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Diffstat (limited to 'third_party/webkit/PerformanceTests/Speedometer/resources/flightjs-example-app/components/mustache/mustache.js')
-rw-r--r-- | third_party/webkit/PerformanceTests/Speedometer/resources/flightjs-example-app/components/mustache/mustache.js | 635 |
1 files changed, 635 insertions, 0 deletions
diff --git a/third_party/webkit/PerformanceTests/Speedometer/resources/flightjs-example-app/components/mustache/mustache.js b/third_party/webkit/PerformanceTests/Speedometer/resources/flightjs-example-app/components/mustache/mustache.js new file mode 100644 index 0000000000..7286ecf299 --- /dev/null +++ b/third_party/webkit/PerformanceTests/Speedometer/resources/flightjs-example-app/components/mustache/mustache.js @@ -0,0 +1,635 @@ +/*! + * mustache.js - Logic-less {{mustache}} templates with JavaScript + * http://github.com/janl/mustache.js + */ + +/*global define: false*/ + +var Mustache; + +/*! + * mustache.js - Logic-less {{mustache}} templates with JavaScript + * http://github.com/janl/mustache.js + */ + +/*global define: false*/ + +var Mustache; + +(function (exports) { + if (typeof module !== "undefined" && module.exports) { + module.exports = exports; // CommonJS + } else if (typeof define === "function") { + define(exports); // AMD + } else { + Mustache = exports; // <script> + } +}((function () { + + var exports = {}; + + exports.name = "mustache.js"; + exports.version = "0.7.1"; + exports.tags = ["{{", "}}"]; + + exports.Scanner = Scanner; + exports.Context = Context; + exports.Writer = Writer; + + var whiteRe = /\s*/; + var spaceRe = /\s+/; + var nonSpaceRe = /\S/; + var eqRe = /\s*=/; + var curlyRe = /\s*\}/; + var tagRe = /#|\^|\/|>|\{|&|=|!/; + + // Workaround for https://issues.apache.org/jira/browse/COUCHDB-577 + // See https://github.com/janl/mustache.js/issues/189 + function testRe(re, string) { + return RegExp.prototype.test.call(re, string); + } + + function isWhitespace(string) { + return !testRe(nonSpaceRe, string); + } + + var isArray = Array.isArray || function (obj) { + return Object.prototype.toString.call(obj) === "[object Array]"; + }; + + function escapeRe(string) { + return string.replace(/[\-\[\]{}()*+?.,\\\^$|#\s]/g, "\\$&"); + } + + var entityMap = { + "&": "&", + "<": "<", + ">": ">", + '"': '"', + "'": ''', + "/": '/' + }; + + function escapeHtml(string) { + return String(string).replace(/[&<>"'\/]/g, function (s) { + return entityMap[s]; + }); + } + + // Export the escaping function so that the user may override it. + // See https://github.com/janl/mustache.js/issues/244 + exports.escape = escapeHtml; + + function Scanner(string) { + this.string = string; + this.tail = string; + this.pos = 0; + } + + /** + * Returns `true` if the tail is empty (end of string). + */ + Scanner.prototype.eos = function () { + return this.tail === ""; + }; + + /** + * Tries to match the given regular expression at the current position. + * Returns the matched text if it can match, the empty string otherwise. + */ + Scanner.prototype.scan = function (re) { + var match = this.tail.match(re); + + if (match && match.index === 0) { + this.tail = this.tail.substring(match[0].length); + this.pos += match[0].length; + return match[0]; + } + + return ""; + }; + + /** + * Skips all text until the given regular expression can be matched. Returns + * the skipped string, which is the entire tail if no match can be made. + */ + Scanner.prototype.scanUntil = function (re) { + var match, pos = this.tail.search(re); + + switch (pos) { + case -1: + match = this.tail; + this.pos += this.tail.length; + this.tail = ""; + break; + case 0: + match = ""; + break; + default: + match = this.tail.substring(0, pos); + this.tail = this.tail.substring(pos); + this.pos += pos; + } + + return match; + }; + + function Context(view, parent) { + this.view = view; + this.parent = parent; + this.clearCache(); + } + + Context.make = function (view) { + return (view instanceof Context) ? view : new Context(view); + }; + + Context.prototype.clearCache = function () { + this._cache = {}; + }; + + Context.prototype.push = function (view) { + return new Context(view, this); + }; + + Context.prototype.lookup = function (name) { + var value = this._cache[name]; + + if (!value) { + if (name === ".") { + value = this.view; + } else { + var context = this; + + while (context) { + if (name.indexOf(".") > 0) { + var names = name.split("."), i = 0; + + value = context.view; + + while (value && i < names.length) { + value = value[names[i++]]; + } + } else { + value = context.view[name]; + } + + if (value != null) { + break; + } + + context = context.parent; + } + } + + this._cache[name] = value; + } + + if (typeof value === "function") { + value = value.call(this.view); + } + + return value; + }; + + function Writer() { + this.clearCache(); + } + + Writer.prototype.clearCache = function () { + this._cache = {}; + this._partialCache = {}; + }; + + Writer.prototype.compile = function (template, tags) { + var fn = this._cache[template]; + + if (!fn) { + var tokens = exports.parse(template, tags); + fn = this._cache[template] = this.compileTokens(tokens, template); + } + + return fn; + }; + + Writer.prototype.compilePartial = function (name, template, tags) { + var fn = this.compile(template, tags); + this._partialCache[name] = fn; + return fn; + }; + + Writer.prototype.compileTokens = function (tokens, template) { + var fn = compileTokens(tokens); + var self = this; + + return function (view, partials) { + if (partials) { + if (typeof partials === "function") { + self._loadPartial = partials; + } else { + for (var name in partials) { + self.compilePartial(name, partials[name]); + } + } + } + + return fn(self, Context.make(view), template); + }; + }; + + Writer.prototype.render = function (template, view, partials) { + return this.compile(template)(view, partials); + }; + + Writer.prototype._section = function (name, context, text, callback) { + var value = context.lookup(name); + + switch (typeof value) { + case "object": + if (isArray(value)) { + var buffer = ""; + + for (var i = 0, len = value.length; i < len; ++i) { + buffer += callback(this, context.push(value[i])); + } + + return buffer; + } + + return value ? callback(this, context.push(value)) : ""; + case "function": + var self = this; + var scopedRender = function (template) { + return self.render(template, context); + }; + + var result = value.call(context.view, text, scopedRender); + return result != null ? result : ""; + default: + if (value) { + return callback(this, context); + } + } + + return ""; + }; + + Writer.prototype._inverted = function (name, context, callback) { + var value = context.lookup(name); + + // Use JavaScript's definition of falsy. Include empty arrays. + // See https://github.com/janl/mustache.js/issues/186 + if (!value || (isArray(value) && value.length === 0)) { + return callback(this, context); + } + + return ""; + }; + + Writer.prototype._partial = function (name, context) { + if (!(name in this._partialCache) && this._loadPartial) { + this.compilePartial(name, this._loadPartial(name)); + } + + var fn = this._partialCache[name]; + + return fn ? fn(context) : ""; + }; + + Writer.prototype._name = function (name, context) { + var value = context.lookup(name); + + if (typeof value === "function") { + value = value.call(context.view); + } + + return (value == null) ? "" : String(value); + }; + + Writer.prototype._escaped = function (name, context) { + return exports.escape(this._name(name, context)); + }; + + /** + * Calculates the bounds of the section represented by the given `token` in + * the original template by drilling down into nested sections to find the + * last token that is part of that section. Returns an array of [start, end]. + */ + function sectionBounds(token) { + var start = token[3]; + var end = start; + + var tokens; + while ((tokens = token[4]) && tokens.length) { + token = tokens[tokens.length - 1]; + end = token[3]; + } + + return [start, end]; + } + + /** + * Low-level function that compiles the given `tokens` into a function + * that accepts three arguments: a Writer, a Context, and the template. + */ + function compileTokens(tokens) { + var subRenders = {}; + + function subRender(i, tokens, template) { + if (!subRenders[i]) { + var fn = compileTokens(tokens); + subRenders[i] = function (writer, context) { + return fn(writer, context, template); + }; + } + + return subRenders[i]; + } + + return function (writer, context, template) { + var buffer = ""; + var token, sectionText; + + for (var i = 0, len = tokens.length; i < len; ++i) { + token = tokens[i]; + + switch (token[0]) { + case "#": + sectionText = template.slice.apply(template, sectionBounds(token)); + buffer += writer._section(token[1], context, sectionText, subRender(i, token[4], template)); + break; + case "^": + buffer += writer._inverted(token[1], context, subRender(i, token[4], template)); + break; + case ">": + buffer += writer._partial(token[1], context); + break; + case "&": + buffer += writer._name(token[1], context); + break; + case "name": + buffer += writer._escaped(token[1], context); + break; + case "text": + buffer += token[1]; + break; + } + } + + return buffer; + }; + } + + /** + * Forms the given array of `tokens` into a nested tree structure where + * tokens that represent a section have a fifth item: an array that contains + * all tokens in that section. + */ + function nestTokens(tokens) { + var tree = []; + var collector = tree; + var sections = []; + var token, section; + + for (var i = 0; i < tokens.length; ++i) { + token = tokens[i]; + + switch (token[0]) { + case "#": + case "^": + token[4] = []; + sections.push(token); + collector.push(token); + collector = token[4]; + break; + case "/": + if (sections.length === 0) { + throw new Error("Unopened section: " + token[1]); + } + + section = sections.pop(); + + if (section[1] !== token[1]) { + throw new Error("Unclosed section: " + section[1]); + } + + if (sections.length > 0) { + collector = sections[sections.length - 1][4]; + } else { + collector = tree; + } + break; + default: + collector.push(token); + } + } + + // Make sure there were no open sections when we're done. + section = sections.pop(); + + if (section) { + throw new Error("Unclosed section: " + section[1]); + } + + return tree; + } + + /** + * Combines the values of consecutive text tokens in the given `tokens` array + * to a single token. + */ + function squashTokens(tokens) { + var token, lastToken, squashedTokens = []; + + for (var i = 0; i < tokens.length; ++i) { + token = tokens[i]; + + if (lastToken && lastToken[0] === "text" && token[0] === "text") { + lastToken[1] += token[1]; + lastToken[3] = token[3]; + } else { + lastToken = token; + squashedTokens.push(token); + } + } + + return squashedTokens; + } + + function escapeTags(tags) { + if (tags.length !== 2) { + throw new Error("Invalid tags: " + tags.join(" ")); + } + + return [ + new RegExp(escapeRe(tags[0]) + "\\s*"), + new RegExp("\\s*" + escapeRe(tags[1])) + ]; + } + + /** + * Breaks up the given `template` string into a tree of token objects. If + * `tags` is given here it must be an array with two string values: the + * opening and closing tags used in the template (e.g. ["<%", "%>"]). Of + * course, the default is to use mustaches (i.e. Mustache.tags). + */ + exports.parse = function (template, tags) { + template = template || ''; + tags = tags || exports.tags; + + var tagRes = escapeTags(tags); + var scanner = new Scanner(template); + + var tokens = [], // Buffer to hold the tokens + spaces = [], // Indices of whitespace tokens on the current line + hasTag = false, // Is there a {{tag}} on the current line? + nonSpace = false; // Is there a non-space char on the current line? + + // Strips all whitespace tokens array for the current line + // if there was a {{#tag}} on it and otherwise only space. + function stripSpace() { + if (hasTag && !nonSpace) { + while (spaces.length) { + tokens.splice(spaces.pop(), 1); + } + } else { + spaces = []; + } + + hasTag = false; + nonSpace = false; + } + + var start, type, value, chr; + + while (!scanner.eos()) { + start = scanner.pos; + value = scanner.scanUntil(tagRes[0]); + + if (value) { + for (var i = 0, len = value.length; i < len; ++i) { + chr = value.charAt(i); + + if (isWhitespace(chr)) { + spaces.push(tokens.length); + } else { + nonSpace = true; + } + + tokens.push(["text", chr, start, start + 1]); + start += 1; + + if (chr === "\n") { + stripSpace(); // Check for whitespace on the current line. + } + } + } + + start = scanner.pos; + + // Match the opening tag. + if (!scanner.scan(tagRes[0])) { + break; + } + + hasTag = true; + type = scanner.scan(tagRe) || "name"; + + // Skip any whitespace between tag and value. + scanner.scan(whiteRe); + + // Extract the tag value. + if (type === "=") { + value = scanner.scanUntil(eqRe); + scanner.scan(eqRe); + scanner.scanUntil(tagRes[1]); + } else if (type === "{") { + var closeRe = new RegExp("\\s*" + escapeRe("}" + tags[1])); + value = scanner.scanUntil(closeRe); + scanner.scan(curlyRe); + scanner.scanUntil(tagRes[1]); + type = "&"; + } else { + value = scanner.scanUntil(tagRes[1]); + } + + // Match the closing tag. + if (!scanner.scan(tagRes[1])) { + throw new Error("Unclosed tag at " + scanner.pos); + } + + tokens.push([type, value, start, scanner.pos]); + + if (type === "name" || type === "{" || type === "&") { + nonSpace = true; + } + + // Set the tags for the next time around. + if (type === "=") { + tags = value.split(spaceRe); + tagRes = escapeTags(tags); + } + } + + tokens = squashTokens(tokens); + + return nestTokens(tokens); + }; + + // The high-level clearCache, compile, compilePartial, and render functions + // use this default writer. + var _writer = new Writer(); + + /** + * Clears all cached templates and partials in the default writer. + */ + exports.clearCache = function () { + return _writer.clearCache(); + }; + + /** + * Compiles the given `template` to a reusable function using the default + * writer. + */ + exports.compile = function (template, tags) { + return _writer.compile(template, tags); + }; + + /** + * Compiles the partial with the given `name` and `template` to a reusable + * function using the default writer. + */ + exports.compilePartial = function (name, template, tags) { + return _writer.compilePartial(name, template, tags); + }; + + /** + * Compiles the given array of tokens (the output of a parse) to a reusable + * function using the default writer. + */ + exports.compileTokens = function (tokens, template) { + return _writer.compileTokens(tokens, template); + }; + + /** + * Renders the `template` with the given `view` and `partials` using the + * default writer. + */ + exports.render = function (template, view, partials) { + return _writer.render(template, view, partials); + }; + + // This is here for backwards compatibility with 0.4.x. + exports.to_html = function (template, view, partials, send) { + var result = exports.render(template, view, partials); + + if (typeof send === "function") { + send(result); + } else { + return result; + } + }; + + return exports; + +}()))); |