/*****************************************************************
 * gmerlin - a general purpose multimedia framework and applications
 *
 * Copyright (c) 2001 - 2011 Members of the Gmerlin project
 * gmerlin-general@lists.sourceforge.net
 * http://gmerlin.sourceforge.net
 *
 * This program 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 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 * *****************************************************************/

/* Automatic generation of user documentation */

typedef enum
  {
    BG_HELP_FORMAT_PLAIN,
    BG_HELP_FORMAT_TERM,
    BG_HELP_FORMAT_MAN,
    BG_HELP_FORMAT_TEXI,
  } bg_help_format_t;

/*
 *  Remove the nth arg from an argc/argv pair
 */

void bg_cmdline_remove_arg(int * argc, char *** argv, int arg);

/* cmdline options */

typedef struct
  {
  char * arg;
  char * help_arg; /* Something like <file> */
  char * help_string;
  /* Callback will be called if present */
  void (*callback)(void * data, int * argc, char *** argv, int arg);
  /* Parameter interface */
  const bg_parameter_info_t * parameters;
  int param_single;
  } bg_cmdline_arg_t;

typedef struct
  {
  char             * name;
  bg_cmdline_arg_t * args;
  } bg_cmdline_arg_array_t;

typedef struct
  {
  char * name;
  char * desc;
  } bg_cmdline_ext_doc_t;

typedef struct
  {
  char * package;
  char * version;
  char * name;
  char * synopsis;
  char * help_before;
  const bg_cmdline_arg_array_t * args; /* Null terminated */
  
  const bg_cmdline_ext_doc_t * env;
  const bg_cmdline_ext_doc_t * files;
  
  char * help_after;
  } bg_cmdline_app_data_t;

void bg_cmdline_init(const bg_cmdline_app_data_t * app_data);

void bg_cmdline_parse(bg_cmdline_arg_t *,
                      int * argc, char *** argv, void * callback_data);


char ** bg_cmdline_get_locations_from_args(int * argc, char *** argv);

void bg_cmdline_print_help(char * argv0, bg_help_format_t);

/* Commandline -> Config registry and parameters */


void bg_cmdline_print_help_parameters(const bg_parameter_info_t * parameters,
                                      bg_help_format_t);

int bg_cmdline_apply_options(bg_cfg_section_t * section,
                             bg_set_parameter_func_t set_parameter,
                             void * data,
                             const bg_parameter_info_t * parameters,
                             const char * option_string);

void bg_cmdline_print_version(const char * application);

