Subject: Re: [PATCH] xdiff/xemit.c (xdl_find_func): Elide trailing white space in a context header.

From: Petr Baudis <[email-masked]>
Date: Mon, 23 Oct 2006 23:03:28 +0200

Dear diary, on Mon, Oct 23, 2006 at 10:49:37PM CEST, I got a letter
where Linus Torvalds <[email-masked]> said that...
> 
> 
> On Mon, 23 Oct 2006, Jim Meyering wrote:
> >
> > This removes trailing blanks from git-generated diff headers
> > the same way a similar patch did that for GNU diff:
> 
> NO!
> 
> This is _wrong_
> 
> You should only remove the space IF IT IS THE ONLY THING ON THE WHOLE 
> LINE!
> 
> You must not remove white-space in general.
> 
> So the patch should check something like
> 
> 	if (len == 1 && rec[0] == ' ')
> 		len = 0;
> 
> and not like you did it.
> 
> Otherwise the patch will simply not even _apply_.

Not really - mind you, this is only about the diff headers. Actually, it
is only about the hunk headers, specifically when we append the function
name to the hunk header. A trailing whitespace can come out of that even
if the source does not have any trailing whitespaces since we trim the
line at 40 bytes.

-- 
				Petr "Pasky" Baudis
Stuff: http://pasky.or.cz/
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