[Haskell-cafe] Hoogle is great but ...

Neil Mitchell ndmitchell at gmail.com
Wed Nov 11 14:25:39 EST 2009

Following up on this rather old thread, if you want to see a module
which has lots of input/output example pairs, and properties, in the
documentation then look at filepath (hoogle for takeExtension as an
example). These properties are also automatically transformed in to
test cases, so filepath has good documentation and good test coverage
all in one, plus the documentation is actually checked for
correctness. I think more libraries should do this - so I challenge
someone to write the definitive "tests and assertions in code" package
for Haskell.

And it's nice to hear that Hoogle is great :-)

Thanks, Neil

2009/10/25 zaxis <z_axis at 163.com>:
> http://www.haskell.org/hoogle/ is VERY great for haskeller. However, i feel
> hoogle should be improved by providing more examples as :
> isInfixOf :: Eq a => [a] -> [a] -> Bool
> The isInfixOf function takes two lists and returns True iff the first list
> is contained, wholly and intact, anywhere within the second.
> Example:
> isInfixOf "Haskell" "I really like Haskell." -> True
> isInfixOf "Ial" "I really like Haskell." -> False
> The Example code will be helpful for programmer to understand its
> definition.
> Sincerely!
> --
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