Element _parseRow()

in lib/src/block_parser.dart [956:1022]
51 lines of code
12 McCabe index (conditional complexity)

  Element _parseRow(
      BlockParser parser, List<String?> alignments, String cellType) {
    var line = parser.current;
    var cells = <String>[];
    var index = _walkPastOpeningPipe(line);
    var cellBuffer = StringBuffer();

    while (true) {
      if (index >= line.length) {
        // This row ended without a trailing pipe, which is fine.
        cells.add(cellBuffer.toString().trimRight());
        cellBuffer.clear();
        break;
      }
      var ch = line.codeUnitAt(index);
      if (ch == $backslash) {
        if (index == line.length - 1) {
          // A table row ending in a backslash is not well-specified, but it
          // looks like GitHub just allows the character as part of the text of
          // the last cell.
          cellBuffer.writeCharCode(ch);
          cells.add(cellBuffer.toString().trimRight());
          cellBuffer.clear();
          break;
        }
        var escaped = line.codeUnitAt(index + 1);
        if (escaped == $pipe) {
          // GitHub Flavored Markdown has a strange bit here; the pipe is to be
          // escaped before any other inline processing. One consequence, for
          // example, is that "| `\|` |" should be parsed as a cell with a code
          // element with text "|", rather than "\|". Most parsers are not
          // compliant with this corner, but this is what is specified, and what
          // GitHub does in practice.
          cellBuffer.writeCharCode(escaped);
        } else {
          // The [InlineParser] will handle the escaping.
          cellBuffer.writeCharCode(ch);
          cellBuffer.writeCharCode(escaped);
        }
        index += 2;
      } else if (ch == $pipe) {
        cells.add(cellBuffer.toString().trimRight());
        cellBuffer.clear();
        // Walk forward past any whitespace which leads the next cell.
        index++;
        index = _walkPastWhitespace(line, index);
        if (index >= line.length) {
          // This row ended with a trailing pipe.
          break;
        }
      } else {
        cellBuffer.writeCharCode(ch);
        index++;
      }
    }
    parser.advance();
    var row = [
      for (var cell in cells) Element(cellType, [UnparsedContent(cell)])
    ];

    for (var i = 0; i < row.length && i < alignments.length; i++) {
      if (alignments[i] == null) continue;
      row[i].attributes['style'] = 'text-align: ${alignments[i]};';
    }

    return Element('tr', row);
  }