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Re: highlight failed part of isearch input

From: David Kastrup
Subject: Re: highlight failed part of isearch input
Date: Wed, 11 Jul 2007 07:27:01 +0200
User-agent: Gnus/5.11 (Gnus v5.11) Emacs/22.1.50 (gnu/linux)

Stefan Monnier <address@hidden> writes:

>>> There is one inconsistence: when incrementally adding characters to the
>>> search string it highlights one part (only failed) of the search string,
>>> but when repeating the search with the same string from the search ring,
>>> it highlights the whole string.  This is a minor inconsistence, and can
>>> be tolerated if unavoidable.
>> Yes. I don't know how to fix that.
> We could simply try to find the longest prefix which does have a match.
> Can't be that hard.

When doing a regexp search for
what is the longest matching prefix for

What is it for
ab\(cdf\)?cgh matched to abcdc?  And what about character

"Can't be that hard" is always cause for fun...

David Kastrup, Kriemhildstr. 15, 44793 Bochum

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