eiac/xterm.js
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Merge remote-tracking branch 'upstream/master' into 425_xon_xoff_on_280

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Daniel Imms
2017-01-10 20:24:07 -08:00
parent 0739a4be06 0b977fc35f
commit 0ec125557a
3 changed files with 223 additions and 142 deletions
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src/EscapeSequences.ts
+74
View File
@@ -0,0 +1,74 @@
/**
* C0 control codes
* See = https://en.wikipedia.org/wiki/C0_and_C1_control_codes
*/
export namespace C0 {
/** Null (Caret = ^@, C = \0) */
export const NUL = '\x00';
/** Start of Heading (Caret = ^A) */
export const SOH = '\x01';
/** Start of Text (Caret = ^B) */
export const STX = '\x02';
/** End of Text (Caret = ^C) */
export const ETX = '\x03';
/** End of Transmission (Caret = ^D) */
export const EOT = '\x04';
/** Enquiry (Caret = ^E) */
export const ENQ = '\x05';
/** Acknowledge (Caret = ^F) */
export const ACK = '\x06';
/** Bell (Caret = ^G, C = \a) */
export const BEL = '\x07';
/** Backspace (Caret = ^H, C = \b) */
export const BS = '\x08';
/** Character Tabulation, Horizontal Tabulation (Caret = ^I, C = \t) */
export const HT = '\x09';
/** Line Feed (Caret = ^J, C = \n) */
export const LF = '\x0a';
/** Line Tabulation, Vertical Tabulation (Caret = ^K, C = \v) */
export const VT = '\x0b';
/** Form Feed (Caret = ^L, C = \f) */
export const FF = '\x0c';
/** Carriage Return (Caret = ^M, C = \r) */
export const CR = '\x0d';
/** Shift Out (Caret = ^N) */
export const SO = '\x0e';
/** Shift In (Caret = ^O) */
export const SI = '\x0f';
/** Data Link Escape (Caret = ^P) */
export const DLE = '\x10';
/** Device Control One (XON) (Caret = ^Q) */
export const DC1 = '\x11';
/** Device Control Two (Caret = ^R) */
export const DC2 = '\x12';
/** Device Control Three (XOFF) (Caret = ^S) */
export const DC3 = '\x13';
/** Device Control Four (Caret = ^T) */
export const DC4 = '\x14';
/** Negative Acknowledge (Caret = ^U) */
export const NAK = '\x15';
/** Synchronous Idle (Caret = ^V) */
export const SYN = '\x16';
/** End of Transmission Block (Caret = ^W) */
export const ETB = '\x17';
/** Cancel (Caret = ^X) */
export const CAN = '\x18';
/** End of Medium (Caret = ^Y) */
export const EM = '\x19';
/** Substitute (Caret = ^Z) */
export const SUB = '\x1a';
/** Escape (Caret = ^[, C = \e) */
export const ESC = '\x1b';
/** File Separator (Caret = ^\) */
export const FS = '\x1c';
/** Group Separator (Caret = ^]) */
export const GS = '\x1d';
/** Record Separator (Caret = ^^) */
export const RS = '\x1e';
/** Unit Separator (Caret = ^_) */
export const US = '\x1f';
/** Space */
export const SP = '\x20';
/** Delete (Caret = ^?) */
export const DEL = '\x7f';
};
src/utils/CharMeasure.ts
+13 -8
View File
@@ -28,24 +28,29 @@ export class CharMeasure extends EventEmitter {
}
public measure(): void {
const oldWidth = this._width;
const oldHeight = this._height;
if (!this._measureElement) {
this._measureElement = document.createElement('span');
this._measureElement.style.position = 'absolute';
this._measureElement.style.top = '0';
this._measureElement.style.left = '-9999em';
this._measureElement.textContent = 'W';
this._parentElement.appendChild(this._measureElement);
// Perform _doMeasure async if the element was just attached as sometimes
// getBoundingClientRect does not return accurate values without this.
setTimeout(() => this._doMeasure(), 0);
} else {
this._doMeasure();
}
}
this._parentElement.appendChild(this._measureElement);
private _doMeasure(): void {
const oldWidth = this._width;
const oldHeight = this._height;
const geometry = this._measureElement.getBoundingClientRect();
this._width = geometry.width;
this._height = geometry.height;
this._parentElement.removeChild(this._measureElement);
if (this._width !== oldWidth || this._height !== oldHeight) {
if (this._width !== geometry.width || this._height !== geometry.height) {
this._width = geometry.width;
this._height = geometry.height;
this.emit('charsizechanged');
}
}
src/xterm.js
+136 -134
View File
@@ -15,6 +15,7 @@ import { EventEmitter } from './EventEmitter.js';
import { Viewport } from './Viewport.js';
import { rightClickHandler, pasteHandler, copyHandler } from './handlers/Clipboard.js';
import { CircularList } from './utils/CircularList.js';
import { C0 } from './EscapeSequences';
import { CharMeasure } from './utils/CharMeasure.js';
import * as Browser from './utils/Browser';
import * as Keyboard from './utils/Keyboard';
@@ -416,7 +417,7 @@ Terminal.prototype.setOption = function(key, value) {
Terminal.bindFocus = function (term) {
on(term.textarea, 'focus', function (ev) {
if (term.sendFocus) {
term.send('\x1b[I');
term.send(C0.ESC + '[I');
}
term.element.classList.add('focus');
term.showCursor();
@@ -441,7 +442,7 @@ Terminal.bindBlur = function (term) {
on(term.textarea, 'blur', function (ev) {
term.queueRefresh(term.y, term.y);
if (term.sendFocus) {
term.send('\x1b[O');
term.send(C0.ESC + '[O');
}
term.element.classList.remove('focus');
Terminal.focus = null;
@@ -786,7 +787,7 @@ Terminal.prototype.bindMouse = function() {
button &= 3;
pos.x -= 32;
pos.y -= 32;
var data = '\x1b[24';
var data = C0.ESC + '[24';
if (button === 0) data += '1';
else if (button === 1) data += '3';
else if (button === 2) data += '5';
@@ -806,7 +807,7 @@ Terminal.prototype.bindMouse = function() {
else if (button === 1) button = 4;
else if (button === 2) button = 6;
else if (button === 3) button = 3;
self.send('\x1b['
self.send(C0.ESC + '['
+ button
+ ';'
+ (button === 3 ? 4 : 0)
@@ -825,14 +826,14 @@ Terminal.prototype.bindMouse = function() {
pos.y -= 32;
pos.x++;
pos.y++;
self.send('\x1b[' + button + ';' + pos.x + ';' + pos.y + 'M');
self.send(C0.ESC + '[' + button + ';' + pos.x + ';' + pos.y + 'M');
return;
}
if (self.sgrMouse) {
pos.x -= 32;
pos.y -= 32;
self.send('\x1b[<'
self.send(C0.ESC + '[<'
+ (((button & 3) === 3 ? button & ~3 : button) - 32)
+ ';'
+ pos.x
@@ -848,7 +849,7 @@ Terminal.prototype.bindMouse = function() {
encode(data, pos.x);
encode(data, pos.y);
self.send('\x1b[M' + String.fromCharCode.apply(String, data));
self.send(C0.ESC + '[M' + String.fromCharCode.apply(String, data));
}
function getButton(ev) {
@@ -1415,7 +1416,7 @@ Terminal.prototype.write = function(data) {
if (!this.xoffSentToCatchUp && this.writeBuffer.length >= WRITE_BUFFER_PAUSE_THRESHOLD) {
// XOFF - stop pty pipe
// XON will be triggered by emulator before processing data chunk
this.send('\x13');
this.send(C0.DC3);
this.xoffSentToCatchUp = true;
}
@@ -1439,7 +1440,7 @@ Terminal.prototype.innerWrite = function() {
// If XOFF was sent in order to catch up with the pty process, resume it if
// the writeBuffer is empty to allow more data to come in.
if (this.xoffSentToCatchUp && writeBatch.length === 0 && this.writeBuffer.length === 0) {
this.send('\x11');
this.send(C0.DC1);
this.xoffSentToCatchUp = false;
}
@@ -1470,20 +1471,21 @@ Terminal.prototype.innerWrite = function() {
code = ((code - 0xD800) * 0x400) + (low - 0xDC00) + 0x10000;
ch += data.charAt(i+1);
}
// surrogate low - already handled above
if (0xDC00 <= code && code <= 0xDFFF)
continue;
switch (this.state) {
case normal:
switch (ch) {
case '\x07':
case C0.BEL:
this.bell();
break;
// '\n', '\v', '\f'
case '\n':
case '\x0b':
case '\x0c':
case C0.LF:
case C0.VT:
case C0.FF:
if (this.convertEol) {
this.x = 0;
}
@@ -1500,29 +1502,29 @@ Terminal.prototype.innerWrite = function() {
break;
// '\b'
case '\x08':
case C0.BS:
if (this.x > 0) {
this.x--;
}
break;
// '\t'
case '\t':
case C0.HT:
this.x = this.nextStop();
break;
// shift out
case '\x0e':
case C0.SO:
this.setgLevel(1);
break;
// shift in
case '\x0f':
case C0.SI:
this.setgLevel(0);
break;
// '\e'
case '\x1b':
case C0.ESC:
this.state = escaped;
break;
@@ -1851,8 +1853,8 @@ Terminal.prototype.innerWrite = function() {
// OSC Ps ; Pt ST
// OSC Ps ; Pt BEL
// Set Text Parameters.
if (ch === '\x1b' || ch === '\x07') {
if (ch === '\x1b') i++;
if (ch === C0.ESC || ch === C0.BEL) {
if (ch === C0.ESC) i++;
this.params.push(this.currentParam);
@@ -2181,39 +2183,39 @@ Terminal.prototype.innerWrite = function() {
this.tabClear(this.params);
break;
// CSI Pm i Media Copy (MC).
// CSI ? Pm i
// case 'i':
// this.mediaCopy(this.params);
// break;
// CSI Pm i Media Copy (MC).
// CSI ? Pm i
// case 'i':
// this.mediaCopy(this.params);
// break;
// CSI Pm m Character Attributes (SGR).
// CSI > Ps; Ps m
// case 'm': // duplicate
// if (this.prefix === '>') {
// this.setResources(this.params);
// } else {
// this.charAttributes(this.params);
// }
// break;
// CSI Pm m Character Attributes (SGR).
// CSI > Ps; Ps m
// case 'm': // duplicate
// if (this.prefix === '>') {
// this.setResources(this.params);
// } else {
// this.charAttributes(this.params);
// }
// break;
// CSI Ps n Device Status Report (DSR).
// CSI > Ps n
// case 'n': // duplicate
// if (this.prefix === '>') {
// this.disableModifiers(this.params);
// } else {
// this.deviceStatus(this.params);
// }
// break;
// CSI Ps n Device Status Report (DSR).
// CSI > Ps n
// case 'n': // duplicate
// if (this.prefix === '>') {
// this.disableModifiers(this.params);
// } else {
// this.deviceStatus(this.params);
// }
// break;
// CSI > Ps p Set pointer mode.
// CSI ! p Soft terminal reset (DECSTR).
// CSI Ps$ p
// Request ANSI mode (DECRQM).
// CSI ? Ps$ p
// Request DEC private mode (DECRQM).
// CSI Ps ; Ps " p
// CSI > Ps p Set pointer mode.
// CSI ! p Soft terminal reset (DECSTR).
// CSI Ps$ p
// Request ANSI mode (DECRQM).
// CSI ? Ps$ p
// Request DEC private mode (DECRQM).
// CSI Ps ; Ps " p
case 'p':
switch (this.prefix) {
// case '>':
@@ -2384,8 +2386,8 @@ Terminal.prototype.innerWrite = function() {
break;
case dcs:
if (ch === '\x1b' || ch === '\x07') {
if (ch === '\x1b') i++;
if (ch === C0.ESC || ch === C0.BEL) {
if (ch === C0.ESC) i++;
switch (this.prefix) {
// User-Defined Keys (DECUDK).
@@ -2429,7 +2431,7 @@ Terminal.prototype.innerWrite = function() {
break;
}
this.send('\x1bP' + +valid + '$r' + pt + '\x1b\\');
this.send(C0.ESC + 'P' + +valid + '$r' + pt + C0.ESC + '\\');
break;
// Set Termcap/Terminfo Data (xterm, experimental).
@@ -2444,7 +2446,7 @@ Terminal.prototype.innerWrite = function() {
var pt = this.currentParam
, valid = false;
this.send('\x1bP' + +valid + '+r' + pt + '\x1b\\');
this.send(C0.ESC + 'P' + +valid + '+r' + pt + C0.ESC + '\\');
break;
default:
@@ -2470,8 +2472,8 @@ Terminal.prototype.innerWrite = function() {
case ignore:
// For PM and APC.
if (ch === '\x1b' || ch === '\x07') {
if (ch === '\x1b') i++;
if (ch === C0.ESC || ch === C0.BEL) {
if (ch === C0.ESC) i++;
this.state = normal;
}
break;
@@ -2533,9 +2535,9 @@ Terminal.prototype.keyDown = function(ev) {
var self = this;
var result = this.evaluateKeyEscapeSequence(ev);
if (result.key === '\x13') { // XOFF
if (result.key === C0.DC3) { // XOFF
this.writeStopped = true;
} else if (result.key === '\x11') { // XON
} else if (result.key === C0.DC1) { // XON
this.writeStopped = false;
}
@@ -2587,90 +2589,90 @@ Terminal.prototype.evaluateKeyEscapeSequence = function(ev) {
case 8:
// backspace
if (ev.shiftKey) {
result.key = '\x08'; // ^H
result.key = C0.BS; // ^H
break;
}
result.key = '\x7f'; // ^?
result.key = C0.DEL; // ^?
break;
case 9:
// tab
if (ev.shiftKey) {
result.key = '\x1b[Z';
result.key = C0.ESC + '[Z';
break;
}
result.key = '\t';
result.key = C0.HT;
result.cancel = true;
break;
case 13:
// return/enter
result.key = '\r';
result.key = C0.CR;
result.cancel = true;
break;
case 27:
// escape
result.key = '\x1b';
result.key = C0.ESC;
result.cancel = true;
break;
case 37:
// left-arrow
if (modifiers) {
result.key = '\x1b[1;' + (modifiers + 1) + 'D';
result.key = C0.ESC + '[1;' + (modifiers + 1) + 'D';
// HACK: Make Alt + left-arrow behave like Ctrl + left-arrow: move one word backwards
// http://unix.stackexchange.com/a/108106
// macOS uses different escape sequences than linux
if (result.key == '\x1b[1;3D') {
result.key = (this.browser.isMac) ? '\x1bb' : '\x1b[1;5D';
if (result.key == C0.ESC + '[1;3D') {
result.key = (this.browser.isMac) ? C0.ESC + 'b' : C0.ESC + '[1;5D';
}
} else if (this.applicationCursor) {
result.key = '\x1bOD';
result.key = C0.ESC + 'OD';
} else {
result.key = '\x1b[D';
result.key = C0.ESC + '[D';
}
break;
case 39:
// right-arrow
if (modifiers) {
result.key = '\x1b[1;' + (modifiers + 1) + 'C';
result.key = C0.ESC + '[1;' + (modifiers + 1) + 'C';
// HACK: Make Alt + right-arrow behave like Ctrl + right-arrow: move one word forward
// http://unix.stackexchange.com/a/108106
// macOS uses different escape sequences than linux
if (result.key == '\x1b[1;3C') {
result.key = (this.browser.isMac) ? '\x1bf' : '\x1b[1;5C';
if (result.key == C0.ESC + '[1;3C') {
result.key = (this.browser.isMac) ? C0.ESC + 'f' : C0.ESC + '[1;5C';
}
} else if (this.applicationCursor) {
result.key = '\x1bOC';
result.key = C0.ESC + 'OC';
} else {
result.key = '\x1b[C';
result.key = C0.ESC + '[C';
}
break;
case 38:
// up-arrow
if (modifiers) {
result.key = '\x1b[1;' + (modifiers + 1) + 'A';
result.key = C0.ESC + '[1;' + (modifiers + 1) + 'A';
// HACK: Make Alt + up-arrow behave like Ctrl + up-arrow
// http://unix.stackexchange.com/a/108106
if (result.key == '\x1b[1;3A') {
result.key = '\x1b[1;5A';
if (result.key == C0.ESC + '[1;3A') {
result.key = C0.ESC + '[1;5A';
}
} else if (this.applicationCursor) {
result.key = '\x1bOA';
result.key = C0.ESC + 'OA';
} else {
result.key = '\x1b[A';
result.key = C0.ESC + '[A';
}
break;
case 40:
// down-arrow
if (modifiers) {
result.key = '\x1b[1;' + (modifiers + 1) + 'B';
result.key = C0.ESC + '[1;' + (modifiers + 1) + 'B';
// HACK: Make Alt + down-arrow behave like Ctrl + down-arrow
// http://unix.stackexchange.com/a/108106
if (result.key == '\x1b[1;3B') {
result.key = '\x1b[1;5B';
if (result.key == C0.ESC + '[1;3B') {
result.key = C0.ESC + '[1;5B';
}
} else if (this.applicationCursor) {
result.key = '\x1bOB';
result.key = C0.ESC + 'OB';
} else {
result.key = '\x1b[B';
result.key = C0.ESC + '[B';
}
break;
case 45:
@@ -2678,41 +2680,41 @@ Terminal.prototype.evaluateKeyEscapeSequence = function(ev) {
if (!ev.shiftKey && !ev.ctrlKey) {
// <Ctrl> or <Shift> + <Insert> are used to
// copy-paste on some systems.
result.key = '\x1b[2~';
result.key = C0.ESC + '[2~';
}
break;
case 46:
// delete
if (modifiers) {
result.key = '\x1b[3;' + (modifiers + 1) + '~';
result.key = C0.ESC + '[3;' + (modifiers + 1) + '~';
} else {
result.key = '\x1b[3~';
result.key = C0.ESC + '[3~';
}
break;
case 36:
// home
if (modifiers)
result.key = '\x1b[1;' + (modifiers + 1) + 'H';
result.key = C0.ESC + '[1;' + (modifiers + 1) + 'H';
else if (this.applicationCursor)
result.key = '\x1bOH';
result.key = C0.ESC + 'OH';
else
result.key = '\x1b[H';
result.key = C0.ESC + '[H';
break;
case 35:
// end
if (modifiers)
result.key = '\x1b[1;' + (modifiers + 1) + 'F';
result.key = C0.ESC + '[1;' + (modifiers + 1) + 'F';
else if (this.applicationCursor)
result.key = '\x1bOF';
result.key = C0.ESC + 'OF';
else
result.key = '\x1b[F';
result.key = C0.ESC + '[F';
break;
case 33:
// page up
if (ev.shiftKey) {
result.scrollDisp = -(this.rows - 1);
} else {
result.key = '\x1b[5~';
result.key = C0.ESC + '[5~';
}
break;
case 34:
@@ -2720,92 +2722,92 @@ Terminal.prototype.evaluateKeyEscapeSequence = function(ev) {
if (ev.shiftKey) {
result.scrollDisp = this.rows - 1;
} else {
result.key = '\x1b[6~';
result.key = C0.ESC + '[6~';
}
break;
case 112:
// F1-F12
if (modifiers) {
result.key = '\x1b[1;' + (modifiers + 1) + 'P';
result.key = C0.ESC + '[1;' + (modifiers + 1) + 'P';
} else {
result.key = '\x1bOP';
result.key = C0.ESC + 'OP';
}
break;
case 113:
if (modifiers) {
result.key = '\x1b[1;' + (modifiers + 1) + 'Q';
result.key = C0.ESC + '[1;' + (modifiers + 1) + 'Q';
} else {
result.key = '\x1bOQ';
result.key = C0.ESC + 'OQ';
}
break;
case 114:
if (modifiers) {
result.key = '\x1b[1;' + (modifiers + 1) + 'R';
result.key = C0.ESC + '[1;' + (modifiers + 1) + 'R';
} else {
result.key = '\x1bOR';
result.key = C0.ESC + 'OR';
}
break;
case 115:
if (modifiers) {
result.key = '\x1b[1;' + (modifiers + 1) + 'S';
result.key = C0.ESC + '[1;' + (modifiers + 1) + 'S';
} else {
result.key = '\x1bOS';
result.key = C0.ESC + 'OS';
}
break;
case 116:
if (modifiers) {
result.key = '\x1b[15;' + (modifiers + 1) + '~';
result.key = C0.ESC + '[15;' + (modifiers + 1) + '~';
} else {
result.key = '\x1b[15~';
result.key = C0.ESC + '[15~';
}
break;
case 117:
if (modifiers) {
result.key = '\x1b[17;' + (modifiers + 1) + '~';
result.key = C0.ESC + '[17;' + (modifiers + 1) + '~';
} else {
result.key = '\x1b[17~';
result.key = C0.ESC + '[17~';
}
break;
case 118:
if (modifiers) {
result.key = '\x1b[18;' + (modifiers + 1) + '~';
result.key = C0.ESC + '[18;' + (modifiers + 1) + '~';
} else {
result.key = '\x1b[18~';
result.key = C0.ESC + '[18~';
}
break;
case 119:
if (modifiers) {
result.key = '\x1b[19;' + (modifiers + 1) + '~';
result.key = C0.ESC + '[19;' + (modifiers + 1) + '~';
} else {
result.key = '\x1b[19~';
result.key = C0.ESC + '[19~';
}
break;
case 120:
if (modifiers) {
result.key = '\x1b[20;' + (modifiers + 1) + '~';
result.key = C0.ESC + '[20;' + (modifiers + 1) + '~';
} else {
result.key = '\x1b[20~';
result.key = C0.ESC + '[20~';
}
break;
case 121:
if (modifiers) {
result.key = '\x1b[21;' + (modifiers + 1) + '~';
result.key = C0.ESC + '[21;' + (modifiers + 1) + '~';
} else {
result.key = '\x1b[21~';
result.key = C0.ESC + '[21~';
}
break;
case 122:
if (modifiers) {
result.key = '\x1b[23;' + (modifiers + 1) + '~';
result.key = C0.ESC + '[23;' + (modifiers + 1) + '~';
} else {
result.key = '\x1b[23~';
result.key = C0.ESC + '[23~';
}
break;
case 123:
if (modifiers) {
result.key = '\x1b[24;' + (modifiers + 1) + '~';
result.key = C0.ESC + '[24;' + (modifiers + 1) + '~';
} else {
result.key = '\x1b[24~';
result.key = C0.ESC + '[24~';
}
break;
default:
@@ -2835,11 +2837,11 @@ Terminal.prototype.evaluateKeyEscapeSequence = function(ev) {
} else if (!this.browser.isMac && ev.altKey && !ev.ctrlKey && !ev.metaKey) {
// On Mac this is a third level shift. Use <Esc> instead.
if (ev.keyCode >= 65 && ev.keyCode <= 90) {
result.key = '\x1b' + String.fromCharCode(ev.keyCode + 32);
result.key = C0.ESC + String.fromCharCode(ev.keyCode + 32);
} else if (ev.keyCode === 192) {
result.key = '\x1b`';
result.key = C0.ESC + '`';
} else if (ev.keyCode >= 48 && ev.keyCode <= 57) {
result.key = '\x1b' + (ev.keyCode - 48);
result.key = C0.ESC + (ev.keyCode - 48);
}
}
break;
@@ -3707,11 +3709,11 @@ Terminal.prototype.deviceStatus = function(params) {
switch (params[0]) {
case 5:
// status report
this.send('\x1b[0n');
this.send(C0.ESC + '[0n');
break;
case 6:
// cursor position
this.send('\x1b['
this.send(C0.ESC + '['
+ (this.y + 1)
+ ';'
+ (this.x + 1)
@@ -3724,7 +3726,7 @@ Terminal.prototype.deviceStatus = function(params) {
switch (params[0]) {
case 6:
// cursor position
this.send('\x1b[?'
this.send(C0.ESC + '[?'
+ (this.y + 1)
+ ';'
+ (this.x + 1)
@@ -3732,19 +3734,19 @@ Terminal.prototype.deviceStatus = function(params) {
break;
case 15:
// no printer
// this.send('\x1b[?11n');
// this.send(C0.ESC + '[?11n');
break;
case 25:
// dont support user defined keys
// this.send('\x1b[?21n');
// this.send(C0.ESC + '[?21n');
break;
case 26:
// north american keyboard
// this.send('\x1b[?27;1;0;0n');
// this.send(C0.ESC + '[?27;1;0;0n');
break;
case 53:
// no dec locator/mouse
// this.send('\x1b[?50n');
// this.send(C0.ESC + '[?50n');
break;
}
}
@@ -3995,24 +3997,24 @@ Terminal.prototype.sendDeviceAttributes = function(params) {
if (this.is('xterm')
|| this.is('rxvt-unicode')
|| this.is('screen')) {
this.send('\x1b[?1;2c');
this.send(C0.ESC + '[?1;2c');
} else if (this.is('linux')) {
this.send('\x1b[?6c');
this.send(C0.ESC + '[?6c');
}
} else if (this.prefix === '>') {
// xterm and urxvt
// seem to spit this
// out around ~370 times (?).
if (this.is('xterm')) {
this.send('\x1b[>0;276;0c');
this.send(C0.ESC + '[>0;276;0c');
} else if (this.is('rxvt-unicode')) {
this.send('\x1b[>85;95;0c');
this.send(C0.ESC + '[>85;95;0c');
} else if (this.is('linux')) {
// not supported by linux console.
// linux console echoes parameters.
this.send(params[0] + 'c');
} else if (this.is('screen')) {
this.send('\x1b[>83;40003;0c');
this.send(C0.ESC + '[>83;40003;0c');
}
}
};