Class: CharDet::EscCharSetProber

Inherits:
CharSetProber show all
Defined in:
lib/rchardet/escprober.rb

Instance Attribute Summary

Attributes inherited from CharSetProber

#active

Instance Method Summary collapse

Methods inherited from CharSetProber

#filter_high_bit_only, #filter_with_english_letters, #filter_without_english_letters, #get_state

Constructor Details

#initialize ⇒ EscCharSetProber

Returns a new instance of EscCharSetProber.



31
32
33
34
35
36
37
38
39
40
 
# File 'lib/rchardet/escprober.rb', line 31

def initialize
  super()
  @codingSM = [ 
                 CodingStateMachine.new(HZSMModel),
                 CodingStateMachine.new(ISO2022CNSMModel),
                 CodingStateMachine.new(ISO2022JPSMModel),
                 CodingStateMachine.new(ISO2022KRSMModel)
                ]
  reset()
end

Instance Method Details

#feed(aBuf) ⇒ Object 



65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
 
# File 'lib/rchardet/escprober.rb', line 65

def feed(aBuf)
  aBuf.each_byte do |b|
    c = b.chr
    for codingSM in @codingSM
      next unless codingSM
      next unless codingSM.active
      codingState = codingSM.next_state(c)
      if codingState == EError
        codingSM.active = false
        @activeSM -= 1
        if @activeSM <= 0
          @state = ENotMe
          return get_state()
        end
      elsif codingState == EItsMe
        @state = EFoundIt
        @detectedCharset = codingSM.get_coding_state_machine()
        return get_state()
      end
    end
  end

  return get_state()
end

#get_charset_name ⇒ Object 



53
54
55
 
# File 'lib/rchardet/escprober.rb', line 53

def get_charset_name
  return @detectedCharset
end

#get_confidence ⇒ Object 



57
58
59
60
61
62
63
 
# File 'lib/rchardet/escprober.rb', line 57

def get_confidence
  if @detectedCharset
    return 0.99
  else
    return 0.00
  end
end

#reset ⇒ Object 



42
43
44
45
46
47
48
49
50
51
 
# File 'lib/rchardet/escprober.rb', line 42

def reset
  super()
  for codingSM in @codingSM
    next if !codingSM
    codingSM.active = true
    codingSM.reset()
  end
  @activeSM = @codingSM.length
  @detectedCharset = nil
end