Port of OpenBSD's sdiff

[Andrey Chernov]

On Tue, Jun 26, 2007 at 05:03:47PM +0800, LI Xin wrote:
> If memory serves me right, all of re libraries Ollivier has mentioned
> supports multibyte characters.  Maybe we should create or find some test
> cases to make sure there is no regression?

Ok. The next things we should check, is collating for singlebyte [a-z] 
ranges supported (because we do it). Some regex implementations (like 
true-awk one) refuse to do it.

-- 
http://ache.pp.ru/
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