io.IoLexer.readCharIn C# (CSharp) 메소드

        public int readCharIn(string s)
        {
            if (!onNULL())
            {
                char c = nextChar();
                if (s.IndexOf(c) != -1)
                {
                    return 1;
                }
                prevChar();
            }
            return 0;
        }