Function parseKey

key.go:60–81

parseKey parses as defined in https://httpwg.org/specs/rfc9651.html#parse-key.

(s *scanner)

// parseKey parses as defined in
// https://httpwg.org/specs/rfc9651.html#parse-key.
func parseKey(s *scanner) (string, error) {
	if s.eof() {
		return "", &UnmarshalError{s.off, ErrInvalidKeyFormat}
	}

	c := s.data[s.off]
	if !isLowerCaseAlpha(c) && c != '*' {
		return "", &UnmarshalError{s.off, ErrInvalidKeyFormat}
	}

	start := s.off
	s.off++

	for !s.eof() {
		if !isKeyChar(s.data[s.off]) {
			break
		}
		s.off++
	}

	return s.data[start:s.off], nil
}