diff options
Diffstat (limited to '')
-rw-r--r-- | public/js/vendor/codemirror/addon/search/searchcursor.js | 289 |
1 files changed, 289 insertions, 0 deletions
diff --git a/public/js/vendor/codemirror/addon/search/searchcursor.js b/public/js/vendor/codemirror/addon/search/searchcursor.js new file mode 100644 index 0000000..eccd81a --- /dev/null +++ b/public/js/vendor/codemirror/addon/search/searchcursor.js @@ -0,0 +1,289 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: http://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 ensureGlobal(regexp) { + return regexp.global ? regexp : new RegExp(regexp.source, regexpFlags(regexp) + "g") + } + + function maybeMultiline(regexp) { + return /\\s|\\n|\n|\\W|\\D|\[\^/.test(regexp.source) + } + + function searchRegexpForward(doc, regexp, start) { + regexp = ensureGlobal(regexp) + 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 = ensureGlobal(regexp) + 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++) { + 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) { + var cutOff = 0, match + for (;;) { + regexp.lastIndex = cutOff + var newMatch = regexp.exec(string) + if (!newMatch) return match + match = newMatch + cutOff = match.index + (match[0].length || 1) + if (cutOff == string.length) return match + } + } + + function searchRegexpBackward(doc, regexp, start) { + regexp = ensureGlobal(regexp) + for (var line = start.line, ch = start.ch, first = doc.firstLine(); line >= first; line--, ch = -1) { + var string = doc.getLine(line) + if (ch > -1) string = string.slice(0, ch) + var match = lastMatchIn(string, regexp) + if (match) + return {from: Pos(line, match.index), + to: Pos(line, match.index + match[0].length), + match: match} + } + } + + function searchRegexpBackwardMultiline(doc, regexp, start) { + regexp = ensureGlobal(regexp) + var string, chunk = 1 + for (var line = start.line, first = doc.firstLine(); line >= first;) { + for (var i = 0; i < chunk; i++) { + var curLine = doc.getLine(line--) + string = string == null ? curLine.slice(0, start.ch) : curLine + "\n" + string + } + chunk *= 2 + + var match = lastMatchIn(string, regexp) + 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 (end.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 = ensureGlobal(query) + 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-compatiblity 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) + }) +}); |