Right, it seems to me that there are basically three reasonable proposals here:
1. "\ of" with multiple arguments. This is consistent with existing layout, and seems like a nice generalization of lambda syntax. 2. "case of" with a single argument. This is consistent with existing layout, and seems like a nice generalization of sections. 3. "\" introducing layout, possibly with changes to layout rules. A much more intrusive change, but it does have a nice efficiency to it. Either of the first two would be fine. For that matter, they could even *both* be done -- with #2 being a shorthand to avoid parentheses -- without seeming too redundant to me. I tend to see the third option as too intrusive and dangerous, but I can see the argument for doing it. Given that we have these three options, I really don't see the benefit to "\ case" or similar ideas, which complicate layout rules for little reason, and mix syntax in such a way that it's difficult for me at least to even predict whether parentheses are required. On Mon, Jul 9, 2012 at 8:52 AM, Twan van Laarhoven <twa...@gmail.com> wrote: > On 09/07/12 14:44, Simon Marlow wrote: >> >> I now think '\' is too quiet to introduce a new layout context. The >> pressing >> need is really for a combination of '\' and 'case', that is >> single-argument so >> that we don't have to write parentheses. I think '\case' does the job >> perfectly. If you want a multi-clause multi-argument function, then give >> it a >> name. > > > There is an advantage here for "\of" in favor of "\case", namely that "of" > already introduces layout, while "case" does not. > > > > Twan > > > _______________________________________________ > Glasgow-haskell-users mailing list > Glasgow-haskell-users@haskell.org > http://www.haskell.org/mailman/listinfo/glasgow-haskell-users _______________________________________________ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
