Re: DoAndIfThenElse

26 Nov 2009


      On Thu, Nov 26, 2009 at 03:14:13PM +0100, Christian Maeder wrote:
...
David Virebayre schrieb:
...
On Thu, Nov 26, 2009 at 10:29 AM, Christian Maeder
mailto:Christian.Maeder@dfki.de> wrote:
I wonder why I still get a "parse error (possibly incorrect
    indentation)" for:
\begin{code}
    main = do
     if True then putStrLn "1"
     else putStrLn "2"
    \end{code}
This works with hugs!
...
Isn't the proposal about :
\begin{code}
main = do
 if True then putStrLn "1"
 ;else putStrLn "2"
\end{code}
This does not work with hugs. ";" must be indented further.
\begin{code}
main = do
  if True then putStrLn "1";
  else putStrLn "2"
\end{code}
This does also not work with hugs (";" at the end)
In both cases you have 2 semi-colons before the else (after the layout
rule has been applied).


Thanks
Ian

Re: DoAndIfThenElse

Ian Lynagh