38 lines
15 KiB
JavaScript
38 lines
15 KiB
JavaScript
/**
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* marked - a markdown parser
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* Copyright (c) 2011-2013, Christopher Jeffrey. (MIT Licensed)
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* https://github.com/chjj/marked
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*/
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(function(){var block={newline:/^\n+/,code:/^( {4}[^\n]+\n*)+/,fences:noop,hr:/^( *[-*_]){3,} *(?:\n+|$)/,heading:/^ *(#{1,6}) *([^\n]+?) *#* *(?:\n+|$)/,nptable:noop,lheading:/^([^\n]+)\n *(=|-){3,} *\n*/,blockquote:/^( *>[^\n]+(\n[^\n]+)*\n*)+/,list:/^( *)(bull) [\s\S]+?(?:hr|\n{2,}(?! )(?!\1bull )\n*|\s*$)/,html:/^ *(?:comment|closed|closing) *(?:\n{2,}|\s*$)/,def:/^ *\[([^\]]+)\]: *<?([^\s>]+)>?(?: +["(]([^\n]+)[")])? *(?:\n+|$)/,table:noop,paragraph:/^((?:[^\n]+\n?(?!hr|heading|lheading|blockquote|tag|def))+)\n*/,
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text:/^[^\n]+/};block.bullet=/(?:[*+-]|\d+\.)/;block.item=/^( *)(bull) [^\n]*(?:\n(?!\1bull )[^\n]*)*/;block.item=replace(block.item,"gm")(/bull/g,block.bullet)();block.list=replace(block.list)(/bull/g,block.bullet)("hr",/\n+(?=(?: *[-*_]){3,} *(?:\n+|$))/)();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+(?!:/|@)\\b";block.html=replace(block.html)("comment",/\x3c!--[\s\S]*?--\x3e/)("closed",
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/<(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)();block.normal=merge({},block);block.gfm=merge({},block.normal,{fences:/^ *(`{3,}|~{3,}) *(\S+)? *\n([\s\S]+?)\s*\1 *(?:\n+|$)/,paragraph:/^/});block.gfm.paragraph=replace(block.paragraph)("(?!","(?!"+block.gfm.fences.source.replace("\\1",
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"\\2")+"|")();block.tables=merge({},block.gfm,{nptable:/^ *(\S.*\|.*)\n *([-:]+ *\|[-| :]*)\n((?:.*\|.*(?:\n|$))*)\n*/,table:/^ *\|(.+)\n *\|( *[-:]+[-| :]*)\n((?: *\|.*(?:\n|$))*)\n*/});function Lexer(options){this.tokens=[];this.tokens.links={};this.options=options||marked.defaults;this.rules=block.normal;if(this.options.gfm)if(this.options.tables)this.rules=block.tables;else this.rules=block.gfm}Lexer.rules=block;Lexer.lex=function(src,options){var lexer=new Lexer(options);return lexer.lex(src)};
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Lexer.prototype.lex=function(src){src=src.replace(/\r\n|\r/g,"\n").replace(/\t/g," ").replace(/\u00a0/g," ").replace(/\u2424/g,"\n");return this.token(src,true)};Lexer.prototype.token=function(src,top){var src=src.replace(/^ +$/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,
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"");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,
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"").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(/^ *:-+ *$/.test(item.align[i]))item.align[i]="left";else item.align[i]=null;for(i=0;i<item.cells.length;i++)item.cells[i]=item.cells[i].split(/ *\| */);this.tokens.push(item);continue}if(cap=this.rules.lheading.exec(src)){src=
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src.substring(cap[0].length);this.tokens.push({type:"heading",depth:cap[2]==="="?1:2,text:cap[1]});continue}if(cap=this.rules.hr.exec(src)){src=src.substring(cap[0].length);this.tokens.push({type:"hr"});continue}if(cap=this.rules.blockquote.exec(src)){src=src.substring(cap[0].length);this.tokens.push({type:"blockquote_start"});cap=cap[0].replace(/^ *> ?/gm,"");this.token(cap,top);this.tokens.push({type:"blockquote_end"});continue}if(cap=this.rules.list.exec(src)){src=src.substring(cap[0].length);
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bull=cap[2];this.tokens.push({type:"list_start",ordered:bull.length>1});cap=cap[0].match(this.rules.item);next=false;l=cap.length;i=0;for(;i<l;i++){item=cap[i];space=item.length;item=item.replace(/^ *([*+-]|\d+\.) +/,"");if(~item.indexOf("\n ")){space-=item.length;item=!this.options.pedantic?item.replace(new RegExp("^ {1,"+space+"}","gm"),""):item.replace(/^ {1,4}/gm,"")}if(this.options.smartLists&&i!==l-1){b=block.bullet.exec(cap[i+1])[0];if(bull!==b&&!(bull.length>1&&b.length>1)){src=cap.slice(i+
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1).join("\n")+src;i=l-1}}loose=next||/\n\n(?!\s*$)/.test(item);if(i!==l-1){next=item[item.length-1]==="\n";if(!loose)loose=next}this.tokens.push({type:loose?"loose_item_start":"list_item_start"});this.token(item,false);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:cap[1]==="pre"||cap[1]==="script",text:cap[0]});continue}if(top&&
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(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(/^ *:-+: *$/.test(item.align[i]))item.align[i]=
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"center";else if(/^ *:-+ *$/.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][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",
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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:/^\x3c!--[\s\S]*?--\x3e|^<\/?\w+(?:"[^"]*"|'[^']*'|[^'">])*?>/,link:/^!?\[(inside)\]\(href\)/,reflink:/^!?\[(inside)\]\s*\[([^\]]*)\]/,nolink:/^!?\[((?:\[[^\]]*\]|[^\[\]])*)\]/,strong:/^__([\s\S]+?)__(?!_)|^\*\*([\s\S]+?)\*\*(?!\*)/,em:/^\b_((?:__|[\s\S])+?)_\b|^\*((?:\*\*|[\s\S])+?)\*(?!\*)/,
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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*/;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)\*\*(?!\*)/,
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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;
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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);
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out+=cap[1];continue}if(cap=this.rules.autolink.exec(src)){src=src.substring(cap[0].length);if(cap[2]==="@"){text=cap[1][6]===":"?this.mangle(cap[1].substring(7)):this.mangle(cap[1]);href=this.mangle("mailto:")+text}else{text=escape(cap[1]);href=text}out+='<a href="'+href+'">'+text+"</a>";continue}if(cap=this.rules.url.exec(src)){src=src.substring(cap[0].length);text=escape(cap[1]);href=text;out+='<a href="'+href+'">'+text+"</a>";continue}if(cap=this.rules.tag.exec(src)){src=src.substring(cap[0].length);
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out+=this.options.sanitize?escape(cap[0]):cap[0];continue}if(cap=this.rules.link.exec(src)){src=src.substring(cap[0].length);out+=this.outputLink(cap,{href:cap[2],title:cap[3]});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][0];src=cap[0].substring(1)+src;continue}out+=this.outputLink(cap,link);continue}if(cap=this.rules.strong.exec(src)){src=
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src.substring(cap[0].length);out+="<strong>"+this.output(cap[2]||cap[1])+"</strong>";continue}if(cap=this.rules.em.exec(src)){src=src.substring(cap[0].length);out+="<em>"+this.output(cap[2]||cap[1])+"</em>";continue}if(cap=this.rules.code.exec(src)){src=src.substring(cap[0].length);out+="<code>"+escape(cap[2],true)+"</code>";continue}if(cap=this.rules.br.exec(src)){src=src.substring(cap[0].length);out+="<br>";continue}if(cap=this.rules.del.exec(src)){src=src.substring(cap[0].length);out+="<del>"+
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this.output(cap[1])+"</del>";continue}if(cap=this.rules.text.exec(src)){src=src.substring(cap[0].length);out+=escape(cap[0]);continue}if(src)throw new Error("Infinite loop on byte: "+src.charCodeAt(0));}return out};InlineLexer.prototype.outputLink=function(cap,link){if(cap[0][0]!=="!")return'<a href="'+escape(link.href)+'"'+(link.title?' title="'+escape(link.title)+'"':"")+">"+this.output(cap[1])+"</a>";else return'<img src="'+escape(link.href)+'" alt="'+escape(cap[1])+'"'+(link.title?' title="'+
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escape(link.title)+'"':"")+">"};InlineLexer.prototype.smartypants=function(text){if(!this.options.smartypants)return text;return text.replace(/--/g,"\u2014").replace(/'([^']*)'/g,"\u2018$1\u2019").replace(/"([^"]*)"/g,"\u201c$1\u201d").replace(/\.{3}/g,"\u2026")};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};function Parser(options){this.tokens=[];this.token=null;
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this.options=options||marked.defaults}Parser.parse=function(src,options){var parser=new Parser(options);return parser.parse(src)};Parser.prototype.parse=function(src){this.inline=new InlineLexer(src.links,this.options);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;
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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"<hr>\n";case "heading":return"<h"+this.token.depth+">"+this.inline.output(this.token.text)+"</h"+this.token.depth+">\n";case "code":if(this.options.highlight){var code=this.options.highlight(this.token.text,this.token.lang);if(code!=null&&code!==this.token.text){this.token.escaped=true;this.token.text=code}}if(!this.token.escaped)this.token.text=
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escape(this.token.text,true);return"<pre><code"+(this.token.lang?' class="'+this.options.langPrefix+this.token.lang+'"':"")+">"+this.token.text+"</code></pre>\n";case "table":var body="",heading,i,row,cell,j;body+="<thead>\n<tr>\n";for(i=0;i<this.token.header.length;i++){heading=this.inline.output(this.token.header[i]);body+=this.token.align[i]?'<th align="'+this.token.align[i]+'">'+heading+"</th>\n":"<th>"+heading+"</th>\n"}body+="</tr>\n</thead>\n";body+="<tbody>\n";for(i=0;i<this.token.cells.length;i++){row=
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this.token.cells[i];body+="<tr>\n";for(j=0;j<row.length;j++){cell=this.inline.output(row[j]);body+=this.token.align[j]?'<td align="'+this.token.align[j]+'">'+cell+"</td>\n":"<td>"+cell+"</td>\n"}body+="</tr>\n"}body+="</tbody>\n";return"<table>\n"+body+"</table>\n";case "blockquote_start":var body="";while(this.next().type!=="blockquote_end")body+=this.tok();return"<blockquote>\n"+body+"</blockquote>\n";case "list_start":var type=this.token.ordered?"ol":"ul",body="";while(this.next().type!=="list_end")body+=
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this.tok();return"<"+type+">\n"+body+"</"+type+">\n";case "list_item_start":var body="";while(this.next().type!=="list_item_end")body+=this.token.type==="text"?this.parseText():this.tok();return"<li>"+body+"</li>\n";case "loose_item_start":var body="";while(this.next().type!=="list_item_end")body+=this.tok();return"<li>"+body+"</li>\n";case "html":return!this.token.pre&&!this.options.pedantic?this.inline.output(this.token.text):this.token.text;case "paragraph":return"<p>"+this.inline.output(this.token.text)+
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"</p>\n";case "text":return"<p>"+this.parseText()+"</p>\n"}};function escape(html,encode){return html.replace(!encode?/&(?!#?\w+;)/g:/&/g,"&").replace(/</g,"<").replace(/>/g,">").replace(/"/g,""").replace(/'/g,"'")}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=
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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}if(opt)opt=merge({},marked.defaults,opt);var tokens=Lexer.lex(tokens,opt),highlight=opt.highlight,pending=0,l=tokens.length,i=0;if(!highlight||highlight.length<3)return callback(null,Parser.parse(tokens,opt));var done=function(){delete opt.highlight;
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var out=Parser.parse(tokens,opt);opt.highlight=highlight;return callback(null,out)};for(;i<l;i++)(function(token){if(token.type!=="code")return;pending++;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.";
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if((opt||marked.defaults).silent)return"<p>An error occured:</p><pre>"+escape(e.message+"",true)+"</pre>";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,smartLists:false,silent:false,highlight:null,langPrefix:""};marked.Parser=Parser;marked.parser=Parser.parse;marked.Lexer=Lexer;marked.lexer=Lexer.lex;marked.InlineLexer=InlineLexer;marked.inlineLexer=InlineLexer.output;
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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)}());
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