Re: Interpretation of a space in regexp isearch?

[Dmitry Gutov]

Bastien <address@hidden> writes:
> I just found out that
>
>   C-u C-s [a-z]\. [A-Z]
>
> matches more than one space character.
>
> Is this a bug?
>
> How can I search only one space character?

The docstring for `isearch-forward-regexp' says:

  In regexp incremental searches, a space or spaces normally matches any
  whitespace (the variable `search-whitespace-regexp' controls precisely
  what that means). If you want to search for a literal space and
  nothing else, enter C-q SPC.