C＃不包括字符串正则表达式 [英] C# Regular Expression excluding a string

问题描述

我得到的字符串的集合，所有我想要的正则表达式是收集所有开始以http ..

HREF =HTTP ：//www.test.com/cat/1-one_piece_episodes/的href =http://www.test.com/cat/2-movies_english_subbed/的href =http://www.test.com/cat / 3-english_dubbed /HREF =http://www.exclude.com

这是我的正则表达式模式..

 的href =（。*？）[^＃]
  

和返回该

  HREF =HTTP：// www.test.com/cat/1-one_piece_episodes/
 HREF =http://www.test.com/cat/2-movies_english_subbed/
 HREF =HTTP：// WWW。 xxxx.com/cat/3-english_dubbed/
 HREF =http://www.exclude.com
  

什么是具有在排除在最后一场比赛..或排除匹配模式排除域内像HREF =htt​​p://www.exclude.com

编辑：
多个排除

  HREF =（（:(？！？| \bexclude\b |。\bxxxx\b））*）[^＃]
  

解决方案

@ridgerunner和我将正则表达式更改为：

  HREF =（（？:( ?! \bexclude\b）[^]）*）[^＃]
  

它匹配所有的的href 属性，只要他们不结束＃，并且不包含字排除。

说明：

 的href =＃匹配HREF =
（＃捕捉... 
（？：＃以下组：
（？！ ＃展望检查字符串的下一部分是不是... ... 
 \b＃整个单词
＃排除排除
 \b＃（\b是字边界锚）
）的前瞻
 [^]＃如果成功＃结束，匹配任何字符，除了报价
）*＃经常重复地
）＃结束捕获组1 
 [^＃]的＃匹配一个非＃字符，收盘报价。 
  

要允许多个禁词：

  HREF =（（:( ?! \b（？：？排除|它太）\b）[^]）*）[^＃]
  

I got a collection of string and all i want for regex is to collect all started with http..

href="http://www.test.com/cat/1-one_piece_episodes/"href="http://www.test.com/cat/2-movies_english_subbed/"href="http://www.test.com/cat/3-english_dubbed/"href="http://www.exclude.com"

this is my regular expression pattern..

href="(.*?)[^#]"

and return this

href="http://www.test.com/cat/1-one_piece_episodes/"
href="http://www.test.com/cat/2-movies_english_subbed/"
href="http://www.xxxx.com/cat/3-english_dubbed/"
href="http://www.exclude.com"

what is the pattern for excluding the last match.. or excluding matches that has the exclude domain inside like href="http://www.exclude.com"

EDIT: for multiple exclusion

href="((?:(?!"|\bexclude\b|\bxxxx\b).)*)[^#]"

解决方案

@ridgerunner and me would change the regex to:

href="((?:(?!\bexclude\b)[^"])*)[^#]"

It matches all href attributes as long as they don't end in # and don't contain the word exclude.

Explanation:

href="     # Match href="
(          # Capture...
 (?:       # the following group:
  (?!      # Look ahead to check that the next part of the string isn't...
   \b      # the entire word
   exclude # exclude
   \b      # (\b are word boundary anchors)
  )        # End of lookahead
  [^"]     # If successful, match any character except for a quote
 )*        # Repeat as often as possible
)          # End of capturing group 1
[^#]"      # Match a non-# character and the closing quote.

To allow multiple "forbidden words":

href="((?:(?!\b(?:exclude|this|too)\b)[^"])*)[^#]"

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