On Fri, Mar 07, 2014 at 08:23:05AM +0100, Johannes Sixt wrote:
> No, I meant lines like
>
> static double var;
> -static int old;
> +static int new;
>
> The motivation is to show hints where in a file the change is located:
> Anything that could be of significance for the author should be picked up.
I see. Coupled with what you said below:
> As I said, my motivation is not so much to find a "container", but rather
> a clue to help locate a change while reading the patch text. I can speak
> for myself, but I have no idea what is more important for the majority.
your proposal makes a lot more sense to me, and I think that is really
at the center of our discussion. I do not have a gut feeling for which
is "more right" (i.e., "container" versus "context").
But given that most of the cases we are discussing are ones where the
"diff -p" default regex gets it right (or at least better than) compared
to the C regex, I am tempted to say that we should be erring in the
direction of simplicity, and just finding interesting lines without
worrying about containers (i.e., it argues for your patch).
> > Makes sense. I noticed your fix is to look for end-of-line or comments
> > afterwards. Would it be simpler to just check for a non-colon, like:
> >
> > !^[ \t]*[A-Za-z_][A-Za-z_0-9]*:($|[^:])
>
> I want to match [[:space:]] after the label's colon, because I have lot's
> of C++ files with CRLF, and I need to match the CR. Your more liberal
> pattern would fit as well, although it would pick up a bit field as in
>
> struct foo {
> unsigned
> flag: 1;
> -old
> +new
Thanks, I was having trouble thinking of another good use of a colon,
but bitfields are what I was missing. Your pattern is probably better
here.
So I am leaning towards your patch, but I'm not sure if I understand all
of the implications for "git grep". Can you give some concrete examples?
-Peff
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