nh2

#!/usr/bin/env stack
-- stack --resolver lts-8.12 script

-- Run this example with: `stack ParallelConduit.hs`

{-# LANGUAGE BangPatterns #-}
{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE FlexibleContexts #-}

Icelandjack

Reddit discussion.

Disclaimer 1: Type classes are great but they are not the right tool for every job. Enjoy some balance and balance to your balance.

Disclaimer 2: I should tidy this up but probably won’t.

Disclaimer 3: Yeah called it, better to be realistic.

Type classes are a language of their own, this is an attempt to document features and give a name to them.

folone

Scalaz
Symbol	Code	Ascii	Example
η	951	pure	1.η[List]
μ	03BC	join	List(List(1,2,3), nil, List(5,6,7)) μ
∅	2205	zero	∅[Int]
<∅>		empty	<∅>[Option, Int]
∙	2219	contramap	((_:String).length ∙ (_:Int).toString ∙ ((_:Int) + 6))(5)
∘	2218	map	(((_:Int) + 6) ∘ (_:Int).toString ∘ (_:String).length)(5)
∘∘

"map2":https://github.com/scalaz/scalaz/blob/master/core/src/main/scala/scalaz/MA.scala#L326

apeiros

# BEWARE! This code is largely untested and not ready for production!

Result  = Struct.new(:entries, :raw_error, :status)
class Entry
  HeaderUnpackFormat  = "Z100A8A8A8A12A12A8aZ100A6A2Z32Z32A8A8Z155".freeze
  EmptyString         = "".freeze
  OctalFields         = [1,2,3,4,5,6,10,13,14]

  def self.from_stream(io)
    header = io.read(512)