hedn

EDN parsing and encoding

Version on this page:0.2.0.1@rev:1
LTS Haskell 14.10:0.2.0.1@rev:1
Stackage Nightly 2019-09-21:0.2.0.1@rev:1
Latest on Hackage:0.3.0.0

See all snapshots hedn appears in

BSD-3-Clause licensed by Alexander Bondarenko
Maintained by aenor.realm@gmail.com

Module documentation for 0.2.0.1

This version can be pinned in stack with:hedn-0.2.0.1@sha256:5fc70a561392a7b740a1e062d358bcbe6affc9501b901b8327e104b9c0fe23f3,2345

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"
  value <- EDN.parseText "example.edn" edn
  print value
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) ])
                 )
               ]))
     ])

Changes

Change Log

All notable changes to this project will be documented in this file. This project adheres to Semantic Versioning.

0.2.0.1 - 2019-02-18

Changed

  • uuid swapped for lighter uuid-types

Added

  • tintin-generated documentation

0.2.0.0 - 2019-01-18

Changed

  • Complete rewrite in Megaparsec.
  • Text types changed to, well, Text
  • Document with prettyprinter
  • Test suite changed to Hedgehog
  • Code repository moved to GitLab

Removed

  • GHC < 8.0 (Stackage LTS < 7) aren’t supported due to Semigroup-Monoid changes.

0.1.9.1 - 2018-12-03

Changed

  • GHC 8.4 compatibility fixes

0.1.9.0 - 2018-04-05

Fixed

  • < and > are valid for symbols and keywords.

0.1.8.2 - 2016-05-14

Changed

  • Use compat wrappers to handle GHC from 7.4 to 8.0.

Removed

  • Drop obsolete developer flag.

0.1.8.1 - 2015-10-08

Fixed

  • Update dependencies, fix deprecations, time-1.5 compat.

0.1.8.0 - 2013-11-29

Fixed

  • Use utf8-string parsing for unicode literals.
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