xref: /openbsd/usr.bin/tmux/tmux.h (revision afeb706a)
1 /* $OpenBSD: tmux.h,v 1.1240 2024/11/12 09:32:56 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 #include <wchar.h>
34 
35 #include "tmux-protocol.h"
36 #include "xmalloc.h"
37 
38 extern char   **environ;
39 
40 struct args;
41 struct args_command_state;
42 struct client;
43 struct cmd;
44 struct cmd_find_state;
45 struct cmdq_item;
46 struct cmdq_list;
47 struct cmdq_state;
48 struct cmds;
49 struct control_state;
50 struct environ;
51 struct format_job_tree;
52 struct format_tree;
53 struct hyperlinks_uri;
54 struct hyperlinks;
55 struct input_ctx;
56 struct job;
57 struct menu_data;
58 struct mode_tree_data;
59 struct mouse_event;
60 struct options;
61 struct options_array_item;
62 struct options_entry;
63 struct screen_write_citem;
64 struct screen_write_cline;
65 struct screen_write_ctx;
66 struct session;
67 struct tty_ctx;
68 struct tty_code;
69 struct tty_key;
70 struct tmuxpeer;
71 struct tmuxproc;
72 struct winlink;
73 
74 /* Default configuration files and socket paths. */
75 #ifndef TMUX_CONF
76 #define TMUX_CONF "/etc/tmux.conf:~/.tmux.conf"
77 #endif
78 #ifndef TMUX_SOCK
79 #define TMUX_SOCK "$TMUX_TMPDIR:" _PATH_TMP
80 #endif
81 #ifndef TMUX_SOCK_PERM
82 #define TMUX_SOCK_PERM (7 /* o+rwx */)
83 #endif
84 #ifndef TMUX_TERM
85 #define TMUX_TERM "screen"
86 #endif
87 
88 /* Minimum layout cell size, NOT including border lines. */
89 #define PANE_MINIMUM 1
90 
91 /* Minimum and maximum window size. */
92 #define WINDOW_MINIMUM PANE_MINIMUM
93 #define WINDOW_MAXIMUM 10000
94 
95 /* Automatic name refresh interval, in microseconds. Must be < 1 second. */
96 #define NAME_INTERVAL 500000
97 
98 /* Default pixel cell sizes. */
99 #define DEFAULT_XPIXEL 16
100 #define DEFAULT_YPIXEL 32
101 
102 /* Attribute to make GCC check printf-like arguments. */
103 #define printflike(a, b) __attribute__ ((format (printf, a, b)))
104 
105 /* Number of items in array. */
106 #ifndef nitems
107 #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
108 #endif
109 
110 /* Alert option values. */
111 #define ALERT_NONE 0
112 #define ALERT_ANY 1
113 #define ALERT_CURRENT 2
114 #define ALERT_OTHER 3
115 
116 /* Visual option values. */
117 #define VISUAL_OFF 0
118 #define VISUAL_ON 1
119 #define VISUAL_BOTH 2
120 
121 /* No key or unknown key. */
122 #define KEYC_NONE            0x000ff000000000ULL
123 #define KEYC_UNKNOWN         0x000fe000000000ULL
124 
125 /*
126  * Base for special (that is, not Unicode) keys. An enum must be at most a
127  * signed int, so these are based in the highest Unicode PUA.
128  */
129 #define KEYC_BASE            0x0000000010e000ULL
130 #define KEYC_USER            0x0000000010f000ULL
131 #define KEYC_USER_END	     (KEYC_USER + KEYC_NUSER)
132 
133 /* Key modifier bits. */
134 #define KEYC_META            0x00100000000000ULL
135 #define KEYC_CTRL            0x00200000000000ULL
136 #define KEYC_SHIFT           0x00400000000000ULL
137 
138 /* Key flag bits. */
139 #define KEYC_LITERAL	     0x01000000000000ULL
140 #define KEYC_KEYPAD	     0x02000000000000ULL
141 #define KEYC_CURSOR	     0x04000000000000ULL
142 #define KEYC_IMPLIED_META    0x08000000000000ULL
143 #define KEYC_BUILD_MODIFIERS 0x10000000000000ULL
144 #define KEYC_VI		     0x20000000000000ULL
145 #define KEYC_SENT	     0x40000000000000ULL
146 
147 /* Masks for key bits. */
148 #define KEYC_MASK_MODIFIERS  0x00f00000000000ULL
149 #define KEYC_MASK_FLAGS      0xff000000000000ULL
150 #define KEYC_MASK_KEY        0x000fffffffffffULL
151 
152 /* Available user keys. */
153 #define KEYC_NUSER 1000
154 
155 /* Is this a mouse key? */
156 #define KEYC_IS_MOUSE(key) \
157 	(((key) & KEYC_MASK_KEY) >= KEYC_MOUSE && \
158 	 ((key) & KEYC_MASK_KEY) < KEYC_BSPACE)
159 
160 /* Is this a Unicode key? */
161 #define KEYC_IS_UNICODE(key) \
162 	(((key) & KEYC_MASK_KEY) > 0x7f && \
163 	 (((key) & KEYC_MASK_KEY) < KEYC_BASE || \
164 	  ((key) & KEYC_MASK_KEY) >= KEYC_BASE_END) && \
165 	 (((key) & KEYC_MASK_KEY) < KEYC_USER || \
166 	  ((key) & KEYC_MASK_KEY) >= KEYC_USER_END))
167 
168 /* Multiple click timeout. */
169 #define KEYC_CLICK_TIMEOUT 300
170 
171 /* Mouse key codes. */
172 #define KEYC_MOUSE_KEY(name)		    \
173 	KEYC_ ## name ## _PANE,		    \
174 	KEYC_ ## name ## _STATUS,	    \
175 	KEYC_ ## name ## _STATUS_LEFT,	    \
176 	KEYC_ ## name ## _STATUS_RIGHT,	    \
177 	KEYC_ ## name ## _STATUS_DEFAULT,   \
178 	KEYC_ ## name ## _SCROLLBAR_UP,	    \
179 	KEYC_ ## name ## _SCROLLBAR_SLIDER, \
180 	KEYC_ ## name ## _SCROLLBAR_DOWN,   \
181 	KEYC_ ## name ## _BORDER
182 #define KEYC_MOUSE_STRING(name, s)				      \
183 	{ #s "Pane", KEYC_ ## name ## _PANE },			      \
184 	{ #s "Status", KEYC_ ## name ## _STATUS },		      \
185 	{ #s "StatusLeft", KEYC_ ## name ## _STATUS_LEFT },	      \
186 	{ #s "StatusRight", KEYC_ ## name ## _STATUS_RIGHT },	      \
187 	{ #s "StatusDefault", KEYC_ ## name ## _STATUS_DEFAULT },     \
188 	{ #s "ScrollbarUp", KEYC_ ## name ## _SCROLLBAR_UP },         \
189 	{ #s "ScrollbarSlider", KEYC_ ## name ## _SCROLLBAR_SLIDER }, \
190 	{ #s "ScrollbarDown", KEYC_ ## name ## _SCROLLBAR_DOWN },     \
191 	{ #s "Border", KEYC_ ## name ## _BORDER }
192 
193 /*
194  * A single key. This can be ASCII or Unicode or one of the keys between
195  * KEYC_BASE and KEYC_BASE_END.
196  */
197 typedef unsigned long long key_code;
198 
199 /* C0 control characters */
200 enum {
201 	C0_NUL,
202 	C0_SOH,
203 	C0_STX,
204 	C0_ETX,
205 	C0_EOT,
206 	C0_ENQ,
207 	C0_ASC,
208 	C0_BEL,
209 	C0_BS,
210 	C0_HT,
211 	C0_LF,
212 	C0_VT,
213 	C0_FF,
214 	C0_CR,
215 	C0_SO,
216 	C0_SI,
217 	C0_DLE,
218 	C0_DC1,
219 	C0_DC2,
220 	C0_DC3,
221 	C0_DC4,
222 	C0_NAK,
223 	C0_SYN,
224 	C0_ETB,
225 	C0_CAN,
226 	C0_EM,
227 	C0_SUB,
228 	C0_ESC,
229 	C0_FS,
230 	C0_GS,
231 	C0_RS,
232 	C0_US
233 };
234 
235 /* Special key codes. */
236 enum {
237 	/* Focus events. */
238 	KEYC_FOCUS_IN = KEYC_BASE,
239 	KEYC_FOCUS_OUT,
240 
241 	/* "Any" key, used if not found in key table. */
242 	KEYC_ANY,
243 
244 	/* Paste brackets. */
245 	KEYC_PASTE_START,
246 	KEYC_PASTE_END,
247 
248 	/* Mouse keys. */
249 	KEYC_MOUSE, /* unclassified mouse event */
250 	KEYC_DRAGGING, /* dragging in progress */
251 	KEYC_DOUBLECLICK, /* double click complete */
252 	KEYC_MOUSE_KEY(MOUSEMOVE),
253 	KEYC_MOUSE_KEY(MOUSEDOWN1),
254 	KEYC_MOUSE_KEY(MOUSEDOWN2),
255 	KEYC_MOUSE_KEY(MOUSEDOWN3),
256 	KEYC_MOUSE_KEY(MOUSEDOWN6),
257 	KEYC_MOUSE_KEY(MOUSEDOWN7),
258 	KEYC_MOUSE_KEY(MOUSEDOWN8),
259 	KEYC_MOUSE_KEY(MOUSEDOWN9),
260 	KEYC_MOUSE_KEY(MOUSEDOWN10),
261 	KEYC_MOUSE_KEY(MOUSEDOWN11),
262 	KEYC_MOUSE_KEY(MOUSEUP1),
263 	KEYC_MOUSE_KEY(MOUSEUP2),
264 	KEYC_MOUSE_KEY(MOUSEUP3),
265 	KEYC_MOUSE_KEY(MOUSEUP6),
266 	KEYC_MOUSE_KEY(MOUSEUP7),
267 	KEYC_MOUSE_KEY(MOUSEUP8),
268 	KEYC_MOUSE_KEY(MOUSEUP9),
269 	KEYC_MOUSE_KEY(MOUSEUP10),
270 	KEYC_MOUSE_KEY(MOUSEUP11),
271 	KEYC_MOUSE_KEY(MOUSEDRAG1),
272 	KEYC_MOUSE_KEY(MOUSEDRAG2),
273 	KEYC_MOUSE_KEY(MOUSEDRAG3),
274 	KEYC_MOUSE_KEY(MOUSEDRAG6),
275 	KEYC_MOUSE_KEY(MOUSEDRAG7),
276 	KEYC_MOUSE_KEY(MOUSEDRAG8),
277 	KEYC_MOUSE_KEY(MOUSEDRAG9),
278 	KEYC_MOUSE_KEY(MOUSEDRAG10),
279 	KEYC_MOUSE_KEY(MOUSEDRAG11),
280 	KEYC_MOUSE_KEY(MOUSEDRAGEND1),
281 	KEYC_MOUSE_KEY(MOUSEDRAGEND2),
282 	KEYC_MOUSE_KEY(MOUSEDRAGEND3),
283 	KEYC_MOUSE_KEY(MOUSEDRAGEND6),
284 	KEYC_MOUSE_KEY(MOUSEDRAGEND7),
285 	KEYC_MOUSE_KEY(MOUSEDRAGEND8),
286 	KEYC_MOUSE_KEY(MOUSEDRAGEND9),
287 	KEYC_MOUSE_KEY(MOUSEDRAGEND10),
288 	KEYC_MOUSE_KEY(MOUSEDRAGEND11),
289 	KEYC_MOUSE_KEY(WHEELUP),
290 	KEYC_MOUSE_KEY(WHEELDOWN),
291 	KEYC_MOUSE_KEY(SECONDCLICK1),
292 	KEYC_MOUSE_KEY(SECONDCLICK2),
293 	KEYC_MOUSE_KEY(SECONDCLICK3),
294 	KEYC_MOUSE_KEY(SECONDCLICK6),
295 	KEYC_MOUSE_KEY(SECONDCLICK7),
296 	KEYC_MOUSE_KEY(SECONDCLICK8),
297 	KEYC_MOUSE_KEY(SECONDCLICK9),
298 	KEYC_MOUSE_KEY(SECONDCLICK10),
299 	KEYC_MOUSE_KEY(SECONDCLICK11),
300 	KEYC_MOUSE_KEY(DOUBLECLICK1),
301 	KEYC_MOUSE_KEY(DOUBLECLICK2),
302 	KEYC_MOUSE_KEY(DOUBLECLICK3),
303 	KEYC_MOUSE_KEY(DOUBLECLICK6),
304 	KEYC_MOUSE_KEY(DOUBLECLICK7),
305 	KEYC_MOUSE_KEY(DOUBLECLICK8),
306 	KEYC_MOUSE_KEY(DOUBLECLICK9),
307 	KEYC_MOUSE_KEY(DOUBLECLICK10),
308 	KEYC_MOUSE_KEY(DOUBLECLICK11),
309 	KEYC_MOUSE_KEY(TRIPLECLICK1),
310 	KEYC_MOUSE_KEY(TRIPLECLICK2),
311 	KEYC_MOUSE_KEY(TRIPLECLICK3),
312 	KEYC_MOUSE_KEY(TRIPLECLICK6),
313 	KEYC_MOUSE_KEY(TRIPLECLICK7),
314 	KEYC_MOUSE_KEY(TRIPLECLICK8),
315 	KEYC_MOUSE_KEY(TRIPLECLICK9),
316 	KEYC_MOUSE_KEY(TRIPLECLICK10),
317 	KEYC_MOUSE_KEY(TRIPLECLICK11),
318 
319 	/* Backspace key. */
320 	KEYC_BSPACE,
321 
322 	/* Function keys. */
323 	KEYC_F1,
324 	KEYC_F2,
325 	KEYC_F3,
326 	KEYC_F4,
327 	KEYC_F5,
328 	KEYC_F6,
329 	KEYC_F7,
330 	KEYC_F8,
331 	KEYC_F9,
332 	KEYC_F10,
333 	KEYC_F11,
334 	KEYC_F12,
335 	KEYC_IC,
336 	KEYC_DC,
337 	KEYC_HOME,
338 	KEYC_END,
339 	KEYC_NPAGE,
340 	KEYC_PPAGE,
341 	KEYC_BTAB,
342 
343 	/* Arrow keys. */
344 	KEYC_UP,
345 	KEYC_DOWN,
346 	KEYC_LEFT,
347 	KEYC_RIGHT,
348 
349 	/* Numeric keypad. */
350 	KEYC_KP_SLASH,
351 	KEYC_KP_STAR,
352 	KEYC_KP_MINUS,
353 	KEYC_KP_SEVEN,
354 	KEYC_KP_EIGHT,
355 	KEYC_KP_NINE,
356 	KEYC_KP_PLUS,
357 	KEYC_KP_FOUR,
358 	KEYC_KP_FIVE,
359 	KEYC_KP_SIX,
360 	KEYC_KP_ONE,
361 	KEYC_KP_TWO,
362 	KEYC_KP_THREE,
363 	KEYC_KP_ENTER,
364 	KEYC_KP_ZERO,
365 	KEYC_KP_PERIOD,
366 
367 	/* End of special keys. */
368 	KEYC_BASE_END
369 };
370 
371 /* Termcap codes. */
372 enum tty_code_code {
373 	TTYC_ACSC,
374 	TTYC_AM,
375 	TTYC_AX,
376 	TTYC_BCE,
377 	TTYC_BEL,
378 	TTYC_BIDI,
379 	TTYC_BLINK,
380 	TTYC_BOLD,
381 	TTYC_CIVIS,
382 	TTYC_CLEAR,
383 	TTYC_CLMG,
384 	TTYC_CMG,
385 	TTYC_CNORM,
386 	TTYC_COLORS,
387 	TTYC_CR,
388 	TTYC_CS,
389 	TTYC_CSR,
390 	TTYC_CUB,
391 	TTYC_CUB1,
392 	TTYC_CUD,
393 	TTYC_CUD1,
394 	TTYC_CUF,
395 	TTYC_CUF1,
396 	TTYC_CUP,
397 	TTYC_CUU,
398 	TTYC_CUU1,
399 	TTYC_CVVIS,
400 	TTYC_DCH,
401 	TTYC_DCH1,
402 	TTYC_DIM,
403 	TTYC_DL,
404 	TTYC_DL1,
405 	TTYC_DSBP,
406 	TTYC_DSEKS,
407 	TTYC_DSFCS,
408 	TTYC_DSMG,
409 	TTYC_E3,
410 	TTYC_ECH,
411 	TTYC_ED,
412 	TTYC_EL,
413 	TTYC_EL1,
414 	TTYC_ENACS,
415 	TTYC_ENBP,
416 	TTYC_ENEKS,
417 	TTYC_ENFCS,
418 	TTYC_ENMG,
419 	TTYC_FSL,
420 	TTYC_HLS,
421 	TTYC_HOME,
422 	TTYC_HPA,
423 	TTYC_ICH,
424 	TTYC_ICH1,
425 	TTYC_IL,
426 	TTYC_IL1,
427 	TTYC_INDN,
428 	TTYC_INVIS,
429 	TTYC_KCBT,
430 	TTYC_KCUB1,
431 	TTYC_KCUD1,
432 	TTYC_KCUF1,
433 	TTYC_KCUU1,
434 	TTYC_KDC2,
435 	TTYC_KDC3,
436 	TTYC_KDC4,
437 	TTYC_KDC5,
438 	TTYC_KDC6,
439 	TTYC_KDC7,
440 	TTYC_KDCH1,
441 	TTYC_KDN2,
442 	TTYC_KDN3,
443 	TTYC_KDN4,
444 	TTYC_KDN5,
445 	TTYC_KDN6,
446 	TTYC_KDN7,
447 	TTYC_KEND,
448 	TTYC_KEND2,
449 	TTYC_KEND3,
450 	TTYC_KEND4,
451 	TTYC_KEND5,
452 	TTYC_KEND6,
453 	TTYC_KEND7,
454 	TTYC_KF1,
455 	TTYC_KF10,
456 	TTYC_KF11,
457 	TTYC_KF12,
458 	TTYC_KF13,
459 	TTYC_KF14,
460 	TTYC_KF15,
461 	TTYC_KF16,
462 	TTYC_KF17,
463 	TTYC_KF18,
464 	TTYC_KF19,
465 	TTYC_KF2,
466 	TTYC_KF20,
467 	TTYC_KF21,
468 	TTYC_KF22,
469 	TTYC_KF23,
470 	TTYC_KF24,
471 	TTYC_KF25,
472 	TTYC_KF26,
473 	TTYC_KF27,
474 	TTYC_KF28,
475 	TTYC_KF29,
476 	TTYC_KF3,
477 	TTYC_KF30,
478 	TTYC_KF31,
479 	TTYC_KF32,
480 	TTYC_KF33,
481 	TTYC_KF34,
482 	TTYC_KF35,
483 	TTYC_KF36,
484 	TTYC_KF37,
485 	TTYC_KF38,
486 	TTYC_KF39,
487 	TTYC_KF4,
488 	TTYC_KF40,
489 	TTYC_KF41,
490 	TTYC_KF42,
491 	TTYC_KF43,
492 	TTYC_KF44,
493 	TTYC_KF45,
494 	TTYC_KF46,
495 	TTYC_KF47,
496 	TTYC_KF48,
497 	TTYC_KF49,
498 	TTYC_KF5,
499 	TTYC_KF50,
500 	TTYC_KF51,
501 	TTYC_KF52,
502 	TTYC_KF53,
503 	TTYC_KF54,
504 	TTYC_KF55,
505 	TTYC_KF56,
506 	TTYC_KF57,
507 	TTYC_KF58,
508 	TTYC_KF59,
509 	TTYC_KF6,
510 	TTYC_KF60,
511 	TTYC_KF61,
512 	TTYC_KF62,
513 	TTYC_KF63,
514 	TTYC_KF7,
515 	TTYC_KF8,
516 	TTYC_KF9,
517 	TTYC_KHOM2,
518 	TTYC_KHOM3,
519 	TTYC_KHOM4,
520 	TTYC_KHOM5,
521 	TTYC_KHOM6,
522 	TTYC_KHOM7,
523 	TTYC_KHOME,
524 	TTYC_KIC2,
525 	TTYC_KIC3,
526 	TTYC_KIC4,
527 	TTYC_KIC5,
528 	TTYC_KIC6,
529 	TTYC_KIC7,
530 	TTYC_KICH1,
531 	TTYC_KIND,
532 	TTYC_KLFT2,
533 	TTYC_KLFT3,
534 	TTYC_KLFT4,
535 	TTYC_KLFT5,
536 	TTYC_KLFT6,
537 	TTYC_KLFT7,
538 	TTYC_KMOUS,
539 	TTYC_KNP,
540 	TTYC_KNXT2,
541 	TTYC_KNXT3,
542 	TTYC_KNXT4,
543 	TTYC_KNXT5,
544 	TTYC_KNXT6,
545 	TTYC_KNXT7,
546 	TTYC_KPP,
547 	TTYC_KPRV2,
548 	TTYC_KPRV3,
549 	TTYC_KPRV4,
550 	TTYC_KPRV5,
551 	TTYC_KPRV6,
552 	TTYC_KPRV7,
553 	TTYC_KRI,
554 	TTYC_KRIT2,
555 	TTYC_KRIT3,
556 	TTYC_KRIT4,
557 	TTYC_KRIT5,
558 	TTYC_KRIT6,
559 	TTYC_KRIT7,
560 	TTYC_KUP2,
561 	TTYC_KUP3,
562 	TTYC_KUP4,
563 	TTYC_KUP5,
564 	TTYC_KUP6,
565 	TTYC_KUP7,
566 	TTYC_MS,
567 	TTYC_NOBR,
568 	TTYC_OL,
569 	TTYC_OP,
570 	TTYC_RECT,
571 	TTYC_REV,
572 	TTYC_RGB,
573 	TTYC_RI,
574 	TTYC_RIN,
575 	TTYC_RMACS,
576 	TTYC_RMCUP,
577 	TTYC_RMKX,
578 	TTYC_SE,
579 	TTYC_SETAB,
580 	TTYC_SETAF,
581 	TTYC_SETAL,
582 	TTYC_SETRGBB,
583 	TTYC_SETRGBF,
584 	TTYC_SETULC,
585 	TTYC_SETULC1,
586 	TTYC_SGR0,
587 	TTYC_SITM,
588 	TTYC_SMACS,
589 	TTYC_SMCUP,
590 	TTYC_SMKX,
591 	TTYC_SMOL,
592 	TTYC_SMSO,
593 	TTYC_SMUL,
594 	TTYC_SMULX,
595 	TTYC_SMXX,
596 	TTYC_SXL,
597 	TTYC_SS,
598 	TTYC_SWD,
599 	TTYC_SYNC,
600 	TTYC_TC,
601 	TTYC_TSL,
602 	TTYC_U8,
603 	TTYC_VPA,
604 	TTYC_XT
605 };
606 
607 /* Character classes. */
608 #define WHITESPACE " "
609 
610 /* Mode keys. */
611 #define MODEKEY_EMACS 0
612 #define MODEKEY_VI 1
613 
614 /* Modes. */
615 #define MODE_CURSOR 0x1
616 #define MODE_INSERT 0x2
617 #define MODE_KCURSOR 0x4
618 #define MODE_KKEYPAD 0x8
619 #define MODE_WRAP 0x10
620 #define MODE_MOUSE_STANDARD 0x20
621 #define MODE_MOUSE_BUTTON 0x40
622 #define MODE_CURSOR_BLINKING 0x80
623 #define MODE_MOUSE_UTF8 0x100
624 #define MODE_MOUSE_SGR 0x200
625 #define MODE_BRACKETPASTE 0x400
626 #define MODE_FOCUSON 0x800
627 #define MODE_MOUSE_ALL 0x1000
628 #define MODE_ORIGIN 0x2000
629 #define MODE_CRLF 0x4000
630 #define MODE_KEYS_EXTENDED 0x8000
631 #define MODE_CURSOR_VERY_VISIBLE 0x10000
632 #define MODE_CURSOR_BLINKING_SET 0x20000
633 #define MODE_KEYS_EXTENDED_2 0x40000
634 
635 #define ALL_MODES 0xffffff
636 #define ALL_MOUSE_MODES (MODE_MOUSE_STANDARD|MODE_MOUSE_BUTTON|MODE_MOUSE_ALL)
637 #define MOTION_MOUSE_MODES (MODE_MOUSE_BUTTON|MODE_MOUSE_ALL)
638 #define CURSOR_MODES (MODE_CURSOR|MODE_CURSOR_BLINKING|MODE_CURSOR_VERY_VISIBLE)
639 #define EXTENDED_KEY_MODES (MODE_KEYS_EXTENDED|MODE_KEYS_EXTENDED_2)
640 
641 /* Mouse protocol constants. */
642 #define MOUSE_PARAM_MAX 0xff
643 #define MOUSE_PARAM_UTF8_MAX 0x7ff
644 #define MOUSE_PARAM_BTN_OFF 0x20
645 #define MOUSE_PARAM_POS_OFF 0x21
646 
647 /* A single UTF-8 character. */
648 typedef u_int utf8_char;
649 
650 /*
651  * An expanded UTF-8 character. UTF8_SIZE must be big enough to hold combining
652  * characters as well. It can't be more than 32 bytes without changes to how
653  * characters are stored.
654  */
655 #define UTF8_SIZE 21
656 struct utf8_data {
657 	u_char	data[UTF8_SIZE];
658 
659 	u_char	have;
660 	u_char	size;
661 
662 	u_char	width;	/* 0xff if invalid */
663 };
664 enum utf8_state {
665 	UTF8_MORE,
666 	UTF8_DONE,
667 	UTF8_ERROR
668 };
669 
670 /* Colour flags. */
671 #define COLOUR_FLAG_256 0x01000000
672 #define COLOUR_FLAG_RGB 0x02000000
673 
674 /* Special colours. */
675 #define COLOUR_DEFAULT(c) ((c) == 8 || (c) == 9)
676 
677 /* Replacement palette. */
678 struct colour_palette {
679 	int	 fg;
680 	int	 bg;
681 
682 	int	*palette;
683 	int	*default_palette;
684 };
685 
686 /* Grid attributes. Anything above 0xff is stored in an extended cell. */
687 #define GRID_ATTR_BRIGHT 0x1
688 #define GRID_ATTR_DIM 0x2
689 #define GRID_ATTR_UNDERSCORE 0x4
690 #define GRID_ATTR_BLINK 0x8
691 #define GRID_ATTR_REVERSE 0x10
692 #define GRID_ATTR_HIDDEN 0x20
693 #define GRID_ATTR_ITALICS 0x40
694 #define GRID_ATTR_CHARSET 0x80	/* alternative character set */
695 #define GRID_ATTR_STRIKETHROUGH 0x100
696 #define GRID_ATTR_UNDERSCORE_2 0x200
697 #define GRID_ATTR_UNDERSCORE_3 0x400
698 #define GRID_ATTR_UNDERSCORE_4 0x800
699 #define GRID_ATTR_UNDERSCORE_5 0x1000
700 #define GRID_ATTR_OVERLINE 0x2000
701 
702 /* All underscore attributes. */
703 #define GRID_ATTR_ALL_UNDERSCORE \
704 	(GRID_ATTR_UNDERSCORE|	 \
705 	 GRID_ATTR_UNDERSCORE_2| \
706 	 GRID_ATTR_UNDERSCORE_3| \
707 	 GRID_ATTR_UNDERSCORE_4| \
708 	 GRID_ATTR_UNDERSCORE_5)
709 
710 /* Grid flags. */
711 #define GRID_FLAG_FG256 0x1
712 #define GRID_FLAG_BG256 0x2
713 #define GRID_FLAG_PADDING 0x4
714 #define GRID_FLAG_EXTENDED 0x8
715 #define GRID_FLAG_SELECTED 0x10
716 #define GRID_FLAG_NOPALETTE 0x20
717 #define GRID_FLAG_CLEARED 0x40
718 #define GRID_FLAG_TAB 0x80
719 
720 /* Grid line flags. */
721 #define GRID_LINE_WRAPPED 0x1
722 #define GRID_LINE_EXTENDED 0x2
723 #define GRID_LINE_DEAD 0x4
724 #define GRID_LINE_START_PROMPT 0x8
725 #define GRID_LINE_START_OUTPUT 0x10
726 
727 /* Grid string flags. */
728 #define GRID_STRING_WITH_SEQUENCES 0x1
729 #define GRID_STRING_ESCAPE_SEQUENCES 0x2
730 #define GRID_STRING_TRIM_SPACES 0x4
731 #define GRID_STRING_USED_ONLY 0x8
732 #define GRID_STRING_EMPTY_CELLS 0x10
733 
734 /* Cell positions. */
735 #define CELL_INSIDE 0
736 #define CELL_TOPBOTTOM 1
737 #define CELL_LEFTRIGHT 2
738 #define CELL_TOPLEFT 3
739 #define CELL_TOPRIGHT 4
740 #define CELL_BOTTOMLEFT 5
741 #define CELL_BOTTOMRIGHT 6
742 #define CELL_TOPJOIN 7
743 #define CELL_BOTTOMJOIN 8
744 #define CELL_LEFTJOIN 9
745 #define CELL_RIGHTJOIN 10
746 #define CELL_JOIN 11
747 #define CELL_OUTSIDE 12
748 #define CELL_SCROLLBAR 13
749 
750 /* Cell borders. */
751 #define CELL_BORDERS " xqlkmjwvtun~"
752 #define SIMPLE_BORDERS " |-+++++++++."
753 #define PADDED_BORDERS "             "
754 
755 /* Grid cell data. */
756 struct grid_cell {
757 	struct utf8_data	data;
758 	u_short			attr;
759 	u_char			flags;
760 	int			fg;
761 	int			bg;
762 	int			us;
763 	u_int			link;
764 };
765 
766 /* Grid extended cell entry. */
767 struct grid_extd_entry {
768 	utf8_char		data;
769 	u_short			attr;
770 	u_char			flags;
771 	int			fg;
772 	int			bg;
773 	int			us;
774 	u_int			link;
775 } __packed;
776 
777 /* Grid cell entry. */
778 struct grid_cell_entry {
779 	union {
780 		u_int		offset;
781 		struct {
782 			u_char	attr;
783 			u_char	fg;
784 			u_char	bg;
785 			u_char	data;
786 		} data;
787 	};
788 	u_char			flags;
789 } __packed;
790 
791 /* Grid line. */
792 struct grid_line {
793 	struct grid_cell_entry	*celldata;
794 	u_int			 cellused;
795 	u_int			 cellsize;
796 
797 	struct grid_extd_entry	*extddata;
798 	u_int			 extdsize;
799 
800 	int			 flags;
801 	time_t			 time;
802 };
803 
804 /* Entire grid of cells. */
805 struct grid {
806 	int			 flags;
807 #define GRID_HISTORY 0x1 /* scroll lines into history */
808 
809 	u_int			 sx;
810 	u_int			 sy;
811 
812 	u_int			 hscrolled;
813 	u_int			 hsize;
814 	u_int			 hlimit;
815 
816 	struct grid_line	*linedata;
817 };
818 
819 /* Virtual cursor in a grid. */
820 struct grid_reader {
821 	struct grid	*gd;
822 	u_int		 cx;
823 	u_int		 cy;
824 };
825 
826 /* Style alignment. */
827 enum style_align {
828 	STYLE_ALIGN_DEFAULT,
829 	STYLE_ALIGN_LEFT,
830 	STYLE_ALIGN_CENTRE,
831 	STYLE_ALIGN_RIGHT,
832 	STYLE_ALIGN_ABSOLUTE_CENTRE
833 };
834 
835 /* Style list. */
836 enum style_list {
837 	STYLE_LIST_OFF,
838 	STYLE_LIST_ON,
839 	STYLE_LIST_FOCUS,
840 	STYLE_LIST_LEFT_MARKER,
841 	STYLE_LIST_RIGHT_MARKER,
842 };
843 
844 /* Style range. */
845 enum style_range_type {
846 	STYLE_RANGE_NONE,
847 	STYLE_RANGE_LEFT,
848 	STYLE_RANGE_RIGHT,
849 	STYLE_RANGE_PANE,
850 	STYLE_RANGE_WINDOW,
851 	STYLE_RANGE_SESSION,
852 	STYLE_RANGE_USER
853 };
854 struct style_range {
855 	enum style_range_type	 type;
856 	u_int			 argument;
857 	char			 string[16];
858 
859 	u_int			 start;
860 	u_int			 end; /* not included */
861 
862 	TAILQ_ENTRY(style_range) entry;
863 };
864 TAILQ_HEAD(style_ranges, style_range);
865 
866 /* Style default. */
867 enum style_default_type {
868 	STYLE_DEFAULT_BASE,
869 	STYLE_DEFAULT_PUSH,
870 	STYLE_DEFAULT_POP
871 };
872 
873 /* Style option. */
874 struct style {
875 	struct grid_cell	gc;
876 	int			ignore;
877 
878 	int			fill;
879 	enum style_align	align;
880 	enum style_list		list;
881 
882 	enum style_range_type	range_type;
883 	u_int			range_argument;
884 	char			range_string[16];
885 
886 	enum style_default_type	default_type;
887 };
888 
889 /* Cursor style. */
890 enum screen_cursor_style {
891 	SCREEN_CURSOR_DEFAULT,
892 	SCREEN_CURSOR_BLOCK,
893 	SCREEN_CURSOR_UNDERLINE,
894 	SCREEN_CURSOR_BAR
895 };
896 
897 /* Virtual screen. */
898 struct screen_sel;
899 struct screen_titles;
900 struct screen {
901 	char				*title;
902 	char *path;
903 	struct screen_titles		*titles;
904 
905 	struct grid			*grid;	  /* grid data */
906 
907 	u_int				 cx;	  /* cursor x */
908 	u_int				 cy;	  /* cursor y */
909 
910 	enum screen_cursor_style	 cstyle;  /* cursor style */
911 	enum screen_cursor_style	 default_cstyle;
912 	int				 ccolour; /* cursor colour */
913 	int				 default_ccolour;
914 
915 	u_int				 rupper;  /* scroll region top */
916 	u_int				 rlower;  /* scroll region bottom */
917 
918 	int				 mode;
919 	int				 default_mode;
920 
921 	u_int				 saved_cx;
922 	u_int				 saved_cy;
923 	struct grid			*saved_grid;
924 	struct grid_cell		 saved_cell;
925 	int				 saved_flags;
926 
927 	bitstr_t			*tabs;
928 	struct screen_sel		*sel;
929 
930 	struct screen_write_cline	*write_list;
931 
932 	struct hyperlinks		*hyperlinks;
933 };
934 
935 /* Screen write context. */
936 typedef void (*screen_write_init_ctx_cb)(struct screen_write_ctx *,
937     struct tty_ctx *);
938 struct screen_write_ctx {
939 	struct window_pane		*wp;
940 	struct screen			*s;
941 
942 	int				 flags;
943 #define SCREEN_WRITE_SYNC 0x1
944 
945 	screen_write_init_ctx_cb	 init_ctx_cb;
946 	void				*arg;
947 
948 	struct screen_write_citem	*item;
949 	u_int				 scrolled;
950 	u_int				 bg;
951 };
952 
953 /* Box border lines option. */
954 enum box_lines {
955 	BOX_LINES_DEFAULT = -1,
956 	BOX_LINES_SINGLE,
957 	BOX_LINES_DOUBLE,
958 	BOX_LINES_HEAVY,
959 	BOX_LINES_SIMPLE,
960 	BOX_LINES_ROUNDED,
961 	BOX_LINES_PADDED,
962 	BOX_LINES_NONE
963 };
964 
965 /* Pane border lines option. */
966 enum pane_lines {
967 	PANE_LINES_SINGLE,
968 	PANE_LINES_DOUBLE,
969 	PANE_LINES_HEAVY,
970 	PANE_LINES_SIMPLE,
971 	PANE_LINES_NUMBER
972 };
973 
974 /* Pane border indicator option. */
975 #define PANE_BORDER_OFF 0
976 #define PANE_BORDER_COLOUR 1
977 #define PANE_BORDER_ARROWS 2
978 #define PANE_BORDER_BOTH 3
979 
980 /* Mode returned by window_pane_mode function. */
981 #define WINDOW_PANE_NO_MODE 0
982 #define WINDOW_PANE_COPY_MODE 1
983 #define WINDOW_PANE_VIEW_MODE 2
984 
985 /* Screen redraw context. */
986 struct screen_redraw_ctx {
987 	struct client	*c;
988 
989 	u_int		 statuslines;
990 	int		 statustop;
991 
992 	int		 pane_status;
993 	enum pane_lines	 pane_lines;
994 
995 	int		 pane_scrollbars;
996 	int		 pane_scrollbars_pos;
997 
998 	struct grid_cell no_pane_gc;
999 	int		 no_pane_gc_set;
1000 
1001 	u_int		 sx;
1002 	u_int		 sy;
1003 	u_int		 ox;
1004 	u_int		 oy;
1005 };
1006 
1007 /* Screen size. */
1008 #define screen_size_x(s) ((s)->grid->sx)
1009 #define screen_size_y(s) ((s)->grid->sy)
1010 #define screen_hsize(s) ((s)->grid->hsize)
1011 #define screen_hlimit(s) ((s)->grid->hlimit)
1012 
1013 /* Menu. */
1014 struct menu_item {
1015 	const char	*name;
1016 	key_code	 key;
1017 	const char	*command;
1018 };
1019 struct menu {
1020 	const char		*title;
1021 	struct menu_item	*items;
1022 	u_int			 count;
1023 	u_int			 width;
1024 };
1025 typedef void (*menu_choice_cb)(struct menu *, u_int, key_code, void *);
1026 
1027 /*
1028  * Window mode. Windows can be in several modes and this is used to call the
1029  * right function to handle input and output.
1030  */
1031 struct window_mode_entry;
1032 struct window_mode {
1033 	const char	*name;
1034 	const char	*default_format;
1035 
1036 	struct screen	*(*init)(struct window_mode_entry *,
1037 			     struct cmd_find_state *, struct args *);
1038 	void		 (*free)(struct window_mode_entry *);
1039 	void		 (*resize)(struct window_mode_entry *, u_int, u_int);
1040 	void		 (*update)(struct window_mode_entry *);
1041 	void		 (*key)(struct window_mode_entry *, struct client *,
1042 			     struct session *, struct winlink *, key_code,
1043 			     struct mouse_event *);
1044 
1045 	const char	*(*key_table)(struct window_mode_entry *);
1046 	void		 (*command)(struct window_mode_entry *, struct client *,
1047 			     struct session *, struct winlink *, struct args *,
1048 			     struct mouse_event *);
1049 	void		 (*formats)(struct window_mode_entry *,
1050 			     struct format_tree *);
1051 };
1052 
1053 /* Active window mode. */
1054 struct window_mode_entry {
1055 	struct window_pane		*wp;
1056 	struct window_pane		*swp;
1057 
1058 	const struct window_mode	*mode;
1059 	void				*data;
1060 
1061 	struct screen			*screen;
1062 	u_int				 prefix;
1063 
1064 	TAILQ_ENTRY(window_mode_entry)	 entry;
1065 };
1066 
1067 /* Offsets into pane buffer. */
1068 struct window_pane_offset {
1069 	size_t	used;
1070 };
1071 
1072 /* Queued pane resize. */
1073 struct window_pane_resize {
1074 	u_int				sx;
1075 	u_int				sy;
1076 
1077 	u_int				osx;
1078 	u_int				osy;
1079 
1080 	TAILQ_ENTRY(window_pane_resize)	entry;
1081 };
1082 TAILQ_HEAD(window_pane_resizes, window_pane_resize);
1083 
1084 /* Child window structure. */
1085 struct window_pane {
1086 	u_int		 id;
1087 	u_int		 active_point;
1088 
1089 	struct window	*window;
1090 	struct options	*options;
1091 
1092 	struct layout_cell *layout_cell;
1093 	struct layout_cell *saved_layout_cell;
1094 
1095 	u_int		 sx;
1096 	u_int		 sy;
1097 
1098 	u_int		 xoff;
1099 	u_int		 yoff;
1100 
1101 	int		 flags;
1102 #define PANE_REDRAW 0x1
1103 #define PANE_DROP 0x2
1104 #define PANE_FOCUSED 0x4
1105 #define PANE_VISITED 0x8
1106 /* 0x10 unused */
1107 /* 0x20 unused */
1108 #define PANE_INPUTOFF 0x40
1109 #define PANE_CHANGED 0x80
1110 #define PANE_EXITED 0x100
1111 #define PANE_STATUSREADY 0x200
1112 #define PANE_STATUSDRAWN 0x400
1113 #define PANE_EMPTY 0x800
1114 #define PANE_STYLECHANGED 0x1000
1115 #define PANE_UNSEENCHANGES 0x2000
1116 #define PANE_REDRAWSCROLLBAR 0x4000
1117 
1118 	u_int		 sb_slider_y;
1119 	u_int		 sb_slider_h;
1120 
1121 	int		 argc;
1122 	char	       **argv;
1123 	char		*shell;
1124 	char		*cwd;
1125 
1126 	pid_t		 pid;
1127 	char		 tty[TTY_NAME_MAX];
1128 	int		 status;
1129 	struct timeval	 dead_time;
1130 
1131 	int		 fd;
1132 	struct bufferevent *event;
1133 
1134 	struct window_pane_offset offset;
1135 	size_t		 base_offset;
1136 
1137 	struct window_pane_resizes resize_queue;
1138 	struct event	 resize_timer;
1139 
1140 	struct input_ctx *ictx;
1141 
1142 	struct grid_cell cached_gc;
1143 	struct grid_cell cached_active_gc;
1144 	struct colour_palette palette;
1145 
1146 	int		 pipe_fd;
1147 	struct bufferevent *pipe_event;
1148 	struct window_pane_offset pipe_offset;
1149 
1150 	struct screen	*screen;
1151 	struct screen	 base;
1152 
1153 	struct screen	 status_screen;
1154 	size_t		 status_size;
1155 
1156 	TAILQ_HEAD(, window_mode_entry) modes;
1157 
1158 	char		*searchstr;
1159 	int		 searchregex;
1160 
1161 	int		 border_gc_set;
1162 	struct grid_cell border_gc;
1163 
1164 	int		 control_bg;
1165 	int		 control_fg;
1166 
1167 	TAILQ_ENTRY(window_pane) entry;  /* link in list of all panes */
1168 	TAILQ_ENTRY(window_pane) sentry; /* link in list of last visited */
1169 	RB_ENTRY(window_pane) tree_entry;
1170 };
1171 TAILQ_HEAD(window_panes, window_pane);
1172 RB_HEAD(window_pane_tree, window_pane);
1173 
1174 /* Window structure. */
1175 struct window {
1176 	u_int			 id;
1177 	void			*latest;
1178 
1179 	char			*name;
1180 	struct event		 name_event;
1181 	struct timeval		 name_time;
1182 
1183 	struct event		 alerts_timer;
1184 	struct event		 offset_timer;
1185 
1186 	struct timeval		 activity_time;
1187 
1188 	struct window_pane	*active;
1189 	struct window_panes 	 last_panes;
1190 	struct window_panes	 panes;
1191 
1192 	int			 lastlayout;
1193 	struct layout_cell	*layout_root;
1194 	struct layout_cell	*saved_layout_root;
1195 	char			*old_layout;
1196 
1197 	u_int			 sx;
1198 	u_int			 sy;
1199 	u_int			 manual_sx;
1200 	u_int			 manual_sy;
1201 	u_int			 xpixel;
1202 	u_int			 ypixel;
1203 
1204 	u_int			 new_sx;
1205 	u_int			 new_sy;
1206 	u_int			 new_xpixel;
1207 	u_int			 new_ypixel;
1208 
1209 	struct utf8_data	*fill_character;
1210 	int			 flags;
1211 #define WINDOW_BELL 0x1
1212 #define WINDOW_ACTIVITY 0x2
1213 #define WINDOW_SILENCE 0x4
1214 #define WINDOW_ZOOMED 0x8
1215 #define WINDOW_WASZOOMED 0x10
1216 #define WINDOW_RESIZE 0x20
1217 #define WINDOW_ALERTFLAGS (WINDOW_BELL|WINDOW_ACTIVITY|WINDOW_SILENCE)
1218 
1219 	int			 alerts_queued;
1220 	TAILQ_ENTRY(window)	 alerts_entry;
1221 
1222 	struct options		*options;
1223 
1224 	u_int			 references;
1225 	TAILQ_HEAD(, winlink)	 winlinks;
1226 
1227 	RB_ENTRY(window)	 entry;
1228 };
1229 RB_HEAD(windows, window);
1230 
1231 /* Entry on local window list. */
1232 struct winlink {
1233 	int		 idx;
1234 	struct session	*session;
1235 	struct window	*window;
1236 
1237 	int		 flags;
1238 #define WINLINK_BELL 0x1
1239 #define WINLINK_ACTIVITY 0x2
1240 #define WINLINK_SILENCE 0x4
1241 #define WINLINK_ALERTFLAGS (WINLINK_BELL|WINLINK_ACTIVITY|WINLINK_SILENCE)
1242 #define WINLINK_VISITED 0x8
1243 
1244 	RB_ENTRY(winlink) entry;
1245 	TAILQ_ENTRY(winlink) wentry;
1246 	TAILQ_ENTRY(winlink) sentry;
1247 };
1248 RB_HEAD(winlinks, winlink);
1249 TAILQ_HEAD(winlink_stack, winlink);
1250 
1251 /* Window size option. */
1252 #define WINDOW_SIZE_LARGEST 0
1253 #define WINDOW_SIZE_SMALLEST 1
1254 #define WINDOW_SIZE_MANUAL 2
1255 #define WINDOW_SIZE_LATEST 3
1256 
1257 /* Pane border status option. */
1258 #define PANE_STATUS_OFF 0
1259 #define PANE_STATUS_TOP 1
1260 #define PANE_STATUS_BOTTOM 2
1261 
1262 /* Pane scrollbars option. */
1263 #define PANE_SCROLLBARS_OFF 0
1264 #define PANE_SCROLLBARS_MODAL 1
1265 #define PANE_SCROLLBARS_ALWAYS 2
1266 
1267 /* Pane scrollbars position option. */
1268 #define PANE_SCROLLBARS_RIGHT 0
1269 #define PANE_SCROLLBARS_LEFT 1
1270 
1271 /* Pane scrollbars width and padding. */
1272 #define PANE_SCROLLBARS_WIDTH 1
1273 #define PANE_SCROLLBARS_PADDING 0
1274 
1275 /* Layout direction. */
1276 enum layout_type {
1277 	LAYOUT_LEFTRIGHT,
1278 	LAYOUT_TOPBOTTOM,
1279 	LAYOUT_WINDOWPANE
1280 };
1281 
1282 /* Layout cells queue. */
1283 TAILQ_HEAD(layout_cells, layout_cell);
1284 
1285 /* Layout cell. */
1286 struct layout_cell {
1287 	enum layout_type type;
1288 
1289 	struct layout_cell *parent;
1290 
1291 	u_int		 sx;
1292 	u_int		 sy;
1293 
1294 	u_int		 xoff;
1295 	u_int		 yoff;
1296 
1297 	struct window_pane *wp;
1298 	struct layout_cells cells;
1299 
1300 	TAILQ_ENTRY(layout_cell) entry;
1301 };
1302 
1303 /* Environment variable. */
1304 struct environ_entry {
1305 	char		*name;
1306 	char		*value;
1307 
1308 	int		 flags;
1309 #define ENVIRON_HIDDEN 0x1
1310 
1311 	RB_ENTRY(environ_entry) entry;
1312 };
1313 
1314 /* Client session. */
1315 struct session_group {
1316 	const char		*name;
1317 	TAILQ_HEAD(, session)	 sessions;
1318 
1319 	RB_ENTRY(session_group)	 entry;
1320 };
1321 RB_HEAD(session_groups, session_group);
1322 
1323 struct session {
1324 	u_int		 id;
1325 
1326 	char		*name;
1327 	const char	*cwd;
1328 
1329 	struct timeval	 creation_time;
1330 	struct timeval	 last_attached_time;
1331 	struct timeval	 activity_time;
1332 	struct timeval	 last_activity_time;
1333 
1334 	struct event	 lock_timer;
1335 
1336 	struct winlink	*curw;
1337 	struct winlink_stack lastw;
1338 	struct winlinks	 windows;
1339 
1340 	int		 statusat;
1341 	u_int		 statuslines;
1342 
1343 	struct options	*options;
1344 
1345 #define SESSION_ALERTED 0x1
1346 	int		 flags;
1347 
1348 	u_int		 attached;
1349 
1350 	struct termios	*tio;
1351 
1352 	struct environ	*environ;
1353 
1354 	int		 references;
1355 
1356 	TAILQ_ENTRY(session) gentry;
1357 	RB_ENTRY(session)    entry;
1358 };
1359 RB_HEAD(sessions, session);
1360 
1361 /* Mouse button masks. */
1362 #define MOUSE_MASK_BUTTONS 195
1363 #define MOUSE_MASK_SHIFT 4
1364 #define MOUSE_MASK_META 8
1365 #define MOUSE_MASK_CTRL 16
1366 #define MOUSE_MASK_DRAG 32
1367 #define MOUSE_MASK_MODIFIERS (MOUSE_MASK_SHIFT|MOUSE_MASK_META|MOUSE_MASK_CTRL)
1368 
1369 /* Mouse wheel type. */
1370 #define MOUSE_WHEEL_UP 64
1371 #define MOUSE_WHEEL_DOWN 65
1372 
1373 /* Mouse button type. */
1374 #define MOUSE_BUTTON_1 0
1375 #define MOUSE_BUTTON_2 1
1376 #define MOUSE_BUTTON_3 2
1377 #define MOUSE_BUTTON_6 66
1378 #define MOUSE_BUTTON_7 67
1379 #define MOUSE_BUTTON_8 128
1380 #define MOUSE_BUTTON_9 129
1381 #define MOUSE_BUTTON_10 130
1382 #define MOUSE_BUTTON_11 131
1383 
1384 /* Mouse helpers. */
1385 #define MOUSE_BUTTONS(b) ((b) & MOUSE_MASK_BUTTONS)
1386 #define MOUSE_WHEEL(b) \
1387 	(((b) & MOUSE_MASK_BUTTONS) == MOUSE_WHEEL_UP || \
1388 	 ((b) & MOUSE_MASK_BUTTONS) == MOUSE_WHEEL_DOWN)
1389 #define MOUSE_DRAG(b) ((b) & MOUSE_MASK_DRAG)
1390 #define MOUSE_RELEASE(b) (((b) & MOUSE_MASK_BUTTONS) == 3)
1391 
1392 /* Mouse input. */
1393 struct mouse_event {
1394 	int		valid;
1395 	int		ignore;
1396 
1397 	key_code	key;
1398 
1399 	int		statusat;
1400 	u_int		statuslines;
1401 
1402 	u_int		x;
1403 	u_int		y;
1404 	u_int		b;
1405 
1406 	u_int		lx;
1407 	u_int		ly;
1408 	u_int		lb;
1409 
1410 	u_int		ox;
1411 	u_int		oy;
1412 
1413 	int		s;
1414 	int		w;
1415 	int		wp;
1416 
1417 	u_int		sgr_type;
1418 	u_int		sgr_b;
1419 };
1420 
1421 /* Key event. */
1422 struct key_event {
1423 	key_code		 key;
1424 	struct mouse_event	 m;
1425 
1426 	char			*buf;
1427 	size_t			 len;
1428 };
1429 
1430 /* Terminal definition. */
1431 struct tty_term {
1432 	char		*name;
1433 	struct tty	*tty;
1434 	int		 features;
1435 
1436 	char		 acs[UCHAR_MAX + 1][2];
1437 
1438 	struct tty_code	*codes;
1439 
1440 #define TERM_256COLOURS 0x1
1441 #define TERM_NOAM 0x2
1442 #define TERM_DECSLRM 0x4
1443 #define TERM_DECFRA 0x8
1444 #define TERM_RGBCOLOURS 0x10
1445 #define TERM_VT100LIKE 0x20
1446 #define TERM_SIXEL 0x40
1447 	int		 flags;
1448 
1449 	LIST_ENTRY(tty_term) entry;
1450 };
1451 LIST_HEAD(tty_terms, tty_term);
1452 
1453 /* Client terminal. */
1454 struct tty {
1455 	struct client	*client;
1456 	struct event	 start_timer;
1457 	struct event	 clipboard_timer;
1458 	time_t		 last_requests;
1459 
1460 	u_int		 sx;
1461 	u_int		 sy;
1462 	u_int		 xpixel;
1463 	u_int		 ypixel;
1464 
1465 	u_int		 cx;
1466 	u_int		 cy;
1467 	enum screen_cursor_style cstyle;
1468 	int		 ccolour;
1469 
1470 	int		 oflag;
1471 	u_int		 oox;
1472 	u_int		 ooy;
1473 	u_int		 osx;
1474 	u_int		 osy;
1475 
1476 	int		 mode;
1477 	int              fg;
1478 	int              bg;
1479 
1480 	u_int		 rlower;
1481 	u_int		 rupper;
1482 
1483 	u_int		 rleft;
1484 	u_int		 rright;
1485 
1486 	struct event	 event_in;
1487 	struct evbuffer	*in;
1488 	struct event	 event_out;
1489 	struct evbuffer	*out;
1490 	struct event	 timer;
1491 	size_t		 discarded;
1492 
1493 	struct termios	 tio;
1494 
1495 	struct grid_cell cell;
1496 	struct grid_cell last_cell;
1497 
1498 #define TTY_NOCURSOR 0x1
1499 #define TTY_FREEZE 0x2
1500 #define TTY_TIMER 0x4
1501 #define TTY_NOBLOCK 0x8
1502 #define TTY_STARTED 0x10
1503 #define TTY_OPENED 0x20
1504 #define TTY_OSC52QUERY 0x40
1505 #define TTY_BLOCK 0x80
1506 #define TTY_HAVEDA 0x100 /* Primary DA. */
1507 #define TTY_HAVEXDA 0x200
1508 #define TTY_SYNCING 0x400
1509 #define TTY_HAVEDA2 0x800 /* Secondary DA. */
1510 #define TTY_WINSIZEQUERY 0x1000
1511 #define TTY_ALL_REQUEST_FLAGS \
1512 	(TTY_HAVEDA|TTY_HAVEDA2|TTY_HAVEXDA)
1513 	int		 flags;
1514 
1515 	struct tty_term	*term;
1516 
1517 	u_int		 mouse_last_x;
1518 	u_int		 mouse_last_y;
1519 	u_int		 mouse_last_b;
1520 	int		 mouse_drag_flag;
1521 	int		 mouse_scrolling_flag;
1522 	int		 mouse_slider_mpos;
1523 
1524 	void		(*mouse_drag_update)(struct client *,
1525 			    struct mouse_event *);
1526 	void		(*mouse_drag_release)(struct client *,
1527 			    struct mouse_event *);
1528 
1529 	struct event	 key_timer;
1530 	struct tty_key	*key_tree;
1531 };
1532 
1533 /* Terminal command context. */
1534 typedef void (*tty_ctx_redraw_cb)(const struct tty_ctx *);
1535 typedef int (*tty_ctx_set_client_cb)(struct tty_ctx *, struct client *);
1536 struct tty_ctx {
1537 	struct screen		*s;
1538 
1539 	tty_ctx_redraw_cb	 redraw_cb;
1540 	tty_ctx_set_client_cb	 set_client_cb;
1541 	void			*arg;
1542 
1543 	const struct grid_cell	*cell;
1544 	int			 wrapped;
1545 
1546 	u_int			 num;
1547 	void			*ptr;
1548 	void			*ptr2;
1549 
1550 	/*
1551 	 * Whether this command should be sent even when the pane is not
1552 	 * visible (used for a passthrough sequence when allow-passthrough is
1553 	 * "all").
1554 	 */
1555 	int			 allow_invisible_panes;
1556 
1557 	/*
1558 	 * Cursor and region position before the screen was updated - this is
1559 	 * where the command should be applied; the values in the screen have
1560 	 * already been updated.
1561 	 */
1562 	u_int			 ocx;
1563 	u_int			 ocy;
1564 
1565 	u_int			 orupper;
1566 	u_int			 orlower;
1567 
1568 	/* Target region (usually pane) offset and size. */
1569 	u_int			 xoff;
1570 	u_int			 yoff;
1571 	u_int			 rxoff;
1572 	u_int			 ryoff;
1573 	u_int			 sx;
1574 	u_int			 sy;
1575 
1576 	/* The background colour used for clearing (erasing). */
1577 	u_int			 bg;
1578 
1579 	/* The default colours and palette. */
1580 	struct grid_cell	 defaults;
1581 	struct colour_palette	*palette;
1582 
1583 	/* Containing region (usually window) offset and size. */
1584 	int			 bigger;
1585 	u_int			 wox;
1586 	u_int			 woy;
1587 	u_int			 wsx;
1588 	u_int			 wsy;
1589 };
1590 
1591 /* Saved message entry. */
1592 struct message_entry {
1593 	char				*msg;
1594 	u_int				 msg_num;
1595 	struct timeval			 msg_time;
1596 
1597 	TAILQ_ENTRY(message_entry)	 entry;
1598 };
1599 TAILQ_HEAD(message_list, message_entry);
1600 
1601 /* Argument type. */
1602 enum args_type {
1603 	ARGS_NONE,
1604 	ARGS_STRING,
1605 	ARGS_COMMANDS
1606 };
1607 
1608 /* Argument value. */
1609 struct args_value {
1610 	enum args_type		 type;
1611 	union {
1612 		char		*string;
1613 		struct cmd_list	*cmdlist;
1614 	};
1615 	char			*cached;
1616 	TAILQ_ENTRY(args_value)	 entry;
1617 };
1618 
1619 /* Arguments set. */
1620 struct args_entry;
1621 RB_HEAD(args_tree, args_entry);
1622 
1623 /* Arguments parsing type. */
1624 enum args_parse_type {
1625 	ARGS_PARSE_INVALID,
1626 	ARGS_PARSE_STRING,
1627 	ARGS_PARSE_COMMANDS_OR_STRING,
1628 	ARGS_PARSE_COMMANDS
1629 };
1630 
1631 /* Arguments parsing state. */
1632 typedef enum args_parse_type (*args_parse_cb)(struct args *, u_int, char **);
1633 struct args_parse {
1634 	const char	*template;
1635 	int		 lower;
1636 	int		 upper;
1637 	args_parse_cb	 cb;
1638 };
1639 
1640 /* Command find structures. */
1641 enum cmd_find_type {
1642 	CMD_FIND_PANE,
1643 	CMD_FIND_WINDOW,
1644 	CMD_FIND_SESSION,
1645 };
1646 struct cmd_find_state {
1647 	int			 flags;
1648 	struct cmd_find_state	*current;
1649 
1650 	struct session		*s;
1651 	struct winlink		*wl;
1652 	struct window		*w;
1653 	struct window_pane	*wp;
1654 	int			 idx;
1655 };
1656 
1657 /* Command find flags. */
1658 #define CMD_FIND_PREFER_UNATTACHED 0x1
1659 #define CMD_FIND_QUIET 0x2
1660 #define CMD_FIND_WINDOW_INDEX 0x4
1661 #define CMD_FIND_DEFAULT_MARKED 0x8
1662 #define CMD_FIND_EXACT_SESSION 0x10
1663 #define CMD_FIND_EXACT_WINDOW 0x20
1664 #define CMD_FIND_CANFAIL 0x40
1665 
1666 /* List of commands. */
1667 struct cmd_list {
1668 	int		 references;
1669 	u_int		 group;
1670 	struct cmds	*list;
1671 };
1672 
1673 /* Command return values. */
1674 enum cmd_retval {
1675 	CMD_RETURN_ERROR = -1,
1676 	CMD_RETURN_NORMAL = 0,
1677 	CMD_RETURN_WAIT,
1678 	CMD_RETURN_STOP
1679 };
1680 
1681 /* Command parse result. */
1682 enum cmd_parse_status {
1683 	CMD_PARSE_ERROR,
1684 	CMD_PARSE_SUCCESS
1685 };
1686 struct cmd_parse_result {
1687 	enum cmd_parse_status	 status;
1688 	struct cmd_list		*cmdlist;
1689 	char			*error;
1690 };
1691 struct cmd_parse_input {
1692 	int			 flags;
1693 #define CMD_PARSE_QUIET 0x1
1694 #define CMD_PARSE_PARSEONLY 0x2
1695 #define CMD_PARSE_NOALIAS 0x4
1696 #define CMD_PARSE_VERBOSE 0x8
1697 #define CMD_PARSE_ONEGROUP 0x10
1698 
1699 	const char		*file;
1700 	u_int			 line;
1701 
1702 	struct cmdq_item	*item;
1703 	struct client		*c;
1704 	struct cmd_find_state	 fs;
1705 };
1706 
1707 /* Command queue flags. */
1708 #define CMDQ_STATE_REPEAT 0x1
1709 #define CMDQ_STATE_CONTROL 0x2
1710 #define CMDQ_STATE_NOHOOKS 0x4
1711 
1712 /* Command queue callback. */
1713 typedef enum cmd_retval (*cmdq_cb) (struct cmdq_item *, void *);
1714 
1715 /* Command definition flag. */
1716 struct cmd_entry_flag {
1717 	char			 flag;
1718 	enum cmd_find_type	 type;
1719 	int			 flags;
1720 };
1721 
1722 /* Command definition. */
1723 struct cmd_entry {
1724 	const char		*name;
1725 	const char		*alias;
1726 
1727 	struct args_parse	 args;
1728 	const char		*usage;
1729 
1730 	struct cmd_entry_flag	 source;
1731 	struct cmd_entry_flag	 target;
1732 
1733 #define CMD_STARTSERVER 0x1
1734 #define CMD_READONLY 0x2
1735 #define CMD_AFTERHOOK 0x4
1736 #define CMD_CLIENT_CFLAG 0x8
1737 #define CMD_CLIENT_TFLAG 0x10
1738 #define CMD_CLIENT_CANFAIL 0x20
1739 	int		 flags;
1740 
1741 	enum cmd_retval	 (*exec)(struct cmd *, struct cmdq_item *);
1742 };
1743 
1744 /* Status line. */
1745 #define STATUS_LINES_LIMIT 5
1746 struct status_line_entry {
1747 	char			*expanded;
1748 	struct style_ranges	 ranges;
1749 };
1750 struct status_line {
1751 	struct event		 timer;
1752 
1753 	struct screen		 screen;
1754 	struct screen		*active;
1755 	int			 references;
1756 
1757 	struct grid_cell	 style;
1758 	struct status_line_entry entries[STATUS_LINES_LIMIT];
1759 };
1760 
1761 /* Prompt type. */
1762 #define PROMPT_NTYPES 4
1763 enum prompt_type {
1764 	PROMPT_TYPE_COMMAND,
1765 	PROMPT_TYPE_SEARCH,
1766 	PROMPT_TYPE_TARGET,
1767 	PROMPT_TYPE_WINDOW_TARGET,
1768 	PROMPT_TYPE_INVALID = 0xff
1769 };
1770 
1771 /* File in client. */
1772 typedef void (*client_file_cb) (struct client *, const char *, int, int,
1773     struct evbuffer *, void *);
1774 struct client_file {
1775 	struct client			*c;
1776 	struct tmuxpeer			*peer;
1777 	struct client_files		*tree;
1778 	int				 references;
1779 	int				 stream;
1780 
1781 	char				*path;
1782 	struct evbuffer			*buffer;
1783 	struct bufferevent		*event;
1784 
1785 	int				 fd;
1786 	int				 error;
1787 	int				 closed;
1788 
1789 	client_file_cb			 cb;
1790 	void				*data;
1791 
1792 	RB_ENTRY(client_file)		 entry;
1793 };
1794 RB_HEAD(client_files, client_file);
1795 
1796 /* Client window. */
1797 struct client_window {
1798 	u_int			 window;
1799 	struct window_pane	*pane;
1800 
1801 	u_int			 sx;
1802 	u_int			 sy;
1803 
1804 	RB_ENTRY(client_window)	 entry;
1805 };
1806 RB_HEAD(client_windows, client_window);
1807 
1808 /* Visible areas not obstructed by overlays. */
1809 #define OVERLAY_MAX_RANGES 3
1810 struct overlay_ranges {
1811 	u_int	px[OVERLAY_MAX_RANGES];
1812 	u_int	nx[OVERLAY_MAX_RANGES];
1813 };
1814 
1815 /* Client connection. */
1816 typedef int (*prompt_input_cb)(struct client *, void *, const char *, int);
1817 typedef void (*prompt_free_cb)(void *);
1818 typedef void (*overlay_check_cb)(struct client*, void *, u_int, u_int, u_int,
1819 	    struct overlay_ranges *);
1820 typedef struct screen *(*overlay_mode_cb)(struct client *, void *, u_int *,
1821 	    u_int *);
1822 typedef void (*overlay_draw_cb)(struct client *, void *,
1823 	    struct screen_redraw_ctx *);
1824 typedef int (*overlay_key_cb)(struct client *, void *, struct key_event *);
1825 typedef void (*overlay_free_cb)(struct client *, void *);
1826 typedef void (*overlay_resize_cb)(struct client *, void *);
1827 struct client {
1828 	const char		*name;
1829 	struct tmuxpeer		*peer;
1830 	struct cmdq_list	*queue;
1831 
1832 	struct client_windows	 windows;
1833 
1834 	struct control_state	*control_state;
1835 	u_int			 pause_age;
1836 
1837 	pid_t			 pid;
1838 	int			 fd;
1839 	int			 out_fd;
1840 	struct event		 event;
1841 	int			 retval;
1842 
1843 	struct timeval		 creation_time;
1844 	struct timeval		 activity_time;
1845 	struct timeval	 	 last_activity_time;
1846 
1847 	struct environ		*environ;
1848 	struct format_job_tree	*jobs;
1849 
1850 	char			*title;
1851 	char			*path;
1852 	const char		*cwd;
1853 
1854 	char			*term_name;
1855 	int			 term_features;
1856 	char			*term_type;
1857 	char		       **term_caps;
1858 	u_int			 term_ncaps;
1859 
1860 	char			*ttyname;
1861 	struct tty		 tty;
1862 
1863 	size_t			 written;
1864 	size_t			 discarded;
1865 	size_t			 redraw;
1866 
1867 	struct event		 repeat_timer;
1868 
1869 	struct event		 click_timer;
1870 	u_int			 click_button;
1871 	struct mouse_event	 click_event;
1872 
1873 	struct status_line	 status;
1874 
1875 #define CLIENT_TERMINAL 0x1
1876 #define CLIENT_LOGIN 0x2
1877 #define CLIENT_EXIT 0x4
1878 #define CLIENT_REDRAWWINDOW 0x8
1879 #define CLIENT_REDRAWSTATUS 0x10
1880 #define CLIENT_REPEAT 0x20
1881 #define CLIENT_SUSPENDED 0x40
1882 #define CLIENT_ATTACHED 0x80
1883 #define CLIENT_EXITED 0x100
1884 #define CLIENT_DEAD 0x200
1885 #define CLIENT_REDRAWBORDERS 0x400
1886 #define CLIENT_READONLY 0x800
1887 #define CLIENT_NOSTARTSERVER 0x1000
1888 #define CLIENT_CONTROL 0x2000
1889 #define CLIENT_CONTROLCONTROL 0x4000
1890 #define CLIENT_FOCUSED 0x8000
1891 #define CLIENT_UTF8 0x10000
1892 #define CLIENT_IGNORESIZE 0x20000
1893 #define CLIENT_IDENTIFIED 0x40000
1894 #define CLIENT_STATUSFORCE 0x80000
1895 #define CLIENT_DOUBLECLICK 0x100000
1896 #define CLIENT_TRIPLECLICK 0x200000
1897 #define CLIENT_SIZECHANGED 0x400000
1898 #define CLIENT_STATUSOFF 0x800000
1899 #define CLIENT_REDRAWSTATUSALWAYS 0x1000000
1900 #define CLIENT_REDRAWOVERLAY 0x2000000
1901 #define CLIENT_CONTROL_NOOUTPUT 0x4000000
1902 #define CLIENT_DEFAULTSOCKET 0x8000000
1903 #define CLIENT_STARTSERVER 0x10000000
1904 #define CLIENT_REDRAWPANES 0x20000000
1905 #define CLIENT_NOFORK 0x40000000
1906 #define CLIENT_ACTIVEPANE 0x80000000ULL
1907 #define CLIENT_CONTROL_PAUSEAFTER 0x100000000ULL
1908 #define CLIENT_CONTROL_WAITEXIT 0x200000000ULL
1909 #define CLIENT_WINDOWSIZECHANGED 0x400000000ULL
1910 #define CLIENT_CLIPBOARDBUFFER 0x800000000ULL
1911 #define CLIENT_BRACKETPASTING 0x1000000000ULL
1912 #define CLIENT_ASSUMEPASTING 0x2000000000ULL
1913 #define CLIENT_REDRAWSCROLLBARS 0x4000000000ULL
1914 #define CLIENT_ALLREDRAWFLAGS		\
1915 	(CLIENT_REDRAWWINDOW|		\
1916 	 CLIENT_REDRAWSTATUS|		\
1917 	 CLIENT_REDRAWSTATUSALWAYS|	\
1918 	 CLIENT_REDRAWBORDERS|		\
1919 	 CLIENT_REDRAWOVERLAY|		\
1920 	 CLIENT_REDRAWPANES|		\
1921 	 CLIENT_REDRAWSCROLLBARS)
1922 #define CLIENT_UNATTACHEDFLAGS	\
1923 	(CLIENT_DEAD|		\
1924 	 CLIENT_SUSPENDED|	\
1925 	 CLIENT_EXIT)
1926 #define CLIENT_NODETACHFLAGS	\
1927 	(CLIENT_DEAD|		\
1928 	 CLIENT_EXIT)
1929 #define CLIENT_NOSIZEFLAGS	\
1930 	(CLIENT_DEAD|		\
1931 	 CLIENT_SUSPENDED|	\
1932 	 CLIENT_EXIT)
1933 	uint64_t		 flags;
1934 
1935 	enum {
1936 		CLIENT_EXIT_RETURN,
1937 		CLIENT_EXIT_SHUTDOWN,
1938 		CLIENT_EXIT_DETACH
1939 	}			 exit_type;
1940 	enum msgtype		 exit_msgtype;
1941 	char			*exit_session;
1942 	char			*exit_message;
1943 
1944 	struct key_table	*keytable;
1945 	key_code		 last_key;
1946 
1947 	uint64_t		 redraw_panes;
1948 	uint64_t		 redraw_scrollbars;
1949 
1950 	int			 message_ignore_keys;
1951 	int			 message_ignore_styles;
1952 	char			*message_string;
1953 	struct event		 message_timer;
1954 
1955 	char			*prompt_string;
1956 	struct utf8_data	*prompt_buffer;
1957 	char			*prompt_last;
1958 	size_t			 prompt_index;
1959 	prompt_input_cb		 prompt_inputcb;
1960 	prompt_free_cb		 prompt_freecb;
1961 	void			*prompt_data;
1962 	u_int			 prompt_hindex[PROMPT_NTYPES];
1963 	enum {
1964 		PROMPT_ENTRY,
1965 		PROMPT_COMMAND
1966 	}			 prompt_mode;
1967 	struct utf8_data	*prompt_saved;
1968 #define PROMPT_SINGLE 0x1
1969 #define PROMPT_NUMERIC 0x2
1970 #define PROMPT_INCREMENTAL 0x4
1971 #define PROMPT_NOFORMAT 0x8
1972 #define PROMPT_KEY 0x10
1973 #define PROMPT_ACCEPT 0x20
1974 #define PROMPT_QUOTENEXT 0x40
1975 	int			 prompt_flags;
1976 	enum prompt_type	 prompt_type;
1977 	int			 prompt_cursor;
1978 
1979 	struct session		*session;
1980 	struct session		*last_session;
1981 
1982 	int			 references;
1983 
1984 	void			*pan_window;
1985 	u_int			 pan_ox;
1986 	u_int			 pan_oy;
1987 
1988 	overlay_check_cb	 overlay_check;
1989 	overlay_mode_cb		 overlay_mode;
1990 	overlay_draw_cb		 overlay_draw;
1991 	overlay_key_cb		 overlay_key;
1992 	overlay_free_cb		 overlay_free;
1993 	overlay_resize_cb	 overlay_resize;
1994 	void			*overlay_data;
1995 	struct event		 overlay_timer;
1996 
1997 	struct client_files	 files;
1998 
1999 	u_int			*clipboard_panes;
2000 	u_int			 clipboard_npanes;
2001 
2002 	TAILQ_ENTRY(client)	 entry;
2003 };
2004 TAILQ_HEAD(clients, client);
2005 
2006 /* Control mode subscription type. */
2007 enum control_sub_type {
2008 	CONTROL_SUB_SESSION,
2009 	CONTROL_SUB_PANE,
2010 	CONTROL_SUB_ALL_PANES,
2011 	CONTROL_SUB_WINDOW,
2012 	CONTROL_SUB_ALL_WINDOWS
2013 };
2014 
2015 /* Key binding and key table. */
2016 struct key_binding {
2017 	key_code		 key;
2018 	struct cmd_list		*cmdlist;
2019 	const char		*note;
2020 
2021 	int			 flags;
2022 #define KEY_BINDING_REPEAT 0x1
2023 
2024 	RB_ENTRY(key_binding)	 entry;
2025 };
2026 RB_HEAD(key_bindings, key_binding);
2027 
2028 struct key_table {
2029 	const char		*name;
2030 	struct timeval		 activity_time;
2031 	struct key_bindings	 key_bindings;
2032 	struct key_bindings	 default_key_bindings;
2033 
2034 	u_int			 references;
2035 
2036 	RB_ENTRY(key_table)	 entry;
2037 };
2038 RB_HEAD(key_tables, key_table);
2039 
2040 /* Option data. */
2041 RB_HEAD(options_array, options_array_item);
2042 union options_value {
2043 	char			*string;
2044 	long long		 number;
2045 	struct style		 style;
2046 	struct options_array	 array;
2047 	struct cmd_list		*cmdlist;
2048 };
2049 
2050 /* Option table entries. */
2051 enum options_table_type {
2052 	OPTIONS_TABLE_STRING,
2053 	OPTIONS_TABLE_NUMBER,
2054 	OPTIONS_TABLE_KEY,
2055 	OPTIONS_TABLE_COLOUR,
2056 	OPTIONS_TABLE_FLAG,
2057 	OPTIONS_TABLE_CHOICE,
2058 	OPTIONS_TABLE_COMMAND
2059 };
2060 
2061 #define OPTIONS_TABLE_NONE 0
2062 #define OPTIONS_TABLE_SERVER 0x1
2063 #define OPTIONS_TABLE_SESSION 0x2
2064 #define OPTIONS_TABLE_WINDOW 0x4
2065 #define OPTIONS_TABLE_PANE 0x8
2066 
2067 #define OPTIONS_TABLE_IS_ARRAY 0x1
2068 #define OPTIONS_TABLE_IS_HOOK 0x2
2069 #define OPTIONS_TABLE_IS_STYLE 0x4
2070 
2071 struct options_table_entry {
2072 	const char		 *name;
2073 	const char		 *alternative_name;
2074 	enum options_table_type	  type;
2075 	int			  scope;
2076 	int			  flags;
2077 
2078 	u_int			  minimum;
2079 	u_int			  maximum;
2080 	const char		**choices;
2081 
2082 	const char		 *default_str;
2083 	long long		  default_num;
2084 	const char		**default_arr;
2085 
2086 	const char		 *separator;
2087 	const char		 *pattern;
2088 
2089 	const char		 *text;
2090 	const char		 *unit;
2091 };
2092 
2093 struct options_name_map {
2094 	const char		*from;
2095 	const char		*to;
2096 };
2097 
2098 /* Common command usages. */
2099 #define CMD_TARGET_PANE_USAGE "[-t target-pane]"
2100 #define CMD_TARGET_WINDOW_USAGE "[-t target-window]"
2101 #define CMD_TARGET_SESSION_USAGE "[-t target-session]"
2102 #define CMD_TARGET_CLIENT_USAGE "[-t target-client]"
2103 #define CMD_SRCDST_PANE_USAGE "[-s src-pane] [-t dst-pane]"
2104 #define CMD_SRCDST_WINDOW_USAGE "[-s src-window] [-t dst-window]"
2105 #define CMD_SRCDST_SESSION_USAGE "[-s src-session] [-t dst-session]"
2106 #define CMD_SRCDST_CLIENT_USAGE "[-s src-client] [-t dst-client]"
2107 #define CMD_BUFFER_USAGE "[-b buffer-name]"
2108 
2109 /* Spawn common context. */
2110 struct spawn_context {
2111 	struct cmdq_item	 *item;
2112 
2113 	struct session		 *s;
2114 	struct winlink		 *wl;
2115 	struct client		 *tc;
2116 
2117 	struct window_pane	 *wp0;
2118 	struct layout_cell	 *lc;
2119 
2120 	const char		 *name;
2121 	char			**argv;
2122 	int			  argc;
2123 	struct environ		 *environ;
2124 
2125 	int			  idx;
2126 	const char		 *cwd;
2127 
2128 	int			  flags;
2129 #define SPAWN_KILL 0x1
2130 #define SPAWN_DETACHED 0x2
2131 #define SPAWN_RESPAWN 0x4
2132 #define SPAWN_BEFORE 0x8
2133 #define SPAWN_NONOTIFY 0x10
2134 #define SPAWN_FULLSIZE 0x20
2135 #define SPAWN_EMPTY 0x40
2136 #define SPAWN_ZOOM 0x80
2137 };
2138 
2139 /* Mode tree sort order. */
2140 struct mode_tree_sort_criteria {
2141 	u_int	field;
2142 	int	reversed;
2143 };
2144 
2145 /* tmux.c */
2146 extern struct options	*global_options;
2147 extern struct options	*global_s_options;
2148 extern struct options	*global_w_options;
2149 extern struct environ	*global_environ;
2150 extern struct timeval	 start_time;
2151 extern const char	*socket_path;
2152 extern const char	*shell_command;
2153 extern int		 ptm_fd;
2154 extern const char	*shell_command;
2155 int		 checkshell(const char *);
2156 void		 setblocking(int, int);
2157 char 		*shell_argv0(const char *, int);
2158 uint64_t	 get_timer(void);
2159 const char	*sig2name(int);
2160 const char	*find_cwd(void);
2161 const char	*find_home(void);
2162 const char	*getversion(void);
2163 
2164 /* proc.c */
2165 struct imsg;
2166 int	proc_send(struct tmuxpeer *, enum msgtype, int, const void *, size_t);
2167 struct tmuxproc *proc_start(const char *);
2168 void	proc_loop(struct tmuxproc *, int (*)(void));
2169 void	proc_exit(struct tmuxproc *);
2170 void	proc_set_signals(struct tmuxproc *, void(*)(int));
2171 void	proc_clear_signals(struct tmuxproc *, int);
2172 struct tmuxpeer *proc_add_peer(struct tmuxproc *, int,
2173 	    void (*)(struct imsg *, void *), void *);
2174 void	proc_remove_peer(struct tmuxpeer *);
2175 void	proc_kill_peer(struct tmuxpeer *);
2176 void	proc_flush_peer(struct tmuxpeer *);
2177 void	proc_toggle_log(struct tmuxproc *);
2178 pid_t	proc_fork_and_daemon(int *);
2179 uid_t	proc_get_peer_uid(struct tmuxpeer *);
2180 
2181 /* cfg.c */
2182 extern int cfg_finished;
2183 extern struct client *cfg_client;
2184 extern char **cfg_files;
2185 extern u_int cfg_nfiles;
2186 extern int cfg_quiet;
2187 void	start_cfg(void);
2188 int	load_cfg(const char *, struct client *, struct cmdq_item *,
2189             struct cmd_find_state *, int, struct cmdq_item **);
2190 int	load_cfg_from_buffer(const void *, size_t, const char *,
2191   	    struct client *, struct cmdq_item *, struct cmd_find_state *,
2192 	    int, struct cmdq_item **);
2193 void printflike(1, 2) cfg_add_cause(const char *, ...);
2194 void	cfg_print_causes(struct cmdq_item *);
2195 void	cfg_show_causes(struct session *);
2196 
2197 /* paste.c */
2198 struct paste_buffer;
2199 const char	*paste_buffer_name(struct paste_buffer *);
2200 u_int		 paste_buffer_order(struct paste_buffer *);
2201 time_t		 paste_buffer_created(struct paste_buffer *);
2202 const char	*paste_buffer_data(struct paste_buffer *, size_t *);
2203 struct paste_buffer *paste_walk(struct paste_buffer *);
2204 int		 paste_is_empty(void);
2205 struct paste_buffer *paste_get_top(const char **);
2206 struct paste_buffer *paste_get_name(const char *);
2207 void		 paste_free(struct paste_buffer *);
2208 void		 paste_add(const char *, char *, size_t);
2209 int		 paste_rename(const char *, const char *, char **);
2210 int		 paste_set(char *, size_t, const char *, char **);
2211 void		 paste_replace(struct paste_buffer *, char *, size_t);
2212 char		*paste_make_sample(struct paste_buffer *);
2213 
2214 /* format.c */
2215 #define FORMAT_STATUS 0x1
2216 #define FORMAT_FORCE 0x2
2217 #define FORMAT_NOJOBS 0x4
2218 #define FORMAT_VERBOSE 0x8
2219 #define FORMAT_NONE 0
2220 #define FORMAT_PANE 0x80000000U
2221 #define FORMAT_WINDOW 0x40000000U
2222 struct format_tree;
2223 struct format_modifier;
2224 typedef void *(*format_cb)(struct format_tree *);
2225 void		 format_tidy_jobs(void);
2226 const char	*format_skip(const char *, const char *);
2227 int		 format_true(const char *);
2228 struct format_tree *format_create(struct client *, struct cmdq_item *, int,
2229 		     int);
2230 void		 format_free(struct format_tree *);
2231 void		 format_merge(struct format_tree *, struct format_tree *);
2232 struct window_pane *format_get_pane(struct format_tree *);
2233 void printflike(3, 4) format_add(struct format_tree *, const char *,
2234 		     const char *, ...);
2235 void		 format_add_tv(struct format_tree *, const char *,
2236 		     struct timeval *);
2237 void		 format_add_cb(struct format_tree *, const char *, format_cb);
2238 void		 format_log_debug(struct format_tree *, const char *);
2239 void		 format_each(struct format_tree *, void (*)(const char *,
2240 		     const char *, void *), void *);
2241 char		*format_pretty_time(time_t, int);
2242 char		*format_expand_time(struct format_tree *, const char *);
2243 char		*format_expand(struct format_tree *, const char *);
2244 char		*format_single(struct cmdq_item *, const char *,
2245 		     struct client *, struct session *, struct winlink *,
2246 		     struct window_pane *);
2247 char		*format_single_from_state(struct cmdq_item *, const char *,
2248 		    struct client *, struct cmd_find_state *);
2249 char		*format_single_from_target(struct cmdq_item *, const char *);
2250 struct format_tree *format_create_defaults(struct cmdq_item *, struct client *,
2251 		     struct session *, struct winlink *, struct window_pane *);
2252 struct format_tree *format_create_from_state(struct cmdq_item *,
2253 		     struct client *, struct cmd_find_state *);
2254 struct format_tree *format_create_from_target(struct cmdq_item *);
2255 void		 format_defaults(struct format_tree *, struct client *,
2256 		     struct session *, struct winlink *, struct window_pane *);
2257 void		 format_defaults_window(struct format_tree *, struct window *);
2258 void		 format_defaults_pane(struct format_tree *,
2259 		     struct window_pane *);
2260 void		 format_defaults_paste_buffer(struct format_tree *,
2261 		     struct paste_buffer *);
2262 void		 format_lost_client(struct client *);
2263 char		*format_grid_word(struct grid *, u_int, u_int);
2264 char		*format_grid_hyperlink(struct grid *, u_int, u_int,
2265 		     struct screen *);
2266 char		*format_grid_line(struct grid *, u_int);
2267 
2268 /* format-draw.c */
2269 void		 format_draw(struct screen_write_ctx *,
2270 		     const struct grid_cell *, u_int, const char *,
2271 		     struct style_ranges *, int);
2272 u_int		 format_width(const char *);
2273 char		*format_trim_left(const char *, u_int);
2274 char		*format_trim_right(const char *, u_int);
2275 
2276 /* notify.c */
2277 void	notify_hook(struct cmdq_item *, const char *);
2278 void	notify_client(const char *, struct client *);
2279 void	notify_session(const char *, struct session *);
2280 void	notify_winlink(const char *, struct winlink *);
2281 void	notify_session_window(const char *, struct session *, struct window *);
2282 void	notify_window(const char *, struct window *);
2283 void	notify_pane(const char *, struct window_pane *);
2284 void	notify_paste_buffer(const char *, int);
2285 
2286 /* options.c */
2287 struct options	*options_create(struct options *);
2288 void		 options_free(struct options *);
2289 struct options	*options_get_parent(struct options *);
2290 void		 options_set_parent(struct options *, struct options *);
2291 struct options_entry *options_first(struct options *);
2292 struct options_entry *options_next(struct options_entry *);
2293 struct options_entry *options_empty(struct options *,
2294 		     const struct options_table_entry *);
2295 struct options_entry *options_default(struct options *,
2296 		     const struct options_table_entry *);
2297 char		*options_default_to_string(const struct options_table_entry *);
2298 const char	*options_name(struct options_entry *);
2299 struct options	*options_owner(struct options_entry *);
2300 const struct options_table_entry *options_table_entry(struct options_entry *);
2301 struct options_entry *options_get_only(struct options *, const char *);
2302 struct options_entry *options_get(struct options *, const char *);
2303 void		 options_array_clear(struct options_entry *);
2304 union options_value *options_array_get(struct options_entry *, u_int);
2305 int		 options_array_set(struct options_entry *, u_int, const char *,
2306 		     int, char **);
2307 int		 options_array_assign(struct options_entry *, const char *,
2308 		     char **);
2309 struct options_array_item *options_array_first(struct options_entry *);
2310 struct options_array_item *options_array_next(struct options_array_item *);
2311 u_int		 options_array_item_index(struct options_array_item *);
2312 union options_value *options_array_item_value(struct options_array_item *);
2313 int		 options_is_array(struct options_entry *);
2314 int		 options_is_string(struct options_entry *);
2315 char		*options_to_string(struct options_entry *, int, int);
2316 char		*options_parse(const char *, int *);
2317 struct options_entry *options_parse_get(struct options *, const char *, int *,
2318 		     int);
2319 char		*options_match(const char *, int *, int *);
2320 struct options_entry *options_match_get(struct options *, const char *, int *,
2321 		     int, int *);
2322 const char	*options_get_string(struct options *, const char *);
2323 long long	 options_get_number(struct options *, const char *);
2324 struct options_entry * printflike(4, 5) options_set_string(struct options *,
2325 		     const char *, int, const char *, ...);
2326 struct options_entry *options_set_number(struct options *, const char *,
2327 		     long long);
2328 int		 options_scope_from_name(struct args *, int,
2329 		     const char *, struct cmd_find_state *, struct options **,
2330 		     char **);
2331 int		 options_scope_from_flags(struct args *, int,
2332 		     struct cmd_find_state *, struct options **, char **);
2333 struct style	*options_string_to_style(struct options *, const char *,
2334 		     struct format_tree *);
2335 int		 options_from_string(struct options *,
2336 		     const struct options_table_entry *, const char *,
2337 		     const char *, int, char **);
2338 int	 	 options_find_choice(const struct options_table_entry *,
2339 		     const char *, char **);
2340 void		 options_push_changes(const char *);
2341 int		 options_remove_or_default(struct options_entry *, int,
2342 		     char **);
2343 
2344 /* options-table.c */
2345 extern const struct options_table_entry	options_table[];
2346 extern const struct options_name_map	options_other_names[];
2347 
2348 /* job.c */
2349 typedef void (*job_update_cb) (struct job *);
2350 typedef void (*job_complete_cb) (struct job *);
2351 typedef void (*job_free_cb) (void *);
2352 #define JOB_NOWAIT 0x1
2353 #define JOB_KEEPWRITE 0x2
2354 #define JOB_PTY 0x4
2355 #define JOB_DEFAULTSHELL 0x8
2356 struct job	*job_run(const char *, int, char **, struct environ *,
2357 		     struct session *, const char *, job_update_cb,
2358 		     job_complete_cb, job_free_cb, void *, int, int, int);
2359 void		 job_free(struct job *);
2360 int		 job_transfer(struct job *, pid_t *, char *, size_t);
2361 void		 job_resize(struct job *, u_int, u_int);
2362 void		 job_check_died(pid_t, int);
2363 int		 job_get_status(struct job *);
2364 void		*job_get_data(struct job *);
2365 struct bufferevent *job_get_event(struct job *);
2366 void		 job_kill_all(void);
2367 int		 job_still_running(void);
2368 void		 job_print_summary(struct cmdq_item *, int);
2369 
2370 /* environ.c */
2371 struct environ *environ_create(void);
2372 void	environ_free(struct environ *);
2373 struct environ_entry *environ_first(struct environ *);
2374 struct environ_entry *environ_next(struct environ_entry *);
2375 void	environ_copy(struct environ *, struct environ *);
2376 struct environ_entry *environ_find(struct environ *, const char *);
2377 void printflike(4, 5) environ_set(struct environ *, const char *, int,
2378 	    const char *, ...);
2379 void	environ_clear(struct environ *, const char *);
2380 void	environ_put(struct environ *, const char *, int);
2381 void	environ_unset(struct environ *, const char *);
2382 void	environ_update(struct options *, struct environ *, struct environ *);
2383 void	environ_push(struct environ *);
2384 void printflike(2, 3) environ_log(struct environ *, const char *, ...);
2385 struct environ *environ_for_session(struct session *, int);
2386 
2387 /* tty.c */
2388 void	tty_create_log(void);
2389 int	tty_window_bigger(struct tty *);
2390 int	tty_window_offset(struct tty *, u_int *, u_int *, u_int *, u_int *);
2391 void	tty_update_window_offset(struct window *);
2392 void	tty_update_client_offset(struct client *);
2393 void	tty_raw(struct tty *, const char *);
2394 void	tty_attributes(struct tty *, const struct grid_cell *,
2395 	    const struct grid_cell *, struct colour_palette *,
2396 	    struct hyperlinks *);
2397 void	tty_reset(struct tty *);
2398 void	tty_region_off(struct tty *);
2399 void	tty_margin_off(struct tty *);
2400 void	tty_cursor(struct tty *, u_int, u_int);
2401 void	tty_clipboard_query(struct tty *);
2402 void	tty_putcode(struct tty *, enum tty_code_code);
2403 void	tty_putcode_i(struct tty *, enum tty_code_code, int);
2404 void	tty_putcode_ii(struct tty *, enum tty_code_code, int, int);
2405 void	tty_putcode_iii(struct tty *, enum tty_code_code, int, int, int);
2406 void	tty_putcode_s(struct tty *, enum tty_code_code, const char *);
2407 void	tty_putcode_ss(struct tty *, enum tty_code_code, const char *,
2408 	    const char *);
2409 void	tty_puts(struct tty *, const char *);
2410 void	tty_putc(struct tty *, u_char);
2411 void	tty_putn(struct tty *, const void *, size_t, u_int);
2412 void	tty_cell(struct tty *, const struct grid_cell *,
2413 	    const struct grid_cell *, struct colour_palette *,
2414 	    struct hyperlinks *);
2415 int	tty_init(struct tty *, struct client *);
2416 void	tty_resize(struct tty *);
2417 void	tty_set_size(struct tty *, u_int, u_int, u_int, u_int);
2418 void	tty_invalidate(struct tty *);
2419 void	tty_start_tty(struct tty *);
2420 void	tty_send_requests(struct tty *);
2421 void	tty_repeat_requests(struct tty *);
2422 void	tty_stop_tty(struct tty *);
2423 void	tty_set_title(struct tty *, const char *);
2424 void	tty_set_path(struct tty *, const char *);
2425 void	tty_update_mode(struct tty *, int, struct screen *);
2426 void	tty_draw_line(struct tty *, struct screen *, u_int, u_int, u_int,
2427 	    u_int, u_int, const struct grid_cell *, struct colour_palette *);
2428 void	tty_sync_start(struct tty *);
2429 void	tty_sync_end(struct tty *);
2430 int	tty_open(struct tty *, char **);
2431 void	tty_close(struct tty *);
2432 void	tty_free(struct tty *);
2433 void	tty_update_features(struct tty *);
2434 void	tty_set_selection(struct tty *, const char *, const char *, size_t);
2435 void	tty_write(void (*)(struct tty *, const struct tty_ctx *),
2436 	    struct tty_ctx *);
2437 void	tty_cmd_alignmenttest(struct tty *, const struct tty_ctx *);
2438 void	tty_cmd_cell(struct tty *, const struct tty_ctx *);
2439 void	tty_cmd_cells(struct tty *, const struct tty_ctx *);
2440 void	tty_cmd_clearendofline(struct tty *, const struct tty_ctx *);
2441 void	tty_cmd_clearendofscreen(struct tty *, const struct tty_ctx *);
2442 void	tty_cmd_clearline(struct tty *, const struct tty_ctx *);
2443 void	tty_cmd_clearscreen(struct tty *, const struct tty_ctx *);
2444 void	tty_cmd_clearstartofline(struct tty *, const struct tty_ctx *);
2445 void	tty_cmd_clearstartofscreen(struct tty *, const struct tty_ctx *);
2446 void	tty_cmd_deletecharacter(struct tty *, const struct tty_ctx *);
2447 void	tty_cmd_clearcharacter(struct tty *, const struct tty_ctx *);
2448 void	tty_cmd_deleteline(struct tty *, const struct tty_ctx *);
2449 void	tty_cmd_insertcharacter(struct tty *, const struct tty_ctx *);
2450 void	tty_cmd_insertline(struct tty *, const struct tty_ctx *);
2451 void	tty_cmd_linefeed(struct tty *, const struct tty_ctx *);
2452 void	tty_cmd_scrollup(struct tty *, const struct tty_ctx *);
2453 void	tty_cmd_scrolldown(struct tty *, const struct tty_ctx *);
2454 void	tty_cmd_reverseindex(struct tty *, const struct tty_ctx *);
2455 void	tty_cmd_setselection(struct tty *, const struct tty_ctx *);
2456 void	tty_cmd_rawstring(struct tty *, const struct tty_ctx *);
2457 void	tty_cmd_syncstart(struct tty *, const struct tty_ctx *);
2458 void	tty_default_colours(struct grid_cell *, struct window_pane *);
2459 
2460 /* tty-term.c */
2461 extern struct tty_terms tty_terms;
2462 u_int		 tty_term_ncodes(void);
2463 void		 tty_term_apply(struct tty_term *, const char *, int);
2464 void		 tty_term_apply_overrides(struct tty_term *);
2465 struct tty_term *tty_term_create(struct tty *, char *, char **, u_int, int *,
2466 		     char **);
2467 void		 tty_term_free(struct tty_term *);
2468 int		 tty_term_read_list(const char *, int, char ***, u_int *,
2469 		     char **);
2470 void		 tty_term_free_list(char **, u_int);
2471 int		 tty_term_has(struct tty_term *, enum tty_code_code);
2472 const char	*tty_term_string(struct tty_term *, enum tty_code_code);
2473 const char	*tty_term_string_i(struct tty_term *, enum tty_code_code, int);
2474 const char	*tty_term_string_ii(struct tty_term *, enum tty_code_code, int,
2475 		     int);
2476 const char	*tty_term_string_iii(struct tty_term *, enum tty_code_code, int,
2477 		     int, int);
2478 const char	*tty_term_string_s(struct tty_term *, enum tty_code_code,
2479 		     const char *);
2480 const char	*tty_term_string_ss(struct tty_term *, enum tty_code_code,
2481 		     const char *, const char *);
2482 int		 tty_term_number(struct tty_term *, enum tty_code_code);
2483 int		 tty_term_flag(struct tty_term *, enum tty_code_code);
2484 const char	*tty_term_describe(struct tty_term *, enum tty_code_code);
2485 
2486 /* tty-features.c */
2487 void		 tty_add_features(int *, const char *, const char *);
2488 const char	*tty_get_features(int);
2489 int		 tty_apply_features(struct tty_term *, int);
2490 void		 tty_default_features(int *, const char *, u_int);
2491 
2492 /* tty-acs.c */
2493 int		 tty_acs_needed(struct tty *);
2494 const char	*tty_acs_get(struct tty *, u_char);
2495 int		 tty_acs_reverse_get(struct tty *, const char *, size_t);
2496 const struct utf8_data *tty_acs_double_borders(int);
2497 const struct utf8_data *tty_acs_heavy_borders(int);
2498 const struct utf8_data *tty_acs_rounded_borders(int);
2499 
2500 /* tty-keys.c */
2501 void		tty_keys_build(struct tty *);
2502 void		tty_keys_free(struct tty *);
2503 int		tty_keys_next(struct tty *);
2504 int		tty_keys_colours(struct tty *, const char *, size_t, size_t *,
2505 		     int *, int *);
2506 
2507 /* arguments.c */
2508 void		 args_set(struct args *, u_char, struct args_value *, int);
2509 struct args 	*args_create(void);
2510 struct args	*args_parse(const struct args_parse *, struct args_value *,
2511 		     u_int, char **);
2512 struct args	*args_copy(struct args *, int, char **);
2513 void		 args_to_vector(struct args *, int *, char ***);
2514 struct args_value *args_from_vector(int, char **);
2515 void		 args_free_value(struct args_value *);
2516 void		 args_free_values(struct args_value *, u_int);
2517 void		 args_free(struct args *);
2518 char		*args_print(struct args *);
2519 char		*args_escape(const char *);
2520 int		 args_has(struct args *, u_char);
2521 const char	*args_get(struct args *, u_char);
2522 u_char		 args_first(struct args *, struct args_entry **);
2523 u_char		 args_next(struct args_entry **);
2524 u_int		 args_count(struct args *);
2525 struct args_value *args_values(struct args *);
2526 struct args_value *args_value(struct args *, u_int);
2527 const char	*args_string(struct args *, u_int);
2528 struct cmd_list	*args_make_commands_now(struct cmd *, struct cmdq_item *,
2529 		     u_int, int);
2530 struct args_command_state *args_make_commands_prepare(struct cmd *,
2531 		     struct cmdq_item *, u_int, const char *, int, int);
2532 struct cmd_list *args_make_commands(struct args_command_state *, int, char **,
2533 		     char **);
2534 void		 args_make_commands_free(struct args_command_state *);
2535 char		*args_make_commands_get_command(struct args_command_state *);
2536 struct args_value *args_first_value(struct args *, u_char);
2537 struct args_value *args_next_value(struct args_value *);
2538 long long	 args_strtonum(struct args *, u_char, long long, long long,
2539 		     char **);
2540 long long	 args_strtonum_and_expand(struct args *, u_char, long long,
2541 		     long long, struct cmdq_item *, char **);
2542 long long	 args_percentage(struct args *, u_char, long long,
2543 		     long long, long long, char **);
2544 long long	 args_string_percentage(const char *, long long, long long,
2545 		     long long, char **);
2546 long long	 args_percentage_and_expand(struct args *, u_char, long long,
2547 		     long long, long long, struct cmdq_item *, char **);
2548 long long	 args_string_percentage_and_expand(const char *, long long,
2549 		     long long, long long, struct cmdq_item *, char **);
2550 
2551 /* cmd-find.c */
2552 int		 cmd_find_target(struct cmd_find_state *, struct cmdq_item *,
2553 		     const char *, enum cmd_find_type, int);
2554 struct client	*cmd_find_best_client(struct session *);
2555 struct client	*cmd_find_client(struct cmdq_item *, const char *, int);
2556 void		 cmd_find_clear_state(struct cmd_find_state *, int);
2557 int		 cmd_find_empty_state(struct cmd_find_state *);
2558 int		 cmd_find_valid_state(struct cmd_find_state *);
2559 void		 cmd_find_copy_state(struct cmd_find_state *,
2560 		     struct cmd_find_state *);
2561 void		 cmd_find_from_session(struct cmd_find_state *,
2562 		     struct session *, int);
2563 void		 cmd_find_from_winlink(struct cmd_find_state *,
2564 		     struct winlink *, int);
2565 int		 cmd_find_from_session_window(struct cmd_find_state *,
2566 		     struct session *, struct window *, int);
2567 int		 cmd_find_from_window(struct cmd_find_state *, struct window *,
2568 		     int);
2569 void		 cmd_find_from_winlink_pane(struct cmd_find_state *,
2570 		     struct winlink *, struct window_pane *, int);
2571 int		 cmd_find_from_pane(struct cmd_find_state *,
2572 		     struct window_pane *, int);
2573 int		 cmd_find_from_client(struct cmd_find_state *, struct client *,
2574 		     int);
2575 int		 cmd_find_from_mouse(struct cmd_find_state *,
2576 		     struct mouse_event *, int);
2577 int		 cmd_find_from_nothing(struct cmd_find_state *, int);
2578 
2579 /* cmd.c */
2580 extern const struct cmd_entry *cmd_table[];
2581 void printflike(3, 4) cmd_log_argv(int, char **, const char *, ...);
2582 void		 cmd_prepend_argv(int *, char ***, const char *);
2583 void		 cmd_append_argv(int *, char ***, const char *);
2584 int		 cmd_pack_argv(int, char **, char *, size_t);
2585 int		 cmd_unpack_argv(char *, size_t, int, char ***);
2586 char	       **cmd_copy_argv(int, char **);
2587 void		 cmd_free_argv(int, char **);
2588 char		*cmd_stringify_argv(int, char **);
2589 char		*cmd_get_alias(const char *);
2590 const struct cmd_entry *cmd_get_entry(struct cmd *);
2591 struct args	*cmd_get_args(struct cmd *);
2592 u_int		 cmd_get_group(struct cmd *);
2593 void		 cmd_get_source(struct cmd *, const char **, u_int *);
2594 struct cmd	*cmd_parse(struct args_value *, u_int, const char *, u_int,
2595 		     char **);
2596 struct cmd	*cmd_copy(struct cmd *, int, char **);
2597 void		 cmd_free(struct cmd *);
2598 char		*cmd_print(struct cmd *);
2599 struct cmd_list	*cmd_list_new(void);
2600 struct cmd_list	*cmd_list_copy(struct cmd_list *, int, char **);
2601 void		 cmd_list_append(struct cmd_list *, struct cmd *);
2602 void		 cmd_list_append_all(struct cmd_list *, struct cmd_list *);
2603 void		 cmd_list_move(struct cmd_list *, struct cmd_list *);
2604 void		 cmd_list_free(struct cmd_list *);
2605 char		*cmd_list_print(struct cmd_list *, int);
2606 struct cmd	*cmd_list_first(struct cmd_list *);
2607 struct cmd	*cmd_list_next(struct cmd *);
2608 int		 cmd_list_all_have(struct cmd_list *, int);
2609 int		 cmd_list_any_have(struct cmd_list *, int);
2610 int		 cmd_mouse_at(struct window_pane *, struct mouse_event *,
2611 		     u_int *, u_int *, int);
2612 struct winlink	*cmd_mouse_window(struct mouse_event *, struct session **);
2613 struct window_pane *cmd_mouse_pane(struct mouse_event *, struct session **,
2614 		     struct winlink **);
2615 char		*cmd_template_replace(const char *, const char *, int);
2616 
2617 /* cmd-attach-session.c */
2618 enum cmd_retval	 cmd_attach_session(struct cmdq_item *, const char *, int, int,
2619 		     int, const char *, int, const char *);
2620 
2621 /* cmd-parse.c */
2622 struct cmd_parse_result *cmd_parse_from_file(FILE *, struct cmd_parse_input *);
2623 struct cmd_parse_result *cmd_parse_from_string(const char *,
2624 		     struct cmd_parse_input *);
2625 enum cmd_parse_status cmd_parse_and_insert(const char *,
2626 		     struct cmd_parse_input *, struct cmdq_item *,
2627 		     struct cmdq_state *, char **);
2628 enum cmd_parse_status cmd_parse_and_append(const char *,
2629 		     struct cmd_parse_input *, struct client *,
2630 		     struct cmdq_state *, char **);
2631 struct cmd_parse_result *cmd_parse_from_buffer(const void *, size_t,
2632 		     struct cmd_parse_input *);
2633 struct cmd_parse_result *cmd_parse_from_arguments(struct args_value *, u_int,
2634 		     struct cmd_parse_input *);
2635 
2636 /* cmd-queue.c */
2637 struct cmdq_state *cmdq_new_state(struct cmd_find_state *, struct key_event *,
2638 		     int);
2639 struct cmdq_state *cmdq_link_state(struct cmdq_state *);
2640 struct cmdq_state *cmdq_copy_state(struct cmdq_state *,
2641 		     struct cmd_find_state *);
2642 void		  cmdq_free_state(struct cmdq_state *);
2643 void printflike(3, 4) cmdq_add_format(struct cmdq_state *, const char *,
2644 		     const char *, ...);
2645 void		  cmdq_add_formats(struct cmdq_state *, struct format_tree *);
2646 void		  cmdq_merge_formats(struct cmdq_item *, struct format_tree *);
2647 struct cmdq_list *cmdq_new(void);
2648 void cmdq_free(struct cmdq_list *);
2649 const char	 *cmdq_get_name(struct cmdq_item *);
2650 struct client	 *cmdq_get_client(struct cmdq_item *);
2651 struct client	 *cmdq_get_target_client(struct cmdq_item *);
2652 struct cmdq_state *cmdq_get_state(struct cmdq_item *);
2653 struct cmd_find_state *cmdq_get_target(struct cmdq_item *);
2654 struct cmd_find_state *cmdq_get_source(struct cmdq_item *);
2655 struct key_event *cmdq_get_event(struct cmdq_item *);
2656 struct cmd_find_state *cmdq_get_current(struct cmdq_item *);
2657 int		  cmdq_get_flags(struct cmdq_item *);
2658 struct cmdq_item *cmdq_get_command(struct cmd_list *, struct cmdq_state *);
2659 #define cmdq_get_callback(cb, data) cmdq_get_callback1(#cb, cb, data)
2660 struct cmdq_item *cmdq_get_callback1(const char *, cmdq_cb, void *);
2661 struct cmdq_item *cmdq_get_error(const char *);
2662 struct cmdq_item *cmdq_insert_after(struct cmdq_item *, struct cmdq_item *);
2663 struct cmdq_item *cmdq_append(struct client *, struct cmdq_item *);
2664 void printflike(4, 5) cmdq_insert_hook(struct session *, struct cmdq_item *,
2665 		     struct cmd_find_state *, const char *, ...);
2666 void		 cmdq_continue(struct cmdq_item *);
2667 u_int		 cmdq_next(struct client *);
2668 struct cmdq_item *cmdq_running(struct client *);
2669 void		 cmdq_guard(struct cmdq_item *, const char *, int);
2670 void printflike(2, 3) cmdq_print(struct cmdq_item *, const char *, ...);
2671 void 		 cmdq_print_data(struct cmdq_item *, int, struct evbuffer *);
2672 void printflike(2, 3) cmdq_error(struct cmdq_item *, const char *, ...);
2673 
2674 /* cmd-wait-for.c */
2675 void	cmd_wait_for_flush(void);
2676 
2677 /* client.c */
2678 int	client_main(struct event_base *, int, char **, uint64_t, int);
2679 
2680 /* key-bindings.c */
2681 struct key_table *key_bindings_get_table(const char *, int);
2682 struct key_table *key_bindings_first_table(void);
2683 struct key_table *key_bindings_next_table(struct key_table *);
2684 void	 key_bindings_unref_table(struct key_table *);
2685 struct key_binding *key_bindings_get(struct key_table *, key_code);
2686 struct key_binding *key_bindings_get_default(struct key_table *, key_code);
2687 struct key_binding *key_bindings_first(struct key_table *);
2688 struct key_binding *key_bindings_next(struct key_table *, struct key_binding *);
2689 void	 key_bindings_add(const char *, key_code, const char *, int,
2690 	     struct cmd_list *);
2691 void	 key_bindings_remove(const char *, key_code);
2692 void	 key_bindings_reset(const char *, key_code);
2693 void	 key_bindings_remove_table(const char *);
2694 void	 key_bindings_reset_table(const char *);
2695 void	 key_bindings_init(void);
2696 struct cmdq_item *key_bindings_dispatch(struct key_binding *,
2697 	     struct cmdq_item *, struct client *, struct key_event *,
2698 	     struct cmd_find_state *);
2699 
2700 /* key-string.c */
2701 key_code	 key_string_lookup_string(const char *);
2702 const char	*key_string_lookup_key(key_code, int);
2703 
2704 /* alerts.c */
2705 void	alerts_reset_all(void);
2706 void	alerts_queue(struct window *, int);
2707 void	alerts_check_session(struct session *);
2708 
2709 /* file.c */
2710 int	 file_cmp(struct client_file *, struct client_file *);
2711 RB_PROTOTYPE(client_files, client_file, entry, file_cmp);
2712 struct client_file *file_create_with_peer(struct tmuxpeer *,
2713 	    struct client_files *, int, client_file_cb, void *);
2714 struct client_file *file_create_with_client(struct client *, int,
2715 	    client_file_cb, void *);
2716 void	 file_free(struct client_file *);
2717 void	 file_fire_done(struct client_file *);
2718 void	 file_fire_read(struct client_file *);
2719 int	 file_can_print(struct client *);
2720 void printflike(2, 3) file_print(struct client *, const char *, ...);
2721 void printflike(2, 0) file_vprint(struct client *, const char *, va_list);
2722 void	 file_print_buffer(struct client *, void *, size_t);
2723 void printflike(2, 3) file_error(struct client *, const char *, ...);
2724 void	 file_write(struct client *, const char *, int, const void *, size_t,
2725 	     client_file_cb, void *);
2726 struct client_file *file_read(struct client *, const char *, client_file_cb,
2727 	     void *);
2728 void	 file_cancel(struct client_file *);
2729 void	 file_push(struct client_file *);
2730 int	 file_write_left(struct client_files *);
2731 void	 file_write_open(struct client_files *, struct tmuxpeer *,
2732 	     struct imsg *, int, int, client_file_cb, void *);
2733 void	 file_write_data(struct client_files *, struct imsg *);
2734 void	 file_write_close(struct client_files *, struct imsg *);
2735 void	 file_read_open(struct client_files *, struct tmuxpeer *, struct imsg *,
2736 	     int, int, client_file_cb, void *);
2737 void	 file_write_ready(struct client_files *, struct imsg *);
2738 void	 file_read_data(struct client_files *, struct imsg *);
2739 void	 file_read_done(struct client_files *, struct imsg *);
2740 void	 file_read_cancel(struct client_files *, struct imsg *);
2741 
2742 /* server.c */
2743 extern struct tmuxproc *server_proc;
2744 extern struct clients clients;
2745 extern struct cmd_find_state marked_pane;
2746 extern struct message_list message_log;
2747 extern time_t current_time;
2748 void	 server_set_marked(struct session *, struct winlink *,
2749 	     struct window_pane *);
2750 void	 server_clear_marked(void);
2751 int	 server_is_marked(struct session *, struct winlink *,
2752 	     struct window_pane *);
2753 int	 server_check_marked(void);
2754 int	 server_start(struct tmuxproc *, uint64_t, struct event_base *, int,
2755 	     char *);
2756 void	 server_update_socket(void);
2757 void	 server_add_accept(int);
2758 void printflike(1, 2) server_add_message(const char *, ...);
2759 int	 server_create_socket(uint64_t, char **);
2760 
2761 /* server-client.c */
2762 RB_PROTOTYPE(client_windows, client_window, entry, server_client_window_cmp);
2763 u_int	 server_client_how_many(void);
2764 void	 server_client_set_overlay(struct client *, u_int, overlay_check_cb,
2765 	     overlay_mode_cb, overlay_draw_cb, overlay_key_cb,
2766 	     overlay_free_cb, overlay_resize_cb, void *);
2767 void	 server_client_clear_overlay(struct client *);
2768 void	 server_client_overlay_range(u_int, u_int, u_int, u_int, u_int, u_int,
2769 	     u_int, struct overlay_ranges *);
2770 void	 server_client_set_key_table(struct client *, const char *);
2771 const char *server_client_get_key_table(struct client *);
2772 int	 server_client_check_nested(struct client *);
2773 int	 server_client_handle_key(struct client *, struct key_event *);
2774 struct client *server_client_create(int);
2775 int	 server_client_open(struct client *, char **);
2776 void	 server_client_unref(struct client *);
2777 void	 server_client_set_session(struct client *, struct session *);
2778 void	 server_client_lost(struct client *);
2779 void	 server_client_suspend(struct client *);
2780 void	 server_client_detach(struct client *, enum msgtype);
2781 void	 server_client_exec(struct client *, const char *);
2782 void	 server_client_loop(void);
2783 const char *server_client_get_cwd(struct client *, struct session *);
2784 void	 server_client_set_flags(struct client *, const char *);
2785 const char *server_client_get_flags(struct client *);
2786 struct client_window *server_client_get_client_window(struct client *, u_int);
2787 struct client_window *server_client_add_client_window(struct client *, u_int);
2788 struct window_pane *server_client_get_pane(struct client *);
2789 void	 server_client_set_pane(struct client *, struct window_pane *);
2790 void	 server_client_remove_pane(struct window_pane *);
2791 void	 server_client_print(struct client *, int, struct evbuffer *);
2792 
2793 /* server-fn.c */
2794 void	 server_redraw_client(struct client *);
2795 void	 server_status_client(struct client *);
2796 void	 server_redraw_session(struct session *);
2797 void	 server_redraw_session_group(struct session *);
2798 void	 server_status_session(struct session *);
2799 void	 server_status_session_group(struct session *);
2800 void	 server_redraw_window(struct window *);
2801 void	 server_redraw_window_borders(struct window *);
2802 void	 server_status_window(struct window *);
2803 void	 server_lock(void);
2804 void	 server_lock_session(struct session *);
2805 void	 server_lock_client(struct client *);
2806 void	 server_kill_pane(struct window_pane *);
2807 void	 server_kill_window(struct window *, int);
2808 void	 server_renumber_session(struct session *);
2809 void	 server_renumber_all(void);
2810 int	 server_link_window(struct session *,
2811 	     struct winlink *, struct session *, int, int, int, char **);
2812 void	 server_unlink_window(struct session *, struct winlink *);
2813 void	 server_destroy_pane(struct window_pane *, int);
2814 void	 server_destroy_session(struct session *);
2815 void	 server_check_unattached(void);
2816 void	 server_unzoom_window(struct window *);
2817 
2818 /* status.c */
2819 extern char	**status_prompt_hlist[];
2820 extern u_int	  status_prompt_hsize[];
2821 void	 status_timer_start(struct client *);
2822 void	 status_timer_start_all(void);
2823 void	 status_update_cache(struct session *);
2824 int	 status_at_line(struct client *);
2825 u_int	 status_line_size(struct client *);
2826 struct style_range *status_get_range(struct client *, u_int, u_int);
2827 void	 status_init(struct client *);
2828 void	 status_free(struct client *);
2829 int	 status_redraw(struct client *);
2830 void printflike(5, 6) status_message_set(struct client *, int, int, int,
2831 	     const char *, ...);
2832 void	 status_message_clear(struct client *);
2833 int	 status_message_redraw(struct client *);
2834 void	 status_prompt_set(struct client *, struct cmd_find_state *,
2835 	     const char *, const char *, prompt_input_cb, prompt_free_cb,
2836 	     void *, int, enum prompt_type);
2837 void	 status_prompt_clear(struct client *);
2838 int	 status_prompt_redraw(struct client *);
2839 int	 status_prompt_key(struct client *, key_code);
2840 void	 status_prompt_update(struct client *, const char *, const char *);
2841 void	 status_prompt_load_history(void);
2842 void	 status_prompt_save_history(void);
2843 const char *status_prompt_type_string(u_int);
2844 enum prompt_type status_prompt_type(const char *type);
2845 
2846 /* resize.c */
2847 void	 resize_window(struct window *, u_int, u_int, int, int);
2848 void	 default_window_size(struct client *, struct session *, struct window *,
2849 	     u_int *, u_int *, u_int *, u_int *, int);
2850 void	 recalculate_size(struct window *, int);
2851 void	 recalculate_sizes(void);
2852 void	 recalculate_sizes_now(int);
2853 
2854 /* input.c */
2855 #define INPUT_BUF_DEFAULT_SIZE 1048576
2856 struct input_ctx *input_init(struct window_pane *, struct bufferevent *,
2857 	     struct colour_palette *);
2858 void	 input_free(struct input_ctx *);
2859 void	 input_reset(struct input_ctx *, int);
2860 struct evbuffer *input_pending(struct input_ctx *);
2861 void	 input_parse_pane(struct window_pane *);
2862 void	 input_parse_buffer(struct window_pane *, u_char *, size_t);
2863 void	 input_parse_screen(struct input_ctx *, struct screen *,
2864 	     screen_write_init_ctx_cb, void *, u_char *, size_t);
2865 void	 input_reply_clipboard(struct bufferevent *, const char *, size_t,
2866 	     const char *);
2867 void	 input_set_buffer_size(size_t);
2868 
2869 /* input-key.c */
2870 void	 input_key_build(void);
2871 int	 input_key_pane(struct window_pane *, key_code, struct mouse_event *);
2872 int	 input_key(struct screen *, struct bufferevent *, key_code);
2873 int	 input_key_get_mouse(struct screen *, struct mouse_event *, u_int,
2874 	     u_int, const char **, size_t *);
2875 
2876 /* colour.c */
2877 int	 colour_find_rgb(u_char, u_char, u_char);
2878 int	 colour_join_rgb(u_char, u_char, u_char);
2879 void	 colour_split_rgb(int, u_char *, u_char *, u_char *);
2880 int	 colour_force_rgb(int);
2881 const char *colour_tostring(int);
2882 int	 colour_fromstring(const char *s);
2883 int	 colour_256toRGB(int);
2884 int	 colour_256to16(int);
2885 int	 colour_byname(const char *);
2886 int	 colour_parseX11(const char *);
2887 void	 colour_palette_init(struct colour_palette *);
2888 void	 colour_palette_clear(struct colour_palette *);
2889 void	 colour_palette_free(struct colour_palette *);
2890 int	 colour_palette_get(struct colour_palette *, int);
2891 int	 colour_palette_set(struct colour_palette *, int, int);
2892 void	 colour_palette_from_option(struct colour_palette *, struct options *);
2893 
2894 /* attributes.c */
2895 const char *attributes_tostring(int);
2896 int	 attributes_fromstring(const char *);
2897 
2898 /* grid.c */
2899 extern const struct grid_cell grid_default_cell;
2900 void	 grid_empty_line(struct grid *, u_int, u_int);
2901 void	 grid_set_tab(struct grid_cell *, u_int);
2902 int	 grid_cells_equal(const struct grid_cell *, const struct grid_cell *);
2903 int	 grid_cells_look_equal(const struct grid_cell *,
2904 	     const struct grid_cell *);
2905 struct grid *grid_create(u_int, u_int, u_int);
2906 void	 grid_destroy(struct grid *);
2907 int	 grid_compare(struct grid *, struct grid *);
2908 void	 grid_collect_history(struct grid *);
2909 void	 grid_remove_history(struct grid *, u_int );
2910 void	 grid_scroll_history(struct grid *, u_int);
2911 void	 grid_scroll_history_region(struct grid *, u_int, u_int, u_int);
2912 void	 grid_clear_history(struct grid *);
2913 const struct grid_line *grid_peek_line(struct grid *, u_int);
2914 void	 grid_get_cell(struct grid *, u_int, u_int, struct grid_cell *);
2915 void	 grid_set_cell(struct grid *, u_int, u_int, const struct grid_cell *);
2916 void	 grid_set_padding(struct grid *, u_int, u_int);
2917 void	 grid_set_cells(struct grid *, u_int, u_int, const struct grid_cell *,
2918 	     const char *, size_t);
2919 struct grid_line *grid_get_line(struct grid *, u_int);
2920 void	 grid_adjust_lines(struct grid *, u_int);
2921 void	 grid_clear(struct grid *, u_int, u_int, u_int, u_int, u_int);
2922 void	 grid_clear_lines(struct grid *, u_int, u_int, u_int);
2923 void	 grid_move_lines(struct grid *, u_int, u_int, u_int, u_int);
2924 void	 grid_move_cells(struct grid *, u_int, u_int, u_int, u_int, u_int);
2925 char	*grid_string_cells(struct grid *, u_int, u_int, u_int,
2926 	     struct grid_cell **, int, struct screen *);
2927 void	 grid_duplicate_lines(struct grid *, u_int, struct grid *, u_int,
2928 	     u_int);
2929 void	 grid_reflow(struct grid *, u_int);
2930 void	 grid_wrap_position(struct grid *, u_int, u_int, u_int *, u_int *);
2931 void	 grid_unwrap_position(struct grid *, u_int *, u_int *, u_int, u_int);
2932 u_int	 grid_line_length(struct grid *, u_int);
2933 
2934 /* grid-reader.c */
2935 void	 grid_reader_start(struct grid_reader *, struct grid *, u_int, u_int);
2936 void	 grid_reader_get_cursor(struct grid_reader *, u_int *, u_int *);
2937 u_int	 grid_reader_line_length(struct grid_reader *);
2938 int	 grid_reader_in_set(struct grid_reader *, const char *);
2939 void	 grid_reader_cursor_right(struct grid_reader *, int, int);
2940 void	 grid_reader_cursor_left(struct grid_reader *, int);
2941 void	 grid_reader_cursor_down(struct grid_reader *);
2942 void	 grid_reader_cursor_up(struct grid_reader *);
2943 void	 grid_reader_cursor_start_of_line(struct grid_reader *, int);
2944 void	 grid_reader_cursor_end_of_line(struct grid_reader *, int, int);
2945 void	 grid_reader_cursor_next_word(struct grid_reader *, const char *);
2946 void	 grid_reader_cursor_next_word_end(struct grid_reader *, const char *);
2947 void	 grid_reader_cursor_previous_word(struct grid_reader *, const char *,
2948 	     int, int);
2949 int	 grid_reader_cursor_jump(struct grid_reader *,
2950 	     const struct utf8_data *);
2951 int	 grid_reader_cursor_jump_back(struct grid_reader *,
2952 	     const struct utf8_data *);
2953 void	 grid_reader_cursor_back_to_indentation(struct grid_reader *);
2954 
2955 /* grid-view.c */
2956 void	 grid_view_get_cell(struct grid *, u_int, u_int, struct grid_cell *);
2957 void	 grid_view_set_cell(struct grid *, u_int, u_int,
2958 	     const struct grid_cell *);
2959 void	 grid_view_set_padding(struct grid *, u_int, u_int);
2960 void	 grid_view_set_cells(struct grid *, u_int, u_int,
2961 	     const struct grid_cell *, const char *, size_t);
2962 void	 grid_view_clear_history(struct grid *, u_int);
2963 void	 grid_view_clear(struct grid *, u_int, u_int, u_int, u_int, u_int);
2964 void	 grid_view_scroll_region_up(struct grid *, u_int, u_int, u_int);
2965 void	 grid_view_scroll_region_down(struct grid *, u_int, u_int, u_int);
2966 void	 grid_view_insert_lines(struct grid *, u_int, u_int, u_int);
2967 void	 grid_view_insert_lines_region(struct grid *, u_int, u_int, u_int,
2968 	     u_int);
2969 void	 grid_view_delete_lines(struct grid *, u_int, u_int, u_int);
2970 void	 grid_view_delete_lines_region(struct grid *, u_int, u_int, u_int,
2971 	     u_int);
2972 void	 grid_view_insert_cells(struct grid *, u_int, u_int, u_int, u_int);
2973 void	 grid_view_delete_cells(struct grid *, u_int, u_int, u_int, u_int);
2974 char	*grid_view_string_cells(struct grid *, u_int, u_int, u_int);
2975 
2976 /* screen-write.c */
2977 void	 screen_write_make_list(struct screen *);
2978 void	 screen_write_free_list(struct screen *);
2979 void	 screen_write_start_pane(struct screen_write_ctx *,
2980 	     struct window_pane *, struct screen *);
2981 void	 screen_write_start(struct screen_write_ctx *, struct screen *);
2982 void	 screen_write_start_callback(struct screen_write_ctx *, struct screen *,
2983 	     screen_write_init_ctx_cb, void *);
2984 void	 screen_write_stop(struct screen_write_ctx *);
2985 void	 screen_write_reset(struct screen_write_ctx *);
2986 size_t printflike(1, 2) screen_write_strlen(const char *, ...);
2987 int printflike(7, 8) screen_write_text(struct screen_write_ctx *, u_int, u_int,
2988 	     u_int, int, const struct grid_cell *, const char *, ...);
2989 void printflike(3, 4) screen_write_puts(struct screen_write_ctx *,
2990 	     const struct grid_cell *, const char *, ...);
2991 void printflike(4, 5) screen_write_nputs(struct screen_write_ctx *,
2992 	     ssize_t, const struct grid_cell *, const char *, ...);
2993 void printflike(4, 0) screen_write_vnputs(struct screen_write_ctx *, ssize_t,
2994 	     const struct grid_cell *, const char *, va_list);
2995 void	 screen_write_putc(struct screen_write_ctx *, const struct grid_cell *,
2996 	     u_char);
2997 void	 screen_write_fast_copy(struct screen_write_ctx *, struct screen *,
2998 	     u_int, u_int, u_int, u_int);
2999 void	 screen_write_hline(struct screen_write_ctx *, u_int, int, int,
3000 	     enum box_lines, const struct grid_cell *);
3001 void	 screen_write_vline(struct screen_write_ctx *, u_int, int, int);
3002 void	 screen_write_menu(struct screen_write_ctx *, struct menu *, int,
3003 	     enum box_lines, const struct grid_cell *, const struct grid_cell *,
3004 	     const struct grid_cell *);
3005 void	 screen_write_box(struct screen_write_ctx *, u_int, u_int,
3006              enum box_lines, const struct grid_cell *, const char *);
3007 void	 screen_write_preview(struct screen_write_ctx *, struct screen *, u_int,
3008 	     u_int);
3009 void	 screen_write_backspace(struct screen_write_ctx *);
3010 void	 screen_write_mode_set(struct screen_write_ctx *, int);
3011 void	 screen_write_mode_clear(struct screen_write_ctx *, int);
3012 void	 screen_write_cursorup(struct screen_write_ctx *, u_int);
3013 void	 screen_write_cursordown(struct screen_write_ctx *, u_int);
3014 void	 screen_write_cursorright(struct screen_write_ctx *, u_int);
3015 void	 screen_write_cursorleft(struct screen_write_ctx *, u_int);
3016 void	 screen_write_alignmenttest(struct screen_write_ctx *);
3017 void	 screen_write_insertcharacter(struct screen_write_ctx *, u_int, u_int);
3018 void	 screen_write_deletecharacter(struct screen_write_ctx *, u_int, u_int);
3019 void	 screen_write_clearcharacter(struct screen_write_ctx *, u_int, u_int);
3020 void	 screen_write_insertline(struct screen_write_ctx *, u_int, u_int);
3021 void	 screen_write_deleteline(struct screen_write_ctx *, u_int, u_int);
3022 void	 screen_write_clearline(struct screen_write_ctx *, u_int);
3023 void	 screen_write_clearendofline(struct screen_write_ctx *, u_int);
3024 void	 screen_write_clearstartofline(struct screen_write_ctx *, u_int);
3025 void	 screen_write_cursormove(struct screen_write_ctx *, int, int, int);
3026 void	 screen_write_reverseindex(struct screen_write_ctx *, u_int);
3027 void	 screen_write_scrollregion(struct screen_write_ctx *, u_int, u_int);
3028 void	 screen_write_linefeed(struct screen_write_ctx *, int, u_int);
3029 void	 screen_write_scrollup(struct screen_write_ctx *, u_int, u_int);
3030 void	 screen_write_scrolldown(struct screen_write_ctx *, u_int, u_int);
3031 void	 screen_write_carriagereturn(struct screen_write_ctx *);
3032 void	 screen_write_clearendofscreen(struct screen_write_ctx *, u_int);
3033 void	 screen_write_clearstartofscreen(struct screen_write_ctx *, u_int);
3034 void	 screen_write_clearscreen(struct screen_write_ctx *, u_int);
3035 void	 screen_write_clearhistory(struct screen_write_ctx *);
3036 void	 screen_write_fullredraw(struct screen_write_ctx *);
3037 void	 screen_write_collect_end(struct screen_write_ctx *);
3038 void	 screen_write_collect_add(struct screen_write_ctx *,
3039 	     const struct grid_cell *);
3040 void	 screen_write_cell(struct screen_write_ctx *, const struct grid_cell *);
3041 void	 screen_write_setselection(struct screen_write_ctx *, const char *,
3042 	     u_char *, u_int);
3043 void	 screen_write_rawstring(struct screen_write_ctx *, u_char *, u_int,
3044 	     int);
3045 void	 screen_write_alternateon(struct screen_write_ctx *,
3046 	     struct grid_cell *, int);
3047 void	 screen_write_alternateoff(struct screen_write_ctx *,
3048 	     struct grid_cell *, int);
3049 
3050 /* screen-redraw.c */
3051 void	 screen_redraw_screen(struct client *);
3052 void	 screen_redraw_pane(struct client *, struct window_pane *, int);
3053 
3054 /* screen.c */
3055 void	 screen_init(struct screen *, u_int, u_int, u_int);
3056 void	 screen_reinit(struct screen *);
3057 void	 screen_free(struct screen *);
3058 void	 screen_reset_tabs(struct screen *);
3059 void	 screen_reset_hyperlinks(struct screen *);
3060 void	 screen_set_default_cursor(struct screen *, struct options *);
3061 void	 screen_set_cursor_style(u_int, enum screen_cursor_style *, int *);
3062 void	 screen_set_cursor_colour(struct screen *, int);
3063 int	 screen_set_title(struct screen *, const char *);
3064 void	 screen_set_path(struct screen *, const char *);
3065 void	 screen_push_title(struct screen *);
3066 void	 screen_pop_title(struct screen *);
3067 void	 screen_resize(struct screen *, u_int, u_int, int);
3068 void	 screen_resize_cursor(struct screen *, u_int, u_int, int, int, int);
3069 void	 screen_set_selection(struct screen *, u_int, u_int, u_int, u_int,
3070 	     u_int, int, struct grid_cell *);
3071 void	 screen_clear_selection(struct screen *);
3072 void	 screen_hide_selection(struct screen *);
3073 int	 screen_check_selection(struct screen *, u_int, u_int);
3074 void	 screen_select_cell(struct screen *, struct grid_cell *,
3075 	     const struct grid_cell *);
3076 void	 screen_alternate_on(struct screen *, struct grid_cell *, int);
3077 void	 screen_alternate_off(struct screen *, struct grid_cell *, int);
3078 const char *screen_mode_to_string(int);
3079 
3080 /* window.c */
3081 extern struct windows windows;
3082 extern struct window_pane_tree all_window_panes;
3083 int		 window_cmp(struct window *, struct window *);
3084 RB_PROTOTYPE(windows, window, entry, window_cmp);
3085 int		 winlink_cmp(struct winlink *, struct winlink *);
3086 RB_PROTOTYPE(winlinks, winlink, entry, winlink_cmp);
3087 int		 window_pane_cmp(struct window_pane *, struct window_pane *);
3088 RB_PROTOTYPE(window_pane_tree, window_pane, tree_entry, window_pane_cmp);
3089 struct winlink	*winlink_find_by_index(struct winlinks *, int);
3090 struct winlink	*winlink_find_by_window(struct winlinks *, struct window *);
3091 struct winlink	*winlink_find_by_window_id(struct winlinks *, u_int);
3092 u_int		 winlink_count(struct winlinks *);
3093 struct winlink	*winlink_add(struct winlinks *, int);
3094 void		 winlink_set_window(struct winlink *, struct window *);
3095 void		 winlink_remove(struct winlinks *, struct winlink *);
3096 struct winlink	*winlink_next(struct winlink *);
3097 struct winlink	*winlink_previous(struct winlink *);
3098 struct winlink	*winlink_next_by_number(struct winlink *, struct session *,
3099 		     int);
3100 struct winlink	*winlink_previous_by_number(struct winlink *, struct session *,
3101 		     int);
3102 void		 winlink_stack_push(struct winlink_stack *, struct winlink *);
3103 void		 winlink_stack_remove(struct winlink_stack *, struct winlink *);
3104 struct window	*window_find_by_id_str(const char *);
3105 struct window	*window_find_by_id(u_int);
3106 void		 window_update_activity(struct window *);
3107 struct window	*window_create(u_int, u_int, u_int, u_int);
3108 void		 window_pane_set_event(struct window_pane *);
3109 struct window_pane *window_get_active_at(struct window *, u_int, u_int);
3110 struct window_pane *window_find_string(struct window *, const char *);
3111 int		 window_has_pane(struct window *, struct window_pane *);
3112 int		 window_set_active_pane(struct window *, struct window_pane *,
3113 		     int);
3114 void		 window_update_focus(struct window *);
3115 void		 window_pane_update_focus(struct window_pane *);
3116 void		 window_redraw_active_switch(struct window *,
3117 		     struct window_pane *);
3118 struct window_pane *window_add_pane(struct window *, struct window_pane *,
3119 		     u_int, int);
3120 void		 window_resize(struct window *, u_int, u_int, int, int);
3121 void		 window_pane_send_resize(struct window_pane *, u_int, u_int);
3122 int		 window_zoom(struct window_pane *);
3123 int		 window_unzoom(struct window *, int);
3124 int		 window_push_zoom(struct window *, int, int);
3125 int		 window_pop_zoom(struct window *);
3126 void		 window_lost_pane(struct window *, struct window_pane *);
3127 void		 window_remove_pane(struct window *, struct window_pane *);
3128 struct window_pane *window_pane_at_index(struct window *, u_int);
3129 struct window_pane *window_pane_next_by_number(struct window *,
3130 			struct window_pane *, u_int);
3131 struct window_pane *window_pane_previous_by_number(struct window *,
3132 			struct window_pane *, u_int);
3133 int		 window_pane_index(struct window_pane *, u_int *);
3134 u_int		 window_count_panes(struct window *);
3135 void		 window_destroy_panes(struct window *);
3136 struct window_pane *window_pane_find_by_id_str(const char *);
3137 struct window_pane *window_pane_find_by_id(u_int);
3138 int		 window_pane_destroy_ready(struct window_pane *);
3139 void		 window_pane_resize(struct window_pane *, u_int, u_int);
3140 int		 window_pane_set_mode(struct window_pane *,
3141 		     struct window_pane *, const struct window_mode *,
3142 		     struct cmd_find_state *, struct args *);
3143 void		 window_pane_reset_mode(struct window_pane *);
3144 void		 window_pane_reset_mode_all(struct window_pane *);
3145 int		 window_pane_key(struct window_pane *, struct client *,
3146 		     struct session *, struct winlink *, key_code,
3147 		     struct mouse_event *);
3148 void		 window_pane_paste(struct window_pane *, char *, size_t);
3149 int		 window_pane_visible(struct window_pane *);
3150 int		 window_pane_exited(struct window_pane *);
3151 u_int		 window_pane_search(struct window_pane *, const char *, int,
3152 		     int);
3153 const char	*window_printable_flags(struct winlink *, int);
3154 struct window_pane *window_pane_find_up(struct window_pane *);
3155 struct window_pane *window_pane_find_down(struct window_pane *);
3156 struct window_pane *window_pane_find_left(struct window_pane *);
3157 struct window_pane *window_pane_find_right(struct window_pane *);
3158 void		 window_pane_stack_push(struct window_panes *,
3159 		     struct window_pane *);
3160 void		 window_pane_stack_remove(struct window_panes *,
3161 		     struct window_pane *);
3162 void		 window_set_name(struct window *, const char *);
3163 void		 window_add_ref(struct window *, const char *);
3164 void		 window_remove_ref(struct window *, const char *);
3165 void		 winlink_clear_flags(struct winlink *);
3166 int		 winlink_shuffle_up(struct session *, struct winlink *, int);
3167 int		 window_pane_start_input(struct window_pane *,
3168 		     struct cmdq_item *, char **);
3169 void		*window_pane_get_new_data(struct window_pane *,
3170 		     struct window_pane_offset *, size_t *);
3171 void		 window_pane_update_used_data(struct window_pane *,
3172 		     struct window_pane_offset *, size_t);
3173 void		 window_set_fill_character(struct window *);
3174 void		 window_pane_default_cursor(struct window_pane *);
3175 int		 window_pane_mode(struct window_pane *);
3176 
3177 /* layout.c */
3178 u_int		 layout_count_cells(struct layout_cell *);
3179 struct layout_cell *layout_create_cell(struct layout_cell *);
3180 void		 layout_free_cell(struct layout_cell *);
3181 void		 layout_print_cell(struct layout_cell *, const char *, u_int);
3182 void		 layout_destroy_cell(struct window *, struct layout_cell *,
3183 		     struct layout_cell **);
3184 void		 layout_resize_layout(struct window *, struct layout_cell *,
3185 		     enum layout_type, int, int);
3186 struct layout_cell *layout_search_by_border(struct layout_cell *, u_int, u_int);
3187 void		 layout_set_size(struct layout_cell *, u_int, u_int, u_int,
3188 		     u_int);
3189 void		 layout_make_leaf(struct layout_cell *, struct window_pane *);
3190 void		 layout_make_node(struct layout_cell *, enum layout_type);
3191 void		 layout_fix_offsets(struct window *);
3192 void		 layout_fix_panes(struct window *, struct window_pane *);
3193 void		 layout_resize_adjust(struct window *, struct layout_cell *,
3194 		     enum layout_type, int);
3195 void		 layout_init(struct window *, struct window_pane *);
3196 void		 layout_free(struct window *);
3197 void		 layout_resize(struct window *, u_int, u_int);
3198 void		 layout_resize_pane(struct window_pane *, enum layout_type,
3199 		     int, int);
3200 void		 layout_resize_pane_to(struct window_pane *, enum layout_type,
3201 		     u_int);
3202 void		 layout_assign_pane(struct layout_cell *, struct window_pane *,
3203 		     int);
3204 struct layout_cell *layout_split_pane(struct window_pane *, enum layout_type,
3205 		     int, int);
3206 void		 layout_close_pane(struct window_pane *);
3207 int		 layout_spread_cell(struct window *, struct layout_cell *);
3208 void		 layout_spread_out(struct window_pane *);
3209 
3210 /* layout-custom.c */
3211 char		*layout_dump(struct layout_cell *);
3212 int		 layout_parse(struct window *, const char *, char **);
3213 
3214 /* layout-set.c */
3215 int		 layout_set_lookup(const char *);
3216 u_int		 layout_set_select(struct window *, u_int);
3217 u_int		 layout_set_next(struct window *);
3218 u_int		 layout_set_previous(struct window *);
3219 
3220 /* mode-tree.c */
3221 typedef void (*mode_tree_build_cb)(void *, struct mode_tree_sort_criteria *,
3222 				   uint64_t *, const char *);
3223 typedef void (*mode_tree_draw_cb)(void *, void *, struct screen_write_ctx *,
3224 	     u_int, u_int);
3225 typedef int (*mode_tree_search_cb)(void *, void *, const char *);
3226 typedef void (*mode_tree_menu_cb)(void *, struct client *, key_code);
3227 typedef u_int (*mode_tree_height_cb)(void *, u_int);
3228 typedef key_code (*mode_tree_key_cb)(void *, void *, u_int);
3229 typedef void (*mode_tree_each_cb)(void *, void *, struct client *, key_code);
3230 u_int	 mode_tree_count_tagged(struct mode_tree_data *);
3231 void	*mode_tree_get_current(struct mode_tree_data *);
3232 const char *mode_tree_get_current_name(struct mode_tree_data *);
3233 void	 mode_tree_expand_current(struct mode_tree_data *);
3234 void	 mode_tree_collapse_current(struct mode_tree_data *);
3235 void	 mode_tree_expand(struct mode_tree_data *, uint64_t);
3236 int	 mode_tree_set_current(struct mode_tree_data *, uint64_t);
3237 void	 mode_tree_each_tagged(struct mode_tree_data *, mode_tree_each_cb,
3238 	     struct client *, key_code, int);
3239 void	 mode_tree_up(struct mode_tree_data *, int);
3240 int	 mode_tree_down(struct mode_tree_data *, int);
3241 struct mode_tree_data *mode_tree_start(struct window_pane *, struct args *,
3242 	     mode_tree_build_cb, mode_tree_draw_cb, mode_tree_search_cb,
3243 	     mode_tree_menu_cb, mode_tree_height_cb, mode_tree_key_cb, void *,
3244 	     const struct menu_item *, const char **, u_int, struct screen **);
3245 void	 mode_tree_zoom(struct mode_tree_data *, struct args *);
3246 void	 mode_tree_build(struct mode_tree_data *);
3247 void	 mode_tree_free(struct mode_tree_data *);
3248 void	 mode_tree_resize(struct mode_tree_data *, u_int, u_int);
3249 struct mode_tree_item *mode_tree_add(struct mode_tree_data *,
3250 	     struct mode_tree_item *, void *, uint64_t, const char *,
3251 	     const char *, int);
3252 void	 mode_tree_draw_as_parent(struct mode_tree_item *);
3253 void	 mode_tree_no_tag(struct mode_tree_item *);
3254 void	 mode_tree_remove(struct mode_tree_data *, struct mode_tree_item *);
3255 void	 mode_tree_draw(struct mode_tree_data *);
3256 int	 mode_tree_key(struct mode_tree_data *, struct client *, key_code *,
3257 	     struct mouse_event *, u_int *, u_int *);
3258 void	 mode_tree_run_command(struct client *, struct cmd_find_state *,
3259 	     const char *, const char *);
3260 
3261 /* window-buffer.c */
3262 extern const struct window_mode window_buffer_mode;
3263 
3264 /* window-tree.c */
3265 extern const struct window_mode window_tree_mode;
3266 
3267 /* window-clock.c */
3268 extern const struct window_mode window_clock_mode;
3269 extern const char window_clock_table[14][5][5];
3270 
3271 /* window-client.c */
3272 extern const struct window_mode window_client_mode;
3273 
3274 /* window-copy.c */
3275 extern const struct window_mode window_copy_mode;
3276 extern const struct window_mode window_view_mode;
3277 void printflike(3, 4) window_copy_add(struct window_pane *, int, const char *,
3278 		     ...);
3279 void printflike(3, 0) window_copy_vadd(struct window_pane *, int, const char *,
3280 		     va_list);
3281 void		 window_copy_scroll(struct window_pane *, int, u_int, int);
3282 void		 window_copy_pageup(struct window_pane *, int);
3283 void		 window_copy_pagedown(struct window_pane *, int, int);
3284 void		 window_copy_start_drag(struct client *, struct mouse_event *);
3285 char		*window_copy_get_word(struct window_pane *, u_int, u_int);
3286 char		*window_copy_get_line(struct window_pane *, u_int);
3287 int		 window_copy_get_current_offset(struct window_pane *, u_int *,
3288 		     u_int *);
3289 
3290 /* window-option.c */
3291 extern const struct window_mode window_customize_mode;
3292 
3293 /* names.c */
3294 void	 check_window_name(struct window *);
3295 char	*default_window_name(struct window *);
3296 char	*parse_window_name(const char *);
3297 
3298 /* control.c */
3299 void	control_discard(struct client *);
3300 void	control_start(struct client *);
3301 void	control_ready(struct client *);
3302 void	control_stop(struct client *);
3303 void	control_set_pane_on(struct client *, struct window_pane *);
3304 void	control_set_pane_off(struct client *, struct window_pane *);
3305 void	control_continue_pane(struct client *, struct window_pane *);
3306 void	control_pause_pane(struct client *, struct window_pane *);
3307 struct window_pane_offset *control_pane_offset(struct client *,
3308 	   struct window_pane *, int *);
3309 void	control_reset_offsets(struct client *);
3310 void printflike(2, 3) control_write(struct client *, const char *, ...);
3311 void	control_write_output(struct client *, struct window_pane *);
3312 int	control_all_done(struct client *);
3313 void	control_add_sub(struct client *, const char *, enum control_sub_type,
3314     	   int, const char *);
3315 void	control_remove_sub(struct client *, const char *);
3316 
3317 /* control-notify.c */
3318 void	control_notify_pane_mode_changed(int);
3319 void	control_notify_window_layout_changed(struct window *);
3320 void	control_notify_window_pane_changed(struct window *);
3321 void	control_notify_window_unlinked(struct session *, struct window *);
3322 void	control_notify_window_linked(struct session *, struct window *);
3323 void	control_notify_window_renamed(struct window *);
3324 void	control_notify_client_session_changed(struct client *);
3325 void	control_notify_client_detached(struct client *);
3326 void	control_notify_session_renamed(struct session *);
3327 void	control_notify_session_created(struct session *);
3328 void	control_notify_session_closed(struct session *);
3329 void	control_notify_session_window_changed(struct session *);
3330 void	control_notify_paste_buffer_changed(const char *);
3331 void	control_notify_paste_buffer_deleted(const char *);
3332 
3333 /* session.c */
3334 extern struct sessions sessions;
3335 extern u_int next_session_id;
3336 int	session_cmp(struct session *, struct session *);
3337 RB_PROTOTYPE(sessions, session, entry, session_cmp);
3338 int		 session_alive(struct session *);
3339 struct session	*session_find(const char *);
3340 struct session	*session_find_by_id_str(const char *);
3341 struct session	*session_find_by_id(u_int);
3342 struct session	*session_create(const char *, const char *, const char *,
3343 		     struct environ *, struct options *, struct termios *);
3344 void		 session_destroy(struct session *, int,	 const char *);
3345 void		 session_add_ref(struct session *, const char *);
3346 void		 session_remove_ref(struct session *, const char *);
3347 char		*session_check_name(const char *);
3348 void		 session_update_activity(struct session *, struct timeval *);
3349 struct session	*session_next_session(struct session *);
3350 struct session	*session_previous_session(struct session *);
3351 struct winlink	*session_attach(struct session *, struct window *, int,
3352 		     char **);
3353 int		 session_detach(struct session *, struct winlink *);
3354 int		 session_has(struct session *, struct window *);
3355 int		 session_is_linked(struct session *, struct window *);
3356 int		 session_next(struct session *, int);
3357 int		 session_previous(struct session *, int);
3358 int		 session_select(struct session *, int);
3359 int		 session_last(struct session *);
3360 int		 session_set_current(struct session *, struct winlink *);
3361 struct session_group *session_group_contains(struct session *);
3362 struct session_group *session_group_find(const char *);
3363 struct session_group *session_group_new(const char *);
3364 void		 session_group_add(struct session_group *, struct session *);
3365 void		 session_group_synchronize_to(struct session *);
3366 void		 session_group_synchronize_from(struct session *);
3367 u_int		 session_group_count(struct session_group *);
3368 u_int		 session_group_attached_count(struct session_group *);
3369 void		 session_renumber_windows(struct session *);
3370 
3371 /* utf8.c */
3372 enum utf8_state	 utf8_towc (const struct utf8_data *, wchar_t *);
3373 enum utf8_state	 utf8_fromwc(wchar_t wc, struct utf8_data *);
3374 int		 utf8_in_table(wchar_t, const wchar_t *, u_int);
3375 utf8_char	 utf8_build_one(u_char);
3376 enum utf8_state	 utf8_from_data(const struct utf8_data *, utf8_char *);
3377 void		 utf8_to_data(utf8_char, struct utf8_data *);
3378 void		 utf8_set(struct utf8_data *, u_char);
3379 void		 utf8_copy(struct utf8_data *, const struct utf8_data *);
3380 enum utf8_state	 utf8_open(struct utf8_data *, u_char);
3381 enum utf8_state	 utf8_append(struct utf8_data *, u_char);
3382 int		 utf8_isvalid(const char *);
3383 int		 utf8_strvis(char *, const char *, size_t, int);
3384 int		 utf8_stravis(char **, const char *, int);
3385 int		 utf8_stravisx(char **, const char *, size_t, int);
3386 char		*utf8_sanitize(const char *);
3387 size_t		 utf8_strlen(const struct utf8_data *);
3388 u_int		 utf8_strwidth(const struct utf8_data *, ssize_t);
3389 struct utf8_data *utf8_fromcstr(const char *);
3390 char		*utf8_tocstr(struct utf8_data *);
3391 u_int		 utf8_cstrwidth(const char *);
3392 char		*utf8_padcstr(const char *, u_int);
3393 char		*utf8_rpadcstr(const char *, u_int);
3394 int		 utf8_cstrhas(const char *, const struct utf8_data *);
3395 
3396 /* utf8-combined.c */
3397 int		 utf8_has_zwj(const struct utf8_data *);
3398 int		 utf8_is_zwj(const struct utf8_data *);
3399 int		 utf8_is_vs(const struct utf8_data *);
3400 int		 utf8_is_modifier(const struct utf8_data *);
3401 
3402 /* procname.c */
3403 char   *get_proc_name(int, char *);
3404 char   *get_proc_cwd(int);
3405 
3406 /* log.c */
3407 void	log_add_level(void);
3408 int	log_get_level(void);
3409 void	log_open(const char *);
3410 void	log_toggle(const char *);
3411 void	log_close(void);
3412 void printflike(1, 2) log_debug(const char *, ...);
3413 __dead void printflike(1, 2) fatal(const char *, ...);
3414 __dead void printflike(1, 2) fatalx(const char *, ...);
3415 
3416 /* menu.c */
3417 #define MENU_NOMOUSE 0x1
3418 #define MENU_TAB 0x2
3419 #define MENU_STAYOPEN 0x4
3420 struct menu	*menu_create(const char *);
3421 void		 menu_add_items(struct menu *, const struct menu_item *,
3422 		    struct cmdq_item *, struct client *,
3423 		    struct cmd_find_state *);
3424 void		 menu_add_item(struct menu *, const struct menu_item *,
3425 		    struct cmdq_item *, struct client *,
3426 		    struct cmd_find_state *);
3427 void		 menu_free(struct menu *);
3428 struct menu_data *menu_prepare(struct menu *, int, int, struct cmdq_item *,
3429 		    u_int, u_int, struct client *, enum box_lines, const char *,
3430 		    const char *, const char *, struct cmd_find_state *,
3431 		    menu_choice_cb, void *);
3432 int		 menu_display(struct menu *, int, int, struct cmdq_item *,
3433 		    u_int, u_int, struct client *, enum box_lines, const char *,
3434 		    const char *, const char *, struct cmd_find_state *,
3435 		    menu_choice_cb, void *);
3436 struct screen	*menu_mode_cb(struct client *, void *, u_int *, u_int *);
3437 void		 menu_check_cb(struct client *, void *, u_int, u_int, u_int,
3438 		    struct overlay_ranges *);
3439 void		 menu_draw_cb(struct client *, void *,
3440 		    struct screen_redraw_ctx *);
3441 void		 menu_free_cb(struct client *, void *);
3442 int		 menu_key_cb(struct client *, void *, struct key_event *);
3443 
3444 /* popup.c */
3445 #define POPUP_CLOSEEXIT 0x1
3446 #define POPUP_CLOSEEXITZERO 0x2
3447 #define POPUP_INTERNAL 0x4
3448 typedef void (*popup_close_cb)(int, void *);
3449 typedef void (*popup_finish_edit_cb)(char *, size_t, void *);
3450 int		 popup_display(int, enum box_lines, struct cmdq_item *, u_int,
3451                     u_int, u_int, u_int, struct environ *, const char *, int,
3452                     char **, const char *, const char *, struct client *,
3453                     struct session *, const char *, const char *,
3454                     popup_close_cb, void *);
3455 int		 popup_editor(struct client *, const char *, size_t,
3456 		    popup_finish_edit_cb, void *);
3457 
3458 /* style.c */
3459 int		 style_parse(struct style *,const struct grid_cell *,
3460 		     const char *);
3461 const char	*style_tostring(struct style *);
3462 void		 style_add(struct grid_cell *, struct options *,
3463 		     const char *, struct format_tree *);
3464 void		 style_apply(struct grid_cell *, struct options *,
3465 		     const char *, struct format_tree *);
3466 void		 style_set(struct style *, const struct grid_cell *);
3467 void		 style_copy(struct style *, struct style *);
3468 
3469 /* spawn.c */
3470 struct winlink	*spawn_window(struct spawn_context *, char **);
3471 struct window_pane *spawn_pane(struct spawn_context *, char **);
3472 
3473 /* regsub.c */
3474 char		*regsub(const char *, const char *, const char *, int);
3475 
3476 /* server-acl.c */
3477 void			 server_acl_init(void);
3478 struct server_acl_user	*server_acl_user_find(uid_t);
3479 void 			 server_acl_display(struct cmdq_item *);
3480 void			 server_acl_user_allow(uid_t);
3481 void			 server_acl_user_deny(uid_t);
3482 void			 server_acl_user_allow_write(uid_t);
3483 void			 server_acl_user_deny_write(uid_t);
3484 int			 server_acl_join(struct client *);
3485 uid_t			 server_acl_get_uid(struct server_acl_user *);
3486 
3487 /* hyperlink.c */
3488 u_int	 		 hyperlinks_put(struct hyperlinks *, const char *,
3489 			     const char *);
3490 int			 hyperlinks_get(struct hyperlinks *, u_int,
3491 			     const char **, const char **, const char **);
3492 struct hyperlinks	*hyperlinks_init(void);
3493 struct hyperlinks	*hyperlinks_copy(struct hyperlinks *);
3494 void			 hyperlinks_reset(struct hyperlinks *);
3495 void			 hyperlinks_free(struct hyperlinks *);
3496 
3497 #endif /* TMUX_H */
3498