发现一个不错的JavaScript写的格式JavaScript代码的程序,能够压缩代码,也能够格式化,功能不错。
<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>
<!--
/**//**//**//**
**==================================================================================================
**类名:CLASS_FORMATER
**功能:JS格式化
**示例:
---------------------------------------------------------------------------------------------------
varxx=newCLASS_FORMATER(code);
document.getElementById("display").innerHTML=xx.format();
---------------------------------------------------------------------------------------------------
**作者:ttyp
**邮件:ttyp@21cn.com
**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=" ,.?!;:\/<>(){}[]"' =+-|*%@#$^&";
//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]==" "){
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]==" "){
//处理换行
}elseif(codeArr[i]==" "){
slash_slash_comment_opened=false;
quote_opened=false;
line_num++;
if(!this.isCompress){
htmlTxt[htmlTxt.length]=" "+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]!=" "&&codeArr[i+1]!=" "
<METAcontent="MSHTML6.00.2800.1528"name=GENERATOR>
<METAcontent=""name=Author>
<METAcontent=""name=Keywords>
<METAcontent=""name=Description></HEAD>
<BODY>
<SCRIPTlanguage=JavaScript>
<!--
/**//**//**//**
**==================================================================================================
**类名:CLASS_FORMATER
**功能:JS格式化
**示例:
---------------------------------------------------------------------------------------------------
varxx=newCLASS_FORMATER(code);
document.getElementById("display").innerHTML=xx.format();
---------------------------------------------------------------------------------------------------
**作者:ttyp
**邮件:ttyp@21cn.com
**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=" ,.?!;:\/<>(){}[]"' =+-|*%@#$^&";
//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]==" "){
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]==" "){
//处理换行
}elseif(codeArr[i]==" "){
slash_slash_comment_opened=false;
quote_opened=false;
line_num++;
if(!this.isCompress){
htmlTxt[htmlTxt.length]=" "+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]!=" "&&codeArr[i+1]!=" "