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!7

sclass BottomUpParser > DynPrintLogWithInput {
  transient S lastOutput;
  
  start {
    dm_useLocallyCopiedMechLists(); set flag NoFancyMechParsing.
    doEvery(5000, r { update(inputChooser.input()) });
  }
  
  void update(S s) {
    temp enter();
    
    final new AI_BottomUpParser1 parser;
    parser.parse(s);
    
    S rendered = hijackPrint(r {
      parser.printWordsAndGroups();
      parser.printConstituentsOfFullGroup();
      AI_BottomUpParser1.Word w = parser.fullGroup();
      if (w == null) ret;
      
      for (S cat : w.classes) {
        L<ai_Reconstructed> l = ai_buParser1_reconstructedProductions(parser, ai_buParser_parseWeightedProductions(), w, cat);
        print("Reconstructions as " + cat + ":");
        pnl(l);
      }
    });

    bool shouldPrint = neq(rendered, lastOutput);
    lastOutput = rendered;
    if (shouldPrint) print("\n> " + s + "\n" + rendered);
  }
}