如何搜索一行中单词之间出现多个空格 [英] How to search for occurrences of more than one space between words in a line

问题描述

如何搜索一行中单词之间出现多个空格的地方

How to search for occurrences of more than one space between words in a line

1. this is a line containing  2 spaces
2. this is a line containing   3 spaces
3. this is a line containing multiple spaces first  second   three   four

以上所有都是此正则表达式的有效匹配项.我应该使用什么正则表达式?

All the above are valid matches for this regex. What regex should I use?

推荐答案

[ ]{2,}

空格(2 个或更多)

您还可以检查这些空格前后的单词是否跟随.(不是其他空格，如制表符或换行符)

You could also check that before and after those spaces words follow. (not other whitespace like tabs or new lines)

w[ ]{2,}w

相同，但您也可以仅选择(捕获)用于替换等任务的空间

the same, but you can also pick (capture) only the spaces for tasks like replacement

w([ ]{2,})w

或者看到空格前后有什么，不只是单词字符(空格除外)

or see that before and after spaces there is anything, not only word characters (except whitespace)

[^s]([ ]{2,})[^s]

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