/ cat / char
Character Test Functions

`IsAscii` | Tests if a string contains only ASCII characters.
`IsBlank` | Tests if a string contains only blank characters.
`IsDigit` | Tests if a string contains only digits.
`IsHexa` | Tests if a string contains only hexadecimal digits.
`IsLCase` | Tests if a string contains only lowercase letters.
`IsLetter` | Tests if a string contains only letters.
`IsPunct` | Tests if a string contains only printable non-alphanumeric characters.
`IsSpace` | Tests if a string contains only space characters.
`IsUCase` | Tests if a string contains only uppercase letters.