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Fix explicitly closed <meta charset> tags causing strip_encoding_declarations to result in invalid XML

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This commit is contained in:
Kovid Goyal 2014-01-31 21:24:39 +05:30
parent e35586fd00
commit 84a1eb96fa
1 changed files with 10 additions and 14 deletions
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12
src/calibre/ebooks/chardet.py
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@ -11,14 +11,11 @@ import re, codecs
ENCODING_PATS = [
# XML declaration
re.compile(r'<\?[^<>]+encoding\s*=\s*[\'"](.*?)[\'"][^<>]*>',
re.IGNORECASE),
re.compile(r'<\?[^<>]+encoding\s*=\s*[\'"](.*?)[\'"][^<>]*>', re.IGNORECASE),
# HTML 4 Pragma directive
re.compile(r'''<meta\s+?[^<>]*?content\s*=\s*['"][^'"]*?charset=([-_a-z0-9]+)[^'"]*?['"][^<>]*>''',
re.IGNORECASE),
re.compile(r'''<meta\s+?[^<>]*?content\s*=\s*['"][^'"]*?charset=([-_a-z0-9]+)[^'"]*?['"][^<>]*>(?:\s*</meta>){0,1}''', re.IGNORECASE),
# HTML 5 charset
re.compile(r'''<meta\s+charset=['"]([-_a-z0-9]+)['"][^<>]*>''',
re.IGNORECASE),
re.compile(r'''<meta\s+charset=['"]([-_a-z0-9]+)['"][^<>]*>(?:\s*</meta>){0,1}''', re.IGNORECASE),
]
ENTITY_PATTERN = re.compile(r'&(\S+?);')
@ -58,8 +55,7 @@ def force_encoding(raw, verbose, assume_utf8=False):
if not encoding:
encoding = preferred_encoding
encoding = encoding.lower()
if _CHARSET_ALIASES.has_key(encoding):
encoding = _CHARSET_ALIASES[encoding]
encoding = _CHARSET_ALIASES.get(encoding, encoding)
if encoding == 'ascii':
encoding = 'utf-8'
return encoding