90 lines
2.6 KiB
Ruby
Executable File
90 lines
2.6 KiB
Ruby
Executable File
######################## BEGIN LICENSE BLOCK ########################
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# The Original Code is mozilla.org code.
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#
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# The Initial Developer of the Original Code is
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# Netscape Communications Corporation.
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# Portions created by the Initial Developer are Copyright (C) 1998
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# the Initial Developer. All Rights Reserved.
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#
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# Contributor(s):
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# Jeff Hodges - port to Ruby
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# Mark Pilgrim - port to Python
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# This library 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 GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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# 02110-1301 USA
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######################### END LICENSE BLOCK #########################
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module CharDet
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class EscCharSetProber < CharSetProber
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def initialize
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super()
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@_mCodingSM = [ CodingStateMachine.new(HZSMModel),
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CodingStateMachine.new(ISO2022CNSMModel),
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CodingStateMachine.new(ISO2022JPSMModel),
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CodingStateMachine.new(ISO2022KRSMModel) ]
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reset()
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end
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def reset
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super()
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for codingSM in @_mCodingSM
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next if not codingSM
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codingSM.active = true
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codingSM.reset()
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end
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@_mActiveSM = @_mCodingSM.length
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@_mDetectedCharset = nil
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end
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def get_charset_name
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return @_mDetectedCharset
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end
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def get_confidence
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if @_mDetectedCharset
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return 0.99
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else
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return 0.00
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end
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end
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def feed(aBuf)
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aBuf.each_byte do |b|
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c = b.chr
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for codingSM in @_mCodingSM
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next unless codingSM
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next unless codingSM.active
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codingState = codingSM.next_state(c)
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if codingState == EError
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codingSM.active = false
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@_mActiveSM -= 1
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if @_mActiveSM <= 0
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@_mState = ENotMe
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return get_state()
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end
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elsif codingState == EItsMe
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@_mState = EFoundIt
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@_mDetectedCharset = codingSM.get_coding_state_machine()
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return get_state()
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end
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end
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end
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return get_state()
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end
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end
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end
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