String _scanTagUri()

in lib/src/scanner.dart [1069:1097]

• 14 lines of code
• 8 McCabe index (conditional complexity)

  String _scanTagUri({String? head, bool flowSeparators = true}) {
    var length = head == null ? 0 : head.length;
    var buffer = StringBuffer();

    // Copy the head if needed.
    //
    // Note that we don't copy the leading '!' character.
    if (length > 1) buffer.write(head!.substring(1));

    // The set of characters that may appear in URI is as follows:
    //
    //      '0'-'9', 'A'-'Z', 'a'-'z', '_', '-', ';', '/', '?', ':', '@', '&',
    //      '=', '+', '$', ',', '.', '!', '~', '*', '\'', '(', ')', '[', ']',
    //      '%'.
    //
    // In a shorthand tag annotation, the flow separators ',', '[', and ']' are
    // disallowed.
    var start = _scanner.position;
    var char = _scanner.peekChar();
    while (_isTagChar ||
        (flowSeparators &&
            (char == COMMA || char == LEFT_SQUARE || char == RIGHT_SQUARE))) {
      _scanner.readChar();
      char = _scanner.peekChar();
    }

    // libyaml manually decodes the URL, but we don't have to do that.
    return Uri.decodeFull(_scanner.substring(start));
  }