Hi,
I've got a problem
with parser primitives using Hugs.
I have the standard
code to define parsers for digits etc
sat
:: (Char -> Bool) -> Parser Char
sat p = do x <- item
if p x then return x else failure
digit :: Parser Char
digit = sat isDigit
sat p = do x <- item
if p x then return x else failure
digit :: Parser Char
digit = sat isDigit
but when I try to
run it I get the error
Undefined variable
"isDigit"
It does the same for
any of the isXXXX predicates. I´m completely flummoxed, so any help would be
greatly appreciated. :(
Thanks,
Nik
Dr Nik Freydís Whitehead
University of Akureyri,
Iceland
*********************************************************************
Having the moral high ground is
good.
Having the moral high ground and an
FGMP-15 is better.
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