Wittie <[EMAIL PROTECTED]> wrote:
> >fact n
> > | n == 0 = 1
> > | otherwise = n * (fact(n-1))
>
> Hugs complains about an unexpected ;
>
> Sometimes code after a guarded expression fixes the problem. We've
> tried putting the | up against the > or underneath the parameter. The
> same code seems to work for some students but not for others.
I would guess that it fails when there is a mixture of tabs and spaces
before the different guards. Haskell insists that tabs are 8 chars
wide, but many editors are configured to display tabs as 2 or 4 chars
wide. Hence, code that looks in correct vertical alignment might well
be indented oddly as far as the compiler is concerned.
Regards,
Malcolm
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