Re: [Haskell-cafe] How come pattern match does not recognize this code style?

26 Oct 2009


      Ah, I see.
The reason I have to use my style is the same as others: the list is
too long....

On Mon, Oct 26, 2009 at 11:27 AM, Daniel Fischer
 wrote:
...
Am Montag 26 Oktober 2009 03:39:13 schrieb Magicloud Magiclouds:
...
Hi,
  In case of this:
case bala of
  [ bala
  , bala
  , bala ] -> bala bala bala
  _ -> bala
  ghc 6.10.4 would fail to compile, because of the wrong indent of
line ", bala".
Yes. It must, because the `of' opens a new layout block, so a line indented to the same
level as the opening square bracket starts a new definition and it tries to parse it as
case bala of
   { [ bala;
     , bala;
     , bala ] -> bala bala bala;
     _ -> bala;
   }
What about
case bala of
   [ bala, bala, bala ]
       -> bala bala bala
   _ -> bala
?
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