3 #include "terminfo-core.h"
5 #ifndef _POSIX_VDISABLE
6 # define _POSIX_VDISABLE 0
9 #define tput(s) tputs(s, 0, term_putchar)
10 inline static int term_putchar(int c)
12 return fputc(c, current_term->out);
15 /* Don't bother including curses.h because of these -
16 they might not even be defined there */
25 #define term_getstr(x, buffer) tigetstr(x.ti_name)
26 #define term_getnum(x) tigetnum(x.ti_name);
27 #define term_getflag(x) tigetflag(x.ti_name);
33 #define term_getstr(x, buffer) tgetstr(x.tc_name, &buffer)
34 #define term_getnum(x) tgetnum(x.tc_name)
35 #define term_getflag(x) tgetflag(x.tc_name)
38 #define CAP_TYPE_FLAG 0
39 #define CAP_TYPE_INT 1
40 #define CAP_TYPE_STR 2
43 const char *ti_name; /* terminfo name */
44 const char *tc_name; /* termcap name */
49 TERM_REC *current_term;
50 static TERM_REC temp_term; /* not really used for anything */
52 /* Define only what we might need */
53 static TERMINFO_REC tcaps[] = {
55 { "cols", "co", CAP_TYPE_INT, &temp_term.width },
56 { "lines", "li", CAP_TYPE_INT, &temp_term.height },
59 { "smcup", "ti", CAP_TYPE_STR, &temp_term.TI_smcup },
60 { "rmcup", "te", CAP_TYPE_STR, &temp_term.TI_rmcup },
61 { "cup", "cm", CAP_TYPE_STR, &temp_term.TI_cup },
62 { "hpa", "ch", CAP_TYPE_STR, &temp_term.TI_hpa },
63 { "vpa", "vh", CAP_TYPE_STR, &temp_term.TI_vpa },
64 { "cub1", "le", CAP_TYPE_STR, &temp_term.TI_cub1 },
65 { "cuf1", "nd", CAP_TYPE_STR, &temp_term.TI_cuf1 },
66 { "civis", "vi", CAP_TYPE_STR, &temp_term.TI_civis },
67 { "cnorm", "ve", CAP_TYPE_STR, &temp_term.TI_cnorm },
70 { "csr", "cs", CAP_TYPE_STR, &temp_term.TI_csr },
71 { "wind", "wi", CAP_TYPE_STR, &temp_term.TI_wind },
72 { "ri", "sr", CAP_TYPE_STR, &temp_term.TI_ri },
73 { "rin", "SR", CAP_TYPE_STR, &temp_term.TI_rin },
74 { "ind", "sf", CAP_TYPE_STR, &temp_term.TI_ind },
75 { "indn", "SF", CAP_TYPE_STR, &temp_term.TI_indn },
76 { "il", "AL", CAP_TYPE_STR, &temp_term.TI_il },
77 { "il1", "al", CAP_TYPE_STR, &temp_term.TI_il1 },
78 { "dl", "DL", CAP_TYPE_STR, &temp_term.TI_dl },
79 { "dl1", "dl", CAP_TYPE_STR, &temp_term.TI_dl1 },
82 { "clear", "cl", CAP_TYPE_STR, &temp_term.TI_clear },
83 { "ed", "cd", CAP_TYPE_STR, &temp_term.TI_ed },
85 /* Clearing to end of line */
86 { "el", "ce", CAP_TYPE_STR, &temp_term.TI_el },
88 /* Repeating character */
89 { "rep", "rp", CAP_TYPE_STR, &temp_term.TI_rep },
92 { "sgr0", "me", CAP_TYPE_STR, &temp_term.TI_sgr0 },
93 { "smul", "us", CAP_TYPE_STR, &temp_term.TI_smul },
94 { "rmul", "ue", CAP_TYPE_STR, &temp_term.TI_rmul },
95 { "smso", "so", CAP_TYPE_STR, &temp_term.TI_smso },
96 { "rmso", "se", CAP_TYPE_STR, &temp_term.TI_rmso },
97 { "bold", "md", CAP_TYPE_STR, &temp_term.TI_bold },
98 { "blink", "mb", CAP_TYPE_STR, &temp_term.TI_blink },
99 { "setaf", "AF", CAP_TYPE_STR, &temp_term.TI_setaf },
100 { "setab", "AB", CAP_TYPE_STR, &temp_term.TI_setab },
101 { "setf", "Sf", CAP_TYPE_STR, &temp_term.TI_setf },
102 { "setb", "Sb", CAP_TYPE_STR, &temp_term.TI_setb },
105 { "bel", "bl", CAP_TYPE_STR, &temp_term.TI_bel },
108 /* Move cursor (cursor_address / cup) */
109 static void _move_cup(TERM_REC *term, int x, int y)
111 tput(tparm(term->TI_cup, y, x));
114 /* Move cursor (column_address+row_address / hpa+vpa) */
115 static void _move_pa(TERM_REC *term, int x, int y)
117 tput(tparm(term->TI_hpa, x));
118 tput(tparm(term->TI_vpa, y));
121 /* Move cursor from a known position */
122 static void _move_relative(TERM_REC *term, int oldx, int oldy, int x, int y)
124 if (oldx == 0 && x == 0 && y == oldy+1) {
125 /* move to beginning of next line -
126 hope this works everywhere */
131 if (oldx > 0 && y == oldy) {
132 /* move cursor left/right */
133 if (x == oldx-1 && term->TI_cub1) {
134 tput(tparm(term->TI_cub1));
137 if (x == oldx+1 && y == oldy && term->TI_cuf1) {
138 tput(tparm(term->TI_cuf1));
143 /* fallback to absolute positioning */
145 tput(tparm(term->TI_cup, y, x));
150 tput(tparm(term->TI_vpa, y));
152 tput(tparm(term->TI_hpa, x));
155 /* Set cursor visible/invisible */
156 static void _set_cursor_visible(TERM_REC *term, int set)
158 tput(tparm(set ? term->TI_cnorm : term->TI_civis));
161 #define scroll_region_setup(term, y1, y2) \
162 if ((term)->TI_csr != NULL) \
163 tput(tparm((term)->TI_csr, y1, y2)); \
164 else if ((term)->TI_wind != NULL) \
165 tput(tparm((term)->TI_wind, y1, y2, 0, (term)->width-1));
167 /* Scroll (change_scroll_region+parm_rindex+parm_index / csr+rin+indn) */
168 static void _scroll_region(TERM_REC *term, int y1, int y2, int count)
170 /* setup the scrolling region to wanted area */
171 scroll_region_setup(term, y1, y2);
173 term->move(term, 0, y1);
175 term->move(term, 0, y2);
176 tput(tparm(term->TI_indn, count, count));
177 } else if (count < 0) {
178 term->move(term, 0, y1);
179 tput(tparm(term->TI_rin, -count, -count));
182 /* reset the scrolling region to full screen */
183 scroll_region_setup(term, 0, term->height-1);
186 /* Scroll (change_scroll_region+scroll_reverse+scroll_forward / csr+ri+ind) */
187 static void _scroll_region_1(TERM_REC *term, int y1, int y2, int count)
191 /* setup the scrolling region to wanted area */
192 scroll_region_setup(term, y1, y2);
195 term->move(term, 0, y2);
196 for (i = 0; i < count; i++)
197 tput(tparm(term->TI_ind));
198 } else if (count < 0) {
199 term->move(term, 0, y1);
200 for (i = count; i < 0; i++)
201 tput(tparm(term->TI_ri));
202 tput(tparm(term->TI_rin, -count, -count));
205 /* reset the scrolling region to full screen */
206 scroll_region_setup(term, 0, term->height-1);
209 /* Scroll (parm_insert_line+parm_delete_line / il+dl) */
210 static void _scroll_line(TERM_REC *term, int y1, int y2, int count)
212 /* setup the scrolling region to wanted area -
213 this might not necessarily work with il/dl, but at least it
214 looks better if it does */
215 scroll_region_setup(term, y1, y2);
218 term->move(term, 0, y1);
219 tput(tparm(term->TI_dl, count, count));
220 term->move(term, 0, y2-count+1);
221 tput(tparm(term->TI_il, count, count));
222 } else if (count < 0) {
223 term->move(term, 0, y2+count+1);
224 tput(tparm(term->TI_dl, -count, -count));
225 term->move(term, 0, y1);
226 tput(tparm(term->TI_il, -count, -count));
229 /* reset the scrolling region to full screen */
230 scroll_region_setup(term, 0, term->height-1);
233 /* Scroll (insert_line+delete_line / il1+dl1) */
234 static void _scroll_line_1(TERM_REC *term, int y1, int y2, int count)
239 term->move(term, 0, y1);
240 for (i = 0; i < count; i++)
241 tput(tparm(term->TI_dl1));
242 term->move(term, 0, y2-count+1);
243 for (i = 0; i < count; i++)
244 tput(tparm(term->TI_il1));
245 } else if (count < 0) {
246 term->move(term, 0, y2+count+1);
247 for (i = count; i < 0; i++)
248 tput(tparm(term->TI_dl1));
249 term->move(term, 0, y1);
250 for (i = count; i < 0; i++)
251 tput(tparm(term->TI_il1));
255 /* Clear screen (clear_screen / clear) */
256 static void _clear_screen(TERM_REC *term)
258 tput(tparm(term->TI_clear));
261 /* Clear screen (clr_eos / ed) */
262 static void _clear_eos(TERM_REC *term)
264 term->move(term, 0, 0);
265 tput(tparm(term->TI_ed));
268 /* Clear screen (parm_delete_line / dl) */
269 static void _clear_del(TERM_REC *term)
271 term->move(term, 0, 0);
272 tput(tparm(term->TI_dl, term->height, term->height));
275 /* Clear screen (delete_line / dl1) */
276 static void _clear_del_1(TERM_REC *term)
280 term->move(term, 0, 0);
281 for (i = 0; i < term->height; i++)
282 tput(tparm(term->TI_dl1));
285 /* Clear to end of line (clr_eol / el) */
286 static void _clrtoeol(TERM_REC *term)
288 tput(tparm(term->TI_el));
291 /* Repeat character (rep / rp) */
292 static void _repeat(TERM_REC *term, int chr, int count)
294 tput(tparm(term->TI_rep, chr, count));
297 /* Repeat character (manual) */
298 static void _repeat_manual(TERM_REC *term, int chr, int count)
301 putc(chr, term->out);
306 /* Reset all terminal attributes */
307 static void _set_normal(TERM_REC *term)
309 tput(tparm(term->TI_normal));
313 static void _set_bold(TERM_REC *term)
315 tput(tparm(term->TI_bold));
318 /* Underline on/off */
319 static void _set_uline(TERM_REC *term, int set)
321 tput(tparm(set ? term->TI_smul : term->TI_rmul));
324 /* Standout on/off */
325 static void _set_standout(TERM_REC *term, int set)
327 tput(tparm(set ? term->TI_smso : term->TI_rmso));
330 /* Change foreground color */
331 static void _set_fg(TERM_REC *term, int color)
333 tput(tparm(term->TI_fg[color & 0x0f]));
336 /* Change background color */
337 static void _set_bg(TERM_REC *term, int color)
339 tput(tparm(term->TI_bg[color & 0x0f]));
343 static void _beep(TERM_REC *term)
345 tput(tparm(term->TI_bel));
348 static void _ignore(TERM_REC *term)
352 static void _ignore_parm(TERM_REC *term, int param)
356 static void term_fill_capabilities(TERM_REC *term)
362 #ifndef HAVE_TERMINFO
363 char *tptr = term->buffer2;
365 for (i = 0; i < sizeof(tcaps)/sizeof(tcaps[0]); i++) {
366 ptr = (char *) term + (int) ((char *) tcaps[i].ptr - (char *) &temp_term);
368 switch (tcaps[i].type) {
370 ival = term_getflag(tcaps[i]);
374 ival = term_getnum(tcaps[i]);
378 sval = term_getstr(tcaps[i], tptr);
379 if (sval == (char *) -1)
380 *(char **)ptr = NULL;
382 *(char **)ptr = sval;
388 /* Terminal was resized - ask the width/height from terminfo again */
389 void terminfo_resize(TERM_REC *term)
391 /* FIXME: is this possible? */
394 static void terminfo_colors_deinit(TERM_REC *term)
398 if (terminfo_is_colors_set(term)) {
399 for (i = 0; i < 16; i++) {
400 g_free(term->TI_fg[i]);
401 g_free(term->TI_bg[i]);
404 memset(term->TI_fg, 0, sizeof(term->TI_fg));
405 memset(term->TI_bg, 0, sizeof(term->TI_fg));
409 /* Setup colors - if force is set, use ANSI-style colors if
410 terminal capabilities don't contain color codes */
411 void terminfo_setup_colors(TERM_REC *term, int force)
413 static char ansitab[8] = { 0, 4, 2, 6, 1, 5, 3, 7 };
414 const char *bold, *blink;
417 terminfo_colors_deinit(term);
418 term->has_colors = term->TI_setf || term->TI_setaf;
421 for (i = 0; i < 8; i++)
422 term->TI_fg[i] = g_strdup(tparm(term->TI_setf, i, 0));
423 } else if (term->TI_setaf) {
424 for (i = 0; i < 8; i++)
425 term->TI_fg[i] = g_strdup(tparm(term->TI_setaf, ansitab[i], 0));
427 for (i = 0; i < 8; i++)
428 term->TI_fg[i] = g_strdup_printf("\033[%dm", 30+ansitab[i]);
432 for (i = 0; i < 8; i++)
433 term->TI_bg[i] = g_strdup(tparm(term->TI_setb, i, 0));
434 } else if (term->TI_setab) {
435 for (i = 0; i < 8; i++)
436 term->TI_bg[i] = g_strdup(tparm(term->TI_setab, ansitab[i], 0));
438 for (i = 0; i < 8; i++)
439 term->TI_bg[i] = g_strdup_printf("\033[%dm", 40+ansitab[i]);
442 if (term->TI_setf || term->TI_setaf || force) {
443 term->set_fg = _set_fg;
444 term->set_bg = _set_bg;
446 /* bold fg, blink bg */
447 bold = term->TI_bold ? term->TI_bold : "";
448 for (i = 0; i < 8; i++)
449 term->TI_fg[i+8] = g_strconcat(bold, term->TI_fg[i], NULL);
451 blink = term->TI_blink ? term->TI_blink : "";
452 for (i = 0; i < 8; i++)
453 term->TI_bg[i+8] = g_strconcat(blink, term->TI_bg[i], NULL);
456 term->set_fg = term->set_bg = _ignore_parm;
460 static void terminfo_input_init(TERM_REC *term)
462 tcgetattr(fileno(term->in), &term->old_tio);
463 memcpy(&term->tio, &term->old_tio, sizeof(term->tio));
465 term->tio.c_lflag &= ~(ICANON | ECHO); /* CBREAK, no ECHO */
466 term->tio.c_cc[VMIN] = 1; /* read() is satisfied after 1 char */
467 term->tio.c_cc[VTIME] = 0; /* No timer */
469 /* Disable INTR, QUIT, VDSUSP and SUSP keys */
470 term->tio.c_cc[VINTR] = _POSIX_VDISABLE;
471 term->tio.c_cc[VQUIT] = _POSIX_VDISABLE;
473 term->tio.c_cc[VDSUSP] = _POSIX_VDISABLE;
476 term->tio.c_cc[VSUSP] = _POSIX_VDISABLE;
479 tcsetattr(fileno(term->in), TCSADRAIN, &term->tio);
483 static void terminfo_input_deinit(TERM_REC *term)
485 tcsetattr(fileno(term->in), TCSADRAIN, &term->old_tio);
488 void terminfo_cont(TERM_REC *term)
491 tput(tparm(term->TI_smcup));
492 terminfo_input_init(term);
495 void terminfo_stop(TERM_REC *term)
498 terminfo_set_normal();
499 /* move cursor to bottom of the screen */
500 terminfo_move(0, term->height-1);
504 tput(tparm(term->TI_rmcup));
506 /* reset input settings */
507 terminfo_input_deinit(term);
511 static int term_setup(TERM_REC *term)
519 term_env = getenv("TERM");
520 if (term_env == NULL) {
521 fprintf(term->out, "TERM environment not set\n");
526 if (setupterm(term_env, 1, &err) != 0) {
527 fprintf(term->out, "setupterm() failed for TERM=%s: %d\n", term_env, err);
531 if (tgetent(term->buffer1, term_env) < 1)
533 fprintf(term->out, "Termcap not found for TERM=%s\n", term_env);
538 term_fill_capabilities(term);
540 /* Cursor movement */
542 term->move = _move_cup;
543 else if (term->TI_hpa && term->TI_vpa)
544 term->move = _move_pa;
546 fprintf(term->out, "Terminal doesn't support cursor movement\n");
549 term->move_relative = _move_relative;
550 term->set_cursor_visible = term->TI_civis && term->TI_cnorm ?
551 _set_cursor_visible : _ignore_parm;
554 if ((term->TI_csr || term->TI_wind) && term->TI_rin && term->TI_indn)
555 term->scroll = _scroll_region;
556 else if (term->TI_il && term->TI_dl)
557 term->scroll = _scroll_line;
558 else if ((term->TI_csr || term->TI_wind) && term->TI_ri && term->TI_ind)
559 term->scroll = _scroll_region_1;
560 else if (term->scroll == NULL && (term->TI_il1 && term->TI_dl1))
561 term->scroll = _scroll_line_1;
562 else if (term->scroll == NULL) {
563 fprintf(term->out, "Terminal doesn't support scrolling\n");
567 /* Clearing screen */
569 term->clear = _clear_screen;
570 else if (term->TI_ed)
571 term->clear = _clear_eos;
572 else if (term->TI_dl)
573 term->clear = _clear_del;
574 else if (term->TI_dl1)
575 term->clear = _clear_del_1;
577 /* we could do this by line inserts as well, but don't
578 bother - if some terminal has insert line it most probably
579 has delete line as well, if not a regular clear screen */
580 fprintf(term->out, "Terminal doesn't support clearing screen\n");
584 /* Clearing to end of line */
586 term->clrtoeol = _clrtoeol;
588 fprintf(term->out, "Terminal doesn't support clearing to end of line\n");
592 /* Repeating character */
594 term->repeat = _repeat;
596 term->repeat = _repeat_manual;
598 /* Bold, underline, standout */
599 term->set_bold = term->TI_bold ? _set_bold : _ignore;
600 term->set_uline = term->TI_smul && term->TI_rmul ?
601 _set_uline : _ignore_parm;
602 term->set_standout = term->TI_smso && term->TI_rmso ?
603 _set_standout : _ignore_parm;
605 /* Create a string to set all attributes off */
606 str = g_string_new(NULL);
608 g_string_append(str, term->TI_sgr0);
609 if (term->TI_rmul && (term->TI_sgr0 == NULL || strcmp(term->TI_rmul, term->TI_sgr0) != 0))
610 g_string_append(str, term->TI_rmul);
611 if (term->TI_rmso && (term->TI_sgr0 == NULL || strcmp(term->TI_rmso, term->TI_sgr0) != 0))
612 g_string_append(str, term->TI_rmso);
613 term->TI_normal = str->str;
614 g_string_free(str, FALSE);
615 term->set_normal = _set_normal;
617 term->beep = term->TI_bel ? _beep : _ignore;
619 terminfo_setup_colors(term, FALSE);
624 TERM_REC *terminfo_core_init(FILE *in, FILE *out)
626 TERM_REC *old_term, *term;
628 old_term = current_term;
629 current_term = term = g_new0(TERM_REC, 1);
634 if (!term_setup(term)) {
639 current_term = old_term;
643 void terminfo_core_deinit(TERM_REC *term)
647 old_term = current_term;
649 term->set_normal(term);
650 current_term = old_term;
654 g_free(term->TI_normal);
655 terminfo_colors_deinit(term);