1、
复制代码 代码如下:
<>
<scriptlanguage="javascript"
type="text/javascript">
//去除所有的注释
String.prototype.DeleteComment=function()
{
varstr=this.replace(/(['"])(.+?)(['"])/g,function(s,s1,s2,s3){returns1+s2.replace(/[/*]/g,"$&")+s3});
str=str.replace(///[^r]+|/*[sS]+?*//g,"");
str=str.replace(/(['"])(.+?)(['"])/g,function(s,s1,s2,s3){returns1+s2.replace(/([^])/g,"$1")+s3});
returnstr;
}
//格式代码
String.prototype.FormatCode=function()
{
returnthis.replace(/$/mg,"").replace(/[^s>;]$/mg,"$&;");
}
//删除字符串前后多余的空格
String.prototype.Trim=function(m)
{
returnthis.replace(m?/^s*|s*$/mg:/^s*|s*$/g,"");
}
//运行代码
functionRunCode(obj)
{
window.open('','_blank').document.write(obj.value);
}
</script>
测试代码：<br/>
<textAreaid="Text"rows="25"cols="80">
<scriptlanguage="JavaScript">
/*
测试代码
*/
varx=5;
document.write("x=//"+x);
document.write("bh/*"+x);
document.write("x=jjhj*/hhhhhh"+x);
document.write("x=//"+x);
alert(22)
alert(22)
vara="/fwe/////wefawef";
alert(/^/*[^/]*$/.test(a));
//注释
</script>
</textArea><br/><br/>
第1步：<buttononclick="Text.value=Text.value.DeleteComment();">删除注释</button><br/><br/>
第2步：<buttononclick="Text.value=Text.value.FormatCode();">格式代码</button><br/><br/>
第3步：<buttononclick="Text.value=Text.value.Trim(true);">去除两边空格</button><br/><br/>
第4步：<buttononclick="RunCode(Text);">运行代码</button><br/><br/>
2、
复制代码 代码如下:<HTML><HEAD><TITLE>Format</TITLE>
<METAcontent="MSHTML6.00.2800.1528"name=GENERATOR>
<METAcontent=""name=Author>
<METAcontent=""name=Keywords>
<METAcontent=""name=Description></HEAD>
<BODY>
<SCRIPTlanguage=JavaScript>
<-------------------------------------------------------------------------------------------------
varxx=newCLASS_FORMATER(code);
document.getElementById("display").innerHTML=xx.format();
---------------------------------------------------------------------------------------------------
**作者：ttyp
**邮件：<ahref="mailto:ttyp@21cn.com">ttyp@21cn.com</a>
**日期：2006-5-21
**版本：0.1
**==================================================================================================
**/
functionCLASS_FORMAT(code){
//哈希表类
functionHashtable(){
this._hash=newObject();
this.add=function(key,value){
if(typeof(key)!="undefined"){
if(this.contains(key)==false){
this._hash[key]=typeof(value)=="undefined"?null:value;
returntrue;
}else{
returnfalse;
}
}else{
returnfalse;
}
}
this.remove=function(key){deletethis._hash[key];}
this.count=function(){vari=0;for(varkinthis._hash){i++;}returni;}
this.items=function(key){returnthis._hash[key];}
this.contains=function(key){returntypeof(this._hash[key])!="undefined";}
this.clear=function(){for(varkinthis._hash){deletethis._hash[k];}}
}
this._caseSensitive=true;
//字符串转换为哈希表
this.str2hashtable=function(key,cs){
var_key=key.split(/,/g);
var_hash=newHashtable();
var_cs=true;
if(typeof(cs)=="undefined"||cs==null){
_cs=this._caseSensitive;
}else{
_cs=cs;
}
for(variin_key){
if(_cs){
_hash.add(_key[i]);
}else{
_hash.add((_key[i]+"").toLowerCase());
}
}
return_hash;
}
//获得需要转换的代码
this._codetxt=code;
if(typeof(syntax)=="undefined"){
syntax="";
}
this._deleteComment=false;
//是否大小写敏感
this._caseSensitive=true;
//可以后面加块语句的关键字
this._blockElement=this.str2hashtable("switch,if,while,try,finally");
//是函数申明
this._function=this.str2hashtable("function");
//本行括号内分号不做换行
this._isFor="for";
this._choiceElement=this.str2hashtable("else,catch");
this._beginBlock="{";
this._endBlock="}";
this._singleEyeElement=this.str2hashtable("var,new,return,else,delete,in,case");
//得到分割字符
this._wordDelimiters=",.?!;:/<>(){}[]"'rnt=+-|*%@#$^&";
//引用字符
this._quotation=this.str2hashtable("",'");
//行注释字符
this._lineComment="//";
//转义字符
this._escape="";
//多行引用开始
this._commentOn="/*";
//多行引用结束
this._commentOff="*/";
//行结束词
this._rowEnd=";";
this._in="in";
this.isCompress=false;
this.style=0;
this._tabNum=0;
this.format=function(){
varcodeArr=newArray();
varword_index=0;
varhtmlTxt=newArray();
if(this.isCompress){
this._deleteComment=true;
}
//得到分割字符数组(分词)
for(vari=0;i<this._codetxt.length;i++){
if(this._wordDelimiters.indexOf(this._codetxt.charAt(i))==-1){//找不到关键字
if(codeArr[word_index]==null||typeof(codeArr[word_index])=='undefined'){
codeArr[word_index]="";
}
codeArr[word_index]+=this._codetxt.charAt(i);
}else{
if(typeof(codeArr[word_index])!='undefined'&&codeArr[word_index].length>0)
word_index++;
codeArr[word_index++]=this._codetxt.charAt(i);
}
}
varquote_opened=false;//引用标记
varslash_star_comment_opened=false;//多行注释标记
varslash_slash_comment_opened=false;//单行注释标记
varline_num=1;//行号
varquote_char="";//引用标记类型
varfunction_opened=false;
varbracket_open=false;
varfor_open=false;
//按分割字，分块显示
for(vari=0;i<=word_index;i++){
//处理空行（由于转义带来）
if(typeof(codeArr[i])=="undefined"||codeArr[i].length==0){
continue;
}elseif(codeArr[i]==""||codeArr[i]=="t"){
if(slash_slash_comment_opened||slash_star_comment_opened){
if(!this._deleteComment){
htmlTxt[htmlTxt.length]=codeArr[i];
}
}
if(quote_opened){
htmlTxt[htmlTxt.length]=codeArr[i];
}
}elseif(codeArr[i]=="n"){
//处理换行
}elseif(codeArr[i]=="r"){
slash_slash_comment_opened=false;
quote_opened=false;
line_num++;
if(!this.isCompress){
htmlTxt[htmlTxt.length]="rn"+this.getIdent();
}
//处理function里的参数标记
}elseif(!slash_slash_comment_opened&&!slash_star_comment_opened&&!quote_opened&&this.isFunction(codeArr[i])){
htmlTxt[htmlTxt.length]=codeArr[i]+"";
function_opened=true;
}elseif(!slash_slash_comment_opened&&!slash_star_comment_opened&&!quote_opened&&codeArr[i]==this._isFor){
htmlTxt[htmlTxt.length]=codeArr[i];
for_open=true;
}elseif(!slash_slash_comment_opened&&!slash_star_comment_opened&&!quote_opened&&codeArr[i]=="("){
bracket_open=true;
htmlTxt[htmlTxt.length]=codeArr[i];
}elseif(!slash_slash_comment_opened&&!slash_star_comment_opened&&!quote_opened&&codeArr[i]==")"){
bracket_open=false;
htmlTxt[htmlTxt.length]=codeArr[i];
}elseif(!slash_slash_comment_opened&&!slash_star_comment_opened&&!quote_opened&&codeArr[i]==this._rowEnd){
if(!this.isCompress){
if(!for_open){
if(i<word_index&&(codeArr[i+1]!="r"&&codeArr[i+1]!="n")){
htmlTxt[htmlTxt.length]=codeArr[i]+"n"+this.getIdent();
}else{
htmlTxt[htmlTxt.length]=codeArr[i]+this.getIdent();
}
}else{
htmlTxt[htmlTxt.length]=codeArr[i];
}
}else{
htmlTxt[htmlTxt.length]=codeArr[i];
}
}elseif(!slash_slash_comment_opened&&!slash_star_comment_opened&&!quote_opened&&codeArr[i]==this._beginBlock){
for_open=false;
if(!this.isCompress){
switch(this.style){
case0:
this._tabNum++;
htmlTxt[htmlTxt.length]=codeArr[i]+"n"+this.getIdent();
break;
case1:
htmlTxt[htmlTxt.length]="n"+this.getIdent();
this._tabNum++;
htmlTxt[htmlTxt.length]=codeArr[i]+"n"+this.getIdent();
break;
default:
this._tabNum++;
htmlTxt[htmlTxt.length]=codeArr[i];
break;
}
}else{
htmlTxt[htmlTxt.length]=codeArr[i];
}
}elseif(!slash_slash_comment_opened&&!slash_star_comment_opened&&!quote_opened&&codeArr[i]==this._endBlock){
if(!this.isCompress){
this._tabNum--;
if(i<word_index&&codeArr[i+1]!=this._rowEnd){
htmlTxt[htmlTxt.length]="n"+this.getIdent()+codeArr[i];
}else{
htmlTxt[htmlTxt.length]="n"+this.getIdent()+codeArr[i];
}
}else{
if(i<word_index&&codeArr[i+1]!=this._rowEnd){
htmlTxt[htmlTxt.length]=codeArr[i]+this._rowEnd;
}else{
htmlTxt[htmlTxt.length]=codeArr[i];
}
}
//处理关键字
}elseif(!slash_slash_comment_opened&&!slash_star_comment_opened&&!quote_opened&&this.isBlockElement(codeArr[i])){
htmlTxt[htmlTxt.length]=codeArr[i];
//处理内置对象(后面加一个空格)
}elseif(!slash_slash_comment_opened&&!slash_star_comment_opened&&!quote_opened&&this.isSingleEyeElement(codeArr[i])){
if(codeArr[i]==this._in){
htmlTxt[htmlTxt.length]="";
}
htmlTxt[htmlTxt.length]=codeArr[i]+"";
//处理双引号（引号前不能为转义字符）
}elseif(!slash_star_comment_opened&&!slash_slash_comment_opened&&this._quotation.contains(codeArr[i])){
if(quote_opened){
//是相应的引号
if(quote_char==codeArr[i]){
htmlTxt[htmlTxt.length]=codeArr[i];
quote_opened=false;
quote_char="";
}else{
htmlTxt[htmlTxt.length]=codeArr[i];
}
}else{
htmlTxt[htmlTxt.length]=codeArr[i];
quote_opened=true;
quote_char=codeArr[i];
}
//处理转义字符
}elseif(codeArr[i]==this._escape){
htmlTxt[htmlTxt.length]=codeArr[i];
if(i<word_index-1){
if(codeArr[i+1].charCodeAt(0)>=32&&codeArr[i+1].charCodeAt(0)<=127){
htmlTxt[htmlTxt.length]=codeArr[i+1].substr(0,1);
htmlTxt[htmlTxt.length]=codeArr[i+1].substr(1);
i=i+1;
}
}
//处理多行注释的开始
}elseif(!slash_slash_comment_opened&&!slash_star_comment_opened&&!quote_opened&&this.isStartWith(this._commentOn,codeArr,i)){
slash_star_comment_opened=true;
if(!this._deleteComment){
htmlTxt[htmlTxt.length]=this._commentOn;
}
i=i+this.getSkipLength(this._commentOn);
//处理单行注释
}elseif(!slash_slash_comment_opened&&!slash_star_comment_opened&&!quote_opened&&this.isStartWith(this._lineComment,codeArr,i)){
slash_slash_comment_opened=true;
if(!this._deleteComment){
htmlTxt[htmlTxt.length]=this._lineComment;
}
i=i+this.getSkipLength(this._lineComment);
//处理忽略词
}elseif(!slash_slash_comment_opened&&!slash_star_comment_opened&&!quote_opened&&this.isStartWith(this._ignore,codeArr,i)){
slash_slash_comment_opened=true;
htmlTxt[htmlTxt.length]=this._ignore;
i=i+this.getSkipLength(this._ignore);
//处理多行注释结束
}elseif(!quote_opened&&!slash_slash_comment_opened&&this.isStartWith(this._commentOff,codeArr,i)){
if(slash_star_comment_opened){
slash_star_comment_opened=false;
if(!this._deleteComment){
htmlTxt[htmlTxt.length]=this._commentOff;
}
i=i+this.getSkipLength(this._commentOff);
}
}else{
//不是在字符串中
if(!quote_opened){
//如果不是在注释重
if(!slash_slash_comment_opened&&!slash_star_comment_opened){
htmlTxt[htmlTxt.length]=codeArr[i];
//注释中
}else{
if(!this._deleteComment){
htmlTxt[htmlTxt.length]=codeArr[i];
}
}
}else{
htmlTxt[htmlTxt.length]=codeArr[i];
}
}
}
returnhtmlTxt.join("");
}
this.isStartWith=function(str,code,index){
if(typeof(str)!="undefined"&&str.length>0){
varcc=newArray();
for(vari=index;i<index+str.length;i++){
cc[cc.length]=code[i];
}
varc=cc.join("");
if(this._caseSensitive){
if(str.length>=code[index].length&&c.indexOf(str)==0){
returntrue;
}
}else{
if(str.length>=code[index].length&&c.toLowerCase().indexOf(str.toLowerCase())==0){
returntrue;
}
}
returnfalse;
}else{
returnfalse;
}
}
this.isFunction=function(val){
returnthis._function.contains(this._caseSensitive?val:val.toLowerCase());
}
this.isBlockElement=function(val){
returnthis._blockElement.contains(this._caseSensitive?val:val.toLowerCase());
}
this.isChoiceElement=function(val){
returnthis._choiceElement.contains(this._caseSensitive?val:val.toLowerCase());
}
this.isSingleEyeElement=function(val){
returnthis._singleEyeElement.contains(this._caseSensitive?val:val.toLowerCase());
}
this.isNextElement=function(from,word){
for(vari=from;i<word.length;i++){
if(word[i]!=""&&word[i]!="t"&&word[i]!="r"&&word[i]!="n"){
returnthis.isChoiceElement(word[i]);
}
}
returnfalse;
}
this.getSkipLength=function(val){
varcount=0;
for(vari=0;i<val.length;i++){
if(this._wordDelimiters.indexOf(val.charAt(i))>=0){
count++;
}
}
if(count>0){
count=count-1;
}
returncount;
}
this.getIdent=function(){
varn=[];
for(vari=0;i<this._tabNum;i++){
n[n.length]="t";
}
returnn.join("");
}
}
functiondoformat(o){
varhtmltxt="";
if(o==null){
alert("domNodeisnull!");
return;
}
var_codetxt="";
if(typeof(o)=="object"){
switch(o.tagName){
case"TEXTAREA":
case"INPUT":
_codetxt=o.value;
break;
case"DIV":
case"SPAN":
_codetxt=o.innerText;
break;
default:
_codetxt=o.innerHTML;
break;
}
}else{
_codetxt=o;
}
var_syn=newCLASS_FORMAT(_codetxt);
htmltxt=_syn.format();
returnhtmltxt;
}
functiongo()
{
varcode=document.getElementById("code").value;
varxx=newCLASS_FORMAT(code);
vara=newDate();
if(document.getElementById('cboOperate').selectedIndex==1){
xx.isCompress=true;
}else{
xx.style=parseInt(document.getElementById('cboStyle').value);
}
document.getElementById("display").value=xx.format();
alert("共花："+(newDate().getTime()-a.getTime())+"ms");
}
//-->
</SCRIPT>
<TEXTAREAid=coderows=12cols=100>
/*
这个是一个类
*/
functionxx(num,str){//说明
vara=num;this.aa=a;
this.bb=function(){alert(str);}
this.cc=function(){for(vari=0;i<10;i++){document.title=i;}}};
xx.prototype.dd=function(){alert("ddkd");}
vara=newxx(100,"hello"),b=newxx(0,"ttyp");
if(1>2){alert();
}
else{
alert("hell");
}
a.bb();
b.dd();
alert(a.aa);
</TEXTAREA><BR>
<selectid="cboOperate"onchange="if(this.selectedIndex==1)document.getElementById('cboStyle').disabled=true;elsedocument.getElementById('cboStyle').disabled=false;">
<optionvalue="0">格式化</option>
<optionvalue="1">压缩</option>
</select>
<selectid="cboStyle">
<optionvalue="0">经典</option>
<optionvalue="1">微软</option>
</select>
<INPUTonclick=go()type=buttonvalue=go><br>
<textareaid=displayrows=12cols=100>
</textarea>
</BODY></HTML>