js:正则处理超文本流

<input

type='text' value = 's>om

" ething' name=names asdf=asdf>

</input>><input value=a>a name=aa><input name=bb value=bb>

</textarea>

var re = new Array()

re[re.length] = Array("单标记　　　", /<(\w+)[^"']*?((["'])?[^\3]*?\3[^"']*?)+>/ig)

re[re.length] = Array("属性(带引号)", /\w+\s*=\s*(["'])[^\1]*?\1/ig)

re[re.length] = Array("属性(没引号)", /\w+\s*=\s*\w+/gi)

//alert(re.exec(ss))

for (var i=0; i<re.length; i++)

{

document.write("<input type=radio name=re value="+i+">"+re[i][0]+" <input id=reValue size=100 type=text>　")

document.write("<button onclick='re["+i+"][1]=document.all.reValue["+i+"].value'>保存</button>")

document.write("<button onclick='document.all.reValue["+i+"].value=re["+i+"][1]'>恢复</button>
")

document.all.reValue.length ? document.all.reValue[document.all.reValue.length-1].value = re[i][1] : document.all.reValue.value = re[i][1]

}

document.all.re[0].checked = true

function matchTest()

{

var ss = html_string.innerText

var re

for (var i=0; i<document.all.re.length; i++) if(document.all.re[i].checked) break

re = eval(document.all.reValue[i].value)

rx = re.exec(ss)

testArea.innerHTML = ""

for (var i=1; i<9; i++) testArea.innerHTML += " RegExp$"+i+"="+eval("RegExp.$"+i)+"　"

rv = ss.match(re)

for (var i=0; rv && i<rv.length; i++)

{

testArea.innerHTML += "<xmp style='background:#EEEEEE; padding:5px'>"+rv[i]+"</xmp>"

}

</script>

[Ctrl+A 全选注:如需引入外部Js需刷新才能执行]