Class: CharDet::CharSetGroupProber

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

Direct Known Subclasses

MBCSGroupProber, SBCSGroupProber

Instance Attribute Summary collapse

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 ⇒ CharSetGroupProber

Returns a new instance of CharSetGroupProber.



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# File 'lib/rchardet/charsetgroupprober.rb', line 32

def initialize
  super
  @_mActiveNum = 0
  @_mProbers = []
  @_mBestGuessProber = nil
end

Instance Attribute Details

#_mProbers ⇒ Object

Returns the value of attribute _mProbers.



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# File 'lib/rchardet/charsetgroupprober.rb', line 31

def _mProbers
  @_mProbers
end

Instance Method Details

#feed(aBuf) ⇒ Object 



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# File 'lib/rchardet/charsetgroupprober.rb', line 62

def feed(aBuf)
  for prober in @_mProbers
  	next unless prober
  	next unless prober.active
  	st = prober.feed(aBuf)
  	next unless st
  	if st == EFoundIt
  	  @_mBestGuessProber = prober
  	  return get_state()
  	elsif st == ENotMe
  	  prober.active = false
  	  @_mActiveNum -= 1
  	  if @_mActiveNum <= 0
  	    @_mState = ENotMe
  	    return get_state()
  	  end
  	end
  end
  return get_state()
end

#get_charset_name ⇒ Object 



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# File 'lib/rchardet/charsetgroupprober.rb', line 53

def get_charset_name
  if not @_mBestGuessProber
  	get_confidence()
  	return nil unless @_mBestGuessProber
  	#                self._mBestGuessProber = self._mProbers[0]
  end
  return @_mBestGuessProber.get_charset_name()
end

#get_confidence ⇒ Object 



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# File 'lib/rchardet/charsetgroupprober.rb', line 83

def get_confidence()
  st = get_state()
  if st == EFoundIt
  	return 0.99
        elsif st == ENotMe
  	return 0.01
        end
        bestConf = 0.0
        @_mBestGuessProber = nil
        for prober in @_mProbers
  	next unless prober
  	unless prober.active
  	  $stderr << "#{prober.get_charset_name()} not active\n" if $debug
  	  next
  	end
  	cf = prober.get_confidence()
  	$stderr << "#{prober.get_charset_name} confidence = #{cf}\n" if $debug
  	if bestConf < cf
  	  bestConf = cf
  	  @_mBestGuessProber = prober
  	end
  end
  return 0.0 unless @_mBestGuessProber
  return bestConf
  #        else:
  #            self._mBestGuessProber = self._mProbers[0]
  #            return self._mBestGuessProber.get_confidence()
end

#reset ⇒ Object 



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# File 'lib/rchardet/charsetgroupprober.rb', line 39

def reset
  super
  @_mActiveNum = 0

  for prober in @_mProbers
  	if prober
  	  prober.reset()
  	  prober.active = true
  	  @_mActiveNum += 1
  	end
  end
  @_mBestGuessProber = nil
end