"use strict"; /** * htmlParser改造自: https://github.com/blowsie/Pure-JavaScript-HTML5-Parser */ var startTag = /^<([-A-Za-z0-9_]+)((?:\s+[a-zA-Z_:][-a-zA-Z0-9_:.]*(?:\s*=\s*(?:(?:"[^"]*")|(?:'[^']*')|[^>\s]+))?)*)\s*(\/?)>/, endTag = /^<\/([-A-Za-z0-9_]+)[^>]*>/, attr = /([a-zA-Z_:][-a-zA-Z0-9_:.]*)(?:\s*=\s*(?:(?:"((?:\\.|[^"])*)")|(?:'((?:\\.|[^'])*)')|([^>\s]+)))?/g; // Empty Elements - HTML 5 var empty = makeMap("area,base,basefont,br,col,frame,hr,img,input,link,meta,param,embed,command,keygen,source,track,wbr"); // Block Elements - HTML 5 var block = makeMap("a,address,code,article,applet,aside,audio,blockquote,button,canvas,center,dd,del,dir,div,dl,dt,fieldset,figcaption,figure,footer,form,frameset,h1,h2,h3,h4,h5,h6,header,hgroup,hr,iframe,ins,isindex,li,map,menu,noframes,noscript,object,ol,output,p,pre,section,script,table,tbody,td,tfoot,th,thead,tr,ul,video"); // Inline Elements - HTML 5 var inline = makeMap("abbr,acronym,applet,b,basefont,bdo,big,br,button,cite,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("wxxxcode-style,script,style,view,scroll-view,block"); function HTMLParser(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 if (html.indexOf(""); if (index >= 0) { if (handler.comment) handler.comment(html.substring(4, index)); html = html.substring(index + 3); chars = false; } // end tag } else if (html.indexOf("]*>"), function (all, text) { text = text.replace(/|/g, "$1$2"); 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) { tagName = tagName.toLowerCase(); 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.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 { tagName = tagName.toLowerCase(); 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; } } }; function makeMap(str) { var obj = {}, items = str.split(","); for (var i = 0; i < items.length; i++) { obj[items[i]] = true; }return obj; } module.exports = HTMLParser;