On 3 Mar 2012, at 04:30, Omari Norman wrote:
>
> On the other hand, I notice that attoparsec and polyparse backtrack by
> default, and attoparsec claims to be faster than Parsec (I can't remember if
> polyparse makes this claim).
In my benchmarks, polyparse has about the same performance as Parsec, when
using the monadic style (possibly a very tiny bit faster). But polyparse is
hugely, asymptotically, faster than Parsec when your parser is written in
applicative style, your input text is large, and you consume the parse results
lazily.
Regards,
Malcolm
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