# File lib/tmail/vendor/rchardet-1.3/lib/rchardet/chardistribution.rb, line 172 def get_order(aStr) # for big5 encoding, we are interested # first byte range: 0xa4 -- 0xfe # second byte range: 0x40 -- 0x7e , 0xa1 -- 0xfe # no validation needed here. State machine has done that if aStr[0..0] >= "\xA4" if aStr[1..1] >= "\xA1" return 157 * (aStr[0] - 0xA4) + aStr[1] - 0xA1 + 63 else return 157 * (aStr[0] - 0xA4) + aStr[1] - 0x40 end else return -1 end end
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