1#include <u.h>
2#include <libc.h>
3#include <draw.h>
4#include <thread.h>
5#include <cursor.h>
6#include <mouse.h>
7#include <keyboard.h>
8#include <frame.h>
9#include <fcall.h>
10#include <regexp.h>
11#include <9pclient.h>
12#include <plumb.h>
13#include <libsec.h>
14#include "dat.h"
15#include "fns.h"
16
17CFid *plumbsendfid;
18CFid *plumbeditfid;
19
20Window* openfile(Text*, Expand*);
21
22int nuntitled;
23
24void
25plumbthread(void *v)
26{
27 CFid *fid;
28 Plumbmsg *m;
29 Timer *t;
30
31 USED(v);
32 threadsetname("plumbproc");
33
34 /*
35 * Loop so that if plumber is restarted, acme need not be.
36 */
37 for(;;){
38 /*
39 * Connect to plumber.
40 */
41 plumbunmount();
42 while((fid = plumbopenfid("edit", OREAD|OCEXEC)) == nil){
43 t = timerstart(2000);
44 recv(t->c, nil);
45 timerstop(t);
46 }
47 plumbeditfid = fid;
48 plumbsendfid = plumbopenfid("send", OWRITE|OCEXEC);
49
50 /*
51 * Relay messages.
52 */
53 for(;;){
54 m = plumbrecvfid(plumbeditfid);
55 if(m == nil)
56 break;
57 sendp(cplumb, m);
58 }
59
60 /*
61 * Lost connection.
62 */
63 fid = plumbsendfid;
64 plumbsendfid = nil;
65 fsclose(fid);
66
67 fid = plumbeditfid;
68 plumbeditfid = nil;
69 fsclose(fid);
70 }
71}
72
73void
74startplumbing(void)
75{
76 cplumb = chancreate(sizeof(Plumbmsg*), 0);
77 chansetname(cplumb, "cplumb");
78 threadcreate(plumbthread, nil, STACK);
79}
80
81
82void
83look3(Text *t, uint q0, uint q1, int external)
84{
85 int n, c, f, expanded;
86 Text *ct;
87 Expand e;
88 Rune *r;
89 uint p;
90 Plumbmsg *m;
91 Runestr dir;
92 char buf[32];
93
94 ct = seltext;
95 if(ct == nil)
96 seltext = t;
97 expanded = expand(t, q0, q1, &e);
98 if(!external && t->w!=nil && t->w->nopen[QWevent]>0){
99 /* send alphanumeric expansion to external client */
100 if(expanded == FALSE)
101 return;
102 f = 0;
103 if((e.u.at!=nil && t->w!=nil) || (e.nname>0 && lookfile(e.name, e.nname)!=nil))
104 f = 1; /* acme can do it without loading a file */
105 if(q0!=e.q0 || q1!=e.q1)
106 f |= 2; /* second (post-expand) message follows */
107 if(e.nname)
108 f |= 4; /* it's a file name */
109 c = 'l';
110 if(t->what == Body)
111 c = 'L';
112 n = q1-q0;
113 if(n <= EVENTSIZE){
114 r = runemalloc(n);
115 bufread(&t->file->b, q0, r, n);
116 winevent(t->w, "%c%d %d %d %d %.*S\n", c, q0, q1, f, n, n, r);
117 free(r);
118 }else
119 winevent(t->w, "%c%d %d %d 0 \n", c, q0, q1, f, n);
120 if(q0==e.q0 && q1==e.q1)
121 return;
122 if(e.nname){
123 n = e.nname;
124 if(e.a1 > e.a0)
125 n += 1+(e.a1-e.a0);
126 r = runemalloc(n);
127 runemove(r, e.name, e.nname);
128 if(e.a1 > e.a0){
129 r[e.nname] = ':';
130 bufread(&e.u.at->file->b, e.a0, r+e.nname+1, e.a1-e.a0);
131 }
132 }else{
133 n = e.q1 - e.q0;
134 r = runemalloc(n);
135 bufread(&t->file->b, e.q0, r, n);
136 }
137 f &= ~2;
138 if(n <= EVENTSIZE)
139 winevent(t->w, "%c%d %d %d %d %.*S\n", c, e.q0, e.q1, f, n, n, r);
140 else
141 winevent(t->w, "%c%d %d %d 0 \n", c, e.q0, e.q1, f, n);
142 free(r);
143 goto Return;
144 }
145 if(plumbsendfid != nil){
146 /* send whitespace-delimited word to plumber */
147 m = emalloc(sizeof(Plumbmsg));
148 m->src = estrdup("acme");
149 m->dst = nil;
150 dir = dirname(t, nil, 0);
151 if(dir.nr==1 && dir.r[0]=='.'){ /* sigh */
152 free(dir.r);
153 dir.r = nil;
154 dir.nr = 0;
155 }
156 if(dir.nr == 0)
157 m->wdir = estrdup(wdir);
158 else
159 m->wdir = runetobyte(dir.r, dir.nr);
160 free(dir.r);
161 m->type = estrdup("text");
162 m->attr = nil;
163 buf[0] = '\0';
164 if(q1 == q0){
165 if(t->q1>t->q0 && t->q0<=q0 && q0<=t->q1){
166 q0 = t->q0;
167 q1 = t->q1;
168 }else{
169 p = q0;
170 while(q0>0 && (c=tgetc(t, q0-1))!=' ' && c!='\t' && c!='\n')
171 q0--;
172 while(q1<t->file->b.nc && (c=tgetc(t, q1))!=' ' && c!='\t' && c!='\n')
173 q1++;
174 if(q1 == q0){
175 plumbfree(m);
176 goto Return;
177 }
178 sprint(buf, "click=%d", p-q0);
179 m->attr = plumbunpackattr(buf);
180 }
181 }
182 r = runemalloc(q1-q0);
183 bufread(&t->file->b, q0, r, q1-q0);
184 m->data = runetobyte(r, q1-q0);
185 m->ndata = strlen(m->data);
186 free(r);
187 if(m->ndata<messagesize-1024 && plumbsendtofid(plumbsendfid, m) >= 0){
188 plumbfree(m);
189 goto Return;
190 }
191 plumbfree(m);
192 /* plumber failed to match; fall through */
193 }
194
195 /* interpret alphanumeric string ourselves */
196 if(expanded == FALSE)
197 return;
198 if(e.name || e.u.at)
199 openfile(t, &e);
200 else{
201 if(t->w == nil)
202 return;
203 ct = &t->w->body;
204 if(t->w != ct->w)
205 winlock(ct->w, 'M');
206 if(t == ct)
207 textsetselect(ct, e.q1, e.q1);
208 n = e.q1 - e.q0;
209 r = runemalloc(n);
210 bufread(&t->file->b, e.q0, r, n);
211 if(search(ct, r, n) && e.jump)
212 moveto(mousectl, addpt(frptofchar(&ct->fr, ct->fr.p0), Pt(4, ct->fr.font->height-4)));
213 if(t->w != ct->w)
214 winunlock(ct->w);
215 free(r);
216 }
217
218 Return:
219 free(e.name);
220 free(e.bname);
221}
222
223int
224plumbgetc(void *a, uint n)
225{
226 Rune *r;
227
228 r = a;
229 if(n>runestrlen(r))
230 return 0;
231 return r[n];
232}
233
234void
235plumblook(Plumbmsg *m)
236{
237 Expand e;
238 char *addr;
239
240 if(m->ndata >= BUFSIZE){
241 warning(nil, "insanely long file name (%d bytes) in plumb message (%.32s...)\n", m->ndata, m->data);
242 return;
243 }
244 e.q0 = 0;
245 e.q1 = 0;
246 if(m->data[0] == '\0')
247 return;
248 e.u.ar = nil;
249 e.bname = m->data;
250 e.name = bytetorune(e.bname, &e.nname);
251 e.jump = TRUE;
252 e.a0 = 0;
253 e.a1 = 0;
254 addr = plumblookup(m->attr, "addr");
255 if(addr != nil){
256 e.u.ar = bytetorune(addr, &e.a1);
257 e.agetc = plumbgetc;
258 }
259 drawtopwindow();
260 openfile(nil, &e);
261 free(e.name);
262 free(e.u.at);
263}
264
265void
266plumbshow(Plumbmsg *m)
267{
268 Window *w;
269 Rune rb[256], *r;
270 int nb, nr;
271 Runestr rs;
272 char *name, *p, namebuf[16];
273
274 drawtopwindow();
275 w = makenewwindow(nil);
276 name = plumblookup(m->attr, "filename");
277 if(name == nil){
278 name = namebuf;
279 nuntitled++;
280 snprint(namebuf, sizeof namebuf, "Untitled-%d", nuntitled);
281 }
282 p = nil;
283 if(name[0]!='/' && m->wdir!=nil && m->wdir[0]!='\0'){
284 nb = strlen(m->wdir) + 1 + strlen(name) + 1;
285 p = emalloc(nb);
286 snprint(p, nb, "%s/%s", m->wdir, name);
287 name = p;
288 }
289 cvttorunes(name, strlen(name), rb, &nb, &nr, nil);
290 free(p);
291 rs = cleanrname(runestr(rb, nr));
292 winsetname(w, rs.r, rs.nr);
293 r = runemalloc(m->ndata);
294 cvttorunes(m->data, m->ndata, r, &nb, &nr, nil);
295 textinsert(&w->body, 0, r, nr, TRUE);
296 free(r);
297 w->body.file->mod = FALSE;
298 w->dirty = FALSE;
299 winsettag(w);
300 textscrdraw(&w->body);
301 textsetselect(&w->tag, w->tag.file->b.nc, w->tag.file->b.nc);
302 xfidlog(w, "new");
303}
304
305int
306search(Text *ct, Rune *r, uint n)
307{
308 uint q, nb, maxn;
309 int around;
310 Rune *s, *b, *c;
311
312 if(n==0 || n>ct->file->b.nc)
313 return FALSE;
314 if(2*n > RBUFSIZE){
315 warning(nil, "string too long\n");
316 return FALSE;
317 }
318 maxn = max(2*n, RBUFSIZE);
319 s = fbufalloc();
320 b = s;
321 nb = 0;
322 b[nb] = 0;
323 around = 0;
324 q = ct->q1;
325 for(;;){
326 if(q >= ct->file->b.nc){
327 q = 0;
328 around = 1;
329 nb = 0;
330 b[nb] = 0;
331 }
332 if(nb > 0){
333 c = runestrchr(b, r[0]);
334 if(c == nil){
335 q += nb;
336 nb = 0;
337 b[nb] = 0;
338 if(around && q>=ct->q1)
339 break;
340 continue;
341 }
342 q += (c-b);
343 nb -= (c-b);
344 b = c;
345 }
346 /* reload if buffer covers neither string nor rest of file */
347 if(nb<n && nb!=ct->file->b.nc-q){
348 nb = ct->file->b.nc-q;
349 if(nb >= maxn)
350 nb = maxn-1;
351 bufread(&ct->file->b, q, s, nb);
352 b = s;
353 b[nb] = '\0';
354 }
355 /* this runeeq is fishy but the null at b[nb] makes it safe */
356 if(runeeq(b, n, r, n)==TRUE){
357 if(ct->w){
358 textshow(ct, q, q+n, 1);
359 winsettag(ct->w);
360 }else{
361 ct->q0 = q;
362 ct->q1 = q+n;
363 }
364 seltext = ct;
365 fbuffree(s);
366 return TRUE;
367 }
368 --nb;
369 b++;
370 q++;
371 if(around && q>=ct->q1)
372 break;
373 }
374 fbuffree(s);
375 return FALSE;
376}
377
378int
379isfilec(Rune r)
380{
381 static Rune Lx[] = { '.', '-', '+', '/', ':', 0 };
382 if(isalnum(r))
383 return TRUE;
384 if(runestrchr(Lx, r))
385 return TRUE;
386 return FALSE;
387}
388
389/* Runestr wrapper for cleanname */
390Runestr
391cleanrname(Runestr rs)
392{
393 char *s;
394 int nb, nulls;
395
396 s = runetobyte(rs.r, rs.nr);
397 cleanname(s);
398 cvttorunes(s, strlen(s), rs.r, &nb, &rs.nr, &nulls);
399 free(s);
400 return rs;
401}
402
403Runestr
404includefile(Rune *dir, Rune *file, int nfile)
405{
406 int m, n;
407 char *a;
408 Rune *r;
409 static Rune Lslash[] = { '/', 0 };
410
411 m = runestrlen(dir);
412 a = emalloc((m+1+nfile)*UTFmax+1);
413 sprint(a, "%S/%.*S", dir, nfile, file);
414 n = access(a, 0);
415 free(a);
416 if(n < 0)
417 return runestr(nil, 0);
418 r = runemalloc(m+1+nfile);
419 runemove(r, dir, m);
420 runemove(r+m, Lslash, 1);
421 runemove(r+m+1, file, nfile);
422 free(file);
423 return cleanrname(runestr(r, m+1+nfile));
424}
425
426static Rune *objdir;
427
428Runestr
429includename(Text *t, Rune *r, int n)
430{
431 Window *w;
432 char buf[128];
433 Rune Lsysinclude[] = { '/', 's', 'y', 's', '/', 'i', 'n', 'c', 'l', 'u', 'd', 'e', 0 };
434 Rune Lusrinclude[] = { '/', 'u', 's', 'r', '/', 'i', 'n', 'c', 'l', 'u', 'd', 'e', 0 };
435 Rune Lusrlocalinclude[] = { '/', 'u', 's', 'r', '/', 'l', 'o', 'c', 'a', 'l',
436 '/', 'i', 'n', 'c', 'l', 'u', 'd', 'e', 0 };
437 Rune Lusrlocalplan9include[] = { '/', 'u', 's', 'r', '/', 'l', 'o', 'c', 'a', 'l',
438 '/', 'p', 'l', 'a', 'n', '9', '/', 'i', 'n', 'c', 'l', 'u', 'd', 'e', 0 };
439 Runestr file;
440 int i;
441
442 if(objdir==nil && objtype!=nil){
443 sprint(buf, "/%s/include", objtype);
444 objdir = bytetorune(buf, &i);
445 objdir = runerealloc(objdir, i+1);
446 objdir[i] = '\0';
447 }
448
449 w = t->w;
450 if(n==0 || r[0]=='/' || w==nil)
451 goto Rescue;
452 if(n>2 && r[0]=='.' && r[1]=='/')
453 goto Rescue;
454 file.r = nil;
455 file.nr = 0;
456 for(i=0; i<w->nincl && file.r==nil; i++)
457 file = includefile(w->incl[i], r, n);
458
459 if(file.r == nil)
460 file = includefile(Lsysinclude, r, n);
461 if(file.r == nil)
462 file = includefile(Lusrlocalplan9include, r, n);
463 if(file.r == nil)
464 file = includefile(Lusrlocalinclude, r, n);
465 if(file.r == nil)
466 file = includefile(Lusrinclude, r, n);
467 if(file.r==nil && objdir!=nil)
468 file = includefile(objdir, r, n);
469 if(file.r == nil)
470 goto Rescue;
471 return file;
472
473 Rescue:
474 return runestr(r, n);
475}
476
477Runestr
478dirname(Text *t, Rune *r, int n)
479{
480 Rune *b, c;
481 uint m, nt;
482 int slash;
483 Runestr tmp;
484
485 b = nil;
486 if(t==nil || t->w==nil)
487 goto Rescue;
488 nt = t->w->tag.file->b.nc;
489 if(nt == 0)
490 goto Rescue;
491 if(n>=1 && r[0]=='/')
492 goto Rescue;
493 b = runemalloc(nt+n+1);
494 bufread(&t->w->tag.file->b, 0, b, nt);
495 slash = -1;
496 for(m=0; m<nt; m++){
497 c = b[m];
498 if(c == '/')
499 slash = m;
500 if(c==' ' || c=='\t')
501 break;
502 }
503 if(slash < 0)
504 goto Rescue;
505 runemove(b+slash+1, r, n);
506 free(r);
507 return cleanrname(runestr(b, slash+1+n));
508
509 Rescue:
510 free(b);
511 tmp = runestr(r, n);
512 if(r)
513 return cleanrname(tmp);
514 return tmp;
515}
516
517int
518expandfile(Text *t, uint q0, uint q1, Expand *e)
519{
520 int i, n, nname, colon, eval;
521 uint amin, amax;
522 Rune *r, c;
523 Window *w;
524 Runestr rs;
525
526 amax = q1;
527 if(q1 == q0){
528 colon = -1;
529 while(q1<t->file->b.nc && isfilec(c=textreadc(t, q1))){
530 if(c == ':'){
531 colon = q1;
532 break;
533 }
534 q1++;
535 }
536 while(q0>0 && (isfilec(c=textreadc(t, q0-1)) || isaddrc(c) || isregexc(c))){
537 q0--;
538 if(colon<0 && c==':')
539 colon = q0;
540 }
541 /*
542 * if it looks like it might begin file: , consume address chars after :
543 * otherwise terminate expansion at :
544 */
545 if(colon >= 0){
546 q1 = colon;
547 if(colon<t->file->b.nc-1 && isaddrc(textreadc(t, colon+1))){
548 q1 = colon+1;
549 while(q1<t->file->b.nc && isaddrc(textreadc(t, q1)))
550 q1++;
551 }
552 }
553 if(q1 > q0)
554 if(colon >= 0){ /* stop at white space */
555 for(amax=colon+1; amax<t->file->b.nc; amax++)
556 if((c=textreadc(t, amax))==' ' || c=='\t' || c=='\n')
557 break;
558 }else
559 amax = t->file->b.nc;
560 }
561 amin = amax;
562 e->q0 = q0;
563 e->q1 = q1;
564 n = q1-q0;
565 if(n == 0)
566 return FALSE;
567 /* see if it's a file name */
568 r = runemalloc(n);
569 bufread(&t->file->b, q0, r, n);
570 /* first, does it have bad chars? */
571 nname = -1;
572 for(i=0; i<n; i++){
573 c = r[i];
574 if(c==':' && nname<0){
575 if(q0+i+1<t->file->b.nc && (i==n-1 || isaddrc(textreadc(t, q0+i+1))))
576 amin = q0+i;
577 else
578 goto Isntfile;
579 nname = i;
580 }
581 }
582 if(nname == -1)
583 nname = n;
584 for(i=0; i<nname; i++)
585 if(!isfilec(r[i]))
586 goto Isntfile;
587 /*
588 * See if it's a file name in <>, and turn that into an include
589 * file name if so. Should probably do it for "" too, but that's not
590 * restrictive enough syntax and checking for a #include earlier on the
591 * line would be silly.
592 */
593 if(q0>0 && textreadc(t, q0-1)=='<' && q1<t->file->b.nc && textreadc(t, q1)=='>'){
594 rs = includename(t, r, nname);
595 r = rs.r;
596 nname = rs.nr;
597 }
598 else if(amin == q0)
599 goto Isfile;
600 else{
601 rs = dirname(t, r, nname);
602 r = rs.r;
603 nname = rs.nr;
604 }
605 e->bname = runetobyte(r, nname);
606 /* if it's already a window name, it's a file */
607 w = lookfile(r, nname);
608 if(w != nil)
609 goto Isfile;
610 /* if it's the name of a file, it's a file */
611 if(ismtpt(e->bname) || access(e->bname, 0) < 0){
612 free(e->bname);
613 e->bname = nil;
614 goto Isntfile;
615 }
616
617 Isfile:
618 e->name = r;
619 e->nname = nname;
620 e->u.at = t;
621 e->a0 = amin+1;
622 eval = FALSE;
623 address(TRUE, nil, range(-1,-1), range(0,0), t, e->a0, amax, tgetc, &eval, (uint*)&e->a1);
624 return TRUE;
625
626 Isntfile:
627 free(r);
628 return FALSE;
629}
630
631int
632expand(Text *t, uint q0, uint q1, Expand *e)
633{
634 memset(e, 0, sizeof *e);
635 e->agetc = tgetc;
636 /* if in selection, choose selection */
637 e->jump = TRUE;
638 if(q1==q0 && t->q1>t->q0 && t->q0<=q0 && q0<=t->q1){
639 q0 = t->q0;
640 q1 = t->q1;
641 if(t->what == Tag)
642 e->jump = FALSE;
643 }
644
645 if(expandfile(t, q0, q1, e))
646 return TRUE;
647
648 if(q0 == q1){
649 while(q1<t->file->b.nc && isalnum(textreadc(t, q1)))
650 q1++;
651 while(q0>0 && isalnum(textreadc(t, q0-1)))
652 q0--;
653 }
654 e->q0 = q0;
655 e->q1 = q1;
656 return q1 > q0;
657}
658
659Window*
660lookfile(Rune *s, int n)
661{
662 int i, j, k;
663 Window *w;
664 Column *c;
665 Text *t;
666
667 /* avoid terminal slash on directories */
668 if(n>1 && s[n-1] == '/')
669 --n;
670 for(j=0; j<row.ncol; j++){
671 c = row.col[j];
672 for(i=0; i<c->nw; i++){
673 w = c->w[i];
674 t = &w->body;
675 k = t->file->nname;
676 if(k>1 && t->file->name[k-1] == '/')
677 k--;
678 if(runeeq(t->file->name, k, s, n)){
679 w = w->body.file->curtext->w;
680 if(w->col != nil) /* protect against race deleting w */
681 return w;
682 }
683 }
684 }
685 return nil;
686}
687
688Window*
689lookid(int id, int dump)
690{
691 int i, j;
692 Window *w;
693 Column *c;
694
695 for(j=0; j<row.ncol; j++){
696 c = row.col[j];
697 for(i=0; i<c->nw; i++){
698 w = c->w[i];
699 if(dump && w->dumpid == id)
700 return w;
701 if(!dump && w->id == id)
702 return w;
703 }
704 }
705 return nil;
706}
707
708
709Window*
710openfile(Text *t, Expand *e)
711{
712 Range r;
713 Window *w, *ow;
714 int eval, i, n;
715 Rune *rp;
716 Runestr rs;
717 uint dummy;
718
719 r.q0 = 0;
720 r.q1 = 0;
721 if(e->nname == 0){
722 w = t->w;
723 if(w == nil)
724 return nil;
725 }else{
726 w = lookfile(e->name, e->nname);
727 if(w == nil && e->name[0] != '/'){
728 /*
729 * Unrooted path in new window.
730 * This can happen if we type a pwd-relative path
731 * in the topmost tag or the column tags.
732 * Most of the time plumber takes care of these,
733 * but plumber might not be running or might not
734 * be configured to accept plumbed directories.
735 * Make the name a full path, just like we would if
736 * opening via the plumber.
737 */
738 n = utflen(wdir)+1+e->nname+1;
739 rp = runemalloc(n);
740 runesnprint(rp, n, "%s/%.*S", wdir, e->nname, e->name);
741 rs = cleanrname(runestr(rp, n-1));
742 free(e->name);
743 e->name = rs.r;
744 e->nname = rs.nr;
745 w = lookfile(e->name, e->nname);
746 }
747 }
748 if(w){
749 t = &w->body;
750 if(!t->col->safe && t->fr.maxlines==0) /* window is obscured by full-column window */
751 colgrow(t->col, t->col->w[0], 1);
752 }else{
753 ow = nil;
754 if(t)
755 ow = t->w;
756 w = makenewwindow(t);
757 t = &w->body;
758 winsetname(w, e->name, e->nname);
759 if(textload(t, 0, e->bname, 1) >= 0)
760 t->file->unread = FALSE;
761 t->file->mod = FALSE;
762 t->w->dirty = FALSE;
763 winsettag(t->w);
764 textsetselect(&t->w->tag, t->w->tag.file->b.nc, t->w->tag.file->b.nc);
765 if(ow != nil){
766 for(i=ow->nincl; --i>=0; ){
767 n = runestrlen(ow->incl[i]);
768 rp = runemalloc(n);
769 runemove(rp, ow->incl[i], n);
770 winaddincl(w, rp, n);
771 }
772 w->autoindent = ow->autoindent;
773 }else
774 w->autoindent = globalautoindent;
775 xfidlog(w, "new");
776 }
777 if(e->a1 == e->a0)
778 eval = FALSE;
779 else{
780 eval = TRUE;
781 r = address(TRUE, t, range(-1,-1), range(t->q0, t->q1), e->u.at, e->a0, e->a1, e->agetc, &eval, &dummy);
782 if(r.q0 > r.q1) {
783 eval = FALSE;
784 warning(nil, "addresses out of order\n");
785 }
786 if(eval == FALSE)
787 e->jump = FALSE; /* don't jump if invalid address */
788 }
789 if(eval == FALSE){
790 r.q0 = t->q0;
791 r.q1 = t->q1;
792 }
793 textshow(t, r.q0, r.q1, 1);
794 winsettag(t->w);
795 seltext = t;
796 if(e->jump)
797 moveto(mousectl, addpt(frptofchar(&t->fr, t->fr.p0), Pt(4, font->height-4)));
798 return w;
799}
800
801void
802new(Text *et, Text *t, Text *argt, int flag1, int flag2, Rune *arg, int narg)
803{
804 int ndone;
805 Rune *a, *f;
806 int na, nf;
807 Expand e;
808 Runestr rs;
809 Window *w;
810
811 getarg(argt, FALSE, TRUE, &a, &na);
812 if(a){
813 new(et, t, nil, flag1, flag2, a, na);
814 if(narg == 0)
815 return;
816 }
817 /* loop condition: *arg is not a blank */
818 for(ndone=0; ; ndone++){
819 a = findbl(arg, narg, &na);
820 if(a == arg){
821 if(ndone==0 && et->col!=nil) {
822 w = coladd(et->col, nil, nil, -1);
823 winsettag(w);
824 xfidlog(w, "new");
825 }
826 break;
827 }
828 nf = narg-na;
829 f = runemalloc(nf);
830 runemove(f, arg, nf);
831 rs = dirname(et, f, nf);
832 memset(&e, 0, sizeof e);
833 e.name = rs.r;
834 e.nname = rs.nr;
835 e.bname = runetobyte(rs.r, rs.nr);
836 e.jump = TRUE;
837 openfile(et, &e);
838 free(e.name);
839 free(e.bname);
840 arg = skipbl(a, na, &narg);
841 }
842}