Tidy.Core.Lexer.IsValidAttrName C# (CSharp) Method

        public static bool IsValidAttrName(string attr)
        {
            short map;
            char c;
            int i;

            /* first character should be a letter */
            c = attr[0];
            map = Map(c);

            if ((map & LETTER) == 0)
                return false;

            /* remaining characters should be namechars */
            for (i = 1; i < attr.Length; i++)
            {
                c = attr[i];
                map = Map(c);

                if ((map & NAMECHAR) != 0)
                    continue;

                return false;
            }

            return true;
        }