Vim and Haskell in 2016
Vim and Haskell in 2016 A couple of years I wrote about Haskell editor tooling and figured this deserved a bit of an update now that the tooling has become mature. So let’s walk through how we install an minimalist Haskell dev environment on Linux. If you don’t want to build the individual components youself, you can just download the source code. $ git clone --recursive https://github.com/sdiehl/
Gogol Preview Release · Brendan Hay
Gogol Preview Release 24 October 2015 As a continuation of my master plan to erode legitimate reasons for management rejection of languages like Haskell (due to say, library availability), I’m pleased to announce the initial release of gogol - a Haskell suite of libraries for interacting with the publicly available Google Service APIs. These libraries are generated from the Google Discovery Servic
Building a Redis clone in Haskell - Honza Pokorny
In this post, we will attempt to make a simplified clone of Redis in Haskell. Here is a set of requirements that we will aim to fullfill: get and set operations Multi-threaded Atomic Redis compatible (implement the Redis protocol) We should be able to use the redis-cli tool to connect to our server and issue commands to it. We are going to omit many features that Redis has. For example, there will
brick
Write terminal user interfaces (TUIs) painlessly with brick! You write an event handler and a drawing function and the library does the rest. module Main where import Brick ui :: Widget () ui = str "Hello, world!" main :: IO () main = simpleMain uiTo get started, see: The README The Brick user guide The demonstration programs in the programs directory This package deprecates vty-ui. [Skip to Readm
関数型プログラミング言語 Haskellの新しいMac用IDE「Haskell for Mac」レビュー。
関数型プログラミング言語 HaskellのMac用IDE「Haskell for Mac」を提供していただいたので使ってみました。詳細は以下から。 昨日 関数型プログラミング言語 Haskell のMac用ネイティブIDEとなる”Haskell for Mac”（Mac App Storeでの登録名はHaskell）がリリースされましたが、この記事を書いたところ開発者のManuel Chakravartyさんからプロモーションコードを送っていただいたので初心者ながら使用してみました。 Overview Haskell for Macのメインウィンドウは”Project Navigator”, “Editor”, “Playground”, “Console”エリアから構成されており、各エリアは表示・非表示が可能で書いたコードはAppleのSpriteKitを利用して直ぐにPlaygroun
Haskell for Mac IDE — Learn Functional Programming with Haskell
Functional programming is a hot topic in programming and the source of the expressiveness and safety of modern languages like Swift, Scala, and Rust. It also is the foundation for innovative web technologies, such as React, Redux, and Elm. Haskell is simply the best way to mastering functional programming and with that all the recent and upcoming technologies based on it. Haskell is also an amazin
Thoughts on Conduits
Summary: I'm growing increasingly fond of the Conduit library. Here I give my intuitions and some hints I'd have found useful. Recently I've been working on converting the Hoogle database generation to use the Conduit abstraction, in an effort to reduce the memory and improve the speed. It worked - database generation has gone from 2Gb of RAM to 320Mb, and time has dropped from several minutes (or
ARoW.info Blog -- Servant, Type Families, and Type-level Everything
Servant is a really nice library for building REST APIs in Haskell. However, it uses advanced GHC features which may not be familiar to some Haskell programmers. In this article, I explain type-level strings, type-level lists, type-level operators, and type families. Finally, I use code from servant-server to explain how these features are used in practice. This article is aimed at people who have
GitHub - billpmurphy/hask: Haskell language features and standard libraries in pure Python.
Hask is a pure-Python, zero-dependencies library that mimics most of the core language tools from Haskell, including: Full Hindley-Milner type system (with typeclasses) that will typecheck any function decorated with a Hask type signature Easy creation of new algebraic data types and new typeclasses, with Haskell-like syntax Pattern matching with case expressions Automagical function currying/part
関数型プログラミングから予測可能プログラミングへ :: Igreque -> Info
関数型プログラミングから予測可能プログラミングへ by Yuji Yamamoto on July 25, 2015 なんだか興に乗ってきたので、私もポエムめいたものを書いてみようと思います♪ このシリーズの目次はこちら 要約: ポエムなんてうんざりな人へ 「Haskellが関数型プログラミングの王道だよ」という理解は、誤解のもと。 今後このシリーズで言う「関数型プログラミング」とは、 「純粋な関数」を主に使用して行うプログラミングのこと。 Haskellの本当によいところは 「プログラムの振る舞いを、コードを実行せず、読んだだけで予測できるようにする」という点。 動機: なぜ書くのか ここでは、私がHaskellをなぜ好むのか、 いわゆる「関数型プログラミング」との関係に触れつつ説明することで、考えを少しずつまとめたい。 一つの記事には収まらないので、複数の記事に分けてシリーズとする。
Property Based Testing - scalapropsとscalacheckとその他色々
class: center, middle # Property Based Testing scalapropsとscalacheckとその他色々 [](https://creativecommons.org/licenses/by/2.1/jp/) --- class: middle <img src="image/xuwei.gif" alt="アイコン" width="100" height="100" /> - twitter [@xuwei_k](https://twitter.com/xuwei_k) - github [@xuwei-k](https://github.com/xuwei-k) - blog <https://x
FRPNowでFizzBuzzなど - Qiita
ICFP2015に論文が出るのだそうで、局所的に話題になっているFRPNowというライブラリ。 ちょっと触ってみたので、感触などレポート。 とりあえずFizzBuzz {-# LANGUAGE MultiWayIf #-} module Main where import Control.FRPNow import Data.Functor ((<$), (<$>)) import Control.Monad (join) streaming :: (EvStream a -> Behavior (EvStream b, Event ())) -> IO a -> ([b] -> IO ()) -> IO () streaming b ioA ioB = runNowMaster $ do (esA, cbA) <- callbackStream (esB, evE) <- sampleN
Nix for Haskell Development on Mac OS X Yosemite
I recently learned of Nix, which bills itself as a “purely functional package manager.” It tries to keep things as self-contained as possible, installing each package into a separate directory in its store. Nix is the basis for a Linux distribution called NixOS, but can also be installed standalone. Nix has great benefits for Haskell development. Due to its insistence on isolation and purity, diff
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GitHub - viskell/viskell: Visual programming meets Haskell
GitHub - k-bx/owlcloud: OwnCloud for owls done via The Microservice Architecture
Haskell News
GitHub - commercialhaskell/stack-ide: Stack-based JSON interface to ide-backend
GitHub - begriffs/haskell-vim-now: One-line Haskell Vim install
GitHub - mikeizbicki/subhask: Type safe interface for working in subcategories of Hask
GitHub - nikita-volkov/laika: Minimalistic type-checked compile-time template engine
