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Connexions project search query parsing library.

Project description

The Connections project query grammar parsing library.

Install

Use setup.py to install cnx-query-grammar:

$ python setup.py install

This creates a script called query_parser.

Usage

>>> from cnxquerygrammar.query_parser import grammar, DictFormater

>>> node_tree = grammar.parse('Some text')
>>> DictFormater().visit(node_tree)
[('text', 'Some'), ('text', 'text')]

>>> node_tree = grammar.parse('"A phrase"')
>>> DictFormater().visit(node_tree)
[('text', 'A phrase')]

>>> node_tree = grammar.parse('author:"John Smith" type:book')
>>> DictFormater().visit(node_tree)
[('author', 'John Smith'), ('type', 'book')]

>>> node_tree = grammar.parse('author:"John Smith" type:book title:" A Title   With Spaces"')
>>> DictFormater().visit(node_tree)
[('author', 'John Smith'), ('type', 'book'), ('title', 'A Title With Spaces')]

Test

To run the tests:

$ python -m unittest discover

License

This software is subject to the provisions of the GNU Affero General Public License Version 3.0 (AGPL). See license.txt for details. Copyright (c) 2013 Rice University

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