Hackage :: [Package]

Z-Data: Array, vector and text

[ bsd3, data, library ] [ Propose Tags ]
Versions [RSS] 0.1.0.0, 0.1.1.0, 0.1.2.0, 0.1.3.0, 0.1.3.1, 0.1.4.0, 0.1.4.1, 0.1.4.2, 0.1.5.0, 0.1.6.0, 0.1.6.1, 0.1.7.0, 0.1.7.1, 0.1.7.2, 0.1.8.0, 0.1.9.0, 0.1.9.1, 0.2.0.0, 0.3.0.0, 0.4.0.0, 0.5.0.0, 0.6.0.0, 0.6.1.0, 0.7.0.0, 0.7.1.0, 0.7.2.0, 0.7.3.0, 0.7.4.0, 0.8.0.0, 0.8.1.0, 0.8.2.0, 0.8.3.0, 0.8.4.0, 0.8.5.0, 0.8.6.0, 0.8.6.1, 0.8.7.0, 0.8.8.0, 0.9.0.0, 1.0.0.0, 1.0.0.1, 1.1.0.0, 1.2.0.0, 1.2.1.0, 1.3.0.0, 1.3.0.1, 2.0.0.0, 2.0.0.1, 2.0.0.2, 2.0.1.0 (info)
Change log ChangeLog.md
Dependencies base (>=4.12 && <5.0), case-insensitive (>=1.2 && <1.3), deepseq (>=1.4 && <1.5), ghc-prim (>=0.6.1 && <0.6.2), hashable (>=1.3 && <1.4), integer-gmp (>=0.2 && <1.1), integer-simple (>=0.1 && <0.5), primitive (>=0.7.1 && <0.7.2), QuickCheck (>=2.10), scientific (>=0.3 && <0.4), tagged (>=0.8 && <0.9), template-haskell (>=2.16 && <2.17), unordered-containers (>=0.2 && <0.3) [details]
License BSD-3-Clause
Copyright (c) Dong Han, 2017-2020 (c) Tao He, 2017-2020
Author Dong Han, Tao He
Maintainer winterland1989@gmail.com
Category Data
Home page https://github.com/haskell-Z/z-data
Bug tracker https://github.com/haskell-Z/z-data/issues
Source repo head: git clone git://github.com/haskell-Z/z-data.git
Uploaded by winterland at 2020-09-19T09:01:52Z
Distributions
Reverse Dependencies 5 direct, 0 indirect [details]
Downloads 16512 total (67 in the last 30 days)
Rating 2.5 (votes: 3) [estimated by Bayesian average]
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Readme for Z-Data-0.1.2.0

[back to package description]

Z-Data

Linux Build Status

This package provides basic data structures and functions:

  • Array, vector(array slice)
  • Text based UTF-8, basic unicode manipulating
  • FFI utilties
  • Parsing and building monad
  • JSON encoding and decoding

Example usage

> import qualified Z.Data.Vector as V
> import qualified Z.Data.Array as A
>
> -- convert from list
> let v = V.pack [1..10] :: V.PrimVector Int  
> -- vector combinators works on arrays as well
> let a = V.pack [1..10] :: A.Array Int   
> -- slicing vector(slice) is O(1)
> V.take 3 v                              
[1,2,3]
-- slicing array is not O(1)
> V.drop 3 a                              
fromListN 7 [4,5,6,7,8,9,10]
>
> V.intersperse 10 v
[1,10,2,10,3,10,4,10,5,10,6,10,7,10,8,10,9,10,10]
>
> V.mergeSort (V.intersperse 10 v) 
[1,2,3,4,5,6,7,8,9,10,10,10,10,10,10,10,10,10,10]
> -- Generic KMP search on vectors
> V.indices (V.singleton 10) (V.intersperse 10 v) True   
[1,3,5,7,9,11,13,15,17,18]
>
> -- quoter for writing numeric vector literals
> :set -XQuasiQuotes 
> :t [V.vecWord|1,2,3,4,5,4,3,2,1|]                     
[V.vecWord|1,2,3,4,5,4,3,2,1|] :: V.PrimVector Word
>
> import qualified Z.Data.Builder as B
> import qualified Z.Data.Text as T
> :set -XOverloadedStrings 
>
> -- Builders can be used with OverloadedStrings
> B.buildBytes $ "builders: " >> B.hex (3 :: Word16) >> B.comma >> B.double 1.2345678
[98,117,105,108,100,101,114,115,58,32,48,48,48,51,44,49,46,50,51,52,53,54,55,56]
> 
> T.validate . B.buildBytes $ "builders: " >> B.hex (3 :: Word16) >> B.comma >> B.double 1.2345678
"builders: 0003,1.2345678"
>
> import qualified Z.Data.JSON as JSON
> import GHC.Generics
> 
> JSON.parseValue "[1,2,3,4,5]"
([],Right (Array [Number 1.0,Number 2.0,Number 3.0,Number 4.0,Number 5.0]))
>
> -- JSON module support deriving through Generic
> set -XDeriveAnyClass -XDeriveGeneric
> data Foo = Foo {foo :: Double} deriving (JSON.FromValue, JSON.ToValue, JSON.EncodeJSON, Generic)
> JSON.toValue (Foo 0.01)
Object [("foo",Number 1.0e-2)]
> JSON.encodeText (Foo 0.01)
"{\"foo\":1.0e-2}"

Dev guide

  • GHC(>=8.10.2)
  • cabal-install(>=3.4) 
# get code
git clone --recursive git@github.com:haskell-Z/z-data.git 
cd z-data
# build
cabal build
# test
cabal run Z-Data-Test
# install 
cabal install
# generate document
cabal haddock