[Haskell-cafe] Examples for the problem

[Stephen Tetley]

Actually this is stranger than I thought - from testing it seems like
Attoparsec's (<|>) is different to Parsec's. From what I'm seeing
Attoparsec appears to do a full back track for (<|>) regardless of
whether the string lexer is wrapped in try, whereas Parsec needs try
to backtrack.

On 2 March 2011 16:24, Stephen Tetley <stephen.tetley at gmail.com> wrote:

>
> *try* means backtrack on failure, and try the next parser. So if you
> want ill formed strings to throw an error if they aren't properly
> enclosed in double quotes don't use try.