Annotation of src/usr.bin/tmux/format.c, Revision 1.37
1.37 ! nicm 1: /* $OpenBSD: format.c,v 1.36 2013/10/10 12:39:24 nicm Exp $ */
1.1 nicm 2:
3: /*
4: * Copyright (c) 2011 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:
1.30 nicm 21: #include <ctype.h>
22: #include <errno.h>
1.1 nicm 23: #include <netdb.h>
24: #include <stdarg.h>
1.9 nicm 25: #include <stdlib.h>
1.1 nicm 26: #include <string.h>
27: #include <time.h>
28: #include <unistd.h>
29:
30: #include "tmux.h"
31:
32: /*
33: * Build a list of key-value pairs and use them to expand #{key} entries in a
34: * string.
35: */
36:
1.32 nicm 37: int format_replace(struct format_tree *, const char *, size_t, char **,
38: size_t *, size_t *);
39: char *format_get_command(struct window_pane *);
40: void format_window_pane_tabs(struct format_tree *, struct window_pane *);
1.1 nicm 41:
42: /* Format key-value replacement entry. */
43: RB_GENERATE(format_tree, format_entry, entry, format_cmp);
44:
45: /* Format tree comparison function. */
46: int
47: format_cmp(struct format_entry *fe1, struct format_entry *fe2)
48: {
49: return (strcmp(fe1->key, fe2->key));
50: }
51:
1.25 nicm 52: /* Single-character uppercase aliases. */
53: const char *format_upper[] = {
1.1 nicm 54: NULL, /* A */
55: NULL, /* B */
56: NULL, /* C */
57: "pane_id", /* D */
58: NULL, /* E */
59: "window_flags", /* F */
60: NULL, /* G */
61: "host", /* H */
62: "window_index", /* I */
63: NULL, /* J */
64: NULL, /* K */
65: NULL, /* L */
66: NULL, /* M */
67: NULL, /* N */
68: NULL, /* O */
69: "pane_index", /* P */
70: NULL, /* Q */
71: NULL, /* R */
72: "session_name", /* S */
73: "pane_title", /* T */
74: NULL, /* U */
75: NULL, /* V */
76: "window_name", /* W */
77: NULL, /* X */
78: NULL, /* Y */
79: NULL /* Z */
80: };
81:
1.25 nicm 82: /* Single-character lowercase aliases. */
83: const char *format_lower[] = {
84: NULL, /* a */
85: NULL, /* b */
86: NULL, /* c */
87: NULL, /* d */
88: NULL, /* e */
89: NULL, /* f */
90: NULL, /* g */
91: "host_short", /* h */
92: NULL, /* i */
93: NULL, /* j */
94: NULL, /* k */
95: NULL, /* l */
96: NULL, /* m */
97: NULL, /* n */
98: NULL, /* o */
99: NULL, /* p */
100: NULL, /* q */
101: NULL, /* r */
102: NULL, /* s */
103: NULL, /* t */
104: NULL, /* u */
105: NULL, /* v */
106: NULL, /* w */
107: NULL, /* x */
108: NULL, /* y */
109: NULL /* z */
110: };
111:
1.1 nicm 112: /* Create a new tree. */
113: struct format_tree *
114: format_create(void)
115: {
116: struct format_tree *ft;
1.25 nicm 117: char host[MAXHOSTNAMELEN], *ptr;
1.1 nicm 118:
119: ft = xmalloc(sizeof *ft);
120: RB_INIT(ft);
121:
1.25 nicm 122: if (gethostname(host, sizeof host) == 0) {
1.1 nicm 123: format_add(ft, "host", "%s", host);
1.33 nicm 124: if ((ptr = strchr(host, '.')) != NULL)
1.25 nicm 125: *ptr = '\0';
126: format_add(ft, "host_short", "%s", host);
127: }
1.1 nicm 128:
129: return (ft);
130: }
131:
132: /* Free a tree. */
133: void
134: format_free(struct format_tree *ft)
135: {
136: struct format_entry *fe, *fe_next;
137:
138: fe_next = RB_MIN(format_tree, ft);
139: while (fe_next != NULL) {
140: fe = fe_next;
141: fe_next = RB_NEXT(format_tree, ft, fe);
142:
143: RB_REMOVE(format_tree, ft, fe);
1.9 nicm 144: free(fe->value);
145: free(fe->key);
146: free(fe);
1.1 nicm 147: }
148:
1.25 nicm 149: free(ft);
1.1 nicm 150: }
151:
152: /* Add a key-value pair. */
153: void
154: format_add(struct format_tree *ft, const char *key, const char *fmt, ...)
155: {
156: struct format_entry *fe;
1.28 nicm 157: struct format_entry *fe_now;
1.1 nicm 158: va_list ap;
159:
160: fe = xmalloc(sizeof *fe);
161: fe->key = xstrdup(key);
162:
163: va_start(ap, fmt);
164: xvasprintf(&fe->value, fmt, ap);
165: va_end(ap);
166:
1.28 nicm 167: fe_now = RB_INSERT(format_tree, ft, fe);
168: if (fe_now != NULL) {
169: free(fe_now->value);
170: fe_now->value = fe->value;
171: free(fe->key);
172: free(fe);
173: }
1.1 nicm 174: }
175:
176: /* Find a format entry. */
177: const char *
178: format_find(struct format_tree *ft, const char *key)
179: {
180: struct format_entry *fe, fe_find;
181:
182: fe_find.key = (char *) key;
183: fe = RB_FIND(format_tree, ft, &fe_find);
184: if (fe == NULL)
185: return (NULL);
186: return (fe->value);
187: }
188:
189: /*
190: * Replace a key/value pair in buffer. #{blah} is expanded directly,
191: * #{?blah,a,b} is replace with a if blah exists and is nonzero else b.
192: */
193: int
1.30 nicm 194: format_replace(struct format_tree *ft, const char *key, size_t keylen,
195: char **buf, size_t *len, size_t *off)
1.1 nicm 196: {
1.31 nicm 197: char *copy, *copy0, *endptr, *ptr, *saved;
1.1 nicm 198: const char *value;
199: size_t valuelen;
1.30 nicm 200: u_long limit = ULONG_MAX;
1.1 nicm 201:
202: /* Make a copy of the key. */
1.30 nicm 203: copy0 = copy = xmalloc(keylen + 1);
1.1 nicm 204: memcpy(copy, key, keylen);
205: copy[keylen] = '\0';
206:
1.30 nicm 207: /* Is there a length limit or whatnot? */
208: if (!islower((u_char) *copy) && *copy != '?') {
209: while (*copy != ':' && *copy != '\0') {
210: switch (*copy) {
211: case '=':
212: errno = 0;
213: limit = strtoul(copy + 1, &endptr, 10);
214: if (errno == ERANGE && limit == ULONG_MAX)
215: goto fail;
216: copy = endptr;
217: break;
218: default:
219: copy++;
220: break;
221: }
222: }
223: if (*copy != ':')
224: goto fail;
225: copy++;
226: }
227:
1.1 nicm 228: /*
229: * Is this a conditional? If so, check it exists and extract either the
230: * first or second element. If not, look up the key directly.
231: */
232: if (*copy == '?') {
233: ptr = strchr(copy, ',');
234: if (ptr == NULL)
235: goto fail;
236: *ptr = '\0';
237:
238: value = format_find(ft, copy + 1);
239: if (value != NULL && (value[0] != '0' || value[1] != '\0')) {
240: value = ptr + 1;
241: ptr = strchr(value, ',');
242: if (ptr == NULL)
243: goto fail;
244: *ptr = '\0';
245: } else {
246: ptr = strchr(ptr + 1, ',');
247: if (ptr == NULL)
248: goto fail;
249: value = ptr + 1;
250: }
1.31 nicm 251: saved = format_expand(ft, value);
252: value = saved;
1.1 nicm 253: } else {
254: value = format_find(ft, copy);
255: if (value == NULL)
256: value = "";
1.31 nicm 257: saved = NULL;
1.1 nicm 258: }
259: valuelen = strlen(value);
260:
1.30 nicm 261: /* Truncate the value if needed. */
262: if (valuelen > limit)
263: valuelen = limit;
264:
1.1 nicm 265: /* Expand the buffer and copy in the value. */
266: while (*len - *off < valuelen + 1) {
267: *buf = xrealloc(*buf, 2, *len);
268: *len *= 2;
269: }
270: memcpy(*buf + *off, value, valuelen);
271: *off += valuelen;
272:
1.31 nicm 273: free(saved);
1.30 nicm 274: free(copy0);
1.1 nicm 275: return (0);
276:
277: fail:
1.30 nicm 278: free(copy0);
1.1 nicm 279: return (-1);
280: }
281:
282: /* Expand keys in a template. */
283: char *
284: format_expand(struct format_tree *ft, const char *fmt)
285: {
1.31 nicm 286: char *buf;
287: const char *ptr, *s;
1.1 nicm 288: size_t off, len, n;
1.31 nicm 289: int ch, brackets;
1.1 nicm 290:
291: len = 64;
292: buf = xmalloc(len);
293: off = 0;
294:
295: while (*fmt != '\0') {
296: if (*fmt != '#') {
297: while (len - off < 2) {
298: buf = xrealloc(buf, 2, len);
299: len *= 2;
300: }
301: buf[off++] = *fmt++;
302: continue;
303: }
304: fmt++;
305:
306: ch = (u_char) *fmt++;
307: switch (ch) {
308: case '{':
1.31 nicm 309: brackets = 1;
310: for (ptr = fmt; *ptr != '\0'; ptr++) {
311: if (*ptr == '{')
312: brackets++;
313: if (*ptr == '}' && --brackets == 0)
314: break;
315: }
316: if (*ptr != '}' || brackets != 0)
1.1 nicm 317: break;
318: n = ptr - fmt;
319:
320: if (format_replace(ft, fmt, n, &buf, &len, &off) != 0)
321: break;
322: fmt += n + 1;
323: continue;
324: default:
1.25 nicm 325: s = NULL;
326: if (ch >= 'A' && ch <= 'Z')
327: s = format_upper[ch - 'A'];
328: else if (ch >= 'a' && ch <= 'z')
329: s = format_lower[ch - 'a'];
330: if (s == NULL) {
331: while (len - off < 3) {
332: buf = xrealloc(buf, 2, len);
333: len *= 2;
1.1 nicm 334: }
1.25 nicm 335: buf[off++] = '#';
336: buf[off++] = ch;
337: continue;
1.1 nicm 338: }
1.25 nicm 339: n = strlen(s);
340: if (format_replace(ft, s, n, &buf, &len, &off) != 0)
341: break;
1.1 nicm 342: continue;
343: }
344:
345: break;
346: }
347: buf[off] = '\0';
348:
349: return (buf);
350: }
351:
1.32 nicm 352: /* Get command name for format. */
353: char *
354: format_get_command(struct window_pane *wp)
355: {
1.37 ! nicm 356: char *cmd, *out;
1.32 nicm 357:
358: cmd = get_proc_name(wp->fd, wp->tty);
359: if (cmd == NULL || *cmd == '\0') {
360: cmd = wp->cmd;
361: if (cmd == NULL || *cmd == '\0')
362: cmd = wp->shell;
363: }
1.37 ! nicm 364: out = parse_window_name(cmd);
! 365: free(cmd);
! 366: return (out);
1.32 nicm 367: }
368:
1.1 nicm 369: /* Set default format keys for a session. */
370: void
371: format_session(struct format_tree *ft, struct session *s)
372: {
373: struct session_group *sg;
374: char *tim;
375: time_t t;
376:
377: format_add(ft, "session_name", "%s", s->name);
378: format_add(ft, "session_windows", "%u", winlink_count(&s->windows));
379: format_add(ft, "session_width", "%u", s->sx);
380: format_add(ft, "session_height", "%u", s->sy);
1.23 nicm 381: format_add(ft, "session_id", "$%u", s->id);
1.1 nicm 382:
383: sg = session_group_find(s);
384: format_add(ft, "session_grouped", "%d", sg != NULL);
385: if (sg != NULL)
386: format_add(ft, "session_group", "%u", session_group_index(sg));
387:
388: t = s->creation_time.tv_sec;
1.24 deraadt 389: format_add(ft, "session_created", "%lld", (long long) t);
1.1 nicm 390: tim = ctime(&t);
391: *strchr(tim, '\n') = '\0';
392: format_add(ft, "session_created_string", "%s", tim);
393:
394: if (s->flags & SESSION_UNATTACHED)
395: format_add(ft, "session_attached", "%d", 0);
396: else
397: format_add(ft, "session_attached", "%d", 1);
1.3 nicm 398: }
399:
400: /* Set default format keys for a client. */
401: void
402: format_client(struct format_tree *ft, struct client *c)
403: {
1.15 nicm 404: char *tim;
405: time_t t;
406: struct session *s;
1.3 nicm 407:
1.6 nicm 408: format_add(ft, "client_height", "%u", c->tty.sy);
409: format_add(ft, "client_width", "%u", c->tty.sx);
1.27 nicm 410: if (c->tty.path != NULL)
411: format_add(ft, "client_tty", "%s", c->tty.path);
412: if (c->tty.termname != NULL)
413: format_add(ft, "client_termname", "%s", c->tty.termname);
1.3 nicm 414:
415: t = c->creation_time.tv_sec;
1.24 deraadt 416: format_add(ft, "client_created", "%lld", (long long) t);
1.3 nicm 417: tim = ctime(&t);
418: *strchr(tim, '\n') = '\0';
419: format_add(ft, "client_created_string", "%s", tim);
420:
421: t = c->activity_time.tv_sec;
1.24 deraadt 422: format_add(ft, "client_activity", "%lld", (long long) t);
1.3 nicm 423: tim = ctime(&t);
424: *strchr(tim, '\n') = '\0';
425: format_add(ft, "client_activity_string", "%s", tim);
1.14 nicm 426:
427: format_add(ft, "client_prefix", "%d", !!(c->flags & CLIENT_PREFIX));
1.3 nicm 428:
429: if (c->tty.flags & TTY_UTF8)
430: format_add(ft, "client_utf8", "%d", 1);
431: else
432: format_add(ft, "client_utf8", "%d", 0);
433:
434: if (c->flags & CLIENT_READONLY)
435: format_add(ft, "client_readonly", "%d", 1);
436: else
437: format_add(ft, "client_readonly", "%d", 0);
1.15 nicm 438:
439: s = c->session;
440: if (s != NULL)
441: format_add(ft, "client_session", "%s", s->name);
442: s = c->last_session;
443: if (s != NULL && session_alive(s))
444: format_add(ft, "client_last_session", "%s", s->name);
1.1 nicm 445: }
446:
1.32 nicm 447: /* Set default format keys for a window. */
448: void
449: format_window(struct format_tree *ft, struct window *w)
450: {
451: char *layout;
452:
453: layout = layout_dump(w);
454:
455: format_add(ft, "window_id", "@%u", w->id);
456: format_add(ft, "window_name", "%s", w->name);
457: format_add(ft, "window_width", "%u", w->sx);
458: format_add(ft, "window_height", "%u", w->sy);
459: format_add(ft, "window_layout", "%s", layout);
460: format_add(ft, "window_panes", "%u", window_count_panes(w));
461:
462: free(layout);
463: }
464:
1.1 nicm 465: /* Set default format keys for a winlink. */
466: void
467: format_winlink(struct format_tree *ft, struct session *s, struct winlink *wl)
468: {
469: struct window *w = wl->window;
1.32 nicm 470: char *flags;
1.1 nicm 471:
472: flags = window_printable_flags(s, wl);
473:
1.32 nicm 474: format_window(ft, w);
475:
1.1 nicm 476: format_add(ft, "window_index", "%d", wl->idx);
477: format_add(ft, "window_flags", "%s", flags);
478: format_add(ft, "window_active", "%d", wl == s->curw);
1.29 nicm 479:
480: format_add(ft, "window_bell_flag", "%u",
481: !!(wl->flags & WINLINK_BELL));
482: format_add(ft, "window_content_flag", "%u",
483: !!(wl->flags & WINLINK_CONTENT));
484: format_add(ft, "window_activity_flag", "%u",
485: !!(wl->flags & WINLINK_ACTIVITY));
486: format_add(ft, "window_silence_flag", "%u",
487: !!(wl->flags & WINLINK_SILENCE));
1.1 nicm 488:
1.32 nicm 489:
1.9 nicm 490: free(flags);
1.1 nicm 491: }
492:
1.19 nicm 493: /* Add window pane tabs. */
494: void
495: format_window_pane_tabs(struct format_tree *ft, struct window_pane *wp)
496: {
497: struct evbuffer *buffer;
498: u_int i;
499:
500: buffer = evbuffer_new();
501: for (i = 0; i < wp->base.grid->sx; i++) {
502: if (!bit_test(wp->base.tabs, i))
503: continue;
504:
505: if (EVBUFFER_LENGTH(buffer) > 0)
506: evbuffer_add(buffer, ",", 1);
507: evbuffer_add_printf(buffer, "%d", i);
508: }
509:
510: format_add(ft, "pane_tabs", "%.*s", (int) EVBUFFER_LENGTH(buffer),
511: EVBUFFER_DATA(buffer));
512: evbuffer_free(buffer);
513: }
514:
1.1 nicm 515: /* Set default format keys for a window pane. */
516: void
517: format_window_pane(struct format_tree *ft, struct window_pane *wp)
518: {
519: struct grid *gd = wp->base.grid;
520: struct grid_line *gl;
521: unsigned long long size;
1.20 nicm 522: u_int i, idx;
1.21 nicm 523: char *cmd;
1.1 nicm 524:
525: size = 0;
526: for (i = 0; i < gd->hsize; i++) {
527: gl = &gd->linedata[i];
528: size += gl->cellsize * sizeof *gl->celldata;
529: }
530: size += gd->hsize * sizeof *gd->linedata;
1.16 nicm 531: format_add(ft, "history_size", "%u", gd->hsize);
532: format_add(ft, "history_limit", "%u", gd->hlimit);
533: format_add(ft, "history_bytes", "%llu", size);
1.1 nicm 534:
1.4 nicm 535: if (window_pane_index(wp, &idx) != 0)
536: fatalx("index not found");
1.16 nicm 537: format_add(ft, "pane_index", "%u", idx);
1.4 nicm 538:
1.1 nicm 539: format_add(ft, "pane_width", "%u", wp->sx);
540: format_add(ft, "pane_height", "%u", wp->sy);
541: format_add(ft, "pane_title", "%s", wp->base.title);
542: format_add(ft, "pane_id", "%%%u", wp->id);
543: format_add(ft, "pane_active", "%d", wp == wp->window->active);
544: format_add(ft, "pane_dead", "%d", wp->fd == -1);
1.16 nicm 545:
546: format_add(ft, "pane_in_mode", "%d", wp->screen != &wp->base);
1.26 nicm 547: format_add(ft, "pane_synchronized", "%d",
548: !!options_get_number(&wp->window->options, "synchronize-panes"));
1.16 nicm 549:
550: if (wp->tty != NULL)
551: format_add(ft, "pane_tty", "%s", wp->tty);
552: format_add(ft, "pane_pid", "%ld", (long) wp->pid);
1.2 nicm 553: if (wp->cmd != NULL)
554: format_add(ft, "pane_start_command", "%s", wp->cmd);
1.35 nicm 555: if ((cmd = format_get_command(wp)) != NULL) {
1.17 nicm 556: format_add(ft, "pane_current_command", "%s", cmd);
1.21 nicm 557: free(cmd);
558: }
1.16 nicm 559:
560: format_add(ft, "cursor_x", "%d", wp->base.cx);
561: format_add(ft, "cursor_y", "%d", wp->base.cy);
562: format_add(ft, "scroll_region_upper", "%d", wp->base.rupper);
563: format_add(ft, "scroll_region_lower", "%d", wp->base.rlower);
564: format_add(ft, "saved_cursor_x", "%d", wp->ictx.old_cx);
565: format_add(ft, "saved_cursor_y", "%d", wp->ictx.old_cy);
566:
567: format_add(ft, "alternate_on", "%d", wp->saved_grid ? 1 : 0);
568: format_add(ft, "alternate_saved_x", "%d", wp->saved_cx);
569: format_add(ft, "alternate_saved_y", "%d", wp->saved_cy);
570:
571: format_add(ft, "cursor_flag", "%d",
572: !!(wp->base.mode & MODE_CURSOR));
573: format_add(ft, "insert_flag", "%d",
574: !!(wp->base.mode & MODE_INSERT));
575: format_add(ft, "keypad_cursor_flag", "%d",
576: !!(wp->base.mode & MODE_KCURSOR));
577: format_add(ft, "keypad_flag", "%d",
578: !!(wp->base.mode & MODE_KKEYPAD));
579: format_add(ft, "wrap_flag", "%d",
580: !!(wp->base.mode & MODE_WRAP));
581:
582: format_add(ft, "mouse_standard_flag", "%d",
583: !!(wp->base.mode & MODE_MOUSE_STANDARD));
584: format_add(ft, "mouse_button_flag", "%d",
585: !!(wp->base.mode & MODE_MOUSE_BUTTON));
586: format_add(ft, "mouse_any_flag", "%d",
587: !!(wp->base.mode & MODE_MOUSE_ANY));
588: format_add(ft, "mouse_utf8_flag", "%d",
589: !!(wp->base.mode & MODE_MOUSE_UTF8));
1.19 nicm 590:
591: format_window_pane_tabs(ft, wp);
1.8 nicm 592: }
593:
1.19 nicm 594: /* Set default format keys for paste buffer. */
1.8 nicm 595: void
596: format_paste_buffer(struct format_tree *ft, struct paste_buffer *pb)
597: {
598: char *pb_print = paste_print(pb, 50);
599:
600: format_add(ft, "buffer_size", "%zu", pb->size);
601: format_add(ft, "buffer_sample", "%s", pb_print);
602:
1.9 nicm 603: free(pb_print);
1.1 nicm 604: }