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 teken_funcs_putchar(t, tp, c, &t->t_curattr); 795 796 if (width == 2 && tp->tp_col + 1 < t->t_winsize.tp_col) { 797 teken_pos_t tp2; 798 teken_attr_t attr; 799 800 /* Print second half of CJK fullwidth character. */ 801 tp2.tp_row = tp->tp_row; 802 tp2.tp_col = tp->tp_col + 1; 803 attr = t->t_curattr; 804 attr.ta_format |= TF_CJK_RIGHT; 805 teken_funcs_putchar(t, &tp2, c, &attr); 806 } 807 } 808 809 static void 810 teken_subr_regular_character(teken_t *t, teken_char_t c) 811 { 812 int width; 813 814 if (t->t_stateflags & TS_8BIT) { 815 if (!(t->t_stateflags & TS_CONS25) && (c <= 0x1b || c == 0x7f)) 816 return; 817 c = teken_scs_process(t, c); 818 width = 1; 819 } else { 820 c = teken_scs_process(t, c); 821 width = teken_wcwidth(c); 822 /* XXX: Don't process zero-width characters yet. */ 823 if (width <= 0) 824 return; 825 } 826 827 if (t->t_stateflags & TS_CONS25) { 828 teken_subr_do_putchar(t, &t->t_cursor, c, width); 829 t->t_cursor.tp_col += width; 830 831 if (t->t_cursor.tp_col >= t->t_winsize.tp_col) { 832 if (t->t_cursor.tp_row == t->t_scrollreg.ts_end - 1) { 833 /* Perform scrolling. */ 834 teken_subr_do_scroll(t, 1); 835 } else { 836 /* No scrolling needed. */ 837 if (t->t_cursor.tp_row < 838 t->t_winsize.tp_row - 1) 839 t->t_cursor.tp_row++; 840 } 841 t->t_cursor.tp_col = 0; 842 } 843 } else if (t->t_stateflags & TS_AUTOWRAP && 844 ((t->t_stateflags & TS_WRAPPED && 845 t->t_cursor.tp_col + 1 == t->t_winsize.tp_col) || 846 t->t_cursor.tp_col + width > t->t_winsize.tp_col)) { 847 teken_pos_t tp; 848 849 /* 850 * Perform line wrapping, if: 851 * - Autowrapping is enabled, and 852 * - We're in the wrapped state at the last column, or 853 * - The character to be printed does not fit anymore. 854 */ 855 if (t->t_cursor.tp_row == t->t_scrollreg.ts_end - 1) { 856 /* Perform scrolling. */ 857 teken_subr_do_scroll(t, 1); 858 tp.tp_row = t->t_scrollreg.ts_end - 1; 859 } else { 860 /* No scrolling needed. */ 861 tp.tp_row = t->t_cursor.tp_row + 1; 862 if (tp.tp_row == t->t_winsize.tp_row) { 863 /* 864 * Corner case: regular character 865 * outside scrolling region, but at the 866 * bottom of the screen. 867 */ 868 teken_subr_do_putchar(t, &t->t_cursor, 869 c, width); 870 return; 871 } 872 } 873 874 tp.tp_col = 0; 875 teken_subr_do_putchar(t, &tp, c, width); 876 877 t->t_cursor.tp_row = tp.tp_row; 878 t->t_cursor.tp_col = width; 879 t->t_stateflags &= ~TS_WRAPPED; 880 } else { 881 /* No line wrapping needed. */ 882 teken_subr_do_putchar(t, &t->t_cursor, c, width); 883 t->t_cursor.tp_col += width; 884 885 if (t->t_cursor.tp_col >= t->t_winsize.tp_col) { 886 t->t_stateflags |= TS_WRAPPED; 887 t->t_cursor.tp_col = t->t_winsize.tp_col - 1; 888 } else { 889 t->t_stateflags &= ~TS_WRAPPED; 890 } 891 } 892 893 teken_funcs_cursor(t); 894 } 895 896 static void 897 teken_subr_reset_dec_mode(teken_t *t, unsigned int cmd) 898 { 899 900 switch (cmd) { 901 case 1: /* Cursor keys mode. */ 902 t->t_stateflags &= ~TS_CURSORKEYS; 903 break; 904 case 2: /* DECANM: ANSI/VT52 mode. */ 905 teken_printf("DECRST VT52\n"); 906 break; 907 case 3: /* 132 column mode. */ 908 teken_funcs_param(t, TP_132COLS, 0); 909 teken_subr_reset_to_initial_state(t); 910 break; 911 case 5: /* Inverse video. */ 912 teken_printf("DECRST inverse video\n"); 913 break; 914 case 6: /* Origin mode. */ 915 t->t_stateflags &= ~TS_ORIGIN; 916 t->t_originreg.ts_begin = 0; 917 t->t_originreg.ts_end = t->t_winsize.tp_row; 918 t->t_cursor.tp_row = t->t_cursor.tp_col = 0; 919 t->t_stateflags &= ~TS_WRAPPED; 920 teken_funcs_cursor(t); 921 break; 922 case 7: /* Autowrap mode. */ 923 t->t_stateflags &= ~TS_AUTOWRAP; 924 break; 925 case 8: /* Autorepeat mode. */ 926 teken_funcs_param(t, TP_AUTOREPEAT, 0); 927 break; 928 case 25: /* Hide cursor. */ 929 teken_funcs_param(t, TP_SHOWCURSOR, 0); 930 break; 931 case 40: /* Disallow 132 columns. */ 932 teken_printf("DECRST allow 132\n"); 933 break; 934 case 45: /* Disable reverse wraparound. */ 935 teken_printf("DECRST reverse wraparound\n"); 936 break; 937 case 47: /* Switch to alternate buffer. */ 938 teken_printf("Switch to alternate buffer\n"); 939 break; 940 case 1000: /* Mouse input. */ 941 teken_funcs_param(t, TP_MOUSE, 0); 942 break; 943 default: 944 teken_printf("Unknown DECRST: %u\n", cmd); 945 } 946 } 947 948 static void 949 teken_subr_reset_mode(teken_t *t, unsigned int cmd) 950 { 951 952 switch (cmd) { 953 case 4: 954 t->t_stateflags &= ~TS_INSERT; 955 break; 956 default: 957 teken_printf("Unknown reset mode: %u\n", cmd); 958 } 959 } 960 961 static void 962 teken_subr_do_resize(teken_t *t) 963 { 964 965 t->t_scrollreg.ts_begin = 0; 966 t->t_scrollreg.ts_end = t->t_winsize.tp_row; 967 t->t_originreg = t->t_scrollreg; 968 } 969 970 static void 971 teken_subr_do_reset(teken_t *t) 972 { 973 974 t->t_curattr = t->t_defattr; 975 t->t_cursor.tp_row = t->t_cursor.tp_col = 0; 976 t->t_scrollreg.ts_begin = 0; 977 t->t_scrollreg.ts_end = t->t_winsize.tp_row; 978 t->t_originreg = t->t_scrollreg; 979 t->t_stateflags &= TS_8BIT|TS_CONS25; 980 t->t_stateflags |= TS_AUTOWRAP; 981 982 t->t_scs[0] = teken_scs_us_ascii; 983 t->t_scs[1] = teken_scs_us_ascii; 984 t->t_curscs = 0; 985 986 teken_subr_save_cursor(t); 987 teken_tab_default(t); 988 } 989 990 static void 991 teken_subr_reset_to_initial_state(teken_t *t) 992 { 993 994 teken_subr_do_reset(t); 995 teken_subr_erase_display(t, 2); 996 teken_funcs_param(t, TP_SHOWCURSOR, 1); 997 teken_funcs_cursor(t); 998 } 999 1000 static void 1001 teken_subr_restore_cursor(teken_t *t) 1002 { 1003 1004 t->t_cursor = t->t_saved_cursor; 1005 t->t_curattr = t->t_saved_curattr; 1006 t->t_scs[t->t_curscs] = t->t_saved_curscs; 1007 t->t_stateflags &= ~TS_WRAPPED; 1008 1009 /* Get out of origin mode when the cursor is moved outside. */ 1010 if (t->t_cursor.tp_row < t->t_originreg.ts_begin || 1011 t->t_cursor.tp_row >= t->t_originreg.ts_end) { 1012 t->t_stateflags &= ~TS_ORIGIN; 1013 t->t_originreg.ts_begin = 0; 1014 t->t_originreg.ts_end = t->t_winsize.tp_row; 1015 } 1016 1017 teken_funcs_cursor(t); 1018 } 1019 1020 static void 1021 teken_subr_reverse_index(teken_t *t) 1022 { 1023 1024 if (t->t_cursor.tp_row > t->t_scrollreg.ts_begin) { 1025 t->t_cursor.tp_row--; 1026 t->t_stateflags &= ~TS_WRAPPED; 1027 teken_funcs_cursor(t); 1028 } else { 1029 teken_subr_do_scroll(t, -1); 1030 } 1031 } 1032 1033 static void 1034 teken_subr_save_cursor(teken_t *t) 1035 { 1036 1037 t->t_saved_cursor = t->t_cursor; 1038 t->t_saved_curattr = t->t_curattr; 1039 t->t_saved_curscs = t->t_scs[t->t_curscs]; 1040 } 1041 1042 static void 1043 teken_subr_secondary_device_attributes(teken_t *t, unsigned int request) 1044 { 1045 1046 if (request == 0) { 1047 const char response[] = "\x1B[>0;10;0c"; 1048 teken_funcs_respond(t, response, sizeof response - 1); 1049 } else { 1050 teken_printf("Unknown DA2\n"); 1051 } 1052 } 1053 1054 static void 1055 teken_subr_set_dec_mode(teken_t *t, unsigned int cmd) 1056 { 1057 1058 switch (cmd) { 1059 case 1: /* Cursor keys mode. */ 1060 t->t_stateflags |= TS_CURSORKEYS; 1061 break; 1062 case 2: /* DECANM: ANSI/VT52 mode. */ 1063 teken_printf("DECSET VT52\n"); 1064 break; 1065 case 3: /* 132 column mode. */ 1066 teken_funcs_param(t, TP_132COLS, 1); 1067 teken_subr_reset_to_initial_state(t); 1068 break; 1069 case 5: /* Inverse video. */ 1070 teken_printf("DECSET inverse video\n"); 1071 break; 1072 case 6: /* Origin mode. */ 1073 t->t_stateflags |= TS_ORIGIN; 1074 t->t_originreg = t->t_scrollreg; 1075 t->t_cursor.tp_row = t->t_scrollreg.ts_begin; 1076 t->t_cursor.tp_col = 0; 1077 t->t_stateflags &= ~TS_WRAPPED; 1078 teken_funcs_cursor(t); 1079 break; 1080 case 7: /* Autowrap mode. */ 1081 t->t_stateflags |= TS_AUTOWRAP; 1082 break; 1083 case 8: /* Autorepeat mode. */ 1084 teken_funcs_param(t, TP_AUTOREPEAT, 1); 1085 break; 1086 case 25: /* Display cursor. */ 1087 teken_funcs_param(t, TP_SHOWCURSOR, 1); 1088 break; 1089 case 40: /* Allow 132 columns. */ 1090 teken_printf("DECSET allow 132\n"); 1091 break; 1092 case 45: /* Enable reverse wraparound. */ 1093 teken_printf("DECSET reverse wraparound\n"); 1094 break; 1095 case 47: /* Switch to alternate buffer. */ 1096 teken_printf("Switch away from alternate buffer\n"); 1097 break; 1098 case 1000: /* Mouse input. */ 1099 teken_funcs_param(t, TP_MOUSE, 1); 1100 break; 1101 default: 1102 teken_printf("Unknown DECSET: %u\n", cmd); 1103 } 1104 } 1105 1106 static void 1107 teken_subr_set_mode(teken_t *t, unsigned int cmd) 1108 { 1109 1110 switch (cmd) { 1111 case 4: 1112 teken_printf("Insert mode\n"); 1113 t->t_stateflags |= TS_INSERT; 1114 break; 1115 default: 1116 teken_printf("Unknown set mode: %u\n", cmd); 1117 } 1118 } 1119 1120 static void 1121 teken_subr_set_graphic_rendition(teken_t *t, unsigned int ncmds, 1122 unsigned int cmds[]) 1123 { 1124 unsigned int i, n; 1125 1126 /* No attributes means reset. */ 1127 if (ncmds == 0) { 1128 t->t_curattr = t->t_defattr; 1129 return; 1130 } 1131 1132 for (i = 0; i < ncmds; i++) { 1133 n = cmds[i]; 1134 1135 switch (n) { 1136 case 0: /* Reset. */ 1137 t->t_curattr = t->t_defattr; 1138 break; 1139 case 1: /* Bold. */ 1140 t->t_curattr.ta_format |= TF_BOLD; 1141 break; 1142 case 4: /* Underline. */ 1143 t->t_curattr.ta_format |= TF_UNDERLINE; 1144 break; 1145 case 5: /* Blink. */ 1146 t->t_curattr.ta_format |= TF_BLINK; 1147 break; 1148 case 7: /* Reverse. */ 1149 t->t_curattr.ta_format |= TF_REVERSE; 1150 break; 1151 case 22: /* Remove bold. */ 1152 t->t_curattr.ta_format &= ~TF_BOLD; 1153 break; 1154 case 24: /* Remove underline. */ 1155 t->t_curattr.ta_format &= ~TF_UNDERLINE; 1156 break; 1157 case 25: /* Remove blink. */ 1158 t->t_curattr.ta_format &= ~TF_BLINK; 1159 break; 1160 case 27: /* Remove reverse. */ 1161 t->t_curattr.ta_format &= ~TF_REVERSE; 1162 break; 1163 case 30: /* Set foreground color: black */ 1164 case 31: /* Set foreground color: red */ 1165 case 32: /* Set foreground color: green */ 1166 case 33: /* Set foreground color: brown */ 1167 case 34: /* Set foreground color: blue */ 1168 case 35: /* Set foreground color: magenta */ 1169 case 36: /* Set foreground color: cyan */ 1170 case 37: /* Set foreground color: white */ 1171 t->t_curattr.ta_fgcolor = n - 30; 1172 break; 1173 case 38: /* Set foreground color: 256 color mode */ 1174 if (i + 2 >= ncmds || cmds[i + 1] != 5) 1175 continue; 1176 t->t_curattr.ta_fgcolor = cmds[i + 2]; 1177 i += 2; 1178 break; 1179 case 39: /* Set default foreground color. */ 1180 t->t_curattr.ta_fgcolor = t->t_defattr.ta_fgcolor; 1181 break; 1182 case 40: /* Set background color: black */ 1183 case 41: /* Set background color: red */ 1184 case 42: /* Set background color: green */ 1185 case 43: /* Set background color: brown */ 1186 case 44: /* Set background color: blue */ 1187 case 45: /* Set background color: magenta */ 1188 case 46: /* Set background color: cyan */ 1189 case 47: /* Set background color: white */ 1190 t->t_curattr.ta_bgcolor = n - 40; 1191 break; 1192 case 48: /* Set background color: 256 color mode */ 1193 if (i + 2 >= ncmds || cmds[i + 1] != 5) 1194 continue; 1195 t->t_curattr.ta_bgcolor = cmds[i + 2]; 1196 i += 2; 1197 break; 1198 case 49: /* Set default background color. */ 1199 t->t_curattr.ta_bgcolor = t->t_defattr.ta_bgcolor; 1200 break; 1201 case 90: /* Set bright foreground color: black */ 1202 case 91: /* Set bright foreground color: red */ 1203 case 92: /* Set bright foreground color: green */ 1204 case 93: /* Set bright foreground color: brown */ 1205 case 94: /* Set bright foreground color: blue */ 1206 case 95: /* Set bright foreground color: magenta */ 1207 case 96: /* Set bright foreground color: cyan */ 1208 case 97: /* Set bright foreground color: white */ 1209 t->t_curattr.ta_fgcolor = n - 90 + 8; 1210 break; 1211 case 100: /* Set bright background color: black */ 1212 case 101: /* Set bright background color: red */ 1213 case 102: /* Set bright background color: green */ 1214 case 103: /* Set bright background color: brown */ 1215 case 104: /* Set bright background color: blue */ 1216 case 105: /* Set bright background color: magenta */ 1217 case 106: /* Set bright background color: cyan */ 1218 case 107: /* Set bright background color: white */ 1219 t->t_curattr.ta_bgcolor = n - 100 + 8; 1220 break; 1221 default: 1222 teken_printf("unsupported attribute %u\n", n); 1223 } 1224 } 1225 } 1226 1227 static void 1228 teken_subr_set_top_and_bottom_margins(teken_t *t, unsigned int top, 1229 unsigned int bottom) 1230 { 1231 1232 /* Adjust top row number. */ 1233 if (top > 0) 1234 top--; 1235 /* Adjust bottom row number. */ 1236 if (bottom == 0 || bottom > t->t_winsize.tp_row) 1237 bottom = t->t_winsize.tp_row; 1238 1239 /* Invalid arguments. */ 1240 if (top >= bottom - 1) { 1241 top = 0; 1242 bottom = t->t_winsize.tp_row; 1243 } 1244 1245 /* Apply scrolling region. */ 1246 t->t_scrollreg.ts_begin = top; 1247 t->t_scrollreg.ts_end = bottom; 1248 if (t->t_stateflags & TS_ORIGIN) 1249 t->t_originreg = t->t_scrollreg; 1250 1251 /* Home cursor to the top left of the scrolling region. */ 1252 t->t_cursor.tp_row = t->t_originreg.ts_begin; 1253 t->t_cursor.tp_col = 0; 1254 t->t_stateflags &= ~TS_WRAPPED; 1255 teken_funcs_cursor(t); 1256 } 1257 1258 static void 1259 teken_subr_single_height_double_width_line(teken_t *t __unused) 1260 { 1261 1262 teken_printf("single height double width???\n"); 1263 } 1264 1265 static void 1266 teken_subr_single_height_single_width_line(teken_t *t __unused) 1267 { 1268 1269 teken_printf("single height single width???\n"); 1270 } 1271 1272 static void 1273 teken_subr_string_terminator(teken_t *t __unused) 1274 { 1275 1276 /* 1277 * Strings are already terminated in teken_input_char() when ^[ 1278 * is inserted. 1279 */ 1280 } 1281 1282 static void 1283 teken_subr_tab_clear(teken_t *t, unsigned int cmd) 1284 { 1285 1286 switch (cmd) { 1287 case 0: 1288 teken_tab_clear(t, t->t_cursor.tp_col); 1289 break; 1290 case 3: 1291 memset(&t->t_tabstops, 0, T_NUMCOL / 8); 1292 break; 1293 } 1294 } 1295 1296 static void 1297 teken_subr_vertical_position_absolute(teken_t *t, unsigned int row) 1298 { 1299 1300 t->t_cursor.tp_row = t->t_originreg.ts_begin + row - 1; 1301 if (t->t_cursor.tp_row >= t->t_originreg.ts_end) 1302 t->t_cursor.tp_row = t->t_originreg.ts_end - 1; 1303 1304 t->t_stateflags &= ~TS_WRAPPED; 1305 teken_funcs_cursor(t); 1306 } 1307