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From: Andreas Politz <politza@fh-trier.de>
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Subject: Re: Why does this happen in regexp isearch?
Date: Sat, 03 Jul 2010 13:18:56 +0200
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Deniz Dogan <deniz.a.m.dogan@gmail.com> writes:

> I open cus-edit.el.gz in Emacs and do a regexp isearch for:
>
> ^  ;;
>
> (Beginning of line, then two spaces, then two semicolons.)
>
> For some reason that I don't understand, it seems to match "beginning
> of line, any number of spaces OR tabs, then two semicolons". When I
> search for:
>
> ^ \{2\};;
>
> ...it finds what I'm looking for. Why is this?

(setq search-spaces-regexp nil)

, or read it's documentation.

-ap