ruby で文字列がJIS第２水準までかの判定 #-*= coding: utf-8 -*- def check_jis_dai2made_only? str begin puts "start" str_euc=str.encode("EUC-JP","UTF-8") rescue => eq puts eq return false end str_euc.split("").each{|s| #s2=s.unpack("H*")[0].t…