58 lines
1.2 KiB
Python
58 lines
1.2 KiB
Python
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import unicodedata
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import sys
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import re
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from setuptools.extern import six
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# HFS Plus uses decomposed UTF-8
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def decompose(path):
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if isinstance(path, six.text_type):
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return unicodedata.normalize('NFD', path)
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try:
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path = path.decode('utf-8')
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path = unicodedata.normalize('NFD', path)
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path = path.encode('utf-8')
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except UnicodeError:
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pass # Not UTF-8
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return path
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def filesys_decode(path):
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"""
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Ensure that the given path is decoded,
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NONE when no expected encoding works
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"""
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if isinstance(path, six.text_type):
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return path
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fs_enc = sys.getfilesystemencoding() or 'utf-8'
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candidates = fs_enc, 'utf-8'
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for enc in candidates:
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try:
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return path.decode(enc)
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except UnicodeDecodeError:
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continue
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def try_encode(string, enc):
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"turn unicode encoding into a functional routine"
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try:
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return string.encode(enc)
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except UnicodeEncodeError:
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return None
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CODING_RE = re.compile(br'^[ \t\f]*#.*?coding[:=][ \t]*([-\w.]+)')
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def detect_encoding(fp):
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first_line = fp.readline()
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fp.seek(0)
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m = CODING_RE.match(first_line)
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if m is None:
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return None
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return m.group(1).decode('ascii')
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