http://hackage.haskell.org/trac/haskell-prime/wiki/DoAndIfThenElse says
(and my memory seems to agree) that GHC has been changed to accept
things like
readnums f n = do eof <- hIsEOF f
if eof
then return n
else do l <- hGetLine f
readnums f (n + read l)
where the `then' and `else' are aligned with the `if' rather than being
slightly more indented as the Haskell 98 standard requires.
Yet, when I try it with GHCi 6.8.2 I get an error:
Prelude> :load "/home/monnier/tmp/foo.hs"
[1 of 1] Compiling Main ( /home/monnier/tmp/foo.hs, interpreted )
/home/monnier/tmp/foo.hs:6:18:
parse error (possibly incorrect indentation)
Failed, modules loaded: none.
Prelude>
Does anybody know what's up with that?
Stefan
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