Re: [Haskell-beginners] Parsing an integer

I've found that the token library imposes conventions on whitespace that make it difficult to use in many cases. On Sun, Nov 21, 2010 at 11:19 PM, Tim Baumgartner wrote:

Hi Stephen,

yes, it's Parsec, but I write this parser only for learning the language, so I don't care if I rewrite existing code. But thanks for the advice regarding performance. Patrick's answer was perfect for me and I will get used to

<$> = fmap

soon.

Tim

2010/11/21 Stephen Tetley :

...

Where is the Parser monad coming from?

If its Parsec, a "seasoned Haskeller" would avoid read (which is re-parsing already parsed data) and use the integer parser from Parsec's Token parser module.[*]

[*] The one caveat is that the number parsers in this module follow Haskell's lexical rules - you might not always want this. _______________________________________________ Beginners mailing list Beginners@haskell.org http://www.haskell.org/mailman/listinfo/beginners

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