# Functions
Valid returns true if b contains only ASCII characters.
ValidBytes returns true if b is an ASCII character.
Valid returns true if b contains only printable ASCII characters.
ValidBytes returns true if b is an ASCII character.
ValidBytes returns true if b is an ASCII character.
ValidString returns true if s contains only printable ASCII characters.
ValidBytes returns true if b is an ASCII character.
ValidString returns true if s contains only ASCII characters.