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1.3 ! nicm 1: /* $OpenBSD: cmd-find.c,v 1.2 2015/04/27 22:42:10 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>
26:
27: #include "tmux.h"
28:
29: #define CMD_FIND_PREFER_UNATTACHED 0x1
30: #define CMD_FIND_QUIET 0x2
31: #define CMD_FIND_WINDOW_INDEX 0x4
32:
33: enum cmd_find_type {
34: CMD_FIND_PANE,
35: CMD_FIND_WINDOW,
36: CMD_FIND_SESSION,
37: };
38:
39: struct cmd_find_state {
40: struct cmd_q *cmdq;
41: int flags;
42: struct cmd_find_state *current;
43:
44: struct session *s;
45: struct winlink *wl;
46: struct window *w;
47: struct window_pane *wp;
48: int idx;
49: };
50:
51: int cmd_find_client_better(struct client *, struct client *);
52: struct client *cmd_find_best_client(struct client **, u_int);
53: int cmd_find_session_better(struct session *, struct session *,
54: int);
55: struct session *cmd_find_best_session(struct session **, u_int, int);
56: int cmd_find_best_session_with_window(struct cmd_find_state *);
57: int cmd_find_best_winlink_with_window(struct cmd_find_state *);
58:
59: int cmd_find_current_session_with_client(struct cmd_find_state *);
60: int cmd_find_current_session(struct cmd_find_state *);
61: struct client *cmd_find_current_client(struct cmd_q *);
62:
63: const char *cmd_find_map_table(const char *[][2], const char *);
64:
65: int cmd_find_get_session(struct cmd_find_state *, const char *);
66: int cmd_find_get_window(struct cmd_find_state *, const char *);
67: int cmd_find_get_window_with_session(struct cmd_find_state *, const char *);
68: int cmd_find_get_window_with_pane(struct cmd_find_state *);
69: int cmd_find_get_pane(struct cmd_find_state *, const char *);
70: int cmd_find_get_pane_with_session(struct cmd_find_state *, const char *);
71: int cmd_find_get_pane_with_window(struct cmd_find_state *, const char *);
72:
73: void cmd_find_clear_state(struct cmd_find_state *, struct cmd_q *, int);
74: void cmd_find_log_state(const char *, const char *, struct cmd_find_state *);
75:
76: struct cmd_find_state *cmd_find_target(struct cmd_q *, const char *,
77: enum cmd_find_type, int);
78:
79: const char *cmd_find_session_table[][2] = {
80: { NULL, NULL }
81: };
82: const char *cmd_find_window_table[][2] = {
83: { "{start}", "^" },
84: { "{last}", "!" },
85: { "{end}", "$" },
86: { "{next}", "+" },
87: { "{previous}", "-" },
88: { NULL, NULL }
89: };
90: const char *cmd_find_pane_table[][2] = {
91: { "{last}", "!" },
92: { "{next}", "+" },
93: { "{previous}", "-" },
94: { "{top}", "top" },
95: { "{bottom}", "bottom" },
96: { "{left}", "left" },
97: { "{right}", "right" },
98: { "{top-left}", "top-left" },
99: { "{top-right}", "top-right" },
100: { "{bottom-left}", "bottom-left" },
101: { "{bottom-right}", "bottom-right" },
102: { "{up}", "{up}" },
103: { "{down}", "{down}" },
104: { "{left}", "{left}" },
105: { "{right}", "{right}" },
106: { NULL, NULL }
107: };
108:
109: /* Is this client better? */
110: int
111: cmd_find_client_better(struct client *c, struct client *than)
112: {
113: if (than == NULL)
114: return (1);
115: return (timercmp(&c->activity_time, &than->activity_time, >));
116: }
117:
118: /* Find best client from a list, or all if list is NULL. */
119: struct client *
120: cmd_find_best_client(struct client **clist, u_int csize)
121: {
122: struct client *c_loop, *c;
123: u_int i;
124:
125: c = NULL;
126: if (clist != NULL) {
127: for (i = 0; i < csize; i++) {
1.3 ! nicm 128: if (clist[i]->session == NULL)
! 129: continue;
1.1 nicm 130: if (cmd_find_client_better(clist[i], c))
131: c = clist[i];
132: }
133: } else {
134: TAILQ_FOREACH(c_loop, &clients, entry) {
1.3 ! nicm 135: if (c_loop->session == NULL)
! 136: continue;
1.1 nicm 137: if (cmd_find_client_better(c_loop, c))
1.2 nicm 138: c = c_loop;
1.1 nicm 139: }
140: }
141: return (c);
142: }
143:
144: /* Is this session better? */
145: int
146: cmd_find_session_better(struct session *s, struct session *than, int flags)
147: {
148: int attached;
149:
150: if (than == NULL)
151: return (1);
152: if (flags & CMD_FIND_PREFER_UNATTACHED) {
153: attached = (~than->flags & SESSION_UNATTACHED);
154: if (attached && (s->flags & SESSION_UNATTACHED))
155: return (1);
156: else if (!attached && (~s->flags & SESSION_UNATTACHED))
157: return (0);
158: }
159: return (timercmp(&s->activity_time, &than->activity_time, >));
160: }
161:
162: /* Find best session from a list, or all if list is NULL. */
163: struct session *
164: cmd_find_best_session(struct session **slist, u_int ssize, int flags)
165: {
166: struct session *s_loop, *s;
167: u_int i;
168:
169: s = NULL;
170: if (slist != NULL) {
171: for (i = 0; i < ssize; i++) {
172: if (cmd_find_session_better(slist[i], s, flags))
173: s = slist[i];
174: }
175: } else {
176: RB_FOREACH(s_loop, sessions, &sessions) {
177: if (cmd_find_session_better(s_loop, s, flags))
178: s = s_loop;
179: }
180: }
181: return (s);
182: }
183:
184: /* Find best session and winlink for window. */
185: int
186: cmd_find_best_session_with_window(struct cmd_find_state *fs)
187: {
188: struct session **slist = NULL;
189: u_int ssize;
190: struct session *s;
191:
192: ssize = 0;
193: RB_FOREACH(s, sessions, &sessions) {
194: if (!session_has(s, fs->w))
195: continue;
196: slist = xreallocarray (slist, ssize + 1, sizeof *slist);
197: slist[ssize++] = s;
198: }
199: if (ssize == 0)
200: goto fail;
201: fs->s = cmd_find_best_session(slist, ssize, fs->flags);
202: if (fs->s == NULL)
203: goto fail;
204: free (slist);
205: return (cmd_find_best_winlink_with_window(fs));
206:
207: fail:
208: free(slist);
209: return (-1);
210: }
211:
212: /*
213: * Find the best winlink for a window (the current if it contains the pane,
214: * otherwise the first).
215: */
216: int
217: cmd_find_best_winlink_with_window(struct cmd_find_state *fs)
218: {
219: struct winlink *wl, *wl_loop;
220:
221: wl = NULL;
222: if (fs->s->curw->window == fs->w)
223: wl = fs->s->curw;
224: else {
225: RB_FOREACH(wl_loop, winlinks, &fs->s->windows) {
226: if (wl_loop->window == fs->w) {
227: wl = wl_loop;
228: break;
229: }
230: }
231: }
232: if (wl == NULL)
233: return (-1);
234: fs->wl = wl;
235: fs->idx = fs->wl->idx;
236: return (0);
237: }
238:
239: /* Find current session when we have an unattached client. */
240: int
241: cmd_find_current_session_with_client(struct cmd_find_state *fs)
242: {
243: struct window_pane *wp;
244:
245: /* If this is running in a pane, that's great. */
246: RB_FOREACH(wp, window_pane_tree, &all_window_panes) {
247: if (strcmp(wp->tty, fs->cmdq->client->tty.path) == 0)
248: break;
249: }
250:
251: /* Not running in a pane. We know nothing. Find the best session. */
252: if (wp == NULL) {
253: fs->s = cmd_find_best_session(NULL, 0, fs->flags);
254: if (fs->s == NULL)
255: return (-1);
256: fs->wl = fs->s->curw;
257: fs->idx = fs->wl->idx;
258: fs->w = fs->wl->window;
259: fs->wp = fs->w->active;
260: return (0);
261: }
262:
263: /* We now know the window and pane. */
264: fs->w = wp->window;
265: fs->wp = wp;
266:
267: /* Find the best session and winlink. */
268: if (cmd_find_best_session_with_window(fs) != 0)
269: return (-1);
270: return (0);
271: }
272:
273: /*
274: * Work out the best current state. If this function succeeds, the state is
275: * guaranteed to be completely filled in.
276: */
277: int
278: cmd_find_current_session(struct cmd_find_state *fs)
279: {
280: /* If we know the current client, use it. */
281: if (fs->cmdq->client != NULL) {
282: if (fs->cmdq->client->session == NULL)
283: return (cmd_find_current_session_with_client(fs));
284: fs->s = fs->cmdq->client->session;
285: fs->wl = fs->s->curw;
286: fs->idx = fs->wl->idx;
287: fs->w = fs->wl->window;
288: fs->wp = fs->w->active;
289: return (0);
290: }
291:
292: /* We know nothing, find the best session and client. */
293: fs->s = cmd_find_best_session(NULL, 0, fs->flags);
294: if (fs->s == NULL)
295: return (-1);
296: fs->wl = fs->s->curw;
297: fs->idx = fs->wl->idx;
298: fs->w = fs->wl->window;
299: fs->wp = fs->w->active;
300:
301: return (0);
302: }
303:
304: /* Work out the best current client. */
305: struct client *
306: cmd_find_current_client(struct cmd_q *cmdq)
307: {
308: struct cmd_find_state current;
309: struct session *s;
310: struct client *c, **clist = NULL;
311: u_int csize;
312:
313: /* If the queue client has a session, use it. */
314: if (cmdq->client != NULL && cmdq->client->session != NULL)
315: return (cmdq->client);
316:
317: /* Otherwise find the current session. */
318: cmd_find_clear_state(¤t, cmdq, 0);
319: if (cmd_find_current_session(¤t) != 0)
320: return (NULL);
321:
322: /* If it is attached, find the best of it's clients. */
323: s = current.s;
324: if (~s->flags & SESSION_UNATTACHED) {
325: csize = 0;
326: TAILQ_FOREACH(c, &clients, entry) {
327: if (c->session != s)
328: continue;
329: clist = xreallocarray (clist, csize + 1, sizeof *clist);
330: clist[csize++] = c;
331: }
332: if (csize != 0) {
333: c = cmd_find_best_client(clist, csize);
334: if (c != NULL) {
335: free(clist);
336: return (c);
337: }
338: }
339: free(clist);
340: }
341:
342: /* Otherwise pick best of all clients. */
343: return (cmd_find_best_client(NULL, 0));
344: }
345:
346: /* Maps string in table. */
347: const char *
348: cmd_find_map_table(const char *table[][2], const char *s)
349: {
350: u_int i;
351:
352: for (i = 0; table[i][0] != NULL; i++) {
353: if (strcmp(s, table[i][0]) == 0)
354: return (table[i][1]);
355: }
356: return (s);
357: }
358:
359: /* Find session from string. Fills in s. */
360: int
361: cmd_find_get_session(struct cmd_find_state *fs, const char *session)
362: {
363: struct session *s, *s_loop;
364:
365: log_debug("%s: %s", __func__, session);
366:
367: /* Check for session ids starting with $. */
368: if (*session == '$') {
369: fs->s = session_find_by_id_str(session);
370: if (fs->s == NULL)
371: return (-1);
372: return (0);
373: }
374:
375: /* Look for exactly this session. */
376: fs->s = session_find(session);
377: if (fs->s != NULL)
378: return (0);
379:
380: /* Otherwise look for prefix. */
381: s = NULL;
382: RB_FOREACH(s_loop, sessions, &sessions) {
383: if (strncmp(session, s_loop->name, strlen(session)) == 0) {
384: if (s != NULL)
385: return (-1);
386: s = s_loop;
387: }
388: }
389: if (s != NULL) {
390: fs->s = s;
391: return (0);
392: }
393:
394: /* Then as a pattern. */
395: s = NULL;
396: RB_FOREACH(s_loop, sessions, &sessions) {
397: if (fnmatch(session, s_loop->name, 0) == 0) {
398: if (s != NULL)
399: return (-1);
400: s = s_loop;
401: }
402: }
403: if (s != NULL) {
404: fs->s = s;
405: return (0);
406: }
407:
408: return (-1);
409: }
410:
411: /* Find window from string. Fills in s, wl, w. */
412: int
413: cmd_find_get_window(struct cmd_find_state *fs, const char *window)
414: {
415: log_debug("%s: %s", __func__, window);
416:
417: /* Check for window ids starting with @. */
418: if (*window == '@') {
419: fs->w = window_find_by_id_str(window);
420: if (fs->w == NULL)
421: return (-1);
422: return (cmd_find_best_session_with_window(fs));
423: }
424:
425: /* Not a window id, so use the current session. */
426: fs->s = fs->current->s;
427:
428: /* We now only need to find the winlink in this session. */
429: return (cmd_find_get_window_with_session(fs, window));
430: }
431:
432: /*
433: * Find window from string, assuming it is in given session. Needs s, fills in
434: * wl and w.
435: */
436: int
437: cmd_find_get_window_with_session(struct cmd_find_state *fs, const char *window)
438: {
439: struct winlink *wl;
440: const char *errstr;
441: int idx, n;
442: struct session *s;
443:
444: log_debug("%s: %s", __func__, window);
445:
446: /* Check for window ids starting with @. */
447: if (*window == '@') {
448: fs->w = window_find_by_id_str(window);
449: if (fs->w == NULL || !session_has(fs->s, fs->w))
450: return (-1);
451: return (cmd_find_best_winlink_with_window(fs));
452: }
453:
454: /* Try as an offset. */
455: if (window[0] == '+' || window[0] == '-') {
456: if (window[1] != '\0')
457: n = strtonum(window + 1, 1, INT_MAX, NULL);
458: else
459: n = 1;
460: s = fs->s;
461: if (fs->flags & CMD_FIND_WINDOW_INDEX) {
462: if (window[0] == '+') {
463: if (INT_MAX - s->curw->idx < n)
464: return (-1);
465: fs->idx = s->curw->idx + n;
466: } else {
467: if (n < s->curw->idx)
468: return (-1);
469: fs->idx = s->curw->idx - n;
470: }
471: return (0);
472: }
473: if (window[0] == '+')
474: fs->wl = winlink_next_by_number(s->curw, s, n);
475: else
476: fs->wl = winlink_previous_by_number(s->curw, s, n);
477: if (fs->wl != NULL) {
478: fs->idx = fs->wl->idx;
479: fs->w = fs->wl->window;
480: return (0);
481: }
482: }
483:
484: /* Try special characters. */
485: if (strcmp(window, "!") == 0) {
486: fs->wl = TAILQ_FIRST(&fs->s->lastw);
487: if (fs->wl == NULL)
488: return (-1);
489: fs->idx = fs->wl->idx;
490: fs->w = fs->wl->window;
491: return (0);
492: } else if (strcmp(window, "^") == 0) {
493: fs->wl = RB_MIN(winlinks, &fs->s->windows);
494: if (fs->wl == NULL)
495: return (-1);
496: fs->idx = fs->wl->idx;
497: fs->w = fs->wl->window;
498: return (0);
499: } else if (strcmp(window, "$") == 0) {
500: fs->wl = RB_MAX(winlinks, &fs->s->windows);
501: if (fs->wl == NULL)
502: return (-1);
503: fs->idx = fs->wl->idx;
504: fs->w = fs->wl->window;
505: return (0);
506: }
507:
508: /* First see if this is a valid window index in this session. */
509: idx = strtonum(window, 0, INT_MAX, &errstr);
510: if (errstr == NULL) {
511: if (fs->flags & CMD_FIND_WINDOW_INDEX) {
512: fs->idx = idx;
513: return (0);
514: }
515: fs->wl = winlink_find_by_index(&fs->s->windows, idx);
516: if (fs->wl != NULL) {
517: fs->w = fs->wl->window;
518: return (0);
519: }
520: }
521:
522: /* Look for exact matches, error if more than one. */
523: fs->wl = NULL;
524: RB_FOREACH(wl, winlinks, &fs->s->windows) {
525: if (strcmp(window, wl->window->name) == 0) {
526: if (fs->wl != NULL)
527: return (-1);
528: fs->wl = wl;
529: }
530: }
531: if (fs->wl != NULL) {
532: fs->idx = fs->wl->idx;
533: fs->w = fs->wl->window;
534: return (0);
535: }
536:
537: /* Try as the start of a window name, error if multiple. */
538: fs->wl = NULL;
539: RB_FOREACH(wl, winlinks, &fs->s->windows) {
540: if (strncmp(window, wl->window->name, strlen(window)) == 0) {
541: if (fs->wl != NULL)
542: return (-1);
543: fs->wl = wl;
544: }
545: }
546: if (fs->wl != NULL) {
547: fs->idx = fs->wl->idx;
548: fs->w = fs->wl->window;
549: return (0);
550: }
551:
552: /* Now look for pattern matches, again error if multiple. */
553: fs->wl = NULL;
554: RB_FOREACH(wl, winlinks, &fs->s->windows) {
555: if (fnmatch(window, wl->window->name, 0) == 0) {
556: if (fs->wl != NULL)
557: return (-1);
558: fs->wl = wl;
559: }
560: }
561: if (fs->wl != NULL) {
562: fs->idx = fs->wl->idx;
563: fs->w = fs->wl->window;
564: return (0);
565: }
566:
567: return (-1);
568: }
569:
570: /* Find window from given pane. Needs wp, fills in s and wl and w. */
571: int
572: cmd_find_get_window_with_pane(struct cmd_find_state *fs)
573: {
574: log_debug("%s", __func__);
575:
576: fs->w = fs->wp->window;
577: return (cmd_find_best_session_with_window(fs));
578: }
579:
580: /* Find pane from string. Fills in s, wl, w, wp. */
581: int
582: cmd_find_get_pane(struct cmd_find_state *fs, const char *pane)
583: {
584: log_debug("%s: %s", __func__, pane);
585:
586: /* Check for pane ids starting with %. */
587: if (*pane == '%') {
588: fs->wp = window_pane_find_by_id_str(pane);
589: if (fs->wp == NULL)
590: return (-1);
591: fs->w = fs->wp->window;
592: return (cmd_find_best_session_with_window(fs));
593: }
594:
595: /* Not a pane id, so use the current session and window. */
596: fs->s = fs->current->s;
597: fs->wl = fs->current->wl;
598: fs->idx = fs->current->idx;
599: fs->w = fs->current->w;
600:
601: /* We now only need to find the pane in this window. */
602: return (cmd_find_get_pane_with_window(fs, pane));
603: }
604:
605: /*
606: * Find pane from string, assuming it is in given session. Needs s, fills in wl
607: * and w and wp.
608: */
609: int
610: cmd_find_get_pane_with_session(struct cmd_find_state *fs, const char *pane)
611: {
612: log_debug("%s: %s", __func__, pane);
613:
614: /* Check for pane ids starting with %. */
615: if (*pane == '%') {
616: fs->wp = window_pane_find_by_id_str(pane);
617: if (fs->wp == NULL)
618: return (-1);
619: fs->w = fs->wp->window;
620: return (cmd_find_best_winlink_with_window(fs));
621: }
622:
623: /* Otherwise use the current window. */
624: fs->wl = fs->s->curw;
625: fs->idx = fs->wl->idx;
626: fs->w = fs->wl->window;
627:
628: /* Now we just need to look up the pane. */
629: return (cmd_find_get_pane_with_window(fs, pane));
630: }
631:
632: /*
633: * Find pane from string, assuming it is in the given window. Needs w, fills in
634: * wp.
635: */
636: int
637: cmd_find_get_pane_with_window(struct cmd_find_state *fs, const char *pane)
638: {
639: const char *errstr;
640: int idx;
641: struct window_pane *wp;
642: u_int n;
643:
644: log_debug("%s: %s", __func__, pane);
645:
646: /* Check for pane ids starting with %. */
647: if (*pane == '%') {
648: fs->wp = window_pane_find_by_id_str(pane);
649: if (fs->wp == NULL || fs->wp->window != fs->w)
650: return (-1);
651: return (0);
652: }
653:
654: /* Try special characters. */
655: if (strcmp(pane, "!") == 0) {
656: if (fs->w->last == NULL)
657: return (-1);
658: fs->wp = fs->w->last;
659: return (0);
660: } else if (strcmp(pane, "{up}") == 0) {
661: fs->wp = window_pane_find_up(fs->w->active);
662: if (fs->wp == NULL)
663: return (-1);
664: return (0);
665: } else if (strcmp(pane, "{down}") == 0) {
666: fs->wp = window_pane_find_down(fs->w->active);
667: if (fs->wp == NULL)
668: return (-1);
669: return (0);
670: } else if (strcmp(pane, "{left}") == 0) {
671: fs->wp = window_pane_find_left(fs->w->active);
672: if (fs->wp == NULL)
673: return (-1);
674: return (0);
675: } else if (strcmp(pane, "{right}") == 0) {
676: fs->wp = window_pane_find_right(fs->w->active);
677: if (fs->wp == NULL)
678: return (-1);
679: return (0);
680: }
681:
682: /* Try as an offset. */
683: if (pane[0] == '+' || pane[0] == '-') {
684: if (pane[1] != '\0')
685: n = strtonum(pane + 1, 1, INT_MAX, NULL);
686: else
687: n = 1;
688: wp = fs->w->active;
689: if (pane[0] == '+')
690: fs->wp = window_pane_next_by_number(fs->w, wp, n);
691: else
692: fs->wp = window_pane_previous_by_number(fs->w, wp, n);
693: if (fs->wp != NULL)
694: return (0);
695: }
696:
697: /* Get pane by index. */
698: idx = strtonum(pane, 0, INT_MAX, &errstr);
699: if (errstr == NULL) {
700: fs->wp = window_pane_at_index(fs->w, idx);
701: if (fs->wp != NULL)
702: return (0);
703: }
704:
705: /* Try as a description. */
706: fs->wp = window_find_string(fs->w, pane);
707: if (fs->wp != NULL)
708: return (0);
709:
710: return (-1);
711: }
712:
713: /* Clear state. */
714: void
715: cmd_find_clear_state(struct cmd_find_state *fs, struct cmd_q *cmdq, int flags)
716: {
717: memset (fs, 0, sizeof *fs);
718:
719: fs->cmdq = cmdq;
720: fs->flags = flags;
721:
722: fs->idx = -1;
723: }
724:
725: /* Split target into pieces and resolve for the given type. */
726: struct cmd_find_state *
727: cmd_find_target(struct cmd_q *cmdq, const char *target, enum cmd_find_type type,
728: int flags)
729: {
730: static struct cmd_find_state fs, current;
731: struct mouse_event *m;
732: char *colon, *period, *copy = NULL;
733: const char *session, *window, *pane;
734:
735: /* Find current state. */
736: cmd_find_clear_state(¤t, cmdq, flags);
737: if (cmd_find_current_session(¤t) != 0) {
738: if (~flags & CMD_FIND_QUIET)
739: cmdq_error(cmdq, "no current session");
740: goto error;
741: }
742:
743: /* Clear new state. */
744: cmd_find_clear_state(&fs, cmdq, flags);
745: fs.current = ¤t;
746:
747: /* An empty or NULL target is the current. */
748: if (target == NULL || *target == '\0')
749: goto current;
750:
751: /* Mouse target is a plain = or {mouse}. */
752: if (strcmp(target, "=") == 0 || strcmp(target, "{mouse}") == 0) {
753: m = &cmdq->item->mouse;
754: switch (type) {
755: case CMD_FIND_PANE:
756: fs.wp = cmd_mouse_pane(m, &fs.s, &fs.wl);
757: if (fs.wp != NULL)
758: fs.w = fs.wl->window;
759: break;
760: case CMD_FIND_WINDOW:
761: case CMD_FIND_SESSION:
762: fs.wl = cmd_mouse_window(m, &fs.s);
763: if (fs.wl != NULL) {
764: fs.w = fs.wl->window;
765: fs.wp = fs.w->active;
766: }
767: break;
768: }
769: if (fs.wp == NULL) {
770: if (~flags & CMD_FIND_QUIET)
771: cmdq_error(cmdq, "no mouse target");
772: goto error;
773: }
774: return (&fs);
775: }
776: copy = xstrdup(target);
777:
778: /* Find separators if they exist. */
779: colon = strchr(copy, ':');
780: if (colon != NULL)
781: *colon++ = '\0';
782: if (colon == NULL)
783: period = strchr(copy, '.');
784: else
785: period = strchr(colon, '.');
786: if (period != NULL)
787: *period++ = '\0';
788:
789: /* Set session, window and pane parts. */
790: session = window = pane = NULL;
791: if (colon != NULL && period != NULL) {
792: session = copy;
793: window = colon;
794: pane = period;
795: } else if (colon != NULL && period == NULL) {
796: session = copy;
797: window = colon;
798: } else if (colon == NULL && period != NULL) {
799: window = copy;
800: pane = period;
801: } else {
802: if (*copy == '$')
803: session = copy;
804: else if (*copy == '@')
805: window = copy;
806: else if (*copy == '%')
807: pane = copy;
808: else {
809: switch (type) {
810: case CMD_FIND_SESSION:
811: session = copy;
812: break;
813: case CMD_FIND_WINDOW:
814: window = copy;
815: break;
816: case CMD_FIND_PANE:
817: pane = copy;
818: break;
819: }
820: }
821: }
822:
823: /* Empty is the same as NULL. */
824: if (session != NULL && *session == '\0')
825: session = NULL;
826: if (window != NULL && *window == '\0')
827: window = NULL;
828: if (pane != NULL && *pane == '\0')
829: pane = NULL;
830:
831: /* Map though conversion table. */
832: if (session != NULL)
833: session = cmd_find_map_table(cmd_find_session_table, session);
834: if (window != NULL)
835: window = cmd_find_map_table(cmd_find_window_table, window);
836: if (pane != NULL)
837: pane = cmd_find_map_table(cmd_find_pane_table, pane);
838:
839: log_debug("target %s (flags %#x): session=%s, window=%s, pane=%s",
840: target, flags, session == NULL ? "none" : session,
841: window == NULL ? "none" : window, pane == NULL ? "none" : pane);
842:
843: /* No pane is allowed if want an index. */
844: if (pane != NULL && (flags & CMD_FIND_WINDOW_INDEX)) {
845: if (~flags & CMD_FIND_QUIET)
846: cmdq_error(cmdq, "can't specify pane here");
847: goto error;
848: }
849:
850: /* If the session isn't NULL, look it up. */
851: if (session != NULL) {
852: /* This will fill in session. */
853: if (cmd_find_get_session(&fs, session) != 0)
854: goto no_session;
855:
856: /* If window and pane are NULL, use that session's current. */
857: if (window == NULL && pane == NULL) {
858: fs.wl = fs.s->curw;
859: fs.idx = -1;
860: fs.w = fs.wl->window;
861: fs.wp = fs.w->active;
862: goto found;
863: }
864:
865: /* If window is present but pane not, find window in session. */
866: if (window != NULL && pane == NULL) {
867: /* This will fill in winlink and window. */
868: if (cmd_find_get_window_with_session(&fs, window) != 0)
869: goto no_window;
870: if (~flags & CMD_FIND_WINDOW_INDEX)
871: fs.wp = fs.wl->window->active;
872: goto found;
873: }
874:
875: /* If pane is present but window not, find pane. */
876: if (window == NULL && pane != NULL) {
877: /* This will fill in winlink and window and pane. */
878: if (cmd_find_get_pane_with_session(&fs, pane) != 0)
879: goto no_pane;
880: goto found;
881: }
882:
883: /*
884: * If window and pane are present, find both in session. This
885: * will fill in winlink and window.
886: */
887: if (cmd_find_get_window_with_session(&fs, window) != 0)
888: goto no_window;
889: /* This will fill in pane. */
890: if (cmd_find_get_pane_with_window(&fs, pane) != 0)
891: goto no_pane;
892: goto found;
893: }
894:
895: /* No session. If window and pane, try them. */
896: if (window != NULL && pane != NULL) {
897: /* This will fill in session, winlink and window. */
898: if (cmd_find_get_window(&fs, window) != 0)
899: goto no_window;
900: /* This will fill in pane. */
901: if (cmd_find_get_pane_with_window(&fs, pane) != 0)
902: goto no_pane;
903: goto found;
904: }
905:
906: /* If just window is present, try it. */
907: if (window != NULL && pane == NULL) {
908: /* This will fill in session, winlink and window. */
909: if (cmd_find_get_window(&fs, window) != 0)
910: goto no_window;
911: if (~flags & CMD_FIND_WINDOW_INDEX)
912: fs.wp = fs.wl->window->active;
913: goto found;
914: }
915:
916: /* If just pane is present, try it. */
917: if (window == NULL && pane != NULL) {
918: /* This will fill in session, winlink, window and pane. */
919: if (cmd_find_get_pane(&fs, pane) != 0)
920: goto no_pane;
921: goto found;
922: }
923:
924: current:
925: /* None is the current session. */
926: free(copy);
927: if (flags & CMD_FIND_WINDOW_INDEX)
928: current.idx = -1;
929: return (¤t);
930:
931: error:
932: free(copy);
933: return (NULL);
934:
935: found:
936: free(copy);
937: return (&fs);
938:
939: no_session:
940: if (~flags & CMD_FIND_QUIET)
941: cmdq_error(cmdq, "can't find session %s", session);
942: goto error;
943:
944: no_window:
945: if (~flags & CMD_FIND_QUIET)
946: cmdq_error(cmdq, "can't find window %s", window);
947: goto error;
948:
949: no_pane:
950: if (~flags & CMD_FIND_QUIET)
951: cmdq_error(cmdq, "can't find pane %s", pane);
952: goto error;
953: }
954:
955: /* Log the result. */
956: void
957: cmd_find_log_state(const char *f, const char *target, struct cmd_find_state *fs)
958: {
959: log_debug("%s: target %s%s", f, target == NULL ? "none" : target,
960: fs != NULL ? "" : " (failed)");
961: if (fs == NULL)
962: return;
963: if (fs->s != NULL)
964: log_debug("\ts=$%u", fs->s->id);
965: else
966: log_debug("\ts=none");
967: if (fs->wl != NULL) {
968: log_debug("\twl=%u %d w=@%u %s", fs->wl->idx,
969: fs->wl->window == fs->w, fs->w->id, fs->w->name);
970: } else
971: log_debug("\twl=none");
972: if (fs->wp != NULL)
973: log_debug("\twp=%%%u", fs->wp->id);
974: else
975: log_debug("\twp=none");
976: if (fs->idx != -1)
977: log_debug("\tidx=%d", fs->idx);
978: else
979: log_debug("\tidx=none");
980: }
981:
982: /* Find the current session. */
983: struct session *
984: cmd_find_current(struct cmd_q *cmdq)
985: {
986: struct cmd_find_state *fs;
987: int flags = CMD_FIND_QUIET;
988:
989: fs = cmd_find_target(cmdq, NULL, CMD_FIND_SESSION, flags);
990: cmd_find_log_state(__func__, NULL, fs);
991: if (fs == NULL)
992: return (NULL);
993:
994: return (fs->s);
995: }
996:
997: /* Find the target session or report an error and return NULL. */
998: struct session *
999: cmd_find_session(struct cmd_q *cmdq, const char *target, int prefer_unattached)
1000: {
1001: struct cmd_find_state *fs;
1002: int flags = 0;
1003:
1004: if (prefer_unattached)
1005: flags |= CMD_FIND_PREFER_UNATTACHED;
1006:
1007: fs = cmd_find_target(cmdq, target, CMD_FIND_SESSION, flags);
1008: cmd_find_log_state(__func__, target, fs);
1009: if (fs == NULL)
1010: return (NULL);
1011:
1012: return (fs->s);
1013: }
1014:
1015: /* Find the target window or report an error and return NULL. */
1016: struct winlink *
1017: cmd_find_window(struct cmd_q *cmdq, const char *target, struct session **sp)
1018: {
1019: struct cmd_find_state *fs;
1020:
1021: fs = cmd_find_target(cmdq, target, CMD_FIND_WINDOW, 0);
1022: cmd_find_log_state(__func__, target, fs);
1023: if (fs == NULL)
1024: return (NULL);
1025:
1026: if (sp != NULL)
1027: *sp = fs->s;
1028: return (fs->wl);
1029: }
1030:
1031: /* Find the target pane and report an error and return NULL. */
1032: struct winlink *
1033: cmd_find_pane(struct cmd_q *cmdq, const char *target, struct session **sp,
1034: struct window_pane **wpp)
1035: {
1036: struct cmd_find_state *fs;
1037:
1038: fs = cmd_find_target(cmdq, target, CMD_FIND_PANE, 0);
1039: cmd_find_log_state(__func__, target, fs);
1040: if (fs == NULL)
1041: return (NULL);
1042:
1043: if (sp != NULL)
1044: *sp = fs->s;
1045: if (wpp != NULL)
1046: *wpp = fs->wp;
1047: return (fs->wl);
1048: }
1049:
1050: /* Find the target client or report an error and return NULL. */
1051: struct client *
1052: cmd_find_client(struct cmd_q *cmdq, const char *target, int quiet)
1053: {
1054: struct client *c;
1055: char *copy;
1056: size_t size;
1057: const char *path;
1058:
1059: /* A NULL argument means the current client. */
1060: if (target == NULL) {
1061: c = cmd_find_current_client(cmdq);
1062: if (c == NULL && !quiet)
1063: cmdq_error(cmdq, "no current client");
1064: return (c);
1065: }
1066: copy = xstrdup(target);
1067:
1068: /* Trim a single trailing colon if any. */
1069: size = strlen(copy);
1070: if (size != 0 && copy[size - 1] == ':')
1071: copy[size - 1] = '\0';
1072:
1073: /* Check path of each client. */
1074: TAILQ_FOREACH(c, &clients, entry) {
1075: if (c->session == NULL || c->tty.path == NULL)
1076: continue;
1077: path = c->tty.path;
1078:
1079: /* Try for exact match. */
1080: if (strcmp(copy, path) == 0)
1081: break;
1082:
1083: /* Try without leading /dev. */
1084: if (strncmp(path, _PATH_DEV, (sizeof _PATH_DEV) - 1) != 0)
1085: continue;
1086: if (strcmp(copy, path + (sizeof _PATH_DEV) - 1) == 0)
1087: break;
1088: }
1089:
1090: /* If no client found, report an error. */
1091: if (c == NULL && !quiet)
1092: cmdq_error(cmdq, "can't find client %s", copy);
1093:
1094: free(copy);
1095: return (c);
1096: }
1097:
1098: /*
1099: * Find the target session and window index, whether or not it exists in the
1100: * session. Return -2 on error or -1 if no window index is specified. This is
1101: * used when parsing an argument for a window target that may not exist (for
1102: * example if it is going to be created).
1103: */
1104: int
1105: cmd_find_index(struct cmd_q *cmdq, const char *target, struct session **sp)
1106: {
1107: struct cmd_find_state *fs;
1108: int flags = CMD_FIND_WINDOW_INDEX;
1109:
1110: fs = cmd_find_target(cmdq, target, CMD_FIND_WINDOW, flags);
1111: cmd_find_log_state(__func__, target, fs);
1112: if (fs == NULL)
1113: return (-2);
1114:
1115: if (sp != NULL)
1116: *sp = fs->s;
1117: return (fs->idx);
1118: }