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Diffstat (limited to 'src/lib')
48 files changed, 21455 insertions, 0 deletions
diff --git a/src/lib/codemirror/LICENSE b/src/lib/codemirror/LICENSE new file mode 100644 index 0000000..ff7db4b --- /dev/null +++ b/src/lib/codemirror/LICENSE @@ -0,0 +1,21 @@ +MIT License + +Copyright (C) 2017 by Marijn Haverbeke <marijnh@gmail.com> and others + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. diff --git a/src/lib/codemirror/README.md b/src/lib/codemirror/README.md new file mode 100644 index 0000000..92debf4 --- /dev/null +++ b/src/lib/codemirror/README.md @@ -0,0 +1,47 @@ +# CodeMirror + +[](https://travis-ci.org/codemirror/CodeMirror) +[](https://www.npmjs.org/package/codemirror) + +CodeMirror is a versatile text editor implemented in JavaScript for +the browser. It is specialized for editing code, and comes with over +100 language modes and various addons that implement more advanced +editing functionality. Every language comes with fully-featured code +and syntax highlighting to help with reading and editing complex code. + +A rich programming API and a CSS theming system are available for +customizing CodeMirror to fit your application, and extending it with +new functionality. + +You can find more information (and the +[manual](https://codemirror.net/doc/manual.html)) on the [project +page](https://codemirror.net). For questions and discussion, use the +[discussion forum](https://discuss.codemirror.net/). + +See +[CONTRIBUTING.md](https://github.com/codemirror/CodeMirror/blob/master/CONTRIBUTING.md) +for contributing guidelines. + +The CodeMirror community aims to be welcoming to everybody. We use the +[Contributor Covenant +(1.1)](http://contributor-covenant.org/version/1/1/0/) as our code of +conduct. + +### Installation + +Either get the [zip file](https://codemirror.net/codemirror.zip) with +the latest version, or make sure you have [Node](https://nodejs.org/) +installed and run: + + npm install codemirror + +**NOTE**: This is the source repository for the library, and not the +distribution channel. Cloning it is not the recommended way to install +the library, and will in fact not work unless you also run the build +step. + +### Quickstart + +To build the project, make sure you have Node.js installed (at least version 6) +and then `npm install`. To run, just open `index.html` in your +browser (you don't need to run a webserver). Run the tests with `npm test`. diff --git a/src/lib/codemirror/addon/comment/comment.js b/src/lib/codemirror/addon/comment/comment.js new file mode 100644 index 0000000..dac48d0 --- /dev/null +++ b/src/lib/codemirror/addon/comment/comment.js @@ -0,0 +1,211 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: https://codemirror.net/LICENSE + +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../../lib/codemirror")); + else if (typeof define == "function" && define.amd) // AMD + define(["../../lib/codemirror"], mod); + else // Plain browser env + mod(CodeMirror); +})(function(CodeMirror) { + "use strict"; + + var noOptions = {}; + var nonWS = /[^\s\u00a0]/; + var Pos = CodeMirror.Pos, cmp = CodeMirror.cmpPos; + + function firstNonWS(str) { + var found = str.search(nonWS); + return found == -1 ? 0 : found; + } + + CodeMirror.commands.toggleComment = function(cm) { + cm.toggleComment(); + }; + + CodeMirror.defineExtension("toggleComment", function(options) { + if (!options) options = noOptions; + var cm = this; + var minLine = Infinity, ranges = this.listSelections(), mode = null; + for (var i = ranges.length - 1; i >= 0; i--) { + var from = ranges[i].from(), to = ranges[i].to(); + if (from.line >= minLine) continue; + if (to.line >= minLine) to = Pos(minLine, 0); + minLine = from.line; + if (mode == null) { + if (cm.uncomment(from, to, options)) mode = "un"; + else { cm.lineComment(from, to, options); mode = "line"; } + } else if (mode == "un") { + cm.uncomment(from, to, options); + } else { + cm.lineComment(from, to, options); + } + } + }); + + // Rough heuristic to try and detect lines that are part of multi-line string + function probablyInsideString(cm, pos, line) { + return /\bstring\b/.test(cm.getTokenTypeAt(Pos(pos.line, 0))) && !/^[\'\"\`]/.test(line) + } + + function getMode(cm, pos) { + var mode = cm.getMode() + return mode.useInnerComments === false || !mode.innerMode ? mode : cm.getModeAt(pos) + } + + CodeMirror.defineExtension("lineComment", function(from, to, options) { + if (!options) options = noOptions; + var self = this, mode = getMode(self, from); + var firstLine = self.getLine(from.line); + if (firstLine == null || probablyInsideString(self, from, firstLine)) return; + + var commentString = options.lineComment || mode.lineComment; + if (!commentString) { + if (options.blockCommentStart || mode.blockCommentStart) { + options.fullLines = true; + self.blockComment(from, to, options); + } + return; + } + + var end = Math.min(to.ch != 0 || to.line == from.line ? to.line + 1 : to.line, self.lastLine() + 1); + var pad = options.padding == null ? " " : options.padding; + var blankLines = options.commentBlankLines || from.line == to.line; + + self.operation(function() { + if (options.indent) { + var baseString = null; + for (var i = from.line; i < end; ++i) { + var line = self.getLine(i); + var whitespace = line.slice(0, firstNonWS(line)); + if (baseString == null || baseString.length > whitespace.length) { + baseString = whitespace; + } + } + for (var i = from.line; i < end; ++i) { + var line = self.getLine(i), cut = baseString.length; + if (!blankLines && !nonWS.test(line)) continue; + if (line.slice(0, cut) != baseString) cut = firstNonWS(line); + self.replaceRange(baseString + commentString + pad, Pos(i, 0), Pos(i, cut)); + } + } else { + for (var i = from.line; i < end; ++i) { + if (blankLines || nonWS.test(self.getLine(i))) + self.replaceRange(commentString + pad, Pos(i, 0)); + } + } + }); + }); + + CodeMirror.defineExtension("blockComment", function(from, to, options) { + if (!options) options = noOptions; + var self = this, mode = getMode(self, from); + var startString = options.blockCommentStart || mode.blockCommentStart; + var endString = options.blockCommentEnd || mode.blockCommentEnd; + if (!startString || !endString) { + if ((options.lineComment || mode.lineComment) && options.fullLines != false) + self.lineComment(from, to, options); + return; + } + if (/\bcomment\b/.test(self.getTokenTypeAt(Pos(from.line, 0)))) return + + var end = Math.min(to.line, self.lastLine()); + if (end != from.line && to.ch == 0 && nonWS.test(self.getLine(end))) --end; + + var pad = options.padding == null ? " " : options.padding; + if (from.line > end) return; + + self.operation(function() { + if (options.fullLines != false) { + var lastLineHasText = nonWS.test(self.getLine(end)); + self.replaceRange(pad + endString, Pos(end)); + self.replaceRange(startString + pad, Pos(from.line, 0)); + var lead = options.blockCommentLead || mode.blockCommentLead; + if (lead != null) for (var i = from.line + 1; i <= end; ++i) + if (i != end || lastLineHasText) + self.replaceRange(lead + pad, Pos(i, 0)); + } else { + var atCursor = cmp(self.getCursor("to"), to) == 0, empty = !self.somethingSelected() + self.replaceRange(endString, to); + if (atCursor) self.setSelection(empty ? to : self.getCursor("from"), to) + self.replaceRange(startString, from); + } + }); + }); + + CodeMirror.defineExtension("uncomment", function(from, to, options) { + if (!options) options = noOptions; + var self = this, mode = getMode(self, from); + var end = Math.min(to.ch != 0 || to.line == from.line ? to.line : to.line - 1, self.lastLine()), start = Math.min(from.line, end); + + // Try finding line comments + var lineString = options.lineComment || mode.lineComment, lines = []; + var pad = options.padding == null ? " " : options.padding, didSomething; + lineComment: { + if (!lineString) break lineComment; + for (var i = start; i <= end; ++i) { + var line = self.getLine(i); + var found = line.indexOf(lineString); + if (found > -1 && !/comment/.test(self.getTokenTypeAt(Pos(i, found + 1)))) found = -1; + if (found == -1 && nonWS.test(line)) break lineComment; + if (found > -1 && nonWS.test(line.slice(0, found))) break lineComment; + lines.push(line); + } + self.operation(function() { + for (var i = start; i <= end; ++i) { + var line = lines[i - start]; + var pos = line.indexOf(lineString), endPos = pos + lineString.length; + if (pos < 0) continue; + if (line.slice(endPos, endPos + pad.length) == pad) endPos += pad.length; + didSomething = true; + self.replaceRange("", Pos(i, pos), Pos(i, endPos)); + } + }); + if (didSomething) return true; + } + + // Try block comments + var startString = options.blockCommentStart || mode.blockCommentStart; + var endString = options.blockCommentEnd || mode.blockCommentEnd; + if (!startString || !endString) return false; + var lead = options.blockCommentLead || mode.blockCommentLead; + var startLine = self.getLine(start), open = startLine.indexOf(startString) + if (open == -1) return false + var endLine = end == start ? startLine : self.getLine(end) + var close = endLine.indexOf(endString, end == start ? open + startString.length : 0); + var insideStart = Pos(start, open + 1), insideEnd = Pos(end, close + 1) + if (close == -1 || + !/comment/.test(self.getTokenTypeAt(insideStart)) || + !/comment/.test(self.getTokenTypeAt(insideEnd)) || + self.getRange(insideStart, insideEnd, "\n").indexOf(endString) > -1) + return false; + + // Avoid killing block comments completely outside the selection. + // Positions of the last startString before the start of the selection, and the first endString after it. + var lastStart = startLine.lastIndexOf(startString, from.ch); + var firstEnd = lastStart == -1 ? -1 : startLine.slice(0, from.ch).indexOf(endString, lastStart + startString.length); + if (lastStart != -1 && firstEnd != -1 && firstEnd + endString.length != from.ch) return false; + // Positions of the first endString after the end of the selection, and the last startString before it. + firstEnd = endLine.indexOf(endString, to.ch); + var almostLastStart = endLine.slice(to.ch).lastIndexOf(startString, firstEnd - to.ch); + lastStart = (firstEnd == -1 || almostLastStart == -1) ? -1 : to.ch + almostLastStart; + if (firstEnd != -1 && lastStart != -1 && lastStart != to.ch) return false; + + self.operation(function() { + self.replaceRange("", Pos(end, close - (pad && endLine.slice(close - pad.length, close) == pad ? pad.length : 0)), + Pos(end, close + endString.length)); + var openEnd = open + startString.length; + if (pad && startLine.slice(openEnd, openEnd + pad.length) == pad) openEnd += pad.length; + self.replaceRange("", Pos(start, open), Pos(start, openEnd)); + if (lead) for (var i = start + 1; i <= end; ++i) { + var line = self.getLine(i), found = line.indexOf(lead); + if (found == -1 || nonWS.test(line.slice(0, found))) continue; + var foundEnd = found + lead.length; + if (pad && line.slice(foundEnd, foundEnd + pad.length) == pad) foundEnd += pad.length; + self.replaceRange("", Pos(i, found), Pos(i, foundEnd)); + } + }); + return true; + }); +}); diff --git a/src/lib/codemirror/addon/display/panel.js b/src/lib/codemirror/addon/display/panel.js new file mode 100644 index 0000000..29f7e0b --- /dev/null +++ b/src/lib/codemirror/addon/display/panel.js @@ -0,0 +1,133 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: https://codemirror.net/LICENSE + +(function (mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../../lib/codemirror")); + else if (typeof define == "function" && define.amd) // AMD + define(["../../lib/codemirror"], mod); + else // Plain browser env + mod(CodeMirror); +})(function (CodeMirror) { + CodeMirror.defineExtension("addPanel", function (node, options) { + options = options || {}; + + if (!this.state.panels) initPanels(this); + + var info = this.state.panels; + var wrapper = info.wrapper; + var cmWrapper = this.getWrapperElement(); + var replace = options.replace instanceof Panel && !options.replace.cleared; + + if (options.after instanceof Panel && !options.after.cleared) { + wrapper.insertBefore(node, options.before.node.nextSibling); + } else if (options.before instanceof Panel && !options.before.cleared) { + wrapper.insertBefore(node, options.before.node); + } else if (replace) { + wrapper.insertBefore(node, options.replace.node); + options.replace.clear(true); + } else if (options.position == "bottom") { + wrapper.appendChild(node); + } else if (options.position == "before-bottom") { + wrapper.insertBefore(node, cmWrapper.nextSibling); + } else if (options.position == "after-top") { + wrapper.insertBefore(node, cmWrapper); + } else { + wrapper.insertBefore(node, wrapper.firstChild); + } + + var height = (options && options.height) || node.offsetHeight; + + var panel = new Panel(this, node, options, height); + info.panels.push(panel); + + this.setSize(); + if (options.stable && isAtTop(this, node)) + this.scrollTo(null, this.getScrollInfo().top + height); + + return panel; + }); + + function Panel(cm, node, options, height) { + this.cm = cm; + this.node = node; + this.options = options; + this.height = height; + this.cleared = false; + } + + /* when skipRemove is true, clear() was called from addPanel(). + * Thus removePanels() should not be called (issue 5518) */ + Panel.prototype.clear = function (skipRemove) { + if (this.cleared) return; + this.cleared = true; + var info = this.cm.state.panels; + info.panels.splice(info.panels.indexOf(this), 1); + this.cm.setSize(); + if (this.options.stable && isAtTop(this.cm, this.node)) + this.cm.scrollTo(null, this.cm.getScrollInfo().top - this.height) + info.wrapper.removeChild(this.node); + if (info.panels.length == 0 && !skipRemove) removePanels(this.cm); + }; + + Panel.prototype.changed = function () { + this.height = this.node.getBoundingClientRect().height; + this.cm.setSize(); + }; + + function initPanels(cm) { + var wrap = cm.getWrapperElement() + var style = window.getComputedStyle ? window.getComputedStyle(wrap) : wrap.currentStyle; + var height = parseInt(style.height); + var info = cm.state.panels = { + setHeight: wrap.style.height, + panels: [], + wrapper: document.createElement("div") + }; + var hasFocus = cm.hasFocus(), scrollPos = cm.getScrollInfo() + wrap.parentNode.insertBefore(info.wrapper, wrap); + info.wrapper.appendChild(wrap); + cm.scrollTo(scrollPos.left, scrollPos.top) + if (hasFocus) cm.focus(); + + cm._setSize = cm.setSize; + if (height != null) cm.setSize = function (width, newHeight) { + if (!newHeight) newHeight = info.wrapper.offsetHeight; + info.setHeight = newHeight; + if (typeof newHeight != "number") { + var px = /^(\d+\.?\d*)px$/.exec(newHeight); + if (px) { + newHeight = Number(px[1]); + } else { + info.wrapper.style.height = newHeight; + newHeight = info.wrapper.offsetHeight; + } + } + var editorheight = newHeight - info.panels + .map(function (p) { return p.node.getBoundingClientRect().height; }) + .reduce(function (a, b) { return a + b; }, 0); + cm._setSize(width, editorheight); + height = newHeight; + }; + } + + function removePanels(cm) { + var info = cm.state.panels; + cm.state.panels = null; + + var wrap = cm.getWrapperElement() + var hasFocus = cm.hasFocus(), scrollPos = cm.getScrollInfo() + info.wrapper.parentNode.replaceChild(wrap, info.wrapper); + cm.scrollTo(scrollPos.left, scrollPos.top) + if (hasFocus) cm.focus(); + wrap.style.height = info.setHeight; + cm.setSize = cm._setSize; + cm.setSize(); + } + + function isAtTop(cm, dom) { + for (var sibling = dom.nextSibling; sibling; sibling = sibling.nextSibling) + if (sibling == cm.getWrapperElement()) return true + return false + } +}); diff --git a/src/lib/codemirror/addon/edit/closebrackets.js b/src/lib/codemirror/addon/edit/closebrackets.js new file mode 100644 index 0000000..593d443 --- /dev/null +++ b/src/lib/codemirror/addon/edit/closebrackets.js @@ -0,0 +1,201 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: https://codemirror.net/LICENSE + +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../../lib/codemirror")); + else if (typeof define == "function" && define.amd) // AMD + define(["../../lib/codemirror"], mod); + else // Plain browser env + mod(CodeMirror); +})(function(CodeMirror) { + var defaults = { + pairs: "()[]{}''\"\"", + closeBefore: ")]}'\":;>", + triples: "", + explode: "[]{}" + }; + + var Pos = CodeMirror.Pos; + + CodeMirror.defineOption("autoCloseBrackets", false, function(cm, val, old) { + if (old && old != CodeMirror.Init) { + cm.removeKeyMap(keyMap); + cm.state.closeBrackets = null; + } + if (val) { + ensureBound(getOption(val, "pairs")) + cm.state.closeBrackets = val; + cm.addKeyMap(keyMap); + } + }); + + function getOption(conf, name) { + if (name == "pairs" && typeof conf == "string") return conf; + if (typeof conf == "object" && conf[name] != null) return conf[name]; + return defaults[name]; + } + + var keyMap = {Backspace: handleBackspace, Enter: handleEnter}; + function ensureBound(chars) { + for (var i = 0; i < chars.length; i++) { + var ch = chars.charAt(i), key = "'" + ch + "'" + if (!keyMap[key]) keyMap[key] = handler(ch) + } + } + ensureBound(defaults.pairs + "`") + + function handler(ch) { + return function(cm) { return handleChar(cm, ch); }; + } + + function getConfig(cm) { + var deflt = cm.state.closeBrackets; + if (!deflt || deflt.override) return deflt; + var mode = cm.getModeAt(cm.getCursor()); + return mode.closeBrackets || deflt; + } + + function handleBackspace(cm) { + var conf = getConfig(cm); + if (!conf || cm.getOption("disableInput")) return CodeMirror.Pass; + + var pairs = getOption(conf, "pairs"); + var ranges = cm.listSelections(); + for (var i = 0; i < ranges.length; i++) { + if (!ranges[i].empty()) return CodeMirror.Pass; + var around = charsAround(cm, ranges[i].head); + if (!around || pairs.indexOf(around) % 2 != 0) return CodeMirror.Pass; + } + for (var i = ranges.length - 1; i >= 0; i--) { + var cur = ranges[i].head; + cm.replaceRange("", Pos(cur.line, cur.ch - 1), Pos(cur.line, cur.ch + 1), "+delete"); + } + } + + function handleEnter(cm) { + var conf = getConfig(cm); + var explode = conf && getOption(conf, "explode"); + if (!explode || cm.getOption("disableInput")) return CodeMirror.Pass; + + var ranges = cm.listSelections(); + for (var i = 0; i < ranges.length; i++) { + if (!ranges[i].empty()) return CodeMirror.Pass; + var around = charsAround(cm, ranges[i].head); + if (!around || explode.indexOf(around) % 2 != 0) return CodeMirror.Pass; + } + cm.operation(function() { + var linesep = cm.lineSeparator() || "\n"; + cm.replaceSelection(linesep + linesep, null); + moveSel(cm, -1) + ranges = cm.listSelections(); + for (var i = 0; i < ranges.length; i++) { + var line = ranges[i].head.line; + cm.indentLine(line, null, true); + cm.indentLine(line + 1, null, true); + } + }); + } + + function moveSel(cm, dir) { + var newRanges = [], ranges = cm.listSelections(), primary = 0 + for (var i = 0; i < ranges.length; i++) { + var range = ranges[i] + if (range.head == cm.getCursor()) primary = i + var pos = range.head.ch || dir > 0 ? {line: range.head.line, ch: range.head.ch + dir} : {line: range.head.line - 1} + newRanges.push({anchor: pos, head: pos}) + } + cm.setSelections(newRanges, primary) + } + + function contractSelection(sel) { + var inverted = CodeMirror.cmpPos(sel.anchor, sel.head) > 0; + return {anchor: new Pos(sel.anchor.line, sel.anchor.ch + (inverted ? -1 : 1)), + head: new Pos(sel.head.line, sel.head.ch + (inverted ? 1 : -1))}; + } + + function handleChar(cm, ch) { + var conf = getConfig(cm); + if (!conf || cm.getOption("disableInput")) return CodeMirror.Pass; + + var pairs = getOption(conf, "pairs"); + var pos = pairs.indexOf(ch); + if (pos == -1) return CodeMirror.Pass; + + var closeBefore = getOption(conf,"closeBefore"); + + var triples = getOption(conf, "triples"); + + var identical = pairs.charAt(pos + 1) == ch; + var ranges = cm.listSelections(); + var opening = pos % 2 == 0; + + var type; + for (var i = 0; i < ranges.length; i++) { + var range = ranges[i], cur = range.head, curType; + var next = cm.getRange(cur, Pos(cur.line, cur.ch + 1)); + if (opening && !range.empty()) { + curType = "surround"; + } else if ((identical || !opening) && next == ch) { + if (identical && stringStartsAfter(cm, cur)) + curType = "both"; + else if (triples.indexOf(ch) >= 0 && cm.getRange(cur, Pos(cur.line, cur.ch + 3)) == ch + ch + ch) + curType = "skipThree"; + else + curType = "skip"; + } else if (identical && cur.ch > 1 && triples.indexOf(ch) >= 0 && + cm.getRange(Pos(cur.line, cur.ch - 2), cur) == ch + ch) { + if (cur.ch > 2 && /\bstring/.test(cm.getTokenTypeAt(Pos(cur.line, cur.ch - 2)))) return CodeMirror.Pass; + curType = "addFour"; + } else if (identical) { + var prev = cur.ch == 0 ? " " : cm.getRange(Pos(cur.line, cur.ch - 1), cur) + if (!CodeMirror.isWordChar(next) && prev != ch && !CodeMirror.isWordChar(prev)) curType = "both"; + else return CodeMirror.Pass; + } else if (opening && (next.length === 0 || /\s/.test(next) || closeBefore.indexOf(next) > -1)) { + curType = "both"; + } else { + return CodeMirror.Pass; + } + if (!type) type = curType; + else if (type != curType) return CodeMirror.Pass; + } + + var left = pos % 2 ? pairs.charAt(pos - 1) : ch; + var right = pos % 2 ? ch : pairs.charAt(pos + 1); + cm.operation(function() { + if (type == "skip") { + moveSel(cm, 1) + } else if (type == "skipThree") { + moveSel(cm, 3) + } else if (type == "surround") { + var sels = cm.getSelections(); + for (var i = 0; i < sels.length; i++) + sels[i] = left + sels[i] + right; + cm.replaceSelections(sels, "around"); + sels = cm.listSelections().slice(); + for (var i = 0; i < sels.length; i++) + sels[i] = contractSelection(sels[i]); + cm.setSelections(sels); + } else if (type == "both") { + cm.replaceSelection(left + right, null); + cm.triggerElectric(left + right); + moveSel(cm, -1) + } else if (type == "addFour") { + cm.replaceSelection(left + left + left + left, "before"); + moveSel(cm, 1) + } + }); + } + + function charsAround(cm, pos) { + var str = cm.getRange(Pos(pos.line, pos.ch - 1), + Pos(pos.line, pos.ch + 1)); + return str.length == 2 ? str : null; + } + + function stringStartsAfter(cm, pos) { + var token = cm.getTokenAt(Pos(pos.line, pos.ch + 1)) + return /\bstring/.test(token.type) && token.start == pos.ch && + (pos.ch == 0 || !/\bstring/.test(cm.getTokenTypeAt(pos))) + } +}); diff --git a/src/lib/codemirror/addon/edit/matchbrackets.js b/src/lib/codemirror/addon/edit/matchbrackets.js new file mode 100644 index 0000000..43dc884 --- /dev/null +++ b/src/lib/codemirror/addon/edit/matchbrackets.js @@ -0,0 +1,160 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: https://codemirror.net/LICENSE + +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../../lib/codemirror")); + else if (typeof define == "function" && define.amd) // AMD + define(["../../lib/codemirror"], mod); + else // Plain browser env + mod(CodeMirror); +})(function(CodeMirror) { + var ie_lt8 = /MSIE \d/.test(navigator.userAgent) && + (document.documentMode == null || document.documentMode < 8); + + var Pos = CodeMirror.Pos; + + var matching = {"(": ")>", ")": "(<", "[": "]>", "]": "[<", "{": "}>", "}": "{<", "<": ">>", ">": "<<"}; + + function bracketRegex(config) { + return config && config.bracketRegex || /[(){}[\]]/ + } + + function findMatchingBracket(cm, where, config) { + var line = cm.getLineHandle(where.line), pos = where.ch - 1; + var afterCursor = config && config.afterCursor + if (afterCursor == null) + afterCursor = /(^| )cm-fat-cursor($| )/.test(cm.getWrapperElement().className) + var re = bracketRegex(config) + + // A cursor is defined as between two characters, but in in vim command mode + // (i.e. not insert mode), the cursor is visually represented as a + // highlighted box on top of the 2nd character. Otherwise, we allow matches + // from before or after the cursor. + var match = (!afterCursor && pos >= 0 && re.test(line.text.charAt(pos)) && matching[line.text.charAt(pos)]) || + re.test(line.text.charAt(pos + 1)) && matching[line.text.charAt(++pos)]; + if (!match) return null; + var dir = match.charAt(1) == ">" ? 1 : -1; + if (config && config.strict && (dir > 0) != (pos == where.ch)) return null; + var style = cm.getTokenTypeAt(Pos(where.line, pos + 1)); + + var found = scanForBracket(cm, Pos(where.line, pos + (dir > 0 ? 1 : 0)), dir, style, config); + if (found == null) return null; + return {from: Pos(where.line, pos), to: found && found.pos, + match: found && found.ch == match.charAt(0), forward: dir > 0}; + } + + // bracketRegex is used to specify which type of bracket to scan + // should be a regexp, e.g. /[[\]]/ + // + // Note: If "where" is on an open bracket, then this bracket is ignored. + // + // Returns false when no bracket was found, null when it reached + // maxScanLines and gave up + function scanForBracket(cm, where, dir, style, config) { + var maxScanLen = (config && config.maxScanLineLength) || 10000; + var maxScanLines = (config && config.maxScanLines) || 1000; + + var stack = []; + var re = bracketRegex(config) + var lineEnd = dir > 0 ? Math.min(where.line + maxScanLines, cm.lastLine() + 1) + : Math.max(cm.firstLine() - 1, where.line - maxScanLines); + for (var lineNo = where.line; lineNo != lineEnd; lineNo += dir) { + var line = cm.getLine(lineNo); + if (!line) continue; + var pos = dir > 0 ? 0 : line.length - 1, end = dir > 0 ? line.length : -1; + if (line.length > maxScanLen) continue; + if (lineNo == where.line) pos = where.ch - (dir < 0 ? 1 : 0); + for (; pos != end; pos += dir) { + var ch = line.charAt(pos); + if (re.test(ch) && (style === undefined || + (cm.getTokenTypeAt(Pos(lineNo, pos + 1)) || "") == (style || ""))) { + var match = matching[ch]; + if (match && (match.charAt(1) == ">") == (dir > 0)) stack.push(ch); + else if (!stack.length) return {pos: Pos(lineNo, pos), ch: ch}; + else stack.pop(); + } + } + } + return lineNo - dir == (dir > 0 ? cm.lastLine() : cm.firstLine()) ? false : null; + } + + function matchBrackets(cm, autoclear, config) { + // Disable brace matching in long lines, since it'll cause hugely slow updates + var maxHighlightLen = cm.state.matchBrackets.maxHighlightLineLength || 1000, + highlightNonMatching = config && config.highlightNonMatching; + var marks = [], ranges = cm.listSelections(); + for (var i = 0; i < ranges.length; i++) { + var match = ranges[i].empty() && findMatchingBracket(cm, ranges[i].head, config); + if (match && (match.match || highlightNonMatching !== false) && cm.getLine(match.from.line).length <= maxHighlightLen) { + var style = match.match ? "CodeMirror-matchingbracket" : "CodeMirror-nonmatchingbracket"; + marks.push(cm.markText(match.from, Pos(match.from.line, match.from.ch + 1), {className: style})); + if (match.to && cm.getLine(match.to.line).length <= maxHighlightLen) + marks.push(cm.markText(match.to, Pos(match.to.line, match.to.ch + 1), {className: style})); + } + } + + if (marks.length) { + // Kludge to work around the IE bug from issue #1193, where text + // input stops going to the textarea whenever this fires. + if (ie_lt8 && cm.state.focused) cm.focus(); + + var clear = function() { + cm.operation(function() { + for (var i = 0; i < marks.length; i++) marks[i].clear(); + }); + }; + if (autoclear) setTimeout(clear, 800); + else return clear; + } + } + + function doMatchBrackets(cm) { + cm.operation(function() { + if (cm.state.matchBrackets.currentlyHighlighted) { + cm.state.matchBrackets.currentlyHighlighted(); + cm.state.matchBrackets.currentlyHighlighted = null; + } + cm.state.matchBrackets.currentlyHighlighted = matchBrackets(cm, false, cm.state.matchBrackets); + }); + } + + function clearHighlighted(cm) { + if (cm.state.matchBrackets && cm.state.matchBrackets.currentlyHighlighted) { + cm.state.matchBrackets.currentlyHighlighted(); + cm.state.matchBrackets.currentlyHighlighted = null; + } + } + + CodeMirror.defineOption("matchBrackets", false, function(cm, val, old) { + if (old && old != CodeMirror.Init) { + cm.off("cursorActivity", doMatchBrackets); + cm.off("focus", doMatchBrackets) + cm.off("blur", clearHighlighted) + clearHighlighted(cm); + } + if (val) { + cm.state.matchBrackets = typeof val == "object" ? val : {}; + cm.on("cursorActivity", doMatchBrackets); + cm.on("focus", doMatchBrackets) + cm.on("blur", clearHighlighted) + } + }); + + CodeMirror.defineExtension("matchBrackets", function() {matchBrackets(this, true);}); + CodeMirror.defineExtension("findMatchingBracket", function(pos, config, oldConfig){ + // Backwards-compatibility kludge + if (oldConfig || typeof config == "boolean") { + if (!oldConfig) { + config = config ? {strict: true} : null + } else { + oldConfig.strict = config + config = oldConfig + } + } + return findMatchingBracket(this, pos, config) + }); + CodeMirror.defineExtension("scanForBracket", function(pos, dir, style, config){ + return scanForBracket(this, pos, dir, style, config); + }); +}); diff --git a/src/lib/codemirror/addon/fold/foldcode.js b/src/lib/codemirror/addon/fold/foldcode.js new file mode 100644 index 0000000..887df3f --- /dev/null +++ b/src/lib/codemirror/addon/fold/foldcode.js @@ -0,0 +1,157 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: https://codemirror.net/LICENSE + +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../../lib/codemirror")); + else if (typeof define == "function" && define.amd) // AMD + define(["../../lib/codemirror"], mod); + else // Plain browser env + mod(CodeMirror); +})(function(CodeMirror) { + "use strict"; + + function doFold(cm, pos, options, force) { + if (options && options.call) { + var finder = options; + options = null; + } else { + var finder = getOption(cm, options, "rangeFinder"); + } + if (typeof pos == "number") pos = CodeMirror.Pos(pos, 0); + var minSize = getOption(cm, options, "minFoldSize"); + + function getRange(allowFolded) { + var range = finder(cm, pos); + if (!range || range.to.line - range.from.line < minSize) return null; + var marks = cm.findMarksAt(range.from); + for (var i = 0; i < marks.length; ++i) { + if (marks[i].__isFold && force !== "fold") { + if (!allowFolded) return null; + range.cleared = true; + marks[i].clear(); + } + } + return range; + } + + var range = getRange(true); + if (getOption(cm, options, "scanUp")) while (!range && pos.line > cm.firstLine()) { + pos = CodeMirror.Pos(pos.line - 1, 0); + range = getRange(false); + } + if (!range || range.cleared || force === "unfold") return; + + var myWidget = makeWidget(cm, options, range); + CodeMirror.on(myWidget, "mousedown", function(e) { + myRange.clear(); + CodeMirror.e_preventDefault(e); + }); + var myRange = cm.markText(range.from, range.to, { + replacedWith: myWidget, + clearOnEnter: getOption(cm, options, "clearOnEnter"), + __isFold: true + }); + myRange.on("clear", function(from, to) { + CodeMirror.signal(cm, "unfold", cm, from, to); + }); + CodeMirror.signal(cm, "fold", cm, range.from, range.to); + } + + function makeWidget(cm, options, range) { + var widget = getOption(cm, options, "widget"); + + if (typeof widget == "function") { + widget = widget(range.from, range.to); + } + + if (typeof widget == "string") { + var text = document.createTextNode(widget); + widget = document.createElement("span"); + widget.appendChild(text); + widget.className = "CodeMirror-foldmarker"; + } else if (widget) { + widget = widget.cloneNode(true) + } + return widget; + } + + // Clumsy backwards-compatible interface + CodeMirror.newFoldFunction = function(rangeFinder, widget) { + return function(cm, pos) { doFold(cm, pos, {rangeFinder: rangeFinder, widget: widget}); }; + }; + + // New-style interface + CodeMirror.defineExtension("foldCode", function(pos, options, force) { + doFold(this, pos, options, force); + }); + + CodeMirror.defineExtension("isFolded", function(pos) { + var marks = this.findMarksAt(pos); + for (var i = 0; i < marks.length; ++i) + if (marks[i].__isFold) return true; + }); + + CodeMirror.commands.toggleFold = function(cm) { + cm.foldCode(cm.getCursor()); + }; + CodeMirror.commands.fold = function(cm) { + cm.foldCode(cm.getCursor(), null, "fold"); + }; + CodeMirror.commands.unfold = function(cm) { + cm.foldCode(cm.getCursor(), null, "unfold"); + }; + CodeMirror.commands.foldAll = function(cm) { + cm.operation(function() { + for (var i = cm.firstLine(), e = cm.lastLine(); i <= e; i++) + cm.foldCode(CodeMirror.Pos(i, 0), null, "fold"); + }); + }; + CodeMirror.commands.unfoldAll = function(cm) { + cm.operation(function() { + for (var i = cm.firstLine(), e = cm.lastLine(); i <= e; i++) + cm.foldCode(CodeMirror.Pos(i, 0), null, "unfold"); + }); + }; + + CodeMirror.registerHelper("fold", "combine", function() { + var funcs = Array.prototype.slice.call(arguments, 0); + return function(cm, start) { + for (var i = 0; i < funcs.length; ++i) { + var found = funcs[i](cm, start); + if (found) return found; + } + }; + }); + + CodeMirror.registerHelper("fold", "auto", function(cm, start) { + var helpers = cm.getHelpers(start, "fold"); + for (var i = 0; i < helpers.length; i++) { + var cur = helpers[i](cm, start); + if (cur) return cur; + } + }); + + var defaultOptions = { + rangeFinder: CodeMirror.fold.auto, + widget: "\u2194", + minFoldSize: 0, + scanUp: false, + clearOnEnter: true + }; + + CodeMirror.defineOption("foldOptions", null); + + function getOption(cm, options, name) { + if (options && options[name] !== undefined) + return options[name]; + var editorOptions = cm.options.foldOptions; + if (editorOptions && editorOptions[name] !== undefined) + return editorOptions[name]; + return defaultOptions[name]; + } + + CodeMirror.defineExtension("foldOption", function(options, name) { + return getOption(this, options, name); + }); +}); diff --git a/src/lib/codemirror/addon/fold/foldgutter.css b/src/lib/codemirror/addon/fold/foldgutter.css new file mode 100644 index 0000000..ad19ae2 --- /dev/null +++ b/src/lib/codemirror/addon/fold/foldgutter.css @@ -0,0 +1,20 @@ +.CodeMirror-foldmarker { + color: blue; + text-shadow: #b9f 1px 1px 2px, #b9f -1px -1px 2px, #b9f 1px -1px 2px, #b9f -1px 1px 2px; + font-family: arial; + line-height: .3; + cursor: pointer; +} +.CodeMirror-foldgutter { + width: .7em; +} +.CodeMirror-foldgutter-open, +.CodeMirror-foldgutter-folded { + cursor: pointer; +} +.CodeMirror-foldgutter-open:after { + content: "\25BE"; +} +.CodeMirror-foldgutter-folded:after { + content: "\25B8"; +} diff --git a/src/lib/codemirror/addon/fold/foldgutter.js b/src/lib/codemirror/addon/fold/foldgutter.js new file mode 100644 index 0000000..7d46a60 --- /dev/null +++ b/src/lib/codemirror/addon/fold/foldgutter.js @@ -0,0 +1,163 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: https://codemirror.net/LICENSE + +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../../lib/codemirror"), require("./foldcode")); + else if (typeof define == "function" && define.amd) // AMD + define(["../../lib/codemirror", "./foldcode"], mod); + else // Plain browser env + mod(CodeMirror); +})(function(CodeMirror) { + "use strict"; + + CodeMirror.defineOption("foldGutter", false, function(cm, val, old) { + if (old && old != CodeMirror.Init) { + cm.clearGutter(cm.state.foldGutter.options.gutter); + cm.state.foldGutter = null; + cm.off("gutterClick", onGutterClick); + cm.off("changes", onChange); + cm.off("viewportChange", onViewportChange); + cm.off("fold", onFold); + cm.off("unfold", onFold); + cm.off("swapDoc", onChange); + } + if (val) { + cm.state.foldGutter = new State(parseOptions(val)); + updateInViewport(cm); + cm.on("gutterClick", onGutterClick); + cm.on("changes", onChange); + cm.on("viewportChange", onViewportChange); + cm.on("fold", onFold); + cm.on("unfold", onFold); + cm.on("swapDoc", onChange); + } + }); + + var Pos = CodeMirror.Pos; + + function State(options) { + this.options = options; + this.from = this.to = 0; + } + + function parseOptions(opts) { + if (opts === true) opts = {}; + if (opts.gutter == null) opts.gutter = "CodeMirror-foldgutter"; + if (opts.indicatorOpen == null) opts.indicatorOpen = "CodeMirror-foldgutter-open"; + if (opts.indicatorFolded == null) opts.indicatorFolded = "CodeMirror-foldgutter-folded"; + return opts; + } + + function isFolded(cm, line) { + var marks = cm.findMarks(Pos(line, 0), Pos(line + 1, 0)); + for (var i = 0; i < marks.length; ++i) { + if (marks[i].__isFold) { + var fromPos = marks[i].find(-1); + if (fromPos && fromPos.line === line) + return marks[i]; + } + } + } + + function marker(spec) { + if (typeof spec == "string") { + var elt = document.createElement("div"); + elt.className = spec + " CodeMirror-guttermarker-subtle"; + return elt; + } else { + return spec.cloneNode(true); + } + } + + function updateFoldInfo(cm, from, to) { + var opts = cm.state.foldGutter.options, cur = from - 1; + var minSize = cm.foldOption(opts, "minFoldSize"); + var func = cm.foldOption(opts, "rangeFinder"); + // we can reuse the built-in indicator element if its className matches the new state + var clsFolded = typeof opts.indicatorFolded == "string" && classTest(opts.indicatorFolded); + var clsOpen = typeof opts.indicatorOpen == "string" && classTest(opts.indicatorOpen); + cm.eachLine(from, to, function(line) { + ++cur; + var mark = null; + var old = line.gutterMarkers; + if (old) old = old[opts.gutter]; + if (isFolded(cm, cur)) { + if (clsFolded && old && clsFolded.test(old.className)) return; + mark = marker(opts.indicatorFolded); + } else { + var pos = Pos(cur, 0); + var range = func && func(cm, pos); + if (range && range.to.line - range.from.line >= minSize) { + if (clsOpen && old && clsOpen.test(old.className)) return; + mark = marker(opts.indicatorOpen); + } + } + if (!mark && !old) return; + cm.setGutterMarker(line, opts.gutter, mark); + }); + } + + // copied from CodeMirror/src/util/dom.js + function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*") } + + function updateInViewport(cm) { + var vp = cm.getViewport(), state = cm.state.foldGutter; + if (!state) return; + cm.operation(function() { + updateFoldInfo(cm, vp.from, vp.to); + }); + state.from = vp.from; state.to = vp.to; + } + + function onGutterClick(cm, line, gutter) { + var state = cm.state.foldGutter; + if (!state) return; + var opts = state.options; + if (gutter != opts.gutter) return; + var folded = isFolded(cm, line); + if (folded) folded.clear(); + else cm.foldCode(Pos(line, 0), opts); + } + + function onChange(cm) { + var state = cm.state.foldGutter; + if (!state) return; + var opts = state.options; + state.from = state.to = 0; + clearTimeout(state.changeUpdate); + state.changeUpdate = setTimeout(function() { updateInViewport(cm); }, opts.foldOnChangeTimeSpan || 600); + } + + function onViewportChange(cm) { + var state = cm.state.foldGutter; + if (!state) return; + var opts = state.options; + clearTimeout(state.changeUpdate); + state.changeUpdate = setTimeout(function() { + var vp = cm.getViewport(); + if (state.from == state.to || vp.from - state.to > 20 || state.from - vp.to > 20) { + updateInViewport(cm); + } else { + cm.operation(function() { + if (vp.from < state.from) { + updateFoldInfo(cm, vp.from, state.from); + state.from = vp.from; + } + if (vp.to > state.to) { + updateFoldInfo(cm, state.to, vp.to); + state.to = vp.to; + } + }); + } + }, opts.updateViewportTimeSpan || 400); + } + + function onFold(cm, from) { + var state = cm.state.foldGutter; + if (!state) return; + var line = from.line; + if (line >= state.from && line < state.to) + updateFoldInfo(cm, line, line + 1); + } +}); diff --git a/src/lib/codemirror/addon/hint/show-hint.css b/src/lib/codemirror/addon/hint/show-hint.css new file mode 100644 index 0000000..5617ccc --- /dev/null +++ b/src/lib/codemirror/addon/hint/show-hint.css @@ -0,0 +1,36 @@ +.CodeMirror-hints { + position: absolute; + z-index: 10; + overflow: hidden; + list-style: none; + + margin: 0; + padding: 2px; + + -webkit-box-shadow: 2px 3px 5px rgba(0,0,0,.2); + -moz-box-shadow: 2px 3px 5px rgba(0,0,0,.2); + box-shadow: 2px 3px 5px rgba(0,0,0,.2); + border-radius: 3px; + border: 1px solid silver; + + background: white; + font-size: 90%; + font-family: monospace; + + max-height: 20em; + overflow-y: auto; +} + +.CodeMirror-hint { + margin: 0; + padding: 0 4px; + border-radius: 2px; + white-space: pre; + color: black; + cursor: pointer; +} + +li.CodeMirror-hint-active { + background: #08f; + color: white; +} diff --git a/src/lib/codemirror/addon/hint/show-hint.js b/src/lib/codemirror/addon/hint/show-hint.js new file mode 100644 index 0000000..a9f2ded --- /dev/null +++ b/src/lib/codemirror/addon/hint/show-hint.js @@ -0,0 +1,509 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: https://codemirror.net/LICENSE + +// declare global: DOMRect + +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../../lib/codemirror")); + else if (typeof define == "function" && define.amd) // AMD + define(["../../lib/codemirror"], mod); + else // Plain browser env + mod(CodeMirror); +})(function(CodeMirror) { + "use strict"; + + var HINT_ELEMENT_CLASS = "CodeMirror-hint"; + var ACTIVE_HINT_ELEMENT_CLASS = "CodeMirror-hint-active"; + + // This is the old interface, kept around for now to stay + // backwards-compatible. + CodeMirror.showHint = function(cm, getHints, options) { + if (!getHints) return cm.showHint(options); + if (options && options.async) getHints.async = true; + var newOpts = {hint: getHints}; + if (options) for (var prop in options) newOpts[prop] = options[prop]; + return cm.showHint(newOpts); + }; + + CodeMirror.defineExtension("showHint", function(options) { + options = parseOptions(this, this.getCursor("start"), options); + var selections = this.listSelections() + if (selections.length > 1) return; + // By default, don't allow completion when something is selected. + // A hint function can have a `supportsSelection` property to + // indicate that it can handle selections. + if (this.somethingSelected()) { + if (!options.hint.supportsSelection) return; + // Don't try with cross-line selections + for (var i = 0; i < selections.length; i++) + if (selections[i].head.line != selections[i].anchor.line) return; + } + + if (this.state.completionActive) this.state.completionActive.close(); + var completion = this.state.completionActive = new Completion(this, options); + if (!completion.options.hint) return; + + CodeMirror.signal(this, "startCompletion", this); + completion.update(true); + }); + + CodeMirror.defineExtension("closeHint", function() { + if (this.state.completionActive) this.state.completionActive.close() + }) + + function Completion(cm, options) { + this.cm = cm; + this.options = options; + this.widget = null; + this.debounce = 0; + this.tick = 0; + this.startPos = this.cm.getCursor("start"); + this.startLen = this.cm.getLine(this.startPos.line).length - this.cm.getSelection().length; + + if (this.options.updateOnCursorActivity) { + var self = this; + cm.on("cursorActivity", this.activityFunc = function() { self.cursorActivity(); }); + } + } + + var requestAnimationFrame = window.requestAnimationFrame || function(fn) { + return setTimeout(fn, 1000/60); + }; + var cancelAnimationFrame = window.cancelAnimationFrame || clearTimeout; + + Completion.prototype = { + close: function() { + if (!this.active()) return; + this.cm.state.completionActive = null; + this.tick = null; + if (this.options.updateOnCursorActivity) { + this.cm.off("cursorActivity", this.activityFunc); + } + + if (this.widget && this.data) CodeMirror.signal(this.data, "close"); + if (this.widget) this.widget.close(); + CodeMirror.signal(this.cm, "endCompletion", this.cm); + }, + + active: function() { + return this.cm.state.completionActive == this; + }, + + pick: function(data, i) { + var completion = data.list[i], self = this; + this.cm.operation(function() { + if (completion.hint) + completion.hint(self.cm, data, completion); + else + self.cm.replaceRange(getText(completion), completion.from || data.from, + completion.to || data.to, "complete"); + CodeMirror.signal(data, "pick", completion); + self.cm.scrollIntoView(); + }); + if (this.options.closeOnPick) { + this.close(); + } + }, + + cursorActivity: function() { + if (this.debounce) { + cancelAnimationFrame(this.debounce); + this.debounce = 0; + } + + var identStart = this.startPos; + if(this.data) { + identStart = this.data.from; + } + + var pos = this.cm.getCursor(), line = this.cm.getLine(pos.line); + if (pos.line != this.startPos.line || line.length - pos.ch != this.startLen - this.startPos.ch || + pos.ch < identStart.ch || this.cm.somethingSelected() || + (!pos.ch || this.options.closeCharacters.test(line.charAt(pos.ch - 1)))) { + this.close(); + } else { + var self = this; + this.debounce = requestAnimationFrame(function() {self.update();}); + if (this.widget) this.widget.disable(); + } + }, + + update: function(first) { + if (this.tick == null) return + var self = this, myTick = ++this.tick + fetchHints(this.options.hint, this.cm, this.options, function(data) { + if (self.tick == myTick) self.finishUpdate(data, first) + }) + }, + + finishUpdate: function(data, first) { + if (this.data) CodeMirror.signal(this.data, "update"); + + var picked = (this.widget && this.widget.picked) || (first && this.options.completeSingle); + if (this.widget) this.widget.close(); + + this.data = data; + + if (data && data.list.length) { + if (picked && data.list.length == 1) { + this.pick(data, 0); + } else { + this.widget = new Widget(this, data); + CodeMirror.signal(data, "shown"); + } + } + } + }; + + function parseOptions(cm, pos, options) { + var editor = cm.options.hintOptions; + var out = {}; + for (var prop in defaultOptions) out[prop] = defaultOptions[prop]; + if (editor) for (var prop in editor) + if (editor[prop] !== undefined) out[prop] = editor[prop]; + if (options) for (var prop in options) + if (options[prop] !== undefined) out[prop] = options[prop]; + if (out.hint.resolve) out.hint = out.hint.resolve(cm, pos) + return out; + } + + function getText(completion) { + if (typeof completion == "string") return completion; + else return completion.text; + } + + function buildKeyMap(completion, handle) { + var baseMap = { + Up: function() {handle.moveFocus(-1);}, + Down: function() {handle.moveFocus(1);}, + PageUp: function() {handle.moveFocus(-handle.menuSize() + 1, true);}, + PageDown: function() {handle.moveFocus(handle.menuSize() - 1, true);}, + Home: function() {handle.setFocus(0);}, + End: function() {handle.setFocus(handle.length - 1);}, + Enter: handle.pick, + Tab: handle.pick, + Esc: handle.close + }; + + var mac = /Mac/.test(navigator.platform); + + if (mac) { + baseMap["Ctrl-P"] = function() {handle.moveFocus(-1);}; + baseMap["Ctrl-N"] = function() {handle.moveFocus(1);}; + } + + var custom = completion.options.customKeys; + var ourMap = custom ? {} : baseMap; + function addBinding(key, val) { + var bound; + if (typeof val != "string") + bound = function(cm) { return val(cm, handle); }; + // This mechanism is deprecated + else if (baseMap.hasOwnProperty(val)) + bound = baseMap[val]; + else + bound = val; + ourMap[key] = bound; + } + if (custom) + for (var key in custom) if (custom.hasOwnProperty(key)) + addBinding(key, custom[key]); + var extra = completion.options.extraKeys; + if (extra) + for (var key in extra) if (extra.hasOwnProperty(key)) + addBinding(key, extra[key]); + return ourMap; + } + + function getHintElement(hintsElement, el) { + while (el && el != hintsElement) { + if (el.nodeName.toUpperCase() === "LI" && el.parentNode == hintsElement) return el; + el = el.parentNode; + } + } + + function Widget(completion, data) { + this.completion = completion; + this.data = data; + this.picked = false; + var widget = this, cm = completion.cm; + var ownerDocument = cm.getInputField().ownerDocument; + var parentWindow = ownerDocument.defaultView || ownerDocument.parentWindow; + + var hints = this.hints = ownerDocument.createElement("ul"); + var theme = completion.cm.options.theme; + hints.className = "CodeMirror-hints " + theme; + this.selectedHint = data.selectedHint || 0; + + var completions = data.list; + for (var i = 0; i < completions.length; ++i) { + var elt = hints.appendChild(ownerDocument.createElement("li")), cur = completions[i]; + var className = HINT_ELEMENT_CLASS + (i != this.selectedHint ? "" : " " + ACTIVE_HINT_ELEMENT_CLASS); + if (cur.className != null) className = cur.className + " " + className; + elt.className = className; + if (cur.render) cur.render(elt, data, cur); + else elt.appendChild(ownerDocument.createTextNode(cur.displayText || getText(cur))); + elt.hintId = i; + } + + var container = completion.options.container || ownerDocument.body; + var pos = cm.cursorCoords(completion.options.alignWithWord ? data.from : null); + var left = pos.left, top = pos.bottom, below = true; + var offsetLeft = 0, offsetTop = 0; + if (container !== ownerDocument.body) { + // We offset the cursor position because left and top are relative to the offsetParent's top left corner. + var isContainerPositioned = ['absolute', 'relative', 'fixed'].indexOf(parentWindow.getComputedStyle(container).position) !== -1; + var offsetParent = isContainerPositioned ? container : container.offsetParent; + var offsetParentPosition = offsetParent.getBoundingClientRect(); + var bodyPosition = ownerDocument.body.getBoundingClientRect(); + offsetLeft = (offsetParentPosition.left - bodyPosition.left - offsetParent.scrollLeft); + offsetTop = (offsetParentPosition.top - bodyPosition.top - offsetParent.scrollTop); + } + hints.style.left = (left - offsetLeft) + "px"; + hints.style.top = (top - offsetTop) + "px"; + + // If we're at the edge of the screen, then we want the menu to appear on the left of the cursor. + var winW = parentWindow.innerWidth || Math.max(ownerDocument.body.offsetWidth, ownerDocument.documentElement.offsetWidth); + var winH = parentWindow.innerHeight || Math.max(ownerDocument.body.offsetHeight, ownerDocument.documentElement.offsetHeight); + container.appendChild(hints); + + var box = completion.options.moveOnOverlap ? hints.getBoundingClientRect() : new DOMRect(); + var scrolls = completion.options.paddingForScrollbar ? hints.scrollHeight > hints.clientHeight + 1 : false; + + // Compute in the timeout to avoid reflow on init + var startScroll; + setTimeout(function() { startScroll = cm.getScrollInfo(); }); + + var overlapY = box.bottom - winH; + if (overlapY > 0) { + var height = box.bottom - box.top, curTop = pos.top - (pos.bottom - box.top); + if (curTop - height > 0) { // Fits above cursor + hints.style.top = (top = pos.top - height - offsetTop) + "px"; + below = false; + } else if (height > winH) { + hints.style.height = (winH - 5) + "px"; + hints.style.top = (top = pos.bottom - box.top - offsetTop) + "px"; + var cursor = cm.getCursor(); + if (data.from.ch != cursor.ch) { + pos = cm.cursorCoords(cursor); + hints.style.left = (left = pos.left - offsetLeft) + "px"; + box = hints.getBoundingClientRect(); + } + } + } + var overlapX = box.right - winW; + if (overlapX > 0) { + if (box.right - box.left > winW) { + hints.style.width = (winW - 5) + "px"; + overlapX -= (box.right - box.left) - winW; + } + hints.style.left = (left = pos.left - overlapX - offsetLeft) + "px"; + } + if (scrolls) for (var node = hints.firstChild; node; node = node.nextSibling) + node.style.paddingRight = cm.display.nativeBarWidth + "px" + + cm.addKeyMap(this.keyMap = buildKeyMap(completion, { + moveFocus: function(n, avoidWrap) { widget.changeActive(widget.selectedHint + n, avoidWrap); }, + setFocus: function(n) { widget.changeActive(n); }, + menuSize: function() { return widget.screenAmount(); }, + length: completions.length, + close: function() { completion.close(); }, + pick: function() { widget.pick(); }, + data: data + })); + + if (completion.options.closeOnUnfocus) { + var closingOnBlur; + cm.on("blur", this.onBlur = function() { closingOnBlur = setTimeout(function() { completion.close(); }, 100); }); + cm.on("focus", this.onFocus = function() { clearTimeout(closingOnBlur); }); + } + + cm.on("scroll", this.onScroll = function() { + var curScroll = cm.getScrollInfo(), editor = cm.getWrapperElement().getBoundingClientRect(); + var newTop = top + startScroll.top - curScroll.top; + var point = newTop - (parentWindow.pageYOffset || (ownerDocument.documentElement || ownerDocument.body).scrollTop); + if (!below) point += hints.offsetHeight; + if (point <= editor.top || point >= editor.bottom) return completion.close(); + hints.style.top = newTop + "px"; + hints.style.left = (left + startScroll.left - curScroll.left) + "px"; + }); + + CodeMirror.on(hints, "dblclick", function(e) { + var t = getHintElement(hints, e.target || e.srcElement); + if (t && t.hintId != null) {widget.changeActive(t.hintId); widget.pick();} + }); + + CodeMirror.on(hints, "click", function(e) { + var t = getHintElement(hints, e.target || e.srcElement); + if (t && t.hintId != null) { + widget.changeActive(t.hintId); + if (completion.options.completeOnSingleClick) widget.pick(); + } + }); + + CodeMirror.on(hints, "mousedown", function() { + setTimeout(function(){cm.focus();}, 20); + }); + + // The first hint doesn't need to be scrolled to on init + var selectedHintRange = this.getSelectedHintRange(); + if (selectedHintRange.from !== 0 || selectedHintRange.to !== 0) { + this.scrollToActive(); + } + + CodeMirror.signal(data, "select", completions[this.selectedHint], hints.childNodes[this.selectedHint]); + return true; + } + + Widget.prototype = { + close: function() { + if (this.completion.widget != this) return; + this.completion.widget = null; + this.hints.parentNode.removeChild(this.hints); + this.completion.cm.removeKeyMap(this.keyMap); + + var cm = this.completion.cm; + if (this.completion.options.closeOnUnfocus) { + cm.off("blur", this.onBlur); + cm.off("focus", this.onFocus); + } + cm.off("scroll", this.onScroll); + }, + + disable: function() { + this.completion.cm.removeKeyMap(this.keyMap); + var widget = this; + this.keyMap = {Enter: function() { widget.picked = true; }}; + this.completion.cm.addKeyMap(this.keyMap); + }, + + pick: function() { + this.completion.pick(this.data, this.selectedHint); + }, + + changeActive: function(i, avoidWrap) { + if (i >= this.data.list.length) + i = avoidWrap ? this.data.list.length - 1 : 0; + else if (i < 0) + i = avoidWrap ? 0 : this.data.list.length - 1; + if (this.selectedHint == i) return; + var node = this.hints.childNodes[this.selectedHint]; + if (node) node.className = node.className.replace(" " + ACTIVE_HINT_ELEMENT_CLASS, ""); + node = this.hints.childNodes[this.selectedHint = i]; + node.className += " " + ACTIVE_HINT_ELEMENT_CLASS; + this.scrollToActive() + CodeMirror.signal(this.data, "select", this.data.list[this.selectedHint], node); + }, + + scrollToActive: function() { + var selectedHintRange = this.getSelectedHintRange(); + var node1 = this.hints.childNodes[selectedHintRange.from]; + var node2 = this.hints.childNodes[selectedHintRange.to]; + var firstNode = this.hints.firstChild; + if (node1.offsetTop < this.hints.scrollTop) + this.hints.scrollTop = node1.offsetTop - firstNode.offsetTop; + else if (node2.offsetTop + node2.offsetHeight > this.hints.scrollTop + this.hints.clientHeight) + this.hints.scrollTop = node2.offsetTop + node2.offsetHeight - this.hints.clientHeight + firstNode.offsetTop; + }, + + screenAmount: function() { + return Math.floor(this.hints.clientHeight / this.hints.firstChild.offsetHeight) || 1; + }, + + getSelectedHintRange: function() { + var margin = this.completion.options.scrollMargin || 0; + return { + from: Math.max(0, this.selectedHint - margin), + to: Math.min(this.data.list.length - 1, this.selectedHint + margin), + }; + } + }; + + function applicableHelpers(cm, helpers) { + if (!cm.somethingSelected()) return helpers + var result = [] + for (var i = 0; i < helpers.length; i++) + if (helpers[i].supportsSelection) result.push(helpers[i]) + return result + } + + function fetchHints(hint, cm, options, callback) { + if (hint.async) { + hint(cm, callback, options) + } else { + var result = hint(cm, options) + if (result && result.then) result.then(callback) + else callback(result) + } + } + + function resolveAutoHints(cm, pos) { + var helpers = cm.getHelpers(pos, "hint"), words + if (helpers.length) { + var resolved = function(cm, callback, options) { + var app = applicableHelpers(cm, helpers); + function run(i) { + if (i == app.length) return callback(null) + fetchHints(app[i], cm, options, function(result) { + if (result && result.list.length > 0) callback(result) + else run(i + 1) + }) + } + run(0) + } + resolved.async = true + resolved.supportsSelection = true + return resolved + } else if (words = cm.getHelper(cm.getCursor(), "hintWords")) { + return function(cm) { return CodeMirror.hint.fromList(cm, {words: words}) } + } else if (CodeMirror.hint.anyword) { + return function(cm, options) { return CodeMirror.hint.anyword(cm, options) } + } else { + return function() {} + } + } + + CodeMirror.registerHelper("hint", "auto", { + resolve: resolveAutoHints + }); + + CodeMirror.registerHelper("hint", "fromList", function(cm, options) { + var cur = cm.getCursor(), token = cm.getTokenAt(cur) + var term, from = CodeMirror.Pos(cur.line, token.start), to = cur + if (token.start < cur.ch && /\w/.test(token.string.charAt(cur.ch - token.start - 1))) { + term = token.string.substr(0, cur.ch - token.start) + } else { + term = "" + from = cur + } + var found = []; + for (var i = 0; i < options.words.length; i++) { + var word = options.words[i]; + if (word.slice(0, term.length) == term) + found.push(word); + } + + if (found.length) return {list: found, from: from, to: to}; + }); + + CodeMirror.commands.autocomplete = CodeMirror.showHint; + + var defaultOptions = { + hint: CodeMirror.hint.auto, + completeSingle: true, + alignWithWord: true, + closeCharacters: /[\s()\[\]{};:>,]/, + closeOnPick: true, + closeOnUnfocus: true, + updateOnCursorActivity: true, + completeOnSingleClick: true, + container: null, + customKeys: null, + extraKeys: null, + paddingForScrollbar: true, + moveOnOverlap: true, + }; + + CodeMirror.defineOption("hintOptions", null); +}); diff --git a/src/lib/codemirror/addon/merge/merge.css b/src/lib/codemirror/addon/merge/merge.css new file mode 100644 index 0000000..dadd7f5 --- /dev/null +++ b/src/lib/codemirror/addon/merge/merge.css @@ -0,0 +1,119 @@ +.CodeMirror-merge { + position: relative; + border: 1px solid #ddd; + white-space: pre; +} + +.CodeMirror-merge, .CodeMirror-merge .CodeMirror { + height: 350px; +} + +.CodeMirror-merge-2pane .CodeMirror-merge-pane { width: 47%; } +.CodeMirror-merge-2pane .CodeMirror-merge-gap { width: 6%; } +.CodeMirror-merge-3pane .CodeMirror-merge-pane { width: 31%; } +.CodeMirror-merge-3pane .CodeMirror-merge-gap { width: 3.5%; } + +.CodeMirror-merge-pane { + display: inline-block; + white-space: normal; + vertical-align: top; +} +.CodeMirror-merge-pane-rightmost { + position: absolute; + right: 0px; + z-index: 1; +} + +.CodeMirror-merge-gap { + z-index: 2; + display: inline-block; + height: 100%; + -moz-box-sizing: border-box; + box-sizing: border-box; + overflow: hidden; + border-left: 1px solid #ddd; + border-right: 1px solid #ddd; + position: relative; + background: #f8f8f8; +} + +.CodeMirror-merge-scrolllock-wrap { + position: absolute; + bottom: 0; left: 50%; +} +.CodeMirror-merge-scrolllock { + position: relative; + left: -50%; + cursor: pointer; + color: #555; + line-height: 1; +} +.CodeMirror-merge-scrolllock:after { + content: "\21db\00a0\00a0\21da"; +} +.CodeMirror-merge-scrolllock.CodeMirror-merge-scrolllock-enabled:after { + content: "\21db\21da"; +} + +.CodeMirror-merge-copybuttons-left, .CodeMirror-merge-copybuttons-right { + position: absolute; + left: 0; top: 0; + right: 0; bottom: 0; + line-height: 1; +} + +.CodeMirror-merge-copy { + position: absolute; + cursor: pointer; + color: #44c; + z-index: 3; +} + +.CodeMirror-merge-copy-reverse { + position: absolute; + cursor: pointer; + color: #44c; +} + +.CodeMirror-merge-copybuttons-left .CodeMirror-merge-copy { left: 2px; } +.CodeMirror-merge-copybuttons-right .CodeMirror-merge-copy { right: 2px; } + +.CodeMirror-merge-r-inserted, .CodeMirror-merge-l-inserted { + background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAACCAYAAACddGYaAAAAGUlEQVQI12MwuCXy3+CWyH8GBgYGJgYkAABZbAQ9ELXurwAAAABJRU5ErkJggg==); + background-position: bottom left; + background-repeat: repeat-x; +} + +.CodeMirror-merge-r-deleted, .CodeMirror-merge-l-deleted { + background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAACCAYAAACddGYaAAAAGUlEQVQI12M4Kyb2/6yY2H8GBgYGJgYkAABURgPz6Ks7wQAAAABJRU5ErkJggg==); + background-position: bottom left; + background-repeat: repeat-x; +} + +.CodeMirror-merge-r-chunk { background: #ffffe0; } +.CodeMirror-merge-r-chunk-start { border-top: 1px solid #ee8; } +.CodeMirror-merge-r-chunk-end { border-bottom: 1px solid #ee8; } +.CodeMirror-merge-r-connect { fill: #ffffe0; stroke: #ee8; stroke-width: 1px; } + +.CodeMirror-merge-l-chunk { background: #eef; } +.CodeMirror-merge-l-chunk-start { border-top: 1px solid #88e; } +.CodeMirror-merge-l-chunk-end { border-bottom: 1px solid #88e; } +.CodeMirror-merge-l-connect { fill: #eef; stroke: #88e; stroke-width: 1px; } + +.CodeMirror-merge-l-chunk.CodeMirror-merge-r-chunk { background: #dfd; } +.CodeMirror-merge-l-chunk-start.CodeMirror-merge-r-chunk-start { border-top: 1px solid #4e4; } +.CodeMirror-merge-l-chunk-end.CodeMirror-merge-r-chunk-end { border-bottom: 1px solid #4e4; } + +.CodeMirror-merge-collapsed-widget:before { + content: "(...)"; +} +.CodeMirror-merge-collapsed-widget { + cursor: pointer; + color: #88b; + background: #eef; + border: 1px solid #ddf; + font-size: 90%; + padding: 0 3px; + border-radius: 4px; +} +.CodeMirror-merge-collapsed-line .CodeMirror-gutter-elt { display: none; } diff --git a/src/lib/codemirror/addon/merge/merge.js b/src/lib/codemirror/addon/merge/merge.js new file mode 100644 index 0000000..827edb7 --- /dev/null +++ b/src/lib/codemirror/addon/merge/merge.js @@ -0,0 +1,1006 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: https://codemirror.net/LICENSE + +// declare global: diff_match_patch, DIFF_INSERT, DIFF_DELETE, DIFF_EQUAL + +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../../lib/codemirror")); // Note non-packaged dependency diff_match_patch + else if (typeof define == "function" && define.amd) // AMD + define(["../../lib/codemirror", "diff_match_patch"], mod); + else // Plain browser env + mod(CodeMirror); +})(function(CodeMirror) { + "use strict"; + var Pos = CodeMirror.Pos; + var svgNS = "http://www.w3.org/2000/svg"; + + function DiffView(mv, type) { + this.mv = mv; + this.type = type; + this.classes = type == "left" + ? {chunk: "CodeMirror-merge-l-chunk", + start: "CodeMirror-merge-l-chunk-start", + end: "CodeMirror-merge-l-chunk-end", + insert: "CodeMirror-merge-l-inserted", + del: "CodeMirror-merge-l-deleted", + connect: "CodeMirror-merge-l-connect"} + : {chunk: "CodeMirror-merge-r-chunk", + start: "CodeMirror-merge-r-chunk-start", + end: "CodeMirror-merge-r-chunk-end", + insert: "CodeMirror-merge-r-inserted", + del: "CodeMirror-merge-r-deleted", + connect: "CodeMirror-merge-r-connect"}; + } + + DiffView.prototype = { + constructor: DiffView, + init: function(pane, orig, options) { + this.edit = this.mv.edit; + ;(this.edit.state.diffViews || (this.edit.state.diffViews = [])).push(this); + this.orig = CodeMirror(pane, copyObj({value: orig, readOnly: !this.mv.options.allowEditingOriginals}, copyObj(options))); + if (this.mv.options.connect == "align") { + if (!this.edit.state.trackAlignable) this.edit.state.trackAlignable = new TrackAlignable(this.edit) + this.orig.state.trackAlignable = new TrackAlignable(this.orig) + } + this.lockButton.title = this.edit.phrase("Toggle locked scrolling"); + + this.orig.state.diffViews = [this]; + var classLocation = options.chunkClassLocation || "background"; + if (Object.prototype.toString.call(classLocation) != "[object Array]") classLocation = [classLocation] + this.classes.classLocation = classLocation + + this.diff = getDiff(asString(orig), asString(options.value), this.mv.options.ignoreWhitespace); + this.chunks = getChunks(this.diff); + this.diffOutOfDate = this.dealigned = false; + this.needsScrollSync = null + + this.showDifferences = options.showDifferences !== false; + }, + registerEvents: function(otherDv) { + this.forceUpdate = registerUpdate(this); + setScrollLock(this, true, false); + registerScroll(this, otherDv); + }, + setShowDifferences: function(val) { + val = val !== false; + if (val != this.showDifferences) { + this.showDifferences = val; + this.forceUpdate("full"); + } + } + }; + + function ensureDiff(dv) { + if (dv.diffOutOfDate) { + dv.diff = getDiff(dv.orig.getValue(), dv.edit.getValue(), dv.mv.options.ignoreWhitespace); + dv.chunks = getChunks(dv.diff); + dv.diffOutOfDate = false; + CodeMirror.signal(dv.edit, "updateDiff", dv.diff); + } + } + + var updating = false; + function registerUpdate(dv) { + var edit = {from: 0, to: 0, marked: []}; + var orig = {from: 0, to: 0, marked: []}; + var debounceChange, updatingFast = false; + function update(mode) { + updating = true; + updatingFast = false; + if (mode == "full") { + if (dv.svg) clear(dv.svg); + if (dv.copyButtons) clear(dv.copyButtons); + clearMarks(dv.edit, edit.marked, dv.classes); + clearMarks(dv.orig, orig.marked, dv.classes); + edit.from = edit.to = orig.from = orig.to = 0; + } + ensureDiff(dv); + if (dv.showDifferences) { + updateMarks(dv.edit, dv.diff, edit, DIFF_INSERT, dv.classes); + updateMarks(dv.orig, dv.diff, orig, DIFF_DELETE, dv.classes); + } + + if (dv.mv.options.connect == "align") + alignChunks(dv); + makeConnections(dv); + if (dv.needsScrollSync != null) syncScroll(dv, dv.needsScrollSync) + + updating = false; + } + function setDealign(fast) { + if (updating) return; + dv.dealigned = true; + set(fast); + } + function set(fast) { + if (updating || updatingFast) return; + clearTimeout(debounceChange); + if (fast === true) updatingFast = true; + debounceChange = setTimeout(update, fast === true ? 20 : 250); + } + function change(_cm, change) { + if (!dv.diffOutOfDate) { + dv.diffOutOfDate = true; + edit.from = edit.to = orig.from = orig.to = 0; + } + // Update faster when a line was added/removed + setDealign(change.text.length - 1 != change.to.line - change.from.line); + } + function swapDoc() { + dv.diffOutOfDate = true; + dv.dealigned = true; + update("full"); + } + dv.edit.on("change", change); + dv.orig.on("change", change); + dv.edit.on("swapDoc", swapDoc); + dv.orig.on("swapDoc", swapDoc); + if (dv.mv.options.connect == "align") { + CodeMirror.on(dv.edit.state.trackAlignable, "realign", setDealign) + CodeMirror.on(dv.orig.state.trackAlignable, "realign", setDealign) + } + dv.edit.on("viewportChange", function() { set(false); }); + dv.orig.on("viewportChange", function() { set(false); }); + update(); + return update; + } + + function registerScroll(dv, otherDv) { + dv.edit.on("scroll", function() { + syncScroll(dv, true) && makeConnections(dv); + }); + dv.orig.on("scroll", function() { + syncScroll(dv, false) && makeConnections(dv); + if (otherDv) syncScroll(otherDv, true) && makeConnections(otherDv); + }); + } + + function syncScroll(dv, toOrig) { + // Change handler will do a refresh after a timeout when diff is out of date + if (dv.diffOutOfDate) { + if (dv.lockScroll && dv.needsScrollSync == null) dv.needsScrollSync = toOrig + return false + } + dv.needsScrollSync = null + if (!dv.lockScroll) return true; + var editor, other, now = +new Date; + if (toOrig) { editor = dv.edit; other = dv.orig; } + else { editor = dv.orig; other = dv.edit; } + // Don't take action if the position of this editor was recently set + // (to prevent feedback loops) + if (editor.state.scrollSetBy == dv && (editor.state.scrollSetAt || 0) + 250 > now) return false; + + var sInfo = editor.getScrollInfo(); + if (dv.mv.options.connect == "align") { + targetPos = sInfo.top; + } else { + var halfScreen = .5 * sInfo.clientHeight, midY = sInfo.top + halfScreen; + var mid = editor.lineAtHeight(midY, "local"); + var around = chunkBoundariesAround(dv.chunks, mid, toOrig); + var off = getOffsets(editor, toOrig ? around.edit : around.orig); + var offOther = getOffsets(other, toOrig ? around.orig : around.edit); + var ratio = (midY - off.top) / (off.bot - off.top); + var targetPos = (offOther.top - halfScreen) + ratio * (offOther.bot - offOther.top); + + var botDist, mix; + // Some careful tweaking to make sure no space is left out of view + // when scrolling to top or bottom. + if (targetPos > sInfo.top && (mix = sInfo.top / halfScreen) < 1) { + targetPos = targetPos * mix + sInfo.top * (1 - mix); + } else if ((botDist = sInfo.height - sInfo.clientHeight - sInfo.top) < halfScreen) { + var otherInfo = other.getScrollInfo(); + var botDistOther = otherInfo.height - otherInfo.clientHeight - targetPos; + if (botDistOther > botDist && (mix = botDist / halfScreen) < 1) + targetPos = targetPos * mix + (otherInfo.height - otherInfo.clientHeight - botDist) * (1 - mix); + } + } + + other.scrollTo(sInfo.left, targetPos); + other.state.scrollSetAt = now; + other.state.scrollSetBy = dv; + return true; + } + + function getOffsets(editor, around) { + var bot = around.after; + if (bot == null) bot = editor.lastLine() + 1; + return {top: editor.heightAtLine(around.before || 0, "local"), + bot: editor.heightAtLine(bot, "local")}; + } + + function setScrollLock(dv, val, action) { + dv.lockScroll = val; + if (val && action != false) syncScroll(dv, DIFF_INSERT) && makeConnections(dv); + (val ? CodeMirror.addClass : CodeMirror.rmClass)(dv.lockButton, "CodeMirror-merge-scrolllock-enabled"); + } + + // Updating the marks for editor content + + function removeClass(editor, line, classes) { + var locs = classes.classLocation + for (var i = 0; i < locs.length; i++) { + editor.removeLineClass(line, locs[i], classes.chunk); + editor.removeLineClass(line, locs[i], classes.start); + editor.removeLineClass(line, locs[i], classes.end); + } + } + + function clearMarks(editor, arr, classes) { + for (var i = 0; i < arr.length; ++i) { + var mark = arr[i]; + if (mark instanceof CodeMirror.TextMarker) + mark.clear(); + else if (mark.parent) + removeClass(editor, mark, classes); + } + arr.length = 0; + } + + // FIXME maybe add a margin around viewport to prevent too many updates + function updateMarks(editor, diff, state, type, classes) { + var vp = editor.getViewport(); + editor.operation(function() { + if (state.from == state.to || vp.from - state.to > 20 || state.from - vp.to > 20) { + clearMarks(editor, state.marked, classes); + markChanges(editor, diff, type, state.marked, vp.from, vp.to, classes); + state.from = vp.from; state.to = vp.to; + } else { + if (vp.from < state.from) { + markChanges(editor, diff, type, state.marked, vp.from, state.from, classes); + state.from = vp.from; + } + if (vp.to > state.to) { + markChanges(editor, diff, type, state.marked, state.to, vp.to, classes); + state.to = vp.to; + } + } + }); + } + + function addClass(editor, lineNr, classes, main, start, end) { + var locs = classes.classLocation, line = editor.getLineHandle(lineNr); + for (var i = 0; i < locs.length; i++) { + if (main) editor.addLineClass(line, locs[i], classes.chunk); + if (start) editor.addLineClass(line, locs[i], classes.start); + if (end) editor.addLineClass(line, locs[i], classes.end); + } + return line; + } + + function markChanges(editor, diff, type, marks, from, to, classes) { + var pos = Pos(0, 0); + var top = Pos(from, 0), bot = editor.clipPos(Pos(to - 1)); + var cls = type == DIFF_DELETE ? classes.del : classes.insert; + function markChunk(start, end) { + var bfrom = Math.max(from, start), bto = Math.min(to, end); + for (var i = bfrom; i < bto; ++i) + marks.push(addClass(editor, i, classes, true, i == start, i == end - 1)); + // When the chunk is empty, make sure a horizontal line shows up + if (start == end && bfrom == end && bto == end) { + if (bfrom) + marks.push(addClass(editor, bfrom - 1, classes, false, false, true)); + else + marks.push(addClass(editor, bfrom, classes, false, true, false)); + } + } + + var chunkStart = 0, pending = false; + for (var i = 0; i < diff.length; ++i) { + var part = diff[i], tp = part[0], str = part[1]; + if (tp == DIFF_EQUAL) { + var cleanFrom = pos.line + (startOfLineClean(diff, i) ? 0 : 1); + moveOver(pos, str); + var cleanTo = pos.line + (endOfLineClean(diff, i) ? 1 : 0); + if (cleanTo > cleanFrom) { + if (pending) { markChunk(chunkStart, cleanFrom); pending = false } + chunkStart = cleanTo; + } + } else { + pending = true + if (tp == type) { + var end = moveOver(pos, str, true); + var a = posMax(top, pos), b = posMin(bot, end); + if (!posEq(a, b)) + marks.push(editor.markText(a, b, {className: cls})); + pos = end; + } + } + } + if (pending) markChunk(chunkStart, pos.line + 1); + } + + // Updating the gap between editor and original + + function makeConnections(dv) { + if (!dv.showDifferences) return; + + if (dv.svg) { + clear(dv.svg); + var w = dv.gap.offsetWidth; + attrs(dv.svg, "width", w, "height", dv.gap.offsetHeight); + } + if (dv.copyButtons) clear(dv.copyButtons); + + var vpEdit = dv.edit.getViewport(), vpOrig = dv.orig.getViewport(); + var outerTop = dv.mv.wrap.getBoundingClientRect().top + var sTopEdit = outerTop - dv.edit.getScrollerElement().getBoundingClientRect().top + dv.edit.getScrollInfo().top + var sTopOrig = outerTop - dv.orig.getScrollerElement().getBoundingClientRect().top + dv.orig.getScrollInfo().top; + for (var i = 0; i < dv.chunks.length; i++) { + var ch = dv.chunks[i]; + if (ch.editFrom <= vpEdit.to && ch.editTo >= vpEdit.from && + ch.origFrom <= vpOrig.to && ch.origTo >= vpOrig.from) + drawConnectorsForChunk(dv, ch, sTopOrig, sTopEdit, w); + } + } + + function getMatchingOrigLine(editLine, chunks) { + var editStart = 0, origStart = 0; + for (var i = 0; i < chunks.length; i++) { + var chunk = chunks[i]; + if (chunk.editTo > editLine && chunk.editFrom <= editLine) return null; + if (chunk.editFrom > editLine) break; + editStart = chunk.editTo; + origStart = chunk.origTo; + } + return origStart + (editLine - editStart); + } + + // Combines information about chunks and widgets/markers to return + // an array of lines, in a single editor, that probably need to be + // aligned with their counterparts in the editor next to it. + function alignableFor(cm, chunks, isOrig) { + var tracker = cm.state.trackAlignable + var start = cm.firstLine(), trackI = 0 + var result = [] + for (var i = 0;; i++) { + var chunk = chunks[i] + var chunkStart = !chunk ? 1e9 : isOrig ? chunk.origFrom : chunk.editFrom + for (; trackI < tracker.alignable.length; trackI += 2) { + var n = tracker.alignable[trackI] + 1 + if (n <= start) continue + if (n <= chunkStart) result.push(n) + else break + } + if (!chunk) break + result.push(start = isOrig ? chunk.origTo : chunk.editTo) + } + return result + } + + // Given information about alignable lines in two editors, fill in + // the result (an array of three-element arrays) to reflect the + // lines that need to be aligned with each other. + function mergeAlignable(result, origAlignable, chunks, setIndex) { + var rI = 0, origI = 0, chunkI = 0, diff = 0 + outer: for (;; rI++) { + var nextR = result[rI], nextO = origAlignable[origI] + if (!nextR && nextO == null) break + + var rLine = nextR ? nextR[0] : 1e9, oLine = nextO == null ? 1e9 : nextO + while (chunkI < chunks.length) { + var chunk = chunks[chunkI] + if (chunk.origFrom <= oLine && chunk.origTo > oLine) { + origI++ + rI-- + continue outer; + } + if (chunk.editTo > rLine) { + if (chunk.editFrom <= rLine) continue outer; + break + } + diff += (chunk.origTo - chunk.origFrom) - (chunk.editTo - chunk.editFrom) + chunkI++ + } + if (rLine == oLine - diff) { + nextR[setIndex] = oLine + origI++ + } else if (rLine < oLine - diff) { + nextR[setIndex] = rLine + diff + } else { + var record = [oLine - diff, null, null] + record[setIndex] = oLine + result.splice(rI, 0, record) + origI++ + } + } + } + + function findAlignedLines(dv, other) { + var alignable = alignableFor(dv.edit, dv.chunks, false), result = [] + if (other) for (var i = 0, j = 0; i < other.chunks.length; i++) { + var n = other.chunks[i].editTo + while (j < alignable.length && alignable[j] < n) j++ + if (j == alignable.length || alignable[j] != n) alignable.splice(j++, 0, n) + } + for (var i = 0; i < alignable.length; i++) + result.push([alignable[i], null, null]) + + mergeAlignable(result, alignableFor(dv.orig, dv.chunks, true), dv.chunks, 1) + if (other) + mergeAlignable(result, alignableFor(other.orig, other.chunks, true), other.chunks, 2) + + return result + } + + function alignChunks(dv, force) { + if (!dv.dealigned && !force) return; + if (!dv.orig.curOp) return dv.orig.operation(function() { + alignChunks(dv, force); + }); + + dv.dealigned = false; + var other = dv.mv.left == dv ? dv.mv.right : dv.mv.left; + if (other) { + ensureDiff(other); + other.dealigned = false; + } + var linesToAlign = findAlignedLines(dv, other); + + // Clear old aligners + var aligners = dv.mv.aligners; + for (var i = 0; i < aligners.length; i++) + aligners[i].clear(); + aligners.length = 0; + + var cm = [dv.edit, dv.orig], scroll = [], offset = [] + if (other) cm.push(other.orig); + for (var i = 0; i < cm.length; i++) { + scroll.push(cm[i].getScrollInfo().top); + offset.push(-cm[i].getScrollerElement().getBoundingClientRect().top) + } + + if (offset[0] != offset[1] || cm.length == 3 && offset[1] != offset[2]) + alignLines(cm, offset, [0, 0, 0], aligners) + for (var ln = 0; ln < linesToAlign.length; ln++) + alignLines(cm, offset, linesToAlign[ln], aligners); + + for (var i = 0; i < cm.length; i++) + cm[i].scrollTo(null, scroll[i]); + } + + function alignLines(cm, cmOffset, lines, aligners) { + var maxOffset = -1e8, offset = []; + for (var i = 0; i < cm.length; i++) if (lines[i] != null) { + var off = cm[i].heightAtLine(lines[i], "local") - cmOffset[i]; + offset[i] = off; + maxOffset = Math.max(maxOffset, off); + } + for (var i = 0; i < cm.length; i++) if (lines[i] != null) { + var diff = maxOffset - offset[i]; + if (diff > 1) + aligners.push(padAbove(cm[i], lines[i], diff)); + } + } + + function padAbove(cm, line, size) { + var above = true; + if (line > cm.lastLine()) { + line--; + above = false; + } + var elt = document.createElement("div"); + elt.className = "CodeMirror-merge-spacer"; + elt.style.height = size + "px"; elt.style.minWidth = "1px"; + return cm.addLineWidget(line, elt, {height: size, above: above, mergeSpacer: true, handleMouseEvents: true}); + } + + function drawConnectorsForChunk(dv, chunk, sTopOrig, sTopEdit, w) { + var flip = dv.type == "left"; + var top = dv.orig.heightAtLine(chunk.origFrom, "local", true) - sTopOrig; + if (dv.svg) { + var topLpx = top; + var topRpx = dv.edit.heightAtLine(chunk.editFrom, "local", true) - sTopEdit; + if (flip) { var tmp = topLpx; topLpx = topRpx; topRpx = tmp; } + var botLpx = dv.orig.heightAtLine(chunk.origTo, "local", true) - sTopOrig; + var botRpx = dv.edit.heightAtLine(chunk.editTo, "local", true) - sTopEdit; + if (flip) { var tmp = botLpx; botLpx = botRpx; botRpx = tmp; } + var curveTop = " C " + w/2 + " " + topRpx + " " + w/2 + " " + topLpx + " " + (w + 2) + " " + topLpx; + var curveBot = " C " + w/2 + " " + botLpx + " " + w/2 + " " + botRpx + " -1 " + botRpx; + attrs(dv.svg.appendChild(document.createElementNS(svgNS, "path")), + "d", "M -1 " + topRpx + curveTop + " L " + (w + 2) + " " + botLpx + curveBot + " z", + "class", dv.classes.connect); + } + if (dv.copyButtons) { + var copy = dv.copyButtons.appendChild(elt("div", dv.type == "left" ? "\u21dd" : "\u21dc", + "CodeMirror-merge-copy")); + var editOriginals = dv.mv.options.allowEditingOriginals; + copy.title = dv.edit.phrase(editOriginals ? "Push to left" : "Revert chunk"); + copy.chunk = chunk; + copy.style.top = (chunk.origTo > chunk.origFrom ? top : dv.edit.heightAtLine(chunk.editFrom, "local") - sTopEdit) + "px"; + + if (editOriginals) { + var topReverse = dv.edit.heightAtLine(chunk.editFrom, "local") - sTopEdit; + var copyReverse = dv.copyButtons.appendChild(elt("div", dv.type == "right" ? "\u21dd" : "\u21dc", + "CodeMirror-merge-copy-reverse")); + copyReverse.title = "Push to right"; + copyReverse.chunk = {editFrom: chunk.origFrom, editTo: chunk.origTo, + origFrom: chunk.editFrom, origTo: chunk.editTo}; + copyReverse.style.top = topReverse + "px"; + dv.type == "right" ? copyReverse.style.left = "2px" : copyReverse.style.right = "2px"; + } + } + } + + function copyChunk(dv, to, from, chunk) { + if (dv.diffOutOfDate) return; + var origStart = chunk.origTo > from.lastLine() ? Pos(chunk.origFrom - 1) : Pos(chunk.origFrom, 0) + var origEnd = Pos(chunk.origTo, 0) + var editStart = chunk.editTo > to.lastLine() ? Pos(chunk.editFrom - 1) : Pos(chunk.editFrom, 0) + var editEnd = Pos(chunk.editTo, 0) + var handler = dv.mv.options.revertChunk + if (handler) + handler(dv.mv, from, origStart, origEnd, to, editStart, editEnd) + else + to.replaceRange(from.getRange(origStart, origEnd), editStart, editEnd) + } + + // Merge view, containing 0, 1, or 2 diff views. + + var MergeView = CodeMirror.MergeView = function(node, options) { + if (!(this instanceof MergeView)) return new MergeView(node, options); + + this.options = options; + var origLeft = options.origLeft, origRight = options.origRight == null ? options.orig : options.origRight; + + var hasLeft = origLeft != null, hasRight = origRight != null; + var panes = 1 + (hasLeft ? 1 : 0) + (hasRight ? 1 : 0); + var wrap = [], left = this.left = null, right = this.right = null; + var self = this; + + if (hasLeft) { + left = this.left = new DiffView(this, "left"); + var leftPane = elt("div", null, "CodeMirror-merge-pane CodeMirror-merge-left"); + wrap.push(leftPane); + wrap.push(buildGap(left)); + } + + var editPane = elt("div", null, "CodeMirror-merge-pane CodeMirror-merge-editor"); + wrap.push(editPane); + + if (hasRight) { + right = this.right = new DiffView(this, "right"); + wrap.push(buildGap(right)); + var rightPane = elt("div", null, "CodeMirror-merge-pane CodeMirror-merge-right"); + wrap.push(rightPane); + } + + (hasRight ? rightPane : editPane).className += " CodeMirror-merge-pane-rightmost"; + + wrap.push(elt("div", null, null, "height: 0; clear: both;")); + + var wrapElt = this.wrap = node.appendChild(elt("div", wrap, "CodeMirror-merge CodeMirror-merge-" + panes + "pane")); + this.edit = CodeMirror(editPane, copyObj(options)); + + if (left) left.init(leftPane, origLeft, options); + if (right) right.init(rightPane, origRight, options); + if (options.collapseIdentical) + this.editor().operation(function() { + collapseIdenticalStretches(self, options.collapseIdentical); + }); + if (options.connect == "align") { + this.aligners = []; + alignChunks(this.left || this.right, true); + } + if (left) left.registerEvents(right) + if (right) right.registerEvents(left) + + + var onResize = function() { + if (left) makeConnections(left); + if (right) makeConnections(right); + }; + CodeMirror.on(window, "resize", onResize); + var resizeInterval = setInterval(function() { + for (var p = wrapElt.parentNode; p && p != document.body; p = p.parentNode) {} + if (!p) { clearInterval(resizeInterval); CodeMirror.off(window, "resize", onResize); } + }, 5000); + }; + + function buildGap(dv) { + var lock = dv.lockButton = elt("div", null, "CodeMirror-merge-scrolllock"); + var lockWrap = elt("div", [lock], "CodeMirror-merge-scrolllock-wrap"); + CodeMirror.on(lock, "click", function() { setScrollLock(dv, !dv.lockScroll); }); + var gapElts = [lockWrap]; + if (dv.mv.options.revertButtons !== false) { + dv.copyButtons = elt("div", null, "CodeMirror-merge-copybuttons-" + dv.type); + CodeMirror.on(dv.copyButtons, "click", function(e) { + var node = e.target || e.srcElement; + if (!node.chunk) return; + if (node.className == "CodeMirror-merge-copy-reverse") { + copyChunk(dv, dv.orig, dv.edit, node.chunk); + return; + } + copyChunk(dv, dv.edit, dv.orig, node.chunk); + }); + gapElts.unshift(dv.copyButtons); + } + if (dv.mv.options.connect != "align") { + var svg = document.createElementNS && document.createElementNS(svgNS, "svg"); + if (svg && !svg.createSVGRect) svg = null; + dv.svg = svg; + if (svg) gapElts.push(svg); + } + + return dv.gap = elt("div", gapElts, "CodeMirror-merge-gap"); + } + + MergeView.prototype = { + constructor: MergeView, + editor: function() { return this.edit; }, + rightOriginal: function() { return this.right && this.right.orig; }, + leftOriginal: function() { return this.left && this.left.orig; }, + setShowDifferences: function(val) { + if (this.right) this.right.setShowDifferences(val); + if (this.left) this.left.setShowDifferences(val); + }, + rightChunks: function() { + if (this.right) { ensureDiff(this.right); return this.right.chunks; } + }, + leftChunks: function() { + if (this.left) { ensureDiff(this.left); return this.left.chunks; } + } + }; + + function asString(obj) { + if (typeof obj == "string") return obj; + else return obj.getValue(); + } + + // Operations on diffs + var dmp; + function getDiff(a, b, ignoreWhitespace) { + if (!dmp) dmp = new diff_match_patch(); + + var diff = dmp.diff_main(a, b); + // The library sometimes leaves in empty parts, which confuse the algorithm + for (var i = 0; i < diff.length; ++i) { + var part = diff[i]; + if (ignoreWhitespace ? !/[^ \t]/.test(part[1]) : !part[1]) { + diff.splice(i--, 1); + } else if (i && diff[i - 1][0] == part[0]) { + diff.splice(i--, 1); + diff[i][1] += part[1]; + } + } + return diff; + } + + function getChunks(diff) { + var chunks = []; + if (!diff.length) return chunks; + var startEdit = 0, startOrig = 0; + var edit = Pos(0, 0), orig = Pos(0, 0); + for (var i = 0; i < diff.length; ++i) { + var part = diff[i], tp = part[0]; + if (tp == DIFF_EQUAL) { + var startOff = !startOfLineClean(diff, i) || edit.line < startEdit || orig.line < startOrig ? 1 : 0; + var cleanFromEdit = edit.line + startOff, cleanFromOrig = orig.line + startOff; + moveOver(edit, part[1], null, orig); + var endOff = endOfLineClean(diff, i) ? 1 : 0; + var cleanToEdit = edit.line + endOff, cleanToOrig = orig.line + endOff; + if (cleanToEdit > cleanFromEdit) { + if (i) chunks.push({origFrom: startOrig, origTo: cleanFromOrig, + editFrom: startEdit, editTo: cleanFromEdit}); + startEdit = cleanToEdit; startOrig = cleanToOrig; + } + } else { + moveOver(tp == DIFF_INSERT ? edit : orig, part[1]); + } + } + if (startEdit <= edit.line || startOrig <= orig.line) + chunks.push({origFrom: startOrig, origTo: orig.line + 1, + editFrom: startEdit, editTo: edit.line + 1}); + return chunks; + } + + function endOfLineClean(diff, i) { + if (i == diff.length - 1) return true; + var next = diff[i + 1][1]; + if ((next.length == 1 && i < diff.length - 2) || next.charCodeAt(0) != 10) return false; + if (i == diff.length - 2) return true; + next = diff[i + 2][1]; + return (next.length > 1 || i == diff.length - 3) && next.charCodeAt(0) == 10; + } + + function startOfLineClean(diff, i) { + if (i == 0) return true; + var last = diff[i - 1][1]; + if (last.charCodeAt(last.length - 1) != 10) return false; + if (i == 1) return true; + last = diff[i - 2][1]; + return last.charCodeAt(last.length - 1) == 10; + } + + function chunkBoundariesAround(chunks, n, nInEdit) { + var beforeE, afterE, beforeO, afterO; + for (var i = 0; i < chunks.length; i++) { + var chunk = chunks[i]; + var fromLocal = nInEdit ? chunk.editFrom : chunk.origFrom; + var toLocal = nInEdit ? chunk.editTo : chunk.origTo; + if (afterE == null) { + if (fromLocal > n) { afterE = chunk.editFrom; afterO = chunk.origFrom; } + else if (toLocal > n) { afterE = chunk.editTo; afterO = chunk.origTo; } + } + if (toLocal <= n) { beforeE = chunk.editTo; beforeO = chunk.origTo; } + else if (fromLocal <= n) { beforeE = chunk.editFrom; beforeO = chunk.origFrom; } + } + return {edit: {before: beforeE, after: afterE}, orig: {before: beforeO, after: afterO}}; + } + + function collapseSingle(cm, from, to) { + cm.addLineClass(from, "wrap", "CodeMirror-merge-collapsed-line"); + var widget = document.createElement("span"); + widget.className = "CodeMirror-merge-collapsed-widget"; + widget.title = cm.phrase("Identical text collapsed. Click to expand."); + var mark = cm.markText(Pos(from, 0), Pos(to - 1), { + inclusiveLeft: true, + inclusiveRight: true, + replacedWith: widget, + clearOnEnter: true + }); + function clear() { + mark.clear(); + cm.removeLineClass(from, "wrap", "CodeMirror-merge-collapsed-line"); + } + if (mark.explicitlyCleared) clear(); + CodeMirror.on(widget, "click", clear); + mark.on("clear", clear); + CodeMirror.on(widget, "click", clear); + return {mark: mark, clear: clear}; + } + + function collapseStretch(size, editors) { + var marks = []; + function clear() { + for (var i = 0; i < marks.length; i++) marks[i].clear(); + } + for (var i = 0; i < editors.length; i++) { + var editor = editors[i]; + var mark = collapseSingle(editor.cm, editor.line, editor.line + size); + marks.push(mark); + mark.mark.on("clear", clear); + } + return marks[0].mark; + } + + function unclearNearChunks(dv, margin, off, clear) { + for (var i = 0; i < dv.chunks.length; i++) { + var chunk = dv.chunks[i]; + for (var l = chunk.editFrom - margin; l < chunk.editTo + margin; l++) { + var pos = l + off; + if (pos >= 0 && pos < clear.length) clear[pos] = false; + } + } + } + + function collapseIdenticalStretches(mv, margin) { + if (typeof margin != "number") margin = 2; + var clear = [], edit = mv.editor(), off = edit.firstLine(); + for (var l = off, e = edit.lastLine(); l <= e; l++) clear.push(true); + if (mv.left) unclearNearChunks(mv.left, margin, off, clear); + if (mv.right) unclearNearChunks(mv.right, margin, off, clear); + + for (var i = 0; i < clear.length; i++) { + if (clear[i]) { + var line = i + off; + for (var size = 1; i < clear.length - 1 && clear[i + 1]; i++, size++) {} + if (size > margin) { + var editors = [{line: line, cm: edit}]; + if (mv.left) editors.push({line: getMatchingOrigLine(line, mv.left.chunks), cm: mv.left.orig}); + if (mv.right) editors.push({line: getMatchingOrigLine(line, mv.right.chunks), cm: mv.right.orig}); + var mark = collapseStretch(size, editors); + if (mv.options.onCollapse) mv.options.onCollapse(mv, line, size, mark); + } + } + } + } + + // General utilities + + function elt(tag, content, className, style) { + var e = document.createElement(tag); + if (className) e.className = className; + if (style) e.style.cssText = style; + if (typeof content == "string") e.appendChild(document.createTextNode(content)); + else if (content) for (var i = 0; i < content.length; ++i) e.appendChild(content[i]); + return e; + } + + function clear(node) { + for (var count = node.childNodes.length; count > 0; --count) + node.removeChild(node.firstChild); + } + + function attrs(elt) { + for (var i = 1; i < arguments.length; i += 2) + elt.setAttribute(arguments[i], arguments[i+1]); + } + + function copyObj(obj, target) { + if (!target) target = {}; + for (var prop in obj) if (obj.hasOwnProperty(prop)) target[prop] = obj[prop]; + return target; + } + + function moveOver(pos, str, copy, other) { + var out = copy ? Pos(pos.line, pos.ch) : pos, at = 0; + for (;;) { + var nl = str.indexOf("\n", at); + if (nl == -1) break; + ++out.line; + if (other) ++other.line; + at = nl + 1; + } + out.ch = (at ? 0 : out.ch) + (str.length - at); + if (other) other.ch = (at ? 0 : other.ch) + (str.length - at); + return out; + } + + // Tracks collapsed markers and line widgets, in order to be able to + // accurately align the content of two editors. + + var F_WIDGET = 1, F_WIDGET_BELOW = 2, F_MARKER = 4 + + function TrackAlignable(cm) { + this.cm = cm + this.alignable = [] + this.height = cm.doc.height + var self = this + cm.on("markerAdded", function(_, marker) { + if (!marker.collapsed) return + var found = marker.find(1) + if (found != null) self.set(found.line, F_MARKER) + }) + cm.on("markerCleared", function(_, marker, _min, max) { + if (max != null && marker.collapsed) + self.check(max, F_MARKER, self.hasMarker) + }) + cm.on("markerChanged", this.signal.bind(this)) + cm.on("lineWidgetAdded", function(_, widget, lineNo) { + if (widget.mergeSpacer) return + if (widget.above) self.set(lineNo - 1, F_WIDGET_BELOW) + else self.set(lineNo, F_WIDGET) + }) + cm.on("lineWidgetCleared", function(_, widget, lineNo) { + if (widget.mergeSpacer) return + if (widget.above) self.check(lineNo - 1, F_WIDGET_BELOW, self.hasWidgetBelow) + else self.check(lineNo, F_WIDGET, self.hasWidget) + }) + cm.on("lineWidgetChanged", this.signal.bind(this)) + cm.on("change", function(_, change) { + var start = change.from.line, nBefore = change.to.line - change.from.line + var nAfter = change.text.length - 1, end = start + nAfter + if (nBefore || nAfter) self.map(start, nBefore, nAfter) + self.check(end, F_MARKER, self.hasMarker) + if (nBefore || nAfter) self.check(change.from.line, F_MARKER, self.hasMarker) + }) + cm.on("viewportChange", function() { + if (self.cm.doc.height != self.height) self.signal() + }) + } + + TrackAlignable.prototype = { + signal: function() { + CodeMirror.signal(this, "realign") + this.height = this.cm.doc.height + }, + + set: function(n, flags) { + var pos = -1 + for (; pos < this.alignable.length; pos += 2) { + var diff = this.alignable[pos] - n + if (diff == 0) { + if ((this.alignable[pos + 1] & flags) == flags) return + this.alignable[pos + 1] |= flags + this.signal() + return + } + if (diff > 0) break + } + this.signal() + this.alignable.splice(pos, 0, n, flags) + }, + + find: function(n) { + for (var i = 0; i < this.alignable.length; i += 2) + if (this.alignable[i] == n) return i + return -1 + }, + + check: function(n, flag, pred) { + var found = this.find(n) + if (found == -1 || !(this.alignable[found + 1] & flag)) return + if (!pred.call(this, n)) { + this.signal() + var flags = this.alignable[found + 1] & ~flag + if (flags) this.alignable[found + 1] = flags + else this.alignable.splice(found, 2) + } + }, + + hasMarker: function(n) { + var handle = this.cm.getLineHandle(n) + if (handle.markedSpans) for (var i = 0; i < handle.markedSpans.length; i++) + if (handle.markedSpans[i].marker.collapsed && handle.markedSpans[i].to != null) + return true + return false + }, + + hasWidget: function(n) { + var handle = this.cm.getLineHandle(n) + if (handle.widgets) for (var i = 0; i < handle.widgets.length; i++) + if (!handle.widgets[i].above && !handle.widgets[i].mergeSpacer) return true + return false + }, + + hasWidgetBelow: function(n) { + if (n == this.cm.lastLine()) return false + var handle = this.cm.getLineHandle(n + 1) + if (handle.widgets) for (var i = 0; i < handle.widgets.length; i++) + if (handle.widgets[i].above && !handle.widgets[i].mergeSpacer) return true + return false + }, + + map: function(from, nBefore, nAfter) { + var diff = nAfter - nBefore, to = from + nBefore, widgetFrom = -1, widgetTo = -1 + for (var i = 0; i < this.alignable.length; i += 2) { + var n = this.alignable[i] + if (n == from && (this.alignable[i + 1] & F_WIDGET_BELOW)) widgetFrom = i + if (n == to && (this.alignable[i + 1] & F_WIDGET_BELOW)) widgetTo = i + if (n <= from) continue + else if (n < to) this.alignable.splice(i--, 2) + else this.alignable[i] += diff + } + if (widgetFrom > -1) { + var flags = this.alignable[widgetFrom + 1] + if (flags == F_WIDGET_BELOW) this.alignable.splice(widgetFrom, 2) + else this.alignable[widgetFrom + 1] = flags & ~F_WIDGET_BELOW + } + if (widgetTo > -1 && nAfter) + this.set(from + nAfter, F_WIDGET_BELOW) + } + } + + function posMin(a, b) { return (a.line - b.line || a.ch - b.ch) < 0 ? a : b; } + function posMax(a, b) { return (a.line - b.line || a.ch - b.ch) > 0 ? a : b; } + function posEq(a, b) { return a.line == b.line && a.ch == b.ch; } + + function findPrevDiff(chunks, start, isOrig) { + for (var i = chunks.length - 1; i >= 0; i--) { + var chunk = chunks[i]; + var to = (isOrig ? chunk.origTo : chunk.editTo) - 1; + if (to < start) return to; + } + } + + function findNextDiff(chunks, start, isOrig) { + for (var i = 0; i < chunks.length; i++) { + var chunk = chunks[i]; + var from = (isOrig ? chunk.origFrom : chunk.editFrom); + if (from > start) return from; + } + } + + function goNearbyDiff(cm, dir) { + var found = null, views = cm.state.diffViews, line = cm.getCursor().line; + if (views) for (var i = 0; i < views.length; i++) { + var dv = views[i], isOrig = cm == dv.orig; + ensureDiff(dv); + var pos = dir < 0 ? findPrevDiff(dv.chunks, line, isOrig) : findNextDiff(dv.chunks, line, isOrig); + if (pos != null && (found == null || (dir < 0 ? pos > found : pos < found))) + found = pos; + } + if (found != null) + cm.setCursor(found, 0); + else + return CodeMirror.Pass; + } + + CodeMirror.commands.goNextDiff = function(cm) { + return goNearbyDiff(cm, 1); + }; + CodeMirror.commands.goPrevDiff = function(cm) { + return goNearbyDiff(cm, -1); + }; +}); diff --git a/src/lib/codemirror/addon/scroll/annotatescrollbar.js b/src/lib/codemirror/addon/scroll/annotatescrollbar.js new file mode 100644 index 0000000..c12e44c --- /dev/null +++ b/src/lib/codemirror/addon/scroll/annotatescrollbar.js @@ -0,0 +1,128 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: https://codemirror.net/LICENSE + +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../../lib/codemirror")); + else if (typeof define == "function" && define.amd) // AMD + define(["../../lib/codemirror"], mod); + else // Plain browser env + mod(CodeMirror); +})(function(CodeMirror) { + "use strict"; + + CodeMirror.defineExtension("annotateScrollbar", function(options) { + if (typeof options == "string") options = {className: options}; + return new Annotation(this, options); + }); + + CodeMirror.defineOption("scrollButtonHeight", 0); + + function Annotation(cm, options) { + this.cm = cm; + this.options = options; + this.buttonHeight = options.scrollButtonHeight || cm.getOption("scrollButtonHeight"); + this.annotations = []; + this.doRedraw = this.doUpdate = null; + this.div = cm.getWrapperElement().appendChild(document.createElement("div")); + this.div.style.cssText = "position: absolute; right: 0; top: 0; z-index: 7; pointer-events: none"; + this.computeScale(); + + function scheduleRedraw(delay) { + clearTimeout(self.doRedraw); + self.doRedraw = setTimeout(function() { self.redraw(); }, delay); + } + + var self = this; + cm.on("refresh", this.resizeHandler = function() { + clearTimeout(self.doUpdate); + self.doUpdate = setTimeout(function() { + if (self.computeScale()) scheduleRedraw(20); + }, 100); + }); + cm.on("markerAdded", this.resizeHandler); + cm.on("markerCleared", this.resizeHandler); + if (options.listenForChanges !== false) + cm.on("changes", this.changeHandler = function() { + scheduleRedraw(250); + }); + } + + Annotation.prototype.computeScale = function() { + var cm = this.cm; + var hScale = (cm.getWrapperElement().clientHeight - cm.display.barHeight - this.buttonHeight * 2) / + cm.getScrollerElement().scrollHeight + if (hScale != this.hScale) { + this.hScale = hScale; + return true; + } + }; + + Annotation.prototype.update = function(annotations) { + this.annotations = annotations; + this.redraw(); + }; + + Annotation.prototype.redraw = function(compute) { + if (compute !== false) this.computeScale(); + var cm = this.cm, hScale = this.hScale; + + var frag = document.createDocumentFragment(), anns = this.annotations; + + var wrapping = cm.getOption("lineWrapping"); + var singleLineH = wrapping && cm.defaultTextHeight() * 1.5; + var curLine = null, curLineObj = null; + + function getY(pos, top) { + if (curLine != pos.line) { + curLine = pos.line + curLineObj = cm.getLineHandle(pos.line) + var visual = cm.getLineHandleVisualStart(curLineObj) + if (visual != curLineObj) { + curLine = cm.getLineNumber(visual) + curLineObj = visual + } + } + if ((curLineObj.widgets && curLineObj.widgets.length) || + (wrapping && curLineObj.height > singleLineH)) + return cm.charCoords(pos, "local")[top ? "top" : "bottom"]; + var topY = cm.heightAtLine(curLineObj, "local"); + return topY + (top ? 0 : curLineObj.height); + } + + var lastLine = cm.lastLine() + if (cm.display.barWidth) for (var i = 0, nextTop; i < anns.length; i++) { + var ann = anns[i]; + if (ann.to.line > lastLine) continue; + var top = nextTop || getY(ann.from, true) * hScale; + var bottom = getY(ann.to, false) * hScale; + while (i < anns.length - 1) { + if (anns[i + 1].to.line > lastLine) break; + nextTop = getY(anns[i + 1].from, true) * hScale; + if (nextTop > bottom + .9) break; + ann = anns[++i]; + bottom = getY(ann.to, false) * hScale; + } + if (bottom == top) continue; + var height = Math.max(bottom - top, 3); + + var elt = frag.appendChild(document.createElement("div")); + elt.style.cssText = "position: absolute; right: 0px; width: " + Math.max(cm.display.barWidth - 1, 2) + "px; top: " + + (top + this.buttonHeight) + "px; height: " + height + "px"; + elt.className = this.options.className; + if (ann.id) { + elt.setAttribute("annotation-id", ann.id); + } + } + this.div.textContent = ""; + this.div.appendChild(frag); + }; + + Annotation.prototype.clear = function() { + this.cm.off("refresh", this.resizeHandler); + this.cm.off("markerAdded", this.resizeHandler); + this.cm.off("markerCleared", this.resizeHandler); + if (this.changeHandler) this.cm.off("changes", this.changeHandler); + this.div.parentNode.removeChild(this.div); + }; +}); diff --git a/src/lib/codemirror/addon/search/matchesonscrollbar.css b/src/lib/codemirror/addon/search/matchesonscrollbar.css new file mode 100644 index 0000000..77932cc --- /dev/null +++ b/src/lib/codemirror/addon/search/matchesonscrollbar.css @@ -0,0 +1,8 @@ +.CodeMirror-search-match { + background: gold; + border-top: 1px solid orange; + border-bottom: 1px solid orange; + -moz-box-sizing: border-box; + box-sizing: border-box; + opacity: .5; +} diff --git a/src/lib/codemirror/addon/search/searchcursor.js b/src/lib/codemirror/addon/search/searchcursor.js new file mode 100644 index 0000000..d586957 --- /dev/null +++ b/src/lib/codemirror/addon/search/searchcursor.js @@ -0,0 +1,296 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: https://codemirror.net/LICENSE + +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../../lib/codemirror")) + else if (typeof define == "function" && define.amd) // AMD + define(["../../lib/codemirror"], mod) + else // Plain browser env + mod(CodeMirror) +})(function(CodeMirror) { + "use strict" + var Pos = CodeMirror.Pos + + function regexpFlags(regexp) { + var flags = regexp.flags + return flags != null ? flags : (regexp.ignoreCase ? "i" : "") + + (regexp.global ? "g" : "") + + (regexp.multiline ? "m" : "") + } + + function ensureFlags(regexp, flags) { + var current = regexpFlags(regexp), target = current + for (var i = 0; i < flags.length; i++) if (target.indexOf(flags.charAt(i)) == -1) + target += flags.charAt(i) + return current == target ? regexp : new RegExp(regexp.source, target) + } + + function maybeMultiline(regexp) { + return /\\s|\\n|\n|\\W|\\D|\[\^/.test(regexp.source) + } + + function searchRegexpForward(doc, regexp, start) { + regexp = ensureFlags(regexp, "g") + for (var line = start.line, ch = start.ch, last = doc.lastLine(); line <= last; line++, ch = 0) { + regexp.lastIndex = ch + var string = doc.getLine(line), match = regexp.exec(string) + if (match) + return {from: Pos(line, match.index), + to: Pos(line, match.index + match[0].length), + match: match} + } + } + + function searchRegexpForwardMultiline(doc, regexp, start) { + if (!maybeMultiline(regexp)) return searchRegexpForward(doc, regexp, start) + + regexp = ensureFlags(regexp, "gm") + var string, chunk = 1 + for (var line = start.line, last = doc.lastLine(); line <= last;) { + // This grows the search buffer in exponentially-sized chunks + // between matches, so that nearby matches are fast and don't + // require concatenating the whole document (in case we're + // searching for something that has tons of matches), but at the + // same time, the amount of retries is limited. + for (var i = 0; i < chunk; i++) { + if (line > last) break + var curLine = doc.getLine(line++) + string = string == null ? curLine : string + "\n" + curLine + } + chunk = chunk * 2 + regexp.lastIndex = start.ch + var match = regexp.exec(string) + if (match) { + var before = string.slice(0, match.index).split("\n"), inside = match[0].split("\n") + var startLine = start.line + before.length - 1, startCh = before[before.length - 1].length + return {from: Pos(startLine, startCh), + to: Pos(startLine + inside.length - 1, + inside.length == 1 ? startCh + inside[0].length : inside[inside.length - 1].length), + match: match} + } + } + } + + function lastMatchIn(string, regexp, endMargin) { + var match, from = 0 + while (from <= string.length) { + regexp.lastIndex = from + var newMatch = regexp.exec(string) + if (!newMatch) break + var end = newMatch.index + newMatch[0].length + if (end > string.length - endMargin) break + if (!match || end > match.index + match[0].length) + match = newMatch + from = newMatch.index + 1 + } + return match + } + + function searchRegexpBackward(doc, regexp, start) { + regexp = ensureFlags(regexp, "g") + for (var line = start.line, ch = start.ch, first = doc.firstLine(); line >= first; line--, ch = -1) { + var string = doc.getLine(line) + var match = lastMatchIn(string, regexp, ch < 0 ? 0 : string.length - ch) + if (match) + return {from: Pos(line, match.index), + to: Pos(line, match.index + match[0].length), + match: match} + } + } + + function searchRegexpBackwardMultiline(doc, regexp, start) { + if (!maybeMultiline(regexp)) return searchRegexpBackward(doc, regexp, start) + regexp = ensureFlags(regexp, "gm") + var string, chunkSize = 1, endMargin = doc.getLine(start.line).length - start.ch + for (var line = start.line, first = doc.firstLine(); line >= first;) { + for (var i = 0; i < chunkSize && line >= first; i++) { + var curLine = doc.getLine(line--) + string = string == null ? curLine : curLine + "\n" + string + } + chunkSize *= 2 + + var match = lastMatchIn(string, regexp, endMargin) + if (match) { + var before = string.slice(0, match.index).split("\n"), inside = match[0].split("\n") + var startLine = line + before.length, startCh = before[before.length - 1].length + return {from: Pos(startLine, startCh), + to: Pos(startLine + inside.length - 1, + inside.length == 1 ? startCh + inside[0].length : inside[inside.length - 1].length), + match: match} + } + } + } + + var doFold, noFold + if (String.prototype.normalize) { + doFold = function(str) { return str.normalize("NFD").toLowerCase() } + noFold = function(str) { return str.normalize("NFD") } + } else { + doFold = function(str) { return str.toLowerCase() } + noFold = function(str) { return str } + } + + // Maps a position in a case-folded line back to a position in the original line + // (compensating for codepoints increasing in number during folding) + function adjustPos(orig, folded, pos, foldFunc) { + if (orig.length == folded.length) return pos + for (var min = 0, max = pos + Math.max(0, orig.length - folded.length);;) { + if (min == max) return min + var mid = (min + max) >> 1 + var len = foldFunc(orig.slice(0, mid)).length + if (len == pos) return mid + else if (len > pos) max = mid + else min = mid + 1 + } + } + + function searchStringForward(doc, query, start, caseFold) { + // Empty string would match anything and never progress, so we + // define it to match nothing instead. + if (!query.length) return null + var fold = caseFold ? doFold : noFold + var lines = fold(query).split(/\r|\n\r?/) + + search: for (var line = start.line, ch = start.ch, last = doc.lastLine() + 1 - lines.length; line <= last; line++, ch = 0) { + var orig = doc.getLine(line).slice(ch), string = fold(orig) + if (lines.length == 1) { + var found = string.indexOf(lines[0]) + if (found == -1) continue search + var start = adjustPos(orig, string, found, fold) + ch + return {from: Pos(line, adjustPos(orig, string, found, fold) + ch), + to: Pos(line, adjustPos(orig, string, found + lines[0].length, fold) + ch)} + } else { + var cutFrom = string.length - lines[0].length + if (string.slice(cutFrom) != lines[0]) continue search + for (var i = 1; i < lines.length - 1; i++) + if (fold(doc.getLine(line + i)) != lines[i]) continue search + var end = doc.getLine(line + lines.length - 1), endString = fold(end), lastLine = lines[lines.length - 1] + if (endString.slice(0, lastLine.length) != lastLine) continue search + return {from: Pos(line, adjustPos(orig, string, cutFrom, fold) + ch), + to: Pos(line + lines.length - 1, adjustPos(end, endString, lastLine.length, fold))} + } + } + } + + function searchStringBackward(doc, query, start, caseFold) { + if (!query.length) return null + var fold = caseFold ? doFold : noFold + var lines = fold(query).split(/\r|\n\r?/) + + search: for (var line = start.line, ch = start.ch, first = doc.firstLine() - 1 + lines.length; line >= first; line--, ch = -1) { + var orig = doc.getLine(line) + if (ch > -1) orig = orig.slice(0, ch) + var string = fold(orig) + if (lines.length == 1) { + var found = string.lastIndexOf(lines[0]) + if (found == -1) continue search + return {from: Pos(line, adjustPos(orig, string, found, fold)), + to: Pos(line, adjustPos(orig, string, found + lines[0].length, fold))} + } else { + var lastLine = lines[lines.length - 1] + if (string.slice(0, lastLine.length) != lastLine) continue search + for (var i = 1, start = line - lines.length + 1; i < lines.length - 1; i++) + if (fold(doc.getLine(start + i)) != lines[i]) continue search + var top = doc.getLine(line + 1 - lines.length), topString = fold(top) + if (topString.slice(topString.length - lines[0].length) != lines[0]) continue search + return {from: Pos(line + 1 - lines.length, adjustPos(top, topString, top.length - lines[0].length, fold)), + to: Pos(line, adjustPos(orig, string, lastLine.length, fold))} + } + } + } + + function SearchCursor(doc, query, pos, options) { + this.atOccurrence = false + this.doc = doc + pos = pos ? doc.clipPos(pos) : Pos(0, 0) + this.pos = {from: pos, to: pos} + + var caseFold + if (typeof options == "object") { + caseFold = options.caseFold + } else { // Backwards compat for when caseFold was the 4th argument + caseFold = options + options = null + } + + if (typeof query == "string") { + if (caseFold == null) caseFold = false + this.matches = function(reverse, pos) { + return (reverse ? searchStringBackward : searchStringForward)(doc, query, pos, caseFold) + } + } else { + query = ensureFlags(query, "gm") + if (!options || options.multiline !== false) + this.matches = function(reverse, pos) { + return (reverse ? searchRegexpBackwardMultiline : searchRegexpForwardMultiline)(doc, query, pos) + } + else + this.matches = function(reverse, pos) { + return (reverse ? searchRegexpBackward : searchRegexpForward)(doc, query, pos) + } + } + } + + SearchCursor.prototype = { + findNext: function() {return this.find(false)}, + findPrevious: function() {return this.find(true)}, + + find: function(reverse) { + var result = this.matches(reverse, this.doc.clipPos(reverse ? this.pos.from : this.pos.to)) + + // Implements weird auto-growing behavior on null-matches for + // backwards-compatibility with the vim code (unfortunately) + while (result && CodeMirror.cmpPos(result.from, result.to) == 0) { + if (reverse) { + if (result.from.ch) result.from = Pos(result.from.line, result.from.ch - 1) + else if (result.from.line == this.doc.firstLine()) result = null + else result = this.matches(reverse, this.doc.clipPos(Pos(result.from.line - 1))) + } else { + if (result.to.ch < this.doc.getLine(result.to.line).length) result.to = Pos(result.to.line, result.to.ch + 1) + else if (result.to.line == this.doc.lastLine()) result = null + else result = this.matches(reverse, Pos(result.to.line + 1, 0)) + } + } + + if (result) { + this.pos = result + this.atOccurrence = true + return this.pos.match || true + } else { + var end = Pos(reverse ? this.doc.firstLine() : this.doc.lastLine() + 1, 0) + this.pos = {from: end, to: end} + return this.atOccurrence = false + } + }, + + from: function() {if (this.atOccurrence) return this.pos.from}, + to: function() {if (this.atOccurrence) return this.pos.to}, + + replace: function(newText, origin) { + if (!this.atOccurrence) return + var lines = CodeMirror.splitLines(newText) + this.doc.replaceRange(lines, this.pos.from, this.pos.to, origin) + this.pos.to = Pos(this.pos.from.line + lines.length - 1, + lines[lines.length - 1].length + (lines.length == 1 ? this.pos.from.ch : 0)) + } + } + + CodeMirror.defineExtension("getSearchCursor", function(query, pos, caseFold) { + return new SearchCursor(this.doc, query, pos, caseFold) + }) + CodeMirror.defineDocExtension("getSearchCursor", function(query, pos, caseFold) { + return new SearchCursor(this, query, pos, caseFold) + }) + + CodeMirror.defineExtension("selectMatches", function(query, caseFold) { + var ranges = [] + var cur = this.getSearchCursor(query, this.getCursor("from"), caseFold) + while (cur.findNext()) { + if (CodeMirror.cmpPos(cur.to(), this.getCursor("to")) > 0) break + ranges.push({anchor: cur.from(), head: cur.to()}) + } + if (ranges.length) + this.setSelections(ranges, 0) + }) +}); diff --git a/src/lib/codemirror/addon/selection/active-line.js b/src/lib/codemirror/addon/selection/active-line.js new file mode 100644 index 0000000..c7b14ce --- /dev/null +++ b/src/lib/codemirror/addon/selection/active-line.js @@ -0,0 +1,72 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: https://codemirror.net/LICENSE + +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../../lib/codemirror")); + else if (typeof define == "function" && define.amd) // AMD + define(["../../lib/codemirror"], mod); + else // Plain browser env + mod(CodeMirror); +})(function(CodeMirror) { + "use strict"; + var WRAP_CLASS = "CodeMirror-activeline"; + var BACK_CLASS = "CodeMirror-activeline-background"; + var GUTT_CLASS = "CodeMirror-activeline-gutter"; + + CodeMirror.defineOption("styleActiveLine", false, function(cm, val, old) { + var prev = old == CodeMirror.Init ? false : old; + if (val == prev) return + if (prev) { + cm.off("beforeSelectionChange", selectionChange); + clearActiveLines(cm); + delete cm.state.activeLines; + } + if (val) { + cm.state.activeLines = []; + updateActiveLines(cm, cm.listSelections()); + cm.on("beforeSelectionChange", selectionChange); + } + }); + + function clearActiveLines(cm) { + for (var i = 0; i < cm.state.activeLines.length; i++) { + cm.removeLineClass(cm.state.activeLines[i], "wrap", WRAP_CLASS); + cm.removeLineClass(cm.state.activeLines[i], "background", BACK_CLASS); + cm.removeLineClass(cm.state.activeLines[i], "gutter", GUTT_CLASS); + } + } + + function sameArray(a, b) { + if (a.length != b.length) return false; + for (var i = 0; i < a.length; i++) + if (a[i] != b[i]) return false; + return true; + } + + function updateActiveLines(cm, ranges) { + var active = []; + for (var i = 0; i < ranges.length; i++) { + var range = ranges[i]; + var option = cm.getOption("styleActiveLine"); + if (typeof option == "object" && option.nonEmpty ? range.anchor.line != range.head.line : !range.empty()) + continue + var line = cm.getLineHandleVisualStart(range.head.line); + if (active[active.length - 1] != line) active.push(line); + } + if (sameArray(cm.state.activeLines, active)) return; + cm.operation(function() { + clearActiveLines(cm); + for (var i = 0; i < active.length; i++) { + cm.addLineClass(active[i], "wrap", WRAP_CLASS); + cm.addLineClass(active[i], "background", BACK_CLASS); + cm.addLineClass(active[i], "gutter", GUTT_CLASS); + } + cm.state.activeLines = active; + }); + } + + function selectionChange(cm, sel) { + updateActiveLines(cm, sel.ranges); + } +}); diff --git a/src/lib/codemirror/lib/codemirror.css b/src/lib/codemirror/lib/codemirror.css new file mode 100644 index 0000000..5ea2d2b --- /dev/null +++ b/src/lib/codemirror/lib/codemirror.css @@ -0,0 +1,350 @@ +/* BASICS */ + +.CodeMirror { + /* Set height, width, borders, and global font properties here */ + font-family: monospace; + height: 300px; + color: black; + direction: ltr; +} + +/* PADDING */ + +.CodeMirror-lines { + padding: 4px 0; /* Vertical padding around content */ +} +.CodeMirror pre.CodeMirror-line, +.CodeMirror pre.CodeMirror-line-like { + padding: 0 4px; /* Horizontal padding of content */ +} + +.CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler { + background-color: transparent; /* The little square between H and V scrollbars */ +} + +/* GUTTER */ + +.CodeMirror-gutters { + border-right: 1px solid #ddd; + background-color: #f7f7f7; + white-space: nowrap; +} +.CodeMirror-linenumbers {} +.CodeMirror-linenumber { + padding: 0 3px 0 5px; + min-width: 20px; + text-align: right; + color: #999; + white-space: nowrap; +} + +.CodeMirror-guttermarker { color: black; } +.CodeMirror-guttermarker-subtle { color: #999; } + +/* CURSOR */ + +.CodeMirror-cursor { + border-left: 1px solid black; + border-right: none; + width: 0; +} +/* Shown when moving in bi-directional text */ +.CodeMirror div.CodeMirror-secondarycursor { + border-left: 1px solid silver; +} +.cm-fat-cursor .CodeMirror-cursor { + width: auto; + border: 0 !important; + background: #7e7; +} +.cm-fat-cursor div.CodeMirror-cursors { + z-index: 1; +} +.cm-fat-cursor-mark { + background-color: rgba(20, 255, 20, 0.5); + -webkit-animation: blink 1.06s steps(1) infinite; + -moz-animation: blink 1.06s steps(1) infinite; + animation: blink 1.06s steps(1) infinite; +} +.cm-animate-fat-cursor { + width: auto; + border: 0; + -webkit-animation: blink 1.06s steps(1) infinite; + -moz-animation: blink 1.06s steps(1) infinite; + animation: blink 1.06s steps(1) infinite; + background-color: #7e7; +} +@-moz-keyframes blink { + 0% {} + 50% { background-color: transparent; } + 100% {} +} +@-webkit-keyframes blink { + 0% {} + 50% { background-color: transparent; } + 100% {} +} +@keyframes blink { + 0% {} + 50% { background-color: transparent; } + 100% {} +} + +/* Can style cursor different in overwrite (non-insert) mode */ +.CodeMirror-overwrite .CodeMirror-cursor {} + +.cm-tab { display: inline-block; text-decoration: inherit; } + +.CodeMirror-rulers { + position: absolute; + left: 0; right: 0; top: -50px; bottom: 0; + overflow: hidden; +} +.CodeMirror-ruler { + border-left: 1px solid #ccc; + top: 0; bottom: 0; + position: absolute; +} + +/* DEFAULT THEME */ + +.cm-s-default .cm-header {color: blue;} +.cm-s-default .cm-quote {color: #090;} +.cm-negative {color: #d44;} +.cm-positive {color: #292;} +.cm-header, .cm-strong {font-weight: bold;} +.cm-em {font-style: italic;} +.cm-link {text-decoration: underline;} +.cm-strikethrough {text-decoration: line-through;} + +.cm-s-default .cm-keyword {color: #708;} +.cm-s-default .cm-atom {color: #219;} +.cm-s-default .cm-number {color: #164;} +.cm-s-default .cm-def {color: #00f;} +.cm-s-default .cm-variable, +.cm-s-default .cm-punctuation, +.cm-s-default .cm-property, +.cm-s-default .cm-operator {} +.cm-s-default .cm-variable-2 {color: #05a;} +.cm-s-default .cm-variable-3, .cm-s-default .cm-type {color: #085;} +.cm-s-default .cm-comment {color: #a50;} +.cm-s-default .cm-string {color: #a11;} +.cm-s-default .cm-string-2 {color: #f50;} +.cm-s-default .cm-meta {color: #555;} +.cm-s-default .cm-qualifier {color: #555;} +.cm-s-default .cm-builtin {color: #30a;} +.cm-s-default .cm-bracket {color: #997;} +.cm-s-default .cm-tag {color: #170;} +.cm-s-default .cm-attribute {color: #00c;} +.cm-s-default .cm-hr {color: #999;} +.cm-s-default .cm-link {color: #00c;} + +.cm-s-default .cm-error {color: #f00;} +.cm-invalidchar {color: #f00;} + +.CodeMirror-composing { border-bottom: 2px solid; } + +/* Default styles for common addons */ + +div.CodeMirror span.CodeMirror-matchingbracket {color: #0b0;} +div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #a22;} +.CodeMirror-matchingtag { background: rgba(255, 150, 0, .3); } +.CodeMirror-activeline-background {background: #e8f2ff;} + +/* STOP */ + +/* The rest of this file contains styles related to the mechanics of + the editor. You probably shouldn't touch them. */ + +.CodeMirror { + position: relative; + overflow: hidden; + background: white; +} + +.CodeMirror-scroll { + overflow: scroll !important; /* Things will break if this is overridden */ + /* 50px is the magic margin used to hide the element's real scrollbars */ + /* See overflow: hidden in .CodeMirror */ + margin-bottom: -50px; margin-right: -50px; + padding-bottom: 50px; + height: 100%; + outline: none; /* Prevent dragging from highlighting the element */ + position: relative; +} +.CodeMirror-sizer { + position: relative; + border-right: 50px solid transparent; +} + +/* The fake, visible scrollbars. Used to force redraw during scrolling + before actual scrolling happens, thus preventing shaking and + flickering artifacts. */ +.CodeMirror-vscrollbar, .CodeMirror-hscrollbar, .CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler { + position: absolute; + z-index: 6; + display: none; + outline: none; +} +.CodeMirror-vscrollbar { + right: 0; top: 0; + overflow-x: hidden; + overflow-y: scroll; +} +.CodeMirror-hscrollbar { + bottom: 0; left: 0; + overflow-y: hidden; + overflow-x: scroll; +} +.CodeMirror-scrollbar-filler { + right: 0; bottom: 0; +} +.CodeMirror-gutter-filler { + left: 0; bottom: 0; +} + +.CodeMirror-gutters { + position: absolute; left: 0; top: 0; + min-height: 100%; + z-index: 3; +} +.CodeMirror-gutter { + white-space: normal; + height: 100%; + display: inline-block; + vertical-align: top; + margin-bottom: -50px; +} +.CodeMirror-gutter-wrapper { + position: absolute; + z-index: 4; + background: none !important; + border: none !important; +} +.CodeMirror-gutter-background { + position: absolute; + top: 0; bottom: 0; + z-index: 4; +} +.CodeMirror-gutter-elt { + position: absolute; + cursor: default; + z-index: 4; +} +.CodeMirror-gutter-wrapper ::selection { background-color: transparent } +.CodeMirror-gutter-wrapper ::-moz-selection { background-color: transparent } + +.CodeMirror-lines { + cursor: text; + min-height: 1px; /* prevents collapsing before first draw */ +} +.CodeMirror pre.CodeMirror-line, +.CodeMirror pre.CodeMirror-line-like { + /* Reset some styles that the rest of the page might have set */ + -moz-border-radius: 0; -webkit-border-radius: 0; border-radius: 0; + border-width: 0; + background: transparent; + font-family: inherit; + font-size: inherit; + margin: 0; + white-space: pre; + word-wrap: normal; + line-height: inherit; + color: inherit; + z-index: 2; + position: relative; + overflow: visible; + -webkit-tap-highlight-color: transparent; + -webkit-font-variant-ligatures: contextual; + font-variant-ligatures: contextual; +} +.CodeMirror-wrap pre.CodeMirror-line, +.CodeMirror-wrap pre.CodeMirror-line-like { + word-wrap: break-word; + white-space: pre-wrap; + word-break: normal; +} + +.CodeMirror-linebackground { + position: absolute; + left: 0; right: 0; top: 0; bottom: 0; + z-index: 0; +} + +.CodeMirror-linewidget { + position: relative; + z-index: 2; + padding: 0.1px; /* Force widget margins to stay inside of the container */ +} + +.CodeMirror-widget {} + +.CodeMirror-rtl pre { direction: rtl; } + +.CodeMirror-code { + outline: none; +} + +/* Force content-box sizing for the elements where we expect it */ +.CodeMirror-scroll, +.CodeMirror-sizer, +.CodeMirror-gutter, +.CodeMirror-gutters, +.CodeMirror-linenumber { + -moz-box-sizing: content-box; + box-sizing: content-box; +} + +.CodeMirror-measure { + position: absolute; + width: 100%; + height: 0; + overflow: hidden; + visibility: hidden; +} + +.CodeMirror-cursor { + position: absolute; + pointer-events: none; +} +.CodeMirror-measure pre { position: static; } + +div.CodeMirror-cursors { + visibility: hidden; + position: relative; + z-index: 3; +} +div.CodeMirror-dragcursors { + visibility: visible; +} + +.CodeMirror-focused div.CodeMirror-cursors { + visibility: visible; +} + +.CodeMirror-selected { background: #d9d9d9; } +.CodeMirror-focused .CodeMirror-selected { background: #d7d4f0; } +.CodeMirror-crosshair { cursor: crosshair; } +.CodeMirror-line::selection, .CodeMirror-line > span::selection, .CodeMirror-line > span > span::selection { background: #d7d4f0; } +.CodeMirror-line::-moz-selection, .CodeMirror-line > span::-moz-selection, .CodeMirror-line > span > span::-moz-selection { background: #d7d4f0; } + +.cm-searching { + background-color: #ffa; + background-color: rgba(255, 255, 0, .4); +} + +/* Used to force a border model for a node */ +.cm-force-border { padding-right: .1px; } + +@media print { + /* Hide the cursor when printing */ + .CodeMirror div.CodeMirror-cursors { + visibility: hidden; + } +} + +/* See issue #2901 */ +.cm-tab-wrap-hack:after { content: ''; } + +/* Help users use markselection to safely style text background */ +span.CodeMirror-selectedtext { background: none; } diff --git a/src/lib/codemirror/lib/codemirror.js b/src/lib/codemirror/lib/codemirror.js new file mode 100644 index 0000000..9aa6da5 --- /dev/null +++ b/src/lib/codemirror/lib/codemirror.js @@ -0,0 +1,9800 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: https://codemirror.net/LICENSE + +// This is CodeMirror (https://codemirror.net), a code editor +// implemented in JavaScript on top of the browser's DOM. +// +// You can find some technical background for some of the code below +// at http://marijnhaverbeke.nl/blog/#cm-internals . + +(function (global, factory) { + typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() : + typeof define === 'function' && define.amd ? define(factory) : + (global = global || self, global.CodeMirror = factory()); +}(this, (function () { 'use strict'; + + // Kludges for bugs and behavior differences that can't be feature + // detected are enabled based on userAgent etc sniffing. + var userAgent = navigator.userAgent; + var platform = navigator.platform; + + var gecko = /gecko\/\d/i.test(userAgent); + var ie_upto10 = /MSIE \d/.test(userAgent); + var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent); + var edge = /Edge\/(\d+)/.exec(userAgent); + var ie = ie_upto10 || ie_11up || edge; + var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : +(edge || ie_11up)[1]); + var webkit = !edge && /WebKit\//.test(userAgent); + var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent); + var chrome = !edge && /Chrome\//.test(userAgent); + var presto = /Opera\//.test(userAgent); + var safari = /Apple Computer/.test(navigator.vendor); + var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent); + var phantom = /PhantomJS/.test(userAgent); + + var ios = safari && (/Mobile\/\w+/.test(userAgent) || navigator.maxTouchPoints > 2); + var android = /Android/.test(userAgent); + // This is woefully incomplete. Suggestions for alternative methods welcome. + var mobile = ios || android || /webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent); + var mac = ios || /Mac/.test(platform); + var chromeOS = /\bCrOS\b/.test(userAgent); + var windows = /win/i.test(platform); + + var presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/); + if (presto_version) { presto_version = Number(presto_version[1]); } + if (presto_version && presto_version >= 15) { presto = false; webkit = true; } + // Some browsers use the wrong event properties to signal cmd/ctrl on OS X + var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11)); + var captureRightClick = gecko || (ie && ie_version >= 9); + + function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*") } + + var rmClass = function(node, cls) { + var current = node.className; + var match = classTest(cls).exec(current); + if (match) { + var after = current.slice(match.index + match[0].length); + node.className = current.slice(0, match.index) + (after ? match[1] + after : ""); + } + }; + + function removeChildren(e) { + for (var count = e.childNodes.length; count > 0; --count) + { e.removeChild(e.firstChild); } + return e + } + + function removeChildrenAndAdd(parent, e) { + return removeChildren(parent).appendChild(e) + } + + function elt(tag, content, className, style) { + var e = document.createElement(tag); + if (className) { e.className = className; } + if (style) { e.style.cssText = style; } + if (typeof content == "string") { e.appendChild(document.createTextNode(content)); } + else if (content) { for (var i = 0; i < content.length; ++i) { e.appendChild(content[i]); } } + return e + } + // wrapper for elt, which removes the elt from the accessibility tree + function eltP(tag, content, className, style) { + var e = elt(tag, content, className, style); + e.setAttribute("role", "presentation"); + return e + } + + var range; + if (document.createRange) { range = function(node, start, end, endNode) { + var r = document.createRange(); + r.setEnd(endNode || node, end); + r.setStart(node, start); + return r + }; } + else { range = function(node, start, end) { + var r = document.body.createTextRange(); + try { r.moveToElementText(node.parentNode); } + catch(e) { return r } + r.collapse(true); + r.moveEnd("character", end); + r.moveStart("character", start); + return r + }; } + + function contains(parent, child) { + if (child.nodeType == 3) // Android browser always returns false when child is a textnode + { child = child.parentNode; } + if (parent.contains) + { return parent.contains(child) } + do { + if (child.nodeType == 11) { child = child.host; } + if (child == parent) { return true } + } while (child = child.parentNode) + } + + function activeElt() { + // IE and Edge may throw an "Unspecified Error" when accessing document.activeElement. + // IE < 10 will throw when accessed while the page is loading or in an iframe. + // IE > 9 and Edge will throw when accessed in an iframe if document.body is unavailable. + var activeElement; + try { + activeElement = document.activeElement; + } catch(e) { + activeElement = document.body || null; + } + while (activeElement && activeElement.shadowRoot && activeElement.shadowRoot.activeElement) + { activeElement = activeElement.shadowRoot.activeElement; } + return activeElement + } + + function addClass(node, cls) { + var current = node.className; + if (!classTest(cls).test(current)) { node.className += (current ? " " : "") + cls; } + } + function joinClasses(a, b) { + var as = a.split(" "); + for (var i = 0; i < as.length; i++) + { if (as[i] && !classTest(as[i]).test(b)) { b += " " + as[i]; } } + return b + } + + var selectInput = function(node) { node.select(); }; + if (ios) // Mobile Safari apparently has a bug where select() is broken. + { selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; }; } + else if (ie) // Suppress mysterious IE10 errors + { selectInput = function(node) { try { node.select(); } catch(_e) {} }; } + + function bind(f) { + var args = Array.prototype.slice.call(arguments, 1); + return function(){return f.apply(null, args)} + } + + function copyObj(obj, target, overwrite) { + if (!target) { target = {}; } + for (var prop in obj) + { if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop))) + { target[prop] = obj[prop]; } } + return target + } + + // Counts the column offset in a string, taking tabs into account. + // Used mostly to find indentation. + function countColumn(string, end, tabSize, startIndex, startValue) { + if (end == null) { + end = string.search(/[^\s\u00a0]/); + if (end == -1) { end = string.length; } + } + for (var i = startIndex || 0, n = startValue || 0;;) { + var nextTab = string.indexOf("\t", i); + if (nextTab < 0 || nextTab >= end) + { return n + (end - i) } + n += nextTab - i; + n += tabSize - (n % tabSize); + i = nextTab + 1; + } + } + + var Delayed = function() { + this.id = null; + this.f = null; + this.time = 0; + this.handler = bind(this.onTimeout, this); + }; + Delayed.prototype.onTimeout = function (self) { + self.id = 0; + if (self.time <= +new Date) { + self.f(); + } else { + setTimeout(self.handler, self.time - +new Date); + } + }; + Delayed.prototype.set = function (ms, f) { + this.f = f; + var time = +new Date + ms; + if (!this.id || time < this.time) { + clearTimeout(this.id); + this.id = setTimeout(this.handler, ms); + this.time = time; + } + }; + + function indexOf(array, elt) { + for (var i = 0; i < array.length; ++i) + { if (array[i] == elt) { return i } } + return -1 + } + + // Number of pixels added to scroller and sizer to hide scrollbar + var scrollerGap = 50; + + // Returned or thrown by various protocols to signal 'I'm not + // handling this'. + var Pass = {toString: function(){return "CodeMirror.Pass"}}; + + // Reused option objects for setSelection & friends + var sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"}; + + // The inverse of countColumn -- find the offset that corresponds to + // a particular column. + function findColumn(string, goal, tabSize) { + for (var pos = 0, col = 0;;) { + var nextTab = string.indexOf("\t", pos); + if (nextTab == -1) { nextTab = string.length; } + var skipped = nextTab - pos; + if (nextTab == string.length || col + skipped >= goal) + { return pos + Math.min(skipped, goal - col) } + col += nextTab - pos; + col += tabSize - (col % tabSize); + pos = nextTab + 1; + if (col >= goal) { return pos } + } + } + + var spaceStrs = [""]; + function spaceStr(n) { + while (spaceStrs.length <= n) + { spaceStrs.push(lst(spaceStrs) + " "); } + return spaceStrs[n] + } + + function lst(arr) { return arr[arr.length-1] } + + function map(array, f) { + var out = []; + for (var i = 0; i < array.length; i++) { out[i] = f(array[i], i); } + return out + } + + function insertSorted(array, value, score) { + var pos = 0, priority = score(value); + while (pos < array.length && score(array[pos]) <= priority) { pos++; } + array.splice(pos, 0, value); + } + + function nothing() {} + + function createObj(base, props) { + var inst; + if (Object.create) { + inst = Object.create(base); + } else { + nothing.prototype = base; + inst = new nothing(); + } + if (props) { copyObj(props, inst); } + return inst + } + + var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/; + function isWordCharBasic(ch) { + return /\w/.test(ch) || ch > "\x80" && + (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch)) + } + function isWordChar(ch, helper) { + if (!helper) { return isWordCharBasic(ch) } + if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) { return true } + return helper.test(ch) + } + + function isEmpty(obj) { + for (var n in obj) { if (obj.hasOwnProperty(n) && obj[n]) { return false } } + return true + } + + // Extending unicode characters. A series of a non-extending char + + // any number of extending chars is treated as a single unit as far + // as editing and measuring is concerned. This is not fully correct, + // since some scripts/fonts/browsers also treat other configurations + // of code points as a group. + var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/; + function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch) } + + // Returns a number from the range [`0`; `str.length`] unless `pos` is outside that range. + function skipExtendingChars(str, pos, dir) { + while ((dir < 0 ? pos > 0 : pos < str.length) && isExtendingChar(str.charAt(pos))) { pos += dir; } + return pos + } + + // Returns the value from the range [`from`; `to`] that satisfies + // `pred` and is closest to `from`. Assumes that at least `to` + // satisfies `pred`. Supports `from` being greater than `to`. + function findFirst(pred, from, to) { + // At any point we are certain `to` satisfies `pred`, don't know + // whether `from` does. + var dir = from > to ? -1 : 1; + for (;;) { + if (from == to) { return from } + var midF = (from + to) / 2, mid = dir < 0 ? Math.ceil(midF) : Math.floor(midF); + if (mid == from) { return pred(mid) ? from : to } + if (pred(mid)) { to = mid; } + else { from = mid + dir; } + } + } + + // BIDI HELPERS + + function iterateBidiSections(order, from, to, f) { + if (!order) { return f(from, to, "ltr", 0) } + var found = false; + for (var i = 0; i < order.length; ++i) { + var part = order[i]; + if (part.from < to && part.to > from || from == to && part.to == from) { + f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr", i); + found = true; + } + } + if (!found) { f(from, to, "ltr"); } + } + + var bidiOther = null; + function getBidiPartAt(order, ch, sticky) { + var found; + bidiOther = null; + for (var i = 0; i < order.length; ++i) { + var cur = order[i]; + if (cur.from < ch && cur.to > ch) { return i } + if (cur.to == ch) { + if (cur.from != cur.to && sticky == "before") { found = i; } + else { bidiOther = i; } + } + if (cur.from == ch) { + if (cur.from != cur.to && sticky != "before") { found = i; } + else { bidiOther = i; } + } + } + return found != null ? found : bidiOther + } + + // Bidirectional ordering algorithm + // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm + // that this (partially) implements. + + // One-char codes used for character types: + // L (L): Left-to-Right + // R (R): Right-to-Left + // r (AL): Right-to-Left Arabic + // 1 (EN): European Number + // + (ES): European Number Separator + // % (ET): European Number Terminator + // n (AN): Arabic Number + // , (CS): Common Number Separator + // m (NSM): Non-Spacing Mark + // b (BN): Boundary Neutral + // s (B): Paragraph Separator + // t (S): Segment Separator + // w (WS): Whitespace + // N (ON): Other Neutrals + + // Returns null if characters are ordered as they appear + // (left-to-right), or an array of sections ({from, to, level} + // objects) in the order in which they occur visually. + var bidiOrdering = (function() { + // Character types for codepoints 0 to 0xff + var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN"; + // Character types for codepoints 0x600 to 0x6f9 + var arabicTypes = "nnnnnnNNr%%r,rNNmmmmmmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmnNmmmmmmrrmmNmmmmrr1111111111"; + function charType(code) { + if (code <= 0xf7) { return lowTypes.charAt(code) } + else if (0x590 <= code && code <= 0x5f4) { return "R" } + else if (0x600 <= code && code <= 0x6f9) { return arabicTypes.charAt(code - 0x600) } + else if (0x6ee <= code && code <= 0x8ac) { return "r" } + else if (0x2000 <= code && code <= 0x200b) { return "w" } + else if (code == 0x200c) { return "b" } + else { return "L" } + } + + var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/; + var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/; + + function BidiSpan(level, from, to) { + this.level = level; + this.from = from; this.to = to; + } + + return function(str, direction) { + var outerType = direction == "ltr" ? "L" : "R"; + + if (str.length == 0 || direction == "ltr" && !bidiRE.test(str)) { return false } + var len = str.length, types = []; + for (var i = 0; i < len; ++i) + { types.push(charType(str.charCodeAt(i))); } + + // W1. Examine each non-spacing mark (NSM) in the level run, and + // change the type of the NSM to the type of the previous + // character. If the NSM is at the start of the level run, it will + // get the type of sor. + for (var i$1 = 0, prev = outerType; i$1 < len; ++i$1) { + var type = types[i$1]; + if (type == "m") { types[i$1] = prev; } + else { prev = type; } + } + + // W2. Search backwards from each instance of a European number + // until the first strong type (R, L, AL, or sor) is found. If an + // AL is found, change the type of the European number to Arabic + // number. + // W3. Change all ALs to R. + for (var i$2 = 0, cur = outerType; i$2 < len; ++i$2) { + var type$1 = types[i$2]; + if (type$1 == "1" && cur == "r") { types[i$2] = "n"; } + else if (isStrong.test(type$1)) { cur = type$1; if (type$1 == "r") { types[i$2] = "R"; } } + } + + // W4. A single European separator between two European numbers + // changes to a European number. A single common separator between + // two numbers of the same type changes to that type. + for (var i$3 = 1, prev$1 = types[0]; i$3 < len - 1; ++i$3) { + var type$2 = types[i$3]; + if (type$2 == "+" && prev$1 == "1" && types[i$3+1] == "1") { types[i$3] = "1"; } + else if (type$2 == "," && prev$1 == types[i$3+1] && + (prev$1 == "1" || prev$1 == "n")) { types[i$3] = prev$1; } + prev$1 = type$2; + } + + // W5. A sequence of European terminators adjacent to European + // numbers changes to all European numbers. + // W6. Otherwise, separators and terminators change to Other + // Neutral. + for (var i$4 = 0; i$4 < len; ++i$4) { + var type$3 = types[i$4]; + if (type$3 == ",") { types[i$4] = "N"; } + else if (type$3 == "%") { + var end = (void 0); + for (end = i$4 + 1; end < len && types[end] == "%"; ++end) {} + var replace = (i$4 && types[i$4-1] == "!") || (end < len && types[end] == "1") ? "1" : "N"; + for (var j = i$4; j < end; ++j) { types[j] = replace; } + i$4 = end - 1; + } + } + + // W7. Search backwards from each instance of a European number + // until the first strong type (R, L, or sor) is found. If an L is + // found, then change the type of the European number to L. + for (var i$5 = 0, cur$1 = outerType; i$5 < len; ++i$5) { + var type$4 = types[i$5]; + if (cur$1 == "L" && type$4 == "1") { types[i$5] = "L"; } + else if (isStrong.test(type$4)) { cur$1 = type$4; } + } + + // N1. A sequence of neutrals takes the direction of the + // surrounding strong text if the text on both sides has the same + // direction. European and Arabic numbers act as if they were R in + // terms of their influence on neutrals. Start-of-level-run (sor) + // and end-of-level-run (eor) are used at level run boundaries. + // N2. Any remaining neutrals take the embedding direction. + for (var i$6 = 0; i$6 < len; ++i$6) { + if (isNeutral.test(types[i$6])) { + var end$1 = (void 0); + for (end$1 = i$6 + 1; end$1 < len && isNeutral.test(types[end$1]); ++end$1) {} + var before = (i$6 ? types[i$6-1] : outerType) == "L"; + var after = (end$1 < len ? types[end$1] : outerType) == "L"; + var replace$1 = before == after ? (before ? "L" : "R") : outerType; + for (var j$1 = i$6; j$1 < end$1; ++j$1) { types[j$1] = replace$1; } + i$6 = end$1 - 1; + } + } + + // Here we depart from the documented algorithm, in order to avoid + // building up an actual levels array. Since there are only three + // levels (0, 1, 2) in an implementation that doesn't take + // explicit embedding into account, we can build up the order on + // the fly, without following the level-based algorithm. + var order = [], m; + for (var i$7 = 0; i$7 < len;) { + if (countsAsLeft.test(types[i$7])) { + var start = i$7; + for (++i$7; i$7 < len && countsAsLeft.test(types[i$7]); ++i$7) {} + order.push(new BidiSpan(0, start, i$7)); + } else { + var pos = i$7, at = order.length, isRTL = direction == "rtl" ? 1 : 0; + for (++i$7; i$7 < len && types[i$7] != "L"; ++i$7) {} + for (var j$2 = pos; j$2 < i$7;) { + if (countsAsNum.test(types[j$2])) { + if (pos < j$2) { order.splice(at, 0, new BidiSpan(1, pos, j$2)); at += isRTL; } + var nstart = j$2; + for (++j$2; j$2 < i$7 && countsAsNum.test(types[j$2]); ++j$2) {} + order.splice(at, 0, new BidiSpan(2, nstart, j$2)); + at += isRTL; + pos = j$2; + } else { ++j$2; } + } + if (pos < i$7) { order.splice(at, 0, new BidiSpan(1, pos, i$7)); } + } + } + if (direction == "ltr") { + if (order[0].level == 1 && (m = str.match(/^\s+/))) { + order[0].from = m[0].length; + order.unshift(new BidiSpan(0, 0, m[0].length)); + } + if (lst(order).level == 1 && (m = str.match(/\s+$/))) { + lst(order).to -= m[0].length; + order.push(new BidiSpan(0, len - m[0].length, len)); + } + } + + return direction == "rtl" ? order.reverse() : order + } + })(); + + // Get the bidi ordering for the given line (and cache it). Returns + // false for lines that are fully left-to-right, and an array of + // BidiSpan objects otherwise. + function getOrder(line, direction) { + var order = line.order; + if (order == null) { order = line.order = bidiOrdering(line.text, direction); } + return order + } + + // EVENT HANDLING + + // Lightweight event framework. on/off also work on DOM nodes, + // registering native DOM handlers. + + var noHandlers = []; + + var on = function(emitter, type, f) { + if (emitter.addEventListener) { + emitter.addEventListener(type, f, false); + } else if (emitter.attachEvent) { + emitter.attachEvent("on" + type, f); + } else { + var map = emitter._handlers || (emitter._handlers = {}); + map[type] = (map[type] || noHandlers).concat(f); + } + }; + + function getHandlers(emitter, type) { + return emitter._handlers && emitter._handlers[type] || noHandlers + } + + function off(emitter, type, f) { + if (emitter.removeEventListener) { + emitter.removeEventListener(type, f, false); + } else if (emitter.detachEvent) { + emitter.detachEvent("on" + type, f); + } else { + var map = emitter._handlers, arr = map && map[type]; + if (arr) { + var index = indexOf(arr, f); + if (index > -1) + { map[type] = arr.slice(0, index).concat(arr.slice(index + 1)); } + } + } + } + + function signal(emitter, type /*, values...*/) { + var handlers = getHandlers(emitter, type); + if (!handlers.length) { return } + var args = Array.prototype.slice.call(arguments, 2); + for (var i = 0; i < handlers.length; ++i) { handlers[i].apply(null, args); } + } + + // The DOM events that CodeMirror handles can be overridden by + // registering a (non-DOM) handler on the editor for the event name, + // and preventDefault-ing the event in that handler. + function signalDOMEvent(cm, e, override) { + if (typeof e == "string") + { e = {type: e, preventDefault: function() { this.defaultPrevented = true; }}; } + signal(cm, override || e.type, cm, e); + return e_defaultPrevented(e) || e.codemirrorIgnore + } + + function signalCursorActivity(cm) { + var arr = cm._handlers && cm._handlers.cursorActivity; + if (!arr) { return } + var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []); + for (var i = 0; i < arr.length; ++i) { if (indexOf(set, arr[i]) == -1) + { set.push(arr[i]); } } + } + + function hasHandler(emitter, type) { + return getHandlers(emitter, type).length > 0 + } + + // Add on and off methods to a constructor's prototype, to make + // registering events on such objects more convenient. + function eventMixin(ctor) { + ctor.prototype.on = function(type, f) {on(this, type, f);}; + ctor.prototype.off = function(type, f) {off(this, type, f);}; + } + + // Due to the fact that we still support jurassic IE versions, some + // compatibility wrappers are needed. + + function e_preventDefault(e) { + if (e.preventDefault) { e.preventDefault(); } + else { e.returnValue = false; } + } + function e_stopPropagation(e) { + if (e.stopPropagation) { e.stopPropagation(); } + else { e.cancelBubble = true; } + } + function e_defaultPrevented(e) { + return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false + } + function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);} + + function e_target(e) {return e.target || e.srcElement} + function e_button(e) { + var b = e.which; + if (b == null) { + if (e.button & 1) { b = 1; } + else if (e.button & 2) { b = 3; } + else if (e.button & 4) { b = 2; } + } + if (mac && e.ctrlKey && b == 1) { b = 3; } + return b + } + + // Detect drag-and-drop + var dragAndDrop = function() { + // There is *some* kind of drag-and-drop support in IE6-8, but I + // couldn't get it to work yet. + if (ie && ie_version < 9) { return false } + var div = elt('div'); + return "draggable" in div || "dragDrop" in div + }(); + + var zwspSupported; + function zeroWidthElement(measure) { + if (zwspSupported == null) { + var test = elt("span", "\u200b"); + removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")])); + if (measure.firstChild.offsetHeight != 0) + { zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8); } + } + var node = zwspSupported ? elt("span", "\u200b") : + elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px"); + node.setAttribute("cm-text", ""); + return node + } + + // Feature-detect IE's crummy client rect reporting for bidi text + var badBidiRects; + function hasBadBidiRects(measure) { + if (badBidiRects != null) { return badBidiRects } + var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA")); + var r0 = range(txt, 0, 1).getBoundingClientRect(); + var r1 = range(txt, 1, 2).getBoundingClientRect(); + removeChildren(measure); + if (!r0 || r0.left == r0.right) { return false } // Safari returns null in some cases (#2780) + return badBidiRects = (r1.right - r0.right < 3) + } + + // See if "".split is the broken IE version, if so, provide an + // alternative way to split lines. + var splitLinesAuto = "\n\nb".split(/\n/).length != 3 ? function (string) { + var pos = 0, result = [], l = string.length; + while (pos <= l) { + var nl = string.indexOf("\n", pos); + if (nl == -1) { nl = string.length; } + var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl); + var rt = line.indexOf("\r"); + if (rt != -1) { + result.push(line.slice(0, rt)); + pos += rt + 1; + } else { + result.push(line); + pos = nl + 1; + } + } + return result + } : function (string) { return string.split(/\r\n?|\n/); }; + + var hasSelection = window.getSelection ? function (te) { + try { return te.selectionStart != te.selectionEnd } + catch(e) { return false } + } : function (te) { + var range; + try {range = te.ownerDocument.selection.createRange();} + catch(e) {} + if (!range || range.parentElement() != te) { return false } + return range.compareEndPoints("StartToEnd", range) != 0 + }; + + var hasCopyEvent = (function () { + var e = elt("div"); + if ("oncopy" in e) { return true } + e.setAttribute("oncopy", "return;"); + return typeof e.oncopy == "function" + })(); + + var badZoomedRects = null; + function hasBadZoomedRects(measure) { + if (badZoomedRects != null) { return badZoomedRects } + var node = removeChildrenAndAdd(measure, elt("span", "x")); + var normal = node.getBoundingClientRect(); + var fromRange = range(node, 0, 1).getBoundingClientRect(); + return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1 + } + + // Known modes, by name and by MIME + var modes = {}, mimeModes = {}; + + // Extra arguments are stored as the mode's dependencies, which is + // used by (legacy) mechanisms like loadmode.js to automatically + // load a mode. (Preferred mechanism is the require/define calls.) + function defineMode(name, mode) { + if (arguments.length > 2) + { mode.dependencies = Array.prototype.slice.call(arguments, 2); } + modes[name] = mode; + } + + function defineMIME(mime, spec) { + mimeModes[mime] = spec; + } + + // Given a MIME type, a {name, ...options} config object, or a name + // string, return a mode config object. + function resolveMode(spec) { + if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) { + spec = mimeModes[spec]; + } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) { + var found = mimeModes[spec.name]; + if (typeof found == "string") { found = {name: found}; } + spec = createObj(found, spec); + spec.name = found.name; + } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) { + return resolveMode("application/xml") + } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+json$/.test(spec)) { + return resolveMode("application/json") + } + if (typeof spec == "string") { return {name: spec} } + else { return spec || {name: "null"} } + } + + // Given a mode spec (anything that resolveMode accepts), find and + // initialize an actual mode object. + function getMode(options, spec) { + spec = resolveMode(spec); + var mfactory = modes[spec.name]; + if (!mfactory) { return getMode(options, "text/plain") } + var modeObj = mfactory(options, spec); + if (modeExtensions.hasOwnProperty(spec.name)) { + var exts = modeExtensions[spec.name]; + for (var prop in exts) { + if (!exts.hasOwnProperty(prop)) { continue } + if (modeObj.hasOwnProperty(prop)) { modeObj["_" + prop] = modeObj[prop]; } + modeObj[prop] = exts[prop]; + } + } + modeObj.name = spec.name; + if (spec.helperType) { modeObj.helperType = spec.helperType; } + if (spec.modeProps) { for (var prop$1 in spec.modeProps) + { modeObj[prop$1] = spec.modeProps[prop$1]; } } + + return modeObj + } + + // This can be used to attach properties to mode objects from + // outside the actual mode definition. + var modeExtensions = {}; + function extendMode(mode, properties) { + var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {}); + copyObj(properties, exts); + } + + function copyState(mode, state) { + if (state === true) { return state } + if (mode.copyState) { return mode.copyState(state) } + var nstate = {}; + for (var n in state) { + var val = state[n]; + if (val instanceof Array) { val = val.concat([]); } + nstate[n] = val; + } + return nstate + } + + // Given a mode and a state (for that mode), find the inner mode and + // state at the position that the state refers to. + function innerMode(mode, state) { + var info; + while (mode.innerMode) { + info = mode.innerMode(state); + if (!info || info.mode == mode) { break } + state = info.state; + mode = info.mode; + } + return info || {mode: mode, state: state} + } + + function startState(mode, a1, a2) { + return mode.startState ? mode.startState(a1, a2) : true + } + + // STRING STREAM + + // Fed to the mode parsers, provides helper functions to make + // parsers more succinct. + + var StringStream = function(string, tabSize, lineOracle) { + this.pos = this.start = 0; + this.string = string; + this.tabSize = tabSize || 8; + this.lastColumnPos = this.lastColumnValue = 0; + this.lineStart = 0; + this.lineOracle = lineOracle; + }; + + StringStream.prototype.eol = function () {return this.pos >= this.string.length}; + StringStream.prototype.sol = function () {return this.pos == this.lineStart}; + StringStream.prototype.peek = function () {return this.string.charAt(this.pos) || undefined}; + StringStream.prototype.next = function () { + if (this.pos < this.string.length) + { return this.string.charAt(this.pos++) } + }; + StringStream.prototype.eat = function (match) { + var ch = this.string.charAt(this.pos); + var ok; + if (typeof match == "string") { ok = ch == match; } + else { ok = ch && (match.test ? match.test(ch) : match(ch)); } + if (ok) {++this.pos; return ch} + }; + StringStream.prototype.eatWhile = function (match) { + var start = this.pos; + while (this.eat(match)){} + return this.pos > start + }; + StringStream.prototype.eatSpace = function () { + var start = this.pos; + while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) { ++this.pos; } + return this.pos > start + }; + StringStream.prototype.skipToEnd = function () {this.pos = this.string.length;}; + StringStream.prototype.skipTo = function (ch) { + var found = this.string.indexOf(ch, this.pos); + if (found > -1) {this.pos = found; return true} + }; + StringStream.prototype.backUp = function (n) {this.pos -= n;}; + StringStream.prototype.column = function () { + if (this.lastColumnPos < this.start) { + this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue); + this.lastColumnPos = this.start; + } + return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0) + }; + StringStream.prototype.indentation = function () { + return countColumn(this.string, null, this.tabSize) - + (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0) + }; + StringStream.prototype.match = function (pattern, consume, caseInsensitive) { + if (typeof pattern == "string") { + var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; }; + var substr = this.string.substr(this.pos, pattern.length); + if (cased(substr) == cased(pattern)) { + if (consume !== false) { this.pos += pattern.length; } + return true + } + } else { + var match = this.string.slice(this.pos).match(pattern); + if (match && match.index > 0) { return null } + if (match && consume !== false) { this.pos += match[0].length; } + return match + } + }; + StringStream.prototype.current = function (){return this.string.slice(this.start, this.pos)}; + StringStream.prototype.hideFirstChars = function (n, inner) { + this.lineStart += n; + try { return inner() } + finally { this.lineStart -= n; } + }; + StringStream.prototype.lookAhead = function (n) { + var oracle = this.lineOracle; + return oracle && oracle.lookAhead(n) + }; + StringStream.prototype.baseToken = function () { + var oracle = this.lineOracle; + return oracle && oracle.baseToken(this.pos) + }; + + // Find the line object corresponding to the given line number. + function getLine(doc, n) { + n -= doc.first; + if (n < 0 || n >= doc.size) { throw new Error("There is no line " + (n + doc.first) + " in the document.") } + var chunk = doc; + while (!chunk.lines) { + for (var i = 0;; ++i) { + var child = chunk.children[i], sz = child.chunkSize(); + if (n < sz) { chunk = child; break } + n -= sz; + } + } + return chunk.lines[n] + } + + // Get the part of a document between two positions, as an array of + // strings. + function getBetween(doc, start, end) { + var out = [], n = start.line; + doc.iter(start.line, end.line + 1, function (line) { + var text = line.text; + if (n == end.line) { text = text.slice(0, end.ch); } + if (n == start.line) { text = text.slice(start.ch); } + out.push(text); + ++n; + }); + return out + } + // Get the lines between from and to, as array of strings. + function getLines(doc, from, to) { + var out = []; + doc.iter(from, to, function (line) { out.push(line.text); }); // iter aborts when callback returns truthy value + return out + } + + // Update the height of a line, propagating the height change + // upwards to parent nodes. + function updateLineHeight(line, height) { + var diff = height - line.height; + if (diff) { for (var n = line; n; n = n.parent) { n.height += diff; } } + } + + // Given a line object, find its line number by walking up through + // its parent links. + function lineNo(line) { + if (line.parent == null) { return null } + var cur = line.parent, no = indexOf(cur.lines, line); + for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) { + for (var i = 0;; ++i) { + if (chunk.children[i] == cur) { break } + no += chunk.children[i].chunkSize(); + } + } + return no + cur.first + } + + // Find the line at the given vertical position, using the height + // information in the document tree. + function lineAtHeight(chunk, h) { + var n = chunk.first; + outer: do { + for (var i$1 = 0; i$1 < chunk.children.length; ++i$1) { + var child = chunk.children[i$1], ch = child.height; + if (h < ch) { chunk = child; continue outer } + h -= ch; + n += child.chunkSize(); + } + return n + } while (!chunk.lines) + var i = 0; + for (; i < chunk.lines.length; ++i) { + var line = chunk.lines[i], lh = line.height; + if (h < lh) { break } + h -= lh; + } + return n + i + } + + function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size} + + function lineNumberFor(options, i) { + return String(options.lineNumberFormatter(i + options.firstLineNumber)) + } + + // A Pos instance represents a position within the text. + function Pos(line, ch, sticky) { + if ( sticky === void 0 ) sticky = null; + + if (!(this instanceof Pos)) { return new Pos(line, ch, sticky) } + this.line = line; + this.ch = ch; + this.sticky = sticky; + } + + // Compare two positions, return 0 if they are the same, a negative + // number when a is less, and a positive number otherwise. + function cmp(a, b) { return a.line - b.line || a.ch - b.ch } + + function equalCursorPos(a, b) { return a.sticky == b.sticky && cmp(a, b) == 0 } + + function copyPos(x) {return Pos(x.line, x.ch)} + function maxPos(a, b) { return cmp(a, b) < 0 ? b : a } + function minPos(a, b) { return cmp(a, b) < 0 ? a : b } + + // Most of the external API clips given positions to make sure they + // actually exist within the document. + function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))} + function clipPos(doc, pos) { + if (pos.line < doc.first) { return Pos(doc.first, 0) } + var last = doc.first + doc.size - 1; + if (pos.line > last) { return Pos(last, getLine(doc, last).text.length) } + return clipToLen(pos, getLine(doc, pos.line).text.length) + } + function clipToLen(pos, linelen) { + var ch = pos.ch; + if (ch == null || ch > linelen) { return Pos(pos.line, linelen) } + else if (ch < 0) { return Pos(pos.line, 0) } + else { return pos } + } + function clipPosArray(doc, array) { + var out = []; + for (var i = 0; i < array.length; i++) { out[i] = clipPos(doc, array[i]); } + return out + } + + var SavedContext = function(state, lookAhead) { + this.state = state; + this.lookAhead = lookAhead; + }; + + var Context = function(doc, state, line, lookAhead) { + this.state = state; + this.doc = doc; + this.line = line; + this.maxLookAhead = lookAhead || 0; + this.baseTokens = null; + this.baseTokenPos = 1; + }; + + Context.prototype.lookAhead = function (n) { + var line = this.doc.getLine(this.line + n); + if (line != null && n > this.maxLookAhead) { this.maxLookAhead = n; } + return line + }; + + Context.prototype.baseToken = function (n) { + if (!this.baseTokens) { return null } + while (this.baseTokens[this.baseTokenPos] <= n) + { this.baseTokenPos += 2; } + var type = this.baseTokens[this.baseTokenPos + 1]; + return {type: type && type.replace(/( |^)overlay .*/, ""), + size: this.baseTokens[this.baseTokenPos] - n} + }; + + Context.prototype.nextLine = function () { + this.line++; + if (this.maxLookAhead > 0) { this.maxLookAhead--; } + }; + + Context.fromSaved = function (doc, saved, line) { + if (saved instanceof SavedContext) + { return new Context(doc, copyState(doc.mode, saved.state), line, saved.lookAhead) } + else + { return new Context(doc, copyState(doc.mode, saved), line) } + }; + + Context.prototype.save = function (copy) { + var state = copy !== false ? copyState(this.doc.mode, this.state) : this.state; + return this.maxLookAhead > 0 ? new SavedContext(state, this.maxLookAhead) : state + }; + + + // Compute a style array (an array starting with a mode generation + // -- for invalidation -- followed by pairs of end positions and + // style strings), which is used to highlight the tokens on the + // line. + function highlightLine(cm, line, context, forceToEnd) { + // A styles array always starts with a number identifying the + // mode/overlays that it is based on (for easy invalidation). + var st = [cm.state.modeGen], lineClasses = {}; + // Compute the base array of styles + runMode(cm, line.text, cm.doc.mode, context, function (end, style) { return st.push(end, style); }, + lineClasses, forceToEnd); + var state = context.state; + + // Run overlays, adjust style array. + var loop = function ( o ) { + context.baseTokens = st; + var overlay = cm.state.overlays[o], i = 1, at = 0; + context.state = true; + runMode(cm, line.text, overlay.mode, context, function (end, style) { + var start = i; + // Ensure there's a token end at the current position, and that i points at it + while (at < end) { + var i_end = st[i]; + if (i_end > end) + { st.splice(i, 1, end, st[i+1], i_end); } + i += 2; + at = Math.min(end, i_end); + } + if (!style) { return } + if (overlay.opaque) { + st.splice(start, i - start, end, "overlay " + style); + i = start + 2; + } else { + for (; start < i; start += 2) { + var cur = st[start+1]; + st[start+1] = (cur ? cur + " " : "") + "overlay " + style; + } + } + }, lineClasses); + context.state = state; + context.baseTokens = null; + context.baseTokenPos = 1; + }; + + for (var o = 0; o < cm.state.overlays.length; ++o) loop( o ); + + return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null} + } + + function getLineStyles(cm, line, updateFrontier) { + if (!line.styles || line.styles[0] != cm.state.modeGen) { + var context = getContextBefore(cm, lineNo(line)); + var resetState = line.text.length > cm.options.maxHighlightLength && copyState(cm.doc.mode, context.state); + var result = highlightLine(cm, line, context); + if (resetState) { context.state = resetState; } + line.stateAfter = context.save(!resetState); + line.styles = result.styles; + if (result.classes) { line.styleClasses = result.classes; } + else if (line.styleClasses) { line.styleClasses = null; } + if (updateFrontier === cm.doc.highlightFrontier) + { cm.doc.modeFrontier = Math.max(cm.doc.modeFrontier, ++cm.doc.highlightFrontier); } + } + return line.styles + } + + function getContextBefore(cm, n, precise) { + var doc = cm.doc, display = cm.display; + if (!doc.mode.startState) { return new Context(doc, true, n) } + var start = findStartLine(cm, n, precise); + var saved = start > doc.first && getLine(doc, start - 1).stateAfter; + var context = saved ? Context.fromSaved(doc, saved, start) : new Context(doc, startState(doc.mode), start); + + doc.iter(start, n, function (line) { + processLine(cm, line.text, context); + var pos = context.line; + line.stateAfter = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo ? context.save() : null; + context.nextLine(); + }); + if (precise) { doc.modeFrontier = context.line; } + return context + } + + // Lightweight form of highlight -- proceed over this line and + // update state, but don't save a style array. Used for lines that + // aren't currently visible. + function processLine(cm, text, context, startAt) { + var mode = cm.doc.mode; + var stream = new StringStream(text, cm.options.tabSize, context); + stream.start = stream.pos = startAt || 0; + if (text == "") { callBlankLine(mode, context.state); } + while (!stream.eol()) { + readToken(mode, stream, context.state); + stream.start = stream.pos; + } + } + + function callBlankLine(mode, state) { + if (mode.blankLine) { return mode.blankLine(state) } + if (!mode.innerMode) { return } + var inner = innerMode(mode, state); + if (inner.mode.blankLine) { return inner.mode.blankLine(inner.state) } + } + + function readToken(mode, stream, state, inner) { + for (var i = 0; i < 10; i++) { + if (inner) { inner[0] = innerMode(mode, state).mode; } + var style = mode.token(stream, state); + if (stream.pos > stream.start) { return style } + } + throw new Error("Mode " + mode.name + " failed to advance stream.") + } + + var Token = function(stream, type, state) { + this.start = stream.start; this.end = stream.pos; + this.string = stream.current(); + this.type = type || null; + this.state = state; + }; + + // Utility for getTokenAt and getLineTokens + function takeToken(cm, pos, precise, asArray) { + var doc = cm.doc, mode = doc.mode, style; + pos = clipPos(doc, pos); + var line = getLine(doc, pos.line), context = getContextBefore(cm, pos.line, precise); + var stream = new StringStream(line.text, cm.options.tabSize, context), tokens; + if (asArray) { tokens = []; } + while ((asArray || stream.pos < pos.ch) && !stream.eol()) { + stream.start = stream.pos; + style = readToken(mode, stream, context.state); + if (asArray) { tokens.push(new Token(stream, style, copyState(doc.mode, context.state))); } + } + return asArray ? tokens : new Token(stream, style, context.state) + } + + function extractLineClasses(type, output) { + if (type) { for (;;) { + var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/); + if (!lineClass) { break } + type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length); + var prop = lineClass[1] ? "bgClass" : "textClass"; + if (output[prop] == null) + { output[prop] = lineClass[2]; } + else if (!(new RegExp("(?:^|\\s)" + lineClass[2] + "(?:$|\\s)")).test(output[prop])) + { output[prop] += " " + lineClass[2]; } + } } + return type + } + + // Run the given mode's parser over a line, calling f for each token. + function runMode(cm, text, mode, context, f, lineClasses, forceToEnd) { + var flattenSpans = mode.flattenSpans; + if (flattenSpans == null) { flattenSpans = cm.options.flattenSpans; } + var curStart = 0, curStyle = null; + var stream = new StringStream(text, cm.options.tabSize, context), style; + var inner = cm.options.addModeClass && [null]; + if (text == "") { extractLineClasses(callBlankLine(mode, context.state), lineClasses); } + while (!stream.eol()) { + if (stream.pos > cm.options.maxHighlightLength) { + flattenSpans = false; + if (forceToEnd) { processLine(cm, text, context, stream.pos); } + stream.pos = text.length; + style = null; + } else { + style = extractLineClasses(readToken(mode, stream, context.state, inner), lineClasses); + } + if (inner) { + var mName = inner[0].name; + if (mName) { style = "m-" + (style ? mName + " " + style : mName); } + } + if (!flattenSpans || curStyle != style) { + while (curStart < stream.start) { + curStart = Math.min(stream.start, curStart + 5000); + f(curStart, curStyle); + } + curStyle = style; + } + stream.start = stream.pos; + } + while (curStart < stream.pos) { + // Webkit seems to refuse to render text nodes longer than 57444 + // characters, and returns inaccurate measurements in nodes + // starting around 5000 chars. + var pos = Math.min(stream.pos, curStart + 5000); + f(pos, curStyle); + curStart = pos; + } + } + + // Finds the line to start with when starting a parse. Tries to + // find a line with a stateAfter, so that it can start with a + // valid state. If that fails, it returns the line with the + // smallest indentation, which tends to need the least context to + // parse correctly. + function findStartLine(cm, n, precise) { + var minindent, minline, doc = cm.doc; + var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100); + for (var search = n; search > lim; --search) { + if (search <= doc.first) { return doc.first } + var line = getLine(doc, search - 1), after = line.stateAfter; + if (after && (!precise || search + (after instanceof SavedContext ? after.lookAhead : 0) <= doc.modeFrontier)) + { return search } + var indented = countColumn(line.text, null, cm.options.tabSize); + if (minline == null || minindent > indented) { + minline = search - 1; + minindent = indented; + } + } + return minline + } + + function retreatFrontier(doc, n) { + doc.modeFrontier = Math.min(doc.modeFrontier, n); + if (doc.highlightFrontier < n - 10) { return } + var start = doc.first; + for (var line = n - 1; line > start; line--) { + var saved = getLine(doc, line).stateAfter; + // change is on 3 + // state on line 1 looked ahead 2 -- so saw 3 + // test 1 + 2 < 3 should cover this + if (saved && (!(saved instanceof SavedContext) || line + saved.lookAhead < n)) { + start = line + 1; + break + } + } + doc.highlightFrontier = Math.min(doc.highlightFrontier, start); + } + + // Optimize some code when these features are not used. + var sawReadOnlySpans = false, sawCollapsedSpans = false; + + function seeReadOnlySpans() { + sawReadOnlySpans = true; + } + + function seeCollapsedSpans() { + sawCollapsedSpans = true; + } + + // TEXTMARKER SPANS + + function MarkedSpan(marker, from, to) { + this.marker = marker; + this.from = from; this.to = to; + } + + // Search an array of spans for a span matching the given marker. + function getMarkedSpanFor(spans, marker) { + if (spans) { for (var i = 0; i < spans.length; ++i) { + var span = spans[i]; + if (span.marker == marker) { return span } + } } + } + // Remove a span from an array, returning undefined if no spans are + // left (we don't store arrays for lines without spans). + function removeMarkedSpan(spans, span) { + var r; + for (var i = 0; i < spans.length; ++i) + { if (spans[i] != span) { (r || (r = [])).push(spans[i]); } } + return r + } + // Add a span to a line. + function addMarkedSpan(line, span) { + line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span]; + span.marker.attachLine(line); + } + + // Used for the algorithm that adjusts markers for a change in the + // document. These functions cut an array of spans at a given + // character position, returning an array of remaining chunks (or + // undefined if nothing remains). + function markedSpansBefore(old, startCh, isInsert) { + var nw; + if (old) { for (var i = 0; i < old.length; ++i) { + var span = old[i], marker = span.marker; + var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh); + if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) { + var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh) + ;(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to)); + } + } } + return nw + } + function markedSpansAfter(old, endCh, isInsert) { + var nw; + if (old) { for (var i = 0; i < old.length; ++i) { + var span = old[i], marker = span.marker; + var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh); + if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) { + var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh) + ;(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh, + span.to == null ? null : span.to - endCh)); + } + } } + return nw + } + + // Given a change object, compute the new set of marker spans that + // cover the line in which the change took place. Removes spans + // entirely within the change, reconnects spans belonging to the + // same marker that appear on both sides of the change, and cuts off + // spans partially within the change. Returns an array of span + // arrays with one element for each line in (after) the change. + function stretchSpansOverChange(doc, change) { + if (change.full) { return null } + var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans; + var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans; + if (!oldFirst && !oldLast) { return null } + + var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0; + // Get the spans that 'stick out' on both sides + var first = markedSpansBefore(oldFirst, startCh, isInsert); + var last = markedSpansAfter(oldLast, endCh, isInsert); + + // Next, merge those two ends + var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0); + if (first) { + // Fix up .to properties of first + for (var i = 0; i < first.length; ++i) { + var span = first[i]; + if (span.to == null) { + var found = getMarkedSpanFor(last, span.marker); + if (!found) { span.to = startCh; } + else if (sameLine) { span.to = found.to == null ? null : found.to + offset; } + } + } + } + if (last) { + // Fix up .from in last (or move them into first in case of sameLine) + for (var i$1 = 0; i$1 < last.length; ++i$1) { + var span$1 = last[i$1]; + if (span$1.to != null) { span$1.to += offset; } + if (span$1.from == null) { + var found$1 = getMarkedSpanFor(first, span$1.marker); + if (!found$1) { + span$1.from = offset; + if (sameLine) { (first || (first = [])).push(span$1); } + } + } else { + span$1.from += offset; + if (sameLine) { (first || (first = [])).push(span$1); } + } + } + } + // Make sure we didn't create any zero-length spans + if (first) { first = clearEmptySpans(first); } + if (last && last != first) { last = clearEmptySpans(last); } + + var newMarkers = [first]; + if (!sameLine) { + // Fill gap with whole-line-spans + var gap = change.text.length - 2, gapMarkers; + if (gap > 0 && first) + { for (var i$2 = 0; i$2 < first.length; ++i$2) + { if (first[i$2].to == null) + { (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i$2].marker, null, null)); } } } + for (var i$3 = 0; i$3 < gap; ++i$3) + { newMarkers.push(gapMarkers); } + newMarkers.push(last); + } + return newMarkers + } + + // Remove spans that are empty and don't have a clearWhenEmpty + // option of false. + function clearEmptySpans(spans) { + for (var i = 0; i < spans.length; ++i) { + var span = spans[i]; + if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false) + { spans.splice(i--, 1); } + } + if (!spans.length) { return null } + return spans + } + + // Used to 'clip' out readOnly ranges when making a change. + function removeReadOnlyRanges(doc, from, to) { + var markers = null; + doc.iter(from.line, to.line + 1, function (line) { + if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) { + var mark = line.markedSpans[i].marker; + if (mark.readOnly && (!markers || indexOf(markers, mark) == -1)) + { (markers || (markers = [])).push(mark); } + } } + }); + if (!markers) { return null } + var parts = [{from: from, to: to}]; + for (var i = 0; i < markers.length; ++i) { + var mk = markers[i], m = mk.find(0); + for (var j = 0; j < parts.length; ++j) { + var p = parts[j]; + if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) { continue } + var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to); + if (dfrom < 0 || !mk.inclusiveLeft && !dfrom) + { newParts.push({from: p.from, to: m.from}); } + if (dto > 0 || !mk.inclusiveRight && !dto) + { newParts.push({from: m.to, to: p.to}); } + parts.splice.apply(parts, newParts); + j += newParts.length - 3; + } + } + return parts + } + + // Connect or disconnect spans from a line. + function detachMarkedSpans(line) { + var spans = line.markedSpans; + if (!spans) { return } + for (var i = 0; i < spans.length; ++i) + { spans[i].marker.detachLine(line); } + line.markedSpans = null; + } + function attachMarkedSpans(line, spans) { + if (!spans) { return } + for (var i = 0; i < spans.length; ++i) + { spans[i].marker.attachLine(line); } + line.markedSpans = spans; + } + + // Helpers used when computing which overlapping collapsed span + // counts as the larger one. + function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0 } + function extraRight(marker) { return marker.inclusiveRight ? 1 : 0 } + + // Returns a number indicating which of two overlapping collapsed + // spans is larger (and thus includes the other). Falls back to + // comparing ids when the spans cover exactly the same range. + function compareCollapsedMarkers(a, b) { + var lenDiff = a.lines.length - b.lines.length; + if (lenDiff != 0) { return lenDiff } + var aPos = a.find(), bPos = b.find(); + var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b); + if (fromCmp) { return -fromCmp } + var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b); + if (toCmp) { return toCmp } + return b.id - a.id + } + + // Find out whether a line ends or starts in a collapsed span. If + // so, return the marker for that span. + function collapsedSpanAtSide(line, start) { + var sps = sawCollapsedSpans && line.markedSpans, found; + if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) { + sp = sps[i]; + if (sp.marker.collapsed && (start ? sp.from : sp.to) == null && + (!found || compareCollapsedMarkers(found, sp.marker) < 0)) + { found = sp.marker; } + } } + return found + } + function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true) } + function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false) } + + function collapsedSpanAround(line, ch) { + var sps = sawCollapsedSpans && line.markedSpans, found; + if (sps) { for (var i = 0; i < sps.length; ++i) { + var sp = sps[i]; + if (sp.marker.collapsed && (sp.from == null || sp.from < ch) && (sp.to == null || sp.to > ch) && + (!found || compareCollapsedMarkers(found, sp.marker) < 0)) { found = sp.marker; } + } } + return found + } + + // Test whether there exists a collapsed span that partially + // overlaps (covers the start or end, but not both) of a new span. + // Such overlap is not allowed. + function conflictingCollapsedRange(doc, lineNo, from, to, marker) { + var line = getLine(doc, lineNo); + var sps = sawCollapsedSpans && line.markedSpans; + if (sps) { for (var i = 0; i < sps.length; ++i) { + var sp = sps[i]; + if (!sp.marker.collapsed) { continue } + var found = sp.marker.find(0); + var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker); + var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker); + if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) { continue } + if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) || + fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0)) + { return true } + } } + } + + // A visual line is a line as drawn on the screen. Folding, for + // example, can cause multiple logical lines to appear on the same + // visual line. This finds the start of the visual line that the + // given line is part of (usually that is the line itself). + function visualLine(line) { + var merged; + while (merged = collapsedSpanAtStart(line)) + { line = merged.find(-1, true).line; } + return line + } + + function visualLineEnd(line) { + var merged; + while (merged = collapsedSpanAtEnd(line)) + { line = merged.find(1, true).line; } + return line + } + + // Returns an array of logical lines that continue the visual line + // started by the argument, or undefined if there are no such lines. + function visualLineContinued(line) { + var merged, lines; + while (merged = collapsedSpanAtEnd(line)) { + line = merged.find(1, true).line + ;(lines || (lines = [])).push(line); + } + return lines + } + + // Get the line number of the start of the visual line that the + // given line number is part of. + function visualLineNo(doc, lineN) { + var line = getLine(doc, lineN), vis = visualLine(line); + if (line == vis) { return lineN } + return lineNo(vis) + } + + // Get the line number of the start of the next visual line after + // the given line. + function visualLineEndNo(doc, lineN) { + if (lineN > doc.lastLine()) { return lineN } + var line = getLine(doc, lineN), merged; + if (!lineIsHidden(doc, line)) { return lineN } + while (merged = collapsedSpanAtEnd(line)) + { line = merged.find(1, true).line; } + return lineNo(line) + 1 + } + + // Compute whether a line is hidden. Lines count as hidden when they + // are part of a visual line that starts with another line, or when + // they are entirely covered by collapsed, non-widget span. + function lineIsHidden(doc, line) { + var sps = sawCollapsedSpans && line.markedSpans; + if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) { + sp = sps[i]; + if (!sp.marker.collapsed) { continue } + if (sp.from == null) { return true } + if (sp.marker.widgetNode) { continue } + if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp)) + { return true } + } } + } + function lineIsHiddenInner(doc, line, span) { + if (span.to == null) { + var end = span.marker.find(1, true); + return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker)) + } + if (span.marker.inclusiveRight && span.to == line.text.length) + { return true } + for (var sp = (void 0), i = 0; i < line.markedSpans.length; ++i) { + sp = line.markedSpans[i]; + if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to && + (sp.to == null || sp.to != span.from) && + (sp.marker.inclusiveLeft || span.marker.inclusiveRight) && + lineIsHiddenInner(doc, line, sp)) { return true } + } + } + + // Find the height above the given line. + function heightAtLine(lineObj) { + lineObj = visualLine(lineObj); + + var h = 0, chunk = lineObj.parent; + for (var i = 0; i < chunk.lines.length; ++i) { + var line = chunk.lines[i]; + if (line == lineObj) { break } + else { h += line.height; } + } + for (var p = chunk.parent; p; chunk = p, p = chunk.parent) { + for (var i$1 = 0; i$1 < p.children.length; ++i$1) { + var cur = p.children[i$1]; + if (cur == chunk) { break } + else { h += cur.height; } + } + } + return h + } + + // Compute the character length of a line, taking into account + // collapsed ranges (see markText) that might hide parts, and join + // other lines onto it. + function lineLength(line) { + if (line.height == 0) { return 0 } + var len = line.text.length, merged, cur = line; + while (merged = collapsedSpanAtStart(cur)) { + var found = merged.find(0, true); + cur = found.from.line; + len += found.from.ch - found.to.ch; + } + cur = line; + while (merged = collapsedSpanAtEnd(cur)) { + var found$1 = merged.find(0, true); + len -= cur.text.length - found$1.from.ch; + cur = found$1.to.line; + len += cur.text.length - found$1.to.ch; + } + return len + } + + // Find the longest line in the document. + function findMaxLine(cm) { + var d = cm.display, doc = cm.doc; + d.maxLine = getLine(doc, doc.first); + d.maxLineLength = lineLength(d.maxLine); + d.maxLineChanged = true; + doc.iter(function (line) { + var len = lineLength(line); + if (len > d.maxLineLength) { + d.maxLineLength = len; + d.maxLine = line; + } + }); + } + + // LINE DATA STRUCTURE + + // Line objects. These hold state related to a line, including + // highlighting info (the styles array). + var Line = function(text, markedSpans, estimateHeight) { + this.text = text; + attachMarkedSpans(this, markedSpans); + this.height = estimateHeight ? estimateHeight(this) : 1; + }; + + Line.prototype.lineNo = function () { return lineNo(this) }; + eventMixin(Line); + + // Change the content (text, markers) of a line. Automatically + // invalidates cached information and tries to re-estimate the + // line's height. + function updateLine(line, text, markedSpans, estimateHeight) { + line.text = text; + if (line.stateAfter) { line.stateAfter = null; } + if (line.styles) { line.styles = null; } + if (line.order != null) { line.order = null; } + detachMarkedSpans(line); + attachMarkedSpans(line, markedSpans); + var estHeight = estimateHeight ? estimateHeight(line) : 1; + if (estHeight != line.height) { updateLineHeight(line, estHeight); } + } + + // Detach a line from the document tree and its markers. + function cleanUpLine(line) { + line.parent = null; + detachMarkedSpans(line); + } + + // Convert a style as returned by a mode (either null, or a string + // containing one or more styles) to a CSS style. This is cached, + // and also looks for line-wide styles. + var styleToClassCache = {}, styleToClassCacheWithMode = {}; + function interpretTokenStyle(style, options) { + if (!style || /^\s*$/.test(style)) { return null } + var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache; + return cache[style] || + (cache[style] = style.replace(/\S+/g, "cm-$&")) + } + + // Render the DOM representation of the text of a line. Also builds + // up a 'line map', which points at the DOM nodes that represent + // specific stretches of text, and is used by the measuring code. + // The returned object contains the DOM node, this map, and + // information about line-wide styles that were set by the mode. + function buildLineContent(cm, lineView) { + // The padding-right forces the element to have a 'border', which + // is needed on Webkit to be able to get line-level bounding + // rectangles for it (in measureChar). + var content = eltP("span", null, null, webkit ? "padding-right: .1px" : null); + var builder = {pre: eltP("pre", [content], "CodeMirror-line"), content: content, + col: 0, pos: 0, cm: cm, + trailingSpace: false, + splitSpaces: cm.getOption("lineWrapping")}; + lineView.measure = {}; + + // Iterate over the logical lines that make up this visual line. + for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) { + var line = i ? lineView.rest[i - 1] : lineView.line, order = (void 0); + builder.pos = 0; + builder.addToken = buildToken; + // Optionally wire in some hacks into the token-rendering + // algorithm, to deal with browser quirks. + if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line, cm.doc.direction))) + { builder.addToken = buildTokenBadBidi(builder.addToken, order); } + builder.map = []; + var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line); + insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate)); + if (line.styleClasses) { + if (line.styleClasses.bgClass) + { builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || ""); } + if (line.styleClasses.textClass) + { builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || ""); } + } + + // Ensure at least a single node is present, for measuring. + if (builder.map.length == 0) + { builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))); } + + // Store the map and a cache object for the current logical line + if (i == 0) { + lineView.measure.map = builder.map; + lineView.measure.cache = {}; + } else { + (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map) + ;(lineView.measure.caches || (lineView.measure.caches = [])).push({}); + } + } + + // See issue #2901 + if (webkit) { + var last = builder.content.lastChild; + if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab"))) + { builder.content.className = "cm-tab-wrap-hack"; } + } + + signal(cm, "renderLine", cm, lineView.line, builder.pre); + if (builder.pre.className) + { builder.textClass = joinClasses(builder.pre.className, builder.textClass || ""); } + + return builder + } + + function defaultSpecialCharPlaceholder(ch) { + var token = elt("span", "\u2022", "cm-invalidchar"); + token.title = "\\u" + ch.charCodeAt(0).toString(16); + token.setAttribute("aria-label", token.title); + return token + } + + // Build up the DOM representation for a single token, and add it to + // the line map. Takes care to render special characters separately. + function buildToken(builder, text, style, startStyle, endStyle, css, attributes) { + if (!text) { return } + var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text; + var special = builder.cm.state.specialChars, mustWrap = false; + var content; + if (!special.test(text)) { + builder.col += text.length; + content = document.createTextNode(displayText); + builder.map.push(builder.pos, builder.pos + text.length, content); + if (ie && ie_version < 9) { mustWrap = true; } + builder.pos += text.length; + } else { + content = document.createDocumentFragment(); + var pos = 0; + while (true) { + special.lastIndex = pos; + var m = special.exec(text); + var skipped = m ? m.index - pos : text.length - pos; + if (skipped) { + var txt = document.createTextNode(displayText.slice(pos, pos + skipped)); + if (ie && ie_version < 9) { content.appendChild(elt("span", [txt])); } + else { content.appendChild(txt); } + builder.map.push(builder.pos, builder.pos + skipped, txt); + builder.col += skipped; + builder.pos += skipped; + } + if (!m) { break } + pos += skipped + 1; + var txt$1 = (void 0); + if (m[0] == "\t") { + var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize; + txt$1 = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab")); + txt$1.setAttribute("role", "presentation"); + txt$1.setAttribute("cm-text", "\t"); + builder.col += tabWidth; + } else if (m[0] == "\r" || m[0] == "\n") { + txt$1 = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar")); + txt$1.setAttribute("cm-text", m[0]); + builder.col += 1; + } else { + txt$1 = builder.cm.options.specialCharPlaceholder(m[0]); + txt$1.setAttribute("cm-text", m[0]); + if (ie && ie_version < 9) { content.appendChild(elt("span", [txt$1])); } + else { content.appendChild(txt$1); } + builder.col += 1; + } + builder.map.push(builder.pos, builder.pos + 1, txt$1); + builder.pos++; + } + } + builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32; + if (style || startStyle || endStyle || mustWrap || css || attributes) { + var fullStyle = style || ""; + if (startStyle) { fullStyle += startStyle; } + if (endStyle) { fullStyle += endStyle; } + var token = elt("span", [content], fullStyle, css); + if (attributes) { + for (var attr in attributes) { if (attributes.hasOwnProperty(attr) && attr != "style" && attr != "class") + { token.setAttribute(attr, attributes[attr]); } } + } + return builder.content.appendChild(token) + } + builder.content.appendChild(content); + } + + // Change some spaces to NBSP to prevent the browser from collapsing + // trailing spaces at the end of a line when rendering text (issue #1362). + function splitSpaces(text, trailingBefore) { + if (text.length > 1 && !/ /.test(text)) { return text } + var spaceBefore = trailingBefore, result = ""; + for (var i = 0; i < text.length; i++) { + var ch = text.charAt(i); + if (ch == " " && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32)) + { ch = "\u00a0"; } + result += ch; + spaceBefore = ch == " "; + } + return result + } + + // Work around nonsense dimensions being reported for stretches of + // right-to-left text. + function buildTokenBadBidi(inner, order) { + return function (builder, text, style, startStyle, endStyle, css, attributes) { + style = style ? style + " cm-force-border" : "cm-force-border"; + var start = builder.pos, end = start + text.length; + for (;;) { + // Find the part that overlaps with the start of this text + var part = (void 0); + for (var i = 0; i < order.length; i++) { + part = order[i]; + if (part.to > start && part.from <= start) { break } + } + if (part.to >= end) { return inner(builder, text, style, startStyle, endStyle, css, attributes) } + inner(builder, text.slice(0, part.to - start), style, startStyle, null, css, attributes); + startStyle = null; + text = text.slice(part.to - start); + start = part.to; + } + } + } + + function buildCollapsedSpan(builder, size, marker, ignoreWidget) { + var widget = !ignoreWidget && marker.widgetNode; + if (widget) { builder.map.push(builder.pos, builder.pos + size, widget); } + if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) { + if (!widget) + { widget = builder.content.appendChild(document.createElement("span")); } + widget.setAttribute("cm-marker", marker.id); + } + if (widget) { + builder.cm.display.input.setUneditable(widget); + builder.content.appendChild(widget); + } + builder.pos += size; + builder.trailingSpace = false; + } + + // Outputs a number of spans to make up a line, taking highlighting + // and marked text into account. + function insertLineContent(line, builder, styles) { + var spans = line.markedSpans, allText = line.text, at = 0; + if (!spans) { + for (var i$1 = 1; i$1 < styles.length; i$1+=2) + { builder.addToken(builder, allText.slice(at, at = styles[i$1]), interpretTokenStyle(styles[i$1+1], builder.cm.options)); } + return + } + + var len = allText.length, pos = 0, i = 1, text = "", style, css; + var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, collapsed, attributes; + for (;;) { + if (nextChange == pos) { // Update current marker set + spanStyle = spanEndStyle = spanStartStyle = css = ""; + attributes = null; + collapsed = null; nextChange = Infinity; + var foundBookmarks = [], endStyles = (void 0); + for (var j = 0; j < spans.length; ++j) { + var sp = spans[j], m = sp.marker; + if (m.type == "bookmark" && sp.from == pos && m.widgetNode) { + foundBookmarks.push(m); + } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) { + if (sp.to != null && sp.to != pos && nextChange > sp.to) { + nextChange = sp.to; + spanEndStyle = ""; + } + if (m.className) { spanStyle += " " + m.className; } + if (m.css) { css = (css ? css + ";" : "") + m.css; } + if (m.startStyle && sp.from == pos) { spanStartStyle += " " + m.startStyle; } + if (m.endStyle && sp.to == nextChange) { (endStyles || (endStyles = [])).push(m.endStyle, sp.to); } + // support for the old title property + // https://github.com/codemirror/CodeMirror/pull/5673 + if (m.title) { (attributes || (attributes = {})).title = m.title; } + if (m.attributes) { + for (var attr in m.attributes) + { (attributes || (attributes = {}))[attr] = m.attributes[attr]; } + } + if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0)) + { collapsed = sp; } + } else if (sp.from > pos && nextChange > sp.from) { + nextChange = sp.from; + } + } + if (endStyles) { for (var j$1 = 0; j$1 < endStyles.length; j$1 += 2) + { if (endStyles[j$1 + 1] == nextChange) { spanEndStyle += " " + endStyles[j$1]; } } } + + if (!collapsed || collapsed.from == pos) { for (var j$2 = 0; j$2 < foundBookmarks.length; ++j$2) + { buildCollapsedSpan(builder, 0, foundBookmarks[j$2]); } } + if (collapsed && (collapsed.from || 0) == pos) { + buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos, + collapsed.marker, collapsed.from == null); + if (collapsed.to == null) { return } + if (collapsed.to == pos) { collapsed = false; } + } + } + if (pos >= len) { break } + + var upto = Math.min(len, nextChange); + while (true) { + if (text) { + var end = pos + text.length; + if (!collapsed) { + var tokenText = end > upto ? text.slice(0, upto - pos) : text; + builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle, + spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", css, attributes); + } + if (end >= upto) {text = text.slice(upto - pos); pos = upto; break} + pos = end; + spanStartStyle = ""; + } + text = allText.slice(at, at = styles[i++]); + style = interpretTokenStyle(styles[i++], builder.cm.options); + } + } + } + + + // These objects are used to represent the visible (currently drawn) + // part of the document. A LineView may correspond to multiple + // logical lines, if those are connected by collapsed ranges. + function LineView(doc, line, lineN) { + // The starting line + this.line = line; + // Continuing lines, if any + this.rest = visualLineContinued(line); + // Number of logical lines in this visual line + this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1; + this.node = this.text = null; + this.hidden = lineIsHidden(doc, line); + } + + // Create a range of LineView objects for the given lines. + function buildViewArray(cm, from, to) { + var array = [], nextPos; + for (var pos = from; pos < to; pos = nextPos) { + var view = new LineView(cm.doc, getLine(cm.doc, pos), pos); + nextPos = pos + view.size; + array.push(view); + } + return array + } + + var operationGroup = null; + + function pushOperation(op) { + if (operationGroup) { + operationGroup.ops.push(op); + } else { + op.ownsGroup = operationGroup = { + ops: [op], + delayedCallbacks: [] + }; + } + } + + function fireCallbacksForOps(group) { + // Calls delayed callbacks and cursorActivity handlers until no + // new ones appear + var callbacks = group.delayedCallbacks, i = 0; + do { + for (; i < callbacks.length; i++) + { callbacks[i].call(null); } + for (var j = 0; j < group.ops.length; j++) { + var op = group.ops[j]; + if (op.cursorActivityHandlers) + { while (op.cursorActivityCalled < op.cursorActivityHandlers.length) + { op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm); } } + } + } while (i < callbacks.length) + } + + function finishOperation(op, endCb) { + var group = op.ownsGroup; + if (!group) { return } + + try { fireCallbacksForOps(group); } + finally { + operationGroup = null; + endCb(group); + } + } + + var orphanDelayedCallbacks = null; + + // Often, we want to signal events at a point where we are in the + // middle of some work, but don't want the handler to start calling + // other methods on the editor, which might be in an inconsistent + // state or simply not expect any other events to happen. + // signalLater looks whether there are any handlers, and schedules + // them to be executed when the last operation ends, or, if no + // operation is active, when a timeout fires. + function signalLater(emitter, type /*, values...*/) { + var arr = getHandlers(emitter, type); + if (!arr.length) { return } + var args = Array.prototype.slice.call(arguments, 2), list; + if (operationGroup) { + list = operationGroup.delayedCallbacks; + } else if (orphanDelayedCallbacks) { + list = orphanDelayedCallbacks; + } else { + list = orphanDelayedCallbacks = []; + setTimeout(fireOrphanDelayed, 0); + } + var loop = function ( i ) { + list.push(function () { return arr[i].apply(null, args); }); + }; + + for (var i = 0; i < arr.length; ++i) + loop( i ); + } + + function fireOrphanDelayed() { + var delayed = orphanDelayedCallbacks; + orphanDelayedCallbacks = null; + for (var i = 0; i < delayed.length; ++i) { delayed[i](); } + } + + // When an aspect of a line changes, a string is added to + // lineView.changes. This updates the relevant part of the line's + // DOM structure. + function updateLineForChanges(cm, lineView, lineN, dims) { + for (var j = 0; j < lineView.changes.length; j++) { + var type = lineView.changes[j]; + if (type == "text") { updateLineText(cm, lineView); } + else if (type == "gutter") { updateLineGutter(cm, lineView, lineN, dims); } + else if (type == "class") { updateLineClasses(cm, lineView); } + else if (type == "widget") { updateLineWidgets(cm, lineView, dims); } + } + lineView.changes = null; + } + + // Lines with gutter elements, widgets or a background class need to + // be wrapped, and have the extra elements added to the wrapper div + function ensureLineWrapped(lineView) { + if (lineView.node == lineView.text) { + lineView.node = elt("div", null, null, "position: relative"); + if (lineView.text.parentNode) + { lineView.text.parentNode.replaceChild(lineView.node, lineView.text); } + lineView.node.appendChild(lineView.text); + if (ie && ie_version < 8) { lineView.node.style.zIndex = 2; } + } + return lineView.node + } + + function updateLineBackground(cm, lineView) { + var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass; + if (cls) { cls += " CodeMirror-linebackground"; } + if (lineView.background) { + if (cls) { lineView.background.className = cls; } + else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; } + } else if (cls) { + var wrap = ensureLineWrapped(lineView); + lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild); + cm.display.input.setUneditable(lineView.background); + } + } + + // Wrapper around buildLineContent which will reuse the structure + // in display.externalMeasured when possible. + function getLineContent(cm, lineView) { + var ext = cm.display.externalMeasured; + if (ext && ext.line == lineView.line) { + cm.display.externalMeasured = null; + lineView.measure = ext.measure; + return ext.built + } + return buildLineContent(cm, lineView) + } + + // Redraw the line's text. Interacts with the background and text + // classes because the mode may output tokens that influence these + // classes. + function updateLineText(cm, lineView) { + var cls = lineView.text.className; + var built = getLineContent(cm, lineView); + if (lineView.text == lineView.node) { lineView.node = built.pre; } + lineView.text.parentNode.replaceChild(built.pre, lineView.text); + lineView.text = built.pre; + if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) { + lineView.bgClass = built.bgClass; + lineView.textClass = built.textClass; + updateLineClasses(cm, lineView); + } else if (cls) { + lineView.text.className = cls; + } + } + + function updateLineClasses(cm, lineView) { + updateLineBackground(cm, lineView); + if (lineView.line.wrapClass) + { ensureLineWrapped(lineView).className = lineView.line.wrapClass; } + else if (lineView.node != lineView.text) + { lineView.node.className = ""; } + var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass; + lineView.text.className = textClass || ""; + } + + function updateLineGutter(cm, lineView, lineN, dims) { + if (lineView.gutter) { + lineView.node.removeChild(lineView.gutter); + lineView.gutter = null; + } + if (lineView.gutterBackground) { + lineView.node.removeChild(lineView.gutterBackground); + lineView.gutterBackground = null; + } + if (lineView.line.gutterClass) { + var wrap = ensureLineWrapped(lineView); + lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass, + ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px; width: " + (dims.gutterTotalWidth) + "px")); + cm.display.input.setUneditable(lineView.gutterBackground); + wrap.insertBefore(lineView.gutterBackground, lineView.text); + } + var markers = lineView.line.gutterMarkers; + if (cm.options.lineNumbers || markers) { + var wrap$1 = ensureLineWrapped(lineView); + var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px")); + cm.display.input.setUneditable(gutterWrap); + wrap$1.insertBefore(gutterWrap, lineView.text); + if (lineView.line.gutterClass) + { gutterWrap.className += " " + lineView.line.gutterClass; } + if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"])) + { lineView.lineNumber = gutterWrap.appendChild( + elt("div", lineNumberFor(cm.options, lineN), + "CodeMirror-linenumber CodeMirror-gutter-elt", + ("left: " + (dims.gutterLeft["CodeMirror-linenumbers"]) + "px; width: " + (cm.display.lineNumInnerWidth) + "px"))); } + if (markers) { for (var k = 0; k < cm.display.gutterSpecs.length; ++k) { + var id = cm.display.gutterSpecs[k].className, found = markers.hasOwnProperty(id) && markers[id]; + if (found) + { gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt", + ("left: " + (dims.gutterLeft[id]) + "px; width: " + (dims.gutterWidth[id]) + "px"))); } + } } + } + } + + function updateLineWidgets(cm, lineView, dims) { + if (lineView.alignable) { lineView.alignable = null; } + var isWidget = classTest("CodeMirror-linewidget"); + for (var node = lineView.node.firstChild, next = (void 0); node; node = next) { + next = node.nextSibling; + if (isWidget.test(node.className)) { lineView.node.removeChild(node); } + } + insertLineWidgets(cm, lineView, dims); + } + + // Build a line's DOM representation from scratch + function buildLineElement(cm, lineView, lineN, dims) { + var built = getLineContent(cm, lineView); + lineView.text = lineView.node = built.pre; + if (built.bgClass) { lineView.bgClass = built.bgClass; } + if (built.textClass) { lineView.textClass = built.textClass; } + + updateLineClasses(cm, lineView); + updateLineGutter(cm, lineView, lineN, dims); + insertLineWidgets(cm, lineView, dims); + return lineView.node + } + + // A lineView may contain multiple logical lines (when merged by + // collapsed spans). The widgets for all of them need to be drawn. + function insertLineWidgets(cm, lineView, dims) { + insertLineWidgetsFor(cm, lineView.line, lineView, dims, true); + if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++) + { insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false); } } + } + + function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) { + if (!line.widgets) { return } + var wrap = ensureLineWrapped(lineView); + for (var i = 0, ws = line.widgets; i < ws.length; ++i) { + var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget" + (widget.className ? " " + widget.className : "")); + if (!widget.handleMouseEvents) { node.setAttribute("cm-ignore-events", "true"); } + positionLineWidget(widget, node, lineView, dims); + cm.display.input.setUneditable(node); + if (allowAbove && widget.above) + { wrap.insertBefore(node, lineView.gutter || lineView.text); } + else + { wrap.appendChild(node); } + signalLater(widget, "redraw"); + } + } + + function positionLineWidget(widget, node, lineView, dims) { + if (widget.noHScroll) { + (lineView.alignable || (lineView.alignable = [])).push(node); + var width = dims.wrapperWidth; + node.style.left = dims.fixedPos + "px"; + if (!widget.coverGutter) { + width -= dims.gutterTotalWidth; + node.style.paddingLeft = dims.gutterTotalWidth + "px"; + } + node.style.width = width + "px"; + } + if (widget.coverGutter) { + node.style.zIndex = 5; + node.style.position = "relative"; + if (!widget.noHScroll) { node.style.marginLeft = -dims.gutterTotalWidth + "px"; } + } + } + + function widgetHeight(widget) { + if (widget.height != null) { return widget.height } + var cm = widget.doc.cm; + if (!cm) { return 0 } + if (!contains(document.body, widget.node)) { + var parentStyle = "position: relative;"; + if (widget.coverGutter) + { parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;"; } + if (widget.noHScroll) + { parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;"; } + removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle)); + } + return widget.height = widget.node.parentNode.offsetHeight + } + + // Return true when the given mouse event happened in a widget + function eventInWidget(display, e) { + for (var n = e_target(e); n != display.wrapper; n = n.parentNode) { + if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") || + (n.parentNode == display.sizer && n != display.mover)) + { return true } + } + } + + // POSITION MEASUREMENT + + function paddingTop(display) {return display.lineSpace.offsetTop} + function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight} + function paddingH(display) { + if (display.cachedPaddingH) { return display.cachedPaddingH } + var e = removeChildrenAndAdd(display.measure, elt("pre", "x", "CodeMirror-line-like")); + var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle; + var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)}; + if (!isNaN(data.left) && !isNaN(data.right)) { display.cachedPaddingH = data; } + return data + } + + function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth } + function displayWidth(cm) { + return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth + } + function displayHeight(cm) { + return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight + } + + // Ensure the lineView.wrapping.heights array is populated. This is + // an array of bottom offsets for the lines that make up a drawn + // line. When lineWrapping is on, there might be more than one + // height. + function ensureLineHeights(cm, lineView, rect) { + var wrapping = cm.options.lineWrapping; + var curWidth = wrapping && displayWidth(cm); + if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) { + var heights = lineView.measure.heights = []; + if (wrapping) { + lineView.measure.width = curWidth; + var rects = lineView.text.firstChild.getClientRects(); + for (var i = 0; i < rects.length - 1; i++) { + var cur = rects[i], next = rects[i + 1]; + if (Math.abs(cur.bottom - next.bottom) > 2) + { heights.push((cur.bottom + next.top) / 2 - rect.top); } + } + } + heights.push(rect.bottom - rect.top); + } + } + + // Find a line map (mapping character offsets to text nodes) and a + // measurement cache for the given line number. (A line view might + // contain multiple lines when collapsed ranges are present.) + function mapFromLineView(lineView, line, lineN) { + if (lineView.line == line) + { return {map: lineView.measure.map, cache: lineView.measure.cache} } + for (var i = 0; i < lineView.rest.length; i++) + { if (lineView.rest[i] == line) + { return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]} } } + for (var i$1 = 0; i$1 < lineView.rest.length; i$1++) + { if (lineNo(lineView.rest[i$1]) > lineN) + { return {map: lineView.measure.maps[i$1], cache: lineView.measure.caches[i$1], before: true} } } + } + + // Render a line into the hidden node display.externalMeasured. Used + // when measurement is needed for a line that's not in the viewport. + function updateExternalMeasurement(cm, line) { + line = visualLine(line); + var lineN = lineNo(line); + var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN); + view.lineN = lineN; + var built = view.built = buildLineContent(cm, view); + view.text = built.pre; + removeChildrenAndAdd(cm.display.lineMeasure, built.pre); + return view + } + + // Get a {top, bottom, left, right} box (in line-local coordinates) + // for a given character. + function measureChar(cm, line, ch, bias) { + return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias) + } + + // Find a line view that corresponds to the given line number. + function findViewForLine(cm, lineN) { + if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo) + { return cm.display.view[findViewIndex(cm, lineN)] } + var ext = cm.display.externalMeasured; + if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size) + { return ext } + } + + // Measurement can be split in two steps, the set-up work that + // applies to the whole line, and the measurement of the actual + // character. Functions like coordsChar, that need to do a lot of + // measurements in a row, can thus ensure that the set-up work is + // only done once. + function prepareMeasureForLine(cm, line) { + var lineN = lineNo(line); + var view = findViewForLine(cm, lineN); + if (view && !view.text) { + view = null; + } else if (view && view.changes) { + updateLineForChanges(cm, view, lineN, getDimensions(cm)); + cm.curOp.forceUpdate = true; + } + if (!view) + { view = updateExternalMeasurement(cm, line); } + + var info = mapFromLineView(view, line, lineN); + return { + line: line, view: view, rect: null, + map: info.map, cache: info.cache, before: info.before, + hasHeights: false + } + } + + // Given a prepared measurement object, measures the position of an + // actual character (or fetches it from the cache). + function measureCharPrepared(cm, prepared, ch, bias, varHeight) { + if (prepared.before) { ch = -1; } + var key = ch + (bias || ""), found; + if (prepared.cache.hasOwnProperty(key)) { + found = prepared.cache[key]; + } else { + if (!prepared.rect) + { prepared.rect = prepared.view.text.getBoundingClientRect(); } + if (!prepared.hasHeights) { + ensureLineHeights(cm, prepared.view, prepared.rect); + prepared.hasHeights = true; + } + found = measureCharInner(cm, prepared, ch, bias); + if (!found.bogus) { prepared.cache[key] = found; } + } + return {left: found.left, right: found.right, + top: varHeight ? found.rtop : found.top, + bottom: varHeight ? found.rbottom : found.bottom} + } + + var nullRect = {left: 0, right: 0, top: 0, bottom: 0}; + + function nodeAndOffsetInLineMap(map, ch, bias) { + var node, start, end, collapse, mStart, mEnd; + // First, search the line map for the text node corresponding to, + // or closest to, the target character. + for (var i = 0; i < map.length; i += 3) { + mStart = map[i]; + mEnd = map[i + 1]; + if (ch < mStart) { + start = 0; end = 1; + collapse = "left"; + } else if (ch < mEnd) { + start = ch - mStart; + end = start + 1; + } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) { + end = mEnd - mStart; + start = end - 1; + if (ch >= mEnd) { collapse = "right"; } + } + if (start != null) { + node = map[i + 2]; + if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right")) + { collapse = bias; } + if (bias == "left" && start == 0) + { while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) { + node = map[(i -= 3) + 2]; + collapse = "left"; + } } + if (bias == "right" && start == mEnd - mStart) + { while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) { + node = map[(i += 3) + 2]; + collapse = "right"; + } } + break + } + } + return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd} + } + + function getUsefulRect(rects, bias) { + var rect = nullRect; + if (bias == "left") { for (var i = 0; i < rects.length; i++) { + if ((rect = rects[i]).left != rect.right) { break } + } } else { for (var i$1 = rects.length - 1; i$1 >= 0; i$1--) { + if ((rect = rects[i$1]).left != rect.right) { break } + } } + return rect + } + + function measureCharInner(cm, prepared, ch, bias) { + var place = nodeAndOffsetInLineMap(prepared.map, ch, bias); + var node = place.node, start = place.start, end = place.end, collapse = place.collapse; + + var rect; + if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates. + for (var i$1 = 0; i$1 < 4; i$1++) { // Retry a maximum of 4 times when nonsense rectangles are returned + while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) { --start; } + while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) { ++end; } + if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart) + { rect = node.parentNode.getBoundingClientRect(); } + else + { rect = getUsefulRect(range(node, start, end).getClientRects(), bias); } + if (rect.left || rect.right || start == 0) { break } + end = start; + start = start - 1; + collapse = "right"; + } + if (ie && ie_version < 11) { rect = maybeUpdateRectForZooming(cm.display.measure, rect); } + } else { // If it is a widget, simply get the box for the whole widget. + if (start > 0) { collapse = bias = "right"; } + var rects; + if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1) + { rect = rects[bias == "right" ? rects.length - 1 : 0]; } + else + { rect = node.getBoundingClientRect(); } + } + if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) { + var rSpan = node.parentNode.getClientRects()[0]; + if (rSpan) + { rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom}; } + else + { rect = nullRect; } + } + + var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top; + var mid = (rtop + rbot) / 2; + var heights = prepared.view.measure.heights; + var i = 0; + for (; i < heights.length - 1; i++) + { if (mid < heights[i]) { break } } + var top = i ? heights[i - 1] : 0, bot = heights[i]; + var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left, + right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left, + top: top, bottom: bot}; + if (!rect.left && !rect.right) { result.bogus = true; } + if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; } + + return result + } + + // Work around problem with bounding client rects on ranges being + // returned incorrectly when zoomed on IE10 and below. + function maybeUpdateRectForZooming(measure, rect) { + if (!window.screen || screen.logicalXDPI == null || + screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure)) + { return rect } + var scaleX = screen.logicalXDPI / screen.deviceXDPI; + var scaleY = screen.logicalYDPI / screen.deviceYDPI; + return {left: rect.left * scaleX, right: rect.right * scaleX, + top: rect.top * scaleY, bottom: rect.bottom * scaleY} + } + + function clearLineMeasurementCacheFor(lineView) { + if (lineView.measure) { + lineView.measure.cache = {}; + lineView.measure.heights = null; + if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++) + { lineView.measure.caches[i] = {}; } } + } + } + + function clearLineMeasurementCache(cm) { + cm.display.externalMeasure = null; + removeChildren(cm.display.lineMeasure); + for (var i = 0; i < cm.display.view.length; i++) + { clearLineMeasurementCacheFor(cm.display.view[i]); } + } + + function clearCaches(cm) { + clearLineMeasurementCache(cm); + cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null; + if (!cm.options.lineWrapping) { cm.display.maxLineChanged = true; } + cm.display.lineNumChars = null; + } + + function pageScrollX() { + // Work around https://bugs.chromium.org/p/chromium/issues/detail?id=489206 + // which causes page_Offset and bounding client rects to use + // different reference viewports and invalidate our calculations. + if (chrome && android) { return -(document.body.getBoundingClientRect().left - parseInt(getComputedStyle(document.body).marginLeft)) } + return window.pageXOffset || (document.documentElement || document.body).scrollLeft + } + function pageScrollY() { + if (chrome && android) { return -(document.body.getBoundingClientRect().top - parseInt(getComputedStyle(document.body).marginTop)) } + return window.pageYOffset || (document.documentElement || document.body).scrollTop + } + + function widgetTopHeight(lineObj) { + var height = 0; + if (lineObj.widgets) { for (var i = 0; i < lineObj.widgets.length; ++i) { if (lineObj.widgets[i].above) + { height += widgetHeight(lineObj.widgets[i]); } } } + return height + } + + // Converts a {top, bottom, left, right} box from line-local + // coordinates into another coordinate system. Context may be one of + // "line", "div" (display.lineDiv), "local"./null (editor), "window", + // or "page". + function intoCoordSystem(cm, lineObj, rect, context, includeWidgets) { + if (!includeWidgets) { + var height = widgetTopHeight(lineObj); + rect.top += height; rect.bottom += height; + } + if (context == "line") { return rect } + if (!context) { context = "local"; } + var yOff = heightAtLine(lineObj); + if (context == "local") { yOff += paddingTop(cm.display); } + else { yOff -= cm.display.viewOffset; } + if (context == "page" || context == "window") { + var lOff = cm.display.lineSpace.getBoundingClientRect(); + yOff += lOff.top + (context == "window" ? 0 : pageScrollY()); + var xOff = lOff.left + (context == "window" ? 0 : pageScrollX()); + rect.left += xOff; rect.right += xOff; + } + rect.top += yOff; rect.bottom += yOff; + return rect + } + + // Coverts a box from "div" coords to another coordinate system. + // Context may be "window", "page", "div", or "local"./null. + function fromCoordSystem(cm, coords, context) { + if (context == "div") { return coords } + var left = coords.left, top = coords.top; + // First move into "page" coordinate system + if (context == "page") { + left -= pageScrollX(); + top -= pageScrollY(); + } else if (context == "local" || !context) { + var localBox = cm.display.sizer.getBoundingClientRect(); + left += localBox.left; + top += localBox.top; + } + + var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect(); + return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top} + } + + function charCoords(cm, pos, context, lineObj, bias) { + if (!lineObj) { lineObj = getLine(cm.doc, pos.line); } + return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context) + } + + // Returns a box for a given cursor position, which may have an + // 'other' property containing the position of the secondary cursor + // on a bidi boundary. + // A cursor Pos(line, char, "before") is on the same visual line as `char - 1` + // and after `char - 1` in writing order of `char - 1` + // A cursor Pos(line, char, "after") is on the same visual line as `char` + // and before `char` in writing order of `char` + // Examples (upper-case letters are RTL, lower-case are LTR): + // Pos(0, 1, ...) + // before after + // ab a|b a|b + // aB a|B aB| + // Ab |Ab A|b + // AB B|A B|A + // Every position after the last character on a line is considered to stick + // to the last character on the line. + function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) { + lineObj = lineObj || getLine(cm.doc, pos.line); + if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); } + function get(ch, right) { + var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight); + if (right) { m.left = m.right; } else { m.right = m.left; } + return intoCoordSystem(cm, lineObj, m, context) + } + var order = getOrder(lineObj, cm.doc.direction), ch = pos.ch, sticky = pos.sticky; + if (ch >= lineObj.text.length) { + ch = lineObj.text.length; + sticky = "before"; + } else if (ch <= 0) { + ch = 0; + sticky = "after"; + } + if (!order) { return get(sticky == "before" ? ch - 1 : ch, sticky == "before") } + + function getBidi(ch, partPos, invert) { + var part = order[partPos], right = part.level == 1; + return get(invert ? ch - 1 : ch, right != invert) + } + var partPos = getBidiPartAt(order, ch, sticky); + var other = bidiOther; + var val = getBidi(ch, partPos, sticky == "before"); + if (other != null) { val.other = getBidi(ch, other, sticky != "before"); } + return val + } + + // Used to cheaply estimate the coordinates for a position. Used for + // intermediate scroll updates. + function estimateCoords(cm, pos) { + var left = 0; + pos = clipPos(cm.doc, pos); + if (!cm.options.lineWrapping) { left = charWidth(cm.display) * pos.ch; } + var lineObj = getLine(cm.doc, pos.line); + var top = heightAtLine(lineObj) + paddingTop(cm.display); + return {left: left, right: left, top: top, bottom: top + lineObj.height} + } + + // Positions returned by coordsChar contain some extra information. + // xRel is the relative x position of the input coordinates compared + // to the found position (so xRel > 0 means the coordinates are to + // the right of the character position, for example). When outside + // is true, that means the coordinates lie outside the line's + // vertical range. + function PosWithInfo(line, ch, sticky, outside, xRel) { + var pos = Pos(line, ch, sticky); + pos.xRel = xRel; + if (outside) { pos.outside = outside; } + return pos + } + + // Compute the character position closest to the given coordinates. + // Input must be lineSpace-local ("div" coordinate system). + function coordsChar(cm, x, y) { + var doc = cm.doc; + y += cm.display.viewOffset; + if (y < 0) { return PosWithInfo(doc.first, 0, null, -1, -1) } + var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1; + if (lineN > last) + { return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, null, 1, 1) } + if (x < 0) { x = 0; } + + var lineObj = getLine(doc, lineN); + for (;;) { + var found = coordsCharInner(cm, lineObj, lineN, x, y); + var collapsed = collapsedSpanAround(lineObj, found.ch + (found.xRel > 0 || found.outside > 0 ? 1 : 0)); + if (!collapsed) { return found } + var rangeEnd = collapsed.find(1); + if (rangeEnd.line == lineN) { return rangeEnd } + lineObj = getLine(doc, lineN = rangeEnd.line); + } + } + + function wrappedLineExtent(cm, lineObj, preparedMeasure, y) { + y -= widgetTopHeight(lineObj); + var end = lineObj.text.length; + var begin = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch - 1).bottom <= y; }, end, 0); + end = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch).top > y; }, begin, end); + return {begin: begin, end: end} + } + + function wrappedLineExtentChar(cm, lineObj, preparedMeasure, target) { + if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); } + var targetTop = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, target), "line").top; + return wrappedLineExtent(cm, lineObj, preparedMeasure, targetTop) + } + + // Returns true if the given side of a box is after the given + // coordinates, in top-to-bottom, left-to-right order. + function boxIsAfter(box, x, y, left) { + return box.bottom <= y ? false : box.top > y ? true : (left ? box.left : box.right) > x + } + + function coordsCharInner(cm, lineObj, lineNo, x, y) { + // Move y into line-local coordinate space + y -= heightAtLine(lineObj); + var preparedMeasure = prepareMeasureForLine(cm, lineObj); + // When directly calling `measureCharPrepared`, we have to adjust + // for the widgets at this line. + var widgetHeight = widgetTopHeight(lineObj); + var begin = 0, end = lineObj.text.length, ltr = true; + + var order = getOrder(lineObj, cm.doc.direction); + // If the line isn't plain left-to-right text, first figure out + // which bidi section the coordinates fall into. + if (order) { + var part = (cm.options.lineWrapping ? coordsBidiPartWrapped : coordsBidiPart) + (cm, lineObj, lineNo, preparedMeasure, order, x, y); + ltr = part.level != 1; + // The awkward -1 offsets are needed because findFirst (called + // on these below) will treat its first bound as inclusive, + // second as exclusive, but we want to actually address the + // characters in the part's range + begin = ltr ? part.from : part.to - 1; + end = ltr ? part.to : part.from - 1; + } + + // A binary search to find the first character whose bounding box + // starts after the coordinates. If we run across any whose box wrap + // the coordinates, store that. + var chAround = null, boxAround = null; + var ch = findFirst(function (ch) { + var box = measureCharPrepared(cm, preparedMeasure, ch); + box.top += widgetHeight; box.bottom += widgetHeight; + if (!boxIsAfter(box, x, y, false)) { return false } + if (box.top <= y && box.left <= x) { + chAround = ch; + boxAround = box; + } + return true + }, begin, end); + + var baseX, sticky, outside = false; + // If a box around the coordinates was found, use that + if (boxAround) { + // Distinguish coordinates nearer to the left or right side of the box + var atLeft = x - boxAround.left < boxAround.right - x, atStart = atLeft == ltr; + ch = chAround + (atStart ? 0 : 1); + sticky = atStart ? "after" : "before"; + baseX = atLeft ? boxAround.left : boxAround.right; + } else { + // (Adjust for extended bound, if necessary.) + if (!ltr && (ch == end || ch == begin)) { ch++; } + // To determine which side to associate with, get the box to the + // left of the character and compare it's vertical position to the + // coordinates + sticky = ch == 0 ? "after" : ch == lineObj.text.length ? "before" : + (measureCharPrepared(cm, preparedMeasure, ch - (ltr ? 1 : 0)).bottom + widgetHeight <= y) == ltr ? + "after" : "before"; + // Now get accurate coordinates for this place, in order to get a + // base X position + var coords = cursorCoords(cm, Pos(lineNo, ch, sticky), "line", lineObj, preparedMeasure); + baseX = coords.left; + outside = y < coords.top ? -1 : y >= coords.bottom ? 1 : 0; + } + + ch = skipExtendingChars(lineObj.text, ch, 1); + return PosWithInfo(lineNo, ch, sticky, outside, x - baseX) + } + + function coordsBidiPart(cm, lineObj, lineNo, preparedMeasure, order, x, y) { + // Bidi parts are sorted left-to-right, and in a non-line-wrapping + // situation, we can take this ordering to correspond to the visual + // ordering. This finds the first part whose end is after the given + // coordinates. + var index = findFirst(function (i) { + var part = order[i], ltr = part.level != 1; + return boxIsAfter(cursorCoords(cm, Pos(lineNo, ltr ? part.to : part.from, ltr ? "before" : "after"), + "line", lineObj, preparedMeasure), x, y, true) + }, 0, order.length - 1); + var part = order[index]; + // If this isn't the first part, the part's start is also after + // the coordinates, and the coordinates aren't on the same line as + // that start, move one part back. + if (index > 0) { + var ltr = part.level != 1; + var start = cursorCoords(cm, Pos(lineNo, ltr ? part.from : part.to, ltr ? "after" : "before"), + "line", lineObj, preparedMeasure); + if (boxIsAfter(start, x, y, true) && start.top > y) + { part = order[index - 1]; } + } + return part + } + + function coordsBidiPartWrapped(cm, lineObj, _lineNo, preparedMeasure, order, x, y) { + // In a wrapped line, rtl text on wrapping boundaries can do things + // that don't correspond to the ordering in our `order` array at + // all, so a binary search doesn't work, and we want to return a + // part that only spans one line so that the binary search in + // coordsCharInner is safe. As such, we first find the extent of the + // wrapped line, and then do a flat search in which we discard any + // spans that aren't on the line. + var ref = wrappedLineExtent(cm, lineObj, preparedMeasure, y); + var begin = ref.begin; + var end = ref.end; + if (/\s/.test(lineObj.text.charAt(end - 1))) { end--; } + var part = null, closestDist = null; + for (var i = 0; i < order.length; i++) { + var p = order[i]; + if (p.from >= end || p.to <= begin) { continue } + var ltr = p.level != 1; + var endX = measureCharPrepared(cm, preparedMeasure, ltr ? Math.min(end, p.to) - 1 : Math.max(begin, p.from)).right; + // Weigh against spans ending before this, so that they are only + // picked if nothing ends after + var dist = endX < x ? x - endX + 1e9 : endX - x; + if (!part || closestDist > dist) { + part = p; + closestDist = dist; + } + } + if (!part) { part = order[order.length - 1]; } + // Clip the part to the wrapped line. + if (part.from < begin) { part = {from: begin, to: part.to, level: part.level}; } + if (part.to > end) { part = {from: part.from, to: end, level: part.level}; } + return part + } + + var measureText; + // Compute the default text height. + function textHeight(display) { + if (display.cachedTextHeight != null) { return display.cachedTextHeight } + if (measureText == null) { + measureText = elt("pre", null, "CodeMirror-line-like"); + // Measure a bunch of lines, for browsers that compute + // fractional heights. + for (var i = 0; i < 49; ++i) { + measureText.appendChild(document.createTextNode("x")); + measureText.appendChild(elt("br")); + } + measureText.appendChild(document.createTextNode("x")); + } + removeChildrenAndAdd(display.measure, measureText); + var height = measureText.offsetHeight / 50; + if (height > 3) { display.cachedTextHeight = height; } + removeChildren(display.measure); + return height || 1 + } + + // Compute the default character width. + function charWidth(display) { + if (display.cachedCharWidth != null) { return display.cachedCharWidth } + var anchor = elt("span", "xxxxxxxxxx"); + var pre = elt("pre", [anchor], "CodeMirror-line-like"); + removeChildrenAndAdd(display.measure, pre); + var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10; + if (width > 2) { display.cachedCharWidth = width; } + return width || 10 + } + + // Do a bulk-read of the DOM positions and sizes needed to draw the + // view, so that we don't interleave reading and writing to the DOM. + function getDimensions(cm) { + var d = cm.display, left = {}, width = {}; + var gutterLeft = d.gutters.clientLeft; + for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) { + var id = cm.display.gutterSpecs[i].className; + left[id] = n.offsetLeft + n.clientLeft + gutterLeft; + width[id] = n.clientWidth; + } + return {fixedPos: compensateForHScroll(d), + gutterTotalWidth: d.gutters.offsetWidth, + gutterLeft: left, + gutterWidth: width, + wrapperWidth: d.wrapper.clientWidth} + } + + // Computes display.scroller.scrollLeft + display.gutters.offsetWidth, + // but using getBoundingClientRect to get a sub-pixel-accurate + // result. + function compensateForHScroll(display) { + return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left + } + + // Returns a function that estimates the height of a line, to use as + // first approximation until the line becomes visible (and is thus + // properly measurable). + function estimateHeight(cm) { + var th = textHeight(cm.display), wrapping = cm.options.lineWrapping; + var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3); + return function (line) { + if (lineIsHidden(cm.doc, line)) { return 0 } + + var widgetsHeight = 0; + if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) { + if (line.widgets[i].height) { widgetsHeight += line.widgets[i].height; } + } } + + if (wrapping) + { return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th } + else + { return widgetsHeight + th } + } + } + + function estimateLineHeights(cm) { + var doc = cm.doc, est = estimateHeight(cm); + doc.iter(function (line) { + var estHeight = est(line); + if (estHeight != line.height) { updateLineHeight(line, estHeight); } + }); + } + + // Given a mouse event, find the corresponding position. If liberal + // is false, it checks whether a gutter or scrollbar was clicked, + // and returns null if it was. forRect is used by rectangular + // selections, and tries to estimate a character position even for + // coordinates beyond the right of the text. + function posFromMouse(cm, e, liberal, forRect) { + var display = cm.display; + if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") { return null } + + var x, y, space = display.lineSpace.getBoundingClientRect(); + // Fails unpredictably on IE[67] when mouse is dragged around quickly. + try { x = e.clientX - space.left; y = e.clientY - space.top; } + catch (e$1) { return null } + var coords = coordsChar(cm, x, y), line; + if (forRect && coords.xRel > 0 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) { + var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length; + coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff)); + } + return coords + } + + // Find the view element corresponding to a given line. Return null + // when the line isn't visible. + function findViewIndex(cm, n) { + if (n >= cm.display.viewTo) { return null } + n -= cm.display.viewFrom; + if (n < 0) { return null } + var view = cm.display.view; + for (var i = 0; i < view.length; i++) { + n -= view[i].size; + if (n < 0) { return i } + } + } + + // Updates the display.view data structure for a given change to the + // document. From and to are in pre-change coordinates. Lendiff is + // the amount of lines added or subtracted by the change. This is + // used for changes that span multiple lines, or change the way + // lines are divided into visual lines. regLineChange (below) + // registers single-line changes. + function regChange(cm, from, to, lendiff) { + if (from == null) { from = cm.doc.first; } + if (to == null) { to = cm.doc.first + cm.doc.size; } + if (!lendiff) { lendiff = 0; } + + var display = cm.display; + if (lendiff && to < display.viewTo && + (display.updateLineNumbers == null || display.updateLineNumbers > from)) + { display.updateLineNumbers = from; } + + cm.curOp.viewChanged = true; + + if (from >= display.viewTo) { // Change after + if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo) + { resetView(cm); } + } else if (to <= display.viewFrom) { // Change before + if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) { + resetView(cm); + } else { + display.viewFrom += lendiff; + display.viewTo += lendiff; + } + } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap + resetView(cm); + } else if (from <= display.viewFrom) { // Top overlap + var cut = viewCuttingPoint(cm, to, to + lendiff, 1); + if (cut) { + display.view = display.view.slice(cut.index); + display.viewFrom = cut.lineN; + display.viewTo += lendiff; + } else { + resetView(cm); + } + } else if (to >= display.viewTo) { // Bottom overlap + var cut$1 = viewCuttingPoint(cm, from, from, -1); + if (cut$1) { + display.view = display.view.slice(0, cut$1.index); + display.viewTo = cut$1.lineN; + } else { + resetView(cm); + } + } else { // Gap in the middle + var cutTop = viewCuttingPoint(cm, from, from, -1); + var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1); + if (cutTop && cutBot) { + display.view = display.view.slice(0, cutTop.index) + .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN)) + .concat(display.view.slice(cutBot.index)); + display.viewTo += lendiff; + } else { + resetView(cm); + } + } + + var ext = display.externalMeasured; + if (ext) { + if (to < ext.lineN) + { ext.lineN += lendiff; } + else if (from < ext.lineN + ext.size) + { display.externalMeasured = null; } + } + } + + // Register a change to a single line. Type must be one of "text", + // "gutter", "class", "widget" + function regLineChange(cm, line, type) { + cm.curOp.viewChanged = true; + var display = cm.display, ext = cm.display.externalMeasured; + if (ext && line >= ext.lineN && line < ext.lineN + ext.size) + { display.externalMeasured = null; } + + if (line < display.viewFrom || line >= display.viewTo) { return } + var lineView = display.view[findViewIndex(cm, line)]; + if (lineView.node == null) { return } + var arr = lineView.changes || (lineView.changes = []); + if (indexOf(arr, type) == -1) { arr.push(type); } + } + + // Clear the view. + function resetView(cm) { + cm.display.viewFrom = cm.display.viewTo = cm.doc.first; + cm.display.view = []; + cm.display.viewOffset = 0; + } + + function viewCuttingPoint(cm, oldN, newN, dir) { + var index = findViewIndex(cm, oldN), diff, view = cm.display.view; + if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size) + { return {index: index, lineN: newN} } + var n = cm.display.viewFrom; + for (var i = 0; i < index; i++) + { n += view[i].size; } + if (n != oldN) { + if (dir > 0) { + if (index == view.length - 1) { return null } + diff = (n + view[index].size) - oldN; + index++; + } else { + diff = n - oldN; + } + oldN += diff; newN += diff; + } + while (visualLineNo(cm.doc, newN) != newN) { + if (index == (dir < 0 ? 0 : view.length - 1)) { return null } + newN += dir * view[index - (dir < 0 ? 1 : 0)].size; + index += dir; + } + return {index: index, lineN: newN} + } + + // Force the view to cover a given range, adding empty view element + // or clipping off existing ones as needed. + function adjustView(cm, from, to) { + var display = cm.display, view = display.view; + if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) { + display.view = buildViewArray(cm, from, to); + display.viewFrom = from; + } else { + if (display.viewFrom > from) + { display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view); } + else if (display.viewFrom < from) + { display.view = display.view.slice(findViewIndex(cm, from)); } + display.viewFrom = from; + if (display.viewTo < to) + { display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)); } + else if (display.viewTo > to) + { display.view = display.view.slice(0, findViewIndex(cm, to)); } + } + display.viewTo = to; + } + + // Count the number of lines in the view whose DOM representation is + // out of date (or nonexistent). + function countDirtyView(cm) { + var view = cm.display.view, dirty = 0; + for (var i = 0; i < view.length; i++) { + var lineView = view[i]; + if (!lineView.hidden && (!lineView.node || lineView.changes)) { ++dirty; } + } + return dirty + } + + function updateSelection(cm) { + cm.display.input.showSelection(cm.display.input.prepareSelection()); + } + + function prepareSelection(cm, primary) { + if ( primary === void 0 ) primary = true; + + var doc = cm.doc, result = {}; + var curFragment = result.cursors = document.createDocumentFragment(); + var selFragment = result.selection = document.createDocumentFragment(); + + for (var i = 0; i < doc.sel.ranges.length; i++) { + if (!primary && i == doc.sel.primIndex) { continue } + var range = doc.sel.ranges[i]; + if (range.from().line >= cm.display.viewTo || range.to().line < cm.display.viewFrom) { continue } + var collapsed = range.empty(); + if (collapsed || cm.options.showCursorWhenSelecting) + { drawSelectionCursor(cm, range.head, curFragment); } + if (!collapsed) + { drawSelectionRange(cm, range, selFragment); } + } + return result + } + + // Draws a cursor for the given range + function drawSelectionCursor(cm, head, output) { + var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine); + + var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor")); + cursor.style.left = pos.left + "px"; + cursor.style.top = pos.top + "px"; + cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px"; + + if (pos.other) { + // Secondary cursor, shown when on a 'jump' in bi-directional text + var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor")); + otherCursor.style.display = ""; + otherCursor.style.left = pos.other.left + "px"; + otherCursor.style.top = pos.other.top + "px"; + otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px"; + } + } + + function cmpCoords(a, b) { return a.top - b.top || a.left - b.left } + + // Draws the given range as a highlighted selection + function drawSelectionRange(cm, range, output) { + var display = cm.display, doc = cm.doc; + var fragment = document.createDocumentFragment(); + var padding = paddingH(cm.display), leftSide = padding.left; + var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right; + var docLTR = doc.direction == "ltr"; + + function add(left, top, width, bottom) { + if (top < 0) { top = 0; } + top = Math.round(top); + bottom = Math.round(bottom); + fragment.appendChild(elt("div", null, "CodeMirror-selected", ("position: absolute; left: " + left + "px;\n top: " + top + "px; width: " + (width == null ? rightSide - left : width) + "px;\n height: " + (bottom - top) + "px"))); + } + + function drawForLine(line, fromArg, toArg) { + var lineObj = getLine(doc, line); + var lineLen = lineObj.text.length; + var start, end; + function coords(ch, bias) { + return charCoords(cm, Pos(line, ch), "div", lineObj, bias) + } + + function wrapX(pos, dir, side) { + var extent = wrappedLineExtentChar(cm, lineObj, null, pos); + var prop = (dir == "ltr") == (side == "after") ? "left" : "right"; + var ch = side == "after" ? extent.begin : extent.end - (/\s/.test(lineObj.text.charAt(extent.end - 1)) ? 2 : 1); + return coords(ch, prop)[prop] + } + + var order = getOrder(lineObj, doc.direction); + iterateBidiSections(order, fromArg || 0, toArg == null ? lineLen : toArg, function (from, to, dir, i) { + var ltr = dir == "ltr"; + var fromPos = coords(from, ltr ? "left" : "right"); + var toPos = coords(to - 1, ltr ? "right" : "left"); + + var openStart = fromArg == null && from == 0, openEnd = toArg == null && to == lineLen; + var first = i == 0, last = !order || i == order.length - 1; + if (toPos.top - fromPos.top <= 3) { // Single line + var openLeft = (docLTR ? openStart : openEnd) && first; + var openRight = (docLTR ? openEnd : openStart) && last; + var left = openLeft ? leftSide : (ltr ? fromPos : toPos).left; + var right = openRight ? rightSide : (ltr ? toPos : fromPos).right; + add(left, fromPos.top, right - left, fromPos.bottom); + } else { // Multiple lines + var topLeft, topRight, botLeft, botRight; + if (ltr) { + topLeft = docLTR && openStart && first ? leftSide : fromPos.left; + topRight = docLTR ? rightSide : wrapX(from, dir, "before"); + botLeft = docLTR ? leftSide : wrapX(to, dir, "after"); + botRight = docLTR && openEnd && last ? rightSide : toPos.right; + } else { + topLeft = !docLTR ? leftSide : wrapX(from, dir, "before"); + topRight = !docLTR && openStart && first ? rightSide : fromPos.right; + botLeft = !docLTR && openEnd && last ? leftSide : toPos.left; + botRight = !docLTR ? rightSide : wrapX(to, dir, "after"); + } + add(topLeft, fromPos.top, topRight - topLeft, fromPos.bottom); + if (fromPos.bottom < toPos.top) { add(leftSide, fromPos.bottom, null, toPos.top); } + add(botLeft, toPos.top, botRight - botLeft, toPos.bottom); + } + + if (!start || cmpCoords(fromPos, start) < 0) { start = fromPos; } + if (cmpCoords(toPos, start) < 0) { start = toPos; } + if (!end || cmpCoords(fromPos, end) < 0) { end = fromPos; } + if (cmpCoords(toPos, end) < 0) { end = toPos; } + }); + return {start: start, end: end} + } + + var sFrom = range.from(), sTo = range.to(); + if (sFrom.line == sTo.line) { + drawForLine(sFrom.line, sFrom.ch, sTo.ch); + } else { + var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line); + var singleVLine = visualLine(fromLine) == visualLine(toLine); + var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end; + var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start; + if (singleVLine) { + if (leftEnd.top < rightStart.top - 2) { + add(leftEnd.right, leftEnd.top, null, leftEnd.bottom); + add(leftSide, rightStart.top, rightStart.left, rightStart.bottom); + } else { + add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom); + } + } + if (leftEnd.bottom < rightStart.top) + { add(leftSide, leftEnd.bottom, null, rightStart.top); } + } + + output.appendChild(fragment); + } + + // Cursor-blinking + function restartBlink(cm) { + if (!cm.state.focused) { return } + var display = cm.display; + clearInterval(display.blinker); + var on = true; + display.cursorDiv.style.visibility = ""; + if (cm.options.cursorBlinkRate > 0) + { display.blinker = setInterval(function () { + if (!cm.hasFocus()) { onBlur(cm); } + display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden"; + }, cm.options.cursorBlinkRate); } + else if (cm.options.cursorBlinkRate < 0) + { display.cursorDiv.style.visibility = "hidden"; } + } + + function ensureFocus(cm) { + if (!cm.hasFocus()) { + cm.display.input.focus(); + if (!cm.state.focused) { onFocus(cm); } + } + } + + function delayBlurEvent(cm) { + cm.state.delayingBlurEvent = true; + setTimeout(function () { if (cm.state.delayingBlurEvent) { + cm.state.delayingBlurEvent = false; + if (cm.state.focused) { onBlur(cm); } + } }, 100); + } + + function onFocus(cm, e) { + if (cm.state.delayingBlurEvent && !cm.state.draggingText) { cm.state.delayingBlurEvent = false; } + + if (cm.options.readOnly == "nocursor") { return } + if (!cm.state.focused) { + signal(cm, "focus", cm, e); + cm.state.focused = true; + addClass(cm.display.wrapper, "CodeMirror-focused"); + // This test prevents this from firing when a context + // menu is closed (since the input reset would kill the + // select-all detection hack) + if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) { + cm.display.input.reset(); + if (webkit) { setTimeout(function () { return cm.display.input.reset(true); }, 20); } // Issue #1730 + } + cm.display.input.receivedFocus(); + } + restartBlink(cm); + } + function onBlur(cm, e) { + if (cm.state.delayingBlurEvent) { return } + + if (cm.state.focused) { + signal(cm, "blur", cm, e); + cm.state.focused = false; + rmClass(cm.display.wrapper, "CodeMirror-focused"); + } + clearInterval(cm.display.blinker); + setTimeout(function () { if (!cm.state.focused) { cm.display.shift = false; } }, 150); + } + + // Read the actual heights of the rendered lines, and update their + // stored heights to match. + function updateHeightsInViewport(cm) { + var display = cm.display; + var prevBottom = display.lineDiv.offsetTop; + for (var i = 0; i < display.view.length; i++) { + var cur = display.view[i], wrapping = cm.options.lineWrapping; + var height = (void 0), width = 0; + if (cur.hidden) { continue } + if (ie && ie_version < 8) { + var bot = cur.node.offsetTop + cur.node.offsetHeight; + height = bot - prevBottom; + prevBottom = bot; + } else { + var box = cur.node.getBoundingClientRect(); + height = box.bottom - box.top; + // Check that lines don't extend past the right of the current + // editor width + if (!wrapping && cur.text.firstChild) + { width = cur.text.firstChild.getBoundingClientRect().right - box.left - 1; } + } + var diff = cur.line.height - height; + if (diff > .005 || diff < -.005) { + updateLineHeight(cur.line, height); + updateWidgetHeight(cur.line); + if (cur.rest) { for (var j = 0; j < cur.rest.length; j++) + { updateWidgetHeight(cur.rest[j]); } } + } + if (width > cm.display.sizerWidth) { + var chWidth = Math.ceil(width / charWidth(cm.display)); + if (chWidth > cm.display.maxLineLength) { + cm.display.maxLineLength = chWidth; + cm.display.maxLine = cur.line; + cm.display.maxLineChanged = true; + } + } + } + } + + // Read and store the height of line widgets associated with the + // given line. + function updateWidgetHeight(line) { + if (line.widgets) { for (var i = 0; i < line.widgets.length; ++i) { + var w = line.widgets[i], parent = w.node.parentNode; + if (parent) { w.height = parent.offsetHeight; } + } } + } + + // Compute the lines that are visible in a given viewport (defaults + // the the current scroll position). viewport may contain top, + // height, and ensure (see op.scrollToPos) properties. + function visibleLines(display, doc, viewport) { + var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop; + top = Math.floor(top - paddingTop(display)); + var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight; + + var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom); + // Ensure is a {from: {line, ch}, to: {line, ch}} object, and + // forces those lines into the viewport (if possible). + if (viewport && viewport.ensure) { + var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line; + if (ensureFrom < from) { + from = ensureFrom; + to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight); + } else if (Math.min(ensureTo, doc.lastLine()) >= to) { + from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight); + to = ensureTo; + } + } + return {from: from, to: Math.max(to, from + 1)} + } + + // SCROLLING THINGS INTO VIEW + + // If an editor sits on the top or bottom of the window, partially + // scrolled out of view, this ensures that the cursor is visible. + function maybeScrollWindow(cm, rect) { + if (signalDOMEvent(cm, "scrollCursorIntoView")) { return } + + var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null; + if (rect.top + box.top < 0) { doScroll = true; } + else if (rect.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) { doScroll = false; } + if (doScroll != null && !phantom) { + var scrollNode = elt("div", "\u200b", null, ("position: absolute;\n top: " + (rect.top - display.viewOffset - paddingTop(cm.display)) + "px;\n height: " + (rect.bottom - rect.top + scrollGap(cm) + display.barHeight) + "px;\n left: " + (rect.left) + "px; width: " + (Math.max(2, rect.right - rect.left)) + "px;")); + cm.display.lineSpace.appendChild(scrollNode); + scrollNode.scrollIntoView(doScroll); + cm.display.lineSpace.removeChild(scrollNode); + } + } + + // Scroll a given position into view (immediately), verifying that + // it actually became visible (as line heights are accurately + // measured, the position of something may 'drift' during drawing). + function scrollPosIntoView(cm, pos, end, margin) { + if (margin == null) { margin = 0; } + var rect; + if (!cm.options.lineWrapping && pos == end) { + // Set pos and end to the cursor positions around the character pos sticks to + // If pos.sticky == "before", that is around pos.ch - 1, otherwise around pos.ch + // If pos == Pos(_, 0, "before"), pos and end are unchanged + pos = pos.ch ? Pos(pos.line, pos.sticky == "before" ? pos.ch - 1 : pos.ch, "after") : pos; + end = pos.sticky == "before" ? Pos(pos.line, pos.ch + 1, "before") : pos; + } + for (var limit = 0; limit < 5; limit++) { + var changed = false; + var coords = cursorCoords(cm, pos); + var endCoords = !end || end == pos ? coords : cursorCoords(cm, end); + rect = {left: Math.min(coords.left, endCoords.left), + top: Math.min(coords.top, endCoords.top) - margin, + right: Math.max(coords.left, endCoords.left), + bottom: Math.max(coords.bottom, endCoords.bottom) + margin}; + var scrollPos = calculateScrollPos(cm, rect); + var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft; + if (scrollPos.scrollTop != null) { + updateScrollTop(cm, scrollPos.scrollTop); + if (Math.abs(cm.doc.scrollTop - startTop) > 1) { changed = true; } + } + if (scrollPos.scrollLeft != null) { + setScrollLeft(cm, scrollPos.scrollLeft); + if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) { changed = true; } + } + if (!changed) { break } + } + return rect + } + + // Scroll a given set of coordinates into view (immediately). + function scrollIntoView(cm, rect) { + var scrollPos = calculateScrollPos(cm, rect); + if (scrollPos.scrollTop != null) { updateScrollTop(cm, scrollPos.scrollTop); } + if (scrollPos.scrollLeft != null) { setScrollLeft(cm, scrollPos.scrollLeft); } + } + + // Calculate a new scroll position needed to scroll the given + // rectangle into view. Returns an object with scrollTop and + // scrollLeft properties. When these are undefined, the + // vertical/horizontal position does not need to be adjusted. + function calculateScrollPos(cm, rect) { + var display = cm.display, snapMargin = textHeight(cm.display); + if (rect.top < 0) { rect.top = 0; } + var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop; + var screen = displayHeight(cm), result = {}; + if (rect.bottom - rect.top > screen) { rect.bottom = rect.top + screen; } + var docBottom = cm.doc.height + paddingVert(display); + var atTop = rect.top < snapMargin, atBottom = rect.bottom > docBottom - snapMargin; + if (rect.top < screentop) { + result.scrollTop = atTop ? 0 : rect.top; + } else if (rect.bottom > screentop + screen) { + var newTop = Math.min(rect.top, (atBottom ? docBottom : rect.bottom) - screen); + if (newTop != screentop) { result.scrollTop = newTop; } + } + + var gutterSpace = cm.options.fixedGutter ? 0 : display.gutters.offsetWidth; + var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft - gutterSpace; + var screenw = displayWidth(cm) - display.gutters.offsetWidth; + var tooWide = rect.right - rect.left > screenw; + if (tooWide) { rect.right = rect.left + screenw; } + if (rect.left < 10) + { result.scrollLeft = 0; } + else if (rect.left < screenleft) + { result.scrollLeft = Math.max(0, rect.left + gutterSpace - (tooWide ? 0 : 10)); } + else if (rect.right > screenw + screenleft - 3) + { result.scrollLeft = rect.right + (tooWide ? 0 : 10) - screenw; } + return result + } + + // Store a relative adjustment to the scroll position in the current + // operation (to be applied when the operation finishes). + function addToScrollTop(cm, top) { + if (top == null) { return } + resolveScrollToPos(cm); + cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top; + } + + // Make sure that at the end of the operation the current cursor is + // shown. + function ensureCursorVisible(cm) { + resolveScrollToPos(cm); + var cur = cm.getCursor(); + cm.curOp.scrollToPos = {from: cur, to: cur, margin: cm.options.cursorScrollMargin}; + } + + function scrollToCoords(cm, x, y) { + if (x != null || y != null) { resolveScrollToPos(cm); } + if (x != null) { cm.curOp.scrollLeft = x; } + if (y != null) { cm.curOp.scrollTop = y; } + } + + function scrollToRange(cm, range) { + resolveScrollToPos(cm); + cm.curOp.scrollToPos = range; + } + + // When an operation has its scrollToPos property set, and another + // scroll action is applied before the end of the operation, this + // 'simulates' scrolling that position into view in a cheap way, so + // that the effect of intermediate scroll commands is not ignored. + function resolveScrollToPos(cm) { + var range = cm.curOp.scrollToPos; + if (range) { + cm.curOp.scrollToPos = null; + var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to); + scrollToCoordsRange(cm, from, to, range.margin); + } + } + + function scrollToCoordsRange(cm, from, to, margin) { + var sPos = calculateScrollPos(cm, { + left: Math.min(from.left, to.left), + top: Math.min(from.top, to.top) - margin, + right: Math.max(from.right, to.right), + bottom: Math.max(from.bottom, to.bottom) + margin + }); + scrollToCoords(cm, sPos.scrollLeft, sPos.scrollTop); + } + + // Sync the scrollable area and scrollbars, ensure the viewport + // covers the visible area. + function updateScrollTop(cm, val) { + if (Math.abs(cm.doc.scrollTop - val) < 2) { return } + if (!gecko) { updateDisplaySimple(cm, {top: val}); } + setScrollTop(cm, val, true); + if (gecko) { updateDisplaySimple(cm); } + startWorker(cm, 100); + } + + function setScrollTop(cm, val, forceScroll) { + val = Math.max(0, Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, val)); + if (cm.display.scroller.scrollTop == val && !forceScroll) { return } + cm.doc.scrollTop = val; + cm.display.scrollbars.setScrollTop(val); + if (cm.display.scroller.scrollTop != val) { cm.display.scroller.scrollTop = val; } + } + + // Sync scroller and scrollbar, ensure the gutter elements are + // aligned. + function setScrollLeft(cm, val, isScroller, forceScroll) { + val = Math.max(0, Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth)); + if ((isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) && !forceScroll) { return } + cm.doc.scrollLeft = val; + alignHorizontally(cm); + if (cm.display.scroller.scrollLeft != val) { cm.display.scroller.scrollLeft = val; } + cm.display.scrollbars.setScrollLeft(val); + } + + // SCROLLBARS + + // Prepare DOM reads needed to update the scrollbars. Done in one + // shot to minimize update/measure roundtrips. + function measureForScrollbars(cm) { + var d = cm.display, gutterW = d.gutters.offsetWidth; + var docH = Math.round(cm.doc.height + paddingVert(cm.display)); + return { + clientHeight: d.scroller.clientHeight, + viewHeight: d.wrapper.clientHeight, + scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth, + viewWidth: d.wrapper.clientWidth, + barLeft: cm.options.fixedGutter ? gutterW : 0, + docHeight: docH, + scrollHeight: docH + scrollGap(cm) + d.barHeight, + nativeBarWidth: d.nativeBarWidth, + gutterWidth: gutterW + } + } + + var NativeScrollbars = function(place, scroll, cm) { + this.cm = cm; + var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar"); + var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar"); + vert.tabIndex = horiz.tabIndex = -1; + place(vert); place(horiz); + + on(vert, "scroll", function () { + if (vert.clientHeight) { scroll(vert.scrollTop, "vertical"); } + }); + on(horiz, "scroll", function () { + if (horiz.clientWidth) { scroll(horiz.scrollLeft, "horizontal"); } + }); + + this.checkedZeroWidth = false; + // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8). + if (ie && ie_version < 8) { this.horiz.style.minHeight = this.vert.style.minWidth = "18px"; } + }; + + NativeScrollbars.prototype.update = function (measure) { + var needsH = measure.scrollWidth > measure.clientWidth + 1; + var needsV = measure.scrollHeight > measure.clientHeight + 1; + var sWidth = measure.nativeBarWidth; + + if (needsV) { + this.vert.style.display = "block"; + this.vert.style.bottom = needsH ? sWidth + "px" : "0"; + var totalHeight = measure.viewHeight - (needsH ? sWidth : 0); + // A bug in IE8 can cause this value to be negative, so guard it. + this.vert.firstChild.style.height = + Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px"; + } else { + this.vert.style.display = ""; + this.vert.firstChild.style.height = "0"; + } + + if (needsH) { + this.horiz.style.display = "block"; + this.horiz.style.right = needsV ? sWidth + "px" : "0"; + this.horiz.style.left = measure.barLeft + "px"; + var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0); + this.horiz.firstChild.style.width = + Math.max(0, measure.scrollWidth - measure.clientWidth + totalWidth) + "px"; + } else { + this.horiz.style.display = ""; + this.horiz.firstChild.style.width = "0"; + } + + if (!this.checkedZeroWidth && measure.clientHeight > 0) { + if (sWidth == 0) { this.zeroWidthHack(); } + this.checkedZeroWidth = true; + } + + return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0} + }; + + NativeScrollbars.prototype.setScrollLeft = function (pos) { + if (this.horiz.scrollLeft != pos) { this.horiz.scrollLeft = pos; } + if (this.disableHoriz) { this.enableZeroWidthBar(this.horiz, this.disableHoriz, "horiz"); } + }; + + NativeScrollbars.prototype.setScrollTop = function (pos) { + if (this.vert.scrollTop != pos) { this.vert.scrollTop = pos; } + if (this.disableVert) { this.enableZeroWidthBar(this.vert, this.disableVert, "vert"); } + }; + + NativeScrollbars.prototype.zeroWidthHack = function () { + var w = mac && !mac_geMountainLion ? "12px" : "18px"; + this.horiz.style.height = this.vert.style.width = w; + this.horiz.style.pointerEvents = this.vert.style.pointerEvents = "none"; + this.disableHoriz = new Delayed; + this.disableVert = new Delayed; + }; + + NativeScrollbars.prototype.enableZeroWidthBar = function (bar, delay, type) { + bar.style.pointerEvents = "auto"; + function maybeDisable() { + // To find out whether the scrollbar is still visible, we + // check whether the element under the pixel in the bottom + // right corner of the scrollbar box is the scrollbar box + // itself (when the bar is still visible) or its filler child + // (when the bar is hidden). If it is still visible, we keep + // it enabled, if it's hidden, we disable pointer events. + var box = bar.getBoundingClientRect(); + var elt = type == "vert" ? document.elementFromPoint(box.right - 1, (box.top + box.bottom) / 2) + : document.elementFromPoint((box.right + box.left) / 2, box.bottom - 1); + if (elt != bar) { bar.style.pointerEvents = "none"; } + else { delay.set(1000, maybeDisable); } + } + delay.set(1000, maybeDisable); + }; + + NativeScrollbars.prototype.clear = function () { + var parent = this.horiz.parentNode; + parent.removeChild(this.horiz); + parent.removeChild(this.vert); + }; + + var NullScrollbars = function () {}; + + NullScrollbars.prototype.update = function () { return {bottom: 0, right: 0} }; + NullScrollbars.prototype.setScrollLeft = function () {}; + NullScrollbars.prototype.setScrollTop = function () {}; + NullScrollbars.prototype.clear = function () {}; + + function updateScrollbars(cm, measure) { + if (!measure) { measure = measureForScrollbars(cm); } + var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight; + updateScrollbarsInner(cm, measure); + for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) { + if (startWidth != cm.display.barWidth && cm.options.lineWrapping) + { updateHeightsInViewport(cm); } + updateScrollbarsInner(cm, measureForScrollbars(cm)); + startWidth = cm.display.barWidth; startHeight = cm.display.barHeight; + } + } + + // Re-synchronize the fake scrollbars with the actual size of the + // content. + function updateScrollbarsInner(cm, measure) { + var d = cm.display; + var sizes = d.scrollbars.update(measure); + + d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px"; + d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px"; + d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent"; + + if (sizes.right && sizes.bottom) { + d.scrollbarFiller.style.display = "block"; + d.scrollbarFiller.style.height = sizes.bottom + "px"; + d.scrollbarFiller.style.width = sizes.right + "px"; + } else { d.scrollbarFiller.style.display = ""; } + if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) { + d.gutterFiller.style.display = "block"; + d.gutterFiller.style.height = sizes.bottom + "px"; + d.gutterFiller.style.width = measure.gutterWidth + "px"; + } else { d.gutterFiller.style.display = ""; } + } + + var scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars}; + + function initScrollbars(cm) { + if (cm.display.scrollbars) { + cm.display.scrollbars.clear(); + if (cm.display.scrollbars.addClass) + { rmClass(cm.display.wrapper, cm.display.scrollbars.addClass); } + } + + cm.display.scrollbars = new scrollbarModel[cm.options.scrollbarStyle](function (node) { + cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller); + // Prevent clicks in the scrollbars from killing focus + on(node, "mousedown", function () { + if (cm.state.focused) { setTimeout(function () { return cm.display.input.focus(); }, 0); } + }); + node.setAttribute("cm-not-content", "true"); + }, function (pos, axis) { + if (axis == "horizontal") { setScrollLeft(cm, pos); } + else { updateScrollTop(cm, pos); } + }, cm); + if (cm.display.scrollbars.addClass) + { addClass(cm.display.wrapper, cm.display.scrollbars.addClass); } + } + + // Operations are used to wrap a series of changes to the editor + // state in such a way that each change won't have to update the + // cursor and display (which would be awkward, slow, and + // error-prone). Instead, display updates are batched and then all + // combined and executed at once. + + var nextOpId = 0; + // Start a new operation. + function startOperation(cm) { + cm.curOp = { + cm: cm, + viewChanged: false, // Flag that indicates that lines might need to be redrawn + startHeight: cm.doc.height, // Used to detect need to update scrollbar + forceUpdate: false, // Used to force a redraw + updateInput: 0, // Whether to reset the input textarea + typing: false, // Whether this reset should be careful to leave existing text (for compositing) + changeObjs: null, // Accumulated changes, for firing change events + cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on + cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already + selectionChanged: false, // Whether the selection needs to be redrawn + updateMaxLine: false, // Set when the widest line needs to be determined anew + scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet + scrollToPos: null, // Used to scroll to a specific position + focus: false, + id: ++nextOpId // Unique ID + }; + pushOperation(cm.curOp); + } + + // Finish an operation, updating the display and signalling delayed events + function endOperation(cm) { + var op = cm.curOp; + if (op) { finishOperation(op, function (group) { + for (var i = 0; i < group.ops.length; i++) + { group.ops[i].cm.curOp = null; } + endOperations(group); + }); } + } + + // The DOM updates done when an operation finishes are batched so + // that the minimum number of relayouts are required. + function endOperations(group) { + var ops = group.ops; + for (var i = 0; i < ops.length; i++) // Read DOM + { endOperation_R1(ops[i]); } + for (var i$1 = 0; i$1 < ops.length; i$1++) // Write DOM (maybe) + { endOperation_W1(ops[i$1]); } + for (var i$2 = 0; i$2 < ops.length; i$2++) // Read DOM + { endOperation_R2(ops[i$2]); } + for (var i$3 = 0; i$3 < ops.length; i$3++) // Write DOM (maybe) + { endOperation_W2(ops[i$3]); } + for (var i$4 = 0; i$4 < ops.length; i$4++) // Read DOM + { endOperation_finish(ops[i$4]); } + } + + function endOperation_R1(op) { + var cm = op.cm, display = cm.display; + maybeClipScrollbars(cm); + if (op.updateMaxLine) { findMaxLine(cm); } + + op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null || + op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom || + op.scrollToPos.to.line >= display.viewTo) || + display.maxLineChanged && cm.options.lineWrapping; + op.update = op.mustUpdate && + new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate); + } + + function endOperation_W1(op) { + op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update); + } + + function endOperation_R2(op) { + var cm = op.cm, display = cm.display; + if (op.updatedDisplay) { updateHeightsInViewport(cm); } + + op.barMeasure = measureForScrollbars(cm); + + // If the max line changed since it was last measured, measure it, + // and ensure the document's width matches it. + // updateDisplay_W2 will use these properties to do the actual resizing + if (display.maxLineChanged && !cm.options.lineWrapping) { + op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3; + cm.display.sizerWidth = op.adjustWidthTo; + op.barMeasure.scrollWidth = + Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth); + op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm)); + } + + if (op.updatedDisplay || op.selectionChanged) + { op.preparedSelection = display.input.prepareSelection(); } + } + + function endOperation_W2(op) { + var cm = op.cm; + + if (op.adjustWidthTo != null) { + cm.display.sizer.style.minWidth = op.adjustWidthTo + "px"; + if (op.maxScrollLeft < cm.doc.scrollLeft) + { setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true); } + cm.display.maxLineChanged = false; + } + + var takeFocus = op.focus && op.focus == activeElt(); + if (op.preparedSelection) + { cm.display.input.showSelection(op.preparedSelection, takeFocus); } + if (op.updatedDisplay || op.startHeight != cm.doc.height) + { updateScrollbars(cm, op.barMeasure); } + if (op.updatedDisplay) + { setDocumentHeight(cm, op.barMeasure); } + + if (op.selectionChanged) { restartBlink(cm); } + + if (cm.state.focused && op.updateInput) + { cm.display.input.reset(op.typing); } + if (takeFocus) { ensureFocus(op.cm); } + } + + function endOperation_finish(op) { + var cm = op.cm, display = cm.display, doc = cm.doc; + + if (op.updatedDisplay) { postUpdateDisplay(cm, op.update); } + + // Abort mouse wheel delta measurement, when scrolling explicitly + if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos)) + { display.wheelStartX = display.wheelStartY = null; } + + // Propagate the scroll position to the actual DOM scroller + if (op.scrollTop != null) { setScrollTop(cm, op.scrollTop, op.forceScroll); } + + if (op.scrollLeft != null) { setScrollLeft(cm, op.scrollLeft, true, true); } + // If we need to scroll a specific position into view, do so. + if (op.scrollToPos) { + var rect = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from), + clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin); + maybeScrollWindow(cm, rect); + } + + // Fire events for markers that are hidden/unidden by editing or + // undoing + var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers; + if (hidden) { for (var i = 0; i < hidden.length; ++i) + { if (!hidden[i].lines.length) { signal(hidden[i], "hide"); } } } + if (unhidden) { for (var i$1 = 0; i$1 < unhidden.length; ++i$1) + { if (unhidden[i$1].lines.length) { signal(unhidden[i$1], "unhide"); } } } + + if (display.wrapper.offsetHeight) + { doc.scrollTop = cm.display.scroller.scrollTop; } + + // Fire change events, and delayed event handlers + if (op.changeObjs) + { signal(cm, "changes", cm, op.changeObjs); } + if (op.update) + { op.update.finish(); } + } + + // Run the given function in an operation + function runInOp(cm, f) { + if (cm.curOp) { return f() } + startOperation(cm); + try { return f() } + finally { endOperation(cm); } + } + // Wraps a function in an operation. Returns the wrapped function. + function operation(cm, f) { + return function() { + if (cm.curOp) { return f.apply(cm, arguments) } + startOperation(cm); + try { return f.apply(cm, arguments) } + finally { endOperation(cm); } + } + } + // Used to add methods to editor and doc instances, wrapping them in + // operations. + function methodOp(f) { + return function() { + if (this.curOp) { return f.apply(this, arguments) } + startOperation(this); + try { return f.apply(this, arguments) } + finally { endOperation(this); } + } + } + function docMethodOp(f) { + return function() { + var cm = this.cm; + if (!cm || cm.curOp) { return f.apply(this, arguments) } + startOperation(cm); + try { return f.apply(this, arguments) } + finally { endOperation(cm); } + } + } + + // HIGHLIGHT WORKER + + function startWorker(cm, time) { + if (cm.doc.highlightFrontier < cm.display.viewTo) + { cm.state.highlight.set(time, bind(highlightWorker, cm)); } + } + + function highlightWorker(cm) { + var doc = cm.doc; + if (doc.highlightFrontier >= cm.display.viewTo) { return } + var end = +new Date + cm.options.workTime; + var context = getContextBefore(cm, doc.highlightFrontier); + var changedLines = []; + + doc.iter(context.line, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function (line) { + if (context.line >= cm.display.viewFrom) { // Visible + var oldStyles = line.styles; + var resetState = line.text.length > cm.options.maxHighlightLength ? copyState(doc.mode, context.state) : null; + var highlighted = highlightLine(cm, line, context, true); + if (resetState) { context.state = resetState; } + line.styles = highlighted.styles; + var oldCls = line.styleClasses, newCls = highlighted.classes; + if (newCls) { line.styleClasses = newCls; } + else if (oldCls) { line.styleClasses = null; } + var ischange = !oldStyles || oldStyles.length != line.styles.length || + oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass); + for (var i = 0; !ischange && i < oldStyles.length; ++i) { ischange = oldStyles[i] != line.styles[i]; } + if (ischange) { changedLines.push(context.line); } + line.stateAfter = context.save(); + context.nextLine(); + } else { + if (line.text.length <= cm.options.maxHighlightLength) + { processLine(cm, line.text, context); } + line.stateAfter = context.line % 5 == 0 ? context.save() : null; + context.nextLine(); + } + if (+new Date > end) { + startWorker(cm, cm.options.workDelay); + return true + } + }); + doc.highlightFrontier = context.line; + doc.modeFrontier = Math.max(doc.modeFrontier, context.line); + if (changedLines.length) { runInOp(cm, function () { + for (var i = 0; i < changedLines.length; i++) + { regLineChange(cm, changedLines[i], "text"); } + }); } + } + + // DISPLAY DRAWING + + var DisplayUpdate = function(cm, viewport, force) { + var display = cm.display; + + this.viewport = viewport; + // Store some values that we'll need later (but don't want to force a relayout for) + this.visible = visibleLines(display, cm.doc, viewport); + this.editorIsHidden = !display.wrapper.offsetWidth; + this.wrapperHeight = display.wrapper.clientHeight; + this.wrapperWidth = display.wrapper.clientWidth; + this.oldDisplayWidth = displayWidth(cm); + this.force = force; + this.dims = getDimensions(cm); + this.events = []; + }; + + DisplayUpdate.prototype.signal = function (emitter, type) { + if (hasHandler(emitter, type)) + { this.events.push(arguments); } + }; + DisplayUpdate.prototype.finish = function () { + for (var i = 0; i < this.events.length; i++) + { signal.apply(null, this.events[i]); } + }; + + function maybeClipScrollbars(cm) { + var display = cm.display; + if (!display.scrollbarsClipped && display.scroller.offsetWidth) { + display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth; + display.heightForcer.style.height = scrollGap(cm) + "px"; + display.sizer.style.marginBottom = -display.nativeBarWidth + "px"; + display.sizer.style.borderRightWidth = scrollGap(cm) + "px"; + display.scrollbarsClipped = true; + } + } + + function selectionSnapshot(cm) { + if (cm.hasFocus()) { return null } + var active = activeElt(); + if (!active || !contains(cm.display.lineDiv, active)) { return null } + var result = {activeElt: active}; + if (window.getSelection) { + var sel = window.getSelection(); + if (sel.anchorNode && sel.extend && contains(cm.display.lineDiv, sel.anchorNode)) { + result.anchorNode = sel.anchorNode; + result.anchorOffset = sel.anchorOffset; + result.focusNode = sel.focusNode; + result.focusOffset = sel.focusOffset; + } + } + return result + } + + function restoreSelection(snapshot) { + if (!snapshot || !snapshot.activeElt || snapshot.activeElt == activeElt()) { return } + snapshot.activeElt.focus(); + if (!/^(INPUT|TEXTAREA)$/.test(snapshot.activeElt.nodeName) && + snapshot.anchorNode && contains(document.body, snapshot.anchorNode) && contains(document.body, snapshot.focusNode)) { + var sel = window.getSelection(), range = document.createRange(); + range.setEnd(snapshot.anchorNode, snapshot.anchorOffset); + range.collapse(false); + sel.removeAllRanges(); + sel.addRange(range); + sel.extend(snapshot.focusNode, snapshot.focusOffset); + } + } + + // Does the actual updating of the line display. Bails out + // (returning false) when there is nothing to be done and forced is + // false. + function updateDisplayIfNeeded(cm, update) { + var display = cm.display, doc = cm.doc; + + if (update.editorIsHidden) { + resetView(cm); + return false + } + + // Bail out if the visible area is already rendered and nothing changed. + if (!update.force && + update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo && + (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) && + display.renderedView == display.view && countDirtyView(cm) == 0) + { return false } + + if (maybeUpdateLineNumberWidth(cm)) { + resetView(cm); + update.dims = getDimensions(cm); + } + + // Compute a suitable new viewport (from & to) + var end = doc.first + doc.size; + var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first); + var to = Math.min(end, update.visible.to + cm.options.viewportMargin); + if (display.viewFrom < from && from - display.viewFrom < 20) { from = Math.max(doc.first, display.viewFrom); } + if (display.viewTo > to && display.viewTo - to < 20) { to = Math.min(end, display.viewTo); } + if (sawCollapsedSpans) { + from = visualLineNo(cm.doc, from); + to = visualLineEndNo(cm.doc, to); + } + + var different = from != display.viewFrom || to != display.viewTo || + display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth; + adjustView(cm, from, to); + + display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom)); + // Position the mover div to align with the current scroll position + cm.display.mover.style.top = display.viewOffset + "px"; + + var toUpdate = countDirtyView(cm); + if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view && + (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo)) + { return false } + + // For big changes, we hide the enclosing element during the + // update, since that speeds up the operations on most browsers. + var selSnapshot = selectionSnapshot(cm); + if (toUpdate > 4) { display.lineDiv.style.display = "none"; } + patchDisplay(cm, display.updateLineNumbers, update.dims); + if (toUpdate > 4) { display.lineDiv.style.display = ""; } + display.renderedView = display.view; + // There might have been a widget with a focused element that got + // hidden or updated, if so re-focus it. + restoreSelection(selSnapshot); + + // Prevent selection and cursors from interfering with the scroll + // width and height. + removeChildren(display.cursorDiv); + removeChildren(display.selectionDiv); + display.gutters.style.height = display.sizer.style.minHeight = 0; + + if (different) { + display.lastWrapHeight = update.wrapperHeight; + display.lastWrapWidth = update.wrapperWidth; + startWorker(cm, 400); + } + + display.updateLineNumbers = null; + + return true + } + + function postUpdateDisplay(cm, update) { + var viewport = update.viewport; + + for (var first = true;; first = false) { + if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) { + // Clip forced viewport to actual scrollable area. + if (viewport && viewport.top != null) + { viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)}; } + // Updated line heights might result in the drawn area not + // actually covering the viewport. Keep looping until it does. + update.visible = visibleLines(cm.display, cm.doc, viewport); + if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo) + { break } + } else if (first) { + update.visible = visibleLines(cm.display, cm.doc, viewport); + } + if (!updateDisplayIfNeeded(cm, update)) { break } + updateHeightsInViewport(cm); + var barMeasure = measureForScrollbars(cm); + updateSelection(cm); + updateScrollbars(cm, barMeasure); + setDocumentHeight(cm, barMeasure); + update.force = false; + } + + update.signal(cm, "update", cm); + if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) { + update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo); + cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo; + } + } + + function updateDisplaySimple(cm, viewport) { + var update = new DisplayUpdate(cm, viewport); + if (updateDisplayIfNeeded(cm, update)) { + updateHeightsInViewport(cm); + postUpdateDisplay(cm, update); + var barMeasure = measureForScrollbars(cm); + updateSelection(cm); + updateScrollbars(cm, barMeasure); + setDocumentHeight(cm, barMeasure); + update.finish(); + } + } + + // Sync the actual display DOM structure with display.view, removing + // nodes for lines that are no longer in view, and creating the ones + // that are not there yet, and updating the ones that are out of + // date. + function patchDisplay(cm, updateNumbersFrom, dims) { + var display = cm.display, lineNumbers = cm.options.lineNumbers; + var container = display.lineDiv, cur = container.firstChild; + + function rm(node) { + var next = node.nextSibling; + // Works around a throw-scroll bug in OS X Webkit + if (webkit && mac && cm.display.currentWheelTarget == node) + { node.style.display = "none"; } + else + { node.parentNode.removeChild(node); } + return next + } + + var view = display.view, lineN = display.viewFrom; + // Loop over the elements in the view, syncing cur (the DOM nodes + // in display.lineDiv) with the view as we go. + for (var i = 0; i < view.length; i++) { + var lineView = view[i]; + if (lineView.hidden) ; else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet + var node = buildLineElement(cm, lineView, lineN, dims); + container.insertBefore(node, cur); + } else { // Already drawn + while (cur != lineView.node) { cur = rm(cur); } + var updateNumber = lineNumbers && updateNumbersFrom != null && + updateNumbersFrom <= lineN && lineView.lineNumber; + if (lineView.changes) { + if (indexOf(lineView.changes, "gutter") > -1) { updateNumber = false; } + updateLineForChanges(cm, lineView, lineN, dims); + } + if (updateNumber) { + removeChildren(lineView.lineNumber); + lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN))); + } + cur = lineView.node.nextSibling; + } + lineN += lineView.size; + } + while (cur) { cur = rm(cur); } + } + + function updateGutterSpace(display) { + var width = display.gutters.offsetWidth; + display.sizer.style.marginLeft = width + "px"; + } + + function setDocumentHeight(cm, measure) { + cm.display.sizer.style.minHeight = measure.docHeight + "px"; + cm.display.heightForcer.style.top = measure.docHeight + "px"; + cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + "px"; + } + + // Re-align line numbers and gutter marks to compensate for + // horizontal scrolling. + function alignHorizontally(cm) { + var display = cm.display, view = display.view; + if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) { return } + var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft; + var gutterW = display.gutters.offsetWidth, left = comp + "px"; + for (var i = 0; i < view.length; i++) { if (!view[i].hidden) { + if (cm.options.fixedGutter) { + if (view[i].gutter) + { view[i].gutter.style.left = left; } + if (view[i].gutterBackground) + { view[i].gutterBackground.style.left = left; } + } + var align = view[i].alignable; + if (align) { for (var j = 0; j < align.length; j++) + { align[j].style.left = left; } } + } } + if (cm.options.fixedGutter) + { display.gutters.style.left = (comp + gutterW) + "px"; } + } + + // Used to ensure that the line number gutter is still the right + // size for the current document size. Returns true when an update + // is needed. + function maybeUpdateLineNumberWidth(cm) { + if (!cm.options.lineNumbers) { return false } + var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display; + if (last.length != display.lineNumChars) { + var test = display.measure.appendChild(elt("div", [elt("div", last)], + "CodeMirror-linenumber CodeMirror-gutter-elt")); + var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW; + display.lineGutter.style.width = ""; + display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1; + display.lineNumWidth = display.lineNumInnerWidth + padding; + display.lineNumChars = display.lineNumInnerWidth ? last.length : -1; + display.lineGutter.style.width = display.lineNumWidth + "px"; + updateGutterSpace(cm.display); + return true + } + return false + } + + function getGutters(gutters, lineNumbers) { + var result = [], sawLineNumbers = false; + for (var i = 0; i < gutters.length; i++) { + var name = gutters[i], style = null; + if (typeof name != "string") { style = name.style; name = name.className; } + if (name == "CodeMirror-linenumbers") { + if (!lineNumbers) { continue } + else { sawLineNumbers = true; } + } + result.push({className: name, style: style}); + } + if (lineNumbers && !sawLineNumbers) { result.push({className: "CodeMirror-linenumbers", style: null}); } + return result + } + + // Rebuild the gutter elements, ensure the margin to the left of the + // code matches their width. + function renderGutters(display) { + var gutters = display.gutters, specs = display.gutterSpecs; + removeChildren(gutters); + display.lineGutter = null; + for (var i = 0; i < specs.length; ++i) { + var ref = specs[i]; + var className = ref.className; + var style = ref.style; + var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + className)); + if (style) { gElt.style.cssText = style; } + if (className == "CodeMirror-linenumbers") { + display.lineGutter = gElt; + gElt.style.width = (display.lineNumWidth || 1) + "px"; + } + } + gutters.style.display = specs.length ? "" : "none"; + updateGutterSpace(display); + } + + function updateGutters(cm) { + renderGutters(cm.display); + regChange(cm); + alignHorizontally(cm); + } + + // The display handles the DOM integration, both for input reading + // and content drawing. It holds references to DOM nodes and + // display-related state. + + function Display(place, doc, input, options) { + var d = this; + this.input = input; + + // Covers bottom-right square when both scrollbars are present. + d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler"); + d.scrollbarFiller.setAttribute("cm-not-content", "true"); + // Covers bottom of gutter when coverGutterNextToScrollbar is on + // and h scrollbar is present. + d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler"); + d.gutterFiller.setAttribute("cm-not-content", "true"); + // Will contain the actual code, positioned to cover the viewport. + d.lineDiv = eltP("div", null, "CodeMirror-code"); + // Elements are added to these to represent selection and cursors. + d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1"); + d.cursorDiv = elt("div", null, "CodeMirror-cursors"); + // A visibility: hidden element used to find the size of things. + d.measure = elt("div", null, "CodeMirror-measure"); + // When lines outside of the viewport are measured, they are drawn in this. + d.lineMeasure = elt("div", null, "CodeMirror-measure"); + // Wraps everything that needs to exist inside the vertically-padded coordinate system + d.lineSpace = eltP("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv], + null, "position: relative; outline: none"); + var lines = eltP("div", [d.lineSpace], "CodeMirror-lines"); + // Moved around its parent to cover visible view. + d.mover = elt("div", [lines], null, "position: relative"); + // Set to the height of the document, allowing scrolling. + d.sizer = elt("div", [d.mover], "CodeMirror-sizer"); + d.sizerWidth = null; + // Behavior of elts with overflow: auto and padding is + // inconsistent across browsers. This is used to ensure the + // scrollable area is big enough. + d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;"); + // Will contain the gutters, if any. + d.gutters = elt("div", null, "CodeMirror-gutters"); + d.lineGutter = null; + // Actual scrollable element. + d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll"); + d.scroller.setAttribute("tabIndex", "-1"); + // The element in which the editor lives. + d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror"); + + // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported) + if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; } + if (!webkit && !(gecko && mobile)) { d.scroller.draggable = true; } + + if (place) { + if (place.appendChild) { place.appendChild(d.wrapper); } + else { place(d.wrapper); } + } + + // Current rendered range (may be bigger than the view window). + d.viewFrom = d.viewTo = doc.first; + d.reportedViewFrom = d.reportedViewTo = doc.first; + // Information about the rendered lines. + d.view = []; + d.renderedView = null; + // Holds info about a single rendered line when it was rendered + // for measurement, while not in view. + d.externalMeasured = null; + // Empty space (in pixels) above the view + d.viewOffset = 0; + d.lastWrapHeight = d.lastWrapWidth = 0; + d.updateLineNumbers = null; + + d.nativeBarWidth = d.barHeight = d.barWidth = 0; + d.scrollbarsClipped = false; + + // Used to only resize the line number gutter when necessary (when + // the amount of lines crosses a boundary that makes its width change) + d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null; + // Set to true when a non-horizontal-scrolling line widget is + // added. As an optimization, line widget aligning is skipped when + // this is false. + d.alignWidgets = false; + + d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null; + + // Tracks the maximum line length so that the horizontal scrollbar + // can be kept static when scrolling. + d.maxLine = null; + d.maxLineLength = 0; + d.maxLineChanged = false; + + // Used for measuring wheel scrolling granularity + d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null; + + // True when shift is held down. + d.shift = false; + + // Used to track whether anything happened since the context menu + // was opened. + d.selForContextMenu = null; + + d.activeTouch = null; + + d.gutterSpecs = getGutters(options.gutters, options.lineNumbers); + renderGutters(d); + + input.init(d); + } + + // Since the delta values reported on mouse wheel events are + // unstandardized between browsers and even browser versions, and + // generally horribly unpredictable, this code starts by measuring + // the scroll effect that the first few mouse wheel events have, + // and, from that, detects the way it can convert deltas to pixel + // offsets afterwards. + // + // The reason we want to know the amount a wheel event will scroll + // is that it gives us a chance to update the display before the + // actual scrolling happens, reducing flickering. + + var wheelSamples = 0, wheelPixelsPerUnit = null; + // Fill in a browser-detected starting value on browsers where we + // know one. These don't have to be accurate -- the result of them + // being wrong would just be a slight flicker on the first wheel + // scroll (if it is large enough). + if (ie) { wheelPixelsPerUnit = -.53; } + else if (gecko) { wheelPixelsPerUnit = 15; } + else if (chrome) { wheelPixelsPerUnit = -.7; } + else if (safari) { wheelPixelsPerUnit = -1/3; } + + function wheelEventDelta(e) { + var dx = e.wheelDeltaX, dy = e.wheelDeltaY; + if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) { dx = e.detail; } + if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) { dy = e.detail; } + else if (dy == null) { dy = e.wheelDelta; } + return {x: dx, y: dy} + } + function wheelEventPixels(e) { + var delta = wheelEventDelta(e); + delta.x *= wheelPixelsPerUnit; + delta.y *= wheelPixelsPerUnit; + return delta + } + + function onScrollWheel(cm, e) { + var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y; + + var display = cm.display, scroll = display.scroller; + // Quit if there's nothing to scroll here + var canScrollX = scroll.scrollWidth > scroll.clientWidth; + var canScrollY = scroll.scrollHeight > scroll.clientHeight; + if (!(dx && canScrollX || dy && canScrollY)) { return } + + // Webkit browsers on OS X abort momentum scrolls when the target + // of the scroll event is removed from the scrollable element. + // This hack (see related code in patchDisplay) makes sure the + // element is kept around. + if (dy && mac && webkit) { + outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) { + for (var i = 0; i < view.length; i++) { + if (view[i].node == cur) { + cm.display.currentWheelTarget = cur; + break outer + } + } + } + } + + // On some browsers, horizontal scrolling will cause redraws to + // happen before the gutter has been realigned, causing it to + // wriggle around in a most unseemly way. When we have an + // estimated pixels/delta value, we just handle horizontal + // scrolling entirely here. It'll be slightly off from native, but + // better than glitching out. + if (dx && !gecko && !presto && wheelPixelsPerUnit != null) { + if (dy && canScrollY) + { updateScrollTop(cm, Math.max(0, scroll.scrollTop + dy * wheelPixelsPerUnit)); } + setScrollLeft(cm, Math.max(0, scroll.scrollLeft + dx * wheelPixelsPerUnit)); + // Only prevent default scrolling if vertical scrolling is + // actually possible. Otherwise, it causes vertical scroll + // jitter on OSX trackpads when deltaX is small and deltaY + // is large (issue #3579) + if (!dy || (dy && canScrollY)) + { e_preventDefault(e); } + display.wheelStartX = null; // Abort measurement, if in progress + return + } + + // 'Project' the visible viewport to cover the area that is being + // scrolled into view (if we know enough to estimate it). + if (dy && wheelPixelsPerUnit != null) { + var pixels = dy * wheelPixelsPerUnit; + var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight; + if (pixels < 0) { top = Math.max(0, top + pixels - 50); } + else { bot = Math.min(cm.doc.height, bot + pixels + 50); } + updateDisplaySimple(cm, {top: top, bottom: bot}); + } + + if (wheelSamples < 20) { + if (display.wheelStartX == null) { + display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop; + display.wheelDX = dx; display.wheelDY = dy; + setTimeout(function () { + if (display.wheelStartX == null) { return } + var movedX = scroll.scrollLeft - display.wheelStartX; + var movedY = scroll.scrollTop - display.wheelStartY; + var sample = (movedY && display.wheelDY && movedY / display.wheelDY) || + (movedX && display.wheelDX && movedX / display.wheelDX); + display.wheelStartX = display.wheelStartY = null; + if (!sample) { return } + wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1); + ++wheelSamples; + }, 200); + } else { + display.wheelDX += dx; display.wheelDY += dy; + } + } + } + + // Selection objects are immutable. A new one is created every time + // the selection changes. A selection is one or more non-overlapping + // (and non-touching) ranges, sorted, and an integer that indicates + // which one is the primary selection (the one that's scrolled into + // view, that getCursor returns, etc). + var Selection = function(ranges, primIndex) { + this.ranges = ranges; + this.primIndex = primIndex; + }; + + Selection.prototype.primary = function () { return this.ranges[this.primIndex] }; + + Selection.prototype.equals = function (other) { + if (other == this) { return true } + if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) { return false } + for (var i = 0; i < this.ranges.length; i++) { + var here = this.ranges[i], there = other.ranges[i]; + if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) { return false } + } + return true + }; + + Selection.prototype.deepCopy = function () { + var out = []; + for (var i = 0; i < this.ranges.length; i++) + { out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head)); } + return new Selection(out, this.primIndex) + }; + + Selection.prototype.somethingSelected = function () { + for (var i = 0; i < this.ranges.length; i++) + { if (!this.ranges[i].empty()) { return true } } + return false + }; + + Selection.prototype.contains = function (pos, end) { + if (!end) { end = pos; } + for (var i = 0; i < this.ranges.length; i++) { + var range = this.ranges[i]; + if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0) + { return i } + } + return -1 + }; + + var Range = function(anchor, head) { + this.anchor = anchor; this.head = head; + }; + + Range.prototype.from = function () { return minPos(this.anchor, this.head) }; + Range.prototype.to = function () { return maxPos(this.anchor, this.head) }; + Range.prototype.empty = function () { return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch }; + + // Take an unsorted, potentially overlapping set of ranges, and + // build a selection out of it. 'Consumes' ranges array (modifying + // it). + function normalizeSelection(cm, ranges, primIndex) { + var mayTouch = cm && cm.options.selectionsMayTouch; + var prim = ranges[primIndex]; + ranges.sort(function (a, b) { return cmp(a.from(), b.from()); }); + primIndex = indexOf(ranges, prim); + for (var i = 1; i < ranges.length; i++) { + var cur = ranges[i], prev = ranges[i - 1]; + var diff = cmp(prev.to(), cur.from()); + if (mayTouch && !cur.empty() ? diff > 0 : diff >= 0) { + var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to()); + var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head; + if (i <= primIndex) { --primIndex; } + ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to)); + } + } + return new Selection(ranges, primIndex) + } + + function simpleSelection(anchor, head) { + return new Selection([new Range(anchor, head || anchor)], 0) + } + + // Compute the position of the end of a change (its 'to' property + // refers to the pre-change end). + function changeEnd(change) { + if (!change.text) { return change.to } + return Pos(change.from.line + change.text.length - 1, + lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0)) + } + + // Adjust a position to refer to the post-change position of the + // same text, or the end of the change if the change covers it. + function adjustForChange(pos, change) { + if (cmp(pos, change.from) < 0) { return pos } + if (cmp(pos, change.to) <= 0) { return changeEnd(change) } + + var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch; + if (pos.line == change.to.line) { ch += changeEnd(change).ch - change.to.ch; } + return Pos(line, ch) + } + + function computeSelAfterChange(doc, change) { + var out = []; + for (var i = 0; i < doc.sel.ranges.length; i++) { + var range = doc.sel.ranges[i]; + out.push(new Range(adjustForChange(range.anchor, change), + adjustForChange(range.head, change))); + } + return normalizeSelection(doc.cm, out, doc.sel.primIndex) + } + + function offsetPos(pos, old, nw) { + if (pos.line == old.line) + { return Pos(nw.line, pos.ch - old.ch + nw.ch) } + else + { return Pos(nw.line + (pos.line - old.line), pos.ch) } + } + + // Used by replaceSelections to allow moving the selection to the + // start or around the replaced test. Hint may be "start" or "around". + function computeReplacedSel(doc, changes, hint) { + var out = []; + var oldPrev = Pos(doc.first, 0), newPrev = oldPrev; + for (var i = 0; i < changes.length; i++) { + var change = changes[i]; + var from = offsetPos(change.from, oldPrev, newPrev); + var to = offsetPos(changeEnd(change), oldPrev, newPrev); + oldPrev = change.to; + newPrev = to; + if (hint == "around") { + var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0; + out[i] = new Range(inv ? to : from, inv ? from : to); + } else { + out[i] = new Range(from, from); + } + } + return new Selection(out, doc.sel.primIndex) + } + + // Used to get the editor into a consistent state again when options change. + + function loadMode(cm) { + cm.doc.mode = getMode(cm.options, cm.doc.modeOption); + resetModeState(cm); + } + + function resetModeState(cm) { + cm.doc.iter(function (line) { + if (line.stateAfter) { line.stateAfter = null; } + if (line.styles) { line.styles = null; } + }); + cm.doc.modeFrontier = cm.doc.highlightFrontier = cm.doc.first; + startWorker(cm, 100); + cm.state.modeGen++; + if (cm.curOp) { regChange(cm); } + } + + // DOCUMENT DATA STRUCTURE + + // By default, updates that start and end at the beginning of a line + // are treated specially, in order to make the association of line + // widgets and marker elements with the text behave more intuitive. + function isWholeLineUpdate(doc, change) { + return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" && + (!doc.cm || doc.cm.options.wholeLineUpdateBefore) + } + + // Perform a change on the document data structure. + function updateDoc(doc, change, markedSpans, estimateHeight) { + function spansFor(n) {return markedSpans ? markedSpans[n] : null} + function update(line, text, spans) { + updateLine(line, text, spans, estimateHeight); + signalLater(line, "change", line, change); + } + function linesFor(start, end) { + var result = []; + for (var i = start; i < end; ++i) + { result.push(new Line(text[i], spansFor(i), estimateHeight)); } + return result + } + + var from = change.from, to = change.to, text = change.text; + var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line); + var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line; + + // Adjust the line structure + if (change.full) { + doc.insert(0, linesFor(0, text.length)); + doc.remove(text.length, doc.size - text.length); + } else if (isWholeLineUpdate(doc, change)) { + // This is a whole-line replace. Treated specially to make + // sure line objects move the way they are supposed to. + var added = linesFor(0, text.length - 1); + update(lastLine, lastLine.text, lastSpans); + if (nlines) { doc.remove(from.line, nlines); } + if (added.length) { doc.insert(from.line, added); } + } else if (firstLine == lastLine) { + if (text.length == 1) { + update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans); + } else { + var added$1 = linesFor(1, text.length - 1); + added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight)); + update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)); + doc.insert(from.line + 1, added$1); + } + } else if (text.length == 1) { + update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0)); + doc.remove(from.line + 1, nlines); + } else { + update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)); + update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans); + var added$2 = linesFor(1, text.length - 1); + if (nlines > 1) { doc.remove(from.line + 1, nlines - 1); } + doc.insert(from.line + 1, added$2); + } + + signalLater(doc, "change", doc, change); + } + + // Call f for all linked documents. + function linkedDocs(doc, f, sharedHistOnly) { + function propagate(doc, skip, sharedHist) { + if (doc.linked) { for (var i = 0; i < doc.linked.length; ++i) { + var rel = doc.linked[i]; + if (rel.doc == skip) { continue } + var shared = sharedHist && rel.sharedHist; + if (sharedHistOnly && !shared) { continue } + f(rel.doc, shared); + propagate(rel.doc, doc, shared); + } } + } + propagate(doc, null, true); + } + + // Attach a document to an editor. + function attachDoc(cm, doc) { + if (doc.cm) { throw new Error("This document is already in use.") } + cm.doc = doc; + doc.cm = cm; + estimateLineHeights(cm); + loadMode(cm); + setDirectionClass(cm); + if (!cm.options.lineWrapping) { findMaxLine(cm); } + cm.options.mode = doc.modeOption; + regChange(cm); + } + + function setDirectionClass(cm) { + (cm.doc.direction == "rtl" ? addClass : rmClass)(cm.display.lineDiv, "CodeMirror-rtl"); + } + + function directionChanged(cm) { + runInOp(cm, function () { + setDirectionClass(cm); + regChange(cm); + }); + } + + function History(startGen) { + // Arrays of change events and selections. Doing something adds an + // event to done and clears undo. Undoing moves events from done + // to undone, redoing moves them in the other direction. + this.done = []; this.undone = []; + this.undoDepth = Infinity; + // Used to track when changes can be merged into a single undo + // event + this.lastModTime = this.lastSelTime = 0; + this.lastOp = this.lastSelOp = null; + this.lastOrigin = this.lastSelOrigin = null; + // Used by the isClean() method + this.generation = this.maxGeneration = startGen || 1; + } + + // Create a history change event from an updateDoc-style change + // object. + function historyChangeFromChange(doc, change) { + var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)}; + attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); + linkedDocs(doc, function (doc) { return attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); }, true); + return histChange + } + + // Pop all selection events off the end of a history array. Stop at + // a change event. + function clearSelectionEvents(array) { + while (array.length) { + var last = lst(array); + if (last.ranges) { array.pop(); } + else { break } + } + } + + // Find the top change event in the history. Pop off selection + // events that are in the way. + function lastChangeEvent(hist, force) { + if (force) { + clearSelectionEvents(hist.done); + return lst(hist.done) + } else if (hist.done.length && !lst(hist.done).ranges) { + return lst(hist.done) + } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) { + hist.done.pop(); + return lst(hist.done) + } + } + + // Register a change in the history. Merges changes that are within + // a single operation, or are close together with an origin that + // allows merging (starting with "+") into a single event. + function addChangeToHistory(doc, change, selAfter, opId) { + var hist = doc.history; + hist.undone.length = 0; + var time = +new Date, cur; + var last; + + if ((hist.lastOp == opId || + hist.lastOrigin == change.origin && change.origin && + ((change.origin.charAt(0) == "+" && hist.lastModTime > time - (doc.cm ? doc.cm.options.historyEventDelay : 500)) || + change.origin.charAt(0) == "*")) && + (cur = lastChangeEvent(hist, hist.lastOp == opId))) { + // Merge this change into the last event + last = lst(cur.changes); + if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) { + // Optimized case for simple insertion -- don't want to add + // new changesets for every character typed + last.to = changeEnd(change); + } else { + // Add new sub-event + cur.changes.push(historyChangeFromChange(doc, change)); + } + } else { + // Can not be merged, start a new event. + var before = lst(hist.done); + if (!before || !before.ranges) + { pushSelectionToHistory(doc.sel, hist.done); } + cur = {changes: [historyChangeFromChange(doc, change)], + generation: hist.generation}; + hist.done.push(cur); + while (hist.done.length > hist.undoDepth) { + hist.done.shift(); + if (!hist.done[0].ranges) { hist.done.shift(); } + } + } + hist.done.push(selAfter); + hist.generation = ++hist.maxGeneration; + hist.lastModTime = hist.lastSelTime = time; + hist.lastOp = hist.lastSelOp = opId; + hist.lastOrigin = hist.lastSelOrigin = change.origin; + + if (!last) { signal(doc, "historyAdded"); } + } + + function selectionEventCanBeMerged(doc, origin, prev, sel) { + var ch = origin.charAt(0); + return ch == "*" || + ch == "+" && + prev.ranges.length == sel.ranges.length && + prev.somethingSelected() == sel.somethingSelected() && + new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500) + } + + // Called whenever the selection changes, sets the new selection as + // the pending selection in the history, and pushes the old pending + // selection into the 'done' array when it was significantly + // different (in number of selected ranges, emptiness, or time). + function addSelectionToHistory(doc, sel, opId, options) { + var hist = doc.history, origin = options && options.origin; + + // A new event is started when the previous origin does not match + // the current, or the origins don't allow matching. Origins + // starting with * are always merged, those starting with + are + // merged when similar and close together in time. + if (opId == hist.lastSelOp || + (origin && hist.lastSelOrigin == origin && + (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin || + selectionEventCanBeMerged(doc, origin, lst(hist.done), sel)))) + { hist.done[hist.done.length - 1] = sel; } + else + { pushSelectionToHistory(sel, hist.done); } + + hist.lastSelTime = +new Date; + hist.lastSelOrigin = origin; + hist.lastSelOp = opId; + if (options && options.clearRedo !== false) + { clearSelectionEvents(hist.undone); } + } + + function pushSelectionToHistory(sel, dest) { + var top = lst(dest); + if (!(top && top.ranges && top.equals(sel))) + { dest.push(sel); } + } + + // Used to store marked span information in the history. + function attachLocalSpans(doc, change, from, to) { + var existing = change["spans_" + doc.id], n = 0; + doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function (line) { + if (line.markedSpans) + { (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans; } + ++n; + }); + } + + // When un/re-doing restores text containing marked spans, those + // that have been explicitly cleared should not be restored. + function removeClearedSpans(spans) { + if (!spans) { return null } + var out; + for (var i = 0; i < spans.length; ++i) { + if (spans[i].marker.explicitlyCleared) { if (!out) { out = spans.slice(0, i); } } + else if (out) { out.push(spans[i]); } + } + return !out ? spans : out.length ? out : null + } + + // Retrieve and filter the old marked spans stored in a change event. + function getOldSpans(doc, change) { + var found = change["spans_" + doc.id]; + if (!found) { return null } + var nw = []; + for (var i = 0; i < change.text.length; ++i) + { nw.push(removeClearedSpans(found[i])); } + return nw + } + + // Used for un/re-doing changes from the history. Combines the + // result of computing the existing spans with the set of spans that + // existed in the history (so that deleting around a span and then + // undoing brings back the span). + function mergeOldSpans(doc, change) { + var old = getOldSpans(doc, change); + var stretched = stretchSpansOverChange(doc, change); + if (!old) { return stretched } + if (!stretched) { return old } + + for (var i = 0; i < old.length; ++i) { + var oldCur = old[i], stretchCur = stretched[i]; + if (oldCur && stretchCur) { + spans: for (var j = 0; j < stretchCur.length; ++j) { + var span = stretchCur[j]; + for (var k = 0; k < oldCur.length; ++k) + { if (oldCur[k].marker == span.marker) { continue spans } } + oldCur.push(span); + } + } else if (stretchCur) { + old[i] = stretchCur; + } + } + return old + } + + // Used both to provide a JSON-safe object in .getHistory, and, when + // detaching a document, to split the history in two + function copyHistoryArray(events, newGroup, instantiateSel) { + var copy = []; + for (var i = 0; i < events.length; ++i) { + var event = events[i]; + if (event.ranges) { + copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event); + continue + } + var changes = event.changes, newChanges = []; + copy.push({changes: newChanges}); + for (var j = 0; j < changes.length; ++j) { + var change = changes[j], m = (void 0); + newChanges.push({from: change.from, to: change.to, text: change.text}); + if (newGroup) { for (var prop in change) { if (m = prop.match(/^spans_(\d+)$/)) { + if (indexOf(newGroup, Number(m[1])) > -1) { + lst(newChanges)[prop] = change[prop]; + delete change[prop]; + } + } } } + } + } + return copy + } + + // The 'scroll' parameter given to many of these indicated whether + // the new cursor position should be scrolled into view after + // modifying the selection. + + // If shift is held or the extend flag is set, extends a range to + // include a given position (and optionally a second position). + // Otherwise, simply returns the range between the given positions. + // Used for cursor motion and such. + function extendRange(range, head, other, extend) { + if (extend) { + var anchor = range.anchor; + if (other) { + var posBefore = cmp(head, anchor) < 0; + if (posBefore != (cmp(other, anchor) < 0)) { + anchor = head; + head = other; + } else if (posBefore != (cmp(head, other) < 0)) { + head = other; + } + } + return new Range(anchor, head) + } else { + return new Range(other || head, head) + } + } + + // Extend the primary selection range, discard the rest. + function extendSelection(doc, head, other, options, extend) { + if (extend == null) { extend = doc.cm && (doc.cm.display.shift || doc.extend); } + setSelection(doc, new Selection([extendRange(doc.sel.primary(), head, other, extend)], 0), options); + } + + // Extend all selections (pos is an array of selections with length + // equal the number of selections) + function extendSelections(doc, heads, options) { + var out = []; + var extend = doc.cm && (doc.cm.display.shift || doc.extend); + for (var i = 0; i < doc.sel.ranges.length; i++) + { out[i] = extendRange(doc.sel.ranges[i], heads[i], null, extend); } + var newSel = normalizeSelection(doc.cm, out, doc.sel.primIndex); + setSelection(doc, newSel, options); + } + + // Updates a single range in the selection. + function replaceOneSelection(doc, i, range, options) { + var ranges = doc.sel.ranges.slice(0); + ranges[i] = range; + setSelection(doc, normalizeSelection(doc.cm, ranges, doc.sel.primIndex), options); + } + + // Reset the selection to a single range. + function setSimpleSelection(doc, anchor, head, options) { + setSelection(doc, simpleSelection(anchor, head), options); + } + + // Give beforeSelectionChange handlers a change to influence a + // selection update. + function filterSelectionChange(doc, sel, options) { + var obj = { + ranges: sel.ranges, + update: function(ranges) { + this.ranges = []; + for (var i = 0; i < ranges.length; i++) + { this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor), + clipPos(doc, ranges[i].head)); } + }, + origin: options && options.origin + }; + signal(doc, "beforeSelectionChange", doc, obj); + if (doc.cm) { signal(doc.cm, "beforeSelectionChange", doc.cm, obj); } + if (obj.ranges != sel.ranges) { return normalizeSelection(doc.cm, obj.ranges, obj.ranges.length - 1) } + else { return sel } + } + + function setSelectionReplaceHistory(doc, sel, options) { + var done = doc.history.done, last = lst(done); + if (last && last.ranges) { + done[done.length - 1] = sel; + setSelectionNoUndo(doc, sel, options); + } else { + setSelection(doc, sel, options); + } + } + + // Set a new selection. + function setSelection(doc, sel, options) { + setSelectionNoUndo(doc, sel, options); + addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options); + } + + function setSelectionNoUndo(doc, sel, options) { + if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange")) + { sel = filterSelectionChange(doc, sel, options); } + + var bias = options && options.bias || + (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1); + setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true)); + + if (!(options && options.scroll === false) && doc.cm && doc.cm.getOption("readOnly") != "nocursor") + { ensureCursorVisible(doc.cm); } + } + + function setSelectionInner(doc, sel) { + if (sel.equals(doc.sel)) { return } + + doc.sel = sel; + + if (doc.cm) { + doc.cm.curOp.updateInput = 1; + doc.cm.curOp.selectionChanged = true; + signalCursorActivity(doc.cm); + } + signalLater(doc, "cursorActivity", doc); + } + + // Verify that the selection does not partially select any atomic + // marked ranges. + function reCheckSelection(doc) { + setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false)); + } + + // Return a selection that does not partially select any atomic + // ranges. + function skipAtomicInSelection(doc, sel, bias, mayClear) { + var out; + for (var i = 0; i < sel.ranges.length; i++) { + var range = sel.ranges[i]; + var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i]; + var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear); + var newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear); + if (out || newAnchor != range.anchor || newHead != range.head) { + if (!out) { out = sel.ranges.slice(0, i); } + out[i] = new Range(newAnchor, newHead); + } + } + return out ? normalizeSelection(doc.cm, out, sel.primIndex) : sel + } + + function skipAtomicInner(doc, pos, oldPos, dir, mayClear) { + var line = getLine(doc, pos.line); + if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) { + var sp = line.markedSpans[i], m = sp.marker; + + // Determine if we should prevent the cursor being placed to the left/right of an atomic marker + // Historically this was determined using the inclusiveLeft/Right option, but the new way to control it + // is with selectLeft/Right + var preventCursorLeft = ("selectLeft" in m) ? !m.selectLeft : m.inclusiveLeft; + var preventCursorRight = ("selectRight" in m) ? !m.selectRight : m.inclusiveRight; + + if ((sp.from == null || (preventCursorLeft ? sp.from <= pos.ch : sp.from < pos.ch)) && + (sp.to == null || (preventCursorRight ? sp.to >= pos.ch : sp.to > pos.ch))) { + if (mayClear) { + signal(m, "beforeCursorEnter"); + if (m.explicitlyCleared) { + if (!line.markedSpans) { break } + else {--i; continue} + } + } + if (!m.atomic) { continue } + + if (oldPos) { + var near = m.find(dir < 0 ? 1 : -1), diff = (void 0); + if (dir < 0 ? preventCursorRight : preventCursorLeft) + { near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null); } + if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0)) + { return skipAtomicInner(doc, near, pos, dir, mayClear) } + } + + var far = m.find(dir < 0 ? -1 : 1); + if (dir < 0 ? preventCursorLeft : preventCursorRight) + { far = movePos(doc, far, dir, far.line == pos.line ? line : null); } + return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null + } + } } + return pos + } + + // Ensure a given position is not inside an atomic range. + function skipAtomic(doc, pos, oldPos, bias, mayClear) { + var dir = bias || 1; + var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) || + (!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) || + skipAtomicInner(doc, pos, oldPos, -dir, mayClear) || + (!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true)); + if (!found) { + doc.cantEdit = true; + return Pos(doc.first, 0) + } + return found + } + + function movePos(doc, pos, dir, line) { + if (dir < 0 && pos.ch == 0) { + if (pos.line > doc.first) { return clipPos(doc, Pos(pos.line - 1)) } + else { return null } + } else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) { + if (pos.line < doc.first + doc.size - 1) { return Pos(pos.line + 1, 0) } + else { return null } + } else { + return new Pos(pos.line, pos.ch + dir) + } + } + + function selectAll(cm) { + cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll); + } + + // UPDATING + + // Allow "beforeChange" event handlers to influence a change + function filterChange(doc, change, update) { + var obj = { + canceled: false, + from: change.from, + to: change.to, + text: change.text, + origin: change.origin, + cancel: function () { return obj.canceled = true; } + }; + if (update) { obj.update = function (from, to, text, origin) { + if (from) { obj.from = clipPos(doc, from); } + if (to) { obj.to = clipPos(doc, to); } + if (text) { obj.text = text; } + if (origin !== undefined) { obj.origin = origin; } + }; } + signal(doc, "beforeChange", doc, obj); + if (doc.cm) { signal(doc.cm, "beforeChange", doc.cm, obj); } + + if (obj.canceled) { + if (doc.cm) { doc.cm.curOp.updateInput = 2; } + return null + } + return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin} + } + + // Apply a change to a document, and add it to the document's + // history, and propagating it to all linked documents. + function makeChange(doc, change, ignoreReadOnly) { + if (doc.cm) { + if (!doc.cm.curOp) { return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly) } + if (doc.cm.state.suppressEdits) { return } + } + + if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) { + change = filterChange(doc, change, true); + if (!change) { return } + } + + // Possibly split or suppress the update based on the presence + // of read-only spans in its range. + var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to); + if (split) { + for (var i = split.length - 1; i >= 0; --i) + { makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text, origin: change.origin}); } + } else { + makeChangeInner(doc, change); + } + } + + function makeChangeInner(doc, change) { + if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) { return } + var selAfter = computeSelAfterChange(doc, change); + addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN); + + makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change)); + var rebased = []; + + linkedDocs(doc, function (doc, sharedHist) { + if (!sharedHist && indexOf(rebased, doc.history) == -1) { + rebaseHist(doc.history, change); + rebased.push(doc.history); + } + makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change)); + }); + } + + // Revert a change stored in a document's history. + function makeChangeFromHistory(doc, type, allowSelectionOnly) { + var suppress = doc.cm && doc.cm.state.suppressEdits; + if (suppress && !allowSelectionOnly) { return } + + var hist = doc.history, event, selAfter = doc.sel; + var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done; + + // Verify that there is a useable event (so that ctrl-z won't + // needlessly clear selection events) + var i = 0; + for (; i < source.length; i++) { + event = source[i]; + if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges) + { break } + } + if (i == source.length) { return } + hist.lastOrigin = hist.lastSelOrigin = null; + + for (;;) { + event = source.pop(); + if (event.ranges) { + pushSelectionToHistory(event, dest); + if (allowSelectionOnly && !event.equals(doc.sel)) { + setSelection(doc, event, {clearRedo: false}); + return + } + selAfter = event; + } else if (suppress) { + source.push(event); + return + } else { break } + } + + // Build up a reverse change object to add to the opposite history + // stack (redo when undoing, and vice versa). + var antiChanges = []; + pushSelectionToHistory(selAfter, dest); + dest.push({changes: antiChanges, generation: hist.generation}); + hist.generation = event.generation || ++hist.maxGeneration; + + var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange"); + + var loop = function ( i ) { + var change = event.changes[i]; + change.origin = type; + if (filter && !filterChange(doc, change, false)) { + source.length = 0; + return {} + } + + antiChanges.push(historyChangeFromChange(doc, change)); + + var after = i ? computeSelAfterChange(doc, change) : lst(source); + makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change)); + if (!i && doc.cm) { doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)}); } + var rebased = []; + + // Propagate to the linked documents + linkedDocs(doc, function (doc, sharedHist) { + if (!sharedHist && indexOf(rebased, doc.history) == -1) { + rebaseHist(doc.history, change); + rebased.push(doc.history); + } + makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change)); + }); + }; + + for (var i$1 = event.changes.length - 1; i$1 >= 0; --i$1) { + var returned = loop( i$1 ); + + if ( returned ) return returned.v; + } + } + + // Sub-views need their line numbers shifted when text is added + // above or below them in the parent document. + function shiftDoc(doc, distance) { + if (distance == 0) { return } + doc.first += distance; + doc.sel = new Selection(map(doc.sel.ranges, function (range) { return new Range( + Pos(range.anchor.line + distance, range.anchor.ch), + Pos(range.head.line + distance, range.head.ch) + ); }), doc.sel.primIndex); + if (doc.cm) { + regChange(doc.cm, doc.first, doc.first - distance, distance); + for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++) + { regLineChange(doc.cm, l, "gutter"); } + } + } + + // More lower-level change function, handling only a single document + // (not linked ones). + function makeChangeSingleDoc(doc, change, selAfter, spans) { + if (doc.cm && !doc.cm.curOp) + { return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans) } + + if (change.to.line < doc.first) { + shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line)); + return + } + if (change.from.line > doc.lastLine()) { return } + + // Clip the change to the size of this doc + if (change.from.line < doc.first) { + var shift = change.text.length - 1 - (doc.first - change.from.line); + shiftDoc(doc, shift); + change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch), + text: [lst(change.text)], origin: change.origin}; + } + var last = doc.lastLine(); + if (change.to.line > last) { + change = {from: change.from, to: Pos(last, getLine(doc, last).text.length), + text: [change.text[0]], origin: change.origin}; + } + + change.removed = getBetween(doc, change.from, change.to); + + if (!selAfter) { selAfter = computeSelAfterChange(doc, change); } + if (doc.cm) { makeChangeSingleDocInEditor(doc.cm, change, spans); } + else { updateDoc(doc, change, spans); } + setSelectionNoUndo(doc, selAfter, sel_dontScroll); + + if (doc.cantEdit && skipAtomic(doc, Pos(doc.firstLine(), 0))) + { doc.cantEdit = false; } + } + + // Handle the interaction of a change to a document with the editor + // that this document is part of. + function makeChangeSingleDocInEditor(cm, change, spans) { + var doc = cm.doc, display = cm.display, from = change.from, to = change.to; + + var recomputeMaxLength = false, checkWidthStart = from.line; + if (!cm.options.lineWrapping) { + checkWidthStart = lineNo(visualLine(getLine(doc, from.line))); + doc.iter(checkWidthStart, to.line + 1, function (line) { + if (line == display.maxLine) { + recomputeMaxLength = true; + return true + } + }); + } + + if (doc.sel.contains(change.from, change.to) > -1) + { signalCursorActivity(cm); } + + updateDoc(doc, change, spans, estimateHeight(cm)); + + if (!cm.options.lineWrapping) { + doc.iter(checkWidthStart, from.line + change.text.length, function (line) { + var len = lineLength(line); + if (len > display.maxLineLength) { + display.maxLine = line; + display.maxLineLength = len; + display.maxLineChanged = true; + recomputeMaxLength = false; + } + }); + if (recomputeMaxLength) { cm.curOp.updateMaxLine = true; } + } + + retreatFrontier(doc, from.line); + startWorker(cm, 400); + + var lendiff = change.text.length - (to.line - from.line) - 1; + // Remember that these lines changed, for updating the display + if (change.full) + { regChange(cm); } + else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change)) + { regLineChange(cm, from.line, "text"); } + else + { regChange(cm, from.line, to.line + 1, lendiff); } + + var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change"); + if (changeHandler || changesHandler) { + var obj = { + from: from, to: to, + text: change.text, + removed: change.removed, + origin: change.origin + }; + if (changeHandler) { signalLater(cm, "change", cm, obj); } + if (changesHandler) { (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj); } + } + cm.display.selForContextMenu = null; + } + + function replaceRange(doc, code, from, to, origin) { + var assign; + + if (!to) { to = from; } + if (cmp(to, from) < 0) { (assign = [to, from], from = assign[0], to = assign[1]); } + if (typeof code == "string") { code = doc.splitLines(code); } + makeChange(doc, {from: from, to: to, text: code, origin: origin}); + } + + // Rebasing/resetting history to deal with externally-sourced changes + + function rebaseHistSelSingle(pos, from, to, diff) { + if (to < pos.line) { + pos.line += diff; + } else if (from < pos.line) { + pos.line = from; + pos.ch = 0; + } + } + + // Tries to rebase an array of history events given a change in the + // document. If the change touches the same lines as the event, the + // event, and everything 'behind' it, is discarded. If the change is + // before the event, the event's positions are updated. Uses a + // copy-on-write scheme for the positions, to avoid having to + // reallocate them all on every rebase, but also avoid problems with + // shared position objects being unsafely updated. + function rebaseHistArray(array, from, to, diff) { + for (var i = 0; i < array.length; ++i) { + var sub = array[i], ok = true; + if (sub.ranges) { + if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; } + for (var j = 0; j < sub.ranges.length; j++) { + rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff); + rebaseHistSelSingle(sub.ranges[j].head, from, to, diff); + } + continue + } + for (var j$1 = 0; j$1 < sub.changes.length; ++j$1) { + var cur = sub.changes[j$1]; + if (to < cur.from.line) { + cur.from = Pos(cur.from.line + diff, cur.from.ch); + cur.to = Pos(cur.to.line + diff, cur.to.ch); + } else if (from <= cur.to.line) { + ok = false; + break + } + } + if (!ok) { + array.splice(0, i + 1); + i = 0; + } + } + } + + function rebaseHist(hist, change) { + var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1; + rebaseHistArray(hist.done, from, to, diff); + rebaseHistArray(hist.undone, from, to, diff); + } + + // Utility for applying a change to a line by handle or number, + // returning the number and optionally registering the line as + // changed. + function changeLine(doc, handle, changeType, op) { + var no = handle, line = handle; + if (typeof handle == "number") { line = getLine(doc, clipLine(doc, handle)); } + else { no = lineNo(handle); } + if (no == null) { return null } + if (op(line, no) && doc.cm) { regLineChange(doc.cm, no, changeType); } + return line + } + + // The document is represented as a BTree consisting of leaves, with + // chunk of lines in them, and branches, with up to ten leaves or + // other branch nodes below them. The top node is always a branch + // node, and is the document object itself (meaning it has + // additional methods and properties). + // + // All nodes have parent links. The tree is used both to go from + // line numbers to line objects, and to go from objects to numbers. + // It also indexes by height, and is used to convert between height + // and line object, and to find the total height of the document. + // + // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html + + function LeafChunk(lines) { + this.lines = lines; + this.parent = null; + var height = 0; + for (var i = 0; i < lines.length; ++i) { + lines[i].parent = this; + height += lines[i].height; + } + this.height = height; + } + + LeafChunk.prototype = { + chunkSize: function() { return this.lines.length }, + + // Remove the n lines at offset 'at'. + removeInner: function(at, n) { + for (var i = at, e = at + n; i < e; ++i) { + var line = this.lines[i]; + this.height -= line.height; + cleanUpLine(line); + signalLater(line, "delete"); + } + this.lines.splice(at, n); + }, + + // Helper used to collapse a small branch into a single leaf. + collapse: function(lines) { + lines.push.apply(lines, this.lines); + }, + + // Insert the given array of lines at offset 'at', count them as + // having the given height. + insertInner: function(at, lines, height) { + this.height += height; + this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at)); + for (var i = 0; i < lines.length; ++i) { lines[i].parent = this; } + }, + + // Used to iterate over a part of the tree. + iterN: function(at, n, op) { + for (var e = at + n; at < e; ++at) + { if (op(this.lines[at])) { return true } } + } + }; + + function BranchChunk(children) { + this.children = children; + var size = 0, height = 0; + for (var i = 0; i < children.length; ++i) { + var ch = children[i]; + size += ch.chunkSize(); height += ch.height; + ch.parent = this; + } + this.size = size; + this.height = height; + this.parent = null; + } + + BranchChunk.prototype = { + chunkSize: function() { return this.size }, + + removeInner: function(at, n) { + this.size -= n; + for (var i = 0; i < this.children.length; ++i) { + var child = this.children[i], sz = child.chunkSize(); + if (at < sz) { + var rm = Math.min(n, sz - at), oldHeight = child.height; + child.removeInner(at, rm); + this.height -= oldHeight - child.height; + if (sz == rm) { this.children.splice(i--, 1); child.parent = null; } + if ((n -= rm) == 0) { break } + at = 0; + } else { at -= sz; } + } + // If the result is smaller than 25 lines, ensure that it is a + // single leaf node. + if (this.size - n < 25 && + (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) { + var lines = []; + this.collapse(lines); + this.children = [new LeafChunk(lines)]; + this.children[0].parent = this; + } + }, + + collapse: function(lines) { + for (var i = 0; i < this.children.length; ++i) { this.children[i].collapse(lines); } + }, + + insertInner: function(at, lines, height) { + this.size += lines.length; + this.height += height; + for (var i = 0; i < this.children.length; ++i) { + var child = this.children[i], sz = child.chunkSize(); + if (at <= sz) { + child.insertInner(at, lines, height); + if (child.lines && child.lines.length > 50) { + // To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced. + // Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest. + var remaining = child.lines.length % 25 + 25; + for (var pos = remaining; pos < child.lines.length;) { + var leaf = new LeafChunk(child.lines.slice(pos, pos += 25)); + child.height -= leaf.height; + this.children.splice(++i, 0, leaf); + leaf.parent = this; + } + child.lines = child.lines.slice(0, remaining); + this.maybeSpill(); + } + break + } + at -= sz; + } + }, + + // When a node has grown, check whether it should be split. + maybeSpill: function() { + if (this.children.length <= 10) { return } + var me = this; + do { + var spilled = me.children.splice(me.children.length - 5, 5); + var sibling = new BranchChunk(spilled); + if (!me.parent) { // Become the parent node + var copy = new BranchChunk(me.children); + copy.parent = me; + me.children = [copy, sibling]; + me = copy; + } else { + me.size -= sibling.size; + me.height -= sibling.height; + var myIndex = indexOf(me.parent.children, me); + me.parent.children.splice(myIndex + 1, 0, sibling); + } + sibling.parent = me.parent; + } while (me.children.length > 10) + me.parent.maybeSpill(); + }, + + iterN: function(at, n, op) { + for (var i = 0; i < this.children.length; ++i) { + var child = this.children[i], sz = child.chunkSize(); + if (at < sz) { + var used = Math.min(n, sz - at); + if (child.iterN(at, used, op)) { return true } + if ((n -= used) == 0) { break } + at = 0; + } else { at -= sz; } + } + } + }; + + // Line widgets are block elements displayed above or below a line. + + var LineWidget = function(doc, node, options) { + if (options) { for (var opt in options) { if (options.hasOwnProperty(opt)) + { this[opt] = options[opt]; } } } + this.doc = doc; + this.node = node; + }; + + LineWidget.prototype.clear = function () { + var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line); + if (no == null || !ws) { return } + for (var i = 0; i < ws.length; ++i) { if (ws[i] == this) { ws.splice(i--, 1); } } + if (!ws.length) { line.widgets = null; } + var height = widgetHeight(this); + updateLineHeight(line, Math.max(0, line.height - height)); + if (cm) { + runInOp(cm, function () { + adjustScrollWhenAboveVisible(cm, line, -height); + regLineChange(cm, no, "widget"); + }); + signalLater(cm, "lineWidgetCleared", cm, this, no); + } + }; + + LineWidget.prototype.changed = function () { + var this$1 = this; + + var oldH = this.height, cm = this.doc.cm, line = this.line; + this.height = null; + var diff = widgetHeight(this) - oldH; + if (!diff) { return } + if (!lineIsHidden(this.doc, line)) { updateLineHeight(line, line.height + diff); } + if (cm) { + runInOp(cm, function () { + cm.curOp.forceUpdate = true; + adjustScrollWhenAboveVisible(cm, line, diff); + signalLater(cm, "lineWidgetChanged", cm, this$1, lineNo(line)); + }); + } + }; + eventMixin(LineWidget); + + function adjustScrollWhenAboveVisible(cm, line, diff) { + if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop)) + { addToScrollTop(cm, diff); } + } + + function addLineWidget(doc, handle, node, options) { + var widget = new LineWidget(doc, node, options); + var cm = doc.cm; + if (cm && widget.noHScroll) { cm.display.alignWidgets = true; } + changeLine(doc, handle, "widget", function (line) { + var widgets = line.widgets || (line.widgets = []); + if (widget.insertAt == null) { widgets.push(widget); } + else { widgets.splice(Math.min(widgets.length, Math.max(0, widget.insertAt)), 0, widget); } + widget.line = line; + if (cm && !lineIsHidden(doc, line)) { + var aboveVisible = heightAtLine(line) < doc.scrollTop; + updateLineHeight(line, line.height + widgetHeight(widget)); + if (aboveVisible) { addToScrollTop(cm, widget.height); } + cm.curOp.forceUpdate = true; + } + return true + }); + if (cm) { signalLater(cm, "lineWidgetAdded", cm, widget, typeof handle == "number" ? handle : lineNo(handle)); } + return widget + } + + // TEXTMARKERS + + // Created with markText and setBookmark methods. A TextMarker is a + // handle that can be used to clear or find a marked position in the + // document. Line objects hold arrays (markedSpans) containing + // {from, to, marker} object pointing to such marker objects, and + // indicating that such a marker is present on that line. Multiple + // lines may point to the same marker when it spans across lines. + // The spans will have null for their from/to properties when the + // marker continues beyond the start/end of the line. Markers have + // links back to the lines they currently touch. + + // Collapsed markers have unique ids, in order to be able to order + // them, which is needed for uniquely determining an outer marker + // when they overlap (they may nest, but not partially overlap). + var nextMarkerId = 0; + + var TextMarker = function(doc, type) { + this.lines = []; + this.type = type; + this.doc = doc; + this.id = ++nextMarkerId; + }; + + // Clear the marker. + TextMarker.prototype.clear = function () { + if (this.explicitlyCleared) { return } + var cm = this.doc.cm, withOp = cm && !cm.curOp; + if (withOp) { startOperation(cm); } + if (hasHandler(this, "clear")) { + var found = this.find(); + if (found) { signalLater(this, "clear", found.from, found.to); } + } + var min = null, max = null; + for (var i = 0; i < this.lines.length; ++i) { + var line = this.lines[i]; + var span = getMarkedSpanFor(line.markedSpans, this); + if (cm && !this.collapsed) { regLineChange(cm, lineNo(line), "text"); } + else if (cm) { + if (span.to != null) { max = lineNo(line); } + if (span.from != null) { min = lineNo(line); } + } + line.markedSpans = removeMarkedSpan(line.markedSpans, span); + if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm) + { updateLineHeight(line, textHeight(cm.display)); } + } + if (cm && this.collapsed && !cm.options.lineWrapping) { for (var i$1 = 0; i$1 < this.lines.length; ++i$1) { + var visual = visualLine(this.lines[i$1]), len = lineLength(visual); + if (len > cm.display.maxLineLength) { + cm.display.maxLine = visual; + cm.display.maxLineLength = len; + cm.display.maxLineChanged = true; + } + } } + + if (min != null && cm && this.collapsed) { regChange(cm, min, max + 1); } + this.lines.length = 0; + this.explicitlyCleared = true; + if (this.atomic && this.doc.cantEdit) { + this.doc.cantEdit = false; + if (cm) { reCheckSelection(cm.doc); } + } + if (cm) { signalLater(cm, "markerCleared", cm, this, min, max); } + if (withOp) { endOperation(cm); } + if (this.parent) { this.parent.clear(); } + }; + + // Find the position of the marker in the document. Returns a {from, + // to} object by default. Side can be passed to get a specific side + // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the + // Pos objects returned contain a line object, rather than a line + // number (used to prevent looking up the same line twice). + TextMarker.prototype.find = function (side, lineObj) { + if (side == null && this.type == "bookmark") { side = 1; } + var from, to; + for (var i = 0; i < this.lines.length; ++i) { + var line = this.lines[i]; + var span = getMarkedSpanFor(line.markedSpans, this); + if (span.from != null) { + from = Pos(lineObj ? line : lineNo(line), span.from); + if (side == -1) { return from } + } + if (span.to != null) { + to = Pos(lineObj ? line : lineNo(line), span.to); + if (side == 1) { return to } + } + } + return from && {from: from, to: to} + }; + + // Signals that the marker's widget changed, and surrounding layout + // should be recomputed. + TextMarker.prototype.changed = function () { + var this$1 = this; + + var pos = this.find(-1, true), widget = this, cm = this.doc.cm; + if (!pos || !cm) { return } + runInOp(cm, function () { + var line = pos.line, lineN = lineNo(pos.line); + var view = findViewForLine(cm, lineN); + if (view) { + clearLineMeasurementCacheFor(view); + cm.curOp.selectionChanged = cm.curOp.forceUpdate = true; + } + cm.curOp.updateMaxLine = true; + if (!lineIsHidden(widget.doc, line) && widget.height != null) { + var oldHeight = widget.height; + widget.height = null; + var dHeight = widgetHeight(widget) - oldHeight; + if (dHeight) + { updateLineHeight(line, line.height + dHeight); } + } + signalLater(cm, "markerChanged", cm, this$1); + }); + }; + + TextMarker.prototype.attachLine = function (line) { + if (!this.lines.length && this.doc.cm) { + var op = this.doc.cm.curOp; + if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1) + { (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this); } + } + this.lines.push(line); + }; + + TextMarker.prototype.detachLine = function (line) { + this.lines.splice(indexOf(this.lines, line), 1); + if (!this.lines.length && this.doc.cm) { + var op = this.doc.cm.curOp + ;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this); + } + }; + eventMixin(TextMarker); + + // Create a marker, wire it up to the right lines, and + function markText(doc, from, to, options, type) { + // Shared markers (across linked documents) are handled separately + // (markTextShared will call out to this again, once per + // document). + if (options && options.shared) { return markTextShared(doc, from, to, options, type) } + // Ensure we are in an operation. + if (doc.cm && !doc.cm.curOp) { return operation(doc.cm, markText)(doc, from, to, options, type) } + + var marker = new TextMarker(doc, type), diff = cmp(from, to); + if (options) { copyObj(options, marker, false); } + // Don't connect empty markers unless clearWhenEmpty is false + if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false) + { return marker } + if (marker.replacedWith) { + // Showing up as a widget implies collapsed (widget replaces text) + marker.collapsed = true; + marker.widgetNode = eltP("span", [marker.replacedWith], "CodeMirror-widget"); + if (!options.handleMouseEvents) { marker.widgetNode.setAttribute("cm-ignore-events", "true"); } + if (options.insertLeft) { marker.widgetNode.insertLeft = true; } + } + if (marker.collapsed) { + if (conflictingCollapsedRange(doc, from.line, from, to, marker) || + from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker)) + { throw new Error("Inserting collapsed marker partially overlapping an existing one") } + seeCollapsedSpans(); + } + + if (marker.addToHistory) + { addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN); } + + var curLine = from.line, cm = doc.cm, updateMaxLine; + doc.iter(curLine, to.line + 1, function (line) { + if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine) + { updateMaxLine = true; } + if (marker.collapsed && curLine != from.line) { updateLineHeight(line, 0); } + addMarkedSpan(line, new MarkedSpan(marker, + curLine == from.line ? from.ch : null, + curLine == to.line ? to.ch : null)); + ++curLine; + }); + // lineIsHidden depends on the presence of the spans, so needs a second pass + if (marker.collapsed) { doc.iter(from.line, to.line + 1, function (line) { + if (lineIsHidden(doc, line)) { updateLineHeight(line, 0); } + }); } + + if (marker.clearOnEnter) { on(marker, "beforeCursorEnter", function () { return marker.clear(); }); } + + if (marker.readOnly) { + seeReadOnlySpans(); + if (doc.history.done.length || doc.history.undone.length) + { doc.clearHistory(); } + } + if (marker.collapsed) { + marker.id = ++nextMarkerId; + marker.atomic = true; + } + if (cm) { + // Sync editor state + if (updateMaxLine) { cm.curOp.updateMaxLine = true; } + if (marker.collapsed) + { regChange(cm, from.line, to.line + 1); } + else if (marker.className || marker.startStyle || marker.endStyle || marker.css || + marker.attributes || marker.title) + { for (var i = from.line; i <= to.line; i++) { regLineChange(cm, i, "text"); } } + if (marker.atomic) { reCheckSelection(cm.doc); } + signalLater(cm, "markerAdded", cm, marker); + } + return marker + } + + // SHARED TEXTMARKERS + + // A shared marker spans multiple linked documents. It is + // implemented as a meta-marker-object controlling multiple normal + // markers. + var SharedTextMarker = function(markers, primary) { + this.markers = markers; + this.primary = primary; + for (var i = 0; i < markers.length; ++i) + { markers[i].parent = this; } + }; + + SharedTextMarker.prototype.clear = function () { + if (this.explicitlyCleared) { return } + this.explicitlyCleared = true; + for (var i = 0; i < this.markers.length; ++i) + { this.markers[i].clear(); } + signalLater(this, "clear"); + }; + + SharedTextMarker.prototype.find = function (side, lineObj) { + return this.primary.find(side, lineObj) + }; + eventMixin(SharedTextMarker); + + function markTextShared(doc, from, to, options, type) { + options = copyObj(options); + options.shared = false; + var markers = [markText(doc, from, to, options, type)], primary = markers[0]; + var widget = options.widgetNode; + linkedDocs(doc, function (doc) { + if (widget) { options.widgetNode = widget.cloneNode(true); } + markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type)); + for (var i = 0; i < doc.linked.length; ++i) + { if (doc.linked[i].isParent) { return } } + primary = lst(markers); + }); + return new SharedTextMarker(markers, primary) + } + + function findSharedMarkers(doc) { + return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), function (m) { return m.parent; }) + } + + function copySharedMarkers(doc, markers) { + for (var i = 0; i < markers.length; i++) { + var marker = markers[i], pos = marker.find(); + var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to); + if (cmp(mFrom, mTo)) { + var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type); + marker.markers.push(subMark); + subMark.parent = marker; + } + } + } + + function detachSharedMarkers(markers) { + var loop = function ( i ) { + var marker = markers[i], linked = [marker.primary.doc]; + linkedDocs(marker.primary.doc, function (d) { return linked.push(d); }); + for (var j = 0; j < marker.markers.length; j++) { + var subMarker = marker.markers[j]; + if (indexOf(linked, subMarker.doc) == -1) { + subMarker.parent = null; + marker.markers.splice(j--, 1); + } + } + }; + + for (var i = 0; i < markers.length; i++) loop( i ); + } + + var nextDocId = 0; + var Doc = function(text, mode, firstLine, lineSep, direction) { + if (!(this instanceof Doc)) { return new Doc(text, mode, firstLine, lineSep, direction) } + if (firstLine == null) { firstLine = 0; } + + BranchChunk.call(this, [new LeafChunk([new Line("", null)])]); + this.first = firstLine; + this.scrollTop = this.scrollLeft = 0; + this.cantEdit = false; + this.cleanGeneration = 1; + this.modeFrontier = this.highlightFrontier = firstLine; + var start = Pos(firstLine, 0); + this.sel = simpleSelection(start); + this.history = new History(null); + this.id = ++nextDocId; + this.modeOption = mode; + this.lineSep = lineSep; + this.direction = (direction == "rtl") ? "rtl" : "ltr"; + this.extend = false; + + if (typeof text == "string") { text = this.splitLines(text); } + updateDoc(this, {from: start, to: start, text: text}); + setSelection(this, simpleSelection(start), sel_dontScroll); + }; + + Doc.prototype = createObj(BranchChunk.prototype, { + constructor: Doc, + // Iterate over the document. Supports two forms -- with only one + // argument, it calls that for each line in the document. With + // three, it iterates over the range given by the first two (with + // the second being non-inclusive). + iter: function(from, to, op) { + if (op) { this.iterN(from - this.first, to - from, op); } + else { this.iterN(this.first, this.first + this.size, from); } + }, + + // Non-public interface for adding and removing lines. + insert: function(at, lines) { + var height = 0; + for (var i = 0; i < lines.length; ++i) { height += lines[i].height; } + this.insertInner(at - this.first, lines, height); + }, + remove: function(at, n) { this.removeInner(at - this.first, n); }, + + // From here, the methods are part of the public interface. Most + // are also available from CodeMirror (editor) instances. + + getValue: function(lineSep) { + var lines = getLines(this, this.first, this.first + this.size); + if (lineSep === false) { return lines } + return lines.join(lineSep || this.lineSeparator()) + }, + setValue: docMethodOp(function(code) { + var top = Pos(this.first, 0), last = this.first + this.size - 1; + makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length), + text: this.splitLines(code), origin: "setValue", full: true}, true); + if (this.cm) { scrollToCoords(this.cm, 0, 0); } + setSelection(this, simpleSelection(top), sel_dontScroll); + }), + replaceRange: function(code, from, to, origin) { + from = clipPos(this, from); + to = to ? clipPos(this, to) : from; + replaceRange(this, code, from, to, origin); + }, + getRange: function(from, to, lineSep) { + var lines = getBetween(this, clipPos(this, from), clipPos(this, to)); + if (lineSep === false) { return lines } + return lines.join(lineSep || this.lineSeparator()) + }, + + getLine: function(line) {var l = this.getLineHandle(line); return l && l.text}, + + getLineHandle: function(line) {if (isLine(this, line)) { return getLine(this, line) }}, + getLineNumber: function(line) {return lineNo(line)}, + + getLineHandleVisualStart: function(line) { + if (typeof line == "number") { line = getLine(this, line); } + return visualLine(line) + }, + + lineCount: function() {return this.size}, + firstLine: function() {return this.first}, + lastLine: function() {return this.first + this.size - 1}, + + clipPos: function(pos) {return clipPos(this, pos)}, + + getCursor: function(start) { + var range = this.sel.primary(), pos; + if (start == null || start == "head") { pos = range.head; } + else if (start == "anchor") { pos = range.anchor; } + else if (start == "end" || start == "to" || start === false) { pos = range.to(); } + else { pos = range.from(); } + return pos + }, + listSelections: function() { return this.sel.ranges }, + somethingSelected: function() {return this.sel.somethingSelected()}, + + setCursor: docMethodOp(function(line, ch, options) { + setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options); + }), + setSelection: docMethodOp(function(anchor, head, options) { + setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options); + }), + extendSelection: docMethodOp(function(head, other, options) { + extendSelection(this, clipPos(this, head), other && clipPos(this, other), options); + }), + extendSelections: docMethodOp(function(heads, options) { + extendSelections(this, clipPosArray(this, heads), options); + }), + extendSelectionsBy: docMethodOp(function(f, options) { + var heads = map(this.sel.ranges, f); + extendSelections(this, clipPosArray(this, heads), options); + }), + setSelections: docMethodOp(function(ranges, primary, options) { + if (!ranges.length) { return } + var out = []; + for (var i = 0; i < ranges.length; i++) + { out[i] = new Range(clipPos(this, ranges[i].anchor), + clipPos(this, ranges[i].head)); } + if (primary == null) { primary = Math.min(ranges.length - 1, this.sel.primIndex); } + setSelection(this, normalizeSelection(this.cm, out, primary), options); + }), + addSelection: docMethodOp(function(anchor, head, options) { + var ranges = this.sel.ranges.slice(0); + ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor))); + setSelection(this, normalizeSelection(this.cm, ranges, ranges.length - 1), options); + }), + + getSelection: function(lineSep) { + var ranges = this.sel.ranges, lines; + for (var i = 0; i < ranges.length; i++) { + var sel = getBetween(this, ranges[i].from(), ranges[i].to()); + lines = lines ? lines.concat(sel) : sel; + } + if (lineSep === false) { return lines } + else { return lines.join(lineSep || this.lineSeparator()) } + }, + getSelections: function(lineSep) { + var parts = [], ranges = this.sel.ranges; + for (var i = 0; i < ranges.length; i++) { + var sel = getBetween(this, ranges[i].from(), ranges[i].to()); + if (lineSep !== false) { sel = sel.join(lineSep || this.lineSeparator()); } + parts[i] = sel; + } + return parts + }, + replaceSelection: function(code, collapse, origin) { + var dup = []; + for (var i = 0; i < this.sel.ranges.length; i++) + { dup[i] = code; } + this.replaceSelections(dup, collapse, origin || "+input"); + }, + replaceSelections: docMethodOp(function(code, collapse, origin) { + var changes = [], sel = this.sel; + for (var i = 0; i < sel.ranges.length; i++) { + var range = sel.ranges[i]; + changes[i] = {from: range.from(), to: range.to(), text: this.splitLines(code[i]), origin: origin}; + } + var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse); + for (var i$1 = changes.length - 1; i$1 >= 0; i$1--) + { makeChange(this, changes[i$1]); } + if (newSel) { setSelectionReplaceHistory(this, newSel); } + else if (this.cm) { ensureCursorVisible(this.cm); } + }), + undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}), + redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}), + undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}), + redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}), + + setExtending: function(val) {this.extend = val;}, + getExtending: function() {return this.extend}, + + historySize: function() { + var hist = this.history, done = 0, undone = 0; + for (var i = 0; i < hist.done.length; i++) { if (!hist.done[i].ranges) { ++done; } } + for (var i$1 = 0; i$1 < hist.undone.length; i$1++) { if (!hist.undone[i$1].ranges) { ++undone; } } + return {undo: done, redo: undone} + }, + clearHistory: function() { + var this$1 = this; + + this.history = new History(this.history.maxGeneration); + linkedDocs(this, function (doc) { return doc.history = this$1.history; }, true); + }, + + markClean: function() { + this.cleanGeneration = this.changeGeneration(true); + }, + changeGeneration: function(forceSplit) { + if (forceSplit) + { this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null; } + return this.history.generation + }, + isClean: function (gen) { + return this.history.generation == (gen || this.cleanGeneration) + }, + + getHistory: function() { + return {done: copyHistoryArray(this.history.done), + undone: copyHistoryArray(this.history.undone)} + }, + setHistory: function(histData) { + var hist = this.history = new History(this.history.maxGeneration); + hist.done = copyHistoryArray(histData.done.slice(0), null, true); + hist.undone = copyHistoryArray(histData.undone.slice(0), null, true); + }, + + setGutterMarker: docMethodOp(function(line, gutterID, value) { + return changeLine(this, line, "gutter", function (line) { + var markers = line.gutterMarkers || (line.gutterMarkers = {}); + markers[gutterID] = value; + if (!value && isEmpty(markers)) { line.gutterMarkers = null; } + return true + }) + }), + + clearGutter: docMethodOp(function(gutterID) { + var this$1 = this; + + this.iter(function (line) { + if (line.gutterMarkers && line.gutterMarkers[gutterID]) { + changeLine(this$1, line, "gutter", function () { + line.gutterMarkers[gutterID] = null; + if (isEmpty(line.gutterMarkers)) { line.gutterMarkers = null; } + return true + }); + } + }); + }), + + lineInfo: function(line) { + var n; + if (typeof line == "number") { + if (!isLine(this, line)) { return null } + n = line; + line = getLine(this, line); + if (!line) { return null } + } else { + n = lineNo(line); + if (n == null) { return null } + } + return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers, + textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass, + widgets: line.widgets} + }, + + addLineClass: docMethodOp(function(handle, where, cls) { + return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) { + var prop = where == "text" ? "textClass" + : where == "background" ? "bgClass" + : where == "gutter" ? "gutterClass" : "wrapClass"; + if (!line[prop]) { line[prop] = cls; } + else if (classTest(cls).test(line[prop])) { return false } + else { line[prop] += " " + cls; } + return true + }) + }), + removeLineClass: docMethodOp(function(handle, where, cls) { + return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) { + var prop = where == "text" ? "textClass" + : where == "background" ? "bgClass" + : where == "gutter" ? "gutterClass" : "wrapClass"; + var cur = line[prop]; + if (!cur) { return false } + else if (cls == null) { line[prop] = null; } + else { + var found = cur.match(classTest(cls)); + if (!found) { return false } + var end = found.index + found[0].length; + line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null; + } + return true + }) + }), + + addLineWidget: docMethodOp(function(handle, node, options) { + return addLineWidget(this, handle, node, options) + }), + removeLineWidget: function(widget) { widget.clear(); }, + + markText: function(from, to, options) { + return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || "range") + }, + setBookmark: function(pos, options) { + var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options), + insertLeft: options && options.insertLeft, + clearWhenEmpty: false, shared: options && options.shared, + handleMouseEvents: options && options.handleMouseEvents}; + pos = clipPos(this, pos); + return markText(this, pos, pos, realOpts, "bookmark") + }, + findMarksAt: function(pos) { + pos = clipPos(this, pos); + var markers = [], spans = getLine(this, pos.line).markedSpans; + if (spans) { for (var i = 0; i < spans.length; ++i) { + var span = spans[i]; + if ((span.from == null || span.from <= pos.ch) && + (span.to == null || span.to >= pos.ch)) + { markers.push(span.marker.parent || span.marker); } + } } + return markers + }, + findMarks: function(from, to, filter) { + from = clipPos(this, from); to = clipPos(this, to); + var found = [], lineNo = from.line; + this.iter(from.line, to.line + 1, function (line) { + var spans = line.markedSpans; + if (spans) { for (var i = 0; i < spans.length; i++) { + var span = spans[i]; + if (!(span.to != null && lineNo == from.line && from.ch >= span.to || + span.from == null && lineNo != from.line || + span.from != null && lineNo == to.line && span.from >= to.ch) && + (!filter || filter(span.marker))) + { found.push(span.marker.parent || span.marker); } + } } + ++lineNo; + }); + return found + }, + getAllMarks: function() { + var markers = []; + this.iter(function (line) { + var sps = line.markedSpans; + if (sps) { for (var i = 0; i < sps.length; ++i) + { if (sps[i].from != null) { markers.push(sps[i].marker); } } } + }); + return markers + }, + + posFromIndex: function(off) { + var ch, lineNo = this.first, sepSize = this.lineSeparator().length; + this.iter(function (line) { + var sz = line.text.length + sepSize; + if (sz > off) { ch = off; return true } + off -= sz; + ++lineNo; + }); + return clipPos(this, Pos(lineNo, ch)) + }, + indexFromPos: function (coords) { + coords = clipPos(this, coords); + var index = coords.ch; + if (coords.line < this.first || coords.ch < 0) { return 0 } + var sepSize = this.lineSeparator().length; + this.iter(this.first, coords.line, function (line) { // iter aborts when callback returns a truthy value + index += line.text.length + sepSize; + }); + return index + }, + + copy: function(copyHistory) { + var doc = new Doc(getLines(this, this.first, this.first + this.size), + this.modeOption, this.first, this.lineSep, this.direction); + doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft; + doc.sel = this.sel; + doc.extend = false; + if (copyHistory) { + doc.history.undoDepth = this.history.undoDepth; + doc.setHistory(this.getHistory()); + } + return doc + }, + + linkedDoc: function(options) { + if (!options) { options = {}; } + var from = this.first, to = this.first + this.size; + if (options.from != null && options.from > from) { from = options.from; } + if (options.to != null && options.to < to) { to = options.to; } + var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep, this.direction); + if (options.sharedHist) { copy.history = this.history + ; }(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist}); + copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}]; + copySharedMarkers(copy, findSharedMarkers(this)); + return copy + }, + unlinkDoc: function(other) { + if (other instanceof CodeMirror) { other = other.doc; } + if (this.linked) { for (var i = 0; i < this.linked.length; ++i) { + var link = this.linked[i]; + if (link.doc != other) { continue } + this.linked.splice(i, 1); + other.unlinkDoc(this); + detachSharedMarkers(findSharedMarkers(this)); + break + } } + // If the histories were shared, split them again + if (other.history == this.history) { + var splitIds = [other.id]; + linkedDocs(other, function (doc) { return splitIds.push(doc.id); }, true); + other.history = new History(null); + other.history.done = copyHistoryArray(this.history.done, splitIds); + other.history.undone = copyHistoryArray(this.history.undone, splitIds); + } + }, + iterLinkedDocs: function(f) {linkedDocs(this, f);}, + + getMode: function() {return this.mode}, + getEditor: function() {return this.cm}, + + splitLines: function(str) { + if (this.lineSep) { return str.split(this.lineSep) } + return splitLinesAuto(str) + }, + lineSeparator: function() { return this.lineSep || "\n" }, + + setDirection: docMethodOp(function (dir) { + if (dir != "rtl") { dir = "ltr"; } + if (dir == this.direction) { return } + this.direction = dir; + this.iter(function (line) { return line.order = null; }); + if (this.cm) { directionChanged(this.cm); } + }) + }); + + // Public alias. + Doc.prototype.eachLine = Doc.prototype.iter; + + // Kludge to work around strange IE behavior where it'll sometimes + // re-fire a series of drag-related events right after the drop (#1551) + var lastDrop = 0; + + function onDrop(e) { + var cm = this; + clearDragCursor(cm); + if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) + { return } + e_preventDefault(e); + if (ie) { lastDrop = +new Date; } + var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files; + if (!pos || cm.isReadOnly()) { return } + // Might be a file drop, in which case we simply extract the text + // and insert it. + if (files && files.length && window.FileReader && window.File) { + var n = files.length, text = Array(n), read = 0; + var markAsReadAndPasteIfAllFilesAreRead = function () { + if (++read == n) { + operation(cm, function () { + pos = clipPos(cm.doc, pos); + var change = {from: pos, to: pos, + text: cm.doc.splitLines( + text.filter(function (t) { return t != null; }).join(cm.doc.lineSeparator())), + origin: "paste"}; + makeChange(cm.doc, change); + setSelectionReplaceHistory(cm.doc, simpleSelection(clipPos(cm.doc, pos), clipPos(cm.doc, changeEnd(change)))); + })(); + } + }; + var readTextFromFile = function (file, i) { + if (cm.options.allowDropFileTypes && + indexOf(cm.options.allowDropFileTypes, file.type) == -1) { + markAsReadAndPasteIfAllFilesAreRead(); + return + } + var reader = new FileReader; + reader.onerror = function () { return markAsReadAndPasteIfAllFilesAreRead(); }; + reader.onload = function () { + var content = reader.result; + if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) { + markAsReadAndPasteIfAllFilesAreRead(); + return + } + text[i] = content; + markAsReadAndPasteIfAllFilesAreRead(); + }; + reader.readAsText(file); + }; + for (var i = 0; i < files.length; i++) { readTextFromFile(files[i], i); } + } else { // Normal drop + // Don't do a replace if the drop happened inside of the selected text. + if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) { + cm.state.draggingText(e); + // Ensure the editor is re-focused + setTimeout(function () { return cm.display.input.focus(); }, 20); + return + } + try { + var text$1 = e.dataTransfer.getData("Text"); + if (text$1) { + var selected; + if (cm.state.draggingText && !cm.state.draggingText.copy) + { selected = cm.listSelections(); } + setSelectionNoUndo(cm.doc, simpleSelection(pos, pos)); + if (selected) { for (var i$1 = 0; i$1 < selected.length; ++i$1) + { replaceRange(cm.doc, "", selected[i$1].anchor, selected[i$1].head, "drag"); } } + cm.replaceSelection(text$1, "around", "paste"); + cm.display.input.focus(); + } + } + catch(e$1){} + } + } + + function onDragStart(cm, e) { + if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return } + if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) { return } + + e.dataTransfer.setData("Text", cm.getSelection()); + e.dataTransfer.effectAllowed = "copyMove"; + + // Use dummy image instead of default browsers image. + // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there. + if (e.dataTransfer.setDragImage && !safari) { + var img = elt("img", null, null, "position: fixed; left: 0; top: 0;"); + img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw=="; + if (presto) { + img.width = img.height = 1; + cm.display.wrapper.appendChild(img); + // Force a relayout, or Opera won't use our image for some obscure reason + img._top = img.offsetTop; + } + e.dataTransfer.setDragImage(img, 0, 0); + if (presto) { img.parentNode.removeChild(img); } + } + } + + function onDragOver(cm, e) { + var pos = posFromMouse(cm, e); + if (!pos) { return } + var frag = document.createDocumentFragment(); + drawSelectionCursor(cm, pos, frag); + if (!cm.display.dragCursor) { + cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors"); + cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv); + } + removeChildrenAndAdd(cm.display.dragCursor, frag); + } + + function clearDragCursor(cm) { + if (cm.display.dragCursor) { + cm.display.lineSpace.removeChild(cm.display.dragCursor); + cm.display.dragCursor = null; + } + } + + // These must be handled carefully, because naively registering a + // handler for each editor will cause the editors to never be + // garbage collected. + + function forEachCodeMirror(f) { + if (!document.getElementsByClassName) { return } + var byClass = document.getElementsByClassName("CodeMirror"), editors = []; + for (var i = 0; i < byClass.length; i++) { + var cm = byClass[i].CodeMirror; + if (cm) { editors.push(cm); } + } + if (editors.length) { editors[0].operation(function () { + for (var i = 0; i < editors.length; i++) { f(editors[i]); } + }); } + } + + var globalsRegistered = false; + function ensureGlobalHandlers() { + if (globalsRegistered) { return } + registerGlobalHandlers(); + globalsRegistered = true; + } + function registerGlobalHandlers() { + // When the window resizes, we need to refresh active editors. + var resizeTimer; + on(window, "resize", function () { + if (resizeTimer == null) { resizeTimer = setTimeout(function () { + resizeTimer = null; + forEachCodeMirror(onResize); + }, 100); } + }); + // When the window loses focus, we want to show the editor as blurred + on(window, "blur", function () { return forEachCodeMirror(onBlur); }); + } + // Called when the window resizes + function onResize(cm) { + var d = cm.display; + // Might be a text scaling operation, clear size caches. + d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null; + d.scrollbarsClipped = false; + cm.setSize(); + } + + var keyNames = { + 3: "Pause", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt", + 19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End", + 36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert", + 46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod", + 106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 145: "ScrollLock", + 173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\", + 221: "]", 222: "'", 224: "Mod", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete", + 63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert" + }; + + // Number keys + for (var i = 0; i < 10; i++) { keyNames[i + 48] = keyNames[i + 96] = String(i); } + // Alphabetic keys + for (var i$1 = 65; i$1 <= 90; i$1++) { keyNames[i$1] = String.fromCharCode(i$1); } + // Function keys + for (var i$2 = 1; i$2 <= 12; i$2++) { keyNames[i$2 + 111] = keyNames[i$2 + 63235] = "F" + i$2; } + + var keyMap = {}; + + keyMap.basic = { + "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown", + "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown", + "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore", + "Tab": "defaultTab", "Shift-Tab": "indentAuto", + "Enter": "newlineAndIndent", "Insert": "toggleOverwrite", + "Esc": "singleSelection" + }; + // Note that the save and find-related commands aren't defined by + // default. User code or addons can define them. Unknown commands + // are simply ignored. + keyMap.pcDefault = { + "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo", + "Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown", + "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd", + "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find", + "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll", + "Ctrl-[": "indentLess", "Ctrl-]": "indentMore", + "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection", + "fallthrough": "basic" + }; + // Very basic readline/emacs-style bindings, which are standard on Mac. + keyMap.emacsy = { + "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown", + "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd", + "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore", + "Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars", + "Ctrl-O": "openLine" + }; + keyMap.macDefault = { + "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo", + "Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft", + "Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore", + "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find", + "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll", + "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight", + "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd", + "fallthrough": ["basic", "emacsy"] + }; + keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault; + + // KEYMAP DISPATCH + + function normalizeKeyName(name) { + var parts = name.split(/-(?!$)/); + name = parts[parts.length - 1]; + var alt, ctrl, shift, cmd; + for (var i = 0; i < parts.length - 1; i++) { + var mod = parts[i]; + if (/^(cmd|meta|m)$/i.test(mod)) { cmd = true; } + else if (/^a(lt)?$/i.test(mod)) { alt = true; } + else if (/^(c|ctrl|control)$/i.test(mod)) { ctrl = true; } + else if (/^s(hift)?$/i.test(mod)) { shift = true; } + else { throw new Error("Unrecognized modifier name: " + mod) } + } + if (alt) { name = "Alt-" + name; } + if (ctrl) { name = "Ctrl-" + name; } + if (cmd) { name = "Cmd-" + name; } + if (shift) { name = "Shift-" + name; } + return name + } + + // This is a kludge to keep keymaps mostly working as raw objects + // (backwards compatibility) while at the same time support features + // like normalization and multi-stroke key bindings. It compiles a + // new normalized keymap, and then updates the old object to reflect + // this. + function normalizeKeyMap(keymap) { + var copy = {}; + for (var keyname in keymap) { if (keymap.hasOwnProperty(keyname)) { + var value = keymap[keyname]; + if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) { continue } + if (value == "...") { delete keymap[keyname]; continue } + + var keys = map(keyname.split(" "), normalizeKeyName); + for (var i = 0; i < keys.length; i++) { + var val = (void 0), name = (void 0); + if (i == keys.length - 1) { + name = keys.join(" "); + val = value; + } else { + name = keys.slice(0, i + 1).join(" "); + val = "..."; + } + var prev = copy[name]; + if (!prev) { copy[name] = val; } + else if (prev != val) { throw new Error("Inconsistent bindings for " + name) } + } + delete keymap[keyname]; + } } + for (var prop in copy) { keymap[prop] = copy[prop]; } + return keymap + } + + function lookupKey(key, map, handle, context) { + map = getKeyMap(map); + var found = map.call ? map.call(key, context) : map[key]; + if (found === false) { return "nothing" } + if (found === "...") { return "multi" } + if (found != null && handle(found)) { return "handled" } + + if (map.fallthrough) { + if (Object.prototype.toString.call(map.fallthrough) != "[object Array]") + { return lookupKey(key, map.fallthrough, handle, context) } + for (var i = 0; i < map.fallthrough.length; i++) { + var result = lookupKey(key, map.fallthrough[i], handle, context); + if (result) { return result } + } + } + } + + // Modifier key presses don't count as 'real' key presses for the + // purpose of keymap fallthrough. + function isModifierKey(value) { + var name = typeof value == "string" ? value : keyNames[value.keyCode]; + return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod" + } + + function addModifierNames(name, event, noShift) { + var base = name; + if (event.altKey && base != "Alt") { name = "Alt-" + name; } + if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") { name = "Ctrl-" + name; } + if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Mod") { name = "Cmd-" + name; } + if (!noShift && event.shiftKey && base != "Shift") { name = "Shift-" + name; } + return name + } + + // Look up the name of a key as indicated by an event object. + function keyName(event, noShift) { + if (presto && event.keyCode == 34 && event["char"]) { return false } + var name = keyNames[event.keyCode]; + if (name == null || event.altGraphKey) { return false } + // Ctrl-ScrollLock has keyCode 3, same as Ctrl-Pause, + // so we'll use event.code when available (Chrome 48+, FF 38+, Safari 10.1+) + if (event.keyCode == 3 && event.code) { name = event.code; } + return addModifierNames(name, event, noShift) + } + + function getKeyMap(val) { + return typeof val == "string" ? keyMap[val] : val + } + + // Helper for deleting text near the selection(s), used to implement + // backspace, delete, and similar functionality. + function deleteNearSelection(cm, compute) { + var ranges = cm.doc.sel.ranges, kill = []; + // Build up a set of ranges to kill first, merging overlapping + // ranges. + for (var i = 0; i < ranges.length; i++) { + var toKill = compute(ranges[i]); + while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) { + var replaced = kill.pop(); + if (cmp(replaced.from, toKill.from) < 0) { + toKill.from = replaced.from; + break + } + } + kill.push(toKill); + } + // Next, remove those actual ranges. + runInOp(cm, function () { + for (var i = kill.length - 1; i >= 0; i--) + { replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete"); } + ensureCursorVisible(cm); + }); + } + + function moveCharLogically(line, ch, dir) { + var target = skipExtendingChars(line.text, ch + dir, dir); + return target < 0 || target > line.text.length ? null : target + } + + function moveLogically(line, start, dir) { + var ch = moveCharLogically(line, start.ch, dir); + return ch == null ? null : new Pos(start.line, ch, dir < 0 ? "after" : "before") + } + + function endOfLine(visually, cm, lineObj, lineNo, dir) { + if (visually) { + if (cm.doc.direction == "rtl") { dir = -dir; } + var order = getOrder(lineObj, cm.doc.direction); + if (order) { + var part = dir < 0 ? lst(order) : order[0]; + var moveInStorageOrder = (dir < 0) == (part.level == 1); + var sticky = moveInStorageOrder ? "after" : "before"; + var ch; + // With a wrapped rtl chunk (possibly spanning multiple bidi parts), + // it could be that the last bidi part is not on the last visual line, + // since visual lines contain content order-consecutive chunks. + // Thus, in rtl, we are looking for the first (content-order) character + // in the rtl chunk that is on the last line (that is, the same line + // as the last (content-order) character). + if (part.level > 0 || cm.doc.direction == "rtl") { + var prep = prepareMeasureForLine(cm, lineObj); + ch = dir < 0 ? lineObj.text.length - 1 : 0; + var targetTop = measureCharPrepared(cm, prep, ch).top; + ch = findFirst(function (ch) { return measureCharPrepared(cm, prep, ch).top == targetTop; }, (dir < 0) == (part.level == 1) ? part.from : part.to - 1, ch); + if (sticky == "before") { ch = moveCharLogically(lineObj, ch, 1); } + } else { ch = dir < 0 ? part.to : part.from; } + return new Pos(lineNo, ch, sticky) + } + } + return new Pos(lineNo, dir < 0 ? lineObj.text.length : 0, dir < 0 ? "before" : "after") + } + + function moveVisually(cm, line, start, dir) { + var bidi = getOrder(line, cm.doc.direction); + if (!bidi) { return moveLogically(line, start, dir) } + if (start.ch >= line.text.length) { + start.ch = line.text.length; + start.sticky = "before"; + } else if (start.ch <= 0) { + start.ch = 0; + start.sticky = "after"; + } + var partPos = getBidiPartAt(bidi, start.ch, start.sticky), part = bidi[partPos]; + if (cm.doc.direction == "ltr" && part.level % 2 == 0 && (dir > 0 ? part.to > start.ch : part.from < start.ch)) { + // Case 1: We move within an ltr part in an ltr editor. Even with wrapped lines, + // nothing interesting happens. + return moveLogically(line, start, dir) + } + + var mv = function (pos, dir) { return moveCharLogically(line, pos instanceof Pos ? pos.ch : pos, dir); }; + var prep; + var getWrappedLineExtent = function (ch) { + if (!cm.options.lineWrapping) { return {begin: 0, end: line.text.length} } + prep = prep || prepareMeasureForLine(cm, line); + return wrappedLineExtentChar(cm, line, prep, ch) + }; + var wrappedLineExtent = getWrappedLineExtent(start.sticky == "before" ? mv(start, -1) : start.ch); + + if (cm.doc.direction == "rtl" || part.level == 1) { + var moveInStorageOrder = (part.level == 1) == (dir < 0); + var ch = mv(start, moveInStorageOrder ? 1 : -1); + if (ch != null && (!moveInStorageOrder ? ch >= part.from && ch >= wrappedLineExtent.begin : ch <= part.to && ch <= wrappedLineExtent.end)) { + // Case 2: We move within an rtl part or in an rtl editor on the same visual line + var sticky = moveInStorageOrder ? "before" : "after"; + return new Pos(start.line, ch, sticky) + } + } + + // Case 3: Could not move within this bidi part in this visual line, so leave + // the current bidi part + + var searchInVisualLine = function (partPos, dir, wrappedLineExtent) { + var getRes = function (ch, moveInStorageOrder) { return moveInStorageOrder + ? new Pos(start.line, mv(ch, 1), "before") + : new Pos(start.line, ch, "after"); }; + + for (; partPos >= 0 && partPos < bidi.length; partPos += dir) { + var part = bidi[partPos]; + var moveInStorageOrder = (dir > 0) == (part.level != 1); + var ch = moveInStorageOrder ? wrappedLineExtent.begin : mv(wrappedLineExtent.end, -1); + if (part.from <= ch && ch < part.to) { return getRes(ch, moveInStorageOrder) } + ch = moveInStorageOrder ? part.from : mv(part.to, -1); + if (wrappedLineExtent.begin <= ch && ch < wrappedLineExtent.end) { return getRes(ch, moveInStorageOrder) } + } + }; + + // Case 3a: Look for other bidi parts on the same visual line + var res = searchInVisualLine(partPos + dir, dir, wrappedLineExtent); + if (res) { return res } + + // Case 3b: Look for other bidi parts on the next visual line + var nextCh = dir > 0 ? wrappedLineExtent.end : mv(wrappedLineExtent.begin, -1); + if (nextCh != null && !(dir > 0 && nextCh == line.text.length)) { + res = searchInVisualLine(dir > 0 ? 0 : bidi.length - 1, dir, getWrappedLineExtent(nextCh)); + if (res) { return res } + } + + // Case 4: Nowhere to move + return null + } + + // Commands are parameter-less actions that can be performed on an + // editor, mostly used for keybindings. + var commands = { + selectAll: selectAll, + singleSelection: function (cm) { return cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll); }, + killLine: function (cm) { return deleteNearSelection(cm, function (range) { + if (range.empty()) { + var len = getLine(cm.doc, range.head.line).text.length; + if (range.head.ch == len && range.head.line < cm.lastLine()) + { return {from: range.head, to: Pos(range.head.line + 1, 0)} } + else + { return {from: range.head, to: Pos(range.head.line, len)} } + } else { + return {from: range.from(), to: range.to()} + } + }); }, + deleteLine: function (cm) { return deleteNearSelection(cm, function (range) { return ({ + from: Pos(range.from().line, 0), + to: clipPos(cm.doc, Pos(range.to().line + 1, 0)) + }); }); }, + delLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { return ({ + from: Pos(range.from().line, 0), to: range.from() + }); }); }, + delWrappedLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { + var top = cm.charCoords(range.head, "div").top + 5; + var leftPos = cm.coordsChar({left: 0, top: top}, "div"); + return {from: leftPos, to: range.from()} + }); }, + delWrappedLineRight: function (cm) { return deleteNearSelection(cm, function (range) { + var top = cm.charCoords(range.head, "div").top + 5; + var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div"); + return {from: range.from(), to: rightPos } + }); }, + undo: function (cm) { return cm.undo(); }, + redo: function (cm) { return cm.redo(); }, + undoSelection: function (cm) { return cm.undoSelection(); }, + redoSelection: function (cm) { return cm.redoSelection(); }, + goDocStart: function (cm) { return cm.extendSelection(Pos(cm.firstLine(), 0)); }, + goDocEnd: function (cm) { return cm.extendSelection(Pos(cm.lastLine())); }, + goLineStart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStart(cm, range.head.line); }, + {origin: "+move", bias: 1} + ); }, + goLineStartSmart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStartSmart(cm, range.head); }, + {origin: "+move", bias: 1} + ); }, + goLineEnd: function (cm) { return cm.extendSelectionsBy(function (range) { return lineEnd(cm, range.head.line); }, + {origin: "+move", bias: -1} + ); }, + goLineRight: function (cm) { return cm.extendSelectionsBy(function (range) { + var top = cm.cursorCoords(range.head, "div").top + 5; + return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div") + }, sel_move); }, + goLineLeft: function (cm) { return cm.extendSelectionsBy(function (range) { + var top = cm.cursorCoords(range.head, "div").top + 5; + return cm.coordsChar({left: 0, top: top}, "div") + }, sel_move); }, + goLineLeftSmart: function (cm) { return cm.extendSelectionsBy(function (range) { + var top = cm.cursorCoords(range.head, "div").top + 5; + var pos = cm.coordsChar({left: 0, top: top}, "div"); + if (pos.ch < cm.getLine(pos.line).search(/\S/)) { return lineStartSmart(cm, range.head) } + return pos + }, sel_move); }, + goLineUp: function (cm) { return cm.moveV(-1, "line"); }, + goLineDown: function (cm) { return cm.moveV(1, "line"); }, + goPageUp: function (cm) { return cm.moveV(-1, "page"); }, + goPageDown: function (cm) { return cm.moveV(1, "page"); }, + goCharLeft: function (cm) { return cm.moveH(-1, "char"); }, + goCharRight: function (cm) { return cm.moveH(1, "char"); }, + goColumnLeft: function (cm) { return cm.moveH(-1, "column"); }, + goColumnRight: function (cm) { return cm.moveH(1, "column"); }, + goWordLeft: function (cm) { return cm.moveH(-1, "word"); }, + goGroupRight: function (cm) { return cm.moveH(1, "group"); }, + goGroupLeft: function (cm) { return cm.moveH(-1, "group"); }, + goWordRight: function (cm) { return cm.moveH(1, "word"); }, + delCharBefore: function (cm) { return cm.deleteH(-1, "codepoint"); }, + delCharAfter: function (cm) { return cm.deleteH(1, "char"); }, + delWordBefore: function (cm) { return cm.deleteH(-1, "word"); }, + delWordAfter: function (cm) { return cm.deleteH(1, "word"); }, + delGroupBefore: function (cm) { return cm.deleteH(-1, "group"); }, + delGroupAfter: function (cm) { return cm.deleteH(1, "group"); }, + indentAuto: function (cm) { return cm.indentSelection("smart"); }, + indentMore: function (cm) { return cm.indentSelection("add"); }, + indentLess: function (cm) { return cm.indentSelection("subtract"); }, + insertTab: function (cm) { return cm.replaceSelection("\t"); }, + insertSoftTab: function (cm) { + var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize; + for (var i = 0; i < ranges.length; i++) { + var pos = ranges[i].from(); + var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize); + spaces.push(spaceStr(tabSize - col % tabSize)); + } + cm.replaceSelections(spaces); + }, + defaultTab: function (cm) { + if (cm.somethingSelected()) { cm.indentSelection("add"); } + else { cm.execCommand("insertTab"); } + }, + // Swap the two chars left and right of each selection's head. + // Move cursor behind the two swapped characters afterwards. + // + // Doesn't consider line feeds a character. + // Doesn't scan more than one line above to find a character. + // Doesn't do anything on an empty line. + // Doesn't do anything with non-empty selections. + transposeChars: function (cm) { return runInOp(cm, function () { + var ranges = cm.listSelections(), newSel = []; + for (var i = 0; i < ranges.length; i++) { + if (!ranges[i].empty()) { continue } + var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text; + if (line) { + if (cur.ch == line.length) { cur = new Pos(cur.line, cur.ch - 1); } + if (cur.ch > 0) { + cur = new Pos(cur.line, cur.ch + 1); + cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2), + Pos(cur.line, cur.ch - 2), cur, "+transpose"); + } else if (cur.line > cm.doc.first) { + var prev = getLine(cm.doc, cur.line - 1).text; + if (prev) { + cur = new Pos(cur.line, 1); + cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() + + prev.charAt(prev.length - 1), + Pos(cur.line - 1, prev.length - 1), cur, "+transpose"); + } + } + } + newSel.push(new Range(cur, cur)); + } + cm.setSelections(newSel); + }); }, + newlineAndIndent: function (cm) { return runInOp(cm, function () { + var sels = cm.listSelections(); + for (var i = sels.length - 1; i >= 0; i--) + { cm.replaceRange(cm.doc.lineSeparator(), sels[i].anchor, sels[i].head, "+input"); } + sels = cm.listSelections(); + for (var i$1 = 0; i$1 < sels.length; i$1++) + { cm.indentLine(sels[i$1].from().line, null, true); } + ensureCursorVisible(cm); + }); }, + openLine: function (cm) { return cm.replaceSelection("\n", "start"); }, + toggleOverwrite: function (cm) { return cm.toggleOverwrite(); } + }; + + + function lineStart(cm, lineN) { + var line = getLine(cm.doc, lineN); + var visual = visualLine(line); + if (visual != line) { lineN = lineNo(visual); } + return endOfLine(true, cm, visual, lineN, 1) + } + function lineEnd(cm, lineN) { + var line = getLine(cm.doc, lineN); + var visual = visualLineEnd(line); + if (visual != line) { lineN = lineNo(visual); } + return endOfLine(true, cm, line, lineN, -1) + } + function lineStartSmart(cm, pos) { + var start = lineStart(cm, pos.line); + var line = getLine(cm.doc, start.line); + var order = getOrder(line, cm.doc.direction); + if (!order || order[0].level == 0) { + var firstNonWS = Math.max(start.ch, line.text.search(/\S/)); + var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch; + return Pos(start.line, inWS ? 0 : firstNonWS, start.sticky) + } + return start + } + + // Run a handler that was bound to a key. + function doHandleBinding(cm, bound, dropShift) { + if (typeof bound == "string") { + bound = commands[bound]; + if (!bound) { return false } + } + // Ensure previous input has been read, so that the handler sees a + // consistent view of the document + cm.display.input.ensurePolled(); + var prevShift = cm.display.shift, done = false; + try { + if (cm.isReadOnly()) { cm.state.suppressEdits = true; } + if (dropShift) { cm.display.shift = false; } + done = bound(cm) != Pass; + } finally { + cm.display.shift = prevShift; + cm.state.suppressEdits = false; + } + return done + } + + function lookupKeyForEditor(cm, name, handle) { + for (var i = 0; i < cm.state.keyMaps.length; i++) { + var result = lookupKey(name, cm.state.keyMaps[i], handle, cm); + if (result) { return result } + } + return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm)) + || lookupKey(name, cm.options.keyMap, handle, cm) + } + + // Note that, despite the name, this function is also used to check + // for bound mouse clicks. + + var stopSeq = new Delayed; + + function dispatchKey(cm, name, e, handle) { + var seq = cm.state.keySeq; + if (seq) { + if (isModifierKey(name)) { return "handled" } + if (/\'$/.test(name)) + { cm.state.keySeq = null; } + else + { stopSeq.set(50, function () { + if (cm.state.keySeq == seq) { + cm.state.keySeq = null; + cm.display.input.reset(); + } + }); } + if (dispatchKeyInner(cm, seq + " " + name, e, handle)) { return true } + } + return dispatchKeyInner(cm, name, e, handle) + } + + function dispatchKeyInner(cm, name, e, handle) { + var result = lookupKeyForEditor(cm, name, handle); + + if (result == "multi") + { cm.state.keySeq = name; } + if (result == "handled") + { signalLater(cm, "keyHandled", cm, name, e); } + + if (result == "handled" || result == "multi") { + e_preventDefault(e); + restartBlink(cm); + } + + return !!result + } + + // Handle a key from the keydown event. + function handleKeyBinding(cm, e) { + var name = keyName(e, true); + if (!name) { return false } + + if (e.shiftKey && !cm.state.keySeq) { + // First try to resolve full name (including 'Shift-'). Failing + // that, see if there is a cursor-motion command (starting with + // 'go') bound to the keyname without 'Shift-'. + return dispatchKey(cm, "Shift-" + name, e, function (b) { return doHandleBinding(cm, b, true); }) + || dispatchKey(cm, name, e, function (b) { + if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion) + { return doHandleBinding(cm, b) } + }) + } else { + return dispatchKey(cm, name, e, function (b) { return doHandleBinding(cm, b); }) + } + } + + // Handle a key from the keypress event + function handleCharBinding(cm, e, ch) { + return dispatchKey(cm, "'" + ch + "'", e, function (b) { return doHandleBinding(cm, b, true); }) + } + + var lastStoppedKey = null; + function onKeyDown(e) { + var cm = this; + if (e.target && e.target != cm.display.input.getField()) { return } + cm.curOp.focus = activeElt(); + if (signalDOMEvent(cm, e)) { return } + // IE does strange things with escape. + if (ie && ie_version < 11 && e.keyCode == 27) { e.returnValue = false; } + var code = e.keyCode; + cm.display.shift = code == 16 || e.shiftKey; + var handled = handleKeyBinding(cm, e); + if (presto) { + lastStoppedKey = handled ? code : null; + // Opera has no cut event... we try to at least catch the key combo + if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey)) + { cm.replaceSelection("", null, "cut"); } + } + if (gecko && !mac && !handled && code == 46 && e.shiftKey && !e.ctrlKey && document.execCommand) + { document.execCommand("cut"); } + + // Turn mouse into crosshair when Alt is held on Mac. + if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className)) + { showCrossHair(cm); } + } + + function showCrossHair(cm) { + var lineDiv = cm.display.lineDiv; + addClass(lineDiv, "CodeMirror-crosshair"); + + function up(e) { + if (e.keyCode == 18 || !e.altKey) { + rmClass(lineDiv, "CodeMirror-crosshair"); + off(document, "keyup", up); + off(document, "mouseover", up); + } + } + on(document, "keyup", up); + on(document, "mouseover", up); + } + + function onKeyUp(e) { + if (e.keyCode == 16) { this.doc.sel.shift = false; } + signalDOMEvent(this, e); + } + + function onKeyPress(e) { + var cm = this; + if (e.target && e.target != cm.display.input.getField()) { return } + if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) { return } + var keyCode = e.keyCode, charCode = e.charCode; + if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return} + if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) { return } + var ch = String.fromCharCode(charCode == null ? keyCode : charCode); + // Some browsers fire keypress events for backspace + if (ch == "\x08") { return } + if (handleCharBinding(cm, e, ch)) { return } + cm.display.input.onKeyPress(e); + } + + var DOUBLECLICK_DELAY = 400; + + var PastClick = function(time, pos, button) { + this.time = time; + this.pos = pos; + this.button = button; + }; + + PastClick.prototype.compare = function (time, pos, button) { + return this.time + DOUBLECLICK_DELAY > time && + cmp(pos, this.pos) == 0 && button == this.button + }; + + var lastClick, lastDoubleClick; + function clickRepeat(pos, button) { + var now = +new Date; + if (lastDoubleClick && lastDoubleClick.compare(now, pos, button)) { + lastClick = lastDoubleClick = null; + return "triple" + } else if (lastClick && lastClick.compare(now, pos, button)) { + lastDoubleClick = new PastClick(now, pos, button); + lastClick = null; + return "double" + } else { + lastClick = new PastClick(now, pos, button); + lastDoubleClick = null; + return "single" + } + } + + // A mouse down can be a single click, double click, triple click, + // start of selection drag, start of text drag, new cursor + // (ctrl-click), rectangle drag (alt-drag), or xwin + // middle-click-paste. Or it might be a click on something we should + // not interfere with, such as a scrollbar or widget. + function onMouseDown(e) { + var cm = this, display = cm.display; + if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) { return } + display.input.ensurePolled(); + display.shift = e.shiftKey; + + if (eventInWidget(display, e)) { + if (!webkit) { + // Briefly turn off draggability, to allow widgets to do + // normal dragging things. + display.scroller.draggable = false; + setTimeout(function () { return display.scroller.draggable = true; }, 100); + } + return + } + if (clickInGutter(cm, e)) { return } + var pos = posFromMouse(cm, e), button = e_button(e), repeat = pos ? clickRepeat(pos, button) : "single"; + window.focus(); + + // #3261: make sure, that we're not starting a second selection + if (button == 1 && cm.state.selectingText) + { cm.state.selectingText(e); } + + if (pos && handleMappedButton(cm, button, pos, repeat, e)) { return } + + if (button == 1) { + if (pos) { leftButtonDown(cm, pos, repeat, e); } + else if (e_target(e) == display.scroller) { e_preventDefault(e); } + } else if (button == 2) { + if (pos) { extendSelection(cm.doc, pos); } + setTimeout(function () { return display.input.focus(); }, 20); + } else if (button == 3) { + if (captureRightClick) { cm.display.input.onContextMenu(e); } + else { delayBlurEvent(cm); } + } + } + + function handleMappedButton(cm, button, pos, repeat, event) { + var name = "Click"; + if (repeat == "double") { name = "Double" + name; } + else if (repeat == "triple") { name = "Triple" + name; } + name = (button == 1 ? "Left" : button == 2 ? "Middle" : "Right") + name; + + return dispatchKey(cm, addModifierNames(name, event), event, function (bound) { + if (typeof bound == "string") { bound = commands[bound]; } + if (!bound) { return false } + var done = false; + try { + if (cm.isReadOnly()) { cm.state.suppressEdits = true; } + done = bound(cm, pos) != Pass; + } finally { + cm.state.suppressEdits = false; + } + return done + }) + } + + function configureMouse(cm, repeat, event) { + var option = cm.getOption("configureMouse"); + var value = option ? option(cm, repeat, event) : {}; + if (value.unit == null) { + var rect = chromeOS ? event.shiftKey && event.metaKey : event.altKey; + value.unit = rect ? "rectangle" : repeat == "single" ? "char" : repeat == "double" ? "word" : "line"; + } + if (value.extend == null || cm.doc.extend) { value.extend = cm.doc.extend || event.shiftKey; } + if (value.addNew == null) { value.addNew = mac ? event.metaKey : event.ctrlKey; } + if (value.moveOnDrag == null) { value.moveOnDrag = !(mac ? event.altKey : event.ctrlKey); } + return value + } + + function leftButtonDown(cm, pos, repeat, event) { + if (ie) { setTimeout(bind(ensureFocus, cm), 0); } + else { cm.curOp.focus = activeElt(); } + + var behavior = configureMouse(cm, repeat, event); + + var sel = cm.doc.sel, contained; + if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() && + repeat == "single" && (contained = sel.contains(pos)) > -1 && + (cmp((contained = sel.ranges[contained]).from(), pos) < 0 || pos.xRel > 0) && + (cmp(contained.to(), pos) > 0 || pos.xRel < 0)) + { leftButtonStartDrag(cm, event, pos, behavior); } + else + { leftButtonSelect(cm, event, pos, behavior); } + } + + // Start a text drag. When it ends, see if any dragging actually + // happen, and treat as a click if it didn't. + function leftButtonStartDrag(cm, event, pos, behavior) { + var display = cm.display, moved = false; + var dragEnd = operation(cm, function (e) { + if (webkit) { display.scroller.draggable = false; } + cm.state.draggingText = false; + if (cm.state.delayingBlurEvent) { + if (cm.hasFocus()) { cm.state.delayingBlurEvent = false; } + else { delayBlurEvent(cm); } + } + off(display.wrapper.ownerDocument, "mouseup", dragEnd); + off(display.wrapper.ownerDocument, "mousemove", mouseMove); + off(display.scroller, "dragstart", dragStart); + off(display.scroller, "drop", dragEnd); + if (!moved) { + e_preventDefault(e); + if (!behavior.addNew) + { extendSelection(cm.doc, pos, null, null, behavior.extend); } + // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081) + if ((webkit && !safari) || ie && ie_version == 9) + { setTimeout(function () {display.wrapper.ownerDocument.body.focus({preventScroll: true}); display.input.focus();}, 20); } + else + { display.input.focus(); } + } + }); + var mouseMove = function(e2) { + moved = moved || Math.abs(event.clientX - e2.clientX) + Math.abs(event.clientY - e2.clientY) >= 10; + }; + var dragStart = function () { return moved = true; }; + // Let the drag handler handle this. + if (webkit) { display.scroller.draggable = true; } + cm.state.draggingText = dragEnd; + dragEnd.copy = !behavior.moveOnDrag; + on(display.wrapper.ownerDocument, "mouseup", dragEnd); + on(display.wrapper.ownerDocument, "mousemove", mouseMove); + on(display.scroller, "dragstart", dragStart); + on(display.scroller, "drop", dragEnd); + + cm.state.delayingBlurEvent = true; + setTimeout(function () { return display.input.focus(); }, 20); + // IE's approach to draggable + if (display.scroller.dragDrop) { display.scroller.dragDrop(); } + } + + function rangeForUnit(cm, pos, unit) { + if (unit == "char") { return new Range(pos, pos) } + if (unit == "word") { return cm.findWordAt(pos) } + if (unit == "line") { return new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))) } + var result = unit(cm, pos); + return new Range(result.from, result.to) + } + + // Normal selection, as opposed to text dragging. + function leftButtonSelect(cm, event, start, behavior) { + if (ie) { delayBlurEvent(cm); } + var display = cm.display, doc = cm.doc; + e_preventDefault(event); + + var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges; + if (behavior.addNew && !behavior.extend) { + ourIndex = doc.sel.contains(start); + if (ourIndex > -1) + { ourRange = ranges[ourIndex]; } + else + { ourRange = new Range(start, start); } + } else { + ourRange = doc.sel.primary(); + ourIndex = doc.sel.primIndex; + } + + if (behavior.unit == "rectangle") { + if (!behavior.addNew) { ourRange = new Range(start, start); } + start = posFromMouse(cm, event, true, true); + ourIndex = -1; + } else { + var range = rangeForUnit(cm, start, behavior.unit); + if (behavior.extend) + { ourRange = extendRange(ourRange, range.anchor, range.head, behavior.extend); } + else + { ourRange = range; } + } + + if (!behavior.addNew) { + ourIndex = 0; + setSelection(doc, new Selection([ourRange], 0), sel_mouse); + startSel = doc.sel; + } else if (ourIndex == -1) { + ourIndex = ranges.length; + setSelection(doc, normalizeSelection(cm, ranges.concat([ourRange]), ourIndex), + {scroll: false, origin: "*mouse"}); + } else if (ranges.length > 1 && ranges[ourIndex].empty() && behavior.unit == "char" && !behavior.extend) { + setSelection(doc, normalizeSelection(cm, ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0), + {scroll: false, origin: "*mouse"}); + startSel = doc.sel; + } else { + replaceOneSelection(doc, ourIndex, ourRange, sel_mouse); + } + + var lastPos = start; + function extendTo(pos) { + if (cmp(lastPos, pos) == 0) { return } + lastPos = pos; + + if (behavior.unit == "rectangle") { + var ranges = [], tabSize = cm.options.tabSize; + var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize); + var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize); + var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol); + for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line)); + line <= end; line++) { + var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize); + if (left == right) + { ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))); } + else if (text.length > leftPos) + { ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))); } + } + if (!ranges.length) { ranges.push(new Range(start, start)); } + setSelection(doc, normalizeSelection(cm, startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex), + {origin: "*mouse", scroll: false}); + cm.scrollIntoView(pos); + } else { + var oldRange = ourRange; + var range = rangeForUnit(cm, pos, behavior.unit); + var anchor = oldRange.anchor, head; + if (cmp(range.anchor, anchor) > 0) { + head = range.head; + anchor = minPos(oldRange.from(), range.anchor); + } else { + head = range.anchor; + anchor = maxPos(oldRange.to(), range.head); + } + var ranges$1 = startSel.ranges.slice(0); + ranges$1[ourIndex] = bidiSimplify(cm, new Range(clipPos(doc, anchor), head)); + setSelection(doc, normalizeSelection(cm, ranges$1, ourIndex), sel_mouse); + } + } + + var editorSize = display.wrapper.getBoundingClientRect(); + // Used to ensure timeout re-tries don't fire when another extend + // happened in the meantime (clearTimeout isn't reliable -- at + // least on Chrome, the timeouts still happen even when cleared, + // if the clear happens after their scheduled firing time). + var counter = 0; + + function extend(e) { + var curCount = ++counter; + var cur = posFromMouse(cm, e, true, behavior.unit == "rectangle"); + if (!cur) { return } + if (cmp(cur, lastPos) != 0) { + cm.curOp.focus = activeElt(); + extendTo(cur); + var visible = visibleLines(display, doc); + if (cur.line >= visible.to || cur.line < visible.from) + { setTimeout(operation(cm, function () {if (counter == curCount) { extend(e); }}), 150); } + } else { + var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0; + if (outside) { setTimeout(operation(cm, function () { + if (counter != curCount) { return } + display.scroller.scrollTop += outside; + extend(e); + }), 50); } + } + } + + function done(e) { + cm.state.selectingText = false; + counter = Infinity; + // If e is null or undefined we interpret this as someone trying + // to explicitly cancel the selection rather than the user + // letting go of the mouse button. + if (e) { + e_preventDefault(e); + display.input.focus(); + } + off(display.wrapper.ownerDocument, "mousemove", move); + off(display.wrapper.ownerDocument, "mouseup", up); + doc.history.lastSelOrigin = null; + } + + var move = operation(cm, function (e) { + if (e.buttons === 0 || !e_button(e)) { done(e); } + else { extend(e); } + }); + var up = operation(cm, done); + cm.state.selectingText = up; + on(display.wrapper.ownerDocument, "mousemove", move); + on(display.wrapper.ownerDocument, "mouseup", up); + } + + // Used when mouse-selecting to adjust the anchor to the proper side + // of a bidi jump depending on the visual position of the head. + function bidiSimplify(cm, range) { + var anchor = range.anchor; + var head = range.head; + var anchorLine = getLine(cm.doc, anchor.line); + if (cmp(anchor, head) == 0 && anchor.sticky == head.sticky) { return range } + var order = getOrder(anchorLine); + if (!order) { return range } + var index = getBidiPartAt(order, anchor.ch, anchor.sticky), part = order[index]; + if (part.from != anchor.ch && part.to != anchor.ch) { return range } + var boundary = index + ((part.from == anchor.ch) == (part.level != 1) ? 0 : 1); + if (boundary == 0 || boundary == order.length) { return range } + + // Compute the relative visual position of the head compared to the + // anchor (<0 is to the left, >0 to the right) + var leftSide; + if (head.line != anchor.line) { + leftSide = (head.line - anchor.line) * (cm.doc.direction == "ltr" ? 1 : -1) > 0; + } else { + var headIndex = getBidiPartAt(order, head.ch, head.sticky); + var dir = headIndex - index || (head.ch - anchor.ch) * (part.level == 1 ? -1 : 1); + if (headIndex == boundary - 1 || headIndex == boundary) + { leftSide = dir < 0; } + else + { leftSide = dir > 0; } + } + + var usePart = order[boundary + (leftSide ? -1 : 0)]; + var from = leftSide == (usePart.level == 1); + var ch = from ? usePart.from : usePart.to, sticky = from ? "after" : "before"; + return anchor.ch == ch && anchor.sticky == sticky ? range : new Range(new Pos(anchor.line, ch, sticky), head) + } + + + // Determines whether an event happened in the gutter, and fires the + // handlers for the corresponding event. + function gutterEvent(cm, e, type, prevent) { + var mX, mY; + if (e.touches) { + mX = e.touches[0].clientX; + mY = e.touches[0].clientY; + } else { + try { mX = e.clientX; mY = e.clientY; } + catch(e$1) { return false } + } + if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) { return false } + if (prevent) { e_preventDefault(e); } + + var display = cm.display; + var lineBox = display.lineDiv.getBoundingClientRect(); + + if (mY > lineBox.bottom || !hasHandler(cm, type)) { return e_defaultPrevented(e) } + mY -= lineBox.top - display.viewOffset; + + for (var i = 0; i < cm.display.gutterSpecs.length; ++i) { + var g = display.gutters.childNodes[i]; + if (g && g.getBoundingClientRect().right >= mX) { + var line = lineAtHeight(cm.doc, mY); + var gutter = cm.display.gutterSpecs[i]; + signal(cm, type, cm, line, gutter.className, e); + return e_defaultPrevented(e) + } + } + } + + function clickInGutter(cm, e) { + return gutterEvent(cm, e, "gutterClick", true) + } + + // CONTEXT MENU HANDLING + + // To make the context menu work, we need to briefly unhide the + // textarea (making it as unobtrusive as possible) to let the + // right-click take effect on it. + function onContextMenu(cm, e) { + if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) { return } + if (signalDOMEvent(cm, e, "contextmenu")) { return } + if (!captureRightClick) { cm.display.input.onContextMenu(e); } + } + + function contextMenuInGutter(cm, e) { + if (!hasHandler(cm, "gutterContextMenu")) { return false } + return gutterEvent(cm, e, "gutterContextMenu", false) + } + + function themeChanged(cm) { + cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") + + cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-"); + clearCaches(cm); + } + + var Init = {toString: function(){return "CodeMirror.Init"}}; + + var defaults = {}; + var optionHandlers = {}; + + function defineOptions(CodeMirror) { + var optionHandlers = CodeMirror.optionHandlers; + + function option(name, deflt, handle, notOnInit) { + CodeMirror.defaults[name] = deflt; + if (handle) { optionHandlers[name] = + notOnInit ? function (cm, val, old) {if (old != Init) { handle(cm, val, old); }} : handle; } + } + + CodeMirror.defineOption = option; + + // Passed to option handlers when there is no old value. + CodeMirror.Init = Init; + + // These two are, on init, called from the constructor because they + // have to be initialized before the editor can start at all. + option("value", "", function (cm, val) { return cm.setValue(val); }, true); + option("mode", null, function (cm, val) { + cm.doc.modeOption = val; + loadMode(cm); + }, true); + + option("indentUnit", 2, loadMode, true); + option("indentWithTabs", false); + option("smartIndent", true); + option("tabSize", 4, function (cm) { + resetModeState(cm); + clearCaches(cm); + regChange(cm); + }, true); + + option("lineSeparator", null, function (cm, val) { + cm.doc.lineSep = val; + if (!val) { return } + var newBreaks = [], lineNo = cm.doc.first; + cm.doc.iter(function (line) { + for (var pos = 0;;) { + var found = line.text.indexOf(val, pos); + if (found == -1) { break } + pos = found + val.length; + newBreaks.push(Pos(lineNo, found)); + } + lineNo++; + }); + for (var i = newBreaks.length - 1; i >= 0; i--) + { replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length)); } + }); + option("specialChars", /[\u0000-\u001f\u007f-\u009f\u00ad\u061c\u200b-\u200c\u200e\u200f\u2028\u2029\ufeff\ufff9-\ufffc]/g, function (cm, val, old) { + cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g"); + if (old != Init) { cm.refresh(); } + }); + option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function (cm) { return cm.refresh(); }, true); + option("electricChars", true); + option("inputStyle", mobile ? "contenteditable" : "textarea", function () { + throw new Error("inputStyle can not (yet) be changed in a running editor") // FIXME + }, true); + option("spellcheck", false, function (cm, val) { return cm.getInputField().spellcheck = val; }, true); + option("autocorrect", false, function (cm, val) { return cm.getInputField().autocorrect = val; }, true); + option("autocapitalize", false, function (cm, val) { return cm.getInputField().autocapitalize = val; }, true); + option("rtlMoveVisually", !windows); + option("wholeLineUpdateBefore", true); + + option("theme", "default", function (cm) { + themeChanged(cm); + updateGutters(cm); + }, true); + option("keyMap", "default", function (cm, val, old) { + var next = getKeyMap(val); + var prev = old != Init && getKeyMap(old); + if (prev && prev.detach) { prev.detach(cm, next); } + if (next.attach) { next.attach(cm, prev || null); } + }); + option("extraKeys", null); + option("configureMouse", null); + + option("lineWrapping", false, wrappingChanged, true); + option("gutters", [], function (cm, val) { + cm.display.gutterSpecs = getGutters(val, cm.options.lineNumbers); + updateGutters(cm); + }, true); + option("fixedGutter", true, function (cm, val) { + cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0"; + cm.refresh(); + }, true); + option("coverGutterNextToScrollbar", false, function (cm) { return updateScrollbars(cm); }, true); + option("scrollbarStyle", "native", function (cm) { + initScrollbars(cm); + updateScrollbars(cm); + cm.display.scrollbars.setScrollTop(cm.doc.scrollTop); + cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft); + }, true); + option("lineNumbers", false, function (cm, val) { + cm.display.gutterSpecs = getGutters(cm.options.gutters, val); + updateGutters(cm); + }, true); + option("firstLineNumber", 1, updateGutters, true); + option("lineNumberFormatter", function (integer) { return integer; }, updateGutters, true); + option("showCursorWhenSelecting", false, updateSelection, true); + + option("resetSelectionOnContextMenu", true); + option("lineWiseCopyCut", true); + option("pasteLinesPerSelection", true); + option("selectionsMayTouch", false); + + option("readOnly", false, function (cm, val) { + if (val == "nocursor") { + onBlur(cm); + cm.display.input.blur(); + } + cm.display.input.readOnlyChanged(val); + }); + + option("screenReaderLabel", null, function (cm, val) { + val = (val === '') ? null : val; + cm.display.input.screenReaderLabelChanged(val); + }); + + option("disableInput", false, function (cm, val) {if (!val) { cm.display.input.reset(); }}, true); + option("dragDrop", true, dragDropChanged); + option("allowDropFileTypes", null); + + option("cursorBlinkRate", 530); + option("cursorScrollMargin", 0); + option("cursorHeight", 1, updateSelection, true); + option("singleCursorHeightPerLine", true, updateSelection, true); + option("workTime", 100); + option("workDelay", 100); + option("flattenSpans", true, resetModeState, true); + option("addModeClass", false, resetModeState, true); + option("pollInterval", 100); + option("undoDepth", 200, function (cm, val) { return cm.doc.history.undoDepth = val; }); + option("historyEventDelay", 1250); + option("viewportMargin", 10, function (cm) { return cm.refresh(); }, true); + option("maxHighlightLength", 10000, resetModeState, true); + option("moveInputWithCursor", true, function (cm, val) { + if (!val) { cm.display.input.resetPosition(); } + }); + + option("tabindex", null, function (cm, val) { return cm.display.input.getField().tabIndex = val || ""; }); + option("autofocus", null); + option("direction", "ltr", function (cm, val) { return cm.doc.setDirection(val); }, true); + option("phrases", null); + } + + function dragDropChanged(cm, value, old) { + var wasOn = old && old != Init; + if (!value != !wasOn) { + var funcs = cm.display.dragFunctions; + var toggle = value ? on : off; + toggle(cm.display.scroller, "dragstart", funcs.start); + toggle(cm.display.scroller, "dragenter", funcs.enter); + toggle(cm.display.scroller, "dragover", funcs.over); + toggle(cm.display.scroller, "dragleave", funcs.leave); + toggle(cm.display.scroller, "drop", funcs.drop); + } + } + + function wrappingChanged(cm) { + if (cm.options.lineWrapping) { + addClass(cm.display.wrapper, "CodeMirror-wrap"); + cm.display.sizer.style.minWidth = ""; + cm.display.sizerWidth = null; + } else { + rmClass(cm.display.wrapper, "CodeMirror-wrap"); + findMaxLine(cm); + } + estimateLineHeights(cm); + regChange(cm); + clearCaches(cm); + setTimeout(function () { return updateScrollbars(cm); }, 100); + } + + // A CodeMirror instance represents an editor. This is the object + // that user code is usually dealing with. + + function CodeMirror(place, options) { + var this$1 = this; + + if (!(this instanceof CodeMirror)) { return new CodeMirror(place, options) } + + this.options = options = options ? copyObj(options) : {}; + // Determine effective options based on given values and defaults. + copyObj(defaults, options, false); + + var doc = options.value; + if (typeof doc == "string") { doc = new Doc(doc, options.mode, null, options.lineSeparator, options.direction); } + else if (options.mode) { doc.modeOption = options.mode; } + this.doc = doc; + + var input = new CodeMirror.inputStyles[options.inputStyle](this); + var display = this.display = new Display(place, doc, input, options); + display.wrapper.CodeMirror = this; + themeChanged(this); + if (options.lineWrapping) + { this.display.wrapper.className += " CodeMirror-wrap"; } + initScrollbars(this); + + this.state = { + keyMaps: [], // stores maps added by addKeyMap + overlays: [], // highlighting overlays, as added by addOverlay + modeGen: 0, // bumped when mode/overlay changes, used to invalidate highlighting info + overwrite: false, + delayingBlurEvent: false, + focused: false, + suppressEdits: false, // used to disable editing during key handlers when in readOnly mode + pasteIncoming: -1, cutIncoming: -1, // help recognize paste/cut edits in input.poll + selectingText: false, + draggingText: false, + highlight: new Delayed(), // stores highlight worker timeout + keySeq: null, // Unfinished key sequence + specialChars: null + }; + + if (options.autofocus && !mobile) { display.input.focus(); } + + // Override magic textarea content restore that IE sometimes does + // on our hidden textarea on reload + if (ie && ie_version < 11) { setTimeout(function () { return this$1.display.input.reset(true); }, 20); } + + registerEventHandlers(this); + ensureGlobalHandlers(); + + startOperation(this); + this.curOp.forceUpdate = true; + attachDoc(this, doc); + + if ((options.autofocus && !mobile) || this.hasFocus()) + { setTimeout(function () { + if (this$1.hasFocus() && !this$1.state.focused) { onFocus(this$1); } + }, 20); } + else + { onBlur(this); } + + for (var opt in optionHandlers) { if (optionHandlers.hasOwnProperty(opt)) + { optionHandlers[opt](this, options[opt], Init); } } + maybeUpdateLineNumberWidth(this); + if (options.finishInit) { options.finishInit(this); } + for (var i = 0; i < initHooks.length; ++i) { initHooks[i](this); } + endOperation(this); + // Suppress optimizelegibility in Webkit, since it breaks text + // measuring on line wrapping boundaries. + if (webkit && options.lineWrapping && + getComputedStyle(display.lineDiv).textRendering == "optimizelegibility") + { display.lineDiv.style.textRendering = "auto"; } + } + + // The default configuration options. + CodeMirror.defaults = defaults; + // Functions to run when options are changed. + CodeMirror.optionHandlers = optionHandlers; + + // Attach the necessary event handlers when initializing the editor + function registerEventHandlers(cm) { + var d = cm.display; + on(d.scroller, "mousedown", operation(cm, onMouseDown)); + // Older IE's will not fire a second mousedown for a double click + if (ie && ie_version < 11) + { on(d.scroller, "dblclick", operation(cm, function (e) { + if (signalDOMEvent(cm, e)) { return } + var pos = posFromMouse(cm, e); + if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) { return } + e_preventDefault(e); + var word = cm.findWordAt(pos); + extendSelection(cm.doc, word.anchor, word.head); + })); } + else + { on(d.scroller, "dblclick", function (e) { return signalDOMEvent(cm, e) || e_preventDefault(e); }); } + // Some browsers fire contextmenu *after* opening the menu, at + // which point we can't mess with it anymore. Context menu is + // handled in onMouseDown for these browsers. + on(d.scroller, "contextmenu", function (e) { return onContextMenu(cm, e); }); + on(d.input.getField(), "contextmenu", function (e) { + if (!d.scroller.contains(e.target)) { onContextMenu(cm, e); } + }); + + // Used to suppress mouse event handling when a touch happens + var touchFinished, prevTouch = {end: 0}; + function finishTouch() { + if (d.activeTouch) { + touchFinished = setTimeout(function () { return d.activeTouch = null; }, 1000); + prevTouch = d.activeTouch; + prevTouch.end = +new Date; + } + } + function isMouseLikeTouchEvent(e) { + if (e.touches.length != 1) { return false } + var touch = e.touches[0]; + return touch.radiusX <= 1 && touch.radiusY <= 1 + } + function farAway(touch, other) { + if (other.left == null) { return true } + var dx = other.left - touch.left, dy = other.top - touch.top; + return dx * dx + dy * dy > 20 * 20 + } + on(d.scroller, "touchstart", function (e) { + if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e) && !clickInGutter(cm, e)) { + d.input.ensurePolled(); + clearTimeout(touchFinished); + var now = +new Date; + d.activeTouch = {start: now, moved: false, + prev: now - prevTouch.end <= 300 ? prevTouch : null}; + if (e.touches.length == 1) { + d.activeTouch.left = e.touches[0].pageX; + d.activeTouch.top = e.touches[0].pageY; + } + } + }); + on(d.scroller, "touchmove", function () { + if (d.activeTouch) { d.activeTouch.moved = true; } + }); + on(d.scroller, "touchend", function (e) { + var touch = d.activeTouch; + if (touch && !eventInWidget(d, e) && touch.left != null && + !touch.moved && new Date - touch.start < 300) { + var pos = cm.coordsChar(d.activeTouch, "page"), range; + if (!touch.prev || farAway(touch, touch.prev)) // Single tap + { range = new Range(pos, pos); } + else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap + { range = cm.findWordAt(pos); } + else // Triple tap + { range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))); } + cm.setSelection(range.anchor, range.head); + cm.focus(); + e_preventDefault(e); + } + finishTouch(); + }); + on(d.scroller, "touchcancel", finishTouch); + + // Sync scrolling between fake scrollbars and real scrollable + // area, ensure viewport is updated when scrolling. + on(d.scroller, "scroll", function () { + if (d.scroller.clientHeight) { + updateScrollTop(cm, d.scroller.scrollTop); + setScrollLeft(cm, d.scroller.scrollLeft, true); + signal(cm, "scroll", cm); + } + }); + + // Listen to wheel events in order to try and update the viewport on time. + on(d.scroller, "mousewheel", function (e) { return onScrollWheel(cm, e); }); + on(d.scroller, "DOMMouseScroll", function (e) { return onScrollWheel(cm, e); }); + + // Prevent wrapper from ever scrolling + on(d.wrapper, "scroll", function () { return d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; }); + + d.dragFunctions = { + enter: function (e) {if (!signalDOMEvent(cm, e)) { e_stop(e); }}, + over: function (e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e); }}, + start: function (e) { return onDragStart(cm, e); }, + drop: operation(cm, onDrop), + leave: function (e) {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm); }} + }; + + var inp = d.input.getField(); + on(inp, "keyup", function (e) { return onKeyUp.call(cm, e); }); + on(inp, "keydown", operation(cm, onKeyDown)); + on(inp, "keypress", operation(cm, onKeyPress)); + on(inp, "focus", function (e) { return onFocus(cm, e); }); + on(inp, "blur", function (e) { return onBlur(cm, e); }); + } + + var initHooks = []; + CodeMirror.defineInitHook = function (f) { return initHooks.push(f); }; + + // Indent the given line. The how parameter can be "smart", + // "add"/null, "subtract", or "prev". When aggressive is false + // (typically set to true for forced single-line indents), empty + // lines are not indented, and places where the mode returns Pass + // are left alone. + function indentLine(cm, n, how, aggressive) { + var doc = cm.doc, state; + if (how == null) { how = "add"; } + if (how == "smart") { + // Fall back to "prev" when the mode doesn't have an indentation + // method. + if (!doc.mode.indent) { how = "prev"; } + else { state = getContextBefore(cm, n).state; } + } + + var tabSize = cm.options.tabSize; + var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize); + if (line.stateAfter) { line.stateAfter = null; } + var curSpaceString = line.text.match(/^\s*/)[0], indentation; + if (!aggressive && !/\S/.test(line.text)) { + indentation = 0; + how = "not"; + } else if (how == "smart") { + indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text); + if (indentation == Pass || indentation > 150) { + if (!aggressive) { return } + how = "prev"; + } + } + if (how == "prev") { + if (n > doc.first) { indentation = countColumn(getLine(doc, n-1).text, null, tabSize); } + else { indentation = 0; } + } else if (how == "add") { + indentation = curSpace + cm.options.indentUnit; + } else if (how == "subtract") { + indentation = curSpace - cm.options.indentUnit; + } else if (typeof how == "number") { + indentation = curSpace + how; + } + indentation = Math.max(0, indentation); + + var indentString = "", pos = 0; + if (cm.options.indentWithTabs) + { for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";} } + if (pos < indentation) { indentString += spaceStr(indentation - pos); } + + if (indentString != curSpaceString) { + replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input"); + line.stateAfter = null; + return true + } else { + // Ensure that, if the cursor was in the whitespace at the start + // of the line, it is moved to the end of that space. + for (var i$1 = 0; i$1 < doc.sel.ranges.length; i$1++) { + var range = doc.sel.ranges[i$1]; + if (range.head.line == n && range.head.ch < curSpaceString.length) { + var pos$1 = Pos(n, curSpaceString.length); + replaceOneSelection(doc, i$1, new Range(pos$1, pos$1)); + break + } + } + } + } + + // This will be set to a {lineWise: bool, text: [string]} object, so + // that, when pasting, we know what kind of selections the copied + // text was made out of. + var lastCopied = null; + + function setLastCopied(newLastCopied) { + lastCopied = newLastCopied; + } + + function applyTextInput(cm, inserted, deleted, sel, origin) { + var doc = cm.doc; + cm.display.shift = false; + if (!sel) { sel = doc.sel; } + + var recent = +new Date - 200; + var paste = origin == "paste" || cm.state.pasteIncoming > recent; + var textLines = splitLinesAuto(inserted), multiPaste = null; + // When pasting N lines into N selections, insert one line per selection + if (paste && sel.ranges.length > 1) { + if (lastCopied && lastCopied.text.join("\n") == inserted) { + if (sel.ranges.length % lastCopied.text.length == 0) { + multiPaste = []; + for (var i = 0; i < lastCopied.text.length; i++) + { multiPaste.push(doc.splitLines(lastCopied.text[i])); } + } + } else if (textLines.length == sel.ranges.length && cm.options.pasteLinesPerSelection) { + multiPaste = map(textLines, function (l) { return [l]; }); + } + } + + var updateInput = cm.curOp.updateInput; + // Normal behavior is to insert the new text into every selection + for (var i$1 = sel.ranges.length - 1; i$1 >= 0; i$1--) { + var range = sel.ranges[i$1]; + var from = range.from(), to = range.to(); + if (range.empty()) { + if (deleted && deleted > 0) // Handle deletion + { from = Pos(from.line, from.ch - deleted); } + else if (cm.state.overwrite && !paste) // Handle overwrite + { to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)); } + else if (paste && lastCopied && lastCopied.lineWise && lastCopied.text.join("\n") == textLines.join("\n")) + { from = to = Pos(from.line, 0); } + } + var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i$1 % multiPaste.length] : textLines, + origin: origin || (paste ? "paste" : cm.state.cutIncoming > recent ? "cut" : "+input")}; + makeChange(cm.doc, changeEvent); + signalLater(cm, "inputRead", cm, changeEvent); + } + if (inserted && !paste) + { triggerElectric(cm, inserted); } + + ensureCursorVisible(cm); + if (cm.curOp.updateInput < 2) { cm.curOp.updateInput = updateInput; } + cm.curOp.typing = true; + cm.state.pasteIncoming = cm.state.cutIncoming = -1; + } + + function handlePaste(e, cm) { + var pasted = e.clipboardData && e.clipboardData.getData("Text"); + if (pasted) { + e.preventDefault(); + if (!cm.isReadOnly() && !cm.options.disableInput) + { runInOp(cm, function () { return applyTextInput(cm, pasted, 0, null, "paste"); }); } + return true + } + } + + function triggerElectric(cm, inserted) { + // When an 'electric' character is inserted, immediately trigger a reindent + if (!cm.options.electricChars || !cm.options.smartIndent) { return } + var sel = cm.doc.sel; + + for (var i = sel.ranges.length - 1; i >= 0; i--) { + var range = sel.ranges[i]; + if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) { continue } + var mode = cm.getModeAt(range.head); + var indented = false; + if (mode.electricChars) { + for (var j = 0; j < mode.electricChars.length; j++) + { if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) { + indented = indentLine(cm, range.head.line, "smart"); + break + } } + } else if (mode.electricInput) { + if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch))) + { indented = indentLine(cm, range.head.line, "smart"); } + } + if (indented) { signalLater(cm, "electricInput", cm, range.head.line); } + } + } + + function copyableRanges(cm) { + var text = [], ranges = []; + for (var i = 0; i < cm.doc.sel.ranges.length; i++) { + var line = cm.doc.sel.ranges[i].head.line; + var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)}; + ranges.push(lineRange); + text.push(cm.getRange(lineRange.anchor, lineRange.head)); + } + return {text: text, ranges: ranges} + } + + function disableBrowserMagic(field, spellcheck, autocorrect, autocapitalize) { + field.setAttribute("autocorrect", autocorrect ? "" : "off"); + field.setAttribute("autocapitalize", autocapitalize ? "" : "off"); + field.setAttribute("spellcheck", !!spellcheck); + } + + function hiddenTextarea() { + var te = elt("textarea", null, null, "position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none"); + var div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;"); + // The textarea is kept positioned near the cursor to prevent the + // fact that it'll be scrolled into view on input from scrolling + // our fake cursor out of view. On webkit, when wrap=off, paste is + // very slow. So make the area wide instead. + if (webkit) { te.style.width = "1000px"; } + else { te.setAttribute("wrap", "off"); } + // If border: 0; -- iOS fails to open keyboard (issue #1287) + if (ios) { te.style.border = "1px solid black"; } + disableBrowserMagic(te); + return div + } + + // The publicly visible API. Note that methodOp(f) means + // 'wrap f in an operation, performed on its `this` parameter'. + + // This is not the complete set of editor methods. Most of the + // methods defined on the Doc type are also injected into + // CodeMirror.prototype, for backwards compatibility and + // convenience. + + function addEditorMethods(CodeMirror) { + var optionHandlers = CodeMirror.optionHandlers; + + var helpers = CodeMirror.helpers = {}; + + CodeMirror.prototype = { + constructor: CodeMirror, + focus: function(){window.focus(); this.display.input.focus();}, + + setOption: function(option, value) { + var options = this.options, old = options[option]; + if (options[option] == value && option != "mode") { return } + options[option] = value; + if (optionHandlers.hasOwnProperty(option)) + { operation(this, optionHandlers[option])(this, value, old); } + signal(this, "optionChange", this, option); + }, + + getOption: function(option) {return this.options[option]}, + getDoc: function() {return this.doc}, + + addKeyMap: function(map, bottom) { + this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map)); + }, + removeKeyMap: function(map) { + var maps = this.state.keyMaps; + for (var i = 0; i < maps.length; ++i) + { if (maps[i] == map || maps[i].name == map) { + maps.splice(i, 1); + return true + } } + }, + + addOverlay: methodOp(function(spec, options) { + var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec); + if (mode.startState) { throw new Error("Overlays may not be stateful.") } + insertSorted(this.state.overlays, + {mode: mode, modeSpec: spec, opaque: options && options.opaque, + priority: (options && options.priority) || 0}, + function (overlay) { return overlay.priority; }); + this.state.modeGen++; + regChange(this); + }), + removeOverlay: methodOp(function(spec) { + var overlays = this.state.overlays; + for (var i = 0; i < overlays.length; ++i) { + var cur = overlays[i].modeSpec; + if (cur == spec || typeof spec == "string" && cur.name == spec) { + overlays.splice(i, 1); + this.state.modeGen++; + regChange(this); + return + } + } + }), + + indentLine: methodOp(function(n, dir, aggressive) { + if (typeof dir != "string" && typeof dir != "number") { + if (dir == null) { dir = this.options.smartIndent ? "smart" : "prev"; } + else { dir = dir ? "add" : "subtract"; } + } + if (isLine(this.doc, n)) { indentLine(this, n, dir, aggressive); } + }), + indentSelection: methodOp(function(how) { + var ranges = this.doc.sel.ranges, end = -1; + for (var i = 0; i < ranges.length; i++) { + var range = ranges[i]; + if (!range.empty()) { + var from = range.from(), to = range.to(); + var start = Math.max(end, from.line); + end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1; + for (var j = start; j < end; ++j) + { indentLine(this, j, how); } + var newRanges = this.doc.sel.ranges; + if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0) + { replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll); } + } else if (range.head.line > end) { + indentLine(this, range.head.line, how, true); + end = range.head.line; + if (i == this.doc.sel.primIndex) { ensureCursorVisible(this); } + } + } + }), + + // Fetch the parser token for a given character. Useful for hacks + // that want to inspect the mode state (say, for completion). + getTokenAt: function(pos, precise) { + return takeToken(this, pos, precise) + }, + + getLineTokens: function(line, precise) { + return takeToken(this, Pos(line), precise, true) + }, + + getTokenTypeAt: function(pos) { + pos = clipPos(this.doc, pos); + var styles = getLineStyles(this, getLine(this.doc, pos.line)); + var before = 0, after = (styles.length - 1) / 2, ch = pos.ch; + var type; + if (ch == 0) { type = styles[2]; } + else { for (;;) { + var mid = (before + after) >> 1; + if ((mid ? styles[mid * 2 - 1] : 0) >= ch) { after = mid; } + else if (styles[mid * 2 + 1] < ch) { before = mid + 1; } + else { type = styles[mid * 2 + 2]; break } + } } + var cut = type ? type.indexOf("overlay ") : -1; + return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1) + }, + + getModeAt: function(pos) { + var mode = this.doc.mode; + if (!mode.innerMode) { return mode } + return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode + }, + + getHelper: function(pos, type) { + return this.getHelpers(pos, type)[0] + }, + + getHelpers: function(pos, type) { + var found = []; + if (!helpers.hasOwnProperty(type)) { return found } + var help = helpers[type], mode = this.getModeAt(pos); + if (typeof mode[type] == "string") { + if (help[mode[type]]) { found.push(help[mode[type]]); } + } else if (mode[type]) { + for (var i = 0; i < mode[type].length; i++) { + var val = help[mode[type][i]]; + if (val) { found.push(val); } + } + } else if (mode.helperType && help[mode.helperType]) { + found.push(help[mode.helperType]); + } else if (help[mode.name]) { + found.push(help[mode.name]); + } + for (var i$1 = 0; i$1 < help._global.length; i$1++) { + var cur = help._global[i$1]; + if (cur.pred(mode, this) && indexOf(found, cur.val) == -1) + { found.push(cur.val); } + } + return found + }, + + getStateAfter: function(line, precise) { + var doc = this.doc; + line = clipLine(doc, line == null ? doc.first + doc.size - 1: line); + return getContextBefore(this, line + 1, precise).state + }, + + cursorCoords: function(start, mode) { + var pos, range = this.doc.sel.primary(); + if (start == null) { pos = range.head; } + else if (typeof start == "object") { pos = clipPos(this.doc, start); } + else { pos = start ? range.from() : range.to(); } + return cursorCoords(this, pos, mode || "page") + }, + + charCoords: function(pos, mode) { + return charCoords(this, clipPos(this.doc, pos), mode || "page") + }, + + coordsChar: function(coords, mode) { + coords = fromCoordSystem(this, coords, mode || "page"); + return coordsChar(this, coords.left, coords.top) + }, + + lineAtHeight: function(height, mode) { + height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top; + return lineAtHeight(this.doc, height + this.display.viewOffset) + }, + heightAtLine: function(line, mode, includeWidgets) { + var end = false, lineObj; + if (typeof line == "number") { + var last = this.doc.first + this.doc.size - 1; + if (line < this.doc.first) { line = this.doc.first; } + else if (line > last) { line = last; end = true; } + lineObj = getLine(this.doc, line); + } else { + lineObj = line; + } + return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page", includeWidgets || end).top + + (end ? this.doc.height - heightAtLine(lineObj) : 0) + }, + + defaultTextHeight: function() { return textHeight(this.display) }, + defaultCharWidth: function() { return charWidth(this.display) }, + + getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo}}, + + addWidget: function(pos, node, scroll, vert, horiz) { + var display = this.display; + pos = cursorCoords(this, clipPos(this.doc, pos)); + var top = pos.bottom, left = pos.left; + node.style.position = "absolute"; + node.setAttribute("cm-ignore-events", "true"); + this.display.input.setUneditable(node); + display.sizer.appendChild(node); + if (vert == "over") { + top = pos.top; + } else if (vert == "above" || vert == "near") { + var vspace = Math.max(display.wrapper.clientHeight, this.doc.height), + hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth); + // Default to positioning above (if specified and possible); otherwise default to positioning below + if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight) + { top = pos.top - node.offsetHeight; } + else if (pos.bottom + node.offsetHeight <= vspace) + { top = pos.bottom; } + if (left + node.offsetWidth > hspace) + { left = hspace - node.offsetWidth; } + } + node.style.top = top + "px"; + node.style.left = node.style.right = ""; + if (horiz == "right") { + left = display.sizer.clientWidth - node.offsetWidth; + node.style.right = "0px"; + } else { + if (horiz == "left") { left = 0; } + else if (horiz == "middle") { left = (display.sizer.clientWidth - node.offsetWidth) / 2; } + node.style.left = left + "px"; + } + if (scroll) + { scrollIntoView(this, {left: left, top: top, right: left + node.offsetWidth, bottom: top + node.offsetHeight}); } + }, + + triggerOnKeyDown: methodOp(onKeyDown), + triggerOnKeyPress: methodOp(onKeyPress), + triggerOnKeyUp: onKeyUp, + triggerOnMouseDown: methodOp(onMouseDown), + + execCommand: function(cmd) { + if (commands.hasOwnProperty(cmd)) + { return commands[cmd].call(null, this) } + }, + + triggerElectric: methodOp(function(text) { triggerElectric(this, text); }), + + findPosH: function(from, amount, unit, visually) { + var dir = 1; + if (amount < 0) { dir = -1; amount = -amount; } + var cur = clipPos(this.doc, from); + for (var i = 0; i < amount; ++i) { + cur = findPosH(this.doc, cur, dir, unit, visually); + if (cur.hitSide) { break } + } + return cur + }, + + moveH: methodOp(function(dir, unit) { + var this$1 = this; + + this.extendSelectionsBy(function (range) { + if (this$1.display.shift || this$1.doc.extend || range.empty()) + { return findPosH(this$1.doc, range.head, dir, unit, this$1.options.rtlMoveVisually) } + else + { return dir < 0 ? range.from() : range.to() } + }, sel_move); + }), + + deleteH: methodOp(function(dir, unit) { + var sel = this.doc.sel, doc = this.doc; + if (sel.somethingSelected()) + { doc.replaceSelection("", null, "+delete"); } + else + { deleteNearSelection(this, function (range) { + var other = findPosH(doc, range.head, dir, unit, false); + return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other} + }); } + }), + + findPosV: function(from, amount, unit, goalColumn) { + var dir = 1, x = goalColumn; + if (amount < 0) { dir = -1; amount = -amount; } + var cur = clipPos(this.doc, from); + for (var i = 0; i < amount; ++i) { + var coords = cursorCoords(this, cur, "div"); + if (x == null) { x = coords.left; } + else { coords.left = x; } + cur = findPosV(this, coords, dir, unit); + if (cur.hitSide) { break } + } + return cur + }, + + moveV: methodOp(function(dir, unit) { + var this$1 = this; + + var doc = this.doc, goals = []; + var collapse = !this.display.shift && !doc.extend && doc.sel.somethingSelected(); + doc.extendSelectionsBy(function (range) { + if (collapse) + { return dir < 0 ? range.from() : range.to() } + var headPos = cursorCoords(this$1, range.head, "div"); + if (range.goalColumn != null) { headPos.left = range.goalColumn; } + goals.push(headPos.left); + var pos = findPosV(this$1, headPos, dir, unit); + if (unit == "page" && range == doc.sel.primary()) + { addToScrollTop(this$1, charCoords(this$1, pos, "div").top - headPos.top); } + return pos + }, sel_move); + if (goals.length) { for (var i = 0; i < doc.sel.ranges.length; i++) + { doc.sel.ranges[i].goalColumn = goals[i]; } } + }), + + // Find the word at the given position (as returned by coordsChar). + findWordAt: function(pos) { + var doc = this.doc, line = getLine(doc, pos.line).text; + var start = pos.ch, end = pos.ch; + if (line) { + var helper = this.getHelper(pos, "wordChars"); + if ((pos.sticky == "before" || end == line.length) && start) { --start; } else { ++end; } + var startChar = line.charAt(start); + var check = isWordChar(startChar, helper) + ? function (ch) { return isWordChar(ch, helper); } + : /\s/.test(startChar) ? function (ch) { return /\s/.test(ch); } + : function (ch) { return (!/\s/.test(ch) && !isWordChar(ch)); }; + while (start > 0 && check(line.charAt(start - 1))) { --start; } + while (end < line.length && check(line.charAt(end))) { ++end; } + } + return new Range(Pos(pos.line, start), Pos(pos.line, end)) + }, + + toggleOverwrite: function(value) { + if (value != null && value == this.state.overwrite) { return } + if (this.state.overwrite = !this.state.overwrite) + { addClass(this.display.cursorDiv, "CodeMirror-overwrite"); } + else + { rmClass(this.display.cursorDiv, "CodeMirror-overwrite"); } + + signal(this, "overwriteToggle", this, this.state.overwrite); + }, + hasFocus: function() { return this.display.input.getField() == activeElt() }, + isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit) }, + + scrollTo: methodOp(function (x, y) { scrollToCoords(this, x, y); }), + getScrollInfo: function() { + var scroller = this.display.scroller; + return {left: scroller.scrollLeft, top: scroller.scrollTop, + height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight, + width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth, + clientHeight: displayHeight(this), clientWidth: displayWidth(this)} + }, + + scrollIntoView: methodOp(function(range, margin) { + if (range == null) { + range = {from: this.doc.sel.primary().head, to: null}; + if (margin == null) { margin = this.options.cursorScrollMargin; } + } else if (typeof range == "number") { + range = {from: Pos(range, 0), to: null}; + } else if (range.from == null) { + range = {from: range, to: null}; + } + if (!range.to) { range.to = range.from; } + range.margin = margin || 0; + + if (range.from.line != null) { + scrollToRange(this, range); + } else { + scrollToCoordsRange(this, range.from, range.to, range.margin); + } + }), + + setSize: methodOp(function(width, height) { + var this$1 = this; + + var interpret = function (val) { return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val; }; + if (width != null) { this.display.wrapper.style.width = interpret(width); } + if (height != null) { this.display.wrapper.style.height = interpret(height); } + if (this.options.lineWrapping) { clearLineMeasurementCache(this); } + var lineNo = this.display.viewFrom; + this.doc.iter(lineNo, this.display.viewTo, function (line) { + if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) + { if (line.widgets[i].noHScroll) { regLineChange(this$1, lineNo, "widget"); break } } } + ++lineNo; + }); + this.curOp.forceUpdate = true; + signal(this, "refresh", this); + }), + + operation: function(f){return runInOp(this, f)}, + startOperation: function(){return startOperation(this)}, + endOperation: function(){return endOperation(this)}, + + refresh: methodOp(function() { + var oldHeight = this.display.cachedTextHeight; + regChange(this); + this.curOp.forceUpdate = true; + clearCaches(this); + scrollToCoords(this, this.doc.scrollLeft, this.doc.scrollTop); + updateGutterSpace(this.display); + if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5 || this.options.lineWrapping) + { estimateLineHeights(this); } + signal(this, "refresh", this); + }), + + swapDoc: methodOp(function(doc) { + var old = this.doc; + old.cm = null; + // Cancel the current text selection if any (#5821) + if (this.state.selectingText) { this.state.selectingText(); } + attachDoc(this, doc); + clearCaches(this); + this.display.input.reset(); + scrollToCoords(this, doc.scrollLeft, doc.scrollTop); + this.curOp.forceScroll = true; + signalLater(this, "swapDoc", this, old); + return old + }), + + phrase: function(phraseText) { + var phrases = this.options.phrases; + return phrases && Object.prototype.hasOwnProperty.call(phrases, phraseText) ? phrases[phraseText] : phraseText + }, + + getInputField: function(){return this.display.input.getField()}, + getWrapperElement: function(){return this.display.wrapper}, + getScrollerElement: function(){return this.display.scroller}, + getGutterElement: function(){return this.display.gutters} + }; + eventMixin(CodeMirror); + + CodeMirror.registerHelper = function(type, name, value) { + if (!helpers.hasOwnProperty(type)) { helpers[type] = CodeMirror[type] = {_global: []}; } + helpers[type][name] = value; + }; + CodeMirror.registerGlobalHelper = function(type, name, predicate, value) { + CodeMirror.registerHelper(type, name, value); + helpers[type]._global.push({pred: predicate, val: value}); + }; + } + + // Used for horizontal relative motion. Dir is -1 or 1 (left or + // right), unit can be "codepoint", "char", "column" (like char, but + // doesn't cross line boundaries), "word" (across next word), or + // "group" (to the start of next group of word or + // non-word-non-whitespace chars). The visually param controls + // whether, in right-to-left text, direction 1 means to move towards + // the next index in the string, or towards the character to the right + // of the current position. The resulting position will have a + // hitSide=true property if it reached the end of the document. + function findPosH(doc, pos, dir, unit, visually) { + var oldPos = pos; + var origDir = dir; + var lineObj = getLine(doc, pos.line); + var lineDir = visually && doc.direction == "rtl" ? -dir : dir; + function findNextLine() { + var l = pos.line + lineDir; + if (l < doc.first || l >= doc.first + doc.size) { return false } + pos = new Pos(l, pos.ch, pos.sticky); + return lineObj = getLine(doc, l) + } + function moveOnce(boundToLine) { + var next; + if (unit == "codepoint") { + var ch = lineObj.text.charCodeAt(pos.ch + (dir > 0 ? 0 : -1)); + if (isNaN(ch)) { + next = null; + } else { + var astral = dir > 0 ? ch >= 0xD800 && ch < 0xDC00 : ch >= 0xDC00 && ch < 0xDFFF; + next = new Pos(pos.line, Math.max(0, Math.min(lineObj.text.length, pos.ch + dir * (astral ? 2 : 1))), -dir); + } + } else if (visually) { + next = moveVisually(doc.cm, lineObj, pos, dir); + } else { + next = moveLogically(lineObj, pos, dir); + } + if (next == null) { + if (!boundToLine && findNextLine()) + { pos = endOfLine(visually, doc.cm, lineObj, pos.line, lineDir); } + else + { return false } + } else { + pos = next; + } + return true + } + + if (unit == "char" || unit == "codepoint") { + moveOnce(); + } else if (unit == "column") { + moveOnce(true); + } else if (unit == "word" || unit == "group") { + var sawType = null, group = unit == "group"; + var helper = doc.cm && doc.cm.getHelper(pos, "wordChars"); + for (var first = true;; first = false) { + if (dir < 0 && !moveOnce(!first)) { break } + var cur = lineObj.text.charAt(pos.ch) || "\n"; + var type = isWordChar(cur, helper) ? "w" + : group && cur == "\n" ? "n" + : !group || /\s/.test(cur) ? null + : "p"; + if (group && !first && !type) { type = "s"; } + if (sawType && sawType != type) { + if (dir < 0) {dir = 1; moveOnce(); pos.sticky = "after";} + break + } + + if (type) { sawType = type; } + if (dir > 0 && !moveOnce(!first)) { break } + } + } + var result = skipAtomic(doc, pos, oldPos, origDir, true); + if (equalCursorPos(oldPos, result)) { result.hitSide = true; } + return result + } + + // For relative vertical movement. Dir may be -1 or 1. Unit can be + // "page" or "line". The resulting position will have a hitSide=true + // property if it reached the end of the document. + function findPosV(cm, pos, dir, unit) { + var doc = cm.doc, x = pos.left, y; + if (unit == "page") { + var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight); + var moveAmount = Math.max(pageSize - .5 * textHeight(cm.display), 3); + y = (dir > 0 ? pos.bottom : pos.top) + dir * moveAmount; + + } else if (unit == "line") { + y = dir > 0 ? pos.bottom + 3 : pos.top - 3; + } + var target; + for (;;) { + target = coordsChar(cm, x, y); + if (!target.outside) { break } + if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break } + y += dir * 5; + } + return target + } + + // CONTENTEDITABLE INPUT STYLE + + var ContentEditableInput = function(cm) { + this.cm = cm; + this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null; + this.polling = new Delayed(); + this.composing = null; + this.gracePeriod = false; + this.readDOMTimeout = null; + }; + + ContentEditableInput.prototype.init = function (display) { + var this$1 = this; + + var input = this, cm = input.cm; + var div = input.div = display.lineDiv; + disableBrowserMagic(div, cm.options.spellcheck, cm.options.autocorrect, cm.options.autocapitalize); + + function belongsToInput(e) { + for (var t = e.target; t; t = t.parentNode) { + if (t == div) { return true } + if (/\bCodeMirror-(?:line)?widget\b/.test(t.className)) { break } + } + return false + } + + on(div, "paste", function (e) { + if (!belongsToInput(e) || signalDOMEvent(cm, e) || handlePaste(e, cm)) { return } + // IE doesn't fire input events, so we schedule a read for the pasted content in this way + if (ie_version <= 11) { setTimeout(operation(cm, function () { return this$1.updateFromDOM(); }), 20); } + }); + + on(div, "compositionstart", function (e) { + this$1.composing = {data: e.data, done: false}; + }); + on(div, "compositionupdate", function (e) { + if (!this$1.composing) { this$1.composing = {data: e.data, done: false}; } + }); + on(div, "compositionend", function (e) { + if (this$1.composing) { + if (e.data != this$1.composing.data) { this$1.readFromDOMSoon(); } + this$1.composing.done = true; + } + }); + + on(div, "touchstart", function () { return input.forceCompositionEnd(); }); + + on(div, "input", function () { + if (!this$1.composing) { this$1.readFromDOMSoon(); } + }); + + function onCopyCut(e) { + if (!belongsToInput(e) || signalDOMEvent(cm, e)) { return } + if (cm.somethingSelected()) { + setLastCopied({lineWise: false, text: cm.getSelections()}); + if (e.type == "cut") { cm.replaceSelection("", null, "cut"); } + } else if (!cm.options.lineWiseCopyCut) { + return + } else { + var ranges = copyableRanges(cm); + setLastCopied({lineWise: true, text: ranges.text}); + if (e.type == "cut") { + cm.operation(function () { + cm.setSelections(ranges.ranges, 0, sel_dontScroll); + cm.replaceSelection("", null, "cut"); + }); + } + } + if (e.clipboardData) { + e.clipboardData.clearData(); + var content = lastCopied.text.join("\n"); + // iOS exposes the clipboard API, but seems to discard content inserted into it + e.clipboardData.setData("Text", content); + if (e.clipboardData.getData("Text") == content) { + e.preventDefault(); + return + } + } + // Old-fashioned briefly-focus-a-textarea hack + var kludge = hiddenTextarea(), te = kludge.firstChild; + cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild); + te.value = lastCopied.text.join("\n"); + var hadFocus = document.activeElement; + selectInput(te); + setTimeout(function () { + cm.display.lineSpace.removeChild(kludge); + hadFocus.focus(); + if (hadFocus == div) { input.showPrimarySelection(); } + }, 50); + } + on(div, "copy", onCopyCut); + on(div, "cut", onCopyCut); + }; + + ContentEditableInput.prototype.screenReaderLabelChanged = function (label) { + // Label for screenreaders, accessibility + if(label) { + this.div.setAttribute('aria-label', label); + } else { + this.div.removeAttribute('aria-label'); + } + }; + + ContentEditableInput.prototype.prepareSelection = function () { + var result = prepareSelection(this.cm, false); + result.focus = document.activeElement == this.div; + return result + }; + + ContentEditableInput.prototype.showSelection = function (info, takeFocus) { + if (!info || !this.cm.display.view.length) { return } + if (info.focus || takeFocus) { this.showPrimarySelection(); } + this.showMultipleSelections(info); + }; + + ContentEditableInput.prototype.getSelection = function () { + return this.cm.display.wrapper.ownerDocument.getSelection() + }; + + ContentEditableInput.prototype.showPrimarySelection = function () { + var sel = this.getSelection(), cm = this.cm, prim = cm.doc.sel.primary(); + var from = prim.from(), to = prim.to(); + + if (cm.display.viewTo == cm.display.viewFrom || from.line >= cm.display.viewTo || to.line < cm.display.viewFrom) { + sel.removeAllRanges(); + return + } + + var curAnchor = domToPos(cm, sel.anchorNode, sel.anchorOffset); + var curFocus = domToPos(cm, sel.focusNode, sel.focusOffset); + if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad && + cmp(minPos(curAnchor, curFocus), from) == 0 && + cmp(maxPos(curAnchor, curFocus), to) == 0) + { return } + + var view = cm.display.view; + var start = (from.line >= cm.display.viewFrom && posToDOM(cm, from)) || + {node: view[0].measure.map[2], offset: 0}; + var end = to.line < cm.display.viewTo && posToDOM(cm, to); + if (!end) { + var measure = view[view.length - 1].measure; + var map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map; + end = {node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3]}; + } + + if (!start || !end) { + sel.removeAllRanges(); + return + } + + var old = sel.rangeCount && sel.getRangeAt(0), rng; + try { rng = range(start.node, start.offset, end.offset, end.node); } + catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible + if (rng) { + if (!gecko && cm.state.focused) { + sel.collapse(start.node, start.offset); + if (!rng.collapsed) { + sel.removeAllRanges(); + sel.addRange(rng); + } + } else { + sel.removeAllRanges(); + sel.addRange(rng); + } + if (old && sel.anchorNode == null) { sel.addRange(old); } + else if (gecko) { this.startGracePeriod(); } + } + this.rememberSelection(); + }; + + ContentEditableInput.prototype.startGracePeriod = function () { + var this$1 = this; + + clearTimeout(this.gracePeriod); + this.gracePeriod = setTimeout(function () { + this$1.gracePeriod = false; + if (this$1.selectionChanged()) + { this$1.cm.operation(function () { return this$1.cm.curOp.selectionChanged = true; }); } + }, 20); + }; + + ContentEditableInput.prototype.showMultipleSelections = function (info) { + removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors); + removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection); + }; + + ContentEditableInput.prototype.rememberSelection = function () { + var sel = this.getSelection(); + this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset; + this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset; + }; + + ContentEditableInput.prototype.selectionInEditor = function () { + var sel = this.getSelection(); + if (!sel.rangeCount) { return false } + var node = sel.getRangeAt(0).commonAncestorContainer; + return contains(this.div, node) + }; + + ContentEditableInput.prototype.focus = function () { + if (this.cm.options.readOnly != "nocursor") { + if (!this.selectionInEditor() || document.activeElement != this.div) + { this.showSelection(this.prepareSelection(), true); } + this.div.focus(); + } + }; + ContentEditableInput.prototype.blur = function () { this.div.blur(); }; + ContentEditableInput.prototype.getField = function () { return this.div }; + + ContentEditableInput.prototype.supportsTouch = function () { return true }; + + ContentEditableInput.prototype.receivedFocus = function () { + var input = this; + if (this.selectionInEditor()) + { this.pollSelection(); } + else + { runInOp(this.cm, function () { return input.cm.curOp.selectionChanged = true; }); } + + function poll() { + if (input.cm.state.focused) { + input.pollSelection(); + input.polling.set(input.cm.options.pollInterval, poll); + } + } + this.polling.set(this.cm.options.pollInterval, poll); + }; + + ContentEditableInput.prototype.selectionChanged = function () { + var sel = this.getSelection(); + return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset || + sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset + }; + + ContentEditableInput.prototype.pollSelection = function () { + if (this.readDOMTimeout != null || this.gracePeriod || !this.selectionChanged()) { return } + var sel = this.getSelection(), cm = this.cm; + // On Android Chrome (version 56, at least), backspacing into an + // uneditable block element will put the cursor in that element, + // and then, because it's not editable, hide the virtual keyboard. + // Because Android doesn't allow us to actually detect backspace + // presses in a sane way, this code checks for when that happens + // and simulates a backspace press in this case. + if (android && chrome && this.cm.display.gutterSpecs.length && isInGutter(sel.anchorNode)) { + this.cm.triggerOnKeyDown({type: "keydown", keyCode: 8, preventDefault: Math.abs}); + this.blur(); + this.focus(); + return + } + if (this.composing) { return } + this.rememberSelection(); + var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset); + var head = domToPos(cm, sel.focusNode, sel.focusOffset); + if (anchor && head) { runInOp(cm, function () { + setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll); + if (anchor.bad || head.bad) { cm.curOp.selectionChanged = true; } + }); } + }; + + ContentEditableInput.prototype.pollContent = function () { + if (this.readDOMTimeout != null) { + clearTimeout(this.readDOMTimeout); + this.readDOMTimeout = null; + } + + var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary(); + var from = sel.from(), to = sel.to(); + if (from.ch == 0 && from.line > cm.firstLine()) + { from = Pos(from.line - 1, getLine(cm.doc, from.line - 1).length); } + if (to.ch == getLine(cm.doc, to.line).text.length && to.line < cm.lastLine()) + { to = Pos(to.line + 1, 0); } + if (from.line < display.viewFrom || to.line > display.viewTo - 1) { return false } + + var fromIndex, fromLine, fromNode; + if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) { + fromLine = lineNo(display.view[0].line); + fromNode = display.view[0].node; + } else { + fromLine = lineNo(display.view[fromIndex].line); + fromNode = display.view[fromIndex - 1].node.nextSibling; + } + var toIndex = findViewIndex(cm, to.line); + var toLine, toNode; + if (toIndex == display.view.length - 1) { + toLine = display.viewTo - 1; + toNode = display.lineDiv.lastChild; + } else { + toLine = lineNo(display.view[toIndex + 1].line) - 1; + toNode = display.view[toIndex + 1].node.previousSibling; + } + + if (!fromNode) { return false } + var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine)); + var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length)); + while (newText.length > 1 && oldText.length > 1) { + if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; } + else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; } + else { break } + } + + var cutFront = 0, cutEnd = 0; + var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length); + while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront)) + { ++cutFront; } + var newBot = lst(newText), oldBot = lst(oldText); + var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0), + oldBot.length - (oldText.length == 1 ? cutFront : 0)); + while (cutEnd < maxCutEnd && + newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) + { ++cutEnd; } + // Try to move start of change to start of selection if ambiguous + if (newText.length == 1 && oldText.length == 1 && fromLine == from.line) { + while (cutFront && cutFront > from.ch && + newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) { + cutFront--; + cutEnd++; + } + } + + newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd).replace(/^\u200b+/, ""); + newText[0] = newText[0].slice(cutFront).replace(/\u200b+$/, ""); + + var chFrom = Pos(fromLine, cutFront); + var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0); + if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) { + replaceRange(cm.doc, newText, chFrom, chTo, "+input"); + return true + } + }; + + ContentEditableInput.prototype.ensurePolled = function () { + this.forceCompositionEnd(); + }; + ContentEditableInput.prototype.reset = function () { + this.forceCompositionEnd(); + }; + ContentEditableInput.prototype.forceCompositionEnd = function () { + if (!this.composing) { return } + clearTimeout(this.readDOMTimeout); + this.composing = null; + this.updateFromDOM(); + this.div.blur(); + this.div.focus(); + }; + ContentEditableInput.prototype.readFromDOMSoon = function () { + var this$1 = this; + + if (this.readDOMTimeout != null) { return } + this.readDOMTimeout = setTimeout(function () { + this$1.readDOMTimeout = null; + if (this$1.composing) { + if (this$1.composing.done) { this$1.composing = null; } + else { return } + } + this$1.updateFromDOM(); + }, 80); + }; + + ContentEditableInput.prototype.updateFromDOM = function () { + var this$1 = this; + + if (this.cm.isReadOnly() || !this.pollContent()) + { runInOp(this.cm, function () { return regChange(this$1.cm); }); } + }; + + ContentEditableInput.prototype.setUneditable = function (node) { + node.contentEditable = "false"; + }; + + ContentEditableInput.prototype.onKeyPress = function (e) { + if (e.charCode == 0 || this.composing) { return } + e.preventDefault(); + if (!this.cm.isReadOnly()) + { operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0); } + }; + + ContentEditableInput.prototype.readOnlyChanged = function (val) { + this.div.contentEditable = String(val != "nocursor"); + }; + + ContentEditableInput.prototype.onContextMenu = function () {}; + ContentEditableInput.prototype.resetPosition = function () {}; + + ContentEditableInput.prototype.needsContentAttribute = true; + + function posToDOM(cm, pos) { + var view = findViewForLine(cm, pos.line); + if (!view || view.hidden) { return null } + var line = getLine(cm.doc, pos.line); + var info = mapFromLineView(view, line, pos.line); + + var order = getOrder(line, cm.doc.direction), side = "left"; + if (order) { + var partPos = getBidiPartAt(order, pos.ch); + side = partPos % 2 ? "right" : "left"; + } + var result = nodeAndOffsetInLineMap(info.map, pos.ch, side); + result.offset = result.collapse == "right" ? result.end : result.start; + return result + } + + function isInGutter(node) { + for (var scan = node; scan; scan = scan.parentNode) + { if (/CodeMirror-gutter-wrapper/.test(scan.className)) { return true } } + return false + } + + function badPos(pos, bad) { if (bad) { pos.bad = true; } return pos } + + function domTextBetween(cm, from, to, fromLine, toLine) { + var text = "", closing = false, lineSep = cm.doc.lineSeparator(), extraLinebreak = false; + function recognizeMarker(id) { return function (marker) { return marker.id == id; } } + function close() { + if (closing) { + text += lineSep; + if (extraLinebreak) { text += lineSep; } + closing = extraLinebreak = false; + } + } + function addText(str) { + if (str) { + close(); + text += str; + } + } + function walk(node) { + if (node.nodeType == 1) { + var cmText = node.getAttribute("cm-text"); + if (cmText) { + addText(cmText); + return + } + var markerID = node.getAttribute("cm-marker"), range; + if (markerID) { + var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID)); + if (found.length && (range = found[0].find(0))) + { addText(getBetween(cm.doc, range.from, range.to).join(lineSep)); } + return + } + if (node.getAttribute("contenteditable") == "false") { return } + var isBlock = /^(pre|div|p|li|table|br)$/i.test(node.nodeName); + if (!/^br$/i.test(node.nodeName) && node.textContent.length == 0) { return } + + if (isBlock) { close(); } + for (var i = 0; i < node.childNodes.length; i++) + { walk(node.childNodes[i]); } + + if (/^(pre|p)$/i.test(node.nodeName)) { extraLinebreak = true; } + if (isBlock) { closing = true; } + } else if (node.nodeType == 3) { + addText(node.nodeValue.replace(/\u200b/g, "").replace(/\u00a0/g, " ")); + } + } + for (;;) { + walk(from); + if (from == to) { break } + from = from.nextSibling; + extraLinebreak = false; + } + return text + } + + function domToPos(cm, node, offset) { + var lineNode; + if (node == cm.display.lineDiv) { + lineNode = cm.display.lineDiv.childNodes[offset]; + if (!lineNode) { return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true) } + node = null; offset = 0; + } else { + for (lineNode = node;; lineNode = lineNode.parentNode) { + if (!lineNode || lineNode == cm.display.lineDiv) { return null } + if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) { break } + } + } + for (var i = 0; i < cm.display.view.length; i++) { + var lineView = cm.display.view[i]; + if (lineView.node == lineNode) + { return locateNodeInLineView(lineView, node, offset) } + } + } + + function locateNodeInLineView(lineView, node, offset) { + var wrapper = lineView.text.firstChild, bad = false; + if (!node || !contains(wrapper, node)) { return badPos(Pos(lineNo(lineView.line), 0), true) } + if (node == wrapper) { + bad = true; + node = wrapper.childNodes[offset]; + offset = 0; + if (!node) { + var line = lineView.rest ? lst(lineView.rest) : lineView.line; + return badPos(Pos(lineNo(line), line.text.length), bad) + } + } + + var textNode = node.nodeType == 3 ? node : null, topNode = node; + if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) { + textNode = node.firstChild; + if (offset) { offset = textNode.nodeValue.length; } + } + while (topNode.parentNode != wrapper) { topNode = topNode.parentNode; } + var measure = lineView.measure, maps = measure.maps; + + function find(textNode, topNode, offset) { + for (var i = -1; i < (maps ? maps.length : 0); i++) { + var map = i < 0 ? measure.map : maps[i]; + for (var j = 0; j < map.length; j += 3) { + var curNode = map[j + 2]; + if (curNode == textNode || curNode == topNode) { + var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]); + var ch = map[j] + offset; + if (offset < 0 || curNode != textNode) { ch = map[j + (offset ? 1 : 0)]; } + return Pos(line, ch) + } + } + } + } + var found = find(textNode, topNode, offset); + if (found) { return badPos(found, bad) } + + // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems + for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) { + found = find(after, after.firstChild, 0); + if (found) + { return badPos(Pos(found.line, found.ch - dist), bad) } + else + { dist += after.textContent.length; } + } + for (var before = topNode.previousSibling, dist$1 = offset; before; before = before.previousSibling) { + found = find(before, before.firstChild, -1); + if (found) + { return badPos(Pos(found.line, found.ch + dist$1), bad) } + else + { dist$1 += before.textContent.length; } + } + } + + // TEXTAREA INPUT STYLE + + var TextareaInput = function(cm) { + this.cm = cm; + // See input.poll and input.reset + this.prevInput = ""; + + // Flag that indicates whether we expect input to appear real soon + // now (after some event like 'keypress' or 'input') and are + // polling intensively. + this.pollingFast = false; + // Self-resetting timeout for the poller + this.polling = new Delayed(); + // Used to work around IE issue with selection being forgotten when focus moves away from textarea + this.hasSelection = false; + this.composing = null; + }; + + TextareaInput.prototype.init = function (display) { + var this$1 = this; + + var input = this, cm = this.cm; + this.createField(display); + var te = this.textarea; + + display.wrapper.insertBefore(this.wrapper, display.wrapper.firstChild); + + // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore) + if (ios) { te.style.width = "0px"; } + + on(te, "input", function () { + if (ie && ie_version >= 9 && this$1.hasSelection) { this$1.hasSelection = null; } + input.poll(); + }); + + on(te, "paste", function (e) { + if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return } + + cm.state.pasteIncoming = +new Date; + input.fastPoll(); + }); + + function prepareCopyCut(e) { + if (signalDOMEvent(cm, e)) { return } + if (cm.somethingSelected()) { + setLastCopied({lineWise: false, text: cm.getSelections()}); + } else if (!cm.options.lineWiseCopyCut) { + return + } else { + var ranges = copyableRanges(cm); + setLastCopied({lineWise: true, text: ranges.text}); + if (e.type == "cut") { + cm.setSelections(ranges.ranges, null, sel_dontScroll); + } else { + input.prevInput = ""; + te.value = ranges.text.join("\n"); + selectInput(te); + } + } + if (e.type == "cut") { cm.state.cutIncoming = +new Date; } + } + on(te, "cut", prepareCopyCut); + on(te, "copy", prepareCopyCut); + + on(display.scroller, "paste", function (e) { + if (eventInWidget(display, e) || signalDOMEvent(cm, e)) { return } + if (!te.dispatchEvent) { + cm.state.pasteIncoming = +new Date; + input.focus(); + return + } + + // Pass the `paste` event to the textarea so it's handled by its event listener. + var event = new Event("paste"); + event.clipboardData = e.clipboardData; + te.dispatchEvent(event); + }); + + // Prevent normal selection in the editor (we handle our own) + on(display.lineSpace, "selectstart", function (e) { + if (!eventInWidget(display, e)) { e_preventDefault(e); } + }); + + on(te, "compositionstart", function () { + var start = cm.getCursor("from"); + if (input.composing) { input.composing.range.clear(); } + input.composing = { + start: start, + range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"}) + }; + }); + on(te, "compositionend", function () { + if (input.composing) { + input.poll(); + input.composing.range.clear(); + input.composing = null; + } + }); + }; + + TextareaInput.prototype.createField = function (_display) { + // Wraps and hides input textarea + this.wrapper = hiddenTextarea(); + // The semihidden textarea that is focused when the editor is + // focused, and receives input. + this.textarea = this.wrapper.firstChild; + }; + + TextareaInput.prototype.screenReaderLabelChanged = function (label) { + // Label for screenreaders, accessibility + if(label) { + this.textarea.setAttribute('aria-label', label); + } else { + this.textarea.removeAttribute('aria-label'); + } + }; + + TextareaInput.prototype.prepareSelection = function () { + // Redraw the selection and/or cursor + var cm = this.cm, display = cm.display, doc = cm.doc; + var result = prepareSelection(cm); + + // Move the hidden textarea near the cursor to prevent scrolling artifacts + if (cm.options.moveInputWithCursor) { + var headPos = cursorCoords(cm, doc.sel.primary().head, "div"); + var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect(); + result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10, + headPos.top + lineOff.top - wrapOff.top)); + result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10, + headPos.left + lineOff.left - wrapOff.left)); + } + + return result + }; + + TextareaInput.prototype.showSelection = function (drawn) { + var cm = this.cm, display = cm.display; + removeChildrenAndAdd(display.cursorDiv, drawn.cursors); + removeChildrenAndAdd(display.selectionDiv, drawn.selection); + if (drawn.teTop != null) { + this.wrapper.style.top = drawn.teTop + "px"; + this.wrapper.style.left = drawn.teLeft + "px"; + } + }; + + // Reset the input to correspond to the selection (or to be empty, + // when not typing and nothing is selected) + TextareaInput.prototype.reset = function (typing) { + if (this.contextMenuPending || this.composing) { return } + var cm = this.cm; + if (cm.somethingSelected()) { + this.prevInput = ""; + var content = cm.getSelection(); + this.textarea.value = content; + if (cm.state.focused) { selectInput(this.textarea); } + if (ie && ie_version >= 9) { this.hasSelection = content; } + } else if (!typing) { + this.prevInput = this.textarea.value = ""; + if (ie && ie_version >= 9) { this.hasSelection = null; } + } + }; + + TextareaInput.prototype.getField = function () { return this.textarea }; + + TextareaInput.prototype.supportsTouch = function () { return false }; + + TextareaInput.prototype.focus = function () { + if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt() != this.textarea)) { + try { this.textarea.focus(); } + catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM + } + }; + + TextareaInput.prototype.blur = function () { this.textarea.blur(); }; + + TextareaInput.prototype.resetPosition = function () { + this.wrapper.style.top = this.wrapper.style.left = 0; + }; + + TextareaInput.prototype.receivedFocus = function () { this.slowPoll(); }; + + // Poll for input changes, using the normal rate of polling. This + // runs as long as the editor is focused. + TextareaInput.prototype.slowPoll = function () { + var this$1 = this; + + if (this.pollingFast) { return } + this.polling.set(this.cm.options.pollInterval, function () { + this$1.poll(); + if (this$1.cm.state.focused) { this$1.slowPoll(); } + }); + }; + + // When an event has just come in that is likely to add or change + // something in the input textarea, we poll faster, to ensure that + // the change appears on the screen quickly. + TextareaInput.prototype.fastPoll = function () { + var missed = false, input = this; + input.pollingFast = true; + function p() { + var changed = input.poll(); + if (!changed && !missed) {missed = true; input.polling.set(60, p);} + else {input.pollingFast = false; input.slowPoll();} + } + input.polling.set(20, p); + }; + + // Read input from the textarea, and update the document to match. + // When something is selected, it is present in the textarea, and + // selected (unless it is huge, in which case a placeholder is + // used). When nothing is selected, the cursor sits after previously + // seen text (can be empty), which is stored in prevInput (we must + // not reset the textarea when typing, because that breaks IME). + TextareaInput.prototype.poll = function () { + var this$1 = this; + + var cm = this.cm, input = this.textarea, prevInput = this.prevInput; + // Since this is called a *lot*, try to bail out as cheaply as + // possible when it is clear that nothing happened. hasSelection + // will be the case when there is a lot of text in the textarea, + // in which case reading its value would be expensive. + if (this.contextMenuPending || !cm.state.focused || + (hasSelection(input) && !prevInput && !this.composing) || + cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq) + { return false } + + var text = input.value; + // If nothing changed, bail. + if (text == prevInput && !cm.somethingSelected()) { return false } + // Work around nonsensical selection resetting in IE9/10, and + // inexplicable appearance of private area unicode characters on + // some key combos in Mac (#2689). + if (ie && ie_version >= 9 && this.hasSelection === text || + mac && /[\uf700-\uf7ff]/.test(text)) { + cm.display.input.reset(); + return false + } + + if (cm.doc.sel == cm.display.selForContextMenu) { + var first = text.charCodeAt(0); + if (first == 0x200b && !prevInput) { prevInput = "\u200b"; } + if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo") } + } + // Find the part of the input that is actually new + var same = 0, l = Math.min(prevInput.length, text.length); + while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) { ++same; } + + runInOp(cm, function () { + applyTextInput(cm, text.slice(same), prevInput.length - same, + null, this$1.composing ? "*compose" : null); + + // Don't leave long text in the textarea, since it makes further polling slow + if (text.length > 1000 || text.indexOf("\n") > -1) { input.value = this$1.prevInput = ""; } + else { this$1.prevInput = text; } + + if (this$1.composing) { + this$1.composing.range.clear(); + this$1.composing.range = cm.markText(this$1.composing.start, cm.getCursor("to"), + {className: "CodeMirror-composing"}); + } + }); + return true + }; + + TextareaInput.prototype.ensurePolled = function () { + if (this.pollingFast && this.poll()) { this.pollingFast = false; } + }; + + TextareaInput.prototype.onKeyPress = function () { + if (ie && ie_version >= 9) { this.hasSelection = null; } + this.fastPoll(); + }; + + TextareaInput.prototype.onContextMenu = function (e) { + var input = this, cm = input.cm, display = cm.display, te = input.textarea; + if (input.contextMenuPending) { input.contextMenuPending(); } + var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop; + if (!pos || presto) { return } // Opera is difficult. + + // Reset the current text selection only if the click is done outside of the selection + // and 'resetSelectionOnContextMenu' option is true. + var reset = cm.options.resetSelectionOnContextMenu; + if (reset && cm.doc.sel.contains(pos) == -1) + { operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll); } + + var oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText; + var wrapperBox = input.wrapper.offsetParent.getBoundingClientRect(); + input.wrapper.style.cssText = "position: static"; + te.style.cssText = "position: absolute; width: 30px; height: 30px;\n top: " + (e.clientY - wrapperBox.top - 5) + "px; left: " + (e.clientX - wrapperBox.left - 5) + "px;\n z-index: 1000; background: " + (ie ? "rgba(255, 255, 255, .05)" : "transparent") + ";\n outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);"; + var oldScrollY; + if (webkit) { oldScrollY = window.scrollY; } // Work around Chrome issue (#2712) + display.input.focus(); + if (webkit) { window.scrollTo(null, oldScrollY); } + display.input.reset(); + // Adds "Select all" to context menu in FF + if (!cm.somethingSelected()) { te.value = input.prevInput = " "; } + input.contextMenuPending = rehide; + display.selForContextMenu = cm.doc.sel; + clearTimeout(display.detectingSelectAll); + + // Select-all will be greyed out if there's nothing to select, so + // this adds a zero-width space so that we can later check whether + // it got selected. + function prepareSelectAllHack() { + if (te.selectionStart != null) { + var selected = cm.somethingSelected(); + var extval = "\u200b" + (selected ? te.value : ""); + te.value = "\u21da"; // Used to catch context-menu undo + te.value = extval; + input.prevInput = selected ? "" : "\u200b"; + te.selectionStart = 1; te.selectionEnd = extval.length; + // Re-set this, in case some other handler touched the + // selection in the meantime. + display.selForContextMenu = cm.doc.sel; + } + } + function rehide() { + if (input.contextMenuPending != rehide) { return } + input.contextMenuPending = false; + input.wrapper.style.cssText = oldWrapperCSS; + te.style.cssText = oldCSS; + if (ie && ie_version < 9) { display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos); } + + // Try to detect the user choosing select-all + if (te.selectionStart != null) { + if (!ie || (ie && ie_version < 9)) { prepareSelectAllHack(); } + var i = 0, poll = function () { + if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 && + te.selectionEnd > 0 && input.prevInput == "\u200b") { + operation(cm, selectAll)(cm); + } else if (i++ < 10) { + display.detectingSelectAll = setTimeout(poll, 500); + } else { + display.selForContextMenu = null; + display.input.reset(); + } + }; + display.detectingSelectAll = setTimeout(poll, 200); + } + } + + if (ie && ie_version >= 9) { prepareSelectAllHack(); } + if (captureRightClick) { + e_stop(e); + var mouseup = function () { + off(window, "mouseup", mouseup); + setTimeout(rehide, 20); + }; + on(window, "mouseup", mouseup); + } else { + setTimeout(rehide, 50); + } + }; + + TextareaInput.prototype.readOnlyChanged = function (val) { + if (!val) { this.reset(); } + this.textarea.disabled = val == "nocursor"; + this.textarea.readOnly = !!val; + }; + + TextareaInput.prototype.setUneditable = function () {}; + + TextareaInput.prototype.needsContentAttribute = false; + + function fromTextArea(textarea, options) { + options = options ? copyObj(options) : {}; + options.value = textarea.value; + if (!options.tabindex && textarea.tabIndex) + { options.tabindex = textarea.tabIndex; } + if (!options.placeholder && textarea.placeholder) + { options.placeholder = textarea.placeholder; } + // Set autofocus to true if this textarea is focused, or if it has + // autofocus and no other element is focused. + if (options.autofocus == null) { + var hasFocus = activeElt(); + options.autofocus = hasFocus == textarea || + textarea.getAttribute("autofocus") != null && hasFocus == document.body; + } + + function save() {textarea.value = cm.getValue();} + + var realSubmit; + if (textarea.form) { + on(textarea.form, "submit", save); + // Deplorable hack to make the submit method do the right thing. + if (!options.leaveSubmitMethodAlone) { + var form = textarea.form; + realSubmit = form.submit; + try { + var wrappedSubmit = form.submit = function () { + save(); + form.submit = realSubmit; + form.submit(); + form.submit = wrappedSubmit; + }; + } catch(e) {} + } + } + + options.finishInit = function (cm) { + cm.save = save; + cm.getTextArea = function () { return textarea; }; + cm.toTextArea = function () { + cm.toTextArea = isNaN; // Prevent this from being ran twice + save(); + textarea.parentNode.removeChild(cm.getWrapperElement()); + textarea.style.display = ""; + if (textarea.form) { + off(textarea.form, "submit", save); + if (!options.leaveSubmitMethodAlone && typeof textarea.form.submit == "function") + { textarea.form.submit = realSubmit; } + } + }; + }; + + textarea.style.display = "none"; + var cm = CodeMirror(function (node) { return textarea.parentNode.insertBefore(node, textarea.nextSibling); }, + options); + return cm + } + + function addLegacyProps(CodeMirror) { + CodeMirror.off = off; + CodeMirror.on = on; + CodeMirror.wheelEventPixels = wheelEventPixels; + CodeMirror.Doc = Doc; + CodeMirror.splitLines = splitLinesAuto; + CodeMirror.countColumn = countColumn; + CodeMirror.findColumn = findColumn; + CodeMirror.isWordChar = isWordCharBasic; + CodeMirror.Pass = Pass; + CodeMirror.signal = signal; + CodeMirror.Line = Line; + CodeMirror.changeEnd = changeEnd; + CodeMirror.scrollbarModel = scrollbarModel; + CodeMirror.Pos = Pos; + CodeMirror.cmpPos = cmp; + CodeMirror.modes = modes; + CodeMirror.mimeModes = mimeModes; + CodeMirror.resolveMode = resolveMode; + CodeMirror.getMode = getMode; + CodeMirror.modeExtensions = modeExtensions; + CodeMirror.extendMode = extendMode; + CodeMirror.copyState = copyState; + CodeMirror.startState = startState; + CodeMirror.innerMode = innerMode; + CodeMirror.commands = commands; + CodeMirror.keyMap = keyMap; + CodeMirror.keyName = keyName; + CodeMirror.isModifierKey = isModifierKey; + CodeMirror.lookupKey = lookupKey; + CodeMirror.normalizeKeyMap = normalizeKeyMap; + CodeMirror.StringStream = StringStream; + CodeMirror.SharedTextMarker = SharedTextMarker; + CodeMirror.TextMarker = TextMarker; + CodeMirror.LineWidget = LineWidget; + CodeMirror.e_preventDefault = e_preventDefault; + CodeMirror.e_stopPropagation = e_stopPropagation; + CodeMirror.e_stop = e_stop; + CodeMirror.addClass = addClass; + CodeMirror.contains = contains; + CodeMirror.rmClass = rmClass; + CodeMirror.keyNames = keyNames; + } + + // EDITOR CONSTRUCTOR + + defineOptions(CodeMirror); + + addEditorMethods(CodeMirror); + + // Set up methods on CodeMirror's prototype to redirect to the editor's document. + var dontDelegate = "iter insert remove copy getEditor constructor".split(" "); + for (var prop in Doc.prototype) { if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0) + { CodeMirror.prototype[prop] = (function(method) { + return function() {return method.apply(this.doc, arguments)} + })(Doc.prototype[prop]); } } + + eventMixin(Doc); + CodeMirror.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput}; + + // Extra arguments are stored as the mode's dependencies, which is + // used by (legacy) mechanisms like loadmode.js to automatically + // load a mode. (Preferred mechanism is the require/define calls.) + CodeMirror.defineMode = function(name/*, mode, …*/) { + if (!CodeMirror.defaults.mode && name != "null") { CodeMirror.defaults.mode = name; } + defineMode.apply(this, arguments); + }; + + CodeMirror.defineMIME = defineMIME; + + // Minimal default mode. + CodeMirror.defineMode("null", function () { return ({token: function (stream) { return stream.skipToEnd(); }}); }); + CodeMirror.defineMIME("text/plain", "null"); + + // EXTENSIONS + + CodeMirror.defineExtension = function (name, func) { + CodeMirror.prototype[name] = func; + }; + CodeMirror.defineDocExtension = function (name, func) { + Doc.prototype[name] = func; + }; + + CodeMirror.fromTextArea = fromTextArea; + + addLegacyProps(CodeMirror); + + CodeMirror.version = "5.59.2"; + + return CodeMirror; + +}))); diff --git a/src/lib/codemirror/mode/css/css.js b/src/lib/codemirror/mode/css/css.js new file mode 100644 index 0000000..88a869b --- /dev/null +++ b/src/lib/codemirror/mode/css/css.js @@ -0,0 +1,864 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: https://codemirror.net/LICENSE + +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../../lib/codemirror")); + else if (typeof define == "function" && define.amd) // AMD + define(["../../lib/codemirror"], mod); + else // Plain browser env + mod(CodeMirror); +})(function(CodeMirror) { +"use strict"; + +CodeMirror.defineMode("css", function(config, parserConfig) { + var inline = parserConfig.inline + if (!parserConfig.propertyKeywords) parserConfig = CodeMirror.resolveMode("text/css"); + + var indentUnit = config.indentUnit, + tokenHooks = parserConfig.tokenHooks, + documentTypes = parserConfig.documentTypes || {}, + mediaTypes = parserConfig.mediaTypes || {}, + mediaFeatures = parserConfig.mediaFeatures || {}, + mediaValueKeywords = parserConfig.mediaValueKeywords || {}, + propertyKeywords = parserConfig.propertyKeywords || {}, + nonStandardPropertyKeywords = parserConfig.nonStandardPropertyKeywords || {}, + fontProperties = parserConfig.fontProperties || {}, + counterDescriptors = parserConfig.counterDescriptors || {}, + colorKeywords = parserConfig.colorKeywords || {}, + valueKeywords = parserConfig.valueKeywords || {}, + allowNested = parserConfig.allowNested, + lineComment = parserConfig.lineComment, + supportsAtComponent = parserConfig.supportsAtComponent === true, + highlightNonStandardPropertyKeywords = config.highlightNonStandardPropertyKeywords !== false; + + var type, override; + function ret(style, tp) { type = tp; return style; } + + // Tokenizers + + function tokenBase(stream, state) { + var ch = stream.next(); + if (tokenHooks[ch]) { + var result = tokenHooks[ch](stream, state); + if (result !== false) return result; + } + if (ch == "@") { + stream.eatWhile(/[\w\\\-]/); + return ret("def", stream.current()); + } else if (ch == "=" || (ch == "~" || ch == "|") && stream.eat("=")) { + return ret(null, "compare"); + } else if (ch == "\"" || ch == "'") { + state.tokenize = tokenString(ch); + return state.tokenize(stream, state); + } else if (ch == "#") { + stream.eatWhile(/[\w\\\-]/); + return ret("atom", "hash"); + } else if (ch == "!") { + stream.match(/^\s*\w*/); + return ret("keyword", "important"); + } else if (/\d/.test(ch) || ch == "." && stream.eat(/\d/)) { + stream.eatWhile(/[\w.%]/); + return ret("number", "unit"); + } else if (ch === "-") { + if (/[\d.]/.test(stream.peek())) { + stream.eatWhile(/[\w.%]/); + return ret("number", "unit"); + } else if (stream.match(/^-[\w\\\-]*/)) { + stream.eatWhile(/[\w\\\-]/); + if (stream.match(/^\s*:/, false)) + return ret("variable-2", "variable-definition"); + return ret("variable-2", "variable"); + } else if (stream.match(/^\w+-/)) { + return ret("meta", "meta"); + } + } else if (/[,+>*\/]/.test(ch)) { + return ret(null, "select-op"); + } else if (ch == "." && stream.match(/^-?[_a-z][_a-z0-9-]*/i)) { + return ret("qualifier", "qualifier"); + } else if (/[:;{}\[\]\(\)]/.test(ch)) { + return ret(null, ch); + } else if (stream.match(/^[\w-.]+(?=\()/)) { + if (/^(url(-prefix)?|domain|regexp)$/i.test(stream.current())) { + state.tokenize = tokenParenthesized; + } + return ret("variable callee", "variable"); + } else if (/[\w\\\-]/.test(ch)) { + stream.eatWhile(/[\w\\\-]/); + return ret("property", "word"); + } else { + return ret(null, null); + } + } + + function tokenString(quote) { + return function(stream, state) { + var escaped = false, ch; + while ((ch = stream.next()) != null) { + if (ch == quote && !escaped) { + if (quote == ")") stream.backUp(1); + break; + } + escaped = !escaped && ch == "\\"; + } + if (ch == quote || !escaped && quote != ")") state.tokenize = null; + return ret("string", "string"); + }; + } + + function tokenParenthesized(stream, state) { + stream.next(); // Must be '(' + if (!stream.match(/^\s*[\"\')]/, false)) + state.tokenize = tokenString(")"); + else + state.tokenize = null; + return ret(null, "("); + } + + // Context management + + function Context(type, indent, prev) { + this.type = type; + this.indent = indent; + this.prev = prev; + } + + function pushContext(state, stream, type, indent) { + state.context = new Context(type, stream.indentation() + (indent === false ? 0 : indentUnit), state.context); + return type; + } + + function popContext(state) { + if (state.context.prev) + state.context = state.context.prev; + return state.context.type; + } + + function pass(type, stream, state) { + return states[state.context.type](type, stream, state); + } + function popAndPass(type, stream, state, n) { + for (var i = n || 1; i > 0; i--) + state.context = state.context.prev; + return pass(type, stream, state); + } + + // Parser + + function wordAsValue(stream) { + var word = stream.current().toLowerCase(); + if (valueKeywords.hasOwnProperty(word)) + override = "atom"; + else if (colorKeywords.hasOwnProperty(word)) + override = "keyword"; + else + override = "variable"; + } + + var states = {}; + + states.top = function(type, stream, state) { + if (type == "{") { + return pushContext(state, stream, "block"); + } else if (type == "}" && state.context.prev) { + return popContext(state); + } else if (supportsAtComponent && /@component/i.test(type)) { + return pushContext(state, stream, "atComponentBlock"); + } else if (/^@(-moz-)?document$/i.test(type)) { + return pushContext(state, stream, "documentTypes"); + } else if (/^@(media|supports|(-moz-)?document|import)$/i.test(type)) { + return pushContext(state, stream, "atBlock"); + } else if (/^@(font-face|counter-style)/i.test(type)) { + state.stateArg = type; + return "restricted_atBlock_before"; + } else if (/^@(-(moz|ms|o|webkit)-)?keyframes$/i.test(type)) { + return "keyframes"; + } else if (type && type.charAt(0) == "@") { + return pushContext(state, stream, "at"); + } else if (type == "hash") { + override = "builtin"; + } else if (type == "word") { + override = "tag"; + } else if (type == "variable-definition") { + return "maybeprop"; + } else if (type == "interpolation") { + return pushContext(state, stream, "interpolation"); + } else if (type == ":") { + return "pseudo"; + } else if (allowNested && type == "(") { + return pushContext(state, stream, "parens"); + } + return state.context.type; + }; + + states.block = function(type, stream, state) { + if (type == "word") { + var word = stream.current().toLowerCase(); + if (propertyKeywords.hasOwnProperty(word)) { + override = "property"; + return "maybeprop"; + } else if (nonStandardPropertyKeywords.hasOwnProperty(word)) { + override = highlightNonStandardPropertyKeywords ? "string-2" : "property"; + return "maybeprop"; + } else if (allowNested) { + override = stream.match(/^\s*:(?:\s|$)/, false) ? "property" : "tag"; + return "block"; + } else { + override += " error"; + return "maybeprop"; + } + } else if (type == "meta") { + return "block"; + } else if (!allowNested && (type == "hash" || type == "qualifier")) { + override = "error"; + return "block"; + } else { + return states.top(type, stream, state); + } + }; + + states.maybeprop = function(type, stream, state) { + if (type == ":") return pushContext(state, stream, "prop"); + return pass(type, stream, state); + }; + + states.prop = function(type, stream, state) { + if (type == ";") return popContext(state); + if (type == "{" && allowNested) return pushContext(state, stream, "propBlock"); + if (type == "}" || type == "{") return popAndPass(type, stream, state); + if (type == "(") return pushContext(state, stream, "parens"); + + if (type == "hash" && !/^#([0-9a-fA-f]{3,4}|[0-9a-fA-f]{6}|[0-9a-fA-f]{8})$/.test(stream.current())) { + override += " error"; + } else if (type == "word") { + wordAsValue(stream); + } else if (type == "interpolation") { + return pushContext(state, stream, "interpolation"); + } + return "prop"; + }; + + states.propBlock = function(type, _stream, state) { + if (type == "}") return popContext(state); + if (type == "word") { override = "property"; return "maybeprop"; } + return state.context.type; + }; + + states.parens = function(type, stream, state) { + if (type == "{" || type == "}") return popAndPass(type, stream, state); + if (type == ")") return popContext(state); + if (type == "(") return pushContext(state, stream, "parens"); + if (type == "interpolation") return pushContext(state, stream, "interpolation"); + if (type == "word") wordAsValue(stream); + return "parens"; + }; + + states.pseudo = function(type, stream, state) { + if (type == "meta") return "pseudo"; + + if (type == "word") { + override = "variable-3"; + return state.context.type; + } + return pass(type, stream, state); + }; + + states.documentTypes = function(type, stream, state) { + if (type == "word" && documentTypes.hasOwnProperty(stream.current())) { + override = "tag"; + return state.context.type; + } else { + return states.atBlock(type, stream, state); + } + }; + + states.atBlock = function(type, stream, state) { + if (type == "(") return pushContext(state, stream, "atBlock_parens"); + if (type == "}" || type == ";") return popAndPass(type, stream, state); + if (type == "{") return popContext(state) && pushContext(state, stream, allowNested ? "block" : "top"); + + if (type == "interpolation") return pushContext(state, stream, "interpolation"); + + if (type == "word") { + var word = stream.current().toLowerCase(); + if (word == "only" || word == "not" || word == "and" || word == "or") + override = "keyword"; + else if (mediaTypes.hasOwnProperty(word)) + override = "attribute"; + else if (mediaFeatures.hasOwnProperty(word)) + override = "property"; + else if (mediaValueKeywords.hasOwnProperty(word)) + override = "keyword"; + else if (propertyKeywords.hasOwnProperty(word)) + override = "property"; + else if (nonStandardPropertyKeywords.hasOwnProperty(word)) + override = highlightNonStandardPropertyKeywords ? "string-2" : "property"; + else if (valueKeywords.hasOwnProperty(word)) + override = "atom"; + else if (colorKeywords.hasOwnProperty(word)) + override = "keyword"; + else + override = "error"; + } + return state.context.type; + }; + + states.atComponentBlock = function(type, stream, state) { + if (type == "}") + return popAndPass(type, stream, state); + if (type == "{") + return popContext(state) && pushContext(state, stream, allowNested ? "block" : "top", false); + if (type == "word") + override = "error"; + return state.context.type; + }; + + states.atBlock_parens = function(type, stream, state) { + if (type == ")") return popContext(state); + if (type == "{" || type == "}") return popAndPass(type, stream, state, 2); + return states.atBlock(type, stream, state); + }; + + states.restricted_atBlock_before = function(type, stream, state) { + if (type == "{") + return pushContext(state, stream, "restricted_atBlock"); + if (type == "word" && state.stateArg == "@counter-style") { + override = "variable"; + return "restricted_atBlock_before"; + } + return pass(type, stream, state); + }; + + states.restricted_atBlock = function(type, stream, state) { + if (type == "}") { + state.stateArg = null; + return popContext(state); + } + if (type == "word") { + if ((state.stateArg == "@font-face" && !fontProperties.hasOwnProperty(stream.current().toLowerCase())) || + (state.stateArg == "@counter-style" && !counterDescriptors.hasOwnProperty(stream.current().toLowerCase()))) + override = "error"; + else + override = "property"; + return "maybeprop"; + } + return "restricted_atBlock"; + }; + + states.keyframes = function(type, stream, state) { + if (type == "word") { override = "variable"; return "keyframes"; } + if (type == "{") return pushContext(state, stream, "top"); + return pass(type, stream, state); + }; + + states.at = function(type, stream, state) { + if (type == ";") return popContext(state); + if (type == "{" || type == "}") return popAndPass(type, stream, state); + if (type == "word") override = "tag"; + else if (type == "hash") override = "builtin"; + return "at"; + }; + + states.interpolation = function(type, stream, state) { + if (type == "}") return popContext(state); + if (type == "{" || type == ";") return popAndPass(type, stream, state); + if (type == "word") override = "variable"; + else if (type != "variable" && type != "(" && type != ")") override = "error"; + return "interpolation"; + }; + + return { + startState: function(base) { + return {tokenize: null, + state: inline ? "block" : "top", + stateArg: null, + context: new Context(inline ? "block" : "top", base || 0, null)}; + }, + + token: function(stream, state) { + if (!state.tokenize && stream.eatSpace()) return null; + var style = (state.tokenize || tokenBase)(stream, state); + if (style && typeof style == "object") { + type = style[1]; + style = style[0]; + } + override = style; + if (type != "comment") + state.state = states[state.state](type, stream, state); + return override; + }, + + indent: function(state, textAfter) { + var cx = state.context, ch = textAfter && textAfter.charAt(0); + var indent = cx.indent; + if (cx.type == "prop" && (ch == "}" || ch == ")")) cx = cx.prev; + if (cx.prev) { + if (ch == "}" && (cx.type == "block" || cx.type == "top" || + cx.type == "interpolation" || cx.type == "restricted_atBlock")) { + // Resume indentation from parent context. + cx = cx.prev; + indent = cx.indent; + } else if (ch == ")" && (cx.type == "parens" || cx.type == "atBlock_parens") || + ch == "{" && (cx.type == "at" || cx.type == "atBlock")) { + // Dedent relative to current context. + indent = Math.max(0, cx.indent - indentUnit); + } + } + return indent; + }, + + electricChars: "}", + blockCommentStart: "/*", + blockCommentEnd: "*/", + blockCommentContinue: " * ", + lineComment: lineComment, + fold: "brace" + }; +}); + + function keySet(array) { + var keys = {}; + for (var i = 0; i < array.length; ++i) { + keys[array[i].toLowerCase()] = true; + } + return keys; + } + + var documentTypes_ = [ + "domain", "regexp", "url", "url-prefix" + ], documentTypes = keySet(documentTypes_); + + var mediaTypes_ = [ + "all", "aural", "braille", "handheld", "print", "projection", "screen", + "tty", "tv", "embossed" + ], mediaTypes = keySet(mediaTypes_); + + var mediaFeatures_ = [ + "width", "min-width", "max-width", "height", "min-height", "max-height", + "device-width", "min-device-width", "max-device-width", "device-height", + "min-device-height", "max-device-height", "aspect-ratio", + "min-aspect-ratio", "max-aspect-ratio", "device-aspect-ratio", + "min-device-aspect-ratio", "max-device-aspect-ratio", "color", "min-color", + "max-color", "color-index", "min-color-index", "max-color-index", + "monochrome", "min-monochrome", "max-monochrome", "resolution", + "min-resolution", "max-resolution", "scan", "grid", "orientation", + "device-pixel-ratio", "min-device-pixel-ratio", "max-device-pixel-ratio", + "pointer", "any-pointer", "hover", "any-hover", "prefers-color-scheme" + ], mediaFeatures = keySet(mediaFeatures_); + + var mediaValueKeywords_ = [ + "landscape", "portrait", "none", "coarse", "fine", "on-demand", "hover", + "interlace", "progressive", + "dark", "light" + ], mediaValueKeywords = keySet(mediaValueKeywords_); + + var propertyKeywords_ = [ + "align-content", "align-items", "align-self", "alignment-adjust", + "alignment-baseline", "all", "anchor-point", "animation", "animation-delay", + "animation-direction", "animation-duration", "animation-fill-mode", + "animation-iteration-count", "animation-name", "animation-play-state", + "animation-timing-function", "appearance", "azimuth", "backdrop-filter", + "backface-visibility", "background", "background-attachment", + "background-blend-mode", "background-clip", "background-color", + "background-image", "background-origin", "background-position", + "background-position-x", "background-position-y", "background-repeat", + "background-size", "baseline-shift", "binding", "bleed", "block-size", + "bookmark-label", "bookmark-level", "bookmark-state", "bookmark-target", + "border", "border-bottom", "border-bottom-color", "border-bottom-left-radius", + "border-bottom-right-radius", "border-bottom-style", "border-bottom-width", + "border-collapse", "border-color", "border-image", "border-image-outset", + "border-image-repeat", "border-image-slice", "border-image-source", + "border-image-width", "border-left", "border-left-color", "border-left-style", + "border-left-width", "border-radius", "border-right", "border-right-color", + "border-right-style", "border-right-width", "border-spacing", "border-style", + "border-top", "border-top-color", "border-top-left-radius", + "border-top-right-radius", "border-top-style", "border-top-width", + "border-width", "bottom", "box-decoration-break", "box-shadow", "box-sizing", + "break-after", "break-before", "break-inside", "caption-side", "caret-color", + "clear", "clip", "color", "color-profile", "column-count", "column-fill", + "column-gap", "column-rule", "column-rule-color", "column-rule-style", + "column-rule-width", "column-span", "column-width", "columns", "contain", + "content", "counter-increment", "counter-reset", "crop", "cue", "cue-after", + "cue-before", "cursor", "direction", "display", "dominant-baseline", + "drop-initial-after-adjust", "drop-initial-after-align", + "drop-initial-before-adjust", "drop-initial-before-align", "drop-initial-size", + "drop-initial-value", "elevation", "empty-cells", "fit", "fit-position", + "flex", "flex-basis", "flex-direction", "flex-flow", "flex-grow", + "flex-shrink", "flex-wrap", "float", "float-offset", "flow-from", "flow-into", + "font", "font-family", "font-feature-settings", "font-kerning", + "font-language-override", "font-optical-sizing", "font-size", + "font-size-adjust", "font-stretch", "font-style", "font-synthesis", + "font-variant", "font-variant-alternates", "font-variant-caps", + "font-variant-east-asian", "font-variant-ligatures", "font-variant-numeric", + "font-variant-position", "font-variation-settings", "font-weight", "gap", + "grid", "grid-area", "grid-auto-columns", "grid-auto-flow", "grid-auto-rows", + "grid-column", "grid-column-end", "grid-column-gap", "grid-column-start", + "grid-gap", "grid-row", "grid-row-end", "grid-row-gap", "grid-row-start", + "grid-template", "grid-template-areas", "grid-template-columns", + "grid-template-rows", "hanging-punctuation", "height", "hyphens", "icon", + "image-orientation", "image-rendering", "image-resolution", "inline-box-align", + "inset", "inset-block", "inset-block-end", "inset-block-start", "inset-inline", + "inset-inline-end", "inset-inline-start", "isolation", "justify-content", + "justify-items", "justify-self", "left", "letter-spacing", "line-break", + "line-height", "line-height-step", "line-stacking", "line-stacking-ruby", + "line-stacking-shift", "line-stacking-strategy", "list-style", + "list-style-image", "list-style-position", "list-style-type", "margin", + "margin-bottom", "margin-left", "margin-right", "margin-top", "marks", + "marquee-direction", "marquee-loop", "marquee-play-count", "marquee-speed", + "marquee-style", "mask-clip", "mask-composite", "mask-image", "mask-mode", + "mask-origin", "mask-position", "mask-repeat", "mask-size","mask-type", + "max-block-size", "max-height", "max-inline-size", + "max-width", "min-block-size", "min-height", "min-inline-size", "min-width", + "mix-blend-mode", "move-to", "nav-down", "nav-index", "nav-left", "nav-right", + "nav-up", "object-fit", "object-position", "offset", "offset-anchor", + "offset-distance", "offset-path", "offset-position", "offset-rotate", + "opacity", "order", "orphans", "outline", "outline-color", "outline-offset", + "outline-style", "outline-width", "overflow", "overflow-style", + "overflow-wrap", "overflow-x", "overflow-y", "padding", "padding-bottom", + "padding-left", "padding-right", "padding-top", "page", "page-break-after", + "page-break-before", "page-break-inside", "page-policy", "pause", + "pause-after", "pause-before", "perspective", "perspective-origin", "pitch", + "pitch-range", "place-content", "place-items", "place-self", "play-during", + "position", "presentation-level", "punctuation-trim", "quotes", + "region-break-after", "region-break-before", "region-break-inside", + "region-fragment", "rendering-intent", "resize", "rest", "rest-after", + "rest-before", "richness", "right", "rotate", "rotation", "rotation-point", + "row-gap", "ruby-align", "ruby-overhang", "ruby-position", "ruby-span", + "scale", "scroll-behavior", "scroll-margin", "scroll-margin-block", + "scroll-margin-block-end", "scroll-margin-block-start", "scroll-margin-bottom", + "scroll-margin-inline", "scroll-margin-inline-end", + "scroll-margin-inline-start", "scroll-margin-left", "scroll-margin-right", + "scroll-margin-top", "scroll-padding", "scroll-padding-block", + "scroll-padding-block-end", "scroll-padding-block-start", + "scroll-padding-bottom", "scroll-padding-inline", "scroll-padding-inline-end", + "scroll-padding-inline-start", "scroll-padding-left", "scroll-padding-right", + "scroll-padding-top", "scroll-snap-align", "scroll-snap-type", + "shape-image-threshold", "shape-inside", "shape-margin", "shape-outside", + "size", "speak", "speak-as", "speak-header", "speak-numeral", + "speak-punctuation", "speech-rate", "stress", "string-set", "tab-size", + "table-layout", "target", "target-name", "target-new", "target-position", + "text-align", "text-align-last", "text-combine-upright", "text-decoration", + "text-decoration-color", "text-decoration-line", "text-decoration-skip", + "text-decoration-skip-ink", "text-decoration-style", "text-emphasis", + "text-emphasis-color", "text-emphasis-position", "text-emphasis-style", + "text-height", "text-indent", "text-justify", "text-orientation", + "text-outline", "text-overflow", "text-rendering", "text-shadow", + "text-size-adjust", "text-space-collapse", "text-transform", + "text-underline-position", "text-wrap", "top", "touch-action", "transform", "transform-origin", + "transform-style", "transition", "transition-delay", "transition-duration", + "transition-property", "transition-timing-function", "translate", + "unicode-bidi", "user-select", "vertical-align", "visibility", "voice-balance", + "voice-duration", "voice-family", "voice-pitch", "voice-range", "voice-rate", + "voice-stress", "voice-volume", "volume", "white-space", "widows", "width", + "will-change", "word-break", "word-spacing", "word-wrap", "writing-mode", "z-index", + // SVG-specific + "clip-path", "clip-rule", "mask", "enable-background", "filter", "flood-color", + "flood-opacity", "lighting-color", "stop-color", "stop-opacity", "pointer-events", + "color-interpolation", "color-interpolation-filters", + "color-rendering", "fill", "fill-opacity", "fill-rule", "image-rendering", + "marker", "marker-end", "marker-mid", "marker-start", "paint-order", "shape-rendering", "stroke", + "stroke-dasharray", "stroke-dashoffset", "stroke-linecap", "stroke-linejoin", + "stroke-miterlimit", "stroke-opacity", "stroke-width", "text-rendering", + "baseline-shift", "dominant-baseline", "glyph-orientation-horizontal", + "glyph-orientation-vertical", "text-anchor", "writing-mode", + ], propertyKeywords = keySet(propertyKeywords_); + + var nonStandardPropertyKeywords_ = [ + "border-block", "border-block-color", "border-block-end", + "border-block-end-color", "border-block-end-style", "border-block-end-width", + "border-block-start", "border-block-start-color", "border-block-start-style", + "border-block-start-width", "border-block-style", "border-block-width", + "border-inline", "border-inline-color", "border-inline-end", + "border-inline-end-color", "border-inline-end-style", + "border-inline-end-width", "border-inline-start", "border-inline-start-color", + "border-inline-start-style", "border-inline-start-width", + "border-inline-style", "border-inline-width", "margin-block", + "margin-block-end", "margin-block-start", "margin-inline", "margin-inline-end", + "margin-inline-start", "padding-block", "padding-block-end", + "padding-block-start", "padding-inline", "padding-inline-end", + "padding-inline-start", "scroll-snap-stop", "scrollbar-3d-light-color", + "scrollbar-arrow-color", "scrollbar-base-color", "scrollbar-dark-shadow-color", + "scrollbar-face-color", "scrollbar-highlight-color", "scrollbar-shadow-color", + "scrollbar-track-color", "searchfield-cancel-button", "searchfield-decoration", + "searchfield-results-button", "searchfield-results-decoration", "shape-inside", "zoom" + ], nonStandardPropertyKeywords = keySet(nonStandardPropertyKeywords_); + + var fontProperties_ = [ + "font-display", "font-family", "src", "unicode-range", "font-variant", + "font-feature-settings", "font-stretch", "font-weight", "font-style" + ], fontProperties = keySet(fontProperties_); + + var counterDescriptors_ = [ + "additive-symbols", "fallback", "negative", "pad", "prefix", "range", + "speak-as", "suffix", "symbols", "system" + ], counterDescriptors = keySet(counterDescriptors_); + + var colorKeywords_ = [ + "aliceblue", "antiquewhite", "aqua", "aquamarine", "azure", "beige", + "bisque", "black", "blanchedalmond", "blue", "blueviolet", "brown", + "burlywood", "cadetblue", "chartreuse", "chocolate", "coral", "cornflowerblue", + "cornsilk", "crimson", "cyan", "darkblue", "darkcyan", "darkgoldenrod", + "darkgray", "darkgreen", "darkkhaki", "darkmagenta", "darkolivegreen", + "darkorange", "darkorchid", "darkred", "darksalmon", "darkseagreen", + "darkslateblue", "darkslategray", "darkturquoise", "darkviolet", + "deeppink", "deepskyblue", "dimgray", "dodgerblue", "firebrick", + "floralwhite", "forestgreen", "fuchsia", "gainsboro", "ghostwhite", + "gold", "goldenrod", "gray", "grey", "green", "greenyellow", "honeydew", + "hotpink", "indianred", "indigo", "ivory", "khaki", "lavender", + "lavenderblush", "lawngreen", "lemonchiffon", "lightblue", "lightcoral", + "lightcyan", "lightgoldenrodyellow", "lightgray", "lightgreen", "lightpink", + "lightsalmon", "lightseagreen", "lightskyblue", "lightslategray", + "lightsteelblue", "lightyellow", "lime", "limegreen", "linen", "magenta", + "maroon", "mediumaquamarine", "mediumblue", "mediumorchid", "mediumpurple", + "mediumseagreen", "mediumslateblue", "mediumspringgreen", "mediumturquoise", + "mediumvioletred", "midnightblue", "mintcream", "mistyrose", "moccasin", + "navajowhite", "navy", "oldlace", "olive", "olivedrab", "orange", "orangered", + "orchid", "palegoldenrod", "palegreen", "paleturquoise", "palevioletred", + "papayawhip", "peachpuff", "peru", "pink", "plum", "powderblue", + "purple", "rebeccapurple", "red", "rosybrown", "royalblue", "saddlebrown", + "salmon", "sandybrown", "seagreen", "seashell", "sienna", "silver", "skyblue", + "slateblue", "slategray", "snow", "springgreen", "steelblue", "tan", + "teal", "thistle", "tomato", "turquoise", "violet", "wheat", "white", + "whitesmoke", "yellow", "yellowgreen" + ], colorKeywords = keySet(colorKeywords_); + + var valueKeywords_ = [ + "above", "absolute", "activeborder", "additive", "activecaption", "afar", + "after-white-space", "ahead", "alias", "all", "all-scroll", "alphabetic", "alternate", + "always", "amharic", "amharic-abegede", "antialiased", "appworkspace", + "arabic-indic", "armenian", "asterisks", "attr", "auto", "auto-flow", "avoid", "avoid-column", "avoid-page", + "avoid-region", "axis-pan", "background", "backwards", "baseline", "below", "bidi-override", "binary", + "bengali", "blink", "block", "block-axis", "bold", "bolder", "border", "border-box", + "both", "bottom", "break", "break-all", "break-word", "bullets", "button", "button-bevel", + "buttonface", "buttonhighlight", "buttonshadow", "buttontext", "calc", "cambodian", + "capitalize", "caps-lock-indicator", "caption", "captiontext", "caret", + "cell", "center", "checkbox", "circle", "cjk-decimal", "cjk-earthly-branch", + "cjk-heavenly-stem", "cjk-ideographic", "clear", "clip", "close-quote", + "col-resize", "collapse", "color", "color-burn", "color-dodge", "column", "column-reverse", + "compact", "condensed", "contain", "content", "contents", + "content-box", "context-menu", "continuous", "copy", "counter", "counters", "cover", "crop", + "cross", "crosshair", "currentcolor", "cursive", "cyclic", "darken", "dashed", "decimal", + "decimal-leading-zero", "default", "default-button", "dense", "destination-atop", + "destination-in", "destination-out", "destination-over", "devanagari", "difference", + "disc", "discard", "disclosure-closed", "disclosure-open", "document", + "dot-dash", "dot-dot-dash", + "dotted", "double", "down", "e-resize", "ease", "ease-in", "ease-in-out", "ease-out", + "element", "ellipse", "ellipsis", "embed", "end", "ethiopic", "ethiopic-abegede", + "ethiopic-abegede-am-et", "ethiopic-abegede-gez", "ethiopic-abegede-ti-er", + "ethiopic-abegede-ti-et", "ethiopic-halehame-aa-er", + "ethiopic-halehame-aa-et", "ethiopic-halehame-am-et", + "ethiopic-halehame-gez", "ethiopic-halehame-om-et", + "ethiopic-halehame-sid-et", "ethiopic-halehame-so-et", + "ethiopic-halehame-ti-er", "ethiopic-halehame-ti-et", "ethiopic-halehame-tig", + "ethiopic-numeric", "ew-resize", "exclusion", "expanded", "extends", "extra-condensed", + "extra-expanded", "fantasy", "fast", "fill", "fill-box", "fixed", "flat", "flex", "flex-end", "flex-start", "footnotes", + "forwards", "from", "geometricPrecision", "georgian", "graytext", "grid", "groove", + "gujarati", "gurmukhi", "hand", "hangul", "hangul-consonant", "hard-light", "hebrew", + "help", "hidden", "hide", "higher", "highlight", "highlighttext", + "hiragana", "hiragana-iroha", "horizontal", "hsl", "hsla", "hue", "icon", "ignore", + "inactiveborder", "inactivecaption", "inactivecaptiontext", "infinite", + "infobackground", "infotext", "inherit", "initial", "inline", "inline-axis", + "inline-block", "inline-flex", "inline-grid", "inline-table", "inset", "inside", "intrinsic", "invert", + "italic", "japanese-formal", "japanese-informal", "justify", "kannada", + "katakana", "katakana-iroha", "keep-all", "khmer", + "korean-hangul-formal", "korean-hanja-formal", "korean-hanja-informal", + "landscape", "lao", "large", "larger", "left", "level", "lighter", "lighten", + "line-through", "linear", "linear-gradient", "lines", "list-item", "listbox", "listitem", + "local", "logical", "loud", "lower", "lower-alpha", "lower-armenian", + "lower-greek", "lower-hexadecimal", "lower-latin", "lower-norwegian", + "lower-roman", "lowercase", "ltr", "luminosity", "malayalam", "manipulation", "match", "matrix", "matrix3d", + "media-controls-background", "media-current-time-display", + "media-fullscreen-button", "media-mute-button", "media-play-button", + "media-return-to-realtime-button", "media-rewind-button", + "media-seek-back-button", "media-seek-forward-button", "media-slider", + "media-sliderthumb", "media-time-remaining-display", "media-volume-slider", + "media-volume-slider-container", "media-volume-sliderthumb", "medium", + "menu", "menulist", "menulist-button", "menulist-text", + "menulist-textfield", "menutext", "message-box", "middle", "min-intrinsic", + "mix", "mongolian", "monospace", "move", "multiple", "multiple_mask_images", "multiply", "myanmar", "n-resize", + "narrower", "ne-resize", "nesw-resize", "no-close-quote", "no-drop", + "no-open-quote", "no-repeat", "none", "normal", "not-allowed", "nowrap", + "ns-resize", "numbers", "numeric", "nw-resize", "nwse-resize", "oblique", "octal", "opacity", "open-quote", + "optimizeLegibility", "optimizeSpeed", "oriya", "oromo", "outset", + "outside", "outside-shape", "overlay", "overline", "padding", "padding-box", + "painted", "page", "paused", "persian", "perspective", "pinch-zoom", "plus-darker", "plus-lighter", + "pointer", "polygon", "portrait", "pre", "pre-line", "pre-wrap", "preserve-3d", + "progress", "push-button", "radial-gradient", "radio", "read-only", + "read-write", "read-write-plaintext-only", "rectangle", "region", + "relative", "repeat", "repeating-linear-gradient", + "repeating-radial-gradient", "repeat-x", "repeat-y", "reset", "reverse", + "rgb", "rgba", "ridge", "right", "rotate", "rotate3d", "rotateX", "rotateY", + "rotateZ", "round", "row", "row-resize", "row-reverse", "rtl", "run-in", "running", + "s-resize", "sans-serif", "saturation", "scale", "scale3d", "scaleX", "scaleY", "scaleZ", "screen", + "scroll", "scrollbar", "scroll-position", "se-resize", "searchfield", + "searchfield-cancel-button", "searchfield-decoration", + "searchfield-results-button", "searchfield-results-decoration", "self-start", "self-end", + "semi-condensed", "semi-expanded", "separate", "serif", "show", "sidama", + "simp-chinese-formal", "simp-chinese-informal", "single", + "skew", "skewX", "skewY", "skip-white-space", "slide", "slider-horizontal", + "slider-vertical", "sliderthumb-horizontal", "sliderthumb-vertical", "slow", + "small", "small-caps", "small-caption", "smaller", "soft-light", "solid", "somali", + "source-atop", "source-in", "source-out", "source-over", "space", "space-around", "space-between", "space-evenly", "spell-out", "square", + "square-button", "start", "static", "status-bar", "stretch", "stroke", "stroke-box", "sub", + "subpixel-antialiased", "svg_masks", "super", "sw-resize", "symbolic", "symbols", "system-ui", "table", + "table-caption", "table-cell", "table-column", "table-column-group", + "table-footer-group", "table-header-group", "table-row", "table-row-group", + "tamil", + "telugu", "text", "text-bottom", "text-top", "textarea", "textfield", "thai", + "thick", "thin", "threeddarkshadow", "threedface", "threedhighlight", + "threedlightshadow", "threedshadow", "tibetan", "tigre", "tigrinya-er", + "tigrinya-er-abegede", "tigrinya-et", "tigrinya-et-abegede", "to", "top", + "trad-chinese-formal", "trad-chinese-informal", "transform", + "translate", "translate3d", "translateX", "translateY", "translateZ", + "transparent", "ultra-condensed", "ultra-expanded", "underline", "unidirectional-pan", "unset", "up", + "upper-alpha", "upper-armenian", "upper-greek", "upper-hexadecimal", + "upper-latin", "upper-norwegian", "upper-roman", "uppercase", "urdu", "url", + "var", "vertical", "vertical-text", "view-box", "visible", "visibleFill", "visiblePainted", + "visibleStroke", "visual", "w-resize", "wait", "wave", "wider", + "window", "windowframe", "windowtext", "words", "wrap", "wrap-reverse", "x-large", "x-small", "xor", + "xx-large", "xx-small" + ], valueKeywords = keySet(valueKeywords_); + + var allWords = documentTypes_.concat(mediaTypes_).concat(mediaFeatures_).concat(mediaValueKeywords_) + .concat(propertyKeywords_).concat(nonStandardPropertyKeywords_).concat(colorKeywords_) + .concat(valueKeywords_); + CodeMirror.registerHelper("hintWords", "css", allWords); + + function tokenCComment(stream, state) { + var maybeEnd = false, ch; + while ((ch = stream.next()) != null) { + if (maybeEnd && ch == "/") { + state.tokenize = null; + break; + } + maybeEnd = (ch == "*"); + } + return ["comment", "comment"]; + } + + CodeMirror.defineMIME("text/css", { + documentTypes: documentTypes, + mediaTypes: mediaTypes, + mediaFeatures: mediaFeatures, + mediaValueKeywords: mediaValueKeywords, + propertyKeywords: propertyKeywords, + nonStandardPropertyKeywords: nonStandardPropertyKeywords, + fontProperties: fontProperties, + counterDescriptors: counterDescriptors, + colorKeywords: colorKeywords, + valueKeywords: valueKeywords, + tokenHooks: { + "/": function(stream, state) { + if (!stream.eat("*")) return false; + state.tokenize = tokenCComment; + return tokenCComment(stream, state); + } + }, + name: "css" + }); + + CodeMirror.defineMIME("text/x-scss", { + mediaTypes: mediaTypes, + mediaFeatures: mediaFeatures, + mediaValueKeywords: mediaValueKeywords, + propertyKeywords: propertyKeywords, + nonStandardPropertyKeywords: nonStandardPropertyKeywords, + colorKeywords: colorKeywords, + valueKeywords: valueKeywords, + fontProperties: fontProperties, + allowNested: true, + lineComment: "//", + tokenHooks: { + "/": function(stream, state) { + if (stream.eat("/")) { + stream.skipToEnd(); + return ["comment", "comment"]; + } else if (stream.eat("*")) { + state.tokenize = tokenCComment; + return tokenCComment(stream, state); + } else { + return ["operator", "operator"]; + } + }, + ":": function(stream) { + if (stream.match(/^\s*\{/, false)) + return [null, null] + return false; + }, + "$": function(stream) { + stream.match(/^[\w-]+/); + if (stream.match(/^\s*:/, false)) + return ["variable-2", "variable-definition"]; + return ["variable-2", "variable"]; + }, + "#": function(stream) { + if (!stream.eat("{")) return false; + return [null, "interpolation"]; + } + }, + name: "css", + helperType: "scss" + }); + + CodeMirror.defineMIME("text/x-less", { + mediaTypes: mediaTypes, + mediaFeatures: mediaFeatures, + mediaValueKeywords: mediaValueKeywords, + propertyKeywords: propertyKeywords, + nonStandardPropertyKeywords: nonStandardPropertyKeywords, + colorKeywords: colorKeywords, + valueKeywords: valueKeywords, + fontProperties: fontProperties, + allowNested: true, + lineComment: "//", + tokenHooks: { + "/": function(stream, state) { + if (stream.eat("/")) { + stream.skipToEnd(); + return ["comment", "comment"]; + } else if (stream.eat("*")) { + state.tokenize = tokenCComment; + return tokenCComment(stream, state); + } else { + return ["operator", "operator"]; + } + }, + "@": function(stream) { + if (stream.eat("{")) return [null, "interpolation"]; + if (stream.match(/^(charset|document|font-face|import|(-(moz|ms|o|webkit)-)?keyframes|media|namespace|page|supports)\b/i, false)) return false; + stream.eatWhile(/[\w\\\-]/); + if (stream.match(/^\s*:/, false)) + return ["variable-2", "variable-definition"]; + return ["variable-2", "variable"]; + }, + "&": function() { + return ["atom", "atom"]; + } + }, + name: "css", + helperType: "less" + }); + + CodeMirror.defineMIME("text/x-gss", { + documentTypes: documentTypes, + mediaTypes: mediaTypes, + mediaFeatures: mediaFeatures, + propertyKeywords: propertyKeywords, + nonStandardPropertyKeywords: nonStandardPropertyKeywords, + fontProperties: fontProperties, + counterDescriptors: counterDescriptors, + colorKeywords: colorKeywords, + valueKeywords: valueKeywords, + supportsAtComponent: true, + tokenHooks: { + "/": function(stream, state) { + if (!stream.eat("*")) return false; + state.tokenize = tokenCComment; + return tokenCComment(stream, state); + } + }, + name: "css", + helperType: "gss" + }); + +}); diff --git a/src/lib/codemirror/mode/htmlmixed/htmlmixed.js b/src/lib/codemirror/mode/htmlmixed/htmlmixed.js new file mode 100644 index 0000000..66a1582 --- /dev/null +++ b/src/lib/codemirror/mode/htmlmixed/htmlmixed.js @@ -0,0 +1,153 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: https://codemirror.net/LICENSE + +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../../lib/codemirror"), require("../xml/xml"), require("../javascript/javascript"), require("../css/css")); + else if (typeof define == "function" && define.amd) // AMD + define(["../../lib/codemirror", "../xml/xml", "../javascript/javascript", "../css/css"], mod); + else // Plain browser env + mod(CodeMirror); +})(function(CodeMirror) { + "use strict"; + + var defaultTags = { + script: [ + ["lang", /(javascript|babel)/i, "javascript"], + ["type", /^(?:text|application)\/(?:x-)?(?:java|ecma)script$|^module$|^$/i, "javascript"], + ["type", /./, "text/plain"], + [null, null, "javascript"] + ], + style: [ + ["lang", /^css$/i, "css"], + ["type", /^(text\/)?(x-)?(stylesheet|css)$/i, "css"], + ["type", /./, "text/plain"], + [null, null, "css"] + ] + }; + + function maybeBackup(stream, pat, style) { + var cur = stream.current(), close = cur.search(pat); + if (close > -1) { + stream.backUp(cur.length - close); + } else if (cur.match(/<\/?$/)) { + stream.backUp(cur.length); + if (!stream.match(pat, false)) stream.match(cur); + } + return style; + } + + var attrRegexpCache = {}; + function getAttrRegexp(attr) { + var regexp = attrRegexpCache[attr]; + if (regexp) return regexp; + return attrRegexpCache[attr] = new RegExp("\\s+" + attr + "\\s*=\\s*('|\")?([^'\"]+)('|\")?\\s*"); + } + + function getAttrValue(text, attr) { + var match = text.match(getAttrRegexp(attr)) + return match ? /^\s*(.*?)\s*$/.exec(match[2])[1] : "" + } + + function getTagRegexp(tagName, anchored) { + return new RegExp((anchored ? "^" : "") + "<\/\s*" + tagName + "\s*>", "i"); + } + + function addTags(from, to) { + for (var tag in from) { + var dest = to[tag] || (to[tag] = []); + var source = from[tag]; + for (var i = source.length - 1; i >= 0; i--) + dest.unshift(source[i]) + } + } + + function findMatchingMode(tagInfo, tagText) { + for (var i = 0; i < tagInfo.length; i++) { + var spec = tagInfo[i]; + if (!spec[0] || spec[1].test(getAttrValue(tagText, spec[0]))) return spec[2]; + } + } + + CodeMirror.defineMode("htmlmixed", function (config, parserConfig) { + var htmlMode = CodeMirror.getMode(config, { + name: "xml", + htmlMode: true, + multilineTagIndentFactor: parserConfig.multilineTagIndentFactor, + multilineTagIndentPastTag: parserConfig.multilineTagIndentPastTag, + allowMissingTagName: parserConfig.allowMissingTagName, + }); + + var tags = {}; + var configTags = parserConfig && parserConfig.tags, configScript = parserConfig && parserConfig.scriptTypes; + addTags(defaultTags, tags); + if (configTags) addTags(configTags, tags); + if (configScript) for (var i = configScript.length - 1; i >= 0; i--) + tags.script.unshift(["type", configScript[i].matches, configScript[i].mode]) + + function html(stream, state) { + var style = htmlMode.token(stream, state.htmlState), tag = /\btag\b/.test(style), tagName + if (tag && !/[<>\s\/]/.test(stream.current()) && + (tagName = state.htmlState.tagName && state.htmlState.tagName.toLowerCase()) && + tags.hasOwnProperty(tagName)) { + state.inTag = tagName + " " + } else if (state.inTag && tag && />$/.test(stream.current())) { + var inTag = /^([\S]+) (.*)/.exec(state.inTag) + state.inTag = null + var modeSpec = stream.current() == ">" && findMatchingMode(tags[inTag[1]], inTag[2]) + var mode = CodeMirror.getMode(config, modeSpec) + var endTagA = getTagRegexp(inTag[1], true), endTag = getTagRegexp(inTag[1], false); + state.token = function (stream, state) { + if (stream.match(endTagA, false)) { + state.token = html; + state.localState = state.localMode = null; + return null; + } + return maybeBackup(stream, endTag, state.localMode.token(stream, state.localState)); + }; + state.localMode = mode; + state.localState = CodeMirror.startState(mode, htmlMode.indent(state.htmlState, "", "")); + } else if (state.inTag) { + state.inTag += stream.current() + if (stream.eol()) state.inTag += " " + } + return style; + }; + + return { + startState: function () { + var state = CodeMirror.startState(htmlMode); + return {token: html, inTag: null, localMode: null, localState: null, htmlState: state}; + }, + + copyState: function (state) { + var local; + if (state.localState) { + local = CodeMirror.copyState(state.localMode, state.localState); + } + return {token: state.token, inTag: state.inTag, + localMode: state.localMode, localState: local, + htmlState: CodeMirror.copyState(htmlMode, state.htmlState)}; + }, + + token: function (stream, state) { + return state.token(stream, state); + }, + + indent: function (state, textAfter, line) { + if (!state.localMode || /^\s*<\//.test(textAfter)) + return htmlMode.indent(state.htmlState, textAfter, line); + else if (state.localMode.indent) + return state.localMode.indent(state.localState, textAfter, line); + else + return CodeMirror.Pass; + }, + + innerMode: function (state) { + return {state: state.localState || state.htmlState, mode: state.localMode || htmlMode}; + } + }; + }, "xml", "javascript", "css"); + + CodeMirror.defineMIME("text/html", "htmlmixed"); +}); diff --git a/src/lib/codemirror/mode/javascript/javascript.js b/src/lib/codemirror/mode/javascript/javascript.js new file mode 100644 index 0000000..0473956 --- /dev/null +++ b/src/lib/codemirror/mode/javascript/javascript.js @@ -0,0 +1,942 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: https://codemirror.net/LICENSE + +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../../lib/codemirror")); + else if (typeof define == "function" && define.amd) // AMD + define(["../../lib/codemirror"], mod); + else // Plain browser env + mod(CodeMirror); +})(function(CodeMirror) { +"use strict"; + +CodeMirror.defineMode("javascript", function(config, parserConfig) { + var indentUnit = config.indentUnit; + var statementIndent = parserConfig.statementIndent; + var jsonldMode = parserConfig.jsonld; + var jsonMode = parserConfig.json || jsonldMode; + var isTS = parserConfig.typescript; + var wordRE = parserConfig.wordCharacters || /[\w$\xa1-\uffff]/; + + // Tokenizer + + var keywords = function(){ + function kw(type) {return {type: type, style: "keyword"};} + var A = kw("keyword a"), B = kw("keyword b"), C = kw("keyword c"), D = kw("keyword d"); + var operator = kw("operator"), atom = {type: "atom", style: "atom"}; + + return { + "if": kw("if"), "while": A, "with": A, "else": B, "do": B, "try": B, "finally": B, + "return": D, "break": D, "continue": D, "new": kw("new"), "delete": C, "void": C, "throw": C, + "debugger": kw("debugger"), "var": kw("var"), "const": kw("var"), "let": kw("var"), + "function": kw("function"), "catch": kw("catch"), + "for": kw("for"), "switch": kw("switch"), "case": kw("case"), "default": kw("default"), + "in": operator, "typeof": operator, "instanceof": operator, + "true": atom, "false": atom, "null": atom, "undefined": atom, "NaN": atom, "Infinity": atom, + "this": kw("this"), "class": kw("class"), "super": kw("atom"), + "yield": C, "export": kw("export"), "import": kw("import"), "extends": C, + "await": C + }; + }(); + + var isOperatorChar = /[+\-*&%=<>!?|~^@]/; + var isJsonldKeyword = /^@(context|id|value|language|type|container|list|set|reverse|index|base|vocab|graph)"/; + + function readRegexp(stream) { + var escaped = false, next, inSet = false; + while ((next = stream.next()) != null) { + if (!escaped) { + if (next == "/" && !inSet) return; + if (next == "[") inSet = true; + else if (inSet && next == "]") inSet = false; + } + escaped = !escaped && next == "\\"; + } + } + + // Used as scratch variables to communicate multiple values without + // consing up tons of objects. + var type, content; + function ret(tp, style, cont) { + type = tp; content = cont; + return style; + } + function tokenBase(stream, state) { + var ch = stream.next(); + if (ch == '"' || ch == "'") { + state.tokenize = tokenString(ch); + return state.tokenize(stream, state); + } else if (ch == "." && stream.match(/^\d[\d_]*(?:[eE][+\-]?[\d_]+)?/)) { + return ret("number", "number"); + } else if (ch == "." && stream.match("..")) { + return ret("spread", "meta"); + } else if (/[\[\]{}\(\),;\:\.]/.test(ch)) { + return ret(ch); + } else if (ch == "=" && stream.eat(">")) { + return ret("=>", "operator"); + } else if (ch == "0" && stream.match(/^(?:x[\dA-Fa-f_]+|o[0-7_]+|b[01_]+)n?/)) { + return ret("number", "number"); + } else if (/\d/.test(ch)) { + stream.match(/^[\d_]*(?:n|(?:\.[\d_]*)?(?:[eE][+\-]?[\d_]+)?)?/); + return ret("number", "number"); + } else if (ch == "/") { + if (stream.eat("*")) { + state.tokenize = tokenComment; + return tokenComment(stream, state); + } else if (stream.eat("/")) { + stream.skipToEnd(); + return ret("comment", "comment"); + } else if (expressionAllowed(stream, state, 1)) { + readRegexp(stream); + stream.match(/^\b(([gimyus])(?![gimyus]*\2))+\b/); + return ret("regexp", "string-2"); + } else { + stream.eat("="); + return ret("operator", "operator", stream.current()); + } + } else if (ch == "`") { + state.tokenize = tokenQuasi; + return tokenQuasi(stream, state); + } else if (ch == "#" && stream.peek() == "!") { + stream.skipToEnd(); + return ret("meta", "meta"); + } else if (ch == "#" && stream.eatWhile(wordRE)) { + return ret("variable", "property") + } else if (ch == "<" && stream.match("!--") || + (ch == "-" && stream.match("->") && !/\S/.test(stream.string.slice(0, stream.start)))) { + stream.skipToEnd() + return ret("comment", "comment") + } else if (isOperatorChar.test(ch)) { + if (ch != ">" || !state.lexical || state.lexical.type != ">") { + if (stream.eat("=")) { + if (ch == "!" || ch == "=") stream.eat("=") + } else if (/[<>*+\-|&?]/.test(ch)) { + stream.eat(ch) + if (ch == ">") stream.eat(ch) + } + } + if (ch == "?" && stream.eat(".")) return ret(".") + return ret("operator", "operator", stream.current()); + } else if (wordRE.test(ch)) { + stream.eatWhile(wordRE); + var word = stream.current() + if (state.lastType != ".") { + if (keywords.propertyIsEnumerable(word)) { + var kw = keywords[word] + return ret(kw.type, kw.style, word) + } + if (word == "async" && stream.match(/^(\s|\/\*([^*]|\*(?!\/))*?\*\/)*[\[\(\w]/, false)) + return ret("async", "keyword", word) + } + return ret("variable", "variable", word) + } + } + + function tokenString(quote) { + return function(stream, state) { + var escaped = false, next; + if (jsonldMode && stream.peek() == "@" && stream.match(isJsonldKeyword)){ + state.tokenize = tokenBase; + return ret("jsonld-keyword", "meta"); + } + while ((next = stream.next()) != null) { + if (next == quote && !escaped) break; + escaped = !escaped && next == "\\"; + } + if (!escaped) state.tokenize = tokenBase; + return ret("string", "string"); + }; + } + + function tokenComment(stream, state) { + var maybeEnd = false, ch; + while (ch = stream.next()) { + if (ch == "/" && maybeEnd) { + state.tokenize = tokenBase; + break; + } + maybeEnd = (ch == "*"); + } + return ret("comment", "comment"); + } + + function tokenQuasi(stream, state) { + var escaped = false, next; + while ((next = stream.next()) != null) { + if (!escaped && (next == "`" || next == "$" && stream.eat("{"))) { + state.tokenize = tokenBase; + break; + } + escaped = !escaped && next == "\\"; + } + return ret("quasi", "string-2", stream.current()); + } + + var brackets = "([{}])"; + // This is a crude lookahead trick to try and notice that we're + // parsing the argument patterns for a fat-arrow function before we + // actually hit the arrow token. It only works if the arrow is on + // the same line as the arguments and there's no strange noise + // (comments) in between. Fallback is to only notice when we hit the + // arrow, and not declare the arguments as locals for the arrow + // body. + function findFatArrow(stream, state) { + if (state.fatArrowAt) state.fatArrowAt = null; + var arrow = stream.string.indexOf("=>", stream.start); + if (arrow < 0) return; + + if (isTS) { // Try to skip TypeScript return type declarations after the arguments + var m = /:\s*(?:\w+(?:<[^>]*>|\[\])?|\{[^}]*\})\s*$/.exec(stream.string.slice(stream.start, arrow)) + if (m) arrow = m.index + } + + var depth = 0, sawSomething = false; + for (var pos = arrow - 1; pos >= 0; --pos) { + var ch = stream.string.charAt(pos); + var bracket = brackets.indexOf(ch); + if (bracket >= 0 && bracket < 3) { + if (!depth) { ++pos; break; } + if (--depth == 0) { if (ch == "(") sawSomething = true; break; } + } else if (bracket >= 3 && bracket < 6) { + ++depth; + } else if (wordRE.test(ch)) { + sawSomething = true; + } else if (/["'\/`]/.test(ch)) { + for (;; --pos) { + if (pos == 0) return + var next = stream.string.charAt(pos - 1) + if (next == ch && stream.string.charAt(pos - 2) != "\\") { pos--; break } + } + } else if (sawSomething && !depth) { + ++pos; + break; + } + } + if (sawSomething && !depth) state.fatArrowAt = pos; + } + + // Parser + + var atomicTypes = {"atom": true, "number": true, "variable": true, "string": true, "regexp": true, "this": true, "jsonld-keyword": true}; + + function JSLexical(indented, column, type, align, prev, info) { + this.indented = indented; + this.column = column; + this.type = type; + this.prev = prev; + this.info = info; + if (align != null) this.align = align; + } + + function inScope(state, varname) { + for (var v = state.localVars; v; v = v.next) + if (v.name == varname) return true; + for (var cx = state.context; cx; cx = cx.prev) { + for (var v = cx.vars; v; v = v.next) + if (v.name == varname) return true; + } + } + + function parseJS(state, style, type, content, stream) { + var cc = state.cc; + // Communicate our context to the combinators. + // (Less wasteful than consing up a hundred closures on every call.) + cx.state = state; cx.stream = stream; cx.marked = null, cx.cc = cc; cx.style = style; + + if (!state.lexical.hasOwnProperty("align")) + state.lexical.align = true; + + while(true) { + var combinator = cc.length ? cc.pop() : jsonMode ? expression : statement; + if (combinator(type, content)) { + while(cc.length && cc[cc.length - 1].lex) + cc.pop()(); + if (cx.marked) return cx.marked; + if (type == "variable" && inScope(state, content)) return "variable-2"; + return style; + } + } + } + + // Combinator utils + + var cx = {state: null, column: null, marked: null, cc: null}; + function pass() { + for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]); + } + function cont() { + pass.apply(null, arguments); + return true; + } + function inList(name, list) { + for (var v = list; v; v = v.next) if (v.name == name) return true + return false; + } + function register(varname) { + var state = cx.state; + cx.marked = "def"; + if (state.context) { + if (state.lexical.info == "var" && state.context && state.context.block) { + // FIXME function decls are also not block scoped + var newContext = registerVarScoped(varname, state.context) + if (newContext != null) { + state.context = newContext + return + } + } else if (!inList(varname, state.localVars)) { + state.localVars = new Var(varname, state.localVars) + return + } + } + // Fall through means this is global + if (parserConfig.globalVars && !inList(varname, state.globalVars)) + state.globalVars = new Var(varname, state.globalVars) + } + function registerVarScoped(varname, context) { + if (!context) { + return null + } else if (context.block) { + var inner = registerVarScoped(varname, context.prev) + if (!inner) return null + if (inner == context.prev) return context + return new Context(inner, context.vars, true) + } else if (inList(varname, context.vars)) { + return context + } else { + return new Context(context.prev, new Var(varname, context.vars), false) + } + } + + function isModifier(name) { + return name == "public" || name == "private" || name == "protected" || name == "abstract" || name == "readonly" + } + + // Combinators + + function Context(prev, vars, block) { this.prev = prev; this.vars = vars; this.block = block } + function Var(name, next) { this.name = name; this.next = next } + + var defaultVars = new Var("this", new Var("arguments", null)) + function pushcontext() { + cx.state.context = new Context(cx.state.context, cx.state.localVars, false) + cx.state.localVars = defaultVars + } + function pushblockcontext() { + cx.state.context = new Context(cx.state.context, cx.state.localVars, true) + cx.state.localVars = null + } + function popcontext() { + cx.state.localVars = cx.state.context.vars + cx.state.context = cx.state.context.prev + } + popcontext.lex = true + function pushlex(type, info) { + var result = function() { + var state = cx.state, indent = state.indented; + if (state.lexical.type == "stat") indent = state.lexical.indented; + else for (var outer = state.lexical; outer && outer.type == ")" && outer.align; outer = outer.prev) + indent = outer.indented; + state.lexical = new JSLexical(indent, cx.stream.column(), type, null, state.lexical, info); + }; + result.lex = true; + return result; + } + function poplex() { + var state = cx.state; + if (state.lexical.prev) { + if (state.lexical.type == ")") + state.indented = state.lexical.indented; + state.lexical = state.lexical.prev; + } + } + poplex.lex = true; + + function expect(wanted) { + function exp(type) { + if (type == wanted) return cont(); + else if (wanted == ";" || type == "}" || type == ")" || type == "]") return pass(); + else return cont(exp); + }; + return exp; + } + + function statement(type, value) { + if (type == "var") return cont(pushlex("vardef", value), vardef, expect(";"), poplex); + if (type == "keyword a") return cont(pushlex("form"), parenExpr, statement, poplex); + if (type == "keyword b") return cont(pushlex("form"), statement, poplex); + if (type == "keyword d") return cx.stream.match(/^\s*$/, false) ? cont() : cont(pushlex("stat"), maybeexpression, expect(";"), poplex); + if (type == "debugger") return cont(expect(";")); + if (type == "{") return cont(pushlex("}"), pushblockcontext, block, poplex, popcontext); + if (type == ";") return cont(); + if (type == "if") { + if (cx.state.lexical.info == "else" && cx.state.cc[cx.state.cc.length - 1] == poplex) + cx.state.cc.pop()(); + return cont(pushlex("form"), parenExpr, statement, poplex, maybeelse); + } + if (type == "function") return cont(functiondef); + if (type == "for") return cont(pushlex("form"), forspec, statement, poplex); + if (type == "class" || (isTS && value == "interface")) { + cx.marked = "keyword" + return cont(pushlex("form", type == "class" ? type : value), className, poplex) + } + if (type == "variable") { + if (isTS && value == "declare") { + cx.marked = "keyword" + return cont(statement) + } else if (isTS && (value == "module" || value == "enum" || value == "type") && cx.stream.match(/^\s*\w/, false)) { + cx.marked = "keyword" + if (value == "enum") return cont(enumdef); + else if (value == "type") return cont(typename, expect("operator"), typeexpr, expect(";")); + else return cont(pushlex("form"), pattern, expect("{"), pushlex("}"), block, poplex, poplex) + } else if (isTS && value == "namespace") { + cx.marked = "keyword" + return cont(pushlex("form"), expression, statement, poplex) + } else if (isTS && value == "abstract") { + cx.marked = "keyword" + return cont(statement) + } else { + return cont(pushlex("stat"), maybelabel); + } + } + if (type == "switch") return cont(pushlex("form"), parenExpr, expect("{"), pushlex("}", "switch"), pushblockcontext, + block, poplex, poplex, popcontext); + if (type == "case") return cont(expression, expect(":")); + if (type == "default") return cont(expect(":")); + if (type == "catch") return cont(pushlex("form"), pushcontext, maybeCatchBinding, statement, poplex, popcontext); + if (type == "export") return cont(pushlex("stat"), afterExport, poplex); + if (type == "import") return cont(pushlex("stat"), afterImport, poplex); + if (type == "async") return cont(statement) + if (value == "@") return cont(expression, statement) + return pass(pushlex("stat"), expression, expect(";"), poplex); + } + function maybeCatchBinding(type) { + if (type == "(") return cont(funarg, expect(")")) + } + function expression(type, value) { + return expressionInner(type, value, false); + } + function expressionNoComma(type, value) { + return expressionInner(type, value, true); + } + function parenExpr(type) { + if (type != "(") return pass() + return cont(pushlex(")"), maybeexpression, expect(")"), poplex) + } + function expressionInner(type, value, noComma) { + if (cx.state.fatArrowAt == cx.stream.start) { + var body = noComma ? arrowBodyNoComma : arrowBody; + if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, expect("=>"), body, popcontext); + else if (type == "variable") return pass(pushcontext, pattern, expect("=>"), body, popcontext); + } + + var maybeop = noComma ? maybeoperatorNoComma : maybeoperatorComma; + if (atomicTypes.hasOwnProperty(type)) return cont(maybeop); + if (type == "function") return cont(functiondef, maybeop); + if (type == "class" || (isTS && value == "interface")) { cx.marked = "keyword"; return cont(pushlex("form"), classExpression, poplex); } + if (type == "keyword c" || type == "async") return cont(noComma ? expressionNoComma : expression); + if (type == "(") return cont(pushlex(")"), maybeexpression, expect(")"), poplex, maybeop); + if (type == "operator" || type == "spread") return cont(noComma ? expressionNoComma : expression); + if (type == "[") return cont(pushlex("]"), arrayLiteral, poplex, maybeop); + if (type == "{") return contCommasep(objprop, "}", null, maybeop); + if (type == "quasi") return pass(quasi, maybeop); + if (type == "new") return cont(maybeTarget(noComma)); + if (type == "import") return cont(expression); + return cont(); + } + function maybeexpression(type) { + if (type.match(/[;\}\)\],]/)) return pass(); + return pass(expression); + } + + function maybeoperatorComma(type, value) { + if (type == ",") return cont(maybeexpression); + return maybeoperatorNoComma(type, value, false); + } + function maybeoperatorNoComma(type, value, noComma) { + var me = noComma == false ? maybeoperatorComma : maybeoperatorNoComma; + var expr = noComma == false ? expression : expressionNoComma; + if (type == "=>") return cont(pushcontext, noComma ? arrowBodyNoComma : arrowBody, popcontext); + if (type == "operator") { + if (/\+\+|--/.test(value) || isTS && value == "!") return cont(me); + if (isTS && value == "<" && cx.stream.match(/^([^<>]|<[^<>]*>)*>\s*\(/, false)) + return cont(pushlex(">"), commasep(typeexpr, ">"), poplex, me); + if (value == "?") return cont(expression, expect(":"), expr); + return cont(expr); + } + if (type == "quasi") { return pass(quasi, me); } + if (type == ";") return; + if (type == "(") return contCommasep(expressionNoComma, ")", "call", me); + if (type == ".") return cont(property, me); + if (type == "[") return cont(pushlex("]"), maybeexpression, expect("]"), poplex, me); + if (isTS && value == "as") { cx.marked = "keyword"; return cont(typeexpr, me) } + if (type == "regexp") { + cx.state.lastType = cx.marked = "operator" + cx.stream.backUp(cx.stream.pos - cx.stream.start - 1) + return cont(expr) + } + } + function quasi(type, value) { + if (type != "quasi") return pass(); + if (value.slice(value.length - 2) != "${") return cont(quasi); + return cont(expression, continueQuasi); + } + function continueQuasi(type) { + if (type == "}") { + cx.marked = "string-2"; + cx.state.tokenize = tokenQuasi; + return cont(quasi); + } + } + function arrowBody(type) { + findFatArrow(cx.stream, cx.state); + return pass(type == "{" ? statement : expression); + } + function arrowBodyNoComma(type) { + findFatArrow(cx.stream, cx.state); + return pass(type == "{" ? statement : expressionNoComma); + } + function maybeTarget(noComma) { + return function(type) { + if (type == ".") return cont(noComma ? targetNoComma : target); + else if (type == "variable" && isTS) return cont(maybeTypeArgs, noComma ? maybeoperatorNoComma : maybeoperatorComma) + else return pass(noComma ? expressionNoComma : expression); + }; + } + function target(_, value) { + if (value == "target") { cx.marked = "keyword"; return cont(maybeoperatorComma); } + } + function targetNoComma(_, value) { + if (value == "target") { cx.marked = "keyword"; return cont(maybeoperatorNoComma); } + } + function maybelabel(type) { + if (type == ":") return cont(poplex, statement); + return pass(maybeoperatorComma, expect(";"), poplex); + } + function property(type) { + if (type == "variable") {cx.marked = "property"; return cont();} + } + function objprop(type, value) { + if (type == "async") { + cx.marked = "property"; + return cont(objprop); + } else if (type == "variable" || cx.style == "keyword") { + cx.marked = "property"; + if (value == "get" || value == "set") return cont(getterSetter); + var m // Work around fat-arrow-detection complication for detecting typescript typed arrow params + if (isTS && cx.state.fatArrowAt == cx.stream.start && (m = cx.stream.match(/^\s*:\s*/, false))) + cx.state.fatArrowAt = cx.stream.pos + m[0].length + return cont(afterprop); + } else if (type == "number" || type == "string") { + cx.marked = jsonldMode ? "property" : (cx.style + " property"); + return cont(afterprop); + } else if (type == "jsonld-keyword") { + return cont(afterprop); + } else if (isTS && isModifier(value)) { + cx.marked = "keyword" + return cont(objprop) + } else if (type == "[") { + return cont(expression, maybetype, expect("]"), afterprop); + } else if (type == "spread") { + return cont(expressionNoComma, afterprop); + } else if (value == "*") { + cx.marked = "keyword"; + return cont(objprop); + } else if (type == ":") { + return pass(afterprop) + } + } + function getterSetter(type) { + if (type != "variable") return pass(afterprop); + cx.marked = "property"; + return cont(functiondef); + } + function afterprop(type) { + if (type == ":") return cont(expressionNoComma); + if (type == "(") return pass(functiondef); + } + function commasep(what, end, sep) { + function proceed(type, value) { + if (sep ? sep.indexOf(type) > -1 : type == ",") { + var lex = cx.state.lexical; + if (lex.info == "call") lex.pos = (lex.pos || 0) + 1; + return cont(function(type, value) { + if (type == end || value == end) return pass() + return pass(what) + }, proceed); + } + if (type == end || value == end) return cont(); + if (sep && sep.indexOf(";") > -1) return pass(what) + return cont(expect(end)); + } + return function(type, value) { + if (type == end || value == end) return cont(); + return pass(what, proceed); + }; + } + function contCommasep(what, end, info) { + for (var i = 3; i < arguments.length; i++) + cx.cc.push(arguments[i]); + return cont(pushlex(end, info), commasep(what, end), poplex); + } + function block(type) { + if (type == "}") return cont(); + return pass(statement, block); + } + function maybetype(type, value) { + if (isTS) { + if (type == ":") return cont(typeexpr); + if (value == "?") return cont(maybetype); + } + } + function maybetypeOrIn(type, value) { + if (isTS && (type == ":" || value == "in")) return cont(typeexpr) + } + function mayberettype(type) { + if (isTS && type == ":") { + if (cx.stream.match(/^\s*\w+\s+is\b/, false)) return cont(expression, isKW, typeexpr) + else return cont(typeexpr) + } + } + function isKW(_, value) { + if (value == "is") { + cx.marked = "keyword" + return cont() + } + } + function typeexpr(type, value) { + if (value == "keyof" || value == "typeof" || value == "infer") { + cx.marked = "keyword" + return cont(value == "typeof" ? expressionNoComma : typeexpr) + } + if (type == "variable" || value == "void") { + cx.marked = "type" + return cont(afterType) + } + if (value == "|" || value == "&") return cont(typeexpr) + if (type == "string" || type == "number" || type == "atom") return cont(afterType); + if (type == "[") return cont(pushlex("]"), commasep(typeexpr, "]", ","), poplex, afterType) + if (type == "{") return cont(pushlex("}"), typeprops, poplex, afterType) + if (type == "(") return cont(commasep(typearg, ")"), maybeReturnType, afterType) + if (type == "<") return cont(commasep(typeexpr, ">"), typeexpr) + } + function maybeReturnType(type) { + if (type == "=>") return cont(typeexpr) + } + function typeprops(type) { + if (type.match(/[\}\)\]]/)) return cont() + if (type == "," || type == ";") return cont(typeprops) + return pass(typeprop, typeprops) + } + function typeprop(type, value) { + if (type == "variable" || cx.style == "keyword") { + cx.marked = "property" + return cont(typeprop) + } else if (value == "?" || type == "number" || type == "string") { + return cont(typeprop) + } else if (type == ":") { + return cont(typeexpr) + } else if (type == "[") { + return cont(expect("variable"), maybetypeOrIn, expect("]"), typeprop) + } else if (type == "(") { + return pass(functiondecl, typeprop) + } else if (!type.match(/[;\}\)\],]/)) { + return cont() + } + } + function typearg(type, value) { + if (type == "variable" && cx.stream.match(/^\s*[?:]/, false) || value == "?") return cont(typearg) + if (type == ":") return cont(typeexpr) + if (type == "spread") return cont(typearg) + return pass(typeexpr) + } + function afterType(type, value) { + if (value == "<") return cont(pushlex(">"), commasep(typeexpr, ">"), poplex, afterType) + if (value == "|" || type == "." || value == "&") return cont(typeexpr) + if (type == "[") return cont(typeexpr, expect("]"), afterType) + if (value == "extends" || value == "implements") { cx.marked = "keyword"; return cont(typeexpr) } + if (value == "?") return cont(typeexpr, expect(":"), typeexpr) + } + function maybeTypeArgs(_, value) { + if (value == "<") return cont(pushlex(">"), commasep(typeexpr, ">"), poplex, afterType) + } + function typeparam() { + return pass(typeexpr, maybeTypeDefault) + } + function maybeTypeDefault(_, value) { + if (value == "=") return cont(typeexpr) + } + function vardef(_, value) { + if (value == "enum") {cx.marked = "keyword"; return cont(enumdef)} + return pass(pattern, maybetype, maybeAssign, vardefCont); + } + function pattern(type, value) { + if (isTS && isModifier(value)) { cx.marked = "keyword"; return cont(pattern) } + if (type == "variable") { register(value); return cont(); } + if (type == "spread") return cont(pattern); + if (type == "[") return contCommasep(eltpattern, "]"); + if (type == "{") return contCommasep(proppattern, "}"); + } + function proppattern(type, value) { + if (type == "variable" && !cx.stream.match(/^\s*:/, false)) { + register(value); + return cont(maybeAssign); + } + if (type == "variable") cx.marked = "property"; + if (type == "spread") return cont(pattern); + if (type == "}") return pass(); + if (type == "[") return cont(expression, expect(']'), expect(':'), proppattern); + return cont(expect(":"), pattern, maybeAssign); + } + function eltpattern() { + return pass(pattern, maybeAssign) + } + function maybeAssign(_type, value) { + if (value == "=") return cont(expressionNoComma); + } + function vardefCont(type) { + if (type == ",") return cont(vardef); + } + function maybeelse(type, value) { + if (type == "keyword b" && value == "else") return cont(pushlex("form", "else"), statement, poplex); + } + function forspec(type, value) { + if (value == "await") return cont(forspec); + if (type == "(") return cont(pushlex(")"), forspec1, poplex); + } + function forspec1(type) { + if (type == "var") return cont(vardef, forspec2); + if (type == "variable") return cont(forspec2); + return pass(forspec2) + } + function forspec2(type, value) { + if (type == ")") return cont() + if (type == ";") return cont(forspec2) + if (value == "in" || value == "of") { cx.marked = "keyword"; return cont(expression, forspec2) } + return pass(expression, forspec2) + } + function functiondef(type, value) { + if (value == "*") {cx.marked = "keyword"; return cont(functiondef);} + if (type == "variable") {register(value); return cont(functiondef);} + if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, mayberettype, statement, popcontext); + if (isTS && value == "<") return cont(pushlex(">"), commasep(typeparam, ">"), poplex, functiondef) + } + function functiondecl(type, value) { + if (value == "*") {cx.marked = "keyword"; return cont(functiondecl);} + if (type == "variable") {register(value); return cont(functiondecl);} + if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, mayberettype, popcontext); + if (isTS && value == "<") return cont(pushlex(">"), commasep(typeparam, ">"), poplex, functiondecl) + } + function typename(type, value) { + if (type == "keyword" || type == "variable") { + cx.marked = "type" + return cont(typename) + } else if (value == "<") { + return cont(pushlex(">"), commasep(typeparam, ">"), poplex) + } + } + function funarg(type, value) { + if (value == "@") cont(expression, funarg) + if (type == "spread") return cont(funarg); + if (isTS && isModifier(value)) { cx.marked = "keyword"; return cont(funarg); } + if (isTS && type == "this") return cont(maybetype, maybeAssign) + return pass(pattern, maybetype, maybeAssign); + } + function classExpression(type, value) { + // Class expressions may have an optional name. + if (type == "variable") return className(type, value); + return classNameAfter(type, value); + } + function className(type, value) { + if (type == "variable") {register(value); return cont(classNameAfter);} + } + function classNameAfter(type, value) { + if (value == "<") return cont(pushlex(">"), commasep(typeparam, ">"), poplex, classNameAfter) + if (value == "extends" || value == "implements" || (isTS && type == ",")) { + if (value == "implements") cx.marked = "keyword"; + return cont(isTS ? typeexpr : expression, classNameAfter); + } + if (type == "{") return cont(pushlex("}"), classBody, poplex); + } + function classBody(type, value) { + if (type == "async" || + (type == "variable" && + (value == "static" || value == "get" || value == "set" || (isTS && isModifier(value))) && + cx.stream.match(/^\s+[\w$\xa1-\uffff]/, false))) { + cx.marked = "keyword"; + return cont(classBody); + } + if (type == "variable" || cx.style == "keyword") { + cx.marked = "property"; + return cont(classfield, classBody); + } + if (type == "number" || type == "string") return cont(classfield, classBody); + if (type == "[") + return cont(expression, maybetype, expect("]"), classfield, classBody) + if (value == "*") { + cx.marked = "keyword"; + return cont(classBody); + } + if (isTS && type == "(") return pass(functiondecl, classBody) + if (type == ";" || type == ",") return cont(classBody); + if (type == "}") return cont(); + if (value == "@") return cont(expression, classBody) + } + function classfield(type, value) { + if (value == "?") return cont(classfield) + if (type == ":") return cont(typeexpr, maybeAssign) + if (value == "=") return cont(expressionNoComma) + var context = cx.state.lexical.prev, isInterface = context && context.info == "interface" + return pass(isInterface ? functiondecl : functiondef) + } + function afterExport(type, value) { + if (value == "*") { cx.marked = "keyword"; return cont(maybeFrom, expect(";")); } + if (value == "default") { cx.marked = "keyword"; return cont(expression, expect(";")); } + if (type == "{") return cont(commasep(exportField, "}"), maybeFrom, expect(";")); + return pass(statement); + } + function exportField(type, value) { + if (value == "as") { cx.marked = "keyword"; return cont(expect("variable")); } + if (type == "variable") return pass(expressionNoComma, exportField); + } + function afterImport(type) { + if (type == "string") return cont(); + if (type == "(") return pass(expression); + return pass(importSpec, maybeMoreImports, maybeFrom); + } + function importSpec(type, value) { + if (type == "{") return contCommasep(importSpec, "}"); + if (type == "variable") register(value); + if (value == "*") cx.marked = "keyword"; + return cont(maybeAs); + } + function maybeMoreImports(type) { + if (type == ",") return cont(importSpec, maybeMoreImports) + } + function maybeAs(_type, value) { + if (value == "as") { cx.marked = "keyword"; return cont(importSpec); } + } + function maybeFrom(_type, value) { + if (value == "from") { cx.marked = "keyword"; return cont(expression); } + } + function arrayLiteral(type) { + if (type == "]") return cont(); + return pass(commasep(expressionNoComma, "]")); + } + function enumdef() { + return pass(pushlex("form"), pattern, expect("{"), pushlex("}"), commasep(enummember, "}"), poplex, poplex) + } + function enummember() { + return pass(pattern, maybeAssign); + } + + function isContinuedStatement(state, textAfter) { + return state.lastType == "operator" || state.lastType == "," || + isOperatorChar.test(textAfter.charAt(0)) || + /[,.]/.test(textAfter.charAt(0)); + } + + function expressionAllowed(stream, state, backUp) { + return state.tokenize == tokenBase && + /^(?:operator|sof|keyword [bcd]|case|new|export|default|spread|[\[{}\(,;:]|=>)$/.test(state.lastType) || + (state.lastType == "quasi" && /\{\s*$/.test(stream.string.slice(0, stream.pos - (backUp || 0)))) + } + + // Interface + + return { + startState: function(basecolumn) { + var state = { + tokenize: tokenBase, + lastType: "sof", + cc: [], + lexical: new JSLexical((basecolumn || 0) - indentUnit, 0, "block", false), + localVars: parserConfig.localVars, + context: parserConfig.localVars && new Context(null, null, false), + indented: basecolumn || 0 + }; + if (parserConfig.globalVars && typeof parserConfig.globalVars == "object") + state.globalVars = parserConfig.globalVars; + return state; + }, + + token: function(stream, state) { + if (stream.sol()) { + if (!state.lexical.hasOwnProperty("align")) + state.lexical.align = false; + state.indented = stream.indentation(); + findFatArrow(stream, state); + } + if (state.tokenize != tokenComment && stream.eatSpace()) return null; + var style = state.tokenize(stream, state); + if (type == "comment") return style; + state.lastType = type == "operator" && (content == "++" || content == "--") ? "incdec" : type; + return parseJS(state, style, type, content, stream); + }, + + indent: function(state, textAfter) { + if (state.tokenize == tokenComment || state.tokenize == tokenQuasi) return CodeMirror.Pass; + if (state.tokenize != tokenBase) return 0; + var firstChar = textAfter && textAfter.charAt(0), lexical = state.lexical, top + // Kludge to prevent 'maybelse' from blocking lexical scope pops + if (!/^\s*else\b/.test(textAfter)) for (var i = state.cc.length - 1; i >= 0; --i) { + var c = state.cc[i]; + if (c == poplex) lexical = lexical.prev; + else if (c != maybeelse) break; + } + while ((lexical.type == "stat" || lexical.type == "form") && + (firstChar == "}" || ((top = state.cc[state.cc.length - 1]) && + (top == maybeoperatorComma || top == maybeoperatorNoComma) && + !/^[,\.=+\-*:?[\(]/.test(textAfter)))) + lexical = lexical.prev; + if (statementIndent && lexical.type == ")" && lexical.prev.type == "stat") + lexical = lexical.prev; + var type = lexical.type, closing = firstChar == type; + + if (type == "vardef") return lexical.indented + (state.lastType == "operator" || state.lastType == "," ? lexical.info.length + 1 : 0); + else if (type == "form" && firstChar == "{") return lexical.indented; + else if (type == "form") return lexical.indented + indentUnit; + else if (type == "stat") + return lexical.indented + (isContinuedStatement(state, textAfter) ? statementIndent || indentUnit : 0); + else if (lexical.info == "switch" && !closing && parserConfig.doubleIndentSwitch != false) + return lexical.indented + (/^(?:case|default)\b/.test(textAfter) ? indentUnit : 2 * indentUnit); + else if (lexical.align) return lexical.column + (closing ? 0 : 1); + else return lexical.indented + (closing ? 0 : indentUnit); + }, + + electricInput: /^\s*(?:case .*?:|default:|\{|\})$/, + blockCommentStart: jsonMode ? null : "/*", + blockCommentEnd: jsonMode ? null : "*/", + blockCommentContinue: jsonMode ? null : " * ", + lineComment: jsonMode ? null : "//", + fold: "brace", + closeBrackets: "()[]{}''\"\"``", + + helperType: jsonMode ? "json" : "javascript", + jsonldMode: jsonldMode, + jsonMode: jsonMode, + + expressionAllowed: expressionAllowed, + + skipExpression: function(state) { + var top = state.cc[state.cc.length - 1] + if (top == expression || top == expressionNoComma) state.cc.pop() + } + }; +}); + +CodeMirror.registerHelper("wordChars", "javascript", /[\w$]/); + +CodeMirror.defineMIME("text/javascript", "javascript"); +CodeMirror.defineMIME("text/ecmascript", "javascript"); +CodeMirror.defineMIME("application/javascript", "javascript"); +CodeMirror.defineMIME("application/x-javascript", "javascript"); +CodeMirror.defineMIME("application/ecmascript", "javascript"); +CodeMirror.defineMIME("application/json", { name: "javascript", json: true }); +CodeMirror.defineMIME("application/x-json", { name: "javascript", json: true }); +CodeMirror.defineMIME("application/manifest+json", { name: "javascript", json: true }) +CodeMirror.defineMIME("application/ld+json", { name: "javascript", jsonld: true }); +CodeMirror.defineMIME("text/typescript", { name: "javascript", typescript: true }); +CodeMirror.defineMIME("application/typescript", { name: "javascript", typescript: true }); + +}); diff --git a/src/lib/codemirror/mode/xml/xml.js b/src/lib/codemirror/mode/xml/xml.js new file mode 100644 index 0000000..46806ac --- /dev/null +++ b/src/lib/codemirror/mode/xml/xml.js @@ -0,0 +1,413 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: https://codemirror.net/LICENSE + +(function(mod) { + if (typeof exports == "object" && typeof module == "object") // CommonJS + mod(require("../../lib/codemirror")); + else if (typeof define == "function" && define.amd) // AMD + define(["../../lib/codemirror"], mod); + else // Plain browser env + mod(CodeMirror); +})(function(CodeMirror) { +"use strict"; + +var htmlConfig = { + autoSelfClosers: {'area': true, 'base': true, 'br': true, 'col': true, 'command': true, + 'embed': true, 'frame': true, 'hr': true, 'img': true, 'input': true, + 'keygen': true, 'link': true, 'meta': true, 'param': true, 'source': true, + 'track': true, 'wbr': true, 'menuitem': true}, + implicitlyClosed: {'dd': true, 'li': true, 'optgroup': true, 'option': true, 'p': true, + 'rp': true, 'rt': true, 'tbody': true, 'td': true, 'tfoot': true, + 'th': true, 'tr': true}, + contextGrabbers: { + 'dd': {'dd': true, 'dt': true}, + 'dt': {'dd': true, 'dt': true}, + 'li': {'li': true}, + 'option': {'option': true, 'optgroup': true}, + 'optgroup': {'optgroup': true}, + 'p': {'address': true, 'article': true, 'aside': true, 'blockquote': true, 'dir': true, + 'div': true, 'dl': true, 'fieldset': true, 'footer': true, 'form': true, + 'h1': true, 'h2': true, 'h3': true, 'h4': true, 'h5': true, 'h6': true, + 'header': true, 'hgroup': true, 'hr': true, 'menu': true, 'nav': true, 'ol': true, + 'p': true, 'pre': true, 'section': true, 'table': true, 'ul': true}, + 'rp': {'rp': true, 'rt': true}, + 'rt': {'rp': true, 'rt': true}, + 'tbody': {'tbody': true, 'tfoot': true}, + 'td': {'td': true, 'th': true}, + 'tfoot': {'tbody': true}, + 'th': {'td': true, 'th': true}, + 'thead': {'tbody': true, 'tfoot': true}, + 'tr': {'tr': true} + }, + doNotIndent: {"pre": true}, + allowUnquoted: true, + allowMissing: true, + caseFold: true +} + +var xmlConfig = { + autoSelfClosers: {}, + implicitlyClosed: {}, + contextGrabbers: {}, + doNotIndent: {}, + allowUnquoted: false, + allowMissing: false, + allowMissingTagName: false, + caseFold: false +} + +CodeMirror.defineMode("xml", function(editorConf, config_) { + var indentUnit = editorConf.indentUnit + var config = {} + var defaults = config_.htmlMode ? htmlConfig : xmlConfig + for (var prop in defaults) config[prop] = defaults[prop] + for (var prop in config_) config[prop] = config_[prop] + + // Return variables for tokenizers + var type, setStyle; + + function inText(stream, state) { + function chain(parser) { + state.tokenize = parser; + return parser(stream, state); + } + + var ch = stream.next(); + if (ch == "<") { + if (stream.eat("!")) { + if (stream.eat("[")) { + if (stream.match("CDATA[")) return chain(inBlock("atom", "]]>")); + else return null; + } else if (stream.match("--")) { + return chain(inBlock("comment", "-->")); + } else if (stream.match("DOCTYPE", true, true)) { + stream.eatWhile(/[\w\._\-]/); + return chain(doctype(1)); + } else { + return null; + } + } else if (stream.eat("?")) { + stream.eatWhile(/[\w\._\-]/); + state.tokenize = inBlock("meta", "?>"); + return "meta"; + } else { + type = stream.eat("/") ? "closeTag" : "openTag"; + state.tokenize = inTag; + return "tag bracket"; + } + } else if (ch == "&") { + var ok; + if (stream.eat("#")) { + if (stream.eat("x")) { + ok = stream.eatWhile(/[a-fA-F\d]/) && stream.eat(";"); + } else { + ok = stream.eatWhile(/[\d]/) && stream.eat(";"); + } + } else { + ok = stream.eatWhile(/[\w\.\-:]/) && stream.eat(";"); + } + return ok ? "atom" : "error"; + } else { + stream.eatWhile(/[^&<]/); + return null; + } + } + inText.isInText = true; + + function inTag(stream, state) { + var ch = stream.next(); + if (ch == ">" || (ch == "/" && stream.eat(">"))) { + state.tokenize = inText; + type = ch == ">" ? "endTag" : "selfcloseTag"; + return "tag bracket"; + } else if (ch == "=") { + type = "equals"; + return null; + } else if (ch == "<") { + state.tokenize = inText; + state.state = baseState; + state.tagName = state.tagStart = null; + var next = state.tokenize(stream, state); + return next ? next + " tag error" : "tag error"; + } else if (/[\'\"]/.test(ch)) { + state.tokenize = inAttribute(ch); + state.stringStartCol = stream.column(); + return state.tokenize(stream, state); + } else { + stream.match(/^[^\s\u00a0=<>\"\']*[^\s\u00a0=<>\"\'\/]/); + return "word"; + } + } + + function inAttribute(quote) { + var closure = function(stream, state) { + while (!stream.eol()) { + if (stream.next() == quote) { + state.tokenize = inTag; + break; + } + } + return "string"; + }; + closure.isInAttribute = true; + return closure; + } + + function inBlock(style, terminator) { + return function(stream, state) { + while (!stream.eol()) { + if (stream.match(terminator)) { + state.tokenize = inText; + break; + } + stream.next(); + } + return style; + } + } + + function doctype(depth) { + return function(stream, state) { + var ch; + while ((ch = stream.next()) != null) { + if (ch == "<") { + state.tokenize = doctype(depth + 1); + return state.tokenize(stream, state); + } else if (ch == ">") { + if (depth == 1) { + state.tokenize = inText; + break; + } else { + state.tokenize = doctype(depth - 1); + return state.tokenize(stream, state); + } + } + } + return "meta"; + }; + } + + function Context(state, tagName, startOfLine) { + this.prev = state.context; + this.tagName = tagName || ""; + this.indent = state.indented; + this.startOfLine = startOfLine; + if (config.doNotIndent.hasOwnProperty(tagName) || (state.context && state.context.noIndent)) + this.noIndent = true; + } + function popContext(state) { + if (state.context) state.context = state.context.prev; + } + function maybePopContext(state, nextTagName) { + var parentTagName; + while (true) { + if (!state.context) { + return; + } + parentTagName = state.context.tagName; + if (!config.contextGrabbers.hasOwnProperty(parentTagName) || + !config.contextGrabbers[parentTagName].hasOwnProperty(nextTagName)) { + return; + } + popContext(state); + } + } + + function baseState(type, stream, state) { + if (type == "openTag") { + state.tagStart = stream.column(); + return tagNameState; + } else if (type == "closeTag") { + return closeTagNameState; + } else { + return baseState; + } + } + function tagNameState(type, stream, state) { + if (type == "word") { + state.tagName = stream.current(); + setStyle = "tag"; + return attrState; + } else if (config.allowMissingTagName && type == "endTag") { + setStyle = "tag bracket"; + return attrState(type, stream, state); + } else { + setStyle = "error"; + return tagNameState; + } + } + function closeTagNameState(type, stream, state) { + if (type == "word") { + var tagName = stream.current(); + if (state.context && state.context.tagName != tagName && + config.implicitlyClosed.hasOwnProperty(state.context.tagName)) + popContext(state); + if ((state.context && state.context.tagName == tagName) || config.matchClosing === false) { + setStyle = "tag"; + return closeState; + } else { + setStyle = "tag error"; + return closeStateErr; + } + } else if (config.allowMissingTagName && type == "endTag") { + setStyle = "tag bracket"; + return closeState(type, stream, state); + } else { + setStyle = "error"; + return closeStateErr; + } + } + + function closeState(type, _stream, state) { + if (type != "endTag") { + setStyle = "error"; + return closeState; + } + popContext(state); + return baseState; + } + function closeStateErr(type, stream, state) { + setStyle = "error"; + return closeState(type, stream, state); + } + + function attrState(type, _stream, state) { + if (type == "word") { + setStyle = "attribute"; + return attrEqState; + } else if (type == "endTag" || type == "selfcloseTag") { + var tagName = state.tagName, tagStart = state.tagStart; + state.tagName = state.tagStart = null; + if (type == "selfcloseTag" || + config.autoSelfClosers.hasOwnProperty(tagName)) { + maybePopContext(state, tagName); + } else { + maybePopContext(state, tagName); + state.context = new Context(state, tagName, tagStart == state.indented); + } + return baseState; + } + setStyle = "error"; + return attrState; + } + function attrEqState(type, stream, state) { + if (type == "equals") return attrValueState; + if (!config.allowMissing) setStyle = "error"; + return attrState(type, stream, state); + } + function attrValueState(type, stream, state) { + if (type == "string") return attrContinuedState; + if (type == "word" && config.allowUnquoted) {setStyle = "string"; return attrState;} + setStyle = "error"; + return attrState(type, stream, state); + } + function attrContinuedState(type, stream, state) { + if (type == "string") return attrContinuedState; + return attrState(type, stream, state); + } + + return { + startState: function(baseIndent) { + var state = {tokenize: inText, + state: baseState, + indented: baseIndent || 0, + tagName: null, tagStart: null, + context: null} + if (baseIndent != null) state.baseIndent = baseIndent + return state + }, + + token: function(stream, state) { + if (!state.tagName && stream.sol()) + state.indented = stream.indentation(); + + if (stream.eatSpace()) return null; + type = null; + var style = state.tokenize(stream, state); + if ((style || type) && style != "comment") { + setStyle = null; + state.state = state.state(type || style, stream, state); + if (setStyle) + style = setStyle == "error" ? style + " error" : setStyle; + } + return style; + }, + + indent: function(state, textAfter, fullLine) { + var context = state.context; + // Indent multi-line strings (e.g. css). + if (state.tokenize.isInAttribute) { + if (state.tagStart == state.indented) + return state.stringStartCol + 1; + else + return state.indented + indentUnit; + } + if (context && context.noIndent) return CodeMirror.Pass; + if (state.tokenize != inTag && state.tokenize != inText) + return fullLine ? fullLine.match(/^(\s*)/)[0].length : 0; + // Indent the starts of attribute names. + if (state.tagName) { + if (config.multilineTagIndentPastTag !== false) + return state.tagStart + state.tagName.length + 2; + else + return state.tagStart + indentUnit * (config.multilineTagIndentFactor || 1); + } + if (config.alignCDATA && /<!\[CDATA\[/.test(textAfter)) return 0; + var tagAfter = textAfter && /^<(\/)?([\w_:\.-]*)/.exec(textAfter); + if (tagAfter && tagAfter[1]) { // Closing tag spotted + while (context) { + if (context.tagName == tagAfter[2]) { + context = context.prev; + break; + } else if (config.implicitlyClosed.hasOwnProperty(context.tagName)) { + context = context.prev; + } else { + break; + } + } + } else if (tagAfter) { // Opening tag spotted + while (context) { + var grabbers = config.contextGrabbers[context.tagName]; + if (grabbers && grabbers.hasOwnProperty(tagAfter[2])) + context = context.prev; + else + break; + } + } + while (context && context.prev && !context.startOfLine) + context = context.prev; + if (context) return context.indent + indentUnit; + else return state.baseIndent || 0; + }, + + electricInput: /<\/[\s\w:]+>$/, + blockCommentStart: "<!--", + blockCommentEnd: "-->", + + configuration: config.htmlMode ? "html" : "xml", + helperType: config.htmlMode ? "html" : "xml", + + skipAttribute: function(state) { + if (state.state == attrValueState) + state.state = attrState + }, + + xmlCurrentTag: function(state) { + return state.tagName ? {name: state.tagName, close: state.type == "closeTag"} : null + }, + + xmlCurrentContext: function(state) { + var context = [] + for (var cx = state.context; cx; cx = cx.prev) + context.push(cx.tagName) + return context.reverse() + } + }; +}); + +CodeMirror.defineMIME("text/xml", "xml"); +CodeMirror.defineMIME("application/xml", "xml"); +if (!CodeMirror.mimeModes.hasOwnProperty("text/html")) + CodeMirror.defineMIME("text/html", {name: "xml", htmlMode: true}); + +}); diff --git a/src/lib/codemirror/theme/night.css b/src/lib/codemirror/theme/night.css new file mode 100644 index 0000000..f631bf4 --- /dev/null +++ b/src/lib/codemirror/theme/night.css @@ -0,0 +1,27 @@ +/* Loosely based on the Midnight Textmate theme */ + +.cm-s-night.CodeMirror { background: #0a001f; color: #f8f8f8; } +.cm-s-night div.CodeMirror-selected { background: #447; } +.cm-s-night .CodeMirror-line::selection, .cm-s-night .CodeMirror-line > span::selection, .cm-s-night .CodeMirror-line > span > span::selection { background: rgba(68, 68, 119, .99); } +.cm-s-night .CodeMirror-line::-moz-selection, .cm-s-night .CodeMirror-line > span::-moz-selection, .cm-s-night .CodeMirror-line > span > span::-moz-selection { background: rgba(68, 68, 119, .99); } +.cm-s-night .CodeMirror-gutters { background: #0a001f; border-right: 1px solid #aaa; } +.cm-s-night .CodeMirror-guttermarker { color: white; } +.cm-s-night .CodeMirror-guttermarker-subtle { color: #bbb; } +.cm-s-night .CodeMirror-linenumber { color: #f8f8f8; } +.cm-s-night .CodeMirror-cursor { border-left: 1px solid white; } + +.cm-s-night span.cm-comment { color: #8900d1; } +.cm-s-night span.cm-atom { color: #845dc4; } +.cm-s-night span.cm-number, .cm-s-night span.cm-attribute { color: #ffd500; } +.cm-s-night span.cm-keyword { color: #599eff; } +.cm-s-night span.cm-string { color: #37f14a; } +.cm-s-night span.cm-meta { color: #7678e2; } +.cm-s-night span.cm-variable-2, .cm-s-night span.cm-tag { color: #99b2ff; } +.cm-s-night span.cm-variable-3, .cm-s-night span.cm-def, .cm-s-night span.cm-type { color: white; } +.cm-s-night span.cm-bracket { color: #8da6ce; } +.cm-s-night span.cm-builtin, .cm-s-night span.cm-special { color: #ff9e59; } +.cm-s-night span.cm-link { color: #845dc4; } +.cm-s-night span.cm-error { color: #9d1e15; } + +.cm-s-night .CodeMirror-activeline-background { background: #1C005A; } +.cm-s-night .CodeMirror-matchingbracket { outline:1px solid grey; color:white !important; } diff --git a/src/lib/csstree/LICENSE b/src/lib/csstree/LICENSE new file mode 100644 index 0000000..b46f3c4 --- /dev/null +++ b/src/lib/csstree/LICENSE @@ -0,0 +1,19 @@ +Copyright (C) 2016-2022 by Roman Dvornov + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. diff --git a/src/lib/csstree/css-tree.js b/src/lib/csstree/css-tree.js new file mode 100644 index 0000000..90e8bad --- /dev/null +++ b/src/lib/csstree/css-tree.js @@ -0,0 +1,17 @@ +/** + * Skipped minification because the original files appears to be already minified. + * Original file: /npm/css-tree@2.2.1/dist/csstree.esm.js + * + * Do NOT use SRI with dynamically generated files! 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t}var{tokenize:ob,parse:ib,generate:ab,lexer:sb,createLexer:lb,walk:cb,find:ub,findLast:pb,findAll:hb,toPlainObject:mb,fromPlainObject:fb,fork:db}=Za;export{Ke as Lexer,I as List,nt as TokenStream,Bo as clone,lb as createLexer,Xr as createSyntax,Qi as definitionSyntax,ub as find,hb as findAll,pb as findLast,db as fork,fb as fromPlainObject,ab as generate,es as ident,Rt as isCustomProperty,Mt as keyword,sb as lexer,ib as parse,vr as property,fo as string,mb as toPlainObject,Fe as tokenNames,Ze as tokenTypes,ob as tokenize,Po as url,_m as vendorPrefix,Zg as version,cb as walk}; diff --git a/src/lib/diff/README.md b/src/lib/diff/README.md new file mode 100644 index 0000000..e1a90b0 --- /dev/null +++ b/src/lib/diff/README.md @@ -0,0 +1,34 @@ +# diff + +implementation of myers diff algorithm + +[](https://travis-ci.org/Swatinem/diff) +[](https://coveralls.io/r/Swatinem/diff) +[](https://gemnasium.com/Swatinem/diff) + + +This uses the [*An O(ND) Difference Algorithm and Its Variations*](http://www.xmailserver.org/diff2.pdf) +Also see http://simplygenius.net/Article/DiffTutorial2 and +http://www.mathertel.de/Diff/ViewSrc.aspx for more inspiration + +## Installation + + $ npm install diff + $ component install Swatinem/diff + +## Usage + +### diff(a, b, [eql(a, b)]) + +Given two arrays (or array-likes, such as strings) `a` and `b` and an optional +equal function `eql`, this will return an array with the following operations: +* *nop* the element is in both arrays +* *ins* the element is only in array `b` and will be inserted +* *del* the element in only in array `a` and will be removed +* *rep* the element from `a` will be replaced by the element from `b`. +This is essentially the same as a del+ins + +## License + + LGPLv3 + diff --git a/src/lib/diff/swatinem_diff.js b/src/lib/diff/swatinem_diff.js new file mode 100644 index 0000000..d986b2f --- /dev/null +++ b/src/lib/diff/swatinem_diff.js @@ -0,0 +1,272 @@ +/******************************************************************************* + + Key portions of code below was borrowed from: + https://github.com/Swatinem/diff + + License is LGPL3 (thanks!) as per: + https://github.com/Swatinem/diff/blob/b58391504759/README.md + + I chose to pick this implementation over + https://github.com/google/diff-match-patch as suggested by CodeMirror + because: + + - Code is clean and simple to read -- useful when unfamiliar with the diff + algorithm, this makes changing the code easier if/when needed. + + - Smaller -- diff_match_patch comes with an extended API most of which is + of no use to the current project. + - diff_match_patch uncompressed: 74.7 KB + - Swatinem's diff uncompressed: 3.66 KB + + - I can easily adapt Swatinem's diff to deal with arrays of strings, which + is best suited for the current project -- it natively work with arrays. + + I removed portions of code which are of no use for the current project. + + I modified the diff script generator (Diff.prototype.editscript) since I + need to generate a script which is compatible with the output of the + diff_match_patch, as expected by CodeMirror. + + 2018-12-20 gorhill: + =================== + There was an issue causing the wrong diff data to be issued, for instance + when diff-ing these two URLs on a character granularity basis (failure + point is marked): + | + /articles/5c1a7aae1854f30006cb26f7/lede/1545239527833-shutterstock_726 01757 2-copy.jpeg?crop=0.8889xw%3A0.9988xh%3B0.1089xw%2C0xh&resize=650%3A*&output-quality=55 + /articles/5c1a* 1854f30006cb2* /lede/15452* -shutterstock_* 017* 2-copy.jpeg?crop=0.* xw%3A* h%3B0.0* xw%2C0xh&resize=650%3A*&output-quality=55 + /articles/5c1aaea91854f30006cb2f1e/lede/1545253629235-shutterstock_106399017 2-copy.jpeg?crop=0.7749xw%3A1 xh%3B0.0391xw%2C0xh&resize=650%3A*&output-quality=55 + | + + Investigating, I found what appears to be the original source on which the + code below is based: + - "An O(ND) Difference Algorithm for C#" by Matthias Hertel + - http://www.mathertel.de/Diff/ViewSrc.aspx + - https://github.com/mathertel + + There was a difference; code had been commented out in the original source: + http://www.mathertel.de/Diff/DiffTest.aspx?oldfile=Diff.cs.v1&newfile=Diff.cs.v2 + + The developer noted: + > There have been overlapping boxes; that where analyzed partial differently. + > One return-point is enough. + + After applying the changes to the code below, the problematic diff-ing went + away: + | + /articles/5c1a7aae1854f30006cb26f7/lede/1545239527833-shutterstock_726 01757 2-copy.jpeg?crop=0.8889xw%3A0.9988xh%3B0.1089xw%2C0xh&resize=650%3A*&output-quality=55 + /articles/5c1a* 1854f30006cb2* /lede/15452* -shutterstock_* 017* 2-copy.jpeg?crop=0.* 9xw%3A* xh%3B0.* xw%2C0xh&resize=650%3A*&output-quality=55 + /articles/5c1aaea91854f30006cb2f1e/lede/1545253629235-shutterstock_106399017 2-copy.jpeg?crop=0.7749xw%3A1 xh%3B0.0391xw%2C0xh&resize=650%3A*&output-quality=55 + | + + So I will assume this was the issue. + + 2021-07-17 gorhill: + =================== + Added pure diff() method which natively deals with arrays and other minor + changes related to ES6. + +**/ + +'use strict'; + +(function(context) { + + // CodeMirror expect these globals: + context.DIFF_INSERT = 1; + context.DIFF_DELETE = -1; + context.DIFF_EQUAL = 0; + context.diff_match_patch = function(){}; + + context.diff_match_patch.prototype.diff_main = function(a, b) { + if ( a === b ) { return [ [ 0, a ] ]; } + const aa = a.match(/\n|[^\n]+\n?/g) || []; + const bb = b.match(/\n|[^\n]+\n?/g) || []; + const d = new Diff(aa, bb); + return d.editscript(); + }; + + context.diff_match_patch.prototype.diff = function(a, b) { + const d = new Diff(a, b); + return d.editscript(); + }; + + const eqlDefault = (a, b) => a === b; + + function Diff(a, b, eql = eqlDefault) { + this.a = a; + this.b = b; + this.eql = eql; + + this.moda = Array.apply(null, new Array(a.length)).map(true.valueOf, false); + this.modb = Array.apply(null, new Array(b.length)).map(true.valueOf, false); + + // just to save some allocations: + this.down = {}; + this.up = {}; + + this.lcs(0, a.length, 0, b.length); + } + + Diff.prototype.editscript = function Diff_editscript() { + const moda = this.moda, modb = this.modb; + var astart = 0, aend = moda.length; + var bstart = 0, bend = modb.length; + const result = []; + while (astart < aend || bstart < bend) { + if (astart < aend && bstart < bend) { + if (!moda[astart] && !modb[bstart]) { + result.push([ 0, this.a[astart] ]); + astart++; bstart++; + continue; + } else if (moda[astart] && modb[bstart]) { + result.push([ -1, this.a[astart] ]); + result.push([ 1, this.b[bstart] ]); + astart++; bstart++; + continue; + } + } + if (astart < aend && (bstart >= bend || moda[astart])) { + result.push([ -1, this.a[astart] ]); + astart++; + } + if (bstart < bend && (astart >= aend || modb[bstart])) { + result.push([ 1, this.b[bstart] ]); + bstart++; + } + } + return result; + }; + + Diff.prototype.lcs = function Diff_lcs(astart, aend, bstart, bend) { + const a = this.a, b = this.b, eql = this.eql; + // separate common head + while (astart < aend && bstart < bend && eql(a[astart], b[bstart])) { + astart++; bstart++; + } + // separate common tail + while (astart < aend && bstart < bend && eql(a[aend - 1], b[bend - 1])) { + aend--; bend--; + } + + if (astart === aend) { + // only insertions + while (bstart < bend) { + this.modb[bstart] = true; + bstart++; + } + } else if (bend === bstart) { + // only deletions + while (astart < aend) { + this.moda[astart] = true; + astart++; + } + } else { + const snake = this.snake(astart, aend, bstart, bend); + + this.lcs(astart, snake.x, bstart, snake.y); + this.lcs(snake.x, aend, snake.y, bend); + } + }; + + Diff.prototype.snake = function Diff_snake(astart, aend, bstart, bend) { + const a = this.a, b = this.b, eql = this.eql; + + const N = aend - astart; + const M = bend - bstart; + + const kdown = astart - bstart; + const kup = aend - bend; + + const delta = N - M; + const deltaOdd = delta & 1; + + const down = this.down; + down[kdown + 1] = astart; + const up = this.up; + up[kup - 1] = aend; + + const Dmax = (N + M + 1) / 2; + for (let D = 0; D <= Dmax; D++) { + // forward path + for (let k = kdown - D; k <= kdown + D; k += 2) { + let x; + if (k === kdown - D) { + x = down[k + 1]; // down + } else { + x = down[k - 1] + 1; // right + if ((k < kdown + D) && (down[k + 1] >= x)) { + x = down[k + 1]; // down + } + } + let y = x - k; + + while (x < aend && y < bend && eql(a[x], b[y])) { + x++; y++; // diagonal + } + down[k] = x; + + if (deltaOdd && (kup - D < k) && (k < kup + D) && + up[k] <= down[k]) { + return { + x: down[k], + y: down[k] - k, + // u: up[k], + // v: up[k] - k, + }; + } + } + + // reverse path + for (let k = kup - D; k <= kup + D; k += 2) { + let x; + if (k === kup + D) { + x = up[k - 1]; // up + } else { + x = up[k + 1] - 1; // left + if ((k > kup - D) && (up[k - 1] < x)) { + x = up[k - 1]; // up + } + } + let y = x - k; + + while (x > astart && y > bstart && eql(a[x - 1], b[y - 1])) { + x--; y--; // diagonal + } + up[k] = x; + + if (!deltaOdd && (kdown - D <= k) && (k <= kdown + D) && + up[k] <= down[k]) { + return { + x: down[k], + y: down[k] - k, + // u: up[k], + // v: up[k] - k, + }; + } + } + } + }; + + return Diff; +})(self); + + + + + + + + +/******************************************************************************* + + DO NOT: + - Remove the following code + - Add code beyond the following code + Reason: + - https://github.com/gorhill/uBlock/pull/3721 + - uBO never uses the return value from injected content scripts + +**/ + +void 0; diff --git a/src/lib/hsluv/LICENSE b/src/lib/hsluv/LICENSE new file mode 100644 index 0000000..8f3c1ae --- /dev/null +++ b/src/lib/hsluv/LICENSE @@ -0,0 +1,20 @@ +Copyright (c) 2012-2021 Alexei Boronine +Copyright (c) 2016 Florian Dormont + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/src/lib/hsluv/README b/src/lib/hsluv/README new file mode 100644 index 0000000..2337fdb --- /dev/null +++ b/src/lib/hsluv/README @@ -0,0 +1,3 @@ +Source: + +https://github.com/hsluv/hsluv/blob/9cd8574fad8874828b3a8119843527d62d79887a/javascript/dist/hsluv-0.1.0.min.js diff --git a/src/lib/hsluv/hsluv-0.1.0.min.js b/src/lib/hsluv/hsluv-0.1.0.min.js new file mode 100644 index 0000000..69092dc --- /dev/null +++ b/src/lib/hsluv/hsluv-0.1.0.min.js @@ -0,0 +1,8 @@ +(function() {function f(a){var c=[],b=Math.pow(a+16,3)/1560896;b=b>g?b:a/k;for(var d=0;3>d;){var e=d++,h=l[e][0],w=l[e][1];e=l[e][2];for(var x=0;2>x;){var y=x++,z=(632260*e-126452*w)*b+126452*y;c.push({b:(284517*h-94839*e)*b/z,a:((838422*e+769860*w+731718*h)*a*b-769860*y*a)/z})}}return c}function m(a){a=f(a);for(var c=Infinity,b=0;b<a.length;){var d=a[b];++b;c=Math.min(c,Math.abs(d.a)/Math.sqrt(Math.pow(d.b,2)+1))}return c} +function n(a,c){c=c/360*Math.PI*2;a=f(a);for(var b=Infinity,d=0;d<a.length;){var e=a[d];++d;e=e.a/(Math.sin(c)-e.b*Math.cos(c));0<=e&&(b=Math.min(b,e))}return b}function p(a,c){for(var b=0,d=0,e=a.length;d<e;){var h=d++;b+=a[h]*c[h]}return b}function q(a){return.0031308>=a?12.92*a:1.055*Math.pow(a,.4166666666666667)-.055}function r(a){return.04045<a?Math.pow((a+.055)/1.055,2.4):a/12.92}function t(a){return[q(p(l[0],a)),q(p(l[1],a)),q(p(l[2],a))]} +function u(a){a=[r(a[0]),r(a[1]),r(a[2])];return[p(v[0],a),p(v[1],a),p(v[2],a)]}function A(a){var c=a[0],b=a[1];a=c+15*b+3*a[2];0!=a?(c=4*c/a,a=9*b/a):a=c=NaN;b=b<=g?b/B*k:116*Math.pow(b/B,.3333333333333333)-16;return 0==b?[0,0,0]:[b,13*b*(c-C),13*b*(a-D)]}function E(a){var c=a[0];if(0==c)return[0,0,0];var b=a[1]/(13*c)+C;a=a[2]/(13*c)+D;c=8>=c?B*c/k:B*Math.pow((c+16)/116,3);b=0-9*c*b/((b-4)*a-b*a);return[b,c,(9*c-15*a*c-a*b)/(3*a)]} +function F(a){var c=a[0],b=a[1],d=a[2];a=Math.sqrt(b*b+d*d);1E-8>a?b=0:(b=180*Math.atan2(d,b)/Math.PI,0>b&&(b=360+b));return[c,a,b]}function G(a){var c=a[1],b=a[2]/360*2*Math.PI;return[a[0],Math.cos(b)*c,Math.sin(b)*c]}function H(a){var c=a[0],b=a[1];a=a[2];if(99.9999999<a)return[100,0,c];if(1E-8>a)return[0,0,c];b=n(a,c)/100*b;return[a,b,c]}function I(a){var c=a[0],b=a[1];a=a[2];if(99.9999999<c)return[a,0,100];if(1E-8>c)return[a,0,0];var d=n(c,a);return[a,b/d*100,c]} +function J(a){var c=a[0],b=a[1];a=a[2];if(99.9999999<a)return[100,0,c];if(1E-8>a)return[0,0,c];b=m(a)/100*b;return[a,b,c]}function K(a){var c=a[0],b=a[1];a=a[2];if(99.9999999<c)return[a,0,100];if(1E-8>c)return[a,0,0];var d=m(c);return[a,b/d*100,c]}function L(a){for(var c="#",b=0;3>b;){var d=b++;d=Math.round(255*a[d]);var e=d%16;c+=M.charAt((d-e)/16|0)+M.charAt(e)}return c} +function N(a){a=a.toLowerCase();for(var c=[],b=0;3>b;){var d=b++;c.push((16*M.indexOf(a.charAt(2*d+1))+M.indexOf(a.charAt(2*d+2)))/255)}return c}function O(a){return t(E(G(a)))}function P(a){return F(A(u(a)))}function Q(a){return O(H(a))}function R(a){return I(P(a))}function S(a){return O(J(a))}function T(a){return K(P(a))} +var l=[[3.240969941904521,-1.537383177570093,-.498610760293],[-.96924363628087,1.87596750150772,.041555057407175],[.055630079696993,-.20397695888897,1.056971514242878]],v=[[.41239079926595,.35758433938387,.18048078840183],[.21263900587151,.71516867876775,.072192315360733],[.019330818715591,.11919477979462,.95053215224966]],B=1,C=.19783000664283,D=.46831999493879,k=903.2962962,g=.0088564516,M="0123456789abcdef"; +window.hsluv={hsluvToRgb:Q,rgbToHsluv:R,hpluvToRgb:S,rgbToHpluv:T,hsluvToHex:function(a){return L(Q(a))},hexToHsluv:function(a){return R(N(a))},hpluvToHex:function(a){return L(S(a))},hexToHpluv:function(a){return T(N(a))},lchToHpluv:K,hpluvToLch:J,lchToHsluv:I,hsluvToLch:H,lchToLuv:G,luvToLch:F,xyzToLuv:A,luvToXyz:E,xyzToRgb:t,rgbToXyz:u,lchToRgb:O,rgbToLch:P};})(); diff --git a/src/lib/js-beautify/LICENSE b/src/lib/js-beautify/LICENSE new file mode 100644 index 0000000..153d126 --- /dev/null +++ b/src/lib/js-beautify/LICENSE @@ -0,0 +1,9 @@ +The MIT License (MIT) + +Copyright (c) 2007-2018 Einar Lielmanis, Liam Newman, and contributors. + +Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 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e(t,e){this._input=t,this._starting_pattern=null,this._match_pattern=null,this._until_pattern=null,this._until_after=!1,e&&(this._starting_pattern=this._input.get_regexp(e._starting_pattern,!0),this._match_pattern=this._input.get_regexp(e._match_pattern,!0),this._until_pattern=this._input.get_regexp(e._until_pattern),this._until_after=e._until_after)}e.prototype.read=function(){var t=this._input.read(this._starting_pattern);return this._starting_pattern&&!t||(t+=this._input.read(this._match_pattern,this._until_pattern,this._until_after)),t},e.prototype.read_match=function(){return this._input.match(this._match_pattern)},e.prototype.until_after=function(t){var e=this._create();return e._until_after=!0,e._until_pattern=this._input.get_regexp(t),e._update(),e},e.prototype.until=function(t){var e=this._create();return e._until_after=!1,e._until_pattern=this._input.get_regexp(t),e._update(),e},e.prototype.starting_with=function(t){var e=this._create();return e._starting_pattern=this._input.get_regexp(t,!0),e._update(),e},e.prototype.matching=function(t){var e=this._create();return e._match_pattern=this._input.get_regexp(t,!0),e._update(),e},e.prototype._create=function(){return new e(this._input,this)},e.prototype._update=function(){},t.exports.c=e},800:function(t,e,i){var n=i(348).c,_={django:!1,erb:!1,handlebars:!1,php:!1,smarty:!1};function s(t,e){n.call(this,t,e),this.__template_pattern=null,this._disabled=Object.assign({},_),this._excluded=Object.assign({},_),e&&(this.__template_pattern=this._input.get_regexp(e.__template_pattern),this._excluded=Object.assign(this._excluded,e._excluded),this._disabled=Object.assign(this._disabled,e._disabled));var i=new n(t);this.__patterns={handlebars_comment:i.starting_with(/{{!--/).until_after(/--}}/),handlebars_unescaped:i.starting_with(/{{{/).until_after(/}}}/),handlebars:i.starting_with(/{{/).until_after(/}}/),php:i.starting_with(/<\?(?:[= ]|php)/).until_after(/\?>/),erb:i.starting_with(/<%[^%]/).until_after(/[^%]%>/),django:i.starting_with(/{%/).until_after(/%}/),django_value:i.starting_with(/{{/).until_after(/}}/),django_comment:i.starting_with(/{#/).until_after(/#}/),smarty:i.starting_with(/{(?=[^}{\s\n])/).until_after(/[^\s\n]}/),smarty_comment:i.starting_with(/{\*/).until_after(/\*}/),smarty_literal:i.starting_with(/{literal}/).until_after(/{\/literal}/)}}s.prototype=new n,s.prototype._create=function(){return new s(this._input,this)},s.prototype._update=function(){this.__set_templated_pattern()},s.prototype.disable=function(t){var e=this._create();return e._disabled[t]=!0,e._update(),e},s.prototype.read_options=function(t){var e=this._create();for(var i in _)e._disabled[i]=-1===t.templating.indexOf(i);return e._update(),e},s.prototype.exclude=function(t){var e=this._create();return e._excluded[t]=!0,e._update(),e},s.prototype.read=function(){var t="";t=this._match_pattern?this._input.read(this._starting_pattern):this._input.read(this._starting_pattern,this.__template_pattern);for(var e=this._read_template();e;)this._match_pattern?e+=this._input.read(this._match_pattern):e+=this._input.readUntil(this.__template_pattern),t+=e,e=this._read_template();return this._until_after&&(t+=this._input.readUntilAfter(this._until_pattern)),t},s.prototype.__set_templated_pattern=function(){var t=[];this._disabled.php||t.push(this.__patterns.php._starting_pattern.source),this._disabled.handlebars||t.push(this.__patterns.handlebars._starting_pattern.source),this._disabled.erb||t.push(this.__patterns.erb._starting_pattern.source),this._disabled.django||(t.push(this.__patterns.django._starting_pattern.source),t.push(this.__patterns.django_value._starting_pattern.source),t.push(this.__patterns.django_comment._starting_pattern.source)),this._disabled.smarty||t.push(this.__patterns.smarty._starting_pattern.source),this._until_pattern&&t.push(this._until_pattern.source),this.__template_pattern=this._input.get_regexp("(?:"+t.join("|")+")")},s.prototype._read_template=function(){var t="",e=this._input.peek();if("<"===e){var i=this._input.peek(1);this._disabled.php||this._excluded.php||"?"!==i||(t=t||this.__patterns.php.read()),this._disabled.erb||this._excluded.erb||"%"!==i||(t=t||this.__patterns.erb.read())}else"{"===e&&(this._disabled.handlebars||this._excluded.handlebars||(t=(t=(t=t||this.__patterns.handlebars_comment.read())||this.__patterns.handlebars_unescaped.read())||this.__patterns.handlebars.read()),this._disabled.django||(this._excluded.django||this._excluded.handlebars||(t=t||this.__patterns.django_value.read()),this._excluded.django||(t=(t=t||this.__patterns.django_comment.read())||this.__patterns.django.read())),this._disabled.smarty||this._disabled.django&&this._disabled.handlebars&&(t=(t=(t=t||this.__patterns.smarty_comment.read())||this.__patterns.smarty_literal.read())||this.__patterns.smarty.read()));return t},t.exports.A=s},650:function(t){t.exports.W=function(t,e,i,n){this.type=t,this.text=e,this.comments_before=null,this.newlines=i||0,this.whitespace_before=n||"",this.parent=null,this.next=null,this.previous=null,this.opened=null,this.closed=null,this.directives=null}},147:function(t,e,i){var n=i(418).g,_=i(650).W,s=i(134).q,a=i(401).d,u={START:"TK_START",RAW:"TK_RAW",EOF:"TK_EOF"},r=function(t,e){this._input=new n(t),this._options=e||{},this.__tokens=null,this._patterns={},this._patterns.whitespace=new a(this._input)};r.prototype.tokenize=function(){var t;this._input.restart(),this.__tokens=new s,this._reset();for(var e=new _(u.START,""),i=null,n=[],a=new s;e.type!==u.EOF;){for(t=this._get_next_token(e,i);this._is_comment(t);)a.add(t),t=this._get_next_token(e,i);a.isEmpty()||(t.comments_before=a,a=new s),t.parent=i,this._is_opening(t)?(n.push(i),i=t):i&&this._is_closing(t,i)&&(t.opened=i,i.closed=t,i=n.pop(),t.parent=i),t.previous=e,e.next=t,this.__tokens.add(t),e=t}return this.__tokens},r.prototype._is_first_token=function(){return this.__tokens.isEmpty()},r.prototype._reset=function(){},r.prototype._get_next_token=function(t,e){this._readWhitespace();var i=this._input.read(/.+/g);return i?this._create_token(u.RAW,i):this._create_token(u.EOF,"")},r.prototype._is_comment=function(t){return!1},r.prototype._is_opening=function(t){return!1},r.prototype._is_closing=function(t,e){return!1},r.prototype._create_token=function(t,e){return new _(t,e,this._patterns.whitespace.newline_count,this._patterns.whitespace.whitespace_before_token)},r.prototype._readWhitespace=function(){return this._patterns.whitespace.read()},t.exports.d=r,t.exports.o=u},134:function(t){function e(t){this.__tokens=[],this.__tokens_length=this.__tokens.length,this.__position=0,this.__parent_token=t}e.prototype.restart=function(){this.__position=0},e.prototype.isEmpty=function(){return 0===this.__tokens_length},e.prototype.hasNext=function(){return this.__position<this.__tokens_length},e.prototype.next=function(){var t=null;return this.hasNext()&&(t=this.__tokens[this.__position],this.__position+=1),t},e.prototype.peek=function(t){var e=null;return t=t||0,(t+=this.__position)>=0&&t<this.__tokens_length&&(e=this.__tokens[t]),e},e.prototype.add=function(t){this.__parent_token&&(t.parent=this.__parent_token),this.__tokens.push(t),this.__tokens_length+=1},t.exports.q=e},401:function(t,e,i){var n=i(348).c;function _(t,e){n.call(this,t,e),e?this._line_regexp=this._input.get_regexp(e._line_regexp):this.__set_whitespace_patterns("",""),this.newline_count=0,this.whitespace_before_token=""}_.prototype=new n,_.prototype.__set_whitespace_patterns=function(t,e){t+="\\t ",e+="\\n\\r",this._match_pattern=this._input.get_regexp("["+t+e+"]+",!0),this._newline_regexp=this._input.get_regexp("\\r\\n|["+e+"]")},_.prototype.read=function(){this.newline_count=0,this.whitespace_before_token="";var t=this._input.read(this._match_pattern);if(" "===t)this.whitespace_before_token=" ";else if(t){var e=this.__split(this._newline_regexp,t);this.newline_count=e.length-1,this.whitespace_before_token=e[this.newline_count]}return t},_.prototype.matching=function(t,e){var i=this._create();return i.__set_whitespace_patterns(t,e),i._update(),i},_.prototype._create=function(){return new _(this._input,this)},_.prototype.__split=function(t,e){t.lastIndex=0;for(var i=0,n=[],_=t.exec(e);_;)n.push(e.substring(i,_.index)),i=_.index+_[0].length,_=t.exec(e);return i<e.length?n.push(e.substring(i,e.length)):n.push(""),n},t.exports.d=_},434:function(t,e,i){var n=i(492).E,_=i(558).r,s=i(418).g,a=new(0,i(7).t)(/\/\*/,/\*\//),u=/\r\n|[\r\n]/,r=/\r\n|[\r\n]/g,o=/\s/,h=/(?:\s|\n)+/g,p=/\/\*(?:[\s\S]*?)((?:\*\/)|$)/g,l=/\/\/(?:[^\n\r\u2028\u2029]*)/g;function c(t,e){this._source_text=t||"",this._options=new n(e),this._ch=null,this._input=null,this.NESTED_AT_RULE={"@page":!0,"@font-face":!0,"@keyframes":!0,"@media":!0,"@supports":!0,"@document":!0},this.CONDITIONAL_GROUP_RULE={"@media":!0,"@supports":!0,"@document":!0},this.NON_SEMICOLON_NEWLINE_PROPERTY=["grid-template-areas","grid-template"]}c.prototype.eatString=function(t){var e="";for(this._ch=this._input.next();this._ch;){if(e+=this._ch,"\\"===this._ch)e+=this._input.next();else if(-1!==t.indexOf(this._ch)||"\n"===this._ch)break;this._ch=this._input.next()}return e},c.prototype.eatWhitespace=function(t){for(var e=o.test(this._input.peek()),i=0;o.test(this._input.peek());)this._ch=this._input.next(),t&&"\n"===this._ch&&(0===i||i<this._options.max_preserve_newlines)&&(i++,this._output.add_new_line(!0));return e},c.prototype.foundNestedPseudoClass=function(){for(var t=0,e=1,i=this._input.peek(e);i;){if("{"===i)return!0;if("("===i)t+=1;else if(")"===i){if(0===t)return!1;t-=1}else if(";"===i||"}"===i)return!1;e++,i=this._input.peek(e)}return!1},c.prototype.print_string=function(t){this._output.set_indent(this._indentLevel),this._output.non_breaking_space=!0,this._output.add_token(t)},c.prototype.preserveSingleSpace=function(t){t&&(this._output.space_before_token=!0)},c.prototype.indent=function(){this._indentLevel++},c.prototype.outdent=function(){this._indentLevel>0&&this._indentLevel--},c.prototype.beautify=function(){if(this._options.disabled)return this._source_text;var t=this._source_text,e=this._options.eol;"auto"===e&&(e="\n",t&&u.test(t||"")&&(e=t.match(u)[0]));var i=(t=t.replace(r,"\n")).match(/^[\t ]*/)[0];this._output=new _(this._options,i),this._input=new s(t),this._indentLevel=0,this._nestedLevel=0,this._ch=null;for(var n,c,f=0,d=!1,g=!1,b=!1,m=!1,k=!1,w=!1,y=this._ch,x=!1;n=""!==this._input.read(h),c=y,this._ch=this._input.next(),"\\"===this._ch&&this._input.hasNext()&&(this._ch+=this._input.next()),y=this._ch,this._ch;)if("/"===this._ch&&"*"===this._input.peek()){this._output.add_new_line(),this._input.back();var v=this._input.read(p),E=a.get_directives(v);E&&"start"===E.ignore&&(v+=a.readIgnored(this._input)),this.print_string(v),this.eatWhitespace(!0),this._output.add_new_line()}else if("/"===this._ch&&"/"===this._input.peek())this._output.space_before_token=!0,this._input.back(),this.print_string(this._input.read(l)),this.eatWhitespace(!0);else if("@"===this._ch||"$"===this._ch)if(this.preserveSingleSpace(n),"{"===this._input.peek())this.print_string(this._ch+this.eatString("}"));else{this.print_string(this._ch);var O=this._input.peekUntilAfter(/[: ,;{}()[\]\/='"]/g);O.match(/[ :]$/)&&(O=this.eatString(": ").replace(/\s$/,""),this.print_string(O),this._output.space_before_token=!0),"extend"===(O=O.replace(/\s$/,""))?m=!0:"import"===O&&(k=!0),O in this.NESTED_AT_RULE?(this._nestedLevel+=1,O in this.CONDITIONAL_GROUP_RULE&&(b=!0)):d||0!==f||-1===O.indexOf(":")||(g=!0,this.indent())}else if("#"===this._ch&&"{"===this._input.peek())this.preserveSingleSpace(n),this.print_string(this._ch+this.eatString("}"));else if("{"===this._ch)g&&(g=!1,this.outdent()),b?(b=!1,d=this._indentLevel>=this._nestedLevel):d=this._indentLevel>=this._nestedLevel-1,this._options.newline_between_rules&&d&&this._output.previous_line&&"{"!==this._output.previous_line.item(-1)&&this._output.ensure_empty_line_above("/",","),this._output.space_before_token=!0,"expand"===this._options.brace_style?(this._output.add_new_line(),this.print_string(this._ch),this.indent(),this._output.set_indent(this._indentLevel)):("("===c?this._output.space_before_token=!1:","!==c&&this.indent(),this.print_string(this._ch)),this.eatWhitespace(!0),this._output.add_new_line();else if("}"===this._ch)this.outdent(),this._output.add_new_line(),"{"===c&&this._output.trim(!0),k=!1,m=!1,g&&(this.outdent(),g=!1),this.print_string(this._ch),d=!1,this._nestedLevel&&this._nestedLevel--,this.eatWhitespace(!0),this._output.add_new_line(),this._options.newline_between_rules&&!this._output.just_added_blankline()&&"}"!==this._input.peek()&&this._output.add_new_line(!0),")"===this._input.peek()&&(this._output.trim(!0),"expand"===this._options.brace_style&&this._output.add_new_line(!0));else if(":"===this._ch){for(var T=0;T<this.NON_SEMICOLON_NEWLINE_PROPERTY.length;T++)if(this._input.lookBack(this.NON_SEMICOLON_NEWLINE_PROPERTY[T])){x=!0;break}!d&&!b||this._input.lookBack("&")||this.foundNestedPseudoClass()||this._input.lookBack("(")||m||0!==f?(this._input.lookBack(" ")&&(this._output.space_before_token=!0),":"===this._input.peek()?(this._ch=this._input.next(),this.print_string("::")):this.print_string(":")):(this.print_string(":"),g||(g=!0,this._output.space_before_token=!0,this.eatWhitespace(!0),this.indent()))}else if('"'===this._ch||"'"===this._ch){var R='"'===c||"'"===c;this.preserveSingleSpace(R||n),this.print_string(this._ch+this.eatString(this._ch)),this.eatWhitespace(!0)}else if(";"===this._ch)x=!1,0===f?(g&&(this.outdent(),g=!1),m=!1,k=!1,this.print_string(this._ch),this.eatWhitespace(!0),"/"!==this._input.peek()&&this._output.add_new_line()):(this.print_string(this._ch),this.eatWhitespace(!0),this._output.space_before_token=!0);else if("("===this._ch)if(this._input.lookBack("url"))this.print_string(this._ch),this.eatWhitespace(),f++,this.indent(),this._ch=this._input.next(),")"===this._ch||'"'===this._ch||"'"===this._ch?this._input.back():this._ch&&(this.print_string(this._ch+this.eatString(")")),f&&(f--,this.outdent()));else{var A=!1;this._input.lookBack("with")&&(A=!0),this.preserveSingleSpace(n||A),this.print_string(this._ch),g&&"$"===c&&this._options.selector_separator_newline?(this._output.add_new_line(),w=!0):(this.eatWhitespace(),f++,this.indent())}else if(")"===this._ch)f&&(f--,this.outdent()),w&&";"===this._input.peek()&&this._options.selector_separator_newline&&(w=!1,this.outdent(),this._output.add_new_line()),this.print_string(this._ch);else if(","===this._ch)this.print_string(this._ch),this.eatWhitespace(!0),!this._options.selector_separator_newline||g&&!w||0!==f||k||m?this._output.space_before_token=!0:this._output.add_new_line();else if(">"!==this._ch&&"+"!==this._ch&&"~"!==this._ch||g||0!==f)if("]"===this._ch)this.print_string(this._ch);else if("["===this._ch)this.preserveSingleSpace(n),this.print_string(this._ch);else if("="===this._ch)this.eatWhitespace(),this.print_string("="),o.test(this._ch)&&(this._ch="");else if("!"!==this._ch||this._input.lookBack("\\")){var N='"'===c||"'"===c;this.preserveSingleSpace(N||n),this.print_string(this._ch),!this._output.just_added_newline()&&"\n"===this._input.peek()&&x&&this._output.add_new_line()}else this._output.space_before_token=!0,this.print_string(this._ch);else this._options.space_around_combinator?(this._output.space_before_token=!0,this.print_string(this._ch),this._output.space_before_token=!0):(this.print_string(this._ch),this.eatWhitespace(),this._ch&&o.test(this._ch)&&(this._ch=""));return this._output.get_code(e)},t.exports.K=c},968:function(t,e,i){var n=i(434).K,_=i(492).E;t.exports=function(t,e){return new n(t,e).beautify()},t.exports.defaultOptions=function(){return new _}},492:function(t,e,i){var n=i(915).Ei;function _(t){n.call(this,t,"css"),this.selector_separator_newline=this._get_boolean("selector_separator_newline",!0),this.newline_between_rules=this._get_boolean("newline_between_rules",!0);var e=this._get_boolean("space_around_selector_separator");this.space_around_combinator=this._get_boolean("space_around_combinator")||e;var i=this._get_selection_list("brace_style",["collapse","expand","end-expand","none","preserve-inline"]);this.brace_style="collapse";for(var _=0;_<i.length;_++)"expand"!==i[_]?this.brace_style="collapse":this.brace_style=i[_]}_.prototype=new n,t.exports.E=_},843:function(t,e,i){var n=i(402).E,_=i(558).r,s=i(41).d,a=i(41).o,u=/\r\n|[\r\n]/,r=/\r\n|[\r\n]/g,o=function(t,e){this.indent_level=0,this.alignment_size=0,this.max_preserve_newlines=t.max_preserve_newlines,this.preserve_newlines=t.preserve_newlines,this._output=new _(t,e)};o.prototype.current_line_has_match=function(t){return this._output.current_line.has_match(t)},o.prototype.set_space_before_token=function(t,e){this._output.space_before_token=t,this._output.non_breaking_space=e},o.prototype.set_wrap_point=function(){this._output.set_indent(this.indent_level,this.alignment_size),this._output.set_wrap_point()},o.prototype.add_raw_token=function(t){this._output.add_raw_token(t)},o.prototype.print_preserved_newlines=function(t){var e=0;t.type!==a.TEXT&&t.previous.type!==a.TEXT&&(e=t.newlines?1:0),this.preserve_newlines&&(e=t.newlines<this.max_preserve_newlines+1?t.newlines:this.max_preserve_newlines+1);for(var i=0;i<e;i++)this.print_newline(i>0);return 0!==e},o.prototype.traverse_whitespace=function(t){return!(!t.whitespace_before&&!t.newlines||(this.print_preserved_newlines(t)||(this._output.space_before_token=!0),0))},o.prototype.previous_token_wrapped=function(){return this._output.previous_token_wrapped},o.prototype.print_newline=function(t){this._output.add_new_line(t)},o.prototype.print_token=function(t){t.text&&(this._output.set_indent(this.indent_level,this.alignment_size),this._output.add_token(t.text))},o.prototype.indent=function(){this.indent_level++},o.prototype.get_full_indent=function(t){return(t=this.indent_level+(t||0))<1?"":this._output.get_indent_string(t)};function h(t,e){return-1!==e.indexOf(t)}function p(t,e,i){this.parent=t||null,this.tag=e?e.tag_name:"",this.indent_level=i||0,this.parser_token=e||null}function l(t){this._printer=t,this._current_frame=null}function c(t,e,i,_){this._source_text=t||"",e=e||{},this._js_beautify=i,this._css_beautify=_,this._tag_stack=null;var s=new n(e,"html");this._options=s,this._is_wrap_attributes_force="force"===this._options.wrap_attributes.substr(0,"force".length),this._is_wrap_attributes_force_expand_multiline="force-expand-multiline"===this._options.wrap_attributes,this._is_wrap_attributes_force_aligned="force-aligned"===this._options.wrap_attributes,this._is_wrap_attributes_aligned_multiple="aligned-multiple"===this._options.wrap_attributes,this._is_wrap_attributes_preserve="preserve"===this._options.wrap_attributes.substr(0,"preserve".length),this._is_wrap_attributes_preserve_aligned="preserve-aligned"===this._options.wrap_attributes}l.prototype.get_parser_token=function(){return this._current_frame?this._current_frame.parser_token:null},l.prototype.record_tag=function(t){var e=new p(this._current_frame,t,this._printer.indent_level);this._current_frame=e},l.prototype._try_pop_frame=function(t){var e=null;return t&&(e=t.parser_token,this._printer.indent_level=t.indent_level,this._current_frame=t.parent),e},l.prototype._get_frame=function(t,e){for(var i=this._current_frame;i&&-1===t.indexOf(i.tag);){if(e&&-1!==e.indexOf(i.tag)){i=null;break}i=i.parent}return i},l.prototype.try_pop=function(t,e){var i=this._get_frame([t],e);return this._try_pop_frame(i)},l.prototype.indent_to_tag=function(t){var e=this._get_frame(t);e&&(this._printer.indent_level=e.indent_level)},c.prototype.beautify=function(){if(this._options.disabled)return this._source_text;var t=this._source_text,e=this._options.eol;"auto"===this._options.eol&&(e="\n",t&&u.test(t)&&(e=t.match(u)[0]));var i=(t=t.replace(r,"\n")).match(/^[\t ]*/)[0],n={text:"",type:""},_=new f,h=new o(this._options,i),p=new s(t,this._options).tokenize();this._tag_stack=new l(h);for(var c=null,d=p.next();d.type!==a.EOF;)d.type===a.TAG_OPEN||d.type===a.COMMENT?_=c=this._handle_tag_open(h,d,_,n):d.type===a.ATTRIBUTE||d.type===a.EQUALS||d.type===a.VALUE||d.type===a.TEXT&&!_.tag_complete?c=this._handle_inside_tag(h,d,_,p):d.type===a.TAG_CLOSE?c=this._handle_tag_close(h,d,_):d.type===a.TEXT?c=this._handle_text(h,d,_):h.add_raw_token(d),n=c,d=p.next();return h._output.get_code(e)},c.prototype._handle_tag_close=function(t,e,i){var n={text:e.text,type:e.type};return t.alignment_size=0,i.tag_complete=!0,t.set_space_before_token(e.newlines||""!==e.whitespace_before,!0),i.is_unformatted?t.add_raw_token(e):("<"===i.tag_start_char&&(t.set_space_before_token("/"===e.text[0],!0),this._is_wrap_attributes_force_expand_multiline&&i.has_wrapped_attrs&&t.print_newline(!1)),t.print_token(e)),!i.indent_content||i.is_unformatted||i.is_content_unformatted||(t.indent(),i.indent_content=!1),i.is_inline_element||i.is_unformatted||i.is_content_unformatted||t.set_wrap_point(),n},c.prototype._handle_inside_tag=function(t,e,i,n){var _=i.has_wrapped_attrs,s={text:e.text,type:e.type};if(t.set_space_before_token(e.newlines||""!==e.whitespace_before,!0),i.is_unformatted)t.add_raw_token(e);else if("{"===i.tag_start_char&&e.type===a.TEXT)t.print_preserved_newlines(e)?(e.newlines=0,t.add_raw_token(e)):t.print_token(e);else{if(e.type===a.ATTRIBUTE?(t.set_space_before_token(!0),i.attr_count+=1):(e.type===a.EQUALS||e.type===a.VALUE&&e.previous.type===a.EQUALS)&&t.set_space_before_token(!1),e.type===a.ATTRIBUTE&&"<"===i.tag_start_char&&((this._is_wrap_attributes_preserve||this._is_wrap_attributes_preserve_aligned)&&(t.traverse_whitespace(e),_=_||0!==e.newlines),this._is_wrap_attributes_force)){var u=i.attr_count>1;if(this._is_wrap_attributes_force_expand_multiline&&1===i.attr_count){var r,o=!0,h=0;do{if((r=n.peek(h)).type===a.ATTRIBUTE){o=!1;break}h+=1}while(h<4&&r.type!==a.EOF&&r.type!==a.TAG_CLOSE);u=!o}u&&(t.print_newline(!1),_=!0)}t.print_token(e),_=_||t.previous_token_wrapped(),i.has_wrapped_attrs=_}return s},c.prototype._handle_text=function(t,e,i){var n={text:e.text,type:"TK_CONTENT"};return i.custom_beautifier_name?this._print_custom_beatifier_text(t,e,i):i.is_unformatted||i.is_content_unformatted?t.add_raw_token(e):(t.traverse_whitespace(e),t.print_token(e)),n},c.prototype._print_custom_beatifier_text=function(t,e,i){var n=this;if(""!==e.text){var _,s=e.text,a=1,u="",r="";"javascript"===i.custom_beautifier_name&&"function"==typeof this._js_beautify?_=this._js_beautify:"css"===i.custom_beautifier_name&&"function"==typeof this._css_beautify?_=this._css_beautify:"html"===i.custom_beautifier_name&&(_=function(t,e){return new c(t,e,n._js_beautify,n._css_beautify).beautify()}),"keep"===this._options.indent_scripts?a=0:"separate"===this._options.indent_scripts&&(a=-t.indent_level);var o=t.get_full_indent(a);if(s=s.replace(/\n[ \t]*$/,""),"html"!==i.custom_beautifier_name&&"<"===s[0]&&s.match(/^(<!--|<!\[CDATA\[)/)){var h=/^(<!--[^\n]*|<!\[CDATA\[)(\n?)([ \t\n]*)([\s\S]*)(-->|]]>)$/.exec(s);if(!h)return void t.add_raw_token(e);u=o+h[1]+"\n",s=h[4],h[5]&&(r=o+h[5]),s=s.replace(/\n[ \t]*$/,""),(h[2]||-1!==h[3].indexOf("\n"))&&(h=h[3].match(/[ \t]+$/))&&(e.whitespace_before=h[0])}if(s)if(_){var p=function(){this.eol="\n"};p.prototype=this._options.raw_options,s=_(o+s,new p)}else{var l=e.whitespace_before;l&&(s=s.replace(new RegExp("\n("+l+")?","g"),"\n")),s=o+s.replace(/\n/g,"\n"+o)}u&&(s=s?u+s+"\n"+r:u+r),t.print_newline(!1),s&&(e.text=s,e.whitespace_before="",e.newlines=0,t.add_raw_token(e),t.print_newline(!0))}},c.prototype._handle_tag_open=function(t,e,i,n){var _=this._get_tag_open_token(e);return!i.is_unformatted&&!i.is_content_unformatted||i.is_empty_element||e.type!==a.TAG_OPEN||0!==e.text.indexOf("</")?(t.traverse_whitespace(e),this._set_tag_position(t,e,_,i,n),_.is_inline_element||t.set_wrap_point(),t.print_token(e)):(t.add_raw_token(e),_.start_tag_token=this._tag_stack.try_pop(_.tag_name)),(this._is_wrap_attributes_force_aligned||this._is_wrap_attributes_aligned_multiple||this._is_wrap_attributes_preserve_aligned)&&(_.alignment_size=e.text.length+1),_.tag_complete||_.is_unformatted||(t.alignment_size=_.alignment_size),_};var f=function(t,e){if(this.parent=t||null,this.text="",this.type="TK_TAG_OPEN",this.tag_name="",this.is_inline_element=!1,this.is_unformatted=!1,this.is_content_unformatted=!1,this.is_empty_element=!1,this.is_start_tag=!1,this.is_end_tag=!1,this.indent_content=!1,this.multiline_content=!1,this.custom_beautifier_name=null,this.start_tag_token=null,this.attr_count=0,this.has_wrapped_attrs=!1,this.alignment_size=0,this.tag_complete=!1,this.tag_start_char="",this.tag_check="",e){var i;this.tag_start_char=e.text[0],this.text=e.text,"<"===this.tag_start_char?(i=e.text.match(/^<([^\s>]*)/),this.tag_check=i?i[1]:""):(i=e.text.match(/^{{~?(?:[\^]|#\*?)?([^\s}]+)/),this.tag_check=i?i[1]:"",(e.text.startsWith("{{#>")||e.text.startsWith("{{~#>"))&&">"===this.tag_check[0]&&(">"===this.tag_check&&null!==e.next?this.tag_check=e.next.text.split(" ")[0]:this.tag_check=e.text.split(">")[1])),this.tag_check=this.tag_check.toLowerCase(),e.type===a.COMMENT&&(this.tag_complete=!0),this.is_start_tag="/"!==this.tag_check.charAt(0),this.tag_name=this.is_start_tag?this.tag_check:this.tag_check.substr(1),this.is_end_tag=!this.is_start_tag||e.closed&&"/>"===e.closed.text;var n=2;"{"===this.tag_start_char&&this.text.length>=3&&"~"===this.text.charAt(2)&&(n=3),this.is_end_tag=this.is_end_tag||"{"===this.tag_start_char&&(this.text.length<3||/[^#\^]/.test(this.text.charAt(n)))}else this.tag_complete=!0};c.prototype._get_tag_open_token=function(t){var e=new f(this._tag_stack.get_parser_token(),t);return e.alignment_size=this._options.wrap_attributes_indent_size,e.is_end_tag=e.is_end_tag||h(e.tag_check,this._options.void_elements),e.is_empty_element=e.tag_complete||e.is_start_tag&&e.is_end_tag,e.is_unformatted=!e.tag_complete&&h(e.tag_check,this._options.unformatted),e.is_content_unformatted=!e.is_empty_element&&h(e.tag_check,this._options.content_unformatted),e.is_inline_element=h(e.tag_name,this._options.inline)||e.tag_name.includes("-")||"{"===e.tag_start_char,e},c.prototype._set_tag_position=function(t,e,i,n,_){if(i.is_empty_element||(i.is_end_tag?i.start_tag_token=this._tag_stack.try_pop(i.tag_name):(this._do_optional_end_element(i)&&(i.is_inline_element||t.print_newline(!1)),this._tag_stack.record_tag(i),"script"!==i.tag_name&&"style"!==i.tag_name||i.is_unformatted||i.is_content_unformatted||(i.custom_beautifier_name=function(t,e){var i=null,n=null;return e.closed?("script"===t?i="text/javascript":"style"===t&&(i="text/css"),i=function(t){for(var e=null,i=t.next;i.type!==a.EOF&&t.closed!==i;){if(i.type===a.ATTRIBUTE&&"type"===i.text){i.next&&i.next.type===a.EQUALS&&i.next.next&&i.next.next.type===a.VALUE&&(e=i.next.next.text);break}i=i.next}return e}(e)||i,i.search("text/css")>-1?n="css":i.search(/module|((text|application|dojo)\/(x-)?(javascript|ecmascript|jscript|livescript|(ld\+)?json|method|aspect))/)>-1?n="javascript":i.search(/(text|application|dojo)\/(x-)?(html)/)>-1?n="html":i.search(/test\/null/)>-1&&(n="null"),n):null}(i.tag_check,e)))),h(i.tag_check,this._options.extra_liners)&&(t.print_newline(!1),t._output.just_added_blankline()||t.print_newline(!0)),i.is_empty_element)"{"===i.tag_start_char&&"else"===i.tag_check&&(this._tag_stack.indent_to_tag(["if","unless","each"]),i.indent_content=!0,t.current_line_has_match(/{{#if/)||t.print_newline(!1)),"!--"===i.tag_name&&_.type===a.TAG_CLOSE&&n.is_end_tag&&-1===i.text.indexOf("\n")||(i.is_inline_element||i.is_unformatted||t.print_newline(!1),this._calcluate_parent_multiline(t,i));else if(i.is_end_tag){var s=!1;s=(s=i.start_tag_token&&i.start_tag_token.multiline_content)||!i.is_inline_element&&!(n.is_inline_element||n.is_unformatted)&&!(_.type===a.TAG_CLOSE&&i.start_tag_token===n)&&"TK_CONTENT"!==_.type,(i.is_content_unformatted||i.is_unformatted)&&(s=!1),s&&t.print_newline(!1)}else i.indent_content=!i.custom_beautifier_name,"<"===i.tag_start_char&&("html"===i.tag_name?i.indent_content=this._options.indent_inner_html:"head"===i.tag_name?i.indent_content=this._options.indent_head_inner_html:"body"===i.tag_name&&(i.indent_content=this._options.indent_body_inner_html)),i.is_inline_element||i.is_unformatted||"TK_CONTENT"===_.type&&!i.is_content_unformatted||t.print_newline(!1),this._calcluate_parent_multiline(t,i)},c.prototype._calcluate_parent_multiline=function(t,e){!e.parent||!t._output.just_added_newline()||(e.is_inline_element||e.is_unformatted)&&e.parent.is_inline_element||(e.parent.multiline_content=!0)};var d=["address","article","aside","blockquote","details","div","dl","fieldset","figcaption","figure","footer","form","h1","h2","h3","h4","h5","h6","header","hr","main","nav","ol","p","pre","section","table","ul"],g=["a","audio","del","ins","map","noscript","video"];c.prototype._do_optional_end_element=function(t){var e=null;if(!t.is_empty_element&&t.is_start_tag&&t.parent){if("body"===t.tag_name)e=e||this._tag_stack.try_pop("head");else if("li"===t.tag_name)e=e||this._tag_stack.try_pop("li",["ol","ul"]);else if("dd"===t.tag_name||"dt"===t.tag_name)e=(e=e||this._tag_stack.try_pop("dt",["dl"]))||this._tag_stack.try_pop("dd",["dl"]);else if("p"===t.parent.tag_name&&-1!==d.indexOf(t.tag_name)){var i=t.parent.parent;i&&-1!==g.indexOf(i.tag_name)||(e=e||this._tag_stack.try_pop("p"))}else"rp"===t.tag_name||"rt"===t.tag_name?e=(e=e||this._tag_stack.try_pop("rt",["ruby","rtc"]))||this._tag_stack.try_pop("rp",["ruby","rtc"]):"optgroup"===t.tag_name?e=e||this._tag_stack.try_pop("optgroup",["select"]):"option"===t.tag_name?e=e||this._tag_stack.try_pop("option",["select","datalist","optgroup"]):"colgroup"===t.tag_name?e=e||this._tag_stack.try_pop("caption",["table"]):"thead"===t.tag_name?e=(e=e||this._tag_stack.try_pop("caption",["table"]))||this._tag_stack.try_pop("colgroup",["table"]):"tbody"===t.tag_name||"tfoot"===t.tag_name?e=(e=(e=(e=e||this._tag_stack.try_pop("caption",["table"]))||this._tag_stack.try_pop("colgroup",["table"]))||this._tag_stack.try_pop("thead",["table"]))||this._tag_stack.try_pop("tbody",["table"]):"tr"===t.tag_name?e=(e=(e=e||this._tag_stack.try_pop("caption",["table"]))||this._tag_stack.try_pop("colgroup",["table"]))||this._tag_stack.try_pop("tr",["table","thead","tbody","tfoot"]):"th"!==t.tag_name&&"td"!==t.tag_name||(e=(e=e||this._tag_stack.try_pop("td",["table","thead","tbody","tfoot","tr"]))||this._tag_stack.try_pop("th",["table","thead","tbody","tfoot","tr"]));return t.parent=this._tag_stack.get_parser_token(),e}},t.exports.K=c},391:function(t,e,i){var n=i(843).K,_=i(402).E;t.exports=function(t,e,i,_){return new n(t,e,i,_).beautify()},t.exports.defaultOptions=function(){return new _}},402:function(t,e,i){var n=i(915).Ei;function _(t){n.call(this,t,"html"),1===this.templating.length&&"auto"===this.templating[0]&&(this.templating=["django","erb","handlebars","php"]),this.indent_inner_html=this._get_boolean("indent_inner_html"),this.indent_body_inner_html=this._get_boolean("indent_body_inner_html",!0),this.indent_head_inner_html=this._get_boolean("indent_head_inner_html",!0),this.indent_handlebars=this._get_boolean("indent_handlebars",!0),this.wrap_attributes=this._get_selection("wrap_attributes",["auto","force","force-aligned","force-expand-multiline","aligned-multiple","preserve","preserve-aligned"]),this.wrap_attributes_indent_size=this._get_number("wrap_attributes_indent_size",this.indent_size),this.extra_liners=this._get_array("extra_liners",["head","body","/html"]),this.inline=this._get_array("inline",["a","abbr","area","audio","b","bdi","bdo","br","button","canvas","cite","code","data","datalist","del","dfn","em","embed","i","iframe","img","input","ins","kbd","keygen","label","map","mark","math","meter","noscript","object","output","progress","q","ruby","s","samp","select","small","span","strong","sub","sup","svg","template","textarea","time","u","var","video","wbr","text","acronym","big","strike","tt"]),this.void_elements=this._get_array("void_elements",["area","base","br","col","embed","hr","img","input","keygen","link","menuitem","meta","param","source","track","wbr","!doctype","?xml","basefont","isindex"]),this.unformatted=this._get_array("unformatted",[]),this.content_unformatted=this._get_array("content_unformatted",["pre","textarea"]),this.unformatted_content_delimiter=this._get_characters("unformatted_content_delimiter"),this.indent_scripts=this._get_selection("indent_scripts",["normal","keep","separate"])}_.prototype=new n,t.exports.E=_},41:function(t,e,i){var n=i(147).d,_=i(147).o,s=i(7).t,a=i(800).A,u=i(348).c,r={TAG_OPEN:"TK_TAG_OPEN",TAG_CLOSE:"TK_TAG_CLOSE",ATTRIBUTE:"TK_ATTRIBUTE",EQUALS:"TK_EQUALS",VALUE:"TK_VALUE",COMMENT:"TK_COMMENT",TEXT:"TK_TEXT",UNKNOWN:"TK_UNKNOWN",START:_.START,RAW:_.RAW,EOF:_.EOF},o=new s(/<\!--/,/-->/),h=function(t,e){n.call(this,t,e),this._current_tag_name="";var i=new a(this._input).read_options(this._options),_=new u(this._input);if(this.__patterns={word:i.until(/[\n\r\t <]/),single_quote:i.until_after(/'/),double_quote:i.until_after(/"/),attribute:i.until(/[\n\r\t =>]|\/>/),element_name:i.until(/[\n\r\t >\/]/),handlebars_comment:_.starting_with(/{{!--/).until_after(/--}}/),handlebars:_.starting_with(/{{/).until_after(/}}/),handlebars_open:_.until(/[\n\r\t }]/),handlebars_raw_close:_.until(/}}/),comment:_.starting_with(/<!--/).until_after(/-->/),cdata:_.starting_with(/<!\[CDATA\[/).until_after(/]]>/),conditional_comment:_.starting_with(/<!\[/).until_after(/]>/),processing:_.starting_with(/<\?/).until_after(/\?>/)},this._options.indent_handlebars&&(this.__patterns.word=this.__patterns.word.exclude("handlebars")),this._unformatted_content_delimiter=null,this._options.unformatted_content_delimiter){var s=this._input.get_literal_regexp(this._options.unformatted_content_delimiter);this.__patterns.unformatted_content_delimiter=_.matching(s).until_after(s)}};(h.prototype=new n)._is_comment=function(t){return!1},h.prototype._is_opening=function(t){return t.type===r.TAG_OPEN},h.prototype._is_closing=function(t,e){return t.type===r.TAG_CLOSE&&e&&((">"===t.text||"/>"===t.text)&&"<"===e.text[0]||"}}"===t.text&&"{"===e.text[0]&&"{"===e.text[1])},h.prototype._reset=function(){this._current_tag_name=""},h.prototype._get_next_token=function(t,e){var i=null;this._readWhitespace();var n=this._input.peek();return null===n?this._create_token(r.EOF,""):i=(i=(i=(i=(i=(i=(i=(i=(i=i||this._read_open_handlebars(n,e))||this._read_attribute(n,t,e))||this._read_close(n,e))||this._read_raw_content(n,t,e))||this._read_content_word(n))||this._read_comment_or_cdata(n))||this._read_processing(n))||this._read_open(n,e))||this._create_token(r.UNKNOWN,this._input.next())},h.prototype._read_comment_or_cdata=function(t){var e=null,i=null,n=null;return"<"===t&&("!"===this._input.peek(1)&&((i=this.__patterns.comment.read())?(n=o.get_directives(i))&&"start"===n.ignore&&(i+=o.readIgnored(this._input)):i=this.__patterns.cdata.read()),i&&((e=this._create_token(r.COMMENT,i)).directives=n)),e},h.prototype._read_processing=function(t){var e=null,i=null;if("<"===t){var n=this._input.peek(1);"!"!==n&&"?"!==n||(i=(i=this.__patterns.conditional_comment.read())||this.__patterns.processing.read()),i&&((e=this._create_token(r.COMMENT,i)).directives=null)}return e},h.prototype._read_open=function(t,e){var i=null,n=null;return e||"<"===t&&(i=this._input.next(),"/"===this._input.peek()&&(i+=this._input.next()),i+=this.__patterns.element_name.read(),n=this._create_token(r.TAG_OPEN,i)),n},h.prototype._read_open_handlebars=function(t,e){var i=null,n=null;return e||this._options.indent_handlebars&&"{"===t&&"{"===this._input.peek(1)&&("!"===this._input.peek(2)?(i=(i=this.__patterns.handlebars_comment.read())||this.__patterns.handlebars.read(),n=this._create_token(r.COMMENT,i)):(i=this.__patterns.handlebars_open.read(),n=this._create_token(r.TAG_OPEN,i))),n},h.prototype._read_close=function(t,e){var i=null,n=null;return e&&("<"===e.text[0]&&(">"===t||"/"===t&&">"===this._input.peek(1))?(i=this._input.next(),"/"===t&&(i+=this._input.next()),n=this._create_token(r.TAG_CLOSE,i)):"{"===e.text[0]&&"}"===t&&"}"===this._input.peek(1)&&(this._input.next(),this._input.next(),n=this._create_token(r.TAG_CLOSE,"}}"))),n},h.prototype._read_attribute=function(t,e,i){var n=null,_="";if(i&&"<"===i.text[0])if("="===t)n=this._create_token(r.EQUALS,this._input.next());else if('"'===t||"'"===t){var s=this._input.next();s+='"'===t?this.__patterns.double_quote.read():this.__patterns.single_quote.read(),n=this._create_token(r.VALUE,s)}else(_=this.__patterns.attribute.read())&&(n=e.type===r.EQUALS?this._create_token(r.VALUE,_):this._create_token(r.ATTRIBUTE,_));return n},h.prototype._is_content_unformatted=function(t){return-1===this._options.void_elements.indexOf(t)&&(-1!==this._options.content_unformatted.indexOf(t)||-1!==this._options.unformatted.indexOf(t))},h.prototype._read_raw_content=function(t,e,i){var n="";if(i&&"{"===i.text[0])n=this.__patterns.handlebars_raw_close.read();else if(e.type===r.TAG_CLOSE&&"<"===e.opened.text[0]&&"/"!==e.text[0]){var _=e.opened.text.substr(1).toLowerCase();if("script"===_||"style"===_){var s=this._read_comment_or_cdata(t);if(s)return s.type=r.TEXT,s;n=this._input.readUntil(new RegExp("</"+_+"[\\n\\r\\t ]*?>","ig"))}else this._is_content_unformatted(_)&&(n=this._input.readUntil(new RegExp("</"+_+"[\\n\\r\\t ]*?>","ig")))}return n?this._create_token(r.TEXT,n):null},h.prototype._read_content_word=function(t){var e="";if(this._options.unformatted_content_delimiter&&t===this._options.unformatted_content_delimiter[0]&&(e=this.__patterns.unformatted_content_delimiter.read()),e||(e=this.__patterns.word.read()),e)return this._create_token(r.TEXT,e)},t.exports.d=h,t.exports.o=r},772:function(t,e,i){var n=i(82),_=i(968),s=i(391);function a(t,e,i,a){return 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R(t,e){e=e||{},this._source_text=t||"",this._output=null,this._tokens=null,this._last_last_text=null,this._flags=null,this._previous_flags=null,this._flag_store=null,this._options=new a(e)}R.prototype.create_flags=function(t,e){var i=0;return t&&(i=t.indentation_level,!this._output.just_added_newline()&&t.line_indent_level>i&&(i=t.line_indent_level)),{mode:e,parent:t,last_token:t?t.last_token:new _(h.START_BLOCK,""),last_word:t?t.last_word:"",declaration_statement:!1,declaration_assignment:!1,multiline_frame:!1,inline_frame:!1,if_block:!1,else_block:!1,class_start_block:!1,do_block:!1,do_while:!1,import_block:!1,in_case_statement:!1,in_case:!1,case_body:!1,case_block:!1,indentation_level:i,alignment:0,line_indent_level:t?t.line_indent_level:i,start_line_index:this._output.get_line_number(),ternary_depth:0}},R.prototype._reset=function(t){var e=t.match(/^[\t ]*/)[0];this._last_last_text="",this._output=new n(this._options,e),this._output.raw=this._options.test_output_raw,this._flag_store=[],this.set_mode(b);var i=new u(t,this._options);return this._tokens=i.tokenize(),t},R.prototype.beautify=function(){if(this._options.disabled)return this._source_text;var t=this._reset(this._source_text),e=this._options.eol;"auto"===this._options.eol&&(e="\n",t&&s.lineBreak.test(t||"")&&(e=t.match(s.lineBreak)[0]));for(var i=this._tokens.next();i;)this.handle_token(i),this._last_last_text=this._flags.last_token.text,this._flags.last_token=i,i=this._tokens.next();return this._output.get_code(e)},R.prototype.handle_token=function(t,e){t.type===h.START_EXPR?this.handle_start_expr(t):t.type===h.END_EXPR?this.handle_end_expr(t):t.type===h.START_BLOCK?this.handle_start_block(t):t.type===h.END_BLOCK?this.handle_end_block(t):t.type===h.WORD||t.type===h.RESERVED?this.handle_word(t):t.type===h.SEMICOLON?this.handle_semicolon(t):t.type===h.STRING?this.handle_string(t):t.type===h.EQUALS?this.handle_equals(t):t.type===h.OPERATOR?this.handle_operator(t):t.type===h.COMMA?this.handle_comma(t):t.type===h.BLOCK_COMMENT?this.handle_block_comment(t,e):t.type===h.COMMENT?this.handle_comment(t,e):t.type===h.DOT?this.handle_dot(t):t.type===h.EOF?this.handle_eof(t):(t.type,h.UNKNOWN,this.handle_unknown(t,e))},R.prototype.handle_whitespace_and_comments=function(t,e){var i=t.newlines,n=this._options.keep_array_indentation&&O(this._flags.mode);if(t.comments_before)for(var _=t.comments_before.next();_;)this.handle_whitespace_and_comments(_,e),this.handle_token(_,e),_=t.comments_before.next();if(n)for(var s=0;s<i;s+=1)this.print_newline(s>0,e);else if(this._options.max_preserve_newlines&&i>this._options.max_preserve_newlines&&(i=this._options.max_preserve_newlines),this._options.preserve_newlines&&i>1){this.print_newline(!1,e);for(var a=1;a<i;a+=1)this.print_newline(!0,e)}};var A=["async","break","continue","return","throw","yield"];R.prototype.allow_wrap_or_preserved_newline=function(t,e){if(e=void 0!==e&&e,!this._output.just_added_newline()){var i=this._options.preserve_newlines&&t.newlines||e;if(p(this._flags.last_token.text,o)||p(t.text,o)){var n=p(this._flags.last_token.text,o)&&p(this._options.operator_position,g)||p(t.text,o);i=i&&n}if(i)this.print_newline(!1,!0);else if(this._options.wrap_line_length){if(c(this._flags.last_token,A))return;this._output.set_wrap_point()}}},R.prototype.print_newline=function(t,e){if(!e&&";"!==this._flags.last_token.text&&","!==this._flags.last_token.text&&"="!==this._flags.last_token.text&&(this._flags.last_token.type!==h.OPERATOR||"--"===this._flags.last_token.text||"++"===this._flags.last_token.text))for(var i=this._tokens.peek();!(this._flags.mode!==m||this._flags.if_block&&l(i,"else")||this._flags.do_block);)this.restore_mode();this._output.add_new_line(t)&&(this._flags.multiline_frame=!0)},R.prototype.print_token_line_indentation=function(t){this._output.just_added_newline()&&(this._options.keep_array_indentation&&t.newlines&&("["===t.text||O(this._flags.mode))?(this._output.current_line.set_indent(-1),this._output.current_line.push(t.whitespace_before),this._output.space_before_token=!1):this._output.set_indent(this._flags.indentation_level,this._flags.alignment)&&(this._flags.line_indent_level=this._flags.indentation_level))},R.prototype.print_token=function(t){if(this._output.raw)this._output.add_raw_token(t);else{if(this._options.comma_first&&t.previous&&t.previous.type===h.COMMA&&this._output.just_added_newline()&&","===this._output.previous_line.last()){var e=this._output.previous_line.pop();this._output.previous_line.is_empty()&&(this._output.previous_line.push(e),this._output.trim(!0),this._output.current_line.pop(),this._output.trim()),this.print_token_line_indentation(t),this._output.add_token(","),this._output.space_before_token=!0}this.print_token_line_indentation(t),this._output.non_breaking_space=!0,this._output.add_token(t.text),this._output.previous_token_wrapped&&(this._flags.multiline_frame=!0)}},R.prototype.indent=function(){this._flags.indentation_level+=1,this._output.set_indent(this._flags.indentation_level,this._flags.alignment)},R.prototype.deindent=function(){this._flags.indentation_level>0&&(!this._flags.parent||this._flags.indentation_level>this._flags.parent.indentation_level)&&(this._flags.indentation_level-=1,this._output.set_indent(this._flags.indentation_level,this._flags.alignment))},R.prototype.set_mode=function(t){this._flags?(this._flag_store.push(this._flags),this._previous_flags=this._flags):this._previous_flags=this.create_flags(null,t),this._flags=this.create_flags(this._previous_flags,t),this._output.set_indent(this._flags.indentation_level,this._flags.alignment)},R.prototype.restore_mode=function(){this._flag_store.length>0&&(this._previous_flags=this._flags,this._flags=this._flag_store.pop(),this._previous_flags.mode===m&&E(this._output,this._previous_flags),this._output.set_indent(this._flags.indentation_level,this._flags.alignment))},R.prototype.start_of_object_property=function(){return this._flags.parent.mode===k&&this._flags.mode===m&&(":"===this._flags.last_token.text&&0===this._flags.ternary_depth||c(this._flags.last_token,["get","set"]))},R.prototype.start_of_statement=function(t){var e=!1;return!!(e=(e=(e=(e=(e=(e=(e=e||c(this._flags.last_token,["var","let","const"])&&t.type===h.WORD)||l(this._flags.last_token,"do"))||!(this._flags.parent.mode===k&&this._flags.mode===m)&&c(this._flags.last_token,A)&&!t.newlines)||l(this._flags.last_token,"else")&&!(l(t,"if")&&!t.comments_before))||this._flags.last_token.type===h.END_EXPR&&(this._previous_flags.mode===y||this._previous_flags.mode===x))||this._flags.last_token.type===h.WORD&&this._flags.mode===b&&!this._flags.in_case&&!("--"===t.text||"++"===t.text)&&"function"!==this._last_last_text&&t.type!==h.WORD&&t.type!==h.RESERVED)||this._flags.mode===k&&(":"===this._flags.last_token.text&&0===this._flags.ternary_depth||c(this._flags.last_token,["get","set"])))&&(this.set_mode(m),this.indent(),this.handle_whitespace_and_comments(t,!0),this.start_of_object_property()||this.allow_wrap_or_preserved_newline(t,c(t,["do","for","if","while"])),!0)},R.prototype.handle_start_expr=function(t){this.start_of_statement(t)||this.handle_whitespace_and_comments(t);var e=v;if("["===t.text){if(this._flags.last_token.type===h.WORD||")"===this._flags.last_token.text)return c(this._flags.last_token,r)&&(this._output.space_before_token=!0),this.print_token(t),this.set_mode(e),this.indent(),void(this._options.space_in_paren&&(this._output.space_before_token=!0));e=w,O(this._flags.mode)&&("["!==this._flags.last_token.text&&(","!==this._flags.last_token.text||"]"!==this._last_last_text&&"}"!==this._last_last_text)||this._options.keep_array_indentation||this.print_newline()),p(this._flags.last_token.type,[h.START_EXPR,h.END_EXPR,h.WORD,h.OPERATOR,h.DOT])||(this._output.space_before_token=!0)}else{if(this._flags.last_token.type===h.RESERVED)"for"===this._flags.last_token.text?(this._output.space_before_token=this._options.space_before_conditional,e=y):p(this._flags.last_token.text,["if","while","switch"])?(this._output.space_before_token=this._options.space_before_conditional,e=x):p(this._flags.last_word,["await","async"])?this._output.space_before_token=!0:"import"===this._flags.last_token.text&&""===t.whitespace_before?this._output.space_before_token=!1:(p(this._flags.last_token.text,r)||"catch"===this._flags.last_token.text)&&(this._output.space_before_token=!0);else if(this._flags.last_token.type===h.EQUALS||this._flags.last_token.type===h.OPERATOR)this.start_of_object_property()||this.allow_wrap_or_preserved_newline(t);else if(this._flags.last_token.type===h.WORD){this._output.space_before_token=!1;var i=this._tokens.peek(-3);if(this._options.space_after_named_function&&i){var n=this._tokens.peek(-4);c(i,["async","function"])||"*"===i.text&&c(n,["async","function"])?this._output.space_before_token=!0:this._flags.mode===k?"{"!==i.text&&","!==i.text&&("*"!==i.text||"{"!==n.text&&","!==n.text)||(this._output.space_before_token=!0):this._flags.parent&&this._flags.parent.class_start_block&&(this._output.space_before_token=!0)}}else this.allow_wrap_or_preserved_newline(t);(this._flags.last_token.type===h.RESERVED&&("function"===this._flags.last_word||"typeof"===this._flags.last_word)||"*"===this._flags.last_token.text&&(p(this._last_last_text,["function","yield"])||this._flags.mode===k&&p(this._last_last_text,["{",","])))&&(this._output.space_before_token=this._options.space_after_anon_function)}";"===this._flags.last_token.text||this._flags.last_token.type===h.START_BLOCK?this.print_newline():this._flags.last_token.type!==h.END_EXPR&&this._flags.last_token.type!==h.START_EXPR&&this._flags.last_token.type!==h.END_BLOCK&&"."!==this._flags.last_token.text&&this._flags.last_token.type!==h.COMMA||this.allow_wrap_or_preserved_newline(t,t.newlines),this.print_token(t),this.set_mode(e),this._options.space_in_paren&&(this._output.space_before_token=!0),this.indent()},R.prototype.handle_end_expr=function(t){for(;this._flags.mode===m;)this.restore_mode();this.handle_whitespace_and_comments(t),this._flags.multiline_frame&&this.allow_wrap_or_preserved_newline(t,"]"===t.text&&O(this._flags.mode)&&!this._options.keep_array_indentation),this._options.space_in_paren&&(this._flags.last_token.type!==h.START_EXPR||this._options.space_in_empty_paren?this._output.space_before_token=!0:(this._output.trim(),this._output.space_before_token=!1)),this.deindent(),this.print_token(t),this.restore_mode(),E(this._output,this._previous_flags),this._flags.do_while&&this._previous_flags.mode===x&&(this._previous_flags.mode=v,this._flags.do_block=!1,this._flags.do_while=!1)},R.prototype.handle_start_block=function(t){this.handle_whitespace_and_comments(t);var e=this._tokens.peek(),i=this._tokens.peek(1);"switch"===this._flags.last_word&&this._flags.last_token.type===h.END_EXPR?(this.set_mode(b),this._flags.in_case_statement=!0):this._flags.case_body?this.set_mode(b):i&&(p(i.text,[":",","])&&p(e.type,[h.STRING,h.WORD,h.RESERVED])||p(e.text,["get","set","..."])&&p(i.type,[h.WORD,h.RESERVED]))?p(this._last_last_text,["class","interface"])&&!p(i.text,[":",","])?this.set_mode(b):this.set_mode(k):this._flags.last_token.type===h.OPERATOR&&"=>"===this._flags.last_token.text?this.set_mode(b):p(this._flags.last_token.type,[h.EQUALS,h.START_EXPR,h.COMMA,h.OPERATOR])||c(this._flags.last_token,["return","throw","import","default"])?this.set_mode(k):this.set_mode(b),this._flags.last_token&&c(this._flags.last_token.previous,["class","extends"])&&(this._flags.class_start_block=!0);var n=!e.comments_before&&"}"===e.text,_=n&&"function"===this._flags.last_word&&this._flags.last_token.type===h.END_EXPR;if(this._options.brace_preserve_inline){var s=0,a=null;this._flags.inline_frame=!0;do{if(s+=1,(a=this._tokens.peek(s-1)).newlines){this._flags.inline_frame=!1;break}}while(a.type!==h.EOF&&(a.type!==h.END_BLOCK||a.opened!==t))}("expand"===this._options.brace_style||"none"===this._options.brace_style&&t.newlines)&&!this._flags.inline_frame?this._flags.last_token.type!==h.OPERATOR&&(_||this._flags.last_token.type===h.EQUALS||c(this._flags.last_token,f)&&"else"!==this._flags.last_token.text)?this._output.space_before_token=!0:this.print_newline(!1,!0):(!O(this._previous_flags.mode)||this._flags.last_token.type!==h.START_EXPR&&this._flags.last_token.type!==h.COMMA||((this._flags.last_token.type===h.COMMA||this._options.space_in_paren)&&(this._output.space_before_token=!0),(this._flags.last_token.type===h.COMMA||this._flags.last_token.type===h.START_EXPR&&this._flags.inline_frame)&&(this.allow_wrap_or_preserved_newline(t),this._previous_flags.multiline_frame=this._previous_flags.multiline_frame||this._flags.multiline_frame,this._flags.multiline_frame=!1)),this._flags.last_token.type!==h.OPERATOR&&this._flags.last_token.type!==h.START_EXPR&&(this._flags.last_token.type!==h.START_BLOCK||this._flags.inline_frame?this._output.space_before_token=!0:this.print_newline())),this.print_token(t),this.indent(),n||this._options.brace_preserve_inline&&this._flags.inline_frame||this.print_newline()},R.prototype.handle_end_block=function(t){for(this.handle_whitespace_and_comments(t);this._flags.mode===m;)this.restore_mode();var e=this._flags.last_token.type===h.START_BLOCK;this._flags.inline_frame&&!e?this._output.space_before_token=!0:"expand"===this._options.brace_style?e||this.print_newline():e||(O(this._flags.mode)&&this._options.keep_array_indentation?(this._options.keep_array_indentation=!1,this.print_newline(),this._options.keep_array_indentation=!0):this.print_newline()),this.restore_mode(),this.print_token(t)},R.prototype.handle_word=function(t){if(t.type===h.RESERVED&&(p(t.text,["set","get"])&&this._flags.mode!==k||"import"===t.text&&p(this._tokens.peek().text,["(","."])||p(t.text,["as","from"])&&!this._flags.import_block||this._flags.mode===k&&":"===this._tokens.peek().text)&&(t.type=h.WORD),this.start_of_statement(t)?c(this._flags.last_token,["var","let","const"])&&t.type===h.WORD&&(this._flags.declaration_statement=!0):!t.newlines||T(this._flags.mode)||this._flags.last_token.type===h.OPERATOR&&"--"!==this._flags.last_token.text&&"++"!==this._flags.last_token.text||this._flags.last_token.type===h.EQUALS||!this._options.preserve_newlines&&c(this._flags.last_token,["var","let","const","set","get"])?this.handle_whitespace_and_comments(t):(this.handle_whitespace_and_comments(t),this.print_newline()),this._flags.do_block&&!this._flags.do_while){if(l(t,"while"))return this._output.space_before_token=!0,this.print_token(t),this._output.space_before_token=!0,void(this._flags.do_while=!0);this.print_newline(),this._flags.do_block=!1}if(this._flags.if_block)if(!this._flags.else_block&&l(t,"else"))this._flags.else_block=!0;else{for(;this._flags.mode===m;)this.restore_mode();this._flags.if_block=!1,this._flags.else_block=!1}if(this._flags.in_case_statement&&c(t,["case","default"]))return this.print_newline(),this._flags.case_block||!this._flags.case_body&&!this._options.jslint_happy||this.deindent(),this._flags.case_body=!1,this.print_token(t),void(this._flags.in_case=!0);if(this._flags.last_token.type!==h.COMMA&&this._flags.last_token.type!==h.START_EXPR&&this._flags.last_token.type!==h.EQUALS&&this._flags.last_token.type!==h.OPERATOR||this.start_of_object_property()||this.allow_wrap_or_preserved_newline(t),l(t,"function"))return(p(this._flags.last_token.text,["}",";"])||this._output.just_added_newline()&&!p(this._flags.last_token.text,["(","[","{",":","=",","])&&this._flags.last_token.type!==h.OPERATOR)&&(this._output.just_added_blankline()||t.comments_before||(this.print_newline(),this.print_newline(!0))),this._flags.last_token.type===h.RESERVED||this._flags.last_token.type===h.WORD?c(this._flags.last_token,["get","set","new","export"])||c(this._flags.last_token,A)||l(this._flags.last_token,"default")&&"export"===this._last_last_text||"declare"===this._flags.last_token.text?this._output.space_before_token=!0:this.print_newline():this._flags.last_token.type===h.OPERATOR||"="===this._flags.last_token.text?this._output.space_before_token=!0:(this._flags.multiline_frame||!T(this._flags.mode)&&!O(this._flags.mode))&&this.print_newline(),this.print_token(t),void(this._flags.last_word=t.text);var e="NONE";this._flags.last_token.type===h.END_BLOCK?this._previous_flags.inline_frame?e="SPACE":c(t,["else","catch","finally","from"])?"expand"===this._options.brace_style||"end-expand"===this._options.brace_style||"none"===this._options.brace_style&&t.newlines?e="NEWLINE":(e="SPACE",this._output.space_before_token=!0):e="NEWLINE":this._flags.last_token.type===h.SEMICOLON&&this._flags.mode===b?e="NEWLINE":this._flags.last_token.type===h.SEMICOLON&&T(this._flags.mode)?e="SPACE":this._flags.last_token.type===h.STRING?e="NEWLINE":this._flags.last_token.type===h.RESERVED||this._flags.last_token.type===h.WORD||"*"===this._flags.last_token.text&&(p(this._last_last_text,["function","yield"])||this._flags.mode===k&&p(this._last_last_text,["{",","]))?e="SPACE":this._flags.last_token.type===h.START_BLOCK?e=this._flags.inline_frame?"SPACE":"NEWLINE":this._flags.last_token.type===h.END_EXPR&&(this._output.space_before_token=!0,e="NEWLINE"),c(t,r)&&")"!==this._flags.last_token.text&&(e=this._flags.inline_frame||"else"===this._flags.last_token.text||"export"===this._flags.last_token.text?"SPACE":"NEWLINE"),c(t,["else","catch","finally"])?(this._flags.last_token.type!==h.END_BLOCK||this._previous_flags.mode!==b||"expand"===this._options.brace_style||"end-expand"===this._options.brace_style||"none"===this._options.brace_style&&t.newlines)&&!this._flags.inline_frame?this.print_newline():(this._output.trim(!0),"}"!==this._output.current_line.last()&&this.print_newline(),this._output.space_before_token=!0):"NEWLINE"===e?c(this._flags.last_token,f)||"declare"===this._flags.last_token.text&&c(t,["var","let","const"])?this._output.space_before_token=!0:this._flags.last_token.type!==h.END_EXPR?this._flags.last_token.type===h.START_EXPR&&c(t,["var","let","const"])||":"===this._flags.last_token.text||(l(t,"if")&&l(t.previous,"else")?this._output.space_before_token=!0:this.print_newline()):c(t,r)&&")"!==this._flags.last_token.text&&this.print_newline():this._flags.multiline_frame&&O(this._flags.mode)&&","===this._flags.last_token.text&&"}"===this._last_last_text?this.print_newline():"SPACE"===e&&(this._output.space_before_token=!0),!t.previous||t.previous.type!==h.WORD&&t.previous.type!==h.RESERVED||(this._output.space_before_token=!0),this.print_token(t),this._flags.last_word=t.text,t.type===h.RESERVED&&("do"===t.text?this._flags.do_block=!0:"if"===t.text?this._flags.if_block=!0:"import"===t.text?this._flags.import_block=!0:this._flags.import_block&&l(t,"from")&&(this._flags.import_block=!1))},R.prototype.handle_semicolon=function(t){this.start_of_statement(t)?this._output.space_before_token=!1:this.handle_whitespace_and_comments(t);for(var e=this._tokens.peek();!(this._flags.mode!==m||this._flags.if_block&&l(e,"else")||this._flags.do_block);)this.restore_mode();this._flags.import_block&&(this._flags.import_block=!1),this.print_token(t)},R.prototype.handle_string=function(t){(!t.text.startsWith("`")||0!==t.newlines||""!==t.whitespace_before||")"!==t.previous.text&&this._flags.last_token.type!==h.WORD)&&(this.start_of_statement(t)?this._output.space_before_token=!0:(this.handle_whitespace_and_comments(t),this._flags.last_token.type===h.RESERVED||this._flags.last_token.type===h.WORD||this._flags.inline_frame?this._output.space_before_token=!0:this._flags.last_token.type===h.COMMA||this._flags.last_token.type===h.START_EXPR||this._flags.last_token.type===h.EQUALS||this._flags.last_token.type===h.OPERATOR?this.start_of_object_property()||this.allow_wrap_or_preserved_newline(t):!t.text.startsWith("`")||this._flags.last_token.type!==h.END_EXPR||"]"!==t.previous.text&&")"!==t.previous.text||0!==t.newlines?this.print_newline():this._output.space_before_token=!0)),this.print_token(t)},R.prototype.handle_equals=function(t){this.start_of_statement(t)||this.handle_whitespace_and_comments(t),this._flags.declaration_statement&&(this._flags.declaration_assignment=!0),this._output.space_before_token=!0,this.print_token(t),this._output.space_before_token=!0},R.prototype.handle_comma=function(t){this.handle_whitespace_and_comments(t,!0),this.print_token(t),this._output.space_before_token=!0,this._flags.declaration_statement?(T(this._flags.parent.mode)&&(this._flags.declaration_assignment=!1),this._flags.declaration_assignment?(this._flags.declaration_assignment=!1,this.print_newline(!1,!0)):this._options.comma_first&&this.allow_wrap_or_preserved_newline(t)):this._flags.mode===k||this._flags.mode===m&&this._flags.parent.mode===k?(this._flags.mode===m&&this.restore_mode(),this._flags.inline_frame||this.print_newline()):this._options.comma_first&&this.allow_wrap_or_preserved_newline(t)},R.prototype.handle_operator=function(t){var e="*"===t.text&&(c(this._flags.last_token,["function","yield"])||p(this._flags.last_token.type,[h.START_BLOCK,h.COMMA,h.END_BLOCK,h.SEMICOLON])),i=p(t.text,["-","+"])&&(p(this._flags.last_token.type,[h.START_BLOCK,h.START_EXPR,h.EQUALS,h.OPERATOR])||p(this._flags.last_token.text,r)||","===this._flags.last_token.text);if(this.start_of_statement(t));else{var n=!e;this.handle_whitespace_and_comments(t,n)}if("*"!==t.text||this._flags.last_token.type!==h.DOT)if("::"!==t.text){if(this._flags.last_token.type===h.OPERATOR&&p(this._options.operator_position,g)&&this.allow_wrap_or_preserved_newline(t),":"===t.text&&this._flags.in_case)return this.print_token(t),this._flags.in_case=!1,this._flags.case_body=!0,void(this._tokens.peek().type!==h.START_BLOCK?(this.indent(),this.print_newline(),this._flags.case_block=!1):(this._flags.case_block=!0,this._output.space_before_token=!0));var _=!0,s=!0,a=!1;if(":"===t.text?0===this._flags.ternary_depth?_=!1:(this._flags.ternary_depth-=1,a=!0):"?"===t.text&&(this._flags.ternary_depth+=1),!i&&!e&&this._options.preserve_newlines&&p(t.text,o)){var u=":"===t.text,l=u&&a,k=u&&!a;switch(this._options.operator_position){case d.before_newline:return this._output.space_before_token=!k,this.print_token(t),u&&!l||this.allow_wrap_or_preserved_newline(t),void(this._output.space_before_token=!0);case d.after_newline:return this._output.space_before_token=!0,!u||l?this._tokens.peek().newlines?this.print_newline(!1,!0):this.allow_wrap_or_preserved_newline(t):this._output.space_before_token=!1,this.print_token(t),void(this._output.space_before_token=!0);case d.preserve_newline:return k||this.allow_wrap_or_preserved_newline(t),_=!(this._output.just_added_newline()||k),this._output.space_before_token=_,this.print_token(t),void(this._output.space_before_token=!0)}}if(e){this.allow_wrap_or_preserved_newline(t),_=!1;var w=this._tokens.peek();s=w&&p(w.type,[h.WORD,h.RESERVED])}else if("..."===t.text)this.allow_wrap_or_preserved_newline(t),_=this._flags.last_token.type===h.START_BLOCK,s=!1;else if(p(t.text,["--","++","!","~"])||i){if(this._flags.last_token.type!==h.COMMA&&this._flags.last_token.type!==h.START_EXPR||this.allow_wrap_or_preserved_newline(t),_=!1,s=!1,t.newlines&&("--"===t.text||"++"===t.text||"~"===t.text)){var y=c(this._flags.last_token,f)&&t.newlines;y&&(this._previous_flags.if_block||this._previous_flags.else_block)&&this.restore_mode(),this.print_newline(y,!0)}";"===this._flags.last_token.text&&T(this._flags.mode)&&(_=!0),this._flags.last_token.type===h.RESERVED?_=!0:this._flags.last_token.type===h.END_EXPR?_=!("]"===this._flags.last_token.text&&("--"===t.text||"++"===t.text)):this._flags.last_token.type===h.OPERATOR&&(_=p(t.text,["--","-","++","+"])&&p(this._flags.last_token.text,["--","-","++","+"]),p(t.text,["+","-"])&&p(this._flags.last_token.text,["--","++"])&&(s=!0)),(this._flags.mode!==b||this._flags.inline_frame)&&this._flags.mode!==m||"{"!==this._flags.last_token.text&&";"!==this._flags.last_token.text||this.print_newline()}this._output.space_before_token=this._output.space_before_token||_,this.print_token(t),this._output.space_before_token=s}else this.print_token(t);else this.print_token(t)},R.prototype.handle_block_comment=function(t,e){return this._output.raw?(this._output.add_raw_token(t),void(t.directives&&"end"===t.directives.preserve&&(this._output.raw=this._options.test_output_raw))):t.directives?(this.print_newline(!1,e),this.print_token(t),"start"===t.directives.preserve&&(this._output.raw=!0),void this.print_newline(!1,!0)):s.newline.test(t.text)||t.newlines?void this.print_block_commment(t,e):(this._output.space_before_token=!0,this.print_token(t),void(this._output.space_before_token=!0))},R.prototype.print_block_commment=function(t,e){var i,n=function(t){for(var e=[],i=(t=t.replace(s.allLineBreaks,"\n")).indexOf("\n");-1!==i;)e.push(t.substring(0,i)),i=(t=t.substring(i+1)).indexOf("\n");return t.length&&e.push(t),e}(t.text),_=!1,a=!1,u=t.whitespace_before,r=u.length;if(this.print_newline(!1,e),this.print_token_line_indentation(t),this._output.add_token(n[0]),this.print_newline(!1,e),n.length>1){for(_=function(t,e){for(var i=0;i<t.length;i++)if("*"!==t[i].trim().charAt(0))return!1;return!0}(n=n.slice(1)),a=function(t,e){for(var i,n=0,_=t.length;n<_;n++)if((i=t[n])&&0!==i.indexOf(e))return!1;return!0}(n,u),_&&(this._flags.alignment=1),i=0;i<n.length;i++)_?(this.print_token_line_indentation(t),this._output.add_token(n[i].replace(/^\s+/g,""))):a&&n[i]?(this.print_token_line_indentation(t),this._output.add_token(n[i].substring(r))):(this._output.current_line.set_indent(-1),this._output.add_token(n[i])),this.print_newline(!1,e);this._flags.alignment=0}},R.prototype.handle_comment=function(t,e){t.newlines?this.print_newline(!1,e):this._output.trim(!0),this._output.space_before_token=!0,this.print_token(t),this.print_newline(!1,e)},R.prototype.handle_dot=function(t){this.start_of_statement(t)||this.handle_whitespace_and_comments(t,!0),this._flags.last_token.text.match("^[0-9]+$")&&(this._output.space_before_token=!0),c(this._flags.last_token,f)?this._output.space_before_token=!1:this.allow_wrap_or_preserved_newline(t,")"===this._flags.last_token.text&&this._options.break_chained_methods),this._options.unindent_chained_methods&&this._output.just_added_newline()&&this.deindent(),this.print_token(t)},R.prototype.handle_unknown=function(t,e){this.print_token(t),"\n"===t.text[t.text.length-1]&&this.print_newline(!1,e)},R.prototype.handle_eof=function(t){for(;this._flags.mode===m;)this.restore_mode();this.handle_whitespace_and_comments(t)},t.exports.K=R},82:function(t,e,i){var n=i(282).K,_=i(962).E;t.exports=function(t,e){return new n(t,e).beautify()},t.exports.defaultOptions=function(){return new _}},962:function(t,e,i){var n=i(915).Ei,_=["before-newline","after-newline","preserve-newline"];function s(t){n.call(this,t,"js");var e=this.raw_options.brace_style||null;"expand-strict"===e?this.raw_options.brace_style="expand":"collapse-preserve-inline"===e?this.raw_options.brace_style="collapse,preserve-inline":void 0!==this.raw_options.braces_on_own_line&&(this.raw_options.brace_style=this.raw_options.braces_on_own_line?"expand":"collapse");var i=this._get_selection_list("brace_style",["collapse","expand","end-expand","none","preserve-inline"]);this.brace_preserve_inline=!1,this.brace_style="collapse";for(var s=0;s<i.length;s++)"preserve-inline"===i[s]?this.brace_preserve_inline=!0:this.brace_style=i[s];this.unindent_chained_methods=this._get_boolean("unindent_chained_methods"),this.break_chained_methods=this._get_boolean("break_chained_methods"),this.space_in_paren=this._get_boolean("space_in_paren"),this.space_in_empty_paren=this._get_boolean("space_in_empty_paren"),this.jslint_happy=this._get_boolean("jslint_happy"),this.space_after_anon_function=this._get_boolean("space_after_anon_function"),this.space_after_named_function=this._get_boolean("space_after_named_function"),this.keep_array_indentation=this._get_boolean("keep_array_indentation"),this.space_before_conditional=this._get_boolean("space_before_conditional",!0),this.unescape_strings=this._get_boolean("unescape_strings"),this.e4x=this._get_boolean("e4x"),this.comma_first=this._get_boolean("comma_first"),this.operator_position=this._get_selection("operator_position",_),this.test_output_raw=this._get_boolean("test_output_raw"),this.jslint_happy&&(this.space_after_anon_function=!0)}s.prototype=new n,t.exports.E=s},76:function(t,e,i){var n=i(418).g,_=i(147).d,s=i(147).o,a=i(7).t,u=i(273),r=i(348).c,o=i(800).A;function h(t,e){return-1!==e.indexOf(t)}var p={START_EXPR:"TK_START_EXPR",END_EXPR:"TK_END_EXPR",START_BLOCK:"TK_START_BLOCK",END_BLOCK:"TK_END_BLOCK",WORD:"TK_WORD",RESERVED:"TK_RESERVED",SEMICOLON:"TK_SEMICOLON",STRING:"TK_STRING",EQUALS:"TK_EQUALS",OPERATOR:"TK_OPERATOR",COMMA:"TK_COMMA",BLOCK_COMMENT:"TK_BLOCK_COMMENT",COMMENT:"TK_COMMENT",DOT:"TK_DOT",UNKNOWN:"TK_UNKNOWN",START:s.START,RAW:s.RAW,EOF:s.EOF},l=new a(/\/\*/,/\*\//),c=/0[xX][0123456789abcdefABCDEF_]*n?|0[oO][01234567_]*n?|0[bB][01_]*n?|\d[\d_]*n|(?:\.\d[\d_]*|\d[\d_]*\.?[\d_]*)(?:[eE][+-]?[\d_]+)?/,f=/[0-9]/,d=/[^\d\.]/,g=">>> === !== &&= ??= ||= << && >= ** != == <= >> || ?? |> < / - + > : & % ? ^ | *".split(" "),b=">>>= ... >>= <<= === >>> !== **= &&= ??= ||= => ^= :: /= << <= == && -= >= >> != -- += ** || ?? ++ %= &= *= |= |> = ! ? > < : / ^ - + * & % ~ |";b=(b="\\?\\.(?!\\d) "+(b=b.replace(/[-[\]{}()*+?.,\\^$|#]/g,"\\$&"))).replace(/ /g,"|");var m,k=new RegExp(b),w="continue,try,throw,return,var,let,const,if,switch,case,default,for,while,break,function,import,export".split(","),y=w.concat(["do","in","of","else","get","set","new","catch","finally","typeof","yield","async","await","from","as","class","extends"]),x=new RegExp("^(?:"+y.join("|")+")$"),v=function(t,e){_.call(this,t,e),this._patterns.whitespace=this._patterns.whitespace.matching(/\u00A0\u1680\u180e\u2000-\u200a\u202f\u205f\u3000\ufeff/.source,/\u2028\u2029/.source);var i=new r(this._input),n=new o(this._input).read_options(this._options);this.__patterns={template:n,identifier:n.starting_with(u.identifier).matching(u.identifierMatch),number:i.matching(c),punct:i.matching(k),comment:i.starting_with(/\/\//).until(/[\n\r\u2028\u2029]/),block_comment:i.starting_with(/\/\*/).until_after(/\*\//),html_comment_start:i.matching(/<!--/),html_comment_end:i.matching(/-->/),include:i.starting_with(/#include/).until_after(u.lineBreak),shebang:i.starting_with(/#!/).until_after(u.lineBreak),xml:i.matching(/[\s\S]*?<(\/?)([-a-zA-Z:0-9_.]+|{[^}]+?}|!\[CDATA\[[^\]]*?\]\]|)(\s*{[^}]+?}|\s+[-a-zA-Z:0-9_.]+|\s+[-a-zA-Z:0-9_.]+\s*=\s*('[^']*'|"[^"]*"|{([^{}]|{[^}]+?})+?}))*\s*(\/?)\s*>/),single_quote:n.until(/['\\\n\r\u2028\u2029]/),double_quote:n.until(/["\\\n\r\u2028\u2029]/),template_text:n.until(/[`\\$]/),template_expression:n.until(/[`}\\]/)}};(v.prototype=new _)._is_comment=function(t){return t.type===p.COMMENT||t.type===p.BLOCK_COMMENT||t.type===p.UNKNOWN},v.prototype._is_opening=function(t){return t.type===p.START_BLOCK||t.type===p.START_EXPR},v.prototype._is_closing=function(t,e){return(t.type===p.END_BLOCK||t.type===p.END_EXPR)&&e&&("]"===t.text&&"["===e.text||")"===t.text&&"("===e.text||"}"===t.text&&"{"===e.text)},v.prototype._reset=function(){m=!1},v.prototype._get_next_token=function(t,e){var i=null;this._readWhitespace();var n=this._input.peek();return null===n?this._create_token(p.EOF,""):i=(i=(i=(i=(i=(i=(i=(i=(i=i||this._read_non_javascript(n))||this._read_string(n))||this._read_word(t))||this._read_singles(n))||this._read_comment(n))||this._read_regexp(n,t))||this._read_xml(n,t))||this._read_punctuation())||this._create_token(p.UNKNOWN,this._input.next())},v.prototype._read_word=function(t){var e;return""!==(e=this.__patterns.identifier.read())?(e=e.replace(u.allLineBreaks,"\n"),t.type!==p.DOT&&(t.type!==p.RESERVED||"set"!==t.text&&"get"!==t.text)&&x.test(e)?"in"!==e&&"of"!==e||t.type!==p.WORD&&t.type!==p.STRING?this._create_token(p.RESERVED,e):this._create_token(p.OPERATOR,e):this._create_token(p.WORD,e)):""!==(e=this.__patterns.number.read())?this._create_token(p.WORD,e):void 0},v.prototype._read_singles=function(t){var e=null;return"("===t||"["===t?e=this._create_token(p.START_EXPR,t):")"===t||"]"===t?e=this._create_token(p.END_EXPR,t):"{"===t?e=this._create_token(p.START_BLOCK,t):"}"===t?e=this._create_token(p.END_BLOCK,t):";"===t?e=this._create_token(p.SEMICOLON,t):"."===t&&d.test(this._input.peek(1))?e=this._create_token(p.DOT,t):","===t&&(e=this._create_token(p.COMMA,t)),e&&this._input.next(),e},v.prototype._read_punctuation=function(){var t=this.__patterns.punct.read();if(""!==t)return"="===t?this._create_token(p.EQUALS,t):"?."===t?this._create_token(p.DOT,t):this._create_token(p.OPERATOR,t)},v.prototype._read_non_javascript=function(t){var e="";if("#"===t){if(this._is_first_token()&&(e=this.__patterns.shebang.read()))return this._create_token(p.UNKNOWN,e.trim()+"\n");if(e=this.__patterns.include.read())return this._create_token(p.UNKNOWN,e.trim()+"\n");t=this._input.next();var i="#";if(this._input.hasNext()&&this._input.testChar(f)){do{i+=t=this._input.next()}while(this._input.hasNext()&&"#"!==t&&"="!==t);return"#"===t||("["===this._input.peek()&&"]"===this._input.peek(1)?(i+="[]",this._input.next(),this._input.next()):"{"===this._input.peek()&&"}"===this._input.peek(1)&&(i+="{}",this._input.next(),this._input.next())),this._create_token(p.WORD,i)}this._input.back()}else if("<"===t&&this._is_first_token()){if(e=this.__patterns.html_comment_start.read()){for(;this._input.hasNext()&&!this._input.testChar(u.newline);)e+=this._input.next();return m=!0,this._create_token(p.COMMENT,e)}}else if(m&&"-"===t&&(e=this.__patterns.html_comment_end.read()))return m=!1,this._create_token(p.COMMENT,e);return null},v.prototype._read_comment=function(t){var e=null;if("/"===t){var i="";if("*"===this._input.peek(1)){i=this.__patterns.block_comment.read();var n=l.get_directives(i);n&&"start"===n.ignore&&(i+=l.readIgnored(this._input)),i=i.replace(u.allLineBreaks,"\n"),(e=this._create_token(p.BLOCK_COMMENT,i)).directives=n}else"/"===this._input.peek(1)&&(i=this.__patterns.comment.read(),e=this._create_token(p.COMMENT,i))}return e},v.prototype._read_string=function(t){if("`"===t||"'"===t||'"'===t){var e=this._input.next();return this.has_char_escapes=!1,e+="`"===t?this._read_string_recursive("`",!0,"${"):this._read_string_recursive(t),this.has_char_escapes&&this._options.unescape_strings&&(e=function(t){for(var e="",i=0,_=new n(t),s=null;_.hasNext();)if((s=_.match(/([\s]|[^\\]|\\\\)+/g))&&(e+=s[0]),"\\"===_.peek()){if(_.next(),"x"===_.peek())s=_.match(/x([0-9A-Fa-f]{2})/g);else{if("u"!==_.peek()){e+="\\",_.hasNext()&&(e+=_.next());continue}s=_.match(/u([0-9A-Fa-f]{4})/g)}if(!s)return t;if((i=parseInt(s[1],16))>126&&i<=255&&0===s[0].indexOf("x"))return t;if(i>=0&&i<32){e+="\\"+s[0];continue}e+=34===i||39===i||92===i?"\\"+String.fromCharCode(i):String.fromCharCode(i)}return e}(e)),this._input.peek()===t&&(e+=this._input.next()),e=e.replace(u.allLineBreaks,"\n"),this._create_token(p.STRING,e)}return null},v.prototype._allow_regexp_or_xml=function(t){return t.type===p.RESERVED&&h(t.text,["return","case","throw","else","do","typeof","yield"])||t.type===p.END_EXPR&&")"===t.text&&t.opened.previous.type===p.RESERVED&&h(t.opened.previous.text,["if","while","for"])||h(t.type,[p.COMMENT,p.START_EXPR,p.START_BLOCK,p.START,p.END_BLOCK,p.OPERATOR,p.EQUALS,p.EOF,p.SEMICOLON,p.COMMA])},v.prototype._read_regexp=function(t,e){if("/"===t&&this._allow_regexp_or_xml(e)){for(var i=this._input.next(),n=!1,_=!1;this._input.hasNext()&&(n||_||this._input.peek()!==t)&&!this._input.testChar(u.newline);)i+=this._input.peek(),n?n=!1:(n="\\"===this._input.peek(),"["===this._input.peek()?_=!0:"]"===this._input.peek()&&(_=!1)),this._input.next();return this._input.peek()===t&&(i+=this._input.next(),i+=this._input.read(u.identifier)),this._create_token(p.STRING,i)}return null},v.prototype._read_xml=function(t,e){if(this._options.e4x&&"<"===t&&this._allow_regexp_or_xml(e)){var i="",n=this.__patterns.xml.read_match();if(n){for(var _=n[2].replace(/^{\s+/,"{").replace(/\s+}$/,"}"),s=0===_.indexOf("{"),a=0;n;){var r=!!n[1],o=n[2];if(!(n[n.length-1]||"![CDATA["===o.slice(0,8))&&(o===_||s&&o.replace(/^{\s+/,"{").replace(/\s+}$/,"}"))&&(r?--a:++a),i+=n[0],a<=0)break;n=this.__patterns.xml.read_match()}return n||(i+=this._input.match(/[\s\S]*/g)[0]),i=i.replace(u.allLineBreaks,"\n"),this._create_token(p.STRING,i)}}return null},v.prototype._read_string_recursive=function(t,e,i){var n,_;"'"===t?_=this.__patterns.single_quote:'"'===t?_=this.__patterns.double_quote:"`"===t?_=this.__patterns.template_text:"}"===t&&(_=this.__patterns.template_expression);for(var s=_.read(),a="";this._input.hasNext();){if((a=this._input.next())===t||!e&&u.newline.test(a)){this._input.back();break}"\\"===a&&this._input.hasNext()?("x"===(n=this._input.peek())||"u"===n?this.has_char_escapes=!0:"\r"===n&&"\n"===this._input.peek(1)&&this._input.next(),a+=this._input.next()):i&&("${"===i&&"$"===a&&"{"===this._input.peek()&&(a+=this._input.next()),i===a&&(a+="`"===t?this._read_string_recursive("}",e,"`"):this._read_string_recursive("`",e,"${"),this._input.hasNext()&&(a+=this._input.next()))),s+=a+=_.read()}return s},t.exports.d2=v,t.exports.o3=p,t.exports.L2=g.slice(),t.exports.O9=w.slice()}},e={};return function i(n){var _=e[n];if(void 0!==_)return _.exports;var s=e[n]={exports:{}};return t[n](s,s.exports,i),s.exports}(772)}()})); +//# sourceMappingURL=beautifier.min.js.map diff --git a/src/lib/lz4/README.md b/src/lib/lz4/README.md new file mode 100644 index 0000000..6fcf4f8 --- /dev/null +++ b/src/lib/lz4/README.md @@ -0,0 +1,52 @@ +## Purpose + +The purpose of this library is to implement LZ4 compression/decompression, +as documented at the official LZ4 repository: + +https://github.com/lz4/lz4/blob/dev/doc/lz4_Block_format.md + +The files in this directory are developed as a separate project at: + +https://github.com/gorhill/lz4-wasm + +## Files + +### `lz4-block-codec-any.js` + +The purpose is to instantiate a WebAssembly- or pure javascript-based +LZ4 block codec. + +If the chosen implementation is not specified, there will be an attempt to +create a WebAssembly-based instance. If for whatever reason this fails, a +pure javascript-based instance will be created. + +The script for either instance are dynamically loaded and only when needed, +such that no resources are wasted by keeping in memory code which won't be +used. + +### `lz4-block-codec-wasm.js` + +This contains the code to instantiate WebAssembly-based LZ4 block codec. Note +that the WebAssembly module is loaded using a `same-origin` fetch, hence +ensuring that no code outside the package is loaded. + +### `lz4-block-codec-js.js` + +This contains the code to instantiate pure javascript-based LZ4 block codec. + +This is used as a fallback implementation should WebAssembly not be available +for whatever reason. + +### `lz4-block-codec.wasm` + +This is the WebAssembly module, loaded by `lz4-block-codec-wasm.js` using a +`same-origin` fetch. + +### `lz4-block-codec.wat` + +The WebAssembly source code used to generate the WebAssembly module `lz4-block-codec.wasm`. + + wat2wasm ./lz4-block-codec.wat -o ./lz4-block-codec.wasm + wasm-opt ./lz4-block-codec.wasm -O4 -o ./lz4-block-codec.wasm + +You can get `wat2wasm` at <https://github.com/WebAssembly/wabt>, and `wasm-opt` at <https://github.com/WebAssembly/binaryen>. diff --git a/src/lib/lz4/lz4-block-codec-any.js b/src/lib/lz4/lz4-block-codec-any.js new file mode 100644 index 0000000..daf141b --- /dev/null +++ b/src/lib/lz4/lz4-block-codec-any.js @@ -0,0 +1,151 @@ +/******************************************************************************* + + lz4-block-codec-any.js + A wrapper to instantiate a wasm- and/or js-based LZ4 block + encoder/decoder. + Copyright (C) 2018 Raymond Hill + + BSD-2-Clause License (http://www.opensource.org/licenses/bsd-license.php) + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are + met: + + 1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + 2. Redistributions in binary form must reproduce the above + copyright notice, this list of conditions and the following disclaimer + in the documentation and/or other materials provided with the + distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + + Home: https://github.com/gorhill/lz4-wasm + + I used the same license as the one picked by creator of LZ4 out of respect + for his creation, see https://lz4.github.io/lz4/ + +*/ + +'use strict'; + +/******************************************************************************/ + +(function(context) { // >>>> Start of private namespace + +/******************************************************************************/ + +const wd = (function() { + let url = document.currentScript.src; + let match = /[^\/]+$/.exec(url); + return match !== null ? + url.slice(0, match.index) : + ''; +})(); + +const removeScript = function(script) { + if ( !script ) { return; } + if ( script.parentNode === null ) { return; } + script.parentNode.removeChild(script); +}; + +const createInstanceWASM = function() { + if ( context.LZ4BlockWASM instanceof Function ) { + const instance = new context.LZ4BlockWASM(); + return instance.init().then(ok => ok ? instance : null); + } + if ( context.LZ4BlockWASM === null ) { + return Promise.resolve(null); + } + return new Promise(resolve => { + const script = document.createElement('script'); + script.src = wd + 'lz4-block-codec-wasm.js'; + script.addEventListener('load', ( ) => { + if ( context.LZ4BlockWASM instanceof Function === false ) { + context.LZ4BlockWASM = null; + resolve(null); + return; + } + const instance = new context.LZ4BlockWASM(); + instance.init().then(ok => { resolve(ok ? instance : null); }); + }); + script.addEventListener('error', ( ) => { + context.LZ4BlockWASM = null; + resolve(null); + }); + document.head.appendChild(script); + removeScript(script); + }); +}; + +const createInstanceJS = function() { + if ( context.LZ4BlockJS instanceof Function ) { + const instance = new context.LZ4BlockJS(); + return instance.init().then(ok => ok ? instance : null); + } + if ( context.LZ4BlockJS === null ) { + return Promise.resolve(null); + } + return new Promise(resolve => { + const script = document.createElement('script'); + script.src = wd + 'lz4-block-codec-js.js'; + script.addEventListener('load', ( ) => { + if ( context.LZ4BlockJS instanceof Function === false ) { + context.LZ4BlockJS = null; + resolve(null); + return; + } + const instance = new context.LZ4BlockJS(); + instance.init().then(ok => { resolve(ok ? instance : null); }); + }); + script.addEventListener('error', ( ) => { + context.LZ4BlockJS = null; + resolve(null); + }); + document.head.appendChild(script); + removeScript(script); + }); +}; + +/******************************************************************************/ + +context.lz4BlockCodec = { + createInstance: function(flavor) { + let instantiator; + if ( flavor === 'wasm' ) { + instantiator = createInstanceWASM; + } else if ( flavor === 'js' ) { + instantiator = createInstanceJS; + } else { + instantiator = createInstanceWASM || createInstanceJS; + } + return (instantiator)().then(instance => { + if ( instance ) { return instance; } + if ( flavor === undefined ) { + return createInstanceJS(); + } + return null; + }); + }, + reset: function() { + context.LZ4BlockWASM = undefined; + context.LZ4BlockJS = undefined; + } +}; + +/******************************************************************************/ + +})(this || self); // <<<< End of private namespace + +/******************************************************************************/ diff --git a/src/lib/lz4/lz4-block-codec-js.js b/src/lib/lz4/lz4-block-codec-js.js new file mode 100644 index 0000000..809da66 --- /dev/null +++ b/src/lib/lz4/lz4-block-codec-js.js @@ -0,0 +1,297 @@ +/******************************************************************************* + + lz4-block-codec-js.js + A javascript wrapper around a pure javascript implementation of + LZ4 block format codec. + Copyright (C) 2018 Raymond Hill + + BSD-2-Clause License (http://www.opensource.org/licenses/bsd-license.php) + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are + met: + + 1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + 2. Redistributions in binary form must reproduce the above + copyright notice, this list of conditions and the following disclaimer + in the documentation and/or other materials provided with the + distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + + Home: https://github.com/gorhill/lz4-wasm + + I used the same license as the one picked by creator of LZ4 out of respect + for his creation, see https://lz4.github.io/lz4/ + +*/ + +'use strict'; + +/******************************************************************************/ + +(function(context) { // >>>> Start of private namespace + +/******************************************************************************/ + +const growOutputBuffer = function(instance, size) { + if ( + instance.outputBuffer === undefined || + instance.outputBuffer.byteLength < size + ) { + instance.outputBuffer = new ArrayBuffer(size + 0xFFFF & 0x7FFF0000); + } + return instance.outputBuffer; +}; + +const encodeBound = function(size) { + return size > 0x7E000000 ? + 0 : + size + (size / 255 | 0) + 16; +}; + +const encodeBlock = function(instance, iBuf, oOffset) { + let iLen = iBuf.byteLength; + if ( iLen >= 0x7E000000 ) { throw new RangeError(); } + + // "The last match must start at least 12 bytes before end of block" + let lastMatchPos = iLen - 12; + + // "The last 5 bytes are always literals" + let lastLiteralPos = iLen - 5; + + if ( instance.hashTable === undefined ) { + instance.hashTable = new Int32Array(65536); + } + instance.hashTable.fill(-65536); + + if ( iBuf instanceof ArrayBuffer ) { + iBuf = new Uint8Array(iBuf); + } + + let oLen = oOffset + encodeBound(iLen); + let oBuf = new Uint8Array(growOutputBuffer(instance, oLen), 0, oLen); + let iPos = 0; + let oPos = oOffset; + let anchorPos = 0; + + // sequence-finding loop + for (;;) { + let refPos; + let mOffset; + let sequence = iBuf[iPos] << 8 | iBuf[iPos+1] << 16 | iBuf[iPos+2] << 24; + + // match-finding loop + while ( iPos <= lastMatchPos ) { + sequence = sequence >>> 8 | iBuf[iPos+3] << 24; + let hash = (sequence * 0x9E37 & 0xFFFF) + (sequence * 0x79B1 >>> 16) & 0xFFFF; + refPos = instance.hashTable[hash]; + instance.hashTable[hash] = iPos; + mOffset = iPos - refPos; + if ( + mOffset < 65536 && + iBuf[refPos+0] === ((sequence ) & 0xFF) && + iBuf[refPos+1] === ((sequence >>> 8) & 0xFF) && + iBuf[refPos+2] === ((sequence >>> 16) & 0xFF) && + iBuf[refPos+3] === ((sequence >>> 24) & 0xFF) + ) { + break; + } + iPos += 1; + } + + // no match found + if ( iPos > lastMatchPos ) { break; } + + // match found + let lLen = iPos - anchorPos; + let mLen = iPos; + iPos += 4; refPos += 4; + while ( iPos < lastLiteralPos && iBuf[iPos] === iBuf[refPos] ) { + iPos += 1; refPos += 1; + } + mLen = iPos - mLen; + let token = mLen < 19 ? mLen - 4 : 15; + + // write token, length of literals if needed + if ( lLen >= 15 ) { + oBuf[oPos++] = 0xF0 | token; + let l = lLen - 15; + while ( l >= 255 ) { + oBuf[oPos++] = 255; + l -= 255; + } + oBuf[oPos++] = l; + } else { + oBuf[oPos++] = (lLen << 4) | token; + } + + // write literals + while ( lLen-- ) { + oBuf[oPos++] = iBuf[anchorPos++]; + } + + if ( mLen === 0 ) { break; } + + // write offset of match + oBuf[oPos+0] = mOffset; + oBuf[oPos+1] = mOffset >>> 8; + oPos += 2; + + // write length of match if needed + if ( mLen >= 19 ) { + let l = mLen - 19; + while ( l >= 255 ) { + oBuf[oPos++] = 255; + l -= 255; + } + oBuf[oPos++] = l; + } + + anchorPos = iPos; + } + + // last sequence is literals only + let lLen = iLen - anchorPos; + if ( lLen >= 15 ) { + oBuf[oPos++] = 0xF0; + let l = lLen - 15; + while ( l >= 255 ) { + oBuf[oPos++] = 255; + l -= 255; + } + oBuf[oPos++] = l; + } else { + oBuf[oPos++] = lLen << 4; + } + while ( lLen-- ) { + oBuf[oPos++] = iBuf[anchorPos++]; + } + + return new Uint8Array(oBuf.buffer, 0, oPos); +}; + +const decodeBlock = function(instance, iBuf, iOffset, oLen) { + let iLen = iBuf.byteLength; + let oBuf = new Uint8Array(growOutputBuffer(instance, oLen), 0, oLen); + let iPos = iOffset, oPos = 0; + + while ( iPos < iLen ) { + let token = iBuf[iPos++]; + + // literals + let clen = token >>> 4; + + // length of literals + if ( clen !== 0 ) { + if ( clen === 15 ) { + let l; + for (;;) { + l = iBuf[iPos++]; + if ( l !== 255 ) { break; } + clen += 255; + } + clen += l; + } + + // copy literals + let end = iPos + clen; + while ( iPos < end ) { + oBuf[oPos++] = iBuf[iPos++]; + } + if ( iPos === iLen ) { break; } + } + + // match + let mOffset = iBuf[iPos+0] | (iBuf[iPos+1] << 8); + if ( mOffset === 0 || mOffset > oPos ) { return; } + iPos += 2; + + // length of match + clen = (token & 0x0F) + 4; + if ( clen === 19 ) { + let l; + for (;;) { + l = iBuf[iPos++]; + if ( l !== 255 ) { break; } + clen += 255; + } + clen += l; + } + + // copy match + let mPos = oPos - mOffset; + let end = oPos + clen; + while ( oPos < end ) { + oBuf[oPos++] = oBuf[mPos++]; + } + } + + return oBuf; +}; + +/******************************************************************************/ + +context.LZ4BlockJS = function() { + this.hashTable = undefined; + this.outputBuffer = undefined; +}; + +context.LZ4BlockJS.prototype = { + flavor: 'js', + init: function() { + return Promise.resolve(true); + }, + + reset: function() { + this.hashTable = undefined; + this.outputBuffer = undefined; + }, + + bytesInUse: function() { + let bytesInUse = 0; + if ( this.hashTable !== undefined ) { + bytesInUse += this.hashTable.byteLength; + } + if ( this.outputBuffer !== undefined ) { + bytesInUse += this.outputBuffer.byteLength; + } + return bytesInUse; + }, + + encodeBlock: function(input, outputOffset) { + if ( input instanceof ArrayBuffer ) { + input = new Uint8Array(input); + } else if ( input instanceof Uint8Array === false ) { + throw new TypeError(); + } + return encodeBlock(this, input, outputOffset); + }, + + decodeBlock: function(input, inputOffset, outputSize) { + if ( input instanceof ArrayBuffer ) { + input = new Uint8Array(input); + } else if ( input instanceof Uint8Array === false ) { + throw new TypeError(); + } + return decodeBlock(this, input, inputOffset, outputSize); + } +}; + +/******************************************************************************/ + +})(this || self); // <<<< End of private namespace + +/******************************************************************************/ diff --git a/src/lib/lz4/lz4-block-codec-wasm.js b/src/lib/lz4/lz4-block-codec-wasm.js new file mode 100644 index 0000000..46a9a67 --- /dev/null +++ b/src/lib/lz4/lz4-block-codec-wasm.js @@ -0,0 +1,195 @@ +/******************************************************************************* + + lz4-block-codec-wasm.js + A javascript wrapper around a WebAssembly implementation of + LZ4 block format codec. + Copyright (C) 2018 Raymond Hill + + BSD-2-Clause License (http://www.opensource.org/licenses/bsd-license.php) + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are + met: + + 1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + 2. Redistributions in binary form must reproduce the above + copyright notice, this list of conditions and the following disclaimer + in the documentation and/or other materials provided with the + distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + + Home: https://github.com/gorhill/lz4-wasm + + I used the same license as the one picked by creator of LZ4 out of respect + for his creation, see https://lz4.github.io/lz4/ + +*/ + +/* global WebAssembly */ + +'use strict'; + +/******************************************************************************/ + +(function(context) { // >>>> Start of private namespace + +/******************************************************************************/ + +const wd = (function() { + let url = document.currentScript.src; + let match = /[^\/]+$/.exec(url); + return match !== null ? + url.slice(0, match.index) : + ''; +})(); + +const growMemoryTo = function(wasmInstance, byteLength) { + let lz4api = wasmInstance.exports; + let neededByteLength = lz4api.getLinearMemoryOffset() + byteLength; + let pageCountBefore = lz4api.memory.buffer.byteLength >>> 16; + let pageCountAfter = (neededByteLength + 65535) >>> 16; + if ( pageCountAfter > pageCountBefore ) { + lz4api.memory.grow(pageCountAfter - pageCountBefore); + } + return lz4api.memory.buffer; +}; + +const encodeBlock = function(wasmInstance, inputArray, outputOffset) { + let lz4api = wasmInstance.exports; + let mem0 = lz4api.getLinearMemoryOffset(); + let hashTableSize = 65536 * 4; + let inputSize = inputArray.byteLength; + if ( inputSize >= 0x7E000000 ) { throw new RangeError(); } + let memSize = + hashTableSize + + inputSize + + outputOffset + lz4api.lz4BlockEncodeBound(inputSize); + let memBuffer = growMemoryTo(wasmInstance, memSize); + let hashTable = new Int32Array(memBuffer, mem0, 65536); + hashTable.fill(-65536, 0, 65536); + let inputMem = new Uint8Array(memBuffer, mem0 + hashTableSize, inputSize); + inputMem.set(inputArray); + let outputSize = lz4api.lz4BlockEncode( + mem0 + hashTableSize, + inputSize, + mem0 + hashTableSize + inputSize + outputOffset + ); + if ( outputSize === 0 ) { return; } + let outputArray = new Uint8Array( + memBuffer, + mem0 + hashTableSize + inputSize, + outputOffset + outputSize + ); + return outputArray; +}; + +const decodeBlock = function(wasmInstance, inputArray, inputOffset, outputSize) { + let inputSize = inputArray.byteLength; + let lz4api = wasmInstance.exports; + let mem0 = lz4api.getLinearMemoryOffset(); + let memSize = inputSize + outputSize; + let memBuffer = growMemoryTo(wasmInstance, memSize); + let inputArea = new Uint8Array(memBuffer, mem0, inputSize); + inputArea.set(inputArray); + outputSize = lz4api.lz4BlockDecode( + mem0 + inputOffset, + inputSize - inputOffset, + mem0 + inputSize + ); + if ( outputSize === 0 ) { return; } + return new Uint8Array(memBuffer, mem0 + inputSize, outputSize); +}; + +/******************************************************************************/ + +context.LZ4BlockWASM = function() { + this.lz4wasmInstance = undefined; +}; + +context.LZ4BlockWASM.prototype = { + flavor: 'wasm', + + init: function() { + if ( + typeof WebAssembly !== 'object' || + typeof WebAssembly.instantiateStreaming !== 'function' + ) { + this.lz4wasmInstance = null; + } + if ( this.lz4wasmInstance === null ) { + return Promise.resolve(false); + } + if ( this.lz4wasmInstance instanceof WebAssembly.Instance ) { + return Promise.resolve(true); + } + if ( this.lz4wasmInstance === undefined ) { + this.lz4wasmInstance = fetch( + wd + 'lz4-block-codec.wasm', + { mode: 'same-origin' } + ).then( + WebAssembly.instantiateStreaming + ).then(result => { + this.lz4wasmInstance = result && result.instance || null; + }).catch(reason => { + this.lz4wasmInstance = null; + console.info(reason); + }).then(( ) => + this.lz4wasmInstance !== null + ); + } + return this.lz4wasmInstance; + }, + + reset: function() { + this.lz4wasmInstance = undefined; + }, + + bytesInUse: function() { + return this.lz4wasmInstance instanceof WebAssembly.Instance ? + this.lz4wasmInstance.exports.memory.buffer.byteLength : + 0; + }, + + encodeBlock: function(input, outputOffset) { + if ( this.lz4wasmInstance instanceof WebAssembly.Instance === false ) { + throw new Error('LZ4BlockWASM: not initialized'); + } + if ( input instanceof ArrayBuffer ) { + input = new Uint8Array(input); + } else if ( input instanceof Uint8Array === false ) { + throw new TypeError(); + } + return encodeBlock(this.lz4wasmInstance, input, outputOffset); + }, + + decodeBlock: function(input, inputOffset, outputSize) { + if ( this.lz4wasmInstance instanceof WebAssembly.Instance === false ) { + throw new Error('LZ4BlockWASM: not initialized'); + } + if ( input instanceof ArrayBuffer ) { + input = new Uint8Array(input); + } else if ( input instanceof Uint8Array === false ) { + throw new TypeError(); + } + return decodeBlock(this.lz4wasmInstance, input, inputOffset, outputSize); + } +}; + +/******************************************************************************/ + +})(this || self); // <<<< End of private namespace + +/******************************************************************************/ diff --git a/src/lib/lz4/lz4-block-codec.wasm b/src/lib/lz4/lz4-block-codec.wasm Binary files differnew file mode 100644 index 0000000..c57b079 --- /dev/null +++ b/src/lib/lz4/lz4-block-codec.wasm diff --git a/src/lib/lz4/lz4-block-codec.wat b/src/lib/lz4/lz4-block-codec.wat new file mode 100644 index 0000000..4d9cf42 --- /dev/null +++ b/src/lib/lz4/lz4-block-codec.wat @@ -0,0 +1,745 @@ +;; +;; lz4-block-codec.wat: a WebAssembly implementation of LZ4 block format codec +;; Copyright (C) 2018 Raymond Hill +;; +;; BSD-2-Clause License (http://www.opensource.org/licenses/bsd-license.php) +;; +;; Redistribution and use in source and binary forms, with or without +;; modification, are permitted provided that the following conditions are +;; met: +;; +;; 1. Redistributions of source code must retain the above copyright +;; notice, this list of conditions and the following disclaimer. +;; +;; 2. Redistributions in binary form must reproduce the above +;; copyright notice, this list of conditions and the following disclaimer +;; in the documentation and/or other materials provided with the +;; distribution. +;; +;; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +;; "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +;; LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +;; A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +;; OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +;; SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +;; LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +;; DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +;; THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +;; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +;; OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +;; +;; Home: https://github.com/gorhill/lz4-wasm +;; +;; I used the same license as the one picked by creator of LZ4 out of respect +;; for his creation, see https://lz4.github.io/lz4/ +;; + +(module +;; +;; module start +;; + +;; (func $log (import "imports" "log") (param i32 i32 i32)) + +(memory (export "memory") 1) + +;; +;; Public functions +;; + +;; +;; Return an offset to the first byte of usable linear memory. +;; Might be useful in the future to reserve memory space for whatever purpose, +;; like config variables, etc. +;; +(func $getLinearMemoryOffset (export "getLinearMemoryOffset") + (result i32) + i32.const 0 +) + +;; +;; unsigned int lz4BlockEncodeBound() +;; +;; Return the maximum size of the output buffer holding the compressed data. +;; +;; Reference implementation: +;; https://github.com/lz4/lz4/blob/dev/lib/lz4.h#L156 +;; +(func (export "lz4BlockEncodeBound") + (param $ilen i32) + (result i32) + local.get $ilen + i32.const 0x7E000000 + i32.gt_u + if + i32.const 0 + return + end + local.get $ilen + local.get $ilen + i32.const 255 + i32.div_u + i32.add + i32.const 16 + i32.add +) + +;; +;; unsigned int lz4BlockEncode( +;; unsigned int inPtr, +;; unsigned int ilen, +;; unsigned int outPtr +;; ) +;; +;; https://github.com/lz4/lz4/blob/dev/lib/lz4.c#L651 +;; +;; The implementation below is modified from the reference one. +;; +;; - There is no skip adjustment for repeated failure to find a match. +;; +;; - All configurable values are hard-coded to match the generic version +;; of the compressor. +;; +;; Note the size of the input block is NOT encoded in the output buffer, it +;; is for the caller to figure how they will save that information on +;; their side. At this point it is probably a trivial amount of work to +;; implement the LZ4 frame format, which encode the content size, but this +;; is for another day. +;; +(func $lz4BlockEncode (export "lz4BlockEncode") + (param $inPtr i32) ;; pointer to start of input buffer + (param $ilen i32) ;; size of input buffer + (param $outPtr i32) ;; pointer to start of output buffer + (result i32) + (local $hashPtrBeg i32) ;; start of hash buffer + (local $hashPtr i32) ;; current hash entry + (local $anchorPtr i32) ;; anchor position in input + (local $inPtrEnd1 i32) ;; point in input at which match-finding must cease + (local $inPtrEnd2 i32) ;; point in input at which match-length finding must cease + (local $inPtrEnd i32) ;; point to end of input + (local $outPtrBeg i32) ;; start of output buffer + (local $refPtr i32) ;; start of match in input + (local $seq32 i32) ;; 4-byte value from current input position + (local $llen i32) ;; length of found literals + (local $moffset i32) ;; offset to found match from current input position + (local $mlen i32) ;; length of found match + local.get $ilen ;; empty input = empty output + i32.const 0x7E000000 ;; max input size: 0x7E000000 + i32.gt_u + if + i32.const 0 + return + end + local.get $ilen ;; "blocks < 13 bytes cannot be compressed" + i32.const 13 + i32.lt_u + if + i32.const 0 + return + end + call $getLinearMemoryOffset ;; hash table is at start of usable memory + local.set $hashPtrBeg + local.get $inPtr + local.tee $anchorPtr + local.get $ilen + i32.add + local.tee $inPtrEnd + i32.const -5 ;; "The last 5 bytes are always literals." + i32.add + local.tee $inPtrEnd2 + i32.const -7 ;; "The last match must start at least 12 bytes before end of block" + i32.add + local.set $inPtrEnd1 + local.get $outPtr + local.set $outPtrBeg + ;; + ;; sequence processing loop + ;; + block $noMoreSequence loop $nextSequence + local.get $inPtr + local.get $inPtrEnd1 + i32.ge_u ;; 5 or less bytes left? + br_if $noMoreSequence + local.get $inPtr ;; first sequence of 3 bytes before match-finding loop + i32.load8_u + i32.const 8 + i32.shl + local.get $inPtr + i32.load8_u offset=1 + i32.const 16 + i32.shl + i32.or + local.get $inPtr + i32.load8_u offset=2 + i32.const 24 + i32.shl + i32.or + local.set $seq32 + ;; + ;; match-finding loop + ;; + loop $findMatch block $noMatchFound + local.get $inPtr + local.get $inPtrEnd2 + i32.gt_u ;; less than 12 bytes left? + br_if $noMoreSequence + local.get $seq32 ;; update last byte of current sequence + i32.const 8 + i32.shr_u + local.get $inPtr + i32.load8_u offset=3 + i32.const 24 + i32.shl + i32.or + local.tee $seq32 + i32.const 0x9E3779B1 ;; compute 16-bit hash + i32.mul + i32.const 16 + i32.shr_u ;; hash value is at top of stack + i32.const 2 ;; lookup refPtr at hash entry + i32.shl + local.get $hashPtrBeg + i32.add + local.tee $hashPtr + i32.load + local.set $refPtr + local.get $hashPtr ;; update hash entry with inPtr + local.get $inPtr + i32.store + local.get $inPtr + local.get $refPtr + i32.sub + local.tee $moffset ;; remember match offset, we will need it in case of match + i32.const 0xFFFF + i32.gt_s ;; match offset > 65535 = unusable match + br_if $noMatchFound + ;; + ;; confirm match: different sequences can yield same hash + ;; compare-branch each byte to potentially save memory read ops + ;; + local.get $seq32 ;; byte 0 + i32.const 0xFF + i32.and + local.get $refPtr + i32.load8_u + i32.ne ;; refPtr[0] !== inPtr[0] + br_if $noMatchFound + local.get $seq32 ;; byte 1 + i32.const 8 + i32.shr_u + i32.const 0xFF + i32.and + local.get $refPtr + i32.load8_u offset=1 + i32.ne + br_if $noMatchFound ;; refPtr[1] !== inPtr[1] + local.get $seq32 ;; byte 2 + i32.const 16 + i32.shr_u + i32.const 0xFF + i32.and + local.get $refPtr + i32.load8_u offset=2 + i32.ne ;; refPtr[2] !== inPtr[2] + br_if $noMatchFound + local.get $seq32 ;; byte 3 + i32.const 24 + i32.shr_u + i32.const 0xFF + i32.and + local.get $refPtr + i32.load8_u offset=3 + i32.ne ;; refPtr[3] !== inPtr[3] + br_if $noMatchFound + ;; + ;; a valid match has been found at this point + ;; + local.get $inPtr ;; compute length of literals + local.get $anchorPtr + i32.sub + local.set $llen + local.get $inPtr ;; find match length + i32.const 4 ;; skip over confirmed 4-byte match + i32.add + local.set $inPtr + local.get $refPtr + i32.const 4 + i32.add + local.tee $mlen ;; remember refPtr to later compute match length + local.set $refPtr + block $endOfMatch loop ;; scan input buffer until match ends + local.get $inPtr + local.get $inPtrEnd2 + i32.ge_u + br_if $endOfMatch + local.get $inPtr + i32.load8_u + local.get $refPtr + i32.load8_u + i32.ne + br_if $endOfMatch + local.get $inPtr + i32.const 1 + i32.add + local.set $inPtr + local.get $refPtr + i32.const 1 + i32.add + local.set $refPtr + br 0 + end end $endOfMatch + ;; encode token + local.get $outPtr ;; output token + local.get $llen + local.get $refPtr + local.get $mlen + i32.sub + local.tee $mlen + call $writeToken + local.get $outPtr + i32.const 1 + i32.add + local.set $outPtr + local.get $llen ;; encode/write length of literals if needed + i32.const 15 + i32.ge_s + if + local.get $outPtr + local.get $llen + call $writeLength + local.set $outPtr + end + ;; copy literals + local.get $outPtr + local.get $anchorPtr + local.get $llen + call $copy + local.get $outPtr + local.get $llen + i32.add + local.set $outPtr + ;; encode match offset + local.get $outPtr + local.get $moffset + i32.store8 + local.get $outPtr + local.get $moffset + i32.const 8 + i32.shr_u + i32.store8 offset=1 + local.get $outPtr + i32.const 2 + i32.add + local.set $outPtr + local.get $mlen ;; encode/write length of match if needed + i32.const 15 + i32.ge_s + if + local.get $outPtr + local.get $mlen + call $writeLength + local.set $outPtr + end + local.get $inPtr ;; advance anchor to current position + local.set $anchorPtr + br $nextSequence + end $noMatchFound + local.get $inPtr ;; no match found: advance to next byte + i32.const 1 + i32.add + local.set $inPtr + br $findMatch end ;; match offset > 65535 = unusable match + end end $noMoreSequence + ;; + ;; generate last (match-less) sequence if compression succeeded + ;; + local.get $outPtr + local.get $outPtrBeg + i32.eq + if + i32.const 0 + return + end + local.get $outPtr + local.get $inPtrEnd + local.get $anchorPtr + i32.sub + local.tee $llen + i32.const 0 + call $writeToken + local.get $outPtr + i32.const 1 + i32.add + local.set $outPtr + local.get $llen + i32.const 15 + i32.ge_u + if + local.get $outPtr + local.get $llen + call $writeLength + local.set $outPtr + end + local.get $outPtr + local.get $anchorPtr + local.get $llen + call $copy + local.get $outPtr ;; return number of written bytes + local.get $llen + i32.add + local.get $outPtrBeg + i32.sub +) + +;; +;; unsigned int lz4BlockDecode( +;; unsigned int inPtr, +;; unsigned int ilen +;; unsigned int outPtr +;; ) +;; +;; Reference: +;; https://github.com/lz4/lz4/blob/dev/doc/lz4_Block_format.md +;; +(func (export "lz4BlockDecode") + (param $inPtr0 i32) ;; start of input buffer + (param $ilen i32) ;; length of input buffer + (param $outPtr0 i32) ;; start of output buffer + (result i32) + (local $inPtr i32) ;; current position in input buffer + (local $inPtrEnd i32) ;; end of input buffer + (local $outPtr i32) ;; current position in output buffer + (local $matchPtr i32) ;; position of current match + (local $token i32) ;; sequence token + (local $clen i32) ;; number of bytes to copy + (local $_ i32) ;; general purpose variable + local.get $ilen ;; if ( ilen == 0 ) { return 0; } + i32.eqz + if + i32.const 0 + return + end + local.get $inPtr0 + local.tee $inPtr ;; current position in input buffer + local.get $ilen + i32.add + local.set $inPtrEnd + local.get $outPtr0 ;; start of output buffer + local.set $outPtr ;; current position in output buffer + block $noMoreSequence loop ;; iterate through all sequences + local.get $inPtr + local.get $inPtrEnd + i32.ge_u + br_if $noMoreSequence ;; break when nothing left to read in input buffer + local.get $inPtr ;; read token -- consume one byte + i32.load8_u + local.get $inPtr + i32.const 1 + i32.add + local.set $inPtr + local.tee $token ;; extract length of literals from token + i32.const 4 + i32.shr_u + local.tee $clen ;; consume extra length bytes if present + i32.eqz + if else + local.get $clen + i32.const 15 + i32.eq + if loop + local.get $inPtr + i32.load8_u + local.get $inPtr + i32.const 1 + i32.add + local.set $inPtr + local.tee $_ + local.get $clen + i32.add + local.set $clen + local.get $_ + i32.const 255 + i32.eq + br_if 0 + end end + local.get $outPtr ;; copy literals to output buffer + local.get $inPtr + local.get $clen + call $copy + local.get $outPtr ;; advance output buffer pointer past copy + local.get $clen + i32.add + local.set $outPtr + local.get $clen ;; advance input buffer pointer past literals + local.get $inPtr + i32.add + local.tee $inPtr + local.get $inPtrEnd ;; exit if this is the last sequence + i32.eq + br_if $noMoreSequence + end + local.get $outPtr ;; read match offset + local.get $inPtr + i32.load8_u + local.get $inPtr + i32.load8_u offset=1 + i32.const 8 + i32.shl + i32.or + i32.sub + local.tee $matchPtr + local.get $outPtr ;; match position can't be outside input buffer bounds + i32.eq + br_if $noMoreSequence + local.get $matchPtr + local.get $inPtrEnd + i32.lt_u + br_if $noMoreSequence + local.get $inPtr ;; advance input pointer past match offset bytes + i32.const 2 + i32.add + local.set $inPtr + local.get $token ;; extract length of match from token + i32.const 15 + i32.and + i32.const 4 + i32.add + local.tee $clen + i32.const 19 ;; consume extra length bytes if present + i32.eq + if loop + local.get $inPtr + i32.load8_u + local.get $inPtr + i32.const 1 + i32.add + local.set $inPtr + local.tee $_ + local.get $clen + i32.add + local.set $clen + local.get $_ + i32.const 255 + i32.eq + br_if 0 + end end + local.get $outPtr ;; copy match to output buffer + local.get $matchPtr + local.get $clen + call $copy + local.get $clen ;; advance output buffer pointer past copy + local.get $outPtr + i32.add + local.set $outPtr + br 0 + end end $noMoreSequence + local.get $outPtr ;; return number of written bytes + local.get $outPtr0 + i32.sub +) + +;; +;; Private functions +;; + +;; +;; Encode a sequence token +;; +;; Reference documentation: +;; https://github.com/lz4/lz4/blob/dev/doc/lz4_Block_format.md +;; +(func $writeToken + (param $outPtr i32) + (param $llen i32) + (param $mlen i32) + local.get $outPtr + local.get $llen + i32.const 15 + local.get $llen + i32.const 15 + i32.lt_u + select + i32.const 4 + i32.shl + local.get $mlen + i32.const 15 + local.get $mlen + i32.const 15 + i32.lt_u + select + i32.or + i32.store8 +) + +;; +;; Encode and output length bytes. The return value is the pointer following +;; the last byte written. +;; +;; Reference documentation: +;; https://github.com/lz4/lz4/blob/dev/doc/lz4_Block_format.md +;; +(func $writeLength + (param $outPtr i32) + (param $len i32) + (result i32) + local.get $len + i32.const 15 + i32.sub + local.set $len + loop + local.get $outPtr + local.get $len + i32.const 255 + local.get $len + i32.const 255 + i32.lt_u + select + i32.store8 + local.get $outPtr + i32.const 1 + i32.add + local.set $outPtr + local.get $len + i32.const 255 + i32.sub + local.tee $len + i32.const 0 + i32.ge_s + br_if 0 + end + local.get $outPtr +) + +;; +;; Copy n bytes from source to destination. +;; +;; It is overlap-safe only from left-to-right -- which is only what is +;; required in the current module. +;; +(func $copy + (param $dst i32) + (param $src i32) + (param $len i32) + block $lessThan8 loop + local.get $len + i32.const 8 + i32.lt_u + br_if $lessThan8 + local.get $dst + local.get $src + i32.load8_u + i32.store8 + local.get $dst + local.get $src + i32.load8_u offset=1 + i32.store8 offset=1 + local.get $dst + local.get $src + i32.load8_u offset=2 + i32.store8 offset=2 + local.get $dst + local.get $src + i32.load8_u offset=3 + i32.store8 offset=3 + local.get $dst + local.get $src + i32.load8_u offset=4 + i32.store8 offset=4 + local.get $dst + local.get $src + i32.load8_u offset=5 + i32.store8 offset=5 + local.get $dst + local.get $src + i32.load8_u offset=6 + i32.store8 offset=6 + local.get $dst + local.get $src + i32.load8_u offset=7 + i32.store8 offset=7 + local.get $dst + i32.const 8 + i32.add + local.set $dst + local.get $src + i32.const 8 + i32.add + local.set $src + local.get $len + i32.const -8 + i32.add + local.set $len + br 0 + end end $lessThan8 + local.get $len + i32.const 4 + i32.ge_u + if + local.get $dst + local.get $src + i32.load8_u + i32.store8 + local.get $dst + local.get $src + i32.load8_u offset=1 + i32.store8 offset=1 + local.get $dst + local.get $src + i32.load8_u offset=2 + i32.store8 offset=2 + local.get $dst + local.get $src + i32.load8_u offset=3 + i32.store8 offset=3 + local.get $dst + i32.const 4 + i32.add + local.set $dst + local.get $src + i32.const 4 + i32.add + local.set $src + local.get $len + i32.const -4 + i32.add + local.set $len + end + local.get $len + i32.const 2 + i32.ge_u + if + local.get $dst + local.get $src + i32.load8_u + i32.store8 + local.get $dst + local.get $src + i32.load8_u offset=1 + i32.store8 offset=1 + local.get $dst + i32.const 2 + i32.add + local.set $dst + local.get $src + i32.const 2 + i32.add + local.set $src + local.get $len + i32.const -2 + i32.add + local.set $len + end + local.get $len + i32.eqz + if else + local.get $dst + local.get $src + i32.load8_u + i32.store8 + end +) + +;; +;; module end +;; +) diff --git a/src/lib/publicsuffixlist/publicsuffixlist.js b/src/lib/publicsuffixlist/publicsuffixlist.js new file mode 100644 index 0000000..6483c89 --- /dev/null +++ b/src/lib/publicsuffixlist/publicsuffixlist.js @@ -0,0 +1,641 @@ +/******************************************************************************* + + publicsuffixlist.js - an efficient javascript implementation to deal with + Mozilla Foundation's Public Suffix List <http://publicsuffix.org/list/> + + Copyright (C) 2013-present Raymond Hill + + License: pick the one which suits you: + GPL v3 see <https://www.gnu.org/licenses/gpl.html> + APL v2 see <http://www.apache.org/licenses/LICENSE-2.0> + +*/ + +/*! Home: https://github.com/gorhill/publicsuffixlist.js -- GPLv3 APLv2 */ + +/* globals WebAssembly, exports:true, module */ + +'use strict'; + +/******************************************************************************* + + Reference: + https://publicsuffix.org/list/ + + Excerpt: + + > Algorithm + > + > 1. Match domain against all rules and take note of the matching ones. + > 2. If no rules match, the prevailing rule is "*". + > 3. If more than one rule matches, the prevailing rule is the one which + is an exception rule. + > 4. If there is no matching exception rule, the prevailing rule is the + one with the most labels. + > 5. If the prevailing rule is a exception rule, modify it by removing + the leftmost label. + > 6. The public suffix is the set of labels from the domain which match + the labels of the prevailing rule, using the matching algorithm above. + > 7. The registered or registrable domain is the public suffix plus one + additional label. + +*/ + +/******************************************************************************/ + +export default (function() { +// >>>>>>>> start of anonymous namespace + +/******************************************************************************* + + Tree encoding in array buffer: + + Node: + + u8: length of char data + + u8: flags => bit 0: is_publicsuffix, bit 1: is_exception + + u16: length of array of children + + u32: char data or offset to char data + + u32: offset to array of children + = 12 bytes + + More bits in flags could be used; for example: + - to distinguish private suffixes + +*/ + + // i32 / i8 +const HOSTNAME_SLOT = 0; // jshint ignore:line +const LABEL_INDICES_SLOT = 256; // -- / 256 (256/2 => 128 labels max) +const RULES_PTR_SLOT = 100; // 100 / 400 (400-256=144 => 144>128) +const SUFFIX_NOT_FOUND_SLOT = 399; // -- / 399 (safe, see above) +const CHARDATA_PTR_SLOT = 101; // 101 / 404 +const EMPTY_STRING = ''; +const SELFIE_MAGIC = 2; + +let wasmMemory; +let pslBuffer32; +let pslBuffer8; +let pslByteLength = 0; +let hostnameArg = EMPTY_STRING; + +/******************************************************************************/ + +const fireChangedEvent = function() { + if ( typeof window !== 'object' ) { return; } + if ( window instanceof Object === false ) { return; } + if ( window.dispatchEvent instanceof Function === false ) { return; } + if ( window.CustomEvent instanceof Function === false ) { return; } + window.dispatchEvent(new CustomEvent('publicSuffixListChanged')); +}; + +/******************************************************************************/ + +const allocateBuffers = function(byteLength) { + pslByteLength = byteLength + 3 & ~3; + if ( + pslBuffer32 !== undefined && + pslBuffer32.byteLength >= pslByteLength + ) { + return; + } + if ( wasmMemory !== undefined ) { + const newPageCount = pslByteLength + 0xFFFF >>> 16; + const curPageCount = wasmMemory.buffer.byteLength >>> 16; + const delta = newPageCount - curPageCount; + if ( delta > 0 ) { + wasmMemory.grow(delta); + pslBuffer32 = new Uint32Array(wasmMemory.buffer); + pslBuffer8 = new Uint8Array(wasmMemory.buffer); + } + } else { + pslBuffer8 = new Uint8Array(pslByteLength); + pslBuffer32 = new Uint32Array(pslBuffer8.buffer); + } + hostnameArg = EMPTY_STRING; + pslBuffer8[LABEL_INDICES_SLOT] = 0; +}; + +/******************************************************************************/ + +// Parse and set a UTF-8 text-based suffix list. Format is same as found at: +// http://publicsuffix.org/list/ +// +// `toAscii` is a converter from unicode to punycode. Required since the +// Public Suffix List contains unicode characters. +// Suggestion: use <https://github.com/bestiejs/punycode.js> + +const parse = function(text, toAscii) { + // Use short property names for better minifying results + const rootRule = { + l: EMPTY_STRING, // l => label + f: 0, // f => flags + c: undefined // c => children + }; + + // Tree building + { + const compareLabels = function(a, b) { + let n = a.length; + let d = n - b.length; + if ( d !== 0 ) { return d; } + for ( let i = 0; i < n; i++ ) { + d = a.charCodeAt(i) - b.charCodeAt(i); + if ( d !== 0 ) { return d; } + } + return 0; + }; + + const addToTree = function(rule, exception) { + let node = rootRule; + let end = rule.length; + while ( end > 0 ) { + const beg = rule.lastIndexOf('.', end - 1); + const label = rule.slice(beg + 1, end); + end = beg; + + if ( Array.isArray(node.c) === false ) { + const child = { l: label, f: 0, c: undefined }; + node.c = [ child ]; + node = child; + continue; + } + + let left = 0; + let right = node.c.length; + while ( left < right ) { + const i = left + right >>> 1; + const d = compareLabels(label, node.c[i].l); + if ( d < 0 ) { + right = i; + if ( right === left ) { + const child = { + l: label, + f: 0, + c: undefined + }; + node.c.splice(left, 0, child); + node = child; + break; + } + continue; + } + if ( d > 0 ) { + left = i + 1; + if ( left === right ) { + const child = { + l: label, + f: 0, + c: undefined + }; + node.c.splice(right, 0, child); + node = child; + break; + } + continue; + } + /* d === 0 */ + node = node.c[i]; + break; + } + } + node.f |= 0b01; + if ( exception ) { + node.f |= 0b10; + } + }; + + // 2. If no rules match, the prevailing rule is "*". + addToTree('*', false); + + const mustPunycode = /[^a-z0-9.-]/; + const textEnd = text.length; + let lineBeg = 0; + + while ( lineBeg < textEnd ) { + let lineEnd = text.indexOf('\n', lineBeg); + if ( lineEnd === -1 ) { + lineEnd = text.indexOf('\r', lineBeg); + if ( lineEnd === -1 ) { + lineEnd = textEnd; + } + } + let line = text.slice(lineBeg, lineEnd).trim(); + lineBeg = lineEnd + 1; + + // Ignore comments + const pos = line.indexOf('//'); + if ( pos !== -1 ) { + line = line.slice(0, pos); + } + + // Ignore surrounding whitespaces + line = line.trim(); + if ( line.length === 0 ) { continue; } + + const exception = line.charCodeAt(0) === 0x21 /* '!' */; + if ( exception ) { + line = line.slice(1); + } + + if ( mustPunycode.test(line) ) { + line = toAscii(line.toLowerCase()); + } + + addToTree(line, exception); + } + } + + { + const labelToOffsetMap = new Map(); + const treeData = []; + const charData = []; + + const allocate = function(n) { + const ibuf = treeData.length; + for ( let i = 0; i < n; i++ ) { + treeData.push(0); + } + return ibuf; + }; + + const storeNode = function(ibuf, node) { + const nChars = node.l.length; + const nChildren = node.c !== undefined + ? node.c.length + : 0; + treeData[ibuf+0] = nChildren << 16 | node.f << 8 | nChars; + // char data + if ( nChars <= 4 ) { + let v = 0; + if ( nChars > 0 ) { + v |= node.l.charCodeAt(0); + if ( nChars > 1 ) { + v |= node.l.charCodeAt(1) << 8; + if ( nChars > 2 ) { + v |= node.l.charCodeAt(2) << 16; + if ( nChars > 3 ) { + v |= node.l.charCodeAt(3) << 24; + } + } + } + } + treeData[ibuf+1] = v; + } else { + let offset = labelToOffsetMap.get(node.l); + if ( offset === undefined ) { + offset = charData.length; + for ( let i = 0; i < nChars; i++ ) { + charData.push(node.l.charCodeAt(i)); + } + labelToOffsetMap.set(node.l, offset); + } + treeData[ibuf+1] = offset; + } + // child nodes + if ( Array.isArray(node.c) === false ) { + treeData[ibuf+2] = 0; + return; + } + + const iarray = allocate(nChildren * 3); + treeData[ibuf+2] = iarray; + for ( let i = 0; i < nChildren; i++ ) { + storeNode(iarray + i * 3, node.c[i]); + } + }; + + // First 512 bytes are reserved for internal use + allocate(512 >> 2); + + const iRootRule = allocate(3); + storeNode(iRootRule, rootRule); + treeData[RULES_PTR_SLOT] = iRootRule; + + const iCharData = treeData.length << 2; + treeData[CHARDATA_PTR_SLOT] = iCharData; + + const byteLength = (treeData.length << 2) + (charData.length + 3 & ~3); + allocateBuffers(byteLength); + pslBuffer32.set(treeData); + pslBuffer8.set(charData, treeData.length << 2); + } + + fireChangedEvent(); +}; + +/******************************************************************************/ + +const setHostnameArg = function(hostname) { + const buf = pslBuffer8; + if ( hostname === hostnameArg ) { return buf[LABEL_INDICES_SLOT]; } + if ( hostname === null || hostname.length === 0 ) { + hostnameArg = EMPTY_STRING; + return (buf[LABEL_INDICES_SLOT] = 0); + } + hostname = hostname.toLowerCase(); + hostnameArg = hostname; + let n = hostname.length; + if ( n > 255 ) { n = 255; } + buf[LABEL_INDICES_SLOT] = n; + let i = n; + let j = LABEL_INDICES_SLOT + 1; + while ( i-- ) { + const c = hostname.charCodeAt(i); + if ( c === 0x2E /* '.' */ ) { + buf[j+0] = i + 1; + buf[j+1] = i; + j += 2; + } + buf[i] = c; + } + buf[j] = 0; + return n; +}; + +/******************************************************************************/ + +// Returns an offset to the start of the public suffix. +// +// WASM-able, because no information outside the buffer content is required. + +const getPublicSuffixPosJS = function() { + const buf8 = pslBuffer8; + const buf32 = pslBuffer32; + const iCharData = buf32[CHARDATA_PTR_SLOT]; + + let iNode = pslBuffer32[RULES_PTR_SLOT]; + let cursorPos = -1; + let iLabel = LABEL_INDICES_SLOT; + + // Label-lookup loop + for (;;) { + // Extract label indices + const labelBeg = buf8[iLabel+1]; + const labelLen = buf8[iLabel+0] - labelBeg; + // Match-lookup loop: binary search + let r = buf32[iNode+0] >>> 16; + if ( r === 0 ) { break; } + const iCandidates = buf32[iNode+2]; + let l = 0; + let iFound = 0; + while ( l < r ) { + const iCandidate = l + r >>> 1; + const iCandidateNode = iCandidates + iCandidate + (iCandidate << 1); + const candidateLen = buf32[iCandidateNode+0] & 0x000000FF; + let d = labelLen - candidateLen; + if ( d === 0 ) { + const iCandidateChar = candidateLen <= 4 + ? iCandidateNode + 1 << 2 + : iCharData + buf32[iCandidateNode+1]; + for ( let i = 0; i < labelLen; i++ ) { + d = buf8[labelBeg+i] - buf8[iCandidateChar+i]; + if ( d !== 0 ) { break; } + } + } + if ( d < 0 ) { + r = iCandidate; + } else if ( d > 0 ) { + l = iCandidate + 1; + } else /* if ( d === 0 ) */ { + iFound = iCandidateNode; + break; + } + } + // 2. If no rules match, the prevailing rule is "*". + if ( iFound === 0 ) { + if ( buf32[iCandidates + 1] !== 0x2A /* '*' */ ) { break; } + buf8[SUFFIX_NOT_FOUND_SLOT] = 1; + iFound = iCandidates; + } + iNode = iFound; + // 5. If the prevailing rule is a exception rule, modify it by + // removing the leftmost label. + if ( (buf32[iNode+0] & 0x00000200) !== 0 ) { + if ( iLabel > LABEL_INDICES_SLOT ) { + return iLabel - 2; + } + break; + } + if ( (buf32[iNode+0] & 0x00000100) !== 0 ) { + cursorPos = iLabel; + } + if ( labelBeg === 0 ) { break; } + iLabel += 2; + } + + return cursorPos; +}; + +let getPublicSuffixPosWASM; +let getPublicSuffixPos = getPublicSuffixPosJS; + +/******************************************************************************/ + +const getPublicSuffix = function(hostname) { + if ( pslBuffer32 === undefined ) { return EMPTY_STRING; } + + const hostnameLen = setHostnameArg(hostname); + const buf8 = pslBuffer8; + if ( hostnameLen === 0 || buf8[0] === 0x2E /* '.' */ ) { + return EMPTY_STRING; + } + + const cursorPos = getPublicSuffixPos(); + if ( cursorPos === -1 ) { + return EMPTY_STRING; + } + + const beg = buf8[cursorPos + 1]; + return beg === 0 ? hostnameArg : hostnameArg.slice(beg); +}; + +/******************************************************************************/ + +const getDomain = function(hostname) { + if ( pslBuffer32 === undefined ) { return EMPTY_STRING; } + + const hostnameLen = setHostnameArg(hostname); + const buf8 = pslBuffer8; + if ( hostnameLen === 0 || buf8[0] === 0x2E /* '.' */ ) { + return EMPTY_STRING; + } + + const cursorPos = getPublicSuffixPos(); + if ( cursorPos === -1 || buf8[cursorPos + 1] === 0 ) { + return EMPTY_STRING; + } + + // 7. The registered or registrable domain is the public suffix plus one + // additional label. + const beg = buf8[cursorPos + 3]; + return beg === 0 ? hostnameArg : hostnameArg.slice(beg); +}; + +/******************************************************************************/ + +const suffixInPSL = function(hostname) { + if ( pslBuffer32 === undefined ) { return false; } + + const hostnameLen = setHostnameArg(hostname); + const buf8 = pslBuffer8; + if ( hostnameLen === 0 || buf8[0] === 0x2E /* '.' */ ) { + return false; + } + + buf8[SUFFIX_NOT_FOUND_SLOT] = 0; + const cursorPos = getPublicSuffixPos(); + return cursorPos !== -1 && + buf8[cursorPos + 1] === 0 && + buf8[SUFFIX_NOT_FOUND_SLOT] !== 1; +}; + +/******************************************************************************/ + +const toSelfie = function(encoder) { + if ( pslBuffer8 === undefined ) { return ''; } + if ( encoder instanceof Object ) { + const bufferStr = encoder.encode(pslBuffer8.buffer, pslByteLength); + return `${SELFIE_MAGIC}\t${bufferStr}`; + } + return { + magic: SELFIE_MAGIC, + buf32: Array.from( + new Uint32Array(pslBuffer8.buffer, 0, pslByteLength >>> 2) + ), + }; +}; + +const fromSelfie = function(selfie, decoder) { + let byteLength = 0; + if ( + typeof selfie === 'string' && + selfie.length !== 0 && + decoder instanceof Object + ) { + const pos = selfie.indexOf('\t'); + if ( pos === -1 || selfie.slice(0, pos) !== `${SELFIE_MAGIC}` ) { + return false; + } + const bufferStr = selfie.slice(pos + 1); + byteLength = decoder.decodeSize(bufferStr); + if ( byteLength === 0 ) { return false; } + allocateBuffers(byteLength); + decoder.decode(bufferStr, pslBuffer8.buffer); + } else if ( + selfie instanceof Object && + selfie.magic === SELFIE_MAGIC && + Array.isArray(selfie.buf32) + ) { + byteLength = selfie.buf32.length << 2; + allocateBuffers(byteLength); + pslBuffer32.set(selfie.buf32); + } else { + return false; + } + + // Important! + hostnameArg = EMPTY_STRING; + pslBuffer8[LABEL_INDICES_SLOT] = 0; + + fireChangedEvent(); + + return true; +}; + +/******************************************************************************/ + +// The WASM module is entirely optional, the JS implementation will be +// used should the WASM module be unavailable for whatever reason. + +const enableWASM = (( ) => { + let wasmPromise; + + const getWasmInstance = async function(wasmModuleFetcher, path) { + if ( typeof WebAssembly !== 'object' ) { return false; } + // The wasm code will work only if CPU is natively little-endian, + // as we use native uint32 array in our js code. + const uint32s = new Uint32Array(1); + const uint8s = new Uint8Array(uint32s.buffer); + uint32s[0] = 1; + if ( uint8s[0] !== 1 ) { return false; } + + try { + const module = await wasmModuleFetcher(`${path}publicsuffixlist`); + if ( module instanceof WebAssembly.Module === false ) { + return false; + } + const pageCount = pslBuffer8 !== undefined + ? pslBuffer8.byteLength + 0xFFFF >>> 16 + : 1; + const memory = new WebAssembly.Memory({ initial: pageCount }); + const instance = await WebAssembly.instantiate(module, { + imports: { memory } + }); + if ( instance instanceof WebAssembly.Instance === false ) { + return false; + } + const curPageCount = memory.buffer.byteLength >>> 16; + const newPageCount = pslBuffer8 !== undefined + ? pslBuffer8.byteLength + 0xFFFF >>> 16 + : 0; + if ( newPageCount > curPageCount ) { + memory.grow(newPageCount - curPageCount); + } + if ( pslBuffer32 !== undefined ) { + const buf8 = new Uint8Array(memory.buffer); + const buf32 = new Uint32Array(memory.buffer); + buf32.set(pslBuffer32); + pslBuffer8 = buf8; + pslBuffer32 = buf32; + } + wasmMemory = memory; + getPublicSuffixPosWASM = instance.exports.getPublicSuffixPos; + getPublicSuffixPos = getPublicSuffixPosWASM; + return true; + } catch(reason) { + console.info(reason); + } + return false; + }; + + return async function(wasmModuleFetcher, path) { + if ( getPublicSuffixPosWASM instanceof Function ) { return true; } + if ( wasmPromise instanceof Promise === false ) { + wasmPromise = getWasmInstance(wasmModuleFetcher, path); + } + return wasmPromise; + }; +})(); + +const disableWASM = function() { + if ( getPublicSuffixPosWASM instanceof Function ) { + getPublicSuffixPos = getPublicSuffixPosJS; + getPublicSuffixPosWASM = undefined; + } + if ( wasmMemory === undefined ) { return; } + if ( pslBuffer32 !== undefined ) { + const buf8 = new Uint8Array(pslByteLength); + const buf32 = new Uint32Array(buf8.buffer); + buf32.set(pslBuffer32); + pslBuffer8 = buf8; + pslBuffer32 = buf32; + } + wasmMemory = undefined; +}; + +/******************************************************************************/ + +return ({ + version: '2.0', + parse, + getDomain, + suffixInPSL, + getPublicSuffix, + toSelfie, fromSelfie, + disableWASM, enableWASM, +}); + +/******************************************************************************/ + +// <<<<<<<< end of anonymous namespace +})(); diff --git a/src/lib/publicsuffixlist/wasm/README.md b/src/lib/publicsuffixlist/wasm/README.md new file mode 100644 index 0000000..5c1c483 --- /dev/null +++ b/src/lib/publicsuffixlist/wasm/README.md @@ -0,0 +1,29 @@ +### For code reviewers + +All `wasm` files in that directory where created by compiling the +corresponding `wat` file using the command (using +`publicsuffixlist.wat`/`publicsuffixlist.wasm` as example): + + wat2wasm publicsuffixlist.wat -o publicsuffixlist.wasm + +Assuming: + +- The command is executed from within the present directory. + +### `wat2wasm` tool + +The `wat2wasm` tool can be downloaded from an official WebAssembly project: +<https://github.com/WebAssembly/wabt/releases>. + +### `wat2wasm` tool online + +You can also use the following online `wat2wasm` tool: +<https://webassembly.github.io/wabt/demo/wat2wasm/>. + +Just paste the whole content of the `wat` file to compile into the WAT pane. +Click "Download" button to retrieve the resulting `wasm` file. + +### See also + +For the curious, the following online tool allows you to find out the machine +code as a result from the WASM code: https://mbebenita.github.io/WasmExplorer/ diff --git a/src/lib/publicsuffixlist/wasm/publicsuffixlist.wasm b/src/lib/publicsuffixlist/wasm/publicsuffixlist.wasm Binary files differnew file mode 100644 index 0000000..1f7ca0c --- /dev/null +++ b/src/lib/publicsuffixlist/wasm/publicsuffixlist.wasm diff --git a/src/lib/publicsuffixlist/wasm/publicsuffixlist.wat b/src/lib/publicsuffixlist/wasm/publicsuffixlist.wat new file mode 100644 index 0000000..8ea7381 --- /dev/null +++ b/src/lib/publicsuffixlist/wasm/publicsuffixlist.wat @@ -0,0 +1,322 @@ +;; +;; uBlock Origin - a browser extension to block requests. +;; Copyright (C) 2019-present Raymond Hill +;; +;; License: pick the one which suits you: +;; GPL v3 see <https://www.gnu.org/licenses/gpl.html> +;; APL v2 see <http://www.apache.org/licenses/LICENSE-2.0> +;; +;; Home: https://github.com/gorhill/publicsuffixlist.js +;; File: publicsuffixlist.wat +;; +;; Description: WebAssembly implementation for core lookup method in +;; publicsuffixlist.js +;; +;; How to compile: +;; +;; wat2wasm publicsuffixlist.wat -o publicsuffixlist.wasm +;; +;; The `wat2wasm` tool can be downloaded from an official WebAssembly +;; project: +;; https://github.com/WebAssembly/wabt/releases + + +(module +;; +;; module start +;; + +(memory (import "imports" "memory") 1) + +;; +;; Tree encoding in array buffer: +;; +;; Node: +;; + u8: length of char data +;; + u8: flags => bit 0: is_publicsuffix, bit 1: is_exception +;; + u16: length of array of children +;; + u32: char data or offset to char data +;; + u32: offset to array of children +;; = 12 bytes +;; +;; // i32 / i8 +;; const HOSTNAME_SLOT = 0; // jshint ignore:line +;; const LABEL_INDICES_SLOT = 256; // -- / 256 +;; const RULES_PTR_SLOT = 100; // 100 / 400 +;; const SUFFIX_NOT_FOUND_SLOT = 399; // -- / 399 +;; const CHARDATA_PTR_SLOT = 101; // 101 / 404 +;; const EMPTY_STRING = ''; +;; const SELFIE_MAGIC = 2; +;; + +;; +;; Public functions +;; + +;; +;; unsigned int getPublicSuffixPos() +;; +;; Returns an offset to the start of the public suffix. +;; +(func (export "getPublicSuffixPos") + (result i32) ;; result = match index, -1 = miss + (local $iCharData i32) ;; offset to start of character data + (local $iNode i32) ;; offset to current node + (local $iLabel i32) ;; offset to label indices + (local $cursorPos i32) ;; position of cursor within hostname argument + (local $labelBeg i32) + (local $labelLen i32) + (local $nCandidates i32) + (local $iCandidates i32) + (local $iFound i32) + (local $l i32) + (local $r i32) + (local $d i32) + (local $iCandidate i32) + (local $iCandidateNode i32) + (local $candidateLen i32) + (local $iCandidateChar i32) + (local $_1 i32) + (local $_2 i32) + (local $_3 i32) + ;; + ;; const iCharData = buf32[CHARDATA_PTR_SLOT]; + i32.const 404 + i32.load + local.set $iCharData + ;; let iNode = pslBuffer32[RULES_PTR_SLOT]; + i32.const 400 + i32.load + i32.const 2 + i32.shl + local.set $iNode + ;; let iLabel = LABEL_INDICES_SLOT; + i32.const 256 + local.set $iLabel + ;; let cursorPos = -1; + i32.const -1 + local.set $cursorPos + ;; label-lookup loop + ;; for (;;) { + block $labelLookupDone loop $labelLookup + ;; // Extract label indices + ;; const labelBeg = buf8[iLabel+1]; + ;; const labelLen = buf8[iLabel+0] - labelBeg; + local.get $iLabel + i32.load8_u + local.get $iLabel + i32.load8_u offset=1 + local.tee $labelBeg + i32.sub + local.set $labelLen + ;; // Match-lookup loop: binary search + ;; let r = buf32[iNode+0] >>> 16; + ;; if ( r === 0 ) { break; } + local.get $iNode + i32.load16_u offset=2 + local.tee $r + i32.eqz + br_if $labelLookupDone + ;; const iCandidates = buf32[iNode+2]; + local.get $iNode + i32.load offset=8 + i32.const 2 + i32.shl + local.set $iCandidates + ;; let l = 0; + ;; let iFound = 0; + i32.const 0 + local.tee $l + local.set $iFound + ;; while ( l < r ) { + block $binarySearchDone loop $binarySearch + local.get $l + local.get $r + i32.ge_u + br_if $binarySearchDone + ;; const iCandidate = l + r >>> 1; + local.get $l + local.get $r + i32.add + i32.const 1 + i32.shr_u + local.tee $iCandidate + ;; const iCandidateNode = iCandidates + iCandidate + (iCandidate << 1); + i32.const 2 + i32.shl + local.tee $_1 + local.get $_1 + i32.const 1 + i32.shl + i32.add + local.get $iCandidates + i32.add + local.tee $iCandidateNode + ;; const candidateLen = buf32[iCandidateNode+0] & 0x000000FF; + i32.load8_u + local.set $candidateLen + ;; let d = labelLen - candidateLen; + local.get $labelLen + local.get $candidateLen + i32.sub + local.tee $d + ;; if ( d === 0 ) { + i32.eqz + if + ;; const iCandidateChar = candidateLen <= 4 + local.get $candidateLen + i32.const 4 + i32.le_u + if + ;; ? iCandidateNode + 1 << 2 + local.get $iCandidateNode + i32.const 4 + i32.add + local.set $iCandidateChar + else + ;; : buf32[CHARDATA_PTR_SLOT] + buf32[iCandidateNode+1]; + local.get $iCharData + local.get $iCandidateNode + i32.load offset=4 + i32.add + local.set $iCandidateChar + end + ;; for ( let i = 0; i < labelLen; i++ ) { + local.get $labelBeg + local.tee $_1 + local.get $labelLen + i32.add + local.set $_3 + local.get $iCandidateChar + local.set $_2 + block $findDiffDone loop $findDiff + ;; d = buf8[labelBeg+i] - buf8[iCandidateChar+i]; + ;; if ( d !== 0 ) { break; } + local.get $_1 + i32.load8_u + local.get $_2 + i32.load8_u + i32.sub + local.tee $d + br_if $findDiffDone + local.get $_1 + i32.const 1 + i32.add + local.tee $_1 + local.get $_3 + i32.eq + br_if $findDiffDone + local.get $_2 + i32.const 1 + i32.add + local.set $_2 + br $findDiff + ;; } + end end + ;; } + end + ;; if ( d < 0 ) { + ;; r = iCandidate; + local.get $d + i32.const 0 + i32.lt_s + if + local.get $iCandidate + local.set $r + br $binarySearch + end + ;; } else if ( d > 0 ) { + ;; l = iCandidate + 1; + local.get $d + i32.const 0 + i32.gt_s + if + local.get $iCandidate + i32.const 1 + i32.add + local.set $l + br $binarySearch + end + ;; } else /* if ( d === 0 ) */ { + ;; iFound = iCandidateNode; + ;; break; + ;; } + local.get $iCandidateNode + local.set $iFound + end end + ;; } + ;; // 2. If no rules match, the prevailing rule is "*". + ;; if ( iFound === 0 ) { + ;; if ( buf32[iCandidates + 1] !== 0x2A /* '*' */ ) { break; } + ;; buf8[SUFFIX_NOT_FOUND_SLOT] = 1; + ;; iFound = iCandidates; + ;; } + local.get $iFound + i32.eqz + if + local.get $iCandidates + i32.load offset=4 + i32.const 0x2A + i32.ne + br_if $labelLookupDone + i32.const 399 + i32.const 1 + i32.store8 + local.get $iCandidates + local.set $iFound + end + ;; iNode = iFound; + local.get $iFound + local.tee $iNode + ;; // 5. If the prevailing rule is a exception rule, modify it by + ;; // removing the leftmost label. + ;; if ( (buf32[iNode+0] & 0x00000200) !== 0 ) { + ;; if ( iLabel > LABEL_INDICES_SLOT ) { + ;; return iLabel - 2; + ;; } + ;; break; + ;; } + i32.load8_u offset=1 + local.tee $_1 + i32.const 0x02 + i32.and + if + local.get $iLabel + i32.const 256 + i32.gt_u + if + local.get $iLabel + i32.const -2 + i32.add + return + end + br $labelLookupDone + end + ;; if ( (buf32[iNode+0] & 0x00000100) !== 0 ) { + ;; cursorPos = labelBeg; + ;; } + local.get $_1 + i32.const 0x01 + i32.and + if + local.get $iLabel + local.set $cursorPos + end + ;; if ( labelBeg === 0 ) { break; } + local.get $labelBeg + i32.eqz + br_if $labelLookupDone + ;; iLabel += 2; + local.get $iLabel + i32.const 2 + i32.add + local.set $iLabel + br $labelLookup + end end + local.get $cursorPos +) + +;; +;; module end +;; +) diff --git a/src/lib/punycode.js b/src/lib/punycode.js new file mode 100644 index 0000000..a7f990d --- /dev/null +++ b/src/lib/punycode.js @@ -0,0 +1,493 @@ +/*! https://mths.be/punycode v1.3.2 by @mathias */ +export default (function() { + /** + * The `punycode` object. + * @name punycode + * @type Object + */ + var punycode, + + /** Highest positive signed 32-bit float value */ + maxInt = 2147483647, // aka. 0x7FFFFFFF or 2^31-1 + + /** Bootstring parameters */ + base = 36, + tMin = 1, + tMax = 26, + skew = 38, + damp = 700, + initialBias = 72, + initialN = 128, // 0x80 + delimiter = '-', // '\x2D' + + /** Regular expressions */ + regexPunycode = /^xn--/, + regexNonASCII = /[^\x20-\x7E]/, // unprintable ASCII chars + non-ASCII chars + regexSeparators = /[\x2E\u3002\uFF0E\uFF61]/g, // RFC 3490 separators + + /** Error messages */ + errors = { + 'overflow': 'Overflow: input needs wider integers to process', + 'not-basic': 'Illegal input >= 0x80 (not a basic code point)', + 'invalid-input': 'Invalid input' + }, + + /** Convenience shortcuts */ + baseMinusTMin = base - tMin, + floor = Math.floor, + stringFromCharCode = String.fromCharCode, + + /** Temporary variable */ + key; + + /*--------------------------------------------------------------------------*/ + + /** + * A generic error utility function. + * @private + * @param {String} type The error type. + * @returns {Error} Throws a `RangeError` with the applicable error message. + */ + function error(type) { + throw new RangeError(errors[type]); + } + + /** + * A generic `Array#map` utility function. + * @private + * @param {Array} array The array to iterate over. + * @param {Function} callback The function that gets called for every array + * item. + * @returns {Array} A new array of values returned by the callback function. + */ + function map(array, fn) { + var length = array.length; + var result = []; + while (length--) { + result[length] = fn(array[length]); + } + return result; + } + + /** + * A simple `Array#map`-like wrapper to work with domain name strings or email + * addresses. + * @private + * @param {String} domain The domain name or email address. + * @param {Function} callback The function that gets called for every + * character. + * @returns {Array} A new string of characters returned by the callback + * function. + */ + function mapDomain(string, fn) { + var parts = string.split('@'); + var result = ''; + if (parts.length > 1) { + // In email addresses, only the domain name should be punycoded. Leave + // the local part (i.e. everything up to `@`) intact. + result = parts[0] + '@'; + string = parts[1]; + } + // Avoid `split(regex)` for IE8 compatibility. See #17. + string = string.replace(regexSeparators, '\x2E'); + var labels = string.split('.'); + var encoded = map(labels, fn).join('.'); + return result + encoded; + } + + /** + * Creates an array containing the numeric code points of each Unicode + * character in the string. While JavaScript uses UCS-2 internally, + * this function will convert a pair of surrogate halves (each of which + * UCS-2 exposes as separate characters) into a single code point, + * matching UTF-16. + * @see `punycode.ucs2.encode` + * @see <https://mathiasbynens.be/notes/javascript-encoding> + * @memberOf punycode.ucs2 + * @name decode + * @param {String} string The Unicode input string (UCS-2). + * @returns {Array} The new array of code points. + */ + function ucs2decode(string) { + var output = [], + counter = 0, + length = string.length, + value, + extra; + while (counter < length) { + value = string.charCodeAt(counter++); + if (value >= 0xD800 && value <= 0xDBFF && counter < length) { + // high surrogate, and there is a next character + extra = string.charCodeAt(counter++); + if ((extra & 0xFC00) == 0xDC00) { // low surrogate + output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000); + } else { + // unmatched surrogate; only append this code unit, in case the next + // code unit is the high surrogate of a surrogate pair + output.push(value); + counter--; + } + } else { + output.push(value); + } + } + return output; + } + + /** + * Creates a string based on an array of numeric code points. + * @see `punycode.ucs2.decode` + * @memberOf punycode.ucs2 + * @name encode + * @param {Array} codePoints The array of numeric code points. + * @returns {String} The new Unicode string (UCS-2). + */ + function ucs2encode(array) { + return map(array, function(value) { + var output = ''; + if (value > 0xFFFF) { + value -= 0x10000; + output += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800); + value = 0xDC00 | value & 0x3FF; + } + output += stringFromCharCode(value); + return output; + }).join(''); + } + + /** + * Converts a basic code point into a digit/integer. + * @see `digitToBasic()` + * @private + * @param {Number} codePoint The basic numeric code point value. + * @returns {Number} The numeric value of a basic code point (for use in + * representing integers) in the range `0` to `base - 1`, or `base` if + * the code point does not represent a value. + */ + function basicToDigit(codePoint) { + if (codePoint - 48 < 10) { + return codePoint - 22; + } + if (codePoint - 65 < 26) { + return codePoint - 65; + } + if (codePoint - 97 < 26) { + return codePoint - 97; + } + return base; + } + + /** + * Converts a digit/integer into a basic code point. + * @see `basicToDigit()` + * @private + * @param {Number} digit The numeric value of a basic code point. + * @returns {Number} The basic code point whose value (when used for + * representing integers) is `digit`, which needs to be in the range + * `0` to `base - 1`. If `flag` is non-zero, the uppercase form is + * used; else, the lowercase form is used. The behavior is undefined + * if `flag` is non-zero and `digit` has no uppercase form. + */ + function digitToBasic(digit, flag) { + // 0..25 map to ASCII a..z or A..Z + // 26..35 map to ASCII 0..9 + return digit + 22 + 75 * (digit < 26) - ((flag != 0) << 5); + } + + /** + * Bias adaptation function as per section 3.4 of RFC 3492. + * http://tools.ietf.org/html/rfc3492#section-3.4 + * @private + */ + function adapt(delta, numPoints, firstTime) { + var k = 0; + delta = firstTime ? floor(delta / damp) : delta >> 1; + delta += floor(delta / numPoints); + for (/* no initialization */; delta > baseMinusTMin * tMax >> 1; k += base) { + delta = floor(delta / baseMinusTMin); + } + return floor(k + (baseMinusTMin + 1) * delta / (delta + skew)); + } + + /** + * Converts a Punycode string of ASCII-only symbols to a string of Unicode + * symbols. + * @memberOf punycode + * @param {String} input The Punycode string of ASCII-only symbols. + * @returns {String} The resulting string of Unicode symbols. + */ + function decode(input) { + // Don't use UCS-2 + var output = [], + inputLength = input.length, + out, + i = 0, + n = initialN, + bias = initialBias, + basic, + j, + index, + oldi, + w, + k, + digit, + t, + /** Cached calculation results */ + baseMinusT; + + // Handle the basic code points: let `basic` be the number of input code + // points before the last delimiter, or `0` if there is none, then copy + // the first basic code points to the output. + + basic = input.lastIndexOf(delimiter); + if (basic < 0) { + basic = 0; + } + + for (j = 0; j < basic; ++j) { + // if it's not a basic code point + if (input.charCodeAt(j) >= 0x80) { + error('not-basic'); + } + output.push(input.charCodeAt(j)); + } + + // Main decoding loop: start just after the last delimiter if any basic code + // points were copied; start at the beginning otherwise. + + for (index = basic > 0 ? basic + 1 : 0; index < inputLength; /* no final expression */) { + + // `index` is the index of the next character to be consumed. + // Decode a generalized variable-length integer into `delta`, + // which gets added to `i`. The overflow checking is easier + // if we increase `i` as we go, then subtract off its starting + // value at the end to obtain `delta`. + for (oldi = i, w = 1, k = base; /* no condition */; k += base) { + + if (index >= inputLength) { + error('invalid-input'); + } + + digit = basicToDigit(input.charCodeAt(index++)); + + if (digit >= base || digit > floor((maxInt - i) / w)) { + error('overflow'); + } + + i += digit * w; + t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias); + + if (digit < t) { + break; + } + + baseMinusT = base - t; + if (w > floor(maxInt / baseMinusT)) { + error('overflow'); + } + + w *= baseMinusT; + + } + + out = output.length + 1; + bias = adapt(i - oldi, out, oldi == 0); + + // `i` was supposed to wrap around from `out` to `0`, + // incrementing `n` each time, so we'll fix that now: + if (floor(i / out) > maxInt - n) { + error('overflow'); + } + + n += floor(i / out); + i %= out; + + // Insert `n` at position `i` of the output + output.splice(i++, 0, n); + + } + + return ucs2encode(output); + } + + /** + * Converts a string of Unicode symbols (e.g. a domain name label) to a + * Punycode string of ASCII-only symbols. + * @memberOf punycode + * @param {String} input The string of Unicode symbols. + * @returns {String} The resulting Punycode string of ASCII-only symbols. + */ + function encode(input) { + var n, + delta, + handledCPCount, + basicLength, + bias, + j, + m, + q, + k, + t, + currentValue, + output = [], + /** `inputLength` will hold the number of code points in `input`. */ + inputLength, + /** Cached calculation results */ + handledCPCountPlusOne, + baseMinusT, + qMinusT; + + // Convert the input in UCS-2 to Unicode + input = ucs2decode(input); + + // Cache the length + inputLength = input.length; + + // Initialize the state + n = initialN; + delta = 0; + bias = initialBias; + + // Handle the basic code points + for (j = 0; j < inputLength; ++j) { + currentValue = input[j]; + if (currentValue < 0x80) { + output.push(stringFromCharCode(currentValue)); + } + } + + handledCPCount = basicLength = output.length; + + // `handledCPCount` is the number of code points that have been handled; + // `basicLength` is the number of basic code points. + + // Finish the basic string - if it is not empty - with a delimiter + if (basicLength) { + output.push(delimiter); + } + + // Main encoding loop: + while (handledCPCount < inputLength) { + + // All non-basic code points < n have been handled already. Find the next + // larger one: + for (m = maxInt, j = 0; j < inputLength; ++j) { + currentValue = input[j]; + if (currentValue >= n && currentValue < m) { + m = currentValue; + } + } + + // Increase `delta` enough to advance the decoder's <n,i> state to <m,0>, + // but guard against overflow + handledCPCountPlusOne = handledCPCount + 1; + if (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) { + error('overflow'); + } + + delta += (m - n) * handledCPCountPlusOne; + n = m; + + for (j = 0; j < inputLength; ++j) { + currentValue = input[j]; + + if (currentValue < n && ++delta > maxInt) { + error('overflow'); + } + + if (currentValue == n) { + // Represent delta as a generalized variable-length integer + for (q = delta, k = base; /* no condition */; k += base) { + t = k <= bias ? tMin : (k >= bias + tMax ? tMax : k - bias); + if (q < t) { + break; + } + qMinusT = q - t; + baseMinusT = base - t; + output.push( + stringFromCharCode(digitToBasic(t + qMinusT % baseMinusT, 0)) + ); + q = floor(qMinusT / baseMinusT); + } + + output.push(stringFromCharCode(digitToBasic(q, 0))); + bias = adapt(delta, handledCPCountPlusOne, handledCPCount == basicLength); + delta = 0; + ++handledCPCount; + } + } + + ++delta; + ++n; + + } + return output.join(''); + } + + /** + * Converts a Punycode string representing a domain name or an email address + * to Unicode. Only the Punycoded parts of the input will be converted, i.e. + * it doesn't matter if you call it on a string that has already been + * converted to Unicode. + * @memberOf punycode + * @param {String} input The Punycoded domain name or email address to + * convert to Unicode. + * @returns {String} The Unicode representation of the given Punycode + * string. + */ + function toUnicode(input) { + return mapDomain(input, function(string) { + return regexPunycode.test(string) + ? decode(string.slice(4).toLowerCase()) + : string; + }); + } + + /** + * Converts a Unicode string representing a domain name or an email address to + * Punycode. Only the non-ASCII parts of the domain name will be converted, + * i.e. it doesn't matter if you call it with a domain that's already in + * ASCII. + * @memberOf punycode + * @param {String} input The domain name or email address to convert, as a + * Unicode string. + * @returns {String} The Punycode representation of the given domain name or + * email address. + */ + function toASCII(input) { + return mapDomain(input, function(string) { + return regexNonASCII.test(string) + ? 'xn--' + encode(string) + : string; + }); + } + + /*--------------------------------------------------------------------------*/ + + /** Define the public API */ + punycode = { + /** + * A string representing the current Punycode.js version number. + * @memberOf punycode + * @type String + */ + 'version': '1.3.2', + /** + * An object of methods to convert from JavaScript's internal character + * representation (UCS-2) to Unicode code points, and back. + * @see <https://mathiasbynens.be/notes/javascript-encoding> + * @memberOf punycode + * @type Object + */ + 'ucs2': { + 'decode': ucs2decode, + 'encode': ucs2encode + }, + 'decode': decode, + 'encode': encode, + 'toASCII': toASCII, + 'toUnicode': toUnicode + }; + + return punycode; +})(); diff --git a/src/lib/regexanalyzer/CHANGES.md b/src/lib/regexanalyzer/CHANGES.md new file mode 100644 index 0000000..3c4eb8b --- /dev/null +++ b/src/lib/regexanalyzer/CHANGES.md @@ -0,0 +1,15 @@ +# Regex Analyzer + +Imported from: <https://github.com/foo123/RegexAnalyzer> +Author: Nikos M. + +## Changes to the imported library + +#### Date + +2023-01-01 + +Imported version 1.2.0 of the library from +https://github.com/foo123/RegexAnalyzer/blob/1.2.0/src/js/Regex.js + +Minimally modified the code to make it ECMAscript `export`-/`import`-friendly. diff --git a/src/lib/regexanalyzer/README.md b/src/lib/regexanalyzer/README.md new file mode 100644 index 0000000..8b9c270 --- /dev/null +++ b/src/lib/regexanalyzer/README.md @@ -0,0 +1,14 @@ +https://github.com/foo123/RegexAnalyzer/issues/1#issuecomment-750039255 + +> The (implied) license is as free as it can get. You can modify it and use +> it anywhere you want if it suits you. +> +> An attribution to original author would be appreciated but even this is not +> mandatory. +> +> Copy Left + +References: + +- https://en.wikipedia.org/wiki/Copyleft +- http://gplv3.fsf.org/wiki/index.php/Compatible_licenses diff --git a/src/lib/regexanalyzer/regex.js b/src/lib/regexanalyzer/regex.js new file mode 100644 index 0000000..35a2716 --- /dev/null +++ b/src/lib/regexanalyzer/regex.js @@ -0,0 +1,2276 @@ +/** +* +* Regex +* @version: 1.2.0 +* +* A simple & generic Regular Expression Analyzer & Composer for PHP, Python, Javascript +* https://github.com/foo123/RegexAnalyzer +* +**/ +export default (function(root, name, factory) { +"use strict"; +var __version__ = "1.2.0", + + PROTO = 'prototype', OP = Object[PROTO], AP = Array[PROTO], + Keys = Object.keys, to_string = OP.toString, HAS = OP.hasOwnProperty, + fromCharCode = String.fromCharCode, + fromCodePoint = String.fromCodePoint || String.fromCharCode, + CHAR = 'charAt', CHARCODE = 'charCodeAt', + CODEPOINT = String.prototype.codePointAt ? 'codePointAt' : CHARCODE, + toJSON = JSON.stringify, + INF = Infinity, ESC = '\\', + specialChars = { + "." : "MatchAnyChar", + "|" : "MatchEither", + "?" : "MatchZeroOrOne", + "*" : "MatchZeroOrMore", + "+" : "MatchOneOrMore", + "^" : "MatchStart", + "$" : "MatchEnd", + "{" : "StartRepeats", + "}" : "EndRepeats", + "(" : "StartGroup", + ")" : "EndGroup", + "[" : "StartCharGroup", + "]" : "EndCharGroup" + }, + /* + http://www.javascriptkit.com/javatutors/redev2.shtml + + \f matches form-feed. + \r matches carriage return. + \n matches linefeed. + \t matches horizontal tab. + \v matches vertical tab. + \0 matches NUL character. + [\b] matches backspace. + \s matches whitespace (short for [\f\n\r\t\v\u00A0\u2028\u2029]). + \S matches anything but a whitespace (short for [^\f\n\r\t\v\u00A0\u2028\u2029]). + \w matches any alphanumerical character (word characters) including underscore (short for [a-zA-Z0-9_]). + \W matches any non-word characters (short for [^a-zA-Z0-9_]). + \d matches any digit (short for [0-9]). + \D matches any non-digit (short for [^0-9]). + \b matches a word boundary (the position between a word and a space). + \B matches a non-word boundary (short for [^\b]). + \cX matches a control character. E.g: \cm matches control-M. + \xhh matches the character with two characters of hexadecimal code hh. + \uhhhh matches the Unicode character with four characters of hexadecimal code hhhh. + */ + specialCharsEscaped = { + "\\" : "ESC", + "/" : "/", + "0" : "NULChar", + "f" : "FormFeed", + "n" : "LineFeed", + "r" : "CarriageReturn", + "t" : "HorizontalTab", + "v" : "VerticalTab", + "b" : "MatchWordBoundary", + "B" : "MatchNonWordBoundary", + "s" : "MatchSpaceChar", + "S" : "MatchNonSpaceChar", + "w" : "MatchWordChar", + "W" : "MatchNonWordChar", + "d" : "MatchDigitChar", + "D" : "MatchNonDigitChar" + }, + T_SEQUENCE = 1, + T_ALTERNATION = 2, + T_GROUP = 4, + T_CHARGROUP = 8, + T_QUANTIFIER = 16, + T_UNICODECHAR = 32, + T_HEXCHAR = 64, + T_SPECIAL = 128, + T_CHARS = 256, + T_CHARRANGE = 512, + T_STRING = 1024, + T_COMMENT = 2048 +; + +function is_array(x) +{ + return (x instanceof Array) || ('[object Array]' === to_string.call(x)); +} +function is_string(x) +{ + return (x instanceof String) || ('[object String]' === to_string.call(x)); +} +function is_regexp(x) +{ + return (x instanceof RegExp) || ('[object RegExp]' === to_string.call(x)); +} +function array(x) +{ + return is_array(x) ? x : [x]; +} +function clone(obj, cloned) +{ + cloned = cloned || {}; + for (var p in obj) if (HAS.call(obj,p)) cloned[p] = obj[p]; + return cloned; +} +function RE_OBJ(re, flags, flavor) +{ + var self = this; + self.re = re; + self.flags = flags; + self.flavor = flavor; + self.len = re.length; + self.pos = 0; + self.index = 0; + self.groupIndex = 0; + self.group = {}; + self.inGroup = 0; +} +RE_OBJ[PROTO] = { + constructor: RE_OBJ + ,re: null + ,flags: null + ,flavor: '' + ,len: null + ,pos: null + ,index: null + ,groupIndex: null + ,inGroup: null + ,groups: null + ,dispose: function() { + var self = this; + self.re = null; + self.flags = null; + self.flavor = null; + self.len = null; + self.pos = null; + self.index = null; + self.groupIndex = null; + self.group = null; + self.inGroup = null; + } +}; +function Node(type, value, flags) +{ + var self = this; + if (!(self instanceof Node)) return new Node(type, value, flags); + self.type = type; + self.val = value; + self.flags = flags || {}; + switch (type) + { + case T_SEQUENCE: + self.typeName = "Sequence"; break; + case T_ALTERNATION: + self.typeName = "Alternation"; break; + case T_GROUP: + self.typeName = "Group"; break; + case T_CHARGROUP: + self.typeName = "CharacterGroup"; break; + case T_CHARS: + self.typeName = "Characters"; break; + case T_CHARRANGE: + self.typeName = "CharacterRange"; break; + case T_STRING: + self.typeName = "String"; break; + case T_QUANTIFIER: + self.typeName = "Quantifier"; break; + case T_UNICODECHAR: + self.typeName = "UnicodeChar"; break; + case T_HEXCHAR: + self.typeName = "HexChar"; break; + case T_SPECIAL: + self.typeName = "Special"; break; + case T_COMMENT: + self.typeName = "Comment"; break; + default: + self.typeName = "unspecified"; break; + } +}; +Node.toObjectStatic = function toObject(v) { + if (v instanceof Node) + { + return v.flags && Object.keys(v.flags).length ? { + type: v.typeName, + value: toObject(v.val), + flags: v.flags + } : { + type: v.typeName, + value: toObject(v.val) + }; + } + else if (is_array(v)) + { + return v.map(toObject); + } + return v; +}; +Node[PROTO] = { + constructor: Node + ,type: null + ,typeName: null + ,val: null + ,flags: null + ,dispose: function() { + var self = this; + self.val = null; + self.flags = null; + self.type = null; + self.typeName = null; + return self; + } + ,toObject: function() { + return Node.toObjectStatic(this); + } +}; + +var rnd = function(a, b) {return Math.round((b-a)*Math.random()+a);}, + RE = function(re, fl) {return new RegExp(re, fl||'');}, + slice = function(a) {return AP.slice.apply(a, AP.slice.call(arguments, 1));}, + flatten = function(a) { + var r = [], i = 0; + while (i < a.length) r = r.concat(a[i++]); + return r; + }, + getArgs = function(args, asArray) { + /*var a = slice(args); + if ( asArray && a[0] && + ( a[0] instanceof Array || '[object Array]' == to_string.call(a[0]) ) + ) + a = a[0];*/ + return flatten(slice(args)); //a; + }, + esc_re = function(s, esc, chargroup) { + var es = '', l = s.length, i=0, c; + //escaped_re = /([.*+?^${}()|[\]\/\\\-])/g + if (chargroup) + { + while (i < l) + { + c = s[CHAR](i++); + es += (/*('?' === c) || ('*' === c) || ('+' === c) ||*/ + ('-' === c) || /*('.' === c) ||*/ ('^' === c) || ('$' === c) || ('|' === c) || + ('{' === c) || ('}' === c) || ('(' === c) || (')' === c) || + ('[' === c) || (']' === c) || ('/' === c) || (esc === c) ? esc : '') + c; + } + } + else + { + while (i < l) + { + c = s[CHAR](i++); + es += (('?' === c) || ('*' === c) || ('+' === c) || + /*('-' === c) ||*/ ('.' === c) || ('^' === c) || ('$' === c) || ('|' === c) || + ('{' === c) || ('}' === c) || ('(' === c) || (')' === c) || + ('[' === c) || (']' === c) || ('/' === c) || (esc === c) ? esc : '') + c; + } + } + return es; + }, + pad = function(s, n, z) { + var ps = String(s); + z = z || '0'; + while (ps.length < n) ps = z + ps; + return ps; + }, + char_code = function(c) {return c[CODEPOINT](0);}, + char_code_range = function(s) {return [s[CODEPOINT](0), s[CODEPOINT](s.length-1)];}, + //char_codes = function( s_or_a ) { return (s_or_a.substr ? s_or_a.split("") : s_or_a).map( char_code ); }, + // http://stackoverflow.com/questions/12376870/create-an-array-of-characters-from-specified-range + character_range = function(first, last) { + if (first && is_array(first)) {last = first[1]; first = first[0];} + var ch, chars, start = first[CODEPOINT](0), end = last[CODEPOINT](0); + + if (end === start) return [fromCodePoint(start)]; + + chars = []; + for (ch = start; ch <= end; ++ch) chars.push(fromCodePoint(ch)); + return chars; + }, + concat = function(p1, p2) { + if (p2) + { + var p, l; + if (is_array(p2)) + { + for (p=0,l=p2.length; p<l; ++p) p1[p2[p]] = 1; + } + else + { + for (p in p2) if (HAS.call(p2, p)) p1[p] = 1; + } + } + return p1; + }, + + BSPACES = "\r\n", SPACES = " \t\v", PUNCTS = "~!@#$%^&*()-+=[]{}\\|;:,./<>?", + DIGITS = "0123456789", DIGITS_RANGE = char_code_range(DIGITS), + HEXDIGITS_RANGES = [DIGITS_RANGE, [char_code("a"), char_code("f")], [char_code("A"), char_code("F")]], + ALPHAS = "_"+(character_range("a", "z").join(""))+(character_range("A", "Z").join("")), + ALL = SPACES+PUNCTS+DIGITS+ALPHAS, ALL_ARY = ALL.split(""), + + match_chars = function(CHARS, s, pos, minlen, maxlen) { + pos = pos || 0; + minlen = minlen || 1; + maxlen = maxlen || INF; + var lp = pos, l = 0, sl = s.length, ch; + while ((lp < sl) && (l <= maxlen) && -1 < CHARS.indexOf(ch=s[CHAR](lp))) + { + ++lp; ++l; + } + return l >= minlen ? l : false; + }, + match_char_range = function(RANGE, s, pos, minlen, maxlen) { + pos = pos || 0; + minlen = minlen || 1; + maxlen = maxlen || INF; + var lp = pos, l = 0, sl = s.length, ch; + while ((lp < sl) && (l <= maxlen) && ((ch=s[CHARCODE](lp)) >= RANGE[0] && ch <= RANGE[1])) + { + ++lp; ++l; + } + return l >= minlen ? l : false; + }, + match_char_ranges = function(RANGES, s, pos, minlen, maxlen) { + pos = pos || 0; + minlen = minlen || 1; + maxlen = maxlen || INF; + var lp = pos, l = 0, sl = s.length, ch, + i, Rl = RANGES.length, RANGE, found = true; + while ((lp < sl) && (l <= maxlen) && found) + { + ch = s[CHARCODE](lp); found = false; + for (i=0; i<Rl; ++i) + { + RANGE = RANGES[i]; + if (ch >= RANGE[0] && ch <= RANGE[1]) + { + ++lp; ++l; found = true; + break; + } + } + } + return l >= minlen ? l : false; + }, + + punct = function() { + return PUNCTS[CHAR](rnd(0, PUNCTS.length-1)); + }, + space = function(positive) { + return false !== positive + ? SPACES[CHAR](rnd(0, SPACES.length-1)) + : (punct()+digit()+alpha())[CHAR](rnd(0, 2)) + ; + }, + digit = function(positive) { + return false !== positive + ? DIGITS[CHAR](rnd(0, DIGITS.length-1)) + : (punct()+space()+alpha())[CHAR](rnd(0, 2)) + ; + }, + alpha = function(positive) { + return false !== positive + ? ALPHAS[CHAR](rnd(0, ALPHAS.length-1)) + : (punct()+space()+digit())[CHAR](rnd(0, 2)) + ; + }, + word = function(positive) { + return false !== positive + ? (ALPHAS+DIGITS)[CHAR](rnd(0, ALPHAS.length+DIGITS.length-1)) + : (punct()+space())[CHAR](rnd(0, 1)) + ; + }, + any = function() { + return ALL[CHAR](rnd(0, ALL.length-1)); + }, + character = function(chars, positive) { + if (false !== positive) return chars.length ? chars[rnd(0, chars.length-1)] : ''; + var choices = ALL_ARY.filter(function(c) {return 0 > chars.indexOf(c);}); + return choices.length ? choices[rnd(0, choices.length-1)] : ''; + }, + random_upper_or_lower = function(c) {return 0.5 < Math.random() ? c.toLowerCase() : c.toUpperCase();}, + case_insensitive = function(chars, asArray) { + if (asArray) + { + if (chars[CHAR]) chars = chars.split(''); + chars = chars.map(random_upper_or_lower); + //if ( !asArray ) chars = chars.join(''); + return chars; + } + else + { + return random_upper_or_lower(chars); + } + }, + + walk = function walk(ret, node, state) { + if ((null == node) || !state) return ret; + + var i, l, r, type = node instanceof Node ? node.type : null; + + // walk the tree + if (null === type) + { + // custom, let reduce handle it + ret = state.reduce(ret, node, state); + } + + else if (state.IGNORE & type) + { + /* nothing */ + } + + else if (state.MAP & type) + { + r = state.map(ret, node, state); + if (null != state.ret) + { + ret = state.reduce(ret, node, state); + state.ret = null; + } + else if (null != r) + { + r = array(r); + for (i=0,l=r?r.length:0; i<l; ++i) + { + state.node = node; + ret = walk(ret, r[i], state); + if (state.stop) + { + state.stop = null; + return ret; + } + } + } + } + + else if (state.REDUCE & type) + { + ret = state.reduce(ret, node, state); + } + + state.node = null; + return ret; + }, + /*map_all = function map_all( ret, node, state ) { + return node.val; + },*/ + map_src = function map_src(ret, node, state) { + var type = node.type; + if (T_ALTERNATION === type) + { + var r = []; + for (var i=0,l=node.val.length-1; i<l; ++i) r.push(node.val[i], '|'); + r.push(node.val[l]); + return r; + } + else if (T_CHARGROUP === type) + { + return [].concat('['+(node.flags.NegativeMatch?'^':'')).concat(array(node.val)).concat(']'); + } + else if (T_QUANTIFIER === type) + { + var q = ''; + if (node.flags.MatchZeroOrOne) q = '?'; + else if (node.flags.MatchZeroOrMore) q = '*'; + else if (node.flags.MatchOneOrMore) q = '+'; + else q = node.flags.min === node.flags.max ? ('{'+node.flags.min+'}') : ('{'+node.flags.min+','+(-1===node.flags.max?'':node.flags.max)+'}'); + if ((node.flags.min !== node.flags.max) && !node.flags.isGreedy) q += '?'; + return [].concat(array(node.val)).concat(q); + } + else if (T_GROUP === type) + { + var g = null; + if (node.flags.NotCaptured) + { + g = [].concat('(?:').concat(array(node.val)).concat(')'); + } + else if (node.flags.LookAhead) + { + g = [].concat('(?=').concat(array(node.val)).concat(')'); + } + else if (node.flags.NegativeLookAhead) + { + g = [].concat('(?!').concat(array(node.val)).concat(')'); + } + else if (node.flags.LookBehind) + { + g = [].concat('(?<=').concat(array(node.val)).concat(')'); + } + else if (node.flags.NegativeLookBehind) + { + g = [].concat('(?<!').concat(array(node.val)).concat(')'); + } + else if (node.flags.NamedGroup && !state.compatibility) + { + g = [].concat('(?<'+node.flags.GroupName+'>').concat(array(node.val)).concat(')'); + } + else + { + g = [].concat('(').concat(array(node.val)).concat(')'); + } + if (null != node.flags.GroupIndex) + { + ret.group[node.flags.GroupIndex] = node.flags.GroupIndex; + if (node.flags.GroupName) ret.group[node.flags.GroupName] = node.flags.GroupIndex; + } + return g; + } + return node.val; + }, + map_any = function map_any(ret, node, state) { + var type = node.type; + if ((T_ALTERNATION === type) || (T_CHARGROUP === type)) + { + return node.val.length ? node.val[rnd(0, node.val.length-1)] : null; + } + else if (T_QUANTIFIER === type) + { + var numrepeats, mmin, mmax, repeats; + if (ret.length >= state.maxLength) + { + numrepeats = node.flags.min; + } + else + { + mmin = node.flags.min; + mmax = -1 === node.flags.max ? (mmin+1+2*state.maxLength) : node.flags.max; + numrepeats = rnd(mmin, mmax); + } + if (numrepeats) + { + repeats = new Array(numrepeats); + for (var i=0; i<numrepeats; ++i) repeats[i] = node.val; + return repeats; + } + else + { + return null; + } + } + else if ((T_GROUP === type) && node.flags.GroupIndex) + { + var sample = walk('', node.val, state); + state.group[node.flags.GroupIndex] = sample; + state.ret = sample; + return null; + } + else + { + return node.val; + } + }, + map_min = function map_min(ret, node, state) { + var type = node.type; + if (T_ALTERNATION === type) + { + var i, l = node.val.length, cur, + min = l ? walk(0, node.val[0], state) : 0; + for (i=1; i<l; ++i) + { + cur = walk(0, node.val[i], state); + if (cur < min) min = cur; + } + if (l) state.ret = min; + return null; + } + else if (T_CHARGROUP === type) + { + return node.val.length ? node.val[0] : null; + } + else if (T_QUANTIFIER === type) + { + if (0 === node.flags.min) return null; + var i, nrepeats = node.flags.min, repeats = new Array(nrepeats); + for (i=0; i<nrepeats; ++i) repeats[i] = node.val; + return repeats; + } + else if ((T_GROUP === type) && node.flags.GroupIndex) + { + var min = walk(0, node.val, state); + state.group[node.flags.GroupIndex] = min; + state.ret = min; + return null; + } + else + { + return node.val; + } + }, + map_max = function map_max(ret, node, state) { + var type = node.type; + if (T_ALTERNATION === type) + { + var i, l = node.val.length, cur, max = l ? walk(0, node.val[0], state) : 0; + if (-1 !== max) + { + for (i=1; i<l; ++i) + { + cur = walk(0, node.val[i], state); + if (-1 === cur) + { + max = -1; + break; + } + else if (cur > max) + { + max = cur; + } + } + } + if (l) state.ret = max; + return null; + } + else if (T_CHARGROUP === type) + { + return node.val.length ? node.val[0] : null; + } + else if (T_QUANTIFIER === type) + { + max = walk(0, node.val, state); + if (-1 === max) + { + state.ret = -1; + } + else if (0 < max) + { + if (-1 === node.flags.max) + { + state.ret = -1; + } + else if (0 < node.flags.max) + { + state.ret = node.flags.max*max; + } + else + { + state.ret = max; + } + } + return null; + } + else if ((T_GROUP === type) && node.flags.GroupIndex) + { + var max = walk(0, node.val, state); + state.group[node.flags.GroupIndex] = max; + state.ret = max; + return null; + } + else + { + return node.val; + } + }, + map_1st = function map_1st(ret, node, state) { + var type = node.type; + if (T_SEQUENCE === type) + { + var seq=[], i=0, l=node.val.length, n; + for (i=0; i<l; ++i) + { + n = node.val[i]; + seq.push( n ); + if ((T_QUANTIFIER === n.type) && (0 === n.flags.min)) + continue; + else if ((T_SPECIAL === n.type) && (n.flags.MatchStart || n.flags.MatchEnd)) + continue; + break; + } + return seq.length ? seq : null; + } + else + { + return node.val; + } + }, + reduce_len = function reduce_len(ret, node, state) { + if (null != state.ret) + { + if (-1 === state.ret) ret = -1; + else ret += state.ret; + return ret; + } + if (-1 === ret) return ret; + + if (node === +node) + { + ret += node; + return ret; + } + + if ((T_SPECIAL === node.type) && node.flags.MatchEnd) + { + state.stop = 1; + return ret; + } + var type = node.type; + + if ( + (T_CHARS === type) || (T_CHARRANGE === type) || + (T_UNICODECHAR === type) || (T_HEXCHAR === type) || + ((T_SPECIAL === type) && !node.flags.MatchStart && !node.flags.MatchEnd) + ) + { + ret += node.flags.BackReference ? state.group[node.flags.GroupIndex]||0 : 1; + } + else if (T_STRING === type) + { + ret += node.val.length; + } + + return ret; + }, + reduce_str = function reduce_str(ret, node, state) { + if (null != state.ret) + { + ret += state.ret; + return ret; + } + + if (is_string(node)) + { + ret += node; + return ret; + } + + if ((T_SPECIAL === node.type) && node.flags.MatchEnd) + { + state.stop = 1; + return ret; + } + var type = node.type, sample = null; + + if (T_CHARS === type) + { + sample = node.val; + } + else if (T_CHARRANGE === type) + { + var range = [node.val[0], node.val[1]]; + if (T_UNICODECHAR === range[0].type || T_HEXCHAR === range[0].type) range[0] = range[0].flags.Char; + if (T_UNICODECHAR === range[1].type || T_HEXCHAR === range[1].type) range[1] = range[1].flags.Char; + sample = character_range(range); + } + else if ((T_UNICODECHAR === type) || (T_HEXCHAR === type)) + { + sample = [node.flags.Char]; + } + else if ((T_SPECIAL === type) && !node.flags.MatchStart && !node.flags.MatchEnd) + { + var part = node.val; + if (node.flags.BackReference) + { + part = node.flags.GroupIndex; + ret += HAS.call(state.group, part) ? state.group[part] : ''; + return ret; + } + else if ('D' === part) + { + sample = [digit(false)]; + } + else if ('W' === part) + { + sample = [word(false)]; + } + else if ('S' === part) + { + sample = [space(false)]; + } + else if ('d' === part) + { + sample = [digit()]; + } + else if ('w' === part) + { + sample = [word()]; + } + else if ('s' === part) + { + sample = [space()]; + } + else if (('.' === part) && node.flags.MatchAnyChar) + { + sample = [any()]; + } + else + { + sample = [ESC + part]; + } + } + else if (T_STRING === type) + { + sample = node.val; + } + + if (sample) + { + ret += T_STRING === type ? + (state.isCaseInsensitive ? case_insensitive(sample) : sample) : + (character(state.isCaseInsensitive ? case_insensitive(sample, true) : sample, !state.node || !state.node.flags.NegativeMatch)) + ; + } + + return ret; + }, + reduce_src = function reduce_src(ret, node, state) { + if (null != state.ret) + { + if (state.ret.src) ret.src += state.ret.src; + if (state.ret.group) ret.group = clone(state.ret.group, ret.group); + return ret; + } + + if (is_string(node)) + { + ret.src += node; + return ret; + } + + var type = node.type; + if (T_CHARS === type) + { + ret.src += state.escaped ? esc_re(node.val.join(''), ESC, 1) : node.val.join(''); + } + else if (T_CHARRANGE === type) + { + var range = [node.val[0], node.val[1]]; + if (state.escaped) + { + if (T_UNICODECHAR === range[0].type) range[0] = range[0].flags.UnicodePoint ? ESC+'u{'+range[0].flags.Code+'}' : ESC+'u'+pad(range[0].flags.Code,4); + else if (T_HEXCHAR === range[0].type) range[0] = ESC+'x'+pad(range[0].flags.Code,2); + else range[0] = esc_re(range[0], ESC, 1); + if (T_UNICODECHAR === range[1].type) range[1] = range[1].flags.UnicodePoint ? ESC+'u{'+range[1].flags.Code+'}' : ESC+'u'+pad(range[1].flags.Code,4); + else if (T_HEXCHAR === range[1].type) range[1] = ESC+'x'+pad(range[1].flags.Code,2); + else range[1] = esc_re(range[1], ESC, 1); + } + else + { + if (T_UNICODECHAR === range[0].type || T_HEXCHAR === range[0].type) range[0] = range[0].flags.Char; + if (T_UNICODECHAR === range[1].type || T_HEXCHAR === range[1].type) range[1] = range[1].flags.Char; + } + ret.src += range[0]+'-'+range[1]; + } + else if (T_UNICODECHAR === type) + { + ret.src += node.flags.UnicodePoint ? ESC+'u{'+node.flags.Code+'}' : (state.escaped ? ESC+'u'+pad(node.flags.Code,4) : node.flags.Char); + } + else if (T_HEXCHAR === type) + { + ret.src += state.escaped ? ESC+'x'+pad(node.flags.Code,2) : node.flags.Char; + } + else if (T_SPECIAL === type) + { + if (node.flags.BackReference) + { + if (state.compatibility || (node.flags.GroupIndex === node.flags.GroupName)) + { + ret.src += ESC+node.flags.GroupIndex; + } + else + { + ret.src += ESC+'k<'+node.flags.GroupName+'>'; + } + } + else + { + ret.src += node.flags.MatchAnyChar || node.flags.MatchStart || node.flags.MatchEnd ? (''+node.val) : (ESC+node.val); + } + } + else if (T_STRING === type) + { + ret.src += state.escaped ? esc_re(node.val, ESC) : node.val; + } + + return ret; + }, + reduce_peek = function reduce_peek(ret, node, state) { + if (null != state.ret) + { + ret.positive = concat(ret.positive, state.ret.positive); + ret.negative = concat(ret.negative, state.ret.negative); + return ret; + } + if ((T_SPECIAL === node.type) && node.flags.MatchEnd) + { + state.stop = 1; + return ret; + } + + var type = node.type, inCharGroup = state.node && (T_CHARGROUP === state.node.type), + inNegativeCharGroup = inCharGroup && state.node.flags.NegativeMatch, + peek = inNegativeCharGroup ? "negative" : "positive"; + + if (T_CHARS === type) + { + ret[peek] = concat(ret[peek], node.val); + } + else if (T_CHARRANGE === type) + { + var range = [node.val[0],node.val[1]]; + if (T_UNICODECHAR === range[0].type || T_HEXCHAR === range[0].type) range[0] = range[0].flags.Char; + if (T_UNICODECHAR === range[1].type || T_HEXCHAR === range[1].type) range[1] = range[1].flags.Char; + ret[peek] = concat(ret[peek], character_range(range)); + } + else if ((T_UNICODECHAR === type) || (T_HEXCHAR === type)) + { + ret[peek][node.flags.Char] = 1; + } + else if ((T_SPECIAL === type) && !node.flags.BackReference && !node.flags.MatchStart && !node.flags.MatchEnd) + { + var part = node.val; + if ('D' === part) + { + ret[inNegativeCharGroup?"positive":"negative"][ '\\d' ] = 1; + } + else if ('W' === part) + { + ret[inNegativeCharGroup?"positive":"negative"][ '\\w' ] = 1; + } + else if ('S' === part) + { + ret[inNegativeCharGroup?"positive":"negative"][ '\\s' ] = 1; + } + else if ('B' === part) + { + ret[inNegativeCharGroup?"positive":"negative"][ '\\b' ] = 1; + } + else + { + ret[peek][ESC + part] = 1; + } + } + else if (T_STRING === type) + { + ret["positive"][node.val[CHAR](0)] = 1; + } + + return ret; + }, + + match_hex = function(s) { + var m = false; + if ((s.length > 2) && ('x' === s[CHAR](0))) + { + if (match_char_ranges(HEXDIGITS_RANGES, s, 1, 2, 2)) return [m=s.slice(0,3), m.slice(1)]; + } + return false; + }, + match_unicode = function(s, flags) { + var m = false, l; + if ((s.length > 3) && ('u' === s[CHAR](0))) + { + if (flags.u && '{' === s[CHAR](1) && (l=match_char_ranges(HEXDIGITS_RANGES, s, 2, 1, 6)) && '}' === s[CHAR](l+2)) + { + return [m=s.slice(0,l+3), m.slice(2, -1), 1]; + } + else if (l=match_char_ranges(HEXDIGITS_RANGES, s, 1, 4, 4)) + { + return [m=s.slice(0,l+1), m.slice(1), 0]; + } + } + return false; + }, + match_repeats = function(s) { + var l, sl = s.length, pos = 0, m = false, hasComma = false; + if ((sl > 2) && ('{' === s[CHAR](pos))) + { + m = ['', '', null]; + ++pos; + if (l=match_chars(SPACES, s, pos)) pos += l; + if (l=match_char_range(DIGITS_RANGE, s, pos)) + { + m[1] = s.slice(pos, pos+l); + pos += l; + } + else + { + return false; + } + if (l=match_chars(SPACES, s, pos)) pos += l; + if ((pos < sl) && (',' === s[CHAR](pos))) {pos += 1; hasComma = true;} + if (l=match_chars(SPACES, s, pos)) pos += l; + if (l=match_char_range(DIGITS_RANGE, s, pos)) + { + m[2] = s.slice(pos, pos+l); + pos += l; + } + if (l=match_chars(SPACES, s, pos)) pos += l; + if ((pos < sl) && ('}' === s[CHAR](pos))) + { + pos++; + m[0] = s.slice(0, pos); + if (!hasComma) m[2] = m[1]; + return m; + } + else + { + return false; + } + } + return false; + }, + chargroup = function chargroup(re_obj) { + var sequence = [], chars = [], allchars = [], flags = {}, flag, ch, lre, + prevch = null, range, isRange = false, m, isUnicode, isHex, isSpecial, escaped = false; + + if ('^' === re_obj.re[CHAR](re_obj.pos)) + { + flags["NegativeMatch"] = 1; + ++re_obj.pos; + } + + lre = re_obj.len; + while (re_obj.pos < lre) + { + isUnicode = false; + isHex = false; + isSpecial = false; + m = null; + prevch = ch; + ch = re_obj.re[CHAR](re_obj.pos++); + + escaped = ESC === ch; + if (escaped) ch = re_obj.re[CHAR](re_obj.pos++); + + if (escaped) + { + // unicode character + if ('u' === ch) + { + m = match_unicode(re_obj.re.substr(re_obj.pos-1), re_obj.flags); + if (m) + { + re_obj.pos += m[0].length-1; + ch = Node(T_UNICODECHAR, m[0], {"Char": m[2] ? fromCodePoint(parseInt(m[1], 16)) : fromCharCode(parseInt(m[1], 16)), "Code": m[1], "UnicodePoint": !!m[2]}); + isUnicode = true; isHex = false; + } + } + + // hex character + else if ('x' === ch) + { + m = match_hex(re_obj.re.substr(re_obj.pos-1)); + if (m) + { + re_obj.pos += m[0].length-1; + ch = Node(T_HEXCHAR, m[0], {"Char": fromCharCode(parseInt(m[1], 16)), "Code": m[1]}); + isUnicode = true; isHex = true; + } + } + + // special character + else if (HAS.call(specialCharsEscaped, ch) && ('/' !== ch)) + { + isSpecial = true; + flag = {}; + flag[specialCharsEscaped[ch]] = 1; + ch = Node(T_SPECIAL, ch, flag); + } + } + + if (isRange) + { + if ( + (ch instanceof Node) && + (ch.type === T_SPECIAL) && + (-1 !== ['s','S','d','D','w','W'].indexOf(ch.val)) + ) + { + if (range[0] instanceof Node) + { + sequence.push(range[0]); + } + else + { + chars.push(range[0]); + } + chars.push('-'); + sequence.push(ch); + } + else + { + if (chars.length) + { + allchars = allchars.concat(chars); + chars = []; + } + range[1] = ch; + sequence.push(Node(T_CHARRANGE, range)); + } + isRange = false; + } + else + { + if (escaped) + { + if (isUnicode) + { + if (chars.length) + { + allchars = allchars.concat(chars); + chars = []; + } + sequence.push(ch); + } + + else if (isSpecial) + { + if (chars.length) + { + allchars = allchars.concat(chars); + chars = []; + } + sequence.push(ch); + } + + else + { + chars.push(ch); + } + } + + else + { + // end of char group + if (']' === ch) + { + if (chars.length) + { + allchars = allchars.concat(chars); + chars = []; + } + // map all chars into one node + if (allchars.length) sequence.push(Node(T_CHARS, allchars)); + return Node(T_CHARGROUP, sequence, flags); + } + + else if ('-' === ch) + { + if ( + null == prevch || + ']' === re_obj.re[CHAR](re_obj.pos) || + ( + (prevch instanceof Node) && + (prevch.type === T_SPECIAL) && + (-1 !== ['s','S','d','D','w','W'].indexOf(prevch.val)) + ) + ) + { + // take it as literal + // https://github.com/foo123/RegexAnalyzer/issues/5 + chars.push(ch); + } + else + { + range = [prevch, '']; + if (prevch instanceof Node) sequence.pop(); else chars.pop(); + isRange = true; + } + } + + else + { + chars.push(ch); + } + } + } + } + if (chars.length) + { + allchars = allchars.concat(chars); + chars = []; + } + // map all chars into one node + if (allchars.length) sequence.push(Node(T_CHARS, allchars)); + return Node(T_CHARGROUP, sequence, flags); + }, + + analyze_re = function analyze_re(re_obj) { + var lre, ch, m, word = '', wordlen = 0, + alternation = [], sequence = [], flags = {}, + flag, escaped = false, pre, pre3, captured; + + if (re_obj.inGroup > 0) + { + pre = re_obj.re.substr(re_obj.pos, 2); + pre3 = re_obj.re.substr(re_obj.pos, 3); + captured = 1; + + if ("?P=" === pre3) + { + flags["BackReference"] = 1; + flags["GroupName"] = ''; + re_obj.pos += 3; + lre = re_obj.len; + while (re_obj.pos < lre) + { + ch = re_obj.re[CHAR](re_obj.pos++); + if (")" === ch) break; + flags["GroupName"] += ch; + } + flags["GroupIndex"] = HAS.call(re_obj.group, flags["GroupName"]) ? re_obj.group[flags["GroupName"]] : null; + return Node(T_SPECIAL, flags["GroupName"], flags); + } + + else if ("?#" === pre) + { + flags["Comment"] = 1; + re_obj.pos += 2; + word = ''; + lre = re_obj.len; + while (re_obj.pos < lre) + { + ch = re_obj.re[CHAR](re_obj.pos++); + if (")" === ch) break; + word += ch; + } + return Node(T_COMMENT, word); + } + + else if ("?:" === pre) + { + flags["NotCaptured"] = 1; + re_obj.pos += 2; + captured = 0; + } + + else if ("?=" === pre) + { + flags["LookAhead"] = 1; + re_obj.pos += 2; + captured = 0; + } + + else if ("?!" === pre) + { + flags["NegativeLookAhead"] = 1; + re_obj.pos += 2; + captured = 0; + } + + else if ("?<=" === pre3) + { + flags["LookBehind"] = 1; + re_obj.pos += 3; + captured = 0; + } + + else if ("?<!" === pre3) + { + flags["NegativeLookBehind"] = 1; + re_obj.pos += 3; + captured = 0; + } + + else if (("?<" === pre) || ("?P<" === pre3)) + { + // https://github.com/foo123/RegexAnalyzer/issues/6 + flags["NamedGroup"] = 1; + flags["GroupName"] = ''; + re_obj.pos += "?<" === pre ? 2 : 3; + lre = re_obj.len; + while (re_obj.pos < lre) + { + ch = re_obj.re[CHAR](re_obj.pos++); + if (">" === ch) break; + flags["GroupName"] += ch; + } + } + + ++re_obj.index; + if (captured) + { + ++re_obj.groupIndex; + flags["GroupIndex"] = re_obj.groupIndex; + re_obj.group[flags["GroupIndex"]] = flags["GroupIndex"]; + if (flags["GroupName"]) re_obj.group[flags["GroupName"]] = flags["GroupIndex"]; + } + } + + lre = re_obj.len; + while (re_obj.pos < lre) + { + ch = re_obj.re[CHAR](re_obj.pos++); + + // \\abc + escaped = ESC === ch; + if (escaped) ch = re_obj.re[CHAR](re_obj.pos++); + + if (escaped) + { + // unicode character + if ('u' === ch) + { + m = match_unicode(re_obj.re.substr(re_obj.pos-1), re_obj.flags); + if (m) + { + if (wordlen) + { + sequence.push(Node(T_STRING, word)); + word = ''; + wordlen = 0; + } + re_obj.pos += m[0].length-1; + sequence.push(Node(T_UNICODECHAR, m[0], {"Char": m[2] ? fromCodePoint(parseInt(m[1], 16)) : fromCharCode(parseInt(m[1], 16)), "Code": m[1], "UnicodePoint": !!m[2]})); + } + else + { + word += ch; + wordlen += 1; + } + } + + // hex character + else if ('x' === ch) + { + m = match_hex(re_obj.re.substr(re_obj.pos-1)); + if (m) + { + if (wordlen) + { + sequence.push(Node(T_STRING, word)); + word = ''; + wordlen = 0; + } + re_obj.pos += m[0].length-1; + sequence.push(Node(T_HEXCHAR, m[0], {"Char": fromCharCode(parseInt(m[1], 16)), "Code": m[1]})); + } + else + { + word += ch; + wordlen += 1; + } + } + + // js back-reference + else if ('k' === ch && '<' === re_obj.re[CHAR](re_obj.pos)) + { + // https://github.com/foo123/RegexAnalyzer/issues/6 + if (wordlen) + { + sequence.push(Node(T_STRING, word)); + word = ''; + wordlen = 0; + } + re_obj.pos++; + word = ''; + while (re_obj.pos < lre) + { + ch = re_obj.re[CHAR](re_obj.pos); + if ('>' === ch) {re_obj.pos++; break;} + else {word += ch; re_obj.pos++;} + } + flag = {}; + flag["BackReference"] = 1; + flag["GroupName"] = word; + flag["GroupIndex"] = HAS.call(re_obj.group, word) ? re_obj.group[word] : null; + sequence.push(Node(T_SPECIAL, word, flag)); + word = ''; + } + + else if (HAS.call(specialCharsEscaped, ch) && ('/' !== ch)) + { + if (wordlen) + { + sequence.push( Node(T_STRING, word) ); + word = ''; + wordlen = 0; + } + flag = {}; + flag[ specialCharsEscaped[ch] ] = 1; + sequence.push( Node(T_SPECIAL, ch, flag) ); + } + + else if (('1' <= ch) && ('9' >= ch)) + { + if (wordlen) + { + sequence.push(Node(T_STRING, word)); + word = ''; + wordlen = 0; + } + word = ch; + while (re_obj.pos < lre) + { + ch = re_obj.re[CHAR](re_obj.pos); + if (('0' <= ch) && ('9' >= ch)) {word += ch; re_obj.pos++;} + else break; + } + flag = {}; + flag['BackReference'] = 1; + flag['GroupName'] = word; + flag['GroupIndex'] = parseInt(word, 10); + sequence.push(Node(T_SPECIAL, word, flag)); + word = ''; + } + + else + { + word += ch; + wordlen += 1; + } + } + + else + { + // group end + if ((re_obj.inGroup > 0) && (')' === ch)) + { + if (wordlen) + { + sequence.push(Node(T_STRING, word)); + word = ''; + wordlen = 0; + } + if (alternation.length) + { + alternation.push(Node(T_SEQUENCE, sequence)); + sequence = []; + flag = {}; + flag[specialChars['|']] = 1; + return Node(T_GROUP, Node(T_ALTERNATION, alternation, flag), flags); + } + else + { + return Node(T_GROUP, Node(T_SEQUENCE, sequence), flags); + } + } + + // parse alternation + else if ('|' === ch) + { + if (wordlen) + { + sequence.push(Node(T_STRING, word)); + word = ''; + wordlen = 0; + } + alternation.push(Node(T_SEQUENCE, sequence)); + sequence = []; + } + + // parse character group + else if ('[' === ch) + { + if (wordlen) + { + sequence.push(Node(T_STRING, word)); + word = ''; + wordlen = 0; + } + sequence.push(chargroup(re_obj)); + } + + // parse sub-group + else if ('(' === ch) + { + if (wordlen) + { + sequence.push(Node(T_STRING, word)); + word = ''; + wordlen = 0; + } + re_obj.inGroup += 1; + sequence.push(analyze_re(re_obj)); + re_obj.inGroup -= 1; + } + + // parse num repeats + else if ('{' === ch) + { + if (wordlen) + { + sequence.push(Node(T_STRING, word)); + word = ''; + wordlen = 0; + } + m = match_repeats(re_obj.re.substr(re_obj.pos-1)); + re_obj.pos += m[0].length-1; + flag = {val: m[0], "MatchMinimum": m[1], "MatchMaximum": m[2] || "unlimited", "min": parseInt(m[1],10), "max": m[2] ? parseInt(m[2],10) : -1}; + flag[specialChars[ch]] = 1; + if ((re_obj.pos < lre) && ('?' === re_obj.re[CHAR](re_obj.pos))) + { + flag["isGreedy"] = 0; + re_obj.pos++; + } + else + { + flag["isGreedy"] = 1; + } + var prev = sequence.pop(); + if ((T_STRING === prev.type) && (prev.val.length > 1)) + { + sequence.push(Node(T_STRING, prev.val.slice(0, -1))); + prev.val = prev.val.slice(-1); + } + sequence.push(Node(T_QUANTIFIER, prev, flag)); + } + + // quantifiers + else if (('*' === ch) || ('+' === ch) || ('?' === ch)) + { + if (wordlen) + { + sequence.push(Node(T_STRING, word)); + word = ''; + wordlen = 0; + } + flag = {}; + flag[specialChars[ch]] = 1; + flag["min"] = '+' === ch ? 1 : 0; + flag["max"] = '?' === ch ? 1 : -1; + if ((re_obj.pos < lre) && ('?' === re_obj.re[CHAR](re_obj.pos))) + { + flag["isGreedy"] = 0; + re_obj.pos++; + } + else + { + flag["isGreedy"] = 1; + } + var prev = sequence.pop(); + if ((T_STRING === prev.type) && (prev.val.length > 1)) + { + sequence.push(Node(T_STRING, prev.val.slice(0, -1))); + prev.val = prev.val.slice(-1); + } + sequence.push(Node(T_QUANTIFIER, prev, flag)); + } + + // special characters like ^, $, ., etc.. + else if (HAS.call(specialChars,ch)) + { + if (wordlen) + { + sequence.push(Node(T_STRING, word)); + word = ''; + wordlen = 0; + } + flag = {}; + flag[specialChars[ch]] = 1; + sequence.push(Node(T_SPECIAL, ch, flag)); + } + + else + { + word += ch; + wordlen += 1; + } + } + } + + if (wordlen) + { + sequence.push(Node(T_STRING, word)); + word = ''; + wordlen = 0; + } + + if (alternation.length) + { + alternation.push(Node(T_SEQUENCE, sequence)); + sequence = []; + flag = {}; + flags[specialChars['|']] = 1; + return Node(T_ALTERNATION, alternation, flag); + } + return Node(T_SEQUENCE, sequence); + } +; + +// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions +// https://docs.python.org/3/library/re.html +// http://php.net/manual/en/reference.pcre.pattern.syntax.php +// A simple regular expression analyzer +function Analyzer(re, delim, flavor) +{ + if (!(this instanceof Analyzer)) return new Analyzer(re, delim, flavor); + if (re) this.input(re, delim, flavor); +} +Analyzer.VERSION = __version__; +Analyzer[PROTO] = { + + constructor: Analyzer, + + ast: null, + flavor: '', + re: null, + fl: null, + src: null, + grp: null, + min: null, + max: null, + ch: null, + bc: true, + + dispose: function() { + var self = this; + self.ast = null; + self.flavor = null; + self.re = null; + self.fl = null; + self.src = null; + self.grp = null; + self.min = null; + self.max = null; + self.ch = null; + return self; + }, + + reset: function() { + var self = this; + self.ast = null; + self.src = null; + self.grp = null; + self.min = null; + self.max = null; + self.ch = null; + return self; + }, + + backwardsCompatible: function(enable) { + this.bc = !!enable; + return this; + }, + + input: function(re, delim, flavor) { + var self = this; + if (!arguments.length) return self.re; + if (re) + { + delim = false === delim ? false : (delim || '/'); + var l, ch, fl = {}; + re = re.toString(); + l = re.length; + + if (delim) + { + // parse re flags, if any + while (0 < l) + { + ch = re[CHAR](l-1); + if (delim === ch) break; + else {fl[ch] = 1; --l;} + } + + if (0 < l) + { + // remove re delimiters + if ((delim === re[CHAR](0)) && (delim === re[CHAR](l-1))) re = re.slice(1, l-1); + else re = re.slice(0, l); + } + else + { + re = ''; + } + } + + // re is different, reset the ast, etc + if (self.re !== re) self.reset(); + self.re = re; self.fl = fl; self.flavor = String(flavor || ''); + } + return self; + }, + + analyze: function() { + var self = this; + if ((null != self.re) && (null === self.ast)) + { + var re = new RE_OBJ(self.re, self.fl, self.flavor); + self.ast = analyze_re(re); + re.dispose(); + } + return self; + }, + + synthesize: function(escaped) { + var self = this, state, re; + if (null == self.re) return self; + if (null === self.ast) + { + self.analyze(); + self.src = null; + self.grp = null; + } + if (null === self.src) + { + state = { + MAP : T_SEQUENCE|T_ALTERNATION|T_GROUP|T_CHARGROUP|T_QUANTIFIER, + REDUCE : T_UNICODECHAR|T_HEXCHAR|T_SPECIAL|T_CHARS|T_CHARRANGE|T_STRING, + IGNORE : T_COMMENT, + map : map_src, + reduce : reduce_src, + escaped : false !== escaped, + compatibility : self.bc, + group : {} + }; + re = walk({src:'',group:{}}, self.ast, state); + self.src = re.src; self.grp = re.group; + } + return self; + }, + + source: function() { + var self = this; + if (null == self.re) return null; + if (null === self.src) self.synthesize(); + return self.src; + }, + + groups: function(raw) { + var self = this; + if (null == self.re) return null; + if (null === self.grp) self.synthesize(); + return true === raw ? sel.grp : clone(self.grp); + }, + + compile: function(flags, notBackwardsCompatible) { + var self = this; + if (null == self.re) return null; + flags = flags || self.fl || {}; + return new RegExp(self.source(), (flags.g||flags.G?'g':'')+(flags.i||flags.I?'i':'')+(flags.m||flags.M?'m':'')+(flags.y||flags.Y?'y':'')+(flags.u?'u':'')+(flags.d?'d':'')+(flags.s?'s':'')); + }, + + tree: function(flat) { + var self = this; + if (null == self.re) return null; + if (null === self.ast) self.analyze(); + return true===flat ? self.ast.toObject() : self.ast; + }, + + // experimental feature + sample: function(maxlen, numsamples) { + var self = this, state; + if (null == self.re) return null; + if (null === self.ast) self.analyze(); + state = { + MAP : T_SEQUENCE|T_ALTERNATION|T_GROUP|T_CHARGROUP|T_QUANTIFIER, + REDUCE : T_UNICODECHAR|T_HEXCHAR|T_SPECIAL|T_CHARS|T_CHARRANGE|T_STRING, + IGNORE : T_COMMENT, + map : map_any, + reduce : reduce_str, + maxLength : (maxlen|0) || 1, + isCaseInsensitive : null != self.fl.i, + group : {} + }; + numsamples = (numsamples|0) || 1; + if (1 < numsamples) + { + var samples = new Array(numsamples); + for (var i=0; i<numsamples; ++i) samples[i] = walk('', self.ast, state); + return samples; + } + return walk('', self.ast, state); + }, + + // experimental feature + minimum: function() { + var self = this, state; + if (null == self.re) return 0; + if (null === self.ast) + { + self.analyze( ); + self.min = null; + } + if (null === self.min) + { + state = { + MAP : T_SEQUENCE|T_ALTERNATION|T_GROUP|T_CHARGROUP|T_QUANTIFIER, + REDUCE : T_UNICODECHAR|T_HEXCHAR|T_SPECIAL|T_CHARS|T_CHARRANGE|T_STRING, + IGNORE : T_COMMENT, + map : map_min, + reduce : reduce_len, + group : {} + }; + self.min = walk(0, self.ast, state)|0; + } + return self.min; + }, + + // experimental feature + maximum: function() { + var self = this, state; + if (null == self.re) return 0; + if (null === self.ast) + { + self.analyze(); + self.max = null; + } + if (null === self.max) + { + state = { + MAP : T_SEQUENCE|T_ALTERNATION|T_GROUP|T_CHARGROUP|T_QUANTIFIER, + REDUCE : T_UNICODECHAR|T_HEXCHAR|T_SPECIAL|T_CHARS|T_CHARRANGE|T_STRING, + IGNORE : T_COMMENT, + map : map_max, + reduce : reduce_len, + group : {} + }; + self.max = walk(0, self.ast, state); + } + return self.max; + }, + + // experimental feature + peek: function() { + var self = this, state, isCaseInsensitive, peek, n, c, p, cases; + if (null == self.re) return null; + if (null === self.ast) + { + self.analyze(); + self.ch = null; + } + if (null === self.ch) + { + state = { + MAP : T_SEQUENCE|T_ALTERNATION|T_GROUP|T_CHARGROUP|T_QUANTIFIER, + REDUCE : T_UNICODECHAR|T_HEXCHAR|T_SPECIAL|T_CHARS|T_CHARRANGE|T_STRING, + IGNORE : T_COMMENT, + map : map_1st, + reduce : reduce_peek, + group : {}, + }; + self.ch = walk({positive:{},negative:{}}, self.ast, state); + } + peek = {positive:clone(self.ch.positive), negative:clone(self.ch.negative)}; + isCaseInsensitive = null != self.fl.i; + for (n in peek) + { + cases = {}; + // either positive or negative + p = peek[n]; + for (c in p) + { + if ('\\d' === c) + { + delete p[c]; + cases = concat(cases, character_range('0', '9')); + } + + else if ('\\s' === c) + { + delete p[c]; + cases = concat(cases, ['\f','\n','\r','\t','\v','\u00A0','\u2028','\u2029']); + } + + else if ('\\w' === c) + { + delete p[c]; + cases = concat(cases, ['_'].concat(character_range('0', '9')).concat(character_range('a', 'z')).concat(character_range('A', 'Z'))); + } + + else if ('\\b' === c) + { + delete p[c]; + cases[ specialChars['b'] ] = 1; + } + + else if ('\\.' === c) + { + delete p[c]; + cases[ specialChars['.'] ] = 1; + } + + /*else if ('\\^' === c) + { + delete p[c]; + cases[ specialChars['^'] ] = 1; + } + + else if ('\\$' === c) + { + delete p[c]; + cases[ specialChars['$'] ] = 1; + }*/ + + else if ( (ESC !== c[CHAR](0)) && isCaseInsensitive ) + { + cases[ c.toLowerCase() ] = 1; + cases[ c.toUpperCase() ] = 1; + } + + else if ( ESC === c[CHAR](0) ) + { + delete p[c]; + } + } + peek[n] = concat(p, cases); + } + return peek; + } +}; +// alias +Analyzer[PROTO].set = Analyzer[PROTO].input; +/* +// custom method to access named groups feature, if any +RegExp[PROTO].$group = null; +RegExp[PROTO].group = function( group ){ + group = group || 0; + return this.$group && this.$group.hasOwnProperty(group) ? this.$group[group] : group; +}; +*/ + +// A simple regular expression composer +function Composer() +{ + var self = this; + if (!(self instanceof Composer)) return new Composer(); + self.re = null; + self.reset(); +} +Composer.VERSION = __version__; +Composer[PROTO] = { + + constructor: Composer, + + re: null, + g: 0, + grp: null, + level: 0, + ast: null, + + dispose: function() { + var self = this; + self.re = null; + self.g = null; + self.grp = null; + self.level = null; + self.ast = null; + return self; + }, + + reset: function() { + var self = this; + self.g = 0; + self.grp = {}; + self.level = 0; + self.ast = [{node: [], type: T_SEQUENCE, flag: ''}]; + return self; + }, + + compose: function(/* flags */) { + var self = this, + fl = slice(arguments).join(''), + src = self.ast[0].node.join(''); + self.re = { + source : src, + flags : fl, + groups : self.grp, + pattern : RE(src, fl) + }; + self.reset(); + return self.re; + }, + + partial: function(reset) { + var self = this, re = self.ast[0].node.join(''); + if (false !== reset) self.reset(); + return re; + }, + + token: function(token, escaped) { + var self = this; + if (null != token) + self.ast[self.level].node.push(escaped ? esc_re(String(token), ESC) : String(token)); + return self; + }, + + literal: function(literal) { + return this.token(String(literal), true); + }, + + regexp: function(re) { + return this.token(String(re), false); + }, + + SOL: function() { + var self = this; + self.ast[self.level].node.push('^'); + return self; + }, + + SOF: function() { + return this.SOL(); + }, + + EOL: function() { + var self = this; + self.ast[self.level].node.push('$'); + return self; + }, + + EOF: function() { + return this.EOL(); + }, + + LF: function() { + var self = this; + self.ast[self.level].node.push(ESC+'n'); + return self; + }, + + CR: function() { + var self = this; + self.ast[self.level].node.push(ESC+'r'); + return self; + }, + + TAB: function() { + var self = this; + self.ast[self.level].node.push(ESC+'t'); + return self; + }, + + CTRL: function(code) { + var self = this; + self.ast[self.level].node.push(ESC+'c'+(code||0)); + return self; + }, + + HEX: function(code) { + var self = this; + self.ast[self.level].node.push(ESC+'x'+pad(code||0, 2)); + return self; + }, + + UNICODE: function(code, uni) { + var self = this; + self.ast[self.level].node.push(true === uni ? ESC+'u{'+String(code||0)+'}' : ESC+'u'+pad(code||0, 4)); + return self; + }, + + backSpace: function() { + var self = this; + self.ast[self.level].node.push('['+ESC+'b]'); + return self; + }, + + any: function(multiline) { + var self = this; + self.ast[self.level].node.push(multiline ? '['+ESC+'s'+ESC+'S]' : '.'); + return self; + }, + + space: function(positive) { + var self = this; + if (arguments.length < 1) positive = true; + self.ast[self.level].node.push(!positive ? ESC+'S' : ESC+'s'); + return self; + }, + + digit: function(positive) { + var self = this; + if (arguments.length < 1) positive = true; + self.ast[self.level].node.push(!positive ? ESC+'D' : ESC+'d'); + return self; + }, + + word: function(positive) { + var self = this; + if (arguments.length < 1) positive = true; + self.ast[self.level].node.push(!positive ? ESC+'W' : ESC+'w'); + return self; + }, + + boundary: function(positive) { + var self = this; + if (arguments.length < 1) positive = true; + self.ast[self.level].node.push(!positive ? ESC+'B' : ESC+'b'); + return self; + }, + + characters: function() { + var self = this; + if (T_CHARGROUP === self.ast[self.level].type) + self.ast[self.level].node.push(getArgs(arguments,1).map(function(c){ return esc_re(String(c), ESC, 1); }).join('')); + return self; + }, + + range: function(start, end) { + var self = this; + if (null != start && null != end && T_CHARGROUP === self.ast[self.level].type) + self.ast[self.level].node.push(esc_re(String(start), ESC, 1)+'-'+esc_re(String(end), ESC, 1)); + return self; + }, + + backReference: function(n) { + var self = this; + self.ast[self.level].node.push(ESC+(HAS.call(self.grp, n) ? self.grp[n] : n|0)); + return self; + }, + + repeat: function(min, max, greedy) { + var self = this; + if (null == min) return self; + if (arguments.length < 3) greedy = true; + var repeat = (null==max || min===max ? ('{'+String(min)+'}') : ('{'+String(min)+','+String(max)+'}')) + (!greedy ? '?' : ''); + self.ast[self.level].node[self.ast[self.level].node.length-1] += repeat; + return self; + }, + + zeroOrOne: function(greedy) { + var self = this; + if (arguments.length < 1) greedy = true; + self.ast[self.level].node[self.ast[self.level].node.length-1] += (!greedy ? '??' : '?'); + return self; + }, + + zeroOrMore: function(greedy) { + var self = this; + if (arguments.length < 1) greedy = true; + self.ast[self.level].node[self.ast[self.level].node.length-1] += (!greedy ? '*?' : '*'); + return self; + }, + + oneOrMore: function(greedy) { + var self = this; + if (arguments.length < 1) greedy = true; + self.ast[self.level].node[self.ast[self.level].node.length-1] += (!greedy ? '+?' : '+'); + return self; + }, + + alternate: function() { + var self = this; + self.level++; + self.ast.push({node: [], type: T_ALTERNATION, flag: '', sequences: []}); + return self; + }, + + either: function() { + return this.alternate(); + }, + + or_: function() { + var self = this, ast = self.ast[self.level]; + if ((T_ALTERNATION === ast.type) && ast.node.length) + { + ast.sequences.push(ast.node.join('')); + ast.node = []; + } + return self; + }, + + group: function(opts, v) { + var self = this, type = T_GROUP, fl = ''; + if (is_string(opts)) + { + fl = opts; opts = {}; + opts[fl] = v; fl = ''; + } + else + { + opts = opts || {}; + } + if (!!opts['name'] || !!opts['named']) + { + self.g++; + self.grp[self.g] = self.g; + self.grp[opts.name||opts.named] = self.g; + } + else if ((true === opts['lookahead']) || (false === opts['lookahead'])) + { + fl = false === opts['lookahead'] ? '?!' : '?='; + } + else if ((true === opts['lookbehind']) || (false === opts['lookbehind'])) + { + fl = false === opts['lookbehind'] ? '?<!' : '?<='; + } + else if (true === opts['nocapture']) + { + fl = '?:'; + } + else if ((true === opts['characters']) || (false === opts['characters'])) + { + type = T_CHARGROUP; + fl = false === opts['characters'] ? '^' : ''; + } + else + { + self.g++; + self.grp[self.g] = self.g; + } + self.level++; + self.ast.push({node: [], type: type, flag: fl}); + return self; + }, + + subGroup: function(opts) { + return this.group(opts); + }, + + characterGroup: function(positive) { + return this.group({'characters':false!==positive}); + }, + + namedGroup: function(name) { + return this.group({'name':name}); + }, + + nonCaptureGroup: function() { + return this.group({'nocapture':true}); + }, + + lookAheadGroup: function(positive) { + return this.group({'lookahead':false!==positive}); + }, + + lookBehindGroup: function(positive) { + return this.group({'lookbehind':false!==positive}); + }, + + end: function(n) { + var self = this, prev, type, flag, part, sequences; + n = (arguments.length ? n|0 : 1) || 1; + // support ending multiple blocks at once + while (n--) + { + prev = self.ast.length ? self.ast.pop() : null; + type = prev ? prev.type : 0; + flag = prev ? prev.flag : ''; + part = prev ? prev.node : []; + if (T_ALTERNATION === type) + { + sequences = prev ? prev.sequences : []; + part = !part.length ? sequences : sequences.concat(part.join('')); + } + if (0 < self.level) + { + --self.level; + if (T_ALTERNATION === type) + self.ast[self.level].node.push(part.join('|')); + else if (T_GROUP === type) + self.ast[self.level].node.push('('+flag+part.join('')+')'); + else if (T_CHARGROUP === type) + self.ast[self.level].node.push('['+flag+part.join('')+']'); + else + self.ast[self.level].node.push(part.join('')); + } + } + return self; + } +}; +// aliases +var CP = Composer[PROTO]; +CP.startOfLine = CP.SOL; +CP.endOfLine = CP.EOL; +CP.startOfInput = CP.SOF; +CP.endOfInput = CP.EOF; +CP.match = CP.token; +CP.sub = CP.regexp; +CP.lineFeed = CP.LF; +CP.carriageReturn = CP.CR; +CP.tabulate = CP.TAB; +CP.wordBoundary = CP.boundary; +CP.chars = CP.characters; +CP.charGroup = CP.characterGroup; +CP.namedSubGroup = CP.namedGroup; +CP.nonCaptureSubGroup = CP.nonCaptureGroup; +CP.lookAheadSubGroup = CP.lookAheadGroup; +CP.lookBehindSubGroup = CP.lookBehindGroup; + +var Regex = { + VERSION : __version__, + Node : Node, + Analyzer : Analyzer, + Composer : Composer +}; +/* export the module */ +return Regex; +})(); |