mirror of
https://github.com/Hopiu/linkchecker.git
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66ecc466b7
git-svn-id: https://linkchecker.svn.sourceforge.net/svnroot/linkchecker/trunk/linkchecker@1202 e7d03fd6-7b0d-0410-9947-9c21f3af8025
75 lines
2.1 KiB
Python
75 lines
2.1 KiB
Python
# -*- coding: iso-8859-1 -*-
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"""Fast HTML parser module written in C"""
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# Copyright (C) 2000-2004 Bastian Kleineidam
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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__version__ = "$Revision$"[11:-2]
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__date__ = "$Date$"[7:-2]
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import re, htmlentitydefs
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def _resolve_entity (mo):
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"""resolve one &#XXX; entity"""
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# convert to number
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ent = mo.group()
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num = mo.group("num")
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if ent.startswith('&#x'):
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radix = 16
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else:
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radix = 10
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num = int(num, radix)
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# check 7-bit ASCII char range
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if 0<=num<=127:
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return chr(num)
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# not in range
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return ent
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def resolve_entities (s):
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"""resolve entities in 7-bit ASCII range to eliminate obfuscation"""
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return re.sub(r'(?i)&#x?(?P<num>\d+);', _resolve_entity, s)
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entities = htmlentitydefs.entitydefs.items()
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UnHtmlTable = map(lambda x: ("&"+x[0]+";", x[1]), entities)
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# order matters!
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UnHtmlTable.sort()
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UnHtmlTable.reverse()
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def applyTable (table, s):
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"apply a table of replacement pairs to str"
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for mapping in table:
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s = s.replace(mapping[0], mapping[1])
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return s
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def resolve_html_entities (s):
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return applyTable(UnHtmlTable, s)
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def strip_quotes (s):
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"""remove possible double or single quotes"""
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if (s.startswith("'") and s.endswith("'")) or \
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(s.startswith('"') and s.endswith('"')):
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return s[1:-1]
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return s
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def _test ():
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print resolve_entities("&#%d;"%ord('a'))
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if __name__=='__main__':
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_test()
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