xref: /openbsd-src/usr.bin/tmux/tmux.h (revision 3e8b1db74c103e81d872d6148750233658a8adf7)
1 /* $OpenBSD: tmux.h,v 1.1142 2021/09/10 15:03:18 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 "tmux-protocol.h"
35 #include "xmalloc.h"
36 
37 extern char   **environ;
38 
39 struct args;
40 struct args_command_state;
41 struct client;
42 struct cmd;
43 struct cmd_find_state;
44 struct cmdq_item;
45 struct cmdq_list;
46 struct cmdq_state;
47 struct cmds;
48 struct control_state;
49 struct environ;
50 struct format_job_tree;
51 struct format_tree;
52 struct input_ctx;
53 struct job;
54 struct menu_data;
55 struct mode_tree_data;
56 struct mouse_event;
57 struct options;
58 struct options_array_item;
59 struct options_entry;
60 struct screen_write_citem;
61 struct screen_write_cline;
62 struct screen_write_ctx;
63 struct session;
64 struct tty_ctx;
65 struct tty_code;
66 struct tty_key;
67 struct tmuxpeer;
68 struct tmuxproc;
69 struct winlink;
70 
71 /* Default configuration files and socket paths. */
72 #ifndef TMUX_CONF
73 #define TMUX_CONF "/etc/tmux.conf:~/.tmux.conf"
74 #endif
75 #ifndef TMUX_SOCK
76 #define TMUX_SOCK "$TMUX_TMPDIR:" _PATH_TMP
77 #endif
78 #ifndef TMUX_TERM
79 #define TMUX_TERM "screen"
80 #endif
81 
82 /* Minimum layout cell size, NOT including border lines. */
83 #define PANE_MINIMUM 1
84 
85 /* Minimum and maximum window size. */
86 #define WINDOW_MINIMUM PANE_MINIMUM
87 #define WINDOW_MAXIMUM 10000
88 
89 /* Automatic name refresh interval, in microseconds. Must be < 1 second. */
90 #define NAME_INTERVAL 500000
91 
92 /* Default pixel cell sizes. */
93 #define DEFAULT_XPIXEL 16
94 #define DEFAULT_YPIXEL 32
95 
96 /* Attribute to make GCC check printf-like arguments. */
97 #define printflike(a, b) __attribute__ ((format (printf, a, b)))
98 
99 /* Number of items in array. */
100 #ifndef nitems
101 #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
102 #endif
103 
104 /* Alert option values. */
105 #define ALERT_NONE 0
106 #define ALERT_ANY 1
107 #define ALERT_CURRENT 2
108 #define ALERT_OTHER 3
109 
110 /* Visual option values. */
111 #define VISUAL_OFF 0
112 #define VISUAL_ON 1
113 #define VISUAL_BOTH 2
114 
115 /* No key or unknown key. */
116 #define KEYC_NONE            0x000ff000000000ULL
117 #define KEYC_UNKNOWN         0x000fe000000000ULL
118 
119 /*
120  * Base for special (that is, not Unicode) keys. An enum must be at most a
121  * signed int, so these are based in the highest Unicode PUA.
122  */
123 #define KEYC_BASE            0x0000000010e000ULL
124 #define KEYC_USER            0x0000000010f000ULL
125 
126 /* Key modifier bits. */
127 #define KEYC_META            0x00100000000000ULL
128 #define KEYC_CTRL            0x00200000000000ULL
129 #define KEYC_SHIFT           0x00400000000000ULL
130 
131 /* Key flag bits. */
132 #define KEYC_LITERAL         0x01000000000000ULL
133 #define KEYC_KEYPAD          0x02000000000000ULL
134 #define KEYC_CURSOR          0x04000000000000ULL
135 #define KEYC_IMPLIED_META    0x08000000000000ULL
136 #define KEYC_BUILD_MODIFIERS 0x10000000000000ULL
137 #define KEYC_VI              0x20000000000000ULL
138 
139 /* Masks for key bits. */
140 #define KEYC_MASK_MODIFIERS  0x00f00000000000ULL
141 #define KEYC_MASK_FLAGS      0xff000000000000ULL
142 #define KEYC_MASK_KEY        0x000fffffffffffULL
143 
144 /* Available user keys. */
145 #define KEYC_NUSER 1000
146 
147 /* Is this a mouse key? */
148 #define KEYC_IS_MOUSE(key) \
149 	(((key) & KEYC_MASK_KEY) >= KEYC_MOUSE && \
150 	 ((key) & KEYC_MASK_KEY) < KEYC_BSPACE)
151 
152 /* Is this a Unicode key? */
153 #define KEYC_IS_UNICODE(key) \
154 	(((key) & KEYC_MASK_KEY) > 0x7f && \
155 	 (((key) & KEYC_MASK_KEY) < KEYC_BASE || \
156 	  ((key) & KEYC_MASK_KEY) >= KEYC_BASE_END))
157 
158 /* Multiple click timeout. */
159 #define KEYC_CLICK_TIMEOUT 300
160 
161 /* Mouse key codes. */
162 #define KEYC_MOUSE_KEY(name)					\
163 	KEYC_ ## name ## _PANE,					\
164 	KEYC_ ## name ## _STATUS,				\
165 	KEYC_ ## name ## _STATUS_LEFT,				\
166 	KEYC_ ## name ## _STATUS_RIGHT,				\
167 	KEYC_ ## name ## _STATUS_DEFAULT,			\
168 	KEYC_ ## name ## _BORDER
169 #define KEYC_MOUSE_STRING(name, s)				\
170 	{ #s "Pane", KEYC_ ## name ## _PANE },			\
171 	{ #s "Status", KEYC_ ## name ## _STATUS },		\
172 	{ #s "StatusLeft", KEYC_ ## name ## _STATUS_LEFT },	\
173 	{ #s "StatusRight", KEYC_ ## name ## _STATUS_RIGHT },	\
174 	{ #s "StatusDefault", KEYC_ ## name ## _STATUS_DEFAULT }, \
175 	{ #s "Border", KEYC_ ## name ## _BORDER }
176 
177 /*
178  * A single key. This can be ASCII or Unicode or one of the keys between
179  * KEYC_BASE and KEYC_BASE_END.
180  */
181 typedef unsigned long long key_code;
182 
183 /* Special key codes. */
184 enum {
185 	/* Focus events. */
186 	KEYC_FOCUS_IN = KEYC_BASE,
187 	KEYC_FOCUS_OUT,
188 
189 	/* "Any" key, used if not found in key table. */
190 	KEYC_ANY,
191 
192 	/* Paste brackets. */
193 	KEYC_PASTE_START,
194 	KEYC_PASTE_END,
195 
196 	/* Mouse keys. */
197 	KEYC_MOUSE, /* unclassified mouse event */
198 	KEYC_DRAGGING, /* dragging in progress */
199 	KEYC_DOUBLECLICK, /* double click complete */
200 	KEYC_MOUSE_KEY(MOUSEMOVE),
201 	KEYC_MOUSE_KEY(MOUSEDOWN1),
202 	KEYC_MOUSE_KEY(MOUSEDOWN2),
203 	KEYC_MOUSE_KEY(MOUSEDOWN3),
204 	KEYC_MOUSE_KEY(MOUSEUP1),
205 	KEYC_MOUSE_KEY(MOUSEUP2),
206 	KEYC_MOUSE_KEY(MOUSEUP3),
207 	KEYC_MOUSE_KEY(MOUSEDRAG1),
208 	KEYC_MOUSE_KEY(MOUSEDRAG2),
209 	KEYC_MOUSE_KEY(MOUSEDRAG3),
210 	KEYC_MOUSE_KEY(MOUSEDRAGEND1),
211 	KEYC_MOUSE_KEY(MOUSEDRAGEND2),
212 	KEYC_MOUSE_KEY(MOUSEDRAGEND3),
213 	KEYC_MOUSE_KEY(WHEELUP),
214 	KEYC_MOUSE_KEY(WHEELDOWN),
215 	KEYC_MOUSE_KEY(SECONDCLICK1),
216 	KEYC_MOUSE_KEY(SECONDCLICK2),
217 	KEYC_MOUSE_KEY(SECONDCLICK3),
218 	KEYC_MOUSE_KEY(DOUBLECLICK1),
219 	KEYC_MOUSE_KEY(DOUBLECLICK2),
220 	KEYC_MOUSE_KEY(DOUBLECLICK3),
221 	KEYC_MOUSE_KEY(TRIPLECLICK1),
222 	KEYC_MOUSE_KEY(TRIPLECLICK2),
223 	KEYC_MOUSE_KEY(TRIPLECLICK3),
224 
225 	/* Backspace key. */
226 	KEYC_BSPACE,
227 
228 	/* Function keys. */
229 	KEYC_F1,
230 	KEYC_F2,
231 	KEYC_F3,
232 	KEYC_F4,
233 	KEYC_F5,
234 	KEYC_F6,
235 	KEYC_F7,
236 	KEYC_F8,
237 	KEYC_F9,
238 	KEYC_F10,
239 	KEYC_F11,
240 	KEYC_F12,
241 	KEYC_IC,
242 	KEYC_DC,
243 	KEYC_HOME,
244 	KEYC_END,
245 	KEYC_NPAGE,
246 	KEYC_PPAGE,
247 	KEYC_BTAB,
248 
249 	/* Arrow keys. */
250 	KEYC_UP,
251 	KEYC_DOWN,
252 	KEYC_LEFT,
253 	KEYC_RIGHT,
254 
255 	/* Numeric keypad. */
256 	KEYC_KP_SLASH,
257 	KEYC_KP_STAR,
258 	KEYC_KP_MINUS,
259 	KEYC_KP_SEVEN,
260 	KEYC_KP_EIGHT,
261 	KEYC_KP_NINE,
262 	KEYC_KP_PLUS,
263 	KEYC_KP_FOUR,
264 	KEYC_KP_FIVE,
265 	KEYC_KP_SIX,
266 	KEYC_KP_ONE,
267 	KEYC_KP_TWO,
268 	KEYC_KP_THREE,
269 	KEYC_KP_ENTER,
270 	KEYC_KP_ZERO,
271 	KEYC_KP_PERIOD,
272 
273 	/* End of special keys. */
274 	KEYC_BASE_END
275 };
276 
277 /* Termcap codes. */
278 enum tty_code_code {
279 	TTYC_ACSC,
280 	TTYC_AM,
281 	TTYC_AX,
282 	TTYC_BCE,
283 	TTYC_BEL,
284 	TTYC_BIDI,
285 	TTYC_BLINK,
286 	TTYC_BOLD,
287 	TTYC_CIVIS,
288 	TTYC_CLEAR,
289 	TTYC_CLMG,
290 	TTYC_CMG,
291 	TTYC_CNORM,
292 	TTYC_COLORS,
293 	TTYC_CR,
294 	TTYC_CS,
295 	TTYC_CSR,
296 	TTYC_CUB,
297 	TTYC_CUB1,
298 	TTYC_CUD,
299 	TTYC_CUD1,
300 	TTYC_CUF,
301 	TTYC_CUF1,
302 	TTYC_CUP,
303 	TTYC_CUU,
304 	TTYC_CUU1,
305 	TTYC_CVVIS,
306 	TTYC_DCH,
307 	TTYC_DCH1,
308 	TTYC_DIM,
309 	TTYC_DL,
310 	TTYC_DL1,
311 	TTYC_DSBP,
312 	TTYC_DSEKS,
313 	TTYC_DSFCS,
314 	TTYC_DSMG,
315 	TTYC_E3,
316 	TTYC_ECH,
317 	TTYC_ED,
318 	TTYC_EL,
319 	TTYC_EL1,
320 	TTYC_ENACS,
321 	TTYC_ENBP,
322 	TTYC_ENEKS,
323 	TTYC_ENFCS,
324 	TTYC_ENMG,
325 	TTYC_FSL,
326 	TTYC_HOME,
327 	TTYC_HPA,
328 	TTYC_ICH,
329 	TTYC_ICH1,
330 	TTYC_IL,
331 	TTYC_IL1,
332 	TTYC_INDN,
333 	TTYC_INVIS,
334 	TTYC_KCBT,
335 	TTYC_KCUB1,
336 	TTYC_KCUD1,
337 	TTYC_KCUF1,
338 	TTYC_KCUU1,
339 	TTYC_KDC2,
340 	TTYC_KDC3,
341 	TTYC_KDC4,
342 	TTYC_KDC5,
343 	TTYC_KDC6,
344 	TTYC_KDC7,
345 	TTYC_KDCH1,
346 	TTYC_KDN2,
347 	TTYC_KDN3,
348 	TTYC_KDN4,
349 	TTYC_KDN5,
350 	TTYC_KDN6,
351 	TTYC_KDN7,
352 	TTYC_KEND,
353 	TTYC_KEND2,
354 	TTYC_KEND3,
355 	TTYC_KEND4,
356 	TTYC_KEND5,
357 	TTYC_KEND6,
358 	TTYC_KEND7,
359 	TTYC_KF1,
360 	TTYC_KF10,
361 	TTYC_KF11,
362 	TTYC_KF12,
363 	TTYC_KF13,
364 	TTYC_KF14,
365 	TTYC_KF15,
366 	TTYC_KF16,
367 	TTYC_KF17,
368 	TTYC_KF18,
369 	TTYC_KF19,
370 	TTYC_KF2,
371 	TTYC_KF20,
372 	TTYC_KF21,
373 	TTYC_KF22,
374 	TTYC_KF23,
375 	TTYC_KF24,
376 	TTYC_KF25,
377 	TTYC_KF26,
378 	TTYC_KF27,
379 	TTYC_KF28,
380 	TTYC_KF29,
381 	TTYC_KF3,
382 	TTYC_KF30,
383 	TTYC_KF31,
384 	TTYC_KF32,
385 	TTYC_KF33,
386 	TTYC_KF34,
387 	TTYC_KF35,
388 	TTYC_KF36,
389 	TTYC_KF37,
390 	TTYC_KF38,
391 	TTYC_KF39,
392 	TTYC_KF4,
393 	TTYC_KF40,
394 	TTYC_KF41,
395 	TTYC_KF42,
396 	TTYC_KF43,
397 	TTYC_KF44,
398 	TTYC_KF45,
399 	TTYC_KF46,
400 	TTYC_KF47,
401 	TTYC_KF48,
402 	TTYC_KF49,
403 	TTYC_KF5,
404 	TTYC_KF50,
405 	TTYC_KF51,
406 	TTYC_KF52,
407 	TTYC_KF53,
408 	TTYC_KF54,
409 	TTYC_KF55,
410 	TTYC_KF56,
411 	TTYC_KF57,
412 	TTYC_KF58,
413 	TTYC_KF59,
414 	TTYC_KF6,
415 	TTYC_KF60,
416 	TTYC_KF61,
417 	TTYC_KF62,
418 	TTYC_KF63,
419 	TTYC_KF7,
420 	TTYC_KF8,
421 	TTYC_KF9,
422 	TTYC_KHOM2,
423 	TTYC_KHOM3,
424 	TTYC_KHOM4,
425 	TTYC_KHOM5,
426 	TTYC_KHOM6,
427 	TTYC_KHOM7,
428 	TTYC_KHOME,
429 	TTYC_KIC2,
430 	TTYC_KIC3,
431 	TTYC_KIC4,
432 	TTYC_KIC5,
433 	TTYC_KIC6,
434 	TTYC_KIC7,
435 	TTYC_KICH1,
436 	TTYC_KIND,
437 	TTYC_KLFT2,
438 	TTYC_KLFT3,
439 	TTYC_KLFT4,
440 	TTYC_KLFT5,
441 	TTYC_KLFT6,
442 	TTYC_KLFT7,
443 	TTYC_KMOUS,
444 	TTYC_KNP,
445 	TTYC_KNXT2,
446 	TTYC_KNXT3,
447 	TTYC_KNXT4,
448 	TTYC_KNXT5,
449 	TTYC_KNXT6,
450 	TTYC_KNXT7,
451 	TTYC_KPP,
452 	TTYC_KPRV2,
453 	TTYC_KPRV3,
454 	TTYC_KPRV4,
455 	TTYC_KPRV5,
456 	TTYC_KPRV6,
457 	TTYC_KPRV7,
458 	TTYC_KRI,
459 	TTYC_KRIT2,
460 	TTYC_KRIT3,
461 	TTYC_KRIT4,
462 	TTYC_KRIT5,
463 	TTYC_KRIT6,
464 	TTYC_KRIT7,
465 	TTYC_KUP2,
466 	TTYC_KUP3,
467 	TTYC_KUP4,
468 	TTYC_KUP5,
469 	TTYC_KUP6,
470 	TTYC_KUP7,
471 	TTYC_MS,
472 	TTYC_OL,
473 	TTYC_OP,
474 	TTYC_RECT,
475 	TTYC_REV,
476 	TTYC_RGB,
477 	TTYC_RI,
478 	TTYC_RIN,
479 	TTYC_RMACS,
480 	TTYC_RMCUP,
481 	TTYC_RMKX,
482 	TTYC_SE,
483 	TTYC_SETAB,
484 	TTYC_SETAF,
485 	TTYC_SETAL,
486 	TTYC_SETRGBB,
487 	TTYC_SETRGBF,
488 	TTYC_SETULC,
489 	TTYC_SGR0,
490 	TTYC_SITM,
491 	TTYC_SMACS,
492 	TTYC_SMCUP,
493 	TTYC_SMKX,
494 	TTYC_SMOL,
495 	TTYC_SMSO,
496 	TTYC_SMUL,
497 	TTYC_SMULX,
498 	TTYC_SMXX,
499 	TTYC_SS,
500 	TTYC_SYNC,
501 	TTYC_TC,
502 	TTYC_TSL,
503 	TTYC_U8,
504 	TTYC_VPA,
505 	TTYC_XT
506 };
507 
508 /* Character classes. */
509 #define WHITESPACE " "
510 
511 /* Mode keys. */
512 #define MODEKEY_EMACS 0
513 #define MODEKEY_VI 1
514 
515 /* Modes. */
516 #define MODE_CURSOR 0x1
517 #define MODE_INSERT 0x2
518 #define MODE_KCURSOR 0x4
519 #define MODE_KKEYPAD 0x8
520 #define MODE_WRAP 0x10
521 #define MODE_MOUSE_STANDARD 0x20
522 #define MODE_MOUSE_BUTTON 0x40
523 #define MODE_BLINKING 0x80
524 #define MODE_MOUSE_UTF8 0x100
525 #define MODE_MOUSE_SGR 0x200
526 #define MODE_BRACKETPASTE 0x400
527 #define MODE_FOCUSON 0x800
528 #define MODE_MOUSE_ALL 0x1000
529 #define MODE_ORIGIN 0x2000
530 #define MODE_CRLF 0x4000
531 #define MODE_KEXTENDED 0x8000
532 
533 #define ALL_MODES 0xffffff
534 #define ALL_MOUSE_MODES (MODE_MOUSE_STANDARD|MODE_MOUSE_BUTTON|MODE_MOUSE_ALL)
535 #define MOTION_MOUSE_MODES (MODE_MOUSE_BUTTON|MODE_MOUSE_ALL)
536 
537 /* A single UTF-8 character. */
538 typedef u_int utf8_char;
539 
540 /*
541  * An expanded UTF-8 character. UTF8_SIZE must be big enough to hold combining
542  * characters as well. It can't be more than 32 bytes without changes to how
543  * characters are stored.
544  */
545 #define UTF8_SIZE 21
546 struct utf8_data {
547 	u_char	data[UTF8_SIZE];
548 
549 	u_char	have;
550 	u_char	size;
551 
552 	u_char	width;	/* 0xff if invalid */
553 };
554 enum utf8_state {
555 	UTF8_MORE,
556 	UTF8_DONE,
557 	UTF8_ERROR
558 };
559 
560 /* Colour flags. */
561 #define COLOUR_FLAG_256 0x01000000
562 #define COLOUR_FLAG_RGB 0x02000000
563 
564 /* Special colours. */
565 #define COLOUR_DEFAULT(c) ((c) == 8 || (c) == 9)
566 
567 /* Replacement palette. */
568 struct colour_palette {
569 	int	 fg;
570 	int	 bg;
571 
572 	int	*palette;
573 	int	*default_palette;
574 };
575 
576 /* Grid attributes. Anything above 0xff is stored in an extended cell. */
577 #define GRID_ATTR_BRIGHT 0x1
578 #define GRID_ATTR_DIM 0x2
579 #define GRID_ATTR_UNDERSCORE 0x4
580 #define GRID_ATTR_BLINK 0x8
581 #define GRID_ATTR_REVERSE 0x10
582 #define GRID_ATTR_HIDDEN 0x20
583 #define GRID_ATTR_ITALICS 0x40
584 #define GRID_ATTR_CHARSET 0x80	/* alternative character set */
585 #define GRID_ATTR_STRIKETHROUGH 0x100
586 #define GRID_ATTR_UNDERSCORE_2 0x200
587 #define GRID_ATTR_UNDERSCORE_3 0x400
588 #define GRID_ATTR_UNDERSCORE_4 0x800
589 #define GRID_ATTR_UNDERSCORE_5 0x1000
590 #define GRID_ATTR_OVERLINE 0x2000
591 
592 /* All underscore attributes. */
593 #define GRID_ATTR_ALL_UNDERSCORE \
594 	(GRID_ATTR_UNDERSCORE|	 \
595 	 GRID_ATTR_UNDERSCORE_2| \
596 	 GRID_ATTR_UNDERSCORE_3| \
597 	 GRID_ATTR_UNDERSCORE_4| \
598 	 GRID_ATTR_UNDERSCORE_5)
599 
600 /* Grid flags. */
601 #define GRID_FLAG_FG256 0x1
602 #define GRID_FLAG_BG256 0x2
603 #define GRID_FLAG_PADDING 0x4
604 #define GRID_FLAG_EXTENDED 0x8
605 #define GRID_FLAG_SELECTED 0x10
606 #define GRID_FLAG_NOPALETTE 0x20
607 #define GRID_FLAG_CLEARED 0x40
608 
609 /* Grid line flags. */
610 #define GRID_LINE_WRAPPED 0x1
611 #define GRID_LINE_EXTENDED 0x2
612 #define GRID_LINE_DEAD 0x4
613 
614 /* Grid cell data. */
615 struct grid_cell {
616 	struct utf8_data	data;
617 	u_short			attr;
618 	u_char			flags;
619 	int			fg;
620 	int			bg;
621 	int			us;
622 };
623 
624 /* Grid extended cell entry. */
625 struct grid_extd_entry {
626 	utf8_char		data;
627 	u_short			attr;
628 	u_char			flags;
629 	int			fg;
630 	int			bg;
631 	int			us;
632 } __packed;
633 
634 /* Grid cell entry. */
635 struct grid_cell_entry {
636 	u_char			flags;
637 	union {
638 		u_int		offset;
639 		struct {
640 			u_char	attr;
641 			u_char	fg;
642 			u_char	bg;
643 			u_char	data;
644 		} data;
645 	};
646 } __packed;
647 
648 /* Grid line. */
649 struct grid_line {
650 	u_int			 cellused;
651 	u_int			 cellsize;
652 	struct grid_cell_entry	*celldata;
653 
654 	u_int			 extdsize;
655 	struct grid_extd_entry	*extddata;
656 
657 	int			 flags;
658 } __packed;
659 
660 /* Entire grid of cells. */
661 struct grid {
662 	int			 flags;
663 #define GRID_HISTORY 0x1 /* scroll lines into history */
664 
665 	u_int			 sx;
666 	u_int			 sy;
667 
668 	u_int			 hscrolled;
669 	u_int			 hsize;
670 	u_int			 hlimit;
671 
672 	struct grid_line	*linedata;
673 };
674 
675 /* Virtual cursor in a grid. */
676 struct grid_reader {
677 	struct grid	*gd;
678 	u_int		 cx;
679 	u_int		 cy;
680 };
681 
682 /* Style alignment. */
683 enum style_align {
684 	STYLE_ALIGN_DEFAULT,
685 	STYLE_ALIGN_LEFT,
686 	STYLE_ALIGN_CENTRE,
687 	STYLE_ALIGN_RIGHT,
688 	STYLE_ALIGN_ABSOLUTE_CENTRE
689 };
690 
691 /* Style list. */
692 enum style_list {
693 	STYLE_LIST_OFF,
694 	STYLE_LIST_ON,
695 	STYLE_LIST_FOCUS,
696 	STYLE_LIST_LEFT_MARKER,
697 	STYLE_LIST_RIGHT_MARKER,
698 };
699 
700 /* Style range. */
701 enum style_range_type {
702 	STYLE_RANGE_NONE,
703 	STYLE_RANGE_LEFT,
704 	STYLE_RANGE_RIGHT,
705 	STYLE_RANGE_WINDOW
706 };
707 struct style_range {
708 	enum style_range_type	 type;
709 	u_int			 argument;
710 
711 	u_int			 start;
712 	u_int			 end; /* not included */
713 
714 	TAILQ_ENTRY(style_range) entry;
715 };
716 TAILQ_HEAD(style_ranges, style_range);
717 
718 /* Style default. */
719 enum style_default_type {
720 	STYLE_DEFAULT_BASE,
721 	STYLE_DEFAULT_PUSH,
722 	STYLE_DEFAULT_POP
723 };
724 
725 /* Style option. */
726 struct style {
727 	struct grid_cell	gc;
728 	int			ignore;
729 
730 	int			fill;
731 	enum style_align	align;
732 	enum style_list		list;
733 
734 	enum style_range_type	range_type;
735 	u_int			range_argument;
736 
737 	enum style_default_type	default_type;
738 };
739 
740 /* Cursor style. */
741 enum screen_cursor_style {
742 	SCREEN_CURSOR_DEFAULT,
743 	SCREEN_CURSOR_BLOCK,
744 	SCREEN_CURSOR_UNDERLINE,
745 	SCREEN_CURSOR_BAR
746 };
747 
748 /* Virtual screen. */
749 struct screen_sel;
750 struct screen_titles;
751 struct screen {
752 	char				*title;
753 	char				*path;
754 	struct screen_titles		*titles;
755 
756 	struct grid			*grid;	  /* grid data */
757 
758 	u_int				 cx;	  /* cursor x */
759 	u_int				 cy;	  /* cursor y */
760 
761 	enum screen_cursor_style	 cstyle;  /* cursor style */
762 	char				*ccolour; /* cursor colour */
763 
764 	u_int				 rupper;  /* scroll region top */
765 	u_int				 rlower;  /* scroll region bottom */
766 
767 	int				 mode;
768 
769 	u_int				 saved_cx;
770 	u_int				 saved_cy;
771 	struct grid			*saved_grid;
772 	struct grid_cell		 saved_cell;
773 	int				 saved_flags;
774 
775 	bitstr_t			*tabs;
776 	struct screen_sel		*sel;
777 
778 	struct screen_write_cline	*write_list;
779 };
780 
781 /* Screen write context. */
782 typedef void (*screen_write_init_ctx_cb)(struct screen_write_ctx *,
783     struct tty_ctx *);
784 struct screen_write_ctx {
785 	struct window_pane		*wp;
786 	struct screen			*s;
787 
788 	int				 flags;
789 #define SCREEN_WRITE_SYNC 0x1
790 #define SCREEN_WRITE_ZWJ 0x2
791 
792 	screen_write_init_ctx_cb	 init_ctx_cb;
793 	void				*arg;
794 
795 	struct screen_write_citem	*item;
796 	u_int				 scrolled;
797 	u_int				 bg;
798 };
799 
800 /* Screen redraw context. */
801 struct screen_redraw_ctx {
802 	struct client	*c;
803 
804 	u_int		 statuslines;
805 	int		 statustop;
806 
807 	int		 pane_status;
808 	int		 pane_lines;
809 
810 	struct grid_cell no_pane_gc;
811 	int		 no_pane_gc_set;
812 
813 	u_int		 sx;
814 	u_int		 sy;
815 	u_int		 ox;
816 	u_int		 oy;
817 };
818 
819 /* Screen size. */
820 #define screen_size_x(s) ((s)->grid->sx)
821 #define screen_size_y(s) ((s)->grid->sy)
822 #define screen_hsize(s) ((s)->grid->hsize)
823 #define screen_hlimit(s) ((s)->grid->hlimit)
824 
825 /* Menu. */
826 struct menu_item {
827 	const char	*name;
828 	key_code	 key;
829 	const char	*command;
830 };
831 struct menu {
832 	const char		*title;
833 	struct menu_item	*items;
834 	u_int			 count;
835 	u_int			 width;
836 };
837 typedef void (*menu_choice_cb)(struct menu *, u_int, key_code, void *);
838 
839 /*
840  * Window mode. Windows can be in several modes and this is used to call the
841  * right function to handle input and output.
842  */
843 struct window_mode_entry;
844 struct window_mode {
845 	const char	*name;
846 	const char	*default_format;
847 
848 	struct screen	*(*init)(struct window_mode_entry *,
849 			     struct cmd_find_state *, struct args *);
850 	void		 (*free)(struct window_mode_entry *);
851 	void		 (*resize)(struct window_mode_entry *, u_int, u_int);
852 	void		 (*update)(struct window_mode_entry *);
853 	void		 (*key)(struct window_mode_entry *, struct client *,
854 			     struct session *, struct winlink *, key_code,
855 			     struct mouse_event *);
856 
857 	const char	*(*key_table)(struct window_mode_entry *);
858 	void		 (*command)(struct window_mode_entry *, struct client *,
859 			     struct session *, struct winlink *, struct args *,
860 			     struct mouse_event *);
861 	void		 (*formats)(struct window_mode_entry *,
862 			     struct format_tree *);
863 };
864 
865 /* Active window mode. */
866 struct window_mode_entry {
867 	struct window_pane		*wp;
868 	struct window_pane		*swp;
869 
870 	const struct window_mode	*mode;
871 	void				*data;
872 
873 	struct screen			*screen;
874 	u_int				 prefix;
875 
876 	TAILQ_ENTRY(window_mode_entry)	 entry;
877 };
878 
879 /* Offsets into pane buffer. */
880 struct window_pane_offset {
881 	size_t	used;
882 };
883 
884 /* Queued pane resize. */
885 struct window_pane_resize {
886 	u_int				sx;
887 	u_int				sy;
888 
889 	u_int				osx;
890 	u_int				osy;
891 
892 	TAILQ_ENTRY(window_pane_resize)	entry;
893 };
894 TAILQ_HEAD(window_pane_resizes, window_pane_resize);
895 
896 /* Child window structure. */
897 struct window_pane {
898 	u_int		 id;
899 	u_int		 active_point;
900 
901 	struct window	*window;
902 	struct options	*options;
903 
904 	struct layout_cell *layout_cell;
905 	struct layout_cell *saved_layout_cell;
906 
907 	u_int		 sx;
908 	u_int		 sy;
909 
910 	u_int		 xoff;
911 	u_int		 yoff;
912 
913 	int		 flags;
914 #define PANE_REDRAW 0x1
915 #define PANE_DROP 0x2
916 #define PANE_FOCUSED 0x4
917 /* 0x8 unused */
918 /* 0x10 unused */
919 /* 0x20 unused */
920 #define PANE_INPUTOFF 0x40
921 #define PANE_CHANGED 0x80
922 #define PANE_EXITED 0x100
923 #define PANE_STATUSREADY 0x200
924 #define PANE_STATUSDRAWN 0x400
925 #define PANE_EMPTY 0x800
926 #define PANE_STYLECHANGED 0x1000
927 
928 	int		 argc;
929 	char	       **argv;
930 	char		*shell;
931 	char		*cwd;
932 
933 	pid_t		 pid;
934 	char		 tty[TTY_NAME_MAX];
935 	int		 status;
936 
937 	int		 fd;
938 	struct bufferevent *event;
939 
940 	struct window_pane_offset offset;
941 	size_t		 base_offset;
942 
943 	struct window_pane_resizes resize_queue;
944 	struct event	 resize_timer;
945 
946 	struct input_ctx *ictx;
947 
948 	struct grid_cell cached_gc;
949 	struct grid_cell cached_active_gc;
950 	struct colour_palette palette;
951 
952 	int		 pipe_fd;
953 	struct bufferevent *pipe_event;
954 	struct window_pane_offset pipe_offset;
955 
956 	struct screen	*screen;
957 	struct screen	 base;
958 
959 	struct screen	 status_screen;
960 	size_t		 status_size;
961 
962 	TAILQ_HEAD(, window_mode_entry) modes;
963 
964 	char		*searchstr;
965 	int		 searchregex;
966 
967 	int		 border_gc_set;
968 	struct grid_cell border_gc;
969 
970 	TAILQ_ENTRY(window_pane) entry;
971 	RB_ENTRY(window_pane) tree_entry;
972 };
973 TAILQ_HEAD(window_panes, window_pane);
974 RB_HEAD(window_pane_tree, window_pane);
975 
976 /* Window structure. */
977 struct window {
978 	u_int		 id;
979 	void		*latest;
980 
981 	char		*name;
982 	struct event	 name_event;
983 	struct timeval	 name_time;
984 
985 	struct event	 alerts_timer;
986 	struct event	 offset_timer;
987 
988 	struct timeval	 activity_time;
989 
990 	struct window_pane *active;
991 	struct window_pane *last;
992 	struct window_panes panes;
993 
994 	int		 lastlayout;
995 	struct layout_cell *layout_root;
996 	struct layout_cell *saved_layout_root;
997 	char		*old_layout;
998 
999 	u_int		 sx;
1000 	u_int		 sy;
1001 	u_int		 manual_sx;
1002 	u_int		 manual_sy;
1003 	u_int		 xpixel;
1004 	u_int		 ypixel;
1005 
1006 	u_int		 new_sx;
1007 	u_int		 new_sy;
1008 	u_int		 new_xpixel;
1009 	u_int		 new_ypixel;
1010 
1011 	int		 flags;
1012 #define WINDOW_BELL 0x1
1013 #define WINDOW_ACTIVITY 0x2
1014 #define WINDOW_SILENCE 0x4
1015 #define WINDOW_ZOOMED 0x8
1016 #define WINDOW_WASZOOMED 0x10
1017 #define WINDOW_RESIZE 0x20
1018 #define WINDOW_ALERTFLAGS (WINDOW_BELL|WINDOW_ACTIVITY|WINDOW_SILENCE)
1019 
1020 	int		 alerts_queued;
1021 	TAILQ_ENTRY(window) alerts_entry;
1022 
1023 	struct options	*options;
1024 
1025 	u_int		 references;
1026 	TAILQ_HEAD(, winlink) winlinks;
1027 
1028 	RB_ENTRY(window) entry;
1029 };
1030 RB_HEAD(windows, window);
1031 
1032 /* Entry on local window list. */
1033 struct winlink {
1034 	int		 idx;
1035 	struct session	*session;
1036 	struct window	*window;
1037 
1038 	int		 flags;
1039 #define WINLINK_BELL 0x1
1040 #define WINLINK_ACTIVITY 0x2
1041 #define WINLINK_SILENCE 0x4
1042 #define WINLINK_ALERTFLAGS (WINLINK_BELL|WINLINK_ACTIVITY|WINLINK_SILENCE)
1043 
1044 	RB_ENTRY(winlink) entry;
1045 	TAILQ_ENTRY(winlink) wentry;
1046 	TAILQ_ENTRY(winlink) sentry;
1047 };
1048 RB_HEAD(winlinks, winlink);
1049 TAILQ_HEAD(winlink_stack, winlink);
1050 
1051 /* Window size option. */
1052 #define WINDOW_SIZE_LARGEST 0
1053 #define WINDOW_SIZE_SMALLEST 1
1054 #define WINDOW_SIZE_MANUAL 2
1055 #define WINDOW_SIZE_LATEST 3
1056 
1057 /* Pane border status option. */
1058 #define PANE_STATUS_OFF 0
1059 #define PANE_STATUS_TOP 1
1060 #define PANE_STATUS_BOTTOM 2
1061 
1062 /* Pane border lines option. */
1063 #define PANE_LINES_SINGLE 0
1064 #define PANE_LINES_DOUBLE 1
1065 #define PANE_LINES_HEAVY 2
1066 #define PANE_LINES_SIMPLE 3
1067 #define PANE_LINES_NUMBER 4
1068 
1069 /* Layout direction. */
1070 enum layout_type {
1071 	LAYOUT_LEFTRIGHT,
1072 	LAYOUT_TOPBOTTOM,
1073 	LAYOUT_WINDOWPANE
1074 };
1075 
1076 /* Layout cells queue. */
1077 TAILQ_HEAD(layout_cells, layout_cell);
1078 
1079 /* Layout cell. */
1080 struct layout_cell {
1081 	enum layout_type type;
1082 
1083 	struct layout_cell *parent;
1084 
1085 	u_int		 sx;
1086 	u_int		 sy;
1087 
1088 	u_int		 xoff;
1089 	u_int		 yoff;
1090 
1091 	struct window_pane *wp;
1092 	struct layout_cells cells;
1093 
1094 	TAILQ_ENTRY(layout_cell) entry;
1095 };
1096 
1097 /* Environment variable. */
1098 struct environ_entry {
1099 	char		*name;
1100 	char		*value;
1101 
1102 	int		 flags;
1103 #define ENVIRON_HIDDEN 0x1
1104 
1105 	RB_ENTRY(environ_entry) entry;
1106 };
1107 
1108 /* Client session. */
1109 struct session_group {
1110 	const char		*name;
1111 	TAILQ_HEAD(, session)	 sessions;
1112 
1113 	RB_ENTRY(session_group)	 entry;
1114 };
1115 RB_HEAD(session_groups, session_group);
1116 
1117 struct session {
1118 	u_int		 id;
1119 
1120 	char		*name;
1121 	const char	*cwd;
1122 
1123 	struct timeval	 creation_time;
1124 	struct timeval	 last_attached_time;
1125 	struct timeval	 activity_time;
1126 	struct timeval	 last_activity_time;
1127 
1128 	struct event	 lock_timer;
1129 
1130 	struct winlink	*curw;
1131 	struct winlink_stack lastw;
1132 	struct winlinks	 windows;
1133 
1134 	int		 statusat;
1135 	u_int		 statuslines;
1136 
1137 	struct options	*options;
1138 
1139 #define SESSION_PASTING 0x1
1140 #define SESSION_ALERTED 0x2
1141 	int		 flags;
1142 
1143 	u_int		 attached;
1144 
1145 	struct termios	*tio;
1146 
1147 	struct environ	*environ;
1148 
1149 	int		 references;
1150 
1151 	TAILQ_ENTRY(session) gentry;
1152 	RB_ENTRY(session)    entry;
1153 };
1154 RB_HEAD(sessions, session);
1155 
1156 /* Mouse button masks. */
1157 #define MOUSE_MASK_BUTTONS 3
1158 #define MOUSE_MASK_SHIFT 4
1159 #define MOUSE_MASK_META 8
1160 #define MOUSE_MASK_CTRL 16
1161 #define MOUSE_MASK_DRAG 32
1162 #define MOUSE_MASK_WHEEL 64
1163 #define MOUSE_MASK_MODIFIERS (MOUSE_MASK_SHIFT|MOUSE_MASK_META|MOUSE_MASK_CTRL)
1164 
1165 /* Mouse wheel states. */
1166 #define MOUSE_WHEEL_UP 0
1167 #define MOUSE_WHEEL_DOWN 1
1168 
1169 /* Mouse helpers. */
1170 #define MOUSE_BUTTONS(b) ((b) & MOUSE_MASK_BUTTONS)
1171 #define MOUSE_WHEEL(b) ((b) & MOUSE_MASK_WHEEL)
1172 #define MOUSE_DRAG(b) ((b) & MOUSE_MASK_DRAG)
1173 #define MOUSE_RELEASE(b) (((b) & MOUSE_MASK_BUTTONS) == 3)
1174 
1175 /* Mouse input. */
1176 struct mouse_event {
1177 	int		valid;
1178 	int		ignore;
1179 
1180 	key_code	key;
1181 
1182 	int		statusat;
1183 	u_int		statuslines;
1184 
1185 	u_int		x;
1186 	u_int		y;
1187 	u_int		b;
1188 
1189 	u_int		lx;
1190 	u_int		ly;
1191 	u_int		lb;
1192 
1193 	u_int		ox;
1194 	u_int		oy;
1195 
1196 	int		s;
1197 	int		w;
1198 	int		wp;
1199 
1200 	u_int		sgr_type;
1201 	u_int		sgr_b;
1202 };
1203 
1204 /* Key event. */
1205 struct key_event {
1206 	key_code		key;
1207 	struct mouse_event	m;
1208 };
1209 
1210 /* Terminal definition. */
1211 struct tty_term {
1212 	char		*name;
1213 	struct tty	*tty;
1214 	int		 features;
1215 
1216 	char		 acs[UCHAR_MAX + 1][2];
1217 
1218 	struct tty_code	*codes;
1219 
1220 #define TERM_256COLOURS 0x1
1221 #define TERM_NOAM 0x2
1222 #define TERM_DECSLRM 0x4
1223 #define TERM_DECFRA 0x8
1224 #define TERM_RGBCOLOURS 0x10
1225 #define TERM_VT100LIKE 0x20
1226 	int		 flags;
1227 
1228 	LIST_ENTRY(tty_term) entry;
1229 };
1230 LIST_HEAD(tty_terms, tty_term);
1231 
1232 /* Client terminal. */
1233 struct tty {
1234 	struct client	*client;
1235 	struct event	 start_timer;
1236 
1237 	u_int		 sx;
1238 	u_int		 sy;
1239 	u_int		 xpixel;
1240 	u_int		 ypixel;
1241 
1242 	u_int		 cx;
1243 	u_int		 cy;
1244 	enum screen_cursor_style cstyle;
1245 	char		*ccolour;
1246 
1247 	int		 oflag;
1248 	u_int		 oox;
1249 	u_int		 ooy;
1250 	u_int		 osx;
1251 	u_int		 osy;
1252 
1253 	int		 mode;
1254 
1255 	u_int		 rlower;
1256 	u_int		 rupper;
1257 
1258 	u_int		 rleft;
1259 	u_int		 rright;
1260 
1261 	struct event	 event_in;
1262 	struct evbuffer	*in;
1263 	struct event	 event_out;
1264 	struct evbuffer	*out;
1265 	struct event	 timer;
1266 	size_t		 discarded;
1267 
1268 	struct termios	 tio;
1269 
1270 	struct grid_cell cell;
1271 	struct grid_cell last_cell;
1272 
1273 #define TTY_NOCURSOR 0x1
1274 #define TTY_FREEZE 0x2
1275 #define TTY_TIMER 0x4
1276 /* 0x8 unused */
1277 #define TTY_STARTED 0x10
1278 #define TTY_OPENED 0x20
1279 /* 0x40 unused */
1280 #define TTY_BLOCK 0x80
1281 #define TTY_HAVEDA 0x100
1282 #define TTY_HAVEXDA 0x200
1283 #define TTY_SYNCING 0x400
1284 	int		 flags;
1285 
1286 	struct tty_term	*term;
1287 
1288 	u_int		 mouse_last_x;
1289 	u_int		 mouse_last_y;
1290 	u_int		 mouse_last_b;
1291 	int		 mouse_drag_flag;
1292 	void		(*mouse_drag_update)(struct client *,
1293 			    struct mouse_event *);
1294 	void		(*mouse_drag_release)(struct client *,
1295 			    struct mouse_event *);
1296 
1297 	struct event	 key_timer;
1298 	struct tty_key	*key_tree;
1299 };
1300 
1301 /* Terminal command context. */
1302 typedef void (*tty_ctx_redraw_cb)(const struct tty_ctx *);
1303 typedef int (*tty_ctx_set_client_cb)(struct tty_ctx *, struct client *);
1304 struct tty_ctx {
1305 	struct screen		*s;
1306 
1307 	tty_ctx_redraw_cb	 redraw_cb;
1308 	tty_ctx_set_client_cb	 set_client_cb;
1309 	void			*arg;
1310 
1311 	const struct grid_cell	*cell;
1312 	int			 wrapped;
1313 
1314 	u_int			 num;
1315 	void			*ptr;
1316 
1317 	/*
1318 	 * Cursor and region position before the screen was updated - this is
1319 	 * where the command should be applied; the values in the screen have
1320 	 * already been updated.
1321 	 */
1322 	u_int		 ocx;
1323 	u_int		 ocy;
1324 
1325 	u_int		 orupper;
1326 	u_int		 orlower;
1327 
1328 	/* Target region (usually pane) offset and size. */
1329 	u_int		 xoff;
1330 	u_int		 yoff;
1331 	u_int		 rxoff;
1332 	u_int		 ryoff;
1333 	u_int		 sx;
1334 	u_int		 sy;
1335 
1336 	/* The background colour used for clearing (erasing). */
1337 	u_int		 bg;
1338 
1339 	/* The default colours and palette. */
1340 	struct grid_cell defaults;
1341 	struct colour_palette *palette;
1342 
1343 	/* Containing region (usually window) offset and size. */
1344 	int		 bigger;
1345 	u_int		 wox;
1346 	u_int		 woy;
1347 	u_int		 wsx;
1348 	u_int		 wsy;
1349 };
1350 
1351 /* Saved message entry. */
1352 struct message_entry {
1353 	char				*msg;
1354 	u_int				 msg_num;
1355 	struct timeval			 msg_time;
1356 
1357 	TAILQ_ENTRY(message_entry)	 entry;
1358 };
1359 TAILQ_HEAD(message_list, message_entry);
1360 
1361 /* Argument type. */
1362 enum args_type {
1363 	ARGS_NONE,
1364 	ARGS_STRING,
1365 	ARGS_COMMANDS
1366 };
1367 
1368 /* Argument value. */
1369 struct args_value {
1370 	enum args_type		 type;
1371 	union {
1372 		char		*string;
1373 		struct cmd_list	*cmdlist;
1374 	};
1375 	char			*cached;
1376 	TAILQ_ENTRY(args_value)	 entry;
1377 };
1378 
1379 /* Arguments set. */
1380 struct args_entry;
1381 RB_HEAD(args_tree, args_entry);
1382 
1383 /* Arguments parsing type. */
1384 enum args_parse_type {
1385 	ARGS_PARSE_INVALID,
1386 	ARGS_PARSE_STRING,
1387 	ARGS_PARSE_COMMANDS_OR_STRING,
1388 	ARGS_PARSE_COMMANDS
1389 };
1390 
1391 /* Arguments parsing state. */
1392 typedef enum args_parse_type (*args_parse_cb)(struct args *, u_int, char **);
1393 struct args_parse {
1394 	const char	*template;
1395 	int		 lower;
1396 	int		 upper;
1397 	args_parse_cb	 cb;
1398 };
1399 
1400 /* Command find structures. */
1401 enum cmd_find_type {
1402 	CMD_FIND_PANE,
1403 	CMD_FIND_WINDOW,
1404 	CMD_FIND_SESSION,
1405 };
1406 struct cmd_find_state {
1407 	int			 flags;
1408 	struct cmd_find_state	*current;
1409 
1410 	struct session		*s;
1411 	struct winlink		*wl;
1412 	struct window		*w;
1413 	struct window_pane	*wp;
1414 	int			 idx;
1415 };
1416 
1417 /* Command find flags. */
1418 #define CMD_FIND_PREFER_UNATTACHED 0x1
1419 #define CMD_FIND_QUIET 0x2
1420 #define CMD_FIND_WINDOW_INDEX 0x4
1421 #define CMD_FIND_DEFAULT_MARKED 0x8
1422 #define CMD_FIND_EXACT_SESSION 0x10
1423 #define CMD_FIND_EXACT_WINDOW 0x20
1424 #define CMD_FIND_CANFAIL 0x40
1425 
1426 /* List of commands. */
1427 struct cmd_list {
1428 	int		 references;
1429 	u_int		 group;
1430 	struct cmds	*list;
1431 };
1432 
1433 /* Command return values. */
1434 enum cmd_retval {
1435 	CMD_RETURN_ERROR = -1,
1436 	CMD_RETURN_NORMAL = 0,
1437 	CMD_RETURN_WAIT,
1438 	CMD_RETURN_STOP
1439 };
1440 
1441 /* Command parse result. */
1442 enum cmd_parse_status {
1443 	CMD_PARSE_ERROR,
1444 	CMD_PARSE_SUCCESS
1445 };
1446 struct cmd_parse_result {
1447 	enum cmd_parse_status	 status;
1448 	struct cmd_list		*cmdlist;
1449 	char			*error;
1450 };
1451 struct cmd_parse_input {
1452 	int			 flags;
1453 #define CMD_PARSE_QUIET 0x1
1454 #define CMD_PARSE_PARSEONLY 0x2
1455 #define CMD_PARSE_NOALIAS 0x4
1456 #define CMD_PARSE_VERBOSE 0x8
1457 #define CMD_PARSE_ONEGROUP 0x10
1458 
1459 	const char		*file;
1460 	u_int			 line;
1461 
1462 	struct cmdq_item	*item;
1463 	struct client		*c;
1464 	struct cmd_find_state	 fs;
1465 };
1466 
1467 /* Command queue flags. */
1468 #define CMDQ_STATE_REPEAT 0x1
1469 #define CMDQ_STATE_CONTROL 0x2
1470 #define CMDQ_STATE_NOHOOKS 0x4
1471 
1472 /* Command queue callback. */
1473 typedef enum cmd_retval (*cmdq_cb) (struct cmdq_item *, void *);
1474 
1475 /* Command definition flag. */
1476 struct cmd_entry_flag {
1477 	char			 flag;
1478 	enum cmd_find_type	 type;
1479 	int			 flags;
1480 };
1481 
1482 /* Command definition. */
1483 struct cmd_entry {
1484 	const char		*name;
1485 	const char		*alias;
1486 
1487 	struct args_parse	 args;
1488 	const char		*usage;
1489 
1490 	struct cmd_entry_flag	 source;
1491 	struct cmd_entry_flag	 target;
1492 
1493 #define CMD_STARTSERVER 0x1
1494 #define CMD_READONLY 0x2
1495 #define CMD_AFTERHOOK 0x4
1496 #define CMD_CLIENT_CFLAG 0x8
1497 #define CMD_CLIENT_TFLAG 0x10
1498 #define CMD_CLIENT_CANFAIL 0x20
1499 	int		 flags;
1500 
1501 	enum cmd_retval	 (*exec)(struct cmd *, struct cmdq_item *);
1502 };
1503 
1504 /* Status line. */
1505 #define STATUS_LINES_LIMIT 5
1506 struct status_line_entry {
1507 	char			*expanded;
1508 	struct style_ranges	 ranges;
1509 };
1510 struct status_line {
1511 	struct event		 timer;
1512 
1513 	struct screen		 screen;
1514 	struct screen		*active;
1515 	int			 references;
1516 
1517 	struct grid_cell	 style;
1518 	struct status_line_entry entries[STATUS_LINES_LIMIT];
1519 };
1520 
1521 /* Prompt type. */
1522 #define PROMPT_NTYPES 4
1523 enum prompt_type {
1524 	PROMPT_TYPE_COMMAND,
1525 	PROMPT_TYPE_SEARCH,
1526 	PROMPT_TYPE_TARGET,
1527 	PROMPT_TYPE_WINDOW_TARGET,
1528 	PROMPT_TYPE_INVALID = 0xff
1529 };
1530 
1531 /* File in client. */
1532 typedef void (*client_file_cb) (struct client *, const char *, int, int,
1533     struct evbuffer *, void *);
1534 struct client_file {
1535 	struct client			*c;
1536 	struct tmuxpeer			*peer;
1537 	struct client_files		*tree;
1538 	int				 references;
1539 	int				 stream;
1540 
1541 	char				*path;
1542 	struct evbuffer			*buffer;
1543 	struct bufferevent		*event;
1544 
1545 	int				 fd;
1546 	int				 error;
1547 	int				 closed;
1548 
1549 	client_file_cb			 cb;
1550 	void				*data;
1551 
1552 	RB_ENTRY(client_file)		 entry;
1553 };
1554 RB_HEAD(client_files, client_file);
1555 
1556 /* Client window. */
1557 struct client_window {
1558 	u_int			 window;
1559 	struct window_pane	*pane;
1560 
1561 	u_int			 sx;
1562 	u_int			 sy;
1563 
1564 	RB_ENTRY(client_window)	 entry;
1565 };
1566 RB_HEAD(client_windows, client_window);
1567 
1568 /* Client connection. */
1569 typedef int (*prompt_input_cb)(struct client *, void *, const char *, int);
1570 typedef void (*prompt_free_cb)(void *);
1571 typedef int (*overlay_check_cb)(struct client *, void *, u_int, u_int);
1572 typedef struct screen *(*overlay_mode_cb)(struct client *, void *, u_int *,
1573 	    u_int *);
1574 typedef void (*overlay_draw_cb)(struct client *, void *,
1575 	    struct screen_redraw_ctx *);
1576 typedef int (*overlay_key_cb)(struct client *, void *, struct key_event *);
1577 typedef void (*overlay_free_cb)(struct client *, void *);
1578 typedef void (*overlay_resize_cb)(struct client *, void *);
1579 struct client {
1580 	const char	*name;
1581 	struct tmuxpeer	*peer;
1582 	struct cmdq_list *queue;
1583 
1584 	struct client_windows windows;
1585 
1586 	struct control_state *control_state;
1587 	u_int		 pause_age;
1588 
1589 	pid_t		 pid;
1590 	int		 fd;
1591 	int		 out_fd;
1592 	struct event	 event;
1593 	int		 retval;
1594 
1595 	struct timeval	 creation_time;
1596 	struct timeval	 activity_time;
1597 
1598 	struct environ	*environ;
1599 	struct format_job_tree	*jobs;
1600 
1601 	char		*title;
1602 	const char	*cwd;
1603 
1604 	char		*term_name;
1605 	int		 term_features;
1606 	char		*term_type;
1607 	char	       **term_caps;
1608 	u_int		 term_ncaps;
1609 
1610 	char		*ttyname;
1611 	struct tty	 tty;
1612 
1613 	size_t		 written;
1614 	size_t		 discarded;
1615 	size_t		 redraw;
1616 
1617 	struct event	 repeat_timer;
1618 
1619 	struct event	 click_timer;
1620 	u_int		 click_button;
1621 	struct mouse_event click_event;
1622 
1623 	struct status_line status;
1624 
1625 #define CLIENT_TERMINAL 0x1
1626 #define CLIENT_LOGIN 0x2
1627 #define CLIENT_EXIT 0x4
1628 #define CLIENT_REDRAWWINDOW 0x8
1629 #define CLIENT_REDRAWSTATUS 0x10
1630 #define CLIENT_REPEAT 0x20
1631 #define CLIENT_SUSPENDED 0x40
1632 #define CLIENT_ATTACHED 0x80
1633 #define CLIENT_EXITED 0x100
1634 #define CLIENT_DEAD 0x200
1635 #define CLIENT_REDRAWBORDERS 0x400
1636 #define CLIENT_READONLY 0x800
1637 #define CLIENT_NOSTARTSERVER 0x1000
1638 #define CLIENT_CONTROL 0x2000
1639 #define CLIENT_CONTROLCONTROL 0x4000
1640 #define CLIENT_FOCUSED 0x8000
1641 #define CLIENT_UTF8 0x10000
1642 #define CLIENT_IGNORESIZE 0x20000
1643 #define CLIENT_IDENTIFIED 0x40000
1644 #define CLIENT_STATUSFORCE 0x80000
1645 #define CLIENT_DOUBLECLICK 0x100000
1646 #define CLIENT_TRIPLECLICK 0x200000
1647 #define CLIENT_SIZECHANGED 0x400000
1648 #define CLIENT_STATUSOFF 0x800000
1649 #define CLIENT_REDRAWSTATUSALWAYS 0x1000000
1650 #define CLIENT_REDRAWOVERLAY 0x2000000
1651 #define CLIENT_CONTROL_NOOUTPUT 0x4000000
1652 #define CLIENT_DEFAULTSOCKET 0x8000000
1653 #define CLIENT_STARTSERVER 0x10000000
1654 #define CLIENT_REDRAWPANES 0x20000000
1655 #define CLIENT_NOFORK 0x40000000
1656 #define CLIENT_ACTIVEPANE 0x80000000ULL
1657 #define CLIENT_CONTROL_PAUSEAFTER 0x100000000ULL
1658 #define CLIENT_CONTROL_WAITEXIT 0x200000000ULL
1659 #define CLIENT_WINDOWSIZECHANGED 0x400000000ULL
1660 #define CLIENT_ALLREDRAWFLAGS		\
1661 	(CLIENT_REDRAWWINDOW|		\
1662 	 CLIENT_REDRAWSTATUS|		\
1663 	 CLIENT_REDRAWSTATUSALWAYS|	\
1664 	 CLIENT_REDRAWBORDERS|		\
1665 	 CLIENT_REDRAWOVERLAY|		\
1666 	 CLIENT_REDRAWPANES)
1667 #define CLIENT_UNATTACHEDFLAGS	\
1668 	(CLIENT_DEAD|		\
1669 	 CLIENT_SUSPENDED|	\
1670 	 CLIENT_EXIT)
1671 #define CLIENT_NOSIZEFLAGS	\
1672 	(CLIENT_DEAD|		\
1673 	 CLIENT_SUSPENDED|	\
1674 	 CLIENT_EXIT)
1675 	uint64_t	 flags;
1676 
1677 	enum {
1678 		CLIENT_EXIT_RETURN,
1679 		CLIENT_EXIT_SHUTDOWN,
1680 		CLIENT_EXIT_DETACH
1681 	}		 exit_type;
1682 	enum msgtype	 exit_msgtype;
1683 	char		*exit_session;
1684 	char		*exit_message;
1685 
1686 	struct key_table *keytable;
1687 
1688 	uint64_t	 redraw_panes;
1689 
1690 	int		 message_ignore_keys;
1691 	int		 message_ignore_styles;
1692 	char		*message_string;
1693 	struct event	 message_timer;
1694 
1695 	char		*prompt_string;
1696 	struct utf8_data *prompt_buffer;
1697 	char		*prompt_last;
1698 	size_t		 prompt_index;
1699 	prompt_input_cb	 prompt_inputcb;
1700 	prompt_free_cb	 prompt_freecb;
1701 	void		*prompt_data;
1702 	u_int		 prompt_hindex[PROMPT_NTYPES];
1703 	enum { PROMPT_ENTRY, PROMPT_COMMAND } prompt_mode;
1704 	struct utf8_data *prompt_saved;
1705 #define PROMPT_SINGLE 0x1
1706 #define PROMPT_NUMERIC 0x2
1707 #define PROMPT_INCREMENTAL 0x4
1708 #define PROMPT_NOFORMAT 0x8
1709 #define PROMPT_KEY 0x10
1710 	int		 prompt_flags;
1711 	enum prompt_type prompt_type;
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 	overlay_resize_cb overlay_resize;
1728 	void		*overlay_data;
1729 	struct event	 overlay_timer;
1730 
1731 	struct client_files files;
1732 
1733 	TAILQ_ENTRY(client) entry;
1734 };
1735 TAILQ_HEAD(clients, client);
1736 
1737 /* Control mode subscription type. */
1738 enum control_sub_type {
1739 	CONTROL_SUB_SESSION,
1740 	CONTROL_SUB_PANE,
1741 	CONTROL_SUB_ALL_PANES,
1742 	CONTROL_SUB_WINDOW,
1743 	CONTROL_SUB_ALL_WINDOWS
1744 };
1745 
1746 /* Key binding and key table. */
1747 struct key_binding {
1748 	key_code		 key;
1749 	struct cmd_list		*cmdlist;
1750 	const char		*note;
1751 
1752 	int			 flags;
1753 #define KEY_BINDING_REPEAT 0x1
1754 
1755 	RB_ENTRY(key_binding)	 entry;
1756 };
1757 RB_HEAD(key_bindings, key_binding);
1758 
1759 struct key_table {
1760 	const char		*name;
1761 	struct key_bindings	 key_bindings;
1762 	struct key_bindings	 default_key_bindings;
1763 
1764 	u_int			 references;
1765 
1766 	RB_ENTRY(key_table)	 entry;
1767 };
1768 RB_HEAD(key_tables, key_table);
1769 
1770 /* Option data. */
1771 RB_HEAD(options_array, options_array_item);
1772 union options_value {
1773 	char			*string;
1774 	long long		 number;
1775 	struct style		 style;
1776 	struct options_array	 array;
1777 	struct cmd_list		*cmdlist;
1778 };
1779 
1780 /* Option table entries. */
1781 enum options_table_type {
1782 	OPTIONS_TABLE_STRING,
1783 	OPTIONS_TABLE_NUMBER,
1784 	OPTIONS_TABLE_KEY,
1785 	OPTIONS_TABLE_COLOUR,
1786 	OPTIONS_TABLE_FLAG,
1787 	OPTIONS_TABLE_CHOICE,
1788 	OPTIONS_TABLE_COMMAND
1789 };
1790 
1791 #define OPTIONS_TABLE_NONE 0
1792 #define OPTIONS_TABLE_SERVER 0x1
1793 #define OPTIONS_TABLE_SESSION 0x2
1794 #define OPTIONS_TABLE_WINDOW 0x4
1795 #define OPTIONS_TABLE_PANE 0x8
1796 
1797 #define OPTIONS_TABLE_IS_ARRAY 0x1
1798 #define OPTIONS_TABLE_IS_HOOK 0x2
1799 #define OPTIONS_TABLE_IS_STYLE 0x4
1800 
1801 struct options_table_entry {
1802 	const char		 *name;
1803 	const char		 *alternative_name;
1804 	enum options_table_type	  type;
1805 	int			  scope;
1806 	int			  flags;
1807 
1808 	u_int			  minimum;
1809 	u_int			  maximum;
1810 	const char		**choices;
1811 
1812 	const char		 *default_str;
1813 	long long		  default_num;
1814 	const char		**default_arr;
1815 
1816 	const char		 *separator;
1817 	const char		 *pattern;
1818 
1819 	const char		 *text;
1820 	const char		 *unit;
1821 };
1822 
1823 struct options_name_map {
1824 	const char		*from;
1825 	const char		*to;
1826 };
1827 
1828 /* Common command usages. */
1829 #define CMD_TARGET_PANE_USAGE "[-t target-pane]"
1830 #define CMD_TARGET_WINDOW_USAGE "[-t target-window]"
1831 #define CMD_TARGET_SESSION_USAGE "[-t target-session]"
1832 #define CMD_TARGET_CLIENT_USAGE "[-t target-client]"
1833 #define CMD_SRCDST_PANE_USAGE "[-s src-pane] [-t dst-pane]"
1834 #define CMD_SRCDST_WINDOW_USAGE "[-s src-window] [-t dst-window]"
1835 #define CMD_SRCDST_SESSION_USAGE "[-s src-session] [-t dst-session]"
1836 #define CMD_SRCDST_CLIENT_USAGE "[-s src-client] [-t dst-client]"
1837 #define CMD_BUFFER_USAGE "[-b buffer-name]"
1838 
1839 /* Spawn common context. */
1840 struct spawn_context {
1841 	struct cmdq_item	 *item;
1842 
1843 	struct session		 *s;
1844 	struct winlink		 *wl;
1845 	struct client		 *tc;
1846 
1847 	struct window_pane	 *wp0;
1848 	struct layout_cell	 *lc;
1849 
1850 	const char		 *name;
1851 	char			**argv;
1852 	int			  argc;
1853 	struct environ		 *environ;
1854 
1855 	int			  idx;
1856 	const char		 *cwd;
1857 
1858 	int			  flags;
1859 #define SPAWN_KILL 0x1
1860 #define SPAWN_DETACHED 0x2
1861 #define SPAWN_RESPAWN 0x4
1862 #define SPAWN_BEFORE 0x8
1863 #define SPAWN_NONOTIFY 0x10
1864 #define SPAWN_FULLSIZE 0x20
1865 #define SPAWN_EMPTY 0x40
1866 #define SPAWN_ZOOM 0x80
1867 };
1868 
1869 /* Mode tree sort order. */
1870 struct mode_tree_sort_criteria {
1871 	u_int	field;
1872 	int	reversed;
1873 };
1874 
1875 /* tmux.c */
1876 extern struct options	*global_options;
1877 extern struct options	*global_s_options;
1878 extern struct options	*global_w_options;
1879 extern struct environ	*global_environ;
1880 extern struct timeval	 start_time;
1881 extern const char	*socket_path;
1882 extern const char	*shell_command;
1883 extern int		 ptm_fd;
1884 extern const char	*shell_command;
1885 int		 checkshell(const char *);
1886 void		 setblocking(int, int);
1887 uint64_t	 get_timer(void);
1888 const char	*sig2name(int);
1889 const char	*find_cwd(void);
1890 const char	*find_home(void);
1891 const char	*getversion(void);
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 pid_t	proc_fork_and_daemon(int *);
1907 
1908 /* cfg.c */
1909 extern int cfg_finished;
1910 extern struct client *cfg_client;
1911 extern char **cfg_files;
1912 extern u_int cfg_nfiles;
1913 extern int cfg_quiet;
1914 void	start_cfg(void);
1915 int	load_cfg(const char *, struct client *, struct cmdq_item *, int,
1916 	    struct cmdq_item **);
1917 int	load_cfg_from_buffer(const void *, size_t, const char *,
1918 	    struct client *, struct cmdq_item *, int, struct cmdq_item **);
1919 void printflike(1, 2) cfg_add_cause(const char *, ...);
1920 void	cfg_print_causes(struct cmdq_item *);
1921 void	cfg_show_causes(struct session *);
1922 
1923 /* paste.c */
1924 struct paste_buffer;
1925 const char	*paste_buffer_name(struct paste_buffer *);
1926 u_int		 paste_buffer_order(struct paste_buffer *);
1927 time_t		 paste_buffer_created(struct paste_buffer *);
1928 const char	*paste_buffer_data(struct paste_buffer *, size_t *);
1929 struct paste_buffer *paste_walk(struct paste_buffer *);
1930 struct paste_buffer *paste_get_top(const char **);
1931 struct paste_buffer *paste_get_name(const char *);
1932 void		 paste_free(struct paste_buffer *);
1933 void		 paste_add(const char *, char *, size_t);
1934 int		 paste_rename(const char *, const char *, char **);
1935 int		 paste_set(char *, size_t, const char *, char **);
1936 void		 paste_replace(struct paste_buffer *, char *, size_t);
1937 char		*paste_make_sample(struct paste_buffer *);
1938 
1939 /* format.c */
1940 #define FORMAT_STATUS 0x1
1941 #define FORMAT_FORCE 0x2
1942 #define FORMAT_NOJOBS 0x4
1943 #define FORMAT_VERBOSE 0x8
1944 #define FORMAT_NONE 0
1945 #define FORMAT_PANE 0x80000000U
1946 #define FORMAT_WINDOW 0x40000000U
1947 struct format_tree;
1948 struct format_modifier;
1949 typedef void *(*format_cb)(struct format_tree *);
1950 void		 format_tidy_jobs(void);
1951 const char	*format_skip(const char *, const char *);
1952 int		 format_true(const char *);
1953 struct format_tree *format_create(struct client *, struct cmdq_item *, int,
1954 		     int);
1955 void		 format_free(struct format_tree *);
1956 void		 format_merge(struct format_tree *, struct format_tree *);
1957 struct window_pane *format_get_pane(struct format_tree *);
1958 void printflike(3, 4) format_add(struct format_tree *, const char *,
1959 		     const char *, ...);
1960 void		 format_add_tv(struct format_tree *, const char *,
1961 		     struct timeval *);
1962 void		 format_add_cb(struct format_tree *, const char *, format_cb);
1963 void		 format_log_debug(struct format_tree *, const char *);
1964 void		 format_each(struct format_tree *, void (*)(const char *,
1965 		     const char *, void *), void *);
1966 char		*format_expand_time(struct format_tree *, const char *);
1967 char		*format_expand(struct format_tree *, const char *);
1968 char		*format_single(struct cmdq_item *, const char *,
1969 		     struct client *, struct session *, struct winlink *,
1970 		     struct window_pane *);
1971 char		*format_single_from_state(struct cmdq_item *, const char *,
1972 		    struct client *, struct cmd_find_state *);
1973 char		*format_single_from_target(struct cmdq_item *, const char *);
1974 struct format_tree *format_create_defaults(struct cmdq_item *, struct client *,
1975 		     struct session *, struct winlink *, struct window_pane *);
1976 struct format_tree *format_create_from_state(struct cmdq_item *,
1977 		     struct client *, struct cmd_find_state *);
1978 struct format_tree *format_create_from_target(struct cmdq_item *);
1979 void		 format_defaults(struct format_tree *, struct client *,
1980 		     struct session *, struct winlink *, struct window_pane *);
1981 void		 format_defaults_window(struct format_tree *, struct window *);
1982 void		 format_defaults_pane(struct format_tree *,
1983 		     struct window_pane *);
1984 void		 format_defaults_paste_buffer(struct format_tree *,
1985 		     struct paste_buffer *);
1986 void		 format_lost_client(struct client *);
1987 char		*format_grid_word(struct grid *, u_int, u_int);
1988 char		*format_grid_line(struct grid *, u_int);
1989 
1990 /* format-draw.c */
1991 void		 format_draw(struct screen_write_ctx *,
1992 		     const struct grid_cell *, u_int, const char *,
1993 		     struct style_ranges *);
1994 u_int		 format_width(const char *);
1995 char		*format_trim_left(const char *, u_int);
1996 char		*format_trim_right(const char *, u_int);
1997 
1998 /* notify.c */
1999 void	notify_hook(struct cmdq_item *, const char *);
2000 void	notify_client(const char *, struct client *);
2001 void	notify_session(const char *, struct session *);
2002 void	notify_winlink(const char *, struct winlink *);
2003 void	notify_session_window(const char *, struct session *, struct window *);
2004 void	notify_window(const char *, struct window *);
2005 void	notify_pane(const char *, struct window_pane *);
2006 
2007 /* options.c */
2008 struct options	*options_create(struct options *);
2009 void		 options_free(struct options *);
2010 struct options	*options_get_parent(struct options *);
2011 void		 options_set_parent(struct options *, struct options *);
2012 struct options_entry *options_first(struct options *);
2013 struct options_entry *options_next(struct options_entry *);
2014 struct options_entry *options_empty(struct options *,
2015 		     const struct options_table_entry *);
2016 struct options_entry *options_default(struct options *,
2017 		     const struct options_table_entry *);
2018 char		*options_default_to_string(const struct options_table_entry *);
2019 const char	*options_name(struct options_entry *);
2020 struct options	*options_owner(struct options_entry *);
2021 const struct options_table_entry *options_table_entry(struct options_entry *);
2022 struct options_entry *options_get_only(struct options *, const char *);
2023 struct options_entry *options_get(struct options *, const char *);
2024 void		 options_array_clear(struct options_entry *);
2025 union options_value *options_array_get(struct options_entry *, u_int);
2026 int		 options_array_set(struct options_entry *, u_int, const char *,
2027 		     int, char **);
2028 int		 options_array_assign(struct options_entry *, const char *,
2029 		     char **);
2030 struct options_array_item *options_array_first(struct options_entry *);
2031 struct options_array_item *options_array_next(struct options_array_item *);
2032 u_int		 options_array_item_index(struct options_array_item *);
2033 union options_value *options_array_item_value(struct options_array_item *);
2034 int		 options_is_array(struct options_entry *);
2035 int		 options_is_string(struct options_entry *);
2036 char		*options_to_string(struct options_entry *, int, int);
2037 char		*options_parse(const char *, int *);
2038 struct options_entry *options_parse_get(struct options *, const char *, int *,
2039 		     int);
2040 char		*options_match(const char *, int *, int *);
2041 struct options_entry *options_match_get(struct options *, const char *, int *,
2042 		     int, int *);
2043 const char	*options_get_string(struct options *, const char *);
2044 long long	 options_get_number(struct options *, const char *);
2045 struct options_entry * printflike(4, 5) options_set_string(struct options *,
2046 		     const char *, int, const char *, ...);
2047 struct options_entry *options_set_number(struct options *, const char *,
2048 		     long long);
2049 int		 options_scope_from_name(struct args *, int,
2050 		     const char *, struct cmd_find_state *, struct options **,
2051 		     char **);
2052 int		 options_scope_from_flags(struct args *, int,
2053 		     struct cmd_find_state *, struct options **, char **);
2054 struct style	*options_string_to_style(struct options *, const char *,
2055 		     struct format_tree *);
2056 int		 options_from_string(struct options *,
2057 		     const struct options_table_entry *, const char *,
2058 		     const char *, int, char **);
2059 void		 options_push_changes(const char *);
2060 int		 options_remove_or_default(struct options_entry *, int,
2061 		     char **);
2062 
2063 /* options-table.c */
2064 extern const struct options_table_entry	options_table[];
2065 extern const struct options_name_map	options_other_names[];
2066 
2067 /* job.c */
2068 typedef void (*job_update_cb) (struct job *);
2069 typedef void (*job_complete_cb) (struct job *);
2070 typedef void (*job_free_cb) (void *);
2071 #define JOB_NOWAIT 0x1
2072 #define JOB_KEEPWRITE 0x2
2073 #define JOB_PTY 0x4
2074 struct job	*job_run(const char *, int, char **, struct session *,
2075 		     const char *, job_update_cb, job_complete_cb, job_free_cb,
2076 		     void *, int, int, int);
2077 void		 job_free(struct job *);
2078 int		 job_transfer(struct job *, pid_t *, char *, size_t);
2079 void		 job_resize(struct job *, u_int, u_int);
2080 void		 job_check_died(pid_t, int);
2081 int		 job_get_status(struct job *);
2082 void		*job_get_data(struct job *);
2083 struct bufferevent *job_get_event(struct job *);
2084 void		 job_kill_all(void);
2085 int		 job_still_running(void);
2086 void		 job_print_summary(struct cmdq_item *, int);
2087 
2088 /* environ.c */
2089 struct environ *environ_create(void);
2090 void	environ_free(struct environ *);
2091 struct environ_entry *environ_first(struct environ *);
2092 struct environ_entry *environ_next(struct environ_entry *);
2093 void	environ_copy(struct environ *, struct environ *);
2094 struct environ_entry *environ_find(struct environ *, const char *);
2095 void printflike(4, 5) environ_set(struct environ *, const char *, int,
2096 	    const char *, ...);
2097 void	environ_clear(struct environ *, const char *);
2098 void	environ_put(struct environ *, const char *, int);
2099 void	environ_unset(struct environ *, const char *);
2100 void	environ_update(struct options *, struct environ *, struct environ *);
2101 void	environ_push(struct environ *);
2102 void printflike(2, 3) environ_log(struct environ *, const char *, ...);
2103 struct environ *environ_for_session(struct session *, int);
2104 
2105 /* tty.c */
2106 void	tty_create_log(void);
2107 int	tty_window_bigger(struct tty *);
2108 int	tty_window_offset(struct tty *, u_int *, u_int *, u_int *, u_int *);
2109 void	tty_update_window_offset(struct window *);
2110 void	tty_update_client_offset(struct client *);
2111 void	tty_raw(struct tty *, const char *);
2112 void	tty_attributes(struct tty *, const struct grid_cell *,
2113 	    const struct grid_cell *, struct colour_palette *);
2114 void	tty_reset(struct tty *);
2115 void	tty_region_off(struct tty *);
2116 void	tty_margin_off(struct tty *);
2117 void	tty_cursor(struct tty *, u_int, u_int);
2118 void	tty_putcode(struct tty *, enum tty_code_code);
2119 void	tty_putcode1(struct tty *, enum tty_code_code, int);
2120 void	tty_putcode2(struct tty *, enum tty_code_code, int, int);
2121 void	tty_putcode3(struct tty *, enum tty_code_code, int, int, int);
2122 void	tty_putcode_ptr1(struct tty *, enum tty_code_code, const void *);
2123 void	tty_putcode_ptr2(struct tty *, enum tty_code_code, const void *,
2124 	    const void *);
2125 void	tty_puts(struct tty *, const char *);
2126 void	tty_putc(struct tty *, u_char);
2127 void	tty_putn(struct tty *, const void *, size_t, u_int);
2128 void	tty_cell(struct tty *, const struct grid_cell *,
2129 	    const struct grid_cell *, struct colour_palette *);
2130 int	tty_init(struct tty *, struct client *);
2131 void	tty_resize(struct tty *);
2132 void	tty_set_size(struct tty *, u_int, u_int, u_int, u_int);
2133 void	tty_start_tty(struct tty *);
2134 void	tty_send_requests(struct tty *);
2135 void	tty_stop_tty(struct tty *);
2136 void	tty_set_title(struct tty *, const char *);
2137 void	tty_update_mode(struct tty *, int, struct screen *);
2138 void	tty_draw_line(struct tty *, struct screen *, u_int, u_int, u_int,
2139 	    u_int, u_int, const struct grid_cell *, struct colour_palette *);
2140 void	tty_sync_start(struct tty *);
2141 void	tty_sync_end(struct tty *);
2142 int	tty_open(struct tty *, char **);
2143 void	tty_close(struct tty *);
2144 void	tty_free(struct tty *);
2145 void	tty_update_features(struct tty *);
2146 void	tty_set_selection(struct tty *, const char *, size_t);
2147 void	tty_write(void (*)(struct tty *, const struct tty_ctx *),
2148 	    struct tty_ctx *);
2149 void	tty_cmd_alignmenttest(struct tty *, const struct tty_ctx *);
2150 void	tty_cmd_cell(struct tty *, const struct tty_ctx *);
2151 void	tty_cmd_cells(struct tty *, const struct tty_ctx *);
2152 void	tty_cmd_clearendofline(struct tty *, const struct tty_ctx *);
2153 void	tty_cmd_clearendofscreen(struct tty *, const struct tty_ctx *);
2154 void	tty_cmd_clearline(struct tty *, const struct tty_ctx *);
2155 void	tty_cmd_clearscreen(struct tty *, const struct tty_ctx *);
2156 void	tty_cmd_clearstartofline(struct tty *, const struct tty_ctx *);
2157 void	tty_cmd_clearstartofscreen(struct tty *, const struct tty_ctx *);
2158 void	tty_cmd_deletecharacter(struct tty *, const struct tty_ctx *);
2159 void	tty_cmd_clearcharacter(struct tty *, const struct tty_ctx *);
2160 void	tty_cmd_deleteline(struct tty *, const struct tty_ctx *);
2161 void	tty_cmd_erasecharacter(struct tty *, const struct tty_ctx *);
2162 void	tty_cmd_insertcharacter(struct tty *, const struct tty_ctx *);
2163 void	tty_cmd_insertline(struct tty *, const struct tty_ctx *);
2164 void	tty_cmd_linefeed(struct tty *, const struct tty_ctx *);
2165 void	tty_cmd_scrollup(struct tty *, const struct tty_ctx *);
2166 void	tty_cmd_scrolldown(struct tty *, const struct tty_ctx *);
2167 void	tty_cmd_reverseindex(struct tty *, const struct tty_ctx *);
2168 void	tty_cmd_setselection(struct tty *, const struct tty_ctx *);
2169 void	tty_cmd_rawstring(struct tty *, const struct tty_ctx *);
2170 void	tty_cmd_syncstart(struct tty *, const struct tty_ctx *);
2171 void	tty_default_colours(struct grid_cell *, struct window_pane *);
2172 
2173 /* tty-term.c */
2174 extern struct tty_terms tty_terms;
2175 u_int		 tty_term_ncodes(void);
2176 void		 tty_term_apply(struct tty_term *, const char *, int);
2177 void		 tty_term_apply_overrides(struct tty_term *);
2178 struct tty_term *tty_term_create(struct tty *, char *, char **, u_int, int *,
2179 		     char **);
2180 void		 tty_term_free(struct tty_term *);
2181 int		 tty_term_read_list(const char *, int, char ***, u_int *,
2182 		     char **);
2183 void		 tty_term_free_list(char **, u_int);
2184 int		 tty_term_has(struct tty_term *, enum tty_code_code);
2185 const char	*tty_term_string(struct tty_term *, enum tty_code_code);
2186 const char	*tty_term_string1(struct tty_term *, enum tty_code_code, int);
2187 const char	*tty_term_string2(struct tty_term *, enum tty_code_code, int,
2188 		     int);
2189 const char	*tty_term_string3(struct tty_term *, enum tty_code_code, int,
2190 		     int, int);
2191 const char	*tty_term_ptr1(struct tty_term *, enum tty_code_code,
2192 		     const void *);
2193 const char	*tty_term_ptr2(struct tty_term *, enum tty_code_code,
2194 		     const void *, const void *);
2195 int		 tty_term_number(struct tty_term *, enum tty_code_code);
2196 int		 tty_term_flag(struct tty_term *, enum tty_code_code);
2197 const char	*tty_term_describe(struct tty_term *, enum tty_code_code);
2198 
2199 /* tty-features.c */
2200 void		 tty_add_features(int *, const char *, const char *);
2201 const char	*tty_get_features(int);
2202 int		 tty_apply_features(struct tty_term *, int);
2203 void		 tty_default_features(int *, const char *, u_int);
2204 
2205 /* tty-acs.c */
2206 int		 tty_acs_needed(struct tty *);
2207 const char	*tty_acs_get(struct tty *, u_char);
2208 int		 tty_acs_reverse_get(struct tty *, const char *, size_t);
2209 
2210 /* tty-keys.c */
2211 void		tty_keys_build(struct tty *);
2212 void		tty_keys_free(struct tty *);
2213 int		tty_keys_next(struct tty *);
2214 
2215 /* arguments.c */
2216 void		 args_set(struct args *, u_char, struct args_value *);
2217 struct args 	*args_create(void);
2218 struct args	*args_parse(const struct args_parse *, struct args_value *,
2219 		     u_int, char **);
2220 struct args	*args_copy(struct args *, int, char **);
2221 void		 args_to_vector(struct args *, int *, char ***);
2222 struct args_value *args_from_vector(int, char **);
2223 void		 args_free_value(struct args_value *);
2224 void		 args_free_values(struct args_value *, u_int);
2225 void		 args_free(struct args *);
2226 char		*args_print(struct args *);
2227 char		*args_escape(const char *);
2228 int		 args_has(struct args *, u_char);
2229 const char	*args_get(struct args *, u_char);
2230 u_char		 args_first(struct args *, struct args_entry **);
2231 u_char		 args_next(struct args_entry **);
2232 u_int		 args_count(struct args *);
2233 struct args_value *args_values(struct args *);
2234 struct args_value *args_value(struct args *, u_int);
2235 const char	*args_string(struct args *, u_int);
2236 struct cmd_list	*args_make_commands_now(struct cmd *, struct cmdq_item *,
2237 		     u_int, int);
2238 struct args_command_state *args_make_commands_prepare(struct cmd *,
2239 		     struct cmdq_item *, u_int, const char *, int, int);
2240 struct cmd_list *args_make_commands(struct args_command_state *, int, char **,
2241 		     char **);
2242 void		 args_make_commands_free(struct args_command_state *);
2243 char		*args_make_commands_get_command(struct args_command_state *);
2244 struct args_value *args_first_value(struct args *, u_char);
2245 struct args_value *args_next_value(struct args_value *);
2246 long long	 args_strtonum(struct args *, u_char, long long, long long,
2247 		     char **);
2248 long long	 args_percentage(struct args *, u_char, long long,
2249 		     long long, long long, char **);
2250 long long	 args_string_percentage(const char *, long long, long long,
2251 		     long long, char **);
2252 
2253 /* cmd-find.c */
2254 int		 cmd_find_target(struct cmd_find_state *, struct cmdq_item *,
2255 		     const char *, enum cmd_find_type, int);
2256 struct client	*cmd_find_best_client(struct session *);
2257 struct client	*cmd_find_client(struct cmdq_item *, const char *, int);
2258 void		 cmd_find_clear_state(struct cmd_find_state *, int);
2259 int		 cmd_find_empty_state(struct cmd_find_state *);
2260 int		 cmd_find_valid_state(struct cmd_find_state *);
2261 void		 cmd_find_copy_state(struct cmd_find_state *,
2262 		     struct cmd_find_state *);
2263 void		 cmd_find_from_session(struct cmd_find_state *,
2264 		     struct session *, int);
2265 void		 cmd_find_from_winlink(struct cmd_find_state *,
2266 		     struct winlink *, int);
2267 int		 cmd_find_from_session_window(struct cmd_find_state *,
2268 		     struct session *, struct window *, int);
2269 int		 cmd_find_from_window(struct cmd_find_state *, struct window *,
2270 		     int);
2271 void		 cmd_find_from_winlink_pane(struct cmd_find_state *,
2272 		     struct winlink *, struct window_pane *, int);
2273 int		 cmd_find_from_pane(struct cmd_find_state *,
2274 		     struct window_pane *, int);
2275 int		 cmd_find_from_client(struct cmd_find_state *, struct client *,
2276 		     int);
2277 int		 cmd_find_from_mouse(struct cmd_find_state *,
2278 		     struct mouse_event *, int);
2279 int		 cmd_find_from_nothing(struct cmd_find_state *, int);
2280 
2281 /* cmd.c */
2282 extern const struct cmd_entry *cmd_table[];
2283 void printflike(3, 4) cmd_log_argv(int, char **, const char *, ...);
2284 void		 cmd_prepend_argv(int *, char ***, const char *);
2285 void		 cmd_append_argv(int *, char ***, const char *);
2286 int		 cmd_pack_argv(int, char **, char *, size_t);
2287 int		 cmd_unpack_argv(char *, size_t, int, char ***);
2288 char	       **cmd_copy_argv(int, char **);
2289 void		 cmd_free_argv(int, char **);
2290 char		*cmd_stringify_argv(int, char **);
2291 char		*cmd_get_alias(const char *);
2292 const struct cmd_entry *cmd_get_entry(struct cmd *);
2293 struct args	*cmd_get_args(struct cmd *);
2294 u_int		 cmd_get_group(struct cmd *);
2295 void		 cmd_get_source(struct cmd *, const char **, u_int *);
2296 struct cmd	*cmd_parse(struct args_value *, u_int, const char *, u_int,
2297 		     char **);
2298 struct cmd	*cmd_copy(struct cmd *, int, char **);
2299 void		 cmd_free(struct cmd *);
2300 char		*cmd_print(struct cmd *);
2301 struct cmd_list	*cmd_list_new(void);
2302 struct cmd_list	*cmd_list_copy(struct cmd_list *, int, char **);
2303 void		 cmd_list_append(struct cmd_list *, struct cmd *);
2304 void		 cmd_list_append_all(struct cmd_list *, struct cmd_list *);
2305 void		 cmd_list_move(struct cmd_list *, struct cmd_list *);
2306 void		 cmd_list_free(struct cmd_list *);
2307 char		*cmd_list_print(struct cmd_list *, int);
2308 struct cmd	*cmd_list_first(struct cmd_list *);
2309 struct cmd	*cmd_list_next(struct cmd *);
2310 int		 cmd_list_all_have(struct cmd_list *, int);
2311 int		 cmd_list_any_have(struct cmd_list *, int);
2312 int		 cmd_mouse_at(struct window_pane *, struct mouse_event *,
2313 		     u_int *, u_int *, int);
2314 struct winlink	*cmd_mouse_window(struct mouse_event *, struct session **);
2315 struct window_pane *cmd_mouse_pane(struct mouse_event *, struct session **,
2316 		     struct winlink **);
2317 char		*cmd_template_replace(const char *, const char *, int);
2318 
2319 /* cmd-attach-session.c */
2320 enum cmd_retval	 cmd_attach_session(struct cmdq_item *, const char *, int, int,
2321 		     int, const char *, int, const char *);
2322 
2323 /* cmd-parse.c */
2324 void		 cmd_parse_empty(struct cmd_parse_input *);
2325 struct cmd_parse_result *cmd_parse_from_file(FILE *, struct cmd_parse_input *);
2326 struct cmd_parse_result *cmd_parse_from_string(const char *,
2327 		     struct cmd_parse_input *);
2328 enum cmd_parse_status cmd_parse_and_insert(const char *,
2329 		     struct cmd_parse_input *, struct cmdq_item *,
2330 		     struct cmdq_state *, char **);
2331 enum cmd_parse_status cmd_parse_and_append(const char *,
2332 		     struct cmd_parse_input *, struct client *,
2333 		     struct cmdq_state *, char **);
2334 struct cmd_parse_result *cmd_parse_from_buffer(const void *, size_t,
2335 		     struct cmd_parse_input *);
2336 struct cmd_parse_result *cmd_parse_from_arguments(struct args_value *, u_int,
2337 		     struct cmd_parse_input *);
2338 
2339 /* cmd-queue.c */
2340 struct cmdq_state *cmdq_new_state(struct cmd_find_state *, struct key_event *,
2341 		     int);
2342 struct cmdq_state *cmdq_link_state(struct cmdq_state *);
2343 struct cmdq_state *cmdq_copy_state(struct cmdq_state *);
2344 void		  cmdq_free_state(struct cmdq_state *);
2345 void printflike(3, 4) cmdq_add_format(struct cmdq_state *, const char *,
2346 		     const char *, ...);
2347 void		  cmdq_add_formats(struct cmdq_state *, struct format_tree *);
2348 void		  cmdq_merge_formats(struct cmdq_item *, struct format_tree *);
2349 struct cmdq_list *cmdq_new(void);
2350 void cmdq_free(struct cmdq_list *);
2351 const char	 *cmdq_get_name(struct cmdq_item *);
2352 struct client	 *cmdq_get_client(struct cmdq_item *);
2353 struct client	 *cmdq_get_target_client(struct cmdq_item *);
2354 struct cmdq_state *cmdq_get_state(struct cmdq_item *);
2355 struct cmd_find_state *cmdq_get_target(struct cmdq_item *);
2356 struct cmd_find_state *cmdq_get_source(struct cmdq_item *);
2357 struct key_event *cmdq_get_event(struct cmdq_item *);
2358 struct cmd_find_state *cmdq_get_current(struct cmdq_item *);
2359 int		  cmdq_get_flags(struct cmdq_item *);
2360 struct cmdq_item *cmdq_get_command(struct cmd_list *, struct cmdq_state *);
2361 #define cmdq_get_callback(cb, data) cmdq_get_callback1(#cb, cb, data)
2362 struct cmdq_item *cmdq_get_callback1(const char *, cmdq_cb, void *);
2363 struct cmdq_item *cmdq_get_error(const char *);
2364 struct cmdq_item *cmdq_insert_after(struct cmdq_item *, struct cmdq_item *);
2365 struct cmdq_item *cmdq_append(struct client *, struct cmdq_item *);
2366 void printflike(4, 5) cmdq_insert_hook(struct session *, struct cmdq_item *,
2367 		     struct cmd_find_state *, const char *, ...);
2368 void		 cmdq_continue(struct cmdq_item *);
2369 u_int		 cmdq_next(struct client *);
2370 struct cmdq_item *cmdq_running(struct client *);
2371 void		 cmdq_guard(struct cmdq_item *, const char *, int);
2372 void printflike(2, 3) cmdq_print(struct cmdq_item *, const char *, ...);
2373 void printflike(2, 3) cmdq_error(struct cmdq_item *, const char *, ...);
2374 
2375 /* cmd-wait-for.c */
2376 void	cmd_wait_for_flush(void);
2377 
2378 /* client.c */
2379 int	client_main(struct event_base *, int, char **, uint64_t, int);
2380 
2381 /* key-bindings.c */
2382 struct key_table *key_bindings_get_table(const char *, int);
2383 struct key_table *key_bindings_first_table(void);
2384 struct key_table *key_bindings_next_table(struct key_table *);
2385 void	 key_bindings_unref_table(struct key_table *);
2386 struct key_binding *key_bindings_get(struct key_table *, key_code);
2387 struct key_binding *key_bindings_get_default(struct key_table *, key_code);
2388 struct key_binding *key_bindings_first(struct key_table *);
2389 struct key_binding *key_bindings_next(struct key_table *, struct key_binding *);
2390 void	 key_bindings_add(const char *, key_code, const char *, int,
2391 	     struct cmd_list *);
2392 void	 key_bindings_remove(const char *, key_code);
2393 void	 key_bindings_reset(const char *, key_code);
2394 void	 key_bindings_remove_table(const char *);
2395 void	 key_bindings_reset_table(const char *);
2396 void	 key_bindings_init(void);
2397 struct cmdq_item *key_bindings_dispatch(struct key_binding *,
2398 	     struct cmdq_item *, struct client *, struct key_event *,
2399 	     struct cmd_find_state *);
2400 
2401 /* key-string.c */
2402 key_code	 key_string_lookup_string(const char *);
2403 const char	*key_string_lookup_key(key_code, int);
2404 
2405 /* alerts.c */
2406 void	alerts_reset_all(void);
2407 void	alerts_queue(struct window *, int);
2408 void	alerts_check_session(struct session *);
2409 
2410 /* file.c */
2411 int	 file_cmp(struct client_file *, struct client_file *);
2412 RB_PROTOTYPE(client_files, client_file, entry, file_cmp);
2413 struct client_file *file_create_with_peer(struct tmuxpeer *,
2414 	    struct client_files *, int, client_file_cb, void *);
2415 struct client_file *file_create_with_client(struct client *, int,
2416 	    client_file_cb, void *);
2417 void	 file_free(struct client_file *);
2418 void	 file_fire_done(struct client_file *);
2419 void	 file_fire_read(struct client_file *);
2420 int	 file_can_print(struct client *);
2421 void printflike(2, 3) file_print(struct client *, const char *, ...);
2422 void printflike(2, 0) file_vprint(struct client *, const char *, va_list);
2423 void	 file_print_buffer(struct client *, void *, size_t);
2424 void printflike(2, 3) file_error(struct client *, const char *, ...);
2425 void	 file_write(struct client *, const char *, int, const void *, size_t,
2426 	     client_file_cb, void *);
2427 void	 file_read(struct client *, const char *, client_file_cb, void *);
2428 void	 file_push(struct client_file *);
2429 int	 file_write_left(struct client_files *);
2430 void	 file_write_open(struct client_files *, struct tmuxpeer *,
2431 	     struct imsg *, int, int, client_file_cb, void *);
2432 void	 file_write_data(struct client_files *, struct imsg *);
2433 void	 file_write_close(struct client_files *, struct imsg *);
2434 void	 file_read_open(struct client_files *, struct tmuxpeer *, struct imsg *,
2435 	     int, int, client_file_cb, void *);
2436 void	 file_write_ready(struct client_files *, struct imsg *);
2437 void	 file_read_data(struct client_files *, struct imsg *);
2438 void	 file_read_done(struct client_files *, struct imsg *);
2439 
2440 /* server.c */
2441 extern struct tmuxproc *server_proc;
2442 extern struct clients clients;
2443 extern struct cmd_find_state marked_pane;
2444 extern struct message_list message_log;
2445 void	 server_set_marked(struct session *, struct winlink *,
2446 	     struct window_pane *);
2447 void	 server_clear_marked(void);
2448 int	 server_is_marked(struct session *, struct winlink *,
2449 	     struct window_pane *);
2450 int	 server_check_marked(void);
2451 int	 server_start(struct tmuxproc *, int, struct event_base *, int, char *);
2452 void	 server_update_socket(void);
2453 void	 server_add_accept(int);
2454 void printflike(1, 2) server_add_message(const char *, ...);
2455 
2456 /* server-client.c */
2457 RB_PROTOTYPE(client_windows, client_window, entry, server_client_window_cmp);
2458 u_int	 server_client_how_many(void);
2459 void	 server_client_set_overlay(struct client *, u_int, overlay_check_cb,
2460 	     overlay_mode_cb, overlay_draw_cb, overlay_key_cb,
2461 	     overlay_free_cb, overlay_resize_cb, void *);
2462 void	 server_client_clear_overlay(struct client *);
2463 void	 server_client_set_key_table(struct client *, const char *);
2464 const char *server_client_get_key_table(struct client *);
2465 int	 server_client_check_nested(struct client *);
2466 int	 server_client_handle_key(struct client *, struct key_event *);
2467 struct client *server_client_create(int);
2468 int	 server_client_open(struct client *, char **);
2469 void	 server_client_unref(struct client *);
2470 void	 server_client_set_session(struct client *, struct session *);
2471 void	 server_client_lost(struct client *);
2472 void	 server_client_suspend(struct client *);
2473 void	 server_client_detach(struct client *, enum msgtype);
2474 void	 server_client_exec(struct client *, const char *);
2475 void	 server_client_loop(void);
2476 void	 server_client_push_stdout(struct client *);
2477 void	 server_client_push_stderr(struct client *);
2478 const char *server_client_get_cwd(struct client *, struct session *);
2479 void	 server_client_set_flags(struct client *, const char *);
2480 const char *server_client_get_flags(struct client *);
2481 struct client_window *server_client_get_client_window(struct client *, u_int);
2482 struct client_window *server_client_add_client_window(struct client *, u_int);
2483 struct window_pane *server_client_get_pane(struct client *);
2484 void	 server_client_set_pane(struct client *, struct window_pane *);
2485 void	 server_client_remove_pane(struct window_pane *);
2486 
2487 /* server-fn.c */
2488 void	 server_redraw_client(struct client *);
2489 void	 server_status_client(struct client *);
2490 void	 server_redraw_session(struct session *);
2491 void	 server_redraw_session_group(struct session *);
2492 void	 server_status_session(struct session *);
2493 void	 server_status_session_group(struct session *);
2494 void	 server_redraw_window(struct window *);
2495 void	 server_redraw_window_borders(struct window *);
2496 void	 server_status_window(struct window *);
2497 void	 server_lock(void);
2498 void	 server_lock_session(struct session *);
2499 void	 server_lock_client(struct client *);
2500 void	 server_kill_pane(struct window_pane *);
2501 void	 server_kill_window(struct window *, int);
2502 void	 server_renumber_session(struct session *);
2503 void	 server_renumber_all(void);
2504 int	 server_link_window(struct session *,
2505 	     struct winlink *, struct session *, int, int, int, char **);
2506 void	 server_unlink_window(struct session *, struct winlink *);
2507 void	 server_destroy_pane(struct window_pane *, int);
2508 void	 server_destroy_session(struct session *);
2509 void	 server_check_unattached(void);
2510 void	 server_unzoom_window(struct window *);
2511 
2512 /* status.c */
2513 extern char	**status_prompt_hlist[];
2514 extern u_int	  status_prompt_hsize[];
2515 void	 status_timer_start(struct client *);
2516 void	 status_timer_start_all(void);
2517 void	 status_update_cache(struct session *);
2518 int	 status_at_line(struct client *);
2519 u_int	 status_line_size(struct client *);
2520 struct style_range *status_get_range(struct client *, u_int, u_int);
2521 void	 status_init(struct client *);
2522 void	 status_free(struct client *);
2523 int	 status_redraw(struct client *);
2524 void printflike(5, 6) status_message_set(struct client *, int, int, int,
2525 	     const char *, ...);
2526 void	 status_message_clear(struct client *);
2527 int	 status_message_redraw(struct client *);
2528 void	 status_prompt_set(struct client *, struct cmd_find_state *,
2529 	     const char *, const char *, prompt_input_cb, prompt_free_cb,
2530 	     void *, int, enum prompt_type);
2531 void	 status_prompt_clear(struct client *);
2532 int	 status_prompt_redraw(struct client *);
2533 int	 status_prompt_key(struct client *, key_code);
2534 void	 status_prompt_update(struct client *, const char *, const char *);
2535 void	 status_prompt_load_history(void);
2536 void	 status_prompt_save_history(void);
2537 const char *status_prompt_type_string(u_int);
2538 enum prompt_type status_prompt_type(const char *type);
2539 
2540 /* resize.c */
2541 void	 resize_window(struct window *, u_int, u_int, int, int);
2542 void	 default_window_size(struct client *, struct session *, struct window *,
2543 	     u_int *, u_int *, u_int *, u_int *, int);
2544 void	 recalculate_size(struct window *, int);
2545 void	 recalculate_sizes(void);
2546 void	 recalculate_sizes_now(int);
2547 
2548 /* input.c */
2549 struct input_ctx *input_init(struct window_pane *, struct bufferevent *,
2550 	     struct colour_palette *);
2551 void	 input_free(struct input_ctx *);
2552 void	 input_reset(struct input_ctx *, int);
2553 struct evbuffer *input_pending(struct input_ctx *);
2554 void	 input_parse_pane(struct window_pane *);
2555 void	 input_parse_buffer(struct window_pane *, u_char *, size_t);
2556 void	 input_parse_screen(struct input_ctx *, struct screen *,
2557 	     screen_write_init_ctx_cb, void *, u_char *, size_t);
2558 
2559 /* input-key.c */
2560 void	 input_key_build(void);
2561 int	 input_key_pane(struct window_pane *, key_code, struct mouse_event *);
2562 int	 input_key(struct screen *, struct bufferevent *, key_code);
2563 int	 input_key_get_mouse(struct screen *, struct mouse_event *, u_int,
2564 	     u_int, const char **, size_t *);
2565 
2566 /* colour.c */
2567 int	 colour_find_rgb(u_char, u_char, u_char);
2568 int	 colour_join_rgb(u_char, u_char, u_char);
2569 void	 colour_split_rgb(int, u_char *, u_char *, u_char *);
2570 const char *colour_tostring(int);
2571 int	 colour_fromstring(const char *s);
2572 int	 colour_256toRGB(int);
2573 int	 colour_256to16(int);
2574 int	 colour_byname(const char *);
2575 void	 colour_palette_init(struct colour_palette *);
2576 void	 colour_palette_clear(struct colour_palette *);
2577 void	 colour_palette_free(struct colour_palette *);
2578 int	 colour_palette_get(struct colour_palette *, int);
2579 int	 colour_palette_set(struct colour_palette *, int, int);
2580 void	 colour_palette_from_option(struct colour_palette *, struct options *);
2581 
2582 /* attributes.c */
2583 const char *attributes_tostring(int);
2584 int	 attributes_fromstring(const char *);
2585 
2586 /* grid.c */
2587 extern const struct grid_cell grid_default_cell;
2588 void	 grid_empty_line(struct grid *, u_int, u_int);
2589 int	 grid_cells_equal(const struct grid_cell *, const struct grid_cell *);
2590 int	 grid_cells_look_equal(const struct grid_cell *,
2591 	     const struct grid_cell *);
2592 struct grid *grid_create(u_int, u_int, u_int);
2593 void	 grid_destroy(struct grid *);
2594 int	 grid_compare(struct grid *, struct grid *);
2595 void	 grid_collect_history(struct grid *);
2596 void	 grid_remove_history(struct grid *, u_int );
2597 void	 grid_scroll_history(struct grid *, u_int);
2598 void	 grid_scroll_history_region(struct grid *, u_int, u_int, u_int);
2599 void	 grid_clear_history(struct grid *);
2600 const struct grid_line *grid_peek_line(struct grid *, u_int);
2601 void	 grid_get_cell(struct grid *, u_int, u_int, struct grid_cell *);
2602 void	 grid_set_cell(struct grid *, u_int, u_int, const struct grid_cell *);
2603 void	 grid_set_padding(struct grid *, u_int, u_int);
2604 void	 grid_set_cells(struct grid *, u_int, u_int, const struct grid_cell *,
2605 	     const char *, size_t);
2606 struct grid_line *grid_get_line(struct grid *, u_int);
2607 void	 grid_adjust_lines(struct grid *, u_int);
2608 void	 grid_clear(struct grid *, u_int, u_int, u_int, u_int, u_int);
2609 void	 grid_clear_lines(struct grid *, u_int, u_int, u_int);
2610 void	 grid_move_lines(struct grid *, u_int, u_int, u_int, u_int);
2611 void	 grid_move_cells(struct grid *, u_int, u_int, u_int, u_int, u_int);
2612 char	*grid_string_cells(struct grid *, u_int, u_int, u_int,
2613 	     struct grid_cell **, int, int, int);
2614 void	 grid_duplicate_lines(struct grid *, u_int, struct grid *, u_int,
2615 	     u_int);
2616 void	 grid_reflow(struct grid *, u_int);
2617 void	 grid_wrap_position(struct grid *, u_int, u_int, u_int *, u_int *);
2618 void	 grid_unwrap_position(struct grid *, u_int *, u_int *, u_int, u_int);
2619 u_int	 grid_line_length(struct grid *, u_int);
2620 
2621 /* grid-reader.c */
2622 void	 grid_reader_start(struct grid_reader *, struct grid *, u_int, u_int);
2623 void	 grid_reader_get_cursor(struct grid_reader *, u_int *, u_int *);
2624 u_int	 grid_reader_line_length(struct grid_reader *);
2625 int	 grid_reader_in_set(struct grid_reader *, const char *);
2626 void	 grid_reader_cursor_right(struct grid_reader *, int, int);
2627 void	 grid_reader_cursor_left(struct grid_reader *, int);
2628 void	 grid_reader_cursor_down(struct grid_reader *);
2629 void	 grid_reader_cursor_up(struct grid_reader *);
2630 void	 grid_reader_cursor_start_of_line(struct grid_reader *, int);
2631 void	 grid_reader_cursor_end_of_line(struct grid_reader *, int, int);
2632 void	 grid_reader_cursor_next_word(struct grid_reader *, const char *);
2633 void	 grid_reader_cursor_next_word_end(struct grid_reader *, const char *);
2634 void	 grid_reader_cursor_previous_word(struct grid_reader *, const char *,
2635 	     int, int);
2636 int	 grid_reader_cursor_jump(struct grid_reader *,
2637 	     const struct utf8_data *);
2638 int	 grid_reader_cursor_jump_back(struct grid_reader *,
2639 	     const struct utf8_data *);
2640 void	 grid_reader_cursor_back_to_indentation(struct grid_reader *);
2641 
2642 /* grid-view.c */
2643 void	 grid_view_get_cell(struct grid *, u_int, u_int, struct grid_cell *);
2644 void	 grid_view_set_cell(struct grid *, u_int, u_int,
2645 	     const struct grid_cell *);
2646 void	 grid_view_set_padding(struct grid *, u_int, u_int);
2647 void	 grid_view_set_cells(struct grid *, u_int, u_int,
2648 	     const struct grid_cell *, const char *, size_t);
2649 void	 grid_view_clear_history(struct grid *, u_int);
2650 void	 grid_view_clear(struct grid *, u_int, u_int, u_int, u_int, u_int);
2651 void	 grid_view_scroll_region_up(struct grid *, u_int, u_int, u_int);
2652 void	 grid_view_scroll_region_down(struct grid *, u_int, u_int, u_int);
2653 void	 grid_view_insert_lines(struct grid *, u_int, u_int, u_int);
2654 void	 grid_view_insert_lines_region(struct grid *, u_int, u_int, u_int,
2655 	     u_int);
2656 void	 grid_view_delete_lines(struct grid *, u_int, u_int, u_int);
2657 void	 grid_view_delete_lines_region(struct grid *, u_int, u_int, u_int,
2658 	     u_int);
2659 void	 grid_view_insert_cells(struct grid *, u_int, u_int, u_int, u_int);
2660 void	 grid_view_delete_cells(struct grid *, u_int, u_int, u_int, u_int);
2661 char	*grid_view_string_cells(struct grid *, u_int, u_int, u_int);
2662 
2663 /* screen-write.c */
2664 void	 screen_write_make_list(struct screen *);
2665 void	 screen_write_free_list(struct screen *);
2666 void	 screen_write_start_pane(struct screen_write_ctx *,
2667 	     struct window_pane *, struct screen *);
2668 void	 screen_write_start(struct screen_write_ctx *, struct screen *);
2669 void	 screen_write_start_callback(struct screen_write_ctx *, struct screen *,
2670 	     screen_write_init_ctx_cb, void *);
2671 void	 screen_write_stop(struct screen_write_ctx *);
2672 void	 screen_write_reset(struct screen_write_ctx *);
2673 size_t printflike(1, 2) screen_write_strlen(const char *, ...);
2674 int printflike(7, 8) screen_write_text(struct screen_write_ctx *, u_int, u_int,
2675 	     u_int, int, const struct grid_cell *, const char *, ...);
2676 void printflike(3, 4) screen_write_puts(struct screen_write_ctx *,
2677 	     const struct grid_cell *, const char *, ...);
2678 void printflike(4, 5) screen_write_nputs(struct screen_write_ctx *,
2679 	     ssize_t, const struct grid_cell *, const char *, ...);
2680 void printflike(4, 0) screen_write_vnputs(struct screen_write_ctx *, ssize_t,
2681 	     const struct grid_cell *, const char *, va_list);
2682 void	 screen_write_putc(struct screen_write_ctx *, const struct grid_cell *,
2683 	     u_char);
2684 void	 screen_write_fast_copy(struct screen_write_ctx *, struct screen *,
2685 	     u_int, u_int, u_int, u_int);
2686 void	 screen_write_hline(struct screen_write_ctx *, u_int, int, int);
2687 void	 screen_write_vline(struct screen_write_ctx *, u_int, int, int);
2688 void	 screen_write_menu(struct screen_write_ctx *, struct menu *, int,
2689 	     const struct grid_cell *);
2690 void	 screen_write_box(struct screen_write_ctx *, u_int, u_int);
2691 void	 screen_write_preview(struct screen_write_ctx *, struct screen *, u_int,
2692 	     u_int);
2693 void	 screen_write_backspace(struct screen_write_ctx *);
2694 void	 screen_write_mode_set(struct screen_write_ctx *, int);
2695 void	 screen_write_mode_clear(struct screen_write_ctx *, int);
2696 void	 screen_write_cursorup(struct screen_write_ctx *, u_int);
2697 void	 screen_write_cursordown(struct screen_write_ctx *, u_int);
2698 void	 screen_write_cursorright(struct screen_write_ctx *, u_int);
2699 void	 screen_write_cursorleft(struct screen_write_ctx *, u_int);
2700 void	 screen_write_alignmenttest(struct screen_write_ctx *);
2701 void	 screen_write_insertcharacter(struct screen_write_ctx *, u_int, u_int);
2702 void	 screen_write_deletecharacter(struct screen_write_ctx *, u_int, u_int);
2703 void	 screen_write_clearcharacter(struct screen_write_ctx *, u_int, u_int);
2704 void	 screen_write_insertline(struct screen_write_ctx *, u_int, u_int);
2705 void	 screen_write_deleteline(struct screen_write_ctx *, u_int, u_int);
2706 void	 screen_write_clearline(struct screen_write_ctx *, u_int);
2707 void	 screen_write_clearendofline(struct screen_write_ctx *, u_int);
2708 void	 screen_write_clearstartofline(struct screen_write_ctx *, u_int);
2709 void	 screen_write_cursormove(struct screen_write_ctx *, int, int, int);
2710 void	 screen_write_reverseindex(struct screen_write_ctx *, u_int);
2711 void	 screen_write_scrollregion(struct screen_write_ctx *, u_int, u_int);
2712 void	 screen_write_linefeed(struct screen_write_ctx *, int, u_int);
2713 void	 screen_write_scrollup(struct screen_write_ctx *, u_int, u_int);
2714 void	 screen_write_scrolldown(struct screen_write_ctx *, u_int, u_int);
2715 void	 screen_write_carriagereturn(struct screen_write_ctx *);
2716 void	 screen_write_clearendofscreen(struct screen_write_ctx *, u_int);
2717 void	 screen_write_clearstartofscreen(struct screen_write_ctx *, u_int);
2718 void	 screen_write_clearscreen(struct screen_write_ctx *, u_int);
2719 void	 screen_write_clearhistory(struct screen_write_ctx *);
2720 void	 screen_write_fullredraw(struct screen_write_ctx *);
2721 void	 screen_write_collect_end(struct screen_write_ctx *);
2722 void	 screen_write_collect_add(struct screen_write_ctx *,
2723 	     const struct grid_cell *);
2724 void	 screen_write_cell(struct screen_write_ctx *, const struct grid_cell *);
2725 void	 screen_write_setselection(struct screen_write_ctx *, u_char *, u_int);
2726 void	 screen_write_rawstring(struct screen_write_ctx *, u_char *, u_int);
2727 void	 screen_write_alternateon(struct screen_write_ctx *,
2728 	     struct grid_cell *, int);
2729 void	 screen_write_alternateoff(struct screen_write_ctx *,
2730 	     struct grid_cell *, int);
2731 
2732 /* screen-redraw.c */
2733 void	 screen_redraw_screen(struct client *);
2734 void	 screen_redraw_pane(struct client *, struct window_pane *);
2735 
2736 /* screen.c */
2737 void	 screen_init(struct screen *, u_int, u_int, u_int);
2738 void	 screen_reinit(struct screen *);
2739 void	 screen_free(struct screen *);
2740 void	 screen_reset_tabs(struct screen *);
2741 void	 screen_set_cursor_style(struct screen *, u_int);
2742 void	 screen_set_cursor_colour(struct screen *, const char *);
2743 int	 screen_set_title(struct screen *, const char *);
2744 void	 screen_set_path(struct screen *, const char *);
2745 void	 screen_push_title(struct screen *);
2746 void	 screen_pop_title(struct screen *);
2747 void	 screen_resize(struct screen *, u_int, u_int, int);
2748 void	 screen_resize_cursor(struct screen *, u_int, u_int, int, int, int);
2749 void	 screen_set_selection(struct screen *, u_int, u_int, u_int, u_int,
2750 	     u_int, int, struct grid_cell *);
2751 void	 screen_clear_selection(struct screen *);
2752 void	 screen_hide_selection(struct screen *);
2753 int	 screen_check_selection(struct screen *, u_int, u_int);
2754 void	 screen_select_cell(struct screen *, struct grid_cell *,
2755 	     const struct grid_cell *);
2756 void	 screen_alternate_on(struct screen *, struct grid_cell *, int);
2757 void	 screen_alternate_off(struct screen *, struct grid_cell *, int);
2758 const char *screen_mode_to_string(int);
2759 
2760 /* window.c */
2761 extern struct windows windows;
2762 extern struct window_pane_tree all_window_panes;
2763 int		 window_cmp(struct window *, struct window *);
2764 RB_PROTOTYPE(windows, window, entry, window_cmp);
2765 int		 winlink_cmp(struct winlink *, struct winlink *);
2766 RB_PROTOTYPE(winlinks, winlink, entry, winlink_cmp);
2767 int		 window_pane_cmp(struct window_pane *, struct window_pane *);
2768 RB_PROTOTYPE(window_pane_tree, window_pane, tree_entry, window_pane_cmp);
2769 struct winlink	*winlink_find_by_index(struct winlinks *, int);
2770 struct winlink	*winlink_find_by_window(struct winlinks *, struct window *);
2771 struct winlink	*winlink_find_by_window_id(struct winlinks *, u_int);
2772 u_int		 winlink_count(struct winlinks *);
2773 struct winlink	*winlink_add(struct winlinks *, int);
2774 void		 winlink_set_window(struct winlink *, struct window *);
2775 void		 winlink_remove(struct winlinks *, struct winlink *);
2776 struct winlink	*winlink_next(struct winlink *);
2777 struct winlink	*winlink_previous(struct winlink *);
2778 struct winlink	*winlink_next_by_number(struct winlink *, struct session *,
2779 		     int);
2780 struct winlink	*winlink_previous_by_number(struct winlink *, struct session *,
2781 		     int);
2782 void		 winlink_stack_push(struct winlink_stack *, struct winlink *);
2783 void		 winlink_stack_remove(struct winlink_stack *, struct winlink *);
2784 struct window	*window_find_by_id_str(const char *);
2785 struct window	*window_find_by_id(u_int);
2786 void		 window_update_activity(struct window *);
2787 struct window	*window_create(u_int, u_int, u_int, u_int);
2788 void		 window_pane_set_event(struct window_pane *);
2789 struct window_pane *window_get_active_at(struct window *, u_int, u_int);
2790 struct window_pane *window_find_string(struct window *, const char *);
2791 int		 window_has_pane(struct window *, struct window_pane *);
2792 int		 window_set_active_pane(struct window *, struct window_pane *,
2793 		     int);
2794 void		 window_update_focus(struct window *);
2795 void		 window_pane_update_focus(struct window_pane *);
2796 void		 window_redraw_active_switch(struct window *,
2797 		     struct window_pane *);
2798 struct window_pane *window_add_pane(struct window *, struct window_pane *,
2799 		     u_int, int);
2800 void		 window_resize(struct window *, u_int, u_int, int, int);
2801 void		 window_pane_send_resize(struct window_pane *, u_int, u_int);
2802 int		 window_zoom(struct window_pane *);
2803 int		 window_unzoom(struct window *);
2804 int		 window_push_zoom(struct window *, int, int);
2805 int		 window_pop_zoom(struct window *);
2806 void		 window_lost_pane(struct window *, struct window_pane *);
2807 void		 window_remove_pane(struct window *, struct window_pane *);
2808 struct window_pane *window_pane_at_index(struct window *, u_int);
2809 struct window_pane *window_pane_next_by_number(struct window *,
2810 			struct window_pane *, u_int);
2811 struct window_pane *window_pane_previous_by_number(struct window *,
2812 			struct window_pane *, u_int);
2813 int		 window_pane_index(struct window_pane *, u_int *);
2814 u_int		 window_count_panes(struct window *);
2815 void		 window_destroy_panes(struct window *);
2816 struct window_pane *window_pane_find_by_id_str(const char *);
2817 struct window_pane *window_pane_find_by_id(u_int);
2818 int		 window_pane_destroy_ready(struct window_pane *);
2819 void		 window_pane_resize(struct window_pane *, u_int, u_int);
2820 int		 window_pane_set_mode(struct window_pane *,
2821 		     struct window_pane *, const struct window_mode *,
2822 		     struct cmd_find_state *, struct args *);
2823 void		 window_pane_reset_mode(struct window_pane *);
2824 void		 window_pane_reset_mode_all(struct window_pane *);
2825 int		 window_pane_key(struct window_pane *, struct client *,
2826 		     struct session *, struct winlink *, key_code,
2827 		     struct mouse_event *);
2828 int		 window_pane_visible(struct window_pane *);
2829 u_int		 window_pane_search(struct window_pane *, const char *, int,
2830 		     int);
2831 const char	*window_printable_flags(struct winlink *, int);
2832 struct window_pane *window_pane_find_up(struct window_pane *);
2833 struct window_pane *window_pane_find_down(struct window_pane *);
2834 struct window_pane *window_pane_find_left(struct window_pane *);
2835 struct window_pane *window_pane_find_right(struct window_pane *);
2836 void		 window_set_name(struct window *, const char *);
2837 void		 window_add_ref(struct window *, const char *);
2838 void		 window_remove_ref(struct window *, const char *);
2839 void		 winlink_clear_flags(struct winlink *);
2840 int		 winlink_shuffle_up(struct session *, struct winlink *, int);
2841 int		 window_pane_start_input(struct window_pane *,
2842 		     struct cmdq_item *, char **);
2843 void		*window_pane_get_new_data(struct window_pane *,
2844 		     struct window_pane_offset *, size_t *);
2845 void		 window_pane_update_used_data(struct window_pane *,
2846 		     struct window_pane_offset *, size_t);
2847 
2848 /* layout.c */
2849 u_int		 layout_count_cells(struct layout_cell *);
2850 struct layout_cell *layout_create_cell(struct layout_cell *);
2851 void		 layout_free_cell(struct layout_cell *);
2852 void		 layout_print_cell(struct layout_cell *, const char *, u_int);
2853 void		 layout_destroy_cell(struct window *, struct layout_cell *,
2854 		     struct layout_cell **);
2855 void		 layout_resize_layout(struct window *, struct layout_cell *,
2856 		     enum layout_type, int, int);
2857 struct layout_cell *layout_search_by_border(struct layout_cell *, u_int, u_int);
2858 void		 layout_set_size(struct layout_cell *, u_int, u_int, u_int,
2859 		     u_int);
2860 void		 layout_make_leaf(struct layout_cell *, struct window_pane *);
2861 void		 layout_make_node(struct layout_cell *, enum layout_type);
2862 void		 layout_fix_offsets(struct window *);
2863 void		 layout_fix_panes(struct window *, struct window_pane *);
2864 void		 layout_resize_adjust(struct window *, struct layout_cell *,
2865 		     enum layout_type, int);
2866 void		 layout_init(struct window *, struct window_pane *);
2867 void		 layout_free(struct window *);
2868 void		 layout_resize(struct window *, u_int, u_int);
2869 void		 layout_resize_pane(struct window_pane *, enum layout_type,
2870 		     int, int);
2871 void		 layout_resize_pane_to(struct window_pane *, enum layout_type,
2872 		     u_int);
2873 void		 layout_assign_pane(struct layout_cell *, struct window_pane *,
2874 		     int);
2875 struct layout_cell *layout_split_pane(struct window_pane *, enum layout_type,
2876 		     int, int);
2877 void		 layout_close_pane(struct window_pane *);
2878 int		 layout_spread_cell(struct window *, struct layout_cell *);
2879 void		 layout_spread_out(struct window_pane *);
2880 
2881 /* layout-custom.c */
2882 char		*layout_dump(struct layout_cell *);
2883 int		 layout_parse(struct window *, const char *);
2884 
2885 /* layout-set.c */
2886 int		 layout_set_lookup(const char *);
2887 u_int		 layout_set_select(struct window *, u_int);
2888 u_int		 layout_set_next(struct window *);
2889 u_int		 layout_set_previous(struct window *);
2890 
2891 /* mode-tree.c */
2892 typedef void (*mode_tree_build_cb)(void *, struct mode_tree_sort_criteria *,
2893 				   uint64_t *, const char *);
2894 typedef void (*mode_tree_draw_cb)(void *, void *, struct screen_write_ctx *,
2895 	     u_int, u_int);
2896 typedef int (*mode_tree_search_cb)(void *, void *, const char *);
2897 typedef void (*mode_tree_menu_cb)(void *, struct client *, key_code);
2898 typedef u_int (*mode_tree_height_cb)(void *, u_int);
2899 typedef key_code (*mode_tree_key_cb)(void *, void *, u_int);
2900 typedef void (*mode_tree_each_cb)(void *, void *, struct client *, key_code);
2901 u_int	 mode_tree_count_tagged(struct mode_tree_data *);
2902 void	*mode_tree_get_current(struct mode_tree_data *);
2903 const char *mode_tree_get_current_name(struct mode_tree_data *);
2904 void	 mode_tree_expand_current(struct mode_tree_data *);
2905 void	 mode_tree_collapse_current(struct mode_tree_data *);
2906 void	 mode_tree_expand(struct mode_tree_data *, uint64_t);
2907 int	 mode_tree_set_current(struct mode_tree_data *, uint64_t);
2908 void	 mode_tree_each_tagged(struct mode_tree_data *, mode_tree_each_cb,
2909 	     struct client *, key_code, int);
2910 void	 mode_tree_up(struct mode_tree_data *, int);
2911 void	 mode_tree_down(struct mode_tree_data *, int);
2912 struct mode_tree_data *mode_tree_start(struct window_pane *, struct args *,
2913 	     mode_tree_build_cb, mode_tree_draw_cb, mode_tree_search_cb,
2914 	     mode_tree_menu_cb, mode_tree_height_cb, mode_tree_key_cb, void *,
2915 	     const struct menu_item *, const char **, u_int, struct screen **);
2916 void	 mode_tree_zoom(struct mode_tree_data *, struct args *);
2917 void	 mode_tree_build(struct mode_tree_data *);
2918 void	 mode_tree_free(struct mode_tree_data *);
2919 void	 mode_tree_resize(struct mode_tree_data *, u_int, u_int);
2920 struct mode_tree_item *mode_tree_add(struct mode_tree_data *,
2921 	     struct mode_tree_item *, void *, uint64_t, const char *,
2922 	     const char *, int);
2923 void	 mode_tree_draw_as_parent(struct mode_tree_item *);
2924 void	 mode_tree_no_tag(struct mode_tree_item *);
2925 void	 mode_tree_remove(struct mode_tree_data *, struct mode_tree_item *);
2926 void	 mode_tree_draw(struct mode_tree_data *);
2927 int	 mode_tree_key(struct mode_tree_data *, struct client *, key_code *,
2928 	     struct mouse_event *, u_int *, u_int *);
2929 void	 mode_tree_run_command(struct client *, struct cmd_find_state *,
2930 	     const char *, const char *);
2931 
2932 /* window-buffer.c */
2933 extern const struct window_mode window_buffer_mode;
2934 
2935 /* window-tree.c */
2936 extern const struct window_mode window_tree_mode;
2937 
2938 /* window-clock.c */
2939 extern const struct window_mode window_clock_mode;
2940 extern const char window_clock_table[14][5][5];
2941 
2942 /* window-client.c */
2943 extern const struct window_mode window_client_mode;
2944 
2945 /* window-copy.c */
2946 extern const struct window_mode window_copy_mode;
2947 extern const struct window_mode window_view_mode;
2948 void printflike(2, 3) window_copy_add(struct window_pane *, const char *, ...);
2949 void printflike(2, 0) window_copy_vadd(struct window_pane *, const char *,
2950 		     va_list);
2951 void		 window_copy_pageup(struct window_pane *, int);
2952 void		 window_copy_start_drag(struct client *, struct mouse_event *);
2953 char		*window_copy_get_word(struct window_pane *, u_int, u_int);
2954 char		*window_copy_get_line(struct window_pane *, u_int);
2955 
2956 /* window-option.c */
2957 extern const struct window_mode window_customize_mode;
2958 
2959 /* names.c */
2960 void	 check_window_name(struct window *);
2961 char	*default_window_name(struct window *);
2962 char	*parse_window_name(const char *);
2963 
2964 /* control.c */
2965 void	control_discard(struct client *);
2966 void	control_start(struct client *);
2967 void	control_stop(struct client *);
2968 void	control_set_pane_on(struct client *, struct window_pane *);
2969 void	control_set_pane_off(struct client *, struct window_pane *);
2970 void	control_continue_pane(struct client *, struct window_pane *);
2971 void	control_pause_pane(struct client *, struct window_pane *);
2972 struct window_pane_offset *control_pane_offset(struct client *,
2973 	   struct window_pane *, int *);
2974 void	control_reset_offsets(struct client *);
2975 void printflike(2, 3) control_write(struct client *, const char *, ...);
2976 void	control_write_output(struct client *, struct window_pane *);
2977 int	control_all_done(struct client *);
2978 void	control_add_sub(struct client *, const char *, enum control_sub_type,
2979     	   int, const char *);
2980 void	control_remove_sub(struct client *, const char *);
2981 
2982 /* control-notify.c */
2983 void	control_notify_input(struct client *, struct window_pane *,
2984 	    const u_char *, size_t);
2985 void	control_notify_pane_mode_changed(int);
2986 void	control_notify_window_layout_changed(struct window *);
2987 void	control_notify_window_pane_changed(struct window *);
2988 void	control_notify_window_unlinked(struct session *, struct window *);
2989 void	control_notify_window_linked(struct session *, struct window *);
2990 void	control_notify_window_renamed(struct window *);
2991 void	control_notify_client_session_changed(struct client *);
2992 void	control_notify_client_detached(struct client *);
2993 void	control_notify_session_renamed(struct session *);
2994 void	control_notify_session_created(struct session *);
2995 void	control_notify_session_closed(struct session *);
2996 void	control_notify_session_window_changed(struct session *);
2997 
2998 /* session.c */
2999 extern struct sessions sessions;
3000 int	session_cmp(struct session *, struct session *);
3001 RB_PROTOTYPE(sessions, session, entry, session_cmp);
3002 int		 session_alive(struct session *);
3003 struct session	*session_find(const char *);
3004 struct session	*session_find_by_id_str(const char *);
3005 struct session	*session_find_by_id(u_int);
3006 struct session	*session_create(const char *, const char *, const char *,
3007 		     struct environ *, struct options *, struct termios *);
3008 void		 session_destroy(struct session *, int,	 const char *);
3009 void		 session_add_ref(struct session *, const char *);
3010 void		 session_remove_ref(struct session *, const char *);
3011 char		*session_check_name(const char *);
3012 void		 session_update_activity(struct session *, struct timeval *);
3013 struct session	*session_next_session(struct session *);
3014 struct session	*session_previous_session(struct session *);
3015 struct winlink	*session_new(struct session *, const char *, int, char **,
3016 		     const char *, const char *, int, char **);
3017 struct winlink	*session_attach(struct session *, struct window *, int,
3018 		     char **);
3019 int		 session_detach(struct session *, struct winlink *);
3020 int		 session_has(struct session *, struct window *);
3021 int		 session_is_linked(struct session *, struct window *);
3022 int		 session_next(struct session *, int);
3023 int		 session_previous(struct session *, int);
3024 int		 session_select(struct session *, int);
3025 int		 session_last(struct session *);
3026 int		 session_set_current(struct session *, struct winlink *);
3027 struct session_group *session_group_contains(struct session *);
3028 struct session_group *session_group_find(const char *);
3029 struct session_group *session_group_new(const char *);
3030 void		 session_group_add(struct session_group *, struct session *);
3031 void		 session_group_synchronize_to(struct session *);
3032 void		 session_group_synchronize_from(struct session *);
3033 u_int		 session_group_count(struct session_group *);
3034 u_int		 session_group_attached_count(struct session_group *);
3035 void		 session_renumber_windows(struct session *);
3036 
3037 /* utf8.c */
3038 utf8_char	 utf8_build_one(u_char);
3039 enum utf8_state	 utf8_from_data(const struct utf8_data *, utf8_char *);
3040 void		 utf8_to_data(utf8_char, struct utf8_data *);
3041 void		 utf8_set(struct utf8_data *, u_char);
3042 void		 utf8_copy(struct utf8_data *, const struct utf8_data *);
3043 enum utf8_state	 utf8_open(struct utf8_data *, u_char);
3044 enum utf8_state	 utf8_append(struct utf8_data *, u_char);
3045 int		 utf8_isvalid(const char *);
3046 int		 utf8_strvis(char *, const char *, size_t, int);
3047 int		 utf8_stravis(char **, const char *, int);
3048 int		 utf8_stravisx(char **, const char *, size_t, int);
3049 char		*utf8_sanitize(const char *);
3050 size_t		 utf8_strlen(const struct utf8_data *);
3051 u_int		 utf8_strwidth(const struct utf8_data *, ssize_t);
3052 struct utf8_data *utf8_fromcstr(const char *);
3053 char		*utf8_tocstr(struct utf8_data *);
3054 u_int		 utf8_cstrwidth(const char *);
3055 char		*utf8_padcstr(const char *, u_int);
3056 char		*utf8_rpadcstr(const char *, u_int);
3057 int		 utf8_cstrhas(const char *, const struct utf8_data *);
3058 
3059 /* procname.c */
3060 char   *get_proc_name(int, char *);
3061 char   *get_proc_cwd(int);
3062 
3063 /* log.c */
3064 void	log_add_level(void);
3065 int	log_get_level(void);
3066 void	log_open(const char *);
3067 void	log_toggle(const char *);
3068 void	log_close(void);
3069 void printflike(1, 2) log_debug(const char *, ...);
3070 __dead void printflike(1, 2) fatal(const char *, ...);
3071 __dead void printflike(1, 2) fatalx(const char *, ...);
3072 
3073 /* menu.c */
3074 #define MENU_NOMOUSE 0x1
3075 #define MENU_TAB 0x2
3076 #define MENU_STAYOPEN 0x4
3077 struct menu	*menu_create(const char *);
3078 void		 menu_add_items(struct menu *, const struct menu_item *,
3079 		    struct cmdq_item *, struct client *,
3080 		    struct cmd_find_state *);
3081 void		 menu_add_item(struct menu *, const struct menu_item *,
3082 		    struct cmdq_item *, struct client *,
3083 		    struct cmd_find_state *);
3084 void		 menu_free(struct menu *);
3085 struct menu_data *menu_prepare(struct menu *, int, struct cmdq_item *, u_int,
3086 		    u_int, struct client *, struct cmd_find_state *,
3087 		    menu_choice_cb, void *);
3088 int		 menu_display(struct menu *, int, struct cmdq_item *, u_int,
3089 		    u_int, struct client *, struct cmd_find_state *,
3090 		    menu_choice_cb, void *);
3091 struct screen	*menu_mode_cb(struct client *, void *, u_int *, u_int *);
3092 int		 menu_check_cb(struct client *, void *, u_int, u_int);
3093 void		 menu_draw_cb(struct client *, void *,
3094 		    struct screen_redraw_ctx *);
3095 void		 menu_free_cb(struct client *, void *);
3096 int		 menu_key_cb(struct client *, void *, struct key_event *);
3097 
3098 /* popup.c */
3099 #define POPUP_CLOSEEXIT 0x1
3100 #define POPUP_CLOSEEXITZERO 0x2
3101 #define POPUP_NOBORDER 0x4
3102 #define POPUP_INTERNAL 0x8
3103 typedef void (*popup_close_cb)(int, void *);
3104 typedef void (*popup_finish_edit_cb)(char *, size_t, void *);
3105 int		 popup_display(int, struct cmdq_item *, u_int, u_int, u_int,
3106 		    u_int, const char *, int, char **, const char *,
3107 		    struct client *, struct session *, popup_close_cb, void *);
3108 int		 popup_editor(struct client *, const char *, size_t,
3109 		    popup_finish_edit_cb, void *);
3110 
3111 /* style.c */
3112 int		 style_parse(struct style *,const struct grid_cell *,
3113 		     const char *);
3114 const char	*style_tostring(struct style *);
3115 void		 style_add(struct grid_cell *, struct options *,
3116 		     const char *, struct format_tree *);
3117 void		 style_apply(struct grid_cell *, struct options *,
3118 		     const char *, struct format_tree *);
3119 void		 style_set(struct style *, const struct grid_cell *);
3120 void		 style_copy(struct style *, struct style *);
3121 
3122 /* spawn.c */
3123 struct winlink	*spawn_window(struct spawn_context *, char **);
3124 struct window_pane *spawn_pane(struct spawn_context *, char **);
3125 
3126 /* regsub.c */
3127 char		*regsub(const char *, const char *, const char *, int);
3128 
3129 #endif /* TMUX_H */
3130