Annotation of src/usr.bin/tmux/cmd.c, Revision 1.140
1.140 ! nicm 1: /* $OpenBSD: cmd.c,v 1.139 2017/05/30 21:44:59 nicm Exp $ */
1.1 nicm 2:
3: /*
1.120 nicm 4: * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
1.1 nicm 5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15: * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16: * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18:
19: #include <sys/types.h>
20: #include <sys/time.h>
21:
1.5 nicm 22: #include <fnmatch.h>
23: #include <paths.h>
1.61 nicm 24: #include <pwd.h>
1.1 nicm 25: #include <stdlib.h>
26: #include <string.h>
27: #include <unistd.h>
28:
29: #include "tmux.h"
1.105 nicm 30:
31: extern const struct cmd_entry cmd_attach_session_entry;
32: extern const struct cmd_entry cmd_bind_key_entry;
33: extern const struct cmd_entry cmd_break_pane_entry;
34: extern const struct cmd_entry cmd_capture_pane_entry;
35: extern const struct cmd_entry cmd_choose_buffer_entry;
36: extern const struct cmd_entry cmd_choose_client_entry;
37: extern const struct cmd_entry cmd_choose_tree_entry;
38: extern const struct cmd_entry cmd_clear_history_entry;
39: extern const struct cmd_entry cmd_clock_mode_entry;
40: extern const struct cmd_entry cmd_command_prompt_entry;
41: extern const struct cmd_entry cmd_confirm_before_entry;
42: extern const struct cmd_entry cmd_copy_mode_entry;
43: extern const struct cmd_entry cmd_delete_buffer_entry;
44: extern const struct cmd_entry cmd_detach_client_entry;
45: extern const struct cmd_entry cmd_display_message_entry;
46: extern const struct cmd_entry cmd_display_panes_entry;
47: extern const struct cmd_entry cmd_down_pane_entry;
48: extern const struct cmd_entry cmd_find_window_entry;
49: extern const struct cmd_entry cmd_has_session_entry;
50: extern const struct cmd_entry cmd_if_shell_entry;
51: extern const struct cmd_entry cmd_join_pane_entry;
52: extern const struct cmd_entry cmd_kill_pane_entry;
53: extern const struct cmd_entry cmd_kill_server_entry;
54: extern const struct cmd_entry cmd_kill_session_entry;
55: extern const struct cmd_entry cmd_kill_window_entry;
56: extern const struct cmd_entry cmd_last_pane_entry;
57: extern const struct cmd_entry cmd_last_window_entry;
58: extern const struct cmd_entry cmd_link_window_entry;
59: extern const struct cmd_entry cmd_list_buffers_entry;
60: extern const struct cmd_entry cmd_list_clients_entry;
61: extern const struct cmd_entry cmd_list_commands_entry;
62: extern const struct cmd_entry cmd_list_keys_entry;
63: extern const struct cmd_entry cmd_list_panes_entry;
64: extern const struct cmd_entry cmd_list_sessions_entry;
65: extern const struct cmd_entry cmd_list_windows_entry;
66: extern const struct cmd_entry cmd_load_buffer_entry;
67: extern const struct cmd_entry cmd_lock_client_entry;
68: extern const struct cmd_entry cmd_lock_server_entry;
69: extern const struct cmd_entry cmd_lock_session_entry;
70: extern const struct cmd_entry cmd_move_pane_entry;
71: extern const struct cmd_entry cmd_move_window_entry;
72: extern const struct cmd_entry cmd_new_session_entry;
73: extern const struct cmd_entry cmd_new_window_entry;
74: extern const struct cmd_entry cmd_next_layout_entry;
75: extern const struct cmd_entry cmd_next_window_entry;
76: extern const struct cmd_entry cmd_paste_buffer_entry;
77: extern const struct cmd_entry cmd_pipe_pane_entry;
78: extern const struct cmd_entry cmd_previous_layout_entry;
79: extern const struct cmd_entry cmd_previous_window_entry;
80: extern const struct cmd_entry cmd_refresh_client_entry;
81: extern const struct cmd_entry cmd_rename_session_entry;
82: extern const struct cmd_entry cmd_rename_window_entry;
83: extern const struct cmd_entry cmd_resize_pane_entry;
84: extern const struct cmd_entry cmd_respawn_pane_entry;
85: extern const struct cmd_entry cmd_respawn_window_entry;
86: extern const struct cmd_entry cmd_rotate_window_entry;
87: extern const struct cmd_entry cmd_run_shell_entry;
88: extern const struct cmd_entry cmd_save_buffer_entry;
89: extern const struct cmd_entry cmd_select_layout_entry;
90: extern const struct cmd_entry cmd_select_pane_entry;
91: extern const struct cmd_entry cmd_select_window_entry;
92: extern const struct cmd_entry cmd_send_keys_entry;
93: extern const struct cmd_entry cmd_send_prefix_entry;
94: extern const struct cmd_entry cmd_set_buffer_entry;
95: extern const struct cmd_entry cmd_set_environment_entry;
1.107 nicm 96: extern const struct cmd_entry cmd_set_hook_entry;
1.105 nicm 97: extern const struct cmd_entry cmd_set_option_entry;
98: extern const struct cmd_entry cmd_set_window_option_entry;
99: extern const struct cmd_entry cmd_show_buffer_entry;
100: extern const struct cmd_entry cmd_show_environment_entry;
1.107 nicm 101: extern const struct cmd_entry cmd_show_hooks_entry;
1.105 nicm 102: extern const struct cmd_entry cmd_show_messages_entry;
103: extern const struct cmd_entry cmd_show_options_entry;
104: extern const struct cmd_entry cmd_show_window_options_entry;
105: extern const struct cmd_entry cmd_source_file_entry;
106: extern const struct cmd_entry cmd_split_window_entry;
107: extern const struct cmd_entry cmd_start_server_entry;
108: extern const struct cmd_entry cmd_suspend_client_entry;
109: extern const struct cmd_entry cmd_swap_pane_entry;
110: extern const struct cmd_entry cmd_swap_window_entry;
111: extern const struct cmd_entry cmd_switch_client_entry;
112: extern const struct cmd_entry cmd_unbind_key_entry;
113: extern const struct cmd_entry cmd_unlink_window_entry;
114: extern const struct cmd_entry cmd_up_pane_entry;
115: extern const struct cmd_entry cmd_wait_for_entry;
1.1 nicm 116:
117: const struct cmd_entry *cmd_table[] = {
118: &cmd_attach_session_entry,
119: &cmd_bind_key_entry,
120: &cmd_break_pane_entry,
1.34 nicm 121: &cmd_capture_pane_entry,
1.42 nicm 122: &cmd_choose_buffer_entry,
1.15 nicm 123: &cmd_choose_client_entry,
1.67 nicm 124: &cmd_choose_tree_entry,
1.1 nicm 125: &cmd_clear_history_entry,
126: &cmd_clock_mode_entry,
127: &cmd_command_prompt_entry,
128: &cmd_confirm_before_entry,
129: &cmd_copy_mode_entry,
130: &cmd_delete_buffer_entry,
131: &cmd_detach_client_entry,
1.7 nicm 132: &cmd_display_message_entry,
1.16 nicm 133: &cmd_display_panes_entry,
1.1 nicm 134: &cmd_find_window_entry,
135: &cmd_has_session_entry,
1.4 nicm 136: &cmd_if_shell_entry,
1.37 nicm 137: &cmd_join_pane_entry,
1.1 nicm 138: &cmd_kill_pane_entry,
139: &cmd_kill_server_entry,
140: &cmd_kill_session_entry,
141: &cmd_kill_window_entry,
1.45 nicm 142: &cmd_last_pane_entry,
1.1 nicm 143: &cmd_last_window_entry,
144: &cmd_link_window_entry,
145: &cmd_list_buffers_entry,
146: &cmd_list_clients_entry,
147: &cmd_list_commands_entry,
148: &cmd_list_keys_entry,
1.23 nicm 149: &cmd_list_panes_entry,
1.1 nicm 150: &cmd_list_sessions_entry,
151: &cmd_list_windows_entry,
152: &cmd_load_buffer_entry,
1.19 nicm 153: &cmd_lock_client_entry,
1.1 nicm 154: &cmd_lock_server_entry,
1.19 nicm 155: &cmd_lock_session_entry,
1.63 nicm 156: &cmd_move_pane_entry,
1.1 nicm 157: &cmd_move_window_entry,
158: &cmd_new_session_entry,
159: &cmd_new_window_entry,
160: &cmd_next_layout_entry,
161: &cmd_next_window_entry,
162: &cmd_paste_buffer_entry,
1.24 nicm 163: &cmd_pipe_pane_entry,
1.1 nicm 164: &cmd_previous_layout_entry,
165: &cmd_previous_window_entry,
166: &cmd_refresh_client_entry,
167: &cmd_rename_session_entry,
168: &cmd_rename_window_entry,
169: &cmd_resize_pane_entry,
1.56 nicm 170: &cmd_respawn_pane_entry,
1.1 nicm 171: &cmd_respawn_window_entry,
172: &cmd_rotate_window_entry,
1.17 nicm 173: &cmd_run_shell_entry,
1.1 nicm 174: &cmd_save_buffer_entry,
175: &cmd_select_layout_entry,
176: &cmd_select_pane_entry,
177: &cmd_select_window_entry,
178: &cmd_send_keys_entry,
179: &cmd_send_prefix_entry,
180: &cmd_set_buffer_entry,
1.13 nicm 181: &cmd_set_environment_entry,
1.107 nicm 182: &cmd_set_hook_entry,
1.1 nicm 183: &cmd_set_option_entry,
184: &cmd_set_window_option_entry,
185: &cmd_show_buffer_entry,
1.13 nicm 186: &cmd_show_environment_entry,
1.107 nicm 187: &cmd_show_hooks_entry,
1.32 nicm 188: &cmd_show_messages_entry,
1.1 nicm 189: &cmd_show_options_entry,
190: &cmd_show_window_options_entry,
191: &cmd_source_file_entry,
192: &cmd_split_window_entry,
193: &cmd_start_server_entry,
194: &cmd_suspend_client_entry,
195: &cmd_swap_pane_entry,
196: &cmd_swap_window_entry,
197: &cmd_switch_client_entry,
198: &cmd_unbind_key_entry,
199: &cmd_unlink_window_entry,
1.82 nicm 200: &cmd_wait_for_entry,
1.1 nicm 201: NULL
202: };
203:
1.140 ! nicm 204: void
! 205: cmd_log_argv(int argc, char **argv, const char *prefix)
! 206: {
! 207: int i;
! 208:
! 209: for (i = 0; i < argc; i++)
! 210: log_debug("%s: argv[%d]=%s", prefix, i, argv[i]);
! 211: }
! 212:
1.10 nicm 213: int
214: cmd_pack_argv(int argc, char **argv, char *buf, size_t len)
215: {
216: size_t arglen;
217: int i;
1.91 nicm 218:
219: if (argc == 0)
220: return (0);
1.140 ! nicm 221: cmd_log_argv(argc, argv, __func__);
1.10 nicm 222:
223: *buf = '\0';
224: for (i = 0; i < argc; i++) {
225: if (strlcpy(buf, argv[i], len) >= len)
226: return (-1);
227: arglen = strlen(argv[i]) + 1;
228: buf += arglen;
229: len -= arglen;
230: }
231:
232: return (0);
233: }
234:
235: int
236: cmd_unpack_argv(char *buf, size_t len, int argc, char ***argv)
237: {
238: int i;
239: size_t arglen;
240:
241: if (argc == 0)
242: return (0);
243: *argv = xcalloc(argc, sizeof **argv);
244:
245: buf[len - 1] = '\0';
246: for (i = 0; i < argc; i++) {
247: if (len == 0) {
248: cmd_free_argv(argc, *argv);
249: return (-1);
250: }
251:
252: arglen = strlen(buf) + 1;
253: (*argv)[i] = xstrdup(buf);
1.140 ! nicm 254:
1.10 nicm 255: buf += arglen;
256: len -= arglen;
257: }
1.140 ! nicm 258: cmd_log_argv(argc, *argv, __func__);
1.10 nicm 259:
260: return (0);
1.46 nicm 261: }
262:
263: char **
1.93 nicm 264: cmd_copy_argv(int argc, char **argv)
1.46 nicm 265: {
266: char **new_argv;
267: int i;
268:
269: if (argc == 0)
270: return (NULL);
1.94 nicm 271: new_argv = xcalloc(argc + 1, sizeof *new_argv);
1.46 nicm 272: for (i = 0; i < argc; i++) {
273: if (argv[i] != NULL)
274: new_argv[i] = xstrdup(argv[i]);
275: }
276: return (new_argv);
1.10 nicm 277: }
278:
279: void
280: cmd_free_argv(int argc, char **argv)
281: {
282: int i;
283:
284: if (argc == 0)
1.35 nicm 285: return;
1.68 nicm 286: for (i = 0; i < argc; i++)
287: free(argv[i]);
288: free(argv);
1.94 nicm 289: }
290:
291: char *
292: cmd_stringify_argv(int argc, char **argv)
293: {
294: char *buf;
295: int i;
296: size_t len;
297:
298: if (argc == 0)
299: return (xstrdup(""));
300:
301: len = 0;
302: buf = NULL;
303:
304: for (i = 0; i < argc; i++) {
305: len += strlen(argv[i]) + 1;
1.98 nicm 306: buf = xrealloc(buf, len);
1.94 nicm 307:
308: if (i == 0)
309: *buf = '\0';
310: else
311: strlcat(buf, " ", len);
312: strlcat(buf, argv[i], len);
313: }
314: return (buf);
1.10 nicm 315: }
316:
1.135 nicm 317: static int
318: cmd_try_alias(int *argc, char ***argv)
319: {
320: struct options_entry *o;
321: int old_argc = *argc, new_argc;
322: char **old_argv = *argv, **new_argv;
323: u_int size, idx;
324: int i;
325: size_t wanted;
326: const char *s, *cp = NULL;
327:
328: o = options_get_only(global_options, "command-alias");
329: if (o == NULL || options_array_size(o, &size) == -1 || size == 0)
330: return (-1);
331:
332: wanted = strlen(old_argv[0]);
333: for (idx = 0; idx < size; idx++) {
334: s = options_array_get(o, idx);
335: if (s == NULL)
336: continue;
337:
338: cp = strchr(s, '=');
339: if (cp == NULL || (size_t)(cp - s) != wanted)
340: continue;
341: if (strncmp(old_argv[0], s, wanted) == 0)
342: break;
343: }
344: if (idx == size)
345: return (-1);
346:
347: if (cmd_string_split(cp + 1, &new_argc, &new_argv) != 0)
348: return (-1);
349:
350: *argc = new_argc + old_argc - 1;
351: *argv = xcalloc((*argc) + 1, sizeof **argv);
352:
353: for (i = 0; i < new_argc; i++)
354: (*argv)[i] = xstrdup(new_argv[i]);
355: for (i = 1; i < old_argc; i++)
356: (*argv)[new_argc + i - 1] = xstrdup(old_argv[i]);
357:
358: log_debug("alias: %s=%s", old_argv[0], cp + 1);
359: for (i = 0; i < *argc; i++)
360: log_debug("alias: argv[%d] = %s", i, (*argv)[i]);
361:
362: cmd_free_argv(new_argc, new_argv);
363: return (0);
364: }
365:
1.1 nicm 366: struct cmd *
1.80 nicm 367: cmd_parse(int argc, char **argv, const char *file, u_int line, char **cause)
1.1 nicm 368: {
1.135 nicm 369: const char *name;
1.1 nicm 370: const struct cmd_entry **entryp, *entry;
1.27 deraadt 371: struct cmd *cmd;
1.49 nicm 372: struct args *args;
1.1 nicm 373: char s[BUFSIZ];
1.135 nicm 374: int ambiguous, allocated = 0;
1.1 nicm 375:
376: *cause = NULL;
1.2 nicm 377: if (argc == 0) {
378: xasprintf(cause, "no command");
1.1 nicm 379: return (NULL);
1.2 nicm 380: }
1.135 nicm 381: name = argv[0];
1.1 nicm 382:
1.135 nicm 383: retry:
384: ambiguous = 0;
1.1 nicm 385: entry = NULL;
386: for (entryp = cmd_table; *entryp != NULL; entryp++) {
387: if ((*entryp)->alias != NULL &&
388: strcmp((*entryp)->alias, argv[0]) == 0) {
1.3 nicm 389: ambiguous = 0;
1.1 nicm 390: entry = *entryp;
391: break;
392: }
393:
394: if (strncmp((*entryp)->name, argv[0], strlen(argv[0])) != 0)
395: continue;
396: if (entry != NULL)
1.3 nicm 397: ambiguous = 1;
1.1 nicm 398: entry = *entryp;
399:
400: /* Bail now if an exact match. */
401: if (strcmp(entry->name, argv[0]) == 0)
402: break;
403: }
1.135 nicm 404: if ((ambiguous || entry == NULL) &&
405: server_proc != NULL &&
406: !allocated &&
407: cmd_try_alias(&argc, &argv) == 0) {
408: allocated = 1;
409: goto retry;
410: }
1.3 nicm 411: if (ambiguous)
412: goto ambiguous;
1.1 nicm 413: if (entry == NULL) {
1.135 nicm 414: xasprintf(cause, "unknown command: %s", name);
1.1 nicm 415: return (NULL);
416: }
1.140 ! nicm 417: cmd_log_argv(argc, argv, entry->name);
1.1 nicm 418:
1.117 nicm 419: args = args_parse(entry->args.template, argc, argv);
1.49 nicm 420: if (args == NULL)
421: goto usage;
1.117 nicm 422: if (entry->args.lower != -1 && args->argc < entry->args.lower)
1.49 nicm 423: goto usage;
1.117 nicm 424: if (entry->args.upper != -1 && args->argc > entry->args.upper)
1.49 nicm 425: goto usage;
1.1 nicm 426:
1.80 nicm 427: cmd = xcalloc(1, sizeof *cmd);
1.1 nicm 428: cmd->entry = entry;
1.49 nicm 429: cmd->args = args;
1.80 nicm 430:
431: if (file != NULL)
432: cmd->file = xstrdup(file);
433: cmd->line = line;
434:
1.135 nicm 435: if (allocated)
436: cmd_free_argv(argc, argv);
1.1 nicm 437: return (cmd);
438:
439: ambiguous:
440: *s = '\0';
441: for (entryp = cmd_table; *entryp != NULL; entryp++) {
442: if (strncmp((*entryp)->name, argv[0], strlen(argv[0])) != 0)
443: continue;
444: if (strlcat(s, (*entryp)->name, sizeof s) >= sizeof s)
445: break;
446: if (strlcat(s, ", ", sizeof s) >= sizeof s)
447: break;
448: }
449: s[strlen(s) - 2] = '\0';
1.135 nicm 450: xasprintf(cause, "ambiguous command: %s, could be: %s", name, s);
1.1 nicm 451: return (NULL);
452:
453: usage:
1.49 nicm 454: if (args != NULL)
455: args_free(args);
1.1 nicm 456: xasprintf(cause, "usage: %s %s", entry->name, entry->usage);
457: return (NULL);
458: }
459:
1.106 nicm 460: char *
461: cmd_print(struct cmd *cmd)
1.1 nicm 462: {
1.106 nicm 463: char *out, *s;
464:
465: s = args_print(cmd->args);
466: if (*s != '\0')
467: xasprintf(&out, "%s %s", cmd->entry->name, s);
468: else
469: out = xstrdup(cmd->entry->name);
470: free(s);
1.49 nicm 471:
1.106 nicm 472: return (out);
1.1 nicm 473: }
474:
1.99 nicm 475: /* Adjust current mouse position for a pane. */
476: int
477: cmd_mouse_at(struct window_pane *wp, struct mouse_event *m, u_int *xp,
478: u_int *yp, int last)
479: {
480: u_int x, y;
481:
482: if (last) {
483: x = m->lx;
484: y = m->ly;
485: } else {
486: x = m->x;
487: y = m->y;
488: }
489:
490: if (m->statusat == 0 && y > 0)
491: y--;
492: else if (m->statusat > 0 && y >= (u_int)m->statusat)
493: y = m->statusat - 1;
494:
495: if (x < wp->xoff || x >= wp->xoff + wp->sx)
496: return (-1);
497: if (y < wp->yoff || y >= wp->yoff + wp->sy)
498: return (-1);
499:
1.123 nicm 500: if (xp != NULL)
501: *xp = x - wp->xoff;
502: if (yp != NULL)
503: *yp = y - wp->yoff;
1.99 nicm 504: return (0);
505: }
506:
507: /* Get current mouse window if any. */
508: struct winlink *
509: cmd_mouse_window(struct mouse_event *m, struct session **sp)
510: {
511: struct session *s;
512: struct window *w;
513:
514: if (!m->valid || m->s == -1 || m->w == -1)
515: return (NULL);
516: if ((s = session_find_by_id(m->s)) == NULL)
517: return (NULL);
518: if ((w = window_find_by_id(m->w)) == NULL)
519: return (NULL);
520:
521: if (sp != NULL)
522: *sp = s;
523: return (winlink_find_by_window(&s->windows, w));
524: }
525:
526: /* Get current mouse pane if any. */
527: struct window_pane *
1.104 nicm 528: cmd_mouse_pane(struct mouse_event *m, struct session **sp,
529: struct winlink **wlp)
1.99 nicm 530: {
531: struct winlink *wl;
532: struct window_pane *wp;
533:
534: if ((wl = cmd_mouse_window(m, sp)) == NULL)
535: return (NULL);
536: if ((wp = window_pane_find_by_id(m->wp)) == NULL)
537: return (NULL);
538: if (!window_has_pane(wl->window, wp))
539: return (NULL);
540:
541: if (wlp != NULL)
542: *wlp = wl;
1.43 nicm 543: return (wp);
1.15 nicm 544: }
545:
546: /* Replace the first %% or %idx in template by s. */
547: char *
1.75 nicm 548: cmd_template_replace(const char *template, const char *s, int idx)
1.15 nicm 549: {
1.75 nicm 550: char ch, *buf;
1.131 nicm 551: const char *ptr, *cp, quote[] = "\"\\$";
1.127 nicm 552: int replaced, quoted;
1.84 nicm 553: size_t len;
1.15 nicm 554:
1.76 nicm 555: if (strchr(template, '%') == NULL)
1.15 nicm 556: return (xstrdup(template));
557:
558: buf = xmalloc(1);
559: *buf = '\0';
560: len = 0;
561: replaced = 0;
562:
563: ptr = template;
564: while (*ptr != '\0') {
565: switch (ch = *ptr++) {
566: case '%':
567: if (*ptr < '1' || *ptr > '9' || *ptr - '0' != idx) {
568: if (*ptr != '%' || replaced)
569: break;
570: replaced = 1;
571: }
572: ptr++;
573:
1.127 nicm 574: quoted = (*ptr == '%');
575: if (quoted)
576: ptr++;
577:
1.132 nicm 578: buf = xrealloc(buf, len + (strlen(s) * 3) + 1);
1.127 nicm 579: for (cp = s; *cp != '\0'; cp++) {
1.131 nicm 580: if (quoted && strchr(quote, *cp) != NULL)
1.127 nicm 581: buf[len++] = '\\';
1.132 nicm 582: if (quoted && *cp == ';') {
583: buf[len++] = '\\';
584: buf[len++] = '\\';
585: }
1.127 nicm 586: buf[len++] = *cp;
587: }
588: buf[len] = '\0';
1.15 nicm 589: continue;
590: }
1.98 nicm 591: buf = xrealloc(buf, len + 2);
1.15 nicm 592: buf[len++] = ch;
593: buf[len] = '\0';
594: }
595:
596: return (buf);
1.1 nicm 597: }
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