marked.js Example File
webenginewidgets/markdowneditor/resources/3rdparty/marked.js/** * marked - a markdown parser * Copyright (c) 2011-2014, Christopher Jeffrey. (MIT Licensed) * https://github.com/markedjs/marked */ ;(function(root) { 'use strict'; /** * Block-Level Grammar */ var block = { newline: /^\n+/, code: /^( {4}[^\n]+\n*)+/, fences: noop, hr: /^ {0,3}((?:- *){3,}|(?:_ *){3,}|(?:\* *){3,})(?:\n+|$)/, heading: /^ *(#{1,6}) *([^\n]+?) *(?:#+ *)?(?:\n+|$)/, nptable: noop, blockquote: /^( {0,3}> ?(paragraph|[^\n]*)(?:\n|$))+/, list: /^( *)(bull) [\s\S]+?(?:hr|def|\n{2,}(?! )(?!\1bull )\n*|\s*$)/, html: '^ {0,3}(?:' // optional indentation + '<(script|pre|style)[\\s>][\\s\\S]*?(?:</\\1>[^\\n]*\\n+|$)' // (1) + '|comment[^\\n]*(\\n+|$)' // (2) + '|<\\?[\\s\\S]*?\\?>\\n*' // (3) + '|<![A-Z][\\s\\S]*?>\\n*' // (4) + '|<!\\[CDATA\\[[\\s\\S]*?\\]\\]>\\n*' // (5) + '|</?(tag)(?: +|\\n|/?>)[\\s\\S]*?(?:\\n{2,}|$)' // (6) + '|<(?!script|pre|style)([a-z][\\w-]*)(?:attribute)*? */?>(?=\\h*\\n)[\\s\\S]*?(?:\\n{2,}|$)' // (7) open tag + '|</(?!script|pre|style)[a-z][\\w-]*\\s*>(?=\\h*\\n)[\\s\\S]*?(?:\\n{2,}|$)' // (7) closing tag + ')', def: /^ {0,3}\[(label)\]: *\n? *<?([^\s>]+)>?(?:(?: +\n? *| *\n *)(title))? *(?:\n+|$)/, table: noop, lheading: /^([^\n]+)\n *(=|-){2,} *(?:\n+|$)/, paragraph: /^([^\n]+(?:\n(?!hr|heading|lheading| {0,3}>|<\/?(?:tag)(?: +|\n|\/?>)|<(?:script|pre|style|!--))[^\n]+)*)/, text: /^[^\n]+/ }; block._label = /(?!\s*\])(?:\\[\[\]]|[^\[\]])+/; block._title = /(?:"(?:\\"?|[^"\\])*"|'[^'\n]*(?:\n[^'\n]+)*\n?'|\([^()]*\))/; block.def = edit(block.def) .replace('label', block._label) .replace('title', block._title) .getRegex(); block.bullet = /(?:[*+-]|\d+\.)/; block.item = /^( *)(bull) [^\n]*(?:\n(?!\1bull )[^\n]*)*/; block.item = edit(block.item, 'gm') .replace(/bull/g, block.bullet) .getRegex(); block.list = edit(block.list) .replace(/bull/g, block.bullet) .replace('hr', '\\n+(?=\\1?(?:(?:- *){3,}|(?:_ *){3,}|(?:\\* *){3,})(?:\\n+|$))') .replace('def', '\\n+(?=' + block.def.source + ')') .getRegex(); block._tag = 'address|article|aside|base|basefont|blockquote|body|caption' + '|center|col|colgroup|dd|details|dialog|dir|div|dl|dt|fieldset|figcaption' + '|figure|footer|form|frame|frameset|h[1-6]|head|header|hr|html|iframe' + '|legend|li|link|main|menu|menuitem|meta|nav|noframes|ol|optgroup|option' + '|p|param|section|source|summary|table|tbody|td|tfoot|th|thead|title|tr' + '|track|ul'; block._comment = /<!--(?!-?>)[\s\S]*?-->/; block.html = edit(block.html, 'i') .replace('comment', block._comment) .replace('tag', block._tag) .replace('attribute', / +[a-zA-Z:_][\w.:-]*(?: *= *"[^"\n]*"| *= *'[^'\n]*'| *= *[^\s"'=<>`]+)?/) .getRegex(); block.paragraph = edit(block.paragraph) .replace('hr', block.hr) .replace('heading', block.heading) .replace('lheading', block.lheading) .replace('tag', block._tag) // pars can be interrupted by type (6) html blocks .getRegex(); block.blockquote = edit(block.blockquote) .replace('paragraph', block.paragraph) .getRegex(); /** * Normal Block Grammar */ block.normal = merge({}, block); /** * GFM Block Grammar */ block.gfm = merge({}, block.normal, { fences: /^ *(`{3,}|~{3,})[ \.]*(\S+)? *\n([\s\S]*?)\n? *\1 *(?:\n+|$)/, paragraph: /^/, heading: /^ *(#{1,6}) +([^\n]+?) *#* *(?:\n+|$)/ }); block.gfm.paragraph = edit(block.paragraph) .replace('(?!', '(?!' + block.gfm.fences.source.replace('\\1', '\\2') + '|' + block.list.source.replace('\\1', '\\3') + '|') .getRegex(); /** * GFM + Tables Block Grammar */ block.tables = merge({}, block.gfm, { nptable: /^ *([^|\n ].*\|.*)\n *([-:]+ *\|[-| :]*)(?:\n((?:.*[^>\n ].*(?:\n|$))*)\n*|$)/, table: /^ *\|(.+)\n *\|?( *[-:]+[-| :]*)(?:\n((?: *[^>\n ].*(?:\n|$))*)\n*|$)/ }); /** * Pedantic grammar */ block.pedantic = merge({}, block.normal, { html: edit( '^ *(?:comment *(?:\\n|\\s*$)' + '|<(tag)[\\s\\S]+?</\\1> *(?:\\n{2,}|\\s*$)' // closed tag + '|<tag(?:"[^"]*"|\'[^\']*\'|\\s[^\'"/>\\s]*)*?/?> *(?:\\n{2,}|\\s*$))') .replace('comment', block._comment) .replace(/tag/g, '(?!(?:' + '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') .getRegex(), def: /^ *\[([^\]]+)\]: *<?([^\s>]+)>?(?: +(["(][^\n]+[")]))? *(?:\n+|$)/ }); /** * Block Lexer */ function Lexer(options) { this.tokens = []; this.tokens.links = {}; this.options = options || marked.defaults; this.rules = block.normal; if (this.options.pedantic) { this.rules = block.pedantic; } else if (this.options.gfm) { if (this.options.tables) { this.rules = block.tables; } else { this.rules = block.gfm; } } } /** * Expose Block Rules */ Lexer.rules = block; /** * Static Lex Method */ Lexer.lex = function(src, options) { var lexer = new Lexer(options); return lexer.lex(src); }; /** * Preprocessing */ Lexer.prototype.lex = function(src) { src = src .replace(/\r\n|\r/g, '\n') .replace(/\t/g, ' ') .replace(/\u00a0/g, ' ') .replace(/\u2424/g, '\n'); return this.token(src, true); }; /** * Lexing */ Lexer.prototype.token = function(src, top) { src = src.replace(/^ +$/gm, ''); var next, loose, cap, bull, b, item, space, i, tag, l, isordered, istask, ischecked; 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+$/, '') : cap }); continue; } // fences (gfm) if (cap = this.rules.fences.exec(src)) { src = src.substring(cap[0].length); this.tokens.push({ type: 'code', lang: cap[2], text: cap[3] || '' }); continue; } // heading if (cap = this.rules.heading.exec(src)) { src = src.substring(cap[0].length); this.tokens.push({ type: 'heading', depth: cap[1].length, text: cap[2] }); continue; } // table no leading pipe (gfm) if (top && (cap = this.rules.nptable.exec(src))) { item = { type: 'table', header: splitCells(cap[1].replace(/^ *| *\| *$/g, '')), align: cap[2].replace(/^ *|\| *$/g, '').split(/ *\| */), cells: cap[3] ? cap[3].replace(/\n$/, '').split('\n') : [] }; if (item.header.length === item.align.length) { src = src.substring(cap[0].length); 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 (/^ *:-+ *$/.test(item.align[i])) { item.align[i] = 'left'; } else { item.align[i] = null; } } for (i = 0; i < item.cells.length; i++) { item.cells[i] = splitCells(item.cells[i], item.header.length); } this.tokens.push(item); continue; } } // hr if (cap = this.rules.hr.exec(src)) { src = src.substring(cap[0].length); this.tokens.push({ type: 'hr' }); continue; } // blockquote if (cap = this.rules.blockquote.exec(src)) { src = src.substring(cap[0].length); this.tokens.push({ type: 'blockquote_start' }); cap = cap[0].replace(/^ *> ?/gm, ''); // Pass `top` to keep the current // "toplevel" state. This is exactly // how markdown.pl works. this.token(cap, top); this.tokens.push({ type: 'blockquote_end' }); continue; } // list if (cap = this.rules.list.exec(src)) { src = src.substring(cap[0].length); bull = cap[2]; isordered = bull.length > 1; this.tokens.push({ type: 'list_start', ordered: isordered, start: isordered ? +bull : '' }); // Get each top-level item. cap = cap[0].match(this.rules.item); next = false; l = cap.length; i = 0; for (; i < l; i++) { item = cap[i]; // Remove the list item's bullet // so it is seen as the next token. space = item.length; item = item.replace(/^ *([*+-]|\d+\.) +/, ''); // Outdent whatever the // list item contains. Hacky. if (~item.indexOf('\n ')) { space -= item.length; item = !this.options.pedantic ? item.replace(new RegExp('^ {1,' + space + '}', 'gm'), '') : item.replace(/^ {1,4}/gm, ''); } // Determine whether the next list item belongs here. // Backpedal if it does not belong in this list. if (this.options.smartLists && i !== l - 1) { b = block.bullet.exec(cap[i + 1])[0]; if (bull !== b && !(bull.length > 1 && b.length > 1)) { src = cap.slice(i + 1).join('\n') + src; i = l - 1; } } // Determine whether item is loose or not. // Use: /(^|\n)(?! )[^\n]+\n\n(?!\s*$)/ // 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; } // Check for task list items istask = /^\[[ xX]\] /.test(item); ischecked = undefined; if (istask) { ischecked = item[1] !== ' '; item = item.replace(/^\[[ xX]\] +/, ''); } this.tokens.push({ type: loose ? 'loose_item_start' : 'list_item_start', task: istask, checked: ischecked }); // Recurse. this.token(item, false); 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: !this.options.sanitizer && (cap[1] === 'pre' || cap[1] === 'script' || cap[1] === 'style'), text: cap[0] }); continue; } // def if (top && (cap = this.rules.def.exec(src))) { src = src.substring(cap[0].length); if (cap[3]) cap[3] = cap[3].substring(1, cap[3].length - 1); tag = cap[1].toLowerCase().replace(/\s+/g, ' '); if (!this.tokens.links[tag]) { this.tokens.links[tag] = { href: cap[2], title: cap[3] }; } continue; } // table (gfm) if (top && (cap = this.rules.table.exec(src))) { item = { type: 'table', header: splitCells(cap[1].replace(/^ *| *\| *$/g, '')), align: cap[2].replace(/^ *|\| *$/g, '').split(/ *\| */), cells: cap[3] ? cap[3].replace(/(?: *\| *)?\n$/, '').split('\n') : [] }; if (item.header.length === item.align.length) { src = src.substring(cap[0].length); for (i = 0; i < item.align.length; i++) { if (/^ *-+: *$/.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] = splitCells( item.cells[i].replace(/^ *\| *| *\| *$/g, ''), item.header.length); } this.tokens.push(item); continue; } } // lheading if (cap = this.rules.lheading.exec(src)) { src = src.substring(cap[0].length); this.tokens.push({ type: 'heading', depth: cap[2] === '=' ? 1 : 2, text: cap[1] }); continue; } // top-level paragraph if (top && (cap = this.rules.paragraph.exec(src))) { src = src.substring(cap[0].length); this.tokens.push({ type: 'paragraph', text: cap[1].charAt(cap[1].length - 1) === '\n' ? cap[1].slice(0, -1) : cap[1] }); continue; } // text if (cap = this.rules.text.exec(src)) { // Top-level should never reach here. src = src.substring(cap[0].length); this.tokens.push({ type: 'text', text: cap[0] }); continue; } if (src) { throw new Error('Infinite loop on byte: ' + src.charCodeAt(0)); } } return this.tokens; }; /** * Inline-Level Grammar */ var inline = { escape: /^\\([!"#$%&'()*+,\-./:;<=>?@\[\]\\^_`{|}~])/, autolink: /^<(scheme:[^\s\x00-\x1f<>]*|email)>/, url: noop, tag: '^comment' + '|^</[a-zA-Z][\\w:-]*\\s*>' // self-closing tag + '|^<[a-zA-Z][\\w-]*(?:attribute)*?\\s*/?>' // open tag + '|^<\\?[\\s\\S]*?\\?>' // processing instruction, e.g. <?php ?> + '|^<![a-zA-Z]+\\s[\\s\\S]*?>' // declaration, e.g. <!DOCTYPE html> + '|^<!\\[CDATA\\[[\\s\\S]*?\\]\\]>', // CDATA section link: /^!?\[(label)\]\(href(?:\s+(title))?\s*\)/, reflink: /^!?\[(label)\]\[(?!\s*\])((?:\\[\[\]]?|[^\[\]\\])+)\]/, nolink: /^!?\[(?!\s*\])((?:\[[^\[\]]*\]|\\[\[\]]|[^\[\]])*)\](?:\[\])?/, strong: /^__([^\s][\s\S]*?[^\s])__(?!_)|^\*\*([^\s][\s\S]*?[^\s])\*\*(?!\*)|^__([^\s])__(?!_)|^\*\*([^\s])\*\*(?!\*)/, em: /^_([^\s][\s\S]*?[^\s_])_(?!_)|^_([^\s_][\s\S]*?[^\s])_(?!_)|^\*([^\s][\s\S]*?[^\s*])\*(?!\*)|^\*([^\s*][\s\S]*?[^\s])\*(?!\*)|^_([^\s_])_(?!_)|^\*([^\s*])\*(?!\*)/, code: /^(`+)\s*([\s\S]*?[^`]?)\s*\1(?!`)/, br: /^ {2,}\n(?!\s*$)/, del: noop, text: /^[\s\S]+?(?=[\\<!\[`*]|\b_| {2,}\n|$)/ }; inline._escapes = /\\([!"#$%&'()*+,\-./:;<=>?@\[\]\\^_`{|}~])/g; inline._scheme = /[a-zA-Z][a-zA-Z0-9+.-]{1,31}/; inline._email = /[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+(@)[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)+(?![-_])/; inline.autolink = edit(inline.autolink) .replace('scheme', inline._scheme) .replace('email', inline._email) .getRegex(); inline._attribute = /\s+[a-zA-Z:_][\w.:-]*(?:\s*=\s*"[^"]*"|\s*=\s*'[^']*'|\s*=\s*[^\s"'=<>`]+)?/; inline.tag = edit(inline.tag) .replace('comment', block._comment) .replace('attribute', inline._attribute) .getRegex(); inline._label = /(?:\[[^\[\]]*\]|\\[\[\]]?|`[^`]*`|[^\[\]\\])*?/; inline._href = /\s*(<(?:\\[<>]?|[^\s<>\\])*>|(?:\\[()]?|\([^\s\x00-\x1f()\\]*\)|[^\s\x00-\x1f()\\])*?)/; inline._title = /"(?:\\"?|[^"\\])*"|'(?:\\'?|[^'\\])*'|\((?:\\\)?|[^)\\])*\)/; inline.link = edit(inline.link) .replace('label', inline._label) .replace('href', inline._href) .replace('title', inline._title) .getRegex(); inline.reflink = edit(inline.reflink) .replace('label', inline._label) .getRegex(); /** * 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)\*(?!\*)/, link: edit(/^!?\[(label)\]\((.*?)\)/) .replace('label', inline._label) .getRegex(), reflink: edit(/^!?\[(label)\]\s*\[([^\]]*)\]/) .replace('label', inline._label) .getRegex() }); /** * GFM Inline Grammar */ inline.gfm = merge({}, inline.normal, { escape: edit(inline.escape).replace('])', '~|])').getRegex(), url: edit(/^((?:ftp|https?):\/\/|www\.)(?:[a-zA-Z0-9\-]+\.?)+[^\s<]*|^email/) .replace('email', inline._email) .getRegex(), _backpedal: /(?:[^?!.,:;*_~()&]+|\([^)]*\)|&(?![a-zA-Z0-9]+;$)|[?!.,:;*_~)]+(?!$))+/, del: /^~~(?=\S)([\s\S]*?\S)~~/, text: edit(inline.text) .replace(']|', '~]|') .replace('|', '|https?://|ftp://|www\\.|[a-zA-Z0-9.!#$%&\'*+/=?^_`{\\|}~-]+@|') .getRegex() }); /** * GFM + Line Breaks Inline Grammar */ inline.breaks = merge({}, inline.gfm, { br: edit(inline.br).replace('{2,}', '*').getRegex(), text: edit(inline.gfm.text).replace('{2,}', '*').getRegex() }); /** * 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.pedantic) { this.rules = inline.pedantic; } else if (this.options.gfm) { if (this.options.breaks) { this.rules = inline.breaks; } else { this.rules = inline.gfm; } } } /** * 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, title, 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 = escape(this.mangle(cap[1])); href = '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))) { cap[0] = this.rules._backpedal.exec(cap[0])[0]; src = src.substring(cap[0].length); if (cap[2] === '@') { text = escape(cap[0]); href = 'mailto:' + text; } else { text = escape(cap[0]); if (cap[1] === 'www.') { href = 'http://' + text; } else { 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 ? this.options.sanitizer ? this.options.sanitizer(cap[0]) : escape(cap[0]) : cap[0] continue; } // link if (cap = this.rules.link.exec(src)) { src = src.substring(cap[0].length); this.inLink = true; href = cap[2]; if (this.options.pedantic) { link = /^([^'"]*[^\s])\s+(['"])(.*)\2/.exec(href); if (link) { href = link[1]; title = link[3]; } else { title = ''; } } else { title = cap[3] ? cap[3].slice(1, -1) : ''; } href = href.trim().replace(/^<([\s\S]*)>$/, '$1'); out += this.outputLink(cap, { href: InlineLexer.escapes(href), title: InlineLexer.escapes(title) }); 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[4] || cap[3] || 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[6] || cap[5] || cap[4] || cap[3] || 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].trim(), 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 += this.renderer.text(escape(this.smartypants(cap[0]))); continue; } if (src) { throw new Error('Infinite loop on byte: ' + src.charCodeAt(0)); } } return out; }; InlineLexer.escapes = function(text) { return text ? text.replace(InlineLexer.rules._escapes, '$1') : text; } /** * Compile Link */ InlineLexer.prototype.outputLink = function(cap, link) { var href = 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') // en-dashes .replace(/--/g, '\u2013') // 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) { 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; }; /** * Renderer */ function Renderer(options) { this.options = options || marked.defaults; } 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)) + '</code></pre>'; } return '<pre><code class="' + this.options.langPrefix + escape(lang, true) + '">' + (escaped ? code : escape(code, true)) + '</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) { if (this.options.headerIds) { return '<h' + level + ' id="' + this.options.headerPrefix + raw.toLowerCase().replace(/[^\w]+/g, '-') + '">' + text + '</h' + level + '>\n'; } // ignore IDs return '<h' + level + '>' + text + '</h' + level + '>\n'; }; Renderer.prototype.hr = function() { return this.options.xhtml ? '<hr/>\n' : '<hr>\n'; }; Renderer.prototype.list = function(body, ordered, start) { var type = ordered ? 'ol' : 'ul', startatt = (ordered && start !== 1) ? (' start="' + start + '"') : ''; return '<' + type + startatt + '>\n' + body + '</' + type + '>\n'; }; Renderer.prototype.listitem = function(text) { return '<li>' + text + '</li>\n'; }; Renderer.prototype.checkbox = function(checked) { return '<input ' + (checked ? 'checked="" ' : '') + 'disabled="" type="checkbox"' + (this.options.xhtml ? ' /' : '') + '> '; } Renderer.prototype.paragraph = function(text) { return '<p>' + text + '</p>\n'; }; Renderer.prototype.table = function(header, body) { if (body) body = '<tbody>' + body + '</tbody>'; return '<table>\n' + '<thead>\n' + header + '</thead>\n' + body + '</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 + ' 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 text; } if (prot.indexOf('javascript:') === 0 || prot.indexOf('vbscript:') === 0 || prot.indexOf('data:') === 0) { return text; } } if (this.options.baseUrl && !originIndependentUrl.test(href)) { href = resolveUrl(this.options.baseUrl, href); } try { href = encodeURI(href).replace(/%25/g, '%'); } catch (e) { return text; } var out = '<a href="' + escape(href) + '"'; if (title) { out += ' title="' + title + '"'; } out += '>' + text + '</a>'; return out; }; Renderer.prototype.image = function(href, title, text) { if (this.options.baseUrl && !originIndependentUrl.test(href)) { href = resolveUrl(this.options.baseUrl, href); } var out = '<img src="' + href + '" alt="' + text + '"'; if (title) { out += ' title="' + title + '"'; } out += this.options.xhtml ? '/>' : '>'; return out; }; Renderer.prototype.text = function(text) { return text; }; /** * TextRenderer * returns only the textual part of the token */ function TextRenderer() {} // no need for block level renderers TextRenderer.prototype.strong = TextRenderer.prototype.em = TextRenderer.prototype.codespan = TextRenderer.prototype.del = TextRenderer.prototype.text = function (text) { return text; } TextRenderer.prototype.link = TextRenderer.prototype.image = function(href, title, text) { return '' + text; } TextRenderer.prototype.br = function() { return ''; } /** * 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) { var parser = new Parser(options); return parser.parse(src); }; /** * Parse Loop */ Parser.prototype.parse = function(src) { this.inline = new InlineLexer(src.links, this.options); // use an InlineLexer with a TextRenderer to extract pure text this.inlineText = new InlineLexer( src.links, merge({}, this.options, {renderer: new TextRenderer()}) ); 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, unescape(this.inlineText.output(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, j; // header cell = ''; for (i = 0; i < this.token.header.length; 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': { body = ''; while (this.next().type !== 'blockquote_end') { body += this.tok(); } return this.renderer.blockquote(body); } case 'list_start': { body = ''; var ordered = this.token.ordered, start = this.token.start; while (this.next().type !== 'list_end') { body += this.tok(); } return this.renderer.list(body, ordered, start); } case 'list_item_start': { body = ''; if (this.token.task) { body += this.renderer.checkbox(this.token.checked); } 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': { body = ''; while (this.next().type !== 'list_item_end') { body += this.tok(); } return this.renderer.listitem(body); } case 'html': { // TODO parse inline content if parameter markdown=1 return this.renderer.html(this.token.text); } 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) { // explicitly match decimal, hex, and named HTML entities return html.replace(/&(#(?:\d+)|(?:#x[0-9A-Fa-f]+)|(?:\w+));?/ig, 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 edit(regex, opt) { regex = regex.source || regex; opt = opt || ''; return { replace: function(name, val) { val = val.source || val; val = val.replace(/(^|[^\[])\^/g, '$1'); regex = regex.replace(name, val); return this; }, getRegex: function() { return new RegExp(regex, opt); } }; } function resolveUrl(base, href) { if (!baseUrls[' ' + base]) { // we can ignore everything in base after the last slash of its path component, // but we might need to add _that_ // https://tools.ietf.org/html/rfc3986#section-3 if (/^[^:]+:\/*[^/]*$/.test(base)) { baseUrls[' ' + base] = base + '/'; } else { baseUrls[' ' + base] = base.replace(/[^/]*$/, ''); } } base = baseUrls[' ' + base]; if (href.slice(0, 2) === '//') { return base.replace(/:[\s\S]*/, ':') + href; } else if (href.charAt(0) === '/') { return base.replace(/(:\/*[^/]*)[\s\S]*/, '$1') + href; } else { return base + href; } } var baseUrls = {}; var originIndependentUrl = /^$|^[a-z][a-z0-9+.-]*:|^[?#]/i; 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 splitCells(tableRow, count) { var cells = tableRow.replace(/([^\\])\|/g, '$1 |').split(/ +\| */), i = 0; if (cells.length > count) { cells.splice(count); } else { while (cells.length < count) cells.push(''); } for (; i < cells.length; i++) { cells[i] = cells[i].replace(/\\\|/g, '|'); } return cells; } /** * Marked */ function marked(src, opt, callback) { // throw error in case of non string input if (typeof src === 'undefined' || src === null) { throw new Error('marked(): input parameter is undefined or null'); } if (typeof src !== 'string') { throw new Error('marked(): input parameter is of type ' + Object.prototype.toString.call(src) + ', string expected'); } 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/markedjs/marked.'; if ((opt || marked.defaults).silent) { return '<p>An error occurred:</p><pre>' + escape(e.message + '', true) + '</pre>'; } throw e; } } /** * Options */ marked.options = marked.setOptions = function(opt) { merge(marked.defaults, opt); return marked; }; marked.getDefaults = function () { return { baseUrl: null, breaks: false, gfm: true, headerIds: true, headerPrefix: '', highlight: null, langPrefix: 'language-', mangle: true, pedantic: false, renderer: new Renderer(), sanitize: false, sanitizer: null, silent: false, smartLists: false, smartypants: false, tables: true, xhtml: false }; } marked.defaults = marked.getDefaults(); /** * Expose */ marked.Parser = Parser; marked.parser = Parser.parse; marked.Renderer = Renderer; marked.TextRenderer = TextRenderer; 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 { root.marked = marked; } })(this || (typeof window !== 'undefined' ? window : global));
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