private static int HexDigit()

in csharp/src/Containers/UUID.cs [1022:1048]

• 27 lines of code
• 18 McCabe index (conditional complexity)

		private static int HexDigit(char c, UUIDParseFormat format)
		{
			if (c >= '0' && c <= '9')
				return c - '0';
			switch (format)
			{
				case UUIDParseFormat.LowerCase:
				case UUIDParseFormat.LowerCaseWithoutDashes:
					if (c >= 'a' && c <= 'f')
						return 10 + c - 'a';
					return -1;
				case UUIDParseFormat.UpperCase:
				case UUIDParseFormat.UpperCaseWithoutDashes:
					if (c >= 'A' && c <= 'F')
						return 10 + c - 'A';
					return -1;
				case UUIDParseFormat.AnyCase:
				case UUIDParseFormat.AnyCaseWithoutDashes:
				case UUIDParseFormat.Any:
					if (c >= 'a' && c <= 'f')
						return 10 + c - 'a';
					if (c >= 'A' && c <= 'F')
						return 10 + c - 'A';
					return -1;
			}
			return -1;
		}