Ikkles Blintworth wrote:
>
> Hello!
>
> One of the students in my class came upon this weird error.. I don't understand
> why it appears, but it appears to be a problem with the hugs parser. The error
> is "INTERNAL ERROR: parseInput". Here is the script:
>
> regards,
> Brian
I tried this with Hugs 98, Feb 00 release, on my NT 4.0 laptop,
and got:
bash% hugs bug.hs
__ __ __ __ ____ ___ _________________________________________
|| || || || || || ||__ Hugs 98: Based on the Haskell 98 standard
||___|| ||__|| ||__|| __|| Copyright (c) 1994-1999
||---|| ___|| World Wide Web: http://haskell.org/hugs
|| || Report bugs to: [EMAIL PROTECTED]
|| || Version: February 2000 _________________________________________
Hugs mode: Restart with command line option +98 for Haskell 98 mode
Reading file "c:/hugs98/lib/Prelude.hs":
Reading file "bug.hs":
Type checking
ERROR "bug.hs" (line 69): Type error in application
*** Expression : guess == "WILD"
*** Term : guess
*** Type : [[Char]]
*** Does not match : [Char]
Prelude>
No crash, and looking at the code, there is indeed a type error.
Can you give some more details, like the version of hugs
you are using, and the o/s you are running on, etc?
Thanks!
Andy Gill
