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1 ######################## BEGIN LICENSE BLOCK ######################## | |
2 # The Original Code is Mozilla Universal charset detector code. | |
3 # | |
4 # The Initial Developer of the Original Code is | |
5 # Netscape Communications Corporation. | |
6 # Portions created by the Initial Developer are Copyright (C) 2001 | |
7 # the Initial Developer. All Rights Reserved. | |
8 # | |
9 # Contributor(s): | |
10 # Mark Pilgrim - port to Python | |
11 # Shy Shalom - original C code | |
12 # | |
13 # This library is free software; you can redistribute it and/or | |
14 # modify it under the terms of the GNU Lesser General Public | |
15 # License as published by the Free Software Foundation; either | |
16 # version 2.1 of the License, or (at your option) any later version. | |
17 # | |
18 # This library is distributed in the hope that it will be useful, | |
19 # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
21 # Lesser General Public License for more details. | |
22 # | |
23 # You should have received a copy of the GNU Lesser General Public | |
24 # License along with this library; if not, write to the Free Software | |
25 # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | |
26 # 02110-1301 USA | |
27 ######################### END LICENSE BLOCK ######################### | |
28 | |
29 from . import constants | |
30 import re | |
31 | |
32 | |
33 class CharSetProber: | |
34 def __init__(self): | |
35 pass | |
36 | |
37 def reset(self): | |
38 self._mState = constants.eDetecting | |
39 | |
40 def get_charset_name(self): | |
41 return None | |
42 | |
43 def feed(self, aBuf): | |
44 pass | |
45 | |
46 def get_state(self): | |
47 return self._mState | |
48 | |
49 def get_confidence(self): | |
50 return 0.0 | |
51 | |
52 def filter_high_bit_only(self, aBuf): | |
53 aBuf = re.sub(b'([\x00-\x7F])+', b' ', aBuf) | |
54 return aBuf | |
55 | |
56 def filter_without_english_letters(self, aBuf): | |
57 aBuf = re.sub(b'([A-Za-z])+', b' ', aBuf) | |
58 return aBuf | |
59 | |
60 def filter_with_english_letters(self, aBuf): | |
61 # TODO | |
62 return aBuf | |
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