package httpsfv

// isLowerCaseAlpha checks if c is a lower cased alpha character.
func isLowerCaseAlpha( byte) bool {
	return 'a' <=  &&  <= 'z'
}

// isAlpha checks if c is an alpha character.
func isAlpha( byte) bool {
	return ('a' <=  &&  <= 'z') || ('A' <=  &&  <= 'Z')
}

// isDigit checks if c is a digit.
func isDigit( byte) bool {
	return '0' <=  &&  <= '9'
}