2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2008-2009 Ed Schouten <ed@FreeBSD.org>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 static void teken_subr_cursor_up(teken_t *, unsigned int);
32 static void teken_subr_erase_line(const teken_t *, unsigned int);
33 static void teken_subr_regular_character(teken_t *, teken_char_t);
34 static void teken_subr_reset_to_initial_state(teken_t *);
35 static void teken_subr_save_cursor(teken_t *);
38 teken_tab_isset(const teken_t *t, unsigned int col)
43 return ((col % 8) == 0);
45 b = col / (sizeof(unsigned int) * 8);
46 o = col % (sizeof(unsigned int) * 8);
48 return (t->t_tabstops[b] & (1U << o));
52 teken_tab_clear(teken_t *t, unsigned int col)
59 b = col / (sizeof(unsigned int) * 8);
60 o = col % (sizeof(unsigned int) * 8);
62 t->t_tabstops[b] &= ~(1U << o);
66 teken_tab_set(teken_t *t, unsigned int col)
73 b = col / (sizeof(unsigned int) * 8);
74 o = col % (sizeof(unsigned int) * 8);
76 t->t_tabstops[b] |= 1U << o;
80 teken_tab_default(teken_t *t)
84 memset(t->t_tabstops, 0, T_NUMCOL / 8);
86 for (i = 8; i < T_NUMCOL; i += 8)
91 teken_subr_do_scroll(const teken_t *t, int amount)
96 teken_assert(t->t_cursor.tp_row <= t->t_winsize.tp_row);
97 teken_assert(t->t_scrollreg.ts_end <= t->t_winsize.tp_row);
98 teken_assert(amount != 0);
100 /* Copy existing data 1 line up. */
104 /* Copy existing data up. */
105 if (t->t_scrollreg.ts_begin + amount < t->t_scrollreg.ts_end) {
106 tr.tr_begin.tp_row = t->t_scrollreg.ts_begin + amount;
107 tr.tr_begin.tp_col = 0;
108 tr.tr_end.tp_row = t->t_scrollreg.ts_end;
109 tr.tr_end.tp_col = t->t_winsize.tp_col;
110 tp.tp_row = t->t_scrollreg.ts_begin;
112 teken_funcs_copy(t, &tr, &tp);
114 tr.tr_begin.tp_row = t->t_scrollreg.ts_end - amount;
116 tr.tr_begin.tp_row = t->t_scrollreg.ts_begin;
119 /* Clear the last lines. */
120 tr.tr_begin.tp_col = 0;
121 tr.tr_end.tp_row = t->t_scrollreg.ts_end;
122 tr.tr_end.tp_col = t->t_winsize.tp_col;
123 teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
128 /* Copy existing data down. */
129 if (t->t_scrollreg.ts_begin + amount < t->t_scrollreg.ts_end) {
130 tr.tr_begin.tp_row = t->t_scrollreg.ts_begin;
131 tr.tr_begin.tp_col = 0;
132 tr.tr_end.tp_row = t->t_scrollreg.ts_end - amount;
133 tr.tr_end.tp_col = t->t_winsize.tp_col;
134 tp.tp_row = t->t_scrollreg.ts_begin + amount;
136 teken_funcs_copy(t, &tr, &tp);
138 tr.tr_end.tp_row = t->t_scrollreg.ts_begin + amount;
140 tr.tr_end.tp_row = t->t_scrollreg.ts_end;
143 /* Clear the first lines. */
144 tr.tr_begin.tp_row = t->t_scrollreg.ts_begin;
145 tr.tr_begin.tp_col = 0;
146 tr.tr_end.tp_col = t->t_winsize.tp_col;
147 teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
152 teken_subr_do_cpr(const teken_t *t, unsigned int cmd, char response[16])
156 case 5: /* Operating status. */
157 strcpy(response, "0n");
159 case 6: { /* Cursor position. */
162 len = snprintf(response, 16, "%u;%uR",
163 (t->t_cursor.tp_row - t->t_originreg.ts_begin) + 1,
164 t->t_cursor.tp_col + 1);
170 case 15: /* Printer status. */
171 strcpy(response, "13n");
173 case 25: /* UDK status. */
174 strcpy(response, "20n");
176 case 26: /* Keyboard status. */
177 strcpy(response, "27;1n");
180 teken_printf("Unknown DSR\n");
186 teken_subr_alignment_test(teken_t *t)
190 t->t_cursor.tp_row = t->t_cursor.tp_col = 0;
191 t->t_scrollreg.ts_begin = 0;
192 t->t_scrollreg.ts_end = t->t_winsize.tp_row;
193 t->t_originreg = t->t_scrollreg;
194 t->t_stateflags &= ~(TS_WRAPPED|TS_ORIGIN);
195 teken_funcs_cursor(t);
197 tr.tr_begin.tp_row = 0;
198 tr.tr_begin.tp_col = 0;
199 tr.tr_end = t->t_winsize;
200 teken_funcs_fill(t, &tr, 'E', &t->t_defattr);
204 teken_subr_backspace(teken_t *t)
207 if (t->t_stateflags & TS_CONS25) {
208 if (t->t_cursor.tp_col == 0) {
209 if (t->t_cursor.tp_row == t->t_originreg.ts_begin)
211 t->t_cursor.tp_row--;
212 t->t_cursor.tp_col = t->t_winsize.tp_col - 1;
214 t->t_cursor.tp_col--;
217 if (t->t_cursor.tp_col == 0)
220 t->t_cursor.tp_col--;
221 t->t_stateflags &= ~TS_WRAPPED;
224 teken_funcs_cursor(t);
228 teken_subr_bell(const teken_t *t)
235 teken_subr_carriage_return(teken_t *t)
238 t->t_cursor.tp_col = 0;
239 t->t_stateflags &= ~TS_WRAPPED;
240 teken_funcs_cursor(t);
244 teken_subr_cursor_backward(teken_t *t, unsigned int ncols)
247 if (ncols > t->t_cursor.tp_col)
248 t->t_cursor.tp_col = 0;
250 t->t_cursor.tp_col -= ncols;
251 t->t_stateflags &= ~TS_WRAPPED;
252 teken_funcs_cursor(t);
256 teken_subr_cursor_backward_tabulation(teken_t *t, unsigned int ntabs)
260 /* Stop when we've reached the beginning of the line. */
261 if (t->t_cursor.tp_col == 0)
264 t->t_cursor.tp_col--;
266 /* Tab marker set. */
267 if (teken_tab_isset(t, t->t_cursor.tp_col))
271 teken_funcs_cursor(t);
275 teken_subr_cursor_down(teken_t *t, unsigned int nrows)
278 if (t->t_cursor.tp_row + nrows >= t->t_scrollreg.ts_end)
279 t->t_cursor.tp_row = t->t_scrollreg.ts_end - 1;
281 t->t_cursor.tp_row += nrows;
282 t->t_stateflags &= ~TS_WRAPPED;
283 teken_funcs_cursor(t);
287 teken_subr_cursor_forward(teken_t *t, unsigned int ncols)
290 if (t->t_cursor.tp_col + ncols >= t->t_winsize.tp_col)
291 t->t_cursor.tp_col = t->t_winsize.tp_col - 1;
293 t->t_cursor.tp_col += ncols;
294 t->t_stateflags &= ~TS_WRAPPED;
295 teken_funcs_cursor(t);
299 teken_subr_cursor_forward_tabulation(teken_t *t, unsigned int ntabs)
303 /* Stop when we've reached the end of the line. */
304 if (t->t_cursor.tp_col == t->t_winsize.tp_col - 1)
307 t->t_cursor.tp_col++;
309 /* Tab marker set. */
310 if (teken_tab_isset(t, t->t_cursor.tp_col))
314 teken_funcs_cursor(t);
318 teken_subr_cursor_next_line(teken_t *t, unsigned int ncols)
321 t->t_cursor.tp_col = 0;
322 teken_subr_cursor_down(t, ncols);
326 teken_subr_cursor_position(teken_t *t, unsigned int row, unsigned int col)
329 row = (row - 1) + t->t_originreg.ts_begin;
330 t->t_cursor.tp_row = row < t->t_originreg.ts_end ?
331 row : t->t_originreg.ts_end - 1;
334 t->t_cursor.tp_col = col < t->t_winsize.tp_col ?
335 col : t->t_winsize.tp_col - 1;
337 t->t_stateflags &= ~TS_WRAPPED;
338 teken_funcs_cursor(t);
342 teken_subr_cursor_position_report(const teken_t *t, unsigned int cmd)
344 char response[18] = "\x1B[";
347 len = teken_subr_do_cpr(t, cmd, response + 2);
351 teken_funcs_respond(t, response, len + 2);
355 teken_subr_cursor_previous_line(teken_t *t, unsigned int ncols)
358 t->t_cursor.tp_col = 0;
359 teken_subr_cursor_up(t, ncols);
363 teken_subr_cursor_up(teken_t *t, unsigned int nrows)
366 if (t->t_scrollreg.ts_begin + nrows >= t->t_cursor.tp_row)
367 t->t_cursor.tp_row = t->t_scrollreg.ts_begin;
369 t->t_cursor.tp_row -= nrows;
370 t->t_stateflags &= ~TS_WRAPPED;
371 teken_funcs_cursor(t);
375 teken_subr_set_cursor_style(teken_t *t __unused, unsigned int style __unused)
382 * Set cursor style (DECSCUSR), VT520.
383 * Ps = 0 -> blinking block.
384 * Ps = 1 -> blinking block (default).
385 * Ps = 2 -> steady block.
386 * Ps = 3 -> blinking underline.
387 * Ps = 4 -> steady underline.
388 * Ps = 5 -> blinking bar (xterm).
389 * Ps = 6 -> steady bar (xterm).
394 teken_subr_delete_character(const teken_t *t, unsigned int ncols)
398 tr.tr_begin.tp_row = t->t_cursor.tp_row;
399 tr.tr_end.tp_row = t->t_cursor.tp_row + 1;
400 tr.tr_end.tp_col = t->t_winsize.tp_col;
402 if (t->t_cursor.tp_col + ncols >= t->t_winsize.tp_col) {
403 tr.tr_begin.tp_col = t->t_cursor.tp_col;
405 /* Copy characters to the left. */
406 tr.tr_begin.tp_col = t->t_cursor.tp_col + ncols;
407 teken_funcs_copy(t, &tr, &t->t_cursor);
409 tr.tr_begin.tp_col = t->t_winsize.tp_col - ncols;
412 /* Blank trailing columns. */
413 teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
417 teken_subr_delete_line(const teken_t *t, unsigned int nrows)
421 /* Ignore if outside scrolling region. */
422 if (t->t_cursor.tp_row < t->t_scrollreg.ts_begin ||
423 t->t_cursor.tp_row >= t->t_scrollreg.ts_end)
426 tr.tr_begin.tp_col = 0;
427 tr.tr_end.tp_row = t->t_scrollreg.ts_end;
428 tr.tr_end.tp_col = t->t_winsize.tp_col;
430 if (t->t_cursor.tp_row + nrows >= t->t_scrollreg.ts_end) {
431 tr.tr_begin.tp_row = t->t_cursor.tp_row;
436 tr.tr_begin.tp_row = t->t_cursor.tp_row + nrows;
437 tp.tp_row = t->t_cursor.tp_row;
439 teken_funcs_copy(t, &tr, &tp);
441 tr.tr_begin.tp_row = t->t_scrollreg.ts_end - nrows;
444 /* Blank trailing rows. */
445 teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
449 teken_subr_device_control_string(teken_t *t)
452 teken_printf("Unsupported device control string\n");
453 t->t_stateflags |= TS_INSTRING;
457 teken_subr_device_status_report(const teken_t *t, unsigned int cmd)
459 char response[19] = "\x1B[?";
462 len = teken_subr_do_cpr(t, cmd, response + 3);
466 teken_funcs_respond(t, response, len + 3);
470 teken_subr_double_height_double_width_line_top(const teken_t *t)
474 teken_printf("double height double width top\n");
478 teken_subr_double_height_double_width_line_bottom(const teken_t *t)
482 teken_printf("double height double width bottom\n");
486 teken_subr_erase_character(const teken_t *t, unsigned int ncols)
490 tr.tr_begin = t->t_cursor;
491 tr.tr_end.tp_row = t->t_cursor.tp_row + 1;
493 if (t->t_cursor.tp_col + ncols >= t->t_winsize.tp_col)
494 tr.tr_end.tp_col = t->t_winsize.tp_col;
496 tr.tr_end.tp_col = t->t_cursor.tp_col + ncols;
498 teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
502 teken_subr_erase_display(const teken_t *t, unsigned int mode)
506 r.tr_begin.tp_col = 0;
507 r.tr_end.tp_col = t->t_winsize.tp_col;
510 case 1: /* Erase from the top to the cursor. */
511 teken_subr_erase_line(t, 1);
513 /* Erase lines above. */
514 if (t->t_cursor.tp_row == 0)
516 r.tr_begin.tp_row = 0;
517 r.tr_end.tp_row = t->t_cursor.tp_row;
519 case 2: /* Erase entire display. */
520 r.tr_begin.tp_row = 0;
521 r.tr_end.tp_row = t->t_winsize.tp_row;
523 default: /* Erase from cursor to the bottom. */
524 teken_subr_erase_line(t, 0);
526 /* Erase lines below. */
527 if (t->t_cursor.tp_row == t->t_winsize.tp_row - 1)
529 r.tr_begin.tp_row = t->t_cursor.tp_row + 1;
530 r.tr_end.tp_row = t->t_winsize.tp_row;
534 teken_funcs_fill(t, &r, BLANK, &t->t_curattr);
538 teken_subr_erase_line(const teken_t *t, unsigned int mode)
542 r.tr_begin.tp_row = t->t_cursor.tp_row;
543 r.tr_end.tp_row = t->t_cursor.tp_row + 1;
546 case 1: /* Erase from the beginning of the line to the cursor. */
547 r.tr_begin.tp_col = 0;
548 r.tr_end.tp_col = t->t_cursor.tp_col + 1;
550 case 2: /* Erase entire line. */
551 r.tr_begin.tp_col = 0;
552 r.tr_end.tp_col = t->t_winsize.tp_col;
554 default: /* Erase from cursor to the end of the line. */
555 r.tr_begin.tp_col = t->t_cursor.tp_col;
556 r.tr_end.tp_col = t->t_winsize.tp_col;
560 teken_funcs_fill(t, &r, BLANK, &t->t_curattr);
564 teken_subr_g0_scs_special_graphics(teken_t *t)
567 t->t_scs[0] = teken_scs_special_graphics;
571 teken_subr_g0_scs_uk_national(teken_t *t)
574 t->t_scs[0] = teken_scs_uk_national;
578 teken_subr_g0_scs_us_ascii(teken_t *t)
581 t->t_scs[0] = teken_scs_us_ascii;
585 teken_subr_g1_scs_special_graphics(teken_t *t)
588 t->t_scs[1] = teken_scs_special_graphics;
592 teken_subr_g1_scs_uk_national(teken_t *t)
595 t->t_scs[1] = teken_scs_uk_national;
599 teken_subr_g1_scs_us_ascii(teken_t *t)
602 t->t_scs[1] = teken_scs_us_ascii;
606 teken_subr_horizontal_position_absolute(teken_t *t, unsigned int col)
610 t->t_cursor.tp_col = col < t->t_winsize.tp_col ?
611 col : t->t_winsize.tp_col - 1;
613 t->t_stateflags &= ~TS_WRAPPED;
614 teken_funcs_cursor(t);
618 teken_subr_horizontal_tab(teken_t *t)
621 teken_subr_cursor_forward_tabulation(t, 1);
625 teken_subr_horizontal_tab_set(teken_t *t)
628 teken_tab_set(t, t->t_cursor.tp_col);
632 teken_subr_index(teken_t *t)
635 if (t->t_cursor.tp_row < t->t_scrollreg.ts_end - 1) {
636 t->t_cursor.tp_row++;
637 t->t_stateflags &= ~TS_WRAPPED;
638 teken_funcs_cursor(t);
640 teken_subr_do_scroll(t, 1);
645 teken_subr_insert_character(const teken_t *t, unsigned int ncols)
649 tr.tr_begin = t->t_cursor;
650 tr.tr_end.tp_row = t->t_cursor.tp_row + 1;
652 if (t->t_cursor.tp_col + ncols >= t->t_winsize.tp_col) {
653 tr.tr_end.tp_col = t->t_winsize.tp_col;
657 /* Copy characters to the right. */
658 tr.tr_end.tp_col = t->t_winsize.tp_col - ncols;
659 tp.tp_row = t->t_cursor.tp_row;
660 tp.tp_col = t->t_cursor.tp_col + ncols;
661 teken_funcs_copy(t, &tr, &tp);
663 tr.tr_end.tp_col = t->t_cursor.tp_col + ncols;
666 /* Blank current location. */
667 teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
671 teken_subr_insert_line(const teken_t *t, unsigned int nrows)
675 /* Ignore if outside scrolling region. */
676 if (t->t_cursor.tp_row < t->t_scrollreg.ts_begin ||
677 t->t_cursor.tp_row >= t->t_scrollreg.ts_end)
680 tr.tr_begin.tp_row = t->t_cursor.tp_row;
681 tr.tr_begin.tp_col = 0;
682 tr.tr_end.tp_col = t->t_winsize.tp_col;
684 if (t->t_cursor.tp_row + nrows >= t->t_scrollreg.ts_end) {
685 tr.tr_end.tp_row = t->t_scrollreg.ts_end;
689 /* Copy lines down. */
690 tr.tr_end.tp_row = t->t_scrollreg.ts_end - nrows;
691 tp.tp_row = t->t_cursor.tp_row + nrows;
693 teken_funcs_copy(t, &tr, &tp);
695 tr.tr_end.tp_row = t->t_cursor.tp_row + nrows;
698 /* Blank current location. */
699 teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
703 teken_subr_keypad_application_mode(const teken_t *t)
706 teken_funcs_param(t, TP_KEYPADAPP, 1);
710 teken_subr_keypad_numeric_mode(const teken_t *t)
713 teken_funcs_param(t, TP_KEYPADAPP, 0);
717 teken_subr_newline(teken_t *t)
720 t->t_cursor.tp_row++;
722 if (t->t_cursor.tp_row >= t->t_scrollreg.ts_end) {
723 teken_subr_do_scroll(t, 1);
724 t->t_cursor.tp_row = t->t_scrollreg.ts_end - 1;
727 t->t_stateflags &= ~TS_WRAPPED;
728 teken_funcs_cursor(t);
732 teken_subr_newpage(teken_t *t)
735 if (t->t_stateflags & TS_CONS25) {
739 tr.tr_begin.tp_row = t->t_originreg.ts_begin;
740 tr.tr_begin.tp_col = 0;
741 tr.tr_end.tp_row = t->t_originreg.ts_end;
742 tr.tr_end.tp_col = t->t_winsize.tp_col;
743 teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
745 /* Cursor at top left. */
746 t->t_cursor.tp_row = t->t_originreg.ts_begin;
747 t->t_cursor.tp_col = 0;
748 t->t_stateflags &= ~TS_WRAPPED;
749 teken_funcs_cursor(t);
751 teken_subr_newline(t);
756 teken_subr_next_line(teken_t *t)
759 t->t_cursor.tp_col = 0;
760 teken_subr_newline(t);
764 teken_subr_operating_system_command(teken_t *t)
767 teken_printf("Unsupported operating system command\n");
768 t->t_stateflags |= TS_INSTRING;
772 teken_subr_pan_down(const teken_t *t, unsigned int nrows)
775 teken_subr_do_scroll(t, (int)nrows);
779 teken_subr_pan_up(const teken_t *t, unsigned int nrows)
782 teken_subr_do_scroll(t, -(int)nrows);
786 teken_subr_primary_device_attributes(const teken_t *t, unsigned int request)
790 const char response[] = "\x1B[?1;2c";
792 teken_funcs_respond(t, response, sizeof response - 1);
794 teken_printf("Unknown DA1\n");
799 teken_subr_do_putchar(teken_t *t, const teken_pos_t *tp, teken_char_t c,
804 if (t->t_stateflags & TS_INSERT &&
805 tp->tp_col < t->t_winsize.tp_col - width) {
809 /* Insert mode. Move existing characters to the right. */
811 ctr.tr_end.tp_row = tp->tp_row + 1;
812 ctr.tr_end.tp_col = t->t_winsize.tp_col - width;
813 ctp.tp_row = tp->tp_row;
814 ctp.tp_col = tp->tp_col + width;
815 teken_funcs_copy(t, &ctr, &ctp);
818 teken_funcs_putchar(t, tp, c, &t->t_curattr);
820 if (width == 2 && tp->tp_col + 1 < t->t_winsize.tp_col) {
824 /* Print second half of CJK fullwidth character. */
825 tp2.tp_row = tp->tp_row;
826 tp2.tp_col = tp->tp_col + 1;
828 attr.ta_format |= TF_CJK_RIGHT;
829 teken_funcs_putchar(t, &tp2, c, &attr);
834 teken_subr_regular_character(teken_t *t, teken_char_t c)
838 if (t->t_stateflags & TS_8BIT) {
839 if (!(t->t_stateflags & TS_CONS25) && (c <= 0x1b || c == 0x7f))
841 c = teken_scs_process(t, c);
844 c = teken_scs_process(t, c);
845 width = teken_wcwidth(c);
846 /* XXX: Don't process zero-width characters yet. */
851 if (t->t_stateflags & TS_CONS25) {
852 teken_subr_do_putchar(t, &t->t_cursor, c, width);
853 t->t_cursor.tp_col += width;
855 if (t->t_cursor.tp_col >= t->t_winsize.tp_col) {
856 if (t->t_cursor.tp_row == t->t_scrollreg.ts_end - 1) {
857 /* Perform scrolling. */
858 teken_subr_do_scroll(t, 1);
860 /* No scrolling needed. */
861 if (t->t_cursor.tp_row <
862 t->t_winsize.tp_row - 1)
863 t->t_cursor.tp_row++;
865 t->t_cursor.tp_col = 0;
867 } else if (t->t_stateflags & TS_AUTOWRAP &&
868 ((t->t_stateflags & TS_WRAPPED &&
869 t->t_cursor.tp_col + 1 == t->t_winsize.tp_col) ||
870 t->t_cursor.tp_col + width > t->t_winsize.tp_col)) {
874 * Perform line wrapping, if:
875 * - Autowrapping is enabled, and
876 * - We're in the wrapped state at the last column, or
877 * - The character to be printed does not fit anymore.
879 if (t->t_cursor.tp_row == t->t_scrollreg.ts_end - 1) {
880 /* Perform scrolling. */
881 teken_subr_do_scroll(t, 1);
882 tp.tp_row = t->t_scrollreg.ts_end - 1;
884 /* No scrolling needed. */
885 tp.tp_row = t->t_cursor.tp_row + 1;
886 if (tp.tp_row == t->t_winsize.tp_row) {
888 * Corner case: regular character
889 * outside scrolling region, but at the
890 * bottom of the screen.
892 teken_subr_do_putchar(t, &t->t_cursor,
899 teken_subr_do_putchar(t, &tp, c, width);
901 t->t_cursor.tp_row = tp.tp_row;
902 t->t_cursor.tp_col = width;
903 t->t_stateflags &= ~TS_WRAPPED;
905 /* No line wrapping needed. */
906 teken_subr_do_putchar(t, &t->t_cursor, c, width);
907 t->t_cursor.tp_col += width;
909 if (t->t_cursor.tp_col >= t->t_winsize.tp_col) {
910 t->t_stateflags |= TS_WRAPPED;
911 t->t_cursor.tp_col = t->t_winsize.tp_col - 1;
913 t->t_stateflags &= ~TS_WRAPPED;
917 teken_funcs_cursor(t);
921 teken_subr_reset_dec_mode(teken_t *t, unsigned int cmd)
925 case 1: /* Cursor keys mode. */
926 t->t_stateflags &= ~TS_CURSORKEYS;
928 case 2: /* DECANM: ANSI/VT52 mode. */
929 teken_printf("DECRST VT52\n");
931 case 3: /* 132 column mode. */
932 teken_funcs_param(t, TP_132COLS, 0);
933 teken_subr_reset_to_initial_state(t);
935 case 5: /* Inverse video. */
936 teken_printf("DECRST inverse video\n");
938 case 6: /* Origin mode. */
939 t->t_stateflags &= ~TS_ORIGIN;
940 t->t_originreg.ts_begin = 0;
941 t->t_originreg.ts_end = t->t_winsize.tp_row;
942 t->t_cursor.tp_row = t->t_cursor.tp_col = 0;
943 t->t_stateflags &= ~TS_WRAPPED;
944 teken_funcs_cursor(t);
946 case 7: /* Autowrap mode. */
947 t->t_stateflags &= ~TS_AUTOWRAP;
949 case 8: /* Autorepeat mode. */
950 teken_funcs_param(t, TP_AUTOREPEAT, 0);
952 case 25: /* Hide cursor. */
953 teken_funcs_param(t, TP_SHOWCURSOR, 0);
955 case 40: /* Disallow 132 columns. */
956 teken_printf("DECRST allow 132\n");
958 case 45: /* Disable reverse wraparound. */
959 teken_printf("DECRST reverse wraparound\n");
961 case 47: /* Switch to alternate buffer. */
962 teken_printf("Switch to alternate buffer\n");
964 case 1000: /* Mouse input. */
965 teken_funcs_param(t, TP_MOUSE, 0);
968 teken_printf("Unknown DECRST: %u\n", cmd);
973 teken_subr_reset_mode(teken_t *t, unsigned int cmd)
978 t->t_stateflags &= ~TS_INSERT;
981 teken_printf("Unknown reset mode: %u\n", cmd);
986 teken_subr_do_resize(teken_t *t)
989 t->t_scrollreg.ts_begin = 0;
990 t->t_scrollreg.ts_end = t->t_winsize.tp_row;
991 t->t_originreg = t->t_scrollreg;
995 teken_subr_do_reset(teken_t *t)
998 t->t_curattr = t->t_defattr;
999 t->t_cursor.tp_row = t->t_cursor.tp_col = 0;
1000 t->t_scrollreg.ts_begin = 0;
1001 t->t_scrollreg.ts_end = t->t_winsize.tp_row;
1002 t->t_originreg = t->t_scrollreg;
1003 t->t_stateflags &= TS_8BIT | TS_CONS25 | TS_CONS25KEYS;
1004 t->t_stateflags |= TS_AUTOWRAP;
1006 t->t_scs[0] = teken_scs_us_ascii;
1007 t->t_scs[1] = teken_scs_us_ascii;
1010 teken_subr_save_cursor(t);
1011 teken_tab_default(t);
1015 teken_subr_reset_to_initial_state(teken_t *t)
1018 teken_subr_do_reset(t);
1019 teken_subr_erase_display(t, 2);
1020 teken_funcs_param(t, TP_SHOWCURSOR, 1);
1021 teken_funcs_cursor(t);
1025 teken_subr_restore_cursor(teken_t *t)
1028 t->t_cursor = t->t_saved_cursor;
1029 t->t_curattr = t->t_saved_curattr;
1030 t->t_scs[t->t_curscs] = t->t_saved_curscs;
1031 t->t_stateflags &= ~TS_WRAPPED;
1033 /* Get out of origin mode when the cursor is moved outside. */
1034 if (t->t_cursor.tp_row < t->t_originreg.ts_begin ||
1035 t->t_cursor.tp_row >= t->t_originreg.ts_end) {
1036 t->t_stateflags &= ~TS_ORIGIN;
1037 t->t_originreg.ts_begin = 0;
1038 t->t_originreg.ts_end = t->t_winsize.tp_row;
1041 teken_funcs_cursor(t);
1045 teken_subr_reverse_index(teken_t *t)
1048 if (t->t_cursor.tp_row > t->t_scrollreg.ts_begin) {
1049 t->t_cursor.tp_row--;
1050 t->t_stateflags &= ~TS_WRAPPED;
1051 teken_funcs_cursor(t);
1053 teken_subr_do_scroll(t, -1);
1058 teken_subr_save_cursor(teken_t *t)
1061 t->t_saved_cursor = t->t_cursor;
1062 t->t_saved_curattr = t->t_curattr;
1063 t->t_saved_curscs = t->t_scs[t->t_curscs];
1067 teken_subr_secondary_device_attributes(const teken_t *t, unsigned int request)
1071 const char response[] = "\x1B[>0;10;0c";
1072 teken_funcs_respond(t, response, sizeof response - 1);
1074 teken_printf("Unknown DA2\n");
1079 teken_subr_set_dec_mode(teken_t *t, unsigned int cmd)
1083 case 1: /* Cursor keys mode. */
1084 t->t_stateflags |= TS_CURSORKEYS;
1086 case 2: /* DECANM: ANSI/VT52 mode. */
1087 teken_printf("DECSET VT52\n");
1089 case 3: /* 132 column mode. */
1090 teken_funcs_param(t, TP_132COLS, 1);
1091 teken_subr_reset_to_initial_state(t);
1093 case 5: /* Inverse video. */
1094 teken_printf("DECSET inverse video\n");
1096 case 6: /* Origin mode. */
1097 t->t_stateflags |= TS_ORIGIN;
1098 t->t_originreg = t->t_scrollreg;
1099 t->t_cursor.tp_row = t->t_scrollreg.ts_begin;
1100 t->t_cursor.tp_col = 0;
1101 t->t_stateflags &= ~TS_WRAPPED;
1102 teken_funcs_cursor(t);
1104 case 7: /* Autowrap mode. */
1105 t->t_stateflags |= TS_AUTOWRAP;
1107 case 8: /* Autorepeat mode. */
1108 teken_funcs_param(t, TP_AUTOREPEAT, 1);
1110 case 25: /* Display cursor. */
1111 teken_funcs_param(t, TP_SHOWCURSOR, 1);
1113 case 40: /* Allow 132 columns. */
1114 teken_printf("DECSET allow 132\n");
1116 case 45: /* Enable reverse wraparound. */
1117 teken_printf("DECSET reverse wraparound\n");
1119 case 47: /* Switch to alternate buffer. */
1120 teken_printf("Switch away from alternate buffer\n");
1122 case 1000: /* Mouse input. */
1123 teken_funcs_param(t, TP_MOUSE, 1);
1126 teken_printf("Unknown DECSET: %u\n", cmd);
1131 teken_subr_set_mode(teken_t *t, unsigned int cmd)
1136 teken_printf("Insert mode\n");
1137 t->t_stateflags |= TS_INSERT;
1140 teken_printf("Unknown set mode: %u\n", cmd);
1145 teken_subr_set_graphic_rendition(teken_t *t, unsigned int ncmds,
1146 const unsigned int cmds[])
1150 /* No attributes means reset. */
1152 t->t_curattr = t->t_defattr;
1156 for (i = 0; i < ncmds; i++) {
1160 case 0: /* Reset. */
1161 t->t_curattr = t->t_defattr;
1164 t->t_curattr.ta_format |= TF_BOLD;
1166 case 4: /* Underline. */
1167 t->t_curattr.ta_format |= TF_UNDERLINE;
1169 case 5: /* Blink. */
1170 t->t_curattr.ta_format |= TF_BLINK;
1172 case 7: /* Reverse. */
1173 t->t_curattr.ta_format |= TF_REVERSE;
1175 case 22: /* Remove bold. */
1176 t->t_curattr.ta_format &= ~TF_BOLD;
1178 case 24: /* Remove underline. */
1179 t->t_curattr.ta_format &= ~TF_UNDERLINE;
1181 case 25: /* Remove blink. */
1182 t->t_curattr.ta_format &= ~TF_BLINK;
1184 case 27: /* Remove reverse. */
1185 t->t_curattr.ta_format &= ~TF_REVERSE;
1187 case 30: /* Set foreground color: black */
1188 case 31: /* Set foreground color: red */
1189 case 32: /* Set foreground color: green */
1190 case 33: /* Set foreground color: brown */
1191 case 34: /* Set foreground color: blue */
1192 case 35: /* Set foreground color: magenta */
1193 case 36: /* Set foreground color: cyan */
1194 case 37: /* Set foreground color: white */
1195 t->t_curattr.ta_fgcolor = n - 30;
1197 case 38: /* Set foreground color: 256 color mode */
1198 if (i + 2 >= ncmds || cmds[i + 1] != 5)
1200 t->t_curattr.ta_fgcolor = cmds[i + 2];
1203 case 39: /* Set default foreground color. */
1204 t->t_curattr.ta_fgcolor = t->t_defattr.ta_fgcolor;
1206 case 40: /* Set background color: black */
1207 case 41: /* Set background color: red */
1208 case 42: /* Set background color: green */
1209 case 43: /* Set background color: brown */
1210 case 44: /* Set background color: blue */
1211 case 45: /* Set background color: magenta */
1212 case 46: /* Set background color: cyan */
1213 case 47: /* Set background color: white */
1214 t->t_curattr.ta_bgcolor = n - 40;
1216 case 48: /* Set background color: 256 color mode */
1217 if (i + 2 >= ncmds || cmds[i + 1] != 5)
1219 t->t_curattr.ta_bgcolor = cmds[i + 2];
1222 case 49: /* Set default background color. */
1223 t->t_curattr.ta_bgcolor = t->t_defattr.ta_bgcolor;
1225 case 90: /* Set bright foreground color: black */
1226 case 91: /* Set bright foreground color: red */
1227 case 92: /* Set bright foreground color: green */
1228 case 93: /* Set bright foreground color: brown */
1229 case 94: /* Set bright foreground color: blue */
1230 case 95: /* Set bright foreground color: magenta */
1231 case 96: /* Set bright foreground color: cyan */
1232 case 97: /* Set bright foreground color: white */
1233 t->t_curattr.ta_fgcolor = (n - 90) + 8;
1235 case 100: /* Set bright background color: black */
1236 case 101: /* Set bright background color: red */
1237 case 102: /* Set bright background color: green */
1238 case 103: /* Set bright background color: brown */
1239 case 104: /* Set bright background color: blue */
1240 case 105: /* Set bright background color: magenta */
1241 case 106: /* Set bright background color: cyan */
1242 case 107: /* Set bright background color: white */
1243 t->t_curattr.ta_bgcolor = (n - 100) + 8;
1246 teken_printf("unsupported attribute %u\n", n);
1252 teken_subr_set_top_and_bottom_margins(teken_t *t, unsigned int top,
1253 unsigned int bottom)
1256 /* Adjust top row number. */
1259 /* Adjust bottom row number. */
1260 if (bottom == 0 || bottom > t->t_winsize.tp_row)
1261 bottom = t->t_winsize.tp_row;
1263 /* Invalid arguments. */
1264 if (top >= bottom - 1) {
1266 bottom = t->t_winsize.tp_row;
1269 /* Apply scrolling region. */
1270 t->t_scrollreg.ts_begin = top;
1271 t->t_scrollreg.ts_end = bottom;
1272 if (t->t_stateflags & TS_ORIGIN)
1273 t->t_originreg = t->t_scrollreg;
1275 /* Home cursor to the top left of the scrolling region. */
1276 t->t_cursor.tp_row = t->t_originreg.ts_begin;
1277 t->t_cursor.tp_col = 0;
1278 t->t_stateflags &= ~TS_WRAPPED;
1279 teken_funcs_cursor(t);
1283 teken_subr_single_height_double_width_line(const teken_t *t)
1287 teken_printf("single height double width???\n");
1291 teken_subr_single_height_single_width_line(const teken_t *t)
1295 teken_printf("single height single width???\n");
1299 teken_subr_string_terminator(const teken_t *t)
1304 * Strings are already terminated in teken_input_char() when ^[
1310 teken_subr_tab_clear(teken_t *t, unsigned int cmd)
1315 teken_tab_clear(t, t->t_cursor.tp_col);
1318 memset(t->t_tabstops, 0, T_NUMCOL / 8);
1326 teken_subr_vertical_position_absolute(teken_t *t, unsigned int row)
1329 row = (row - 1) + t->t_originreg.ts_begin;
1330 t->t_cursor.tp_row = row < t->t_originreg.ts_end ?
1331 row : t->t_originreg.ts_end - 1;
1333 t->t_stateflags &= ~TS_WRAPPED;
1334 teken_funcs_cursor(t);
1338 teken_subr_repeat_last_graphic_char(teken_t *t, unsigned int rpts)
1340 unsigned int max_repetitions;
1342 max_repetitions = t->t_winsize.tp_row * t->t_winsize.tp_col;
1343 if (rpts > max_repetitions)
1344 rpts = max_repetitions;
1345 for (; t->t_last != 0 && rpts > 0; rpts--)
1346 teken_subr_regular_character(t, t->t_last);