Roundup Robot added the comment:
New changeset b78195af96f5 by Serhiy Storchaka in branch 'default':
Issues #814253, #9179: Group references and conditional group references now
https://hg.python.org/cpython/rev/b78195af96f5
New changeset 5387095b8675 by Serhiy Storchaka in branch '2.7':
Issues
Roundup Robot added the comment:
New changeset fac649bf2d10 by Serhiy Storchaka in branch '2.7':
Issues #814253, #9179: Group references and conditional group references now
https://hg.python.org/cpython/rev/fac649bf2d10
New changeset 9fcf4008b626 by Serhiy Storchaka in branch '3.4':
Issues
Roundup Robot added the comment:
New changeset 0e2c7d774df3 by Serhiy Storchaka in branch '2.7':
Silence the failure of test_pyclbr after adding a property in sre_parse
https://hg.python.org/cpython/rev/0e2c7d774df3
New changeset 246c9570a757 by Serhiy Storchaka in branch '3.4':
Silence the
Serhiy Storchaka added the comment:
Now group references to groups with fixed width are supported in lookbehind
assertions.
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assignee: effbot - serhiy.storchaka
resolution: - fixed
stage: patch review - resolved
status: open - closed
versions: +Python 2.7, Python 3.4, Python 3.5
Serhiy Storchaka added the comment:
The patch for issue9179 fixes this issue too.
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nosy: +serhiy.storchaka
superseder: - Lookback with group references incorrect (two issues?)
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Changes by Mark Lawrence breamore...@yahoo.co.uk:
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nosy: -BreamoreBoy
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http://bugs.python.org/issue814253
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Mark Lawrence added the comment:
Can this be closed as a result of work done via #2636 or must it remain open?
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http://bugs.python.org/issue814253
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Matthew Barnett added the comment:
Issue #2636 resulted in the regex module, which supports variable-length
look-behinds.
I don't know how much work it would take even to put a limited fixed-length
look-behind fix for this into the re module, so I'm afraid the issue must
remain open.
Mark Lawrence breamore...@yahoo.co.uk added the comment:
I've deliberately changed the stage to patch review and the version to 3.2 to
highlight the fact that a lot of work will be needed to get the new regex
engine into the standard library. Feel free to change these as is seen fit.
Changes by Terry J. Reedy tjre...@udel.edu:
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versions: +Python 2.7 -Python 2.3, Python 2.4, Python 2.5
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http://bugs.python.org/issue814253
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Matthew Barnett pyt...@mrabarnett.plus.com added the comment:
As part of issue #2636 group references now work in lookbehinds.
However, your example:
(?=(...)\1)abc
will fail but:
(?=\1(...))abc
will succeed.
Why? Well, in lookbehinds it searches backwards. In the first regex it
Changes by Fredrik Lundh:
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type: - behavior
versions: +Python 2.4, Python 2.5
Tracker [EMAIL PROTECTED]
http://bugs.python.org/issue814253
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