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'''Information about supported locales, countries, and languages.'''
# this is part of langpack-o-matic, by Martin Pitt <martin.pitt@canonical.com>
# (C) 2005 Canonical Ltd.
import os.path
import tempfile
import shutil
import tarfile
import logging
import sys
class SupportedLocales:
def __init__(self):
self.languages = {}
mapdir = os.path.join(os.path.dirname(os.path.abspath(__file__)),
'..', 'maps')
for line in open(os.path.join(mapdir, 'languages')):
if line.find('#') == -1:
(code, name) = line.strip().split(':')
self.languages[code] = name
self.countries = {}
for line in open(os.path.join(mapdir, 'countries')):
if line.find('#') == -1 and line.find(':') >= 0:
(code, name) = line.strip().split(':')
self.countries[code] = name
self.locales = {}
for s in open(os.path.join(mapdir, 'supported-locales')):
(l, e) = s.split()
self.locales[l] = e
self.pkglocales = {}
for s in open(os.path.join(mapdir, 'locale2pkgname')):
(l, p) = s.strip().split(':')
(ll, cc) = l.split('-')
loc = "%s_%s" % (ll, cc.upper())
if p not in self.pkglocales:
self.pkglocales[p] = []
self.pkglocales[p].append(loc)
def known_language(self, lang):
'''Return whether the given language is supported.
>>> import localeinfo
>>> sl = localeinfo.SupportedLocales()
>>> sl.known_language('en')
True
>>> sl.known_language('de')
True
>>> sl.known_language('xx')
False
'''
return lang in self.languages
def known_country(self, country):
'''Return whether the given language is supported.
>>> import localeinfo
>>> sl = localeinfo.SupportedLocales()
>>> sl.known_country('GB')
True
>>> sl.known_country('US')
True
>>> sl.known_country('DE')
True
>>> sl.known_country('EN')
False
'''
return country in self.countries
def known_locale(self, locale):
'''Return whether the given locale is supported.
>>> import localeinfo
>>> sl = localeinfo.SupportedLocales()
>>> sl.known_locale('en_GB.UTF-8')
True
>>> sl.known_locale('de_DE.UTF-8')
True
>>> sl.known_locale('de_DE@euro')
False
>>> sl.known_locale('de_DE@euro.UTF-8')
False
>>> sl.known_locale('xx_XX')
False
'''
return locale in self.locales
def language_name(self, code):
'''Return the name of the given language code.
>>> import localeinfo
>>> sl = localeinfo.SupportedLocales()
>>> sl.language_name('de')
'German'
>>> sl.language_name('en')
'English'
>>> sl.language_name('xx')
Traceback (most recent call last):
KeyError: 'xx'
'''
return self.languages[code]
def country_name(self, code):
'''Return the name of the given country code.
>>> import localeinfo
>>> sl = localeinfo.SupportedLocales()
>>> sl.country_name('GB')
'United Kingdom'
>>> sl.country_name('US')
'United States'
>>> sl.country_name('DE')
'Germany'
>>> sl.country_name('EN')
Traceback (most recent call last):
KeyError: 'EN'
'''
return self.countries[code]
def language_locales(self, lang):
'''Return a list with pairs (locale, encoding) that are supported for
the given language code.
Return empty list if language is unknown.
>>> import localeinfo
>>> sl=localeinfo.SupportedLocales()
>>>
>>> sl.language_locales('foo')
[]
>>> sl.language_locales('cs') == [('cs_CZ.UTF-8', 'UTF-8')]
True
>>> sl.language_locales('eo')
[('eo', 'UTF-8'), ('eo_US.UTF-8', 'UTF-8')]
>>> sl.language_locales('zh-hans')
[('zh_CN.UTF-8', 'UTF-8'), ('zh_SG.UTF-8', 'UTF-8')]
>>> sorted(sl.language_locales('zh-hant'))
[('zh_HK.UTF-8', 'UTF-8'), ('zh_TW.UTF-8', 'UTF-8')]
'''
if lang in self.pkglocales:
locales = [(l, e) for l, e in self.locales.items() if l.split('.')[0].split('@')[0] in self.pkglocales[lang]]
else:
locales = [(l, e) for l, e in self.locales.items() if lang == l.split('.')[0].split('@')[0].split('_')[0]]
# maps consistency check
if len(locales) == 0 and self.known_language(lang):
logging.error('no supported locales for known language %s', lang)
return locales
def create_locale_tar(self, lang):
'''Generate a tarball (suitable for supplying as extra.tar) with
the /var/lib/locales/supported.d file.
The returned tarball name is a temporary file that should be removed
after using it.
>>> import localeinfo, os, tarfile
>>> sl = localeinfo.SupportedLocales()
>>> tarname = sl.create_locale_tar('de')
>>> tar = tarfile.open(tarname)
>>> names = tar.getnames()
>>> names.sort()
>>> names
['var/lib/locales/supported.d/de']
>>> print(tar.extractfile('var/lib/locales/supported.d/de').read().decode('UTF-8'))
de_DE.UTF-8 UTF-8
de_IT.UTF-8 UTF-8
de_CH.UTF-8 UTF-8
de_BE.UTF-8 UTF-8
de_LI.UTF-8 UTF-8
de_LU.UTF-8 UTF-8
de_AT.UTF-8 UTF-8
<BLANKLINE>
>>> tar.close()
>>> os.unlink(tarname)
'''
dir = None
tar = None
try:
dir = tempfile.mkdtemp()
supported_dir = os.path.join(dir, 'var/lib/locales/supported.d')
os.makedirs(supported_dir)
supp_list = open(os.path.join(supported_dir, lang), 'w')
sl = self.language_locales(lang)
for loc, enc in sl:
supp_list.write('%s %s\n' % (loc, enc))
supp_list.close()
(f, tar) = tempfile.mkstemp('.tar.gz')
os.close(f)
t = tarfile.open(tar, 'w:gz')
old_cwd = os.getcwd()
os.chdir(dir)
t.add(os.path.join('var/lib/locales/supported.d', lang))
os.chdir(old_cwd)
t.close()
finally:
shutil.rmtree(dir, True)
return tar
# unit test
if __name__ == '__main__':
import doctest
res = doctest.testmod()
if res.failed != 0:
sys.exit(1)
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