On 2/2/07, Douglas Philips
I assert that the trailing comma is a feature, not a programmer forgetting "the last element", and that this is already explicitly allowed, as per the syntax fragments already quoted, repeated here for convenience:
-- from: http://www.haskell.org/onlinereport/syntax-iso.html#sectB.4 impspec -> ( import1 , ... , importn [ , ] ) (n>=0) | hiding ( import1 , ... , importn [ , ] ) (n>=0) exports -> ( export1 , ... , exportn [ , ] ) (n>=0)
Huh? I don't quite see what you're getting at here. The report says that the trailing comma is allowed in import and export lists, yes. But you were talking about trailing commas in lists and tuples, which would be a change to the existing language, not something that's "already explicitly allowed". Can you clarify what you meant? Cheers, Kirsten -- Kirsten Chevalier* chevalier@alum.wellesley.edu *Often in error, never in doubt "and there's too much darkness in an endless night to be afraid of the way we feel" -- Bob Franke