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# Copyright (C) 2007-2010 www.stani.be
#
# This program 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.
#
# This program 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 this program. If not, see http://www.gnu.org/licenses/
# Follows PEP8
import codecs
import locale
import sys
import system
def is_known(encoding):
try:
codecs.lookup(encoding)
return True
except (LookUpError, TypeError):
return False
if not sys.platform.startswith('win') or sys.version_info[:2] < (2, 3):
ENCODING = locale.getlocale(locale.LC_TIME)[1]
else:
ENCODING = None
if not(ENCODING and is_known(ENCODING)):
ENCODING = locale.getdefaultlocale()[1]
if not(ENCODING and is_known(ENCODING)):
ENCODING = locale.getpreferredencoding()
if not(ENCODING and is_known(ENCODING)):
ENCODING = 'utf-8'
def encode(x, encoding='ascii', errors='replace'):
if type(x) is unicode:
return x.encode(encoding, errors)
else:
return x.decode(encoding, errors).encode(encoding, errors)
def ensure_unicode(x, encoding=ENCODING, errors='replace'):
if type(x) is unicode:
return x
try:
return unicode(x)
except UnicodeDecodeError:
return unicode(x, encoding, errors)
def exception_to_unicode(x, encoding=ENCODING, errors='replace'):
if len(x.args) == 1:
return unicode(x.args[0])
else:
return unicode(x.args)
def fix_filename(f, encoding=None):
if system.is_file(f):
return f
if type(f) is unicode:
encodings = ['latin1', 'utf-8', ENCODING]
if encoding:
encodings = [encoding] + encodings
for encoding in encodings:
try:
f = f.encode(encoding)
if system.is_file(f):
return f
except UnicodeEncodeError:
pass
return None
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