Issue #5815: Fixed support for locales with modifiers. Fixed support for
locale encodings with hyphens.
This commit is contained in:
Serhiy Storchaka
parent
1e81a399a2
commit
c8cc42edf4
114
Lib/locale.py
114
Lib/locale.py
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@ -336,6 +336,22 @@ def _test():
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# overridden below)
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_setlocale = setlocale
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def _replace_encoding(code, encoding):
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if '.' in code:
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langname = code[:code.index('.')]
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else:
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langname = code
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# Convert the encoding to a C lib compatible encoding string
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norm_encoding = encodings.normalize_encoding(encoding)
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#print('norm encoding: %r' % norm_encoding)
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norm_encoding = encodings.aliases.aliases.get(norm_encoding,
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norm_encoding)
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#print('aliased encoding: %r' % norm_encoding)
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encoding = locale_encoding_alias.get(norm_encoding,
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norm_encoding)
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#print('found encoding %r' % encoding)
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return langname + '.' + encoding
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def normalize(localename):
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""" Returns a normalized locale code for the given locale
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@ -352,55 +368,71 @@ def normalize(localename):
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does.
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"""
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# Normalize the locale name and extract the encoding
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fullname = localename.lower()
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if ':' in fullname:
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# Normalize the locale name and extract the encoding and modifier
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code = localename.lower()
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if ':' in code:
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# ':' is sometimes used as encoding delimiter.
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fullname = fullname.replace(':', '.')
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if '.' in fullname:
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langname, encoding = fullname.split('.')[:2]
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fullname = langname + '.' + encoding
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code = code.replace(':', '.')
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if '@' in code:
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code, modifier = code.split('@', 1)
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else:
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langname = fullname
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modifier = ''
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if '.' in code:
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langname, encoding = code.split('.')[:2]
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else:
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langname = code
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encoding = ''
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# First lookup: fullname (possibly with encoding)
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norm_encoding = encoding.replace('-', '')
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norm_encoding = norm_encoding.replace('_', '')
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lookup_name = langname + '.' + encoding
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# First lookup: fullname (possibly with encoding and modifier)
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lang_enc = langname
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if encoding:
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norm_encoding = encoding.replace('-', '')
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norm_encoding = norm_encoding.replace('_', '')
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lang_enc += '.' + norm_encoding
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lookup_name = lang_enc
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if modifier:
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lookup_name += '@' + modifier
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code = locale_alias.get(lookup_name, None)
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if code is not None:
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return code
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#print 'first lookup failed'
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#print('first lookup failed')
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# Second try: langname (without encoding)
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code = locale_alias.get(langname, None)
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if code is not None:
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#print 'langname lookup succeeded'
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if '.' in code:
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langname, defenc = code.split('.')
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else:
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langname = code
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defenc = ''
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if encoding:
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# Convert the encoding to a C lib compatible encoding string
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norm_encoding = encodings.normalize_encoding(encoding)
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#print 'norm encoding: %r' % norm_encoding
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norm_encoding = encodings.aliases.aliases.get(norm_encoding,
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norm_encoding)
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#print 'aliased encoding: %r' % norm_encoding
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encoding = locale_encoding_alias.get(norm_encoding,
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norm_encoding)
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else:
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encoding = defenc
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#print 'found encoding %r' % encoding
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if encoding:
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return langname + '.' + encoding
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else:
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return langname
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if modifier:
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# Second try: fullname without modifier (possibly with encoding)
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code = locale_alias.get(lang_enc, None)
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if code is not None:
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#print('lookup without modifier succeeded')
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if '@' not in code:
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return code + '@' + modifier
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if code.split('@', 1)[1].lower() == modifier:
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return code
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#print('second lookup failed')
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else:
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return localename
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if encoding:
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# Third try: langname (without encoding, possibly with modifier)
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lookup_name = langname
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if modifier:
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lookup_name += '@' + modifier
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code = locale_alias.get(lookup_name, None)
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if code is not None:
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#print('lookup without encoding succeeded')
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if '@' not in code:
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return _replace_encoding(code, encoding)
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code, modifier = code.split('@', 1)
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return _replace_encoding(code, encoding) + '@' + modifier
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if modifier:
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# Fourth try: langname (without encoding and modifier)
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code = locale_alias.get(langname, None)
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if code is not None:
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#print('lookup without modifier and encoding succeeded')
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if '@' not in code:
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return _replace_encoding(code, encoding) + '@' + modifier
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code, defmod = code.split('@', 1)
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if defmod.lower() == modifier:
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return _replace_encoding(code, encoding) + '@' + defmod
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return localename
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def _parse_localename(localename):
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@ -419,7 +451,7 @@ def _parse_localename(localename):
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code = normalize(localename)
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if '@' in code:
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# Deal with locale modifiers
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code, modifier = code.split('@')
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code, modifier = code.split('@', 1)
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if modifier == 'euro' and '.' not in code:
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# Assume Latin-9 for @euro locales. This is bogus,
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# since some systems may use other encodings for these
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@ -365,6 +365,64 @@ class TestEnUSCollation(BaseLocalizedTest, TestCollation):
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self.assertLess(locale.strxfrm('à'), locale.strxfrm('b'))
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class NormalizeTest(unittest.TestCase):
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def check(self, localename, expected):
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self.assertEqual(locale.normalize(localename), expected, msg=localename)
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def test_locale_alias(self):
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for localename, alias in locale.locale_alias.items():
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with self.subTest(locale=(localename, alias)):
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self.check(localename, alias)
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def test_empty(self):
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self.check('', '')
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def test_c(self):
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self.check('c', 'C')
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self.check('posix', 'C')
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def test_english(self):
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self.check('en', 'en_US.ISO8859-1')
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self.check('EN', 'en_US.ISO8859-1')
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self.check('en_US', 'en_US.ISO8859-1')
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self.check('en_us', 'en_US.ISO8859-1')
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self.check('en_GB', 'en_GB.ISO8859-1')
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self.check('en_US.UTF-8', 'en_US.UTF-8')
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self.check('en_US.utf8', 'en_US.UTF-8')
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self.check('en_US:UTF-8', 'en_US.UTF-8')
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self.check('en_US.ISO8859-1', 'en_US.ISO8859-1')
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self.check('en_US.US-ASCII', 'en_US.ISO8859-1')
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self.check('english', 'en_EN.ISO8859-1')
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def test_hyphenated_encoding(self):
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self.check('az_AZ.iso88599e', 'az_AZ.ISO8859-9E')
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self.check('az_AZ.ISO8859-9E', 'az_AZ.ISO8859-9E')
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self.check('tt_RU.koi8c', 'tt_RU.KOI8-C')
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self.check('tt_RU.KOI8-C', 'tt_RU.KOI8-C')
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self.check('lo_LA.cp1133', 'lo_LA.IBM-CP1133')
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self.check('lo_LA.ibmcp1133', 'lo_LA.IBM-CP1133')
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self.check('lo_LA.IBM-CP1133', 'lo_LA.IBM-CP1133')
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self.check('uk_ua.microsoftcp1251', 'uk_UA.CP1251')
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self.check('uk_ua.microsoft-cp1251', 'uk_UA.CP1251')
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self.check('ka_ge.georgianacademy', 'ka_GE.GEORGIAN-ACADEMY')
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self.check('ka_GE.GEORGIAN-ACADEMY', 'ka_GE.GEORGIAN-ACADEMY')
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self.check('cs_CZ.iso88592', 'cs_CZ.ISO8859-2')
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self.check('cs_CZ.ISO8859-2', 'cs_CZ.ISO8859-2')
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def test_euro_modifier(self):
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self.check('de_DE@euro', 'de_DE.ISO8859-15')
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self.check('en_US.ISO8859-15@euro', 'en_US.ISO8859-15')
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def test_latin_modifier(self):
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self.check('be_BY.UTF-8@latin', 'be_BY.UTF-8@latin')
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self.check('sr_RS.UTF-8@latin', 'sr_RS.UTF-8@latin')
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def test_valencia_modifier(self):
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self.check('ca_ES.UTF-8@valencia', 'ca_ES.UTF-8@valencia')
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self.check('ca_ES@valencia', 'ca_ES.ISO8859-1@valencia')
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self.check('ca@valencia', 'ca_ES.ISO8859-1@valencia')
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class TestMiscellaneous(unittest.TestCase):
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def test_getpreferredencoding(self):
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# Invoke getpreferredencoding to make sure it does not cause exceptions.
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