Annotation of src/usr.bin/tmux/status.c, Revision 1.73
1.73 ! nicm 1: /* $OpenBSD: status.c,v 1.72 2011/03/29 19:30:16 nicm Exp $ */
1.1 nicm 2:
3: /*
4: * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15: * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16: * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18:
19: #include <sys/types.h>
20: #include <sys/time.h>
21:
22: #include <errno.h>
23: #include <limits.h>
24: #include <stdarg.h>
25: #include <stdlib.h>
26: #include <string.h>
27: #include <time.h>
28: #include <unistd.h>
29:
30: #include "tmux.h"
31:
1.48 nicm 32: char *status_redraw_get_left(
33: struct client *, time_t, int, struct grid_cell *, size_t *);
34: char *status_redraw_get_right(
35: struct client *, time_t, int, struct grid_cell *, size_t *);
1.71 nicm 36: char *status_find_job(struct client *, char **);
37: void status_job_free(void *);
1.38 nicm 38: void status_job_callback(struct job *);
1.47 nicm 39: char *status_print(
1.55 nicm 40: struct client *, struct winlink *, time_t, struct grid_cell *);
1.72 nicm 41: void status_replace1(struct client *, struct session *, struct winlink *,
42: struct window_pane *, char **, char **, char *, size_t, int);
1.42 nicm 43: void status_message_callback(int, short, void *);
1.1 nicm 44:
1.65 nicm 45: const char *status_prompt_up_history(u_int *);
46: const char *status_prompt_down_history(u_int *);
47: void status_prompt_add_history(const char *);
1.1 nicm 48: char *status_prompt_complete(const char *);
49:
1.65 nicm 50: /* Status prompt history. */
51: ARRAY_DECL(, char *) status_prompt_history = ARRAY_INITIALIZER;
52:
1.71 nicm 53: /* Status output tree. */
54: RB_GENERATE(status_out_tree, status_out, entry, status_out_cmp);
55:
56: /* Output tree comparison function. */
57: int
58: status_out_cmp(struct status_out *so1, struct status_out *so2)
59: {
60: return (strcmp(so1->cmd, so2->cmd));
61: }
62:
1.48 nicm 63: /* Retrieve options for left string. */
64: char *
65: status_redraw_get_left(struct client *c,
66: time_t t, int utf8flag, struct grid_cell *gc, size_t *size)
67: {
68: struct session *s = c->session;
69: char *left;
70: u_char fg, bg, attr;
71: size_t leftlen;
72:
73: fg = options_get_number(&s->options, "status-left-fg");
74: if (fg != 8)
75: colour_set_fg(gc, fg);
76: bg = options_get_number(&s->options, "status-left-bg");
77: if (bg != 8)
78: colour_set_bg(gc, bg);
79: attr = options_get_number(&s->options, "status-left-attr");
80: if (attr != 0)
81: gc->attr = attr;
82:
1.72 nicm 83: left = status_replace(c, NULL,
84: NULL, NULL, options_get_string(&s->options, "status-left"), t, 1);
1.48 nicm 85:
86: *size = options_get_number(&s->options, "status-left-length");
87: leftlen = screen_write_cstrlen(utf8flag, "%s", left);
88: if (leftlen < *size)
89: *size = leftlen;
90: return (left);
91: }
92:
93: /* Retrieve options for right string. */
94: char *
95: status_redraw_get_right(struct client *c,
96: time_t t, int utf8flag, struct grid_cell *gc, size_t *size)
97: {
98: struct session *s = c->session;
99: char *right;
100: u_char fg, bg, attr;
101: size_t rightlen;
102:
103: fg = options_get_number(&s->options, "status-right-fg");
104: if (fg != 8)
105: colour_set_fg(gc, fg);
106: bg = options_get_number(&s->options, "status-right-bg");
107: if (bg != 8)
108: colour_set_bg(gc, bg);
109: attr = options_get_number(&s->options, "status-right-attr");
110: if (attr != 0)
111: gc->attr = attr;
112:
1.72 nicm 113: right = status_replace(c, NULL,
114: NULL, NULL, options_get_string(&s->options, "status-right"), t, 1);
1.48 nicm 115:
116: *size = options_get_number(&s->options, "status-right-length");
117: rightlen = screen_write_cstrlen(utf8flag, "%s", right);
118: if (rightlen < *size)
119: *size = rightlen;
120: return (right);
121: }
122:
1.73 ! nicm 123: /* Set window at window list position. */
! 124: void
! 125: status_set_window_at(struct client *c, u_int x)
! 126: {
! 127: struct session *s = c->session;
! 128: struct winlink *wl;
! 129:
! 130: x += s->wlmouse;
! 131: RB_FOREACH(wl, winlinks, &s->windows) {
! 132: if (x < wl->status_width &&
! 133: session_select(s, wl->idx) == 0) {
! 134: server_redraw_session(s);
! 135: }
! 136: x -= wl->status_width + 1;
! 137: }
! 138: }
! 139:
1.1 nicm 140: /* Draw status for client on the last lines of given context. */
141: int
142: status_redraw(struct client *c)
143: {
1.48 nicm 144: struct screen_write_ctx ctx;
145: struct session *s = c->session;
146: struct winlink *wl;
147: struct screen old_status, window_list;
148: struct grid_cell stdgc, lgc, rgc, gc;
149: time_t t;
150: char *left, *right;
151: u_int offset, needed;
152: u_int wlstart, wlwidth, wlavailable, wloffset, wlsize;
153: size_t llen, rlen;
154: int larrow, rarrow, utf8flag;
1.1 nicm 155:
1.49 nicm 156: /* No status line? */
1.7 nicm 157: if (c->tty.sy == 0 || !options_get_number(&s->options, "status"))
158: return (1);
1.48 nicm 159: left = right = NULL;
1.7 nicm 160: larrow = rarrow = 0;
1.1 nicm 161:
1.48 nicm 162: /* Update status timer. */
1.1 nicm 163: if (gettimeofday(&c->status_timer, NULL) != 0)
1.34 nicm 164: fatal("gettimeofday failed");
1.48 nicm 165: t = c->status_timer.tv_sec;
166:
167: /* Set up default colour. */
1.1 nicm 168: memcpy(&stdgc, &grid_default_cell, sizeof gc);
1.33 nicm 169: colour_set_fg(&stdgc, options_get_number(&s->options, "status-fg"));
170: colour_set_bg(&stdgc, options_get_number(&s->options, "status-bg"));
1.1 nicm 171: stdgc.attr |= options_get_number(&s->options, "status-attr");
172:
1.48 nicm 173: /* Create the target screen. */
174: memcpy(&old_status, &c->status, sizeof old_status);
175: screen_init(&c->status, c->tty.sx, 1, 0);
176: screen_write_start(&ctx, NULL, &c->status);
177: for (offset = 0; offset < c->tty.sx; offset++)
178: screen_write_putc(&ctx, &stdgc, ' ');
179: screen_write_stop(&ctx);
180:
181: /* If the height is one line, blank status line. */
182: if (c->tty.sy <= 1)
183: goto out;
1.1 nicm 184:
1.48 nicm 185: /* Get UTF-8 flag. */
1.3 nicm 186: utf8flag = options_get_number(&s->options, "status-utf8");
187:
1.48 nicm 188: /* Work out left and right strings. */
189: memcpy(&lgc, &stdgc, sizeof lgc);
190: left = status_redraw_get_left(c, t, utf8flag, &lgc, &llen);
191: memcpy(&rgc, &stdgc, sizeof rgc);
192: right = status_redraw_get_right(c, t, utf8flag, &rgc, &rlen);
1.1 nicm 193:
194: /*
1.48 nicm 195: * Figure out how much space we have for the window list. If there
196: * isn't enough space, just show a blank status line.
1.1 nicm 197: */
1.55 nicm 198: needed = 0;
1.1 nicm 199: if (llen != 0)
1.48 nicm 200: needed += llen + 1;
1.1 nicm 201: if (rlen != 0)
1.48 nicm 202: needed += rlen + 1;
203: if (c->tty.sx == 0 || c->tty.sx <= needed)
204: goto out;
205: wlavailable = c->tty.sx - needed;
1.1 nicm 206:
1.48 nicm 207: /* Calculate the total size needed for the window list. */
208: wlstart = wloffset = wlwidth = 0;
1.1 nicm 209: RB_FOREACH(wl, winlinks, &s->windows) {
1.48 nicm 210: if (wl->status_text != NULL)
211: xfree(wl->status_text);
212: memcpy(&wl->status_cell, &stdgc, sizeof wl->status_cell);
213: wl->status_text = status_print(c, wl, t, &wl->status_cell);
1.55 nicm 214: wl->status_width =
1.48 nicm 215: screen_write_cstrlen(utf8flag, "%s", wl->status_text);
216:
1.1 nicm 217: if (wl == s->curw)
1.48 nicm 218: wloffset = wlwidth;
219: wlwidth += wl->status_width + 1;
220: }
221:
222: /* Create a new screen for the window list. */
223: screen_init(&window_list, wlwidth, 1, 0);
224:
225: /* And draw the window list into it. */
226: screen_write_start(&ctx, NULL, &window_list);
227: RB_FOREACH(wl, winlinks, &s->windows) {
1.55 nicm 228: screen_write_cnputs(&ctx,
1.48 nicm 229: -1, &wl->status_cell, utf8flag, "%s", wl->status_text);
230: screen_write_putc(&ctx, &stdgc, ' ');
1.1 nicm 231: }
1.48 nicm 232: screen_write_stop(&ctx);
1.1 nicm 233:
1.48 nicm 234: /* If there is enough space for the total width, skip to draw now. */
235: if (wlwidth <= wlavailable)
1.1 nicm 236: goto draw;
237:
238: /* Find size of current window text. */
1.48 nicm 239: wlsize = s->curw->status_width;
1.1 nicm 240:
241: /*
1.48 nicm 242: * If the current window is already on screen, good to draw from the
1.1 nicm 243: * start and just leave off the end.
244: */
1.48 nicm 245: if (wloffset + wlsize < wlavailable) {
246: if (wlavailable > 0) {
247: rarrow = 1;
248: wlavailable--;
249: }
250: wlwidth = wlavailable;
251: } else {
252: /*
253: * Work out how many characters we need to omit from the
254: * start. There are wlavailable characters to fill, and
255: * wloffset + wlsize must be the last. So, the start character
256: * is wloffset + wlsize - wlavailable.
257: */
258: if (wlavailable > 0) {
259: larrow = 1;
260: wlavailable--;
261: }
1.55 nicm 262:
1.48 nicm 263: wlstart = wloffset + wlsize - wlavailable;
264: if (wlavailable > 0 && wlwidth > wlstart + wlavailable + 1) {
1.1 nicm 265: rarrow = 1;
1.48 nicm 266: wlstart++;
267: wlavailable--;
1.1 nicm 268: }
1.48 nicm 269: wlwidth = wlavailable;
270: }
1.1 nicm 271:
1.48 nicm 272: /* Bail if anything is now too small too. */
273: if (wlwidth == 0 || wlavailable == 0) {
274: screen_free(&window_list);
275: goto out;
1.1 nicm 276: }
277:
278: /*
1.48 nicm 279: * Now the start position is known, work out the state of the left and
280: * right arrows.
1.1 nicm 281: */
282: offset = 0;
283: RB_FOREACH(wl, winlinks, &s->windows) {
1.63 nicm 284: if (wl->flags & WINLINK_ALERTFLAGS &&
285: larrow == 1 && offset < wlstart)
286: larrow = -1;
1.1 nicm 287:
1.48 nicm 288: offset += wl->status_width;
1.1 nicm 289:
1.63 nicm 290: if (wl->flags & WINLINK_ALERTFLAGS &&
291: rarrow == 1 && offset > wlstart + wlwidth)
292: rarrow = -1;
1.1 nicm 293: }
294:
1.48 nicm 295: draw:
1.55 nicm 296: /* Begin drawing. */
1.48 nicm 297: screen_write_start(&ctx, NULL, &c->status);
1.1 nicm 298:
1.48 nicm 299: /* Draw the left string and arrow. */
300: screen_write_cursormove(&ctx, 0, 0);
301: if (llen != 0) {
302: screen_write_cnputs(&ctx, llen, &lgc, utf8flag, "%s", left);
1.5 nicm 303: screen_write_putc(&ctx, &stdgc, ' ');
1.1 nicm 304: }
305: if (larrow != 0) {
306: memcpy(&gc, &stdgc, sizeof gc);
307: if (larrow == -1)
308: gc.attr ^= GRID_ATTR_REVERSE;
309: screen_write_putc(&ctx, &gc, '<');
310: }
1.48 nicm 311:
312: /* Draw the right string and arrow. */
1.1 nicm 313: if (rarrow != 0) {
1.48 nicm 314: screen_write_cursormove(&ctx, c->tty.sx - rlen - 2, 0);
1.1 nicm 315: memcpy(&gc, &stdgc, sizeof gc);
316: if (rarrow == -1)
317: gc.attr ^= GRID_ATTR_REVERSE;
318: screen_write_putc(&ctx, &gc, '>');
1.48 nicm 319: } else
320: screen_write_cursormove(&ctx, c->tty.sx - rlen - 1, 0);
321: if (rlen != 0) {
322: screen_write_putc(&ctx, &stdgc, ' ');
323: screen_write_cnputs(&ctx, rlen, &rgc, utf8flag, "%s", right);
1.1 nicm 324: }
325:
1.48 nicm 326: /* Figure out the offset for the window list. */
1.58 nicm 327: if (llen != 0)
328: wloffset = llen + 1;
329: else
330: wloffset = 0;
1.48 nicm 331: if (wlwidth < wlavailable) {
332: switch (options_get_number(&s->options, "status-justify")) {
333: case 1: /* centered */
1.58 nicm 334: wloffset += (wlavailable - wlwidth) / 2;
1.48 nicm 335: break;
336: case 2: /* right */
1.58 nicm 337: wloffset += (wlavailable - wlwidth);
1.48 nicm 338: break;
339: }
340: }
341: if (larrow != 0)
342: wloffset++;
343:
344: /* Copy the window list. */
1.73 ! nicm 345: s->wlmouse = -wloffset + wlstart;
1.48 nicm 346: screen_write_cursormove(&ctx, wloffset, 0);
347: screen_write_copy(&ctx, &window_list, wlstart, 0, wlwidth, 1);
1.55 nicm 348: screen_free(&window_list);
1.1 nicm 349:
1.48 nicm 350: screen_write_stop(&ctx);
1.1 nicm 351:
352: out:
353: if (left != NULL)
354: xfree(left);
355: if (right != NULL)
356: xfree(right);
357:
358: if (grid_compare(c->status.grid, old_status.grid) == 0) {
359: screen_free(&old_status);
360: return (0);
361: }
362: screen_free(&old_status);
363: return (1);
364: }
365:
1.46 nicm 366: /* Replace a single special sequence (prefixed by #). */
367: void
1.72 nicm 368: status_replace1(struct client *c, struct session *s, struct winlink *wl,
369: struct window_pane *wp, char **iptr, char **optr, char *out,
370: size_t outsize, int jobsflag)
371: {
372: char ch, tmp[256], *ptr, *endptr, *freeptr;
373: size_t ptrlen;
374: long limit;
1.46 nicm 375:
1.72 nicm 376: if (s == NULL)
377: s = c->session;
1.47 nicm 378: if (wl == NULL)
379: wl = s->curw;
1.72 nicm 380: if (wp == NULL)
381: wp = wl->window->active;
1.47 nicm 382:
1.46 nicm 383: errno = 0;
384: limit = strtol(*iptr, &endptr, 10);
385: if ((limit == 0 && errno != EINVAL) ||
386: (limit == LONG_MIN && errno != ERANGE) ||
1.55 nicm 387: (limit == LONG_MAX && errno != ERANGE) ||
1.46 nicm 388: limit != 0)
389: *iptr = endptr;
390: if (limit <= 0)
391: limit = LONG_MAX;
392:
393: freeptr = NULL;
394:
395: switch (*(*iptr)++) {
396: case '(':
397: if (!jobsflag) {
398: ch = ')';
399: goto skip_to;
400: }
1.71 nicm 401: if ((ptr = status_find_job(c, iptr)) == NULL)
1.46 nicm 402: return;
403: goto do_replace;
1.72 nicm 404: case 'D':
405: xsnprintf(tmp, sizeof tmp, "%%%u", wp->id);
406: ptr = tmp;
407: goto do_replace;
1.46 nicm 408: case 'H':
409: if (gethostname(tmp, sizeof tmp) != 0)
410: fatal("gethostname failed");
411: ptr = tmp;
412: goto do_replace;
413: case 'I':
414: xsnprintf(tmp, sizeof tmp, "%d", wl->idx);
415: ptr = tmp;
416: goto do_replace;
417: case 'P':
1.72 nicm 418: xsnprintf(
419: tmp, sizeof tmp, "%u", window_pane_index(wl->window, wp));
1.46 nicm 420: ptr = tmp;
421: goto do_replace;
422: case 'S':
423: ptr = s->name;
424: goto do_replace;
425: case 'T':
1.72 nicm 426: ptr = wp->base.title;
1.46 nicm 427: goto do_replace;
428: case 'W':
429: ptr = wl->window->name;
430: goto do_replace;
1.47 nicm 431: case 'F':
1.67 nicm 432: ptr = window_printable_flags(s, wl);
433: freeptr = ptr;
1.47 nicm 434: goto do_replace;
1.46 nicm 435: case '[':
1.55 nicm 436: /*
1.46 nicm 437: * Embedded style, handled at display time. Leave present and
438: * skip input until ].
439: */
440: ch = ']';
441: goto skip_to;
442: case '#':
1.49 nicm 443: *(*optr)++ = '#';
1.46 nicm 444: break;
445: }
446:
447: return;
1.55 nicm 448:
1.46 nicm 449: do_replace:
450: ptrlen = strlen(ptr);
451: if ((size_t) limit < ptrlen)
452: ptrlen = limit;
453:
454: if (*optr + ptrlen >= out + outsize - 1)
455: return;
456: while (ptrlen > 0 && *ptr != '\0') {
457: *(*optr)++ = *ptr++;
458: ptrlen--;
459: }
460:
461: if (freeptr != NULL)
462: xfree(freeptr);
463: return;
464:
465: skip_to:
466: *(*optr)++ = '#';
467:
468: (*iptr)--; /* include ch */
469: while (**iptr != ch && **iptr != '\0') {
470: if (*optr >= out + outsize - 1)
471: break;
472: *(*optr)++ = *(*iptr)++;
473: }
474: }
475:
476: /* Replace special sequences in fmt. */
477: char *
1.72 nicm 478: status_replace(struct client *c, struct session *s, struct winlink *wl,
479: struct window_pane *wp, const char *fmt, time_t t, int jobsflag)
1.46 nicm 480: {
1.1 nicm 481: static char out[BUFSIZ];
1.46 nicm 482: char in[BUFSIZ], ch, *iptr, *optr;
1.47 nicm 483:
1.1 nicm 484: strftime(in, sizeof in, fmt, localtime(&t));
485: in[(sizeof in) - 1] = '\0';
486:
487: iptr = in;
488: optr = out;
489:
490: while (*iptr != '\0') {
491: if (optr >= out + (sizeof out) - 1)
492: break;
1.46 nicm 493: ch = *iptr++;
494:
1.70 nicm 495: if (ch != '#' || *iptr == '\0') {
1.1 nicm 496: *optr++ = ch;
1.46 nicm 497: continue;
1.1 nicm 498: }
1.72 nicm 499: status_replace1(
500: c, s, wl, wp, &iptr, &optr, out, sizeof out, jobsflag);
1.1 nicm 501: }
502: *optr = '\0';
503:
504: return (xstrdup(out));
505: }
506:
1.46 nicm 507: /* Figure out job name and get its result, starting it off if necessary. */
1.1 nicm 508: char *
1.71 nicm 509: status_find_job(struct client *c, char **iptr)
1.1 nicm 510: {
1.71 nicm 511: struct status_out *so, so_find;
512: char *cmd;
513: int lastesc;
514: size_t len;
1.1 nicm 515:
516: if (**iptr == '\0')
517: return (NULL);
518: if (**iptr == ')') { /* no command given */
519: (*iptr)++;
520: return (NULL);
521: }
522:
523: cmd = xmalloc(strlen(*iptr) + 1);
524: len = 0;
525:
526: lastesc = 0;
527: for (; **iptr != '\0'; (*iptr)++) {
528: if (!lastesc && **iptr == ')')
529: break; /* unescaped ) is the end */
530: if (!lastesc && **iptr == '\\') {
531: lastesc = 1;
532: continue; /* skip \ if not escaped */
533: }
534: lastesc = 0;
535: cmd[len++] = **iptr;
536: }
1.38 nicm 537: if (**iptr == '\0') /* no terminating ) */ {
538: xfree(cmd);
539: return (NULL);
540: }
1.1 nicm 541: (*iptr)++; /* skip final ) */
542: cmd[len] = '\0';
543:
1.71 nicm 544: /* First try in the new tree. */
545: so_find.cmd = cmd;
546: so = RB_FIND(status_out_tree, &c->status_new, &so_find);
547: if (so != NULL && so->out != NULL)
548: return (so->out);
549:
550: /* If not found at all, start the job and add to the tree. */
551: if (so == NULL) {
552: job_run(cmd, status_job_callback, status_job_free, c);
553: c->references++;
554:
555: so = xmalloc(sizeof *so);
556: so->cmd = xstrdup(cmd);
557: so->out = NULL;
558: RB_INSERT(status_out_tree, &c->status_new, so);
559: }
560:
561: /* Lookup in the old tree. */
562: so_find.cmd = cmd;
563: so = RB_FIND(status_out_tree, &c->status_old, &so_find);
564: xfree(cmd);
565: if (so != NULL)
566: return (so->out);
567: return (NULL);
568: }
569:
570: /* Free job tree. */
571: void
572: status_free_jobs(struct status_out_tree *sotree)
573: {
574: struct status_out *so, *so_next;
575:
576: so_next = RB_MIN(status_out_tree, sotree);
577: while (so_next != NULL) {
578: so = so_next;
579: so_next = RB_NEXT(status_out_tree, sotree, so);
580:
581: RB_REMOVE(status_out_tree, sotree, so);
582: if (so->out != NULL)
583: xfree(so->out);
584: xfree(so->cmd);
585: xfree(so);
1.38 nicm 586: }
1.71 nicm 587: }
588:
589: /* Update jobs on status interval. */
590: void
591: status_update_jobs(struct client *c)
592: {
593: /* Free the old tree. */
594: status_free_jobs(&c->status_old);
595:
596: /* Move the new to old. */
597: memcpy(&c->status_old, &c->status_new, sizeof c->status_old);
598: RB_INIT(&c->status_new);
599: }
600:
601: /* Free status job. */
602: void
603: status_job_free(void *data)
604: {
605: struct client *c = data;
606:
607: c->references--;
1.38 nicm 608: }
1.1 nicm 609:
1.46 nicm 610: /* Job has finished: save its result. */
1.38 nicm 611: void
612: status_job_callback(struct job *job)
613: {
1.71 nicm 614: struct client *c = job->data;
615: struct status_out *so, so_find;
616: char *line, *buf;
617: size_t len;
618:
619: if (c->flags & CLIENT_DEAD)
620: return;
621:
622: so_find.cmd = job->cmd;
623: so = RB_FIND(status_out_tree, &c->status_new, &so_find);
624: if (so == NULL || so->out != NULL)
625: return;
1.38 nicm 626:
1.41 nicm 627: buf = NULL;
628: if ((line = evbuffer_readline(job->event->input)) == NULL) {
629: len = EVBUFFER_LENGTH(job->event->input);
630: buf = xmalloc(len + 1);
631: if (len != 0)
632: memcpy(buf, EVBUFFER_DATA(job->event->input), len);
633: buf[len] = '\0';
1.71 nicm 634: } else
635: buf = xstrdup(line);
1.1 nicm 636:
1.71 nicm 637: so->out = buf;
638: server_redraw_client(c);
1.1 nicm 639: }
640:
1.46 nicm 641: /* Return winlink status line entry and adjust gc as necessary. */
1.1 nicm 642: char *
1.47 nicm 643: status_print(
644: struct client *c, struct winlink *wl, time_t t, struct grid_cell *gc)
1.1 nicm 645: {
1.33 nicm 646: struct options *oo = &wl->window->options;
1.47 nicm 647: struct session *s = c->session;
648: const char *fmt;
649: char *text;
1.33 nicm 650: u_char fg, bg, attr;
1.1 nicm 651:
1.33 nicm 652: fg = options_get_number(oo, "window-status-fg");
1.1 nicm 653: if (fg != 8)
1.33 nicm 654: colour_set_fg(gc, fg);
655: bg = options_get_number(oo, "window-status-bg");
1.1 nicm 656: if (bg != 8)
1.33 nicm 657: colour_set_bg(gc, bg);
658: attr = options_get_number(oo, "window-status-attr");
1.1 nicm 659: if (attr != 0)
660: gc->attr = attr;
1.47 nicm 661: fmt = options_get_string(oo, "window-status-format");
1.14 nicm 662: if (wl == s->curw) {
1.33 nicm 663: fg = options_get_number(oo, "window-status-current-fg");
1.14 nicm 664: if (fg != 8)
1.33 nicm 665: colour_set_fg(gc, fg);
666: bg = options_get_number(oo, "window-status-current-bg");
1.14 nicm 667: if (bg != 8)
1.33 nicm 668: colour_set_bg(gc, bg);
669: attr = options_get_number(oo, "window-status-current-attr");
1.14 nicm 670: if (attr != 0)
671: gc->attr = attr;
1.47 nicm 672: fmt = options_get_string(oo, "window-status-current-format");
1.14 nicm 673: }
1.1 nicm 674:
1.63 nicm 675: if (wl->flags & WINLINK_ALERTFLAGS) {
1.62 nicm 676: fg = options_get_number(oo, "window-status-alert-fg");
677: if (fg != 8)
678: colour_set_fg(gc, fg);
679: bg = options_get_number(oo, "window-status-alert-bg");
680: if (bg != 8)
681: colour_set_bg(gc, bg);
682: attr = options_get_number(oo, "window-status-alert-attr");
683: if (attr != 0)
684: gc->attr = attr;
685: }
1.1 nicm 686:
1.72 nicm 687: text = status_replace(c, NULL, wl, NULL, fmt, t, 1);
1.1 nicm 688: return (text);
689: }
690:
1.46 nicm 691: /* Set a status line message. */
1.10 nicm 692: void printflike2
693: status_message_set(struct client *c, const char *fmt, ...)
1.1 nicm 694: {
1.44 nicm 695: struct timeval tv;
696: struct session *s = c->session;
697: struct message_entry *msg;
698: va_list ap;
699: int delay;
700: u_int i, limit;
1.1 nicm 701:
1.12 nicm 702: status_prompt_clear(c);
703: status_message_clear(c);
704:
1.28 nicm 705: va_start(ap, fmt);
706: xvasprintf(&c->message_string, fmt, ap);
707: va_end(ap);
708:
1.44 nicm 709: ARRAY_EXPAND(&c->message_log, 1);
710: msg = &ARRAY_LAST(&c->message_log);
711: msg->msg_time = time(NULL);
712: msg->msg = xstrdup(c->message_string);
713:
714: if (s == NULL)
715: limit = 0;
716: else
717: limit = options_get_number(&s->options, "message-limit");
1.50 nicm 718: if (ARRAY_LENGTH(&c->message_log) > limit) {
719: limit = ARRAY_LENGTH(&c->message_log) - limit;
720: for (i = 0; i < limit; i++) {
721: msg = &ARRAY_FIRST(&c->message_log);
722: xfree(msg->msg);
723: ARRAY_REMOVE(&c->message_log, 0);
724: }
1.44 nicm 725: }
726:
1.1 nicm 727: delay = options_get_number(&c->session->options, "display-time");
728: tv.tv_sec = delay / 1000;
729: tv.tv_usec = (delay % 1000) * 1000L;
1.44 nicm 730:
1.42 nicm 731: evtimer_del(&c->message_timer);
732: evtimer_set(&c->message_timer, status_message_callback, c);
733: evtimer_add(&c->message_timer, &tv);
1.1 nicm 734:
735: c->tty.flags |= (TTY_NOCURSOR|TTY_FREEZE);
736: c->flags |= CLIENT_STATUS;
737: }
738:
1.46 nicm 739: /* Clear status line message. */
1.1 nicm 740: void
741: status_message_clear(struct client *c)
742: {
743: if (c->message_string == NULL)
744: return;
745:
746: xfree(c->message_string);
747: c->message_string = NULL;
748:
749: c->tty.flags &= ~(TTY_NOCURSOR|TTY_FREEZE);
1.12 nicm 750: c->flags |= CLIENT_REDRAW; /* screen was frozen and may have changed */
1.7 nicm 751:
752: screen_reinit(&c->status);
1.42 nicm 753: }
754:
1.46 nicm 755: /* Clear status line message after timer expires. */
1.52 nicm 756: /* ARGSUSED */
1.42 nicm 757: void
758: status_message_callback(unused int fd, unused short event, void *data)
759: {
760: struct client *c = data;
761:
762: status_message_clear(c);
1.1 nicm 763: }
764:
765: /* Draw client message on status line of present else on last line. */
766: int
767: status_message_redraw(struct client *c)
768: {
769: struct screen_write_ctx ctx;
770: struct session *s = c->session;
771: struct screen old_status;
772: size_t len;
773: struct grid_cell gc;
1.51 nicm 774: int utf8flag;
1.1 nicm 775:
776: if (c->tty.sx == 0 || c->tty.sy == 0)
777: return (0);
778: memcpy(&old_status, &c->status, sizeof old_status);
779: screen_init(&c->status, c->tty.sx, 1, 0);
780:
1.51 nicm 781: utf8flag = options_get_number(&s->options, "status-utf8");
782:
783: len = screen_write_strlen(utf8flag, "%s", c->message_string);
1.1 nicm 784: if (len > c->tty.sx)
785: len = c->tty.sx;
786:
787: memcpy(&gc, &grid_default_cell, sizeof gc);
1.33 nicm 788: colour_set_fg(&gc, options_get_number(&s->options, "message-fg"));
789: colour_set_bg(&gc, options_get_number(&s->options, "message-bg"));
1.1 nicm 790: gc.attr |= options_get_number(&s->options, "message-attr");
791:
792: screen_write_start(&ctx, NULL, &c->status);
793:
794: screen_write_cursormove(&ctx, 0, 0);
1.51 nicm 795: screen_write_nputs(&ctx, len, &gc, utf8flag, "%s", c->message_string);
1.1 nicm 796: for (; len < c->tty.sx; len++)
797: screen_write_putc(&ctx, &gc, ' ');
798:
799: screen_write_stop(&ctx);
800:
801: if (grid_compare(c->status.grid, old_status.grid) == 0) {
802: screen_free(&old_status);
803: return (0);
804: }
805: screen_free(&old_status);
806: return (1);
807: }
808:
1.46 nicm 809: /* Enable status line prompt. */
1.1 nicm 810: void
1.12 nicm 811: status_prompt_set(struct client *c, const char *msg,
812: int (*callbackfn)(void *, const char *), void (*freefn)(void *),
813: void *data, int flags)
1.1 nicm 814: {
1.20 nicm 815: int keys;
816:
1.12 nicm 817: status_message_clear(c);
818: status_prompt_clear(c);
819:
1.1 nicm 820: c->prompt_string = xstrdup(msg);
821:
822: c->prompt_buffer = xstrdup("");
823: c->prompt_index = 0;
824:
1.12 nicm 825: c->prompt_callbackfn = callbackfn;
826: c->prompt_freefn = freefn;
1.1 nicm 827: c->prompt_data = data;
828:
829: c->prompt_hindex = 0;
830:
831: c->prompt_flags = flags;
832:
1.20 nicm 833: keys = options_get_number(&c->session->options, "status-keys");
834: if (keys == MODEKEY_EMACS)
1.21 nicm 835: mode_key_init(&c->prompt_mdata, &mode_key_tree_emacs_edit);
1.20 nicm 836: else
1.21 nicm 837: mode_key_init(&c->prompt_mdata, &mode_key_tree_vi_edit);
1.1 nicm 838:
839: c->tty.flags |= (TTY_NOCURSOR|TTY_FREEZE);
840: c->flags |= CLIENT_STATUS;
841: }
842:
1.46 nicm 843: /* Remove status line prompt. */
1.1 nicm 844: void
845: status_prompt_clear(struct client *c)
846: {
1.55 nicm 847: if (c->prompt_string == NULL)
1.1 nicm 848: return;
849:
1.12 nicm 850: if (c->prompt_freefn != NULL && c->prompt_data != NULL)
851: c->prompt_freefn(c->prompt_data);
1.1 nicm 852:
853: xfree(c->prompt_string);
854: c->prompt_string = NULL;
855:
856: xfree(c->prompt_buffer);
857: c->prompt_buffer = NULL;
858:
859: c->tty.flags &= ~(TTY_NOCURSOR|TTY_FREEZE);
1.12 nicm 860: c->flags |= CLIENT_REDRAW; /* screen was frozen and may have changed */
1.7 nicm 861:
862: screen_reinit(&c->status);
1.27 nicm 863: }
864:
1.46 nicm 865: /* Update status line prompt with a new prompt string. */
1.27 nicm 866: void
867: status_prompt_update(struct client *c, const char *msg)
868: {
869: xfree(c->prompt_string);
870: c->prompt_string = xstrdup(msg);
871:
872: *c->prompt_buffer = '\0';
873: c->prompt_index = 0;
874:
875: c->prompt_hindex = 0;
876:
877: c->flags |= CLIENT_STATUS;
1.1 nicm 878: }
879:
880: /* Draw client prompt on status line of present else on last line. */
881: int
882: status_prompt_redraw(struct client *c)
883: {
1.51 nicm 884: struct screen_write_ctx ctx;
1.1 nicm 885: struct session *s = c->session;
886: struct screen old_status;
1.29 nicm 887: size_t i, size, left, len, off;
1.51 nicm 888: struct grid_cell gc, *gcp;
889: int utf8flag;
1.1 nicm 890:
891: if (c->tty.sx == 0 || c->tty.sy == 0)
892: return (0);
893: memcpy(&old_status, &c->status, sizeof old_status);
894: screen_init(&c->status, c->tty.sx, 1, 0);
895:
1.51 nicm 896: utf8flag = options_get_number(&s->options, "status-utf8");
897:
898: len = screen_write_strlen(utf8flag, "%s", c->prompt_string);
1.1 nicm 899: if (len > c->tty.sx)
900: len = c->tty.sx;
1.51 nicm 901: off = 0;
1.1 nicm 902:
903: memcpy(&gc, &grid_default_cell, sizeof gc);
1.33 nicm 904: colour_set_fg(&gc, options_get_number(&s->options, "message-fg"));
905: colour_set_bg(&gc, options_get_number(&s->options, "message-bg"));
1.1 nicm 906: gc.attr |= options_get_number(&s->options, "message-attr");
907:
908: screen_write_start(&ctx, NULL, &c->status);
909:
910: screen_write_cursormove(&ctx, 0, 0);
1.51 nicm 911: screen_write_nputs(&ctx, len, &gc, utf8flag, "%s", c->prompt_string);
1.1 nicm 912:
913: left = c->tty.sx - len;
914: if (left != 0) {
1.51 nicm 915: size = screen_write_strlen(utf8flag, "%s", c->prompt_buffer);
916: if (c->prompt_index >= left) {
1.17 nicm 917: off = c->prompt_index - left + 1;
1.51 nicm 918: if (c->prompt_index == size)
1.1 nicm 919: left--;
920: size = left;
921: }
1.51 nicm 922: screen_write_nputs(
923: &ctx, left, &gc, utf8flag, "%s", c->prompt_buffer + off);
1.1 nicm 924:
1.55 nicm 925: for (i = len + size; i < c->tty.sx; i++)
926: screen_write_putc(&ctx, &gc, ' ');
1.1 nicm 927: }
928:
929: screen_write_stop(&ctx);
1.51 nicm 930:
931: /* Apply fake cursor. */
932: off = len + c->prompt_index - off;
933: gcp = grid_view_get_cell(c->status.grid, off, 0);
934: gcp->attr ^= GRID_ATTR_REVERSE;
1.1 nicm 935:
936: if (grid_compare(c->status.grid, old_status.grid) == 0) {
937: screen_free(&old_status);
938: return (0);
939: }
940: screen_free(&old_status);
941: return (1);
942: }
943:
944: /* Handle keys in prompt. */
945: void
946: status_prompt_key(struct client *c, int key)
947: {
948: struct paste_buffer *pb;
1.30 nicm 949: char *s, *first, *last, word[64], swapc;
1.66 nicm 950: const char *histstr;
1.53 nicm 951: u_char ch;
1.1 nicm 952: size_t size, n, off, idx;
953:
954: size = strlen(c->prompt_buffer);
955: switch (mode_key_lookup(&c->prompt_mdata, key)) {
1.20 nicm 956: case MODEKEYEDIT_CURSORLEFT:
1.1 nicm 957: if (c->prompt_index > 0) {
958: c->prompt_index--;
959: c->flags |= CLIENT_STATUS;
960: }
961: break;
1.20 nicm 962: case MODEKEYEDIT_SWITCHMODEAPPEND:
963: case MODEKEYEDIT_CURSORRIGHT:
1.1 nicm 964: if (c->prompt_index < size) {
965: c->prompt_index++;
966: c->flags |= CLIENT_STATUS;
967: }
968: break;
1.20 nicm 969: case MODEKEYEDIT_STARTOFLINE:
1.1 nicm 970: if (c->prompt_index != 0) {
971: c->prompt_index = 0;
972: c->flags |= CLIENT_STATUS;
973: }
974: break;
1.20 nicm 975: case MODEKEYEDIT_ENDOFLINE:
1.1 nicm 976: if (c->prompt_index != size) {
977: c->prompt_index = size;
978: c->flags |= CLIENT_STATUS;
979: }
980: break;
1.20 nicm 981: case MODEKEYEDIT_COMPLETE:
1.1 nicm 982: if (*c->prompt_buffer == '\0')
983: break;
984:
985: idx = c->prompt_index;
986: if (idx != 0)
987: idx--;
988:
989: /* Find the word we are in. */
990: first = c->prompt_buffer + idx;
991: while (first > c->prompt_buffer && *first != ' ')
992: first--;
993: while (*first == ' ')
994: first++;
995: last = c->prompt_buffer + idx;
996: while (*last != '\0' && *last != ' ')
997: last++;
998: while (*last == ' ')
999: last--;
1000: if (*last != '\0')
1001: last++;
1002: if (last <= first ||
1003: ((size_t) (last - first)) > (sizeof word) - 1)
1004: break;
1005: memcpy(word, first, last - first);
1006: word[last - first] = '\0';
1007:
1008: /* And try to complete it. */
1009: if ((s = status_prompt_complete(word)) == NULL)
1010: break;
1011:
1012: /* Trim out word. */
1013: n = size - (last - c->prompt_buffer) + 1; /* with \0 */
1014: memmove(first, last, n);
1015: size -= last - first;
1016:
1017: /* Insert the new word. */
1.55 nicm 1018: size += strlen(s);
1.1 nicm 1019: off = first - c->prompt_buffer;
1.55 nicm 1020: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + 1);
1.1 nicm 1021: first = c->prompt_buffer + off;
1.55 nicm 1022: memmove(first + strlen(s), first, n);
1023: memcpy(first, s, strlen(s));
1.1 nicm 1024:
1025: c->prompt_index = (first - c->prompt_buffer) + strlen(s);
1.22 nicm 1026: xfree(s);
1.1 nicm 1027:
1028: c->flags |= CLIENT_STATUS;
1029: break;
1.20 nicm 1030: case MODEKEYEDIT_BACKSPACE:
1.1 nicm 1031: if (c->prompt_index != 0) {
1032: if (c->prompt_index == size)
1033: c->prompt_buffer[--c->prompt_index] = '\0';
1034: else {
1035: memmove(c->prompt_buffer + c->prompt_index - 1,
1036: c->prompt_buffer + c->prompt_index,
1037: size + 1 - c->prompt_index);
1038: c->prompt_index--;
1039: }
1040: c->flags |= CLIENT_STATUS;
1041: }
1042: break;
1.55 nicm 1043: case MODEKEYEDIT_DELETE:
1.1 nicm 1044: if (c->prompt_index != size) {
1045: memmove(c->prompt_buffer + c->prompt_index,
1046: c->prompt_buffer + c->prompt_index + 1,
1047: size + 1 - c->prompt_index);
1.18 nicm 1048: c->flags |= CLIENT_STATUS;
1049: }
1.26 nicm 1050: break;
1051: case MODEKEYEDIT_DELETELINE:
1052: *c->prompt_buffer = '\0';
1053: c->prompt_index = 0;
1054: c->flags |= CLIENT_STATUS;
1.18 nicm 1055: break;
1.20 nicm 1056: case MODEKEYEDIT_DELETETOENDOFLINE:
1.18 nicm 1057: if (c->prompt_index < size) {
1058: c->prompt_buffer[c->prompt_index] = '\0';
1.1 nicm 1059: c->flags |= CLIENT_STATUS;
1060: }
1061: break;
1.20 nicm 1062: case MODEKEYEDIT_HISTORYUP:
1.66 nicm 1063: histstr = status_prompt_up_history(&c->prompt_hindex);
1064: if (histstr == NULL)
1.1 nicm 1065: break;
1066: xfree(c->prompt_buffer);
1.66 nicm 1067: c->prompt_buffer = xstrdup(histstr);
1.1 nicm 1068: c->prompt_index = strlen(c->prompt_buffer);
1069: c->flags |= CLIENT_STATUS;
1070: break;
1.20 nicm 1071: case MODEKEYEDIT_HISTORYDOWN:
1.66 nicm 1072: histstr = status_prompt_down_history(&c->prompt_hindex);
1073: if (histstr == NULL)
1.65 nicm 1074: break;
1.1 nicm 1075: xfree(c->prompt_buffer);
1.66 nicm 1076: c->prompt_buffer = xstrdup(histstr);
1.1 nicm 1077: c->prompt_index = strlen(c->prompt_buffer);
1078: c->flags |= CLIENT_STATUS;
1079: break;
1.20 nicm 1080: case MODEKEYEDIT_PASTE:
1.68 nicm 1081: if ((pb = paste_get_top(&global_buffers)) == NULL)
1.1 nicm 1082: break;
1.32 nicm 1083: for (n = 0; n < pb->size; n++) {
1.53 nicm 1084: ch = (u_char) pb->data[n];
1085: if (ch < 32 || ch == 127)
1.32 nicm 1086: break;
1087: }
1.1 nicm 1088:
1089: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + n + 1);
1090: if (c->prompt_index == size) {
1091: memcpy(c->prompt_buffer + c->prompt_index, pb->data, n);
1092: c->prompt_index += n;
1093: c->prompt_buffer[c->prompt_index] = '\0';
1094: } else {
1095: memmove(c->prompt_buffer + c->prompt_index + n,
1096: c->prompt_buffer + c->prompt_index,
1097: size + 1 - c->prompt_index);
1098: memcpy(c->prompt_buffer + c->prompt_index, pb->data, n);
1099: c->prompt_index += n;
1100: }
1101:
1102: c->flags |= CLIENT_STATUS;
1.30 nicm 1103: break;
1104: case MODEKEYEDIT_TRANSPOSECHARS:
1105: idx = c->prompt_index;
1106: if (idx < size)
1107: idx++;
1108: if (idx >= 2) {
1109: swapc = c->prompt_buffer[idx - 2];
1110: c->prompt_buffer[idx - 2] = c->prompt_buffer[idx - 1];
1111: c->prompt_buffer[idx - 1] = swapc;
1112: c->prompt_index = idx;
1113: c->flags |= CLIENT_STATUS;
1114: }
1.1 nicm 1115: break;
1.55 nicm 1116: case MODEKEYEDIT_ENTER:
1.25 nicm 1117: if (*c->prompt_buffer != '\0')
1.65 nicm 1118: status_prompt_add_history(c->prompt_buffer);
1.25 nicm 1119: if (c->prompt_callbackfn(c->prompt_data, c->prompt_buffer) == 0)
1120: status_prompt_clear(c);
1121: break;
1.20 nicm 1122: case MODEKEYEDIT_CANCEL:
1.12 nicm 1123: if (c->prompt_callbackfn(c->prompt_data, NULL) == 0)
1.1 nicm 1124: status_prompt_clear(c);
1125: break;
1.20 nicm 1126: case MODEKEY_OTHER:
1.61 nicm 1127: if ((key & 0xff00) != 0 || key < 32 || key == 127)
1.1 nicm 1128: break;
1129: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + 2);
1130:
1131: if (c->prompt_index == size) {
1132: c->prompt_buffer[c->prompt_index++] = key;
1133: c->prompt_buffer[c->prompt_index] = '\0';
1134: } else {
1135: memmove(c->prompt_buffer + c->prompt_index + 1,
1136: c->prompt_buffer + c->prompt_index,
1137: size + 1 - c->prompt_index);
1138: c->prompt_buffer[c->prompt_index++] = key;
1139: }
1140:
1141: if (c->prompt_flags & PROMPT_SINGLE) {
1.12 nicm 1142: if (c->prompt_callbackfn(
1.1 nicm 1143: c->prompt_data, c->prompt_buffer) == 0)
1144: status_prompt_clear(c);
1145: }
1146:
1147: c->flags |= CLIENT_STATUS;
1148: break;
1149: default:
1150: break;
1151: }
1152: }
1153:
1.65 nicm 1154: /* Get previous line from the history. */
1155: const char *
1156: status_prompt_up_history(u_int *idx)
1157: {
1158: u_int size;
1159:
1160: /*
1161: * History runs from 0 to size - 1.
1162: *
1163: * Index is from 0 to size. Zero is empty.
1164: */
1165:
1166: size = ARRAY_LENGTH(&status_prompt_history);
1167: if (size == 0 || *idx == size)
1168: return (NULL);
1169: (*idx)++;
1170: return (ARRAY_ITEM(&status_prompt_history, size - *idx));
1171: }
1172:
1173: /* Get next line from the history. */
1174: const char *
1175: status_prompt_down_history(u_int *idx)
1176: {
1177: u_int size;
1178:
1179: size = ARRAY_LENGTH(&status_prompt_history);
1180: if (size == 0 || *idx == 0)
1181: return ("");
1182: (*idx)--;
1183: if (*idx == 0)
1184: return ("");
1185: return (ARRAY_ITEM(&status_prompt_history, size - *idx));
1186: }
1187:
1.1 nicm 1188: /* Add line to the history. */
1189: void
1.65 nicm 1190: status_prompt_add_history(const char *line)
1.1 nicm 1191: {
1.65 nicm 1192: u_int size;
1193:
1194: size = ARRAY_LENGTH(&status_prompt_history);
1195: if (size > 0 && strcmp(ARRAY_LAST(&status_prompt_history), line) == 0)
1.1 nicm 1196: return;
1197:
1.65 nicm 1198: if (size == PROMPT_HISTORY) {
1199: xfree(ARRAY_FIRST(&status_prompt_history));
1200: ARRAY_REMOVE(&status_prompt_history, 0);
1.1 nicm 1201: }
1202:
1.65 nicm 1203: ARRAY_ADD(&status_prompt_history, xstrdup(line));
1.1 nicm 1204: }
1205:
1206: /* Complete word. */
1207: char *
1208: status_prompt_complete(const char *s)
1209: {
1.69 nicm 1210: const struct cmd_entry **cmdent;
1211: const struct options_table_entry *oe;
1212: ARRAY_DECL(, const char *) list;
1213: char *prefix, *s2;
1214: u_int i;
1215: size_t j;
1.1 nicm 1216:
1217: if (*s == '\0')
1218: return (NULL);
1219:
1220: /* First, build a list of all the possible matches. */
1221: ARRAY_INIT(&list);
1222: for (cmdent = cmd_table; *cmdent != NULL; cmdent++) {
1223: if (strncmp((*cmdent)->name, s, strlen(s)) == 0)
1224: ARRAY_ADD(&list, (*cmdent)->name);
1.56 nicm 1225: }
1.69 nicm 1226: for (oe = server_options_table; oe->name != NULL; oe++) {
1227: if (strncmp(oe->name, s, strlen(s)) == 0)
1228: ARRAY_ADD(&list, oe->name);
1229: }
1230: for (oe = session_options_table; oe->name != NULL; oe++) {
1231: if (strncmp(oe->name, s, strlen(s)) == 0)
1232: ARRAY_ADD(&list, oe->name);
1233: }
1234: for (oe = window_options_table; oe->name != NULL; oe++) {
1235: if (strncmp(oe->name, s, strlen(s)) == 0)
1236: ARRAY_ADD(&list, oe->name);
1.1 nicm 1237: }
1238:
1239: /* If none, bail now. */
1240: if (ARRAY_LENGTH(&list) == 0) {
1241: ARRAY_FREE(&list);
1242: return (NULL);
1243: }
1244:
1245: /* If an exact match, return it, with a trailing space. */
1246: if (ARRAY_LENGTH(&list) == 1) {
1247: xasprintf(&s2, "%s ", ARRAY_FIRST(&list));
1248: ARRAY_FREE(&list);
1249: return (s2);
1250: }
1251:
1252: /* Now loop through the list and find the longest common prefix. */
1253: prefix = xstrdup(ARRAY_FIRST(&list));
1254: for (i = 1; i < ARRAY_LENGTH(&list); i++) {
1255: s = ARRAY_ITEM(&list, i);
1256:
1257: j = strlen(s);
1258: if (j > strlen(prefix))
1259: j = strlen(prefix);
1260: for (; j > 0; j--) {
1261: if (prefix[j - 1] != s[j - 1])
1262: prefix[j - 1] = '\0';
1263: }
1264: }
1265:
1266: ARRAY_FREE(&list);
1267: return (prefix);
1268: }