| IsAnyOf | Determines if a character matches any character in a sent array. |
| IsHex | Returns true if char is hexadecimal digit. |
| IsInRange | Tests a character to determine if it is between a specified character range |
| IsNumeric | Tests a character to determine if is a common part of a numeric string (digits or one of "+ - , .") |
| IsWordTerminator | Tests a character to determine if it marks the end of a typical English word. |
| RegexEncode | Encodes the specified Unicode character in proper Regular Expression format. |
| ToLower | Converts value to lower case. |
| ToUpper | Converts value to upper case. |