intro: Safe and minimal prelude

[ library, mit, prelude ] [ Propose Tags ] [ Report a vulnerability ]

Intro is a modern Prelude which provides safe alternatives for most of the partial functions and follows other best practices, e.g., Text is preferred over String. For String overloading the extension OverloadedStrings should be used. Container types and Monad transformers are provided.

Most important - this Prelude tries to keep things simple. This means it just reexports from base and commonly used libraries and adds only very few additional functions. Everything is exported explicitly to provide a stable interface and to improve the quality of the documentation.


[Skip to Readme]

Modules

[Index] [Quick Jump]

Downloads

Maintainer's Corner

Package maintainers

For package maintainers and hackage trustees

Candidates

  • No Candidates
Versions [RSS] 0.0.1.0, 0.0.2.0, 0.0.2.1, 0.0.2.2, 0.1.0.0, 0.1.0.1, 0.1.0.2, 0.1.0.3, 0.1.0.4, 0.1.0.5, 0.1.0.6, 0.1.0.7, 0.1.0.8, 0.1.0.9, 0.1.0.10, 0.2.0.0, 0.2.0.1, 0.2.0.2, 0.3.0.0, 0.3.0.1, 0.3.1.0, 0.3.2.0, 0.4.0.0, 0.5.0.0, 0.5.1.0, 0.5.2.0, 0.5.2.1, 0.6.0.0, 0.6.0.1, 0.7.0.0, 0.8.0.0, 0.9.0.0
Dependencies base (>=4.8 && <5.0), bytestring (>=0.9 && <0.11), containers (>=0.5 && <0.7), extra (>=1.5.1 && <2.0), hashable (>=1.2.5 && <2.0), mtl (>=2.2 && <2.3), safe (>=0.3.18 && <0.4), text (>=0.7 && <1.3), transformers (>=0.4 && <0.6), unordered-containers (>=0.2 && <0.3), writer-cps-mtl (>=0.1.1.2 && <0.2) [details]
Tested with ghc ==8.6.5, ghc ==8.8.1, ghc ==8.10.1
License MIT
Copyright 2016-2017 Daniel Mendler
Author Daniel Mendler <mail@daniel-mendler.de>
Maintainer Daniel Mendler <mail@daniel-mendler.de>
Category Prelude
Home page https://github.com/minad/intro#readme
Bug tracker https://github.com/minad/intro/issues
Source repo head: git clone https://github.com/minad/intro
Uploaded by minad at 2020-08-28T12:01:20Z
Distributions
Reverse Dependencies 2 direct, 1 indirect [details]
Downloads 18607 total (38 in the last 30 days)
Rating (no votes yet) [estimated by Bayesian average]
Your Rating
  • λ
  • λ
  • λ
Status Docs available [build log]
Last success reported on 2020-08-28 [all 1 reports]

Readme for intro-0.9.0.0

[back to package description]

Intro: Safe and minimal Haskell Prelude

Hackage Build Status

Intro is a modern Prelude which provides safe alternatives for most of the partial functions and follows other best practices, e.g., Text is preferred over String. For String overloading the extension 'OverloadedStrings' should be used. Container types and Monad transformers are provided.

Most important - this Prelude tries to keep things simple and minimal. This means it just reexports from base and commonly used libraries and adds only very few additional functions.

List of design decisions:

  • Keep everything at one place
  • Conservative extension over the base Prelude
  • Rely only on common additional libraries
  • Avoid writing custom functions
  • Export everything explicitly to provide a stable interface and good documentation
  • Export only total functions or provide safe alternatives (Very few exceptions like div etc.)
  • Prefer Text over String, provide ConvertString and EncodeString
  • Provide monad transformers
  • Provide container types
  • Prefer generic functions
  • Debugging functions, like 'Intro.Trustworthy.trace' and 'undefined' are available but produce compile time warnings
  • Replace error with panic
  • Compatibility with unqualified import of Control.Lens and Optics