private void textSentenceBreak(int start, int stop) {
    if (textBreakCount == textBreakStart.length) {
      textBreakStart = PApplet.expand(textBreakStart);
      textBreakStop = PApplet.expand(textBreakStop);
    }
    textBreakStart[textBreakCount] = start;
    textBreakStop[textBreakCount] = stop;
    textBreakCount++;
  }