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1 | /** | |
2 | * @license MIT | |
3 | */ | |
4 | ||
5 | import { IInputHandler, ITerminal } from './Interfaces'; | |
6 | import { C0 } from './EscapeSequences'; | |
7 | import { DEFAULT_CHARSET } from './Charsets'; | |
8 | ||
9 | /** | |
10 | * The terminal's standard implementation of IInputHandler, this handles all | |
11 | * input from the Parser. | |
12 | * | |
13 | * Refer to http://invisible-island.net/xterm/ctlseqs/ctlseqs.html to understand | |
14 | * each function's header comment. | |
15 | */ | |
16 | export class InputHandler implements IInputHandler { | |
17 | // TODO: We want to type _terminal when it's pulled into TS | |
18 | constructor(private _terminal: any) { } | |
19 | ||
20 | public addChar(char: string, code: number): void { | |
21 | if (char >= ' ') { | |
22 | // calculate print space | |
23 | // expensive call, therefore we save width in line buffer | |
24 | const ch_width = wcwidth(code); | |
25 | ||
26 | if (this._terminal.charset && this._terminal.charset[char]) { | |
27 | char = this._terminal.charset[char]; | |
28 | } | |
29 | ||
30 | let row = this._terminal.y + this._terminal.ybase; | |
31 | ||
32 | // insert combining char in last cell | |
33 | // FIXME: needs handling after cursor jumps | |
34 | if (!ch_width && this._terminal.x) { | |
35 | // dont overflow left | |
36 | if (this._terminal.lines.get(row)[this._terminal.x - 1]) { | |
37 | if (!this._terminal.lines.get(row)[this._terminal.x - 1][2]) { | |
38 | ||
39 | // found empty cell after fullwidth, need to go 2 cells back | |
40 | if (this._terminal.lines.get(row)[this._terminal.x - 2]) | |
41 | this._terminal.lines.get(row)[this._terminal.x - 2][1] += char; | |
42 | ||
43 | } else { | |
44 | this._terminal.lines.get(row)[this._terminal.x - 1][1] += char; | |
45 | } | |
46 | this._terminal.updateRange(this._terminal.y); | |
47 | } | |
48 | return; | |
49 | } | |
50 | ||
51 | // goto next line if ch would overflow | |
52 | // TODO: needs a global min terminal width of 2 | |
53 | if (this._terminal.x + ch_width - 1 >= this._terminal.cols) { | |
54 | // autowrap - DECAWM | |
55 | if (this._terminal.wraparoundMode) { | |
56 | this._terminal.x = 0; | |
57 | this._terminal.y++; | |
58 | if (this._terminal.y > this._terminal.scrollBottom) { | |
59 | this._terminal.y--; | |
60 | this._terminal.scroll(true); | |
61 | } | |
62 | } else { | |
63 | if (ch_width === 2) // FIXME: check for xterm behavior | |
64 | return; | |
65 | } | |
66 | } | |
67 | row = this._terminal.y + this._terminal.ybase; | |
68 | ||
69 | // insert mode: move characters to right | |
70 | if (this._terminal.insertMode) { | |
71 | // do this twice for a fullwidth char | |
72 | for (let moves = 0; moves < ch_width; ++moves) { | |
73 | // remove last cell, if it's width is 0 | |
74 | // we have to adjust the second last cell as well | |
75 | const removed = this._terminal.lines.get(this._terminal.y + this._terminal.ybase).pop(); | |
76 | if (removed[2] === 0 | |
77 | && this._terminal.lines.get(row)[this._terminal.cols - 2] | |
78 | && this._terminal.lines.get(row)[this._terminal.cols - 2][2] === 2) { | |
79 | this._terminal.lines.get(row)[this._terminal.cols - 2] = [this._terminal.curAttr, ' ', 1]; | |
80 | } | |
81 | ||
82 | // insert empty cell at cursor | |
83 | this._terminal.lines.get(row).splice(this._terminal.x, 0, [this._terminal.curAttr, ' ', 1]); | |
84 | } | |
85 | } | |
86 | ||
87 | this._terminal.lines.get(row)[this._terminal.x] = [this._terminal.curAttr, char, ch_width]; | |
88 | this._terminal.x++; | |
89 | this._terminal.updateRange(this._terminal.y); | |
90 | ||
91 | // fullwidth char - set next cell width to zero and advance cursor | |
92 | if (ch_width === 2) { | |
93 | this._terminal.lines.get(row)[this._terminal.x] = [this._terminal.curAttr, '', 0]; | |
94 | this._terminal.x++; | |
95 | } | |
96 | } | |
97 | } | |
98 | ||
99 | /** | |
100 | * BEL | |
101 | * Bell (Ctrl-G). | |
102 | */ | |
103 | public bell(): void { | |
104 | if (!this._terminal.visualBell) { | |
105 | return; | |
106 | } | |
107 | this._terminal.element.style.borderColor = 'white'; | |
108 | setTimeout(() => this._terminal.element.style.borderColor = '', 10); | |
109 | if (this._terminal.popOnBell) { | |
110 | this._terminal.focus(); | |
111 | } | |
112 | } | |
113 | ||
114 | /** | |
115 | * LF | |
116 | * Line Feed or New Line (NL). (LF is Ctrl-J). | |
117 | */ | |
118 | public lineFeed(): void { | |
119 | if (this._terminal.convertEol) { | |
120 | this._terminal.x = 0; | |
121 | } | |
122 | this._terminal.y++; | |
123 | if (this._terminal.y > this._terminal.scrollBottom) { | |
124 | this._terminal.y--; | |
125 | this._terminal.scroll(); | |
126 | } | |
127 | // If the end of the line is hit, prevent this action from wrapping around to the next line. | |
128 | if (this._terminal.x >= this._terminal.cols) { | |
129 | this._terminal.x--; | |
130 | } | |
131 | } | |
132 | ||
133 | /** | |
134 | * CR | |
135 | * Carriage Return (Ctrl-M). | |
136 | */ | |
137 | public carriageReturn(): void { | |
138 | this._terminal.x = 0; | |
139 | } | |
140 | ||
141 | /** | |
142 | * BS | |
143 | * Backspace (Ctrl-H). | |
144 | */ | |
145 | public backspace(): void { | |
146 | if (this._terminal.x > 0) { | |
147 | this._terminal.x--; | |
148 | } | |
149 | } | |
150 | ||
151 | /** | |
152 | * TAB | |
153 | * Horizontal Tab (HT) (Ctrl-I). | |
154 | */ | |
155 | public tab(): void { | |
156 | this._terminal.x = this._terminal.nextStop(); | |
157 | } | |
158 | ||
159 | /** | |
160 | * SO | |
161 | * Shift Out (Ctrl-N) -> Switch to Alternate Character Set. This invokes the | |
162 | * G1 character set. | |
163 | */ | |
164 | public shiftOut(): void { | |
165 | this._terminal.setgLevel(1); | |
166 | } | |
167 | ||
168 | /** | |
169 | * SI | |
170 | * Shift In (Ctrl-O) -> Switch to Standard Character Set. This invokes the G0 | |
171 | * character set (the default). | |
172 | */ | |
173 | public shiftIn(): void { | |
174 | this._terminal.setgLevel(0); | |
175 | } | |
176 | ||
177 | /** | |
178 | * CSI Ps @ | |
179 | * Insert Ps (Blank) Character(s) (default = 1) (ICH). | |
180 | */ | |
181 | public insertChars(params: number[]): void { | |
182 | let param, row, j, ch; | |
183 | ||
184 | param = params[0]; | |
185 | if (param < 1) param = 1; | |
186 | ||
187 | row = this._terminal.y + this._terminal.ybase; | |
188 | j = this._terminal.x; | |
189 | ch = [this._terminal.eraseAttr(), ' ', 1]; // xterm | |
190 | ||
191 | while (param-- && j < this._terminal.cols) { | |
192 | this._terminal.lines.get(row).splice(j++, 0, ch); | |
193 | this._terminal.lines.get(row).pop(); | |
194 | } | |
195 | } | |
196 | ||
197 | /** | |
198 | * CSI Ps A | |
199 | * Cursor Up Ps Times (default = 1) (CUU). | |
200 | */ | |
201 | public cursorUp(params: number[]): void { | |
202 | let param = params[0]; | |
203 | if (param < 1) { | |
204 | param = 1; | |
205 | } | |
206 | this._terminal.y -= param; | |
207 | if (this._terminal.y < 0) { | |
208 | this._terminal.y = 0; | |
209 | } | |
210 | } | |
211 | ||
212 | /** | |
213 | * CSI Ps B | |
214 | * Cursor Down Ps Times (default = 1) (CUD). | |
215 | */ | |
216 | public cursorDown(params: number[]) { | |
217 | let param = params[0]; | |
218 | if (param < 1) { | |
219 | param = 1; | |
220 | } | |
221 | this._terminal.y += param; | |
222 | if (this._terminal.y >= this._terminal.rows) { | |
223 | this._terminal.y = this._terminal.rows - 1; | |
224 | } | |
225 | // If the end of the line is hit, prevent this action from wrapping around to the next line. | |
226 | if (this._terminal.x >= this._terminal.cols) { | |
227 | this._terminal.x--; | |
228 | } | |
229 | } | |
230 | ||
231 | /** | |
232 | * CSI Ps C | |
233 | * Cursor Forward Ps Times (default = 1) (CUF). | |
234 | */ | |
235 | public cursorForward(params: number[]) { | |
236 | let param = params[0]; | |
237 | if (param < 1) { | |
238 | param = 1; | |
239 | } | |
240 | this._terminal.x += param; | |
241 | if (this._terminal.x >= this._terminal.cols) { | |
242 | this._terminal.x = this._terminal.cols - 1; | |
243 | } | |
244 | } | |
245 | ||
246 | /** | |
247 | * CSI Ps D | |
248 | * Cursor Backward Ps Times (default = 1) (CUB). | |
249 | */ | |
250 | public cursorBackward(params: number[]) { | |
251 | let param = params[0]; | |
252 | if (param < 1) { | |
253 | param = 1; | |
254 | } | |
255 | // If the end of the line is hit, prevent this action from wrapping around to the next line. | |
256 | if (this._terminal.x >= this._terminal.cols) { | |
257 | this._terminal.x--; | |
258 | } | |
259 | this._terminal.x -= param; | |
260 | if (this._terminal.x < 0) { | |
261 | this._terminal.x = 0; | |
262 | } | |
263 | } | |
264 | ||
265 | /** | |
266 | * CSI Ps E | |
267 | * Cursor Next Line Ps Times (default = 1) (CNL). | |
268 | * same as CSI Ps B ? | |
269 | */ | |
270 | public cursorNextLine(params: number[]): void { | |
271 | let param = params[0]; | |
272 | if (param < 1) { | |
273 | param = 1; | |
274 | } | |
275 | this._terminal.y += param; | |
276 | if (this._terminal.y >= this._terminal.rows) { | |
277 | this._terminal.y = this._terminal.rows - 1; | |
278 | } | |
279 | this._terminal.x = 0; | |
280 | }; | |
281 | ||
282 | ||
283 | /** | |
284 | * CSI Ps F | |
285 | * Cursor Preceding Line Ps Times (default = 1) (CNL). | |
286 | * reuse CSI Ps A ? | |
287 | */ | |
288 | public cursorPrecedingLine(params: number[]): void { | |
289 | let param = params[0]; | |
290 | if (param < 1) { | |
291 | param = 1; | |
292 | } | |
293 | this._terminal.y -= param; | |
294 | if (this._terminal.y < 0) { | |
295 | this._terminal.y = 0; | |
296 | } | |
297 | this._terminal.x = 0; | |
298 | }; | |
299 | ||
300 | ||
301 | /** | |
302 | * CSI Ps G | |
303 | * Cursor Character Absolute [column] (default = [row,1]) (CHA). | |
304 | */ | |
305 | public cursorCharAbsolute(params: number[]): void { | |
306 | let param = params[0]; | |
307 | if (param < 1) { | |
308 | param = 1; | |
309 | } | |
310 | this._terminal.x = param - 1; | |
311 | } | |
312 | ||
313 | /** | |
314 | * CSI Ps ; Ps H | |
315 | * Cursor Position [row;column] (default = [1,1]) (CUP). | |
316 | */ | |
317 | public cursorPosition(params: number[]): void { | |
318 | let row, col; | |
319 | ||
320 | row = params[0] - 1; | |
321 | ||
322 | if (params.length >= 2) { | |
323 | col = params[1] - 1; | |
324 | } else { | |
325 | col = 0; | |
326 | } | |
327 | ||
328 | if (row < 0) { | |
329 | row = 0; | |
330 | } else if (row >= this._terminal.rows) { | |
331 | row = this._terminal.rows - 1; | |
332 | } | |
333 | ||
334 | if (col < 0) { | |
335 | col = 0; | |
336 | } else if (col >= this._terminal.cols) { | |
337 | col = this._terminal.cols - 1; | |
338 | } | |
339 | ||
340 | this._terminal.x = col; | |
341 | this._terminal.y = row; | |
342 | } | |
343 | ||
344 | /** | |
345 | * CSI Ps I | |
346 | * Cursor Forward Tabulation Ps tab stops (default = 1) (CHT). | |
347 | */ | |
348 | public cursorForwardTab(params: number[]): void { | |
349 | let param = params[0] || 1; | |
350 | while (param--) { | |
351 | this._terminal.x = this._terminal.nextStop(); | |
352 | } | |
353 | } | |
354 | ||
355 | /** | |
356 | * CSI Ps J Erase in Display (ED). | |
357 | * Ps = 0 -> Erase Below (default). | |
358 | * Ps = 1 -> Erase Above. | |
359 | * Ps = 2 -> Erase All. | |
360 | * Ps = 3 -> Erase Saved Lines (xterm). | |
361 | * CSI ? Ps J | |
362 | * Erase in Display (DECSED). | |
363 | * Ps = 0 -> Selective Erase Below (default). | |
364 | * Ps = 1 -> Selective Erase Above. | |
365 | * Ps = 2 -> Selective Erase All. | |
366 | */ | |
367 | public eraseInDisplay(params: number[]): void { | |
368 | let j; | |
369 | switch (params[0]) { | |
370 | case 0: | |
371 | this._terminal.eraseRight(this._terminal.x, this._terminal.y); | |
372 | j = this._terminal.y + 1; | |
373 | for (; j < this._terminal.rows; j++) { | |
374 | this._terminal.eraseLine(j); | |
375 | } | |
376 | break; | |
377 | case 1: | |
378 | this._terminal.eraseLeft(this._terminal.x, this._terminal.y); | |
379 | j = this._terminal.y; | |
380 | while (j--) { | |
381 | this._terminal.eraseLine(j); | |
382 | } | |
383 | break; | |
384 | case 2: | |
385 | j = this._terminal.rows; | |
386 | while (j--) this._terminal.eraseLine(j); | |
387 | break; | |
388 | case 3: | |
389 | // Clear scrollback (everything not in viewport) | |
390 | const scrollBackSize = this._terminal.lines.length - this._terminal.rows; | |
391 | if (scrollBackSize > 0) { | |
392 | this._terminal.lines.trimStart(scrollBackSize); | |
393 | this._terminal.ybase = Math.max(this._terminal.ybase - scrollBackSize, 0); | |
394 | this._terminal.ydisp = Math.max(this._terminal.ydisp - scrollBackSize, 0); | |
395 | } | |
396 | break; | |
397 | } | |
398 | } | |
399 | ||
400 | /** | |
401 | * CSI Ps K Erase in Line (EL). | |
402 | * Ps = 0 -> Erase to Right (default). | |
403 | * Ps = 1 -> Erase to Left. | |
404 | * Ps = 2 -> Erase All. | |
405 | * CSI ? Ps K | |
406 | * Erase in Line (DECSEL). | |
407 | * Ps = 0 -> Selective Erase to Right (default). | |
408 | * Ps = 1 -> Selective Erase to Left. | |
409 | * Ps = 2 -> Selective Erase All. | |
410 | */ | |
411 | public eraseInLine(params: number[]): void { | |
412 | switch (params[0]) { | |
413 | case 0: | |
414 | this._terminal.eraseRight(this._terminal.x, this._terminal.y); | |
415 | break; | |
416 | case 1: | |
417 | this._terminal.eraseLeft(this._terminal.x, this._terminal.y); | |
418 | break; | |
419 | case 2: | |
420 | this._terminal.eraseLine(this._terminal.y); | |
421 | break; | |
422 | } | |
423 | } | |
424 | ||
425 | /** | |
426 | * CSI Ps L | |
427 | * Insert Ps Line(s) (default = 1) (IL). | |
428 | */ | |
429 | public insertLines(params: number[]): void { | |
430 | let param, row, j; | |
431 | ||
432 | param = params[0]; | |
433 | if (param < 1) { | |
434 | param = 1; | |
435 | } | |
436 | row = this._terminal.y + this._terminal.ybase; | |
437 | ||
438 | j = this._terminal.rows - 1 - this._terminal.scrollBottom; | |
439 | j = this._terminal.rows - 1 + this._terminal.ybase - j + 1; | |
440 | ||
441 | while (param--) { | |
442 | if (this._terminal.lines.length === this._terminal.lines.maxLength) { | |
443 | // Trim the start of lines to make room for the new line | |
444 | this._terminal.lines.trimStart(1); | |
445 | this._terminal.ybase--; | |
446 | this._terminal.ydisp--; | |
447 | row--; | |
448 | j--; | |
449 | } | |
450 | // test: echo -e '\e[44m\e[1L\e[0m' | |
451 | // blankLine(true) - xterm/linux behavior | |
452 | this._terminal.lines.splice(row, 0, this._terminal.blankLine(true)); | |
453 | this._terminal.lines.splice(j, 1); | |
454 | } | |
455 | ||
456 | // this.maxRange(); | |
457 | this._terminal.updateRange(this._terminal.y); | |
458 | this._terminal.updateRange(this._terminal.scrollBottom); | |
459 | } | |
460 | ||
461 | /** | |
462 | * CSI Ps M | |
463 | * Delete Ps Line(s) (default = 1) (DL). | |
464 | */ | |
465 | public deleteLines(params: number[]): void { | |
466 | let param, row, j; | |
467 | ||
468 | param = params[0]; | |
469 | if (param < 1) { | |
470 | param = 1; | |
471 | } | |
472 | row = this._terminal.y + this._terminal.ybase; | |
473 | ||
474 | j = this._terminal.rows - 1 - this._terminal.scrollBottom; | |
475 | j = this._terminal.rows - 1 + this._terminal.ybase - j; | |
476 | ||
477 | while (param--) { | |
478 | if (this._terminal.lines.length === this._terminal.lines.maxLength) { | |
479 | // Trim the start of lines to make room for the new line | |
480 | this._terminal.lines.trimStart(1); | |
481 | this._terminal.ybase -= 1; | |
482 | this._terminal.ydisp -= 1; | |
483 | } | |
484 | // test: echo -e '\e[44m\e[1M\e[0m' | |
485 | // blankLine(true) - xterm/linux behavior | |
486 | this._terminal.lines.splice(j + 1, 0, this._terminal.blankLine(true)); | |
487 | this._terminal.lines.splice(row, 1); | |
488 | } | |
489 | ||
490 | // this.maxRange(); | |
491 | this._terminal.updateRange(this._terminal.y); | |
492 | this._terminal.updateRange(this._terminal.scrollBottom); | |
493 | } | |
494 | ||
495 | /** | |
496 | * CSI Ps P | |
497 | * Delete Ps Character(s) (default = 1) (DCH). | |
498 | */ | |
499 | public deleteChars(params: number[]): void { | |
500 | let param, row, ch; | |
501 | ||
502 | param = params[0]; | |
503 | if (param < 1) { | |
504 | param = 1; | |
505 | } | |
506 | ||
507 | row = this._terminal.y + this._terminal.ybase; | |
508 | ch = [this._terminal.eraseAttr(), ' ', 1]; // xterm | |
509 | ||
510 | while (param--) { | |
511 | this._terminal.lines.get(row).splice(this._terminal.x, 1); | |
512 | this._terminal.lines.get(row).push(ch); | |
513 | } | |
514 | } | |
515 | ||
516 | /** | |
517 | * CSI Ps S Scroll up Ps lines (default = 1) (SU). | |
518 | */ | |
519 | public scrollUp(params: number[]): void { | |
520 | let param = params[0] || 1; | |
521 | while (param--) { | |
522 | this._terminal.lines.splice(this._terminal.ybase + this._terminal.scrollTop, 1); | |
523 | this._terminal.lines.splice(this._terminal.ybase + this._terminal.scrollBottom, 0, this._terminal.blankLine()); | |
524 | } | |
525 | // this.maxRange(); | |
526 | this._terminal.updateRange(this._terminal.scrollTop); | |
527 | this._terminal.updateRange(this._terminal.scrollBottom); | |
528 | } | |
529 | ||
530 | /** | |
531 | * CSI Ps T Scroll down Ps lines (default = 1) (SD). | |
532 | */ | |
533 | public scrollDown(params: number[]): void { | |
534 | let param = params[0] || 1; | |
535 | while (param--) { | |
536 | this._terminal.lines.splice(this._terminal.ybase + this._terminal.scrollBottom, 1); | |
537 | this._terminal.lines.splice(this._terminal.ybase + this._terminal.scrollTop, 0, this._terminal.blankLine()); | |
538 | } | |
539 | // this.maxRange(); | |
540 | this._terminal.updateRange(this._terminal.scrollTop); | |
541 | this._terminal.updateRange(this._terminal.scrollBottom); | |
542 | } | |
543 | ||
544 | /** | |
545 | * CSI Ps X | |
546 | * Erase Ps Character(s) (default = 1) (ECH). | |
547 | */ | |
548 | public eraseChars(params: number[]): void { | |
549 | let param, row, j, ch; | |
550 | ||
551 | param = params[0]; | |
552 | if (param < 1) { | |
553 | param = 1; | |
554 | } | |
555 | ||
556 | row = this._terminal.y + this._terminal.ybase; | |
557 | j = this._terminal.x; | |
558 | ch = [this._terminal.eraseAttr(), ' ', 1]; // xterm | |
559 | ||
560 | while (param-- && j < this._terminal.cols) { | |
561 | this._terminal.lines.get(row)[j++] = ch; | |
562 | } | |
563 | } | |
564 | ||
565 | /** | |
566 | * CSI Ps Z Cursor Backward Tabulation Ps tab stops (default = 1) (CBT). | |
567 | */ | |
568 | public cursorBackwardTab(params: number[]): void { | |
569 | let param = params[0] || 1; | |
570 | while (param--) { | |
571 | this._terminal.x = this._terminal.prevStop(); | |
572 | } | |
573 | } | |
574 | ||
575 | /** | |
576 | * CSI Pm ` Character Position Absolute | |
577 | * [column] (default = [row,1]) (HPA). | |
578 | */ | |
579 | public charPosAbsolute(params: number[]): void { | |
580 | let param = params[0]; | |
581 | if (param < 1) { | |
582 | param = 1; | |
583 | } | |
584 | this._terminal.x = param - 1; | |
585 | if (this._terminal.x >= this._terminal.cols) { | |
586 | this._terminal.x = this._terminal.cols - 1; | |
587 | } | |
588 | } | |
589 | ||
590 | /** | |
591 | * CSI Pm a Character Position Relative | |
592 | * [columns] (default = [row,col+1]) (HPR) | |
593 | * reuse CSI Ps C ? | |
594 | */ | |
595 | public HPositionRelative(params: number[]): void { | |
596 | let param = params[0]; | |
597 | if (param < 1) { | |
598 | param = 1; | |
599 | } | |
600 | this._terminal.x += param; | |
601 | if (this._terminal.x >= this._terminal.cols) { | |
602 | this._terminal.x = this._terminal.cols - 1; | |
603 | } | |
604 | } | |
605 | ||
606 | /** | |
607 | * CSI Ps b Repeat the preceding graphic character Ps times (REP). | |
608 | */ | |
609 | public repeatPrecedingCharacter(params: number[]): void { | |
610 | let param = params[0] || 1 | |
611 | , line = this._terminal.lines.get(this._terminal.ybase + this._terminal.y) | |
612 | , ch = line[this._terminal.x - 1] || [this._terminal.defAttr, ' ', 1]; | |
613 | ||
614 | while (param--) { | |
615 | line[this._terminal.x++] = ch; | |
616 | } | |
617 | } | |
618 | ||
619 | /** | |
620 | * CSI Ps c Send Device Attributes (Primary DA). | |
621 | * Ps = 0 or omitted -> request attributes from terminal. The | |
622 | * response depends on the decTerminalID resource setting. | |
623 | * -> CSI ? 1 ; 2 c (``VT100 with Advanced Video Option'') | |
624 | * -> CSI ? 1 ; 0 c (``VT101 with No Options'') | |
625 | * -> CSI ? 6 c (``VT102'') | |
626 | * -> CSI ? 6 0 ; 1 ; 2 ; 6 ; 8 ; 9 ; 1 5 ; c (``VT220'') | |
627 | * The VT100-style response parameters do not mean anything by | |
628 | * themselves. VT220 parameters do, telling the host what fea- | |
629 | * tures the terminal supports: | |
630 | * Ps = 1 -> 132-columns. | |
631 | * Ps = 2 -> Printer. | |
632 | * Ps = 6 -> Selective erase. | |
633 | * Ps = 8 -> User-defined keys. | |
634 | * Ps = 9 -> National replacement character sets. | |
635 | * Ps = 1 5 -> Technical characters. | |
636 | * Ps = 2 2 -> ANSI color, e.g., VT525. | |
637 | * Ps = 2 9 -> ANSI text locator (i.e., DEC Locator mode). | |
638 | * CSI > Ps c | |
639 | * Send Device Attributes (Secondary DA). | |
640 | * Ps = 0 or omitted -> request the terminal's identification | |
641 | * code. The response depends on the decTerminalID resource set- | |
642 | * ting. It should apply only to VT220 and up, but xterm extends | |
643 | * this to VT100. | |
644 | * -> CSI > Pp ; Pv ; Pc c | |
645 | * where Pp denotes the terminal type | |
646 | * Pp = 0 -> ``VT100''. | |
647 | * Pp = 1 -> ``VT220''. | |
648 | * and Pv is the firmware version (for xterm, this was originally | |
649 | * the XFree86 patch number, starting with 95). In a DEC termi- | |
650 | * nal, Pc indicates the ROM cartridge registration number and is | |
651 | * always zero. | |
652 | * More information: | |
653 | * xterm/charproc.c - line 2012, for more information. | |
654 | * vim responds with ^[[?0c or ^[[?1c after the terminal's response (?) | |
655 | */ | |
656 | public sendDeviceAttributes(params: number[]): void { | |
657 | if (params[0] > 0) { | |
658 | return; | |
659 | } | |
660 | ||
661 | if (!this._terminal.prefix) { | |
662 | if (this._terminal.is('xterm') || this._terminal.is('rxvt-unicode') || this._terminal.is('screen')) { | |
663 | this._terminal.send(C0.ESC + '[?1;2c'); | |
664 | } else if (this._terminal.is('linux')) { | |
665 | this._terminal.send(C0.ESC + '[?6c'); | |
666 | } | |
667 | } else if (this._terminal.prefix === '>') { | |
668 | // xterm and urxvt | |
669 | // seem to spit this | |
670 | // out around ~370 times (?). | |
671 | if (this._terminal.is('xterm')) { | |
672 | this._terminal.send(C0.ESC + '[>0;276;0c'); | |
673 | } else if (this._terminal.is('rxvt-unicode')) { | |
674 | this._terminal.send(C0.ESC + '[>85;95;0c'); | |
675 | } else if (this._terminal.is('linux')) { | |
676 | // not supported by linux console. | |
677 | // linux console echoes parameters. | |
678 | this._terminal.send(params[0] + 'c'); | |
679 | } else if (this._terminal.is('screen')) { | |
680 | this._terminal.send(C0.ESC + '[>83;40003;0c'); | |
681 | } | |
682 | } | |
683 | } | |
684 | ||
685 | /** | |
686 | * CSI Pm d Vertical Position Absolute (VPA) | |
687 | * [row] (default = [1,column]) | |
688 | */ | |
689 | public linePosAbsolute(params: number[]): void { | |
690 | let param = params[0]; | |
691 | if (param < 1) { | |
692 | param = 1; | |
693 | } | |
694 | this._terminal.y = param - 1; | |
695 | if (this._terminal.y >= this._terminal.rows) { | |
696 | this._terminal.y = this._terminal.rows - 1; | |
697 | } | |
698 | } | |
699 | ||
700 | /** | |
701 | * CSI Pm e Vertical Position Relative (VPR) | |
702 | * [rows] (default = [row+1,column]) | |
703 | * reuse CSI Ps B ? | |
704 | */ | |
705 | public VPositionRelative(params: number[]): void { | |
706 | let param = params[0]; | |
707 | if (param < 1) { | |
708 | param = 1; | |
709 | } | |
710 | this._terminal.y += param; | |
711 | if (this._terminal.y >= this._terminal.rows) { | |
712 | this._terminal.y = this._terminal.rows - 1; | |
713 | } | |
714 | // If the end of the line is hit, prevent this action from wrapping around to the next line. | |
715 | if (this._terminal.x >= this._terminal.cols) { | |
716 | this._terminal.x--; | |
717 | } | |
718 | } | |
719 | ||
720 | /** | |
721 | * CSI Ps ; Ps f | |
722 | * Horizontal and Vertical Position [row;column] (default = | |
723 | * [1,1]) (HVP). | |
724 | */ | |
725 | public HVPosition(params: number[]): void { | |
726 | if (params[0] < 1) params[0] = 1; | |
727 | if (params[1] < 1) params[1] = 1; | |
728 | ||
729 | this._terminal.y = params[0] - 1; | |
730 | if (this._terminal.y >= this._terminal.rows) { | |
731 | this._terminal.y = this._terminal.rows - 1; | |
732 | } | |
733 | ||
734 | this._terminal.x = params[1] - 1; | |
735 | if (this._terminal.x >= this._terminal.cols) { | |
736 | this._terminal.x = this._terminal.cols - 1; | |
737 | } | |
738 | } | |
739 | ||
740 | /** | |
741 | * CSI Ps g Tab Clear (TBC). | |
742 | * Ps = 0 -> Clear Current Column (default). | |
743 | * Ps = 3 -> Clear All. | |
744 | * Potentially: | |
745 | * Ps = 2 -> Clear Stops on Line. | |
746 | * http://vt100.net/annarbor/aaa-ug/section6.html | |
747 | */ | |
748 | public tabClear(params: number[]): void { | |
749 | let param = params[0]; | |
750 | if (param <= 0) { | |
751 | delete this._terminal.tabs[this._terminal.x]; | |
752 | } else if (param === 3) { | |
753 | this._terminal.tabs = {}; | |
754 | } | |
755 | } | |
756 | ||
757 | /** | |
758 | * CSI Pm h Set Mode (SM). | |
759 | * Ps = 2 -> Keyboard Action Mode (AM). | |
760 | * Ps = 4 -> Insert Mode (IRM). | |
761 | * Ps = 1 2 -> Send/receive (SRM). | |
762 | * Ps = 2 0 -> Automatic Newline (LNM). | |
763 | * CSI ? Pm h | |
764 | * DEC Private Mode Set (DECSET). | |
765 | * Ps = 1 -> Application Cursor Keys (DECCKM). | |
766 | * Ps = 2 -> Designate USASCII for character sets G0-G3 | |
767 | * (DECANM), and set VT100 mode. | |
768 | * Ps = 3 -> 132 Column Mode (DECCOLM). | |
769 | * Ps = 4 -> Smooth (Slow) Scroll (DECSCLM). | |
770 | * Ps = 5 -> Reverse Video (DECSCNM). | |
771 | * Ps = 6 -> Origin Mode (DECOM). | |
772 | * Ps = 7 -> Wraparound Mode (DECAWM). | |
773 | * Ps = 8 -> Auto-repeat Keys (DECARM). | |
774 | * Ps = 9 -> Send Mouse X & Y on button press. See the sec- | |
775 | * tion Mouse Tracking. | |
776 | * Ps = 1 0 -> Show toolbar (rxvt). | |
777 | * Ps = 1 2 -> Start Blinking Cursor (att610). | |
778 | * Ps = 1 8 -> Print form feed (DECPFF). | |
779 | * Ps = 1 9 -> Set print extent to full screen (DECPEX). | |
780 | * Ps = 2 5 -> Show Cursor (DECTCEM). | |
781 | * Ps = 3 0 -> Show scrollbar (rxvt). | |
782 | * Ps = 3 5 -> Enable font-shifting functions (rxvt). | |
783 | * Ps = 3 8 -> Enter Tektronix Mode (DECTEK). | |
784 | * Ps = 4 0 -> Allow 80 -> 132 Mode. | |
785 | * Ps = 4 1 -> more(1) fix (see curses resource). | |
786 | * Ps = 4 2 -> Enable Nation Replacement Character sets (DECN- | |
787 | * RCM). | |
788 | * Ps = 4 4 -> Turn On Margin Bell. | |
789 | * Ps = 4 5 -> Reverse-wraparound Mode. | |
790 | * Ps = 4 6 -> Start Logging. This is normally disabled by a | |
791 | * compile-time option. | |
792 | * Ps = 4 7 -> Use Alternate Screen Buffer. (This may be dis- | |
793 | * abled by the titeInhibit resource). | |
794 | * Ps = 6 6 -> Application keypad (DECNKM). | |
795 | * Ps = 6 7 -> Backarrow key sends backspace (DECBKM). | |
796 | * Ps = 1 0 0 0 -> Send Mouse X & Y on button press and | |
797 | * release. See the section Mouse Tracking. | |
798 | * Ps = 1 0 0 1 -> Use Hilite Mouse Tracking. | |
799 | * Ps = 1 0 0 2 -> Use Cell Motion Mouse Tracking. | |
800 | * Ps = 1 0 0 3 -> Use All Motion Mouse Tracking. | |
801 | * Ps = 1 0 0 4 -> Send FocusIn/FocusOut events. | |
802 | * Ps = 1 0 0 5 -> Enable Extended Mouse Mode. | |
803 | * Ps = 1 0 1 0 -> Scroll to bottom on tty output (rxvt). | |
804 | * Ps = 1 0 1 1 -> Scroll to bottom on key press (rxvt). | |
805 | * Ps = 1 0 3 4 -> Interpret "meta" key, sets eighth bit. | |
806 | * (enables the eightBitInput resource). | |
807 | * Ps = 1 0 3 5 -> Enable special modifiers for Alt and Num- | |
808 | * Lock keys. (This enables the numLock resource). | |
809 | * Ps = 1 0 3 6 -> Send ESC when Meta modifies a key. (This | |
810 | * enables the metaSendsEscape resource). | |
811 | * Ps = 1 0 3 7 -> Send DEL from the editing-keypad Delete | |
812 | * key. | |
813 | * Ps = 1 0 3 9 -> Send ESC when Alt modifies a key. (This | |
814 | * enables the altSendsEscape resource). | |
815 | * Ps = 1 0 4 0 -> Keep selection even if not highlighted. | |
816 | * (This enables the keepSelection resource). | |
817 | * Ps = 1 0 4 1 -> Use the CLIPBOARD selection. (This enables | |
818 | * the selectToClipboard resource). | |
819 | * Ps = 1 0 4 2 -> Enable Urgency window manager hint when | |
820 | * Control-G is received. (This enables the bellIsUrgent | |
821 | * resource). | |
822 | * Ps = 1 0 4 3 -> Enable raising of the window when Control-G | |
823 | * is received. (enables the popOnBell resource). | |
824 | * Ps = 1 0 4 7 -> Use Alternate Screen Buffer. (This may be | |
825 | * disabled by the titeInhibit resource). | |
826 | * Ps = 1 0 4 8 -> Save cursor as in DECSC. (This may be dis- | |
827 | * abled by the titeInhibit resource). | |
828 | * Ps = 1 0 4 9 -> Save cursor as in DECSC and use Alternate | |
829 | * Screen Buffer, clearing it first. (This may be disabled by | |
830 | * the titeInhibit resource). This combines the effects of the 1 | |
831 | * 0 4 7 and 1 0 4 8 modes. Use this with terminfo-based | |
832 | * applications rather than the 4 7 mode. | |
833 | * Ps = 1 0 5 0 -> Set terminfo/termcap function-key mode. | |
834 | * Ps = 1 0 5 1 -> Set Sun function-key mode. | |
835 | * Ps = 1 0 5 2 -> Set HP function-key mode. | |
836 | * Ps = 1 0 5 3 -> Set SCO function-key mode. | |
837 | * Ps = 1 0 6 0 -> Set legacy keyboard emulation (X11R6). | |
838 | * Ps = 1 0 6 1 -> Set VT220 keyboard emulation. | |
839 | * Ps = 2 0 0 4 -> Set bracketed paste mode. | |
840 | * Modes: | |
841 | * http: *vt100.net/docs/vt220-rm/chapter4.html | |
842 | */ | |
843 | public setMode(params: number[]): void { | |
844 | if (params.length > 1) { | |
845 | for (let i = 0; i < params.length; i++) { | |
846 | this.setMode([params[i]]); | |
847 | } | |
848 | ||
849 | return; | |
850 | } | |
851 | ||
852 | if (!this._terminal.prefix) { | |
853 | switch (params[0]) { | |
854 | case 4: | |
855 | this._terminal.insertMode = true; | |
856 | break; | |
857 | case 20: | |
858 | // this._terminal.convertEol = true; | |
859 | break; | |
860 | } | |
861 | } else if (this._terminal.prefix === '?') { | |
862 | switch (params[0]) { | |
863 | case 1: | |
864 | this._terminal.applicationCursor = true; | |
865 | break; | |
866 | case 2: | |
867 | this._terminal.setgCharset(0, DEFAULT_CHARSET); | |
868 | this._terminal.setgCharset(1, DEFAULT_CHARSET); | |
869 | this._terminal.setgCharset(2, DEFAULT_CHARSET); | |
870 | this._terminal.setgCharset(3, DEFAULT_CHARSET); | |
871 | // set VT100 mode here | |
872 | break; | |
873 | case 3: // 132 col mode | |
874 | this._terminal.savedCols = this._terminal.cols; | |
875 | this._terminal.resize(132, this._terminal.rows); | |
876 | break; | |
877 | case 6: | |
878 | this._terminal.originMode = true; | |
879 | break; | |
880 | case 7: | |
881 | this._terminal.wraparoundMode = true; | |
882 | break; | |
883 | case 12: | |
884 | // this.cursorBlink = true; | |
885 | break; | |
886 | case 66: | |
887 | this._terminal.log('Serial port requested application keypad.'); | |
888 | this._terminal.applicationKeypad = true; | |
889 | this._terminal.viewport.syncScrollArea(); | |
890 | break; | |
891 | case 9: // X10 Mouse | |
892 | // no release, no motion, no wheel, no modifiers. | |
893 | case 1000: // vt200 mouse | |
894 | // no motion. | |
895 | // no modifiers, except control on the wheel. | |
896 | case 1002: // button event mouse | |
897 | case 1003: // any event mouse | |
898 | // any event - sends motion events, | |
899 | // even if there is no button held down. | |
900 | ||
901 | // TODO: Why are params[0] compares nested within a switch for params[0]? | |
902 | ||
903 | this._terminal.x10Mouse = params[0] === 9; | |
904 | this._terminal.vt200Mouse = params[0] === 1000; | |
905 | this._terminal.normalMouse = params[0] > 1000; | |
906 | this._terminal.mouseEvents = true; | |
907 | this._terminal.element.classList.add('enable-mouse-events'); | |
908 | this._terminal.selectionManager.disable(); | |
909 | this._terminal.log('Binding to mouse events.'); | |
910 | break; | |
911 | case 1004: // send focusin/focusout events | |
912 | // focusin: ^[[I | |
913 | // focusout: ^[[O | |
914 | this._terminal.sendFocus = true; | |
915 | break; | |
916 | case 1005: // utf8 ext mode mouse | |
917 | this._terminal.utfMouse = true; | |
918 | // for wide terminals | |
919 | // simply encodes large values as utf8 characters | |
920 | break; | |
921 | case 1006: // sgr ext mode mouse | |
922 | this._terminal.sgrMouse = true; | |
923 | // for wide terminals | |
924 | // does not add 32 to fields | |
925 | // press: ^[[<b;x;yM | |
926 | // release: ^[[<b;x;ym | |
927 | break; | |
928 | case 1015: // urxvt ext mode mouse | |
929 | this._terminal.urxvtMouse = true; | |
930 | // for wide terminals | |
931 | // numbers for fields | |
932 | // press: ^[[b;x;yM | |
933 | // motion: ^[[b;x;yT | |
934 | break; | |
935 | case 25: // show cursor | |
936 | this._terminal.cursorHidden = false; | |
937 | break; | |
938 | case 1049: // alt screen buffer cursor | |
939 | // this._terminal.saveCursor(); | |
940 | ; // FALL-THROUGH | |
941 | case 47: // alt screen buffer | |
942 | case 1047: // alt screen buffer | |
943 | if (!this._terminal.normal) { | |
944 | let normal = { | |
945 | lines: this._terminal.lines, | |
946 | ybase: this._terminal.ybase, | |
947 | ydisp: this._terminal.ydisp, | |
948 | x: this._terminal.x, | |
949 | y: this._terminal.y, | |
950 | scrollTop: this._terminal.scrollTop, | |
951 | scrollBottom: this._terminal.scrollBottom, | |
952 | tabs: this._terminal.tabs | |
953 | // XXX save charset(s) here? | |
954 | // charset: this._terminal.charset, | |
955 | // glevel: this._terminal.glevel, | |
956 | // charsets: this._terminal.charsets | |
957 | }; | |
958 | this._terminal.reset(); | |
959 | this._terminal.viewport.syncScrollArea(); | |
960 | this._terminal.normal = normal; | |
961 | this._terminal.showCursor(); | |
962 | } | |
963 | break; | |
964 | } | |
965 | } | |
966 | } | |
967 | ||
968 | /** | |
969 | * CSI Pm l Reset Mode (RM). | |
970 | * Ps = 2 -> Keyboard Action Mode (AM). | |
971 | * Ps = 4 -> Replace Mode (IRM). | |
972 | * Ps = 1 2 -> Send/receive (SRM). | |
973 | * Ps = 2 0 -> Normal Linefeed (LNM). | |
974 | * CSI ? Pm l | |
975 | * DEC Private Mode Reset (DECRST). | |
976 | * Ps = 1 -> Normal Cursor Keys (DECCKM). | |
977 | * Ps = 2 -> Designate VT52 mode (DECANM). | |
978 | * Ps = 3 -> 80 Column Mode (DECCOLM). | |
979 | * Ps = 4 -> Jump (Fast) Scroll (DECSCLM). | |
980 | * Ps = 5 -> Normal Video (DECSCNM). | |
981 | * Ps = 6 -> Normal Cursor Mode (DECOM). | |
982 | * Ps = 7 -> No Wraparound Mode (DECAWM). | |
983 | * Ps = 8 -> No Auto-repeat Keys (DECARM). | |
984 | * Ps = 9 -> Don't send Mouse X & Y on button press. | |
985 | * Ps = 1 0 -> Hide toolbar (rxvt). | |
986 | * Ps = 1 2 -> Stop Blinking Cursor (att610). | |
987 | * Ps = 1 8 -> Don't print form feed (DECPFF). | |
988 | * Ps = 1 9 -> Limit print to scrolling region (DECPEX). | |
989 | * Ps = 2 5 -> Hide Cursor (DECTCEM). | |
990 | * Ps = 3 0 -> Don't show scrollbar (rxvt). | |
991 | * Ps = 3 5 -> Disable font-shifting functions (rxvt). | |
992 | * Ps = 4 0 -> Disallow 80 -> 132 Mode. | |
993 | * Ps = 4 1 -> No more(1) fix (see curses resource). | |
994 | * Ps = 4 2 -> Disable Nation Replacement Character sets (DEC- | |
995 | * NRCM). | |
996 | * Ps = 4 4 -> Turn Off Margin Bell. | |
997 | * Ps = 4 5 -> No Reverse-wraparound Mode. | |
998 | * Ps = 4 6 -> Stop Logging. (This is normally disabled by a | |
999 | * compile-time option). | |
1000 | * Ps = 4 7 -> Use Normal Screen Buffer. | |
1001 | * Ps = 6 6 -> Numeric keypad (DECNKM). | |
1002 | * Ps = 6 7 -> Backarrow key sends delete (DECBKM). | |
1003 | * Ps = 1 0 0 0 -> Don't send Mouse X & Y on button press and | |
1004 | * release. See the section Mouse Tracking. | |
1005 | * Ps = 1 0 0 1 -> Don't use Hilite Mouse Tracking. | |
1006 | * Ps = 1 0 0 2 -> Don't use Cell Motion Mouse Tracking. | |
1007 | * Ps = 1 0 0 3 -> Don't use All Motion Mouse Tracking. | |
1008 | * Ps = 1 0 0 4 -> Don't send FocusIn/FocusOut events. | |
1009 | * Ps = 1 0 0 5 -> Disable Extended Mouse Mode. | |
1010 | * Ps = 1 0 1 0 -> Don't scroll to bottom on tty output | |
1011 | * (rxvt). | |
1012 | * Ps = 1 0 1 1 -> Don't scroll to bottom on key press (rxvt). | |
1013 | * Ps = 1 0 3 4 -> Don't interpret "meta" key. (This disables | |
1014 | * the eightBitInput resource). | |
1015 | * Ps = 1 0 3 5 -> Disable special modifiers for Alt and Num- | |
1016 | * Lock keys. (This disables the numLock resource). | |
1017 | * Ps = 1 0 3 6 -> Don't send ESC when Meta modifies a key. | |
1018 | * (This disables the metaSendsEscape resource). | |
1019 | * Ps = 1 0 3 7 -> Send VT220 Remove from the editing-keypad | |
1020 | * Delete key. | |
1021 | * Ps = 1 0 3 9 -> Don't send ESC when Alt modifies a key. | |
1022 | * (This disables the altSendsEscape resource). | |
1023 | * Ps = 1 0 4 0 -> Do not keep selection when not highlighted. | |
1024 | * (This disables the keepSelection resource). | |
1025 | * Ps = 1 0 4 1 -> Use the PRIMARY selection. (This disables | |
1026 | * the selectToClipboard resource). | |
1027 | * Ps = 1 0 4 2 -> Disable Urgency window manager hint when | |
1028 | * Control-G is received. (This disables the bellIsUrgent | |
1029 | * resource). | |
1030 | * Ps = 1 0 4 3 -> Disable raising of the window when Control- | |
1031 | * G is received. (This disables the popOnBell resource). | |
1032 | * Ps = 1 0 4 7 -> Use Normal Screen Buffer, clearing screen | |
1033 | * first if in the Alternate Screen. (This may be disabled by | |
1034 | * the titeInhibit resource). | |
1035 | * Ps = 1 0 4 8 -> Restore cursor as in DECRC. (This may be | |
1036 | * disabled by the titeInhibit resource). | |
1037 | * Ps = 1 0 4 9 -> Use Normal Screen Buffer and restore cursor | |
1038 | * as in DECRC. (This may be disabled by the titeInhibit | |
1039 | * resource). This combines the effects of the 1 0 4 7 and 1 0 | |
1040 | * 4 8 modes. Use this with terminfo-based applications rather | |
1041 | * than the 4 7 mode. | |
1042 | * Ps = 1 0 5 0 -> Reset terminfo/termcap function-key mode. | |
1043 | * Ps = 1 0 5 1 -> Reset Sun function-key mode. | |
1044 | * Ps = 1 0 5 2 -> Reset HP function-key mode. | |
1045 | * Ps = 1 0 5 3 -> Reset SCO function-key mode. | |
1046 | * Ps = 1 0 6 0 -> Reset legacy keyboard emulation (X11R6). | |
1047 | * Ps = 1 0 6 1 -> Reset keyboard emulation to Sun/PC style. | |
1048 | * Ps = 2 0 0 4 -> Reset bracketed paste mode. | |
1049 | */ | |
1050 | public resetMode(params: number[]): void { | |
1051 | if (params.length > 1) { | |
1052 | for (let i = 0; i < params.length; i++) { | |
1053 | this.resetMode([params[i]]); | |
1054 | } | |
1055 | ||
1056 | return; | |
1057 | } | |
1058 | ||
1059 | if (!this._terminal.prefix) { | |
1060 | switch (params[0]) { | |
1061 | case 4: | |
1062 | this._terminal.insertMode = false; | |
1063 | break; | |
1064 | case 20: | |
1065 | // this._terminal.convertEol = false; | |
1066 | break; | |
1067 | } | |
1068 | } else if (this._terminal.prefix === '?') { | |
1069 | switch (params[0]) { | |
1070 | case 1: | |
1071 | this._terminal.applicationCursor = false; | |
1072 | break; | |
1073 | case 3: | |
1074 | if (this._terminal.cols === 132 && this._terminal.savedCols) { | |
1075 | this._terminal.resize(this._terminal.savedCols, this._terminal.rows); | |
1076 | } | |
1077 | delete this._terminal.savedCols; | |
1078 | break; | |
1079 | case 6: | |
1080 | this._terminal.originMode = false; | |
1081 | break; | |
1082 | case 7: | |
1083 | this._terminal.wraparoundMode = false; | |
1084 | break; | |
1085 | case 12: | |
1086 | // this.cursorBlink = false; | |
1087 | break; | |
1088 | case 66: | |
1089 | this._terminal.log('Switching back to normal keypad.'); | |
1090 | this._terminal.applicationKeypad = false; | |
1091 | this._terminal.viewport.syncScrollArea(); | |
1092 | break; | |
1093 | case 9: // X10 Mouse | |
1094 | case 1000: // vt200 mouse | |
1095 | case 1002: // button event mouse | |
1096 | case 1003: // any event mouse | |
1097 | this._terminal.x10Mouse = false; | |
1098 | this._terminal.vt200Mouse = false; | |
1099 | this._terminal.normalMouse = false; | |
1100 | this._terminal.mouseEvents = false; | |
1101 | this._terminal.element.classList.remove('enable-mouse-events'); | |
1102 | this._terminal.selectionManager.enable(); | |
1103 | break; | |
1104 | case 1004: // send focusin/focusout events | |
1105 | this._terminal.sendFocus = false; | |
1106 | break; | |
1107 | case 1005: // utf8 ext mode mouse | |
1108 | this._terminal.utfMouse = false; | |
1109 | break; | |
1110 | case 1006: // sgr ext mode mouse | |
1111 | this._terminal.sgrMouse = false; | |
1112 | break; | |
1113 | case 1015: // urxvt ext mode mouse | |
1114 | this._terminal.urxvtMouse = false; | |
1115 | break; | |
1116 | case 25: // hide cursor | |
1117 | this._terminal.cursorHidden = true; | |
1118 | break; | |
1119 | case 1049: // alt screen buffer cursor | |
1120 | ; // FALL-THROUGH | |
1121 | case 47: // normal screen buffer | |
1122 | case 1047: // normal screen buffer - clearing it first | |
1123 | if (this._terminal.normal) { | |
1124 | this._terminal.lines = this._terminal.normal.lines; | |
1125 | this._terminal.ybase = this._terminal.normal.ybase; | |
1126 | this._terminal.ydisp = this._terminal.normal.ydisp; | |
1127 | this._terminal.x = this._terminal.normal.x; | |
1128 | this._terminal.y = this._terminal.normal.y; | |
1129 | this._terminal.scrollTop = this._terminal.normal.scrollTop; | |
1130 | this._terminal.scrollBottom = this._terminal.normal.scrollBottom; | |
1131 | this._terminal.tabs = this._terminal.normal.tabs; | |
1132 | this._terminal.normal = null; | |
1133 | // Ensure the selection manager has the correct buffer | |
1134 | this._terminal.selectionManager.setBuffer(this._terminal.lines); | |
1135 | // if (params === 1049) { | |
1136 | // this.x = this.savedX; | |
1137 | // this.y = this.savedY; | |
1138 | // } | |
1139 | this._terminal.refresh(0, this._terminal.rows - 1); | |
1140 | this._terminal.viewport.syncScrollArea(); | |
1141 | this._terminal.showCursor(); | |
1142 | } | |
1143 | break; | |
1144 | } | |
1145 | } | |
1146 | } | |
1147 | ||
1148 | /** | |
1149 | * CSI Pm m Character Attributes (SGR). | |
1150 | * Ps = 0 -> Normal (default). | |
1151 | * Ps = 1 -> Bold. | |
1152 | * Ps = 4 -> Underlined. | |
1153 | * Ps = 5 -> Blink (appears as Bold). | |
1154 | * Ps = 7 -> Inverse. | |
1155 | * Ps = 8 -> Invisible, i.e., hidden (VT300). | |
1156 | * Ps = 2 2 -> Normal (neither bold nor faint). | |
1157 | * Ps = 2 4 -> Not underlined. | |
1158 | * Ps = 2 5 -> Steady (not blinking). | |
1159 | * Ps = 2 7 -> Positive (not inverse). | |
1160 | * Ps = 2 8 -> Visible, i.e., not hidden (VT300). | |
1161 | * Ps = 3 0 -> Set foreground color to Black. | |
1162 | * Ps = 3 1 -> Set foreground color to Red. | |
1163 | * Ps = 3 2 -> Set foreground color to Green. | |
1164 | * Ps = 3 3 -> Set foreground color to Yellow. | |
1165 | * Ps = 3 4 -> Set foreground color to Blue. | |
1166 | * Ps = 3 5 -> Set foreground color to Magenta. | |
1167 | * Ps = 3 6 -> Set foreground color to Cyan. | |
1168 | * Ps = 3 7 -> Set foreground color to White. | |
1169 | * Ps = 3 9 -> Set foreground color to default (original). | |
1170 | * Ps = 4 0 -> Set background color to Black. | |
1171 | * Ps = 4 1 -> Set background color to Red. | |
1172 | * Ps = 4 2 -> Set background color to Green. | |
1173 | * Ps = 4 3 -> Set background color to Yellow. | |
1174 | * Ps = 4 4 -> Set background color to Blue. | |
1175 | * Ps = 4 5 -> Set background color to Magenta. | |
1176 | * Ps = 4 6 -> Set background color to Cyan. | |
1177 | * Ps = 4 7 -> Set background color to White. | |
1178 | * Ps = 4 9 -> Set background color to default (original). | |
1179 | * | |
1180 | * If 16-color support is compiled, the following apply. Assume | |
1181 | * that xterm's resources are set so that the ISO color codes are | |
1182 | * the first 8 of a set of 16. Then the aixterm colors are the | |
1183 | * bright versions of the ISO colors: | |
1184 | * Ps = 9 0 -> Set foreground color to Black. | |
1185 | * Ps = 9 1 -> Set foreground color to Red. | |
1186 | * Ps = 9 2 -> Set foreground color to Green. | |
1187 | * Ps = 9 3 -> Set foreground color to Yellow. | |
1188 | * Ps = 9 4 -> Set foreground color to Blue. | |
1189 | * Ps = 9 5 -> Set foreground color to Magenta. | |
1190 | * Ps = 9 6 -> Set foreground color to Cyan. | |
1191 | * Ps = 9 7 -> Set foreground color to White. | |
1192 | * Ps = 1 0 0 -> Set background color to Black. | |
1193 | * Ps = 1 0 1 -> Set background color to Red. | |
1194 | * Ps = 1 0 2 -> Set background color to Green. | |
1195 | * Ps = 1 0 3 -> Set background color to Yellow. | |
1196 | * Ps = 1 0 4 -> Set background color to Blue. | |
1197 | * Ps = 1 0 5 -> Set background color to Magenta. | |
1198 | * Ps = 1 0 6 -> Set background color to Cyan. | |
1199 | * Ps = 1 0 7 -> Set background color to White. | |
1200 | * | |
1201 | * If xterm is compiled with the 16-color support disabled, it | |
1202 | * supports the following, from rxvt: | |
1203 | * Ps = 1 0 0 -> Set foreground and background color to | |
1204 | * default. | |
1205 | * | |
1206 | * If 88- or 256-color support is compiled, the following apply. | |
1207 | * Ps = 3 8 ; 5 ; Ps -> Set foreground color to the second | |
1208 | * Ps. | |
1209 | * Ps = 4 8 ; 5 ; Ps -> Set background color to the second | |
1210 | * Ps. | |
1211 | */ | |
1212 | public charAttributes(params: number[]): void { | |
1213 | // Optimize a single SGR0. | |
1214 | if (params.length === 1 && params[0] === 0) { | |
1215 | this._terminal.curAttr = this._terminal.defAttr; | |
1216 | return; | |
1217 | } | |
1218 | ||
1219 | let l = params.length | |
1220 | , i = 0 | |
1221 | , flags = this._terminal.curAttr >> 18 | |
1222 | , fg = (this._terminal.curAttr >> 9) & 0x1ff | |
1223 | , bg = this._terminal.curAttr & 0x1ff | |
1224 | , p; | |
1225 | ||
1226 | for (; i < l; i++) { | |
1227 | p = params[i]; | |
1228 | if (p >= 30 && p <= 37) { | |
1229 | // fg color 8 | |
1230 | fg = p - 30; | |
1231 | } else if (p >= 40 && p <= 47) { | |
1232 | // bg color 8 | |
1233 | bg = p - 40; | |
1234 | } else if (p >= 90 && p <= 97) { | |
1235 | // fg color 16 | |
1236 | p += 8; | |
1237 | fg = p - 90; | |
1238 | } else if (p >= 100 && p <= 107) { | |
1239 | // bg color 16 | |
1240 | p += 8; | |
1241 | bg = p - 100; | |
1242 | } else if (p === 0) { | |
1243 | // default | |
1244 | flags = this._terminal.defAttr >> 18; | |
1245 | fg = (this._terminal.defAttr >> 9) & 0x1ff; | |
1246 | bg = this._terminal.defAttr & 0x1ff; | |
1247 | // flags = 0; | |
1248 | // fg = 0x1ff; | |
1249 | // bg = 0x1ff; | |
1250 | } else if (p === 1) { | |
1251 | // bold text | |
1252 | flags |= 1; | |
1253 | } else if (p === 4) { | |
1254 | // underlined text | |
1255 | flags |= 2; | |
1256 | } else if (p === 5) { | |
1257 | // blink | |
1258 | flags |= 4; | |
1259 | } else if (p === 7) { | |
1260 | // inverse and positive | |
1261 | // test with: echo -e '\e[31m\e[42mhello\e[7mworld\e[27mhi\e[m' | |
1262 | flags |= 8; | |
1263 | } else if (p === 8) { | |
1264 | // invisible | |
1265 | flags |= 16; | |
1266 | } else if (p === 22) { | |
1267 | // not bold | |
1268 | flags &= ~1; | |
1269 | } else if (p === 24) { | |
1270 | // not underlined | |
1271 | flags &= ~2; | |
1272 | } else if (p === 25) { | |
1273 | // not blink | |
1274 | flags &= ~4; | |
1275 | } else if (p === 27) { | |
1276 | // not inverse | |
1277 | flags &= ~8; | |
1278 | } else if (p === 28) { | |
1279 | // not invisible | |
1280 | flags &= ~16; | |
1281 | } else if (p === 39) { | |
1282 | // reset fg | |
1283 | fg = (this._terminal.defAttr >> 9) & 0x1ff; | |
1284 | } else if (p === 49) { | |
1285 | // reset bg | |
1286 | bg = this._terminal.defAttr & 0x1ff; | |
1287 | } else if (p === 38) { | |
1288 | // fg color 256 | |
1289 | if (params[i + 1] === 2) { | |
1290 | i += 2; | |
1291 | fg = this._terminal.matchColor( | |
1292 | params[i] & 0xff, | |
1293 | params[i + 1] & 0xff, | |
1294 | params[i + 2] & 0xff); | |
1295 | if (fg === -1) fg = 0x1ff; | |
1296 | i += 2; | |
1297 | } else if (params[i + 1] === 5) { | |
1298 | i += 2; | |
1299 | p = params[i] & 0xff; | |
1300 | fg = p; | |
1301 | } | |
1302 | } else if (p === 48) { | |
1303 | // bg color 256 | |
1304 | if (params[i + 1] === 2) { | |
1305 | i += 2; | |
1306 | bg = this._terminal.matchColor( | |
1307 | params[i] & 0xff, | |
1308 | params[i + 1] & 0xff, | |
1309 | params[i + 2] & 0xff); | |
1310 | if (bg === -1) bg = 0x1ff; | |
1311 | i += 2; | |
1312 | } else if (params[i + 1] === 5) { | |
1313 | i += 2; | |
1314 | p = params[i] & 0xff; | |
1315 | bg = p; | |
1316 | } | |
1317 | } else if (p === 100) { | |
1318 | // reset fg/bg | |
1319 | fg = (this._terminal.defAttr >> 9) & 0x1ff; | |
1320 | bg = this._terminal.defAttr & 0x1ff; | |
1321 | } else { | |
1322 | this._terminal.error('Unknown SGR attribute: %d.', p); | |
1323 | } | |
1324 | } | |
1325 | ||
1326 | this._terminal.curAttr = (flags << 18) | (fg << 9) | bg; | |
1327 | } | |
1328 | ||
1329 | /** | |
1330 | * CSI Ps n Device Status Report (DSR). | |
1331 | * Ps = 5 -> Status Report. Result (``OK'') is | |
1332 | * CSI 0 n | |
1333 | * Ps = 6 -> Report Cursor Position (CPR) [row;column]. | |
1334 | * Result is | |
1335 | * CSI r ; c R | |
1336 | * CSI ? Ps n | |
1337 | * Device Status Report (DSR, DEC-specific). | |
1338 | * Ps = 6 -> Report Cursor Position (CPR) [row;column] as CSI | |
1339 | * ? r ; c R (assumes page is zero). | |
1340 | * Ps = 1 5 -> Report Printer status as CSI ? 1 0 n (ready). | |
1341 | * or CSI ? 1 1 n (not ready). | |
1342 | * Ps = 2 5 -> Report UDK status as CSI ? 2 0 n (unlocked) | |
1343 | * or CSI ? 2 1 n (locked). | |
1344 | * Ps = 2 6 -> Report Keyboard status as | |
1345 | * CSI ? 2 7 ; 1 ; 0 ; 0 n (North American). | |
1346 | * The last two parameters apply to VT400 & up, and denote key- | |
1347 | * board ready and LK01 respectively. | |
1348 | * Ps = 5 3 -> Report Locator status as | |
1349 | * CSI ? 5 3 n Locator available, if compiled-in, or | |
1350 | * CSI ? 5 0 n No Locator, if not. | |
1351 | */ | |
1352 | public deviceStatus(params: number[]): void { | |
1353 | if (!this._terminal.prefix) { | |
1354 | switch (params[0]) { | |
1355 | case 5: | |
1356 | // status report | |
1357 | this._terminal.send(C0.ESC + '[0n'); | |
1358 | break; | |
1359 | case 6: | |
1360 | // cursor position | |
1361 | this._terminal.send(C0.ESC + '[' | |
1362 | + (this._terminal.y + 1) | |
1363 | + ';' | |
1364 | + (this._terminal.x + 1) | |
1365 | + 'R'); | |
1366 | break; | |
1367 | } | |
1368 | } else if (this._terminal.prefix === '?') { | |
1369 | // modern xterm doesnt seem to | |
1370 | // respond to any of these except ?6, 6, and 5 | |
1371 | switch (params[0]) { | |
1372 | case 6: | |
1373 | // cursor position | |
1374 | this._terminal.send(C0.ESC + '[?' | |
1375 | + (this._terminal.y + 1) | |
1376 | + ';' | |
1377 | + (this._terminal.x + 1) | |
1378 | + 'R'); | |
1379 | break; | |
1380 | case 15: | |
1381 | // no printer | |
1382 | // this.send(C0.ESC + '[?11n'); | |
1383 | break; | |
1384 | case 25: | |
1385 | // dont support user defined keys | |
1386 | // this.send(C0.ESC + '[?21n'); | |
1387 | break; | |
1388 | case 26: | |
1389 | // north american keyboard | |
1390 | // this.send(C0.ESC + '[?27;1;0;0n'); | |
1391 | break; | |
1392 | case 53: | |
1393 | // no dec locator/mouse | |
1394 | // this.send(C0.ESC + '[?50n'); | |
1395 | break; | |
1396 | } | |
1397 | } | |
1398 | } | |
1399 | ||
1400 | /** | |
1401 | * CSI ! p Soft terminal reset (DECSTR). | |
1402 | * http://vt100.net/docs/vt220-rm/table4-10.html | |
1403 | */ | |
1404 | public softReset(params: number[]): void { | |
1405 | this._terminal.cursorHidden = false; | |
1406 | this._terminal.insertMode = false; | |
1407 | this._terminal.originMode = false; | |
1408 | this._terminal.wraparoundMode = true; // defaults: xterm - true, vt100 - false | |
1409 | this._terminal.applicationKeypad = false; // ? | |
1410 | this._terminal.viewport.syncScrollArea(); | |
1411 | this._terminal.applicationCursor = false; | |
1412 | this._terminal.scrollTop = 0; | |
1413 | this._terminal.scrollBottom = this._terminal.rows - 1; | |
1414 | this._terminal.curAttr = this._terminal.defAttr; | |
1415 | this._terminal.x = this._terminal.y = 0; // ? | |
1416 | this._terminal.charset = null; | |
1417 | this._terminal.glevel = 0; // ?? | |
1418 | this._terminal.charsets = [null]; // ?? | |
1419 | } | |
1420 | ||
1421 | /** | |
1422 | * CSI Ps SP q Set cursor style (DECSCUSR, VT520). | |
1423 | * Ps = 0 -> blinking block. | |
1424 | * Ps = 1 -> blinking block (default). | |
1425 | * Ps = 2 -> steady block. | |
1426 | * Ps = 3 -> blinking underline. | |
1427 | * Ps = 4 -> steady underline. | |
1428 | * Ps = 5 -> blinking bar (xterm). | |
1429 | * Ps = 6 -> steady bar (xterm). | |
1430 | */ | |
1431 | public setCursorStyle(params?: number[]): void { | |
1432 | const param = params[0] < 1 ? 1 : params[0]; | |
1433 | switch (param) { | |
1434 | case 1: | |
1435 | case 2: | |
1436 | this._terminal.setOption('cursorStyle', 'block'); | |
1437 | break; | |
1438 | case 3: | |
1439 | case 4: | |
1440 | this._terminal.setOption('cursorStyle', 'underline'); | |
1441 | break; | |
1442 | case 5: | |
1443 | case 6: | |
1444 | this._terminal.setOption('cursorStyle', 'bar'); | |
1445 | break; | |
1446 | } | |
1447 | const isBlinking = param % 2 === 1; | |
1448 | this._terminal.setOption('cursorBlink', isBlinking); | |
1449 | } | |
1450 | ||
1451 | /** | |
1452 | * CSI Ps ; Ps r | |
1453 | * Set Scrolling Region [top;bottom] (default = full size of win- | |
1454 | * dow) (DECSTBM). | |
1455 | * CSI ? Pm r | |
1456 | */ | |
1457 | public setScrollRegion(params: number[]): void { | |
1458 | if (this._terminal.prefix) return; | |
1459 | this._terminal.scrollTop = (params[0] || 1) - 1; | |
1460 | this._terminal.scrollBottom = (params[1] && params[1] <= this._terminal.rows ? params[1] : this._terminal.rows) - 1; | |
1461 | this._terminal.x = 0; | |
1462 | this._terminal.y = 0; | |
1463 | } | |
1464 | ||
1465 | ||
1466 | /** | |
1467 | * CSI s | |
1468 | * Save cursor (ANSI.SYS). | |
1469 | */ | |
1470 | public saveCursor(params: number[]): void { | |
1471 | this._terminal.savedX = this._terminal.x; | |
1472 | this._terminal.savedY = this._terminal.y; | |
1473 | } | |
1474 | ||
1475 | ||
1476 | /** | |
1477 | * CSI u | |
1478 | * Restore cursor (ANSI.SYS). | |
1479 | */ | |
1480 | public restoreCursor(params: number[]): void { | |
1481 | this._terminal.x = this._terminal.savedX || 0; | |
1482 | this._terminal.y = this._terminal.savedY || 0; | |
1483 | } | |
1484 | } | |
1485 | ||
1486 | const wcwidth = (function(opts) { | |
1487 | // extracted from https://www.cl.cam.ac.uk/%7Emgk25/ucs/wcwidth.c | |
1488 | // combining characters | |
1489 | const COMBINING = [ | |
1490 | [0x0300, 0x036F], [0x0483, 0x0486], [0x0488, 0x0489], | |
1491 | [0x0591, 0x05BD], [0x05BF, 0x05BF], [0x05C1, 0x05C2], | |
1492 | [0x05C4, 0x05C5], [0x05C7, 0x05C7], [0x0600, 0x0603], | |
1493 | [0x0610, 0x0615], [0x064B, 0x065E], [0x0670, 0x0670], | |
1494 | [0x06D6, 0x06E4], [0x06E7, 0x06E8], [0x06EA, 0x06ED], | |
1495 | [0x070F, 0x070F], [0x0711, 0x0711], [0x0730, 0x074A], | |
1496 | [0x07A6, 0x07B0], [0x07EB, 0x07F3], [0x0901, 0x0902], | |
1497 | [0x093C, 0x093C], [0x0941, 0x0948], [0x094D, 0x094D], | |
1498 | [0x0951, 0x0954], [0x0962, 0x0963], [0x0981, 0x0981], | |
1499 | [0x09BC, 0x09BC], [0x09C1, 0x09C4], [0x09CD, 0x09CD], | |
1500 | [0x09E2, 0x09E3], [0x0A01, 0x0A02], [0x0A3C, 0x0A3C], | |
1501 | [0x0A41, 0x0A42], [0x0A47, 0x0A48], [0x0A4B, 0x0A4D], | |
1502 | [0x0A70, 0x0A71], [0x0A81, 0x0A82], [0x0ABC, 0x0ABC], | |
1503 | [0x0AC1, 0x0AC5], [0x0AC7, 0x0AC8], [0x0ACD, 0x0ACD], | |
1504 | [0x0AE2, 0x0AE3], [0x0B01, 0x0B01], [0x0B3C, 0x0B3C], | |
1505 | [0x0B3F, 0x0B3F], [0x0B41, 0x0B43], [0x0B4D, 0x0B4D], | |
1506 | [0x0B56, 0x0B56], [0x0B82, 0x0B82], [0x0BC0, 0x0BC0], | |
1507 | [0x0BCD, 0x0BCD], [0x0C3E, 0x0C40], [0x0C46, 0x0C48], | |
1508 | [0x0C4A, 0x0C4D], [0x0C55, 0x0C56], [0x0CBC, 0x0CBC], | |
1509 | [0x0CBF, 0x0CBF], [0x0CC6, 0x0CC6], [0x0CCC, 0x0CCD], | |
1510 | [0x0CE2, 0x0CE3], [0x0D41, 0x0D43], [0x0D4D, 0x0D4D], | |
1511 | [0x0DCA, 0x0DCA], [0x0DD2, 0x0DD4], [0x0DD6, 0x0DD6], | |
1512 | [0x0E31, 0x0E31], [0x0E34, 0x0E3A], [0x0E47, 0x0E4E], | |
1513 | [0x0EB1, 0x0EB1], [0x0EB4, 0x0EB9], [0x0EBB, 0x0EBC], | |
1514 | [0x0EC8, 0x0ECD], [0x0F18, 0x0F19], [0x0F35, 0x0F35], | |
1515 | [0x0F37, 0x0F37], [0x0F39, 0x0F39], [0x0F71, 0x0F7E], | |
1516 | [0x0F80, 0x0F84], [0x0F86, 0x0F87], [0x0F90, 0x0F97], | |
1517 | [0x0F99, 0x0FBC], [0x0FC6, 0x0FC6], [0x102D, 0x1030], | |
1518 | [0x1032, 0x1032], [0x1036, 0x1037], [0x1039, 0x1039], | |
1519 | [0x1058, 0x1059], [0x1160, 0x11FF], [0x135F, 0x135F], | |
1520 | [0x1712, 0x1714], [0x1732, 0x1734], [0x1752, 0x1753], | |
1521 | [0x1772, 0x1773], [0x17B4, 0x17B5], [0x17B7, 0x17BD], | |
1522 | [0x17C6, 0x17C6], [0x17C9, 0x17D3], [0x17DD, 0x17DD], | |
1523 | [0x180B, 0x180D], [0x18A9, 0x18A9], [0x1920, 0x1922], | |
1524 | [0x1927, 0x1928], [0x1932, 0x1932], [0x1939, 0x193B], | |
1525 | [0x1A17, 0x1A18], [0x1B00, 0x1B03], [0x1B34, 0x1B34], | |
1526 | [0x1B36, 0x1B3A], [0x1B3C, 0x1B3C], [0x1B42, 0x1B42], | |
1527 | [0x1B6B, 0x1B73], [0x1DC0, 0x1DCA], [0x1DFE, 0x1DFF], | |
1528 | [0x200B, 0x200F], [0x202A, 0x202E], [0x2060, 0x2063], | |
1529 | [0x206A, 0x206F], [0x20D0, 0x20EF], [0x302A, 0x302F], | |
1530 | [0x3099, 0x309A], [0xA806, 0xA806], [0xA80B, 0xA80B], | |
1531 | [0xA825, 0xA826], [0xFB1E, 0xFB1E], [0xFE00, 0xFE0F], | |
1532 | [0xFE20, 0xFE23], [0xFEFF, 0xFEFF], [0xFFF9, 0xFFFB], | |
1533 | [0x10A01, 0x10A03], [0x10A05, 0x10A06], [0x10A0C, 0x10A0F], | |
1534 | [0x10A38, 0x10A3A], [0x10A3F, 0x10A3F], [0x1D167, 0x1D169], | |
1535 | [0x1D173, 0x1D182], [0x1D185, 0x1D18B], [0x1D1AA, 0x1D1AD], | |
1536 | [0x1D242, 0x1D244], [0xE0001, 0xE0001], [0xE0020, 0xE007F], | |
1537 | [0xE0100, 0xE01EF] | |
1538 | ]; | |
1539 | // binary search | |
1540 | function bisearch(ucs) { | |
1541 | let min = 0; | |
1542 | let max = COMBINING.length - 1; | |
1543 | let mid; | |
1544 | if (ucs < COMBINING[0][0] || ucs > COMBINING[max][1]) | |
1545 | return false; | |
1546 | while (max >= min) { | |
1547 | mid = Math.floor((min + max) / 2); | |
1548 | if (ucs > COMBINING[mid][1]) | |
1549 | min = mid + 1; | |
1550 | else if (ucs < COMBINING[mid][0]) | |
1551 | max = mid - 1; | |
1552 | else | |
1553 | return true; | |
1554 | } | |
1555 | return false; | |
1556 | } | |
1557 | function wcwidth(ucs) { | |
1558 | // test for 8-bit control characters | |
1559 | if (ucs === 0) | |
1560 | return opts.nul; | |
1561 | if (ucs < 32 || (ucs >= 0x7f && ucs < 0xa0)) | |
1562 | return opts.control; | |
1563 | // binary search in table of non-spacing characters | |
1564 | if (bisearch(ucs)) | |
1565 | return 0; | |
1566 | // if we arrive here, ucs is not a combining or C0/C1 control character | |
1567 | if (isWide(ucs)) { | |
1568 | return 2; | |
1569 | } | |
1570 | return 1; | |
1571 | } | |
1572 | function isWide(ucs) { | |
1573 | return ( | |
1574 | ucs >= 0x1100 && ( | |
1575 | ucs <= 0x115f || // Hangul Jamo init. consonants | |
1576 | ucs === 0x2329 || | |
1577 | ucs === 0x232a || | |
1578 | (ucs >= 0x2e80 && ucs <= 0xa4cf && ucs !== 0x303f) || // CJK..Yi | |
1579 | (ucs >= 0xac00 && ucs <= 0xd7a3) || // Hangul Syllables | |
1580 | (ucs >= 0xf900 && ucs <= 0xfaff) || // CJK Compat Ideographs | |
1581 | (ucs >= 0xfe10 && ucs <= 0xfe19) || // Vertical forms | |
1582 | (ucs >= 0xfe30 && ucs <= 0xfe6f) || // CJK Compat Forms | |
1583 | (ucs >= 0xff00 && ucs <= 0xff60) || // Fullwidth Forms | |
1584 | (ucs >= 0xffe0 && ucs <= 0xffe6) || | |
1585 | (ucs >= 0x20000 && ucs <= 0x2fffd) || | |
1586 | (ucs >= 0x30000 && ucs <= 0x3fffd))); | |
1587 | } | |
1588 | return wcwidth; | |
1589 | })({nul: 0, control: 0}); // configurable options |