
2 Oct
2010
2 Oct
'10
9:23 p.m.
On Wed, Sep 29, 2010 at 1:01 PM, Daniel Fischer
On Wednesday 29 September 2010 19:10:22, Ben Franksen wrote:
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.
parsec2 did that, I don't know whether that change is intentional or accidental.
I came up with a smaller example which shows a similar problem:
bracket = char '{' *> return () test = bracket *> (bracket <|> return ()) *> char 'a'
For the input "{b" the error message should mention that we can take either a '{' or an 'a', however it only mentions the 'a'. However I know how to fix this one, and it doesn't fix the bug evidenced by the above program. Antoine