JezK
Edit File: codingstatemachine.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 CodingStateMachine attr_accessor :active def initialize(sm) @model = sm @currentBytePos = 0 @currentCharLen = 0 reset() end def reset @currentState = EStart end def next_state(c) # for each byte we get its class # if it is first byte, we also get byte length b = c.bytes.first byteCls = @model['classTable'][b] if @currentState == EStart @currentBytePos = 0 @currentCharLen = @model['charLenTable'][byteCls] end # from byte's class and stateTable, we get its next state @currentState = @model['stateTable'][@currentState * @model['classFactor'] + byteCls] @currentBytePos += 1 return @currentState end def get_current_charlen return @currentCharLen end def get_coding_state_machine return @model['name'] end end end