C++ (Cpp) calc_follow_table Examples

Example #1

static PTBL_ParseTable generateParseTable() {
  int i;

  ATermList vertex; 

  PTBL_State state;
  PTBL_States statelist = PTBL_makeStatesEmpty();
  PTBL_Gotos gotos; 
  PTBL_Choices actions;

  
  calc_first_table();
  calc_follow_table();
  createDFA();

  for (i = PGEN_getNumberOfStates()-1; i >= 0; i--) {
    vertex = PGEN_getStateOfStateNumber(i);

    gotos = (PTBL_Gotos)PGEN_getGotosOfState(vertex);
    if (!gotos) {
      gotos = PTBL_makeGotosEmpty();
    } 
    else if (PGEN_getStatsFlag) {
      PGEN_STATS_increaseGotos(PTBL_getGotosLength(gotos));
    }

    actions = PGEN_getActionsOfState(vertex);
    if (!actions) {
      actions = PTBL_makeChoicesEmpty();
    }
    else if (PGEN_getStatsFlag) {
      PGEN_STATS_increaseActions(PTBL_getChoicesLength(actions));
    }

    state = PTBL_makeStateDefault(i, gotos, actions);
    statelist = PTBL_makeStatesMany(state, statelist);
  }

  if (PGEN_getStatsFlag) { PGEN_STATS_print(); }

  return PTBL_makeParseTableParseTable(PTBL_makeVersionDefault(), PGEN_getInitialStateNumber(), PGEN_getLabelSection(), statelist, PGEN_getPrioSection());
}

Example #2

//==========================================================================================================
//==========================================================================================================
Grammar::Grammar(string grammar_file) {
    read_grammar_file(grammar_file);
    calc_follow_table();
}