#include	<u.h>#include	<libc.h>#include	<libg.h>#include	<bio.h>#include	"proof.h" int Mode = DorS; Rectangle rpage = { 0, 0, 850, 1150 };char devname[64];double mag = DEFMAG;int dbg = 0;char *track = 0;Biobuf bin;char libfont[100] = "/lib/font/bit";char mapfile[100] = "MAP";char *mapname = "MAP"; voidmain(int argc, char *argv[]){	char c;	int dotrack = 0;		for (argv++; *argv && (**argv == '-'); argv++)		switch(argv[0][1]) {		case 'm':	/* magnification */			mag = atof(&argv[0][2]);			if (mag < 0.1 || mag > 10){				fprint(2, "ridiculous mag argument ignored\n");				mag = DEFMAG;			}			break;		case '/':			nview = atoi(&argv[0][2]);			if (nview < 1 || nview > MAXVIEW)				nview = 1;			break;		case 'x':			xyoffset.x += atoi(&argv[0][2]) * 100;			break;		case 'y':			xyoffset.y += atoi(&argv[0][2]) * 100;			break;		case 'M':	/* change MAP file */			if (argv[0][2])				strcpy(mapname, &argv[0][2]);			else {				strcpy(mapname, argv[1]);				argv++;				argc--;			}			break;		case 'F':	/* change /lib/font/bit directory */			if (argv[0][2])				strcpy(libfont, &argv[0][2]);			else {				strcpy(libfont, argv[1]);				argv++;				argc--;			}			break;		case 'd':			dbg = 1;			break;		case 't':			dotrack = 1;			break;		default:			fprint(2, "unknown option '%s' ignored!\n", *argv);			break;		}	if (*argv) {		close(0);		if (open(*argv, 0) == -1) {			perror(*argv);			exits("open failure");		}		if(dotrack)			track = *argv;	}	Binit(&bin, 0, OREAD);	sprint(mapfile, "%s/%s", libfont, mapname);	readmapfile(mapfile);	for (c = 0; c < NFONT; c++)		loadfontname(c, "??");	mapscreen();	clearscreen();	readpage(); }