xref: /openbsd-src/usr.bin/tmux/tmux.h (revision 5a38ef86d0b61900239c7913d24a05e7b88a58f0)
1 /* $OpenBSD: tmux.h,v 1.1156 2021/12/10 12:42:37 nicm Exp $ */
2 
3 /*
4  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
5  *
6  * Permission to use, copy, modify, and distribute this software for any
7  * purpose with or without fee is hereby granted, provided that the above
8  * copyright notice and this permission notice appear in all copies.
9  *
10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17  */
18 
19 #ifndef TMUX_H
20 #define TMUX_H
21 
22 #include <sys/time.h>
23 #include <sys/queue.h>
24 #include <sys/tree.h>
25 
26 #include <bitstring.h>
27 #include <event.h>
28 #include <limits.h>
29 #include <stdarg.h>
30 #include <stdint.h>
31 #include <stdio.h>
32 #include <termios.h>
33 
34 #include "tmux-protocol.h"
35 #include "xmalloc.h"
36 
37 extern char   **environ;
38 
39 struct args;
40 struct args_command_state;
41 struct client;
42 struct cmd;
43 struct cmd_find_state;
44 struct cmdq_item;
45 struct cmdq_list;
46 struct cmdq_state;
47 struct cmds;
48 struct control_state;
49 struct environ;
50 struct format_job_tree;
51 struct format_tree;
52 struct input_ctx;
53 struct job;
54 struct menu_data;
55 struct mode_tree_data;
56 struct mouse_event;
57 struct options;
58 struct options_array_item;
59 struct options_entry;
60 struct screen_write_citem;
61 struct screen_write_cline;
62 struct screen_write_ctx;
63 struct session;
64 struct tty_ctx;
65 struct tty_code;
66 struct tty_key;
67 struct tmuxpeer;
68 struct tmuxproc;
69 struct winlink;
70 
71 /* Default configuration files and socket paths. */
72 #ifndef TMUX_CONF
73 #define TMUX_CONF "/etc/tmux.conf:~/.tmux.conf"
74 #endif
75 #ifndef TMUX_SOCK
76 #define TMUX_SOCK "$TMUX_TMPDIR:" _PATH_TMP
77 #endif
78 #ifndef TMUX_TERM
79 #define TMUX_TERM "screen"
80 #endif
81 
82 /* Minimum layout cell size, NOT including border lines. */
83 #define PANE_MINIMUM 1
84 
85 /* Minimum and maximum window size. */
86 #define WINDOW_MINIMUM PANE_MINIMUM
87 #define WINDOW_MAXIMUM 10000
88 
89 /* Automatic name refresh interval, in microseconds. Must be < 1 second. */
90 #define NAME_INTERVAL 500000
91 
92 /* Default pixel cell sizes. */
93 #define DEFAULT_XPIXEL 16
94 #define DEFAULT_YPIXEL 32
95 
96 /* Attribute to make GCC check printf-like arguments. */
97 #define printflike(a, b) __attribute__ ((format (printf, a, b)))
98 
99 /* Number of items in array. */
100 #ifndef nitems
101 #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
102 #endif
103 
104 /* Alert option values. */
105 #define ALERT_NONE 0
106 #define ALERT_ANY 1
107 #define ALERT_CURRENT 2
108 #define ALERT_OTHER 3
109 
110 /* Visual option values. */
111 #define VISUAL_OFF 0
112 #define VISUAL_ON 1
113 #define VISUAL_BOTH 2
114 
115 /* No key or unknown key. */
116 #define KEYC_NONE            0x000ff000000000ULL
117 #define KEYC_UNKNOWN         0x000fe000000000ULL
118 
119 /*
120  * Base for special (that is, not Unicode) keys. An enum must be at most a
121  * signed int, so these are based in the highest Unicode PUA.
122  */
123 #define KEYC_BASE            0x0000000010e000ULL
124 #define KEYC_USER            0x0000000010f000ULL
125 
126 /* Key modifier bits. */
127 #define KEYC_META            0x00100000000000ULL
128 #define KEYC_CTRL            0x00200000000000ULL
129 #define KEYC_SHIFT           0x00400000000000ULL
130 
131 /* Key flag bits. */
132 #define KEYC_LITERAL         0x01000000000000ULL
133 #define KEYC_KEYPAD          0x02000000000000ULL
134 #define KEYC_CURSOR          0x04000000000000ULL
135 #define KEYC_IMPLIED_META    0x08000000000000ULL
136 #define KEYC_BUILD_MODIFIERS 0x10000000000000ULL
137 #define KEYC_VI              0x20000000000000ULL
138 
139 /* Masks for key bits. */
140 #define KEYC_MASK_MODIFIERS  0x00f00000000000ULL
141 #define KEYC_MASK_FLAGS      0xff000000000000ULL
142 #define KEYC_MASK_KEY        0x000fffffffffffULL
143 
144 /* Available user keys. */
145 #define KEYC_NUSER 1000
146 
147 /* Is this a mouse key? */
148 #define KEYC_IS_MOUSE(key) \
149 	(((key) & KEYC_MASK_KEY) >= KEYC_MOUSE && \
150 	 ((key) & KEYC_MASK_KEY) < KEYC_BSPACE)
151 
152 /* Is this a Unicode key? */
153 #define KEYC_IS_UNICODE(key) \
154 	(((key) & KEYC_MASK_KEY) > 0x7f && \
155 	 (((key) & KEYC_MASK_KEY) < KEYC_BASE || \
156 	  ((key) & KEYC_MASK_KEY) >= KEYC_BASE_END))
157 
158 /* Multiple click timeout. */
159 #define KEYC_CLICK_TIMEOUT 300
160 
161 /* Mouse key codes. */
162 #define KEYC_MOUSE_KEY(name)					\
163 	KEYC_ ## name ## _PANE,					\
164 	KEYC_ ## name ## _STATUS,				\
165 	KEYC_ ## name ## _STATUS_LEFT,				\
166 	KEYC_ ## name ## _STATUS_RIGHT,				\
167 	KEYC_ ## name ## _STATUS_DEFAULT,			\
168 	KEYC_ ## name ## _BORDER
169 #define KEYC_MOUSE_STRING(name, s)				\
170 	{ #s "Pane", KEYC_ ## name ## _PANE },			\
171 	{ #s "Status", KEYC_ ## name ## _STATUS },		\
172 	{ #s "StatusLeft", KEYC_ ## name ## _STATUS_LEFT },	\
173 	{ #s "StatusRight", KEYC_ ## name ## _STATUS_RIGHT },	\
174 	{ #s "StatusDefault", KEYC_ ## name ## _STATUS_DEFAULT }, \
175 	{ #s "Border", KEYC_ ## name ## _BORDER }
176 
177 /*
178  * A single key. This can be ASCII or Unicode or one of the keys between
179  * KEYC_BASE and KEYC_BASE_END.
180  */
181 typedef unsigned long long key_code;
182 
183 /* Special key codes. */
184 enum {
185 	/* Focus events. */
186 	KEYC_FOCUS_IN = KEYC_BASE,
187 	KEYC_FOCUS_OUT,
188 
189 	/* "Any" key, used if not found in key table. */
190 	KEYC_ANY,
191 
192 	/* Paste brackets. */
193 	KEYC_PASTE_START,
194 	KEYC_PASTE_END,
195 
196 	/* Mouse keys. */
197 	KEYC_MOUSE, /* unclassified mouse event */
198 	KEYC_DRAGGING, /* dragging in progress */
199 	KEYC_DOUBLECLICK, /* double click complete */
200 	KEYC_MOUSE_KEY(MOUSEMOVE),
201 	KEYC_MOUSE_KEY(MOUSEDOWN1),
202 	KEYC_MOUSE_KEY(MOUSEDOWN2),
203 	KEYC_MOUSE_KEY(MOUSEDOWN3),
204 	KEYC_MOUSE_KEY(MOUSEUP1),
205 	KEYC_MOUSE_KEY(MOUSEUP2),
206 	KEYC_MOUSE_KEY(MOUSEUP3),
207 	KEYC_MOUSE_KEY(MOUSEDRAG1),
208 	KEYC_MOUSE_KEY(MOUSEDRAG2),
209 	KEYC_MOUSE_KEY(MOUSEDRAG3),
210 	KEYC_MOUSE_KEY(MOUSEDRAGEND1),
211 	KEYC_MOUSE_KEY(MOUSEDRAGEND2),
212 	KEYC_MOUSE_KEY(MOUSEDRAGEND3),
213 	KEYC_MOUSE_KEY(WHEELUP),
214 	KEYC_MOUSE_KEY(WHEELDOWN),
215 	KEYC_MOUSE_KEY(SECONDCLICK1),
216 	KEYC_MOUSE_KEY(SECONDCLICK2),
217 	KEYC_MOUSE_KEY(SECONDCLICK3),
218 	KEYC_MOUSE_KEY(DOUBLECLICK1),
219 	KEYC_MOUSE_KEY(DOUBLECLICK2),
220 	KEYC_MOUSE_KEY(DOUBLECLICK3),
221 	KEYC_MOUSE_KEY(TRIPLECLICK1),
222 	KEYC_MOUSE_KEY(TRIPLECLICK2),
223 	KEYC_MOUSE_KEY(TRIPLECLICK3),
224 
225 	/* Backspace key. */
226 	KEYC_BSPACE,
227 
228 	/* Function keys. */
229 	KEYC_F1,
230 	KEYC_F2,
231 	KEYC_F3,
232 	KEYC_F4,
233 	KEYC_F5,
234 	KEYC_F6,
235 	KEYC_F7,
236 	KEYC_F8,
237 	KEYC_F9,
238 	KEYC_F10,
239 	KEYC_F11,
240 	KEYC_F12,
241 	KEYC_IC,
242 	KEYC_DC,
243 	KEYC_HOME,
244 	KEYC_END,
245 	KEYC_NPAGE,
246 	KEYC_PPAGE,
247 	KEYC_BTAB,
248 
249 	/* Arrow keys. */
250 	KEYC_UP,
251 	KEYC_DOWN,
252 	KEYC_LEFT,
253 	KEYC_RIGHT,
254 
255 	/* Numeric keypad. */
256 	KEYC_KP_SLASH,
257 	KEYC_KP_STAR,
258 	KEYC_KP_MINUS,
259 	KEYC_KP_SEVEN,
260 	KEYC_KP_EIGHT,
261 	KEYC_KP_NINE,
262 	KEYC_KP_PLUS,
263 	KEYC_KP_FOUR,
264 	KEYC_KP_FIVE,
265 	KEYC_KP_SIX,
266 	KEYC_KP_ONE,
267 	KEYC_KP_TWO,
268 	KEYC_KP_THREE,
269 	KEYC_KP_ENTER,
270 	KEYC_KP_ZERO,
271 	KEYC_KP_PERIOD,
272 
273 	/* End of special keys. */
274 	KEYC_BASE_END
275 };
276 
277 /* Termcap codes. */
278 enum tty_code_code {
279 	TTYC_ACSC,
280 	TTYC_AM,
281 	TTYC_AX,
282 	TTYC_BCE,
283 	TTYC_BEL,
284 	TTYC_BIDI,
285 	TTYC_BLINK,
286 	TTYC_BOLD,
287 	TTYC_CIVIS,
288 	TTYC_CLEAR,
289 	TTYC_CLMG,
290 	TTYC_CMG,
291 	TTYC_CNORM,
292 	TTYC_COLORS,
293 	TTYC_CR,
294 	TTYC_CS,
295 	TTYC_CSR,
296 	TTYC_CUB,
297 	TTYC_CUB1,
298 	TTYC_CUD,
299 	TTYC_CUD1,
300 	TTYC_CUF,
301 	TTYC_CUF1,
302 	TTYC_CUP,
303 	TTYC_CUU,
304 	TTYC_CUU1,
305 	TTYC_CVVIS,
306 	TTYC_DCH,
307 	TTYC_DCH1,
308 	TTYC_DIM,
309 	TTYC_DL,
310 	TTYC_DL1,
311 	TTYC_DSBP,
312 	TTYC_DSEKS,
313 	TTYC_DSFCS,
314 	TTYC_DSMG,
315 	TTYC_E3,
316 	TTYC_ECH,
317 	TTYC_ED,
318 	TTYC_EL,
319 	TTYC_EL1,
320 	TTYC_ENACS,
321 	TTYC_ENBP,
322 	TTYC_ENEKS,
323 	TTYC_ENFCS,
324 	TTYC_ENMG,
325 	TTYC_FSL,
326 	TTYC_HOME,
327 	TTYC_HPA,
328 	TTYC_ICH,
329 	TTYC_ICH1,
330 	TTYC_IL,
331 	TTYC_IL1,
332 	TTYC_INDN,
333 	TTYC_INVIS,
334 	TTYC_KCBT,
335 	TTYC_KCUB1,
336 	TTYC_KCUD1,
337 	TTYC_KCUF1,
338 	TTYC_KCUU1,
339 	TTYC_KDC2,
340 	TTYC_KDC3,
341 	TTYC_KDC4,
342 	TTYC_KDC5,
343 	TTYC_KDC6,
344 	TTYC_KDC7,
345 	TTYC_KDCH1,
346 	TTYC_KDN2,
347 	TTYC_KDN3,
348 	TTYC_KDN4,
349 	TTYC_KDN5,
350 	TTYC_KDN6,
351 	TTYC_KDN7,
352 	TTYC_KEND,
353 	TTYC_KEND2,
354 	TTYC_KEND3,
355 	TTYC_KEND4,
356 	TTYC_KEND5,
357 	TTYC_KEND6,
358 	TTYC_KEND7,
359 	TTYC_KF1,
360 	TTYC_KF10,
361 	TTYC_KF11,
362 	TTYC_KF12,
363 	TTYC_KF13,
364 	TTYC_KF14,
365 	TTYC_KF15,
366 	TTYC_KF16,
367 	TTYC_KF17,
368 	TTYC_KF18,
369 	TTYC_KF19,
370 	TTYC_KF2,
371 	TTYC_KF20,
372 	TTYC_KF21,
373 	TTYC_KF22,
374 	TTYC_KF23,
375 	TTYC_KF24,
376 	TTYC_KF25,
377 	TTYC_KF26,
378 	TTYC_KF27,
379 	TTYC_KF28,
380 	TTYC_KF29,
381 	TTYC_KF3,
382 	TTYC_KF30,
383 	TTYC_KF31,
384 	TTYC_KF32,
385 	TTYC_KF33,
386 	TTYC_KF34,
387 	TTYC_KF35,
388 	TTYC_KF36,
389 	TTYC_KF37,
390 	TTYC_KF38,
391 	TTYC_KF39,
392 	TTYC_KF4,
393 	TTYC_KF40,
394 	TTYC_KF41,
395 	TTYC_KF42,
396 	TTYC_KF43,
397 	TTYC_KF44,
398 	TTYC_KF45,
399 	TTYC_KF46,
400 	TTYC_KF47,
401 	TTYC_KF48,
402 	TTYC_KF49,
403 	TTYC_KF5,
404 	TTYC_KF50,
405 	TTYC_KF51,
406 	TTYC_KF52,
407 	TTYC_KF53,
408 	TTYC_KF54,
409 	TTYC_KF55,
410 	TTYC_KF56,
411 	TTYC_KF57,
412 	TTYC_KF58,
413 	TTYC_KF59,
414 	TTYC_KF6,
415 	TTYC_KF60,
416 	TTYC_KF61,
417 	TTYC_KF62,
418 	TTYC_KF63,
419 	TTYC_KF7,
420 	TTYC_KF8,
421 	TTYC_KF9,
422 	TTYC_KHOM2,
423 	TTYC_KHOM3,
424 	TTYC_KHOM4,
425 	TTYC_KHOM5,
426 	TTYC_KHOM6,
427 	TTYC_KHOM7,
428 	TTYC_KHOME,
429 	TTYC_KIC2,
430 	TTYC_KIC3,
431 	TTYC_KIC4,
432 	TTYC_KIC5,
433 	TTYC_KIC6,
434 	TTYC_KIC7,
435 	TTYC_KICH1,
436 	TTYC_KIND,
437 	TTYC_KLFT2,
438 	TTYC_KLFT3,
439 	TTYC_KLFT4,
440 	TTYC_KLFT5,
441 	TTYC_KLFT6,
442 	TTYC_KLFT7,
443 	TTYC_KMOUS,
444 	TTYC_KNP,
445 	TTYC_KNXT2,
446 	TTYC_KNXT3,
447 	TTYC_KNXT4,
448 	TTYC_KNXT5,
449 	TTYC_KNXT6,
450 	TTYC_KNXT7,
451 	TTYC_KPP,
452 	TTYC_KPRV2,
453 	TTYC_KPRV3,
454 	TTYC_KPRV4,
455 	TTYC_KPRV5,
456 	TTYC_KPRV6,
457 	TTYC_KPRV7,
458 	TTYC_KRI,
459 	TTYC_KRIT2,
460 	TTYC_KRIT3,
461 	TTYC_KRIT4,
462 	TTYC_KRIT5,
463 	TTYC_KRIT6,
464 	TTYC_KRIT7,
465 	TTYC_KUP2,
466 	TTYC_KUP3,
467 	TTYC_KUP4,
468 	TTYC_KUP5,
469 	TTYC_KUP6,
470 	TTYC_KUP7,
471 	TTYC_MS,
472 	TTYC_OL,
473 	TTYC_OP,
474 	TTYC_RECT,
475 	TTYC_REV,
476 	TTYC_RGB,
477 	TTYC_RI,
478 	TTYC_RIN,
479 	TTYC_RMACS,
480 	TTYC_RMCUP,
481 	TTYC_RMKX,
482 	TTYC_SE,
483 	TTYC_SETAB,
484 	TTYC_SETAF,
485 	TTYC_SETAL,
486 	TTYC_SETRGBB,
487 	TTYC_SETRGBF,
488 	TTYC_SETULC,
489 	TTYC_SGR0,
490 	TTYC_SITM,
491 	TTYC_SMACS,
492 	TTYC_SMCUP,
493 	TTYC_SMKX,
494 	TTYC_SMOL,
495 	TTYC_SMSO,
496 	TTYC_SMUL,
497 	TTYC_SMULX,
498 	TTYC_SMXX,
499 	TTYC_SS,
500 	TTYC_SYNC,
501 	TTYC_TC,
502 	TTYC_TSL,
503 	TTYC_U8,
504 	TTYC_VPA,
505 	TTYC_XT
506 };
507 
508 /* Character classes. */
509 #define WHITESPACE " "
510 
511 /* Mode keys. */
512 #define MODEKEY_EMACS 0
513 #define MODEKEY_VI 1
514 
515 /* Modes. */
516 #define MODE_CURSOR 0x1
517 #define MODE_INSERT 0x2
518 #define MODE_KCURSOR 0x4
519 #define MODE_KKEYPAD 0x8
520 #define MODE_WRAP 0x10
521 #define MODE_MOUSE_STANDARD 0x20
522 #define MODE_MOUSE_BUTTON 0x40
523 #define MODE_CURSOR_BLINKING 0x80
524 #define MODE_MOUSE_UTF8 0x100
525 #define MODE_MOUSE_SGR 0x200
526 #define MODE_BRACKETPASTE 0x400
527 #define MODE_FOCUSON 0x800
528 #define MODE_MOUSE_ALL 0x1000
529 #define MODE_ORIGIN 0x2000
530 #define MODE_CRLF 0x4000
531 #define MODE_KEXTENDED 0x8000
532 #define MODE_CURSOR_VERY_VISIBLE 0x10000
533 #define MODE_CURSOR_BLINKING_SET 0x20000
534 
535 #define ALL_MODES 0xffffff
536 #define ALL_MOUSE_MODES (MODE_MOUSE_STANDARD|MODE_MOUSE_BUTTON|MODE_MOUSE_ALL)
537 #define MOTION_MOUSE_MODES (MODE_MOUSE_BUTTON|MODE_MOUSE_ALL)
538 #define CURSOR_MODES (MODE_CURSOR|MODE_CURSOR_BLINKING|MODE_CURSOR_VERY_VISIBLE)
539 
540 /* A single UTF-8 character. */
541 typedef u_int utf8_char;
542 
543 /*
544  * An expanded UTF-8 character. UTF8_SIZE must be big enough to hold combining
545  * characters as well. It can't be more than 32 bytes without changes to how
546  * characters are stored.
547  */
548 #define UTF8_SIZE 21
549 struct utf8_data {
550 	u_char	data[UTF8_SIZE];
551 
552 	u_char	have;
553 	u_char	size;
554 
555 	u_char	width;	/* 0xff if invalid */
556 };
557 enum utf8_state {
558 	UTF8_MORE,
559 	UTF8_DONE,
560 	UTF8_ERROR
561 };
562 
563 /* Colour flags. */
564 #define COLOUR_FLAG_256 0x01000000
565 #define COLOUR_FLAG_RGB 0x02000000
566 
567 /* Special colours. */
568 #define COLOUR_DEFAULT(c) ((c) == 8 || (c) == 9)
569 
570 /* Replacement palette. */
571 struct colour_palette {
572 	int	 fg;
573 	int	 bg;
574 
575 	int	*palette;
576 	int	*default_palette;
577 };
578 
579 /* Grid attributes. Anything above 0xff is stored in an extended cell. */
580 #define GRID_ATTR_BRIGHT 0x1
581 #define GRID_ATTR_DIM 0x2
582 #define GRID_ATTR_UNDERSCORE 0x4
583 #define GRID_ATTR_BLINK 0x8
584 #define GRID_ATTR_REVERSE 0x10
585 #define GRID_ATTR_HIDDEN 0x20
586 #define GRID_ATTR_ITALICS 0x40
587 #define GRID_ATTR_CHARSET 0x80	/* alternative character set */
588 #define GRID_ATTR_STRIKETHROUGH 0x100
589 #define GRID_ATTR_UNDERSCORE_2 0x200
590 #define GRID_ATTR_UNDERSCORE_3 0x400
591 #define GRID_ATTR_UNDERSCORE_4 0x800
592 #define GRID_ATTR_UNDERSCORE_5 0x1000
593 #define GRID_ATTR_OVERLINE 0x2000
594 
595 /* All underscore attributes. */
596 #define GRID_ATTR_ALL_UNDERSCORE \
597 	(GRID_ATTR_UNDERSCORE|	 \
598 	 GRID_ATTR_UNDERSCORE_2| \
599 	 GRID_ATTR_UNDERSCORE_3| \
600 	 GRID_ATTR_UNDERSCORE_4| \
601 	 GRID_ATTR_UNDERSCORE_5)
602 
603 /* Grid flags. */
604 #define GRID_FLAG_FG256 0x1
605 #define GRID_FLAG_BG256 0x2
606 #define GRID_FLAG_PADDING 0x4
607 #define GRID_FLAG_EXTENDED 0x8
608 #define GRID_FLAG_SELECTED 0x10
609 #define GRID_FLAG_NOPALETTE 0x20
610 #define GRID_FLAG_CLEARED 0x40
611 
612 /* Grid line flags. */
613 #define GRID_LINE_WRAPPED 0x1
614 #define GRID_LINE_EXTENDED 0x2
615 #define GRID_LINE_DEAD 0x4
616 
617 #define CELL_INSIDE 0
618 #define CELL_TOPBOTTOM 1
619 #define CELL_LEFTRIGHT 2
620 #define CELL_TOPLEFT 3
621 #define CELL_TOPRIGHT 4
622 #define CELL_BOTTOMLEFT 5
623 #define CELL_BOTTOMRIGHT 6
624 #define CELL_TOPJOIN 7
625 #define CELL_BOTTOMJOIN 8
626 #define CELL_LEFTJOIN 9
627 #define CELL_RIGHTJOIN 10
628 #define CELL_JOIN 11
629 #define CELL_OUTSIDE 12
630 
631 #define CELL_BORDERS " xqlkmjwvtun~"
632 #define SIMPLE_BORDERS " |-+++++++++."
633 #define PADDED_BORDERS "             "
634 
635 /* Grid cell data. */
636 struct grid_cell {
637 	struct utf8_data	data;
638 	u_short			attr;
639 	u_char			flags;
640 	int			fg;
641 	int			bg;
642 	int			us;
643 };
644 
645 /* Grid extended cell entry. */
646 struct grid_extd_entry {
647 	utf8_char		data;
648 	u_short			attr;
649 	u_char			flags;
650 	int			fg;
651 	int			bg;
652 	int			us;
653 } __packed;
654 
655 /* Grid cell entry. */
656 struct grid_cell_entry {
657 	u_char			flags;
658 	union {
659 		u_int		offset;
660 		struct {
661 			u_char	attr;
662 			u_char	fg;
663 			u_char	bg;
664 			u_char	data;
665 		} data;
666 	};
667 } __packed;
668 
669 /* Grid line. */
670 struct grid_line {
671 	u_int			 cellused;
672 	u_int			 cellsize;
673 	struct grid_cell_entry	*celldata;
674 
675 	u_int			 extdsize;
676 	struct grid_extd_entry	*extddata;
677 
678 	int			 flags;
679 } __packed;
680 
681 /* Entire grid of cells. */
682 struct grid {
683 	int			 flags;
684 #define GRID_HISTORY 0x1 /* scroll lines into history */
685 
686 	u_int			 sx;
687 	u_int			 sy;
688 
689 	u_int			 hscrolled;
690 	u_int			 hsize;
691 	u_int			 hlimit;
692 
693 	struct grid_line	*linedata;
694 };
695 
696 /* Virtual cursor in a grid. */
697 struct grid_reader {
698 	struct grid	*gd;
699 	u_int		 cx;
700 	u_int		 cy;
701 };
702 
703 /* Style alignment. */
704 enum style_align {
705 	STYLE_ALIGN_DEFAULT,
706 	STYLE_ALIGN_LEFT,
707 	STYLE_ALIGN_CENTRE,
708 	STYLE_ALIGN_RIGHT,
709 	STYLE_ALIGN_ABSOLUTE_CENTRE
710 };
711 
712 /* Style list. */
713 enum style_list {
714 	STYLE_LIST_OFF,
715 	STYLE_LIST_ON,
716 	STYLE_LIST_FOCUS,
717 	STYLE_LIST_LEFT_MARKER,
718 	STYLE_LIST_RIGHT_MARKER,
719 };
720 
721 /* Style range. */
722 enum style_range_type {
723 	STYLE_RANGE_NONE,
724 	STYLE_RANGE_LEFT,
725 	STYLE_RANGE_RIGHT,
726 	STYLE_RANGE_WINDOW
727 };
728 struct style_range {
729 	enum style_range_type	 type;
730 	u_int			 argument;
731 
732 	u_int			 start;
733 	u_int			 end; /* not included */
734 
735 	TAILQ_ENTRY(style_range) entry;
736 };
737 TAILQ_HEAD(style_ranges, style_range);
738 
739 /* Style default. */
740 enum style_default_type {
741 	STYLE_DEFAULT_BASE,
742 	STYLE_DEFAULT_PUSH,
743 	STYLE_DEFAULT_POP
744 };
745 
746 /* Style option. */
747 struct style {
748 	struct grid_cell	gc;
749 	int			ignore;
750 
751 	int			fill;
752 	enum style_align	align;
753 	enum style_list		list;
754 
755 	enum style_range_type	range_type;
756 	u_int			range_argument;
757 
758 	enum style_default_type	default_type;
759 };
760 
761 /* Cursor style. */
762 enum screen_cursor_style {
763 	SCREEN_CURSOR_DEFAULT,
764 	SCREEN_CURSOR_BLOCK,
765 	SCREEN_CURSOR_UNDERLINE,
766 	SCREEN_CURSOR_BAR
767 };
768 
769 /* Virtual screen. */
770 struct screen_sel;
771 struct screen_titles;
772 struct screen {
773 	char				*title;
774 	char				*path;
775 	struct screen_titles		*titles;
776 
777 	struct grid			*grid;	  /* grid data */
778 
779 	u_int				 cx;	  /* cursor x */
780 	u_int				 cy;	  /* cursor y */
781 
782 	enum screen_cursor_style	 cstyle;  /* cursor style */
783 	enum screen_cursor_style	 default_cstyle;
784 	int				 ccolour; /* cursor colour */
785 	int				 default_ccolour;
786 
787 	u_int				 rupper;  /* scroll region top */
788 	u_int				 rlower;  /* scroll region bottom */
789 
790 	int				 mode;
791 	int				 default_mode;
792 
793 	u_int				 saved_cx;
794 	u_int				 saved_cy;
795 	struct grid			*saved_grid;
796 	struct grid_cell		 saved_cell;
797 	int				 saved_flags;
798 
799 	bitstr_t			*tabs;
800 	struct screen_sel		*sel;
801 
802 	struct screen_write_cline	*write_list;
803 };
804 
805 /* Screen write context. */
806 typedef void (*screen_write_init_ctx_cb)(struct screen_write_ctx *,
807     struct tty_ctx *);
808 struct screen_write_ctx {
809 	struct window_pane		*wp;
810 	struct screen			*s;
811 
812 	int				 flags;
813 #define SCREEN_WRITE_SYNC 0x1
814 #define SCREEN_WRITE_ZWJ 0x2
815 
816 	screen_write_init_ctx_cb	 init_ctx_cb;
817 	void				*arg;
818 
819 	struct screen_write_citem	*item;
820 	u_int				 scrolled;
821 	u_int				 bg;
822 };
823 
824 /* Box border lines option. */
825 enum box_lines {
826 	BOX_LINES_DEFAULT = -1,
827 	BOX_LINES_SINGLE,
828 	BOX_LINES_DOUBLE,
829 	BOX_LINES_HEAVY,
830 	BOX_LINES_SIMPLE,
831 	BOX_LINES_ROUNDED,
832 	BOX_LINES_PADDED,
833 	BOX_LINES_NONE
834 };
835 
836 /* Pane border lines option. */
837 enum pane_lines {
838 	PANE_LINES_SINGLE,
839 	PANE_LINES_DOUBLE,
840 	PANE_LINES_HEAVY,
841 	PANE_LINES_SIMPLE,
842 	PANE_LINES_NUMBER
843 };
844 
845 /* Screen redraw context. */
846 struct screen_redraw_ctx {
847 	struct client	*c;
848 
849 	u_int		 statuslines;
850 	int		 statustop;
851 
852 	int		 pane_status;
853 	enum pane_lines	 pane_lines;
854 
855 	struct grid_cell no_pane_gc;
856 	int		 no_pane_gc_set;
857 
858 	u_int		 sx;
859 	u_int		 sy;
860 	u_int		 ox;
861 	u_int		 oy;
862 };
863 
864 /* Screen size. */
865 #define screen_size_x(s) ((s)->grid->sx)
866 #define screen_size_y(s) ((s)->grid->sy)
867 #define screen_hsize(s) ((s)->grid->hsize)
868 #define screen_hlimit(s) ((s)->grid->hlimit)
869 
870 /* Menu. */
871 struct menu_item {
872 	const char	*name;
873 	key_code	 key;
874 	const char	*command;
875 };
876 struct menu {
877 	const char		*title;
878 	struct menu_item	*items;
879 	u_int			 count;
880 	u_int			 width;
881 };
882 typedef void (*menu_choice_cb)(struct menu *, u_int, key_code, void *);
883 
884 /*
885  * Window mode. Windows can be in several modes and this is used to call the
886  * right function to handle input and output.
887  */
888 struct window_mode_entry;
889 struct window_mode {
890 	const char	*name;
891 	const char	*default_format;
892 
893 	struct screen	*(*init)(struct window_mode_entry *,
894 			     struct cmd_find_state *, struct args *);
895 	void		 (*free)(struct window_mode_entry *);
896 	void		 (*resize)(struct window_mode_entry *, u_int, u_int);
897 	void		 (*update)(struct window_mode_entry *);
898 	void		 (*key)(struct window_mode_entry *, struct client *,
899 			     struct session *, struct winlink *, key_code,
900 			     struct mouse_event *);
901 
902 	const char	*(*key_table)(struct window_mode_entry *);
903 	void		 (*command)(struct window_mode_entry *, struct client *,
904 			     struct session *, struct winlink *, struct args *,
905 			     struct mouse_event *);
906 	void		 (*formats)(struct window_mode_entry *,
907 			     struct format_tree *);
908 };
909 
910 /* Active window mode. */
911 struct window_mode_entry {
912 	struct window_pane		*wp;
913 	struct window_pane		*swp;
914 
915 	const struct window_mode	*mode;
916 	void				*data;
917 
918 	struct screen			*screen;
919 	u_int				 prefix;
920 
921 	TAILQ_ENTRY(window_mode_entry)	 entry;
922 };
923 
924 /* Offsets into pane buffer. */
925 struct window_pane_offset {
926 	size_t	used;
927 };
928 
929 /* Queued pane resize. */
930 struct window_pane_resize {
931 	u_int				sx;
932 	u_int				sy;
933 
934 	u_int				osx;
935 	u_int				osy;
936 
937 	TAILQ_ENTRY(window_pane_resize)	entry;
938 };
939 TAILQ_HEAD(window_pane_resizes, window_pane_resize);
940 
941 /* Child window structure. */
942 struct window_pane {
943 	u_int		 id;
944 	u_int		 active_point;
945 
946 	struct window	*window;
947 	struct options	*options;
948 
949 	struct layout_cell *layout_cell;
950 	struct layout_cell *saved_layout_cell;
951 
952 	u_int		 sx;
953 	u_int		 sy;
954 
955 	u_int		 xoff;
956 	u_int		 yoff;
957 
958 	int		 flags;
959 #define PANE_REDRAW 0x1
960 #define PANE_DROP 0x2
961 #define PANE_FOCUSED 0x4
962 /* 0x8 unused */
963 /* 0x10 unused */
964 /* 0x20 unused */
965 #define PANE_INPUTOFF 0x40
966 #define PANE_CHANGED 0x80
967 #define PANE_EXITED 0x100
968 #define PANE_STATUSREADY 0x200
969 #define PANE_STATUSDRAWN 0x400
970 #define PANE_EMPTY 0x800
971 #define PANE_STYLECHANGED 0x1000
972 
973 	int		 argc;
974 	char	       **argv;
975 	char		*shell;
976 	char		*cwd;
977 
978 	pid_t		 pid;
979 	char		 tty[TTY_NAME_MAX];
980 	int		 status;
981 
982 	int		 fd;
983 	struct bufferevent *event;
984 
985 	struct window_pane_offset offset;
986 	size_t		 base_offset;
987 
988 	struct window_pane_resizes resize_queue;
989 	struct event	 resize_timer;
990 
991 	struct input_ctx *ictx;
992 
993 	struct grid_cell cached_gc;
994 	struct grid_cell cached_active_gc;
995 	struct colour_palette palette;
996 
997 	int		 pipe_fd;
998 	struct bufferevent *pipe_event;
999 	struct window_pane_offset pipe_offset;
1000 
1001 	struct screen	*screen;
1002 	struct screen	 base;
1003 
1004 	struct screen	 status_screen;
1005 	size_t		 status_size;
1006 
1007 	TAILQ_HEAD(, window_mode_entry) modes;
1008 
1009 	char		*searchstr;
1010 	int		 searchregex;
1011 
1012 	int		 border_gc_set;
1013 	struct grid_cell border_gc;
1014 
1015 	TAILQ_ENTRY(window_pane) entry;
1016 	RB_ENTRY(window_pane) tree_entry;
1017 };
1018 TAILQ_HEAD(window_panes, window_pane);
1019 RB_HEAD(window_pane_tree, window_pane);
1020 
1021 /* Window structure. */
1022 struct window {
1023 	u_int		 id;
1024 	void		*latest;
1025 
1026 	char		*name;
1027 	struct event	 name_event;
1028 	struct timeval	 name_time;
1029 
1030 	struct event	 alerts_timer;
1031 	struct event	 offset_timer;
1032 
1033 	struct timeval	 activity_time;
1034 
1035 	struct window_pane *active;
1036 	struct window_pane *last;
1037 	struct window_panes panes;
1038 
1039 	int		 lastlayout;
1040 	struct layout_cell *layout_root;
1041 	struct layout_cell *saved_layout_root;
1042 	char		*old_layout;
1043 
1044 	u_int		 sx;
1045 	u_int		 sy;
1046 	u_int		 manual_sx;
1047 	u_int		 manual_sy;
1048 	u_int		 xpixel;
1049 	u_int		 ypixel;
1050 
1051 	u_int		 new_sx;
1052 	u_int		 new_sy;
1053 	u_int		 new_xpixel;
1054 	u_int		 new_ypixel;
1055 
1056 	int		 flags;
1057 #define WINDOW_BELL 0x1
1058 #define WINDOW_ACTIVITY 0x2
1059 #define WINDOW_SILENCE 0x4
1060 #define WINDOW_ZOOMED 0x8
1061 #define WINDOW_WASZOOMED 0x10
1062 #define WINDOW_RESIZE 0x20
1063 #define WINDOW_ALERTFLAGS (WINDOW_BELL|WINDOW_ACTIVITY|WINDOW_SILENCE)
1064 
1065 	int		 alerts_queued;
1066 	TAILQ_ENTRY(window) alerts_entry;
1067 
1068 	struct options	*options;
1069 
1070 	u_int		 references;
1071 	TAILQ_HEAD(, winlink) winlinks;
1072 
1073 	RB_ENTRY(window) entry;
1074 };
1075 RB_HEAD(windows, window);
1076 
1077 /* Entry on local window list. */
1078 struct winlink {
1079 	int		 idx;
1080 	struct session	*session;
1081 	struct window	*window;
1082 
1083 	int		 flags;
1084 #define WINLINK_BELL 0x1
1085 #define WINLINK_ACTIVITY 0x2
1086 #define WINLINK_SILENCE 0x4
1087 #define WINLINK_ALERTFLAGS (WINLINK_BELL|WINLINK_ACTIVITY|WINLINK_SILENCE)
1088 
1089 	RB_ENTRY(winlink) entry;
1090 	TAILQ_ENTRY(winlink) wentry;
1091 	TAILQ_ENTRY(winlink) sentry;
1092 };
1093 RB_HEAD(winlinks, winlink);
1094 TAILQ_HEAD(winlink_stack, winlink);
1095 
1096 /* Window size option. */
1097 #define WINDOW_SIZE_LARGEST 0
1098 #define WINDOW_SIZE_SMALLEST 1
1099 #define WINDOW_SIZE_MANUAL 2
1100 #define WINDOW_SIZE_LATEST 3
1101 
1102 /* Pane border status option. */
1103 #define PANE_STATUS_OFF 0
1104 #define PANE_STATUS_TOP 1
1105 #define PANE_STATUS_BOTTOM 2
1106 
1107 /* Layout direction. */
1108 enum layout_type {
1109 	LAYOUT_LEFTRIGHT,
1110 	LAYOUT_TOPBOTTOM,
1111 	LAYOUT_WINDOWPANE
1112 };
1113 
1114 /* Layout cells queue. */
1115 TAILQ_HEAD(layout_cells, layout_cell);
1116 
1117 /* Layout cell. */
1118 struct layout_cell {
1119 	enum layout_type type;
1120 
1121 	struct layout_cell *parent;
1122 
1123 	u_int		 sx;
1124 	u_int		 sy;
1125 
1126 	u_int		 xoff;
1127 	u_int		 yoff;
1128 
1129 	struct window_pane *wp;
1130 	struct layout_cells cells;
1131 
1132 	TAILQ_ENTRY(layout_cell) entry;
1133 };
1134 
1135 /* Environment variable. */
1136 struct environ_entry {
1137 	char		*name;
1138 	char		*value;
1139 
1140 	int		 flags;
1141 #define ENVIRON_HIDDEN 0x1
1142 
1143 	RB_ENTRY(environ_entry) entry;
1144 };
1145 
1146 /* Client session. */
1147 struct session_group {
1148 	const char		*name;
1149 	TAILQ_HEAD(, session)	 sessions;
1150 
1151 	RB_ENTRY(session_group)	 entry;
1152 };
1153 RB_HEAD(session_groups, session_group);
1154 
1155 struct session {
1156 	u_int		 id;
1157 
1158 	char		*name;
1159 	const char	*cwd;
1160 
1161 	struct timeval	 creation_time;
1162 	struct timeval	 last_attached_time;
1163 	struct timeval	 activity_time;
1164 	struct timeval	 last_activity_time;
1165 
1166 	struct event	 lock_timer;
1167 
1168 	struct winlink	*curw;
1169 	struct winlink_stack lastw;
1170 	struct winlinks	 windows;
1171 
1172 	int		 statusat;
1173 	u_int		 statuslines;
1174 
1175 	struct options	*options;
1176 
1177 #define SESSION_PASTING 0x1
1178 #define SESSION_ALERTED 0x2
1179 	int		 flags;
1180 
1181 	u_int		 attached;
1182 
1183 	struct termios	*tio;
1184 
1185 	struct environ	*environ;
1186 
1187 	int		 references;
1188 
1189 	TAILQ_ENTRY(session) gentry;
1190 	RB_ENTRY(session)    entry;
1191 };
1192 RB_HEAD(sessions, session);
1193 
1194 /* Mouse button masks. */
1195 #define MOUSE_MASK_BUTTONS 3
1196 #define MOUSE_MASK_SHIFT 4
1197 #define MOUSE_MASK_META 8
1198 #define MOUSE_MASK_CTRL 16
1199 #define MOUSE_MASK_DRAG 32
1200 #define MOUSE_MASK_WHEEL 64
1201 #define MOUSE_MASK_MODIFIERS (MOUSE_MASK_SHIFT|MOUSE_MASK_META|MOUSE_MASK_CTRL)
1202 
1203 /* Mouse wheel states. */
1204 #define MOUSE_WHEEL_UP 0
1205 #define MOUSE_WHEEL_DOWN 1
1206 
1207 /* Mouse helpers. */
1208 #define MOUSE_BUTTONS(b) ((b) & MOUSE_MASK_BUTTONS)
1209 #define MOUSE_WHEEL(b) ((b) & MOUSE_MASK_WHEEL)
1210 #define MOUSE_DRAG(b) ((b) & MOUSE_MASK_DRAG)
1211 #define MOUSE_RELEASE(b) (((b) & MOUSE_MASK_BUTTONS) == 3)
1212 
1213 /* Mouse input. */
1214 struct mouse_event {
1215 	int		valid;
1216 	int		ignore;
1217 
1218 	key_code	key;
1219 
1220 	int		statusat;
1221 	u_int		statuslines;
1222 
1223 	u_int		x;
1224 	u_int		y;
1225 	u_int		b;
1226 
1227 	u_int		lx;
1228 	u_int		ly;
1229 	u_int		lb;
1230 
1231 	u_int		ox;
1232 	u_int		oy;
1233 
1234 	int		s;
1235 	int		w;
1236 	int		wp;
1237 
1238 	u_int		sgr_type;
1239 	u_int		sgr_b;
1240 };
1241 
1242 /* Key event. */
1243 struct key_event {
1244 	key_code		key;
1245 	struct mouse_event	m;
1246 };
1247 
1248 /* Terminal definition. */
1249 struct tty_term {
1250 	char		*name;
1251 	struct tty	*tty;
1252 	int		 features;
1253 
1254 	char		 acs[UCHAR_MAX + 1][2];
1255 
1256 	struct tty_code	*codes;
1257 
1258 #define TERM_256COLOURS 0x1
1259 #define TERM_NOAM 0x2
1260 #define TERM_DECSLRM 0x4
1261 #define TERM_DECFRA 0x8
1262 #define TERM_RGBCOLOURS 0x10
1263 #define TERM_VT100LIKE 0x20
1264 	int		 flags;
1265 
1266 	LIST_ENTRY(tty_term) entry;
1267 };
1268 LIST_HEAD(tty_terms, tty_term);
1269 
1270 /* Client terminal. */
1271 struct tty {
1272 	struct client	*client;
1273 	struct event	 start_timer;
1274 
1275 	u_int		 sx;
1276 	u_int		 sy;
1277 	u_int		 xpixel;
1278 	u_int		 ypixel;
1279 
1280 	u_int		 cx;
1281 	u_int		 cy;
1282 	enum screen_cursor_style cstyle;
1283 	int		 ccolour;
1284 
1285 	int		 oflag;
1286 	u_int		 oox;
1287 	u_int		 ooy;
1288 	u_int		 osx;
1289 	u_int		 osy;
1290 
1291 	int		 mode;
1292 
1293 	u_int		 rlower;
1294 	u_int		 rupper;
1295 
1296 	u_int		 rleft;
1297 	u_int		 rright;
1298 
1299 	struct event	 event_in;
1300 	struct evbuffer	*in;
1301 	struct event	 event_out;
1302 	struct evbuffer	*out;
1303 	struct event	 timer;
1304 	size_t		 discarded;
1305 
1306 	struct termios	 tio;
1307 
1308 	struct grid_cell cell;
1309 	struct grid_cell last_cell;
1310 
1311 #define TTY_NOCURSOR 0x1
1312 #define TTY_FREEZE 0x2
1313 #define TTY_TIMER 0x4
1314 #define TTY_NOBLOCK 0x8
1315 #define TTY_STARTED 0x10
1316 #define TTY_OPENED 0x20
1317 /* 0x40 unused */
1318 #define TTY_BLOCK 0x80
1319 #define TTY_HAVEDA 0x100
1320 #define TTY_HAVEXDA 0x200
1321 #define TTY_SYNCING 0x400
1322 	int		 flags;
1323 
1324 	struct tty_term	*term;
1325 
1326 	u_int		 mouse_last_x;
1327 	u_int		 mouse_last_y;
1328 	u_int		 mouse_last_b;
1329 	int		 mouse_drag_flag;
1330 	void		(*mouse_drag_update)(struct client *,
1331 			    struct mouse_event *);
1332 	void		(*mouse_drag_release)(struct client *,
1333 			    struct mouse_event *);
1334 
1335 	struct event	 key_timer;
1336 	struct tty_key	*key_tree;
1337 };
1338 
1339 /* Terminal command context. */
1340 typedef void (*tty_ctx_redraw_cb)(const struct tty_ctx *);
1341 typedef int (*tty_ctx_set_client_cb)(struct tty_ctx *, struct client *);
1342 struct tty_ctx {
1343 	struct screen		*s;
1344 
1345 	tty_ctx_redraw_cb	 redraw_cb;
1346 	tty_ctx_set_client_cb	 set_client_cb;
1347 	void			*arg;
1348 
1349 	const struct grid_cell	*cell;
1350 	int			 wrapped;
1351 
1352 	u_int			 num;
1353 	void			*ptr;
1354 
1355 	/*
1356 	 * Cursor and region position before the screen was updated - this is
1357 	 * where the command should be applied; the values in the screen have
1358 	 * already been updated.
1359 	 */
1360 	u_int		 ocx;
1361 	u_int		 ocy;
1362 
1363 	u_int		 orupper;
1364 	u_int		 orlower;
1365 
1366 	/* Target region (usually pane) offset and size. */
1367 	u_int		 xoff;
1368 	u_int		 yoff;
1369 	u_int		 rxoff;
1370 	u_int		 ryoff;
1371 	u_int		 sx;
1372 	u_int		 sy;
1373 
1374 	/* The background colour used for clearing (erasing). */
1375 	u_int		 bg;
1376 
1377 	/* The default colours and palette. */
1378 	struct grid_cell defaults;
1379 	struct colour_palette *palette;
1380 
1381 	/* Containing region (usually window) offset and size. */
1382 	int		 bigger;
1383 	u_int		 wox;
1384 	u_int		 woy;
1385 	u_int		 wsx;
1386 	u_int		 wsy;
1387 };
1388 
1389 /* Saved message entry. */
1390 struct message_entry {
1391 	char				*msg;
1392 	u_int				 msg_num;
1393 	struct timeval			 msg_time;
1394 
1395 	TAILQ_ENTRY(message_entry)	 entry;
1396 };
1397 TAILQ_HEAD(message_list, message_entry);
1398 
1399 /* Argument type. */
1400 enum args_type {
1401 	ARGS_NONE,
1402 	ARGS_STRING,
1403 	ARGS_COMMANDS
1404 };
1405 
1406 /* Argument value. */
1407 struct args_value {
1408 	enum args_type		 type;
1409 	union {
1410 		char		*string;
1411 		struct cmd_list	*cmdlist;
1412 	};
1413 	char			*cached;
1414 	TAILQ_ENTRY(args_value)	 entry;
1415 };
1416 
1417 /* Arguments set. */
1418 struct args_entry;
1419 RB_HEAD(args_tree, args_entry);
1420 
1421 /* Arguments parsing type. */
1422 enum args_parse_type {
1423 	ARGS_PARSE_INVALID,
1424 	ARGS_PARSE_STRING,
1425 	ARGS_PARSE_COMMANDS_OR_STRING,
1426 	ARGS_PARSE_COMMANDS
1427 };
1428 
1429 /* Arguments parsing state. */
1430 typedef enum args_parse_type (*args_parse_cb)(struct args *, u_int, char **);
1431 struct args_parse {
1432 	const char	*template;
1433 	int		 lower;
1434 	int		 upper;
1435 	args_parse_cb	 cb;
1436 };
1437 
1438 /* Command find structures. */
1439 enum cmd_find_type {
1440 	CMD_FIND_PANE,
1441 	CMD_FIND_WINDOW,
1442 	CMD_FIND_SESSION,
1443 };
1444 struct cmd_find_state {
1445 	int			 flags;
1446 	struct cmd_find_state	*current;
1447 
1448 	struct session		*s;
1449 	struct winlink		*wl;
1450 	struct window		*w;
1451 	struct window_pane	*wp;
1452 	int			 idx;
1453 };
1454 
1455 /* Command find flags. */
1456 #define CMD_FIND_PREFER_UNATTACHED 0x1
1457 #define CMD_FIND_QUIET 0x2
1458 #define CMD_FIND_WINDOW_INDEX 0x4
1459 #define CMD_FIND_DEFAULT_MARKED 0x8
1460 #define CMD_FIND_EXACT_SESSION 0x10
1461 #define CMD_FIND_EXACT_WINDOW 0x20
1462 #define CMD_FIND_CANFAIL 0x40
1463 
1464 /* List of commands. */
1465 struct cmd_list {
1466 	int		 references;
1467 	u_int		 group;
1468 	struct cmds	*list;
1469 };
1470 
1471 /* Command return values. */
1472 enum cmd_retval {
1473 	CMD_RETURN_ERROR = -1,
1474 	CMD_RETURN_NORMAL = 0,
1475 	CMD_RETURN_WAIT,
1476 	CMD_RETURN_STOP
1477 };
1478 
1479 /* Command parse result. */
1480 enum cmd_parse_status {
1481 	CMD_PARSE_ERROR,
1482 	CMD_PARSE_SUCCESS
1483 };
1484 struct cmd_parse_result {
1485 	enum cmd_parse_status	 status;
1486 	struct cmd_list		*cmdlist;
1487 	char			*error;
1488 };
1489 struct cmd_parse_input {
1490 	int			 flags;
1491 #define CMD_PARSE_QUIET 0x1
1492 #define CMD_PARSE_PARSEONLY 0x2
1493 #define CMD_PARSE_NOALIAS 0x4
1494 #define CMD_PARSE_VERBOSE 0x8
1495 #define CMD_PARSE_ONEGROUP 0x10
1496 
1497 	const char		*file;
1498 	u_int			 line;
1499 
1500 	struct cmdq_item	*item;
1501 	struct client		*c;
1502 	struct cmd_find_state	 fs;
1503 };
1504 
1505 /* Command queue flags. */
1506 #define CMDQ_STATE_REPEAT 0x1
1507 #define CMDQ_STATE_CONTROL 0x2
1508 #define CMDQ_STATE_NOHOOKS 0x4
1509 
1510 /* Command queue callback. */
1511 typedef enum cmd_retval (*cmdq_cb) (struct cmdq_item *, void *);
1512 
1513 /* Command definition flag. */
1514 struct cmd_entry_flag {
1515 	char			 flag;
1516 	enum cmd_find_type	 type;
1517 	int			 flags;
1518 };
1519 
1520 /* Command definition. */
1521 struct cmd_entry {
1522 	const char		*name;
1523 	const char		*alias;
1524 
1525 	struct args_parse	 args;
1526 	const char		*usage;
1527 
1528 	struct cmd_entry_flag	 source;
1529 	struct cmd_entry_flag	 target;
1530 
1531 #define CMD_STARTSERVER 0x1
1532 #define CMD_READONLY 0x2
1533 #define CMD_AFTERHOOK 0x4
1534 #define CMD_CLIENT_CFLAG 0x8
1535 #define CMD_CLIENT_TFLAG 0x10
1536 #define CMD_CLIENT_CANFAIL 0x20
1537 	int		 flags;
1538 
1539 	enum cmd_retval	 (*exec)(struct cmd *, struct cmdq_item *);
1540 };
1541 
1542 /* Status line. */
1543 #define STATUS_LINES_LIMIT 5
1544 struct status_line_entry {
1545 	char			*expanded;
1546 	struct style_ranges	 ranges;
1547 };
1548 struct status_line {
1549 	struct event		 timer;
1550 
1551 	struct screen		 screen;
1552 	struct screen		*active;
1553 	int			 references;
1554 
1555 	struct grid_cell	 style;
1556 	struct status_line_entry entries[STATUS_LINES_LIMIT];
1557 };
1558 
1559 /* Prompt type. */
1560 #define PROMPT_NTYPES 4
1561 enum prompt_type {
1562 	PROMPT_TYPE_COMMAND,
1563 	PROMPT_TYPE_SEARCH,
1564 	PROMPT_TYPE_TARGET,
1565 	PROMPT_TYPE_WINDOW_TARGET,
1566 	PROMPT_TYPE_INVALID = 0xff
1567 };
1568 
1569 /* File in client. */
1570 typedef void (*client_file_cb) (struct client *, const char *, int, int,
1571     struct evbuffer *, void *);
1572 struct client_file {
1573 	struct client			*c;
1574 	struct tmuxpeer			*peer;
1575 	struct client_files		*tree;
1576 	int				 references;
1577 	int				 stream;
1578 
1579 	char				*path;
1580 	struct evbuffer			*buffer;
1581 	struct bufferevent		*event;
1582 
1583 	int				 fd;
1584 	int				 error;
1585 	int				 closed;
1586 
1587 	client_file_cb			 cb;
1588 	void				*data;
1589 
1590 	RB_ENTRY(client_file)		 entry;
1591 };
1592 RB_HEAD(client_files, client_file);
1593 
1594 /* Client window. */
1595 struct client_window {
1596 	u_int			 window;
1597 	struct window_pane	*pane;
1598 
1599 	u_int			 sx;
1600 	u_int			 sy;
1601 
1602 	RB_ENTRY(client_window)	 entry;
1603 };
1604 RB_HEAD(client_windows, client_window);
1605 
1606 /* Visible areas not obstructed by overlays. */
1607 #define OVERLAY_MAX_RANGES 3
1608 struct overlay_ranges {
1609 	u_int	px[OVERLAY_MAX_RANGES];
1610 	u_int	nx[OVERLAY_MAX_RANGES];
1611 };
1612 
1613 /* Client connection. */
1614 typedef int (*prompt_input_cb)(struct client *, void *, const char *, int);
1615 typedef void (*prompt_free_cb)(void *);
1616 typedef void (*overlay_check_cb)(struct client*, void *, u_int, u_int, u_int,
1617 	    struct overlay_ranges *);
1618 typedef struct screen *(*overlay_mode_cb)(struct client *, void *, u_int *,
1619 	    u_int *);
1620 typedef void (*overlay_draw_cb)(struct client *, void *,
1621 	    struct screen_redraw_ctx *);
1622 typedef int (*overlay_key_cb)(struct client *, void *, struct key_event *);
1623 typedef void (*overlay_free_cb)(struct client *, void *);
1624 typedef void (*overlay_resize_cb)(struct client *, void *);
1625 struct client {
1626 	const char	*name;
1627 	struct tmuxpeer	*peer;
1628 	struct cmdq_list *queue;
1629 
1630 	struct client_windows windows;
1631 
1632 	struct control_state *control_state;
1633 	u_int		 pause_age;
1634 
1635 	pid_t		 pid;
1636 	int		 fd;
1637 	int		 out_fd;
1638 	struct event	 event;
1639 	int		 retval;
1640 
1641 	struct timeval	 creation_time;
1642 	struct timeval	 activity_time;
1643 
1644 	struct environ	*environ;
1645 	struct format_job_tree	*jobs;
1646 
1647 	char		*title;
1648 	const char	*cwd;
1649 
1650 	char		*term_name;
1651 	int		 term_features;
1652 	char		*term_type;
1653 	char	       **term_caps;
1654 	u_int		 term_ncaps;
1655 
1656 	char		*ttyname;
1657 	struct tty	 tty;
1658 
1659 	size_t		 written;
1660 	size_t		 discarded;
1661 	size_t		 redraw;
1662 
1663 	struct event	 repeat_timer;
1664 
1665 	struct event	 click_timer;
1666 	u_int		 click_button;
1667 	struct mouse_event click_event;
1668 
1669 	struct status_line status;
1670 
1671 #define CLIENT_TERMINAL 0x1
1672 #define CLIENT_LOGIN 0x2
1673 #define CLIENT_EXIT 0x4
1674 #define CLIENT_REDRAWWINDOW 0x8
1675 #define CLIENT_REDRAWSTATUS 0x10
1676 #define CLIENT_REPEAT 0x20
1677 #define CLIENT_SUSPENDED 0x40
1678 #define CLIENT_ATTACHED 0x80
1679 #define CLIENT_EXITED 0x100
1680 #define CLIENT_DEAD 0x200
1681 #define CLIENT_REDRAWBORDERS 0x400
1682 #define CLIENT_READONLY 0x800
1683 #define CLIENT_NOSTARTSERVER 0x1000
1684 #define CLIENT_CONTROL 0x2000
1685 #define CLIENT_CONTROLCONTROL 0x4000
1686 #define CLIENT_FOCUSED 0x8000
1687 #define CLIENT_UTF8 0x10000
1688 #define CLIENT_IGNORESIZE 0x20000
1689 #define CLIENT_IDENTIFIED 0x40000
1690 #define CLIENT_STATUSFORCE 0x80000
1691 #define CLIENT_DOUBLECLICK 0x100000
1692 #define CLIENT_TRIPLECLICK 0x200000
1693 #define CLIENT_SIZECHANGED 0x400000
1694 #define CLIENT_STATUSOFF 0x800000
1695 #define CLIENT_REDRAWSTATUSALWAYS 0x1000000
1696 #define CLIENT_REDRAWOVERLAY 0x2000000
1697 #define CLIENT_CONTROL_NOOUTPUT 0x4000000
1698 #define CLIENT_DEFAULTSOCKET 0x8000000
1699 #define CLIENT_STARTSERVER 0x10000000
1700 #define CLIENT_REDRAWPANES 0x20000000
1701 #define CLIENT_NOFORK 0x40000000
1702 #define CLIENT_ACTIVEPANE 0x80000000ULL
1703 #define CLIENT_CONTROL_PAUSEAFTER 0x100000000ULL
1704 #define CLIENT_CONTROL_WAITEXIT 0x200000000ULL
1705 #define CLIENT_WINDOWSIZECHANGED 0x400000000ULL
1706 #define CLIENT_ALLREDRAWFLAGS		\
1707 	(CLIENT_REDRAWWINDOW|		\
1708 	 CLIENT_REDRAWSTATUS|		\
1709 	 CLIENT_REDRAWSTATUSALWAYS|	\
1710 	 CLIENT_REDRAWBORDERS|		\
1711 	 CLIENT_REDRAWOVERLAY|		\
1712 	 CLIENT_REDRAWPANES)
1713 #define CLIENT_UNATTACHEDFLAGS	\
1714 	(CLIENT_DEAD|		\
1715 	 CLIENT_SUSPENDED|	\
1716 	 CLIENT_EXIT)
1717 #define CLIENT_NODETACHFLAGS 	\
1718 	(CLIENT_DEAD|		\
1719 	 CLIENT_EXIT)
1720 #define CLIENT_NOSIZEFLAGS	\
1721 	(CLIENT_DEAD|		\
1722 	 CLIENT_SUSPENDED|	\
1723 	 CLIENT_EXIT)
1724 	uint64_t	 flags;
1725 
1726 	enum {
1727 		CLIENT_EXIT_RETURN,
1728 		CLIENT_EXIT_SHUTDOWN,
1729 		CLIENT_EXIT_DETACH
1730 	}		 exit_type;
1731 	enum msgtype	 exit_msgtype;
1732 	char		*exit_session;
1733 	char		*exit_message;
1734 
1735 	struct key_table *keytable;
1736 
1737 	uint64_t	 redraw_panes;
1738 
1739 	int		 message_ignore_keys;
1740 	int		 message_ignore_styles;
1741 	char		*message_string;
1742 	struct event	 message_timer;
1743 
1744 	char		*prompt_string;
1745 	struct utf8_data *prompt_buffer;
1746 	char		*prompt_last;
1747 	size_t		 prompt_index;
1748 	prompt_input_cb	 prompt_inputcb;
1749 	prompt_free_cb	 prompt_freecb;
1750 	void		*prompt_data;
1751 	u_int		 prompt_hindex[PROMPT_NTYPES];
1752 	enum { PROMPT_ENTRY, PROMPT_COMMAND } prompt_mode;
1753 	struct utf8_data *prompt_saved;
1754 #define PROMPT_SINGLE 0x1
1755 #define PROMPT_NUMERIC 0x2
1756 #define PROMPT_INCREMENTAL 0x4
1757 #define PROMPT_NOFORMAT 0x8
1758 #define PROMPT_KEY 0x10
1759 	int		 prompt_flags;
1760 	enum prompt_type prompt_type;
1761 	int              prompt_cursor;
1762 
1763 	struct session	*session;
1764 	struct session	*last_session;
1765 
1766 	int		 references;
1767 
1768 	void		*pan_window;
1769 	u_int		 pan_ox;
1770 	u_int		 pan_oy;
1771 
1772 	overlay_check_cb overlay_check;
1773 	overlay_mode_cb	 overlay_mode;
1774 	overlay_draw_cb	 overlay_draw;
1775 	overlay_key_cb	 overlay_key;
1776 	overlay_free_cb	 overlay_free;
1777 	overlay_resize_cb overlay_resize;
1778 	void		*overlay_data;
1779 	struct event	 overlay_timer;
1780 
1781 	struct client_files files;
1782 
1783 	TAILQ_ENTRY(client) entry;
1784 };
1785 TAILQ_HEAD(clients, client);
1786 
1787 /* Control mode subscription type. */
1788 enum control_sub_type {
1789 	CONTROL_SUB_SESSION,
1790 	CONTROL_SUB_PANE,
1791 	CONTROL_SUB_ALL_PANES,
1792 	CONTROL_SUB_WINDOW,
1793 	CONTROL_SUB_ALL_WINDOWS
1794 };
1795 
1796 /* Key binding and key table. */
1797 struct key_binding {
1798 	key_code		 key;
1799 	struct cmd_list		*cmdlist;
1800 	const char		*note;
1801 
1802 	int			 flags;
1803 #define KEY_BINDING_REPEAT 0x1
1804 
1805 	RB_ENTRY(key_binding)	 entry;
1806 };
1807 RB_HEAD(key_bindings, key_binding);
1808 
1809 struct key_table {
1810 	const char		*name;
1811 	struct key_bindings	 key_bindings;
1812 	struct key_bindings	 default_key_bindings;
1813 
1814 	u_int			 references;
1815 
1816 	RB_ENTRY(key_table)	 entry;
1817 };
1818 RB_HEAD(key_tables, key_table);
1819 
1820 /* Option data. */
1821 RB_HEAD(options_array, options_array_item);
1822 union options_value {
1823 	char			*string;
1824 	long long		 number;
1825 	struct style		 style;
1826 	struct options_array	 array;
1827 	struct cmd_list		*cmdlist;
1828 };
1829 
1830 /* Option table entries. */
1831 enum options_table_type {
1832 	OPTIONS_TABLE_STRING,
1833 	OPTIONS_TABLE_NUMBER,
1834 	OPTIONS_TABLE_KEY,
1835 	OPTIONS_TABLE_COLOUR,
1836 	OPTIONS_TABLE_FLAG,
1837 	OPTIONS_TABLE_CHOICE,
1838 	OPTIONS_TABLE_COMMAND
1839 };
1840 
1841 #define OPTIONS_TABLE_NONE 0
1842 #define OPTIONS_TABLE_SERVER 0x1
1843 #define OPTIONS_TABLE_SESSION 0x2
1844 #define OPTIONS_TABLE_WINDOW 0x4
1845 #define OPTIONS_TABLE_PANE 0x8
1846 
1847 #define OPTIONS_TABLE_IS_ARRAY 0x1
1848 #define OPTIONS_TABLE_IS_HOOK 0x2
1849 #define OPTIONS_TABLE_IS_STYLE 0x4
1850 
1851 struct options_table_entry {
1852 	const char		 *name;
1853 	const char		 *alternative_name;
1854 	enum options_table_type	  type;
1855 	int			  scope;
1856 	int			  flags;
1857 
1858 	u_int			  minimum;
1859 	u_int			  maximum;
1860 	const char		**choices;
1861 
1862 	const char		 *default_str;
1863 	long long		  default_num;
1864 	const char		**default_arr;
1865 
1866 	const char		 *separator;
1867 	const char		 *pattern;
1868 
1869 	const char		 *text;
1870 	const char		 *unit;
1871 };
1872 
1873 struct options_name_map {
1874 	const char		*from;
1875 	const char		*to;
1876 };
1877 
1878 /* Common command usages. */
1879 #define CMD_TARGET_PANE_USAGE "[-t target-pane]"
1880 #define CMD_TARGET_WINDOW_USAGE "[-t target-window]"
1881 #define CMD_TARGET_SESSION_USAGE "[-t target-session]"
1882 #define CMD_TARGET_CLIENT_USAGE "[-t target-client]"
1883 #define CMD_SRCDST_PANE_USAGE "[-s src-pane] [-t dst-pane]"
1884 #define CMD_SRCDST_WINDOW_USAGE "[-s src-window] [-t dst-window]"
1885 #define CMD_SRCDST_SESSION_USAGE "[-s src-session] [-t dst-session]"
1886 #define CMD_SRCDST_CLIENT_USAGE "[-s src-client] [-t dst-client]"
1887 #define CMD_BUFFER_USAGE "[-b buffer-name]"
1888 
1889 /* Spawn common context. */
1890 struct spawn_context {
1891 	struct cmdq_item	 *item;
1892 
1893 	struct session		 *s;
1894 	struct winlink		 *wl;
1895 	struct client		 *tc;
1896 
1897 	struct window_pane	 *wp0;
1898 	struct layout_cell	 *lc;
1899 
1900 	const char		 *name;
1901 	char			**argv;
1902 	int			  argc;
1903 	struct environ		 *environ;
1904 
1905 	int			  idx;
1906 	const char		 *cwd;
1907 
1908 	int			  flags;
1909 #define SPAWN_KILL 0x1
1910 #define SPAWN_DETACHED 0x2
1911 #define SPAWN_RESPAWN 0x4
1912 #define SPAWN_BEFORE 0x8
1913 #define SPAWN_NONOTIFY 0x10
1914 #define SPAWN_FULLSIZE 0x20
1915 #define SPAWN_EMPTY 0x40
1916 #define SPAWN_ZOOM 0x80
1917 };
1918 
1919 /* Mode tree sort order. */
1920 struct mode_tree_sort_criteria {
1921 	u_int	field;
1922 	int	reversed;
1923 };
1924 
1925 /* tmux.c */
1926 extern struct options	*global_options;
1927 extern struct options	*global_s_options;
1928 extern struct options	*global_w_options;
1929 extern struct environ	*global_environ;
1930 extern struct timeval	 start_time;
1931 extern const char	*socket_path;
1932 extern const char	*shell_command;
1933 extern int		 ptm_fd;
1934 extern const char	*shell_command;
1935 int		 checkshell(const char *);
1936 void		 setblocking(int, int);
1937 uint64_t	 get_timer(void);
1938 const char	*sig2name(int);
1939 const char	*find_cwd(void);
1940 const char	*find_home(void);
1941 const char	*getversion(void);
1942 
1943 /* proc.c */
1944 struct imsg;
1945 int	proc_send(struct tmuxpeer *, enum msgtype, int, const void *, size_t);
1946 struct tmuxproc *proc_start(const char *);
1947 void	proc_loop(struct tmuxproc *, int (*)(void));
1948 void	proc_exit(struct tmuxproc *);
1949 void	proc_set_signals(struct tmuxproc *, void(*)(int));
1950 void	proc_clear_signals(struct tmuxproc *, int);
1951 struct tmuxpeer *proc_add_peer(struct tmuxproc *, int,
1952 	    void (*)(struct imsg *, void *), void *);
1953 void	proc_remove_peer(struct tmuxpeer *);
1954 void	proc_kill_peer(struct tmuxpeer *);
1955 void	proc_toggle_log(struct tmuxproc *);
1956 pid_t	proc_fork_and_daemon(int *);
1957 
1958 /* cfg.c */
1959 extern int cfg_finished;
1960 extern struct client *cfg_client;
1961 extern char **cfg_files;
1962 extern u_int cfg_nfiles;
1963 extern int cfg_quiet;
1964 void	start_cfg(void);
1965 int	load_cfg(const char *, struct client *, struct cmdq_item *, int,
1966 	    struct cmdq_item **);
1967 int	load_cfg_from_buffer(const void *, size_t, const char *,
1968 	    struct client *, struct cmdq_item *, int, struct cmdq_item **);
1969 void printflike(1, 2) cfg_add_cause(const char *, ...);
1970 void	cfg_print_causes(struct cmdq_item *);
1971 void	cfg_show_causes(struct session *);
1972 
1973 /* paste.c */
1974 struct paste_buffer;
1975 const char	*paste_buffer_name(struct paste_buffer *);
1976 u_int		 paste_buffer_order(struct paste_buffer *);
1977 time_t		 paste_buffer_created(struct paste_buffer *);
1978 const char	*paste_buffer_data(struct paste_buffer *, size_t *);
1979 struct paste_buffer *paste_walk(struct paste_buffer *);
1980 struct paste_buffer *paste_get_top(const char **);
1981 struct paste_buffer *paste_get_name(const char *);
1982 void		 paste_free(struct paste_buffer *);
1983 void		 paste_add(const char *, char *, size_t);
1984 int		 paste_rename(const char *, const char *, char **);
1985 int		 paste_set(char *, size_t, const char *, char **);
1986 void		 paste_replace(struct paste_buffer *, char *, size_t);
1987 char		*paste_make_sample(struct paste_buffer *);
1988 
1989 /* format.c */
1990 #define FORMAT_STATUS 0x1
1991 #define FORMAT_FORCE 0x2
1992 #define FORMAT_NOJOBS 0x4
1993 #define FORMAT_VERBOSE 0x8
1994 #define FORMAT_NONE 0
1995 #define FORMAT_PANE 0x80000000U
1996 #define FORMAT_WINDOW 0x40000000U
1997 struct format_tree;
1998 struct format_modifier;
1999 typedef void *(*format_cb)(struct format_tree *);
2000 void		 format_tidy_jobs(void);
2001 const char	*format_skip(const char *, const char *);
2002 int		 format_true(const char *);
2003 struct format_tree *format_create(struct client *, struct cmdq_item *, int,
2004 		     int);
2005 void		 format_free(struct format_tree *);
2006 void		 format_merge(struct format_tree *, struct format_tree *);
2007 struct window_pane *format_get_pane(struct format_tree *);
2008 void printflike(3, 4) format_add(struct format_tree *, const char *,
2009 		     const char *, ...);
2010 void		 format_add_tv(struct format_tree *, const char *,
2011 		     struct timeval *);
2012 void		 format_add_cb(struct format_tree *, const char *, format_cb);
2013 void		 format_log_debug(struct format_tree *, const char *);
2014 void		 format_each(struct format_tree *, void (*)(const char *,
2015 		     const char *, void *), void *);
2016 char		*format_expand_time(struct format_tree *, const char *);
2017 char		*format_expand(struct format_tree *, const char *);
2018 char		*format_single(struct cmdq_item *, const char *,
2019 		     struct client *, struct session *, struct winlink *,
2020 		     struct window_pane *);
2021 char		*format_single_from_state(struct cmdq_item *, const char *,
2022 		    struct client *, struct cmd_find_state *);
2023 char		*format_single_from_target(struct cmdq_item *, const char *);
2024 struct format_tree *format_create_defaults(struct cmdq_item *, struct client *,
2025 		     struct session *, struct winlink *, struct window_pane *);
2026 struct format_tree *format_create_from_state(struct cmdq_item *,
2027 		     struct client *, struct cmd_find_state *);
2028 struct format_tree *format_create_from_target(struct cmdq_item *);
2029 void		 format_defaults(struct format_tree *, struct client *,
2030 		     struct session *, struct winlink *, struct window_pane *);
2031 void		 format_defaults_window(struct format_tree *, struct window *);
2032 void		 format_defaults_pane(struct format_tree *,
2033 		     struct window_pane *);
2034 void		 format_defaults_paste_buffer(struct format_tree *,
2035 		     struct paste_buffer *);
2036 void		 format_lost_client(struct client *);
2037 char		*format_grid_word(struct grid *, u_int, u_int);
2038 char		*format_grid_line(struct grid *, u_int);
2039 
2040 /* format-draw.c */
2041 void		 format_draw(struct screen_write_ctx *,
2042 		     const struct grid_cell *, u_int, const char *,
2043 		     struct style_ranges *, int);
2044 u_int		 format_width(const char *);
2045 char		*format_trim_left(const char *, u_int);
2046 char		*format_trim_right(const char *, u_int);
2047 
2048 /* notify.c */
2049 void	notify_hook(struct cmdq_item *, const char *);
2050 void	notify_client(const char *, struct client *);
2051 void	notify_session(const char *, struct session *);
2052 void	notify_winlink(const char *, struct winlink *);
2053 void	notify_session_window(const char *, struct session *, struct window *);
2054 void	notify_window(const char *, struct window *);
2055 void	notify_pane(const char *, struct window_pane *);
2056 
2057 /* options.c */
2058 struct options	*options_create(struct options *);
2059 void		 options_free(struct options *);
2060 struct options	*options_get_parent(struct options *);
2061 void		 options_set_parent(struct options *, struct options *);
2062 struct options_entry *options_first(struct options *);
2063 struct options_entry *options_next(struct options_entry *);
2064 struct options_entry *options_empty(struct options *,
2065 		     const struct options_table_entry *);
2066 struct options_entry *options_default(struct options *,
2067 		     const struct options_table_entry *);
2068 char		*options_default_to_string(const struct options_table_entry *);
2069 const char	*options_name(struct options_entry *);
2070 struct options	*options_owner(struct options_entry *);
2071 const struct options_table_entry *options_table_entry(struct options_entry *);
2072 struct options_entry *options_get_only(struct options *, const char *);
2073 struct options_entry *options_get(struct options *, const char *);
2074 void		 options_array_clear(struct options_entry *);
2075 union options_value *options_array_get(struct options_entry *, u_int);
2076 int		 options_array_set(struct options_entry *, u_int, const char *,
2077 		     int, char **);
2078 int		 options_array_assign(struct options_entry *, const char *,
2079 		     char **);
2080 struct options_array_item *options_array_first(struct options_entry *);
2081 struct options_array_item *options_array_next(struct options_array_item *);
2082 u_int		 options_array_item_index(struct options_array_item *);
2083 union options_value *options_array_item_value(struct options_array_item *);
2084 int		 options_is_array(struct options_entry *);
2085 int		 options_is_string(struct options_entry *);
2086 char		*options_to_string(struct options_entry *, int, int);
2087 char		*options_parse(const char *, int *);
2088 struct options_entry *options_parse_get(struct options *, const char *, int *,
2089 		     int);
2090 char		*options_match(const char *, int *, int *);
2091 struct options_entry *options_match_get(struct options *, const char *, int *,
2092 		     int, int *);
2093 const char	*options_get_string(struct options *, const char *);
2094 long long	 options_get_number(struct options *, const char *);
2095 struct options_entry * printflike(4, 5) options_set_string(struct options *,
2096 		     const char *, int, const char *, ...);
2097 struct options_entry *options_set_number(struct options *, const char *,
2098 		     long long);
2099 int		 options_scope_from_name(struct args *, int,
2100 		     const char *, struct cmd_find_state *, struct options **,
2101 		     char **);
2102 int		 options_scope_from_flags(struct args *, int,
2103 		     struct cmd_find_state *, struct options **, char **);
2104 struct style	*options_string_to_style(struct options *, const char *,
2105 		     struct format_tree *);
2106 int		 options_from_string(struct options *,
2107 		     const struct options_table_entry *, const char *,
2108 		     const char *, int, char **);
2109 int	 	 options_find_choice(const struct options_table_entry *,
2110 		     const char *, char **);
2111 void		 options_push_changes(const char *);
2112 int		 options_remove_or_default(struct options_entry *, int,
2113 		     char **);
2114 
2115 /* options-table.c */
2116 extern const struct options_table_entry	options_table[];
2117 extern const struct options_name_map	options_other_names[];
2118 
2119 /* job.c */
2120 typedef void (*job_update_cb) (struct job *);
2121 typedef void (*job_complete_cb) (struct job *);
2122 typedef void (*job_free_cb) (void *);
2123 #define JOB_NOWAIT 0x1
2124 #define JOB_KEEPWRITE 0x2
2125 #define JOB_PTY 0x4
2126 struct job	*job_run(const char *, int, char **, struct environ *,
2127 		     struct session *, const char *, job_update_cb,
2128 		     job_complete_cb, job_free_cb, void *, int, int, int);
2129 void		 job_free(struct job *);
2130 int		 job_transfer(struct job *, pid_t *, char *, size_t);
2131 void		 job_resize(struct job *, u_int, u_int);
2132 void		 job_check_died(pid_t, int);
2133 int		 job_get_status(struct job *);
2134 void		*job_get_data(struct job *);
2135 struct bufferevent *job_get_event(struct job *);
2136 void		 job_kill_all(void);
2137 int		 job_still_running(void);
2138 void		 job_print_summary(struct cmdq_item *, int);
2139 
2140 /* environ.c */
2141 struct environ *environ_create(void);
2142 void	environ_free(struct environ *);
2143 struct environ_entry *environ_first(struct environ *);
2144 struct environ_entry *environ_next(struct environ_entry *);
2145 void	environ_copy(struct environ *, struct environ *);
2146 struct environ_entry *environ_find(struct environ *, const char *);
2147 void printflike(4, 5) environ_set(struct environ *, const char *, int,
2148 	    const char *, ...);
2149 void	environ_clear(struct environ *, const char *);
2150 void	environ_put(struct environ *, const char *, int);
2151 void	environ_unset(struct environ *, const char *);
2152 void	environ_update(struct options *, struct environ *, struct environ *);
2153 void	environ_push(struct environ *);
2154 void printflike(2, 3) environ_log(struct environ *, const char *, ...);
2155 struct environ *environ_for_session(struct session *, int);
2156 
2157 /* tty.c */
2158 void	tty_create_log(void);
2159 int	tty_window_bigger(struct tty *);
2160 int	tty_window_offset(struct tty *, u_int *, u_int *, u_int *, u_int *);
2161 void	tty_update_window_offset(struct window *);
2162 void	tty_update_client_offset(struct client *);
2163 void	tty_raw(struct tty *, const char *);
2164 void	tty_attributes(struct tty *, const struct grid_cell *,
2165 	    const struct grid_cell *, struct colour_palette *);
2166 void	tty_reset(struct tty *);
2167 void	tty_region_off(struct tty *);
2168 void	tty_margin_off(struct tty *);
2169 void	tty_cursor(struct tty *, u_int, u_int);
2170 void	tty_putcode(struct tty *, enum tty_code_code);
2171 void	tty_putcode1(struct tty *, enum tty_code_code, int);
2172 void	tty_putcode2(struct tty *, enum tty_code_code, int, int);
2173 void	tty_putcode3(struct tty *, enum tty_code_code, int, int, int);
2174 void	tty_putcode_ptr1(struct tty *, enum tty_code_code, const void *);
2175 void	tty_putcode_ptr2(struct tty *, enum tty_code_code, const void *,
2176 	    const void *);
2177 void	tty_puts(struct tty *, const char *);
2178 void	tty_putc(struct tty *, u_char);
2179 void	tty_putn(struct tty *, const void *, size_t, u_int);
2180 void	tty_cell(struct tty *, const struct grid_cell *,
2181 	    const struct grid_cell *, struct colour_palette *);
2182 int	tty_init(struct tty *, struct client *);
2183 void	tty_resize(struct tty *);
2184 void	tty_set_size(struct tty *, u_int, u_int, u_int, u_int);
2185 void	tty_start_tty(struct tty *);
2186 void	tty_send_requests(struct tty *);
2187 void	tty_stop_tty(struct tty *);
2188 void	tty_set_title(struct tty *, const char *);
2189 void	tty_update_mode(struct tty *, int, struct screen *);
2190 void	tty_draw_line(struct tty *, struct screen *, u_int, u_int, u_int,
2191 	    u_int, u_int, const struct grid_cell *, struct colour_palette *);
2192 void	tty_sync_start(struct tty *);
2193 void	tty_sync_end(struct tty *);
2194 int	tty_open(struct tty *, char **);
2195 void	tty_close(struct tty *);
2196 void	tty_free(struct tty *);
2197 void	tty_update_features(struct tty *);
2198 void	tty_set_selection(struct tty *, const char *, size_t);
2199 void	tty_write(void (*)(struct tty *, const struct tty_ctx *),
2200 	    struct tty_ctx *);
2201 void	tty_cmd_alignmenttest(struct tty *, const struct tty_ctx *);
2202 void	tty_cmd_cell(struct tty *, const struct tty_ctx *);
2203 void	tty_cmd_cells(struct tty *, const struct tty_ctx *);
2204 void	tty_cmd_clearendofline(struct tty *, const struct tty_ctx *);
2205 void	tty_cmd_clearendofscreen(struct tty *, const struct tty_ctx *);
2206 void	tty_cmd_clearline(struct tty *, const struct tty_ctx *);
2207 void	tty_cmd_clearscreen(struct tty *, const struct tty_ctx *);
2208 void	tty_cmd_clearstartofline(struct tty *, const struct tty_ctx *);
2209 void	tty_cmd_clearstartofscreen(struct tty *, const struct tty_ctx *);
2210 void	tty_cmd_deletecharacter(struct tty *, const struct tty_ctx *);
2211 void	tty_cmd_clearcharacter(struct tty *, const struct tty_ctx *);
2212 void	tty_cmd_deleteline(struct tty *, const struct tty_ctx *);
2213 void	tty_cmd_erasecharacter(struct tty *, const struct tty_ctx *);
2214 void	tty_cmd_insertcharacter(struct tty *, const struct tty_ctx *);
2215 void	tty_cmd_insertline(struct tty *, const struct tty_ctx *);
2216 void	tty_cmd_linefeed(struct tty *, const struct tty_ctx *);
2217 void	tty_cmd_scrollup(struct tty *, const struct tty_ctx *);
2218 void	tty_cmd_scrolldown(struct tty *, const struct tty_ctx *);
2219 void	tty_cmd_reverseindex(struct tty *, const struct tty_ctx *);
2220 void	tty_cmd_setselection(struct tty *, const struct tty_ctx *);
2221 void	tty_cmd_rawstring(struct tty *, const struct tty_ctx *);
2222 void	tty_cmd_syncstart(struct tty *, const struct tty_ctx *);
2223 void	tty_default_colours(struct grid_cell *, struct window_pane *);
2224 
2225 /* tty-term.c */
2226 extern struct tty_terms tty_terms;
2227 u_int		 tty_term_ncodes(void);
2228 void		 tty_term_apply(struct tty_term *, const char *, int);
2229 void		 tty_term_apply_overrides(struct tty_term *);
2230 struct tty_term *tty_term_create(struct tty *, char *, char **, u_int, int *,
2231 		     char **);
2232 void		 tty_term_free(struct tty_term *);
2233 int		 tty_term_read_list(const char *, int, char ***, u_int *,
2234 		     char **);
2235 void		 tty_term_free_list(char **, u_int);
2236 int		 tty_term_has(struct tty_term *, enum tty_code_code);
2237 const char	*tty_term_string(struct tty_term *, enum tty_code_code);
2238 const char	*tty_term_string1(struct tty_term *, enum tty_code_code, int);
2239 const char	*tty_term_string2(struct tty_term *, enum tty_code_code, int,
2240 		     int);
2241 const char	*tty_term_string3(struct tty_term *, enum tty_code_code, int,
2242 		     int, int);
2243 const char	*tty_term_ptr1(struct tty_term *, enum tty_code_code,
2244 		     const void *);
2245 const char	*tty_term_ptr2(struct tty_term *, enum tty_code_code,
2246 		     const void *, const void *);
2247 int		 tty_term_number(struct tty_term *, enum tty_code_code);
2248 int		 tty_term_flag(struct tty_term *, enum tty_code_code);
2249 const char	*tty_term_describe(struct tty_term *, enum tty_code_code);
2250 
2251 /* tty-features.c */
2252 void		 tty_add_features(int *, const char *, const char *);
2253 const char	*tty_get_features(int);
2254 int		 tty_apply_features(struct tty_term *, int);
2255 void		 tty_default_features(int *, const char *, u_int);
2256 
2257 /* tty-acs.c */
2258 int		 tty_acs_needed(struct tty *);
2259 const char	*tty_acs_get(struct tty *, u_char);
2260 int		 tty_acs_reverse_get(struct tty *, const char *, size_t);
2261 const struct utf8_data *tty_acs_double_borders(int);
2262 const struct utf8_data *tty_acs_heavy_borders(int);
2263 const struct utf8_data *tty_acs_rounded_borders(int);
2264 
2265 /* tty-keys.c */
2266 void		tty_keys_build(struct tty *);
2267 void		tty_keys_free(struct tty *);
2268 int		tty_keys_next(struct tty *);
2269 
2270 /* arguments.c */
2271 void		 args_set(struct args *, u_char, struct args_value *);
2272 struct args 	*args_create(void);
2273 struct args	*args_parse(const struct args_parse *, struct args_value *,
2274 		     u_int, char **);
2275 struct args	*args_copy(struct args *, int, char **);
2276 void		 args_to_vector(struct args *, int *, char ***);
2277 struct args_value *args_from_vector(int, char **);
2278 void		 args_free_value(struct args_value *);
2279 void		 args_free_values(struct args_value *, u_int);
2280 void		 args_free(struct args *);
2281 char		*args_print(struct args *);
2282 char		*args_escape(const char *);
2283 int		 args_has(struct args *, u_char);
2284 const char	*args_get(struct args *, u_char);
2285 u_char		 args_first(struct args *, struct args_entry **);
2286 u_char		 args_next(struct args_entry **);
2287 u_int		 args_count(struct args *);
2288 struct args_value *args_values(struct args *);
2289 struct args_value *args_value(struct args *, u_int);
2290 const char	*args_string(struct args *, u_int);
2291 struct cmd_list	*args_make_commands_now(struct cmd *, struct cmdq_item *,
2292 		     u_int, int);
2293 struct args_command_state *args_make_commands_prepare(struct cmd *,
2294 		     struct cmdq_item *, u_int, const char *, int, int);
2295 struct cmd_list *args_make_commands(struct args_command_state *, int, char **,
2296 		     char **);
2297 void		 args_make_commands_free(struct args_command_state *);
2298 char		*args_make_commands_get_command(struct args_command_state *);
2299 struct args_value *args_first_value(struct args *, u_char);
2300 struct args_value *args_next_value(struct args_value *);
2301 long long	 args_strtonum(struct args *, u_char, long long, long long,
2302 		     char **);
2303 long long	 args_percentage(struct args *, u_char, long long,
2304 		     long long, long long, char **);
2305 long long	 args_string_percentage(const char *, long long, long long,
2306 		     long long, char **);
2307 
2308 /* cmd-find.c */
2309 int		 cmd_find_target(struct cmd_find_state *, struct cmdq_item *,
2310 		     const char *, enum cmd_find_type, int);
2311 struct client	*cmd_find_best_client(struct session *);
2312 struct client	*cmd_find_client(struct cmdq_item *, const char *, int);
2313 void		 cmd_find_clear_state(struct cmd_find_state *, int);
2314 int		 cmd_find_empty_state(struct cmd_find_state *);
2315 int		 cmd_find_valid_state(struct cmd_find_state *);
2316 void		 cmd_find_copy_state(struct cmd_find_state *,
2317 		     struct cmd_find_state *);
2318 void		 cmd_find_from_session(struct cmd_find_state *,
2319 		     struct session *, int);
2320 void		 cmd_find_from_winlink(struct cmd_find_state *,
2321 		     struct winlink *, int);
2322 int		 cmd_find_from_session_window(struct cmd_find_state *,
2323 		     struct session *, struct window *, int);
2324 int		 cmd_find_from_window(struct cmd_find_state *, struct window *,
2325 		     int);
2326 void		 cmd_find_from_winlink_pane(struct cmd_find_state *,
2327 		     struct winlink *, struct window_pane *, int);
2328 int		 cmd_find_from_pane(struct cmd_find_state *,
2329 		     struct window_pane *, int);
2330 int		 cmd_find_from_client(struct cmd_find_state *, struct client *,
2331 		     int);
2332 int		 cmd_find_from_mouse(struct cmd_find_state *,
2333 		     struct mouse_event *, int);
2334 int		 cmd_find_from_nothing(struct cmd_find_state *, int);
2335 
2336 /* cmd.c */
2337 extern const struct cmd_entry *cmd_table[];
2338 void printflike(3, 4) cmd_log_argv(int, char **, const char *, ...);
2339 void		 cmd_prepend_argv(int *, char ***, const char *);
2340 void		 cmd_append_argv(int *, char ***, const char *);
2341 int		 cmd_pack_argv(int, char **, char *, size_t);
2342 int		 cmd_unpack_argv(char *, size_t, int, char ***);
2343 char	       **cmd_copy_argv(int, char **);
2344 void		 cmd_free_argv(int, char **);
2345 char		*cmd_stringify_argv(int, char **);
2346 char		*cmd_get_alias(const char *);
2347 const struct cmd_entry *cmd_get_entry(struct cmd *);
2348 struct args	*cmd_get_args(struct cmd *);
2349 u_int		 cmd_get_group(struct cmd *);
2350 void		 cmd_get_source(struct cmd *, const char **, u_int *);
2351 struct cmd	*cmd_parse(struct args_value *, u_int, const char *, u_int,
2352 		     char **);
2353 struct cmd	*cmd_copy(struct cmd *, int, char **);
2354 void		 cmd_free(struct cmd *);
2355 char		*cmd_print(struct cmd *);
2356 struct cmd_list	*cmd_list_new(void);
2357 struct cmd_list	*cmd_list_copy(struct cmd_list *, int, char **);
2358 void		 cmd_list_append(struct cmd_list *, struct cmd *);
2359 void		 cmd_list_append_all(struct cmd_list *, struct cmd_list *);
2360 void		 cmd_list_move(struct cmd_list *, struct cmd_list *);
2361 void		 cmd_list_free(struct cmd_list *);
2362 char		*cmd_list_print(struct cmd_list *, int);
2363 struct cmd	*cmd_list_first(struct cmd_list *);
2364 struct cmd	*cmd_list_next(struct cmd *);
2365 int		 cmd_list_all_have(struct cmd_list *, int);
2366 int		 cmd_list_any_have(struct cmd_list *, int);
2367 int		 cmd_mouse_at(struct window_pane *, struct mouse_event *,
2368 		     u_int *, u_int *, int);
2369 struct winlink	*cmd_mouse_window(struct mouse_event *, struct session **);
2370 struct window_pane *cmd_mouse_pane(struct mouse_event *, struct session **,
2371 		     struct winlink **);
2372 char		*cmd_template_replace(const char *, const char *, int);
2373 
2374 /* cmd-attach-session.c */
2375 enum cmd_retval	 cmd_attach_session(struct cmdq_item *, const char *, int, int,
2376 		     int, const char *, int, const char *);
2377 
2378 /* cmd-parse.c */
2379 void		 cmd_parse_empty(struct cmd_parse_input *);
2380 struct cmd_parse_result *cmd_parse_from_file(FILE *, struct cmd_parse_input *);
2381 struct cmd_parse_result *cmd_parse_from_string(const char *,
2382 		     struct cmd_parse_input *);
2383 enum cmd_parse_status cmd_parse_and_insert(const char *,
2384 		     struct cmd_parse_input *, struct cmdq_item *,
2385 		     struct cmdq_state *, char **);
2386 enum cmd_parse_status cmd_parse_and_append(const char *,
2387 		     struct cmd_parse_input *, struct client *,
2388 		     struct cmdq_state *, char **);
2389 struct cmd_parse_result *cmd_parse_from_buffer(const void *, size_t,
2390 		     struct cmd_parse_input *);
2391 struct cmd_parse_result *cmd_parse_from_arguments(struct args_value *, u_int,
2392 		     struct cmd_parse_input *);
2393 
2394 /* cmd-queue.c */
2395 struct cmdq_state *cmdq_new_state(struct cmd_find_state *, struct key_event *,
2396 		     int);
2397 struct cmdq_state *cmdq_link_state(struct cmdq_state *);
2398 struct cmdq_state *cmdq_copy_state(struct cmdq_state *);
2399 void		  cmdq_free_state(struct cmdq_state *);
2400 void printflike(3, 4) cmdq_add_format(struct cmdq_state *, const char *,
2401 		     const char *, ...);
2402 void		  cmdq_add_formats(struct cmdq_state *, struct format_tree *);
2403 void		  cmdq_merge_formats(struct cmdq_item *, struct format_tree *);
2404 struct cmdq_list *cmdq_new(void);
2405 void cmdq_free(struct cmdq_list *);
2406 const char	 *cmdq_get_name(struct cmdq_item *);
2407 struct client	 *cmdq_get_client(struct cmdq_item *);
2408 struct client	 *cmdq_get_target_client(struct cmdq_item *);
2409 struct cmdq_state *cmdq_get_state(struct cmdq_item *);
2410 struct cmd_find_state *cmdq_get_target(struct cmdq_item *);
2411 struct cmd_find_state *cmdq_get_source(struct cmdq_item *);
2412 struct key_event *cmdq_get_event(struct cmdq_item *);
2413 struct cmd_find_state *cmdq_get_current(struct cmdq_item *);
2414 int		  cmdq_get_flags(struct cmdq_item *);
2415 struct cmdq_item *cmdq_get_command(struct cmd_list *, struct cmdq_state *);
2416 #define cmdq_get_callback(cb, data) cmdq_get_callback1(#cb, cb, data)
2417 struct cmdq_item *cmdq_get_callback1(const char *, cmdq_cb, void *);
2418 struct cmdq_item *cmdq_get_error(const char *);
2419 struct cmdq_item *cmdq_insert_after(struct cmdq_item *, struct cmdq_item *);
2420 struct cmdq_item *cmdq_append(struct client *, struct cmdq_item *);
2421 void printflike(4, 5) cmdq_insert_hook(struct session *, struct cmdq_item *,
2422 		     struct cmd_find_state *, const char *, ...);
2423 void		 cmdq_continue(struct cmdq_item *);
2424 u_int		 cmdq_next(struct client *);
2425 struct cmdq_item *cmdq_running(struct client *);
2426 void		 cmdq_guard(struct cmdq_item *, const char *, int);
2427 void printflike(2, 3) cmdq_print(struct cmdq_item *, const char *, ...);
2428 void printflike(2, 3) cmdq_error(struct cmdq_item *, const char *, ...);
2429 
2430 /* cmd-wait-for.c */
2431 void	cmd_wait_for_flush(void);
2432 
2433 /* client.c */
2434 int	client_main(struct event_base *, int, char **, uint64_t, int);
2435 
2436 /* key-bindings.c */
2437 struct key_table *key_bindings_get_table(const char *, int);
2438 struct key_table *key_bindings_first_table(void);
2439 struct key_table *key_bindings_next_table(struct key_table *);
2440 void	 key_bindings_unref_table(struct key_table *);
2441 struct key_binding *key_bindings_get(struct key_table *, key_code);
2442 struct key_binding *key_bindings_get_default(struct key_table *, key_code);
2443 struct key_binding *key_bindings_first(struct key_table *);
2444 struct key_binding *key_bindings_next(struct key_table *, struct key_binding *);
2445 void	 key_bindings_add(const char *, key_code, const char *, int,
2446 	     struct cmd_list *);
2447 void	 key_bindings_remove(const char *, key_code);
2448 void	 key_bindings_reset(const char *, key_code);
2449 void	 key_bindings_remove_table(const char *);
2450 void	 key_bindings_reset_table(const char *);
2451 void	 key_bindings_init(void);
2452 struct cmdq_item *key_bindings_dispatch(struct key_binding *,
2453 	     struct cmdq_item *, struct client *, struct key_event *,
2454 	     struct cmd_find_state *);
2455 
2456 /* key-string.c */
2457 key_code	 key_string_lookup_string(const char *);
2458 const char	*key_string_lookup_key(key_code, int);
2459 
2460 /* alerts.c */
2461 void	alerts_reset_all(void);
2462 void	alerts_queue(struct window *, int);
2463 void	alerts_check_session(struct session *);
2464 
2465 /* file.c */
2466 int	 file_cmp(struct client_file *, struct client_file *);
2467 RB_PROTOTYPE(client_files, client_file, entry, file_cmp);
2468 struct client_file *file_create_with_peer(struct tmuxpeer *,
2469 	    struct client_files *, int, client_file_cb, void *);
2470 struct client_file *file_create_with_client(struct client *, int,
2471 	    client_file_cb, void *);
2472 void	 file_free(struct client_file *);
2473 void	 file_fire_done(struct client_file *);
2474 void	 file_fire_read(struct client_file *);
2475 int	 file_can_print(struct client *);
2476 void printflike(2, 3) file_print(struct client *, const char *, ...);
2477 void printflike(2, 0) file_vprint(struct client *, const char *, va_list);
2478 void	 file_print_buffer(struct client *, void *, size_t);
2479 void printflike(2, 3) file_error(struct client *, const char *, ...);
2480 void	 file_write(struct client *, const char *, int, const void *, size_t,
2481 	     client_file_cb, void *);
2482 void	 file_read(struct client *, const char *, client_file_cb, void *);
2483 void	 file_push(struct client_file *);
2484 int	 file_write_left(struct client_files *);
2485 void	 file_write_open(struct client_files *, struct tmuxpeer *,
2486 	     struct imsg *, int, int, client_file_cb, void *);
2487 void	 file_write_data(struct client_files *, struct imsg *);
2488 void	 file_write_close(struct client_files *, struct imsg *);
2489 void	 file_read_open(struct client_files *, struct tmuxpeer *, struct imsg *,
2490 	     int, int, client_file_cb, void *);
2491 void	 file_write_ready(struct client_files *, struct imsg *);
2492 void	 file_read_data(struct client_files *, struct imsg *);
2493 void	 file_read_done(struct client_files *, struct imsg *);
2494 
2495 /* server.c */
2496 extern struct tmuxproc *server_proc;
2497 extern struct clients clients;
2498 extern struct cmd_find_state marked_pane;
2499 extern struct message_list message_log;
2500 void	 server_set_marked(struct session *, struct winlink *,
2501 	     struct window_pane *);
2502 void	 server_clear_marked(void);
2503 int	 server_is_marked(struct session *, struct winlink *,
2504 	     struct window_pane *);
2505 int	 server_check_marked(void);
2506 int	 server_start(struct tmuxproc *, int, struct event_base *, int, char *);
2507 void	 server_update_socket(void);
2508 void	 server_add_accept(int);
2509 void printflike(1, 2) server_add_message(const char *, ...);
2510 
2511 /* server-client.c */
2512 RB_PROTOTYPE(client_windows, client_window, entry, server_client_window_cmp);
2513 u_int	 server_client_how_many(void);
2514 void	 server_client_set_overlay(struct client *, u_int, overlay_check_cb,
2515 	     overlay_mode_cb, overlay_draw_cb, overlay_key_cb,
2516 	     overlay_free_cb, overlay_resize_cb, void *);
2517 void	 server_client_clear_overlay(struct client *);
2518 void	 server_client_overlay_range(u_int, u_int, u_int, u_int, u_int, u_int,
2519 	     u_int, struct overlay_ranges *);
2520 void	 server_client_set_key_table(struct client *, const char *);
2521 const char *server_client_get_key_table(struct client *);
2522 int	 server_client_check_nested(struct client *);
2523 int	 server_client_handle_key(struct client *, struct key_event *);
2524 struct client *server_client_create(int);
2525 int	 server_client_open(struct client *, char **);
2526 void	 server_client_unref(struct client *);
2527 void	 server_client_set_session(struct client *, struct session *);
2528 void	 server_client_lost(struct client *);
2529 void	 server_client_suspend(struct client *);
2530 void	 server_client_detach(struct client *, enum msgtype);
2531 void	 server_client_exec(struct client *, const char *);
2532 void	 server_client_loop(void);
2533 void	 server_client_push_stdout(struct client *);
2534 void	 server_client_push_stderr(struct client *);
2535 const char *server_client_get_cwd(struct client *, struct session *);
2536 void	 server_client_set_flags(struct client *, const char *);
2537 const char *server_client_get_flags(struct client *);
2538 struct client_window *server_client_get_client_window(struct client *, u_int);
2539 struct client_window *server_client_add_client_window(struct client *, u_int);
2540 struct window_pane *server_client_get_pane(struct client *);
2541 void	 server_client_set_pane(struct client *, struct window_pane *);
2542 void	 server_client_remove_pane(struct window_pane *);
2543 
2544 /* server-fn.c */
2545 void	 server_redraw_client(struct client *);
2546 void	 server_status_client(struct client *);
2547 void	 server_redraw_session(struct session *);
2548 void	 server_redraw_session_group(struct session *);
2549 void	 server_status_session(struct session *);
2550 void	 server_status_session_group(struct session *);
2551 void	 server_redraw_window(struct window *);
2552 void	 server_redraw_window_borders(struct window *);
2553 void	 server_status_window(struct window *);
2554 void	 server_lock(void);
2555 void	 server_lock_session(struct session *);
2556 void	 server_lock_client(struct client *);
2557 void	 server_kill_pane(struct window_pane *);
2558 void	 server_kill_window(struct window *, int);
2559 void	 server_renumber_session(struct session *);
2560 void	 server_renumber_all(void);
2561 int	 server_link_window(struct session *,
2562 	     struct winlink *, struct session *, int, int, int, char **);
2563 void	 server_unlink_window(struct session *, struct winlink *);
2564 void	 server_destroy_pane(struct window_pane *, int);
2565 void	 server_destroy_session(struct session *);
2566 void	 server_check_unattached(void);
2567 void	 server_unzoom_window(struct window *);
2568 
2569 /* status.c */
2570 extern char	**status_prompt_hlist[];
2571 extern u_int	  status_prompt_hsize[];
2572 void	 status_timer_start(struct client *);
2573 void	 status_timer_start_all(void);
2574 void	 status_update_cache(struct session *);
2575 int	 status_at_line(struct client *);
2576 u_int	 status_line_size(struct client *);
2577 struct style_range *status_get_range(struct client *, u_int, u_int);
2578 void	 status_init(struct client *);
2579 void	 status_free(struct client *);
2580 int	 status_redraw(struct client *);
2581 void printflike(5, 6) status_message_set(struct client *, int, int, int,
2582 	     const char *, ...);
2583 void	 status_message_clear(struct client *);
2584 int	 status_message_redraw(struct client *);
2585 void	 status_prompt_set(struct client *, struct cmd_find_state *,
2586 	     const char *, const char *, prompt_input_cb, prompt_free_cb,
2587 	     void *, int, enum prompt_type);
2588 void	 status_prompt_clear(struct client *);
2589 int	 status_prompt_redraw(struct client *);
2590 int	 status_prompt_key(struct client *, key_code);
2591 void	 status_prompt_update(struct client *, const char *, const char *);
2592 void	 status_prompt_load_history(void);
2593 void	 status_prompt_save_history(void);
2594 const char *status_prompt_type_string(u_int);
2595 enum prompt_type status_prompt_type(const char *type);
2596 
2597 /* resize.c */
2598 void	 resize_window(struct window *, u_int, u_int, int, int);
2599 void	 default_window_size(struct client *, struct session *, struct window *,
2600 	     u_int *, u_int *, u_int *, u_int *, int);
2601 void	 recalculate_size(struct window *, int);
2602 void	 recalculate_sizes(void);
2603 void	 recalculate_sizes_now(int);
2604 
2605 /* input.c */
2606 struct input_ctx *input_init(struct window_pane *, struct bufferevent *,
2607 	     struct colour_palette *);
2608 void	 input_free(struct input_ctx *);
2609 void	 input_reset(struct input_ctx *, int);
2610 struct evbuffer *input_pending(struct input_ctx *);
2611 void	 input_parse_pane(struct window_pane *);
2612 void	 input_parse_buffer(struct window_pane *, u_char *, size_t);
2613 void	 input_parse_screen(struct input_ctx *, struct screen *,
2614 	     screen_write_init_ctx_cb, void *, u_char *, size_t);
2615 
2616 /* input-key.c */
2617 void	 input_key_build(void);
2618 int	 input_key_pane(struct window_pane *, key_code, struct mouse_event *);
2619 int	 input_key(struct screen *, struct bufferevent *, key_code);
2620 int	 input_key_get_mouse(struct screen *, struct mouse_event *, u_int,
2621 	     u_int, const char **, size_t *);
2622 
2623 /* colour.c */
2624 int	 colour_find_rgb(u_char, u_char, u_char);
2625 int	 colour_join_rgb(u_char, u_char, u_char);
2626 void	 colour_split_rgb(int, u_char *, u_char *, u_char *);
2627 int	 colour_force_rgb(int);
2628 const char *colour_tostring(int);
2629 int	 colour_fromstring(const char *s);
2630 int	 colour_256toRGB(int);
2631 int	 colour_256to16(int);
2632 int	 colour_byname(const char *);
2633 void	 colour_palette_init(struct colour_palette *);
2634 void	 colour_palette_clear(struct colour_palette *);
2635 void	 colour_palette_free(struct colour_palette *);
2636 int	 colour_palette_get(struct colour_palette *, int);
2637 int	 colour_palette_set(struct colour_palette *, int, int);
2638 void	 colour_palette_from_option(struct colour_palette *, struct options *);
2639 
2640 /* attributes.c */
2641 const char *attributes_tostring(int);
2642 int	 attributes_fromstring(const char *);
2643 
2644 /* grid.c */
2645 extern const struct grid_cell grid_default_cell;
2646 void	 grid_empty_line(struct grid *, u_int, u_int);
2647 int	 grid_cells_equal(const struct grid_cell *, const struct grid_cell *);
2648 int	 grid_cells_look_equal(const struct grid_cell *,
2649 	     const struct grid_cell *);
2650 struct grid *grid_create(u_int, u_int, u_int);
2651 void	 grid_destroy(struct grid *);
2652 int	 grid_compare(struct grid *, struct grid *);
2653 void	 grid_collect_history(struct grid *);
2654 void	 grid_remove_history(struct grid *, u_int );
2655 void	 grid_scroll_history(struct grid *, u_int);
2656 void	 grid_scroll_history_region(struct grid *, u_int, u_int, u_int);
2657 void	 grid_clear_history(struct grid *);
2658 const struct grid_line *grid_peek_line(struct grid *, u_int);
2659 void	 grid_get_cell(struct grid *, u_int, u_int, struct grid_cell *);
2660 void	 grid_set_cell(struct grid *, u_int, u_int, const struct grid_cell *);
2661 void	 grid_set_padding(struct grid *, u_int, u_int);
2662 void	 grid_set_cells(struct grid *, u_int, u_int, const struct grid_cell *,
2663 	     const char *, size_t);
2664 struct grid_line *grid_get_line(struct grid *, u_int);
2665 void	 grid_adjust_lines(struct grid *, u_int);
2666 void	 grid_clear(struct grid *, u_int, u_int, u_int, u_int, u_int);
2667 void	 grid_clear_lines(struct grid *, u_int, u_int, u_int);
2668 void	 grid_move_lines(struct grid *, u_int, u_int, u_int, u_int);
2669 void	 grid_move_cells(struct grid *, u_int, u_int, u_int, u_int, u_int);
2670 char	*grid_string_cells(struct grid *, u_int, u_int, u_int,
2671 	     struct grid_cell **, int, int, int);
2672 void	 grid_duplicate_lines(struct grid *, u_int, struct grid *, u_int,
2673 	     u_int);
2674 void	 grid_reflow(struct grid *, u_int);
2675 void	 grid_wrap_position(struct grid *, u_int, u_int, u_int *, u_int *);
2676 void	 grid_unwrap_position(struct grid *, u_int *, u_int *, u_int, u_int);
2677 u_int	 grid_line_length(struct grid *, u_int);
2678 
2679 /* grid-reader.c */
2680 void	 grid_reader_start(struct grid_reader *, struct grid *, u_int, u_int);
2681 void	 grid_reader_get_cursor(struct grid_reader *, u_int *, u_int *);
2682 u_int	 grid_reader_line_length(struct grid_reader *);
2683 int	 grid_reader_in_set(struct grid_reader *, const char *);
2684 void	 grid_reader_cursor_right(struct grid_reader *, int, int);
2685 void	 grid_reader_cursor_left(struct grid_reader *, int);
2686 void	 grid_reader_cursor_down(struct grid_reader *);
2687 void	 grid_reader_cursor_up(struct grid_reader *);
2688 void	 grid_reader_cursor_start_of_line(struct grid_reader *, int);
2689 void	 grid_reader_cursor_end_of_line(struct grid_reader *, int, int);
2690 void	 grid_reader_cursor_next_word(struct grid_reader *, const char *);
2691 void	 grid_reader_cursor_next_word_end(struct grid_reader *, const char *);
2692 void	 grid_reader_cursor_previous_word(struct grid_reader *, const char *,
2693 	     int, int);
2694 int	 grid_reader_cursor_jump(struct grid_reader *,
2695 	     const struct utf8_data *);
2696 int	 grid_reader_cursor_jump_back(struct grid_reader *,
2697 	     const struct utf8_data *);
2698 void	 grid_reader_cursor_back_to_indentation(struct grid_reader *);
2699 
2700 /* grid-view.c */
2701 void	 grid_view_get_cell(struct grid *, u_int, u_int, struct grid_cell *);
2702 void	 grid_view_set_cell(struct grid *, u_int, u_int,
2703 	     const struct grid_cell *);
2704 void	 grid_view_set_padding(struct grid *, u_int, u_int);
2705 void	 grid_view_set_cells(struct grid *, u_int, u_int,
2706 	     const struct grid_cell *, const char *, size_t);
2707 void	 grid_view_clear_history(struct grid *, u_int);
2708 void	 grid_view_clear(struct grid *, u_int, u_int, u_int, u_int, u_int);
2709 void	 grid_view_scroll_region_up(struct grid *, u_int, u_int, u_int);
2710 void	 grid_view_scroll_region_down(struct grid *, u_int, u_int, u_int);
2711 void	 grid_view_insert_lines(struct grid *, u_int, u_int, u_int);
2712 void	 grid_view_insert_lines_region(struct grid *, u_int, u_int, u_int,
2713 	     u_int);
2714 void	 grid_view_delete_lines(struct grid *, u_int, u_int, u_int);
2715 void	 grid_view_delete_lines_region(struct grid *, u_int, u_int, u_int,
2716 	     u_int);
2717 void	 grid_view_insert_cells(struct grid *, u_int, u_int, u_int, u_int);
2718 void	 grid_view_delete_cells(struct grid *, u_int, u_int, u_int, u_int);
2719 char	*grid_view_string_cells(struct grid *, u_int, u_int, u_int);
2720 
2721 /* screen-write.c */
2722 void	 screen_write_make_list(struct screen *);
2723 void	 screen_write_free_list(struct screen *);
2724 void	 screen_write_start_pane(struct screen_write_ctx *,
2725 	     struct window_pane *, struct screen *);
2726 void	 screen_write_start(struct screen_write_ctx *, struct screen *);
2727 void	 screen_write_start_callback(struct screen_write_ctx *, struct screen *,
2728 	     screen_write_init_ctx_cb, void *);
2729 void	 screen_write_stop(struct screen_write_ctx *);
2730 void	 screen_write_reset(struct screen_write_ctx *);
2731 size_t printflike(1, 2) screen_write_strlen(const char *, ...);
2732 int printflike(7, 8) screen_write_text(struct screen_write_ctx *, u_int, u_int,
2733 	     u_int, int, const struct grid_cell *, const char *, ...);
2734 void printflike(3, 4) screen_write_puts(struct screen_write_ctx *,
2735 	     const struct grid_cell *, const char *, ...);
2736 void printflike(4, 5) screen_write_nputs(struct screen_write_ctx *,
2737 	     ssize_t, const struct grid_cell *, const char *, ...);
2738 void printflike(4, 0) screen_write_vnputs(struct screen_write_ctx *, ssize_t,
2739 	     const struct grid_cell *, const char *, va_list);
2740 void	 screen_write_putc(struct screen_write_ctx *, const struct grid_cell *,
2741 	     u_char);
2742 void	 screen_write_fast_copy(struct screen_write_ctx *, struct screen *,
2743 	     u_int, u_int, u_int, u_int);
2744 void	 screen_write_hline(struct screen_write_ctx *, u_int, int, int);
2745 void	 screen_write_vline(struct screen_write_ctx *, u_int, int, int);
2746 void	 screen_write_menu(struct screen_write_ctx *, struct menu *, int,
2747 	     const struct grid_cell *);
2748 void	 screen_write_box(struct screen_write_ctx *, u_int, u_int, int,
2749 	     const struct grid_cell *, const char *);
2750 void	 screen_write_preview(struct screen_write_ctx *, struct screen *, u_int,
2751 	     u_int);
2752 void	 screen_write_backspace(struct screen_write_ctx *);
2753 void	 screen_write_mode_set(struct screen_write_ctx *, int);
2754 void	 screen_write_mode_clear(struct screen_write_ctx *, int);
2755 void	 screen_write_cursorup(struct screen_write_ctx *, u_int);
2756 void	 screen_write_cursordown(struct screen_write_ctx *, u_int);
2757 void	 screen_write_cursorright(struct screen_write_ctx *, u_int);
2758 void	 screen_write_cursorleft(struct screen_write_ctx *, u_int);
2759 void	 screen_write_alignmenttest(struct screen_write_ctx *);
2760 void	 screen_write_insertcharacter(struct screen_write_ctx *, u_int, u_int);
2761 void	 screen_write_deletecharacter(struct screen_write_ctx *, u_int, u_int);
2762 void	 screen_write_clearcharacter(struct screen_write_ctx *, u_int, u_int);
2763 void	 screen_write_insertline(struct screen_write_ctx *, u_int, u_int);
2764 void	 screen_write_deleteline(struct screen_write_ctx *, u_int, u_int);
2765 void	 screen_write_clearline(struct screen_write_ctx *, u_int);
2766 void	 screen_write_clearendofline(struct screen_write_ctx *, u_int);
2767 void	 screen_write_clearstartofline(struct screen_write_ctx *, u_int);
2768 void	 screen_write_cursormove(struct screen_write_ctx *, int, int, int);
2769 void	 screen_write_reverseindex(struct screen_write_ctx *, u_int);
2770 void	 screen_write_scrollregion(struct screen_write_ctx *, u_int, u_int);
2771 void	 screen_write_linefeed(struct screen_write_ctx *, int, u_int);
2772 void	 screen_write_scrollup(struct screen_write_ctx *, u_int, u_int);
2773 void	 screen_write_scrolldown(struct screen_write_ctx *, u_int, u_int);
2774 void	 screen_write_carriagereturn(struct screen_write_ctx *);
2775 void	 screen_write_clearendofscreen(struct screen_write_ctx *, u_int);
2776 void	 screen_write_clearstartofscreen(struct screen_write_ctx *, u_int);
2777 void	 screen_write_clearscreen(struct screen_write_ctx *, u_int);
2778 void	 screen_write_clearhistory(struct screen_write_ctx *);
2779 void	 screen_write_fullredraw(struct screen_write_ctx *);
2780 void	 screen_write_collect_end(struct screen_write_ctx *);
2781 void	 screen_write_collect_add(struct screen_write_ctx *,
2782 	     const struct grid_cell *);
2783 void	 screen_write_cell(struct screen_write_ctx *, const struct grid_cell *);
2784 void	 screen_write_setselection(struct screen_write_ctx *, u_char *, u_int);
2785 void	 screen_write_rawstring(struct screen_write_ctx *, u_char *, u_int);
2786 void	 screen_write_alternateon(struct screen_write_ctx *,
2787 	     struct grid_cell *, int);
2788 void	 screen_write_alternateoff(struct screen_write_ctx *,
2789 	     struct grid_cell *, int);
2790 
2791 /* screen-redraw.c */
2792 void	 screen_redraw_screen(struct client *);
2793 void	 screen_redraw_pane(struct client *, struct window_pane *);
2794 
2795 /* screen.c */
2796 void	 screen_init(struct screen *, u_int, u_int, u_int);
2797 void	 screen_reinit(struct screen *);
2798 void	 screen_free(struct screen *);
2799 void	 screen_reset_tabs(struct screen *);
2800 void	 screen_set_cursor_style(u_int, enum screen_cursor_style *, int *);
2801 void	 screen_set_cursor_colour(struct screen *, int);
2802 int	 screen_set_title(struct screen *, const char *);
2803 void	 screen_set_path(struct screen *, const char *);
2804 void	 screen_push_title(struct screen *);
2805 void	 screen_pop_title(struct screen *);
2806 void	 screen_resize(struct screen *, u_int, u_int, int);
2807 void	 screen_resize_cursor(struct screen *, u_int, u_int, int, int, int);
2808 void	 screen_set_selection(struct screen *, u_int, u_int, u_int, u_int,
2809 	     u_int, int, struct grid_cell *);
2810 void	 screen_clear_selection(struct screen *);
2811 void	 screen_hide_selection(struct screen *);
2812 int	 screen_check_selection(struct screen *, u_int, u_int);
2813 void	 screen_select_cell(struct screen *, struct grid_cell *,
2814 	     const struct grid_cell *);
2815 void	 screen_alternate_on(struct screen *, struct grid_cell *, int);
2816 void	 screen_alternate_off(struct screen *, struct grid_cell *, int);
2817 const char *screen_mode_to_string(int);
2818 
2819 /* window.c */
2820 extern struct windows windows;
2821 extern struct window_pane_tree all_window_panes;
2822 int		 window_cmp(struct window *, struct window *);
2823 RB_PROTOTYPE(windows, window, entry, window_cmp);
2824 int		 winlink_cmp(struct winlink *, struct winlink *);
2825 RB_PROTOTYPE(winlinks, winlink, entry, winlink_cmp);
2826 int		 window_pane_cmp(struct window_pane *, struct window_pane *);
2827 RB_PROTOTYPE(window_pane_tree, window_pane, tree_entry, window_pane_cmp);
2828 struct winlink	*winlink_find_by_index(struct winlinks *, int);
2829 struct winlink	*winlink_find_by_window(struct winlinks *, struct window *);
2830 struct winlink	*winlink_find_by_window_id(struct winlinks *, u_int);
2831 u_int		 winlink_count(struct winlinks *);
2832 struct winlink	*winlink_add(struct winlinks *, int);
2833 void		 winlink_set_window(struct winlink *, struct window *);
2834 void		 winlink_remove(struct winlinks *, struct winlink *);
2835 struct winlink	*winlink_next(struct winlink *);
2836 struct winlink	*winlink_previous(struct winlink *);
2837 struct winlink	*winlink_next_by_number(struct winlink *, struct session *,
2838 		     int);
2839 struct winlink	*winlink_previous_by_number(struct winlink *, struct session *,
2840 		     int);
2841 void		 winlink_stack_push(struct winlink_stack *, struct winlink *);
2842 void		 winlink_stack_remove(struct winlink_stack *, struct winlink *);
2843 struct window	*window_find_by_id_str(const char *);
2844 struct window	*window_find_by_id(u_int);
2845 void		 window_update_activity(struct window *);
2846 struct window	*window_create(u_int, u_int, u_int, u_int);
2847 void		 window_pane_set_event(struct window_pane *);
2848 struct window_pane *window_get_active_at(struct window *, u_int, u_int);
2849 struct window_pane *window_find_string(struct window *, const char *);
2850 int		 window_has_pane(struct window *, struct window_pane *);
2851 int		 window_set_active_pane(struct window *, struct window_pane *,
2852 		     int);
2853 void		 window_update_focus(struct window *);
2854 void		 window_pane_update_focus(struct window_pane *);
2855 void		 window_redraw_active_switch(struct window *,
2856 		     struct window_pane *);
2857 struct window_pane *window_add_pane(struct window *, struct window_pane *,
2858 		     u_int, int);
2859 void		 window_resize(struct window *, u_int, u_int, int, int);
2860 void		 window_pane_send_resize(struct window_pane *, u_int, u_int);
2861 int		 window_zoom(struct window_pane *);
2862 int		 window_unzoom(struct window *);
2863 int		 window_push_zoom(struct window *, int, int);
2864 int		 window_pop_zoom(struct window *);
2865 void		 window_lost_pane(struct window *, struct window_pane *);
2866 void		 window_remove_pane(struct window *, struct window_pane *);
2867 struct window_pane *window_pane_at_index(struct window *, u_int);
2868 struct window_pane *window_pane_next_by_number(struct window *,
2869 			struct window_pane *, u_int);
2870 struct window_pane *window_pane_previous_by_number(struct window *,
2871 			struct window_pane *, u_int);
2872 int		 window_pane_index(struct window_pane *, u_int *);
2873 u_int		 window_count_panes(struct window *);
2874 void		 window_destroy_panes(struct window *);
2875 struct window_pane *window_pane_find_by_id_str(const char *);
2876 struct window_pane *window_pane_find_by_id(u_int);
2877 int		 window_pane_destroy_ready(struct window_pane *);
2878 void		 window_pane_resize(struct window_pane *, u_int, u_int);
2879 int		 window_pane_set_mode(struct window_pane *,
2880 		     struct window_pane *, const struct window_mode *,
2881 		     struct cmd_find_state *, struct args *);
2882 void		 window_pane_reset_mode(struct window_pane *);
2883 void		 window_pane_reset_mode_all(struct window_pane *);
2884 int		 window_pane_key(struct window_pane *, struct client *,
2885 		     struct session *, struct winlink *, key_code,
2886 		     struct mouse_event *);
2887 int		 window_pane_visible(struct window_pane *);
2888 u_int		 window_pane_search(struct window_pane *, const char *, int,
2889 		     int);
2890 const char	*window_printable_flags(struct winlink *, int);
2891 struct window_pane *window_pane_find_up(struct window_pane *);
2892 struct window_pane *window_pane_find_down(struct window_pane *);
2893 struct window_pane *window_pane_find_left(struct window_pane *);
2894 struct window_pane *window_pane_find_right(struct window_pane *);
2895 void		 window_set_name(struct window *, const char *);
2896 void		 window_add_ref(struct window *, const char *);
2897 void		 window_remove_ref(struct window *, const char *);
2898 void		 winlink_clear_flags(struct winlink *);
2899 int		 winlink_shuffle_up(struct session *, struct winlink *, int);
2900 int		 window_pane_start_input(struct window_pane *,
2901 		     struct cmdq_item *, char **);
2902 void		*window_pane_get_new_data(struct window_pane *,
2903 		     struct window_pane_offset *, size_t *);
2904 void		 window_pane_update_used_data(struct window_pane *,
2905 		     struct window_pane_offset *, size_t);
2906 
2907 /* layout.c */
2908 u_int		 layout_count_cells(struct layout_cell *);
2909 struct layout_cell *layout_create_cell(struct layout_cell *);
2910 void		 layout_free_cell(struct layout_cell *);
2911 void		 layout_print_cell(struct layout_cell *, const char *, u_int);
2912 void		 layout_destroy_cell(struct window *, struct layout_cell *,
2913 		     struct layout_cell **);
2914 void		 layout_resize_layout(struct window *, struct layout_cell *,
2915 		     enum layout_type, int, int);
2916 struct layout_cell *layout_search_by_border(struct layout_cell *, u_int, u_int);
2917 void		 layout_set_size(struct layout_cell *, u_int, u_int, u_int,
2918 		     u_int);
2919 void		 layout_make_leaf(struct layout_cell *, struct window_pane *);
2920 void		 layout_make_node(struct layout_cell *, enum layout_type);
2921 void		 layout_fix_offsets(struct window *);
2922 void		 layout_fix_panes(struct window *, struct window_pane *);
2923 void		 layout_resize_adjust(struct window *, struct layout_cell *,
2924 		     enum layout_type, int);
2925 void		 layout_init(struct window *, struct window_pane *);
2926 void		 layout_free(struct window *);
2927 void		 layout_resize(struct window *, u_int, u_int);
2928 void		 layout_resize_pane(struct window_pane *, enum layout_type,
2929 		     int, int);
2930 void		 layout_resize_pane_to(struct window_pane *, enum layout_type,
2931 		     u_int);
2932 void		 layout_assign_pane(struct layout_cell *, struct window_pane *,
2933 		     int);
2934 struct layout_cell *layout_split_pane(struct window_pane *, enum layout_type,
2935 		     int, int);
2936 void		 layout_close_pane(struct window_pane *);
2937 int		 layout_spread_cell(struct window *, struct layout_cell *);
2938 void		 layout_spread_out(struct window_pane *);
2939 
2940 /* layout-custom.c */
2941 char		*layout_dump(struct layout_cell *);
2942 int		 layout_parse(struct window *, const char *);
2943 
2944 /* layout-set.c */
2945 int		 layout_set_lookup(const char *);
2946 u_int		 layout_set_select(struct window *, u_int);
2947 u_int		 layout_set_next(struct window *);
2948 u_int		 layout_set_previous(struct window *);
2949 
2950 /* mode-tree.c */
2951 typedef void (*mode_tree_build_cb)(void *, struct mode_tree_sort_criteria *,
2952 				   uint64_t *, const char *);
2953 typedef void (*mode_tree_draw_cb)(void *, void *, struct screen_write_ctx *,
2954 	     u_int, u_int);
2955 typedef int (*mode_tree_search_cb)(void *, void *, const char *);
2956 typedef void (*mode_tree_menu_cb)(void *, struct client *, key_code);
2957 typedef u_int (*mode_tree_height_cb)(void *, u_int);
2958 typedef key_code (*mode_tree_key_cb)(void *, void *, u_int);
2959 typedef void (*mode_tree_each_cb)(void *, void *, struct client *, key_code);
2960 u_int	 mode_tree_count_tagged(struct mode_tree_data *);
2961 void	*mode_tree_get_current(struct mode_tree_data *);
2962 const char *mode_tree_get_current_name(struct mode_tree_data *);
2963 void	 mode_tree_expand_current(struct mode_tree_data *);
2964 void	 mode_tree_collapse_current(struct mode_tree_data *);
2965 void	 mode_tree_expand(struct mode_tree_data *, uint64_t);
2966 int	 mode_tree_set_current(struct mode_tree_data *, uint64_t);
2967 void	 mode_tree_each_tagged(struct mode_tree_data *, mode_tree_each_cb,
2968 	     struct client *, key_code, int);
2969 void	 mode_tree_up(struct mode_tree_data *, int);
2970 void	 mode_tree_down(struct mode_tree_data *, int);
2971 struct mode_tree_data *mode_tree_start(struct window_pane *, struct args *,
2972 	     mode_tree_build_cb, mode_tree_draw_cb, mode_tree_search_cb,
2973 	     mode_tree_menu_cb, mode_tree_height_cb, mode_tree_key_cb, void *,
2974 	     const struct menu_item *, const char **, u_int, struct screen **);
2975 void	 mode_tree_zoom(struct mode_tree_data *, struct args *);
2976 void	 mode_tree_build(struct mode_tree_data *);
2977 void	 mode_tree_free(struct mode_tree_data *);
2978 void	 mode_tree_resize(struct mode_tree_data *, u_int, u_int);
2979 struct mode_tree_item *mode_tree_add(struct mode_tree_data *,
2980 	     struct mode_tree_item *, void *, uint64_t, const char *,
2981 	     const char *, int);
2982 void	 mode_tree_draw_as_parent(struct mode_tree_item *);
2983 void	 mode_tree_no_tag(struct mode_tree_item *);
2984 void	 mode_tree_remove(struct mode_tree_data *, struct mode_tree_item *);
2985 void	 mode_tree_draw(struct mode_tree_data *);
2986 int	 mode_tree_key(struct mode_tree_data *, struct client *, key_code *,
2987 	     struct mouse_event *, u_int *, u_int *);
2988 void	 mode_tree_run_command(struct client *, struct cmd_find_state *,
2989 	     const char *, const char *);
2990 
2991 /* window-buffer.c */
2992 extern const struct window_mode window_buffer_mode;
2993 
2994 /* window-tree.c */
2995 extern const struct window_mode window_tree_mode;
2996 
2997 /* window-clock.c */
2998 extern const struct window_mode window_clock_mode;
2999 extern const char window_clock_table[14][5][5];
3000 
3001 /* window-client.c */
3002 extern const struct window_mode window_client_mode;
3003 
3004 /* window-copy.c */
3005 extern const struct window_mode window_copy_mode;
3006 extern const struct window_mode window_view_mode;
3007 void printflike(2, 3) window_copy_add(struct window_pane *, const char *, ...);
3008 void printflike(2, 0) window_copy_vadd(struct window_pane *, const char *,
3009 		     va_list);
3010 void		 window_copy_pageup(struct window_pane *, int);
3011 void		 window_copy_start_drag(struct client *, struct mouse_event *);
3012 char		*window_copy_get_word(struct window_pane *, u_int, u_int);
3013 char		*window_copy_get_line(struct window_pane *, u_int);
3014 
3015 /* window-option.c */
3016 extern const struct window_mode window_customize_mode;
3017 
3018 /* names.c */
3019 void	 check_window_name(struct window *);
3020 char	*default_window_name(struct window *);
3021 char	*parse_window_name(const char *);
3022 
3023 /* control.c */
3024 void	control_discard(struct client *);
3025 void	control_start(struct client *);
3026 void	control_stop(struct client *);
3027 void	control_set_pane_on(struct client *, struct window_pane *);
3028 void	control_set_pane_off(struct client *, struct window_pane *);
3029 void	control_continue_pane(struct client *, struct window_pane *);
3030 void	control_pause_pane(struct client *, struct window_pane *);
3031 struct window_pane_offset *control_pane_offset(struct client *,
3032 	   struct window_pane *, int *);
3033 void	control_reset_offsets(struct client *);
3034 void printflike(2, 3) control_write(struct client *, const char *, ...);
3035 void	control_write_output(struct client *, struct window_pane *);
3036 int	control_all_done(struct client *);
3037 void	control_add_sub(struct client *, const char *, enum control_sub_type,
3038     	   int, const char *);
3039 void	control_remove_sub(struct client *, const char *);
3040 
3041 /* control-notify.c */
3042 void	control_notify_input(struct client *, struct window_pane *,
3043 	    const u_char *, size_t);
3044 void	control_notify_pane_mode_changed(int);
3045 void	control_notify_window_layout_changed(struct window *);
3046 void	control_notify_window_pane_changed(struct window *);
3047 void	control_notify_window_unlinked(struct session *, struct window *);
3048 void	control_notify_window_linked(struct session *, struct window *);
3049 void	control_notify_window_renamed(struct window *);
3050 void	control_notify_client_session_changed(struct client *);
3051 void	control_notify_client_detached(struct client *);
3052 void	control_notify_session_renamed(struct session *);
3053 void	control_notify_session_created(struct session *);
3054 void	control_notify_session_closed(struct session *);
3055 void	control_notify_session_window_changed(struct session *);
3056 
3057 /* session.c */
3058 extern struct sessions sessions;
3059 int	session_cmp(struct session *, struct session *);
3060 RB_PROTOTYPE(sessions, session, entry, session_cmp);
3061 int		 session_alive(struct session *);
3062 struct session	*session_find(const char *);
3063 struct session	*session_find_by_id_str(const char *);
3064 struct session	*session_find_by_id(u_int);
3065 struct session	*session_create(const char *, const char *, const char *,
3066 		     struct environ *, struct options *, struct termios *);
3067 void		 session_destroy(struct session *, int,	 const char *);
3068 void		 session_add_ref(struct session *, const char *);
3069 void		 session_remove_ref(struct session *, const char *);
3070 char		*session_check_name(const char *);
3071 void		 session_update_activity(struct session *, struct timeval *);
3072 struct session	*session_next_session(struct session *);
3073 struct session	*session_previous_session(struct session *);
3074 struct winlink	*session_new(struct session *, const char *, int, char **,
3075 		     const char *, const char *, int, char **);
3076 struct winlink	*session_attach(struct session *, struct window *, int,
3077 		     char **);
3078 int		 session_detach(struct session *, struct winlink *);
3079 int		 session_has(struct session *, struct window *);
3080 int		 session_is_linked(struct session *, struct window *);
3081 int		 session_next(struct session *, int);
3082 int		 session_previous(struct session *, int);
3083 int		 session_select(struct session *, int);
3084 int		 session_last(struct session *);
3085 int		 session_set_current(struct session *, struct winlink *);
3086 struct session_group *session_group_contains(struct session *);
3087 struct session_group *session_group_find(const char *);
3088 struct session_group *session_group_new(const char *);
3089 void		 session_group_add(struct session_group *, struct session *);
3090 void		 session_group_synchronize_to(struct session *);
3091 void		 session_group_synchronize_from(struct session *);
3092 u_int		 session_group_count(struct session_group *);
3093 u_int		 session_group_attached_count(struct session_group *);
3094 void		 session_renumber_windows(struct session *);
3095 
3096 /* utf8.c */
3097 utf8_char	 utf8_build_one(u_char);
3098 enum utf8_state	 utf8_from_data(const struct utf8_data *, utf8_char *);
3099 void		 utf8_to_data(utf8_char, struct utf8_data *);
3100 void		 utf8_set(struct utf8_data *, u_char);
3101 void		 utf8_copy(struct utf8_data *, const struct utf8_data *);
3102 enum utf8_state	 utf8_open(struct utf8_data *, u_char);
3103 enum utf8_state	 utf8_append(struct utf8_data *, u_char);
3104 int		 utf8_isvalid(const char *);
3105 int		 utf8_strvis(char *, const char *, size_t, int);
3106 int		 utf8_stravis(char **, const char *, int);
3107 int		 utf8_stravisx(char **, const char *, size_t, int);
3108 char		*utf8_sanitize(const char *);
3109 size_t		 utf8_strlen(const struct utf8_data *);
3110 u_int		 utf8_strwidth(const struct utf8_data *, ssize_t);
3111 struct utf8_data *utf8_fromcstr(const char *);
3112 char		*utf8_tocstr(struct utf8_data *);
3113 u_int		 utf8_cstrwidth(const char *);
3114 char		*utf8_padcstr(const char *, u_int);
3115 char		*utf8_rpadcstr(const char *, u_int);
3116 int		 utf8_cstrhas(const char *, const struct utf8_data *);
3117 
3118 /* procname.c */
3119 char   *get_proc_name(int, char *);
3120 char   *get_proc_cwd(int);
3121 
3122 /* log.c */
3123 void	log_add_level(void);
3124 int	log_get_level(void);
3125 void	log_open(const char *);
3126 void	log_toggle(const char *);
3127 void	log_close(void);
3128 void printflike(1, 2) log_debug(const char *, ...);
3129 __dead void printflike(1, 2) fatal(const char *, ...);
3130 __dead void printflike(1, 2) fatalx(const char *, ...);
3131 
3132 /* menu.c */
3133 #define MENU_NOMOUSE 0x1
3134 #define MENU_TAB 0x2
3135 #define MENU_STAYOPEN 0x4
3136 struct menu	*menu_create(const char *);
3137 void		 menu_add_items(struct menu *, const struct menu_item *,
3138 		    struct cmdq_item *, struct client *,
3139 		    struct cmd_find_state *);
3140 void		 menu_add_item(struct menu *, const struct menu_item *,
3141 		    struct cmdq_item *, struct client *,
3142 		    struct cmd_find_state *);
3143 void		 menu_free(struct menu *);
3144 struct menu_data *menu_prepare(struct menu *, int, struct cmdq_item *, u_int,
3145 		    u_int, struct client *, struct cmd_find_state *,
3146 		    menu_choice_cb, void *);
3147 int		 menu_display(struct menu *, int, struct cmdq_item *, u_int,
3148 		    u_int, struct client *, struct cmd_find_state *,
3149 		    menu_choice_cb, void *);
3150 struct screen	*menu_mode_cb(struct client *, void *, u_int *, u_int *);
3151 void		 menu_check_cb(struct client *, void *, u_int, u_int, u_int,
3152 		    struct overlay_ranges *);
3153 void		 menu_draw_cb(struct client *, void *,
3154 		    struct screen_redraw_ctx *);
3155 void		 menu_free_cb(struct client *, void *);
3156 int		 menu_key_cb(struct client *, void *, struct key_event *);
3157 
3158 /* popup.c */
3159 #define POPUP_CLOSEEXIT 0x1
3160 #define POPUP_CLOSEEXITZERO 0x2
3161 #define POPUP_INTERNAL 0x4
3162 typedef void (*popup_close_cb)(int, void *);
3163 typedef void (*popup_finish_edit_cb)(char *, size_t, void *);
3164 int		 popup_display(int, int, struct cmdq_item *, u_int, u_int,
3165 		    u_int, u_int, struct environ *, const char *, int, char **,
3166 		    const char *, const char *, struct client *,
3167 		    struct session *, const char *, const char *,
3168 		    popup_close_cb, void *);
3169 int		 popup_editor(struct client *, const char *, size_t,
3170 		    popup_finish_edit_cb, void *);
3171 
3172 /* style.c */
3173 int		 style_parse(struct style *,const struct grid_cell *,
3174 		     const char *);
3175 const char	*style_tostring(struct style *);
3176 void		 style_add(struct grid_cell *, struct options *,
3177 		     const char *, struct format_tree *);
3178 void		 style_apply(struct grid_cell *, struct options *,
3179 		     const char *, struct format_tree *);
3180 void		 style_set(struct style *, const struct grid_cell *);
3181 void		 style_copy(struct style *, struct style *);
3182 
3183 /* spawn.c */
3184 struct winlink	*spawn_window(struct spawn_context *, char **);
3185 struct window_pane *spawn_pane(struct spawn_context *, char **);
3186 
3187 /* regsub.c */
3188 char		*regsub(const char *, const char *, const char *, int);
3189 
3190 #endif /* TMUX_H */
3191