using System.Text.RegularExpressions; namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard { public static partial class NumericCharacterValidation { public static bool IsNumeric(char value) { Regex regex = NumericRegex(); return regex.IsMatch(value.ToString()); } [GeneratedRegex("[0-9]|.")] private static partial Regex NumericRegex(); } }