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js.html
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<html>
<body style="width: 420px">
<h3>过滤规则和正则表达式互转</h3>
规则(正则):<br />
<textarea id="TextAreaRuler" cols="50" rows="10"></textarea><br />
<br />
<input type="submit" value="转换成正则表达式" onclick="change()" />
<input type="submit" value="转换成过滤规则" onclick="change(true)" />
<label class="checkbox"><input type="checkbox" id="regexbr" checked="checked" onclick="change()">正则换行</label>
<br />
<br />
结果：<br />
<textarea id="TextAreaResult" cols="50" rows="10"></textarea><br /><br />
<br />
<script type="text/javascript">
var regexbr=document.getElementById('regexbr');
function change(flag) {
var str = document.getElementById('TextAreaRuler').value;
if(!flag)
convert(str);
else
reconvert(str);
}
function convert(str) {
//convert('"*://secure.gaug.es/*"');
//// 替换规则:
//// /\*:/g 替换所有 "*:" 为空
//// /\./g 替换所有 "." 为\.
//// /(\\)?\/(\*)?"/g 替换所有结尾是 \/*"或/*"或/" 的为 '/'
//// /\* /g 替换所有 "*" 为.*
//// /"/g 替换首尾引号" 为 "/"
var res = str.replace(/\*:/g, "").replace(/\./g, "\\.").replace(/\//g,"\\/").replace(/\^/g,"").replace(/\n$|\n\n/g,"")
.replace(/(\\)?\/(\*)?"/g, '/').replace(/\*/g, ".*").replace(/"/g, "/").replace(/\|\|/g,"(\\/\\/|\\.)");
if(!regexbr.checked)
res = res.replace(/^|$/g,"/").replace(/\n/g,"/,/");
document.getElementById('TextAreaResult').value = res;
}
function reconvert(str) {
var res = str.replace(/(\()?(\\\/\\\/)(\|\\\.\))?/g, "||").replace(/\\/g, "").replace(/\.\*/g, "*")
.replace(/\/,\//g,"\n").replace(/^\/|\/$/g,"");;
document.getElementById('TextAreaResult').value = res;
}
</script>
</body>
</html>