!7

cmodule LiveCompressor {
  switchable int nPredictions = 5;
  switchable bool optimize;
  S input, output, prediction;
  transient new LCStreamingCompressor comp;
  transient S compressedText;
  
  visual centerAndSouth(jvsplit(
      dm_textAreaAsSection input(),
      dm_textAreaAsSection output()),
    dm_labelAsSection prediction());
    
  start {
    dm_onFieldChangeAndNow input(r calc);
  }
  
  void calc {
    S input = this.input;
    new Matches m;
    if (optimize && startsWith(input, compressedText, m))
      comp.append(m.rest());
    else {
      comp = new LCStreamingCompressor;
      comp.append(input);
    }
    compressedText = input;
    setField(output := lcStream_textWithBrackets(comp));
    
    setField(prediction := join(lcStream_repeatedPrediction2(nPredictions, comp)));
  }
}