On 2014-09-25 at 13:34:16 +0200, Daniel Trstenjak wrote: [...]
> One compromise could be, that additional commatas in literal lists > are only allowed at the beginning and at the end. ...another idea could be to make it a separate Pragma (e.g. ExtraCommasLists) if there's a chance of ListSections (which would conflict with this) becoming a reality. > Then your use case would work and also something like: > > abc = [ > -- a > , a > -- b > , b > -- c > , c > ] I'd probably prefer leading-comma over trailing-comma style anyway (as I've grown to like it over the years). > I think that are the main uses of additional commatas in literal lists > and I can't see that someone really wants a list literal like '[,3,,4,]', > so wrongly reading it as a list section shouldn't be an issue. Yeah, I don't care much about extra middle-commas either. Personally, I'd be already happy with just trailing & leading extra-comma support. _______________________________________________ ghc-devs mailing list ghc-devs@haskell.org http://www.haskell.org/mailman/listinfo/ghc-devs
