1 /*-
2 * Copyright (c) 2008-2009 Ed Schouten <ed@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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.
13 *
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
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: releng/9.2/sys/teken/teken_subr.h 226295 2011-10-12 09:28:09Z ed $
27 */
28
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 *);
34
35 static inline int
36 teken_tab_isset(teken_t *t, unsigned int col)
37 {
38 unsigned int b, o;
39
40 if (col >= T_NUMCOL)
41 return ((col % 8) == 0);
42
43 b = col / (sizeof(unsigned int) * 8);
44 o = col % (sizeof(unsigned int) * 8);
45
46 return (t->t_tabstops[b] & (1 << o));
47 }
48
49 static inline void
50 teken_tab_clear(teken_t *t, unsigned int col)
51 {
52 unsigned int b, o;
53
54 if (col >= T_NUMCOL)
55 return;
56
57 b = col / (sizeof(unsigned int) * 8);
58 o = col % (sizeof(unsigned int) * 8);
59
60 t->t_tabstops[b] &= ~(1 << o);
61 }
62
63 static inline void
64 teken_tab_set(teken_t *t, unsigned int col)
65 {
66 unsigned int b, o;
67
68 if (col >= T_NUMCOL)
69 return;
70
71 b = col / (sizeof(unsigned int) * 8);
72 o = col % (sizeof(unsigned int) * 8);
73
74 t->t_tabstops[b] |= 1 << o;
75 }
76
77 static void
78 teken_tab_default(teken_t *t)
79 {
80 unsigned int i;
81
82 memset(&t->t_tabstops, 0, T_NUMCOL / 8);
83
84 for (i = 8; i < T_NUMCOL; i += 8)
85 teken_tab_set(t, i);
86 }
87
88 static void
89 teken_subr_do_scroll(teken_t *t, int amount)
90 {
91 teken_rect_t tr;
92 teken_pos_t tp;
93
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);
97
98 /* Copy existing data 1 line up. */
99 if (amount > 0) {
100 /* Scroll down. */
101
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;
109 tp.tp_col = 0;
110 teken_funcs_copy(t, &tr, &tp);
111
112 tr.tr_begin.tp_row = t->t_scrollreg.ts_end - amount;
113 } else {
114 tr.tr_begin.tp_row = t->t_scrollreg.ts_begin;
115 }
116
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);
122 } else {
123 /* Scroll up. */
124 amount = -amount;
125
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;
133 tp.tp_col = 0;
134 teken_funcs_copy(t, &tr, &tp);
135
136 tr.tr_end.tp_row = t->t_scrollreg.ts_begin + amount;
137 } else {
138 tr.tr_end.tp_row = t->t_scrollreg.ts_end;
139 }
140
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);
146 }
147 }
148
149 static ssize_t
150 teken_subr_do_cpr(teken_t *t, unsigned int cmd, char response[16])
151 {
152
153 switch (cmd) {
154 case 5: /* Operating status. */
155 strcpy(response, "0n");
156 return (2);
157 case 6: { /* Cursor position. */
158 int len;
159
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);
163
164 if (len >= 16)
165 return (-1);
166 return (len);
167 }
168 case 15: /* Printer status. */
169 strcpy(response, "13n");
170 return (3);
171 case 25: /* UDK status. */
172 strcpy(response, "20n");
173 return (3);
174 case 26: /* Keyboard status. */
175 strcpy(response, "27;1n");
176 return (5);
177 default:
178 teken_printf("Unknown DSR\n");
179 return (-1);
180 }
181 }
182
183 static void
184 teken_subr_alignment_test(teken_t *t)
185 {
186 teken_rect_t tr;
187
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);
194
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);
199 }
200
201 static void
202 teken_subr_backspace(teken_t *t)
203 {
204
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)
208 return;
209 t->t_cursor.tp_row--;
210 t->t_cursor.tp_col = t->t_winsize.tp_col - 1;
211 } else {
212 t->t_cursor.tp_col--;
213 }
214 } else {
215 if (t->t_cursor.tp_col == 0)
216 return;
217
218 t->t_cursor.tp_col--;
219 t->t_stateflags &= ~TS_WRAPPED;
220 }
221
222 teken_funcs_cursor(t);
223 }
224
225 static void
226 teken_subr_bell(teken_t *t)
227 {
228
229 teken_funcs_bell(t);
230 }
231
232 static void
233 teken_subr_carriage_return(teken_t *t)
234 {
235
236 t->t_cursor.tp_col = 0;
237 t->t_stateflags &= ~TS_WRAPPED;
238 teken_funcs_cursor(t);
239 }
240
241 static void
242 teken_subr_cursor_backward(teken_t *t, unsigned int ncols)
243 {
244
245 if (ncols > t->t_cursor.tp_col)
246 t->t_cursor.tp_col = 0;
247 else
248 t->t_cursor.tp_col -= ncols;
249 t->t_stateflags &= ~TS_WRAPPED;
250 teken_funcs_cursor(t);
251 }
252
253 static void
254 teken_subr_cursor_backward_tabulation(teken_t *t, unsigned int ntabs)
255 {
256
257 do {
258 /* Stop when we've reached the beginning of the line. */
259 if (t->t_cursor.tp_col == 0)
260 break;
261
262 t->t_cursor.tp_col--;
263
264 /* Tab marker set. */
265 if (teken_tab_isset(t, t->t_cursor.tp_col))
266 ntabs--;
267 } while (ntabs > 0);
268
269 teken_funcs_cursor(t);
270 }
271
272 static void
273 teken_subr_cursor_down(teken_t *t, unsigned int nrows)
274 {
275
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;
278 else
279 t->t_cursor.tp_row += nrows;
280 t->t_stateflags &= ~TS_WRAPPED;
281 teken_funcs_cursor(t);
282 }
283
284 static void
285 teken_subr_cursor_forward(teken_t *t, unsigned int ncols)
286 {
287
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;
290 else
291 t->t_cursor.tp_col += ncols;
292 t->t_stateflags &= ~TS_WRAPPED;
293 teken_funcs_cursor(t);
294 }
295
296 static void
297 teken_subr_cursor_forward_tabulation(teken_t *t, unsigned int ntabs)
298 {
299
300 do {
301 /* Stop when we've reached the end of the line. */
302 if (t->t_cursor.tp_col == t->t_winsize.tp_col - 1)
303 break;
304
305 t->t_cursor.tp_col++;
306
307 /* Tab marker set. */
308 if (teken_tab_isset(t, t->t_cursor.tp_col))
309 ntabs--;
310 } while (ntabs > 0);
311
312 teken_funcs_cursor(t);
313 }
314
315 static void
316 teken_subr_cursor_next_line(teken_t *t, unsigned int ncols)
317 {
318
319 t->t_cursor.tp_col = 0;
320 teken_subr_cursor_down(t, ncols);
321 }
322
323 static void
324 teken_subr_cursor_position(teken_t *t, unsigned int row, unsigned int col)
325 {
326
327 t->t_cursor.tp_row = t->t_originreg.ts_begin + row - 1;
328 if (t->t_cursor.tp_row >= t->t_originreg.ts_end)
329 t->t_cursor.tp_row = t->t_originreg.ts_end - 1;
330
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;
334
335 t->t_stateflags &= ~TS_WRAPPED;
336 teken_funcs_cursor(t);
337 }
338
339 static void
340 teken_subr_cursor_position_report(teken_t *t, unsigned int cmd)
341 {
342 char response[18] = "\x1B[";
343 ssize_t len;
344
345 len = teken_subr_do_cpr(t, cmd, response + 2);
346 if (len < 0)
347 return;
348
349 teken_funcs_respond(t, response, len + 2);
350 }
351
352 static void
353 teken_subr_cursor_previous_line(teken_t *t, unsigned int ncols)
354 {
355
356 t->t_cursor.tp_col = 0;
357 teken_subr_cursor_up(t, ncols);
358 }
359
360 static void
361 teken_subr_cursor_up(teken_t *t, unsigned int nrows)
362 {
363
364 if (t->t_scrollreg.ts_begin + nrows >= t->t_cursor.tp_row)
365 t->t_cursor.tp_row = t->t_scrollreg.ts_begin;
366 else
367 t->t_cursor.tp_row -= nrows;
368 t->t_stateflags &= ~TS_WRAPPED;
369 teken_funcs_cursor(t);
370 }
371
372 static void
373 teken_subr_delete_character(teken_t *t, unsigned int ncols)
374 {
375 teken_rect_t tr;
376
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;
380
381 if (t->t_cursor.tp_col + ncols >= t->t_winsize.tp_col) {
382 tr.tr_begin.tp_col = t->t_cursor.tp_col;
383 } else {
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);
387
388 tr.tr_begin.tp_col = t->t_winsize.tp_col - ncols;
389 }
390
391 /* Blank trailing columns. */
392 teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
393 }
394
395 static void
396 teken_subr_delete_line(teken_t *t, unsigned int nrows)
397 {
398 teken_rect_t tr;
399
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)
403 return;
404
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;
408
409 if (t->t_cursor.tp_row + nrows >= t->t_scrollreg.ts_end) {
410 tr.tr_begin.tp_row = t->t_cursor.tp_row;
411 } else {
412 teken_pos_t tp;
413
414 /* Copy rows up. */
415 tr.tr_begin.tp_row = t->t_cursor.tp_row + nrows;
416 tp.tp_row = t->t_cursor.tp_row;
417 tp.tp_col = 0;
418 teken_funcs_copy(t, &tr, &tp);
419
420 tr.tr_begin.tp_row = t->t_scrollreg.ts_end - nrows;
421 }
422
423 /* Blank trailing rows. */
424 teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
425 }
426
427 static void
428 teken_subr_device_control_string(teken_t *t)
429 {
430
431 teken_printf("Unsupported device control string\n");
432 t->t_stateflags |= TS_INSTRING;
433 }
434
435 static void
436 teken_subr_device_status_report(teken_t *t, unsigned int cmd)
437 {
438 char response[19] = "\x1B[?";
439 ssize_t len;
440
441 len = teken_subr_do_cpr(t, cmd, response + 3);
442 if (len < 0)
443 return;
444
445 teken_funcs_respond(t, response, len + 3);
446 }
447
448 static void
449 teken_subr_double_height_double_width_line_top(teken_t *t __unused)
450 {
451
452 teken_printf("double height double width top\n");
453 }
454
455 static void
456 teken_subr_double_height_double_width_line_bottom(teken_t *t __unused)
457 {
458
459 teken_printf("double height double width bottom\n");
460 }
461
462 static void
463 teken_subr_erase_character(teken_t *t, unsigned int ncols)
464 {
465 teken_rect_t tr;
466
467 tr.tr_begin = t->t_cursor;
468 tr.tr_end.tp_row = t->t_cursor.tp_row + 1;
469
470 if (t->t_cursor.tp_col + ncols >= t->t_winsize.tp_col)
471 tr.tr_end.tp_col = t->t_winsize.tp_col;
472 else
473 tr.tr_end.tp_col = t->t_cursor.tp_col + ncols;
474
475 teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
476 }
477
478 static void
479 teken_subr_erase_display(teken_t *t, unsigned int mode)
480 {
481 teken_rect_t r;
482
483 r.tr_begin.tp_col = 0;
484 r.tr_end.tp_col = t->t_winsize.tp_col;
485
486 switch (mode) {
487 case 1: /* Erase from the top to the cursor. */
488 teken_subr_erase_line(t, 1);
489
490 /* Erase lines above. */
491 if (t->t_cursor.tp_row == 0)
492 return;
493 r.tr_begin.tp_row = 0;
494 r.tr_end.tp_row = t->t_cursor.tp_row;
495 break;
496 case 2: /* Erase entire display. */
497 r.tr_begin.tp_row = 0;
498 r.tr_end.tp_row = t->t_winsize.tp_row;
499 break;
500 default: /* Erase from cursor to the bottom. */
501 teken_subr_erase_line(t, 0);
502
503 /* Erase lines below. */
504 if (t->t_cursor.tp_row == t->t_winsize.tp_row - 1)
505 return;
506 r.tr_begin.tp_row = t->t_cursor.tp_row + 1;
507 r.tr_end.tp_row = t->t_winsize.tp_row;
508 break;
509 }
510
511 teken_funcs_fill(t, &r, BLANK, &t->t_curattr);
512 }
513
514 static void
515 teken_subr_erase_line(teken_t *t, unsigned int mode)
516 {
517 teken_rect_t r;
518
519 r.tr_begin.tp_row = t->t_cursor.tp_row;
520 r.tr_end.tp_row = t->t_cursor.tp_row + 1;
521
522 switch (mode) {
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;
526 break;
527 case 2: /* Erase entire line. */
528 r.tr_begin.tp_col = 0;
529 r.tr_end.tp_col = t->t_winsize.tp_col;
530 break;
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;
534 break;
535 }
536
537 teken_funcs_fill(t, &r, BLANK, &t->t_curattr);
538 }
539
540 static void
541 teken_subr_g0_scs_special_graphics(teken_t *t __unused)
542 {
543
544 t->t_scs[0] = teken_scs_special_graphics;
545 }
546
547 static void
548 teken_subr_g0_scs_uk_national(teken_t *t __unused)
549 {
550
551 t->t_scs[0] = teken_scs_uk_national;
552 }
553
554 static void
555 teken_subr_g0_scs_us_ascii(teken_t *t __unused)
556 {
557
558 t->t_scs[0] = teken_scs_us_ascii;
559 }
560
561 static void
562 teken_subr_g1_scs_special_graphics(teken_t *t __unused)
563 {
564
565 t->t_scs[1] = teken_scs_special_graphics;
566 }
567
568 static void
569 teken_subr_g1_scs_uk_national(teken_t *t __unused)
570 {
571
572 t->t_scs[1] = teken_scs_uk_national;
573 }
574
575 static void
576 teken_subr_g1_scs_us_ascii(teken_t *t __unused)
577 {
578
579 t->t_scs[1] = teken_scs_us_ascii;
580 }
581
582 static void
583 teken_subr_horizontal_position_absolute(teken_t *t, unsigned int col)
584 {
585
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;
589
590 t->t_stateflags &= ~TS_WRAPPED;
591 teken_funcs_cursor(t);
592 }
593
594 static void
595 teken_subr_horizontal_tab(teken_t *t)
596 {
597
598 teken_subr_cursor_forward_tabulation(t, 1);
599 }
600
601 static void
602 teken_subr_horizontal_tab_set(teken_t *t)
603 {
604
605 teken_tab_set(t, t->t_cursor.tp_col);
606 }
607
608 static void
609 teken_subr_index(teken_t *t)
610 {
611
612 if (t->t_cursor.tp_row < t->t_scrollreg.ts_end - 1) {
613 t->t_cursor.tp_row++;
614 t->t_stateflags &= ~TS_WRAPPED;
615 teken_funcs_cursor(t);
616 } else {
617 teken_subr_do_scroll(t, 1);
618 }
619 }
620
621 static void
622 teken_subr_insert_character(teken_t *t, unsigned int ncols)
623 {
624 teken_rect_t tr;
625
626 tr.tr_begin = t->t_cursor;
627 tr.tr_end.tp_row = t->t_cursor.tp_row + 1;
628
629 if (t->t_cursor.tp_col + ncols >= t->t_winsize.tp_col) {
630 tr.tr_end.tp_col = t->t_winsize.tp_col;
631 } else {
632 teken_pos_t tp;
633
634 /* Copy characters to the right. */
635 tr.tr_end.tp_col = t->t_winsize.tp_col - ncols;
636 tp.tp_row = t->t_cursor.tp_row;
637 tp.tp_col = t->t_cursor.tp_col + ncols;
638 teken_funcs_copy(t, &tr, &tp);
639
640 tr.tr_end.tp_col = t->t_cursor.tp_col + ncols;
641 }
642
643 /* Blank current location. */
644 teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
645 }
646
647 static void
648 teken_subr_insert_line(teken_t *t, unsigned int nrows)
649 {
650 teken_rect_t tr;
651
652 /* Ignore if outside scrolling region. */
653 if (t->t_cursor.tp_row < t->t_scrollreg.ts_begin ||
654 t->t_cursor.tp_row >= t->t_scrollreg.ts_end)
655 return;
656
657 tr.tr_begin.tp_row = t->t_cursor.tp_row;
658 tr.tr_begin.tp_col = 0;
659 tr.tr_end.tp_col = t->t_winsize.tp_col;
660
661 if (t->t_cursor.tp_row + nrows >= t->t_scrollreg.ts_end) {
662 tr.tr_end.tp_row = t->t_scrollreg.ts_end;
663 } else {
664 teken_pos_t tp;
665
666 /* Copy lines down. */
667 tr.tr_end.tp_row = t->t_scrollreg.ts_end - nrows;
668 tp.tp_row = t->t_cursor.tp_row + nrows;
669 tp.tp_col = 0;
670 teken_funcs_copy(t, &tr, &tp);
671
672 tr.tr_end.tp_row = t->t_cursor.tp_row + nrows;
673 }
674
675 /* Blank current location. */
676 teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
677 }
678
679 static void
680 teken_subr_keypad_application_mode(teken_t *t)
681 {
682
683 teken_funcs_param(t, TP_KEYPADAPP, 1);
684 }
685
686 static void
687 teken_subr_keypad_numeric_mode(teken_t *t)
688 {
689
690 teken_funcs_param(t, TP_KEYPADAPP, 0);
691 }
692
693 static void
694 teken_subr_newline(teken_t *t)
695 {
696
697 t->t_cursor.tp_row++;
698
699 if (t->t_cursor.tp_row >= t->t_scrollreg.ts_end) {
700 teken_subr_do_scroll(t, 1);
701 t->t_cursor.tp_row = t->t_scrollreg.ts_end - 1;
702 }
703
704 t->t_stateflags &= ~TS_WRAPPED;
705 teken_funcs_cursor(t);
706 }
707
708 static void
709 teken_subr_newpage(teken_t *t)
710 {
711
712 if (t->t_stateflags & TS_CONS25) {
713 teken_rect_t tr;
714
715 /* Clear screen. */
716 tr.tr_begin.tp_row = t->t_originreg.ts_begin;
717 tr.tr_begin.tp_col = 0;
718 tr.tr_end.tp_row = t->t_originreg.ts_end;
719 tr.tr_end.tp_col = t->t_winsize.tp_col;
720 teken_funcs_fill(t, &tr, BLANK, &t->t_curattr);
721
722 /* Cursor at top left. */
723 t->t_cursor.tp_row = t->t_originreg.ts_begin;
724 t->t_cursor.tp_col = 0;
725 t->t_stateflags &= ~TS_WRAPPED;
726 teken_funcs_cursor(t);
727 } else {
728 teken_subr_newline(t);
729 }
730 }
731
732 static void
733 teken_subr_next_line(teken_t *t)
734 {
735
736 t->t_cursor.tp_col = 0;
737 teken_subr_newline(t);
738 }
739
740 static void
741 teken_subr_operating_system_command(teken_t *t)
742 {
743
744 teken_printf("Unsupported operating system command\n");
745 t->t_stateflags |= TS_INSTRING;
746 }
747
748 static void
749 teken_subr_pan_down(teken_t *t, unsigned int nrows)
750 {
751
752 teken_subr_do_scroll(t, (int)nrows);
753 }
754
755 static void
756 teken_subr_pan_up(teken_t *t, unsigned int nrows)
757 {
758
759 teken_subr_do_scroll(t, -(int)nrows);
760 }
761
762 static void
763 teken_subr_primary_device_attributes(teken_t *t, unsigned int request)
764 {
765
766 if (request == 0) {
767 const char response[] = "\x1B[?1;2c";
768
769 teken_funcs_respond(t, response, sizeof response - 1);
770 } else {
771 teken_printf("Unknown DA1\n");
772 }
773 }
774
775 static void
776 teken_subr_do_putchar(teken_t *t, const teken_pos_t *tp, teken_char_t c,
777 int width)
778 {
779
780 if (t->t_stateflags & TS_INSERT &&
781 tp->tp_col < t->t_winsize.tp_col - width) {
782 teken_rect_t ctr;
783 teken_pos_t ctp;
784
785 /* Insert mode. Move existing characters to the right. */
786 ctr.tr_begin = *tp;
787 ctr.tr_end.tp_row = tp->tp_row + 1;
788 ctr.tr_end.tp_col = t->t_winsize.tp_col - width;
789 ctp.tp_row = tp->tp_row;
790 ctp.tp_col = tp->tp_col + width;
791 teken_funcs_copy(t, &ctr, &ctp);
792 }
793
794 if (width == 2 && tp->tp_col + 1 < t->t_winsize.tp_col) {
795 teken_pos_t tp2;
796
797 /*
798 * Store a space behind double width characters before
799 * actually printing them. This prevents artifacts when
800 * the consumer doesn't render it using double width
801 * glyphs.
802 */
803 tp2.tp_row = tp->tp_row;
804 tp2.tp_col = tp->tp_col + 1;
805 teken_funcs_putchar(t, &tp2, BLANK, &t->t_curattr);
806 }
807
808 teken_funcs_putchar(t, tp, c, &t->t_curattr);
809 }
810
811 static void
812 teken_subr_regular_character(teken_t *t, teken_char_t c)
813 {
814 int width;
815
816 if (t->t_stateflags & TS_8BIT) {
817 if (!(t->t_stateflags & TS_CONS25) && (c <= 0x1b || c == 0x7f))
818 return;
819 c = teken_scs_process(t, c);
820 width = 1;
821 } else {
822 c = teken_scs_process(t, c);
823 width = teken_wcwidth(c);
824 /* XXX: Don't process zero-width characters yet. */
825 if (width <= 0)
826 return;
827 }
828
829 if (t->t_stateflags & TS_CONS25) {
830 teken_subr_do_putchar(t, &t->t_cursor, c, width);
831 t->t_cursor.tp_col += width;
832
833 if (t->t_cursor.tp_col >= t->t_winsize.tp_col) {
834 if (t->t_cursor.tp_row == t->t_scrollreg.ts_end - 1) {
835 /* Perform scrolling. */
836 teken_subr_do_scroll(t, 1);
837 } else {
838 /* No scrolling needed. */
839 if (t->t_cursor.tp_row <
840 t->t_winsize.tp_row - 1)
841 t->t_cursor.tp_row++;
842 }
843 t->t_cursor.tp_col = 0;
844 }
845 } else if (t->t_cursor.tp_col == t->t_winsize.tp_col - 1 &&
846 (t->t_stateflags & (TS_WRAPPED|TS_AUTOWRAP)) ==
847 (TS_WRAPPED|TS_AUTOWRAP)) {
848 teken_pos_t tp;
849
850 /* Perform line wrapping. */
851
852 if (t->t_cursor.tp_row == t->t_scrollreg.ts_end - 1) {
853 /* Perform scrolling. */
854 teken_subr_do_scroll(t, 1);
855 tp.tp_row = t->t_scrollreg.ts_end - 1;
856 } else {
857 /* No scrolling needed. */
858 tp.tp_row = t->t_cursor.tp_row + 1;
859 if (tp.tp_row == t->t_winsize.tp_row) {
860 /*
861 * Corner case: regular character
862 * outside scrolling region, but at the
863 * bottom of the screen.
864 */
865 teken_subr_do_putchar(t, &t->t_cursor,
866 c, width);
867 return;
868 }
869 }
870
871 tp.tp_col = 0;
872 teken_subr_do_putchar(t, &tp, c, width);
873
874 t->t_cursor.tp_row = tp.tp_row;
875 t->t_cursor.tp_col = width;
876 t->t_stateflags &= ~TS_WRAPPED;
877 } else {
878 /* No line wrapping needed. */
879 teken_subr_do_putchar(t, &t->t_cursor, c, width);
880 t->t_cursor.tp_col += width;
881
882 if (t->t_cursor.tp_col >= t->t_winsize.tp_col) {
883 t->t_stateflags |= TS_WRAPPED;
884 t->t_cursor.tp_col = t->t_winsize.tp_col - 1;
885 } else {
886 t->t_stateflags &= ~TS_WRAPPED;
887 }
888 }
889
890 teken_funcs_cursor(t);
891 }
892
893 static void
894 teken_subr_reset_dec_mode(teken_t *t, unsigned int cmd)
895 {
896
897 switch (cmd) {
898 case 1: /* Cursor keys mode. */
899 t->t_stateflags &= ~TS_CURSORKEYS;
900 break;
901 case 2: /* DECANM: ANSI/VT52 mode. */
902 teken_printf("DECRST VT52\n");
903 break;
904 case 3: /* 132 column mode. */
905 teken_funcs_param(t, TP_132COLS, 0);
906 teken_subr_reset_to_initial_state(t);
907 break;
908 case 5: /* Inverse video. */
909 teken_printf("DECRST inverse video\n");
910 break;
911 case 6: /* Origin mode. */
912 t->t_stateflags &= ~TS_ORIGIN;
913 t->t_originreg.ts_begin = 0;
914 t->t_originreg.ts_end = t->t_winsize.tp_row;
915 t->t_cursor.tp_row = t->t_cursor.tp_col = 0;
916 t->t_stateflags &= ~TS_WRAPPED;
917 teken_funcs_cursor(t);
918 break;
919 case 7: /* Autowrap mode. */
920 t->t_stateflags &= ~TS_AUTOWRAP;
921 break;
922 case 8: /* Autorepeat mode. */
923 teken_funcs_param(t, TP_AUTOREPEAT, 0);
924 break;
925 case 25: /* Hide cursor. */
926 teken_funcs_param(t, TP_SHOWCURSOR, 0);
927 break;
928 case 40: /* Disallow 132 columns. */
929 teken_printf("DECRST allow 132\n");
930 break;
931 case 45: /* Disable reverse wraparound. */
932 teken_printf("DECRST reverse wraparound\n");
933 break;
934 case 47: /* Switch to alternate buffer. */
935 teken_printf("Switch to alternate buffer\n");
936 break;
937 case 1000: /* Mouse input. */
938 teken_funcs_param(t, TP_MOUSE, 0);
939 break;
940 default:
941 teken_printf("Unknown DECRST: %u\n", cmd);
942 }
943 }
944
945 static void
946 teken_subr_reset_mode(teken_t *t, unsigned int cmd)
947 {
948
949 switch (cmd) {
950 case 4:
951 t->t_stateflags &= ~TS_INSERT;
952 break;
953 default:
954 teken_printf("Unknown reset mode: %u\n", cmd);
955 }
956 }
957
958 static void
959 teken_subr_do_reset(teken_t *t)
960 {
961
962 t->t_curattr = t->t_defattr;
963 t->t_cursor.tp_row = t->t_cursor.tp_col = 0;
964 t->t_scrollreg.ts_begin = 0;
965 t->t_scrollreg.ts_end = t->t_winsize.tp_row;
966 t->t_originreg = t->t_scrollreg;
967 t->t_stateflags &= TS_8BIT|TS_CONS25;
968 t->t_stateflags |= TS_AUTOWRAP;
969
970 t->t_scs[0] = teken_scs_us_ascii;
971 t->t_scs[1] = teken_scs_us_ascii;
972 t->t_curscs = 0;
973
974 teken_subr_save_cursor(t);
975 teken_tab_default(t);
976 }
977
978 static void
979 teken_subr_reset_to_initial_state(teken_t *t)
980 {
981
982 teken_subr_do_reset(t);
983 teken_subr_erase_display(t, 2);
984 teken_funcs_param(t, TP_SHOWCURSOR, 1);
985 teken_funcs_cursor(t);
986 }
987
988 static void
989 teken_subr_restore_cursor(teken_t *t)
990 {
991
992 t->t_cursor = t->t_saved_cursor;
993 t->t_curattr = t->t_saved_curattr;
994 t->t_scs[t->t_curscs] = t->t_saved_curscs;
995 t->t_stateflags &= ~TS_WRAPPED;
996
997 /* Get out of origin mode when the cursor is moved outside. */
998 if (t->t_cursor.tp_row < t->t_originreg.ts_begin ||
999 t->t_cursor.tp_row >= t->t_originreg.ts_end) {
1000 t->t_stateflags &= ~TS_ORIGIN;
1001 t->t_originreg.ts_begin = 0;
1002 t->t_originreg.ts_end = t->t_winsize.tp_row;
1003 }
1004
1005 teken_funcs_cursor(t);
1006 }
1007
1008 static void
1009 teken_subr_reverse_index(teken_t *t)
1010 {
1011
1012 if (t->t_cursor.tp_row > t->t_scrollreg.ts_begin) {
1013 t->t_cursor.tp_row--;
1014 t->t_stateflags &= ~TS_WRAPPED;
1015 teken_funcs_cursor(t);
1016 } else {
1017 teken_subr_do_scroll(t, -1);
1018 }
1019 }
1020
1021 static void
1022 teken_subr_save_cursor(teken_t *t)
1023 {
1024
1025 t->t_saved_cursor = t->t_cursor;
1026 t->t_saved_curattr = t->t_curattr;
1027 t->t_saved_curscs = t->t_scs[t->t_curscs];
1028 }
1029
1030 static void
1031 teken_subr_secondary_device_attributes(teken_t *t, unsigned int request)
1032 {
1033
1034 if (request == 0) {
1035 const char response[] = "\x1B[>0;10;0c";
1036 teken_funcs_respond(t, response, sizeof response - 1);
1037 } else {
1038 teken_printf("Unknown DA2\n");
1039 }
1040 }
1041
1042 static void
1043 teken_subr_set_dec_mode(teken_t *t, unsigned int cmd)
1044 {
1045
1046 switch (cmd) {
1047 case 1: /* Cursor keys mode. */
1048 t->t_stateflags |= TS_CURSORKEYS;
1049 break;
1050 case 2: /* DECANM: ANSI/VT52 mode. */
1051 teken_printf("DECSET VT52\n");
1052 break;
1053 case 3: /* 132 column mode. */
1054 teken_funcs_param(t, TP_132COLS, 1);
1055 teken_subr_reset_to_initial_state(t);
1056 break;
1057 case 5: /* Inverse video. */
1058 teken_printf("DECSET inverse video\n");
1059 break;
1060 case 6: /* Origin mode. */
1061 t->t_stateflags |= TS_ORIGIN;
1062 t->t_originreg = t->t_scrollreg;
1063 t->t_cursor.tp_row = t->t_scrollreg.ts_begin;
1064 t->t_cursor.tp_col = 0;
1065 t->t_stateflags &= ~TS_WRAPPED;
1066 teken_funcs_cursor(t);
1067 break;
1068 case 7: /* Autowrap mode. */
1069 t->t_stateflags |= TS_AUTOWRAP;
1070 break;
1071 case 8: /* Autorepeat mode. */
1072 teken_funcs_param(t, TP_AUTOREPEAT, 1);
1073 break;
1074 case 25: /* Display cursor. */
1075 teken_funcs_param(t, TP_SHOWCURSOR, 1);
1076 break;
1077 case 40: /* Allow 132 columns. */
1078 teken_printf("DECSET allow 132\n");
1079 break;
1080 case 45: /* Enable reverse wraparound. */
1081 teken_printf("DECSET reverse wraparound\n");
1082 break;
1083 case 47: /* Switch to alternate buffer. */
1084 teken_printf("Switch away from alternate buffer\n");
1085 break;
1086 case 1000: /* Mouse input. */
1087 teken_funcs_param(t, TP_MOUSE, 1);
1088 break;
1089 default:
1090 teken_printf("Unknown DECSET: %u\n", cmd);
1091 }
1092 }
1093
1094 static void
1095 teken_subr_set_mode(teken_t *t, unsigned int cmd)
1096 {
1097
1098 switch (cmd) {
1099 case 4:
1100 teken_printf("Insert mode\n");
1101 t->t_stateflags |= TS_INSERT;
1102 break;
1103 default:
1104 teken_printf("Unknown set mode: %u\n", cmd);
1105 }
1106 }
1107
1108 static void
1109 teken_subr_set_graphic_rendition(teken_t *t, unsigned int ncmds,
1110 unsigned int cmds[])
1111 {
1112 unsigned int i, n;
1113
1114 /* No attributes means reset. */
1115 if (ncmds == 0) {
1116 t->t_curattr = t->t_defattr;
1117 return;
1118 }
1119
1120 for (i = 0; i < ncmds; i++) {
1121 n = cmds[i];
1122
1123 switch (n) {
1124 case 0: /* Reset. */
1125 t->t_curattr = t->t_defattr;
1126 break;
1127 case 1: /* Bold. */
1128 t->t_curattr.ta_format |= TF_BOLD;
1129 break;
1130 case 4: /* Underline. */
1131 t->t_curattr.ta_format |= TF_UNDERLINE;
1132 break;
1133 case 5: /* Blink. */
1134 t->t_curattr.ta_format |= TF_BLINK;
1135 break;
1136 case 7: /* Reverse. */
1137 t->t_curattr.ta_format |= TF_REVERSE;
1138 break;
1139 case 22: /* Remove bold. */
1140 t->t_curattr.ta_format &= ~TF_BOLD;
1141 break;
1142 case 24: /* Remove underline. */
1143 t->t_curattr.ta_format &= ~TF_UNDERLINE;
1144 break;
1145 case 25: /* Remove blink. */
1146 t->t_curattr.ta_format &= ~TF_BLINK;
1147 break;
1148 case 27: /* Remove reverse. */
1149 t->t_curattr.ta_format &= ~TF_REVERSE;
1150 break;
1151 case 30: /* Set foreground color: black */
1152 case 31: /* Set foreground color: red */
1153 case 32: /* Set foreground color: green */
1154 case 33: /* Set foreground color: brown */
1155 case 34: /* Set foreground color: blue */
1156 case 35: /* Set foreground color: magenta */
1157 case 36: /* Set foreground color: cyan */
1158 case 37: /* Set foreground color: white */
1159 t->t_curattr.ta_fgcolor = n - 30;
1160 break;
1161 case 38: /* Set foreground color: 256 color mode */
1162 if (i + 2 >= ncmds || cmds[i + 1] != 5)
1163 continue;
1164 t->t_curattr.ta_fgcolor = cmds[i + 2];
1165 i += 2;
1166 break;
1167 case 39: /* Set default foreground color. */
1168 t->t_curattr.ta_fgcolor = t->t_defattr.ta_fgcolor;
1169 break;
1170 case 40: /* Set background color: black */
1171 case 41: /* Set background color: red */
1172 case 42: /* Set background color: green */
1173 case 43: /* Set background color: brown */
1174 case 44: /* Set background color: blue */
1175 case 45: /* Set background color: magenta */
1176 case 46: /* Set background color: cyan */
1177 case 47: /* Set background color: white */
1178 t->t_curattr.ta_bgcolor = n - 40;
1179 break;
1180 case 48: /* Set background color: 256 color mode */
1181 if (i + 2 >= ncmds || cmds[i + 1] != 5)
1182 continue;
1183 t->t_curattr.ta_bgcolor = cmds[i + 2];
1184 i += 2;
1185 break;
1186 case 49: /* Set default background color. */
1187 t->t_curattr.ta_bgcolor = t->t_defattr.ta_bgcolor;
1188 break;
1189 case 90: /* Set bright foreground color: black */
1190 case 91: /* Set bright foreground color: red */
1191 case 92: /* Set bright foreground color: green */
1192 case 93: /* Set bright foreground color: brown */
1193 case 94: /* Set bright foreground color: blue */
1194 case 95: /* Set bright foreground color: magenta */
1195 case 96: /* Set bright foreground color: cyan */
1196 case 97: /* Set bright foreground color: white */
1197 t->t_curattr.ta_fgcolor = n - 90 + 8;
1198 break;
1199 case 100: /* Set bright background color: black */
1200 case 101: /* Set bright background color: red */
1201 case 102: /* Set bright background color: green */
1202 case 103: /* Set bright background color: brown */
1203 case 104: /* Set bright background color: blue */
1204 case 105: /* Set bright background color: magenta */
1205 case 106: /* Set bright background color: cyan */
1206 case 107: /* Set bright background color: white */
1207 t->t_curattr.ta_bgcolor = n - 100 + 8;
1208 break;
1209 default:
1210 teken_printf("unsupported attribute %u\n", n);
1211 }
1212 }
1213 }
1214
1215 static void
1216 teken_subr_set_top_and_bottom_margins(teken_t *t, unsigned int top,
1217 unsigned int bottom)
1218 {
1219
1220 /* Adjust top row number. */
1221 if (top > 0)
1222 top--;
1223 /* Adjust bottom row number. */
1224 if (bottom == 0 || bottom > t->t_winsize.tp_row)
1225 bottom = t->t_winsize.tp_row;
1226
1227 /* Invalid arguments. */
1228 if (top >= bottom - 1) {
1229 top = 0;
1230 bottom = t->t_winsize.tp_row;
1231 }
1232
1233 /* Apply scrolling region. */
1234 t->t_scrollreg.ts_begin = top;
1235 t->t_scrollreg.ts_end = bottom;
1236 if (t->t_stateflags & TS_ORIGIN)
1237 t->t_originreg = t->t_scrollreg;
1238
1239 /* Home cursor to the top left of the scrolling region. */
1240 t->t_cursor.tp_row = t->t_originreg.ts_begin;
1241 t->t_cursor.tp_col = 0;
1242 t->t_stateflags &= ~TS_WRAPPED;
1243 teken_funcs_cursor(t);
1244 }
1245
1246 static void
1247 teken_subr_single_height_double_width_line(teken_t *t __unused)
1248 {
1249
1250 teken_printf("single height double width???\n");
1251 }
1252
1253 static void
1254 teken_subr_single_height_single_width_line(teken_t *t __unused)
1255 {
1256
1257 teken_printf("single height single width???\n");
1258 }
1259
1260 static void
1261 teken_subr_string_terminator(teken_t *t __unused)
1262 {
1263
1264 /*
1265 * Strings are already terminated in teken_input_char() when ^[
1266 * is inserted.
1267 */
1268 }
1269
1270 static void
1271 teken_subr_tab_clear(teken_t *t, unsigned int cmd)
1272 {
1273
1274 switch (cmd) {
1275 case 0:
1276 teken_tab_clear(t, t->t_cursor.tp_col);
1277 break;
1278 case 3:
1279 memset(&t->t_tabstops, 0, T_NUMCOL / 8);
1280 break;
1281 }
1282 }
1283
1284 static void
1285 teken_subr_vertical_position_absolute(teken_t *t, unsigned int row)
1286 {
1287
1288 t->t_cursor.tp_row = t->t_originreg.ts_begin + row - 1;
1289 if (t->t_cursor.tp_row >= t->t_originreg.ts_end)
1290 t->t_cursor.tp_row = t->t_originreg.ts_end - 1;
1291
1292 t->t_stateflags &= ~TS_WRAPPED;
1293 teken_funcs_cursor(t);
1294 }
Cache object: e555938045ada8393f439df42341f051
|