I love the concise syntax and useful examples. Thank you!
On Wed, Sep 28, 2011 at 12:53 PM, Hideyuki Tanaka
Hello, all.
I have released 'Peggy' a new parser generator . It is based on Parsing Expression Grammer (PEG) [1], and generates efficient packrat parsers.
# Where to get it
* Hackage page (http://hackage.haskell.org/package/peggy) * github repository (https://github.com/tanakh/peggy). * Some documents are at (http://tanakh.github.com/Peggy/).
# Advantage
* Simple and Powerful syntax * No shift/reduce conflict * Unlimited look-ahead * You don't need to prepare separated Scanner * Linear time complexity * Based on modern Haskell ecosystem (bytestring, text, ListLike, Monads, etc...) * Support to use and generate Quasi Quoters
# Examples
Here are few example of parsers:
* http://tanakh.github.com/Peggy/example.html * https://github.com/tanakh/Peggy/blob/master/example/Json.hs
There is a self defined parser of peggy syntax, used for bootstrapping:
* https://github.com/tanakh/Peggy/blob/master/bootstrap/peggy.peggy
Please try it and give me feedbacks! Thanks,
[1]: http://en.wikipedia.org/wiki/Parsing_expression_grammar
-- Hideyuki Tanaka
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