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hedn: EDN parsing and encoding

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A EDN parsing and encoding library.

Based on "specs" published at https://github.com/edn-format/edn.

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Versions [RSS] 0.1.3.0, 0.1.4.1, 0.1.5.0, 0.1.5.1, 0.1.5.2, 0.1.6.0, 0.1.7.0, 0.1.8.1, 0.1.8.2, 0.1.9.0, 0.1.9.1, 0.2.0.0, 0.2.0.1, 0.3.0.0, 0.3.0.1, 0.3.0.2, 0.3.0.3, 0.3.0.4 (info)
Change log CHANGELOG.md
Dependencies base (>=4.9 && <5), containers (>=0.5.7 && <0.8), deepseq (>=1.4 && <2), deriving-compat (>=0.3.6 && <0.7), megaparsec (>=7.0 && <10), parser-combinators (>=1.0 && <2), prettyprinter (>=1.2 && <2), scientific (>=0.3 && <0.4), template-haskell (>=2.11 && <3), text (>=1.2 && <3), time (>=1.6 && <2), uuid-types (>=1.0 && <2), vector (>=0.11 && <1) [details]
Tested with ghc ==8.2.2, ghc ==8.4.4, ghc ==8.6.5, ghc ==8.8.3, ghc ==8.10.4, ghc ==9.0.1, ghc ==9.2.1
License BSD-3-Clause
Copyright (c) 2019 Alexander Bondarenko
Author Alexander Bondarenko
Maintainer aenor.realm@gmail.com
Revised Revision 3 made by AlexanderBondarenko at 2024-11-01T10:40:08Z
Category Data
Source repo head: git clone https://gitlab.com/dpwiz/hedn
Uploaded by AlexanderBondarenko at 2021-11-13T13:27:12Z
Distributions LTSHaskell:0.3.0.4, NixOS:0.3.0.4, Stackage:0.3.0.4
Reverse Dependencies 4 direct, 2 indirect [details]
Downloads 11842 total (18 in the last 30 days)
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Status Docs available [build log]
All reported builds failed as of 2021-11-13 [all 1 reports]

Readme for hedn-0.3.0.4

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Haskell EDN

An EDN parsing and encoding library.

Based on spec and hints published on GitHub.

Hackage: https://hackage.haskell.org/package/hedn

Stackage: https://www.stackage.org/package/hedn

Tutorial: https://dpwiz.gitlab.io/hedn

Examples

AST

(#haskell/edn example/kitchensink ; tagged symbol
 nil ; ugh..
 \space ; character
 "dynamic \"typing\"" ; string
 {:numbers ; keyword
  [42 ; integer
   42.0 ; floating
  ] ; Vector
  :bools
  #{true, false} ; Set (with optional commas)
 } ; Map
) ; List

import qualified Data.EDN as EDN
import qualified Data.Text.IO as Text

main = do
  edn <- Text.readFile "example.edn"
  either error print $ EDN.parseText "example.edn" edn

NoTag
  (List
     [ Tagged "haskell" "edn" (Symbol "example" "kitchensink")
     , NoTag Nil
     , NoTag (Character ' ')
     , NoTag (String "dynamic \"typing\"")
     , NoTag
         (Map
            (fromList
               [ ( NoTag (Keyword "bools")
                 , NoTag
                     (Set (fromList [ NoTag (Boolean False) , NoTag (Boolean True) ]))
                 )
               , ( NoTag (Keyword "numbers")
                 , NoTag (Vec [ NoTag (Integer 42) , NoTag (Floating 42.0) ])
                 )
               ]))
     ])