/* FCE Ultra - NES/Famicom Emulator
 *
 * Copyright notice for this file:
 *  Copyright (C) 2002 Xodnizel
 *
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

/****************************************************************/
/*			FCE Ultra				*/
/*								*/
/*	This file contains code for parsing command-line    	*/
/*	options.						*/
/*								*/
/****************************************************************/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "../../types.h"
#include "args.h"

int ParseEA(int x, int argc, char *argv[], ARGPSTRUCT *argsps)
{
	int y=0;
	int ret=1;

	do
	{
		if(!argsps[y].name)
		{
			ParseEA(x,argc,argv,(ARGPSTRUCT*)argsps[y].var);
			y++;
			continue;
		}
		if(!strcmp(argv[x],argsps[y].name))	// A match.
		{
			//ret++;
			if(argsps[y].subs)
			{
				if((x+1)>=argc)
					break;
				ret++;
				if(argsps[y].substype&0x2000)
				{
					((void (*)(char *))argsps[y].subs)(argv[x+1]);
				}
				else if(argsps[y].substype&0x8000)
				{
					*(int *)argsps[y].subs&=~(argsps[y].substype&(~0x8000));
					*(int *)argsps[y].subs|=atoi(argv[x+1])?(argsps[y].substype&(~0x8000)):0;
				}
				else
					switch(argsps[y].substype&(~0x4000))
				{
					case 0:		// Integer
						*(int *)argsps[y].subs=atoi(argv[x+1]);
						break;
					case 2:		// Double float
						*(double *)argsps[y].subs=atof(argv[x+1]);
						break;
					case 1:		// String
						if(argsps[y].substype&0x4000)
						{
							if(*(char **)argsps[y].subs)
								free(*(char **)argsps[y].subs);
							if(!( *(char **)argsps[y].subs=(char*)malloc(strlen(argv[x+1])+1) ))
								break;
						}	
						strcpy(*(char **)argsps[y].subs,argv[x+1]);
						break;
				}
			}
			if(argsps[y].var)
				*argsps[y].var=1;
		}
		y++;
	} while(argsps[y].var || argsps[y].subs);
	return ret;
}

int ParseArguments(int argc, char *argv[], ARGPSTRUCT *argsps)
{
 int x;

 for(x=0;x<argc;)
 {
  int temp = ParseEA(x,argc,argv,argsps);
  if(temp == 1 && x==argc-1)
	  return argc-1;
  x += temp;
 }
 return argc;
}