Commit | Line | Data |
---|---|---|
b79f4fa9 DF |
1 | /* |
2 | * Copyright (c) 1980 Regents of the University of California. | |
094e80ed | 3 | * All rights reserved. The Berkeley Software License Agreement |
b79f4fa9 DF |
4 | * specifies the terms and conditions for redistribution. |
5 | */ | |
6 | ||
35371dec | 7 | #ifndef lint |
291a8333 | 8 | static char *sccsid = "@(#)glob.c 5.4 (Berkeley) %G%"; |
094e80ed | 9 | #endif |
9363f20d | 10 | |
b6e604fd | 11 | #include "sh.h" |
3ced312f | 12 | #include <sys/dir.h> |
b6e604fd BJ |
13 | |
14 | /* | |
15 | * C Shell | |
16 | */ | |
17 | ||
18 | int globcnt; | |
19 | ||
b6e604fd BJ |
20 | char *gpath, *gpathp, *lastgpathp; |
21 | int globbed; | |
22 | bool noglob; | |
23 | bool nonomatch; | |
24 | char *entp; | |
25 | char **sortbas; | |
291a8333 | 26 | int sortscmp(); |
6a422336 JL |
27 | |
28 | #define sort() qsort((char *)sortbas, &gargv[gargc] - sortbas, \ | |
291a8333 | 29 | sizeof(*sortbas), sortscmp), sortbas = &gargv[gargc] |
6a422336 | 30 | |
b6e604fd BJ |
31 | |
32 | char ** | |
33 | glob(v) | |
34 | register char **v; | |
35 | { | |
36 | char agpath[BUFSIZ]; | |
37 | char *agargv[GAVSIZ]; | |
38 | ||
39 | gpath = agpath; gpathp = gpath; *gpathp = 0; | |
40 | lastgpathp = &gpath[sizeof agpath - 2]; | |
41 | ginit(agargv); globcnt = 0; | |
42 | #ifdef GDEBUG | |
43 | printf("glob entered: "); blkpr(v); printf("\n"); | |
44 | #endif | |
45 | noglob = adrof("noglob") != 0; | |
46 | nonomatch = adrof("nonomatch") != 0; | |
47 | globcnt = noglob | nonomatch; | |
48 | while (*v) | |
49 | collect(*v++); | |
50 | #ifdef GDEBUG | |
51 | printf("glob done, globcnt=%d, gflag=%d: ", globcnt, gflag); blkpr(gargv); printf("\n"); | |
52 | #endif | |
53 | if (globcnt == 0 && (gflag&1)) { | |
54 | blkfree(gargv), gargv = 0; | |
55 | return (0); | |
56 | } else | |
57 | return (gargv = copyblk(gargv)); | |
58 | } | |
59 | ||
60 | ginit(agargv) | |
61 | char **agargv; | |
62 | { | |
63 | ||
64 | agargv[0] = 0; gargv = agargv; sortbas = agargv; gargc = 0; | |
65 | gnleft = NCARGS - 4; | |
66 | } | |
67 | ||
68 | collect(as) | |
69 | register char *as; | |
70 | { | |
71 | register int i; | |
72 | ||
73 | if (any('`', as)) { | |
74 | #ifdef GDEBUG | |
75 | printf("doing backp of %s\n", as); | |
76 | #endif | |
35371dec | 77 | (void) dobackp(as, 0); |
b6e604fd BJ |
78 | #ifdef GDEBUG |
79 | printf("backp done, acollect'ing\n"); | |
80 | #endif | |
81 | for (i = 0; i < pargc; i++) | |
3ced312f | 82 | if (noglob) { |
b6e604fd | 83 | Gcat(pargv[i], ""); |
3ced312f SL |
84 | sortbas = &gargv[gargc]; |
85 | } else | |
b6e604fd BJ |
86 | acollect(pargv[i]); |
87 | if (pargv) | |
88 | blkfree(pargv), pargv = 0; | |
89 | #ifdef GDEBUG | |
90 | printf("acollect done\n"); | |
91 | #endif | |
401149be | 92 | } else if (noglob || eq(as, "{") || eq(as, "{}")) { |
b6e604fd | 93 | Gcat(as, ""); |
401149be BJ |
94 | sort(); |
95 | } else | |
b6e604fd BJ |
96 | acollect(as); |
97 | } | |
98 | ||
99 | acollect(as) | |
100 | register char *as; | |
101 | { | |
102 | register int ogargc = gargc; | |
103 | ||
104 | gpathp = gpath; *gpathp = 0; globbed = 0; | |
105 | expand(as); | |
106 | if (gargc == ogargc) { | |
107 | if (nonomatch) { | |
108 | Gcat(as, ""); | |
109 | sort(); | |
110 | } | |
111 | } else | |
112 | sort(); | |
113 | } | |
114 | ||
291a8333 JL |
115 | /* |
116 | * String compare for qsort. Also used by filec code in sh.file.c. | |
117 | */ | |
118 | sortscmp(a1, a2) | |
6a422336 | 119 | char **a1, **a2; |
b6e604fd | 120 | { |
6a422336 JL |
121 | |
122 | return (strcmp(*a1, *a2)); | |
b6e604fd BJ |
123 | } |
124 | ||
125 | expand(as) | |
126 | char *as; | |
127 | { | |
128 | register char *cs; | |
129 | register char *sgpathp, *oldcs; | |
130 | struct stat stb; | |
131 | ||
132 | sgpathp = gpathp; | |
133 | cs = as; | |
134 | if (*cs == '~' && gpathp == gpath) { | |
135 | addpath('~'); | |
136 | for (cs++; letter(*cs) || digit(*cs) || *cs == '-';) | |
137 | addpath(*cs++); | |
138 | if (!*cs || *cs == '/') { | |
139 | if (gpathp != gpath + 1) { | |
140 | *gpathp = 0; | |
141 | if (gethdir(gpath + 1)) | |
142 | error("Unknown user: %s", gpath + 1); | |
35371dec | 143 | (void) strcpy(gpath, gpath + 1); |
b6e604fd | 144 | } else |
35371dec | 145 | (void) strcpy(gpath, value("home")); |
b6e604fd BJ |
146 | gpathp = strend(gpath); |
147 | } | |
148 | } | |
6a422336 | 149 | while (!isglob(*cs)) { |
b6e604fd BJ |
150 | if (*cs == 0) { |
151 | if (!globbed) | |
152 | Gcat(gpath, ""); | |
153 | else if (stat(gpath, &stb) >= 0) { | |
154 | Gcat(gpath, ""); | |
155 | globcnt++; | |
156 | } | |
157 | goto endit; | |
158 | } | |
159 | addpath(*cs++); | |
160 | } | |
161 | oldcs = cs; | |
162 | while (cs > as && *cs != '/') | |
163 | cs--, gpathp--; | |
164 | if (*cs == '/') | |
165 | cs++, gpathp++; | |
166 | *gpathp = 0; | |
167 | if (*oldcs == '{') { | |
35371dec | 168 | (void) execbrc(cs, NOSTR); |
b6e604fd BJ |
169 | return; |
170 | } | |
171 | matchdir(cs); | |
172 | endit: | |
173 | gpathp = sgpathp; | |
174 | *gpathp = 0; | |
175 | } | |
176 | ||
177 | matchdir(pattern) | |
178 | char *pattern; | |
179 | { | |
180 | struct stat stb; | |
9363f20d | 181 | register struct direct *dp; |
35371dec | 182 | register DIR *dirp; |
b6e604fd | 183 | |
9363f20d KM |
184 | dirp = opendir(gpath); |
185 | if (dirp == NULL) { | |
b6e604fd BJ |
186 | if (globbed) |
187 | return; | |
9363f20d | 188 | goto patherr2; |
b6e604fd | 189 | } |
9363f20d KM |
190 | if (fstat(dirp->dd_fd, &stb) < 0) |
191 | goto patherr1; | |
b6e604fd BJ |
192 | if (!isdir(stb)) { |
193 | errno = ENOTDIR; | |
9363f20d | 194 | goto patherr1; |
b6e604fd | 195 | } |
9363f20d KM |
196 | while ((dp = readdir(dirp)) != NULL) { |
197 | if (dp->d_ino == 0) | |
198 | continue; | |
199 | if (match(dp->d_name, pattern)) { | |
200 | Gcat(gpath, dp->d_name); | |
201 | globcnt++; | |
b6e604fd BJ |
202 | } |
203 | } | |
9363f20d | 204 | closedir(dirp); |
b6e604fd BJ |
205 | return; |
206 | ||
9363f20d KM |
207 | patherr1: |
208 | closedir(dirp); | |
209 | patherr2: | |
b6e604fd BJ |
210 | Perror(gpath); |
211 | } | |
212 | ||
b6e604fd BJ |
213 | execbrc(p, s) |
214 | char *p, *s; | |
215 | { | |
216 | char restbuf[BUFSIZ + 2]; | |
217 | register char *pe, *pm, *pl; | |
218 | int brclev = 0; | |
219 | char *lm, savec, *sgpathp; | |
220 | ||
221 | for (lm = restbuf; *p != '{'; *lm++ = *p++) | |
222 | continue; | |
223 | for (pe = ++p; *pe; pe++) | |
224 | switch (*pe) { | |
225 | ||
226 | case '{': | |
227 | brclev++; | |
228 | continue; | |
229 | ||
230 | case '}': | |
231 | if (brclev == 0) | |
232 | goto pend; | |
233 | brclev--; | |
234 | continue; | |
235 | ||
236 | case '[': | |
237 | for (pe++; *pe && *pe != ']'; pe++) | |
238 | continue; | |
239 | if (!*pe) | |
240 | error("Missing ]"); | |
241 | continue; | |
242 | } | |
243 | pend: | |
244 | if (brclev || !*pe) | |
245 | error("Missing }"); | |
246 | for (pl = pm = p; pm <= pe; pm++) | |
247 | switch (*pm & (QUOTE|TRIM)) { | |
248 | ||
249 | case '{': | |
250 | brclev++; | |
251 | continue; | |
252 | ||
253 | case '}': | |
254 | if (brclev) { | |
255 | brclev--; | |
256 | continue; | |
257 | } | |
258 | goto doit; | |
259 | ||
260 | case ','|QUOTE: | |
261 | case ',': | |
262 | if (brclev) | |
263 | continue; | |
264 | doit: | |
265 | savec = *pm; | |
266 | *pm = 0; | |
35371dec EW |
267 | (void) strcpy(lm, pl); |
268 | (void) strcat(restbuf, pe + 1); | |
b6e604fd BJ |
269 | *pm = savec; |
270 | if (s == 0) { | |
271 | sgpathp = gpathp; | |
272 | expand(restbuf); | |
273 | gpathp = sgpathp; | |
274 | *gpathp = 0; | |
275 | } else if (amatch(s, restbuf)) | |
276 | return (1); | |
277 | sort(); | |
278 | pl = pm + 1; | |
279 | continue; | |
280 | ||
281 | case '[': | |
282 | for (pm++; *pm && *pm != ']'; pm++) | |
283 | continue; | |
284 | if (!*pm) | |
285 | error("Missing ]"); | |
286 | continue; | |
287 | } | |
288 | return (0); | |
289 | } | |
290 | ||
291 | match(s, p) | |
292 | char *s, *p; | |
293 | { | |
294 | register int c; | |
295 | register char *sentp; | |
296 | char sglobbed = globbed; | |
297 | ||
298 | if (*s == '.' && *p != '.') | |
299 | return (0); | |
300 | sentp = entp; | |
301 | entp = s; | |
302 | c = amatch(s, p); | |
303 | entp = sentp; | |
304 | globbed = sglobbed; | |
305 | return (c); | |
306 | } | |
307 | ||
308 | amatch(s, p) | |
309 | register char *s, *p; | |
310 | { | |
311 | register int scc; | |
312 | int ok, lc; | |
313 | char *sgpathp; | |
314 | struct stat stb; | |
315 | int c, cc; | |
316 | ||
317 | globbed = 1; | |
318 | for (;;) { | |
319 | scc = *s++ & TRIM; | |
320 | switch (c = *p++) { | |
321 | ||
322 | case '{': | |
323 | return (execbrc(p - 1, s - 1)); | |
324 | ||
325 | case '[': | |
326 | ok = 0; | |
327 | lc = 077777; | |
328 | while (cc = *p++) { | |
329 | if (cc == ']') { | |
330 | if (ok) | |
331 | break; | |
332 | return (0); | |
333 | } | |
334 | if (cc == '-') { | |
335 | if (lc <= scc && scc <= *p++) | |
336 | ok++; | |
337 | } else | |
338 | if (scc == (lc = cc)) | |
339 | ok++; | |
340 | } | |
341 | if (cc == 0) | |
342 | error("Missing ]"); | |
343 | continue; | |
344 | ||
345 | case '*': | |
346 | if (!*p) | |
347 | return (1); | |
348 | if (*p == '/') { | |
349 | p++; | |
350 | goto slash; | |
351 | } | |
352 | for (s--; *s; s++) | |
353 | if (amatch(s, p)) | |
354 | return (1); | |
355 | return (0); | |
356 | ||
357 | case 0: | |
358 | return (scc == 0); | |
359 | ||
360 | default: | |
d33af40e | 361 | if ((c & TRIM) != scc) |
b6e604fd BJ |
362 | return (0); |
363 | continue; | |
364 | ||
365 | case '?': | |
366 | if (scc == 0) | |
367 | return (0); | |
368 | continue; | |
369 | ||
370 | case '/': | |
371 | if (scc) | |
372 | return (0); | |
373 | slash: | |
374 | s = entp; | |
375 | sgpathp = gpathp; | |
376 | while (*s) | |
377 | addpath(*s++); | |
378 | addpath('/'); | |
379 | if (stat(gpath, &stb) == 0 && isdir(stb)) | |
380 | if (*p == 0) { | |
381 | Gcat(gpath, ""); | |
382 | globcnt++; | |
383 | } else | |
384 | expand(p); | |
385 | gpathp = sgpathp; | |
386 | *gpathp = 0; | |
387 | return (0); | |
388 | } | |
389 | } | |
390 | } | |
391 | ||
392 | Gmatch(s, p) | |
393 | register char *s, *p; | |
394 | { | |
395 | register int scc; | |
396 | int ok, lc; | |
397 | int c, cc; | |
398 | ||
399 | for (;;) { | |
400 | scc = *s++ & TRIM; | |
401 | switch (c = *p++) { | |
402 | ||
403 | case '[': | |
404 | ok = 0; | |
405 | lc = 077777; | |
406 | while (cc = *p++) { | |
407 | if (cc == ']') { | |
408 | if (ok) | |
409 | break; | |
410 | return (0); | |
411 | } | |
412 | if (cc == '-') { | |
413 | if (lc <= scc && scc <= *p++) | |
414 | ok++; | |
415 | } else | |
416 | if (scc == (lc = cc)) | |
417 | ok++; | |
418 | } | |
419 | if (cc == 0) | |
420 | bferr("Missing ]"); | |
421 | continue; | |
422 | ||
423 | case '*': | |
424 | if (!*p) | |
425 | return (1); | |
426 | for (s--; *s; s++) | |
427 | if (Gmatch(s, p)) | |
428 | return (1); | |
429 | return (0); | |
430 | ||
431 | case 0: | |
432 | return (scc == 0); | |
433 | ||
434 | default: | |
435 | if ((c & TRIM) != scc) | |
436 | return (0); | |
437 | continue; | |
438 | ||
439 | case '?': | |
440 | if (scc == 0) | |
441 | return (0); | |
442 | continue; | |
443 | ||
444 | } | |
445 | } | |
446 | } | |
447 | ||
448 | Gcat(s1, s2) | |
35371dec | 449 | char *s1, *s2; |
b6e604fd | 450 | { |
35371dec EW |
451 | register char *p, *q; |
452 | int n; | |
453 | ||
454 | for (p = s1; *p++;) | |
455 | ; | |
456 | for (q = s2; *q++;) | |
457 | ; | |
458 | gnleft -= (n = (p - s1) + (q - s2) - 1); | |
b6e604fd BJ |
459 | if (gnleft <= 0 || ++gargc >= GAVSIZ) |
460 | error("Arguments too long"); | |
461 | gargv[gargc] = 0; | |
35371dec EW |
462 | p = gargv[gargc - 1] = xalloc((unsigned)n); |
463 | for (q = s1; *p++ = *q++;) | |
464 | ; | |
465 | for (p--, q = s2; *p++ = *q++;) | |
466 | ; | |
b6e604fd BJ |
467 | } |
468 | ||
469 | addpath(c) | |
470 | char c; | |
471 | { | |
472 | ||
473 | if (gpathp >= lastgpathp) | |
474 | error("Pathname too long"); | |
6795aa44 | 475 | *gpathp++ = c & TRIM; |
b6e604fd BJ |
476 | *gpathp = 0; |
477 | } | |
478 | ||
479 | rscan(t, f) | |
480 | register char **t; | |
481 | int (*f)(); | |
482 | { | |
35371dec | 483 | register char *p; |
b6e604fd | 484 | |
35371dec EW |
485 | while (p = *t++) |
486 | while (*p) | |
487 | (*f)(*p++); | |
b6e604fd BJ |
488 | } |
489 | ||
35371dec | 490 | trim(t) |
b6e604fd | 491 | register char **t; |
b6e604fd | 492 | { |
35371dec | 493 | register char *p; |
b6e604fd BJ |
494 | |
495 | while (p = *t++) | |
700d2436 JB |
496 | while (*p) |
497 | *p++ &= TRIM; | |
b6e604fd BJ |
498 | } |
499 | ||
35371dec EW |
500 | tglob(t) |
501 | register char **t; | |
b6e604fd | 502 | { |
35371dec | 503 | register char *p, c; |
b6e604fd | 504 | |
35371dec EW |
505 | while (p = *t++) { |
506 | if (*p == '~') | |
507 | gflag |= 2; | |
508 | else if (*p == '{' && (p[1] == '\0' || p[1] == '}' && p[2] == '\0')) | |
509 | continue; | |
510 | while (c = *p++) | |
6a422336 | 511 | if (isglob(c)) |
35371dec EW |
512 | gflag |= c == '{' ? 2 : 1; |
513 | } | |
b6e604fd BJ |
514 | } |
515 | ||
516 | char * | |
517 | globone(str) | |
518 | register char *str; | |
519 | { | |
520 | char *gv[2]; | |
521 | register char **gvp; | |
522 | register char *cp; | |
523 | ||
524 | gv[0] = str; | |
525 | gv[1] = 0; | |
526 | gflag = 0; | |
35371dec | 527 | tglob(gv); |
b6e604fd BJ |
528 | if (gflag) { |
529 | gvp = glob(gv); | |
530 | if (gvp == 0) { | |
531 | setname(str); | |
532 | bferr("No match"); | |
533 | } | |
534 | cp = *gvp++; | |
535 | if (cp == 0) | |
536 | cp = ""; | |
537 | else if (*gvp) { | |
538 | setname(str); | |
539 | bferr("Ambiguous"); | |
540 | } else | |
541 | cp = strip(cp); | |
542 | /* | |
543 | if (cp == 0 || *gvp) { | |
544 | setname(str); | |
545 | bferr(cp ? "Ambiguous" : "No output"); | |
546 | } | |
547 | */ | |
548 | xfree((char *)gargv); gargv = 0; | |
549 | } else { | |
35371dec | 550 | trim(gv); |
b6e604fd BJ |
551 | cp = savestr(gv[0]); |
552 | } | |
553 | return (cp); | |
554 | } | |
555 | ||
556 | /* | |
557 | * Command substitute cp. If literal, then this is | |
558 | * a substitution from a << redirection, and so we should | |
559 | * not crunch blanks and tabs, separating words only at newlines. | |
560 | */ | |
561 | char ** | |
562 | dobackp(cp, literal) | |
563 | char *cp; | |
564 | bool literal; | |
565 | { | |
566 | register char *lp, *rp; | |
567 | char *ep; | |
568 | char word[BUFSIZ]; | |
569 | char *apargv[GAVSIZ + 2]; | |
570 | ||
571 | if (pargv) { | |
572 | abort(); | |
573 | blkfree(pargv); | |
574 | } | |
575 | pargv = apargv; | |
576 | pargv[0] = NOSTR; | |
577 | pargcp = pargs = word; | |
578 | pargc = 0; | |
579 | pnleft = BUFSIZ - 4; | |
580 | for (;;) { | |
581 | for (lp = cp; *lp != '`'; lp++) { | |
582 | if (*lp == 0) { | |
583 | if (pargcp != pargs) | |
584 | pword(); | |
585 | #ifdef GDEBUG | |
586 | printf("leaving dobackp\n"); | |
587 | #endif | |
588 | return (pargv = copyblk(pargv)); | |
589 | } | |
590 | psave(*lp); | |
591 | } | |
592 | lp++; | |
593 | for (rp = lp; *rp && *rp != '`'; rp++) | |
594 | if (*rp == '\\') { | |
595 | rp++; | |
596 | if (!*rp) | |
597 | goto oops; | |
598 | } | |
599 | if (!*rp) | |
600 | oops: | |
601 | error("Unmatched `"); | |
602 | ep = savestr(lp); | |
603 | ep[rp - lp] = 0; | |
604 | backeval(ep, literal); | |
605 | #ifdef GDEBUG | |
606 | printf("back from backeval\n"); | |
607 | #endif | |
608 | cp = rp + 1; | |
609 | } | |
610 | } | |
611 | ||
612 | backeval(cp, literal) | |
613 | char *cp; | |
614 | bool literal; | |
615 | { | |
616 | int pvec[2]; | |
617 | int quoted = (literal || (cp[0] & QUOTE)) ? QUOTE : 0; | |
618 | char ibuf[BUFSIZ]; | |
619 | register int icnt = 0, c; | |
620 | register char *ip; | |
621 | bool hadnl = 0; | |
622 | char *fakecom[2]; | |
623 | struct command faket; | |
624 | ||
625 | faket.t_dtyp = TCOM; | |
626 | faket.t_dflg = 0; | |
627 | faket.t_dlef = 0; | |
628 | faket.t_drit = 0; | |
629 | faket.t_dspr = 0; | |
630 | faket.t_dcom = fakecom; | |
631 | fakecom[0] = "` ... `"; | |
632 | fakecom[1] = 0; | |
633 | /* | |
634 | * We do the psave job to temporarily change the current job | |
635 | * so that the following fork is considered a separate job. | |
636 | * This is so that when backquotes are used in a | |
637 | * builtin function that calls glob the "current job" is not corrupted. | |
638 | * We only need one level of pushed jobs as long as we are sure to | |
639 | * fork here. | |
640 | */ | |
641 | psavejob(); | |
642 | /* | |
643 | * It would be nicer if we could integrate this redirection more | |
644 | * with the routines in sh.sem.c by doing a fake execute on a builtin | |
645 | * function that was piped out. | |
646 | */ | |
647 | mypipe(pvec); | |
648 | if (pfork(&faket, -1) == 0) { | |
649 | struct wordent paraml; | |
650 | struct command *t; | |
651 | ||
35371dec EW |
652 | (void) close(pvec[0]); |
653 | (void) dmove(pvec[1], 1); | |
654 | (void) dmove(SHDIAG, 2); | |
b6e604fd BJ |
655 | initdesc(); |
656 | arginp = cp; | |
657 | while (*cp) | |
658 | *cp++ &= TRIM; | |
35371dec | 659 | (void) lex(¶ml); |
b6e604fd BJ |
660 | if (err) |
661 | error(err); | |
662 | alias(¶ml); | |
663 | t = syntax(paraml.next, ¶ml, 0); | |
664 | if (err) | |
665 | error(err); | |
666 | if (t) | |
667 | t->t_dflg |= FPAR; | |
35371dec EW |
668 | (void) signal(SIGTSTP, SIG_IGN); |
669 | (void) signal(SIGTTIN, SIG_IGN); | |
670 | (void) signal(SIGTTOU, SIG_IGN); | |
b6e604fd BJ |
671 | execute(t, -1); |
672 | exitstat(); | |
673 | } | |
674 | xfree(cp); | |
35371dec | 675 | (void) close(pvec[1]); |
b6e604fd BJ |
676 | do { |
677 | int cnt = 0; | |
678 | for (;;) { | |
679 | if (icnt == 0) { | |
680 | ip = ibuf; | |
681 | icnt = read(pvec[0], ip, BUFSIZ); | |
682 | if (icnt <= 0) { | |
683 | c = -1; | |
684 | break; | |
685 | } | |
686 | } | |
687 | if (hadnl) | |
688 | break; | |
689 | --icnt; | |
690 | c = (*ip++ & TRIM); | |
691 | if (c == 0) | |
692 | break; | |
693 | if (c == '\n') { | |
694 | /* | |
695 | * Continue around the loop one | |
696 | * more time, so that we can eat | |
697 | * the last newline without terminating | |
698 | * this word. | |
699 | */ | |
700 | hadnl = 1; | |
701 | continue; | |
702 | } | |
703 | if (!quoted && (c == ' ' || c == '\t')) | |
704 | break; | |
705 | cnt++; | |
706 | psave(c | quoted); | |
707 | } | |
708 | /* | |
709 | * Unless at end-of-file, we will form a new word | |
710 | * here if there were characters in the word, or in | |
711 | * any case when we take text literally. If | |
712 | * we didn't make empty words here when literal was | |
713 | * set then we would lose blank lines. | |
714 | */ | |
715 | if (c != -1 && (cnt || literal)) | |
716 | pword(); | |
717 | hadnl = 0; | |
718 | } while (c >= 0); | |
719 | #ifdef GDEBUG | |
720 | printf("done in backeval, pvec: %d %d\n", pvec[0], pvec[1]); | |
721 | printf("also c = %c <%o>\n", c, c); | |
722 | #endif | |
35371dec | 723 | (void) close(pvec[0]); |
b6e604fd BJ |
724 | pwait(); |
725 | prestjob(); | |
726 | } | |
727 | ||
728 | psave(c) | |
729 | char c; | |
730 | { | |
731 | ||
732 | if (--pnleft <= 0) | |
733 | error("Word too long"); | |
734 | *pargcp++ = c; | |
735 | } | |
736 | ||
737 | pword() | |
738 | { | |
739 | ||
740 | psave(0); | |
741 | if (pargc == GAVSIZ) | |
742 | error("Too many words from ``"); | |
743 | pargv[pargc++] = savestr(pargs); | |
744 | pargv[pargc] = NOSTR; | |
745 | #ifdef GDEBUG | |
746 | printf("got word %s\n", pargv[pargc-1]); | |
747 | #endif | |
748 | pargcp = pargs; | |
749 | pnleft = BUFSIZ - 4; | |
750 | } |