From: Jeff King <peff@peff.net>
Date: Mon, 19 Mar 2012 15:10:28 GMT
Subject: Re: A better git diff --word-diff (--word-diff-regex) ?
Message-ID: <20120319151028.GC24848@sigill.intra.peff.net>
In-Reply-To: <CAA01CsrJ12LmNYe6ujnDsZecJcGc8mFaB=1GC8-RZzvMYbYuUw@mail.gmail.com>

On Mon, Mar 19, 2012 at 10:44:31AM +0100, Piotr Krukowiecki wrote:

> is there a way to configure --word-diff to be a more programming
> language friendly? For example if I add one parameter to a function
> declaration, I'd like to see only the addition of the parameter as the
> change. But currently it shows much more.
> 
> For example if
>   void foo(int x);
> is changed to
>   void foo(int x, int y);
> I'd like to see only ",int y" as the change, not "x, int y);".

This does not directly answer your question, but you may want to look at
the diff-highlight script in contrib/diff-highlight. I wrote it because
I found word-diff often unreadable, but still wanted something to
highlight small changes on a line like this.

On your example, it produces:

  -void foo(int x);
  +void foo(int x{+, int y});

except that the {+...} bit is highlighted by color, which makes it quite
readable.

-Peff