/
charsetprober.rb
executable file
·75 lines (66 loc) · 2.14 KB
/
charsetprober.rb
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######################## BEGIN LICENSE BLOCK ########################
# The Original Code is Mozilla Universal charset detector code.
#
# The Initial Developer of the Original Code is
# Netscape Communications Corporation.
# Portions created by the Initial Developer are Copyright (C) 2001
# the Initial Developer. All Rights Reserved.
#
# Contributor(s):
# Jeff Hodges - port to Ruby
# Mark Pilgrim - port to Python
# Shy Shalom - original C code
#
# 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 CharSetProber
attr_accessor :active
def initialize
end
def reset
@_mState = EDetecting
end
def get_charset_name
return nil
end
def feed(aBuf)
end
def get_state
return @_mState
end
def get_confidence
return 0.0
end
def filter_high_bit_only(aBuf)
# DO NOT USE `gsub!`
# It will remove all characters from the buffer that is later used by
# other probers. This is because gsub! removes data from the instance variable
# that will be passed to later probers, while gsub makes a new instance variable
# that will not.
newBuf = aBuf.gsub(/([\x00-\x7F])+/, ' ')
return newBuf
end
def filter_without_english_letters(aBuf)
newBuf = aBuf.gsub(/([A-Za-z])+/,' ')
return newBuf
end
def filter_with_english_letters(aBuf)
# TODO
return aBuf
end
end
end