获取HTML字符串中的特定标签_html 字符串找指定类-优快云博客

本文介绍了一种解析包含特殊字符和HTML标签的文本的方法，通过JavaScript实现了一个解析器，能够将这些特殊符号转换为可读性强的文本形式，并提供了一个示例应用。

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<meta charset="UTF-8" />
<html>
  <body>
    <script language=javascript>
        var txt= "Inhib] ${name}$${product1}$${produ4ct28}$[空$换行]${Revies}$[空行]Cou${product9}$p}o";
            txt= txt.replace(/\r\n|\r|\n/g,'[换行]').replace(/\s/g,'[空]');

        function resolveHTML(html){
            var myArr = new Array();
            var tag = 0;
            var val = '';
            for (var i=0;i<html.length;i++){
                if(html.charAt(i) == '$' || tag >0){
                    // alert(val+'    '+tag+'    '+html.charAt(i));
                    if(tag == 4){
                        tag = 0;val = '';
                    }
                    if(tag == 1 && html.charAt(i) != '{'){
                        tag = 0;val = '';
                    }
                    if(tag == 3 && html.charAt(i) != '$'){
                        tag = 0;val = '';
                    }

                    if(html.charAt(i) == '$' && tag == 0){
                        val += html.charAt(i);
                        tag = 1;
                    }
                    if(html.charAt(i) == '{' && tag == 1){
                        val += html.charAt(i);
                        tag = 2;
                    }
                    if(html.charAt(i) != '{' && html.charAt(i) != '}' && tag  == 2){
                        val += html.charAt(i);
                    }
                    if(html.charAt(i) == '}' && tag  == 2){
                        val += html.charAt(i);
                        tag = 3;
                    }
                    if(html.charAt(i) == '$' && tag == 3){
                        val += html.charAt(i);
                        tag = 4;
                        myArr[myArr.length]= val;
                    }
                }
            }
            return myArr;
        }

        var html = '';
        var myArr = resolveHTML(txt);
        var methed = '';
        var arg = 0;
        for(var i=0;i<myArr.length;i++){
            html+= '标签名称：<input type="text" id="mapKey'+i+'" name="mapKey" style="width: 200px" value="'+myArr[i]+'" />  ';

            methed = 'Get'+myArr[i].replace('${','').replace('}$','');
            arg = methed.replace(/[^0-9]/ig,"");
            if(/^(\-?)(\d+)$/.test(arg)){methed = methed.replace(arg,'');}else{arg=i;};
            html+= '方法名称：<input type="text" id="mapValue'+i+'" name="mapValue" style="width: 200px" value="'+methed+'" />  ';
            html+= '方法参数：<input type="text" id="mapArg'+i+'" name="mapArg" style="width: 200px" value="'+arg+'" /><br>  ';
        }
        document.write(html);

    </script>

  </body>
</html>