[racket-dev] check-match?

Gotcha.  match-pred can be a separate thing.

check-match can also let you use the identifiers bound in the match with an
optional third argument, which relies on more than match-pred anyway.
 That's what I'm doing.


On Mon, Nov 19, 2012 at 9:30 PM, Robby Findler
<robby at eecs.northwestern.edu>wrote:

> I think it is better to have a check-match since that way people are
> more likely to find it.
>
> Robby
>
> On Mon, Nov 19, 2012 at 7:56 PM, Joe Gibbs Politz <joe at cs.brown.edu>
> wrote:
> >>  (? P) => (lambda (x) (match x [P true] [_ false]))
> >
> > I like this quite a bit.  It wouldn't be crazy to add it as
> > match-pred(icate) right next to match-lambda, match-let, and friends
> > (
> http://docs.racket-lang.org/reference/match.html?q=match&q=match-pred#(form._((lib._racket/match..rkt)._match-lambda))
> ).
> >
> > Then, for rackunit, it's just up to how much we like writing
> >
> > (check-match foo P)
> >
> > vs.
> >
> > (check-pred (match-pred P) foo)
> >
> > Both seem handy to me.
> >
> > _________________________
> >   Racket Developers list:
> >   http://lists.racket-lang.org/dev
> >
>
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