| 1 | /* |
| 2 | * Jexer - Java Text User Interface |
| 3 | * |
| 4 | * The MIT License (MIT) |
| 5 | * |
| 6 | * Copyright (C) 2016 Kevin Lamonte |
| 7 | * |
| 8 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 9 | * copy of this software and associated documentation files (the "Software"), |
| 10 | * to deal in the Software without restriction, including without limitation |
| 11 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 12 | * and/or sell copies of the Software, and to permit persons to whom the |
| 13 | * Software is furnished to do so, subject to the following conditions: |
| 14 | * |
| 15 | * The above copyright notice and this permission notice shall be included in |
| 16 | * all copies or substantial portions of the Software. |
| 17 | * |
| 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 20 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 21 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 22 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 23 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| 24 | * DEALINGS IN THE SOFTWARE. |
| 25 | * |
| 26 | * @author Kevin Lamonte [kevin.lamonte@gmail.com] |
| 27 | * @version 1 |
| 28 | */ |
| 29 | package jexer.tterminal; |
| 30 | |
| 31 | import java.io.InputStream; |
| 32 | import java.io.InputStreamReader; |
| 33 | import java.io.IOException; |
| 34 | import java.io.OutputStream; |
| 35 | import java.io.OutputStreamWriter; |
| 36 | import java.io.Reader; |
| 37 | import java.io.UnsupportedEncodingException; |
| 38 | import java.io.Writer; |
| 39 | import java.util.ArrayList; |
| 40 | import java.util.Collections; |
| 41 | import java.util.LinkedList; |
| 42 | import java.util.List; |
| 43 | |
| 44 | import jexer.TKeypress; |
| 45 | import jexer.event.TMouseEvent; |
| 46 | import jexer.bits.Color; |
| 47 | import jexer.bits.Cell; |
| 48 | import jexer.bits.CellAttributes; |
| 49 | import static jexer.TKeypress.*; |
| 50 | |
| 51 | /** |
| 52 | * This implements a complex ANSI ECMA-48/ISO 6429/ANSI X3.64 type consoles, |
| 53 | * including a scrollback buffer. |
| 54 | * |
| 55 | * <p> |
| 56 | * It currently implements VT100, VT102, VT220, and XTERM with the following |
| 57 | * caveats: |
| 58 | * |
| 59 | * <p> |
| 60 | * - The vttest scenario for VT220 8-bit controls (11.1.2.3) reports a |
| 61 | * failure with XTERM. This is due to vttest failing to decode the UTF-8 |
| 62 | * stream. |
| 63 | * |
| 64 | * <p> |
| 65 | * - Smooth scrolling, printing, keyboard locking, keyboard leds, and tests |
| 66 | * from VT100 are not supported. |
| 67 | * |
| 68 | * <p> |
| 69 | * - User-defined keys (DECUDK), downloadable fonts (DECDLD), and VT100/ANSI |
| 70 | * compatibility mode (DECSCL) from VT220 are not supported. (Also, |
| 71 | * because DECSCL is not supported, it will fail the last part of the |
| 72 | * vttest "Test of VT52 mode" if DeviceType is set to VT220.) |
| 73 | * |
| 74 | * <p> |
| 75 | * - Numeric/application keys from the number pad are not supported because |
| 76 | * they are not exposed from the TKeypress API. |
| 77 | * |
| 78 | * <p> |
| 79 | * - VT52 HOLD SCREEN mode is not supported. |
| 80 | * |
| 81 | * <p> |
| 82 | * - In VT52 graphics mode, the 3/, 5/, and 7/ characters (fraction |
| 83 | * numerators) are not rendered correctly. |
| 84 | * |
| 85 | * <p> |
| 86 | * - All data meant for the 'printer' (CSI Pc ? i) is discarded. |
| 87 | */ |
| 88 | public class ECMA48 implements Runnable { |
| 89 | |
| 90 | /** |
| 91 | * The emulator can emulate several kinds of terminals. |
| 92 | */ |
| 93 | public enum DeviceType { |
| 94 | /** |
| 95 | * DEC VT100 but also including the three VT102 functions. |
| 96 | */ |
| 97 | VT100, |
| 98 | |
| 99 | /** |
| 100 | * DEC VT102. |
| 101 | */ |
| 102 | VT102, |
| 103 | |
| 104 | /** |
| 105 | * DEC VT220. |
| 106 | */ |
| 107 | VT220, |
| 108 | |
| 109 | /** |
| 110 | * A subset of xterm. |
| 111 | */ |
| 112 | XTERM |
| 113 | } |
| 114 | |
| 115 | /** |
| 116 | * Return the proper primary Device Attributes string. |
| 117 | * |
| 118 | * @return string to send to remote side that is appropriate for the |
| 119 | * this.type |
| 120 | */ |
| 121 | private String deviceTypeResponse() { |
| 122 | switch (type) { |
| 123 | case VT100: |
| 124 | // "I am a VT100 with advanced video option" (often VT102) |
| 125 | return "\033[?1;2c"; |
| 126 | |
| 127 | case VT102: |
| 128 | // "I am a VT102" |
| 129 | return "\033[?6c"; |
| 130 | |
| 131 | case VT220: |
| 132 | // "I am a VT220" - 7 bit version |
| 133 | if (!s8c1t) { |
| 134 | return "\033[?62;1;6c"; |
| 135 | } |
| 136 | // "I am a VT220" - 8 bit version |
| 137 | return "\u009b?62;1;6c"; |
| 138 | case XTERM: |
| 139 | // "I am a VT100 with advanced video option" (often VT102) |
| 140 | return "\033[?1;2c"; |
| 141 | default: |
| 142 | throw new IllegalArgumentException("Invalid device type: " + type); |
| 143 | } |
| 144 | } |
| 145 | |
| 146 | /** |
| 147 | * Return the proper TERM environment variable for this device type. |
| 148 | * |
| 149 | * @param deviceType DeviceType.VT100, DeviceType, XTERM, etc. |
| 150 | * @return "vt100", "xterm", etc. |
| 151 | */ |
| 152 | public static String deviceTypeTerm(final DeviceType deviceType) { |
| 153 | switch (deviceType) { |
| 154 | case VT100: |
| 155 | return "vt100"; |
| 156 | |
| 157 | case VT102: |
| 158 | return "vt102"; |
| 159 | |
| 160 | case VT220: |
| 161 | return "vt220"; |
| 162 | |
| 163 | case XTERM: |
| 164 | return "xterm"; |
| 165 | |
| 166 | default: |
| 167 | throw new IllegalArgumentException("Invalid device type: " |
| 168 | + deviceType); |
| 169 | } |
| 170 | } |
| 171 | |
| 172 | /** |
| 173 | * Return the proper LANG for this device type. Only XTERM devices know |
| 174 | * about UTF-8, the others are defined by their standard to be either |
| 175 | * 7-bit or 8-bit characters only. |
| 176 | * |
| 177 | * @param deviceType DeviceType.VT100, DeviceType, XTERM, etc. |
| 178 | * @param baseLang a base language without UTF-8 flag such as "C" or |
| 179 | * "en_US" |
| 180 | * @return "en_US", "en_US.UTF-8", etc. |
| 181 | */ |
| 182 | public static String deviceTypeLang(final DeviceType deviceType, |
| 183 | final String baseLang) { |
| 184 | |
| 185 | switch (deviceType) { |
| 186 | |
| 187 | case VT100: |
| 188 | case VT102: |
| 189 | case VT220: |
| 190 | return baseLang; |
| 191 | |
| 192 | case XTERM: |
| 193 | return baseLang + ".UTF-8"; |
| 194 | |
| 195 | default: |
| 196 | throw new IllegalArgumentException("Invalid device type: " |
| 197 | + deviceType); |
| 198 | } |
| 199 | } |
| 200 | |
| 201 | /** |
| 202 | * Write a string directly to the remote side. |
| 203 | * |
| 204 | * @param str string to send |
| 205 | */ |
| 206 | private void writeRemote(final String str) { |
| 207 | if (stopReaderThread) { |
| 208 | // Reader hit EOF, bail out now. |
| 209 | close(); |
| 210 | return; |
| 211 | } |
| 212 | |
| 213 | // System.err.printf("writeRemote() '%s'\n", str); |
| 214 | |
| 215 | switch (type) { |
| 216 | case VT100: |
| 217 | case VT102: |
| 218 | case VT220: |
| 219 | if (outputStream == null) { |
| 220 | return; |
| 221 | } |
| 222 | try { |
| 223 | for (int i = 0; i < str.length(); i++) { |
| 224 | outputStream.write(str.charAt(i)); |
| 225 | } |
| 226 | outputStream.flush(); |
| 227 | } catch (IOException e) { |
| 228 | // Assume EOF |
| 229 | close(); |
| 230 | } |
| 231 | break; |
| 232 | case XTERM: |
| 233 | if (output == null) { |
| 234 | return; |
| 235 | } |
| 236 | try { |
| 237 | output.write(str); |
| 238 | output.flush(); |
| 239 | } catch (IOException e) { |
| 240 | // Assume EOF |
| 241 | close(); |
| 242 | } |
| 243 | break; |
| 244 | default: |
| 245 | throw new IllegalArgumentException("Invalid device type: " + type); |
| 246 | } |
| 247 | } |
| 248 | |
| 249 | /** |
| 250 | * Close the input and output streams and stop the reader thread. Note |
| 251 | * that it is safe to call this multiple times. |
| 252 | */ |
| 253 | public final void close() { |
| 254 | |
| 255 | // Synchronize so we don't stomp on the reader thread. |
| 256 | synchronized (this) { |
| 257 | |
| 258 | // Close the input stream |
| 259 | switch (type) { |
| 260 | case VT100: |
| 261 | case VT102: |
| 262 | case VT220: |
| 263 | if (inputStream != null) { |
| 264 | try { |
| 265 | inputStream.close(); |
| 266 | } catch (IOException e) { |
| 267 | // SQUASH |
| 268 | } |
| 269 | inputStream = null; |
| 270 | } |
| 271 | break; |
| 272 | case XTERM: |
| 273 | if (input != null) { |
| 274 | try { |
| 275 | input.close(); |
| 276 | } catch (IOException e) { |
| 277 | // SQUASH |
| 278 | } |
| 279 | input = null; |
| 280 | inputStream = null; |
| 281 | } |
| 282 | break; |
| 283 | } |
| 284 | |
| 285 | // Tell the reader thread to stop looking at input. |
| 286 | if (stopReaderThread == false) { |
| 287 | stopReaderThread = true; |
| 288 | try { |
| 289 | readerThread.join(); |
| 290 | } catch (InterruptedException e) { |
| 291 | e.printStackTrace(); |
| 292 | } |
| 293 | } |
| 294 | |
| 295 | // Close the output stream. |
| 296 | switch (type) { |
| 297 | case VT100: |
| 298 | case VT102: |
| 299 | case VT220: |
| 300 | if (outputStream != null) { |
| 301 | try { |
| 302 | outputStream.close(); |
| 303 | } catch (IOException e) { |
| 304 | // SQUASH |
| 305 | } |
| 306 | outputStream = null; |
| 307 | } |
| 308 | break; |
| 309 | case XTERM: |
| 310 | if (output != null) { |
| 311 | try { |
| 312 | output.close(); |
| 313 | } catch (IOException e) { |
| 314 | // SQUASH |
| 315 | } |
| 316 | output = null; |
| 317 | } |
| 318 | break; |
| 319 | default: |
| 320 | throw new IllegalArgumentException("Invalid device type: " |
| 321 | + type); |
| 322 | } |
| 323 | } // synchronized (this) |
| 324 | } |
| 325 | |
| 326 | /** |
| 327 | * When true, the reader thread is expected to exit. |
| 328 | */ |
| 329 | private volatile boolean stopReaderThread = false; |
| 330 | |
| 331 | /** |
| 332 | * The reader thread. |
| 333 | */ |
| 334 | private Thread readerThread = null; |
| 335 | |
| 336 | /** |
| 337 | * See if the reader thread is still running. |
| 338 | * |
| 339 | * @return if true, we are still connected to / reading from the remote |
| 340 | * side |
| 341 | */ |
| 342 | public final boolean isReading() { |
| 343 | return (!stopReaderThread); |
| 344 | } |
| 345 | |
| 346 | /** |
| 347 | * The type of emulator to be. |
| 348 | */ |
| 349 | private DeviceType type = DeviceType.VT102; |
| 350 | |
| 351 | /** |
| 352 | * Obtain a new blank display line for an external user |
| 353 | * (e.g. TTerminalWindow). |
| 354 | * |
| 355 | * @return new blank line |
| 356 | */ |
| 357 | public final DisplayLine getBlankDisplayLine() { |
| 358 | return new DisplayLine(currentState.attr); |
| 359 | } |
| 360 | |
| 361 | /** |
| 362 | * The scrollback buffer characters + attributes. |
| 363 | */ |
| 364 | private volatile List<DisplayLine> scrollback; |
| 365 | |
| 366 | /** |
| 367 | * Get the scrollback buffer. |
| 368 | * |
| 369 | * @return the scrollback buffer |
| 370 | */ |
| 371 | public final List<DisplayLine> getScrollbackBuffer() { |
| 372 | return scrollback; |
| 373 | } |
| 374 | |
| 375 | /** |
| 376 | * The raw display buffer characters + attributes. |
| 377 | */ |
| 378 | private volatile List<DisplayLine> display; |
| 379 | |
| 380 | /** |
| 381 | * Get the display buffer. |
| 382 | * |
| 383 | * @return the display buffer |
| 384 | */ |
| 385 | public final List<DisplayLine> getDisplayBuffer() { |
| 386 | return display; |
| 387 | } |
| 388 | |
| 389 | /** |
| 390 | * The terminal's input. For type == XTERM, this is an InputStreamReader |
| 391 | * with UTF-8 encoding. |
| 392 | */ |
| 393 | private Reader input; |
| 394 | |
| 395 | /** |
| 396 | * The terminal's raw InputStream. This is used for type != XTERM. |
| 397 | */ |
| 398 | private volatile InputStream inputStream; |
| 399 | |
| 400 | /** |
| 401 | * The terminal's output. For type == XTERM, this wraps an |
| 402 | * OutputStreamWriter with UTF-8 encoding. |
| 403 | */ |
| 404 | private Writer output; |
| 405 | |
| 406 | /** |
| 407 | * The terminal's raw OutputStream. This is used for type != XTERM. |
| 408 | */ |
| 409 | private OutputStream outputStream; |
| 410 | |
| 411 | /** |
| 412 | * Parser character scan states. |
| 413 | */ |
| 414 | enum ScanState { |
| 415 | GROUND, |
| 416 | ESCAPE, |
| 417 | ESCAPE_INTERMEDIATE, |
| 418 | CSI_ENTRY, |
| 419 | CSI_PARAM, |
| 420 | CSI_INTERMEDIATE, |
| 421 | CSI_IGNORE, |
| 422 | DCS_ENTRY, |
| 423 | DCS_INTERMEDIATE, |
| 424 | DCS_PARAM, |
| 425 | DCS_PASSTHROUGH, |
| 426 | DCS_IGNORE, |
| 427 | SOSPMAPC_STRING, |
| 428 | OSC_STRING, |
| 429 | VT52_DIRECT_CURSOR_ADDRESS |
| 430 | } |
| 431 | |
| 432 | /** |
| 433 | * Current scanning state. |
| 434 | */ |
| 435 | private ScanState scanState; |
| 436 | |
| 437 | /** |
| 438 | * The selected number pad mode (DECKPAM, DECKPNM). We record this, but |
| 439 | * can't really use it in keypress() because we do not see number pad |
| 440 | * events from TKeypress. |
| 441 | */ |
| 442 | private enum KeypadMode { |
| 443 | Application, |
| 444 | Numeric |
| 445 | } |
| 446 | |
| 447 | /** |
| 448 | * Arrow keys can emit three different sequences (DECCKM or VT52 |
| 449 | * submode). |
| 450 | */ |
| 451 | private enum ArrowKeyMode { |
| 452 | VT52, |
| 453 | ANSI, |
| 454 | VT100 |
| 455 | } |
| 456 | |
| 457 | /** |
| 458 | * Available character sets for GL, GR, G0, G1, G2, G3. |
| 459 | */ |
| 460 | private enum CharacterSet { |
| 461 | US, |
| 462 | UK, |
| 463 | DRAWING, |
| 464 | ROM, |
| 465 | ROM_SPECIAL, |
| 466 | VT52_GRAPHICS, |
| 467 | DEC_SUPPLEMENTAL, |
| 468 | NRC_DUTCH, |
| 469 | NRC_FINNISH, |
| 470 | NRC_FRENCH, |
| 471 | NRC_FRENCH_CA, |
| 472 | NRC_GERMAN, |
| 473 | NRC_ITALIAN, |
| 474 | NRC_NORWEGIAN, |
| 475 | NRC_SPANISH, |
| 476 | NRC_SWEDISH, |
| 477 | NRC_SWISS |
| 478 | } |
| 479 | |
| 480 | /** |
| 481 | * Single-shift states used by the C1 control characters SS2 (0x8E) and |
| 482 | * SS3 (0x8F). |
| 483 | */ |
| 484 | private enum Singleshift { |
| 485 | NONE, |
| 486 | SS2, |
| 487 | SS3 |
| 488 | } |
| 489 | |
| 490 | /** |
| 491 | * VT220+ lockshift states. |
| 492 | */ |
| 493 | private enum LockshiftMode { |
| 494 | NONE, |
| 495 | G1_GR, |
| 496 | G2_GR, |
| 497 | G2_GL, |
| 498 | G3_GR, |
| 499 | G3_GL |
| 500 | } |
| 501 | |
| 502 | /** |
| 503 | * XTERM mouse reporting protocols. |
| 504 | */ |
| 505 | private enum MouseProtocol { |
| 506 | OFF, |
| 507 | X10, |
| 508 | NORMAL, |
| 509 | BUTTONEVENT, |
| 510 | ANYEVENT |
| 511 | } |
| 512 | |
| 513 | /** |
| 514 | * Which mouse protocol is active. |
| 515 | */ |
| 516 | private MouseProtocol mouseProtocol = MouseProtocol.OFF; |
| 517 | |
| 518 | /** |
| 519 | * XTERM mouse reporting encodings. |
| 520 | */ |
| 521 | private enum MouseEncoding { |
| 522 | X10, |
| 523 | UTF8, |
| 524 | SGR |
| 525 | } |
| 526 | |
| 527 | /** |
| 528 | * Which mouse encoding is active. |
| 529 | */ |
| 530 | private MouseEncoding mouseEncoding = MouseEncoding.X10; |
| 531 | |
| 532 | /** |
| 533 | * Physical display width. We start at 80x24, but the user can resize us |
| 534 | * bigger/smaller. |
| 535 | */ |
| 536 | private int width; |
| 537 | |
| 538 | /** |
| 539 | * Get the display width. |
| 540 | * |
| 541 | * @return the width (usually 80 or 132) |
| 542 | */ |
| 543 | public final int getWidth() { |
| 544 | return width; |
| 545 | } |
| 546 | |
| 547 | /** |
| 548 | * Physical display height. We start at 80x24, but the user can resize |
| 549 | * us bigger/smaller. |
| 550 | */ |
| 551 | private int height; |
| 552 | |
| 553 | /** |
| 554 | * Get the display height. |
| 555 | * |
| 556 | * @return the height (usually 24) |
| 557 | */ |
| 558 | public final int getHeight() { |
| 559 | return height; |
| 560 | } |
| 561 | |
| 562 | /** |
| 563 | * Top margin of the scrolling region. |
| 564 | */ |
| 565 | private int scrollRegionTop; |
| 566 | |
| 567 | /** |
| 568 | * Bottom margin of the scrolling region. |
| 569 | */ |
| 570 | private int scrollRegionBottom; |
| 571 | |
| 572 | /** |
| 573 | * Right margin column number. This can be selected by the remote side |
| 574 | * to be 80/132 (rightMargin values 79/131), or it can be (width - 1). |
| 575 | */ |
| 576 | private int rightMargin; |
| 577 | |
| 578 | /** |
| 579 | * Last character printed. |
| 580 | */ |
| 581 | private char repCh; |
| 582 | |
| 583 | /** |
| 584 | * VT100-style line wrapping: a character is placed in column 80 (or |
| 585 | * 132), but the line does NOT wrap until another character is written to |
| 586 | * column 1 of the next line, after which the cursor moves to column 2. |
| 587 | */ |
| 588 | private boolean wrapLineFlag; |
| 589 | |
| 590 | /** |
| 591 | * VT220 single shift flag. |
| 592 | */ |
| 593 | private Singleshift singleshift = Singleshift.NONE; |
| 594 | |
| 595 | /** |
| 596 | * true = insert characters, false = overwrite. |
| 597 | */ |
| 598 | private boolean insertMode = false; |
| 599 | |
| 600 | /** |
| 601 | * VT52 mode as selected by DECANM. True means VT52, false means |
| 602 | * ANSI. Default is ANSI. |
| 603 | */ |
| 604 | private boolean vt52Mode = false; |
| 605 | |
| 606 | /** |
| 607 | * Visible cursor (DECTCEM). |
| 608 | */ |
| 609 | private boolean cursorVisible = true; |
| 610 | |
| 611 | /** |
| 612 | * Get visible cursor flag. |
| 613 | * |
| 614 | * @return if true, the cursor is visible |
| 615 | */ |
| 616 | public final boolean isCursorVisible() { |
| 617 | return cursorVisible; |
| 618 | } |
| 619 | |
| 620 | /** |
| 621 | * Screen title as set by the xterm OSC sequence. Lots of applications |
| 622 | * send a screenTitle regardless of whether it is an xterm client or not. |
| 623 | */ |
| 624 | private String screenTitle = ""; |
| 625 | |
| 626 | /** |
| 627 | * Get the screen title as set by the xterm OSC sequence. Lots of |
| 628 | * applications send a screenTitle regardless of whether it is an xterm |
| 629 | * client or not. |
| 630 | * |
| 631 | * @return screen title |
| 632 | */ |
| 633 | public final String getScreenTitle() { |
| 634 | return screenTitle; |
| 635 | } |
| 636 | |
| 637 | /** |
| 638 | * Parameter characters being collected. |
| 639 | */ |
| 640 | private List<Integer> csiParams; |
| 641 | |
| 642 | /** |
| 643 | * Non-csi collect buffer. |
| 644 | */ |
| 645 | private StringBuilder collectBuffer; |
| 646 | |
| 647 | /** |
| 648 | * When true, use the G1 character set. |
| 649 | */ |
| 650 | private boolean shiftOut = false; |
| 651 | |
| 652 | /** |
| 653 | * Horizontal tab stop locations. |
| 654 | */ |
| 655 | private List<Integer> tabStops; |
| 656 | |
| 657 | /** |
| 658 | * S8C1T. True means 8bit controls, false means 7bit controls. |
| 659 | */ |
| 660 | private boolean s8c1t = false; |
| 661 | |
| 662 | /** |
| 663 | * Printer mode. True means send all output to printer, which discards |
| 664 | * it. |
| 665 | */ |
| 666 | private boolean printerControllerMode = false; |
| 667 | |
| 668 | /** |
| 669 | * LMN line mode. If true, linefeed() puts the cursor on the first |
| 670 | * column of the next line. If false, linefeed() puts the cursor one |
| 671 | * line down on the current line. The default is false. |
| 672 | */ |
| 673 | private boolean newLineMode = false; |
| 674 | |
| 675 | /** |
| 676 | * Whether arrow keys send ANSI, VT100, or VT52 sequences. |
| 677 | */ |
| 678 | private ArrowKeyMode arrowKeyMode; |
| 679 | |
| 680 | /** |
| 681 | * Whether number pad keys send VT100 or VT52, application or numeric |
| 682 | * sequences. |
| 683 | */ |
| 684 | @SuppressWarnings("unused") |
| 685 | private KeypadMode keypadMode; |
| 686 | |
| 687 | /** |
| 688 | * When true, the terminal is in 132-column mode (DECCOLM). |
| 689 | */ |
| 690 | private boolean columns132 = false; |
| 691 | |
| 692 | /** |
| 693 | * Get 132 columns value. |
| 694 | * |
| 695 | * @return if true, the terminal is in 132 column mode |
| 696 | */ |
| 697 | public final boolean isColumns132() { |
| 698 | return columns132; |
| 699 | } |
| 700 | |
| 701 | /** |
| 702 | * true = reverse video. Set by DECSCNM. |
| 703 | */ |
| 704 | private boolean reverseVideo = false; |
| 705 | |
| 706 | /** |
| 707 | * false = echo characters locally. |
| 708 | */ |
| 709 | private boolean fullDuplex = true; |
| 710 | |
| 711 | /** |
| 712 | * DECSC/DECRC save/restore a subset of the total state. This class |
| 713 | * encapsulates those specific flags/modes. |
| 714 | */ |
| 715 | private class SaveableState { |
| 716 | |
| 717 | /** |
| 718 | * When true, cursor positions are relative to the scrolling region. |
| 719 | */ |
| 720 | public boolean originMode = false; |
| 721 | |
| 722 | /** |
| 723 | * The current editing X position. |
| 724 | */ |
| 725 | public int cursorX = 0; |
| 726 | |
| 727 | /** |
| 728 | * The current editing Y position. |
| 729 | */ |
| 730 | public int cursorY = 0; |
| 731 | |
| 732 | /** |
| 733 | * Which character set is currently selected in G0. |
| 734 | */ |
| 735 | public CharacterSet g0Charset = CharacterSet.US; |
| 736 | |
| 737 | /** |
| 738 | * Which character set is currently selected in G1. |
| 739 | */ |
| 740 | public CharacterSet g1Charset = CharacterSet.DRAWING; |
| 741 | |
| 742 | /** |
| 743 | * Which character set is currently selected in G2. |
| 744 | */ |
| 745 | public CharacterSet g2Charset = CharacterSet.US; |
| 746 | |
| 747 | /** |
| 748 | * Which character set is currently selected in G3. |
| 749 | */ |
| 750 | public CharacterSet g3Charset = CharacterSet.US; |
| 751 | |
| 752 | /** |
| 753 | * Which character set is currently selected in GR. |
| 754 | */ |
| 755 | public CharacterSet grCharset = CharacterSet.DRAWING; |
| 756 | |
| 757 | /** |
| 758 | * The current drawing attributes. |
| 759 | */ |
| 760 | public CellAttributes attr; |
| 761 | |
| 762 | /** |
| 763 | * GL lockshift mode. |
| 764 | */ |
| 765 | public LockshiftMode glLockshift = LockshiftMode.NONE; |
| 766 | |
| 767 | /** |
| 768 | * GR lockshift mode. |
| 769 | */ |
| 770 | public LockshiftMode grLockshift = LockshiftMode.NONE; |
| 771 | |
| 772 | /** |
| 773 | * Line wrap. |
| 774 | */ |
| 775 | public boolean lineWrap = true; |
| 776 | |
| 777 | /** |
| 778 | * Reset to defaults. |
| 779 | */ |
| 780 | public void reset() { |
| 781 | originMode = false; |
| 782 | cursorX = 0; |
| 783 | cursorY = 0; |
| 784 | g0Charset = CharacterSet.US; |
| 785 | g1Charset = CharacterSet.DRAWING; |
| 786 | g2Charset = CharacterSet.US; |
| 787 | g3Charset = CharacterSet.US; |
| 788 | grCharset = CharacterSet.DRAWING; |
| 789 | attr = new CellAttributes(); |
| 790 | glLockshift = LockshiftMode.NONE; |
| 791 | grLockshift = LockshiftMode.NONE; |
| 792 | lineWrap = true; |
| 793 | } |
| 794 | |
| 795 | /** |
| 796 | * Copy attributes from another instance. |
| 797 | * |
| 798 | * @param that the other instance to match |
| 799 | */ |
| 800 | public void setTo(final SaveableState that) { |
| 801 | this.originMode = that.originMode; |
| 802 | this.cursorX = that.cursorX; |
| 803 | this.cursorY = that.cursorY; |
| 804 | this.g0Charset = that.g0Charset; |
| 805 | this.g1Charset = that.g1Charset; |
| 806 | this.g2Charset = that.g2Charset; |
| 807 | this.g3Charset = that.g3Charset; |
| 808 | this.grCharset = that.grCharset; |
| 809 | this.attr = new CellAttributes(); |
| 810 | this.attr.setTo(that.attr); |
| 811 | this.glLockshift = that.glLockshift; |
| 812 | this.grLockshift = that.grLockshift; |
| 813 | this.lineWrap = that.lineWrap; |
| 814 | } |
| 815 | |
| 816 | /** |
| 817 | * Public constructor. |
| 818 | */ |
| 819 | public SaveableState() { |
| 820 | reset(); |
| 821 | } |
| 822 | } |
| 823 | |
| 824 | /** |
| 825 | * The current terminal state. |
| 826 | */ |
| 827 | private SaveableState currentState; |
| 828 | |
| 829 | /** |
| 830 | * The last saved terminal state. |
| 831 | */ |
| 832 | private SaveableState savedState; |
| 833 | |
| 834 | /** |
| 835 | * Clear the CSI parameters and flags. |
| 836 | */ |
| 837 | private void toGround() { |
| 838 | csiParams.clear(); |
| 839 | collectBuffer = new StringBuilder(8); |
| 840 | scanState = ScanState.GROUND; |
| 841 | } |
| 842 | |
| 843 | /** |
| 844 | * Reset the tab stops list. |
| 845 | */ |
| 846 | private void resetTabStops() { |
| 847 | tabStops.clear(); |
| 848 | for (int i = 0; (i * 8) <= rightMargin; i++) { |
| 849 | tabStops.add(new Integer(i * 8)); |
| 850 | } |
| 851 | } |
| 852 | |
| 853 | /** |
| 854 | * Reset the emulation state. |
| 855 | */ |
| 856 | private void reset() { |
| 857 | |
| 858 | currentState = new SaveableState(); |
| 859 | savedState = new SaveableState(); |
| 860 | scanState = ScanState.GROUND; |
| 861 | width = 80; |
| 862 | height = 24; |
| 863 | scrollRegionTop = 0; |
| 864 | scrollRegionBottom = height - 1; |
| 865 | rightMargin = width - 1; |
| 866 | newLineMode = false; |
| 867 | arrowKeyMode = ArrowKeyMode.ANSI; |
| 868 | keypadMode = KeypadMode.Numeric; |
| 869 | wrapLineFlag = false; |
| 870 | |
| 871 | // Flags |
| 872 | shiftOut = false; |
| 873 | vt52Mode = false; |
| 874 | insertMode = false; |
| 875 | columns132 = false; |
| 876 | newLineMode = false; |
| 877 | reverseVideo = false; |
| 878 | fullDuplex = true; |
| 879 | cursorVisible = true; |
| 880 | |
| 881 | // VT220 |
| 882 | singleshift = Singleshift.NONE; |
| 883 | s8c1t = false; |
| 884 | printerControllerMode = false; |
| 885 | |
| 886 | // XTERM |
| 887 | mouseProtocol = MouseProtocol.OFF; |
| 888 | mouseEncoding = MouseEncoding.X10; |
| 889 | |
| 890 | // Tab stops |
| 891 | resetTabStops(); |
| 892 | |
| 893 | // Clear CSI stuff |
| 894 | toGround(); |
| 895 | } |
| 896 | |
| 897 | /** |
| 898 | * Public constructor. |
| 899 | * |
| 900 | * @param type one of the DeviceType constants to select VT100, VT102, |
| 901 | * VT220, or XTERM |
| 902 | * @param inputStream an InputStream connected to the remote side. For |
| 903 | * type == XTERM, inputStream is converted to a Reader with UTF-8 |
| 904 | * encoding. |
| 905 | * @param outputStream an OutputStream connected to the remote user. For |
| 906 | * type == XTERM, outputStream is converted to a Writer with UTF-8 |
| 907 | * encoding. |
| 908 | * @throws UnsupportedEncodingException if an exception is thrown when |
| 909 | * creating the InputStreamReader |
| 910 | */ |
| 911 | public ECMA48(final DeviceType type, final InputStream inputStream, |
| 912 | final OutputStream outputStream) throws UnsupportedEncodingException { |
| 913 | |
| 914 | assert (inputStream != null); |
| 915 | assert (outputStream != null); |
| 916 | |
| 917 | csiParams = new ArrayList<Integer>(); |
| 918 | tabStops = new ArrayList<Integer>(); |
| 919 | scrollback = new LinkedList<DisplayLine>(); |
| 920 | display = new LinkedList<DisplayLine>(); |
| 921 | |
| 922 | this.type = type; |
| 923 | this.inputStream = inputStream; |
| 924 | if (type == DeviceType.XTERM) { |
| 925 | this.input = new InputStreamReader(inputStream, "UTF-8"); |
| 926 | this.output = new OutputStreamWriter(outputStream, "UTF-8"); |
| 927 | this.outputStream = null; |
| 928 | } else { |
| 929 | this.output = null; |
| 930 | this.outputStream = outputStream; |
| 931 | } |
| 932 | |
| 933 | reset(); |
| 934 | for (int i = 0; i < height; i++) { |
| 935 | display.add(new DisplayLine(currentState.attr)); |
| 936 | } |
| 937 | |
| 938 | // Spin up the input reader |
| 939 | readerThread = new Thread(this); |
| 940 | readerThread.start(); |
| 941 | } |
| 942 | |
| 943 | /** |
| 944 | * Append a new line to the bottom of the display, adding lines off the |
| 945 | * top to the scrollback buffer. |
| 946 | */ |
| 947 | private void newDisplayLine() { |
| 948 | // Scroll the top line off into the scrollback buffer |
| 949 | scrollback.add(display.get(0)); |
| 950 | display.remove(0); |
| 951 | DisplayLine line = new DisplayLine(currentState.attr); |
| 952 | line.setReverseColor(reverseVideo); |
| 953 | display.add(line); |
| 954 | } |
| 955 | |
| 956 | /** |
| 957 | * Wraps the current line. |
| 958 | */ |
| 959 | private void wrapCurrentLine() { |
| 960 | if (currentState.cursorY == height - 1) { |
| 961 | newDisplayLine(); |
| 962 | } |
| 963 | if (currentState.cursorY < height - 1) { |
| 964 | currentState.cursorY++; |
| 965 | } |
| 966 | currentState.cursorX = 0; |
| 967 | } |
| 968 | |
| 969 | /** |
| 970 | * Handle a carriage return. |
| 971 | */ |
| 972 | private void carriageReturn() { |
| 973 | currentState.cursorX = 0; |
| 974 | wrapLineFlag = false; |
| 975 | } |
| 976 | |
| 977 | /** |
| 978 | * Reverse the color of the visible display. |
| 979 | */ |
| 980 | private void invertDisplayColors() { |
| 981 | for (DisplayLine line: display) { |
| 982 | line.setReverseColor(!line.isReverseColor()); |
| 983 | } |
| 984 | } |
| 985 | |
| 986 | /** |
| 987 | * Handle a linefeed. |
| 988 | */ |
| 989 | private void linefeed() { |
| 990 | |
| 991 | if (currentState.cursorY < scrollRegionBottom) { |
| 992 | // Increment screen y |
| 993 | currentState.cursorY++; |
| 994 | } else { |
| 995 | |
| 996 | // Screen y does not increment |
| 997 | |
| 998 | /* |
| 999 | * Two cases: either we're inside a scrolling region or not. If |
| 1000 | * the scrolling region bottom is the bottom of the screen, then |
| 1001 | * push the top line into the buffer. Else scroll the scrolling |
| 1002 | * region up. |
| 1003 | */ |
| 1004 | if ((scrollRegionBottom == height - 1) && (scrollRegionTop == 0)) { |
| 1005 | |
| 1006 | // We're at the bottom of the scroll region, AND the scroll |
| 1007 | // region is the entire screen. |
| 1008 | |
| 1009 | // New line |
| 1010 | newDisplayLine(); |
| 1011 | |
| 1012 | } else { |
| 1013 | // We're at the bottom of the scroll region, AND the scroll |
| 1014 | // region is NOT the entire screen. |
| 1015 | scrollingRegionScrollUp(scrollRegionTop, scrollRegionBottom, 1); |
| 1016 | } |
| 1017 | } |
| 1018 | |
| 1019 | if (newLineMode) { |
| 1020 | currentState.cursorX = 0; |
| 1021 | } |
| 1022 | wrapLineFlag = false; |
| 1023 | } |
| 1024 | |
| 1025 | /** |
| 1026 | * Prints one character to the display buffer. |
| 1027 | * |
| 1028 | * @param ch character to display |
| 1029 | */ |
| 1030 | private void printCharacter(final char ch) { |
| 1031 | int rightMargin = this.rightMargin; |
| 1032 | |
| 1033 | // Check if we have double-width, and if so chop at 40/66 instead of |
| 1034 | // 80/132 |
| 1035 | if (display.get(currentState.cursorY).isDoubleWidth()) { |
| 1036 | rightMargin = ((rightMargin + 1) / 2) - 1; |
| 1037 | } |
| 1038 | |
| 1039 | // Check the unusually-complicated line wrapping conditions... |
| 1040 | if (currentState.cursorX == rightMargin) { |
| 1041 | |
| 1042 | if (currentState.lineWrap == true) { |
| 1043 | /* |
| 1044 | * This case happens when: the cursor was already on the |
| 1045 | * right margin (either through printing or by an explicit |
| 1046 | * placement command), and a character was printed. |
| 1047 | * |
| 1048 | * The line wraps only when a new character arrives AND the |
| 1049 | * cursor is already on the right margin AND has placed a |
| 1050 | * character in its cell. Easier to see than to explain. |
| 1051 | */ |
| 1052 | if (wrapLineFlag == false) { |
| 1053 | /* |
| 1054 | * This block marks the case that we are in the margin |
| 1055 | * and the first character has been received and printed. |
| 1056 | */ |
| 1057 | wrapLineFlag = true; |
| 1058 | } else { |
| 1059 | /* |
| 1060 | * This block marks the case that we are in the margin |
| 1061 | * and the second character has been received and |
| 1062 | * printed. |
| 1063 | */ |
| 1064 | wrapLineFlag = false; |
| 1065 | wrapCurrentLine(); |
| 1066 | } |
| 1067 | } |
| 1068 | } else if (currentState.cursorX <= rightMargin) { |
| 1069 | /* |
| 1070 | * This is the normal case: a character came in and was printed |
| 1071 | * to the left of the right margin column. |
| 1072 | */ |
| 1073 | |
| 1074 | // Turn off VT100 special-case flag |
| 1075 | wrapLineFlag = false; |
| 1076 | } |
| 1077 | |
| 1078 | // "Print" the character |
| 1079 | Cell newCell = new Cell(ch); |
| 1080 | CellAttributes newCellAttributes = (CellAttributes) newCell; |
| 1081 | newCellAttributes.setTo(currentState.attr); |
| 1082 | DisplayLine line = display.get(currentState.cursorY); |
| 1083 | // Insert mode special case |
| 1084 | if (insertMode == true) { |
| 1085 | line.insert(currentState.cursorX, newCell); |
| 1086 | } else { |
| 1087 | // Replace an existing character |
| 1088 | line.replace(currentState.cursorX, newCell); |
| 1089 | } |
| 1090 | |
| 1091 | // Increment horizontal |
| 1092 | if (wrapLineFlag == false) { |
| 1093 | currentState.cursorX++; |
| 1094 | if (currentState.cursorX > rightMargin) { |
| 1095 | currentState.cursorX--; |
| 1096 | } |
| 1097 | } |
| 1098 | } |
| 1099 | |
| 1100 | /** |
| 1101 | * Translate the mouse event to a VT100, VT220, or XTERM sequence and |
| 1102 | * send to the remote side. |
| 1103 | * |
| 1104 | * @param mouse mouse event received from the local user |
| 1105 | */ |
| 1106 | public void mouse(final TMouseEvent mouse) { |
| 1107 | |
| 1108 | /* |
| 1109 | System.err.printf("mouse(): protocol %s encoding %s mouse %s\n", |
| 1110 | mouseProtocol, mouseEncoding, mouse); |
| 1111 | */ |
| 1112 | |
| 1113 | if (mouseEncoding == MouseEncoding.X10) { |
| 1114 | // We will support X10 but only for (160,94) and smaller. |
| 1115 | if ((mouse.getX() >= 160) || (mouse.getY() >= 94)) { |
| 1116 | return; |
| 1117 | } |
| 1118 | } |
| 1119 | |
| 1120 | switch (mouseProtocol) { |
| 1121 | |
| 1122 | case OFF: |
| 1123 | // Do nothing |
| 1124 | return; |
| 1125 | |
| 1126 | case X10: |
| 1127 | // Only report button presses |
| 1128 | if (mouse.getType() != TMouseEvent.Type.MOUSE_DOWN) { |
| 1129 | return; |
| 1130 | } |
| 1131 | break; |
| 1132 | |
| 1133 | case NORMAL: |
| 1134 | // Only report button presses and releases |
| 1135 | if ((mouse.getType() != TMouseEvent.Type.MOUSE_DOWN) |
| 1136 | && (mouse.getType() != TMouseEvent.Type.MOUSE_UP) |
| 1137 | ) { |
| 1138 | return; |
| 1139 | } |
| 1140 | break; |
| 1141 | |
| 1142 | case BUTTONEVENT: |
| 1143 | /* |
| 1144 | * Only report button presses, button releases, and motions that |
| 1145 | * have a button down (i.e. drag-and-drop). |
| 1146 | */ |
| 1147 | if (mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) { |
| 1148 | if (!mouse.isMouse1() |
| 1149 | && !mouse.isMouse2() |
| 1150 | && !mouse.isMouse3() |
| 1151 | && !mouse.isMouseWheelUp() |
| 1152 | && !mouse.isMouseWheelDown() |
| 1153 | ) { |
| 1154 | return; |
| 1155 | } |
| 1156 | } |
| 1157 | break; |
| 1158 | |
| 1159 | case ANYEVENT: |
| 1160 | // Report everything |
| 1161 | break; |
| 1162 | } |
| 1163 | |
| 1164 | // Now encode the event |
| 1165 | StringBuilder sb = new StringBuilder(6); |
| 1166 | if (mouseEncoding == MouseEncoding.SGR) { |
| 1167 | sb.append((char) 0x1B); |
| 1168 | sb.append("[<"); |
| 1169 | |
| 1170 | if (mouse.isMouse1()) { |
| 1171 | if (mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) { |
| 1172 | sb.append("32;"); |
| 1173 | } else { |
| 1174 | sb.append("0;"); |
| 1175 | } |
| 1176 | } else if (mouse.isMouse2()) { |
| 1177 | if (mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) { |
| 1178 | sb.append("33;"); |
| 1179 | } else { |
| 1180 | sb.append("1;"); |
| 1181 | } |
| 1182 | } else if (mouse.isMouse3()) { |
| 1183 | if (mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) { |
| 1184 | sb.append("34;"); |
| 1185 | } else { |
| 1186 | sb.append("2;"); |
| 1187 | } |
| 1188 | } else if (mouse.isMouseWheelUp()) { |
| 1189 | sb.append("64;"); |
| 1190 | } else if (mouse.isMouseWheelDown()) { |
| 1191 | sb.append("65;"); |
| 1192 | } else { |
| 1193 | // This is motion with no buttons down. |
| 1194 | sb.append("35;"); |
| 1195 | } |
| 1196 | |
| 1197 | sb.append(String.format("%d;%d", mouse.getX() + 1, |
| 1198 | mouse.getY() + 1)); |
| 1199 | |
| 1200 | if (mouse.getType() == TMouseEvent.Type.MOUSE_UP) { |
| 1201 | sb.append("m"); |
| 1202 | } else { |
| 1203 | sb.append("M"); |
| 1204 | } |
| 1205 | |
| 1206 | } else { |
| 1207 | // X10 and UTF8 encodings |
| 1208 | sb.append((char) 0x1B); |
| 1209 | sb.append('['); |
| 1210 | sb.append('M'); |
| 1211 | if (mouse.getType() == TMouseEvent.Type.MOUSE_UP) { |
| 1212 | sb.append((char) (0x03 + 32)); |
| 1213 | } else if (mouse.isMouse1()) { |
| 1214 | if (mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) { |
| 1215 | sb.append((char) (0x00 + 32 + 32)); |
| 1216 | } else { |
| 1217 | sb.append((char) (0x00 + 32)); |
| 1218 | } |
| 1219 | } else if (mouse.isMouse2()) { |
| 1220 | if (mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) { |
| 1221 | sb.append((char) (0x01 + 32 + 32)); |
| 1222 | } else { |
| 1223 | sb.append((char) (0x01 + 32)); |
| 1224 | } |
| 1225 | } else if (mouse.isMouse3()) { |
| 1226 | if (mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) { |
| 1227 | sb.append((char) (0x02 + 32 + 32)); |
| 1228 | } else { |
| 1229 | sb.append((char) (0x02 + 32)); |
| 1230 | } |
| 1231 | } else if (mouse.isMouseWheelUp()) { |
| 1232 | sb.append((char) (0x04 + 64)); |
| 1233 | } else if (mouse.isMouseWheelDown()) { |
| 1234 | sb.append((char) (0x05 + 64)); |
| 1235 | } else { |
| 1236 | // This is motion with no buttons down. |
| 1237 | sb.append((char) (0x03 + 32)); |
| 1238 | } |
| 1239 | |
| 1240 | sb.append((char) (mouse.getX() + 33)); |
| 1241 | sb.append((char) (mouse.getY() + 33)); |
| 1242 | } |
| 1243 | |
| 1244 | // System.err.printf("Would write: \'%s\'\n", sb.toString()); |
| 1245 | writeRemote(sb.toString()); |
| 1246 | } |
| 1247 | |
| 1248 | /** |
| 1249 | * Translate the keyboard press to a VT100, VT220, or XTERM sequence and |
| 1250 | * send to the remote side. |
| 1251 | * |
| 1252 | * @param keypress keypress received from the local user |
| 1253 | */ |
| 1254 | public void keypress(final TKeypress keypress) { |
| 1255 | writeRemote(keypressToString(keypress)); |
| 1256 | } |
| 1257 | |
| 1258 | /** |
| 1259 | * Translate the keyboard press to a VT100, VT220, or XTERM sequence. |
| 1260 | * |
| 1261 | * @param keypress keypress received from the local user |
| 1262 | * @return string to transmit to the remote side |
| 1263 | */ |
| 1264 | private String keypressToString(final TKeypress keypress) { |
| 1265 | |
| 1266 | if ((fullDuplex == false) && (!keypress.isFnKey())) { |
| 1267 | /* |
| 1268 | * If this is a control character, process it like it came from |
| 1269 | * the remote side. |
| 1270 | */ |
| 1271 | if (keypress.getChar() < 0x20) { |
| 1272 | handleControlChar(keypress.getChar()); |
| 1273 | } else { |
| 1274 | // Local echo for everything else |
| 1275 | printCharacter(keypress.getChar()); |
| 1276 | } |
| 1277 | } |
| 1278 | |
| 1279 | if ((newLineMode == true) && (keypress.equals(kbEnter))) { |
| 1280 | // NLM: send CRLF |
| 1281 | return "\015\012"; |
| 1282 | } |
| 1283 | |
| 1284 | // Handle control characters |
| 1285 | if ((keypress.isCtrl()) && (!keypress.isFnKey())) { |
| 1286 | StringBuilder sb = new StringBuilder(); |
| 1287 | char ch = keypress.getChar(); |
| 1288 | ch -= 0x40; |
| 1289 | sb.append(ch); |
| 1290 | return sb.toString(); |
| 1291 | } |
| 1292 | |
| 1293 | // Handle alt characters |
| 1294 | if ((keypress.isAlt()) && (!keypress.isFnKey())) { |
| 1295 | StringBuilder sb = new StringBuilder("\033"); |
| 1296 | char ch = keypress.getChar(); |
| 1297 | sb.append(ch); |
| 1298 | return sb.toString(); |
| 1299 | } |
| 1300 | |
| 1301 | if (keypress.equals(kbBackspace)) { |
| 1302 | switch (type) { |
| 1303 | case VT100: |
| 1304 | return "\010"; |
| 1305 | case VT102: |
| 1306 | return "\010"; |
| 1307 | case VT220: |
| 1308 | return "\177"; |
| 1309 | case XTERM: |
| 1310 | return "\177"; |
| 1311 | } |
| 1312 | } |
| 1313 | |
| 1314 | if (keypress.equals(kbLeft)) { |
| 1315 | switch (arrowKeyMode) { |
| 1316 | case ANSI: |
| 1317 | return "\033[D"; |
| 1318 | case VT52: |
| 1319 | return "\033D"; |
| 1320 | case VT100: |
| 1321 | return "\033OD"; |
| 1322 | } |
| 1323 | } |
| 1324 | |
| 1325 | if (keypress.equals(kbRight)) { |
| 1326 | switch (arrowKeyMode) { |
| 1327 | case ANSI: |
| 1328 | return "\033[C"; |
| 1329 | case VT52: |
| 1330 | return "\033C"; |
| 1331 | case VT100: |
| 1332 | return "\033OC"; |
| 1333 | } |
| 1334 | } |
| 1335 | |
| 1336 | if (keypress.equals(kbUp)) { |
| 1337 | switch (arrowKeyMode) { |
| 1338 | case ANSI: |
| 1339 | return "\033[A"; |
| 1340 | case VT52: |
| 1341 | return "\033A"; |
| 1342 | case VT100: |
| 1343 | return "\033OA"; |
| 1344 | } |
| 1345 | } |
| 1346 | |
| 1347 | if (keypress.equals(kbDown)) { |
| 1348 | switch (arrowKeyMode) { |
| 1349 | case ANSI: |
| 1350 | return "\033[B"; |
| 1351 | case VT52: |
| 1352 | return "\033B"; |
| 1353 | case VT100: |
| 1354 | return "\033OB"; |
| 1355 | } |
| 1356 | } |
| 1357 | |
| 1358 | if (keypress.equals(kbHome)) { |
| 1359 | switch (arrowKeyMode) { |
| 1360 | case ANSI: |
| 1361 | return "\033[H"; |
| 1362 | case VT52: |
| 1363 | return "\033H"; |
| 1364 | case VT100: |
| 1365 | return "\033OH"; |
| 1366 | } |
| 1367 | } |
| 1368 | |
| 1369 | if (keypress.equals(kbEnd)) { |
| 1370 | switch (arrowKeyMode) { |
| 1371 | case ANSI: |
| 1372 | return "\033[F"; |
| 1373 | case VT52: |
| 1374 | return "\033F"; |
| 1375 | case VT100: |
| 1376 | return "\033OF"; |
| 1377 | } |
| 1378 | } |
| 1379 | |
| 1380 | if (keypress.equals(kbF1)) { |
| 1381 | // PF1 |
| 1382 | if (vt52Mode) { |
| 1383 | return "\033P"; |
| 1384 | } |
| 1385 | return "\033OP"; |
| 1386 | } |
| 1387 | |
| 1388 | if (keypress.equals(kbF2)) { |
| 1389 | // PF2 |
| 1390 | if (vt52Mode) { |
| 1391 | return "\033Q"; |
| 1392 | } |
| 1393 | return "\033OQ"; |
| 1394 | } |
| 1395 | |
| 1396 | if (keypress.equals(kbF3)) { |
| 1397 | // PF3 |
| 1398 | if (vt52Mode) { |
| 1399 | return "\033R"; |
| 1400 | } |
| 1401 | return "\033OR"; |
| 1402 | } |
| 1403 | |
| 1404 | if (keypress.equals(kbF4)) { |
| 1405 | // PF4 |
| 1406 | if (vt52Mode) { |
| 1407 | return "\033S"; |
| 1408 | } |
| 1409 | return "\033OS"; |
| 1410 | } |
| 1411 | |
| 1412 | if (keypress.equals(kbF5)) { |
| 1413 | switch (type) { |
| 1414 | case VT100: |
| 1415 | return "\033Ot"; |
| 1416 | case VT102: |
| 1417 | return "\033Ot"; |
| 1418 | case VT220: |
| 1419 | return "\033[15~"; |
| 1420 | case XTERM: |
| 1421 | return "\033[15~"; |
| 1422 | } |
| 1423 | } |
| 1424 | |
| 1425 | if (keypress.equals(kbF6)) { |
| 1426 | switch (type) { |
| 1427 | case VT100: |
| 1428 | return "\033Ou"; |
| 1429 | case VT102: |
| 1430 | return "\033Ou"; |
| 1431 | case VT220: |
| 1432 | return "\033[17~"; |
| 1433 | case XTERM: |
| 1434 | return "\033[17~"; |
| 1435 | } |
| 1436 | } |
| 1437 | |
| 1438 | if (keypress.equals(kbF7)) { |
| 1439 | switch (type) { |
| 1440 | case VT100: |
| 1441 | return "\033Ov"; |
| 1442 | case VT102: |
| 1443 | return "\033Ov"; |
| 1444 | case VT220: |
| 1445 | return "\033[18~"; |
| 1446 | case XTERM: |
| 1447 | return "\033[18~"; |
| 1448 | } |
| 1449 | } |
| 1450 | |
| 1451 | if (keypress.equals(kbF8)) { |
| 1452 | switch (type) { |
| 1453 | case VT100: |
| 1454 | return "\033Ol"; |
| 1455 | case VT102: |
| 1456 | return "\033Ol"; |
| 1457 | case VT220: |
| 1458 | return "\033[19~"; |
| 1459 | case XTERM: |
| 1460 | return "\033[19~"; |
| 1461 | } |
| 1462 | } |
| 1463 | |
| 1464 | if (keypress.equals(kbF9)) { |
| 1465 | switch (type) { |
| 1466 | case VT100: |
| 1467 | return "\033Ow"; |
| 1468 | case VT102: |
| 1469 | return "\033Ow"; |
| 1470 | case VT220: |
| 1471 | return "\033[20~"; |
| 1472 | case XTERM: |
| 1473 | return "\033[20~"; |
| 1474 | } |
| 1475 | } |
| 1476 | |
| 1477 | if (keypress.equals(kbF10)) { |
| 1478 | switch (type) { |
| 1479 | case VT100: |
| 1480 | return "\033Ox"; |
| 1481 | case VT102: |
| 1482 | return "\033Ox"; |
| 1483 | case VT220: |
| 1484 | return "\033[21~"; |
| 1485 | case XTERM: |
| 1486 | return "\033[21~"; |
| 1487 | } |
| 1488 | } |
| 1489 | |
| 1490 | if (keypress.equals(kbF11)) { |
| 1491 | return "\033[23~"; |
| 1492 | } |
| 1493 | |
| 1494 | if (keypress.equals(kbF12)) { |
| 1495 | return "\033[24~"; |
| 1496 | } |
| 1497 | |
| 1498 | if (keypress.equals(kbShiftF1)) { |
| 1499 | // Shifted PF1 |
| 1500 | if (vt52Mode) { |
| 1501 | return "\0332P"; |
| 1502 | } |
| 1503 | return "\033O2P"; |
| 1504 | } |
| 1505 | |
| 1506 | if (keypress.equals(kbShiftF2)) { |
| 1507 | // Shifted PF2 |
| 1508 | if (vt52Mode) { |
| 1509 | return "\0332Q"; |
| 1510 | } |
| 1511 | return "\033O2Q"; |
| 1512 | } |
| 1513 | |
| 1514 | if (keypress.equals(kbShiftF3)) { |
| 1515 | // Shifted PF3 |
| 1516 | if (vt52Mode) { |
| 1517 | return "\0332R"; |
| 1518 | } |
| 1519 | return "\033O2R"; |
| 1520 | } |
| 1521 | |
| 1522 | if (keypress.equals(kbShiftF4)) { |
| 1523 | // Shifted PF4 |
| 1524 | if (vt52Mode) { |
| 1525 | return "\0332S"; |
| 1526 | } |
| 1527 | return "\033O2S"; |
| 1528 | } |
| 1529 | |
| 1530 | if (keypress.equals(kbShiftF5)) { |
| 1531 | // Shifted F5 |
| 1532 | return "\033[15;2~"; |
| 1533 | } |
| 1534 | |
| 1535 | if (keypress.equals(kbShiftF6)) { |
| 1536 | // Shifted F6 |
| 1537 | return "\033[17;2~"; |
| 1538 | } |
| 1539 | |
| 1540 | if (keypress.equals(kbShiftF7)) { |
| 1541 | // Shifted F7 |
| 1542 | return "\033[18;2~"; |
| 1543 | } |
| 1544 | |
| 1545 | if (keypress.equals(kbShiftF8)) { |
| 1546 | // Shifted F8 |
| 1547 | return "\033[19;2~"; |
| 1548 | } |
| 1549 | |
| 1550 | if (keypress.equals(kbShiftF9)) { |
| 1551 | // Shifted F9 |
| 1552 | return "\033[20;2~"; |
| 1553 | } |
| 1554 | |
| 1555 | if (keypress.equals(kbShiftF10)) { |
| 1556 | // Shifted F10 |
| 1557 | return "\033[21;2~"; |
| 1558 | } |
| 1559 | |
| 1560 | if (keypress.equals(kbShiftF11)) { |
| 1561 | // Shifted F11 |
| 1562 | return "\033[23;2~"; |
| 1563 | } |
| 1564 | |
| 1565 | if (keypress.equals(kbShiftF12)) { |
| 1566 | // Shifted F12 |
| 1567 | return "\033[24;2~"; |
| 1568 | } |
| 1569 | |
| 1570 | if (keypress.equals(kbCtrlF1)) { |
| 1571 | // Control PF1 |
| 1572 | if (vt52Mode) { |
| 1573 | return "\0335P"; |
| 1574 | } |
| 1575 | return "\033O5P"; |
| 1576 | } |
| 1577 | |
| 1578 | if (keypress.equals(kbCtrlF2)) { |
| 1579 | // Control PF2 |
| 1580 | if (vt52Mode) { |
| 1581 | return "\0335Q"; |
| 1582 | } |
| 1583 | return "\033O5Q"; |
| 1584 | } |
| 1585 | |
| 1586 | if (keypress.equals(kbCtrlF3)) { |
| 1587 | // Control PF3 |
| 1588 | if (vt52Mode) { |
| 1589 | return "\0335R"; |
| 1590 | } |
| 1591 | return "\033O5R"; |
| 1592 | } |
| 1593 | |
| 1594 | if (keypress.equals(kbCtrlF4)) { |
| 1595 | // Control PF4 |
| 1596 | if (vt52Mode) { |
| 1597 | return "\0335S"; |
| 1598 | } |
| 1599 | return "\033O5S"; |
| 1600 | } |
| 1601 | |
| 1602 | if (keypress.equals(kbCtrlF5)) { |
| 1603 | // Control F5 |
| 1604 | return "\033[15;5~"; |
| 1605 | } |
| 1606 | |
| 1607 | if (keypress.equals(kbCtrlF6)) { |
| 1608 | // Control F6 |
| 1609 | return "\033[17;5~"; |
| 1610 | } |
| 1611 | |
| 1612 | if (keypress.equals(kbCtrlF7)) { |
| 1613 | // Control F7 |
| 1614 | return "\033[18;5~"; |
| 1615 | } |
| 1616 | |
| 1617 | if (keypress.equals(kbCtrlF8)) { |
| 1618 | // Control F8 |
| 1619 | return "\033[19;5~"; |
| 1620 | } |
| 1621 | |
| 1622 | if (keypress.equals(kbCtrlF9)) { |
| 1623 | // Control F9 |
| 1624 | return "\033[20;5~"; |
| 1625 | } |
| 1626 | |
| 1627 | if (keypress.equals(kbCtrlF10)) { |
| 1628 | // Control F10 |
| 1629 | return "\033[21;5~"; |
| 1630 | } |
| 1631 | |
| 1632 | if (keypress.equals(kbCtrlF11)) { |
| 1633 | // Control F11 |
| 1634 | return "\033[23;5~"; |
| 1635 | } |
| 1636 | |
| 1637 | if (keypress.equals(kbCtrlF12)) { |
| 1638 | // Control F12 |
| 1639 | return "\033[24;5~"; |
| 1640 | } |
| 1641 | |
| 1642 | if (keypress.equals(kbPgUp)) { |
| 1643 | // Page Up |
| 1644 | return "\033[5~"; |
| 1645 | } |
| 1646 | |
| 1647 | if (keypress.equals(kbPgDn)) { |
| 1648 | // Page Down |
| 1649 | return "\033[6~"; |
| 1650 | } |
| 1651 | |
| 1652 | if (keypress.equals(kbIns)) { |
| 1653 | // Ins |
| 1654 | return "\033[2~"; |
| 1655 | } |
| 1656 | |
| 1657 | if (keypress.equals(kbShiftIns)) { |
| 1658 | // This is what xterm sends for SHIFT-INS |
| 1659 | return "\033[2;2~"; |
| 1660 | // This is what xterm sends for CTRL-INS |
| 1661 | // return "\033[2;5~"; |
| 1662 | } |
| 1663 | |
| 1664 | if (keypress.equals(kbShiftDel)) { |
| 1665 | // This is what xterm sends for SHIFT-DEL |
| 1666 | return "\033[3;2~"; |
| 1667 | // This is what xterm sends for CTRL-DEL |
| 1668 | // return "\033[3;5~"; |
| 1669 | } |
| 1670 | |
| 1671 | if (keypress.equals(kbDel)) { |
| 1672 | // Delete sends real delete for VTxxx |
| 1673 | return "\177"; |
| 1674 | // return "\033[3~"; |
| 1675 | } |
| 1676 | |
| 1677 | if (keypress.equals(kbEnter)) { |
| 1678 | return "\015"; |
| 1679 | } |
| 1680 | |
| 1681 | if (keypress.equals(kbEsc)) { |
| 1682 | return "\033"; |
| 1683 | } |
| 1684 | |
| 1685 | if (keypress.equals(kbAltEsc)) { |
| 1686 | return "\033\033"; |
| 1687 | } |
| 1688 | |
| 1689 | if (keypress.equals(kbTab)) { |
| 1690 | return "\011"; |
| 1691 | } |
| 1692 | |
| 1693 | // Non-alt, non-ctrl characters |
| 1694 | if (!keypress.isFnKey()) { |
| 1695 | StringBuilder sb = new StringBuilder(); |
| 1696 | sb.append(keypress.getChar()); |
| 1697 | return sb.toString(); |
| 1698 | } |
| 1699 | return ""; |
| 1700 | } |
| 1701 | |
| 1702 | /** |
| 1703 | * Map a symbol in any one of the VT100/VT220 character sets to a Unicode |
| 1704 | * symbol. |
| 1705 | * |
| 1706 | * @param ch 8-bit character from the remote side |
| 1707 | * @param charsetGl character set defined for GL |
| 1708 | * @param charsetGr character set defined for GR |
| 1709 | * @return character to display on the screen |
| 1710 | */ |
| 1711 | private char mapCharacterCharset(final char ch, |
| 1712 | final CharacterSet charsetGl, |
| 1713 | final CharacterSet charsetGr) { |
| 1714 | |
| 1715 | int lookupChar = ch; |
| 1716 | CharacterSet lookupCharset = charsetGl; |
| 1717 | |
| 1718 | if (ch >= 0x80) { |
| 1719 | assert ((type == DeviceType.VT220) || (type == DeviceType.XTERM)); |
| 1720 | lookupCharset = charsetGr; |
| 1721 | lookupChar &= 0x7F; |
| 1722 | } |
| 1723 | |
| 1724 | switch (lookupCharset) { |
| 1725 | |
| 1726 | case DRAWING: |
| 1727 | return DECCharacterSets.SPECIAL_GRAPHICS[lookupChar]; |
| 1728 | |
| 1729 | case UK: |
| 1730 | return DECCharacterSets.UK[lookupChar]; |
| 1731 | |
| 1732 | case US: |
| 1733 | return DECCharacterSets.US_ASCII[lookupChar]; |
| 1734 | |
| 1735 | case NRC_DUTCH: |
| 1736 | return DECCharacterSets.NL[lookupChar]; |
| 1737 | |
| 1738 | case NRC_FINNISH: |
| 1739 | return DECCharacterSets.FI[lookupChar]; |
| 1740 | |
| 1741 | case NRC_FRENCH: |
| 1742 | return DECCharacterSets.FR[lookupChar]; |
| 1743 | |
| 1744 | case NRC_FRENCH_CA: |
| 1745 | return DECCharacterSets.FR_CA[lookupChar]; |
| 1746 | |
| 1747 | case NRC_GERMAN: |
| 1748 | return DECCharacterSets.DE[lookupChar]; |
| 1749 | |
| 1750 | case NRC_ITALIAN: |
| 1751 | return DECCharacterSets.IT[lookupChar]; |
| 1752 | |
| 1753 | case NRC_NORWEGIAN: |
| 1754 | return DECCharacterSets.NO[lookupChar]; |
| 1755 | |
| 1756 | case NRC_SPANISH: |
| 1757 | return DECCharacterSets.ES[lookupChar]; |
| 1758 | |
| 1759 | case NRC_SWEDISH: |
| 1760 | return DECCharacterSets.SV[lookupChar]; |
| 1761 | |
| 1762 | case NRC_SWISS: |
| 1763 | return DECCharacterSets.SWISS[lookupChar]; |
| 1764 | |
| 1765 | case DEC_SUPPLEMENTAL: |
| 1766 | return DECCharacterSets.DEC_SUPPLEMENTAL[lookupChar]; |
| 1767 | |
| 1768 | case VT52_GRAPHICS: |
| 1769 | return DECCharacterSets.VT52_SPECIAL_GRAPHICS[lookupChar]; |
| 1770 | |
| 1771 | case ROM: |
| 1772 | return DECCharacterSets.US_ASCII[lookupChar]; |
| 1773 | |
| 1774 | case ROM_SPECIAL: |
| 1775 | return DECCharacterSets.US_ASCII[lookupChar]; |
| 1776 | |
| 1777 | default: |
| 1778 | throw new IllegalArgumentException("Invalid character set value: " |
| 1779 | + lookupCharset); |
| 1780 | } |
| 1781 | } |
| 1782 | |
| 1783 | /** |
| 1784 | * Map an 8-bit byte into a printable character. |
| 1785 | * |
| 1786 | * @param ch either 8-bit or Unicode character from the remote side |
| 1787 | * @return character to display on the screen |
| 1788 | */ |
| 1789 | private char mapCharacter(final char ch) { |
| 1790 | if (ch >= 0x100) { |
| 1791 | // Unicode character, just return it |
| 1792 | return ch; |
| 1793 | } |
| 1794 | |
| 1795 | CharacterSet charsetGl = currentState.g0Charset; |
| 1796 | CharacterSet charsetGr = currentState.grCharset; |
| 1797 | |
| 1798 | if (vt52Mode == true) { |
| 1799 | if (shiftOut == true) { |
| 1800 | // Shifted out character, pull from VT52 graphics |
| 1801 | charsetGl = currentState.g1Charset; |
| 1802 | charsetGr = CharacterSet.US; |
| 1803 | } else { |
| 1804 | // Normal |
| 1805 | charsetGl = currentState.g0Charset; |
| 1806 | charsetGr = CharacterSet.US; |
| 1807 | } |
| 1808 | |
| 1809 | // Pull the character |
| 1810 | return mapCharacterCharset(ch, charsetGl, charsetGr); |
| 1811 | } |
| 1812 | |
| 1813 | // shiftOout |
| 1814 | if (shiftOut == true) { |
| 1815 | // Shifted out character, pull from G1 |
| 1816 | charsetGl = currentState.g1Charset; |
| 1817 | charsetGr = currentState.grCharset; |
| 1818 | |
| 1819 | // Pull the character |
| 1820 | return mapCharacterCharset(ch, charsetGl, charsetGr); |
| 1821 | } |
| 1822 | |
| 1823 | // SS2 |
| 1824 | if (singleshift == Singleshift.SS2) { |
| 1825 | |
| 1826 | singleshift = Singleshift.NONE; |
| 1827 | |
| 1828 | // Shifted out character, pull from G2 |
| 1829 | charsetGl = currentState.g2Charset; |
| 1830 | charsetGr = currentState.grCharset; |
| 1831 | } |
| 1832 | |
| 1833 | // SS3 |
| 1834 | if (singleshift == Singleshift.SS3) { |
| 1835 | |
| 1836 | singleshift = Singleshift.NONE; |
| 1837 | |
| 1838 | // Shifted out character, pull from G3 |
| 1839 | charsetGl = currentState.g3Charset; |
| 1840 | charsetGr = currentState.grCharset; |
| 1841 | } |
| 1842 | |
| 1843 | if ((type == DeviceType.VT220) || (type == DeviceType.XTERM)) { |
| 1844 | // Check for locking shift |
| 1845 | |
| 1846 | switch (currentState.glLockshift) { |
| 1847 | |
| 1848 | case G1_GR: |
| 1849 | assert (false); |
| 1850 | |
| 1851 | case G2_GR: |
| 1852 | assert (false); |
| 1853 | |
| 1854 | case G3_GR: |
| 1855 | assert (false); |
| 1856 | |
| 1857 | case G2_GL: |
| 1858 | // LS2 |
| 1859 | charsetGl = currentState.g2Charset; |
| 1860 | break; |
| 1861 | |
| 1862 | case G3_GL: |
| 1863 | // LS3 |
| 1864 | charsetGl = currentState.g3Charset; |
| 1865 | break; |
| 1866 | |
| 1867 | case NONE: |
| 1868 | // Normal |
| 1869 | charsetGl = currentState.g0Charset; |
| 1870 | break; |
| 1871 | } |
| 1872 | |
| 1873 | switch (currentState.grLockshift) { |
| 1874 | |
| 1875 | case G2_GL: |
| 1876 | assert (false); |
| 1877 | |
| 1878 | case G3_GL: |
| 1879 | assert (false); |
| 1880 | |
| 1881 | case G1_GR: |
| 1882 | // LS1R |
| 1883 | charsetGr = currentState.g1Charset; |
| 1884 | break; |
| 1885 | |
| 1886 | case G2_GR: |
| 1887 | // LS2R |
| 1888 | charsetGr = currentState.g2Charset; |
| 1889 | break; |
| 1890 | |
| 1891 | case G3_GR: |
| 1892 | // LS3R |
| 1893 | charsetGr = currentState.g3Charset; |
| 1894 | break; |
| 1895 | |
| 1896 | case NONE: |
| 1897 | // Normal |
| 1898 | charsetGr = CharacterSet.DEC_SUPPLEMENTAL; |
| 1899 | break; |
| 1900 | } |
| 1901 | |
| 1902 | |
| 1903 | } |
| 1904 | |
| 1905 | // Pull the character |
| 1906 | return mapCharacterCharset(ch, charsetGl, charsetGr); |
| 1907 | } |
| 1908 | |
| 1909 | /** |
| 1910 | * Scroll the text within a scrolling region up n lines. |
| 1911 | * |
| 1912 | * @param regionTop top row of the scrolling region |
| 1913 | * @param regionBottom bottom row of the scrolling region |
| 1914 | * @param n number of lines to scroll |
| 1915 | */ |
| 1916 | private void scrollingRegionScrollUp(final int regionTop, |
| 1917 | final int regionBottom, final int n) { |
| 1918 | |
| 1919 | if (regionTop >= regionBottom) { |
| 1920 | return; |
| 1921 | } |
| 1922 | |
| 1923 | // Sanity check: see if there will be any characters left after the |
| 1924 | // scroll |
| 1925 | if (regionBottom + 1 - regionTop <= n) { |
| 1926 | // There won't be anything left in the region, so just call |
| 1927 | // eraseScreen() and return. |
| 1928 | eraseScreen(regionTop, 0, regionBottom, width - 1, false); |
| 1929 | return; |
| 1930 | } |
| 1931 | |
| 1932 | int remaining = regionBottom + 1 - regionTop - n; |
| 1933 | List<DisplayLine> displayTop = display.subList(0, regionTop); |
| 1934 | List<DisplayLine> displayBottom = display.subList(regionBottom + 1, |
| 1935 | display.size()); |
| 1936 | List<DisplayLine> displayMiddle = display.subList(regionBottom + 1 |
| 1937 | - remaining, regionBottom + 1); |
| 1938 | display = new LinkedList<DisplayLine>(displayTop); |
| 1939 | display.addAll(displayMiddle); |
| 1940 | for (int i = 0; i < n; i++) { |
| 1941 | DisplayLine line = new DisplayLine(currentState.attr); |
| 1942 | line.setReverseColor(reverseVideo); |
| 1943 | display.add(line); |
| 1944 | } |
| 1945 | display.addAll(displayBottom); |
| 1946 | |
| 1947 | assert (display.size() == height); |
| 1948 | } |
| 1949 | |
| 1950 | /** |
| 1951 | * Scroll the text within a scrolling region down n lines. |
| 1952 | * |
| 1953 | * @param regionTop top row of the scrolling region |
| 1954 | * @param regionBottom bottom row of the scrolling region |
| 1955 | * @param n number of lines to scroll |
| 1956 | */ |
| 1957 | private void scrollingRegionScrollDown(final int regionTop, |
| 1958 | final int regionBottom, final int n) { |
| 1959 | |
| 1960 | if (regionTop >= regionBottom) { |
| 1961 | return; |
| 1962 | } |
| 1963 | |
| 1964 | // Sanity check: see if there will be any characters left after the |
| 1965 | // scroll |
| 1966 | if (regionBottom + 1 - regionTop <= n) { |
| 1967 | // There won't be anything left in the region, so just call |
| 1968 | // eraseScreen() and return. |
| 1969 | eraseScreen(regionTop, 0, regionBottom, width - 1, false); |
| 1970 | return; |
| 1971 | } |
| 1972 | |
| 1973 | int remaining = regionBottom + 1 - regionTop - n; |
| 1974 | List<DisplayLine> displayTop = display.subList(0, regionTop); |
| 1975 | List<DisplayLine> displayBottom = display.subList(regionBottom + 1, |
| 1976 | display.size()); |
| 1977 | List<DisplayLine> displayMiddle = display.subList(regionTop, |
| 1978 | regionTop + remaining); |
| 1979 | display = new LinkedList<DisplayLine>(displayTop); |
| 1980 | for (int i = 0; i < n; i++) { |
| 1981 | DisplayLine line = new DisplayLine(currentState.attr); |
| 1982 | line.setReverseColor(reverseVideo); |
| 1983 | display.add(line); |
| 1984 | } |
| 1985 | display.addAll(displayMiddle); |
| 1986 | display.addAll(displayBottom); |
| 1987 | |
| 1988 | assert (display.size() == height); |
| 1989 | } |
| 1990 | |
| 1991 | /** |
| 1992 | * Process a control character. |
| 1993 | * |
| 1994 | * @param ch 8-bit character from the remote side |
| 1995 | */ |
| 1996 | private void handleControlChar(final char ch) { |
| 1997 | assert ((ch <= 0x1F) || ((ch >= 0x7F) && (ch <= 0x9F))); |
| 1998 | |
| 1999 | switch (ch) { |
| 2000 | |
| 2001 | case 0x00: |
| 2002 | // NUL - discard |
| 2003 | return; |
| 2004 | |
| 2005 | case 0x05: |
| 2006 | // ENQ |
| 2007 | |
| 2008 | // Transmit the answerback message. |
| 2009 | // Not supported |
| 2010 | break; |
| 2011 | |
| 2012 | case 0x07: |
| 2013 | // BEL |
| 2014 | // Not supported |
| 2015 | break; |
| 2016 | |
| 2017 | case 0x08: |
| 2018 | // BS |
| 2019 | cursorLeft(1, false); |
| 2020 | break; |
| 2021 | |
| 2022 | case 0x09: |
| 2023 | // HT |
| 2024 | advanceToNextTabStop(); |
| 2025 | break; |
| 2026 | |
| 2027 | case 0x0A: |
| 2028 | // LF |
| 2029 | linefeed(); |
| 2030 | break; |
| 2031 | |
| 2032 | case 0x0B: |
| 2033 | // VT |
| 2034 | linefeed(); |
| 2035 | break; |
| 2036 | |
| 2037 | case 0x0C: |
| 2038 | // FF |
| 2039 | linefeed(); |
| 2040 | break; |
| 2041 | |
| 2042 | case 0x0D: |
| 2043 | // CR |
| 2044 | carriageReturn(); |
| 2045 | break; |
| 2046 | |
| 2047 | case 0x0E: |
| 2048 | // SO |
| 2049 | shiftOut = true; |
| 2050 | currentState.glLockshift = LockshiftMode.NONE; |
| 2051 | break; |
| 2052 | |
| 2053 | case 0x0F: |
| 2054 | // SI |
| 2055 | shiftOut = false; |
| 2056 | currentState.glLockshift = LockshiftMode.NONE; |
| 2057 | break; |
| 2058 | |
| 2059 | case 0x84: |
| 2060 | // IND |
| 2061 | ind(); |
| 2062 | break; |
| 2063 | |
| 2064 | case 0x85: |
| 2065 | // NEL |
| 2066 | nel(); |
| 2067 | break; |
| 2068 | |
| 2069 | case 0x88: |
| 2070 | // HTS |
| 2071 | hts(); |
| 2072 | break; |
| 2073 | |
| 2074 | case 0x8D: |
| 2075 | // RI |
| 2076 | ri(); |
| 2077 | break; |
| 2078 | |
| 2079 | case 0x8E: |
| 2080 | // SS2 |
| 2081 | singleshift = Singleshift.SS2; |
| 2082 | break; |
| 2083 | |
| 2084 | case 0x8F: |
| 2085 | // SS3 |
| 2086 | singleshift = Singleshift.SS3; |
| 2087 | break; |
| 2088 | |
| 2089 | default: |
| 2090 | break; |
| 2091 | } |
| 2092 | |
| 2093 | } |
| 2094 | |
| 2095 | /** |
| 2096 | * Advance the cursor to the next tab stop. |
| 2097 | */ |
| 2098 | private void advanceToNextTabStop() { |
| 2099 | if (tabStops.size() == 0) { |
| 2100 | // Go to the rightmost column |
| 2101 | cursorRight(rightMargin - currentState.cursorX, false); |
| 2102 | return; |
| 2103 | } |
| 2104 | for (Integer stop: tabStops) { |
| 2105 | if (stop > currentState.cursorX) { |
| 2106 | cursorRight(stop - currentState.cursorX, false); |
| 2107 | return; |
| 2108 | } |
| 2109 | } |
| 2110 | /* |
| 2111 | * We got here, meaning there isn't a tab stop beyond the current |
| 2112 | * cursor position. Place the cursor of the right-most edge of the |
| 2113 | * screen. |
| 2114 | */ |
| 2115 | cursorRight(rightMargin - currentState.cursorX, false); |
| 2116 | } |
| 2117 | |
| 2118 | /** |
| 2119 | * Save a character into the collect buffer. |
| 2120 | * |
| 2121 | * @param ch character to save |
| 2122 | */ |
| 2123 | private void collect(final char ch) { |
| 2124 | collectBuffer.append(ch); |
| 2125 | } |
| 2126 | |
| 2127 | /** |
| 2128 | * Save a byte into the CSI parameters buffer. |
| 2129 | * |
| 2130 | * @param ch byte to save |
| 2131 | */ |
| 2132 | private void param(final byte ch) { |
| 2133 | if (csiParams.size() == 0) { |
| 2134 | csiParams.add(new Integer(0)); |
| 2135 | } |
| 2136 | Integer x = csiParams.get(csiParams.size() - 1); |
| 2137 | if ((ch >= '0') && (ch <= '9')) { |
| 2138 | x *= 10; |
| 2139 | x += (ch - '0'); |
| 2140 | csiParams.set(csiParams.size() - 1, x); |
| 2141 | } |
| 2142 | |
| 2143 | if (ch == ';') { |
| 2144 | csiParams.add(new Integer(0)); |
| 2145 | } |
| 2146 | } |
| 2147 | |
| 2148 | /** |
| 2149 | * Get a CSI parameter value, with a default. |
| 2150 | * |
| 2151 | * @param position parameter index. 0 is the first parameter. |
| 2152 | * @param defaultValue value to use if csiParams[position] doesn't exist |
| 2153 | * @return parameter value |
| 2154 | */ |
| 2155 | private int getCsiParam(final int position, final int defaultValue) { |
| 2156 | if (csiParams.size() < position + 1) { |
| 2157 | return defaultValue; |
| 2158 | } |
| 2159 | return csiParams.get(position).intValue(); |
| 2160 | } |
| 2161 | |
| 2162 | /** |
| 2163 | * Get a CSI parameter value, clamped to within min/max. |
| 2164 | * |
| 2165 | * @param position parameter index. 0 is the first parameter. |
| 2166 | * @param defaultValue value to use if csiParams[position] doesn't exist |
| 2167 | * @param minValue minimum value inclusive |
| 2168 | * @param maxValue maximum value inclusive |
| 2169 | * @return parameter value |
| 2170 | */ |
| 2171 | private int getCsiParam(final int position, final int defaultValue, |
| 2172 | final int minValue, final int maxValue) { |
| 2173 | |
| 2174 | assert (minValue <= maxValue); |
| 2175 | int value = getCsiParam(position, defaultValue); |
| 2176 | if (value < minValue) { |
| 2177 | value = minValue; |
| 2178 | } |
| 2179 | if (value > maxValue) { |
| 2180 | value = maxValue; |
| 2181 | } |
| 2182 | return value; |
| 2183 | } |
| 2184 | |
| 2185 | /** |
| 2186 | * Set or unset a toggle. |
| 2187 | * |
| 2188 | * @param value true for set ('h'), false for reset ('l') |
| 2189 | */ |
| 2190 | private void setToggle(final boolean value) { |
| 2191 | boolean decPrivateModeFlag = false; |
| 2192 | for (int i = 0; i < collectBuffer.length(); i++) { |
| 2193 | if (collectBuffer.charAt(i) == '?') { |
| 2194 | decPrivateModeFlag = true; |
| 2195 | break; |
| 2196 | } |
| 2197 | } |
| 2198 | |
| 2199 | for (Integer i: csiParams) { |
| 2200 | |
| 2201 | switch (i) { |
| 2202 | |
| 2203 | case 1: |
| 2204 | if (decPrivateModeFlag == true) { |
| 2205 | // DECCKM |
| 2206 | if (value == true) { |
| 2207 | // Use application arrow keys |
| 2208 | arrowKeyMode = ArrowKeyMode.VT100; |
| 2209 | } else { |
| 2210 | // Use ANSI arrow keys |
| 2211 | arrowKeyMode = ArrowKeyMode.ANSI; |
| 2212 | } |
| 2213 | } |
| 2214 | break; |
| 2215 | case 2: |
| 2216 | if (decPrivateModeFlag == true) { |
| 2217 | if (value == false) { |
| 2218 | |
| 2219 | // DECANM |
| 2220 | vt52Mode = true; |
| 2221 | arrowKeyMode = ArrowKeyMode.VT52; |
| 2222 | |
| 2223 | /* |
| 2224 | * From the VT102 docs: "You use ANSI mode to select |
| 2225 | * most terminal features; the terminal uses the same |
| 2226 | * features when it switches to VT52 mode. You |
| 2227 | * cannot, however, change most of these features in |
| 2228 | * VT52 mode." |
| 2229 | * |
| 2230 | * In other words, do not reset any other attributes |
| 2231 | * when switching between VT52 submode and ANSI. |
| 2232 | * |
| 2233 | * HOWEVER, the real vt100 does switch the character |
| 2234 | * set according to Usenet. |
| 2235 | */ |
| 2236 | currentState.g0Charset = CharacterSet.US; |
| 2237 | currentState.g1Charset = CharacterSet.DRAWING; |
| 2238 | shiftOut = false; |
| 2239 | |
| 2240 | if ((type == DeviceType.VT220) |
| 2241 | || (type == DeviceType.XTERM)) { |
| 2242 | |
| 2243 | // VT52 mode is explicitly 7-bit |
| 2244 | s8c1t = false; |
| 2245 | singleshift = Singleshift.NONE; |
| 2246 | } |
| 2247 | } |
| 2248 | } else { |
| 2249 | // KAM |
| 2250 | if (value == true) { |
| 2251 | // Turn off keyboard |
| 2252 | // Not supported |
| 2253 | } else { |
| 2254 | // Turn on keyboard |
| 2255 | // Not supported |
| 2256 | } |
| 2257 | } |
| 2258 | break; |
| 2259 | case 3: |
| 2260 | if (decPrivateModeFlag == true) { |
| 2261 | // DECCOLM |
| 2262 | if (value == true) { |
| 2263 | // 132 columns |
| 2264 | columns132 = true; |
| 2265 | rightMargin = 131; |
| 2266 | } else { |
| 2267 | // 80 columns |
| 2268 | columns132 = false; |
| 2269 | rightMargin = 79; |
| 2270 | } |
| 2271 | width = rightMargin + 1; |
| 2272 | // Entire screen is cleared, and scrolling region is |
| 2273 | // reset |
| 2274 | eraseScreen(0, 0, height - 1, width - 1, false); |
| 2275 | scrollRegionTop = 0; |
| 2276 | scrollRegionBottom = height - 1; |
| 2277 | // Also home the cursor |
| 2278 | cursorPosition(0, 0); |
| 2279 | } |
| 2280 | break; |
| 2281 | case 4: |
| 2282 | if (decPrivateModeFlag == true) { |
| 2283 | // DECSCLM |
| 2284 | if (value == true) { |
| 2285 | // Smooth scroll |
| 2286 | // Not supported |
| 2287 | } else { |
| 2288 | // Jump scroll |
| 2289 | // Not supported |
| 2290 | } |
| 2291 | } else { |
| 2292 | // IRM |
| 2293 | if (value == true) { |
| 2294 | insertMode = true; |
| 2295 | } else { |
| 2296 | insertMode = false; |
| 2297 | } |
| 2298 | } |
| 2299 | break; |
| 2300 | case 5: |
| 2301 | if (decPrivateModeFlag == true) { |
| 2302 | // DECSCNM |
| 2303 | if (value == true) { |
| 2304 | /* |
| 2305 | * Set selects reverse screen, a white screen |
| 2306 | * background with black characters. |
| 2307 | */ |
| 2308 | if (reverseVideo != true) { |
| 2309 | /* |
| 2310 | * If in normal video, switch it back |
| 2311 | */ |
| 2312 | invertDisplayColors(); |
| 2313 | } |
| 2314 | reverseVideo = true; |
| 2315 | } else { |
| 2316 | /* |
| 2317 | * Reset selects normal screen, a black screen |
| 2318 | * background with white characters. |
| 2319 | */ |
| 2320 | if (reverseVideo == true) { |
| 2321 | /* |
| 2322 | * If in reverse video already, switch it back |
| 2323 | */ |
| 2324 | invertDisplayColors(); |
| 2325 | } |
| 2326 | reverseVideo = false; |
| 2327 | } |
| 2328 | } |
| 2329 | break; |
| 2330 | case 6: |
| 2331 | if (decPrivateModeFlag == true) { |
| 2332 | // DECOM |
| 2333 | if (value == true) { |
| 2334 | // Origin is relative to scroll region cursor. |
| 2335 | // Cursor can NEVER leave scrolling region. |
| 2336 | currentState.originMode = true; |
| 2337 | cursorPosition(0, 0); |
| 2338 | } else { |
| 2339 | // Origin is absolute to entire screen. Cursor can |
| 2340 | // leave the scrolling region via cup() and hvp(). |
| 2341 | currentState.originMode = false; |
| 2342 | cursorPosition(0, 0); |
| 2343 | } |
| 2344 | } |
| 2345 | break; |
| 2346 | case 7: |
| 2347 | if (decPrivateModeFlag == true) { |
| 2348 | // DECAWM |
| 2349 | if (value == true) { |
| 2350 | // Turn linewrap on |
| 2351 | currentState.lineWrap = true; |
| 2352 | } else { |
| 2353 | // Turn linewrap off |
| 2354 | currentState.lineWrap = false; |
| 2355 | } |
| 2356 | } |
| 2357 | break; |
| 2358 | case 8: |
| 2359 | if (decPrivateModeFlag == true) { |
| 2360 | // DECARM |
| 2361 | if (value == true) { |
| 2362 | // Keyboard auto-repeat on |
| 2363 | // Not supported |
| 2364 | } else { |
| 2365 | // Keyboard auto-repeat off |
| 2366 | // Not supported |
| 2367 | } |
| 2368 | } |
| 2369 | break; |
| 2370 | case 12: |
| 2371 | if (decPrivateModeFlag == false) { |
| 2372 | // SRM |
| 2373 | if (value == true) { |
| 2374 | // Local echo off |
| 2375 | fullDuplex = true; |
| 2376 | } else { |
| 2377 | // Local echo on |
| 2378 | fullDuplex = false; |
| 2379 | } |
| 2380 | } |
| 2381 | break; |
| 2382 | case 18: |
| 2383 | if (decPrivateModeFlag == true) { |
| 2384 | // DECPFF |
| 2385 | // Not supported |
| 2386 | } |
| 2387 | break; |
| 2388 | case 19: |
| 2389 | if (decPrivateModeFlag == true) { |
| 2390 | // DECPEX |
| 2391 | // Not supported |
| 2392 | } |
| 2393 | break; |
| 2394 | case 20: |
| 2395 | if (decPrivateModeFlag == false) { |
| 2396 | // LNM |
| 2397 | if (value == true) { |
| 2398 | /* |
| 2399 | * Set causes a received linefeed, form feed, or |
| 2400 | * vertical tab to move cursor to first column of |
| 2401 | * next line. RETURN transmits both a carriage return |
| 2402 | * and linefeed. This selection is also called new |
| 2403 | * line option. |
| 2404 | */ |
| 2405 | newLineMode = true; |
| 2406 | } else { |
| 2407 | /* |
| 2408 | * Reset causes a received linefeed, form feed, or |
| 2409 | * vertical tab to move cursor to next line in |
| 2410 | * current column. RETURN transmits a carriage |
| 2411 | * return. |
| 2412 | */ |
| 2413 | newLineMode = false; |
| 2414 | } |
| 2415 | } |
| 2416 | break; |
| 2417 | |
| 2418 | case 25: |
| 2419 | if ((type == DeviceType.VT220) || (type == DeviceType.XTERM)) { |
| 2420 | if (decPrivateModeFlag == true) { |
| 2421 | // DECTCEM |
| 2422 | if (value == true) { |
| 2423 | // Visible cursor |
| 2424 | cursorVisible = true; |
| 2425 | } else { |
| 2426 | // Invisible cursor |
| 2427 | cursorVisible = false; |
| 2428 | } |
| 2429 | } |
| 2430 | } |
| 2431 | break; |
| 2432 | |
| 2433 | case 42: |
| 2434 | if ((type == DeviceType.VT220) || (type == DeviceType.XTERM)) { |
| 2435 | if (decPrivateModeFlag == true) { |
| 2436 | // DECNRCM |
| 2437 | if (value == true) { |
| 2438 | // Select national mode NRC |
| 2439 | // Not supported |
| 2440 | } else { |
| 2441 | // Select multi-national mode |
| 2442 | // Not supported |
| 2443 | } |
| 2444 | } |
| 2445 | } |
| 2446 | |
| 2447 | break; |
| 2448 | |
| 2449 | case 1000: |
| 2450 | if ((type == DeviceType.XTERM) |
| 2451 | && (decPrivateModeFlag == true) |
| 2452 | ) { |
| 2453 | // Mouse: normal tracking mode |
| 2454 | if (value == true) { |
| 2455 | mouseProtocol = MouseProtocol.NORMAL; |
| 2456 | } else { |
| 2457 | mouseProtocol = MouseProtocol.OFF; |
| 2458 | } |
| 2459 | } |
| 2460 | break; |
| 2461 | |
| 2462 | case 1002: |
| 2463 | if ((type == DeviceType.XTERM) |
| 2464 | && (decPrivateModeFlag == true) |
| 2465 | ) { |
| 2466 | // Mouse: normal tracking mode |
| 2467 | if (value == true) { |
| 2468 | mouseProtocol = MouseProtocol.BUTTONEVENT; |
| 2469 | } else { |
| 2470 | mouseProtocol = MouseProtocol.OFF; |
| 2471 | } |
| 2472 | } |
| 2473 | break; |
| 2474 | |
| 2475 | case 1003: |
| 2476 | if ((type == DeviceType.XTERM) |
| 2477 | && (decPrivateModeFlag == true) |
| 2478 | ) { |
| 2479 | // Mouse: Any-event tracking mode |
| 2480 | if (value == true) { |
| 2481 | mouseProtocol = MouseProtocol.ANYEVENT; |
| 2482 | } else { |
| 2483 | mouseProtocol = MouseProtocol.OFF; |
| 2484 | } |
| 2485 | } |
| 2486 | break; |
| 2487 | |
| 2488 | case 1005: |
| 2489 | if ((type == DeviceType.XTERM) |
| 2490 | && (decPrivateModeFlag == true) |
| 2491 | ) { |
| 2492 | // Mouse: UTF-8 coordinates |
| 2493 | if (value == true) { |
| 2494 | mouseEncoding = MouseEncoding.UTF8; |
| 2495 | } else { |
| 2496 | mouseEncoding = MouseEncoding.X10; |
| 2497 | } |
| 2498 | } |
| 2499 | break; |
| 2500 | |
| 2501 | case 1006: |
| 2502 | if ((type == DeviceType.XTERM) |
| 2503 | && (decPrivateModeFlag == true) |
| 2504 | ) { |
| 2505 | // Mouse: SGR coordinates |
| 2506 | if (value == true) { |
| 2507 | mouseEncoding = MouseEncoding.SGR; |
| 2508 | } else { |
| 2509 | mouseEncoding = MouseEncoding.X10; |
| 2510 | } |
| 2511 | } |
| 2512 | break; |
| 2513 | |
| 2514 | default: |
| 2515 | break; |
| 2516 | |
| 2517 | } |
| 2518 | } |
| 2519 | } |
| 2520 | |
| 2521 | /** |
| 2522 | * DECSC - Save cursor. |
| 2523 | */ |
| 2524 | private void decsc() { |
| 2525 | savedState.setTo(currentState); |
| 2526 | } |
| 2527 | |
| 2528 | /** |
| 2529 | * DECRC - Restore cursor. |
| 2530 | */ |
| 2531 | private void decrc() { |
| 2532 | currentState.setTo(savedState); |
| 2533 | } |
| 2534 | |
| 2535 | /** |
| 2536 | * IND - Index. |
| 2537 | */ |
| 2538 | private void ind() { |
| 2539 | // Move the cursor and scroll if necessary. If at the bottom line |
| 2540 | // already, a scroll up is supposed to be performed. |
| 2541 | if (currentState.cursorY == scrollRegionBottom) { |
| 2542 | scrollingRegionScrollUp(scrollRegionTop, scrollRegionBottom, 1); |
| 2543 | } |
| 2544 | cursorDown(1, true); |
| 2545 | } |
| 2546 | |
| 2547 | /** |
| 2548 | * RI - Reverse index. |
| 2549 | */ |
| 2550 | private void ri() { |
| 2551 | // Move the cursor and scroll if necessary. If at the top line |
| 2552 | // already, a scroll down is supposed to be performed. |
| 2553 | if (currentState.cursorY == scrollRegionTop) { |
| 2554 | scrollingRegionScrollDown(scrollRegionTop, scrollRegionBottom, 1); |
| 2555 | } |
| 2556 | cursorUp(1, true); |
| 2557 | } |
| 2558 | |
| 2559 | /** |
| 2560 | * NEL - Next line. |
| 2561 | */ |
| 2562 | private void nel() { |
| 2563 | // Move the cursor and scroll if necessary. If at the bottom line |
| 2564 | // already, a scroll up is supposed to be performed. |
| 2565 | if (currentState.cursorY == scrollRegionBottom) { |
| 2566 | scrollingRegionScrollUp(scrollRegionTop, scrollRegionBottom, 1); |
| 2567 | } |
| 2568 | cursorDown(1, true); |
| 2569 | |
| 2570 | // Reset to the beginning of the next line |
| 2571 | currentState.cursorX = 0; |
| 2572 | } |
| 2573 | |
| 2574 | /** |
| 2575 | * DECKPAM - Keypad application mode. |
| 2576 | */ |
| 2577 | private void deckpam() { |
| 2578 | keypadMode = KeypadMode.Application; |
| 2579 | } |
| 2580 | |
| 2581 | /** |
| 2582 | * DECKPNM - Keypad numeric mode. |
| 2583 | */ |
| 2584 | private void deckpnm() { |
| 2585 | keypadMode = KeypadMode.Numeric; |
| 2586 | } |
| 2587 | |
| 2588 | /** |
| 2589 | * Move up n spaces. |
| 2590 | * |
| 2591 | * @param n number of spaces to move |
| 2592 | * @param honorScrollRegion if true, then do nothing if the cursor is |
| 2593 | * outside the scrolling region |
| 2594 | */ |
| 2595 | private void cursorUp(final int n, final boolean honorScrollRegion) { |
| 2596 | int top; |
| 2597 | |
| 2598 | /* |
| 2599 | * Special case: if a user moves the cursor from the right margin, we |
| 2600 | * have to reset the VT100 right margin flag. |
| 2601 | */ |
| 2602 | if (n > 0) { |
| 2603 | wrapLineFlag = false; |
| 2604 | } |
| 2605 | |
| 2606 | for (int i = 0; i < n; i++) { |
| 2607 | if (honorScrollRegion == true) { |
| 2608 | // Honor the scrolling region |
| 2609 | if ((currentState.cursorY < scrollRegionTop) |
| 2610 | || (currentState.cursorY > scrollRegionBottom) |
| 2611 | ) { |
| 2612 | // Outside region, do nothing |
| 2613 | return; |
| 2614 | } |
| 2615 | // Inside region, go up |
| 2616 | top = scrollRegionTop; |
| 2617 | } else { |
| 2618 | // Non-scrolling case |
| 2619 | top = 0; |
| 2620 | } |
| 2621 | |
| 2622 | if (currentState.cursorY > top) { |
| 2623 | currentState.cursorY--; |
| 2624 | } |
| 2625 | } |
| 2626 | } |
| 2627 | |
| 2628 | /** |
| 2629 | * Move down n spaces. |
| 2630 | * |
| 2631 | * @param n number of spaces to move |
| 2632 | * @param honorScrollRegion if true, then do nothing if the cursor is |
| 2633 | * outside the scrolling region |
| 2634 | */ |
| 2635 | private void cursorDown(final int n, final boolean honorScrollRegion) { |
| 2636 | int bottom; |
| 2637 | |
| 2638 | /* |
| 2639 | * Special case: if a user moves the cursor from the right margin, we |
| 2640 | * have to reset the VT100 right margin flag. |
| 2641 | */ |
| 2642 | if (n > 0) { |
| 2643 | wrapLineFlag = false; |
| 2644 | } |
| 2645 | |
| 2646 | for (int i = 0; i < n; i++) { |
| 2647 | |
| 2648 | if (honorScrollRegion == true) { |
| 2649 | // Honor the scrolling region |
| 2650 | if (currentState.cursorY > scrollRegionBottom) { |
| 2651 | // Outside region, do nothing |
| 2652 | return; |
| 2653 | } |
| 2654 | // Inside region, go down |
| 2655 | bottom = scrollRegionBottom; |
| 2656 | } else { |
| 2657 | // Non-scrolling case |
| 2658 | bottom = height - 1; |
| 2659 | } |
| 2660 | |
| 2661 | if (currentState.cursorY < bottom) { |
| 2662 | currentState.cursorY++; |
| 2663 | } |
| 2664 | } |
| 2665 | } |
| 2666 | |
| 2667 | /** |
| 2668 | * Move left n spaces. |
| 2669 | * |
| 2670 | * @param n number of spaces to move |
| 2671 | * @param honorScrollRegion if true, then do nothing if the cursor is |
| 2672 | * outside the scrolling region |
| 2673 | */ |
| 2674 | private void cursorLeft(final int n, final boolean honorScrollRegion) { |
| 2675 | /* |
| 2676 | * Special case: if a user moves the cursor from the right margin, we |
| 2677 | * have to reset the VT100 right margin flag. |
| 2678 | */ |
| 2679 | if (n > 0) { |
| 2680 | wrapLineFlag = false; |
| 2681 | } |
| 2682 | |
| 2683 | for (int i = 0; i < n; i++) { |
| 2684 | if (honorScrollRegion == true) { |
| 2685 | // Honor the scrolling region |
| 2686 | if ((currentState.cursorY < scrollRegionTop) |
| 2687 | || (currentState.cursorY > scrollRegionBottom) |
| 2688 | ) { |
| 2689 | // Outside region, do nothing |
| 2690 | return; |
| 2691 | } |
| 2692 | } |
| 2693 | |
| 2694 | if (currentState.cursorX > 0) { |
| 2695 | currentState.cursorX--; |
| 2696 | } |
| 2697 | } |
| 2698 | } |
| 2699 | |
| 2700 | /** |
| 2701 | * Move right n spaces. |
| 2702 | * |
| 2703 | * @param n number of spaces to move |
| 2704 | * @param honorScrollRegion if true, then do nothing if the cursor is |
| 2705 | * outside the scrolling region |
| 2706 | */ |
| 2707 | private void cursorRight(final int n, final boolean honorScrollRegion) { |
| 2708 | int rightMargin = this.rightMargin; |
| 2709 | |
| 2710 | /* |
| 2711 | * Special case: if a user moves the cursor from the right margin, we |
| 2712 | * have to reset the VT100 right margin flag. |
| 2713 | */ |
| 2714 | if (n > 0) { |
| 2715 | wrapLineFlag = false; |
| 2716 | } |
| 2717 | |
| 2718 | if (display.get(currentState.cursorY).isDoubleWidth()) { |
| 2719 | rightMargin = ((rightMargin + 1) / 2) - 1; |
| 2720 | } |
| 2721 | |
| 2722 | for (int i = 0; i < n; i++) { |
| 2723 | if (honorScrollRegion == true) { |
| 2724 | // Honor the scrolling region |
| 2725 | if ((currentState.cursorY < scrollRegionTop) |
| 2726 | || (currentState.cursorY > scrollRegionBottom) |
| 2727 | ) { |
| 2728 | // Outside region, do nothing |
| 2729 | return; |
| 2730 | } |
| 2731 | } |
| 2732 | |
| 2733 | if (currentState.cursorX < rightMargin) { |
| 2734 | currentState.cursorX++; |
| 2735 | } |
| 2736 | } |
| 2737 | } |
| 2738 | |
| 2739 | /** |
| 2740 | * Move cursor to (col, row) where (0, 0) is the top-left corner. |
| 2741 | * |
| 2742 | * @param row row to move to |
| 2743 | * @param col column to move to |
| 2744 | */ |
| 2745 | private void cursorPosition(int row, final int col) { |
| 2746 | int rightMargin = this.rightMargin; |
| 2747 | |
| 2748 | assert (col >= 0); |
| 2749 | assert (row >= 0); |
| 2750 | |
| 2751 | if (display.get(currentState.cursorY).isDoubleWidth()) { |
| 2752 | rightMargin = ((rightMargin + 1) / 2) - 1; |
| 2753 | } |
| 2754 | |
| 2755 | // Set column number |
| 2756 | currentState.cursorX = col; |
| 2757 | |
| 2758 | // Sanity check, bring column back to margin. |
| 2759 | if (currentState.cursorX > rightMargin) { |
| 2760 | currentState.cursorX = rightMargin; |
| 2761 | } |
| 2762 | |
| 2763 | // Set row number |
| 2764 | if (currentState.originMode == true) { |
| 2765 | row += scrollRegionTop; |
| 2766 | } |
| 2767 | if (currentState.cursorY < row) { |
| 2768 | cursorDown(row - currentState.cursorY, false); |
| 2769 | } else if (currentState.cursorY > row) { |
| 2770 | cursorUp(currentState.cursorY - row, false); |
| 2771 | } |
| 2772 | |
| 2773 | wrapLineFlag = false; |
| 2774 | } |
| 2775 | |
| 2776 | /** |
| 2777 | * HTS - Horizontal tabulation set. |
| 2778 | */ |
| 2779 | private void hts() { |
| 2780 | for (Integer stop: tabStops) { |
| 2781 | if (stop == currentState.cursorX) { |
| 2782 | // Already have a tab stop here |
| 2783 | return; |
| 2784 | } |
| 2785 | } |
| 2786 | |
| 2787 | // Append a tab stop to the end of the array and resort them |
| 2788 | tabStops.add(currentState.cursorX); |
| 2789 | Collections.sort(tabStops); |
| 2790 | } |
| 2791 | |
| 2792 | /** |
| 2793 | * DECSWL - Single-width line. |
| 2794 | */ |
| 2795 | private void decswl() { |
| 2796 | display.get(currentState.cursorY).setDoubleWidth(false); |
| 2797 | display.get(currentState.cursorY).setDoubleHeight(0); |
| 2798 | } |
| 2799 | |
| 2800 | /** |
| 2801 | * DECDWL - Double-width line. |
| 2802 | */ |
| 2803 | private void decdwl() { |
| 2804 | display.get(currentState.cursorY).setDoubleWidth(true); |
| 2805 | display.get(currentState.cursorY).setDoubleHeight(0); |
| 2806 | } |
| 2807 | |
| 2808 | /** |
| 2809 | * DECHDL - Double-height + double-width line. |
| 2810 | * |
| 2811 | * @param topHalf if true, this sets the row to be the top half row of a |
| 2812 | * double-height row |
| 2813 | */ |
| 2814 | private void dechdl(final boolean topHalf) { |
| 2815 | display.get(currentState.cursorY).setDoubleWidth(true); |
| 2816 | if (topHalf == true) { |
| 2817 | display.get(currentState.cursorY).setDoubleHeight(1); |
| 2818 | } else { |
| 2819 | display.get(currentState.cursorY).setDoubleHeight(2); |
| 2820 | } |
| 2821 | } |
| 2822 | |
| 2823 | /** |
| 2824 | * DECALN - Screen alignment display. |
| 2825 | */ |
| 2826 | private void decaln() { |
| 2827 | Cell newCell = new Cell(); |
| 2828 | newCell.setChar('E'); |
| 2829 | for (DisplayLine line: display) { |
| 2830 | for (int i = 0; i < line.length(); i++) { |
| 2831 | line.replace(i, newCell); |
| 2832 | } |
| 2833 | } |
| 2834 | } |
| 2835 | |
| 2836 | /** |
| 2837 | * DECSCL - Compatibility level. |
| 2838 | */ |
| 2839 | private void decscl() { |
| 2840 | int i = getCsiParam(0, 0); |
| 2841 | int j = getCsiParam(1, 0); |
| 2842 | |
| 2843 | if (i == 61) { |
| 2844 | // Reset fonts |
| 2845 | currentState.g0Charset = CharacterSet.US; |
| 2846 | currentState.g1Charset = CharacterSet.DRAWING; |
| 2847 | s8c1t = false; |
| 2848 | } else if (i == 62) { |
| 2849 | |
| 2850 | if ((j == 0) || (j == 2)) { |
| 2851 | s8c1t = true; |
| 2852 | } else if (j == 1) { |
| 2853 | s8c1t = false; |
| 2854 | } |
| 2855 | } |
| 2856 | } |
| 2857 | |
| 2858 | /** |
| 2859 | * CUD - Cursor down. |
| 2860 | */ |
| 2861 | private void cud() { |
| 2862 | cursorDown(getCsiParam(0, 1, 1, height), true); |
| 2863 | } |
| 2864 | |
| 2865 | /** |
| 2866 | * CUF - Cursor forward. |
| 2867 | */ |
| 2868 | private void cuf() { |
| 2869 | cursorRight(getCsiParam(0, 1, 1, rightMargin + 1), true); |
| 2870 | } |
| 2871 | |
| 2872 | /** |
| 2873 | * CUB - Cursor backward. |
| 2874 | */ |
| 2875 | private void cub() { |
| 2876 | cursorLeft(getCsiParam(0, 1, 1, currentState.cursorX + 1), true); |
| 2877 | } |
| 2878 | |
| 2879 | /** |
| 2880 | * CUU - Cursor up. |
| 2881 | */ |
| 2882 | private void cuu() { |
| 2883 | cursorUp(getCsiParam(0, 1, 1, currentState.cursorY + 1), true); |
| 2884 | } |
| 2885 | |
| 2886 | /** |
| 2887 | * CUP - Cursor position. |
| 2888 | */ |
| 2889 | private void cup() { |
| 2890 | cursorPosition(getCsiParam(0, 1, 1, height) - 1, |
| 2891 | getCsiParam(1, 1, 1, rightMargin + 1) - 1); |
| 2892 | } |
| 2893 | |
| 2894 | /** |
| 2895 | * CNL - Cursor down and to column 1. |
| 2896 | */ |
| 2897 | private void cnl() { |
| 2898 | cursorDown(getCsiParam(0, 1, 1, height), true); |
| 2899 | // To column 0 |
| 2900 | cursorLeft(currentState.cursorX, true); |
| 2901 | } |
| 2902 | |
| 2903 | /** |
| 2904 | * CPL - Cursor up and to column 1. |
| 2905 | */ |
| 2906 | private void cpl() { |
| 2907 | cursorUp(getCsiParam(0, 1, 1, currentState.cursorY + 1), true); |
| 2908 | // To column 0 |
| 2909 | cursorLeft(currentState.cursorX, true); |
| 2910 | } |
| 2911 | |
| 2912 | /** |
| 2913 | * CHA - Cursor to column # in current row. |
| 2914 | */ |
| 2915 | private void cha() { |
| 2916 | cursorPosition(currentState.cursorY, |
| 2917 | getCsiParam(0, 1, 1, rightMargin + 1) - 1); |
| 2918 | } |
| 2919 | |
| 2920 | /** |
| 2921 | * VPA - Cursor to row #, same column. |
| 2922 | */ |
| 2923 | private void vpa() { |
| 2924 | cursorPosition(getCsiParam(0, 1, 1, height) - 1, |
| 2925 | currentState.cursorX); |
| 2926 | } |
| 2927 | |
| 2928 | /** |
| 2929 | * ED - Erase in display. |
| 2930 | */ |
| 2931 | private void ed() { |
| 2932 | boolean honorProtected = false; |
| 2933 | boolean decPrivateModeFlag = false; |
| 2934 | |
| 2935 | for (int i = 0; i < collectBuffer.length(); i++) { |
| 2936 | if (collectBuffer.charAt(i) == '?') { |
| 2937 | decPrivateModeFlag = true; |
| 2938 | break; |
| 2939 | } |
| 2940 | } |
| 2941 | |
| 2942 | if (((type == DeviceType.VT220) || (type == DeviceType.XTERM)) |
| 2943 | && (decPrivateModeFlag == true) |
| 2944 | ) { |
| 2945 | honorProtected = true; |
| 2946 | } |
| 2947 | |
| 2948 | int i = getCsiParam(0, 0); |
| 2949 | |
| 2950 | if (i == 0) { |
| 2951 | // Erase from here to end of screen |
| 2952 | if (currentState.cursorY < height - 1) { |
| 2953 | eraseScreen(currentState.cursorY + 1, 0, height - 1, width - 1, |
| 2954 | honorProtected); |
| 2955 | } |
| 2956 | eraseLine(currentState.cursorX, width - 1, honorProtected); |
| 2957 | } else if (i == 1) { |
| 2958 | // Erase from beginning of screen to here |
| 2959 | eraseScreen(0, 0, currentState.cursorY - 1, width - 1, |
| 2960 | honorProtected); |
| 2961 | eraseLine(0, currentState.cursorX, honorProtected); |
| 2962 | } else if (i == 2) { |
| 2963 | // Erase entire screen |
| 2964 | eraseScreen(0, 0, height - 1, width - 1, honorProtected); |
| 2965 | } |
| 2966 | } |
| 2967 | |
| 2968 | /** |
| 2969 | * EL - Erase in line. |
| 2970 | */ |
| 2971 | private void el() { |
| 2972 | boolean honorProtected = false; |
| 2973 | boolean decPrivateModeFlag = false; |
| 2974 | |
| 2975 | for (int i = 0; i < collectBuffer.length(); i++) { |
| 2976 | if (collectBuffer.charAt(i) == '?') { |
| 2977 | decPrivateModeFlag = true; |
| 2978 | break; |
| 2979 | } |
| 2980 | } |
| 2981 | |
| 2982 | if (((type == DeviceType.VT220) || (type == DeviceType.XTERM)) |
| 2983 | && (decPrivateModeFlag == true) |
| 2984 | ) { |
| 2985 | honorProtected = true; |
| 2986 | } |
| 2987 | |
| 2988 | int i = getCsiParam(0, 0); |
| 2989 | |
| 2990 | if (i == 0) { |
| 2991 | // Erase from here to end of line |
| 2992 | eraseLine(currentState.cursorX, width - 1, honorProtected); |
| 2993 | } else if (i == 1) { |
| 2994 | // Erase from beginning of line to here |
| 2995 | eraseLine(0, currentState.cursorX, honorProtected); |
| 2996 | } else if (i == 2) { |
| 2997 | // Erase entire line |
| 2998 | eraseLine(0, width - 1, honorProtected); |
| 2999 | } |
| 3000 | } |
| 3001 | |
| 3002 | /** |
| 3003 | * ECH - Erase # of characters in current row. |
| 3004 | */ |
| 3005 | private void ech() { |
| 3006 | int i = getCsiParam(0, 1, 1, width); |
| 3007 | |
| 3008 | // Erase from here to i characters |
| 3009 | eraseLine(currentState.cursorX, currentState.cursorX + i - 1, false); |
| 3010 | } |
| 3011 | |
| 3012 | /** |
| 3013 | * IL - Insert line. |
| 3014 | */ |
| 3015 | private void il() { |
| 3016 | int i = getCsiParam(0, 1); |
| 3017 | |
| 3018 | if ((currentState.cursorY >= scrollRegionTop) |
| 3019 | && (currentState.cursorY <= scrollRegionBottom) |
| 3020 | ) { |
| 3021 | |
| 3022 | // I can get the same effect with a scroll-down |
| 3023 | scrollingRegionScrollDown(currentState.cursorY, |
| 3024 | scrollRegionBottom, i); |
| 3025 | } |
| 3026 | } |
| 3027 | |
| 3028 | /** |
| 3029 | * DCH - Delete char. |
| 3030 | */ |
| 3031 | private void dch() { |
| 3032 | int n = getCsiParam(0, 1); |
| 3033 | DisplayLine line = display.get(currentState.cursorY); |
| 3034 | Cell blank = new Cell(); |
| 3035 | for (int i = 0; i < n; i++) { |
| 3036 | line.delete(currentState.cursorX, blank); |
| 3037 | } |
| 3038 | } |
| 3039 | |
| 3040 | /** |
| 3041 | * ICH - Insert blank char at cursor. |
| 3042 | */ |
| 3043 | private void ich() { |
| 3044 | int n = getCsiParam(0, 1); |
| 3045 | DisplayLine line = display.get(currentState.cursorY); |
| 3046 | Cell blank = new Cell(); |
| 3047 | for (int i = 0; i < n; i++) { |
| 3048 | line.insert(currentState.cursorX, blank); |
| 3049 | } |
| 3050 | } |
| 3051 | |
| 3052 | /** |
| 3053 | * DL - Delete line. |
| 3054 | */ |
| 3055 | private void dl() { |
| 3056 | int i = getCsiParam(0, 1); |
| 3057 | |
| 3058 | if ((currentState.cursorY >= scrollRegionTop) |
| 3059 | && (currentState.cursorY <= scrollRegionBottom)) { |
| 3060 | |
| 3061 | // I can get the same effect with a scroll-down |
| 3062 | scrollingRegionScrollUp(currentState.cursorY, |
| 3063 | scrollRegionBottom, i); |
| 3064 | } |
| 3065 | } |
| 3066 | |
| 3067 | /** |
| 3068 | * HVP - Horizontal and vertical position. |
| 3069 | */ |
| 3070 | private void hvp() { |
| 3071 | cup(); |
| 3072 | } |
| 3073 | |
| 3074 | /** |
| 3075 | * REP - Repeat character. |
| 3076 | */ |
| 3077 | private void rep() { |
| 3078 | int n = getCsiParam(0, 1); |
| 3079 | for (int i = 0; i < n; i++) { |
| 3080 | printCharacter(repCh); |
| 3081 | } |
| 3082 | } |
| 3083 | |
| 3084 | /** |
| 3085 | * SU - Scroll up. |
| 3086 | */ |
| 3087 | private void su() { |
| 3088 | scrollingRegionScrollUp(scrollRegionTop, scrollRegionBottom, |
| 3089 | getCsiParam(0, 1, 1, height)); |
| 3090 | } |
| 3091 | |
| 3092 | /** |
| 3093 | * SD - Scroll down. |
| 3094 | */ |
| 3095 | private void sd() { |
| 3096 | scrollingRegionScrollDown(scrollRegionTop, scrollRegionBottom, |
| 3097 | getCsiParam(0, 1, 1, height)); |
| 3098 | } |
| 3099 | |
| 3100 | /** |
| 3101 | * CBT - Go back X tab stops. |
| 3102 | */ |
| 3103 | private void cbt() { |
| 3104 | int tabsToMove = getCsiParam(0, 1); |
| 3105 | int tabI; |
| 3106 | |
| 3107 | for (int i = 0; i < tabsToMove; i++) { |
| 3108 | int j = currentState.cursorX; |
| 3109 | for (tabI = 0; tabI < tabStops.size(); tabI++) { |
| 3110 | if (tabStops.get(tabI) >= currentState.cursorX) { |
| 3111 | break; |
| 3112 | } |
| 3113 | } |
| 3114 | tabI--; |
| 3115 | if (tabI <= 0) { |
| 3116 | j = 0; |
| 3117 | } else { |
| 3118 | j = tabStops.get(tabI); |
| 3119 | } |
| 3120 | cursorPosition(currentState.cursorY, j); |
| 3121 | } |
| 3122 | } |
| 3123 | |
| 3124 | /** |
| 3125 | * CHT - Advance X tab stops. |
| 3126 | */ |
| 3127 | private void cht() { |
| 3128 | int n = getCsiParam(0, 1); |
| 3129 | for (int i = 0; i < n; i++) { |
| 3130 | advanceToNextTabStop(); |
| 3131 | } |
| 3132 | } |
| 3133 | |
| 3134 | /** |
| 3135 | * SGR - Select graphics rendition. |
| 3136 | */ |
| 3137 | private void sgr() { |
| 3138 | |
| 3139 | if (csiParams.size() == 0) { |
| 3140 | currentState.attr.reset(); |
| 3141 | return; |
| 3142 | } |
| 3143 | |
| 3144 | for (Integer i: csiParams) { |
| 3145 | |
| 3146 | switch (i) { |
| 3147 | |
| 3148 | case 0: |
| 3149 | // Normal |
| 3150 | currentState.attr.reset(); |
| 3151 | break; |
| 3152 | |
| 3153 | case 1: |
| 3154 | // Bold |
| 3155 | currentState.attr.setBold(true); |
| 3156 | break; |
| 3157 | |
| 3158 | case 4: |
| 3159 | // Underline |
| 3160 | currentState.attr.setUnderline(true); |
| 3161 | break; |
| 3162 | |
| 3163 | case 5: |
| 3164 | // Blink |
| 3165 | currentState.attr.setBlink(true); |
| 3166 | break; |
| 3167 | |
| 3168 | case 7: |
| 3169 | // Reverse |
| 3170 | currentState.attr.setReverse(true); |
| 3171 | break; |
| 3172 | |
| 3173 | default: |
| 3174 | break; |
| 3175 | } |
| 3176 | |
| 3177 | if (type == DeviceType.XTERM) { |
| 3178 | |
| 3179 | switch (i) { |
| 3180 | |
| 3181 | case 8: |
| 3182 | // Invisible |
| 3183 | // TODO |
| 3184 | break; |
| 3185 | |
| 3186 | default: |
| 3187 | break; |
| 3188 | } |
| 3189 | } |
| 3190 | |
| 3191 | if ((type == DeviceType.VT220) |
| 3192 | || (type == DeviceType.XTERM)) { |
| 3193 | |
| 3194 | switch (i) { |
| 3195 | |
| 3196 | case 22: |
| 3197 | // Normal intensity |
| 3198 | currentState.attr.setBold(false); |
| 3199 | break; |
| 3200 | |
| 3201 | case 24: |
| 3202 | // No underline |
| 3203 | currentState.attr.setUnderline(false); |
| 3204 | break; |
| 3205 | |
| 3206 | case 25: |
| 3207 | // No blink |
| 3208 | currentState.attr.setBlink(false); |
| 3209 | break; |
| 3210 | |
| 3211 | case 27: |
| 3212 | // Un-reverse |
| 3213 | currentState.attr.setReverse(false); |
| 3214 | break; |
| 3215 | |
| 3216 | default: |
| 3217 | break; |
| 3218 | } |
| 3219 | } |
| 3220 | |
| 3221 | // A true VT100/102/220 does not support color, however everyone |
| 3222 | // is used to their terminal emulator supporting color so we will |
| 3223 | // unconditionally support color for all DeviceType's. |
| 3224 | |
| 3225 | switch (i) { |
| 3226 | |
| 3227 | case 30: |
| 3228 | // Set black foreground |
| 3229 | currentState.attr.setForeColor(Color.BLACK); |
| 3230 | break; |
| 3231 | case 31: |
| 3232 | // Set red foreground |
| 3233 | currentState.attr.setForeColor(Color.RED); |
| 3234 | break; |
| 3235 | case 32: |
| 3236 | // Set green foreground |
| 3237 | currentState.attr.setForeColor(Color.GREEN); |
| 3238 | break; |
| 3239 | case 33: |
| 3240 | // Set yellow foreground |
| 3241 | currentState.attr.setForeColor(Color.YELLOW); |
| 3242 | break; |
| 3243 | case 34: |
| 3244 | // Set blue foreground |
| 3245 | currentState.attr.setForeColor(Color.BLUE); |
| 3246 | break; |
| 3247 | case 35: |
| 3248 | // Set magenta foreground |
| 3249 | currentState.attr.setForeColor(Color.MAGENTA); |
| 3250 | break; |
| 3251 | case 36: |
| 3252 | // Set cyan foreground |
| 3253 | currentState.attr.setForeColor(Color.CYAN); |
| 3254 | break; |
| 3255 | case 37: |
| 3256 | // Set white foreground |
| 3257 | currentState.attr.setForeColor(Color.WHITE); |
| 3258 | break; |
| 3259 | case 38: |
| 3260 | if (type == DeviceType.XTERM) { |
| 3261 | /* |
| 3262 | * Xterm supports T.416 / ISO-8613-3 codes to select |
| 3263 | * either an indexed color or an RGB value. (It also |
| 3264 | * permits these ISO-8613-3 SGR sequences to be separated |
| 3265 | * by colons rather than semicolons.) |
| 3266 | * |
| 3267 | * We will not support any of these additional color |
| 3268 | * codes at this time: |
| 3269 | * |
| 3270 | * 1. http://invisible-island.net/ncurses/ncurses.faq.html#xterm_16MegaColors |
| 3271 | * has a detailed discussion of the current state of |
| 3272 | * RGB in various terminals, the point of which is |
| 3273 | * that none of them really do the same thing despite |
| 3274 | * all appearing to be "xterm". |
| 3275 | * |
| 3276 | * 2. As seen in |
| 3277 | * https://bugs.kde.org/show_bug.cgi?id=107487#c3, |
| 3278 | * even supporting just the "indexed mode" of these |
| 3279 | * sequences (which could align easily with existing |
| 3280 | * SGR colors) is assumed to mean full support of |
| 3281 | * 24-bit RGB. So it is all or nothing. |
| 3282 | * |
| 3283 | * Finally, these sequences break the assumptions of |
| 3284 | * standard ECMA-48 style parsers as pointed out at |
| 3285 | * https://bugs.kde.org/show_bug.cgi?id=107487#c11 . |
| 3286 | * Therefore in order to keep a clean display, we cannot |
| 3287 | * parse anything else in this sequence. |
| 3288 | */ |
| 3289 | return; |
| 3290 | } else { |
| 3291 | // Underscore on, default foreground color |
| 3292 | currentState.attr.setUnderline(true); |
| 3293 | currentState.attr.setForeColor(Color.WHITE); |
| 3294 | } |
| 3295 | break; |
| 3296 | case 39: |
| 3297 | // Underscore off, default foreground color |
| 3298 | currentState.attr.setUnderline(false); |
| 3299 | currentState.attr.setForeColor(Color.WHITE); |
| 3300 | break; |
| 3301 | case 40: |
| 3302 | // Set black background |
| 3303 | currentState.attr.setBackColor(Color.BLACK); |
| 3304 | break; |
| 3305 | case 41: |
| 3306 | // Set red background |
| 3307 | currentState.attr.setBackColor(Color.RED); |
| 3308 | break; |
| 3309 | case 42: |
| 3310 | // Set green background |
| 3311 | currentState.attr.setBackColor(Color.GREEN); |
| 3312 | break; |
| 3313 | case 43: |
| 3314 | // Set yellow background |
| 3315 | currentState.attr.setBackColor(Color.YELLOW); |
| 3316 | break; |
| 3317 | case 44: |
| 3318 | // Set blue background |
| 3319 | currentState.attr.setBackColor(Color.BLUE); |
| 3320 | break; |
| 3321 | case 45: |
| 3322 | // Set magenta background |
| 3323 | currentState.attr.setBackColor(Color.MAGENTA); |
| 3324 | break; |
| 3325 | case 46: |
| 3326 | // Set cyan background |
| 3327 | currentState.attr.setBackColor(Color.CYAN); |
| 3328 | break; |
| 3329 | case 47: |
| 3330 | // Set white background |
| 3331 | currentState.attr.setBackColor(Color.WHITE); |
| 3332 | break; |
| 3333 | case 48: |
| 3334 | if (type == DeviceType.XTERM) { |
| 3335 | /* |
| 3336 | * Xterm supports T.416 / ISO-8613-3 codes to select |
| 3337 | * either an indexed color or an RGB value. (It also |
| 3338 | * permits these ISO-8613-3 SGR sequences to be separated |
| 3339 | * by colons rather than semicolons.) |
| 3340 | * |
| 3341 | * We will not support this at this time. Also, in order |
| 3342 | * to keep a clean display, we cannot parse anything else |
| 3343 | * in this sequence. |
| 3344 | */ |
| 3345 | return; |
| 3346 | } |
| 3347 | break; |
| 3348 | case 49: |
| 3349 | // Default background |
| 3350 | currentState.attr.setBackColor(Color.BLACK); |
| 3351 | break; |
| 3352 | |
| 3353 | default: |
| 3354 | break; |
| 3355 | } |
| 3356 | } |
| 3357 | } |
| 3358 | |
| 3359 | /** |
| 3360 | * DA - Device attributes. |
| 3361 | */ |
| 3362 | private void da() { |
| 3363 | int extendedFlag = 0; |
| 3364 | int i = 0; |
| 3365 | if (collectBuffer.length() > 0) { |
| 3366 | String args = collectBuffer.substring(1); |
| 3367 | if (collectBuffer.charAt(0) == '>') { |
| 3368 | extendedFlag = 1; |
| 3369 | if (collectBuffer.length() >= 2) { |
| 3370 | i = Integer.parseInt(args.toString()); |
| 3371 | } |
| 3372 | } else if (collectBuffer.charAt(0) == '=') { |
| 3373 | extendedFlag = 2; |
| 3374 | if (collectBuffer.length() >= 2) { |
| 3375 | i = Integer.parseInt(args.toString()); |
| 3376 | } |
| 3377 | } else { |
| 3378 | // Unknown code, bail out |
| 3379 | return; |
| 3380 | } |
| 3381 | } |
| 3382 | |
| 3383 | if ((i != 0) && (i != 1)) { |
| 3384 | return; |
| 3385 | } |
| 3386 | |
| 3387 | if ((extendedFlag == 0) && (i == 0)) { |
| 3388 | // Send string directly to remote side |
| 3389 | writeRemote(deviceTypeResponse()); |
| 3390 | return; |
| 3391 | } |
| 3392 | |
| 3393 | if ((type == DeviceType.VT220) || (type == DeviceType.XTERM)) { |
| 3394 | |
| 3395 | if ((extendedFlag == 1) && (i == 0)) { |
| 3396 | /* |
| 3397 | * Request "What type of terminal are you, what is your |
| 3398 | * firmware version, and what hardware options do you have |
| 3399 | * installed?" |
| 3400 | * |
| 3401 | * Respond: "I am a VT220 (identification code of 1), my |
| 3402 | * firmware version is _____ (Pv), and I have _____ Po |
| 3403 | * options installed." |
| 3404 | * |
| 3405 | * (Same as xterm) |
| 3406 | * |
| 3407 | */ |
| 3408 | |
| 3409 | if (s8c1t == true) { |
| 3410 | writeRemote("\u009b>1;10;0c"); |
| 3411 | } else { |
| 3412 | writeRemote("\033[>1;10;0c"); |
| 3413 | } |
| 3414 | } |
| 3415 | } |
| 3416 | |
| 3417 | // VT420 and up |
| 3418 | if ((extendedFlag == 2) && (i == 0)) { |
| 3419 | |
| 3420 | /* |
| 3421 | * Request "What is your unit ID?" |
| 3422 | * |
| 3423 | * Respond: "I was manufactured at site 00 and have a unique ID |
| 3424 | * number of 123." |
| 3425 | * |
| 3426 | */ |
| 3427 | writeRemote("\033P!|00010203\033\\"); |
| 3428 | } |
| 3429 | } |
| 3430 | |
| 3431 | /** |
| 3432 | * DECSTBM - Set top and bottom margins. |
| 3433 | */ |
| 3434 | private void decstbm() { |
| 3435 | boolean decPrivateModeFlag = false; |
| 3436 | |
| 3437 | for (int i = 0; i < collectBuffer.length(); i++) { |
| 3438 | if (collectBuffer.charAt(i) == '?') { |
| 3439 | decPrivateModeFlag = true; |
| 3440 | break; |
| 3441 | } |
| 3442 | } |
| 3443 | if (decPrivateModeFlag) { |
| 3444 | // This could be restore DEC private mode values. |
| 3445 | // Ignore it. |
| 3446 | } else { |
| 3447 | // DECSTBM |
| 3448 | int top = getCsiParam(0, 1, 1, height) - 1; |
| 3449 | int bottom = getCsiParam(1, height, 1, height) - 1; |
| 3450 | |
| 3451 | if (top > bottom) { |
| 3452 | top = bottom; |
| 3453 | } |
| 3454 | scrollRegionTop = top; |
| 3455 | scrollRegionBottom = bottom; |
| 3456 | |
| 3457 | // Home cursor |
| 3458 | cursorPosition(0, 0); |
| 3459 | } |
| 3460 | } |
| 3461 | |
| 3462 | /** |
| 3463 | * DECREQTPARM - Request terminal parameters. |
| 3464 | */ |
| 3465 | private void decreqtparm() { |
| 3466 | int i = getCsiParam(0, 0); |
| 3467 | |
| 3468 | if ((i != 0) && (i != 1)) { |
| 3469 | return; |
| 3470 | } |
| 3471 | |
| 3472 | String str = ""; |
| 3473 | |
| 3474 | /* |
| 3475 | * Request terminal parameters. |
| 3476 | * |
| 3477 | * Respond with: |
| 3478 | * |
| 3479 | * Parity NONE, 8 bits, xmitspeed 38400, recvspeed 38400. |
| 3480 | * (CLoCk MULtiplier = 1, STP option flags = 0) |
| 3481 | * |
| 3482 | * (Same as xterm) |
| 3483 | */ |
| 3484 | if (((type == DeviceType.VT220) || (type == DeviceType.XTERM)) |
| 3485 | && (s8c1t == true) |
| 3486 | ) { |
| 3487 | str = String.format("\u009b%d;1;1;128;128;1;0x", i + 2); |
| 3488 | } else { |
| 3489 | str = String.format("\033[%d;1;1;128;128;1;0x", i + 2); |
| 3490 | } |
| 3491 | writeRemote(str); |
| 3492 | } |
| 3493 | |
| 3494 | /** |
| 3495 | * DECSCA - Select Character Attributes. |
| 3496 | */ |
| 3497 | private void decsca() { |
| 3498 | int i = getCsiParam(0, 0); |
| 3499 | |
| 3500 | if ((i == 0) || (i == 2)) { |
| 3501 | // Protect mode OFF |
| 3502 | currentState.attr.setProtect(false); |
| 3503 | } |
| 3504 | if (i == 1) { |
| 3505 | // Protect mode ON |
| 3506 | currentState.attr.setProtect(true); |
| 3507 | } |
| 3508 | } |
| 3509 | |
| 3510 | /** |
| 3511 | * DECSTR - Soft Terminal Reset. |
| 3512 | */ |
| 3513 | private void decstr() { |
| 3514 | // Do exactly like RIS - Reset to initial state |
| 3515 | reset(); |
| 3516 | // Do I clear screen too? I think so... |
| 3517 | eraseScreen(0, 0, height - 1, width - 1, false); |
| 3518 | cursorPosition(0, 0); |
| 3519 | } |
| 3520 | |
| 3521 | /** |
| 3522 | * DSR - Device status report. |
| 3523 | */ |
| 3524 | private void dsr() { |
| 3525 | boolean decPrivateModeFlag = false; |
| 3526 | |
| 3527 | for (int i = 0; i < collectBuffer.length(); i++) { |
| 3528 | if (collectBuffer.charAt(i) == '?') { |
| 3529 | decPrivateModeFlag = true; |
| 3530 | break; |
| 3531 | } |
| 3532 | } |
| 3533 | |
| 3534 | int i = getCsiParam(0, 0); |
| 3535 | |
| 3536 | switch (i) { |
| 3537 | |
| 3538 | case 5: |
| 3539 | // Request status report. Respond with "OK, no malfunction." |
| 3540 | |
| 3541 | // Send string directly to remote side |
| 3542 | if (((type == DeviceType.VT220) || (type == DeviceType.XTERM)) |
| 3543 | && (s8c1t == true) |
| 3544 | ) { |
| 3545 | writeRemote("\u009b0n"); |
| 3546 | } else { |
| 3547 | writeRemote("\033[0n"); |
| 3548 | } |
| 3549 | break; |
| 3550 | |
| 3551 | case 6: |
| 3552 | // Request cursor position. Respond with current position. |
| 3553 | String str = ""; |
| 3554 | if (((type == DeviceType.VT220) || (type == DeviceType.XTERM)) |
| 3555 | && (s8c1t == true) |
| 3556 | ) { |
| 3557 | str = String.format("\u009b%d;%dR", |
| 3558 | currentState.cursorY + 1, currentState.cursorX + 1); |
| 3559 | } else { |
| 3560 | str = String.format("\033[%d;%dR", |
| 3561 | currentState.cursorY + 1, currentState.cursorX + 1); |
| 3562 | } |
| 3563 | |
| 3564 | // Send string directly to remote side |
| 3565 | writeRemote(str); |
| 3566 | break; |
| 3567 | |
| 3568 | case 15: |
| 3569 | if (decPrivateModeFlag == true) { |
| 3570 | |
| 3571 | // Request printer status report. Respond with "Printer not |
| 3572 | // connected." |
| 3573 | |
| 3574 | if (((type == DeviceType.VT220) || (type == DeviceType.XTERM)) |
| 3575 | && (s8c1t == true)) { |
| 3576 | writeRemote("\u009b?13n"); |
| 3577 | } else { |
| 3578 | writeRemote("\033[?13n"); |
| 3579 | } |
| 3580 | } |
| 3581 | break; |
| 3582 | |
| 3583 | case 25: |
| 3584 | if (((type == DeviceType.VT220) || (type == DeviceType.XTERM)) |
| 3585 | && (decPrivateModeFlag == true) |
| 3586 | ) { |
| 3587 | |
| 3588 | // Request user-defined keys are locked or unlocked. Respond |
| 3589 | // with "User-defined keys are locked." |
| 3590 | |
| 3591 | if (s8c1t == true) { |
| 3592 | writeRemote("\u009b?21n"); |
| 3593 | } else { |
| 3594 | writeRemote("\033[?21n"); |
| 3595 | } |
| 3596 | } |
| 3597 | break; |
| 3598 | |
| 3599 | case 26: |
| 3600 | if (((type == DeviceType.VT220) || (type == DeviceType.XTERM)) |
| 3601 | && (decPrivateModeFlag == true) |
| 3602 | ) { |
| 3603 | |
| 3604 | // Request keyboard language. Respond with "Keyboard |
| 3605 | // language is North American." |
| 3606 | |
| 3607 | if (s8c1t == true) { |
| 3608 | writeRemote("\u009b?27;1n"); |
| 3609 | } else { |
| 3610 | writeRemote("\033[?27;1n"); |
| 3611 | } |
| 3612 | |
| 3613 | } |
| 3614 | break; |
| 3615 | |
| 3616 | default: |
| 3617 | // Some other option, ignore |
| 3618 | break; |
| 3619 | } |
| 3620 | } |
| 3621 | |
| 3622 | /** |
| 3623 | * TBC - Tabulation clear. |
| 3624 | */ |
| 3625 | private void tbc() { |
| 3626 | int i = getCsiParam(0, 0); |
| 3627 | if (i == 0) { |
| 3628 | List<Integer> newStops = new ArrayList<Integer>(); |
| 3629 | for (Integer stop: tabStops) { |
| 3630 | if (stop == currentState.cursorX) { |
| 3631 | continue; |
| 3632 | } |
| 3633 | newStops.add(stop); |
| 3634 | } |
| 3635 | tabStops = newStops; |
| 3636 | } |
| 3637 | if (i == 3) { |
| 3638 | tabStops.clear(); |
| 3639 | } |
| 3640 | } |
| 3641 | |
| 3642 | /** |
| 3643 | * Erase the characters in the current line from the start column to the |
| 3644 | * end column, inclusive. |
| 3645 | * |
| 3646 | * @param start starting column to erase (between 0 and width - 1) |
| 3647 | * @param end ending column to erase (between 0 and width - 1) |
| 3648 | * @param honorProtected if true, do not erase characters with the |
| 3649 | * protected attribute set |
| 3650 | */ |
| 3651 | private void eraseLine(int start, int end, final boolean honorProtected) { |
| 3652 | |
| 3653 | if (start > end) { |
| 3654 | return; |
| 3655 | } |
| 3656 | if (end > width - 1) { |
| 3657 | end = width - 1; |
| 3658 | } |
| 3659 | if (start < 0) { |
| 3660 | start = 0; |
| 3661 | } |
| 3662 | |
| 3663 | for (int i = start; i <= end; i++) { |
| 3664 | DisplayLine line = display.get(currentState.cursorY); |
| 3665 | if ((!honorProtected) |
| 3666 | || ((honorProtected) && (!line.charAt(i).isProtect()))) { |
| 3667 | |
| 3668 | switch (type) { |
| 3669 | case VT100: |
| 3670 | case VT102: |
| 3671 | case VT220: |
| 3672 | /* |
| 3673 | * From the VT102 manual: |
| 3674 | * |
| 3675 | * Erasing a character also erases any character |
| 3676 | * attribute of the character. |
| 3677 | */ |
| 3678 | line.setBlank(i); |
| 3679 | break; |
| 3680 | case XTERM: |
| 3681 | /* |
| 3682 | * Erase with the current color a.k.a. back-color erase |
| 3683 | * (bce). |
| 3684 | */ |
| 3685 | line.setChar(i, ' '); |
| 3686 | line.setAttr(i, currentState.attr); |
| 3687 | break; |
| 3688 | } |
| 3689 | } |
| 3690 | } |
| 3691 | } |
| 3692 | |
| 3693 | /** |
| 3694 | * Erase a rectangular section of the screen, inclusive. end column, |
| 3695 | * inclusive. |
| 3696 | * |
| 3697 | * @param startRow starting row to erase (between 0 and height - 1) |
| 3698 | * @param startCol starting column to erase (between 0 and width - 1) |
| 3699 | * @param endRow ending row to erase (between 0 and height - 1) |
| 3700 | * @param endCol ending column to erase (between 0 and width - 1) |
| 3701 | * @param honorProtected if true, do not erase characters with the |
| 3702 | * protected attribute set |
| 3703 | */ |
| 3704 | private void eraseScreen(final int startRow, final int startCol, |
| 3705 | final int endRow, final int endCol, final boolean honorProtected) { |
| 3706 | |
| 3707 | int oldCursorY; |
| 3708 | |
| 3709 | if ((startRow < 0) |
| 3710 | || (startCol < 0) |
| 3711 | || (endRow < 0) |
| 3712 | || (endCol < 0) |
| 3713 | || (endRow < startRow) |
| 3714 | || (endCol < startCol) |
| 3715 | ) { |
| 3716 | return; |
| 3717 | } |
| 3718 | |
| 3719 | oldCursorY = currentState.cursorY; |
| 3720 | for (int i = startRow; i <= endRow; i++) { |
| 3721 | currentState.cursorY = i; |
| 3722 | eraseLine(startCol, endCol, honorProtected); |
| 3723 | |
| 3724 | // Erase display clears the double attributes |
| 3725 | display.get(i).setDoubleWidth(false); |
| 3726 | display.get(i).setDoubleHeight(0); |
| 3727 | } |
| 3728 | currentState.cursorY = oldCursorY; |
| 3729 | } |
| 3730 | |
| 3731 | /** |
| 3732 | * VT220 printer functions. All of these are parsed, but won't do |
| 3733 | * anything. |
| 3734 | */ |
| 3735 | private void printerFunctions() { |
| 3736 | boolean decPrivateModeFlag = false; |
| 3737 | for (int i = 0; i < collectBuffer.length(); i++) { |
| 3738 | if (collectBuffer.charAt(i) == '?') { |
| 3739 | decPrivateModeFlag = true; |
| 3740 | break; |
| 3741 | } |
| 3742 | } |
| 3743 | |
| 3744 | int i = getCsiParam(0, 0); |
| 3745 | |
| 3746 | switch (i) { |
| 3747 | |
| 3748 | case 0: |
| 3749 | if (decPrivateModeFlag == false) { |
| 3750 | // Print screen |
| 3751 | } |
| 3752 | break; |
| 3753 | |
| 3754 | case 1: |
| 3755 | if (decPrivateModeFlag == true) { |
| 3756 | // Print cursor line |
| 3757 | } |
| 3758 | break; |
| 3759 | |
| 3760 | case 4: |
| 3761 | if (decPrivateModeFlag == true) { |
| 3762 | // Auto print mode OFF |
| 3763 | } else { |
| 3764 | // Printer controller OFF |
| 3765 | |
| 3766 | // Characters re-appear on the screen |
| 3767 | printerControllerMode = false; |
| 3768 | } |
| 3769 | break; |
| 3770 | |
| 3771 | case 5: |
| 3772 | if (decPrivateModeFlag == true) { |
| 3773 | // Auto print mode |
| 3774 | |
| 3775 | } else { |
| 3776 | // Printer controller |
| 3777 | |
| 3778 | // Characters get sucked into oblivion |
| 3779 | printerControllerMode = true; |
| 3780 | } |
| 3781 | break; |
| 3782 | |
| 3783 | default: |
| 3784 | break; |
| 3785 | |
| 3786 | } |
| 3787 | } |
| 3788 | |
| 3789 | /** |
| 3790 | * Handle the SCAN_OSC_STRING state. Handle this in VT100 because lots |
| 3791 | * of remote systems will send an XTerm title sequence even if TERM isn't |
| 3792 | * xterm. |
| 3793 | * |
| 3794 | * @param xtermChar the character received from the remote side |
| 3795 | */ |
| 3796 | private void oscPut(final char xtermChar) { |
| 3797 | // Collect first |
| 3798 | collectBuffer.append(xtermChar); |
| 3799 | |
| 3800 | // Xterm cases... |
| 3801 | if (xtermChar == 0x07) { |
| 3802 | String args = collectBuffer.substring(0, |
| 3803 | collectBuffer.length() - 1); |
| 3804 | String [] p = args.toString().split(";"); |
| 3805 | if (p.length > 0) { |
| 3806 | if ((p[0].equals("0")) || (p[0].equals("2"))) { |
| 3807 | if (p.length > 1) { |
| 3808 | // Screen title |
| 3809 | screenTitle = p[1]; |
| 3810 | } |
| 3811 | } |
| 3812 | } |
| 3813 | |
| 3814 | // Go to SCAN_GROUND state |
| 3815 | toGround(); |
| 3816 | return; |
| 3817 | } |
| 3818 | } |
| 3819 | |
| 3820 | /** |
| 3821 | * Run this input character through the ECMA48 state machine. |
| 3822 | * |
| 3823 | * @param ch character from the remote side |
| 3824 | */ |
| 3825 | private void consume(char ch) { |
| 3826 | |
| 3827 | // DEBUG |
| 3828 | // System.err.printf("%c", ch); |
| 3829 | |
| 3830 | // Special case for VT10x: 7-bit characters only |
| 3831 | if ((type == DeviceType.VT100) || (type == DeviceType.VT102)) { |
| 3832 | ch = (char)(ch & 0x7F); |
| 3833 | } |
| 3834 | |
| 3835 | // Special "anywhere" states |
| 3836 | |
| 3837 | // 18, 1A --> execute, then switch to SCAN_GROUND |
| 3838 | if ((ch == 0x18) || (ch == 0x1A)) { |
| 3839 | // CAN and SUB abort escape sequences |
| 3840 | toGround(); |
| 3841 | return; |
| 3842 | } |
| 3843 | |
| 3844 | // 80-8F, 91-97, 99, 9A, 9C --> execute, then switch to SCAN_GROUND |
| 3845 | |
| 3846 | // 0x1B == ESCAPE |
| 3847 | if ((ch == 0x1B) |
| 3848 | && (scanState != ScanState.DCS_ENTRY) |
| 3849 | && (scanState != ScanState.DCS_INTERMEDIATE) |
| 3850 | && (scanState != ScanState.DCS_IGNORE) |
| 3851 | && (scanState != ScanState.DCS_PARAM) |
| 3852 | && (scanState != ScanState.DCS_PASSTHROUGH) |
| 3853 | ) { |
| 3854 | |
| 3855 | scanState = ScanState.ESCAPE; |
| 3856 | return; |
| 3857 | } |
| 3858 | |
| 3859 | // 0x9B == CSI 8-bit sequence |
| 3860 | if (ch == 0x9B) { |
| 3861 | scanState = ScanState.CSI_ENTRY; |
| 3862 | return; |
| 3863 | } |
| 3864 | |
| 3865 | // 0x9D goes to ScanState.OSC_STRING |
| 3866 | if (ch == 0x9D) { |
| 3867 | scanState = ScanState.OSC_STRING; |
| 3868 | return; |
| 3869 | } |
| 3870 | |
| 3871 | // 0x90 goes to DCS_ENTRY |
| 3872 | if (ch == 0x90) { |
| 3873 | scanState = ScanState.DCS_ENTRY; |
| 3874 | return; |
| 3875 | } |
| 3876 | |
| 3877 | // 0x98, 0x9E, and 0x9F go to SOSPMAPC_STRING |
| 3878 | if ((ch == 0x98) || (ch == 0x9E) || (ch == 0x9F)) { |
| 3879 | scanState = ScanState.SOSPMAPC_STRING; |
| 3880 | return; |
| 3881 | } |
| 3882 | |
| 3883 | // 0x7F (DEL) is always discarded |
| 3884 | if (ch == 0x7F) { |
| 3885 | return; |
| 3886 | } |
| 3887 | |
| 3888 | switch (scanState) { |
| 3889 | |
| 3890 | case GROUND: |
| 3891 | // 00-17, 19, 1C-1F --> execute |
| 3892 | // 80-8F, 91-9A, 9C --> execute |
| 3893 | if ((ch <= 0x1F) || ((ch >= 0x80) && (ch <= 0x9F))) { |
| 3894 | handleControlChar(ch); |
| 3895 | } |
| 3896 | |
| 3897 | // 20-7F --> print |
| 3898 | if (((ch >= 0x20) && (ch <= 0x7F)) |
| 3899 | || (ch >= 0xA0) |
| 3900 | ) { |
| 3901 | |
| 3902 | // VT220 printer --> trash bin |
| 3903 | if (((type == DeviceType.VT220) |
| 3904 | || (type == DeviceType.XTERM)) |
| 3905 | && (printerControllerMode == true) |
| 3906 | ) { |
| 3907 | return; |
| 3908 | } |
| 3909 | |
| 3910 | // Hang onto this character |
| 3911 | repCh = mapCharacter(ch); |
| 3912 | |
| 3913 | // Print this character |
| 3914 | printCharacter(repCh); |
| 3915 | } |
| 3916 | return; |
| 3917 | |
| 3918 | case ESCAPE: |
| 3919 | // 00-17, 19, 1C-1F --> execute |
| 3920 | if (ch <= 0x1F) { |
| 3921 | handleControlChar(ch); |
| 3922 | return; |
| 3923 | } |
| 3924 | |
| 3925 | // 20-2F --> collect, then switch to ESCAPE_INTERMEDIATE |
| 3926 | if ((ch >= 0x20) && (ch <= 0x2F)) { |
| 3927 | collect(ch); |
| 3928 | scanState = ScanState.ESCAPE_INTERMEDIATE; |
| 3929 | return; |
| 3930 | } |
| 3931 | |
| 3932 | // 30-4F, 51-57, 59, 5A, 5C, 60-7E --> dispatch, then switch to GROUND |
| 3933 | if ((ch >= 0x30) && (ch <= 0x4F)) { |
| 3934 | switch (ch) { |
| 3935 | case '0': |
| 3936 | case '1': |
| 3937 | case '2': |
| 3938 | case '3': |
| 3939 | case '4': |
| 3940 | case '5': |
| 3941 | case '6': |
| 3942 | break; |
| 3943 | case '7': |
| 3944 | // DECSC - Save cursor |
| 3945 | // Note this code overlaps both ANSI and VT52 mode |
| 3946 | decsc(); |
| 3947 | break; |
| 3948 | |
| 3949 | case '8': |
| 3950 | // DECRC - Restore cursor |
| 3951 | // Note this code overlaps both ANSI and VT52 mode |
| 3952 | decrc(); |
| 3953 | break; |
| 3954 | |
| 3955 | case '9': |
| 3956 | case ':': |
| 3957 | case ';': |
| 3958 | break; |
| 3959 | case '<': |
| 3960 | if (vt52Mode == true) { |
| 3961 | // DECANM - Enter ANSI mode |
| 3962 | vt52Mode = false; |
| 3963 | arrowKeyMode = ArrowKeyMode.VT100; |
| 3964 | |
| 3965 | /* |
| 3966 | * From the VT102 docs: "You use ANSI mode to select |
| 3967 | * most terminal features; the terminal uses the same |
| 3968 | * features when it switches to VT52 mode. You |
| 3969 | * cannot, however, change most of these features in |
| 3970 | * VT52 mode." |
| 3971 | * |
| 3972 | * In other words, do not reset any other attributes |
| 3973 | * when switching between VT52 submode and ANSI. |
| 3974 | */ |
| 3975 | |
| 3976 | // Reset fonts |
| 3977 | currentState.g0Charset = CharacterSet.US; |
| 3978 | currentState.g1Charset = CharacterSet.DRAWING; |
| 3979 | s8c1t = false; |
| 3980 | singleshift = Singleshift.NONE; |
| 3981 | currentState.glLockshift = LockshiftMode.NONE; |
| 3982 | currentState.grLockshift = LockshiftMode.NONE; |
| 3983 | } |
| 3984 | break; |
| 3985 | case '=': |
| 3986 | // DECKPAM - Keypad application mode |
| 3987 | // Note this code overlaps both ANSI and VT52 mode |
| 3988 | deckpam(); |
| 3989 | break; |
| 3990 | case '>': |
| 3991 | // DECKPNM - Keypad numeric mode |
| 3992 | // Note this code overlaps both ANSI and VT52 mode |
| 3993 | deckpnm(); |
| 3994 | break; |
| 3995 | case '?': |
| 3996 | case '@': |
| 3997 | break; |
| 3998 | case 'A': |
| 3999 | if (vt52Mode == true) { |
| 4000 | // Cursor up, and stop at the top without scrolling |
| 4001 | cursorUp(1, false); |
| 4002 | } |
| 4003 | break; |
| 4004 | case 'B': |
| 4005 | if (vt52Mode == true) { |
| 4006 | // Cursor down, and stop at the bottom without scrolling |
| 4007 | cursorDown(1, false); |
| 4008 | } |
| 4009 | break; |
| 4010 | case 'C': |
| 4011 | if (vt52Mode == true) { |
| 4012 | // Cursor right, and stop at the right without scrolling |
| 4013 | cursorRight(1, false); |
| 4014 | } |
| 4015 | break; |
| 4016 | case 'D': |
| 4017 | if (vt52Mode == true) { |
| 4018 | // Cursor left, and stop at the left without scrolling |
| 4019 | cursorLeft(1, false); |
| 4020 | } else { |
| 4021 | // IND - Index |
| 4022 | ind(); |
| 4023 | } |
| 4024 | break; |
| 4025 | case 'E': |
| 4026 | if (vt52Mode == true) { |
| 4027 | // Nothing |
| 4028 | } else { |
| 4029 | // NEL - Next line |
| 4030 | nel(); |
| 4031 | } |
| 4032 | break; |
| 4033 | case 'F': |
| 4034 | if (vt52Mode == true) { |
| 4035 | // G0 --> Special graphics |
| 4036 | currentState.g0Charset = CharacterSet.VT52_GRAPHICS; |
| 4037 | } |
| 4038 | break; |
| 4039 | case 'G': |
| 4040 | if (vt52Mode == true) { |
| 4041 | // G0 --> ASCII set |
| 4042 | currentState.g0Charset = CharacterSet.US; |
| 4043 | } |
| 4044 | break; |
| 4045 | case 'H': |
| 4046 | if (vt52Mode == true) { |
| 4047 | // Cursor to home |
| 4048 | cursorPosition(0, 0); |
| 4049 | } else { |
| 4050 | // HTS - Horizontal tabulation set |
| 4051 | hts(); |
| 4052 | } |
| 4053 | break; |
| 4054 | case 'I': |
| 4055 | if (vt52Mode == true) { |
| 4056 | // Reverse line feed. Same as RI. |
| 4057 | ri(); |
| 4058 | } |
| 4059 | break; |
| 4060 | case 'J': |
| 4061 | if (vt52Mode == true) { |
| 4062 | // Erase to end of screen |
| 4063 | eraseLine(currentState.cursorX, width - 1, false); |
| 4064 | eraseScreen(currentState.cursorY + 1, 0, height - 1, |
| 4065 | width - 1, false); |
| 4066 | } |
| 4067 | break; |
| 4068 | case 'K': |
| 4069 | if (vt52Mode == true) { |
| 4070 | // Erase to end of line |
| 4071 | eraseLine(currentState.cursorX, width - 1, false); |
| 4072 | } |
| 4073 | break; |
| 4074 | case 'L': |
| 4075 | break; |
| 4076 | case 'M': |
| 4077 | if (vt52Mode == true) { |
| 4078 | // Nothing |
| 4079 | } else { |
| 4080 | // RI - Reverse index |
| 4081 | ri(); |
| 4082 | } |
| 4083 | break; |
| 4084 | case 'N': |
| 4085 | if (vt52Mode == false) { |
| 4086 | // SS2 |
| 4087 | singleshift = Singleshift.SS2; |
| 4088 | } |
| 4089 | break; |
| 4090 | case 'O': |
| 4091 | if (vt52Mode == false) { |
| 4092 | // SS3 |
| 4093 | singleshift = Singleshift.SS3; |
| 4094 | } |
| 4095 | break; |
| 4096 | } |
| 4097 | toGround(); |
| 4098 | return; |
| 4099 | } |
| 4100 | if ((ch >= 0x51) && (ch <= 0x57)) { |
| 4101 | switch (ch) { |
| 4102 | case 'Q': |
| 4103 | case 'R': |
| 4104 | case 'S': |
| 4105 | case 'T': |
| 4106 | case 'U': |
| 4107 | case 'V': |
| 4108 | case 'W': |
| 4109 | break; |
| 4110 | } |
| 4111 | toGround(); |
| 4112 | return; |
| 4113 | } |
| 4114 | if (ch == 0x59) { |
| 4115 | // 'Y' |
| 4116 | if (vt52Mode == true) { |
| 4117 | scanState = ScanState.VT52_DIRECT_CURSOR_ADDRESS; |
| 4118 | } else { |
| 4119 | toGround(); |
| 4120 | } |
| 4121 | return; |
| 4122 | } |
| 4123 | if (ch == 0x5A) { |
| 4124 | // 'Z' |
| 4125 | if (vt52Mode == true) { |
| 4126 | // Identify |
| 4127 | // Send string directly to remote side |
| 4128 | writeRemote("\033/Z"); |
| 4129 | } else { |
| 4130 | // DECID |
| 4131 | // Send string directly to remote side |
| 4132 | writeRemote(deviceTypeResponse()); |
| 4133 | } |
| 4134 | toGround(); |
| 4135 | return; |
| 4136 | } |
| 4137 | if (ch == 0x5C) { |
| 4138 | // '\' |
| 4139 | toGround(); |
| 4140 | return; |
| 4141 | } |
| 4142 | |
| 4143 | // VT52 cannot get to any of these other states |
| 4144 | if (vt52Mode == true) { |
| 4145 | toGround(); |
| 4146 | return; |
| 4147 | } |
| 4148 | |
| 4149 | if ((ch >= 0x60) && (ch <= 0x7E)) { |
| 4150 | switch (ch) { |
| 4151 | case '`': |
| 4152 | case 'a': |
| 4153 | case 'b': |
| 4154 | break; |
| 4155 | case 'c': |
| 4156 | // RIS - Reset to initial state |
| 4157 | reset(); |
| 4158 | // Do I clear screen too? I think so... |
| 4159 | eraseScreen(0, 0, height - 1, width - 1, false); |
| 4160 | cursorPosition(0, 0); |
| 4161 | break; |
| 4162 | case 'd': |
| 4163 | case 'e': |
| 4164 | case 'f': |
| 4165 | case 'g': |
| 4166 | case 'h': |
| 4167 | case 'i': |
| 4168 | case 'j': |
| 4169 | case 'k': |
| 4170 | case 'l': |
| 4171 | case 'm': |
| 4172 | break; |
| 4173 | case 'n': |
| 4174 | if ((type == DeviceType.VT220) |
| 4175 | || (type == DeviceType.XTERM)) { |
| 4176 | |
| 4177 | // VT220 lockshift G2 into GL |
| 4178 | currentState.glLockshift = LockshiftMode.G2_GL; |
| 4179 | shiftOut = false; |
| 4180 | } |
| 4181 | break; |
| 4182 | case 'o': |
| 4183 | if ((type == DeviceType.VT220) |
| 4184 | || (type == DeviceType.XTERM)) { |
| 4185 | |
| 4186 | // VT220 lockshift G3 into GL |
| 4187 | currentState.glLockshift = LockshiftMode.G3_GL; |
| 4188 | shiftOut = false; |
| 4189 | } |
| 4190 | break; |
| 4191 | case 'p': |
| 4192 | case 'q': |
| 4193 | case 'r': |
| 4194 | case 's': |
| 4195 | case 't': |
| 4196 | case 'u': |
| 4197 | case 'v': |
| 4198 | case 'w': |
| 4199 | case 'x': |
| 4200 | case 'y': |
| 4201 | case 'z': |
| 4202 | case '{': |
| 4203 | break; |
| 4204 | case '|': |
| 4205 | if ((type == DeviceType.VT220) |
| 4206 | || (type == DeviceType.XTERM)) { |
| 4207 | |
| 4208 | // VT220 lockshift G3 into GR |
| 4209 | currentState.grLockshift = LockshiftMode.G3_GR; |
| 4210 | shiftOut = false; |
| 4211 | } |
| 4212 | break; |
| 4213 | case '}': |
| 4214 | if ((type == DeviceType.VT220) |
| 4215 | || (type == DeviceType.XTERM)) { |
| 4216 | |
| 4217 | // VT220 lockshift G2 into GR |
| 4218 | currentState.grLockshift = LockshiftMode.G2_GR; |
| 4219 | shiftOut = false; |
| 4220 | } |
| 4221 | break; |
| 4222 | |
| 4223 | case '~': |
| 4224 | if ((type == DeviceType.VT220) |
| 4225 | || (type == DeviceType.XTERM)) { |
| 4226 | |
| 4227 | // VT220 lockshift G1 into GR |
| 4228 | currentState.grLockshift = LockshiftMode.G1_GR; |
| 4229 | shiftOut = false; |
| 4230 | } |
| 4231 | break; |
| 4232 | } |
| 4233 | toGround(); |
| 4234 | } |
| 4235 | |
| 4236 | // 7F --> ignore |
| 4237 | |
| 4238 | // 0x5B goes to CSI_ENTRY |
| 4239 | if (ch == 0x5B) { |
| 4240 | scanState = ScanState.CSI_ENTRY; |
| 4241 | } |
| 4242 | |
| 4243 | // 0x5D goes to OSC_STRING |
| 4244 | if (ch == 0x5D) { |
| 4245 | scanState = ScanState.OSC_STRING; |
| 4246 | } |
| 4247 | |
| 4248 | // 0x50 goes to DCS_ENTRY |
| 4249 | if (ch == 0x50) { |
| 4250 | scanState = ScanState.DCS_ENTRY; |
| 4251 | } |
| 4252 | |
| 4253 | // 0x58, 0x5E, and 0x5F go to SOSPMAPC_STRING |
| 4254 | if ((ch == 0x58) || (ch == 0x5E) || (ch == 0x5F)) { |
| 4255 | scanState = ScanState.SOSPMAPC_STRING; |
| 4256 | } |
| 4257 | |
| 4258 | return; |
| 4259 | |
| 4260 | case ESCAPE_INTERMEDIATE: |
| 4261 | // 00-17, 19, 1C-1F --> execute |
| 4262 | if (ch <= 0x1F) { |
| 4263 | handleControlChar(ch); |
| 4264 | } |
| 4265 | |
| 4266 | // 20-2F --> collect |
| 4267 | if ((ch >= 0x20) && (ch <= 0x2F)) { |
| 4268 | collect(ch); |
| 4269 | } |
| 4270 | |
| 4271 | // 30-7E --> dispatch, then switch to GROUND |
| 4272 | if ((ch >= 0x30) && (ch <= 0x7E)) { |
| 4273 | switch (ch) { |
| 4274 | case '0': |
| 4275 | if ((collectBuffer.length() == 1) |
| 4276 | && (collectBuffer.charAt(0) == '(')) { |
| 4277 | // G0 --> Special graphics |
| 4278 | currentState.g0Charset = CharacterSet.DRAWING; |
| 4279 | } |
| 4280 | if ((collectBuffer.length() == 1) |
| 4281 | && (collectBuffer.charAt(0) == ')')) { |
| 4282 | // G1 --> Special graphics |
| 4283 | currentState.g1Charset = CharacterSet.DRAWING; |
| 4284 | } |
| 4285 | if ((type == DeviceType.VT220) |
| 4286 | || (type == DeviceType.XTERM)) { |
| 4287 | |
| 4288 | if ((collectBuffer.length() == 1) |
| 4289 | && (collectBuffer.charAt(0) == '*')) { |
| 4290 | // G2 --> Special graphics |
| 4291 | currentState.g2Charset = CharacterSet.DRAWING; |
| 4292 | } |
| 4293 | if ((collectBuffer.length() == 1) |
| 4294 | && (collectBuffer.charAt(0) == '+')) { |
| 4295 | // G3 --> Special graphics |
| 4296 | currentState.g3Charset = CharacterSet.DRAWING; |
| 4297 | } |
| 4298 | } |
| 4299 | break; |
| 4300 | case '1': |
| 4301 | if ((collectBuffer.length() == 1) |
| 4302 | && (collectBuffer.charAt(0) == '(')) { |
| 4303 | // G0 --> Alternate character ROM standard character set |
| 4304 | currentState.g0Charset = CharacterSet.ROM; |
| 4305 | } |
| 4306 | if ((collectBuffer.length() == 1) |
| 4307 | && (collectBuffer.charAt(0) == ')')) { |
| 4308 | // G1 --> Alternate character ROM standard character set |
| 4309 | currentState.g1Charset = CharacterSet.ROM; |
| 4310 | } |
| 4311 | break; |
| 4312 | case '2': |
| 4313 | if ((collectBuffer.length() == 1) |
| 4314 | && (collectBuffer.charAt(0) == '(')) { |
| 4315 | // G0 --> Alternate character ROM special graphics |
| 4316 | currentState.g0Charset = CharacterSet.ROM_SPECIAL; |
| 4317 | } |
| 4318 | if ((collectBuffer.length() == 1) |
| 4319 | && (collectBuffer.charAt(0) == ')')) { |
| 4320 | // G1 --> Alternate character ROM special graphics |
| 4321 | currentState.g1Charset = CharacterSet.ROM_SPECIAL; |
| 4322 | } |
| 4323 | break; |
| 4324 | case '3': |
| 4325 | if ((collectBuffer.length() == 1) |
| 4326 | && (collectBuffer.charAt(0) == '#')) { |
| 4327 | // DECDHL - Double-height line (top half) |
| 4328 | dechdl(true); |
| 4329 | } |
| 4330 | break; |
| 4331 | case '4': |
| 4332 | if ((collectBuffer.length() == 1) |
| 4333 | && (collectBuffer.charAt(0) == '#')) { |
| 4334 | // DECDHL - Double-height line (bottom half) |
| 4335 | dechdl(false); |
| 4336 | } |
| 4337 | if ((type == DeviceType.VT220) |
| 4338 | || (type == DeviceType.XTERM)) { |
| 4339 | |
| 4340 | if ((collectBuffer.length() == 1) |
| 4341 | && (collectBuffer.charAt(0) == '(')) { |
| 4342 | // G0 --> DUTCH |
| 4343 | currentState.g0Charset = CharacterSet.NRC_DUTCH; |
| 4344 | } |
| 4345 | if ((collectBuffer.length() == 1) |
| 4346 | && (collectBuffer.charAt(0) == ')')) { |
| 4347 | // G1 --> DUTCH |
| 4348 | currentState.g1Charset = CharacterSet.NRC_DUTCH; |
| 4349 | } |
| 4350 | if ((collectBuffer.length() == 1) |
| 4351 | && (collectBuffer.charAt(0) == '*')) { |
| 4352 | // G2 --> DUTCH |
| 4353 | currentState.g2Charset = CharacterSet.NRC_DUTCH; |
| 4354 | } |
| 4355 | if ((collectBuffer.length() == 1) |
| 4356 | && (collectBuffer.charAt(0) == '+')) { |
| 4357 | // G3 --> DUTCH |
| 4358 | currentState.g3Charset = CharacterSet.NRC_DUTCH; |
| 4359 | } |
| 4360 | } |
| 4361 | break; |
| 4362 | case '5': |
| 4363 | if ((collectBuffer.length() == 1) |
| 4364 | && (collectBuffer.charAt(0) == '#')) { |
| 4365 | // DECSWL - Single-width line |
| 4366 | decswl(); |
| 4367 | } |
| 4368 | if ((type == DeviceType.VT220) |
| 4369 | || (type == DeviceType.XTERM)) { |
| 4370 | |
| 4371 | if ((collectBuffer.length() == 1) |
| 4372 | && (collectBuffer.charAt(0) == '(')) { |
| 4373 | // G0 --> FINNISH |
| 4374 | currentState.g0Charset = CharacterSet.NRC_FINNISH; |
| 4375 | } |
| 4376 | if ((collectBuffer.length() == 1) |
| 4377 | && (collectBuffer.charAt(0) == ')')) { |
| 4378 | // G1 --> FINNISH |
| 4379 | currentState.g1Charset = CharacterSet.NRC_FINNISH; |
| 4380 | } |
| 4381 | if ((collectBuffer.length() == 1) |
| 4382 | && (collectBuffer.charAt(0) == '*')) { |
| 4383 | // G2 --> FINNISH |
| 4384 | currentState.g2Charset = CharacterSet.NRC_FINNISH; |
| 4385 | } |
| 4386 | if ((collectBuffer.length() == 1) |
| 4387 | && (collectBuffer.charAt(0) == '+')) { |
| 4388 | // G3 --> FINNISH |
| 4389 | currentState.g3Charset = CharacterSet.NRC_FINNISH; |
| 4390 | } |
| 4391 | } |
| 4392 | break; |
| 4393 | case '6': |
| 4394 | if ((collectBuffer.length() == 1) |
| 4395 | && (collectBuffer.charAt(0) == '#')) { |
| 4396 | // DECDWL - Double-width line |
| 4397 | decdwl(); |
| 4398 | } |
| 4399 | if ((type == DeviceType.VT220) |
| 4400 | || (type == DeviceType.XTERM)) { |
| 4401 | |
| 4402 | if ((collectBuffer.length() == 1) |
| 4403 | && (collectBuffer.charAt(0) == '(')) { |
| 4404 | // G0 --> NORWEGIAN |
| 4405 | currentState.g0Charset = CharacterSet.NRC_NORWEGIAN; |
| 4406 | } |
| 4407 | if ((collectBuffer.length() == 1) |
| 4408 | && (collectBuffer.charAt(0) == ')')) { |
| 4409 | // G1 --> NORWEGIAN |
| 4410 | currentState.g1Charset = CharacterSet.NRC_NORWEGIAN; |
| 4411 | } |
| 4412 | if ((collectBuffer.length() == 1) |
| 4413 | && (collectBuffer.charAt(0) == '*')) { |
| 4414 | // G2 --> NORWEGIAN |
| 4415 | currentState.g2Charset = CharacterSet.NRC_NORWEGIAN; |
| 4416 | } |
| 4417 | if ((collectBuffer.length() == 1) |
| 4418 | && (collectBuffer.charAt(0) == '+')) { |
| 4419 | // G3 --> NORWEGIAN |
| 4420 | currentState.g3Charset = CharacterSet.NRC_NORWEGIAN; |
| 4421 | } |
| 4422 | } |
| 4423 | break; |
| 4424 | case '7': |
| 4425 | if ((type == DeviceType.VT220) |
| 4426 | || (type == DeviceType.XTERM)) { |
| 4427 | |
| 4428 | if ((collectBuffer.length() == 1) |
| 4429 | && (collectBuffer.charAt(0) == '(')) { |
| 4430 | // G0 --> SWEDISH |
| 4431 | currentState.g0Charset = CharacterSet.NRC_SWEDISH; |
| 4432 | } |
| 4433 | if ((collectBuffer.length() == 1) |
| 4434 | && (collectBuffer.charAt(0) == ')')) { |
| 4435 | // G1 --> SWEDISH |
| 4436 | currentState.g1Charset = CharacterSet.NRC_SWEDISH; |
| 4437 | } |
| 4438 | if ((collectBuffer.length() == 1) |
| 4439 | && (collectBuffer.charAt(0) == '*')) { |
| 4440 | // G2 --> SWEDISH |
| 4441 | currentState.g2Charset = CharacterSet.NRC_SWEDISH; |
| 4442 | } |
| 4443 | if ((collectBuffer.length() == 1) |
| 4444 | && (collectBuffer.charAt(0) == '+')) { |
| 4445 | // G3 --> SWEDISH |
| 4446 | currentState.g3Charset = CharacterSet.NRC_SWEDISH; |
| 4447 | } |
| 4448 | } |
| 4449 | break; |
| 4450 | case '8': |
| 4451 | if ((collectBuffer.length() == 1) |
| 4452 | && (collectBuffer.charAt(0) == '#')) { |
| 4453 | // DECALN - Screen alignment display |
| 4454 | decaln(); |
| 4455 | } |
| 4456 | break; |
| 4457 | case '9': |
| 4458 | case ':': |
| 4459 | case ';': |
| 4460 | break; |
| 4461 | case '<': |
| 4462 | if ((type == DeviceType.VT220) |
| 4463 | || (type == DeviceType.XTERM)) { |
| 4464 | |
| 4465 | if ((collectBuffer.length() == 1) |
| 4466 | && (collectBuffer.charAt(0) == '(')) { |
| 4467 | // G0 --> DEC_SUPPLEMENTAL |
| 4468 | currentState.g0Charset = CharacterSet.DEC_SUPPLEMENTAL; |
| 4469 | } |
| 4470 | if ((collectBuffer.length() == 1) |
| 4471 | && (collectBuffer.charAt(0) == ')')) { |
| 4472 | // G1 --> DEC_SUPPLEMENTAL |
| 4473 | currentState.g1Charset = CharacterSet.DEC_SUPPLEMENTAL; |
| 4474 | } |
| 4475 | if ((collectBuffer.length() == 1) |
| 4476 | && (collectBuffer.charAt(0) == '*')) { |
| 4477 | // G2 --> DEC_SUPPLEMENTAL |
| 4478 | currentState.g2Charset = CharacterSet.DEC_SUPPLEMENTAL; |
| 4479 | } |
| 4480 | if ((collectBuffer.length() == 1) |
| 4481 | && (collectBuffer.charAt(0) == '+')) { |
| 4482 | // G3 --> DEC_SUPPLEMENTAL |
| 4483 | currentState.g3Charset = CharacterSet.DEC_SUPPLEMENTAL; |
| 4484 | } |
| 4485 | } |
| 4486 | break; |
| 4487 | case '=': |
| 4488 | if ((type == DeviceType.VT220) |
| 4489 | || (type == DeviceType.XTERM)) { |
| 4490 | |
| 4491 | if ((collectBuffer.length() == 1) |
| 4492 | && (collectBuffer.charAt(0) == '(')) { |
| 4493 | // G0 --> SWISS |
| 4494 | currentState.g0Charset = CharacterSet.NRC_SWISS; |
| 4495 | } |
| 4496 | if ((collectBuffer.length() == 1) |
| 4497 | && (collectBuffer.charAt(0) == ')')) { |
| 4498 | // G1 --> SWISS |
| 4499 | currentState.g1Charset = CharacterSet.NRC_SWISS; |
| 4500 | } |
| 4501 | if ((collectBuffer.length() == 1) |
| 4502 | && (collectBuffer.charAt(0) == '*')) { |
| 4503 | // G2 --> SWISS |
| 4504 | currentState.g2Charset = CharacterSet.NRC_SWISS; |
| 4505 | } |
| 4506 | if ((collectBuffer.length() == 1) |
| 4507 | && (collectBuffer.charAt(0) == '+')) { |
| 4508 | // G3 --> SWISS |
| 4509 | currentState.g3Charset = CharacterSet.NRC_SWISS; |
| 4510 | } |
| 4511 | } |
| 4512 | break; |
| 4513 | case '>': |
| 4514 | case '?': |
| 4515 | case '@': |
| 4516 | break; |
| 4517 | case 'A': |
| 4518 | if ((collectBuffer.length() == 1) |
| 4519 | && (collectBuffer.charAt(0) == '(')) { |
| 4520 | // G0 --> United Kingdom set |
| 4521 | currentState.g0Charset = CharacterSet.UK; |
| 4522 | } |
| 4523 | if ((collectBuffer.length() == 1) |
| 4524 | && (collectBuffer.charAt(0) == ')')) { |
| 4525 | // G1 --> United Kingdom set |
| 4526 | currentState.g1Charset = CharacterSet.UK; |
| 4527 | } |
| 4528 | if ((type == DeviceType.VT220) |
| 4529 | || (type == DeviceType.XTERM)) { |
| 4530 | |
| 4531 | if ((collectBuffer.length() == 1) |
| 4532 | && (collectBuffer.charAt(0) == '*')) { |
| 4533 | // G2 --> United Kingdom set |
| 4534 | currentState.g2Charset = CharacterSet.UK; |
| 4535 | } |
| 4536 | if ((collectBuffer.length() == 1) |
| 4537 | && (collectBuffer.charAt(0) == '+')) { |
| 4538 | // G3 --> United Kingdom set |
| 4539 | currentState.g3Charset = CharacterSet.UK; |
| 4540 | } |
| 4541 | } |
| 4542 | break; |
| 4543 | case 'B': |
| 4544 | if ((collectBuffer.length() == 1) |
| 4545 | && (collectBuffer.charAt(0) == '(')) { |
| 4546 | // G0 --> ASCII set |
| 4547 | currentState.g0Charset = CharacterSet.US; |
| 4548 | } |
| 4549 | if ((collectBuffer.length() == 1) |
| 4550 | && (collectBuffer.charAt(0) == ')')) { |
| 4551 | // G1 --> ASCII set |
| 4552 | currentState.g1Charset = CharacterSet.US; |
| 4553 | } |
| 4554 | if ((type == DeviceType.VT220) |
| 4555 | || (type == DeviceType.XTERM)) { |
| 4556 | |
| 4557 | if ((collectBuffer.length() == 1) |
| 4558 | && (collectBuffer.charAt(0) == '*')) { |
| 4559 | // G2 --> ASCII |
| 4560 | currentState.g2Charset = CharacterSet.US; |
| 4561 | } |
| 4562 | if ((collectBuffer.length() == 1) |
| 4563 | && (collectBuffer.charAt(0) == '+')) { |
| 4564 | // G3 --> ASCII |
| 4565 | currentState.g3Charset = CharacterSet.US; |
| 4566 | } |
| 4567 | } |
| 4568 | break; |
| 4569 | case 'C': |
| 4570 | if ((type == DeviceType.VT220) |
| 4571 | || (type == DeviceType.XTERM)) { |
| 4572 | |
| 4573 | if ((collectBuffer.length() == 1) |
| 4574 | && (collectBuffer.charAt(0) == '(')) { |
| 4575 | // G0 --> FINNISH |
| 4576 | currentState.g0Charset = CharacterSet.NRC_FINNISH; |
| 4577 | } |
| 4578 | if ((collectBuffer.length() == 1) |
| 4579 | && (collectBuffer.charAt(0) == ')')) { |
| 4580 | // G1 --> FINNISH |
| 4581 | currentState.g1Charset = CharacterSet.NRC_FINNISH; |
| 4582 | } |
| 4583 | if ((collectBuffer.length() == 1) |
| 4584 | && (collectBuffer.charAt(0) == '*')) { |
| 4585 | // G2 --> FINNISH |
| 4586 | currentState.g2Charset = CharacterSet.NRC_FINNISH; |
| 4587 | } |
| 4588 | if ((collectBuffer.length() == 1) |
| 4589 | && (collectBuffer.charAt(0) == '+')) { |
| 4590 | // G3 --> FINNISH |
| 4591 | currentState.g3Charset = CharacterSet.NRC_FINNISH; |
| 4592 | } |
| 4593 | } |
| 4594 | break; |
| 4595 | case 'D': |
| 4596 | break; |
| 4597 | case 'E': |
| 4598 | if ((type == DeviceType.VT220) |
| 4599 | || (type == DeviceType.XTERM)) { |
| 4600 | |
| 4601 | if ((collectBuffer.length() == 1) |
| 4602 | && (collectBuffer.charAt(0) == '(')) { |
| 4603 | // G0 --> NORWEGIAN |
| 4604 | currentState.g0Charset = CharacterSet.NRC_NORWEGIAN; |
| 4605 | } |
| 4606 | if ((collectBuffer.length() == 1) |
| 4607 | && (collectBuffer.charAt(0) == ')')) { |
| 4608 | // G1 --> NORWEGIAN |
| 4609 | currentState.g1Charset = CharacterSet.NRC_NORWEGIAN; |
| 4610 | } |
| 4611 | if ((collectBuffer.length() == 1) |
| 4612 | && (collectBuffer.charAt(0) == '*')) { |
| 4613 | // G2 --> NORWEGIAN |
| 4614 | currentState.g2Charset = CharacterSet.NRC_NORWEGIAN; |
| 4615 | } |
| 4616 | if ((collectBuffer.length() == 1) |
| 4617 | && (collectBuffer.charAt(0) == '+')) { |
| 4618 | // G3 --> NORWEGIAN |
| 4619 | currentState.g3Charset = CharacterSet.NRC_NORWEGIAN; |
| 4620 | } |
| 4621 | } |
| 4622 | break; |
| 4623 | case 'F': |
| 4624 | if ((type == DeviceType.VT220) |
| 4625 | || (type == DeviceType.XTERM)) { |
| 4626 | |
| 4627 | if ((collectBuffer.length() == 1) |
| 4628 | && (collectBuffer.charAt(0) == ' ')) { |
| 4629 | // S7C1T |
| 4630 | s8c1t = false; |
| 4631 | } |
| 4632 | } |
| 4633 | break; |
| 4634 | case 'G': |
| 4635 | if ((type == DeviceType.VT220) |
| 4636 | || (type == DeviceType.XTERM)) { |
| 4637 | |
| 4638 | if ((collectBuffer.length() == 1) |
| 4639 | && (collectBuffer.charAt(0) == ' ')) { |
| 4640 | // S8C1T |
| 4641 | s8c1t = true; |
| 4642 | } |
| 4643 | } |
| 4644 | break; |
| 4645 | case 'H': |
| 4646 | if ((type == DeviceType.VT220) |
| 4647 | || (type == DeviceType.XTERM)) { |
| 4648 | |
| 4649 | if ((collectBuffer.length() == 1) |
| 4650 | && (collectBuffer.charAt(0) == '(')) { |
| 4651 | // G0 --> SWEDISH |
| 4652 | currentState.g0Charset = CharacterSet.NRC_SWEDISH; |
| 4653 | } |
| 4654 | if ((collectBuffer.length() == 1) |
| 4655 | && (collectBuffer.charAt(0) == ')')) { |
| 4656 | // G1 --> SWEDISH |
| 4657 | currentState.g1Charset = CharacterSet.NRC_SWEDISH; |
| 4658 | } |
| 4659 | if ((collectBuffer.length() == 1) |
| 4660 | && (collectBuffer.charAt(0) == '*')) { |
| 4661 | // G2 --> SWEDISH |
| 4662 | currentState.g2Charset = CharacterSet.NRC_SWEDISH; |
| 4663 | } |
| 4664 | if ((collectBuffer.length() == 1) |
| 4665 | && (collectBuffer.charAt(0) == '+')) { |
| 4666 | // G3 --> SWEDISH |
| 4667 | currentState.g3Charset = CharacterSet.NRC_SWEDISH; |
| 4668 | } |
| 4669 | } |
| 4670 | break; |
| 4671 | case 'I': |
| 4672 | case 'J': |
| 4673 | break; |
| 4674 | case 'K': |
| 4675 | if ((type == DeviceType.VT220) |
| 4676 | || (type == DeviceType.XTERM)) { |
| 4677 | |
| 4678 | if ((collectBuffer.length() == 1) |
| 4679 | && (collectBuffer.charAt(0) == '(')) { |
| 4680 | // G0 --> GERMAN |
| 4681 | currentState.g0Charset = CharacterSet.NRC_GERMAN; |
| 4682 | } |
| 4683 | if ((collectBuffer.length() == 1) |
| 4684 | && (collectBuffer.charAt(0) == ')')) { |
| 4685 | // G1 --> GERMAN |
| 4686 | currentState.g1Charset = CharacterSet.NRC_GERMAN; |
| 4687 | } |
| 4688 | if ((collectBuffer.length() == 1) |
| 4689 | && (collectBuffer.charAt(0) == '*')) { |
| 4690 | // G2 --> GERMAN |
| 4691 | currentState.g2Charset = CharacterSet.NRC_GERMAN; |
| 4692 | } |
| 4693 | if ((collectBuffer.length() == 1) |
| 4694 | && (collectBuffer.charAt(0) == '+')) { |
| 4695 | // G3 --> GERMAN |
| 4696 | currentState.g3Charset = CharacterSet.NRC_GERMAN; |
| 4697 | } |
| 4698 | } |
| 4699 | break; |
| 4700 | case 'L': |
| 4701 | case 'M': |
| 4702 | case 'N': |
| 4703 | case 'O': |
| 4704 | case 'P': |
| 4705 | break; |
| 4706 | case 'Q': |
| 4707 | if ((type == DeviceType.VT220) |
| 4708 | || (type == DeviceType.XTERM)) { |
| 4709 | |
| 4710 | if ((collectBuffer.length() == 1) |
| 4711 | && (collectBuffer.charAt(0) == '(')) { |
| 4712 | // G0 --> FRENCH_CA |
| 4713 | currentState.g0Charset = CharacterSet.NRC_FRENCH_CA; |
| 4714 | } |
| 4715 | if ((collectBuffer.length() == 1) |
| 4716 | && (collectBuffer.charAt(0) == ')')) { |
| 4717 | // G1 --> FRENCH_CA |
| 4718 | currentState.g1Charset = CharacterSet.NRC_FRENCH_CA; |
| 4719 | } |
| 4720 | if ((collectBuffer.length() == 1) |
| 4721 | && (collectBuffer.charAt(0) == '*')) { |
| 4722 | // G2 --> FRENCH_CA |
| 4723 | currentState.g2Charset = CharacterSet.NRC_FRENCH_CA; |
| 4724 | } |
| 4725 | if ((collectBuffer.length() == 1) |
| 4726 | && (collectBuffer.charAt(0) == '+')) { |
| 4727 | // G3 --> FRENCH_CA |
| 4728 | currentState.g3Charset = CharacterSet.NRC_FRENCH_CA; |
| 4729 | } |
| 4730 | } |
| 4731 | break; |
| 4732 | case 'R': |
| 4733 | if ((type == DeviceType.VT220) |
| 4734 | || (type == DeviceType.XTERM)) { |
| 4735 | |
| 4736 | if ((collectBuffer.length() == 1) |
| 4737 | && (collectBuffer.charAt(0) == '(')) { |
| 4738 | // G0 --> FRENCH |
| 4739 | currentState.g0Charset = CharacterSet.NRC_FRENCH; |
| 4740 | } |
| 4741 | if ((collectBuffer.length() == 1) |
| 4742 | && (collectBuffer.charAt(0) == ')')) { |
| 4743 | // G1 --> FRENCH |
| 4744 | currentState.g1Charset = CharacterSet.NRC_FRENCH; |
| 4745 | } |
| 4746 | if ((collectBuffer.length() == 1) |
| 4747 | && (collectBuffer.charAt(0) == '*')) { |
| 4748 | // G2 --> FRENCH |
| 4749 | currentState.g2Charset = CharacterSet.NRC_FRENCH; |
| 4750 | } |
| 4751 | if ((collectBuffer.length() == 1) |
| 4752 | && (collectBuffer.charAt(0) == '+')) { |
| 4753 | // G3 --> FRENCH |
| 4754 | currentState.g3Charset = CharacterSet.NRC_FRENCH; |
| 4755 | } |
| 4756 | } |
| 4757 | break; |
| 4758 | case 'S': |
| 4759 | case 'T': |
| 4760 | case 'U': |
| 4761 | case 'V': |
| 4762 | case 'W': |
| 4763 | case 'X': |
| 4764 | break; |
| 4765 | case 'Y': |
| 4766 | if ((type == DeviceType.VT220) |
| 4767 | || (type == DeviceType.XTERM)) { |
| 4768 | |
| 4769 | if ((collectBuffer.length() == 1) |
| 4770 | && (collectBuffer.charAt(0) == '(')) { |
| 4771 | // G0 --> ITALIAN |
| 4772 | currentState.g0Charset = CharacterSet.NRC_ITALIAN; |
| 4773 | } |
| 4774 | if ((collectBuffer.length() == 1) |
| 4775 | && (collectBuffer.charAt(0) == ')')) { |
| 4776 | // G1 --> ITALIAN |
| 4777 | currentState.g1Charset = CharacterSet.NRC_ITALIAN; |
| 4778 | } |
| 4779 | if ((collectBuffer.length() == 1) |
| 4780 | && (collectBuffer.charAt(0) == '*')) { |
| 4781 | // G2 --> ITALIAN |
| 4782 | currentState.g2Charset = CharacterSet.NRC_ITALIAN; |
| 4783 | } |
| 4784 | if ((collectBuffer.length() == 1) |
| 4785 | && (collectBuffer.charAt(0) == '+')) { |
| 4786 | // G3 --> ITALIAN |
| 4787 | currentState.g3Charset = CharacterSet.NRC_ITALIAN; |
| 4788 | } |
| 4789 | } |
| 4790 | break; |
| 4791 | case 'Z': |
| 4792 | if ((type == DeviceType.VT220) |
| 4793 | || (type == DeviceType.XTERM)) { |
| 4794 | |
| 4795 | if ((collectBuffer.length() == 1) |
| 4796 | && (collectBuffer.charAt(0) == '(')) { |
| 4797 | // G0 --> SPANISH |
| 4798 | currentState.g0Charset = CharacterSet.NRC_SPANISH; |
| 4799 | } |
| 4800 | if ((collectBuffer.length() == 1) |
| 4801 | && (collectBuffer.charAt(0) == ')')) { |
| 4802 | // G1 --> SPANISH |
| 4803 | currentState.g1Charset = CharacterSet.NRC_SPANISH; |
| 4804 | } |
| 4805 | if ((collectBuffer.length() == 1) |
| 4806 | && (collectBuffer.charAt(0) == '*')) { |
| 4807 | // G2 --> SPANISH |
| 4808 | currentState.g2Charset = CharacterSet.NRC_SPANISH; |
| 4809 | } |
| 4810 | if ((collectBuffer.length() == 1) |
| 4811 | && (collectBuffer.charAt(0) == '+')) { |
| 4812 | // G3 --> SPANISH |
| 4813 | currentState.g3Charset = CharacterSet.NRC_SPANISH; |
| 4814 | } |
| 4815 | } |
| 4816 | break; |
| 4817 | case '[': |
| 4818 | case '\\': |
| 4819 | case ']': |
| 4820 | case '^': |
| 4821 | case '_': |
| 4822 | case '`': |
| 4823 | case 'a': |
| 4824 | case 'b': |
| 4825 | case 'c': |
| 4826 | case 'd': |
| 4827 | case 'e': |
| 4828 | case 'f': |
| 4829 | case 'g': |
| 4830 | case 'h': |
| 4831 | case 'i': |
| 4832 | case 'j': |
| 4833 | case 'k': |
| 4834 | case 'l': |
| 4835 | case 'm': |
| 4836 | case 'n': |
| 4837 | case 'o': |
| 4838 | case 'p': |
| 4839 | case 'q': |
| 4840 | case 'r': |
| 4841 | case 's': |
| 4842 | case 't': |
| 4843 | case 'u': |
| 4844 | case 'v': |
| 4845 | case 'w': |
| 4846 | case 'x': |
| 4847 | case 'y': |
| 4848 | case 'z': |
| 4849 | case '{': |
| 4850 | case '|': |
| 4851 | case '}': |
| 4852 | case '~': |
| 4853 | break; |
| 4854 | } |
| 4855 | toGround(); |
| 4856 | } |
| 4857 | |
| 4858 | // 7F --> ignore |
| 4859 | |
| 4860 | // 0x9C goes to GROUND |
| 4861 | if (ch == 0x9C) { |
| 4862 | toGround(); |
| 4863 | } |
| 4864 | |
| 4865 | return; |
| 4866 | |
| 4867 | case CSI_ENTRY: |
| 4868 | // 00-17, 19, 1C-1F --> execute |
| 4869 | if (ch <= 0x1F) { |
| 4870 | handleControlChar(ch); |
| 4871 | } |
| 4872 | |
| 4873 | // 20-2F --> collect, then switch to CSI_INTERMEDIATE |
| 4874 | if ((ch >= 0x20) && (ch <= 0x2F)) { |
| 4875 | collect(ch); |
| 4876 | scanState = ScanState.CSI_INTERMEDIATE; |
| 4877 | } |
| 4878 | |
| 4879 | // 30-39, 3B --> param, then switch to CSI_PARAM |
| 4880 | if ((ch >= '0') && (ch <= '9')) { |
| 4881 | param((byte) ch); |
| 4882 | scanState = ScanState.CSI_PARAM; |
| 4883 | } |
| 4884 | if (ch == ';') { |
| 4885 | param((byte) ch); |
| 4886 | scanState = ScanState.CSI_PARAM; |
| 4887 | } |
| 4888 | |
| 4889 | // 3C-3F --> collect, then switch to CSI_PARAM |
| 4890 | if ((ch >= 0x3C) && (ch <= 0x3F)) { |
| 4891 | collect(ch); |
| 4892 | scanState = ScanState.CSI_PARAM; |
| 4893 | } |
| 4894 | |
| 4895 | // 40-7E --> dispatch, then switch to GROUND |
| 4896 | if ((ch >= 0x40) && (ch <= 0x7E)) { |
| 4897 | switch (ch) { |
| 4898 | case '@': |
| 4899 | // ICH - Insert character |
| 4900 | ich(); |
| 4901 | break; |
| 4902 | case 'A': |
| 4903 | // CUU - Cursor up |
| 4904 | cuu(); |
| 4905 | break; |
| 4906 | case 'B': |
| 4907 | // CUD - Cursor down |
| 4908 | cud(); |
| 4909 | break; |
| 4910 | case 'C': |
| 4911 | // CUF - Cursor forward |
| 4912 | cuf(); |
| 4913 | break; |
| 4914 | case 'D': |
| 4915 | // CUB - Cursor backward |
| 4916 | cub(); |
| 4917 | break; |
| 4918 | case 'E': |
| 4919 | // CNL - Cursor down and to column 1 |
| 4920 | if (type == DeviceType.XTERM) { |
| 4921 | cnl(); |
| 4922 | } |
| 4923 | break; |
| 4924 | case 'F': |
| 4925 | // CPL - Cursor up and to column 1 |
| 4926 | if (type == DeviceType.XTERM) { |
| 4927 | cpl(); |
| 4928 | } |
| 4929 | break; |
| 4930 | case 'G': |
| 4931 | // CHA - Cursor to column # in current row |
| 4932 | if (type == DeviceType.XTERM) { |
| 4933 | cha(); |
| 4934 | } |
| 4935 | break; |
| 4936 | case 'H': |
| 4937 | // CUP - Cursor position |
| 4938 | cup(); |
| 4939 | break; |
| 4940 | case 'I': |
| 4941 | // CHT - Cursor forward X tab stops (default 1) |
| 4942 | if (type == DeviceType.XTERM) { |
| 4943 | cht(); |
| 4944 | } |
| 4945 | break; |
| 4946 | case 'J': |
| 4947 | // ED - Erase in display |
| 4948 | ed(); |
| 4949 | break; |
| 4950 | case 'K': |
| 4951 | // EL - Erase in line |
| 4952 | el(); |
| 4953 | break; |
| 4954 | case 'L': |
| 4955 | // IL - Insert line |
| 4956 | il(); |
| 4957 | break; |
| 4958 | case 'M': |
| 4959 | // DL - Delete line |
| 4960 | dl(); |
| 4961 | break; |
| 4962 | case 'N': |
| 4963 | case 'O': |
| 4964 | break; |
| 4965 | case 'P': |
| 4966 | // DCH - Delete character |
| 4967 | dch(); |
| 4968 | break; |
| 4969 | case 'Q': |
| 4970 | case 'R': |
| 4971 | break; |
| 4972 | case 'S': |
| 4973 | // Scroll up X lines (default 1) |
| 4974 | if (type == DeviceType.XTERM) { |
| 4975 | su(); |
| 4976 | } |
| 4977 | break; |
| 4978 | case 'T': |
| 4979 | // Scroll down X lines (default 1) |
| 4980 | if (type == DeviceType.XTERM) { |
| 4981 | sd(); |
| 4982 | } |
| 4983 | break; |
| 4984 | case 'U': |
| 4985 | case 'V': |
| 4986 | case 'W': |
| 4987 | break; |
| 4988 | case 'X': |
| 4989 | if ((type == DeviceType.VT220) |
| 4990 | || (type == DeviceType.XTERM)) { |
| 4991 | |
| 4992 | // ECH - Erase character |
| 4993 | ech(); |
| 4994 | } |
| 4995 | break; |
| 4996 | case 'Y': |
| 4997 | break; |
| 4998 | case 'Z': |
| 4999 | // CBT - Cursor backward X tab stops (default 1) |
| 5000 | if (type == DeviceType.XTERM) { |
| 5001 | cbt(); |
| 5002 | } |
| 5003 | break; |
| 5004 | case '[': |
| 5005 | case '\\': |
| 5006 | case ']': |
| 5007 | case '^': |
| 5008 | case '_': |
| 5009 | break; |
| 5010 | case '`': |
| 5011 | // HPA - Cursor to column # in current row. Same as CHA |
| 5012 | if (type == DeviceType.XTERM) { |
| 5013 | cha(); |
| 5014 | } |
| 5015 | break; |
| 5016 | case 'a': |
| 5017 | // HPR - Cursor right. Same as CUF |
| 5018 | if (type == DeviceType.XTERM) { |
| 5019 | cuf(); |
| 5020 | } |
| 5021 | break; |
| 5022 | case 'b': |
| 5023 | // REP - Repeat last char X times |
| 5024 | if (type == DeviceType.XTERM) { |
| 5025 | rep(); |
| 5026 | } |
| 5027 | break; |
| 5028 | case 'c': |
| 5029 | // DA - Device attributes |
| 5030 | da(); |
| 5031 | break; |
| 5032 | case 'd': |
| 5033 | // VPA - Cursor to row, current column. |
| 5034 | if (type == DeviceType.XTERM) { |
| 5035 | vpa(); |
| 5036 | } |
| 5037 | break; |
| 5038 | case 'e': |
| 5039 | // VPR - Cursor down. Same as CUD |
| 5040 | if (type == DeviceType.XTERM) { |
| 5041 | cud(); |
| 5042 | } |
| 5043 | break; |
| 5044 | case 'f': |
| 5045 | // HVP - Horizontal and vertical position |
| 5046 | hvp(); |
| 5047 | break; |
| 5048 | case 'g': |
| 5049 | // TBC - Tabulation clear |
| 5050 | tbc(); |
| 5051 | break; |
| 5052 | case 'h': |
| 5053 | // Sets an ANSI or DEC private toggle |
| 5054 | setToggle(true); |
| 5055 | break; |
| 5056 | case 'i': |
| 5057 | if ((type == DeviceType.VT220) |
| 5058 | || (type == DeviceType.XTERM)) { |
| 5059 | |
| 5060 | // Printer functions |
| 5061 | printerFunctions(); |
| 5062 | } |
| 5063 | break; |
| 5064 | case 'j': |
| 5065 | case 'k': |
| 5066 | break; |
| 5067 | case 'l': |
| 5068 | // Sets an ANSI or DEC private toggle |
| 5069 | setToggle(false); |
| 5070 | break; |
| 5071 | case 'm': |
| 5072 | // SGR - Select graphics rendition |
| 5073 | sgr(); |
| 5074 | break; |
| 5075 | case 'n': |
| 5076 | // DSR - Device status report |
| 5077 | dsr(); |
| 5078 | break; |
| 5079 | case 'o': |
| 5080 | case 'p': |
| 5081 | break; |
| 5082 | case 'q': |
| 5083 | // DECLL - Load leds |
| 5084 | // Not supported |
| 5085 | break; |
| 5086 | case 'r': |
| 5087 | // DECSTBM - Set top and bottom margins |
| 5088 | decstbm(); |
| 5089 | break; |
| 5090 | case 's': |
| 5091 | // Save cursor (ANSI.SYS) |
| 5092 | if (type == DeviceType.XTERM) { |
| 5093 | savedState.cursorX = currentState.cursorX; |
| 5094 | savedState.cursorY = currentState.cursorY; |
| 5095 | } |
| 5096 | break; |
| 5097 | case 't': |
| 5098 | break; |
| 5099 | case 'u': |
| 5100 | // Restore cursor (ANSI.SYS) |
| 5101 | if (type == DeviceType.XTERM) { |
| 5102 | cursorPosition(savedState.cursorY, savedState.cursorX); |
| 5103 | } |
| 5104 | break; |
| 5105 | case 'v': |
| 5106 | case 'w': |
| 5107 | break; |
| 5108 | case 'x': |
| 5109 | // DECREQTPARM - Request terminal parameters |
| 5110 | decreqtparm(); |
| 5111 | break; |
| 5112 | case 'y': |
| 5113 | case 'z': |
| 5114 | case '{': |
| 5115 | case '|': |
| 5116 | case '}': |
| 5117 | case '~': |
| 5118 | break; |
| 5119 | } |
| 5120 | toGround(); |
| 5121 | } |
| 5122 | |
| 5123 | // 7F --> ignore |
| 5124 | |
| 5125 | // 0x9C goes to GROUND |
| 5126 | if (ch == 0x9C) { |
| 5127 | toGround(); |
| 5128 | } |
| 5129 | |
| 5130 | // 0x3A goes to CSI_IGNORE |
| 5131 | if (ch == 0x3A) { |
| 5132 | scanState = ScanState.CSI_IGNORE; |
| 5133 | } |
| 5134 | return; |
| 5135 | |
| 5136 | case CSI_PARAM: |
| 5137 | // 00-17, 19, 1C-1F --> execute |
| 5138 | if (ch <= 0x1F) { |
| 5139 | handleControlChar(ch); |
| 5140 | } |
| 5141 | |
| 5142 | // 20-2F --> collect, then switch to CSI_INTERMEDIATE |
| 5143 | if ((ch >= 0x20) && (ch <= 0x2F)) { |
| 5144 | collect(ch); |
| 5145 | scanState = ScanState.CSI_INTERMEDIATE; |
| 5146 | } |
| 5147 | |
| 5148 | // 30-39, 3B --> param |
| 5149 | if ((ch >= '0') && (ch <= '9')) { |
| 5150 | param((byte) ch); |
| 5151 | } |
| 5152 | if (ch == ';') { |
| 5153 | param((byte) ch); |
| 5154 | } |
| 5155 | |
| 5156 | // 0x3A goes to CSI_IGNORE |
| 5157 | if (ch == 0x3A) { |
| 5158 | scanState = ScanState.CSI_IGNORE; |
| 5159 | } |
| 5160 | // 0x3C-3F goes to CSI_IGNORE |
| 5161 | if ((ch >= 0x3C) && (ch <= 0x3F)) { |
| 5162 | scanState = ScanState.CSI_IGNORE; |
| 5163 | } |
| 5164 | |
| 5165 | // 40-7E --> dispatch, then switch to GROUND |
| 5166 | if ((ch >= 0x40) && (ch <= 0x7E)) { |
| 5167 | switch (ch) { |
| 5168 | case '@': |
| 5169 | // ICH - Insert character |
| 5170 | ich(); |
| 5171 | break; |
| 5172 | case 'A': |
| 5173 | // CUU - Cursor up |
| 5174 | cuu(); |
| 5175 | break; |
| 5176 | case 'B': |
| 5177 | // CUD - Cursor down |
| 5178 | cud(); |
| 5179 | break; |
| 5180 | case 'C': |
| 5181 | // CUF - Cursor forward |
| 5182 | cuf(); |
| 5183 | break; |
| 5184 | case 'D': |
| 5185 | // CUB - Cursor backward |
| 5186 | cub(); |
| 5187 | break; |
| 5188 | case 'E': |
| 5189 | // CNL - Cursor down and to column 1 |
| 5190 | if (type == DeviceType.XTERM) { |
| 5191 | cnl(); |
| 5192 | } |
| 5193 | break; |
| 5194 | case 'F': |
| 5195 | // CPL - Cursor up and to column 1 |
| 5196 | if (type == DeviceType.XTERM) { |
| 5197 | cpl(); |
| 5198 | } |
| 5199 | break; |
| 5200 | case 'G': |
| 5201 | // CHA - Cursor to column # in current row |
| 5202 | if (type == DeviceType.XTERM) { |
| 5203 | cha(); |
| 5204 | } |
| 5205 | break; |
| 5206 | case 'H': |
| 5207 | // CUP - Cursor position |
| 5208 | cup(); |
| 5209 | break; |
| 5210 | case 'I': |
| 5211 | // CHT - Cursor forward X tab stops (default 1) |
| 5212 | if (type == DeviceType.XTERM) { |
| 5213 | cht(); |
| 5214 | } |
| 5215 | break; |
| 5216 | case 'J': |
| 5217 | // ED - Erase in display |
| 5218 | ed(); |
| 5219 | break; |
| 5220 | case 'K': |
| 5221 | // EL - Erase in line |
| 5222 | el(); |
| 5223 | break; |
| 5224 | case 'L': |
| 5225 | // IL - Insert line |
| 5226 | il(); |
| 5227 | break; |
| 5228 | case 'M': |
| 5229 | // DL - Delete line |
| 5230 | dl(); |
| 5231 | break; |
| 5232 | case 'N': |
| 5233 | case 'O': |
| 5234 | break; |
| 5235 | case 'P': |
| 5236 | // DCH - Delete character |
| 5237 | dch(); |
| 5238 | break; |
| 5239 | case 'Q': |
| 5240 | case 'R': |
| 5241 | break; |
| 5242 | case 'S': |
| 5243 | // Scroll up X lines (default 1) |
| 5244 | if (type == DeviceType.XTERM) { |
| 5245 | su(); |
| 5246 | } |
| 5247 | break; |
| 5248 | case 'T': |
| 5249 | // Scroll down X lines (default 1) |
| 5250 | if (type == DeviceType.XTERM) { |
| 5251 | sd(); |
| 5252 | } |
| 5253 | break; |
| 5254 | case 'U': |
| 5255 | case 'V': |
| 5256 | case 'W': |
| 5257 | break; |
| 5258 | case 'X': |
| 5259 | if ((type == DeviceType.VT220) |
| 5260 | || (type == DeviceType.XTERM)) { |
| 5261 | |
| 5262 | // ECH - Erase character |
| 5263 | ech(); |
| 5264 | } |
| 5265 | break; |
| 5266 | case 'Y': |
| 5267 | break; |
| 5268 | case 'Z': |
| 5269 | // CBT - Cursor backward X tab stops (default 1) |
| 5270 | if (type == DeviceType.XTERM) { |
| 5271 | cbt(); |
| 5272 | } |
| 5273 | break; |
| 5274 | case '[': |
| 5275 | case '\\': |
| 5276 | case ']': |
| 5277 | case '^': |
| 5278 | case '_': |
| 5279 | break; |
| 5280 | case '`': |
| 5281 | // HPA - Cursor to column # in current row. Same as CHA |
| 5282 | if (type == DeviceType.XTERM) { |
| 5283 | cha(); |
| 5284 | } |
| 5285 | break; |
| 5286 | case 'a': |
| 5287 | // HPR - Cursor right. Same as CUF |
| 5288 | if (type == DeviceType.XTERM) { |
| 5289 | cuf(); |
| 5290 | } |
| 5291 | break; |
| 5292 | case 'b': |
| 5293 | // REP - Repeat last char X times |
| 5294 | if (type == DeviceType.XTERM) { |
| 5295 | rep(); |
| 5296 | } |
| 5297 | break; |
| 5298 | case 'c': |
| 5299 | // DA - Device attributes |
| 5300 | da(); |
| 5301 | break; |
| 5302 | case 'd': |
| 5303 | // VPA - Cursor to row, current column. |
| 5304 | if (type == DeviceType.XTERM) { |
| 5305 | vpa(); |
| 5306 | } |
| 5307 | break; |
| 5308 | case 'e': |
| 5309 | // VPR - Cursor down. Same as CUD |
| 5310 | if (type == DeviceType.XTERM) { |
| 5311 | cud(); |
| 5312 | } |
| 5313 | break; |
| 5314 | case 'f': |
| 5315 | // HVP - Horizontal and vertical position |
| 5316 | hvp(); |
| 5317 | break; |
| 5318 | case 'g': |
| 5319 | // TBC - Tabulation clear |
| 5320 | tbc(); |
| 5321 | break; |
| 5322 | case 'h': |
| 5323 | // Sets an ANSI or DEC private toggle |
| 5324 | setToggle(true); |
| 5325 | break; |
| 5326 | case 'i': |
| 5327 | if ((type == DeviceType.VT220) |
| 5328 | || (type == DeviceType.XTERM)) { |
| 5329 | |
| 5330 | // Printer functions |
| 5331 | printerFunctions(); |
| 5332 | } |
| 5333 | break; |
| 5334 | case 'j': |
| 5335 | case 'k': |
| 5336 | break; |
| 5337 | case 'l': |
| 5338 | // Sets an ANSI or DEC private toggle |
| 5339 | setToggle(false); |
| 5340 | break; |
| 5341 | case 'm': |
| 5342 | // SGR - Select graphics rendition |
| 5343 | sgr(); |
| 5344 | break; |
| 5345 | case 'n': |
| 5346 | // DSR - Device status report |
| 5347 | dsr(); |
| 5348 | break; |
| 5349 | case 'o': |
| 5350 | case 'p': |
| 5351 | break; |
| 5352 | case 'q': |
| 5353 | // DECLL - Load leds |
| 5354 | // Not supported |
| 5355 | break; |
| 5356 | case 'r': |
| 5357 | // DECSTBM - Set top and bottom margins |
| 5358 | decstbm(); |
| 5359 | break; |
| 5360 | case 's': |
| 5361 | case 't': |
| 5362 | case 'u': |
| 5363 | case 'v': |
| 5364 | case 'w': |
| 5365 | break; |
| 5366 | case 'x': |
| 5367 | // DECREQTPARM - Request terminal parameters |
| 5368 | decreqtparm(); |
| 5369 | break; |
| 5370 | case 'y': |
| 5371 | case 'z': |
| 5372 | case '{': |
| 5373 | case '|': |
| 5374 | case '}': |
| 5375 | case '~': |
| 5376 | break; |
| 5377 | } |
| 5378 | toGround(); |
| 5379 | } |
| 5380 | |
| 5381 | // 7F --> ignore |
| 5382 | return; |
| 5383 | |
| 5384 | case CSI_INTERMEDIATE: |
| 5385 | // 00-17, 19, 1C-1F --> execute |
| 5386 | if (ch <= 0x1F) { |
| 5387 | handleControlChar(ch); |
| 5388 | } |
| 5389 | |
| 5390 | // 20-2F --> collect |
| 5391 | if ((ch >= 0x20) && (ch <= 0x2F)) { |
| 5392 | collect(ch); |
| 5393 | } |
| 5394 | |
| 5395 | // 0x30-3F goes to CSI_IGNORE |
| 5396 | if ((ch >= 0x30) && (ch <= 0x3F)) { |
| 5397 | scanState = ScanState.CSI_IGNORE; |
| 5398 | } |
| 5399 | |
| 5400 | // 40-7E --> dispatch, then switch to GROUND |
| 5401 | if ((ch >= 0x40) && (ch <= 0x7E)) { |
| 5402 | switch (ch) { |
| 5403 | case '@': |
| 5404 | case 'A': |
| 5405 | case 'B': |
| 5406 | case 'C': |
| 5407 | case 'D': |
| 5408 | case 'E': |
| 5409 | case 'F': |
| 5410 | case 'G': |
| 5411 | case 'H': |
| 5412 | case 'I': |
| 5413 | case 'J': |
| 5414 | case 'K': |
| 5415 | case 'L': |
| 5416 | case 'M': |
| 5417 | case 'N': |
| 5418 | case 'O': |
| 5419 | case 'P': |
| 5420 | case 'Q': |
| 5421 | case 'R': |
| 5422 | case 'S': |
| 5423 | case 'T': |
| 5424 | case 'U': |
| 5425 | case 'V': |
| 5426 | case 'W': |
| 5427 | case 'X': |
| 5428 | case 'Y': |
| 5429 | case 'Z': |
| 5430 | case '[': |
| 5431 | case '\\': |
| 5432 | case ']': |
| 5433 | case '^': |
| 5434 | case '_': |
| 5435 | case '`': |
| 5436 | case 'a': |
| 5437 | case 'b': |
| 5438 | case 'c': |
| 5439 | case 'd': |
| 5440 | case 'e': |
| 5441 | case 'f': |
| 5442 | case 'g': |
| 5443 | case 'h': |
| 5444 | case 'i': |
| 5445 | case 'j': |
| 5446 | case 'k': |
| 5447 | case 'l': |
| 5448 | case 'm': |
| 5449 | case 'n': |
| 5450 | case 'o': |
| 5451 | break; |
| 5452 | case 'p': |
| 5453 | if (((type == DeviceType.VT220) |
| 5454 | || (type == DeviceType.XTERM)) |
| 5455 | && (collectBuffer.charAt(collectBuffer.length() - 1) == '\"') |
| 5456 | ) { |
| 5457 | // DECSCL - compatibility level |
| 5458 | decscl(); |
| 5459 | } |
| 5460 | if ((type == DeviceType.XTERM) |
| 5461 | && (collectBuffer.charAt(collectBuffer.length() - 1) == '!') |
| 5462 | ) { |
| 5463 | // DECSTR - Soft terminal reset |
| 5464 | decstr(); |
| 5465 | } |
| 5466 | break; |
| 5467 | case 'q': |
| 5468 | if (((type == DeviceType.VT220) |
| 5469 | || (type == DeviceType.XTERM)) |
| 5470 | && (collectBuffer.charAt(collectBuffer.length() - 1) == '\"') |
| 5471 | ) { |
| 5472 | // DECSCA |
| 5473 | decsca(); |
| 5474 | } |
| 5475 | break; |
| 5476 | case 'r': |
| 5477 | case 's': |
| 5478 | case 't': |
| 5479 | case 'u': |
| 5480 | case 'v': |
| 5481 | case 'w': |
| 5482 | case 'x': |
| 5483 | case 'y': |
| 5484 | case 'z': |
| 5485 | case '{': |
| 5486 | case '|': |
| 5487 | case '}': |
| 5488 | case '~': |
| 5489 | break; |
| 5490 | } |
| 5491 | toGround(); |
| 5492 | } |
| 5493 | |
| 5494 | // 7F --> ignore |
| 5495 | return; |
| 5496 | |
| 5497 | case CSI_IGNORE: |
| 5498 | // 00-17, 19, 1C-1F --> execute |
| 5499 | if (ch <= 0x1F) { |
| 5500 | handleControlChar(ch); |
| 5501 | } |
| 5502 | |
| 5503 | // 20-2F --> collect |
| 5504 | if ((ch >= 0x20) && (ch <= 0x2F)) { |
| 5505 | collect(ch); |
| 5506 | } |
| 5507 | |
| 5508 | // 40-7E --> ignore, then switch to GROUND |
| 5509 | if ((ch >= 0x40) && (ch <= 0x7E)) { |
| 5510 | toGround(); |
| 5511 | } |
| 5512 | |
| 5513 | // 20-3F, 7F --> ignore |
| 5514 | |
| 5515 | return; |
| 5516 | |
| 5517 | case DCS_ENTRY: |
| 5518 | |
| 5519 | // 0x9C goes to GROUND |
| 5520 | if (ch == 0x9C) { |
| 5521 | toGround(); |
| 5522 | } |
| 5523 | |
| 5524 | // 0x1B 0x5C goes to GROUND |
| 5525 | if (ch == 0x1B) { |
| 5526 | collect(ch); |
| 5527 | } |
| 5528 | if (ch == 0x5C) { |
| 5529 | if ((collectBuffer.length() > 0) |
| 5530 | && (collectBuffer.charAt(collectBuffer.length() - 1) == 0x1B) |
| 5531 | ) { |
| 5532 | toGround(); |
| 5533 | } |
| 5534 | } |
| 5535 | |
| 5536 | // 20-2F --> collect, then switch to DCS_INTERMEDIATE |
| 5537 | if ((ch >= 0x20) && (ch <= 0x2F)) { |
| 5538 | collect(ch); |
| 5539 | scanState = ScanState.DCS_INTERMEDIATE; |
| 5540 | } |
| 5541 | |
| 5542 | // 30-39, 3B --> param, then switch to DCS_PARAM |
| 5543 | if ((ch >= '0') && (ch <= '9')) { |
| 5544 | param((byte) ch); |
| 5545 | scanState = ScanState.DCS_PARAM; |
| 5546 | } |
| 5547 | if (ch == ';') { |
| 5548 | param((byte) ch); |
| 5549 | scanState = ScanState.DCS_PARAM; |
| 5550 | } |
| 5551 | |
| 5552 | // 3C-3F --> collect, then switch to DCS_PARAM |
| 5553 | if ((ch >= 0x3C) && (ch <= 0x3F)) { |
| 5554 | collect(ch); |
| 5555 | scanState = ScanState.DCS_PARAM; |
| 5556 | } |
| 5557 | |
| 5558 | // 00-17, 19, 1C-1F, 7F --> ignore |
| 5559 | |
| 5560 | // 0x3A goes to DCS_IGNORE |
| 5561 | if (ch == 0x3F) { |
| 5562 | scanState = ScanState.DCS_IGNORE; |
| 5563 | } |
| 5564 | |
| 5565 | // 0x40-7E goes to DCS_PASSTHROUGH |
| 5566 | if ((ch >= 0x40) && (ch <= 0x7E)) { |
| 5567 | scanState = ScanState.DCS_PASSTHROUGH; |
| 5568 | } |
| 5569 | return; |
| 5570 | |
| 5571 | case DCS_INTERMEDIATE: |
| 5572 | |
| 5573 | // 0x9C goes to GROUND |
| 5574 | if (ch == 0x9C) { |
| 5575 | toGround(); |
| 5576 | } |
| 5577 | |
| 5578 | // 0x1B 0x5C goes to GROUND |
| 5579 | if (ch == 0x1B) { |
| 5580 | collect(ch); |
| 5581 | } |
| 5582 | if (ch == 0x5C) { |
| 5583 | if ((collectBuffer.length() > 0) |
| 5584 | && (collectBuffer.charAt(collectBuffer.length() - 1) == 0x1B) |
| 5585 | ) { |
| 5586 | toGround(); |
| 5587 | } |
| 5588 | } |
| 5589 | |
| 5590 | // 0x30-3F goes to DCS_IGNORE |
| 5591 | if ((ch >= 0x30) && (ch <= 0x3F)) { |
| 5592 | scanState = ScanState.DCS_IGNORE; |
| 5593 | } |
| 5594 | |
| 5595 | // 0x40-7E goes to DCS_PASSTHROUGH |
| 5596 | if ((ch >= 0x40) && (ch <= 0x7E)) { |
| 5597 | scanState = ScanState.DCS_PASSTHROUGH; |
| 5598 | } |
| 5599 | |
| 5600 | // 00-17, 19, 1C-1F, 7F --> ignore |
| 5601 | return; |
| 5602 | |
| 5603 | case DCS_PARAM: |
| 5604 | |
| 5605 | // 0x9C goes to GROUND |
| 5606 | if (ch == 0x9C) { |
| 5607 | toGround(); |
| 5608 | } |
| 5609 | |
| 5610 | // 0x1B 0x5C goes to GROUND |
| 5611 | if (ch == 0x1B) { |
| 5612 | collect(ch); |
| 5613 | } |
| 5614 | if (ch == 0x5C) { |
| 5615 | if ((collectBuffer.length() > 0) |
| 5616 | && (collectBuffer.charAt(collectBuffer.length() - 1) == 0x1B) |
| 5617 | ) { |
| 5618 | toGround(); |
| 5619 | } |
| 5620 | } |
| 5621 | |
| 5622 | // 20-2F --> collect, then switch to DCS_INTERMEDIATE |
| 5623 | if ((ch >= 0x20) && (ch <= 0x2F)) { |
| 5624 | collect(ch); |
| 5625 | scanState = ScanState.DCS_INTERMEDIATE; |
| 5626 | } |
| 5627 | |
| 5628 | // 30-39, 3B --> param |
| 5629 | if ((ch >= '0') && (ch <= '9')) { |
| 5630 | param((byte) ch); |
| 5631 | } |
| 5632 | if (ch == ';') { |
| 5633 | param((byte) ch); |
| 5634 | } |
| 5635 | |
| 5636 | // 00-17, 19, 1C-1F, 7F --> ignore |
| 5637 | |
| 5638 | // 0x3A, 3C-3F goes to DCS_IGNORE |
| 5639 | if (ch == 0x3F) { |
| 5640 | scanState = ScanState.DCS_IGNORE; |
| 5641 | } |
| 5642 | if ((ch >= 0x3C) && (ch <= 0x3F)) { |
| 5643 | scanState = ScanState.DCS_IGNORE; |
| 5644 | } |
| 5645 | |
| 5646 | // 0x40-7E goes to DCS_PASSTHROUGH |
| 5647 | if ((ch >= 0x40) && (ch <= 0x7E)) { |
| 5648 | scanState = ScanState.DCS_PASSTHROUGH; |
| 5649 | } |
| 5650 | return; |
| 5651 | |
| 5652 | case DCS_PASSTHROUGH: |
| 5653 | // 0x9C goes to GROUND |
| 5654 | if (ch == 0x9C) { |
| 5655 | toGround(); |
| 5656 | } |
| 5657 | |
| 5658 | // 0x1B 0x5C goes to GROUND |
| 5659 | if (ch == 0x1B) { |
| 5660 | collect(ch); |
| 5661 | } |
| 5662 | if (ch == 0x5C) { |
| 5663 | if ((collectBuffer.length() > 0) |
| 5664 | && (collectBuffer.charAt(collectBuffer.length() - 1) == 0x1B) |
| 5665 | ) { |
| 5666 | toGround(); |
| 5667 | } |
| 5668 | } |
| 5669 | |
| 5670 | // 00-17, 19, 1C-1F, 20-7E --> put |
| 5671 | // TODO |
| 5672 | if (ch <= 0x17) { |
| 5673 | return; |
| 5674 | } |
| 5675 | if (ch == 0x19) { |
| 5676 | return; |
| 5677 | } |
| 5678 | if ((ch >= 0x1C) && (ch <= 0x1F)) { |
| 5679 | return; |
| 5680 | } |
| 5681 | if ((ch >= 0x20) && (ch <= 0x7E)) { |
| 5682 | return; |
| 5683 | } |
| 5684 | |
| 5685 | // 7F --> ignore |
| 5686 | |
| 5687 | return; |
| 5688 | |
| 5689 | case DCS_IGNORE: |
| 5690 | // 00-17, 19, 1C-1F, 20-7F --> ignore |
| 5691 | |
| 5692 | // 0x9C goes to GROUND |
| 5693 | if (ch == 0x9C) { |
| 5694 | toGround(); |
| 5695 | } |
| 5696 | |
| 5697 | return; |
| 5698 | |
| 5699 | case SOSPMAPC_STRING: |
| 5700 | // 00-17, 19, 1C-1F, 20-7F --> ignore |
| 5701 | |
| 5702 | // 0x9C goes to GROUND |
| 5703 | if (ch == 0x9C) { |
| 5704 | toGround(); |
| 5705 | } |
| 5706 | |
| 5707 | return; |
| 5708 | |
| 5709 | case OSC_STRING: |
| 5710 | // Special case for Xterm: OSC can pass control characters |
| 5711 | if ((ch == 0x9C) || (ch <= 0x07)) { |
| 5712 | oscPut(ch); |
| 5713 | } |
| 5714 | |
| 5715 | // 00-17, 19, 1C-1F --> ignore |
| 5716 | |
| 5717 | // 20-7F --> osc_put |
| 5718 | if ((ch >= 0x20) && (ch <= 0x7F)) { |
| 5719 | oscPut(ch); |
| 5720 | } |
| 5721 | |
| 5722 | // 0x9C goes to GROUND |
| 5723 | if (ch == 0x9C) { |
| 5724 | toGround(); |
| 5725 | } |
| 5726 | |
| 5727 | return; |
| 5728 | |
| 5729 | case VT52_DIRECT_CURSOR_ADDRESS: |
| 5730 | // This is a special case for the VT52 sequence "ESC Y l c" |
| 5731 | if (collectBuffer.length() == 0) { |
| 5732 | collect(ch); |
| 5733 | } else if (collectBuffer.length() == 1) { |
| 5734 | // We've got the two characters, one in the buffer and the |
| 5735 | // other in ch. |
| 5736 | cursorPosition(collectBuffer.charAt(0) - '\040', ch - '\040'); |
| 5737 | toGround(); |
| 5738 | } |
| 5739 | return; |
| 5740 | } |
| 5741 | |
| 5742 | } |
| 5743 | |
| 5744 | /** |
| 5745 | * Expose current cursor X to outside world. |
| 5746 | * |
| 5747 | * @return current cursor X |
| 5748 | */ |
| 5749 | public final int getCursorX() { |
| 5750 | if (display.get(currentState.cursorY).isDoubleWidth()) { |
| 5751 | return currentState.cursorX * 2; |
| 5752 | } |
| 5753 | return currentState.cursorX; |
| 5754 | } |
| 5755 | |
| 5756 | /** |
| 5757 | * Expose current cursor Y to outside world. |
| 5758 | * |
| 5759 | * @return current cursor Y |
| 5760 | */ |
| 5761 | public final int getCursorY() { |
| 5762 | return currentState.cursorY; |
| 5763 | } |
| 5764 | |
| 5765 | /** |
| 5766 | * Read function runs on a separate thread. |
| 5767 | */ |
| 5768 | public final void run() { |
| 5769 | boolean utf8 = false; |
| 5770 | boolean done = false; |
| 5771 | |
| 5772 | if (type == DeviceType.XTERM) { |
| 5773 | utf8 = true; |
| 5774 | } |
| 5775 | |
| 5776 | // available() will often return > 1, so we need to read in chunks to |
| 5777 | // stay caught up. |
| 5778 | char [] readBufferUTF8 = null; |
| 5779 | byte [] readBuffer = null; |
| 5780 | if (utf8) { |
| 5781 | readBufferUTF8 = new char[128]; |
| 5782 | } else { |
| 5783 | readBuffer = new byte[128]; |
| 5784 | } |
| 5785 | |
| 5786 | while (!done && !stopReaderThread) { |
| 5787 | try { |
| 5788 | int n = inputStream.available(); |
| 5789 | // System.err.printf("available() %d\n", n); System.err.flush(); |
| 5790 | if (utf8) { |
| 5791 | if (readBufferUTF8.length < n) { |
| 5792 | // The buffer wasn't big enough, make it huger |
| 5793 | int newSizeHalf = Math.max(readBufferUTF8.length, n); |
| 5794 | |
| 5795 | readBufferUTF8 = new char[newSizeHalf * 2]; |
| 5796 | } |
| 5797 | } else { |
| 5798 | if (readBuffer.length < n) { |
| 5799 | // The buffer wasn't big enough, make it huger |
| 5800 | int newSizeHalf = Math.max(readBuffer.length, n); |
| 5801 | readBuffer = new byte[newSizeHalf * 2]; |
| 5802 | } |
| 5803 | } |
| 5804 | |
| 5805 | int rc = -1; |
| 5806 | if (utf8) { |
| 5807 | rc = input.read(readBufferUTF8, 0, |
| 5808 | readBufferUTF8.length); |
| 5809 | } else { |
| 5810 | rc = inputStream.read(readBuffer, 0, |
| 5811 | readBuffer.length); |
| 5812 | } |
| 5813 | // System.err.printf("read() %d\n", rc); System.err.flush(); |
| 5814 | if (rc == -1) { |
| 5815 | // This is EOF |
| 5816 | done = true; |
| 5817 | } else { |
| 5818 | for (int i = 0; i < rc; i++) { |
| 5819 | int ch = 0; |
| 5820 | if (utf8) { |
| 5821 | ch = readBufferUTF8[i]; |
| 5822 | } else { |
| 5823 | ch = readBuffer[i]; |
| 5824 | } |
| 5825 | // Don't step on UI events |
| 5826 | synchronized (this) { |
| 5827 | consume((char)ch); |
| 5828 | } |
| 5829 | } |
| 5830 | } |
| 5831 | // System.err.println("end while loop"); System.err.flush(); |
| 5832 | } catch (IOException e) { |
| 5833 | e.printStackTrace(); |
| 5834 | done = true; |
| 5835 | } |
| 5836 | } // while ((done == false) && (stopReaderThread == false)) |
| 5837 | |
| 5838 | // Let the rest of the world know that I am done. |
| 5839 | stopReaderThread = true; |
| 5840 | |
| 5841 | // System.err.println("*** run() exiting..."); System.err.flush(); |
| 5842 | } |
| 5843 | |
| 5844 | } |