String? _parseTitle()

in lib/src/inline_parser.dart [1317:1360]

• 37 lines of code
• 15 McCabe index (conditional complexity)

  String? _parseTitle(InlineParser parser) {
    _moveThroughWhitespace(parser);
    if (parser.isDone) return null;

    // The whitespace should be followed by a title delimiter.
    var delimiter = parser.charAt(parser.pos);
    if (delimiter != $apostrophe &&
        delimiter != $quote &&
        delimiter != $lparen) {
      return null;
    }

    var closeDelimiter = delimiter == $lparen ? $rparen : delimiter;
    parser.advanceBy(1);

    // Now we look for an un-escaped closing delimiter.
    var buffer = StringBuffer();
    while (true) {
      var char = parser.charAt(parser.pos);
      if (char == $backslash) {
        parser.advanceBy(1);
        var next = parser.charAt(parser.pos);
        if (next != $backslash && next != closeDelimiter) {
          buffer.writeCharCode(char);
        }
        buffer.writeCharCode(next);
      } else if (char == closeDelimiter) {
        break;
      } else {
        buffer.writeCharCode(char);
      }
      parser.advanceBy(1);
      if (parser.isDone) return null;
    }
    var title = buffer.toString();

    // Advance past the closing delimiter.
    parser.advanceBy(1);
    if (parser.isDone) return null;
    _moveThroughWhitespace(parser);
    if (parser.isDone) return null;
    if (parser.charAt(parser.pos) != $rparen) return null;
    return title;
  }