3 This program is free software; you can redistribute it and/or
4 modify it under the terms of the GNU Lesser General Public
5 License (LGPL) as published by the Free Software Foundation.
7 Please refer to the COPYING file for more information.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with this program; if not, write to the Free Software
16 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 Copyright © 2004 Bruno T. C. de Oliveira
19 Copyright © 2006 Pierre Habouzit
32 #include <sys/ioctl.h>
33 #include <sys/types.h>
38 #elif defined(__FreeBSD__)
40 #elif defined(__OpenBSD__) || defined(__NetBSD__)
45 #ifndef NCURSES_ATTR_SHIFT
46 # define NCURSES_ATTR_SHIFT 8
49 #define IS_CONTROL(ch) !((ch) & 0xffffff60UL)
51 static int has_default, is_utf8;
55 C0_SOH, C0_STX, C0_ETX, C0_EOT, C0_ENQ, C0_ACK, C0_BEL,
56 C0_BS , C0_HT , C0_LF , C0_VT , C0_FF , C0_CR , C0_SO , C0_SI ,
57 C0_DLE, C0_DC1, C0_DC2, D0_DC3, C0_DC4, C0_NAK, C0_SYN, C0_ETB,
58 C0_CAN, C0_EM , C0_SUB, C0_ESC, C0_IS4, C0_IS3, C0_IS2, C0_IS1,
63 C1_41 , C1_BPH, C1_NBH, C1_44 , C1_NEL, C1_SSA, C1_ESA,
64 C1_HTS, C1_HTJ, C1_VTS, C1_PLD, C1_PLU, C1_RI , C1_SS2, C1_SS3,
65 C1_DCS, C1_PU1, C1_PU2, C1_STS, C1_CCH, C1_MW , C1_SPA, C1_EPA,
66 C1_SOS, C1_59 , C1_SCI, C1_CSI, CS_ST , C1_OSC, C1_PM , C1_APC,
71 CSI_CUU, CSI_CUD, CSI_CUF, CSI_CUB, CSI_CNL, CSI_CPL, CSI_CHA,
72 CSI_CUP, CSI_CHT, CSI_ED , CSI_EL , CSI_IL , CSI_DL , CSI_EF , CSI_EA ,
73 CSI_DCH, CSI_SEE, CSI_CPR, CSI_SU , CSI_SD , CSI_NP , CSI_PP , CSI_CTC,
74 CSI_ECH, CSI_CVT, CSI_CBT, CSI_SRS, CSI_PTX, CSI_SDS, CSI_SIMD, CSI_5F,
75 CSI_HPA, CSI_HPR, CSI_REP, CSI_DA , CSI_VPA, CSI_VPR, CSI_HVP, CSI_TBC,
76 CSI_SM , CSI_MC , CSI_HPB, CSI_VPB, CSI_RM , CSI_SGR, CSI_DSR, CSI_DAQ,
77 CSI_70 , CSI_71 , CSI_72 , CSI_73 , CSI_74 , CSI_75 , CSI_76 , CSI_77 ,
78 CSI_78 , CSI_79 , CSI_7A , CSI_7B , CSI_7C , CSI_7D , CSI_7E , CSI_7F
86 unsigned seen_input : 1;
89 unsigned graphmode : 1;
96 struct t_row_t *lines;
97 struct t_row_t *scroll_top;
98 struct t_row_t *scroll_bot;
101 struct t_row_t *curs_row;
102 int curs_col, curs_srow, curs_scol;
104 /* buffers and parsing state */
109 madtty_handler_t handler;
112 typedef struct t_row_t {
118 static char const * const keytable[KEY_MAX+1] = {
122 [KEY_RIGHT] = "\e[C",
124 [KEY_BACKSPACE] = "\177",
125 [KEY_HOME] = "\e[1~",
129 [KEY_PPAGE] = "\e[5~",
130 [KEY_NPAGE] = "\e[6~",
131 [KEY_SUSPEND] = "\x1A", /* Ctrl+Z gets mapped to this */
132 [KEY_F(1)] = "\e[11~",
133 [KEY_F(2)] = "\e[12~",
134 [KEY_F(3)] = "\e[13~",
135 [KEY_F(4)] = "\e[14~",
136 [KEY_F(5)] = "\e[15~",
137 [KEY_F(6)] = "\e[17~",
138 [KEY_F(7)] = "\e[18~",
139 [KEY_F(8)] = "\e[19~",
140 [KEY_F(9)] = "\e[20~",
141 [KEY_F(10)] = "\e[21~",
142 [KEY_F(11)] = "\e[23~",
143 [KEY_F(12)] = "\e[24~",
144 [KEY_F(13)] = "\e[25~",
145 [KEY_F(14)] = "\e[26~",
146 [KEY_F(15)] = "\e[28~",
147 [KEY_F(16)] = "\e[29~",
148 [KEY_F(17)] = "\e[31~",
149 [KEY_F(18)] = "\e[32~",
150 [KEY_F(19)] = "\e[33~",
151 [KEY_F(20)] = "\e[34~",
154 static void t_row_set(t_row_t *row, int start, int len, uint16_t attr)
157 wmemset(row->text + start, 0, len);
158 for (int i = start; i < len + start; i++) {
163 static void t_row_roll(t_row_t *start, t_row_t *end, int count)
172 t_row_t *buf = alloca(count * sizeof(t_row_t));
174 memcpy(buf, start, count * sizeof(t_row_t));
175 memmove(start, start + count, (n - count) * sizeof(t_row_t));
176 memcpy(end - count, buf, count * sizeof(t_row_t));
177 for (t_row_t *row = start; row < end; row++) {
183 static void clamp_cursor_to_bounds(madtty_t *t)
185 if (t->curs_row < t->lines) {
186 t->curs_row = t->lines;
188 if (t->curs_row >= t->lines + t->rows) {
189 t->curs_row = t->lines + t->rows - 1;
192 if (t->curs_col < 0) {
195 if (t->curs_col >= t->cols) {
196 t->curs_col = t->cols - 1;
200 static void cursor_line_down(madtty_t *t)
203 if (t->curs_row < t->scroll_bot)
206 t->curs_row = t->scroll_bot - 1;
207 t_row_roll(t->scroll_top, t->scroll_bot, 1);
208 t_row_set(t->curs_row, 0, t->cols, 0);
211 __attribute__((const))
212 static uint16_t build_attrs(unsigned curattrs)
214 return ((curattrs & ~A_COLOR) | COLOR_PAIR(curattrs & 0xff))
215 >> NCURSES_ATTR_SHIFT;
218 static void new_escape_sequence(madtty_t *t)
225 static void cancel_escape_sequence(madtty_t *t)
232 static bool is_valid_csi_ender(int c)
234 return (c >= 'a' && c <= 'z')
235 || (c >= 'A' && c <= 'Z')
236 || (c == '@' || c == '`');
239 /* interprets a 'set attribute' (SGR) CSI escape sequence */
240 static void interpret_csi_SGR(madtty_t *t, int param[], int pcount)
245 /* special case: reset attributes */
246 t->curattrs = A_NORMAL;
250 for (i = 0; i < pcount; i++) {
252 #define CASE(x, op) case x: op; break
253 CASE(0, t->curattrs = A_NORMAL);
254 CASE(1, t->curattrs |= A_BOLD);
255 CASE(4, t->curattrs |= A_UNDERLINE);
256 CASE(5, t->curattrs |= A_BLINK);
257 CASE(6, t->curattrs |= A_BLINK);
258 CASE(7, t->curattrs |= A_REVERSE);
259 CASE(8, t->curattrs |= A_INVIS);
260 CASE(22, t->curattrs &= ~A_BOLD);
261 CASE(24, t->curattrs &= ~A_UNDERLINE);
262 CASE(25, t->curattrs &= ~A_BLINK);
263 CASE(27, t->curattrs &= ~A_REVERSE);
264 CASE(28, t->curattrs &= ~A_INVIS);
266 case 30 ... 37: /* fg */
268 t->curattrs &= ~0xf0;
269 t->curattrs |= (param[i] + 1 - 30) << 4;
272 t->curattrs |= (7 - (param[i] - 30)) << 3;
277 t->curattrs &= has_default ? ~0xf0 : ~070;
280 case 40 ... 47: /* bg */
282 t->curattrs &= ~0x0f;
283 t->curattrs |= (param[i] + 1 - 40);
286 t->curattrs |= (param[i] - 40);
291 t->curattrs &= has_default ? ~0x0f : ~007;
300 /* interprets an 'erase display' (ED) escape sequence */
301 static void interpret_csi_ED(madtty_t *t, int param[], int pcount)
303 t_row_t *row, *start, *end;
304 attr_t attr = build_attrs(t->curattrs);
307 if (pcount && param[0] == 2) {
309 end = t->lines + t->rows;
311 if (pcount && param[0] == 1) {
314 t_row_set(t->curs_row, 0, t->curs_col + 1, attr);
316 t_row_set(t->curs_row, t->curs_col,
317 t->cols - t->curs_col, attr);
318 start = t->curs_row + 1;
319 end = t->lines + t->rows;
322 for (row = start; row < end; row++) {
323 t_row_set(row, 0, t->cols, attr);
327 /* interprets a 'move cursor' (CUP) escape sequence */
328 static void interpret_csi_CUP(madtty_t *t, int param[], int pcount)
332 t->curs_row = t->lines;
337 return; /* malformed */
340 t->curs_row = t->lines + param[0] - 1;
341 t->curs_col = param[1] - 1;
343 clamp_cursor_to_bounds(t);
346 /* Interpret the 'relative mode' sequences: CUU, CUD, CUF, CUB, CNL,
347 * CPL, CHA, HPR, VPA, VPR, HPA */
349 interpret_csi_C(madtty_t *t, char verb, int param[], int pcount)
351 int n = (pcount && param[0] > 0) ? param[0] : 1;
354 case 'A': t->curs_row -= n; break;
355 case 'B': case 'e': t->curs_row += n; break;
356 case 'C': case 'a': t->curs_col += n; break;
357 case 'D': t->curs_col -= n; break;
358 case 'E': t->curs_row += n; t->curs_col = 0; break;
359 case 'F': t->curs_row -= n; t->curs_col = 0; break;
360 case 'G': case '`': t->curs_col = param[0] - 1; break;
361 case 'd': t->curs_row = t->lines + param[0] - 1; break;
364 clamp_cursor_to_bounds(t);
367 /* Interpret the 'erase line' escape sequence */
368 static void interpret_csi_EL(madtty_t *t, int param[], int pcount)
370 attr_t attr = build_attrs(t->curattrs);
372 switch (pcount ? param[0] : 0) {
374 t_row_set(t->curs_row, 0, t->curs_col + 1, attr);
377 t_row_set(t->curs_row, 0, t->cols, attr);
380 t_row_set(t->curs_row, t->curs_col, t->cols - t->curs_col,
386 /* Interpret the 'insert blanks' sequence (ICH) */
387 static void interpret_csi_ICH(madtty_t *t, int param[], int pcount)
389 t_row_t *row = t->curs_row;
390 int n = (pcount && param[0] > 0) ? param[0] : 1;
393 if (t->curs_col + n > t->cols) {
394 n = t->cols - t->curs_col;
397 for (i = t->cols - 1; i >= t->curs_col + n; i--) {
398 row->text[i] = row->text[i - n];
399 row->attr[i] = row->attr[i - n];
402 t_row_set(row, t->curs_col, n, build_attrs(t->curattrs));
405 /* Interpret the 'delete chars' sequence (DCH) */
406 static void interpret_csi_DCH(madtty_t *t, int param[], int pcount)
408 t_row_t *row = t->curs_row;
409 int n = (pcount && param[0] > 0) ? param[0] : 1;
412 if (t->curs_col + n > t->cols) {
413 n = t->cols - t->curs_col;
416 for (i = t->curs_col; i < t->cols - n; i++) {
417 row->text[i] = row->text[i + n];
418 row->attr[i] = row->attr[i + n];
421 t_row_set(row, t->cols - n, n, build_attrs(t->curattrs));
424 /* Interpret a 'scroll reverse' (SR) */
425 static void interpret_csi_SR(madtty_t *t)
427 t_row_roll(t->scroll_top, t->scroll_bot, -1);
428 t_row_set(t->scroll_top, 0, t->cols, build_attrs(t->curattrs));
431 /* Interpret an 'insert line' sequence (IL) */
432 static void interpret_csi_IL(madtty_t *t, int param[], int pcount)
434 int n = (pcount && param[0] > 0) ? param[0] : 1;
436 if (t->curs_row + n >= t->scroll_bot) {
437 for (t_row_t *row = t->curs_row; row < t->scroll_bot; row++) {
438 t_row_set(row, 0, t->cols, build_attrs(t->curattrs));
441 t_row_roll(t->curs_row, t->scroll_bot, -n);
442 for (t_row_t *row = t->curs_row; row < t->curs_row + n; row++) {
443 t_row_set(row, 0, t->cols, build_attrs(t->curattrs));
448 /* Interpret a 'delete line' sequence (DL) */
449 static void interpret_csi_DL(madtty_t *t, int param[], int pcount)
451 int n = (pcount && param[0] > 0) ? param[0] : 1;
453 if (t->curs_row + n >= t->scroll_bot) {
454 for (t_row_t *row = t->curs_row; row < t->scroll_bot; row++) {
455 t_row_set(row, 0, t->cols, build_attrs(t->curattrs));
458 t_row_roll(t->curs_row, t->scroll_bot, n);
459 for (t_row_t *row = t->scroll_bot - n; row < t->scroll_bot; row++) {
460 t_row_set(row, 0, t->cols, build_attrs(t->curattrs));
465 /* Interpret an 'erase characters' (ECH) sequence */
466 static void interpret_csi_ECH(madtty_t *t, int param[], int pcount)
468 int n = (pcount && param[0] > 0) ? param[0] : 1;
470 if (t->curs_col + n < t->cols) {
471 n = t->cols - t->curs_col;
473 t_row_set(t->curs_row, t->curs_col, n, build_attrs(t->curattrs));
476 /* Interpret a 'set scrolling region' (DECSTBM) sequence */
477 static void interpret_csi_DECSTBM(madtty_t *t, int param[], int pcount)
479 int new_top, new_bot;
483 t->scroll_top = t->lines;
484 t->scroll_bot = t->lines + t->rows;
487 return; /* malformed */
490 new_top = param[0] - 1;
493 /* clamp to bounds */
496 if (new_top >= t->rows)
497 new_top = t->rows - 1;
500 if (new_bot >= t->rows)
503 /* check for range validity */
504 if (new_top < new_bot) {
505 t->scroll_top = t->lines + new_top;
506 t->scroll_bot = t->lines + new_bot;
512 static void es_interpret_csi(madtty_t *t)
514 static int csiparam[BUFSIZ];
516 const char *p = t->ebuf + 1;
517 char verb = t->ebuf[t->elen - 1];
519 p += t->ebuf[1] == '?'; /* CSI private mode */
521 /* parse numeric parameters */
522 while (isdigit((unsigned char)*p) || *p == ';') {
524 if (param_count >= (int)sizeof(csiparam))
525 return; /* too long! */
526 csiparam[param_count++] = 0;
528 if (param_count == 0) csiparam[param_count++] = 0;
529 csiparam[param_count - 1] *= 10;
530 csiparam[param_count - 1] += *p - '0';
536 if (t->ebuf[1] == '?') {
539 if (csiparam[0] == 25)
544 if (csiparam[0] == 25)
550 /* delegate handling depending on command character (verb) */
553 if (param_count == 1 && csiparam[0] == 4) /* insert mode */
557 if (param_count == 1 && csiparam[0] == 4) /* replace mode */
560 case 'm': /* it's a 'set attribute' sequence */
561 interpret_csi_SGR(t, csiparam, param_count); break;
562 case 'J': /* it's an 'erase display' sequence */
563 interpret_csi_ED(t, csiparam, param_count); break;
564 case 'H': case 'f': /* it's a 'move cursor' sequence */
565 interpret_csi_CUP(t, csiparam, param_count); break;
566 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': case 'G':
567 case 'e': case 'a': case 'd': case '`':
568 /* it is a 'relative move' */
569 interpret_csi_C(t, verb, csiparam, param_count); break;
570 case 'K': /* erase line */
571 interpret_csi_EL(t, csiparam, param_count); break;
572 case '@': /* insert characters */
573 interpret_csi_ICH(t, csiparam, param_count); break;
574 case 'P': /* delete characters */
575 interpret_csi_DCH(t, csiparam, param_count); break;
576 case 'L': /* insert lines */
577 interpret_csi_IL(t, csiparam, param_count); break;
578 case 'M': /* delete lines */
579 interpret_csi_DL(t, csiparam, param_count); break;
580 case 'X': /* erase chars */
581 interpret_csi_ECH(t, csiparam, param_count); break;
582 case 'r': /* set scrolling region */
583 interpret_csi_DECSTBM(t, csiparam, param_count); break;
584 case 's': /* save cursor location */
585 t->curs_srow = t->curs_row - t->lines;
586 t->curs_scol = t->curs_col;
588 case 'u': /* restore cursor location */
589 t->curs_row = t->lines + t->curs_srow;
590 t->curs_col = t->curs_scol;
591 clamp_cursor_to_bounds(t);
598 static void try_interpret_escape_seq(madtty_t *t)
600 char lastchar = t->ebuf[t->elen-1];
604 switch((*(t->handler))(t, t->ebuf)){
605 case MADTTY_HANDLER_OK:
607 case MADTTY_HANDLER_NOTYET:
614 cancel_escape_sequence(t);
623 case ']': /* xterm thing */
624 if (lastchar == '\a')
632 if (is_valid_csi_ender(lastchar)) {
634 cancel_escape_sequence(t);
640 if (t->elen + 1 >= (int)sizeof(t->ebuf)) {
643 fprintf(stderr, "cancelled: \\033");
644 for (int i = 0; i < (int)t->elen; i++) {
645 if (isprint(t->ebuf[i])) {
646 fputc(t->ebuf[i], stderr);
648 fprintf(stderr, "\\%03o", t->ebuf[i]);
653 cancel_escape_sequence(t);
657 static void madtty_process_nonprinting(madtty_t *t, wchar_t wc)
661 new_escape_sequence(t);
665 /* do nothing for now... maybe a visual bell would be nice? */
673 case C0_HT: /* tab */
674 t->curs_col = (t->curs_col + 8) & ~7;
675 if (t->curs_col >= t->cols)
676 t->curs_col = t->cols - 1;
689 case C0_SO: /* shift out - acs */
692 case C0_SI: /* shift in - acs */
693 t->graphmode = false;
698 static void is_utf8_locale(void)
700 const char *cset = nl_langinfo(CODESET) ?: "ANSI_X3.4-1968";
701 is_utf8 = !strcmp(cset, "UTF-8");
704 // vt100 special graphics and line drawing
705 // 5f-7e standard vt100
706 // 40-5e rxvt extension for extra curses acs chars
707 static uint16_t const vt100_utf8[62] = { // 41 .. 7e
708 0x2191, 0x2193, 0x2192, 0x2190, 0x2588, 0x259a, 0x2603, // 41-47 hi mr. snowman!
709 0, 0, 0, 0, 0, 0, 0, 0, // 48-4f
710 0, 0, 0, 0, 0, 0, 0, 0, // 50-57
711 0, 0, 0, 0, 0, 0, 0, 0x0020, // 58-5f
712 0x25c6, 0x2592, 0x2409, 0x240c, 0x240d, 0x240a, 0x00b0, 0x00b1, // 60-67
713 0x2424, 0x240b, 0x2518, 0x2510, 0x250c, 0x2514, 0x253c, 0x23ba, // 68-6f
714 0x23bb, 0x2500, 0x23bc, 0x23bd, 0x251c, 0x2524, 0x2534, 0x252c, // 70-77
715 0x2502, 0x2264, 0x2265, 0x03c0, 0x2260, 0x00a3, 0x00b7, // 78-7e
718 static uint32_t vt100[62];
720 void madtty_init_vt100_graphics(void)
722 vt100['l' - 0x41] = ACS_ULCORNER;
723 vt100['m' - 0x41] = ACS_LLCORNER;
724 vt100['k' - 0x41] = ACS_URCORNER;
725 vt100['j' - 0x41] = ACS_LRCORNER;
726 vt100['u' - 0x41] = ACS_RTEE;
727 vt100['t' - 0x41] = ACS_LTEE;
728 vt100['v' - 0x41] = ACS_TTEE;
729 vt100['w' - 0x41] = ACS_BTEE;
730 vt100['q' - 0x41] = ACS_HLINE;
731 vt100['x' - 0x41] = ACS_VLINE;
732 vt100['n' - 0x41] = ACS_PLUS;
733 vt100['o' - 0x41] = ACS_S1;
734 vt100['s' - 0x41] = ACS_S9;
735 vt100['`' - 0x41] = ACS_DIAMOND;
736 vt100['a' - 0x41] = ACS_CKBOARD;
737 vt100['f' - 0x41] = ACS_DEGREE;
738 vt100['g' - 0x41] = ACS_PLMINUS;
739 vt100['~' - 0x41] = ACS_BULLET;
740 vt100[',' - 0x41] = ACS_LARROW;
741 vt100['+' - 0x41] = ACS_RARROW;
742 vt100['.' - 0x41] = ACS_DARROW;
743 vt100['-' - 0x41] = ACS_UARROW;
744 vt100['h' - 0x41] = ACS_BOARD;
745 vt100['i' - 0x41] = ACS_LANTERN;
746 vt100['0' - 0x41] = ACS_BLOCK;
747 /* these defaults were invented for ncurses */
748 vt100['p' - 0x41] = ACS_S3;
749 vt100['r' - 0x41] = ACS_S7;
750 vt100['y' - 0x41] = ACS_LEQUAL;
751 vt100['z' - 0x41] = ACS_GEQUAL;
752 vt100['{' - 0x41] = ACS_PI;
753 vt100['|' - 0x41] = ACS_NEQUAL;
754 vt100['}' - 0x41] = ACS_STERLING;
758 static void madtty_putc(madtty_t *t, wchar_t wc)
762 if (!t->seen_input) {
764 kill(-t->childpid, SIGWINCH);
768 assert (t->elen + 1 < (int)sizeof(t->ebuf));
769 t->ebuf[t->elen] = wc;
770 t->ebuf[++t->elen] = '\0';
771 try_interpret_escape_seq(t);
772 } else if (IS_CONTROL(wc)) {
773 madtty_process_nonprinting(t, wc);
778 if (wc >= 0x41 && wc <= 0x7e) {
779 wchar_t gc = is_utf8 ? vt100_utf8[wc - 0x41] : vt100[wc - 0x41];
785 width = wcwidth(wc) ?: 1;
788 if (width == 2 && t->curs_col == t->cols - 1) {
791 tmp->text[t->curs_col] = 0;
792 tmp->attr[t->curs_col] = build_attrs(t->curattrs);
796 if (t->curs_col >= t->cols) {
805 wmemmove(tmp->text + t->curs_col + width, tmp->text + t->curs_col,
806 (t->cols - t->curs_col - width));
807 memmove(tmp->attr + t->curs_col + width, tmp->attr + t->curs_col,
808 (t->cols - t->curs_col - width) * sizeof(tmp->attr[0]));
811 tmp->text[t->curs_col] = wc;
812 tmp->attr[t->curs_col] = build_attrs(t->curattrs);
815 tmp->text[t->curs_col] = 0;
816 tmp->attr[t->curs_col] = build_attrs(t->curattrs);
822 int madtty_process(madtty_t *t)
831 res = read(t->pty, t->rbuf + t->rlen, sizeof(t->rbuf) - t->rlen);
836 while (pos < t->rlen) {
840 len = (ssize_t)mbrtowc(&wc, t->rbuf + pos, t->rlen - pos, &t->ps);
843 memmove(t->rbuf, t->rbuf + pos, t->rlen);
852 pos += len ? len : 1;
857 memmove(t->rbuf, t->rbuf + pos, t->rlen);
861 madtty_t *madtty_create(int rows, int cols)
866 if (rows <= 0 || cols <= 0)
869 t = (madtty_t*)calloc(sizeof(madtty_t), 1);
873 /* record dimensions */
877 /* default mode is replace */
880 /* create the cell matrix */
881 t->lines = (t_row_t*)calloc(sizeof(t_row_t), t->rows);
882 for (i = 0; i < t->rows; i++) {
883 t->lines[i].text = (wchar_t *)calloc(sizeof(wchar_t), t->cols);
884 t->lines[i].attr = (uint16_t *)calloc(sizeof(uint16_t), t->cols);
887 t->pty = -1; /* no pty for now */
889 /* initialization of other public fields */
890 t->curs_row = t->lines;
892 t->curattrs = A_NORMAL; /* white text over black background */
894 /* initial scrolling area is the whole window */
895 t->scroll_top = t->lines;
896 t->scroll_bot = t->lines + t->rows;
901 void madtty_resize(madtty_t *t, int rows, int cols)
903 struct winsize ws = { .ws_row = rows, .ws_col = cols };
904 t_row_t *lines = t->lines;
906 if (rows <= 0 || cols <= 0)
909 if (t->rows != rows) {
910 while (t->rows > rows) {
911 free(lines[t->rows - 1].text);
912 free(lines[t->rows - 1].attr);
916 lines = realloc(lines, sizeof(t_row_t) * rows);
919 if (t->cols != cols) {
920 for (int row = 0; row < t->rows; row++) {
921 lines[row].text = realloc(lines[row].text, sizeof(wchar_t) * cols);
922 lines[row].attr = realloc(lines[row].attr, sizeof(uint16_t) * cols);
924 t_row_set(lines + row, t->cols, cols - t->cols, 0);
926 lines[row].dirty = true;
931 while (t->rows < rows) {
932 lines[t->rows].text = (wchar_t *)calloc(sizeof(wchar_t), cols);
933 lines[t->rows].attr = (uint16_t *)calloc(sizeof(uint16_t), cols);
934 t_row_set(lines + t->rows, 0, t->cols, 0);
938 t->curs_row += lines - t->lines;
939 t->scroll_top = lines;
940 t->scroll_bot = lines + rows;
942 clamp_cursor_to_bounds(t);
943 ioctl(t->pty, TIOCSWINSZ, &ws);
944 kill(-t->childpid, SIGWINCH);
947 void madtty_destroy(madtty_t *t)
953 for (i = 0; i < t->rows; i++) {
954 free(t->lines[i].text);
955 free(t->lines[i].attr);
961 void madtty_draw(madtty_t *t, WINDOW *win, int srow, int scol)
964 for (int i = 0; i < t->rows; i++) {
965 t_row_t *row = t->lines + i;
971 wmove(win, srow + i, scol);
972 for (int j = 0; j < t->cols; j++) {
973 if (!j || row->attr[j] != row->attr[j - 1])
974 wattrset(win, (attr_t)row->attr[j] << NCURSES_ATTR_SHIFT);
975 if (row->text[j] >= 128) {
976 char buf[MB_CUR_MAX + 1];
979 len = wcrtomb(buf, row->text[j], NULL);
980 waddnstr(win, buf, len);
981 if (wcwidth(row->text[j]) > 1)
984 waddch(win, row->text[j] > ' ' ? row->text[j] : ' ');
990 wmove(win, srow + t->curs_row - t->lines, scol + t->curs_col);
991 curs_set(!t->curshid);
994 /******************************************************/
996 pid_t madtty_forkpty(madtty_t *t, const char *p, const char *argv[], int *pty)
1001 ws.ws_row = t->rows;
1002 ws.ws_col = t->cols;
1003 ws.ws_xpixel = ws.ws_ypixel = 0;
1005 pid = forkpty(&t->pty, NULL, NULL, &ws);
1011 setenv("TERM", "rxvt", 1);
1012 execv(p, (char *const*)argv);
1013 fprintf(stderr, "\nexecv() failed.\nCommand: '%s'\n", argv[0]);
1019 return t->childpid = pid;
1022 int madtty_getpty(madtty_t *t)
1027 void madtty_keypress(madtty_t *t, int keycode)
1029 char c = (char)keycode;
1033 if (keycode >= 0 && keycode < KEY_MAX && keytable[keycode]) {
1034 buf = keytable[keycode];
1035 len = strlen(keytable[keycode]);
1042 int res = write(t->pty, buf, len);
1043 if (res < 0 && errno != EAGAIN && errno != EINTR)
1051 void madtty_init_colors(void)
1053 if (COLOR_PAIRS > 64) {
1054 use_default_colors();
1057 for (int bg = -1; bg < 8; bg++) {
1058 for (int fg = -1; fg < 8; fg++) {
1059 init_pair((fg + 1) * 16 + bg + 1, fg, bg);
1063 int use_default = use_default_colors() == OK;
1064 for (int bg = 0; bg < 8; bg++) {
1065 for (int fg = 0; fg < 8; fg++) {
1067 init_pair((7 - fg) * 8 + bg,
1068 fg == COLOR_WHITE ? -1 : fg,
1069 bg == COLOR_BLACK ? -1 : bg);
1071 init_pair((7 - fg) * 8 + bg, fg, bg);
1078 int madtty_color_pair(int fg, int bg)
1085 return COLOR_PAIR((fg + 1) * 16 + bg + 1);
1091 return COLOR_PAIR((7 - fg) * 8 + bg);
1094 void madtty_set_handler(madtty_t *t, madtty_handler_t handler)
1096 t->handler = handler;