1 /****************************************************************************
2 * Copyright (c) 2008-2009,2010 Free Software Foundation, Inc. *
4 * Permission is hereby granted, free of charge, to any person obtaining a *
5 * copy of this software and associated documentation files (the *
6 * "Software"), to deal in the Software without restriction, including *
7 * without limitation the rights to use, copy, modify, merge, publish, *
8 * distribute, distribute with modifications, sublicense, and/or sell *
9 * copies of the Software, and to permit persons to whom the Software is *
10 * furnished to do so, subject to the following conditions: *
12 * The above copyright notice and this permission notice shall be included *
13 * in all copies or substantial portions of the Software. *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
23 * Except as contained in this notice, the name(s) of the above copyright *
24 * holders shall not be used in advertising or otherwise to promote the *
25 * sale, use or other dealings in this Software without prior written *
27 ****************************************************************************/
29 /****************************************************************************
30 * Author: Juergen Pfeifer *
32 ****************************************************************************/
34 #include <curses.priv.h>
35 #define CUR ((TERMINAL*)TCB)->type.
41 #include <sys/time.h> /* needed for MacOS X DP3 */
46 # if !defined(sun) || !TERMIOS
48 # include <sys/ioctl.h>
53 MODULE_ID("$Id: tinfo_driver.c,v 1.7 2010/01/16 16:56:16 tom Exp $")
56 * SCO defines TIOCGSIZE and the corresponding struct. Other systems (SunOS,
57 * Solaris, IRIX) define TIOCGWINSZ and struct winsize.
60 # define IOCTL_WINSIZE TIOCGSIZE
61 # define STRUCT_WINSIZE struct ttysize
62 # define WINSIZE_ROWS(n) (int)n.ts_lines
63 # define WINSIZE_COLS(n) (int)n.ts_cols
66 # define IOCTL_WINSIZE TIOCGWINSZ
67 # define STRUCT_WINSIZE struct winsize
68 # define WINSIZE_ROWS(n) (int)n.ws_row
69 # define WINSIZE_COLS(n) (int)n.ws_col
74 * These should be screen structure members. They need to be globals for
75 * historical reasons. So we assign them in start_color() and also in
76 * set_term()'s screen-switching logic.
80 NCURSES_PUBLIC_VAR(COLOR_PAIRS) (void)
82 return CURRENT_SCREEN ? CURRENT_SCREEN->_pair_count : -1;
85 NCURSES_PUBLIC_VAR(COLORS) (void)
87 return CURRENT_SCREEN ? CURRENT_SCREEN->_color_count : -1;
90 NCURSES_EXPORT_VAR(int) COLOR_PAIRS = 0;
91 NCURSES_EXPORT_VAR(int) COLORS = 0;
94 #define TCBMAGIC NCDRV_MAGIC(NCDRV_TINFO)
95 #define AssertTCB() assert(TCB!=0 && TCB->magic==TCBMAGIC)
96 #define SetSP() assert(TCB->csp!=0); sp = TCB->csp
99 * This routine needs to do all the work to make curscr look
103 drv_doupdate(TERMINAL_CONTROL_BLOCK * TCB)
106 return TINFO_DOUPDATE(TCB->csp);
109 #define ret_error(code, fmt, arg) if (errret) {\
113 fprintf(stderr, fmt, arg);\
117 #define ret_error0(code, msg) if (errret) {\
121 fprintf(stderr, msg);\
125 #if USE_DATABASE || USE_TERMCAP
127 * Return 1 if entry found, 0 if not found, -1 if database not accessible,
128 * just like tgetent().
131 grab_entry(const char *const tn, TERMTYPE *const tp)
133 char filename[PATH_MAX];
134 int status = _nc_read_entry(tn, filename, tp);
137 * If we have an entry, force all of the cancelled strings to null
138 * pointers so we don't have to test them in the rest of the library.
139 * (The terminfo compiler bypasses this logic, since it must know if
140 * a string is cancelled, for merging entries).
142 if (status == TGETENT_YES) {
144 for_each_boolean(n, tp) {
145 if (!VALID_BOOLEAN(tp->Booleans[n]))
146 tp->Booleans[n] = FALSE;
148 for_each_string(n, tp) {
149 if (tp->Strings[n] == CANCELLED_STRING)
150 tp->Strings[n] = ABSENT_STRING;
158 drv_CanHandle(TERMINAL_CONTROL_BLOCK * TCB, const char *tname, int *errret)
165 assert(TCB != 0 && tname != 0);
166 termp = (TERMINAL *) TCB;
168 TCB->magic = TCBMAGIC;
170 #if (USE_DATABASE || USE_TERMCAP)
171 status = grab_entry(tname, &termp->type);
176 /* try fallback list if entry on disk */
177 if (status != TGETENT_YES) {
178 const TERMTYPE *fallback = _nc_fallback(tname);
181 termp->type = *fallback;
182 status = TGETENT_YES;
186 if (status != TGETENT_YES) {
187 NCURSES_SP_NAME(del_curterm) (NCURSES_SP_ARGx termp);
188 if (status == TGETENT_ERR) {
189 ret_error0(status, "terminals database is inaccessible\n");
190 } else if (status == TGETENT_NO) {
191 ret_error(status, "'%s': unknown terminal type.\n", tname);
196 strncpy(ttytype, termp->type.term_names, NAMESIZE - 1);
197 ttytype[NAMESIZE - 1] = '\0';
200 if (command_character)
201 _nc_tinfo_cmdch(termp, *command_character);
204 ret_error(TGETENT_NO, "'%s': I need something more specific.\n", tname);
207 ret_error(TGETENT_YES, "'%s': I can't handle hardcopy terminals.\n", tname);
214 drv_dobeepflash(TERMINAL_CONTROL_BLOCK * TCB, bool beepFlag)
222 /* FIXME: should make sure that we are not in altchar mode */
225 res = NCURSES_SP_NAME(_nc_putp) (NCURSES_SP_ARGx "bell", bell);
226 NCURSES_SP_NAME(_nc_flush) (sp);
227 } else if (flash_screen) {
228 res = NCURSES_SP_NAME(_nc_putp) (NCURSES_SP_ARGx
231 NCURSES_SP_NAME(_nc_flush) (sp);
235 res = NCURSES_SP_NAME(_nc_putp) (NCURSES_SP_ARGx
238 NCURSES_SP_NAME(_nc_flush) (sp);
240 res = NCURSES_SP_NAME(_nc_putp) (NCURSES_SP_ARGx "bell", bell);
241 NCURSES_SP_NAME(_nc_flush) (sp);
248 * SVr4 curses is known to interchange color codes (1,4) and (3,6), possibly
249 * to maintain compatibility with a pre-ANSI scheme. The same scheme is
250 * also used in the FreeBSD syscons.
253 toggled_colors(int c)
256 static const int table[] =
257 {0, 4, 2, 6, 1, 5, 3, 7,
258 8, 12, 10, 14, 9, 13, 11, 15};
265 drv_print(TERMINAL_CONTROL_BLOCK * TCB, char *data, int len)
271 #if NCURSES_EXT_FUNCS
272 return NCURSES_SP_NAME(mcprint) (TCB->csp, data, len);
279 drv_defaultcolors(TERMINAL_CONTROL_BLOCK * TCB, int fg, int bg)
287 if (sp != 0 && orig_pair && orig_colors && (initialize_pair != 0)) {
288 #if NCURSES_EXT_FUNCS
289 sp->_default_color = isDefaultColor(fg) || isDefaultColor(bg);
290 sp->_has_sgr_39_49 = (NCURSES_SP_NAME(tigetflag) (NCURSES_SP_ARGx
293 sp->_default_fg = isDefaultColor(fg) ? COLOR_DEFAULT : (fg & C_MASK);
294 sp->_default_bg = isDefaultColor(bg) ? COLOR_DEFAULT : (bg & C_MASK);
295 if (sp->_color_pairs != 0) {
296 bool save = sp->_default_color;
297 sp->_default_color = TRUE;
298 NCURSES_SP_NAME(init_pair) (NCURSES_SP_ARGx
302 sp->_default_color = save;
311 drv_setcolor(TERMINAL_CONTROL_BLOCK * TCB,
314 NCURSES_SP_OUTC outc)
322 if (set_a_foreground) {
323 TPUTS_TRACE("set_a_foreground");
324 NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
325 TPARM_1(set_a_foreground, color), 1, outc);
327 TPUTS_TRACE("set_foreground");
328 NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
329 TPARM_1(set_foreground,
330 toggled_colors(color)), 1, outc);
333 if (set_a_background) {
334 TPUTS_TRACE("set_a_background");
335 NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
336 TPARM_1(set_a_background, color), 1, outc);
338 TPUTS_TRACE("set_background");
339 NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
340 TPARM_1(set_background,
341 toggled_colors(color)), 1, outc);
347 drv_rescol(TERMINAL_CONTROL_BLOCK * TCB)
355 if (orig_pair != 0) {
356 NCURSES_SP_NAME(_nc_putp) (NCURSES_SP_ARGx "orig_pair", orig_pair);
363 drv_rescolors(TERMINAL_CONTROL_BLOCK * TCB)
371 if (orig_colors != 0) {
372 NCURSES_SP_NAME(_nc_putp) (NCURSES_SP_ARGx "orig_colors", orig_colors);
379 drv_size(TERMINAL_CONTROL_BLOCK * TCB, int *linep, int *colp)
385 sp = TCB->csp; /* can be null here */
388 useEnv = sp->_use_env;
390 useEnv = _nc_prescreen.use_env;
392 /* figure out the size of the screen */
393 T(("screen size: terminfo lines = %d columns = %d", lines, columns));
396 *linep = (int) lines;
397 *colp = (int) columns;
398 } else { /* usually want to query LINES and COLUMNS from environment */
403 /* first, look for environment variables */
404 if ((value = _nc_getenv_num("LINES")) > 0) {
407 if ((value = _nc_getenv_num("COLUMNS")) > 0) {
410 T(("screen size: environment LINES = %d COLUMNS = %d", *linep, *colp));
413 if (*linep <= 0 || *colp <= 0) {
415 _scrsize(screendata);
416 *colp = screendata[0];
417 *linep = screendata[1];
418 T(("EMX screen size: environment LINES = %d COLUMNS = %d",
423 /* if that didn't work, maybe we can try asking the OS */
424 if (*linep <= 0 || *colp <= 0) {
425 TERMINAL *termp = (TERMINAL *) TCB;
426 if (isatty(termp->Filedes)) {
431 if (ioctl(termp->Filedes, IOCTL_WINSIZE, &size) < 0
438 * Solaris lets users override either dimension with an
439 * environment variable.
442 *linep = (sp != 0 && sp->_filtered) ? 1 : WINSIZE_ROWS(size);
444 *colp = WINSIZE_COLS(size);
449 #endif /* HAVE_SIZECHANGE */
451 /* if we can't get dynamic info about the size, use static */
453 *linep = (int) lines;
456 *colp = (int) columns;
459 /* the ultimate fallback, assume fixed 24x80 size */
468 * Put the derived values back in the screen-size caps, so
469 * tigetnum() and tgetnum() will do the right thing.
471 lines = (short) (*linep);
472 columns = (short) (*colp);
475 T(("screen size is %dx%d", *linep, *colp));
480 drv_getsize(TERMINAL_CONTROL_BLOCK * TCB, int *l, int *c)
483 assert(l != 0 && c != 0);
490 drv_setsize(TERMINAL_CONTROL_BLOCK * TCB, int l, int c)
499 drv_sgmode(TERMINAL_CONTROL_BLOCK * TCB, bool setFlag, TTY * buf)
501 SCREEN *sp = TCB->csp;
502 TERMINAL *_term = (TERMINAL *) TCB;
508 if (SET_TTY(_term->Filedes, buf) != 0) {
511 if (errno == ENOTTY) {
521 if (GET_TTY(_term->Filedes, buf) != 0) {
533 drv_mode(TERMINAL_CONTROL_BLOCK * TCB, bool progFlag, bool defFlag)
536 TERMINAL *_term = (TERMINAL *) TCB;
542 if (progFlag) /* prog mode */
547 * Turn off the XTABS bit in the tty structure if it was on.
549 if ((drv_sgmode(TCB, FALSE, &(_term->Nttyb)) == OK)) {
551 _term->Nttyb.c_oflag &= ~OFLAGS_TABS;
553 _term->Nttyb.sg_flags &= ~XTABS;
558 /* reset_prog_mode */
559 if (drv_sgmode(TCB, TRUE, &(_term->Nttyb)) == OK) {
562 _nc_keypad(sp, TRUE);
563 NC_BUFFERED(sp, TRUE);
568 } else { /* shell mode */
572 * If XTABS was on, remove the tab and backtab capabilities.
574 if (drv_sgmode(TCB, FALSE, &(_term->Ottyb)) == OK) {
576 if (_term->Ottyb.c_oflag & OFLAGS_TABS)
577 tab = back_tab = NULL;
579 if (_term->Ottyb.sg_flags & XTABS)
580 tab = back_tab = NULL;
585 /* reset_shell_mode */
587 _nc_keypad(sp, FALSE);
588 NCURSES_SP_NAME(_nc_flush) (sp);
589 NC_BUFFERED(sp, FALSE);
591 code = drv_sgmode(TCB, TRUE, &(_term->Ottyb));
602 NCURSES_SP_NAME(_nc_screen_wrap) (sp);
603 NCURSES_SP_NAME(_nc_mvcur_wrap) (sp); /* wrap up cursor addressing */
608 drv_release(TERMINAL_CONTROL_BLOCK * TCB GCC_UNUSED)
612 # define SGR0_TEST(mode) (mode != 0) && (exit_attribute_mode == 0 || strcmp(mode, exit_attribute_mode))
615 drv_screen_init(SCREEN *sp)
617 TERMINAL_CONTROL_BLOCK *TCB = TCBOf(sp);
622 * Check for mismatched graphic-rendition capabilities. Most SVr4
623 * terminfo trees contain entries that have rmul or rmso equated to
624 * sgr0 (Solaris curses copes with those entries). We do this only
625 * for curses, since many termcap applications assume that
626 * smso/rmso and smul/rmul are paired, and will not function
627 * properly if we remove rmso or rmul. Curses applications
628 * shouldn't be looking at this detail.
630 sp->_use_rmso = SGR0_TEST(exit_standout_mode);
631 sp->_use_rmul = SGR0_TEST(exit_underline_mode);
634 * Check whether we can optimize scrolling under dumb terminals in
635 * case we do not have any of these capabilities, scrolling
636 * optimization will be useless.
638 sp->_scrolling = ((scroll_forward && scroll_reverse) ||
646 NCURSES_SP_NAME(baudrate) (sp);
648 NCURSES_SP_NAME(_nc_mvcur_init) (sp);
649 /* initialize terminal to a sane state */
650 NCURSES_SP_NAME(_nc_screen_init) (sp);
654 drv_init(TERMINAL_CONTROL_BLOCK * TCB)
661 trm = (TERMINAL *) TCB;
664 TCB->info.initcolor = initialize_color;
665 TCB->info.canchange = can_change;
666 TCB->info.hascolor = ((VALID_NUMERIC(max_colors) && VALID_NUMERIC(max_pairs)
667 && (((set_foreground != NULL)
668 && (set_background != NULL))
669 || ((set_a_foreground != NULL)
670 && (set_a_background != NULL))
671 || set_color_pair)) ? TRUE : FALSE);
673 TCB->info.caninit = !(exit_ca_mode && non_rev_rmcup);
675 TCB->info.maxpairs = VALID_NUMERIC(max_pairs) ? max_pairs : 0;
676 TCB->info.maxcolors = VALID_NUMERIC(max_colors) ? max_colors : 0;
677 TCB->info.numlabels = VALID_NUMERIC(num_labels) ? num_labels : 0;
678 TCB->info.labelwidth = VALID_NUMERIC(label_width) ? label_width : 0;
679 TCB->info.labelheight = VALID_NUMERIC(label_height) ? label_height : 0;
680 TCB->info.nocolorvideo = VALID_NUMERIC(no_color_video) ? no_color_video
682 TCB->info.tabsize = VALID_NUMERIC(init_tabs) ? (int) init_tabs : 8;
684 TCB->info.defaultPalette = hue_lightness_saturation ? _nc_hls_palette : _nc_cga_palette;
687 * If an application calls setupterm() rather than initscr() or
688 * newterm(), we will not have the def_prog_mode() call in
689 * _nc_setupscreen(). Do it now anyway, so we can initialize the
692 if (isatty(trm->Filedes)) {
693 TCB->drv->mode(TCB, TRUE, TRUE);
697 #define MAX_PALETTE 8
698 #define InPalette(n) ((n) >= 0 && (n) < MAX_PALETTE)
701 drv_initpair(TERMINAL_CONTROL_BLOCK * TCB, short pair, short f, short b)
708 if ((initialize_pair != NULL) && InPalette(f) && InPalette(b)) {
709 const color_t *tp = InfoOf(sp).defaultPalette;
712 ("initializing pair: pair = %d, fg=(%d,%d,%d), bg=(%d,%d,%d)",
714 tp[f].red, tp[f].green, tp[f].blue,
715 tp[b].red, tp[b].green, tp[b].blue));
717 NCURSES_SP_NAME(_nc_putp) (NCURSES_SP_ARGx
719 TPARM_7(initialize_pair,
721 tp[f].red, tp[f].green, tp[f].blue,
722 tp[b].red, tp[b].green, tp[b].blue));
727 default_fg(SCREEN *sp)
729 #if NCURSES_EXT_FUNCS
730 return (sp != 0) ? sp->_default_fg : COLOR_WHITE;
737 default_bg(SCREEN *sp)
739 #if NCURSES_EXT_FUNCS
740 return sp != 0 ? sp->_default_bg : COLOR_BLACK;
747 drv_initcolor(TERMINAL_CONTROL_BLOCK * TCB,
748 short color, short r, short g, short b)
750 SCREEN *sp = TCB->csp;
753 if (initialize_color != NULL) {
754 NCURSES_SP_NAME(_nc_putp) (NCURSES_SP_ARGx
756 TPARM_4(initialize_color, color, r, g, b));
761 drv_do_color(TERMINAL_CONTROL_BLOCK * TCB,
765 NCURSES_SP_OUTC outc)
767 SCREEN *sp = TCB->csp;
768 NCURSES_COLOR_T fg = COLOR_DEFAULT;
769 NCURSES_COLOR_T bg = COLOR_DEFAULT;
770 NCURSES_COLOR_T old_fg, old_bg;
776 if (pair < 0 || pair >= COLOR_PAIRS) {
778 } else if (pair != 0) {
779 if (set_color_pair) {
780 TPUTS_TRACE("set_color_pair");
781 NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
782 TPARM_1(set_color_pair, pair), 1, outc);
784 } else if (sp != 0) {
785 NCURSES_SP_NAME(pair_content) (NCURSES_SP_ARGx
794 && NCURSES_SP_NAME(pair_content) (NCURSES_SP_ARGx
798 if ((isDefaultColor(fg) && !isDefaultColor(old_fg))
799 || (isDefaultColor(bg) && !isDefaultColor(old_bg))) {
800 #if NCURSES_EXT_FUNCS
802 * A minor optimization - but extension. If "AX" is specified in
803 * the terminal description, treat it as screen's indicator of ECMA
804 * SGR 39 and SGR 49, and assume the two sequences are independent.
806 if (sp->_has_sgr_39_49
807 && isDefaultColor(old_bg)
808 && !isDefaultColor(old_fg)) {
809 NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx "\033[39m", 1, outc);
810 } else if (sp->_has_sgr_39_49
811 && isDefaultColor(old_fg)
812 && !isDefaultColor(old_bg)) {
813 NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx "\033[49m", 1, outc);
824 #if NCURSES_EXT_FUNCS
825 if (isDefaultColor(fg))
826 fg = (NCURSES_COLOR_T) default_fg(sp);
827 if (isDefaultColor(bg))
828 bg = (NCURSES_COLOR_T) default_bg(sp);
832 NCURSES_COLOR_T xx = fg;
837 TR(TRACE_ATTRS, ("setting colors: pair = %d, fg = %d, bg = %d", pair,
840 if (!isDefaultColor(fg)) {
841 drv_setcolor(TCB, TRUE, fg, outc);
843 if (!isDefaultColor(bg)) {
844 drv_setcolor(TCB, FALSE, bg, outc);
848 #define xterm_kmous "\033[M"
850 init_xterm_mouse(SCREEN *sp)
852 sp->_mouse_type = M_XTERM;
853 sp->_mouse_xtermcap = NCURSES_SP_NAME(tigetstr) (NCURSES_SP_ARGx "XM");
854 if (!VALID_STRING(sp->_mouse_xtermcap))
855 sp->_mouse_xtermcap = "\033[?1000%?%p1%{1}%=%th%el%;";
859 drv_initmouse(TERMINAL_CONTROL_BLOCK * TCB)
866 /* we know how to recognize mouse events under "xterm" */
868 if (key_mouse != 0) {
869 if (!strcmp(key_mouse, xterm_kmous)
870 || strstr(TerminalOf(sp)->type.term_names, "xterm") != 0) {
871 init_xterm_mouse(sp);
873 } else if (strstr(TerminalOf(sp)->type.term_names, "xterm") != 0) {
874 if (_nc_add_to_try(&(sp->_keytry), xterm_kmous, KEY_MOUSE) == OK)
875 init_xterm_mouse(sp);
881 drv_mvcur(TERMINAL_CONTROL_BLOCK * TCB, int yold, int xold, int ynew, int xnew)
883 SCREEN *sp = TCB->csp;
885 return TINFO_MVCUR(sp, yold, xold, ynew, xnew);
889 drv_hwlabel(TERMINAL_CONTROL_BLOCK * TCB, int labnum, char *text)
891 SCREEN *sp = TCB->csp;
894 if (labnum > 0 && labnum <= num_labels) {
895 NCURSES_SP_NAME(_nc_putp) (NCURSES_SP_ARGx
897 TPARM_2(plab_norm, labnum, text));
902 drv_hwlabelOnOff(TERMINAL_CONTROL_BLOCK * TCB, bool OnFlag)
904 SCREEN *sp = TCB->csp;
908 NCURSES_SP_NAME(_nc_putp) (NCURSES_SP_ARGx "label_on", label_on);
910 NCURSES_SP_NAME(_nc_putp) (NCURSES_SP_ARGx "label_off", label_off);
915 drv_conattr(TERMINAL_CONTROL_BLOCK * TCB)
917 SCREEN *sp = TCB->csp;
918 chtype attrs = A_NORMAL;
921 if (enter_alt_charset_mode)
922 attrs |= A_ALTCHARSET;
924 if (enter_blink_mode)
933 if (enter_reverse_mode)
936 if (enter_standout_mode)
939 if (enter_protected_mode)
942 if (enter_secure_mode)
945 if (enter_underline_mode)
946 attrs |= A_UNDERLINE;
948 if (sp && sp->_coloron)
955 drv_setfilter(TERMINAL_CONTROL_BLOCK * TCB)
960 cursor_down = parm_down_cursor = 0;
962 cursor_up = parm_up_cursor = 0;
964 cursor_home = carriage_return;
968 drv_initacs(TERMINAL_CONTROL_BLOCK * TCB, chtype *real_map, chtype *fake_map)
970 SCREEN *sp = TCB->csp;
974 if (ena_acs != NULL) {
975 NCURSES_SP_NAME(_nc_putp) (NCURSES_SP_ARGx "ena_acs", ena_acs);
977 #if NCURSES_EXT_FUNCS
979 * Linux console "supports" the "PC ROM" character set by the coincidence
980 * that smpch/rmpch and smacs/rmacs have the same values. ncurses has
981 * no codepage support (see SCO Merge for an example). Outside of the
982 * values defined in acsc, there are no definitions for the "PC ROM"
983 * character set (assumed by some applications to be codepage 437), but we
984 * allow those applications to use those codepoints.
986 * test/blue.c uses this feature.
988 #define PCH_KLUDGE(a,b) (a != 0 && b != 0 && !strcmp(a,b))
989 if (PCH_KLUDGE(enter_pc_charset_mode, enter_alt_charset_mode) &&
990 PCH_KLUDGE(exit_pc_charset_mode, exit_alt_charset_mode)) {
992 for (i = 1; i < ACS_LEN; ++i) {
993 if (real_map[i] == 0) {
995 if (real_map != fake_map) {
997 sp->_screen_acs_map[i] = TRUE;
1004 if (acs_chars != NULL) {
1006 size_t length = strlen(acs_chars);
1008 while (i + 1 < length) {
1009 if (acs_chars[i] != 0 && UChar(acs_chars[i]) < ACS_LEN) {
1010 real_map[UChar(acs_chars[i])] = UChar(acs_chars[i + 1]) | A_ALTCHARSET;
1012 sp->_screen_acs_map[UChar(acs_chars[i])] = TRUE;
1018 /* Show the equivalent mapping, noting if it does not match the
1019 * given attribute, whether by re-ordering or duplication.
1021 if (USE_TRACEF(TRACE_CALLS)) {
1023 char show[ACS_LEN * 2 + 1];
1024 for (n = 1, m = 0; n < ACS_LEN; n++) {
1025 if (real_map[n] != 0) {
1026 show[m++] = (char) n;
1027 show[m++] = (char) ChCharOf(real_map[n]);
1031 if (acs_chars == NULL || strcmp(acs_chars, show))
1032 _tracef("%s acs_chars %s",
1033 (acs_chars == NULL) ? "NULL" : "READ",
1034 _nc_visbuf(acs_chars));
1035 _tracef("%s acs_chars %s",
1038 : (strcmp(acs_chars, show)
1043 _nc_unlock_global(tracef);
1048 #define ENSURE_TINFO(sp) (TCBOf(sp)->drv->isTerminfo)
1050 NCURSES_EXPORT(void)
1051 _nc_cookie_init(SCREEN *sp)
1053 bool support_cookies = USE_XMC_SUPPORT;
1054 TERMINAL_CONTROL_BLOCK *TCB = (TERMINAL_CONTROL_BLOCK *) (sp->_term);
1056 if (sp == 0 || !ENSURE_TINFO(sp))
1061 * If we have no magic-cookie support compiled-in, or if it is suppressed
1062 * in the environment, reset the support-flag.
1064 if (magic_cookie_glitch >= 0) {
1065 if (getenv("NCURSES_NO_MAGIC_COOKIE") != 0) {
1066 support_cookies = FALSE;
1071 if (!support_cookies && magic_cookie_glitch >= 0) {
1072 T(("will disable attributes to work w/o magic cookies"));
1075 if (magic_cookie_glitch > 0) { /* tvi, wyse */
1077 sp->_xmc_triggers = sp->_ok_attributes & (
1089 * We "should" treat colors as an attribute. The wyse350 (and its
1090 * clones) appear to be the only ones that have both colors and magic
1094 sp->_xmc_triggers |= A_COLOR;
1097 sp->_xmc_suppress = sp->_xmc_triggers & (chtype) ~(A_BOLD);
1099 T(("magic cookie attributes %s", _traceattr(sp->_xmc_suppress)));
1101 * Supporting line-drawing may be possible. But make the regular
1102 * video attributes work first.
1104 acs_chars = ABSENT_STRING;
1105 ena_acs = ABSENT_STRING;
1106 enter_alt_charset_mode = ABSENT_STRING;
1107 exit_alt_charset_mode = ABSENT_STRING;
1110 * To keep the cookie support simple, suppress all of the optimization
1111 * hooks except for clear_screen and the cursor addressing.
1113 if (support_cookies) {
1114 clr_eol = ABSENT_STRING;
1115 clr_eos = ABSENT_STRING;
1116 set_attributes = ABSENT_STRING;
1119 } else if (magic_cookie_glitch == 0) { /* hpterm */
1123 * If magic cookies are not supported, cancel the strings that set
1126 if (!support_cookies && magic_cookie_glitch >= 0) {
1127 magic_cookie_glitch = ABSENT_NUMERIC;
1128 set_attributes = ABSENT_STRING;
1129 enter_blink_mode = ABSENT_STRING;
1130 enter_bold_mode = ABSENT_STRING;
1131 enter_dim_mode = ABSENT_STRING;
1132 enter_reverse_mode = ABSENT_STRING;
1133 enter_standout_mode = ABSENT_STRING;
1134 enter_underline_mode = ABSENT_STRING;
1137 /* initialize normal acs before wide, since we use mapping in the latter */
1138 #if !USE_WIDEC_SUPPORT
1139 if (_nc_unicode_locale() && _nc_locale_breaks_acs(sp->_term)) {
1142 enter_alt_charset_mode = NULL;
1143 exit_alt_charset_mode = NULL;
1144 set_attributes = NULL;
1150 drv_twait(TERMINAL_CONTROL_BLOCK * TCB,
1154 EVENTLIST_2nd(_nc_eventlist * evl))
1161 return _nc_timed_wait(sp, mode, milliseconds, timeleft EVENTLIST_2nd(evl));
1165 drv_read(TERMINAL_CONTROL_BLOCK * TCB, int *buf)
1168 unsigned char c2 = 0;
1175 n = read(sp->_ifd, &c2, 1);
1181 drv_nap(TERMINAL_CONTROL_BLOCK * TCB GCC_UNUSED, int ms)
1185 struct timespec request, remaining;
1186 request.tv_sec = ms / 1000;
1187 request.tv_nsec = (ms % 1000) * 1000000;
1188 while (nanosleep(&request, &remaining) == -1
1189 && errno == EINTR) {
1190 request = remaining;
1194 _nc_timed_wait(0, 0, ms, (int *) 0 EVENTLIST_2nd(0));
1200 __nc_putp(SCREEN *sp, const char *name GCC_UNUSED, const char *value)
1205 rc = NCURSES_SP_NAME(_nc_putp) (NCURSES_SP_ARGx name, value);
1211 __nc_putp_flush(SCREEN *sp, const char *name, const char *value)
1213 int rc = __nc_putp(sp, name, value);
1215 NCURSES_SP_NAME(_nc_flush) (sp);
1221 drv_kpad(TERMINAL_CONTROL_BLOCK * TCB, bool flag)
1232 (void) __nc_putp_flush(sp, "keypad_xmit", keypad_xmit);
1233 } else if (!flag && keypad_local) {
1234 (void) __nc_putp_flush(sp, "keypad_local", keypad_local);
1236 if (flag && !sp->_tried) {
1237 _nc_init_keytry(sp);
1247 drv_keyok(TERMINAL_CONTROL_BLOCK * TCB, int c, bool flag)
1258 unsigned ch = (unsigned) c;
1260 while ((s = _nc_expand_try(sp->_key_ok, ch, &count, 0)) != 0
1261 && _nc_remove_key(&(sp->_key_ok), ch)) {
1262 code = _nc_add_to_try(&(sp->_keytry), s, ch);
1269 while ((s = _nc_expand_try(sp->_keytry, ch, &count, 0)) != 0
1270 && _nc_remove_key(&(sp->_keytry), ch)) {
1271 code = _nc_add_to_try(&(sp->_key_ok), s, ch);
1283 drv_kyExist(TERMINAL_CONTROL_BLOCK * TCB, int key)
1289 res = TINFO_HAS_KEY(TCB->csp, key) == 0 ? FALSE : TRUE;
1294 NCURSES_EXPORT_VAR (TERM_DRIVER) _nc_TINFO_DRIVER = {
1296 drv_CanHandle, /* CanHandle */
1297 drv_init, /* init */
1298 drv_release, /* release */
1299 drv_size, /* size */
1300 drv_sgmode, /* sgmode */
1301 drv_conattr, /* conattr */
1302 drv_mvcur, /* hwcur */
1303 drv_mode, /* mode */
1304 drv_rescol, /* rescol */
1305 drv_rescolors, /* rescolors */
1306 drv_setcolor, /* color */
1307 drv_dobeepflash, /* doBeepOrFlash */
1308 drv_initpair, /* initpair */
1309 drv_initcolor, /* initcolor */
1310 drv_do_color, /* docolor */
1311 drv_initmouse, /* initmouse */
1312 drv_setfilter, /* setfilter */
1313 drv_hwlabel, /* hwlabel */
1314 drv_hwlabelOnOff, /* hwlabelOnOff */
1315 drv_doupdate, /* update */
1316 drv_defaultcolors, /* defaultcolors */
1317 drv_print, /* print */
1318 drv_getsize, /* getsize */
1319 drv_setsize, /* setsize */
1320 drv_initacs, /* initacs */
1321 drv_screen_init, /* scinit */
1322 drv_wrap, /* scexit */
1323 drv_twait, /* twait */
1324 drv_read, /* read */
1326 drv_kpad, /* kpad */
1327 drv_keyok, /* kyOk */
1328 drv_kyExist /* kyExist */