Sublime Text 中的非捕获组正则表达式不起作用 [英] Non-capturing group reg-ex in Sublime Text not working

问题描述

我正在尝试删除标签之间的所有残留空间.所以我尝试使用正则表达式选择它们.

I'm trying to remove all lingering spaces between tags. So I try to select them with a regex.

<span>        </span>
      ^^^^^^^^

我的正则表达式是 (?:>) +(?:<).我正在尝试使用非捕获组从选择中排除 > 和 <，但它似乎不起作用.

My regex is (?:>) +(?:<). I'm trying to exclude the > and < from the selection with a non-capturing group, but it doesn't seem to be working.

目前，这两个正则表达式似乎在做同样的事情:

At the moment, these two regexes seem to do the exact same thing:

对于非捕获组:(?:>) +(?:<)

没有非捕获组:>+<

我认为我对正则表达式的理解不够好，但我不确定.这里有什么问题吗?

I think my understanding of regex is not good enough, but I'm not sure. What's wrong here?

推荐答案

A 非捕获组 不捕获组中的子模式(您可以稍后参考)，但是，所有在非捕获组中匹配的都不会从整个匹配结果中排除.

A non-capturing group doesn't capture the subpattern in a group (that you can refer later), however, all that have been matched in a non-capturing group is not excluded from the whole match result.

解决问题的方法是使用零宽度断言的lookarounds.环视只是测试，不是最终结果的一部分.

The way to solve the problem is to use lookarounds that are zero-width assertions. Lookarounds are only tests and are not part of the final result.

对于空格:

(?<=>) +(?=<)

对于所有空白字符:

(?<=>)\s+(?=<)

(另一种解决方案是使用 > +< 和 >< 作为替换字符串)

(An other solution consists to use > +< with >< as replacement string)

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