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Re: strange behaviour of `isearch-forward-regexp'
From: |
Paul Pogonyshev |
Subject: |
Re: strange behaviour of `isearch-forward-regexp' |
Date: |
Tue, 1 Jul 2003 03:16:02 +0000 |
User-agent: |
KMail/1.5.9 |
I wrote:
> While searching for " ?t" regular expression, letter 't' in word
> "reset" doesn't match. This is very strange since searching for
> "t?t" and even "^I?t" does match the letter. Is it "a feature"
> or a bug somewhere in Emacs?
Kevin Rodgers wrote:
> It's a feature, though it doesn't appear to be documented in the Emacs manual:
>
> | search-whitespace-regexp's value is "\\s-+"
> |
> | Documentation:
> | *If non-nil, regular expression to match a sequence of whitespace chars.
> | This applies to regular expression incremental search.
> | You might want to use something like "[ \t\r\n]+" instead.
> | In the Customization buffer, that is `[' followed by a space,
> | a tab, a carriage return (control-M), a newline, and `]+'.
>
> You need to type `C-s C-q SPC ? t', or set search-whitespace-regexp to nil.
Wouldn't it solve the problem if `search-whitespacec-regexp' was set
to "\\(\\s-+\\)" by default? Or would it break something match group
related?
And, btw, i'm not subscribed to the list. Could you please CC answers
to me?
Paul Pogonyshev