safe: Library of safe (exception free) functions
A library wrapping Prelude
/Data.List
functions that can throw exceptions, such as head
and !!
.
Each unsafe function has up to four variants, e.g. with tail
:
tail :: [a] -> [a]
, raises an error ontail []
.tailMay :: [a] -> Maybe [a]
, turns errors intoNothing
.tailDef :: [a] -> [a] -> [a]
, takes a default to return on errors.tailNote :: String -> [a] -> [a]
, takes an extra argument which supplements the error message.tailSafe :: [a] -> [a]
, returns some sensible default if possible,[]
in the case oftail
.
This package is divided into three modules:
Safe contains safe variants of
Prelude
andData.List
functions.Safe.Foldable contains safe variants of
Foldable
functions.Safe.Exact creates crashing versions of functions like
zip
(errors if the lists are not equal) andtake
(errors if there are not enough elements), then wraps them to provide safe variants.
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- safe-0.3.21.tar.gz [browse] (Cabal source package)
- Package description (revised from the package)
Note: This package has metadata revisions in the cabal description newer than included in the tarball. To unpack the package including the revisions, use 'cabal get'.
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Versions [RSS] | 0.2, 0.3, 0.3.1, 0.3.2, 0.3.3, 0.3.4, 0.3.5, 0.3.6, 0.3.7, 0.3.8, 0.3.9, 0.3.10, 0.3.11, 0.3.12, 0.3.13, 0.3.14, 0.3.15, 0.3.16, 0.3.17, 0.3.18, 0.3.19, 0.3.20, 0.3.21 (info) |
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Change log | CHANGES.txt |
Dependencies | base (>=4.9 && <5) [details] |
License | BSD-3-Clause |
Copyright | Neil Mitchell 2007-2024 |
Author | Neil Mitchell <ndmitchell@gmail.com> |
Maintainer | Neil Mitchell <ndmitchell@gmail.com> |
Revised | Revision 1 made by NeilMitchell at 2024-02-04T16:45:27Z |
Category | Unclassified |
Home page | https://github.com/ndmitchell/safe#readme |
Bug tracker | https://github.com/ndmitchell/safe/issues |
Source repo | head: git clone https://github.com/ndmitchell/safe.git |
Uploaded | by NeilMitchell at 2024-01-18T16:51:51Z |
Distributions | Arch:0.3.21, Debian:0.3.19, Fedora:0.3.19, FreeBSD:0.3.9, LTSHaskell:0.3.21, NixOS:0.3.21, Stackage:0.3.21, openSUSE:0.3.21 |
Reverse Dependencies | 396 direct, 4730 indirect [details] |
Downloads | 212240 total (353 in the last 30 days) |
Rating | 2.25 (votes: 2) [estimated by Bayesian average] |
Your Rating | |
Status | Docs available [build log] Last success reported on 2024-01-18 [all 1 reports] |