happy: Happy is a parser generator for Haskell

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Happy is a parser generator for Haskell. Given a grammar specification in BNF, Happy generates Haskell code to parse the grammar. Happy works in a similar way to the yacc tool for C.


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Properties

Versions1.16, 1.17, 1.18, 1.18.1, 1.18.2, 1.18.4, 1.18.5, 1.18.6, 1.18.7, 1.18.8, 1.18.9, 1.18.10, 1.18.11, 1.19.0, 1.19.1, 1.19.2, 1.19.3, 1.19.4, 1.19.5, 1.19.6, 1.19.7, 1.19.8, 1.19.9, 1.19.9
Change logCHANGES
Dependenciesarray, base (<5), containers (>=0.4.2), mtl (>=2.2.1) [details]
LicenseBSD-2-Clause
Copyright(c) Andy Gill, Simon Marlow
AuthorAndy Gill and Simon Marlow
MaintainerSimon Marlow <marlowsd@gmail.com>
CategoryDevelopment
Home pagehttps://www.haskell.org/happy/
Bug trackerhttps://github.com/simonmar/happy/issues
Source repositoryhead: git clone https://github.com/simonmar/happy.git
Executableshappy
UploadedSun Feb 4 16:17:54 UTC 2018 by SimonMarlow

Flags

NameDescriptionDefaultType
small_base

Deprecated. Does nothing.

EnabledAutomatic

Use -f <flag> to enable a flag, or -f -<flag> to disable that flag. More info

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Readme for happy-1.19.9

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Happy

Happy is a parser generator for Haskell 98 (and later).

Build Status

Happy is built using Cabal. First install GHC, then:

  $ cabal configure
  $ cabal build
  $ cabal install

Complete documentation can be found in the directory 'doc', in DocBook XML format. To format the documentation, the DocBook-Tools suite (see http://wiki.docbook.org/DocBookTools) provides all the bits & pieces you need. Alternatively, pre-formatted documentation is available from Happy's homepage (URL above).

The directory 'examples' contains some example parsers that use Happy.

For information on copying and distributing this program, see the file LICENSE in this directory.

Bugs should be reported at: https://github.com/simonmar/happy/issues

Happy Parsing!

Simon.