class CharDet::GB18030DistributionAnalysis

Public Class Methods

new() click to toggle source
Calls superclass method CharDet::CharDistributionAnalysis::new
# File lib/rchardet/chardistribution.rb, line 153
def initialize
  super()
  @charToFreqOrder = GB18030CharToFreqOrder
  @tableSize = GB18030_TABLE_SIZE
  @typicalDistributionRatio = GB18030_TYPICAL_DISTRIBUTION_RATIO
end

Public Instance Methods

get_order(aStr) click to toggle source
# File lib/rchardet/chardistribution.rb, line 160
def get_order(aStr)
  # for GB18030 encoding, we are interested
  #  first  byte range: 0xb0 -- 0xfe
  #  second byte range: 0xa1 -- 0xfe
  # no validation needed here. State machine has done that
  if (aStr[0, 1] >= "\xB0") and (aStr[1, 1] >= "\xA1")
    bytes = aStr.bytes.to_a
    return 94 * (bytes[0] - 0xB0) + bytes[1] - 0xA1
  else
    return -1
  end
end