kseo

class Reduce t where
  reducer :: (a -> b -> b) -> (t a -> b -> b)
  reducel :: (b -> a -> b) -> (b -> t a -> b)

instance Reduce [] where
  reducer f x z = foldr f z x
  reducel f x z = foldl f x z

toList :: (Reduce f) => f a -> [a]
toList s = s `cons` [] where cons = reducer (:)

kseo

using System;

namespace Option
{
    public abstract class Option<T>
    {
        public abstract T Value { get; }

        public abstract bool IsSome { get; }

kseo

{-# LANGUAGE EmptyDataDecls #-}
module Hello where

import FFI

data Http
data HttpServer
data Request
data Response

kseo

#! /usr/bin/env ocamlscript
Ocaml.ocamlflags := ["-thread"];
Ocaml.packs := [ "core" ]
--
open Core.Std

type term =
  | Ident of string
  | Lambda of string * term
  | Apply of term * term

kseo

module IntMap where

import Data.Bits
import Prelude hiding (lookup)

-- Fast Mergeable lnteger Maps*
-- http://ittc.ku.edu/~andygill/papers/IntMap98.pdf
-- Little-endian implementation

type Key = Int

kseo

import Control.Monad
import Control.Monad.ST
import Data.Array.MArray
import Data.Array.ST
import Data.STRef

import Prelude hiding (id)

data UnionFind s = UnionFind {
    ids:: STUArray s Int Int

kseo

module CombinatorParser where

import Control.Monad
import Data.Char

-- FUNCTIONAL PEARLS: Monadic Parsing in Haskell
-- http://eprints.nottingham.ac.uk/223/1/pearl.pdf

newtype Parser a = Parser { parse :: (String -> [(a, String)]) }

kseo

-- From A tutorial on the enumerator library
-- http://www.mew.org/~kazu/proj/enumerator/
import Control.Applicative
import Control.Monad
import Control.Monad.IO.Class
import Data.Enumerator hiding (map, filter, filterM)
import qualified Data.Enumerator.List as EL
import Data.List
import System.Directory
import System.FilePath

kseo

import qualified Data.ByteString as BS
import qualified Data.ByteString.Internal as BS (c2w, w2c) 
import Data.Enumerator hiding (head)
import qualified Data.Enumerator.Binary as EB
import qualified Data.Enumerator.List as EL
import System.Environment

countLines :: Iteratee BS.ByteString IO Int
countLines = do
	bs <- EL.head