DESCRIPTION
===========

pydsl is a language library written in python. It provides some verbs for Grammars.

    from pydsl.File.BNF import load_bnf_file
    grammardefinition = loand_bnf_file('myfile.bnf')
    grammardefinition.alphabet # Returns the alphabet used by this grammar
    grammardefinition.minsize
    grammardefinition.maxsize 
    grammardefinition.enumerate # Returns a generator that generates every accepted word

    from pydsl.Checker import check
    check(grammardefinition,'mystring') # returns True or False

    from pydsl.Parser import parse
    parse(grammardefinition,'mystring') # returns a ParseTree

    from pydsl.Extract import extract
    extract(grammardefinition,'abcmystringabc') # returns ('mystring',3,11)


INSTALLATION
============
 * disttools:
   * python3 setup.py install
 * pip:
   * pip install pydsl

CONTRIBUTIONS
=============
 * check existing issues: https://github.com/nesaro/pydsl
 * read the project's blog: http://pydsl.blogspot.co.uk
 * pull requests :)


REQUIREMENTS
============
 * python >= 2.7
 * optional: ply library ( http://www.dabeaz.com/ply/ )

ABOUT
=====
Copyright (C) 2008-2014 Nestor Arocha (nesaro@gmail.com)
