Pihrtsoft.Text.RegularExpressions.Linq.Chars.Alphanumeric C# (CSharp) Method

        public static CharGrouping Alphanumeric() => LatinLetter().ArabicDigit();

 /// <summary>
 /// Appends a pattern that matches a latin alphabet letter or an arabic digit.
 /// </summary>
 /// <returns></returns>
 public CharGrouping Alphanumeric() => Append(Chars.Alphanumeric());