Current File : //lib/python3/dist-packages/xdg/Locale.py
"""
Helper Module for Locale settings
This module is based on a ROX module (LGPL):
http://cvs.sourceforge.net/viewcvs.py/rox/ROX-Lib2/python/rox/i18n.py?rev=1.3&view=log
"""
import os
from locale import normalize
regex = r"(\[([a-zA-Z]+)(_[a-zA-Z]+)?(\.[a-zA-Z0-9-]+)?(@[a-zA-Z]+)?\])?"
def _expand_lang(locale):
locale = normalize(locale)
COMPONENT_CODESET = 1 << 0
COMPONENT_MODIFIER = 1 << 1
COMPONENT_TERRITORY = 1 << 2
# split up the locale into its base components
mask = 0
pos = locale.find('@')
if pos >= 0:
modifier = locale[pos:]
locale = locale[:pos]
mask |= COMPONENT_MODIFIER
else:
modifier = ''
pos = locale.find('.')
codeset = ''
if pos >= 0:
locale = locale[:pos]
pos = locale.find('_')
if pos >= 0:
territory = locale[pos:]
locale = locale[:pos]
mask |= COMPONENT_TERRITORY
else:
territory = ''
language = locale
ret = []
for i in range(mask+1):
if not (i & ~mask): # if all components for this combo exist ...
val = language
if i & COMPONENT_TERRITORY: val += territory
if i & COMPONENT_CODESET: val += codeset
if i & COMPONENT_MODIFIER: val += modifier
ret.append(val)
ret.reverse()
return ret
def expand_languages(languages=None):
# Get some reasonable defaults for arguments that were not supplied
if languages is None:
languages = []
for envar in ('LANGUAGE', 'LC_ALL', 'LC_MESSAGES', 'LANG'):
val = os.environ.get(envar)
if val:
languages = val.split(':')
break
#if 'C' not in languages:
# languages.append('C')
# now normalize and expand the languages
nelangs = []
for lang in languages:
for nelang in _expand_lang(lang):
if nelang not in nelangs:
nelangs.append(nelang)
return nelangs
def update(language=None):
global langs
if language:
langs = expand_languages([language])
else:
langs = expand_languages()
langs = []
update()
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