使用Javascript正则表达式来格式化XML内容

拼搏现实的明天。 2022-03-31 15:26 204阅读 0赞

使用得是Emeditor ，在看XML文档时，总是因为格式混乱而看不清。这个是一个Emeditor宏来自动格式化XML。下载：[formatXml.rar (1,021.00 bytes)][formatXml.rar _1_021.00 bytes]

下面这段是这个网页版的javascript格式化XML的代码。  
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">  
<html>  
<head>  
    <meta http-equiv=content-type content="text/html; charset=UTF-8">  
    <title>Xml格式化工具</title>  
    <script type="text/javascript">  
    String.prototype.removeLineEnd = function()  
    \{  
        return this.replace(/(<.+?\\s+?)(?:\\n\\s\*?(.+?=".\*?"))/g,'$1 $2')  
    \}  
    function formatXml(text)  
    \{  
        //去掉多余的空格  
        text = '\\n' + text.replace(/(<\\w+)(\\s.\*?>)/g,function($0, name, props)  
        \{  
            return name + ' ' + props.replace(/\\s+(\\w+=)/g," $1");  
        \}).replace(/>\\s\*?</g,">\\n<");  
          
        //把注释编码  
        text = text.replace(/\\n/g,'\\r').replace(//g,function($0, text)  
        \{  
            var ret = '';  
            //alert(ret);  
            return ret;  
        \}).replace(/\\r/g,'\\n');  
          
        //调整格式  
        var rgx = /\\n(<((\[^\\?\]).+?)(?:\\s|\\s\*?>|\\s\*?(\\/)>)(?:.\*?(?:(?:(\\/)>)|(?:<(\\/)\\2>)))?)/mg;  
        var nodeStack = \[\];  
        var output = text.replace(rgx,function($0,all,name,isBegin,isCloseFull1,isCloseFull2 ,isFull1,isFull2)\{  
            var isClosed = (isCloseFull1 == '/') || (isCloseFull2 == '/' ) || (isFull1 == '/') || (isFull2 == '/');  
            //alert(\[all,isClosed\].join('='));  
            var prefix = '';  
            if(isBegin == '!')  
            \{  
                prefix = getPrefix(nodeStack.length);  
            \}  
            else   
            \{  
                if(isBegin != '/')  
                \{  
                    prefix = getPrefix(nodeStack.length);  
                    if(!isClosed)  
                    \{  
                        nodeStack.push(name);  
                    \}  
                \}  
                else  
                \{  
                    nodeStack.pop();  
                    prefix = getPrefix(nodeStack.length);  
                \}

\}  
                var ret =  '\\n' + prefix + all;  
                return ret;  
        \});  
          
        var prefixSpace = -1;  
        var outputText = output.substring(1);  
        //alert(outputText);  
          
        //把注释还原并解码，调格式  
        outputText = outputText.replace(/\\n/g,'\\r').replace(/(\\s\*)/g,function($0, prefix,  text)  
        \{  
            //alert(\['\[',prefix,'\]=',prefix.length\].join(''));  
            if(prefix.charAt(0) == '\\r')  
                prefix = prefix.substring(1);  
            text = unescape(text).replace(/\\r/g,'\\n');  
            var ret = '\\n' + prefix + '';  
            //alert(ret);  
            return ret;  
        \});  
          
        return outputText.replace(/\\s+$/g,'').replace(/\\r/g,'\\r\\n');

</body>  
</html>

[formatXml.rar _1_021.00 bytes]: http://www.supidea.com/file.axd?file=2009%2f3%2fformatXml.rar