From: Junio C Hamano <gitster@pobox.com>
Date: Fri, 19 Jun 2015 17:20:00 GMT
Subject: Re: [PATCH] Improve contrib/diff-highlight to highlight unevenly-sized hunks
Message-ID: <xmqqlhffaa4f.fsf@gitster.dls.corp.google.com>
In-Reply-To: <20150619053223.GA27241@peff.net>

Jeff King <peff@peff.net> writes:

> I do strip it off, so it is OK for it to be different in both the
> pre-image and post-image. But what I can't tolerate is the
> intermingling with actual data:
>
>   +\t\t\x1b[32m;foo
>   +\t\x1b[32m;bar

I think that depends on the definition of "strip it off" ;-)  What I
meant was that whitespace coloring can appear anywhere on the line,
e.g.

    echo COPYING whitespace=tab-in-indent,-space-before-tab >.gitattributes
    printf " \tHeh\n" >>COPYING
    git diff

will give you

    <new> + <reset> SP <wserror> HT <reset> <new> Heh <reset> LF

Obviously, stripping "+" painted in "new" is not sufficient.

	Side note: hmm, shouldn't that SP painted in <new>, though?

> I think this "array of spans" is the only way to go. Otherwise whichever
> markup scheme processes the hunk first ruins the data for the next
> processor.

Yes, I agree with that 100%.