#! ruby -Ku
require "kconv"

def check(str)
  if /No(0|1|2|3|4|5|6|7|8|9)+ is/ =~ str then
    print(Kconv.tosjis("○") + str + "\n")
  else
    print(Kconv.tosjis("×") + str + "\n")
  end
end

print(Kconv.tosjis("No(0|1|2|3|4|5|6|7|8|9)+ is にマッチするかどうか\n\n"))

check("No01 is Yamada")
check("No12506 is Honda")
check("No.01 is Kuroda")
check("No12.5 is Endou")