Example #1
0
Argument::Argument(const std::string& str,
                   SymbolTable symbol_table,
                   bool isRel,
                   Log log)
{
  StrVarMap v_map;

  if(str[0] != '(')
  {
    if(str[0] == '?')
    {
      t = Argument::Var;
      val = str;
      return;
    }

    Symbol* sym;
    size_t id = symbol_table.CheckEntry(str, 0, isRel, sym);

    if(sym == NULL) id = symbol_table.AddEntry(str, Location(), 0, isRel);

    if(isRel)
      t = Argument::Relation;
    else t = Argument::Function;
    value = id;
    return;
  }

  std::string cmd;
  StringVec args;
  if(!SeparateCommand(str, cmd, args, log))
  {
    log.Fatal << "Unable to construct argument from " << str << std::endl;
    return;
  }

  Symbol* sym;
  size_t id = symbol_table.CheckEntry(cmd, args.size(), isRel, sym);

  if(sym == NULL)
    id = symbol_table.AddEntry(cmd, Location(), args.size(), isRel);

  if(isRel)
    t = Argument::Relation;
  else t = Argument::Function;
  value = id;

  for(size_t i = 0;i < args.size();i++)
  {
    Argument *arg;
    if(id == SymbolTable::NotID || id == SymbolTable::OrID)
      arg = ConstructArgument(args[i], v_map, symbol_table, true, log);
    else
      arg = ConstructArgument(args[i], v_map, symbol_table, false, log);

    if(arg != NULL) this->args.push_back(arg);
  }
}