问题描述
使用Mercurial，除了在某个名为"keepers"的目录中的文件外，我需要忽略所有文件.
Using Mercurial, I need to ignore all files except for those in a certain directory called "keepers".
表面上，使用Regex和Negative Lookahead似乎很容易；但是，尽管我可以在Regex Buddy和其他工具中验证我的正则表达式，但是在TortoiseHg中，它却无法按预期工作.
On the face of things, this seemed easy using Regex and Negative Lookahead; however, although I am able to verify my regex in Regex Buddy and other tools, in TortoiseHg, it doesn't work as expected.
文件:
- junk \ junk.txt
- 垃圾\文本
- keepers \ test \ test
- keepers \ test \ test2 \ hi.txt
- keepersblah.txt
只有在Keepers下的两个文件不应该被忽略.
Only the two files under keepers should be not be ignored.
这是我希望可以使用的正则表达式:
Here is the regex I hoped would work:
^(?!keepers/).+$
遗憾的是，这将导致所有文件被忽略.如果我将其更改为:
Regrettably, this causes all files to be ignored. If I change it to:
^(?!keepers).+$
它可以按您期望的那样工作.那就是它会忽略所有不是以keepers开头的文件/文件夹.但是我确实想忽略以管家开头的文件.
it works as you would expect. That is it ignores any files/folders that don't start with keepers. But I do want to ignore files that start with keepers.
怪诞的，如果我将其更改为此:
Bizarrely, if I change it to this:
^(?!keepers/).+\..+$
它将正确匹配该文件夹，但是如果没有扩展名，它将不会忽略不在keepers文件夹中的文件.
It will properly match the folder, but it will not ignore files that are not in the keepers folder if they don't have an extension.
任何建议将不胜感激.
删除无效的ImageShack链接
推荐答案
第一个表达式的问题是正则表达式也针对"keepers"本身进行了测试.可以在附加条件下添加该案例:
The problem with your first expression is that the regex is also tested against "keepers" itself. That case can be added with an additional condition:
^(?!keepers(?:/|$))
或(不太紧凑，但更易于理解):
or (less compact, but simpler to understand):
^(?!keepers/|keepers$)
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