use of C++ API for running a file (bug #42307) * octave-cmd.cc: New file providing the new command class octave_cmd; (prepare_command_editor): common action that all derived command classes use for method execute; (octave_cmd_exec::execute): execute method of derived class for executing ordinary commands in the terminal; (octave_cmd_eval::execute): execute method of derived class for running a file (as function if it is a valid identifier or as script) * octave-cmd.h: providing base and derived classes * main-window.cc (main_window): _cmd_queue is not a pointer anymore; (~main_window): _cmd_queue is not a pointer anymore; (execute_command_in_terminal): use new command class for queuing a command; (run_file_in_terminal): check for valid identifier moved from here to the execute method of the related command class; (run_file_callback): use new class for queuing command, path check moved from here into the execute method of the command class; (queue_command): gets new command class instead of a string as input; (closeEvent): queue command class instead of string; (execute_command_callback): command queue contains command class instances; * main-window.h: use new octave-cmd class for queue_command, the command queue is not a pointer anymore * module.mk: new files octave-cmd.cc and octave-cmd.h

/*

Copyright (C) 2012-2015 John W. Eaton

This file is part of Octave.

Octave is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 3 of the License, or (at your
option) any later version.

Octave is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License
along with Octave; see the file COPYING.  If not, see
<http://www.gnu.org/licenses/>.

*/

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "defaults.h"
#include "octave.h"
#include "sysdep.h"

int
main (int argc, char **argv)
{
  octave_process_command_line (argc, argv);

  sysdep_init ();

  install_defaults ();

  octave_initialize_interpreter (argc, argv, 0);

  return octave_execute_interpreter ();
}