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node_modules/marked/lib/marked.js
Maintainability
55.69
Lines of code
1260
Difficulty
127.12
Estimated Errors
13.70
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/** * marked - a markdown parser * Copyright (c) 2011-2014, Christopher Jeffrey. (MIT Licensed) * https://github.com/chjj/marked */ ;(function() { /** * Block-Level Grammar */ 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|closed|closing) *(?:\n{2,}|\s*$)/, def: /^ *\[([^\]]+)\]: *<?([^\s>]+)>?(?: +["(]([^\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', /<!--[\s\S]*?-->/) ('closed', /<(tag)[\s\S]+?<\/\1>/) ('closing', /<tag(?:"[^"]*"|'[^']*'|[^'">])*?>/) (/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) (); /** * Normal Block Grammar */ block.normal = merge({}, block); /** * GFM Block Grammar */ block.gfm = merge({}, block.normal, { fences: /^ *(`{3,}|~{3,}) *(\S+)? *\n([\s\S]+?)\s*\1 *(?:\n+|$)/, paragraph: /^/ }); block.gfm.paragraph = replace(block.paragraph) ('(?!', '(?!' + block.gfm.fences.source.replace('\\1', '\\2') + '|' + block.list.source.replace('\\1', '\\3') + '|') (); /** * GFM + Tables Block Grammar */ block.tables = merge({}, block.gfm, { nptable: /^ *(\S.*\|.*)\n *([-:]+ *\|[-| :]*)\n((?:.*\|.*(?:\n|$))*)\n*/, table: /^ *\|(.+)\n *\|( *[-:]+[-| :]*)\n((?: *\|.*(?:\n|$))*)\n*/ }); /** * Block Lexer */ function Lexer(options) { this.tokens = []; this.tokens.links = {}; this.options = options || marked.defaults; this.rules = block.normal; if (this.options.gfm) { if (this.options.tables) { this.rules = block.tables; } else { this.rules = block.gfm; } } } /** * Expose Block Rules */ Lexer.rules = block; /** * Static Lex Method */ Lexer.lex = function(src, options) { var lexer = new Lexer(options); return lexer.lex(src); }; /** * Preprocessing */ Lexer.prototype.lex = function(src) { src = src .replace(/\r\n|\r/g, '\n') .replace(/\t/g, ' ') .replace(/\u00a0/g, ' ') .replace(/\u2424/g, '\n'); return this.token(src, true); }; /** * Lexing */ Lexer.prototype.token = function(src, top, bq) { var src = src.replace(/^ +$/gm, '') , next , loose , cap , bull , b , item , space , i , l; while (src) { // newline if (cap = this.rules.newline.exec(src)) { src = src.substring(cap[0].length); if (cap[0].length > 1) { this.tokens.push({ type: 'space' }); } } // code 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+$/, '') : cap }); continue; } // fences (gfm) if (cap = this.rules.fences.exec(src)) { src = src.substring(cap[0].length); this.tokens.push({ type: 'code', lang: cap[2], text: cap[3] }); continue; } // heading if (cap = this.rules.heading.exec(src)) { src = src.substring(cap[0].length); this.tokens.push({ type: 'heading', depth: cap[1].length, text: cap[2] }); continue; } // table no leading pipe (gfm) if (top && (cap = this.rules.nptable.exec(src))) { src = src.substring(cap[0].length); item = { type: 'table', header: cap[1].replace(/^ *| *\| *$/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 (/^ *:-+ *$/.test(item.align[i])) { item.align[i] = 'left'; } else { item.align[i] = null; } } for (i = 0; i < item.cells.length; i++) { item.cells[i] = item.cells[i].split(/ *\| */); } this.tokens.push(item); continue; } // lheading if (cap = this.rules.lheading.exec(src)) { src = src.substring(cap[0].length); this.tokens.push({ type: 'heading', depth: cap[2] === '=' ? 1 : 2, text: cap[1] }); continue; } // hr if (cap = this.rules.hr.exec(src)) { src = src.substring(cap[0].length); this.tokens.push({ type: 'hr' }); continue; } // blockquote if (cap = this.rules.blockquote.exec(src)) { src = src.substring(cap[0].length); this.tokens.push({ type: 'blockquote_start' }); cap = cap[0].replace(/^ *> ?/gm, ''); // Pass `top` to keep the current // "toplevel" state. This is exactly // how markdown.pl works. this.token(cap, top, true); this.tokens.push({ type: 'blockquote_end' }); continue; } // list if (cap = this.rules.list.exec(src)) { src = src.substring(cap[0].length); bull = cap[2]; this.tokens.push({ type: 'list_start', ordered: bull.length > 1 }); // Get each top-level item. cap = cap[0].match(this.rules.item); next = false; l = cap.length; i = 0; for (; i < l; i++) { item = cap[i]; // Remove the list item's bullet // so it is seen as the next token. space = item.length; item = item.replace(/^ *([*+-]|\d+\.) +/, ''); // Outdent whatever the // list item contains. Hacky. if (~item.indexOf('\n ')) { space -= item.length; item = !this.options.pedantic ? item.replace(new RegExp('^ {1,' + space + '}', 'gm'), '') : item.replace(/^ {1,4}/gm, ''); } // Determine whether the next list item belongs here. // Backpedal if it does not belong in this list. if (this.options.smartLists && i !== l - 1) { b = block.bullet.exec(cap[i + 1])[0]; if (bull !== b && !(bull.length > 1 && b.length > 1)) { src = cap.slice(i + 1).join('\n') + src; i = l - 1; } } // Determine whether item is loose or not. // Use: /(^|\n)(?! )[^\n]+\n\n(?!\s*$)/ // for discount behavior. loose = next || /\n\n(?!\s*$)/.test(item); if (i !== l - 1) { next = item.charAt(item.length - 1) === '\n'; if (!loose) loose = next; } this.tokens.push({ type: loose ? 'loose_item_start' : 'list_item_start' }); // Recurse. this.token(item, false, bq); this.tokens.push({ type: 'list_item_end' }); } this.tokens.push({ type: 'list_end' }); continue; } // html if (cap = this.rules.html.exec(src)) { src = src.substring(cap[0].length); this.tokens.push({ type: this.options.sanitize ? 'paragraph' : 'html', pre: cap[1] === 'pre' || cap[1] === 'script' || cap[1] === 'style', text: cap[0] }); continue; } // def if ((!bq && top) && (cap = this.rules.def.exec(src))) { src = src.substring(cap[0].length); this.tokens.links[cap[1].toLowerCase()] = { href: cap[2], title: cap[3] }; continue; } // table (gfm) if (top && (cap = this.rules.table.exec(src))) { src = src.substring(cap[0].length); item = { type: 'table', header: cap[1].replace(/^ *| *\| *$/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; } // top-level paragraph 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; } // text if (cap = this.rules.text.exec(src)) { // Top-level should never reach here. 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; }; /** * Inline-Level Grammar */ var inline = { escape: /^\\([\\`*{}\[\]()#+\-.!_>])/, autolink: /^<([^ >]+(@|:\/)[^ >]+)>/, url: noop, tag: /^<!--[\s\S]*?-->|^<\/?\w+(?:"[^"]*"|'[^']*'|[^'">])*?>/, link: /^!?\[(inside)\]\(href\)/, reflink: /^!?\[(inside)\]\s*\[([^\]]*)\]/, nolink: /^!?\[((?:\[[^\]]*\]|[^\[\]])*)\]/, strong: /^__([\s\S]+?)__(?!_)|^\*\*([\s\S]+?)\*\*(?!\*)/, em: /^\b_((?:__|[\s\S])+?)_\b|^\*((?:\*\*|[\s\S])+?)\*(?!\*)/, code: /^(`+)\s*([\s\S]*?[^`])\s*\1(?!`)/, br: /^ {2,}\n(?!\s*$)/, del: noop, text: /^[\s\S]+?(?=[\\<!\[_*`]| {2,}\n|$)/ }; inline._inside = /(?:\[[^\]]*\]|[^\[\]]|\](?=[^\[]*\]))*/; inline._href = /\s*<?([\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) (); /** * Normal Inline Grammar */ inline.normal = merge({}, inline); /** * Pedantic Inline Grammar */ inline.pedantic = merge({}, inline.normal, { strong: /^__(?=\S)([\s\S]*?\S)__(?!_)|^\*\*(?=\S)([\s\S]*?\S)\*\*(?!\*)/, em: /^_(?=\S)([\s\S]*?\S)_(?!_)|^\*(?=\S)([\s\S]*?\S)\*(?!\*)/ }); /** * GFM Inline Grammar */ inline.gfm = merge({}, inline.normal, { escape: replace(inline.escape)('])', '~|])')(), url: /^(https?:\/\/[^\s<]+[^<.,:;"')\]\s])/, del: /^~~(?=\S)([\s\S]*?\S)~~/, text: replace(inline.text) (']|', '~]|') ('|', '|https?://|') () }); /** * GFM + Line Breaks Inline Grammar */ inline.breaks = merge({}, inline.gfm, { br: replace(inline.br)('{2,}', '*')(), text: replace(inline.gfm.text)('{2,}', '*')() }); /** * Inline Lexer & Compiler */ 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; } } /** * Expose Inline Rules */ InlineLexer.rules = inline; /** * Static Lexing/Compiling Method */ InlineLexer.output = function(src, links, options) { var inline = new InlineLexer(links, options); return inline.output(src); }; /** * Lexing/Compiling */ InlineLexer.prototype.output = function(src) { var out = '' , link , text , href , cap; while (src) { // escape if (cap = this.rules.escape.exec(src)) { src = src.substring(cap[0].length); out += cap[1]; continue; } // autolink 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; } // url (gfm) 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; } // tag if (cap = this.rules.tag.exec(src)) { if (!this.inLink && /^<a /i.test(cap[0])) { this.inLink = true; } else if (this.inLink && /^<\/a>/i.test(cap[0])) { this.inLink = false; } src = src.substring(cap[0].length); out += this.options.sanitize ? escape(cap[0]) : cap[0]; continue; } // link 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; } // reflink, nolink 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; } // strong if (cap = this.rules.strong.exec(src)) { src = src.substring(cap[0].length); out += this.renderer.strong(this.output(cap[2] || cap[1])); continue; } // em if (cap = this.rules.em.exec(src)) { src = src.substring(cap[0].length); out += this.renderer.em(this.output(cap[2] || cap[1])); continue; } // code if (cap = this.rules.code.exec(src)) { src = src.substring(cap[0].length); out += this.renderer.codespan(escape(cap[2], true)); continue; } // br if (cap = this.rules.br.exec(src)) { src = src.substring(cap[0].length); out += this.renderer.br(); continue; } // del (gfm) if (cap = this.rules.del.exec(src)) { src = src.substring(cap[0].length); out += this.renderer.del(this.output(cap[1])); continue; } // text if (cap = this.rules.text.exec(src)) { src = src.substring(cap[0].length); out += escape(this.smartypants(cap[0])); continue; } if (src) { throw new Error('Infinite loop on byte: ' + src.charCodeAt(0)); } } return out; }; /** * Compile Link */ 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])); }; /** * Smartypants Transformations */ InlineLexer.prototype.smartypants = function(text) { if (!this.options.smartypants) return text; return text // em-dashes .replace(/--/g, '\u2014') // opening singles .replace(/(^|[-\u2014/(\[{"\s])'/g, '$1\u2018') // closing singles & apostrophes .replace(/'/g, '\u2019') // opening doubles .replace(/(^|[-\u2014/(\[{\u2018\s])"/g, '$1\u201c') // closing doubles .replace(/"/g, '\u201d') // ellipses .replace(/\.{3}/g, '\u2026'); }; /** * Mangle Links */ InlineLexer.prototype.mangle = function(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; }; /** * Renderer */ 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 '<pre><code>' + (escaped ? code : escape(code, true)) + '\n</code></pre>'; } return '<pre><code class="' + this.options.langPrefix + escape(lang, true) + '">' + (escaped ? code : escape(code, true)) + '\n</code></pre>\n'; }; Renderer.prototype.blockquote = function(quote) { return '<blockquote>\n' + quote + '</blockquote>\n'; }; Renderer.prototype.html = function(html) { return html; }; Renderer.prototype.heading = function(text, level, raw) { return '<h' + level + ' id="' + this.options.headerPrefix + raw.toLowerCase().replace(/[^\w]+/g, '-') + '">' + text + '</h' + level + '>\n'; }; Renderer.prototype.hr = function() { return this.options.xhtml ? '<hr/>\n' : '<hr>\n'; }; Renderer.prototype.list = function(body, ordered) { var type = ordered ? 'ol' : 'ul'; return '<' + type + '>\n' + body + '</' + type + '>\n'; }; Renderer.prototype.listitem = function(text) { return '<li>' + text + '</li>\n'; }; Renderer.prototype.paragraph = function(text) { return '<p>' + text + '</p>\n'; }; Renderer.prototype.table = function(header, body) { return '<table>\n' + '<thead>\n' + header + '</thead>\n' + '<tbody>\n' + body + '</tbody>\n' + '</table>\n'; }; Renderer.prototype.tablerow = function(content) { return '<tr>\n' + content + '</tr>\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 + '</' + type + '>\n'; }; // span level renderer Renderer.prototype.strong = function(text) { return '<strong>' + text + '</strong>'; }; Renderer.prototype.em = function(text) { return '<em>' + text + '</em>'; }; Renderer.prototype.codespan = function(text) { return '<code>' + text + '</code>'; }; Renderer.prototype.br = function() { return this.options.xhtml ? '<br/>' : '<br>'; }; Renderer.prototype.del = function(text) { return '<del>' + text + '</del>'; }; 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) { return ''; } } var out = '<a href="' + href + '"'; if (title) { out += ' title="' + title + '"'; } out += '>' + text + '</a>'; return out; }; Renderer.prototype.image = function(href, title, text) { var out = '<img src="' + href + '" alt="' + text + '"'; if (title) { out += ' title="' + title + '"'; } out += this.options.xhtml ? '/>' : '>'; return out; }; /** * Parsing & Compiling */ 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; } /** * Static Parse Method */ Parser.parse = function(src, options, renderer) { var parser = new Parser(options, renderer); return parser.parse(src); }; /** * Parse Loop */ 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; }; /** * Next Token */ Parser.prototype.next = function() { return this.token = this.tokens.pop(); }; /** * Preview Next Token */ Parser.prototype.peek = function() { return this.tokens[this.tokens.length - 1] || 0; }; /** * Parse Text Tokens */ Parser.prototype.parseText = function() { var body = this.token.text; while (this.peek().type === 'text') { body += '\n' + this.next().text; } return this.inline.output(body); }; /** * Parse Current Token */ 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; // header 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()); } } }; /** * Helpers */ function escape(html, encode) { return html .replace(!encode ? /&(?!#?\w+;)/g : /&/g, '&') .replace(/</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; } /** * Marked */ 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() { var out, err; 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 (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 '<p>An error occured:</p><pre>' + escape(e.message + '', true) + '</pre>'; } throw e; } } /** * Options */ marked.options = marked.setOptions = function(opt) { merge(marked.defaults, opt); return marked; }; marked.defaults = { gfm: true, tables: true, breaks: false, pedantic: false, sanitize: false, smartLists: false, silent: false, highlight: null, langPrefix: 'lang-', smartypants: false, headerPrefix: '', renderer: new Renderer, xhtml: false }; /** * Expose */ 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 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); }());