https://github.com/facebook/pyre2

Python wrapper for RE2
https://github.com/facebook/pyre2

Last synced: about 1 month ago
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Python wrapper for RE2

• Host: GitHub
• URL: https://github.com/facebook/pyre2
• Owner: facebook
• License: bsd-3-clause
• Created: 2010-03-16T18:45:15.000Z (over 14 years ago)
• Default Branch: main
• Last Pushed: 2023-11-06T17:01:23.000Z (about 1 year ago)
• Last Synced: 2024-09-29T11:25:31.218Z (about 2 months ago)
• Language: C++
• Homepage:
• Size: 47.9 KB
• Stars: 636
• Watchers: 49
• Forks: 174
• Open Issues: 7
• Metadata Files:
  • Readme: README
  • Contributing: CONTRIBUTING.md
  • License: LICENSE
  • Code of conduct: CODE_OF_CONDUCT.md

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README

        
=====

pyre2

=====

.. contents::

Summary

=======

pyre2 is a Python extension that wraps

`Google's RE2 regular expression library

`_.

It implements many of the features of Python's built-in

``re`` module with compatible interfaces.

New Features

============

* ``Regexp`` objects have a ``fullmatch`` method that works like ``match``,

  but anchors the match at both the start and the end.

* ``Regexp`` objects have

  ``test_search``, ``test_match``, and ``test_fullmatch``

  methods that work like ``search``, ``match``, and ``fullmatch``,

  but only return ``True`` or ``False`` to indicate

  whether the match was successful.

  These methods should be faster than the full versions,

  especially for patterns with capturing groups.

Missing Features

================

* No substitution methods.

* No flags.

* No ``split``, ``findall``, or ``finditer``.

* No top-level convenience functions like ``search`` and ``match``.

  (Just use compile.)

* No compile cache.

  (If you care enough about performance to use RE2,

  you probably care enough to cache your own patterns.)

* No ``lastindex`` or ``lastgroup`` on ``Match`` objects.

Current Status

==============

pyre2 has only received basic testing,

and I am by no means a Python extension expert,

so it is quite possible that it contains bugs.

I'd guess the most likely are reference leaks in error cases.

RE2 doesn't build with fPIC, so I had to build it with

::

  make CFLAGS='-fPIC -c -Wall -Wno-sign-compare -O3 -g -I.'

I also had to add it to my compiler search path when building the module

with a command like

::

  env CPPFLAGS='-I/path/to/re2' LDFLAGS='-L/path/to/re2/obj' ./setup.py build

Contact

=======

You can file bug reports on GitHub, or email the author:

David Reiss .

License

=======

See the ``_ file for more information.