xref: /openbsd-src/usr.bin/tmux/tmux.h (revision 46035553bfdd96e63c94e32da0210227ec2e3cf1)
1 /* $OpenBSD: tmux.h,v 1.1082 2020/12/22 09:22:14 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_collect_item;
59 struct screen_write_collect_line;
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_BLINK,
265 	TTYC_BOLD,
266 	TTYC_CIVIS,
267 	TTYC_CLEAR,
268 	TTYC_CLMG,
269 	TTYC_CMG,
270 	TTYC_CNORM,
271 	TTYC_COLORS,
272 	TTYC_CR,
273 	TTYC_CS,
274 	TTYC_CSR,
275 	TTYC_CUB,
276 	TTYC_CUB1,
277 	TTYC_CUD,
278 	TTYC_CUD1,
279 	TTYC_CUF,
280 	TTYC_CUF1,
281 	TTYC_CUP,
282 	TTYC_CUU,
283 	TTYC_CUU1,
284 	TTYC_CVVIS,
285 	TTYC_DCH,
286 	TTYC_DCH1,
287 	TTYC_DIM,
288 	TTYC_DL,
289 	TTYC_DL1,
290 	TTYC_DSBP,
291 	TTYC_DSEKS,
292 	TTYC_DSFCS,
293 	TTYC_DSMG,
294 	TTYC_E3,
295 	TTYC_ECH,
296 	TTYC_ED,
297 	TTYC_EL,
298 	TTYC_EL1,
299 	TTYC_ENACS,
300 	TTYC_ENBP,
301 	TTYC_ENEKS,
302 	TTYC_ENFCS,
303 	TTYC_ENMG,
304 	TTYC_FSL,
305 	TTYC_HOME,
306 	TTYC_HPA,
307 	TTYC_ICH,
308 	TTYC_ICH1,
309 	TTYC_IL,
310 	TTYC_IL1,
311 	TTYC_INDN,
312 	TTYC_INVIS,
313 	TTYC_KCBT,
314 	TTYC_KCUB1,
315 	TTYC_KCUD1,
316 	TTYC_KCUF1,
317 	TTYC_KCUU1,
318 	TTYC_KDC2,
319 	TTYC_KDC3,
320 	TTYC_KDC4,
321 	TTYC_KDC5,
322 	TTYC_KDC6,
323 	TTYC_KDC7,
324 	TTYC_KDCH1,
325 	TTYC_KDN2,
326 	TTYC_KDN3,
327 	TTYC_KDN4,
328 	TTYC_KDN5,
329 	TTYC_KDN6,
330 	TTYC_KDN7,
331 	TTYC_KEND,
332 	TTYC_KEND2,
333 	TTYC_KEND3,
334 	TTYC_KEND4,
335 	TTYC_KEND5,
336 	TTYC_KEND6,
337 	TTYC_KEND7,
338 	TTYC_KF1,
339 	TTYC_KF10,
340 	TTYC_KF11,
341 	TTYC_KF12,
342 	TTYC_KF13,
343 	TTYC_KF14,
344 	TTYC_KF15,
345 	TTYC_KF16,
346 	TTYC_KF17,
347 	TTYC_KF18,
348 	TTYC_KF19,
349 	TTYC_KF2,
350 	TTYC_KF20,
351 	TTYC_KF21,
352 	TTYC_KF22,
353 	TTYC_KF23,
354 	TTYC_KF24,
355 	TTYC_KF25,
356 	TTYC_KF26,
357 	TTYC_KF27,
358 	TTYC_KF28,
359 	TTYC_KF29,
360 	TTYC_KF3,
361 	TTYC_KF30,
362 	TTYC_KF31,
363 	TTYC_KF32,
364 	TTYC_KF33,
365 	TTYC_KF34,
366 	TTYC_KF35,
367 	TTYC_KF36,
368 	TTYC_KF37,
369 	TTYC_KF38,
370 	TTYC_KF39,
371 	TTYC_KF4,
372 	TTYC_KF40,
373 	TTYC_KF41,
374 	TTYC_KF42,
375 	TTYC_KF43,
376 	TTYC_KF44,
377 	TTYC_KF45,
378 	TTYC_KF46,
379 	TTYC_KF47,
380 	TTYC_KF48,
381 	TTYC_KF49,
382 	TTYC_KF5,
383 	TTYC_KF50,
384 	TTYC_KF51,
385 	TTYC_KF52,
386 	TTYC_KF53,
387 	TTYC_KF54,
388 	TTYC_KF55,
389 	TTYC_KF56,
390 	TTYC_KF57,
391 	TTYC_KF58,
392 	TTYC_KF59,
393 	TTYC_KF6,
394 	TTYC_KF60,
395 	TTYC_KF61,
396 	TTYC_KF62,
397 	TTYC_KF63,
398 	TTYC_KF7,
399 	TTYC_KF8,
400 	TTYC_KF9,
401 	TTYC_KHOM2,
402 	TTYC_KHOM3,
403 	TTYC_KHOM4,
404 	TTYC_KHOM5,
405 	TTYC_KHOM6,
406 	TTYC_KHOM7,
407 	TTYC_KHOME,
408 	TTYC_KIC2,
409 	TTYC_KIC3,
410 	TTYC_KIC4,
411 	TTYC_KIC5,
412 	TTYC_KIC6,
413 	TTYC_KIC7,
414 	TTYC_KICH1,
415 	TTYC_KIND,
416 	TTYC_KLFT2,
417 	TTYC_KLFT3,
418 	TTYC_KLFT4,
419 	TTYC_KLFT5,
420 	TTYC_KLFT6,
421 	TTYC_KLFT7,
422 	TTYC_KMOUS,
423 	TTYC_KNP,
424 	TTYC_KNXT2,
425 	TTYC_KNXT3,
426 	TTYC_KNXT4,
427 	TTYC_KNXT5,
428 	TTYC_KNXT6,
429 	TTYC_KNXT7,
430 	TTYC_KPP,
431 	TTYC_KPRV2,
432 	TTYC_KPRV3,
433 	TTYC_KPRV4,
434 	TTYC_KPRV5,
435 	TTYC_KPRV6,
436 	TTYC_KPRV7,
437 	TTYC_KRI,
438 	TTYC_KRIT2,
439 	TTYC_KRIT3,
440 	TTYC_KRIT4,
441 	TTYC_KRIT5,
442 	TTYC_KRIT6,
443 	TTYC_KRIT7,
444 	TTYC_KUP2,
445 	TTYC_KUP3,
446 	TTYC_KUP4,
447 	TTYC_KUP5,
448 	TTYC_KUP6,
449 	TTYC_KUP7,
450 	TTYC_MS,
451 	TTYC_OL,
452 	TTYC_OP,
453 	TTYC_REV,
454 	TTYC_RGB,
455 	TTYC_RI,
456 	TTYC_RIN,
457 	TTYC_RMACS,
458 	TTYC_RMCUP,
459 	TTYC_RMKX,
460 	TTYC_SE,
461 	TTYC_SETAB,
462 	TTYC_SETAF,
463 	TTYC_SETAL,
464 	TTYC_SETRGBB,
465 	TTYC_SETRGBF,
466 	TTYC_SETULC,
467 	TTYC_SGR0,
468 	TTYC_SITM,
469 	TTYC_SMACS,
470 	TTYC_SMCUP,
471 	TTYC_SMKX,
472 	TTYC_SMOL,
473 	TTYC_SMSO,
474 	TTYC_SMUL,
475 	TTYC_SMULX,
476 	TTYC_SMXX,
477 	TTYC_SS,
478 	TTYC_SYNC,
479 	TTYC_TC,
480 	TTYC_TSL,
481 	TTYC_U8,
482 	TTYC_VPA,
483 	TTYC_XT
484 };
485 
486 /* Message codes. */
487 enum msgtype {
488 	MSG_VERSION = 12,
489 
490 	MSG_IDENTIFY_FLAGS = 100,
491 	MSG_IDENTIFY_TERM,
492 	MSG_IDENTIFY_TTYNAME,
493 	MSG_IDENTIFY_OLDCWD, /* unused */
494 	MSG_IDENTIFY_STDIN,
495 	MSG_IDENTIFY_ENVIRON,
496 	MSG_IDENTIFY_DONE,
497 	MSG_IDENTIFY_CLIENTPID,
498 	MSG_IDENTIFY_CWD,
499 	MSG_IDENTIFY_FEATURES,
500 	MSG_IDENTIFY_STDOUT,
501 	MSG_IDENTIFY_LONGFLAGS,
502 
503 	MSG_COMMAND = 200,
504 	MSG_DETACH,
505 	MSG_DETACHKILL,
506 	MSG_EXIT,
507 	MSG_EXITED,
508 	MSG_EXITING,
509 	MSG_LOCK,
510 	MSG_READY,
511 	MSG_RESIZE,
512 	MSG_SHELL,
513 	MSG_SHUTDOWN,
514 	MSG_OLDSTDERR, /* unused */
515 	MSG_OLDSTDIN, /* unused */
516 	MSG_OLDSTDOUT, /* unused */
517 	MSG_SUSPEND,
518 	MSG_UNLOCK,
519 	MSG_WAKEUP,
520 	MSG_EXEC,
521 	MSG_FLAGS,
522 
523 	MSG_READ_OPEN = 300,
524 	MSG_READ,
525 	MSG_READ_DONE,
526 	MSG_WRITE_OPEN,
527 	MSG_WRITE,
528 	MSG_WRITE_READY,
529 	MSG_WRITE_CLOSE
530 };
531 
532 /*
533  * Message data.
534  *
535  * Don't forget to bump PROTOCOL_VERSION if any of these change!
536  */
537 struct msg_command {
538 	int	argc;
539 }; /* followed by packed argv */
540 
541 struct msg_read_open {
542 	int	stream;
543 	int	fd;
544 }; /* followed by path */
545 
546 struct msg_read_data {
547 	int	stream;
548 };
549 
550 struct msg_read_done {
551 	int	stream;
552 	int	error;
553 };
554 
555 struct msg_write_open {
556 	int	stream;
557 	int	fd;
558 	int	flags;
559 }; /* followed by path */
560 
561 struct msg_write_data {
562 	int	stream;
563 }; /* followed by data */
564 
565 struct msg_write_ready {
566 	int	stream;
567 	int	error;
568 };
569 
570 struct msg_write_close {
571 	int	stream;
572 };
573 
574 /* Mode keys. */
575 #define MODEKEY_EMACS 0
576 #define MODEKEY_VI 1
577 
578 /* Modes. */
579 #define MODE_CURSOR 0x1
580 #define MODE_INSERT 0x2
581 #define MODE_KCURSOR 0x4
582 #define MODE_KKEYPAD 0x8
583 #define MODE_WRAP 0x10
584 #define MODE_MOUSE_STANDARD 0x20
585 #define MODE_MOUSE_BUTTON 0x40
586 #define MODE_BLINKING 0x80
587 #define MODE_MOUSE_UTF8 0x100
588 #define MODE_MOUSE_SGR 0x200
589 #define MODE_BRACKETPASTE 0x400
590 #define MODE_FOCUSON 0x800
591 #define MODE_MOUSE_ALL 0x1000
592 #define MODE_ORIGIN 0x2000
593 #define MODE_CRLF 0x4000
594 #define MODE_KEXTENDED 0x8000
595 
596 #define ALL_MODES 0xffffff
597 #define ALL_MOUSE_MODES (MODE_MOUSE_STANDARD|MODE_MOUSE_BUTTON|MODE_MOUSE_ALL)
598 #define MOTION_MOUSE_MODES (MODE_MOUSE_BUTTON|MODE_MOUSE_ALL)
599 
600 /* A single UTF-8 character. */
601 typedef u_int utf8_char;
602 
603 /*
604  * An expanded UTF-8 character. UTF8_SIZE must be big enough to hold combining
605  * characters as well. It can't be more than 32 bytes without changes to how
606  * characters are stored.
607  */
608 #define UTF8_SIZE 21
609 struct utf8_data {
610 	u_char	data[UTF8_SIZE];
611 
612 	u_char	have;
613 	u_char	size;
614 
615 	u_char	width;	/* 0xff if invalid */
616 };
617 enum utf8_state {
618 	UTF8_MORE,
619 	UTF8_DONE,
620 	UTF8_ERROR
621 };
622 
623 /* Colour flags. */
624 #define COLOUR_FLAG_256 0x01000000
625 #define COLOUR_FLAG_RGB 0x02000000
626 
627 /* Special colours. */
628 #define COLOUR_DEFAULT(c) ((c) == 8 || (c) == 9)
629 
630 /* Grid attributes. Anything above 0xff is stored in an extended cell. */
631 #define GRID_ATTR_BRIGHT 0x1
632 #define GRID_ATTR_DIM 0x2
633 #define GRID_ATTR_UNDERSCORE 0x4
634 #define GRID_ATTR_BLINK 0x8
635 #define GRID_ATTR_REVERSE 0x10
636 #define GRID_ATTR_HIDDEN 0x20
637 #define GRID_ATTR_ITALICS 0x40
638 #define GRID_ATTR_CHARSET 0x80	/* alternative character set */
639 #define GRID_ATTR_STRIKETHROUGH 0x100
640 #define GRID_ATTR_UNDERSCORE_2 0x200
641 #define GRID_ATTR_UNDERSCORE_3 0x400
642 #define GRID_ATTR_UNDERSCORE_4 0x800
643 #define GRID_ATTR_UNDERSCORE_5 0x1000
644 #define GRID_ATTR_OVERLINE 0x2000
645 
646 /* All underscore attributes. */
647 #define GRID_ATTR_ALL_UNDERSCORE \
648 	(GRID_ATTR_UNDERSCORE|	 \
649 	 GRID_ATTR_UNDERSCORE_2| \
650 	 GRID_ATTR_UNDERSCORE_3| \
651 	 GRID_ATTR_UNDERSCORE_4| \
652 	 GRID_ATTR_UNDERSCORE_5)
653 
654 /* Grid flags. */
655 #define GRID_FLAG_FG256 0x1
656 #define GRID_FLAG_BG256 0x2
657 #define GRID_FLAG_PADDING 0x4
658 #define GRID_FLAG_EXTENDED 0x8
659 #define GRID_FLAG_SELECTED 0x10
660 #define GRID_FLAG_NOPALETTE 0x20
661 #define GRID_FLAG_CLEARED 0x40
662 
663 /* Grid line flags. */
664 #define GRID_LINE_WRAPPED 0x1
665 #define GRID_LINE_EXTENDED 0x2
666 #define GRID_LINE_DEAD 0x4
667 
668 /* Grid cell data. */
669 struct grid_cell {
670 	struct utf8_data	data;
671 	u_short			attr;
672 	u_char			flags;
673 	int			fg;
674 	int			bg;
675 	int			us;
676 };
677 
678 /* Grid extended cell entry. */
679 struct grid_extd_entry {
680 	utf8_char		data;
681 	u_short			attr;
682 	u_char			flags;
683 	int			fg;
684 	int			bg;
685 	int			us;
686 } __packed;
687 
688 /* Grid cell entry. */
689 struct grid_cell_entry {
690 	u_char			flags;
691 	union {
692 		u_int		offset;
693 		struct {
694 			u_char	attr;
695 			u_char	fg;
696 			u_char	bg;
697 			u_char	data;
698 		} data;
699 	};
700 } __packed;
701 
702 /* Grid line. */
703 struct grid_line {
704 	u_int			 cellused;
705 	u_int			 cellsize;
706 	struct grid_cell_entry	*celldata;
707 
708 	u_int			 extdsize;
709 	struct grid_extd_entry	*extddata;
710 
711 	int			 flags;
712 } __packed;
713 
714 /* Entire grid of cells. */
715 struct grid {
716 	int			 flags;
717 #define GRID_HISTORY 0x1 /* scroll lines into history */
718 
719 	u_int			 sx;
720 	u_int			 sy;
721 
722 	u_int			 hscrolled;
723 	u_int			 hsize;
724 	u_int			 hlimit;
725 
726 	struct grid_line	*linedata;
727 };
728 
729 /* Virtual cursor in a grid. */
730 struct grid_reader {
731 	struct grid	*gd;
732 	u_int		 cx;
733 	u_int		 cy;
734 };
735 
736 /* Style alignment. */
737 enum style_align {
738 	STYLE_ALIGN_DEFAULT,
739 	STYLE_ALIGN_LEFT,
740 	STYLE_ALIGN_CENTRE,
741 	STYLE_ALIGN_RIGHT
742 };
743 
744 /* Style list. */
745 enum style_list {
746 	STYLE_LIST_OFF,
747 	STYLE_LIST_ON,
748 	STYLE_LIST_FOCUS,
749 	STYLE_LIST_LEFT_MARKER,
750 	STYLE_LIST_RIGHT_MARKER,
751 };
752 
753 /* Style range. */
754 enum style_range_type {
755 	STYLE_RANGE_NONE,
756 	STYLE_RANGE_LEFT,
757 	STYLE_RANGE_RIGHT,
758 	STYLE_RANGE_WINDOW
759 };
760 struct style_range {
761 	enum style_range_type	 type;
762 	u_int			 argument;
763 
764 	u_int			 start;
765 	u_int			 end; /* not included */
766 
767 	TAILQ_ENTRY(style_range) entry;
768 };
769 TAILQ_HEAD(style_ranges, style_range);
770 
771 /* Style default. */
772 enum style_default_type {
773 	STYLE_DEFAULT_BASE,
774 	STYLE_DEFAULT_PUSH,
775 	STYLE_DEFAULT_POP
776 };
777 
778 /* Style option. */
779 struct style {
780 	struct grid_cell	gc;
781 	int			ignore;
782 
783 	int			fill;
784 	enum style_align	align;
785 	enum style_list		list;
786 
787 	enum style_range_type	range_type;
788 	u_int			range_argument;
789 
790 	enum style_default_type	default_type;
791 };
792 
793 /* Virtual screen. */
794 struct screen_sel;
795 struct screen_titles;
796 struct screen {
797 	char			*title;
798 	char			*path;
799 	struct screen_titles	*titles;
800 
801 	struct grid		*grid;		/* grid data */
802 
803 	u_int			 cx;		/* cursor x */
804 	u_int			 cy;		/* cursor y */
805 
806 	u_int			 cstyle;	/* cursor style */
807 	char			*ccolour;	/* cursor colour string */
808 
809 	u_int			 rupper;	/* scroll region top */
810 	u_int			 rlower;	/* scroll region bottom */
811 
812 	int			 mode;
813 
814 	u_int			 saved_cx;
815 	u_int			 saved_cy;
816 	struct grid		*saved_grid;
817 	struct grid_cell	 saved_cell;
818 	int			 saved_flags;
819 
820 	bitstr_t		*tabs;
821 	struct screen_sel	*sel;
822 
823 	struct screen_write_collect_line *write_list;
824 };
825 
826 /* Screen write context. */
827 typedef void (*screen_write_init_ctx_cb)(struct screen_write_ctx *,
828     struct tty_ctx *);
829 struct screen_write_ctx {
830 	struct window_pane	*wp;
831 	struct screen		*s;
832 
833 	int			 flags;
834 #define SCREEN_WRITE_SYNC 0x1
835 
836 	screen_write_init_ctx_cb init_ctx_cb;
837 	void			*arg;
838 
839 	struct screen_write_collect_item *item;
840 	u_int			 scrolled;
841 	u_int			 bg;
842 
843 	u_int			 cells;
844 	u_int			 written;
845 	u_int			 skipped;
846 };
847 
848 /* Screen redraw context. */
849 struct screen_redraw_ctx {
850 	struct client	*c;
851 
852 	u_int		 statuslines;
853 	int		 statustop;
854 
855 	int		 pane_status;
856 	int		 pane_lines;
857 
858 	u_int		 sx;
859 	u_int		 sy;
860 	u_int		 ox;
861 	u_int		 oy;
862 };
863 
864 /* Screen size. */
865 #define screen_size_x(s) ((s)->grid->sx)
866 #define screen_size_y(s) ((s)->grid->sy)
867 #define screen_hsize(s) ((s)->grid->hsize)
868 #define screen_hlimit(s) ((s)->grid->hlimit)
869 
870 /* Menu. */
871 struct menu_item {
872 	const char	*name;
873 	key_code	 key;
874 	const char	*command;
875 };
876 struct menu {
877 	const char		*title;
878 	struct menu_item	*items;
879 	u_int			 count;
880 	u_int			 width;
881 };
882 typedef void (*menu_choice_cb)(struct menu *, u_int, key_code, void *);
883 
884 /*
885  * Window mode. Windows can be in several modes and this is used to call the
886  * right function to handle input and output.
887  */
888 struct window_mode_entry;
889 struct window_mode {
890 	const char	*name;
891 	const char	*default_format;
892 
893 	struct screen	*(*init)(struct window_mode_entry *,
894 			     struct cmd_find_state *, struct args *);
895 	void		 (*free)(struct window_mode_entry *);
896 	void		 (*resize)(struct window_mode_entry *, u_int, u_int);
897 	void		 (*update)(struct window_mode_entry *);
898 	void		 (*key)(struct window_mode_entry *, struct client *,
899 			     struct session *, struct winlink *, key_code,
900 			     struct mouse_event *);
901 
902 	const char	*(*key_table)(struct window_mode_entry *);
903 	void		 (*command)(struct window_mode_entry *, struct client *,
904 			     struct session *, struct winlink *, struct args *,
905 			     struct mouse_event *);
906 	void		 (*formats)(struct window_mode_entry *,
907 			     struct format_tree *);
908 };
909 
910 /* Active window mode. */
911 struct window_mode_entry {
912 	struct window_pane		*wp;
913 	struct window_pane		*swp;
914 
915 	const struct window_mode	*mode;
916 	void				*data;
917 
918 	struct screen			*screen;
919 	u_int				 prefix;
920 
921 	TAILQ_ENTRY (window_mode_entry)	 entry;
922 };
923 
924 /* Offsets into pane buffer. */
925 struct window_pane_offset {
926 	size_t	used;
927 };
928 
929 /* Child window structure. */
930 struct window_pane {
931 	u_int		 id;
932 	u_int		 active_point;
933 
934 	struct window	*window;
935 	struct options	*options;
936 
937 	struct layout_cell *layout_cell;
938 	struct layout_cell *saved_layout_cell;
939 
940 	u_int		 sx;
941 	u_int		 sy;
942 
943 	u_int		 xoff;
944 	u_int		 yoff;
945 
946 	int		 fg;
947 	int		 bg;
948 
949 	int		 flags;
950 #define PANE_REDRAW 0x1
951 #define PANE_DROP 0x2
952 #define PANE_FOCUSED 0x4
953 #define PANE_RESIZE 0x8
954 #define PANE_RESIZEFORCE 0x10
955 #define PANE_FOCUSPUSH 0x20
956 #define PANE_INPUTOFF 0x40
957 #define PANE_CHANGED 0x80
958 #define PANE_EXITED 0x100
959 #define PANE_STATUSREADY 0x200
960 #define PANE_STATUSDRAWN 0x400
961 #define PANE_EMPTY 0x800
962 #define PANE_STYLECHANGED 0x1000
963 #define PANE_RESIZENOW 0x2000
964 
965 	int		 argc;
966 	char	       **argv;
967 	char		*shell;
968 	char		*cwd;
969 
970 	pid_t		 pid;
971 	char		 tty[TTY_NAME_MAX];
972 	int		 status;
973 
974 	int		 fd;
975 	struct bufferevent *event;
976 
977 	struct window_pane_offset offset;
978 	size_t		 base_offset;
979 
980 	struct event	 resize_timer;
981 	struct event	 force_timer;
982 
983 	struct input_ctx *ictx;
984 
985 	struct grid_cell cached_gc;
986 	struct grid_cell cached_active_gc;
987 	int		*palette;
988 
989 	int		 pipe_fd;
990 	struct bufferevent *pipe_event;
991 	struct window_pane_offset pipe_offset;
992 
993 	struct screen	*screen;
994 	struct screen	 base;
995 
996 	struct screen	 status_screen;
997 	size_t		 status_size;
998 
999 	TAILQ_HEAD (, window_mode_entry) modes;
1000 
1001 	char		*searchstr;
1002 	int		 searchregex;
1003 
1004 	size_t		 written;
1005 	size_t		 skipped;
1006 
1007 	int		 border_gc_set;
1008 	struct grid_cell border_gc;
1009 
1010 	TAILQ_ENTRY(window_pane) entry;
1011 	RB_ENTRY(window_pane) tree_entry;
1012 };
1013 TAILQ_HEAD(window_panes, window_pane);
1014 RB_HEAD(window_pane_tree, window_pane);
1015 
1016 /* Window structure. */
1017 struct window {
1018 	u_int		 id;
1019 	void		*latest;
1020 
1021 	char		*name;
1022 	struct event	 name_event;
1023 	struct timeval	 name_time;
1024 
1025 	struct event	 alerts_timer;
1026 	struct event	 offset_timer;
1027 
1028 	struct timeval	 activity_time;
1029 
1030 	struct window_pane *active;
1031 	struct window_pane *last;
1032 	struct window_panes panes;
1033 
1034 	int		 lastlayout;
1035 	struct layout_cell *layout_root;
1036 	struct layout_cell *saved_layout_root;
1037 	char		*old_layout;
1038 
1039 	u_int		 sx;
1040 	u_int		 sy;
1041 	u_int		 xpixel;
1042 	u_int		 ypixel;
1043 
1044 	u_int		 new_sx;
1045 	u_int		 new_sy;
1046 	u_int		 new_xpixel;
1047 	u_int		 new_ypixel;
1048 
1049 	int		 flags;
1050 #define WINDOW_BELL 0x1
1051 #define WINDOW_ACTIVITY 0x2
1052 #define WINDOW_SILENCE 0x4
1053 #define WINDOW_ZOOMED 0x8
1054 #define WINDOW_WASZOOMED 0x10
1055 #define WINDOW_RESIZE 0x20
1056 #define WINDOW_ALERTFLAGS (WINDOW_BELL|WINDOW_ACTIVITY|WINDOW_SILENCE)
1057 
1058 	int		 alerts_queued;
1059 	TAILQ_ENTRY(window) alerts_entry;
1060 
1061 	struct options	*options;
1062 
1063 	u_int		 references;
1064 	TAILQ_HEAD(, winlink) winlinks;
1065 
1066 	RB_ENTRY(window) entry;
1067 };
1068 RB_HEAD(windows, window);
1069 
1070 /* Entry on local window list. */
1071 struct winlink {
1072 	int		 idx;
1073 	struct session	*session;
1074 	struct window	*window;
1075 
1076 	int		 flags;
1077 #define WINLINK_BELL 0x1
1078 #define WINLINK_ACTIVITY 0x2
1079 #define WINLINK_SILENCE 0x4
1080 #define WINLINK_ALERTFLAGS (WINLINK_BELL|WINLINK_ACTIVITY|WINLINK_SILENCE)
1081 
1082 	RB_ENTRY(winlink) entry;
1083 	TAILQ_ENTRY(winlink) wentry;
1084 	TAILQ_ENTRY(winlink) sentry;
1085 };
1086 RB_HEAD(winlinks, winlink);
1087 TAILQ_HEAD(winlink_stack, winlink);
1088 
1089 /* Window size option. */
1090 #define WINDOW_SIZE_LARGEST 0
1091 #define WINDOW_SIZE_SMALLEST 1
1092 #define WINDOW_SIZE_MANUAL 2
1093 #define WINDOW_SIZE_LATEST 3
1094 
1095 /* Pane border status option. */
1096 #define PANE_STATUS_OFF 0
1097 #define PANE_STATUS_TOP 1
1098 #define PANE_STATUS_BOTTOM 2
1099 
1100 /* Pane border lines option. */
1101 #define PANE_LINES_SINGLE 0
1102 #define PANE_LINES_DOUBLE 1
1103 #define PANE_LINES_HEAVY 2
1104 #define PANE_LINES_SIMPLE 3
1105 #define PANE_LINES_NUMBER 4
1106 
1107 /* Layout direction. */
1108 enum layout_type {
1109 	LAYOUT_LEFTRIGHT,
1110 	LAYOUT_TOPBOTTOM,
1111 	LAYOUT_WINDOWPANE
1112 };
1113 
1114 /* Layout cells queue. */
1115 TAILQ_HEAD(layout_cells, layout_cell);
1116 
1117 /* Layout cell. */
1118 struct layout_cell {
1119 	enum layout_type type;
1120 
1121 	struct layout_cell *parent;
1122 
1123 	u_int		 sx;
1124 	u_int		 sy;
1125 
1126 	u_int		 xoff;
1127 	u_int		 yoff;
1128 
1129 	struct window_pane *wp;
1130 	struct layout_cells cells;
1131 
1132 	TAILQ_ENTRY(layout_cell) entry;
1133 };
1134 
1135 /* Environment variable. */
1136 struct environ_entry {
1137 	char		*name;
1138 	char		*value;
1139 
1140 	int		 flags;
1141 #define ENVIRON_HIDDEN 0x1
1142 
1143 	RB_ENTRY(environ_entry) entry;
1144 };
1145 
1146 /* Client session. */
1147 struct session_group {
1148 	const char		*name;
1149 	TAILQ_HEAD(, session)	 sessions;
1150 
1151 	RB_ENTRY(session_group)	 entry;
1152 };
1153 RB_HEAD(session_groups, session_group);
1154 
1155 struct session {
1156 	u_int		 id;
1157 
1158 	char		*name;
1159 	const char	*cwd;
1160 
1161 	struct timeval	 creation_time;
1162 	struct timeval	 last_attached_time;
1163 	struct timeval	 activity_time;
1164 	struct timeval	 last_activity_time;
1165 
1166 	struct event	 lock_timer;
1167 
1168 	struct winlink	*curw;
1169 	struct winlink_stack lastw;
1170 	struct winlinks	 windows;
1171 
1172 	int		 statusat;
1173 	u_int		 statuslines;
1174 
1175 	struct options	*options;
1176 
1177 #define SESSION_PASTING 0x1
1178 #define SESSION_ALERTED 0x2
1179 	int		 flags;
1180 
1181 	u_int		 attached;
1182 
1183 	struct termios	*tio;
1184 
1185 	struct environ	*environ;
1186 
1187 	int		 references;
1188 
1189 	TAILQ_ENTRY(session) gentry;
1190 	RB_ENTRY(session)    entry;
1191 };
1192 RB_HEAD(sessions, session);
1193 
1194 /* Mouse button masks. */
1195 #define MOUSE_MASK_BUTTONS 3
1196 #define MOUSE_MASK_SHIFT 4
1197 #define MOUSE_MASK_META 8
1198 #define MOUSE_MASK_CTRL 16
1199 #define MOUSE_MASK_DRAG 32
1200 #define MOUSE_MASK_WHEEL 64
1201 
1202 /* Mouse wheel states. */
1203 #define MOUSE_WHEEL_UP 0
1204 #define MOUSE_WHEEL_DOWN 1
1205 
1206 /* Mouse helpers. */
1207 #define MOUSE_BUTTONS(b) ((b) & MOUSE_MASK_BUTTONS)
1208 #define MOUSE_WHEEL(b) ((b) & MOUSE_MASK_WHEEL)
1209 #define MOUSE_DRAG(b) ((b) & MOUSE_MASK_DRAG)
1210 #define MOUSE_RELEASE(b) (((b) & MOUSE_MASK_BUTTONS) == 3)
1211 
1212 /* Mouse input. */
1213 struct mouse_event {
1214 	int		valid;
1215 	int		ignore;
1216 
1217 	key_code	key;
1218 
1219 	int		statusat;
1220 	u_int		statuslines;
1221 
1222 	u_int		x;
1223 	u_int		y;
1224 	u_int		b;
1225 
1226 	u_int		lx;
1227 	u_int		ly;
1228 	u_int		lb;
1229 
1230 	u_int		ox;
1231 	u_int		oy;
1232 
1233 	int		s;
1234 	int		w;
1235 	int		wp;
1236 
1237 	u_int		sgr_type;
1238 	u_int		sgr_b;
1239 };
1240 
1241 /* Key event. */
1242 struct key_event {
1243 	key_code		key;
1244 	struct mouse_event	m;
1245 };
1246 
1247 /* TTY information. */
1248 struct tty_key {
1249 	char		 ch;
1250 	key_code	 key;
1251 
1252 	struct tty_key	*left;
1253 	struct tty_key	*right;
1254 
1255 	struct tty_key	*next;
1256 };
1257 
1258 struct tty_code;
1259 struct tty_term {
1260 	char		*name;
1261 	struct tty	*tty;
1262 	int		 features;
1263 
1264 	char		 acs[UCHAR_MAX + 1][2];
1265 
1266 	struct tty_code	*codes;
1267 
1268 #define TERM_256COLOURS 0x1
1269 #define TERM_NOAM 0x2
1270 #define TERM_DECSLRM 0x4
1271 #define TERM_DECFRA 0x8
1272 #define TERM_RGBCOLOURS 0x10
1273 #define TERM_VT100LIKE 0x20
1274 	int		 flags;
1275 
1276 	LIST_ENTRY(tty_term) entry;
1277 };
1278 LIST_HEAD(tty_terms, tty_term);
1279 
1280 struct tty {
1281 	struct client	*client;
1282 	struct event	 start_timer;
1283 
1284 	u_int		 sx;
1285 	u_int		 sy;
1286 	u_int		 xpixel;
1287 	u_int		 ypixel;
1288 
1289 	u_int		 cx;
1290 	u_int		 cy;
1291 	u_int		 cstyle;
1292 	char		*ccolour;
1293 
1294 	int		 oflag;
1295 	u_int		 oox;
1296 	u_int		 ooy;
1297 	u_int		 osx;
1298 	u_int		 osy;
1299 
1300 	int		 mode;
1301 
1302 	u_int		 rlower;
1303 	u_int		 rupper;
1304 
1305 	u_int		 rleft;
1306 	u_int		 rright;
1307 
1308 	struct event	 event_in;
1309 	struct evbuffer	*in;
1310 	struct event	 event_out;
1311 	struct evbuffer	*out;
1312 	struct event	 timer;
1313 	size_t		 discarded;
1314 
1315 	struct termios	 tio;
1316 
1317 	struct grid_cell cell;
1318 	struct grid_cell last_cell;
1319 
1320 #define TTY_NOCURSOR 0x1
1321 #define TTY_FREEZE 0x2
1322 #define TTY_TIMER 0x4
1323 /* 0x8 unused */
1324 #define TTY_STARTED 0x10
1325 #define TTY_OPENED 0x20
1326 /* 0x40 unused */
1327 #define TTY_BLOCK 0x80
1328 #define TTY_HAVEDA 0x100
1329 #define TTY_HAVEXDA 0x200
1330 #define TTY_SYNCING 0x400
1331 	int		 flags;
1332 
1333 	struct tty_term	*term;
1334 
1335 	u_int		 mouse_last_x;
1336 	u_int		 mouse_last_y;
1337 	u_int		 mouse_last_b;
1338 	int		 mouse_drag_flag;
1339 	void		(*mouse_drag_update)(struct client *,
1340 			    struct mouse_event *);
1341 	void		(*mouse_drag_release)(struct client *,
1342 			    struct mouse_event *);
1343 
1344 	struct event	 key_timer;
1345 	struct tty_key	*key_tree;
1346 };
1347 
1348 /* TTY command context. */
1349 typedef void (*tty_ctx_redraw_cb)(const struct tty_ctx *);
1350 typedef int (*tty_ctx_set_client_cb)(struct tty_ctx *, struct client *);
1351 struct tty_ctx {
1352 	struct screen		*s;
1353 
1354 	tty_ctx_redraw_cb	 redraw_cb;
1355 	tty_ctx_set_client_cb	 set_client_cb;
1356 	void			*arg;
1357 
1358 	const struct grid_cell	*cell;
1359 	int			 wrapped;
1360 
1361 	u_int			 num;
1362 	void			*ptr;
1363 
1364 	/*
1365 	 * Cursor and region position before the screen was updated - this is
1366 	 * where the command should be applied; the values in the screen have
1367 	 * already been updated.
1368 	 */
1369 	u_int		 ocx;
1370 	u_int		 ocy;
1371 
1372 	u_int		 orupper;
1373 	u_int		 orlower;
1374 
1375 	/* Target region (usually pane) offset and size. */
1376 	u_int		 xoff;
1377 	u_int		 yoff;
1378 	u_int		 rxoff;
1379 	u_int		 ryoff;
1380 	u_int		 sx;
1381 	u_int		 sy;
1382 
1383 	/* The background colour used for clearing (erasing). */
1384 	u_int		 bg;
1385 
1386 	/* The default colours and palette. */
1387 	struct grid_cell defaults;
1388 	int		*palette;
1389 
1390 	/* Containing region (usually window) offset and size. */
1391 	int		 bigger;
1392 	u_int		 wox;
1393 	u_int		 woy;
1394 	u_int		 wsx;
1395 	u_int		 wsy;
1396 };
1397 
1398 /* Saved message entry. */
1399 struct message_entry {
1400 	char				*msg;
1401 	u_int				 msg_num;
1402 	struct timeval			 msg_time;
1403 
1404 	TAILQ_ENTRY(message_entry)	 entry;
1405 };
1406 TAILQ_HEAD(message_list, message_entry);
1407 
1408 /* Parsed arguments structures. */
1409 struct args_entry;
1410 RB_HEAD(args_tree, args_entry);
1411 struct args {
1412 	struct args_tree	  tree;
1413 	int			  argc;
1414 	char			**argv;
1415 };
1416 
1417 /* Command find structures. */
1418 enum cmd_find_type {
1419 	CMD_FIND_PANE,
1420 	CMD_FIND_WINDOW,
1421 	CMD_FIND_SESSION,
1422 };
1423 struct cmd_find_state {
1424 	int			 flags;
1425 	struct cmd_find_state	*current;
1426 
1427 	struct session		*s;
1428 	struct winlink		*wl;
1429 	struct window		*w;
1430 	struct window_pane	*wp;
1431 	int			 idx;
1432 };
1433 
1434 /* Command find flags. */
1435 #define CMD_FIND_PREFER_UNATTACHED 0x1
1436 #define CMD_FIND_QUIET 0x2
1437 #define CMD_FIND_WINDOW_INDEX 0x4
1438 #define CMD_FIND_DEFAULT_MARKED 0x8
1439 #define CMD_FIND_EXACT_SESSION 0x10
1440 #define CMD_FIND_EXACT_WINDOW 0x20
1441 #define CMD_FIND_CANFAIL 0x40
1442 
1443 /* List of commands. */
1444 struct cmd_list {
1445 	int		 references;
1446 	u_int		 group;
1447 	struct cmds	*list;
1448 };
1449 
1450 /* Command return values. */
1451 enum cmd_retval {
1452 	CMD_RETURN_ERROR = -1,
1453 	CMD_RETURN_NORMAL = 0,
1454 	CMD_RETURN_WAIT,
1455 	CMD_RETURN_STOP
1456 };
1457 
1458 /* Command parse result. */
1459 enum cmd_parse_status {
1460 	CMD_PARSE_EMPTY,
1461 	CMD_PARSE_ERROR,
1462 	CMD_PARSE_SUCCESS
1463 };
1464 struct cmd_parse_result {
1465 	enum cmd_parse_status	 status;
1466 	struct cmd_list		*cmdlist;
1467 	char			*error;
1468 };
1469 struct cmd_parse_input {
1470 	int			 flags;
1471 #define CMD_PARSE_QUIET 0x1
1472 #define CMD_PARSE_PARSEONLY 0x2
1473 #define CMD_PARSE_NOALIAS 0x4
1474 #define CMD_PARSE_VERBOSE 0x8
1475 #define CMD_PARSE_ONEGROUP 0x10
1476 
1477 	const char		*file;
1478 	u_int			 line;
1479 
1480 	struct cmdq_item	*item;
1481 	struct client		*c;
1482 	struct cmd_find_state	 fs;
1483 };
1484 
1485 /* Command queue flags. */
1486 #define CMDQ_STATE_REPEAT 0x1
1487 #define CMDQ_STATE_CONTROL 0x2
1488 #define CMDQ_STATE_NOHOOKS 0x4
1489 
1490 /* Command queue callback. */
1491 typedef enum cmd_retval (*cmdq_cb) (struct cmdq_item *, void *);
1492 
1493 /* Command definition flag. */
1494 struct cmd_entry_flag {
1495 	char			 flag;
1496 	enum cmd_find_type	 type;
1497 	int			 flags;
1498 };
1499 
1500 /* Command definition. */
1501 struct cmd_entry {
1502 	const char		*name;
1503 	const char		*alias;
1504 
1505 	struct {
1506 		const char	*template;
1507 		int		 lower;
1508 		int		 upper;
1509 	} args;
1510 	const char		*usage;
1511 
1512 	struct cmd_entry_flag	 source;
1513 	struct cmd_entry_flag	 target;
1514 
1515 #define CMD_STARTSERVER 0x1
1516 #define CMD_READONLY 0x2
1517 #define CMD_AFTERHOOK 0x4
1518 #define CMD_CLIENT_CFLAG 0x8
1519 #define CMD_CLIENT_TFLAG 0x10
1520 #define CMD_CLIENT_CANFAIL 0x20
1521 	int		 flags;
1522 
1523 	enum cmd_retval	 (*exec)(struct cmd *, struct cmdq_item *);
1524 };
1525 
1526 /* Status line. */
1527 #define STATUS_LINES_LIMIT 5
1528 struct status_line_entry {
1529 	char			*expanded;
1530 	struct style_ranges	 ranges;
1531 };
1532 struct status_line {
1533 	struct event		 timer;
1534 
1535 	struct screen		 screen;
1536 	struct screen		*active;
1537 	int			 references;
1538 
1539 	struct grid_cell	 style;
1540 	struct status_line_entry entries[STATUS_LINES_LIMIT];
1541 };
1542 
1543 /* File in client. */
1544 typedef void (*client_file_cb) (struct client *, const char *, int, int,
1545     struct evbuffer *, void *);
1546 struct client_file {
1547 	struct client			*c;
1548 	int				 references;
1549 	int				 stream;
1550 
1551 	char				*path;
1552 	struct evbuffer			*buffer;
1553 	struct bufferevent		*event;
1554 
1555 	int				 fd;
1556 	int				 error;
1557 	int				 closed;
1558 
1559 	client_file_cb			 cb;
1560 	void				*data;
1561 
1562 	RB_ENTRY(client_file)		 entry;
1563 };
1564 RB_HEAD(client_files, client_file);
1565 
1566 /* Client window. */
1567 struct client_window {
1568 	u_int			 window;
1569 	struct window_pane	*pane;
1570 	RB_ENTRY(client_window)	 entry;
1571 };
1572 RB_HEAD(client_windows, client_window);
1573 
1574 /* Client connection. */
1575 typedef int (*prompt_input_cb)(struct client *, void *, const char *, int);
1576 typedef void (*prompt_free_cb)(void *);
1577 typedef int (*overlay_check_cb)(struct client *, u_int, u_int);
1578 typedef struct screen *(*overlay_mode_cb)(struct client *, u_int *, u_int *);
1579 typedef void (*overlay_draw_cb)(struct client *, struct screen_redraw_ctx *);
1580 typedef int (*overlay_key_cb)(struct client *, struct key_event *);
1581 typedef void (*overlay_free_cb)(struct client *);
1582 struct client {
1583 	const char	*name;
1584 	struct tmuxpeer	*peer;
1585 	struct cmdq_list *queue;
1586 
1587 	struct client_windows windows;
1588 
1589 	struct control_state *control_state;
1590 	u_int		 pause_age;
1591 
1592 	pid_t		 pid;
1593 	int		 fd;
1594 	int		 out_fd;
1595 	struct event	 event;
1596 	int		 retval;
1597 
1598 	struct timeval	 creation_time;
1599 	struct timeval	 activity_time;
1600 
1601 	struct environ	*environ;
1602 	struct format_job_tree	*jobs;
1603 
1604 	char		*title;
1605 	const char	*cwd;
1606 
1607 	char		*term_name;
1608 	int		 term_features;
1609 	char		*term_type;
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 /* 0x1000 unused */
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_styles;
1691 	char		*message_string;
1692 	struct event	 message_timer;
1693 
1694 	char		*prompt_string;
1695 	struct utf8_data *prompt_buffer;
1696 	size_t		 prompt_index;
1697 	prompt_input_cb	 prompt_inputcb;
1698 	prompt_free_cb	 prompt_freecb;
1699 	void		*prompt_data;
1700 	u_int		 prompt_hindex;
1701 	enum { PROMPT_ENTRY, PROMPT_COMMAND } prompt_mode;
1702 	struct utf8_data *prompt_saved;
1703 
1704 #define PROMPT_SINGLE 0x1
1705 #define PROMPT_NUMERIC 0x2
1706 #define PROMPT_INCREMENTAL 0x4
1707 #define PROMPT_NOFORMAT 0x8
1708 #define PROMPT_KEY 0x10
1709 #define PROMPT_WINDOW 0x20
1710 #define PROMPT_TARGET 0x40
1711 	int		 prompt_flags;
1712 
1713 	struct session	*session;
1714 	struct session	*last_session;
1715 
1716 	int		 references;
1717 
1718 	void		*pan_window;
1719 	u_int		 pan_ox;
1720 	u_int		 pan_oy;
1721 
1722 	overlay_check_cb overlay_check;
1723 	overlay_mode_cb	 overlay_mode;
1724 	overlay_draw_cb	 overlay_draw;
1725 	overlay_key_cb	 overlay_key;
1726 	overlay_free_cb	 overlay_free;
1727 	void		*overlay_data;
1728 	struct event	 overlay_timer;
1729 
1730 	struct client_files files;
1731 
1732 	TAILQ_ENTRY(client) entry;
1733 };
1734 TAILQ_HEAD(clients, client);
1735 
1736 /* Control mode subscription type. */
1737 enum control_sub_type {
1738 	CONTROL_SUB_SESSION,
1739 	CONTROL_SUB_PANE,
1740 	CONTROL_SUB_ALL_PANES,
1741 	CONTROL_SUB_WINDOW,
1742 	CONTROL_SUB_ALL_WINDOWS
1743 };
1744 
1745 /* Key binding and key table. */
1746 struct key_binding {
1747 	key_code		 key;
1748 	struct cmd_list		*cmdlist;
1749 	const char		*note;
1750 
1751 	int			 flags;
1752 #define KEY_BINDING_REPEAT 0x1
1753 
1754 	RB_ENTRY(key_binding)	 entry;
1755 };
1756 RB_HEAD(key_bindings, key_binding);
1757 
1758 struct key_table {
1759 	const char		*name;
1760 	struct key_bindings	 key_bindings;
1761 	struct key_bindings	 default_key_bindings;
1762 
1763 	u_int			 references;
1764 
1765 	RB_ENTRY(key_table)	 entry;
1766 };
1767 RB_HEAD(key_tables, key_table);
1768 
1769 /* Option data. */
1770 RB_HEAD(options_array, options_array_item);
1771 union options_value {
1772 	char				 *string;
1773 	long long			  number;
1774 	struct style			  style;
1775 	struct options_array		  array;
1776 	struct cmd_list			 *cmdlist;
1777 };
1778 
1779 /* Option table entries. */
1780 enum options_table_type {
1781 	OPTIONS_TABLE_STRING,
1782 	OPTIONS_TABLE_NUMBER,
1783 	OPTIONS_TABLE_KEY,
1784 	OPTIONS_TABLE_COLOUR,
1785 	OPTIONS_TABLE_FLAG,
1786 	OPTIONS_TABLE_CHOICE,
1787 	OPTIONS_TABLE_COMMAND
1788 };
1789 
1790 #define OPTIONS_TABLE_NONE 0
1791 #define OPTIONS_TABLE_SERVER 0x1
1792 #define OPTIONS_TABLE_SESSION 0x2
1793 #define OPTIONS_TABLE_WINDOW 0x4
1794 #define OPTIONS_TABLE_PANE 0x8
1795 
1796 #define OPTIONS_TABLE_IS_ARRAY 0x1
1797 #define OPTIONS_TABLE_IS_HOOK 0x2
1798 #define OPTIONS_TABLE_IS_STYLE 0x4
1799 
1800 struct options_table_entry {
1801 	const char		 *name;
1802 	const char		 *alternative_name;
1803 	enum options_table_type	  type;
1804 	int			  scope;
1805 	int			  flags;
1806 
1807 	u_int			  minimum;
1808 	u_int			  maximum;
1809 	const char		**choices;
1810 
1811 	const char		 *default_str;
1812 	long long		  default_num;
1813 	const char		**default_arr;
1814 
1815 	const char		 *separator;
1816 	const char		 *pattern;
1817 
1818 	const char		 *text;
1819 	const char		 *unit;
1820 };
1821 
1822 struct options_name_map {
1823 	const char		*from;
1824 	const char		*to;
1825 };
1826 
1827 /* Common command usages. */
1828 #define CMD_TARGET_PANE_USAGE "[-t target-pane]"
1829 #define CMD_TARGET_WINDOW_USAGE "[-t target-window]"
1830 #define CMD_TARGET_SESSION_USAGE "[-t target-session]"
1831 #define CMD_TARGET_CLIENT_USAGE "[-t target-client]"
1832 #define CMD_SRCDST_PANE_USAGE "[-s src-pane] [-t dst-pane]"
1833 #define CMD_SRCDST_WINDOW_USAGE "[-s src-window] [-t dst-window]"
1834 #define CMD_SRCDST_SESSION_USAGE "[-s src-session] [-t dst-session]"
1835 #define CMD_SRCDST_CLIENT_USAGE "[-s src-client] [-t dst-client]"
1836 #define CMD_BUFFER_USAGE "[-b buffer-name]"
1837 
1838 /* Spawn common context. */
1839 struct spawn_context {
1840 	struct cmdq_item	 *item;
1841 
1842 	struct session		 *s;
1843 	struct winlink		 *wl;
1844 	struct client		 *tc;
1845 
1846 	struct window_pane	 *wp0;
1847 	struct layout_cell	 *lc;
1848 
1849 	const char		 *name;
1850 	char			**argv;
1851 	int			  argc;
1852 	struct environ		 *environ;
1853 
1854 	int			  idx;
1855 	const char		 *cwd;
1856 
1857 	int			  flags;
1858 #define SPAWN_KILL 0x1
1859 #define SPAWN_DETACHED 0x2
1860 #define SPAWN_RESPAWN 0x4
1861 #define SPAWN_BEFORE 0x8
1862 #define SPAWN_NONOTIFY 0x10
1863 #define SPAWN_FULLSIZE 0x20
1864 #define SPAWN_EMPTY 0x40
1865 };
1866 
1867 /* Mode tree sort order. */
1868 struct mode_tree_sort_criteria {
1869 	u_int	field;
1870 	int	reversed;
1871 };
1872 
1873 /* tmux.c */
1874 extern struct options	*global_options;
1875 extern struct options	*global_s_options;
1876 extern struct options	*global_w_options;
1877 extern struct environ	*global_environ;
1878 extern struct timeval	 start_time;
1879 extern const char	*socket_path;
1880 extern const char	*shell_command;
1881 extern int		 ptm_fd;
1882 extern const char	*shell_command;
1883 int		 checkshell(const char *);
1884 void		 setblocking(int, int);
1885 uint64_t	 get_timer(void);
1886 const char	*sig2name(int);
1887 const char	*find_cwd(void);
1888 const char	*find_home(void);
1889 const char	*getversion(void);
1890 void		 expand_paths(const char *, char ***, u_int *);
1891 
1892 
1893 /* proc.c */
1894 struct imsg;
1895 int	proc_send(struct tmuxpeer *, enum msgtype, int, const void *, size_t);
1896 struct tmuxproc *proc_start(const char *);
1897 void	proc_loop(struct tmuxproc *, int (*)(void));
1898 void	proc_exit(struct tmuxproc *);
1899 void	proc_set_signals(struct tmuxproc *, void(*)(int));
1900 void	proc_clear_signals(struct tmuxproc *, int);
1901 struct tmuxpeer *proc_add_peer(struct tmuxproc *, int,
1902 	    void (*)(struct imsg *, void *), void *);
1903 void	proc_remove_peer(struct tmuxpeer *);
1904 void	proc_kill_peer(struct tmuxpeer *);
1905 void	proc_toggle_log(struct tmuxproc *);
1906 
1907 /* cfg.c */
1908 extern int cfg_finished;
1909 extern struct client *cfg_client;
1910 void	start_cfg(void);
1911 int	load_cfg(const char *, struct client *, struct cmdq_item *, int,
1912 	    struct cmdq_item **);
1913 int	load_cfg_from_buffer(const void *, size_t, const char *,
1914 	    struct client *, struct cmdq_item *, int, struct cmdq_item **);
1915 void	set_cfg_file(const char *);
1916 void printflike(1, 2) cfg_add_cause(const char *, ...);
1917 void	cfg_print_causes(struct cmdq_item *);
1918 void	cfg_show_causes(struct session *);
1919 
1920 /* paste.c */
1921 struct paste_buffer;
1922 const char	*paste_buffer_name(struct paste_buffer *);
1923 u_int		 paste_buffer_order(struct paste_buffer *);
1924 time_t		 paste_buffer_created(struct paste_buffer *);
1925 const char	*paste_buffer_data(struct paste_buffer *, size_t *);
1926 struct paste_buffer *paste_walk(struct paste_buffer *);
1927 struct paste_buffer *paste_get_top(const char **);
1928 struct paste_buffer *paste_get_name(const char *);
1929 void		 paste_free(struct paste_buffer *);
1930 void		 paste_add(const char *, char *, size_t);
1931 int		 paste_rename(const char *, const char *, char **);
1932 int		 paste_set(char *, size_t, const char *, char **);
1933 void		 paste_replace(struct paste_buffer *, char *, size_t);
1934 char		*paste_make_sample(struct paste_buffer *);
1935 
1936 /* format.c */
1937 #define FORMAT_STATUS 0x1
1938 #define FORMAT_FORCE 0x2
1939 #define FORMAT_NOJOBS 0x4
1940 #define FORMAT_VERBOSE 0x8
1941 #define FORMAT_NONE 0
1942 #define FORMAT_PANE 0x80000000U
1943 #define FORMAT_WINDOW 0x40000000U
1944 struct format_tree;
1945 struct format_modifier;
1946 typedef char *(*format_cb)(struct format_tree *);
1947 const char	*format_skip(const char *, const char *);
1948 int		 format_true(const char *);
1949 struct format_tree *format_create(struct client *, struct cmdq_item *, int,
1950 		     int);
1951 void		 format_free(struct format_tree *);
1952 void		 format_merge(struct format_tree *, struct format_tree *);
1953 struct window_pane *format_get_pane(struct format_tree *);
1954 void printflike(3, 4) format_add(struct format_tree *, const char *,
1955 		     const char *, ...);
1956 void		 format_add_tv(struct format_tree *, const char *,
1957 		     struct timeval *);
1958 void		 format_add_cb(struct format_tree *, const char *, format_cb);
1959 void		 format_each(struct format_tree *, void (*)(const char *,
1960 		     const char *, void *), void *);
1961 char		*format_expand_time(struct format_tree *, const char *);
1962 char		*format_expand(struct format_tree *, const char *);
1963 char		*format_single(struct cmdq_item *, const char *,
1964 		     struct client *, struct session *, struct winlink *,
1965 		     struct window_pane *);
1966 char		*format_single_from_state(struct cmdq_item *, const char *,
1967 		    struct client *, struct cmd_find_state *);
1968 char		*format_single_from_target(struct cmdq_item *, const char *);
1969 struct format_tree *format_create_defaults(struct cmdq_item *, struct client *,
1970 		     struct session *, struct winlink *, struct window_pane *);
1971 struct format_tree *format_create_from_state(struct cmdq_item *,
1972 		     struct client *, struct cmd_find_state *);
1973 struct format_tree *format_create_from_target(struct cmdq_item *);
1974 void		 format_defaults(struct format_tree *, struct client *,
1975 		     struct session *, struct winlink *, struct window_pane *);
1976 void		 format_defaults_window(struct format_tree *, struct window *);
1977 void		 format_defaults_pane(struct format_tree *,
1978 		     struct window_pane *);
1979 void		 format_defaults_paste_buffer(struct format_tree *,
1980 		     struct paste_buffer *);
1981 void		 format_lost_client(struct client *);
1982 char		*format_grid_word(struct grid *, u_int, u_int);
1983 char		*format_grid_line(struct grid *, u_int);
1984 
1985 /* format-draw.c */
1986 void		 format_draw(struct screen_write_ctx *,
1987 		     const struct grid_cell *, u_int, const char *,
1988 		     struct style_ranges *);
1989 u_int		 format_width(const char *);
1990 char		*format_trim_left(const char *, u_int);
1991 char		*format_trim_right(const char *, u_int);
1992 
1993 /* notify.c */
1994 void	notify_hook(struct cmdq_item *, const char *);
1995 void	notify_client(const char *, struct client *);
1996 void	notify_session(const char *, struct session *);
1997 void	notify_winlink(const char *, struct winlink *);
1998 void	notify_session_window(const char *, struct session *, struct window *);
1999 void	notify_window(const char *, struct window *);
2000 void	notify_pane(const char *, struct window_pane *);
2001 
2002 /* options.c */
2003 struct options	*options_create(struct options *);
2004 void		 options_free(struct options *);
2005 struct options	*options_get_parent(struct options *);
2006 void		 options_set_parent(struct options *, struct options *);
2007 struct options_entry *options_first(struct options *);
2008 struct options_entry *options_next(struct options_entry *);
2009 struct options_entry *options_empty(struct options *,
2010 		     const struct options_table_entry *);
2011 struct options_entry *options_default(struct options *,
2012 		     const struct options_table_entry *);
2013 char		*options_default_to_string(const struct options_table_entry *);
2014 const char	*options_name(struct options_entry *);
2015 struct options	*options_owner(struct options_entry *);
2016 const struct options_table_entry *options_table_entry(struct options_entry *);
2017 struct options_entry *options_get_only(struct options *, const char *);
2018 struct options_entry *options_get(struct options *, const char *);
2019 void		 options_array_clear(struct options_entry *);
2020 union options_value *options_array_get(struct options_entry *, u_int);
2021 int		 options_array_set(struct options_entry *, u_int, const char *,
2022 		     int, char **);
2023 int		 options_array_assign(struct options_entry *, const char *,
2024 		     char **);
2025 struct options_array_item *options_array_first(struct options_entry *);
2026 struct options_array_item *options_array_next(struct options_array_item *);
2027 u_int		 options_array_item_index(struct options_array_item *);
2028 union options_value *options_array_item_value(struct options_array_item *);
2029 int		 options_is_array(struct options_entry *);
2030 int		 options_is_string(struct options_entry *);
2031 char		*options_to_string(struct options_entry *, int, int);
2032 char		*options_parse(const char *, int *);
2033 struct options_entry *options_parse_get(struct options *, const char *, int *,
2034 		     int);
2035 char		*options_match(const char *, int *, int *);
2036 struct options_entry *options_match_get(struct options *, const char *, int *,
2037 		     int, int *);
2038 const char	*options_get_string(struct options *, const char *);
2039 long long	 options_get_number(struct options *, const char *);
2040 struct options_entry * printflike(4, 5) options_set_string(struct options *,
2041 		     const char *, int, const char *, ...);
2042 struct options_entry *options_set_number(struct options *, const char *,
2043 		     long long);
2044 int		 options_scope_from_name(struct args *, int,
2045 		     const char *, struct cmd_find_state *, struct options **,
2046 		     char **);
2047 int		 options_scope_from_flags(struct args *, int,
2048 		     struct cmd_find_state *, struct options **, char **);
2049 struct style	*options_string_to_style(struct options *, const char *,
2050 		     struct format_tree *);
2051 int		 options_from_string(struct options *,
2052 		     const struct options_table_entry *, const char *,
2053 		     const char *, int, char **);
2054 void		 options_push_changes(const char *);
2055 int		 options_remove_or_default(struct options_entry *, int,
2056 		     char **);
2057 
2058 /* options-table.c */
2059 extern const struct options_table_entry	options_table[];
2060 extern const struct options_name_map	options_other_names[];
2061 
2062 /* job.c */
2063 typedef void (*job_update_cb) (struct job *);
2064 typedef void (*job_complete_cb) (struct job *);
2065 typedef void (*job_free_cb) (void *);
2066 #define JOB_NOWAIT 0x1
2067 #define JOB_KEEPWRITE 0x2
2068 #define JOB_PTY 0x4
2069 struct job	*job_run(const char *, struct session *, const char *,
2070 		     job_update_cb, job_complete_cb, job_free_cb, void *, int,
2071 		     int, int);
2072 void		 job_free(struct job *);
2073 void		 job_resize(struct job *, u_int, u_int);
2074 void		 job_check_died(pid_t, int);
2075 int		 job_get_status(struct job *);
2076 void		*job_get_data(struct job *);
2077 struct bufferevent *job_get_event(struct job *);
2078 void		 job_kill_all(void);
2079 int		 job_still_running(void);
2080 void		 job_print_summary(struct cmdq_item *, int);
2081 
2082 /* environ.c */
2083 struct environ *environ_create(void);
2084 void	environ_free(struct environ *);
2085 struct environ_entry *environ_first(struct environ *);
2086 struct environ_entry *environ_next(struct environ_entry *);
2087 void	environ_copy(struct environ *, struct environ *);
2088 struct environ_entry *environ_find(struct environ *, const char *);
2089 void printflike(4, 5) environ_set(struct environ *, const char *, int,
2090 	    const char *, ...);
2091 void	environ_clear(struct environ *, const char *);
2092 void	environ_put(struct environ *, const char *, int);
2093 void	environ_unset(struct environ *, const char *);
2094 void	environ_update(struct options *, struct environ *, struct environ *);
2095 void	environ_push(struct environ *);
2096 void printflike(2, 3) environ_log(struct environ *, const char *, ...);
2097 struct environ *environ_for_session(struct session *, int);
2098 
2099 /* tty.c */
2100 void	tty_create_log(void);
2101 int	tty_window_bigger(struct tty *);
2102 int	tty_window_offset(struct tty *, u_int *, u_int *, u_int *, u_int *);
2103 void	tty_update_window_offset(struct window *);
2104 void	tty_update_client_offset(struct client *);
2105 void	tty_raw(struct tty *, const char *);
2106 void	tty_attributes(struct tty *, const struct grid_cell *,
2107 	    const struct grid_cell *, int *);
2108 void	tty_reset(struct tty *);
2109 void	tty_region_off(struct tty *);
2110 void	tty_margin_off(struct tty *);
2111 void	tty_cursor(struct tty *, u_int, u_int);
2112 void	tty_putcode(struct tty *, enum tty_code_code);
2113 void	tty_putcode1(struct tty *, enum tty_code_code, int);
2114 void	tty_putcode2(struct tty *, enum tty_code_code, int, int);
2115 void	tty_putcode3(struct tty *, enum tty_code_code, int, int, int);
2116 void	tty_putcode_ptr1(struct tty *, enum tty_code_code, const void *);
2117 void	tty_putcode_ptr2(struct tty *, enum tty_code_code, const void *,
2118 	    const void *);
2119 void	tty_puts(struct tty *, const char *);
2120 void	tty_putc(struct tty *, u_char);
2121 void	tty_putn(struct tty *, const void *, size_t, u_int);
2122 void	tty_cell(struct tty *, const struct grid_cell *,
2123 	    const struct grid_cell *, int *);
2124 int	tty_init(struct tty *, struct client *);
2125 void	tty_resize(struct tty *);
2126 void	tty_set_size(struct tty *, u_int, u_int, u_int, u_int);
2127 void	tty_start_tty(struct tty *);
2128 void	tty_send_requests(struct tty *);
2129 void	tty_stop_tty(struct tty *);
2130 void	tty_set_title(struct tty *, const char *);
2131 void	tty_update_mode(struct tty *, int, struct screen *);
2132 void	tty_draw_line(struct tty *, struct screen *, u_int, u_int, u_int,
2133 	    u_int, u_int, const struct grid_cell *, int *);
2134 void	tty_sync_start(struct tty *);
2135 void	tty_sync_end(struct tty *);
2136 int	tty_open(struct tty *, char **);
2137 void	tty_close(struct tty *);
2138 void	tty_free(struct tty *);
2139 void	tty_update_features(struct tty *);
2140 void	tty_set_selection(struct tty *, const char *, size_t);
2141 void	tty_write(void (*)(struct tty *, const struct tty_ctx *),
2142 	    struct tty_ctx *);
2143 void	tty_cmd_alignmenttest(struct tty *, const struct tty_ctx *);
2144 void	tty_cmd_cell(struct tty *, const struct tty_ctx *);
2145 void	tty_cmd_cells(struct tty *, const struct tty_ctx *);
2146 void	tty_cmd_clearendofline(struct tty *, const struct tty_ctx *);
2147 void	tty_cmd_clearendofscreen(struct tty *, const struct tty_ctx *);
2148 void	tty_cmd_clearline(struct tty *, const struct tty_ctx *);
2149 void	tty_cmd_clearscreen(struct tty *, const struct tty_ctx *);
2150 void	tty_cmd_clearstartofline(struct tty *, const struct tty_ctx *);
2151 void	tty_cmd_clearstartofscreen(struct tty *, const struct tty_ctx *);
2152 void	tty_cmd_deletecharacter(struct tty *, const struct tty_ctx *);
2153 void	tty_cmd_clearcharacter(struct tty *, const struct tty_ctx *);
2154 void	tty_cmd_deleteline(struct tty *, const struct tty_ctx *);
2155 void	tty_cmd_erasecharacter(struct tty *, const struct tty_ctx *);
2156 void	tty_cmd_insertcharacter(struct tty *, const struct tty_ctx *);
2157 void	tty_cmd_insertline(struct tty *, const struct tty_ctx *);
2158 void	tty_cmd_linefeed(struct tty *, const struct tty_ctx *);
2159 void	tty_cmd_scrollup(struct tty *, const struct tty_ctx *);
2160 void	tty_cmd_scrolldown(struct tty *, const struct tty_ctx *);
2161 void	tty_cmd_reverseindex(struct tty *, const struct tty_ctx *);
2162 void	tty_cmd_setselection(struct tty *, const struct tty_ctx *);
2163 void	tty_cmd_rawstring(struct tty *, const struct tty_ctx *);
2164 void	tty_cmd_syncstart(struct tty *, const struct tty_ctx *);
2165 void	tty_default_colours(struct grid_cell *, struct window_pane *);
2166 
2167 /* tty-term.c */
2168 extern struct tty_terms tty_terms;
2169 u_int		 tty_term_ncodes(void);
2170 void		 tty_term_apply(struct tty_term *, const char *, int);
2171 void		 tty_term_apply_overrides(struct tty_term *);
2172 struct tty_term *tty_term_create(struct tty *, char *, int *, int, char **);
2173 void		 tty_term_free(struct tty_term *);
2174 int		 tty_term_has(struct tty_term *, enum tty_code_code);
2175 const char	*tty_term_string(struct tty_term *, enum tty_code_code);
2176 const char	*tty_term_string1(struct tty_term *, enum tty_code_code, int);
2177 const char	*tty_term_string2(struct tty_term *, enum tty_code_code, int,
2178 		     int);
2179 const char	*tty_term_string3(struct tty_term *, enum tty_code_code, int,
2180 		     int, int);
2181 const char	*tty_term_ptr1(struct tty_term *, enum tty_code_code,
2182 		     const void *);
2183 const char	*tty_term_ptr2(struct tty_term *, enum tty_code_code,
2184 		     const void *, const void *);
2185 int		 tty_term_number(struct tty_term *, enum tty_code_code);
2186 int		 tty_term_flag(struct tty_term *, enum tty_code_code);
2187 const char	*tty_term_describe(struct tty_term *, enum tty_code_code);
2188 
2189 /* tty-features.c */
2190 void		 tty_add_features(int *, const char *, const char *);
2191 const char	*tty_get_features(int);
2192 int		 tty_apply_features(struct tty_term *, int);
2193 void		 tty_default_features(int *, const char *, u_int);
2194 
2195 /* tty-acs.c */
2196 int		 tty_acs_needed(struct tty *);
2197 const char	*tty_acs_get(struct tty *, u_char);
2198 int		 tty_acs_reverse_get(struct tty *, const char *, size_t);
2199 
2200 /* tty-keys.c */
2201 void		tty_keys_build(struct tty *);
2202 void		tty_keys_free(struct tty *);
2203 int		tty_keys_next(struct tty *);
2204 
2205 /* arguments.c */
2206 void		 args_set(struct args *, u_char, const char *);
2207 struct args	*args_parse(const char *, int, char **);
2208 void		 args_free(struct args *);
2209 char		*args_print(struct args *);
2210 char		*args_escape(const char *);
2211 int		 args_has(struct args *, u_char);
2212 const char	*args_get(struct args *, u_char);
2213 u_char		 args_first(struct args *, struct args_entry **);
2214 u_char		 args_next(struct args_entry **);
2215 const char	*args_first_value(struct args *, u_char, struct args_value **);
2216 const char	*args_next_value(struct args_value **);
2217 long long	 args_strtonum(struct args *, u_char, long long, long long,
2218 		     char **);
2219 long long	 args_percentage(struct args *, u_char, long long,
2220 		     long long, long long, char **);
2221 long long	 args_string_percentage(const char *, long long, long long,
2222 		     long long, char **);
2223 
2224 /* cmd-find.c */
2225 int		 cmd_find_target(struct cmd_find_state *, struct cmdq_item *,
2226 		     const char *, enum cmd_find_type, int);
2227 struct client	*cmd_find_best_client(struct session *);
2228 struct client	*cmd_find_client(struct cmdq_item *, const char *, int);
2229 void		 cmd_find_clear_state(struct cmd_find_state *, int);
2230 int		 cmd_find_empty_state(struct cmd_find_state *);
2231 int		 cmd_find_valid_state(struct cmd_find_state *);
2232 void		 cmd_find_copy_state(struct cmd_find_state *,
2233 		     struct cmd_find_state *);
2234 void		 cmd_find_from_session(struct cmd_find_state *,
2235 		     struct session *, int);
2236 void		 cmd_find_from_winlink(struct cmd_find_state *,
2237 		     struct winlink *, int);
2238 int		 cmd_find_from_session_window(struct cmd_find_state *,
2239 		     struct session *, struct window *, int);
2240 int		 cmd_find_from_window(struct cmd_find_state *, struct window *,
2241 		     int);
2242 void		 cmd_find_from_winlink_pane(struct cmd_find_state *,
2243 		     struct winlink *, struct window_pane *, int);
2244 int		 cmd_find_from_pane(struct cmd_find_state *,
2245 		     struct window_pane *, int);
2246 int		 cmd_find_from_client(struct cmd_find_state *, struct client *,
2247 		     int);
2248 int		 cmd_find_from_mouse(struct cmd_find_state *,
2249 		     struct mouse_event *, int);
2250 int		 cmd_find_from_nothing(struct cmd_find_state *, int);
2251 
2252 /* cmd.c */
2253 extern const struct cmd_entry *cmd_table[];
2254 void printflike(3, 4) cmd_log_argv(int, char **, const char *, ...);
2255 void		 cmd_prepend_argv(int *, char ***, char *);
2256 void		 cmd_append_argv(int *, char ***, char *);
2257 int		 cmd_pack_argv(int, char **, char *, size_t);
2258 int		 cmd_unpack_argv(char *, size_t, int, char ***);
2259 char	       **cmd_copy_argv(int, char **);
2260 void		 cmd_free_argv(int, char **);
2261 char		*cmd_stringify_argv(int, char **);
2262 char		*cmd_get_alias(const char *);
2263 const struct cmd_entry *cmd_get_entry(struct cmd *);
2264 struct args	*cmd_get_args(struct cmd *);
2265 u_int		 cmd_get_group(struct cmd *);
2266 void		 cmd_get_source(struct cmd *, const char **, u_int *);
2267 struct cmd	*cmd_parse(int, char **, const char *, u_int, char **);
2268 void		 cmd_free(struct cmd *);
2269 char		*cmd_print(struct cmd *);
2270 struct cmd_list	*cmd_list_new(void);
2271 void		 cmd_list_append(struct cmd_list *, struct cmd *);
2272 void		 cmd_list_move(struct cmd_list *, struct cmd_list *);
2273 void		 cmd_list_free(struct cmd_list *);
2274 char		*cmd_list_print(struct cmd_list *, int);
2275 struct cmd	*cmd_list_first(struct cmd_list *);
2276 struct cmd	*cmd_list_next(struct cmd *);
2277 int		 cmd_list_all_have(struct cmd_list *, int);
2278 int		 cmd_list_any_have(struct cmd_list *, int);
2279 int		 cmd_mouse_at(struct window_pane *, struct mouse_event *,
2280 		     u_int *, u_int *, int);
2281 struct winlink	*cmd_mouse_window(struct mouse_event *, struct session **);
2282 struct window_pane *cmd_mouse_pane(struct mouse_event *, struct session **,
2283 		     struct winlink **);
2284 char		*cmd_template_replace(const char *, const char *, int);
2285 
2286 /* cmd-attach-session.c */
2287 enum cmd_retval	 cmd_attach_session(struct cmdq_item *, const char *, int, int,
2288 		     int, const char *, int, const char *);
2289 
2290 /* cmd-parse.c */
2291 void		 cmd_parse_empty(struct cmd_parse_input *);
2292 struct cmd_parse_result *cmd_parse_from_file(FILE *, struct cmd_parse_input *);
2293 struct cmd_parse_result *cmd_parse_from_string(const char *,
2294 		     struct cmd_parse_input *);
2295 enum cmd_parse_status cmd_parse_and_insert(const char *,
2296 		     struct cmd_parse_input *, struct cmdq_item *,
2297 		     struct cmdq_state *, char **);
2298 enum cmd_parse_status cmd_parse_and_append(const char *,
2299 		     struct cmd_parse_input *, struct client *,
2300 		     struct cmdq_state *, char **);
2301 struct cmd_parse_result *cmd_parse_from_buffer(const void *, size_t,
2302 		     struct cmd_parse_input *);
2303 struct cmd_parse_result *cmd_parse_from_arguments(int, char **,
2304 		     struct cmd_parse_input *);
2305 
2306 /* cmd-queue.c */
2307 struct cmdq_state *cmdq_new_state(struct cmd_find_state *, struct key_event *,
2308 		     int);
2309 struct cmdq_state *cmdq_link_state(struct cmdq_state *);
2310 struct cmdq_state *cmdq_copy_state(struct cmdq_state *);
2311 void		  cmdq_free_state(struct cmdq_state *);
2312 void printflike(3, 4) cmdq_add_format(struct cmdq_state *, const char *,
2313 		     const char *, ...);
2314 void		  cmdq_merge_formats(struct cmdq_item *, struct format_tree *);
2315 struct cmdq_list *cmdq_new(void);
2316 void cmdq_free(struct cmdq_list *);
2317 const char	 *cmdq_get_name(struct cmdq_item *);
2318 struct client	 *cmdq_get_client(struct cmdq_item *);
2319 struct client	 *cmdq_get_target_client(struct cmdq_item *);
2320 struct cmdq_state *cmdq_get_state(struct cmdq_item *);
2321 struct cmd_find_state *cmdq_get_target(struct cmdq_item *);
2322 struct cmd_find_state *cmdq_get_source(struct cmdq_item *);
2323 struct key_event *cmdq_get_event(struct cmdq_item *);
2324 struct cmd_find_state *cmdq_get_current(struct cmdq_item *);
2325 int		  cmdq_get_flags(struct cmdq_item *);
2326 struct cmdq_item *cmdq_get_command(struct cmd_list *, struct cmdq_state *);
2327 #define cmdq_get_callback(cb, data) cmdq_get_callback1(#cb, cb, data)
2328 struct cmdq_item *cmdq_get_callback1(const char *, cmdq_cb, void *);
2329 struct cmdq_item *cmdq_get_error(const char *);
2330 struct cmdq_item *cmdq_insert_after(struct cmdq_item *, struct cmdq_item *);
2331 struct cmdq_item *cmdq_append(struct client *, struct cmdq_item *);
2332 void		 cmdq_insert_hook(struct session *, struct cmdq_item *,
2333 		     struct cmd_find_state *, const char *, ...);
2334 void		 cmdq_continue(struct cmdq_item *);
2335 u_int		 cmdq_next(struct client *);
2336 struct cmdq_item *cmdq_running(struct client *);
2337 void		 cmdq_guard(struct cmdq_item *, const char *, int);
2338 void printflike(2, 3) cmdq_print(struct cmdq_item *, const char *, ...);
2339 void printflike(2, 3) cmdq_error(struct cmdq_item *, const char *, ...);
2340 
2341 /* cmd-wait-for.c */
2342 void	cmd_wait_for_flush(void);
2343 
2344 /* client.c */
2345 int	client_main(struct event_base *, int, char **, uint64_t, int);
2346 
2347 /* key-bindings.c */
2348 struct key_table *key_bindings_get_table(const char *, int);
2349 struct key_table *key_bindings_first_table(void);
2350 struct key_table *key_bindings_next_table(struct key_table *);
2351 void	 key_bindings_unref_table(struct key_table *);
2352 struct key_binding *key_bindings_get(struct key_table *, key_code);
2353 struct key_binding *key_bindings_get_default(struct key_table *, key_code);
2354 struct key_binding *key_bindings_first(struct key_table *);
2355 struct key_binding *key_bindings_next(struct key_table *, struct key_binding *);
2356 void	 key_bindings_add(const char *, key_code, const char *, int,
2357 	     struct cmd_list *);
2358 void	 key_bindings_remove(const char *, key_code);
2359 void	 key_bindings_reset(const char *, key_code);
2360 void	 key_bindings_remove_table(const char *);
2361 void	 key_bindings_reset_table(const char *);
2362 void	 key_bindings_init(void);
2363 struct cmdq_item *key_bindings_dispatch(struct key_binding *,
2364 	     struct cmdq_item *, struct client *, struct key_event *,
2365 	     struct cmd_find_state *);
2366 
2367 /* key-string.c */
2368 key_code	 key_string_lookup_string(const char *);
2369 const char	*key_string_lookup_key(key_code, int);
2370 
2371 /* alerts.c */
2372 void	alerts_reset_all(void);
2373 void	alerts_queue(struct window *, int);
2374 void	alerts_check_session(struct session *);
2375 
2376 /* file.c */
2377 int	 file_cmp(struct client_file *, struct client_file *);
2378 RB_PROTOTYPE(client_files, client_file, entry, file_cmp);
2379 struct client_file *file_create(struct client *, int, client_file_cb, void *);
2380 void	 file_free(struct client_file *);
2381 void	 file_fire_done(struct client_file *);
2382 void	 file_fire_read(struct client_file *);
2383 int	 file_can_print(struct client *);
2384 void printflike(2, 3) file_print(struct client *, const char *, ...);
2385 void	 file_vprint(struct client *, const char *, va_list);
2386 void	 file_print_buffer(struct client *, void *, size_t);
2387 void printflike(2, 3) file_error(struct client *, const char *, ...);
2388 void	 file_write(struct client *, const char *, int, const void *, size_t,
2389 	     client_file_cb, void *);
2390 void	 file_read(struct client *, const char *, client_file_cb, void *);
2391 void	 file_push(struct client_file *);
2392 
2393 /* server.c */
2394 extern struct tmuxproc *server_proc;
2395 extern struct clients clients;
2396 extern struct cmd_find_state marked_pane;
2397 extern struct message_list message_log;
2398 void	 server_set_marked(struct session *, struct winlink *,
2399 	     struct window_pane *);
2400 void	 server_clear_marked(void);
2401 int	 server_is_marked(struct session *, struct winlink *,
2402 	     struct window_pane *);
2403 int	 server_check_marked(void);
2404 int	 server_start(struct tmuxproc *, int, struct event_base *, int, char *);
2405 void	 server_update_socket(void);
2406 void	 server_add_accept(int);
2407 void printflike(1, 2) server_add_message(const char *, ...);
2408 
2409 /* server-client.c */
2410 RB_PROTOTYPE(client_windows, client_window, entry, server_client_window_cmp);
2411 u_int	 server_client_how_many(void);
2412 void	 server_client_set_overlay(struct client *, u_int, overlay_check_cb,
2413 	     overlay_mode_cb, overlay_draw_cb, overlay_key_cb,
2414 	     overlay_free_cb, void *);
2415 void	 server_client_clear_overlay(struct client *);
2416 void	 server_client_set_key_table(struct client *, const char *);
2417 const char *server_client_get_key_table(struct client *);
2418 int	 server_client_check_nested(struct client *);
2419 int	 server_client_handle_key(struct client *, struct key_event *);
2420 struct client *server_client_create(int);
2421 int	 server_client_open(struct client *, char **);
2422 void	 server_client_unref(struct client *);
2423 void	 server_client_lost(struct client *);
2424 void	 server_client_suspend(struct client *);
2425 void	 server_client_detach(struct client *, enum msgtype);
2426 void	 server_client_exec(struct client *, const char *);
2427 void	 server_client_loop(void);
2428 void	 server_client_push_stdout(struct client *);
2429 void	 server_client_push_stderr(struct client *);
2430 const char *server_client_get_cwd(struct client *, struct session *);
2431 void	 server_client_set_flags(struct client *, const char *);
2432 const char *server_client_get_flags(struct client *);
2433 struct window_pane *server_client_get_pane(struct client *);
2434 void	 server_client_set_pane(struct client *, struct window_pane *);
2435 void	 server_client_remove_pane(struct window_pane *);
2436 
2437 /* server-fn.c */
2438 void	 server_redraw_client(struct client *);
2439 void	 server_status_client(struct client *);
2440 void	 server_redraw_session(struct session *);
2441 void	 server_redraw_session_group(struct session *);
2442 void	 server_status_session(struct session *);
2443 void	 server_status_session_group(struct session *);
2444 void	 server_redraw_window(struct window *);
2445 void	 server_redraw_window_borders(struct window *);
2446 void	 server_status_window(struct window *);
2447 void	 server_lock(void);
2448 void	 server_lock_session(struct session *);
2449 void	 server_lock_client(struct client *);
2450 void	 server_kill_pane(struct window_pane *);
2451 void	 server_kill_window(struct window *, int);
2452 void	 server_renumber_session(struct session *);
2453 void	 server_renumber_all(void);
2454 int	 server_link_window(struct session *,
2455 	     struct winlink *, struct session *, int, int, int, char **);
2456 void	 server_unlink_window(struct session *, struct winlink *);
2457 void	 server_destroy_pane(struct window_pane *, int);
2458 void	 server_destroy_session(struct session *);
2459 void	 server_check_unattached(void);
2460 void	 server_unzoom_window(struct window *);
2461 
2462 /* status.c */
2463 void	 status_timer_start(struct client *);
2464 void	 status_timer_start_all(void);
2465 void	 status_update_cache(struct session *);
2466 int	 status_at_line(struct client *);
2467 u_int	 status_line_size(struct client *);
2468 struct style_range *status_get_range(struct client *, u_int, u_int);
2469 void	 status_init(struct client *);
2470 void	 status_free(struct client *);
2471 int	 status_redraw(struct client *);
2472 void status_message_set(struct client *, int, int, const char *, ...);
2473 void	 status_message_clear(struct client *);
2474 int	 status_message_redraw(struct client *);
2475 void	 status_prompt_set(struct client *, struct cmd_find_state *,
2476 	     const char *, const char *, prompt_input_cb, prompt_free_cb,
2477 	     void *, int);
2478 void	 status_prompt_clear(struct client *);
2479 int	 status_prompt_redraw(struct client *);
2480 int	 status_prompt_key(struct client *, key_code);
2481 void	 status_prompt_update(struct client *, const char *, const char *);
2482 void	 status_prompt_load_history(void);
2483 void	 status_prompt_save_history(void);
2484 
2485 /* resize.c */
2486 void	 resize_window(struct window *, u_int, u_int, int, int);
2487 void	 default_window_size(struct client *, struct session *, struct window *,
2488 	     u_int *, u_int *, u_int *, u_int *, int);
2489 void	 recalculate_size(struct window *, int);
2490 void	 recalculate_sizes(void);
2491 void	 recalculate_sizes_now(int);
2492 
2493 /* input.c */
2494 struct input_ctx *input_init(struct window_pane *, struct bufferevent *);
2495 void	 input_free(struct input_ctx *);
2496 void	 input_reset(struct input_ctx *, int);
2497 struct evbuffer *input_pending(struct input_ctx *);
2498 void	 input_parse_pane(struct window_pane *);
2499 void	 input_parse_buffer(struct window_pane *, u_char *, size_t);
2500 void	 input_parse_screen(struct input_ctx *, struct screen *,
2501 	     screen_write_init_ctx_cb, void *, u_char *, size_t);
2502 
2503 /* input-key.c */
2504 void	 input_key_build(void);
2505 int	 input_key_pane(struct window_pane *, key_code, struct mouse_event *);
2506 int	 input_key(struct screen *, struct bufferevent *, key_code);
2507 int	 input_key_get_mouse(struct screen *, struct mouse_event *, u_int,
2508 	     u_int, const char **, size_t *);
2509 
2510 /* colour.c */
2511 int	 colour_find_rgb(u_char, u_char, u_char);
2512 int	 colour_join_rgb(u_char, u_char, u_char);
2513 void	 colour_split_rgb(int, u_char *, u_char *, u_char *);
2514 const char *colour_tostring(int);
2515 int	 colour_fromstring(const char *s);
2516 int	 colour_256toRGB(int);
2517 int	 colour_256to16(int);
2518 
2519 /* attributes.c */
2520 const char *attributes_tostring(int);
2521 int	 attributes_fromstring(const char *);
2522 
2523 /* grid.c */
2524 extern const struct grid_cell grid_default_cell;
2525 void	 grid_empty_line(struct grid *, u_int, u_int);
2526 int	 grid_cells_equal(const struct grid_cell *, const struct grid_cell *);
2527 int	 grid_cells_look_equal(const struct grid_cell *,
2528 	     const struct grid_cell *);
2529 struct grid *grid_create(u_int, u_int, u_int);
2530 void	 grid_destroy(struct grid *);
2531 int	 grid_compare(struct grid *, struct grid *);
2532 void	 grid_collect_history(struct grid *);
2533 void	 grid_remove_history(struct grid *, u_int );
2534 void	 grid_scroll_history(struct grid *, u_int);
2535 void	 grid_scroll_history_region(struct grid *, u_int, u_int, u_int);
2536 void	 grid_clear_history(struct grid *);
2537 const struct grid_line *grid_peek_line(struct grid *, u_int);
2538 void	 grid_get_cell(struct grid *, u_int, u_int, struct grid_cell *);
2539 void	 grid_set_cell(struct grid *, u_int, u_int, const struct grid_cell *);
2540 void	 grid_set_padding(struct grid *, u_int, u_int);
2541 void	 grid_set_cells(struct grid *, u_int, u_int, const struct grid_cell *,
2542 	     const char *, size_t);
2543 struct grid_line *grid_get_line(struct grid *, u_int);
2544 void	 grid_adjust_lines(struct grid *, u_int);
2545 void	 grid_clear(struct grid *, u_int, u_int, u_int, u_int, u_int);
2546 void	 grid_clear_lines(struct grid *, u_int, u_int, u_int);
2547 void	 grid_move_lines(struct grid *, u_int, u_int, u_int, u_int);
2548 void	 grid_move_cells(struct grid *, u_int, u_int, u_int, u_int, u_int);
2549 char	*grid_string_cells(struct grid *, u_int, u_int, u_int,
2550 	     struct grid_cell **, int, int, int);
2551 void	 grid_duplicate_lines(struct grid *, u_int, struct grid *, u_int,
2552 	     u_int);
2553 void	 grid_reflow(struct grid *, u_int);
2554 void	 grid_wrap_position(struct grid *, u_int, u_int, u_int *, u_int *);
2555 void	 grid_unwrap_position(struct grid *, u_int *, u_int *, u_int, u_int);
2556 u_int	 grid_line_length(struct grid *, u_int);
2557 
2558 /* grid-reader.c */
2559 void	 grid_reader_start(struct grid_reader *, struct grid *, u_int, u_int);
2560 void	 grid_reader_get_cursor(struct grid_reader *, u_int *, u_int *);
2561 u_int	 grid_reader_line_length(struct grid_reader *);
2562 int	 grid_reader_in_set(struct grid_reader *, const char *);
2563 void	 grid_reader_cursor_right(struct grid_reader *, int, int);
2564 void	 grid_reader_cursor_left(struct grid_reader *);
2565 void	 grid_reader_cursor_down(struct grid_reader *);
2566 void	 grid_reader_cursor_up(struct grid_reader *);
2567 void	 grid_reader_cursor_start_of_line(struct grid_reader *, int);
2568 void	 grid_reader_cursor_end_of_line(struct grid_reader *, int, int);
2569 void	 grid_reader_cursor_next_word(struct grid_reader *, const char *);
2570 void	 grid_reader_cursor_next_word_end(struct grid_reader *, const char *);
2571 void	 grid_reader_cursor_previous_word(struct grid_reader *, const char *,
2572 	     int);
2573 
2574 /* grid-view.c */
2575 void	 grid_view_get_cell(struct grid *, u_int, u_int, struct grid_cell *);
2576 void	 grid_view_set_cell(struct grid *, u_int, u_int,
2577 	     const struct grid_cell *);
2578 void	 grid_view_set_padding(struct grid *, u_int, u_int);
2579 void	 grid_view_set_cells(struct grid *, u_int, u_int,
2580 	     const struct grid_cell *, const char *, size_t);
2581 void	 grid_view_clear_history(struct grid *, u_int);
2582 void	 grid_view_clear(struct grid *, u_int, u_int, u_int, u_int, u_int);
2583 void	 grid_view_scroll_region_up(struct grid *, u_int, u_int, u_int);
2584 void	 grid_view_scroll_region_down(struct grid *, u_int, u_int, u_int);
2585 void	 grid_view_insert_lines(struct grid *, u_int, u_int, u_int);
2586 void	 grid_view_insert_lines_region(struct grid *, u_int, u_int, u_int,
2587 	     u_int);
2588 void	 grid_view_delete_lines(struct grid *, u_int, u_int, u_int);
2589 void	 grid_view_delete_lines_region(struct grid *, u_int, u_int, u_int,
2590 	     u_int);
2591 void	 grid_view_insert_cells(struct grid *, u_int, u_int, u_int, u_int);
2592 void	 grid_view_delete_cells(struct grid *, u_int, u_int, u_int, u_int);
2593 char	*grid_view_string_cells(struct grid *, u_int, u_int, u_int);
2594 
2595 /* screen-write.c */
2596 void	 screen_write_make_list(struct screen *);
2597 void	 screen_write_free_list(struct screen *);
2598 void	 screen_write_start_pane(struct screen_write_ctx *,
2599 	     struct window_pane *, struct screen *);
2600 void	 screen_write_start(struct screen_write_ctx *, struct screen *);
2601 void	 screen_write_start_callback(struct screen_write_ctx *, struct screen *,
2602 	     screen_write_init_ctx_cb, void *);
2603 void	 screen_write_stop(struct screen_write_ctx *);
2604 void	 screen_write_reset(struct screen_write_ctx *);
2605 size_t printflike(1, 2) screen_write_strlen(const char *, ...);
2606 int printflike(7, 8) screen_write_text(struct screen_write_ctx *, u_int, u_int,
2607 	     u_int, int, const struct grid_cell *, const char *, ...);
2608 void printflike(3, 4) screen_write_puts(struct screen_write_ctx *,
2609 	     const struct grid_cell *, const char *, ...);
2610 void printflike(4, 5) screen_write_nputs(struct screen_write_ctx *,
2611 	     ssize_t, const struct grid_cell *, const char *, ...);
2612 void	 screen_write_vnputs(struct screen_write_ctx *, ssize_t,
2613 	     const struct grid_cell *, const char *, va_list);
2614 void	 screen_write_putc(struct screen_write_ctx *, const struct grid_cell *,
2615 	     u_char);
2616 void	 screen_write_fast_copy(struct screen_write_ctx *, struct screen *,
2617 	     u_int, u_int, u_int, u_int);
2618 void	 screen_write_hline(struct screen_write_ctx *, u_int, int, int);
2619 void	 screen_write_vline(struct screen_write_ctx *, u_int, int, int);
2620 void	 screen_write_menu(struct screen_write_ctx *, struct menu *, int,
2621 	     const struct grid_cell *);
2622 void	 screen_write_box(struct screen_write_ctx *, u_int, u_int);
2623 void	 screen_write_preview(struct screen_write_ctx *, struct screen *, u_int,
2624 	     u_int);
2625 void	 screen_write_backspace(struct screen_write_ctx *);
2626 void	 screen_write_mode_set(struct screen_write_ctx *, int);
2627 void	 screen_write_mode_clear(struct screen_write_ctx *, int);
2628 void	 screen_write_cursorup(struct screen_write_ctx *, u_int);
2629 void	 screen_write_cursordown(struct screen_write_ctx *, u_int);
2630 void	 screen_write_cursorright(struct screen_write_ctx *, u_int);
2631 void	 screen_write_cursorleft(struct screen_write_ctx *, u_int);
2632 void	 screen_write_alignmenttest(struct screen_write_ctx *);
2633 void	 screen_write_insertcharacter(struct screen_write_ctx *, u_int, u_int);
2634 void	 screen_write_deletecharacter(struct screen_write_ctx *, u_int, u_int);
2635 void	 screen_write_clearcharacter(struct screen_write_ctx *, u_int, u_int);
2636 void	 screen_write_insertline(struct screen_write_ctx *, u_int, u_int);
2637 void	 screen_write_deleteline(struct screen_write_ctx *, u_int, u_int);
2638 void	 screen_write_clearline(struct screen_write_ctx *, u_int);
2639 void	 screen_write_clearendofline(struct screen_write_ctx *, u_int);
2640 void	 screen_write_clearstartofline(struct screen_write_ctx *, u_int);
2641 void	 screen_write_cursormove(struct screen_write_ctx *, int, int, int);
2642 void	 screen_write_reverseindex(struct screen_write_ctx *, u_int);
2643 void	 screen_write_scrollregion(struct screen_write_ctx *, u_int, u_int);
2644 void	 screen_write_linefeed(struct screen_write_ctx *, int, u_int);
2645 void	 screen_write_scrollup(struct screen_write_ctx *, u_int, u_int);
2646 void	 screen_write_scrolldown(struct screen_write_ctx *, u_int, u_int);
2647 void	 screen_write_carriagereturn(struct screen_write_ctx *);
2648 void	 screen_write_clearendofscreen(struct screen_write_ctx *, u_int);
2649 void	 screen_write_clearstartofscreen(struct screen_write_ctx *, u_int);
2650 void	 screen_write_clearscreen(struct screen_write_ctx *, u_int);
2651 void	 screen_write_clearhistory(struct screen_write_ctx *);
2652 void	 screen_write_collect_end(struct screen_write_ctx *);
2653 void	 screen_write_collect_add(struct screen_write_ctx *,
2654 	     const struct grid_cell *);
2655 void	 screen_write_cell(struct screen_write_ctx *, const struct grid_cell *);
2656 void	 screen_write_setselection(struct screen_write_ctx *, u_char *, u_int);
2657 void	 screen_write_rawstring(struct screen_write_ctx *, u_char *, u_int);
2658 void	 screen_write_alternateon(struct screen_write_ctx *,
2659 	     struct grid_cell *, int);
2660 void	 screen_write_alternateoff(struct screen_write_ctx *,
2661 	     struct grid_cell *, int);
2662 
2663 /* screen-redraw.c */
2664 void	 screen_redraw_screen(struct client *);
2665 void	 screen_redraw_pane(struct client *, struct window_pane *);
2666 
2667 /* screen.c */
2668 void	 screen_init(struct screen *, u_int, u_int, u_int);
2669 void	 screen_reinit(struct screen *);
2670 void	 screen_free(struct screen *);
2671 void	 screen_reset_tabs(struct screen *);
2672 void	 screen_set_cursor_style(struct screen *, u_int);
2673 void	 screen_set_cursor_colour(struct screen *, const char *);
2674 int	 screen_set_title(struct screen *, const char *);
2675 void	 screen_set_path(struct screen *, const char *);
2676 void	 screen_push_title(struct screen *);
2677 void	 screen_pop_title(struct screen *);
2678 void	 screen_resize(struct screen *, u_int, u_int, int);
2679 void	 screen_resize_cursor(struct screen *, u_int, u_int, int, int, int);
2680 void	 screen_set_selection(struct screen *, u_int, u_int, u_int, u_int,
2681 	     u_int, int, struct grid_cell *);
2682 void	 screen_clear_selection(struct screen *);
2683 void	 screen_hide_selection(struct screen *);
2684 int	 screen_check_selection(struct screen *, u_int, u_int);
2685 void	 screen_select_cell(struct screen *, struct grid_cell *,
2686 	     const struct grid_cell *);
2687 void	 screen_alternate_on(struct screen *, struct grid_cell *, int);
2688 void	 screen_alternate_off(struct screen *, struct grid_cell *, int);
2689 
2690 /* window.c */
2691 extern struct windows windows;
2692 extern struct window_pane_tree all_window_panes;
2693 extern const struct window_mode *all_window_modes[];
2694 int		 window_cmp(struct window *, struct window *);
2695 RB_PROTOTYPE(windows, window, entry, window_cmp);
2696 int		 winlink_cmp(struct winlink *, struct winlink *);
2697 RB_PROTOTYPE(winlinks, winlink, entry, winlink_cmp);
2698 int		 window_pane_cmp(struct window_pane *, struct window_pane *);
2699 RB_PROTOTYPE(window_pane_tree, window_pane, tree_entry, window_pane_cmp);
2700 struct winlink	*winlink_find_by_index(struct winlinks *, int);
2701 struct winlink	*winlink_find_by_window(struct winlinks *, struct window *);
2702 struct winlink	*winlink_find_by_window_id(struct winlinks *, u_int);
2703 u_int		 winlink_count(struct winlinks *);
2704 struct winlink	*winlink_add(struct winlinks *, int);
2705 void		 winlink_set_window(struct winlink *, struct window *);
2706 void		 winlink_remove(struct winlinks *, struct winlink *);
2707 struct winlink	*winlink_next(struct winlink *);
2708 struct winlink	*winlink_previous(struct winlink *);
2709 struct winlink	*winlink_next_by_number(struct winlink *, struct session *,
2710 		     int);
2711 struct winlink	*winlink_previous_by_number(struct winlink *, struct session *,
2712 		     int);
2713 void		 winlink_stack_push(struct winlink_stack *, struct winlink *);
2714 void		 winlink_stack_remove(struct winlink_stack *, struct winlink *);
2715 struct window	*window_find_by_id_str(const char *);
2716 struct window	*window_find_by_id(u_int);
2717 void		 window_update_activity(struct window *);
2718 struct window	*window_create(u_int, u_int, u_int, u_int);
2719 void		 window_pane_set_event(struct window_pane *);
2720 struct window_pane *window_get_active_at(struct window *, u_int, u_int);
2721 struct window_pane *window_find_string(struct window *, const char *);
2722 int		 window_has_pane(struct window *, struct window_pane *);
2723 int		 window_set_active_pane(struct window *, struct window_pane *,
2724 		     int);
2725 void		 window_redraw_active_switch(struct window *,
2726 		     struct window_pane *);
2727 struct window_pane *window_add_pane(struct window *, struct window_pane *,
2728 		     u_int, int);
2729 void		 window_resize(struct window *, u_int, u_int, int, int);
2730 void		 window_pane_send_resize(struct window_pane *, int);
2731 int		 window_zoom(struct window_pane *);
2732 int		 window_unzoom(struct window *);
2733 int		 window_push_zoom(struct window *, int);
2734 int		 window_pop_zoom(struct window *);
2735 void		 window_lost_pane(struct window *, struct window_pane *);
2736 void		 window_remove_pane(struct window *, struct window_pane *);
2737 struct window_pane *window_pane_at_index(struct window *, u_int);
2738 struct window_pane *window_pane_next_by_number(struct window *,
2739 			struct window_pane *, u_int);
2740 struct window_pane *window_pane_previous_by_number(struct window *,
2741 			struct window_pane *, u_int);
2742 int		 window_pane_index(struct window_pane *, u_int *);
2743 u_int		 window_count_panes(struct window *);
2744 void		 window_destroy_panes(struct window *);
2745 struct window_pane *window_pane_find_by_id_str(const char *);
2746 struct window_pane *window_pane_find_by_id(u_int);
2747 int		 window_pane_destroy_ready(struct window_pane *);
2748 void		 window_pane_resize(struct window_pane *, u_int, u_int);
2749 void		 window_pane_set_palette(struct window_pane *, u_int, int);
2750 void		 window_pane_unset_palette(struct window_pane *, u_int);
2751 void		 window_pane_reset_palette(struct window_pane *);
2752 int		 window_pane_get_palette(struct window_pane *, int);
2753 int		 window_pane_set_mode(struct window_pane *,
2754 		     struct window_pane *, const struct window_mode *,
2755 		     struct cmd_find_state *, struct args *);
2756 void		 window_pane_reset_mode(struct window_pane *);
2757 void		 window_pane_reset_mode_all(struct window_pane *);
2758 int		 window_pane_key(struct window_pane *, struct client *,
2759 		     struct session *, struct winlink *, key_code,
2760 		     struct mouse_event *);
2761 int		 window_pane_visible(struct window_pane *);
2762 u_int		 window_pane_search(struct window_pane *, const char *, int,
2763 		     int);
2764 const char	*window_printable_flags(struct winlink *);
2765 struct window_pane *window_pane_find_up(struct window_pane *);
2766 struct window_pane *window_pane_find_down(struct window_pane *);
2767 struct window_pane *window_pane_find_left(struct window_pane *);
2768 struct window_pane *window_pane_find_right(struct window_pane *);
2769 void		 window_set_name(struct window *, const char *);
2770 void		 window_add_ref(struct window *, const char *);
2771 void		 window_remove_ref(struct window *, const char *);
2772 void		 winlink_clear_flags(struct winlink *);
2773 int		 winlink_shuffle_up(struct session *, struct winlink *, int);
2774 int		 window_pane_start_input(struct window_pane *,
2775 		     struct cmdq_item *, char **);
2776 void		*window_pane_get_new_data(struct window_pane *,
2777 		     struct window_pane_offset *, size_t *);
2778 void		 window_pane_update_used_data(struct window_pane *,
2779 		     struct window_pane_offset *, size_t);
2780 
2781 /* layout.c */
2782 u_int		 layout_count_cells(struct layout_cell *);
2783 struct layout_cell *layout_create_cell(struct layout_cell *);
2784 void		 layout_free_cell(struct layout_cell *);
2785 void		 layout_print_cell(struct layout_cell *, const char *, u_int);
2786 void		 layout_destroy_cell(struct window *, struct layout_cell *,
2787 		     struct layout_cell **);
2788 void		 layout_resize_layout(struct window *, struct layout_cell *,
2789 		     enum layout_type, int, int);
2790 struct layout_cell *layout_search_by_border(struct layout_cell *, u_int, u_int);
2791 void		 layout_set_size(struct layout_cell *, u_int, u_int, u_int,
2792 		     u_int);
2793 void		 layout_make_leaf(struct layout_cell *, struct window_pane *);
2794 void		 layout_make_node(struct layout_cell *, enum layout_type);
2795 void		 layout_fix_offsets(struct window *);
2796 void		 layout_fix_panes(struct window *);
2797 void		 layout_resize_adjust(struct window *, struct layout_cell *,
2798 		     enum layout_type, int);
2799 void		 layout_init(struct window *, struct window_pane *);
2800 void		 layout_free(struct window *);
2801 void		 layout_resize(struct window *, u_int, u_int);
2802 void		 layout_resize_pane(struct window_pane *, enum layout_type,
2803 		     int, int);
2804 void		 layout_resize_pane_to(struct window_pane *, enum layout_type,
2805 		     u_int);
2806 void		 layout_assign_pane(struct layout_cell *, struct window_pane *);
2807 struct layout_cell *layout_split_pane(struct window_pane *, enum layout_type,
2808 		     int, int);
2809 void		 layout_close_pane(struct window_pane *);
2810 int		 layout_spread_cell(struct window *, struct layout_cell *);
2811 void		 layout_spread_out(struct window_pane *);
2812 
2813 /* layout-custom.c */
2814 char		*layout_dump(struct layout_cell *);
2815 int		 layout_parse(struct window *, const char *);
2816 
2817 /* layout-set.c */
2818 int		 layout_set_lookup(const char *);
2819 u_int		 layout_set_select(struct window *, u_int);
2820 u_int		 layout_set_next(struct window *);
2821 u_int		 layout_set_previous(struct window *);
2822 
2823 /* mode-tree.c */
2824 typedef void (*mode_tree_build_cb)(void *, struct mode_tree_sort_criteria *,
2825 				   uint64_t *, const char *);
2826 typedef void (*mode_tree_draw_cb)(void *, void *, struct screen_write_ctx *,
2827 	     u_int, u_int);
2828 typedef int (*mode_tree_search_cb)(void *, void *, const char *);
2829 typedef void (*mode_tree_menu_cb)(void *, struct client *, key_code);
2830 typedef u_int (*mode_tree_height_cb)(void *, u_int);
2831 typedef void (*mode_tree_each_cb)(void *, void *, struct client *, key_code);
2832 u_int	 mode_tree_count_tagged(struct mode_tree_data *);
2833 void	*mode_tree_get_current(struct mode_tree_data *);
2834 const char *mode_tree_get_current_name(struct mode_tree_data *);
2835 void	 mode_tree_expand_current(struct mode_tree_data *);
2836 void	 mode_tree_collapse_current(struct mode_tree_data *);
2837 void	 mode_tree_expand(struct mode_tree_data *, uint64_t);
2838 int	 mode_tree_set_current(struct mode_tree_data *, uint64_t);
2839 void	 mode_tree_each_tagged(struct mode_tree_data *, mode_tree_each_cb,
2840 	     struct client *, key_code, int);
2841 void	 mode_tree_up(struct mode_tree_data *, int);
2842 void	 mode_tree_down(struct mode_tree_data *, int);
2843 struct mode_tree_data *mode_tree_start(struct window_pane *, struct args *,
2844 	     mode_tree_build_cb, mode_tree_draw_cb, mode_tree_search_cb,
2845 	     mode_tree_menu_cb, mode_tree_height_cb, void *,
2846 	     const struct menu_item *, const char **, u_int, struct screen **);
2847 void	 mode_tree_zoom(struct mode_tree_data *, struct args *);
2848 void	 mode_tree_build(struct mode_tree_data *);
2849 void	 mode_tree_free(struct mode_tree_data *);
2850 void	 mode_tree_resize(struct mode_tree_data *, u_int, u_int);
2851 struct mode_tree_item *mode_tree_add(struct mode_tree_data *,
2852 	     struct mode_tree_item *, void *, uint64_t, const char *,
2853 	     const char *, int);
2854 void	 mode_tree_draw_as_parent(struct mode_tree_item *);
2855 void	 mode_tree_no_tag(struct mode_tree_item *);
2856 void	 mode_tree_remove(struct mode_tree_data *, struct mode_tree_item *);
2857 void	 mode_tree_draw(struct mode_tree_data *);
2858 int	 mode_tree_key(struct mode_tree_data *, struct client *, key_code *,
2859 	     struct mouse_event *, u_int *, u_int *);
2860 void	 mode_tree_run_command(struct client *, struct cmd_find_state *,
2861 	     const char *, const char *);
2862 
2863 /* window-buffer.c */
2864 extern const struct window_mode window_buffer_mode;
2865 
2866 /* window-tree.c */
2867 extern const struct window_mode window_tree_mode;
2868 
2869 /* window-clock.c */
2870 extern const struct window_mode window_clock_mode;
2871 extern const char window_clock_table[14][5][5];
2872 
2873 /* window-client.c */
2874 extern const struct window_mode window_client_mode;
2875 
2876 /* window-copy.c */
2877 extern const struct window_mode window_copy_mode;
2878 extern const struct window_mode window_view_mode;
2879 void printflike(2, 3) window_copy_add(struct window_pane *, const char *, ...);
2880 void		 window_copy_vadd(struct window_pane *, const char *, va_list);
2881 void		 window_copy_pageup(struct window_pane *, int);
2882 void		 window_copy_start_drag(struct client *, struct mouse_event *);
2883 char		*window_copy_get_word(struct window_pane *, u_int, u_int);
2884 char		*window_copy_get_line(struct window_pane *, u_int);
2885 
2886 /* window-option.c */
2887 extern const struct window_mode window_customize_mode;
2888 
2889 /* names.c */
2890 void	 check_window_name(struct window *);
2891 char	*default_window_name(struct window *);
2892 char	*parse_window_name(const char *);
2893 
2894 /* control.c */
2895 void	control_discard(struct client *);
2896 void	control_start(struct client *);
2897 void	control_stop(struct client *);
2898 void	control_set_pane_on(struct client *, struct window_pane *);
2899 void	control_set_pane_off(struct client *, struct window_pane *);
2900 void	control_continue_pane(struct client *, struct window_pane *);
2901 void	control_pause_pane(struct client *, struct window_pane *);
2902 struct window_pane_offset *control_pane_offset(struct client *,
2903 	   struct window_pane *, int *);
2904 void	control_reset_offsets(struct client *);
2905 void printflike(2, 3) control_write(struct client *, const char *, ...);
2906 void	control_write_output(struct client *, struct window_pane *);
2907 int	control_all_done(struct client *);
2908 void	control_add_sub(struct client *, const char *, enum control_sub_type,
2909     	   int, const char *);
2910 void	control_remove_sub(struct client *, const char *);
2911 
2912 /* control-notify.c */
2913 void	control_notify_input(struct client *, struct window_pane *,
2914 	    const u_char *, size_t);
2915 void	control_notify_pane_mode_changed(int);
2916 void	control_notify_window_layout_changed(struct window *);
2917 void	control_notify_window_pane_changed(struct window *);
2918 void	control_notify_window_unlinked(struct session *, struct window *);
2919 void	control_notify_window_linked(struct session *, struct window *);
2920 void	control_notify_window_renamed(struct window *);
2921 void	control_notify_client_session_changed(struct client *);
2922 void	control_notify_session_renamed(struct session *);
2923 void	control_notify_session_created(struct session *);
2924 void	control_notify_session_closed(struct session *);
2925 void	control_notify_session_window_changed(struct session *);
2926 
2927 /* session.c */
2928 extern struct sessions sessions;
2929 int	session_cmp(struct session *, struct session *);
2930 RB_PROTOTYPE(sessions, session, entry, session_cmp);
2931 int		 session_alive(struct session *);
2932 struct session	*session_find(const char *);
2933 struct session	*session_find_by_id_str(const char *);
2934 struct session	*session_find_by_id(u_int);
2935 struct session	*session_create(const char *, const char *, const char *,
2936 		     struct environ *, struct options *, struct termios *);
2937 void		 session_destroy(struct session *, int,	 const char *);
2938 void		 session_add_ref(struct session *, const char *);
2939 void		 session_remove_ref(struct session *, const char *);
2940 char		*session_check_name(const char *);
2941 void		 session_update_activity(struct session *, struct timeval *);
2942 struct session	*session_next_session(struct session *);
2943 struct session	*session_previous_session(struct session *);
2944 struct winlink	*session_new(struct session *, const char *, int, char **,
2945 		     const char *, const char *, int, char **);
2946 struct winlink	*session_attach(struct session *, struct window *, int,
2947 		     char **);
2948 int		 session_detach(struct session *, struct winlink *);
2949 int		 session_has(struct session *, struct window *);
2950 int		 session_is_linked(struct session *, struct window *);
2951 int		 session_next(struct session *, int);
2952 int		 session_previous(struct session *, int);
2953 int		 session_select(struct session *, int);
2954 int		 session_last(struct session *);
2955 int		 session_set_current(struct session *, struct winlink *);
2956 struct session_group *session_group_contains(struct session *);
2957 struct session_group *session_group_find(const char *);
2958 struct session_group *session_group_new(const char *);
2959 void		 session_group_add(struct session_group *, struct session *);
2960 void		 session_group_synchronize_to(struct session *);
2961 void		 session_group_synchronize_from(struct session *);
2962 u_int		 session_group_count(struct session_group *);
2963 u_int		 session_group_attached_count(struct session_group *);
2964 void		 session_renumber_windows(struct session *);
2965 
2966 /* utf8.c */
2967 utf8_char	 utf8_build_one(u_char);
2968 enum utf8_state	 utf8_from_data(const struct utf8_data *, utf8_char *);
2969 void		 utf8_to_data(utf8_char, struct utf8_data *);
2970 void		 utf8_set(struct utf8_data *, u_char);
2971 void		 utf8_copy(struct utf8_data *, const struct utf8_data *);
2972 enum utf8_state	 utf8_open(struct utf8_data *, u_char);
2973 enum utf8_state	 utf8_append(struct utf8_data *, u_char);
2974 int		 utf8_isvalid(const char *);
2975 int		 utf8_strvis(char *, const char *, size_t, int);
2976 int		 utf8_stravis(char **, const char *, int);
2977 int		 utf8_stravisx(char **, const char *, size_t, int);
2978 char		*utf8_sanitize(const char *);
2979 size_t		 utf8_strlen(const struct utf8_data *);
2980 u_int		 utf8_strwidth(const struct utf8_data *, ssize_t);
2981 struct utf8_data *utf8_fromcstr(const char *);
2982 char		*utf8_tocstr(struct utf8_data *);
2983 u_int		 utf8_cstrwidth(const char *);
2984 char		*utf8_padcstr(const char *, u_int);
2985 char		*utf8_rpadcstr(const char *, u_int);
2986 int		 utf8_cstrhas(const char *, const struct utf8_data *);
2987 
2988 /* procname.c */
2989 char   *get_proc_name(int, char *);
2990 char   *get_proc_cwd(int);
2991 
2992 /* log.c */
2993 void	log_add_level(void);
2994 int	log_get_level(void);
2995 void	log_open(const char *);
2996 void	log_toggle(const char *);
2997 void	log_close(void);
2998 void printflike(1, 2) log_debug(const char *, ...);
2999 __dead void printflike(1, 2) fatal(const char *, ...);
3000 __dead void printflike(1, 2) fatalx(const char *, ...);
3001 
3002 /* menu.c */
3003 #define MENU_NOMOUSE 0x1
3004 #define MENU_TAB 0x2
3005 #define MENU_STAYOPEN 0x4
3006 struct menu	*menu_create(const char *);
3007 void		 menu_add_items(struct menu *, const struct menu_item *,
3008 		    struct cmdq_item *, struct client *,
3009 		    struct cmd_find_state *);
3010 void		 menu_add_item(struct menu *, const struct menu_item *,
3011 		    struct cmdq_item *, struct client *,
3012 		    struct cmd_find_state *);
3013 void		 menu_free(struct menu *);
3014 int		 menu_display(struct menu *, int, struct cmdq_item *, u_int,
3015 		    u_int, struct client *, struct cmd_find_state *,
3016 		    menu_choice_cb, void *);
3017 
3018 /* popup.c */
3019 #define POPUP_WRITEKEYS 0x1
3020 #define POPUP_CLOSEEXIT 0x2
3021 #define POPUP_CLOSEEXITZERO 0x4
3022 typedef void (*popup_close_cb)(int, void *);
3023 typedef void (*popup_finish_edit_cb)(char *, size_t, void *);
3024 u_int		 popup_width(struct cmdq_item *, u_int, const char **,
3025 		    struct client *, struct cmd_find_state *);
3026 u_int		 popup_height(u_int, const char **);
3027 int		 popup_display(int, struct cmdq_item *, u_int, u_int, u_int,
3028 		    u_int, u_int, const char **, const char *, const char *,
3029 		    const char *, struct client *, struct cmd_find_state *,
3030 		    popup_close_cb, void *);
3031 int		 popup_editor(struct client *, const char *, size_t,
3032 		    popup_finish_edit_cb, void *);
3033 
3034 /* style.c */
3035 int		 style_parse(struct style *,const struct grid_cell *,
3036 		     const char *);
3037 const char	*style_tostring(struct style *);
3038 void		 style_add(struct grid_cell *, struct options *,
3039 		     const char *, struct format_tree *);
3040 void		 style_apply(struct grid_cell *, struct options *,
3041 		     const char *, struct format_tree *);
3042 void		 style_set(struct style *, const struct grid_cell *);
3043 void		 style_copy(struct style *, struct style *);
3044 
3045 /* spawn.c */
3046 struct winlink	*spawn_window(struct spawn_context *, char **);
3047 struct window_pane *spawn_pane(struct spawn_context *, char **);
3048 
3049 /* regsub.c */
3050 char		*regsub(const char *, const char *, const char *, int);
3051 
3052 #endif /* TMUX_H */
3053