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Merge branch 'vendor/TCSH'
[dragonfly.git] / contrib / tcsh-6 / ed.screen.c
blobcf36717a34f7e6ba4dfae10b7353d15d980d54a5
1 /* $Header: /p/tcsh/cvsroot/tcsh/ed.screen.c,v 3.76 2009/06/25 21:15:37 christos Exp $ */
2 /*
3 * ed.screen.c: Editor/termcap-curses interface
4 */
5 /*-
6 * Copyright (c) 1980, 1991 The Regents of the University of California.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33 #include "sh.h"
34
35 RCSID("$tcsh: ed.screen.c,v 3.76 2009/06/25 21:15:37 christos Exp $")
36
37 #include "ed.h"
38 #include "tc.h"
39 #include "ed.defns.h"
40
41 /* #define DEBUG_LITERAL */
42
43 /*
44 * IMPORTANT NOTE: these routines are allowed to look at the current screen
45 * and the current possition assuming that it is correct. If this is not
46 * true, then the update will be WRONG! This is (should be) a valid
47 * assumption...
48 */
49
50 #define TC_BUFSIZE 2048
51
52 #define GoodStr(a) (tstr[a].str != NULL && tstr[a].str[0] != '\0')
53 #define Str(a) tstr[a].str
54 #define Val(a) tval[a].val
55
56 static const struct {
57 const char *b_name;
58 speed_t b_rate;
59 } baud_rate[] = {
60
61 #ifdef B0
62 { "0", B0 },
63 #endif
64 #ifdef B50
65 { "50", B50 },
66 #endif
67 #ifdef B75
68 { "75", B75 },
69 #endif
70 #ifdef B110
71 { "110", B110 },
72 #endif
73 #ifdef B134
74 { "134", B134 },
75 #endif
76 #ifdef B150
77 { "150", B150 },
78 #endif
79 #ifdef B200
80 { "200", B200 },
81 #endif
82 #ifdef B300
83 { "300", B300 },
84 #endif
85 #ifdef B600
86 { "600", B600 },
87 #endif
88 #ifdef B900
89 { "900", B900 },
90 #endif
91 #ifdef B1200
92 { "1200", B1200 },
93 #endif
94 #ifdef B1800
95 { "1800", B1800 },
96 #endif
97 #ifdef B2400
98 { "2400", B2400 },
99 #endif
100 #ifdef B3600
101 { "3600", B3600 },
102 #endif
103 #ifdef B4800
104 { "4800", B4800 },
105 #endif
106 #ifdef B7200
107 { "7200", B7200 },
108 #endif
109 #ifdef B9600
110 { "9600", B9600 },
111 #endif
112 #ifdef EXTA
113 { "19200", EXTA },
114 #endif
115 #ifdef B19200
116 { "19200", B19200 },
117 #endif
118 #ifdef EXTB
119 { "38400", EXTB },
120 #endif
121 #ifdef B38400
122 { "38400", B38400 },
123 #endif
124 { NULL, 0 }
125 };
126
127 #define T_at7 0
128 #define T_al 1
129 #define T_bl 2
130 #define T_cd 3
131 #define T_ce 4
132 #define T_ch 5
133 #define T_cl 6
134 #define T_dc 7
135 #define T_dl 8
136 #define T_dm 9
137 #define T_ed 10
138 #define T_ei 11
139 #define T_fs 12
140 #define T_ho 13
141 #define T_ic 14
142 #define T_im 15
143 #define T_ip 16
144 #define T_kd 17
145 #define T_kh 18
146 #define T_kl 19
147 #define T_kr 20
148 #define T_ku 21
149 #define T_md 22
150 #define T_me 23
151 #define T_mr 24
152 #define T_nd 25
153 #define T_se 26
154 #define T_so 27
155 #define T_ts 28
156 #define T_up 29
157 #define T_us 30
158 #define T_ue 31
159 #define T_vb 32
160 #define T_DC 33
161 #define T_DO 34
162 #define T_IC 35
163 #define T_LE 36
164 #define T_RI 37
165 #define T_UP 38
166 #define T_str 39
167
168 static struct termcapstr {
169 const char *name;
170 const char *long_name;
171 char *str;
172 } tstr[T_str + 1];
173
174
175 #define T_am 0
176 #define T_pt 1
177 #define T_li 2
178 #define T_co 3
179 #define T_km 4
180 #define T_xn 5
181 #define T_val 6
182 static struct termcapval {
183 const char *name;
184 const char *long_name;
185 int val;
186 } tval[T_val + 1];
187
188 void
189 terminit(void)
190 {
191 #ifdef NLS_CATALOGS
192 int i;
193
194 for (i = 0; i < T_str + 1; i++)
195 xfree((ptr_t)(intptr_t)tstr[i].long_name);
196
197 for (i = 0; i < T_val + 1; i++)
198 xfree((ptr_t)(intptr_t)tval[i].long_name);
199 #endif
200
201 tstr[T_al].name = "al";
202 tstr[T_al].long_name = CSAVS(4, 1, "add new blank line");
203
204 tstr[T_bl].name = "bl";
205 tstr[T_bl].long_name = CSAVS(4, 2, "audible bell");
206
207 tstr[T_cd].name = "cd";
208 tstr[T_cd].long_name = CSAVS(4, 3, "clear to bottom");
209
210 tstr[T_ce].name = "ce";
211 tstr[T_ce].long_name = CSAVS(4, 4, "clear to end of line");
212
213 tstr[T_ch].name = "ch";
214 tstr[T_ch].long_name = CSAVS(4, 5, "cursor to horiz pos");
215
216 tstr[T_cl].name = "cl";
217 tstr[T_cl].long_name = CSAVS(4, 6, "clear screen");
218
219 tstr[T_dc].name = "dc";
220 tstr[T_dc].long_name = CSAVS(4, 7, "delete a character");
221
222 tstr[T_dl].name = "dl";
223 tstr[T_dl].long_name = CSAVS(4, 8, "delete a line");
224
225 tstr[T_dm].name = "dm";
226 tstr[T_dm].long_name = CSAVS(4, 9, "start delete mode");
227
228 tstr[T_ed].name = "ed";
229 tstr[T_ed].long_name = CSAVS(4, 10, "end delete mode");
230
231 tstr[T_ei].name = "ei";
232 tstr[T_ei].long_name = CSAVS(4, 11, "end insert mode");
233
234 tstr[T_fs].name = "fs";
235 tstr[T_fs].long_name = CSAVS(4, 12, "cursor from status line");
236
237 tstr[T_ho].name = "ho";
238 tstr[T_ho].long_name = CSAVS(4, 13, "home cursor");
239
240 tstr[T_ic].name = "ic";
241 tstr[T_ic].long_name = CSAVS(4, 14, "insert character");
242
243 tstr[T_im].name = "im";
244 tstr[T_im].long_name = CSAVS(4, 15, "start insert mode");
245
246 tstr[T_ip].name = "ip";
247 tstr[T_ip].long_name = CSAVS(4, 16, "insert padding");
248
249 tstr[T_kd].name = "kd";
250 tstr[T_kd].long_name = CSAVS(4, 17, "sends cursor down");
251
252 tstr[T_kl].name = "kl";
253 tstr[T_kl].long_name = CSAVS(4, 18, "sends cursor left");
254
255 tstr[T_kr].name = "kr";
256 tstr[T_kr].long_name = CSAVS(4, 19, "sends cursor right");
257
258 tstr[T_ku].name = "ku";
259 tstr[T_ku].long_name = CSAVS(4, 20, "sends cursor up");
260
261 tstr[T_md].name = "md";
262 tstr[T_md].long_name = CSAVS(4, 21, "begin bold");
263
264 tstr[T_me].name = "me";
265 tstr[T_me].long_name = CSAVS(4, 22, "end attributes");
266
267 tstr[T_nd].name = "nd";
268 tstr[T_nd].long_name = CSAVS(4, 23, "non destructive space");
269
270 tstr[T_se].name = "se";
271 tstr[T_se].long_name = CSAVS(4, 24, "end standout");
272
273 tstr[T_so].name = "so";
274 tstr[T_so].long_name = CSAVS(4, 25, "begin standout");
275
276 tstr[T_ts].name = "ts";
277 tstr[T_ts].long_name = CSAVS(4, 26, "cursor to status line");
278
279 tstr[T_up].name = "up";
280 tstr[T_up].long_name = CSAVS(4, 27, "cursor up one");
281
282 tstr[T_us].name = "us";
283 tstr[T_us].long_name = CSAVS(4, 28, "begin underline");
284
285 tstr[T_ue].name = "ue";
286 tstr[T_ue].long_name = CSAVS(4, 29, "end underline");
287
288 tstr[T_vb].name = "vb";
289 tstr[T_vb].long_name = CSAVS(4, 30, "visible bell");
290
291 tstr[T_DC].name = "DC";
292 tstr[T_DC].long_name = CSAVS(4, 31, "delete multiple chars");
293
294 tstr[T_DO].name = "DO";
295 tstr[T_DO].long_name = CSAVS(4, 32, "cursor down multiple");
296
297 tstr[T_IC].name = "IC";
298 tstr[T_IC].long_name = CSAVS(4, 33, "insert multiple chars");
299
300 tstr[T_LE].name = "LE";
301 tstr[T_LE].long_name = CSAVS(4, 34, "cursor left multiple");
302
303 tstr[T_RI].name = "RI";
304 tstr[T_RI].long_name = CSAVS(4, 35, "cursor right multiple");
305
306 tstr[T_UP].name = "UP";
307 tstr[T_UP].long_name = CSAVS(4, 36, "cursor up multiple");
308
309 tstr[T_kh].name = "kh";
310 tstr[T_kh].long_name = CSAVS(4, 43, "send cursor home");
311
312 tstr[T_at7].name = "@7";
313 tstr[T_at7].long_name = CSAVS(4, 44, "send cursor end");
314
315 tstr[T_mr].name = "mr";
316 tstr[T_mr].long_name = CSAVS(4, 45, "begin reverse video");
317
318 tstr[T_str].name = NULL;
319 tstr[T_str].long_name = NULL;
320
321
322 tval[T_am].name = "am";
323 tval[T_am].long_name = CSAVS(4, 37, "Has automatic margins");
324
325 tval[T_pt].name = "pt";
326 tval[T_pt].long_name = CSAVS(4, 38, "Can use physical tabs");
327
328 tval[T_li].name = "li";
329 tval[T_li].long_name = CSAVS(4, 39, "Number of lines");
330
331 tval[T_co].name = "co";
332 tval[T_co].long_name = CSAVS(4, 40, "Number of columns");
333
334 tval[T_km].name = "km";
335 tval[T_km].long_name = CSAVS(4, 41, "Has meta key");
336
337 tval[T_xn].name = "xn";
338 tval[T_xn].long_name = CSAVS(4, 42, "Newline ignored at right margin");
339
340 tval[T_val].name = NULL;
341 tval[T_val].long_name = NULL;
342 }
343
344 /*
345 * A very useful table from justin@crim.ca (Justin Bur) :-)
346 * (Modified by per@erix.ericsson.se (Per Hedeland)
347 * - first (and second:-) case fixed)
348 *
349 * Description Termcap variables tcsh behavior
350 * am xn UseRightmost SendCRLF
351 * -------------- ------- ------- ------------ ------------
352 * Automargins yes no yes no
353 * Magic Margins yes yes yes no
354 * No Wrap no -- yes yes
355 */
356
357 static int me_all = 0; /* does two or more of the attributes use me */
358
359 static void ReBufferDisplay (void);
360 static void TCset (struct termcapstr *, const char *);
361
362
363 static void
364 TCset(struct termcapstr *t, const char *cap)
365 {
366 if (cap == NULL || *cap == '\0') {
367 xfree(t->str);
368 t->str = NULL;
369 } else {
370 size_t size;
371
372 size = strlen(cap) + 1;
373 t->str = xrealloc(t->str, size);
374 memcpy(t->str, cap, size);
375 }
376 }
377
378
379 /*ARGSUSED*/
380 void
381 TellTC(void)
382 {
383 struct termcapstr *t;
384 char *first, *s;
385
386 xprintf("%s", CGETS(7, 1, "\n\tTcsh thinks your terminal has the\n"));
387 xprintf("%s", CGETS(7, 2, "\tfollowing characteristics:\n\n"));
388 xprintf(CGETS(7, 3, "\tIt has %d columns and %d lines\n"),
389 Val(T_co), Val(T_li));
390 s = strsave(T_HasMeta ? CGETS(7, 5, "a") : CGETS(7, 6, "no"));
391 cleanup_push(s, xfree);
392 first = s;
393 xprintf(CGETS(7, 4, "\tIt has %s meta key\n"), s);
394 s = strsave(T_Tabs ? "" : CGETS(7, 8, " not"));
395 cleanup_push(s, xfree);
396 xprintf(CGETS(7, 7, "\tIt can%s use tabs\n"), s);
397 s = strsave((T_Margin&MARGIN_AUTO) ?
398 CGETS(7, 10, "has") : CGETS(7, 11, "does not have"));
399 cleanup_push(s, xfree);
400 xprintf(CGETS(7, 9, "\tIt %s automatic margins\n"), s);
401 if (T_Margin & MARGIN_AUTO) {
402 s = strsave((T_Margin & MARGIN_MAGIC) ?
403 CGETS(7, 10, "has") : CGETS(7, 11, "does not have"));
404 cleanup_push(s, xfree);
405 xprintf(CGETS(7, 12, "\tIt %s magic margins\n"), s);
406 }
407 for (t = tstr; t->name != NULL; t++) {
408 s = strsave(t->str && *t->str ? t->str : CGETS(7, 13, "(empty)"));
409 cleanup_push(s, xfree);
410 xprintf("\t%36s (%s) == %s\n", t->long_name, t->name, s);
411 cleanup_until(s);
412 }
413 xputchar('\n');
414 cleanup_until(first);
415 }
416
417
418 static void
419 ReBufferDisplay(void)
420 {
421 int i;
422 Char **b;
423
424 b = Display;
425 Display = NULL;
426 blkfree(b);
427 b = Vdisplay;
428 Vdisplay = NULL;
429 blkfree(b);
430 TermH = Val(T_co);
431 TermV = (INBUFSIZE * 4) / TermH + 1;/*FIXBUF*/
432 b = xmalloc(sizeof(*b) * (TermV + 1));
433 for (i = 0; i < TermV; i++)
434 b[i] = xmalloc(sizeof(*b[i]) * (TermH + 1));
435 b[TermV] = NULL;
436 Display = b;
437 b = xmalloc(sizeof(*b) * (TermV + 1));
438 for (i = 0; i < TermV; i++)
439 b[i] = xmalloc(sizeof(*b[i]) * (TermH + 1));
440 b[TermV] = NULL;
441 Vdisplay = b;
442 }
443
444 void
445 SetTC(char *what, char *how)
446 {
447 struct termcapstr *ts;
448 struct termcapval *tv;
449
450 /*
451 * Do the strings first
452 */
453 setname("settc");
454 for (ts = tstr; ts->name != NULL; ts++)
455 if (strcmp(ts->name, what) == 0)
456 break;
457 if (ts->name != NULL) {
458 TCset(ts, how);
459 /*
460 * Reset variables
461 */
462 if (GoodStr(T_me) && GoodStr(T_ue))
463 me_all = (strcmp(Str(T_me), Str(T_ue)) == 0);
464 else
465 me_all = 0;
466 if (GoodStr(T_me) && GoodStr(T_se))
467 me_all |= (strcmp(Str(T_me), Str(T_se)) == 0);
468
469 T_CanCEOL = GoodStr(T_ce);
470 T_CanDel = GoodStr(T_dc) || GoodStr(T_DC);
471 T_CanIns = GoodStr(T_im) || GoodStr(T_ic) || GoodStr(T_IC);
472 T_CanUP = GoodStr(T_up) || GoodStr(T_UP);
473 return;
474 }
475
476 /*
477 * Do the numeric ones second
478 */
479 for (tv = tval; tv->name != NULL; tv++)
480 if (strcmp(tv->name, what) == 0)
481 break;
482
483 if (tv->name != NULL) {
484 if (tv == &tval[T_pt] || tv == &tval[T_km] ||
485 tv == &tval[T_am] || tv == &tval[T_xn]) {
486 if (strcmp(how, "yes") == 0)
487 tv->val = 1;
488 else if (strcmp(how, "no") == 0)
489 tv->val = 0;
490 else {
491 stderror(ERR_SETTCUS, tv->name);
492 return;
493 }
494 T_Tabs = Val(T_pt);
495 T_HasMeta = Val(T_km);
496 T_Margin = Val(T_am) ? MARGIN_AUTO : 0;
497 T_Margin |= Val(T_xn) ? MARGIN_MAGIC : 0;
498 if (tv == &tval[T_am] || tv == &tval[T_xn])
499 ChangeSize(Val(T_li), Val(T_co));
500 return;
501 }
502 else {
503 tv->val = atoi(how);
504 T_Cols = (Char) Val(T_co);
505 T_Lines = (Char) Val(T_li);
506 if (tv == &tval[T_co] || tv == &tval[T_li])
507 ChangeSize(Val(T_li), Val(T_co));
508 return;
509 }
510 }
511 stderror(ERR_NAME | ERR_TCCAP, what);
512 return;
513 }
514
515
516 /*
517 * Print the termcap string out with variable substitution
518 */
519 void
520 EchoTC(Char **v)
521 {
522 char *cap, *scap, *cv;
523 int arg_need, arg_cols, arg_rows;
524 int verbose = 0, silent = 0;
525 char *area;
526 static const char fmts[] = "%s\n", fmtd[] = "%d\n";
527 struct termcapstr *t;
528 char buf[TC_BUFSIZE];
529 Char **globbed;
530
531 area = buf;
532
533 setname("echotc");
534
535 v = glob_all_or_error(v);
536 globbed = v;
537 cleanup_push(globbed, blk_cleanup);
538
539 if (!*v || *v[0] == '\0')
540 goto end;
541 if (v[0][0] == '-') {
542 switch (v[0][1]) {
543 case 'v':
544 verbose = 1;
545 break;
546 case 's':
547 silent = 1;
548 break;
549 default:
550 stderror(ERR_NAME | ERR_TCUSAGE);
551 break;
552 }
553 v++;
554 }
555 if (!*v || *v[0] == '\0')
556 goto end;
557 cv = strsave(short2str(*v));
558 cleanup_push(cv, xfree);
559 if (strcmp(cv, "tabs") == 0) {
560 xprintf(fmts, T_Tabs ? CGETS(7, 14, "yes") :
561 CGETS(7, 15, "no"));
562 goto end_flush;
563 }
564 else if (strcmp(cv, "meta") == 0) {
565 xprintf(fmts, Val(T_km) ? CGETS(7, 14, "yes") :
566 CGETS(7, 15, "no"));
567 goto end_flush;
568 }
569 else if (strcmp(cv, "xn") == 0) {
570 xprintf(fmts, T_Margin & MARGIN_MAGIC ? CGETS(7, 14, "yes") :
571 CGETS(7, 15, "no"));
572 goto end_flush;
573 }
574 else if (strcmp(cv, "am") == 0) {
575 xprintf(fmts, T_Margin & MARGIN_AUTO ? CGETS(7, 14, "yes") :
576 CGETS(7, 15, "no"));
577 goto end_flush;
578 }
579 else if (strcmp(cv, "baud") == 0) {
580 int i;
581
582 for (i = 0; baud_rate[i].b_name != NULL; i++)
583 if (T_Speed == baud_rate[i].b_rate) {
584 xprintf(fmts, baud_rate[i].b_name);
585 goto end_flush;
586 }
587 xprintf(fmtd, 0);
588 goto end_flush;
589 }
590 else if (strcmp(cv, "rows") == 0 || strcmp(cv, "lines") == 0 ||
591 strcmp(cv, "li") == 0) {
592 xprintf(fmtd, Val(T_li));
593 goto end_flush;
594 }
595 else if (strcmp(cv, "cols") == 0 || strcmp(cv, "co") == 0) {
596 xprintf(fmtd, Val(T_co));
597 goto end_flush;
598 }
599
600 /*
601 * Try to use our local definition first
602 */
603 scap = NULL;
604 for (t = tstr; t->name != NULL; t++)
605 if (strcmp(t->name, cv) == 0) {
606 scap = t->str;
607 break;
608 }
609 if (t->name == NULL)
610 scap = tgetstr(cv, &area);
611 if (!scap || scap[0] == '\0') {
612 if (tgetflag(cv)) {
613 xprintf("%s", CGETS(7, 14, "yes\n"));
614 goto end;
615 }
616 if (silent)
617 goto end;
618 else
619 stderror(ERR_NAME | ERR_TCCAP, cv);
620 }
621
622 /*
623 * Count home many values we need for this capability.
624 */
625 for (cap = scap, arg_need = 0; *cap; cap++)
626 if (*cap == '%')
627 switch (*++cap) {
628 case 'd':
629 case '2':
630 case '3':
631 case '.':
632 case '+':
633 arg_need++;
634 break;
635 case '%':
636 case '>':
637 case 'i':
638 case 'r':
639 case 'n':
640 case 'B':
641 case 'D':
642 break;
643 default:
644 /*
645 * hpux has lot's of them...
646 */
647 if (verbose)
648 stderror(ERR_NAME | ERR_TCPARM, *cap);
649 /* This is bad, but I won't complain */
650 break;
651 }
652
653 switch (arg_need) {
654 case 0:
655 v++;
656 if (*v && *v[0]) {
657 if (silent)
658 goto end;
659 else
660 stderror(ERR_NAME | ERR_TCARGS, cv, arg_need);
661 }
662 (void) tputs(scap, 1, PUTRAW);
663 break;
664 case 1:
665 v++;
666 if (!*v || *v[0] == '\0')
667 stderror(ERR_NAME | ERR_TCNARGS, cv, 1);
668 arg_cols = 0;
669 arg_rows = atoi(short2str(*v));
670 v++;
671 if (*v && *v[0]) {
672 if (silent)
673 goto end;
674 else
675 stderror(ERR_NAME | ERR_TCARGS, cv, arg_need);
676 }
677 (void) tputs(tgoto(scap, arg_cols, arg_rows), 1, PUTRAW);
678 break;
679 default:
680 /* This is wrong, but I will ignore it... */
681 if (verbose)
682 stderror(ERR_NAME | ERR_TCARGS, cv, arg_need);
683 /*FALLTHROUGH*/
684 case 2:
685 v++;
686 if (!*v || *v[0] == '\0') {
687 if (silent)
688 goto end;
689 else
690 stderror(ERR_NAME | ERR_TCNARGS, cv, 2);
691 }
692 arg_cols = atoi(short2str(*v));
693 v++;
694 if (!*v || *v[0] == '\0') {
695 if (silent)
696 goto end;
697 else
698 stderror(ERR_NAME | ERR_TCNARGS, cv, 2);
699 }
700 arg_rows = atoi(short2str(*v));
701 v++;
702 if (*v && *v[0]) {
703 if (silent)
704 goto end;
705 else
706 stderror(ERR_NAME | ERR_TCARGS, cv, arg_need);
707 }
708 (void) tputs(tgoto(scap, arg_cols, arg_rows), arg_rows, PUTRAW);
709 break;
710 }
711 end_flush:
712 flush();
713 end:
714 cleanup_until(globbed);
715 }
716
717 int GotTermCaps = 0;
718
719 static struct {
720 Char *name;
721 int key;
722 XmapVal fun;
723 int type;
724 } arrow[] = {
725 #define A_K_DN 0
726 { STRdown, T_kd, { 0 }, 0 },
727 #define A_K_UP 1
728 { STRup, T_ku, { 0 }, 0 },
729 #define A_K_LT 2
730 { STRleft, T_kl, { 0 }, 0 },
731 #define A_K_RT 3
732 { STRright, T_kr, { 0 }, 0 },
733 #define A_K_HO 4
734 { STRhome, T_kh, { 0 }, 0 },
735 #define A_K_EN 5
736 { STRend, T_at7, { 0 }, 0}
737 };
738 #define A_K_NKEYS 6
739
740 void
741 ResetArrowKeys(void)
742 {
743 arrow[A_K_DN].fun.cmd = F_DOWN_HIST;
744 arrow[A_K_DN].type = XK_CMD;
745
746 arrow[A_K_UP].fun.cmd = F_UP_HIST;
747 arrow[A_K_UP].type = XK_CMD;
748
749 arrow[A_K_LT].fun.cmd = F_CHARBACK;
750 arrow[A_K_LT].type = XK_CMD;
751
752 arrow[A_K_RT].fun.cmd = F_CHARFWD;
753 arrow[A_K_RT].type = XK_CMD;
754
755 arrow[A_K_HO].fun.cmd = F_TOBEG;
756 arrow[A_K_HO].type = XK_CMD;
757
758 arrow[A_K_EN].fun.cmd = F_TOEND;
759 arrow[A_K_EN].type = XK_CMD;
760 }
761
762 void
763 DefaultArrowKeys(void)
764 {
765 static Char strA[] = {033, '[', 'A', '\0'};
766 static Char strB[] = {033, '[', 'B', '\0'};
767 static Char strC[] = {033, '[', 'C', '\0'};
768 static Char strD[] = {033, '[', 'D', '\0'};
769 static Char strH[] = {033, '[', 'H', '\0'};
770 static Char strF[] = {033, '[', 'F', '\0'};
771 static Char stOA[] = {033, 'O', 'A', '\0'};
772 static Char stOB[] = {033, 'O', 'B', '\0'};
773 static Char stOC[] = {033, 'O', 'C', '\0'};
774 static Char stOD[] = {033, 'O', 'D', '\0'};
775 static Char stOH[] = {033, 'O', 'H', '\0'};
776 static Char stOF[] = {033, 'O', 'F', '\0'};
777
778 CStr cs;
779 #ifndef IS_ASCII
780 if (strA[0] == 033)
781 {
782 strA[0] = CTL_ESC('\033');
783 strB[0] = CTL_ESC('\033');
784 strC[0] = CTL_ESC('\033');
785 strD[0] = CTL_ESC('\033');
786 strH[0] = CTL_ESC('\033');
787 strF[0] = CTL_ESC('\033');
788 stOA[0] = CTL_ESC('\033');
789 stOB[0] = CTL_ESC('\033');
790 stOC[0] = CTL_ESC('\033');
791 stOD[0] = CTL_ESC('\033');
792 stOH[0] = CTL_ESC('\033');
793 stOF[0] = CTL_ESC('\033');
794 }
795 #endif
796
797 cs.len = 3;
798
799 cs.buf = strA; AddXkey(&cs, &arrow[A_K_UP].fun, arrow[A_K_UP].type);
800 cs.buf = strB; AddXkey(&cs, &arrow[A_K_DN].fun, arrow[A_K_DN].type);
801 cs.buf = strC; AddXkey(&cs, &arrow[A_K_RT].fun, arrow[A_K_RT].type);
802 cs.buf = strD; AddXkey(&cs, &arrow[A_K_LT].fun, arrow[A_K_LT].type);
803 cs.buf = strH; AddXkey(&cs, &arrow[A_K_HO].fun, arrow[A_K_HO].type);
804 cs.buf = strF; AddXkey(&cs, &arrow[A_K_EN].fun, arrow[A_K_EN].type);
805 cs.buf = stOA; AddXkey(&cs, &arrow[A_K_UP].fun, arrow[A_K_UP].type);
806 cs.buf = stOB; AddXkey(&cs, &arrow[A_K_DN].fun, arrow[A_K_DN].type);
807 cs.buf = stOC; AddXkey(&cs, &arrow[A_K_RT].fun, arrow[A_K_RT].type);
808 cs.buf = stOD; AddXkey(&cs, &arrow[A_K_LT].fun, arrow[A_K_LT].type);
809 cs.buf = stOH; AddXkey(&cs, &arrow[A_K_HO].fun, arrow[A_K_HO].type);
810 cs.buf = stOF; AddXkey(&cs, &arrow[A_K_EN].fun, arrow[A_K_EN].type);
811
812 if (VImode) {
813 cs.len = 2;
814 cs.buf = &strA[1]; AddXkey(&cs, &arrow[A_K_UP].fun, arrow[A_K_UP].type);
815 cs.buf = &strB[1]; AddXkey(&cs, &arrow[A_K_DN].fun, arrow[A_K_DN].type);
816 cs.buf = &strC[1]; AddXkey(&cs, &arrow[A_K_RT].fun, arrow[A_K_RT].type);
817 cs.buf = &strD[1]; AddXkey(&cs, &arrow[A_K_LT].fun, arrow[A_K_LT].type);
818 cs.buf = &strH[1]; AddXkey(&cs, &arrow[A_K_HO].fun, arrow[A_K_HO].type);
819 cs.buf = &strF[1]; AddXkey(&cs, &arrow[A_K_EN].fun, arrow[A_K_EN].type);
820 cs.buf = &stOA[1]; AddXkey(&cs, &arrow[A_K_UP].fun, arrow[A_K_UP].type);
821 cs.buf = &stOB[1]; AddXkey(&cs, &arrow[A_K_DN].fun, arrow[A_K_DN].type);
822 cs.buf = &stOC[1]; AddXkey(&cs, &arrow[A_K_RT].fun, arrow[A_K_RT].type);
823 cs.buf = &stOD[1]; AddXkey(&cs, &arrow[A_K_LT].fun, arrow[A_K_LT].type);
824 cs.buf = &stOH[1]; AddXkey(&cs, &arrow[A_K_HO].fun, arrow[A_K_HO].type);
825 cs.buf = &stOF[1]; AddXkey(&cs, &arrow[A_K_EN].fun, arrow[A_K_EN].type);
826 }
827 }
828
829
830 int
831 SetArrowKeys(const CStr *name, XmapVal *fun, int type)
832 {
833 int i;
834 for (i = 0; i < A_K_NKEYS; i++)
835 if (Strcmp(name->buf, arrow[i].name) == 0) {
836 arrow[i].fun = *fun;
837 arrow[i].type = type;
838 return 0;
839 }
840 return -1;
841 }
842
843 int
844 IsArrowKey(Char *name)
845 {
846 int i;
847 for (i = 0; i < A_K_NKEYS; i++)
848 if (Strcmp(name, arrow[i].name) == 0)
849 return 1;
850 return 0;
851 }
852
853 int
854 ClearArrowKeys(const CStr *name)
855 {
856 int i;
857 for (i = 0; i < A_K_NKEYS; i++)
858 if (Strcmp(name->buf, arrow[i].name) == 0) {
859 arrow[i].type = XK_NOD;
860 return 0;
861 }
862 return -1;
863 }
864
865 void
866 PrintArrowKeys(const CStr *name)
867 {
868 int i;
869
870 for (i = 0; i < A_K_NKEYS; i++)
871 if (name->len == 0 || Strcmp(name->buf, arrow[i].name) == 0)
872 if (arrow[i].type != XK_NOD)
873 printOne(arrow[i].name, &arrow[i].fun, arrow[i].type);
874 }
875
876
877 void
878 BindArrowKeys(void)
879 {
880 KEYCMD *map, *dmap;
881 int i, j;
882 char *p;
883 CStr cs;
884
885 if (!GotTermCaps)
886 return;
887 map = VImode ? CcAltMap : CcKeyMap;
888 dmap = VImode ? CcViCmdMap : CcEmacsMap;
889
890 DefaultArrowKeys();
891
892 for (i = 0; i < A_K_NKEYS; i++) {
893 p = tstr[arrow[i].key].str;
894 if (p && *p) {
895 j = (unsigned char) *p;
896 cs.buf = str2short(p);
897 cs.len = Strlen(cs.buf);
898 /*
899 * Assign the arrow keys only if:
900 *
901 * 1. They are multi-character arrow keys and the user
902 * has not re-assigned the leading character, or
903 * has re-assigned the leading character to be F_XKEY
904 * 2. They are single arrow keys pointing to an unassigned key.
905 */
906 if (arrow[i].type == XK_NOD) {
907 ClearXkey(map, &cs);
908 }
909 else {
910 if (p[1] && (dmap[j] == map[j] || map[j] == F_XKEY)) {
911 AddXkey(&cs, &arrow[i].fun, arrow[i].type);
912 map[j] = F_XKEY;
913 }
914 else if (map[j] == F_UNASSIGNED) {
915 ClearXkey(map, &cs);
916 if (arrow[i].type == XK_CMD)
917 map[j] = arrow[i].fun.cmd;
918 else
919 AddXkey(&cs, &arrow[i].fun, arrow[i].type);
920 }
921 }
922 }
923 }
924 }
925
926 static Char cur_atr = 0; /* current attributes */
927
928 void
929 SetAttributes(Char atr)
930 {
931 atr &= ATTRIBUTES;
932 if (atr != cur_atr) {
933 if (me_all && GoodStr(T_me)) {
934 if (((cur_atr & BOLD) && !(atr & BOLD)) ||
935 ((cur_atr & UNDER) && !(atr & UNDER)) ||
936 ((cur_atr & STANDOUT) && !(atr & STANDOUT))) {
937 (void) tputs(Str(T_me), 1, PUTPURE);
938 cur_atr = 0;
939 }
940 }
941 if ((atr & BOLD) != (cur_atr & BOLD)) {
942 if (atr & BOLD) {
943 if (GoodStr(T_md) && GoodStr(T_me)) {
944 (void) tputs(Str(T_md), 1, PUTPURE);
945 cur_atr |= BOLD;
946 }
947 }
948 else {
949 if (GoodStr(T_md) && GoodStr(T_me)) {
950 (void) tputs(Str(T_me), 1, PUTPURE);
951 if ((cur_atr & STANDOUT) && GoodStr(T_se)) {
952 (void) tputs(Str(T_se), 1, PUTPURE);
953 cur_atr &= ~STANDOUT;
954 }
955 if ((cur_atr & UNDER) && GoodStr(T_ue)) {
956 (void) tputs(Str(T_ue), 1, PUTPURE);
957 cur_atr &= ~UNDER;
958 }
959 cur_atr &= ~BOLD;
960 }
961 }
962 }
963 if ((atr & STANDOUT) != (cur_atr & STANDOUT)) {
964 if (atr & STANDOUT) {
965 if (GoodStr(T_so) && GoodStr(T_se)) {
966 (void) tputs(Str(T_so), 1, PUTPURE);
967 cur_atr |= STANDOUT;
968 }
969 }
970 else {
971 if (GoodStr(T_se)) {
972 (void) tputs(Str(T_se), 1, PUTPURE);
973 cur_atr &= ~STANDOUT;
974 }
975 }
976 }
977 if ((atr & UNDER) != (cur_atr & UNDER)) {
978 if (atr & UNDER) {
979 if (GoodStr(T_us) && GoodStr(T_ue)) {
980 (void) tputs(Str(T_us), 1, PUTPURE);
981 cur_atr |= UNDER;
982 }
983 }
984 else {
985 if (GoodStr(T_ue)) {
986 (void) tputs(Str(T_ue), 1, PUTPURE);
987 cur_atr &= ~UNDER;
988 }
989 }
990 }
991 }
992 }
993
994 int highlighting = 0;
995
996 void
997 StartHighlight()
998 {
999 (void) tputs(Str(T_mr), 1, PUTPURE);
1000 highlighting = 1;
1001 }
1002
1003 void
1004 StopHighlight()
1005 {
1006 (void) tputs(Str(T_me), 1, PUTPURE);
1007 highlighting = 0;
1008 }
1009
1010 /* PWP 6-27-88 -- if the tty driver thinks that we can tab, we ask termcap */
1011 int
1012 CanWeTab(void)
1013 {
1014 return (Val(T_pt));
1015 }
1016
1017 /* move to line <where> (first line == 0) as efficiently as possible; */
1018 void
1019 MoveToLine(int where)
1020 {
1021 int del;
1022
1023 if (where == CursorV)
1024 return;
1025
1026 if (where > TermV) {
1027 #ifdef DEBUG_SCREEN
1028 xprintf("MoveToLine: where is ridiculous: %d\r\n", where);
1029 flush();
1030 #endif /* DEBUG_SCREEN */
1031 return;
1032 }
1033
1034 del = where - CursorV;
1035
1036 if (del > 0) {
1037 while (del > 0) {
1038 if ((T_Margin & MARGIN_AUTO) && Display[CursorV][0] != '\0') {
1039 size_t h;
1040
1041 for (h = TermH - 1; h > 0 && Display[CursorV][h] == CHAR_DBWIDTH;
1042 h--)
1043 ;
1044 /* move without newline */
1045 MoveToChar(h);
1046 so_write(&Display[CursorV][CursorH], TermH - CursorH); /* updates CursorH/V*/
1047 del--;
1048 }
1049 else {
1050 if ((del > 1) && GoodStr(T_DO)) {
1051 (void) tputs(tgoto(Str(T_DO), del, del), del, PUTPURE);
1052 del = 0;
1053 }
1054 else {
1055 for ( ; del > 0; del--)
1056 (void) putraw('\n');
1057 CursorH = 0; /* because the \n will become \r\n */
1058 }
1059 }
1060 }
1061 }
1062 else { /* del < 0 */
1063 if (GoodStr(T_UP) && (-del > 1 || !GoodStr(T_up)))
1064 (void) tputs(tgoto(Str(T_UP), -del, -del), -del, PUTPURE);
1065 else {
1066 int i;
1067 if (GoodStr(T_up))
1068 for (i = 0; i < -del; i++)
1069 (void) tputs(Str(T_up), 1, PUTPURE);
1070 }
1071 }
1072 CursorV = where; /* now where is here */
1073 }
1074
1075 void
1076 MoveToChar(int where) /* move to character position (where) */
1077 { /* as efficiently as possible */
1078 int del;
1079
1080 mc_again:
1081 if (where == CursorH)
1082 return;
1083
1084 if (where >= TermH) {
1085 #ifdef DEBUG_SCREEN
1086 xprintf("MoveToChar: where is riduculous: %d\r\n", where);
1087 flush();
1088 #endif /* DEBUG_SCREEN */
1089 return;
1090 }
1091
1092 if (!where) { /* if where is first column */
1093 (void) putraw('\r'); /* do a CR */
1094 CursorH = 0;
1095 return;
1096 }
1097
1098 del = where - CursorH;
1099
1100 if ((del < -4 || del > 4) && GoodStr(T_ch))
1101 /* go there directly */
1102 (void) tputs(tgoto(Str(T_ch), where, where), where, PUTPURE);
1103 else {
1104 int i;
1105 if (del > 0) { /* moving forward */
1106 if ((del > 4) && GoodStr(T_RI))
1107 (void) tputs(tgoto(Str(T_RI), del, del), del, PUTPURE);
1108 else {
1109 /* if I can do tabs, use them */
1110 if (T_Tabs) {
1111 if ((CursorH & 0370) != (where & ~0x7)
1112 && Display[CursorV][where & ~0x7] != CHAR_DBWIDTH) {
1113 /* if not within tab stop */
1114 for (i = (CursorH & 0370); i < (where & ~0x7); i += 8)
1115 (void) putraw('\t'); /* then tab over */
1116 CursorH = where & ~0x7;
1117 /* Note: considering that we often want to go to
1118 TermH - 1 for the wrapping, it would be nice to
1119 optimize this case by tabbing to the last column
1120 - but this doesn't work for all terminals! */
1121 }
1122 }
1123 /* it's usually cheaper to just write the chars, so we do. */
1124
1125 /* NOTE THAT so_write() WILL CHANGE CursorH!!! */
1126 so_write(&Display[CursorV][CursorH], where - CursorH);
1127
1128 }
1129 }
1130 else { /* del < 0 := moving backward */
1131 if ((-del > 4) && GoodStr(T_LE))
1132 (void) tputs(tgoto(Str(T_LE), -del, -del), -del, PUTPURE);
1133 else { /* can't go directly there */
1134 /* if the "cost" is greater than the "cost" from col 0 */
1135 if (T_Tabs ? (-del > ((where >> 3) + (where & 07)))
1136 : (-del > where)) {
1137 (void) putraw('\r'); /* do a CR */
1138 CursorH = 0;
1139 goto mc_again; /* and try again */
1140 }
1141 for (i = 0; i < -del; i++)
1142 (void) putraw('\b');
1143 }
1144 }
1145 }
1146 CursorH = where; /* now where is here */
1147 }
1148
1149 void
1150 so_write(Char *cp, int n)
1151 {
1152 int cur_pos, prompt_len = 0, region_start = 0, region_end = 0;
1153
1154 if (n <= 0)
1155 return; /* catch bugs */
1156
1157 if (n > TermH) {
1158 #ifdef DEBUG_SCREEN
1159 xprintf("so_write: n is riduculous: %d\r\n", n);
1160 flush();
1161 #endif /* DEBUG_SCREEN */
1162 return;
1163 }
1164
1165 if (adrof(STRhighlight)) {
1166 /* find length of prompt */
1167 Char *promptc;
1168 for (promptc = Prompt; *promptc; promptc++);
1169 prompt_len = promptc - Prompt;
1170
1171 /* find region start and end points */
1172 if (IncMatchLen) {
1173 region_start = (Cursor - InputBuf) + prompt_len;
1174 region_end = region_start + IncMatchLen;
1175 } else if (MarkIsSet) {
1176 region_start = (min(Cursor, Mark) - InputBuf) + prompt_len;
1177 region_end = (max(Cursor, Mark) - InputBuf) + prompt_len;
1178 }
1179 }
1180
1181 do {
1182 if (adrof(STRhighlight)) {
1183 cur_pos = CursorV * TermH + CursorH;
1184 if (!highlighting &&
1185 cur_pos >= region_start && cur_pos < region_end)
1186 StartHighlight();
1187 else if (highlighting && cur_pos >= region_end)
1188 StopHighlight();
1189
1190 /* don't highlight over the cursor. the highlighting's reverse
1191 * video would cancel it out. :P */
1192 if (highlighting && cur_pos == (Cursor - InputBuf) + prompt_len)
1193 StopHighlight();
1194 }
1195
1196 if (*cp != CHAR_DBWIDTH) {
1197 if (*cp & LITERAL) {
1198 Char *d;
1199 #ifdef DEBUG_LITERAL
1200 xprintf("so: litnum %d\r\n", (int)(*cp & ~LITERAL));
1201 #endif /* DEBUG_LITERAL */
1202 for (d = litptr + (*cp & ~LITERAL) * LIT_FACTOR; *d; d++)
1203 (void) putwraw(*d);
1204 }
1205 else
1206 (void) putwraw(*cp);
1207 }
1208 cp++;
1209 CursorH++;
1210 } while (--n);
1211
1212 if (adrof(STRhighlight) && highlighting)
1213 StopHighlight();
1214
1215 if (CursorH >= TermH) { /* wrap? */
1216 if (T_Margin & MARGIN_AUTO) { /* yes */
1217 CursorH = 0;
1218 CursorV++;
1219 if (T_Margin & MARGIN_MAGIC) {
1220 /* force the wrap to avoid the "magic" situation */
1221 Char xc;
1222 if ((xc = Display[CursorV][CursorH]) != '\0') {
1223 so_write(&xc, 1);
1224 while(Display[CursorV][CursorH] == CHAR_DBWIDTH)
1225 CursorH++;
1226 }
1227 else {
1228 (void) putraw(' ');
1229 CursorH = 1;
1230 }
1231 }
1232 }
1233 else /* no wrap, but cursor stays on screen */
1234 CursorH = TermH - 1;
1235 }
1236 }
1237
1238
1239 void
1240 DeleteChars(int num) /* deletes <num> characters */
1241 {
1242 if (num <= 0)
1243 return;
1244
1245 if (!T_CanDel) {
1246 #ifdef DEBUG_EDIT
1247 xprintf(CGETS(7, 16, "ERROR: cannot delete\r\n"));
1248 #endif /* DEBUG_EDIT */
1249 flush();
1250 return;
1251 }
1252
1253 if (num > TermH) {
1254 #ifdef DEBUG_SCREEN
1255 xprintf(CGETS(7, 17, "DeleteChars: num is riduculous: %d\r\n"), num);
1256 flush();
1257 #endif /* DEBUG_SCREEN */
1258 return;
1259 }
1260
1261 if (GoodStr(T_DC)) /* if I have multiple delete */
1262 if ((num > 1) || !GoodStr(T_dc)) { /* if dc would be more expen. */
1263 (void) tputs(tgoto(Str(T_DC), num, num), num, PUTPURE);
1264 return;
1265 }
1266
1267 if (GoodStr(T_dm)) /* if I have delete mode */
1268 (void) tputs(Str(T_dm), 1, PUTPURE);
1269
1270 if (GoodStr(T_dc)) /* else do one at a time */
1271 while (num--)
1272 (void) tputs(Str(T_dc), 1, PUTPURE);
1273
1274 if (GoodStr(T_ed)) /* if I have delete mode */
1275 (void) tputs(Str(T_ed), 1, PUTPURE);
1276 }
1277
1278 /* Puts terminal in insert character mode, or inserts num characters in the
1279 line */
1280 void
1281 Insert_write(Char *cp, int num)
1282 {
1283 if (num <= 0)
1284 return;
1285 if (!T_CanIns) {
1286 #ifdef DEBUG_EDIT
1287 xprintf(CGETS(7, 18, "ERROR: cannot insert\r\n"));
1288 #endif /* DEBUG_EDIT */
1289 flush();
1290 return;
1291 }
1292
1293 if (num > TermH) {
1294 #ifdef DEBUG_SCREEN
1295 xprintf(CGETS(7, 19, "StartInsert: num is riduculous: %d\r\n"), num);
1296 flush();
1297 #endif /* DEBUG_SCREEN */
1298 return;
1299 }
1300
1301 if (GoodStr(T_IC)) /* if I have multiple insert */
1302 if ((num > 1) || !GoodStr(T_ic)) { /* if ic would be more expen. */
1303 (void) tputs(tgoto(Str(T_IC), num, num), num, PUTPURE);
1304 so_write(cp, num); /* this updates CursorH/V */
1305 return;
1306 }
1307
1308 if (GoodStr(T_im) && GoodStr(T_ei)) { /* if I have insert mode */
1309 (void) tputs(Str(T_im), 1, PUTPURE);
1310
1311 so_write(cp, num); /* this updates CursorH/V */
1312
1313 if (GoodStr(T_ip)) /* have to make num chars insert */
1314 (void) tputs(Str(T_ip), 1, PUTPURE);
1315
1316 (void) tputs(Str(T_ei), 1, PUTPURE);
1317 return;
1318 }
1319
1320 do {
1321 if (GoodStr(T_ic)) /* have to make num chars insert */
1322 (void) tputs(Str(T_ic), 1, PUTPURE); /* insert a char */
1323
1324 so_write(cp++, 1); /* this updates CursorH/V */
1325
1326 if (GoodStr(T_ip)) /* have to make num chars insert */
1327 (void) tputs(Str(T_ip), 1, PUTPURE);/* pad the inserted char */
1328
1329 } while (--num);
1330
1331 }
1332
1333 /* clear to end of line. There are num characters to clear */
1334 void
1335 ClearEOL(int num)
1336 {
1337 int i;
1338
1339 if (num <= 0)
1340 return;
1341
1342 if (T_CanCEOL && GoodStr(T_ce))
1343 (void) tputs(Str(T_ce), 1, PUTPURE);
1344 else {
1345 for (i = 0; i < num; i++)
1346 (void) putraw(' ');
1347 CursorH += num; /* have written num spaces */
1348 }
1349 }
1350
1351 void
1352 ClearScreen(void)
1353 { /* clear the whole screen and home */
1354 if (GoodStr(T_cl))
1355 /* send the clear screen code */
1356 (void) tputs(Str(T_cl), Val(T_li), PUTPURE);
1357 else if (GoodStr(T_ho) && GoodStr(T_cd)) {
1358 (void) tputs(Str(T_ho), Val(T_li), PUTPURE); /* home */
1359 /* clear to bottom of screen */
1360 (void) tputs(Str(T_cd), Val(T_li), PUTPURE);
1361 }
1362 else {
1363 (void) putraw('\r');
1364 (void) putraw('\n');
1365 }
1366 }
1367
1368 void
1369 SoundBeep(void)
1370 { /* produce a sound */
1371 beep_cmd ();
1372 if (adrof(STRnobeep))
1373 return;
1374
1375 if (GoodStr(T_vb) && adrof(STRvisiblebell))
1376 (void) tputs(Str(T_vb), 1, PUTPURE); /* visible bell */
1377 else if (GoodStr(T_bl))
1378 /* what termcap says we should use */
1379 (void) tputs(Str(T_bl), 1, PUTPURE);
1380 else
1381 (void) putraw(CTL_ESC('\007')); /* an ASCII bell; ^G */
1382 }
1383
1384 void
1385 ClearToBottom(void)
1386 { /* clear to the bottom of the screen */
1387 if (GoodStr(T_cd))
1388 (void) tputs(Str(T_cd), Val(T_li), PUTPURE);
1389 else if (GoodStr(T_ce))
1390 (void) tputs(Str(T_ce), Val(T_li), PUTPURE);
1391 }
1392
1393 void
1394 GetTermCaps(void)
1395 { /* read in the needed terminal capabilites */
1396 int i;
1397 const char *ptr;
1398 char buf[TC_BUFSIZE];
1399 static char bp[TC_BUFSIZE];
1400 char *area;
1401 struct termcapstr *t;
1402
1403
1404 #ifdef SIG_WINDOW
1405 sigset_t oset, set;
1406 int lins, cols;
1407
1408 /* don't want to confuse things here */
1409 sigemptyset(&set);
1410 sigaddset(&set, SIG_WINDOW);
1411 (void)sigprocmask(SIG_BLOCK, &set, &oset);
1412 cleanup_push(&oset, sigprocmask_cleanup);
1413 #endif /* SIG_WINDOW */
1414 area = buf;
1415
1416 GotTermCaps = 1;
1417
1418 setname("gettermcaps");
1419 ptr = getenv("TERM");
1420
1421 #ifdef apollo
1422 /*
1423 * If we are on a pad, we pretend that we are dumb. Otherwise the termcap
1424 * library will put us in a weird screen mode, thinking that we are going
1425 * to use curses
1426 */
1427 if (isapad())
1428 ptr = "dumb";
1429 #endif /* apollo */
1430
1431 if (!ptr || !ptr[0] || !strcmp(ptr, "wm") || !strcmp(ptr,"dmx"))
1432 ptr = "dumb";
1433
1434 setzero(bp, TC_BUFSIZE);
1435
1436 i = tgetent(bp, ptr);
1437 if (i <= 0) {
1438 if (i == -1) {
1439 #if (SYSVREL == 0) || defined(IRIS3D)
1440 xprintf(CGETS(7, 20, "%s: Cannot open /etc/termcap.\n"), progname);
1441 }
1442 else if (i == 0) {
1443 #endif /* SYSVREL */
1444 xprintf(CGETS(7, 21,
1445 "%s: No entry for terminal type \"%s\"\n"), progname,
1446 getenv("TERM"));
1447 }
1448 xprintf(CGETS(7, 22, "%s: using dumb terminal settings.\n"), progname);
1449 Val(T_co) = 80; /* do a dumb terminal */
1450 Val(T_pt) = Val(T_km) = Val(T_li) = 0;
1451 for (t = tstr; t->name != NULL; t++)
1452 TCset(t, NULL);
1453 }
1454 else {
1455 /* Can we tab */
1456 Val(T_pt) = tgetflag("pt") && !tgetflag("xt");
1457 /* do we have a meta? */
1458 Val(T_km) = (tgetflag("km") || tgetflag("MT"));
1459 Val(T_am) = tgetflag("am");
1460 Val(T_xn) = tgetflag("xn");
1461 Val(T_co) = tgetnum("co");
1462 Val(T_li) = tgetnum("li");
1463 for (t = tstr; t->name != NULL; t++)
1464 TCset(t, tgetstr(t->name, &area));
1465 }
1466 if (Val(T_co) < 2)
1467 Val(T_co) = 80; /* just in case */
1468 if (Val(T_li) < 1)
1469 Val(T_li) = 24;
1470
1471 T_Cols = (Char) Val(T_co);
1472 T_Lines = (Char) Val(T_li);
1473 if (T_Tabs)
1474 T_Tabs = Val(T_pt);
1475 T_HasMeta = Val(T_km);
1476 T_Margin = Val(T_am) ? MARGIN_AUTO : 0;
1477 T_Margin |= Val(T_xn) ? MARGIN_MAGIC : 0;
1478 T_CanCEOL = GoodStr(T_ce);
1479 T_CanDel = GoodStr(T_dc) || GoodStr(T_DC);
1480 T_CanIns = GoodStr(T_im) || GoodStr(T_ic) || GoodStr(T_IC);
1481 T_CanUP = GoodStr(T_up) || GoodStr(T_UP);
1482 if (GoodStr(T_me) && GoodStr(T_ue))
1483 me_all = (strcmp(Str(T_me), Str(T_ue)) == 0);
1484 else
1485 me_all = 0;
1486 if (GoodStr(T_me) && GoodStr(T_se))
1487 me_all |= (strcmp(Str(T_me), Str(T_se)) == 0);
1488
1489
1490 #ifdef DEBUG_SCREEN
1491 if (!T_CanUP) {
1492 xprintf(CGETS(7, 23, "%s: WARNING: Your terminal cannot move up.\n",
1493 progname));
1494 xprintf(CGETS(7, 24, "Editing may be odd for long lines.\n"));
1495 }
1496 if (!T_CanCEOL)
1497 xprintf(CGETS(7, 25, "no clear EOL capability.\n"));
1498 if (!T_CanDel)
1499 xprintf(CGETS(7, 26, "no delete char capability.\n"));
1500 if (!T_CanIns)
1501 xprintf(CGETS(7, 27, "no insert char capability.\n"));
1502 #endif /* DEBUG_SCREEN */
1503
1504
1505
1506 #ifdef SIG_WINDOW
1507 (void) GetSize(&lins, &cols); /* get the correct window size */
1508 ChangeSize(lins, cols);
1509
1510 cleanup_until(&oset); /* can change it again */
1511 #else /* SIG_WINDOW */
1512 ChangeSize(Val(T_li), Val(T_co));
1513 #endif /* SIG_WINDOW */
1514
1515 BindArrowKeys();
1516 }
1517
1518 #ifdef SIG_WINDOW
1519 /* GetSize():
1520 * Return the new window size in lines and cols, and
1521 * true if the size was changed. This can fail if SHIN
1522 * is not a tty, but it will work in most cases.
1523 */
1524 int
1525 GetSize(int *lins, int *cols)
1526 {
1527 *cols = Val(T_co);
1528 *lins = Val(T_li);
1529
1530 #ifdef TIOCGWINSZ
1531 # define KNOWsize
1532 # ifndef lint
1533 {
1534 struct winsize ws; /* from 4.3 */
1535
1536 if (ioctl(SHIN, TIOCGWINSZ, (ioctl_t) &ws) != -1) {
1537 if (ws.ws_col)
1538 *cols = ws.ws_col;
1539 if (ws.ws_row)
1540 *lins = ws.ws_row;
1541 }
1542 }
1543 # endif /* !lint */
1544 #else /* TIOCGWINSZ */
1545 # ifdef TIOCGSIZE
1546 # define KNOWsize
1547 {
1548 struct ttysize ts; /* from Sun */
1549
1550 if (ioctl(SHIN, TIOCGSIZE, (ioctl_t) &ts) != -1) {
1551 if (ts.ts_cols)
1552 *cols = ts.ts_cols;
1553 if (ts.ts_lines)
1554 *lins = ts.ts_lines;
1555 }
1556 }
1557 # endif /* TIOCGSIZE */
1558 #endif /* TIOCGWINSZ */
1559
1560 return (Val(T_co) != *cols || Val(T_li) != *lins);
1561 }
1562
1563 #endif /* SIG_WINDOW */
1564
1565 void
1566 ChangeSize(int lins, int cols)
1567 {
1568 /*
1569 * Just in case
1570 */
1571 Val(T_co) = (cols < 2) ? 80 : cols;
1572 Val(T_li) = (lins < 1) ? 24 : lins;
1573
1574 #ifdef KNOWsize
1575 /*
1576 * We want to affect the environment only when we have a valid
1577 * setup, not when we get bad settings. Consider the following scenario:
1578 * We just logged in, and we have not initialized the editor yet.
1579 * We reset termcap with tset, and not $TERMCAP has the right
1580 * terminal size. But since the editor is not initialized yet, and
1581 * the kernel's notion of the terminal size might be wrong we arrive
1582 * here with lines = columns = 0. If we reset the environment we lose
1583 * our only chance to get the window size right.
1584 */
1585 if (Val(T_co) == cols && Val(T_li) == lins) {
1586 Char *p;
1587 char *tptr;
1588
1589 if (getenv("COLUMNS")) {
1590 p = Itoa(Val(T_co), 0, 0);
1591 cleanup_push(p, xfree);
1592 tsetenv(STRCOLUMNS, p);
1593 cleanup_until(p);
1594 }
1595
1596 if (getenv("LINES")) {
1597 p = Itoa(Val(T_li), 0, 0);
1598 cleanup_push(p, xfree);
1599 tsetenv(STRLINES, p);
1600 cleanup_until(p);
1601 }
1602
1603 if ((tptr = getenv("TERMCAP")) != NULL) {
1604 /* Leave 64 characters slop in case we enlarge the termcap string */
1605 Char termcap[TC_BUFSIZE+64], backup[TC_BUFSIZE+64], *ptr;
1606 Char buf[4];
1607
1608 ptr = str2short(tptr);
1609 (void) Strncpy(termcap, ptr, TC_BUFSIZE);
1610 termcap[TC_BUFSIZE-1] = '\0';
1611
1612 /* update termcap string; first do columns */
1613 buf[0] = 'c';
1614 buf[1] = 'o';
1615 buf[2] = '#';
1616 buf[3] = '\0';
1617 if ((ptr = Strstr(termcap, buf)) == NULL) {
1618 (void) Strcpy(backup, termcap);
1619 }
1620 else {
1621 size_t len = (ptr - termcap) + Strlen(buf);
1622 (void) Strncpy(backup, termcap, len);
1623 backup[len] = '\0';
1624 p = Itoa(Val(T_co), 0, 0);
1625 (void) Strcat(backup + len, p);
1626 xfree(p);
1627 ptr = Strchr(ptr, ':');
1628 (void) Strcat(backup, ptr);
1629 }
1630
1631 /* now do lines */
1632 buf[0] = 'l';
1633 buf[1] = 'i';
1634 buf[2] = '#';
1635 buf[3] = '\0';
1636 if ((ptr = Strstr(backup, buf)) == NULL) {
1637 (void) Strcpy(termcap, backup);
1638 }
1639 else {
1640 size_t len = (ptr - backup) + Strlen(buf);
1641 (void) Strncpy(termcap, backup, len);
1642 termcap[len] = '\0';
1643 p = Itoa(Val(T_li), 0, 0);
1644 (void) Strcat(termcap, p);
1645 xfree(p);
1646 ptr = Strchr(ptr, ':');
1647 (void) Strcat(termcap, ptr);
1648 }
1649 /*
1650 * Chop the termcap string at TC_BUFSIZE-1 characters to avoid
1651 * core-dumps in the termcap routines
1652 */
1653 termcap[TC_BUFSIZE - 1] = '\0';
1654 tsetenv(STRTERMCAP, termcap);
1655 }
1656 }
1657 #endif /* KNOWsize */
1658
1659 ReBufferDisplay(); /* re-make display buffers */
1660 ClearDisp();
1661 }
DragonFly BSD