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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

Project details


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