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
GitHub - k-bx/owlcloud: OwnCloud for owls done via The Microservice Architecture
10.05.2016 NOTE! The post was updated with the latest servant-0.7 code, but some bugs might be still left. PRs are welcome! Microservices were becoming a hot thing few years ago and it seems they are still on the rise. It always surprised me how brave developers are: at one moment they just decide to introduce hundreds contracts of network-separated APIs without having any static proof that it "wo
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
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関数型プãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªž Haskellã®Mac用IDE「Haskell for Macã€ã‚’æä¾›ã—ã¦ã„ãŸã ã„ãŸã®ã§ä½¿ã£ã¦ã¿ã¾ã—ãŸã€‚詳細ã¯ä»¥ä¸‹ã‹ã‚‰ã€‚ 昨日 関数型プãƒã‚°ãƒ©ãƒŸãƒ³ã‚°è¨€èªž Haskell ã®Mac用ãƒã‚¤ãƒ†ã‚£ãƒ–IDEã¨ãªã‚‹â€Haskell for Macâ€ï¼ˆMac App Storeã§ã®ç™»éŒ²åã¯Haskell）ãŒãƒªãƒªãƒ¼ã‚¹ã•ã‚Œã¾ã—ãŸãŒã€ã“ã®è¨˜äº‹ã‚’書ã„ãŸã¨ã“ã‚開発者ã®Manuel Chakravartyã•ã‚“ã‹ã‚‰ãƒ—ãƒãƒ¢ãƒ¼ã‚·ãƒ§ãƒ³ã‚³ãƒ¼ãƒ‰ã‚’é€ã£ã¦ã„ãŸã ã„ãŸã®ã§åˆå¿ƒè€…ãªãŒã‚‰ä½¿ç”¨ã—ã¦ã¿ã¾ã—ãŸã€‚ Overview Haskell for Macã®ãƒ¡ã‚¤ãƒ³ã‚¦ã‚£ãƒ³ãƒ‰ã‚¦ã¯â€Project Navigatorâ€, “Editorâ€, “Playgroundâ€, “Consoleâ€ã‚¨ãƒªã‚¢ã‹ã‚‰æ§‹æˆã•ã‚Œã¦ãŠã‚Šã€å„エリアã¯è¡¨ç¤ºãƒ»éžè¡¨ç¤ºãŒå¯èƒ½ã§æ›¸ã„ãŸã‚³ãƒ¼ãƒ‰ã¯Appleã®SpriteKitを利用ã—ã¦ç›´ãã«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ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã‹ã‚‰äºˆæ¸¬å¯èƒ½ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã¸ :: Igreque -> Info
関数型プãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã‹ã‚‰äºˆæ¸¬å¯èƒ½ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã¸ by Yuji Yamamoto on July 25, 2015 ãªã‚“ã ã‹èˆˆã«ä¹—ã£ã¦ããŸã®ã§ã€ç§ã‚‚ãƒã‚¨ãƒ ã‚ã„ãŸã‚‚ã®ã‚’書ã„ã¦ã¿ã‚ˆã†ã¨æ€ã„ã¾ã™â™ª ã“ã®ã‚·ãƒªãƒ¼ã‚ºã®ç›®æ¬¡ã¯ã“ã¡ã‚‰ è¦ç´„: ãƒã‚¨ãƒ ãªã‚“ã¦ã†ã‚“ã–ã‚Šãªäººã¸ 「HaskellãŒé–¢æ•°åž‹ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã®çŽ‹é“ã よã€ã¨ã„ã†ç†è§£ã¯ã€èª¤è§£ã®ã‚‚ã¨ã€‚ 今後ã“ã®ã‚·ãƒªãƒ¼ã‚ºã§è¨€ã†ã€Œé–¢æ•°åž‹ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã€ã¨ã¯ã€ 「純粋ãªé–¢æ•°ã€ã‚’主ã«ä½¿ç”¨ã—ã¦è¡Œã†ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã®ã“ã¨ã€‚ Haskellã®æœ¬å½“ã«ã‚ˆã„ã¨ã“ã‚㯠「プãƒã‚°ãƒ©ãƒ ã®æŒ¯ã‚‹èˆžã„ã‚’ã€ã‚³ãƒ¼ãƒ‰ã‚’実行ã›ãšã€èªã‚“ã ã ã‘ã§äºˆæ¸¬ã§ãるよã†ã«ã™ã‚‹ã€ã¨ã„ã†ç‚¹ã€‚ å‹•æ©Ÿ: ãªãœæ›¸ãã®ã‹ ã“ã“ã§ã¯ã€ç§ãŒHaskellã‚’ãªãœå¥½ã‚€ã®ã‹ã€ ã„ã‚ゆる「関数型プãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã€ã¨ã®é–¢ä¿‚ã«è§¦ã‚Œã¤ã¤èª¬æ˜Žã™ã‚‹ã“ã¨ã§ã€è€ƒãˆã‚’å°‘ã—ãšã¤ã¾ã¨ã‚ãŸã„。 一ã¤ã®è¨˜äº‹ã«ã¯åŽã¾ã‚‰ãªã„ã®ã§ã€è¤‡æ•°ã®è¨˜äº‹ã«åˆ†ã‘ã¦ã‚·ãƒªãƒ¼ã‚ºã¨ã™ã‚‹ã€‚
Property Based Testing - scalapropsã¨scalacheckã¨ãã®ä»–色々
class: center, middle # Property Based Testing scalapropsã¨scalacheckã¨ãã®ä»–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
FRPNowã§FizzBuzzãªã© - Qiita
{-# 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) <- sampleNow (b esA) loop cbA esB return evE where loop cbA esB = do eys <- sampleNow (nextAll
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
GitHub - nikita-volkov/laika: Minimalistic type-checked compile-time template engine
Copyright (c) 2015, Nikita Volkov Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the So
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GitHub - viskell/viskell: Visual programming meets Haskell
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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
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