Annotation of src/usr.bin/tmux/cmd-find.c, Revision 1.1
1.1 ! nicm 1: /* $OpenBSD: cmd.c,v 1.100 2015/04/21 22:42:27 nicm Exp $ */
! 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++) {
! 128: if (cmd_find_client_better(clist[i], c))
! 129: c = clist[i];
! 130: }
! 131: } else {
! 132: TAILQ_FOREACH(c_loop, &clients, entry) {
! 133: if (cmd_find_client_better(c_loop, c))
! 134: c_loop = c;
! 135: }
! 136: }
! 137: return (c);
! 138: }
! 139:
! 140: /* Is this session better? */
! 141: int
! 142: cmd_find_session_better(struct session *s, struct session *than, int flags)
! 143: {
! 144: int attached;
! 145:
! 146: if (than == NULL)
! 147: return (1);
! 148: if (flags & CMD_FIND_PREFER_UNATTACHED) {
! 149: attached = (~than->flags & SESSION_UNATTACHED);
! 150: if (attached && (s->flags & SESSION_UNATTACHED))
! 151: return (1);
! 152: else if (!attached && (~s->flags & SESSION_UNATTACHED))
! 153: return (0);
! 154: }
! 155: return (timercmp(&s->activity_time, &than->activity_time, >));
! 156: }
! 157:
! 158: /* Find best session from a list, or all if list is NULL. */
! 159: struct session *
! 160: cmd_find_best_session(struct session **slist, u_int ssize, int flags)
! 161: {
! 162: struct session *s_loop, *s;
! 163: u_int i;
! 164:
! 165: s = NULL;
! 166: if (slist != NULL) {
! 167: for (i = 0; i < ssize; i++) {
! 168: if (cmd_find_session_better(slist[i], s, flags))
! 169: s = slist[i];
! 170: }
! 171: } else {
! 172: RB_FOREACH(s_loop, sessions, &sessions) {
! 173: if (cmd_find_session_better(s_loop, s, flags))
! 174: s = s_loop;
! 175: }
! 176: }
! 177: return (s);
! 178: }
! 179:
! 180: /* Find best session and winlink for window. */
! 181: int
! 182: cmd_find_best_session_with_window(struct cmd_find_state *fs)
! 183: {
! 184: struct session **slist = NULL;
! 185: u_int ssize;
! 186: struct session *s;
! 187:
! 188: ssize = 0;
! 189: RB_FOREACH(s, sessions, &sessions) {
! 190: if (!session_has(s, fs->w))
! 191: continue;
! 192: slist = xreallocarray (slist, ssize + 1, sizeof *slist);
! 193: slist[ssize++] = s;
! 194: }
! 195: if (ssize == 0)
! 196: goto fail;
! 197: fs->s = cmd_find_best_session(slist, ssize, fs->flags);
! 198: if (fs->s == NULL)
! 199: goto fail;
! 200: free (slist);
! 201: return (cmd_find_best_winlink_with_window(fs));
! 202:
! 203: fail:
! 204: free(slist);
! 205: return (-1);
! 206: }
! 207:
! 208: /*
! 209: * Find the best winlink for a window (the current if it contains the pane,
! 210: * otherwise the first).
! 211: */
! 212: int
! 213: cmd_find_best_winlink_with_window(struct cmd_find_state *fs)
! 214: {
! 215: struct winlink *wl, *wl_loop;
! 216:
! 217: wl = NULL;
! 218: if (fs->s->curw->window == fs->w)
! 219: wl = fs->s->curw;
! 220: else {
! 221: RB_FOREACH(wl_loop, winlinks, &fs->s->windows) {
! 222: if (wl_loop->window == fs->w) {
! 223: wl = wl_loop;
! 224: break;
! 225: }
! 226: }
! 227: }
! 228: if (wl == NULL)
! 229: return (-1);
! 230: fs->wl = wl;
! 231: fs->idx = fs->wl->idx;
! 232: return (0);
! 233: }
! 234:
! 235: /* Find current session when we have an unattached client. */
! 236: int
! 237: cmd_find_current_session_with_client(struct cmd_find_state *fs)
! 238: {
! 239: struct window_pane *wp;
! 240:
! 241: /* If this is running in a pane, that's great. */
! 242: RB_FOREACH(wp, window_pane_tree, &all_window_panes) {
! 243: if (strcmp(wp->tty, fs->cmdq->client->tty.path) == 0)
! 244: break;
! 245: }
! 246:
! 247: /* Not running in a pane. We know nothing. Find the best session. */
! 248: if (wp == NULL) {
! 249: fs->s = cmd_find_best_session(NULL, 0, fs->flags);
! 250: if (fs->s == NULL)
! 251: return (-1);
! 252: fs->wl = fs->s->curw;
! 253: fs->idx = fs->wl->idx;
! 254: fs->w = fs->wl->window;
! 255: fs->wp = fs->w->active;
! 256: return (0);
! 257: }
! 258:
! 259: /* We now know the window and pane. */
! 260: fs->w = wp->window;
! 261: fs->wp = wp;
! 262:
! 263: /* Find the best session and winlink. */
! 264: if (cmd_find_best_session_with_window(fs) != 0)
! 265: return (-1);
! 266: return (0);
! 267: }
! 268:
! 269: /*
! 270: * Work out the best current state. If this function succeeds, the state is
! 271: * guaranteed to be completely filled in.
! 272: */
! 273: int
! 274: cmd_find_current_session(struct cmd_find_state *fs)
! 275: {
! 276: /* If we know the current client, use it. */
! 277: if (fs->cmdq->client != NULL) {
! 278: if (fs->cmdq->client->session == NULL)
! 279: return (cmd_find_current_session_with_client(fs));
! 280: fs->s = fs->cmdq->client->session;
! 281: fs->wl = fs->s->curw;
! 282: fs->idx = fs->wl->idx;
! 283: fs->w = fs->wl->window;
! 284: fs->wp = fs->w->active;
! 285: return (0);
! 286: }
! 287:
! 288: /* We know nothing, find the best session and client. */
! 289: fs->s = cmd_find_best_session(NULL, 0, fs->flags);
! 290: if (fs->s == NULL)
! 291: return (-1);
! 292: fs->wl = fs->s->curw;
! 293: fs->idx = fs->wl->idx;
! 294: fs->w = fs->wl->window;
! 295: fs->wp = fs->w->active;
! 296:
! 297: return (0);
! 298: }
! 299:
! 300: /* Work out the best current client. */
! 301: struct client *
! 302: cmd_find_current_client(struct cmd_q *cmdq)
! 303: {
! 304: struct cmd_find_state current;
! 305: struct session *s;
! 306: struct client *c, **clist = NULL;
! 307: u_int csize;
! 308:
! 309: /* If the queue client has a session, use it. */
! 310: if (cmdq->client != NULL && cmdq->client->session != NULL)
! 311: return (cmdq->client);
! 312:
! 313: /* Otherwise find the current session. */
! 314: cmd_find_clear_state(¤t, cmdq, 0);
! 315: if (cmd_find_current_session(¤t) != 0)
! 316: return (NULL);
! 317:
! 318: /* If it is attached, find the best of it's clients. */
! 319: s = current.s;
! 320: if (~s->flags & SESSION_UNATTACHED) {
! 321: csize = 0;
! 322: TAILQ_FOREACH(c, &clients, entry) {
! 323: if (c->session != s)
! 324: continue;
! 325: clist = xreallocarray (clist, csize + 1, sizeof *clist);
! 326: clist[csize++] = c;
! 327: }
! 328: if (csize != 0) {
! 329: c = cmd_find_best_client(clist, csize);
! 330: if (c != NULL) {
! 331: free(clist);
! 332: return (c);
! 333: }
! 334: }
! 335: free(clist);
! 336: }
! 337:
! 338: /* Otherwise pick best of all clients. */
! 339: return (cmd_find_best_client(NULL, 0));
! 340: }
! 341:
! 342: /* Maps string in table. */
! 343: const char *
! 344: cmd_find_map_table(const char *table[][2], const char *s)
! 345: {
! 346: u_int i;
! 347:
! 348: for (i = 0; table[i][0] != NULL; i++) {
! 349: if (strcmp(s, table[i][0]) == 0)
! 350: return (table[i][1]);
! 351: }
! 352: return (s);
! 353: }
! 354:
! 355: /* Find session from string. Fills in s. */
! 356: int
! 357: cmd_find_get_session(struct cmd_find_state *fs, const char *session)
! 358: {
! 359: struct session *s, *s_loop;
! 360:
! 361: log_debug("%s: %s", __func__, session);
! 362:
! 363: /* Check for session ids starting with $. */
! 364: if (*session == '$') {
! 365: fs->s = session_find_by_id_str(session);
! 366: if (fs->s == NULL)
! 367: return (-1);
! 368: return (0);
! 369: }
! 370:
! 371: /* Look for exactly this session. */
! 372: fs->s = session_find(session);
! 373: if (fs->s != NULL)
! 374: return (0);
! 375:
! 376: /* Otherwise look for prefix. */
! 377: s = NULL;
! 378: RB_FOREACH(s_loop, sessions, &sessions) {
! 379: if (strncmp(session, s_loop->name, strlen(session)) == 0) {
! 380: if (s != NULL)
! 381: return (-1);
! 382: s = s_loop;
! 383: }
! 384: }
! 385: if (s != NULL) {
! 386: fs->s = s;
! 387: return (0);
! 388: }
! 389:
! 390: /* Then as a pattern. */
! 391: s = NULL;
! 392: RB_FOREACH(s_loop, sessions, &sessions) {
! 393: if (fnmatch(session, s_loop->name, 0) == 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: return (-1);
! 405: }
! 406:
! 407: /* Find window from string. Fills in s, wl, w. */
! 408: int
! 409: cmd_find_get_window(struct cmd_find_state *fs, const char *window)
! 410: {
! 411: log_debug("%s: %s", __func__, window);
! 412:
! 413: /* Check for window ids starting with @. */
! 414: if (*window == '@') {
! 415: fs->w = window_find_by_id_str(window);
! 416: if (fs->w == NULL)
! 417: return (-1);
! 418: return (cmd_find_best_session_with_window(fs));
! 419: }
! 420:
! 421: /* Not a window id, so use the current session. */
! 422: fs->s = fs->current->s;
! 423:
! 424: /* We now only need to find the winlink in this session. */
! 425: return (cmd_find_get_window_with_session(fs, window));
! 426: }
! 427:
! 428: /*
! 429: * Find window from string, assuming it is in given session. Needs s, fills in
! 430: * wl and w.
! 431: */
! 432: int
! 433: cmd_find_get_window_with_session(struct cmd_find_state *fs, const char *window)
! 434: {
! 435: struct winlink *wl;
! 436: const char *errstr;
! 437: int idx, n;
! 438: struct session *s;
! 439:
! 440: log_debug("%s: %s", __func__, window);
! 441:
! 442: /* Check for window ids starting with @. */
! 443: if (*window == '@') {
! 444: fs->w = window_find_by_id_str(window);
! 445: if (fs->w == NULL || !session_has(fs->s, fs->w))
! 446: return (-1);
! 447: return (cmd_find_best_winlink_with_window(fs));
! 448: }
! 449:
! 450: /* Try as an offset. */
! 451: if (window[0] == '+' || window[0] == '-') {
! 452: if (window[1] != '\0')
! 453: n = strtonum(window + 1, 1, INT_MAX, NULL);
! 454: else
! 455: n = 1;
! 456: s = fs->s;
! 457: if (fs->flags & CMD_FIND_WINDOW_INDEX) {
! 458: if (window[0] == '+') {
! 459: if (INT_MAX - s->curw->idx < n)
! 460: return (-1);
! 461: fs->idx = s->curw->idx + n;
! 462: } else {
! 463: if (n < s->curw->idx)
! 464: return (-1);
! 465: fs->idx = s->curw->idx - n;
! 466: }
! 467: return (0);
! 468: }
! 469: if (window[0] == '+')
! 470: fs->wl = winlink_next_by_number(s->curw, s, n);
! 471: else
! 472: fs->wl = winlink_previous_by_number(s->curw, s, n);
! 473: if (fs->wl != NULL) {
! 474: fs->idx = fs->wl->idx;
! 475: fs->w = fs->wl->window;
! 476: return (0);
! 477: }
! 478: }
! 479:
! 480: /* Try special characters. */
! 481: if (strcmp(window, "!") == 0) {
! 482: fs->wl = TAILQ_FIRST(&fs->s->lastw);
! 483: if (fs->wl == NULL)
! 484: return (-1);
! 485: fs->idx = fs->wl->idx;
! 486: fs->w = fs->wl->window;
! 487: return (0);
! 488: } else if (strcmp(window, "^") == 0) {
! 489: fs->wl = RB_MIN(winlinks, &fs->s->windows);
! 490: if (fs->wl == NULL)
! 491: return (-1);
! 492: fs->idx = fs->wl->idx;
! 493: fs->w = fs->wl->window;
! 494: return (0);
! 495: } else if (strcmp(window, "$") == 0) {
! 496: fs->wl = RB_MAX(winlinks, &fs->s->windows);
! 497: if (fs->wl == NULL)
! 498: return (-1);
! 499: fs->idx = fs->wl->idx;
! 500: fs->w = fs->wl->window;
! 501: return (0);
! 502: }
! 503:
! 504: /* First see if this is a valid window index in this session. */
! 505: idx = strtonum(window, 0, INT_MAX, &errstr);
! 506: if (errstr == NULL) {
! 507: if (fs->flags & CMD_FIND_WINDOW_INDEX) {
! 508: fs->idx = idx;
! 509: return (0);
! 510: }
! 511: fs->wl = winlink_find_by_index(&fs->s->windows, idx);
! 512: if (fs->wl != NULL) {
! 513: fs->w = fs->wl->window;
! 514: return (0);
! 515: }
! 516: }
! 517:
! 518: /* Look for exact matches, error if more than one. */
! 519: fs->wl = NULL;
! 520: RB_FOREACH(wl, winlinks, &fs->s->windows) {
! 521: if (strcmp(window, wl->window->name) == 0) {
! 522: if (fs->wl != NULL)
! 523: return (-1);
! 524: fs->wl = wl;
! 525: }
! 526: }
! 527: if (fs->wl != NULL) {
! 528: fs->idx = fs->wl->idx;
! 529: fs->w = fs->wl->window;
! 530: return (0);
! 531: }
! 532:
! 533: /* Try as the start of a window name, error if multiple. */
! 534: fs->wl = NULL;
! 535: RB_FOREACH(wl, winlinks, &fs->s->windows) {
! 536: if (strncmp(window, wl->window->name, strlen(window)) == 0) {
! 537: if (fs->wl != NULL)
! 538: return (-1);
! 539: fs->wl = wl;
! 540: }
! 541: }
! 542: if (fs->wl != NULL) {
! 543: fs->idx = fs->wl->idx;
! 544: fs->w = fs->wl->window;
! 545: return (0);
! 546: }
! 547:
! 548: /* Now look for pattern matches, again error if multiple. */
! 549: fs->wl = NULL;
! 550: RB_FOREACH(wl, winlinks, &fs->s->windows) {
! 551: if (fnmatch(window, wl->window->name, 0) == 0) {
! 552: if (fs->wl != NULL)
! 553: return (-1);
! 554: fs->wl = wl;
! 555: }
! 556: }
! 557: if (fs->wl != NULL) {
! 558: fs->idx = fs->wl->idx;
! 559: fs->w = fs->wl->window;
! 560: return (0);
! 561: }
! 562:
! 563: return (-1);
! 564: }
! 565:
! 566: /* Find window from given pane. Needs wp, fills in s and wl and w. */
! 567: int
! 568: cmd_find_get_window_with_pane(struct cmd_find_state *fs)
! 569: {
! 570: log_debug("%s", __func__);
! 571:
! 572: fs->w = fs->wp->window;
! 573: return (cmd_find_best_session_with_window(fs));
! 574: }
! 575:
! 576: /* Find pane from string. Fills in s, wl, w, wp. */
! 577: int
! 578: cmd_find_get_pane(struct cmd_find_state *fs, const char *pane)
! 579: {
! 580: log_debug("%s: %s", __func__, pane);
! 581:
! 582: /* Check for pane ids starting with %. */
! 583: if (*pane == '%') {
! 584: fs->wp = window_pane_find_by_id_str(pane);
! 585: if (fs->wp == NULL)
! 586: return (-1);
! 587: fs->w = fs->wp->window;
! 588: return (cmd_find_best_session_with_window(fs));
! 589: }
! 590:
! 591: /* Not a pane id, so use the current session and window. */
! 592: fs->s = fs->current->s;
! 593: fs->wl = fs->current->wl;
! 594: fs->idx = fs->current->idx;
! 595: fs->w = fs->current->w;
! 596:
! 597: /* We now only need to find the pane in this window. */
! 598: return (cmd_find_get_pane_with_window(fs, pane));
! 599: }
! 600:
! 601: /*
! 602: * Find pane from string, assuming it is in given session. Needs s, fills in wl
! 603: * and w and wp.
! 604: */
! 605: int
! 606: cmd_find_get_pane_with_session(struct cmd_find_state *fs, const char *pane)
! 607: {
! 608: log_debug("%s: %s", __func__, pane);
! 609:
! 610: /* Check for pane ids starting with %. */
! 611: if (*pane == '%') {
! 612: fs->wp = window_pane_find_by_id_str(pane);
! 613: if (fs->wp == NULL)
! 614: return (-1);
! 615: fs->w = fs->wp->window;
! 616: return (cmd_find_best_winlink_with_window(fs));
! 617: }
! 618:
! 619: /* Otherwise use the current window. */
! 620: fs->wl = fs->s->curw;
! 621: fs->idx = fs->wl->idx;
! 622: fs->w = fs->wl->window;
! 623:
! 624: /* Now we just need to look up the pane. */
! 625: return (cmd_find_get_pane_with_window(fs, pane));
! 626: }
! 627:
! 628: /*
! 629: * Find pane from string, assuming it is in the given window. Needs w, fills in
! 630: * wp.
! 631: */
! 632: int
! 633: cmd_find_get_pane_with_window(struct cmd_find_state *fs, const char *pane)
! 634: {
! 635: const char *errstr;
! 636: int idx;
! 637: struct window_pane *wp;
! 638: u_int n;
! 639:
! 640: log_debug("%s: %s", __func__, pane);
! 641:
! 642: /* Check for pane ids starting with %. */
! 643: if (*pane == '%') {
! 644: fs->wp = window_pane_find_by_id_str(pane);
! 645: if (fs->wp == NULL || fs->wp->window != fs->w)
! 646: return (-1);
! 647: return (0);
! 648: }
! 649:
! 650: /* Try special characters. */
! 651: if (strcmp(pane, "!") == 0) {
! 652: if (fs->w->last == NULL)
! 653: return (-1);
! 654: fs->wp = fs->w->last;
! 655: return (0);
! 656: } else if (strcmp(pane, "{up}") == 0) {
! 657: fs->wp = window_pane_find_up(fs->w->active);
! 658: if (fs->wp == NULL)
! 659: return (-1);
! 660: return (0);
! 661: } else if (strcmp(pane, "{down}") == 0) {
! 662: fs->wp = window_pane_find_down(fs->w->active);
! 663: if (fs->wp == NULL)
! 664: return (-1);
! 665: return (0);
! 666: } else if (strcmp(pane, "{left}") == 0) {
! 667: fs->wp = window_pane_find_left(fs->w->active);
! 668: if (fs->wp == NULL)
! 669: return (-1);
! 670: return (0);
! 671: } else if (strcmp(pane, "{right}") == 0) {
! 672: fs->wp = window_pane_find_right(fs->w->active);
! 673: if (fs->wp == NULL)
! 674: return (-1);
! 675: return (0);
! 676: }
! 677:
! 678: /* Try as an offset. */
! 679: if (pane[0] == '+' || pane[0] == '-') {
! 680: if (pane[1] != '\0')
! 681: n = strtonum(pane + 1, 1, INT_MAX, NULL);
! 682: else
! 683: n = 1;
! 684: wp = fs->w->active;
! 685: if (pane[0] == '+')
! 686: fs->wp = window_pane_next_by_number(fs->w, wp, n);
! 687: else
! 688: fs->wp = window_pane_previous_by_number(fs->w, wp, n);
! 689: if (fs->wp != NULL)
! 690: return (0);
! 691: }
! 692:
! 693: /* Get pane by index. */
! 694: idx = strtonum(pane, 0, INT_MAX, &errstr);
! 695: if (errstr == NULL) {
! 696: fs->wp = window_pane_at_index(fs->w, idx);
! 697: if (fs->wp != NULL)
! 698: return (0);
! 699: }
! 700:
! 701: /* Try as a description. */
! 702: fs->wp = window_find_string(fs->w, pane);
! 703: if (fs->wp != NULL)
! 704: return (0);
! 705:
! 706: return (-1);
! 707: }
! 708:
! 709: /* Clear state. */
! 710: void
! 711: cmd_find_clear_state(struct cmd_find_state *fs, struct cmd_q *cmdq, int flags)
! 712: {
! 713: memset (fs, 0, sizeof *fs);
! 714:
! 715: fs->cmdq = cmdq;
! 716: fs->flags = flags;
! 717:
! 718: fs->idx = -1;
! 719: }
! 720:
! 721: /* Split target into pieces and resolve for the given type. */
! 722: struct cmd_find_state *
! 723: cmd_find_target(struct cmd_q *cmdq, const char *target, enum cmd_find_type type,
! 724: int flags)
! 725: {
! 726: static struct cmd_find_state fs, current;
! 727: struct mouse_event *m;
! 728: char *colon, *period, *copy = NULL;
! 729: const char *session, *window, *pane;
! 730:
! 731: /* Find current state. */
! 732: cmd_find_clear_state(¤t, cmdq, flags);
! 733: if (cmd_find_current_session(¤t) != 0) {
! 734: if (~flags & CMD_FIND_QUIET)
! 735: cmdq_error(cmdq, "no current session");
! 736: goto error;
! 737: }
! 738:
! 739: /* Clear new state. */
! 740: cmd_find_clear_state(&fs, cmdq, flags);
! 741: fs.current = ¤t;
! 742:
! 743: /* An empty or NULL target is the current. */
! 744: if (target == NULL || *target == '\0')
! 745: goto current;
! 746:
! 747: /* Mouse target is a plain = or {mouse}. */
! 748: if (strcmp(target, "=") == 0 || strcmp(target, "{mouse}") == 0) {
! 749: m = &cmdq->item->mouse;
! 750: switch (type) {
! 751: case CMD_FIND_PANE:
! 752: fs.wp = cmd_mouse_pane(m, &fs.s, &fs.wl);
! 753: if (fs.wp != NULL)
! 754: fs.w = fs.wl->window;
! 755: break;
! 756: case CMD_FIND_WINDOW:
! 757: case CMD_FIND_SESSION:
! 758: fs.wl = cmd_mouse_window(m, &fs.s);
! 759: if (fs.wl != NULL) {
! 760: fs.w = fs.wl->window;
! 761: fs.wp = fs.w->active;
! 762: }
! 763: break;
! 764: }
! 765: if (fs.wp == NULL) {
! 766: if (~flags & CMD_FIND_QUIET)
! 767: cmdq_error(cmdq, "no mouse target");
! 768: goto error;
! 769: }
! 770: return (&fs);
! 771: }
! 772: copy = xstrdup(target);
! 773:
! 774: /* Find separators if they exist. */
! 775: colon = strchr(copy, ':');
! 776: if (colon != NULL)
! 777: *colon++ = '\0';
! 778: if (colon == NULL)
! 779: period = strchr(copy, '.');
! 780: else
! 781: period = strchr(colon, '.');
! 782: if (period != NULL)
! 783: *period++ = '\0';
! 784:
! 785: /* Set session, window and pane parts. */
! 786: session = window = pane = NULL;
! 787: if (colon != NULL && period != NULL) {
! 788: session = copy;
! 789: window = colon;
! 790: pane = period;
! 791: } else if (colon != NULL && period == NULL) {
! 792: session = copy;
! 793: window = colon;
! 794: } else if (colon == NULL && period != NULL) {
! 795: window = copy;
! 796: pane = period;
! 797: } else {
! 798: if (*copy == '$')
! 799: session = copy;
! 800: else if (*copy == '@')
! 801: window = copy;
! 802: else if (*copy == '%')
! 803: pane = copy;
! 804: else {
! 805: switch (type) {
! 806: case CMD_FIND_SESSION:
! 807: session = copy;
! 808: break;
! 809: case CMD_FIND_WINDOW:
! 810: window = copy;
! 811: break;
! 812: case CMD_FIND_PANE:
! 813: pane = copy;
! 814: break;
! 815: }
! 816: }
! 817: }
! 818:
! 819: /* Empty is the same as NULL. */
! 820: if (session != NULL && *session == '\0')
! 821: session = NULL;
! 822: if (window != NULL && *window == '\0')
! 823: window = NULL;
! 824: if (pane != NULL && *pane == '\0')
! 825: pane = NULL;
! 826:
! 827: /* Map though conversion table. */
! 828: if (session != NULL)
! 829: session = cmd_find_map_table(cmd_find_session_table, session);
! 830: if (window != NULL)
! 831: window = cmd_find_map_table(cmd_find_window_table, window);
! 832: if (pane != NULL)
! 833: pane = cmd_find_map_table(cmd_find_pane_table, pane);
! 834:
! 835: log_debug("target %s (flags %#x): session=%s, window=%s, pane=%s",
! 836: target, flags, session == NULL ? "none" : session,
! 837: window == NULL ? "none" : window, pane == NULL ? "none" : pane);
! 838:
! 839: /* No pane is allowed if want an index. */
! 840: if (pane != NULL && (flags & CMD_FIND_WINDOW_INDEX)) {
! 841: if (~flags & CMD_FIND_QUIET)
! 842: cmdq_error(cmdq, "can't specify pane here");
! 843: goto error;
! 844: }
! 845:
! 846: /* If the session isn't NULL, look it up. */
! 847: if (session != NULL) {
! 848: /* This will fill in session. */
! 849: if (cmd_find_get_session(&fs, session) != 0)
! 850: goto no_session;
! 851:
! 852: /* If window and pane are NULL, use that session's current. */
! 853: if (window == NULL && pane == NULL) {
! 854: fs.wl = fs.s->curw;
! 855: fs.idx = -1;
! 856: fs.w = fs.wl->window;
! 857: fs.wp = fs.w->active;
! 858: goto found;
! 859: }
! 860:
! 861: /* If window is present but pane not, find window in session. */
! 862: if (window != NULL && pane == NULL) {
! 863: /* This will fill in winlink and window. */
! 864: if (cmd_find_get_window_with_session(&fs, window) != 0)
! 865: goto no_window;
! 866: if (~flags & CMD_FIND_WINDOW_INDEX)
! 867: fs.wp = fs.wl->window->active;
! 868: goto found;
! 869: }
! 870:
! 871: /* If pane is present but window not, find pane. */
! 872: if (window == NULL && pane != NULL) {
! 873: /* This will fill in winlink and window and pane. */
! 874: if (cmd_find_get_pane_with_session(&fs, pane) != 0)
! 875: goto no_pane;
! 876: goto found;
! 877: }
! 878:
! 879: /*
! 880: * If window and pane are present, find both in session. This
! 881: * will fill in winlink and window.
! 882: */
! 883: if (cmd_find_get_window_with_session(&fs, window) != 0)
! 884: goto no_window;
! 885: /* This will fill in pane. */
! 886: if (cmd_find_get_pane_with_window(&fs, pane) != 0)
! 887: goto no_pane;
! 888: goto found;
! 889: }
! 890:
! 891: /* No session. If window and pane, try them. */
! 892: if (window != NULL && pane != NULL) {
! 893: /* This will fill in session, winlink and window. */
! 894: if (cmd_find_get_window(&fs, window) != 0)
! 895: goto no_window;
! 896: /* This will fill in pane. */
! 897: if (cmd_find_get_pane_with_window(&fs, pane) != 0)
! 898: goto no_pane;
! 899: goto found;
! 900: }
! 901:
! 902: /* If just window is present, try it. */
! 903: if (window != NULL && pane == NULL) {
! 904: /* This will fill in session, winlink and window. */
! 905: if (cmd_find_get_window(&fs, window) != 0)
! 906: goto no_window;
! 907: if (~flags & CMD_FIND_WINDOW_INDEX)
! 908: fs.wp = fs.wl->window->active;
! 909: goto found;
! 910: }
! 911:
! 912: /* If just pane is present, try it. */
! 913: if (window == NULL && pane != NULL) {
! 914: /* This will fill in session, winlink, window and pane. */
! 915: if (cmd_find_get_pane(&fs, pane) != 0)
! 916: goto no_pane;
! 917: goto found;
! 918: }
! 919:
! 920: current:
! 921: /* None is the current session. */
! 922: free(copy);
! 923: if (flags & CMD_FIND_WINDOW_INDEX)
! 924: current.idx = -1;
! 925: return (¤t);
! 926:
! 927: error:
! 928: free(copy);
! 929: return (NULL);
! 930:
! 931: found:
! 932: free(copy);
! 933: return (&fs);
! 934:
! 935: no_session:
! 936: if (~flags & CMD_FIND_QUIET)
! 937: cmdq_error(cmdq, "can't find session %s", session);
! 938: goto error;
! 939:
! 940: no_window:
! 941: if (~flags & CMD_FIND_QUIET)
! 942: cmdq_error(cmdq, "can't find window %s", window);
! 943: goto error;
! 944:
! 945: no_pane:
! 946: if (~flags & CMD_FIND_QUIET)
! 947: cmdq_error(cmdq, "can't find pane %s", pane);
! 948: goto error;
! 949: }
! 950:
! 951: /* Log the result. */
! 952: void
! 953: cmd_find_log_state(const char *f, const char *target, struct cmd_find_state *fs)
! 954: {
! 955: log_debug("%s: target %s%s", f, target == NULL ? "none" : target,
! 956: fs != NULL ? "" : " (failed)");
! 957: if (fs == NULL)
! 958: return;
! 959: if (fs->s != NULL)
! 960: log_debug("\ts=$%u", fs->s->id);
! 961: else
! 962: log_debug("\ts=none");
! 963: if (fs->wl != NULL) {
! 964: log_debug("\twl=%u %d w=@%u %s", fs->wl->idx,
! 965: fs->wl->window == fs->w, fs->w->id, fs->w->name);
! 966: } else
! 967: log_debug("\twl=none");
! 968: if (fs->wp != NULL)
! 969: log_debug("\twp=%%%u", fs->wp->id);
! 970: else
! 971: log_debug("\twp=none");
! 972: if (fs->idx != -1)
! 973: log_debug("\tidx=%d", fs->idx);
! 974: else
! 975: log_debug("\tidx=none");
! 976: }
! 977:
! 978: /* Find the current session. */
! 979: struct session *
! 980: cmd_find_current(struct cmd_q *cmdq)
! 981: {
! 982: struct cmd_find_state *fs;
! 983: int flags = CMD_FIND_QUIET;
! 984:
! 985: fs = cmd_find_target(cmdq, NULL, CMD_FIND_SESSION, flags);
! 986: cmd_find_log_state(__func__, NULL, fs);
! 987: if (fs == NULL)
! 988: return (NULL);
! 989:
! 990: return (fs->s);
! 991: }
! 992:
! 993: /* Find the target session or report an error and return NULL. */
! 994: struct session *
! 995: cmd_find_session(struct cmd_q *cmdq, const char *target, int prefer_unattached)
! 996: {
! 997: struct cmd_find_state *fs;
! 998: int flags = 0;
! 999:
! 1000: if (prefer_unattached)
! 1001: flags |= CMD_FIND_PREFER_UNATTACHED;
! 1002:
! 1003: fs = cmd_find_target(cmdq, target, CMD_FIND_SESSION, flags);
! 1004: cmd_find_log_state(__func__, target, fs);
! 1005: if (fs == NULL)
! 1006: return (NULL);
! 1007:
! 1008: return (fs->s);
! 1009: }
! 1010:
! 1011: /* Find the target window or report an error and return NULL. */
! 1012: struct winlink *
! 1013: cmd_find_window(struct cmd_q *cmdq, const char *target, struct session **sp)
! 1014: {
! 1015: struct cmd_find_state *fs;
! 1016:
! 1017: fs = cmd_find_target(cmdq, target, CMD_FIND_WINDOW, 0);
! 1018: cmd_find_log_state(__func__, target, fs);
! 1019: if (fs == NULL)
! 1020: return (NULL);
! 1021:
! 1022: if (sp != NULL)
! 1023: *sp = fs->s;
! 1024: return (fs->wl);
! 1025: }
! 1026:
! 1027: /* Find the target pane and report an error and return NULL. */
! 1028: struct winlink *
! 1029: cmd_find_pane(struct cmd_q *cmdq, const char *target, struct session **sp,
! 1030: struct window_pane **wpp)
! 1031: {
! 1032: struct cmd_find_state *fs;
! 1033:
! 1034: fs = cmd_find_target(cmdq, target, CMD_FIND_PANE, 0);
! 1035: cmd_find_log_state(__func__, target, fs);
! 1036: if (fs == NULL)
! 1037: return (NULL);
! 1038:
! 1039: if (sp != NULL)
! 1040: *sp = fs->s;
! 1041: if (wpp != NULL)
! 1042: *wpp = fs->wp;
! 1043: return (fs->wl);
! 1044: }
! 1045:
! 1046: /* Find the target client or report an error and return NULL. */
! 1047: struct client *
! 1048: cmd_find_client(struct cmd_q *cmdq, const char *target, int quiet)
! 1049: {
! 1050: struct client *c;
! 1051: char *copy;
! 1052: size_t size;
! 1053: const char *path;
! 1054:
! 1055: /* A NULL argument means the current client. */
! 1056: if (target == NULL) {
! 1057: c = cmd_find_current_client(cmdq);
! 1058: if (c == NULL && !quiet)
! 1059: cmdq_error(cmdq, "no current client");
! 1060: return (c);
! 1061: }
! 1062: copy = xstrdup(target);
! 1063:
! 1064: /* Trim a single trailing colon if any. */
! 1065: size = strlen(copy);
! 1066: if (size != 0 && copy[size - 1] == ':')
! 1067: copy[size - 1] = '\0';
! 1068:
! 1069: /* Check path of each client. */
! 1070: TAILQ_FOREACH(c, &clients, entry) {
! 1071: if (c->session == NULL || c->tty.path == NULL)
! 1072: continue;
! 1073: path = c->tty.path;
! 1074:
! 1075: /* Try for exact match. */
! 1076: if (strcmp(copy, path) == 0)
! 1077: break;
! 1078:
! 1079: /* Try without leading /dev. */
! 1080: if (strncmp(path, _PATH_DEV, (sizeof _PATH_DEV) - 1) != 0)
! 1081: continue;
! 1082: if (strcmp(copy, path + (sizeof _PATH_DEV) - 1) == 0)
! 1083: break;
! 1084: }
! 1085:
! 1086: /* If no client found, report an error. */
! 1087: if (c == NULL && !quiet)
! 1088: cmdq_error(cmdq, "can't find client %s", copy);
! 1089:
! 1090: free(copy);
! 1091: return (c);
! 1092: }
! 1093:
! 1094: /*
! 1095: * Find the target session and window index, whether or not it exists in the
! 1096: * session. Return -2 on error or -1 if no window index is specified. This is
! 1097: * used when parsing an argument for a window target that may not exist (for
! 1098: * example if it is going to be created).
! 1099: */
! 1100: int
! 1101: cmd_find_index(struct cmd_q *cmdq, const char *target, struct session **sp)
! 1102: {
! 1103: struct cmd_find_state *fs;
! 1104: int flags = CMD_FIND_WINDOW_INDEX;
! 1105:
! 1106: fs = cmd_find_target(cmdq, target, CMD_FIND_WINDOW, flags);
! 1107: cmd_find_log_state(__func__, target, fs);
! 1108: if (fs == NULL)
! 1109: return (-2);
! 1110:
! 1111: if (sp != NULL)
! 1112: *sp = fs->s;
! 1113: return (fs->idx);
! 1114: }
![[BACK]](/icons/back.gif){kind=icon}
Return to cmd-find.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / tmux