+ case 'l': /* literal output */
+ case 'p': /* print using ``pr'' */
+ case 't': /* print troff output */
+ case 'c': /* print cifplot output */
+ case 'v': /* print vplot output */
+ format = arg[1];
+ break;
+
+ case '4': /* troff fonts */
+ case '3':
+ case '2':
+ case '1':
+ if (argc > 1) {
+ argc--;
+ fonts[arg[1] - '1'] = *++argv;
+ format = 't';
+ }
+ break;
+
+ case 'w': /* versatec page width */
+ width = arg+2;