Re: [PATCH] Experimental svn diff -w

On Saturday 04 February 2006 01:09, Jim Blandy wrote:

> Have you tried a normalization function which simply replaces all
> whitespace sequences with a single space? Deleting whitespace in most
> programming languages concatenates identifiers, which is a change
> people would usually like to know about.
>
> Of course, that wouldn't help us in our current space-before-paren
> situation.

If there were a regex engine (let's say PCRE, for definiteness)
built into Subversion then you could do

    svn diff --normalize-by-regex '\s+(\W)' '\1' \
             --normalize-by-regex '(\W)\s+' '\1'

to eliminate all whitespace that doesn't have identifier characters
on both sides.

-- 
Gareth McCaughan
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