Serhiy Storchaka
821a9d146b
bpo-30340: Enhanced regular expressions optimization. ( #1542 )
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This increased the performance of matching some patterns up to 25 times.
2017-05-14 08:32:33 +03:00
Serhiy Storchaka
305ccbe27e
bpo-30298: Weaken the condition of deprecation warnings for inline modifiers. ( #1490 )
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Now allowed several subsequential inline modifiers at the start of the
pattern (e.g. '(?i)(?s)...'). In verbose mode whitespaces and comments
now are allowed before and between inline modifiers (e.g.
'(?x) (?i) (?s)...').
2017-05-10 06:05:20 +03:00
Serhiy Storchaka
662cef66d7
Issue #25953 : re.sub() now raises an error for invalid numerical group
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reference in replacement template even if the pattern is not found in
the string. Error message for invalid group reference now includes the
group index and the position of the reference.
Based on patch by SilentGhost.
2016-10-23 12:11:19 +03:00
Serhiy Storchaka
abf275af58
Issue #22493 : Warning message emitted by using inline flags in the middle of
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regular expression now contains a (truncated) regex pattern.
Patch by Tim Graham.
2016-09-17 01:29:58 +03:00
Serhiy Storchaka
bd48d27944
Issue #22493 : Inline flags now should be used only at the start of the
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regular expression. Deprecation warning is emitted if uses them in the
middle of the regular expression.
2016-09-11 12:50:02 +03:00
Serhiy Storchaka
d65cd091e9
Issue #28070 : Fixed parsing inline verbose flag in regular expressions.
2016-09-11 01:39:01 +03:00
Serhiy Storchaka
be9a4e5c85
Issue #433028 : Added support of modifier spans in regular expressions.
2016-09-10 00:57:55 +03:00
Serhiy Storchaka
9bd85b83f6
Issue #27030 : Unknown escapes consisting of ``'\'`` and ASCII letter in
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regular expressions now are errors.
2016-06-11 19:15:00 +03:00
Serhiy Storchaka
a01a144aab
Issue #26475 : Fixed debugging output for regular expressions with the (?x) flag.
2016-03-06 09:15:47 +02:00
Serhiy Storchaka
b5d0a21553
Issue #25554 : Got rid of circular references in regular expression parsing.
2015-11-05 17:49:26 +02:00
Serhiy Storchaka
485407ce1e
Issue #24580 : Symbolic group references to open group in re patterns now are
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explicitly forbidden as well as numeric group references.
2015-07-18 23:27:00 +03:00
Serhiy Storchaka
07360df481
Issue #14260 : The groupindex attribute of regular expression pattern object
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now is non-modifiable mapping.
2015-03-30 01:01:48 +03:00
Serhiy Storchaka
632a77e6a3
Issue #22364 : Improved some re error messages using regex for hints.
2015-03-25 21:03:47 +02:00
Serhiy Storchaka
15fa1c4ade
Fixed using deprecated escaping in regular expression in _strptime.py (issue23622).
2015-03-25 01:21:50 +02:00
Serhiy Storchaka
a54aae0683
Issue #23622 : Unknown escapes in regular expressions that consist of ``'\'``
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and ASCII letter now raise a deprecation warning and will be forbidden in
Python 3.6.
2015-03-24 22:58:14 +02:00
Serhiy Storchaka
4eea62fd2e
Issues #814253 , #9179 : Group references and conditional group references now
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work in lookbehind assertions in regular expressions.
2015-02-21 10:07:35 +02:00
Serhiy Storchaka
22a309a434
Issue #21032 : Deprecated the use of re.LOCALE flag with str patterns or
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re.ASCII. It was newer worked.
2014-12-01 11:50:07 +02:00
Benjamin Peterson
16e802f4ae
merge 3.4 ( #9179 )
2014-11-30 11:51:16 -05:00
Benjamin Peterson
66323415c7
backout 9fcf4008b626 ( #9179 ) for further consideration
2014-11-30 11:49:00 -05:00
Serhiy Storchaka
ab14088141
Minor code clean up and improvements in the re module.
2014-11-11 21:13:28 +02:00
Serhiy Storchaka
1b2004f059
Fixed error position for the backslash at the end of regex pattern.
2014-11-10 18:28:53 +02:00
Serhiy Storchaka
b99c132bd9
Fixed AttributeError when the regular expression starts from illegal escape.
2014-11-10 14:38:16 +02:00
Serhiy Storchaka
ad446d57a9
Issue #22578 : Added attributes to the re.error class.
2014-11-10 13:49:00 +02:00
Serhiy Storchaka
5f33677219
Merge heads
2014-11-10 10:21:03 +02:00
Raymond Hettinger
df1b699447
Issue #22823 : Use set literals instead of creating a set from a list
2014-11-09 15:56:33 -08:00
Serhiy Storchaka
c7f7d3897e
Issue #22434 : Constants in sre_constants are now named constants (enum-like).
2014-11-09 20:48:36 +02:00
Serhiy Storchaka
6276b32799
Issues #814253 , #9179 : Group references and conditional group references now
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work in lookbehind assertions in regular expressions.
2014-11-07 21:45:17 +02:00
Serhiy Storchaka
84df7fe6a2
Issues #814253 , #9179 : Group references and conditional group references now
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work in lookbehind assertions in regular expressions.
2014-11-07 21:43:57 +02:00
Serhiy Storchaka
e2ccf5608c
Issue #19380 : Optimized parsing of regular expressions.
2014-10-10 11:14:49 +03:00
Serhiy Storchaka
7438e4b56f
Issue 1519638: Now unmatched groups are replaced with empty strings in re.sub()
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and re.subn().
2014-10-10 11:06:31 +03:00
Serhiy Storchaka
9baa5b2de2
Issue #22437 : Number of capturing groups in regular expression is no longer
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limited by 100.
2014-09-29 22:49:23 +03:00
Serhiy Storchaka
c563caf3a2
Issue #22362 : Forbidden ambiguous octal escapes out of range 0-0o377 in
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regular expressions.
2014-09-23 23:22:41 +03:00
Serhiy Storchaka
44dae8bde3
Issue #22423 : Fixed debugging output of the GROUPREF_EXISTS opcode in the re
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module.
2014-09-21 22:47:55 +03:00
Raymond Hettinger
1c99bc84bd
Issue #8343 : Named group error msgs did not show the group name.
2014-06-22 19:47:22 -07:00
Victor Stinner
7fa767e517
Issue #20976 : pyflakes: Remove unused imports
2014-03-20 09:16:38 +01:00
Serhiy Storchaka
9c15ec1ce6
Issue #19365 : Optimized the parsing of long replacement string in re.sub*()
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functions.
2013-10-23 22:27:52 +03:00
Serhiy Storchaka
9d96542b6d
Issue #18647 : Correctly bound calculated min/max width of a subexpression.
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Now max width is MAXREPEAT on 32- and 64-bit platforms when one of
subexpressions is unbounded repetition.
2013-08-19 22:50:54 +03:00
R David Murray
26dfaac9ac
#17341 : Include name in re error message about invalid group name.
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Patch by Jason Michalski.
2013-04-14 13:00:54 -04:00
Georg Brandl
1d472b74cb
Closes #14462 : allow any valid Python identifier in sre group names, as documented.
2013-04-14 11:40:00 +02:00
Serhiy Storchaka
a0eb809995
Issue #13169 : The maximal repetition number in a regular expression has been
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increased from 65534 to 2147483647 (on 32-bit platform) or 4294967294 (on
64-bit).
2013-02-16 16:54:33 +02:00
Serhiy Storchaka
70ca0210e8
Issue #13169 : The maximal repetition number in a regular expression has been
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increased from 65534 to 2147483647 (on 32-bit platform) or 4294967294 (on
64-bit).
2013-02-16 16:47:47 +02:00
Ezio Melotti
adfbb8e8ec
#13899 : merge with 3.2.
2013-01-11 08:43:53 +02:00
Ezio Melotti
fe8e6e7414
#13899 : \A, \Z, and \B now correctly match the A, Z, and B literals when used inside character classes (e.g. [A]). Patch by Matthew Barnett.
2013-01-11 08:32:01 +02:00
Ezio Melotti
68600aff3a
#12759 : merge with 3.2.
2012-11-03 20:33:38 +02:00
Ezio Melotti
0941d9fc64
#12759 : sre_parse now raises a proper error when the name of the group is missing. Initial patch by Serhiy Storchaka.
2012-11-03 20:33:08 +02:00
Antoine Pitrou
463badf06c
Issue #3665 : \u and \U escapes are now supported in unicode regular expressions.
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Patch by Serhiy Storchaka.
2012-06-23 13:29:19 +02:00
Marc-André Lemburg
8f36af7a4c
Normalize the encoding names for Latin-1 and UTF-8 to
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'latin-1' and 'utf-8'.
These are optimized in the Python Unicode implementation
to result in more direct processing, bypassing the codec
registry.
Also see issue11303.
2011-02-25 15:42:01 +00:00
Ezio Melotti
b92ed7cf36
#6509 : fix re.sub to work properly when the pattern, the string, and the replacement were all bytes. Patch by Antoine Pitrou.
2010-03-06 15:24:08 +00:00
Benjamin Peterson
6c940d6159
Merged revisions 66894 via svnmerge from
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svn+ssh://pythondev@svn.python.org/python/trunk
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r66894 | benjamin.peterson | 2008-10-14 17:37:18 -0500 (Tue, 14 Oct 2008) | 1 line
remove set compat cruft
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2008-10-14 23:07:40 +00:00
Antoine Pitrou
fd036451bf
#2834 : Change re module semantics, so that str and bytes mixing is forbidden,
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and str (unicode) patterns get full unicode matching by default. The re.ASCII
flag is also introduced to ask for ASCII matching instead.
2008-08-19 17:56:33 +00:00