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.