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1"""
2All of the Enums that are used throughout the chardet package.
4:author: Dan Blanchard (dan.blanchard@gmail.com)
5"""
8class InputState(object):
9 """
10 This enum represents the different states a universal detector can be in.
11 """
12 PURE_ASCII = 0
13 ESC_ASCII = 1
14 HIGH_BYTE = 2
17class LanguageFilter(object):
18 """
19 This enum represents the different language filters we can apply to a
20 ``UniversalDetector``.
21 """
22 CHINESE_SIMPLIFIED = 0x01
23 CHINESE_TRADITIONAL = 0x02
24 JAPANESE = 0x04
25 KOREAN = 0x08
26 NON_CJK = 0x10
27 ALL = 0x1F
28 CHINESE = CHINESE_SIMPLIFIED | CHINESE_TRADITIONAL
29 CJK = CHINESE | JAPANESE | KOREAN
32class ProbingState(object):
33 """
34 This enum represents the different states a prober can be in.
35 """
36 DETECTING = 0
37 FOUND_IT = 1
38 NOT_ME = 2
41class MachineState(object):
42 """
43 This enum represents the different states a state machine can be in.
44 """
45 START = 0
46 ERROR = 1
47 ITS_ME = 2
50class SequenceLikelihood(object):
51 """
52 This enum represents the likelihood of a character following the previous one.
53 """
54 NEGATIVE = 0
55 UNLIKELY = 1
56 LIKELY = 2
57 POSITIVE = 3
59 @classmethod
60 def get_num_categories(cls):
61 """:returns: The number of likelihood categories in the enum."""
62 return 4
65class CharacterCategory(object):
66 """
67 This enum represents the different categories language models for
68 ``SingleByteCharsetProber`` put characters into.
70 Anything less than CONTROL is considered a letter.
71 """
72 UNDEFINED = 255
73 LINE_BREAK = 254
74 SYMBOL = 253
75 DIGIT = 252
76 CONTROL = 251