xref: /openbsd-src/usr.bin/tmux/tmux.h (revision 097a140d792de8b2bbe59ad827d39eabf9b4280a)
1 /* $OpenBSD: tmux.h,v 1.1103 2021/04/12 09:36:12 nicm Exp $ */
2 
3 /*
4  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
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 #ifndef TMUX_H
20 #define TMUX_H
21 
22 #include <sys/time.h>
23 #include <sys/queue.h>
24 #include <sys/tree.h>
25 
26 #include <bitstring.h>
27 #include <event.h>
28 #include <limits.h>
29 #include <stdarg.h>
30 #include <stdint.h>
31 #include <stdio.h>
32 #include <termios.h>
33 
34 #include "xmalloc.h"
35 
36 extern char   **environ;
37 
38 struct args;
39 struct args_value;
40 struct client;
41 struct cmd;
42 struct cmd_find_state;
43 struct cmdq_item;
44 struct cmdq_list;
45 struct cmdq_state;
46 struct cmds;
47 struct control_state;
48 struct environ;
49 struct format_job_tree;
50 struct format_tree;
51 struct input_ctx;
52 struct job;
53 struct mode_tree_data;
54 struct mouse_event;
55 struct options;
56 struct options_array_item;
57 struct options_entry;
58 struct screen_write_citem;
59 struct screen_write_cline;
60 struct screen_write_ctx;
61 struct session;
62 struct tty_ctx;
63 struct tmuxpeer;
64 struct tmuxproc;
65 struct winlink;
66 
67 /* Client-server protocol version. */
68 #define PROTOCOL_VERSION 8
69 
70 /* Default configuration files and socket paths. */
71 #ifndef TMUX_CONF
72 #define TMUX_CONF "/etc/tmux.conf:~/.tmux.conf"
73 #endif
74 #ifndef TMUX_SOCK
75 #define TMUX_SOCK "$TMUX_TMPDIR:" _PATH_TMP
76 #endif
77 
78 /* Minimum layout cell size, NOT including border lines. */
79 #define PANE_MINIMUM 1
80 
81 /* Minimum and maximum window size. */
82 #define WINDOW_MINIMUM PANE_MINIMUM
83 #define WINDOW_MAXIMUM 10000
84 
85 /* Automatic name refresh interval, in microseconds. Must be < 1 second. */
86 #define NAME_INTERVAL 500000
87 
88 /* Default pixel cell sizes. */
89 #define DEFAULT_XPIXEL 16
90 #define DEFAULT_YPIXEL 32
91 
92 /* Attribute to make GCC check printf-like arguments. */
93 #define printflike(a, b) __attribute__ ((format (printf, a, b)))
94 
95 /* Number of items in array. */
96 #ifndef nitems
97 #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
98 #endif
99 
100 /* Alert option values. */
101 #define ALERT_NONE 0
102 #define ALERT_ANY 1
103 #define ALERT_CURRENT 2
104 #define ALERT_OTHER 3
105 
106 /* Visual option values. */
107 #define VISUAL_OFF 0
108 #define VISUAL_ON 1
109 #define VISUAL_BOTH 2
110 
111 /* Special key codes. */
112 #define KEYC_NONE            0x00ff000000000ULL
113 #define KEYC_UNKNOWN         0x00fe000000000ULL
114 #define KEYC_BASE            0x0001000000000ULL
115 #define KEYC_USER            0x0002000000000ULL
116 
117 /* Key modifier bits. */
118 #define KEYC_META            0x00100000000000ULL
119 #define KEYC_CTRL            0x00200000000000ULL
120 #define KEYC_SHIFT           0x00400000000000ULL
121 
122 /* Key flag bits. */
123 #define KEYC_LITERAL         0x01000000000000ULL
124 #define KEYC_KEYPAD          0x02000000000000ULL
125 #define KEYC_CURSOR          0x04000000000000ULL
126 #define KEYC_IMPLIED_META    0x08000000000000ULL
127 #define KEYC_BUILD_MODIFIERS 0x10000000000000ULL
128 
129 /* Masks for key bits. */
130 #define KEYC_MASK_MODIFIERS  0x00f00000000000ULL
131 #define KEYC_MASK_FLAGS      0xff000000000000ULL
132 #define KEYC_MASK_KEY        0x000fffffffffffULL
133 
134 /* Available user keys. */
135 #define KEYC_NUSER 1000
136 
137 /* Is this a mouse key? */
138 #define KEYC_IS_MOUSE(key) (((key) & KEYC_MASK_KEY) >= KEYC_MOUSE &&	\
139     ((key) & KEYC_MASK_KEY) < KEYC_BSPACE)
140 
141 /* Multiple click timeout. */
142 #define KEYC_CLICK_TIMEOUT 300
143 
144 /* Mouse key codes. */
145 #define KEYC_MOUSE_KEY(name)					\
146 	KEYC_ ## name ## _PANE,					\
147 	KEYC_ ## name ## _STATUS,				\
148 	KEYC_ ## name ## _STATUS_LEFT,				\
149 	KEYC_ ## name ## _STATUS_RIGHT,				\
150 	KEYC_ ## name ## _STATUS_DEFAULT,			\
151 	KEYC_ ## name ## _BORDER
152 #define KEYC_MOUSE_STRING(name, s)				\
153 	{ #s "Pane", KEYC_ ## name ## _PANE },			\
154 	{ #s "Status", KEYC_ ## name ## _STATUS },		\
155 	{ #s "StatusLeft", KEYC_ ## name ## _STATUS_LEFT },	\
156 	{ #s "StatusRight", KEYC_ ## name ## _STATUS_RIGHT },	\
157 	{ #s "StatusDefault", KEYC_ ## name ## _STATUS_DEFAULT }, \
158 	{ #s "Border", KEYC_ ## name ## _BORDER }
159 
160 /*
161  * A single key. This can be ASCII or Unicode or one of the keys starting at
162  * KEYC_BASE.
163  */
164 typedef unsigned long long key_code;
165 
166 /* Special key codes. */
167 enum {
168 	/* Focus events. */
169 	KEYC_FOCUS_IN = KEYC_BASE,
170 	KEYC_FOCUS_OUT,
171 
172 	/* "Any" key, used if not found in key table. */
173 	KEYC_ANY,
174 
175 	/* Paste brackets. */
176 	KEYC_PASTE_START,
177 	KEYC_PASTE_END,
178 
179 	/* Mouse keys. */
180 	KEYC_MOUSE, /* unclassified mouse event */
181 	KEYC_DRAGGING, /* dragging in progress */
182 	KEYC_DOUBLECLICK, /* double click complete */
183 	KEYC_MOUSE_KEY(MOUSEMOVE),
184 	KEYC_MOUSE_KEY(MOUSEDOWN1),
185 	KEYC_MOUSE_KEY(MOUSEDOWN2),
186 	KEYC_MOUSE_KEY(MOUSEDOWN3),
187 	KEYC_MOUSE_KEY(MOUSEUP1),
188 	KEYC_MOUSE_KEY(MOUSEUP2),
189 	KEYC_MOUSE_KEY(MOUSEUP3),
190 	KEYC_MOUSE_KEY(MOUSEDRAG1),
191 	KEYC_MOUSE_KEY(MOUSEDRAG2),
192 	KEYC_MOUSE_KEY(MOUSEDRAG3),
193 	KEYC_MOUSE_KEY(MOUSEDRAGEND1),
194 	KEYC_MOUSE_KEY(MOUSEDRAGEND2),
195 	KEYC_MOUSE_KEY(MOUSEDRAGEND3),
196 	KEYC_MOUSE_KEY(WHEELUP),
197 	KEYC_MOUSE_KEY(WHEELDOWN),
198 	KEYC_MOUSE_KEY(SECONDCLICK1),
199 	KEYC_MOUSE_KEY(SECONDCLICK2),
200 	KEYC_MOUSE_KEY(SECONDCLICK3),
201 	KEYC_MOUSE_KEY(DOUBLECLICK1),
202 	KEYC_MOUSE_KEY(DOUBLECLICK2),
203 	KEYC_MOUSE_KEY(DOUBLECLICK3),
204 	KEYC_MOUSE_KEY(TRIPLECLICK1),
205 	KEYC_MOUSE_KEY(TRIPLECLICK2),
206 	KEYC_MOUSE_KEY(TRIPLECLICK3),
207 
208 	/* Backspace key. */
209 	KEYC_BSPACE,
210 
211 	/* Function keys. */
212 	KEYC_F1,
213 	KEYC_F2,
214 	KEYC_F3,
215 	KEYC_F4,
216 	KEYC_F5,
217 	KEYC_F6,
218 	KEYC_F7,
219 	KEYC_F8,
220 	KEYC_F9,
221 	KEYC_F10,
222 	KEYC_F11,
223 	KEYC_F12,
224 	KEYC_IC,
225 	KEYC_DC,
226 	KEYC_HOME,
227 	KEYC_END,
228 	KEYC_NPAGE,
229 	KEYC_PPAGE,
230 	KEYC_BTAB,
231 
232 	/* Arrow keys. */
233 	KEYC_UP,
234 	KEYC_DOWN,
235 	KEYC_LEFT,
236 	KEYC_RIGHT,
237 
238 	/* Numeric keypad. */
239 	KEYC_KP_SLASH,
240 	KEYC_KP_STAR,
241 	KEYC_KP_MINUS,
242 	KEYC_KP_SEVEN,
243 	KEYC_KP_EIGHT,
244 	KEYC_KP_NINE,
245 	KEYC_KP_PLUS,
246 	KEYC_KP_FOUR,
247 	KEYC_KP_FIVE,
248 	KEYC_KP_SIX,
249 	KEYC_KP_ONE,
250 	KEYC_KP_TWO,
251 	KEYC_KP_THREE,
252 	KEYC_KP_ENTER,
253 	KEYC_KP_ZERO,
254 	KEYC_KP_PERIOD,
255 };
256 
257 /* Termcap codes. */
258 enum tty_code_code {
259 	TTYC_ACSC,
260 	TTYC_AM,
261 	TTYC_AX,
262 	TTYC_BCE,
263 	TTYC_BEL,
264 	TTYC_BIDI,
265 	TTYC_BLINK,
266 	TTYC_BOLD,
267 	TTYC_CIVIS,
268 	TTYC_CLEAR,
269 	TTYC_CLMG,
270 	TTYC_CMG,
271 	TTYC_CNORM,
272 	TTYC_COLORS,
273 	TTYC_CR,
274 	TTYC_CS,
275 	TTYC_CSR,
276 	TTYC_CUB,
277 	TTYC_CUB1,
278 	TTYC_CUD,
279 	TTYC_CUD1,
280 	TTYC_CUF,
281 	TTYC_CUF1,
282 	TTYC_CUP,
283 	TTYC_CUU,
284 	TTYC_CUU1,
285 	TTYC_CVVIS,
286 	TTYC_DCH,
287 	TTYC_DCH1,
288 	TTYC_DIM,
289 	TTYC_DL,
290 	TTYC_DL1,
291 	TTYC_DSBP,
292 	TTYC_DSEKS,
293 	TTYC_DSFCS,
294 	TTYC_DSMG,
295 	TTYC_E3,
296 	TTYC_ECH,
297 	TTYC_ED,
298 	TTYC_EL,
299 	TTYC_EL1,
300 	TTYC_ENACS,
301 	TTYC_ENBP,
302 	TTYC_ENEKS,
303 	TTYC_ENFCS,
304 	TTYC_ENMG,
305 	TTYC_FSL,
306 	TTYC_HOME,
307 	TTYC_HPA,
308 	TTYC_ICH,
309 	TTYC_ICH1,
310 	TTYC_IL,
311 	TTYC_IL1,
312 	TTYC_INDN,
313 	TTYC_INVIS,
314 	TTYC_KCBT,
315 	TTYC_KCUB1,
316 	TTYC_KCUD1,
317 	TTYC_KCUF1,
318 	TTYC_KCUU1,
319 	TTYC_KDC2,
320 	TTYC_KDC3,
321 	TTYC_KDC4,
322 	TTYC_KDC5,
323 	TTYC_KDC6,
324 	TTYC_KDC7,
325 	TTYC_KDCH1,
326 	TTYC_KDN2,
327 	TTYC_KDN3,
328 	TTYC_KDN4,
329 	TTYC_KDN5,
330 	TTYC_KDN6,
331 	TTYC_KDN7,
332 	TTYC_KEND,
333 	TTYC_KEND2,
334 	TTYC_KEND3,
335 	TTYC_KEND4,
336 	TTYC_KEND5,
337 	TTYC_KEND6,
338 	TTYC_KEND7,
339 	TTYC_KF1,
340 	TTYC_KF10,
341 	TTYC_KF11,
342 	TTYC_KF12,
343 	TTYC_KF13,
344 	TTYC_KF14,
345 	TTYC_KF15,
346 	TTYC_KF16,
347 	TTYC_KF17,
348 	TTYC_KF18,
349 	TTYC_KF19,
350 	TTYC_KF2,
351 	TTYC_KF20,
352 	TTYC_KF21,
353 	TTYC_KF22,
354 	TTYC_KF23,
355 	TTYC_KF24,
356 	TTYC_KF25,
357 	TTYC_KF26,
358 	TTYC_KF27,
359 	TTYC_KF28,
360 	TTYC_KF29,
361 	TTYC_KF3,
362 	TTYC_KF30,
363 	TTYC_KF31,
364 	TTYC_KF32,
365 	TTYC_KF33,
366 	TTYC_KF34,
367 	TTYC_KF35,
368 	TTYC_KF36,
369 	TTYC_KF37,
370 	TTYC_KF38,
371 	TTYC_KF39,
372 	TTYC_KF4,
373 	TTYC_KF40,
374 	TTYC_KF41,
375 	TTYC_KF42,
376 	TTYC_KF43,
377 	TTYC_KF44,
378 	TTYC_KF45,
379 	TTYC_KF46,
380 	TTYC_KF47,
381 	TTYC_KF48,
382 	TTYC_KF49,
383 	TTYC_KF5,
384 	TTYC_KF50,
385 	TTYC_KF51,
386 	TTYC_KF52,
387 	TTYC_KF53,
388 	TTYC_KF54,
389 	TTYC_KF55,
390 	TTYC_KF56,
391 	TTYC_KF57,
392 	TTYC_KF58,
393 	TTYC_KF59,
394 	TTYC_KF6,
395 	TTYC_KF60,
396 	TTYC_KF61,
397 	TTYC_KF62,
398 	TTYC_KF63,
399 	TTYC_KF7,
400 	TTYC_KF8,
401 	TTYC_KF9,
402 	TTYC_KHOM2,
403 	TTYC_KHOM3,
404 	TTYC_KHOM4,
405 	TTYC_KHOM5,
406 	TTYC_KHOM6,
407 	TTYC_KHOM7,
408 	TTYC_KHOME,
409 	TTYC_KIC2,
410 	TTYC_KIC3,
411 	TTYC_KIC4,
412 	TTYC_KIC5,
413 	TTYC_KIC6,
414 	TTYC_KIC7,
415 	TTYC_KICH1,
416 	TTYC_KIND,
417 	TTYC_KLFT2,
418 	TTYC_KLFT3,
419 	TTYC_KLFT4,
420 	TTYC_KLFT5,
421 	TTYC_KLFT6,
422 	TTYC_KLFT7,
423 	TTYC_KMOUS,
424 	TTYC_KNP,
425 	TTYC_KNXT2,
426 	TTYC_KNXT3,
427 	TTYC_KNXT4,
428 	TTYC_KNXT5,
429 	TTYC_KNXT6,
430 	TTYC_KNXT7,
431 	TTYC_KPP,
432 	TTYC_KPRV2,
433 	TTYC_KPRV3,
434 	TTYC_KPRV4,
435 	TTYC_KPRV5,
436 	TTYC_KPRV6,
437 	TTYC_KPRV7,
438 	TTYC_KRI,
439 	TTYC_KRIT2,
440 	TTYC_KRIT3,
441 	TTYC_KRIT4,
442 	TTYC_KRIT5,
443 	TTYC_KRIT6,
444 	TTYC_KRIT7,
445 	TTYC_KUP2,
446 	TTYC_KUP3,
447 	TTYC_KUP4,
448 	TTYC_KUP5,
449 	TTYC_KUP6,
450 	TTYC_KUP7,
451 	TTYC_MS,
452 	TTYC_OL,
453 	TTYC_OP,
454 	TTYC_REV,
455 	TTYC_RGB,
456 	TTYC_RI,
457 	TTYC_RIN,
458 	TTYC_RMACS,
459 	TTYC_RMCUP,
460 	TTYC_RMKX,
461 	TTYC_SE,
462 	TTYC_SETAB,
463 	TTYC_SETAF,
464 	TTYC_SETAL,
465 	TTYC_SETRGBB,
466 	TTYC_SETRGBF,
467 	TTYC_SETULC,
468 	TTYC_SGR0,
469 	TTYC_SITM,
470 	TTYC_SMACS,
471 	TTYC_SMCUP,
472 	TTYC_SMKX,
473 	TTYC_SMOL,
474 	TTYC_SMSO,
475 	TTYC_SMUL,
476 	TTYC_SMULX,
477 	TTYC_SMXX,
478 	TTYC_SS,
479 	TTYC_SYNC,
480 	TTYC_TC,
481 	TTYC_TSL,
482 	TTYC_U8,
483 	TTYC_VPA,
484 	TTYC_XT
485 };
486 
487 /* Message codes. */
488 enum msgtype {
489 	MSG_VERSION = 12,
490 
491 	MSG_IDENTIFY_FLAGS = 100,
492 	MSG_IDENTIFY_TERM,
493 	MSG_IDENTIFY_TTYNAME,
494 	MSG_IDENTIFY_OLDCWD, /* unused */
495 	MSG_IDENTIFY_STDIN,
496 	MSG_IDENTIFY_ENVIRON,
497 	MSG_IDENTIFY_DONE,
498 	MSG_IDENTIFY_CLIENTPID,
499 	MSG_IDENTIFY_CWD,
500 	MSG_IDENTIFY_FEATURES,
501 	MSG_IDENTIFY_STDOUT,
502 	MSG_IDENTIFY_LONGFLAGS,
503 	MSG_IDENTIFY_TERMINFO,
504 
505 	MSG_COMMAND = 200,
506 	MSG_DETACH,
507 	MSG_DETACHKILL,
508 	MSG_EXIT,
509 	MSG_EXITED,
510 	MSG_EXITING,
511 	MSG_LOCK,
512 	MSG_READY,
513 	MSG_RESIZE,
514 	MSG_SHELL,
515 	MSG_SHUTDOWN,
516 	MSG_OLDSTDERR, /* unused */
517 	MSG_OLDSTDIN, /* unused */
518 	MSG_OLDSTDOUT, /* unused */
519 	MSG_SUSPEND,
520 	MSG_UNLOCK,
521 	MSG_WAKEUP,
522 	MSG_EXEC,
523 	MSG_FLAGS,
524 
525 	MSG_READ_OPEN = 300,
526 	MSG_READ,
527 	MSG_READ_DONE,
528 	MSG_WRITE_OPEN,
529 	MSG_WRITE,
530 	MSG_WRITE_READY,
531 	MSG_WRITE_CLOSE
532 };
533 
534 /*
535  * Message data.
536  *
537  * Don't forget to bump PROTOCOL_VERSION if any of these change!
538  */
539 struct msg_command {
540 	int	argc;
541 }; /* followed by packed argv */
542 
543 struct msg_read_open {
544 	int	stream;
545 	int	fd;
546 }; /* followed by path */
547 
548 struct msg_read_data {
549 	int	stream;
550 };
551 
552 struct msg_read_done {
553 	int	stream;
554 	int	error;
555 };
556 
557 struct msg_write_open {
558 	int	stream;
559 	int	fd;
560 	int	flags;
561 }; /* followed by path */
562 
563 struct msg_write_data {
564 	int	stream;
565 }; /* followed by data */
566 
567 struct msg_write_ready {
568 	int	stream;
569 	int	error;
570 };
571 
572 struct msg_write_close {
573 	int	stream;
574 };
575 
576 /* Mode keys. */
577 #define MODEKEY_EMACS 0
578 #define MODEKEY_VI 1
579 
580 /* Modes. */
581 #define MODE_CURSOR 0x1
582 #define MODE_INSERT 0x2
583 #define MODE_KCURSOR 0x4
584 #define MODE_KKEYPAD 0x8
585 #define MODE_WRAP 0x10
586 #define MODE_MOUSE_STANDARD 0x20
587 #define MODE_MOUSE_BUTTON 0x40
588 #define MODE_BLINKING 0x80
589 #define MODE_MOUSE_UTF8 0x100
590 #define MODE_MOUSE_SGR 0x200
591 #define MODE_BRACKETPASTE 0x400
592 #define MODE_FOCUSON 0x800
593 #define MODE_MOUSE_ALL 0x1000
594 #define MODE_ORIGIN 0x2000
595 #define MODE_CRLF 0x4000
596 #define MODE_KEXTENDED 0x8000
597 
598 #define ALL_MODES 0xffffff
599 #define ALL_MOUSE_MODES (MODE_MOUSE_STANDARD|MODE_MOUSE_BUTTON|MODE_MOUSE_ALL)
600 #define MOTION_MOUSE_MODES (MODE_MOUSE_BUTTON|MODE_MOUSE_ALL)
601 
602 /* A single UTF-8 character. */
603 typedef u_int utf8_char;
604 
605 /*
606  * An expanded UTF-8 character. UTF8_SIZE must be big enough to hold combining
607  * characters as well. It can't be more than 32 bytes without changes to how
608  * characters are stored.
609  */
610 #define UTF8_SIZE 21
611 struct utf8_data {
612 	u_char	data[UTF8_SIZE];
613 
614 	u_char	have;
615 	u_char	size;
616 
617 	u_char	width;	/* 0xff if invalid */
618 };
619 enum utf8_state {
620 	UTF8_MORE,
621 	UTF8_DONE,
622 	UTF8_ERROR
623 };
624 
625 /* Colour flags. */
626 #define COLOUR_FLAG_256 0x01000000
627 #define COLOUR_FLAG_RGB 0x02000000
628 
629 /* Special colours. */
630 #define COLOUR_DEFAULT(c) ((c) == 8 || (c) == 9)
631 
632 /* Grid attributes. Anything above 0xff is stored in an extended cell. */
633 #define GRID_ATTR_BRIGHT 0x1
634 #define GRID_ATTR_DIM 0x2
635 #define GRID_ATTR_UNDERSCORE 0x4
636 #define GRID_ATTR_BLINK 0x8
637 #define GRID_ATTR_REVERSE 0x10
638 #define GRID_ATTR_HIDDEN 0x20
639 #define GRID_ATTR_ITALICS 0x40
640 #define GRID_ATTR_CHARSET 0x80	/* alternative character set */
641 #define GRID_ATTR_STRIKETHROUGH 0x100
642 #define GRID_ATTR_UNDERSCORE_2 0x200
643 #define GRID_ATTR_UNDERSCORE_3 0x400
644 #define GRID_ATTR_UNDERSCORE_4 0x800
645 #define GRID_ATTR_UNDERSCORE_5 0x1000
646 #define GRID_ATTR_OVERLINE 0x2000
647 
648 /* All underscore attributes. */
649 #define GRID_ATTR_ALL_UNDERSCORE \
650 	(GRID_ATTR_UNDERSCORE|	 \
651 	 GRID_ATTR_UNDERSCORE_2| \
652 	 GRID_ATTR_UNDERSCORE_3| \
653 	 GRID_ATTR_UNDERSCORE_4| \
654 	 GRID_ATTR_UNDERSCORE_5)
655 
656 /* Grid flags. */
657 #define GRID_FLAG_FG256 0x1
658 #define GRID_FLAG_BG256 0x2
659 #define GRID_FLAG_PADDING 0x4
660 #define GRID_FLAG_EXTENDED 0x8
661 #define GRID_FLAG_SELECTED 0x10
662 #define GRID_FLAG_NOPALETTE 0x20
663 #define GRID_FLAG_CLEARED 0x40
664 
665 /* Grid line flags. */
666 #define GRID_LINE_WRAPPED 0x1
667 #define GRID_LINE_EXTENDED 0x2
668 #define GRID_LINE_DEAD 0x4
669 
670 /* Grid cell data. */
671 struct grid_cell {
672 	struct utf8_data	data;
673 	u_short			attr;
674 	u_char			flags;
675 	int			fg;
676 	int			bg;
677 	int			us;
678 };
679 
680 /* Grid extended cell entry. */
681 struct grid_extd_entry {
682 	utf8_char		data;
683 	u_short			attr;
684 	u_char			flags;
685 	int			fg;
686 	int			bg;
687 	int			us;
688 } __packed;
689 
690 /* Grid cell entry. */
691 struct grid_cell_entry {
692 	u_char			flags;
693 	union {
694 		u_int		offset;
695 		struct {
696 			u_char	attr;
697 			u_char	fg;
698 			u_char	bg;
699 			u_char	data;
700 		} data;
701 	};
702 } __packed;
703 
704 /* Grid line. */
705 struct grid_line {
706 	u_int			 cellused;
707 	u_int			 cellsize;
708 	struct grid_cell_entry	*celldata;
709 
710 	u_int			 extdsize;
711 	struct grid_extd_entry	*extddata;
712 
713 	int			 flags;
714 } __packed;
715 
716 /* Entire grid of cells. */
717 struct grid {
718 	int			 flags;
719 #define GRID_HISTORY 0x1 /* scroll lines into history */
720 
721 	u_int			 sx;
722 	u_int			 sy;
723 
724 	u_int			 hscrolled;
725 	u_int			 hsize;
726 	u_int			 hlimit;
727 
728 	struct grid_line	*linedata;
729 };
730 
731 /* Virtual cursor in a grid. */
732 struct grid_reader {
733 	struct grid	*gd;
734 	u_int		 cx;
735 	u_int		 cy;
736 };
737 
738 /* Style alignment. */
739 enum style_align {
740 	STYLE_ALIGN_DEFAULT,
741 	STYLE_ALIGN_LEFT,
742 	STYLE_ALIGN_CENTRE,
743 	STYLE_ALIGN_RIGHT,
744 	STYLE_ALIGN_ABSOLUTE_CENTRE
745 };
746 
747 /* Style list. */
748 enum style_list {
749 	STYLE_LIST_OFF,
750 	STYLE_LIST_ON,
751 	STYLE_LIST_FOCUS,
752 	STYLE_LIST_LEFT_MARKER,
753 	STYLE_LIST_RIGHT_MARKER,
754 };
755 
756 /* Style range. */
757 enum style_range_type {
758 	STYLE_RANGE_NONE,
759 	STYLE_RANGE_LEFT,
760 	STYLE_RANGE_RIGHT,
761 	STYLE_RANGE_WINDOW
762 };
763 struct style_range {
764 	enum style_range_type	 type;
765 	u_int			 argument;
766 
767 	u_int			 start;
768 	u_int			 end; /* not included */
769 
770 	TAILQ_ENTRY(style_range) entry;
771 };
772 TAILQ_HEAD(style_ranges, style_range);
773 
774 /* Style default. */
775 enum style_default_type {
776 	STYLE_DEFAULT_BASE,
777 	STYLE_DEFAULT_PUSH,
778 	STYLE_DEFAULT_POP
779 };
780 
781 /* Style option. */
782 struct style {
783 	struct grid_cell	gc;
784 	int			ignore;
785 
786 	int			fill;
787 	enum style_align	align;
788 	enum style_list		list;
789 
790 	enum style_range_type	range_type;
791 	u_int			range_argument;
792 
793 	enum style_default_type	default_type;
794 };
795 
796 /* Virtual screen. */
797 struct screen_sel;
798 struct screen_titles;
799 struct screen {
800 	char				*title;
801 	char				*path;
802 	struct screen_titles		*titles;
803 
804 	struct grid			*grid;	  /* grid data */
805 
806 	u_int				 cx;	  /* cursor x */
807 	u_int				 cy;	  /* cursor y */
808 
809 	u_int				 cstyle;  /* cursor style */
810 	char				*ccolour; /* cursor colour string */
811 
812 	u_int				 rupper;  /* scroll region top */
813 	u_int				 rlower;  /* scroll region bottom */
814 
815 	int				 mode;
816 
817 	u_int				 saved_cx;
818 	u_int				 saved_cy;
819 	struct grid			*saved_grid;
820 	struct grid_cell		 saved_cell;
821 	int				 saved_flags;
822 
823 	bitstr_t			*tabs;
824 	struct screen_sel		*sel;
825 
826 	struct screen_write_cline	*write_list;
827 };
828 
829 /* Screen write context. */
830 typedef void (*screen_write_init_ctx_cb)(struct screen_write_ctx *,
831     struct tty_ctx *);
832 struct screen_write_ctx {
833 	struct window_pane		*wp;
834 	struct screen			*s;
835 
836 	int				 flags;
837 #define SCREEN_WRITE_SYNC 0x1
838 
839 	screen_write_init_ctx_cb	 init_ctx_cb;
840 	void				*arg;
841 
842 	struct screen_write_citem	*item;
843 	u_int				 scrolled;
844 	u_int				 bg;
845 };
846 
847 /* Screen redraw context. */
848 struct screen_redraw_ctx {
849 	struct client	*c;
850 
851 	u_int		 statuslines;
852 	int		 statustop;
853 
854 	int		 pane_status;
855 	int		 pane_lines;
856 
857 	u_int		 sx;
858 	u_int		 sy;
859 	u_int		 ox;
860 	u_int		 oy;
861 };
862 
863 /* Screen size. */
864 #define screen_size_x(s) ((s)->grid->sx)
865 #define screen_size_y(s) ((s)->grid->sy)
866 #define screen_hsize(s) ((s)->grid->hsize)
867 #define screen_hlimit(s) ((s)->grid->hlimit)
868 
869 /* Menu. */
870 struct menu_item {
871 	const char	*name;
872 	key_code	 key;
873 	const char	*command;
874 };
875 struct menu {
876 	const char		*title;
877 	struct menu_item	*items;
878 	u_int			 count;
879 	u_int			 width;
880 };
881 typedef void (*menu_choice_cb)(struct menu *, u_int, key_code, void *);
882 
883 /*
884  * Window mode. Windows can be in several modes and this is used to call the
885  * right function to handle input and output.
886  */
887 struct window_mode_entry;
888 struct window_mode {
889 	const char	*name;
890 	const char	*default_format;
891 
892 	struct screen	*(*init)(struct window_mode_entry *,
893 			     struct cmd_find_state *, struct args *);
894 	void		 (*free)(struct window_mode_entry *);
895 	void		 (*resize)(struct window_mode_entry *, u_int, u_int);
896 	void		 (*update)(struct window_mode_entry *);
897 	void		 (*key)(struct window_mode_entry *, struct client *,
898 			     struct session *, struct winlink *, key_code,
899 			     struct mouse_event *);
900 
901 	const char	*(*key_table)(struct window_mode_entry *);
902 	void		 (*command)(struct window_mode_entry *, struct client *,
903 			     struct session *, struct winlink *, struct args *,
904 			     struct mouse_event *);
905 	void		 (*formats)(struct window_mode_entry *,
906 			     struct format_tree *);
907 };
908 
909 /* Active window mode. */
910 struct window_mode_entry {
911 	struct window_pane		*wp;
912 	struct window_pane		*swp;
913 
914 	const struct window_mode	*mode;
915 	void				*data;
916 
917 	struct screen			*screen;
918 	u_int				 prefix;
919 
920 	TAILQ_ENTRY (window_mode_entry)	 entry;
921 };
922 
923 /* Offsets into pane buffer. */
924 struct window_pane_offset {
925 	size_t	used;
926 };
927 
928 /* Child window structure. */
929 struct window_pane {
930 	u_int		 id;
931 	u_int		 active_point;
932 
933 	struct window	*window;
934 	struct options	*options;
935 
936 	struct layout_cell *layout_cell;
937 	struct layout_cell *saved_layout_cell;
938 
939 	u_int		 sx;
940 	u_int		 sy;
941 
942 	u_int		 xoff;
943 	u_int		 yoff;
944 
945 	int		 fg;
946 	int		 bg;
947 
948 	int		 flags;
949 #define PANE_REDRAW 0x1
950 #define PANE_DROP 0x2
951 #define PANE_FOCUSED 0x4
952 #define PANE_RESIZE 0x8
953 #define PANE_RESIZEFORCE 0x10
954 #define PANE_FOCUSPUSH 0x20
955 #define PANE_INPUTOFF 0x40
956 #define PANE_CHANGED 0x80
957 #define PANE_EXITED 0x100
958 #define PANE_STATUSREADY 0x200
959 #define PANE_STATUSDRAWN 0x400
960 #define PANE_EMPTY 0x800
961 #define PANE_STYLECHANGED 0x1000
962 #define PANE_RESIZENOW 0x2000
963 
964 	int		 argc;
965 	char	       **argv;
966 	char		*shell;
967 	char		*cwd;
968 
969 	pid_t		 pid;
970 	char		 tty[TTY_NAME_MAX];
971 	int		 status;
972 
973 	int		 fd;
974 	struct bufferevent *event;
975 
976 	struct window_pane_offset offset;
977 	size_t		 base_offset;
978 
979 	struct event	 resize_timer;
980 	struct event	 force_timer;
981 
982 	struct input_ctx *ictx;
983 
984 	struct grid_cell cached_gc;
985 	struct grid_cell cached_active_gc;
986 	int		*palette;
987 
988 	int		 pipe_fd;
989 	struct bufferevent *pipe_event;
990 	struct window_pane_offset pipe_offset;
991 
992 	struct screen	*screen;
993 	struct screen	 base;
994 
995 	struct screen	 status_screen;
996 	size_t		 status_size;
997 
998 	TAILQ_HEAD (, window_mode_entry) modes;
999 
1000 	char		*searchstr;
1001 	int		 searchregex;
1002 
1003 	int		 border_gc_set;
1004 	struct grid_cell border_gc;
1005 
1006 	TAILQ_ENTRY(window_pane) entry;
1007 	RB_ENTRY(window_pane) tree_entry;
1008 };
1009 TAILQ_HEAD(window_panes, window_pane);
1010 RB_HEAD(window_pane_tree, window_pane);
1011 
1012 /* Window structure. */
1013 struct window {
1014 	u_int		 id;
1015 	void		*latest;
1016 
1017 	char		*name;
1018 	struct event	 name_event;
1019 	struct timeval	 name_time;
1020 
1021 	struct event	 alerts_timer;
1022 	struct event	 offset_timer;
1023 
1024 	struct timeval	 activity_time;
1025 
1026 	struct window_pane *active;
1027 	struct window_pane *last;
1028 	struct window_panes panes;
1029 
1030 	int		 lastlayout;
1031 	struct layout_cell *layout_root;
1032 	struct layout_cell *saved_layout_root;
1033 	char		*old_layout;
1034 
1035 	u_int		 sx;
1036 	u_int		 sy;
1037 	u_int		 xpixel;
1038 	u_int		 ypixel;
1039 
1040 	u_int		 new_sx;
1041 	u_int		 new_sy;
1042 	u_int		 new_xpixel;
1043 	u_int		 new_ypixel;
1044 
1045 	int		 flags;
1046 #define WINDOW_BELL 0x1
1047 #define WINDOW_ACTIVITY 0x2
1048 #define WINDOW_SILENCE 0x4
1049 #define WINDOW_ZOOMED 0x8
1050 #define WINDOW_WASZOOMED 0x10
1051 #define WINDOW_RESIZE 0x20
1052 #define WINDOW_ALERTFLAGS (WINDOW_BELL|WINDOW_ACTIVITY|WINDOW_SILENCE)
1053 
1054 	int		 alerts_queued;
1055 	TAILQ_ENTRY(window) alerts_entry;
1056 
1057 	struct options	*options;
1058 
1059 	u_int		 references;
1060 	TAILQ_HEAD(, winlink) winlinks;
1061 
1062 	RB_ENTRY(window) entry;
1063 };
1064 RB_HEAD(windows, window);
1065 
1066 /* Entry on local window list. */
1067 struct winlink {
1068 	int		 idx;
1069 	struct session	*session;
1070 	struct window	*window;
1071 
1072 	int		 flags;
1073 #define WINLINK_BELL 0x1
1074 #define WINLINK_ACTIVITY 0x2
1075 #define WINLINK_SILENCE 0x4
1076 #define WINLINK_ALERTFLAGS (WINLINK_BELL|WINLINK_ACTIVITY|WINLINK_SILENCE)
1077 
1078 	RB_ENTRY(winlink) entry;
1079 	TAILQ_ENTRY(winlink) wentry;
1080 	TAILQ_ENTRY(winlink) sentry;
1081 };
1082 RB_HEAD(winlinks, winlink);
1083 TAILQ_HEAD(winlink_stack, winlink);
1084 
1085 /* Window size option. */
1086 #define WINDOW_SIZE_LARGEST 0
1087 #define WINDOW_SIZE_SMALLEST 1
1088 #define WINDOW_SIZE_MANUAL 2
1089 #define WINDOW_SIZE_LATEST 3
1090 
1091 /* Pane border status option. */
1092 #define PANE_STATUS_OFF 0
1093 #define PANE_STATUS_TOP 1
1094 #define PANE_STATUS_BOTTOM 2
1095 
1096 /* Pane border lines option. */
1097 #define PANE_LINES_SINGLE 0
1098 #define PANE_LINES_DOUBLE 1
1099 #define PANE_LINES_HEAVY 2
1100 #define PANE_LINES_SIMPLE 3
1101 #define PANE_LINES_NUMBER 4
1102 
1103 /* Layout direction. */
1104 enum layout_type {
1105 	LAYOUT_LEFTRIGHT,
1106 	LAYOUT_TOPBOTTOM,
1107 	LAYOUT_WINDOWPANE
1108 };
1109 
1110 /* Layout cells queue. */
1111 TAILQ_HEAD(layout_cells, layout_cell);
1112 
1113 /* Layout cell. */
1114 struct layout_cell {
1115 	enum layout_type type;
1116 
1117 	struct layout_cell *parent;
1118 
1119 	u_int		 sx;
1120 	u_int		 sy;
1121 
1122 	u_int		 xoff;
1123 	u_int		 yoff;
1124 
1125 	struct window_pane *wp;
1126 	struct layout_cells cells;
1127 
1128 	TAILQ_ENTRY(layout_cell) entry;
1129 };
1130 
1131 /* Environment variable. */
1132 struct environ_entry {
1133 	char		*name;
1134 	char		*value;
1135 
1136 	int		 flags;
1137 #define ENVIRON_HIDDEN 0x1
1138 
1139 	RB_ENTRY(environ_entry) entry;
1140 };
1141 
1142 /* Client session. */
1143 struct session_group {
1144 	const char		*name;
1145 	TAILQ_HEAD(, session)	 sessions;
1146 
1147 	RB_ENTRY(session_group)	 entry;
1148 };
1149 RB_HEAD(session_groups, session_group);
1150 
1151 struct session {
1152 	u_int		 id;
1153 
1154 	char		*name;
1155 	const char	*cwd;
1156 
1157 	struct timeval	 creation_time;
1158 	struct timeval	 last_attached_time;
1159 	struct timeval	 activity_time;
1160 	struct timeval	 last_activity_time;
1161 
1162 	struct event	 lock_timer;
1163 
1164 	struct winlink	*curw;
1165 	struct winlink_stack lastw;
1166 	struct winlinks	 windows;
1167 
1168 	int		 statusat;
1169 	u_int		 statuslines;
1170 
1171 	struct options	*options;
1172 
1173 #define SESSION_PASTING 0x1
1174 #define SESSION_ALERTED 0x2
1175 	int		 flags;
1176 
1177 	u_int		 attached;
1178 
1179 	struct termios	*tio;
1180 
1181 	struct environ	*environ;
1182 
1183 	int		 references;
1184 
1185 	TAILQ_ENTRY(session) gentry;
1186 	RB_ENTRY(session)    entry;
1187 };
1188 RB_HEAD(sessions, session);
1189 
1190 /* Mouse button masks. */
1191 #define MOUSE_MASK_BUTTONS 3
1192 #define MOUSE_MASK_SHIFT 4
1193 #define MOUSE_MASK_META 8
1194 #define MOUSE_MASK_CTRL 16
1195 #define MOUSE_MASK_DRAG 32
1196 #define MOUSE_MASK_WHEEL 64
1197 
1198 /* Mouse wheel states. */
1199 #define MOUSE_WHEEL_UP 0
1200 #define MOUSE_WHEEL_DOWN 1
1201 
1202 /* Mouse helpers. */
1203 #define MOUSE_BUTTONS(b) ((b) & MOUSE_MASK_BUTTONS)
1204 #define MOUSE_WHEEL(b) ((b) & MOUSE_MASK_WHEEL)
1205 #define MOUSE_DRAG(b) ((b) & MOUSE_MASK_DRAG)
1206 #define MOUSE_RELEASE(b) (((b) & MOUSE_MASK_BUTTONS) == 3)
1207 
1208 /* Mouse input. */
1209 struct mouse_event {
1210 	int		valid;
1211 	int		ignore;
1212 
1213 	key_code	key;
1214 
1215 	int		statusat;
1216 	u_int		statuslines;
1217 
1218 	u_int		x;
1219 	u_int		y;
1220 	u_int		b;
1221 
1222 	u_int		lx;
1223 	u_int		ly;
1224 	u_int		lb;
1225 
1226 	u_int		ox;
1227 	u_int		oy;
1228 
1229 	int		s;
1230 	int		w;
1231 	int		wp;
1232 
1233 	u_int		sgr_type;
1234 	u_int		sgr_b;
1235 };
1236 
1237 /* Key event. */
1238 struct key_event {
1239 	key_code		key;
1240 	struct mouse_event	m;
1241 };
1242 
1243 /* TTY information. */
1244 struct tty_key {
1245 	char		 ch;
1246 	key_code	 key;
1247 
1248 	struct tty_key	*left;
1249 	struct tty_key	*right;
1250 
1251 	struct tty_key	*next;
1252 };
1253 
1254 struct tty_code;
1255 struct tty_term {
1256 	char		*name;
1257 	struct tty	*tty;
1258 	int		 features;
1259 
1260 	char		 acs[UCHAR_MAX + 1][2];
1261 
1262 	struct tty_code	*codes;
1263 
1264 #define TERM_256COLOURS 0x1
1265 #define TERM_NOAM 0x2
1266 #define TERM_DECSLRM 0x4
1267 #define TERM_DECFRA 0x8
1268 #define TERM_RGBCOLOURS 0x10
1269 #define TERM_VT100LIKE 0x20
1270 	int		 flags;
1271 
1272 	LIST_ENTRY(tty_term) entry;
1273 };
1274 LIST_HEAD(tty_terms, tty_term);
1275 
1276 struct tty {
1277 	struct client	*client;
1278 	struct event	 start_timer;
1279 
1280 	u_int		 sx;
1281 	u_int		 sy;
1282 	u_int		 xpixel;
1283 	u_int		 ypixel;
1284 
1285 	u_int		 cx;
1286 	u_int		 cy;
1287 	u_int		 cstyle;
1288 	char		*ccolour;
1289 
1290 	int		 oflag;
1291 	u_int		 oox;
1292 	u_int		 ooy;
1293 	u_int		 osx;
1294 	u_int		 osy;
1295 
1296 	int		 mode;
1297 
1298 	u_int		 rlower;
1299 	u_int		 rupper;
1300 
1301 	u_int		 rleft;
1302 	u_int		 rright;
1303 
1304 	struct event	 event_in;
1305 	struct evbuffer	*in;
1306 	struct event	 event_out;
1307 	struct evbuffer	*out;
1308 	struct event	 timer;
1309 	size_t		 discarded;
1310 
1311 	struct termios	 tio;
1312 
1313 	struct grid_cell cell;
1314 	struct grid_cell last_cell;
1315 
1316 #define TTY_NOCURSOR 0x1
1317 #define TTY_FREEZE 0x2
1318 #define TTY_TIMER 0x4
1319 /* 0x8 unused */
1320 #define TTY_STARTED 0x10
1321 #define TTY_OPENED 0x20
1322 /* 0x40 unused */
1323 #define TTY_BLOCK 0x80
1324 #define TTY_HAVEDA 0x100
1325 #define TTY_HAVEXDA 0x200
1326 #define TTY_SYNCING 0x400
1327 	int		 flags;
1328 
1329 	struct tty_term	*term;
1330 
1331 	u_int		 mouse_last_x;
1332 	u_int		 mouse_last_y;
1333 	u_int		 mouse_last_b;
1334 	int		 mouse_drag_flag;
1335 	void		(*mouse_drag_update)(struct client *,
1336 			    struct mouse_event *);
1337 	void		(*mouse_drag_release)(struct client *,
1338 			    struct mouse_event *);
1339 
1340 	struct event	 key_timer;
1341 	struct tty_key	*key_tree;
1342 };
1343 
1344 /* TTY command context. */
1345 typedef void (*tty_ctx_redraw_cb)(const struct tty_ctx *);
1346 typedef int (*tty_ctx_set_client_cb)(struct tty_ctx *, struct client *);
1347 struct tty_ctx {
1348 	struct screen		*s;
1349 
1350 	tty_ctx_redraw_cb	 redraw_cb;
1351 	tty_ctx_set_client_cb	 set_client_cb;
1352 	void			*arg;
1353 
1354 	const struct grid_cell	*cell;
1355 	int			 wrapped;
1356 
1357 	u_int			 num;
1358 	void			*ptr;
1359 
1360 	/*
1361 	 * Cursor and region position before the screen was updated - this is
1362 	 * where the command should be applied; the values in the screen have
1363 	 * already been updated.
1364 	 */
1365 	u_int		 ocx;
1366 	u_int		 ocy;
1367 
1368 	u_int		 orupper;
1369 	u_int		 orlower;
1370 
1371 	/* Target region (usually pane) offset and size. */
1372 	u_int		 xoff;
1373 	u_int		 yoff;
1374 	u_int		 rxoff;
1375 	u_int		 ryoff;
1376 	u_int		 sx;
1377 	u_int		 sy;
1378 
1379 	/* The background colour used for clearing (erasing). */
1380 	u_int		 bg;
1381 
1382 	/* The default colours and palette. */
1383 	struct grid_cell defaults;
1384 	int		*palette;
1385 
1386 	/* Containing region (usually window) offset and size. */
1387 	int		 bigger;
1388 	u_int		 wox;
1389 	u_int		 woy;
1390 	u_int		 wsx;
1391 	u_int		 wsy;
1392 };
1393 
1394 /* Saved message entry. */
1395 struct message_entry {
1396 	char				*msg;
1397 	u_int				 msg_num;
1398 	struct timeval			 msg_time;
1399 
1400 	TAILQ_ENTRY(message_entry)	 entry;
1401 };
1402 TAILQ_HEAD(message_list, message_entry);
1403 
1404 /* Parsed arguments structures. */
1405 struct args_entry;
1406 RB_HEAD(args_tree, args_entry);
1407 struct args {
1408 	struct args_tree	  tree;
1409 	int			  argc;
1410 	char			**argv;
1411 };
1412 
1413 /* Command find structures. */
1414 enum cmd_find_type {
1415 	CMD_FIND_PANE,
1416 	CMD_FIND_WINDOW,
1417 	CMD_FIND_SESSION,
1418 };
1419 struct cmd_find_state {
1420 	int			 flags;
1421 	struct cmd_find_state	*current;
1422 
1423 	struct session		*s;
1424 	struct winlink		*wl;
1425 	struct window		*w;
1426 	struct window_pane	*wp;
1427 	int			 idx;
1428 };
1429 
1430 /* Command find flags. */
1431 #define CMD_FIND_PREFER_UNATTACHED 0x1
1432 #define CMD_FIND_QUIET 0x2
1433 #define CMD_FIND_WINDOW_INDEX 0x4
1434 #define CMD_FIND_DEFAULT_MARKED 0x8
1435 #define CMD_FIND_EXACT_SESSION 0x10
1436 #define CMD_FIND_EXACT_WINDOW 0x20
1437 #define CMD_FIND_CANFAIL 0x40
1438 
1439 /* List of commands. */
1440 struct cmd_list {
1441 	int		 references;
1442 	u_int		 group;
1443 	struct cmds	*list;
1444 };
1445 
1446 /* Command return values. */
1447 enum cmd_retval {
1448 	CMD_RETURN_ERROR = -1,
1449 	CMD_RETURN_NORMAL = 0,
1450 	CMD_RETURN_WAIT,
1451 	CMD_RETURN_STOP
1452 };
1453 
1454 /* Command parse result. */
1455 enum cmd_parse_status {
1456 	CMD_PARSE_EMPTY,
1457 	CMD_PARSE_ERROR,
1458 	CMD_PARSE_SUCCESS
1459 };
1460 struct cmd_parse_result {
1461 	enum cmd_parse_status	 status;
1462 	struct cmd_list		*cmdlist;
1463 	char			*error;
1464 };
1465 struct cmd_parse_input {
1466 	int			 flags;
1467 #define CMD_PARSE_QUIET 0x1
1468 #define CMD_PARSE_PARSEONLY 0x2
1469 #define CMD_PARSE_NOALIAS 0x4
1470 #define CMD_PARSE_VERBOSE 0x8
1471 #define CMD_PARSE_ONEGROUP 0x10
1472 
1473 	const char		*file;
1474 	u_int			 line;
1475 
1476 	struct cmdq_item	*item;
1477 	struct client		*c;
1478 	struct cmd_find_state	 fs;
1479 };
1480 
1481 /* Command queue flags. */
1482 #define CMDQ_STATE_REPEAT 0x1
1483 #define CMDQ_STATE_CONTROL 0x2
1484 #define CMDQ_STATE_NOHOOKS 0x4
1485 
1486 /* Command queue callback. */
1487 typedef enum cmd_retval (*cmdq_cb) (struct cmdq_item *, void *);
1488 
1489 /* Command definition flag. */
1490 struct cmd_entry_flag {
1491 	char			 flag;
1492 	enum cmd_find_type	 type;
1493 	int			 flags;
1494 };
1495 
1496 /* Command definition. */
1497 struct cmd_entry {
1498 	const char		*name;
1499 	const char		*alias;
1500 
1501 	struct {
1502 		const char	*template;
1503 		int		 lower;
1504 		int		 upper;
1505 	} args;
1506 	const char		*usage;
1507 
1508 	struct cmd_entry_flag	 source;
1509 	struct cmd_entry_flag	 target;
1510 
1511 #define CMD_STARTSERVER 0x1
1512 #define CMD_READONLY 0x2
1513 #define CMD_AFTERHOOK 0x4
1514 #define CMD_CLIENT_CFLAG 0x8
1515 #define CMD_CLIENT_TFLAG 0x10
1516 #define CMD_CLIENT_CANFAIL 0x20
1517 	int		 flags;
1518 
1519 	enum cmd_retval	 (*exec)(struct cmd *, struct cmdq_item *);
1520 };
1521 
1522 /* Status line. */
1523 #define STATUS_LINES_LIMIT 5
1524 struct status_line_entry {
1525 	char			*expanded;
1526 	struct style_ranges	 ranges;
1527 };
1528 struct status_line {
1529 	struct event		 timer;
1530 
1531 	struct screen		 screen;
1532 	struct screen		*active;
1533 	int			 references;
1534 
1535 	struct grid_cell	 style;
1536 	struct status_line_entry entries[STATUS_LINES_LIMIT];
1537 };
1538 
1539 /* File in client. */
1540 typedef void (*client_file_cb) (struct client *, const char *, int, int,
1541     struct evbuffer *, void *);
1542 struct client_file {
1543 	struct client			*c;
1544 	struct tmuxpeer			*peer;
1545 	struct client_files		*tree;
1546 	int				 references;
1547 	int				 stream;
1548 
1549 	char				*path;
1550 	struct evbuffer			*buffer;
1551 	struct bufferevent		*event;
1552 
1553 	int				 fd;
1554 	int				 error;
1555 	int				 closed;
1556 
1557 	client_file_cb			 cb;
1558 	void				*data;
1559 
1560 	RB_ENTRY(client_file)		 entry;
1561 };
1562 RB_HEAD(client_files, client_file);
1563 
1564 /* Client window. */
1565 struct client_window {
1566 	u_int			 window;
1567 	struct window_pane	*pane;
1568 	RB_ENTRY(client_window)	 entry;
1569 };
1570 RB_HEAD(client_windows, client_window);
1571 
1572 /* Client connection. */
1573 typedef int (*prompt_input_cb)(struct client *, void *, const char *, int);
1574 typedef void (*prompt_free_cb)(void *);
1575 typedef int (*overlay_check_cb)(struct client *, u_int, u_int);
1576 typedef struct screen *(*overlay_mode_cb)(struct client *, u_int *, u_int *);
1577 typedef void (*overlay_draw_cb)(struct client *, struct screen_redraw_ctx *);
1578 typedef int (*overlay_key_cb)(struct client *, struct key_event *);
1579 typedef void (*overlay_free_cb)(struct client *);
1580 struct client {
1581 	const char	*name;
1582 	struct tmuxpeer	*peer;
1583 	struct cmdq_list *queue;
1584 
1585 	struct client_windows windows;
1586 
1587 	struct control_state *control_state;
1588 	u_int		 pause_age;
1589 
1590 	pid_t		 pid;
1591 	int		 fd;
1592 	int		 out_fd;
1593 	struct event	 event;
1594 	int		 retval;
1595 
1596 	struct timeval	 creation_time;
1597 	struct timeval	 activity_time;
1598 
1599 	struct environ	*environ;
1600 	struct format_job_tree	*jobs;
1601 
1602 	char		*title;
1603 	const char	*cwd;
1604 
1605 	char		*term_name;
1606 	int		 term_features;
1607 	char		*term_type;
1608 	char	       **term_caps;
1609 	u_int		 term_ncaps;
1610 
1611 	char		*ttyname;
1612 	struct tty	 tty;
1613 
1614 	size_t		 written;
1615 	size_t		 discarded;
1616 	size_t		 redraw;
1617 
1618 	struct event	 repeat_timer;
1619 
1620 	struct event	 click_timer;
1621 	u_int		 click_button;
1622 	struct mouse_event click_event;
1623 
1624 	struct status_line status;
1625 
1626 #define CLIENT_TERMINAL 0x1
1627 #define CLIENT_LOGIN 0x2
1628 #define CLIENT_EXIT 0x4
1629 #define CLIENT_REDRAWWINDOW 0x8
1630 #define CLIENT_REDRAWSTATUS 0x10
1631 #define CLIENT_REPEAT 0x20
1632 #define CLIENT_SUSPENDED 0x40
1633 #define CLIENT_ATTACHED 0x80
1634 #define CLIENT_EXITED 0x100
1635 #define CLIENT_DEAD 0x200
1636 #define CLIENT_REDRAWBORDERS 0x400
1637 #define CLIENT_READONLY 0x800
1638 #define CLIENT_NOSTARTSERVER 0x1000
1639 #define CLIENT_CONTROL 0x2000
1640 #define CLIENT_CONTROLCONTROL 0x4000
1641 #define CLIENT_FOCUSED 0x8000
1642 #define CLIENT_UTF8 0x10000
1643 #define CLIENT_IGNORESIZE 0x20000
1644 #define CLIENT_IDENTIFIED 0x40000
1645 #define CLIENT_STATUSFORCE 0x80000
1646 #define CLIENT_DOUBLECLICK 0x100000
1647 #define CLIENT_TRIPLECLICK 0x200000
1648 #define CLIENT_SIZECHANGED 0x400000
1649 #define CLIENT_STATUSOFF 0x800000
1650 #define CLIENT_REDRAWSTATUSALWAYS 0x1000000
1651 #define CLIENT_REDRAWOVERLAY 0x2000000
1652 #define CLIENT_CONTROL_NOOUTPUT 0x4000000
1653 #define CLIENT_DEFAULTSOCKET 0x8000000
1654 #define CLIENT_STARTSERVER 0x10000000
1655 #define CLIENT_REDRAWPANES 0x20000000
1656 #define CLIENT_NOFORK 0x40000000
1657 #define CLIENT_ACTIVEPANE 0x80000000ULL
1658 #define CLIENT_CONTROL_PAUSEAFTER 0x100000000ULL
1659 #define CLIENT_CONTROL_WAITEXIT 0x200000000ULL
1660 #define CLIENT_ALLREDRAWFLAGS		\
1661 	(CLIENT_REDRAWWINDOW|		\
1662 	 CLIENT_REDRAWSTATUS|		\
1663 	 CLIENT_REDRAWSTATUSALWAYS|	\
1664 	 CLIENT_REDRAWBORDERS|		\
1665 	 CLIENT_REDRAWOVERLAY|		\
1666 	 CLIENT_REDRAWPANES)
1667 #define CLIENT_UNATTACHEDFLAGS	\
1668 	(CLIENT_DEAD|		\
1669 	 CLIENT_SUSPENDED|	\
1670 	 CLIENT_EXIT)
1671 #define CLIENT_NOSIZEFLAGS	\
1672 	(CLIENT_DEAD|		\
1673 	 CLIENT_SUSPENDED|	\
1674 	 CLIENT_EXIT)
1675 	uint64_t	 flags;
1676 
1677 	enum {
1678 		CLIENT_EXIT_RETURN,
1679 		CLIENT_EXIT_SHUTDOWN,
1680 		CLIENT_EXIT_DETACH
1681 	}		 exit_type;
1682 	enum msgtype	 exit_msgtype;
1683 	char		*exit_session;
1684 	char		*exit_message;
1685 
1686 	struct key_table *keytable;
1687 
1688 	uint64_t	 redraw_panes;
1689 
1690 	int		 message_ignore_keys;
1691 	int		 message_ignore_styles;
1692 	char		*message_string;
1693 	struct event	 message_timer;
1694 
1695 	char		*prompt_string;
1696 	struct utf8_data *prompt_buffer;
1697 	char		*prompt_last;
1698 	size_t		 prompt_index;
1699 	prompt_input_cb	 prompt_inputcb;
1700 	prompt_free_cb	 prompt_freecb;
1701 	void		*prompt_data;
1702 	u_int		 prompt_hindex;
1703 	enum { PROMPT_ENTRY, PROMPT_COMMAND } prompt_mode;
1704 	struct utf8_data *prompt_saved;
1705 
1706 #define PROMPT_SINGLE 0x1
1707 #define PROMPT_NUMERIC 0x2
1708 #define PROMPT_INCREMENTAL 0x4
1709 #define PROMPT_NOFORMAT 0x8
1710 #define PROMPT_KEY 0x10
1711 #define PROMPT_WINDOW 0x20
1712 #define PROMPT_TARGET 0x40
1713 	int		 prompt_flags;
1714 
1715 	struct session	*session;
1716 	struct session	*last_session;
1717 
1718 	int		 references;
1719 
1720 	void		*pan_window;
1721 	u_int		 pan_ox;
1722 	u_int		 pan_oy;
1723 
1724 	overlay_check_cb overlay_check;
1725 	overlay_mode_cb	 overlay_mode;
1726 	overlay_draw_cb	 overlay_draw;
1727 	overlay_key_cb	 overlay_key;
1728 	overlay_free_cb	 overlay_free;
1729 	void		*overlay_data;
1730 	struct event	 overlay_timer;
1731 
1732 	struct client_files files;
1733 
1734 	TAILQ_ENTRY(client) entry;
1735 };
1736 TAILQ_HEAD(clients, client);
1737 
1738 /* Control mode subscription type. */
1739 enum control_sub_type {
1740 	CONTROL_SUB_SESSION,
1741 	CONTROL_SUB_PANE,
1742 	CONTROL_SUB_ALL_PANES,
1743 	CONTROL_SUB_WINDOW,
1744 	CONTROL_SUB_ALL_WINDOWS
1745 };
1746 
1747 /* Key binding and key table. */
1748 struct key_binding {
1749 	key_code		 key;
1750 	struct cmd_list		*cmdlist;
1751 	const char		*note;
1752 
1753 	int			 flags;
1754 #define KEY_BINDING_REPEAT 0x1
1755 
1756 	RB_ENTRY(key_binding)	 entry;
1757 };
1758 RB_HEAD(key_bindings, key_binding);
1759 
1760 struct key_table {
1761 	const char		*name;
1762 	struct key_bindings	 key_bindings;
1763 	struct key_bindings	 default_key_bindings;
1764 
1765 	u_int			 references;
1766 
1767 	RB_ENTRY(key_table)	 entry;
1768 };
1769 RB_HEAD(key_tables, key_table);
1770 
1771 /* Option data. */
1772 RB_HEAD(options_array, options_array_item);
1773 union options_value {
1774 	char				 *string;
1775 	long long			  number;
1776 	struct style			  style;
1777 	struct options_array		  array;
1778 	struct cmd_list			 *cmdlist;
1779 };
1780 
1781 /* Option table entries. */
1782 enum options_table_type {
1783 	OPTIONS_TABLE_STRING,
1784 	OPTIONS_TABLE_NUMBER,
1785 	OPTIONS_TABLE_KEY,
1786 	OPTIONS_TABLE_COLOUR,
1787 	OPTIONS_TABLE_FLAG,
1788 	OPTIONS_TABLE_CHOICE,
1789 	OPTIONS_TABLE_COMMAND
1790 };
1791 
1792 #define OPTIONS_TABLE_NONE 0
1793 #define OPTIONS_TABLE_SERVER 0x1
1794 #define OPTIONS_TABLE_SESSION 0x2
1795 #define OPTIONS_TABLE_WINDOW 0x4
1796 #define OPTIONS_TABLE_PANE 0x8
1797 
1798 #define OPTIONS_TABLE_IS_ARRAY 0x1
1799 #define OPTIONS_TABLE_IS_HOOK 0x2
1800 #define OPTIONS_TABLE_IS_STYLE 0x4
1801 
1802 struct options_table_entry {
1803 	const char		 *name;
1804 	const char		 *alternative_name;
1805 	enum options_table_type	  type;
1806 	int			  scope;
1807 	int			  flags;
1808 
1809 	u_int			  minimum;
1810 	u_int			  maximum;
1811 	const char		**choices;
1812 
1813 	const char		 *default_str;
1814 	long long		  default_num;
1815 	const char		**default_arr;
1816 
1817 	const char		 *separator;
1818 	const char		 *pattern;
1819 
1820 	const char		 *text;
1821 	const char		 *unit;
1822 };
1823 
1824 struct options_name_map {
1825 	const char		*from;
1826 	const char		*to;
1827 };
1828 
1829 /* Common command usages. */
1830 #define CMD_TARGET_PANE_USAGE "[-t target-pane]"
1831 #define CMD_TARGET_WINDOW_USAGE "[-t target-window]"
1832 #define CMD_TARGET_SESSION_USAGE "[-t target-session]"
1833 #define CMD_TARGET_CLIENT_USAGE "[-t target-client]"
1834 #define CMD_SRCDST_PANE_USAGE "[-s src-pane] [-t dst-pane]"
1835 #define CMD_SRCDST_WINDOW_USAGE "[-s src-window] [-t dst-window]"
1836 #define CMD_SRCDST_SESSION_USAGE "[-s src-session] [-t dst-session]"
1837 #define CMD_SRCDST_CLIENT_USAGE "[-s src-client] [-t dst-client]"
1838 #define CMD_BUFFER_USAGE "[-b buffer-name]"
1839 
1840 /* Spawn common context. */
1841 struct spawn_context {
1842 	struct cmdq_item	 *item;
1843 
1844 	struct session		 *s;
1845 	struct winlink		 *wl;
1846 	struct client		 *tc;
1847 
1848 	struct window_pane	 *wp0;
1849 	struct layout_cell	 *lc;
1850 
1851 	const char		 *name;
1852 	char			**argv;
1853 	int			  argc;
1854 	struct environ		 *environ;
1855 
1856 	int			  idx;
1857 	const char		 *cwd;
1858 
1859 	int			  flags;
1860 #define SPAWN_KILL 0x1
1861 #define SPAWN_DETACHED 0x2
1862 #define SPAWN_RESPAWN 0x4
1863 #define SPAWN_BEFORE 0x8
1864 #define SPAWN_NONOTIFY 0x10
1865 #define SPAWN_FULLSIZE 0x20
1866 #define SPAWN_EMPTY 0x40
1867 #define SPAWN_ZOOM 0x80
1868 };
1869 
1870 /* Mode tree sort order. */
1871 struct mode_tree_sort_criteria {
1872 	u_int	field;
1873 	int	reversed;
1874 };
1875 
1876 /* tmux.c */
1877 extern struct options	*global_options;
1878 extern struct options	*global_s_options;
1879 extern struct options	*global_w_options;
1880 extern struct environ	*global_environ;
1881 extern struct timeval	 start_time;
1882 extern const char	*socket_path;
1883 extern const char	*shell_command;
1884 extern int		 ptm_fd;
1885 extern const char	*shell_command;
1886 int		 checkshell(const char *);
1887 void		 setblocking(int, int);
1888 uint64_t	 get_timer(void);
1889 const char	*sig2name(int);
1890 const char	*find_cwd(void);
1891 const char	*find_home(void);
1892 const char	*getversion(void);
1893 
1894 /* proc.c */
1895 struct imsg;
1896 int	proc_send(struct tmuxpeer *, enum msgtype, int, const void *, size_t);
1897 struct tmuxproc *proc_start(const char *);
1898 void	proc_loop(struct tmuxproc *, int (*)(void));
1899 void	proc_exit(struct tmuxproc *);
1900 void	proc_set_signals(struct tmuxproc *, void(*)(int));
1901 void	proc_clear_signals(struct tmuxproc *, int);
1902 struct tmuxpeer *proc_add_peer(struct tmuxproc *, int,
1903 	    void (*)(struct imsg *, void *), void *);
1904 void	proc_remove_peer(struct tmuxpeer *);
1905 void	proc_kill_peer(struct tmuxpeer *);
1906 void	proc_toggle_log(struct tmuxproc *);
1907 pid_t	proc_fork_and_daemon(int *);
1908 
1909 /* cfg.c */
1910 extern int cfg_finished;
1911 extern struct client *cfg_client;
1912 extern char **cfg_files;
1913 extern u_int cfg_nfiles;
1914 extern int cfg_quiet;
1915 void	start_cfg(void);
1916 int	load_cfg(const char *, struct client *, struct cmdq_item *, int,
1917 	    struct cmdq_item **);
1918 int	load_cfg_from_buffer(const void *, size_t, const char *,
1919 	    struct client *, struct cmdq_item *, int, struct cmdq_item **);
1920 void printflike(1, 2) cfg_add_cause(const char *, ...);
1921 void	cfg_print_causes(struct cmdq_item *);
1922 void	cfg_show_causes(struct session *);
1923 
1924 /* paste.c */
1925 struct paste_buffer;
1926 const char	*paste_buffer_name(struct paste_buffer *);
1927 u_int		 paste_buffer_order(struct paste_buffer *);
1928 time_t		 paste_buffer_created(struct paste_buffer *);
1929 const char	*paste_buffer_data(struct paste_buffer *, size_t *);
1930 struct paste_buffer *paste_walk(struct paste_buffer *);
1931 struct paste_buffer *paste_get_top(const char **);
1932 struct paste_buffer *paste_get_name(const char *);
1933 void		 paste_free(struct paste_buffer *);
1934 void		 paste_add(const char *, char *, size_t);
1935 int		 paste_rename(const char *, const char *, char **);
1936 int		 paste_set(char *, size_t, const char *, char **);
1937 void		 paste_replace(struct paste_buffer *, char *, size_t);
1938 char		*paste_make_sample(struct paste_buffer *);
1939 
1940 /* format.c */
1941 #define FORMAT_STATUS 0x1
1942 #define FORMAT_FORCE 0x2
1943 #define FORMAT_NOJOBS 0x4
1944 #define FORMAT_VERBOSE 0x8
1945 #define FORMAT_NONE 0
1946 #define FORMAT_PANE 0x80000000U
1947 #define FORMAT_WINDOW 0x40000000U
1948 struct format_tree;
1949 struct format_modifier;
1950 typedef void *(*format_cb)(struct format_tree *);
1951 void		 format_tidy_jobs(void);
1952 const char	*format_skip(const char *, const char *);
1953 int		 format_true(const char *);
1954 struct format_tree *format_create(struct client *, struct cmdq_item *, int,
1955 		     int);
1956 void		 format_free(struct format_tree *);
1957 void		 format_merge(struct format_tree *, struct format_tree *);
1958 struct window_pane *format_get_pane(struct format_tree *);
1959 void printflike(3, 4) format_add(struct format_tree *, const char *,
1960 		     const char *, ...);
1961 void		 format_add_tv(struct format_tree *, const char *,
1962 		     struct timeval *);
1963 void		 format_add_cb(struct format_tree *, const char *, format_cb);
1964 void		 format_each(struct format_tree *, void (*)(const char *,
1965 		     const char *, void *), void *);
1966 char		*format_expand_time(struct format_tree *, const char *);
1967 char		*format_expand(struct format_tree *, const char *);
1968 char		*format_single(struct cmdq_item *, const char *,
1969 		     struct client *, struct session *, struct winlink *,
1970 		     struct window_pane *);
1971 char		*format_single_from_state(struct cmdq_item *, const char *,
1972 		    struct client *, struct cmd_find_state *);
1973 char		*format_single_from_target(struct cmdq_item *, const char *);
1974 struct format_tree *format_create_defaults(struct cmdq_item *, struct client *,
1975 		     struct session *, struct winlink *, struct window_pane *);
1976 struct format_tree *format_create_from_state(struct cmdq_item *,
1977 		     struct client *, struct cmd_find_state *);
1978 struct format_tree *format_create_from_target(struct cmdq_item *);
1979 void		 format_defaults(struct format_tree *, struct client *,
1980 		     struct session *, struct winlink *, struct window_pane *);
1981 void		 format_defaults_window(struct format_tree *, struct window *);
1982 void		 format_defaults_pane(struct format_tree *,
1983 		     struct window_pane *);
1984 void		 format_defaults_paste_buffer(struct format_tree *,
1985 		     struct paste_buffer *);
1986 void		 format_lost_client(struct client *);
1987 char		*format_grid_word(struct grid *, u_int, u_int);
1988 char		*format_grid_line(struct grid *, u_int);
1989 
1990 /* format-draw.c */
1991 void		 format_draw(struct screen_write_ctx *,
1992 		     const struct grid_cell *, u_int, const char *,
1993 		     struct style_ranges *);
1994 u_int		 format_width(const char *);
1995 char		*format_trim_left(const char *, u_int);
1996 char		*format_trim_right(const char *, u_int);
1997 
1998 /* notify.c */
1999 void	notify_hook(struct cmdq_item *, const char *);
2000 void	notify_client(const char *, struct client *);
2001 void	notify_session(const char *, struct session *);
2002 void	notify_winlink(const char *, struct winlink *);
2003 void	notify_session_window(const char *, struct session *, struct window *);
2004 void	notify_window(const char *, struct window *);
2005 void	notify_pane(const char *, struct window_pane *);
2006 
2007 /* options.c */
2008 struct options	*options_create(struct options *);
2009 void		 options_free(struct options *);
2010 struct options	*options_get_parent(struct options *);
2011 void		 options_set_parent(struct options *, struct options *);
2012 struct options_entry *options_first(struct options *);
2013 struct options_entry *options_next(struct options_entry *);
2014 struct options_entry *options_empty(struct options *,
2015 		     const struct options_table_entry *);
2016 struct options_entry *options_default(struct options *,
2017 		     const struct options_table_entry *);
2018 char		*options_default_to_string(const struct options_table_entry *);
2019 const char	*options_name(struct options_entry *);
2020 struct options	*options_owner(struct options_entry *);
2021 const struct options_table_entry *options_table_entry(struct options_entry *);
2022 struct options_entry *options_get_only(struct options *, const char *);
2023 struct options_entry *options_get(struct options *, const char *);
2024 void		 options_array_clear(struct options_entry *);
2025 union options_value *options_array_get(struct options_entry *, u_int);
2026 int		 options_array_set(struct options_entry *, u_int, const char *,
2027 		     int, char **);
2028 int		 options_array_assign(struct options_entry *, const char *,
2029 		     char **);
2030 struct options_array_item *options_array_first(struct options_entry *);
2031 struct options_array_item *options_array_next(struct options_array_item *);
2032 u_int		 options_array_item_index(struct options_array_item *);
2033 union options_value *options_array_item_value(struct options_array_item *);
2034 int		 options_is_array(struct options_entry *);
2035 int		 options_is_string(struct options_entry *);
2036 char		*options_to_string(struct options_entry *, int, int);
2037 char		*options_parse(const char *, int *);
2038 struct options_entry *options_parse_get(struct options *, const char *, int *,
2039 		     int);
2040 char		*options_match(const char *, int *, int *);
2041 struct options_entry *options_match_get(struct options *, const char *, int *,
2042 		     int, int *);
2043 const char	*options_get_string(struct options *, const char *);
2044 long long	 options_get_number(struct options *, const char *);
2045 struct options_entry * printflike(4, 5) options_set_string(struct options *,
2046 		     const char *, int, const char *, ...);
2047 struct options_entry *options_set_number(struct options *, const char *,
2048 		     long long);
2049 int		 options_scope_from_name(struct args *, int,
2050 		     const char *, struct cmd_find_state *, struct options **,
2051 		     char **);
2052 int		 options_scope_from_flags(struct args *, int,
2053 		     struct cmd_find_state *, struct options **, char **);
2054 struct style	*options_string_to_style(struct options *, const char *,
2055 		     struct format_tree *);
2056 int		 options_from_string(struct options *,
2057 		     const struct options_table_entry *, const char *,
2058 		     const char *, int, char **);
2059 void		 options_push_changes(const char *);
2060 int		 options_remove_or_default(struct options_entry *, int,
2061 		     char **);
2062 
2063 /* options-table.c */
2064 extern const struct options_table_entry	options_table[];
2065 extern const struct options_name_map	options_other_names[];
2066 
2067 /* job.c */
2068 typedef void (*job_update_cb) (struct job *);
2069 typedef void (*job_complete_cb) (struct job *);
2070 typedef void (*job_free_cb) (void *);
2071 #define JOB_NOWAIT 0x1
2072 #define JOB_KEEPWRITE 0x2
2073 #define JOB_PTY 0x4
2074 struct job	*job_run(const char *, int, char **, struct session *,
2075 		     const char *, job_update_cb, job_complete_cb, job_free_cb,
2076 		     void *, int, int, int);
2077 void		 job_free(struct job *);
2078 void		 job_resize(struct job *, u_int, u_int);
2079 void		 job_check_died(pid_t, int);
2080 int		 job_get_status(struct job *);
2081 void		*job_get_data(struct job *);
2082 struct bufferevent *job_get_event(struct job *);
2083 void		 job_kill_all(void);
2084 int		 job_still_running(void);
2085 void		 job_print_summary(struct cmdq_item *, int);
2086 
2087 /* environ.c */
2088 struct environ *environ_create(void);
2089 void	environ_free(struct environ *);
2090 struct environ_entry *environ_first(struct environ *);
2091 struct environ_entry *environ_next(struct environ_entry *);
2092 void	environ_copy(struct environ *, struct environ *);
2093 struct environ_entry *environ_find(struct environ *, const char *);
2094 void printflike(4, 5) environ_set(struct environ *, const char *, int,
2095 	    const char *, ...);
2096 void	environ_clear(struct environ *, const char *);
2097 void	environ_put(struct environ *, const char *, int);
2098 void	environ_unset(struct environ *, const char *);
2099 void	environ_update(struct options *, struct environ *, struct environ *);
2100 void	environ_push(struct environ *);
2101 void printflike(2, 3) environ_log(struct environ *, const char *, ...);
2102 struct environ *environ_for_session(struct session *, int);
2103 
2104 /* tty.c */
2105 void	tty_create_log(void);
2106 int	tty_window_bigger(struct tty *);
2107 int	tty_window_offset(struct tty *, u_int *, u_int *, u_int *, u_int *);
2108 void	tty_update_window_offset(struct window *);
2109 void	tty_update_client_offset(struct client *);
2110 void	tty_raw(struct tty *, const char *);
2111 void	tty_attributes(struct tty *, const struct grid_cell *,
2112 	    const struct grid_cell *, int *);
2113 void	tty_reset(struct tty *);
2114 void	tty_region_off(struct tty *);
2115 void	tty_margin_off(struct tty *);
2116 void	tty_cursor(struct tty *, u_int, u_int);
2117 void	tty_putcode(struct tty *, enum tty_code_code);
2118 void	tty_putcode1(struct tty *, enum tty_code_code, int);
2119 void	tty_putcode2(struct tty *, enum tty_code_code, int, int);
2120 void	tty_putcode3(struct tty *, enum tty_code_code, int, int, int);
2121 void	tty_putcode_ptr1(struct tty *, enum tty_code_code, const void *);
2122 void	tty_putcode_ptr2(struct tty *, enum tty_code_code, const void *,
2123 	    const void *);
2124 void	tty_puts(struct tty *, const char *);
2125 void	tty_putc(struct tty *, u_char);
2126 void	tty_putn(struct tty *, const void *, size_t, u_int);
2127 void	tty_cell(struct tty *, const struct grid_cell *,
2128 	    const struct grid_cell *, int *);
2129 int	tty_init(struct tty *, struct client *);
2130 void	tty_resize(struct tty *);
2131 void	tty_set_size(struct tty *, u_int, u_int, u_int, u_int);
2132 void	tty_start_tty(struct tty *);
2133 void	tty_send_requests(struct tty *);
2134 void	tty_stop_tty(struct tty *);
2135 void	tty_set_title(struct tty *, const char *);
2136 void	tty_update_mode(struct tty *, int, struct screen *);
2137 void	tty_draw_line(struct tty *, struct screen *, u_int, u_int, u_int,
2138 	    u_int, u_int, const struct grid_cell *, int *);
2139 void	tty_sync_start(struct tty *);
2140 void	tty_sync_end(struct tty *);
2141 int	tty_open(struct tty *, char **);
2142 void	tty_close(struct tty *);
2143 void	tty_free(struct tty *);
2144 void	tty_update_features(struct tty *);
2145 void	tty_set_selection(struct tty *, const char *, size_t);
2146 void	tty_write(void (*)(struct tty *, const struct tty_ctx *),
2147 	    struct tty_ctx *);
2148 void	tty_cmd_alignmenttest(struct tty *, const struct tty_ctx *);
2149 void	tty_cmd_cell(struct tty *, const struct tty_ctx *);
2150 void	tty_cmd_cells(struct tty *, const struct tty_ctx *);
2151 void	tty_cmd_clearendofline(struct tty *, const struct tty_ctx *);
2152 void	tty_cmd_clearendofscreen(struct tty *, const struct tty_ctx *);
2153 void	tty_cmd_clearline(struct tty *, const struct tty_ctx *);
2154 void	tty_cmd_clearscreen(struct tty *, const struct tty_ctx *);
2155 void	tty_cmd_clearstartofline(struct tty *, const struct tty_ctx *);
2156 void	tty_cmd_clearstartofscreen(struct tty *, const struct tty_ctx *);
2157 void	tty_cmd_deletecharacter(struct tty *, const struct tty_ctx *);
2158 void	tty_cmd_clearcharacter(struct tty *, const struct tty_ctx *);
2159 void	tty_cmd_deleteline(struct tty *, const struct tty_ctx *);
2160 void	tty_cmd_erasecharacter(struct tty *, const struct tty_ctx *);
2161 void	tty_cmd_insertcharacter(struct tty *, const struct tty_ctx *);
2162 void	tty_cmd_insertline(struct tty *, const struct tty_ctx *);
2163 void	tty_cmd_linefeed(struct tty *, const struct tty_ctx *);
2164 void	tty_cmd_scrollup(struct tty *, const struct tty_ctx *);
2165 void	tty_cmd_scrolldown(struct tty *, const struct tty_ctx *);
2166 void	tty_cmd_reverseindex(struct tty *, const struct tty_ctx *);
2167 void	tty_cmd_setselection(struct tty *, const struct tty_ctx *);
2168 void	tty_cmd_rawstring(struct tty *, const struct tty_ctx *);
2169 void	tty_cmd_syncstart(struct tty *, const struct tty_ctx *);
2170 void	tty_default_colours(struct grid_cell *, struct window_pane *);
2171 
2172 /* tty-term.c */
2173 extern struct tty_terms tty_terms;
2174 u_int		 tty_term_ncodes(void);
2175 void		 tty_term_apply(struct tty_term *, const char *, int);
2176 void		 tty_term_apply_overrides(struct tty_term *);
2177 struct tty_term *tty_term_create(struct tty *, char *, char **, u_int, int *,
2178 		     char **);
2179 void		 tty_term_free(struct tty_term *);
2180 int		 tty_term_read_list(const char *, int, char ***, u_int *,
2181 		     char **);
2182 void		 tty_term_free_list(char **, u_int);
2183 int		 tty_term_has(struct tty_term *, enum tty_code_code);
2184 const char	*tty_term_string(struct tty_term *, enum tty_code_code);
2185 const char	*tty_term_string1(struct tty_term *, enum tty_code_code, int);
2186 const char	*tty_term_string2(struct tty_term *, enum tty_code_code, int,
2187 		     int);
2188 const char	*tty_term_string3(struct tty_term *, enum tty_code_code, int,
2189 		     int, int);
2190 const char	*tty_term_ptr1(struct tty_term *, enum tty_code_code,
2191 		     const void *);
2192 const char	*tty_term_ptr2(struct tty_term *, enum tty_code_code,
2193 		     const void *, const void *);
2194 int		 tty_term_number(struct tty_term *, enum tty_code_code);
2195 int		 tty_term_flag(struct tty_term *, enum tty_code_code);
2196 const char	*tty_term_describe(struct tty_term *, enum tty_code_code);
2197 
2198 /* tty-features.c */
2199 void		 tty_add_features(int *, const char *, const char *);
2200 const char	*tty_get_features(int);
2201 int		 tty_apply_features(struct tty_term *, int);
2202 void		 tty_default_features(int *, const char *, u_int);
2203 
2204 /* tty-acs.c */
2205 int		 tty_acs_needed(struct tty *);
2206 const char	*tty_acs_get(struct tty *, u_char);
2207 int		 tty_acs_reverse_get(struct tty *, const char *, size_t);
2208 
2209 /* tty-keys.c */
2210 void		tty_keys_build(struct tty *);
2211 void		tty_keys_free(struct tty *);
2212 int		tty_keys_next(struct tty *);
2213 
2214 /* arguments.c */
2215 void		 args_set(struct args *, u_char, const char *);
2216 struct args	*args_parse(const char *, int, char **);
2217 void		 args_free(struct args *);
2218 char		*args_print(struct args *);
2219 char		*args_escape(const char *);
2220 int		 args_has(struct args *, u_char);
2221 const char	*args_get(struct args *, u_char);
2222 u_char		 args_first(struct args *, struct args_entry **);
2223 u_char		 args_next(struct args_entry **);
2224 const char	*args_first_value(struct args *, u_char, struct args_value **);
2225 const char	*args_next_value(struct args_value **);
2226 long long	 args_strtonum(struct args *, u_char, long long, long long,
2227 		     char **);
2228 long long	 args_percentage(struct args *, u_char, long long,
2229 		     long long, long long, char **);
2230 long long	 args_string_percentage(const char *, long long, long long,
2231 		     long long, char **);
2232 
2233 /* cmd-find.c */
2234 int		 cmd_find_target(struct cmd_find_state *, struct cmdq_item *,
2235 		     const char *, enum cmd_find_type, int);
2236 struct client	*cmd_find_best_client(struct session *);
2237 struct client	*cmd_find_client(struct cmdq_item *, const char *, int);
2238 void		 cmd_find_clear_state(struct cmd_find_state *, int);
2239 int		 cmd_find_empty_state(struct cmd_find_state *);
2240 int		 cmd_find_valid_state(struct cmd_find_state *);
2241 void		 cmd_find_copy_state(struct cmd_find_state *,
2242 		     struct cmd_find_state *);
2243 void		 cmd_find_from_session(struct cmd_find_state *,
2244 		     struct session *, int);
2245 void		 cmd_find_from_winlink(struct cmd_find_state *,
2246 		     struct winlink *, int);
2247 int		 cmd_find_from_session_window(struct cmd_find_state *,
2248 		     struct session *, struct window *, int);
2249 int		 cmd_find_from_window(struct cmd_find_state *, struct window *,
2250 		     int);
2251 void		 cmd_find_from_winlink_pane(struct cmd_find_state *,
2252 		     struct winlink *, struct window_pane *, int);
2253 int		 cmd_find_from_pane(struct cmd_find_state *,
2254 		     struct window_pane *, int);
2255 int		 cmd_find_from_client(struct cmd_find_state *, struct client *,
2256 		     int);
2257 int		 cmd_find_from_mouse(struct cmd_find_state *,
2258 		     struct mouse_event *, int);
2259 int		 cmd_find_from_nothing(struct cmd_find_state *, int);
2260 
2261 /* cmd.c */
2262 extern const struct cmd_entry *cmd_table[];
2263 void printflike(3, 4) cmd_log_argv(int, char **, const char *, ...);
2264 void		 cmd_prepend_argv(int *, char ***, char *);
2265 void		 cmd_append_argv(int *, char ***, char *);
2266 int		 cmd_pack_argv(int, char **, char *, size_t);
2267 int		 cmd_unpack_argv(char *, size_t, int, char ***);
2268 char	       **cmd_copy_argv(int, char **);
2269 void		 cmd_free_argv(int, char **);
2270 char		*cmd_stringify_argv(int, char **);
2271 char		*cmd_get_alias(const char *);
2272 const struct cmd_entry *cmd_get_entry(struct cmd *);
2273 struct args	*cmd_get_args(struct cmd *);
2274 u_int		 cmd_get_group(struct cmd *);
2275 void		 cmd_get_source(struct cmd *, const char **, u_int *);
2276 struct cmd	*cmd_parse(int, char **, const char *, u_int, char **);
2277 void		 cmd_free(struct cmd *);
2278 char		*cmd_print(struct cmd *);
2279 struct cmd_list	*cmd_list_new(void);
2280 void		 cmd_list_append(struct cmd_list *, struct cmd *);
2281 void		 cmd_list_move(struct cmd_list *, struct cmd_list *);
2282 void		 cmd_list_free(struct cmd_list *);
2283 char		*cmd_list_print(struct cmd_list *, int);
2284 struct cmd	*cmd_list_first(struct cmd_list *);
2285 struct cmd	*cmd_list_next(struct cmd *);
2286 int		 cmd_list_all_have(struct cmd_list *, int);
2287 int		 cmd_list_any_have(struct cmd_list *, int);
2288 int		 cmd_mouse_at(struct window_pane *, struct mouse_event *,
2289 		     u_int *, u_int *, int);
2290 struct winlink	*cmd_mouse_window(struct mouse_event *, struct session **);
2291 struct window_pane *cmd_mouse_pane(struct mouse_event *, struct session **,
2292 		     struct winlink **);
2293 char		*cmd_template_replace(const char *, const char *, int);
2294 
2295 /* cmd-attach-session.c */
2296 enum cmd_retval	 cmd_attach_session(struct cmdq_item *, const char *, int, int,
2297 		     int, const char *, int, const char *);
2298 
2299 /* cmd-parse.c */
2300 void		 cmd_parse_empty(struct cmd_parse_input *);
2301 struct cmd_parse_result *cmd_parse_from_file(FILE *, struct cmd_parse_input *);
2302 struct cmd_parse_result *cmd_parse_from_string(const char *,
2303 		     struct cmd_parse_input *);
2304 enum cmd_parse_status cmd_parse_and_insert(const char *,
2305 		     struct cmd_parse_input *, struct cmdq_item *,
2306 		     struct cmdq_state *, char **);
2307 enum cmd_parse_status cmd_parse_and_append(const char *,
2308 		     struct cmd_parse_input *, struct client *,
2309 		     struct cmdq_state *, char **);
2310 struct cmd_parse_result *cmd_parse_from_buffer(const void *, size_t,
2311 		     struct cmd_parse_input *);
2312 struct cmd_parse_result *cmd_parse_from_arguments(int, char **,
2313 		     struct cmd_parse_input *);
2314 
2315 /* cmd-queue.c */
2316 struct cmdq_state *cmdq_new_state(struct cmd_find_state *, struct key_event *,
2317 		     int);
2318 struct cmdq_state *cmdq_link_state(struct cmdq_state *);
2319 struct cmdq_state *cmdq_copy_state(struct cmdq_state *);
2320 void		  cmdq_free_state(struct cmdq_state *);
2321 void printflike(3, 4) cmdq_add_format(struct cmdq_state *, const char *,
2322 		     const char *, ...);
2323 void		  cmdq_merge_formats(struct cmdq_item *, struct format_tree *);
2324 struct cmdq_list *cmdq_new(void);
2325 void cmdq_free(struct cmdq_list *);
2326 const char	 *cmdq_get_name(struct cmdq_item *);
2327 struct client	 *cmdq_get_client(struct cmdq_item *);
2328 struct client	 *cmdq_get_target_client(struct cmdq_item *);
2329 struct cmdq_state *cmdq_get_state(struct cmdq_item *);
2330 struct cmd_find_state *cmdq_get_target(struct cmdq_item *);
2331 struct cmd_find_state *cmdq_get_source(struct cmdq_item *);
2332 struct key_event *cmdq_get_event(struct cmdq_item *);
2333 struct cmd_find_state *cmdq_get_current(struct cmdq_item *);
2334 int		  cmdq_get_flags(struct cmdq_item *);
2335 struct cmdq_item *cmdq_get_command(struct cmd_list *, struct cmdq_state *);
2336 #define cmdq_get_callback(cb, data) cmdq_get_callback1(#cb, cb, data)
2337 struct cmdq_item *cmdq_get_callback1(const char *, cmdq_cb, void *);
2338 struct cmdq_item *cmdq_get_error(const char *);
2339 struct cmdq_item *cmdq_insert_after(struct cmdq_item *, struct cmdq_item *);
2340 struct cmdq_item *cmdq_append(struct client *, struct cmdq_item *);
2341 void		 cmdq_insert_hook(struct session *, struct cmdq_item *,
2342 		     struct cmd_find_state *, const char *, ...);
2343 void		 cmdq_continue(struct cmdq_item *);
2344 u_int		 cmdq_next(struct client *);
2345 struct cmdq_item *cmdq_running(struct client *);
2346 void		 cmdq_guard(struct cmdq_item *, const char *, int);
2347 void printflike(2, 3) cmdq_print(struct cmdq_item *, const char *, ...);
2348 void printflike(2, 3) cmdq_error(struct cmdq_item *, const char *, ...);
2349 
2350 /* cmd-wait-for.c */
2351 void	cmd_wait_for_flush(void);
2352 
2353 /* client.c */
2354 int	client_main(struct event_base *, int, char **, uint64_t, int);
2355 
2356 /* key-bindings.c */
2357 struct key_table *key_bindings_get_table(const char *, int);
2358 struct key_table *key_bindings_first_table(void);
2359 struct key_table *key_bindings_next_table(struct key_table *);
2360 void	 key_bindings_unref_table(struct key_table *);
2361 struct key_binding *key_bindings_get(struct key_table *, key_code);
2362 struct key_binding *key_bindings_get_default(struct key_table *, key_code);
2363 struct key_binding *key_bindings_first(struct key_table *);
2364 struct key_binding *key_bindings_next(struct key_table *, struct key_binding *);
2365 void	 key_bindings_add(const char *, key_code, const char *, int,
2366 	     struct cmd_list *);
2367 void	 key_bindings_remove(const char *, key_code);
2368 void	 key_bindings_reset(const char *, key_code);
2369 void	 key_bindings_remove_table(const char *);
2370 void	 key_bindings_reset_table(const char *);
2371 void	 key_bindings_init(void);
2372 struct cmdq_item *key_bindings_dispatch(struct key_binding *,
2373 	     struct cmdq_item *, struct client *, struct key_event *,
2374 	     struct cmd_find_state *);
2375 
2376 /* key-string.c */
2377 key_code	 key_string_lookup_string(const char *);
2378 const char	*key_string_lookup_key(key_code, int);
2379 
2380 /* alerts.c */
2381 void	alerts_reset_all(void);
2382 void	alerts_queue(struct window *, int);
2383 void	alerts_check_session(struct session *);
2384 
2385 /* file.c */
2386 int	 file_cmp(struct client_file *, struct client_file *);
2387 RB_PROTOTYPE(client_files, client_file, entry, file_cmp);
2388 struct client_file *file_create_with_peer(struct tmuxpeer *,
2389 	    struct client_files *, int, client_file_cb, void *);
2390 struct client_file *file_create_with_client(struct client *, int,
2391 	    client_file_cb, void *);
2392 void	 file_free(struct client_file *);
2393 void	 file_fire_done(struct client_file *);
2394 void	 file_fire_read(struct client_file *);
2395 int	 file_can_print(struct client *);
2396 void printflike(2, 3) file_print(struct client *, const char *, ...);
2397 void	 file_vprint(struct client *, const char *, va_list);
2398 void	 file_print_buffer(struct client *, void *, size_t);
2399 void printflike(2, 3) file_error(struct client *, const char *, ...);
2400 void	 file_write(struct client *, const char *, int, const void *, size_t,
2401 	     client_file_cb, void *);
2402 void	 file_read(struct client *, const char *, client_file_cb, void *);
2403 void	 file_push(struct client_file *);
2404 int	 file_write_left(struct client_files *);
2405 void	 file_write_open(struct client_files *, struct tmuxpeer *,
2406 	     struct imsg *, int, int, client_file_cb, void *);
2407 void	 file_write_data(struct client_files *, struct imsg *);
2408 void	 file_write_close(struct client_files *, struct imsg *);
2409 void	 file_read_open(struct client_files *, struct tmuxpeer *, struct imsg *,
2410 	     int, int, client_file_cb, void *);
2411 void	 file_write_ready(struct client_files *, struct imsg *);
2412 void	 file_read_data(struct client_files *, struct imsg *);
2413 void	 file_read_done(struct client_files *, struct imsg *);
2414 
2415 /* server.c */
2416 extern struct tmuxproc *server_proc;
2417 extern struct clients clients;
2418 extern struct cmd_find_state marked_pane;
2419 extern struct message_list message_log;
2420 void	 server_set_marked(struct session *, struct winlink *,
2421 	     struct window_pane *);
2422 void	 server_clear_marked(void);
2423 int	 server_is_marked(struct session *, struct winlink *,
2424 	     struct window_pane *);
2425 int	 server_check_marked(void);
2426 int	 server_start(struct tmuxproc *, int, struct event_base *, int, char *);
2427 void	 server_update_socket(void);
2428 void	 server_add_accept(int);
2429 void printflike(1, 2) server_add_message(const char *, ...);
2430 
2431 /* server-client.c */
2432 RB_PROTOTYPE(client_windows, client_window, entry, server_client_window_cmp);
2433 u_int	 server_client_how_many(void);
2434 void	 server_client_set_overlay(struct client *, u_int, overlay_check_cb,
2435 	     overlay_mode_cb, overlay_draw_cb, overlay_key_cb,
2436 	     overlay_free_cb, void *);
2437 void	 server_client_clear_overlay(struct client *);
2438 void	 server_client_set_key_table(struct client *, const char *);
2439 const char *server_client_get_key_table(struct client *);
2440 int	 server_client_check_nested(struct client *);
2441 int	 server_client_handle_key(struct client *, struct key_event *);
2442 struct client *server_client_create(int);
2443 int	 server_client_open(struct client *, char **);
2444 void	 server_client_unref(struct client *);
2445 void	 server_client_lost(struct client *);
2446 void	 server_client_suspend(struct client *);
2447 void	 server_client_detach(struct client *, enum msgtype);
2448 void	 server_client_exec(struct client *, const char *);
2449 void	 server_client_loop(void);
2450 void	 server_client_push_stdout(struct client *);
2451 void	 server_client_push_stderr(struct client *);
2452 const char *server_client_get_cwd(struct client *, struct session *);
2453 void	 server_client_set_flags(struct client *, const char *);
2454 const char *server_client_get_flags(struct client *);
2455 struct window_pane *server_client_get_pane(struct client *);
2456 void	 server_client_set_pane(struct client *, struct window_pane *);
2457 void	 server_client_remove_pane(struct window_pane *);
2458 
2459 /* server-fn.c */
2460 void	 server_redraw_client(struct client *);
2461 void	 server_status_client(struct client *);
2462 void	 server_redraw_session(struct session *);
2463 void	 server_redraw_session_group(struct session *);
2464 void	 server_status_session(struct session *);
2465 void	 server_status_session_group(struct session *);
2466 void	 server_redraw_window(struct window *);
2467 void	 server_redraw_window_borders(struct window *);
2468 void	 server_status_window(struct window *);
2469 void	 server_lock(void);
2470 void	 server_lock_session(struct session *);
2471 void	 server_lock_client(struct client *);
2472 void	 server_kill_pane(struct window_pane *);
2473 void	 server_kill_window(struct window *, int);
2474 void	 server_renumber_session(struct session *);
2475 void	 server_renumber_all(void);
2476 int	 server_link_window(struct session *,
2477 	     struct winlink *, struct session *, int, int, int, char **);
2478 void	 server_unlink_window(struct session *, struct winlink *);
2479 void	 server_destroy_pane(struct window_pane *, int);
2480 void	 server_destroy_session(struct session *);
2481 void	 server_check_unattached(void);
2482 void	 server_unzoom_window(struct window *);
2483 
2484 /* status.c */
2485 void	 status_timer_start(struct client *);
2486 void	 status_timer_start_all(void);
2487 void	 status_update_cache(struct session *);
2488 int	 status_at_line(struct client *);
2489 u_int	 status_line_size(struct client *);
2490 struct style_range *status_get_range(struct client *, u_int, u_int);
2491 void	 status_init(struct client *);
2492 void	 status_free(struct client *);
2493 int	 status_redraw(struct client *);
2494 void status_message_set(struct client *, int, int, int, const char *, ...);
2495 void	 status_message_clear(struct client *);
2496 int	 status_message_redraw(struct client *);
2497 void	 status_prompt_set(struct client *, struct cmd_find_state *,
2498 	     const char *, const char *, prompt_input_cb, prompt_free_cb,
2499 	     void *, int);
2500 void	 status_prompt_clear(struct client *);
2501 int	 status_prompt_redraw(struct client *);
2502 int	 status_prompt_key(struct client *, key_code);
2503 void	 status_prompt_update(struct client *, const char *, const char *);
2504 void	 status_prompt_load_history(void);
2505 void	 status_prompt_save_history(void);
2506 
2507 /* resize.c */
2508 void	 resize_window(struct window *, u_int, u_int, int, int);
2509 void	 default_window_size(struct client *, struct session *, struct window *,
2510 	     u_int *, u_int *, u_int *, u_int *, int);
2511 void	 recalculate_size(struct window *, int);
2512 void	 recalculate_sizes(void);
2513 void	 recalculate_sizes_now(int);
2514 
2515 /* input.c */
2516 struct input_ctx *input_init(struct window_pane *, struct bufferevent *);
2517 void	 input_free(struct input_ctx *);
2518 void	 input_reset(struct input_ctx *, int);
2519 struct evbuffer *input_pending(struct input_ctx *);
2520 void	 input_parse_pane(struct window_pane *);
2521 void	 input_parse_buffer(struct window_pane *, u_char *, size_t);
2522 void	 input_parse_screen(struct input_ctx *, struct screen *,
2523 	     screen_write_init_ctx_cb, void *, u_char *, size_t);
2524 
2525 /* input-key.c */
2526 void	 input_key_build(void);
2527 int	 input_key_pane(struct window_pane *, key_code, struct mouse_event *);
2528 int	 input_key(struct screen *, struct bufferevent *, key_code);
2529 int	 input_key_get_mouse(struct screen *, struct mouse_event *, u_int,
2530 	     u_int, const char **, size_t *);
2531 
2532 /* colour.c */
2533 int	 colour_find_rgb(u_char, u_char, u_char);
2534 int	 colour_join_rgb(u_char, u_char, u_char);
2535 void	 colour_split_rgb(int, u_char *, u_char *, u_char *);
2536 const char *colour_tostring(int);
2537 int	 colour_fromstring(const char *s);
2538 int	 colour_256toRGB(int);
2539 int	 colour_256to16(int);
2540 int	 colour_byname(const char *);
2541 
2542 /* attributes.c */
2543 const char *attributes_tostring(int);
2544 int	 attributes_fromstring(const char *);
2545 
2546 /* grid.c */
2547 extern const struct grid_cell grid_default_cell;
2548 void	 grid_empty_line(struct grid *, u_int, u_int);
2549 int	 grid_cells_equal(const struct grid_cell *, const struct grid_cell *);
2550 int	 grid_cells_look_equal(const struct grid_cell *,
2551 	     const struct grid_cell *);
2552 struct grid *grid_create(u_int, u_int, u_int);
2553 void	 grid_destroy(struct grid *);
2554 int	 grid_compare(struct grid *, struct grid *);
2555 void	 grid_collect_history(struct grid *);
2556 void	 grid_remove_history(struct grid *, u_int );
2557 void	 grid_scroll_history(struct grid *, u_int);
2558 void	 grid_scroll_history_region(struct grid *, u_int, u_int, u_int);
2559 void	 grid_clear_history(struct grid *);
2560 const struct grid_line *grid_peek_line(struct grid *, u_int);
2561 void	 grid_get_cell(struct grid *, u_int, u_int, struct grid_cell *);
2562 void	 grid_set_cell(struct grid *, u_int, u_int, const struct grid_cell *);
2563 void	 grid_set_padding(struct grid *, u_int, u_int);
2564 void	 grid_set_cells(struct grid *, u_int, u_int, const struct grid_cell *,
2565 	     const char *, size_t);
2566 struct grid_line *grid_get_line(struct grid *, u_int);
2567 void	 grid_adjust_lines(struct grid *, u_int);
2568 void	 grid_clear(struct grid *, u_int, u_int, u_int, u_int, u_int);
2569 void	 grid_clear_lines(struct grid *, u_int, u_int, u_int);
2570 void	 grid_move_lines(struct grid *, u_int, u_int, u_int, u_int);
2571 void	 grid_move_cells(struct grid *, u_int, u_int, u_int, u_int, u_int);
2572 char	*grid_string_cells(struct grid *, u_int, u_int, u_int,
2573 	     struct grid_cell **, int, int, int);
2574 void	 grid_duplicate_lines(struct grid *, u_int, struct grid *, u_int,
2575 	     u_int);
2576 void	 grid_reflow(struct grid *, u_int);
2577 void	 grid_wrap_position(struct grid *, u_int, u_int, u_int *, u_int *);
2578 void	 grid_unwrap_position(struct grid *, u_int *, u_int *, u_int, u_int);
2579 u_int	 grid_line_length(struct grid *, u_int);
2580 
2581 /* grid-reader.c */
2582 void	 grid_reader_start(struct grid_reader *, struct grid *, u_int, u_int);
2583 void	 grid_reader_get_cursor(struct grid_reader *, u_int *, u_int *);
2584 u_int	 grid_reader_line_length(struct grid_reader *);
2585 int	 grid_reader_in_set(struct grid_reader *, const char *);
2586 void	 grid_reader_cursor_right(struct grid_reader *, int, int);
2587 void	 grid_reader_cursor_left(struct grid_reader *, int);
2588 void	 grid_reader_cursor_down(struct grid_reader *);
2589 void	 grid_reader_cursor_up(struct grid_reader *);
2590 void	 grid_reader_cursor_start_of_line(struct grid_reader *, int);
2591 void	 grid_reader_cursor_end_of_line(struct grid_reader *, int, int);
2592 void	 grid_reader_cursor_next_word(struct grid_reader *, const char *);
2593 void	 grid_reader_cursor_next_word_end(struct grid_reader *, const char *);
2594 void	 grid_reader_cursor_previous_word(struct grid_reader *, const char *,
2595 	     int);
2596 int	 grid_reader_cursor_jump(struct grid_reader *,
2597 	     const struct utf8_data *);
2598 int	 grid_reader_cursor_jump_back(struct grid_reader *,
2599 	     const struct utf8_data *);
2600 void	 grid_reader_cursor_back_to_indentation(struct grid_reader *);
2601 
2602 /* grid-view.c */
2603 void	 grid_view_get_cell(struct grid *, u_int, u_int, struct grid_cell *);
2604 void	 grid_view_set_cell(struct grid *, u_int, u_int,
2605 	     const struct grid_cell *);
2606 void	 grid_view_set_padding(struct grid *, u_int, u_int);
2607 void	 grid_view_set_cells(struct grid *, u_int, u_int,
2608 	     const struct grid_cell *, const char *, size_t);
2609 void	 grid_view_clear_history(struct grid *, u_int);
2610 void	 grid_view_clear(struct grid *, u_int, u_int, u_int, u_int, u_int);
2611 void	 grid_view_scroll_region_up(struct grid *, u_int, u_int, u_int);
2612 void	 grid_view_scroll_region_down(struct grid *, u_int, u_int, u_int);
2613 void	 grid_view_insert_lines(struct grid *, u_int, u_int, u_int);
2614 void	 grid_view_insert_lines_region(struct grid *, u_int, u_int, u_int,
2615 	     u_int);
2616 void	 grid_view_delete_lines(struct grid *, u_int, u_int, u_int);
2617 void	 grid_view_delete_lines_region(struct grid *, u_int, u_int, u_int,
2618 	     u_int);
2619 void	 grid_view_insert_cells(struct grid *, u_int, u_int, u_int, u_int);
2620 void	 grid_view_delete_cells(struct grid *, u_int, u_int, u_int, u_int);
2621 char	*grid_view_string_cells(struct grid *, u_int, u_int, u_int);
2622 
2623 /* screen-write.c */
2624 void	 screen_write_make_list(struct screen *);
2625 void	 screen_write_free_list(struct screen *);
2626 void	 screen_write_start_pane(struct screen_write_ctx *,
2627 	     struct window_pane *, struct screen *);
2628 void	 screen_write_start(struct screen_write_ctx *, struct screen *);
2629 void	 screen_write_start_callback(struct screen_write_ctx *, struct screen *,
2630 	     screen_write_init_ctx_cb, void *);
2631 void	 screen_write_stop(struct screen_write_ctx *);
2632 void	 screen_write_reset(struct screen_write_ctx *);
2633 size_t printflike(1, 2) screen_write_strlen(const char *, ...);
2634 int printflike(7, 8) screen_write_text(struct screen_write_ctx *, u_int, u_int,
2635 	     u_int, int, const struct grid_cell *, const char *, ...);
2636 void printflike(3, 4) screen_write_puts(struct screen_write_ctx *,
2637 	     const struct grid_cell *, const char *, ...);
2638 void printflike(4, 5) screen_write_nputs(struct screen_write_ctx *,
2639 	     ssize_t, const struct grid_cell *, const char *, ...);
2640 void	 screen_write_vnputs(struct screen_write_ctx *, ssize_t,
2641 	     const struct grid_cell *, const char *, va_list);
2642 void	 screen_write_putc(struct screen_write_ctx *, const struct grid_cell *,
2643 	     u_char);
2644 void	 screen_write_fast_copy(struct screen_write_ctx *, struct screen *,
2645 	     u_int, u_int, u_int, u_int);
2646 void	 screen_write_hline(struct screen_write_ctx *, u_int, int, int);
2647 void	 screen_write_vline(struct screen_write_ctx *, u_int, int, int);
2648 void	 screen_write_menu(struct screen_write_ctx *, struct menu *, int,
2649 	     const struct grid_cell *);
2650 void	 screen_write_box(struct screen_write_ctx *, u_int, u_int);
2651 void	 screen_write_preview(struct screen_write_ctx *, struct screen *, u_int,
2652 	     u_int);
2653 void	 screen_write_backspace(struct screen_write_ctx *);
2654 void	 screen_write_mode_set(struct screen_write_ctx *, int);
2655 void	 screen_write_mode_clear(struct screen_write_ctx *, int);
2656 void	 screen_write_cursorup(struct screen_write_ctx *, u_int);
2657 void	 screen_write_cursordown(struct screen_write_ctx *, u_int);
2658 void	 screen_write_cursorright(struct screen_write_ctx *, u_int);
2659 void	 screen_write_cursorleft(struct screen_write_ctx *, u_int);
2660 void	 screen_write_alignmenttest(struct screen_write_ctx *);
2661 void	 screen_write_insertcharacter(struct screen_write_ctx *, u_int, u_int);
2662 void	 screen_write_deletecharacter(struct screen_write_ctx *, u_int, u_int);
2663 void	 screen_write_clearcharacter(struct screen_write_ctx *, u_int, u_int);
2664 void	 screen_write_insertline(struct screen_write_ctx *, u_int, u_int);
2665 void	 screen_write_deleteline(struct screen_write_ctx *, u_int, u_int);
2666 void	 screen_write_clearline(struct screen_write_ctx *, u_int);
2667 void	 screen_write_clearendofline(struct screen_write_ctx *, u_int);
2668 void	 screen_write_clearstartofline(struct screen_write_ctx *, u_int);
2669 void	 screen_write_cursormove(struct screen_write_ctx *, int, int, int);
2670 void	 screen_write_reverseindex(struct screen_write_ctx *, u_int);
2671 void	 screen_write_scrollregion(struct screen_write_ctx *, u_int, u_int);
2672 void	 screen_write_linefeed(struct screen_write_ctx *, int, u_int);
2673 void	 screen_write_scrollup(struct screen_write_ctx *, u_int, u_int);
2674 void	 screen_write_scrolldown(struct screen_write_ctx *, u_int, u_int);
2675 void	 screen_write_carriagereturn(struct screen_write_ctx *);
2676 void	 screen_write_clearendofscreen(struct screen_write_ctx *, u_int);
2677 void	 screen_write_clearstartofscreen(struct screen_write_ctx *, u_int);
2678 void	 screen_write_clearscreen(struct screen_write_ctx *, u_int);
2679 void	 screen_write_clearhistory(struct screen_write_ctx *);
2680 void	 screen_write_collect_end(struct screen_write_ctx *);
2681 void	 screen_write_collect_add(struct screen_write_ctx *,
2682 	     const struct grid_cell *);
2683 void	 screen_write_cell(struct screen_write_ctx *, const struct grid_cell *);
2684 void	 screen_write_setselection(struct screen_write_ctx *, u_char *, u_int);
2685 void	 screen_write_rawstring(struct screen_write_ctx *, u_char *, u_int);
2686 void	 screen_write_alternateon(struct screen_write_ctx *,
2687 	     struct grid_cell *, int);
2688 void	 screen_write_alternateoff(struct screen_write_ctx *,
2689 	     struct grid_cell *, int);
2690 
2691 /* screen-redraw.c */
2692 void	 screen_redraw_screen(struct client *);
2693 void	 screen_redraw_pane(struct client *, struct window_pane *);
2694 
2695 /* screen.c */
2696 void	 screen_init(struct screen *, u_int, u_int, u_int);
2697 void	 screen_reinit(struct screen *);
2698 void	 screen_free(struct screen *);
2699 void	 screen_reset_tabs(struct screen *);
2700 void	 screen_set_cursor_style(struct screen *, u_int);
2701 void	 screen_set_cursor_colour(struct screen *, const char *);
2702 int	 screen_set_title(struct screen *, const char *);
2703 void	 screen_set_path(struct screen *, const char *);
2704 void	 screen_push_title(struct screen *);
2705 void	 screen_pop_title(struct screen *);
2706 void	 screen_resize(struct screen *, u_int, u_int, int);
2707 void	 screen_resize_cursor(struct screen *, u_int, u_int, int, int, int);
2708 void	 screen_set_selection(struct screen *, u_int, u_int, u_int, u_int,
2709 	     u_int, int, struct grid_cell *);
2710 void	 screen_clear_selection(struct screen *);
2711 void	 screen_hide_selection(struct screen *);
2712 int	 screen_check_selection(struct screen *, u_int, u_int);
2713 void	 screen_select_cell(struct screen *, struct grid_cell *,
2714 	     const struct grid_cell *);
2715 void	 screen_alternate_on(struct screen *, struct grid_cell *, int);
2716 void	 screen_alternate_off(struct screen *, struct grid_cell *, int);
2717 
2718 /* window.c */
2719 extern struct windows windows;
2720 extern struct window_pane_tree all_window_panes;
2721 int		 window_cmp(struct window *, struct window *);
2722 RB_PROTOTYPE(windows, window, entry, window_cmp);
2723 int		 winlink_cmp(struct winlink *, struct winlink *);
2724 RB_PROTOTYPE(winlinks, winlink, entry, winlink_cmp);
2725 int		 window_pane_cmp(struct window_pane *, struct window_pane *);
2726 RB_PROTOTYPE(window_pane_tree, window_pane, tree_entry, window_pane_cmp);
2727 struct winlink	*winlink_find_by_index(struct winlinks *, int);
2728 struct winlink	*winlink_find_by_window(struct winlinks *, struct window *);
2729 struct winlink	*winlink_find_by_window_id(struct winlinks *, u_int);
2730 u_int		 winlink_count(struct winlinks *);
2731 struct winlink	*winlink_add(struct winlinks *, int);
2732 void		 winlink_set_window(struct winlink *, struct window *);
2733 void		 winlink_remove(struct winlinks *, struct winlink *);
2734 struct winlink	*winlink_next(struct winlink *);
2735 struct winlink	*winlink_previous(struct winlink *);
2736 struct winlink	*winlink_next_by_number(struct winlink *, struct session *,
2737 		     int);
2738 struct winlink	*winlink_previous_by_number(struct winlink *, struct session *,
2739 		     int);
2740 void		 winlink_stack_push(struct winlink_stack *, struct winlink *);
2741 void		 winlink_stack_remove(struct winlink_stack *, struct winlink *);
2742 struct window	*window_find_by_id_str(const char *);
2743 struct window	*window_find_by_id(u_int);
2744 void		 window_update_activity(struct window *);
2745 struct window	*window_create(u_int, u_int, u_int, u_int);
2746 void		 window_pane_set_event(struct window_pane *);
2747 struct window_pane *window_get_active_at(struct window *, u_int, u_int);
2748 struct window_pane *window_find_string(struct window *, const char *);
2749 int		 window_has_pane(struct window *, struct window_pane *);
2750 int		 window_set_active_pane(struct window *, struct window_pane *,
2751 		     int);
2752 void		 window_redraw_active_switch(struct window *,
2753 		     struct window_pane *);
2754 struct window_pane *window_add_pane(struct window *, struct window_pane *,
2755 		     u_int, int);
2756 void		 window_resize(struct window *, u_int, u_int, int, int);
2757 void		 window_pane_send_resize(struct window_pane *, int);
2758 int		 window_zoom(struct window_pane *);
2759 int		 window_unzoom(struct window *);
2760 int		 window_push_zoom(struct window *, int, int);
2761 int		 window_pop_zoom(struct window *);
2762 void		 window_lost_pane(struct window *, struct window_pane *);
2763 void		 window_remove_pane(struct window *, struct window_pane *);
2764 struct window_pane *window_pane_at_index(struct window *, u_int);
2765 struct window_pane *window_pane_next_by_number(struct window *,
2766 			struct window_pane *, u_int);
2767 struct window_pane *window_pane_previous_by_number(struct window *,
2768 			struct window_pane *, u_int);
2769 int		 window_pane_index(struct window_pane *, u_int *);
2770 u_int		 window_count_panes(struct window *);
2771 void		 window_destroy_panes(struct window *);
2772 struct window_pane *window_pane_find_by_id_str(const char *);
2773 struct window_pane *window_pane_find_by_id(u_int);
2774 int		 window_pane_destroy_ready(struct window_pane *);
2775 void		 window_pane_resize(struct window_pane *, u_int, u_int);
2776 void		 window_pane_set_palette(struct window_pane *, u_int, int);
2777 void		 window_pane_unset_palette(struct window_pane *, u_int);
2778 void		 window_pane_reset_palette(struct window_pane *);
2779 int		 window_pane_get_palette(struct window_pane *, int);
2780 int		 window_pane_set_mode(struct window_pane *,
2781 		     struct window_pane *, const struct window_mode *,
2782 		     struct cmd_find_state *, struct args *);
2783 void		 window_pane_reset_mode(struct window_pane *);
2784 void		 window_pane_reset_mode_all(struct window_pane *);
2785 int		 window_pane_key(struct window_pane *, struct client *,
2786 		     struct session *, struct winlink *, key_code,
2787 		     struct mouse_event *);
2788 int		 window_pane_visible(struct window_pane *);
2789 u_int		 window_pane_search(struct window_pane *, const char *, int,
2790 		     int);
2791 const char	*window_printable_flags(struct winlink *, int);
2792 struct window_pane *window_pane_find_up(struct window_pane *);
2793 struct window_pane *window_pane_find_down(struct window_pane *);
2794 struct window_pane *window_pane_find_left(struct window_pane *);
2795 struct window_pane *window_pane_find_right(struct window_pane *);
2796 void		 window_set_name(struct window *, const char *);
2797 void		 window_add_ref(struct window *, const char *);
2798 void		 window_remove_ref(struct window *, const char *);
2799 void		 winlink_clear_flags(struct winlink *);
2800 int		 winlink_shuffle_up(struct session *, struct winlink *, int);
2801 int		 window_pane_start_input(struct window_pane *,
2802 		     struct cmdq_item *, char **);
2803 void		*window_pane_get_new_data(struct window_pane *,
2804 		     struct window_pane_offset *, size_t *);
2805 void		 window_pane_update_used_data(struct window_pane *,
2806 		     struct window_pane_offset *, size_t);
2807 
2808 /* layout.c */
2809 u_int		 layout_count_cells(struct layout_cell *);
2810 struct layout_cell *layout_create_cell(struct layout_cell *);
2811 void		 layout_free_cell(struct layout_cell *);
2812 void		 layout_print_cell(struct layout_cell *, const char *, u_int);
2813 void		 layout_destroy_cell(struct window *, struct layout_cell *,
2814 		     struct layout_cell **);
2815 void		 layout_resize_layout(struct window *, struct layout_cell *,
2816 		     enum layout_type, int, int);
2817 struct layout_cell *layout_search_by_border(struct layout_cell *, u_int, u_int);
2818 void		 layout_set_size(struct layout_cell *, u_int, u_int, u_int,
2819 		     u_int);
2820 void		 layout_make_leaf(struct layout_cell *, struct window_pane *);
2821 void		 layout_make_node(struct layout_cell *, enum layout_type);
2822 void		 layout_fix_offsets(struct window *);
2823 void		 layout_fix_panes(struct window *, struct window_pane *);
2824 void		 layout_resize_adjust(struct window *, struct layout_cell *,
2825 		     enum layout_type, int);
2826 void		 layout_init(struct window *, struct window_pane *);
2827 void		 layout_free(struct window *);
2828 void		 layout_resize(struct window *, u_int, u_int);
2829 void		 layout_resize_pane(struct window_pane *, enum layout_type,
2830 		     int, int);
2831 void		 layout_resize_pane_to(struct window_pane *, enum layout_type,
2832 		     u_int);
2833 void		 layout_assign_pane(struct layout_cell *, struct window_pane *,
2834 		     int);
2835 struct layout_cell *layout_split_pane(struct window_pane *, enum layout_type,
2836 		     int, int);
2837 void		 layout_close_pane(struct window_pane *);
2838 int		 layout_spread_cell(struct window *, struct layout_cell *);
2839 void		 layout_spread_out(struct window_pane *);
2840 
2841 /* layout-custom.c */
2842 char		*layout_dump(struct layout_cell *);
2843 int		 layout_parse(struct window *, const char *);
2844 
2845 /* layout-set.c */
2846 int		 layout_set_lookup(const char *);
2847 u_int		 layout_set_select(struct window *, u_int);
2848 u_int		 layout_set_next(struct window *);
2849 u_int		 layout_set_previous(struct window *);
2850 
2851 /* mode-tree.c */
2852 typedef void (*mode_tree_build_cb)(void *, struct mode_tree_sort_criteria *,
2853 				   uint64_t *, const char *);
2854 typedef void (*mode_tree_draw_cb)(void *, void *, struct screen_write_ctx *,
2855 	     u_int, u_int);
2856 typedef int (*mode_tree_search_cb)(void *, void *, const char *);
2857 typedef void (*mode_tree_menu_cb)(void *, struct client *, key_code);
2858 typedef u_int (*mode_tree_height_cb)(void *, u_int);
2859 typedef key_code (*mode_tree_key_cb)(void *, void *, u_int);
2860 typedef void (*mode_tree_each_cb)(void *, void *, struct client *, key_code);
2861 u_int	 mode_tree_count_tagged(struct mode_tree_data *);
2862 void	*mode_tree_get_current(struct mode_tree_data *);
2863 const char *mode_tree_get_current_name(struct mode_tree_data *);
2864 void	 mode_tree_expand_current(struct mode_tree_data *);
2865 void	 mode_tree_collapse_current(struct mode_tree_data *);
2866 void	 mode_tree_expand(struct mode_tree_data *, uint64_t);
2867 int	 mode_tree_set_current(struct mode_tree_data *, uint64_t);
2868 void	 mode_tree_each_tagged(struct mode_tree_data *, mode_tree_each_cb,
2869 	     struct client *, key_code, int);
2870 void	 mode_tree_up(struct mode_tree_data *, int);
2871 void	 mode_tree_down(struct mode_tree_data *, int);
2872 struct mode_tree_data *mode_tree_start(struct window_pane *, struct args *,
2873 	     mode_tree_build_cb, mode_tree_draw_cb, mode_tree_search_cb,
2874 	     mode_tree_menu_cb, mode_tree_height_cb, mode_tree_key_cb, void *,
2875 	     const struct menu_item *, const char **, u_int, struct screen **);
2876 void	 mode_tree_zoom(struct mode_tree_data *, struct args *);
2877 void	 mode_tree_build(struct mode_tree_data *);
2878 void	 mode_tree_free(struct mode_tree_data *);
2879 void	 mode_tree_resize(struct mode_tree_data *, u_int, u_int);
2880 struct mode_tree_item *mode_tree_add(struct mode_tree_data *,
2881 	     struct mode_tree_item *, void *, uint64_t, const char *,
2882 	     const char *, int);
2883 void	 mode_tree_draw_as_parent(struct mode_tree_item *);
2884 void	 mode_tree_no_tag(struct mode_tree_item *);
2885 void	 mode_tree_remove(struct mode_tree_data *, struct mode_tree_item *);
2886 void	 mode_tree_draw(struct mode_tree_data *);
2887 int	 mode_tree_key(struct mode_tree_data *, struct client *, key_code *,
2888 	     struct mouse_event *, u_int *, u_int *);
2889 void	 mode_tree_run_command(struct client *, struct cmd_find_state *,
2890 	     const char *, const char *);
2891 
2892 /* window-buffer.c */
2893 extern const struct window_mode window_buffer_mode;
2894 
2895 /* window-tree.c */
2896 extern const struct window_mode window_tree_mode;
2897 
2898 /* window-clock.c */
2899 extern const struct window_mode window_clock_mode;
2900 extern const char window_clock_table[14][5][5];
2901 
2902 /* window-client.c */
2903 extern const struct window_mode window_client_mode;
2904 
2905 /* window-copy.c */
2906 extern const struct window_mode window_copy_mode;
2907 extern const struct window_mode window_view_mode;
2908 void printflike(2, 3) window_copy_add(struct window_pane *, const char *, ...);
2909 void		 window_copy_vadd(struct window_pane *, const char *, va_list);
2910 void		 window_copy_pageup(struct window_pane *, int);
2911 void		 window_copy_start_drag(struct client *, struct mouse_event *);
2912 char		*window_copy_get_word(struct window_pane *, u_int, u_int);
2913 char		*window_copy_get_line(struct window_pane *, u_int);
2914 
2915 /* window-option.c */
2916 extern const struct window_mode window_customize_mode;
2917 
2918 /* names.c */
2919 void	 check_window_name(struct window *);
2920 char	*default_window_name(struct window *);
2921 char	*parse_window_name(const char *);
2922 
2923 /* control.c */
2924 void	control_discard(struct client *);
2925 void	control_start(struct client *);
2926 void	control_stop(struct client *);
2927 void	control_set_pane_on(struct client *, struct window_pane *);
2928 void	control_set_pane_off(struct client *, struct window_pane *);
2929 void	control_continue_pane(struct client *, struct window_pane *);
2930 void	control_pause_pane(struct client *, struct window_pane *);
2931 struct window_pane_offset *control_pane_offset(struct client *,
2932 	   struct window_pane *, int *);
2933 void	control_reset_offsets(struct client *);
2934 void printflike(2, 3) control_write(struct client *, const char *, ...);
2935 void	control_write_output(struct client *, struct window_pane *);
2936 int	control_all_done(struct client *);
2937 void	control_add_sub(struct client *, const char *, enum control_sub_type,
2938     	   int, const char *);
2939 void	control_remove_sub(struct client *, const char *);
2940 
2941 /* control-notify.c */
2942 void	control_notify_input(struct client *, struct window_pane *,
2943 	    const u_char *, size_t);
2944 void	control_notify_pane_mode_changed(int);
2945 void	control_notify_window_layout_changed(struct window *);
2946 void	control_notify_window_pane_changed(struct window *);
2947 void	control_notify_window_unlinked(struct session *, struct window *);
2948 void	control_notify_window_linked(struct session *, struct window *);
2949 void	control_notify_window_renamed(struct window *);
2950 void	control_notify_client_session_changed(struct client *);
2951 void	control_notify_client_detached(struct client *);
2952 void	control_notify_session_renamed(struct session *);
2953 void	control_notify_session_created(struct session *);
2954 void	control_notify_session_closed(struct session *);
2955 void	control_notify_session_window_changed(struct session *);
2956 
2957 /* session.c */
2958 extern struct sessions sessions;
2959 int	session_cmp(struct session *, struct session *);
2960 RB_PROTOTYPE(sessions, session, entry, session_cmp);
2961 int		 session_alive(struct session *);
2962 struct session	*session_find(const char *);
2963 struct session	*session_find_by_id_str(const char *);
2964 struct session	*session_find_by_id(u_int);
2965 struct session	*session_create(const char *, const char *, const char *,
2966 		     struct environ *, struct options *, struct termios *);
2967 void		 session_destroy(struct session *, int,	 const char *);
2968 void		 session_add_ref(struct session *, const char *);
2969 void		 session_remove_ref(struct session *, const char *);
2970 char		*session_check_name(const char *);
2971 void		 session_update_activity(struct session *, struct timeval *);
2972 struct session	*session_next_session(struct session *);
2973 struct session	*session_previous_session(struct session *);
2974 struct winlink	*session_new(struct session *, const char *, int, char **,
2975 		     const char *, const char *, int, char **);
2976 struct winlink	*session_attach(struct session *, struct window *, int,
2977 		     char **);
2978 int		 session_detach(struct session *, struct winlink *);
2979 int		 session_has(struct session *, struct window *);
2980 int		 session_is_linked(struct session *, struct window *);
2981 int		 session_next(struct session *, int);
2982 int		 session_previous(struct session *, int);
2983 int		 session_select(struct session *, int);
2984 int		 session_last(struct session *);
2985 int		 session_set_current(struct session *, struct winlink *);
2986 struct session_group *session_group_contains(struct session *);
2987 struct session_group *session_group_find(const char *);
2988 struct session_group *session_group_new(const char *);
2989 void		 session_group_add(struct session_group *, struct session *);
2990 void		 session_group_synchronize_to(struct session *);
2991 void		 session_group_synchronize_from(struct session *);
2992 u_int		 session_group_count(struct session_group *);
2993 u_int		 session_group_attached_count(struct session_group *);
2994 void		 session_renumber_windows(struct session *);
2995 
2996 /* utf8.c */
2997 utf8_char	 utf8_build_one(u_char);
2998 enum utf8_state	 utf8_from_data(const struct utf8_data *, utf8_char *);
2999 void		 utf8_to_data(utf8_char, struct utf8_data *);
3000 void		 utf8_set(struct utf8_data *, u_char);
3001 void		 utf8_copy(struct utf8_data *, const struct utf8_data *);
3002 enum utf8_state	 utf8_open(struct utf8_data *, u_char);
3003 enum utf8_state	 utf8_append(struct utf8_data *, u_char);
3004 int		 utf8_isvalid(const char *);
3005 int		 utf8_strvis(char *, const char *, size_t, int);
3006 int		 utf8_stravis(char **, const char *, int);
3007 int		 utf8_stravisx(char **, const char *, size_t, int);
3008 char		*utf8_sanitize(const char *);
3009 size_t		 utf8_strlen(const struct utf8_data *);
3010 u_int		 utf8_strwidth(const struct utf8_data *, ssize_t);
3011 struct utf8_data *utf8_fromcstr(const char *);
3012 char		*utf8_tocstr(struct utf8_data *);
3013 u_int		 utf8_cstrwidth(const char *);
3014 char		*utf8_padcstr(const char *, u_int);
3015 char		*utf8_rpadcstr(const char *, u_int);
3016 int		 utf8_cstrhas(const char *, const struct utf8_data *);
3017 
3018 /* procname.c */
3019 char   *get_proc_name(int, char *);
3020 char   *get_proc_cwd(int);
3021 
3022 /* log.c */
3023 void	log_add_level(void);
3024 int	log_get_level(void);
3025 void	log_open(const char *);
3026 void	log_toggle(const char *);
3027 void	log_close(void);
3028 void printflike(1, 2) log_debug(const char *, ...);
3029 __dead void printflike(1, 2) fatal(const char *, ...);
3030 __dead void printflike(1, 2) fatalx(const char *, ...);
3031 
3032 /* menu.c */
3033 #define MENU_NOMOUSE 0x1
3034 #define MENU_TAB 0x2
3035 #define MENU_STAYOPEN 0x4
3036 struct menu	*menu_create(const char *);
3037 void		 menu_add_items(struct menu *, const struct menu_item *,
3038 		    struct cmdq_item *, struct client *,
3039 		    struct cmd_find_state *);
3040 void		 menu_add_item(struct menu *, const struct menu_item *,
3041 		    struct cmdq_item *, struct client *,
3042 		    struct cmd_find_state *);
3043 void		 menu_free(struct menu *);
3044 int		 menu_display(struct menu *, int, struct cmdq_item *, u_int,
3045 		    u_int, struct client *, struct cmd_find_state *,
3046 		    menu_choice_cb, void *);
3047 
3048 /* popup.c */
3049 #define POPUP_CLOSEEXIT 0x1
3050 #define POPUP_CLOSEEXITZERO 0x2
3051 typedef void (*popup_close_cb)(int, void *);
3052 typedef void (*popup_finish_edit_cb)(char *, size_t, void *);
3053 int		 popup_display(int, struct cmdq_item *, u_int, u_int, u_int,
3054 		    u_int, const char *, int, char **, const char *,
3055 		    struct client *, struct session *, popup_close_cb, void *);
3056 int		 popup_editor(struct client *, const char *, size_t,
3057 		    popup_finish_edit_cb, void *);
3058 
3059 /* style.c */
3060 int		 style_parse(struct style *,const struct grid_cell *,
3061 		     const char *);
3062 const char	*style_tostring(struct style *);
3063 void		 style_add(struct grid_cell *, struct options *,
3064 		     const char *, struct format_tree *);
3065 void		 style_apply(struct grid_cell *, struct options *,
3066 		     const char *, struct format_tree *);
3067 void		 style_set(struct style *, const struct grid_cell *);
3068 void		 style_copy(struct style *, struct style *);
3069 
3070 /* spawn.c */
3071 struct winlink	*spawn_window(struct spawn_context *, char **);
3072 struct window_pane *spawn_pane(struct spawn_context *, char **);
3073 
3074 /* regsub.c */
3075 char		*regsub(const char *, const char *, const char *, int);
3076 
3077 #endif /* TMUX_H */
3078