match groups in search syntax about pattern HOT 5 CLOSED

The latest revision has support for match groups, using the { } control characters:

>>> from pattern.search import search
>>> from pattern.en import Sentence, parse
>>> s = Sentence(parse("There is a red ball", lemmata=True))
>>> m = search("There be DT {JJ? NN}", s)
>>> print m[0].group(0).string
>>> print m[0].group(1).string

"There is a red ball"
"red ball"

Match.group(0) is the full pattern, Match.group(1) is the first subgroup. Note that ? is now used for optional constraints. The reason for using { } for groups is that ( ) will also still work for optional constraints, but it is now deprecated. In future versions, { } will then gradually switch to ( ), as in regex syntax.

An example is included in the latest revision. Unit tests are also included but let me know if you run in to any bugs.

from pattern.

That sounds great. How should I be grabbing the latest version? It's still 2.3. here: http://www.clips.ua.ac.be/pages/pattern should I be checking out of github

from pattern.

You can use the github revision, the new 2.4 will be on the CLiPS website in a couple of days.

from pattern.

Thanks - I might hold off for the 2.4 so that I can peg against a particular major revision in my release notes

from pattern.

I couldn't wait - I pulled out from git, but didn't seem to work for me :-(

Enthought Python Distribution (EPD) free version -- www.enthought.com
Version: 7.3-1 (32-bit)
(type 'upgrade' or see www.enthought.com/epd/upgrade to get the full EPD)

Python 2.7.3 |EPD_free 7.3-1 (32-bit)| (default, Apr 12 2012, 11:28:34)
[GCC 4.0.1 (Apple Inc. build 5493)] on darwin
Type "credits", "demo" or "enthought" for more information.

from pattern.search import search
from pattern.en import Sentence, parse
s = Sentence(parse("There is a red ball", lemmata=True))
m = search("There be DT {JJ? NN}", s)
print m[0].group(0).string
Traceback (most recent call last):
File "", line 1, in
IndexError: list index out of range
print m[0].group(1).string
Traceback (most recent call last):
File "", line 1, in
IndexError: list index out of range

Here's how I pulled from git:

git clone git://github.com/clips/pattern.git

I then updated my python path ... any ideas?

from pattern.