Happy 1.19.4

Free and open source parser generator for Haskell

Happy is a 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 entry points to a single grammar and several Happy parsers in the same program.

Happy can work in conjunction with a lexical analyser supplied by the user (either hand-written or generated by another program), or it can parse a stream of characters directly (but this isn't practical in most cases).


last updated on:
July 15th, 2014, 4:03 GMT
file size:
160 KB
price:
FREE!
developed by:
Simon Marlow
license type:
Freeware
operating system(s):
Mac OS X
binary format:
Universal Binary
category:
Home \ Developer Tools

FREE!

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1 Screenshot
Happy - The Terminal window presenting the usage of the application
What's New in This Release:
  • Fix for GHC 7.10 (Applicative/Monad, #19, #21)
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