正規表現と一致し、特定のhtmlタグで複数行を破棄

Question

正規表現を使用すると、jspファイル内のhtmlタグの一致に少し問題があります。
私はjspファイルのコメント行を破棄して、一致する行を取得します。
1.キャッチコメント行ではなく、正規表現の一致グループでは、
2.キャッチラインだけ後のコメント行：
はここに私のテストhtmlタグ、

状態です。

`` `

[前]

<%-- 

    <img src="/x.gif" alt='x.gif'> 
    <input type="text" name="x" value="y"> 
--%> 
    <img src="/x.gif" alt='x.gif'> 
    <input type="text" name="x" value="y"> 

助けを

<img src="/x.gif" alt='x.gif'> 
    <input type="text" name="x" value="y"> 

` ``

TKS [後]。 :)

Answer 1

説明

<%--((?:<\/?[a-z]+(?=[\s>])(?:[^>=]|=(?:'[^']*'|"[^"]*"|[^'"\s]*))*\s?\/?>|[^<])*?)--%> 

この正規表現は、次の操作を行います：

• は<%--と--%>タグ
• 内括弧コメントの内容全体を節約見つけますグループ1をキャプチャするコメントタグ は難しいHTMLのパターンマッチング

例

ライブデモ

https://regex101.com/r/fH2xU5/3

サンプルテキストを作ることが困難エッジケースを回避

<span><a onmouseover=' if (3 > a) { var string=" <img src=NotTheDroidYouAreLookingFor.jpg>; "; } ' href="link.html">This is a droid I'm looking for: <img src=DesiredDroids.png></a> 
</span> 

<%-- 

    <img onmouseover=' if (3 > a) { var string=" --%> <img src=NotTheDroidYouAreLookingFor.jpg>; "; } ' src="/x.gif" alt='x.gif'> 
    <input type="text" name="x" value="y"> 
--%> 

No start comment tag 

    <img src="/x.gif" alt='x.gif'> 
    <input type="text" name="x" value="y"> 
--%> 

<%-- 

    <img src="/x.gif" alt='x.gif'> 
    <input type="text" name="x" value="y"> 
--%> 

必要なテキストでどのような機能

サンプルと一致し

MATCH 1 
1. [196-369] ` 

    <img onmouseover=' if (3 > a) { var string=" --%> <img src=NotTheDroidYouAreLookingFor.jpg>; "; } ' src="/x.gif" alt='x.gif'> 
    <input type="text" name="x" value="y"> 
` 

MATCH 2 
1. [481-557] ` 

    <img src="/x.gif" alt='x.gif'> 
    <input type="text" name="x" value="y"> 

説明

NODE      EXPLANATION 
---------------------------------------------------------------------- 
    <%--      '<%--' 
---------------------------------------------------------------------- 
    (      group and capture to \1: 
---------------------------------------------------------------------- 
    (?:      group, but do not capture (0 or more 
          times (matching the least amount 
          possible)): 
---------------------------------------------------------------------- 
     <      '<' 
---------------------------------------------------------------------- 
     \/?      '/' (optional (matching the most 
           amount possible)) 
---------------------------------------------------------------------- 
     [a-z]+     any character of: 'a' to 'z' (1 or 
           more times (matching the most amount 
           possible)) 
---------------------------------------------------------------------- 
     (?=      look ahead to see if there is: 
---------------------------------------------------------------------- 
     [\s>]     any character of: whitespace (\n, 
           \r, \t, \f, and " "), '>' 
---------------------------------------------------------------------- 
    )      end of look-ahead 
---------------------------------------------------------------------- 
     (?:      group, but do not capture (0 or more 
           times (matching the most amount 
           possible)): 
---------------------------------------------------------------------- 
     [^>=]     any character except: '>', '=' 
---------------------------------------------------------------------- 
     |      OR 
---------------------------------------------------------------------- 
     =      '=' 
---------------------------------------------------------------------- 
     (?:      group, but do not capture: 
---------------------------------------------------------------------- 
      '      '\'' 
---------------------------------------------------------------------- 
      [^']*     any character except: ''' (0 or 
            more times (matching the most 
            amount possible)) 
---------------------------------------------------------------------- 
      '      '\'' 
---------------------------------------------------------------------- 
     |      OR 
---------------------------------------------------------------------- 
      "      '"' 
---------------------------------------------------------------------- 
      [^"]*     any character except: '"' (0 or 
            more times (matching the most 
            amount possible)) 
---------------------------------------------------------------------- 
      "      '"' 
---------------------------------------------------------------------- 
     |      OR 
---------------------------------------------------------------------- 
      [^'"\s]*     any character except: ''', '"', 
            whitespace (\n, \r, \t, \f, and " 
            ") (0 or more times (matching the 
            most amount possible)) 
---------------------------------------------------------------------- 
     )      end of grouping 
---------------------------------------------------------------------- 
    )*      end of grouping 
---------------------------------------------------------------------- 
     \s?      whitespace (\n, \r, \t, \f, and " ") 
           (optional (matching the most amount 
           possible)) 
---------------------------------------------------------------------- 
     \/?      '/' (optional (matching the most 
           amount possible)) 
---------------------------------------------------------------------- 
     >      '>' 
---------------------------------------------------------------------- 
    |      OR 
---------------------------------------------------------------------- 
     [^<]      any character except: '<' 
---------------------------------------------------------------------- 
    )*?      end of grouping 
---------------------------------------------------------------------- 
)      end of \1 
---------------------------------------------------------------------- 
    --%>      '--%>' 
----------------------------------------------------------------------