Function get_next_command

src/main.cpp:189–221

}

std::string get_next_command() {
  std::string retval("quit");
  if ( ! std::cin.eof() ) {
    char *input_raw = readline("eval> ");
    if ( input_raw != nullptr ) {
      add_history(input_raw);

      std::string val(input_raw);
      size_t pos = val.find_first_not_of("\t \n");
      if (pos != std::string::npos)
      {
        val.erase(0, pos);
      }
      pos = val.find_last_not_of("\t \n");
      if (pos != std::string::npos)
      {
        val.erase(pos+1, std::string::npos);
      }

      retval = val;

      ::free(input_raw);
    }
  }
  if(   retval == "quit"
     || retval == "exit"
     || retval == "help"
     || retval == "version") 
  {
    retval += "(0)";
  }
  return retval;
}

// We have to wrap exit with our own because Clang has a hard time with
// function pointers to functions with special attributes (system exit being marked NORETURN)