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1.15 ! nicm 1: /* $OpenBSD: cmd-find.c,v 1.14 2015/10/22 11:23:00 nicm Exp $ */
1.1 nicm 2:
3: /*
4: * Copyright (c) 2015 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:
21: #include <fnmatch.h>
22: #include <limits.h>
23: #include <stdlib.h>
24: #include <string.h>
25: #include <paths.h>
1.15 ! nicm 26: #include <unistd.h>
1.1 nicm 27:
28: #include "tmux.h"
29:
30: #define CMD_FIND_PREFER_UNATTACHED 0x1
31: #define CMD_FIND_QUIET 0x2
32: #define CMD_FIND_WINDOW_INDEX 0x4
1.8 nicm 33: #define CMD_FIND_DEFAULT_MARKED 0x8
1.9 nicm 34: #define CMD_FIND_EXACT_SESSION 0x10
35: #define CMD_FIND_EXACT_WINDOW 0x20
1.1 nicm 36:
37: enum cmd_find_type {
38: CMD_FIND_PANE,
39: CMD_FIND_WINDOW,
40: CMD_FIND_SESSION,
41: };
42:
43: struct cmd_find_state {
44: struct cmd_q *cmdq;
45: int flags;
46: struct cmd_find_state *current;
47:
48: struct session *s;
49: struct winlink *wl;
50: struct window *w;
51: struct window_pane *wp;
52: int idx;
53: };
54:
1.15 ! nicm 55: struct session *cmd_find_try_TMUX(struct client *, struct window *);
1.1 nicm 56: int cmd_find_client_better(struct client *, struct client *);
57: struct client *cmd_find_best_client(struct client **, u_int);
58: int cmd_find_session_better(struct session *, struct session *,
59: int);
60: struct session *cmd_find_best_session(struct session **, u_int, int);
61: int cmd_find_best_session_with_window(struct cmd_find_state *);
62: int cmd_find_best_winlink_with_window(struct cmd_find_state *);
63:
64: int cmd_find_current_session_with_client(struct cmd_find_state *);
65: int cmd_find_current_session(struct cmd_find_state *);
66: struct client *cmd_find_current_client(struct cmd_q *);
67:
68: const char *cmd_find_map_table(const char *[][2], const char *);
69:
70: int cmd_find_get_session(struct cmd_find_state *, const char *);
71: int cmd_find_get_window(struct cmd_find_state *, const char *);
72: int cmd_find_get_window_with_session(struct cmd_find_state *, const char *);
73: int cmd_find_get_window_with_pane(struct cmd_find_state *);
74: int cmd_find_get_pane(struct cmd_find_state *, const char *);
75: int cmd_find_get_pane_with_session(struct cmd_find_state *, const char *);
76: int cmd_find_get_pane_with_window(struct cmd_find_state *, const char *);
77:
78: void cmd_find_clear_state(struct cmd_find_state *, struct cmd_q *, int);
79: void cmd_find_log_state(const char *, const char *, struct cmd_find_state *);
80:
81: struct cmd_find_state *cmd_find_target(struct cmd_q *, const char *,
82: enum cmd_find_type, int);
83:
84: const char *cmd_find_session_table[][2] = {
85: { NULL, NULL }
86: };
87: const char *cmd_find_window_table[][2] = {
88: { "{start}", "^" },
89: { "{last}", "!" },
90: { "{end}", "$" },
91: { "{next}", "+" },
92: { "{previous}", "-" },
93: { NULL, NULL }
94: };
95: const char *cmd_find_pane_table[][2] = {
96: { "{last}", "!" },
97: { "{next}", "+" },
98: { "{previous}", "-" },
99: { "{top}", "top" },
100: { "{bottom}", "bottom" },
101: { "{left}", "left" },
102: { "{right}", "right" },
103: { "{top-left}", "top-left" },
104: { "{top-right}", "top-right" },
105: { "{bottom-left}", "bottom-left" },
106: { "{bottom-right}", "bottom-right" },
1.12 nicm 107: { "{up-of}", "{up-of}" },
108: { "{down-of}", "{down-of}" },
109: { "{left-of}", "{left-of}" },
110: { "{right-of}", "{right-of}" },
1.1 nicm 111: { NULL, NULL }
112: };
113:
1.15 ! nicm 114: /* Get session from TMUX if present. */
! 115: struct session *
! 116: cmd_find_try_TMUX(struct client *c, struct window *w)
! 117: {
! 118: struct environ_entry *envent;
! 119: char tmp[256];
! 120: long long pid;
! 121: u_int session;
! 122: struct session *s;
! 123:
! 124: envent = environ_find(&c->environ, "TMUX");
! 125: if (envent == NULL)
! 126: return (NULL);
! 127:
! 128: if (sscanf(envent->value, "%255[^,],%lld,%d", tmp, &pid, &session) != 3)
! 129: return (NULL);
! 130: if (pid != getpid())
! 131: return (NULL);
! 132: log_debug("client %d TMUX is %s (session @%u)", c->ibuf.fd,
! 133: envent->value, session);
! 134:
! 135: s = session_find_by_id(session);
! 136: if (s == NULL || (w != NULL && !session_has(s, w)))
! 137: return (NULL);
! 138: return (s);
! 139: }
! 140:
1.1 nicm 141: /* Is this client better? */
142: int
143: cmd_find_client_better(struct client *c, struct client *than)
144: {
145: if (than == NULL)
146: return (1);
147: return (timercmp(&c->activity_time, &than->activity_time, >));
148: }
149:
150: /* Find best client from a list, or all if list is NULL. */
151: struct client *
152: cmd_find_best_client(struct client **clist, u_int csize)
153: {
154: struct client *c_loop, *c;
155: u_int i;
156:
157: c = NULL;
158: if (clist != NULL) {
159: for (i = 0; i < csize; i++) {
1.3 nicm 160: if (clist[i]->session == NULL)
161: continue;
1.1 nicm 162: if (cmd_find_client_better(clist[i], c))
163: c = clist[i];
164: }
165: } else {
166: TAILQ_FOREACH(c_loop, &clients, entry) {
1.3 nicm 167: if (c_loop->session == NULL)
168: continue;
1.1 nicm 169: if (cmd_find_client_better(c_loop, c))
1.2 nicm 170: c = c_loop;
1.1 nicm 171: }
172: }
173: return (c);
174: }
175:
176: /* Is this session better? */
177: int
178: cmd_find_session_better(struct session *s, struct session *than, int flags)
179: {
180: int attached;
181:
182: if (than == NULL)
183: return (1);
184: if (flags & CMD_FIND_PREFER_UNATTACHED) {
185: attached = (~than->flags & SESSION_UNATTACHED);
186: if (attached && (s->flags & SESSION_UNATTACHED))
187: return (1);
188: else if (!attached && (~s->flags & SESSION_UNATTACHED))
189: return (0);
190: }
191: return (timercmp(&s->activity_time, &than->activity_time, >));
192: }
193:
194: /* Find best session from a list, or all if list is NULL. */
195: struct session *
196: cmd_find_best_session(struct session **slist, u_int ssize, int flags)
197: {
198: struct session *s_loop, *s;
199: u_int i;
200:
201: s = NULL;
202: if (slist != NULL) {
203: for (i = 0; i < ssize; i++) {
204: if (cmd_find_session_better(slist[i], s, flags))
205: s = slist[i];
206: }
207: } else {
208: RB_FOREACH(s_loop, sessions, &sessions) {
209: if (cmd_find_session_better(s_loop, s, flags))
210: s = s_loop;
211: }
212: }
213: return (s);
214: }
215:
216: /* Find best session and winlink for window. */
217: int
218: cmd_find_best_session_with_window(struct cmd_find_state *fs)
219: {
220: struct session **slist = NULL;
221: u_int ssize;
222: struct session *s;
223:
1.15 ! nicm 224: if (fs->cmdq->client != NULL) {
! 225: fs->s = cmd_find_try_TMUX(fs->cmdq->client, fs->w);
! 226: if (fs->s != NULL)
! 227: return (cmd_find_best_winlink_with_window(fs));
! 228: }
! 229:
1.1 nicm 230: ssize = 0;
231: RB_FOREACH(s, sessions, &sessions) {
232: if (!session_has(s, fs->w))
233: continue;
1.7 nicm 234: slist = xreallocarray(slist, ssize + 1, sizeof *slist);
1.1 nicm 235: slist[ssize++] = s;
236: }
237: if (ssize == 0)
238: goto fail;
239: fs->s = cmd_find_best_session(slist, ssize, fs->flags);
240: if (fs->s == NULL)
241: goto fail;
1.7 nicm 242: free(slist);
1.1 nicm 243: return (cmd_find_best_winlink_with_window(fs));
244:
245: fail:
246: free(slist);
247: return (-1);
248: }
249:
250: /*
251: * Find the best winlink for a window (the current if it contains the pane,
252: * otherwise the first).
253: */
254: int
255: cmd_find_best_winlink_with_window(struct cmd_find_state *fs)
256: {
257: struct winlink *wl, *wl_loop;
258:
259: wl = NULL;
260: if (fs->s->curw->window == fs->w)
261: wl = fs->s->curw;
262: else {
263: RB_FOREACH(wl_loop, winlinks, &fs->s->windows) {
264: if (wl_loop->window == fs->w) {
265: wl = wl_loop;
266: break;
267: }
268: }
269: }
270: if (wl == NULL)
271: return (-1);
272: fs->wl = wl;
273: fs->idx = fs->wl->idx;
274: return (0);
275: }
276:
277: /* Find current session when we have an unattached client. */
278: int
279: cmd_find_current_session_with_client(struct cmd_find_state *fs)
280: {
281: struct window_pane *wp;
282:
283: /* If this is running in a pane, that's great. */
1.5 nicm 284: if (fs->cmdq->client->tty.path != NULL) {
285: RB_FOREACH(wp, window_pane_tree, &all_window_panes) {
286: if (strcmp(wp->tty, fs->cmdq->client->tty.path) == 0)
287: break;
288: }
289: } else
290: wp = NULL;
1.1 nicm 291:
292: /* Not running in a pane. We know nothing. Find the best session. */
1.14 nicm 293: if (wp == NULL)
294: goto unknown_pane;
1.1 nicm 295:
296: /* We now know the window and pane. */
297: fs->w = wp->window;
298: fs->wp = wp;
299:
300: /* Find the best session and winlink. */
1.14 nicm 301: if (cmd_find_best_session_with_window(fs) != 0) {
302: if (wp != NULL) {
303: /*
304: * The window may have been destroyed but the pane
305: * still on all_window_panes due to something else
306: * holding a reference.
307: */
308: goto unknown_pane;
309: }
310: return (-1);
311: }
312: return (0);
313:
314: unknown_pane:
1.15 ! nicm 315: fs->s = cmd_find_try_TMUX(fs->cmdq->client, NULL);
! 316: if (fs->s == NULL)
! 317: fs->s = cmd_find_best_session(NULL, 0, fs->flags);
1.14 nicm 318: if (fs->s == NULL)
1.1 nicm 319: return (-1);
1.14 nicm 320: fs->wl = fs->s->curw;
321: fs->idx = fs->wl->idx;
322: fs->w = fs->wl->window;
323: fs->wp = fs->w->active;
1.1 nicm 324: return (0);
325: }
326:
327: /*
328: * Work out the best current state. If this function succeeds, the state is
329: * guaranteed to be completely filled in.
330: */
331: int
332: cmd_find_current_session(struct cmd_find_state *fs)
333: {
334: /* If we know the current client, use it. */
335: if (fs->cmdq->client != NULL) {
336: if (fs->cmdq->client->session == NULL)
337: return (cmd_find_current_session_with_client(fs));
338: fs->s = fs->cmdq->client->session;
339: fs->wl = fs->s->curw;
340: fs->idx = fs->wl->idx;
341: fs->w = fs->wl->window;
342: fs->wp = fs->w->active;
343: return (0);
344: }
345:
346: /* We know nothing, find the best session and client. */
347: fs->s = cmd_find_best_session(NULL, 0, fs->flags);
348: if (fs->s == NULL)
349: return (-1);
350: fs->wl = fs->s->curw;
351: fs->idx = fs->wl->idx;
352: fs->w = fs->wl->window;
353: fs->wp = fs->w->active;
354:
355: return (0);
356: }
357:
358: /* Work out the best current client. */
359: struct client *
360: cmd_find_current_client(struct cmd_q *cmdq)
361: {
362: struct cmd_find_state current;
363: struct session *s;
364: struct client *c, **clist = NULL;
365: u_int csize;
366:
367: /* If the queue client has a session, use it. */
368: if (cmdq->client != NULL && cmdq->client->session != NULL)
369: return (cmdq->client);
370:
371: /* Otherwise find the current session. */
372: cmd_find_clear_state(¤t, cmdq, 0);
373: if (cmd_find_current_session(¤t) != 0)
374: return (NULL);
375:
376: /* If it is attached, find the best of it's clients. */
377: s = current.s;
378: if (~s->flags & SESSION_UNATTACHED) {
379: csize = 0;
380: TAILQ_FOREACH(c, &clients, entry) {
381: if (c->session != s)
382: continue;
1.7 nicm 383: clist = xreallocarray(clist, csize + 1, sizeof *clist);
1.1 nicm 384: clist[csize++] = c;
385: }
386: if (csize != 0) {
387: c = cmd_find_best_client(clist, csize);
388: if (c != NULL) {
389: free(clist);
390: return (c);
391: }
392: }
393: free(clist);
394: }
395:
396: /* Otherwise pick best of all clients. */
397: return (cmd_find_best_client(NULL, 0));
398: }
399:
400: /* Maps string in table. */
401: const char *
402: cmd_find_map_table(const char *table[][2], const char *s)
403: {
404: u_int i;
405:
406: for (i = 0; table[i][0] != NULL; i++) {
407: if (strcmp(s, table[i][0]) == 0)
408: return (table[i][1]);
409: }
410: return (s);
411: }
412:
413: /* Find session from string. Fills in s. */
414: int
415: cmd_find_get_session(struct cmd_find_state *fs, const char *session)
416: {
417: struct session *s, *s_loop;
418:
419: log_debug("%s: %s", __func__, session);
420:
421: /* Check for session ids starting with $. */
422: if (*session == '$') {
423: fs->s = session_find_by_id_str(session);
424: if (fs->s == NULL)
425: return (-1);
426: return (0);
427: }
428:
429: /* Look for exactly this session. */
430: fs->s = session_find(session);
431: if (fs->s != NULL)
432: return (0);
433:
1.9 nicm 434: /* Stop now if exact only. */
435: if (fs->flags & CMD_FIND_EXACT_SESSION)
436: return (-1);
437:
1.1 nicm 438: /* Otherwise look for prefix. */
439: s = NULL;
440: RB_FOREACH(s_loop, sessions, &sessions) {
441: if (strncmp(session, s_loop->name, strlen(session)) == 0) {
442: if (s != NULL)
443: return (-1);
444: s = s_loop;
445: }
446: }
447: if (s != NULL) {
448: fs->s = s;
449: return (0);
450: }
451:
452: /* Then as a pattern. */
453: s = NULL;
454: RB_FOREACH(s_loop, sessions, &sessions) {
455: if (fnmatch(session, s_loop->name, 0) == 0) {
456: if (s != NULL)
457: return (-1);
458: s = s_loop;
459: }
460: }
461: if (s != NULL) {
462: fs->s = s;
463: return (0);
464: }
465:
466: return (-1);
467: }
468:
469: /* Find window from string. Fills in s, wl, w. */
470: int
471: cmd_find_get_window(struct cmd_find_state *fs, const char *window)
472: {
473: log_debug("%s: %s", __func__, window);
474:
475: /* Check for window ids starting with @. */
476: if (*window == '@') {
477: fs->w = window_find_by_id_str(window);
478: if (fs->w == NULL)
479: return (-1);
480: return (cmd_find_best_session_with_window(fs));
481: }
482:
483: /* Not a window id, so use the current session. */
484: fs->s = fs->current->s;
485:
486: /* We now only need to find the winlink in this session. */
1.4 nicm 487: if (cmd_find_get_window_with_session(fs, window) == 0)
488: return (0);
489:
490: /* Otherwise try as a session itself. */
491: if (cmd_find_get_session(fs, window) == 0) {
1.6 nicm 492: if (~fs->flags & CMD_FIND_WINDOW_INDEX) {
493: fs->wl = fs->s->curw;
494: fs->w = fs->wl->window;
495: fs->idx = fs->wl->idx;
496: }
1.4 nicm 497: return (0);
498: }
499:
500: return (-1);
1.1 nicm 501: }
502:
503: /*
504: * Find window from string, assuming it is in given session. Needs s, fills in
505: * wl and w.
506: */
507: int
508: cmd_find_get_window_with_session(struct cmd_find_state *fs, const char *window)
509: {
510: struct winlink *wl;
511: const char *errstr;
1.9 nicm 512: int idx, n, exact;
1.1 nicm 513: struct session *s;
514:
515: log_debug("%s: %s", __func__, window);
1.9 nicm 516: exact = (fs->flags & CMD_FIND_EXACT_WINDOW);
1.1 nicm 517:
518: /* Check for window ids starting with @. */
519: if (*window == '@') {
520: fs->w = window_find_by_id_str(window);
521: if (fs->w == NULL || !session_has(fs->s, fs->w))
522: return (-1);
523: return (cmd_find_best_winlink_with_window(fs));
524: }
525:
526: /* Try as an offset. */
1.10 nicm 527: if (!exact && (window[0] == '+' || window[0] == '-')) {
1.1 nicm 528: if (window[1] != '\0')
529: n = strtonum(window + 1, 1, INT_MAX, NULL);
530: else
531: n = 1;
532: s = fs->s;
533: if (fs->flags & CMD_FIND_WINDOW_INDEX) {
534: if (window[0] == '+') {
535: if (INT_MAX - s->curw->idx < n)
536: return (-1);
537: fs->idx = s->curw->idx + n;
538: } else {
539: if (n < s->curw->idx)
540: return (-1);
541: fs->idx = s->curw->idx - n;
542: }
543: return (0);
544: }
545: if (window[0] == '+')
546: fs->wl = winlink_next_by_number(s->curw, s, n);
547: else
548: fs->wl = winlink_previous_by_number(s->curw, s, n);
549: if (fs->wl != NULL) {
550: fs->idx = fs->wl->idx;
551: fs->w = fs->wl->window;
552: return (0);
553: }
554: }
555:
556: /* Try special characters. */
1.9 nicm 557: if (!exact) {
558: if (strcmp(window, "!") == 0) {
559: fs->wl = TAILQ_FIRST(&fs->s->lastw);
560: if (fs->wl == NULL)
561: return (-1);
562: fs->idx = fs->wl->idx;
563: fs->w = fs->wl->window;
564: return (0);
565: } else if (strcmp(window, "^") == 0) {
566: fs->wl = RB_MIN(winlinks, &fs->s->windows);
567: if (fs->wl == NULL)
568: return (-1);
569: fs->idx = fs->wl->idx;
570: fs->w = fs->wl->window;
571: return (0);
572: } else if (strcmp(window, "$") == 0) {
573: fs->wl = RB_MAX(winlinks, &fs->s->windows);
574: if (fs->wl == NULL)
575: return (-1);
576: fs->idx = fs->wl->idx;
577: fs->w = fs->wl->window;
578: return (0);
579: }
1.1 nicm 580: }
581:
582: /* First see if this is a valid window index in this session. */
1.9 nicm 583: if (window[0] != '+' && window[0] != '-') {
584: idx = strtonum(window, 0, INT_MAX, &errstr);
585: if (errstr == NULL) {
586: if (fs->flags & CMD_FIND_WINDOW_INDEX) {
587: fs->idx = idx;
588: return (0);
589: }
590: fs->wl = winlink_find_by_index(&fs->s->windows, idx);
591: if (fs->wl != NULL) {
592: fs->w = fs->wl->window;
593: return (0);
594: }
1.1 nicm 595: }
596: }
597:
598: /* Look for exact matches, error if more than one. */
599: fs->wl = NULL;
600: RB_FOREACH(wl, winlinks, &fs->s->windows) {
601: if (strcmp(window, wl->window->name) == 0) {
602: if (fs->wl != NULL)
603: return (-1);
604: fs->wl = wl;
605: }
606: }
607: if (fs->wl != NULL) {
608: fs->idx = fs->wl->idx;
609: fs->w = fs->wl->window;
610: return (0);
611: }
1.9 nicm 612:
613: /* Stop now if exact only. */
614: if (exact)
615: return (-1);
616:
1.1 nicm 617: /* Try as the start of a window name, error if multiple. */
618: fs->wl = NULL;
619: RB_FOREACH(wl, winlinks, &fs->s->windows) {
620: if (strncmp(window, wl->window->name, strlen(window)) == 0) {
621: if (fs->wl != NULL)
622: return (-1);
623: fs->wl = wl;
624: }
625: }
626: if (fs->wl != NULL) {
627: fs->idx = fs->wl->idx;
628: fs->w = fs->wl->window;
629: return (0);
630: }
631:
632: /* Now look for pattern matches, again error if multiple. */
633: fs->wl = NULL;
634: RB_FOREACH(wl, winlinks, &fs->s->windows) {
635: if (fnmatch(window, wl->window->name, 0) == 0) {
636: if (fs->wl != NULL)
637: return (-1);
638: fs->wl = wl;
639: }
640: }
641: if (fs->wl != NULL) {
642: fs->idx = fs->wl->idx;
643: fs->w = fs->wl->window;
644: return (0);
645: }
646:
647: return (-1);
648: }
649:
650: /* Find window from given pane. Needs wp, fills in s and wl and w. */
651: int
652: cmd_find_get_window_with_pane(struct cmd_find_state *fs)
653: {
654: log_debug("%s", __func__);
655:
656: fs->w = fs->wp->window;
657: return (cmd_find_best_session_with_window(fs));
658: }
659:
660: /* Find pane from string. Fills in s, wl, w, wp. */
661: int
662: cmd_find_get_pane(struct cmd_find_state *fs, const char *pane)
663: {
664: log_debug("%s: %s", __func__, pane);
665:
666: /* Check for pane ids starting with %. */
667: if (*pane == '%') {
668: fs->wp = window_pane_find_by_id_str(pane);
669: if (fs->wp == NULL)
670: return (-1);
671: fs->w = fs->wp->window;
672: return (cmd_find_best_session_with_window(fs));
673: }
674:
1.4 nicm 675: /* Not a pane id, so try the current session and window. */
1.1 nicm 676: fs->s = fs->current->s;
677: fs->wl = fs->current->wl;
678: fs->idx = fs->current->idx;
679: fs->w = fs->current->w;
680:
681: /* We now only need to find the pane in this window. */
1.4 nicm 682: if (cmd_find_get_pane_with_window(fs, pane) == 0)
683: return (0);
684:
685: /* Otherwise try as a window itself (this will also try as session). */
686: if (cmd_find_get_window(fs, pane) == 0) {
687: fs->wp = fs->w->active;
688: return (0);
689: }
690:
691: return (-1);
1.1 nicm 692: }
693:
694: /*
695: * Find pane from string, assuming it is in given session. Needs s, fills in wl
696: * and w and wp.
697: */
698: int
699: cmd_find_get_pane_with_session(struct cmd_find_state *fs, const char *pane)
700: {
701: log_debug("%s: %s", __func__, pane);
702:
703: /* Check for pane ids starting with %. */
704: if (*pane == '%') {
705: fs->wp = window_pane_find_by_id_str(pane);
706: if (fs->wp == NULL)
707: return (-1);
708: fs->w = fs->wp->window;
709: return (cmd_find_best_winlink_with_window(fs));
710: }
711:
712: /* Otherwise use the current window. */
713: fs->wl = fs->s->curw;
714: fs->idx = fs->wl->idx;
715: fs->w = fs->wl->window;
716:
717: /* Now we just need to look up the pane. */
718: return (cmd_find_get_pane_with_window(fs, pane));
719: }
720:
721: /*
722: * Find pane from string, assuming it is in the given window. Needs w, fills in
723: * wp.
724: */
725: int
726: cmd_find_get_pane_with_window(struct cmd_find_state *fs, const char *pane)
727: {
728: const char *errstr;
729: int idx;
730: struct window_pane *wp;
731: u_int n;
732:
733: log_debug("%s: %s", __func__, pane);
734:
735: /* Check for pane ids starting with %. */
736: if (*pane == '%') {
737: fs->wp = window_pane_find_by_id_str(pane);
738: if (fs->wp == NULL || fs->wp->window != fs->w)
739: return (-1);
740: return (0);
741: }
742:
743: /* Try special characters. */
744: if (strcmp(pane, "!") == 0) {
745: if (fs->w->last == NULL)
746: return (-1);
747: fs->wp = fs->w->last;
748: return (0);
1.12 nicm 749: } else if (strcmp(pane, "{up-of}") == 0) {
1.1 nicm 750: fs->wp = window_pane_find_up(fs->w->active);
751: if (fs->wp == NULL)
752: return (-1);
753: return (0);
1.12 nicm 754: } else if (strcmp(pane, "{down-of}") == 0) {
1.1 nicm 755: fs->wp = window_pane_find_down(fs->w->active);
756: if (fs->wp == NULL)
757: return (-1);
758: return (0);
1.12 nicm 759: } else if (strcmp(pane, "{left-of}") == 0) {
1.1 nicm 760: fs->wp = window_pane_find_left(fs->w->active);
761: if (fs->wp == NULL)
762: return (-1);
763: return (0);
1.12 nicm 764: } else if (strcmp(pane, "{right-of}") == 0) {
1.1 nicm 765: fs->wp = window_pane_find_right(fs->w->active);
766: if (fs->wp == NULL)
767: return (-1);
768: return (0);
769: }
770:
771: /* Try as an offset. */
772: if (pane[0] == '+' || pane[0] == '-') {
773: if (pane[1] != '\0')
774: n = strtonum(pane + 1, 1, INT_MAX, NULL);
775: else
776: n = 1;
777: wp = fs->w->active;
778: if (pane[0] == '+')
779: fs->wp = window_pane_next_by_number(fs->w, wp, n);
780: else
781: fs->wp = window_pane_previous_by_number(fs->w, wp, n);
782: if (fs->wp != NULL)
783: return (0);
784: }
785:
786: /* Get pane by index. */
787: idx = strtonum(pane, 0, INT_MAX, &errstr);
788: if (errstr == NULL) {
789: fs->wp = window_pane_at_index(fs->w, idx);
790: if (fs->wp != NULL)
791: return (0);
792: }
793:
794: /* Try as a description. */
795: fs->wp = window_find_string(fs->w, pane);
796: if (fs->wp != NULL)
797: return (0);
798:
799: return (-1);
800: }
801:
802: /* Clear state. */
803: void
804: cmd_find_clear_state(struct cmd_find_state *fs, struct cmd_q *cmdq, int flags)
805: {
1.7 nicm 806: memset(fs, 0, sizeof *fs);
1.1 nicm 807:
808: fs->cmdq = cmdq;
809: fs->flags = flags;
810:
811: fs->idx = -1;
812: }
813:
814: /* Split target into pieces and resolve for the given type. */
815: struct cmd_find_state *
816: cmd_find_target(struct cmd_q *cmdq, const char *target, enum cmd_find_type type,
817: int flags)
818: {
819: static struct cmd_find_state fs, current;
820: struct mouse_event *m;
821: char *colon, *period, *copy = NULL;
822: const char *session, *window, *pane;
823:
824: /* Find current state. */
825: cmd_find_clear_state(¤t, cmdq, flags);
1.8 nicm 826: if (server_check_marked() && (flags & CMD_FIND_DEFAULT_MARKED)) {
827: current.s = marked_session;
828: current.wl = marked_winlink;
829: current.idx = current.wl->idx;
830: current.w = current.wl->window;
831: current.wp = marked_window_pane;
832: }
833: if (current.s == NULL && cmd_find_current_session(¤t) != 0) {
1.1 nicm 834: if (~flags & CMD_FIND_QUIET)
835: cmdq_error(cmdq, "no current session");
836: goto error;
837: }
838:
839: /* Clear new state. */
840: cmd_find_clear_state(&fs, cmdq, flags);
841: fs.current = ¤t;
842:
843: /* An empty or NULL target is the current. */
844: if (target == NULL || *target == '\0')
845: goto current;
846:
847: /* Mouse target is a plain = or {mouse}. */
848: if (strcmp(target, "=") == 0 || strcmp(target, "{mouse}") == 0) {
849: m = &cmdq->item->mouse;
850: switch (type) {
851: case CMD_FIND_PANE:
852: fs.wp = cmd_mouse_pane(m, &fs.s, &fs.wl);
853: if (fs.wp != NULL)
854: fs.w = fs.wl->window;
855: break;
856: case CMD_FIND_WINDOW:
857: case CMD_FIND_SESSION:
858: fs.wl = cmd_mouse_window(m, &fs.s);
859: if (fs.wl != NULL) {
860: fs.w = fs.wl->window;
861: fs.wp = fs.w->active;
862: }
863: break;
864: }
865: if (fs.wp == NULL) {
866: if (~flags & CMD_FIND_QUIET)
867: cmdq_error(cmdq, "no mouse target");
868: goto error;
869: }
870: return (&fs);
871: }
1.8 nicm 872:
873: /* Marked target is a plain ~ or {marked}. */
874: if (strcmp(target, "~") == 0 || strcmp(target, "{marked}") == 0) {
875: if (!server_check_marked()) {
876: if (~flags & CMD_FIND_QUIET)
877: cmdq_error(cmdq, "no marked target");
878: goto error;
879: }
880: fs.s = marked_session;
881: fs.wl = marked_winlink;
882: fs.idx = fs.wl->idx;
883: fs.w = fs.wl->window;
884: fs.wp = marked_window_pane;
885: return (&fs);
886: }
1.1 nicm 887:
888: /* Find separators if they exist. */
1.8 nicm 889: copy = xstrdup(target);
1.1 nicm 890: colon = strchr(copy, ':');
891: if (colon != NULL)
892: *colon++ = '\0';
893: if (colon == NULL)
894: period = strchr(copy, '.');
895: else
896: period = strchr(colon, '.');
897: if (period != NULL)
898: *period++ = '\0';
899:
900: /* Set session, window and pane parts. */
901: session = window = pane = NULL;
902: if (colon != NULL && period != NULL) {
903: session = copy;
904: window = colon;
905: pane = period;
906: } else if (colon != NULL && period == NULL) {
907: session = copy;
908: window = colon;
909: } else if (colon == NULL && period != NULL) {
910: window = copy;
911: pane = period;
912: } else {
913: if (*copy == '$')
914: session = copy;
915: else if (*copy == '@')
916: window = copy;
917: else if (*copy == '%')
918: pane = copy;
919: else {
920: switch (type) {
921: case CMD_FIND_SESSION:
922: session = copy;
923: break;
924: case CMD_FIND_WINDOW:
925: window = copy;
926: break;
927: case CMD_FIND_PANE:
928: pane = copy;
929: break;
930: }
931: }
1.9 nicm 932: }
933:
934: /* Set exact match flags. */
935: if (session != NULL && *session == '=') {
936: session++;
937: fs.flags |= CMD_FIND_EXACT_SESSION;
938: }
939: if (window != NULL && *window == '=') {
940: window++;
941: fs.flags |= CMD_FIND_EXACT_WINDOW;
1.1 nicm 942: }
943:
944: /* Empty is the same as NULL. */
945: if (session != NULL && *session == '\0')
946: session = NULL;
947: if (window != NULL && *window == '\0')
948: window = NULL;
949: if (pane != NULL && *pane == '\0')
950: pane = NULL;
951:
952: /* Map though conversion table. */
953: if (session != NULL)
954: session = cmd_find_map_table(cmd_find_session_table, session);
955: if (window != NULL)
956: window = cmd_find_map_table(cmd_find_window_table, window);
957: if (pane != NULL)
958: pane = cmd_find_map_table(cmd_find_pane_table, pane);
959:
960: log_debug("target %s (flags %#x): session=%s, window=%s, pane=%s",
961: target, flags, session == NULL ? "none" : session,
962: window == NULL ? "none" : window, pane == NULL ? "none" : pane);
963:
964: /* No pane is allowed if want an index. */
965: if (pane != NULL && (flags & CMD_FIND_WINDOW_INDEX)) {
966: if (~flags & CMD_FIND_QUIET)
967: cmdq_error(cmdq, "can't specify pane here");
968: goto error;
969: }
970:
971: /* If the session isn't NULL, look it up. */
972: if (session != NULL) {
973: /* This will fill in session. */
974: if (cmd_find_get_session(&fs, session) != 0)
975: goto no_session;
976:
977: /* If window and pane are NULL, use that session's current. */
978: if (window == NULL && pane == NULL) {
979: fs.wl = fs.s->curw;
980: fs.idx = -1;
981: fs.w = fs.wl->window;
982: fs.wp = fs.w->active;
983: goto found;
984: }
985:
986: /* If window is present but pane not, find window in session. */
987: if (window != NULL && pane == NULL) {
988: /* This will fill in winlink and window. */
989: if (cmd_find_get_window_with_session(&fs, window) != 0)
990: goto no_window;
991: if (~flags & CMD_FIND_WINDOW_INDEX)
992: fs.wp = fs.wl->window->active;
993: goto found;
994: }
995:
996: /* If pane is present but window not, find pane. */
997: if (window == NULL && pane != NULL) {
998: /* This will fill in winlink and window and pane. */
999: if (cmd_find_get_pane_with_session(&fs, pane) != 0)
1000: goto no_pane;
1001: goto found;
1002: }
1003:
1004: /*
1005: * If window and pane are present, find both in session. This
1006: * will fill in winlink and window.
1007: */
1008: if (cmd_find_get_window_with_session(&fs, window) != 0)
1009: goto no_window;
1010: /* This will fill in pane. */
1011: if (cmd_find_get_pane_with_window(&fs, pane) != 0)
1012: goto no_pane;
1013: goto found;
1014: }
1015:
1016: /* No session. If window and pane, try them. */
1017: if (window != NULL && pane != NULL) {
1018: /* This will fill in session, winlink and window. */
1019: if (cmd_find_get_window(&fs, window) != 0)
1020: goto no_window;
1021: /* This will fill in pane. */
1022: if (cmd_find_get_pane_with_window(&fs, pane) != 0)
1023: goto no_pane;
1024: goto found;
1025: }
1026:
1027: /* If just window is present, try it. */
1028: if (window != NULL && pane == NULL) {
1029: /* This will fill in session, winlink and window. */
1030: if (cmd_find_get_window(&fs, window) != 0)
1031: goto no_window;
1032: if (~flags & CMD_FIND_WINDOW_INDEX)
1033: fs.wp = fs.wl->window->active;
1034: goto found;
1035: }
1036:
1037: /* If just pane is present, try it. */
1038: if (window == NULL && pane != NULL) {
1039: /* This will fill in session, winlink, window and pane. */
1040: if (cmd_find_get_pane(&fs, pane) != 0)
1041: goto no_pane;
1042: goto found;
1043: }
1044:
1045: current:
1046: /* None is the current session. */
1047: free(copy);
1048: if (flags & CMD_FIND_WINDOW_INDEX)
1049: current.idx = -1;
1050: return (¤t);
1051:
1052: error:
1053: free(copy);
1054: return (NULL);
1055:
1056: found:
1057: free(copy);
1058: return (&fs);
1059:
1060: no_session:
1061: if (~flags & CMD_FIND_QUIET)
1062: cmdq_error(cmdq, "can't find session %s", session);
1063: goto error;
1064:
1065: no_window:
1066: if (~flags & CMD_FIND_QUIET)
1067: cmdq_error(cmdq, "can't find window %s", window);
1068: goto error;
1069:
1070: no_pane:
1071: if (~flags & CMD_FIND_QUIET)
1072: cmdq_error(cmdq, "can't find pane %s", pane);
1073: goto error;
1074: }
1075:
1076: /* Log the result. */
1077: void
1078: cmd_find_log_state(const char *f, const char *target, struct cmd_find_state *fs)
1079: {
1080: log_debug("%s: target %s%s", f, target == NULL ? "none" : target,
1081: fs != NULL ? "" : " (failed)");
1082: if (fs == NULL)
1083: return;
1084: if (fs->s != NULL)
1085: log_debug("\ts=$%u", fs->s->id);
1086: else
1087: log_debug("\ts=none");
1088: if (fs->wl != NULL) {
1089: log_debug("\twl=%u %d w=@%u %s", fs->wl->idx,
1090: fs->wl->window == fs->w, fs->w->id, fs->w->name);
1091: } else
1092: log_debug("\twl=none");
1093: if (fs->wp != NULL)
1094: log_debug("\twp=%%%u", fs->wp->id);
1095: else
1096: log_debug("\twp=none");
1097: if (fs->idx != -1)
1098: log_debug("\tidx=%d", fs->idx);
1099: else
1100: log_debug("\tidx=none");
1101: }
1102:
1103: /* Find the current session. */
1104: struct session *
1105: cmd_find_current(struct cmd_q *cmdq)
1106: {
1107: struct cmd_find_state *fs;
1108: int flags = CMD_FIND_QUIET;
1109:
1110: fs = cmd_find_target(cmdq, NULL, CMD_FIND_SESSION, flags);
1111: cmd_find_log_state(__func__, NULL, fs);
1112: if (fs == NULL)
1113: return (NULL);
1114:
1115: return (fs->s);
1116: }
1117:
1118: /* Find the target session or report an error and return NULL. */
1119: struct session *
1120: cmd_find_session(struct cmd_q *cmdq, const char *target, int prefer_unattached)
1121: {
1122: struct cmd_find_state *fs;
1123: int flags = 0;
1124:
1125: if (prefer_unattached)
1126: flags |= CMD_FIND_PREFER_UNATTACHED;
1127:
1128: fs = cmd_find_target(cmdq, target, CMD_FIND_SESSION, flags);
1129: cmd_find_log_state(__func__, target, fs);
1130: if (fs == NULL)
1131: return (NULL);
1132:
1133: return (fs->s);
1134: }
1135:
1136: /* Find the target window or report an error and return NULL. */
1137: struct winlink *
1138: cmd_find_window(struct cmd_q *cmdq, const char *target, struct session **sp)
1139: {
1140: struct cmd_find_state *fs;
1141:
1142: fs = cmd_find_target(cmdq, target, CMD_FIND_WINDOW, 0);
1143: cmd_find_log_state(__func__, target, fs);
1144: if (fs == NULL)
1145: return (NULL);
1146:
1147: if (sp != NULL)
1148: *sp = fs->s;
1149: return (fs->wl);
1150: }
1151:
1.8 nicm 1152: /* Find the target window, defaulting to marked rather than current. */
1153: struct winlink *
1154: cmd_find_window_marked(struct cmd_q *cmdq, const char *target,
1155: struct session **sp)
1156: {
1157: struct cmd_find_state *fs;
1158: int flags = CMD_FIND_DEFAULT_MARKED;
1159:
1160: fs = cmd_find_target(cmdq, target, CMD_FIND_WINDOW, flags);
1161: cmd_find_log_state(__func__, target, fs);
1162: if (fs == NULL)
1163: return (NULL);
1164:
1165: if (sp != NULL)
1166: *sp = fs->s;
1167: return (fs->wl);
1168: }
1169:
1.1 nicm 1170: /* Find the target pane and report an error and return NULL. */
1171: struct winlink *
1172: cmd_find_pane(struct cmd_q *cmdq, const char *target, struct session **sp,
1173: struct window_pane **wpp)
1174: {
1175: struct cmd_find_state *fs;
1176:
1177: fs = cmd_find_target(cmdq, target, CMD_FIND_PANE, 0);
1.8 nicm 1178: cmd_find_log_state(__func__, target, fs);
1179: if (fs == NULL)
1180: return (NULL);
1181:
1182: if (sp != NULL)
1183: *sp = fs->s;
1184: if (wpp != NULL)
1185: *wpp = fs->wp;
1186: return (fs->wl);
1187: }
1188:
1189: /* Find the target pane, defaulting to marked rather than current. */
1190: struct winlink *
1191: cmd_find_pane_marked(struct cmd_q *cmdq, const char *target,
1192: struct session **sp, struct window_pane **wpp)
1193: {
1194: struct cmd_find_state *fs;
1195: int flags = CMD_FIND_DEFAULT_MARKED;
1196:
1197: fs = cmd_find_target(cmdq, target, CMD_FIND_PANE, flags);
1.1 nicm 1198: cmd_find_log_state(__func__, target, fs);
1199: if (fs == NULL)
1200: return (NULL);
1201:
1202: if (sp != NULL)
1203: *sp = fs->s;
1204: if (wpp != NULL)
1205: *wpp = fs->wp;
1206: return (fs->wl);
1207: }
1208:
1209: /* Find the target client or report an error and return NULL. */
1210: struct client *
1211: cmd_find_client(struct cmd_q *cmdq, const char *target, int quiet)
1212: {
1213: struct client *c;
1214: char *copy;
1215: size_t size;
1216: const char *path;
1217:
1218: /* A NULL argument means the current client. */
1219: if (target == NULL) {
1220: c = cmd_find_current_client(cmdq);
1221: if (c == NULL && !quiet)
1222: cmdq_error(cmdq, "no current client");
1223: return (c);
1224: }
1225: copy = xstrdup(target);
1226:
1227: /* Trim a single trailing colon if any. */
1228: size = strlen(copy);
1229: if (size != 0 && copy[size - 1] == ':')
1230: copy[size - 1] = '\0';
1231:
1232: /* Check path of each client. */
1233: TAILQ_FOREACH(c, &clients, entry) {
1234: if (c->session == NULL || c->tty.path == NULL)
1235: continue;
1236: path = c->tty.path;
1237:
1238: /* Try for exact match. */
1239: if (strcmp(copy, path) == 0)
1240: break;
1241:
1242: /* Try without leading /dev. */
1243: if (strncmp(path, _PATH_DEV, (sizeof _PATH_DEV) - 1) != 0)
1244: continue;
1245: if (strcmp(copy, path + (sizeof _PATH_DEV) - 1) == 0)
1246: break;
1247: }
1248:
1249: /* If no client found, report an error. */
1250: if (c == NULL && !quiet)
1251: cmdq_error(cmdq, "can't find client %s", copy);
1252:
1253: free(copy);
1254: return (c);
1255: }
1256:
1257: /*
1258: * Find the target session and window index, whether or not it exists in the
1259: * session. Return -2 on error or -1 if no window index is specified. This is
1260: * used when parsing an argument for a window target that may not exist (for
1261: * example if it is going to be created).
1262: */
1263: int
1264: cmd_find_index(struct cmd_q *cmdq, const char *target, struct session **sp)
1265: {
1266: struct cmd_find_state *fs;
1267: int flags = CMD_FIND_WINDOW_INDEX;
1268:
1269: fs = cmd_find_target(cmdq, target, CMD_FIND_WINDOW, flags);
1270: cmd_find_log_state(__func__, target, fs);
1271: if (fs == NULL)
1272: return (-2);
1273:
1274: if (sp != NULL)
1275: *sp = fs->s;
1276: return (fs->idx);
1277: }