xref: /netbsd-src/external/bsd/tmux/dist/tmux.h (revision ccd9df534e375a4366c5b55f23782053c7a98d82)
1 /* $OpenBSD$ */
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/uio.h>
24 
25 #include <limits.h>
26 #include <stdarg.h>
27 #include <stdio.h>
28 #include <termios.h>
29 #include <wchar.h>
30 
31 #ifdef HAVE_UTEMPTER
32 #include <utempter.h>
33 #endif
34 
35 #include "compat.h"
36 #include "tmux-protocol.h"
37 #include "xmalloc.h"
38 
39 extern char   **environ;
40 
41 struct args;
42 struct args_command_state;
43 struct client;
44 struct cmd;
45 struct cmd_find_state;
46 struct cmdq_item;
47 struct cmdq_list;
48 struct cmdq_state;
49 struct cmds;
50 struct control_state;
51 struct environ;
52 struct format_job_tree;
53 struct format_tree;
54 struct hyperlinks_uri;
55 struct hyperlinks;
56 struct input_ctx;
57 struct job;
58 struct menu_data;
59 struct mode_tree_data;
60 struct mouse_event;
61 struct options;
62 struct options_array_item;
63 struct options_entry;
64 struct screen_write_citem;
65 struct screen_write_cline;
66 struct screen_write_ctx;
67 struct session;
68 
69 #ifdef ENABLE_SIXEL
70 struct sixel_image;
71 #endif
72 
73 struct tty_ctx;
74 struct tty_code;
75 struct tty_key;
76 struct tmuxpeer;
77 struct tmuxproc;
78 struct winlink;
79 
80 /* Default configuration files and socket paths. */
81 #ifndef TMUX_CONF
82 #define TMUX_CONF "/etc/tmux.conf:~/.tmux.conf"
83 #endif
84 #ifndef TMUX_SOCK
85 #define TMUX_SOCK "$TMUX_TMPDIR:" _PATH_TMP
86 #endif
87 #ifndef TMUX_TERM
88 #define TMUX_TERM "screen"
89 #endif
90 #ifndef TMUX_LOCK_CMD
91 #define TMUX_LOCK_CMD "lock -np"
92 #endif
93 
94 /* Minimum layout cell size, NOT including border lines. */
95 #define PANE_MINIMUM 1
96 
97 /* Minimum and maximum window size. */
98 #define WINDOW_MINIMUM PANE_MINIMUM
99 #define WINDOW_MAXIMUM 10000
100 
101 /* Automatic name refresh interval, in microseconds. Must be < 1 second. */
102 #define NAME_INTERVAL 500000
103 
104 /* Default pixel cell sizes. */
105 #define DEFAULT_XPIXEL 16
106 #define DEFAULT_YPIXEL 32
107 
108 /* Attribute to make GCC check printf-like arguments. */
109 #define printflike(a, b) __attribute__ ((format (printf, a, b)))
110 
111 /* Number of items in array. */
112 #ifndef nitems
113 #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
114 #endif
115 
116 /* Alert option values. */
117 #define ALERT_NONE 0
118 #define ALERT_ANY 1
119 #define ALERT_CURRENT 2
120 #define ALERT_OTHER 3
121 
122 /* Visual option values. */
123 #define VISUAL_OFF 0
124 #define VISUAL_ON 1
125 #define VISUAL_BOTH 2
126 
127 /* No key or unknown key. */
128 #define KEYC_NONE            0x000ff000000000ULL
129 #define KEYC_UNKNOWN         0x000fe000000000ULL
130 
131 /*
132  * Base for special (that is, not Unicode) keys. An enum must be at most a
133  * signed int, so these are based in the highest Unicode PUA.
134  */
135 #define KEYC_BASE            0x0000000010e000ULL
136 #define KEYC_USER            0x0000000010f000ULL
137 
138 /* Key modifier bits. */
139 #define KEYC_META            0x00100000000000ULL
140 #define KEYC_CTRL            0x00200000000000ULL
141 #define KEYC_SHIFT           0x00400000000000ULL
142 
143 /* Key flag bits. */
144 #define KEYC_LITERAL	     0x01000000000000ULL
145 #define KEYC_KEYPAD	     0x02000000000000ULL
146 #define KEYC_CURSOR	     0x04000000000000ULL
147 #define KEYC_IMPLIED_META    0x08000000000000ULL
148 #define KEYC_BUILD_MODIFIERS 0x10000000000000ULL
149 #define KEYC_VI		     0x20000000000000ULL
150 #define KEYC_EXTENDED	     0x40000000000000ULL
151 #define KEYC_SENT	     0x80000000000000ULL
152 
153 /* Masks for key bits. */
154 #define KEYC_MASK_MODIFIERS  0x00f00000000000ULL
155 #define KEYC_MASK_FLAGS      0xff000000000000ULL
156 #define KEYC_MASK_KEY        0x000fffffffffffULL
157 
158 /* Available user keys. */
159 #define KEYC_NUSER 1000
160 
161 /* Is this a mouse key? */
162 #define KEYC_IS_MOUSE(key) \
163 	(((key) & KEYC_MASK_KEY) >= KEYC_MOUSE && \
164 	 ((key) & KEYC_MASK_KEY) < KEYC_BSPACE)
165 
166 /* Is this a Unicode key? */
167 #define KEYC_IS_UNICODE(key) \
168 	(((key) & KEYC_MASK_KEY) > 0x7f && \
169 	 (((key) & KEYC_MASK_KEY) < KEYC_BASE || \
170 	  ((key) & KEYC_MASK_KEY) >= KEYC_BASE_END) && \
171 	 (((key) & KEYC_MASK_KEY) < KEYC_USER || \
172 	  ((key) & KEYC_MASK_KEY) >= KEYC_USER + KEYC_NUSER))
173 
174 /* Multiple click timeout. */
175 #define KEYC_CLICK_TIMEOUT 300
176 
177 /* Mouse key codes. */
178 #define KEYC_MOUSE_KEY(name)					\
179 	KEYC_ ## name ## _PANE,					\
180 	KEYC_ ## name ## _STATUS,				\
181 	KEYC_ ## name ## _STATUS_LEFT,				\
182 	KEYC_ ## name ## _STATUS_RIGHT,				\
183 	KEYC_ ## name ## _STATUS_DEFAULT,			\
184 	KEYC_ ## name ## _BORDER
185 #define KEYC_MOUSE_STRING(name, s)				\
186 	{ #s "Pane", KEYC_ ## name ## _PANE },			\
187 	{ #s "Status", KEYC_ ## name ## _STATUS },		\
188 	{ #s "StatusLeft", KEYC_ ## name ## _STATUS_LEFT },	\
189 	{ #s "StatusRight", KEYC_ ## name ## _STATUS_RIGHT },	\
190 	{ #s "StatusDefault", KEYC_ ## name ## _STATUS_DEFAULT }, \
191 	{ #s "Border", KEYC_ ## name ## _BORDER }
192 
193 /*
194  * A single key. This can be ASCII or Unicode or one of the keys between
195  * KEYC_BASE and KEYC_BASE_END.
196  */
197 typedef unsigned long long key_code;
198 
199 /* Special key codes. */
200 enum {
201 	/* Focus events. */
202 	KEYC_FOCUS_IN = KEYC_BASE,
203 	KEYC_FOCUS_OUT,
204 
205 	/* "Any" key, used if not found in key table. */
206 	KEYC_ANY,
207 
208 	/* Paste brackets. */
209 	KEYC_PASTE_START,
210 	KEYC_PASTE_END,
211 
212 	/* Mouse keys. */
213 	KEYC_MOUSE, /* unclassified mouse event */
214 	KEYC_DRAGGING, /* dragging in progress */
215 	KEYC_DOUBLECLICK, /* double click complete */
216 	KEYC_MOUSE_KEY(MOUSEMOVE),
217 	KEYC_MOUSE_KEY(MOUSEDOWN1),
218 	KEYC_MOUSE_KEY(MOUSEDOWN2),
219 	KEYC_MOUSE_KEY(MOUSEDOWN3),
220 	KEYC_MOUSE_KEY(MOUSEDOWN6),
221 	KEYC_MOUSE_KEY(MOUSEDOWN7),
222 	KEYC_MOUSE_KEY(MOUSEDOWN8),
223 	KEYC_MOUSE_KEY(MOUSEDOWN9),
224 	KEYC_MOUSE_KEY(MOUSEDOWN10),
225 	KEYC_MOUSE_KEY(MOUSEDOWN11),
226 	KEYC_MOUSE_KEY(MOUSEUP1),
227 	KEYC_MOUSE_KEY(MOUSEUP2),
228 	KEYC_MOUSE_KEY(MOUSEUP3),
229 	KEYC_MOUSE_KEY(MOUSEUP6),
230 	KEYC_MOUSE_KEY(MOUSEUP7),
231 	KEYC_MOUSE_KEY(MOUSEUP8),
232 	KEYC_MOUSE_KEY(MOUSEUP9),
233 	KEYC_MOUSE_KEY(MOUSEUP10),
234 	KEYC_MOUSE_KEY(MOUSEUP11),
235 	KEYC_MOUSE_KEY(MOUSEDRAG1),
236 	KEYC_MOUSE_KEY(MOUSEDRAG2),
237 	KEYC_MOUSE_KEY(MOUSEDRAG3),
238 	KEYC_MOUSE_KEY(MOUSEDRAG6),
239 	KEYC_MOUSE_KEY(MOUSEDRAG7),
240 	KEYC_MOUSE_KEY(MOUSEDRAG8),
241 	KEYC_MOUSE_KEY(MOUSEDRAG9),
242 	KEYC_MOUSE_KEY(MOUSEDRAG10),
243 	KEYC_MOUSE_KEY(MOUSEDRAG11),
244 	KEYC_MOUSE_KEY(MOUSEDRAGEND1),
245 	KEYC_MOUSE_KEY(MOUSEDRAGEND2),
246 	KEYC_MOUSE_KEY(MOUSEDRAGEND3),
247 	KEYC_MOUSE_KEY(MOUSEDRAGEND6),
248 	KEYC_MOUSE_KEY(MOUSEDRAGEND7),
249 	KEYC_MOUSE_KEY(MOUSEDRAGEND8),
250 	KEYC_MOUSE_KEY(MOUSEDRAGEND9),
251 	KEYC_MOUSE_KEY(MOUSEDRAGEND10),
252 	KEYC_MOUSE_KEY(MOUSEDRAGEND11),
253 	KEYC_MOUSE_KEY(WHEELUP),
254 	KEYC_MOUSE_KEY(WHEELDOWN),
255 	KEYC_MOUSE_KEY(SECONDCLICK1),
256 	KEYC_MOUSE_KEY(SECONDCLICK2),
257 	KEYC_MOUSE_KEY(SECONDCLICK3),
258 	KEYC_MOUSE_KEY(SECONDCLICK6),
259 	KEYC_MOUSE_KEY(SECONDCLICK7),
260 	KEYC_MOUSE_KEY(SECONDCLICK8),
261 	KEYC_MOUSE_KEY(SECONDCLICK9),
262 	KEYC_MOUSE_KEY(SECONDCLICK10),
263 	KEYC_MOUSE_KEY(SECONDCLICK11),
264 	KEYC_MOUSE_KEY(DOUBLECLICK1),
265 	KEYC_MOUSE_KEY(DOUBLECLICK2),
266 	KEYC_MOUSE_KEY(DOUBLECLICK3),
267 	KEYC_MOUSE_KEY(DOUBLECLICK6),
268 	KEYC_MOUSE_KEY(DOUBLECLICK7),
269 	KEYC_MOUSE_KEY(DOUBLECLICK8),
270 	KEYC_MOUSE_KEY(DOUBLECLICK9),
271 	KEYC_MOUSE_KEY(DOUBLECLICK10),
272 	KEYC_MOUSE_KEY(DOUBLECLICK11),
273 	KEYC_MOUSE_KEY(TRIPLECLICK1),
274 	KEYC_MOUSE_KEY(TRIPLECLICK2),
275 	KEYC_MOUSE_KEY(TRIPLECLICK3),
276 	KEYC_MOUSE_KEY(TRIPLECLICK6),
277 	KEYC_MOUSE_KEY(TRIPLECLICK7),
278 	KEYC_MOUSE_KEY(TRIPLECLICK8),
279 	KEYC_MOUSE_KEY(TRIPLECLICK9),
280 	KEYC_MOUSE_KEY(TRIPLECLICK10),
281 	KEYC_MOUSE_KEY(TRIPLECLICK11),
282 
283 	/* Backspace key. */
284 	KEYC_BSPACE,
285 
286 	/* Function keys. */
287 	KEYC_F1,
288 	KEYC_F2,
289 	KEYC_F3,
290 	KEYC_F4,
291 	KEYC_F5,
292 	KEYC_F6,
293 	KEYC_F7,
294 	KEYC_F8,
295 	KEYC_F9,
296 	KEYC_F10,
297 	KEYC_F11,
298 	KEYC_F12,
299 	KEYC_IC,
300 	KEYC_DC,
301 	KEYC_HOME,
302 	KEYC_END,
303 	KEYC_NPAGE,
304 	KEYC_PPAGE,
305 	KEYC_BTAB,
306 
307 	/* Arrow keys. */
308 	KEYC_UP,
309 	KEYC_DOWN,
310 	KEYC_LEFT,
311 	KEYC_RIGHT,
312 
313 	/* Numeric keypad. */
314 	KEYC_KP_SLASH,
315 	KEYC_KP_STAR,
316 	KEYC_KP_MINUS,
317 	KEYC_KP_SEVEN,
318 	KEYC_KP_EIGHT,
319 	KEYC_KP_NINE,
320 	KEYC_KP_PLUS,
321 	KEYC_KP_FOUR,
322 	KEYC_KP_FIVE,
323 	KEYC_KP_SIX,
324 	KEYC_KP_ONE,
325 	KEYC_KP_TWO,
326 	KEYC_KP_THREE,
327 	KEYC_KP_ENTER,
328 	KEYC_KP_ZERO,
329 	KEYC_KP_PERIOD,
330 
331 	/* End of special keys. */
332 	KEYC_BASE_END
333 };
334 
335 /* Termcap codes. */
336 enum tty_code_code {
337 	TTYC_ACSC,
338 	TTYC_AM,
339 	TTYC_AX,
340 	TTYC_BCE,
341 	TTYC_BEL,
342 	TTYC_BIDI,
343 	TTYC_BLINK,
344 	TTYC_BOLD,
345 	TTYC_CIVIS,
346 	TTYC_CLEAR,
347 	TTYC_CLMG,
348 	TTYC_CMG,
349 	TTYC_CNORM,
350 	TTYC_COLORS,
351 	TTYC_CR,
352 	TTYC_CS,
353 	TTYC_CSR,
354 	TTYC_CUB,
355 	TTYC_CUB1,
356 	TTYC_CUD,
357 	TTYC_CUD1,
358 	TTYC_CUF,
359 	TTYC_CUF1,
360 	TTYC_CUP,
361 	TTYC_CUU,
362 	TTYC_CUU1,
363 	TTYC_CVVIS,
364 	TTYC_DCH,
365 	TTYC_DCH1,
366 	TTYC_DIM,
367 	TTYC_DL,
368 	TTYC_DL1,
369 	TTYC_DSBP,
370 	TTYC_DSEKS,
371 	TTYC_DSFCS,
372 	TTYC_DSMG,
373 	TTYC_E3,
374 	TTYC_ECH,
375 	TTYC_ED,
376 	TTYC_EL,
377 	TTYC_EL1,
378 	TTYC_ENACS,
379 	TTYC_ENBP,
380 	TTYC_ENEKS,
381 	TTYC_ENFCS,
382 	TTYC_ENMG,
383 	TTYC_FSL,
384 	TTYC_HLS,
385 	TTYC_HOME,
386 	TTYC_HPA,
387 	TTYC_ICH,
388 	TTYC_ICH1,
389 	TTYC_IL,
390 	TTYC_IL1,
391 	TTYC_INDN,
392 	TTYC_INVIS,
393 	TTYC_KCBT,
394 	TTYC_KCUB1,
395 	TTYC_KCUD1,
396 	TTYC_KCUF1,
397 	TTYC_KCUU1,
398 	TTYC_KDC2,
399 	TTYC_KDC3,
400 	TTYC_KDC4,
401 	TTYC_KDC5,
402 	TTYC_KDC6,
403 	TTYC_KDC7,
404 	TTYC_KDCH1,
405 	TTYC_KDN2,
406 	TTYC_KDN3,
407 	TTYC_KDN4,
408 	TTYC_KDN5,
409 	TTYC_KDN6,
410 	TTYC_KDN7,
411 	TTYC_KEND,
412 	TTYC_KEND2,
413 	TTYC_KEND3,
414 	TTYC_KEND4,
415 	TTYC_KEND5,
416 	TTYC_KEND6,
417 	TTYC_KEND7,
418 	TTYC_KF1,
419 	TTYC_KF10,
420 	TTYC_KF11,
421 	TTYC_KF12,
422 	TTYC_KF13,
423 	TTYC_KF14,
424 	TTYC_KF15,
425 	TTYC_KF16,
426 	TTYC_KF17,
427 	TTYC_KF18,
428 	TTYC_KF19,
429 	TTYC_KF2,
430 	TTYC_KF20,
431 	TTYC_KF21,
432 	TTYC_KF22,
433 	TTYC_KF23,
434 	TTYC_KF24,
435 	TTYC_KF25,
436 	TTYC_KF26,
437 	TTYC_KF27,
438 	TTYC_KF28,
439 	TTYC_KF29,
440 	TTYC_KF3,
441 	TTYC_KF30,
442 	TTYC_KF31,
443 	TTYC_KF32,
444 	TTYC_KF33,
445 	TTYC_KF34,
446 	TTYC_KF35,
447 	TTYC_KF36,
448 	TTYC_KF37,
449 	TTYC_KF38,
450 	TTYC_KF39,
451 	TTYC_KF4,
452 	TTYC_KF40,
453 	TTYC_KF41,
454 	TTYC_KF42,
455 	TTYC_KF43,
456 	TTYC_KF44,
457 	TTYC_KF45,
458 	TTYC_KF46,
459 	TTYC_KF47,
460 	TTYC_KF48,
461 	TTYC_KF49,
462 	TTYC_KF5,
463 	TTYC_KF50,
464 	TTYC_KF51,
465 	TTYC_KF52,
466 	TTYC_KF53,
467 	TTYC_KF54,
468 	TTYC_KF55,
469 	TTYC_KF56,
470 	TTYC_KF57,
471 	TTYC_KF58,
472 	TTYC_KF59,
473 	TTYC_KF6,
474 	TTYC_KF60,
475 	TTYC_KF61,
476 	TTYC_KF62,
477 	TTYC_KF63,
478 	TTYC_KF7,
479 	TTYC_KF8,
480 	TTYC_KF9,
481 	TTYC_KHOM2,
482 	TTYC_KHOM3,
483 	TTYC_KHOM4,
484 	TTYC_KHOM5,
485 	TTYC_KHOM6,
486 	TTYC_KHOM7,
487 	TTYC_KHOME,
488 	TTYC_KIC2,
489 	TTYC_KIC3,
490 	TTYC_KIC4,
491 	TTYC_KIC5,
492 	TTYC_KIC6,
493 	TTYC_KIC7,
494 	TTYC_KICH1,
495 	TTYC_KIND,
496 	TTYC_KLFT2,
497 	TTYC_KLFT3,
498 	TTYC_KLFT4,
499 	TTYC_KLFT5,
500 	TTYC_KLFT6,
501 	TTYC_KLFT7,
502 	TTYC_KMOUS,
503 	TTYC_KNP,
504 	TTYC_KNXT2,
505 	TTYC_KNXT3,
506 	TTYC_KNXT4,
507 	TTYC_KNXT5,
508 	TTYC_KNXT6,
509 	TTYC_KNXT7,
510 	TTYC_KPP,
511 	TTYC_KPRV2,
512 	TTYC_KPRV3,
513 	TTYC_KPRV4,
514 	TTYC_KPRV5,
515 	TTYC_KPRV6,
516 	TTYC_KPRV7,
517 	TTYC_KRI,
518 	TTYC_KRIT2,
519 	TTYC_KRIT3,
520 	TTYC_KRIT4,
521 	TTYC_KRIT5,
522 	TTYC_KRIT6,
523 	TTYC_KRIT7,
524 	TTYC_KUP2,
525 	TTYC_KUP3,
526 	TTYC_KUP4,
527 	TTYC_KUP5,
528 	TTYC_KUP6,
529 	TTYC_KUP7,
530 	TTYC_MS,
531 	TTYC_NOBR,
532 	TTYC_OL,
533 	TTYC_OP,
534 	TTYC_RECT,
535 	TTYC_REV,
536 	TTYC_RGB,
537 	TTYC_RI,
538 	TTYC_RIN,
539 	TTYC_RMACS,
540 	TTYC_RMCUP,
541 	TTYC_RMKX,
542 	TTYC_SE,
543 	TTYC_SETAB,
544 	TTYC_SETAF,
545 	TTYC_SETAL,
546 	TTYC_SETRGBB,
547 	TTYC_SETRGBF,
548 	TTYC_SETULC,
549 	TTYC_SETULC1,
550 	TTYC_SGR0,
551 	TTYC_SITM,
552 	TTYC_SMACS,
553 	TTYC_SMCUP,
554 	TTYC_SMKX,
555 	TTYC_SMOL,
556 	TTYC_SMSO,
557 	TTYC_SMUL,
558 	TTYC_SMULX,
559 	TTYC_SMXX,
560 	TTYC_SXL,
561 	TTYC_SS,
562 	TTYC_SWD,
563 	TTYC_SYNC,
564 	TTYC_TC,
565 	TTYC_TSL,
566 	TTYC_U8,
567 	TTYC_VPA,
568 	TTYC_XT
569 };
570 
571 /* Character classes. */
572 #define WHITESPACE " "
573 
574 /* Mode keys. */
575 #define MODEKEY_EMACS 0
576 #define MODEKEY_VI 1
577 
578 /* Modes. */
579 #define MODE_CURSOR 0x1
580 #define MODE_INSERT 0x2
581 #define MODE_KCURSOR 0x4
582 #define MODE_KKEYPAD 0x8
583 #define MODE_WRAP 0x10
584 #define MODE_MOUSE_STANDARD 0x20
585 #define MODE_MOUSE_BUTTON 0x40
586 #define MODE_CURSOR_BLINKING 0x80
587 #define MODE_MOUSE_UTF8 0x100
588 #define MODE_MOUSE_SGR 0x200
589 #define MODE_BRACKETPASTE 0x400
590 #define MODE_FOCUSON 0x800
591 #define MODE_MOUSE_ALL 0x1000
592 #define MODE_ORIGIN 0x2000
593 #define MODE_CRLF 0x4000
594 #define MODE_KEXTENDED 0x8000
595 #define MODE_CURSOR_VERY_VISIBLE 0x10000
596 #define MODE_CURSOR_BLINKING_SET 0x20000
597 
598 #define ALL_MODES 0xffffff
599 #define ALL_MOUSE_MODES (MODE_MOUSE_STANDARD|MODE_MOUSE_BUTTON|MODE_MOUSE_ALL)
600 #define MOTION_MOUSE_MODES (MODE_MOUSE_BUTTON|MODE_MOUSE_ALL)
601 #define CURSOR_MODES (MODE_CURSOR|MODE_CURSOR_BLINKING|MODE_CURSOR_VERY_VISIBLE)
602 
603 /* Mouse protocol constants. */
604 #define MOUSE_PARAM_MAX 0xff
605 #define MOUSE_PARAM_UTF8_MAX 0x7ff
606 #define MOUSE_PARAM_BTN_OFF 0x20
607 #define MOUSE_PARAM_POS_OFF 0x21
608 
609 /* A single UTF-8 character. */
610 typedef u_int utf8_char;
611 
612 /*
613  * An expanded UTF-8 character. UTF8_SIZE must be big enough to hold combining
614  * characters as well. It can't be more than 32 bytes without changes to how
615  * characters are stored.
616  */
617 #define UTF8_SIZE 21
618 struct utf8_data {
619 	u_char	data[UTF8_SIZE];
620 
621 	u_char	have;
622 	u_char	size;
623 
624 	u_char	width;	/* 0xff if invalid */
625 };
626 enum utf8_state {
627 	UTF8_MORE,
628 	UTF8_DONE,
629 	UTF8_ERROR
630 };
631 
632 /* Colour flags. */
633 #define COLOUR_FLAG_256 0x01000000
634 #define COLOUR_FLAG_RGB 0x02000000
635 
636 /* Special colours. */
637 #define COLOUR_DEFAULT(c) ((c) == 8 || (c) == 9)
638 
639 /* Replacement palette. */
640 struct colour_palette {
641 	int	 fg;
642 	int	 bg;
643 
644 	int	*palette;
645 	int	*default_palette;
646 };
647 
648 /* Grid attributes. Anything above 0xff is stored in an extended cell. */
649 #define GRID_ATTR_BRIGHT 0x1
650 #define GRID_ATTR_DIM 0x2
651 #define GRID_ATTR_UNDERSCORE 0x4
652 #define GRID_ATTR_BLINK 0x8
653 #define GRID_ATTR_REVERSE 0x10
654 #define GRID_ATTR_HIDDEN 0x20
655 #define GRID_ATTR_ITALICS 0x40
656 #define GRID_ATTR_CHARSET 0x80	/* alternative character set */
657 #define GRID_ATTR_STRIKETHROUGH 0x100
658 #define GRID_ATTR_UNDERSCORE_2 0x200
659 #define GRID_ATTR_UNDERSCORE_3 0x400
660 #define GRID_ATTR_UNDERSCORE_4 0x800
661 #define GRID_ATTR_UNDERSCORE_5 0x1000
662 #define GRID_ATTR_OVERLINE 0x2000
663 
664 /* All underscore attributes. */
665 #define GRID_ATTR_ALL_UNDERSCORE \
666 	(GRID_ATTR_UNDERSCORE|	 \
667 	 GRID_ATTR_UNDERSCORE_2| \
668 	 GRID_ATTR_UNDERSCORE_3| \
669 	 GRID_ATTR_UNDERSCORE_4| \
670 	 GRID_ATTR_UNDERSCORE_5)
671 
672 /* Grid flags. */
673 #define GRID_FLAG_FG256 0x1
674 #define GRID_FLAG_BG256 0x2
675 #define GRID_FLAG_PADDING 0x4
676 #define GRID_FLAG_EXTENDED 0x8
677 #define GRID_FLAG_SELECTED 0x10
678 #define GRID_FLAG_NOPALETTE 0x20
679 #define GRID_FLAG_CLEARED 0x40
680 
681 /* Grid line flags. */
682 #define GRID_LINE_WRAPPED 0x1
683 #define GRID_LINE_EXTENDED 0x2
684 #define GRID_LINE_DEAD 0x4
685 #define GRID_LINE_START_PROMPT 0x8
686 #define GRID_LINE_START_OUTPUT 0x10
687 
688 /* Grid string flags. */
689 #define GRID_STRING_WITH_SEQUENCES 0x1
690 #define GRID_STRING_ESCAPE_SEQUENCES 0x2
691 #define GRID_STRING_TRIM_SPACES 0x4
692 #define GRID_STRING_USED_ONLY 0x8
693 #define GRID_STRING_EMPTY_CELLS 0x10
694 
695 /* Cell positions. */
696 #define CELL_INSIDE 0
697 #define CELL_TOPBOTTOM 1
698 #define CELL_LEFTRIGHT 2
699 #define CELL_TOPLEFT 3
700 #define CELL_TOPRIGHT 4
701 #define CELL_BOTTOMLEFT 5
702 #define CELL_BOTTOMRIGHT 6
703 #define CELL_TOPJOIN 7
704 #define CELL_BOTTOMJOIN 8
705 #define CELL_LEFTJOIN 9
706 #define CELL_RIGHTJOIN 10
707 #define CELL_JOIN 11
708 #define CELL_OUTSIDE 12
709 
710 /* Cell borders. */
711 #define CELL_BORDERS " xqlkmjwvtun~"
712 #define SIMPLE_BORDERS " |-+++++++++."
713 #define PADDED_BORDERS "             "
714 
715 /* Grid cell data. */
716 struct grid_cell {
717 	struct utf8_data	data;
718 	u_short			attr;
719 	u_char			flags;
720 	int			fg;
721 	int			bg;
722 	int			us;
723 	u_int			link;
724 };
725 
726 /* Grid extended cell entry. */
727 struct grid_extd_entry {
728 	utf8_char		data;
729 	u_short			attr;
730 	u_char			flags;
731 	int			fg;
732 	int			bg;
733 	int			us;
734 	u_int			link;
735 } __packed;
736 
737 /* Grid cell entry. */
738 struct grid_cell_entry {
739 	union {
740 		u_int		offset;
741 		struct {
742 			u_char	attr;
743 			u_char	fg;
744 			u_char	bg;
745 			u_char	data;
746 		} data;
747 	};
748 	u_char			flags;
749 } __packed;
750 
751 /* Grid line. */
752 struct grid_line {
753 	struct grid_cell_entry	*celldata;
754 	u_int			 cellused;
755 	u_int			 cellsize;
756 
757 	struct grid_extd_entry	*extddata;
758 	u_int			 extdsize;
759 
760 	int			 flags;
761 	time_t			 time;
762 };
763 
764 /* Entire grid of cells. */
765 struct grid {
766 	int			 flags;
767 #define GRID_HISTORY 0x1 /* scroll lines into history */
768 
769 	u_int			 sx;
770 	u_int			 sy;
771 
772 	u_int			 hscrolled;
773 	u_int			 hsize;
774 	u_int			 hlimit;
775 
776 	struct grid_line	*linedata;
777 };
778 
779 /* Virtual cursor in a grid. */
780 struct grid_reader {
781 	struct grid	*gd;
782 	u_int		 cx;
783 	u_int		 cy;
784 };
785 
786 /* Style alignment. */
787 enum style_align {
788 	STYLE_ALIGN_DEFAULT,
789 	STYLE_ALIGN_LEFT,
790 	STYLE_ALIGN_CENTRE,
791 	STYLE_ALIGN_RIGHT,
792 	STYLE_ALIGN_ABSOLUTE_CENTRE
793 };
794 
795 /* Style list. */
796 enum style_list {
797 	STYLE_LIST_OFF,
798 	STYLE_LIST_ON,
799 	STYLE_LIST_FOCUS,
800 	STYLE_LIST_LEFT_MARKER,
801 	STYLE_LIST_RIGHT_MARKER,
802 };
803 
804 /* Style range. */
805 enum style_range_type {
806 	STYLE_RANGE_NONE,
807 	STYLE_RANGE_LEFT,
808 	STYLE_RANGE_RIGHT,
809 	STYLE_RANGE_PANE,
810 	STYLE_RANGE_WINDOW,
811 	STYLE_RANGE_SESSION,
812 	STYLE_RANGE_USER
813 };
814 struct style_range {
815 	enum style_range_type	 type;
816 	u_int			 argument;
817 	char			 string[16];
818 
819 	u_int			 start;
820 	u_int			 end; /* not included */
821 
822 	TAILQ_ENTRY(style_range) entry;
823 };
824 TAILQ_HEAD(style_ranges, style_range);
825 
826 /* Style default. */
827 enum style_default_type {
828 	STYLE_DEFAULT_BASE,
829 	STYLE_DEFAULT_PUSH,
830 	STYLE_DEFAULT_POP
831 };
832 
833 /* Style option. */
834 struct style {
835 	struct grid_cell	gc;
836 	int			ignore;
837 
838 	int			fill;
839 	enum style_align	align;
840 	enum style_list		list;
841 
842 	enum style_range_type	range_type;
843 	u_int			range_argument;
844 	char			range_string[16];
845 
846 	enum style_default_type	default_type;
847 };
848 
849 #ifdef ENABLE_SIXEL
850 /* Image. */
851 struct image {
852 	struct screen		*s;
853 	struct sixel_image	*data;
854 	char			*fallback;
855 
856 	u_int			 px;
857 	u_int			 py;
858 	u_int			 sx;
859 	u_int			 sy;
860 
861 	TAILQ_ENTRY (image)	 all_entry;
862 	TAILQ_ENTRY (image)	 entry;
863 };
864 TAILQ_HEAD(images, image);
865 #endif
866 
867 /* Cursor style. */
868 enum screen_cursor_style {
869 	SCREEN_CURSOR_DEFAULT,
870 	SCREEN_CURSOR_BLOCK,
871 	SCREEN_CURSOR_UNDERLINE,
872 	SCREEN_CURSOR_BAR
873 };
874 
875 /* Virtual screen. */
876 struct screen_sel;
877 struct screen_titles;
878 struct screen {
879 	char				*title;
880 	char				*path;
881 	struct screen_titles		*titles;
882 
883 	struct grid			*grid;	  /* grid data */
884 
885 	u_int				 cx;	  /* cursor x */
886 	u_int				 cy;	  /* cursor y */
887 
888 	enum screen_cursor_style	 cstyle;  /* cursor style */
889 	enum screen_cursor_style	 default_cstyle;
890 	int				 ccolour; /* cursor colour */
891 	int				 default_ccolour;
892 
893 	u_int				 rupper;  /* scroll region top */
894 	u_int				 rlower;  /* scroll region bottom */
895 
896 	int				 mode;
897 	int				 default_mode;
898 
899 	u_int				 saved_cx;
900 	u_int				 saved_cy;
901 	struct grid			*saved_grid;
902 	struct grid_cell		 saved_cell;
903 	int				 saved_flags;
904 
905 	bitstr_t			*tabs;
906 	struct screen_sel		*sel;
907 
908 #ifdef ENABLE_SIXEL
909 	struct images			 images;
910 #endif
911 
912 	struct screen_write_cline	*write_list;
913 
914 	struct hyperlinks		*hyperlinks;
915 };
916 
917 /* Screen write context. */
918 typedef void (*screen_write_init_ctx_cb)(struct screen_write_ctx *,
919     struct tty_ctx *);
920 struct screen_write_ctx {
921 	struct window_pane		*wp;
922 	struct screen			*s;
923 
924 	int				 flags;
925 #define SCREEN_WRITE_SYNC 0x1
926 
927 	screen_write_init_ctx_cb	 init_ctx_cb;
928 	void				*arg;
929 
930 	struct screen_write_citem	*item;
931 	u_int				 scrolled;
932 	u_int				 bg;
933 };
934 
935 /* Box border lines option. */
936 enum box_lines {
937 	BOX_LINES_DEFAULT = -1,
938 	BOX_LINES_SINGLE,
939 	BOX_LINES_DOUBLE,
940 	BOX_LINES_HEAVY,
941 	BOX_LINES_SIMPLE,
942 	BOX_LINES_ROUNDED,
943 	BOX_LINES_PADDED,
944 	BOX_LINES_NONE
945 };
946 
947 /* Pane border lines option. */
948 enum pane_lines {
949 	PANE_LINES_SINGLE,
950 	PANE_LINES_DOUBLE,
951 	PANE_LINES_HEAVY,
952 	PANE_LINES_SIMPLE,
953 	PANE_LINES_NUMBER
954 };
955 
956 /* Pane border indicator option. */
957 #define PANE_BORDER_OFF 0
958 #define PANE_BORDER_COLOUR 1
959 #define PANE_BORDER_ARROWS 2
960 #define PANE_BORDER_BOTH 3
961 
962 /* Screen redraw context. */
963 struct screen_redraw_ctx {
964 	struct client	*c;
965 
966 	u_int		 statuslines;
967 	int		 statustop;
968 
969 	int		 pane_status;
970 	enum pane_lines	 pane_lines;
971 
972 	struct grid_cell no_pane_gc;
973 	int		 no_pane_gc_set;
974 
975 	u_int		 sx;
976 	u_int		 sy;
977 	u_int		 ox;
978 	u_int		 oy;
979 };
980 
981 /* Screen size. */
982 #define screen_size_x(s) ((s)->grid->sx)
983 #define screen_size_y(s) ((s)->grid->sy)
984 #define screen_hsize(s) ((s)->grid->hsize)
985 #define screen_hlimit(s) ((s)->grid->hlimit)
986 
987 /* Menu. */
988 struct menu_item {
989 	const char	*name;
990 	key_code	 key;
991 	const char	*command;
992 };
993 struct menu {
994 	const char		*title;
995 	struct menu_item	*items;
996 	u_int			 count;
997 	u_int			 width;
998 };
999 typedef void (*menu_choice_cb)(struct menu *, u_int, key_code, void *);
1000 
1001 /*
1002  * Window mode. Windows can be in several modes and this is used to call the
1003  * right function to handle input and output.
1004  */
1005 struct window_mode_entry;
1006 struct window_mode {
1007 	const char	*name;
1008 	const char	*default_format;
1009 
1010 	struct screen	*(*init)(struct window_mode_entry *,
1011 			     struct cmd_find_state *, struct args *);
1012 	void		 (*free)(struct window_mode_entry *);
1013 	void		 (*resize)(struct window_mode_entry *, u_int, u_int);
1014 	void		 (*update)(struct window_mode_entry *);
1015 	void		 (*key)(struct window_mode_entry *, struct client *,
1016 			     struct session *, struct winlink *, key_code,
1017 			     struct mouse_event *);
1018 
1019 	const char	*(*key_table)(struct window_mode_entry *);
1020 	void		 (*command)(struct window_mode_entry *, struct client *,
1021 			     struct session *, struct winlink *, struct args *,
1022 			     struct mouse_event *);
1023 	void		 (*formats)(struct window_mode_entry *,
1024 			     struct format_tree *);
1025 };
1026 
1027 /* Active window mode. */
1028 struct window_mode_entry {
1029 	struct window_pane		*wp;
1030 	struct window_pane		*swp;
1031 
1032 	const struct window_mode	*mode;
1033 	void				*data;
1034 
1035 	struct screen			*screen;
1036 	u_int				 prefix;
1037 
1038 	TAILQ_ENTRY(window_mode_entry)	 entry;
1039 };
1040 
1041 /* Offsets into pane buffer. */
1042 struct window_pane_offset {
1043 	size_t	used;
1044 };
1045 
1046 /* Queued pane resize. */
1047 struct window_pane_resize {
1048 	u_int				sx;
1049 	u_int				sy;
1050 
1051 	u_int				osx;
1052 	u_int				osy;
1053 
1054 	TAILQ_ENTRY(window_pane_resize)	entry;
1055 };
1056 TAILQ_HEAD(window_pane_resizes, window_pane_resize);
1057 
1058 /* Child window structure. */
1059 struct window_pane {
1060 	u_int		 id;
1061 	u_int		 active_point;
1062 
1063 	struct window	*window;
1064 	struct options	*options;
1065 
1066 	struct layout_cell *layout_cell;
1067 	struct layout_cell *saved_layout_cell;
1068 
1069 	u_int		 sx;
1070 	u_int		 sy;
1071 
1072 	u_int		 xoff;
1073 	u_int		 yoff;
1074 
1075 	int		 flags;
1076 #define PANE_REDRAW 0x1
1077 #define PANE_DROP 0x2
1078 #define PANE_FOCUSED 0x4
1079 #define PANE_VISITED 0x8
1080 /* 0x10 unused */
1081 /* 0x20 unused */
1082 #define PANE_INPUTOFF 0x40
1083 #define PANE_CHANGED 0x80
1084 #define PANE_EXITED 0x100
1085 #define PANE_STATUSREADY 0x200
1086 #define PANE_STATUSDRAWN 0x400
1087 #define PANE_EMPTY 0x800
1088 #define PANE_STYLECHANGED 0x1000
1089 #define PANE_UNSEENCHANGES 0x2000
1090 
1091 	int		 argc;
1092 	char	       **argv;
1093 	char		*shell;
1094 	char		*cwd;
1095 
1096 	pid_t		 pid;
1097 	char		 tty[TTY_NAME_MAX];
1098 	int		 status;
1099 	struct timeval	 dead_time;
1100 
1101 	int		 fd;
1102 	struct bufferevent *event;
1103 
1104 	struct window_pane_offset offset;
1105 	size_t		 base_offset;
1106 
1107 	struct window_pane_resizes resize_queue;
1108 	struct event	 resize_timer;
1109 
1110 	struct input_ctx *ictx;
1111 
1112 	struct grid_cell cached_gc;
1113 	struct grid_cell cached_active_gc;
1114 	struct colour_palette palette;
1115 
1116 	int		 pipe_fd;
1117 	struct bufferevent *pipe_event;
1118 	struct window_pane_offset pipe_offset;
1119 
1120 	struct screen	*screen;
1121 	struct screen	 base;
1122 
1123 	struct screen	 status_screen;
1124 	size_t		 status_size;
1125 
1126 	TAILQ_HEAD(, window_mode_entry) modes;
1127 
1128 	char		*searchstr;
1129 	int		 searchregex;
1130 
1131 	int		 border_gc_set;
1132 	struct grid_cell border_gc;
1133 
1134 	TAILQ_ENTRY(window_pane) entry;  /* link in list of all panes */
1135 	TAILQ_ENTRY(window_pane) sentry; /* link in list of last visited */
1136 	RB_ENTRY(window_pane) tree_entry;
1137 };
1138 TAILQ_HEAD(window_panes, window_pane);
1139 RB_HEAD(window_pane_tree, window_pane);
1140 
1141 /* Window structure. */
1142 struct window {
1143 	u_int			 id;
1144 	void			*latest;
1145 
1146 	char			*name;
1147 	struct event		 name_event;
1148 	struct timeval		 name_time;
1149 
1150 	struct event		 alerts_timer;
1151 	struct event		 offset_timer;
1152 
1153 	struct timeval		 activity_time;
1154 
1155 	struct window_pane	*active;
1156 	struct window_panes 	 last_panes;
1157 	struct window_panes	 panes;
1158 
1159 	int			 lastlayout;
1160 	struct layout_cell	*layout_root;
1161 	struct layout_cell	*saved_layout_root;
1162 	char			*old_layout;
1163 
1164 	u_int			 sx;
1165 	u_int			 sy;
1166 	u_int			 manual_sx;
1167 	u_int			 manual_sy;
1168 	u_int			 xpixel;
1169 	u_int			 ypixel;
1170 
1171 	u_int			 new_sx;
1172 	u_int			 new_sy;
1173 	u_int			 new_xpixel;
1174 	u_int			 new_ypixel;
1175 
1176 	struct utf8_data	*fill_character;
1177 	int			 flags;
1178 #define WINDOW_BELL 0x1
1179 #define WINDOW_ACTIVITY 0x2
1180 #define WINDOW_SILENCE 0x4
1181 #define WINDOW_ZOOMED 0x8
1182 #define WINDOW_WASZOOMED 0x10
1183 #define WINDOW_RESIZE 0x20
1184 #define WINDOW_ALERTFLAGS (WINDOW_BELL|WINDOW_ACTIVITY|WINDOW_SILENCE)
1185 
1186 	int			 alerts_queued;
1187 	TAILQ_ENTRY(window)	 alerts_entry;
1188 
1189 	struct options		*options;
1190 
1191 	u_int			 references;
1192 	TAILQ_HEAD(, winlink)	 winlinks;
1193 
1194 	RB_ENTRY(window)	 entry;
1195 };
1196 RB_HEAD(windows, window);
1197 
1198 /* Entry on local window list. */
1199 struct winlink {
1200 	int		 idx;
1201 	struct session	*session;
1202 	struct window	*window;
1203 
1204 	int		 flags;
1205 #define WINLINK_BELL 0x1
1206 #define WINLINK_ACTIVITY 0x2
1207 #define WINLINK_SILENCE 0x4
1208 #define WINLINK_ALERTFLAGS (WINLINK_BELL|WINLINK_ACTIVITY|WINLINK_SILENCE)
1209 #define WINLINK_VISITED 0x8
1210 
1211 	RB_ENTRY(winlink) entry;
1212 	TAILQ_ENTRY(winlink) wentry;
1213 	TAILQ_ENTRY(winlink) sentry;
1214 };
1215 RB_HEAD(winlinks, winlink);
1216 TAILQ_HEAD(winlink_stack, winlink);
1217 
1218 /* Window size option. */
1219 #define WINDOW_SIZE_LARGEST 0
1220 #define WINDOW_SIZE_SMALLEST 1
1221 #define WINDOW_SIZE_MANUAL 2
1222 #define WINDOW_SIZE_LATEST 3
1223 
1224 /* Pane border status option. */
1225 #define PANE_STATUS_OFF 0
1226 #define PANE_STATUS_TOP 1
1227 #define PANE_STATUS_BOTTOM 2
1228 
1229 /* Layout direction. */
1230 enum layout_type {
1231 	LAYOUT_LEFTRIGHT,
1232 	LAYOUT_TOPBOTTOM,
1233 	LAYOUT_WINDOWPANE
1234 };
1235 
1236 /* Layout cells queue. */
1237 TAILQ_HEAD(layout_cells, layout_cell);
1238 
1239 /* Layout cell. */
1240 struct layout_cell {
1241 	enum layout_type type;
1242 
1243 	struct layout_cell *parent;
1244 
1245 	u_int		 sx;
1246 	u_int		 sy;
1247 
1248 	u_int		 xoff;
1249 	u_int		 yoff;
1250 
1251 	struct window_pane *wp;
1252 	struct layout_cells cells;
1253 
1254 	TAILQ_ENTRY(layout_cell) entry;
1255 };
1256 
1257 /* Environment variable. */
1258 struct environ_entry {
1259 	char		*name;
1260 	char		*value;
1261 
1262 	int		 flags;
1263 #define ENVIRON_HIDDEN 0x1
1264 
1265 	RB_ENTRY(environ_entry) entry;
1266 };
1267 
1268 /* Client session. */
1269 struct session_group {
1270 	const char		*name;
1271 	TAILQ_HEAD(, session)	 sessions;
1272 
1273 	RB_ENTRY(session_group)	 entry;
1274 };
1275 RB_HEAD(session_groups, session_group);
1276 
1277 struct session {
1278 	u_int		 id;
1279 
1280 	char		*name;
1281 	const char	*cwd;
1282 
1283 	struct timeval	 creation_time;
1284 	struct timeval	 last_attached_time;
1285 	struct timeval	 activity_time;
1286 	struct timeval	 last_activity_time;
1287 
1288 	struct event	 lock_timer;
1289 
1290 	struct winlink	*curw;
1291 	struct winlink_stack lastw;
1292 	struct winlinks	 windows;
1293 
1294 	int		 statusat;
1295 	u_int		 statuslines;
1296 
1297 	struct options	*options;
1298 
1299 #define SESSION_PASTING 0x1
1300 #define SESSION_ALERTED 0x2
1301 	int		 flags;
1302 
1303 	u_int		 attached;
1304 
1305 	struct termios	*tio;
1306 
1307 	struct environ	*environ;
1308 
1309 	int		 references;
1310 
1311 	TAILQ_ENTRY(session) gentry;
1312 	RB_ENTRY(session)    entry;
1313 };
1314 RB_HEAD(sessions, session);
1315 
1316 /* Mouse button masks. */
1317 #define MOUSE_MASK_BUTTONS 195
1318 #define MOUSE_MASK_SHIFT 4
1319 #define MOUSE_MASK_META 8
1320 #define MOUSE_MASK_CTRL 16
1321 #define MOUSE_MASK_DRAG 32
1322 #define MOUSE_MASK_MODIFIERS (MOUSE_MASK_SHIFT|MOUSE_MASK_META|MOUSE_MASK_CTRL)
1323 
1324 /* Mouse wheel type. */
1325 #define MOUSE_WHEEL_UP 64
1326 #define MOUSE_WHEEL_DOWN 65
1327 
1328 /* Mouse button type. */
1329 #define MOUSE_BUTTON_1 0
1330 #define MOUSE_BUTTON_2 1
1331 #define MOUSE_BUTTON_3 2
1332 #define MOUSE_BUTTON_6 66
1333 #define MOUSE_BUTTON_7 67
1334 #define MOUSE_BUTTON_8 128
1335 #define MOUSE_BUTTON_9 129
1336 #define MOUSE_BUTTON_10 130
1337 #define MOUSE_BUTTON_11 131
1338 
1339 /* Mouse helpers. */
1340 #define MOUSE_BUTTONS(b) ((b) & MOUSE_MASK_BUTTONS)
1341 #define MOUSE_WHEEL(b) \
1342 	(((b) & MOUSE_MASK_BUTTONS) == MOUSE_WHEEL_UP || \
1343 	 ((b) & MOUSE_MASK_BUTTONS) == MOUSE_WHEEL_DOWN)
1344 #define MOUSE_DRAG(b) ((b) & MOUSE_MASK_DRAG)
1345 #define MOUSE_RELEASE(b) (((b) & MOUSE_MASK_BUTTONS) == 3)
1346 
1347 /* Mouse input. */
1348 struct mouse_event {
1349 	int		valid;
1350 	int		ignore;
1351 
1352 	key_code	key;
1353 
1354 	int		statusat;
1355 	u_int		statuslines;
1356 
1357 	u_int		x;
1358 	u_int		y;
1359 	u_int		b;
1360 
1361 	u_int		lx;
1362 	u_int		ly;
1363 	u_int		lb;
1364 
1365 	u_int		ox;
1366 	u_int		oy;
1367 
1368 	int		s;
1369 	int		w;
1370 	int		wp;
1371 
1372 	u_int		sgr_type;
1373 	u_int		sgr_b;
1374 };
1375 
1376 /* Key event. */
1377 struct key_event {
1378 	key_code		key;
1379 	struct mouse_event	m;
1380 };
1381 
1382 /* Terminal definition. */
1383 struct tty_term {
1384 	char		*name;
1385 	struct tty	*tty;
1386 	int		 features;
1387 
1388 	char		 acs[UCHAR_MAX + 1][2];
1389 
1390 	struct tty_code	*codes;
1391 
1392 #define TERM_256COLOURS 0x1
1393 #define TERM_NOAM 0x2
1394 #define TERM_DECSLRM 0x4
1395 #define TERM_DECFRA 0x8
1396 #define TERM_RGBCOLOURS 0x10
1397 #define TERM_VT100LIKE 0x20
1398 #define TERM_SIXEL 0x40
1399 	int		 flags;
1400 
1401 	LIST_ENTRY(tty_term) entry;
1402 };
1403 LIST_HEAD(tty_terms, tty_term);
1404 
1405 /* Client terminal. */
1406 struct tty {
1407 	struct client	*client;
1408 	struct event	 start_timer;
1409 	struct event	 clipboard_timer;
1410 	time_t		 last_requests;
1411 
1412 	u_int		 sx;
1413 	u_int		 sy;
1414         /* Cell size in pixels. */
1415 	u_int		 xpixel;
1416 	u_int		 ypixel;
1417 
1418 	u_int		 cx;
1419 	u_int		 cy;
1420 	enum screen_cursor_style cstyle;
1421 	int		 ccolour;
1422 
1423         /* Properties of the area being drawn on. */
1424         /* When true, the drawing area is bigger than the terminal. */
1425 	int		 oflag;
1426 	u_int		 oox;
1427 	u_int		 ooy;
1428 	u_int		 osx;
1429 	u_int		 osy;
1430 
1431 	int		 mode;
1432 	int              fg;
1433 	int              bg;
1434 
1435 	u_int		 rlower;
1436 	u_int		 rupper;
1437 
1438 	u_int		 rleft;
1439 	u_int		 rright;
1440 
1441 	struct event	 event_in;
1442 	struct evbuffer	*in;
1443 	struct event	 event_out;
1444 	struct evbuffer	*out;
1445 	struct event	 timer;
1446 	size_t		 discarded;
1447 
1448 	struct termios	 tio;
1449 
1450 	struct grid_cell cell;
1451 	struct grid_cell last_cell;
1452 
1453 #define TTY_NOCURSOR 0x1
1454 #define TTY_FREEZE 0x2
1455 #define TTY_TIMER 0x4
1456 #define TTY_NOBLOCK 0x8
1457 #define TTY_STARTED 0x10
1458 #define TTY_OPENED 0x20
1459 #define TTY_OSC52QUERY 0x40
1460 #define TTY_BLOCK 0x80
1461 #define TTY_HAVEDA 0x100 /* Primary DA. */
1462 #define TTY_HAVEXDA 0x200
1463 #define TTY_SYNCING 0x400
1464 #define TTY_HAVEDA2 0x800 /* Secondary DA. */
1465 #define TTY_ALL_REQUEST_FLAGS \
1466 	(TTY_HAVEDA|TTY_HAVEDA2|TTY_HAVEXDA)
1467 	int		 flags;
1468 
1469 	struct tty_term	*term;
1470 
1471 	u_int		 mouse_last_x;
1472 	u_int		 mouse_last_y;
1473 	u_int		 mouse_last_b;
1474 	int		 mouse_drag_flag;
1475 	void		(*mouse_drag_update)(struct client *,
1476 			    struct mouse_event *);
1477 	void		(*mouse_drag_release)(struct client *,
1478 			    struct mouse_event *);
1479 
1480 	struct event	 key_timer;
1481 	struct tty_key	*key_tree;
1482 };
1483 
1484 /* Terminal command context. */
1485 typedef void (*tty_ctx_redraw_cb)(const struct tty_ctx *);
1486 typedef int (*tty_ctx_set_client_cb)(struct tty_ctx *, struct client *);
1487 struct tty_ctx {
1488 	struct screen		*s;
1489 
1490 	tty_ctx_redraw_cb	 redraw_cb;
1491 	tty_ctx_set_client_cb	 set_client_cb;
1492 	void			*arg;
1493 
1494 	const struct grid_cell	*cell;
1495 	int			 wrapped;
1496 
1497 	u_int			 num;
1498 	void			*ptr;
1499 	void			*ptr2;
1500 
1501 	/*
1502 	 * Whether this command should be sent even when the pane is not
1503 	 * visible (used for a passthrough sequence when allow-passthrough is
1504 	 * "all").
1505 	 */
1506 	int			 allow_invisible_panes;
1507 
1508 	/*
1509 	 * Cursor and region position before the screen was updated - this is
1510 	 * where the command should be applied; the values in the screen have
1511 	 * already been updated.
1512 	 */
1513 	u_int			 ocx;
1514 	u_int			 ocy;
1515 
1516 	u_int			 orupper;
1517 	u_int			 orlower;
1518 
1519 	/* Target region (usually pane) offset and size. */
1520 	u_int			 xoff;
1521 	u_int			 yoff;
1522 	u_int			 rxoff;
1523 	u_int			 ryoff;
1524 	u_int			 sx;
1525 	u_int			 sy;
1526 
1527 	/* The background colour used for clearing (erasing). */
1528 	u_int			 bg;
1529 
1530 	/* The default colours and palette. */
1531 	struct grid_cell	 defaults;
1532 	struct colour_palette	*palette;
1533 
1534 	/* Containing region (usually window) offset and size. */
1535 	int			 bigger;
1536 	u_int			 wox;
1537 	u_int			 woy;
1538 	u_int			 wsx;
1539 	u_int			 wsy;
1540 };
1541 
1542 /* Saved message entry. */
1543 struct message_entry {
1544 	char				*msg;
1545 	u_int				 msg_num;
1546 	struct timeval			 msg_time;
1547 
1548 	TAILQ_ENTRY(message_entry)	 entry;
1549 };
1550 TAILQ_HEAD(message_list, message_entry);
1551 
1552 /* Argument type. */
1553 enum args_type {
1554 	ARGS_NONE,
1555 	ARGS_STRING,
1556 	ARGS_COMMANDS
1557 };
1558 
1559 /* Argument value. */
1560 struct args_value {
1561 	enum args_type		 type;
1562 	union {
1563 		char		*string;
1564 		struct cmd_list	*cmdlist;
1565 	};
1566 	char			*cached;
1567 	TAILQ_ENTRY(args_value)	 entry;
1568 };
1569 
1570 /* Arguments set. */
1571 struct args_entry;
1572 RB_HEAD(args_tree, args_entry);
1573 
1574 /* Arguments parsing type. */
1575 enum args_parse_type {
1576 	ARGS_PARSE_INVALID,
1577 	ARGS_PARSE_STRING,
1578 	ARGS_PARSE_COMMANDS_OR_STRING,
1579 	ARGS_PARSE_COMMANDS
1580 };
1581 
1582 /* Arguments parsing state. */
1583 typedef enum args_parse_type (*args_parse_cb)(struct args *, u_int, char **);
1584 struct args_parse {
1585 	const char	*template;
1586 	int		 lower;
1587 	int		 upper;
1588 	args_parse_cb	 cb;
1589 };
1590 
1591 /* Command find structures. */
1592 enum cmd_find_type {
1593 	CMD_FIND_PANE,
1594 	CMD_FIND_WINDOW,
1595 	CMD_FIND_SESSION,
1596 };
1597 struct cmd_find_state {
1598 	int			 flags;
1599 	struct cmd_find_state	*current;
1600 
1601 	struct session		*s;
1602 	struct winlink		*wl;
1603 	struct window		*w;
1604 	struct window_pane	*wp;
1605 	int			 idx;
1606 };
1607 
1608 /* Command find flags. */
1609 #define CMD_FIND_PREFER_UNATTACHED 0x1
1610 #define CMD_FIND_QUIET 0x2
1611 #define CMD_FIND_WINDOW_INDEX 0x4
1612 #define CMD_FIND_DEFAULT_MARKED 0x8
1613 #define CMD_FIND_EXACT_SESSION 0x10
1614 #define CMD_FIND_EXACT_WINDOW 0x20
1615 #define CMD_FIND_CANFAIL 0x40
1616 
1617 /* List of commands. */
1618 struct cmd_list {
1619 	int		 references;
1620 	u_int		 group;
1621 	struct cmds	*list;
1622 };
1623 
1624 /* Command return values. */
1625 enum cmd_retval {
1626 	CMD_RETURN_ERROR = -1,
1627 	CMD_RETURN_NORMAL = 0,
1628 	CMD_RETURN_WAIT,
1629 	CMD_RETURN_STOP
1630 };
1631 
1632 /* Command parse result. */
1633 enum cmd_parse_status {
1634 	CMD_PARSE_ERROR,
1635 	CMD_PARSE_SUCCESS
1636 };
1637 struct cmd_parse_result {
1638 	enum cmd_parse_status	 status;
1639 	struct cmd_list		*cmdlist;
1640 	char			*error;
1641 };
1642 struct cmd_parse_input {
1643 	int			 flags;
1644 #define CMD_PARSE_QUIET 0x1
1645 #define CMD_PARSE_PARSEONLY 0x2
1646 #define CMD_PARSE_NOALIAS 0x4
1647 #define CMD_PARSE_VERBOSE 0x8
1648 #define CMD_PARSE_ONEGROUP 0x10
1649 
1650 	const char		*file;
1651 	u_int			 line;
1652 
1653 	struct cmdq_item	*item;
1654 	struct client		*c;
1655 	struct cmd_find_state	 fs;
1656 };
1657 
1658 /* Command queue flags. */
1659 #define CMDQ_STATE_REPEAT 0x1
1660 #define CMDQ_STATE_CONTROL 0x2
1661 #define CMDQ_STATE_NOHOOKS 0x4
1662 
1663 /* Command queue callback. */
1664 typedef enum cmd_retval (*cmdq_cb) (struct cmdq_item *, void *);
1665 
1666 /* Command definition flag. */
1667 struct cmd_entry_flag {
1668 	char			 flag;
1669 	enum cmd_find_type	 type;
1670 	int			 flags;
1671 };
1672 
1673 /* Command definition. */
1674 struct cmd_entry {
1675 	const char		*name;
1676 	const char		*alias;
1677 
1678 	struct args_parse	 args;
1679 	const char		*usage;
1680 
1681 	struct cmd_entry_flag	 source;
1682 	struct cmd_entry_flag	 target;
1683 
1684 #define CMD_STARTSERVER 0x1
1685 #define CMD_READONLY 0x2
1686 #define CMD_AFTERHOOK 0x4
1687 #define CMD_CLIENT_CFLAG 0x8
1688 #define CMD_CLIENT_TFLAG 0x10
1689 #define CMD_CLIENT_CANFAIL 0x20
1690 	int		 flags;
1691 
1692 	enum cmd_retval	 (*exec)(struct cmd *, struct cmdq_item *);
1693 };
1694 
1695 /* Status line. */
1696 #define STATUS_LINES_LIMIT 5
1697 struct status_line_entry {
1698 	char			*expanded;
1699 	struct style_ranges	 ranges;
1700 };
1701 struct status_line {
1702 	struct event		 timer;
1703 
1704 	struct screen		 screen;
1705 	struct screen		*active;
1706 	int			 references;
1707 
1708 	struct grid_cell	 style;
1709 	struct status_line_entry entries[STATUS_LINES_LIMIT];
1710 };
1711 
1712 /* Prompt type. */
1713 #define PROMPT_NTYPES 4
1714 enum prompt_type {
1715 	PROMPT_TYPE_COMMAND,
1716 	PROMPT_TYPE_SEARCH,
1717 	PROMPT_TYPE_TARGET,
1718 	PROMPT_TYPE_WINDOW_TARGET,
1719 	PROMPT_TYPE_INVALID = 0xff
1720 };
1721 
1722 /* File in client. */
1723 typedef void (*client_file_cb) (struct client *, const char *, int, int,
1724     struct evbuffer *, void *);
1725 struct client_file {
1726 	struct client			*c;
1727 	struct tmuxpeer			*peer;
1728 	struct client_files		*tree;
1729 	int				 references;
1730 	int				 stream;
1731 
1732 	char				*path;
1733 	struct evbuffer			*buffer;
1734 	struct bufferevent		*event;
1735 
1736 	int				 fd;
1737 	int				 error;
1738 	int				 closed;
1739 
1740 	client_file_cb			 cb;
1741 	void				*data;
1742 
1743 	RB_ENTRY(client_file)		 entry;
1744 };
1745 RB_HEAD(client_files, client_file);
1746 
1747 /* Client window. */
1748 struct client_window {
1749 	u_int			 window;
1750 	struct window_pane	*pane;
1751 
1752 	u_int			 sx;
1753 	u_int			 sy;
1754 
1755 	RB_ENTRY(client_window)	 entry;
1756 };
1757 RB_HEAD(client_windows, client_window);
1758 
1759 /* Visible areas not obstructed by overlays. */
1760 #define OVERLAY_MAX_RANGES 3
1761 struct overlay_ranges {
1762 	u_int	px[OVERLAY_MAX_RANGES];
1763 	u_int	nx[OVERLAY_MAX_RANGES];
1764 };
1765 
1766 /* Client connection. */
1767 typedef int (*prompt_input_cb)(struct client *, void *, const char *, int);
1768 typedef void (*prompt_free_cb)(void *);
1769 typedef void (*overlay_check_cb)(struct client*, void *, u_int, u_int, u_int,
1770 	    struct overlay_ranges *);
1771 typedef struct screen *(*overlay_mode_cb)(struct client *, void *, u_int *,
1772 	    u_int *);
1773 typedef void (*overlay_draw_cb)(struct client *, void *,
1774 	    struct screen_redraw_ctx *);
1775 typedef int (*overlay_key_cb)(struct client *, void *, struct key_event *);
1776 typedef void (*overlay_free_cb)(struct client *, void *);
1777 typedef void (*overlay_resize_cb)(struct client *, void *);
1778 struct client {
1779 	const char		*name;
1780 	struct tmuxpeer		*peer;
1781 	struct cmdq_list	*queue;
1782 
1783 	struct client_windows	 windows;
1784 
1785 	struct control_state	*control_state;
1786 	u_int			 pause_age;
1787 
1788 	pid_t			 pid;
1789 	int			 fd;
1790 	int			 out_fd;
1791 	struct event		 event;
1792 	int			 retval;
1793 
1794 	struct timeval		 creation_time;
1795 	struct timeval		 activity_time;
1796 
1797 	struct environ		*environ;
1798 	struct format_job_tree	*jobs;
1799 
1800 	char			*title;
1801 	char			*path;
1802 	const char		*cwd;
1803 
1804 	char			*term_name;
1805 	int			 term_features;
1806 	char			*term_type;
1807 	char		       **term_caps;
1808 	u_int			 term_ncaps;
1809 
1810 	char			*ttyname;
1811 	struct tty		 tty;
1812 
1813 	size_t			 written;
1814 	size_t			 discarded;
1815 	size_t			 redraw;
1816 
1817 	struct event		 repeat_timer;
1818 
1819 	struct event		 click_timer;
1820 	u_int			 click_button;
1821 	struct mouse_event	 click_event;
1822 
1823 	struct status_line	 status;
1824 
1825 #define CLIENT_TERMINAL 0x1
1826 #define CLIENT_LOGIN 0x2
1827 #define CLIENT_EXIT 0x4
1828 #define CLIENT_REDRAWWINDOW 0x8
1829 #define CLIENT_REDRAWSTATUS 0x10
1830 #define CLIENT_REPEAT 0x20
1831 #define CLIENT_SUSPENDED 0x40
1832 #define CLIENT_ATTACHED 0x80
1833 #define CLIENT_EXITED 0x100
1834 #define CLIENT_DEAD 0x200
1835 #define CLIENT_REDRAWBORDERS 0x400
1836 #define CLIENT_READONLY 0x800
1837 #define CLIENT_NOSTARTSERVER 0x1000
1838 #define CLIENT_CONTROL 0x2000
1839 #define CLIENT_CONTROLCONTROL 0x4000
1840 #define CLIENT_FOCUSED 0x8000
1841 #define CLIENT_UTF8 0x10000
1842 #define CLIENT_IGNORESIZE 0x20000
1843 #define CLIENT_IDENTIFIED 0x40000
1844 #define CLIENT_STATUSFORCE 0x80000
1845 #define CLIENT_DOUBLECLICK 0x100000
1846 #define CLIENT_TRIPLECLICK 0x200000
1847 #define CLIENT_SIZECHANGED 0x400000
1848 #define CLIENT_STATUSOFF 0x800000
1849 #define CLIENT_REDRAWSTATUSALWAYS 0x1000000
1850 #define CLIENT_REDRAWOVERLAY 0x2000000
1851 #define CLIENT_CONTROL_NOOUTPUT 0x4000000
1852 #define CLIENT_DEFAULTSOCKET 0x8000000
1853 #define CLIENT_STARTSERVER 0x10000000
1854 #define CLIENT_REDRAWPANES 0x20000000
1855 #define CLIENT_NOFORK 0x40000000
1856 #define CLIENT_ACTIVEPANE 0x80000000ULL
1857 #define CLIENT_CONTROL_PAUSEAFTER 0x100000000ULL
1858 #define CLIENT_CONTROL_WAITEXIT 0x200000000ULL
1859 #define CLIENT_WINDOWSIZECHANGED 0x400000000ULL
1860 #define CLIENT_CLIPBOARDBUFFER 0x800000000ULL
1861 #define CLIENT_BRACKETPASTING 0x1000000000ULL
1862 #define CLIENT_ALLREDRAWFLAGS		\
1863 	(CLIENT_REDRAWWINDOW|		\
1864 	 CLIENT_REDRAWSTATUS|		\
1865 	 CLIENT_REDRAWSTATUSALWAYS|	\
1866 	 CLIENT_REDRAWBORDERS|		\
1867 	 CLIENT_REDRAWOVERLAY|		\
1868 	 CLIENT_REDRAWPANES)
1869 #define CLIENT_UNATTACHEDFLAGS	\
1870 	(CLIENT_DEAD|		\
1871 	 CLIENT_SUSPENDED|	\
1872 	 CLIENT_EXIT)
1873 #define CLIENT_NODETACHFLAGS	\
1874 	(CLIENT_DEAD|		\
1875 	 CLIENT_EXIT)
1876 #define CLIENT_NOSIZEFLAGS	\
1877 	(CLIENT_DEAD|		\
1878 	 CLIENT_SUSPENDED|	\
1879 	 CLIENT_EXIT)
1880 	uint64_t		 flags;
1881 
1882 	enum {
1883 		CLIENT_EXIT_RETURN,
1884 		CLIENT_EXIT_SHUTDOWN,
1885 		CLIENT_EXIT_DETACH
1886 	}			 exit_type;
1887 	enum msgtype		 exit_msgtype;
1888 	char			*exit_session;
1889 	char			*exit_message;
1890 
1891 	struct key_table	*keytable;
1892 
1893 	uint64_t		 redraw_panes;
1894 
1895 	int			 message_ignore_keys;
1896 	int			 message_ignore_styles;
1897 	char			*message_string;
1898 	struct event		 message_timer;
1899 
1900 	char			*prompt_string;
1901 	struct utf8_data	*prompt_buffer;
1902 	char			*prompt_last;
1903 	size_t			 prompt_index;
1904 	prompt_input_cb		 prompt_inputcb;
1905 	prompt_free_cb		 prompt_freecb;
1906 	void			*prompt_data;
1907 	u_int			 prompt_hindex[PROMPT_NTYPES];
1908 	enum {
1909 		PROMPT_ENTRY,
1910 		PROMPT_COMMAND
1911 	}			 prompt_mode;
1912 	struct utf8_data	*prompt_saved;
1913 #define PROMPT_SINGLE 0x1
1914 #define PROMPT_NUMERIC 0x2
1915 #define PROMPT_INCREMENTAL 0x4
1916 #define PROMPT_NOFORMAT 0x8
1917 #define PROMPT_KEY 0x10
1918 	int			 prompt_flags;
1919 	enum prompt_type	 prompt_type;
1920 	int			 prompt_cursor;
1921 
1922 	struct session		*session;
1923 	struct session		*last_session;
1924 
1925 	int			 references;
1926 
1927 	void			*pan_window;
1928 	u_int			 pan_ox;
1929 	u_int			 pan_oy;
1930 
1931 	overlay_check_cb	 overlay_check;
1932 	overlay_mode_cb		 overlay_mode;
1933 	overlay_draw_cb		 overlay_draw;
1934 	overlay_key_cb		 overlay_key;
1935 	overlay_free_cb		 overlay_free;
1936 	overlay_resize_cb	 overlay_resize;
1937 	void			*overlay_data;
1938 	struct event		 overlay_timer;
1939 
1940 	struct client_files	 files;
1941 
1942 	u_int			*clipboard_panes;
1943 	u_int			 clipboard_npanes;
1944 
1945 	TAILQ_ENTRY(client)	 entry;
1946 };
1947 TAILQ_HEAD(clients, client);
1948 
1949 /* Control mode subscription type. */
1950 enum control_sub_type {
1951 	CONTROL_SUB_SESSION,
1952 	CONTROL_SUB_PANE,
1953 	CONTROL_SUB_ALL_PANES,
1954 	CONTROL_SUB_WINDOW,
1955 	CONTROL_SUB_ALL_WINDOWS
1956 };
1957 
1958 /* Key binding and key table. */
1959 struct key_binding {
1960 	key_code		 key;
1961 	struct cmd_list		*cmdlist;
1962 	const char		*note;
1963 
1964 	int			 flags;
1965 #define KEY_BINDING_REPEAT 0x1
1966 
1967 	RB_ENTRY(key_binding)	 entry;
1968 };
1969 RB_HEAD(key_bindings, key_binding);
1970 
1971 struct key_table {
1972 	const char		*name;
1973 	struct key_bindings	 key_bindings;
1974 	struct key_bindings	 default_key_bindings;
1975 
1976 	u_int			 references;
1977 
1978 	RB_ENTRY(key_table)	 entry;
1979 };
1980 RB_HEAD(key_tables, key_table);
1981 
1982 /* Option data. */
1983 RB_HEAD(options_array, options_array_item);
1984 union options_value {
1985 	char			*string;
1986 	long long		 number;
1987 	struct style		 style;
1988 	struct options_array	 array;
1989 	struct cmd_list		*cmdlist;
1990 };
1991 
1992 /* Option table entries. */
1993 enum options_table_type {
1994 	OPTIONS_TABLE_STRING,
1995 	OPTIONS_TABLE_NUMBER,
1996 	OPTIONS_TABLE_KEY,
1997 	OPTIONS_TABLE_COLOUR,
1998 	OPTIONS_TABLE_FLAG,
1999 	OPTIONS_TABLE_CHOICE,
2000 	OPTIONS_TABLE_COMMAND
2001 };
2002 
2003 #define OPTIONS_TABLE_NONE 0
2004 #define OPTIONS_TABLE_SERVER 0x1
2005 #define OPTIONS_TABLE_SESSION 0x2
2006 #define OPTIONS_TABLE_WINDOW 0x4
2007 #define OPTIONS_TABLE_PANE 0x8
2008 
2009 #define OPTIONS_TABLE_IS_ARRAY 0x1
2010 #define OPTIONS_TABLE_IS_HOOK 0x2
2011 #define OPTIONS_TABLE_IS_STYLE 0x4
2012 
2013 struct options_table_entry {
2014 	const char		 *name;
2015 	const char		 *alternative_name;
2016 	enum options_table_type	  type;
2017 	int			  scope;
2018 	int			  flags;
2019 
2020 	u_int			  minimum;
2021 	u_int			  maximum;
2022 	const char		**choices;
2023 
2024 	const char		 *default_str;
2025 	long long		  default_num;
2026 	const char		**default_arr;
2027 
2028 	const char		 *separator;
2029 	const char		 *pattern;
2030 
2031 	const char		 *text;
2032 	const char		 *unit;
2033 };
2034 
2035 struct options_name_map {
2036 	const char		*from;
2037 	const char		*to;
2038 };
2039 
2040 /* Common command usages. */
2041 #define CMD_TARGET_PANE_USAGE "[-t target-pane]"
2042 #define CMD_TARGET_WINDOW_USAGE "[-t target-window]"
2043 #define CMD_TARGET_SESSION_USAGE "[-t target-session]"
2044 #define CMD_TARGET_CLIENT_USAGE "[-t target-client]"
2045 #define CMD_SRCDST_PANE_USAGE "[-s src-pane] [-t dst-pane]"
2046 #define CMD_SRCDST_WINDOW_USAGE "[-s src-window] [-t dst-window]"
2047 #define CMD_SRCDST_SESSION_USAGE "[-s src-session] [-t dst-session]"
2048 #define CMD_SRCDST_CLIENT_USAGE "[-s src-client] [-t dst-client]"
2049 #define CMD_BUFFER_USAGE "[-b buffer-name]"
2050 
2051 /* Spawn common context. */
2052 struct spawn_context {
2053 	struct cmdq_item	 *item;
2054 
2055 	struct session		 *s;
2056 	struct winlink		 *wl;
2057 	struct client		 *tc;
2058 
2059 	struct window_pane	 *wp0;
2060 	struct layout_cell	 *lc;
2061 
2062 	const char		 *name;
2063 	char			**argv;
2064 	int			  argc;
2065 	struct environ		 *environ;
2066 
2067 	int			  idx;
2068 	const char		 *cwd;
2069 
2070 	int			  flags;
2071 #define SPAWN_KILL 0x1
2072 #define SPAWN_DETACHED 0x2
2073 #define SPAWN_RESPAWN 0x4
2074 #define SPAWN_BEFORE 0x8
2075 #define SPAWN_NONOTIFY 0x10
2076 #define SPAWN_FULLSIZE 0x20
2077 #define SPAWN_EMPTY 0x40
2078 #define SPAWN_ZOOM 0x80
2079 };
2080 
2081 /* Mode tree sort order. */
2082 struct mode_tree_sort_criteria {
2083 	u_int	field;
2084 	int	reversed;
2085 };
2086 
2087 /* tmux.c */
2088 extern struct options	*global_options;
2089 extern struct options	*global_s_options;
2090 extern struct options	*global_w_options;
2091 extern struct environ	*global_environ;
2092 extern struct timeval	 start_time;
2093 extern const char	*socket_path;
2094 extern const char	*shell_command;
2095 extern int		 ptm_fd;
2096 extern const char	*shell_command;
2097 int		 checkshell(const char *);
2098 void		 setblocking(int, int);
2099 uint64_t	 get_timer(void);
2100 const char	*sig2name(int);
2101 const char	*find_cwd(void);
2102 const char	*find_home(void);
2103 const char	*getversion(void);
2104 
2105 /* proc.c */
2106 struct imsg;
2107 int	proc_send(struct tmuxpeer *, enum msgtype, int, const void *, size_t);
2108 struct tmuxproc *proc_start(const char *);
2109 void	proc_loop(struct tmuxproc *, int (*)(void));
2110 void	proc_exit(struct tmuxproc *);
2111 void	proc_set_signals(struct tmuxproc *, void(*)(int));
2112 void	proc_clear_signals(struct tmuxproc *, int);
2113 struct tmuxpeer *proc_add_peer(struct tmuxproc *, int,
2114 	    void (*)(struct imsg *, void *), void *);
2115 void	proc_remove_peer(struct tmuxpeer *);
2116 void	proc_kill_peer(struct tmuxpeer *);
2117 void	proc_flush_peer(struct tmuxpeer *);
2118 void	proc_toggle_log(struct tmuxproc *);
2119 pid_t	proc_fork_and_daemon(int *);
2120 uid_t	proc_get_peer_uid(struct tmuxpeer *);
2121 
2122 /* cfg.c */
2123 extern int cfg_finished;
2124 extern struct client *cfg_client;
2125 extern char **cfg_files;
2126 extern u_int cfg_nfiles;
2127 extern int cfg_quiet;
2128 void	start_cfg(void);
2129 int	load_cfg(const char *, struct client *, struct cmdq_item *,
2130             struct cmd_find_state *, int, struct cmdq_item **);
2131 int	load_cfg_from_buffer(const void *, size_t, const char *,
2132   	    struct client *, struct cmdq_item *, struct cmd_find_state *,
2133 	    int, struct cmdq_item **);
2134 void printflike(1, 2) cfg_add_cause(const char *, ...);
2135 void	cfg_print_causes(struct cmdq_item *);
2136 void	cfg_show_causes(struct session *);
2137 
2138 /* paste.c */
2139 struct paste_buffer;
2140 const char	*paste_buffer_name(struct paste_buffer *);
2141 u_int		 paste_buffer_order(struct paste_buffer *);
2142 time_t		 paste_buffer_created(struct paste_buffer *);
2143 const char	*paste_buffer_data(struct paste_buffer *, size_t *);
2144 struct paste_buffer *paste_walk(struct paste_buffer *);
2145 int		 paste_is_empty(void);
2146 struct paste_buffer *paste_get_top(const char **);
2147 struct paste_buffer *paste_get_name(const char *);
2148 void		 paste_free(struct paste_buffer *);
2149 void		 paste_add(const char *, char *, size_t);
2150 int		 paste_rename(const char *, const char *, char **);
2151 int		 paste_set(char *, size_t, const char *, char **);
2152 void		 paste_replace(struct paste_buffer *, char *, size_t);
2153 char		*paste_make_sample(struct paste_buffer *);
2154 
2155 /* format.c */
2156 #define FORMAT_STATUS 0x1
2157 #define FORMAT_FORCE 0x2
2158 #define FORMAT_NOJOBS 0x4
2159 #define FORMAT_VERBOSE 0x8
2160 #define FORMAT_NONE 0
2161 #define FORMAT_PANE 0x80000000U
2162 #define FORMAT_WINDOW 0x40000000U
2163 struct format_tree;
2164 struct format_modifier;
2165 typedef void *(*format_cb)(struct format_tree *);
2166 void		 format_tidy_jobs(void);
2167 const char	*format_skip(const char *, const char *);
2168 int		 format_true(const char *);
2169 struct format_tree *format_create(struct client *, struct cmdq_item *, int,
2170 		     int);
2171 void		 format_free(struct format_tree *);
2172 void		 format_merge(struct format_tree *, struct format_tree *);
2173 struct window_pane *format_get_pane(struct format_tree *);
2174 void printflike(3, 4) format_add(struct format_tree *, const char *,
2175 		     const char *, ...);
2176 void		 format_add_tv(struct format_tree *, const char *,
2177 		     struct timeval *);
2178 void		 format_add_cb(struct format_tree *, const char *, format_cb);
2179 void		 format_log_debug(struct format_tree *, const char *);
2180 void		 format_each(struct format_tree *, void (*)(const char *,
2181 		     const char *, void *), void *);
2182 char		*format_pretty_time(time_t, int);
2183 char		*format_expand_time(struct format_tree *, const char *);
2184 char		*format_expand(struct format_tree *, const char *);
2185 char		*format_single(struct cmdq_item *, const char *,
2186 		     struct client *, struct session *, struct winlink *,
2187 		     struct window_pane *);
2188 char		*format_single_from_state(struct cmdq_item *, const char *,
2189 		    struct client *, struct cmd_find_state *);
2190 char		*format_single_from_target(struct cmdq_item *, const char *);
2191 struct format_tree *format_create_defaults(struct cmdq_item *, struct client *,
2192 		     struct session *, struct winlink *, struct window_pane *);
2193 struct format_tree *format_create_from_state(struct cmdq_item *,
2194 		     struct client *, struct cmd_find_state *);
2195 struct format_tree *format_create_from_target(struct cmdq_item *);
2196 void		 format_defaults(struct format_tree *, struct client *,
2197 		     struct session *, struct winlink *, struct window_pane *);
2198 void		 format_defaults_window(struct format_tree *, struct window *);
2199 void		 format_defaults_pane(struct format_tree *,
2200 		     struct window_pane *);
2201 void		 format_defaults_paste_buffer(struct format_tree *,
2202 		     struct paste_buffer *);
2203 void		 format_lost_client(struct client *);
2204 char		*format_grid_word(struct grid *, u_int, u_int);
2205 char		*format_grid_hyperlink(struct grid *, u_int, u_int,
2206 		     struct screen *);
2207 char		*format_grid_line(struct grid *, u_int);
2208 
2209 /* format-draw.c */
2210 void		 format_draw(struct screen_write_ctx *,
2211 		     const struct grid_cell *, u_int, const char *,
2212 		     struct style_ranges *, int);
2213 u_int		 format_width(const char *);
2214 char		*format_trim_left(const char *, u_int);
2215 char		*format_trim_right(const char *, u_int);
2216 
2217 /* notify.c */
2218 void	notify_hook(struct cmdq_item *, const char *);
2219 void	notify_client(const char *, struct client *);
2220 void	notify_session(const char *, struct session *);
2221 void	notify_winlink(const char *, struct winlink *);
2222 void	notify_session_window(const char *, struct session *, struct window *);
2223 void	notify_window(const char *, struct window *);
2224 void	notify_pane(const char *, struct window_pane *);
2225 void	notify_paste_buffer(const char *, int);
2226 
2227 /* options.c */
2228 struct options	*options_create(struct options *);
2229 void		 options_free(struct options *);
2230 struct options	*options_get_parent(struct options *);
2231 void		 options_set_parent(struct options *, struct options *);
2232 struct options_entry *options_first(struct options *);
2233 struct options_entry *options_next(struct options_entry *);
2234 struct options_entry *options_empty(struct options *,
2235 		     const struct options_table_entry *);
2236 struct options_entry *options_default(struct options *,
2237 		     const struct options_table_entry *);
2238 char		*options_default_to_string(const struct options_table_entry *);
2239 const char	*options_name(struct options_entry *);
2240 struct options	*options_owner(struct options_entry *);
2241 const struct options_table_entry *options_table_entry(struct options_entry *);
2242 struct options_entry *options_get_only(struct options *, const char *);
2243 struct options_entry *options_get(struct options *, const char *);
2244 void		 options_array_clear(struct options_entry *);
2245 union options_value *options_array_get(struct options_entry *, u_int);
2246 int		 options_array_set(struct options_entry *, u_int, const char *,
2247 		     int, char **);
2248 int		 options_array_assign(struct options_entry *, const char *,
2249 		     char **);
2250 struct options_array_item *options_array_first(struct options_entry *);
2251 struct options_array_item *options_array_next(struct options_array_item *);
2252 u_int		 options_array_item_index(struct options_array_item *);
2253 union options_value *options_array_item_value(struct options_array_item *);
2254 int		 options_is_array(struct options_entry *);
2255 int		 options_is_string(struct options_entry *);
2256 char		*options_to_string(struct options_entry *, int, int);
2257 char		*options_parse(const char *, int *);
2258 struct options_entry *options_parse_get(struct options *, const char *, int *,
2259 		     int);
2260 char		*options_match(const char *, int *, int *);
2261 struct options_entry *options_match_get(struct options *, const char *, int *,
2262 		     int, int *);
2263 const char	*options_get_string(struct options *, const char *);
2264 long long	 options_get_number(struct options *, const char *);
2265 struct options_entry * printflike(4, 5) options_set_string(struct options *,
2266 		     const char *, int, const char *, ...);
2267 struct options_entry *options_set_number(struct options *, const char *,
2268 		     long long);
2269 int		 options_scope_from_name(struct args *, int,
2270 		     const char *, struct cmd_find_state *, struct options **,
2271 		     char **);
2272 int		 options_scope_from_flags(struct args *, int,
2273 		     struct cmd_find_state *, struct options **, char **);
2274 struct style	*options_string_to_style(struct options *, const char *,
2275 		     struct format_tree *);
2276 int		 options_from_string(struct options *,
2277 		     const struct options_table_entry *, const char *,
2278 		     const char *, int, char **);
2279 int	 	 options_find_choice(const struct options_table_entry *,
2280 		     const char *, char **);
2281 void		 options_push_changes(const char *);
2282 int		 options_remove_or_default(struct options_entry *, int,
2283 		     char **);
2284 
2285 /* options-table.c */
2286 extern const struct options_table_entry	options_table[];
2287 extern const struct options_name_map	options_other_names[];
2288 
2289 /* job.c */
2290 typedef void (*job_update_cb) (struct job *);
2291 typedef void (*job_complete_cb) (struct job *);
2292 typedef void (*job_free_cb) (void *);
2293 #define JOB_NOWAIT 0x1
2294 #define JOB_KEEPWRITE 0x2
2295 #define JOB_PTY 0x4
2296 struct job	*job_run(const char *, int, char **, struct environ *,
2297 		     struct session *, const char *, job_update_cb,
2298 		     job_complete_cb, job_free_cb, void *, int, int, int);
2299 void		 job_free(struct job *);
2300 int		 job_transfer(struct job *, pid_t *, char *, size_t);
2301 void		 job_resize(struct job *, u_int, u_int);
2302 void		 job_check_died(pid_t, int);
2303 int		 job_get_status(struct job *);
2304 void		*job_get_data(struct job *);
2305 struct bufferevent *job_get_event(struct job *);
2306 void		 job_kill_all(void);
2307 int		 job_still_running(void);
2308 void		 job_print_summary(struct cmdq_item *, int);
2309 
2310 /* environ.c */
2311 struct environ *environ_create(void);
2312 void	environ_free(struct environ *);
2313 struct environ_entry *environ_first(struct environ *);
2314 struct environ_entry *environ_next(struct environ_entry *);
2315 void	environ_copy(struct environ *, struct environ *);
2316 struct environ_entry *environ_find(struct environ *, const char *);
2317 void printflike(4, 5) environ_set(struct environ *, const char *, int,
2318 	    const char *, ...);
2319 void	environ_clear(struct environ *, const char *);
2320 void	environ_put(struct environ *, const char *, int);
2321 void	environ_unset(struct environ *, const char *);
2322 void	environ_update(struct options *, struct environ *, struct environ *);
2323 void	environ_push(struct environ *);
2324 void printflike(2, 3) environ_log(struct environ *, const char *, ...);
2325 struct environ *environ_for_session(struct session *, int);
2326 
2327 /* tty.c */
2328 void	tty_create_log(void);
2329 int	tty_window_bigger(struct tty *);
2330 int	tty_window_offset(struct tty *, u_int *, u_int *, u_int *, u_int *);
2331 void	tty_update_window_offset(struct window *);
2332 void	tty_update_client_offset(struct client *);
2333 void	tty_raw(struct tty *, const char *);
2334 void	tty_attributes(struct tty *, const struct grid_cell *,
2335 	    const struct grid_cell *, struct colour_palette *,
2336 	    struct hyperlinks *);
2337 void	tty_reset(struct tty *);
2338 void	tty_region_off(struct tty *);
2339 void	tty_margin_off(struct tty *);
2340 void	tty_cursor(struct tty *, u_int, u_int);
2341 void	tty_clipboard_query(struct tty *);
2342 void	tty_putcode(struct tty *, enum tty_code_code);
2343 void	tty_putcode_i(struct tty *, enum tty_code_code, int);
2344 void	tty_putcode_ii(struct tty *, enum tty_code_code, int, int);
2345 void	tty_putcode_iii(struct tty *, enum tty_code_code, int, int, int);
2346 void	tty_putcode_s(struct tty *, enum tty_code_code, const char *);
2347 void	tty_putcode_ss(struct tty *, enum tty_code_code, const char *,
2348 	    const char *);
2349 void	tty_puts(struct tty *, const char *);
2350 void	tty_putc(struct tty *, u_char);
2351 void	tty_putn(struct tty *, const void *, size_t, u_int);
2352 void	tty_cell(struct tty *, const struct grid_cell *,
2353 	    const struct grid_cell *, struct colour_palette *,
2354 	    struct hyperlinks *);
2355 int	tty_init(struct tty *, struct client *);
2356 void	tty_resize(struct tty *);
2357 void	tty_set_size(struct tty *, u_int, u_int, u_int, u_int);
2358 void	tty_start_tty(struct tty *);
2359 void	tty_send_requests(struct tty *);
2360 void	tty_repeat_requests(struct tty *);
2361 void	tty_stop_tty(struct tty *);
2362 void	tty_set_title(struct tty *, const char *);
2363 void	tty_set_path(struct tty *, const char *);
2364 void	tty_update_mode(struct tty *, int, struct screen *);
2365 void	tty_draw_line(struct tty *, struct screen *, u_int, u_int, u_int,
2366 	    u_int, u_int, const struct grid_cell *, struct colour_palette *);
2367 
2368 #ifdef ENABLE_SIXEL
2369 void	tty_draw_images(struct client *, struct window_pane *, struct screen *);
2370 #endif
2371 
2372 void	tty_sync_start(struct tty *);
2373 void	tty_sync_end(struct tty *);
2374 int	tty_open(struct tty *, char **);
2375 void	tty_close(struct tty *);
2376 void	tty_free(struct tty *);
2377 void	tty_update_features(struct tty *);
2378 void	tty_set_selection(struct tty *, const char *, const char *, size_t);
2379 void	tty_write(void (*)(struct tty *, const struct tty_ctx *),
2380 	    struct tty_ctx *);
2381 void	tty_cmd_alignmenttest(struct tty *, const struct tty_ctx *);
2382 void	tty_cmd_cell(struct tty *, const struct tty_ctx *);
2383 void	tty_cmd_cells(struct tty *, const struct tty_ctx *);
2384 void	tty_cmd_clearendofline(struct tty *, const struct tty_ctx *);
2385 void	tty_cmd_clearendofscreen(struct tty *, const struct tty_ctx *);
2386 void	tty_cmd_clearline(struct tty *, const struct tty_ctx *);
2387 void	tty_cmd_clearscreen(struct tty *, const struct tty_ctx *);
2388 void	tty_cmd_clearstartofline(struct tty *, const struct tty_ctx *);
2389 void	tty_cmd_clearstartofscreen(struct tty *, const struct tty_ctx *);
2390 void	tty_cmd_deletecharacter(struct tty *, const struct tty_ctx *);
2391 void	tty_cmd_clearcharacter(struct tty *, const struct tty_ctx *);
2392 void	tty_cmd_deleteline(struct tty *, const struct tty_ctx *);
2393 void	tty_cmd_erasecharacter(struct tty *, const struct tty_ctx *);
2394 void	tty_cmd_insertcharacter(struct tty *, const struct tty_ctx *);
2395 void	tty_cmd_insertline(struct tty *, const struct tty_ctx *);
2396 void	tty_cmd_linefeed(struct tty *, const struct tty_ctx *);
2397 void	tty_cmd_scrollup(struct tty *, const struct tty_ctx *);
2398 void	tty_cmd_scrolldown(struct tty *, const struct tty_ctx *);
2399 void	tty_cmd_reverseindex(struct tty *, const struct tty_ctx *);
2400 void	tty_cmd_setselection(struct tty *, const struct tty_ctx *);
2401 void	tty_cmd_rawstring(struct tty *, const struct tty_ctx *);
2402 
2403 #ifdef ENABLE_SIXEL
2404 void	tty_cmd_sixelimage(struct tty *, const struct tty_ctx *);
2405 #endif
2406 
2407 void	tty_cmd_syncstart(struct tty *, const struct tty_ctx *);
2408 void	tty_default_colours(struct grid_cell *, struct window_pane *);
2409 
2410 /* tty-term.c */
2411 extern struct tty_terms tty_terms;
2412 u_int		 tty_term_ncodes(void);
2413 void		 tty_term_apply(struct tty_term *, const char *, int);
2414 void		 tty_term_apply_overrides(struct tty_term *);
2415 struct tty_term *tty_term_create(struct tty *, char *, char **, u_int, int *,
2416 		     char **);
2417 void		 tty_term_free(struct tty_term *);
2418 int		 tty_term_read_list(const char *, int, char ***, u_int *,
2419 		     char **);
2420 void		 tty_term_free_list(char **, u_int);
2421 int		 tty_term_has(struct tty_term *, enum tty_code_code);
2422 const char	*tty_term_string(struct tty_term *, enum tty_code_code);
2423 const char	*tty_term_string_i(struct tty_term *, enum tty_code_code, int);
2424 const char	*tty_term_string_ii(struct tty_term *, enum tty_code_code, int,
2425 		     int);
2426 const char	*tty_term_string_iii(struct tty_term *, enum tty_code_code, int,
2427 		     int, int);
2428 const char	*tty_term_string_s(struct tty_term *, enum tty_code_code,
2429 		     const char *);
2430 const char	*tty_term_string_ss(struct tty_term *, enum tty_code_code,
2431 		     const char *, const char *);
2432 int		 tty_term_number(struct tty_term *, enum tty_code_code);
2433 int		 tty_term_flag(struct tty_term *, enum tty_code_code);
2434 const char	*tty_term_describe(struct tty_term *, enum tty_code_code);
2435 
2436 /* tty-features.c */
2437 void		 tty_add_features(int *, const char *, const char *);
2438 const char	*tty_get_features(int);
2439 int		 tty_apply_features(struct tty_term *, int);
2440 void		 tty_default_features(int *, const char *, u_int);
2441 
2442 /* tty-acs.c */
2443 int		 tty_acs_needed(struct tty *);
2444 const char	*tty_acs_get(struct tty *, u_char);
2445 int		 tty_acs_reverse_get(struct tty *, const char *, size_t);
2446 const struct utf8_data *tty_acs_double_borders(int);
2447 const struct utf8_data *tty_acs_heavy_borders(int);
2448 const struct utf8_data *tty_acs_rounded_borders(int);
2449 
2450 /* tty-keys.c */
2451 void		tty_keys_build(struct tty *);
2452 void		tty_keys_free(struct tty *);
2453 int		tty_keys_next(struct tty *);
2454 
2455 /* arguments.c */
2456 void		 args_set(struct args *, u_char, struct args_value *, int);
2457 struct args 	*args_create(void);
2458 struct args	*args_parse(const struct args_parse *, struct args_value *,
2459 		     u_int, char **);
2460 struct args	*args_copy(struct args *, int, char **);
2461 void		 args_to_vector(struct args *, int *, char ***);
2462 struct args_value *args_from_vector(int, char **);
2463 void		 args_free_value(struct args_value *);
2464 void		 args_free_values(struct args_value *, u_int);
2465 void		 args_free(struct args *);
2466 char		*args_print(struct args *);
2467 char		*args_escape(const char *);
2468 int		 args_has(struct args *, u_char);
2469 const char	*args_get(struct args *, u_char);
2470 u_char		 args_first(struct args *, struct args_entry **);
2471 u_char		 args_next(struct args_entry **);
2472 u_int		 args_count(struct args *);
2473 struct args_value *args_values(struct args *);
2474 struct args_value *args_value(struct args *, u_int);
2475 const char	*args_string(struct args *, u_int);
2476 struct cmd_list	*args_make_commands_now(struct cmd *, struct cmdq_item *,
2477 		     u_int, int);
2478 struct args_command_state *args_make_commands_prepare(struct cmd *,
2479 		     struct cmdq_item *, u_int, const char *, int, int);
2480 struct cmd_list *args_make_commands(struct args_command_state *, int, char **,
2481 		     char **);
2482 void		 args_make_commands_free(struct args_command_state *);
2483 char		*args_make_commands_get_command(struct args_command_state *);
2484 struct args_value *args_first_value(struct args *, u_char);
2485 struct args_value *args_next_value(struct args_value *);
2486 long long	 args_strtonum(struct args *, u_char, long long, long long,
2487 		     char **);
2488 long long	 args_strtonum_and_expand(struct args *, u_char, long long,
2489 		     long long, struct cmdq_item *, char **);
2490 long long	 args_percentage(struct args *, u_char, long long,
2491 		     long long, long long, char **);
2492 long long	 args_string_percentage(const char *, long long, long long,
2493 		     long long, char **);
2494 long long	 args_percentage_and_expand(struct args *, u_char, long long,
2495 		     long long, long long, struct cmdq_item *, char **);
2496 long long	 args_string_percentage_and_expand(const char *, long long,
2497 		     long long, long long, struct cmdq_item *, char **);
2498 
2499 /* cmd-find.c */
2500 int		 cmd_find_target(struct cmd_find_state *, struct cmdq_item *,
2501 		     const char *, enum cmd_find_type, int);
2502 struct client	*cmd_find_best_client(struct session *);
2503 struct client	*cmd_find_client(struct cmdq_item *, const char *, int);
2504 void		 cmd_find_clear_state(struct cmd_find_state *, int);
2505 int		 cmd_find_empty_state(struct cmd_find_state *);
2506 int		 cmd_find_valid_state(struct cmd_find_state *);
2507 void		 cmd_find_copy_state(struct cmd_find_state *,
2508 		     struct cmd_find_state *);
2509 void		 cmd_find_from_session(struct cmd_find_state *,
2510 		     struct session *, int);
2511 void		 cmd_find_from_winlink(struct cmd_find_state *,
2512 		     struct winlink *, int);
2513 int		 cmd_find_from_session_window(struct cmd_find_state *,
2514 		     struct session *, struct window *, int);
2515 int		 cmd_find_from_window(struct cmd_find_state *, struct window *,
2516 		     int);
2517 void		 cmd_find_from_winlink_pane(struct cmd_find_state *,
2518 		     struct winlink *, struct window_pane *, int);
2519 int		 cmd_find_from_pane(struct cmd_find_state *,
2520 		     struct window_pane *, int);
2521 int		 cmd_find_from_client(struct cmd_find_state *, struct client *,
2522 		     int);
2523 int		 cmd_find_from_mouse(struct cmd_find_state *,
2524 		     struct mouse_event *, int);
2525 int		 cmd_find_from_nothing(struct cmd_find_state *, int);
2526 
2527 /* cmd.c */
2528 extern const struct cmd_entry *cmd_table[];
2529 void printflike(3, 4) cmd_log_argv(int, char **, const char *, ...);
2530 void		 cmd_prepend_argv(int *, char ***, const char *);
2531 void		 cmd_append_argv(int *, char ***, const char *);
2532 int		 cmd_pack_argv(int, char **, char *, size_t);
2533 int		 cmd_unpack_argv(char *, size_t, int, char ***);
2534 char	       **cmd_copy_argv(int, char **);
2535 void		 cmd_free_argv(int, char **);
2536 char		*cmd_stringify_argv(int, char **);
2537 char		*cmd_get_alias(const char *);
2538 const struct cmd_entry *cmd_get_entry(struct cmd *);
2539 struct args	*cmd_get_args(struct cmd *);
2540 u_int		 cmd_get_group(struct cmd *);
2541 void		 cmd_get_source(struct cmd *, const char **, u_int *);
2542 struct cmd	*cmd_parse(struct args_value *, u_int, const char *, u_int,
2543 		     char **);
2544 struct cmd	*cmd_copy(struct cmd *, int, char **);
2545 void		 cmd_free(struct cmd *);
2546 char		*cmd_print(struct cmd *);
2547 struct cmd_list	*cmd_list_new(void);
2548 struct cmd_list	*cmd_list_copy(struct cmd_list *, int, char **);
2549 void		 cmd_list_append(struct cmd_list *, struct cmd *);
2550 void		 cmd_list_append_all(struct cmd_list *, struct cmd_list *);
2551 void		 cmd_list_move(struct cmd_list *, struct cmd_list *);
2552 void		 cmd_list_free(struct cmd_list *);
2553 char		*cmd_list_print(struct cmd_list *, int);
2554 struct cmd	*cmd_list_first(struct cmd_list *);
2555 struct cmd	*cmd_list_next(struct cmd *);
2556 int		 cmd_list_all_have(struct cmd_list *, int);
2557 int		 cmd_list_any_have(struct cmd_list *, int);
2558 int		 cmd_mouse_at(struct window_pane *, struct mouse_event *,
2559 		     u_int *, u_int *, int);
2560 struct winlink	*cmd_mouse_window(struct mouse_event *, struct session **);
2561 struct window_pane *cmd_mouse_pane(struct mouse_event *, struct session **,
2562 		     struct winlink **);
2563 char		*cmd_template_replace(const char *, const char *, int);
2564 
2565 /* cmd-attach-session.c */
2566 enum cmd_retval	 cmd_attach_session(struct cmdq_item *, const char *, int, int,
2567 		     int, const char *, int, const char *);
2568 
2569 /* cmd-parse.c */
2570 void		 cmd_parse_empty(struct cmd_parse_input *);
2571 struct cmd_parse_result *cmd_parse_from_file(FILE *, struct cmd_parse_input *);
2572 struct cmd_parse_result *cmd_parse_from_string(const char *,
2573 		     struct cmd_parse_input *);
2574 enum cmd_parse_status cmd_parse_and_insert(const char *,
2575 		     struct cmd_parse_input *, struct cmdq_item *,
2576 		     struct cmdq_state *, char **);
2577 enum cmd_parse_status cmd_parse_and_append(const char *,
2578 		     struct cmd_parse_input *, struct client *,
2579 		     struct cmdq_state *, char **);
2580 struct cmd_parse_result *cmd_parse_from_buffer(const void *, size_t,
2581 		     struct cmd_parse_input *);
2582 struct cmd_parse_result *cmd_parse_from_arguments(struct args_value *, u_int,
2583 		     struct cmd_parse_input *);
2584 
2585 /* cmd-queue.c */
2586 struct cmdq_state *cmdq_new_state(struct cmd_find_state *, struct key_event *,
2587 		     int);
2588 struct cmdq_state *cmdq_link_state(struct cmdq_state *);
2589 struct cmdq_state *cmdq_copy_state(struct cmdq_state *,
2590 		     struct cmd_find_state *);
2591 void		  cmdq_free_state(struct cmdq_state *);
2592 void printflike(3, 4) cmdq_add_format(struct cmdq_state *, const char *,
2593 		     const char *, ...);
2594 void		  cmdq_add_formats(struct cmdq_state *, struct format_tree *);
2595 void		  cmdq_merge_formats(struct cmdq_item *, struct format_tree *);
2596 struct cmdq_list *cmdq_new(void);
2597 void cmdq_free(struct cmdq_list *);
2598 const char	 *cmdq_get_name(struct cmdq_item *);
2599 struct client	 *cmdq_get_client(struct cmdq_item *);
2600 struct client	 *cmdq_get_target_client(struct cmdq_item *);
2601 struct cmdq_state *cmdq_get_state(struct cmdq_item *);
2602 struct cmd_find_state *cmdq_get_target(struct cmdq_item *);
2603 struct cmd_find_state *cmdq_get_source(struct cmdq_item *);
2604 struct key_event *cmdq_get_event(struct cmdq_item *);
2605 struct cmd_find_state *cmdq_get_current(struct cmdq_item *);
2606 int		  cmdq_get_flags(struct cmdq_item *);
2607 struct cmdq_item *cmdq_get_command(struct cmd_list *, struct cmdq_state *);
2608 #define cmdq_get_callback(cb, data) cmdq_get_callback1(#cb, cb, data)
2609 struct cmdq_item *cmdq_get_callback1(const char *, cmdq_cb, void *);
2610 struct cmdq_item *cmdq_get_error(const char *);
2611 struct cmdq_item *cmdq_insert_after(struct cmdq_item *, struct cmdq_item *);
2612 struct cmdq_item *cmdq_append(struct client *, struct cmdq_item *);
2613 void printflike(4, 5) cmdq_insert_hook(struct session *, struct cmdq_item *,
2614 		     struct cmd_find_state *, const char *, ...);
2615 void		 cmdq_continue(struct cmdq_item *);
2616 u_int		 cmdq_next(struct client *);
2617 struct cmdq_item *cmdq_running(struct client *);
2618 void		 cmdq_guard(struct cmdq_item *, const char *, int);
2619 void printflike(2, 3) cmdq_print(struct cmdq_item *, const char *, ...);
2620 void 		 cmdq_print_data(struct cmdq_item *, int, struct evbuffer *);
2621 void printflike(2, 3) cmdq_error(struct cmdq_item *, const char *, ...);
2622 
2623 /* cmd-wait-for.c */
2624 void	cmd_wait_for_flush(void);
2625 
2626 /* client.c */
2627 int	client_main(struct event_base *, int, char **, uint64_t, int);
2628 
2629 /* key-bindings.c */
2630 struct key_table *key_bindings_get_table(const char *, int);
2631 struct key_table *key_bindings_first_table(void);
2632 struct key_table *key_bindings_next_table(struct key_table *);
2633 void	 key_bindings_unref_table(struct key_table *);
2634 struct key_binding *key_bindings_get(struct key_table *, key_code);
2635 struct key_binding *key_bindings_get_default(struct key_table *, key_code);
2636 struct key_binding *key_bindings_first(struct key_table *);
2637 struct key_binding *key_bindings_next(struct key_table *, struct key_binding *);
2638 void	 key_bindings_add(const char *, key_code, const char *, int,
2639 	     struct cmd_list *);
2640 void	 key_bindings_remove(const char *, key_code);
2641 void	 key_bindings_reset(const char *, key_code);
2642 void	 key_bindings_remove_table(const char *);
2643 void	 key_bindings_reset_table(const char *);
2644 void	 key_bindings_init(void);
2645 struct cmdq_item *key_bindings_dispatch(struct key_binding *,
2646 	     struct cmdq_item *, struct client *, struct key_event *,
2647 	     struct cmd_find_state *);
2648 
2649 /* key-string.c */
2650 key_code	 key_string_lookup_string(const char *);
2651 const char	*key_string_lookup_key(key_code, int);
2652 
2653 /* alerts.c */
2654 void	alerts_reset_all(void);
2655 void	alerts_queue(struct window *, int);
2656 void	alerts_check_session(struct session *);
2657 
2658 /* file.c */
2659 int	 file_cmp(struct client_file *, struct client_file *);
2660 RB_PROTOTYPE(client_files, client_file, entry, file_cmp);
2661 struct client_file *file_create_with_peer(struct tmuxpeer *,
2662 	    struct client_files *, int, client_file_cb, void *);
2663 struct client_file *file_create_with_client(struct client *, int,
2664 	    client_file_cb, void *);
2665 void	 file_free(struct client_file *);
2666 void	 file_fire_done(struct client_file *);
2667 void	 file_fire_read(struct client_file *);
2668 int	 file_can_print(struct client *);
2669 void printflike(2, 3) file_print(struct client *, const char *, ...);
2670 void printflike(2, 0) file_vprint(struct client *, const char *, va_list);
2671 void	 file_print_buffer(struct client *, void *, size_t);
2672 void printflike(2, 3) file_error(struct client *, const char *, ...);
2673 void	 file_write(struct client *, const char *, int, const void *, size_t,
2674 	     client_file_cb, void *);
2675 struct client_file *file_read(struct client *, const char *, client_file_cb,
2676 	     void *);
2677 void	 file_cancel(struct client_file *);
2678 void	 file_push(struct client_file *);
2679 int	 file_write_left(struct client_files *);
2680 void	 file_write_open(struct client_files *, struct tmuxpeer *,
2681 	     struct imsg *, int, int, client_file_cb, void *);
2682 void	 file_write_data(struct client_files *, struct imsg *);
2683 void	 file_write_close(struct client_files *, struct imsg *);
2684 void	 file_read_open(struct client_files *, struct tmuxpeer *, struct imsg *,
2685 	     int, int, client_file_cb, void *);
2686 void	 file_write_ready(struct client_files *, struct imsg *);
2687 void	 file_read_data(struct client_files *, struct imsg *);
2688 void	 file_read_done(struct client_files *, struct imsg *);
2689 void	 file_read_cancel(struct client_files *, struct imsg *);
2690 
2691 /* server.c */
2692 extern struct tmuxproc *server_proc;
2693 extern struct clients clients;
2694 extern struct cmd_find_state marked_pane;
2695 extern struct message_list message_log;
2696 extern time_t current_time;
2697 void	 server_set_marked(struct session *, struct winlink *,
2698 	     struct window_pane *);
2699 void	 server_clear_marked(void);
2700 int	 server_is_marked(struct session *, struct winlink *,
2701 	     struct window_pane *);
2702 int	 server_check_marked(void);
2703 int	 server_start(struct tmuxproc *, int, struct event_base *, int, char *);
2704 void	 server_update_socket(void);
2705 void	 server_add_accept(int);
2706 void printflike(1, 2) server_add_message(const char *, ...);
2707 int	 server_create_socket(int, char **);
2708 
2709 /* server-client.c */
2710 RB_PROTOTYPE(client_windows, client_window, entry, server_client_window_cmp);
2711 u_int	 server_client_how_many(void);
2712 void	 server_client_set_overlay(struct client *, u_int, overlay_check_cb,
2713 	     overlay_mode_cb, overlay_draw_cb, overlay_key_cb,
2714 	     overlay_free_cb, overlay_resize_cb, void *);
2715 void	 server_client_clear_overlay(struct client *);
2716 void	 server_client_overlay_range(u_int, u_int, u_int, u_int, u_int, u_int,
2717 	     u_int, struct overlay_ranges *);
2718 void	 server_client_set_key_table(struct client *, const char *);
2719 const char *server_client_get_key_table(struct client *);
2720 int	 server_client_check_nested(struct client *);
2721 int	 server_client_handle_key(struct client *, struct key_event *);
2722 struct client *server_client_create(int);
2723 int	 server_client_open(struct client *, char **);
2724 void	 server_client_unref(struct client *);
2725 void	 server_client_set_session(struct client *, struct session *);
2726 void	 server_client_lost(struct client *);
2727 void	 server_client_suspend(struct client *);
2728 void	 server_client_detach(struct client *, enum msgtype);
2729 void	 server_client_exec(struct client *, const char *);
2730 void	 server_client_loop(void);
2731 void	 server_client_push_stdout(struct client *);
2732 void	 server_client_push_stderr(struct client *);
2733 const char *server_client_get_cwd(struct client *, struct session *);
2734 void	 server_client_set_flags(struct client *, const char *);
2735 const char *server_client_get_flags(struct client *);
2736 struct client_window *server_client_get_client_window(struct client *, u_int);
2737 struct client_window *server_client_add_client_window(struct client *, u_int);
2738 struct window_pane *server_client_get_pane(struct client *);
2739 void	 server_client_set_pane(struct client *, struct window_pane *);
2740 void	 server_client_remove_pane(struct window_pane *);
2741 void	 server_client_print(struct client *, int, struct evbuffer *);
2742 
2743 /* server-fn.c */
2744 void	 server_redraw_client(struct client *);
2745 void	 server_status_client(struct client *);
2746 void	 server_redraw_session(struct session *);
2747 void	 server_redraw_session_group(struct session *);
2748 void	 server_status_session(struct session *);
2749 void	 server_status_session_group(struct session *);
2750 void	 server_redraw_window(struct window *);
2751 void	 server_redraw_window_borders(struct window *);
2752 void	 server_status_window(struct window *);
2753 void	 server_lock(void);
2754 void	 server_lock_session(struct session *);
2755 void	 server_lock_client(struct client *);
2756 void	 server_kill_pane(struct window_pane *);
2757 void	 server_kill_window(struct window *, int);
2758 void	 server_renumber_session(struct session *);
2759 void	 server_renumber_all(void);
2760 int	 server_link_window(struct session *,
2761 	     struct winlink *, struct session *, int, int, int, char **);
2762 void	 server_unlink_window(struct session *, struct winlink *);
2763 void	 server_destroy_pane(struct window_pane *, int);
2764 void	 server_destroy_session(struct session *);
2765 void	 server_check_unattached(void);
2766 void	 server_unzoom_window(struct window *);
2767 
2768 /* status.c */
2769 extern char	**status_prompt_hlist[];
2770 extern u_int	  status_prompt_hsize[];
2771 void	 status_timer_start(struct client *);
2772 void	 status_timer_start_all(void);
2773 void	 status_update_cache(struct session *);
2774 int	 status_at_line(struct client *);
2775 u_int	 status_line_size(struct client *);
2776 struct style_range *status_get_range(struct client *, u_int, u_int);
2777 void	 status_init(struct client *);
2778 void	 status_free(struct client *);
2779 int	 status_redraw(struct client *);
2780 void printflike(5, 6) status_message_set(struct client *, int, int, int,
2781 	     const char *, ...);
2782 void	 status_message_clear(struct client *);
2783 int	 status_message_redraw(struct client *);
2784 void	 status_prompt_set(struct client *, struct cmd_find_state *,
2785 	     const char *, const char *, prompt_input_cb, prompt_free_cb,
2786 	     void *, int, enum prompt_type);
2787 void	 status_prompt_clear(struct client *);
2788 int	 status_prompt_redraw(struct client *);
2789 int	 status_prompt_key(struct client *, key_code);
2790 void	 status_prompt_update(struct client *, const char *, const char *);
2791 void	 status_prompt_load_history(void);
2792 void	 status_prompt_save_history(void);
2793 const char *status_prompt_type_string(u_int);
2794 enum prompt_type status_prompt_type(const char *type);
2795 
2796 /* resize.c */
2797 void	 resize_window(struct window *, u_int, u_int, int, int);
2798 void	 default_window_size(struct client *, struct session *, struct window *,
2799 	     u_int *, u_int *, u_int *, u_int *, int);
2800 void	 recalculate_size(struct window *, int);
2801 void	 recalculate_sizes(void);
2802 void	 recalculate_sizes_now(int);
2803 
2804 /* input.c */
2805 struct input_ctx *input_init(struct window_pane *, struct bufferevent *,
2806 	     struct colour_palette *);
2807 void	 input_free(struct input_ctx *);
2808 void	 input_reset(struct input_ctx *, int);
2809 struct evbuffer *input_pending(struct input_ctx *);
2810 void	 input_parse_pane(struct window_pane *);
2811 void	 input_parse_buffer(struct window_pane *, u_char *, size_t);
2812 void	 input_parse_screen(struct input_ctx *, struct screen *,
2813 	     screen_write_init_ctx_cb, void *, u_char *, size_t);
2814 void	 input_reply_clipboard(struct bufferevent *, const char *, size_t,
2815 	     const char *);
2816 
2817 /* input-key.c */
2818 void	 input_key_build(void);
2819 int	 input_key_pane(struct window_pane *, key_code, struct mouse_event *);
2820 int	 input_key(struct screen *, struct bufferevent *, key_code);
2821 int	 input_key_get_mouse(struct screen *, struct mouse_event *, u_int,
2822 	     u_int, const char **, size_t *);
2823 
2824 /* colour.c */
2825 int	 colour_find_rgb(u_char, u_char, u_char);
2826 int	 colour_join_rgb(u_char, u_char, u_char);
2827 void	 colour_split_rgb(int, u_char *, u_char *, u_char *);
2828 int	 colour_force_rgb(int);
2829 const char *colour_tostring(int);
2830 int	 colour_fromstring(const char *s);
2831 int	 colour_256toRGB(int);
2832 int	 colour_256to16(int);
2833 int	 colour_byname(const char *);
2834 int	 colour_parseX11(const char *);
2835 void	 colour_palette_init(struct colour_palette *);
2836 void	 colour_palette_clear(struct colour_palette *);
2837 void	 colour_palette_free(struct colour_palette *);
2838 int	 colour_palette_get(struct colour_palette *, int);
2839 int	 colour_palette_set(struct colour_palette *, int, int);
2840 void	 colour_palette_from_option(struct colour_palette *, struct options *);
2841 
2842 /* attributes.c */
2843 const char *attributes_tostring(int);
2844 int	 attributes_fromstring(const char *);
2845 
2846 /* grid.c */
2847 extern const struct grid_cell grid_default_cell;
2848 void	 grid_empty_line(struct grid *, u_int, u_int);
2849 int	 grid_cells_equal(const struct grid_cell *, const struct grid_cell *);
2850 int	 grid_cells_look_equal(const struct grid_cell *,
2851 	     const struct grid_cell *);
2852 struct grid *grid_create(u_int, u_int, u_int);
2853 void	 grid_destroy(struct grid *);
2854 int	 grid_compare(struct grid *, struct grid *);
2855 void	 grid_collect_history(struct grid *);
2856 void	 grid_remove_history(struct grid *, u_int );
2857 void	 grid_scroll_history(struct grid *, u_int);
2858 void	 grid_scroll_history_region(struct grid *, u_int, u_int, u_int);
2859 void	 grid_clear_history(struct grid *);
2860 const struct grid_line *grid_peek_line(struct grid *, u_int);
2861 void	 grid_get_cell(struct grid *, u_int, u_int, struct grid_cell *);
2862 void	 grid_set_cell(struct grid *, u_int, u_int, const struct grid_cell *);
2863 void	 grid_set_padding(struct grid *, u_int, u_int);
2864 void	 grid_set_cells(struct grid *, u_int, u_int, const struct grid_cell *,
2865 	     const char *, size_t);
2866 struct grid_line *grid_get_line(struct grid *, u_int);
2867 void	 grid_adjust_lines(struct grid *, u_int);
2868 void	 grid_clear(struct grid *, u_int, u_int, u_int, u_int, u_int);
2869 void	 grid_clear_lines(struct grid *, u_int, u_int, u_int);
2870 void	 grid_move_lines(struct grid *, u_int, u_int, u_int, u_int);
2871 void	 grid_move_cells(struct grid *, u_int, u_int, u_int, u_int, u_int);
2872 char	*grid_string_cells(struct grid *, u_int, u_int, u_int,
2873 	     struct grid_cell **, int, struct screen *);
2874 void	 grid_duplicate_lines(struct grid *, u_int, struct grid *, u_int,
2875 	     u_int);
2876 void	 grid_reflow(struct grid *, u_int);
2877 void	 grid_wrap_position(struct grid *, u_int, u_int, u_int *, u_int *);
2878 void	 grid_unwrap_position(struct grid *, u_int *, u_int *, u_int, u_int);
2879 u_int	 grid_line_length(struct grid *, u_int);
2880 
2881 /* grid-reader.c */
2882 void	 grid_reader_start(struct grid_reader *, struct grid *, u_int, u_int);
2883 void	 grid_reader_get_cursor(struct grid_reader *, u_int *, u_int *);
2884 u_int	 grid_reader_line_length(struct grid_reader *);
2885 int	 grid_reader_in_set(struct grid_reader *, const char *);
2886 void	 grid_reader_cursor_right(struct grid_reader *, int, int);
2887 void	 grid_reader_cursor_left(struct grid_reader *, int);
2888 void	 grid_reader_cursor_down(struct grid_reader *);
2889 void	 grid_reader_cursor_up(struct grid_reader *);
2890 void	 grid_reader_cursor_start_of_line(struct grid_reader *, int);
2891 void	 grid_reader_cursor_end_of_line(struct grid_reader *, int, int);
2892 void	 grid_reader_cursor_next_word(struct grid_reader *, const char *);
2893 void	 grid_reader_cursor_next_word_end(struct grid_reader *, const char *);
2894 void	 grid_reader_cursor_previous_word(struct grid_reader *, const char *,
2895 	     int, int);
2896 int	 grid_reader_cursor_jump(struct grid_reader *,
2897 	     const struct utf8_data *);
2898 int	 grid_reader_cursor_jump_back(struct grid_reader *,
2899 	     const struct utf8_data *);
2900 void	 grid_reader_cursor_back_to_indentation(struct grid_reader *);
2901 
2902 /* grid-view.c */
2903 void	 grid_view_get_cell(struct grid *, u_int, u_int, struct grid_cell *);
2904 void	 grid_view_set_cell(struct grid *, u_int, u_int,
2905 	     const struct grid_cell *);
2906 void	 grid_view_set_padding(struct grid *, u_int, u_int);
2907 void	 grid_view_set_cells(struct grid *, u_int, u_int,
2908 	     const struct grid_cell *, const char *, size_t);
2909 void	 grid_view_clear_history(struct grid *, u_int);
2910 void	 grid_view_clear(struct grid *, u_int, u_int, u_int, u_int, u_int);
2911 void	 grid_view_scroll_region_up(struct grid *, u_int, u_int, u_int);
2912 void	 grid_view_scroll_region_down(struct grid *, u_int, u_int, u_int);
2913 void	 grid_view_insert_lines(struct grid *, u_int, u_int, u_int);
2914 void	 grid_view_insert_lines_region(struct grid *, u_int, u_int, u_int,
2915 	     u_int);
2916 void	 grid_view_delete_lines(struct grid *, u_int, u_int, u_int);
2917 void	 grid_view_delete_lines_region(struct grid *, u_int, u_int, u_int,
2918 	     u_int);
2919 void	 grid_view_insert_cells(struct grid *, u_int, u_int, u_int, u_int);
2920 void	 grid_view_delete_cells(struct grid *, u_int, u_int, u_int, u_int);
2921 char	*grid_view_string_cells(struct grid *, u_int, u_int, u_int);
2922 
2923 /* screen-write.c */
2924 void	 screen_write_make_list(struct screen *);
2925 void	 screen_write_free_list(struct screen *);
2926 void	 screen_write_start_pane(struct screen_write_ctx *,
2927 	     struct window_pane *, struct screen *);
2928 void	 screen_write_start(struct screen_write_ctx *, struct screen *);
2929 void	 screen_write_start_callback(struct screen_write_ctx *, struct screen *,
2930 	     screen_write_init_ctx_cb, void *);
2931 void	 screen_write_stop(struct screen_write_ctx *);
2932 void	 screen_write_reset(struct screen_write_ctx *);
2933 size_t printflike(1, 2) screen_write_strlen(const char *, ...);
2934 int printflike(7, 8) screen_write_text(struct screen_write_ctx *, u_int, u_int,
2935 	     u_int, int, const struct grid_cell *, const char *, ...);
2936 void printflike(3, 4) screen_write_puts(struct screen_write_ctx *,
2937 	     const struct grid_cell *, const char *, ...);
2938 void printflike(4, 5) screen_write_nputs(struct screen_write_ctx *,
2939 	     ssize_t, const struct grid_cell *, const char *, ...);
2940 void printflike(4, 0) screen_write_vnputs(struct screen_write_ctx *, ssize_t,
2941 	     const struct grid_cell *, const char *, va_list);
2942 void	 screen_write_putc(struct screen_write_ctx *, const struct grid_cell *,
2943 	     u_char);
2944 void	 screen_write_fast_copy(struct screen_write_ctx *, struct screen *,
2945 	     u_int, u_int, u_int, u_int);
2946 void	 screen_write_hline(struct screen_write_ctx *, u_int, int, int,
2947 	     enum box_lines, const struct grid_cell *);
2948 void	 screen_write_vline(struct screen_write_ctx *, u_int, int, int);
2949 void	 screen_write_menu(struct screen_write_ctx *, struct menu *, int,
2950 	     enum box_lines, const struct grid_cell *, const struct grid_cell *,
2951 	     const struct grid_cell *);
2952 void	 screen_write_box(struct screen_write_ctx *, u_int, u_int,
2953              enum box_lines, const struct grid_cell *, const char *);
2954 void	 screen_write_preview(struct screen_write_ctx *, struct screen *, u_int,
2955 	     u_int);
2956 void	 screen_write_backspace(struct screen_write_ctx *);
2957 void	 screen_write_mode_set(struct screen_write_ctx *, int);
2958 void	 screen_write_mode_clear(struct screen_write_ctx *, int);
2959 void	 screen_write_cursorup(struct screen_write_ctx *, u_int);
2960 void	 screen_write_cursordown(struct screen_write_ctx *, u_int);
2961 void	 screen_write_cursorright(struct screen_write_ctx *, u_int);
2962 void	 screen_write_cursorleft(struct screen_write_ctx *, u_int);
2963 void	 screen_write_alignmenttest(struct screen_write_ctx *);
2964 void	 screen_write_insertcharacter(struct screen_write_ctx *, u_int, u_int);
2965 void	 screen_write_deletecharacter(struct screen_write_ctx *, u_int, u_int);
2966 void	 screen_write_clearcharacter(struct screen_write_ctx *, u_int, u_int);
2967 void	 screen_write_insertline(struct screen_write_ctx *, u_int, u_int);
2968 void	 screen_write_deleteline(struct screen_write_ctx *, u_int, u_int);
2969 void	 screen_write_clearline(struct screen_write_ctx *, u_int);
2970 void	 screen_write_clearendofline(struct screen_write_ctx *, u_int);
2971 void	 screen_write_clearstartofline(struct screen_write_ctx *, u_int);
2972 void	 screen_write_cursormove(struct screen_write_ctx *, int, int, int);
2973 void	 screen_write_reverseindex(struct screen_write_ctx *, u_int);
2974 void	 screen_write_scrollregion(struct screen_write_ctx *, u_int, u_int);
2975 void	 screen_write_linefeed(struct screen_write_ctx *, int, u_int);
2976 void	 screen_write_scrollup(struct screen_write_ctx *, u_int, u_int);
2977 void	 screen_write_scrolldown(struct screen_write_ctx *, u_int, u_int);
2978 void	 screen_write_carriagereturn(struct screen_write_ctx *);
2979 void	 screen_write_clearendofscreen(struct screen_write_ctx *, u_int);
2980 void	 screen_write_clearstartofscreen(struct screen_write_ctx *, u_int);
2981 void	 screen_write_clearscreen(struct screen_write_ctx *, u_int);
2982 void	 screen_write_clearhistory(struct screen_write_ctx *);
2983 void	 screen_write_fullredraw(struct screen_write_ctx *);
2984 void	 screen_write_collect_end(struct screen_write_ctx *);
2985 void	 screen_write_collect_add(struct screen_write_ctx *,
2986 	     const struct grid_cell *);
2987 void	 screen_write_cell(struct screen_write_ctx *, const struct grid_cell *);
2988 void	 screen_write_setselection(struct screen_write_ctx *, const char *,
2989 	     u_char *, u_int);
2990 void	 screen_write_rawstring(struct screen_write_ctx *, u_char *, u_int,
2991 	     int);
2992 #ifdef ENABLE_SIXEL
2993 void	 screen_write_sixelimage(struct screen_write_ctx *,
2994 	     struct sixel_image *, u_int);
2995 #endif
2996 void	 screen_write_alternateon(struct screen_write_ctx *,
2997 	     struct grid_cell *, int);
2998 void	 screen_write_alternateoff(struct screen_write_ctx *,
2999 	     struct grid_cell *, int);
3000 
3001 /* screen-redraw.c */
3002 void	 screen_redraw_screen(struct client *);
3003 void	 screen_redraw_pane(struct client *, struct window_pane *);
3004 
3005 /* screen.c */
3006 void	 screen_init(struct screen *, u_int, u_int, u_int);
3007 void	 screen_reinit(struct screen *);
3008 void	 screen_free(struct screen *);
3009 void	 screen_reset_tabs(struct screen *);
3010 void	 screen_reset_hyperlinks(struct screen *);
3011 void	 screen_set_cursor_style(u_int, enum screen_cursor_style *, int *);
3012 void	 screen_set_cursor_colour(struct screen *, int);
3013 int	 screen_set_title(struct screen *, const char *);
3014 void	 screen_set_path(struct screen *, const char *);
3015 void	 screen_push_title(struct screen *);
3016 void	 screen_pop_title(struct screen *);
3017 void	 screen_resize(struct screen *, u_int, u_int, int);
3018 void	 screen_resize_cursor(struct screen *, u_int, u_int, int, int, int);
3019 void	 screen_set_selection(struct screen *, u_int, u_int, u_int, u_int,
3020 	     u_int, int, struct grid_cell *);
3021 void	 screen_clear_selection(struct screen *);
3022 void	 screen_hide_selection(struct screen *);
3023 int	 screen_check_selection(struct screen *, u_int, u_int);
3024 void	 screen_select_cell(struct screen *, struct grid_cell *,
3025 	     const struct grid_cell *);
3026 void	 screen_alternate_on(struct screen *, struct grid_cell *, int);
3027 void	 screen_alternate_off(struct screen *, struct grid_cell *, int);
3028 const char *screen_mode_to_string(int);
3029 
3030 /* window.c */
3031 extern struct windows windows;
3032 extern struct window_pane_tree all_window_panes;
3033 int		 window_cmp(struct window *, struct window *);
3034 RB_PROTOTYPE(windows, window, entry, window_cmp);
3035 int		 winlink_cmp(struct winlink *, struct winlink *);
3036 RB_PROTOTYPE(winlinks, winlink, entry, winlink_cmp);
3037 int		 window_pane_cmp(struct window_pane *, struct window_pane *);
3038 RB_PROTOTYPE(window_pane_tree, window_pane, tree_entry, window_pane_cmp);
3039 struct winlink	*winlink_find_by_index(struct winlinks *, int);
3040 struct winlink	*winlink_find_by_window(struct winlinks *, struct window *);
3041 struct winlink	*winlink_find_by_window_id(struct winlinks *, u_int);
3042 u_int		 winlink_count(struct winlinks *);
3043 struct winlink	*winlink_add(struct winlinks *, int);
3044 void		 winlink_set_window(struct winlink *, struct window *);
3045 void		 winlink_remove(struct winlinks *, struct winlink *);
3046 struct winlink	*winlink_next(struct winlink *);
3047 struct winlink	*winlink_previous(struct winlink *);
3048 struct winlink	*winlink_next_by_number(struct winlink *, struct session *,
3049 		     int);
3050 struct winlink	*winlink_previous_by_number(struct winlink *, struct session *,
3051 		     int);
3052 void		 winlink_stack_push(struct winlink_stack *, struct winlink *);
3053 void		 winlink_stack_remove(struct winlink_stack *, struct winlink *);
3054 struct window	*window_find_by_id_str(const char *);
3055 struct window	*window_find_by_id(u_int);
3056 void		 window_update_activity(struct window *);
3057 struct window	*window_create(u_int, u_int, u_int, u_int);
3058 void		 window_pane_set_event(struct window_pane *);
3059 struct window_pane *window_get_active_at(struct window *, u_int, u_int);
3060 struct window_pane *window_find_string(struct window *, const char *);
3061 int		 window_has_pane(struct window *, struct window_pane *);
3062 int		 window_set_active_pane(struct window *, struct window_pane *,
3063 		     int);
3064 void		 window_update_focus(struct window *);
3065 void		 window_pane_update_focus(struct window_pane *);
3066 void		 window_redraw_active_switch(struct window *,
3067 		     struct window_pane *);
3068 struct window_pane *window_add_pane(struct window *, struct window_pane *,
3069 		     u_int, int);
3070 void		 window_resize(struct window *, u_int, u_int, int, int);
3071 void		 window_pane_send_resize(struct window_pane *, u_int, u_int);
3072 int		 window_zoom(struct window_pane *);
3073 int		 window_unzoom(struct window *);
3074 int		 window_push_zoom(struct window *, int, int);
3075 int		 window_pop_zoom(struct window *);
3076 void		 window_lost_pane(struct window *, struct window_pane *);
3077 void		 window_remove_pane(struct window *, struct window_pane *);
3078 struct window_pane *window_pane_at_index(struct window *, u_int);
3079 struct window_pane *window_pane_next_by_number(struct window *,
3080 			struct window_pane *, u_int);
3081 struct window_pane *window_pane_previous_by_number(struct window *,
3082 			struct window_pane *, u_int);
3083 int		 window_pane_index(struct window_pane *, u_int *);
3084 u_int		 window_count_panes(struct window *);
3085 void		 window_destroy_panes(struct window *);
3086 struct window_pane *window_pane_find_by_id_str(const char *);
3087 struct window_pane *window_pane_find_by_id(u_int);
3088 int		 window_pane_destroy_ready(struct window_pane *);
3089 void		 window_pane_resize(struct window_pane *, u_int, u_int);
3090 int		 window_pane_set_mode(struct window_pane *,
3091 		     struct window_pane *, const struct window_mode *,
3092 		     struct cmd_find_state *, struct args *);
3093 void		 window_pane_reset_mode(struct window_pane *);
3094 void		 window_pane_reset_mode_all(struct window_pane *);
3095 int		 window_pane_key(struct window_pane *, struct client *,
3096 		     struct session *, struct winlink *, key_code,
3097 		     struct mouse_event *);
3098 int		 window_pane_visible(struct window_pane *);
3099 int		 window_pane_exited(struct window_pane *);
3100 u_int		 window_pane_search(struct window_pane *, const char *, int,
3101 		     int);
3102 const char	*window_printable_flags(struct winlink *, int);
3103 struct window_pane *window_pane_find_up(struct window_pane *);
3104 struct window_pane *window_pane_find_down(struct window_pane *);
3105 struct window_pane *window_pane_find_left(struct window_pane *);
3106 struct window_pane *window_pane_find_right(struct window_pane *);
3107 void		 window_pane_stack_push(struct window_panes *,
3108 		     struct window_pane *);
3109 void		 window_pane_stack_remove(struct window_panes *,
3110 		     struct window_pane *);
3111 void		 window_set_name(struct window *, const char *);
3112 void		 window_add_ref(struct window *, const char *);
3113 void		 window_remove_ref(struct window *, const char *);
3114 void		 winlink_clear_flags(struct winlink *);
3115 int		 winlink_shuffle_up(struct session *, struct winlink *, int);
3116 int		 window_pane_start_input(struct window_pane *,
3117 		     struct cmdq_item *, char **);
3118 void		*window_pane_get_new_data(struct window_pane *,
3119 		     struct window_pane_offset *, size_t *);
3120 void		 window_pane_update_used_data(struct window_pane *,
3121 		     struct window_pane_offset *, size_t);
3122 void		 window_set_fill_character(struct window *);
3123 void		 window_pane_default_cursor(struct window_pane *);
3124 
3125 /* layout.c */
3126 u_int		 layout_count_cells(struct layout_cell *);
3127 struct layout_cell *layout_create_cell(struct layout_cell *);
3128 void		 layout_free_cell(struct layout_cell *);
3129 void		 layout_print_cell(struct layout_cell *, const char *, u_int);
3130 void		 layout_destroy_cell(struct window *, struct layout_cell *,
3131 		     struct layout_cell **);
3132 void		 layout_resize_layout(struct window *, struct layout_cell *,
3133 		     enum layout_type, int, int);
3134 struct layout_cell *layout_search_by_border(struct layout_cell *, u_int, u_int);
3135 void		 layout_set_size(struct layout_cell *, u_int, u_int, u_int,
3136 		     u_int);
3137 void		 layout_make_leaf(struct layout_cell *, struct window_pane *);
3138 void		 layout_make_node(struct layout_cell *, enum layout_type);
3139 void		 layout_fix_offsets(struct window *);
3140 void		 layout_fix_panes(struct window *, struct window_pane *);
3141 void		 layout_resize_adjust(struct window *, struct layout_cell *,
3142 		     enum layout_type, int);
3143 void		 layout_init(struct window *, struct window_pane *);
3144 void		 layout_free(struct window *);
3145 void		 layout_resize(struct window *, u_int, u_int);
3146 void		 layout_resize_pane(struct window_pane *, enum layout_type,
3147 		     int, int);
3148 void		 layout_resize_pane_to(struct window_pane *, enum layout_type,
3149 		     u_int);
3150 void		 layout_assign_pane(struct layout_cell *, struct window_pane *,
3151 		     int);
3152 struct layout_cell *layout_split_pane(struct window_pane *, enum layout_type,
3153 		     int, int);
3154 void		 layout_close_pane(struct window_pane *);
3155 int		 layout_spread_cell(struct window *, struct layout_cell *);
3156 void		 layout_spread_out(struct window_pane *);
3157 
3158 /* layout-custom.c */
3159 char		*layout_dump(struct layout_cell *);
3160 int		 layout_parse(struct window *, const char *, char **);
3161 
3162 /* layout-set.c */
3163 int		 layout_set_lookup(const char *);
3164 u_int		 layout_set_select(struct window *, u_int);
3165 u_int		 layout_set_next(struct window *);
3166 u_int		 layout_set_previous(struct window *);
3167 
3168 /* mode-tree.c */
3169 typedef void (*mode_tree_build_cb)(void *, struct mode_tree_sort_criteria *,
3170 				   uint64_t *, const char *);
3171 typedef void (*mode_tree_draw_cb)(void *, void *, struct screen_write_ctx *,
3172 	     u_int, u_int);
3173 typedef int (*mode_tree_search_cb)(void *, void *, const char *);
3174 typedef void (*mode_tree_menu_cb)(void *, struct client *, key_code);
3175 typedef u_int (*mode_tree_height_cb)(void *, u_int);
3176 typedef key_code (*mode_tree_key_cb)(void *, void *, u_int);
3177 typedef void (*mode_tree_each_cb)(void *, void *, struct client *, key_code);
3178 u_int	 mode_tree_count_tagged(struct mode_tree_data *);
3179 void	*mode_tree_get_current(struct mode_tree_data *);
3180 const char *mode_tree_get_current_name(struct mode_tree_data *);
3181 void	 mode_tree_expand_current(struct mode_tree_data *);
3182 void	 mode_tree_collapse_current(struct mode_tree_data *);
3183 void	 mode_tree_expand(struct mode_tree_data *, uint64_t);
3184 int	 mode_tree_set_current(struct mode_tree_data *, uint64_t);
3185 void	 mode_tree_each_tagged(struct mode_tree_data *, mode_tree_each_cb,
3186 	     struct client *, key_code, int);
3187 void	 mode_tree_up(struct mode_tree_data *, int);
3188 void	 mode_tree_down(struct mode_tree_data *, int);
3189 struct mode_tree_data *mode_tree_start(struct window_pane *, struct args *,
3190 	     mode_tree_build_cb, mode_tree_draw_cb, mode_tree_search_cb,
3191 	     mode_tree_menu_cb, mode_tree_height_cb, mode_tree_key_cb, void *,
3192 	     const struct menu_item *, const char **, u_int, struct screen **);
3193 void	 mode_tree_zoom(struct mode_tree_data *, struct args *);
3194 void	 mode_tree_build(struct mode_tree_data *);
3195 void	 mode_tree_free(struct mode_tree_data *);
3196 void	 mode_tree_resize(struct mode_tree_data *, u_int, u_int);
3197 struct mode_tree_item *mode_tree_add(struct mode_tree_data *,
3198 	     struct mode_tree_item *, void *, uint64_t, const char *,
3199 	     const char *, int);
3200 void	 mode_tree_draw_as_parent(struct mode_tree_item *);
3201 void	 mode_tree_no_tag(struct mode_tree_item *);
3202 void	 mode_tree_remove(struct mode_tree_data *, struct mode_tree_item *);
3203 void	 mode_tree_draw(struct mode_tree_data *);
3204 int	 mode_tree_key(struct mode_tree_data *, struct client *, key_code *,
3205 	     struct mouse_event *, u_int *, u_int *);
3206 void	 mode_tree_run_command(struct client *, struct cmd_find_state *,
3207 	     const char *, const char *);
3208 
3209 /* window-buffer.c */
3210 extern const struct window_mode window_buffer_mode;
3211 
3212 /* window-tree.c */
3213 extern const struct window_mode window_tree_mode;
3214 
3215 /* window-clock.c */
3216 extern const struct window_mode window_clock_mode;
3217 extern const char window_clock_table[14][5][5];
3218 
3219 /* window-client.c */
3220 extern const struct window_mode window_client_mode;
3221 
3222 /* window-copy.c */
3223 extern const struct window_mode window_copy_mode;
3224 extern const struct window_mode window_view_mode;
3225 void printflike(3, 4) window_copy_add(struct window_pane *, int, const char *,
3226 		     ...);
3227 void printflike(3, 0) window_copy_vadd(struct window_pane *, int, const char *,
3228 		     va_list);
3229 void		 window_copy_pageup(struct window_pane *, int);
3230 void		 window_copy_start_drag(struct client *, struct mouse_event *);
3231 char		*window_copy_get_word(struct window_pane *, u_int, u_int);
3232 char		*window_copy_get_line(struct window_pane *, u_int);
3233 
3234 /* window-option.c */
3235 extern const struct window_mode window_customize_mode;
3236 
3237 /* names.c */
3238 void	 check_window_name(struct window *);
3239 char	*default_window_name(struct window *);
3240 char	*parse_window_name(const char *);
3241 
3242 /* control.c */
3243 void	control_discard(struct client *);
3244 void	control_start(struct client *);
3245 void	control_ready(struct client *);
3246 void	control_stop(struct client *);
3247 void	control_set_pane_on(struct client *, struct window_pane *);
3248 void	control_set_pane_off(struct client *, struct window_pane *);
3249 void	control_continue_pane(struct client *, struct window_pane *);
3250 void	control_pause_pane(struct client *, struct window_pane *);
3251 struct window_pane_offset *control_pane_offset(struct client *,
3252 	   struct window_pane *, int *);
3253 void	control_reset_offsets(struct client *);
3254 void printflike(2, 3) control_write(struct client *, const char *, ...);
3255 void	control_write_output(struct client *, struct window_pane *);
3256 int	control_all_done(struct client *);
3257 void	control_add_sub(struct client *, const char *, enum control_sub_type,
3258     	   int, const char *);
3259 void	control_remove_sub(struct client *, const char *);
3260 
3261 /* control-notify.c */
3262 void	control_notify_input(struct client *, struct window_pane *,
3263 	    const u_char *, size_t);
3264 void	control_notify_pane_mode_changed(int);
3265 void	control_notify_window_layout_changed(struct window *);
3266 void	control_notify_window_pane_changed(struct window *);
3267 void	control_notify_window_unlinked(struct session *, struct window *);
3268 void	control_notify_window_linked(struct session *, struct window *);
3269 void	control_notify_window_renamed(struct window *);
3270 void	control_notify_client_session_changed(struct client *);
3271 void	control_notify_client_detached(struct client *);
3272 void	control_notify_session_renamed(struct session *);
3273 void	control_notify_session_created(struct session *);
3274 void	control_notify_session_closed(struct session *);
3275 void	control_notify_session_window_changed(struct session *);
3276 void	control_notify_paste_buffer_changed(const char *);
3277 void	control_notify_paste_buffer_deleted(const char *);
3278 
3279 /* session.c */
3280 extern struct sessions sessions;
3281 extern u_int next_session_id;
3282 int	session_cmp(struct session *, struct session *);
3283 RB_PROTOTYPE(sessions, session, entry, session_cmp);
3284 int		 session_alive(struct session *);
3285 struct session	*session_find(const char *);
3286 struct session	*session_find_by_id_str(const char *);
3287 struct session	*session_find_by_id(u_int);
3288 struct session	*session_create(const char *, const char *, const char *,
3289 		     struct environ *, struct options *, struct termios *);
3290 void		 session_destroy(struct session *, int,	 const char *);
3291 void		 session_add_ref(struct session *, const char *);
3292 void		 session_remove_ref(struct session *, const char *);
3293 char		*session_check_name(const char *);
3294 void		 session_update_activity(struct session *, struct timeval *);
3295 struct session	*session_next_session(struct session *);
3296 struct session	*session_previous_session(struct session *);
3297 struct winlink	*session_new(struct session *, const char *, int, char **,
3298 		     const char *, const char *, int, char **);
3299 struct winlink	*session_attach(struct session *, struct window *, int,
3300 		     char **);
3301 int		 session_detach(struct session *, struct winlink *);
3302 int		 session_has(struct session *, struct window *);
3303 int		 session_is_linked(struct session *, struct window *);
3304 int		 session_next(struct session *, int);
3305 int		 session_previous(struct session *, int);
3306 int		 session_select(struct session *, int);
3307 int		 session_last(struct session *);
3308 int		 session_set_current(struct session *, struct winlink *);
3309 struct session_group *session_group_contains(struct session *);
3310 struct session_group *session_group_find(const char *);
3311 struct session_group *session_group_new(const char *);
3312 void		 session_group_add(struct session_group *, struct session *);
3313 void		 session_group_synchronize_to(struct session *);
3314 void		 session_group_synchronize_from(struct session *);
3315 u_int		 session_group_count(struct session_group *);
3316 u_int		 session_group_attached_count(struct session_group *);
3317 void		 session_renumber_windows(struct session *);
3318 
3319 /* utf8.c */
3320 enum utf8_state	 utf8_towc (const struct utf8_data *, wchar_t *);
3321 int		 utf8_in_table(wchar_t, const wchar_t *, u_int);
3322 utf8_char	 utf8_build_one(u_char);
3323 enum utf8_state	 utf8_from_data(const struct utf8_data *, utf8_char *);
3324 void		 utf8_to_data(utf8_char, struct utf8_data *);
3325 void		 utf8_set(struct utf8_data *, u_char);
3326 void		 utf8_copy(struct utf8_data *, const struct utf8_data *);
3327 enum utf8_state	 utf8_open(struct utf8_data *, u_char);
3328 enum utf8_state	 utf8_append(struct utf8_data *, u_char);
3329 int		 utf8_isvalid(const char *);
3330 int		 utf8_strvis(char *, const char *, size_t, int);
3331 int		 utf8_stravis(char **, const char *, int);
3332 int		 utf8_stravisx(char **, const char *, size_t, int);
3333 char		*utf8_sanitize(const char *);
3334 size_t		 utf8_strlen(const struct utf8_data *);
3335 u_int		 utf8_strwidth(const struct utf8_data *, ssize_t);
3336 struct utf8_data *utf8_fromcstr(const char *);
3337 char		*utf8_tocstr(struct utf8_data *);
3338 u_int		 utf8_cstrwidth(const char *);
3339 char		*utf8_padcstr(const char *, u_int);
3340 char		*utf8_rpadcstr(const char *, u_int);
3341 int		 utf8_cstrhas(const char *, const struct utf8_data *);
3342 
3343 /* osdep-*.c */
3344 char		*osdep_get_name(int, char *);
3345 char		*osdep_get_cwd(int);
3346 struct event_base *osdep_event_init(void);
3347 
3348 /* utf8-combined.c */
3349 int		 utf8_has_zwj(const struct utf8_data *);
3350 int		 utf8_is_zwj(const struct utf8_data *);
3351 int		 utf8_is_vs(const struct utf8_data *);
3352 int		 utf8_is_modifier(const struct utf8_data *);
3353 
3354 /* procname.c */
3355 char   *get_proc_name(int, char *);
3356 char   *get_proc_cwd(int);
3357 
3358 /* log.c */
3359 void	log_add_level(void);
3360 int	log_get_level(void);
3361 void	log_open(const char *);
3362 void	log_toggle(const char *);
3363 void	log_close(void);
3364 void printflike(1, 2) log_debug(const char *, ...);
3365 __dead void printflike(1, 2) fatal(const char *, ...);
3366 __dead void printflike(1, 2) fatalx(const char *, ...);
3367 
3368 /* menu.c */
3369 #define MENU_NOMOUSE 0x1
3370 #define MENU_TAB 0x2
3371 #define MENU_STAYOPEN 0x4
3372 struct menu	*menu_create(const char *);
3373 void		 menu_add_items(struct menu *, const struct menu_item *,
3374 		    struct cmdq_item *, struct client *,
3375 		    struct cmd_find_state *);
3376 void		 menu_add_item(struct menu *, const struct menu_item *,
3377 		    struct cmdq_item *, struct client *,
3378 		    struct cmd_find_state *);
3379 void		 menu_free(struct menu *);
3380 struct menu_data *menu_prepare(struct menu *, int, int, struct cmdq_item *,
3381 		    u_int, u_int, struct client *, enum box_lines, const char *,
3382 		    const char *, const char *, struct cmd_find_state *,
3383 		    menu_choice_cb, void *);
3384 int		 menu_display(struct menu *, int, int, struct cmdq_item *,
3385 		    u_int, u_int, struct client *, enum box_lines, const char *,
3386 		    const char *, const char *, struct cmd_find_state *,
3387 		    menu_choice_cb, void *);
3388 struct screen	*menu_mode_cb(struct client *, void *, u_int *, u_int *);
3389 void		 menu_check_cb(struct client *, void *, u_int, u_int, u_int,
3390 		    struct overlay_ranges *);
3391 void		 menu_draw_cb(struct client *, void *,
3392 		    struct screen_redraw_ctx *);
3393 void		 menu_free_cb(struct client *, void *);
3394 int		 menu_key_cb(struct client *, void *, struct key_event *);
3395 
3396 /* popup.c */
3397 #define POPUP_CLOSEEXIT 0x1
3398 #define POPUP_CLOSEEXITZERO 0x2
3399 #define POPUP_INTERNAL 0x4
3400 typedef void (*popup_close_cb)(int, void *);
3401 typedef void (*popup_finish_edit_cb)(char *, size_t, void *);
3402 int		 popup_display(int, enum box_lines, struct cmdq_item *, u_int,
3403                     u_int, u_int, u_int, struct environ *, const char *, int,
3404                     char **, const char *, const char *, struct client *,
3405                     struct session *, const char *, const char *,
3406                     popup_close_cb, void *);
3407 int		 popup_editor(struct client *, const char *, size_t,
3408 		    popup_finish_edit_cb, void *);
3409 
3410 /* style.c */
3411 int		 style_parse(struct style *,const struct grid_cell *,
3412 		     const char *);
3413 const char	*style_tostring(struct style *);
3414 void		 style_add(struct grid_cell *, struct options *,
3415 		     const char *, struct format_tree *);
3416 void		 style_apply(struct grid_cell *, struct options *,
3417 		     const char *, struct format_tree *);
3418 void		 style_set(struct style *, const struct grid_cell *);
3419 void		 style_copy(struct style *, struct style *);
3420 
3421 /* spawn.c */
3422 struct winlink	*spawn_window(struct spawn_context *, char **);
3423 struct window_pane *spawn_pane(struct spawn_context *, char **);
3424 
3425 /* regsub.c */
3426 char		*regsub(const char *, const char *, const char *, int);
3427 
3428 #ifdef ENABLE_SIXEL
3429 /* image.c */
3430 int		 image_free_all(struct screen *);
3431 struct image	*image_store(struct screen *, struct sixel_image *);
3432 int		 image_check_line(struct screen *, u_int, u_int);
3433 int		 image_check_area(struct screen *, u_int, u_int, u_int, u_int);
3434 int		 image_scroll_up(struct screen *, u_int);
3435 
3436 /* image-sixel.c */
3437 #define SIXEL_COLOUR_REGISTERS 1024
3438 struct sixel_image *sixel_parse(const char *, size_t, u_int, u_int);
3439 void		 sixel_free(struct sixel_image *);
3440 void		 sixel_log(struct sixel_image *);
3441 void		 sixel_size_in_cells(struct sixel_image *, u_int *, u_int *);
3442 struct sixel_image *sixel_scale(struct sixel_image *, u_int, u_int, u_int,
3443 		     u_int, u_int, u_int, int);
3444 char		*sixel_print(struct sixel_image *, struct sixel_image *,
3445 		     size_t *);
3446 struct screen	*sixel_to_screen(struct sixel_image *);
3447 #endif
3448 
3449 /* server-acl.c */
3450 void			 server_acl_init(void);
3451 struct server_acl_user	*server_acl_user_find(uid_t);
3452 void 			 server_acl_display(struct cmdq_item *);
3453 void			 server_acl_user_allow(uid_t);
3454 void			 server_acl_user_deny(uid_t);
3455 void			 server_acl_user_allow_write(uid_t);
3456 void			 server_acl_user_deny_write(uid_t);
3457 int			 server_acl_join(struct client *);
3458 uid_t			 server_acl_get_uid(struct server_acl_user *);
3459 
3460 /* hyperlink.c */
3461 u_int	 		 hyperlinks_put(struct hyperlinks *, const char *,
3462 			     const char *);
3463 int			 hyperlinks_get(struct hyperlinks *, u_int,
3464 			     const char **, const char **, const char **);
3465 struct hyperlinks	*hyperlinks_init(void);
3466 void			 hyperlinks_reset(struct hyperlinks *);
3467 void			 hyperlinks_free(struct hyperlinks *);
3468 
3469 #endif /* TMUX_H */
3470