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1.13 ! nicm 1: /* $OpenBSD: cmd-find.c,v 1.12 2015/08/13 15:02:23 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
1.8 nicm 32: #define CMD_FIND_DEFAULT_MARKED 0x8
1.9 nicm 33: #define CMD_FIND_EXACT_SESSION 0x10
34: #define CMD_FIND_EXACT_WINDOW 0x20
1.1 nicm 35:
36: enum cmd_find_type {
37: CMD_FIND_PANE,
38: CMD_FIND_WINDOW,
39: CMD_FIND_SESSION,
40: };
41:
42: struct cmd_find_state {
43: struct cmd_q *cmdq;
44: int flags;
45: struct cmd_find_state *current;
46:
47: struct session *s;
48: struct winlink *wl;
49: struct window *w;
50: struct window_pane *wp;
51: int idx;
52: };
53:
54: int cmd_find_client_better(struct client *, struct client *);
55: struct client *cmd_find_best_client(struct client **, u_int);
56: int cmd_find_session_better(struct session *, struct session *,
57: int);
58: struct session *cmd_find_best_session(struct session **, u_int, int);
59: int cmd_find_best_session_with_window(struct cmd_find_state *);
60: int cmd_find_best_winlink_with_window(struct cmd_find_state *);
61:
62: int cmd_find_current_session_with_client(struct cmd_find_state *);
63: int cmd_find_current_session(struct cmd_find_state *);
64: struct client *cmd_find_current_client(struct cmd_q *);
65:
66: const char *cmd_find_map_table(const char *[][2], const char *);
67:
68: int cmd_find_get_session(struct cmd_find_state *, const char *);
69: int cmd_find_get_window(struct cmd_find_state *, const char *);
70: int cmd_find_get_window_with_session(struct cmd_find_state *, const char *);
71: int cmd_find_get_window_with_pane(struct cmd_find_state *);
72: int cmd_find_get_pane(struct cmd_find_state *, const char *);
73: int cmd_find_get_pane_with_session(struct cmd_find_state *, const char *);
74: int cmd_find_get_pane_with_window(struct cmd_find_state *, const char *);
75:
76: void cmd_find_clear_state(struct cmd_find_state *, struct cmd_q *, int);
77: void cmd_find_log_state(const char *, const char *, struct cmd_find_state *);
78:
79: struct cmd_find_state *cmd_find_target(struct cmd_q *, const char *,
80: enum cmd_find_type, int);
81:
82: const char *cmd_find_session_table[][2] = {
83: { NULL, NULL }
84: };
85: const char *cmd_find_window_table[][2] = {
86: { "{start}", "^" },
87: { "{last}", "!" },
88: { "{end}", "$" },
89: { "{next}", "+" },
90: { "{previous}", "-" },
91: { NULL, NULL }
92: };
93: const char *cmd_find_pane_table[][2] = {
94: { "{last}", "!" },
95: { "{next}", "+" },
96: { "{previous}", "-" },
97: { "{top}", "top" },
98: { "{bottom}", "bottom" },
99: { "{left}", "left" },
100: { "{right}", "right" },
101: { "{top-left}", "top-left" },
102: { "{top-right}", "top-right" },
103: { "{bottom-left}", "bottom-left" },
104: { "{bottom-right}", "bottom-right" },
1.12 nicm 105: { "{up-of}", "{up-of}" },
106: { "{down-of}", "{down-of}" },
107: { "{left-of}", "{left-of}" },
108: { "{right-of}", "{right-of}" },
1.1 nicm 109: { NULL, NULL }
110: };
111:
112: /* Is this client better? */
113: int
114: cmd_find_client_better(struct client *c, struct client *than)
115: {
116: if (than == NULL)
117: return (1);
118: return (timercmp(&c->activity_time, &than->activity_time, >));
119: }
120:
121: /* Find best client from a list, or all if list is NULL. */
122: struct client *
123: cmd_find_best_client(struct client **clist, u_int csize)
124: {
125: struct client *c_loop, *c;
126: u_int i;
127:
128: c = NULL;
129: if (clist != NULL) {
130: for (i = 0; i < csize; i++) {
1.3 nicm 131: if (clist[i]->session == NULL)
132: continue;
1.1 nicm 133: if (cmd_find_client_better(clist[i], c))
134: c = clist[i];
135: }
136: } else {
137: TAILQ_FOREACH(c_loop, &clients, entry) {
1.3 nicm 138: if (c_loop->session == NULL)
139: continue;
1.1 nicm 140: if (cmd_find_client_better(c_loop, c))
1.2 nicm 141: c = c_loop;
1.1 nicm 142: }
143: }
144: return (c);
145: }
146:
147: /* Is this session better? */
148: int
149: cmd_find_session_better(struct session *s, struct session *than, int flags)
150: {
151: int attached;
152:
153: if (than == NULL)
154: return (1);
155: if (flags & CMD_FIND_PREFER_UNATTACHED) {
156: attached = (~than->flags & SESSION_UNATTACHED);
157: if (attached && (s->flags & SESSION_UNATTACHED))
158: return (1);
159: else if (!attached && (~s->flags & SESSION_UNATTACHED))
160: return (0);
161: }
162: return (timercmp(&s->activity_time, &than->activity_time, >));
163: }
164:
165: /* Find best session from a list, or all if list is NULL. */
166: struct session *
167: cmd_find_best_session(struct session **slist, u_int ssize, int flags)
168: {
169: struct session *s_loop, *s;
170: u_int i;
171:
172: s = NULL;
173: if (slist != NULL) {
174: for (i = 0; i < ssize; i++) {
175: if (cmd_find_session_better(slist[i], s, flags))
176: s = slist[i];
177: }
178: } else {
179: RB_FOREACH(s_loop, sessions, &sessions) {
180: if (cmd_find_session_better(s_loop, s, flags))
181: s = s_loop;
182: }
183: }
184: return (s);
185: }
186:
187: /* Find best session and winlink for window. */
188: int
189: cmd_find_best_session_with_window(struct cmd_find_state *fs)
190: {
191: struct session **slist = NULL;
192: u_int ssize;
193: struct session *s;
194:
195: ssize = 0;
196: RB_FOREACH(s, sessions, &sessions) {
197: if (!session_has(s, fs->w))
198: continue;
1.7 nicm 199: slist = xreallocarray(slist, ssize + 1, sizeof *slist);
1.1 nicm 200: slist[ssize++] = s;
201: }
202: if (ssize == 0)
203: goto fail;
204: fs->s = cmd_find_best_session(slist, ssize, fs->flags);
205: if (fs->s == NULL)
206: goto fail;
1.7 nicm 207: free(slist);
1.1 nicm 208: return (cmd_find_best_winlink_with_window(fs));
209:
210: fail:
211: free(slist);
212: return (-1);
213: }
214:
215: /*
216: * Find the best winlink for a window (the current if it contains the pane,
217: * otherwise the first).
218: */
219: int
220: cmd_find_best_winlink_with_window(struct cmd_find_state *fs)
221: {
222: struct winlink *wl, *wl_loop;
223:
224: wl = NULL;
225: if (fs->s->curw->window == fs->w)
226: wl = fs->s->curw;
227: else {
228: RB_FOREACH(wl_loop, winlinks, &fs->s->windows) {
229: if (wl_loop->window == fs->w) {
230: wl = wl_loop;
231: break;
232: }
233: }
234: }
235: if (wl == NULL)
236: return (-1);
237: fs->wl = wl;
238: fs->idx = fs->wl->idx;
239: return (0);
240: }
241:
242: /* Find current session when we have an unattached client. */
243: int
244: cmd_find_current_session_with_client(struct cmd_find_state *fs)
245: {
246: struct window_pane *wp;
247:
248: /* If this is running in a pane, that's great. */
1.5 nicm 249: if (fs->cmdq->client->tty.path != NULL) {
250: RB_FOREACH(wp, window_pane_tree, &all_window_panes) {
251: if (strcmp(wp->tty, fs->cmdq->client->tty.path) == 0)
252: break;
253: }
254: } else
255: wp = NULL;
1.1 nicm 256:
257: /* Not running in a pane. We know nothing. Find the best session. */
258: if (wp == NULL) {
259: fs->s = cmd_find_best_session(NULL, 0, fs->flags);
260: if (fs->s == NULL)
261: return (-1);
262: fs->wl = fs->s->curw;
263: fs->idx = fs->wl->idx;
264: fs->w = fs->wl->window;
265: fs->wp = fs->w->active;
266: return (0);
267: }
268:
269: /* We now know the window and pane. */
270: fs->w = wp->window;
271: fs->wp = wp;
272:
273: /* Find the best session and winlink. */
274: if (cmd_find_best_session_with_window(fs) != 0)
275: return (-1);
276: return (0);
277: }
278:
279: /*
280: * Work out the best current state. If this function succeeds, the state is
281: * guaranteed to be completely filled in.
282: */
283: int
284: cmd_find_current_session(struct cmd_find_state *fs)
285: {
286: /* If we know the current client, use it. */
287: if (fs->cmdq->client != NULL) {
288: if (fs->cmdq->client->session == NULL)
289: return (cmd_find_current_session_with_client(fs));
290: fs->s = fs->cmdq->client->session;
291: fs->wl = fs->s->curw;
292: fs->idx = fs->wl->idx;
293: fs->w = fs->wl->window;
294: fs->wp = fs->w->active;
295: return (0);
296: }
297:
298: /* We know nothing, find the best session and client. */
299: fs->s = cmd_find_best_session(NULL, 0, fs->flags);
300: if (fs->s == NULL)
301: return (-1);
302: fs->wl = fs->s->curw;
303: fs->idx = fs->wl->idx;
304: fs->w = fs->wl->window;
305: fs->wp = fs->w->active;
306:
307: return (0);
308: }
309:
310: /* Work out the best current client. */
311: struct client *
312: cmd_find_current_client(struct cmd_q *cmdq)
313: {
314: struct cmd_find_state current;
315: struct session *s;
316: struct client *c, **clist = NULL;
317: u_int csize;
318:
319: /* If the queue client has a session, use it. */
320: if (cmdq->client != NULL && cmdq->client->session != NULL)
321: return (cmdq->client);
322:
323: /* Otherwise find the current session. */
324: cmd_find_clear_state(¤t, cmdq, 0);
325: if (cmd_find_current_session(¤t) != 0)
326: return (NULL);
327:
328: /* If it is attached, find the best of it's clients. */
329: s = current.s;
330: if (~s->flags & SESSION_UNATTACHED) {
331: csize = 0;
332: TAILQ_FOREACH(c, &clients, entry) {
333: if (c->session != s)
334: continue;
1.7 nicm 335: clist = xreallocarray(clist, csize + 1, sizeof *clist);
1.1 nicm 336: clist[csize++] = c;
337: }
338: if (csize != 0) {
339: c = cmd_find_best_client(clist, csize);
340: if (c != NULL) {
341: free(clist);
342: return (c);
343: }
344: }
345: free(clist);
346: }
347:
348: /* Otherwise pick best of all clients. */
349: return (cmd_find_best_client(NULL, 0));
350: }
351:
352: /* Maps string in table. */
353: const char *
354: cmd_find_map_table(const char *table[][2], const char *s)
355: {
356: u_int i;
357:
358: for (i = 0; table[i][0] != NULL; i++) {
359: if (strcmp(s, table[i][0]) == 0)
360: return (table[i][1]);
361: }
362: return (s);
363: }
364:
365: /* Find session from string. Fills in s. */
366: int
367: cmd_find_get_session(struct cmd_find_state *fs, const char *session)
368: {
369: struct session *s, *s_loop;
370:
371: log_debug("%s: %s", __func__, session);
372:
373: /* Check for session ids starting with $. */
374: if (*session == '$') {
375: fs->s = session_find_by_id_str(session);
376: if (fs->s == NULL)
377: return (-1);
378: return (0);
379: }
380:
381: /* Look for exactly this session. */
382: fs->s = session_find(session);
383: if (fs->s != NULL)
384: return (0);
385:
1.9 nicm 386: /* Stop now if exact only. */
387: if (fs->flags & CMD_FIND_EXACT_SESSION)
388: return (-1);
389:
1.1 nicm 390: /* Otherwise look for prefix. */
391: s = NULL;
392: RB_FOREACH(s_loop, sessions, &sessions) {
393: if (strncmp(session, s_loop->name, strlen(session)) == 0) {
394: if (s != NULL)
395: return (-1);
396: s = s_loop;
397: }
398: }
399: if (s != NULL) {
400: fs->s = s;
401: return (0);
402: }
403:
404: /* Then as a pattern. */
405: s = NULL;
406: RB_FOREACH(s_loop, sessions, &sessions) {
407: if (fnmatch(session, s_loop->name, 0) == 0) {
408: if (s != NULL)
409: return (-1);
410: s = s_loop;
411: }
412: }
413: if (s != NULL) {
414: fs->s = s;
415: return (0);
416: }
417:
418: return (-1);
419: }
420:
421: /* Find window from string. Fills in s, wl, w. */
422: int
423: cmd_find_get_window(struct cmd_find_state *fs, const char *window)
424: {
425: log_debug("%s: %s", __func__, window);
426:
427: /* Check for window ids starting with @. */
428: if (*window == '@') {
429: fs->w = window_find_by_id_str(window);
430: if (fs->w == NULL)
431: return (-1);
432: return (cmd_find_best_session_with_window(fs));
433: }
434:
435: /* Not a window id, so use the current session. */
436: fs->s = fs->current->s;
437:
438: /* We now only need to find the winlink in this session. */
1.4 nicm 439: if (cmd_find_get_window_with_session(fs, window) == 0)
440: return (0);
441:
442: /* Otherwise try as a session itself. */
443: if (cmd_find_get_session(fs, window) == 0) {
1.6 nicm 444: if (~fs->flags & CMD_FIND_WINDOW_INDEX) {
445: fs->wl = fs->s->curw;
446: fs->w = fs->wl->window;
447: fs->idx = fs->wl->idx;
448: }
1.4 nicm 449: return (0);
450: }
451:
452: return (-1);
1.1 nicm 453: }
454:
455: /*
456: * Find window from string, assuming it is in given session. Needs s, fills in
457: * wl and w.
458: */
459: int
460: cmd_find_get_window_with_session(struct cmd_find_state *fs, const char *window)
461: {
462: struct winlink *wl;
463: const char *errstr;
1.9 nicm 464: int idx, n, exact;
1.1 nicm 465: struct session *s;
466:
467: log_debug("%s: %s", __func__, window);
1.9 nicm 468: exact = (fs->flags & CMD_FIND_EXACT_WINDOW);
1.1 nicm 469:
470: /* Check for window ids starting with @. */
471: if (*window == '@') {
472: fs->w = window_find_by_id_str(window);
473: if (fs->w == NULL || !session_has(fs->s, fs->w))
474: return (-1);
475: return (cmd_find_best_winlink_with_window(fs));
476: }
477:
478: /* Try as an offset. */
1.10 nicm 479: if (!exact && (window[0] == '+' || window[0] == '-')) {
1.1 nicm 480: if (window[1] != '\0')
481: n = strtonum(window + 1, 1, INT_MAX, NULL);
482: else
483: n = 1;
484: s = fs->s;
485: if (fs->flags & CMD_FIND_WINDOW_INDEX) {
486: if (window[0] == '+') {
487: if (INT_MAX - s->curw->idx < n)
488: return (-1);
489: fs->idx = s->curw->idx + n;
490: } else {
491: if (n < s->curw->idx)
492: return (-1);
493: fs->idx = s->curw->idx - n;
494: }
495: return (0);
496: }
497: if (window[0] == '+')
498: fs->wl = winlink_next_by_number(s->curw, s, n);
499: else
500: fs->wl = winlink_previous_by_number(s->curw, s, n);
501: if (fs->wl != NULL) {
502: fs->idx = fs->wl->idx;
503: fs->w = fs->wl->window;
504: return (0);
505: }
506: }
507:
508: /* Try special characters. */
1.9 nicm 509: if (!exact) {
510: if (strcmp(window, "!") == 0) {
511: fs->wl = TAILQ_FIRST(&fs->s->lastw);
512: if (fs->wl == NULL)
513: return (-1);
514: fs->idx = fs->wl->idx;
515: fs->w = fs->wl->window;
516: return (0);
517: } else if (strcmp(window, "^") == 0) {
518: fs->wl = RB_MIN(winlinks, &fs->s->windows);
519: if (fs->wl == NULL)
520: return (-1);
521: fs->idx = fs->wl->idx;
522: fs->w = fs->wl->window;
523: return (0);
524: } else if (strcmp(window, "$") == 0) {
525: fs->wl = RB_MAX(winlinks, &fs->s->windows);
526: if (fs->wl == NULL)
527: return (-1);
528: fs->idx = fs->wl->idx;
529: fs->w = fs->wl->window;
530: return (0);
531: }
1.1 nicm 532: }
533:
534: /* First see if this is a valid window index in this session. */
1.9 nicm 535: if (window[0] != '+' && window[0] != '-') {
536: idx = strtonum(window, 0, INT_MAX, &errstr);
537: if (errstr == NULL) {
538: if (fs->flags & CMD_FIND_WINDOW_INDEX) {
539: fs->idx = idx;
540: return (0);
541: }
542: fs->wl = winlink_find_by_index(&fs->s->windows, idx);
543: if (fs->wl != NULL) {
544: fs->w = fs->wl->window;
545: return (0);
546: }
1.1 nicm 547: }
548: }
549:
550: /* Look for exact matches, error if more than one. */
551: fs->wl = NULL;
552: RB_FOREACH(wl, winlinks, &fs->s->windows) {
553: if (strcmp(window, wl->window->name) == 0) {
554: if (fs->wl != NULL)
555: return (-1);
556: fs->wl = wl;
557: }
558: }
559: if (fs->wl != NULL) {
560: fs->idx = fs->wl->idx;
561: fs->w = fs->wl->window;
562: return (0);
563: }
1.9 nicm 564:
565: /* Stop now if exact only. */
566: if (exact)
567: return (-1);
568:
1.1 nicm 569: /* Try as the start of a window name, error if multiple. */
570: fs->wl = NULL;
571: RB_FOREACH(wl, winlinks, &fs->s->windows) {
572: if (strncmp(window, wl->window->name, strlen(window)) == 0) {
573: if (fs->wl != NULL)
574: return (-1);
575: fs->wl = wl;
576: }
577: }
578: if (fs->wl != NULL) {
579: fs->idx = fs->wl->idx;
580: fs->w = fs->wl->window;
581: return (0);
582: }
583:
584: /* Now look for pattern matches, again error if multiple. */
585: fs->wl = NULL;
586: RB_FOREACH(wl, winlinks, &fs->s->windows) {
587: if (fnmatch(window, wl->window->name, 0) == 0) {
588: if (fs->wl != NULL)
589: return (-1);
590: fs->wl = wl;
591: }
592: }
593: if (fs->wl != NULL) {
594: fs->idx = fs->wl->idx;
595: fs->w = fs->wl->window;
596: return (0);
597: }
598:
599: return (-1);
600: }
601:
602: /* Find window from given pane. Needs wp, fills in s and wl and w. */
603: int
604: cmd_find_get_window_with_pane(struct cmd_find_state *fs)
605: {
606: log_debug("%s", __func__);
607:
608: fs->w = fs->wp->window;
609: return (cmd_find_best_session_with_window(fs));
610: }
611:
612: /* Find pane from string. Fills in s, wl, w, wp. */
613: int
614: cmd_find_get_pane(struct cmd_find_state *fs, const char *pane)
615: {
616: log_debug("%s: %s", __func__, pane);
617:
618: /* Check for pane ids starting with %. */
619: if (*pane == '%') {
620: fs->wp = window_pane_find_by_id_str(pane);
621: if (fs->wp == NULL)
622: return (-1);
623: fs->w = fs->wp->window;
624: return (cmd_find_best_session_with_window(fs));
625: }
626:
1.4 nicm 627: /* Not a pane id, so try the current session and window. */
1.1 nicm 628: fs->s = fs->current->s;
629: fs->wl = fs->current->wl;
630: fs->idx = fs->current->idx;
631: fs->w = fs->current->w;
632:
633: /* We now only need to find the pane in this window. */
1.4 nicm 634: if (cmd_find_get_pane_with_window(fs, pane) == 0)
635: return (0);
636:
637: /* Otherwise try as a window itself (this will also try as session). */
638: if (cmd_find_get_window(fs, pane) == 0) {
639: fs->wp = fs->w->active;
640: return (0);
641: }
642:
643: return (-1);
1.1 nicm 644: }
645:
646: /*
647: * Find pane from string, assuming it is in given session. Needs s, fills in wl
648: * and w and wp.
649: */
650: int
651: cmd_find_get_pane_with_session(struct cmd_find_state *fs, const char *pane)
652: {
653: log_debug("%s: %s", __func__, pane);
654:
655: /* Check for pane ids starting with %. */
656: if (*pane == '%') {
657: fs->wp = window_pane_find_by_id_str(pane);
658: if (fs->wp == NULL)
659: return (-1);
660: fs->w = fs->wp->window;
661: return (cmd_find_best_winlink_with_window(fs));
662: }
663:
664: /* Otherwise use the current window. */
665: fs->wl = fs->s->curw;
666: fs->idx = fs->wl->idx;
667: fs->w = fs->wl->window;
668:
669: /* Now we just need to look up the pane. */
670: return (cmd_find_get_pane_with_window(fs, pane));
671: }
672:
673: /*
674: * Find pane from string, assuming it is in the given window. Needs w, fills in
675: * wp.
676: */
677: int
678: cmd_find_get_pane_with_window(struct cmd_find_state *fs, const char *pane)
679: {
680: const char *errstr;
681: int idx;
682: struct window_pane *wp;
683: u_int n;
684:
685: log_debug("%s: %s", __func__, pane);
686:
687: /* Check for pane ids starting with %. */
688: if (*pane == '%') {
689: fs->wp = window_pane_find_by_id_str(pane);
690: if (fs->wp == NULL || fs->wp->window != fs->w)
691: return (-1);
692: return (0);
693: }
694:
695: /* Try special characters. */
696: if (strcmp(pane, "!") == 0) {
697: if (fs->w->last == NULL)
698: return (-1);
699: fs->wp = fs->w->last;
700: return (0);
1.12 nicm 701: } else if (strcmp(pane, "{up-of}") == 0) {
1.1 nicm 702: fs->wp = window_pane_find_up(fs->w->active);
703: if (fs->wp == NULL)
704: return (-1);
705: return (0);
1.12 nicm 706: } else if (strcmp(pane, "{down-of}") == 0) {
1.1 nicm 707: fs->wp = window_pane_find_down(fs->w->active);
708: if (fs->wp == NULL)
709: return (-1);
710: return (0);
1.12 nicm 711: } else if (strcmp(pane, "{left-of}") == 0) {
1.1 nicm 712: fs->wp = window_pane_find_left(fs->w->active);
713: if (fs->wp == NULL)
714: return (-1);
715: return (0);
1.12 nicm 716: } else if (strcmp(pane, "{right-of}") == 0) {
1.1 nicm 717: fs->wp = window_pane_find_right(fs->w->active);
718: if (fs->wp == NULL)
719: return (-1);
720: return (0);
721: }
722:
723: /* Try as an offset. */
724: if (pane[0] == '+' || pane[0] == '-') {
725: if (pane[1] != '\0')
726: n = strtonum(pane + 1, 1, INT_MAX, NULL);
727: else
728: n = 1;
729: wp = fs->w->active;
730: if (pane[0] == '+')
731: fs->wp = window_pane_next_by_number(fs->w, wp, n);
732: else
733: fs->wp = window_pane_previous_by_number(fs->w, wp, n);
734: if (fs->wp != NULL)
735: return (0);
736: }
737:
738: /* Get pane by index. */
739: idx = strtonum(pane, 0, INT_MAX, &errstr);
740: if (errstr == NULL) {
741: fs->wp = window_pane_at_index(fs->w, idx);
742: if (fs->wp != NULL)
743: return (0);
744: }
745:
746: /* Try as a description. */
747: fs->wp = window_find_string(fs->w, pane);
748: if (fs->wp != NULL)
749: return (0);
750:
751: return (-1);
752: }
753:
754: /* Clear state. */
755: void
756: cmd_find_clear_state(struct cmd_find_state *fs, struct cmd_q *cmdq, int flags)
757: {
1.7 nicm 758: memset(fs, 0, sizeof *fs);
1.1 nicm 759:
760: fs->cmdq = cmdq;
761: fs->flags = flags;
762:
763: fs->idx = -1;
764: }
765:
766: /* Split target into pieces and resolve for the given type. */
767: struct cmd_find_state *
768: cmd_find_target(struct cmd_q *cmdq, const char *target, enum cmd_find_type type,
769: int flags)
770: {
771: static struct cmd_find_state fs, current;
772: struct mouse_event *m;
773: char *colon, *period, *copy = NULL;
774: const char *session, *window, *pane;
775:
776: /* Find current state. */
777: cmd_find_clear_state(¤t, cmdq, flags);
1.8 nicm 778: if (server_check_marked() && (flags & CMD_FIND_DEFAULT_MARKED)) {
779: current.s = marked_session;
780: current.wl = marked_winlink;
781: current.idx = current.wl->idx;
782: current.w = current.wl->window;
783: current.wp = marked_window_pane;
784: }
785: if (current.s == NULL && cmd_find_current_session(¤t) != 0) {
1.1 nicm 786: if (~flags & CMD_FIND_QUIET)
787: cmdq_error(cmdq, "no current session");
788: goto error;
789: }
790:
791: /* Clear new state. */
792: cmd_find_clear_state(&fs, cmdq, flags);
793: fs.current = ¤t;
794:
795: /* An empty or NULL target is the current. */
796: if (target == NULL || *target == '\0')
797: goto current;
798:
799: /* Mouse target is a plain = or {mouse}. */
800: if (strcmp(target, "=") == 0 || strcmp(target, "{mouse}") == 0) {
801: m = &cmdq->item->mouse;
802: switch (type) {
803: case CMD_FIND_PANE:
804: fs.wp = cmd_mouse_pane(m, &fs.s, &fs.wl);
805: if (fs.wp != NULL)
806: fs.w = fs.wl->window;
807: break;
808: case CMD_FIND_WINDOW:
809: case CMD_FIND_SESSION:
810: fs.wl = cmd_mouse_window(m, &fs.s);
811: if (fs.wl != NULL) {
812: fs.w = fs.wl->window;
813: fs.wp = fs.w->active;
814: }
815: break;
816: }
817: if (fs.wp == NULL) {
818: if (~flags & CMD_FIND_QUIET)
819: cmdq_error(cmdq, "no mouse target");
820: goto error;
821: }
822: return (&fs);
823: }
1.8 nicm 824:
825: /* Marked target is a plain ~ or {marked}. */
826: if (strcmp(target, "~") == 0 || strcmp(target, "{marked}") == 0) {
827: if (!server_check_marked()) {
828: if (~flags & CMD_FIND_QUIET)
829: cmdq_error(cmdq, "no marked target");
830: goto error;
831: }
832: fs.s = marked_session;
833: fs.wl = marked_winlink;
834: fs.idx = fs.wl->idx;
835: fs.w = fs.wl->window;
836: fs.wp = marked_window_pane;
837: return (&fs);
838: }
1.1 nicm 839:
840: /* Find separators if they exist. */
1.8 nicm 841: copy = xstrdup(target);
1.1 nicm 842: colon = strchr(copy, ':');
843: if (colon != NULL)
844: *colon++ = '\0';
845: if (colon == NULL)
846: period = strchr(copy, '.');
847: else
848: period = strchr(colon, '.');
849: if (period != NULL)
850: *period++ = '\0';
851:
852: /* Set session, window and pane parts. */
853: session = window = pane = NULL;
854: if (colon != NULL && period != NULL) {
855: session = copy;
856: window = colon;
857: pane = period;
858: } else if (colon != NULL && period == NULL) {
859: session = copy;
860: window = colon;
861: } else if (colon == NULL && period != NULL) {
862: window = copy;
863: pane = period;
864: } else {
865: if (*copy == '$')
866: session = copy;
867: else if (*copy == '@')
868: window = copy;
869: else if (*copy == '%')
870: pane = copy;
871: else {
872: switch (type) {
873: case CMD_FIND_SESSION:
874: session = copy;
875: break;
876: case CMD_FIND_WINDOW:
877: window = copy;
878: break;
879: case CMD_FIND_PANE:
880: pane = copy;
881: break;
882: }
883: }
1.9 nicm 884: }
885:
886: /* Set exact match flags. */
887: if (session != NULL && *session == '=') {
888: session++;
889: fs.flags |= CMD_FIND_EXACT_SESSION;
890: }
891: if (window != NULL && *window == '=') {
892: window++;
893: fs.flags |= CMD_FIND_EXACT_WINDOW;
1.1 nicm 894: }
895:
896: /* Empty is the same as NULL. */
897: if (session != NULL && *session == '\0')
898: session = NULL;
899: if (window != NULL && *window == '\0')
900: window = NULL;
901: if (pane != NULL && *pane == '\0')
902: pane = NULL;
903:
904: /* Map though conversion table. */
905: if (session != NULL)
906: session = cmd_find_map_table(cmd_find_session_table, session);
907: if (window != NULL)
908: window = cmd_find_map_table(cmd_find_window_table, window);
909: if (pane != NULL)
910: pane = cmd_find_map_table(cmd_find_pane_table, pane);
911:
912: log_debug("target %s (flags %#x): session=%s, window=%s, pane=%s",
913: target, flags, session == NULL ? "none" : session,
914: window == NULL ? "none" : window, pane == NULL ? "none" : pane);
915:
916: /* No pane is allowed if want an index. */
917: if (pane != NULL && (flags & CMD_FIND_WINDOW_INDEX)) {
918: if (~flags & CMD_FIND_QUIET)
919: cmdq_error(cmdq, "can't specify pane here");
920: goto error;
921: }
922:
923: /* If the session isn't NULL, look it up. */
924: if (session != NULL) {
925: /* This will fill in session. */
926: if (cmd_find_get_session(&fs, session) != 0)
927: goto no_session;
928:
929: /* If window and pane are NULL, use that session's current. */
930: if (window == NULL && pane == NULL) {
931: fs.wl = fs.s->curw;
932: fs.idx = -1;
933: fs.w = fs.wl->window;
934: fs.wp = fs.w->active;
935: goto found;
936: }
937:
938: /* If window is present but pane not, find window in session. */
939: if (window != NULL && pane == NULL) {
940: /* This will fill in winlink and window. */
941: if (cmd_find_get_window_with_session(&fs, window) != 0)
942: goto no_window;
943: if (~flags & CMD_FIND_WINDOW_INDEX)
944: fs.wp = fs.wl->window->active;
945: goto found;
946: }
947:
948: /* If pane is present but window not, find pane. */
949: if (window == NULL && pane != NULL) {
950: /* This will fill in winlink and window and pane. */
951: if (cmd_find_get_pane_with_session(&fs, pane) != 0)
952: goto no_pane;
953: goto found;
954: }
955:
956: /*
957: * If window and pane are present, find both in session. This
958: * will fill in winlink and window.
959: */
960: if (cmd_find_get_window_with_session(&fs, window) != 0)
961: goto no_window;
962: /* This will fill in pane. */
963: if (cmd_find_get_pane_with_window(&fs, pane) != 0)
964: goto no_pane;
965: goto found;
966: }
967:
968: /* No session. If window and pane, try them. */
969: if (window != NULL && pane != NULL) {
970: /* This will fill in session, winlink and window. */
971: if (cmd_find_get_window(&fs, window) != 0)
972: goto no_window;
973: /* This will fill in pane. */
974: if (cmd_find_get_pane_with_window(&fs, pane) != 0)
975: goto no_pane;
976: goto found;
977: }
978:
979: /* If just window is present, try it. */
980: if (window != NULL && pane == NULL) {
981: /* This will fill in session, winlink and window. */
982: if (cmd_find_get_window(&fs, window) != 0)
983: goto no_window;
984: if (~flags & CMD_FIND_WINDOW_INDEX)
985: fs.wp = fs.wl->window->active;
986: goto found;
987: }
988:
989: /* If just pane is present, try it. */
990: if (window == NULL && pane != NULL) {
991: /* This will fill in session, winlink, window and pane. */
992: if (cmd_find_get_pane(&fs, pane) != 0)
993: goto no_pane;
994: goto found;
995: }
996:
997: current:
998: /* None is the current session. */
999: free(copy);
1000: if (flags & CMD_FIND_WINDOW_INDEX)
1001: current.idx = -1;
1002: return (¤t);
1003:
1004: error:
1005: free(copy);
1006: return (NULL);
1007:
1008: found:
1009: free(copy);
1010: return (&fs);
1011:
1012: no_session:
1013: if (~flags & CMD_FIND_QUIET)
1014: cmdq_error(cmdq, "can't find session %s", session);
1015: goto error;
1016:
1017: no_window:
1018: if (~flags & CMD_FIND_QUIET)
1019: cmdq_error(cmdq, "can't find window %s", window);
1020: goto error;
1021:
1022: no_pane:
1023: if (~flags & CMD_FIND_QUIET)
1024: cmdq_error(cmdq, "can't find pane %s", pane);
1025: goto error;
1026: }
1027:
1028: /* Log the result. */
1029: void
1030: cmd_find_log_state(const char *f, const char *target, struct cmd_find_state *fs)
1031: {
1032: log_debug("%s: target %s%s", f, target == NULL ? "none" : target,
1033: fs != NULL ? "" : " (failed)");
1034: if (fs == NULL)
1035: return;
1036: if (fs->s != NULL)
1037: log_debug("\ts=$%u", fs->s->id);
1038: else
1039: log_debug("\ts=none");
1040: if (fs->wl != NULL) {
1041: log_debug("\twl=%u %d w=@%u %s", fs->wl->idx,
1042: fs->wl->window == fs->w, fs->w->id, fs->w->name);
1043: } else
1044: log_debug("\twl=none");
1045: if (fs->wp != NULL)
1046: log_debug("\twp=%%%u", fs->wp->id);
1047: else
1048: log_debug("\twp=none");
1049: if (fs->idx != -1)
1050: log_debug("\tidx=%d", fs->idx);
1051: else
1052: log_debug("\tidx=none");
1053: }
1054:
1055: /* Find the current session. */
1056: struct session *
1057: cmd_find_current(struct cmd_q *cmdq)
1058: {
1059: struct cmd_find_state *fs;
1060: int flags = CMD_FIND_QUIET;
1061:
1062: fs = cmd_find_target(cmdq, NULL, CMD_FIND_SESSION, flags);
1063: cmd_find_log_state(__func__, NULL, fs);
1064: if (fs == NULL)
1065: return (NULL);
1066:
1067: return (fs->s);
1068: }
1069:
1070: /* Find the target session or report an error and return NULL. */
1071: struct session *
1072: cmd_find_session(struct cmd_q *cmdq, const char *target, int prefer_unattached)
1073: {
1074: struct cmd_find_state *fs;
1075: int flags = 0;
1076:
1077: if (prefer_unattached)
1078: flags |= CMD_FIND_PREFER_UNATTACHED;
1079:
1080: fs = cmd_find_target(cmdq, target, CMD_FIND_SESSION, flags);
1081: cmd_find_log_state(__func__, target, fs);
1082: if (fs == NULL)
1083: return (NULL);
1084:
1085: return (fs->s);
1086: }
1087:
1088: /* Find the target window or report an error and return NULL. */
1089: struct winlink *
1090: cmd_find_window(struct cmd_q *cmdq, const char *target, struct session **sp)
1091: {
1092: struct cmd_find_state *fs;
1093:
1094: fs = cmd_find_target(cmdq, target, CMD_FIND_WINDOW, 0);
1095: cmd_find_log_state(__func__, target, fs);
1096: if (fs == NULL)
1097: return (NULL);
1098:
1099: if (sp != NULL)
1100: *sp = fs->s;
1101: return (fs->wl);
1102: }
1103:
1.8 nicm 1104: /* Find the target window, defaulting to marked rather than current. */
1105: struct winlink *
1106: cmd_find_window_marked(struct cmd_q *cmdq, const char *target,
1107: struct session **sp)
1108: {
1109: struct cmd_find_state *fs;
1110: int flags = CMD_FIND_DEFAULT_MARKED;
1111:
1112: fs = cmd_find_target(cmdq, target, CMD_FIND_WINDOW, flags);
1113: cmd_find_log_state(__func__, target, fs);
1114: if (fs == NULL)
1115: return (NULL);
1116:
1117: if (sp != NULL)
1118: *sp = fs->s;
1119: return (fs->wl);
1120: }
1121:
1.1 nicm 1122: /* Find the target pane and report an error and return NULL. */
1123: struct winlink *
1124: cmd_find_pane(struct cmd_q *cmdq, const char *target, struct session **sp,
1125: struct window_pane **wpp)
1126: {
1127: struct cmd_find_state *fs;
1128:
1129: fs = cmd_find_target(cmdq, target, CMD_FIND_PANE, 0);
1.8 nicm 1130: cmd_find_log_state(__func__, target, fs);
1131: if (fs == NULL)
1132: return (NULL);
1133:
1134: if (sp != NULL)
1135: *sp = fs->s;
1136: if (wpp != NULL)
1137: *wpp = fs->wp;
1138: return (fs->wl);
1139: }
1140:
1141: /* Find the target pane, defaulting to marked rather than current. */
1142: struct winlink *
1143: cmd_find_pane_marked(struct cmd_q *cmdq, const char *target,
1144: struct session **sp, struct window_pane **wpp)
1145: {
1146: struct cmd_find_state *fs;
1147: int flags = CMD_FIND_DEFAULT_MARKED;
1148:
1149: fs = cmd_find_target(cmdq, target, CMD_FIND_PANE, flags);
1.1 nicm 1150: cmd_find_log_state(__func__, target, fs);
1151: if (fs == NULL)
1152: return (NULL);
1153:
1154: if (sp != NULL)
1155: *sp = fs->s;
1156: if (wpp != NULL)
1157: *wpp = fs->wp;
1158: return (fs->wl);
1159: }
1160:
1161: /* Find the target client or report an error and return NULL. */
1162: struct client *
1163: cmd_find_client(struct cmd_q *cmdq, const char *target, int quiet)
1164: {
1165: struct client *c;
1166: char *copy;
1167: size_t size;
1168: const char *path;
1169:
1170: /* A NULL argument means the current client. */
1171: if (target == NULL) {
1172: c = cmd_find_current_client(cmdq);
1173: if (c == NULL && !quiet)
1174: cmdq_error(cmdq, "no current client");
1175: return (c);
1176: }
1177: copy = xstrdup(target);
1178:
1179: /* Trim a single trailing colon if any. */
1180: size = strlen(copy);
1181: if (size != 0 && copy[size - 1] == ':')
1182: copy[size - 1] = '\0';
1183:
1184: /* Check path of each client. */
1185: TAILQ_FOREACH(c, &clients, entry) {
1186: if (c->session == NULL || c->tty.path == NULL)
1187: continue;
1188: path = c->tty.path;
1189:
1190: /* Try for exact match. */
1191: if (strcmp(copy, path) == 0)
1192: break;
1193:
1194: /* Try without leading /dev. */
1195: if (strncmp(path, _PATH_DEV, (sizeof _PATH_DEV) - 1) != 0)
1196: continue;
1197: if (strcmp(copy, path + (sizeof _PATH_DEV) - 1) == 0)
1198: break;
1199: }
1200:
1201: /* If no client found, report an error. */
1202: if (c == NULL && !quiet)
1203: cmdq_error(cmdq, "can't find client %s", copy);
1204:
1205: free(copy);
1206: return (c);
1207: }
1208:
1209: /*
1210: * Find the target session and window index, whether or not it exists in the
1211: * session. Return -2 on error or -1 if no window index is specified. This is
1212: * used when parsing an argument for a window target that may not exist (for
1213: * example if it is going to be created).
1214: */
1215: int
1216: cmd_find_index(struct cmd_q *cmdq, const char *target, struct session **sp)
1217: {
1218: struct cmd_find_state *fs;
1219: int flags = CMD_FIND_WINDOW_INDEX;
1220:
1221: fs = cmd_find_target(cmdq, target, CMD_FIND_WINDOW, flags);
1222: cmd_find_log_state(__func__, target, fs);
1223: if (fs == NULL)
1224: return (-2);
1225:
1226: if (sp != NULL)
1227: *sp = fs->s;
1228: return (fs->idx);
1229: }