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/* * HTML Parser By John Resig (ejohn.org) * Original code by Erik Arvidsson, Mozilla Public License * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js * * // Use like so: * HTMLParser(htmlString, { * start: function(tag, attrs, unary) {}, * end: function(tag) {}, * chars: function(text) {}, * comment: function(text) {} * }); * * // or to get an XML string: * HTMLtoXML(htmlString); * * // or to get an XML DOM Document * HTMLtoDOM(htmlString); * * // or to inject into an existing document/DOM node * HTMLtoDOM(htmlString, document); * HTMLtoDOM(htmlString, document.body); * */ // Regular Expressions for parsing tags and attributes var startTag = /^<(\w+)((?:\s+[\w\-]+(?:\s*=\s*(?:(?:"[^"]*")|(?:'[^']*')|[^>\s]+))?)*)\s*(\/?)>/, endTag = /^<\/(\w+)[^>]*>/, attr = /([\w\-]+)(?:\s*=\s*(?:(?:"((?:\\.|[^"])*)")|(?:'((?:\\.|[^'])*)')|([^>\s]+)))?/g; // Empty Elements - HTML 4.01 var empty = makeMap("area,base,basefont,br,col,frame,hr,img,input,isindex,link,meta,param,embed"); // Block Elements - HTML 4.01 var block = makeMap("address,applet,blockquote,button,center,dd,del,dir,div,dl,dt,fieldset,form,frameset,hr,iframe,ins,isindex,li,map,menu,noframes,noscript,object,ol,p,pre,script,table,tbody,td,tfoot,th,thead,tr,ul"); // Inline Elements - HTML 4.01 var inline = makeMap("a,abbr,acronym,applet,b,basefont,bdo,big,br,button,cite,code,del,dfn,em,font,i,iframe,img,input,ins,kbd,label,map,object,q,s,samp,script,select,small,span,strike,strong,sub,sup,textarea,tt,u,var"); // Elements that you can, intentionally, leave open // (and which close themselves) var closeSelf = makeMap("colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr"); // Attributes that have their values filled in disabled="disabled" var fillAttrs = makeMap("checked,compact,declare,defer,disabled,ismap,multiple,nohref,noresize,noshade,nowrap,readonly,selected"); // Special Elements (can contain anything) var special = makeMap("script,style"); var HTMLParser = function (html, handler) { var index, chars, match, stack = [], last = html; stack.last = function () { return this[this.length - 1]; }; while (html) { chars = true; // Make sure we're not in a script or style element if (!stack.last() || !special[stack.last()]) { // Comment, DOCTYPE INCLUDED if (html.indexOf("<!--") == 0) { index = html.indexOf("-->"); if (index >= 0) { if (handler.comment) handler.comment(html.substring(4, index)); html = html.substring(index + 3); chars = false; } //doctype } else if (html.indexOf("<!") == 0) { index = html.indexOf(">"); if (index >= 0) { if (handler.doctype) handler.doctype(html.substring(2, index)); html = html.substring(index + 1); chars = false; } //script } else if (html.indexOf("<script") == 0) { index = html.indexOf("</script>"); if (index >= 0) { if (handler.script) handler.script(html.substring(7, index)); html = html.substring(index + 9); chars = false; } //style } else if (html.indexOf("<style>") == 0) { index = html.indexOf("</style>"); if (index >= 0) { if (handler.style) handler.style(html.substring(7, index)); html = html.substring(index + 8); chars = false; } // end tag } else if (html.indexOf("</") == 0) { match = html.match(endTag); if (match) { html = html.substring(match[0].length); match[0].replace(endTag, parseEndTag); chars = false; } // start tag } else if (html.indexOf("<") == 0) { match = html.match(startTag); if (match) { html = html.substring(match[0].length); match[0].replace(startTag, parseStartTag); chars = false; } } if (chars) { index = html.indexOf("<"); var text = index < 0 ? html : html.substring(0, index); html = index < 0 ? "" : html.substring(index); if (handler.chars) handler.chars(text); } } else { html = html.replace(new RegExp("(.*)<\/" + stack.last() + "[^>]*>"), function (all, text) { text = text.replace(/<!--(.*?)-->/g, "$1") .replace(/<!\[CDATA\[(.*?)]]>/g, "$1"); if (handler.chars) handler.chars(text); return ""; }); parseEndTag("", stack.last()); } if (html == last) throw "Parse Error: " + html; last = html; } // Clean up any remaining tags parseEndTag(); function parseStartTag(tag, tagName, rest, unary) { if (block[tagName]) { while (stack.last() && inline[stack.last()]) { parseEndTag("", stack.last()); } } if (closeSelf[tagName] && stack.last() == tagName) { parseEndTag("", tagName); } unary = empty[tagName] || !!unary; if (!unary) stack.push(tagName); if (handler.start) { var attrs = []; rest.replace(attr, function (match, name) { var value = arguments[2] ? arguments[2] : arguments[3] ? arguments[3] : arguments[4] ? arguments[4] : fillAttrs[name] ? name : ""; attrs[name] = value;//value.replace(/(^|[^\\])"/g, '$1\\\"') //"; //attrs.push({ // name: name, // value: value, // escaped: value.replace(/(^|[^\\])"/g, '$1\\\"') //" //}); }); if (handler.start) handler.start(tagName, attrs, unary); } } function parseEndTag(tag, tagName) { // If no tag name is provided, clean shop if (!tagName) var pos = 0; // Find the closest opened tag of the same type else for (var pos = stack.length - 1; pos >= 0; pos--) if (stack[pos] == tagName) break; if (pos >= 0) { // Close all the open elements, up the stack for (var i = stack.length - 1; i >= pos; i--) if (handler.end) handler.end(stack[i]); // Remove the open elements from the stack stack.length = pos; } } }; var HTMLtoXML = function (html) { var results = ""; HTMLParser(html, { start: function (tag, attrs, unary) { results += "<" + tag; for (var i = 0; i < attrs.length; i++) results += " " + attrs[i].name + '="' + attrs[i].escaped + '"'; results += (unary ? "/" : "") + ">"; }, end: function (tag) { results += "</" + tag + ">"; }, chars: function (text) { results += text; }, comment: function (text) { results += "<!--" + text + "-->"; } }); return results; }; // this.HTMLtoDOM = function( html, doc ) { // // There can be only one of these elements // var one = makeMap( "html,head,body,title" ); // // Enforce a structure for the document // var structure = { // link: "head", // base: "head" // }; // if( !doc ) { // if( typeof DOMDocument != "undefined" ) // doc = new DOMDocument(); // else if( typeof document != "undefined" && document.implementation && document.implementation.createDocument ) // doc = document.implementation.createDocument( "", "", null ); // else if( typeof ActiveX != "undefined" ) // doc = new ActiveXObject( "Msxml.DOMDocument" ); // } else // doc = doc.ownerDocument || // doc.getOwnerDocument && doc.getOwnerDocument() || // doc; // var elems = [], // documentElement = doc.documentElement || // doc.getDocumentElement && doc.getDocumentElement(); // // If we're dealing with an empty document then we // // need to pre-populate it with the HTML document structure // if( !documentElement && doc.createElement ) ( function() { // var html = doc.createElement( "html" ); // var head = doc.createElement( "head" ); // head.appendChild( doc.createElement( "title" ) ); // html.appendChil