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SickRage/lib/enzyme/strutils.py

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# -*- coding: utf-8 -*-
# enzyme - Video metadata parser
# Copyright 2011-2012 Antoine Bertin <diaoulael@gmail.com>
# Copyright 2006-2009 Dirk Meyer <dischi@freevo.org>
# Copyright 2006-2009 Jason Tackaberry
#
# This file is part of enzyme.
#
# enzyme is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# enzyme is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with enzyme. If not, see <http://www.gnu.org/licenses/>.
__all__ = ['ENCODING', 'str_to_unicode', 'unicode_to_str']
import locale
# find the correct encoding
try:
ENCODING = locale.getdefaultlocale()[1]
''.encode(ENCODING)
except (UnicodeError, TypeError):
ENCODING = 'latin-1'
def str_to_unicode(s, encoding=None):
"""
Attempts to convert a string of unknown character set to a unicode
string. First it tries to decode the string based on the locale's
preferred encoding, and if that fails, fall back to UTF-8 and then
latin-1. If all fails, it will force encoding to the preferred
charset, replacing unknown characters. If the given object is no
string, this function will return the given object.
"""
if not type(s) == str:
return s
if not encoding:
encoding = ENCODING
for c in [encoding, "utf-8", "latin-1"]:
try:
return s.decode(c)
except UnicodeDecodeError:
pass
return s.decode(encoding, "replace")
def unicode_to_str(s, encoding=None):
"""
Attempts to convert a unicode string of unknown character set to a
string. First it tries to encode the string based on the locale's
preferred encoding, and if that fails, fall back to UTF-8 and then
latin-1. If all fails, it will force encoding to the preferred
charset, replacing unknown characters. If the given object is no
unicode string, this function will return the given object.
"""
if not type(s) == unicode:
return s
if not encoding:
encoding = ENCODING
for c in [encoding, "utf-8", "latin-1"]:
try:
return s.encode(c)
except UnicodeDecodeError:
pass
return s.encode(encoding, "replace")