1 /****************************************************************************
2 * Copyright (c) 2008-2013,2014 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 1.38 2014/04/26 18:47:20 juergen 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; (void) sp
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);
110 drv_Name(TERMINAL_CONTROL_BLOCK * TCB)
117 drv_CanHandle(TERMINAL_CONTROL_BLOCK * TCB, const char *tname, int *errret)
124 T((T_CALLED("tinfo::drv_CanHandle(%p)"), TCB));
126 assert(TCB != 0 && tname != 0);
127 termp = (TERMINAL *) TCB;
129 TCB->magic = TCBMAGIC;
131 #if (NCURSES_USE_DATABASE || NCURSES_USE_TERMCAP)
132 status = _nc_setup_tinfo(tname, &termp->type);
137 /* try fallback list if entry on disk */
138 if (status != TGETENT_YES) {
139 const TERMTYPE *fallback = _nc_fallback(tname);
142 termp->type = *fallback;
143 status = TGETENT_YES;
147 if (status != TGETENT_YES) {
148 NCURSES_SP_NAME(del_curterm) (NCURSES_SP_ARGx termp);
149 if (status == TGETENT_ERR) {
150 ret_error0(status, "terminals database is inaccessible\n");
151 } else if (status == TGETENT_NO) {
152 ret_error1(status, "unknown terminal type.\n", tname);
157 strncpy(ttytype, termp->type.term_names, (size_t) NAMESIZE - 1);
158 ttytype[NAMESIZE - 1] = '\0';
161 if (command_character)
162 _nc_tinfo_cmdch(termp, *command_character);
166 * BSD 4.3's termcap contains mis-typed "gn" for wy99. Do a sanity
167 * check before giving up.
169 if ((VALID_STRING(cursor_address)
170 || (VALID_STRING(cursor_down) && VALID_STRING(cursor_home)))
171 && VALID_STRING(clear_screen)) {
172 ret_error1(TGETENT_YES, "terminal is not really generic.\n", tname);
174 ret_error1(TGETENT_NO, "I need something more specific.\n", tname);
178 ret_error1(TGETENT_YES, "I can't handle hardcopy terminals.\n", tname);
185 drv_dobeepflash(TERMINAL_CONTROL_BLOCK * TCB, int beepFlag)
193 /* FIXME: should make sure that we are not in altchar mode */
196 res = NCURSES_PUTP2("bell", bell);
197 NCURSES_SP_NAME(_nc_flush) (sp);
198 } else if (flash_screen) {
199 res = NCURSES_PUTP2("flash_screen", flash_screen);
200 NCURSES_SP_NAME(_nc_flush) (sp);
204 res = NCURSES_PUTP2("flash_screen", flash_screen);
205 NCURSES_SP_NAME(_nc_flush) (sp);
207 res = NCURSES_PUTP2("bell", bell);
208 NCURSES_SP_NAME(_nc_flush) (sp);
215 * SVr4 curses is known to interchange color codes (1,4) and (3,6), possibly
216 * to maintain compatibility with a pre-ANSI scheme. The same scheme is
217 * also used in the FreeBSD syscons.
220 toggled_colors(int c)
223 static const int table[] =
224 {0, 4, 2, 6, 1, 5, 3, 7,
225 8, 12, 10, 14, 9, 13, 11, 15};
232 drv_print(TERMINAL_CONTROL_BLOCK * TCB, char *data, int len)
238 #if NCURSES_EXT_FUNCS
239 return NCURSES_SP_NAME(mcprint) (TCB->csp, data, len);
246 drv_defaultcolors(TERMINAL_CONTROL_BLOCK * TCB, int fg, int bg)
254 if (sp != 0 && orig_pair && orig_colors && (initialize_pair != 0)) {
255 #if NCURSES_EXT_FUNCS
256 sp->_default_color = isDefaultColor(fg) || isDefaultColor(bg);
257 sp->_has_sgr_39_49 = (NCURSES_SP_NAME(tigetflag) (NCURSES_SP_ARGx
260 sp->_default_fg = isDefaultColor(fg) ? COLOR_DEFAULT : (fg & C_MASK);
261 sp->_default_bg = isDefaultColor(bg) ? COLOR_DEFAULT : (bg & C_MASK);
262 if (sp->_color_pairs != 0) {
263 bool save = sp->_default_color;
264 sp->_default_color = TRUE;
265 NCURSES_SP_NAME(init_pair) (NCURSES_SP_ARGx
269 sp->_default_color = save;
278 drv_setcolor(TERMINAL_CONTROL_BLOCK * TCB,
281 NCURSES_SP_OUTC outc)
289 if (set_a_foreground) {
290 TPUTS_TRACE("set_a_foreground");
291 NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
292 TPARM_1(set_a_foreground, color), 1, outc);
294 TPUTS_TRACE("set_foreground");
295 NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
296 TPARM_1(set_foreground,
297 toggled_colors(color)), 1, outc);
300 if (set_a_background) {
301 TPUTS_TRACE("set_a_background");
302 NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
303 TPARM_1(set_a_background, color), 1, outc);
305 TPUTS_TRACE("set_background");
306 NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
307 TPARM_1(set_background,
308 toggled_colors(color)), 1, outc);
314 drv_rescol(TERMINAL_CONTROL_BLOCK * TCB)
322 if (orig_pair != 0) {
323 NCURSES_PUTP2("orig_pair", orig_pair);
330 drv_rescolors(TERMINAL_CONTROL_BLOCK * TCB)
338 if (orig_colors != 0) {
339 NCURSES_PUTP2("orig_colors", orig_colors);
346 drv_size(TERMINAL_CONTROL_BLOCK * TCB, int *linep, int *colp)
350 bool useTioctl = TRUE;
353 sp = TCB->csp; /* can be null here */
356 useEnv = sp->_use_env;
357 useTioctl = sp->_use_tioctl;
359 useEnv = _nc_prescreen.use_env;
360 useTioctl = _nc_prescreen.use_tioctl;
363 /* figure out the size of the screen */
364 T(("screen size: terminfo lines = %d columns = %d", lines, columns));
366 *linep = (int) lines;
367 *colp = (int) columns;
369 if (useEnv || useTioctl) {
375 _scrsize(screendata);
376 *colp = screendata[0];
377 *linep = ((sp != 0 && sp->_filtered)
380 T(("EMX screen size: environment LINES = %d COLUMNS = %d",
385 /* try asking the OS */
387 TERMINAL *termp = (TERMINAL *) TCB;
388 if (NC_ISATTY(termp->Filedes)) {
393 if (ioctl(termp->Filedes, IOCTL_WINSIZE, &size) >= 0) {
394 *linep = ((sp != 0 && sp->_filtered)
396 : WINSIZE_ROWS(size));
397 *colp = WINSIZE_COLS(size);
398 T(("SYS screen size: environment LINES = %d COLUMNS = %d",
406 #endif /* HAVE_SIZECHANGE */
411 * If environment variables are used, update them.
413 if ((sp == 0 || !sp->_filtered) && _nc_getenv_num("LINES") > 0) {
414 _nc_setenv_num("LINES", *linep);
416 if (_nc_getenv_num("COLUMNS") > 0) {
417 _nc_setenv_num("COLUMNS", *colp);
422 * Finally, look for environment variables.
424 * Solaris lets users override either dimension with an environment
427 if ((value = _nc_getenv_num("LINES")) > 0) {
429 T(("screen size: environment LINES = %d", *linep));
431 if ((value = _nc_getenv_num("COLUMNS")) > 0) {
433 T(("screen size: environment COLUMNS = %d", *colp));
437 /* if we can't get dynamic info about the size, use static */
439 *linep = (int) lines;
442 *colp = (int) columns;
445 /* the ultimate fallback, assume fixed 24x80 size */
454 * Put the derived values back in the screen-size caps, so
455 * tigetnum() and tgetnum() will do the right thing.
457 lines = (short) (*linep);
458 columns = (short) (*colp);
461 T(("screen size is %dx%d", *linep, *colp));
466 drv_getsize(TERMINAL_CONTROL_BLOCK * TCB, int *l, int *c)
469 assert(l != 0 && c != 0);
476 drv_setsize(TERMINAL_CONTROL_BLOCK * TCB, int l, int c)
485 drv_sgmode(TERMINAL_CONTROL_BLOCK * TCB, int setFlag, TTY * buf)
487 SCREEN *sp = TCB->csp;
488 TERMINAL *_term = (TERMINAL *) TCB;
494 if (SET_TTY(_term->Filedes, buf) != 0) {
497 if (errno == ENOTTY) {
507 if (GET_TTY(_term->Filedes, buf) != 0) {
519 drv_mode(TERMINAL_CONTROL_BLOCK * TCB, int progFlag, int defFlag)
522 TERMINAL *_term = (TERMINAL *) TCB;
528 if (progFlag) /* prog mode */
533 * Turn off the XTABS bit in the tty structure if it was on.
535 if ((drv_sgmode(TCB, FALSE, &(_term->Nttyb)) == OK)) {
537 _term->Nttyb.c_oflag &= (unsigned) ~OFLAGS_TABS;
539 _term->Nttyb.sg_flags &= (unsigned) ~XTABS;
544 /* reset_prog_mode */
545 if (drv_sgmode(TCB, TRUE, &(_term->Nttyb)) == OK) {
548 _nc_keypad(sp, TRUE);
553 } else { /* shell mode */
557 * If XTABS was on, remove the tab and backtab capabilities.
559 if (drv_sgmode(TCB, FALSE, &(_term->Ottyb)) == OK) {
561 if (_term->Ottyb.c_oflag & OFLAGS_TABS)
562 tab = back_tab = NULL;
564 if (_term->Ottyb.sg_flags & XTABS)
565 tab = back_tab = NULL;
570 /* reset_shell_mode */
572 _nc_keypad(sp, FALSE);
573 NCURSES_SP_NAME(_nc_flush) (sp);
575 code = drv_sgmode(TCB, TRUE, &(_term->Ottyb));
586 NCURSES_SP_NAME(_nc_screen_wrap) (sp);
587 NCURSES_SP_NAME(_nc_mvcur_wrap) (sp); /* wrap up cursor addressing */
592 drv_release(TERMINAL_CONTROL_BLOCK * TCB GCC_UNUSED)
596 # define SGR0_TEST(mode) (mode != 0) && (exit_attribute_mode == 0 || strcmp(mode, exit_attribute_mode))
599 drv_screen_init(SCREEN *sp)
601 TERMINAL_CONTROL_BLOCK *TCB = TCBOf(sp);
606 * Check for mismatched graphic-rendition capabilities. Most SVr4
607 * terminfo trees contain entries that have rmul or rmso equated to
608 * sgr0 (Solaris curses copes with those entries). We do this only
609 * for curses, since many termcap applications assume that
610 * smso/rmso and smul/rmul are paired, and will not function
611 * properly if we remove rmso or rmul. Curses applications
612 * shouldn't be looking at this detail.
614 sp->_use_rmso = SGR0_TEST(exit_standout_mode);
615 sp->_use_rmul = SGR0_TEST(exit_underline_mode);
618 * Check whether we can optimize scrolling under dumb terminals in
619 * case we do not have any of these capabilities, scrolling
620 * optimization will be useless.
622 sp->_scrolling = ((scroll_forward && scroll_reverse) ||
630 NCURSES_SP_NAME(baudrate) (sp);
632 NCURSES_SP_NAME(_nc_mvcur_init) (sp);
633 /* initialize terminal to a sane state */
634 NCURSES_SP_NAME(_nc_screen_init) (sp);
638 drv_init(TERMINAL_CONTROL_BLOCK * TCB)
644 trm = (TERMINAL *) TCB;
646 TCB->info.initcolor = VALID_STRING(initialize_color);
647 TCB->info.canchange = can_change;
648 TCB->info.hascolor = ((VALID_NUMERIC(max_colors) && VALID_NUMERIC(max_pairs)
649 && (((set_foreground != NULL)
650 && (set_background != NULL))
651 || ((set_a_foreground != NULL)
652 && (set_a_background != NULL))
653 || set_color_pair)) ? TRUE : FALSE);
655 TCB->info.caninit = !(exit_ca_mode && non_rev_rmcup);
657 TCB->info.maxpairs = VALID_NUMERIC(max_pairs) ? max_pairs : 0;
658 TCB->info.maxcolors = VALID_NUMERIC(max_colors) ? max_colors : 0;
659 TCB->info.numlabels = VALID_NUMERIC(num_labels) ? num_labels : 0;
660 TCB->info.labelwidth = VALID_NUMERIC(label_width) ? label_width : 0;
661 TCB->info.labelheight = VALID_NUMERIC(label_height) ? label_height : 0;
662 TCB->info.nocolorvideo = VALID_NUMERIC(no_color_video) ? no_color_video
664 TCB->info.tabsize = VALID_NUMERIC(init_tabs) ? (int) init_tabs : 8;
666 TCB->info.defaultPalette = hue_lightness_saturation ? _nc_hls_palette : _nc_cga_palette;
669 * If an application calls setupterm() rather than initscr() or
670 * newterm(), we will not have the def_prog_mode() call in
671 * _nc_setupscreen(). Do it now anyway, so we can initialize the
674 if (NC_ISATTY(trm->Filedes)) {
675 TCB->drv->td_mode(TCB, TRUE, TRUE);
679 #define MAX_PALETTE 8
680 #define InPalette(n) ((n) >= 0 && (n) < MAX_PALETTE)
683 drv_initpair(TERMINAL_CONTROL_BLOCK * TCB, int pair, int f, int b)
690 if ((initialize_pair != NULL) && InPalette(f) && InPalette(b)) {
691 const color_t *tp = InfoOf(sp).defaultPalette;
694 ("initializing pair: pair = %d, fg=(%d,%d,%d), bg=(%d,%d,%d)",
696 tp[f].red, tp[f].green, tp[f].blue,
697 tp[b].red, tp[b].green, tp[b].blue));
699 NCURSES_PUTP2("initialize_pair",
700 TPARM_7(initialize_pair,
702 tp[f].red, tp[f].green, tp[f].blue,
703 tp[b].red, tp[b].green, tp[b].blue));
708 default_fg(SCREEN *sp)
710 #if NCURSES_EXT_FUNCS
711 return (sp != 0) ? sp->_default_fg : COLOR_WHITE;
718 default_bg(SCREEN *sp)
720 #if NCURSES_EXT_FUNCS
721 return sp != 0 ? sp->_default_bg : COLOR_BLACK;
728 drv_initcolor(TERMINAL_CONTROL_BLOCK * TCB,
729 int color, int r, int g, int b)
731 SCREEN *sp = TCB->csp;
734 if (initialize_color != NULL) {
735 NCURSES_PUTP2("initialize_color",
736 TPARM_4(initialize_color, color, r, g, b));
741 drv_do_color(TERMINAL_CONTROL_BLOCK * TCB,
745 NCURSES_SP_OUTC outc)
747 SCREEN *sp = TCB->csp;
748 NCURSES_COLOR_T fg = COLOR_DEFAULT;
749 NCURSES_COLOR_T bg = COLOR_DEFAULT;
750 NCURSES_COLOR_T old_fg, old_bg;
756 if (pair < 0 || pair >= COLOR_PAIRS) {
758 } else if (pair != 0) {
759 if (set_color_pair) {
760 TPUTS_TRACE("set_color_pair");
761 NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx
762 TPARM_1(set_color_pair, pair), 1, outc);
764 } else if (sp != 0) {
765 NCURSES_SP_NAME(pair_content) (NCURSES_SP_ARGx
774 && NCURSES_SP_NAME(pair_content) (NCURSES_SP_ARGx
778 if ((isDefaultColor(fg) && !isDefaultColor(old_fg))
779 || (isDefaultColor(bg) && !isDefaultColor(old_bg))) {
780 #if NCURSES_EXT_FUNCS
782 * A minor optimization - but extension. If "AX" is specified in
783 * the terminal description, treat it as screen's indicator of ECMA
784 * SGR 39 and SGR 49, and assume the two sequences are independent.
786 if (sp->_has_sgr_39_49
787 && isDefaultColor(old_bg)
788 && !isDefaultColor(old_fg)) {
789 NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx "\033[39m", 1, outc);
790 } else if (sp->_has_sgr_39_49
791 && isDefaultColor(old_fg)
792 && !isDefaultColor(old_bg)) {
793 NCURSES_SP_NAME(tputs) (NCURSES_SP_ARGx "\033[49m", 1, outc);
804 #if NCURSES_EXT_FUNCS
805 if (isDefaultColor(fg))
806 fg = (NCURSES_COLOR_T) default_fg(sp);
807 if (isDefaultColor(bg))
808 bg = (NCURSES_COLOR_T) default_bg(sp);
812 NCURSES_COLOR_T xx = fg;
817 TR(TRACE_ATTRS, ("setting colors: pair = %d, fg = %d, bg = %d", pair,
820 if (!isDefaultColor(fg)) {
821 drv_setcolor(TCB, TRUE, fg, outc);
823 if (!isDefaultColor(bg)) {
824 drv_setcolor(TCB, FALSE, bg, outc);
828 #define xterm_kmous "\033[M"
830 init_xterm_mouse(SCREEN *sp)
832 sp->_mouse_type = M_XTERM;
833 sp->_mouse_xtermcap = NCURSES_SP_NAME(tigetstr) (NCURSES_SP_ARGx "XM");
834 if (!VALID_STRING(sp->_mouse_xtermcap))
835 sp->_mouse_xtermcap = "\033[?1000%?%p1%{1}%=%th%el%;";
839 drv_initmouse(TERMINAL_CONTROL_BLOCK * TCB)
846 /* we know how to recognize mouse events under "xterm" */
848 if (key_mouse != 0) {
849 if (!strcmp(key_mouse, xterm_kmous)
850 || strstr(TerminalOf(sp)->type.term_names, "xterm") != 0) {
851 init_xterm_mouse(sp);
853 } else if (strstr(TerminalOf(sp)->type.term_names, "xterm") != 0) {
854 if (_nc_add_to_try(&(sp->_keytry), xterm_kmous, KEY_MOUSE) == OK)
855 init_xterm_mouse(sp);
861 drv_testmouse(TERMINAL_CONTROL_BLOCK * TCB,
863 EVENTLIST_2nd(_nc_eventlist * evl))
872 if ((sp->_mouse_type == M_SYSMOUSE)
873 && (sp->_sysmouse_head < sp->_sysmouse_tail)) {
878 rc = TCBOf(sp)->drv->td_twait(TCBOf(sp),
884 if ((sp->_mouse_type == M_SYSMOUSE)
885 && (sp->_sysmouse_head < sp->_sysmouse_tail)
887 && (errno == EINTR)) {
896 drv_mvcur(TERMINAL_CONTROL_BLOCK * TCB, int yold, int xold, int ynew, int xnew)
898 SCREEN *sp = TCB->csp;
900 return NCURSES_SP_NAME(_nc_mvcur) (sp, yold, xold, ynew, xnew);
904 drv_hwlabel(TERMINAL_CONTROL_BLOCK * TCB, int labnum, char *text)
906 SCREEN *sp = TCB->csp;
909 if (labnum > 0 && labnum <= num_labels) {
910 NCURSES_PUTP2("plab_norm",
911 TPARM_2(plab_norm, labnum, text));
916 drv_hwlabelOnOff(TERMINAL_CONTROL_BLOCK * TCB, int OnFlag)
918 SCREEN *sp = TCB->csp;
922 NCURSES_PUTP2("label_on", label_on);
924 NCURSES_PUTP2("label_off", label_off);
929 drv_conattr(TERMINAL_CONTROL_BLOCK * TCB)
931 SCREEN *sp = TCB->csp;
932 chtype attrs = A_NORMAL;
935 if (enter_alt_charset_mode)
936 attrs |= A_ALTCHARSET;
938 if (enter_blink_mode)
947 if (enter_reverse_mode)
950 if (enter_standout_mode)
953 if (enter_protected_mode)
956 if (enter_secure_mode)
959 if (enter_underline_mode)
960 attrs |= A_UNDERLINE;
962 if (sp && sp->_coloron)
966 if (enter_italics_mode)
974 drv_setfilter(TERMINAL_CONTROL_BLOCK * TCB)
979 cursor_down = parm_down_cursor = 0;
981 cursor_up = parm_up_cursor = 0;
983 cursor_home = carriage_return;
987 drv_initacs(TERMINAL_CONTROL_BLOCK * TCB, chtype *real_map, chtype *fake_map)
989 SCREEN *sp = TCB->csp;
993 if (ena_acs != NULL) {
994 NCURSES_PUTP2("ena_acs", ena_acs);
996 #if NCURSES_EXT_FUNCS
998 * Linux console "supports" the "PC ROM" character set by the coincidence
999 * that smpch/rmpch and smacs/rmacs have the same values. ncurses has
1000 * no codepage support (see SCO Merge for an example). Outside of the
1001 * values defined in acsc, there are no definitions for the "PC ROM"
1002 * character set (assumed by some applications to be codepage 437), but we
1003 * allow those applications to use those codepoints.
1005 * test/blue.c uses this feature.
1007 #define PCH_KLUDGE(a,b) (a != 0 && b != 0 && !strcmp(a,b))
1008 if (PCH_KLUDGE(enter_pc_charset_mode, enter_alt_charset_mode) &&
1009 PCH_KLUDGE(exit_pc_charset_mode, exit_alt_charset_mode)) {
1011 for (i = 1; i < ACS_LEN; ++i) {
1012 if (real_map[i] == 0) {
1013 real_map[i] = (chtype) i;
1014 if (real_map != fake_map) {
1016 sp->_screen_acs_map[i] = TRUE;
1023 if (acs_chars != NULL) {
1025 size_t length = strlen(acs_chars);
1027 while (i + 1 < length) {
1028 if (acs_chars[i] != 0 && UChar(acs_chars[i]) < ACS_LEN) {
1029 real_map[UChar(acs_chars[i])] = UChar(acs_chars[i + 1]) | A_ALTCHARSET;
1031 sp->_screen_acs_map[UChar(acs_chars[i])] = TRUE;
1037 /* Show the equivalent mapping, noting if it does not match the
1038 * given attribute, whether by re-ordering or duplication.
1040 if (USE_TRACEF(TRACE_CALLS)) {
1042 char show[ACS_LEN * 2 + 1];
1043 for (n = 1, m = 0; n < ACS_LEN; n++) {
1044 if (real_map[n] != 0) {
1045 show[m++] = (char) n;
1046 show[m++] = (char) ChCharOf(real_map[n]);
1050 if (acs_chars == NULL || strcmp(acs_chars, show))
1051 _tracef("%s acs_chars %s",
1052 (acs_chars == NULL) ? "NULL" : "READ",
1053 _nc_visbuf(acs_chars));
1054 _tracef("%s acs_chars %s",
1057 : (strcmp(acs_chars, show)
1062 _nc_unlock_global(tracef);
1067 #define ENSURE_TINFO(sp) (TCBOf(sp)->drv->isTerminfo)
1069 NCURSES_EXPORT(void)
1070 _nc_cookie_init(SCREEN *sp)
1072 bool support_cookies = USE_XMC_SUPPORT;
1073 TERMINAL_CONTROL_BLOCK *TCB = (TERMINAL_CONTROL_BLOCK *) (sp->_term);
1075 if (sp == 0 || !ENSURE_TINFO(sp))
1080 * If we have no magic-cookie support compiled-in, or if it is suppressed
1081 * in the environment, reset the support-flag.
1083 if (magic_cookie_glitch >= 0) {
1084 if (getenv("NCURSES_NO_MAGIC_COOKIE") != 0) {
1085 support_cookies = FALSE;
1090 if (!support_cookies && magic_cookie_glitch >= 0) {
1091 T(("will disable attributes to work w/o magic cookies"));
1094 if (magic_cookie_glitch > 0) { /* tvi, wyse */
1096 sp->_xmc_triggers = sp->_ok_attributes & XMC_CONFLICT;
1099 * We "should" treat colors as an attribute. The wyse350 (and its
1100 * clones) appear to be the only ones that have both colors and magic
1104 sp->_xmc_triggers |= A_COLOR;
1107 sp->_xmc_suppress = sp->_xmc_triggers & (chtype) ~(A_BOLD);
1109 T(("magic cookie attributes %s", _traceattr(sp->_xmc_suppress)));
1111 * Supporting line-drawing may be possible. But make the regular
1112 * video attributes work first.
1114 acs_chars = ABSENT_STRING;
1115 ena_acs = ABSENT_STRING;
1116 enter_alt_charset_mode = ABSENT_STRING;
1117 exit_alt_charset_mode = ABSENT_STRING;
1120 * To keep the cookie support simple, suppress all of the optimization
1121 * hooks except for clear_screen and the cursor addressing.
1123 if (support_cookies) {
1124 clr_eol = ABSENT_STRING;
1125 clr_eos = ABSENT_STRING;
1126 set_attributes = ABSENT_STRING;
1129 } else if (magic_cookie_glitch == 0) { /* hpterm */
1133 * If magic cookies are not supported, cancel the strings that set
1136 if (!support_cookies && magic_cookie_glitch >= 0) {
1137 magic_cookie_glitch = ABSENT_NUMERIC;
1138 set_attributes = ABSENT_STRING;
1139 enter_blink_mode = ABSENT_STRING;
1140 enter_bold_mode = ABSENT_STRING;
1141 enter_dim_mode = ABSENT_STRING;
1142 enter_reverse_mode = ABSENT_STRING;
1143 enter_standout_mode = ABSENT_STRING;
1144 enter_underline_mode = ABSENT_STRING;
1147 /* initialize normal acs before wide, since we use mapping in the latter */
1148 #if !USE_WIDEC_SUPPORT
1149 if (_nc_unicode_locale() && _nc_locale_breaks_acs(sp->_term)) {
1152 enter_alt_charset_mode = NULL;
1153 exit_alt_charset_mode = NULL;
1154 set_attributes = NULL;
1160 drv_twait(TERMINAL_CONTROL_BLOCK * TCB,
1164 EVENTLIST_2nd(_nc_eventlist * evl))
1171 return _nc_timed_wait(sp, mode, milliseconds, timeleft EVENTLIST_2nd(evl));
1175 drv_read(TERMINAL_CONTROL_BLOCK * TCB, int *buf)
1178 unsigned char c2 = 0;
1185 # if USE_PTHREADS_EINTR
1186 if ((pthread_self) && (pthread_kill) && (pthread_equal))
1187 _nc_globals.read_thread = pthread_self();
1189 n = read(sp->_ifd, &c2, (size_t) 1);
1190 #if USE_PTHREADS_EINTR
1191 _nc_globals.read_thread = 0;
1198 drv_nap(TERMINAL_CONTROL_BLOCK * TCB GCC_UNUSED, int ms)
1202 struct timespec request, remaining;
1203 request.tv_sec = ms / 1000;
1204 request.tv_nsec = (ms % 1000) * 1000000;
1205 while (nanosleep(&request, &remaining) == -1
1206 && errno == EINTR) {
1207 request = remaining;
1211 _nc_timed_wait(0, 0, ms, (int *) 0 EVENTLIST_2nd(0));
1217 __nc_putp(SCREEN *sp, const char *name GCC_UNUSED, const char *value)
1222 rc = NCURSES_PUTP2(name, value);
1228 __nc_putp_flush(SCREEN *sp, const char *name, const char *value)
1230 int rc = __nc_putp(sp, name, value);
1232 NCURSES_SP_NAME(_nc_flush) (sp);
1238 drv_kpad(TERMINAL_CONTROL_BLOCK * TCB, int flag)
1249 (void) __nc_putp_flush(sp, "keypad_xmit", keypad_xmit);
1250 } else if (!flag && keypad_local) {
1251 (void) __nc_putp_flush(sp, "keypad_local", keypad_local);
1253 if (flag && !sp->_tried) {
1254 _nc_init_keytry(sp);
1264 drv_keyok(TERMINAL_CONTROL_BLOCK * TCB, int c, int flag)
1275 unsigned ch = (unsigned) c;
1277 while ((s = _nc_expand_try(sp->_key_ok,
1278 ch, &count, (size_t) 0)) != 0
1279 && _nc_remove_key(&(sp->_key_ok), ch)) {
1280 code = _nc_add_to_try(&(sp->_keytry), s, ch);
1287 while ((s = _nc_expand_try(sp->_keytry,
1288 ch, &count, (size_t) 0)) != 0
1289 && _nc_remove_key(&(sp->_keytry), ch)) {
1290 code = _nc_add_to_try(&(sp->_key_ok), s, ch);
1302 drv_kyExist(TERMINAL_CONTROL_BLOCK * TCB, int key)
1308 res = TINFO_HAS_KEY(TCB->csp, key) == 0 ? FALSE : TRUE;
1313 NCURSES_EXPORT_VAR (TERM_DRIVER) _nc_TINFO_DRIVER = {
1315 drv_Name, /* Name */
1316 drv_CanHandle, /* CanHandle */
1317 drv_init, /* init */
1318 drv_release, /* release */
1319 drv_size, /* size */
1320 drv_sgmode, /* sgmode */
1321 drv_conattr, /* conattr */
1322 drv_mvcur, /* hwcur */
1323 drv_mode, /* mode */
1324 drv_rescol, /* rescol */
1325 drv_rescolors, /* rescolors */
1326 drv_setcolor, /* color */
1327 drv_dobeepflash, /* doBeepOrFlash */
1328 drv_initpair, /* initpair */
1329 drv_initcolor, /* initcolor */
1330 drv_do_color, /* docolor */
1331 drv_initmouse, /* initmouse */
1332 drv_testmouse, /* testmouse */
1333 drv_setfilter, /* setfilter */
1334 drv_hwlabel, /* hwlabel */
1335 drv_hwlabelOnOff, /* hwlabelOnOff */
1336 drv_doupdate, /* update */
1337 drv_defaultcolors, /* defaultcolors */
1338 drv_print, /* print */
1339 drv_getsize, /* getsize */
1340 drv_setsize, /* setsize */
1341 drv_initacs, /* initacs */
1342 drv_screen_init, /* scinit */
1343 drv_wrap, /* scexit */
1344 drv_twait, /* twait */
1345 drv_read, /* read */
1347 drv_kpad, /* kpad */
1348 drv_keyok, /* kyOk */
1349 drv_kyExist /* kyExist */