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import unicodedata
import sys
from setuptools.compat import unicode as decoded_string
# HFS Plus uses decomposed UTF-8
def decompose(path):
if isinstance(path, decoded_string):
return unicodedata.normalize('NFD', path)
try:
path = path.decode('utf-8')
path = unicodedata.normalize('NFD', path)
path = path.encode('utf-8')
except UnicodeError:
pass # Not UTF-8
return path
def filesys_decode(path):
"""
Ensure that the given path is decoded,
NONE when no expected encoding works
"""
fs_enc = sys.getfilesystemencoding()
if isinstance(path, decoded_string):
return path
for enc in (fs_enc, "utf-8"):
try:
return path.decode(enc)
except UnicodeDecodeError:
continue
def try_encode(string, enc):
"turn unicode encoding into a functional routine"
try:
return string.encode(enc)
except UnicodeEncodeError:
return None
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