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daa4106c | 1 | /* |
34a42e78 KL |
2 | * Jexer - Java Text User Interface |
3 | * | |
4 | * License: LGPLv3 or later | |
5 | * | |
6 | * This module is licensed under the GNU Lesser General Public License | |
7 | * Version 3. Please see the file "COPYING" in this directory for more | |
8 | * information about the GNU Lesser General Public License Version 3. | |
9 | * | |
10 | * Copyright (C) 2015 Kevin Lamonte | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or | |
13 | * modify it under the terms of the GNU Lesser General Public License | |
14 | * as published by the Free Software Foundation; either version 3 of | |
15 | * the License, or (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, but | |
18 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
20 | * General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU Lesser General Public | |
23 | * License along with this program; if not, see | |
24 | * http://www.gnu.org/licenses/, or write to the Free Software | |
25 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | |
26 | * 02110-1301 USA | |
27 | * | |
28 | * @author Kevin Lamonte [kevin.lamonte@gmail.com] | |
29 | * @version 1 | |
30 | */ | |
31 | package jexer.tterminal; | |
32 | ||
33 | import java.io.InputStream; | |
34 | import java.io.InputStreamReader; | |
35 | import java.io.IOException; | |
36 | import java.io.OutputStream; | |
37 | import java.io.OutputStreamWriter; | |
38 | import java.io.Reader; | |
39 | import java.io.UnsupportedEncodingException; | |
40 | import java.io.Writer; | |
41 | import java.util.ArrayList; | |
42 | import java.util.Collections; | |
43 | import java.util.LinkedList; | |
44 | import java.util.List; | |
45 | ||
bd8d51fa KL |
46 | import jexer.TKeypress; |
47 | import jexer.event.TMouseEvent; | |
34a42e78 KL |
48 | import jexer.bits.Color; |
49 | import jexer.bits.Cell; | |
50 | import jexer.bits.CellAttributes; | |
34a42e78 KL |
51 | import static jexer.TKeypress.*; |
52 | ||
53 | /** | |
54 | * This implements a complex ANSI ECMA-48/ISO 6429/ANSI X3.64 type consoles, | |
55 | * including a scrollback buffer. | |
56 | * | |
57 | * <p> | |
58 | * It currently implements VT100, VT102, VT220, and XTERM with the following | |
59 | * caveats: | |
60 | * | |
61 | * <p> | |
bd8d51fa KL |
62 | * - The vttest scenario for VT220 8-bit controls (11.1.2.3) reports a |
63 | * failure with XTERM. This is due to vttest failing to decode the UTF-8 | |
64 | * stream. | |
65 | * | |
66 | * <p> | |
34a42e78 KL |
67 | * - Smooth scrolling, printing, keyboard locking, keyboard leds, and tests |
68 | * from VT100 are not supported. | |
69 | * | |
70 | * <p> | |
71 | * - User-defined keys (DECUDK), downloadable fonts (DECDLD), and VT100/ANSI | |
72 | * compatibility mode (DECSCL) from VT220 are not supported. (Also, | |
73 | * because DECSCL is not supported, it will fail the last part of the | |
74 | * vttest "Test of VT52 mode" if DeviceType is set to VT220.) | |
75 | * | |
76 | * <p> | |
77 | * - Numeric/application keys from the number pad are not supported because | |
78 | * they are not exposed from the TKeypress API. | |
79 | * | |
80 | * <p> | |
81 | * - VT52 HOLD SCREEN mode is not supported. | |
82 | * | |
83 | * <p> | |
84 | * - In VT52 graphics mode, the 3/, 5/, and 7/ characters (fraction | |
85 | * numerators) are not rendered correctly. | |
86 | * | |
87 | * <p> | |
88 | * - All data meant for the 'printer' (CSI Pc ? i) is discarded. | |
89 | */ | |
90 | public class ECMA48 implements Runnable { | |
91 | ||
92 | /** | |
93 | * The emulator can emulate several kinds of terminals. | |
94 | */ | |
95 | public enum DeviceType { | |
96 | /** | |
97 | * DEC VT100 but also including the three VT102 functions. | |
98 | */ | |
99 | VT100, | |
100 | ||
101 | /** | |
102 | * DEC VT102. | |
103 | */ | |
104 | VT102, | |
105 | ||
106 | /** | |
107 | * DEC VT220. | |
108 | */ | |
109 | VT220, | |
110 | ||
111 | /** | |
112 | * A subset of xterm. | |
113 | */ | |
114 | XTERM | |
115 | } | |
116 | ||
117 | /** | |
118 | * Return the proper primary Device Attributes string. | |
119 | * | |
120 | * @return string to send to remote side that is appropriate for the | |
121 | * this.type | |
122 | */ | |
123 | private String deviceTypeResponse() { | |
124 | switch (type) { | |
125 | case VT100: | |
126 | // "I am a VT100 with advanced video option" (often VT102) | |
127 | return "\033[?1;2c"; | |
128 | ||
129 | case VT102: | |
130 | // "I am a VT102" | |
131 | return "\033[?6c"; | |
132 | ||
133 | case VT220: | |
134 | // "I am a VT220" - 7 bit version | |
135 | if (!s8c1t) { | |
136 | return "\033[?62;1;6c"; | |
137 | } | |
138 | // "I am a VT220" - 8 bit version | |
139 | return "\u009b?62;1;6c"; | |
140 | case XTERM: | |
141 | // "I am a VT100 with advanced video option" (often VT102) | |
142 | return "\033[?1;2c"; | |
143 | default: | |
144 | throw new IllegalArgumentException("Invalid device type: " + type); | |
145 | } | |
146 | } | |
147 | ||
148 | /** | |
149 | * Return the proper TERM environment variable for this device type. | |
150 | * | |
bd8d51fa KL |
151 | * @param deviceType DeviceType.VT100, DeviceType, XTERM, etc. |
152 | * @return "vt100", "xterm", etc. | |
34a42e78 | 153 | */ |
bd8d51fa KL |
154 | public static String deviceTypeTerm(final DeviceType deviceType) { |
155 | switch (deviceType) { | |
34a42e78 | 156 | case VT100: |
bd8d51fa | 157 | return "vt100"; |
34a42e78 KL |
158 | |
159 | case VT102: | |
bd8d51fa | 160 | return "vt102"; |
34a42e78 KL |
161 | |
162 | case VT220: | |
bd8d51fa | 163 | return "vt220"; |
34a42e78 KL |
164 | |
165 | case XTERM: | |
bd8d51fa | 166 | return "xterm"; |
34a42e78 KL |
167 | |
168 | default: | |
bd8d51fa KL |
169 | throw new IllegalArgumentException("Invalid device type: " |
170 | + deviceType); | |
34a42e78 KL |
171 | } |
172 | } | |
173 | ||
174 | /** | |
175 | * Return the proper LANG for this device type. Only XTERM devices know | |
176 | * about UTF-8, the others are defined by their standard to be either | |
177 | * 7-bit or 8-bit characters only. | |
178 | * | |
bd8d51fa | 179 | * @param deviceType DeviceType.VT100, DeviceType, XTERM, etc. |
34a42e78 KL |
180 | * @param baseLang a base language without UTF-8 flag such as "C" or |
181 | * "en_US" | |
cf9af8df | 182 | * @return "en_US", "en_US.UTF-8", etc. |
34a42e78 | 183 | */ |
bd8d51fa KL |
184 | public static String deviceTypeLang(final DeviceType deviceType, |
185 | final String baseLang) { | |
34a42e78 | 186 | |
bd8d51fa | 187 | switch (deviceType) { |
34a42e78 | 188 | |
bd8d51fa | 189 | case VT100: |
34a42e78 | 190 | case VT102: |
34a42e78 | 191 | case VT220: |
bd8d51fa | 192 | return baseLang; |
34a42e78 KL |
193 | |
194 | case XTERM: | |
bd8d51fa | 195 | return baseLang + ".UTF-8"; |
34a42e78 KL |
196 | |
197 | default: | |
bd8d51fa KL |
198 | throw new IllegalArgumentException("Invalid device type: " |
199 | + deviceType); | |
34a42e78 KL |
200 | } |
201 | } | |
202 | ||
203 | /** | |
204 | * Write a string directly to the remote side. | |
205 | * | |
206 | * @param str string to send | |
207 | */ | |
208 | private void writeRemote(final String str) { | |
209 | if (stopReaderThread) { | |
210 | // Reader hit EOF, bail out now. | |
211 | close(); | |
212 | return; | |
213 | } | |
214 | ||
215 | // System.err.printf("writeRemote() '%s'\n", str); | |
216 | ||
217 | switch (type) { | |
218 | case VT100: | |
219 | case VT102: | |
220 | case VT220: | |
221 | if (outputStream == null) { | |
222 | return; | |
223 | } | |
224 | try { | |
225 | for (int i = 0; i < str.length(); i++) { | |
226 | outputStream.write(str.charAt(i)); | |
227 | } | |
228 | outputStream.flush(); | |
229 | } catch (IOException e) { | |
230 | // Assume EOF | |
231 | close(); | |
232 | } | |
233 | break; | |
234 | case XTERM: | |
235 | if (output == null) { | |
236 | return; | |
237 | } | |
238 | try { | |
239 | output.write(str); | |
240 | output.flush(); | |
241 | } catch (IOException e) { | |
242 | // Assume EOF | |
243 | close(); | |
244 | } | |
245 | break; | |
246 | default: | |
247 | throw new IllegalArgumentException("Invalid device type: " + type); | |
248 | } | |
249 | } | |
250 | ||
251 | /** | |
252 | * Close the input and output streams and stop the reader thread. Note | |
253 | * that it is safe to call this multiple times. | |
254 | */ | |
255 | public final void close() { | |
256 | ||
257 | // Synchronize so we don't stomp on the reader thread. | |
258 | synchronized (this) { | |
259 | ||
bb35d919 KL |
260 | // Close the input stream |
261 | switch (type) { | |
262 | case VT100: | |
263 | case VT102: | |
264 | case VT220: | |
265 | if (inputStream != null) { | |
266 | try { | |
267 | inputStream.close(); | |
268 | } catch (IOException e) { | |
269 | // SQUASH | |
270 | } | |
271 | inputStream = null; | |
272 | } | |
273 | break; | |
274 | case XTERM: | |
275 | if (input != null) { | |
276 | try { | |
277 | input.close(); | |
278 | } catch (IOException e) { | |
279 | // SQUASH | |
280 | } | |
281 | input = null; | |
282 | inputStream = null; | |
283 | } | |
284 | break; | |
285 | } | |
286 | ||
287 | // Tell the reader thread to stop looking at input. | |
34a42e78 KL |
288 | if (stopReaderThread == false) { |
289 | stopReaderThread = true; | |
290 | try { | |
291 | readerThread.join(); | |
292 | } catch (InterruptedException e) { | |
293 | e.printStackTrace(); | |
294 | } | |
295 | } | |
296 | ||
297 | // Close the output stream. | |
298 | switch (type) { | |
299 | case VT100: | |
300 | case VT102: | |
301 | case VT220: | |
302 | if (outputStream != null) { | |
303 | try { | |
304 | outputStream.close(); | |
305 | } catch (IOException e) { | |
306 | // SQUASH | |
307 | } | |
308 | outputStream = null; | |
309 | } | |
310 | break; | |
311 | case XTERM: | |
312 | if (output != null) { | |
313 | try { | |
314 | output.close(); | |
315 | } catch (IOException e) { | |
316 | // SQUASH | |
317 | } | |
318 | output = null; | |
319 | } | |
320 | break; | |
321 | default: | |
322 | throw new IllegalArgumentException("Invalid device type: " | |
323 | + type); | |
324 | } | |
325 | } // synchronized (this) | |
326 | } | |
327 | ||
328 | /** | |
329 | * When true, the reader thread is expected to exit. | |
330 | */ | |
bb35d919 | 331 | private volatile boolean stopReaderThread = false; |
34a42e78 KL |
332 | |
333 | /** | |
334 | * The reader thread. | |
335 | */ | |
336 | private Thread readerThread = null; | |
337 | ||
338 | /** | |
339 | * See if the reader thread is still running. | |
340 | * | |
341 | * @return if true, we are still connected to / reading from the remote | |
342 | * side | |
343 | */ | |
344 | public final boolean isReading() { | |
345 | return (!stopReaderThread); | |
346 | } | |
347 | ||
348 | /** | |
349 | * The type of emulator to be. | |
350 | */ | |
351 | private DeviceType type = DeviceType.VT102; | |
352 | ||
353 | /** | |
354 | * Obtain a new blank display line for an external user | |
355 | * (e.g. TTerminalWindow). | |
356 | * | |
357 | * @return new blank line | |
358 | */ | |
359 | public final DisplayLine getBlankDisplayLine() { | |
360 | return new DisplayLine(currentState.attr); | |
361 | } | |
362 | ||
363 | /** | |
364 | * The scrollback buffer characters + attributes. | |
365 | */ | |
bb35d919 | 366 | private volatile List<DisplayLine> scrollback; |
34a42e78 KL |
367 | |
368 | /** | |
369 | * Get the scrollback buffer. | |
370 | * | |
371 | * @return the scrollback buffer | |
372 | */ | |
373 | public final List<DisplayLine> getScrollbackBuffer() { | |
374 | return scrollback; | |
375 | } | |
376 | ||
377 | /** | |
378 | * The raw display buffer characters + attributes. | |
379 | */ | |
bb35d919 | 380 | private volatile List<DisplayLine> display; |
34a42e78 KL |
381 | |
382 | /** | |
383 | * Get the display buffer. | |
384 | * | |
385 | * @return the display buffer | |
386 | */ | |
387 | public final List<DisplayLine> getDisplayBuffer() { | |
388 | return display; | |
389 | } | |
390 | ||
391 | /** | |
392 | * The terminal's input. For type == XTERM, this is an InputStreamReader | |
393 | * with UTF-8 encoding. | |
394 | */ | |
395 | private Reader input; | |
396 | ||
397 | /** | |
398 | * The terminal's raw InputStream. This is used for type != XTERM. | |
399 | */ | |
400 | private volatile InputStream inputStream; | |
401 | ||
402 | /** | |
403 | * The terminal's output. For type == XTERM, this wraps an | |
404 | * OutputStreamWriter with UTF-8 encoding. | |
405 | */ | |
406 | private Writer output; | |
407 | ||
408 | /** | |
409 | * The terminal's raw OutputStream. This is used for type != XTERM. | |
410 | */ | |
411 | private OutputStream outputStream; | |
412 | ||
413 | /** | |
414 | * Parser character scan states. | |
415 | */ | |
416 | enum ScanState { | |
417 | GROUND, | |
418 | ESCAPE, | |
419 | ESCAPE_INTERMEDIATE, | |
420 | CSI_ENTRY, | |
421 | CSI_PARAM, | |
422 | CSI_INTERMEDIATE, | |
423 | CSI_IGNORE, | |
424 | DCS_ENTRY, | |
425 | DCS_INTERMEDIATE, | |
426 | DCS_PARAM, | |
427 | DCS_PASSTHROUGH, | |
428 | DCS_IGNORE, | |
429 | SOSPMAPC_STRING, | |
430 | OSC_STRING, | |
431 | VT52_DIRECT_CURSOR_ADDRESS | |
432 | } | |
433 | ||
434 | /** | |
435 | * Current scanning state. | |
436 | */ | |
437 | private ScanState scanState; | |
438 | ||
439 | /** | |
440 | * The selected number pad mode (DECKPAM, DECKPNM). We record this, but | |
441 | * can't really use it in keypress() because we do not see number pad | |
442 | * events from TKeypress. | |
443 | */ | |
444 | private enum KeypadMode { | |
445 | Application, | |
446 | Numeric | |
447 | } | |
448 | ||
449 | /** | |
450 | * Arrow keys can emit three different sequences (DECCKM or VT52 | |
451 | * submode). | |
452 | */ | |
453 | private enum ArrowKeyMode { | |
454 | VT52, | |
455 | ANSI, | |
456 | VT100 | |
457 | } | |
458 | ||
459 | /** | |
460 | * Available character sets for GL, GR, G0, G1, G2, G3. | |
461 | */ | |
462 | private enum CharacterSet { | |
463 | US, | |
464 | UK, | |
465 | DRAWING, | |
466 | ROM, | |
467 | ROM_SPECIAL, | |
468 | VT52_GRAPHICS, | |
469 | DEC_SUPPLEMENTAL, | |
470 | NRC_DUTCH, | |
471 | NRC_FINNISH, | |
472 | NRC_FRENCH, | |
473 | NRC_FRENCH_CA, | |
474 | NRC_GERMAN, | |
475 | NRC_ITALIAN, | |
476 | NRC_NORWEGIAN, | |
477 | NRC_SPANISH, | |
478 | NRC_SWEDISH, | |
479 | NRC_SWISS | |
480 | } | |
481 | ||
482 | /** | |
483 | * Single-shift states used by the C1 control characters SS2 (0x8E) and | |
484 | * SS3 (0x8F). | |
485 | */ | |
486 | private enum Singleshift { | |
487 | NONE, | |
488 | SS2, | |
489 | SS3 | |
490 | } | |
491 | ||
492 | /** | |
493 | * VT220+ lockshift states. | |
494 | */ | |
495 | private enum LockshiftMode { | |
496 | NONE, | |
497 | G1_GR, | |
498 | G2_GR, | |
499 | G2_GL, | |
500 | G3_GR, | |
501 | G3_GL | |
502 | } | |
503 | ||
bd8d51fa KL |
504 | /** |
505 | * XTERM mouse reporting protocols. | |
506 | */ | |
507 | private enum MouseProtocol { | |
508 | OFF, | |
509 | X10, | |
510 | NORMAL, | |
511 | BUTTONEVENT, | |
512 | ANYEVENT | |
513 | } | |
514 | ||
515 | /** | |
516 | * Which mouse protocol is active. | |
517 | */ | |
518 | private MouseProtocol mouseProtocol = MouseProtocol.OFF; | |
519 | ||
520 | /** | |
521 | * XTERM mouse reporting encodings. | |
522 | */ | |
523 | private enum MouseEncoding { | |
524 | X10, | |
b5f2a6db KL |
525 | UTF8, |
526 | SGR | |
bd8d51fa KL |
527 | } |
528 | ||
529 | /** | |
530 | * Which mouse encoding is active. | |
531 | */ | |
532 | private MouseEncoding mouseEncoding = MouseEncoding.X10; | |
533 | ||
34a42e78 KL |
534 | /** |
535 | * Physical display width. We start at 80x24, but the user can resize us | |
536 | * bigger/smaller. | |
537 | */ | |
538 | private int width; | |
539 | ||
540 | /** | |
541 | * Get the display width. | |
542 | * | |
543 | * @return the width (usually 80 or 132) | |
544 | */ | |
545 | public final int getWidth() { | |
546 | return width; | |
547 | } | |
548 | ||
549 | /** | |
550 | * Physical display height. We start at 80x24, but the user can resize | |
551 | * us bigger/smaller. | |
552 | */ | |
553 | private int height; | |
554 | ||
555 | /** | |
556 | * Get the display height. | |
557 | * | |
558 | * @return the height (usually 24) | |
559 | */ | |
560 | public final int getHeight() { | |
561 | return height; | |
562 | } | |
563 | ||
564 | /** | |
565 | * Top margin of the scrolling region. | |
566 | */ | |
567 | private int scrollRegionTop; | |
568 | ||
569 | /** | |
570 | * Bottom margin of the scrolling region. | |
571 | */ | |
572 | private int scrollRegionBottom; | |
573 | ||
574 | /** | |
575 | * Right margin column number. This can be selected by the remote side | |
576 | * to be 80/132 (rightMargin values 79/131), or it can be (width - 1). | |
577 | */ | |
578 | private int rightMargin; | |
579 | ||
580 | /** | |
581 | * Last character printed. | |
582 | */ | |
583 | private char repCh; | |
584 | ||
585 | /** | |
586 | * VT100-style line wrapping: a character is placed in column 80 (or | |
587 | * 132), but the line does NOT wrap until another character is written to | |
588 | * column 1 of the next line, after which the cursor moves to column 2. | |
589 | */ | |
590 | private boolean wrapLineFlag; | |
591 | ||
592 | /** | |
593 | * VT220 single shift flag. | |
594 | */ | |
595 | private Singleshift singleshift = Singleshift.NONE; | |
596 | ||
597 | /** | |
598 | * true = insert characters, false = overwrite. | |
599 | */ | |
600 | private boolean insertMode = false; | |
601 | ||
602 | /** | |
603 | * VT52 mode as selected by DECANM. True means VT52, false means | |
604 | * ANSI. Default is ANSI. | |
605 | */ | |
606 | private boolean vt52Mode = false; | |
607 | ||
608 | /** | |
609 | * Visible cursor (DECTCEM). | |
610 | */ | |
611 | private boolean cursorVisible = true; | |
612 | ||
613 | /** | |
614 | * Get visible cursor flag. | |
615 | * | |
616 | * @return if true, the cursor is visible | |
617 | */ | |
7c870d89 | 618 | public final boolean isCursorVisible() { |
34a42e78 KL |
619 | return cursorVisible; |
620 | } | |
621 | ||
622 | /** | |
623 | * Screen title as set by the xterm OSC sequence. Lots of applications | |
624 | * send a screenTitle regardless of whether it is an xterm client or not. | |
625 | */ | |
626 | private String screenTitle = ""; | |
627 | ||
628 | /** | |
629 | * Get the screen title as set by the xterm OSC sequence. Lots of | |
630 | * applications send a screenTitle regardless of whether it is an xterm | |
631 | * client or not. | |
632 | * | |
633 | * @return screen title | |
634 | */ | |
635 | public final String getScreenTitle() { | |
636 | return screenTitle; | |
637 | } | |
638 | ||
34a42e78 KL |
639 | /** |
640 | * Parameter characters being collected. | |
641 | */ | |
642 | private List<Integer> csiParams; | |
643 | ||
644 | /** | |
645 | * Non-csi collect buffer. | |
646 | */ | |
bd8d51fa | 647 | private StringBuilder collectBuffer; |
34a42e78 KL |
648 | |
649 | /** | |
650 | * When true, use the G1 character set. | |
651 | */ | |
652 | private boolean shiftOut = false; | |
653 | ||
654 | /** | |
655 | * Horizontal tab stop locations. | |
656 | */ | |
657 | private List<Integer> tabStops; | |
658 | ||
659 | /** | |
660 | * S8C1T. True means 8bit controls, false means 7bit controls. | |
661 | */ | |
662 | private boolean s8c1t = false; | |
663 | ||
664 | /** | |
665 | * Printer mode. True means send all output to printer, which discards | |
666 | * it. | |
667 | */ | |
668 | private boolean printerControllerMode = false; | |
669 | ||
670 | /** | |
671 | * LMN line mode. If true, linefeed() puts the cursor on the first | |
672 | * column of the next line. If false, linefeed() puts the cursor one | |
673 | * line down on the current line. The default is false. | |
674 | */ | |
675 | private boolean newLineMode = false; | |
676 | ||
677 | /** | |
678 | * Whether arrow keys send ANSI, VT100, or VT52 sequences. | |
679 | */ | |
680 | private ArrowKeyMode arrowKeyMode; | |
681 | ||
682 | /** | |
683 | * Whether number pad keys send VT100 or VT52, application or numeric | |
684 | * sequences. | |
685 | */ | |
0d47c546 | 686 | @SuppressWarnings("unused") |
34a42e78 KL |
687 | private KeypadMode keypadMode; |
688 | ||
689 | /** | |
690 | * When true, the terminal is in 132-column mode (DECCOLM). | |
691 | */ | |
692 | private boolean columns132 = false; | |
693 | ||
694 | /** | |
cf9af8df KL |
695 | * Get 132 columns value. |
696 | * | |
697 | * @return if true, the terminal is in 132 column mode | |
698 | */ | |
699 | public final boolean isColumns132() { | |
700 | return columns132; | |
701 | } | |
702 | ||
703 | /** | |
34a42e78 KL |
704 | * true = reverse video. Set by DECSCNM. |
705 | */ | |
706 | private boolean reverseVideo = false; | |
707 | ||
708 | /** | |
709 | * false = echo characters locally. | |
710 | */ | |
711 | private boolean fullDuplex = true; | |
712 | ||
713 | /** | |
714 | * DECSC/DECRC save/restore a subset of the total state. This class | |
715 | * encapsulates those specific flags/modes. | |
716 | */ | |
717 | private class SaveableState { | |
718 | ||
719 | /** | |
720 | * When true, cursor positions are relative to the scrolling region. | |
721 | */ | |
722 | public boolean originMode = false; | |
723 | ||
724 | /** | |
725 | * The current editing X position. | |
726 | */ | |
727 | public int cursorX = 0; | |
728 | ||
729 | /** | |
730 | * The current editing Y position. | |
731 | */ | |
732 | public int cursorY = 0; | |
733 | ||
734 | /** | |
735 | * Which character set is currently selected in G0. | |
736 | */ | |
737 | public CharacterSet g0Charset = CharacterSet.US; | |
738 | ||
739 | /** | |
740 | * Which character set is currently selected in G1. | |
741 | */ | |
742 | public CharacterSet g1Charset = CharacterSet.DRAWING; | |
743 | ||
744 | /** | |
745 | * Which character set is currently selected in G2. | |
746 | */ | |
747 | public CharacterSet g2Charset = CharacterSet.US; | |
748 | ||
749 | /** | |
750 | * Which character set is currently selected in G3. | |
751 | */ | |
752 | public CharacterSet g3Charset = CharacterSet.US; | |
753 | ||
754 | /** | |
755 | * Which character set is currently selected in GR. | |
756 | */ | |
757 | public CharacterSet grCharset = CharacterSet.DRAWING; | |
758 | ||
759 | /** | |
760 | * The current drawing attributes. | |
761 | */ | |
762 | public CellAttributes attr; | |
763 | ||
764 | /** | |
765 | * GL lockshift mode. | |
766 | */ | |
767 | public LockshiftMode glLockshift = LockshiftMode.NONE; | |
768 | ||
769 | /** | |
770 | * GR lockshift mode. | |
771 | */ | |
772 | public LockshiftMode grLockshift = LockshiftMode.NONE; | |
773 | ||
774 | /** | |
775 | * Line wrap. | |
776 | */ | |
777 | public boolean lineWrap = true; | |
778 | ||
779 | /** | |
780 | * Reset to defaults. | |
781 | */ | |
782 | public void reset() { | |
783 | originMode = false; | |
784 | cursorX = 0; | |
785 | cursorY = 0; | |
786 | g0Charset = CharacterSet.US; | |
787 | g1Charset = CharacterSet.DRAWING; | |
788 | g2Charset = CharacterSet.US; | |
789 | g3Charset = CharacterSet.US; | |
790 | grCharset = CharacterSet.DRAWING; | |
791 | attr = new CellAttributes(); | |
792 | glLockshift = LockshiftMode.NONE; | |
793 | grLockshift = LockshiftMode.NONE; | |
794 | lineWrap = true; | |
795 | } | |
796 | ||
797 | /** | |
798 | * Copy attributes from another instance. | |
799 | * | |
800 | * @param that the other instance to match | |
801 | */ | |
802 | public void setTo(final SaveableState that) { | |
803 | this.originMode = that.originMode; | |
804 | this.cursorX = that.cursorX; | |
805 | this.cursorY = that.cursorY; | |
806 | this.g0Charset = that.g0Charset; | |
807 | this.g1Charset = that.g1Charset; | |
808 | this.g2Charset = that.g2Charset; | |
809 | this.g3Charset = that.g3Charset; | |
810 | this.grCharset = that.grCharset; | |
811 | this.attr = new CellAttributes(); | |
812 | this.attr.setTo(that.attr); | |
813 | this.glLockshift = that.glLockshift; | |
814 | this.grLockshift = that.grLockshift; | |
815 | this.lineWrap = that.lineWrap; | |
816 | } | |
817 | ||
818 | /** | |
819 | * Public constructor. | |
820 | */ | |
821 | public SaveableState() { | |
822 | reset(); | |
823 | } | |
824 | } | |
825 | ||
826 | /** | |
827 | * The current terminal state. | |
828 | */ | |
829 | private SaveableState currentState; | |
830 | ||
831 | /** | |
832 | * The last saved terminal state. | |
833 | */ | |
834 | private SaveableState savedState; | |
835 | ||
836 | /** | |
837 | * Clear the CSI parameters and flags. | |
838 | */ | |
839 | private void toGround() { | |
840 | csiParams.clear(); | |
bd8d51fa | 841 | collectBuffer = new StringBuilder(8); |
34a42e78 KL |
842 | scanState = ScanState.GROUND; |
843 | } | |
844 | ||
845 | /** | |
846 | * Reset the tab stops list. | |
847 | */ | |
848 | private void resetTabStops() { | |
849 | tabStops.clear(); | |
850 | for (int i = 0; (i * 8) <= rightMargin; i++) { | |
851 | tabStops.add(new Integer(i * 8)); | |
852 | } | |
853 | } | |
854 | ||
855 | /** | |
856 | * Reset the emulation state. | |
857 | */ | |
858 | private void reset() { | |
859 | ||
860 | currentState = new SaveableState(); | |
861 | savedState = new SaveableState(); | |
862 | scanState = ScanState.GROUND; | |
863 | width = 80; | |
864 | height = 24; | |
865 | scrollRegionTop = 0; | |
866 | scrollRegionBottom = height - 1; | |
867 | rightMargin = width - 1; | |
868 | newLineMode = false; | |
869 | arrowKeyMode = ArrowKeyMode.ANSI; | |
870 | keypadMode = KeypadMode.Numeric; | |
871 | wrapLineFlag = false; | |
872 | ||
873 | // Flags | |
874 | shiftOut = false; | |
875 | vt52Mode = false; | |
876 | insertMode = false; | |
877 | columns132 = false; | |
878 | newLineMode = false; | |
879 | reverseVideo = false; | |
880 | fullDuplex = true; | |
881 | cursorVisible = true; | |
882 | ||
883 | // VT220 | |
884 | singleshift = Singleshift.NONE; | |
885 | s8c1t = false; | |
886 | printerControllerMode = false; | |
887 | ||
bd8d51fa KL |
888 | // XTERM |
889 | mouseProtocol = MouseProtocol.OFF; | |
890 | mouseEncoding = MouseEncoding.X10; | |
891 | ||
34a42e78 KL |
892 | // Tab stops |
893 | resetTabStops(); | |
894 | ||
895 | // Clear CSI stuff | |
896 | toGround(); | |
897 | } | |
898 | ||
899 | /** | |
900 | * Public constructor. | |
901 | * | |
902 | * @param type one of the DeviceType constants to select VT100, VT102, | |
903 | * VT220, or XTERM | |
904 | * @param inputStream an InputStream connected to the remote side. For | |
cf9af8df | 905 | * type == XTERM, inputStream is converted to a Reader with UTF-8 |
34a42e78 KL |
906 | * encoding. |
907 | * @param outputStream an OutputStream connected to the remote user. For | |
908 | * type == XTERM, outputStream is converted to a Writer with UTF-8 | |
909 | * encoding. | |
910 | * @throws UnsupportedEncodingException if an exception is thrown when | |
911 | * creating the InputStreamReader | |
912 | */ | |
913 | public ECMA48(final DeviceType type, final InputStream inputStream, | |
914 | final OutputStream outputStream) throws UnsupportedEncodingException { | |
915 | ||
916 | assert (inputStream != null); | |
917 | assert (outputStream != null); | |
918 | ||
34a42e78 | 919 | csiParams = new ArrayList<Integer>(); |
34a42e78 KL |
920 | tabStops = new ArrayList<Integer>(); |
921 | scrollback = new LinkedList<DisplayLine>(); | |
922 | display = new LinkedList<DisplayLine>(); | |
923 | ||
924 | this.type = type; | |
925 | this.inputStream = inputStream; | |
926 | if (type == DeviceType.XTERM) { | |
927 | this.input = new InputStreamReader(inputStream, "UTF-8"); | |
928 | this.output = new OutputStreamWriter(outputStream, "UTF-8"); | |
929 | this.outputStream = null; | |
930 | } else { | |
931 | this.output = null; | |
932 | this.outputStream = outputStream; | |
933 | } | |
934 | ||
935 | reset(); | |
936 | for (int i = 0; i < height; i++) { | |
937 | display.add(new DisplayLine(currentState.attr)); | |
938 | } | |
939 | ||
940 | // Spin up the input reader | |
941 | readerThread = new Thread(this); | |
942 | readerThread.start(); | |
943 | } | |
944 | ||
945 | /** | |
946 | * Append a new line to the bottom of the display, adding lines off the | |
947 | * top to the scrollback buffer. | |
948 | */ | |
949 | private void newDisplayLine() { | |
950 | // Scroll the top line off into the scrollback buffer | |
951 | scrollback.add(display.get(0)); | |
952 | display.remove(0); | |
953 | DisplayLine line = new DisplayLine(currentState.attr); | |
954 | line.setReverseColor(reverseVideo); | |
955 | display.add(line); | |
956 | } | |
957 | ||
958 | /** | |
959 | * Wraps the current line. | |
960 | */ | |
961 | private void wrapCurrentLine() { | |
962 | if (currentState.cursorY == height - 1) { | |
963 | newDisplayLine(); | |
964 | } | |
965 | if (currentState.cursorY < height - 1) { | |
966 | currentState.cursorY++; | |
967 | } | |
968 | currentState.cursorX = 0; | |
969 | } | |
970 | ||
971 | /** | |
972 | * Handle a carriage return. | |
973 | */ | |
974 | private void carriageReturn() { | |
975 | currentState.cursorX = 0; | |
976 | wrapLineFlag = false; | |
977 | } | |
978 | ||
979 | /** | |
980 | * Reverse the color of the visible display. | |
981 | */ | |
982 | private void invertDisplayColors() { | |
983 | for (DisplayLine line: display) { | |
984 | line.setReverseColor(!line.isReverseColor()); | |
985 | } | |
986 | } | |
987 | ||
988 | /** | |
989 | * Handle a linefeed. | |
990 | */ | |
991 | private void linefeed() { | |
34a42e78 KL |
992 | |
993 | if (currentState.cursorY < scrollRegionBottom) { | |
994 | // Increment screen y | |
995 | currentState.cursorY++; | |
996 | } else { | |
997 | ||
998 | // Screen y does not increment | |
999 | ||
1000 | /* | |
1001 | * Two cases: either we're inside a scrolling region or not. If | |
1002 | * the scrolling region bottom is the bottom of the screen, then | |
1003 | * push the top line into the buffer. Else scroll the scrolling | |
1004 | * region up. | |
1005 | */ | |
1006 | if ((scrollRegionBottom == height - 1) && (scrollRegionTop == 0)) { | |
1007 | ||
1008 | // We're at the bottom of the scroll region, AND the scroll | |
1009 | // region is the entire screen. | |
1010 | ||
1011 | // New line | |
1012 | newDisplayLine(); | |
1013 | ||
1014 | } else { | |
1015 | // We're at the bottom of the scroll region, AND the scroll | |
1016 | // region is NOT the entire screen. | |
1017 | scrollingRegionScrollUp(scrollRegionTop, scrollRegionBottom, 1); | |
1018 | } | |
1019 | } | |
1020 | ||
1021 | if (newLineMode) { | |
1022 | currentState.cursorX = 0; | |
1023 | } | |
1024 | wrapLineFlag = false; | |
1025 | } | |
1026 | ||
1027 | /** | |
1028 | * Prints one character to the display buffer. | |
1029 | * | |
1030 | * @param ch character to display | |
1031 | */ | |
1032 | private void printCharacter(final char ch) { | |
1033 | int rightMargin = this.rightMargin; | |
1034 | ||
1035 | // Check if we have double-width, and if so chop at 40/66 instead of | |
1036 | // 80/132 | |
1037 | if (display.get(currentState.cursorY).isDoubleWidth()) { | |
1038 | rightMargin = ((rightMargin + 1) / 2) - 1; | |
1039 | } | |
1040 | ||
1041 | // Check the unusually-complicated line wrapping conditions... | |
1042 | if (currentState.cursorX == rightMargin) { | |
1043 | ||
1044 | if (currentState.lineWrap == true) { | |
1045 | /* | |
1046 | * This case happens when: the cursor was already on the | |
1047 | * right margin (either through printing or by an explicit | |
1048 | * placement command), and a character was printed. | |
1049 | * | |
1050 | * The line wraps only when a new character arrives AND the | |
1051 | * cursor is already on the right margin AND has placed a | |
1052 | * character in its cell. Easier to see than to explain. | |
1053 | */ | |
1054 | if (wrapLineFlag == false) { | |
1055 | /* | |
1056 | * This block marks the case that we are in the margin | |
1057 | * and the first character has been received and printed. | |
1058 | */ | |
1059 | wrapLineFlag = true; | |
1060 | } else { | |
1061 | /* | |
1062 | * This block marks the case that we are in the margin | |
1063 | * and the second character has been received and | |
1064 | * printed. | |
1065 | */ | |
1066 | wrapLineFlag = false; | |
1067 | wrapCurrentLine(); | |
1068 | } | |
1069 | } | |
1070 | } else if (currentState.cursorX <= rightMargin) { | |
1071 | /* | |
1072 | * This is the normal case: a character came in and was printed | |
1073 | * to the left of the right margin column. | |
1074 | */ | |
1075 | ||
1076 | // Turn off VT100 special-case flag | |
1077 | wrapLineFlag = false; | |
1078 | } | |
1079 | ||
1080 | // "Print" the character | |
1081 | Cell newCell = new Cell(ch); | |
1082 | CellAttributes newCellAttributes = (CellAttributes) newCell; | |
1083 | newCellAttributes.setTo(currentState.attr); | |
1084 | DisplayLine line = display.get(currentState.cursorY); | |
1085 | // Insert mode special case | |
1086 | if (insertMode == true) { | |
1087 | line.insert(currentState.cursorX, newCell); | |
1088 | } else { | |
1089 | // Replace an existing character | |
1090 | line.replace(currentState.cursorX, newCell); | |
1091 | } | |
1092 | ||
1093 | // Increment horizontal | |
1094 | if (wrapLineFlag == false) { | |
1095 | currentState.cursorX++; | |
1096 | if (currentState.cursorX > rightMargin) { | |
1097 | currentState.cursorX--; | |
1098 | } | |
1099 | } | |
1100 | } | |
1101 | ||
bd8d51fa KL |
1102 | /** |
1103 | * Translate the mouse event to a VT100, VT220, or XTERM sequence and | |
1104 | * send to the remote side. | |
1105 | * | |
1106 | * @param mouse mouse event received from the local user | |
1107 | */ | |
1108 | public void mouse(final TMouseEvent mouse) { | |
a90d3119 | 1109 | |
bd8d51fa | 1110 | /* |
a90d3119 KL |
1111 | System.err.printf("mouse(): protocol %s encoding %s mouse %s\n", |
1112 | mouseProtocol, mouseEncoding, mouse); | |
bd8d51fa KL |
1113 | */ |
1114 | ||
b5f2a6db | 1115 | if (mouseEncoding == MouseEncoding.X10) { |
a90d3119 KL |
1116 | // We will support X10 but only for (160,94) and smaller. |
1117 | if ((mouse.getX() >= 160) || (mouse.getY() >= 94)) { | |
1118 | return; | |
1119 | } | |
bd8d51fa | 1120 | } |
bd8d51fa KL |
1121 | |
1122 | switch (mouseProtocol) { | |
1123 | ||
1124 | case OFF: | |
1125 | // Do nothing | |
1126 | return; | |
1127 | ||
1128 | case X10: | |
1129 | // Only report button presses | |
1130 | if (mouse.getType() != TMouseEvent.Type.MOUSE_DOWN) { | |
1131 | return; | |
1132 | } | |
1133 | break; | |
1134 | ||
1135 | case NORMAL: | |
1136 | // Only report button presses and releases | |
1137 | if ((mouse.getType() != TMouseEvent.Type.MOUSE_DOWN) | |
1138 | && (mouse.getType() != TMouseEvent.Type.MOUSE_UP) | |
1139 | ) { | |
1140 | return; | |
1141 | } | |
1142 | break; | |
1143 | ||
1144 | case BUTTONEVENT: | |
1145 | /* | |
1146 | * Only report button presses, button releases, and motions that | |
1147 | * have a button down (i.e. drag-and-drop). | |
1148 | */ | |
1149 | if (mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) { | |
7c870d89 KL |
1150 | if (!mouse.isMouse1() |
1151 | && !mouse.isMouse2() | |
1152 | && !mouse.isMouse3() | |
1153 | && !mouse.isMouseWheelUp() | |
1154 | && !mouse.isMouseWheelDown() | |
bd8d51fa KL |
1155 | ) { |
1156 | return; | |
1157 | } | |
1158 | } | |
1159 | break; | |
1160 | ||
1161 | case ANYEVENT: | |
1162 | // Report everything | |
1163 | break; | |
1164 | } | |
1165 | ||
1166 | // Now encode the event | |
1167 | StringBuilder sb = new StringBuilder(6); | |
b5f2a6db KL |
1168 | if (mouseEncoding == MouseEncoding.SGR) { |
1169 | sb.append((char) 0x1B); | |
1170 | sb.append("[<"); | |
1171 | ||
1172 | if (mouse.isMouse1()) { | |
1173 | if (mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) { | |
1174 | sb.append("32;"); | |
1175 | } else { | |
1176 | sb.append("0;"); | |
1177 | } | |
1178 | } else if (mouse.isMouse2()) { | |
1179 | if (mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) { | |
1180 | sb.append("33;"); | |
1181 | } else { | |
1182 | sb.append("1;"); | |
1183 | } | |
1184 | } else if (mouse.isMouse3()) { | |
1185 | if (mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) { | |
1186 | sb.append("34;"); | |
1187 | } else { | |
1188 | sb.append("2;"); | |
1189 | } | |
1190 | } else if (mouse.isMouseWheelUp()) { | |
1191 | sb.append("64;"); | |
1192 | } else if (mouse.isMouseWheelDown()) { | |
1193 | sb.append("65;"); | |
1194 | } else { | |
1195 | // This is motion with no buttons down. | |
1196 | sb.append("35;"); | |
1197 | } | |
1198 | ||
1199 | sb.append(String.format("%d;%d", mouse.getX() + 1, | |
1200 | mouse.getY() + 1)); | |
1201 | ||
1202 | if (mouse.getType() == TMouseEvent.Type.MOUSE_UP) { | |
1203 | sb.append("m"); | |
1204 | } else { | |
1205 | sb.append("M"); | |
1206 | } | |
1207 | ||
bd8d51fa | 1208 | } else { |
b5f2a6db KL |
1209 | // X10 and UTF8 encodings |
1210 | sb.append((char) 0x1B); | |
1211 | sb.append('['); | |
1212 | sb.append('M'); | |
1213 | if (mouse.getType() == TMouseEvent.Type.MOUSE_UP) { | |
1214 | sb.append((char) (0x03 + 32)); | |
1215 | } else if (mouse.isMouse1()) { | |
1216 | if (mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) { | |
1217 | sb.append((char) (0x00 + 32 + 32)); | |
1218 | } else { | |
1219 | sb.append((char) (0x00 + 32)); | |
1220 | } | |
1221 | } else if (mouse.isMouse2()) { | |
1222 | if (mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) { | |
1223 | sb.append((char) (0x01 + 32 + 32)); | |
1224 | } else { | |
1225 | sb.append((char) (0x01 + 32)); | |
1226 | } | |
1227 | } else if (mouse.isMouse3()) { | |
1228 | if (mouse.getType() == TMouseEvent.Type.MOUSE_MOTION) { | |
1229 | sb.append((char) (0x02 + 32 + 32)); | |
1230 | } else { | |
1231 | sb.append((char) (0x02 + 32)); | |
1232 | } | |
1233 | } else if (mouse.isMouseWheelUp()) { | |
1234 | sb.append((char) (0x04 + 64)); | |
1235 | } else if (mouse.isMouseWheelDown()) { | |
1236 | sb.append((char) (0x05 + 64)); | |
1237 | } else { | |
1238 | // This is motion with no buttons down. | |
1239 | sb.append((char) (0x03 + 32)); | |
1240 | } | |
bd8d51fa | 1241 | |
b5f2a6db KL |
1242 | sb.append((char) (mouse.getX() + 33)); |
1243 | sb.append((char) (mouse.getY() + 33)); | |
1244 | } | |
bd8d51fa KL |
1245 | |
1246 | // System.err.printf("Would write: \'%s\'\n", sb.toString()); | |
1247 | writeRemote(sb.toString()); | |
1248 | } | |
1249 | ||
34a42e78 KL |
1250 | /** |
1251 | * Translate the keyboard press to a VT100, VT220, or XTERM sequence and | |
1252 | * send to the remote side. | |
1253 | * | |
1254 | * @param keypress keypress received from the local user | |
1255 | */ | |
1256 | public void keypress(final TKeypress keypress) { | |
1257 | writeRemote(keypressToString(keypress)); | |
1258 | } | |
1259 | ||
1260 | /** | |
1261 | * Translate the keyboard press to a VT100, VT220, or XTERM sequence. | |
1262 | * | |
1263 | * @param keypress keypress received from the local user | |
1264 | * @return string to transmit to the remote side | |
1265 | */ | |
1266 | private String keypressToString(final TKeypress keypress) { | |
1267 | ||
7c870d89 | 1268 | if ((fullDuplex == false) && (!keypress.isFnKey())) { |
34a42e78 KL |
1269 | /* |
1270 | * If this is a control character, process it like it came from | |
1271 | * the remote side. | |
1272 | */ | |
7c870d89 KL |
1273 | if (keypress.getChar() < 0x20) { |
1274 | handleControlChar(keypress.getChar()); | |
34a42e78 KL |
1275 | } else { |
1276 | // Local echo for everything else | |
7c870d89 | 1277 | printCharacter(keypress.getChar()); |
34a42e78 KL |
1278 | } |
1279 | } | |
1280 | ||
1281 | if ((newLineMode == true) && (keypress.equals(kbEnter))) { | |
1282 | // NLM: send CRLF | |
1283 | return "\015\012"; | |
1284 | } | |
1285 | ||
1286 | // Handle control characters | |
7c870d89 | 1287 | if ((keypress.isCtrl()) && (!keypress.isFnKey())) { |
34a42e78 | 1288 | StringBuilder sb = new StringBuilder(); |
7c870d89 | 1289 | char ch = keypress.getChar(); |
34a42e78 KL |
1290 | ch -= 0x40; |
1291 | sb.append(ch); | |
1292 | return sb.toString(); | |
1293 | } | |
1294 | ||
1295 | // Handle alt characters | |
7c870d89 | 1296 | if ((keypress.isAlt()) && (!keypress.isFnKey())) { |
34a42e78 | 1297 | StringBuilder sb = new StringBuilder("\033"); |
7c870d89 | 1298 | char ch = keypress.getChar(); |
34a42e78 KL |
1299 | sb.append(ch); |
1300 | return sb.toString(); | |
1301 | } | |
1302 | ||
1303 | if (keypress.equals(kbBackspace)) { | |
1304 | switch (type) { | |
1305 | case VT100: | |
1306 | return "\010"; | |
1307 | case VT102: | |
1308 | return "\010"; | |
1309 | case VT220: | |
1310 | return "\177"; | |
1311 | case XTERM: | |
1312 | return "\177"; | |
1313 | } | |
1314 | } | |
1315 | ||
1316 | if (keypress.equals(kbLeft)) { | |
1317 | switch (arrowKeyMode) { | |
1318 | case ANSI: | |
1319 | return "\033[D"; | |
1320 | case VT52: | |
1321 | return "\033D"; | |
1322 | case VT100: | |
1323 | return "\033OD"; | |
1324 | } | |
1325 | } | |
1326 | ||
1327 | if (keypress.equals(kbRight)) { | |
1328 | switch (arrowKeyMode) { | |
1329 | case ANSI: | |
1330 | return "\033[C"; | |
1331 | case VT52: | |
1332 | return "\033C"; | |
1333 | case VT100: | |
1334 | return "\033OC"; | |
1335 | } | |
1336 | } | |
1337 | ||
1338 | if (keypress.equals(kbUp)) { | |
1339 | switch (arrowKeyMode) { | |
1340 | case ANSI: | |
1341 | return "\033[A"; | |
1342 | case VT52: | |
1343 | return "\033A"; | |
1344 | case VT100: | |
1345 | return "\033OA"; | |
1346 | } | |
1347 | } | |
1348 | ||
1349 | if (keypress.equals(kbDown)) { | |
1350 | switch (arrowKeyMode) { | |
1351 | case ANSI: | |
1352 | return "\033[B"; | |
1353 | case VT52: | |
1354 | return "\033B"; | |
1355 | case VT100: | |
1356 | return "\033OB"; | |
1357 | } | |
1358 | } | |
1359 | ||
1360 | if (keypress.equals(kbHome)) { | |
1361 | switch (arrowKeyMode) { | |
1362 | case ANSI: | |
1363 | return "\033[H"; | |
1364 | case VT52: | |
1365 | return "\033H"; | |
1366 | case VT100: | |
1367 | return "\033OH"; | |
1368 | } | |
1369 | } | |
1370 | ||
1371 | if (keypress.equals(kbEnd)) { | |
1372 | switch (arrowKeyMode) { | |
1373 | case ANSI: | |
1374 | return "\033[F"; | |
1375 | case VT52: | |
1376 | return "\033F"; | |
1377 | case VT100: | |
1378 | return "\033OF"; | |
1379 | } | |
1380 | } | |
1381 | ||
1382 | if (keypress.equals(kbF1)) { | |
1383 | // PF1 | |
1384 | if (vt52Mode) { | |
1385 | return "\033P"; | |
1386 | } | |
1387 | return "\033OP"; | |
1388 | } | |
1389 | ||
1390 | if (keypress.equals(kbF2)) { | |
1391 | // PF2 | |
1392 | if (vt52Mode) { | |
1393 | return "\033Q"; | |
1394 | } | |
1395 | return "\033OQ"; | |
1396 | } | |
1397 | ||
1398 | if (keypress.equals(kbF3)) { | |
1399 | // PF3 | |
1400 | if (vt52Mode) { | |
1401 | return "\033R"; | |
1402 | } | |
1403 | return "\033OR"; | |
1404 | } | |
1405 | ||
1406 | if (keypress.equals(kbF4)) { | |
1407 | // PF4 | |
1408 | if (vt52Mode) { | |
1409 | return "\033S"; | |
1410 | } | |
1411 | return "\033OS"; | |
1412 | } | |
1413 | ||
1414 | if (keypress.equals(kbF5)) { | |
1415 | switch (type) { | |
1416 | case VT100: | |
1417 | return "\033Ot"; | |
1418 | case VT102: | |
1419 | return "\033Ot"; | |
1420 | case VT220: | |
1421 | return "\033[15~"; | |
1422 | case XTERM: | |
1423 | return "\033[15~"; | |
1424 | } | |
1425 | } | |
1426 | ||
1427 | if (keypress.equals(kbF6)) { | |
1428 | switch (type) { | |
1429 | case VT100: | |
1430 | return "\033Ou"; | |
1431 | case VT102: | |
1432 | return "\033Ou"; | |
1433 | case VT220: | |
1434 | return "\033[17~"; | |
1435 | case XTERM: | |
1436 | return "\033[17~"; | |
1437 | } | |
1438 | } | |
1439 | ||
1440 | if (keypress.equals(kbF7)) { | |
1441 | switch (type) { | |
1442 | case VT100: | |
1443 | return "\033Ov"; | |
1444 | case VT102: | |
1445 | return "\033Ov"; | |
1446 | case VT220: | |
1447 | return "\033[18~"; | |
1448 | case XTERM: | |
1449 | return "\033[18~"; | |
1450 | } | |
1451 | } | |
1452 | ||
1453 | if (keypress.equals(kbF8)) { | |
1454 | switch (type) { | |
1455 | case VT100: | |
1456 | return "\033Ol"; | |
1457 | case VT102: | |
1458 | return "\033Ol"; | |
1459 | case VT220: | |
1460 | return "\033[19~"; | |
1461 | case XTERM: | |
1462 | return "\033[19~"; | |
1463 | } | |
1464 | } | |
1465 | ||
1466 | if (keypress.equals(kbF9)) { | |
1467 | switch (type) { | |
1468 | case VT100: | |
1469 | return "\033Ow"; | |
1470 | case VT102: | |
1471 | return "\033Ow"; | |
1472 | case VT220: | |
1473 | return "\033[20~"; | |
1474 | case XTERM: | |
1475 | return "\033[20~"; | |
1476 | } | |
1477 | } | |
1478 | ||
1479 | if (keypress.equals(kbF10)) { | |
1480 | switch (type) { | |
1481 | case VT100: | |
1482 | return "\033Ox"; | |
1483 | case VT102: | |
1484 | return "\033Ox"; | |
1485 | case VT220: | |
1486 | return "\033[21~"; | |
1487 | case XTERM: | |
1488 | return "\033[21~"; | |
1489 | } | |
1490 | } | |
1491 | ||
1492 | if (keypress.equals(kbF11)) { | |
1493 | return "\033[23~"; | |
1494 | } | |
1495 | ||
1496 | if (keypress.equals(kbF12)) { | |
1497 | return "\033[24~"; | |
1498 | } | |
1499 | ||
1500 | if (keypress.equals(kbShiftF1)) { | |
1501 | // Shifted PF1 | |
1502 | if (vt52Mode) { | |
1503 | return "\0332P"; | |
1504 | } | |
1505 | return "\033O2P"; | |
1506 | } | |
1507 | ||
1508 | if (keypress.equals(kbShiftF2)) { | |
1509 | // Shifted PF2 | |
1510 | if (vt52Mode) { | |
1511 | return "\0332Q"; | |
1512 | } | |
1513 | return "\033O2Q"; | |
1514 | } | |
1515 | ||
1516 | if (keypress.equals(kbShiftF3)) { | |
1517 | // Shifted PF3 | |
1518 | if (vt52Mode) { | |
1519 | return "\0332R"; | |
1520 | } | |
1521 | return "\033O2R"; | |
1522 | } | |
1523 | ||
1524 | if (keypress.equals(kbShiftF4)) { | |
1525 | // Shifted PF4 | |
1526 | if (vt52Mode) { | |
1527 | return "\0332S"; | |
1528 | } | |
1529 | return "\033O2S"; | |
1530 | } | |
1531 | ||
1532 | if (keypress.equals(kbShiftF5)) { | |
1533 | // Shifted F5 | |
1534 | return "\033[15;2~"; | |
1535 | } | |
1536 | ||
1537 | if (keypress.equals(kbShiftF6)) { | |
1538 | // Shifted F6 | |
1539 | return "\033[17;2~"; | |
1540 | } | |
1541 | ||
1542 | if (keypress.equals(kbShiftF7)) { | |
1543 | // Shifted F7 | |
1544 | return "\033[18;2~"; | |
1545 | } | |
1546 | ||
1547 | if (keypress.equals(kbShiftF8)) { | |
1548 | // Shifted F8 | |
1549 | return "\033[19;2~"; | |
1550 | } | |
1551 | ||
1552 | if (keypress.equals(kbShiftF9)) { | |
1553 | // Shifted F9 | |
1554 | return "\033[20;2~"; | |
1555 | } | |
1556 | ||
1557 | if (keypress.equals(kbShiftF10)) { | |
1558 | // Shifted F10 | |
1559 | return "\033[21;2~"; | |
1560 | } | |
1561 | ||
1562 | if (keypress.equals(kbShiftF11)) { | |
1563 | // Shifted F11 | |
1564 | return "\033[23;2~"; | |
1565 | } | |
1566 | ||
1567 | if (keypress.equals(kbShiftF12)) { | |
1568 | // Shifted F12 | |
1569 | return "\033[24;2~"; | |
1570 | } | |
1571 | ||
1572 | if (keypress.equals(kbCtrlF1)) { | |
1573 | // Control PF1 | |
1574 | if (vt52Mode) { | |
1575 | return "\0335P"; | |
1576 | } | |
1577 | return "\033O5P"; | |
1578 | } | |
1579 | ||
1580 | if (keypress.equals(kbCtrlF2)) { | |
1581 | // Control PF2 | |
1582 | if (vt52Mode) { | |
1583 | return "\0335Q"; | |
1584 | } | |
1585 | return "\033O5Q"; | |
1586 | } | |
1587 | ||
1588 | if (keypress.equals(kbCtrlF3)) { | |
1589 | // Control PF3 | |
1590 | if (vt52Mode) { | |
1591 | return "\0335R"; | |
1592 | } | |
1593 | return "\033O5R"; | |
1594 | } | |
1595 | ||
1596 | if (keypress.equals(kbCtrlF4)) { | |
1597 | // Control PF4 | |
1598 | if (vt52Mode) { | |
1599 | return "\0335S"; | |
1600 | } | |
1601 | return "\033O5S"; | |
1602 | } | |
1603 | ||
1604 | if (keypress.equals(kbCtrlF5)) { | |
1605 | // Control F5 | |
1606 | return "\033[15;5~"; | |
1607 | } | |
1608 | ||
1609 | if (keypress.equals(kbCtrlF6)) { | |
1610 | // Control F6 | |
1611 | return "\033[17;5~"; | |
1612 | } | |
1613 | ||
1614 | if (keypress.equals(kbCtrlF7)) { | |
1615 | // Control F7 | |
1616 | return "\033[18;5~"; | |
1617 | } | |
1618 | ||
1619 | if (keypress.equals(kbCtrlF8)) { | |
1620 | // Control F8 | |
1621 | return "\033[19;5~"; | |
1622 | } | |
1623 | ||
1624 | if (keypress.equals(kbCtrlF9)) { | |
1625 | // Control F9 | |
1626 | return "\033[20;5~"; | |
1627 | } | |
1628 | ||
1629 | if (keypress.equals(kbCtrlF10)) { | |
1630 | // Control F10 | |
1631 | return "\033[21;5~"; | |
1632 | } | |
1633 | ||
1634 | if (keypress.equals(kbCtrlF11)) { | |
1635 | // Control F11 | |
1636 | return "\033[23;5~"; | |
1637 | } | |
1638 | ||
1639 | if (keypress.equals(kbCtrlF12)) { | |
1640 | // Control F12 | |
1641 | return "\033[24;5~"; | |
1642 | } | |
1643 | ||
1644 | if (keypress.equals(kbPgUp)) { | |
1645 | // Page Up | |
1646 | return "\033[5~"; | |
1647 | } | |
1648 | ||
1649 | if (keypress.equals(kbPgDn)) { | |
1650 | // Page Down | |
1651 | return "\033[6~"; | |
1652 | } | |
1653 | ||
1654 | if (keypress.equals(kbIns)) { | |
1655 | // Ins | |
1656 | return "\033[2~"; | |
1657 | } | |
1658 | ||
1659 | if (keypress.equals(kbShiftIns)) { | |
1660 | // This is what xterm sends for SHIFT-INS | |
1661 | return "\033[2;2~"; | |
1662 | // This is what xterm sends for CTRL-INS | |
1663 | // return "\033[2;5~"; | |
1664 | } | |
1665 | ||
1666 | if (keypress.equals(kbShiftDel)) { | |
1667 | // This is what xterm sends for SHIFT-DEL | |
1668 | return "\033[3;2~"; | |
1669 | // This is what xterm sends for CTRL-DEL | |
1670 | // return "\033[3;5~"; | |
1671 | } | |
1672 | ||
1673 | if (keypress.equals(kbDel)) { | |
1674 | // Delete sends real delete for VTxxx | |
1675 | return "\177"; | |
1676 | // return "\033[3~"; | |
1677 | } | |
1678 | ||
1679 | if (keypress.equals(kbEnter)) { | |
1680 | return "\015"; | |
1681 | } | |
1682 | ||
1683 | if (keypress.equals(kbEsc)) { | |
1684 | return "\033"; | |
1685 | } | |
1686 | ||
1687 | if (keypress.equals(kbAltEsc)) { | |
1688 | return "\033\033"; | |
1689 | } | |
1690 | ||
1691 | if (keypress.equals(kbTab)) { | |
1692 | return "\011"; | |
1693 | } | |
1694 | ||
1695 | // Non-alt, non-ctrl characters | |
7c870d89 | 1696 | if (!keypress.isFnKey()) { |
34a42e78 | 1697 | StringBuilder sb = new StringBuilder(); |
7c870d89 | 1698 | sb.append(keypress.getChar()); |
34a42e78 KL |
1699 | return sb.toString(); |
1700 | } | |
1701 | return ""; | |
1702 | } | |
1703 | ||
1704 | /** | |
1705 | * Map a symbol in any one of the VT100/VT220 character sets to a Unicode | |
1706 | * symbol. | |
1707 | * | |
1708 | * @param ch 8-bit character from the remote side | |
1709 | * @param charsetGl character set defined for GL | |
1710 | * @param charsetGr character set defined for GR | |
1711 | * @return character to display on the screen | |
1712 | */ | |
1713 | private char mapCharacterCharset(final char ch, | |
1714 | final CharacterSet charsetGl, | |
1715 | final CharacterSet charsetGr) { | |
1716 | ||
1717 | int lookupChar = ch; | |
1718 | CharacterSet lookupCharset = charsetGl; | |
1719 | ||
1720 | if (ch >= 0x80) { | |
1721 | assert ((type == DeviceType.VT220) || (type == DeviceType.XTERM)); | |
1722 | lookupCharset = charsetGr; | |
1723 | lookupChar &= 0x7F; | |
1724 | } | |
1725 | ||
1726 | switch (lookupCharset) { | |
1727 | ||
1728 | case DRAWING: | |
1729 | return DECCharacterSets.SPECIAL_GRAPHICS[lookupChar]; | |
1730 | ||
1731 | case UK: | |
1732 | return DECCharacterSets.UK[lookupChar]; | |
1733 | ||
1734 | case US: | |
1735 | return DECCharacterSets.US_ASCII[lookupChar]; | |
1736 | ||
1737 | case NRC_DUTCH: | |
1738 | return DECCharacterSets.NL[lookupChar]; | |
1739 | ||
1740 | case NRC_FINNISH: | |
1741 | return DECCharacterSets.FI[lookupChar]; | |
1742 | ||
1743 | case NRC_FRENCH: | |
1744 | return DECCharacterSets.FR[lookupChar]; | |
1745 | ||
1746 | case NRC_FRENCH_CA: | |
1747 | return DECCharacterSets.FR_CA[lookupChar]; | |
1748 | ||
1749 | case NRC_GERMAN: | |
1750 | return DECCharacterSets.DE[lookupChar]; | |
1751 | ||
1752 | case NRC_ITALIAN: | |
1753 | return DECCharacterSets.IT[lookupChar]; | |
1754 | ||
1755 | case NRC_NORWEGIAN: | |
1756 | return DECCharacterSets.NO[lookupChar]; | |
1757 | ||
1758 | case NRC_SPANISH: | |
1759 | return DECCharacterSets.ES[lookupChar]; | |
1760 | ||
1761 | case NRC_SWEDISH: | |
1762 | return DECCharacterSets.SV[lookupChar]; | |
1763 | ||
1764 | case NRC_SWISS: | |
1765 | return DECCharacterSets.SWISS[lookupChar]; | |
1766 | ||
1767 | case DEC_SUPPLEMENTAL: | |
1768 | return DECCharacterSets.DEC_SUPPLEMENTAL[lookupChar]; | |
1769 | ||
1770 | case VT52_GRAPHICS: | |
1771 | return DECCharacterSets.VT52_SPECIAL_GRAPHICS[lookupChar]; | |
1772 | ||
1773 | case ROM: | |
1774 | return DECCharacterSets.US_ASCII[lookupChar]; | |
1775 | ||
1776 | case ROM_SPECIAL: | |
1777 | return DECCharacterSets.US_ASCII[lookupChar]; | |
1778 | ||
1779 | default: | |
1780 | throw new IllegalArgumentException("Invalid character set value: " | |
1781 | + lookupCharset); | |
1782 | } | |
1783 | } | |
1784 | ||
1785 | /** | |
1786 | * Map an 8-bit byte into a printable character. | |
1787 | * | |
1788 | * @param ch either 8-bit or Unicode character from the remote side | |
1789 | * @return character to display on the screen | |
1790 | */ | |
1791 | private char mapCharacter(final char ch) { | |
1792 | if (ch >= 0x100) { | |
1793 | // Unicode character, just return it | |
1794 | return ch; | |
1795 | } | |
1796 | ||
1797 | CharacterSet charsetGl = currentState.g0Charset; | |
1798 | CharacterSet charsetGr = currentState.grCharset; | |
1799 | ||
1800 | if (vt52Mode == true) { | |
1801 | if (shiftOut == true) { | |
1802 | // Shifted out character, pull from VT52 graphics | |
1803 | charsetGl = currentState.g1Charset; | |
1804 | charsetGr = CharacterSet.US; | |
1805 | } else { | |
1806 | // Normal | |
1807 | charsetGl = currentState.g0Charset; | |
1808 | charsetGr = CharacterSet.US; | |
1809 | } | |
1810 | ||
1811 | // Pull the character | |
1812 | return mapCharacterCharset(ch, charsetGl, charsetGr); | |
1813 | } | |
1814 | ||
1815 | // shiftOout | |
1816 | if (shiftOut == true) { | |
1817 | // Shifted out character, pull from G1 | |
1818 | charsetGl = currentState.g1Charset; | |
1819 | charsetGr = currentState.grCharset; | |
1820 | ||
1821 | // Pull the character | |
1822 | return mapCharacterCharset(ch, charsetGl, charsetGr); | |
1823 | } | |
1824 | ||
1825 | // SS2 | |
1826 | if (singleshift == Singleshift.SS2) { | |
1827 | ||
1828 | singleshift = Singleshift.NONE; | |
1829 | ||
1830 | // Shifted out character, pull from G2 | |
1831 | charsetGl = currentState.g2Charset; | |
1832 | charsetGr = currentState.grCharset; | |
1833 | } | |
1834 | ||
1835 | // SS3 | |
1836 | if (singleshift == Singleshift.SS3) { | |
1837 | ||
1838 | singleshift = Singleshift.NONE; | |
1839 | ||
1840 | // Shifted out character, pull from G3 | |
1841 | charsetGl = currentState.g3Charset; | |
1842 | charsetGr = currentState.grCharset; | |
1843 | } | |
1844 | ||
1845 | if ((type == DeviceType.VT220) || (type == DeviceType.XTERM)) { | |
1846 | // Check for locking shift | |
1847 | ||
1848 | switch (currentState.glLockshift) { | |
1849 | ||
1850 | case G1_GR: | |
1851 | assert (false); | |
1852 | ||
1853 | case G2_GR: | |
1854 | assert (false); | |
1855 | ||
1856 | case G3_GR: | |
1857 | assert (false); | |
1858 | ||
1859 | case G2_GL: | |
1860 | // LS2 | |
1861 | charsetGl = currentState.g2Charset; | |
1862 | break; | |
1863 | ||
1864 | case G3_GL: | |
1865 | // LS3 | |
1866 | charsetGl = currentState.g3Charset; | |
1867 | break; | |
1868 | ||
1869 | case NONE: | |
1870 | // Normal | |
1871 | charsetGl = currentState.g0Charset; | |
1872 | break; | |
1873 | } | |
1874 | ||
1875 | switch (currentState.grLockshift) { | |
1876 | ||
1877 | case G2_GL: | |
1878 | assert (false); | |
1879 | ||
1880 | case G3_GL: | |
1881 | assert (false); | |
1882 | ||
1883 | case G1_GR: | |
1884 | // LS1R | |
1885 | charsetGr = currentState.g1Charset; | |
1886 | break; | |
1887 | ||
1888 | case G2_GR: | |
1889 | // LS2R | |
1890 | charsetGr = currentState.g2Charset; | |
1891 | break; | |
1892 | ||
1893 | case G3_GR: | |
1894 | // LS3R | |
1895 | charsetGr = currentState.g3Charset; | |
1896 | break; | |
1897 | ||
1898 | case NONE: | |
1899 | // Normal | |
1900 | charsetGr = CharacterSet.DEC_SUPPLEMENTAL; | |
1901 | break; | |
1902 | } | |
1903 | ||
1904 | ||
1905 | } | |
1906 | ||
1907 | // Pull the character | |
1908 | return mapCharacterCharset(ch, charsetGl, charsetGr); | |
1909 | } | |
1910 | ||
1911 | /** | |
1912 | * Scroll the text within a scrolling region up n lines. | |
1913 | * | |
1914 | * @param regionTop top row of the scrolling region | |
1915 | * @param regionBottom bottom row of the scrolling region | |
1916 | * @param n number of lines to scroll | |
1917 | */ | |
1918 | private void scrollingRegionScrollUp(final int regionTop, | |
1919 | final int regionBottom, final int n) { | |
1920 | ||
1921 | if (regionTop >= regionBottom) { | |
1922 | return; | |
1923 | } | |
1924 | ||
1925 | // Sanity check: see if there will be any characters left after the | |
1926 | // scroll | |
1927 | if (regionBottom + 1 - regionTop <= n) { | |
1928 | // There won't be anything left in the region, so just call | |
1929 | // eraseScreen() and return. | |
1930 | eraseScreen(regionTop, 0, regionBottom, width - 1, false); | |
1931 | return; | |
1932 | } | |
1933 | ||
1934 | int remaining = regionBottom + 1 - regionTop - n; | |
1935 | List<DisplayLine> displayTop = display.subList(0, regionTop); | |
1936 | List<DisplayLine> displayBottom = display.subList(regionBottom + 1, | |
1937 | display.size()); | |
1938 | List<DisplayLine> displayMiddle = display.subList(regionBottom + 1 | |
1939 | - remaining, regionBottom + 1); | |
1940 | display = new LinkedList<DisplayLine>(displayTop); | |
1941 | display.addAll(displayMiddle); | |
1942 | for (int i = 0; i < n; i++) { | |
1943 | DisplayLine line = new DisplayLine(currentState.attr); | |
1944 | line.setReverseColor(reverseVideo); | |
1945 | display.add(line); | |
1946 | } | |
1947 | display.addAll(displayBottom); | |
1948 | ||
1949 | assert (display.size() == height); | |
1950 | } | |
1951 | ||
1952 | /** | |
1953 | * Scroll the text within a scrolling region down n lines. | |
1954 | * | |
1955 | * @param regionTop top row of the scrolling region | |
1956 | * @param regionBottom bottom row of the scrolling region | |
1957 | * @param n number of lines to scroll | |
1958 | */ | |
1959 | private void scrollingRegionScrollDown(final int regionTop, | |
1960 | final int regionBottom, final int n) { | |
1961 | ||
1962 | if (regionTop >= regionBottom) { | |
1963 | return; | |
1964 | } | |
1965 | ||
1966 | // Sanity check: see if there will be any characters left after the | |
1967 | // scroll | |
1968 | if (regionBottom + 1 - regionTop <= n) { | |
1969 | // There won't be anything left in the region, so just call | |
1970 | // eraseScreen() and return. | |
1971 | eraseScreen(regionTop, 0, regionBottom, width - 1, false); | |
1972 | return; | |
1973 | } | |
1974 | ||
1975 | int remaining = regionBottom + 1 - regionTop - n; | |
1976 | List<DisplayLine> displayTop = display.subList(0, regionTop); | |
1977 | List<DisplayLine> displayBottom = display.subList(regionBottom + 1, | |
1978 | display.size()); | |
1979 | List<DisplayLine> displayMiddle = display.subList(regionTop, | |
1980 | regionTop + remaining); | |
1981 | display = new LinkedList<DisplayLine>(displayTop); | |
1982 | for (int i = 0; i < n; i++) { | |
1983 | DisplayLine line = new DisplayLine(currentState.attr); | |
1984 | line.setReverseColor(reverseVideo); | |
1985 | display.add(line); | |
1986 | } | |
1987 | display.addAll(displayMiddle); | |
1988 | display.addAll(displayBottom); | |
1989 | ||
1990 | assert (display.size() == height); | |
1991 | } | |
1992 | ||
1993 | /** | |
1994 | * Process a control character. | |
1995 | * | |
1996 | * @param ch 8-bit character from the remote side | |
1997 | */ | |
1998 | private void handleControlChar(final char ch) { | |
1999 | assert ((ch <= 0x1F) || ((ch >= 0x7F) && (ch <= 0x9F))); | |
2000 | ||
2001 | switch (ch) { | |
2002 | ||
2003 | case 0x00: | |
2004 | // NUL - discard | |
2005 | return; | |
2006 | ||
2007 | case 0x05: | |
2008 | // ENQ | |
2009 | ||
2010 | // Transmit the answerback message. | |
2011 | // Not supported | |
2012 | break; | |
2013 | ||
2014 | case 0x07: | |
2015 | // BEL | |
2016 | // Not supported | |
2017 | break; | |
2018 | ||
2019 | case 0x08: | |
2020 | // BS | |
2021 | cursorLeft(1, false); | |
2022 | break; | |
2023 | ||
2024 | case 0x09: | |
2025 | // HT | |
2026 | advanceToNextTabStop(); | |
2027 | break; | |
2028 | ||
2029 | case 0x0A: | |
2030 | // LF | |
2031 | linefeed(); | |
2032 | break; | |
2033 | ||
2034 | case 0x0B: | |
2035 | // VT | |
2036 | linefeed(); | |
2037 | break; | |
2038 | ||
2039 | case 0x0C: | |
2040 | // FF | |
2041 | linefeed(); | |
2042 | break; | |
2043 | ||
2044 | case 0x0D: | |
2045 | // CR | |
2046 | carriageReturn(); | |
2047 | break; | |
2048 | ||
2049 | case 0x0E: | |
2050 | // SO | |
2051 | shiftOut = true; | |
2052 | currentState.glLockshift = LockshiftMode.NONE; | |
2053 | break; | |
2054 | ||
2055 | case 0x0F: | |
2056 | // SI | |
2057 | shiftOut = false; | |
2058 | currentState.glLockshift = LockshiftMode.NONE; | |
2059 | break; | |
2060 | ||
2061 | case 0x84: | |
2062 | // IND | |
2063 | ind(); | |
2064 | break; | |
2065 | ||
2066 | case 0x85: | |
2067 | // NEL | |
2068 | nel(); | |
2069 | break; | |
2070 | ||
2071 | case 0x88: | |
2072 | // HTS | |
2073 | hts(); | |
2074 | break; | |
2075 | ||
2076 | case 0x8D: | |
2077 | // RI | |
2078 | ri(); | |
2079 | break; | |
2080 | ||
2081 | case 0x8E: | |
2082 | // SS2 | |
2083 | singleshift = Singleshift.SS2; | |
2084 | break; | |
2085 | ||
2086 | case 0x8F: | |
2087 | // SS3 | |
2088 | singleshift = Singleshift.SS3; | |
2089 | break; | |
2090 | ||
2091 | default: | |
2092 | break; | |
2093 | } | |
2094 | ||
2095 | } | |
2096 | ||
2097 | /** | |
2098 | * Advance the cursor to the next tab stop. | |
2099 | */ | |
2100 | private void advanceToNextTabStop() { | |
2101 | if (tabStops.size() == 0) { | |
2102 | // Go to the rightmost column | |
2103 | cursorRight(rightMargin - currentState.cursorX, false); | |
2104 | return; | |
2105 | } | |
2106 | for (Integer stop: tabStops) { | |
2107 | if (stop > currentState.cursorX) { | |
2108 | cursorRight(stop - currentState.cursorX, false); | |
2109 | return; | |
2110 | } | |
2111 | } | |
2112 | /* | |
2113 | * We got here, meaning there isn't a tab stop beyond the current | |
2114 | * cursor position. Place the cursor of the right-most edge of the | |
2115 | * screen. | |
2116 | */ | |
2117 | cursorRight(rightMargin - currentState.cursorX, false); | |
2118 | } | |
2119 | ||
2120 | /** | |
2121 | * Save a character into the collect buffer. | |
2122 | * | |
2123 | * @param ch character to save | |
2124 | */ | |
2125 | private void collect(final char ch) { | |
bd8d51fa | 2126 | collectBuffer.append(ch); |
34a42e78 KL |
2127 | } |
2128 | ||
2129 | /** | |
2130 | * Save a byte into the CSI parameters buffer. | |
2131 | * | |
2132 | * @param ch byte to save | |
2133 | */ | |
2134 | private void param(final byte ch) { | |
2135 | if (csiParams.size() == 0) { | |
2136 | csiParams.add(new Integer(0)); | |
2137 | } | |
2138 | Integer x = csiParams.get(csiParams.size() - 1); | |
2139 | if ((ch >= '0') && (ch <= '9')) { | |
2140 | x *= 10; | |
2141 | x += (ch - '0'); | |
2142 | csiParams.set(csiParams.size() - 1, x); | |
2143 | } | |
2144 | ||
2145 | if (ch == ';') { | |
2146 | csiParams.add(new Integer(0)); | |
2147 | } | |
2148 | } | |
2149 | ||
2150 | /** | |
2151 | * Get a CSI parameter value, with a default. | |
2152 | * | |
2153 | * @param position parameter index. 0 is the first parameter. | |
2154 | * @param defaultValue value to use if csiParams[position] doesn't exist | |
2155 | * @return parameter value | |
2156 | */ | |
2157 | private int getCsiParam(final int position, final int defaultValue) { | |
2158 | if (csiParams.size() < position + 1) { | |
2159 | return defaultValue; | |
2160 | } | |
2161 | return csiParams.get(position).intValue(); | |
2162 | } | |
2163 | ||
2164 | /** | |
2165 | * Get a CSI parameter value, clamped to within min/max. | |
2166 | * | |
2167 | * @param position parameter index. 0 is the first parameter. | |
2168 | * @param defaultValue value to use if csiParams[position] doesn't exist | |
2169 | * @param minValue minimum value inclusive | |
2170 | * @param maxValue maximum value inclusive | |
2171 | * @return parameter value | |
2172 | */ | |
2173 | private int getCsiParam(final int position, final int defaultValue, | |
2174 | final int minValue, final int maxValue) { | |
2175 | ||
2176 | assert (minValue <= maxValue); | |
2177 | int value = getCsiParam(position, defaultValue); | |
2178 | if (value < minValue) { | |
2179 | value = minValue; | |
2180 | } | |
2181 | if (value > maxValue) { | |
2182 | value = maxValue; | |
2183 | } | |
2184 | return value; | |
2185 | } | |
2186 | ||
2187 | /** | |
329fd62e KL |
2188 | * Set or unset a toggle. |
2189 | * | |
2190 | * @param value true for set ('h'), false for reset ('l') | |
34a42e78 KL |
2191 | */ |
2192 | private void setToggle(final boolean value) { | |
2193 | boolean decPrivateModeFlag = false; | |
bd8d51fa KL |
2194 | for (int i = 0; i < collectBuffer.length(); i++) { |
2195 | if (collectBuffer.charAt(i) == '?') { | |
34a42e78 | 2196 | decPrivateModeFlag = true; |
bd8d51fa | 2197 | break; |
34a42e78 KL |
2198 | } |
2199 | } | |
2200 | ||
2201 | for (Integer i: csiParams) { | |
2202 | ||
2203 | switch (i) { | |
2204 | ||
2205 | case 1: | |
2206 | if (decPrivateModeFlag == true) { | |
2207 | // DECCKM | |
2208 | if (value == true) { | |
2209 | // Use application arrow keys | |
2210 | arrowKeyMode = ArrowKeyMode.VT100; | |
2211 | } else { | |
2212 | // Use ANSI arrow keys | |
2213 | arrowKeyMode = ArrowKeyMode.ANSI; | |
2214 | } | |
2215 | } | |
2216 | break; | |
2217 | case 2: | |
2218 | if (decPrivateModeFlag == true) { | |
2219 | if (value == false) { | |
2220 | ||
2221 | // DECANM | |
2222 | vt52Mode = true; | |
2223 | arrowKeyMode = ArrowKeyMode.VT52; | |
2224 | ||
2225 | /* | |
2226 | * From the VT102 docs: "You use ANSI mode to select | |
2227 | * most terminal features; the terminal uses the same | |
2228 | * features when it switches to VT52 mode. You | |
2229 | * cannot, however, change most of these features in | |
2230 | * VT52 mode." | |
2231 | * | |
2232 | * In other words, do not reset any other attributes | |
2233 | * when switching between VT52 submode and ANSI. | |
2234 | * | |
2235 | * HOWEVER, the real vt100 does switch the character | |
2236 | * set according to Usenet. | |
2237 | */ | |
2238 | currentState.g0Charset = CharacterSet.US; | |
2239 | currentState.g1Charset = CharacterSet.DRAWING; | |
2240 | shiftOut = false; | |
2241 | ||
2242 | if ((type == DeviceType.VT220) | |
2243 | || (type == DeviceType.XTERM)) { | |
2244 | ||
2245 | // VT52 mode is explicitly 7-bit | |
2246 | s8c1t = false; | |
2247 | singleshift = Singleshift.NONE; | |
2248 | } | |
2249 | } | |
2250 | } else { | |
2251 | // KAM | |
2252 | if (value == true) { | |
2253 | // Turn off keyboard | |
2254 | // Not supported | |
2255 | } else { | |
2256 | // Turn on keyboard | |
2257 | // Not supported | |
2258 | } | |
2259 | } | |
2260 | break; | |
2261 | case 3: | |
2262 | if (decPrivateModeFlag == true) { | |
2263 | // DECCOLM | |
2264 | if (value == true) { | |
2265 | // 132 columns | |
2266 | columns132 = true; | |
2267 | rightMargin = 131; | |
2268 | } else { | |
2269 | // 80 columns | |
2270 | columns132 = false; | |
2271 | rightMargin = 79; | |
2272 | } | |
2273 | width = rightMargin + 1; | |
2274 | // Entire screen is cleared, and scrolling region is | |
2275 | // reset | |
2276 | eraseScreen(0, 0, height - 1, width - 1, false); | |
2277 | scrollRegionTop = 0; | |
2278 | scrollRegionBottom = height - 1; | |
2279 | // Also home the cursor | |
2280 | cursorPosition(0, 0); | |
2281 | } | |
2282 | break; | |
2283 | case 4: | |
2284 | if (decPrivateModeFlag == true) { | |
2285 | // DECSCLM | |
2286 | if (value == true) { | |
2287 | // Smooth scroll | |
2288 | // Not supported | |
2289 | } else { | |
2290 | // Jump scroll | |
2291 | // Not supported | |
2292 | } | |
2293 | } else { | |
2294 | // IRM | |
2295 | if (value == true) { | |
2296 | insertMode = true; | |
2297 | } else { | |
2298 | insertMode = false; | |
2299 | } | |
2300 | } | |
2301 | break; | |
2302 | case 5: | |
2303 | if (decPrivateModeFlag == true) { | |
2304 | // DECSCNM | |
2305 | if (value == true) { | |
2306 | /* | |
2307 | * Set selects reverse screen, a white screen | |
2308 | * background with black characters. | |
2309 | */ | |
2310 | if (reverseVideo != true) { | |
2311 | /* | |
2312 | * If in normal video, switch it back | |
2313 | */ | |
2314 | invertDisplayColors(); | |
2315 | } | |
2316 | reverseVideo = true; | |
2317 | } else { | |
2318 | /* | |
2319 | * Reset selects normal screen, a black screen | |
2320 | * background with white characters. | |
2321 | */ | |
2322 | if (reverseVideo == true) { | |
2323 | /* | |
2324 | * If in reverse video already, switch it back | |
2325 | */ | |
2326 | invertDisplayColors(); | |
2327 | } | |
2328 | reverseVideo = false; | |
2329 | } | |
2330 | } | |
2331 | break; | |
2332 | case 6: | |
2333 | if (decPrivateModeFlag == true) { | |
2334 | // DECOM | |
2335 | if (value == true) { | |
2336 | // Origin is relative to scroll region cursor. | |
2337 | // Cursor can NEVER leave scrolling region. | |
2338 | currentState.originMode = true; | |
2339 | cursorPosition(0, 0); | |
2340 | } else { | |
2341 | // Origin is absolute to entire screen. Cursor can | |
2342 | // leave the scrolling region via cup() and hvp(). | |
2343 | currentState.originMode = false; | |
2344 | cursorPosition(0, 0); | |
2345 | } | |
2346 | } | |
2347 | break; | |
2348 | case 7: | |
2349 | if (decPrivateModeFlag == true) { | |
2350 | // DECAWM | |
2351 | if (value == true) { | |
2352 | // Turn linewrap on | |
2353 | currentState.lineWrap = true; | |
2354 | } else { | |
2355 | // Turn linewrap off | |
2356 | currentState.lineWrap = false; | |
2357 | } | |
2358 | } | |
2359 | break; | |
2360 | case 8: | |
2361 | if (decPrivateModeFlag == true) { | |
2362 | // DECARM | |
2363 | if (value == true) { | |
2364 | // Keyboard auto-repeat on | |
2365 | // Not supported | |
2366 | } else { | |
2367 | // Keyboard auto-repeat off | |
2368 | // Not supported | |
2369 | } | |
2370 | } | |
2371 | break; | |
2372 | case 12: | |
2373 | if (decPrivateModeFlag == false) { | |
2374 | // SRM | |
2375 | if (value == true) { | |
2376 | // Local echo off | |
2377 | fullDuplex = true; | |
2378 | } else { | |
2379 | // Local echo on | |
2380 | fullDuplex = false; | |
2381 | } | |
2382 | } | |
2383 | break; | |
2384 | case 18: | |
2385 | if (decPrivateModeFlag == true) { | |
2386 | // DECPFF | |
2387 | // Not supported | |
2388 | } | |
2389 | break; | |
2390 | case 19: | |
2391 | if (decPrivateModeFlag == true) { | |
2392 | // DECPEX | |
2393 | // Not supported | |
2394 | } | |
2395 | break; | |
2396 | case 20: | |
2397 | if (decPrivateModeFlag == false) { | |
2398 | // LNM | |
2399 | if (value == true) { | |
2400 | /* | |
2401 | * Set causes a received linefeed, form feed, or | |
2402 | * vertical tab to move cursor to first column of | |
2403 | * next line. RETURN transmits both a carriage return | |
2404 | * and linefeed. This selection is also called new | |
2405 | * line option. | |
2406 | */ | |
2407 | newLineMode = true; | |
2408 | } else { | |
2409 | /* | |
2410 | * Reset causes a received linefeed, form feed, or | |
2411 | * vertical tab to move cursor to next line in | |
2412 | * current column. RETURN transmits a carriage | |
2413 | * return. | |
2414 | */ | |
2415 | newLineMode = false; | |
2416 | } | |
2417 | } | |
2418 | break; | |
2419 | ||
2420 | case 25: | |
2421 | if ((type == DeviceType.VT220) || (type == DeviceType.XTERM)) { | |
2422 | if (decPrivateModeFlag == true) { | |
2423 | // DECTCEM | |
2424 | if (value == true) { | |
2425 | // Visible cursor | |
2426 | cursorVisible = true; | |
2427 | } else { | |
2428 | // Invisible cursor | |
2429 | cursorVisible = false; | |
2430 | } | |
2431 | } | |
2432 | } | |
2433 | break; | |
2434 | ||
2435 | case 42: | |
2436 | if ((type == DeviceType.VT220) || (type == DeviceType.XTERM)) { | |
2437 | if (decPrivateModeFlag == true) { | |
2438 | // DECNRCM | |
2439 | if (value == true) { | |
2440 | // Select national mode NRC | |
2441 | // Not supported | |
2442 | } else { | |
2443 | // Select multi-national mode | |
2444 | // Not supported | |
2445 | } | |
2446 | } | |
2447 | } | |
2448 | ||
2449 | break; | |
2450 | ||
bd8d51fa KL |
2451 | case 1000: |
2452 | if ((type == DeviceType.XTERM) | |
2453 | && (decPrivateModeFlag == true) | |
2454 | ) { | |
2455 | // Mouse: normal tracking mode | |
2456 | if (value == true) { | |
2457 | mouseProtocol = MouseProtocol.NORMAL; | |
2458 | } else { | |
2459 | mouseProtocol = MouseProtocol.OFF; | |
2460 | } | |
2461 | } | |
2462 | break; | |
2463 | ||
2464 | case 1002: | |
2465 | if ((type == DeviceType.XTERM) | |
2466 | && (decPrivateModeFlag == true) | |
2467 | ) { | |
2468 | // Mouse: normal tracking mode | |
2469 | if (value == true) { | |
2470 | mouseProtocol = MouseProtocol.BUTTONEVENT; | |
2471 | } else { | |
2472 | mouseProtocol = MouseProtocol.OFF; | |
2473 | } | |
2474 | } | |
2475 | break; | |
2476 | ||
2477 | case 1003: | |
2478 | if ((type == DeviceType.XTERM) | |
2479 | && (decPrivateModeFlag == true) | |
2480 | ) { | |
2481 | // Mouse: Any-event tracking mode | |
2482 | if (value == true) { | |
2483 | mouseProtocol = MouseProtocol.ANYEVENT; | |
2484 | } else { | |
2485 | mouseProtocol = MouseProtocol.OFF; | |
2486 | } | |
2487 | } | |
2488 | break; | |
2489 | ||
2490 | case 1005: | |
2491 | if ((type == DeviceType.XTERM) | |
2492 | && (decPrivateModeFlag == true) | |
2493 | ) { | |
2494 | // Mouse: UTF-8 coordinates | |
2495 | if (value == true) { | |
2496 | mouseEncoding = MouseEncoding.UTF8; | |
2497 | } else { | |
2498 | mouseEncoding = MouseEncoding.X10; | |
2499 | } | |
2500 | } | |
2501 | break; | |
2502 | ||
b5f2a6db KL |
2503 | case 1006: |
2504 | if ((type == DeviceType.XTERM) | |
2505 | && (decPrivateModeFlag == true) | |
2506 | ) { | |
2507 | // Mouse: SGR coordinates | |
2508 | if (value == true) { | |
2509 | mouseEncoding = MouseEncoding.SGR; | |
2510 | } else { | |
2511 | mouseEncoding = MouseEncoding.X10; | |
2512 | } | |
2513 | } | |
2514 | break; | |
2515 | ||
34a42e78 KL |
2516 | default: |
2517 | break; | |
2518 | ||
2519 | } | |
2520 | } | |
2521 | } | |
2522 | ||
2523 | /** | |
2524 | * DECSC - Save cursor. | |
2525 | */ | |
2526 | private void decsc() { | |
2527 | savedState.setTo(currentState); | |
2528 | } | |
2529 | ||
2530 | /** | |
2531 | * DECRC - Restore cursor. | |
2532 | */ | |
2533 | private void decrc() { | |
2534 | currentState.setTo(savedState); | |
2535 | } | |
2536 | ||
2537 | /** | |
2538 | * IND - Index. | |
2539 | */ | |
2540 | private void ind() { | |
2541 | // Move the cursor and scroll if necessary. If at the bottom line | |
2542 | // already, a scroll up is supposed to be performed. | |
2543 | if (currentState.cursorY == scrollRegionBottom) { | |
2544 | scrollingRegionScrollUp(scrollRegionTop, scrollRegionBottom, 1); | |
2545 | } | |
2546 | cursorDown(1, true); | |
2547 | } | |
2548 | ||
2549 | /** | |
2550 | * RI - Reverse index. | |
2551 | */ | |
2552 | private void ri() { | |
2553 | // Move the cursor and scroll if necessary. If at the top line | |
2554 | // already, a scroll down is supposed to be performed. | |
2555 | if (currentState.cursorY == scrollRegionTop) { | |
2556 | scrollingRegionScrollDown(scrollRegionTop, scrollRegionBottom, 1); | |
2557 | } | |
2558 | cursorUp(1, true); | |
2559 | } | |
2560 | ||
2561 | /** | |
2562 | * NEL - Next line. | |
2563 | */ | |
2564 | private void nel() { | |
2565 | // Move the cursor and scroll if necessary. If at the bottom line | |
2566 | // already, a scroll up is supposed to be performed. | |
2567 | if (currentState.cursorY == scrollRegionBottom) { | |
2568 | scrollingRegionScrollUp(scrollRegionTop, scrollRegionBottom, 1); | |
2569 | } | |
2570 | cursorDown(1, true); | |
2571 | ||
2572 | // Reset to the beginning of the next line | |
2573 | currentState.cursorX = 0; | |
2574 | } | |
2575 | ||
2576 | /** | |
2577 | * DECKPAM - Keypad application mode. | |
2578 | */ | |
2579 | private void deckpam() { | |
2580 | keypadMode = KeypadMode.Application; | |
2581 | } | |
2582 | ||
2583 | /** | |
2584 | * DECKPNM - Keypad numeric mode. | |
2585 | */ | |
2586 | private void deckpnm() { | |
2587 | keypadMode = KeypadMode.Numeric; | |
2588 | } | |
2589 | ||
2590 | /** | |
2591 | * Move up n spaces. | |
2592 | * | |
2593 | * @param n number of spaces to move | |
2594 | * @param honorScrollRegion if true, then do nothing if the cursor is | |
2595 | * outside the scrolling region | |
2596 | */ | |
2597 | private void cursorUp(final int n, final boolean honorScrollRegion) { | |
2598 | int top; | |
2599 | ||
2600 | /* | |
2601 | * Special case: if a user moves the cursor from the right margin, we | |
2602 | * have to reset the VT100 right margin flag. | |
2603 | */ | |
2604 | if (n > 0) { | |
2605 | wrapLineFlag = false; | |
2606 | } | |
2607 | ||
2608 | for (int i = 0; i < n; i++) { | |
2609 | if (honorScrollRegion == true) { | |
2610 | // Honor the scrolling region | |
2611 | if ((currentState.cursorY < scrollRegionTop) | |
2612 | || (currentState.cursorY > scrollRegionBottom) | |
2613 | ) { | |
2614 | // Outside region, do nothing | |
2615 | return; | |
2616 | } | |
2617 | // Inside region, go up | |
2618 | top = scrollRegionTop; | |
2619 | } else { | |
2620 | // Non-scrolling case | |
2621 | top = 0; | |
2622 | } | |
2623 | ||
2624 | if (currentState.cursorY > top) { | |
2625 | currentState.cursorY--; | |
2626 | } | |
2627 | } | |
2628 | } | |
2629 | ||
2630 | /** | |
2631 | * Move down n spaces. | |
2632 | * | |
2633 | * @param n number of spaces to move | |
2634 | * @param honorScrollRegion if true, then do nothing if the cursor is | |
2635 | * outside the scrolling region | |
2636 | */ | |
2637 | private void cursorDown(final int n, final boolean honorScrollRegion) { | |
2638 | int bottom; | |
2639 | ||
2640 | /* | |
2641 | * Special case: if a user moves the cursor from the right margin, we | |
2642 | * have to reset the VT100 right margin flag. | |
2643 | */ | |
2644 | if (n > 0) { | |
2645 | wrapLineFlag = false; | |
2646 | } | |
2647 | ||
2648 | for (int i = 0; i < n; i++) { | |
2649 | ||
2650 | if (honorScrollRegion == true) { | |
2651 | // Honor the scrolling region | |
2652 | if (currentState.cursorY > scrollRegionBottom) { | |
2653 | // Outside region, do nothing | |
2654 | return; | |
2655 | } | |
2656 | // Inside region, go down | |
2657 | bottom = scrollRegionBottom; | |
2658 | } else { | |
2659 | // Non-scrolling case | |
2660 | bottom = height - 1; | |
2661 | } | |
2662 | ||
2663 | if (currentState.cursorY < bottom) { | |
2664 | currentState.cursorY++; | |
2665 | } | |
2666 | } | |
2667 | } | |
2668 | ||
2669 | /** | |
2670 | * Move left n spaces. | |
2671 | * | |
2672 | * @param n number of spaces to move | |
2673 | * @param honorScrollRegion if true, then do nothing if the cursor is | |
2674 | * outside the scrolling region | |
2675 | */ | |
2676 | private void cursorLeft(final int n, final boolean honorScrollRegion) { | |
2677 | /* | |
2678 | * Special case: if a user moves the cursor from the right margin, we | |
2679 | * have to reset the VT100 right margin flag. | |
2680 | */ | |
2681 | if (n > 0) { | |
2682 | wrapLineFlag = false; | |
2683 | } | |
2684 | ||
2685 | for (int i = 0; i < n; i++) { | |
2686 | if (honorScrollRegion == true) { | |
2687 | // Honor the scrolling region | |
2688 | if ((currentState.cursorY < scrollRegionTop) | |
2689 | || (currentState.cursorY > scrollRegionBottom) | |
2690 | ) { | |
2691 | // Outside region, do nothing | |
2692 | return; | |
2693 | } | |
2694 | } | |
2695 | ||
2696 | if (currentState.cursorX > 0) { | |
2697 | currentState.cursorX--; | |
2698 | } | |
2699 | } | |
2700 | } | |
2701 | ||
2702 | /** | |
2703 | * Move right n spaces. | |
2704 | * | |
2705 | * @param n number of spaces to move | |
2706 | * @param honorScrollRegion if true, then do nothing if the cursor is | |
2707 | * outside the scrolling region | |
2708 | */ | |
2709 | private void cursorRight(final int n, final boolean honorScrollRegion) { | |
2710 | int rightMargin = this.rightMargin; | |
2711 | ||
2712 | /* | |
2713 | * Special case: if a user moves the cursor from the right margin, we | |
2714 | * have to reset the VT100 right margin flag. | |
2715 | */ | |
2716 | if (n > 0) { | |
2717 | wrapLineFlag = false; | |
2718 | } | |
2719 | ||
2720 | if (display.get(currentState.cursorY).isDoubleWidth()) { | |
2721 | rightMargin = ((rightMargin + 1) / 2) - 1; | |
2722 | } | |
2723 | ||
2724 | for (int i = 0; i < n; i++) { | |
2725 | if (honorScrollRegion == true) { | |
2726 | // Honor the scrolling region | |
2727 | if ((currentState.cursorY < scrollRegionTop) | |
2728 | || (currentState.cursorY > scrollRegionBottom) | |
2729 | ) { | |
2730 | // Outside region, do nothing | |
2731 | return; | |
2732 | } | |
2733 | } | |
2734 | ||
2735 | if (currentState.cursorX < rightMargin) { | |
2736 | currentState.cursorX++; | |
2737 | } | |
2738 | } | |
2739 | } | |
2740 | ||
2741 | /** | |
2742 | * Move cursor to (col, row) where (0, 0) is the top-left corner. | |
2743 | * | |
2744 | * @param row row to move to | |
2745 | * @param col column to move to | |
2746 | */ | |
2747 | private void cursorPosition(int row, final int col) { | |
2748 | int rightMargin = this.rightMargin; | |
2749 | ||
2750 | assert (col >= 0); | |
2751 | assert (row >= 0); | |
2752 | ||
2753 | if (display.get(currentState.cursorY).isDoubleWidth()) { | |
2754 | rightMargin = ((rightMargin + 1) / 2) - 1; | |
2755 | } | |
2756 | ||
2757 | // Set column number | |
2758 | currentState.cursorX = col; | |
2759 | ||
2760 | // Sanity check, bring column back to margin. | |
2761 | if (currentState.cursorX > rightMargin) { | |
2762 | currentState.cursorX = rightMargin; | |
2763 | } | |
2764 | ||
2765 | // Set row number | |
2766 | if (currentState.originMode == true) { | |
2767 | row += scrollRegionTop; | |
2768 | } | |
2769 | if (currentState.cursorY < row) { | |
2770 | cursorDown(row - currentState.cursorY, false); | |
2771 | } else if (currentState.cursorY > row) { | |
2772 | cursorUp(currentState.cursorY - row, false); | |
2773 | } | |
2774 | ||
2775 | wrapLineFlag = false; | |
2776 | } | |
2777 | ||
2778 | /** | |
2779 | * HTS - Horizontal tabulation set. | |
2780 | */ | |
2781 | private void hts() { | |
2782 | for (Integer stop: tabStops) { | |
2783 | if (stop == currentState.cursorX) { | |
2784 | // Already have a tab stop here | |
2785 | return; | |
2786 | } | |
2787 | } | |
2788 | ||
2789 | // Append a tab stop to the end of the array and resort them | |
2790 | tabStops.add(currentState.cursorX); | |
2791 | Collections.sort(tabStops); | |
2792 | } | |
2793 | ||
2794 | /** | |
2795 | * DECSWL - Single-width line. | |
2796 | */ | |
2797 | private void decswl() { | |
2798 | display.get(currentState.cursorY).setDoubleWidth(false); | |
2799 | display.get(currentState.cursorY).setDoubleHeight(0); | |
2800 | } | |
2801 | ||
2802 | /** | |
2803 | * DECDWL - Double-width line. | |
2804 | */ | |
2805 | private void decdwl() { | |
2806 | display.get(currentState.cursorY).setDoubleWidth(true); | |
2807 | display.get(currentState.cursorY).setDoubleHeight(0); | |
2808 | } | |
2809 | ||
2810 | /** | |
2811 | * DECHDL - Double-height + double-width line. | |
2812 | * | |
2813 | * @param topHalf if true, this sets the row to be the top half row of a | |
2814 | * double-height row | |
2815 | */ | |
2816 | private void dechdl(final boolean topHalf) { | |
2817 | display.get(currentState.cursorY).setDoubleWidth(true); | |
2818 | if (topHalf == true) { | |
2819 | display.get(currentState.cursorY).setDoubleHeight(1); | |
2820 | } else { | |
2821 | display.get(currentState.cursorY).setDoubleHeight(2); | |
2822 | } | |
2823 | } | |
2824 | ||
2825 | /** | |
2826 | * DECALN - Screen alignment display. | |
2827 | */ | |
2828 | private void decaln() { | |
2829 | Cell newCell = new Cell(); | |
2830 | newCell.setChar('E'); | |
2831 | for (DisplayLine line: display) { | |
2832 | for (int i = 0; i < line.length(); i++) { | |
2833 | line.replace(i, newCell); | |
2834 | } | |
2835 | } | |
2836 | } | |
2837 | ||
2838 | /** | |
2839 | * DECSCL - Compatibility level. | |
2840 | */ | |
2841 | private void decscl() { | |
2842 | int i = getCsiParam(0, 0); | |
2843 | int j = getCsiParam(1, 0); | |
2844 | ||
2845 | if (i == 61) { | |
2846 | // Reset fonts | |
2847 | currentState.g0Charset = CharacterSet.US; | |
2848 | currentState.g1Charset = CharacterSet.DRAWING; | |
2849 | s8c1t = false; | |
2850 | } else if (i == 62) { | |
2851 | ||
2852 | if ((j == 0) || (j == 2)) { | |
2853 | s8c1t = true; | |
2854 | } else if (j == 1) { | |
2855 | s8c1t = false; | |
2856 | } | |
2857 | } | |
2858 | } | |
2859 | ||
2860 | /** | |
2861 | * CUD - Cursor down. | |
2862 | */ | |
2863 | private void cud() { | |
2864 | cursorDown(getCsiParam(0, 1, 1, height), true); | |
2865 | } | |
2866 | ||
2867 | /** | |
2868 | * CUF - Cursor forward. | |
2869 | */ | |
2870 | private void cuf() { | |
2871 | cursorRight(getCsiParam(0, 1, 1, rightMargin + 1), true); | |
2872 | } | |
2873 | ||
2874 | /** | |
2875 | * CUB - Cursor backward. | |
2876 | */ | |
2877 | private void cub() { | |
2878 | cursorLeft(getCsiParam(0, 1, 1, currentState.cursorX + 1), true); | |
2879 | } | |
2880 | ||
2881 | /** | |
2882 | * CUU - Cursor up. | |
2883 | */ | |
2884 | private void cuu() { | |
2885 | cursorUp(getCsiParam(0, 1, 1, currentState.cursorY + 1), true); | |
2886 | } | |
2887 | ||
2888 | /** | |
2889 | * CUP - Cursor position. | |
2890 | */ | |
2891 | private void cup() { | |
2892 | cursorPosition(getCsiParam(0, 1, 1, height) - 1, | |
2893 | getCsiParam(1, 1, 1, rightMargin + 1) - 1); | |
2894 | } | |
2895 | ||
2896 | /** | |
2897 | * CNL - Cursor down and to column 1. | |
2898 | */ | |
2899 | private void cnl() { | |
2900 | cursorDown(getCsiParam(0, 1, 1, height), true); | |
2901 | // To column 0 | |
2902 | cursorLeft(currentState.cursorX, true); | |
2903 | } | |
2904 | ||
2905 | /** | |
2906 | * CPL - Cursor up and to column 1. | |
2907 | */ | |
2908 | private void cpl() { | |
2909 | cursorUp(getCsiParam(0, 1, 1, currentState.cursorY + 1), true); | |
2910 | // To column 0 | |
2911 | cursorLeft(currentState.cursorX, true); | |
2912 | } | |
2913 | ||
2914 | /** | |
2915 | * CHA - Cursor to column # in current row. | |
2916 | */ | |
2917 | private void cha() { | |
2918 | cursorPosition(currentState.cursorY, | |
2919 | getCsiParam(0, 1, 1, rightMargin + 1) - 1); | |
2920 | } | |
2921 | ||
2922 | /** | |
2923 | * VPA - Cursor to row #, same column. | |
2924 | */ | |
2925 | private void vpa() { | |
2926 | cursorPosition(getCsiParam(0, 1, 1, height) - 1, | |
2927 | currentState.cursorX); | |
2928 | } | |
2929 | ||
2930 | /** | |
2931 | * ED - Erase in display. | |
2932 | */ | |
2933 | private void ed() { | |
2934 | boolean honorProtected = false; | |
2935 | boolean decPrivateModeFlag = false; | |
2936 | ||
bd8d51fa KL |
2937 | for (int i = 0; i < collectBuffer.length(); i++) { |
2938 | if (collectBuffer.charAt(i) == '?') { | |
34a42e78 | 2939 | decPrivateModeFlag = true; |
bd8d51fa | 2940 | break; |
34a42e78 KL |
2941 | } |
2942 | } | |
2943 | ||
2944 | if (((type == DeviceType.VT220) || (type == DeviceType.XTERM)) | |
2945 | && (decPrivateModeFlag == true) | |
2946 | ) { | |
2947 | honorProtected = true; | |
2948 | } | |
2949 | ||
2950 | int i = getCsiParam(0, 0); | |
2951 | ||
2952 | if (i == 0) { | |
2953 | // Erase from here to end of screen | |
2954 | if (currentState.cursorY < height - 1) { | |
2955 | eraseScreen(currentState.cursorY + 1, 0, height - 1, width - 1, | |
2956 | honorProtected); | |
2957 | } | |
2958 | eraseLine(currentState.cursorX, width - 1, honorProtected); | |
2959 | } else if (i == 1) { | |
2960 | // Erase from beginning of screen to here | |
2961 | eraseScreen(0, 0, currentState.cursorY - 1, width - 1, | |
2962 | honorProtected); | |
2963 | eraseLine(0, currentState.cursorX, honorProtected); | |
2964 | } else if (i == 2) { | |
2965 | // Erase entire screen | |
2966 | eraseScreen(0, 0, height - 1, width - 1, honorProtected); | |
2967 | } | |
2968 | } | |
2969 | ||
2970 | /** | |
2971 | * EL - Erase in line. | |
2972 | */ | |
2973 | private void el() { | |
2974 | boolean honorProtected = false; | |
2975 | boolean decPrivateModeFlag = false; | |
2976 | ||
bd8d51fa KL |
2977 | for (int i = 0; i < collectBuffer.length(); i++) { |
2978 | if (collectBuffer.charAt(i) == '?') { | |
34a42e78 | 2979 | decPrivateModeFlag = true; |
bd8d51fa | 2980 | break; |
34a42e78 KL |
2981 | } |
2982 | } | |
2983 | ||
2984 | if (((type == DeviceType.VT220) || (type == DeviceType.XTERM)) | |
2985 | && (decPrivateModeFlag == true) | |
2986 | ) { | |
2987 | honorProtected = true; | |
2988 | } | |
2989 | ||
2990 | int i = getCsiParam(0, 0); | |
2991 | ||
2992 | if (i == 0) { | |
2993 | // Erase from here to end of line | |
2994 | eraseLine(currentState.cursorX, width - 1, honorProtected); | |
2995 | } else if (i == 1) { | |
2996 | // Erase from beginning of line to here | |
2997 | eraseLine(0, currentState.cursorX, honorProtected); | |
2998 | } else if (i == 2) { | |
2999 | // Erase entire line | |
3000 | eraseLine(0, width - 1, honorProtected); | |
3001 | } | |
3002 | } | |
3003 | ||
3004 | /** | |
3005 | * ECH - Erase # of characters in current row. | |
3006 | */ | |
3007 | private void ech() { | |
3008 | int i = getCsiParam(0, 1, 1, width); | |
3009 | ||
3010 | // Erase from here to i characters | |
3011 | eraseLine(currentState.cursorX, currentState.cursorX + i - 1, false); | |
3012 | } | |
3013 | ||
3014 | /** | |
3015 | * IL - Insert line. | |
3016 | */ | |
3017 | private void il() { | |
3018 | int i = getCsiParam(0, 1); | |
3019 | ||
3020 | if ((currentState.cursorY >= scrollRegionTop) | |
3021 | && (currentState.cursorY <= scrollRegionBottom) | |
3022 | ) { | |
3023 | ||
3024 | // I can get the same effect with a scroll-down | |
3025 | scrollingRegionScrollDown(currentState.cursorY, | |
3026 | scrollRegionBottom, i); | |
3027 | } | |
3028 | } | |
3029 | ||
3030 | /** | |
3031 | * DCH - Delete char. | |
3032 | */ | |
3033 | private void dch() { | |
3034 | int n = getCsiParam(0, 1); | |
3035 | DisplayLine line = display.get(currentState.cursorY); | |
3036 | Cell blank = new Cell(); | |
3037 | for (int i = 0; i < n; i++) { | |
3038 | line.delete(currentState.cursorX, blank); | |
3039 | } | |
3040 | } | |
3041 | ||
3042 | /** | |
3043 | * ICH - Insert blank char at cursor. | |
3044 | */ | |
3045 | private void ich() { | |
3046 | int n = getCsiParam(0, 1); | |
3047 | DisplayLine line = display.get(currentState.cursorY); | |
3048 | Cell blank = new Cell(); | |
3049 | for (int i = 0; i < n; i++) { | |
3050 | line.insert(currentState.cursorX, blank); | |
3051 | } | |
3052 | } | |
3053 | ||
3054 | /** | |
3055 | * DL - Delete line. | |
3056 | */ | |
3057 | private void dl() { | |
3058 | int i = getCsiParam(0, 1); | |
3059 | ||
3060 | if ((currentState.cursorY >= scrollRegionTop) | |
3061 | && (currentState.cursorY <= scrollRegionBottom)) { | |
3062 | ||
3063 | // I can get the same effect with a scroll-down | |
3064 | scrollingRegionScrollUp(currentState.cursorY, | |
3065 | scrollRegionBottom, i); | |
3066 | } | |
3067 | } | |
3068 | ||
3069 | /** | |
3070 | * HVP - Horizontal and vertical position. | |
3071 | */ | |
3072 | private void hvp() { | |
3073 | cup(); | |
3074 | } | |
3075 | ||
3076 | /** | |
3077 | * REP - Repeat character. | |
3078 | */ | |
3079 | private void rep() { | |
3080 | int n = getCsiParam(0, 1); | |
3081 | for (int i = 0; i < n; i++) { | |
3082 | printCharacter(repCh); | |
3083 | } | |
3084 | } | |
3085 | ||
3086 | /** | |
3087 | * SU - Scroll up. | |
3088 | */ | |
3089 | private void su() { | |
3090 | scrollingRegionScrollUp(scrollRegionTop, scrollRegionBottom, | |
3091 | getCsiParam(0, 1, 1, height)); | |
3092 | } | |
3093 | ||
3094 | /** | |
3095 | * SD - Scroll down. | |
3096 | */ | |
3097 | private void sd() { | |
3098 | scrollingRegionScrollDown(scrollRegionTop, scrollRegionBottom, | |
3099 | getCsiParam(0, 1, 1, height)); | |
3100 | } | |
3101 | ||
3102 | /** | |
3103 | * CBT - Go back X tab stops. | |
3104 | */ | |
3105 | private void cbt() { | |
3106 | int tabsToMove = getCsiParam(0, 1); | |
3107 | int tabI; | |
3108 | ||
3109 | for (int i = 0; i < tabsToMove; i++) { | |
3110 | int j = currentState.cursorX; | |
3111 | for (tabI = 0; tabI < tabStops.size(); tabI++) { | |
3112 | if (tabStops.get(tabI) >= currentState.cursorX) { | |
3113 | break; | |
3114 | } | |
3115 | } | |
3116 | tabI--; | |
3117 | if (tabI <= 0) { | |
3118 | j = 0; | |
3119 | } else { | |
3120 | j = tabStops.get(tabI); | |
3121 | } | |
3122 | cursorPosition(currentState.cursorY, j); | |
3123 | } | |
3124 | } | |
3125 | ||
3126 | /** | |
3127 | * CHT - Advance X tab stops. | |
3128 | */ | |
3129 | private void cht() { | |
3130 | int n = getCsiParam(0, 1); | |
3131 | for (int i = 0; i < n; i++) { | |
3132 | advanceToNextTabStop(); | |
3133 | } | |
3134 | } | |
3135 | ||
3136 | /** | |
3137 | * SGR - Select graphics rendition. | |
3138 | */ | |
3139 | private void sgr() { | |
3140 | ||
3141 | if (csiParams.size() == 0) { | |
3142 | currentState.attr.reset(); | |
3143 | return; | |
3144 | } | |
3145 | ||
3146 | for (Integer i: csiParams) { | |
3147 | ||
3148 | switch (i) { | |
3149 | ||
3150 | case 0: | |
3151 | // Normal | |
3152 | currentState.attr.reset(); | |
3153 | break; | |
3154 | ||
3155 | case 1: | |
3156 | // Bold | |
3157 | currentState.attr.setBold(true); | |
3158 | break; | |
3159 | ||
3160 | case 4: | |
3161 | // Underline | |
3162 | currentState.attr.setUnderline(true); | |
3163 | break; | |
3164 | ||
3165 | case 5: | |
3166 | // Blink | |
3167 | currentState.attr.setBlink(true); | |
3168 | break; | |
3169 | ||
3170 | case 7: | |
3171 | // Reverse | |
3172 | currentState.attr.setReverse(true); | |
3173 | break; | |
3174 | ||
3175 | default: | |
3176 | break; | |
3177 | } | |
3178 | ||
3179 | if (type == DeviceType.XTERM) { | |
3180 | ||
3181 | switch (i) { | |
3182 | ||
3183 | case 8: | |
3184 | // Invisible | |
3185 | // TODO | |
3186 | break; | |
3187 | ||
3188 | default: | |
3189 | break; | |
3190 | } | |
3191 | } | |
3192 | ||
3193 | if ((type == DeviceType.VT220) | |
3194 | || (type == DeviceType.XTERM)) { | |
3195 | ||
3196 | switch (i) { | |
3197 | ||
3198 | case 22: | |
3199 | // Normal intensity | |
3200 | currentState.attr.setBold(false); | |
3201 | break; | |
3202 | ||
3203 | case 24: | |
3204 | // No underline | |
3205 | currentState.attr.setUnderline(false); | |
3206 | break; | |
3207 | ||
3208 | case 25: | |
3209 | // No blink | |
3210 | currentState.attr.setBlink(false); | |
3211 | break; | |
3212 | ||
3213 | case 27: | |
3214 | // Un-reverse | |
3215 | currentState.attr.setReverse(false); | |
3216 | break; | |
3217 | ||
3218 | default: | |
3219 | break; | |
3220 | } | |
3221 | } | |
3222 | ||
3223 | // A true VT100/102/220 does not support color, however everyone | |
3224 | // is used to their terminal emulator supporting color so we will | |
3225 | // unconditionally support color for all DeviceType's. | |
3226 | ||
3227 | switch (i) { | |
3228 | ||
3229 | case 30: | |
3230 | // Set black foreground | |
3231 | currentState.attr.setForeColor(Color.BLACK); | |
3232 | break; | |
3233 | case 31: | |
3234 | // Set red foreground | |
3235 | currentState.attr.setForeColor(Color.RED); | |
3236 | break; | |
3237 | case 32: | |
3238 | // Set green foreground | |
3239 | currentState.attr.setForeColor(Color.GREEN); | |
3240 | break; | |
3241 | case 33: | |
3242 | // Set yellow foreground | |
3243 | currentState.attr.setForeColor(Color.YELLOW); | |
3244 | break; | |
3245 | case 34: | |
3246 | // Set blue foreground | |
3247 | currentState.attr.setForeColor(Color.BLUE); | |
3248 | break; | |
3249 | case 35: | |
3250 | // Set magenta foreground | |
3251 | currentState.attr.setForeColor(Color.MAGENTA); | |
3252 | break; | |
3253 | case 36: | |
3254 | // Set cyan foreground | |
3255 | currentState.attr.setForeColor(Color.CYAN); | |
3256 | break; | |
3257 | case 37: | |
3258 | // Set white foreground | |
3259 | currentState.attr.setForeColor(Color.WHITE); | |
3260 | break; | |
3261 | case 38: | |
3262 | // Underscore on, default foreground color | |
3263 | currentState.attr.setUnderline(true); | |
3264 | currentState.attr.setForeColor(Color.WHITE); | |
3265 | break; | |
3266 | case 39: | |
3267 | // Underscore off, default foreground color | |
3268 | currentState.attr.setUnderline(false); | |
3269 | currentState.attr.setForeColor(Color.WHITE); | |
3270 | break; | |
3271 | case 40: | |
3272 | // Set black background | |
3273 | currentState.attr.setBackColor(Color.BLACK); | |
3274 | break; | |
3275 | case 41: | |
3276 | // Set red background | |
3277 | currentState.attr.setBackColor(Color.RED); | |
3278 | break; | |
3279 | case 42: | |
3280 | // Set green background | |
3281 | currentState.attr.setBackColor(Color.GREEN); | |
3282 | break; | |
3283 | case 43: | |
3284 | // Set yellow background | |
3285 | currentState.attr.setBackColor(Color.YELLOW); | |
3286 | break; | |
3287 | case 44: | |
3288 | // Set blue background | |
3289 | currentState.attr.setBackColor(Color.BLUE); | |
3290 | break; | |
3291 | case 45: | |
3292 | // Set magenta background | |
3293 | currentState.attr.setBackColor(Color.MAGENTA); | |
3294 | break; | |
3295 | case 46: | |
3296 | // Set cyan background | |
3297 | currentState.attr.setBackColor(Color.CYAN); | |
3298 | break; | |
3299 | case 47: | |
3300 | // Set white background | |
3301 | currentState.attr.setBackColor(Color.WHITE); | |
3302 | break; | |
3303 | case 49: | |
3304 | // Default background | |
3305 | currentState.attr.setBackColor(Color.BLACK); | |
3306 | break; | |
3307 | ||
3308 | default: | |
3309 | break; | |
3310 | } | |
3311 | } | |
3312 | } | |
3313 | ||
3314 | /** | |
3315 | * DA - Device attributes. | |
3316 | */ | |
3317 | private void da() { | |
3318 | int extendedFlag = 0; | |
3319 | int i = 0; | |
bd8d51fa KL |
3320 | if (collectBuffer.length() > 0) { |
3321 | String args = collectBuffer.substring(1); | |
3322 | if (collectBuffer.charAt(0) == '>') { | |
34a42e78 | 3323 | extendedFlag = 1; |
bd8d51fa | 3324 | if (collectBuffer.length() >= 2) { |
34a42e78 KL |
3325 | i = Integer.parseInt(args.toString()); |
3326 | } | |
bd8d51fa | 3327 | } else if (collectBuffer.charAt(0) == '=') { |
34a42e78 | 3328 | extendedFlag = 2; |
bd8d51fa | 3329 | if (collectBuffer.length() >= 2) { |
34a42e78 KL |
3330 | i = Integer.parseInt(args.toString()); |
3331 | } | |
3332 | } else { | |
3333 | // Unknown code, bail out | |
3334 | return; | |
3335 | } | |
3336 | } | |
3337 | ||
3338 | if ((i != 0) && (i != 1)) { | |
3339 | return; | |
3340 | } | |
3341 | ||
3342 | if ((extendedFlag == 0) && (i == 0)) { | |
3343 | // Send string directly to remote side | |
3344 | writeRemote(deviceTypeResponse()); | |
3345 | return; | |
3346 | } | |
3347 | ||
3348 | if ((type == DeviceType.VT220) || (type == DeviceType.XTERM)) { | |
3349 | ||
3350 | if ((extendedFlag == 1) && (i == 0)) { | |
3351 | /* | |
3352 | * Request "What type of terminal are you, what is your | |
3353 | * firmware version, and what hardware options do you have | |
3354 | * installed?" | |
3355 | * | |
3356 | * Respond: "I am a VT220 (identification code of 1), my | |
3357 | * firmware version is _____ (Pv), and I have _____ Po | |
3358 | * options installed." | |
3359 | * | |
3360 | * (Same as xterm) | |
3361 | * | |
3362 | */ | |
3363 | ||
3364 | if (s8c1t == true) { | |
3365 | writeRemote("\u009b>1;10;0c"); | |
3366 | } else { | |
3367 | writeRemote("\033[>1;10;0c"); | |
3368 | } | |
3369 | } | |
3370 | } | |
3371 | ||
3372 | // VT420 and up | |
3373 | if ((extendedFlag == 2) && (i == 0)) { | |
3374 | ||
3375 | /* | |
3376 | * Request "What is your unit ID?" | |
3377 | * | |
3378 | * Respond: "I was manufactured at site 00 and have a unique ID | |
3379 | * number of 123." | |
3380 | * | |
3381 | */ | |
3382 | writeRemote("\033P!|00010203\033\\"); | |
3383 | } | |
3384 | } | |
3385 | ||
3386 | /** | |
3387 | * DECSTBM - Set top and bottom margins. | |
3388 | */ | |
3389 | private void decstbm() { | |
36338168 | 3390 | boolean decPrivateModeFlag = false; |
34a42e78 | 3391 | |
36338168 KL |
3392 | for (int i = 0; i < collectBuffer.length(); i++) { |
3393 | if (collectBuffer.charAt(i) == '?') { | |
3394 | decPrivateModeFlag = true; | |
3395 | break; | |
3396 | } | |
34a42e78 | 3397 | } |
36338168 KL |
3398 | if (decPrivateModeFlag) { |
3399 | // This could be restore DEC private mode values. | |
3400 | // Ignore it. | |
3401 | } else { | |
3402 | // DECSTBM | |
3403 | int top = getCsiParam(0, 1, 1, height) - 1; | |
3404 | int bottom = getCsiParam(1, height, 1, height) - 1; | |
34a42e78 | 3405 | |
36338168 KL |
3406 | if (top > bottom) { |
3407 | top = bottom; | |
3408 | } | |
3409 | scrollRegionTop = top; | |
3410 | scrollRegionBottom = bottom; | |
3411 | ||
3412 | // Home cursor | |
3413 | cursorPosition(0, 0); | |
3414 | } | |
34a42e78 KL |
3415 | } |
3416 | ||
3417 | /** | |
3418 | * DECREQTPARM - Request terminal parameters. | |
3419 | */ | |
3420 | private void decreqtparm() { | |
3421 | int i = getCsiParam(0, 0); | |
3422 | ||
3423 | if ((i != 0) && (i != 1)) { | |
3424 | return; | |
3425 | } | |
3426 | ||
3427 | String str = ""; | |
3428 | ||
3429 | /* | |
3430 | * Request terminal parameters. | |
3431 | * | |
3432 | * Respond with: | |
3433 | * | |
3434 | * Parity NONE, 8 bits, xmitspeed 38400, recvspeed 38400. | |
3435 | * (CLoCk MULtiplier = 1, STP option flags = 0) | |
3436 | * | |
3437 | * (Same as xterm) | |
3438 | */ | |
3439 | if (((type == DeviceType.VT220) || (type == DeviceType.XTERM)) | |
3440 | && (s8c1t == true) | |
3441 | ) { | |
3442 | str = String.format("\u009b%d;1;1;128;128;1;0x", i + 2); | |
3443 | } else { | |
3444 | str = String.format("\033[%d;1;1;128;128;1;0x", i + 2); | |
3445 | } | |
3446 | writeRemote(str); | |
3447 | } | |
3448 | ||
3449 | /** | |
3450 | * DECSCA - Select Character Attributes. | |
3451 | */ | |
3452 | private void decsca() { | |
3453 | int i = getCsiParam(0, 0); | |
3454 | ||
3455 | if ((i == 0) || (i == 2)) { | |
3456 | // Protect mode OFF | |
3457 | currentState.attr.setProtect(false); | |
3458 | } | |
3459 | if (i == 1) { | |
3460 | // Protect mode ON | |
3461 | currentState.attr.setProtect(true); | |
3462 | } | |
3463 | } | |
3464 | ||
3465 | /** | |
3466 | * DECSTR - Soft Terminal Reset. | |
3467 | */ | |
3468 | private void decstr() { | |
3469 | // Do exactly like RIS - Reset to initial state | |
3470 | reset(); | |
3471 | // Do I clear screen too? I think so... | |
3472 | eraseScreen(0, 0, height - 1, width - 1, false); | |
3473 | cursorPosition(0, 0); | |
3474 | } | |
3475 | ||
3476 | /** | |
3477 | * DSR - Device status report. | |
3478 | */ | |
3479 | private void dsr() { | |
3480 | boolean decPrivateModeFlag = false; | |
3481 | ||
bd8d51fa KL |
3482 | for (int i = 0; i < collectBuffer.length(); i++) { |
3483 | if (collectBuffer.charAt(i) == '?') { | |
34a42e78 | 3484 | decPrivateModeFlag = true; |
bd8d51fa | 3485 | break; |
34a42e78 KL |
3486 | } |
3487 | } | |
3488 | ||
3489 | int i = getCsiParam(0, 0); | |
3490 | ||
3491 | switch (i) { | |
3492 | ||
3493 | case 5: | |
3494 | // Request status report. Respond with "OK, no malfunction." | |
3495 | ||
3496 | // Send string directly to remote side | |
3497 | if (((type == DeviceType.VT220) || (type == DeviceType.XTERM)) | |
3498 | && (s8c1t == true) | |
3499 | ) { | |
3500 | writeRemote("\u009b0n"); | |
3501 | } else { | |
3502 | writeRemote("\033[0n"); | |
3503 | } | |
3504 | break; | |
3505 | ||
3506 | case 6: | |
3507 | // Request cursor position. Respond with current position. | |
3508 | String str = ""; | |
3509 | if (((type == DeviceType.VT220) || (type == DeviceType.XTERM)) | |
3510 | && (s8c1t == true) | |
3511 | ) { | |
3512 | str = String.format("\u009b%d;%dR", | |
3513 | currentState.cursorY + 1, currentState.cursorX + 1); | |
3514 | } else { | |
3515 | str = String.format("\033[%d;%dR", | |
3516 | currentState.cursorY + 1, currentState.cursorX + 1); | |
3517 | } | |
3518 | ||
3519 | // Send string directly to remote side | |
3520 | writeRemote(str); | |
3521 | break; | |
3522 | ||
3523 | case 15: | |
3524 | if (decPrivateModeFlag == true) { | |
3525 | ||
3526 | // Request printer status report. Respond with "Printer not | |
3527 | // connected." | |
3528 | ||
3529 | if (((type == DeviceType.VT220) || (type == DeviceType.XTERM)) | |
3530 | && (s8c1t == true)) { | |
3531 | writeRemote("\u009b?13n"); | |
3532 | } else { | |
3533 | writeRemote("\033[?13n"); | |
3534 | } | |
3535 | } | |
3536 | break; | |
3537 | ||
3538 | case 25: | |
3539 | if (((type == DeviceType.VT220) || (type == DeviceType.XTERM)) | |
3540 | && (decPrivateModeFlag == true) | |
3541 | ) { | |
3542 | ||
3543 | // Request user-defined keys are locked or unlocked. Respond | |
3544 | // with "User-defined keys are locked." | |
3545 | ||
3546 | if (s8c1t == true) { | |
3547 | writeRemote("\u009b?21n"); | |
3548 | } else { | |
3549 | writeRemote("\033[?21n"); | |
3550 | } | |
3551 | } | |
3552 | break; | |
3553 | ||
3554 | case 26: | |
3555 | if (((type == DeviceType.VT220) || (type == DeviceType.XTERM)) | |
3556 | && (decPrivateModeFlag == true) | |
3557 | ) { | |
3558 | ||
3559 | // Request keyboard language. Respond with "Keyboard | |
3560 | // language is North American." | |
3561 | ||
3562 | if (s8c1t == true) { | |
3563 | writeRemote("\u009b?27;1n"); | |
3564 | } else { | |
3565 | writeRemote("\033[?27;1n"); | |
3566 | } | |
3567 | ||
3568 | } | |
3569 | break; | |
3570 | ||
3571 | default: | |
3572 | // Some other option, ignore | |
3573 | break; | |
3574 | } | |
3575 | } | |
3576 | ||
3577 | /** | |
3578 | * TBC - Tabulation clear. | |
3579 | */ | |
3580 | private void tbc() { | |
3581 | int i = getCsiParam(0, 0); | |
3582 | if (i == 0) { | |
3583 | List<Integer> newStops = new ArrayList<Integer>(); | |
3584 | for (Integer stop: tabStops) { | |
3585 | if (stop == currentState.cursorX) { | |
3586 | continue; | |
3587 | } | |
3588 | newStops.add(stop); | |
3589 | } | |
3590 | tabStops = newStops; | |
3591 | } | |
3592 | if (i == 3) { | |
3593 | tabStops.clear(); | |
3594 | } | |
3595 | } | |
3596 | ||
3597 | /** | |
3598 | * Erase the characters in the current line from the start column to the | |
3599 | * end column, inclusive. | |
3600 | * | |
3601 | * @param start starting column to erase (between 0 and width - 1) | |
3602 | * @param end ending column to erase (between 0 and width - 1) | |
3603 | * @param honorProtected if true, do not erase characters with the | |
3604 | * protected attribute set | |
3605 | */ | |
3606 | private void eraseLine(int start, int end, final boolean honorProtected) { | |
3607 | ||
3608 | if (start > end) { | |
3609 | return; | |
3610 | } | |
3611 | if (end > width - 1) { | |
3612 | end = width - 1; | |
3613 | } | |
3614 | if (start < 0) { | |
3615 | start = 0; | |
3616 | } | |
3617 | ||
3618 | for (int i = start; i <= end; i++) { | |
3619 | DisplayLine line = display.get(currentState.cursorY); | |
3620 | if ((!honorProtected) | |
7c870d89 | 3621 | || ((honorProtected) && (!line.charAt(i).isProtect()))) { |
34a42e78 KL |
3622 | |
3623 | switch (type) { | |
3624 | case VT100: | |
3625 | case VT102: | |
3626 | case VT220: | |
3627 | /* | |
3628 | * From the VT102 manual: | |
3629 | * | |
3630 | * Erasing a character also erases any character | |
3631 | * attribute of the character. | |
3632 | */ | |
3633 | line.setBlank(i); | |
3634 | break; | |
3635 | case XTERM: | |
3636 | /* | |
3637 | * Erase with the current color a.k.a. back-color erase | |
3638 | * (bce). | |
3639 | */ | |
3640 | line.setChar(i, ' '); | |
3641 | line.setAttr(i, currentState.attr); | |
3642 | break; | |
3643 | } | |
3644 | } | |
3645 | } | |
3646 | } | |
3647 | ||
3648 | /** | |
3649 | * Erase a rectangular section of the screen, inclusive. end column, | |
3650 | * inclusive. | |
3651 | * | |
3652 | * @param startRow starting row to erase (between 0 and height - 1) | |
3653 | * @param startCol starting column to erase (between 0 and width - 1) | |
3654 | * @param endRow ending row to erase (between 0 and height - 1) | |
3655 | * @param endCol ending column to erase (between 0 and width - 1) | |
3656 | * @param honorProtected if true, do not erase characters with the | |
3657 | * protected attribute set | |
3658 | */ | |
3659 | private void eraseScreen(final int startRow, final int startCol, | |
3660 | final int endRow, final int endCol, final boolean honorProtected) { | |
3661 | ||
3662 | int oldCursorY; | |
3663 | ||
3664 | if ((startRow < 0) | |
3665 | || (startCol < 0) | |
3666 | || (endRow < 0) | |
3667 | || (endCol < 0) | |
3668 | || (endRow < startRow) | |
3669 | || (endCol < startCol) | |
3670 | ) { | |
3671 | return; | |
3672 | } | |
3673 | ||
3674 | oldCursorY = currentState.cursorY; | |
3675 | for (int i = startRow; i <= endRow; i++) { | |
3676 | currentState.cursorY = i; | |
3677 | eraseLine(startCol, endCol, honorProtected); | |
3678 | ||
3679 | // Erase display clears the double attributes | |
3680 | display.get(i).setDoubleWidth(false); | |
3681 | display.get(i).setDoubleHeight(0); | |
3682 | } | |
3683 | currentState.cursorY = oldCursorY; | |
3684 | } | |
3685 | ||
3686 | /** | |
3687 | * VT220 printer functions. All of these are parsed, but won't do | |
3688 | * anything. | |
3689 | */ | |
3690 | private void printerFunctions() { | |
3691 | boolean decPrivateModeFlag = false; | |
bd8d51fa KL |
3692 | for (int i = 0; i < collectBuffer.length(); i++) { |
3693 | if (collectBuffer.charAt(i) == '?') { | |
34a42e78 | 3694 | decPrivateModeFlag = true; |
bd8d51fa | 3695 | break; |
34a42e78 KL |
3696 | } |
3697 | } | |
3698 | ||
3699 | int i = getCsiParam(0, 0); | |
3700 | ||
3701 | switch (i) { | |
3702 | ||
3703 | case 0: | |
3704 | if (decPrivateModeFlag == false) { | |
3705 | // Print screen | |
3706 | } | |
3707 | break; | |
3708 | ||
3709 | case 1: | |
3710 | if (decPrivateModeFlag == true) { | |
3711 | // Print cursor line | |
3712 | } | |
3713 | break; | |
3714 | ||
3715 | case 4: | |
3716 | if (decPrivateModeFlag == true) { | |
3717 | // Auto print mode OFF | |
3718 | } else { | |
3719 | // Printer controller OFF | |
3720 | ||
3721 | // Characters re-appear on the screen | |
3722 | printerControllerMode = false; | |
3723 | } | |
3724 | break; | |
3725 | ||
3726 | case 5: | |
3727 | if (decPrivateModeFlag == true) { | |
3728 | // Auto print mode | |
3729 | ||
3730 | } else { | |
3731 | // Printer controller | |
3732 | ||
3733 | // Characters get sucked into oblivion | |
3734 | printerControllerMode = true; | |
3735 | } | |
3736 | break; | |
3737 | ||
3738 | default: | |
3739 | break; | |
3740 | ||
3741 | } | |
3742 | } | |
3743 | ||
3744 | /** | |
3745 | * Handle the SCAN_OSC_STRING state. Handle this in VT100 because lots | |
3746 | * of remote systems will send an XTerm title sequence even if TERM isn't | |
3747 | * xterm. | |
3748 | * | |
3749 | * @param xtermChar the character received from the remote side | |
3750 | */ | |
3751 | private void oscPut(final char xtermChar) { | |
3752 | // Collect first | |
bd8d51fa | 3753 | collectBuffer.append(xtermChar); |
34a42e78 KL |
3754 | |
3755 | // Xterm cases... | |
3756 | if (xtermChar == 0x07) { | |
bd8d51fa KL |
3757 | String args = collectBuffer.substring(0, |
3758 | collectBuffer.length() - 1); | |
34a42e78 KL |
3759 | String [] p = args.toString().split(";"); |
3760 | if (p.length > 0) { | |
3761 | if ((p[0].equals("0")) || (p[0].equals("2"))) { | |
3762 | if (p.length > 1) { | |
3763 | // Screen title | |
3764 | screenTitle = p[1]; | |
3765 | } | |
3766 | } | |
3767 | } | |
3768 | ||
3769 | // Go to SCAN_GROUND state | |
3770 | toGround(); | |
3771 | return; | |
3772 | } | |
3773 | } | |
3774 | ||
3775 | /** | |
3776 | * Run this input character through the ECMA48 state machine. | |
3777 | * | |
3778 | * @param ch character from the remote side | |
3779 | */ | |
cf9af8df | 3780 | private void consume(char ch) { |
34a42e78 KL |
3781 | |
3782 | // DEBUG | |
3783 | // System.err.printf("%c", ch); | |
3784 | ||
3785 | // Special case for VT10x: 7-bit characters only | |
3786 | if ((type == DeviceType.VT100) || (type == DeviceType.VT102)) { | |
3787 | ch = (char)(ch & 0x7F); | |
3788 | } | |
3789 | ||
3790 | // Special "anywhere" states | |
3791 | ||
3792 | // 18, 1A --> execute, then switch to SCAN_GROUND | |
3793 | if ((ch == 0x18) || (ch == 0x1A)) { | |
3794 | // CAN and SUB abort escape sequences | |
3795 | toGround(); | |
3796 | return; | |
3797 | } | |
3798 | ||
3799 | // 80-8F, 91-97, 99, 9A, 9C --> execute, then switch to SCAN_GROUND | |
3800 | ||
3801 | // 0x1B == ESCAPE | |
3802 | if ((ch == 0x1B) | |
3803 | && (scanState != ScanState.DCS_ENTRY) | |
3804 | && (scanState != ScanState.DCS_INTERMEDIATE) | |
3805 | && (scanState != ScanState.DCS_IGNORE) | |
3806 | && (scanState != ScanState.DCS_PARAM) | |
3807 | && (scanState != ScanState.DCS_PASSTHROUGH) | |
3808 | ) { | |
3809 | ||
3810 | scanState = ScanState.ESCAPE; | |
3811 | return; | |
3812 | } | |
3813 | ||
3814 | // 0x9B == CSI 8-bit sequence | |
3815 | if (ch == 0x9B) { | |
3816 | scanState = ScanState.CSI_ENTRY; | |
3817 | return; | |
3818 | } | |
3819 | ||
3820 | // 0x9D goes to ScanState.OSC_STRING | |
3821 | if (ch == 0x9D) { | |
3822 | scanState = ScanState.OSC_STRING; | |
3823 | return; | |
3824 | } | |
3825 | ||
3826 | // 0x90 goes to DCS_ENTRY | |
3827 | if (ch == 0x90) { | |
3828 | scanState = ScanState.DCS_ENTRY; | |
3829 | return; | |
3830 | } | |
3831 | ||
3832 | // 0x98, 0x9E, and 0x9F go to SOSPMAPC_STRING | |
3833 | if ((ch == 0x98) || (ch == 0x9E) || (ch == 0x9F)) { | |
3834 | scanState = ScanState.SOSPMAPC_STRING; | |
3835 | return; | |
3836 | } | |
3837 | ||
3838 | // 0x7F (DEL) is always discarded | |
3839 | if (ch == 0x7F) { | |
3840 | return; | |
3841 | } | |
3842 | ||
3843 | switch (scanState) { | |
3844 | ||
3845 | case GROUND: | |
3846 | // 00-17, 19, 1C-1F --> execute | |
3847 | // 80-8F, 91-9A, 9C --> execute | |
3848 | if ((ch <= 0x1F) || ((ch >= 0x80) && (ch <= 0x9F))) { | |
3849 | handleControlChar(ch); | |
3850 | } | |
3851 | ||
3852 | // 20-7F --> print | |
3853 | if (((ch >= 0x20) && (ch <= 0x7F)) | |
3854 | || (ch >= 0xA0) | |
3855 | ) { | |
3856 | ||
3857 | // VT220 printer --> trash bin | |
3858 | if (((type == DeviceType.VT220) | |
3859 | || (type == DeviceType.XTERM)) | |
3860 | && (printerControllerMode == true) | |
3861 | ) { | |
3862 | return; | |
3863 | } | |
3864 | ||
3865 | // Hang onto this character | |
3866 | repCh = mapCharacter(ch); | |
3867 | ||
3868 | // Print this character | |
3869 | printCharacter(repCh); | |
3870 | } | |
3871 | return; | |
3872 | ||
3873 | case ESCAPE: | |
3874 | // 00-17, 19, 1C-1F --> execute | |
3875 | if (ch <= 0x1F) { | |
3876 | handleControlChar(ch); | |
3877 | return; | |
3878 | } | |
3879 | ||
3880 | // 20-2F --> collect, then switch to ESCAPE_INTERMEDIATE | |
3881 | if ((ch >= 0x20) && (ch <= 0x2F)) { | |
3882 | collect(ch); | |
3883 | scanState = ScanState.ESCAPE_INTERMEDIATE; | |
3884 | return; | |
3885 | } | |
3886 | ||
3887 | // 30-4F, 51-57, 59, 5A, 5C, 60-7E --> dispatch, then switch to GROUND | |
3888 | if ((ch >= 0x30) && (ch <= 0x4F)) { | |
3889 | switch (ch) { | |
3890 | case '0': | |
3891 | case '1': | |
3892 | case '2': | |
3893 | case '3': | |
3894 | case '4': | |
3895 | case '5': | |
3896 | case '6': | |
3897 | break; | |
3898 | case '7': | |
3899 | // DECSC - Save cursor | |
3900 | // Note this code overlaps both ANSI and VT52 mode | |
3901 | decsc(); | |
3902 | break; | |
3903 | ||
3904 | case '8': | |
3905 | // DECRC - Restore cursor | |
3906 | // Note this code overlaps both ANSI and VT52 mode | |
3907 | decrc(); | |
3908 | break; | |
3909 | ||
3910 | case '9': | |
3911 | case ':': | |
3912 | case ';': | |
3913 | break; | |
3914 | case '<': | |
3915 | if (vt52Mode == true) { | |
3916 | // DECANM - Enter ANSI mode | |
3917 | vt52Mode = false; | |
3918 | arrowKeyMode = ArrowKeyMode.VT100; | |
3919 | ||
3920 | /* | |
3921 | * From the VT102 docs: "You use ANSI mode to select | |
3922 | * most terminal features; the terminal uses the same | |
3923 | * features when it switches to VT52 mode. You | |
3924 | * cannot, however, change most of these features in | |
3925 | * VT52 mode." | |
3926 | * | |
3927 | * In other words, do not reset any other attributes | |
3928 | * when switching between VT52 submode and ANSI. | |
3929 | */ | |
3930 | ||
3931 | // Reset fonts | |
3932 | currentState.g0Charset = CharacterSet.US; | |
3933 | currentState.g1Charset = CharacterSet.DRAWING; | |
3934 | s8c1t = false; | |
3935 | singleshift = Singleshift.NONE; | |
3936 | currentState.glLockshift = LockshiftMode.NONE; | |
3937 | currentState.grLockshift = LockshiftMode.NONE; | |
3938 | } | |
3939 | break; | |
3940 | case '=': | |
3941 | // DECKPAM - Keypad application mode | |
3942 | // Note this code overlaps both ANSI and VT52 mode | |
3943 | deckpam(); | |
3944 | break; | |
3945 | case '>': | |
3946 | // DECKPNM - Keypad numeric mode | |
3947 | // Note this code overlaps both ANSI and VT52 mode | |
3948 | deckpnm(); | |
3949 | break; | |
3950 | case '?': | |
3951 | case '@': | |
3952 | break; | |
3953 | case 'A': | |
3954 | if (vt52Mode == true) { | |
3955 | // Cursor up, and stop at the top without scrolling | |
3956 | cursorUp(1, false); | |
3957 | } | |
3958 | break; | |
3959 | case 'B': | |
3960 | if (vt52Mode == true) { | |
3961 | // Cursor down, and stop at the bottom without scrolling | |
3962 | cursorDown(1, false); | |
3963 | } | |
3964 | break; | |
3965 | case 'C': | |
3966 | if (vt52Mode == true) { | |
3967 | // Cursor right, and stop at the right without scrolling | |
3968 | cursorRight(1, false); | |
3969 | } | |
3970 | break; | |
3971 | case 'D': | |
3972 | if (vt52Mode == true) { | |
3973 | // Cursor left, and stop at the left without scrolling | |
3974 | cursorLeft(1, false); | |
3975 | } else { | |
3976 | // IND - Index | |
3977 | ind(); | |
3978 | } | |
3979 | break; | |
3980 | case 'E': | |
3981 | if (vt52Mode == true) { | |
3982 | // Nothing | |
3983 | } else { | |
3984 | // NEL - Next line | |
3985 | nel(); | |
3986 | } | |
3987 | break; | |
3988 | case 'F': | |
3989 | if (vt52Mode == true) { | |
3990 | // G0 --> Special graphics | |
3991 | currentState.g0Charset = CharacterSet.VT52_GRAPHICS; | |
3992 | } | |
3993 | break; | |
3994 | case 'G': | |
3995 | if (vt52Mode == true) { | |
3996 | // G0 --> ASCII set | |
3997 | currentState.g0Charset = CharacterSet.US; | |
3998 | } | |
3999 | break; | |
4000 | case 'H': | |
4001 | if (vt52Mode == true) { | |
4002 | // Cursor to home | |
4003 | cursorPosition(0, 0); | |
4004 | } else { | |
4005 | // HTS - Horizontal tabulation set | |
4006 | hts(); | |
4007 | } | |
4008 | break; | |
4009 | case 'I': | |
4010 | if (vt52Mode == true) { | |
4011 | // Reverse line feed. Same as RI. | |
4012 | ri(); | |
4013 | } | |
4014 | break; | |
4015 | case 'J': | |
4016 | if (vt52Mode == true) { | |
4017 | // Erase to end of screen | |
4018 | eraseLine(currentState.cursorX, width - 1, false); | |
4019 | eraseScreen(currentState.cursorY + 1, 0, height - 1, | |
4020 | width - 1, false); | |
4021 | } | |
4022 | break; | |
4023 | case 'K': | |
4024 | if (vt52Mode == true) { | |
4025 | // Erase to end of line | |
4026 | eraseLine(currentState.cursorX, width - 1, false); | |
4027 | } | |
4028 | break; | |
4029 | case 'L': | |
4030 | break; | |
4031 | case 'M': | |
4032 | if (vt52Mode == true) { | |
4033 | // Nothing | |
4034 | } else { | |
4035 | // RI - Reverse index | |
4036 | ri(); | |
4037 | } | |
4038 | break; | |
4039 | case 'N': | |
4040 | if (vt52Mode == false) { | |
4041 | // SS2 | |
4042 | singleshift = Singleshift.SS2; | |
4043 | } | |
4044 | break; | |
4045 | case 'O': | |
4046 | if (vt52Mode == false) { | |
4047 | // SS3 | |
4048 | singleshift = Singleshift.SS3; | |
4049 | } | |
4050 | break; | |
4051 | } | |
4052 | toGround(); | |
4053 | return; | |
4054 | } | |
4055 | if ((ch >= 0x51) && (ch <= 0x57)) { | |
4056 | switch (ch) { | |
4057 | case 'Q': | |
4058 | case 'R': | |
4059 | case 'S': | |
4060 | case 'T': | |
4061 | case 'U': | |
4062 | case 'V': | |
4063 | case 'W': | |
4064 | break; | |
4065 | } | |
4066 | toGround(); | |
4067 | return; | |
4068 | } | |
4069 | if (ch == 0x59) { | |
4070 | // 'Y' | |
4071 | if (vt52Mode == true) { | |
4072 | scanState = ScanState.VT52_DIRECT_CURSOR_ADDRESS; | |
4073 | } else { | |
4074 | toGround(); | |
4075 | } | |
4076 | return; | |
4077 | } | |
4078 | if (ch == 0x5A) { | |
4079 | // 'Z' | |
4080 | if (vt52Mode == true) { | |
4081 | // Identify | |
4082 | // Send string directly to remote side | |
4083 | writeRemote("\033/Z"); | |
4084 | } else { | |
4085 | // DECID | |
4086 | // Send string directly to remote side | |
4087 | writeRemote(deviceTypeResponse()); | |
4088 | } | |
4089 | toGround(); | |
4090 | return; | |
4091 | } | |
4092 | if (ch == 0x5C) { | |
4093 | // '\' | |
4094 | toGround(); | |
4095 | return; | |
4096 | } | |
4097 | ||
4098 | // VT52 cannot get to any of these other states | |
4099 | if (vt52Mode == true) { | |
4100 | toGround(); | |
4101 | return; | |
4102 | } | |
4103 | ||
4104 | if ((ch >= 0x60) && (ch <= 0x7E)) { | |
4105 | switch (ch) { | |
4106 | case '`': | |
4107 | case 'a': | |
4108 | case 'b': | |
4109 | break; | |
4110 | case 'c': | |
4111 | // RIS - Reset to initial state | |
4112 | reset(); | |
4113 | // Do I clear screen too? I think so... | |
4114 | eraseScreen(0, 0, height - 1, width - 1, false); | |
4115 | cursorPosition(0, 0); | |
4116 | break; | |
4117 | case 'd': | |
4118 | case 'e': | |
4119 | case 'f': | |
4120 | case 'g': | |
4121 | case 'h': | |
4122 | case 'i': | |
4123 | case 'j': | |
4124 | case 'k': | |
4125 | case 'l': | |
4126 | case 'm': | |
4127 | break; | |
4128 | case 'n': | |
4129 | if ((type == DeviceType.VT220) | |
4130 | || (type == DeviceType.XTERM)) { | |
4131 | ||
4132 | // VT220 lockshift G2 into GL | |
4133 | currentState.glLockshift = LockshiftMode.G2_GL; | |
4134 | shiftOut = false; | |
4135 | } | |
4136 | break; | |
4137 | case 'o': | |
4138 | if ((type == DeviceType.VT220) | |
4139 | || (type == DeviceType.XTERM)) { | |
4140 | ||
4141 | // VT220 lockshift G3 into GL | |
4142 | currentState.glLockshift = LockshiftMode.G3_GL; | |
4143 | shiftOut = false; | |
4144 | } | |
4145 | break; | |
4146 | case 'p': | |
4147 | case 'q': | |
4148 | case 'r': | |
4149 | case 's': | |
4150 | case 't': | |
4151 | case 'u': | |
4152 | case 'v': | |
4153 | case 'w': | |
4154 | case 'x': | |
4155 | case 'y': | |
4156 | case 'z': | |
4157 | case '{': | |
4158 | break; | |
4159 | case '|': | |
4160 | if ((type == DeviceType.VT220) | |
4161 | || (type == DeviceType.XTERM)) { | |
4162 | ||
4163 | // VT220 lockshift G3 into GR | |
4164 | currentState.grLockshift = LockshiftMode.G3_GR; | |
4165 | shiftOut = false; | |
4166 | } | |
4167 | break; | |
4168 | case '}': | |
4169 | if ((type == DeviceType.VT220) | |
4170 | || (type == DeviceType.XTERM)) { | |
4171 | ||
4172 | // VT220 lockshift G2 into GR | |
4173 | currentState.grLockshift = LockshiftMode.G2_GR; | |
4174 | shiftOut = false; | |
4175 | } | |
4176 | break; | |
4177 | ||
4178 | case '~': | |
4179 | if ((type == DeviceType.VT220) | |
4180 | || (type == DeviceType.XTERM)) { | |
4181 | ||
4182 | // VT220 lockshift G1 into GR | |
4183 | currentState.grLockshift = LockshiftMode.G1_GR; | |
4184 | shiftOut = false; | |
4185 | } | |
4186 | break; | |
4187 | } | |
4188 | toGround(); | |
4189 | } | |
4190 | ||
4191 | // 7F --> ignore | |
4192 | ||
4193 | // 0x5B goes to CSI_ENTRY | |
4194 | if (ch == 0x5B) { | |
4195 | scanState = ScanState.CSI_ENTRY; | |
4196 | } | |
4197 | ||
4198 | // 0x5D goes to OSC_STRING | |
4199 | if (ch == 0x5D) { | |
4200 | scanState = ScanState.OSC_STRING; | |
4201 | } | |
4202 | ||
4203 | // 0x50 goes to DCS_ENTRY | |
4204 | if (ch == 0x50) { | |
4205 | scanState = ScanState.DCS_ENTRY; | |
4206 | } | |
4207 | ||
4208 | // 0x58, 0x5E, and 0x5F go to SOSPMAPC_STRING | |
4209 | if ((ch == 0x58) || (ch == 0x5E) || (ch == 0x5F)) { | |
4210 | scanState = ScanState.SOSPMAPC_STRING; | |
4211 | } | |
4212 | ||
4213 | return; | |
4214 | ||
4215 | case ESCAPE_INTERMEDIATE: | |
4216 | // 00-17, 19, 1C-1F --> execute | |
4217 | if (ch <= 0x1F) { | |
4218 | handleControlChar(ch); | |
4219 | } | |
4220 | ||
4221 | // 20-2F --> collect | |
4222 | if ((ch >= 0x20) && (ch <= 0x2F)) { | |
4223 | collect(ch); | |
4224 | } | |
4225 | ||
4226 | // 30-7E --> dispatch, then switch to GROUND | |
4227 | if ((ch >= 0x30) && (ch <= 0x7E)) { | |
4228 | switch (ch) { | |
4229 | case '0': | |
bd8d51fa KL |
4230 | if ((collectBuffer.length() == 1) |
4231 | && (collectBuffer.charAt(0) == '(')) { | |
34a42e78 KL |
4232 | // G0 --> Special graphics |
4233 | currentState.g0Charset = CharacterSet.DRAWING; | |
4234 | } | |
bd8d51fa KL |
4235 | if ((collectBuffer.length() == 1) |
4236 | && (collectBuffer.charAt(0) == ')')) { | |
34a42e78 KL |
4237 | // G1 --> Special graphics |
4238 | currentState.g1Charset = CharacterSet.DRAWING; | |
4239 | } | |
4240 | if ((type == DeviceType.VT220) | |
4241 | || (type == DeviceType.XTERM)) { | |
4242 | ||
bd8d51fa KL |
4243 | if ((collectBuffer.length() == 1) |
4244 | && (collectBuffer.charAt(0) == '*')) { | |
34a42e78 KL |
4245 | // G2 --> Special graphics |
4246 | currentState.g2Charset = CharacterSet.DRAWING; | |
4247 | } | |
bd8d51fa KL |
4248 | if ((collectBuffer.length() == 1) |
4249 | && (collectBuffer.charAt(0) == '+')) { | |
34a42e78 KL |
4250 | // G3 --> Special graphics |
4251 | currentState.g3Charset = CharacterSet.DRAWING; | |
4252 | } | |
4253 | } | |
4254 | break; | |
4255 | case '1': | |
bd8d51fa KL |
4256 | if ((collectBuffer.length() == 1) |
4257 | && (collectBuffer.charAt(0) == '(')) { | |
34a42e78 KL |
4258 | // G0 --> Alternate character ROM standard character set |
4259 | currentState.g0Charset = CharacterSet.ROM; | |
4260 | } | |
bd8d51fa KL |
4261 | if ((collectBuffer.length() == 1) |
4262 | && (collectBuffer.charAt(0) == ')')) { | |
34a42e78 KL |
4263 | // G1 --> Alternate character ROM standard character set |
4264 | currentState.g1Charset = CharacterSet.ROM; | |
4265 | } | |
4266 | break; | |
4267 | case '2': | |
bd8d51fa KL |
4268 | if ((collectBuffer.length() == 1) |
4269 | && (collectBuffer.charAt(0) == '(')) { | |
34a42e78 KL |
4270 | // G0 --> Alternate character ROM special graphics |
4271 | currentState.g0Charset = CharacterSet.ROM_SPECIAL; | |
4272 | } | |
bd8d51fa KL |
4273 | if ((collectBuffer.length() == 1) |
4274 | && (collectBuffer.charAt(0) == ')')) { | |
34a42e78 KL |
4275 | // G1 --> Alternate character ROM special graphics |
4276 | currentState.g1Charset = CharacterSet.ROM_SPECIAL; | |
4277 | } | |
4278 | break; | |
4279 | case '3': | |
bd8d51fa KL |
4280 | if ((collectBuffer.length() == 1) |
4281 | && (collectBuffer.charAt(0) == '#')) { | |
34a42e78 KL |
4282 | // DECDHL - Double-height line (top half) |
4283 | dechdl(true); | |
4284 | } | |
4285 | break; | |
4286 | case '4': | |
bd8d51fa KL |
4287 | if ((collectBuffer.length() == 1) |
4288 | && (collectBuffer.charAt(0) == '#')) { | |
34a42e78 KL |
4289 | // DECDHL - Double-height line (bottom half) |
4290 | dechdl(false); | |
4291 | } | |
4292 | if ((type == DeviceType.VT220) | |
4293 | || (type == DeviceType.XTERM)) { | |
4294 | ||
bd8d51fa KL |
4295 | if ((collectBuffer.length() == 1) |
4296 | && (collectBuffer.charAt(0) == '(')) { | |
34a42e78 KL |
4297 | // G0 --> DUTCH |
4298 | currentState.g0Charset = CharacterSet.NRC_DUTCH; | |
4299 | } | |
bd8d51fa KL |
4300 | if ((collectBuffer.length() == 1) |
4301 | && (collectBuffer.charAt(0) == ')')) { | |
34a42e78 KL |
4302 | // G1 --> DUTCH |
4303 | currentState.g1Charset = CharacterSet.NRC_DUTCH; | |
4304 | } | |
bd8d51fa KL |
4305 | if ((collectBuffer.length() == 1) |
4306 | && (collectBuffer.charAt(0) == '*')) { | |
34a42e78 KL |
4307 | // G2 --> DUTCH |
4308 | currentState.g2Charset = CharacterSet.NRC_DUTCH; | |
4309 | } | |
bd8d51fa KL |
4310 | if ((collectBuffer.length() == 1) |
4311 | && (collectBuffer.charAt(0) == '+')) { | |
34a42e78 KL |
4312 | // G3 --> DUTCH |
4313 | currentState.g3Charset = CharacterSet.NRC_DUTCH; | |
4314 | } | |
4315 | } | |
4316 | break; | |
4317 | case '5': | |
bd8d51fa KL |
4318 | if ((collectBuffer.length() == 1) |
4319 | && (collectBuffer.charAt(0) == '#')) { | |
34a42e78 KL |
4320 | // DECSWL - Single-width line |
4321 | decswl(); | |
4322 | } | |
4323 | if ((type == DeviceType.VT220) | |
4324 | || (type == DeviceType.XTERM)) { | |
4325 | ||
bd8d51fa KL |
4326 | if ((collectBuffer.length() == 1) |
4327 | && (collectBuffer.charAt(0) == '(')) { | |
34a42e78 KL |
4328 | // G0 --> FINNISH |
4329 | currentState.g0Charset = CharacterSet.NRC_FINNISH; | |
4330 | } | |
bd8d51fa KL |
4331 | if ((collectBuffer.length() == 1) |
4332 | && (collectBuffer.charAt(0) == ')')) { | |
34a42e78 KL |
4333 | // G1 --> FINNISH |
4334 | currentState.g1Charset = CharacterSet.NRC_FINNISH; | |
4335 | } | |
bd8d51fa KL |
4336 | if ((collectBuffer.length() == 1) |
4337 | && (collectBuffer.charAt(0) == '*')) { | |
34a42e78 KL |
4338 | // G2 --> FINNISH |
4339 | currentState.g2Charset = CharacterSet.NRC_FINNISH; | |
4340 | } | |
bd8d51fa KL |
4341 | if ((collectBuffer.length() == 1) |
4342 | && (collectBuffer.charAt(0) == '+')) { | |
34a42e78 KL |
4343 | // G3 --> FINNISH |
4344 | currentState.g3Charset = CharacterSet.NRC_FINNISH; | |
4345 | } | |
4346 | } | |
4347 | break; | |
4348 | case '6': | |
bd8d51fa KL |
4349 | if ((collectBuffer.length() == 1) |
4350 | && (collectBuffer.charAt(0) == '#')) { | |
34a42e78 KL |
4351 | // DECDWL - Double-width line |
4352 | decdwl(); | |
4353 | } | |
4354 | if ((type == DeviceType.VT220) | |
4355 | || (type == DeviceType.XTERM)) { | |
4356 | ||
bd8d51fa KL |
4357 | if ((collectBuffer.length() == 1) |
4358 | && (collectBuffer.charAt(0) == '(')) { | |
34a42e78 KL |
4359 | // G0 --> NORWEGIAN |
4360 | currentState.g0Charset = CharacterSet.NRC_NORWEGIAN; | |
4361 | } | |
bd8d51fa KL |
4362 | if ((collectBuffer.length() == 1) |
4363 | && (collectBuffer.charAt(0) == ')')) { | |
34a42e78 KL |
4364 | // G1 --> NORWEGIAN |
4365 | currentState.g1Charset = CharacterSet.NRC_NORWEGIAN; | |
4366 | } | |
bd8d51fa KL |
4367 | if ((collectBuffer.length() == 1) |
4368 | && (collectBuffer.charAt(0) == '*')) { | |
34a42e78 KL |
4369 | // G2 --> NORWEGIAN |
4370 | currentState.g2Charset = CharacterSet.NRC_NORWEGIAN; | |
4371 | } | |
bd8d51fa KL |
4372 | if ((collectBuffer.length() == 1) |
4373 | && (collectBuffer.charAt(0) == '+')) { | |
34a42e78 KL |
4374 | // G3 --> NORWEGIAN |
4375 | currentState.g3Charset = CharacterSet.NRC_NORWEGIAN; | |
4376 | } | |
4377 | } | |
4378 | break; | |
4379 | case '7': | |
4380 | if ((type == DeviceType.VT220) | |
4381 | || (type == DeviceType.XTERM)) { | |
4382 | ||
bd8d51fa KL |
4383 | if ((collectBuffer.length() == 1) |
4384 | && (collectBuffer.charAt(0) == '(')) { | |
34a42e78 KL |
4385 | // G0 --> SWEDISH |
4386 | currentState.g0Charset = CharacterSet.NRC_SWEDISH; | |
4387 | } | |
bd8d51fa KL |
4388 | if ((collectBuffer.length() == 1) |
4389 | && (collectBuffer.charAt(0) == ')')) { | |
34a42e78 KL |
4390 | // G1 --> SWEDISH |
4391 | currentState.g1Charset = CharacterSet.NRC_SWEDISH; | |
4392 | } | |
bd8d51fa KL |
4393 | if ((collectBuffer.length() == 1) |
4394 | && (collectBuffer.charAt(0) == '*')) { | |
34a42e78 KL |
4395 | // G2 --> SWEDISH |
4396 | currentState.g2Charset = CharacterSet.NRC_SWEDISH; | |
4397 | } | |
bd8d51fa KL |
4398 | if ((collectBuffer.length() == 1) |
4399 | && (collectBuffer.charAt(0) == '+')) { | |
34a42e78 KL |
4400 | // G3 --> SWEDISH |
4401 | currentState.g3Charset = CharacterSet.NRC_SWEDISH; | |
4402 | } | |
4403 | } | |
4404 | break; | |
4405 | case '8': | |
bd8d51fa KL |
4406 | if ((collectBuffer.length() == 1) |
4407 | && (collectBuffer.charAt(0) == '#')) { | |
34a42e78 KL |
4408 | // DECALN - Screen alignment display |
4409 | decaln(); | |
4410 | } | |
4411 | break; | |
4412 | case '9': | |
4413 | case ':': | |
4414 | case ';': | |
4415 | break; | |
4416 | case '<': | |
4417 | if ((type == DeviceType.VT220) | |
4418 | || (type == DeviceType.XTERM)) { | |
4419 | ||
bd8d51fa KL |
4420 | if ((collectBuffer.length() == 1) |
4421 | && (collectBuffer.charAt(0) == '(')) { | |
34a42e78 KL |
4422 | // G0 --> DEC_SUPPLEMENTAL |
4423 | currentState.g0Charset = CharacterSet.DEC_SUPPLEMENTAL; | |
4424 | } | |
bd8d51fa KL |
4425 | if ((collectBuffer.length() == 1) |
4426 | && (collectBuffer.charAt(0) == ')')) { | |
34a42e78 KL |
4427 | // G1 --> DEC_SUPPLEMENTAL |
4428 | currentState.g1Charset = CharacterSet.DEC_SUPPLEMENTAL; | |
4429 | } | |
bd8d51fa KL |
4430 | if ((collectBuffer.length() == 1) |
4431 | && (collectBuffer.charAt(0) == '*')) { | |
34a42e78 KL |
4432 | // G2 --> DEC_SUPPLEMENTAL |
4433 | currentState.g2Charset = CharacterSet.DEC_SUPPLEMENTAL; | |
4434 | } | |
bd8d51fa KL |
4435 | if ((collectBuffer.length() == 1) |
4436 | && (collectBuffer.charAt(0) == '+')) { | |
34a42e78 KL |
4437 | // G3 --> DEC_SUPPLEMENTAL |
4438 | currentState.g3Charset = CharacterSet.DEC_SUPPLEMENTAL; | |
4439 | } | |
4440 | } | |
4441 | break; | |
4442 | case '=': | |
4443 | if ((type == DeviceType.VT220) | |
4444 | || (type == DeviceType.XTERM)) { | |
4445 | ||
bd8d51fa KL |
4446 | if ((collectBuffer.length() == 1) |
4447 | && (collectBuffer.charAt(0) == '(')) { | |
34a42e78 KL |
4448 | // G0 --> SWISS |
4449 | currentState.g0Charset = CharacterSet.NRC_SWISS; | |
4450 | } | |
bd8d51fa KL |
4451 | if ((collectBuffer.length() == 1) |
4452 | && (collectBuffer.charAt(0) == ')')) { | |
34a42e78 KL |
4453 | // G1 --> SWISS |
4454 | currentState.g1Charset = CharacterSet.NRC_SWISS; | |
4455 | } | |
bd8d51fa KL |
4456 | if ((collectBuffer.length() == 1) |
4457 | && (collectBuffer.charAt(0) == '*')) { | |
34a42e78 KL |
4458 | // G2 --> SWISS |
4459 | currentState.g2Charset = CharacterSet.NRC_SWISS; | |
4460 | } | |
bd8d51fa KL |
4461 | if ((collectBuffer.length() == 1) |
4462 | && (collectBuffer.charAt(0) == '+')) { | |
34a42e78 KL |
4463 | // G3 --> SWISS |
4464 | currentState.g3Charset = CharacterSet.NRC_SWISS; | |
4465 | } | |
4466 | } | |
4467 | break; | |
4468 | case '>': | |
4469 | case '?': | |
4470 | case '@': | |
4471 | break; | |
4472 | case 'A': | |
bd8d51fa KL |
4473 | if ((collectBuffer.length() == 1) |
4474 | && (collectBuffer.charAt(0) == '(')) { | |
34a42e78 KL |
4475 | // G0 --> United Kingdom set |
4476 | currentState.g0Charset = CharacterSet.UK; | |
4477 | } | |
bd8d51fa KL |
4478 | if ((collectBuffer.length() == 1) |
4479 | && (collectBuffer.charAt(0) == ')')) { | |
34a42e78 KL |
4480 | // G1 --> United Kingdom set |
4481 | currentState.g1Charset = CharacterSet.UK; | |
4482 | } | |
4483 | if ((type == DeviceType.VT220) | |
4484 | || (type == DeviceType.XTERM)) { | |
4485 | ||
bd8d51fa KL |
4486 | if ((collectBuffer.length() == 1) |
4487 | && (collectBuffer.charAt(0) == '*')) { | |
34a42e78 KL |
4488 | // G2 --> United Kingdom set |
4489 | currentState.g2Charset = CharacterSet.UK; | |
4490 | } | |
bd8d51fa KL |
4491 | if ((collectBuffer.length() == 1) |
4492 | && (collectBuffer.charAt(0) == '+')) { | |
34a42e78 KL |
4493 | // G3 --> United Kingdom set |
4494 | currentState.g3Charset = CharacterSet.UK; | |
4495 | } | |
4496 | } | |
4497 | break; | |
4498 | case 'B': | |
bd8d51fa KL |
4499 | if ((collectBuffer.length() == 1) |
4500 | && (collectBuffer.charAt(0) == '(')) { | |
34a42e78 KL |
4501 | // G0 --> ASCII set |
4502 | currentState.g0Charset = CharacterSet.US; | |
4503 | } | |
bd8d51fa KL |
4504 | if ((collectBuffer.length() == 1) |
4505 | && (collectBuffer.charAt(0) == ')')) { | |
34a42e78 KL |
4506 | // G1 --> ASCII set |
4507 | currentState.g1Charset = CharacterSet.US; | |
4508 | } | |
4509 | if ((type == DeviceType.VT220) | |
4510 | || (type == DeviceType.XTERM)) { | |
4511 | ||
bd8d51fa KL |
4512 | if ((collectBuffer.length() == 1) |
4513 | && (collectBuffer.charAt(0) == '*')) { | |
34a42e78 KL |
4514 | // G2 --> ASCII |
4515 | currentState.g2Charset = CharacterSet.US; | |
4516 | } | |
bd8d51fa KL |
4517 | if ((collectBuffer.length() == 1) |
4518 | && (collectBuffer.charAt(0) == '+')) { | |
34a42e78 KL |
4519 | // G3 --> ASCII |
4520 | currentState.g3Charset = CharacterSet.US; | |
4521 | } | |
4522 | } | |
4523 | break; | |
4524 | case 'C': | |
4525 | if ((type == DeviceType.VT220) | |
4526 | || (type == DeviceType.XTERM)) { | |
4527 | ||
bd8d51fa KL |
4528 | if ((collectBuffer.length() == 1) |
4529 | && (collectBuffer.charAt(0) == '(')) { | |
34a42e78 KL |
4530 | // G0 --> FINNISH |
4531 | currentState.g0Charset = CharacterSet.NRC_FINNISH; | |
4532 | } | |
bd8d51fa KL |
4533 | if ((collectBuffer.length() == 1) |
4534 | && (collectBuffer.charAt(0) == ')')) { | |
34a42e78 KL |
4535 | // G1 --> FINNISH |
4536 | currentState.g1Charset = CharacterSet.NRC_FINNISH; | |
4537 | } | |
bd8d51fa KL |
4538 | if ((collectBuffer.length() == 1) |
4539 | && (collectBuffer.charAt(0) == '*')) { | |
34a42e78 KL |
4540 | // G2 --> FINNISH |
4541 | currentState.g2Charset = CharacterSet.NRC_FINNISH; | |
4542 | } | |
bd8d51fa KL |
4543 | if ((collectBuffer.length() == 1) |
4544 | && (collectBuffer.charAt(0) == '+')) { | |
34a42e78 KL |
4545 | // G3 --> FINNISH |
4546 | currentState.g3Charset = CharacterSet.NRC_FINNISH; | |
4547 | } | |
4548 | } | |
4549 | break; | |
4550 | case 'D': | |
4551 | break; | |
4552 | case 'E': | |
4553 | if ((type == DeviceType.VT220) | |
4554 | || (type == DeviceType.XTERM)) { | |
4555 | ||
bd8d51fa KL |
4556 | if ((collectBuffer.length() == 1) |
4557 | && (collectBuffer.charAt(0) == '(')) { | |
34a42e78 KL |
4558 | // G0 --> NORWEGIAN |
4559 | currentState.g0Charset = CharacterSet.NRC_NORWEGIAN; | |
4560 | } | |
bd8d51fa KL |
4561 | if ((collectBuffer.length() == 1) |
4562 | && (collectBuffer.charAt(0) == ')')) { | |
34a42e78 KL |
4563 | // G1 --> NORWEGIAN |
4564 | currentState.g1Charset = CharacterSet.NRC_NORWEGIAN; | |
4565 | } | |
bd8d51fa KL |
4566 | if ((collectBuffer.length() == 1) |
4567 | && (collectBuffer.charAt(0) == '*')) { | |
34a42e78 KL |
4568 | // G2 --> NORWEGIAN |
4569 | currentState.g2Charset = CharacterSet.NRC_NORWEGIAN; | |
4570 | } | |
bd8d51fa KL |
4571 | if ((collectBuffer.length() == 1) |
4572 | && (collectBuffer.charAt(0) == '+')) { | |
34a42e78 KL |
4573 | // G3 --> NORWEGIAN |
4574 | currentState.g3Charset = CharacterSet.NRC_NORWEGIAN; | |
4575 | } | |
4576 | } | |
4577 | break; | |
4578 | case 'F': | |
4579 | if ((type == DeviceType.VT220) | |
4580 | || (type == DeviceType.XTERM)) { | |
4581 | ||
bd8d51fa KL |
4582 | if ((collectBuffer.length() == 1) |
4583 | && (collectBuffer.charAt(0) == ' ')) { | |
34a42e78 KL |
4584 | // S7C1T |
4585 | s8c1t = false; | |
4586 | } | |
4587 | } | |
4588 | break; | |
4589 | case 'G': | |
4590 | if ((type == DeviceType.VT220) | |
4591 | || (type == DeviceType.XTERM)) { | |
4592 | ||
bd8d51fa KL |
4593 | if ((collectBuffer.length() == 1) |
4594 | && (collectBuffer.charAt(0) == ' ')) { | |
34a42e78 KL |
4595 | // S8C1T |
4596 | s8c1t = true; | |
4597 | } | |
4598 | } | |
4599 | break; | |
4600 | case 'H': | |
4601 | if ((type == DeviceType.VT220) | |
4602 | || (type == DeviceType.XTERM)) { | |
4603 | ||
bd8d51fa KL |
4604 | if ((collectBuffer.length() == 1) |
4605 | && (collectBuffer.charAt(0) == '(')) { | |
34a42e78 KL |
4606 | // G0 --> SWEDISH |
4607 | currentState.g0Charset = CharacterSet.NRC_SWEDISH; | |
4608 | } | |
bd8d51fa KL |
4609 | if ((collectBuffer.length() == 1) |
4610 | && (collectBuffer.charAt(0) == ')')) { | |
34a42e78 KL |
4611 | // G1 --> SWEDISH |
4612 | currentState.g1Charset = CharacterSet.NRC_SWEDISH; | |
4613 | } | |
bd8d51fa KL |
4614 | if ((collectBuffer.length() == 1) |
4615 | && (collectBuffer.charAt(0) == '*')) { | |
34a42e78 KL |
4616 | // G2 --> SWEDISH |
4617 | currentState.g2Charset = CharacterSet.NRC_SWEDISH; | |
4618 | } | |
bd8d51fa KL |
4619 | if ((collectBuffer.length() == 1) |
4620 | && (collectBuffer.charAt(0) == '+')) { | |
34a42e78 KL |
4621 | // G3 --> SWEDISH |
4622 | currentState.g3Charset = CharacterSet.NRC_SWEDISH; | |
4623 | } | |
4624 | } | |
4625 | break; | |
4626 | case 'I': | |
4627 | case 'J': | |
4628 | break; | |
4629 | case 'K': | |
4630 | if ((type == DeviceType.VT220) | |
4631 | || (type == DeviceType.XTERM)) { | |
4632 | ||
bd8d51fa KL |
4633 | if ((collectBuffer.length() == 1) |
4634 | && (collectBuffer.charAt(0) == '(')) { | |
34a42e78 KL |
4635 | // G0 --> GERMAN |
4636 | currentState.g0Charset = CharacterSet.NRC_GERMAN; | |
4637 | } | |
bd8d51fa KL |
4638 | if ((collectBuffer.length() == 1) |
4639 | && (collectBuffer.charAt(0) == ')')) { | |
34a42e78 KL |
4640 | // G1 --> GERMAN |
4641 | currentState.g1Charset = CharacterSet.NRC_GERMAN; | |
4642 | } | |
bd8d51fa KL |
4643 | if ((collectBuffer.length() == 1) |
4644 | && (collectBuffer.charAt(0) == '*')) { | |
34a42e78 KL |
4645 | // G2 --> GERMAN |
4646 | currentState.g2Charset = CharacterSet.NRC_GERMAN; | |
4647 | } | |
bd8d51fa KL |
4648 | if ((collectBuffer.length() == 1) |
4649 | && (collectBuffer.charAt(0) == '+')) { | |
34a42e78 KL |
4650 | // G3 --> GERMAN |
4651 | currentState.g3Charset = CharacterSet.NRC_GERMAN; | |
4652 | } | |
4653 | } | |
4654 | break; | |
4655 | case 'L': | |
4656 | case 'M': | |
4657 | case 'N': | |
4658 | case 'O': | |
4659 | case 'P': | |
4660 | break; | |
4661 | case 'Q': | |
4662 | if ((type == DeviceType.VT220) | |
4663 | || (type == DeviceType.XTERM)) { | |
4664 | ||
bd8d51fa KL |
4665 | if ((collectBuffer.length() == 1) |
4666 | && (collectBuffer.charAt(0) == '(')) { | |
34a42e78 KL |
4667 | // G0 --> FRENCH_CA |
4668 | currentState.g0Charset = CharacterSet.NRC_FRENCH_CA; | |
4669 | } | |
bd8d51fa KL |
4670 | if ((collectBuffer.length() == 1) |
4671 | && (collectBuffer.charAt(0) == ')')) { | |
34a42e78 KL |
4672 | // G1 --> FRENCH_CA |
4673 | currentState.g1Charset = CharacterSet.NRC_FRENCH_CA; | |
4674 | } | |
bd8d51fa KL |
4675 | if ((collectBuffer.length() == 1) |
4676 | && (collectBuffer.charAt(0) == '*')) { | |
34a42e78 KL |
4677 | // G2 --> FRENCH_CA |
4678 | currentState.g2Charset = CharacterSet.NRC_FRENCH_CA; | |
4679 | } | |
bd8d51fa KL |
4680 | if ((collectBuffer.length() == 1) |
4681 | && (collectBuffer.charAt(0) == '+')) { | |
34a42e78 KL |
4682 | // G3 --> FRENCH_CA |
4683 | currentState.g3Charset = CharacterSet.NRC_FRENCH_CA; | |
4684 | } | |
4685 | } | |
4686 | break; | |
4687 | case 'R': | |
4688 | if ((type == DeviceType.VT220) | |
4689 | || (type == DeviceType.XTERM)) { | |
4690 | ||
bd8d51fa KL |
4691 | if ((collectBuffer.length() == 1) |
4692 | && (collectBuffer.charAt(0) == '(')) { | |
34a42e78 KL |
4693 | // G0 --> FRENCH |
4694 | currentState.g0Charset = CharacterSet.NRC_FRENCH; | |
4695 | } | |
bd8d51fa KL |
4696 | if ((collectBuffer.length() == 1) |
4697 | && (collectBuffer.charAt(0) == ')')) { | |
34a42e78 KL |
4698 | // G1 --> FRENCH |
4699 | currentState.g1Charset = CharacterSet.NRC_FRENCH; | |
4700 | } | |
bd8d51fa KL |
4701 | if ((collectBuffer.length() == 1) |
4702 | && (collectBuffer.charAt(0) == '*')) { | |
34a42e78 KL |
4703 | // G2 --> FRENCH |
4704 | currentState.g2Charset = CharacterSet.NRC_FRENCH; | |
4705 | } | |
bd8d51fa KL |
4706 | if ((collectBuffer.length() == 1) |
4707 | && (collectBuffer.charAt(0) == '+')) { | |
34a42e78 KL |
4708 | // G3 --> FRENCH |
4709 | currentState.g3Charset = CharacterSet.NRC_FRENCH; | |
4710 | } | |
4711 | } | |
4712 | break; | |
4713 | case 'S': | |
4714 | case 'T': | |
4715 | case 'U': | |
4716 | case 'V': | |
4717 | case 'W': | |
4718 | case 'X': | |
4719 | break; | |
4720 | case 'Y': | |
4721 | if ((type == DeviceType.VT220) | |
4722 | || (type == DeviceType.XTERM)) { | |
4723 | ||
bd8d51fa KL |
4724 | if ((collectBuffer.length() == 1) |
4725 | && (collectBuffer.charAt(0) == '(')) { | |
34a42e78 KL |
4726 | // G0 --> ITALIAN |
4727 | currentState.g0Charset = CharacterSet.NRC_ITALIAN; | |
4728 | } | |
bd8d51fa KL |
4729 | if ((collectBuffer.length() == 1) |
4730 | && (collectBuffer.charAt(0) == ')')) { | |
34a42e78 KL |
4731 | // G1 --> ITALIAN |
4732 | currentState.g1Charset = CharacterSet.NRC_ITALIAN; | |
4733 | } | |
bd8d51fa KL |
4734 | if ((collectBuffer.length() == 1) |
4735 | && (collectBuffer.charAt(0) == '*')) { | |
34a42e78 KL |
4736 | // G2 --> ITALIAN |
4737 | currentState.g2Charset = CharacterSet.NRC_ITALIAN; | |
4738 | } | |
bd8d51fa KL |
4739 | if ((collectBuffer.length() == 1) |
4740 | && (collectBuffer.charAt(0) == '+')) { | |
34a42e78 KL |
4741 | // G3 --> ITALIAN |
4742 | currentState.g3Charset = CharacterSet.NRC_ITALIAN; | |
4743 | } | |
4744 | } | |
4745 | break; | |
4746 | case 'Z': | |
4747 | if ((type == DeviceType.VT220) | |
4748 | || (type == DeviceType.XTERM)) { | |
4749 | ||
bd8d51fa KL |
4750 | if ((collectBuffer.length() == 1) |
4751 | && (collectBuffer.charAt(0) == '(')) { | |
34a42e78 KL |
4752 | // G0 --> SPANISH |
4753 | currentState.g0Charset = CharacterSet.NRC_SPANISH; | |
4754 | } | |
bd8d51fa KL |
4755 | if ((collectBuffer.length() == 1) |
4756 | && (collectBuffer.charAt(0) == ')')) { | |
34a42e78 KL |
4757 | // G1 --> SPANISH |
4758 | currentState.g1Charset = CharacterSet.NRC_SPANISH; | |
4759 | } | |
bd8d51fa KL |
4760 | if ((collectBuffer.length() == 1) |
4761 | && (collectBuffer.charAt(0) == '*')) { | |
34a42e78 KL |
4762 | // G2 --> SPANISH |
4763 | currentState.g2Charset = CharacterSet.NRC_SPANISH; | |
4764 | } | |
bd8d51fa KL |
4765 | if ((collectBuffer.length() == 1) |
4766 | && (collectBuffer.charAt(0) == '+')) { | |
34a42e78 KL |
4767 | // G3 --> SPANISH |
4768 | currentState.g3Charset = CharacterSet.NRC_SPANISH; | |
4769 | } | |
4770 | } | |
4771 | break; | |
4772 | case '[': | |
4773 | case '\\': | |
4774 | case ']': | |
4775 | case '^': | |
4776 | case '_': | |
4777 | case '`': | |
4778 | case 'a': | |
4779 | case 'b': | |
4780 | case 'c': | |
4781 | case 'd': | |
4782 | case 'e': | |
4783 | case 'f': | |
4784 | case 'g': | |
4785 | case 'h': | |
4786 | case 'i': | |
4787 | case 'j': | |
4788 | case 'k': | |
4789 | case 'l': | |
4790 | case 'm': | |
4791 | case 'n': | |
4792 | case 'o': | |
4793 | case 'p': | |
4794 | case 'q': | |
4795 | case 'r': | |
4796 | case 's': | |
4797 | case 't': | |
4798 | case 'u': | |
4799 | case 'v': | |
4800 | case 'w': | |
4801 | case 'x': | |
4802 | case 'y': | |
4803 | case 'z': | |
4804 | case '{': | |
4805 | case '|': | |
4806 | case '}': | |
4807 | case '~': | |
4808 | break; | |
4809 | } | |
4810 | toGround(); | |
4811 | } | |
4812 | ||
4813 | // 7F --> ignore | |
4814 | ||
4815 | // 0x9C goes to GROUND | |
4816 | if (ch == 0x9C) { | |
4817 | toGround(); | |
4818 | } | |
4819 | ||
4820 | return; | |
4821 | ||
4822 | case CSI_ENTRY: | |
4823 | // 00-17, 19, 1C-1F --> execute | |
4824 | if (ch <= 0x1F) { | |
4825 | handleControlChar(ch); | |
4826 | } | |
4827 | ||
4828 | // 20-2F --> collect, then switch to CSI_INTERMEDIATE | |
4829 | if ((ch >= 0x20) && (ch <= 0x2F)) { | |
4830 | collect(ch); | |
4831 | scanState = ScanState.CSI_INTERMEDIATE; | |
4832 | } | |
4833 | ||
4834 | // 30-39, 3B --> param, then switch to CSI_PARAM | |
4835 | if ((ch >= '0') && (ch <= '9')) { | |
4836 | param((byte) ch); | |
4837 | scanState = ScanState.CSI_PARAM; | |
4838 | } | |
4839 | if (ch == ';') { | |
4840 | param((byte) ch); | |
4841 | scanState = ScanState.CSI_PARAM; | |
4842 | } | |
4843 | ||
4844 | // 3C-3F --> collect, then switch to CSI_PARAM | |
4845 | if ((ch >= 0x3C) && (ch <= 0x3F)) { | |
4846 | collect(ch); | |
4847 | scanState = ScanState.CSI_PARAM; | |
4848 | } | |
4849 | ||
4850 | // 40-7E --> dispatch, then switch to GROUND | |
4851 | if ((ch >= 0x40) && (ch <= 0x7E)) { | |
4852 | switch (ch) { | |
4853 | case '@': | |
4854 | // ICH - Insert character | |
4855 | ich(); | |
4856 | break; | |
4857 | case 'A': | |
4858 | // CUU - Cursor up | |
4859 | cuu(); | |
4860 | break; | |
4861 | case 'B': | |
4862 | // CUD - Cursor down | |
4863 | cud(); | |
4864 | break; | |
4865 | case 'C': | |
4866 | // CUF - Cursor forward | |
4867 | cuf(); | |
4868 | break; | |
4869 | case 'D': | |
4870 | // CUB - Cursor backward | |
4871 | cub(); | |
4872 | break; | |
4873 | case 'E': | |
4874 | // CNL - Cursor down and to column 1 | |
4875 | if (type == DeviceType.XTERM) { | |
4876 | cnl(); | |
4877 | } | |
4878 | break; | |
4879 | case 'F': | |
4880 | // CPL - Cursor up and to column 1 | |
4881 | if (type == DeviceType.XTERM) { | |
4882 | cpl(); | |
4883 | } | |
4884 | break; | |
4885 | case 'G': | |
4886 | // CHA - Cursor to column # in current row | |
4887 | if (type == DeviceType.XTERM) { | |
4888 | cha(); | |
4889 | } | |
4890 | break; | |
4891 | case 'H': | |
4892 | // CUP - Cursor position | |
4893 | cup(); | |
4894 | break; | |
4895 | case 'I': | |
4896 | // CHT - Cursor forward X tab stops (default 1) | |
4897 | if (type == DeviceType.XTERM) { | |
4898 | cht(); | |
4899 | } | |
4900 | break; | |
4901 | case 'J': | |
4902 | // ED - Erase in display | |
4903 | ed(); | |
4904 | break; | |
4905 | case 'K': | |
4906 | // EL - Erase in line | |
4907 | el(); | |
4908 | break; | |
4909 | case 'L': | |
4910 | // IL - Insert line | |
4911 | il(); | |
4912 | break; | |
4913 | case 'M': | |
4914 | // DL - Delete line | |
4915 | dl(); | |
4916 | break; | |
4917 | case 'N': | |
4918 | case 'O': | |
4919 | break; | |
4920 | case 'P': | |
4921 | // DCH - Delete character | |
4922 | dch(); | |
4923 | break; | |
4924 | case 'Q': | |
4925 | case 'R': | |
4926 | break; | |
4927 | case 'S': | |
4928 | // Scroll up X lines (default 1) | |
4929 | if (type == DeviceType.XTERM) { | |
4930 | su(); | |
4931 | } | |
4932 | break; | |
4933 | case 'T': | |
4934 | // Scroll down X lines (default 1) | |
4935 | if (type == DeviceType.XTERM) { | |
4936 | sd(); | |
4937 | } | |
4938 | break; | |
4939 | case 'U': | |
4940 | case 'V': | |
4941 | case 'W': | |
4942 | break; | |
4943 | case 'X': | |
4944 | if ((type == DeviceType.VT220) | |
4945 | || (type == DeviceType.XTERM)) { | |
4946 | ||
4947 | // ECH - Erase character | |
4948 | ech(); | |
4949 | } | |
4950 | break; | |
4951 | case 'Y': | |
4952 | break; | |
4953 | case 'Z': | |
4954 | // CBT - Cursor backward X tab stops (default 1) | |
4955 | if (type == DeviceType.XTERM) { | |
4956 | cbt(); | |
4957 | } | |
4958 | break; | |
4959 | case '[': | |
4960 | case '\\': | |
4961 | case ']': | |
4962 | case '^': | |
4963 | case '_': | |
4964 | break; | |
4965 | case '`': | |
4966 | // HPA - Cursor to column # in current row. Same as CHA | |
4967 | if (type == DeviceType.XTERM) { | |
4968 | cha(); | |
4969 | } | |
4970 | break; | |
4971 | case 'a': | |
4972 | // HPR - Cursor right. Same as CUF | |
4973 | if (type == DeviceType.XTERM) { | |
4974 | cuf(); | |
4975 | } | |
4976 | break; | |
4977 | case 'b': | |
4978 | // REP - Repeat last char X times | |
4979 | if (type == DeviceType.XTERM) { | |
4980 | rep(); | |
4981 | } | |
4982 | break; | |
4983 | case 'c': | |
4984 | // DA - Device attributes | |
4985 | da(); | |
4986 | break; | |
4987 | case 'd': | |
4988 | // VPA - Cursor to row, current column. | |
4989 | if (type == DeviceType.XTERM) { | |
4990 | vpa(); | |
4991 | } | |
4992 | break; | |
4993 | case 'e': | |
4994 | // VPR - Cursor down. Same as CUD | |
4995 | if (type == DeviceType.XTERM) { | |
4996 | cud(); | |
4997 | } | |
4998 | break; | |
4999 | case 'f': | |
5000 | // HVP - Horizontal and vertical position | |
5001 | hvp(); | |
5002 | break; | |
5003 | case 'g': | |
5004 | // TBC - Tabulation clear | |
5005 | tbc(); | |
5006 | break; | |
5007 | case 'h': | |
5008 | // Sets an ANSI or DEC private toggle | |
5009 | setToggle(true); | |
5010 | break; | |
5011 | case 'i': | |
5012 | if ((type == DeviceType.VT220) | |
5013 | || (type == DeviceType.XTERM)) { | |
5014 | ||
5015 | // Printer functions | |
5016 | printerFunctions(); | |
5017 | } | |
5018 | break; | |
5019 | case 'j': | |
5020 | case 'k': | |
5021 | break; | |
5022 | case 'l': | |
5023 | // Sets an ANSI or DEC private toggle | |
5024 | setToggle(false); | |
5025 | break; | |
5026 | case 'm': | |
5027 | // SGR - Select graphics rendition | |
5028 | sgr(); | |
5029 | break; | |
5030 | case 'n': | |
5031 | // DSR - Device status report | |
5032 | dsr(); | |
5033 | break; | |
5034 | case 'o': | |
5035 | case 'p': | |
5036 | break; | |
5037 | case 'q': | |
5038 | // DECLL - Load leds | |
5039 | // Not supported | |
5040 | break; | |
5041 | case 'r': | |
5042 | // DECSTBM - Set top and bottom margins | |
5043 | decstbm(); | |
5044 | break; | |
5045 | case 's': | |
5046 | // Save cursor (ANSI.SYS) | |
5047 | if (type == DeviceType.XTERM) { | |
5048 | savedState.cursorX = currentState.cursorX; | |
5049 | savedState.cursorY = currentState.cursorY; | |
5050 | } | |
5051 | break; | |
5052 | case 't': | |
5053 | break; | |
5054 | case 'u': | |
5055 | // Restore cursor (ANSI.SYS) | |
5056 | if (type == DeviceType.XTERM) { | |
5057 | cursorPosition(savedState.cursorY, savedState.cursorX); | |
5058 | } | |
5059 | break; | |
5060 | case 'v': | |
5061 | case 'w': | |
5062 | break; | |
5063 | case 'x': | |
5064 | // DECREQTPARM - Request terminal parameters | |
5065 | decreqtparm(); | |
5066 | break; | |
5067 | case 'y': | |
5068 | case 'z': | |
5069 | case '{': | |
5070 | case '|': | |
5071 | case '}': | |
5072 | case '~': | |
5073 | break; | |
5074 | } | |
5075 | toGround(); | |
5076 | } | |
5077 | ||
5078 | // 7F --> ignore | |
5079 | ||
5080 | // 0x9C goes to GROUND | |
5081 | if (ch == 0x9C) { | |
5082 | toGround(); | |
5083 | } | |
5084 | ||
5085 | // 0x3A goes to CSI_IGNORE | |
5086 | if (ch == 0x3A) { | |
5087 | scanState = ScanState.CSI_IGNORE; | |
5088 | } | |
5089 | return; | |
5090 | ||
5091 | case CSI_PARAM: | |
5092 | // 00-17, 19, 1C-1F --> execute | |
5093 | if (ch <= 0x1F) { | |
5094 | handleControlChar(ch); | |
5095 | } | |
5096 | ||
5097 | // 20-2F --> collect, then switch to CSI_INTERMEDIATE | |
5098 | if ((ch >= 0x20) && (ch <= 0x2F)) { | |
5099 | collect(ch); | |
5100 | scanState = ScanState.CSI_INTERMEDIATE; | |
5101 | } | |
5102 | ||
5103 | // 30-39, 3B --> param | |
5104 | if ((ch >= '0') && (ch <= '9')) { | |
5105 | param((byte) ch); | |
5106 | } | |
5107 | if (ch == ';') { | |
5108 | param((byte) ch); | |
5109 | } | |
5110 | ||
5111 | // 0x3A goes to CSI_IGNORE | |
5112 | if (ch == 0x3A) { | |
5113 | scanState = ScanState.CSI_IGNORE; | |
5114 | } | |
5115 | // 0x3C-3F goes to CSI_IGNORE | |
5116 | if ((ch >= 0x3C) && (ch <= 0x3F)) { | |
5117 | scanState = ScanState.CSI_IGNORE; | |
5118 | } | |
5119 | ||
5120 | // 40-7E --> dispatch, then switch to GROUND | |
5121 | if ((ch >= 0x40) && (ch <= 0x7E)) { | |
5122 | switch (ch) { | |
5123 | case '@': | |
5124 | // ICH - Insert character | |
5125 | ich(); | |
5126 | break; | |
5127 | case 'A': | |
5128 | // CUU - Cursor up | |
5129 | cuu(); | |
5130 | break; | |
5131 | case 'B': | |
5132 | // CUD - Cursor down | |
5133 | cud(); | |
5134 | break; | |
5135 | case 'C': | |
5136 | // CUF - Cursor forward | |
5137 | cuf(); | |
5138 | break; | |
5139 | case 'D': | |
5140 | // CUB - Cursor backward | |
5141 | cub(); | |
5142 | break; | |
5143 | case 'E': | |
5144 | // CNL - Cursor down and to column 1 | |
5145 | if (type == DeviceType.XTERM) { | |
5146 | cnl(); | |
5147 | } | |
5148 | break; | |
5149 | case 'F': | |
5150 | // CPL - Cursor up and to column 1 | |
5151 | if (type == DeviceType.XTERM) { | |
5152 | cpl(); | |
5153 | } | |
5154 | break; | |
5155 | case 'G': | |
5156 | // CHA - Cursor to column # in current row | |
5157 | if (type == DeviceType.XTERM) { | |
5158 | cha(); | |
5159 | } | |
5160 | break; | |
5161 | case 'H': | |
5162 | // CUP - Cursor position | |
5163 | cup(); | |
5164 | break; | |
5165 | case 'I': | |
5166 | // CHT - Cursor forward X tab stops (default 1) | |
5167 | if (type == DeviceType.XTERM) { | |
5168 | cht(); | |
5169 | } | |
5170 | break; | |
5171 | case 'J': | |
5172 | // ED - Erase in display | |
5173 | ed(); | |
5174 | break; | |
5175 | case 'K': | |
5176 | // EL - Erase in line | |
5177 | el(); | |
5178 | break; | |
5179 | case 'L': | |
5180 | // IL - Insert line | |
5181 | il(); | |
5182 | break; | |
5183 | case 'M': | |
5184 | // DL - Delete line | |
5185 | dl(); | |
5186 | break; | |
5187 | case 'N': | |
5188 | case 'O': | |
5189 | break; | |
5190 | case 'P': | |
5191 | // DCH - Delete character | |
5192 | dch(); | |
5193 | break; | |
5194 | case 'Q': | |
5195 | case 'R': | |
5196 | break; | |
5197 | case 'S': | |
5198 | // Scroll up X lines (default 1) | |
5199 | if (type == DeviceType.XTERM) { | |
5200 | su(); | |
5201 | } | |
5202 | break; | |
5203 | case 'T': | |
5204 | // Scroll down X lines (default 1) | |
5205 | if (type == DeviceType.XTERM) { | |
5206 | sd(); | |
5207 | } | |
5208 | break; | |
5209 | case 'U': | |
5210 | case 'V': | |
5211 | case 'W': | |
5212 | break; | |
5213 | case 'X': | |
5214 | if ((type == DeviceType.VT220) | |
5215 | || (type == DeviceType.XTERM)) { | |
5216 | ||
5217 | // ECH - Erase character | |
5218 | ech(); | |
5219 | } | |
5220 | break; | |
5221 | case 'Y': | |
5222 | break; | |
5223 | case 'Z': | |
5224 | // CBT - Cursor backward X tab stops (default 1) | |
5225 | if (type == DeviceType.XTERM) { | |
5226 | cbt(); | |
5227 | } | |
5228 | break; | |
5229 | case '[': | |
5230 | case '\\': | |
5231 | case ']': | |
5232 | case '^': | |
5233 | case '_': | |
5234 | break; | |
5235 | case '`': | |
5236 | // HPA - Cursor to column # in current row. Same as CHA | |
5237 | if (type == DeviceType.XTERM) { | |
5238 | cha(); | |
5239 | } | |
5240 | break; | |
5241 | case 'a': | |
5242 | // HPR - Cursor right. Same as CUF | |
5243 | if (type == DeviceType.XTERM) { | |
5244 | cuf(); | |
5245 | } | |
5246 | break; | |
5247 | case 'b': | |
5248 | // REP - Repeat last char X times | |
5249 | if (type == DeviceType.XTERM) { | |
5250 | rep(); | |
5251 | } | |
5252 | break; | |
5253 | case 'c': | |
5254 | // DA - Device attributes | |
5255 | da(); | |
5256 | break; | |
5257 | case 'd': | |
5258 | // VPA - Cursor to row, current column. | |
5259 | if (type == DeviceType.XTERM) { | |
5260 | vpa(); | |
5261 | } | |
5262 | break; | |
5263 | case 'e': | |
5264 | // VPR - Cursor down. Same as CUD | |
5265 | if (type == DeviceType.XTERM) { | |
5266 | cud(); | |
5267 | } | |
5268 | break; | |
5269 | case 'f': | |
5270 | // HVP - Horizontal and vertical position | |
5271 | hvp(); | |
5272 | break; | |
5273 | case 'g': | |
5274 | // TBC - Tabulation clear | |
5275 | tbc(); | |
5276 | break; | |
5277 | case 'h': | |
5278 | // Sets an ANSI or DEC private toggle | |
5279 | setToggle(true); | |
5280 | break; | |
5281 | case 'i': | |
5282 | if ((type == DeviceType.VT220) | |
5283 | || (type == DeviceType.XTERM)) { | |
5284 | ||
5285 | // Printer functions | |
5286 | printerFunctions(); | |
5287 | } | |
5288 | break; | |
5289 | case 'j': | |
5290 | case 'k': | |
5291 | break; | |
5292 | case 'l': | |
5293 | // Sets an ANSI or DEC private toggle | |
5294 | setToggle(false); | |
5295 | break; | |
5296 | case 'm': | |
5297 | // SGR - Select graphics rendition | |
5298 | sgr(); | |
5299 | break; | |
5300 | case 'n': | |
5301 | // DSR - Device status report | |
5302 | dsr(); | |
5303 | break; | |
5304 | case 'o': | |
5305 | case 'p': | |
5306 | break; | |
5307 | case 'q': | |
5308 | // DECLL - Load leds | |
5309 | // Not supported | |
5310 | break; | |
5311 | case 'r': | |
5312 | // DECSTBM - Set top and bottom margins | |
5313 | decstbm(); | |
5314 | break; | |
5315 | case 's': | |
5316 | case 't': | |
5317 | case 'u': | |
5318 | case 'v': | |
5319 | case 'w': | |
5320 | break; | |
5321 | case 'x': | |
5322 | // DECREQTPARM - Request terminal parameters | |
5323 | decreqtparm(); | |
5324 | break; | |
5325 | case 'y': | |
5326 | case 'z': | |
5327 | case '{': | |
5328 | case '|': | |
5329 | case '}': | |
5330 | case '~': | |
5331 | break; | |
5332 | } | |
5333 | toGround(); | |
5334 | } | |
5335 | ||
5336 | // 7F --> ignore | |
5337 | return; | |
5338 | ||
5339 | case CSI_INTERMEDIATE: | |
5340 | // 00-17, 19, 1C-1F --> execute | |
5341 | if (ch <= 0x1F) { | |
5342 | handleControlChar(ch); | |
5343 | } | |
5344 | ||
5345 | // 20-2F --> collect | |
5346 | if ((ch >= 0x20) && (ch <= 0x2F)) { | |
5347 | collect(ch); | |
5348 | } | |
5349 | ||
5350 | // 0x30-3F goes to CSI_IGNORE | |
5351 | if ((ch >= 0x30) && (ch <= 0x3F)) { | |
5352 | scanState = ScanState.CSI_IGNORE; | |
5353 | } | |
5354 | ||
5355 | // 40-7E --> dispatch, then switch to GROUND | |
5356 | if ((ch >= 0x40) && (ch <= 0x7E)) { | |
5357 | switch (ch) { | |
5358 | case '@': | |
5359 | case 'A': | |
5360 | case 'B': | |
5361 | case 'C': | |
5362 | case 'D': | |
5363 | case 'E': | |
5364 | case 'F': | |
5365 | case 'G': | |
5366 | case 'H': | |
5367 | case 'I': | |
5368 | case 'J': | |
5369 | case 'K': | |
5370 | case 'L': | |
5371 | case 'M': | |
5372 | case 'N': | |
5373 | case 'O': | |
5374 | case 'P': | |
5375 | case 'Q': | |
5376 | case 'R': | |
5377 | case 'S': | |
5378 | case 'T': | |
5379 | case 'U': | |
5380 | case 'V': | |
5381 | case 'W': | |
5382 | case 'X': | |
5383 | case 'Y': | |
5384 | case 'Z': | |
5385 | case '[': | |
5386 | case '\\': | |
5387 | case ']': | |
5388 | case '^': | |
5389 | case '_': | |
5390 | case '`': | |
5391 | case 'a': | |
5392 | case 'b': | |
5393 | case 'c': | |
5394 | case 'd': | |
5395 | case 'e': | |
5396 | case 'f': | |
5397 | case 'g': | |
5398 | case 'h': | |
5399 | case 'i': | |
5400 | case 'j': | |
5401 | case 'k': | |
5402 | case 'l': | |
5403 | case 'm': | |
5404 | case 'n': | |
5405 | case 'o': | |
5406 | break; | |
5407 | case 'p': | |
5408 | if (((type == DeviceType.VT220) | |
5409 | || (type == DeviceType.XTERM)) | |
bd8d51fa | 5410 | && (collectBuffer.charAt(collectBuffer.length() - 1) == '\"') |
34a42e78 KL |
5411 | ) { |
5412 | // DECSCL - compatibility level | |
5413 | decscl(); | |
5414 | } | |
5415 | if ((type == DeviceType.XTERM) | |
bd8d51fa | 5416 | && (collectBuffer.charAt(collectBuffer.length() - 1) == '!') |
34a42e78 KL |
5417 | ) { |
5418 | // DECSTR - Soft terminal reset | |
5419 | decstr(); | |
5420 | } | |
5421 | break; | |
5422 | case 'q': | |
5423 | if (((type == DeviceType.VT220) | |
5424 | || (type == DeviceType.XTERM)) | |
bd8d51fa | 5425 | && (collectBuffer.charAt(collectBuffer.length() - 1) == '\"') |
34a42e78 KL |
5426 | ) { |
5427 | // DECSCA | |
5428 | decsca(); | |
5429 | } | |
5430 | break; | |
5431 | case 'r': | |
5432 | case 's': | |
5433 | case 't': | |
5434 | case 'u': | |
5435 | case 'v': | |
5436 | case 'w': | |
5437 | case 'x': | |
5438 | case 'y': | |
5439 | case 'z': | |
5440 | case '{': | |
5441 | case '|': | |
5442 | case '}': | |
5443 | case '~': | |
5444 | break; | |
5445 | } | |
5446 | toGround(); | |
5447 | } | |
5448 | ||
5449 | // 7F --> ignore | |
5450 | return; | |
5451 | ||
5452 | case CSI_IGNORE: | |
5453 | // 00-17, 19, 1C-1F --> execute | |
5454 | if (ch <= 0x1F) { | |
5455 | handleControlChar(ch); | |
5456 | } | |
5457 | ||
5458 | // 20-2F --> collect | |
5459 | if ((ch >= 0x20) && (ch <= 0x2F)) { | |
5460 | collect(ch); | |
5461 | } | |
5462 | ||
5463 | // 40-7E --> ignore, then switch to GROUND | |
5464 | if ((ch >= 0x40) && (ch <= 0x7E)) { | |
5465 | toGround(); | |
5466 | } | |
5467 | ||
5468 | // 20-3F, 7F --> ignore | |
5469 | ||
5470 | return; | |
5471 | ||
5472 | case DCS_ENTRY: | |
5473 | ||
5474 | // 0x9C goes to GROUND | |
5475 | if (ch == 0x9C) { | |
5476 | toGround(); | |
5477 | } | |
5478 | ||
5479 | // 0x1B 0x5C goes to GROUND | |
5480 | if (ch == 0x1B) { | |
5481 | collect(ch); | |
5482 | } | |
5483 | if (ch == 0x5C) { | |
bd8d51fa KL |
5484 | if ((collectBuffer.length() > 0) |
5485 | && (collectBuffer.charAt(collectBuffer.length() - 1) == 0x1B) | |
5486 | ) { | |
34a42e78 KL |
5487 | toGround(); |
5488 | } | |
5489 | } | |
5490 | ||
5491 | // 20-2F --> collect, then switch to DCS_INTERMEDIATE | |
5492 | if ((ch >= 0x20) && (ch <= 0x2F)) { | |
5493 | collect(ch); | |
5494 | scanState = ScanState.DCS_INTERMEDIATE; | |
5495 | } | |
5496 | ||
5497 | // 30-39, 3B --> param, then switch to DCS_PARAM | |
5498 | if ((ch >= '0') && (ch <= '9')) { | |
5499 | param((byte) ch); | |
5500 | scanState = ScanState.DCS_PARAM; | |
5501 | } | |
5502 | if (ch == ';') { | |
5503 | param((byte) ch); | |
5504 | scanState = ScanState.DCS_PARAM; | |
5505 | } | |
5506 | ||
5507 | // 3C-3F --> collect, then switch to DCS_PARAM | |
5508 | if ((ch >= 0x3C) && (ch <= 0x3F)) { | |
5509 | collect(ch); | |
5510 | scanState = ScanState.DCS_PARAM; | |
5511 | } | |
5512 | ||
5513 | // 00-17, 19, 1C-1F, 7F --> ignore | |
5514 | ||
5515 | // 0x3A goes to DCS_IGNORE | |
5516 | if (ch == 0x3F) { | |
5517 | scanState = ScanState.DCS_IGNORE; | |
5518 | } | |
5519 | ||
5520 | // 0x40-7E goes to DCS_PASSTHROUGH | |
5521 | if ((ch >= 0x40) && (ch <= 0x7E)) { | |
5522 | scanState = ScanState.DCS_PASSTHROUGH; | |
5523 | } | |
5524 | return; | |
5525 | ||
5526 | case DCS_INTERMEDIATE: | |
5527 | ||
5528 | // 0x9C goes to GROUND | |
5529 | if (ch == 0x9C) { | |
5530 | toGround(); | |
5531 | } | |
5532 | ||
5533 | // 0x1B 0x5C goes to GROUND | |
5534 | if (ch == 0x1B) { | |
5535 | collect(ch); | |
5536 | } | |
5537 | if (ch == 0x5C) { | |
329fd62e KL |
5538 | if ((collectBuffer.length() > 0) |
5539 | && (collectBuffer.charAt(collectBuffer.length() - 1) == 0x1B) | |
bd8d51fa | 5540 | ) { |
34a42e78 KL |
5541 | toGround(); |
5542 | } | |
5543 | } | |
5544 | ||
5545 | // 0x30-3F goes to DCS_IGNORE | |
5546 | if ((ch >= 0x30) && (ch <= 0x3F)) { | |
5547 | scanState = ScanState.DCS_IGNORE; | |
5548 | } | |
5549 | ||
5550 | // 0x40-7E goes to DCS_PASSTHROUGH | |
5551 | if ((ch >= 0x40) && (ch <= 0x7E)) { | |
5552 | scanState = ScanState.DCS_PASSTHROUGH; | |
5553 | } | |
5554 | ||
5555 | // 00-17, 19, 1C-1F, 7F --> ignore | |
5556 | return; | |
5557 | ||
5558 | case DCS_PARAM: | |
5559 | ||
5560 | // 0x9C goes to GROUND | |
5561 | if (ch == 0x9C) { | |
5562 | toGround(); | |
5563 | } | |
5564 | ||
5565 | // 0x1B 0x5C goes to GROUND | |
5566 | if (ch == 0x1B) { | |
5567 | collect(ch); | |
5568 | } | |
5569 | if (ch == 0x5C) { | |
329fd62e KL |
5570 | if ((collectBuffer.length() > 0) |
5571 | && (collectBuffer.charAt(collectBuffer.length() - 1) == 0x1B) | |
bd8d51fa | 5572 | ) { |
34a42e78 KL |
5573 | toGround(); |
5574 | } | |
5575 | } | |
5576 | ||
5577 | // 20-2F --> collect, then switch to DCS_INTERMEDIATE | |
5578 | if ((ch >= 0x20) && (ch <= 0x2F)) { | |
5579 | collect(ch); | |
5580 | scanState = ScanState.DCS_INTERMEDIATE; | |
5581 | } | |
5582 | ||
5583 | // 30-39, 3B --> param | |
5584 | if ((ch >= '0') && (ch <= '9')) { | |
5585 | param((byte) ch); | |
5586 | } | |
5587 | if (ch == ';') { | |
5588 | param((byte) ch); | |
5589 | } | |
5590 | ||
5591 | // 00-17, 19, 1C-1F, 7F --> ignore | |
5592 | ||
5593 | // 0x3A, 3C-3F goes to DCS_IGNORE | |
5594 | if (ch == 0x3F) { | |
5595 | scanState = ScanState.DCS_IGNORE; | |
5596 | } | |
5597 | if ((ch >= 0x3C) && (ch <= 0x3F)) { | |
5598 | scanState = ScanState.DCS_IGNORE; | |
5599 | } | |
5600 | ||
5601 | // 0x40-7E goes to DCS_PASSTHROUGH | |
5602 | if ((ch >= 0x40) && (ch <= 0x7E)) { | |
5603 | scanState = ScanState.DCS_PASSTHROUGH; | |
5604 | } | |
5605 | return; | |
5606 | ||
5607 | case DCS_PASSTHROUGH: | |
5608 | // 0x9C goes to GROUND | |
5609 | if (ch == 0x9C) { | |
5610 | toGround(); | |
5611 | } | |
5612 | ||
5613 | // 0x1B 0x5C goes to GROUND | |
5614 | if (ch == 0x1B) { | |
5615 | collect(ch); | |
5616 | } | |
5617 | if (ch == 0x5C) { | |
bd8d51fa KL |
5618 | if ((collectBuffer.length() > 0) |
5619 | && (collectBuffer.charAt(collectBuffer.length() - 1) == 0x1B) | |
34a42e78 KL |
5620 | ) { |
5621 | toGround(); | |
5622 | } | |
5623 | } | |
5624 | ||
5625 | // 00-17, 19, 1C-1F, 20-7E --> put | |
5626 | // TODO | |
5627 | if (ch <= 0x17) { | |
5628 | return; | |
5629 | } | |
5630 | if (ch == 0x19) { | |
5631 | return; | |
5632 | } | |
5633 | if ((ch >= 0x1C) && (ch <= 0x1F)) { | |
5634 | return; | |
5635 | } | |
5636 | if ((ch >= 0x20) && (ch <= 0x7E)) { | |
5637 | return; | |
5638 | } | |
5639 | ||
5640 | // 7F --> ignore | |
5641 | ||
5642 | return; | |
5643 | ||
5644 | case DCS_IGNORE: | |
5645 | // 00-17, 19, 1C-1F, 20-7F --> ignore | |
5646 | ||
5647 | // 0x9C goes to GROUND | |
5648 | if (ch == 0x9C) { | |
5649 | toGround(); | |
5650 | } | |
5651 | ||
5652 | return; | |
5653 | ||
5654 | case SOSPMAPC_STRING: | |
5655 | // 00-17, 19, 1C-1F, 20-7F --> ignore | |
5656 | ||
5657 | // 0x9C goes to GROUND | |
5658 | if (ch == 0x9C) { | |
5659 | toGround(); | |
5660 | } | |
5661 | ||
5662 | return; | |
5663 | ||
5664 | case OSC_STRING: | |
5665 | // Special case for Xterm: OSC can pass control characters | |
5666 | if ((ch == 0x9C) || (ch <= 0x07)) { | |
5667 | oscPut(ch); | |
5668 | } | |
5669 | ||
5670 | // 00-17, 19, 1C-1F --> ignore | |
5671 | ||
5672 | // 20-7F --> osc_put | |
5673 | if ((ch >= 0x20) && (ch <= 0x7F)) { | |
5674 | oscPut(ch); | |
5675 | } | |
5676 | ||
5677 | // 0x9C goes to GROUND | |
5678 | if (ch == 0x9C) { | |
5679 | toGround(); | |
5680 | } | |
5681 | ||
5682 | return; | |
5683 | ||
5684 | case VT52_DIRECT_CURSOR_ADDRESS: | |
5685 | // This is a special case for the VT52 sequence "ESC Y l c" | |
bd8d51fa | 5686 | if (collectBuffer.length() == 0) { |
34a42e78 | 5687 | collect(ch); |
bd8d51fa | 5688 | } else if (collectBuffer.length() == 1) { |
34a42e78 KL |
5689 | // We've got the two characters, one in the buffer and the |
5690 | // other in ch. | |
bd8d51fa | 5691 | cursorPosition(collectBuffer.charAt(0) - '\040', ch - '\040'); |
34a42e78 KL |
5692 | toGround(); |
5693 | } | |
5694 | return; | |
5695 | } | |
5696 | ||
5697 | } | |
5698 | ||
5699 | /** | |
5700 | * Expose current cursor X to outside world. | |
5701 | * | |
5702 | * @return current cursor X | |
5703 | */ | |
5704 | public final int getCursorX() { | |
bd8d51fa KL |
5705 | if (display.get(currentState.cursorY).isDoubleWidth()) { |
5706 | return currentState.cursorX * 2; | |
5707 | } | |
34a42e78 KL |
5708 | return currentState.cursorX; |
5709 | } | |
5710 | ||
5711 | /** | |
5712 | * Expose current cursor Y to outside world. | |
5713 | * | |
5714 | * @return current cursor Y | |
5715 | */ | |
5716 | public final int getCursorY() { | |
5717 | return currentState.cursorY; | |
5718 | } | |
5719 | ||
5720 | /** | |
5721 | * Read function runs on a separate thread. | |
5722 | */ | |
329fd62e | 5723 | public final void run() { |
34a42e78 KL |
5724 | boolean utf8 = false; |
5725 | boolean done = false; | |
5726 | ||
5727 | if (type == DeviceType.XTERM) { | |
5728 | utf8 = true; | |
5729 | } | |
5730 | ||
5731 | // available() will often return > 1, so we need to read in chunks to | |
5732 | // stay caught up. | |
5733 | char [] readBufferUTF8 = null; | |
5734 | byte [] readBuffer = null; | |
5735 | if (utf8) { | |
5736 | readBufferUTF8 = new char[128]; | |
5737 | } else { | |
5738 | readBuffer = new byte[128]; | |
5739 | } | |
5740 | ||
5741 | while (!done && !stopReaderThread) { | |
5742 | try { | |
34a42e78 | 5743 | int n = inputStream.available(); |
bb35d919 KL |
5744 | // System.err.printf("available() %d\n", n); System.err.flush(); |
5745 | if (utf8) { | |
5746 | if (readBufferUTF8.length < n) { | |
5747 | // The buffer wasn't big enough, make it huger | |
5748 | int newSizeHalf = Math.max(readBufferUTF8.length, n); | |
34a42e78 | 5749 | |
bb35d919 | 5750 | readBufferUTF8 = new char[newSizeHalf * 2]; |
34a42e78 | 5751 | } |
bb35d919 KL |
5752 | } else { |
5753 | if (readBuffer.length < n) { | |
5754 | // The buffer wasn't big enough, make it huger | |
5755 | int newSizeHalf = Math.max(readBuffer.length, n); | |
5756 | readBuffer = new byte[newSizeHalf * 2]; | |
34a42e78 | 5757 | } |
bb35d919 KL |
5758 | } |
5759 | ||
5760 | int rc = -1; | |
5761 | if (utf8) { | |
5762 | rc = input.read(readBufferUTF8, 0, | |
5763 | readBufferUTF8.length); | |
34a42e78 | 5764 | } else { |
bb35d919 KL |
5765 | rc = inputStream.read(readBuffer, 0, |
5766 | readBuffer.length); | |
5767 | } | |
5768 | // System.err.printf("read() %d\n", rc); System.err.flush(); | |
5769 | if (rc == -1) { | |
5770 | // This is EOF | |
5771 | done = true; | |
5772 | } else { | |
5773 | for (int i = 0; i < rc; i++) { | |
5774 | int ch = 0; | |
5775 | if (utf8) { | |
5776 | ch = readBufferUTF8[i]; | |
5777 | } else { | |
5778 | ch = readBuffer[i]; | |
5779 | } | |
5780 | // Don't step on UI events | |
5781 | synchronized (this) { | |
5782 | consume((char)ch); | |
5783 | } | |
5784 | } | |
34a42e78 KL |
5785 | } |
5786 | // System.err.println("end while loop"); System.err.flush(); | |
34a42e78 KL |
5787 | } catch (IOException e) { |
5788 | e.printStackTrace(); | |
5789 | done = true; | |
5790 | } | |
5791 | } // while ((done == false) && (stopReaderThread == false)) | |
5792 | ||
34a42e78 KL |
5793 | // Let the rest of the world know that I am done. |
5794 | stopReaderThread = true; | |
5795 | ||
5796 | // System.err.println("*** run() exiting..."); System.err.flush(); | |
5797 | } | |
5798 | ||
5799 | } |