正则表达式调试器代码
<!-- copywrite by alai http://www.9499.net All rights reserve--><HTML><HEAD> <title>Power Maintenance Tools -- By Alai [http://www.9499.net]</title> <META HTTP-EQUIV="Content-Type" CONTENT="text/html;charset=gb_2312-80"> </HEAD> <body> <div style="FONT-WEIGHT:bold;FONT-SIZE:11pt;WIDTH:700px;TEXT-ALIGN:center"> 高级查找/替换、正则表达式练习器、Javascript脚本程序调试器<br> <textarea id='text1' rows='8' cols='82'></textarea><br> <span id="spanFirst">查询表达式</span>：<input id="txtFirst" type="text" size="60"><br> <span id="spanSecond">替换为</span>：<input id="txtSecond" type="text" size="56"><br> <input type="button" id="btnExe" value="运行脚本程序"> <input type="button" id="btnSchRpl" value="执行查找/替换"> <input type="button" id="btnUndo" value="撤消" disabled="true"> <input type="button" id="btnRedo" value="重做" disabled="true"> <br></div>
<script>
var aryUndo=[],aryRedo=[]function btnExe.onclick()
{
if(text1.value=="")return false aryCommand=text1.value.split("\r\n") var linetry{ for(line=0;line<=aryCommand.length-1;line++) { eval(aryCommand[line]+";") 
}}catch(e){ var msg="执行脚本程序程序出错，在第"+(line+1)+"行。\n" msg+="错误代码："+e.number+"\n" msg+="错误信息："+e.description+"\n" alert(msg)}}function btnSchRpl.onclick(){ if(txtFirst.value=="") { alert("请输入查询条件!") txtSecond.focus() return false } aryUndo[aryUndo.length]=text1.value aryRedo=[] btnRedo.disabled=true btnUndo.disabled=false var s=new RegExp(txtFirst.value,"ig") text1.value=text1.value.replace(s,txtSecond.value)}function btnUndo.onclick(){ aryRedo[aryRedo.length]=text1.value btnRedo.disabled=false text1.value =aryUndo[aryUndo.length-1] aryUndo.length-- if(aryUndo.length==0)btnUndo.disabled=true}function btnRedo.onclick(){ aryUndo[aryUndo.length]=text1.value btnUndo.disabled=false text1.value=aryRedo[aryRedo.length-1] aryRedo.length-- if(aryRedo.length==0)btnRedo.disabled=true}
</script> <br><div style="width:100%;text-align:center;">power by Alai <a href="http://www.9499.net">http://www.9499.net</a></div> </body></HTML>