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
31 #include <sys/ioctl.h>
32 #include <sys/types.h>
37 #elif defined(__FreeBSD__)
39 #elif defined(__OpenBSD__)
44 #ifndef NCURSES_ATTR_SHIFT
45 # define NCURSES_ATTR_SHIFT 8
48 #define IS_CONTROL(ch) !((ch) & 0xffffff60UL)
50 static int has_default = 0;
54 C0_SOH, C0_STX, C0_ETX, C0_EOT, C0_ENQ, C0_ACK, C0_BEL,
55 C0_BS , C0_HT , C0_LF , C0_VT , C0_FF , C0_CR , C0_SO , C0_SI ,
56 C0_DLE, C0_DC1, C0_DC2, D0_DC3, C0_DC4, C0_NAK, C0_SYN, C0_ETB,
57 C0_CAN, C0_EM , C0_SUB, C0_ESC, C0_IS4, C0_IS3, C0_IS2, C0_IS1,
62 C1_41 , C1_BPH, C1_NBH, C1_44 , C1_NEL, C1_SSA, C1_ESA,
63 C1_HTS, C1_HTJ, C1_VTS, C1_PLD, C1_PLU, C1_RI , C1_SS2, C1_SS3,
64 C1_DCS, C1_PU1, C1_PU2, C1_STS, C1_CCH, C1_MW , C1_SPA, C1_EPA,
65 C1_SOS, C1_59 , C1_SCI, C1_CSI, CS_ST , C1_OSC, C1_PM , C1_APC,
70 CSI_CUU, CSI_CUD, CSI_CUF, CSI_CUB, CSI_CNL, CSI_CPL, CSI_CHA,
71 CSI_CUP, CSI_CHT, CSI_ED , CSI_EL , CSI_IL , CSI_DL , CSI_EF , CSI_EA ,
72 CSI_DCH, CSI_SEE, CSI_CPR, CSI_SU , CSI_SD , CSI_NP , CSI_PP , CSI_CTC,
73 CSI_ECH, CSI_CVT, CSI_CBT, CSI_SRS, CSI_PTX, CSI_SDS, CSI_SIMD, CSI_5F,
74 CSI_HPA, CSI_HPR, CSI_REP, CSI_DA , CSI_VPA, CSI_VPR, CSI_HVP, CSI_TBC,
75 CSI_SM , CSI_MC , CSI_HPB, CSI_VPB, CSI_RM , CSI_SGR, CSI_DSR, CSI_DAQ,
76 CSI_70 , CSI_71 , CSI_72 , CSI_73 , CSI_74 , CSI_75 , CSI_76 , CSI_77 ,
77 CSI_78 , CSI_79 , CSI_7A , CSI_7B , CSI_7C , CSI_7D , CSI_7E , CSI_7F
85 unsigned seen_input : 1;
88 unsigned graphmode : 1;
95 struct t_row_t *lines;
96 struct t_row_t *scroll_top;
97 struct t_row_t *scroll_bot;
100 struct t_row_t *curs_row;
101 int curs_col, curs_srow, curs_scol;
103 /* buffers and parsing state */
110 typedef struct t_row_t {
116 static char const * const keytable[KEY_MAX+1] = {
120 [KEY_RIGHT] = "\e[C",
122 [KEY_BACKSPACE] = "\177",
123 [KEY_HOME] = "\e[1~",
127 [KEY_PPAGE] = "\e[5~",
128 [KEY_NPAGE] = "\e[6~",
129 [KEY_SUSPEND] = "\x1A", /* Ctrl+Z gets mapped to this */
130 [KEY_F(1)] = "\e[[A",
131 [KEY_F(2)] = "\e[[B",
132 [KEY_F(3)] = "\e[[C",
133 [KEY_F(4)] = "\e[[D",
134 [KEY_F(5)] = "\e[[E",
135 [KEY_F(6)] = "\e[17~",
136 [KEY_F(7)] = "\e[18~",
137 [KEY_F(8)] = "\e[19~",
138 [KEY_F(9)] = "\e[20~",
139 [KEY_F(10)] = "\e[21~",
142 static void t_row_set(t_row_t *row, int start, int len, uint16_t attr)
145 wmemset(row->text + start, 0, len);
146 for (int i = start; i < len + start; i++) {
151 static void t_row_roll(t_row_t *start, t_row_t *end, int count)
160 t_row_t *buf = alloca(count * sizeof(t_row_t));
162 memcpy(buf, start, count * sizeof(t_row_t));
163 memmove(start, start + count, (n - count) * sizeof(t_row_t));
164 memcpy(end - count, buf, count * sizeof(t_row_t));
165 for (t_row_t *row = start; row < end; row++) {
171 static void clamp_cursor_to_bounds(madtty_t *t)
173 if (t->curs_row < t->lines) {
174 t->curs_row = t->lines;
176 if (t->curs_row >= t->lines + t->rows) {
177 t->curs_row = t->lines + t->rows - 1;
180 if (t->curs_col < 0) {
183 if (t->curs_col >= t->cols) {
184 t->curs_col = t->cols - 1;
188 static void cursor_line_down(madtty_t *t)
191 if (t->curs_row < t->scroll_bot)
194 t->curs_row = t->scroll_bot - 1;
195 t_row_roll(t->scroll_top, t->scroll_bot, 1);
196 t_row_set(t->curs_row, 0, t->cols, 0);
199 __attribute__((const))
200 static uint16_t build_attrs(unsigned curattrs)
202 return ((curattrs & ~A_COLOR) | COLOR_PAIR(curattrs & 0xff))
203 >> NCURSES_ATTR_SHIFT;
206 static void new_escape_sequence(madtty_t *t)
213 static void cancel_escape_sequence(madtty_t *t)
220 static bool is_valid_csi_ender(int c)
222 return (c >= 'a' && c <= 'z')
223 || (c >= 'A' && c <= 'Z')
224 || (c == '@' || c == '`');
227 /* interprets a 'set attribute' (SGR) CSI escape sequence */
228 static void interpret_csi_SGR(madtty_t *t, int param[], int pcount)
233 /* special case: reset attributes */
234 t->curattrs = A_NORMAL;
238 for (i = 0; i < pcount; i++) {
240 #define CASE(x, op) case x: op; break
241 CASE(0, t->curattrs = A_NORMAL);
242 CASE(1, t->curattrs |= A_BOLD);
243 CASE(4, t->curattrs |= A_UNDERLINE);
244 CASE(5, t->curattrs |= A_BLINK);
245 CASE(6, t->curattrs |= A_BLINK);
246 CASE(7, t->curattrs |= A_REVERSE);
247 CASE(8, t->curattrs |= A_INVIS);
248 CASE(22, t->curattrs &= ~A_BOLD);
249 CASE(24, t->curattrs &= ~A_UNDERLINE);
250 CASE(25, t->curattrs &= ~A_BLINK);
251 CASE(27, t->curattrs &= ~A_REVERSE);
252 CASE(28, t->curattrs &= ~A_INVIS);
254 case 30 ... 37: /* fg */
256 t->curattrs &= ~0xf0;
257 t->curattrs |= (param[i] + 1 - 30) << 4;
260 t->curattrs |= (7 - (param[i] - 30)) << 3;
265 t->curattrs &= has_default ? ~0xf0 : ~070;
268 case 40 ... 47: /* bg */
270 t->curattrs &= ~0x0f;
271 t->curattrs |= (param[i] + 1 - 40);
274 t->curattrs |= (param[i] - 40);
279 t->curattrs &= has_default ? ~0x0f : ~007;
288 /* interprets an 'erase display' (ED) escape sequence */
289 static void interpret_csi_ED(madtty_t *t, int param[], int pcount)
291 t_row_t *row, *start, *end;
292 attr_t attr = build_attrs(t->curattrs);
295 if (pcount && param[0] == 2) {
297 end = t->lines + t->rows;
299 if (pcount && param[0] == 1) {
302 t_row_set(t->curs_row, 0, t->curs_col + 1, attr);
304 t_row_set(t->curs_row, t->curs_col,
305 t->cols - t->curs_col, attr);
306 start = t->curs_row + 1;
307 end = t->lines + t->rows;
310 for (row = start; row < end; row++) {
311 t_row_set(row, 0, t->cols, attr);
315 /* interprets a 'move cursor' (CUP) escape sequence */
316 static void interpret_csi_CUP(madtty_t *t, int param[], int pcount)
320 t->curs_row = t->lines;
325 return; /* malformed */
328 t->curs_row = t->lines + param[0] - 1;
329 t->curs_col = param[1] - 1;
331 clamp_cursor_to_bounds(t);
334 /* Interpret the 'relative mode' sequences: CUU, CUD, CUF, CUB, CNL,
335 * CPL, CHA, HPR, VPA, VPR, HPA */
337 interpret_csi_C(madtty_t *t, char verb, int param[], int pcount)
339 int n = (pcount && param[0] > 0) ? param[0] : 1;
342 case 'A': t->curs_row -= n; break;
343 case 'B': case 'e': t->curs_row += n; break;
344 case 'C': case 'a': t->curs_col += n; break;
345 case 'D': t->curs_col -= n; break;
346 case 'E': t->curs_row += n; t->curs_col = 0; break;
347 case 'F': t->curs_row -= n; t->curs_col = 0; break;
348 case 'G': case '`': t->curs_col = param[0] - 1; break;
349 case 'd': t->curs_row = t->lines + param[0] - 1; break;
352 clamp_cursor_to_bounds(t);
355 /* Interpret the 'erase line' escape sequence */
356 static void interpret_csi_EL(madtty_t *t, int param[], int pcount)
358 attr_t attr = build_attrs(t->curattrs);
360 switch (pcount ? param[0] : 0) {
362 t_row_set(t->curs_row, 0, t->curs_col + 1, attr);
365 t_row_set(t->curs_row, 0, t->cols, attr);
368 t_row_set(t->curs_row, t->curs_col, t->cols - t->curs_col,
374 /* Interpret the 'insert blanks' sequence (ICH) */
375 static void interpret_csi_ICH(madtty_t *t, int param[], int pcount)
377 t_row_t *row = t->curs_row;
378 int n = (pcount && param[0] > 0) ? param[0] : 1;
381 if (t->curs_col + n > t->cols) {
382 n = t->cols - t->curs_col;
385 for (i = t->cols - 1; i >= t->curs_col + n; i--) {
386 row->text[i] = row->text[i - n];
387 row->attr[i] = row->attr[i - n];
390 t_row_set(row, t->curs_col, n, build_attrs(t->curattrs));
393 /* Interpret the 'delete chars' sequence (DCH) */
394 static void interpret_csi_DCH(madtty_t *t, int param[], int pcount)
396 t_row_t *row = t->curs_row;
397 int n = (pcount && param[0] > 0) ? param[0] : 1;
400 if (t->curs_col + n > t->cols) {
401 n = t->cols - t->curs_col;
404 for (i = t->curs_col; i < t->cols - n; i++) {
405 row->text[i] = row->text[i + n];
406 row->attr[i] = row->attr[i + n];
409 t_row_set(row, t->cols - n, n, build_attrs(t->curattrs));
412 /* Interpret a 'scroll reverse' (SR) */
413 static void interpret_csi_SR(madtty_t *t)
415 t_row_roll(t->scroll_top, t->scroll_bot, -1);
416 t_row_set(t->scroll_top, 0, t->cols, build_attrs(t->curattrs));
419 /* Interpret an 'insert line' sequence (IL) */
420 static void interpret_csi_IL(madtty_t *t, int param[], int pcount)
422 int n = (pcount && param[0] > 0) ? param[0] : 1;
424 if (t->curs_row + n >= t->scroll_bot) {
425 for (t_row_t *row = t->curs_row; row < t->scroll_bot; row++) {
426 t_row_set(row, 0, t->cols, build_attrs(t->curattrs));
429 t_row_roll(t->curs_row, t->scroll_bot, -n);
430 for (t_row_t *row = t->curs_row; row < t->curs_row + n; row++) {
431 t_row_set(row, 0, t->cols, build_attrs(t->curattrs));
436 /* Interpret a 'delete line' sequence (DL) */
437 static void interpret_csi_DL(madtty_t *t, int param[], int pcount)
439 int n = (pcount && param[0] > 0) ? param[0] : 1;
441 if (t->curs_row + n >= t->scroll_bot) {
442 for (t_row_t *row = t->curs_row; row < t->scroll_bot; row++) {
443 t_row_set(row, 0, t->cols, build_attrs(t->curattrs));
446 t_row_roll(t->curs_row, t->scroll_bot, n);
447 for (t_row_t *row = t->scroll_bot - n; row < t->scroll_bot; row++) {
448 t_row_set(row, 0, t->cols, build_attrs(t->curattrs));
453 /* Interpret an 'erase characters' (ECH) sequence */
454 static void interpret_csi_ECH(madtty_t *t, int param[], int pcount)
456 int n = (pcount && param[0] > 0) ? param[0] : 1;
458 if (t->curs_col + n < t->cols) {
459 n = t->cols - t->curs_col;
461 t_row_set(t->curs_row, t->curs_col, n, build_attrs(t->curattrs));
464 /* Interpret a 'set scrolling region' (DECSTBM) sequence */
465 static void interpret_csi_DECSTBM(madtty_t *t, int param[], int pcount)
467 int new_top, new_bot;
471 t->scroll_top = t->lines;
472 t->scroll_bot = t->lines + t->rows;
475 return; /* malformed */
478 new_top = param[0] - 1;
481 /* clamp to bounds */
484 if (new_top >= t->rows)
485 new_top = t->rows - 1;
488 if (new_bot >= t->rows)
491 /* check for range validity */
492 if (new_top < new_bot) {
493 t->scroll_top = t->lines + new_top;
494 t->scroll_bot = t->lines + new_bot;
500 static void es_interpret_csi(madtty_t *t)
502 static int csiparam[BUFSIZ];
504 const char *p = t->ebuf + 1;
505 char verb = t->ebuf[t->elen - 1];
507 p += t->ebuf[1] == '?'; /* CSI private mode */
509 /* parse numeric parameters */
510 while (isdigit((unsigned char)*p) || *p == ';') {
512 if (param_count >= (int)sizeof(csiparam))
513 return; /* too long! */
514 csiparam[param_count++] = 0;
516 if (param_count == 0) csiparam[param_count++] = 0;
517 csiparam[param_count - 1] *= 10;
518 csiparam[param_count - 1] += *p - '0';
524 if (t->ebuf[1] == '?') {
527 if (csiparam[0] == 25)
532 if (csiparam[0] == 25)
538 /* delegate handling depending on command character (verb) */
541 if (param_count == 1 && csiparam[0] == 4) /* insert mode */
545 if (param_count == 1 && csiparam[0] == 4) /* replace mode */
548 case 'm': /* it's a 'set attribute' sequence */
549 interpret_csi_SGR(t, csiparam, param_count); break;
550 case 'J': /* it's an 'erase display' sequence */
551 interpret_csi_ED(t, csiparam, param_count); break;
552 case 'H': case 'f': /* it's a 'move cursor' sequence */
553 interpret_csi_CUP(t, csiparam, param_count); break;
554 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': case 'G':
555 case 'e': case 'a': case 'd': case '`':
556 /* it is a 'relative move' */
557 interpret_csi_C(t, verb, csiparam, param_count); break;
558 case 'K': /* erase line */
559 interpret_csi_EL(t, csiparam, param_count); break;
560 case '@': /* insert characters */
561 interpret_csi_ICH(t, csiparam, param_count); break;
562 case 'P': /* delete characters */
563 interpret_csi_DCH(t, csiparam, param_count); break;
564 case 'L': /* insert lines */
565 interpret_csi_IL(t, csiparam, param_count); break;
566 case 'M': /* delete lines */
567 interpret_csi_DL(t, csiparam, param_count); break;
568 case 'X': /* erase chars */
569 interpret_csi_ECH(t, csiparam, param_count); break;
570 case 'r': /* set scrolling region */
571 interpret_csi_DECSTBM(t, csiparam, param_count); break;
572 case 's': /* save cursor location */
573 t->curs_srow = t->curs_row - t->lines;
574 t->curs_scol = t->curs_col;
576 case 'u': /* restore cursor location */
577 t->curs_row = t->lines + t->curs_srow;
578 t->curs_col = t->curs_scol;
579 clamp_cursor_to_bounds(t);
586 static void try_interpret_escape_seq(madtty_t *t)
588 char lastchar = t->ebuf[t->elen-1];
596 cancel_escape_sequence(t);
605 case ']': /* xterm thing */
606 if (lastchar == '\a')
614 if (is_valid_csi_ender(lastchar)) {
616 cancel_escape_sequence(t);
622 if (t->elen + 1 >= (int)sizeof(t->ebuf)) {
625 fprintf(stderr, "cancelled: \\033");
626 for (int i = 0; i < (int)t->elen; i++) {
627 if (isprint(t->ebuf[i])) {
628 fputc(t->ebuf[i], stderr);
630 fprintf(stderr, "\\%03o", t->ebuf[i]);
635 cancel_escape_sequence(t);
639 static void madtty_process_nonprinting(madtty_t *t, wchar_t wc)
643 new_escape_sequence(t);
647 /* do nothing for now... maybe a visual bell would be nice? */
655 case C0_HT: /* tab */
656 t->curs_col = (t->curs_col + 8) & ~7;
657 if (t->curs_col >= t->cols)
658 t->curs_col = t->cols - 1;
671 case C0_SO: /* shift out - acs */
674 case C0_SI: /* shift in - acs */
675 t->graphmode = false;
682 static void is_utf8_locale(void)
684 const char *l = getenv("LANG");
686 is_utf8 = (strstr(l, "UTF-8") != NULL);
689 // vt100 special graphics and line drawing
690 // 5f-7e standard vt100
691 // 40-5e rxvt extension for extra curses acs chars
692 static uint16_t const vt100_utf8[62] = { // 41 .. 7e
693 0x2191, 0x2193, 0x2192, 0x2190, 0x2588, 0x259a, 0x2603, // 41-47 hi mr. snowman!
694 0, 0, 0, 0, 0, 0, 0, 0, // 48-4f
695 0, 0, 0, 0, 0, 0, 0, 0, // 50-57
696 0, 0, 0, 0, 0, 0, 0, 0x0020, // 58-5f
697 0x25c6, 0x2592, 0x2409, 0x240c, 0x240d, 0x240a, 0x00b0, 0x00b1, // 60-67
698 0x2424, 0x240b, 0x2518, 0x2510, 0x250c, 0x2514, 0x253c, 0x23ba, // 68-6f
699 0x23bb, 0x2500, 0x23bc, 0x23bd, 0x251c, 0x2524, 0x2534, 0x252c, // 70-77
700 0x2502, 0x2264, 0x2265, 0x03c0, 0x2260, 0x00a3, 0x00b7, // 78-7e
703 static uint32_t vt100[62];
705 void madtty_init_vt100_graphics(void)
707 vt100['l' - 0x41] = ACS_ULCORNER;
708 vt100['m' - 0x41] = ACS_LLCORNER;
709 vt100['k' - 0x41] = ACS_URCORNER;
710 vt100['j' - 0x41] = ACS_LRCORNER;
711 vt100['u' - 0x41] = ACS_RTEE;
712 vt100['t' - 0x41] = ACS_LTEE;
713 vt100['v' - 0x41] = ACS_TTEE;
714 vt100['w' - 0x41] = ACS_BTEE;
715 vt100['q' - 0x41] = ACS_HLINE;
716 vt100['x' - 0x41] = ACS_VLINE;
717 vt100['n' - 0x41] = ACS_PLUS;
718 vt100['o' - 0x41] = ACS_S1;
719 vt100['s' - 0x41] = ACS_S9;
720 vt100['`' - 0x41] = ACS_DIAMOND;
721 vt100['a' - 0x41] = ACS_CKBOARD;
722 vt100['f' - 0x41] = ACS_DEGREE;
723 vt100['g' - 0x41] = ACS_PLMINUS;
724 vt100['~' - 0x41] = ACS_BULLET;
725 vt100[',' - 0x41] = ACS_LARROW;
726 vt100['+' - 0x41] = ACS_RARROW;
727 vt100['.' - 0x41] = ACS_DARROW;
728 vt100['-' - 0x41] = ACS_UARROW;
729 vt100['h' - 0x41] = ACS_BOARD;
730 vt100['i' - 0x41] = ACS_LANTERN;
731 vt100['0' - 0x41] = ACS_BLOCK;
732 /* these defaults were invented for ncurses */
733 vt100['p' - 0x41] = ACS_S3;
734 vt100['r' - 0x41] = ACS_S7;
735 vt100['y' - 0x41] = ACS_LEQUAL;
736 vt100['z' - 0x41] = ACS_GEQUAL;
737 vt100['{' - 0x41] = ACS_PI;
738 vt100['|' - 0x41] = ACS_NEQUAL;
739 vt100['}' - 0x41] = ACS_STERLING;
743 static void madtty_putc(madtty_t *t, wchar_t wc)
747 if (!t->seen_input) {
749 kill(-t->childpid, SIGWINCH);
753 assert (t->elen + 1 < (int)sizeof(t->ebuf));
754 t->ebuf[t->elen] = wc;
755 t->ebuf[++t->elen] = '\0';
756 try_interpret_escape_seq(t);
757 } else if (IS_CONTROL(wc)) {
758 madtty_process_nonprinting(t, wc);
763 if (wc >= 0x41 && wc <= 0x7e) {
764 if(is_utf8 && vt100_utf8[wc - 0x41])
765 wc = vt100_utf8[wc - 0x41];
766 else if(!is_utf8 && vt100[wc - 0x41])
767 wc = vt100[wc - 0x41];
771 width = wcwidth(wc) ?: 1;
774 if (width == 2 && t->curs_col == t->cols - 1) {
777 tmp->text[t->curs_col] = 0;
778 tmp->attr[t->curs_col] = build_attrs(t->curattrs);
782 if (t->curs_col >= t->cols) {
791 wmemmove(tmp->text + t->curs_col + width, tmp->text + t->curs_col,
792 (t->cols - t->curs_col - width));
793 memmove(tmp->attr + t->curs_col + width, tmp->attr + t->curs_col,
794 (t->cols - t->curs_col - width) * sizeof(tmp->attr[0]));
797 tmp->text[t->curs_col] = wc;
798 tmp->attr[t->curs_col] = build_attrs(t->curattrs);
801 tmp->text[t->curs_col] = 0;
802 tmp->attr[t->curs_col] = build_attrs(t->curattrs);
808 int madtty_process(madtty_t *t)
817 res = read(t->pty, t->rbuf + t->rlen, sizeof(t->rbuf) - t->rlen);
822 while (pos < t->rlen) {
826 len = (ssize_t)mbrtowc(&wc, t->rbuf + pos, t->rlen - pos, &t->ps);
829 memmove(t->rbuf, t->rbuf + pos, t->rlen);
838 pos += len ? len : 1;
843 memmove(t->rbuf, t->rbuf + pos, t->rlen);
847 madtty_t *madtty_create(int rows, int cols)
852 if (rows <= 0 || cols <= 0)
855 t = (madtty_t*)calloc(sizeof(madtty_t), 1);
859 /* record dimensions */
863 /* default mode is replace */
866 /* create the cell matrix */
867 t->lines = (t_row_t*)calloc(sizeof(t_row_t), t->rows);
868 for (i = 0; i < t->rows; i++) {
869 t->lines[i].text = (wchar_t *)calloc(sizeof(wchar_t), t->cols);
870 t->lines[i].attr = (uint16_t *)calloc(sizeof(uint16_t), t->cols);
873 t->pty = -1; /* no pty for now */
875 /* initialization of other public fields */
876 t->curs_row = t->lines;
878 t->curattrs = A_NORMAL; /* white text over black background */
880 /* initial scrolling area is the whole window */
881 t->scroll_top = t->lines;
882 t->scroll_bot = t->lines + t->rows;
887 void madtty_resize(madtty_t *t, int rows, int cols)
889 struct winsize ws = { .ws_row = rows, .ws_col = cols };
890 t_row_t *lines = t->lines;
892 if (rows <= 0 || cols <= 0)
895 if (t->rows != rows) {
896 while (t->rows > rows) {
897 free(lines[t->rows - 1].text);
898 free(lines[t->rows - 1].attr);
902 lines = realloc(lines, sizeof(t_row_t) * rows);
905 if (t->cols != cols) {
906 for (int row = 0; row < t->rows; row++) {
907 lines[row].text = realloc(lines[row].text, sizeof(wchar_t) * cols);
908 lines[row].attr = realloc(lines[row].attr, sizeof(uint16_t) * cols);
910 t_row_set(lines + row, t->cols, cols - t->cols, 0);
912 lines[row].dirty = true;
917 while (t->rows < rows) {
918 lines[t->rows].text = (wchar_t *)calloc(sizeof(wchar_t), cols);
919 lines[t->rows].attr = (uint16_t *)calloc(sizeof(uint16_t), cols);
920 t_row_set(lines + t->rows, 0, t->cols, 0);
924 t->curs_row += lines - t->lines;
925 t->scroll_top = lines;
926 t->scroll_bot = lines + rows;
928 clamp_cursor_to_bounds(t);
929 ioctl(t->pty, TIOCSWINSZ, &ws);
930 kill(-t->childpid, SIGWINCH);
933 void madtty_destroy(madtty_t *t)
939 for (i = 0; i < t->rows; i++) {
940 free(t->lines[i].text);
941 free(t->lines[i].attr);
947 void madtty_draw(madtty_t *t, WINDOW *win, int srow, int scol)
950 for (int i = 0; i < t->rows; i++) {
951 t_row_t *row = t->lines + i;
957 wmove(win, srow + i, scol);
958 for (int j = 0; j < t->cols; j++) {
959 if (!j || row->attr[j] != row->attr[j - 1])
960 wattrset(win, (attr_t)row->attr[j] << NCURSES_ATTR_SHIFT);
961 if (is_utf8 && row->text[j] >= 128) {
962 char buf[MB_CUR_MAX + 1];
965 len = wcrtomb(buf, row->text[j], NULL);
966 waddnstr(win, buf, len);
967 if (wcwidth(row->text[j]) > 1)
970 waddch(win, row->text[j] > ' ' ? row->text[j] : ' ');
976 wmove(win, srow + t->curs_row - t->lines, scol + t->curs_col);
977 curs_set(!t->curshid);
980 /******************************************************/
982 pid_t madtty_forkpty(madtty_t *t, const char *p, const char *argv[], int *pty)
989 ws.ws_xpixel = ws.ws_ypixel = 0;
991 pid = forkpty(&t->pty, NULL, NULL, &ws);
997 setenv("TERM", "rxvt", 1);
998 execv(p, (char *const*)argv);
999 fprintf(stderr, "\nexecv() failed.\nCommand: '%s'\n", argv[0]);
1005 return t->childpid = pid;
1008 int madtty_getpty(madtty_t *t)
1013 void madtty_keypress(madtty_t *t, int keycode)
1015 char c = (char)keycode;
1019 if (keycode >= 0 && keycode < KEY_MAX && keytable[keycode]) {
1020 buf = keytable[keycode];
1021 len = strlen(keytable[keycode]);
1028 int res = write(t->pty, buf, len);
1029 if (res < 0 && errno != EAGAIN && errno != EINTR)
1037 void madtty_init_colors(void)
1039 if (COLOR_PAIRS > 64) {
1040 use_default_colors();
1041 assume_default_colors(-1, -1);
1044 for (int bg = -1; bg < 8; bg++) {
1045 for (int fg = -1; fg < 8; fg++) {
1046 init_pair((fg + 1) * 16 + bg + 1, fg, bg);
1050 for (int bg = 0; bg < 8; bg++) {
1051 for (int fg = 0; fg < 8; fg++) {
1052 init_pair((7 - fg) * 8 + bg, fg, bg);
1058 int madtty_color_pair(int fg, int bg)
1065 return COLOR_PAIR((fg + 1) * 16 + bg + 1);
1071 return COLOR_PAIR((7 - fg) * 8 + bg);