263     if (keymatch(arg, "arithmetic", 1)) {  in parse_switches()
273     } else if (keymatch(arg, "baseline", 1)) {  in parse_switches()
277     } else if (keymatch(arg, "dct", 2)) {  in parse_switches()
281       if (keymatch(argv[argn], "int", 1)) {  in parse_switches()
283       } else if (keymatch(argv[argn], "fast", 2)) {  in parse_switches()
285       } else if (keymatch(argv[argn], "float", 2)) {  in parse_switches()
290     } else if (keymatch(arg, "debug", 1) || keymatch(arg, "verbose", 1)) {  in parse_switches()
305     } else if (keymatch(arg, "version", 4)) {  in parse_switches()
310     } else if (keymatch(arg, "grayscale", 2) ||  in parse_switches()
311                keymatch(arg, "greyscale", 2)) {  in parse_switches()
315     } else if (keymatch(arg, "rgb", 3)) {  in parse_switches()
319     } else if (keymatch(arg, "icc", 1)) {  in parse_switches()
325     } else if (keymatch(arg, "maxmemory", 3)) {  in parse_switches()
338     } else if (keymatch(arg, "optimize", 1) || keymatch(arg, "optimise", 1)) {  in parse_switches()
348     } else if (keymatch(arg, "outfile", 4)) {  in parse_switches()
354     } else if (keymatch(arg, "progressive", 1)) {  in parse_switches()
365     } else if (keymatch(arg, "memdst", 2)) {  in parse_switches()
375     } else if (keymatch(arg, "quality", 1)) {  in parse_switches()
381     } else if (keymatch(arg, "qslots", 2)) {  in parse_switches()
391     } else if (keymatch(arg, "qtables", 2)) {  in parse_switches()
398     } else if (keymatch(arg, "restart", 1)) {  in parse_switches()
417     } else if (keymatch(arg, "sample", 2)) {  in parse_switches()
427     } else if (keymatch(arg, "scans", 4)) {  in parse_switches()
440     } else if (keymatch(arg, "smooth", 2)) {  in parse_switches()
452     } else if (keymatch(arg, "targa", 1)) {  in parse_switches()