JezK
Edit File: escprober.rb
######################## BEGIN LICENSE BLOCK ######################## # The Original Code is mozilla.org code. # # The Initial Developer of the Original Code is # Netscape Communications Corporation. # Portions created by the Initial Developer are Copyright (C) 1998 # the Initial Developer. All Rights Reserved. # # Contributor(s): # Jeff Hodges - port to Ruby # Mark Pilgrim - port to Python # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2.1 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library; if not, write to the Free Software # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA # 02110-1301 USA ######################### END LICENSE BLOCK ######################### module CharDet class EscCharSetProber < CharSetProber def initialize super() @codingSM = [ CodingStateMachine.new(HZSMModel), CodingStateMachine.new(ISO2022CNSMModel), CodingStateMachine.new(ISO2022JPSMModel), CodingStateMachine.new(ISO2022KRSMModel) ] reset() end def reset super() for codingSM in @codingSM next if !codingSM codingSM.active = true codingSM.reset() end @activeSM = @codingSM.length @detectedCharset = nil end def get_charset_name return @detectedCharset end def get_confidence if @detectedCharset return 0.99 else return 0.00 end end 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 end end