Annotation of src/usr.bin/tmux/tty-term.c, Revision 1.22
1.22 ! nicm 1: /* $OpenBSD: tty-term.c,v 1.21 2011/04/09 07:48:08 nicm Exp $ */
1.1 nicm 2:
3: /*
4: * Copyright (c) 2008 Nicholas Marriott <nicm@users.sourceforge.net>
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:
1.3 nicm 21: #include <curses.h>
1.5 nicm 22: #include <fnmatch.h>
23: #include <stdlib.h>
1.1 nicm 24: #include <string.h>
25: #include <term.h>
1.5 nicm 26: #include <vis.h>
1.1 nicm 27:
28: #include "tmux.h"
29:
1.5 nicm 30: void tty_term_override(struct tty_term *, const char *);
1.1 nicm 31: char *tty_term_strip(const char *);
32:
1.20 nicm 33: struct tty_terms tty_terms = LIST_HEAD_INITIALIZER(tty_terms);
1.1 nicm 34:
1.19 nicm 35: const struct tty_term_code_entry tty_term_codes[NTTYCODE] = {
1.13 nicm 36: { TTYC_ACSC, TTYCODE_STRING, "acsc" },
1.1 nicm 37: { TTYC_AX, TTYCODE_FLAG, "AX" },
38: { TTYC_BEL, TTYCODE_STRING, "bel" },
39: { TTYC_BLINK, TTYCODE_STRING, "blink" },
40: { TTYC_BOLD, TTYCODE_STRING, "bold" },
41: { TTYC_CIVIS, TTYCODE_STRING, "civis" },
42: { TTYC_CLEAR, TTYCODE_STRING, "clear" },
43: { TTYC_CNORM, TTYCODE_STRING, "cnorm" },
44: { TTYC_COLORS, TTYCODE_NUMBER, "colors" },
45: { TTYC_CSR, TTYCODE_STRING, "csr" },
1.10 nicm 46: { TTYC_CUB, TTYCODE_STRING, "cub" },
47: { TTYC_CUB1, TTYCODE_STRING, "cub1" },
1.1 nicm 48: { TTYC_CUD, TTYCODE_STRING, "cud" },
49: { TTYC_CUD1, TTYCODE_STRING, "cud1" },
1.10 nicm 50: { TTYC_CUF, TTYCODE_STRING, "cuf" },
51: { TTYC_CUF1, TTYCODE_STRING, "cuf1" },
1.1 nicm 52: { TTYC_CUP, TTYCODE_STRING, "cup" },
1.10 nicm 53: { TTYC_CUU, TTYCODE_STRING, "cuu" },
54: { TTYC_CUU1, TTYCODE_STRING, "cuu1" },
1.1 nicm 55: { TTYC_DCH, TTYCODE_STRING, "dch" },
56: { TTYC_DCH1, TTYCODE_STRING, "dch1" },
57: { TTYC_DIM, TTYCODE_STRING, "dim" },
58: { TTYC_DL, TTYCODE_STRING, "dl" },
59: { TTYC_DL1, TTYCODE_STRING, "dl1" },
60: { TTYC_EL, TTYCODE_STRING, "el" },
61: { TTYC_EL1, TTYCODE_STRING, "el1" },
62: { TTYC_ENACS, TTYCODE_STRING, "enacs" },
1.22 ! nicm 63: { TTYC_FSL, TTYCODE_STRING, "fsl" },
1.10 nicm 64: { TTYC_HOME, TTYCODE_STRING, "home" },
65: { TTYC_HPA, TTYCODE_STRING, "hpa" },
1.1 nicm 66: { TTYC_ICH, TTYCODE_STRING, "ich" },
67: { TTYC_ICH1, TTYCODE_STRING, "ich1" },
68: { TTYC_IL, TTYCODE_STRING, "il" },
69: { TTYC_IL1, TTYCODE_STRING, "il1" },
70: { TTYC_INVIS, TTYCODE_STRING, "invis" },
71: { TTYC_IS1, TTYCODE_STRING, "is1" },
72: { TTYC_IS2, TTYCODE_STRING, "is2" },
73: { TTYC_IS3, TTYCODE_STRING, "is3" },
74: { TTYC_KCBT, TTYCODE_STRING, "kcbt" },
75: { TTYC_KCUB1, TTYCODE_STRING, "kcub1" },
76: { TTYC_KCUD1, TTYCODE_STRING, "kcud1" },
77: { TTYC_KCUF1, TTYCODE_STRING, "kcuf1" },
78: { TTYC_KCUU1, TTYCODE_STRING, "kcuu1" },
1.13 nicm 79: { TTYC_KDC2, TTYCODE_STRING, "kDC" },
80: { TTYC_KDC3, TTYCODE_STRING, "kDC3" },
81: { TTYC_KDC4, TTYCODE_STRING, "kDC4" },
82: { TTYC_KDC5, TTYCODE_STRING, "kDC5" },
83: { TTYC_KDC6, TTYCODE_STRING, "kDC6" },
84: { TTYC_KDC7, TTYCODE_STRING, "kDC7" },
1.1 nicm 85: { TTYC_KDCH1, TTYCODE_STRING, "kdch1" },
1.13 nicm 86: { TTYC_KDN2, TTYCODE_STRING, "kDN" },
87: { TTYC_KDN3, TTYCODE_STRING, "kDN3" },
88: { TTYC_KDN4, TTYCODE_STRING, "kDN4" },
89: { TTYC_KDN5, TTYCODE_STRING, "kDN5" },
90: { TTYC_KDN6, TTYCODE_STRING, "kDN6" },
91: { TTYC_KDN7, TTYCODE_STRING, "kDN7" },
1.1 nicm 92: { TTYC_KEND, TTYCODE_STRING, "kend" },
1.13 nicm 93: { TTYC_KEND2, TTYCODE_STRING, "kEND" },
94: { TTYC_KEND3, TTYCODE_STRING, "kEND3" },
95: { TTYC_KEND4, TTYCODE_STRING, "kEND4" },
96: { TTYC_KEND5, TTYCODE_STRING, "kEND5" },
97: { TTYC_KEND6, TTYCODE_STRING, "kEND6" },
98: { TTYC_KEND7, TTYCODE_STRING, "kEND7" },
1.1 nicm 99: { TTYC_KF1, TTYCODE_STRING, "kf1" },
100: { TTYC_KF10, TTYCODE_STRING, "kf10" },
101: { TTYC_KF11, TTYCODE_STRING, "kf11" },
102: { TTYC_KF12, TTYCODE_STRING, "kf12" },
103: { TTYC_KF13, TTYCODE_STRING, "kf13" },
104: { TTYC_KF14, TTYCODE_STRING, "kf14" },
105: { TTYC_KF15, TTYCODE_STRING, "kf15" },
106: { TTYC_KF16, TTYCODE_STRING, "kf16" },
107: { TTYC_KF17, TTYCODE_STRING, "kf17" },
108: { TTYC_KF18, TTYCODE_STRING, "kf18" },
109: { TTYC_KF19, TTYCODE_STRING, "kf19" },
1.10 nicm 110: { TTYC_KF2, TTYCODE_STRING, "kf2" },
1.1 nicm 111: { TTYC_KF20, TTYCODE_STRING, "kf20" },
112: { TTYC_KF3, TTYCODE_STRING, "kf3" },
113: { TTYC_KF4, TTYCODE_STRING, "kf4" },
114: { TTYC_KF5, TTYCODE_STRING, "kf5" },
115: { TTYC_KF6, TTYCODE_STRING, "kf6" },
116: { TTYC_KF7, TTYCODE_STRING, "kf7" },
117: { TTYC_KF8, TTYCODE_STRING, "kf8" },
118: { TTYC_KF9, TTYCODE_STRING, "kf9" },
1.13 nicm 119: { TTYC_KHOM2, TTYCODE_STRING, "kHOM" },
120: { TTYC_KHOM3, TTYCODE_STRING, "kHOM3" },
121: { TTYC_KHOM4, TTYCODE_STRING, "kHOM4" },
122: { TTYC_KHOM5, TTYCODE_STRING, "kHOM5" },
123: { TTYC_KHOM6, TTYCODE_STRING, "kHOM6" },
124: { TTYC_KHOM7, TTYCODE_STRING, "kHOM7" },
1.1 nicm 125: { TTYC_KHOME, TTYCODE_STRING, "khome" },
1.13 nicm 126: { TTYC_KIC2, TTYCODE_STRING, "kIC" },
127: { TTYC_KIC3, TTYCODE_STRING, "kIC3" },
128: { TTYC_KIC4, TTYCODE_STRING, "kIC4" },
129: { TTYC_KIC5, TTYCODE_STRING, "kIC5" },
130: { TTYC_KIC6, TTYCODE_STRING, "kIC6" },
131: { TTYC_KIC7, TTYCODE_STRING, "kIC7" },
1.1 nicm 132: { TTYC_KICH1, TTYCODE_STRING, "kich1" },
1.13 nicm 133: { TTYC_KLFT2, TTYCODE_STRING, "kLFT" },
134: { TTYC_KLFT3, TTYCODE_STRING, "kLFT3" },
135: { TTYC_KLFT4, TTYCODE_STRING, "kLFT4" },
136: { TTYC_KLFT5, TTYCODE_STRING, "kLFT5" },
137: { TTYC_KLFT6, TTYCODE_STRING, "kLFT6" },
138: { TTYC_KLFT7, TTYCODE_STRING, "kLFT7" },
1.1 nicm 139: { TTYC_KMOUS, TTYCODE_STRING, "kmous" },
140: { TTYC_KNP, TTYCODE_STRING, "knp" },
1.13 nicm 141: { TTYC_KNXT2, TTYCODE_STRING, "kNXT" },
142: { TTYC_KNXT3, TTYCODE_STRING, "kNXT3" },
143: { TTYC_KNXT4, TTYCODE_STRING, "kNXT4" },
144: { TTYC_KNXT5, TTYCODE_STRING, "kNXT5" },
145: { TTYC_KNXT6, TTYCODE_STRING, "kNXT6" },
146: { TTYC_KNXT7, TTYCODE_STRING, "kNXT7" },
1.1 nicm 147: { TTYC_KPP, TTYCODE_STRING, "kpp" },
1.13 nicm 148: { TTYC_KPRV2, TTYCODE_STRING, "kPRV" },
149: { TTYC_KPRV3, TTYCODE_STRING, "kPRV3" },
150: { TTYC_KPRV4, TTYCODE_STRING, "kPRV4" },
151: { TTYC_KPRV5, TTYCODE_STRING, "kPRV5" },
152: { TTYC_KPRV6, TTYCODE_STRING, "kPRV6" },
153: { TTYC_KPRV7, TTYCODE_STRING, "kPRV7" },
154: { TTYC_KRIT2, TTYCODE_STRING, "kRIT" },
155: { TTYC_KRIT3, TTYCODE_STRING, "kRIT3" },
156: { TTYC_KRIT4, TTYCODE_STRING, "kRIT4" },
157: { TTYC_KRIT5, TTYCODE_STRING, "kRIT5" },
158: { TTYC_KRIT6, TTYCODE_STRING, "kRIT6" },
159: { TTYC_KRIT7, TTYCODE_STRING, "kRIT7" },
160: { TTYC_KUP2, TTYCODE_STRING, "kUP" },
161: { TTYC_KUP3, TTYCODE_STRING, "kUP3" },
162: { TTYC_KUP4, TTYCODE_STRING, "kUP4" },
163: { TTYC_KUP5, TTYCODE_STRING, "kUP5" },
164: { TTYC_KUP6, TTYCODE_STRING, "kUP6" },
165: { TTYC_KUP7, TTYCODE_STRING, "kUP7" },
1.1 nicm 166: { TTYC_OP, TTYCODE_STRING, "op" },
167: { TTYC_REV, TTYCODE_STRING, "rev" },
168: { TTYC_RI, TTYCODE_STRING, "ri" },
169: { TTYC_RMACS, TTYCODE_STRING, "rmacs" },
170: { TTYC_RMCUP, TTYCODE_STRING, "rmcup" },
171: { TTYC_RMIR, TTYCODE_STRING, "rmir" },
172: { TTYC_RMKX, TTYCODE_STRING, "rmkx" },
173: { TTYC_SETAB, TTYCODE_STRING, "setab" },
174: { TTYC_SETAF, TTYCODE_STRING, "setaf" },
175: { TTYC_SGR0, TTYCODE_STRING, "sgr0" },
1.22 ! nicm 176: { TTYC_SITM, TTYCODE_STRING, "sitm" },
1.1 nicm 177: { TTYC_SMACS, TTYCODE_STRING, "smacs" },
178: { TTYC_SMCUP, TTYCODE_STRING, "smcup" },
179: { TTYC_SMIR, TTYCODE_STRING, "smir" },
180: { TTYC_SMKX, TTYCODE_STRING, "smkx" },
181: { TTYC_SMSO, TTYCODE_STRING, "smso" },
182: { TTYC_SMUL, TTYCODE_STRING, "smul" },
1.22 ! nicm 183: { TTYC_TSL, TTYCODE_STRING, "tsl" },
1.10 nicm 184: { TTYC_VPA, TTYCODE_STRING, "vpa" },
1.1 nicm 185: { TTYC_XENL, TTYCODE_FLAG, "xenl" },
1.22 ! nicm 186: { TTYC_XT, TTYCODE_FLAG, "XT" },
1.1 nicm 187: };
188:
189: char *
190: tty_term_strip(const char *s)
191: {
192: const char *ptr;
193: static char buf[BUFSIZ];
194: size_t len;
195:
196: /* Ignore strings with no padding. */
197: if (strchr(s, '$') == NULL)
198: return (xstrdup(s));
199:
200: len = 0;
201: for (ptr = s; *ptr != '\0'; ptr++) {
202: if (*ptr == '$' && *(ptr + 1) == '<') {
203: while (*ptr != '\0' && *ptr != '>')
204: ptr++;
205: if (*ptr == '>')
206: ptr++;
207: }
208:
209: buf[len++] = *ptr;
210: if (len == (sizeof buf) - 1)
211: break;
212: }
213: buf[len] = '\0';
214:
215: return (xstrdup(buf));
216: }
217:
218: void
1.5 nicm 219: tty_term_override(struct tty_term *term, const char *overrides)
1.1 nicm 220: {
1.19 nicm 221: const struct tty_term_code_entry *ent;
222: struct tty_code *code;
223: char *termnext, *termstr;
224: char *entnext, *entstr;
225: char *s, *ptr, *val;
226: const char *errstr;
227: u_int i;
228: int n, removeflag;
1.5 nicm 229:
230: s = xstrdup(overrides);
231:
232: termnext = s;
233: while ((termstr = strsep(&termnext, ",")) != NULL) {
234: entnext = termstr;
1.16 nicm 235:
1.5 nicm 236: entstr = strsep(&entnext, ":");
237: if (entstr == NULL || entnext == NULL)
238: continue;
239: if (fnmatch(entstr, term->name, 0) != 0)
240: continue;
241: while ((entstr = strsep(&entnext, ":")) != NULL) {
242: if (*entstr == '\0')
243: continue;
244:
245: val = NULL;
246: removeflag = 0;
1.16 nicm 247: if ((ptr = strchr(entstr, '=')) != NULL) {
1.5 nicm 248: *ptr++ = '\0';
249: val = xstrdup(ptr);
1.9 nicm 250: if (strunvis(val, ptr) == -1) {
1.5 nicm 251: xfree(val);
252: val = xstrdup(ptr);
253: }
254: } else if (entstr[strlen(entstr) - 1] == '@') {
255: entstr[strlen(entstr) - 1] = '\0';
256: removeflag = 1;
1.17 nicm 257: } else
1.22 ! nicm 258: val = xstrdup("");
1.5 nicm 259:
260: for (i = 0; i < NTTYCODE; i++) {
261: ent = &tty_term_codes[i];
262: if (strcmp(entstr, ent->name) != 0)
263: continue;
264: code = &term->codes[ent->code];
265:
266: if (removeflag) {
267: code->type = TTYCODE_NONE;
268: continue;
269: }
270: switch (ent->type) {
271: case TTYCODE_NONE:
272: break;
273: case TTYCODE_STRING:
1.6 nicm 274: if (code->type == TTYCODE_STRING)
275: xfree(code->value.string);
1.5 nicm 276: code->value.string = xstrdup(val);
277: code->type = ent->type;
278: break;
279: case TTYCODE_NUMBER:
280: n = strtonum(val, 0, INT_MAX, &errstr);
281: if (errstr != NULL)
282: break;
283: code->value.number = n;
284: code->type = ent->type;
285: break;
286: case TTYCODE_FLAG:
287: code->value.flag = 1;
288: code->type = ent->type;
289: break;
290: }
291: }
292:
293: if (val != NULL)
294: xfree(val);
1.1 nicm 295: }
296: }
297:
1.5 nicm 298: xfree(s);
1.1 nicm 299: }
300:
301: struct tty_term *
1.5 nicm 302: tty_term_find(char *name, int fd, const char *overrides, char **cause)
1.1 nicm 303: {
1.19 nicm 304: struct tty_term *term;
305: const struct tty_term_code_entry *ent;
306: struct tty_code *code;
307: u_int i;
308: int n, error;
309: char *s;
310: const char *acs;
1.1 nicm 311:
1.20 nicm 312: LIST_FOREACH(term, &tty_terms, entry) {
1.1 nicm 313: if (strcmp(term->name, name) == 0) {
314: term->references++;
315: return (term);
316: }
317: }
318:
319: log_debug("new term: %s", name);
320: term = xmalloc(sizeof *term);
321: term->name = xstrdup(name);
322: term->references = 1;
323: term->flags = 0;
1.18 nicm 324: memset(term->codes, 0, sizeof term->codes);
1.20 nicm 325: LIST_INSERT_HEAD(&tty_terms, term, entry);
1.1 nicm 326:
1.3 nicm 327: /* Set up curses terminal. */
1.1 nicm 328: if (setupterm(name, fd, &error) != OK) {
329: switch (error) {
1.4 matthieu 330: case 1:
1.16 nicm 331: xasprintf(
332: cause, "can't use hardcopy terminal: %s", name);
1.4 matthieu 333: break;
1.1 nicm 334: case 0:
1.16 nicm 335: xasprintf(
336: cause, "missing or unsuitable terminal: %s", name);
1.1 nicm 337: break;
1.4 matthieu 338: case -1:
1.1 nicm 339: xasprintf(cause, "can't find terminfo database");
340: break;
341: default:
342: xasprintf(cause, "unknown error");
343: break;
344: }
345: goto error;
346: }
347:
348: /* Fill in codes. */
349: for (i = 0; i < NTTYCODE; i++) {
350: ent = &tty_term_codes[i];
351:
352: code = &term->codes[ent->code];
353: code->type = TTYCODE_NONE;
354: switch (ent->type) {
355: case TTYCODE_NONE:
356: break;
357: case TTYCODE_STRING:
358: s = tigetstr((char *) ent->name);
359: if (s == NULL || s == (char *) -1)
360: break;
361: code->type = TTYCODE_STRING;
362: code->value.string = tty_term_strip(s);
363: break;
364: case TTYCODE_NUMBER:
365: n = tigetnum((char *) ent->name);
366: if (n == -1 || n == -2)
367: break;
368: code->type = TTYCODE_NUMBER;
369: code->value.number = n;
370: break;
371: case TTYCODE_FLAG:
372: n = tigetflag((char *) ent->name);
373: if (n == -1)
374: break;
375: code->type = TTYCODE_FLAG;
376: code->value.number = n;
377: break;
378: }
379: }
1.5 nicm 380: tty_term_override(term, overrides);
1.1 nicm 381:
1.3 nicm 382: /* Delete curses data. */
1.1 nicm 383: del_curterm(cur_term);
384:
385: /* These are always required. */
386: if (!tty_term_has(term, TTYC_CLEAR)) {
387: xasprintf(cause, "terminal does not support clear");
388: goto error;
389: }
390: if (!tty_term_has(term, TTYC_CUP)) {
391: xasprintf(cause, "terminal does not support cup");
392: goto error;
393: }
394:
395: /* These can be emulated so one of the two is required. */
396: if (!tty_term_has(term, TTYC_CUD1) && !tty_term_has(term, TTYC_CUD)) {
397: xasprintf(cause, "terminal does not support cud1 or cud");
398: goto error;
399: }
400:
1.11 nicm 401: /* Figure out if we have 256 or 88 colours. */
1.1 nicm 402: if (tty_term_number(term, TTYC_COLORS) == 256)
403: term->flags |= TERM_256COLOURS;
404: if (tty_term_number(term, TTYC_COLORS) == 88)
405: term->flags |= TERM_88COLOURS;
406:
407: /*
408: * Terminals without xenl (eat newline glitch) wrap at at $COLUMNS - 1
409: * rather than $COLUMNS (the cursor can never be beyond $COLUMNS - 1).
410: *
411: * This is irritating, most notably because it is impossible to write
412: * to the very bottom-right of the screen without scrolling.
413: *
414: * Flag the terminal here and apply some workarounds in other places to
415: * do the best possible.
416: */
417: if (!tty_term_flag(term, TTYC_XENL))
418: term->flags |= TERM_EARLYWRAP;
1.18 nicm 419:
420: /* Generate ACS table. If none is present, use nearest ASCII. */
421: memset(term->acs, 0, sizeof term->acs);
422: if (tty_term_has(term, TTYC_ACSC))
423: acs = tty_term_string(term, TTYC_ACSC);
424: else
425: acs = "a#j+k+l+m+n+o-p-q-r-s-t+u+v+w+x|y<z>~.";
426: for (; acs[0] != '\0' && acs[1] != '\0'; acs += 2)
427: term->acs[(u_char) acs[0]][0] = acs[1];
1.22 ! nicm 428:
! 429: /* On terminals with xterm titles (XT), fill in tsl and fsl. */
! 430: if (tty_term_flag(term, TTYC_XT) &&
! 431: !tty_term_has(term, TTYC_TSL) &&
! 432: !tty_term_has(term, TTYC_FSL)) {
! 433: code = &term->codes[TTYC_TSL];
! 434: code->value.string = xstrdup("\033]0;");
! 435: code->type = TTYCODE_STRING;
! 436: code = &term->codes[TTYC_FSL];
! 437: code->value.string = xstrdup("\007");
! 438: code->type = TTYCODE_STRING;
! 439: }
1.1 nicm 440:
441: return (term);
442:
443: error:
444: tty_term_free(term);
445: return (NULL);
446: }
447:
448: void
449: tty_term_free(struct tty_term *term)
450: {
451: u_int i;
452:
453: if (--term->references != 0)
454: return;
455:
1.20 nicm 456: LIST_REMOVE(term, entry);
1.1 nicm 457:
458: for (i = 0; i < NTTYCODE; i++) {
459: if (term->codes[i].type == TTYCODE_STRING)
460: xfree(term->codes[i].value.string);
461: }
462: xfree(term->name);
463: xfree(term);
464: }
465:
466: int
467: tty_term_has(struct tty_term *term, enum tty_code_code code)
468: {
469: return (term->codes[code].type != TTYCODE_NONE);
470: }
471:
472: const char *
473: tty_term_string(struct tty_term *term, enum tty_code_code code)
474: {
475: if (!tty_term_has(term, code))
476: return ("");
477: if (term->codes[code].type != TTYCODE_STRING)
478: log_fatalx("not a string: %d", code);
479: return (term->codes[code].value.string);
480: }
481:
1.3 nicm 482: /* No vtparm. Fucking curses. */
1.1 nicm 483: const char *
484: tty_term_string1(struct tty_term *term, enum tty_code_code code, int a)
485: {
486: return (tparm((char *) tty_term_string(term, code), a));
487: }
488:
489: const char *
490: tty_term_string2(struct tty_term *term, enum tty_code_code code, int a, int b)
491: {
492: return (tparm((char *) tty_term_string(term, code), a, b));
493: }
494:
495: int
496: tty_term_number(struct tty_term *term, enum tty_code_code code)
497: {
498: if (!tty_term_has(term, code))
499: return (0);
500: if (term->codes[code].type != TTYCODE_NUMBER)
501: log_fatalx("not a number: %d", code);
502: return (term->codes[code].value.number);
503: }
504:
505: int
506: tty_term_flag(struct tty_term *term, enum tty_code_code code)
507: {
508: if (!tty_term_has(term, code))
509: return (0);
510: if (term->codes[code].type != TTYCODE_FLAG)
511: log_fatalx("not a flag: %d", code);
512: return (term->codes[code].value.flag);
513: }