void _parseSetCookieValue()

in lib/src/http_headers_impl.dart [868:944]
70 lines of code
23 McCabe index (conditional complexity)

  void _parseSetCookieValue(String s) {
    int index = 0;

    bool done() => index == s.length;

    String parseName() {
      int start = index;
      while (!done()) {
        if (s[index] == "=") break;
        index++;
      }
      return s.substring(start, index).trim();
    }

    String parseValue() {
      int start = index;
      while (!done()) {
        if (s[index] == ";") break;
        index++;
      }
      return s.substring(start, index).trim();
    }

    void parseAttributes() {
      String parseAttributeName() {
        int start = index;
        while (!done()) {
          if (s[index] == "=" || s[index] == ";") break;
          index++;
        }
        return s.substring(start, index).trim().toLowerCase();
      }

      String parseAttributeValue() {
        int start = index;
        while (!done()) {
          if (s[index] == ";") break;
          index++;
        }
        return s.substring(start, index).trim().toLowerCase();
      }

      while (!done()) {
        String name = parseAttributeName();
        String value = "";
        if (!done() && s[index] == "=") {
          index++; // Skip the = character.
          value = parseAttributeValue();
        }
        if (name == "expires") {
          expires = parseCookieDate(value);
        } else if (name == "max-age") {
          maxAge = int.parse(value);
        } else if (name == "domain") {
          domain = value;
        } else if (name == "path") {
          path = value;
        } else if (name == "httponly") {
          httpOnly = true;
        } else if (name == "secure") {
          secure = true;
        }
        if (!done()) index++; // Skip the ; character
      }
    }

    name = parseName();
    if (done() || name.isEmpty) {
      throw HttpException("Failed to parse header value [$s]");
    }
    index++; // Skip the = character.
    value = parseValue();
    _validate();
    if (done()) return;
    index++; // Skip the ; character.
    parseAttributes();
  }