Parser Generator for Haskell
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Happy is a LALR(1) parser generator system for Haskell, similar to the tool `yacc' for C. Like `yacc', it takes a file containing an annotated BNF specification of a grammar and produces a Haskell module containing a parser for the grammar. Happy is flexible: you can have several Happy parsers in the same program, and several entry points to a single grammar. Happy can work in conjunction with a lexical analyser supplied by the user (either hand-written or generated by another program).

Active Releases Overview

Release Latest Released Version Version in Testing
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Upstream Summary



pbrobinson's happy-1.19.5-2.fc22 tagged into f22-updates-testing by pbrobinson (arm)

Details 8 hours ago - 2015-05-23 01:32:31

pbrobinson's happy-1.19.5-2.fc22 completed (arm)

Details 8 hours ago - 2015-05-23 01:27:22

pbrobinson's happy-1.19.5-2.fc22 started building (arm)

Details 9 hours ago - 2015-05-23 01:14:30


petersen's happy-1.19.5-2.fc22 tagged into f22-updates-testing by bodhi

Details 12 hours ago - 2015-05-22 21:27:23


Koji build happy-1.19.5-2.fc22.src.rpm signed with sigkey '8e1431d5'

Details 15 hours ago - 2015-05-22 18:35:53

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This Web Site is licensed under the GNU Affero General Public License. You may get sources for the current running code from these repositories: