I have a question about Parsec. The following program
> import Control.Applicative ((*>),(<*))
> import Text.Parsec
> import Text.Parsec.Char
> block p = char '{' *> p <* char '}'
> parser = block (many digit)
> main = parseTest parser "{123a}"
gives the output
parse error at (line 1, column 5):
unexpected "a"
expecting "}"
Note the last line mentions only '}'. I would rather like to see
expecting "}" or digit
since the parser could very well accept another digit here.
(1) What is the reason for this behaviour?
(2) Is there another combinator that behaves as I would like?
(3) Otherwise, how do I write one myself?
BTW, I am using parsec-3.1.0 and ghc-6.12.3.
Cheers
Ben
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