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