2 * Copyright (c) 2008-2009 Ed Schouten <ed@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 static void teken_subr_cursor_up(teken_t *, unsigned int);
30 static void teken_subr_erase_line(teken_t *, unsigned int);
31 static void teken_subr_regular_character(teken_t *, teken_char_t);
32 static void teken_subr_reset_to_initial_state(teken_t *);
33 static void teken_subr_save_cursor(teken_t *);
36 teken_tab_isset(teken_t *t, unsigned int col)
41 return ((col % 8) == 0);
43 b = col / (sizeof(unsigned int) * 8);
44 o = col % (sizeof(unsigned int) * 8);
46 return (t->t_tabstops[b] & (1 << o));
50 teken_tab_clear(teken_t *t, unsigned int col)
57 b = col / (sizeof(unsigned int) * 8);
58 o = col % (sizeof(unsigned int) * 8);
60 t->t_tabstops[b] &= ~(1 << o);
64 teken_tab_set(teken_t *t, unsigned int col)
71 b = col / (sizeof(unsigned int) * 8);
72 o = col % (sizeof(unsigned int) * 8);
74 t->t_tabstops[b] |= 1 << o;
78 teken_tab_default(teken_t *t)
82 memset(&t->t_tabstops, 0, T_NUMCOL / 8);
84 for (i = 8; i < T_NUMCOL; i += 8)
89 teken_subr_do_scroll(teken_t *t, int amount)
94 teken_assert(t->t_cursor.tp_row <= t->t_winsize.tp_row);
95 teken_assert(t->t_scrollreg.ts_end <= t->t_winsize.tp_row);
96 teken_assert(amount != 0);
98 /* Copy existing data 1 line up. */
102 /* Copy existing data up. */
103 if (t->t_scrollreg.ts_begin + amount < t->t_scrollreg.ts_end) {
104 tr.tr_begin.tp_row = t->t_scrollreg.ts_begin + amount;
105 tr.tr_begin.tp_col = 0;
106 tr.tr_end.tp_row = t->t_scrollreg.ts_end;
107 tr.tr_end.tp_col = t->t_winsize.tp_col;
108 tp.tp_row = t->t_scrollreg.ts_begin;
110 teken_funcs_copy(t, &tr, &tp);
112 tr.tr_begin.tp_row = t->t_scrollreg.ts_end - amount;
114 tr.tr_begin.tp_row = t->t_scrollreg.ts_begin;
117 /* Clear the last lines. */
118 tr.tr_begin.tp_col = 0;
119 tr.tr_end.tp_row = t->t_scrollreg.ts_end;
120 tr.tr_end.tp_col = t->t_winsize.tp_col;
121 teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
126 /* Copy existing data down. */
127 if (t->t_scrollreg.ts_begin + amount < t->t_scrollreg.ts_end) {
128 tr.tr_begin.tp_row = t->t_scrollreg.ts_begin;
129 tr.tr_begin.tp_col = 0;
130 tr.tr_end.tp_row = t->t_scrollreg.ts_end - amount;
131 tr.tr_end.tp_col = t->t_winsize.tp_col;
132 tp.tp_row = t->t_scrollreg.ts_begin + amount;
134 teken_funcs_copy(t, &tr, &tp);
136 tr.tr_end.tp_row = t->t_scrollreg.ts_begin + amount;
138 tr.tr_end.tp_row = t->t_scrollreg.ts_end;
141 /* Clear the first lines. */
142 tr.tr_begin.tp_row = t->t_scrollreg.ts_begin;
143 tr.tr_begin.tp_col = 0;
144 tr.tr_end.tp_col = t->t_winsize.tp_col;
145 teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
150 teken_subr_do_cpr(teken_t *t, unsigned int cmd, char response[16])
154 case 5: /* Operating status. */
155 strcpy(response, "0n");
157 case 6: { /* Cursor position. */
160 len = snprintf(response, 16, "%u;%uR",
161 (t->t_cursor.tp_row - t->t_originreg.ts_begin) + 1,
162 t->t_cursor.tp_col + 1);
168 case 15: /* Printer status. */
169 strcpy(response, "13n");
171 case 25: /* UDK status. */
172 strcpy(response, "20n");
174 case 26: /* Keyboard status. */
175 strcpy(response, "27;1n");
178 teken_printf("Unknown DSR\n");
184 teken_subr_alignment_test(teken_t *t)
188 t->t_cursor.tp_row = t->t_cursor.tp_col = 0;
189 t->t_scrollreg.ts_begin = 0;
190 t->t_scrollreg.ts_end = t->t_winsize.tp_row;
191 t->t_originreg = t->t_scrollreg;
192 t->t_stateflags &= ~(TS_WRAPPED|TS_ORIGIN);
193 teken_funcs_cursor(t);
195 tr.tr_begin.tp_row = 0;
196 tr.tr_begin.tp_col = 0;
197 tr.tr_end = t->t_winsize;
198 teken_funcs_fill(t, &tr, 'E', &t->t_defattr);
202 teken_subr_backspace(teken_t *t)
205 if (t->t_stateflags & TS_CONS25) {
206 if (t->t_cursor.tp_col == 0) {
207 if (t->t_cursor.tp_row == t->t_originreg.ts_begin)
209 t->t_cursor.tp_row--;
210 t->t_cursor.tp_col = t->t_winsize.tp_col - 1;
212 t->t_cursor.tp_col--;
215 if (t->t_cursor.tp_col == 0)
218 t->t_cursor.tp_col--;
219 t->t_stateflags &= ~TS_WRAPPED;
222 teken_funcs_cursor(t);
226 teken_subr_bell(teken_t *t)
233 teken_subr_carriage_return(teken_t *t)
236 t->t_cursor.tp_col = 0;
237 t->t_stateflags &= ~TS_WRAPPED;
238 teken_funcs_cursor(t);
242 teken_subr_cursor_backward(teken_t *t, unsigned int ncols)
245 if (ncols > t->t_cursor.tp_col)
246 t->t_cursor.tp_col = 0;
248 t->t_cursor.tp_col -= ncols;
249 t->t_stateflags &= ~TS_WRAPPED;
250 teken_funcs_cursor(t);
254 teken_subr_cursor_backward_tabulation(teken_t *t, unsigned int ntabs)
258 /* Stop when we've reached the beginning of the line. */
259 if (t->t_cursor.tp_col == 0)
262 t->t_cursor.tp_col--;
264 /* Tab marker set. */
265 if (teken_tab_isset(t, t->t_cursor.tp_col))
269 teken_funcs_cursor(t);
273 teken_subr_cursor_down(teken_t *t, unsigned int nrows)
276 if (t->t_cursor.tp_row + nrows >= t->t_scrollreg.ts_end)
277 t->t_cursor.tp_row = t->t_scrollreg.ts_end - 1;
279 t->t_cursor.tp_row += nrows;
280 t->t_stateflags &= ~TS_WRAPPED;
281 teken_funcs_cursor(t);
285 teken_subr_cursor_forward(teken_t *t, unsigned int ncols)
288 if (t->t_cursor.tp_col + ncols >= t->t_winsize.tp_col)
289 t->t_cursor.tp_col = t->t_winsize.tp_col - 1;
291 t->t_cursor.tp_col += ncols;
292 t->t_stateflags &= ~TS_WRAPPED;
293 teken_funcs_cursor(t);
297 teken_subr_cursor_forward_tabulation(teken_t *t, unsigned int ntabs)
301 /* Stop when we've reached the end of the line. */
302 if (t->t_cursor.tp_col == t->t_winsize.tp_col - 1)
305 t->t_cursor.tp_col++;
307 /* Tab marker set. */
308 if (teken_tab_isset(t, t->t_cursor.tp_col))
312 teken_funcs_cursor(t);
316 teken_subr_cursor_next_line(teken_t *t, unsigned int ncols)
319 t->t_cursor.tp_col = 0;
320 teken_subr_cursor_down(t, ncols);
324 teken_subr_cursor_position(teken_t *t, unsigned int row, unsigned int col)
327 t->t_cursor.tp_row = t->t_originreg.ts_begin + row - 1;
328 if (row >= t->t_originreg.ts_end)
329 t->t_cursor.tp_row = t->t_originreg.ts_end - 1;
331 t->t_cursor.tp_col = col - 1;
332 if (t->t_cursor.tp_col >= t->t_winsize.tp_col)
333 t->t_cursor.tp_col = t->t_winsize.tp_col - 1;
335 t->t_stateflags &= ~TS_WRAPPED;
336 teken_funcs_cursor(t);
340 teken_subr_cursor_position_report(teken_t *t, unsigned int cmd)
342 char response[18] = "\x1B[";
345 len = teken_subr_do_cpr(t, cmd, response + 2);
349 teken_funcs_respond(t, response, len + 2);
353 teken_subr_cursor_previous_line(teken_t *t, unsigned int ncols)
356 t->t_cursor.tp_col = 0;
357 teken_subr_cursor_up(t, ncols);
361 teken_subr_cursor_up(teken_t *t, unsigned int nrows)
364 if (t->t_scrollreg.ts_begin + nrows >= t->t_cursor.tp_row)
365 t->t_cursor.tp_row = t->t_scrollreg.ts_begin;
367 t->t_cursor.tp_row -= nrows;
368 t->t_stateflags &= ~TS_WRAPPED;
369 teken_funcs_cursor(t);
373 teken_subr_delete_character(teken_t *t, unsigned int ncols)
377 tr.tr_begin.tp_row = t->t_cursor.tp_row;
378 tr.tr_end.tp_row = t->t_cursor.tp_row + 1;
379 tr.tr_end.tp_col = t->t_winsize.tp_col;
381 if (t->t_cursor.tp_col + ncols >= t->t_winsize.tp_col) {
382 tr.tr_begin.tp_col = t->t_cursor.tp_col;
384 /* Copy characters to the left. */
385 tr.tr_begin.tp_col = t->t_cursor.tp_col + ncols;
386 teken_funcs_copy(t, &tr, &t->t_cursor);
388 tr.tr_begin.tp_col = t->t_winsize.tp_col - ncols;
391 /* Blank trailing columns. */
392 teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
396 teken_subr_delete_line(teken_t *t, unsigned int nrows)
400 /* Ignore if outside scrolling region. */
401 if (t->t_cursor.tp_row < t->t_scrollreg.ts_begin ||
402 t->t_cursor.tp_row >= t->t_scrollreg.ts_end)
405 tr.tr_begin.tp_col = 0;
406 tr.tr_end.tp_row = t->t_scrollreg.ts_end;
407 tr.tr_end.tp_col = t->t_winsize.tp_col;
409 if (t->t_cursor.tp_row + nrows >= t->t_scrollreg.ts_end) {
410 tr.tr_begin.tp_row = t->t_cursor.tp_row;
415 tr.tr_begin.tp_row = t->t_cursor.tp_row + nrows;
416 tp.tp_row = t->t_cursor.tp_row;
418 teken_funcs_copy(t, &tr, &tp);
420 tr.tr_begin.tp_row = t->t_scrollreg.ts_end - nrows;
423 /* Blank trailing rows. */
424 teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
428 teken_subr_device_control_string(teken_t *t)
431 teken_printf("Unsupported device control string\n");
432 t->t_stateflags |= TS_INSTRING;
436 teken_subr_device_status_report(teken_t *t, unsigned int cmd)
438 char response[19] = "\x1B[?";
441 len = teken_subr_do_cpr(t, cmd, response + 3);
445 teken_funcs_respond(t, response, len + 3);
449 teken_subr_double_height_double_width_line_top(teken_t *t __unused)
452 teken_printf("double height double width top\n");
456 teken_subr_double_height_double_width_line_bottom(teken_t *t __unused)
459 teken_printf("double height double width bottom\n");
463 teken_subr_erase_character(teken_t *t, unsigned int ncols)
467 tr.tr_begin = t->t_cursor;
468 tr.tr_end.tp_row = t->t_cursor.tp_row + 1;
470 if (t->t_cursor.tp_col + ncols >= t->t_winsize.tp_col)
471 tr.tr_end.tp_col = t->t_winsize.tp_col;
473 tr.tr_end.tp_col = t->t_cursor.tp_col + ncols;
475 teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
479 teken_subr_erase_display(teken_t *t, unsigned int mode)
483 r.tr_begin.tp_col = 0;
484 r.tr_end.tp_col = t->t_winsize.tp_col;
487 case 1: /* Erase from the top to the cursor. */
488 teken_subr_erase_line(t, 1);
490 /* Erase lines above. */
491 if (t->t_cursor.tp_row == 0)
493 r.tr_begin.tp_row = 0;
494 r.tr_end.tp_row = t->t_cursor.tp_row;
496 case 2: /* Erase entire display. */
497 r.tr_begin.tp_row = 0;
498 r.tr_end.tp_row = t->t_winsize.tp_row;
500 default: /* Erase from cursor to the bottom. */
501 teken_subr_erase_line(t, 0);
503 /* Erase lines below. */
504 if (t->t_cursor.tp_row == t->t_winsize.tp_row - 1)
506 r.tr_begin.tp_row = t->t_cursor.tp_row + 1;
507 r.tr_end.tp_row = t->t_winsize.tp_row;
511 teken_funcs_fill(t, &r, BLANK, &t->t_curattr);
515 teken_subr_erase_line(teken_t *t, unsigned int mode)
519 r.tr_begin.tp_row = t->t_cursor.tp_row;
520 r.tr_end.tp_row = t->t_cursor.tp_row + 1;
523 case 1: /* Erase from the beginning of the line to the cursor. */
524 r.tr_begin.tp_col = 0;
525 r.tr_end.tp_col = t->t_cursor.tp_col + 1;
527 case 2: /* Erase entire line. */
528 r.tr_begin.tp_col = 0;
529 r.tr_end.tp_col = t->t_winsize.tp_col;
531 default: /* Erase from cursor to the end of the line. */
532 r.tr_begin.tp_col = t->t_cursor.tp_col;
533 r.tr_end.tp_col = t->t_winsize.tp_col;
537 teken_funcs_fill(t, &r, BLANK, &t->t_curattr);
541 teken_subr_g0_scs_special_graphics(teken_t *t __unused)
544 t->t_scs[0] = teken_scs_special_graphics;
548 teken_subr_g0_scs_uk_national(teken_t *t __unused)
551 t->t_scs[0] = teken_scs_uk_national;
555 teken_subr_g0_scs_us_ascii(teken_t *t __unused)
558 t->t_scs[0] = teken_scs_us_ascii;
562 teken_subr_g1_scs_special_graphics(teken_t *t __unused)
565 t->t_scs[1] = teken_scs_special_graphics;
569 teken_subr_g1_scs_uk_national(teken_t *t __unused)
572 t->t_scs[1] = teken_scs_uk_national;
576 teken_subr_g1_scs_us_ascii(teken_t *t __unused)
579 t->t_scs[1] = teken_scs_us_ascii;
583 teken_subr_horizontal_position_absolute(teken_t *t, unsigned int col)
586 t->t_cursor.tp_col = col - 1;
587 if (t->t_cursor.tp_col >= t->t_winsize.tp_col)
588 t->t_cursor.tp_col = t->t_winsize.tp_col - 1;
590 t->t_stateflags &= ~TS_WRAPPED;
591 teken_funcs_cursor(t);
595 teken_subr_horizontal_tab(teken_t *t)
598 if (t->t_stateflags & TS_CONS25) {
599 teken_subr_cursor_forward_tabulation(t, 1);
603 tr.tr_begin = t->t_cursor;
604 teken_subr_cursor_forward_tabulation(t, 1);
605 tr.tr_end.tp_row = tr.tr_begin.tp_row + 1;
606 tr.tr_end.tp_col = t->t_cursor.tp_col;
608 /* Blank region that we skipped. */
609 if (tr.tr_end.tp_col > tr.tr_begin.tp_col)
610 teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
615 teken_subr_horizontal_tab_set(teken_t *t)
618 teken_tab_set(t, t->t_cursor.tp_col);
622 teken_subr_index(teken_t *t)
625 if (t->t_cursor.tp_row < t->t_scrollreg.ts_end - 1) {
626 t->t_cursor.tp_row++;
627 t->t_stateflags &= ~TS_WRAPPED;
628 teken_funcs_cursor(t);
630 teken_subr_do_scroll(t, 1);
635 teken_subr_insert_character(teken_t *t, unsigned int ncols)
639 tr.tr_begin = t->t_cursor;
640 tr.tr_end.tp_row = t->t_cursor.tp_row + 1;
642 if (t->t_cursor.tp_col + ncols >= t->t_winsize.tp_col) {
643 tr.tr_end.tp_col = t->t_winsize.tp_col;
647 /* Copy characters to the right. */
648 tr.tr_end.tp_col = t->t_winsize.tp_col - ncols;
649 tp.tp_row = t->t_cursor.tp_row;
650 tp.tp_col = t->t_cursor.tp_col + ncols;
651 teken_funcs_copy(t, &tr, &tp);
653 tr.tr_end.tp_col = t->t_cursor.tp_col + ncols;
656 /* Blank current location. */
657 teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
661 teken_subr_insert_line(teken_t *t, unsigned int nrows)
665 /* Ignore if outside scrolling region. */
666 if (t->t_cursor.tp_row < t->t_scrollreg.ts_begin ||
667 t->t_cursor.tp_row >= t->t_scrollreg.ts_end)
670 tr.tr_begin.tp_row = t->t_cursor.tp_row;
671 tr.tr_begin.tp_col = 0;
672 tr.tr_end.tp_col = t->t_winsize.tp_col;
674 if (t->t_cursor.tp_row + nrows >= t->t_scrollreg.ts_end) {
675 tr.tr_end.tp_row = t->t_scrollreg.ts_end;
679 /* Copy lines down. */
680 tr.tr_end.tp_row = t->t_scrollreg.ts_end - nrows;
681 tp.tp_row = t->t_cursor.tp_row + nrows;
683 teken_funcs_copy(t, &tr, &tp);
685 tr.tr_end.tp_row = t->t_cursor.tp_row + nrows;
688 /* Blank current location. */
689 teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
693 teken_subr_keypad_application_mode(teken_t *t)
696 teken_funcs_param(t, TP_KEYPADAPP, 1);
700 teken_subr_keypad_numeric_mode(teken_t *t)
703 teken_funcs_param(t, TP_KEYPADAPP, 0);
707 teken_subr_newline(teken_t *t)
710 t->t_cursor.tp_row++;
712 if (t->t_cursor.tp_row >= t->t_scrollreg.ts_end) {
713 teken_subr_do_scroll(t, 1);
714 t->t_cursor.tp_row = t->t_scrollreg.ts_end - 1;
717 t->t_stateflags &= ~TS_WRAPPED;
718 teken_funcs_cursor(t);
722 teken_subr_newpage(teken_t *t)
725 if (t->t_stateflags & TS_CONS25) {
728 tr.tr_begin.tp_row = tr.tr_begin.tp_col = 0;
729 tr.tr_end = t->t_winsize;
730 teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
732 t->t_cursor.tp_row = t->t_cursor.tp_col = 0;
733 teken_funcs_cursor(t);
735 teken_subr_newline(t);
740 teken_subr_next_line(teken_t *t)
743 t->t_cursor.tp_col = 0;
744 teken_subr_newline(t);
748 teken_subr_operating_system_command(teken_t *t)
751 teken_printf("Unsupported operating system command\n");
752 t->t_stateflags |= TS_INSTRING;
756 teken_subr_pan_down(teken_t *t, unsigned int nrows)
759 teken_subr_do_scroll(t, (int)nrows);
763 teken_subr_pan_up(teken_t *t, unsigned int nrows)
766 teken_subr_do_scroll(t, -(int)nrows);
770 teken_subr_primary_device_attributes(teken_t *t, unsigned int request)
774 const char response[] = "\x1B[?1;2c";
776 teken_funcs_respond(t, response, sizeof response - 1);
778 teken_printf("Unknown DA1\n");
783 teken_subr_do_putchar(teken_t *t, const teken_pos_t *tp, teken_char_t c,
787 if (t->t_stateflags & TS_INSERT &&
788 tp->tp_col < t->t_winsize.tp_col - width) {
792 /* Insert mode. Move existing characters to the right. */
794 ctr.tr_end.tp_row = tp->tp_row + 1;
795 ctr.tr_end.tp_col = t->t_winsize.tp_col - width;
796 ctp.tp_row = tp->tp_row;
797 ctp.tp_col = tp->tp_col + width;
798 teken_funcs_copy(t, &ctr, &ctp);
801 if (width == 2 && tp->tp_col + 1 < t->t_winsize.tp_col) {
805 * Store a space behind double width characters before
806 * actually printing them. This prevents artifacts when
807 * the consumer doesn't render it using double width
810 tp2.tp_row = tp->tp_row;
811 tp2.tp_col = tp->tp_col + 1;
812 teken_funcs_putchar(t, &tp2, BLANK, &t->t_curattr);
815 teken_funcs_putchar(t, tp, c, &t->t_curattr);
819 teken_subr_regular_character(teken_t *t, teken_char_t c)
823 if (t->t_stateflags & TS_8BIT) {
824 if (!(t->t_stateflags & TS_CONS25) && (c <= 0x1b || c == 0x7f))
826 c = teken_scs_process(t, c);
829 c = teken_scs_process(t, c);
830 width = teken_wcwidth(c);
831 /* XXX: Don't process zero-width characters yet. */
836 if (t->t_stateflags & TS_CONS25) {
837 teken_subr_do_putchar(t, &t->t_cursor, c, width);
838 t->t_cursor.tp_col += width;
840 if (t->t_cursor.tp_col >= t->t_winsize.tp_col) {
841 if (t->t_cursor.tp_row == t->t_scrollreg.ts_end - 1) {
842 /* Perform scrolling. */
843 teken_subr_do_scroll(t, 1);
845 /* No scrolling needed. */
846 if (t->t_cursor.tp_row <
847 t->t_winsize.tp_row - 1)
848 t->t_cursor.tp_row++;
850 t->t_cursor.tp_col = 0;
852 } else if (t->t_cursor.tp_col == t->t_winsize.tp_col - 1 &&
853 (t->t_stateflags & (TS_WRAPPED|TS_AUTOWRAP)) ==
854 (TS_WRAPPED|TS_AUTOWRAP)) {
857 /* Perform line wrapping. */
859 if (t->t_cursor.tp_row == t->t_scrollreg.ts_end - 1) {
860 /* Perform scrolling. */
861 teken_subr_do_scroll(t, 1);
862 tp.tp_row = t->t_scrollreg.ts_end - 1;
864 /* No scrolling needed. */
865 tp.tp_row = t->t_cursor.tp_row + 1;
866 if (tp.tp_row == t->t_winsize.tp_row) {
868 * Corner case: regular character
869 * outside scrolling region, but at the
870 * bottom of the screen.
872 teken_subr_do_putchar(t, &t->t_cursor,
879 teken_subr_do_putchar(t, &tp, c, width);
881 t->t_cursor.tp_row = tp.tp_row;
882 t->t_cursor.tp_col = width;
883 t->t_stateflags &= ~TS_WRAPPED;
885 /* No line wrapping needed. */
886 teken_subr_do_putchar(t, &t->t_cursor, c, width);
887 t->t_cursor.tp_col += width;
889 if (t->t_cursor.tp_col >= t->t_winsize.tp_col) {
890 t->t_stateflags |= TS_WRAPPED;
891 t->t_cursor.tp_col = t->t_winsize.tp_col - 1;
893 t->t_stateflags &= ~TS_WRAPPED;
897 teken_funcs_cursor(t);
901 teken_subr_reset_dec_mode(teken_t *t, unsigned int cmd)
905 case 1: /* Cursor keys mode. */
906 t->t_stateflags &= ~TS_CURSORKEYS;
908 case 2: /* DECANM: ANSI/VT52 mode. */
909 teken_printf("DECRST VT52\n");
911 case 3: /* 132 column mode. */
912 teken_funcs_param(t, TP_132COLS, 0);
913 teken_subr_reset_to_initial_state(t);
915 case 5: /* Inverse video. */
916 teken_printf("DECRST inverse video\n");
918 case 6: /* Origin mode. */
919 t->t_stateflags &= ~TS_ORIGIN;
920 t->t_originreg.ts_begin = 0;
921 t->t_originreg.ts_end = t->t_winsize.tp_row;
922 t->t_cursor.tp_row = t->t_cursor.tp_col = 0;
923 t->t_stateflags &= ~TS_WRAPPED;
924 teken_funcs_cursor(t);
926 case 7: /* Autowrap mode. */
927 t->t_stateflags &= ~TS_AUTOWRAP;
929 case 8: /* Autorepeat mode. */
930 teken_funcs_param(t, TP_AUTOREPEAT, 0);
932 case 25: /* Hide cursor. */
933 teken_funcs_param(t, TP_SHOWCURSOR, 0);
935 case 40: /* Disallow 132 columns. */
936 teken_printf("DECRST allow 132\n");
938 case 45: /* Disable reverse wraparound. */
939 teken_printf("DECRST reverse wraparound\n");
941 case 47: /* Switch to alternate buffer. */
942 teken_printf("Switch to alternate buffer\n");
944 case 1000: /* Mouse input. */
945 teken_funcs_param(t, TP_MOUSE, 0);
948 teken_printf("Unknown DECRST: %u\n", cmd);
953 teken_subr_reset_mode(teken_t *t, unsigned int cmd)
958 t->t_stateflags &= ~TS_INSERT;
961 teken_printf("Unknown reset mode: %u\n", cmd);
966 teken_subr_do_reset(teken_t *t)
969 t->t_curattr = t->t_defattr;
970 t->t_cursor.tp_row = t->t_cursor.tp_col = 0;
971 t->t_scrollreg.ts_begin = 0;
972 t->t_scrollreg.ts_end = t->t_winsize.tp_row;
973 t->t_originreg = t->t_scrollreg;
974 t->t_stateflags &= TS_8BIT|TS_CONS25;
975 t->t_stateflags |= TS_AUTOWRAP;
977 t->t_scs[0] = teken_scs_us_ascii;
978 t->t_scs[1] = teken_scs_us_ascii;
981 teken_subr_save_cursor(t);
982 teken_tab_default(t);
986 teken_subr_reset_to_initial_state(teken_t *t)
989 teken_subr_do_reset(t);
990 teken_subr_erase_display(t, 2);
991 teken_funcs_param(t, TP_SHOWCURSOR, 1);
992 teken_funcs_cursor(t);
996 teken_subr_restore_cursor(teken_t *t)
999 t->t_cursor = t->t_saved_cursor;
1000 t->t_curattr = t->t_saved_curattr;
1001 t->t_scs[t->t_curscs] = t->t_saved_curscs;
1002 t->t_stateflags &= ~TS_WRAPPED;
1004 /* Get out of origin mode when the cursor is moved outside. */
1005 if (t->t_cursor.tp_row < t->t_originreg.ts_begin ||
1006 t->t_cursor.tp_row >= t->t_originreg.ts_end) {
1007 t->t_stateflags &= ~TS_ORIGIN;
1008 t->t_originreg.ts_begin = 0;
1009 t->t_originreg.ts_end = t->t_winsize.tp_row;
1012 teken_funcs_cursor(t);
1016 teken_subr_reverse_index(teken_t *t)
1019 if (t->t_cursor.tp_row > t->t_scrollreg.ts_begin) {
1020 t->t_cursor.tp_row--;
1021 t->t_stateflags &= ~TS_WRAPPED;
1022 teken_funcs_cursor(t);
1024 teken_subr_do_scroll(t, -1);
1029 teken_subr_save_cursor(teken_t *t)
1032 t->t_saved_cursor = t->t_cursor;
1033 t->t_saved_curattr = t->t_curattr;
1034 t->t_saved_curscs = t->t_scs[t->t_curscs];
1038 teken_subr_secondary_device_attributes(teken_t *t, unsigned int request)
1042 const char response[] = "\x1B[>0;10;0c";
1043 teken_funcs_respond(t, response, sizeof response - 1);
1045 teken_printf("Unknown DA2\n");
1050 teken_subr_set_dec_mode(teken_t *t, unsigned int cmd)
1054 case 1: /* Cursor keys mode. */
1055 t->t_stateflags |= TS_CURSORKEYS;
1057 case 2: /* DECANM: ANSI/VT52 mode. */
1058 teken_printf("DECSET VT52\n");
1060 case 3: /* 132 column mode. */
1061 teken_funcs_param(t, TP_132COLS, 1);
1062 teken_subr_reset_to_initial_state(t);
1064 case 5: /* Inverse video. */
1065 teken_printf("DECSET inverse video\n");
1067 case 6: /* Origin mode. */
1068 t->t_stateflags |= TS_ORIGIN;
1069 t->t_originreg = t->t_scrollreg;
1070 t->t_cursor.tp_row = t->t_scrollreg.ts_begin;
1071 t->t_cursor.tp_col = 0;
1072 t->t_stateflags &= ~TS_WRAPPED;
1073 teken_funcs_cursor(t);
1075 case 7: /* Autowrap mode. */
1076 t->t_stateflags |= TS_AUTOWRAP;
1078 case 8: /* Autorepeat mode. */
1079 teken_funcs_param(t, TP_AUTOREPEAT, 1);
1081 case 25: /* Display cursor. */
1082 teken_funcs_param(t, TP_SHOWCURSOR, 1);
1084 case 40: /* Allow 132 columns. */
1085 teken_printf("DECSET allow 132\n");
1087 case 45: /* Enable reverse wraparound. */
1088 teken_printf("DECSET reverse wraparound\n");
1090 case 47: /* Switch to alternate buffer. */
1091 teken_printf("Switch away from alternate buffer\n");
1093 case 1000: /* Mouse input. */
1094 teken_funcs_param(t, TP_MOUSE, 1);
1097 teken_printf("Unknown DECSET: %u\n", cmd);
1102 teken_subr_set_mode(teken_t *t, unsigned int cmd)
1107 teken_printf("Insert mode\n");
1108 t->t_stateflags |= TS_INSERT;
1111 teken_printf("Unknown set mode: %u\n", cmd);
1116 teken_subr_set_graphic_rendition(teken_t *t, unsigned int ncmds,
1117 unsigned int cmds[])
1121 /* No attributes means reset. */
1123 t->t_curattr = t->t_defattr;
1127 for (i = 0; i < ncmds; i++) {
1131 case 0: /* Reset. */
1132 t->t_curattr = t->t_defattr;
1135 t->t_curattr.ta_format |= TF_BOLD;
1137 case 4: /* Underline. */
1138 t->t_curattr.ta_format |= TF_UNDERLINE;
1140 case 5: /* Blink. */
1141 t->t_curattr.ta_format |= TF_BLINK;
1143 case 7: /* Reverse. */
1144 t->t_curattr.ta_format |= TF_REVERSE;
1146 case 22: /* Remove bold. */
1147 t->t_curattr.ta_format &= ~TF_BOLD;
1149 case 24: /* Remove underline. */
1150 t->t_curattr.ta_format &= ~TF_UNDERLINE;
1152 case 25: /* Remove blink. */
1153 t->t_curattr.ta_format &= ~TF_BLINK;
1155 case 27: /* Remove reverse. */
1156 t->t_curattr.ta_format &= ~TF_REVERSE;
1158 case 30: /* Set foreground color: black */
1159 case 31: /* Set foreground color: red */
1160 case 32: /* Set foreground color: green */
1161 case 33: /* Set foreground color: brown */
1162 case 34: /* Set foreground color: blue */
1163 case 35: /* Set foreground color: magenta */
1164 case 36: /* Set foreground color: cyan */
1165 case 37: /* Set foreground color: white */
1166 t->t_curattr.ta_fgcolor = n - 30;
1168 case 38: /* Set foreground color: 256 color mode */
1169 if (i + 2 >= ncmds || cmds[i + 1] != 5)
1171 t->t_curattr.ta_fgcolor = cmds[i + 2];
1174 case 39: /* Set default foreground color. */
1175 t->t_curattr.ta_fgcolor = t->t_defattr.ta_fgcolor;
1177 case 40: /* Set background color: black */
1178 case 41: /* Set background color: red */
1179 case 42: /* Set background color: green */
1180 case 43: /* Set background color: brown */
1181 case 44: /* Set background color: blue */
1182 case 45: /* Set background color: magenta */
1183 case 46: /* Set background color: cyan */
1184 case 47: /* Set background color: white */
1185 t->t_curattr.ta_bgcolor = n - 40;
1187 case 48: /* Set background color: 256 color mode */
1188 if (i + 2 >= ncmds || cmds[i + 1] != 5)
1190 t->t_curattr.ta_bgcolor = cmds[i + 2];
1193 case 49: /* Set default background color. */
1194 t->t_curattr.ta_bgcolor = t->t_defattr.ta_bgcolor;
1196 case 90: /* Set bright foreground color: black */
1197 case 91: /* Set bright foreground color: red */
1198 case 92: /* Set bright foreground color: green */
1199 case 93: /* Set bright foreground color: brown */
1200 case 94: /* Set bright foreground color: blue */
1201 case 95: /* Set bright foreground color: magenta */
1202 case 96: /* Set bright foreground color: cyan */
1203 case 97: /* Set bright foreground color: white */
1204 t->t_curattr.ta_fgcolor = n - 90 + 8;
1206 case 100: /* Set bright background color: black */
1207 case 101: /* Set bright background color: red */
1208 case 102: /* Set bright background color: green */
1209 case 103: /* Set bright background color: brown */
1210 case 104: /* Set bright background color: blue */
1211 case 105: /* Set bright background color: magenta */
1212 case 106: /* Set bright background color: cyan */
1213 case 107: /* Set bright background color: white */
1214 t->t_curattr.ta_bgcolor = n - 100 + 8;
1217 teken_printf("unsupported attribute %u\n", n);
1223 teken_subr_set_top_and_bottom_margins(teken_t *t, unsigned int top,
1224 unsigned int bottom)
1227 /* Adjust top row number. */
1230 /* Adjust bottom row number. */
1231 if (bottom == 0 || bottom > t->t_winsize.tp_row)
1232 bottom = t->t_winsize.tp_row;
1234 /* Invalid arguments. */
1235 if (top >= bottom - 1) {
1237 bottom = t->t_winsize.tp_row;
1240 /* Apply scrolling region. */
1241 t->t_scrollreg.ts_begin = top;
1242 t->t_scrollreg.ts_end = bottom;
1243 if (t->t_stateflags & TS_ORIGIN)
1244 t->t_originreg = t->t_scrollreg;
1246 /* Home cursor to the top left of the scrolling region. */
1247 t->t_cursor.tp_row = t->t_originreg.ts_begin;
1248 t->t_cursor.tp_col = 0;
1249 t->t_stateflags &= ~TS_WRAPPED;
1250 teken_funcs_cursor(t);
1254 teken_subr_single_height_double_width_line(teken_t *t __unused)
1257 teken_printf("single height double width???\n");
1261 teken_subr_single_height_single_width_line(teken_t *t __unused)
1264 teken_printf("single height single width???\n");
1268 teken_subr_string_terminator(teken_t *t __unused)
1272 * Strings are already terminated in teken_input_char() when ^[
1278 teken_subr_tab_clear(teken_t *t, unsigned int cmd)
1283 teken_tab_clear(t, t->t_cursor.tp_col);
1286 memset(&t->t_tabstops, 0, T_NUMCOL / 8);
1292 teken_subr_vertical_position_absolute(teken_t *t, unsigned int row)
1295 t->t_cursor.tp_row = t->t_originreg.ts_begin + row - 1;
1296 if (row >= t->t_originreg.ts_end)
1297 t->t_cursor.tp_row = t->t_originreg.ts_end - 1;
1300 t->t_stateflags &= ~TS_WRAPPED;
1301 teken_funcs_cursor(t);