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;
113 typedef struct t_row_t {
119 static char const * const keytable[KEY_MAX+1] = {
123 [KEY_RIGHT] = "\e[C",
125 [KEY_BACKSPACE] = "\177",
126 [KEY_HOME] = "\e[1~",
130 [KEY_PPAGE] = "\e[5~",
131 [KEY_NPAGE] = "\e[6~",
132 [KEY_SUSPEND] = "\x1A", /* Ctrl+Z gets mapped to this */
133 [KEY_F(1)] = "\e[11~",
134 [KEY_F(2)] = "\e[12~",
135 [KEY_F(3)] = "\e[13~",
136 [KEY_F(4)] = "\e[14~",
137 [KEY_F(5)] = "\e[15~",
138 [KEY_F(6)] = "\e[17~",
139 [KEY_F(7)] = "\e[18~",
140 [KEY_F(8)] = "\e[19~",
141 [KEY_F(9)] = "\e[20~",
142 [KEY_F(10)] = "\e[21~",
143 [KEY_F(11)] = "\e[23~",
144 [KEY_F(12)] = "\e[24~",
145 [KEY_F(13)] = "\e[25~",
146 [KEY_F(14)] = "\e[26~",
147 [KEY_F(15)] = "\e[28~",
148 [KEY_F(16)] = "\e[29~",
149 [KEY_F(17)] = "\e[31~",
150 [KEY_F(18)] = "\e[32~",
151 [KEY_F(19)] = "\e[33~",
152 [KEY_F(20)] = "\e[34~",
155 static void t_row_set(t_row_t *row, int start, int len, uint16_t attr)
158 wmemset(row->text + start, 0, len);
159 for (int i = start; i < len + start; i++) {
164 static void t_row_roll(t_row_t *start, t_row_t *end, int count)
173 t_row_t *buf = alloca(count * sizeof(t_row_t));
175 memcpy(buf, start, count * sizeof(t_row_t));
176 memmove(start, start + count, (n - count) * sizeof(t_row_t));
177 memcpy(end - count, buf, count * sizeof(t_row_t));
178 for (t_row_t *row = start; row < end; row++) {
184 static void clamp_cursor_to_bounds(madtty_t *t)
186 if (t->curs_row < t->lines) {
187 t->curs_row = t->lines;
189 if (t->curs_row >= t->lines + t->rows) {
190 t->curs_row = t->lines + t->rows - 1;
193 if (t->curs_col < 0) {
196 if (t->curs_col >= t->cols) {
197 t->curs_col = t->cols - 1;
201 static void cursor_line_down(madtty_t *t)
204 if (t->curs_row < t->scroll_bot)
207 t->curs_row = t->scroll_bot - 1;
208 t_row_roll(t->scroll_top, t->scroll_bot, 1);
209 t_row_set(t->curs_row, 0, t->cols, 0);
212 __attribute__((const))
213 static uint16_t build_attrs(unsigned curattrs)
215 return ((curattrs & ~A_COLOR) | COLOR_PAIR(curattrs & 0xff))
216 >> NCURSES_ATTR_SHIFT;
219 static void new_escape_sequence(madtty_t *t)
226 static void cancel_escape_sequence(madtty_t *t)
233 static bool is_valid_csi_ender(int c)
235 return (c >= 'a' && c <= 'z')
236 || (c >= 'A' && c <= 'Z')
237 || (c == '@' || c == '`');
240 /* interprets a 'set attribute' (SGR) CSI escape sequence */
241 static void interpret_csi_SGR(madtty_t *t, int param[], int pcount)
246 /* special case: reset attributes */
247 t->curattrs = A_NORMAL;
251 for (i = 0; i < pcount; i++) {
253 #define CASE(x, op) case x: op; break
254 CASE(0, t->curattrs = A_NORMAL);
255 CASE(1, t->curattrs |= A_BOLD);
256 CASE(4, t->curattrs |= A_UNDERLINE);
257 CASE(5, t->curattrs |= A_BLINK);
258 CASE(6, t->curattrs |= A_BLINK);
259 CASE(7, t->curattrs |= A_REVERSE);
260 CASE(8, t->curattrs |= A_INVIS);
261 CASE(22, t->curattrs &= ~A_BOLD);
262 CASE(24, t->curattrs &= ~A_UNDERLINE);
263 CASE(25, t->curattrs &= ~A_BLINK);
264 CASE(27, t->curattrs &= ~A_REVERSE);
265 CASE(28, t->curattrs &= ~A_INVIS);
267 case 30 ... 37: /* fg */
269 t->curattrs &= ~0xf0;
270 t->curattrs |= (param[i] + 1 - 30) << 4;
273 t->curattrs |= (7 - (param[i] - 30)) << 3;
278 t->curattrs &= has_default ? ~0xf0 : ~070;
281 case 40 ... 47: /* bg */
283 t->curattrs &= ~0x0f;
284 t->curattrs |= (param[i] + 1 - 40);
287 t->curattrs |= (param[i] - 40);
292 t->curattrs &= has_default ? ~0x0f : ~007;
301 /* interprets an 'erase display' (ED) escape sequence */
302 static void interpret_csi_ED(madtty_t *t, int param[], int pcount)
304 t_row_t *row, *start, *end;
305 attr_t attr = build_attrs(t->curattrs);
308 if (pcount && param[0] == 2) {
310 end = t->lines + t->rows;
312 if (pcount && param[0] == 1) {
315 t_row_set(t->curs_row, 0, t->curs_col + 1, attr);
317 t_row_set(t->curs_row, t->curs_col,
318 t->cols - t->curs_col, attr);
319 start = t->curs_row + 1;
320 end = t->lines + t->rows;
323 for (row = start; row < end; row++) {
324 t_row_set(row, 0, t->cols, attr);
328 /* interprets a 'move cursor' (CUP) escape sequence */
329 static void interpret_csi_CUP(madtty_t *t, int param[], int pcount)
333 t->curs_row = t->lines;
338 return; /* malformed */
341 t->curs_row = t->lines + param[0] - 1;
342 t->curs_col = param[1] - 1;
344 clamp_cursor_to_bounds(t);
347 /* Interpret the 'relative mode' sequences: CUU, CUD, CUF, CUB, CNL,
348 * CPL, CHA, HPR, VPA, VPR, HPA */
350 interpret_csi_C(madtty_t *t, char verb, int param[], int pcount)
352 int n = (pcount && param[0] > 0) ? param[0] : 1;
355 case 'A': t->curs_row -= n; break;
356 case 'B': case 'e': t->curs_row += n; break;
357 case 'C': case 'a': t->curs_col += n; break;
358 case 'D': t->curs_col -= n; break;
359 case 'E': t->curs_row += n; t->curs_col = 0; break;
360 case 'F': t->curs_row -= n; t->curs_col = 0; break;
361 case 'G': case '`': t->curs_col = param[0] - 1; break;
362 case 'd': t->curs_row = t->lines + param[0] - 1; break;
365 clamp_cursor_to_bounds(t);
368 /* Interpret the 'erase line' escape sequence */
369 static void interpret_csi_EL(madtty_t *t, int param[], int pcount)
371 attr_t attr = build_attrs(t->curattrs);
373 switch (pcount ? param[0] : 0) {
375 t_row_set(t->curs_row, 0, t->curs_col + 1, attr);
378 t_row_set(t->curs_row, 0, t->cols, attr);
381 t_row_set(t->curs_row, t->curs_col, t->cols - t->curs_col,
387 /* Interpret the 'insert blanks' sequence (ICH) */
388 static void interpret_csi_ICH(madtty_t *t, int param[], int pcount)
390 t_row_t *row = t->curs_row;
391 int n = (pcount && param[0] > 0) ? param[0] : 1;
394 if (t->curs_col + n > t->cols) {
395 n = t->cols - t->curs_col;
398 for (i = t->cols - 1; i >= t->curs_col + n; i--) {
399 row->text[i] = row->text[i - n];
400 row->attr[i] = row->attr[i - n];
403 t_row_set(row, t->curs_col, n, build_attrs(t->curattrs));
406 /* Interpret the 'delete chars' sequence (DCH) */
407 static void interpret_csi_DCH(madtty_t *t, int param[], int pcount)
409 t_row_t *row = t->curs_row;
410 int n = (pcount && param[0] > 0) ? param[0] : 1;
413 if (t->curs_col + n > t->cols) {
414 n = t->cols - t->curs_col;
417 for (i = t->curs_col; i < t->cols - n; i++) {
418 row->text[i] = row->text[i + n];
419 row->attr[i] = row->attr[i + n];
422 t_row_set(row, t->cols - n, n, build_attrs(t->curattrs));
425 /* Interpret a 'scroll reverse' (SR) */
426 static void interpret_csi_SR(madtty_t *t)
428 t_row_roll(t->scroll_top, t->scroll_bot, -1);
429 t_row_set(t->scroll_top, 0, t->cols, build_attrs(t->curattrs));
432 /* Interpret an 'insert line' sequence (IL) */
433 static void interpret_csi_IL(madtty_t *t, int param[], int pcount)
435 int n = (pcount && param[0] > 0) ? param[0] : 1;
437 if (t->curs_row + n >= t->scroll_bot) {
438 for (t_row_t *row = t->curs_row; row < t->scroll_bot; row++) {
439 t_row_set(row, 0, t->cols, build_attrs(t->curattrs));
442 t_row_roll(t->curs_row, t->scroll_bot, -n);
443 for (t_row_t *row = t->curs_row; row < t->curs_row + n; row++) {
444 t_row_set(row, 0, t->cols, build_attrs(t->curattrs));
449 /* Interpret a 'delete line' sequence (DL) */
450 static void interpret_csi_DL(madtty_t *t, int param[], int pcount)
452 int n = (pcount && param[0] > 0) ? param[0] : 1;
454 if (t->curs_row + n >= t->scroll_bot) {
455 for (t_row_t *row = t->curs_row; row < t->scroll_bot; row++) {
456 t_row_set(row, 0, t->cols, build_attrs(t->curattrs));
459 t_row_roll(t->curs_row, t->scroll_bot, n);
460 for (t_row_t *row = t->scroll_bot - n; row < t->scroll_bot; row++) {
461 t_row_set(row, 0, t->cols, build_attrs(t->curattrs));
466 /* Interpret an 'erase characters' (ECH) sequence */
467 static void interpret_csi_ECH(madtty_t *t, int param[], int pcount)
469 int n = (pcount && param[0] > 0) ? param[0] : 1;
471 if (t->curs_col + n < t->cols) {
472 n = t->cols - t->curs_col;
474 t_row_set(t->curs_row, t->curs_col, n, build_attrs(t->curattrs));
477 /* Interpret a 'set scrolling region' (DECSTBM) sequence */
478 static void interpret_csi_DECSTBM(madtty_t *t, int param[], int pcount)
480 int new_top, new_bot;
484 t->scroll_top = t->lines;
485 t->scroll_bot = t->lines + t->rows;
488 return; /* malformed */
491 new_top = param[0] - 1;
494 /* clamp to bounds */
497 if (new_top >= t->rows)
498 new_top = t->rows - 1;
501 if (new_bot >= t->rows)
504 /* check for range validity */
505 if (new_top < new_bot) {
506 t->scroll_top = t->lines + new_top;
507 t->scroll_bot = t->lines + new_bot;
513 static void es_interpret_csi(madtty_t *t)
515 static int csiparam[BUFSIZ];
517 const char *p = t->ebuf + 1;
518 char verb = t->ebuf[t->elen - 1];
520 p += t->ebuf[1] == '?'; /* CSI private mode */
522 /* parse numeric parameters */
523 while (isdigit((unsigned char)*p) || *p == ';') {
525 if (param_count >= (int)sizeof(csiparam))
526 return; /* too long! */
527 csiparam[param_count++] = 0;
529 if (param_count == 0) csiparam[param_count++] = 0;
530 csiparam[param_count - 1] *= 10;
531 csiparam[param_count - 1] += *p - '0';
537 if (t->ebuf[1] == '?') {
540 if (csiparam[0] == 25)
545 if (csiparam[0] == 25)
551 /* delegate handling depending on command character (verb) */
554 if (param_count == 1 && csiparam[0] == 4) /* insert mode */
558 if (param_count == 1 && csiparam[0] == 4) /* replace mode */
561 case 'm': /* it's a 'set attribute' sequence */
562 interpret_csi_SGR(t, csiparam, param_count); break;
563 case 'J': /* it's an 'erase display' sequence */
564 interpret_csi_ED(t, csiparam, param_count); break;
565 case 'H': case 'f': /* it's a 'move cursor' sequence */
566 interpret_csi_CUP(t, csiparam, param_count); break;
567 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': case 'G':
568 case 'e': case 'a': case 'd': case '`':
569 /* it is a 'relative move' */
570 interpret_csi_C(t, verb, csiparam, param_count); break;
571 case 'K': /* erase line */
572 interpret_csi_EL(t, csiparam, param_count); break;
573 case '@': /* insert characters */
574 interpret_csi_ICH(t, csiparam, param_count); break;
575 case 'P': /* delete characters */
576 interpret_csi_DCH(t, csiparam, param_count); break;
577 case 'L': /* insert lines */
578 interpret_csi_IL(t, csiparam, param_count); break;
579 case 'M': /* delete lines */
580 interpret_csi_DL(t, csiparam, param_count); break;
581 case 'X': /* erase chars */
582 interpret_csi_ECH(t, csiparam, param_count); break;
583 case 'r': /* set scrolling region */
584 interpret_csi_DECSTBM(t, csiparam, param_count); break;
585 case 's': /* save cursor location */
586 t->curs_srow = t->curs_row - t->lines;
587 t->curs_scol = t->curs_col;
589 case 'u': /* restore cursor location */
590 t->curs_row = t->lines + t->curs_srow;
591 t->curs_col = t->curs_scol;
592 clamp_cursor_to_bounds(t);
599 static void try_interpret_escape_seq(madtty_t *t)
601 char lastchar = t->ebuf[t->elen-1];
605 switch((*(t->handler))(t, t->ebuf)){
606 case MADTTY_HANDLER_OK:
608 case MADTTY_HANDLER_NOTYET:
615 cancel_escape_sequence(t);
624 case ']': /* xterm thing */
625 if (lastchar == '\a')
633 if (is_valid_csi_ender(lastchar)) {
635 cancel_escape_sequence(t);
641 if (t->elen + 1 >= (int)sizeof(t->ebuf)) {
644 fprintf(stderr, "cancelled: \\033");
645 for (int i = 0; i < (int)t->elen; i++) {
646 if (isprint(t->ebuf[i])) {
647 fputc(t->ebuf[i], stderr);
649 fprintf(stderr, "\\%03o", t->ebuf[i]);
654 cancel_escape_sequence(t);
658 static void madtty_process_nonprinting(madtty_t *t, wchar_t wc)
662 new_escape_sequence(t);
666 /* do nothing for now... maybe a visual bell would be nice? */
674 case C0_HT: /* tab */
675 t->curs_col = (t->curs_col + 8) & ~7;
676 if (t->curs_col >= t->cols)
677 t->curs_col = t->cols - 1;
690 case C0_SO: /* shift out - acs */
693 case C0_SI: /* shift in - acs */
694 t->graphmode = false;
699 static void is_utf8_locale(void)
701 const char *cset = nl_langinfo(CODESET) ?: "ANSI_X3.4-1968";
702 is_utf8 = !strcmp(cset, "UTF-8");
705 // vt100 special graphics and line drawing
706 // 5f-7e standard vt100
707 // 40-5e rxvt extension for extra curses acs chars
708 static uint16_t const vt100_utf8[62] = { // 41 .. 7e
709 0x2191, 0x2193, 0x2192, 0x2190, 0x2588, 0x259a, 0x2603, // 41-47 hi mr. snowman!
710 0, 0, 0, 0, 0, 0, 0, 0, // 48-4f
711 0, 0, 0, 0, 0, 0, 0, 0, // 50-57
712 0, 0, 0, 0, 0, 0, 0, 0x0020, // 58-5f
713 0x25c6, 0x2592, 0x2409, 0x240c, 0x240d, 0x240a, 0x00b0, 0x00b1, // 60-67
714 0x2424, 0x240b, 0x2518, 0x2510, 0x250c, 0x2514, 0x253c, 0x23ba, // 68-6f
715 0x23bb, 0x2500, 0x23bc, 0x23bd, 0x251c, 0x2524, 0x2534, 0x252c, // 70-77
716 0x2502, 0x2264, 0x2265, 0x03c0, 0x2260, 0x00a3, 0x00b7, // 78-7e
719 static uint32_t vt100[62];
721 void madtty_init_vt100_graphics(void)
723 vt100['l' - 0x41] = ACS_ULCORNER;
724 vt100['m' - 0x41] = ACS_LLCORNER;
725 vt100['k' - 0x41] = ACS_URCORNER;
726 vt100['j' - 0x41] = ACS_LRCORNER;
727 vt100['u' - 0x41] = ACS_RTEE;
728 vt100['t' - 0x41] = ACS_LTEE;
729 vt100['v' - 0x41] = ACS_TTEE;
730 vt100['w' - 0x41] = ACS_BTEE;
731 vt100['q' - 0x41] = ACS_HLINE;
732 vt100['x' - 0x41] = ACS_VLINE;
733 vt100['n' - 0x41] = ACS_PLUS;
734 vt100['o' - 0x41] = ACS_S1;
735 vt100['s' - 0x41] = ACS_S9;
736 vt100['`' - 0x41] = ACS_DIAMOND;
737 vt100['a' - 0x41] = ACS_CKBOARD;
738 vt100['f' - 0x41] = ACS_DEGREE;
739 vt100['g' - 0x41] = ACS_PLMINUS;
740 vt100['~' - 0x41] = ACS_BULLET;
741 #if 0 /* out of bounds */
742 vt100[',' - 0x41] = ACS_LARROW;
743 vt100['+' - 0x41] = ACS_RARROW;
744 vt100['.' - 0x41] = ACS_DARROW;
745 vt100['-' - 0x41] = ACS_UARROW;
746 vt100['0' - 0x41] = ACS_BLOCK;
748 vt100['h' - 0x41] = ACS_BOARD;
749 vt100['i' - 0x41] = ACS_LANTERN;
750 /* these defaults were invented for ncurses */
751 vt100['p' - 0x41] = ACS_S3;
752 vt100['r' - 0x41] = ACS_S7;
753 vt100['y' - 0x41] = ACS_LEQUAL;
754 vt100['z' - 0x41] = ACS_GEQUAL;
755 vt100['{' - 0x41] = ACS_PI;
756 vt100['|' - 0x41] = ACS_NEQUAL;
757 vt100['}' - 0x41] = ACS_STERLING;
761 static void madtty_putc(madtty_t *t, wchar_t wc)
765 if (!t->seen_input) {
767 kill(-t->childpid, SIGWINCH);
771 assert (t->elen + 1 < (int)sizeof(t->ebuf));
772 t->ebuf[t->elen] = wc;
773 t->ebuf[++t->elen] = '\0';
774 try_interpret_escape_seq(t);
775 } else if (IS_CONTROL(wc)) {
776 madtty_process_nonprinting(t, wc);
781 if (wc >= 0x41 && wc <= 0x7e) {
782 wchar_t gc = is_utf8 ? vt100_utf8[wc - 0x41] : vt100[wc - 0x41];
788 width = wcwidth(wc) ?: 1;
791 if (width == 2 && t->curs_col == t->cols - 1) {
794 tmp->text[t->curs_col] = 0;
795 tmp->attr[t->curs_col] = build_attrs(t->curattrs);
799 if (t->curs_col >= t->cols) {
808 wmemmove(tmp->text + t->curs_col + width, tmp->text + t->curs_col,
809 (t->cols - t->curs_col - width));
810 memmove(tmp->attr + t->curs_col + width, tmp->attr + t->curs_col,
811 (t->cols - t->curs_col - width) * sizeof(tmp->attr[0]));
814 tmp->text[t->curs_col] = wc;
815 tmp->attr[t->curs_col] = build_attrs(t->curattrs);
818 tmp->text[t->curs_col] = 0;
819 tmp->attr[t->curs_col] = build_attrs(t->curattrs);
825 int madtty_process(madtty_t *t)
834 res = read(t->pty, t->rbuf + t->rlen, sizeof(t->rbuf) - t->rlen);
839 while (pos < t->rlen) {
843 len = (ssize_t)mbrtowc(&wc, t->rbuf + pos, t->rlen - pos, &t->ps);
846 memmove(t->rbuf, t->rbuf + pos, t->rlen);
855 pos += len ? len : 1;
860 memmove(t->rbuf, t->rbuf + pos, t->rlen);
864 madtty_t *madtty_create(int rows, int cols)
869 if (rows <= 0 || cols <= 0)
872 t = (madtty_t*)calloc(sizeof(madtty_t), 1);
876 /* record dimensions */
880 /* default mode is replace */
883 /* create the cell matrix */
884 t->lines = (t_row_t*)calloc(sizeof(t_row_t), t->rows);
885 for (i = 0; i < t->rows; i++) {
886 t->lines[i].text = (wchar_t *)calloc(sizeof(wchar_t), t->cols);
887 t->lines[i].attr = (uint16_t *)calloc(sizeof(uint16_t), t->cols);
890 t->pty = -1; /* no pty for now */
892 /* initialization of other public fields */
893 t->curs_row = t->lines;
895 t->curattrs = A_NORMAL; /* white text over black background */
897 /* initial scrolling area is the whole window */
898 t->scroll_top = t->lines;
899 t->scroll_bot = t->lines + t->rows;
904 void madtty_resize(madtty_t *t, int rows, int cols)
906 struct winsize ws = { .ws_row = rows, .ws_col = cols };
907 t_row_t *lines = t->lines;
909 if (rows <= 0 || cols <= 0)
912 if (t->rows != rows) {
913 while (t->rows > rows) {
914 free(lines[t->rows - 1].text);
915 free(lines[t->rows - 1].attr);
919 lines = realloc(lines, sizeof(t_row_t) * rows);
922 if (t->cols != cols) {
923 for (int row = 0; row < t->rows; row++) {
924 lines[row].text = realloc(lines[row].text, sizeof(wchar_t) * cols);
925 lines[row].attr = realloc(lines[row].attr, sizeof(uint16_t) * cols);
927 t_row_set(lines + row, t->cols, cols - t->cols, 0);
929 lines[row].dirty = true;
934 while (t->rows < rows) {
935 lines[t->rows].text = (wchar_t *)calloc(sizeof(wchar_t), cols);
936 lines[t->rows].attr = (uint16_t *)calloc(sizeof(uint16_t), cols);
937 t_row_set(lines + t->rows, 0, t->cols, 0);
941 t->curs_row += lines - t->lines;
942 t->scroll_top = lines;
943 t->scroll_bot = lines + rows;
945 clamp_cursor_to_bounds(t);
946 ioctl(t->pty, TIOCSWINSZ, &ws);
947 kill(-t->childpid, SIGWINCH);
950 void madtty_destroy(madtty_t *t)
956 for (i = 0; i < t->rows; i++) {
957 free(t->lines[i].text);
958 free(t->lines[i].attr);
964 void madtty_draw(madtty_t *t, WINDOW *win, int srow, int scol)
967 for (int i = 0; i < t->rows; i++) {
968 t_row_t *row = t->lines + i;
974 wmove(win, srow + i, scol);
975 for (int j = 0; j < t->cols; j++) {
976 if (!j || row->attr[j] != row->attr[j - 1])
977 wattrset(win, (attr_t)row->attr[j] << NCURSES_ATTR_SHIFT);
978 if (row->text[j] >= 128) {
979 char buf[MB_CUR_MAX + 1];
982 len = wcrtomb(buf, row->text[j], NULL);
983 waddnstr(win, buf, len);
984 if (wcwidth(row->text[j]) > 1)
987 waddch(win, row->text[j] > ' ' ? row->text[j] : ' ');
993 wmove(win, srow + t->curs_row - t->lines, scol + t->curs_col);
994 curs_set(!t->curshid);
997 /******************************************************/
999 pid_t madtty_forkpty(madtty_t *t, const char *p, const char *argv[], int *pty)
1004 ws.ws_row = t->rows;
1005 ws.ws_col = t->cols;
1006 ws.ws_xpixel = ws.ws_ypixel = 0;
1008 pid = forkpty(&t->pty, NULL, NULL, &ws);
1014 setenv("TERM", "rxvt", 1);
1015 execv(p, (char *const*)argv);
1016 fprintf(stderr, "\nexecv() failed.\nCommand: '%s'\n", argv[0]);
1022 return t->childpid = pid;
1025 int madtty_getpty(madtty_t *t)
1030 void madtty_keypress(madtty_t *t, int keycode)
1032 char c = (char)keycode;
1036 if (keycode >= 0 && keycode < KEY_MAX && keytable[keycode]) {
1037 buf = keytable[keycode];
1038 len = strlen(keytable[keycode]);
1045 int res = write(t->pty, buf, len);
1046 if (res < 0 && errno != EAGAIN && errno != EINTR)
1054 void madtty_init_colors(void)
1056 if (COLOR_PAIRS > 64) {
1057 use_default_colors();
1060 for (int bg = -1; bg < 8; bg++) {
1061 for (int fg = -1; fg < 8; fg++) {
1062 init_pair((fg + 1) * 16 + bg + 1, fg, bg);
1066 int use_default = use_default_colors() == OK;
1067 for (int bg = 0; bg < 8; bg++) {
1068 for (int fg = 0; fg < 8; fg++) {
1070 init_pair((7 - fg) * 8 + bg,
1071 fg == COLOR_WHITE ? -1 : fg,
1072 bg == COLOR_BLACK ? -1 : bg);
1074 init_pair((7 - fg) * 8 + bg, fg, bg);
1081 int madtty_color_pair(int fg, int bg)
1088 return COLOR_PAIR((fg + 1) * 16 + bg + 1);
1094 return COLOR_PAIR((7 - fg) * 8 + bg);
1097 void madtty_set_handler(madtty_t *t, madtty_handler_t handler)
1099 t->handler = handler;
1102 void madtty_set_data(madtty_t *t, void *data)
1107 void *madtty_get_data(madtty_t *t)