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Re: compare-windows - synchronize points

From: Juri Linkov
Subject: Re: compare-windows - synchronize points
Date: 26 Aug 2003 08:28:42 +0300
User-agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3.50

Richard Stallman <address@hidden> writes:
> I can see how that would happen.  It suggests an idea to me.  The idea
> is to search for a larger matching substring first, and then try
> smaller matching substrings.  It's the same kind of idea as first
> trying smaller search ranges and then larger ones.

The latest code I posted 2003-08-19 has an implementation of exactly
same idea.  It first doubles search ranges, and if differences are
still not found, then it starts to halve a matching substring size.
So there are no problems with finding differences anymore.  It works
correctly in all cases I tested.

However, I think that the size of matching substring should be
customizable.  I found that current default value 32 (with which a
search is started) is optimal for most cases.  But sometimes user
may want to start with a lesser value to get more fine-grained results.


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