Source code in the nanoquery programming language

def analyze(s)
        s = str(s)
        println "Examining [" + s + "] which has a length of " + str(len(s)) + ":"

        if len(s) < 2
                println "\tAll characters in the string are unique."
                return
        end

        seen = list()
        for i in range(0, len(s) - 2)
                if s[i] in seen
                        println "\tNot all characters in the string are unique."
                        println "\t'" + s[i] + "' " + format("(0x%x)", ord(s[i])) +\
                                " is duplicated at positions " + str(i + 1) + " and " +\
                                str(s.indexOf(s[i]) + 1)
                        return
                end
                seen.append(s[i])
        end

        println "\tAll characters in the string are unique."
end

tests = {"", ".", "abcABC", "XYZ ZYX", "1234567890ABCDEFGHIJKLMN0PQRSTUVWXYZ"}
for s in tests
        analyze(s)
end