@Evan Thanks for that link, I posted a somewhat longer argument in there. Personally, I'd love <||>.
On Sun 17 Mar 2013 02:02:44 GMT, Evan Laforge wrote: > On Fri, Mar 15, 2013 at 8:49 PM, Niklas Hambüchen <m...@nh2.me> wrote: >> Is it not possible to add an alternative (no pun intended) to <|> that >> supports the semantics Evan wants? > > I assume it's the performance thing. Presumably it would need to pass > an extra flag with to the failure continuation to tell it to not > retry, though that doesn't sound so bad. Actually, Bryan's response > here: > > https://github.com/bos/attoparsec/issues/42 > > makes it sound like he's not opposed to <||> on performance grounds, > just that <|> is more intuitive. I agree in general, but not in the > case of error msgs! So maybe I just need to see if I can make a patch > to add <||>, sounds like Johan at least would be into that. _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
