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 * $FreeBSD$ 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_resize(teken_t *t) 960 { 961 962 t->t_scrollreg.ts_begin = 0; 963 t->t_scrollreg.ts_end = t->t_winsize.tp_row; 964 t->t_originreg = t->t_scrollreg; 965 } 966 967 static void 968 teken_subr_do_reset(teken_t *t) 969 { 970 971 t->t_curattr = t->t_defattr; 972 t->t_cursor.tp_row = t->t_cursor.tp_col = 0; 973 t->t_scrollreg.ts_begin = 0; 974 t->t_scrollreg.ts_end = t->t_winsize.tp_row; 975 t->t_originreg = t->t_scrollreg; 976 t->t_stateflags &= TS_8BIT|TS_CONS25; 977 t->t_stateflags |= TS_AUTOWRAP; 978 979 t->t_scs[0] = teken_scs_us_ascii; 980 t->t_scs[1] = teken_scs_us_ascii; 981 t->t_curscs = 0; 982 983 teken_subr_save_cursor(t); 984 teken_tab_default(t); 985 } 986 987 static void 988 teken_subr_reset_to_initial_state(teken_t *t) 989 { 990 991 teken_subr_do_reset(t); 992 teken_subr_erase_display(t, 2); 993 teken_funcs_param(t, TP_SHOWCURSOR, 1); 994 teken_funcs_cursor(t); 995 } 996 997 static void 998 teken_subr_restore_cursor(teken_t *t) 999 { 1000 1001 t->t_cursor = t->t_saved_cursor; 1002 t->t_curattr = t->t_saved_curattr; 1003 t->t_scs[t->t_curscs] = t->t_saved_curscs; 1004 t->t_stateflags &= ~TS_WRAPPED; 1005 1006 /* Get out of origin mode when the cursor is moved outside. */ 1007 if (t->t_cursor.tp_row < t->t_originreg.ts_begin || 1008 t->t_cursor.tp_row >= t->t_originreg.ts_end) { 1009 t->t_stateflags &= ~TS_ORIGIN; 1010 t->t_originreg.ts_begin = 0; 1011 t->t_originreg.ts_end = t->t_winsize.tp_row; 1012 } 1013 1014 teken_funcs_cursor(t); 1015 } 1016 1017 static void 1018 teken_subr_reverse_index(teken_t *t) 1019 { 1020 1021 if (t->t_cursor.tp_row > t->t_scrollreg.ts_begin) { 1022 t->t_cursor.tp_row--; 1023 t->t_stateflags &= ~TS_WRAPPED; 1024 teken_funcs_cursor(t); 1025 } else { 1026 teken_subr_do_scroll(t, -1); 1027 } 1028 } 1029 1030 static void 1031 teken_subr_save_cursor(teken_t *t) 1032 { 1033 1034 t->t_saved_cursor = t->t_cursor; 1035 t->t_saved_curattr = t->t_curattr; 1036 t->t_saved_curscs = t->t_scs[t->t_curscs]; 1037 } 1038 1039 static void 1040 teken_subr_secondary_device_attributes(teken_t *t, unsigned int request) 1041 { 1042 1043 if (request == 0) { 1044 const char response[] = "\x1B[>0;10;0c"; 1045 teken_funcs_respond(t, response, sizeof response - 1); 1046 } else { 1047 teken_printf("Unknown DA2\n"); 1048 } 1049 } 1050 1051 static void 1052 teken_subr_set_dec_mode(teken_t *t, unsigned int cmd) 1053 { 1054 1055 switch (cmd) { 1056 case 1: /* Cursor keys mode. */ 1057 t->t_stateflags |= TS_CURSORKEYS; 1058 break; 1059 case 2: /* DECANM: ANSI/VT52 mode. */ 1060 teken_printf("DECSET VT52\n"); 1061 break; 1062 case 3: /* 132 column mode. */ 1063 teken_funcs_param(t, TP_132COLS, 1); 1064 teken_subr_reset_to_initial_state(t); 1065 break; 1066 case 5: /* Inverse video. */ 1067 teken_printf("DECSET inverse video\n"); 1068 break; 1069 case 6: /* Origin mode. */ 1070 t->t_stateflags |= TS_ORIGIN; 1071 t->t_originreg = t->t_scrollreg; 1072 t->t_cursor.tp_row = t->t_scrollreg.ts_begin; 1073 t->t_cursor.tp_col = 0; 1074 t->t_stateflags &= ~TS_WRAPPED; 1075 teken_funcs_cursor(t); 1076 break; 1077 case 7: /* Autowrap mode. */ 1078 t->t_stateflags |= TS_AUTOWRAP; 1079 break; 1080 case 8: /* Autorepeat mode. */ 1081 teken_funcs_param(t, TP_AUTOREPEAT, 1); 1082 break; 1083 case 25: /* Display cursor. */ 1084 teken_funcs_param(t, TP_SHOWCURSOR, 1); 1085 break; 1086 case 40: /* Allow 132 columns. */ 1087 teken_printf("DECSET allow 132\n"); 1088 break; 1089 case 45: /* Enable reverse wraparound. */ 1090 teken_printf("DECSET reverse wraparound\n"); 1091 break; 1092 case 47: /* Switch to alternate buffer. */ 1093 teken_printf("Switch away from alternate buffer\n"); 1094 break; 1095 case 1000: /* Mouse input. */ 1096 teken_funcs_param(t, TP_MOUSE, 1); 1097 break; 1098 default: 1099 teken_printf("Unknown DECSET: %u\n", cmd); 1100 } 1101 } 1102 1103 static void 1104 teken_subr_set_mode(teken_t *t, unsigned int cmd) 1105 { 1106 1107 switch (cmd) { 1108 case 4: 1109 teken_printf("Insert mode\n"); 1110 t->t_stateflags |= TS_INSERT; 1111 break; 1112 default: 1113 teken_printf("Unknown set mode: %u\n", cmd); 1114 } 1115 } 1116 1117 static void 1118 teken_subr_set_graphic_rendition(teken_t *t, unsigned int ncmds, 1119 unsigned int cmds[]) 1120 { 1121 unsigned int i, n; 1122 1123 /* No attributes means reset. */ 1124 if (ncmds == 0) { 1125 t->t_curattr = t->t_defattr; 1126 return; 1127 } 1128 1129 for (i = 0; i < ncmds; i++) { 1130 n = cmds[i]; 1131 1132 switch (n) { 1133 case 0: /* Reset. */ 1134 t->t_curattr = t->t_defattr; 1135 break; 1136 case 1: /* Bold. */ 1137 t->t_curattr.ta_format |= TF_BOLD; 1138 break; 1139 case 4: /* Underline. */ 1140 t->t_curattr.ta_format |= TF_UNDERLINE; 1141 break; 1142 case 5: /* Blink. */ 1143 t->t_curattr.ta_format |= TF_BLINK; 1144 break; 1145 case 7: /* Reverse. */ 1146 t->t_curattr.ta_format |= TF_REVERSE; 1147 break; 1148 case 22: /* Remove bold. */ 1149 t->t_curattr.ta_format &= ~TF_BOLD; 1150 break; 1151 case 24: /* Remove underline. */ 1152 t->t_curattr.ta_format &= ~TF_UNDERLINE; 1153 break; 1154 case 25: /* Remove blink. */ 1155 t->t_curattr.ta_format &= ~TF_BLINK; 1156 break; 1157 case 27: /* Remove reverse. */ 1158 t->t_curattr.ta_format &= ~TF_REVERSE; 1159 break; 1160 case 30: /* Set foreground color: black */ 1161 case 31: /* Set foreground color: red */ 1162 case 32: /* Set foreground color: green */ 1163 case 33: /* Set foreground color: brown */ 1164 case 34: /* Set foreground color: blue */ 1165 case 35: /* Set foreground color: magenta */ 1166 case 36: /* Set foreground color: cyan */ 1167 case 37: /* Set foreground color: white */ 1168 t->t_curattr.ta_fgcolor = n - 30; 1169 break; 1170 case 38: /* Set foreground color: 256 color mode */ 1171 if (i + 2 >= ncmds || cmds[i + 1] != 5) 1172 continue; 1173 t->t_curattr.ta_fgcolor = cmds[i + 2]; 1174 i += 2; 1175 break; 1176 case 39: /* Set default foreground color. */ 1177 t->t_curattr.ta_fgcolor = t->t_defattr.ta_fgcolor; 1178 break; 1179 case 40: /* Set background color: black */ 1180 case 41: /* Set background color: red */ 1181 case 42: /* Set background color: green */ 1182 case 43: /* Set background color: brown */ 1183 case 44: /* Set background color: blue */ 1184 case 45: /* Set background color: magenta */ 1185 case 46: /* Set background color: cyan */ 1186 case 47: /* Set background color: white */ 1187 t->t_curattr.ta_bgcolor = n - 40; 1188 break; 1189 case 48: /* Set background color: 256 color mode */ 1190 if (i + 2 >= ncmds || cmds[i + 1] != 5) 1191 continue; 1192 t->t_curattr.ta_bgcolor = cmds[i + 2]; 1193 i += 2; 1194 break; 1195 case 49: /* Set default background color. */ 1196 t->t_curattr.ta_bgcolor = t->t_defattr.ta_bgcolor; 1197 break; 1198 case 90: /* Set bright foreground color: black */ 1199 case 91: /* Set bright foreground color: red */ 1200 case 92: /* Set bright foreground color: green */ 1201 case 93: /* Set bright foreground color: brown */ 1202 case 94: /* Set bright foreground color: blue */ 1203 case 95: /* Set bright foreground color: magenta */ 1204 case 96: /* Set bright foreground color: cyan */ 1205 case 97: /* Set bright foreground color: white */ 1206 t->t_curattr.ta_fgcolor = n - 90 + 8; 1207 break; 1208 case 100: /* Set bright background color: black */ 1209 case 101: /* Set bright background color: red */ 1210 case 102: /* Set bright background color: green */ 1211 case 103: /* Set bright background color: brown */ 1212 case 104: /* Set bright background color: blue */ 1213 case 105: /* Set bright background color: magenta */ 1214 case 106: /* Set bright background color: cyan */ 1215 case 107: /* Set bright background color: white */ 1216 t->t_curattr.ta_bgcolor = n - 100 + 8; 1217 break; 1218 default: 1219 teken_printf("unsupported attribute %u\n", n); 1220 } 1221 } 1222 } 1223 1224 static void 1225 teken_subr_set_top_and_bottom_margins(teken_t *t, unsigned int top, 1226 unsigned int bottom) 1227 { 1228 1229 /* Adjust top row number. */ 1230 if (top > 0) 1231 top--; 1232 /* Adjust bottom row number. */ 1233 if (bottom == 0 || bottom > t->t_winsize.tp_row) 1234 bottom = t->t_winsize.tp_row; 1235 1236 /* Invalid arguments. */ 1237 if (top >= bottom - 1) { 1238 top = 0; 1239 bottom = t->t_winsize.tp_row; 1240 } 1241 1242 /* Apply scrolling region. */ 1243 t->t_scrollreg.ts_begin = top; 1244 t->t_scrollreg.ts_end = bottom; 1245 if (t->t_stateflags & TS_ORIGIN) 1246 t->t_originreg = t->t_scrollreg; 1247 1248 /* Home cursor to the top left of the scrolling region. */ 1249 t->t_cursor.tp_row = t->t_originreg.ts_begin; 1250 t->t_cursor.tp_col = 0; 1251 t->t_stateflags &= ~TS_WRAPPED; 1252 teken_funcs_cursor(t); 1253 } 1254 1255 static void 1256 teken_subr_single_height_double_width_line(teken_t *t __unused) 1257 { 1258 1259 teken_printf("single height double width???\n"); 1260 } 1261 1262 static void 1263 teken_subr_single_height_single_width_line(teken_t *t __unused) 1264 { 1265 1266 teken_printf("single height single width???\n"); 1267 } 1268 1269 static void 1270 teken_subr_string_terminator(teken_t *t __unused) 1271 { 1272 1273 /* 1274 * Strings are already terminated in teken_input_char() when ^[ 1275 * is inserted. 1276 */ 1277 } 1278 1279 static void 1280 teken_subr_tab_clear(teken_t *t, unsigned int cmd) 1281 { 1282 1283 switch (cmd) { 1284 case 0: 1285 teken_tab_clear(t, t->t_cursor.tp_col); 1286 break; 1287 case 3: 1288 memset(&t->t_tabstops, 0, T_NUMCOL / 8); 1289 break; 1290 } 1291 } 1292 1293 static void 1294 teken_subr_vertical_position_absolute(teken_t *t, unsigned int row) 1295 { 1296 1297 t->t_cursor.tp_row = t->t_originreg.ts_begin + row - 1; 1298 if (t->t_cursor.tp_row >= t->t_originreg.ts_end) 1299 t->t_cursor.tp_row = t->t_originreg.ts_end - 1; 1300 1301 t->t_stateflags &= ~TS_WRAPPED; 1302 teken_funcs_cursor(t); 1303 } 1304