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 >

转载于:https://www.cnblogs.com/Elong/archive/2005/05/25/162186.html

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