Annotation of src/usr.bin/tmux/tty-keys.c, Revision 1.169
1.169 ! nicm 1: /* $OpenBSD: tty-keys.c,v 1.168 2023/09/02 20:03:10 nicm Exp $ */
1.1 nicm 2:
3: /*
1.84 nicm 4: * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
1.1 nicm 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: #include <sys/types.h>
20: #include <sys/time.h>
21:
1.104 nicm 22: #include <netinet/in.h>
23:
1.133 nicm 24: #include <ctype.h>
1.35 nicm 25: #include <limits.h>
1.104 nicm 26: #include <resolv.h>
1.35 nicm 27: #include <stdlib.h>
1.1 nicm 28: #include <string.h>
1.3 nicm 29: #include <termios.h>
30: #include <unistd.h>
1.1 nicm 31:
32: #include "tmux.h"
33:
1.9 nicm 34: /*
1.50 nicm 35: * Handle keys input from the outside terminal. tty_default_*_keys[] are a base
36: * table of supported keys which are looked up in terminfo(5) and translated
37: * into a ternary tree.
1.9 nicm 38: */
39:
1.86 nicm 40: static void tty_keys_add1(struct tty_key **, const char *, key_code);
41: static void tty_keys_add(struct tty *, const char *, key_code);
42: static void tty_keys_free1(struct tty_key *);
43: static struct tty_key *tty_keys_find1(struct tty_key *, const char *, size_t,
1.76 nicm 44: size_t *);
1.86 nicm 45: static struct tty_key *tty_keys_find(struct tty *, const char *, size_t,
46: size_t *);
47: static int tty_keys_next1(struct tty *, const char *, size_t, key_code *,
1.87 nicm 48: size_t *, int);
1.86 nicm 49: static void tty_keys_callback(int, short, void *);
1.133 nicm 50: static int tty_keys_extended_key(struct tty *, const char *, size_t,
51: size_t *, key_code *);
1.111 nicm 52: static int tty_keys_mouse(struct tty *, const char *, size_t, size_t *,
53: struct mouse_event *);
1.104 nicm 54: static int tty_keys_clipboard(struct tty *, const char *, size_t,
55: size_t *);
1.91 nicm 56: static int tty_keys_device_attributes(struct tty *, const char *, size_t,
57: size_t *);
1.161 nicm 58: static int tty_keys_device_attributes2(struct tty *, const char *, size_t,
59: size_t *);
1.128 nicm 60: static int tty_keys_extended_device_attributes(struct tty *, const char *,
1.119 nicm 61: size_t, size_t *);
1.163 nicm 62: static int tty_keys_colours(struct tty *, const char *, size_t, size_t *);
1.150 nicm 63:
64: /* A key tree entry. */
65: struct tty_key {
66: char ch;
67: key_code key;
68:
69: struct tty_key *left;
70: struct tty_key *right;
71:
72: struct tty_key *next;
73: };
1.1 nicm 74:
1.48 nicm 75: /* Default raw keys. */
76: struct tty_default_key_raw {
1.1 nicm 77: const char *string;
1.143 nicm 78: key_code key;
1.1 nicm 79: };
1.90 nicm 80: static const struct tty_default_key_raw tty_default_raw_keys[] = {
1.125 nicm 81: /* Application escape. */
82: { "\033O[", '\033' },
83:
1.1 nicm 84: /*
1.8 nicm 85: * Numeric keypad. Just use the vt100 escape sequences here and always
86: * put the terminal into keypad_xmit mode. Translation of numbers
87: * mode/applications mode is done in input-keys.c.
1.1 nicm 88: */
1.132 nicm 89: { "\033Oo", KEYC_KP_SLASH|KEYC_KEYPAD },
90: { "\033Oj", KEYC_KP_STAR|KEYC_KEYPAD },
91: { "\033Om", KEYC_KP_MINUS|KEYC_KEYPAD },
92: { "\033Ow", KEYC_KP_SEVEN|KEYC_KEYPAD },
93: { "\033Ox", KEYC_KP_EIGHT|KEYC_KEYPAD },
94: { "\033Oy", KEYC_KP_NINE|KEYC_KEYPAD },
95: { "\033Ok", KEYC_KP_PLUS|KEYC_KEYPAD },
96: { "\033Ot", KEYC_KP_FOUR|KEYC_KEYPAD },
97: { "\033Ou", KEYC_KP_FIVE|KEYC_KEYPAD },
98: { "\033Ov", KEYC_KP_SIX|KEYC_KEYPAD },
99: { "\033Oq", KEYC_KP_ONE|KEYC_KEYPAD },
100: { "\033Or", KEYC_KP_TWO|KEYC_KEYPAD },
101: { "\033Os", KEYC_KP_THREE|KEYC_KEYPAD },
102: { "\033OM", KEYC_KP_ENTER|KEYC_KEYPAD },
103: { "\033Op", KEYC_KP_ZERO|KEYC_KEYPAD },
104: { "\033On", KEYC_KP_PERIOD|KEYC_KEYPAD },
1.10 nicm 105:
1.29 nicm 106: /* Arrow keys. */
1.132 nicm 107: { "\033OA", KEYC_UP|KEYC_CURSOR },
108: { "\033OB", KEYC_DOWN|KEYC_CURSOR },
109: { "\033OC", KEYC_RIGHT|KEYC_CURSOR },
110: { "\033OD", KEYC_LEFT|KEYC_CURSOR },
111:
112: { "\033[A", KEYC_UP|KEYC_CURSOR },
113: { "\033[B", KEYC_DOWN|KEYC_CURSOR },
114: { "\033[C", KEYC_RIGHT|KEYC_CURSOR },
115: { "\033[D", KEYC_LEFT|KEYC_CURSOR },
1.57 nicm 116:
1.142 nicm 117: /*
118: * Meta arrow keys. These do not get the IMPLIED_META flag so they
119: * don't match the xterm-style meta keys in the output tree - Escape+Up
120: * should stay as Escape+Up and not become M-Up.
121: */
122: { "\033\033OA", KEYC_UP|KEYC_CURSOR|KEYC_META },
123: { "\033\033OB", KEYC_DOWN|KEYC_CURSOR|KEYC_META },
124: { "\033\033OC", KEYC_RIGHT|KEYC_CURSOR|KEYC_META },
125: { "\033\033OD", KEYC_LEFT|KEYC_CURSOR|KEYC_META },
126:
127: { "\033\033[A", KEYC_UP|KEYC_CURSOR|KEYC_META },
128: { "\033\033[B", KEYC_DOWN|KEYC_CURSOR|KEYC_META },
129: { "\033\033[C", KEYC_RIGHT|KEYC_CURSOR|KEYC_META },
130: { "\033\033[D", KEYC_LEFT|KEYC_CURSOR|KEYC_META },
1.140 nicm 131:
1.157 nicm 132: /* Other xterm keys. */
1.57 nicm 133: { "\033OH", KEYC_HOME },
134: { "\033OF", KEYC_END },
135:
1.140 nicm 136: { "\033\033OH", KEYC_HOME|KEYC_META|KEYC_IMPLIED_META },
137: { "\033\033OF", KEYC_END|KEYC_META|KEYC_IMPLIED_META },
138:
1.57 nicm 139: { "\033[H", KEYC_HOME },
140: { "\033[F", KEYC_END },
1.140 nicm 141:
142: { "\033\033[H", KEYC_HOME|KEYC_META|KEYC_IMPLIED_META },
143: { "\033\033[F", KEYC_END|KEYC_META|KEYC_IMPLIED_META },
1.21 nicm 144:
1.157 nicm 145: /* rxvt arrow keys. */
1.48 nicm 146: { "\033Oa", KEYC_UP|KEYC_CTRL },
147: { "\033Ob", KEYC_DOWN|KEYC_CTRL },
148: { "\033Oc", KEYC_RIGHT|KEYC_CTRL },
149: { "\033Od", KEYC_LEFT|KEYC_CTRL },
150:
151: { "\033[a", KEYC_UP|KEYC_SHIFT },
152: { "\033[b", KEYC_DOWN|KEYC_SHIFT },
153: { "\033[c", KEYC_RIGHT|KEYC_SHIFT },
154: { "\033[d", KEYC_LEFT|KEYC_SHIFT },
155:
1.157 nicm 156: /* rxvt function keys. */
157: { "\033[11~", KEYC_F1 },
158: { "\033[12~", KEYC_F2 },
159: { "\033[13~", KEYC_F3 },
160: { "\033[14~", KEYC_F4 },
161: { "\033[15~", KEYC_F5 },
162: { "\033[17~", KEYC_F6 },
163: { "\033[18~", KEYC_F7 },
164: { "\033[19~", KEYC_F8 },
165: { "\033[20~", KEYC_F9 },
166: { "\033[21~", KEYC_F10 },
167:
168: { "\033[23~", KEYC_F1|KEYC_SHIFT },
169: { "\033[24~", KEYC_F2|KEYC_SHIFT },
170: { "\033[25~", KEYC_F3|KEYC_SHIFT },
171: { "\033[26~", KEYC_F4|KEYC_SHIFT },
172: { "\033[28~", KEYC_F5|KEYC_SHIFT },
173: { "\033[29~", KEYC_F6|KEYC_SHIFT },
174: { "\033[31~", KEYC_F7|KEYC_SHIFT },
175: { "\033[32~", KEYC_F8|KEYC_SHIFT },
176: { "\033[33~", KEYC_F9|KEYC_SHIFT },
177: { "\033[34~", KEYC_F10|KEYC_SHIFT },
178: { "\033[23$", KEYC_F11|KEYC_SHIFT },
179: { "\033[24$", KEYC_F12|KEYC_SHIFT },
180:
1.48 nicm 181: { "\033[11^", KEYC_F1|KEYC_CTRL },
182: { "\033[12^", KEYC_F2|KEYC_CTRL },
183: { "\033[13^", KEYC_F3|KEYC_CTRL },
184: { "\033[14^", KEYC_F4|KEYC_CTRL },
185: { "\033[15^", KEYC_F5|KEYC_CTRL },
186: { "\033[17^", KEYC_F6|KEYC_CTRL },
187: { "\033[18^", KEYC_F7|KEYC_CTRL },
188: { "\033[19^", KEYC_F8|KEYC_CTRL },
189: { "\033[20^", KEYC_F9|KEYC_CTRL },
190: { "\033[21^", KEYC_F10|KEYC_CTRL },
191: { "\033[23^", KEYC_F11|KEYC_CTRL },
192: { "\033[24^", KEYC_F12|KEYC_CTRL },
193:
194: { "\033[11@", KEYC_F1|KEYC_CTRL|KEYC_SHIFT },
195: { "\033[12@", KEYC_F2|KEYC_CTRL|KEYC_SHIFT },
196: { "\033[13@", KEYC_F3|KEYC_CTRL|KEYC_SHIFT },
197: { "\033[14@", KEYC_F4|KEYC_CTRL|KEYC_SHIFT },
198: { "\033[15@", KEYC_F5|KEYC_CTRL|KEYC_SHIFT },
199: { "\033[17@", KEYC_F6|KEYC_CTRL|KEYC_SHIFT },
200: { "\033[18@", KEYC_F7|KEYC_CTRL|KEYC_SHIFT },
201: { "\033[19@", KEYC_F8|KEYC_CTRL|KEYC_SHIFT },
202: { "\033[20@", KEYC_F9|KEYC_CTRL|KEYC_SHIFT },
203: { "\033[21@", KEYC_F10|KEYC_CTRL|KEYC_SHIFT },
204: { "\033[23@", KEYC_F11|KEYC_CTRL|KEYC_SHIFT },
205: { "\033[24@", KEYC_F12|KEYC_CTRL|KEYC_SHIFT },
1.56 nicm 206:
207: /* Focus tracking. */
208: { "\033[I", KEYC_FOCUS_IN },
209: { "\033[O", KEYC_FOCUS_OUT },
1.98 nicm 210:
211: /* Paste keys. */
212: { "\033[200~", KEYC_PASTE_START },
213: { "\033[201~", KEYC_PASTE_END },
1.159 nicm 214:
215: /* Extended keys. */
1.160 nicm 216: { "\033[1;5Z", '\011'|KEYC_CTRL|KEYC_SHIFT },
1.48 nicm 217: };
1.29 nicm 218:
1.132 nicm 219: /* Default xterm keys. */
220: struct tty_default_key_xterm {
221: const char *template;
222: key_code key;
223: };
224: static const struct tty_default_key_xterm tty_default_xterm_keys[] = {
225: { "\033[1;_P", KEYC_F1 },
226: { "\033O1;_P", KEYC_F1 },
227: { "\033O_P", KEYC_F1 },
228: { "\033[1;_Q", KEYC_F2 },
229: { "\033O1;_Q", KEYC_F2 },
230: { "\033O_Q", KEYC_F2 },
231: { "\033[1;_R", KEYC_F3 },
232: { "\033O1;_R", KEYC_F3 },
233: { "\033O_R", KEYC_F3 },
234: { "\033[1;_S", KEYC_F4 },
235: { "\033O1;_S", KEYC_F4 },
236: { "\033O_S", KEYC_F4 },
237: { "\033[15;_~", KEYC_F5 },
238: { "\033[17;_~", KEYC_F6 },
239: { "\033[18;_~", KEYC_F7 },
240: { "\033[19;_~", KEYC_F8 },
241: { "\033[20;_~", KEYC_F9 },
242: { "\033[21;_~", KEYC_F10 },
243: { "\033[23;_~", KEYC_F11 },
244: { "\033[24;_~", KEYC_F12 },
245: { "\033[1;_A", KEYC_UP },
246: { "\033[1;_B", KEYC_DOWN },
247: { "\033[1;_C", KEYC_RIGHT },
248: { "\033[1;_D", KEYC_LEFT },
249: { "\033[1;_H", KEYC_HOME },
250: { "\033[1;_F", KEYC_END },
251: { "\033[5;_~", KEYC_PPAGE },
252: { "\033[6;_~", KEYC_NPAGE },
253: { "\033[2;_~", KEYC_IC },
254: { "\033[3;_~", KEYC_DC },
255: };
256: static const key_code tty_default_xterm_modifiers[] = {
257: 0,
258: 0,
1.135 nicm 259: KEYC_SHIFT,
260: KEYC_META|KEYC_IMPLIED_META,
261: KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META,
262: KEYC_CTRL,
263: KEYC_SHIFT|KEYC_CTRL,
264: KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL,
1.147 nicm 265: KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL,
266: KEYC_META|KEYC_IMPLIED_META
1.132 nicm 267: };
268:
1.103 nicm 269: /*
1.132 nicm 270: * Default terminfo(5) keys. Any keys that have builtin modifiers (that is,
271: * where the key itself contains the modifiers) has the KEYC_XTERM flag set so
272: * a leading escape is not treated as meta (and probably removed).
1.103 nicm 273: */
1.48 nicm 274: struct tty_default_key_code {
275: enum tty_code_code code;
1.143 nicm 276: key_code key;
1.48 nicm 277: };
1.90 nicm 278: static const struct tty_default_key_code tty_default_code_keys[] = {
1.29 nicm 279: /* Function keys. */
1.48 nicm 280: { TTYC_KF1, KEYC_F1 },
281: { TTYC_KF2, KEYC_F2 },
282: { TTYC_KF3, KEYC_F3 },
283: { TTYC_KF4, KEYC_F4 },
284: { TTYC_KF5, KEYC_F5 },
285: { TTYC_KF6, KEYC_F6 },
286: { TTYC_KF7, KEYC_F7 },
287: { TTYC_KF8, KEYC_F8 },
288: { TTYC_KF9, KEYC_F9 },
289: { TTYC_KF10, KEYC_F10 },
290: { TTYC_KF11, KEYC_F11 },
291: { TTYC_KF12, KEYC_F12 },
1.70 nicm 292:
1.135 nicm 293: { TTYC_KF13, KEYC_F1|KEYC_SHIFT },
294: { TTYC_KF14, KEYC_F2|KEYC_SHIFT },
295: { TTYC_KF15, KEYC_F3|KEYC_SHIFT },
296: { TTYC_KF16, KEYC_F4|KEYC_SHIFT },
297: { TTYC_KF17, KEYC_F5|KEYC_SHIFT },
298: { TTYC_KF18, KEYC_F6|KEYC_SHIFT },
299: { TTYC_KF19, KEYC_F7|KEYC_SHIFT },
300: { TTYC_KF20, KEYC_F8|KEYC_SHIFT },
301: { TTYC_KF21, KEYC_F9|KEYC_SHIFT },
302: { TTYC_KF22, KEYC_F10|KEYC_SHIFT },
303: { TTYC_KF23, KEYC_F11|KEYC_SHIFT },
304: { TTYC_KF24, KEYC_F12|KEYC_SHIFT },
305:
306: { TTYC_KF25, KEYC_F1|KEYC_CTRL },
307: { TTYC_KF26, KEYC_F2|KEYC_CTRL },
308: { TTYC_KF27, KEYC_F3|KEYC_CTRL },
309: { TTYC_KF28, KEYC_F4|KEYC_CTRL },
310: { TTYC_KF29, KEYC_F5|KEYC_CTRL },
311: { TTYC_KF30, KEYC_F6|KEYC_CTRL },
312: { TTYC_KF31, KEYC_F7|KEYC_CTRL },
313: { TTYC_KF32, KEYC_F8|KEYC_CTRL },
314: { TTYC_KF33, KEYC_F9|KEYC_CTRL },
315: { TTYC_KF34, KEYC_F10|KEYC_CTRL },
316: { TTYC_KF35, KEYC_F11|KEYC_CTRL },
317: { TTYC_KF36, KEYC_F12|KEYC_CTRL },
318:
319: { TTYC_KF37, KEYC_F1|KEYC_SHIFT|KEYC_CTRL },
320: { TTYC_KF38, KEYC_F2|KEYC_SHIFT|KEYC_CTRL },
321: { TTYC_KF39, KEYC_F3|KEYC_SHIFT|KEYC_CTRL },
322: { TTYC_KF40, KEYC_F4|KEYC_SHIFT|KEYC_CTRL },
323: { TTYC_KF41, KEYC_F5|KEYC_SHIFT|KEYC_CTRL },
324: { TTYC_KF42, KEYC_F6|KEYC_SHIFT|KEYC_CTRL },
325: { TTYC_KF43, KEYC_F7|KEYC_SHIFT|KEYC_CTRL },
326: { TTYC_KF44, KEYC_F8|KEYC_SHIFT|KEYC_CTRL },
327: { TTYC_KF45, KEYC_F9|KEYC_SHIFT|KEYC_CTRL },
328: { TTYC_KF46, KEYC_F10|KEYC_SHIFT|KEYC_CTRL },
329: { TTYC_KF47, KEYC_F11|KEYC_SHIFT|KEYC_CTRL },
330: { TTYC_KF48, KEYC_F12|KEYC_SHIFT|KEYC_CTRL },
331:
332: { TTYC_KF49, KEYC_F1|KEYC_META|KEYC_IMPLIED_META },
333: { TTYC_KF50, KEYC_F2|KEYC_META|KEYC_IMPLIED_META },
334: { TTYC_KF51, KEYC_F3|KEYC_META|KEYC_IMPLIED_META },
335: { TTYC_KF52, KEYC_F4|KEYC_META|KEYC_IMPLIED_META },
336: { TTYC_KF53, KEYC_F5|KEYC_META|KEYC_IMPLIED_META },
337: { TTYC_KF54, KEYC_F6|KEYC_META|KEYC_IMPLIED_META },
338: { TTYC_KF55, KEYC_F7|KEYC_META|KEYC_IMPLIED_META },
339: { TTYC_KF56, KEYC_F8|KEYC_META|KEYC_IMPLIED_META },
340: { TTYC_KF57, KEYC_F9|KEYC_META|KEYC_IMPLIED_META },
341: { TTYC_KF58, KEYC_F10|KEYC_META|KEYC_IMPLIED_META },
342: { TTYC_KF59, KEYC_F11|KEYC_META|KEYC_IMPLIED_META },
343: { TTYC_KF60, KEYC_F12|KEYC_META|KEYC_IMPLIED_META },
344:
345: { TTYC_KF61, KEYC_F1|KEYC_META|KEYC_IMPLIED_META|KEYC_SHIFT },
346: { TTYC_KF62, KEYC_F2|KEYC_META|KEYC_IMPLIED_META|KEYC_SHIFT },
347: { TTYC_KF63, KEYC_F3|KEYC_META|KEYC_IMPLIED_META|KEYC_SHIFT },
1.70 nicm 348:
1.48 nicm 349: { TTYC_KICH1, KEYC_IC },
350: { TTYC_KDCH1, KEYC_DC },
351: { TTYC_KHOME, KEYC_HOME },
352: { TTYC_KEND, KEYC_END },
353: { TTYC_KNP, KEYC_NPAGE },
354: { TTYC_KPP, KEYC_PPAGE },
355: { TTYC_KCBT, KEYC_BTAB },
1.29 nicm 356:
357: /* Arrow keys from terminfo. */
1.132 nicm 358: { TTYC_KCUU1, KEYC_UP|KEYC_CURSOR },
359: { TTYC_KCUD1, KEYC_DOWN|KEYC_CURSOR },
360: { TTYC_KCUB1, KEYC_LEFT|KEYC_CURSOR },
361: { TTYC_KCUF1, KEYC_RIGHT|KEYC_CURSOR },
1.29 nicm 362:
1.103 nicm 363: /* Key and modifier capabilities. */
1.135 nicm 364: { TTYC_KDC2, KEYC_DC|KEYC_SHIFT },
365: { TTYC_KDC3, KEYC_DC|KEYC_META|KEYC_IMPLIED_META },
366: { TTYC_KDC4, KEYC_DC|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META },
367: { TTYC_KDC5, KEYC_DC|KEYC_CTRL },
368: { TTYC_KDC6, KEYC_DC|KEYC_SHIFT|KEYC_CTRL },
369: { TTYC_KDC7, KEYC_DC|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL },
370: { TTYC_KIND, KEYC_DOWN|KEYC_SHIFT },
371: { TTYC_KDN2, KEYC_DOWN|KEYC_SHIFT },
372: { TTYC_KDN3, KEYC_DOWN|KEYC_META|KEYC_IMPLIED_META },
373: { TTYC_KDN4, KEYC_DOWN|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META },
374: { TTYC_KDN5, KEYC_DOWN|KEYC_CTRL },
375: { TTYC_KDN6, KEYC_DOWN|KEYC_SHIFT|KEYC_CTRL },
376: { TTYC_KDN7, KEYC_DOWN|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL },
377: { TTYC_KEND2, KEYC_END|KEYC_SHIFT },
378: { TTYC_KEND3, KEYC_END|KEYC_META|KEYC_IMPLIED_META },
379: { TTYC_KEND4, KEYC_END|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META },
380: { TTYC_KEND5, KEYC_END|KEYC_CTRL },
381: { TTYC_KEND6, KEYC_END|KEYC_SHIFT|KEYC_CTRL },
382: { TTYC_KEND7, KEYC_END|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL },
383: { TTYC_KHOM2, KEYC_HOME|KEYC_SHIFT },
384: { TTYC_KHOM3, KEYC_HOME|KEYC_META|KEYC_IMPLIED_META },
385: { TTYC_KHOM4, KEYC_HOME|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META },
386: { TTYC_KHOM5, KEYC_HOME|KEYC_CTRL },
387: { TTYC_KHOM6, KEYC_HOME|KEYC_SHIFT|KEYC_CTRL },
388: { TTYC_KHOM7, KEYC_HOME|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL },
389: { TTYC_KIC2, KEYC_IC|KEYC_SHIFT },
390: { TTYC_KIC3, KEYC_IC|KEYC_META|KEYC_IMPLIED_META },
391: { TTYC_KIC4, KEYC_IC|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META },
392: { TTYC_KIC5, KEYC_IC|KEYC_CTRL },
393: { TTYC_KIC6, KEYC_IC|KEYC_SHIFT|KEYC_CTRL },
394: { TTYC_KIC7, KEYC_IC|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL },
395: { TTYC_KLFT2, KEYC_LEFT|KEYC_SHIFT },
396: { TTYC_KLFT3, KEYC_LEFT|KEYC_META|KEYC_IMPLIED_META },
397: { TTYC_KLFT4, KEYC_LEFT|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META },
398: { TTYC_KLFT5, KEYC_LEFT|KEYC_CTRL },
399: { TTYC_KLFT6, KEYC_LEFT|KEYC_SHIFT|KEYC_CTRL },
400: { TTYC_KLFT7, KEYC_LEFT|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL },
401: { TTYC_KNXT2, KEYC_NPAGE|KEYC_SHIFT },
402: { TTYC_KNXT3, KEYC_NPAGE|KEYC_META|KEYC_IMPLIED_META },
403: { TTYC_KNXT4, KEYC_NPAGE|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META },
404: { TTYC_KNXT5, KEYC_NPAGE|KEYC_CTRL },
405: { TTYC_KNXT6, KEYC_NPAGE|KEYC_SHIFT|KEYC_CTRL },
406: { TTYC_KNXT7, KEYC_NPAGE|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL },
407: { TTYC_KPRV2, KEYC_PPAGE|KEYC_SHIFT },
408: { TTYC_KPRV3, KEYC_PPAGE|KEYC_META|KEYC_IMPLIED_META },
409: { TTYC_KPRV4, KEYC_PPAGE|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META },
410: { TTYC_KPRV5, KEYC_PPAGE|KEYC_CTRL },
411: { TTYC_KPRV6, KEYC_PPAGE|KEYC_SHIFT|KEYC_CTRL },
412: { TTYC_KPRV7, KEYC_PPAGE|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL },
413: { TTYC_KRIT2, KEYC_RIGHT|KEYC_SHIFT },
414: { TTYC_KRIT3, KEYC_RIGHT|KEYC_META|KEYC_IMPLIED_META },
415: { TTYC_KRIT4, KEYC_RIGHT|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META },
416: { TTYC_KRIT5, KEYC_RIGHT|KEYC_CTRL },
417: { TTYC_KRIT6, KEYC_RIGHT|KEYC_SHIFT|KEYC_CTRL },
418: { TTYC_KRIT7, KEYC_RIGHT|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL },
419: { TTYC_KRI, KEYC_UP|KEYC_SHIFT },
420: { TTYC_KUP2, KEYC_UP|KEYC_SHIFT },
421: { TTYC_KUP3, KEYC_UP|KEYC_META|KEYC_IMPLIED_META },
422: { TTYC_KUP4, KEYC_UP|KEYC_SHIFT|KEYC_META|KEYC_IMPLIED_META },
423: { TTYC_KUP5, KEYC_UP|KEYC_CTRL },
424: { TTYC_KUP6, KEYC_UP|KEYC_SHIFT|KEYC_CTRL },
425: { TTYC_KUP7, KEYC_UP|KEYC_META|KEYC_IMPLIED_META|KEYC_CTRL },
1.1 nicm 426: };
427:
1.48 nicm 428: /* Add key to tree. */
1.86 nicm 429: static void
1.76 nicm 430: tty_keys_add(struct tty *tty, const char *s, key_code key)
1.16 nicm 431: {
1.29 nicm 432: struct tty_key *tk;
433: size_t size;
1.143 nicm 434: const char *keystr;
1.1 nicm 435:
1.135 nicm 436: keystr = key_string_lookup_key(key, 1);
1.29 nicm 437: if ((tk = tty_keys_find(tty, s, strlen(s), &size)) == NULL) {
1.76 nicm 438: log_debug("new key %s: 0x%llx (%s)", s, key, keystr);
1.16 nicm 439: tty_keys_add1(&tty->key_tree, s, key);
1.29 nicm 440: } else {
1.76 nicm 441: log_debug("replacing key %s: 0x%llx (%s)", s, key, keystr);
1.29 nicm 442: tk->key = key;
1.16 nicm 443: }
1.1 nicm 444: }
445:
1.16 nicm 446: /* Add next node to the tree. */
1.86 nicm 447: static void
1.76 nicm 448: tty_keys_add1(struct tty_key **tkp, const char *s, key_code key)
1.1 nicm 449: {
1.16 nicm 450: struct tty_key *tk;
1.1 nicm 451:
1.16 nicm 452: /* Allocate a tree entry if there isn't one already. */
453: tk = *tkp;
454: if (tk == NULL) {
455: tk = *tkp = xcalloc(1, sizeof *tk);
456: tk->ch = *s;
1.83 nicm 457: tk->key = KEYC_UNKNOWN;
1.16 nicm 458: }
459:
460: /* Find the next entry. */
461: if (*s == tk->ch) {
462: /* Move forward in string. */
463: s++;
464:
465: /* If this is the end of the string, no more is necessary. */
466: if (*s == '\0') {
467: tk->key = key;
468: return;
469: }
470:
471: /* Use the child tree for the next character. */
472: tkp = &tk->next;
1.27 nicm 473: } else {
1.16 nicm 474: if (*s < tk->ch)
475: tkp = &tk->left;
476: else if (*s > tk->ch)
477: tkp = &tk->right;
478: }
479:
480: /* And recurse to add it. */
481: tty_keys_add1(tkp, s, key);
1.1 nicm 482: }
483:
1.16 nicm 484: /* Initialise a key tree from the table. */
1.1 nicm 485: void
1.48 nicm 486: tty_keys_build(struct tty *tty)
1.1 nicm 487: {
1.48 nicm 488: const struct tty_default_key_raw *tdkr;
1.132 nicm 489: const struct tty_default_key_xterm *tdkx;
1.48 nicm 490: const struct tty_default_key_code *tdkc;
1.143 nicm 491: u_int i, j;
1.109 nicm 492: const char *s;
1.99 nicm 493: struct options_entry *o;
1.107 nicm 494: struct options_array_item *a;
1.109 nicm 495: union options_value *ov;
1.132 nicm 496: char copy[16];
497: key_code key;
1.1 nicm 498:
1.48 nicm 499: if (tty->key_tree != NULL)
1.71 nicm 500: tty_keys_free(tty);
1.16 nicm 501: tty->key_tree = NULL;
1.1 nicm 502:
1.132 nicm 503: for (i = 0; i < nitems(tty_default_xterm_keys); i++) {
504: tdkx = &tty_default_xterm_keys[i];
505: for (j = 2; j < nitems(tty_default_xterm_modifiers); j++) {
506: strlcpy(copy, tdkx->template, sizeof copy);
507: copy[strcspn(copy, "_")] = '0' + j;
508:
509: key = tdkx->key|tty_default_xterm_modifiers[j];
510: tty_keys_add(tty, copy, key);
511: }
512: }
1.48 nicm 513: for (i = 0; i < nitems(tty_default_raw_keys); i++) {
514: tdkr = &tty_default_raw_keys[i];
515:
516: s = tdkr->string;
1.51 nicm 517: if (*s != '\0')
518: tty_keys_add(tty, s, tdkr->key);
1.48 nicm 519: }
520: for (i = 0; i < nitems(tty_default_code_keys); i++) {
521: tdkc = &tty_default_code_keys[i];
522:
523: s = tty_term_string(tty->term, tdkc->code);
1.51 nicm 524: if (*s != '\0')
525: tty_keys_add(tty, s, tdkc->key);
1.1 nicm 526:
1.99 nicm 527: }
528:
529: o = options_get(global_options, "user-keys");
1.107 nicm 530: if (o != NULL) {
531: a = options_array_first(o);
532: while (a != NULL) {
1.112 nicm 533: i = options_array_item_index(a);
1.109 nicm 534: ov = options_array_item_value(a);
1.110 nicm 535: tty_keys_add(tty, ov->string, KEYC_USER + i);
1.107 nicm 536: a = options_array_next(a);
1.99 nicm 537: }
1.1 nicm 538: }
539: }
540:
1.16 nicm 541: /* Free the entire key tree. */
1.1 nicm 542: void
543: tty_keys_free(struct tty *tty)
544: {
1.16 nicm 545: tty_keys_free1(tty->key_tree);
546: }
1.1 nicm 547:
1.16 nicm 548: /* Free a single key. */
1.86 nicm 549: static void
1.16 nicm 550: tty_keys_free1(struct tty_key *tk)
551: {
552: if (tk->next != NULL)
553: tty_keys_free1(tk->next);
554: if (tk->left != NULL)
555: tty_keys_free1(tk->left);
556: if (tk->right != NULL)
557: tty_keys_free1(tk->right);
1.42 nicm 558: free(tk);
1.1 nicm 559: }
560:
1.16 nicm 561: /* Lookup a key in the tree. */
1.86 nicm 562: static struct tty_key *
1.16 nicm 563: tty_keys_find(struct tty *tty, const char *buf, size_t len, size_t *size)
1.1 nicm 564: {
1.16 nicm 565: *size = 0;
566: return (tty_keys_find1(tty->key_tree, buf, len, size));
567: }
1.1 nicm 568:
1.16 nicm 569: /* Find the next node. */
1.86 nicm 570: static struct tty_key *
1.16 nicm 571: tty_keys_find1(struct tty_key *tk, const char *buf, size_t len, size_t *size)
572: {
1.106 nicm 573: /* If no data, no match. */
574: if (len == 0)
575: return (NULL);
576:
1.16 nicm 577: /* If the node is NULL, this is the end of the tree. No match. */
578: if (tk == NULL)
1.1 nicm 579: return (NULL);
580:
1.16 nicm 581: /* Pick the next in the sequence. */
582: if (tk->ch == *buf) {
583: /* Move forward in the string. */
584: buf++; len--;
585: (*size)++;
1.1 nicm 586:
1.16 nicm 587: /* At the end of the string, return the current node. */
1.83 nicm 588: if (len == 0 || (tk->next == NULL && tk->key != KEYC_UNKNOWN))
1.16 nicm 589: return (tk);
1.1 nicm 590:
1.16 nicm 591: /* Move into the next tree for the following character. */
592: tk = tk->next;
593: } else {
594: if (*buf < tk->ch)
595: tk = tk->left;
596: else if (*buf > tk->ch)
597: tk = tk->right;
1.1 nicm 598: }
599:
1.16 nicm 600: /* Move to the next in the tree. */
601: return (tty_keys_find1(tk, buf, len, size));
1.1 nicm 602: }
603:
1.86 nicm 604: /* Look up part of the next key. */
605: static int
606: tty_keys_next1(struct tty *tty, const char *buf, size_t len, key_code *key,
1.87 nicm 607: size_t *size, int expired)
1.86 nicm 608: {
1.94 nicm 609: struct client *c = tty->client;
1.86 nicm 610: struct tty_key *tk, *tk1;
611: struct utf8_data ud;
612: enum utf8_state more;
1.138 nicm 613: utf8_char uc;
1.86 nicm 614: u_int i;
615:
1.94 nicm 616: log_debug("%s: next key is %zu (%.*s) (expired=%d)", c->name, len,
617: (int)len, buf, expired);
1.86 nicm 618:
619: /* Is this a known key? */
620: tk = tty_keys_find(tty, buf, len, size);
1.87 nicm 621: if (tk != NULL && tk->key != KEYC_UNKNOWN) {
1.86 nicm 622: tk1 = tk;
623: do
1.94 nicm 624: log_debug("%s: keys in list: %#llx", c->name, tk1->key);
1.86 nicm 625: while ((tk1 = tk1->next) != NULL);
1.87 nicm 626: if (tk->next != NULL && !expired)
627: return (1);
1.86 nicm 628: *key = tk->key;
1.87 nicm 629: return (0);
1.86 nicm 630: }
1.97 nicm 631:
1.86 nicm 632: /* Is this valid UTF-8? */
633: more = utf8_open(&ud, (u_char)*buf);
634: if (more == UTF8_MORE) {
635: *size = ud.size;
1.87 nicm 636: if (len < ud.size) {
637: if (!expired)
638: return (1);
639: return (-1);
640: }
1.86 nicm 641: for (i = 1; i < ud.size; i++)
642: more = utf8_append(&ud, (u_char)buf[i]);
643: if (more != UTF8_DONE)
1.87 nicm 644: return (-1);
1.86 nicm 645:
1.138 nicm 646: if (utf8_from_data(&ud, &uc) != UTF8_DONE)
1.87 nicm 647: return (-1);
1.138 nicm 648: *key = uc;
1.86 nicm 649:
1.94 nicm 650: log_debug("%s: UTF-8 key %.*s %#llx", c->name, (int)ud.size,
1.138 nicm 651: ud.data, *key);
1.86 nicm 652: return (0);
653: }
654:
655: return (-1);
656: }
657:
1.111 nicm 658: /* Process at least one key in the buffer. Return 0 if no keys present. */
659: int
1.14 nicm 660: tty_keys_next(struct tty *tty)
1.1 nicm 661: {
1.111 nicm 662: struct client *c = tty->client;
663: struct timeval tv;
664: const char *buf;
665: size_t len, size;
666: cc_t bspace;
667: int delay, expired = 0, n;
668: key_code key;
669: struct mouse_event m = { 0 };
670: struct key_event *event;
1.1 nicm 671:
1.51 nicm 672: /* Get key buffer. */
1.93 nicm 673: buf = EVBUFFER_DATA(tty->in);
674: len = EVBUFFER_LENGTH(tty->in);
1.1 nicm 675: if (len == 0)
1.14 nicm 676: return (0);
1.94 nicm 677: log_debug("%s: keys are %zu (%.*s)", c->name, len, (int)len, buf);
1.1 nicm 678:
1.104 nicm 679: /* Is this a clipboard response? */
680: switch (tty_keys_clipboard(tty, buf, len, &size)) {
681: case 0: /* yes */
682: key = KEYC_UNKNOWN;
683: goto complete_key;
684: case -1: /* no, or not valid */
685: break;
686: case 1: /* partial */
687: goto partial_key;
688: }
689:
1.161 nicm 690: /* Is this a primary device attributes response? */
1.91 nicm 691: switch (tty_keys_device_attributes(tty, buf, len, &size)) {
692: case 0: /* yes */
693: key = KEYC_UNKNOWN;
694: goto complete_key;
695: case -1: /* no, or not valid */
696: break;
697: case 1: /* partial */
698: goto partial_key;
699: }
700:
1.161 nicm 701: /* Is this a secondary device attributes response? */
702: switch (tty_keys_device_attributes2(tty, buf, len, &size)) {
703: case 0: /* yes */
704: key = KEYC_UNKNOWN;
705: goto complete_key;
706: case -1: /* no, or not valid */
707: break;
708: case 1: /* partial */
709: goto partial_key;
710: }
711:
1.128 nicm 712: /* Is this an extended device attributes response? */
713: switch (tty_keys_extended_device_attributes(tty, buf, len, &size)) {
1.119 nicm 714: case 0: /* yes */
715: key = KEYC_UNKNOWN;
716: goto complete_key;
717: case -1: /* no, or not valid */
718: break;
719: case 1: /* partial */
720: goto partial_key;
721: }
722:
1.163 nicm 723: /* Is this a colours response? */
724: switch (tty_keys_colours(tty, buf, len, &size)) {
725: case 0: /* yes */
726: key = KEYC_UNKNOWN;
727: goto complete_key;
728: case -1: /* no, or not valid */
729: break;
730: case 1: /* partial */
731: goto partial_key;
732: }
733:
1.26 nicm 734: /* Is this a mouse key press? */
1.111 nicm 735: switch (tty_keys_mouse(tty, buf, len, &size, &m)) {
1.22 nicm 736: case 0: /* yes */
737: key = KEYC_MOUSE;
1.51 nicm 738: goto complete_key;
1.22 nicm 739: case -1: /* no, or not valid */
1.24 nicm 740: break;
1.67 nicm 741: case -2: /* yes, but we don't care. */
1.73 nicm 742: key = KEYC_MOUSE;
1.67 nicm 743: goto discard_key;
1.22 nicm 744: case 1: /* partial */
745: goto partial_key;
1.11 nicm 746: }
747:
1.133 nicm 748: /* Is this an extended key press? */
749: switch (tty_keys_extended_key(tty, buf, len, &size, &key)) {
750: case 0: /* yes */
751: goto complete_key;
752: case -1: /* no, or not valid */
753: break;
754: case 1: /* partial */
755: goto partial_key;
756: }
757:
1.86 nicm 758: first_key:
1.101 nicm 759: /* Try to lookup complete key. */
760: n = tty_keys_next1(tty, buf, len, &key, &size, expired);
761: if (n == 0) /* found */
762: goto complete_key;
763: if (n == 1)
764: goto partial_key;
765:
766: /*
767: * If not a complete key, look for key with an escape prefix (meta
768: * modifier).
769: */
1.105 nicm 770: if (*buf == '\033' && len > 1) {
1.87 nicm 771: /* Look for a key without the escape. */
772: n = tty_keys_next1(tty, buf + 1, len - 1, &key, &size, expired);
773: if (n == 0) { /* found */
1.135 nicm 774: if (key & KEYC_IMPLIED_META) {
1.97 nicm 775: /*
776: * We want the escape key as well as the xterm
777: * key, because the xterm sequence implicitly
778: * includes the escape (so if we see
779: * \033\033[1;3D we know it is an Escape
780: * followed by M-Left, not just M-Left).
781: */
782: key = '\033';
783: size = 1;
784: goto complete_key;
785: }
1.134 nicm 786: key |= KEYC_META;
1.87 nicm 787: size++;
788: goto complete_key;
789: }
790: if (n == 1) /* partial */
1.62 nicm 791: goto partial_key;
1.89 nicm 792: }
1.1 nicm 793:
1.89 nicm 794: /*
795: * At this point, we know the key is not partial (with or without
796: * escape). So pass it through even if the timer has not expired.
797: */
798: if (*buf == '\033' && len >= 2) {
1.134 nicm 799: key = (u_char)buf[1] | KEYC_META;
1.89 nicm 800: size = 2;
801: } else {
802: key = (u_char)buf[0];
803: size = 1;
1.76 nicm 804: }
1.51 nicm 805: goto complete_key;
806:
807: partial_key:
1.94 nicm 808: log_debug("%s: partial key %.*s", c->name, (int)len, buf);
1.14 nicm 809:
1.51 nicm 810: /* If timer is going, check for expiration. */
811: if (tty->flags & TTY_TIMER) {
812: if (evtimer_initialized(&tty->key_timer) &&
1.59 nicm 813: !evtimer_pending(&tty->key_timer, NULL)) {
814: expired = 1;
1.51 nicm 815: goto first_key;
1.59 nicm 816: }
1.39 nicm 817: return (0);
1.51 nicm 818: }
1.39 nicm 819:
1.51 nicm 820: /* Get the time period. */
1.75 nicm 821: delay = options_get_number(global_options, "escape-time");
1.156 nicm 822: if (delay == 0)
823: delay = 1;
1.28 nicm 824: tv.tv_sec = delay / 1000;
825: tv.tv_usec = (delay % 1000) * 1000L;
1.27 nicm 826:
1.51 nicm 827: /* Start the timer. */
1.36 nicm 828: if (event_initialized(&tty->key_timer))
829: evtimer_del(&tty->key_timer);
1.14 nicm 830: evtimer_set(&tty->key_timer, tty_keys_callback, tty);
831: evtimer_add(&tty->key_timer, &tv);
1.27 nicm 832:
1.51 nicm 833: tty->flags |= TTY_TIMER;
1.14 nicm 834: return (0);
1.1 nicm 835:
1.51 nicm 836: complete_key:
1.94 nicm 837: log_debug("%s: complete key %.*s %#llx", c->name, (int)size, buf, key);
1.88 nicm 838:
839: /*
840: * Check for backspace key using termios VERASE - the terminfo
841: * kbs entry is extremely unreliable, so cannot be safely
842: * used. termios should have a better idea.
843: */
844: bspace = tty->tio.c_cc[VERASE];
845: if (bspace != _POSIX_VDISABLE && (key & KEYC_MASK_KEY) == bspace)
1.135 nicm 846: key = (key & KEYC_MASK_MODIFIERS)|KEYC_BSPACE;
1.16 nicm 847:
1.51 nicm 848: /* Remove data from buffer. */
1.93 nicm 849: evbuffer_drain(tty->in, size);
1.16 nicm 850:
1.51 nicm 851: /* Remove key timer. */
1.36 nicm 852: if (event_initialized(&tty->key_timer))
853: evtimer_del(&tty->key_timer);
1.51 nicm 854: tty->flags &= ~TTY_TIMER;
1.56 nicm 855:
856: /* Check for focus events. */
1.148 nicm 857: if (key == KEYC_FOCUS_OUT) {
1.149 nicm 858: c->flags &= ~CLIENT_FOCUSED;
859: window_update_focus(c->session->curw->window);
1.148 nicm 860: notify_client("client-focus-out", c);
861: } else if (key == KEYC_FOCUS_IN) {
1.149 nicm 862: c->flags |= CLIENT_FOCUSED;
1.148 nicm 863: notify_client("client-focus-in", c);
1.149 nicm 864: window_update_focus(c->session->curw->window);
1.148 nicm 865: }
1.16 nicm 866:
1.51 nicm 867: /* Fire the key. */
1.111 nicm 868: if (key != KEYC_UNKNOWN) {
869: event = xmalloc(sizeof *event);
870: event->key = key;
871: memcpy(&event->m, &m, sizeof event->m);
1.113 nicm 872: if (!server_client_handle_key(c, event))
873: free(event);
1.111 nicm 874: }
1.16 nicm 875:
1.14 nicm 876: return (1);
1.67 nicm 877:
878: discard_key:
1.94 nicm 879: log_debug("%s: discard key %.*s %#llx", c->name, (int)size, buf, key);
1.67 nicm 880:
881: /* Remove data from buffer. */
1.93 nicm 882: evbuffer_drain(tty->in, size);
1.67 nicm 883:
884: return (1);
1.14 nicm 885: }
886:
1.16 nicm 887: /* Key timer callback. */
1.86 nicm 888: static void
1.81 nicm 889: tty_keys_callback(__unused int fd, __unused short events, void *data)
1.14 nicm 890: {
891: struct tty *tty = data;
892:
1.51 nicm 893: if (tty->flags & TTY_TIMER) {
894: while (tty_keys_next(tty))
895: ;
896: }
1.133 nicm 897: }
898:
899: /*
900: * Handle extended key input. This has two forms: \033[27;m;k~ and \033[k;mu,
901: * where k is key as a number and m is a modifier. Returns 0 for success, -1
902: * for failure, 1 for partial;
903: */
904: static int
905: tty_keys_extended_key(struct tty *tty, const char *buf, size_t len,
906: size_t *size, key_code *key)
907: {
908: struct client *c = tty->client;
909: size_t end;
910: u_int number, modifiers;
911: char tmp[64];
1.143 nicm 912: cc_t bspace;
913: key_code nkey;
1.144 nicm 914: key_code onlykey;
1.133 nicm 915:
916: *size = 0;
917:
918: /* First two bytes are always \033[. */
919: if (buf[0] != '\033')
920: return (-1);
921: if (len == 1)
922: return (1);
923: if (buf[1] != '[')
924: return (-1);
925: if (len == 2)
926: return (1);
927:
928: /*
929: * Look for a terminator. Stop at either '~' or anything that isn't a
930: * number or ';'.
931: */
932: for (end = 2; end < len && end != sizeof tmp; end++) {
933: if (buf[end] == '~')
934: break;
935: if (!isdigit((u_char)buf[end]) && buf[end] != ';')
936: break;
937: }
938: if (end == len)
939: return (1);
940: if (end == sizeof tmp || (buf[end] != '~' && buf[end] != 'u'))
941: return (-1);
942:
943: /* Copy to the buffer. */
944: memcpy(tmp, buf + 2, end);
945: tmp[end] = '\0';
946:
947: /* Try to parse either form of key. */
948: if (buf[end] == '~') {
949: if (sscanf(tmp, "27;%u;%u", &modifiers, &number) != 2)
950: return (-1);
951: } else {
952: if (sscanf(tmp ,"%u;%u", &number, &modifiers) != 2)
953: return (-1);
954: }
955: *size = end + 1;
956:
1.143 nicm 957: /* Store the key. */
958: bspace = tty->tio.c_cc[VERASE];
959: if (bspace != _POSIX_VDISABLE && number == bspace)
960: nkey = KEYC_BSPACE;
961: else
962: nkey = number;
963:
964: /* Update the modifiers. */
1.158 nicm 965: if (modifiers > 0) {
966: modifiers--;
967: if (modifiers & 1)
968: nkey |= KEYC_SHIFT;
969: if (modifiers & 2)
970: nkey |= (KEYC_META|KEYC_IMPLIED_META); /* Alt */
971: if (modifiers & 4)
972: nkey |= KEYC_CTRL;
973: if (modifiers & 8)
974: nkey |= (KEYC_META|KEYC_IMPLIED_META); /* Meta */
1.133 nicm 975: }
1.143 nicm 976:
1.144 nicm 977: /*
978: * Don't allow both KEYC_CTRL and as an implied modifier. Also convert
979: * C-X into C-x and so on.
980: */
1.145 nicm 981: if (nkey & KEYC_CTRL) {
1.144 nicm 982: onlykey = (nkey & KEYC_MASK_KEY);
1.147 nicm 983: if (onlykey < 32 &&
984: onlykey != 9 &&
985: onlykey != 13 &&
986: onlykey != 27)
1.146 nicm 987: /* nothing */;
988: else if (onlykey >= 97 && onlykey <= 122)
989: onlykey -= 96;
990: else if (onlykey >= 64 && onlykey <= 95)
991: onlykey -= 64;
992: else if (onlykey == 32)
993: onlykey = 0;
994: else if (onlykey == 63)
995: onlykey = 127;
996: else
997: onlykey |= KEYC_CTRL;
998: nkey = onlykey|((nkey & KEYC_MASK_MODIFIERS) & ~KEYC_CTRL);
1.143 nicm 999: }
1000:
1.133 nicm 1001: if (log_get_level() != 0) {
1002: log_debug("%s: extended key %.*s is %llx (%s)", c->name,
1.143 nicm 1003: (int)*size, buf, nkey, key_string_lookup_key(nkey, 1));
1.133 nicm 1004: }
1.160 nicm 1005: *key = nkey;
1.133 nicm 1006: return (0);
1.1 nicm 1007: }
1008:
1.27 nicm 1009: /*
1.22 nicm 1010: * Handle mouse key input. Returns 0 for success, -1 for failure, 1 for partial
1.166 nicm 1011: * (probably a mouse sequence but need more data), -2 if an invalid mouse
1012: * sequence.
1.22 nicm 1013: */
1.86 nicm 1014: static int
1.111 nicm 1015: tty_keys_mouse(struct tty *tty, const char *buf, size_t len, size_t *size,
1016: struct mouse_event *m)
1.1 nicm 1017: {
1.111 nicm 1018: struct client *c = tty->client;
1019: u_int i, x, y, b, sgr_b;
1020: u_char sgr_type, ch;
1.33 nicm 1021:
1.1 nicm 1022: /*
1.33 nicm 1023: * Standard mouse sequences are \033[M followed by three characters
1.55 nicm 1024: * indicating button, X and Y, all based at 32 with 1,1 top-left.
1.33 nicm 1025: *
1026: * UTF-8 mouse sequences are similar but the three are expressed as
1027: * UTF-8 characters.
1.55 nicm 1028: *
1029: * SGR extended mouse sequences are \033[< followed by three numbers in
1030: * decimal and separated by semicolons indicating button, X and Y. A
1031: * trailing 'M' is click or scroll and trailing 'm' release. All are
1032: * based at 0 with 1,1 top-left.
1.1 nicm 1033: */
1034:
1.22 nicm 1035: *size = 0;
1.72 nicm 1036: x = y = b = sgr_b = 0;
1037: sgr_type = ' ';
1.22 nicm 1038:
1.55 nicm 1039: /* First two bytes are always \033[. */
1.22 nicm 1040: if (buf[0] != '\033')
1041: return (-1);
1042: if (len == 1)
1043: return (1);
1044: if (buf[1] != '[')
1045: return (-1);
1046: if (len == 2)
1047: return (1);
1048:
1.55 nicm 1049: /*
1.82 nicm 1050: * Third byte is M in old standard (and UTF-8 extension which we do not
1051: * support), < in SGR extension.
1.55 nicm 1052: */
1053: if (buf[2] == 'M') {
1054: /* Read the three inputs. */
1055: *size = 3;
1056: for (i = 0; i < 3; i++) {
1057: if (len <= *size)
1058: return (1);
1.94 nicm 1059: ch = (u_char)buf[(*size)++];
1.55 nicm 1060: if (i == 0)
1.94 nicm 1061: b = ch;
1.55 nicm 1062: else if (i == 1)
1.94 nicm 1063: x = ch;
1.55 nicm 1064: else
1.94 nicm 1065: y = ch;
1.33 nicm 1066: }
1.94 nicm 1067: log_debug("%s: mouse input: %.*s", c->name, (int)*size, buf);
1.16 nicm 1068:
1.55 nicm 1069: /* Check and return the mouse input. */
1.155 nicm 1070: if (b < MOUSE_PARAM_BTN_OFF ||
1071: x < MOUSE_PARAM_POS_OFF ||
1072: y < MOUSE_PARAM_POS_OFF)
1.166 nicm 1073: return (-2);
1.155 nicm 1074: b -= MOUSE_PARAM_BTN_OFF;
1075: x -= MOUSE_PARAM_POS_OFF;
1076: y -= MOUSE_PARAM_POS_OFF;
1.55 nicm 1077: } else if (buf[2] == '<') {
1078: /* Read the three inputs. */
1079: *size = 3;
1080: while (1) {
1081: if (len <= *size)
1082: return (1);
1.94 nicm 1083: ch = (u_char)buf[(*size)++];
1084: if (ch == ';')
1.55 nicm 1085: break;
1.94 nicm 1086: if (ch < '0' || ch > '9')
1.55 nicm 1087: return (-1);
1.94 nicm 1088: sgr_b = 10 * sgr_b + (ch - '0');
1.55 nicm 1089: }
1090: while (1) {
1091: if (len <= *size)
1092: return (1);
1.94 nicm 1093: ch = (u_char)buf[(*size)++];
1094: if (ch == ';')
1.55 nicm 1095: break;
1.94 nicm 1096: if (ch < '0' || ch > '9')
1.55 nicm 1097: return (-1);
1.94 nicm 1098: x = 10 * x + (ch - '0');
1.55 nicm 1099: }
1100: while (1) {
1101: if (len <= *size)
1102: return (1);
1.94 nicm 1103: ch = (u_char)buf[(*size)++];
1104: if (ch == 'M' || ch == 'm')
1.55 nicm 1105: break;
1.94 nicm 1106: if (ch < '0' || ch > '9')
1.55 nicm 1107: return (-1);
1.94 nicm 1108: y = 10 * y + (ch - '0');
1.55 nicm 1109: }
1.94 nicm 1110: log_debug("%s: mouse input (SGR): %.*s", c->name, (int)*size,
1111: buf);
1.1 nicm 1112:
1.55 nicm 1113: /* Check and return the mouse input. */
1114: if (x < 1 || y < 1)
1.166 nicm 1115: return (-2);
1.55 nicm 1116: x--;
1117: y--;
1.72 nicm 1118: b = sgr_b;
1119:
1120: /* Type is M for press, m for release. */
1.94 nicm 1121: sgr_type = ch;
1.72 nicm 1122: if (sgr_type == 'm')
1.153 nicm 1123: b = 3;
1.67 nicm 1124:
1125: /*
1126: * Some terminals (like PuTTY 0.63) mistakenly send
1127: * button-release events for scroll-wheel button-press event.
1128: * Discard it before it reaches any program running inside
1129: * tmux.
1130: */
1.153 nicm 1131: if (sgr_type == 'm' && MOUSE_WHEEL(sgr_b))
1.67 nicm 1132: return (-2);
1.55 nicm 1133: } else
1.22 nicm 1134: return (-1);
1.45 nicm 1135:
1.72 nicm 1136: /* Fill mouse event. */
1.111 nicm 1137: m->lx = tty->mouse_last_x;
1.61 nicm 1138: m->x = x;
1.111 nicm 1139: m->ly = tty->mouse_last_y;
1.61 nicm 1140: m->y = y;
1.114 nicm 1141: m->lb = tty->mouse_last_b;
1.72 nicm 1142: m->b = b;
1143: m->sgr_type = sgr_type;
1144: m->sgr_b = sgr_b;
1.111 nicm 1145:
1146: /* Update last mouse state. */
1147: tty->mouse_last_x = x;
1148: tty->mouse_last_y = y;
1.114 nicm 1149: tty->mouse_last_b = b;
1.104 nicm 1150:
1151: return (0);
1152: }
1153:
1154: /*
1155: * Handle OSC 52 clipboard input. Returns 0 for success, -1 for failure, 1 for
1156: * partial.
1157: */
1158: static int
1.154 nicm 1159: tty_keys_clipboard(struct tty *tty, const char *buf, size_t len, size_t *size)
1.104 nicm 1160: {
1.154 nicm 1161: struct client *c = tty->client;
1162: struct window_pane *wp;
1.167 nicm 1163: size_t end, terminator = 0, needed;
1.154 nicm 1164: char *copy, *out;
1165: int outlen;
1166: u_int i;
1.104 nicm 1167:
1168: *size = 0;
1169:
1.128 nicm 1170: /* First five bytes are always \033]52;. */
1.104 nicm 1171: if (buf[0] != '\033')
1172: return (-1);
1173: if (len == 1)
1174: return (1);
1175: if (buf[1] != ']')
1176: return (-1);
1177: if (len == 2)
1178: return (1);
1179: if (buf[2] != '5')
1180: return (-1);
1181: if (len == 3)
1182: return (1);
1183: if (buf[3] != '2')
1184: return (-1);
1185: if (len == 4)
1186: return (1);
1187: if (buf[4] != ';')
1188: return (-1);
1189: if (len == 5)
1190: return (1);
1191:
1192: /* Find the terminator if any. */
1193: for (end = 5; end < len; end++) {
1194: if (buf[end] == '\007') {
1195: terminator = 1;
1196: break;
1197: }
1198: if (end > 5 && buf[end - 1] == '\033' && buf[end] == '\\') {
1199: terminator = 2;
1200: break;
1201: }
1202: }
1203: if (end == len)
1204: return (1);
1205: *size = end + terminator;
1206:
1207: /* Skip the initial part. */
1208: buf += 5;
1209: end -= 5;
1.151 nicm 1210:
1211: /* Adjust end so that it points to the start of the terminator. */
1212: end -= terminator - 1;
1.104 nicm 1213:
1214: /* Get the second argument. */
1215: while (end != 0 && *buf != ';') {
1216: buf++;
1217: end--;
1218: }
1219: if (end == 0 || end == 1)
1220: return (0);
1221: buf++;
1222: end--;
1.152 nicm 1223:
1224: /* If we did not request this, ignore it. */
1225: if (~tty->flags & TTY_OSC52QUERY)
1226: return (0);
1227: tty->flags &= ~TTY_OSC52QUERY;
1.154 nicm 1228: evtimer_del(&tty->clipboard_timer);
1.104 nicm 1229:
1230: /* It has to be a string so copy it. */
1231: copy = xmalloc(end + 1);
1232: memcpy(copy, buf, end);
1233: copy[end] = '\0';
1234:
1235: /* Convert from base64. */
1236: needed = (end / 4) * 3;
1237: out = xmalloc(needed);
1238: if ((outlen = b64_pton(copy, out, len)) == -1) {
1239: free(out);
1240: free(copy);
1241: return (0);
1242: }
1243: free(copy);
1244:
1.154 nicm 1245: /* Create a new paste buffer and forward to panes. */
1.104 nicm 1246: log_debug("%s: %.*s", __func__, outlen, out);
1.154 nicm 1247: if (c->flags & CLIENT_CLIPBOARDBUFFER) {
1248: paste_add(NULL, out, outlen);
1249: c->flags &= ~CLIENT_CLIPBOARDBUFFER;
1250: }
1251: for (i = 0; i < c->clipboard_npanes; i++) {
1252: wp = window_pane_find_by_id(c->clipboard_panes[i]);
1253: if (wp != NULL)
1254: input_reply_clipboard(wp->event, out, outlen, "\033\\");
1255: }
1256: free(c->clipboard_panes);
1257: c->clipboard_panes = NULL;
1258: c->clipboard_npanes = 0;
1.91 nicm 1259:
1260: return (0);
1261: }
1262:
1263: /*
1.161 nicm 1264: * Handle primary device attributes input. Returns 0 for success, -1 for
1.124 nicm 1265: * failure, 1 for partial.
1.91 nicm 1266: */
1267: static int
1268: tty_keys_device_attributes(struct tty *tty, const char *buf, size_t len,
1269: size_t *size)
1270: {
1.118 nicm 1271: struct client *c = tty->client;
1.162 nicm 1272: int *features = &c->term_features;
1.118 nicm 1273: u_int i, n = 0;
1.161 nicm 1274: char tmp[128], *endptr, p[32] = { 0 }, *cp, *next;
1.91 nicm 1275:
1276: *size = 0;
1.120 nicm 1277: if (tty->flags & TTY_HAVEDA)
1278: return (-1);
1.91 nicm 1279:
1.161 nicm 1280: /* First three bytes are always \033[?. */
1.91 nicm 1281: if (buf[0] != '\033')
1282: return (-1);
1283: if (len == 1)
1284: return (1);
1285: if (buf[1] != '[')
1286: return (-1);
1287: if (len == 2)
1288: return (1);
1.161 nicm 1289: if (buf[2] != '?')
1.91 nicm 1290: return (-1);
1291: if (len == 3)
1292: return (1);
1293:
1.163 nicm 1294: /* Copy the rest up to a c. */
1.161 nicm 1295: for (i = 0; i < (sizeof tmp); i++) {
1.91 nicm 1296: if (3 + i == len)
1297: return (1);
1.128 nicm 1298: if (buf[3 + i] == 'c')
1299: break;
1.91 nicm 1300: tmp[i] = buf[3 + i];
1301: }
1.161 nicm 1302: if (i == (sizeof tmp))
1.91 nicm 1303: return (-1);
1304: tmp[i] = '\0';
1305: *size = 4 + i;
1.141 nicm 1306:
1.161 nicm 1307: /* Convert all arguments to numbers. */
1308: cp = tmp;
1309: while ((next = strsep(&cp, ";")) != NULL) {
1310: p[n] = strtoul(next, &endptr, 10);
1311: if (*endptr != '\0')
1312: p[n] = 0;
1313: if (++n == nitems(p))
1314: break;
1315: }
1316:
1.169 ! nicm 1317: /*
! 1318: * Add terminal features. Technically, VT420 and VT525 do not support
! 1319: * SIXEL, but some modern terminals report it anyway so we accept it
! 1320: * here too.
! 1321: */
1.161 nicm 1322: switch (p[0]) {
1323: case 62: /* VT220 */
1324: case 63: /* VT320 */
1325: case 64: /* VT420 */
1.169 ! nicm 1326: case 65: /* VT525 */
1.162 nicm 1327: for (i = 1; i < n; i++) {
1328: log_debug("%s: DA feature: %d", c->name, p[i]);
1329: if (p[i] == 4)
1330: tty_add_features(features, "sixel", ",");
1331: }
1.161 nicm 1332: break;
1333: }
1334: log_debug("%s: received primary DA %.*s", c->name, (int)*size, buf);
1335:
1336: tty_update_features(tty);
1337: tty->flags |= TTY_HAVEDA;
1338:
1339: return (0);
1340: }
1341:
1342: /*
1343: * Handle secondary device attributes input. Returns 0 for success, -1 for
1344: * failure, 1 for partial.
1345: */
1346: static int
1347: tty_keys_device_attributes2(struct tty *tty, const char *buf, size_t len,
1348: size_t *size)
1349: {
1350: struct client *c = tty->client;
1.162 nicm 1351: int *features = &c->term_features;
1.161 nicm 1352: u_int i, n = 0;
1353: char tmp[128], *endptr, p[32] = { 0 }, *cp, *next;
1354:
1355: *size = 0;
1356: if (tty->flags & TTY_HAVEDA2)
1357: return (-1);
1358:
1359: /* First three bytes are always \033[>. */
1360: if (buf[0] != '\033')
1361: return (-1);
1362: if (len == 1)
1363: return (1);
1364: if (buf[1] != '[')
1365: return (-1);
1366: if (len == 2)
1367: return (1);
1368: if (buf[2] != '>')
1369: return (-1);
1370: if (len == 3)
1371: return (1);
1372:
1.163 nicm 1373: /* Copy the rest up to a c. */
1.161 nicm 1374: for (i = 0; i < (sizeof tmp); i++) {
1375: if (3 + i == len)
1376: return (1);
1377: if (buf[3 + i] == 'c')
1378: break;
1379: tmp[i] = buf[3 + i];
1380: }
1381: if (i == (sizeof tmp))
1382: return (-1);
1383: tmp[i] = '\0';
1384: *size = 4 + i;
1.91 nicm 1385:
1.124 nicm 1386: /* Convert all arguments to numbers. */
1.116 nicm 1387: cp = tmp;
1388: while ((next = strsep(&cp, ";")) != NULL) {
1389: p[n] = strtoul(next, &endptr, 10);
1.117 nicm 1390: if (*endptr != '\0')
1.116 nicm 1391: p[n] = 0;
1.161 nicm 1392: if (++n == nitems(p))
1393: break;
1.116 nicm 1394: }
1.91 nicm 1395:
1.126 nicm 1396: /* Add terminal features. */
1.116 nicm 1397: switch (p[0]) {
1.124 nicm 1398: case 41: /* VT420 */
1.162 nicm 1399: tty_add_features(features, "margins,rectfill", ",");
1.91 nicm 1400: break;
1.124 nicm 1401: case 'M': /* mintty */
1.162 nicm 1402: tty_default_features(features, "mintty", 0);
1.124 nicm 1403: break;
1.126 nicm 1404: case 'T': /* tmux */
1.162 nicm 1405: tty_default_features(features, "tmux", 0);
1.124 nicm 1406: break;
1407: case 'U': /* rxvt-unicode */
1.162 nicm 1408: tty_default_features(features, "rxvt-unicode", 0);
1.124 nicm 1409: break;
1.91 nicm 1410: }
1.124 nicm 1411: log_debug("%s: received secondary DA %.*s", c->name, (int)*size, buf);
1.120 nicm 1412:
1.126 nicm 1413: tty_update_features(tty);
1.161 nicm 1414: tty->flags |= TTY_HAVEDA2;
1.120 nicm 1415:
1.119 nicm 1416: return (0);
1417: }
1418:
1419: /*
1.128 nicm 1420: * Handle extended device attributes input. Returns 0 for success, -1 for
1421: * failure, 1 for partial.
1.119 nicm 1422: */
1423: static int
1.128 nicm 1424: tty_keys_extended_device_attributes(struct tty *tty, const char *buf,
1425: size_t len, size_t *size)
1.119 nicm 1426: {
1427: struct client *c = tty->client;
1.162 nicm 1428: int *features = &c->term_features;
1.119 nicm 1429: u_int i;
1.130 nicm 1430: char tmp[128];
1.119 nicm 1431:
1432: *size = 0;
1.128 nicm 1433: if (tty->flags & TTY_HAVEXDA)
1.120 nicm 1434: return (-1);
1.119 nicm 1435:
1.128 nicm 1436: /* First four bytes are always \033P>|. */
1.119 nicm 1437: if (buf[0] != '\033')
1438: return (-1);
1439: if (len == 1)
1440: return (1);
1.128 nicm 1441: if (buf[1] != 'P')
1.119 nicm 1442: return (-1);
1443: if (len == 2)
1444: return (1);
1.128 nicm 1445: if (buf[2] != '>')
1.120 nicm 1446: return (-1);
1447: if (len == 3)
1448: return (1);
1.128 nicm 1449: if (buf[3] != '|')
1450: return (-1);
1451: if (len == 4)
1452: return (1);
1.119 nicm 1453:
1.163 nicm 1454: /* Copy the rest up to \033\. */
1.128 nicm 1455: for (i = 0; i < (sizeof tmp) - 1; i++) {
1456: if (4 + i == len)
1.119 nicm 1457: return (1);
1.128 nicm 1458: if (buf[4 + i - 1] == '\033' && buf[4 + i] == '\\')
1459: break;
1460: tmp[i] = buf[4 + i];
1.119 nicm 1461: }
1462: if (i == (sizeof tmp) - 1)
1463: return (-1);
1.128 nicm 1464: tmp[i - 1] = '\0';
1465: *size = 5 + i;
1.119 nicm 1466:
1.126 nicm 1467: /* Add terminal features. */
1.130 nicm 1468: if (strncmp(tmp, "iTerm2 ", 7) == 0)
1.162 nicm 1469: tty_default_features(features, "iTerm2", 0);
1.130 nicm 1470: else if (strncmp(tmp, "tmux ", 5) == 0)
1.162 nicm 1471: tty_default_features(features, "tmux", 0);
1.130 nicm 1472: else if (strncmp(tmp, "XTerm(", 6) == 0)
1.162 nicm 1473: tty_default_features(features, "XTerm", 0);
1.130 nicm 1474: else if (strncmp(tmp, "mintty ", 7) == 0)
1.162 nicm 1475: tty_default_features(features, "mintty", 0);
1.128 nicm 1476: log_debug("%s: received extended DA %.*s", c->name, (int)*size, buf);
1.130 nicm 1477:
1478: free(c->term_type);
1479: c->term_type = xstrdup(tmp);
1.120 nicm 1480:
1.126 nicm 1481: tty_update_features(tty);
1.128 nicm 1482: tty->flags |= TTY_HAVEXDA;
1.163 nicm 1483:
1484: return (0);
1485: }
1486:
1487: /*
1488: * Handle foreground or background input. Returns 0 for success, -1 for
1489: * failure, 1 for partial.
1490: */
1491: static int
1492: tty_keys_colours(struct tty *tty, const char *buf, size_t len, size_t *size)
1493: {
1494: struct client *c = tty->client;
1495: u_int i;
1496: char tmp[128];
1497: int n;
1498:
1499: *size = 0;
1500:
1501: /* First four bytes are always \033]1 and 0 or 1 and ;. */
1502: if (buf[0] != '\033')
1503: return (-1);
1504: if (len == 1)
1505: return (1);
1506: if (buf[1] != ']')
1507: return (-1);
1508: if (len == 2)
1509: return (1);
1510: if (buf[2] != '1')
1511: return (-1);
1512: if (len == 3)
1513: return (1);
1514: if (buf[3] != '0' && buf[3] != '1')
1515: return (-1);
1516: if (len == 4)
1517: return (1);
1518: if (buf[4] != ';')
1519: return (-1);
1520: if (len == 5)
1521: return (1);
1522:
1.164 nicm 1523: /* Copy the rest up to \033\ or \007. */
1.163 nicm 1524: for (i = 0; i < (sizeof tmp) - 1; i++) {
1525: if (5 + i == len)
1526: return (1);
1527: if (buf[5 + i - 1] == '\033' && buf[5 + i] == '\\')
1528: break;
1.164 nicm 1529: if (buf[5 + i] == '\007')
1530: break;
1.163 nicm 1531: tmp[i] = buf[5 + i];
1532: }
1533: if (i == (sizeof tmp) - 1)
1534: return (-1);
1.165 nicm 1535: if (tmp[i - 1] == '\033')
1536: tmp[i - 1] = '\0';
1537: else
1.164 nicm 1538: tmp[i] = '\0';
1.165 nicm 1539: *size = 6 + i;
1.163 nicm 1540:
1541: n = colour_parseX11(tmp);
1542: if (n != -1 && buf[3] == '0') {
1543: log_debug("%s: foreground is %s", c->name, colour_tostring(n));
1544: tty->fg = n;
1545: } else if (n != -1) {
1546: log_debug("%s: background is %s", c->name, colour_tostring(n));
1547: tty->bg = n;
1548: }
1.120 nicm 1549:
1.22 nicm 1550: return (0);
1.1 nicm 1551: }
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