namespace System.Globalization { public static class CharUnicodeInfo { public static int GetDecimalDigitValue(char ch); public static int GetDecimalDigitValue(string s, int index); public static int GetDigitValue(char ch); public static int GetDigitValue(string s, int index); public static double GetNumericValue(char ch); public static double GetNumericValue(string s, int index); public static UnicodeCategory GetUnicodeCategory(char ch); public static UnicodeCategory GetUnicodeCategory(string s, int index); } }