153     if (keymatch(arg, "arithmetic", 1)) {  in parse_switches()
163     } else if (keymatch(arg, "copy", 1)) {  in parse_switches()
167       if (keymatch(argv[argn], "none", 1)) {  in parse_switches()
169       } else if (keymatch(argv[argn], "comments", 1)) {  in parse_switches()
171       } else if (keymatch(argv[argn], "all", 1)) {  in parse_switches()
176     } else if (keymatch(arg, "debug", 1) || keymatch(arg, "verbose", 1)) {  in parse_switches()
188     } else if (keymatch(arg, "flip", 1)) {  in parse_switches()
192       if (keymatch(argv[argn], "horizontal", 1))  in parse_switches()
194       else if (keymatch(argv[argn], "vertical", 1))  in parse_switches()
199     } else if (keymatch(arg, "grayscale", 1) || keymatch(arg, "greyscale",1)) {  in parse_switches()
207     } else if (keymatch(arg, "maxmemory", 3)) {  in parse_switches()
220     } else if (keymatch(arg, "optimize", 1) || keymatch(arg, "optimise", 1)) {  in parse_switches()
230     } else if (keymatch(arg, "outfile", 4)) {  in parse_switches()
236     } else if (keymatch(arg, "progressive", 1)) {  in parse_switches()
247     } else if (keymatch(arg, "restart", 1)) {  in parse_switches()
266     } else if (keymatch(arg, "rotate", 2)) {  in parse_switches()
270       if (keymatch(argv[argn], "90", 2))  in parse_switches()
272       else if (keymatch(argv[argn], "180", 3))  in parse_switches()
274       else if (keymatch(argv[argn], "270", 3))  in parse_switches()
279     } else if (keymatch(arg, "scans", 1)) {  in parse_switches()
292     } else if (keymatch(arg, "transpose", 1)) {  in parse_switches()
296     } else if (keymatch(arg, "transverse", 6)) {  in parse_switches()
300     } else if (keymatch(arg, "trim", 3)) {  in parse_switches()