/** * marked - a markdown parser * Copyright (c) 2011-2014, Christopher Jeffrey. (MIT Licensed) * https://github.com/chjj/marked */ (function() { var block = { newline: /^\n+/, code: /^( {4}[^\n]+\n*)+/, fences: noop, hr: /^( *[-*_]){3,} *(?:\n+|$)/, heading: /^ *(#{1,6}) *([^\n]+?) *#* *(?:\n+|$)/, nptable: noop, lheading: /^([^\n]+)\n *(=|-){2,} *(?:\n+|$)/, blockquote: /^( *>[^\n]+(\n(?!def)[^\n]+)*\n*)+/, list: /^( *)(bull) [\s\S]+?(?:hr|def|\n{2,}(?! )(?!\1bull )\n*|\s*$)/, html: /^ *(?:comment *(?:\n|\s*$)|closed *(?:\n{2,}|\s*$)|closing *(?:\n{2,}|\s*$))/, def: /^ *\[([^\]]+)\]: *]+)>?(?: +["(]([^\n]+)[")])? *(?:\n+|$)/, table: noop, paragraph: /^((?:[^\n]+\n?(?!hr|heading|lheading|blockquote|tag|def))+)\n*/, text: /^[^\n]+/ }; block.bullet = /(?:[*+-]|\d+\.)/; block.item = /^( *)(bull) [^\n]*(?:\n(?!\1bull )[^\n]*)*/; block.item = replace(block.item, "gm")(/bull/g, block.bullet)(); block.list = replace(block.list)(/bull/g, block.bullet)( "hr", "\\n+(?=\\1?(?:[-*_] *){3,}(?:\\n+|$))" )("def", "\\n+(?=" + block.def.source + ")")(); block.blockquote = replace(block.blockquote)("def", block.def)(); block._tag = "(?!(?:" + "a|em|strong|small|s|cite|q|dfn|abbr|data|time|code" + "|var|samp|kbd|sub|sup|i|b|u|mark|ruby|rt|rp|bdi|bdo" + "|span|br|wbr|ins|del|img)\\b)\\w+(?!:/|[^\\w\\s@]*@)\\b"; block.html = replace(block.html)("comment", //)( "closed", /<(tag)[\s\S]+?<\/\1>/ )("closing", /])*?>/)(/tag/g, block._tag)(); block.paragraph = replace(block.paragraph)("hr", block.hr)( "heading", block.heading )("lheading", block.lheading)("blockquote", block.blockquote)( "tag", "<" + block._tag )("def", block.def)(); block.normal = merge({}, block); block.gfm = merge({}, block.normal, { fences: /^ *(`{3,}|~{3,})[ \.]*(\S+)? *\n([\s\S]*?)\s*\1 *(?:\n+|$)/, paragraph: /^/, heading: /^ *(#{1,6}) +([^\n]+?) *#* *(?:\n+|$)/ }); block.gfm.paragraph = replace(block.paragraph)( "(?!", "(?!" + block.gfm.fences.source.replace("\\1", "\\2") + "|" + block.list.source.replace("\\1", "\\3") + "|" )(); block.tables = merge({}, block.gfm, { nptable: /^ *(\S.*\|.*)\n *([-:]+ *\|[-| :]*)\n((?:.*\|.*(?:\n|$))*)\n*/, table: /^ *\|(.+)\n *\|( *[-:]+[-| :]*)\n((?: *\|.*(?:\n|$))*)\n*/ }); function Lexer(options) { this.tokens = []; this.tokens.links = {}; this.options = options || marked.defaults; this.rules = block.normal; if (this.options.gfm) { if (this.options.tables) { this.rules = block.tables; } else { this.rules = block.gfm; } } } Lexer.rules = block; Lexer.lex = function(src, options) { var lexer = new Lexer(options); return lexer.lex(src); }; Lexer.prototype.lex = function(src) { src = src .replace(/\r\n|\r/g, "\n") .replace(/\t/g, " ") .replace(/\u00a0/g, " ") .replace(/\u2424/g, "\n"); return this.token(src, true); }; Lexer.prototype.token = function(src, top, bq) { var src = src.replace(/^ +$/gm, ""), next, loose, cap, bull, b, item, space, i, l; while (src) { if ((cap = this.rules.newline.exec(src))) { src = src.substring(cap[0].length); if (cap[0].length > 1) { this.tokens.push({ type: "space" }); } } if ((cap = this.rules.code.exec(src))) { src = src.substring(cap[0].length); cap = cap[0].replace(/^ {4}/gm, ""); this.tokens.push({ type: "code", text: !this.options.pedantic ? cap.replace(/\n+$/, "") : cap }); continue; } if ((cap = this.rules.fences.exec(src))) { src = src.substring(cap[0].length); this.tokens.push({ type: "code", lang: cap[2], text: cap[3] || "" }); continue; } if ((cap = this.rules.heading.exec(src))) { src = src.substring(cap[0].length); this.tokens.push({ type: "heading", depth: cap[1].length, text: cap[2] }); continue; } if (top && (cap = this.rules.nptable.exec(src))) { src = src.substring(cap[0].length); item = { type: "table", header: cap[1].replace(/^ *| *\| *$/g, "").split(/ *\| */), align: cap[2].replace(/^ *|\| *$/g, "").split(/ *\| */), cells: cap[3].replace(/\n$/, "").split("\n") }; for (i = 0; i < item.align.length; i++) { if (/^ *-+: *$/.test(item.align[i])) { item.align[i] = "right"; } else if (/^ *:-+: *$/.test(item.align[i])) { item.align[i] = "center"; } else if (/^ *:-+ *$/.test(item.align[i])) { item.align[i] = "left"; } else { item.align[i] = null; } } for (i = 0; i < item.cells.length; i++) { item.cells[i] = item.cells[i].split(/ *\| */); } this.tokens.push(item); continue; } if ((cap = this.rules.lheading.exec(src))) { src = src.substring(cap[0].length); this.tokens.push({ type: "heading", depth: cap[2] === "=" ? 1 : 2, text: cap[1] }); continue; } if ((cap = this.rules.hr.exec(src))) { src = src.substring(cap[0].length); this.tokens.push({ type: "hr" }); continue; } if ((cap = this.rules.blockquote.exec(src))) { src = src.substring(cap[0].length); this.tokens.push({ type: "blockquote_start" }); cap = cap[0].replace(/^ *> ?/gm, ""); this.token(cap, top, true); this.tokens.push({ type: "blockquote_end" }); continue; } if ((cap = this.rules.list.exec(src))) { src = src.substring(cap[0].length); bull = cap[2]; this.tokens.push({ type: "list_start", ordered: bull.length > 1 }); cap = cap[0].match(this.rules.item); next = false; l = cap.length; i = 0; for (; i < l; i++) { item = cap[i]; space = item.length; item = item.replace(/^ *([*+-]|\d+\.) +/, ""); if (~item.indexOf("\n ")) { space -= item.length; item = !this.options.pedantic ? item.replace(new RegExp("^ {1," + space + "}", "gm"), "") : item.replace(/^ {1,4}/gm, ""); } if (this.options.smartLists && i !== l - 1) { b = block.bullet.exec(cap[i + 1])[0]; if (bull !== b && !(bull.length > 1 && b.length > 1)) { src = cap.slice(i + 1).join("\n") + src; i = l - 1; } } loose = next || /\n\n(?!\s*$)/.test(item); if (i !== l - 1) { next = item.charAt(item.length - 1) === "\n"; if (!loose) loose = next; } this.tokens.push({ type: loose ? "loose_item_start" : "list_item_start" }); this.token(item, false, bq); this.tokens.push({ type: "list_item_end" }); } this.tokens.push({ type: "list_end" }); continue; } if ((cap = this.rules.html.exec(src))) { src = src.substring(cap[0].length); this.tokens.push({ type: this.options.sanitize ? "paragraph" : "html", pre: !this.options.sanitizer && (cap[1] === "pre" || cap[1] === "script" || cap[1] === "style"), text: cap[0] }); continue; } if (!bq && top && (cap = this.rules.def.exec(src))) { src = src.substring(cap[0].length); this.tokens.links[cap[1].toLowerCase()] = { href: cap[2], title: cap[3] }; continue; } if (top && (cap = this.rules.table.exec(src))) { src = src.substring(cap[0].length); item = { type: "table", header: cap[1].replace(/^ *| *\| *$/g, "").split(/ *\| */), align: cap[2].replace(/^ *|\| *$/g, "").split(/ *\| */), cells: cap[3].replace(/(?: *\| *)?\n$/, "").split("\n") }; for (i = 0; i < item.align.length; i++) { if (/^ *-+: *$/.test(item.align[i])) { item.align[i] = "right"; } else if (/^ *:-+: *$/.test(item.align[i])) { item.align[i] = "center"; } else if (/^ *:-+ *$/.test(item.align[i])) { item.align[i] = "left"; } else { item.align[i] = null; } } for (i = 0; i < item.cells.length; i++) { item.cells[i] = item.cells[i] .replace(/^ *\| *| *\| *$/g, "") .split(/ *\| */); } this.tokens.push(item); continue; } if (top && (cap = this.rules.paragraph.exec(src))) { src = src.substring(cap[0].length); this.tokens.push({ type: "paragraph", text: cap[1].charAt(cap[1].length - 1) === "\n" ? cap[1].slice(0, -1) : cap[1] }); continue; } if ((cap = this.rules.text.exec(src))) { src = src.substring(cap[0].length); this.tokens.push({ type: "text", text: cap[0] }); continue; } if (src) { throw new Error("Infinite loop on byte: " + src.charCodeAt(0)); } } return this.tokens; }; var inline = { escape: /^\\([\\`*{}\[\]()#+\-.!_>])/, autolink: /^<([^ >]+(@|:\/)[^ >]+)>/, url: noop, tag: /^|^<\/?\w+(?:"[^"]*"|'[^']*'|[^'">])*?>/, link: /^!?\[(inside)\]\(href\)/, reflink: /^!?\[(inside)\]\s*\[([^\]]*)\]/, nolink: /^!?\[((?:\[[^\]]*\]|[^\[\]])*)\]/, strong: /^__([\s\S]+?)__(?!_)|^\*\*([\s\S]+?)\*\*(?!\*)/, em: /^\b_((?:[^_]|__)+?)_\b|^\*((?:\*\*|[\s\S])+?)\*(?!\*)/, code: /^(`+)\s*([\s\S]*?[^`])\s*\1(?!`)/, br: /^ {2,}\n(?!\s*$)/, del: noop, text: /^[\s\S]+?(?=[\\?(?:\s+['"]([\s\S]*?)['"])?\s*/; inline.link = replace(inline.link)("inside", inline._inside)( "href", inline._href )(); inline.reflink = replace(inline.reflink)("inside", inline._inside)(); inline.normal = merge({}, inline); inline.pedantic = merge({}, inline.normal, { strong: /^__(?=\S)([\s\S]*?\S)__(?!_)|^\*\*(?=\S)([\s\S]*?\S)\*\*(?!\*)/, em: /^_(?=\S)([\s\S]*?\S)_(?!_)|^\*(?=\S)([\s\S]*?\S)\*(?!\*)/ }); inline.gfm = merge({}, inline.normal, { escape: replace(inline.escape)("])", "~|])")(), url: /^(https?:\/\/[^\s<]+[^<.,:;"')\]\s])/, del: /^~~(?=\S)([\s\S]*?\S)~~/, text: replace(inline.text)("]|", "~]|")("|", "|https?://|")() }); inline.breaks = merge({}, inline.gfm, { br: replace(inline.br)("{2,}", "*")(), text: replace(inline.gfm.text)("{2,}", "*")() }); function InlineLexer(links, options) { this.options = options || marked.defaults; this.links = links; this.rules = inline.normal; this.renderer = this.options.renderer || new Renderer(); this.renderer.options = this.options; if (!this.links) { throw new Error("Tokens array requires a `links` property."); } if (this.options.gfm) { if (this.options.breaks) { this.rules = inline.breaks; } else { this.rules = inline.gfm; } } else if (this.options.pedantic) { this.rules = inline.pedantic; } } InlineLexer.rules = inline; InlineLexer.output = function(src, links, options) { var inline = new InlineLexer(links, options); return inline.output(src); }; InlineLexer.prototype.output = function(src) { var out = "", link, text, href, cap; while (src) { if ((cap = this.rules.escape.exec(src))) { src = src.substring(cap[0].length); out += cap[1]; continue; } if ((cap = this.rules.autolink.exec(src))) { src = src.substring(cap[0].length); if (cap[2] === "@") { text = cap[1].charAt(6) === ":" ? this.mangle(cap[1].substring(7)) : this.mangle(cap[1]); href = this.mangle("mailto:") + text; } else { text = escape(cap[1]); href = text; } out += this.renderer.link(href, null, text); continue; } if (!this.inLink && (cap = this.rules.url.exec(src))) { src = src.substring(cap[0].length); text = escape(cap[1]); href = text; out += this.renderer.link(href, null, text); continue; } if ((cap = this.rules.tag.exec(src))) { if (!this.inLink && /^/i.test(cap[0])) { this.inLink = false; } src = src.substring(cap[0].length); out += this.options.sanitize ? this.options.sanitizer ? this.options.sanitizer(cap[0]) : escape(cap[0]) : cap[0]; continue; } if ((cap = this.rules.link.exec(src))) { src = src.substring(cap[0].length); this.inLink = true; out += this.outputLink(cap, { href: cap[2], title: cap[3] }); this.inLink = false; continue; } if ( (cap = this.rules.reflink.exec(src)) || (cap = this.rules.nolink.exec(src)) ) { src = src.substring(cap[0].length); link = (cap[2] || cap[1]).replace(/\s+/g, " "); link = this.links[link.toLowerCase()]; if (!link || !link.href) { out += cap[0].charAt(0); src = cap[0].substring(1) + src; continue; } this.inLink = true; out += this.outputLink(cap, link); this.inLink = false; continue; } if ((cap = this.rules.strong.exec(src))) { src = src.substring(cap[0].length); out += this.renderer.strong(this.output(cap[2] || cap[1])); continue; } if ((cap = this.rules.em.exec(src))) { src = src.substring(cap[0].length); out += this.renderer.em(this.output(cap[2] || cap[1])); continue; } if ((cap = this.rules.code.exec(src))) { src = src.substring(cap[0].length); out += this.renderer.codespan(escape(cap[2], true)); continue; } if ((cap = this.rules.br.exec(src))) { src = src.substring(cap[0].length); out += this.renderer.br(); continue; } if ((cap = this.rules.del.exec(src))) { src = src.substring(cap[0].length); out += this.renderer.del(this.output(cap[1])); continue; } if ((cap = this.rules.text.exec(src))) { src = src.substring(cap[0].length); out += this.renderer.text(escape(this.smartypants(cap[0]))); continue; } if (src) { throw new Error("Infinite loop on byte: " + src.charCodeAt(0)); } } return out; }; InlineLexer.prototype.outputLink = function(cap, link) { var href = escape(link.href), title = link.title ? escape(link.title) : null; return cap[0].charAt(0) !== "!" ? this.renderer.link(href, title, this.output(cap[1])) : this.renderer.image(href, title, escape(cap[1])); }; InlineLexer.prototype.smartypants = function(text) { if (!this.options.smartypants) return text; return text .replace(/---/g, "—") .replace(/--/g, "–") .replace(/(^|[-\u2014/(\[{"\s])'/g, "$1‘") .replace(/'/g, "’") .replace(/(^|[-\u2014/(\[{\u2018\s])"/g, "$1“") .replace(/"/g, "”") .replace(/\.{3}/g, "…"); }; InlineLexer.prototype.mangle = function(text) { if (!this.options.mangle) return text; var out = "", l = text.length, i = 0, ch; for (; i < l; i++) { ch = text.charCodeAt(i); if (Math.random() > 0.5) { ch = "x" + ch.toString(16); } out += "&#" + ch + ";"; } return out; }; function Renderer(options) { this.options = options || {}; } Renderer.prototype.code = function(code, lang, escaped) { if (this.options.highlight) { var out = this.options.highlight(code, lang); if (out != null && out !== code) { escaped = true; code = out; } } if (!lang) { return ( "
" +
        (escaped ? code : escape(code, true)) +
        "\n
" ); } return ( '
' +
      (escaped ? code : escape(code, true)) +
      "\n
\n" ); }; Renderer.prototype.blockquote = function(quote) { return "
\n" + quote + "
\n"; }; Renderer.prototype.html = function(html) { return html; }; Renderer.prototype.heading = function(text, level, raw) { return ( "' + text + "\n" ); }; Renderer.prototype.hr = function() { return this.options.xhtml ? "
\n" : "
\n"; }; Renderer.prototype.list = function(body, ordered) { var type = ordered ? "ol" : "ul"; return "<" + type + ">\n" + body + "\n"; }; Renderer.prototype.listitem = function(text) { return "
  • " + text + "
  • \n"; }; Renderer.prototype.paragraph = function(text) { return "

    " + text + "

    \n"; }; Renderer.prototype.table = function(header, body) { return ( "\n" + "\n" + header + "\n" + "\n" + body + "\n" + "
    \n" ); }; Renderer.prototype.tablerow = function(content) { return "\n" + content + "\n"; }; Renderer.prototype.tablecell = function(content, flags) { var type = flags.header ? "th" : "td"; var tag = flags.align ? "<" + type + ' style="text-align:' + flags.align + '">' : "<" + type + ">"; return tag + content + "\n"; }; Renderer.prototype.strong = function(text) { return "" + text + ""; }; Renderer.prototype.em = function(text) { return "" + text + ""; }; Renderer.prototype.codespan = function(text) { return "" + text + ""; }; Renderer.prototype.br = function() { return this.options.xhtml ? "
    " : "
    "; }; Renderer.prototype.del = function(text) { return "" + text + ""; }; Renderer.prototype.link = function(href, title, text) { if (this.options.sanitize) { try { var prot = decodeURIComponent(unescape(href)) .replace(/[^\w:]/g, "") .toLowerCase(); } catch (e) { return ""; } if ( prot.indexOf("javascript:") === 0 || prot.indexOf("vbscript:") === 0 ) { return ""; } } var out = '
    "; return out; }; Renderer.prototype.image = function(href, title, text) { var out = '' + text + '" : ">"; return out; }; Renderer.prototype.text = function(text) { return text; }; function Parser(options) { this.tokens = []; this.token = null; this.options = options || marked.defaults; this.options.renderer = this.options.renderer || new Renderer(); this.renderer = this.options.renderer; this.renderer.options = this.options; } Parser.parse = function(src, options, renderer) { var parser = new Parser(options, renderer); return parser.parse(src); }; Parser.prototype.parse = function(src) { this.inline = new InlineLexer(src.links, this.options, this.renderer); this.tokens = src.reverse(); var out = ""; while (this.next()) { out += this.tok(); } return out; }; Parser.prototype.next = function() { return (this.token = this.tokens.pop()); }; Parser.prototype.peek = function() { return this.tokens[this.tokens.length - 1] || 0; }; Parser.prototype.parseText = function() { var body = this.token.text; while (this.peek().type === "text") { body += "\n" + this.next().text; } return this.inline.output(body); }; Parser.prototype.tok = function() { switch (this.token.type) { case "space": { return ""; } case "hr": { return this.renderer.hr(); } case "heading": { return this.renderer.heading( this.inline.output(this.token.text), this.token.depth, this.token.text ); } case "code": { return this.renderer.code( this.token.text, this.token.lang, this.token.escaped ); } case "table": { var header = "", body = "", i, row, cell, flags, j; cell = ""; for (i = 0; i < this.token.header.length; i++) { flags = { header: true, align: this.token.align[i] }; cell += this.renderer.tablecell( this.inline.output(this.token.header[i]), { header: true, align: this.token.align[i] } ); } header += this.renderer.tablerow(cell); for (i = 0; i < this.token.cells.length; i++) { row = this.token.cells[i]; cell = ""; for (j = 0; j < row.length; j++) { cell += this.renderer.tablecell(this.inline.output(row[j]), { header: false, align: this.token.align[j] }); } body += this.renderer.tablerow(cell); } return this.renderer.table(header, body); } case "blockquote_start": { var body = ""; while (this.next().type !== "blockquote_end") { body += this.tok(); } return this.renderer.blockquote(body); } case "list_start": { var body = "", ordered = this.token.ordered; while (this.next().type !== "list_end") { body += this.tok(); } return this.renderer.list(body, ordered); } case "list_item_start": { var body = ""; while (this.next().type !== "list_item_end") { body += this.token.type === "text" ? this.parseText() : this.tok(); } return this.renderer.listitem(body); } case "loose_item_start": { var body = ""; while (this.next().type !== "list_item_end") { body += this.tok(); } return this.renderer.listitem(body); } case "html": { var html = !this.token.pre && !this.options.pedantic ? this.inline.output(this.token.text) : this.token.text; return this.renderer.html(html); } case "paragraph": { return this.renderer.paragraph(this.inline.output(this.token.text)); } case "text": { return this.renderer.paragraph(this.parseText()); } } }; function escape(html, encode) { return html .replace(!encode ? /&(?!#?\w+;)/g : /&/g, "&") .replace(//g, ">") .replace(/"/g, """) .replace(/'/g, "'"); } function unescape(html) { return html.replace(/&([#\w]+);/g, function(_, n) { n = n.toLowerCase(); if (n === "colon") return ":"; if (n.charAt(0) === "#") { return n.charAt(1) === "x" ? String.fromCharCode(parseInt(n.substring(2), 16)) : String.fromCharCode(+n.substring(1)); } return ""; }); } function replace(regex, opt) { regex = regex.source; opt = opt || ""; return function self(name, val) { if (!name) return new RegExp(regex, opt); val = val.source || val; val = val.replace(/(^|[^\[])\^/g, "$1"); regex = regex.replace(name, val); return self; }; } function noop() {} noop.exec = noop; function merge(obj) { var i = 1, target, key; for (; i < arguments.length; i++) { target = arguments[i]; for (key in target) { if (Object.prototype.hasOwnProperty.call(target, key)) { obj[key] = target[key]; } } } return obj; } function marked(src, opt, callback) { if (callback || typeof opt === "function") { if (!callback) { callback = opt; opt = null; } opt = merge({}, marked.defaults, opt || {}); var highlight = opt.highlight, tokens, pending, i = 0; try { tokens = Lexer.lex(src, opt); } catch (e) { return callback(e); } pending = tokens.length; var done = function(err) { if (err) { opt.highlight = highlight; return callback(err); } var out; try { out = Parser.parse(tokens, opt); } catch (e) { err = e; } opt.highlight = highlight; return err ? callback(err) : callback(null, out); }; if (!highlight || highlight.length < 3) { return done(); } delete opt.highlight; if (!pending) return done(); for (; i < tokens.length; i++) { (function(token) { if (token.type !== "code") { return --pending || done(); } return highlight(token.text, token.lang, function(err, code) { if (err) return done(err); if (code == null || code === token.text) { return --pending || done(); } token.text = code; token.escaped = true; --pending || done(); }); })(tokens[i]); } return; } try { if (opt) opt = merge({}, marked.defaults, opt); return Parser.parse(Lexer.lex(src, opt), opt); } catch (e) { e.message += "\nPlease report this to https://github.com/chjj/marked."; if ((opt || marked.defaults).silent) { return ( "

    An error occured:

    " +
              escape(e.message + "", true) +
              "
    " ); } throw e; } } marked.options = marked.setOptions = function(opt) { merge(marked.defaults, opt); return marked; }; marked.defaults = { gfm: true, tables: true, breaks: false, pedantic: false, sanitize: false, sanitizer: null, mangle: true, smartLists: false, silent: false, highlight: null, langPrefix: "lang-", smartypants: false, headerPrefix: "", renderer: new Renderer(), xhtml: false }; marked.Parser = Parser; marked.parser = Parser.parse; marked.Renderer = Renderer; marked.Lexer = Lexer; marked.lexer = Lexer.lex; marked.InlineLexer = InlineLexer; marked.inlineLexer = InlineLexer.output; marked.parse = marked; if (typeof module !== "undefined" && typeof exports === "object") { module.exports = marked; } else if (typeof define === "function" && define.amd) { define(function() { return marked; }); } else { this.marked = marked; } }.call( (function() { return this || (typeof window !== "undefined" ? window : global); })() ));