Created
August 22, 2013 16:23
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Extract as an html string the doctype tag and html open tag for parsing out doctypes and xmlns when altering html documents.
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| function getDocTypeStr(htmlStr){ | |
| var getByXMLNS,docTypeStr, index=htmlStr.indexOf('<head>'); | |
| getByXMLNS=function(){ | |
| if(!htmlStr.match(/xmlns/i)){ | |
| return false; | |
| } else { | |
| var index_tmp,docTypeStr,newIndex,index=htmlStr.indexOf('xmlns'), | |
| sub_tmp=htmlStr.substr(index); | |
| index_tmp=sub_tmp.indexOf('>'); | |
| newIndex=index_tmp + index; | |
| docTypeStr=htmlStr.substr(0,newIndex) + '>';} | |
| return docTypeStr; | |
| } | |
| if(index===-1){ | |
| docTypeStr=getByXMLNS() || '<html>'; | |
| } else { | |
| docTypeStr=htmlStr.substr(0,index);} | |
| return docTypeStr; | |
| } |
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