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| author | R David Murray <rdmurray@bitdance.com> | 2014-03-10 00:52:28 (GMT) |
|---|---|---|
| committer | R David Murray <rdmurray@bitdance.com> | 2014-03-10 00:52:28 (GMT) |
| commit | b5ac4d7eaab34ee4cd8697c9bdea8e24838374b4 (patch) | |
| tree | 27d4c1d1ab7e8c35361d0b57f75d324929b7743a | |
| parent | ced82ef752ce5f18c4634d3f39d682977a05e8d0 (diff) | |
| download | cpython-b5ac4d7eaab34ee4cd8697c9bdea8e24838374b4.zip cpython-b5ac4d7eaab34ee4cd8697c9bdea8e24838374b4.tar.gz cpython-b5ac4d7eaab34ee4cd8697c9bdea8e24838374b4.tar.bz2 | |
whatsnew: expand re.fullmatch entry with the motivation for the feature.
| -rw-r--r-- | Doc/whatsnew/3.4.rst | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/Doc/whatsnew/3.4.rst b/Doc/whatsnew/3.4.rst index 9e87b42..33461eb 100644 --- a/Doc/whatsnew/3.4.rst +++ b/Doc/whatsnew/3.4.rst @@ -1172,9 +1172,12 @@ affect the behaviour of :func:`help`. re -- -Added :func:`re.fullmatch` function and :meth:`regex.fullmatch` method, -which anchor the pattern at both ends of the string to match. -(Contributed by Matthew Barnett in :issue:`16203`.) +New :func:`~re.fullmatch` function and :meth:`.regex.fullmatch` method anchor +the pattern at both ends of the string to match. This provides a way to be +explicit about the goal of the match, which avoids a class of subtle bugs where +``$`` characters get lost during code changes or the addition of alternatives +to an existing regular expression. (Contributed by Matthew Barnett in +:issue:`16203`.) The repr of :ref:`regex objects <re-objects>` now includes the pattern and the flags; the repr of :ref:`match objects <match-objects>` now |