Commit | Line | Data |
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205a2d85 | 1 | #ifndef lint |
54e0d068 | 2 | static char sccsid[] = "@(#)ed.c 4.9 (Berkeley) %G%"; |
205a2d85 | 3 | #endif |
31e58db8 KM |
4 | |
5 | /* | |
6 | * Editor | |
7 | */ | |
8 | ||
9 | #include <signal.h> | |
10 | #include <sgtty.h> | |
2dd1db50 | 11 | #undef CEOF |
31e58db8 | 12 | #include <setjmp.h> |
dc891cfc KB |
13 | #include "pathnames.h" |
14 | ||
31e58db8 KM |
15 | #define NULL 0 |
16 | #define FNSIZE 64 | |
17 | #define LBSIZE 512 | |
18 | #define ESIZE 128 | |
19 | #define GBSIZE 256 | |
20 | #define NBRA 5 | |
21 | #define EOF -1 | |
31e58db8 KM |
22 | |
23 | #define CBRA 1 | |
24 | #define CCHR 2 | |
25 | #define CDOT 4 | |
26 | #define CCL 6 | |
27 | #define NCCL 8 | |
28 | #define CDOL 10 | |
29 | #define CEOF 11 | |
30 | #define CKET 12 | |
31 | #define CBACK 14 | |
32 | ||
33 | #define STAR 01 | |
34 | ||
35 | char Q[] = ""; | |
36 | char T[] = "TMP"; | |
37 | #define READ 0 | |
38 | #define WRITE 1 | |
39 | ||
40 | int peekc; | |
41 | int lastc; | |
42 | char savedfile[FNSIZE]; | |
43 | char file[FNSIZE]; | |
44 | char linebuf[LBSIZE]; | |
45 | char rhsbuf[LBSIZE/2]; | |
46 | char expbuf[ESIZE+4]; | |
47 | int circfl; | |
48 | int *zero; | |
49 | int *dot; | |
50 | int *dol; | |
51 | int *addr1; | |
52 | int *addr2; | |
53 | char genbuf[LBSIZE]; | |
54 | long count; | |
55 | char *nextip; | |
56 | char *linebp; | |
57 | int ninbuf; | |
58 | int io; | |
59 | int pflag; | |
60 | long lseek(); | |
61 | int (*oldhup)(); | |
62 | int (*oldquit)(); | |
63 | int vflag = 1; | |
62793f1c | 64 | |
62793f1c | 65 | |
31e58db8 KM |
66 | int listf; |
67 | int col; | |
68 | char *globp; | |
69 | int tfile = -1; | |
70 | int tline; | |
54e0d068 | 71 | char tfname[sizeof(_PATH_TMP) + 20]; |
31e58db8 KM |
72 | char *loc1; |
73 | char *loc2; | |
74 | char *locs; | |
75 | char ibuff[512]; | |
76 | int iblock = -1; | |
77 | char obuff[512]; | |
78 | int oblock = -1; | |
79 | int ichanged; | |
80 | int nleft; | |
81 | char WRERR[] = "WRITE ERROR"; | |
82 | int names[26]; | |
83 | int anymarks; | |
84 | char *braslist[NBRA]; | |
85 | char *braelist[NBRA]; | |
86 | int nbra; | |
87 | int subnewa; | |
88 | int subolda; | |
89 | int fchange; | |
90 | int wrapp; | |
91 | unsigned nlall = 128; | |
92 | ||
93 | int *address(); | |
94 | char *getline(); | |
95 | char *getblock(); | |
96 | char *place(); | |
97 | char *mktemp(); | |
98 | char *malloc(); | |
99 | char *realloc(); | |
100 | jmp_buf savej; | |
101 | ||
102 | main(argc, argv) | |
103 | char **argv; | |
104 | { | |
105 | register char *p1, *p2; | |
106 | extern int onintr(), quit(), onhup(); | |
107 | int (*oldintr)(); | |
108 | ||
109 | oldquit = signal(SIGQUIT, SIG_IGN); | |
110 | oldhup = signal(SIGHUP, SIG_IGN); | |
111 | oldintr = signal(SIGINT, SIG_IGN); | |
112 | if ((int)signal(SIGTERM, SIG_IGN) == 0) | |
113 | signal(SIGTERM, quit); | |
114 | argv++; | |
115 | while (argc > 1 && **argv=='-') { | |
116 | switch((*argv)[1]) { | |
117 | ||
118 | case '\0': | |
119 | vflag = 0; | |
120 | break; | |
121 | ||
122 | case 'q': | |
123 | signal(SIGQUIT, SIG_DFL); | |
124 | vflag = 1; | |
125 | break; | |
126 | ||
31e58db8 KM |
127 | } |
128 | argv++; | |
129 | argc--; | |
130 | } | |
31e58db8 KM |
131 | |
132 | if (argc>1) { | |
133 | p1 = *argv; | |
134 | p2 = savedfile; | |
135 | while (*p2++ = *p1++) | |
136 | ; | |
137 | globp = "r"; | |
138 | } | |
139 | zero = (int *)malloc(nlall*sizeof(int)); | |
54e0d068 KB |
140 | (void)strcpy(tfname, _PATH_TMP); |
141 | (void)strcat(tfname, "_edXXXXXX"); | |
142 | (void)mktemp(tfname); | |
31e58db8 KM |
143 | init(); |
144 | if (((int)oldintr&01) == 0) | |
145 | signal(SIGINT, onintr); | |
146 | if (((int)oldhup&01) == 0) | |
147 | signal(SIGHUP, onhup); | |
148 | setjmp(savej); | |
149 | commands(); | |
150 | quit(); | |
151 | } | |
152 | ||
153 | commands() | |
154 | { | |
155 | int getfile(), gettty(); | |
156 | register *a1, c; | |
157 | ||
158 | for (;;) { | |
159 | if (pflag) { | |
160 | pflag = 0; | |
161 | addr1 = addr2 = dot; | |
162 | goto print; | |
163 | } | |
164 | addr1 = 0; | |
165 | addr2 = 0; | |
166 | do { | |
167 | addr1 = addr2; | |
168 | if ((a1 = address())==0) { | |
169 | c = getchr(); | |
170 | break; | |
171 | } | |
172 | addr2 = a1; | |
173 | if ((c=getchr()) == ';') { | |
174 | c = ','; | |
175 | dot = a1; | |
176 | } | |
177 | } while (c==','); | |
178 | if (addr1==0) | |
179 | addr1 = addr2; | |
180 | switch(c) { | |
181 | ||
182 | case 'a': | |
183 | setdot(); | |
184 | newline(); | |
185 | append(gettty, addr2); | |
186 | continue; | |
187 | ||
188 | case 'c': | |
189 | delete(); | |
190 | append(gettty, addr1-1); | |
191 | continue; | |
192 | ||
193 | case 'd': | |
194 | delete(); | |
195 | continue; | |
196 | ||
197 | case 'E': | |
198 | fchange = 0; | |
199 | c = 'e'; | |
200 | case 'e': | |
201 | setnoaddr(); | |
202 | if (vflag && fchange) { | |
203 | fchange = 0; | |
204 | error(Q); | |
205 | } | |
206 | filename(c); | |
207 | init(); | |
208 | addr2 = zero; | |
209 | goto caseread; | |
210 | ||
211 | case 'f': | |
212 | setnoaddr(); | |
213 | filename(c); | |
214 | puts(savedfile); | |
215 | continue; | |
216 | ||
217 | case 'g': | |
218 | global(1); | |
219 | continue; | |
220 | ||
221 | case 'i': | |
222 | setdot(); | |
223 | nonzero(); | |
224 | newline(); | |
225 | append(gettty, addr2-1); | |
226 | continue; | |
227 | ||
228 | ||
229 | case 'j': | |
230 | if (addr2==0) { | |
231 | addr1 = dot; | |
232 | addr2 = dot+1; | |
233 | } | |
234 | setdot(); | |
235 | newline(); | |
236 | nonzero(); | |
237 | join(); | |
238 | continue; | |
239 | ||
240 | case 'k': | |
241 | if ((c = getchr()) < 'a' || c > 'z') | |
242 | error(Q); | |
243 | newline(); | |
244 | setdot(); | |
245 | nonzero(); | |
246 | names[c-'a'] = *addr2 & ~01; | |
247 | anymarks |= 01; | |
248 | continue; | |
249 | ||
250 | case 'm': | |
251 | move(0); | |
252 | continue; | |
253 | ||
254 | case '\n': | |
255 | if (addr2==0) | |
256 | addr2 = dot+1; | |
257 | addr1 = addr2; | |
258 | goto print; | |
259 | ||
260 | case 'l': | |
261 | listf++; | |
262 | case 'p': | |
263 | case 'P': | |
264 | newline(); | |
265 | print: | |
266 | setdot(); | |
267 | nonzero(); | |
268 | a1 = addr1; | |
269 | do { | |
270 | puts(getline(*a1++)); | |
271 | } while (a1 <= addr2); | |
272 | dot = addr2; | |
273 | listf = 0; | |
274 | continue; | |
275 | ||
276 | case 'Q': | |
277 | fchange = 0; | |
278 | case 'q': | |
279 | setnoaddr(); | |
280 | newline(); | |
281 | quit(); | |
282 | ||
283 | case 'r': | |
284 | filename(c); | |
285 | caseread: | |
286 | if ((io = open(file, 0)) < 0) { | |
287 | lastc = '\n'; | |
288 | error(file); | |
289 | } | |
290 | setall(); | |
291 | ninbuf = 0; | |
292 | c = zero != dol; | |
293 | append(getfile, addr2); | |
294 | exfile(); | |
295 | fchange = c; | |
296 | continue; | |
297 | ||
298 | case 's': | |
299 | setdot(); | |
300 | nonzero(); | |
301 | substitute(globp!=0); | |
302 | continue; | |
303 | ||
304 | case 't': | |
305 | move(1); | |
306 | continue; | |
307 | ||
308 | case 'u': | |
309 | setdot(); | |
310 | nonzero(); | |
311 | newline(); | |
312 | if ((*addr2&~01) != subnewa) | |
313 | error(Q); | |
314 | *addr2 = subolda; | |
315 | dot = addr2; | |
316 | continue; | |
317 | ||
318 | case 'v': | |
319 | global(0); | |
320 | continue; | |
321 | ||
322 | case 'W': | |
323 | wrapp++; | |
324 | case 'w': | |
325 | setall(); | |
326 | nonzero(); | |
327 | filename(c); | |
328 | if(!wrapp || | |
329 | ((io = open(file,1)) == -1) || | |
330 | ((lseek(io, 0L, 2)) == -1)) | |
331 | if ((io = creat(file, 0666)) < 0) | |
332 | error(file); | |
333 | wrapp = 0; | |
334 | putfile(); | |
335 | exfile(); | |
336 | if (addr1==zero+1 && addr2==dol) | |
337 | fchange = 0; | |
338 | continue; | |
339 | ||
31e58db8 KM |
340 | |
341 | ||
342 | case '=': | |
343 | setall(); | |
344 | newline(); | |
345 | count = (addr2-zero)&077777; | |
346 | putd(); | |
347 | putchr('\n'); | |
348 | continue; | |
349 | ||
350 | case '!': | |
351 | callunix(); | |
352 | continue; | |
353 | ||
354 | case EOF: | |
355 | return; | |
356 | ||
357 | } | |
358 | error(Q); | |
359 | } | |
360 | } | |
361 | ||
362 | int * | |
363 | address() | |
364 | { | |
365 | register *a1, minus, c; | |
366 | int n, relerr; | |
367 | ||
368 | minus = 0; | |
369 | a1 = 0; | |
370 | for (;;) { | |
371 | c = getchr(); | |
372 | if ('0'<=c && c<='9') { | |
373 | n = 0; | |
374 | do { | |
375 | n *= 10; | |
376 | n += c - '0'; | |
377 | } while ((c = getchr())>='0' && c<='9'); | |
378 | peekc = c; | |
379 | if (a1==0) | |
380 | a1 = zero; | |
381 | if (minus<0) | |
382 | n = -n; | |
383 | a1 += n; | |
384 | minus = 0; | |
385 | continue; | |
386 | } | |
387 | relerr = 0; | |
388 | if (a1 || minus) | |
389 | relerr++; | |
390 | switch(c) { | |
391 | case ' ': | |
392 | case '\t': | |
393 | continue; | |
394 | ||
395 | case '+': | |
396 | minus++; | |
397 | if (a1==0) | |
398 | a1 = dot; | |
399 | continue; | |
400 | ||
401 | case '-': | |
402 | case '^': | |
403 | minus--; | |
404 | if (a1==0) | |
405 | a1 = dot; | |
406 | continue; | |
407 | ||
408 | case '?': | |
409 | case '/': | |
410 | compile(c); | |
411 | a1 = dot; | |
412 | for (;;) { | |
413 | if (c=='/') { | |
414 | a1++; | |
415 | if (a1 > dol) | |
416 | a1 = zero; | |
417 | } else { | |
418 | a1--; | |
419 | if (a1 < zero) | |
420 | a1 = dol; | |
421 | } | |
422 | if (execute(0, a1)) | |
423 | break; | |
424 | if (a1==dot) | |
425 | error(Q); | |
426 | } | |
427 | break; | |
428 | ||
429 | case '$': | |
430 | a1 = dol; | |
431 | break; | |
432 | ||
433 | case '.': | |
434 | a1 = dot; | |
435 | break; | |
436 | ||
437 | case '\'': | |
438 | if ((c = getchr()) < 'a' || c > 'z') | |
439 | error(Q); | |
440 | for (a1=zero; a1<=dol; a1++) | |
441 | if (names[c-'a'] == (*a1 & ~01)) | |
442 | break; | |
443 | break; | |
444 | ||
445 | default: | |
446 | peekc = c; | |
447 | if (a1==0) | |
448 | return(0); | |
449 | a1 += minus; | |
450 | if (a1<zero || a1>dol) | |
451 | error(Q); | |
452 | return(a1); | |
453 | } | |
454 | if (relerr) | |
455 | error(Q); | |
456 | } | |
457 | } | |
458 | ||
459 | setdot() | |
460 | { | |
461 | if (addr2 == 0) | |
462 | addr1 = addr2 = dot; | |
463 | if (addr1 > addr2) | |
464 | error(Q); | |
465 | } | |
466 | ||
467 | setall() | |
468 | { | |
469 | if (addr2==0) { | |
470 | addr1 = zero+1; | |
471 | addr2 = dol; | |
472 | if (dol==zero) | |
473 | addr1 = zero; | |
474 | } | |
475 | setdot(); | |
476 | } | |
477 | ||
478 | setnoaddr() | |
479 | { | |
480 | if (addr2) | |
481 | error(Q); | |
482 | } | |
483 | ||
484 | nonzero() | |
485 | { | |
486 | if (addr1<=zero || addr2>dol) | |
487 | error(Q); | |
488 | } | |
489 | ||
490 | newline() | |
491 | { | |
492 | register c; | |
493 | ||
494 | if ((c = getchr()) == '\n') | |
495 | return; | |
496 | if (c=='p' || c=='l') { | |
497 | pflag++; | |
498 | if (c=='l') | |
499 | listf++; | |
500 | if (getchr() == '\n') | |
501 | return; | |
502 | } | |
503 | error(Q); | |
504 | } | |
505 | ||
506 | filename(comm) | |
507 | { | |
508 | register char *p1, *p2; | |
509 | register c; | |
510 | ||
511 | count = 0; | |
512 | c = getchr(); | |
513 | if (c=='\n' || c==EOF) { | |
514 | p1 = savedfile; | |
515 | if (*p1==0 && comm!='f') | |
516 | error(Q); | |
517 | p2 = file; | |
518 | while (*p2++ = *p1++) | |
519 | ; | |
520 | return; | |
521 | } | |
522 | if (c!=' ') | |
523 | error(Q); | |
524 | while ((c = getchr()) == ' ') | |
525 | ; | |
526 | if (c=='\n') | |
527 | error(Q); | |
528 | p1 = file; | |
529 | do { | |
530 | *p1++ = c; | |
531 | if (c==' ' || c==EOF) | |
532 | error(Q); | |
533 | } while ((c = getchr()) != '\n'); | |
534 | *p1++ = 0; | |
535 | if (savedfile[0]==0 || comm=='e' || comm=='f') { | |
536 | p1 = savedfile; | |
537 | p2 = file; | |
538 | while (*p1++ = *p2++) | |
539 | ; | |
540 | } | |
541 | } | |
542 | ||
543 | exfile() | |
544 | { | |
545 | close(io); | |
546 | io = -1; | |
547 | if (vflag) { | |
548 | putd(); | |
549 | putchr('\n'); | |
550 | } | |
551 | } | |
552 | ||
553 | onintr() | |
554 | { | |
555 | signal(SIGINT, onintr); | |
556 | putchr('\n'); | |
557 | lastc = '\n'; | |
558 | error(Q); | |
559 | } | |
560 | ||
561 | onhup() | |
562 | { | |
563 | signal(SIGINT, SIG_IGN); | |
564 | signal(SIGHUP, SIG_IGN); | |
565 | if (dol > zero) { | |
566 | addr1 = zero+1; | |
567 | addr2 = dol; | |
568 | io = creat("ed.hup", 0666); | |
569 | if (io > 0) | |
570 | putfile(); | |
571 | } | |
572 | fchange = 0; | |
573 | quit(); | |
574 | } | |
575 | ||
576 | error(s) | |
577 | char *s; | |
578 | { | |
579 | register c; | |
580 | ||
581 | wrapp = 0; | |
582 | listf = 0; | |
583 | putchr('?'); | |
584 | puts(s); | |
585 | count = 0; | |
586 | lseek(0, (long)0, 2); | |
587 | pflag = 0; | |
588 | if (globp) | |
589 | lastc = '\n'; | |
590 | globp = 0; | |
591 | peekc = lastc; | |
592 | if(lastc) | |
593 | while ((c = getchr()) != '\n' && c != EOF) | |
594 | ; | |
595 | if (io > 0) { | |
596 | close(io); | |
597 | io = -1; | |
598 | } | |
599 | longjmp(savej, 1); | |
600 | } | |
601 | ||
602 | getchr() | |
603 | { | |
604 | char c; | |
605 | if (lastc=peekc) { | |
606 | peekc = 0; | |
607 | return(lastc); | |
608 | } | |
609 | if (globp) { | |
610 | if ((lastc = *globp++) != 0) | |
611 | return(lastc); | |
612 | globp = 0; | |
613 | return(EOF); | |
614 | } | |
615 | if (read(0, &c, 1) <= 0) | |
616 | return(lastc = EOF); | |
617 | lastc = c&0177; | |
618 | return(lastc); | |
619 | } | |
620 | ||
621 | gettty() | |
622 | { | |
623 | register c; | |
624 | register char *gf; | |
625 | register char *p; | |
626 | ||
627 | p = linebuf; | |
628 | gf = globp; | |
629 | while ((c = getchr()) != '\n') { | |
630 | if (c==EOF) { | |
631 | if (gf) | |
632 | peekc = c; | |
633 | return(c); | |
634 | } | |
635 | if ((c &= 0177) == 0) | |
636 | continue; | |
637 | *p++ = c; | |
638 | if (p >= &linebuf[LBSIZE-2]) | |
639 | error(Q); | |
640 | } | |
641 | *p++ = 0; | |
642 | if (linebuf[0]=='.' && linebuf[1]==0) | |
643 | return(EOF); | |
644 | return(0); | |
645 | } | |
646 | ||
647 | getfile() | |
648 | { | |
649 | register c; | |
650 | register char *lp, *fp; | |
651 | ||
652 | lp = linebuf; | |
653 | fp = nextip; | |
654 | do { | |
655 | if (--ninbuf < 0) { | |
656 | if ((ninbuf = read(io, genbuf, LBSIZE)-1) < 0) | |
657 | return(EOF); | |
658 | fp = genbuf; | |
659 | while(fp < &genbuf[ninbuf]) { | |
660 | if (*fp++ & 0200) { | |
31e58db8 KM |
661 | break; |
662 | } | |
663 | } | |
664 | fp = genbuf; | |
665 | } | |
666 | c = *fp++; | |
667 | if (c=='\0') | |
668 | continue; | |
669 | if (c&0200 || lp >= &linebuf[LBSIZE]) { | |
670 | lastc = '\n'; | |
671 | error(Q); | |
672 | } | |
673 | *lp++ = c; | |
674 | count++; | |
675 | } while (c != '\n'); | |
676 | *--lp = 0; | |
677 | nextip = fp; | |
678 | return(0); | |
679 | } | |
680 | ||
681 | putfile() | |
682 | { | |
683 | int *a1, n; | |
684 | register char *fp, *lp; | |
685 | register nib; | |
686 | ||
687 | nib = 512; | |
688 | fp = genbuf; | |
689 | a1 = addr1; | |
690 | do { | |
691 | lp = getline(*a1++); | |
692 | for (;;) { | |
693 | if (--nib < 0) { | |
694 | n = fp-genbuf; | |
31e58db8 KM |
695 | if(write(io, genbuf, n) != n) { |
696 | puts(WRERR); | |
697 | error(Q); | |
698 | } | |
699 | nib = 511; | |
700 | fp = genbuf; | |
701 | } | |
702 | count++; | |
703 | if ((*fp++ = *lp++) == 0) { | |
704 | fp[-1] = '\n'; | |
705 | break; | |
706 | } | |
707 | } | |
708 | } while (a1 <= addr2); | |
709 | n = fp-genbuf; | |
31e58db8 KM |
710 | if(write(io, genbuf, n) != n) { |
711 | puts(WRERR); | |
712 | error(Q); | |
713 | } | |
714 | } | |
715 | ||
716 | append(f, a) | |
717 | int *a; | |
718 | int (*f)(); | |
719 | { | |
720 | register *a1, *a2, *rdot; | |
721 | int nline, tl; | |
722 | ||
723 | nline = 0; | |
724 | dot = a; | |
725 | while ((*f)() == 0) { | |
726 | if ((dol-zero)+1 >= nlall) { | |
727 | int *ozero = zero; | |
728 | nlall += 512; | |
31e58db8 KM |
729 | if ((zero = (int *)realloc((char *)zero, nlall*sizeof(int)))==NULL) { |
730 | lastc = '\n'; | |
731 | zero = ozero; | |
732 | error("MEM?"); | |
733 | } | |
734 | dot += zero - ozero; | |
735 | dol += zero - ozero; | |
736 | } | |
737 | tl = putline(); | |
738 | nline++; | |
739 | a1 = ++dol; | |
740 | a2 = a1+1; | |
741 | rdot = ++dot; | |
742 | while (a1 > rdot) | |
743 | *--a2 = *--a1; | |
744 | *rdot = tl; | |
745 | } | |
746 | return(nline); | |
747 | } | |
748 | ||
749 | callunix() | |
750 | { | |
751 | register (*savint)(), pid, rpid; | |
752 | int retcode; | |
753 | ||
754 | setnoaddr(); | |
755 | if ((pid = fork()) == 0) { | |
756 | signal(SIGHUP, oldhup); | |
757 | signal(SIGQUIT, oldquit); | |
dc891cfc | 758 | execl(_PATH_BSHELL, "sh", "-t", 0); |
31e58db8 KM |
759 | exit(0100); |
760 | } | |
761 | savint = signal(SIGINT, SIG_IGN); | |
762 | while ((rpid = wait(&retcode)) != pid && rpid != -1) | |
763 | ; | |
764 | signal(SIGINT, savint); | |
765 | puts("!"); | |
766 | } | |
767 | ||
768 | quit() | |
769 | { | |
770 | if (vflag && fchange && dol!=zero) { | |
771 | fchange = 0; | |
772 | error(Q); | |
773 | } | |
774 | unlink(tfname); | |
775 | exit(0); | |
776 | } | |
777 | ||
778 | delete() | |
779 | { | |
780 | setdot(); | |
781 | newline(); | |
782 | nonzero(); | |
783 | rdelete(addr1, addr2); | |
784 | } | |
785 | ||
786 | rdelete(ad1, ad2) | |
787 | int *ad1, *ad2; | |
788 | { | |
789 | register *a1, *a2, *a3; | |
790 | ||
791 | a1 = ad1; | |
792 | a2 = ad2+1; | |
793 | a3 = dol; | |
794 | dol -= a2 - a1; | |
795 | do { | |
796 | *a1++ = *a2++; | |
797 | } while (a2 <= a3); | |
798 | a1 = ad1; | |
799 | if (a1 > dol) | |
800 | a1 = dol; | |
801 | dot = a1; | |
802 | fchange = 1; | |
803 | } | |
804 | ||
805 | gdelete() | |
806 | { | |
807 | register *a1, *a2, *a3; | |
808 | ||
809 | a3 = dol; | |
810 | for (a1=zero+1; (*a1&01)==0; a1++) | |
811 | if (a1>=a3) | |
812 | return; | |
813 | for (a2=a1+1; a2<=a3;) { | |
814 | if (*a2&01) { | |
815 | a2++; | |
816 | dot = a1; | |
817 | } else | |
818 | *a1++ = *a2++; | |
819 | } | |
820 | dol = a1-1; | |
821 | if (dot>dol) | |
822 | dot = dol; | |
823 | fchange = 1; | |
824 | } | |
825 | ||
826 | char * | |
827 | getline(tl) | |
828 | { | |
829 | register char *bp, *lp; | |
830 | register nl; | |
831 | ||
832 | lp = linebuf; | |
833 | bp = getblock(tl, READ); | |
834 | nl = nleft; | |
835 | tl &= ~0377; | |
836 | while (*lp++ = *bp++) | |
837 | if (--nl == 0) { | |
838 | bp = getblock(tl+=0400, READ); | |
839 | nl = nleft; | |
840 | } | |
841 | return(linebuf); | |
842 | } | |
843 | ||
844 | putline() | |
845 | { | |
846 | register char *bp, *lp; | |
847 | register nl; | |
848 | int tl; | |
849 | ||
850 | fchange = 1; | |
851 | lp = linebuf; | |
852 | tl = tline; | |
853 | bp = getblock(tl, WRITE); | |
854 | nl = nleft; | |
855 | tl &= ~0377; | |
856 | while (*bp = *lp++) { | |
857 | if (*bp++ == '\n') { | |
858 | *--bp = 0; | |
859 | linebp = lp; | |
860 | break; | |
861 | } | |
862 | if (--nl == 0) { | |
863 | bp = getblock(tl+=0400, WRITE); | |
864 | nl = nleft; | |
865 | } | |
866 | } | |
867 | nl = tline; | |
868 | tline += (((lp-linebuf)+03)>>1)&077776; | |
869 | return(nl); | |
870 | } | |
871 | ||
872 | char * | |
873 | getblock(atl, iof) | |
874 | { | |
875 | extern read(), write(); | |
876 | register bno, off; | |
877 | register char *p1, *p2; | |
878 | register int n; | |
879 | ||
880 | bno = (atl>>8)&0377; | |
881 | off = (atl<<1)&0774; | |
882 | if (bno >= 255) { | |
883 | lastc = '\n'; | |
884 | error(T); | |
885 | } | |
886 | nleft = 512 - off; | |
887 | if (bno==iblock) { | |
888 | ichanged |= iof; | |
889 | return(ibuff+off); | |
890 | } | |
891 | if (bno==oblock) | |
892 | return(obuff+off); | |
893 | if (iof==READ) { | |
894 | if (ichanged) { | |
31e58db8 KM |
895 | blkio(iblock, ibuff, write); |
896 | } | |
897 | ichanged = 0; | |
898 | iblock = bno; | |
899 | blkio(bno, ibuff, read); | |
31e58db8 KM |
900 | return(ibuff+off); |
901 | } | |
902 | if (oblock>=0) { | |
31e58db8 KM |
903 | blkio(oblock, obuff, write); |
904 | } | |
905 | oblock = bno; | |
906 | return(obuff+off); | |
907 | } | |
908 | ||
909 | blkio(b, buf, iofcn) | |
910 | char *buf; | |
911 | int (*iofcn)(); | |
912 | { | |
913 | lseek(tfile, (long)b<<9, 0); | |
914 | if ((*iofcn)(tfile, buf, 512) != 512) { | |
915 | error(T); | |
916 | } | |
917 | } | |
918 | ||
919 | init() | |
920 | { | |
921 | register *markp; | |
922 | ||
923 | close(tfile); | |
924 | tline = 2; | |
925 | for (markp = names; markp < &names[26]; ) | |
926 | *markp++ = 0; | |
927 | subnewa = 0; | |
928 | anymarks = 0; | |
929 | iblock = -1; | |
930 | oblock = -1; | |
931 | ichanged = 0; | |
932 | close(creat(tfname, 0600)); | |
933 | tfile = open(tfname, 2); | |
31e58db8 KM |
934 | dot = dol = zero; |
935 | } | |
936 | ||
937 | global(k) | |
938 | { | |
939 | register char *gp; | |
940 | register c; | |
941 | register int *a1; | |
942 | char globuf[GBSIZE]; | |
943 | ||
944 | if (globp) | |
945 | error(Q); | |
946 | setall(); | |
947 | nonzero(); | |
948 | if ((c=getchr())=='\n') | |
949 | error(Q); | |
950 | compile(c); | |
951 | gp = globuf; | |
952 | while ((c = getchr()) != '\n') { | |
953 | if (c==EOF) | |
954 | error(Q); | |
955 | if (c=='\\') { | |
956 | c = getchr(); | |
957 | if (c!='\n') | |
958 | *gp++ = '\\'; | |
959 | } | |
960 | *gp++ = c; | |
961 | if (gp >= &globuf[GBSIZE-2]) | |
962 | error(Q); | |
963 | } | |
964 | *gp++ = '\n'; | |
965 | *gp++ = 0; | |
966 | for (a1=zero; a1<=dol; a1++) { | |
967 | *a1 &= ~01; | |
968 | if (a1>=addr1 && a1<=addr2 && execute(0, a1)==k) | |
969 | *a1 |= 01; | |
970 | } | |
971 | /* | |
972 | * Special case: g/.../d (avoid n^2 algorithm) | |
973 | */ | |
974 | if (globuf[0]=='d' && globuf[1]=='\n' && globuf[2]=='\0') { | |
975 | gdelete(); | |
976 | return; | |
977 | } | |
978 | for (a1=zero; a1<=dol; a1++) { | |
979 | if (*a1 & 01) { | |
980 | *a1 &= ~01; | |
981 | dot = a1; | |
982 | globp = globuf; | |
983 | commands(); | |
984 | a1 = zero; | |
985 | } | |
986 | } | |
987 | } | |
988 | ||
989 | join() | |
990 | { | |
991 | register char *gp, *lp; | |
992 | register *a1; | |
993 | ||
994 | gp = genbuf; | |
995 | for (a1=addr1; a1<=addr2; a1++) { | |
996 | lp = getline(*a1); | |
997 | while (*gp = *lp++) | |
998 | if (gp++ >= &genbuf[LBSIZE-2]) | |
999 | error(Q); | |
1000 | } | |
1001 | lp = linebuf; | |
1002 | gp = genbuf; | |
1003 | while (*lp++ = *gp++) | |
1004 | ; | |
1005 | *addr1 = putline(); | |
1006 | if (addr1<addr2) | |
1007 | rdelete(addr1+1, addr2); | |
1008 | dot = addr1; | |
1009 | } | |
1010 | ||
1011 | substitute(inglob) | |
1012 | { | |
1013 | register *markp, *a1, nl; | |
1014 | int gsubf; | |
1015 | int getsub(); | |
1016 | ||
1017 | gsubf = compsub(); | |
1018 | for (a1 = addr1; a1 <= addr2; a1++) { | |
1019 | int *ozero; | |
1020 | if (execute(0, a1)==0) | |
1021 | continue; | |
1022 | inglob |= 01; | |
1023 | dosub(); | |
1024 | if (gsubf) { | |
1025 | while (*loc2) { | |
1026 | if (execute(1, (int *)0)==0) | |
1027 | break; | |
1028 | dosub(); | |
1029 | } | |
1030 | } | |
1031 | subnewa = putline(); | |
1032 | *a1 &= ~01; | |
1033 | if (anymarks) { | |
1034 | for (markp = names; markp < &names[26]; markp++) | |
1035 | if (*markp == *a1) | |
1036 | *markp = subnewa; | |
1037 | } | |
1038 | subolda = *a1; | |
1039 | *a1 = subnewa; | |
1040 | ozero = zero; | |
1041 | nl = append(getsub, a1); | |
1042 | nl += zero-ozero; | |
1043 | a1 += nl; | |
1044 | addr2 += nl; | |
1045 | } | |
1046 | if (inglob==0) | |
1047 | error(Q); | |
1048 | } | |
1049 | ||
1050 | compsub() | |
1051 | { | |
1052 | register seof, c; | |
1053 | register char *p; | |
1054 | ||
1055 | if ((seof = getchr()) == '\n' || seof == ' ') | |
1056 | error(Q); | |
1057 | compile(seof); | |
1058 | p = rhsbuf; | |
1059 | for (;;) { | |
1060 | c = getchr(); | |
1061 | if (c=='\\') | |
1062 | c = getchr() | 0200; | |
1063 | if (c=='\n') { | |
1064 | if (globp) | |
1065 | c |= 0200; | |
1066 | else | |
1067 | error(Q); | |
1068 | } | |
1069 | if (c==seof) | |
1070 | break; | |
1071 | *p++ = c; | |
1072 | if (p >= &rhsbuf[LBSIZE/2]) | |
1073 | error(Q); | |
1074 | } | |
1075 | *p++ = 0; | |
1076 | if ((peekc = getchr()) == 'g') { | |
1077 | peekc = 0; | |
1078 | newline(); | |
1079 | return(1); | |
1080 | } | |
1081 | newline(); | |
1082 | return(0); | |
1083 | } | |
1084 | ||
1085 | getsub() | |
1086 | { | |
1087 | register char *p1, *p2; | |
1088 | ||
1089 | p1 = linebuf; | |
1090 | if ((p2 = linebp) == 0) | |
1091 | return(EOF); | |
1092 | while (*p1++ = *p2++) | |
1093 | ; | |
1094 | linebp = 0; | |
1095 | return(0); | |
1096 | } | |
1097 | ||
1098 | dosub() | |
1099 | { | |
1100 | register char *lp, *sp, *rp; | |
1101 | int c; | |
1102 | ||
1103 | lp = linebuf; | |
1104 | sp = genbuf; | |
1105 | rp = rhsbuf; | |
1106 | while (lp < loc1) | |
1107 | *sp++ = *lp++; | |
1108 | while (c = *rp++&0377) { | |
1109 | if (c=='&') { | |
1110 | sp = place(sp, loc1, loc2); | |
1111 | continue; | |
1112 | } else if (c&0200 && (c &= 0177) >='1' && c < nbra+'1') { | |
1113 | sp = place(sp, braslist[c-'1'], braelist[c-'1']); | |
1114 | continue; | |
1115 | } | |
1116 | *sp++ = c&0177; | |
1117 | if (sp >= &genbuf[LBSIZE]) | |
1118 | error(Q); | |
1119 | } | |
1120 | lp = loc2; | |
1121 | loc2 = sp - genbuf + linebuf; | |
1122 | while (*sp++ = *lp++) | |
1123 | if (sp >= &genbuf[LBSIZE]) | |
1124 | error(Q); | |
1125 | lp = linebuf; | |
1126 | sp = genbuf; | |
1127 | while (*lp++ = *sp++) | |
1128 | ; | |
1129 | } | |
1130 | ||
1131 | char * | |
1132 | place(sp, l1, l2) | |
1133 | register char *sp, *l1, *l2; | |
1134 | { | |
1135 | ||
1136 | while (l1 < l2) { | |
1137 | *sp++ = *l1++; | |
1138 | if (sp >= &genbuf[LBSIZE]) | |
1139 | error(Q); | |
1140 | } | |
1141 | return(sp); | |
1142 | } | |
1143 | ||
1144 | move(cflag) | |
1145 | { | |
1146 | register int *adt, *ad1, *ad2; | |
1147 | int getcopy(); | |
1148 | ||
1149 | setdot(); | |
1150 | nonzero(); | |
1151 | if ((adt = address())==0) | |
1152 | error(Q); | |
1153 | newline(); | |
1154 | if (cflag) { | |
1155 | int *ozero, delta; | |
1156 | ad1 = dol; | |
1157 | ozero = zero; | |
1158 | append(getcopy, ad1++); | |
1159 | ad2 = dol; | |
1160 | delta = zero - ozero; | |
1161 | ad1 += delta; | |
1162 | adt += delta; | |
1163 | } else { | |
1164 | ad2 = addr2; | |
1165 | for (ad1 = addr1; ad1 <= ad2;) | |
1166 | *ad1++ &= ~01; | |
1167 | ad1 = addr1; | |
1168 | } | |
1169 | ad2++; | |
1170 | if (adt<ad1) { | |
1171 | dot = adt + (ad2-ad1); | |
1172 | if ((++adt)==ad1) | |
1173 | return; | |
1174 | reverse(adt, ad1); | |
1175 | reverse(ad1, ad2); | |
1176 | reverse(adt, ad2); | |
1177 | } else if (adt >= ad2) { | |
1178 | dot = adt++; | |
1179 | reverse(ad1, ad2); | |
1180 | reverse(ad2, adt); | |
1181 | reverse(ad1, adt); | |
1182 | } else | |
1183 | error(Q); | |
1184 | fchange = 1; | |
1185 | } | |
1186 | ||
1187 | reverse(a1, a2) | |
1188 | register int *a1, *a2; | |
1189 | { | |
1190 | register int t; | |
1191 | ||
1192 | for (;;) { | |
1193 | t = *--a2; | |
1194 | if (a2 <= a1) | |
1195 | return; | |
1196 | *a2 = *a1; | |
1197 | *a1++ = t; | |
1198 | } | |
1199 | } | |
1200 | ||
1201 | getcopy() | |
1202 | { | |
1203 | if (addr1 > addr2) | |
1204 | return(EOF); | |
1205 | getline(*addr1++); | |
1206 | return(0); | |
1207 | } | |
1208 | ||
1209 | compile(aeof) | |
1210 | { | |
1211 | register eof, c; | |
1212 | register char *ep; | |
1213 | char *lastep; | |
1214 | char bracket[NBRA], *bracketp; | |
1215 | int cclcnt; | |
1216 | ||
1217 | ep = expbuf; | |
1218 | eof = aeof; | |
1219 | bracketp = bracket; | |
1220 | if ((c = getchr()) == eof) { | |
1221 | if (*ep==0) | |
1222 | error(Q); | |
1223 | return; | |
1224 | } | |
1225 | circfl = 0; | |
1226 | nbra = 0; | |
1227 | if (c=='^') { | |
1228 | c = getchr(); | |
1229 | circfl++; | |
1230 | } | |
1231 | peekc = c; | |
1232 | lastep = 0; | |
1233 | for (;;) { | |
1234 | if (ep >= &expbuf[ESIZE]) | |
1235 | goto cerror; | |
1236 | c = getchr(); | |
1237 | if (c==eof) { | |
1238 | if (bracketp != bracket) | |
1239 | goto cerror; | |
1240 | *ep++ = CEOF; | |
1241 | return; | |
1242 | } | |
1243 | if (c!='*') | |
1244 | lastep = ep; | |
1245 | switch (c) { | |
1246 | ||
1247 | case '\\': | |
1248 | if ((c = getchr())=='(') { | |
1249 | if (nbra >= NBRA) | |
1250 | goto cerror; | |
1251 | *bracketp++ = nbra; | |
1252 | *ep++ = CBRA; | |
1253 | *ep++ = nbra++; | |
1254 | continue; | |
1255 | } | |
1256 | if (c == ')') { | |
1257 | if (bracketp <= bracket) | |
1258 | goto cerror; | |
1259 | *ep++ = CKET; | |
1260 | *ep++ = *--bracketp; | |
1261 | continue; | |
1262 | } | |
1263 | if (c>='1' && c<'1'+NBRA) { | |
1264 | *ep++ = CBACK; | |
1265 | *ep++ = c-'1'; | |
1266 | continue; | |
1267 | } | |
1268 | *ep++ = CCHR; | |
1269 | if (c=='\n') | |
1270 | goto cerror; | |
1271 | *ep++ = c; | |
1272 | continue; | |
1273 | ||
1274 | case '.': | |
1275 | *ep++ = CDOT; | |
1276 | continue; | |
1277 | ||
1278 | case '\n': | |
1279 | goto cerror; | |
1280 | ||
1281 | case '*': | |
1282 | if (lastep==0 || *lastep==CBRA || *lastep==CKET) | |
1283 | goto defchar; | |
1284 | *lastep |= STAR; | |
1285 | continue; | |
1286 | ||
1287 | case '$': | |
1288 | if ((peekc=getchr()) != eof) | |
1289 | goto defchar; | |
1290 | *ep++ = CDOL; | |
1291 | continue; | |
1292 | ||
1293 | case '[': | |
1294 | *ep++ = CCL; | |
1295 | *ep++ = 0; | |
1296 | cclcnt = 1; | |
1297 | if ((c=getchr()) == '^') { | |
1298 | c = getchr(); | |
1299 | ep[-2] = NCCL; | |
1300 | } | |
1301 | do { | |
1302 | if (c=='\n') | |
1303 | goto cerror; | |
1304 | if (c=='-' && ep[-1]!=0) { | |
1305 | if ((c=getchr())==']') { | |
1306 | *ep++ = '-'; | |
1307 | cclcnt++; | |
1308 | break; | |
1309 | } | |
1310 | while (ep[-1]<c) { | |
1311 | *ep = ep[-1]+1; | |
1312 | ep++; | |
1313 | cclcnt++; | |
1314 | if (ep>=&expbuf[ESIZE]) | |
1315 | goto cerror; | |
1316 | } | |
1317 | } | |
1318 | *ep++ = c; | |
1319 | cclcnt++; | |
1320 | if (ep >= &expbuf[ESIZE]) | |
1321 | goto cerror; | |
1322 | } while ((c = getchr()) != ']'); | |
1323 | lastep[1] = cclcnt; | |
1324 | continue; | |
1325 | ||
1326 | defchar: | |
1327 | default: | |
1328 | *ep++ = CCHR; | |
1329 | *ep++ = c; | |
1330 | } | |
1331 | } | |
1332 | cerror: | |
1333 | expbuf[0] = 0; | |
1334 | nbra = 0; | |
1335 | error(Q); | |
1336 | } | |
1337 | ||
1338 | execute(gf, addr) | |
1339 | int *addr; | |
1340 | { | |
1341 | register char *p1, *p2, c; | |
1342 | ||
1343 | for (c=0; c<NBRA; c++) { | |
1344 | braslist[c] = 0; | |
1345 | braelist[c] = 0; | |
1346 | } | |
1347 | if (gf) { | |
1348 | if (circfl) | |
1349 | return(0); | |
1350 | p1 = linebuf; | |
1351 | p2 = genbuf; | |
1352 | while (*p1++ = *p2++) | |
1353 | ; | |
1354 | locs = p1 = loc2; | |
1355 | } else { | |
1356 | if (addr==zero) | |
1357 | return(0); | |
1358 | p1 = getline(*addr); | |
1359 | locs = 0; | |
1360 | } | |
1361 | p2 = expbuf; | |
1362 | if (circfl) { | |
1363 | loc1 = p1; | |
1364 | return(advance(p1, p2)); | |
1365 | } | |
1366 | /* fast check for first character */ | |
1367 | if (*p2==CCHR) { | |
1368 | c = p2[1]; | |
1369 | do { | |
1370 | if (*p1!=c) | |
1371 | continue; | |
1372 | if (advance(p1, p2)) { | |
1373 | loc1 = p1; | |
1374 | return(1); | |
1375 | } | |
1376 | } while (*p1++); | |
1377 | return(0); | |
1378 | } | |
1379 | /* regular algorithm */ | |
1380 | do { | |
1381 | if (advance(p1, p2)) { | |
1382 | loc1 = p1; | |
1383 | return(1); | |
1384 | } | |
1385 | } while (*p1++); | |
1386 | return(0); | |
1387 | } | |
1388 | ||
1389 | advance(lp, ep) | |
1390 | register char *ep, *lp; | |
1391 | { | |
1392 | register char *curlp; | |
1393 | int i; | |
1394 | ||
1395 | for (;;) switch (*ep++) { | |
1396 | ||
1397 | case CCHR: | |
1398 | if (*ep++ == *lp++) | |
1399 | continue; | |
1400 | return(0); | |
1401 | ||
1402 | case CDOT: | |
1403 | if (*lp++) | |
1404 | continue; | |
1405 | return(0); | |
1406 | ||
1407 | case CDOL: | |
1408 | if (*lp==0) | |
1409 | continue; | |
1410 | return(0); | |
1411 | ||
1412 | case CEOF: | |
1413 | loc2 = lp; | |
1414 | return(1); | |
1415 | ||
1416 | case CCL: | |
1417 | if (cclass(ep, *lp++, 1)) { | |
1418 | ep += *ep; | |
1419 | continue; | |
1420 | } | |
1421 | return(0); | |
1422 | ||
1423 | case NCCL: | |
1424 | if (cclass(ep, *lp++, 0)) { | |
1425 | ep += *ep; | |
1426 | continue; | |
1427 | } | |
1428 | return(0); | |
1429 | ||
1430 | case CBRA: | |
1431 | braslist[*ep++] = lp; | |
1432 | continue; | |
1433 | ||
1434 | case CKET: | |
1435 | braelist[*ep++] = lp; | |
1436 | continue; | |
1437 | ||
1438 | case CBACK: | |
1439 | if (braelist[i = *ep++]==0) | |
1440 | error(Q); | |
1441 | if (backref(i, lp)) { | |
1442 | lp += braelist[i] - braslist[i]; | |
1443 | continue; | |
1444 | } | |
1445 | return(0); | |
1446 | ||
1447 | case CBACK|STAR: | |
1448 | if (braelist[i = *ep++] == 0) | |
1449 | error(Q); | |
1450 | curlp = lp; | |
1451 | while (backref(i, lp)) | |
1452 | lp += braelist[i] - braslist[i]; | |
1453 | while (lp >= curlp) { | |
1454 | if (advance(lp, ep)) | |
1455 | return(1); | |
1456 | lp -= braelist[i] - braslist[i]; | |
1457 | } | |
1458 | continue; | |
1459 | ||
1460 | case CDOT|STAR: | |
1461 | curlp = lp; | |
1462 | while (*lp++) | |
1463 | ; | |
1464 | goto star; | |
1465 | ||
1466 | case CCHR|STAR: | |
1467 | curlp = lp; | |
1468 | while (*lp++ == *ep) | |
1469 | ; | |
1470 | ep++; | |
1471 | goto star; | |
1472 | ||
1473 | case CCL|STAR: | |
1474 | case NCCL|STAR: | |
1475 | curlp = lp; | |
1476 | while (cclass(ep, *lp++, ep[-1]==(CCL|STAR))) | |
1477 | ; | |
1478 | ep += *ep; | |
1479 | goto star; | |
1480 | ||
1481 | star: | |
1482 | do { | |
1483 | lp--; | |
1484 | if (lp==locs) | |
1485 | break; | |
1486 | if (advance(lp, ep)) | |
1487 | return(1); | |
1488 | } while (lp > curlp); | |
1489 | return(0); | |
1490 | ||
1491 | default: | |
1492 | error(Q); | |
1493 | } | |
1494 | } | |
1495 | ||
1496 | backref(i, lp) | |
1497 | register i; | |
1498 | register char *lp; | |
1499 | { | |
1500 | register char *bp; | |
1501 | ||
1502 | bp = braslist[i]; | |
1503 | while (*bp++ == *lp++) | |
1504 | if (bp >= braelist[i]) | |
1505 | return(1); | |
1506 | return(0); | |
1507 | } | |
1508 | ||
1509 | cclass(set, c, af) | |
1510 | register char *set, c; | |
1511 | { | |
1512 | register n; | |
1513 | ||
1514 | if (c==0) | |
1515 | return(0); | |
1516 | n = *set++; | |
1517 | while (--n) | |
1518 | if (*set++ == c) | |
1519 | return(af); | |
1520 | return(!af); | |
1521 | } | |
1522 | ||
1523 | putd() | |
1524 | { | |
1525 | register r; | |
1526 | ||
1527 | r = count%10; | |
1528 | count /= 10; | |
1529 | if (count) | |
1530 | putd(); | |
1531 | putchr(r + '0'); | |
1532 | } | |
1533 | ||
1534 | puts(sp) | |
1535 | register char *sp; | |
1536 | { | |
1537 | col = 0; | |
1538 | while (*sp) | |
1539 | putchr(*sp++); | |
1540 | putchr('\n'); | |
1541 | } | |
1542 | ||
1543 | char line[70]; | |
1544 | char *linp = line; | |
1545 | ||
1546 | putchr(ac) | |
1547 | { | |
1548 | register char *lp; | |
1549 | register c; | |
1550 | ||
1551 | lp = linp; | |
1552 | c = ac; | |
1553 | if (listf) { | |
1554 | col++; | |
1555 | if (col >= 72) { | |
1556 | col = 0; | |
1557 | *lp++ = '\\'; | |
1558 | *lp++ = '\n'; | |
1559 | } | |
1560 | if (c=='\t') { | |
1561 | c = '>'; | |
1562 | goto esc; | |
1563 | } | |
1564 | if (c=='\b') { | |
1565 | c = '<'; | |
1566 | esc: | |
1567 | *lp++ = '-'; | |
1568 | *lp++ = '\b'; | |
1569 | *lp++ = c; | |
1570 | goto out; | |
1571 | } | |
1572 | if (c<' ' && c!= '\n') { | |
1573 | *lp++ = '\\'; | |
1574 | *lp++ = (c>>3)+'0'; | |
1575 | *lp++ = (c&07)+'0'; | |
1576 | col += 2; | |
1577 | goto out; | |
1578 | } | |
1579 | } | |
1580 | *lp++ = c; | |
1581 | out: | |
1582 | if(c == '\n' || lp >= &line[64]) { | |
1583 | linp = line; | |
1584 | write(1, line, lp-line); | |
1585 | return; | |
1586 | } | |
1587 | linp = lp; | |
1588 | } | |
62793f1c | 1589 |