Commit | Line | Data |
---|---|---|
d9fbdd64 MH |
1 | /* Copyright (c) 1979 Regents of the University of California */ |
2 | #include "ex.h" | |
3 | #include "ex_argv.h" | |
4 | #include "ex_temp.h" | |
5 | #include "ex_tty.h" | |
6 | ||
7 | bool pflag, nflag; | |
8 | int poffset; | |
9 | ||
10 | #define nochng() lchng = chng | |
11 | ||
12 | /* | |
13 | * Main loop for command mode command decoding. | |
14 | * A few commands are executed here, but main function | |
15 | * is to strip command addresses, do a little address oriented | |
16 | * processing and call command routines to do the real work. | |
17 | */ | |
18 | commands(noprompt, exitoneof) | |
19 | bool noprompt, exitoneof; | |
20 | { | |
21 | register line *addr; | |
22 | register int c; | |
23 | register int lchng; | |
24 | int given; | |
25 | int seensemi; | |
26 | int cnt; | |
27 | bool hadpr; | |
28 | ||
29 | resetflav(); | |
30 | nochng(); | |
31 | for (;;) { | |
32 | /* | |
33 | * If dot at last command | |
34 | * ended up at zero, advance to one if there is a such. | |
35 | */ | |
36 | if (dot <= zero) { | |
37 | dot = zero; | |
38 | if (dol > zero) | |
39 | dot = one; | |
40 | } | |
41 | shudclob = 0; | |
42 | ||
43 | /* | |
44 | * If autoprint or trailing print flags, | |
45 | * print the line at the specified offset | |
46 | * before the next command. | |
47 | */ | |
48 | if (pflag || | |
49 | lchng != chng && value(AUTOPRINT) && !inglobal && !inopen && endline) { | |
50 | pflag = 0; | |
51 | nochng(); | |
52 | if (dol != zero) { | |
53 | addr1 = addr2 = dot + poffset; | |
54 | if (addr1 < one || addr1 > dol) | |
55 | error("Offset out-of-bounds|Offset after command too large"); | |
56 | setdot1(); | |
57 | goto print; | |
58 | } | |
59 | } | |
60 | nochng(); | |
61 | ||
62 | /* | |
63 | * Print prompt if appropriate. | |
64 | * If not in global flush output first to prevent | |
65 | * going into pfast mode unreasonably. | |
66 | */ | |
67 | if (inglobal == 0) { | |
68 | flush(); | |
69 | if (!hush && value(PROMPT) && !globp && !noprompt && endline) { | |
70 | putchar(':'); | |
71 | hadpr = 1; | |
72 | } | |
73 | TSYNC(); | |
74 | } | |
75 | ||
76 | /* | |
77 | * Gobble up the address. | |
78 | * Degenerate addresses yield ".". | |
79 | */ | |
80 | addr2 = 0; | |
81 | given = seensemi = 0; | |
82 | do { | |
83 | addr1 = addr2; | |
84 | addr = address(0); | |
85 | c = getcd(); | |
86 | if (addr == 0) | |
87 | if (c == ',') | |
88 | addr = dot; | |
89 | else if (addr1 != 0) { | |
90 | addr2 = dot; | |
91 | break; | |
92 | } else | |
93 | break; | |
94 | addr2 = addr; | |
95 | given++; | |
96 | if (c == ';') { | |
97 | c = ','; | |
98 | dot = addr; | |
99 | seensemi = 1; | |
100 | } | |
101 | } while (c == ','); | |
102 | if (c == '%') { | |
103 | /* %: same as 1,$ */ | |
104 | addr1 = one; | |
105 | addr2 = dol; | |
106 | given = 2; | |
107 | c = getchar(); | |
108 | } | |
109 | if (addr1 == 0) | |
110 | addr1 = addr2; | |
111 | if (c == ':') | |
112 | c = getchar(); | |
113 | ||
114 | /* | |
115 | * Set command name for special character commands. | |
116 | */ | |
117 | tailspec(c); | |
118 | ||
119 | /* | |
120 | * If called via : escape from open or visual, limit | |
121 | * the set of available commands here to save work below. | |
122 | */ | |
123 | if (inopen) { | |
124 | if (c=='\n' || c=='\r' || c==CTRL(d) || c==EOF) { | |
125 | if (addr2) | |
126 | dot = addr2; | |
127 | if (c == EOF) | |
128 | return; | |
129 | continue; | |
130 | } | |
131 | if (any(c, "o")) | |
132 | notinvis: | |
133 | tailprim(Command, 1, 1); | |
134 | } | |
135 | choice: | |
136 | switch (c) { | |
137 | ||
138 | case 'a': | |
139 | ||
d266c416 MH |
140 | switch(peekchar()) { |
141 | case 'b': | |
142 | /* abbreviate */ | |
143 | tail("abbreviate"); | |
144 | setnoaddr(); | |
145 | mapcmd(0, 1); | |
146 | anyabbrs = 1; | |
147 | continue; | |
148 | case 'r': | |
d9fbdd64 MH |
149 | /* args */ |
150 | tail("args"); | |
151 | setnoaddr(); | |
152 | eol(); | |
153 | pargs(); | |
154 | continue; | |
155 | } | |
156 | ||
157 | /* append */ | |
158 | if (inopen) | |
159 | goto notinvis; | |
160 | tail("append"); | |
161 | setdot(); | |
162 | aiflag = exclam(); | |
163 | newline(); | |
d266c416 | 164 | vmacchng(0); |
d9fbdd64 MH |
165 | deletenone(); |
166 | setin(addr2); | |
d266c416 | 167 | inappend = 1; |
d9fbdd64 | 168 | ignore(append(gettty, addr2)); |
d266c416 | 169 | inappend = 0; |
d9fbdd64 MH |
170 | nochng(); |
171 | continue; | |
172 | ||
173 | case 'c': | |
174 | switch (peekchar()) { | |
175 | ||
176 | /* copy */ | |
177 | case 'o': | |
178 | tail("copy"); | |
d266c416 | 179 | vmacchng(0); |
d9fbdd64 MH |
180 | move(); |
181 | continue; | |
182 | ||
183 | #ifdef CHDIR | |
184 | /* cd */ | |
185 | case 'd': | |
186 | tail("cd"); | |
187 | goto changdir; | |
188 | ||
189 | /* chdir */ | |
190 | case 'h': | |
191 | ignchar(); | |
192 | if (peekchar() == 'd') { | |
193 | register char *p; | |
194 | tail2of("chdir"); | |
195 | changdir: | |
196 | if (savedfile[0] == '/' || !value(WARN)) | |
197 | ignore(exclam()); | |
198 | else | |
199 | ignore(quickly()); | |
200 | if (skipend()) { | |
201 | p = getenv("HOME"); | |
202 | if (p == NULL) | |
203 | error("Home directory unknown"); | |
204 | } else | |
205 | getone(), p = file; | |
206 | eol(); | |
207 | if (chdir(p) < 0) | |
208 | filioerr(p); | |
209 | if (savedfile[0] != '/') | |
210 | edited = 0; | |
211 | continue; | |
212 | } | |
213 | if (inopen) | |
214 | tailprim("change", 2, 1); | |
215 | tail2of("change"); | |
216 | break; | |
217 | ||
218 | #endif | |
219 | default: | |
220 | if (inopen) | |
221 | goto notinvis; | |
222 | tail("change"); | |
223 | break; | |
224 | } | |
225 | /* change */ | |
226 | aiflag = exclam(); | |
227 | setCNL(); | |
d266c416 | 228 | vmacchng(0); |
d9fbdd64 MH |
229 | setin(addr1); |
230 | delete(0); | |
d266c416 | 231 | inappend = 1; |
d9fbdd64 | 232 | ignore(append(gettty, addr1 - 1)); |
d266c416 | 233 | inappend = 0; |
d9fbdd64 MH |
234 | nochng(); |
235 | continue; | |
236 | ||
237 | /* delete */ | |
238 | case 'd': | |
239 | /* | |
240 | * Caution: dp and dl have special meaning already. | |
241 | */ | |
242 | tail("delete"); | |
243 | c = cmdreg(); | |
244 | setCNL(); | |
d266c416 | 245 | vmacchng(0); |
d9fbdd64 MH |
246 | if (c) |
247 | YANKreg(c); | |
248 | delete(0); | |
249 | appendnone(); | |
250 | continue; | |
251 | ||
252 | /* edit */ | |
253 | /* ex */ | |
254 | case 'e': | |
255 | tail(peekchar() == 'x' ? "ex" : "edit"); | |
d266c416 | 256 | editcmd: |
d9fbdd64 MH |
257 | if (!exclam() && chng) |
258 | c = 'E'; | |
259 | filename(c); | |
260 | if (c == 'E') { | |
261 | ungetchar(lastchar()); | |
262 | ignore(quickly()); | |
263 | } | |
264 | setnoaddr(); | |
265 | doecmd: | |
266 | init(); | |
267 | addr2 = zero; | |
268 | laste++; | |
269 | sync(); | |
270 | rop(c); | |
271 | nochng(); | |
272 | continue; | |
273 | ||
274 | /* file */ | |
275 | case 'f': | |
276 | tail("file"); | |
277 | setnoaddr(); | |
278 | filename(c); | |
279 | noonl(); | |
44232d5b | 280 | /* |
d9fbdd64 | 281 | synctmp(); |
44232d5b | 282 | */ |
d9fbdd64 MH |
283 | continue; |
284 | ||
285 | /* global */ | |
286 | case 'g': | |
287 | tail("global"); | |
288 | global(!exclam()); | |
289 | nochng(); | |
290 | continue; | |
291 | ||
292 | /* insert */ | |
293 | case 'i': | |
294 | if (inopen) | |
295 | goto notinvis; | |
296 | tail("insert"); | |
297 | setdot(); | |
298 | nonzero(); | |
299 | aiflag = exclam(); | |
300 | newline(); | |
d266c416 | 301 | vmacchng(0); |
d9fbdd64 MH |
302 | deletenone(); |
303 | setin(addr2); | |
d266c416 | 304 | inappend = 1; |
d9fbdd64 | 305 | ignore(append(gettty, addr2 - 1)); |
d266c416 | 306 | inappend = 0; |
d9fbdd64 MH |
307 | if (dot == zero && dol > zero) |
308 | dot = one; | |
309 | nochng(); | |
310 | continue; | |
311 | ||
312 | /* join */ | |
313 | case 'j': | |
314 | tail("join"); | |
315 | c = exclam(); | |
316 | setcount(); | |
317 | nonzero(); | |
318 | newline(); | |
d266c416 | 319 | vmacchng(0); |
d9fbdd64 MH |
320 | if (given < 2 && addr2 != dol) |
321 | addr2++; | |
322 | join(c); | |
323 | continue; | |
324 | ||
325 | /* k */ | |
326 | case 'k': | |
327 | casek: | |
328 | pastwh(); | |
329 | c = getchar(); | |
330 | if (endcmd(c)) | |
331 | serror("Mark what?|%s requires following letter", Command); | |
332 | newline(); | |
333 | if (!islower(c)) | |
334 | error("Bad mark|Mark must specify a letter"); | |
335 | setdot(); | |
336 | nonzero(); | |
337 | names[c - 'a'] = *addr2 &~ 01; | |
338 | anymarks = 1; | |
339 | continue; | |
340 | ||
341 | /* list */ | |
342 | case 'l': | |
343 | tail("list"); | |
344 | setCNL(); | |
345 | ignorf(setlist(1)); | |
346 | pflag = 0; | |
347 | goto print; | |
348 | ||
349 | case 'm': | |
350 | if (peekchar() == 'a') { | |
351 | ignchar(); | |
352 | if (peekchar() == 'p') { | |
353 | /* map */ | |
354 | tail2of("map"); | |
355 | setnoaddr(); | |
d266c416 | 356 | mapcmd(0, 0); |
d9fbdd64 MH |
357 | continue; |
358 | } | |
359 | /* mark */ | |
360 | tail2of("mark"); | |
361 | goto casek; | |
362 | } | |
363 | /* move */ | |
364 | tail("move"); | |
d266c416 | 365 | vmacchng(0); |
d9fbdd64 MH |
366 | move(); |
367 | continue; | |
368 | ||
369 | case 'n': | |
370 | if (peekchar() == 'u') { | |
371 | tail("number"); | |
372 | goto numberit; | |
373 | } | |
374 | /* next */ | |
375 | tail("next"); | |
376 | setnoaddr(); | |
377 | ckaw(); | |
378 | ignore(quickly()); | |
379 | if (getargs()) | |
380 | makargs(); | |
381 | next(); | |
382 | c = 'e'; | |
383 | filename(c); | |
384 | goto doecmd; | |
385 | ||
386 | /* open */ | |
387 | case 'o': | |
388 | tail("open"); | |
389 | oop(); | |
390 | pflag = 0; | |
391 | nochng(); | |
392 | continue; | |
393 | ||
394 | case 'p': | |
395 | case 'P': | |
396 | switch (peekchar()) { | |
397 | ||
398 | /* put */ | |
399 | case 'u': | |
400 | tail("put"); | |
401 | setdot(); | |
402 | c = cmdreg(); | |
403 | eol(); | |
d266c416 | 404 | vmacchng(0); |
d9fbdd64 MH |
405 | if (c) |
406 | putreg(c); | |
407 | else | |
408 | put(); | |
409 | continue; | |
410 | ||
411 | case 'r': | |
412 | ignchar(); | |
413 | if (peekchar() == 'e') { | |
414 | /* preserve */ | |
415 | tail2of("preserve"); | |
416 | eol(); | |
417 | if (preserve() == 0) | |
418 | error("Preserve failed!"); | |
419 | else | |
420 | error("File preserved."); | |
421 | } | |
422 | tail2of("print"); | |
423 | break; | |
424 | ||
425 | default: | |
426 | tail("print"); | |
427 | break; | |
428 | } | |
429 | /* print */ | |
430 | setCNL(); | |
431 | pflag = 0; | |
432 | print: | |
433 | nonzero(); | |
434 | if (CL && span() > LINES) { | |
435 | flush1(); | |
436 | vclear(); | |
437 | } | |
438 | plines(addr1, addr2, 1); | |
439 | continue; | |
440 | ||
441 | /* quit */ | |
442 | case 'q': | |
443 | tail("quit"); | |
444 | setnoaddr(); | |
445 | c = quickly(); | |
446 | eol(); | |
447 | if (!c) | |
448 | quit: | |
449 | nomore(); | |
450 | if (inopen) { | |
451 | vgoto(WECHO, 0); | |
452 | if (!ateopr()) | |
453 | vnfl(); | |
454 | else { | |
d266c416 MH |
455 | tostop(); |
456 | /* replaced by tostop | |
d9fbdd64 MH |
457 | putpad(VE); |
458 | putpad(KE); | |
d266c416 | 459 | */ |
d9fbdd64 MH |
460 | } |
461 | flush(); | |
462 | setty(normf); | |
463 | } | |
464 | cleanup(1); | |
465 | exit(0); | |
466 | ||
467 | case 'r': | |
468 | if (peekchar() == 'e') { | |
469 | ignchar(); | |
470 | switch (peekchar()) { | |
471 | ||
472 | /* rewind */ | |
473 | case 'w': | |
474 | tail2of("rewind"); | |
475 | setnoaddr(); | |
d9fbdd64 | 476 | eol(); |
d266c416 MH |
477 | ckaw(); |
478 | ignore(quickly()); | |
d9fbdd64 MH |
479 | erewind(); |
480 | next(); | |
481 | c = 'e'; | |
482 | ungetchar(lastchar()); | |
483 | filename(c); | |
484 | goto doecmd; | |
485 | ||
486 | /* recover */ | |
487 | case 'c': | |
488 | tail2of("recover"); | |
489 | setnoaddr(); | |
490 | c = 'e'; | |
491 | if (!exclam() && chng) | |
492 | c = 'E'; | |
493 | filename(c); | |
494 | if (c == 'E') { | |
495 | ungetchar(lastchar()); | |
496 | ignore(quickly()); | |
497 | } | |
498 | init(); | |
499 | addr2 = zero; | |
500 | laste++; | |
501 | sync(); | |
502 | recover(); | |
503 | rop2(); | |
504 | revocer(); | |
505 | if (status == 0) | |
506 | rop3(c); | |
507 | if (dol != zero) | |
508 | change(); | |
509 | nochng(); | |
510 | continue; | |
511 | } | |
512 | tail2of("read"); | |
513 | } else | |
514 | tail("read"); | |
515 | /* read */ | |
516 | if (savedfile[0] == 0 && dol == zero) | |
517 | c = 'e'; | |
518 | pastwh(); | |
d266c416 | 519 | vmacchng(0); |
d9fbdd64 MH |
520 | if (peekchar() == '!') { |
521 | setdot(); | |
522 | ignchar(); | |
523 | unix0(0); | |
524 | filter(0); | |
525 | continue; | |
526 | } | |
527 | filename(c); | |
528 | rop(c); | |
529 | nochng(); | |
530 | if (inopen && endline && addr1 > zero && addr1 < dol) | |
531 | dot = addr1 + 1; | |
532 | continue; | |
533 | ||
534 | case 's': | |
535 | switch (peekchar()) { | |
536 | /* | |
537 | * Caution: 2nd char cannot be c, g, or r | |
538 | * because these have meaning to substitute. | |
539 | */ | |
540 | ||
541 | /* set */ | |
542 | case 'e': | |
543 | tail("set"); | |
544 | setnoaddr(); | |
545 | set(); | |
546 | continue; | |
547 | ||
548 | /* shell */ | |
549 | case 'h': | |
550 | tail("shell"); | |
551 | setNAEOL(); | |
552 | vnfl(); | |
553 | putpad(TE); | |
554 | flush(); | |
555 | unixwt(1, unixex("-i", (char *) 0, 0, 0)); | |
556 | vcontin(0); | |
d9fbdd64 MH |
557 | continue; |
558 | ||
559 | /* source */ | |
560 | case 'o': | |
561 | if (inopen) | |
562 | goto notinvis; | |
563 | tail("source"); | |
564 | setnoaddr(); | |
565 | getone(); | |
566 | eol(); | |
567 | source(file, 0); | |
568 | continue; | |
d266c416 MH |
569 | #ifdef TIOCLGET |
570 | /* stop */ | |
571 | case 't': | |
572 | tail("stop"); | |
573 | if (!ldisc) | |
574 | error("Old tty driver|Not using new tty driver/shell"); | |
575 | c = exclam(); | |
576 | eol(); | |
577 | if (!c) | |
578 | ckaw(); | |
579 | eol(); | |
580 | onsusp(); | |
581 | continue; | |
582 | #endif | |
583 | ||
d9fbdd64 MH |
584 | } |
585 | /* fall into ... */ | |
586 | ||
587 | /* & */ | |
588 | /* ~ */ | |
589 | /* substitute */ | |
590 | case '&': | |
591 | case '~': | |
592 | Command = "substitute"; | |
593 | if (c == 's') | |
594 | tail(Command); | |
d266c416 | 595 | vmacchng(0); |
d9fbdd64 MH |
596 | if (!substitute(c)) |
597 | pflag = 0; | |
598 | continue; | |
599 | ||
600 | /* t */ | |
601 | case 't': | |
602 | if (peekchar() == 'a') { | |
603 | tail("tag"); | |
604 | tagfind(exclam()); | |
605 | if (!inopen) | |
606 | lchng = chng - 1; | |
607 | else | |
608 | nochng(); | |
609 | continue; | |
610 | } | |
611 | tail("t"); | |
d266c416 | 612 | vmacchng(0); |
d9fbdd64 MH |
613 | move(); |
614 | continue; | |
615 | ||
616 | case 'u': | |
617 | if (peekchar() == 'n') { | |
d9fbdd64 | 618 | ignchar(); |
d266c416 MH |
619 | switch(peekchar()) { |
620 | /* unmap */ | |
621 | case 'm': | |
d9fbdd64 MH |
622 | tail2of("unmap"); |
623 | setnoaddr(); | |
d266c416 MH |
624 | mapcmd(1, 0); |
625 | continue; | |
626 | /* unabbreviate */ | |
627 | case 'a': | |
628 | tail2of("unabbreviate"); | |
629 | setnoaddr(); | |
630 | mapcmd(1, 1); | |
631 | anyabbrs = 1; | |
d9fbdd64 MH |
632 | continue; |
633 | } | |
634 | /* undo */ | |
635 | tail2of("undo"); | |
636 | } else | |
637 | tail("undo"); | |
638 | setnoaddr(); | |
639 | markDOT(); | |
640 | c = exclam(); | |
641 | newline(); | |
642 | undo(c); | |
643 | continue; | |
644 | ||
645 | case 'v': | |
646 | switch (peekchar()) { | |
647 | ||
648 | case 'e': | |
649 | /* version */ | |
650 | tail("version"); | |
651 | setNAEOL(); | |
652 | /* should use SCCS subst here */ | |
d266c416 | 653 | printf("Version 3.4, June 24, 1980"); |
d9fbdd64 MH |
654 | noonl(); |
655 | continue; | |
656 | ||
657 | /* visual */ | |
658 | case 'i': | |
659 | tail("visual"); | |
d266c416 MH |
660 | if (inopen) { |
661 | c = 'e'; | |
662 | goto editcmd; | |
663 | } | |
d9fbdd64 MH |
664 | vop(); |
665 | pflag = 0; | |
666 | nochng(); | |
667 | continue; | |
668 | } | |
669 | /* v */ | |
670 | tail("v"); | |
671 | global(0); | |
672 | nochng(); | |
673 | continue; | |
674 | ||
675 | /* write */ | |
676 | case 'w': | |
677 | c = peekchar(); | |
678 | tail(c == 'q' ? "wq" : "write"); | |
887e3e0d | 679 | wq: |
d9fbdd64 | 680 | if (skipwh() && peekchar() == '!') { |
887e3e0d | 681 | pofix(); |
d9fbdd64 MH |
682 | ignchar(); |
683 | setall(); | |
684 | unix0(0); | |
685 | filter(1); | |
686 | } else { | |
687 | setall(); | |
688 | wop(1); | |
689 | nochng(); | |
690 | } | |
691 | if (c == 'q') | |
692 | goto quit; | |
693 | continue; | |
694 | ||
887e3e0d MH |
695 | /* xit */ |
696 | case 'x': | |
697 | tail("xit"); | |
698 | if (!chng) | |
699 | goto quit; | |
700 | c = 'q'; | |
701 | goto wq; | |
702 | ||
d9fbdd64 MH |
703 | /* yank */ |
704 | case 'y': | |
705 | tail("yank"); | |
706 | c = cmdreg(); | |
707 | setcount(); | |
708 | eol(); | |
d266c416 | 709 | vmacchng(0); |
d9fbdd64 MH |
710 | if (c) |
711 | YANKreg(c); | |
712 | else | |
713 | yank(); | |
714 | continue; | |
715 | ||
716 | /* z */ | |
717 | case 'z': | |
718 | zop(0); | |
719 | pflag = 0; | |
720 | continue; | |
721 | ||
722 | /* * */ | |
723 | /* @ */ | |
724 | case '*': | |
725 | case '@': | |
726 | c = getchar(); | |
727 | if (c=='\n' || c=='\r') | |
728 | ungetchar(c); | |
729 | if (any(c, "@*\n\r")) | |
730 | c = lastmac; | |
731 | if (isupper(c)) | |
732 | c = tolower(c); | |
733 | if (!islower(c)) | |
734 | error("Bad register"); | |
735 | newline(); | |
736 | setdot(); | |
737 | cmdmac(c); | |
738 | continue; | |
739 | ||
740 | /* | */ | |
741 | case '|': | |
742 | endline = 0; | |
743 | goto caseline; | |
744 | ||
745 | /* \n */ | |
746 | case '\n': | |
747 | endline = 1; | |
748 | caseline: | |
749 | notempty(); | |
750 | if (addr2 == 0) { | |
d9fbdd64 MH |
751 | if (UP != NOSTR && c == '\n' && !inglobal) |
752 | c = CTRL(k); | |
753 | if (inglobal) | |
754 | addr1 = addr2 = dot; | |
887e3e0d MH |
755 | else { |
756 | if (dot == dol) | |
757 | error("At EOF|At end-of-file"); | |
d9fbdd64 | 758 | addr1 = addr2 = dot + 1; |
887e3e0d | 759 | } |
d9fbdd64 MH |
760 | } |
761 | setdot(); | |
762 | nonzero(); | |
763 | if (seensemi) | |
764 | addr1 = addr2; | |
765 | getline(*addr1); | |
766 | if (c == CTRL(k)) { | |
767 | flush1(); | |
768 | destline--; | |
769 | if (hadpr) | |
770 | shudclob = 1; | |
771 | } | |
772 | plines(addr1, addr2, 1); | |
773 | continue; | |
774 | ||
d266c416 MH |
775 | /* " */ |
776 | case '"': | |
777 | comment(); | |
778 | continue; | |
779 | ||
d9fbdd64 MH |
780 | /* # */ |
781 | case '#': | |
782 | numberit: | |
783 | setCNL(); | |
784 | ignorf(setnumb(1)); | |
785 | pflag = 0; | |
786 | goto print; | |
787 | ||
788 | /* = */ | |
789 | case '=': | |
790 | newline(); | |
791 | setall(); | |
887e3e0d MH |
792 | if (inglobal == 2) |
793 | pofix(); | |
d9fbdd64 MH |
794 | printf("%d", lineno(addr2)); |
795 | noonl(); | |
796 | continue; | |
797 | ||
798 | /* ! */ | |
799 | case '!': | |
800 | if (addr2 != 0) { | |
d266c416 | 801 | vmacchng(0); |
d9fbdd64 MH |
802 | unix0(0); |
803 | setdot(); | |
804 | filter(2); | |
805 | } else { | |
806 | unix0(1); | |
887e3e0d | 807 | pofix(); |
d9fbdd64 MH |
808 | putpad(TE); |
809 | flush(); | |
810 | unixwt(1, unixex("-c", uxb, 0, 0)); | |
d266c416 | 811 | vclrech(1); /* vcontin(0); */ |
d9fbdd64 MH |
812 | nochng(); |
813 | } | |
814 | continue; | |
815 | ||
816 | /* < */ | |
817 | /* > */ | |
818 | case '<': | |
819 | case '>': | |
820 | for (cnt = 1; peekchar() == c; cnt++) | |
821 | ignchar(); | |
822 | setCNL(); | |
d266c416 | 823 | vmacchng(0); |
d9fbdd64 MH |
824 | shift(c, cnt); |
825 | continue; | |
826 | ||
827 | /* ^D */ | |
828 | /* EOF */ | |
829 | case CTRL(d): | |
830 | case EOF: | |
831 | if (exitoneof) { | |
832 | if (addr2 != 0) | |
833 | dot = addr2; | |
834 | return; | |
835 | } | |
836 | if (!isatty(0)) { | |
837 | if (intty) | |
838 | /* | |
839 | * Chtty sys call at UCB may cause a | |
840 | * input which was a tty to suddenly be | |
841 | * turned into /dev/null. | |
842 | */ | |
843 | onhup(); | |
844 | return; | |
845 | } | |
846 | if (addr2 != 0) { | |
847 | setlastchar('\n'); | |
848 | putnl(); | |
849 | } | |
850 | if (dol == zero) { | |
851 | if (addr2 == 0) | |
852 | putnl(); | |
853 | notempty(); | |
854 | } | |
855 | ungetchar(EOF); | |
856 | zop(hadpr); | |
857 | continue; | |
858 | ||
859 | default: | |
860 | if (!isalpha(c)) | |
861 | break; | |
862 | ungetchar(c); | |
863 | tailprim("", 0, 0); | |
864 | } | |
865 | error("What?|Unknown command character '%c'", c); | |
866 | } | |
867 | } |