1
/* $NetBSD: terminal.c,v 1.10 2011/10/04 15:27:04 christos Exp $ */
4
* Copyright (c) 1992, 1993
5
* The Regents of the University of California. All rights reserved.
7
* This code is derived from software contributed to Berkeley by
8
* Christos Zoulas of Cornell University.
10
* Redistribution and use in source and binary forms, with or without
11
* modification, are permitted provided that the following conditions
13
* 1. Redistributions of source code must retain the above copyright
14
* notice, this list of conditions and the following disclaimer.
15
* 2. Redistributions in binary form must reproduce the above copyright
16
* notice, this list of conditions and the following disclaimer in the
17
* documentation and/or other materials provided with the distribution.
18
* 3. Neither the name of the University nor the names of its contributors
19
* may be used to endorse or promote products derived from this software
20
* without specific prior written permission.
22
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36
#if !defined(lint) && !defined(SCCSID)
38
static char sccsid[] = "@(#)term.c 8.2 (Berkeley) 4/30/95";
41
#endif /* not lint && not SCCSID */
44
* terminal.c: Editor/termcap-curses interface
45
* We have to declare a static variable here, since the
46
* termcap putchar routine does not take an argument!
54
#if 0 /* TODO: do we need this */
65
/* Solaris's term.h does horrid things. */
66
#if defined(HAVE_TERM_H) && !defined(__sun)
70
#include <sys/types.h>
71
#include <sys/ioctl.h>
80
* IMPORTANT NOTE: these routines are allowed to look at the current screen
81
* and the current position assuming that it is correct. If this is not
82
* true, then the update will be WRONG! This is (should be) a valid
86
#define TC_BUFSIZE ((size_t)2048)
88
#define GoodStr(a) (el->el_terminal.t_str[a] != NULL && \
89
el->el_terminal.t_str[a][0] != '\0')
90
#define Str(a) el->el_terminal.t_str[a]
91
#define Val(a) el->el_terminal.t_val[a]
93
private const struct termcapstr {
95
const char *long_name;
98
{ "al", "add new blank line" },
100
{ "bl", "audible bell" },
102
{ "cd", "clear to bottom" },
104
{ "ce", "clear to end of line" },
106
{ "ch", "cursor to horiz pos" },
108
{ "cl", "clear screen" },
110
{ "dc", "delete a character" },
112
{ "dl", "delete a line" },
114
{ "dm", "start delete mode" },
116
{ "ed", "end delete mode" },
118
{ "ei", "end insert mode" },
120
{ "fs", "cursor from status line" },
122
{ "ho", "home cursor" },
124
{ "ic", "insert character" },
126
{ "im", "start insert mode" },
128
{ "ip", "insert padding" },
130
{ "kd", "sends cursor down" },
132
{ "kl", "sends cursor left" },
134
{ "kr", "sends cursor right" },
136
{ "ku", "sends cursor up" },
138
{ "md", "begin bold" },
140
{ "me", "end attributes" },
142
{ "nd", "non destructive space" },
144
{ "se", "end standout" },
146
{ "so", "begin standout" },
148
{ "ts", "cursor to status line" },
150
{ "up", "cursor up one" },
152
{ "us", "begin underline" },
154
{ "ue", "end underline" },
156
{ "vb", "visible bell" },
158
{ "DC", "delete multiple chars" },
160
{ "DO", "cursor down multiple" },
162
{ "IC", "insert multiple chars" },
164
{ "LE", "cursor left multiple" },
166
{ "RI", "cursor right multiple" },
168
{ "UP", "cursor up multiple" },
170
{ "kh", "send cursor home" },
172
{ "@7", "send cursor end" },
177
private const struct termcapval {
179
const char *long_name;
182
{ "am", "has automatic margins" },
184
{ "pt", "has physical tabs" },
186
{ "li", "Number of lines" },
188
{ "co", "Number of columns" },
190
{ "km", "Has meta key" },
192
{ "xt", "Tab chars destructive" },
194
{ "xn", "newline ignored at right margin" },
196
{ "MT", "Has meta key" }, /* XXX? */
200
/* do two or more of the attributes use me */
202
private void terminal_setflags(EditLine *);
203
private int terminal_rebuffer_display(EditLine *);
204
private void terminal_free_display(EditLine *);
205
private int terminal_alloc_display(EditLine *);
206
private void terminal_alloc(EditLine *, const struct termcapstr *,
208
private void terminal_init_arrow(EditLine *);
209
private void terminal_reset_arrow(EditLine *);
210
private int terminal_putc(int);
211
private void terminal_tputs(EditLine *, const char *, int);
214
private pthread_mutex_t terminal_mutex = PTHREAD_MUTEX_INITIALIZER;
216
private FILE *terminal_outfile = NULL;
219
/* terminal_setflags():
220
* Set the terminal capability flags
223
terminal_setflags(EditLine *el)
226
if (el->el_tty.t_tabs)
227
EL_FLAGS |= (Val(T_pt) && !Val(T_xt)) ? TERM_CAN_TAB : 0;
229
EL_FLAGS |= (Val(T_km) || Val(T_MT)) ? TERM_HAS_META : 0;
230
EL_FLAGS |= GoodStr(T_ce) ? TERM_CAN_CEOL : 0;
231
EL_FLAGS |= (GoodStr(T_dc) || GoodStr(T_DC)) ? TERM_CAN_DELETE : 0;
232
EL_FLAGS |= (GoodStr(T_im) || GoodStr(T_ic) || GoodStr(T_IC)) ?
234
EL_FLAGS |= (GoodStr(T_up) || GoodStr(T_UP)) ? TERM_CAN_UP : 0;
235
EL_FLAGS |= Val(T_am) ? TERM_HAS_AUTO_MARGINS : 0;
236
EL_FLAGS |= Val(T_xn) ? TERM_HAS_MAGIC_MARGINS : 0;
238
if (GoodStr(T_me) && GoodStr(T_ue))
239
EL_FLAGS |= (strcmp(Str(T_me), Str(T_ue)) == 0) ?
242
EL_FLAGS &= ~TERM_CAN_ME;
243
if (GoodStr(T_me) && GoodStr(T_se))
244
EL_FLAGS |= (strcmp(Str(T_me), Str(T_se)) == 0) ?
250
(void) fprintf(el->el_errfile,
251
"WARNING: Your terminal cannot move up.\n");
252
(void) fprintf(el->el_errfile,
253
"Editing may be odd for long lines.\n");
256
(void) fprintf(el->el_errfile, "no clear EOL capability.\n");
258
(void) fprintf(el->el_errfile, "no delete char capability.\n");
260
(void) fprintf(el->el_errfile, "no insert char capability.\n");
261
#endif /* DEBUG_SCREEN */
265
* Initialize the terminal stuff
268
terminal_init(EditLine *el)
271
el->el_terminal.t_buf = el_malloc(TC_BUFSIZE *
272
sizeof(*el->el_terminal.t_buf));
273
if (el->el_terminal.t_buf == NULL)
275
el->el_terminal.t_cap = el_malloc(TC_BUFSIZE *
276
sizeof(*el->el_terminal.t_cap));
277
if (el->el_terminal.t_cap == NULL)
279
el->el_terminal.t_fkey = el_malloc(A_K_NKEYS *
280
sizeof(*el->el_terminal.t_fkey));
281
if (el->el_terminal.t_fkey == NULL)
283
el->el_terminal.t_loc = 0;
284
el->el_terminal.t_str = el_malloc(T_str *
285
sizeof(*el->el_terminal.t_str));
286
if (el->el_terminal.t_str == NULL)
288
(void) memset(el->el_terminal.t_str, 0, T_str *
289
sizeof(*el->el_terminal.t_str));
290
el->el_terminal.t_val = el_malloc(T_val *
291
sizeof(*el->el_terminal.t_val));
292
if (el->el_terminal.t_val == NULL)
294
(void) memset(el->el_terminal.t_val, 0, T_val *
295
sizeof(*el->el_terminal.t_val));
296
(void) terminal_set(el, NULL);
297
terminal_init_arrow(el);
302
* Clean up the terminal stuff
305
terminal_end(EditLine *el)
308
el_free(el->el_terminal.t_buf);
309
el->el_terminal.t_buf = NULL;
310
el_free(el->el_terminal.t_cap);
311
el->el_terminal.t_cap = NULL;
312
el->el_terminal.t_loc = 0;
313
el_free(el->el_terminal.t_str);
314
el->el_terminal.t_str = NULL;
315
el_free(el->el_terminal.t_val);
316
el->el_terminal.t_val = NULL;
317
el_free(el->el_terminal.t_fkey);
318
el->el_terminal.t_fkey = NULL;
319
terminal_free_display(el);
324
* Maintain a string pool for termcap strings
327
terminal_alloc(EditLine *el, const struct termcapstr *t, const char *cap)
329
char termbuf[TC_BUFSIZE];
331
char **tlist = el->el_terminal.t_str;
332
char **tmp, **str = &tlist[t - tstr];
334
if (cap == NULL || *cap == '\0') {
340
tlen = *str == NULL ? 0 : strlen(*str);
343
* New string is shorter; no need to allocate space
347
(void) strcpy(*str, cap); /* XXX strcpy is safe */
351
* New string is longer; see if we have enough space to append
353
if (el->el_terminal.t_loc + 3 < TC_BUFSIZE) {
354
/* XXX strcpy is safe */
355
(void) strcpy(*str = &el->el_terminal.t_buf[
356
el->el_terminal.t_loc], cap);
357
el->el_terminal.t_loc += clen + 1; /* one for \0 */
361
* Compact our buffer; no need to check compaction, cause we know it
365
for (tmp = tlist; tmp < &tlist[T_str]; tmp++)
366
if (*tmp != NULL && *tmp != '\0' && *tmp != *str) {
369
for (ptr = *tmp; *ptr != '\0'; termbuf[tlen++] = *ptr++)
371
termbuf[tlen++] = '\0';
373
memcpy(el->el_terminal.t_buf, termbuf, TC_BUFSIZE);
374
el->el_terminal.t_loc = tlen;
375
if (el->el_terminal.t_loc + 3 >= TC_BUFSIZE) {
376
(void) fprintf(el->el_errfile,
377
"Out of termcap string space.\n");
380
/* XXX strcpy is safe */
381
(void) strcpy(*str = &el->el_terminal.t_buf[el->el_terminal.t_loc],
383
el->el_terminal.t_loc += (size_t)clen + 1; /* one for \0 */
388
/* terminal_rebuffer_display():
389
* Rebuffer the display after the screen changed size
392
terminal_rebuffer_display(EditLine *el)
394
coord_t *c = &el->el_terminal.t_size;
396
terminal_free_display(el);
401
if (terminal_alloc_display(el) == -1)
407
/* terminal_alloc_display():
408
* Allocate a new display.
411
terminal_alloc_display(EditLine *el)
415
coord_t *c = &el->el_terminal.t_size;
417
b = el_malloc(sizeof(*b) * (size_t)(c->v + 1));
420
for (i = 0; i < c->v; i++) {
421
b[i] = el_malloc(sizeof(**b) * (size_t)(c->h + 1));
432
b = el_malloc(sizeof(*b) * (size_t)(c->v + 1));
435
for (i = 0; i < c->v; i++) {
436
b[i] = el_malloc(sizeof(**b) * (size_t)(c->h + 1));
450
/* terminal_free_display():
451
* Free the display buffers
454
terminal_free_display(EditLine *el)
460
el->el_display = NULL;
462
for (bufp = b; *bufp != NULL; bufp++)
467
el->el_vdisplay = NULL;
469
for (bufp = b; *bufp != NULL; bufp++)
476
/* terminal_move_to_line():
477
* move to line <where> (first line == 0)
478
* as efficiently as possible
481
terminal_move_to_line(EditLine *el, int where)
485
if (where == el->el_cursor.v)
488
if (where > el->el_terminal.t_size.v) {
490
(void) fprintf(el->el_errfile,
491
"terminal_move_to_line: where is ridiculous: %d\r\n",
493
#endif /* DEBUG_SCREEN */
496
if ((del = where - el->el_cursor.v) > 0) {
498
if (EL_HAS_AUTO_MARGINS &&
499
el->el_display[el->el_cursor.v][0] != '\0') {
501
(el->el_terminal.t_size.h - 1);
504
el->el_display[el->el_cursor.v][h] ==
509
/* move without newline */
510
terminal_move_to_char(el, (int)h);
511
terminal_overwrite(el, &el->el_display
512
[el->el_cursor.v][el->el_cursor.h],
513
(size_t)(el->el_terminal.t_size.h -
518
if ((del > 1) && GoodStr(T_DO)) {
519
terminal_tputs(el, tgoto(Str(T_DO), del,
523
for (; del > 0; del--)
524
terminal__putc(el, '\n');
525
/* because the \n will become \r\n */
530
} else { /* del < 0 */
531
if (GoodStr(T_UP) && (-del > 1 || !GoodStr(T_up)))
532
terminal_tputs(el, tgoto(Str(T_UP), -del, -del), -del);
535
for (; del < 0; del++)
536
terminal_tputs(el, Str(T_up), 1);
539
el->el_cursor.v = where;/* now where is here */
543
/* terminal_move_to_char():
544
* Move to the character position specified
547
terminal_move_to_char(EditLine *el, int where)
552
if (where == el->el_cursor.h)
555
if (where > el->el_terminal.t_size.h) {
557
(void) fprintf(el->el_errfile,
558
"terminal_move_to_char: where is riduculous: %d\r\n",
560
#endif /* DEBUG_SCREEN */
563
if (!where) { /* if where is first column */
564
terminal__putc(el, '\r'); /* do a CR */
568
del = where - el->el_cursor.h;
570
if ((del < -4 || del > 4) && GoodStr(T_ch))
571
/* go there directly */
572
terminal_tputs(el, tgoto(Str(T_ch), where, where), where);
574
if (del > 0) { /* moving forward */
575
if ((del > 4) && GoodStr(T_RI))
576
terminal_tputs(el, tgoto(Str(T_RI), del, del),
579
/* if I can do tabs, use them */
581
if ((el->el_cursor.h & 0370) !=
585
el->el_cursor.v][where & 0370] !=
589
/* if not within tab stop */
591
(el->el_cursor.h & 0370);
597
el->el_cursor.h = where & ~0x7;
601
* it's usually cheaper to just write the
605
* NOTE THAT terminal_overwrite() WILL CHANGE
608
terminal_overwrite(el, &el->el_display[
609
el->el_cursor.v][el->el_cursor.h],
610
(size_t)(where - el->el_cursor.h));
613
} else { /* del < 0 := moving backward */
614
if ((-del > 4) && GoodStr(T_LE))
615
terminal_tputs(el, tgoto(Str(T_LE), -del, -del),
617
else { /* can't go directly there */
619
* if the "cost" is greater than the "cost"
623
((unsigned int)-del >
624
(((unsigned int) where >> 3) +
627
terminal__putc(el, '\r');/* do a CR */
629
goto mc_again; /* and try again */
631
for (i = 0; i < -del; i++)
632
terminal__putc(el, '\b');
636
el->el_cursor.h = where; /* now where is here */
640
/* terminal_overwrite():
641
* Overstrike num characters
642
* Assumes MB_FILL_CHARs are present to keep the column count correct
645
terminal_overwrite(EditLine *el, const Char *cp, size_t n)
654
if (n > (size_t)el->el_terminal.t_size.h) {
656
(void) fprintf(el->el_errfile,
657
"terminal_overwrite: n is riduculous: %d\r\n", n);
658
#endif /* DEBUG_SCREEN */
664
width = wcwidth(*cp); /* Returns -1 for faux character. */
666
el->el_cursor.h += width;
670
/* terminal__putc() ignores any MB_FILL_CHARs */
671
terminal__putc(el, *cp++);
674
if (el->el_cursor.h >= el->el_terminal.t_size.h) { /* wrap? */
675
if (EL_HAS_AUTO_MARGINS) { /* yes */
678
if (EL_HAS_MAGIC_MARGINS) {
679
/* force the wrap to avoid the "magic"
682
if ((c = el->el_display[el->el_cursor.v]
683
[el->el_cursor.h]) != '\0') {
684
terminal_overwrite(el, &c, (size_t)1);
686
while (el->el_display[el->el_cursor.v]
687
[el->el_cursor.h] == MB_FILL_CHAR)
691
terminal__putc(el, ' ');
695
} else /* no wrap, but cursor stays on screen */
696
el->el_cursor.h = el->el_terminal.t_size.h - 1;
701
/* terminal_deletechars():
702
* Delete num characters
705
terminal_deletechars(EditLine *el, int num)
710
if (!EL_CAN_DELETE) {
712
(void) fprintf(el->el_errfile, " ERROR: cannot delete \n");
713
#endif /* DEBUG_EDIT */
716
if (num > el->el_terminal.t_size.h) {
718
(void) fprintf(el->el_errfile,
719
"terminal_deletechars: num is riduculous: %d\r\n", num);
720
#endif /* DEBUG_SCREEN */
723
if (GoodStr(T_DC)) /* if I have multiple delete */
724
if ((num > 1) || !GoodStr(T_dc)) { /* if dc would be more
726
terminal_tputs(el, tgoto(Str(T_DC), num, num), num);
729
if (GoodStr(T_dm)) /* if I have delete mode */
730
terminal_tputs(el, Str(T_dm), 1);
732
if (GoodStr(T_dc)) /* else do one at a time */
734
terminal_tputs(el, Str(T_dc), 1);
736
if (GoodStr(T_ed)) /* if I have delete mode */
737
terminal_tputs(el, Str(T_ed), 1);
741
/* terminal_insertwrite():
742
* Puts terminal in insert character mode or inserts num
743
* characters in the line
744
* Assumes MB_FILL_CHARs are present to keep column count correct
747
terminal_insertwrite(EditLine *el, Char *cp, int num)
751
if (!EL_CAN_INSERT) {
753
(void) fprintf(el->el_errfile, " ERROR: cannot insert \n");
754
#endif /* DEBUG_EDIT */
757
if (num > el->el_terminal.t_size.h) {
759
(void) fprintf(el->el_errfile,
760
"StartInsert: num is riduculous: %d\r\n", num);
761
#endif /* DEBUG_SCREEN */
764
if (GoodStr(T_IC)) /* if I have multiple insert */
765
if ((num > 1) || !GoodStr(T_ic)) {
766
/* if ic would be more expensive */
767
terminal_tputs(el, tgoto(Str(T_IC), num, num), num);
768
terminal_overwrite(el, cp, (size_t)num);
769
/* this updates el_cursor.h */
772
if (GoodStr(T_im) && GoodStr(T_ei)) { /* if I have insert mode */
773
terminal_tputs(el, Str(T_im), 1);
775
el->el_cursor.h += num;
777
terminal__putc(el, *cp++);
780
if (GoodStr(T_ip)) /* have to make num chars insert */
781
terminal_tputs(el, Str(T_ip), 1);
783
terminal_tputs(el, Str(T_ei), 1);
787
if (GoodStr(T_ic)) /* have to make num chars insert */
788
terminal_tputs(el, Str(T_ic), 1);
790
terminal__putc(el, *cp++);
794
if (GoodStr(T_ip)) /* have to make num chars insert */
795
terminal_tputs(el, Str(T_ip), 1);
796
/* pad the inserted char */
802
/* terminal_clear_EOL():
803
* clear to end of line. There are num characters to clear
806
terminal_clear_EOL(EditLine *el, int num)
810
if (EL_CAN_CEOL && GoodStr(T_ce))
811
terminal_tputs(el, Str(T_ce), 1);
813
for (i = 0; i < num; i++)
814
terminal__putc(el, ' ');
815
el->el_cursor.h += num; /* have written num spaces */
820
/* terminal_clear_screen():
824
terminal_clear_screen(EditLine *el)
825
{ /* clear the whole screen and home */
828
/* send the clear screen code */
829
terminal_tputs(el, Str(T_cl), Val(T_li));
830
else if (GoodStr(T_ho) && GoodStr(T_cd)) {
831
terminal_tputs(el, Str(T_ho), Val(T_li)); /* home */
832
/* clear to bottom of screen */
833
terminal_tputs(el, Str(T_cd), Val(T_li));
835
terminal__putc(el, '\r');
836
terminal__putc(el, '\n');
842
* Beep the way the terminal wants us
845
terminal_beep(EditLine *el)
848
/* what termcap says we should use */
849
terminal_tputs(el, Str(T_bl), 1);
851
terminal__putc(el, '\007'); /* an ASCII bell; ^G */
856
terminal_get(EditLine *el, const char **term)
858
*term = el->el_terminal.t_name;
863
* Read in the terminal capabilities from the requested terminal
866
terminal_set(EditLine *el, const char *term)
869
char buf[TC_BUFSIZE];
871
const struct termcapstr *t;
875
(void) sigemptyset(&nset);
876
(void) sigaddset(&nset, SIGWINCH);
877
(void) sigprocmask(SIG_BLOCK, &nset, &oset);
883
term = getenv("TERM");
885
if (!term || !term[0])
888
if (strcmp(term, "emacs") == 0)
889
el->el_flags |= EDIT_DISABLED;
891
memset(el->el_terminal.t_cap, 0, TC_BUFSIZE);
893
i = tgetent(el->el_terminal.t_cap, term);
897
(void) fprintf(el->el_errfile,
898
"Cannot read termcap database;\n");
900
(void) fprintf(el->el_errfile,
901
"No entry for terminal type \"%s\";\n", term);
902
(void) fprintf(el->el_errfile,
903
"using dumb terminal settings.\n");
904
Val(T_co) = 80; /* do a dumb terminal */
905
Val(T_pt) = Val(T_km) = Val(T_li) = 0;
906
Val(T_xt) = Val(T_MT);
907
for (t = tstr; t->name != NULL; t++)
908
terminal_alloc(el, t, NULL);
910
/* auto/magic margins */
911
Val(T_am) = tgetflag("am");
912
Val(T_xn) = tgetflag("xn");
914
Val(T_pt) = tgetflag("pt");
915
Val(T_xt) = tgetflag("xt");
916
/* do we have a meta? */
917
Val(T_km) = tgetflag("km");
918
Val(T_MT) = tgetflag("MT");
920
Val(T_co) = tgetnum("co");
921
Val(T_li) = tgetnum("li");
922
for (t = tstr; t->name != NULL; t++) {
923
/* XXX: some systems' tgetstr needs non const */
924
terminal_alloc(el, t, tgetstr(strchr(t->name, *t->name),
930
Val(T_co) = 80; /* just in case */
934
el->el_terminal.t_size.v = Val(T_co);
935
el->el_terminal.t_size.h = Val(T_li);
937
terminal_setflags(el);
939
/* get the correct window size */
940
(void) terminal_get_size(el, &lins, &cols);
941
if (terminal_change_size(el, lins, cols) == -1)
943
(void) sigprocmask(SIG_SETMASK, &oset, NULL);
944
terminal_bind_arrow(el);
945
el->el_terminal.t_name = term;
946
return i <= 0 ? -1 : 0;
950
/* terminal_get_size():
951
* Return the new window size in lines and cols, and
952
* true if the size was changed.
955
terminal_get_size(EditLine *el, int *lins, int *cols)
964
if (ioctl(el->el_infd, TIOCGWINSZ, &ws) != -1) {
975
if (ioctl(el->el_infd, TIOCGSIZE, &ts) != -1) {
983
return Val(T_co) != *cols || Val(T_li) != *lins;
987
/* terminal_change_size():
988
* Change the size of the terminal
991
terminal_change_size(EditLine *el, int lins, int cols)
996
Val(T_co) = (cols < 2) ? 80 : cols;
997
Val(T_li) = (lins < 1) ? 24 : lins;
999
/* re-make display buffers */
1000
if (terminal_rebuffer_display(el) == -1)
1002
re_clear_display(el);
1007
/* terminal_init_arrow():
1008
* Initialize the arrow key bindings from termcap
1011
terminal_init_arrow(EditLine *el)
1013
funckey_t *arrow = el->el_terminal.t_fkey;
1015
arrow[A_K_DN].name = STR("down");
1016
arrow[A_K_DN].key = T_kd;
1017
arrow[A_K_DN].fun.cmd = ED_NEXT_HISTORY;
1018
arrow[A_K_DN].type = XK_CMD;
1020
arrow[A_K_UP].name = STR("up");
1021
arrow[A_K_UP].key = T_ku;
1022
arrow[A_K_UP].fun.cmd = ED_PREV_HISTORY;
1023
arrow[A_K_UP].type = XK_CMD;
1025
arrow[A_K_LT].name = STR("left");
1026
arrow[A_K_LT].key = T_kl;
1027
arrow[A_K_LT].fun.cmd = ED_PREV_CHAR;
1028
arrow[A_K_LT].type = XK_CMD;
1030
arrow[A_K_RT].name = STR("right");
1031
arrow[A_K_RT].key = T_kr;
1032
arrow[A_K_RT].fun.cmd = ED_NEXT_CHAR;
1033
arrow[A_K_RT].type = XK_CMD;
1035
arrow[A_K_HO].name = STR("home");
1036
arrow[A_K_HO].key = T_kh;
1037
arrow[A_K_HO].fun.cmd = ED_MOVE_TO_BEG;
1038
arrow[A_K_HO].type = XK_CMD;
1040
arrow[A_K_EN].name = STR("end");
1041
arrow[A_K_EN].key = T_at7;
1042
arrow[A_K_EN].fun.cmd = ED_MOVE_TO_END;
1043
arrow[A_K_EN].type = XK_CMD;
1047
/* terminal_reset_arrow():
1048
* Reset arrow key bindings
1051
terminal_reset_arrow(EditLine *el)
1053
funckey_t *arrow = el->el_terminal.t_fkey;
1054
static const Char strA[] = {033, '[', 'A', '\0'};
1055
static const Char strB[] = {033, '[', 'B', '\0'};
1056
static const Char strC[] = {033, '[', 'C', '\0'};
1057
static const Char strD[] = {033, '[', 'D', '\0'};
1058
static const Char strH[] = {033, '[', 'H', '\0'};
1059
static const Char strF[] = {033, '[', 'F', '\0'};
1060
static const Char stOA[] = {033, 'O', 'A', '\0'};
1061
static const Char stOB[] = {033, 'O', 'B', '\0'};
1062
static const Char stOC[] = {033, 'O', 'C', '\0'};
1063
static const Char stOD[] = {033, 'O', 'D', '\0'};
1064
static const Char stOH[] = {033, 'O', 'H', '\0'};
1065
static const Char stOF[] = {033, 'O', 'F', '\0'};
1067
keymacro_add(el, strA, &arrow[A_K_UP].fun, arrow[A_K_UP].type);
1068
keymacro_add(el, strB, &arrow[A_K_DN].fun, arrow[A_K_DN].type);
1069
keymacro_add(el, strC, &arrow[A_K_RT].fun, arrow[A_K_RT].type);
1070
keymacro_add(el, strD, &arrow[A_K_LT].fun, arrow[A_K_LT].type);
1071
keymacro_add(el, strH, &arrow[A_K_HO].fun, arrow[A_K_HO].type);
1072
keymacro_add(el, strF, &arrow[A_K_EN].fun, arrow[A_K_EN].type);
1073
keymacro_add(el, stOA, &arrow[A_K_UP].fun, arrow[A_K_UP].type);
1074
keymacro_add(el, stOB, &arrow[A_K_DN].fun, arrow[A_K_DN].type);
1075
keymacro_add(el, stOC, &arrow[A_K_RT].fun, arrow[A_K_RT].type);
1076
keymacro_add(el, stOD, &arrow[A_K_LT].fun, arrow[A_K_LT].type);
1077
keymacro_add(el, stOH, &arrow[A_K_HO].fun, arrow[A_K_HO].type);
1078
keymacro_add(el, stOF, &arrow[A_K_EN].fun, arrow[A_K_EN].type);
1080
if (el->el_map.type != MAP_VI)
1082
keymacro_add(el, &strA[1], &arrow[A_K_UP].fun, arrow[A_K_UP].type);
1083
keymacro_add(el, &strB[1], &arrow[A_K_DN].fun, arrow[A_K_DN].type);
1084
keymacro_add(el, &strC[1], &arrow[A_K_RT].fun, arrow[A_K_RT].type);
1085
keymacro_add(el, &strD[1], &arrow[A_K_LT].fun, arrow[A_K_LT].type);
1086
keymacro_add(el, &strH[1], &arrow[A_K_HO].fun, arrow[A_K_HO].type);
1087
keymacro_add(el, &strF[1], &arrow[A_K_EN].fun, arrow[A_K_EN].type);
1088
keymacro_add(el, &stOA[1], &arrow[A_K_UP].fun, arrow[A_K_UP].type);
1089
keymacro_add(el, &stOB[1], &arrow[A_K_DN].fun, arrow[A_K_DN].type);
1090
keymacro_add(el, &stOC[1], &arrow[A_K_RT].fun, arrow[A_K_RT].type);
1091
keymacro_add(el, &stOD[1], &arrow[A_K_LT].fun, arrow[A_K_LT].type);
1092
keymacro_add(el, &stOH[1], &arrow[A_K_HO].fun, arrow[A_K_HO].type);
1093
keymacro_add(el, &stOF[1], &arrow[A_K_EN].fun, arrow[A_K_EN].type);
1097
/* terminal_set_arrow():
1098
* Set an arrow key binding
1101
terminal_set_arrow(EditLine *el, const Char *name, keymacro_value_t *fun,
1104
funckey_t *arrow = el->el_terminal.t_fkey;
1107
for (i = 0; i < A_K_NKEYS; i++)
1108
if (Strcmp(name, arrow[i].name) == 0) {
1109
arrow[i].fun = *fun;
1110
arrow[i].type = type;
1117
/* terminal_clear_arrow():
1118
* Clear an arrow key binding
1121
terminal_clear_arrow(EditLine *el, const Char *name)
1123
funckey_t *arrow = el->el_terminal.t_fkey;
1126
for (i = 0; i < A_K_NKEYS; i++)
1127
if (Strcmp(name, arrow[i].name) == 0) {
1128
arrow[i].type = XK_NOD;
1135
/* terminal_print_arrow():
1136
* Print the arrow key bindings
1139
terminal_print_arrow(EditLine *el, const Char *name)
1142
funckey_t *arrow = el->el_terminal.t_fkey;
1144
for (i = 0; i < A_K_NKEYS; i++)
1145
if (*name == '\0' || Strcmp(name, arrow[i].name) == 0)
1146
if (arrow[i].type != XK_NOD)
1147
keymacro_kprint(el, arrow[i].name,
1148
&arrow[i].fun, arrow[i].type);
1152
/* terminal_bind_arrow():
1153
* Bind the arrow keys
1156
terminal_bind_arrow(EditLine *el)
1159
const el_action_t *dmap;
1162
funckey_t *arrow = el->el_terminal.t_fkey;
1164
/* Check if the components needed are initialized */
1165
if (el->el_terminal.t_buf == NULL || el->el_map.key == NULL)
1168
map = el->el_map.type == MAP_VI ? el->el_map.alt : el->el_map.key;
1169
dmap = el->el_map.type == MAP_VI ? el->el_map.vic : el->el_map.emacs;
1171
terminal_reset_arrow(el);
1173
for (i = 0; i < A_K_NKEYS; i++) {
1174
Char wt_str[VISUAL_WIDTH_MAX];
1178
p = el->el_terminal.t_str[arrow[i].key];
1181
for (n = 0; n < VISUAL_WIDTH_MAX && p[n]; ++n)
1183
while (n < VISUAL_WIDTH_MAX)
1186
j = (unsigned char) *p;
1188
* Assign the arrow keys only if:
1190
* 1. They are multi-character arrow keys and the user
1191
* has not re-assigned the leading character, or
1192
* has re-assigned the leading character to be
1193
* ED_SEQUENCE_LEAD_IN
1194
* 2. They are single arrow keys pointing to an
1197
if (arrow[i].type == XK_NOD)
1198
keymacro_clear(el, map, px);
1200
if (p[1] && (dmap[j] == map[j] ||
1201
map[j] == ED_SEQUENCE_LEAD_IN)) {
1202
keymacro_add(el, px, &arrow[i].fun,
1204
map[j] = ED_SEQUENCE_LEAD_IN;
1205
} else if (map[j] == ED_UNASSIGNED) {
1206
keymacro_clear(el, map, px);
1207
if (arrow[i].type == XK_CMD)
1208
map[j] = arrow[i].fun.cmd;
1210
keymacro_add(el, px, &arrow[i].fun,
1221
terminal_putc(int c)
1223
if (terminal_outfile == NULL)
1225
return fputc(c, terminal_outfile);
1229
terminal_tputs(EditLine *el, const char *cap, int affcnt)
1232
pthread_mutex_lock(&terminal_mutex);
1234
terminal_outfile = el->el_outfile;
1235
(void)tputs(cap, affcnt, terminal_putc);
1237
pthread_mutex_unlock(&terminal_mutex);
1241
/* terminal__putc():
1245
terminal__putc(EditLine *el, Int c)
1247
char buf[MB_LEN_MAX +1];
1251
memset(&state, 0, sizeof(mbstate_t));
1252
if (c == (Int)MB_FILL_CHAR)
1254
i = ct_encode_char(buf, (size_t)MB_CUR_MAX, c, &state);
1258
return fputs(buf, el->el_outfile);
1261
/* terminal__flush():
1265
terminal__flush(EditLine *el)
1268
(void) fflush(el->el_outfile);
1271
/* terminal_writec():
1272
* Write the given character out, in a human readable form
1275
terminal_writec(EditLine *el, Int c)
1277
Char visbuf[VISUAL_WIDTH_MAX +1];
1278
ssize_t vcnt = ct_visual_char(visbuf, VISUAL_WIDTH_MAX, c);
1279
visbuf[vcnt] = '\0';
1280
terminal_overwrite(el, visbuf, (size_t)vcnt);
1281
terminal__flush(el);
1285
/* terminal_telltc():
1286
* Print the current termcap characteristics
1290
terminal_telltc(EditLine *el, int argc __attribute__((__unused__)),
1291
const Char **argv __attribute__((__unused__)))
1293
const struct termcapstr *t;
1296
(void) fprintf(el->el_outfile, "\n\tYour terminal has the\n");
1297
(void) fprintf(el->el_outfile, "\tfollowing characteristics:\n\n");
1298
(void) fprintf(el->el_outfile, "\tIt has %d columns and %d lines\n",
1299
Val(T_co), Val(T_li));
1300
(void) fprintf(el->el_outfile,
1301
"\tIt has %s meta key\n", EL_HAS_META ? "a" : "no");
1302
(void) fprintf(el->el_outfile,
1303
"\tIt can%suse tabs\n", EL_CAN_TAB ? " " : "not ");
1304
(void) fprintf(el->el_outfile, "\tIt %s automatic margins\n",
1305
EL_HAS_AUTO_MARGINS ? "has" : "does not have");
1306
if (EL_HAS_AUTO_MARGINS)
1307
(void) fprintf(el->el_outfile, "\tIt %s magic margins\n",
1308
EL_HAS_MAGIC_MARGINS ? "has" : "does not have");
1310
for (t = tstr, ts = el->el_terminal.t_str; t->name != NULL; t++, ts++) {
1313
ub = ct_encode_string(ct_visual_string(
1314
ct_decode_string(*ts, &el->el_scratch)),
1319
(void) fprintf(el->el_outfile, "\t%25s (%s) == %s\n",
1320
t->long_name, t->name, ub);
1322
(void) fputc('\n', el->el_outfile);
1327
/* terminal_settc():
1328
* Change the current terminal characteristics
1332
terminal_settc(EditLine *el, int argc __attribute__((__unused__)),
1335
const struct termcapstr *ts;
1336
const struct termcapval *tv;
1337
char what[8], how[8];
1339
if (argv == NULL || argv[1] == NULL || argv[2] == NULL)
1342
strncpy(what, ct_encode_string(argv[1], &el->el_scratch), sizeof(what));
1343
what[sizeof(what) - 1] = '\0';
1344
strncpy(how, ct_encode_string(argv[2], &el->el_scratch), sizeof(how));
1345
how[sizeof(how) - 1] = '\0';
1348
* Do the strings first
1350
for (ts = tstr; ts->name != NULL; ts++)
1351
if (strcmp(ts->name, what) == 0)
1354
if (ts->name != NULL) {
1355
terminal_alloc(el, ts, how);
1356
terminal_setflags(el);
1360
* Do the numeric ones second
1362
for (tv = tval; tv->name != NULL; tv++)
1363
if (strcmp(tv->name, what) == 0)
1366
if (tv->name != NULL)
1369
if (tv == &tval[T_pt] || tv == &tval[T_km] ||
1370
tv == &tval[T_am] || tv == &tval[T_xn]) {
1371
if (strcmp(how, "yes") == 0)
1372
el->el_terminal.t_val[tv - tval] = 1;
1373
else if (strcmp(how, "no") == 0)
1374
el->el_terminal.t_val[tv - tval] = 0;
1376
(void) fprintf(el->el_errfile,
1377
"" FSTR ": Bad value `%s'.\n", argv[0], how);
1380
terminal_setflags(el);
1381
if (terminal_change_size(el, Val(T_li), Val(T_co)) == -1)
1388
i = strtol(how, &ep, 10);
1390
(void) fprintf(el->el_errfile,
1391
"" FSTR ": Bad value `%s'.\n", argv[0], how);
1394
el->el_terminal.t_val[tv - tval] = (int) i;
1395
el->el_terminal.t_size.v = Val(T_co);
1396
el->el_terminal.t_size.h = Val(T_li);
1397
if (tv == &tval[T_co] || tv == &tval[T_li])
1398
if (terminal_change_size(el, Val(T_li), Val(T_co))
1406
/* terminal_gettc():
1407
* Get the current terminal characteristics
1411
terminal_gettc(EditLine *el, int argc __attribute__((__unused__)), char **argv)
1413
const struct termcapstr *ts;
1414
const struct termcapval *tv;
1418
if (argv == NULL || argv[1] == NULL || argv[2] == NULL)
1425
* Do the strings first
1427
for (ts = tstr; ts->name != NULL; ts++)
1428
if (strcmp(ts->name, what) == 0)
1431
if (ts->name != NULL) {
1432
*(char **)how = el->el_terminal.t_str[ts - tstr];
1436
* Do the numeric ones second
1438
for (tv = tval; tv->name != NULL; tv++)
1439
if (strcmp(tv->name, what) == 0)
1442
if (tv->name == NULL)
1445
if (tv == &tval[T_pt] || tv == &tval[T_km] ||
1446
tv == &tval[T_am] || tv == &tval[T_xn]) {
1447
static char yes[] = "yes";
1448
static char no[] = "no";
1449
if (el->el_terminal.t_val[tv - tval])
1450
*(char **)how = yes;
1455
*(int *)how = el->el_terminal.t_val[tv - tval];
1460
/* terminal_echotc():
1461
* Print the termcap string out with variable substitution
1465
terminal_echotc(EditLine *el, int argc __attribute__((__unused__)),
1470
int arg_need, arg_cols, arg_rows;
1471
int verbose = 0, silent = 0;
1473
static const char fmts[] = "%s\n", fmtd[] = "%d\n";
1474
const struct termcapstr *t;
1475
char buf[TC_BUFSIZE];
1480
if (argv == NULL || argv[1] == NULL)
1484
if (argv[0][0] == '-') {
1485
switch (argv[0][1]) {
1493
/* stderror(ERR_NAME | ERR_TCUSAGE); */
1498
if (!*argv || *argv[0] == '\0')
1500
if (Strcmp(*argv, STR("tabs")) == 0) {
1501
(void) fprintf(el->el_outfile, fmts, EL_CAN_TAB ? "yes" : "no");
1503
} else if (Strcmp(*argv, STR("meta")) == 0) {
1504
(void) fprintf(el->el_outfile, fmts, Val(T_km) ? "yes" : "no");
1506
} else if (Strcmp(*argv, STR("xn")) == 0) {
1507
(void) fprintf(el->el_outfile, fmts, EL_HAS_MAGIC_MARGINS ?
1510
} else if (Strcmp(*argv, STR("am")) == 0) {
1511
(void) fprintf(el->el_outfile, fmts, EL_HAS_AUTO_MARGINS ?
1514
} else if (Strcmp(*argv, STR("baud")) == 0) {
1515
(void) fprintf(el->el_outfile, fmtd, (int)el->el_tty.t_speed);
1517
} else if (Strcmp(*argv, STR("rows")) == 0 ||
1518
Strcmp(*argv, STR("lines")) == 0) {
1519
(void) fprintf(el->el_outfile, fmtd, Val(T_li));
1521
} else if (Strcmp(*argv, STR("cols")) == 0) {
1522
(void) fprintf(el->el_outfile, fmtd, Val(T_co));
1526
* Try to use our local definition first
1529
for (t = tstr; t->name != NULL; t++)
1531
ct_encode_string(*argv, &el->el_scratch)) == 0) {
1532
scap = el->el_terminal.t_str[t - tstr];
1535
if (t->name == NULL) {
1536
/* XXX: some systems' tgetstr needs non const */
1537
scap = tgetstr(ct_encode_string(*argv, &el->el_scratch), &area);
1539
if (!scap || scap[0] == '\0') {
1541
(void) fprintf(el->el_errfile,
1542
"echotc: Termcap parameter `" FSTR "' not found.\n",
1547
* Count home many values we need for this capability.
1549
for (cap = scap, arg_need = 0; *cap; cap++)
1569
* hpux has lot's of them...
1572
(void) fprintf(el->el_errfile,
1573
"echotc: Warning: unknown termcap %% `%c'.\n",
1575
/* This is bad, but I won't complain */
1582
if (*argv && *argv[0]) {
1584
(void) fprintf(el->el_errfile,
1585
"echotc: Warning: Extra argument `" FSTR "'.\n",
1589
terminal_tputs(el, scap, 1);
1593
if (!*argv || *argv[0] == '\0') {
1595
(void) fprintf(el->el_errfile,
1596
"echotc: Warning: Missing argument.\n");
1600
i = Strtol(*argv, &ep, 10);
1601
if (*ep != '\0' || i < 0) {
1603
(void) fprintf(el->el_errfile,
1604
"echotc: Bad value `" FSTR "' for rows.\n",
1610
if (*argv && *argv[0]) {
1612
(void) fprintf(el->el_errfile,
1613
"echotc: Warning: Extra argument `" FSTR
1617
terminal_tputs(el, tgoto(scap, arg_cols, arg_rows), 1);
1620
/* This is wrong, but I will ignore it... */
1622
(void) fprintf(el->el_errfile,
1623
"echotc: Warning: Too many required arguments (%d).\n",
1628
if (!*argv || *argv[0] == '\0') {
1630
(void) fprintf(el->el_errfile,
1631
"echotc: Warning: Missing argument.\n");
1634
i = Strtol(*argv, &ep, 10);
1635
if (*ep != '\0' || i < 0) {
1637
(void) fprintf(el->el_errfile,
1638
"echotc: Bad value `" FSTR "' for cols.\n",
1644
if (!*argv || *argv[0] == '\0') {
1646
(void) fprintf(el->el_errfile,
1647
"echotc: Warning: Missing argument.\n");
1650
i = Strtol(*argv, &ep, 10);
1651
if (*ep != '\0' || i < 0) {
1653
(void) fprintf(el->el_errfile,
1654
"echotc: Bad value `" FSTR "' for rows.\n",
1661
(void) fprintf(el->el_errfile,
1662
"echotc: Bad value `" FSTR "'.\n", *argv);
1666
if (*argv && *argv[0]) {
1668
(void) fprintf(el->el_errfile,
1669
"echotc: Warning: Extra argument `" FSTR
1673
terminal_tputs(el, tgoto(scap, arg_cols, arg_rows), arg_rows);