private static function consumeDestinationAndTitle()

in src/inlines/Link.php [226:272]

• 38 lines of code
• 9 McCabe index (conditional complexity)

  private static function consumeDestinationAndTitle(
    string $markdown,
    int $offset,
  ): ?(string, ?string, int) {
    $len = Str\length($markdown);
    if ($offset === $len || $markdown[$offset] !== '(') {
      return null;
    }
    $offset++;

    $maybe_offset = StrPos\trim_left($markdown, $offset);
    $slice = Str\slice($markdown, $maybe_offset);
    $destination = consume_link_destination($slice);

    if ($destination !== null) {
      list($destination, $consumed) = $destination;
    } else {
      $destination = '';
      $consumed = 0;
    }

    $offset = StrPos\trim_left($markdown, $maybe_offset + $consumed);

    if ($offset === $len) {
      return null;
    }

    $slice = Str\slice($markdown, $offset);
    $title = consume_link_title($slice);
    if ($title !== null) {
      list($title, $consumed) = $title;
      $offset = StrPos\trim_left($markdown, $offset + $consumed);
    } else {
      // make title ?markdown, instead of markdown|?(markdown, markdown)
      $title = null;
    }

    if ($offset === $len) {
      return null;
    }

    if ($markdown[$offset] !== ')') {
      return null;
    }

    return tuple($destination, $title, $offset + 1);
  }