From ccdf352370da4acf2c3f1c77e4a21bc954b4dcf6 Mon Sep 17 00:00:00 2001 From: Serhiy Storchaka Date: Thu, 6 Mar 2014 11:28:32 +0200 Subject: [PATCH] Issue #20283: RE pattern methods now accept the string keyword parameters as documented. The pattern and source keyword parameters are left as deprecated aliases. --- Lib/test/test_re.py | 16 +++++++++ Misc/NEWS | 4 +++ Modules/_sre.c | 84 ++++++++++++++++++++++++++++++++++----------- 3 files changed, 84 insertions(+), 20 deletions(-) diff --git a/Lib/test/test_re.py b/Lib/test/test_re.py index 1c6f45dfa6..5466b20653 100644 --- a/Lib/test/test_re.py +++ b/Lib/test/test_re.py @@ -1076,6 +1076,22 @@ class ReTests(unittest.TestCase): self.assertEqual(out.getvalue().splitlines(), ['literal 102 ', 'literal 111 ', 'literal 111 ']) + def test_keyword_parameters(self): + # Issue #20283: Accepting the string keyword parameter. + pat = re.compile(r'(ab)') + self.assertEqual( + pat.match(string='abracadabra', pos=7, endpos=10).span(), (7, 9)) + self.assertEqual( + pat.search(string='abracadabra', pos=3, endpos=10).span(), (7, 9)) + self.assertEqual( + pat.findall(string='abracadabra', pos=3, endpos=10), ['ab']) + self.assertEqual( + pat.split(string='abracadabra', maxsplit=1), + ['', 'ab', 'racadabra']) + self.assertEqual( + pat.scanner(string='abracadabra', pos=3, endpos=10).search().span(), + (7, 9)) + def run_re_tests(): from test.re_tests import tests, SUCCEED, FAIL, SYNTAX_ERROR diff --git a/Misc/NEWS b/Misc/NEWS index e32613fa16..62211f4711 100644 --- a/Misc/NEWS +++ b/Misc/NEWS @@ -22,6 +22,10 @@ Core and Builtins Library ------- +- Issue #20283: RE pattern methods now accept the string keyword parameters + as documented. The pattern and source keyword parameters are left as + deprecated aliases. + - Issue #20778: Fix modulefinder to work with bytecode-only modules. - Issue #20791: copy.copy() now doesn't make a copy when the input is diff --git a/Modules/_sre.c b/Modules/_sre.c index 1c76d24dbd..b1258eefc4 100644 --- a/Modules/_sre.c +++ b/Modules/_sre.c @@ -1876,18 +1876,46 @@ pattern_dealloc(PatternObject* self) PyObject_DEL(self); } +static PyObject* +fix_string_param(PyObject *string, PyObject *string2, const char *oldname) +{ + if (string2 != NULL) { + if (string != NULL) { + PyErr_Format(PyExc_TypeError, + "Argument given by name ('%s') and position (1)", + oldname); + return NULL; + } + if (PyErr_WarnFormat(PyExc_DeprecationWarning, 1, + "The '%s' keyword parameter name is deprecated. " + "Use 'string' instead.", oldname) < 0) + return NULL; + return string2; + } + if (string == NULL) { + PyErr_SetString(PyExc_TypeError, + "Required argument 'string' (pos 1) not found"); + return NULL; + } + return string; +} + static PyObject* pattern_match(PatternObject* self, PyObject* args, PyObject* kw) { SRE_STATE state; int status; - PyObject* string; + PyObject *string = NULL, *string2 = NULL; Py_ssize_t start = 0; Py_ssize_t end = PY_SSIZE_T_MAX; - static char* kwlist[] = { "pattern", "pos", "endpos", NULL }; - if (!PyArg_ParseTupleAndKeywords(args, kw, "O|nn:match", kwlist, - &string, &start, &end)) + static char* kwlist[] = { "string", "pos", "endpos", "pattern", NULL }; + if (!PyArg_ParseTupleAndKeywords(args, kw, "|Onn$O:match", kwlist, + &string, &start, &end, &string2)) + return NULL; + + string = fix_string_param(string, string2, "pattern"); + if (!string) return NULL; string = state_init(&state, self, string, start, end); @@ -1919,12 +1947,16 @@ pattern_search(PatternObject* self, PyObject* args, PyObject* kw) SRE_STATE state; int status; - PyObject* string; + PyObject *string = NULL, *string2 = NULL; Py_ssize_t start = 0; Py_ssize_t end = PY_SSIZE_T_MAX; - static char* kwlist[] = { "pattern", "pos", "endpos", NULL }; - if (!PyArg_ParseTupleAndKeywords(args, kw, "O|nn:search", kwlist, - &string, &start, &end)) + static char* kwlist[] = { "string", "pos", "endpos", "pattern", NULL }; + if (!PyArg_ParseTupleAndKeywords(args, kw, "|Onn$O:search", kwlist, + &string, &start, &end, &string2)) + return NULL; + + string = fix_string_param(string, string2, "pattern"); + if (!string) return NULL; string = state_init(&state, self, string, start, end); @@ -2052,12 +2084,16 @@ pattern_findall(PatternObject* self, PyObject* args, PyObject* kw) int status; Py_ssize_t i, b, e; - PyObject* string; + PyObject *string = NULL, *string2 = NULL; Py_ssize_t start = 0; Py_ssize_t end = PY_SSIZE_T_MAX; - static char* kwlist[] = { "source", "pos", "endpos", NULL }; - if (!PyArg_ParseTupleAndKeywords(args, kw, "O|nn:findall", kwlist, - &string, &start, &end)) + static char* kwlist[] = { "string", "pos", "endpos", "source", NULL }; + if (!PyArg_ParseTupleAndKeywords(args, kw, "|Onn$O:findall", kwlist, + &string, &start, &end, &string2)) + return NULL; + + string = fix_string_param(string, string2, "source"); + if (!string) return NULL; string = state_init(&state, self, string, start, end); @@ -2180,11 +2216,15 @@ pattern_split(PatternObject* self, PyObject* args, PyObject* kw) Py_ssize_t i; void* last; - PyObject* string; + PyObject *string = NULL, *string2 = NULL; Py_ssize_t maxsplit = 0; - static char* kwlist[] = { "source", "maxsplit", NULL }; - if (!PyArg_ParseTupleAndKeywords(args, kw, "O|n:split", kwlist, - &string, &maxsplit)) + static char* kwlist[] = { "string", "maxsplit", "source", NULL }; + if (!PyArg_ParseTupleAndKeywords(args, kw, "|On$O:split", kwlist, + &string, &maxsplit, &string2)) + return NULL; + + string = fix_string_param(string, string2, "source"); + if (!string) return NULL; string = state_init(&state, self, string, 0, PY_SSIZE_T_MAX); @@ -3882,12 +3922,16 @@ pattern_scanner(PatternObject* pattern, PyObject* args, PyObject* kw) ScannerObject* self; - PyObject* string; + PyObject *string = NULL, *string2 = NULL; Py_ssize_t start = 0; Py_ssize_t end = PY_SSIZE_T_MAX; - static char* kwlist[] = { "source", "pos", "endpos", NULL }; - if (!PyArg_ParseTupleAndKeywords(args, kw, "O|nn:scanner", kwlist, - &string, &start, &end)) + static char* kwlist[] = { "string", "pos", "endpos", "source", NULL }; + if (!PyArg_ParseTupleAndKeywords(args, kw, "|Onn$O:scanner", kwlist, + &string, &start, &end, &string2)) + return NULL; + + string = fix_string_param(string, string2, "source"); + if (!string) return NULL; /* create scanner object */ -- 2.40.0