223   int argn;  in parse_switches()  local
243   for (argn = 1; argn < argc; argn++) {  in parse_switches()
244     arg = argv[argn];  in parse_switches()
247       if (argn <= last_file_arg_seen) {  in parse_switches()
275       if (++argn >= argc)	/* advance to next argument */  in parse_switches()
277       if (sscanf(argv[argn], "%d", &val) != 1)  in parse_switches()
290       if (++argn >= argc)	/* advance to next argument */  in parse_switches()
292       if (keymatch(argv[argn], "int", 1)) {  in parse_switches()
294       } else if (keymatch(argv[argn], "fast", 2)) {  in parse_switches()
296       } else if (keymatch(argv[argn], "float", 2)) {  in parse_switches()
343       if (++argn >= argc)	/* advance to next argument */  in parse_switches()
345       if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1)  in parse_switches()
367       if (++argn >= argc)	/* advance to next argument */  in parse_switches()
369       outfilename = argv[argn];	/* save it away for later use */  in parse_switches()
384       if (++argn >= argc)	/* advance to next argument */  in parse_switches()
386       qualityarg = argv[argn];  in parse_switches()
390       if (++argn >= argc)	/* advance to next argument */  in parse_switches()
392       qslotsarg = argv[argn];  in parse_switches()
400       if (++argn >= argc)	/* advance to next argument */  in parse_switches()
402       qtablefile = argv[argn];  in parse_switches()
410       if (++argn >= argc)	/* advance to next argument */  in parse_switches()
412       if (sscanf(argv[argn], "%ld%c", &lval, &ch) < 1)  in parse_switches()
426       if (++argn >= argc)	/* advance to next argument */  in parse_switches()
428       samplearg = argv[argn];  in parse_switches()
436       if (++argn >= argc)	/* advance to next argument */  in parse_switches()
438       if (sscanf(argv[argn], "%u/%u",  in parse_switches()
445       if (++argn >= argc)	/* advance to next argument */  in parse_switches()
447       scansarg = argv[argn];  in parse_switches()
459       if (++argn >= argc)	/* advance to next argument */  in parse_switches()
461       if (sscanf(argv[argn], "%d", &val) != 1)  in parse_switches()
510   return argn;			/* return index of next arg (file name) */  in parse_switches()