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* gh-94675: Add a regression test for rjsmin re slowdown (GH-94685)Miss Islington (bot)2022-08-031-1/+30
| | | | | | | | | | Adds a regression test for an re slowdown observed by rjsmin. Uses multiprocessing to kill the test after SHORT_TIMEOUT. Co-authored-by: Oleg Iarygin <dralife@yandex.ru> Co-authored-by: Christian Heimes <christian@python.org> (cherry picked from commit fe23c0061d9c72527ad57a8c965d8161b00f500e) Co-authored-by: Miro Hrončok <miro@hroncok.cz>
* gh-91404: Revert "bpo-23689: re module, fix memory leak when a match is ↵Miss Islington (bot)2022-06-171-26/+2
| | | | | | | | | | | | | | | terminated by a signal or allocation failure (GH-32283) (GH-93882) Revert "bpo-23689: re module, fix memory leak when a match is terminated by a signal or memory allocation failure (GH-32283)" This reverts commit 6e3eee5c11b539e9aab39cff783acf57838c355a. Manual fixups to increase the MAGIC number and to handle conflicts with a couple of changes that landed after that. Thanks for reviews by Ma Lin and Serhiy Storchaka. (cherry picked from commit 4beee0c7b0c2cc78a893dde88fd8e34099dcf877) Co-authored-by: Gregory P. Smith <greg@krypto.org>
* gh-92728: Restore re.template, but deprecate it (GH-93161)Miss Islington (bot)2022-05-251-3/+27
| | | | | | | | Revert "bpo-47211: Remove function re.template() and flag re.TEMPLATE (GH-32300)" This reverts commit b09184bf05b07b77c5ecfedd4daa846be3cbf0a9. (cherry picked from commit 16a7e4a0b75080275bf12cfb71d54b01d85099b2) Co-authored-by: Miro Hrončok <miro@hroncok.cz>
* [3.11] gh-90473: Skip tests that don't apply to Emscripten and WASI ↵Christian Heimes2022-05-161-3/+9
| | | | | (GH-92846) (GH-92851) Co-authored-by: Christian Heimes <christian@python.org>
* gh-91760: Deprecate group names and numbers which will be invalid in future ↵Serhiy Storchaka2022-04-301-0/+56
| | | | | | | | (GH-91794) Only sequence of ASCII digits will be accepted as a numerical reference. The group name in bytes patterns and replacement strings could only contain ASCII letters and digits and underscore.
* Simplify testing the warning filename (GH-91868)Serhiy Storchaka2022-04-241-3/+3
| | | The context manager result has the "filename" attribute.
* RE: Add more tests for inline flag "x" and re.VERBOSE (GH-91854)Serhiy Storchaka2022-04-231-5/+27
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* gh-91700: Validate the group number in conditional expression in RE (GH-91702)Serhiy Storchaka2022-04-221-0/+2
| | | | | | In expression (?(group)...) an appropriate re.error is now raised if the group number refers to not defined group. Previously it raised RuntimeError: invalid SRE code.
* gh-90568: Fix exception type for \N with a named sequence in RE (GH-91665)Serhiy Storchaka2022-04-221-0/+4
| | | re.error is now raised instead of TypeError.
* gh-91616: re module, fix .fullmatch() mismatch when using Atomic Grouping or ↵Ma Lin2022-04-191-0/+20
| | | | | | | | | Possessive Quantifiers (GH-91681) These jumps should use DO_JUMP0() instead of DO_JUMP(): - JUMP_POSS_REPEAT_1 - JUMP_POSS_REPEAT_2 - JUMP_ATOMIC_GROUP
* Add more tests for group names and refs in RE (GH-91695)Serhiy Storchaka2022-04-191-15/+41
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* gh-91575: Update case-insensitive matching in re to the latest Unicode ↵Serhiy Storchaka2022-04-181-6/+49
| | | | version (GH-91580)
* bpo-47211: Remove function re.template() and flag re.TEMPLATE (GH-32300)Serhiy Storchaka2022-04-061-3/+3
| | | They were undocumented and never working.
* bpo-23689: re module, fix memory leak when a match is terminated by a signal ↵Ma Lin2022-04-031-2/+26
| | | | or memory allocation failure (GH-32283)
* bpo-47152: Convert the re module into a package (GH-32177)Serhiy Storchaka2022-04-021-5/+31
| | | The sre_* modules are now deprecated.
* bpo-35859: Fix a few long-standing bugs in re engine (GH-12427)Ma Lin2022-03-291-0/+69
| | | | | | | | In rare cases, capturing group could get wrong result. Regular expression engines in Perl and Java have similar bugs. The new behavior now matches the behavior of more modern RE engines: in the regex module and in PHP, Ruby and Node.js.
* bpo-42885: Optimize search for regular expressions starting with "\A" or "^" ↵Serhiy Storchaka2022-03-221-0/+15
| | | | | | | (GH-32021) Affected functions are re.search(), re.split(), re.findall(), re.finditer() and re.sub().
* bpo-47081: Replace "qualifiers" with "quantifiers" in the re module ↵Serhiy Storchaka2022-03-221-5/+5
| | | | | documentation (GH-32028) It is a more commonly used term.
* bpo-433030: Add support of atomic grouping in regular expressions (GH-31982)Serhiy Storchaka2022-03-211-58/+236
| | | | | | | | * Atomic grouping: (?>...). * Possessive quantifiers: x++, x*+, x?+, x{m,n}+. Equivalent to (?>x+), (?>x*), (?>x?), (?>x{m,n}). Co-authored-by: Jeffrey C. Jacobs <timehorse@users.sourceforge.net>
* bpo-47066: Convert a warning about flags not at the start of the regular ↵Serhiy Storchaka2022-03-191-56/+12
| | | | expression into error (GH-31994)
* bpo-39394: Improve warning message in the re module (GH-31988)Serhiy Storchaka2022-03-191-3/+6
| | | | A warning about inline flags not at the start of the regular expression now contains the position of the flag.
* bpo-40280: Skip more tests on Emscripten (GH-31947)Christian Heimes2022-03-171-1/+3
| | | | | | - lchmod, lchown are not fully implemented - skip umask tests - cannot fstat unlinked or renamed files yet - ignore musl libc issues that affect Emscripten
* bpo-43988: Use check disallow instantiation helper (GH-26392)Erlend Egeberg Aasland2021-05-271-5/+5
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* bpo-40736: Improve the error message for re.search() TypeError (GH-23312)Zackery Spytz2021-05-211-0/+6
| | | Include the invalid type in the error message.
* bpo-43916: Apply Py_TPFLAGS_DISALLOW_INSTANTIATION to selected types (GH-25748)Erlend Egeberg Aasland2021-04-301-0/+9
| | | | | | | | | | | | | | | | | | | | | Apply Py_TPFLAGS_DISALLOW_INSTANTIATION to the following types: * _dbm.dbm * _gdbm.gdbm * _multibytecodec.MultibyteCodec * _sre..SRE_Scanner * _thread._localdummy * _thread.lock * _winapi.Overlapped * array.arrayiterator * functools.KeyWrapper * functools._lru_list_elem * pyexpat.xmlparser * re.Match * re.Pattern * unicodedata.UCD * zlib.Compress * zlib.Decompress
* bpo-43908: Make re types immutable (GH-25697)Erlend Egeberg Aasland2021-04-291-0/+12
| | | Co-authored-by: Victor Stinner <vstinner@python.org>
* bpo-38250: [Enum] single-bit flags are canonical (GH-24215)Ethan Furman2021-01-251-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Flag members are now divided by one-bit verses multi-bit, with multi-bit being treated as aliases. Iterating over a flag only returns the contained single-bit flags. Iterating, repr(), and str() show members in definition order. When constructing combined-member flags, any extra integer values are either discarded (CONFORM), turned into ints (EJECT) or treated as errors (STRICT). Flag classes can specify which of those three behaviors is desired: >>> class Test(Flag, boundary=CONFORM): ... ONE = 1 ... TWO = 2 ... >>> Test(5) <Test.ONE: 1> Besides the three above behaviors, there is also KEEP, which should not be used unless necessary -- for example, _convert_ specifies KEEP as there are flag sets in the stdlib that are incomplete and/or inconsistent (e.g. ssl.Options). KEEP will, as the name suggests, keep all bits; however, iterating over a flag with extra bits will only return the canonical flags contained, not the extra bits. Iteration is now in member definition order. If member definition order matches increasing value order, then a more efficient method of flag decomposition is used; otherwise, sort() is called on the results of that method to get definition order. ``re`` module: repr() has been modified to support as closely as possible its previous output; the big difference is that inverted flags cannot be output as before because the inversion operation now always returns the comparable positive result; i.e. re.A|re.I|re.M|re.S is ~(re.L|re.U|re.S|re.T|re.DEBUG) in both of the above terms, the ``value`` is 282. re's tests have been updated to reflect the modifications to repr().
* bpo-1635741: Convert _sre types to heap types and establish module state ↵Erlend Egeberg Aasland2020-11-201-0/+4
| | | | (PEP 384) (GH-23393)
* bpo-40443: Remove unused imports in tests (GH-19805)Victor Stinner2020-04-291-1/+1
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* bpo-36548: Improve the repr of re flags. (GH-12715)Serhiy Storchaka2019-05-311-0/+12
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* bpo-36929: Modify io/re tests to allow for missing mod name (#13392)Max Bernstein2019-05-211-12/+16
| | | | | | | | | | | | | | | | | | * bpo-36929: Modify io/re tests to allow for missing mod name For a vanishingly small number of internal types, CPython sets the tp_name slot to mod_name.type_name, either in the PyTypeObject or the PyType_Spec. There are a few minor places where this surfaces: * Custom repr functions for those types (some of which ignore the tp_name in favor of using a string literal, such as _io.TextIOWrapper) * Pickling error messages The test suite only tests the former. This commit modifies the test suite to allow Python implementations to omit the module prefix. https://bugs.python.org/issue36929
* bpo-29571: Fix test_re.test_locale_flag() (GH-12099)Victor Stinner2019-02-281-2/+1
| | | | | | | | | Use locale.getpreferredencoding() rather than locale.getlocale() to get the locale encoding. With some locales, locale.getlocale() returns the wrong encoding. For example, on Fedora 29, locale.getlocale() returns ISO-8859-1 encoding for the "en_IN" locale, whereas locale.getpreferredencoding() reports the correct encoding: UTF-8.
* bpo-34294: re module, fix wrong capturing groups in rare cases. (GH-11546)animalize2019-02-181-0/+34
| | | | | | Need to reset capturing groups between two SRE(match) callings in loops, this fixes wrong capturing groups in rare cases. Also add a missing index in re.rst.
* bpo-30688: Support \N{name} escapes in re patterns. (GH-5588)Serhiy Storchaka2018-02-091-0/+36
| | | Co-authored-by: Jonathan Eunice <jonathan.eunice@gmail.com>
* bpo-32308: Replace empty matches adjacent to a previous non-empty match in ↵Serhiy Storchaka2018-01-041-14/+9
| | | | re.sub(). (#4846)
* Fix improper use of re.escape() in tests. (#4814)Serhiy Storchaka2017-12-121-1/+1
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* bpo-25054, bpo-1647489: Added support of splitting on zerowidth patterns. ↵Serhiy Storchaka2017-12-041-13/+31
| | | | | | (#4471) Also fixed searching patterns that could match an empty string.
* bpo-30349: Raise FutureWarning for nested sets and set operations (#1553)Serhiy Storchaka2017-11-161-1/+46
| | | | in regular expressions.
* bpo-31690: Allow the inline flags "a", "L", and "u" to be used as group ↵Serhiy Storchaka2017-10-241-8/+14
| | | | flags for RE. (#3885)
* bpo-30397: Add re.Pattern and re.Match. (#1646)Serhiy Storchaka2017-10-041-2/+2
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* bpo-30978: str.format_map() now passes key lookup exceptions through. (#2790)Serhiy Storchaka2017-08-031-1/+1
| | | Previously any exception was replaced with a KeyError exception.
* bpo-30605: Fix compiling binary regexs with BytesWarnings enabled. (#2016)Roy Williams2017-06-101-2/+14
| | | | Running our unit tests with `-bb` enabled triggered this failure.
* bpo-30375: Correct the stacklevel of regex compiling warnings. (#1595)Serhiy Storchaka2017-05-161-3/+14
| | | | | | Warnings emitted when compile a regular expression now always point to the line in the user code. Previously they could point into inners of the re module if emitted from inside of groups or conditionals.
* bpo-30299: Display a bytecode when compile a regex in debug mode. (#1491)Serhiy Storchaka2017-05-141-0/+27
| | | | | `re.compile(..., re.DEBUG)` now displays the compiled bytecode in human readable form.
* bpo-30340: Enhanced regular expressions optimization. (#1542)Serhiy Storchaka2017-05-141-14/+12
| | | | This increased the performance of matching some patterns up to 25 times.
* bpo-30298: Weaken the condition of deprecation warnings for inline ↵Serhiy Storchaka2017-05-101-14/+45
| | | | | | | | modifiers. (#1490) 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)...').
* bpo-30285: Optimize case-insensitive matching and searching (#1482)Serhiy Storchaka2017-05-091-0/+9
| | | | of regular expressions.
* bpo-30277: Replace _sre.getlower() with _sre.ascii_tolower() and ↵Serhiy Storchaka2017-05-051-10/+16
| | | | _sre.unicode_tolower(). (#1468)
* bpo-30215: Make re.compile() locale agnostic. (#1361)Serhiy Storchaka2017-05-051-0/+32
| | | | | | Compiled regular expression objects with the re.LOCALE flag no longer depend on the locale at compile time. Only the locale at matching time affects the result of matching.
* bpo-10076: Compiled regular expression and match objects now are copyable. ↵Serhiy Storchaka2017-04-161-0/+9
| | | | (#1000)
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