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1 | /* |
2 | * Copyright (c) 1988 Mark Nudleman | |
3 | * Copyright (c) 1988 Regents of the University of California. | |
4 | * All rights reserved. | |
5 | * | |
6 | * This code is derived from software contributed to Berkeley by | |
7 | * Mark Nudleman. | |
8 | * | |
9 | * Redistribution and use in source and binary forms are permitted | |
10 | * provided that the above copyright notice and this paragraph are | |
11 | * duplicated in all such forms and that any documentation, | |
12 | * advertising materials, and other materials related to such | |
13 | * distribution and use acknowledge that the software was developed | |
14 | * by the University of California, Berkeley. The name of the | |
15 | * University may not be used to endorse or promote products derived | |
16 | * from this software without specific prior written permission. | |
17 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
18 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
19 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
20 | */ | |
21 | ||
22 | #ifndef lint | |
6b4f8beb | 23 | static char sccsid[] = "@(#)command.c 5.3 (Berkeley) %G%"; |
bfe13c81 KB |
24 | #endif /* not lint */ |
25 | ||
26 | /* | |
27 | * User-level command processor. | |
28 | */ | |
29 | ||
30 | #include "less.h" | |
31 | #include "position.h" | |
32 | #include "cmd.h" | |
33 | ||
34 | #define NO_MCA 0 | |
35 | #define MCA_DONE 1 | |
36 | #define MCA_MORE 2 | |
37 | ||
38 | extern int erase_char, kill_char; | |
39 | extern int ispipe; | |
40 | extern int sigs; | |
41 | extern int quit_at_eof; | |
42 | extern int hit_eof; | |
43 | extern int sc_width; | |
44 | extern int sc_height; | |
45 | extern int sc_window; | |
46 | extern int curr_ac; | |
47 | extern int ac; | |
48 | extern int quitting; | |
49 | extern int scroll; | |
50 | extern char *first_cmd; | |
51 | extern char *every_first_cmd; | |
52 | extern char version[]; | |
53 | extern char *current_file; | |
bfe13c81 | 54 | extern char *editor; |
bfe13c81 KB |
55 | extern int screen_trashed; /* The screen has been overwritten */ |
56 | ||
57 | static char cmdbuf[120]; /* Buffer for holding a multi-char command */ | |
bfe13c81 KB |
58 | static char *cp; /* Pointer into cmdbuf */ |
59 | static int cmd_col; /* Current column of the multi-char command */ | |
60 | static int mca; /* The multicharacter command (action) */ | |
61 | static int last_mca; /* The previous mca */ | |
62 | static int number; /* The number typed by the user */ | |
63 | static int wsearch; /* Search for matches (1) or non-matches (0) */ | |
64 | ||
65 | /* | |
66 | * Reset command buffer (to empty). | |
67 | */ | |
68 | cmd_reset() | |
69 | { | |
70 | cp = cmdbuf; | |
71 | } | |
72 | ||
73 | /* | |
74 | * Backspace in command buffer. | |
75 | */ | |
76 | static int | |
77 | cmd_erase() | |
78 | { | |
79 | if (cp == cmdbuf) | |
80 | /* | |
81 | * Backspace past beginning of the string: | |
82 | * this usually means abort the command. | |
83 | */ | |
84 | return (1); | |
85 | ||
86 | if (control_char(*--cp)) | |
87 | { | |
88 | /* | |
89 | * Erase an extra character, for the carat. | |
90 | */ | |
91 | backspace(); | |
92 | cmd_col--; | |
93 | } | |
94 | backspace(); | |
95 | cmd_col--; | |
96 | return (0); | |
97 | } | |
98 | ||
99 | /* | |
100 | * Set up the display to start a new multi-character command. | |
101 | */ | |
102 | start_mca(action, prompt) | |
103 | int action; | |
104 | char *prompt; | |
105 | { | |
106 | lower_left(); | |
107 | clear_eol(); | |
108 | putstr(prompt); | |
109 | cmd_col = strlen(prompt); | |
110 | mca = action; | |
111 | } | |
112 | ||
113 | /* | |
114 | * Process a single character of a multi-character command, such as | |
115 | * a number, or the pattern of a search command. | |
116 | */ | |
117 | static int | |
118 | cmd_char(c) | |
119 | int c; | |
120 | { | |
121 | if (c == erase_char) | |
122 | { | |
123 | if (cmd_erase()) | |
124 | return (1); | |
125 | } else if (c == kill_char) | |
126 | { | |
127 | /* {{ Could do this faster, but who cares? }} */ | |
128 | while (cmd_erase() == 0) | |
129 | ; | |
130 | } else if (cp >= &cmdbuf[sizeof(cmdbuf)-1]) | |
131 | { | |
132 | /* | |
133 | * No room in the command buffer. | |
134 | */ | |
135 | bell(); | |
136 | } else if (cmd_col >= sc_width-3) | |
137 | { | |
138 | /* | |
139 | * No room on the screen. | |
140 | * {{ Could get fancy here; maybe shift the displayed | |
141 | * line and make room for more chars, like ksh. }} | |
142 | */ | |
143 | bell(); | |
144 | } else | |
145 | { | |
146 | /* | |
147 | * Append the character to the string. | |
148 | */ | |
149 | *cp++ = c; | |
150 | if (control_char(c)) | |
151 | { | |
152 | putchr('^'); | |
153 | cmd_col++; | |
154 | c = carat_char(c); | |
155 | } | |
156 | putchr(c); | |
157 | cmd_col++; | |
158 | } | |
159 | return (0); | |
160 | } | |
161 | ||
162 | /* | |
163 | * Return the number currently in the command buffer. | |
164 | */ | |
165 | static int | |
166 | cmd_int() | |
167 | { | |
168 | *cp = '\0'; | |
169 | cp = cmdbuf; | |
170 | return (atoi(cmdbuf)); | |
171 | } | |
172 | ||
173 | /* | |
174 | * Move the cursor to lower left before executing a command. | |
175 | * This looks nicer if the command takes a long time before | |
176 | * updating the screen. | |
177 | */ | |
178 | static void | |
179 | cmd_exec() | |
180 | { | |
181 | lower_left(); | |
182 | flush(); | |
183 | } | |
184 | ||
185 | /* | |
186 | * Display the appropriate prompt. | |
187 | */ | |
188 | static void | |
189 | prompt() | |
190 | { | |
191 | register char *p; | |
192 | ||
193 | if (first_cmd != NULL && *first_cmd != '\0') | |
194 | { | |
195 | /* | |
196 | * No prompt necessary if commands are from first_cmd | |
197 | * rather than from the user. | |
198 | */ | |
199 | return; | |
200 | } | |
201 | ||
202 | /* | |
203 | * If nothing is displayed yet, display starting from line 1. | |
204 | */ | |
205 | if (position(TOP) == NULL_POSITION) | |
206 | jump_back(1); | |
207 | else if (screen_trashed) | |
208 | repaint(); | |
209 | ||
210 | /* | |
211 | * If the -E flag is set and we've hit EOF on the last file, quit. | |
212 | */ | |
213 | if (quit_at_eof == 2 && hit_eof && curr_ac + 1 >= ac) | |
214 | quit(); | |
215 | ||
216 | /* | |
217 | * Select the proper prompt and display it. | |
218 | */ | |
219 | lower_left(); | |
220 | clear_eol(); | |
221 | p = pr_string(); | |
222 | if (p == NULL) | |
223 | putchr(':'); | |
224 | else | |
225 | { | |
226 | so_enter(); | |
227 | putstr(p); | |
228 | so_exit(); | |
229 | } | |
230 | } | |
231 | ||
232 | /* | |
233 | * Get command character. | |
234 | * The character normally comes from the keyboard, | |
235 | * but may come from the "first_cmd" string. | |
236 | */ | |
237 | static int | |
238 | getcc() | |
239 | { | |
240 | if (first_cmd == NULL) | |
241 | return (getchr()); | |
242 | ||
243 | if (*first_cmd == '\0') | |
244 | { | |
245 | /* | |
246 | * Reached end of first_cmd input. | |
247 | */ | |
248 | first_cmd = NULL; | |
249 | if (cp > cmdbuf && position(TOP) == NULL_POSITION) | |
250 | { | |
251 | /* | |
252 | * Command is incomplete, so try to complete it. | |
253 | * There are only two cases: | |
254 | * 1. We have "/string" but no newline. Add the \n. | |
255 | * 2. We have a number but no command. Treat as #g. | |
256 | * (This is all pretty hokey.) | |
257 | */ | |
258 | if (mca != A_DIGIT) | |
259 | /* Not a number; must be search string */ | |
260 | return ('\n'); | |
261 | else | |
262 | /* A number; append a 'g' */ | |
263 | return ('g'); | |
264 | } | |
265 | return (getchr()); | |
266 | } | |
267 | return (*first_cmd++); | |
268 | } | |
269 | ||
270 | /* | |
271 | * Execute a multicharacter command. | |
272 | */ | |
273 | static void | |
274 | exec_mca() | |
275 | { | |
276 | register char *p; | |
277 | register int n; | |
278 | ||
279 | *cp = '\0'; | |
280 | cmd_exec(); | |
281 | switch (mca) | |
282 | { | |
283 | case A_F_SEARCH: | |
284 | search(1, cmdbuf, number, wsearch); | |
285 | break; | |
286 | case A_B_SEARCH: | |
287 | search(0, cmdbuf, number, wsearch); | |
288 | break; | |
289 | case A_FIRSTCMD: | |
290 | /* | |
291 | * Skip leading spaces or + signs in the string. | |
292 | */ | |
293 | for (p = cmdbuf; *p == '+' || *p == ' '; p++) | |
294 | ; | |
295 | if (every_first_cmd != NULL) | |
296 | free(every_first_cmd); | |
297 | if (*p == '\0') | |
298 | every_first_cmd = NULL; | |
299 | else | |
300 | every_first_cmd = save(p); | |
301 | break; | |
302 | case A_TOGGLE_OPTION: | |
303 | toggle_option(cmdbuf, 1); | |
304 | break; | |
305 | case A_EXAMINE: | |
306 | /* | |
307 | * Ignore leading spaces in the filename. | |
308 | */ | |
309 | for (p = cmdbuf; *p == ' '; p++) | |
310 | ; | |
311 | edit(glob(p)); | |
312 | break; | |
bfe13c81 KB |
313 | } |
314 | } | |
315 | ||
316 | /* | |
317 | * Add a character to a multi-character command. | |
318 | */ | |
319 | static int | |
320 | mca_char(c) | |
321 | int c; | |
322 | { | |
323 | switch (mca) | |
324 | { | |
325 | case 0: | |
326 | /* | |
327 | * Not in a multicharacter command. | |
328 | */ | |
329 | return (NO_MCA); | |
330 | ||
331 | case A_PREFIX: | |
332 | /* | |
333 | * In the prefix of a command. | |
334 | */ | |
335 | return (NO_MCA); | |
336 | ||
337 | case A_DIGIT: | |
338 | /* | |
339 | * Entering digits of a number. | |
340 | * Terminated by a non-digit. | |
341 | */ | |
342 | if ((c < '0' || c > '9') && | |
343 | c != erase_char && c != kill_char) | |
344 | { | |
345 | /* | |
346 | * Not part of the number. | |
347 | * Treat as a normal command character. | |
348 | */ | |
349 | number = cmd_int(); | |
350 | mca = 0; | |
351 | return (NO_MCA); | |
352 | } | |
353 | break; | |
354 | ||
355 | case A_TOGGLE_OPTION: | |
356 | /* | |
357 | * Special case for the TOGGLE_OPTION command. | |
358 | * if the option letter which was entered is a | |
359 | * single-char option, execute the command immediately, | |
360 | * so he doesn't have to hit RETURN. | |
361 | */ | |
362 | if (cp == cmdbuf && c != erase_char && c != kill_char && | |
363 | single_char_option(c)) | |
364 | { | |
365 | cmdbuf[0] = c; | |
366 | cmdbuf[1] = '\0'; | |
367 | toggle_option(cmdbuf, 1); | |
368 | return (MCA_DONE); | |
369 | } | |
370 | break; | |
371 | } | |
372 | ||
373 | /* | |
374 | * Any other multicharacter command | |
375 | * is terminated by a newline. | |
376 | */ | |
377 | if (c == '\n' || c == '\r') | |
378 | { | |
379 | /* | |
380 | * Execute the command. | |
381 | */ | |
382 | exec_mca(); | |
383 | return (MCA_DONE); | |
384 | } | |
385 | /* | |
386 | * Append the char to the command buffer. | |
387 | */ | |
388 | if (cmd_char(c)) | |
389 | /* | |
390 | * Abort the multi-char command. | |
391 | */ | |
392 | return (MCA_DONE); | |
393 | /* | |
394 | * Need another character. | |
395 | */ | |
396 | return (MCA_MORE); | |
397 | } | |
398 | ||
399 | /* | |
400 | * Main command processor. | |
401 | * Accept and execute commands until a quit command, then return. | |
402 | */ | |
403 | public void | |
404 | commands() | |
405 | { | |
406 | register int c; | |
407 | register int action; | |
408 | ||
409 | last_mca = 0; | |
410 | scroll = (sc_height + 1) / 2; | |
411 | ||
412 | for (;;) | |
413 | { | |
414 | mca = 0; | |
415 | number = 0; | |
416 | ||
417 | /* | |
418 | * See if any signals need processing. | |
419 | */ | |
420 | if (sigs) | |
421 | { | |
422 | psignals(); | |
423 | if (quitting) | |
424 | quit(); | |
425 | } | |
426 | ||
427 | /* | |
428 | * Display prompt and accept a character. | |
429 | */ | |
430 | cmd_reset(); | |
431 | prompt(); | |
432 | noprefix(); | |
433 | c = getcc(); | |
434 | ||
435 | again: | |
436 | if (sigs) | |
437 | continue; | |
438 | ||
439 | /* | |
440 | * If we are in a multicharacter command, call mca_char. | |
441 | * Otherwise we call cmd_decode to determine the | |
442 | * action to be performed. | |
443 | */ | |
444 | if (mca) | |
445 | switch (mca_char(c)) | |
446 | { | |
447 | case MCA_MORE: | |
448 | /* | |
449 | * Need another character. | |
450 | */ | |
451 | c = getcc(); | |
452 | goto again; | |
453 | case MCA_DONE: | |
454 | /* | |
455 | * Command has been handled by mca_char. | |
456 | * Start clean with a prompt. | |
457 | */ | |
458 | continue; | |
459 | case NO_MCA: | |
460 | /* | |
461 | * Not a multi-char command | |
462 | * (at least, not anymore). | |
463 | */ | |
464 | break; | |
465 | } | |
466 | ||
467 | /* | |
468 | * Decode the command character and decide what to do. | |
469 | */ | |
470 | switch (action = cmd_decode(c)) | |
471 | { | |
472 | case A_DIGIT: | |
473 | /* | |
474 | * First digit of a number. | |
475 | */ | |
476 | start_mca(A_DIGIT, ":"); | |
477 | goto again; | |
478 | ||
479 | case A_F_SCREEN: | |
480 | /* | |
481 | * Forward one screen. | |
482 | */ | |
483 | if (number <= 0) | |
484 | number = sc_window; | |
485 | if (number <= 0) | |
486 | number = sc_height - 1; | |
487 | cmd_exec(); | |
488 | forward(number, 1); | |
489 | break; | |
490 | ||
491 | case A_B_SCREEN: | |
492 | /* | |
493 | * Backward one screen. | |
494 | */ | |
495 | if (number <= 0) | |
496 | number = sc_window; | |
497 | if (number <= 0) | |
498 | number = sc_height - 1; | |
499 | cmd_exec(); | |
500 | backward(number, 1); | |
501 | break; | |
502 | ||
503 | case A_F_LINE: | |
504 | /* | |
505 | * Forward N (default 1) line. | |
506 | */ | |
507 | if (number <= 0) | |
508 | number = 1; | |
509 | cmd_exec(); | |
510 | forward(number, 0); | |
511 | break; | |
512 | ||
513 | case A_B_LINE: | |
514 | /* | |
515 | * Backward N (default 1) line. | |
516 | */ | |
517 | if (number <= 0) | |
518 | number = 1; | |
519 | cmd_exec(); | |
520 | backward(number, 0); | |
521 | break; | |
522 | ||
523 | case A_F_SCROLL: | |
524 | /* | |
525 | * Forward N lines | |
526 | * (default same as last 'd' or 'u' command). | |
527 | */ | |
528 | if (number > 0) | |
529 | scroll = number; | |
530 | cmd_exec(); | |
531 | forward(scroll, 0); | |
532 | break; | |
533 | ||
534 | case A_B_SCROLL: | |
535 | /* | |
536 | * Forward N lines | |
537 | * (default same as last 'd' or 'u' command). | |
538 | */ | |
539 | if (number > 0) | |
540 | scroll = number; | |
541 | cmd_exec(); | |
542 | backward(scroll, 0); | |
543 | break; | |
544 | ||
545 | case A_FREPAINT: | |
546 | /* | |
547 | * Flush buffers, then repaint screen. | |
548 | * Don't flush the buffers on a pipe! | |
549 | */ | |
550 | if (!ispipe) | |
551 | { | |
552 | ch_init(0, 0); | |
553 | clr_linenum(); | |
554 | } | |
555 | /* FALLTHRU */ | |
556 | case A_REPAINT: | |
557 | /* | |
558 | * Repaint screen. | |
559 | */ | |
560 | cmd_exec(); | |
561 | repaint(); | |
562 | break; | |
563 | ||
564 | case A_GOLINE: | |
565 | /* | |
566 | * Go to line N, default beginning of file. | |
567 | */ | |
568 | if (number <= 0) | |
569 | number = 1; | |
570 | cmd_exec(); | |
571 | jump_back(number); | |
572 | break; | |
573 | ||
574 | case A_PERCENT: | |
575 | /* | |
576 | * Go to a specified percentage into the file. | |
577 | */ | |
578 | if (number < 0) | |
579 | number = 0; | |
580 | if (number > 100) | |
581 | number = 100; | |
582 | cmd_exec(); | |
583 | jump_percent(number); | |
584 | break; | |
585 | ||
586 | case A_GOEND: | |
587 | /* | |
588 | * Go to line N, default end of file. | |
589 | */ | |
590 | cmd_exec(); | |
591 | if (number <= 0) | |
592 | jump_forw(); | |
593 | else | |
594 | jump_back(number); | |
595 | break; | |
596 | ||
597 | case A_STAT: | |
598 | /* | |
599 | * Print file name, etc. | |
600 | */ | |
601 | cmd_exec(); | |
602 | error(eq_message()); | |
603 | break; | |
604 | ||
605 | case A_VERSION: | |
606 | /* | |
607 | * Print version number, without the "@(#)". | |
608 | */ | |
609 | cmd_exec(); | |
610 | error(version+4); | |
611 | break; | |
612 | ||
613 | case A_QUIT: | |
614 | /* | |
615 | * Exit. | |
616 | */ | |
617 | quit(); | |
618 | ||
619 | case A_F_SEARCH: | |
620 | case A_B_SEARCH: | |
621 | /* | |
622 | * Search for a pattern. | |
623 | * Accept chars of the pattern until \n. | |
624 | */ | |
625 | if (number <= 0) | |
626 | number = 1; | |
627 | start_mca(action, (action==A_F_SEARCH) ? "/" : "?"); | |
628 | last_mca = mca; | |
629 | wsearch = 1; | |
630 | c = getcc(); | |
631 | if (c == '!') | |
632 | { | |
633 | /* | |
634 | * Invert the sense of the search. | |
635 | * Set wsearch to 0 and get a new | |
636 | * character for the start of the pattern. | |
637 | */ | |
638 | start_mca(action, | |
639 | (action==A_F_SEARCH) ? "!/" : "!?"); | |
640 | wsearch = 0; | |
641 | c = getcc(); | |
642 | } | |
643 | goto again; | |
644 | ||
645 | case A_AGAIN_SEARCH: | |
646 | /* | |
647 | * Repeat previous search. | |
648 | */ | |
649 | if (number <= 0) | |
650 | number = 1; | |
651 | if (wsearch) | |
652 | start_mca(last_mca, | |
653 | (last_mca==A_F_SEARCH) ? "/" : "?"); | |
654 | else | |
655 | start_mca(last_mca, | |
656 | (last_mca==A_F_SEARCH) ? "!/" : "!?"); | |
657 | cmd_exec(); | |
658 | search(mca==A_F_SEARCH, (char *)NULL, number, wsearch); | |
659 | break; | |
660 | ||
661 | case A_HELP: | |
662 | /* | |
663 | * Help. | |
664 | */ | |
665 | lower_left(); | |
666 | clear_eol(); | |
667 | putstr("help"); | |
668 | cmd_exec(); | |
669 | help(); | |
670 | break; | |
671 | ||
672 | case A_EXAMINE: | |
673 | /* | |
674 | * Edit a new file. Get the filename. | |
675 | */ | |
676 | cmd_reset(); | |
677 | start_mca(A_EXAMINE, "Examine: "); | |
678 | c = getcc(); | |
679 | goto again; | |
680 | ||
681 | case A_VISUAL: | |
682 | /* | |
683 | * Invoke an editor on the input file. | |
684 | */ | |
bfe13c81 KB |
685 | if (ispipe) |
686 | { | |
687 | error("Cannot edit standard input"); | |
688 | break; | |
689 | } | |
690 | /* | |
691 | * Try to pass the line number to the editor. | |
692 | */ | |
693 | cmd_exec(); | |
694 | c = currline(MIDDLE); | |
695 | if (c == 0) | |
696 | sprintf(cmdbuf, "%s %s", | |
697 | editor, current_file); | |
698 | else | |
699 | sprintf(cmdbuf, "%s +%d %s", | |
700 | editor, c, current_file); | |
701 | lsystem(cmdbuf); | |
702 | ch_init(0, 0); | |
703 | clr_linenum(); | |
704 | break; | |
bfe13c81 KB |
705 | |
706 | case A_NEXT_FILE: | |
707 | /* | |
708 | * Examine next file. | |
709 | */ | |
710 | if (number <= 0) | |
711 | number = 1; | |
712 | next_file(number); | |
713 | break; | |
714 | ||
715 | case A_PREV_FILE: | |
716 | /* | |
717 | * Examine previous file. | |
718 | */ | |
719 | if (number <= 0) | |
720 | number = 1; | |
721 | prev_file(number); | |
722 | break; | |
723 | ||
724 | case A_TOGGLE_OPTION: | |
725 | /* | |
726 | * Toggle a flag setting. | |
727 | */ | |
728 | cmd_reset(); | |
729 | start_mca(A_TOGGLE_OPTION, "-"); | |
730 | c = getcc(); | |
731 | goto again; | |
732 | ||
733 | case A_DISP_OPTION: | |
734 | /* | |
735 | * Report a flag setting. | |
736 | */ | |
737 | cmd_reset(); | |
738 | start_mca(A_DISP_OPTION, "_"); | |
739 | c = getcc(); | |
740 | if (c == erase_char || c == kill_char) | |
741 | break; | |
742 | cmdbuf[0] = c; | |
743 | cmdbuf[1] = '\0'; | |
744 | toggle_option(cmdbuf, 0); | |
745 | break; | |
746 | ||
747 | case A_FIRSTCMD: | |
748 | /* | |
749 | * Set an initial command for new files. | |
750 | */ | |
751 | cmd_reset(); | |
752 | start_mca(A_FIRSTCMD, "+"); | |
753 | c = getcc(); | |
754 | goto again; | |
755 | ||
bfe13c81 KB |
756 | case A_SETMARK: |
757 | /* | |
758 | * Set a mark. | |
759 | */ | |
760 | lower_left(); | |
761 | clear_eol(); | |
762 | start_mca(A_SETMARK, "mark: "); | |
763 | c = getcc(); | |
764 | if (c == erase_char || c == kill_char) | |
765 | break; | |
766 | setmark(c); | |
767 | break; | |
768 | ||
769 | case A_GOMARK: | |
770 | /* | |
771 | * Go to a mark. | |
772 | */ | |
773 | lower_left(); | |
774 | clear_eol(); | |
775 | start_mca(A_GOMARK, "goto mark: "); | |
776 | c = getcc(); | |
777 | if (c == erase_char || c == kill_char) | |
778 | break; | |
779 | gomark(c); | |
780 | break; | |
781 | ||
782 | case A_PREFIX: | |
783 | /* | |
784 | * The command is incomplete (more chars are needed). | |
785 | * Display the current char so the user knows | |
786 | * what's going on and get another character. | |
787 | */ | |
788 | if (mca != A_PREFIX) | |
789 | start_mca(A_PREFIX, "& "); | |
790 | if (control_char(c)) | |
791 | { | |
792 | putchr('^'); | |
793 | c = carat_char(c); | |
794 | } | |
795 | putchr(c); | |
796 | c = getcc(); | |
797 | goto again; | |
798 | ||
799 | default: | |
800 | bell(); | |
801 | break; | |
802 | } | |
803 | } | |
804 | } |