checkForASCII()
Do a scan checking for whether the contents are all-ASCII.
Declaration
mutating func checkForASCII() -> BoolDiscussion
Updates the isKnownASCII bit if contents are all-ASCII.
Do a scan checking for whether the contents are all-ASCII.
mutating func checkForASCII() -> BoolUpdates the isKnownASCII bit if contents are all-ASCII.