Haskell

22/12/2019 – Una nuova sezione di ValCon.it dedicata alla programmazione con Haskell

Haskell is a computer programming language.
In particular, it is a polymorphically statically typed, lazy, purely functional language, quite different from most other programming languages.

The language is named for Haskell Brooks Curry, whose work in mathematical logic serves as a foundation for functional languages.
Haskell is based on the lambda calculus, hence the lambda we use as a logo.

GHC

The Glasgow Haskell Compiler: https://www.haskell.org/ghc/

GHC is a state-of-the-art, open source, compiler and interactive environment for the functional language Haskell

Per eseguire codice Haskell puoi utilizzare

• GHCi – Interfaccia standard
• WinGHCi – Interfaccia amichevole

Nel browser

• codepad.org > Haskell
• CodeWorld – CodeWorld is an environment where you can build and create drawings, animations, and even single-player and multi-player video games using mathematics, using shapes, colors and transformations.
• ideone.com > Haskell
• TryHaskell – An interactive tutorial in your browser
• Tutorialspoint > Codingground > Haskell

GHCi

Interfaccia standard per GHC

Funzioni

• Uso del tasto Tab
• Input multilinea
• Comandi

WinGHCi

Un’interfaccia amichevole per GHCi

WinGhci is a simple GUI to run GHCI (the Glasgow Haskell Interpreter) on Windows, similar to Winhugs.

Funzioni

• Barra dei menu
• Barra degli strumenti
• …

RISORSE ONLINE

• https://github.com/haskell/winghci

Il linguaggio

• Commenti
• Liste | Tuple

Moduli

• Prelude, modulo standard, importato automaticamente
• …

Applicazioni

INPUT/OUTPUT

• Ciao mondo – …

NUMERI

• Segno – Equazione di 2° grado – Triangoli
• Fattoriale – Fibonacci – …

LISTE

• …

RISORSE ONLINE

Haskell.org, sito ufficiale

• HaskellWiki
• TryHaskell, programmare con Haskell nel browser!
• Hackage: The Haskell Package Repository, tutti i moduli, open source, disponibili per Haskell

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Altri

• GitHub > Haskell
• Haskellers – The meeting place for professional Haskell programmers
• Haskell-ITA
• Wikipedia > Haskell
• YouTube > Haskell

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Book / Tutorial / …

• Haskell Wiki Book – Basic, Intermediate, Advanced
• Real World Haskell
• Rosetta Code > Haskell
• School of Haskell – Starting with Haskell, Writing tutorials, Advanced Haskell, To infinity and beyond
• Tutorialspoint > Haskell Tutorial