CFML RegEx删除javascript注释

Question

我希望使用coldfusion从字符串中删除javascript注释.我目前正在使用reReplace(string, "(\/\*.*\*\/)|\s(\/\/.{1,}[\r\n])", "", "all").

这是一个测试字符串:

<script type="text/javascript">
// comment
var a=1; // another comment
/* try{if (...)}; */
var b=2;
</script>
src="//domain.com"

该预期的结果是(和我所得到的使用replace()在javacript):

<script type="text/javascript">
var a=1; 
var b=2;
</script>
src="//domain.com"

实际CFML结果:

<script type="text/javascript">
src="//domain.com"

再次,它在javascript中工作正常.

如何使用CFML？

---

更新1,我的应用程序中更具体的代码.它基本上是app.cfc的OnRequest()函数中的缩小器.

1. 获取页面html
2. 删除两种类型的JS注释
3. 展平\ r \n到\ r \n
4. 将\n +\t替换为空格
5. 将\ t替换为空格
6. 用单个空格替换双空格
7. 用单个\ r替换double\r \n

8. 用逗号替换逗号+\r \n

   <!--- Define arguments. --->
   <cfargument
       name="TargetPage"
       type="string"
       required="true"
       />
   
   <cfheader name="content-type" value="text/html; charset=utf-8" />
   <cfheader name="X-UA-Compatible" value="IE=edge" />
   <cfheader name="window-target" value="_top" />
   <cfheader name="imagetoolbar" value="no" />
   <cfheader name="viewport" value="wwidth=device-width, initial-scale=1, maximum-scale=1, user-scalable=0" />
   
   <cfsavecontent variable="finalContent">
   <cfinclude template="#ARGUMENTS.TargetPage#" />
   </cfsavecontent>
   
   <cfset variables.regex = '(?:("\/\/[^"]*?")|\/\*.*?\*\/|\/\/.*?\n)'>
   <!--- <cfset finalContent = reReplace(finalContent,variables.regex, "\1", "ALL")> --->
   <cfset finalContent = replace(finalContent,  chr(13), chr(10), 'all')>
   <cfset finalContent = replace(finalContent,  chr(10)&chr(9), ' ', 'all')>
   <cfset finalContent = replace(finalContent,  chr(9), ' ', 'all')>
   <cfloop from="1" to="20" index="e">
       <cfset finalContent = replace(finalContent, '  ', ' ', 'all')>
       <cfset finalContent = replace(finalContent, chr(10)&chr(10), chr(10), 'all')>
   </cfloop>
   <cfset finalContent = replace(finalContent,  ','&chr(10), ',', 'all')>
   <cfset finalContent = replace(finalContent,  chr(10), '', 'all')>
   
   <cfoutput>#finalContent#</cfoutput>
   
   <cfreturn />
   

还有一些真正的(但截断的)输出:

<script src="//code.jquery.com/jquery-2.1.4.min.js"></script>
<script type="text/javascript">
//<![CDATA[
try{if (...) {...;}} catch(e){};
//]]>
// comment
var a=1; // another comment
/* try{if (...)}; */
var b=2;
</script>
<script type="text/javascript">
 unsavedChanges=0;
 tinymce.init({
     // GENERAL
     // PLUGINS
     // LINK
     link_list: "/pagesJSON.cfm", target_list: [
         {title: 'Same Window/Tab', value: '_self'}, {title: 'New Window/Tab', value: '_blank'}
     ],
     // FILE MANAGER
     external_filemanager_path: '/filemanager/',
     // IMAGE
     image_advtab: true
 });
 </script>
<link rel='stylesheet' href='https://fonts.googleapis.com/css?family=Lato%3A400%2C700%2C900&#038;ver=4.3.1' type='text/css' media='all'/>

Answer 1

你可以试试这个:

<!--- JS with comment --->
<cfsavecontent variable="variables.jsWithCommment">
    <script type="text/javascript">
    // comment
    var a=1; // another comment
    /* try{if (...)}; */
    var b=2;
    </script>
    src="//domain.com"
</cfsavecontent>

<!--- Replace with first capture for each branch --->
<cfset variables.regex = '(?:("\/\/[^"]*?")|\/\*.*?\*\/|\/\/.*?\n)'>
<cfset variables.jsWithoutComment = reReplace(variables.jsWithCommment, variables.regex, "\1", "ALL")>

正则表达式:

Branch 1: ("\/\/[^"]*?")  ==> Capture(to replace with same later i.e., \1) URL shorthand
Branch 2: \/\*.*?\*\/     ==> MultiLine Comment
Branch 3: \/\/.*?\n       ==> SingleLine Comment

这是TryCF.