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ORPA-pyOpenRPA/Resources/WPy64-3720/python-3.7.2.amd64/Lib/site-packages/setuptools/unicode_utils.py

58 lines
1.2 KiB

import unicodedata
import sys
import re
from setuptools.extern import six
# HFS Plus uses decomposed UTF-8
def decompose(path):
if isinstance(path, six.text_type):
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
"""
if isinstance(path, six.text_type):
return path
fs_enc = sys.getfilesystemencoding() or 'utf-8'
candidates = fs_enc, 'utf-8'
for enc in candidates:
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
CODING_RE = re.compile(br'^[ \t\f]*#.*?coding[:=][ \t]*([-\w.]+)')
def detect_encoding(fp):
first_line = fp.readline()
fp.seek(0)
m = CODING_RE.match(first_line)
if m is None:
return None
return m.group(1).decode('ascii')