private LineSegmentList formatFileLine(FileLine line) {
   final String text = getDetabbedText(line);
   int index = text.indexOf(':');
   if (index > 0) {
     addSegment(text, 0, index + 1, FORMAT_HEADER_NAME);
     addSegment(text, index + 1, FORMAT_HEADER_VALUE);
   } else addSegment(text, line.visited() ? FORMAT_VISITED : FORMAT_TEXT);
   return segmentList;
 }