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));
204 /* reset the scrolling region to full screen */
205 scroll_region_setup(term, 0, term->height-1);
208 /* Scroll (parm_insert_line+parm_delete_line / il+dl) */
209 static void _scroll_line(TERM_REC *term, int y1, int y2, int count)
211 /* setup the scrolling region to wanted area -
212 this might not necessarily work with il/dl, but at least it
213 looks better if it does */
214 scroll_region_setup(term, y1, y2);
217 term->move(term, 0, y1);
218 tput(tparm(term->TI_dl, count, count));
219 term->move(term, 0, y2-count+1);
220 tput(tparm(term->TI_il, count, count));
221 } else if (count < 0) {
222 term->move(term, 0, y2+count+1);
223 tput(tparm(term->TI_dl, -count, -count));
224 term->move(term, 0, y1);
225 tput(tparm(term->TI_il, -count, -count));
228 /* reset the scrolling region to full screen */
229 scroll_region_setup(term, 0, term->height-1);
232 /* Scroll (insert_line+delete_line / il1+dl1) */
233 static void _scroll_line_1(TERM_REC *term, int y1, int y2, int count)
238 term->move(term, 0, y1);
239 for (i = 0; i < count; i++)
240 tput(tparm(term->TI_dl1));
241 term->move(term, 0, y2-count+1);
242 for (i = 0; i < count; i++)
243 tput(tparm(term->TI_il1));
244 } else if (count < 0) {
245 term->move(term, 0, y2+count+1);
246 for (i = count; i < 0; i++)
247 tput(tparm(term->TI_dl1));
248 term->move(term, 0, y1);
249 for (i = count; i < 0; i++)
250 tput(tparm(term->TI_il1));
254 /* Clear screen (clear_screen / clear) */
255 static void _clear_screen(TERM_REC *term)
257 tput(tparm(term->TI_clear));
260 /* Clear screen (clr_eos / ed) */
261 static void _clear_eos(TERM_REC *term)
263 term->move(term, 0, 0);
264 tput(tparm(term->TI_ed));
267 /* Clear screen (parm_delete_line / dl) */
268 static void _clear_del(TERM_REC *term)
270 term->move(term, 0, 0);
271 tput(tparm(term->TI_dl, term->height, term->height));
274 /* Clear screen (delete_line / dl1) */
275 static void _clear_del_1(TERM_REC *term)
279 term->move(term, 0, 0);
280 for (i = 0; i < term->height; i++)
281 tput(tparm(term->TI_dl1));
284 /* Clear to end of line (clr_eol / el) */
285 static void _clrtoeol(TERM_REC *term)
287 tput(tparm(term->TI_el));
290 /* Repeat character (rep / rp) */
291 static void _repeat(TERM_REC *term, int chr, int count)
293 tput(tparm(term->TI_rep, chr, count));
296 /* Repeat character (manual) */
297 static void _repeat_manual(TERM_REC *term, int chr, int count)
300 putc(chr, term->out);
305 /* Reset all terminal attributes */
306 static void _set_normal(TERM_REC *term)
308 tput(tparm(term->TI_normal));
312 static void _set_bold(TERM_REC *term)
314 tput(tparm(term->TI_bold));
317 /* Underline on/off */
318 static void _set_uline(TERM_REC *term, int set)
320 tput(tparm(set ? term->TI_smul : term->TI_rmul));
323 /* Standout on/off */
324 static void _set_standout(TERM_REC *term, int set)
326 tput(tparm(set ? term->TI_smso : term->TI_rmso));
329 /* Change foreground color */
330 static void _set_fg(TERM_REC *term, int color)
332 tput(tparm(term->TI_fg[color & 0x0f]));
335 /* Change background color */
336 static void _set_bg(TERM_REC *term, int color)
338 tput(tparm(term->TI_bg[color & 0x0f]));
342 static void _beep(TERM_REC *term)
344 tput(tparm(term->TI_bel));
347 static void _ignore(TERM_REC *term)
351 static void _ignore_parm(TERM_REC *term, int param)
355 static void term_fill_capabilities(TERM_REC *term)
361 #ifndef HAVE_TERMINFO
362 char *tptr = term->buffer2;
364 for (i = 0; i < sizeof(tcaps)/sizeof(tcaps[0]); i++) {
365 ptr = (char *) term + (int) ((char *) tcaps[i].ptr - (char *) &temp_term);
367 switch (tcaps[i].type) {
369 ival = term_getflag(tcaps[i]);
373 ival = term_getnum(tcaps[i]);
377 sval = term_getstr(tcaps[i], tptr);
378 if (sval == (char *) -1)
379 *(char **)ptr = NULL;
381 *(char **)ptr = sval;
387 /* Terminal was resized - ask the width/height from terminfo again */
388 void terminfo_resize(TERM_REC *term)
390 /* FIXME: is this possible? */
393 static void terminfo_colors_deinit(TERM_REC *term)
397 if (terminfo_is_colors_set(term)) {
398 for (i = 0; i < 16; i++) {
399 g_free(term->TI_fg[i]);
400 g_free(term->TI_bg[i]);
403 memset(term->TI_fg, 0, sizeof(term->TI_fg));
404 memset(term->TI_bg, 0, sizeof(term->TI_fg));
408 /* Setup colors - if force is set, use ANSI-style colors if
409 terminal capabilities don't contain color codes */
410 void terminfo_setup_colors(TERM_REC *term, int force)
412 static char ansitab[8] = { 0, 4, 2, 6, 1, 5, 3, 7 };
413 const char *bold, *blink;
416 terminfo_colors_deinit(term);
417 term->has_colors = term->TI_setf || term->TI_setaf;
420 for (i = 0; i < 8; i++)
421 term->TI_fg[i] = g_strdup(tparm(term->TI_setf, i, 0));
422 } else if (term->TI_setaf) {
423 for (i = 0; i < 8; i++)
424 term->TI_fg[i] = g_strdup(tparm(term->TI_setaf, ansitab[i], 0));
426 for (i = 0; i < 8; i++)
427 term->TI_fg[i] = g_strdup_printf("\033[%dm", 30+ansitab[i]);
431 for (i = 0; i < 8; i++)
432 term->TI_bg[i] = g_strdup(tparm(term->TI_setb, i, 0));
433 } else if (term->TI_setab) {
434 for (i = 0; i < 8; i++)
435 term->TI_bg[i] = g_strdup(tparm(term->TI_setab, ansitab[i], 0));
437 for (i = 0; i < 8; i++)
438 term->TI_bg[i] = g_strdup_printf("\033[%dm", 40+ansitab[i]);
441 if (term->TI_setf || term->TI_setaf || force) {
442 term->set_fg = _set_fg;
443 term->set_bg = _set_bg;
445 /* bold fg, blink bg */
446 bold = term->TI_bold ? term->TI_bold : "";
447 for (i = 0; i < 8; i++)
448 term->TI_fg[i+8] = g_strconcat(bold, term->TI_fg[i], NULL);
450 blink = term->TI_blink ? term->TI_blink : "";
451 for (i = 0; i < 8; i++)
452 term->TI_bg[i+8] = g_strconcat(blink, term->TI_bg[i], NULL);
455 term->set_fg = term->set_bg = _ignore_parm;
459 static void terminfo_input_init(TERM_REC *term)
461 tcgetattr(fileno(term->in), &term->old_tio);
462 memcpy(&term->tio, &term->old_tio, sizeof(term->tio));
464 term->tio.c_lflag &= ~(ICANON | ECHO); /* CBREAK, no ECHO */
465 term->tio.c_cc[VMIN] = 1; /* read() is satisfied after 1 char */
466 term->tio.c_cc[VTIME] = 0; /* No timer */
468 /* Disable INTR, QUIT, VDSUSP and SUSP keys */
469 term->tio.c_cc[VINTR] = _POSIX_VDISABLE;
470 term->tio.c_cc[VQUIT] = _POSIX_VDISABLE;
472 term->tio.c_cc[VDSUSP] = _POSIX_VDISABLE;
475 term->tio.c_cc[VSUSP] = _POSIX_VDISABLE;
478 tcsetattr(fileno(term->in), TCSADRAIN, &term->tio);
482 static void terminfo_input_deinit(TERM_REC *term)
484 tcsetattr(fileno(term->in), TCSADRAIN, &term->old_tio);
487 void terminfo_cont(TERM_REC *term)
490 tput(tparm(term->TI_smcup));
491 terminfo_input_init(term);
494 void terminfo_stop(TERM_REC *term)
497 terminfo_set_normal();
498 /* move cursor to bottom of the screen */
499 terminfo_move(0, term->height-1);
503 tput(tparm(term->TI_rmcup));
505 /* reset input settings */
506 terminfo_input_deinit(term);
510 static int term_setup(TERM_REC *term)
518 term_env = getenv("TERM");
519 if (term_env == NULL) {
520 fprintf(term->out, "TERM environment not set\n");
525 if (setupterm(term_env, 1, &err) != 0) {
526 fprintf(term->out, "setupterm() failed for TERM=%s: %d\n", term_env, err);
530 if (tgetent(term->buffer1, term_env) < 1)
532 fprintf(term->out, "Termcap not found for TERM=%s\n", term_env);
537 term_fill_capabilities(term);
539 /* Cursor movement */
541 term->move = _move_cup;
542 else if (term->TI_hpa && term->TI_vpa)
543 term->move = _move_pa;
545 fprintf(term->out, "Terminal doesn't support cursor movement\n");
548 term->move_relative = _move_relative;
549 term->set_cursor_visible = term->TI_civis && term->TI_cnorm ?
550 _set_cursor_visible : _ignore_parm;
553 if ((term->TI_csr || term->TI_wind) && term->TI_rin && term->TI_indn)
554 term->scroll = _scroll_region;
555 else if (term->TI_il && term->TI_dl)
556 term->scroll = _scroll_line;
557 else if ((term->TI_csr || term->TI_wind) && term->TI_ri && term->TI_ind)
558 term->scroll = _scroll_region_1;
559 else if (term->scroll == NULL && (term->TI_il1 && term->TI_dl1))
560 term->scroll = _scroll_line_1;
561 else if (term->scroll == NULL) {
562 fprintf(term->out, "Terminal doesn't support scrolling\n");
566 /* Clearing screen */
568 term->clear = _clear_screen;
569 else if (term->TI_ed)
570 term->clear = _clear_eos;
571 else if (term->TI_dl)
572 term->clear = _clear_del;
573 else if (term->TI_dl1)
574 term->clear = _clear_del_1;
576 /* we could do this by line inserts as well, but don't
577 bother - if some terminal has insert line it most probably
578 has delete line as well, if not a regular clear screen */
579 fprintf(term->out, "Terminal doesn't support clearing screen\n");
583 /* Clearing to end of line */
585 term->clrtoeol = _clrtoeol;
587 fprintf(term->out, "Terminal doesn't support clearing to end of line\n");
591 /* Repeating character */
593 term->repeat = _repeat;
595 term->repeat = _repeat_manual;
597 /* Bold, underline, standout */
598 term->set_bold = term->TI_bold ? _set_bold : _ignore;
599 term->set_uline = term->TI_smul && term->TI_rmul ?
600 _set_uline : _ignore_parm;
601 term->set_standout = term->TI_smso && term->TI_rmso ?
602 _set_standout : _ignore_parm;
604 /* Create a string to set all attributes off */
605 str = g_string_new(NULL);
607 g_string_append(str, term->TI_sgr0);
608 if (term->TI_rmul && (term->TI_sgr0 == NULL || strcmp(term->TI_rmul, term->TI_sgr0) != 0))
609 g_string_append(str, term->TI_rmul);
610 if (term->TI_rmso && (term->TI_sgr0 == NULL || strcmp(term->TI_rmso, term->TI_sgr0) != 0))
611 g_string_append(str, term->TI_rmso);
612 term->TI_normal = str->str;
613 g_string_free(str, FALSE);
614 term->set_normal = _set_normal;
616 term->beep = term->TI_bel ? _beep : _ignore;
618 terminfo_setup_colors(term, FALSE);
623 TERM_REC *terminfo_core_init(FILE *in, FILE *out)
625 TERM_REC *old_term, *term;
627 old_term = current_term;
628 current_term = term = g_new0(TERM_REC, 1);
633 if (!term_setup(term)) {
638 current_term = old_term;
642 void terminfo_core_deinit(TERM_REC *term)
646 old_term = current_term;
648 term->set_normal(term);
649 current_term = old_term;
653 g_free(term->TI_normal);
654 terminfo_colors_deinit(term);