Re: [Haskell-cafe] pleac, examples, etc

On 14/11/06, chris moline wrote:

--- brad clawsie wrote:

...

it would be great if some of the more informed posters here took a stab at filling in

http://pleac.sourceforge.net/pleac_haskell/index.html

...

a neat site for cookbook-style problem solving

What I've always found funny about pleac is that none of the examples are actually Haskell, but some weird Haskell-with-oo-features. Does anyone know what language it is?

Here are some examples:

password = [1..8].mapM (\_ -> rand (0, chars.length -1) >>> (chars!))

-- in haskell, regexp are first class, then can be appended, sometimes easier to read m0' s = .... (s ==~ dec_number) ....

They are actually Haskell, but notice the appendix: http://pleac.sourceforge.net/pleac_haskell/a1102.html It's Haskell with a completely bizarre prelude. No real new features were added to the language itself. Replacing composition with reverse function application is a waste of operator symbols. Personally, if I was going to change (.), it would be to define it as fmap, which (as a number of people, myself included, have pointed out) together with the instance of Functor for ((->) e) would generalise ordinary composition, map, liftM, etc. - Cale