to_geta

#!/usr/bin/ruby1.8 -Ku

require "iconv"

GETA = [0x3013].pack("U")

def to_geta(encoding, str, alter = GETA)
    cd = Iconv.new(encoding, "utf8")
    chars = []
    str.each_char do |char|
        begin
            cd.iconv(char)
        rescue Iconv::IllegalSequence => e
            char = block_given? ? yield(e.failed) : alter
        end
        chars << char
     end
     chars.join
end

test_str = "漢字♥♡あいゔ①②③"

puts to_geta("utf8",  test_str)
puts to_geta("cp932", test_str)
puts to_geta("sjis",  test_str, "X")