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regexvim

Quite confused about `\?` in vim's regex

I'we been trying to do simple substitution in vim, and find out that the \? in vim not works with * or +, saying that (NFA regexp) Can't have a multi follow a multi, in the vim:

i want it to stop here, not here
~
~
~
[NORMAL] ...
:%s/^\(.*\?\)here//

If I remove \? it works, but the it regex matches up to 2nd here.

But with normal regex it works: https://regex101.com/r/iHdxxl/1

Why it isn't possible to use \? with * or \+ in vim?

Solution

  • As stated there, you can't add the ? char in vim after the asterisk. To make the search non greedy, you need to use .\{-} instead of .*:

    :%s/\(.\{-}\)here//