Re: output diff

[Phil Holmes]

----- Original Message ----- 
From: "Noeck" <address@hidden>
To: "lilypond-user" <address@hidden>
Sent: Thursday, January 02, 2014 7:23 AM
Subject: output diff


> Hi
>
> I remember that I have seen something like a diff of output files for
> lilypond as regtests some where. Objects that match are drawn in black
> and if not, the old one is printed in red and the new in green.
>
> Is that available as a general tool?
> My purpose would be to look at my scores if something changed in the
> output when I upgrade to a newer version.
>
> TIA
> Joram

Is this what you're remembering?

http://philholmes.net/lilypond/regtestresults/

Those are produced with a Windows program that I wrote in C#.  If it's of 
use, you'd be welcome to a copy.

Alternatively you might like to look at

http://lilypond.org/doc/v2.17/Documentation/contributor/pixel_002dbased-regtest-comparison

--
Phil Holmes