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gh-124969: Make locale.nl_langinfo(locale.ALT_DIGITS) returning a string again (GH-125774)

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This is a follow up of GH-124974. Only Glibc needed a fix.
Now the returned value is a string consisting of semicolon-separated
symbols on all Posix platforms.
This commit is contained in:
Serhiy Storchaka 2024-10-21 21:54:12 +03:00 committed by GitHub
parent 5ca4e34bc1
commit dcc4fb2c90
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4 changed files with 50 additions and 27 deletions
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7
Doc/library/locale.rst
View File

@ -158,8 +158,7 @@ The :mod:`locale` module defines the following exception and functions:
.. function:: nl_langinfo(option)
Return some locale-specific information as a string (or a tuple for
``ALT_DIGITS``). This function is not
Return some locale-specific information as a string. This function is not
available on all systems, and the set of possible options might also vary
across platforms. The possible argument values are numbers, for which
symbolic constants are available in the locale module.
@ -312,7 +311,9 @@ The :mod:`locale` module defines the following exception and functions:
.. data:: ALT_DIGITS
Get a tuple of up to 100 strings used to represent the values 0 to 99.
Get a string consisting of up to 100 semicolon-separated symbols used
to represent the values 0 to 99 in a locale-specific way.
In most locales this is an empty string.
The function temporarily sets the ``LC_CTYPE`` locale to the locale
of the category that determines the requested value (``LC_TIME``,

30
Lib/test/test__locale.py
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@ -26,7 +26,10 @@ candidate_locales = ['es_UY', 'fr_FR', 'fi_FI', 'es_CO', 'pt_PT', 'it_IT',
'bs_BA', 'fr_LU', 'kl_GL', 'fa_IR', 'de_BE', 'sv_SE', 'it_CH', 'uk_UA',
'eu_ES', 'vi_VN', 'af_ZA', 'nb_NO', 'en_DK', 'tg_TJ', 'ps_AF', 'en_US',
'fr_FR.ISO8859-1', 'fr_FR.UTF-8', 'fr_FR.ISO8859-15@euro',
'ru_RU.KOI8-R', 'ko_KR.eucKR']
'ru_RU.KOI8-R', 'ko_KR.eucKR',
'ja_JP.UTF-8', 'lzh_TW.UTF-8', 'my_MM.UTF-8', 'or_IN.UTF-8', 'shn_MM.UTF-8',
'ar_AE.UTF-8', 'bn_IN.UTF-8', 'mr_IN.UTF-8', 'th_TH.TIS620',
]
def setUpModule():
global candidate_locales
@ -78,11 +81,13 @@ known_alt_digits = {
'C': (0, {}),
'en_US': (0, {}),
'fa_IR': (100, {0: '\u06f0\u06f0', 10: '\u06f1\u06f0', 99: '\u06f9\u06f9'}),
'ja_JP': (100, {0: '\u3007', 10: '\u5341', 99: '\u4e5d\u5341\u4e5d'}),
'ja_JP': (100, {1: '\u4e00', 10: '\u5341', 99: '\u4e5d\u5341\u4e5d'}),
'lzh_TW': (32, {0: '\u3007', 10: '\u5341', 31: '\u5345\u4e00'}),
'my_MM': (100, {0: '\u1040\u1040', 10: '\u1041\u1040', 99: '\u1049\u1049'}),
'or_IN': (100, {0: '\u0b66', 10: '\u0b67\u0b66', 99: '\u0b6f\u0b6f'}),
'shn_MM': (100, {0: '\u1090\u1090', 10: '\u1091\u1090', 99: '\u1099\u1099'}),
'ar_AE': (100, {0: '\u0660', 10: '\u0661\u0660', 99: '\u0669\u0669'}),
'bn_IN': (100, {0: '\u09e6', 10: '\u09e7\u09e6', 99: '\u09ef\u09ef'}),
}
if sys.platform == 'win32':
@ -199,21 +204,28 @@ class _LocaleTests(unittest.TestCase):
def test_alt_digits_nl_langinfo(self):
# Test nl_langinfo(ALT_DIGITS)
tested = False
for loc, (count, samples) in known_alt_digits.items():
for loc in candidate_locales:
with self.subTest(locale=loc):
try:
setlocale(LC_TIME, loc)
except Error:
self.skipTest(f'no locale {loc!r}')
continue
with self.subTest(locale=loc):
alt_digits = nl_langinfo(locale.ALT_DIGITS)
self.assertIsInstance(alt_digits, tuple)
if count and not alt_digits and support.is_apple:
self.skipTest(f'ALT_DIGITS is not set for locale {loc!r} on Apple platforms')
self.assertEqual(len(alt_digits), count)
for i in samples:
self.assertEqual(alt_digits[i], samples[i])
self.assertIsInstance(alt_digits, str)
alt_digits = alt_digits.split(';') if alt_digits else []
if alt_digits:
self.assertGreaterEqual(len(alt_digits), 10, alt_digits)
loc1 = loc.split('.', 1)[0]
if loc1 in known_alt_digits:
count, samples = known_alt_digits[loc1]
if count and not alt_digits:
self.skipTest(f'ALT_DIGITS is not set for locale {loc!r} on this platform')
self.assertEqual(len(alt_digits), count, alt_digits)
for i in samples:
self.assertEqual(alt_digits[i], samples[i])
tested = True
if not tested:
self.skipTest('no suitable locales')

2
Misc/NEWS.d/next/Library/2024-10-21-12-06-55.gh-issue-124969.xiY8UP.rst Normal file
View File

@ -0,0 +1,2 @@
``locale.nl_langinfo(locale.ALT_DIGITS)`` now returns a string again. The
returned value consists of up to 100 semicolon-separated symbols.

38
Modules/_localemodule.c
View File

@ -667,28 +667,36 @@ _locale_nl_langinfo_impl(PyObject *module, int item)
return NULL;
}
PyObject *pyresult;
#ifdef __GLIBC__
#ifdef ALT_DIGITS
if (item == ALT_DIGITS) {
/* The result is a sequence of up to 100 NUL-separated strings. */
const char *s = result;
if (item == ALT_DIGITS && *result) {
/* According to the POSIX specification the result must be
* a sequence of up to 100 semicolon-separated strings.
* But in Glibc they are NUL-separated. */
Py_ssize_t i = 0;
int count = 0;
for (; count < 100 && *s; count++) {
s += strlen(s) + 1;
for (; count < 100 && result[i]; count++) {
i += strlen(result + i) + 1;
}
pyresult = PyTuple_New(count);
if (pyresult != NULL) {
for (int i = 0; i < count; i++) {
PyObject *unicode = PyUnicode_DecodeLocale(result, NULL);
if (unicode == NULL) {
Py_CLEAR(pyresult);
break;
}
PyTuple_SET_ITEM(pyresult, i, unicode);
result += strlen(result) + 1;
char *buf = PyMem_Malloc(i);
if (buf == NULL) {
PyErr_NoMemory();
pyresult = NULL;
}
else {
memcpy(buf, result, i);
/* Replace all NULs with semicolons. */
i = 0;
while (--count) {
i += strlen(buf + i);
buf[i++] = ';';
}
pyresult = PyUnicode_DecodeLocale(buf, NULL);
PyMem_Free(buf);
}
}
else
#endif
#endif
{
pyresult = PyUnicode_DecodeLocale(result, NULL);