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xterm.js/src/InputHandler.ts
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/**
* Copyright (c) 2014 The xterm.js authors. All rights reserved.
* Copyright (c) 2012-2013, Christopher Jeffrey (MIT License)
* @license MIT
*/
import { CharData, IInputHandler } from './Types';
import { C0, C1 } from './EscapeSequences';
import { CHARSETS, DEFAULT_CHARSET } from './Charsets';
import { CHAR_DATA_CHAR_INDEX, CHAR_DATA_WIDTH_INDEX } from './Buffer';
import { FLAGS } from './renderer/Types';
import { wcwidth } from './CharWidth';
import { EscapeSequenceParser } from './EscapeSequenceParser';
/**
* Map collect to glevel. Used in `selectCharset`.
*/
const GLEVEL = {'(': 0, ')': 1, '*': 2, '+': 3, '-': 1, '.': 2};
/**
* The terminal's standard implementation of IInputHandler, this handles all
* input from the Parser.
*
* Refer to http://invisible-island.net/xterm/ctlseqs/ctlseqs.html to understand
* each function's header comment.
*/
export class InputHandler implements IInputHandler {
private _surrogateHigh: string;
constructor(
private _terminal: any,
private _parser: EscapeSequenceParser = new EscapeSequenceParser)
{
this._surrogateHigh = '';
/**
* custom fallback handlers
*/
this._parser.setCsiHandlerFallback((...params: any[]) => {
this._terminal.error('Unknown CSI code: ', params);
});
this._parser.setEscHandlerFallback((...params: any[]) => {
this._terminal.error('Unknown ESC code: ', params);
});
this._parser.setExecuteHandlerFallback((...params: any[]) => {
this._terminal.error('Unknown EXECUTE code: ', params);
});
this._parser.setOscHandlerFallback((...params: any[]) => {
this._terminal.error('Unknown OSC code: ', params);
});
/**
* print handler
*/
this._parser.setPrintHandler((data, start, end): void => this.print(data, start, end));
/**
* CSI handler
*/
this._parser.setCsiHandler('@', (params, collect) => this.insertChars(params));
this._parser.setCsiHandler('A', (params, collect) => this.cursorUp(params));
this._parser.setCsiHandler('B', (params, collect) => this.cursorDown(params));
this._parser.setCsiHandler('C', (params, collect) => this.cursorForward(params));
this._parser.setCsiHandler('D', (params, collect) => this.cursorBackward(params));
this._parser.setCsiHandler('E', (params, collect) => this.cursorNextLine(params));
this._parser.setCsiHandler('F', (params, collect) => this.cursorPrecedingLine(params));
this._parser.setCsiHandler('G', (params, collect) => this.cursorCharAbsolute(params));
this._parser.setCsiHandler('H', (params, collect) => this.cursorPosition(params));
this._parser.setCsiHandler('I', (params, collect) => this.cursorForwardTab(params));
this._parser.setCsiHandler('J', (params, collect) => this.eraseInDisplay(params));
this._parser.setCsiHandler('K', (params, collect) => this.eraseInLine(params));
this._parser.setCsiHandler('L', (params, collect) => this.insertLines(params));
this._parser.setCsiHandler('M', (params, collect) => this.deleteLines(params));
this._parser.setCsiHandler('P', (params, collect) => this.deleteChars(params));
this._parser.setCsiHandler('S', (params, collect) => this.scrollUp(params));
this._parser.setCsiHandler('T', (params, collect) => this.scrollDown(params, collect));
this._parser.setCsiHandler('X', (params, collect) => this.eraseChars(params));
this._parser.setCsiHandler('Z', (params, collect) => this.cursorBackwardTab(params));
this._parser.setCsiHandler('`', (params, collect) => this.charPosAbsolute(params));
this._parser.setCsiHandler('a', (params, collect) => this.HPositionRelative(params));
this._parser.setCsiHandler('b', (params, collect) => this.repeatPrecedingCharacter(params));
this._parser.setCsiHandler('c', (params, collect) => this.sendDeviceAttributes(params, collect));
this._parser.setCsiHandler('d', (params, collect) => this.linePosAbsolute(params));
this._parser.setCsiHandler('e', (params, collect) => this.VPositionRelative(params));
this._parser.setCsiHandler('f', (params, collect) => this.HVPosition(params));
this._parser.setCsiHandler('g', (params, collect) => this.tabClear(params));
this._parser.setCsiHandler('h', (params, collect) => this.setMode(params, collect));
this._parser.setCsiHandler('l', (params, collect) => this.resetMode(params, collect));
this._parser.setCsiHandler('m', (params, collect) => this.charAttributes(params));
this._parser.setCsiHandler('n', (params, collect) => this.deviceStatus(params, collect));
this._parser.setCsiHandler('p', (params, collect) => this.softReset(params, collect));
this._parser.setCsiHandler('q', (params, collect) => this.setCursorStyle(params, collect));
this._parser.setCsiHandler('r', (params, collect) => this.setScrollRegion(params, collect));
this._parser.setCsiHandler('s', (params, collect) => this.saveCursor(params));
this._parser.setCsiHandler('u', (params, collect) => this.restoreCursor(params));
/**
* execute handler
*/
this._parser.setExecuteHandler(C0.BEL, () => this.bell());
this._parser.setExecuteHandler(C0.LF, () => this.lineFeed());
this._parser.setExecuteHandler(C0.VT, () => this.lineFeed());
this._parser.setExecuteHandler(C0.FF, () => this.lineFeed());
this._parser.setExecuteHandler(C0.CR, () => this.carriageReturn());
this._parser.setExecuteHandler(C0.BS, () => this.backspace());
this._parser.setExecuteHandler(C0.HT, () => this.tab());
this._parser.setExecuteHandler(C0.SO, () => this.shiftOut());
this._parser.setExecuteHandler(C0.SI, () => this.shiftIn());
// FIXME: What do to with missing? Old code just added those to print, but that's wrong
// behavior for most control codes.
// some C1 control codes - should those be enabled by default?
this._parser.setExecuteHandler(C1.IND, () => this.index());
this._parser.setExecuteHandler(C1.NEL, () => this.nextLine());
this._parser.setExecuteHandler(C1.HTS, () => this.tabSet());
/**
* OSC handler
*/
// 0 - icon name + title
this._parser.setOscHandler(0, (data) => this.setTitle(data));
// 1 - icon name
// 2 - title
this._parser.setOscHandler(2, (data) => this.setTitle(data));
// 3 - set property X in the form "prop=value"
// 4 - Change Color Number
// 5 - Change Special Color Number
// 6 - Enable/disable Special Color Number c
// 7 - current directory? (not in xterm spec, see https://gitlab.com/gnachman/iterm2/issues/3939)
// 10 - Change VT100 text foreground color to Pt.
// 11 - Change VT100 text background color to Pt.
// 12 - Change text cursor color to Pt.
// 13 - Change mouse foreground color to Pt.
// 14 - Change mouse background color to Pt.
// 15 - Change Tektronix foreground color to Pt.
// 16 - Change Tektronix background color to Pt.
// 17 - Change highlight background color to Pt.
// 18 - Change Tektronix cursor color to Pt.
// 19 - Change highlight foreground color to Pt.
// 46 - Change Log File to Pt.
// 50 - Set Font to Pt.
// 51 - reserved for Emacs shell.
// 52 - Manipulate Selection Data.
// 104 ; c - Reset Color Number c.
// 105 ; c - Reset Special Color Number c.
// 106 ; c; f - Enable/disable Special Color Number c.
// 110 - Reset VT100 text foreground color.
// 111 - Reset VT100 text background color.
// 112 - Reset text cursor color.
// 113 - Reset mouse foreground color.
// 114 - Reset mouse background color.
// 115 - Reset Tektronix foreground color.
// 116 - Reset Tektronix background color.
// 117 - Reset highlight color.
// 118 - Reset Tektronix cursor color.
// 119 - Reset highlight foreground color.
/**
* ESC handlers
*/
this._parser.setEscHandler('7', () => this.saveCursor([]));
this._parser.setEscHandler('8', () => this.restoreCursor([]));
this._parser.setEscHandler('D', () => this.index());
this._parser.setEscHandler('E', () => this.nextLine());
this._parser.setEscHandler('H', () => this.tabSet());
this._parser.setEscHandler('M', () => this.reverseIndex());
this._parser.setEscHandler('=', () => this.keypadApplicationMode());
this._parser.setEscHandler('>', () => this.keypadNumericMode());
this._parser.setEscHandler('c', () => this.reset());
this._parser.setEscHandler('n', () => this.setgLevel(2));
this._parser.setEscHandler('o', () => this.setgLevel(3));
this._parser.setEscHandler('|', () => this.setgLevel(3));
this._parser.setEscHandler('}', () => this.setgLevel(2));
this._parser.setEscHandler('~', () => this.setgLevel(1));
this._parser.setEscHandler('%@', () => this.selectDefaultCharset());
this._parser.setEscHandler('%G', () => this.selectDefaultCharset());
for (let flag in CHARSETS) {
this._parser.setEscHandler('(' + flag, () => this.selectCharset('(' + flag));
this._parser.setEscHandler(')' + flag, () => this.selectCharset(')' + flag));
this._parser.setEscHandler('*' + flag, () => this.selectCharset('*' + flag));
this._parser.setEscHandler('+' + flag, () => this.selectCharset('+' + flag));
this._parser.setEscHandler('-' + flag, () => this.selectCharset('-' + flag));
this._parser.setEscHandler('.' + flag, () => this.selectCharset('.' + flag));
this._parser.setEscHandler('/' + flag, () => this.selectCharset('/' + flag)); // FIXME: supported?
}
/**
* error handler
*/
this._parser.setErrorHandler((state) => {
this._terminal.error('Parsing error: ', state);
return state;
});
}
public parse(data: string): void {
let buffer = this._terminal.buffer;
const cursorStartX = buffer.x;
const cursorStartY = buffer.y;
if (this._terminal.debug) {
this._terminal.log('data: ' + data);
}
// apply leftover surrogate high from last write
if (this._surrogateHigh) {
data = this._surrogateHigh + data;
this._surrogateHigh = '';
}
this._parser.parse(data);
buffer = this._terminal.buffer;
if (buffer.x !== cursorStartX || buffer.y !== cursorStartY) {
this._terminal.emit('cursormove');
}
}
public print(data: string, start: number, end: number): void {
let ch;
let code;
let low;
let chWidth;
const buffer = this._terminal.buffer;
for (let i = start; i < end; ++i) {
ch = data.charAt(i);
code = data.charCodeAt(i);
if (0xD800 <= code && code <= 0xDBFF) {
// we got a surrogate high
// get surrogate low (next 2 bytes)
low = data.charCodeAt(i + 1);
if (isNaN(low)) {
// end of data stream, save surrogate high
this._surrogateHigh = ch;
continue;
}
code = ((code - 0xD800) * 0x400) + (low - 0xDC00) + 0x10000;
ch += data.charAt(i + 1);
}
// surrogate low - already handled above
if (0xDC00 <= code && code <= 0xDFFF) {
continue;
}
// calculate print space
// expensive call, therefore we save width in line buffer
chWidth = wcwidth(code);
if (this._terminal.charset && this._terminal.charset[ch]) {
ch = this._terminal.charset[ch];
}
if (this._terminal.options.screenReaderMode) {
this._terminal.emit('a11y.char', ch);
}
let row = buffer.y + buffer.ybase;
// insert combining char in last cell
// FIXME: needs handling after cursor jumps
if (!chWidth && buffer.x) {
// dont overflow left
if (buffer.lines.get(row)[buffer.x - 1]) {
if (!buffer.lines.get(row)[buffer.x - 1][CHAR_DATA_WIDTH_INDEX]) {
// found empty cell after fullwidth, need to go 2 cells back
if (buffer.lines.get(row)[buffer.x - 2]) {
buffer.lines.get(row)[buffer.x - 2][CHAR_DATA_CHAR_INDEX] += ch;
buffer.lines.get(row)[buffer.x - 2][3] = ch.charCodeAt(0);
}
} else {
buffer.lines.get(row)[buffer.x - 1][CHAR_DATA_CHAR_INDEX] += ch;
buffer.lines.get(row)[buffer.x - 1][3] = ch.charCodeAt(0);
}
this._terminal.updateRange(buffer.y);
}
continue;
}
// goto next line if ch would overflow
// TODO: needs a global min terminal width of 2
if (buffer.x + chWidth - 1 >= this._terminal.cols) {
// autowrap - DECAWM
if (this._terminal.wraparoundMode) {
buffer.x = 0;
buffer.y++;
if (buffer.y > buffer.scrollBottom) {
buffer.y--;
this._terminal.scroll(true);
} else {
// The line already exists (eg. the initial viewport), mark it as a
// wrapped line
(<any>buffer.lines.get(buffer.y)).isWrapped = true;
}
} else {
if (chWidth === 2) { // FIXME: check for xterm behavior
continue;
}
}
}
row = buffer.y + buffer.ybase;
// insert mode: move characters to right
if (this._terminal.insertMode) {
// do this twice for a fullwidth char
for (let moves = 0; moves < chWidth; ++moves) {
// remove last cell, if it's width is 0
// we have to adjust the second last cell as well
const removed = buffer.lines.get(buffer.y + buffer.ybase).pop();
if (removed[CHAR_DATA_WIDTH_INDEX] === 0
&& buffer.lines.get(row)[this._terminal.cols - 2]
&& buffer.lines.get(row)[this._terminal.cols - 2][CHAR_DATA_WIDTH_INDEX] === 2) {
buffer.lines.get(row)[this._terminal.cols - 2] = [this._terminal.curAttr, ' ', 1, ' '.charCodeAt(0)];
}
// insert empty cell at cursor
buffer.lines.get(row).splice(buffer.x, 0, [this._terminal.curAttr, ' ', 1, ' '.charCodeAt(0)]);
}
}
buffer.lines.get(row)[buffer.x] = [this._terminal.curAttr, ch, chWidth, ch.charCodeAt(0)];
buffer.x++;
this._terminal.updateRange(buffer.y);
// fullwidth char - set next cell width to zero and advance cursor
if (chWidth === 2) {
buffer.lines.get(row)[buffer.x] = [this._terminal.curAttr, '', 0, undefined];
buffer.x++;
}
}
}
/**
* BEL
* Bell (Ctrl-G).
*/
public bell(): void {
this._terminal.bell();
}
/**
* LF
* Line Feed or New Line (NL). (LF is Ctrl-J).
*/
public lineFeed(): void {
// make buffer local for faster access
const buffer = this._terminal.buffer;
if (this._terminal.convertEol) {
buffer.x = 0;
}
buffer.y++;
if (buffer.y > buffer.scrollBottom) {
buffer.y--;
this._terminal.scroll();
}
// If the end of the line is hit, prevent this action from wrapping around to the next line.
if (buffer.x >= this._terminal.cols) {
buffer.x--;
}
/**
* This event is emitted whenever the terminal outputs a LF or NL.
*
* @event linefeed
*/
this._terminal.emit('linefeed');
}
/**
* CR
* Carriage Return (Ctrl-M).
*/
public carriageReturn(): void {
this._terminal.buffer.x = 0;
}
/**
* BS
* Backspace (Ctrl-H).
*/
public backspace(): void {
if (this._terminal.buffer.x > 0) {
this._terminal.buffer.x--;
}
}
/**
* TAB
* Horizontal Tab (HT) (Ctrl-I).
*/
public tab(): void {
const originalX = this._terminal.buffer.x;
this._terminal.buffer.x = this._terminal.buffer.nextStop();
if (this._terminal.options.screenReaderMode) {
this._terminal.emit('a11y.tab', this._terminal.buffer.x - originalX);
}
}
/**
* SO
* Shift Out (Ctrl-N) -> Switch to Alternate Character Set. This invokes the
* G1 character set.
*/
public shiftOut(): void {
this._terminal.setgLevel(1);
}
/**
* SI
* Shift In (Ctrl-O) -> Switch to Standard Character Set. This invokes the G0
* character set (the default).
*/
public shiftIn(): void {
this._terminal.setgLevel(0);
}
/**
* CSI Ps @
* Insert Ps (Blank) Character(s) (default = 1) (ICH).
*/
public insertChars(params: number[]): void {
let param = params[0];
if (param < 1) param = 1;
// make buffer local for faster access
const buffer = this._terminal.buffer;
const row = buffer.y + buffer.ybase;
let j = buffer.x;
const ch: CharData = [this._terminal.eraseAttr(), ' ', 1, 32]; // xterm
while (param-- && j < this._terminal.cols) {
buffer.lines.get(row).splice(j++, 0, ch);
buffer.lines.get(row).pop();
}
}
/**
* CSI Ps A
* Cursor Up Ps Times (default = 1) (CUU).
*/
public cursorUp(params: number[]): void {
let param = params[0];
if (param < 1) {
param = 1;
}
this._terminal.buffer.y -= param;
if (this._terminal.buffer.y < 0) {
this._terminal.buffer.y = 0;
}
}
/**
* CSI Ps B
* Cursor Down Ps Times (default = 1) (CUD).
*/
public cursorDown(params: number[]): void {
let param = params[0];
if (param < 1) {
param = 1;
}
this._terminal.buffer.y += param;
if (this._terminal.buffer.y >= this._terminal.rows) {
this._terminal.buffer.y = this._terminal.rows - 1;
}
// If the end of the line is hit, prevent this action from wrapping around to the next line.
if (this._terminal.buffer.x >= this._terminal.cols) {
this._terminal.buffer.x--;
}
}
/**
* CSI Ps C
* Cursor Forward Ps Times (default = 1) (CUF).
*/
public cursorForward(params: number[]): void {
let param = params[0];
if (param < 1) {
param = 1;
}
this._terminal.buffer.x += param;
if (this._terminal.buffer.x >= this._terminal.cols) {
this._terminal.buffer.x = this._terminal.cols - 1;
}
}
/**
* CSI Ps D
* Cursor Backward Ps Times (default = 1) (CUB).
*/
public cursorBackward(params: number[]): void {
let param = params[0];
if (param < 1) {
param = 1;
}
// If the end of the line is hit, prevent this action from wrapping around to the next line.
if (this._terminal.buffer.x >= this._terminal.cols) {
this._terminal.buffer.x--;
}
this._terminal.buffer.x -= param;
if (this._terminal.buffer.x < 0) {
this._terminal.buffer.x = 0;
}
}
/**
* CSI Ps E
* Cursor Next Line Ps Times (default = 1) (CNL).
* same as CSI Ps B ?
*/
public cursorNextLine(params: number[]): void {
let param = params[0];
if (param < 1) {
param = 1;
}
this._terminal.buffer.y += param;
if (this._terminal.buffer.y >= this._terminal.rows) {
this._terminal.buffer.y = this._terminal.rows - 1;
}
this._terminal.buffer.x = 0;
}
/**
* CSI Ps F
* Cursor Preceding Line Ps Times (default = 1) (CNL).
* reuse CSI Ps A ?
*/
public cursorPrecedingLine(params: number[]): void {
let param = params[0];
if (param < 1) {
param = 1;
}
this._terminal.buffer.y -= param;
if (this._terminal.buffer.y < 0) {
this._terminal.buffer.y = 0;
}
this._terminal.buffer.x = 0;
}
/**
* CSI Ps G
* Cursor Character Absolute [column] (default = [row,1]) (CHA).
*/
public cursorCharAbsolute(params: number[]): void {
let param = params[0];
if (param < 1) {
param = 1;
}
this._terminal.buffer.x = param - 1;
}
/**
* CSI Ps ; Ps H
* Cursor Position [row;column] (default = [1,1]) (CUP).
*/
public cursorPosition(params: number[]): void {
let col: number;
let row: number = params[0] - 1;
if (params.length >= 2) {
col = params[1] - 1;
} else {
col = 0;
}
if (row < 0) {
row = 0;
} else if (row >= this._terminal.rows) {
row = this._terminal.rows - 1;
}
if (col < 0) {
col = 0;
} else if (col >= this._terminal.cols) {
col = this._terminal.cols - 1;
}
this._terminal.buffer.x = col;
this._terminal.buffer.y = row;
}
/**
* CSI Ps I
* Cursor Forward Tabulation Ps tab stops (default = 1) (CHT).
*/
public cursorForwardTab(params: number[]): void {
let param = params[0] || 1;
while (param--) {
this._terminal.buffer.x = this._terminal.buffer.nextStop();
}
}
/**
* CSI Ps J Erase in Display (ED).
* Ps = 0 -> Erase Below (default).
* Ps = 1 -> Erase Above.
* Ps = 2 -> Erase All.
* Ps = 3 -> Erase Saved Lines (xterm).
* CSI ? Ps J
* Erase in Display (DECSED).
* Ps = 0 -> Selective Erase Below (default).
* Ps = 1 -> Selective Erase Above.
* Ps = 2 -> Selective Erase All.
*/
public eraseInDisplay(params: number[]): void {
let j;
switch (params[0]) {
case 0:
this._terminal.eraseRight(this._terminal.buffer.x, this._terminal.buffer.y);
j = this._terminal.buffer.y + 1;
for (; j < this._terminal.rows; j++) {
this._terminal.eraseLine(j);
}
break;
case 1:
this._terminal.eraseLeft(this._terminal.buffer.x, this._terminal.buffer.y);
j = this._terminal.buffer.y;
while (j--) {
this._terminal.eraseLine(j);
}
break;
case 2:
j = this._terminal.rows;
while (j--) this._terminal.eraseLine(j);
break;
case 3:
// Clear scrollback (everything not in viewport)
const scrollBackSize = this._terminal.buffer.lines.length - this._terminal.rows;
if (scrollBackSize > 0) {
this._terminal.buffer.lines.trimStart(scrollBackSize);
this._terminal.buffer.ybase = Math.max(this._terminal.buffer.ybase - scrollBackSize, 0);
this._terminal.buffer.ydisp = Math.max(this._terminal.buffer.ydisp - scrollBackSize, 0);
// Force a scroll event to refresh viewport
this._terminal.emit('scroll', 0);
}
break;
}
}
/**
* CSI Ps K Erase in Line (EL).
* Ps = 0 -> Erase to Right (default).
* Ps = 1 -> Erase to Left.
* Ps = 2 -> Erase All.
* CSI ? Ps K
* Erase in Line (DECSEL).
* Ps = 0 -> Selective Erase to Right (default).
* Ps = 1 -> Selective Erase to Left.
* Ps = 2 -> Selective Erase All.
*/
public eraseInLine(params: number[]): void {
switch (params[0]) {
case 0:
this._terminal.eraseRight(this._terminal.buffer.x, this._terminal.buffer.y);
break;
case 1:
this._terminal.eraseLeft(this._terminal.buffer.x, this._terminal.buffer.y);
break;
case 2:
this._terminal.eraseLine(this._terminal.buffer.y);
break;
}
}
/**
* CSI Ps L
* Insert Ps Line(s) (default = 1) (IL).
*/
public insertLines(params: number[]): void {
let param: number = params[0];
if (param < 1) {
param = 1;
}
// make buffer local for faster access
const buffer = this._terminal.buffer;
let row: number = buffer.y + buffer.ybase;
let scrollBottomRowsOffset = this._terminal.rows - 1 - buffer.scrollBottom;
let scrollBottomAbsolute = this._terminal.rows - 1 + buffer.ybase - scrollBottomRowsOffset + 1;
while (param--) {
// test: echo -e '\e[44m\e[1L\e[0m'
// blankLine(true) - xterm/linux behavior
buffer.lines.splice(scrollBottomAbsolute - 1, 1);
buffer.lines.splice(row, 0, this._terminal.blankLine(true));
}
// this.maxRange();
this._terminal.updateRange(buffer.y);
this._terminal.updateRange(buffer.scrollBottom);
}
/**
* CSI Ps M
* Delete Ps Line(s) (default = 1) (DL).
*/
public deleteLines(params: number[]): void {
let param = params[0];
if (param < 1) {
param = 1;
}
// make buffer local for faster access
const buffer = this._terminal.buffer;
const row: number = buffer.y + buffer.ybase;
let j: number;
j = this._terminal.rows - 1 - buffer.scrollBottom;
j = this._terminal.rows - 1 + buffer.ybase - j;
while (param--) {
// test: echo -e '\e[44m\e[1M\e[0m'
// blankLine(true) - xterm/linux behavior
buffer.lines.splice(row, 1);
buffer.lines.splice(j, 0, this._terminal.blankLine(true));
}
// this.maxRange();
this._terminal.updateRange(buffer.y);
this._terminal.updateRange(buffer.scrollBottom);
}
/**
* CSI Ps P
* Delete Ps Character(s) (default = 1) (DCH).
*/
public deleteChars(params: number[]): void {
let param: number = params[0];
if (param < 1) {
param = 1;
}
// make buffer local for faster access
const buffer = this._terminal.buffer;
const row = buffer.y + buffer.ybase;
const ch: CharData = [this._terminal.eraseAttr(), ' ', 1, 32]; // xterm
while (param--) {
buffer.lines.get(row).splice(buffer.x, 1);
buffer.lines.get(row).push(ch);
}
this._terminal.updateRange(buffer.y);
}
/**
* CSI Ps S Scroll up Ps lines (default = 1) (SU).
*/
public scrollUp(params: number[]): void {
let param = params[0] || 1;
// make buffer local for faster access
const buffer = this._terminal.buffer;
while (param--) {
buffer.lines.splice(buffer.ybase + buffer.scrollTop, 1);
buffer.lines.splice(buffer.ybase + buffer.scrollBottom, 0, this._terminal.blankLine());
}
// this.maxRange();
this._terminal.updateRange(buffer.scrollTop);
this._terminal.updateRange(buffer.scrollBottom);
}
/**
* CSI Ps T Scroll down Ps lines (default = 1) (SD).
*/
public scrollDown(params: number[], collect?: string): void {
if (params.length < 2 && !collect) {
let param = params[0] || 1;
// make buffer local for faster access
const buffer = this._terminal.buffer;
while (param--) {
buffer.lines.splice(buffer.ybase + buffer.scrollBottom, 1);
buffer.lines.splice(buffer.ybase + buffer.scrollTop, 0, this._terminal.blankLine());
}
// this.maxRange();
this._terminal.updateRange(buffer.scrollTop);
this._terminal.updateRange(buffer.scrollBottom);
}
}
/**
* CSI Ps X
* Erase Ps Character(s) (default = 1) (ECH).
*/
public eraseChars(params: number[]): void {
let param = params[0];
if (param < 1) {
param = 1;
}
// make buffer local for faster access
const buffer = this._terminal.buffer;
const row = buffer.y + buffer.ybase;
let j = buffer.x;
const ch: CharData = [this._terminal.eraseAttr(), ' ', 1, 32]; // xterm
while (param-- && j < this._terminal.cols) {
buffer.lines.get(row)[j++] = ch;
}
}
/**
* CSI Ps Z Cursor Backward Tabulation Ps tab stops (default = 1) (CBT).
*/
public cursorBackwardTab(params: number[]): void {
let param = params[0] || 1;
// make buffer local for faster access
const buffer = this._terminal.buffer;
while (param--) {
buffer.x = buffer.prevStop();
}
}
/**
* CSI Pm ` Character Position Absolute
* [column] (default = [row,1]) (HPA).
*/
public charPosAbsolute(params: number[]): void {
let param = params[0];
if (param < 1) {
param = 1;
}
this._terminal.buffer.x = param - 1;
if (this._terminal.buffer.x >= this._terminal.cols) {
this._terminal.buffer.x = this._terminal.cols - 1;
}
}
/**
* CSI Pm a Character Position Relative
* [columns] (default = [row,col+1]) (HPR)
* reuse CSI Ps C ?
*/
public HPositionRelative(params: number[]): void {
let param = params[0];
if (param < 1) {
param = 1;
}
this._terminal.buffer.x += param;
if (this._terminal.buffer.x >= this._terminal.cols) {
this._terminal.buffer.x = this._terminal.cols - 1;
}
}
/**
* CSI Ps b Repeat the preceding graphic character Ps times (REP).
*/
public repeatPrecedingCharacter(params: number[]): void {
let param = params[0] || 1;
// make buffer local for faster access
const buffer = this._terminal.buffer;
const line = buffer.lines.get(buffer.ybase + buffer.y);
const ch = line[buffer.x - 1] || [this._terminal.defAttr, ' ', 1, 32];
while (param--) {
line[buffer.x++] = ch;
}
}
/**
* CSI Ps c Send Device Attributes (Primary DA).
* Ps = 0 or omitted -> request attributes from terminal. The
* response depends on the decTerminalID resource setting.
* -> CSI ? 1 ; 2 c (``VT100 with Advanced Video Option'')
* -> CSI ? 1 ; 0 c (``VT101 with No Options'')
* -> CSI ? 6 c (``VT102'')
* -> CSI ? 6 0 ; 1 ; 2 ; 6 ; 8 ; 9 ; 1 5 ; c (``VT220'')
* The VT100-style response parameters do not mean anything by
* themselves. VT220 parameters do, telling the host what fea-
* tures the terminal supports:
* Ps = 1 -> 132-columns.
* Ps = 2 -> Printer.
* Ps = 6 -> Selective erase.
* Ps = 8 -> User-defined keys.
* Ps = 9 -> National replacement character sets.
* Ps = 1 5 -> Technical characters.
* Ps = 2 2 -> ANSI color, e.g., VT525.
* Ps = 2 9 -> ANSI text locator (i.e., DEC Locator mode).
* CSI > Ps c
* Send Device Attributes (Secondary DA).
* Ps = 0 or omitted -> request the terminal's identification
* code. The response depends on the decTerminalID resource set-
* ting. It should apply only to VT220 and up, but xterm extends
* this to VT100.
* -> CSI > Pp ; Pv ; Pc c
* where Pp denotes the terminal type
* Pp = 0 -> ``VT100''.
* Pp = 1 -> ``VT220''.
* and Pv is the firmware version (for xterm, this was originally
* the XFree86 patch number, starting with 95). In a DEC termi-
* nal, Pc indicates the ROM cartridge registration number and is
* always zero.
* More information:
* xterm/charproc.c - line 2012, for more information.
* vim responds with ^[[?0c or ^[[?1c after the terminal's response (?)
*/
public sendDeviceAttributes(params: number[], collect?: string): void {
if (params[0] > 0) {
return;
}
if (!collect) {
if (this._terminal.is('xterm') || this._terminal.is('rxvt-unicode') || this._terminal.is('screen')) {
this._terminal.send(C0.ESC + '[?1;2c');
} else if (this._terminal.is('linux')) {
this._terminal.send(C0.ESC + '[?6c');
}
} else if (collect === '>') {
// xterm and urxvt
// seem to spit this
// out around ~370 times (?).
if (this._terminal.is('xterm')) {
this._terminal.send(C0.ESC + '[>0;276;0c');
} else if (this._terminal.is('rxvt-unicode')) {
this._terminal.send(C0.ESC + '[>85;95;0c');
} else if (this._terminal.is('linux')) {
// not supported by linux console.
// linux console echoes parameters.
this._terminal.send(params[0] + 'c');
} else if (this._terminal.is('screen')) {
this._terminal.send(C0.ESC + '[>83;40003;0c');
}
}
}
/**
* CSI Pm d Vertical Position Absolute (VPA)
* [row] (default = [1,column])
*/
public linePosAbsolute(params: number[]): void {
let param = params[0];
if (param < 1) {
param = 1;
}
this._terminal.buffer.y = param - 1;
if (this._terminal.buffer.y >= this._terminal.rows) {
this._terminal.buffer.y = this._terminal.rows - 1;
}
}
/**
* CSI Pm e Vertical Position Relative (VPR)
* [rows] (default = [row+1,column])
* reuse CSI Ps B ?
*/
public VPositionRelative(params: number[]): void {
let param = params[0];
if (param < 1) {
param = 1;
}
this._terminal.buffer.y += param;
if (this._terminal.buffer.y >= this._terminal.rows) {
this._terminal.buffer.y = this._terminal.rows - 1;
}
// If the end of the line is hit, prevent this action from wrapping around to the next line.
if (this._terminal.buffer.x >= this._terminal.cols) {
this._terminal.buffer.x--;
}
}
/**
* CSI Ps ; Ps f
* Horizontal and Vertical Position [row;column] (default =
* [1,1]) (HVP).
*/
public HVPosition(params: number[]): void {
if (params[0] < 1) params[0] = 1;
if (params[1] < 1) params[1] = 1;
this._terminal.buffer.y = params[0] - 1;
if (this._terminal.buffer.y >= this._terminal.rows) {
this._terminal.buffer.y = this._terminal.rows - 1;
}
this._terminal.buffer.x = params[1] - 1;
if (this._terminal.buffer.x >= this._terminal.cols) {
this._terminal.buffer.x = this._terminal.cols - 1;
}
}
/**
* CSI Ps g Tab Clear (TBC).
* Ps = 0 -> Clear Current Column (default).
* Ps = 3 -> Clear All.
* Potentially:
* Ps = 2 -> Clear Stops on Line.
* http://vt100.net/annarbor/aaa-ug/section6.html
*/
public tabClear(params: number[]): void {
let param = params[0];
if (param <= 0) {
delete this._terminal.buffer.tabs[this._terminal.buffer.x];
} else if (param === 3) {
this._terminal.buffer.tabs = {};
}
}
/**
* CSI Pm h Set Mode (SM).
* Ps = 2 -> Keyboard Action Mode (AM).
* Ps = 4 -> Insert Mode (IRM).
* Ps = 1 2 -> Send/receive (SRM).
* Ps = 2 0 -> Automatic Newline (LNM).
* CSI ? Pm h
* DEC Private Mode Set (DECSET).
* Ps = 1 -> Application Cursor Keys (DECCKM).
* Ps = 2 -> Designate USASCII for character sets G0-G3
* (DECANM), and set VT100 mode.
* Ps = 3 -> 132 Column Mode (DECCOLM).
* Ps = 4 -> Smooth (Slow) Scroll (DECSCLM).
* Ps = 5 -> Reverse Video (DECSCNM).
* Ps = 6 -> Origin Mode (DECOM).
* Ps = 7 -> Wraparound Mode (DECAWM).
* Ps = 8 -> Auto-repeat Keys (DECARM).
* Ps = 9 -> Send Mouse X & Y on button press. See the sec-
* tion Mouse Tracking.
* Ps = 1 0 -> Show toolbar (rxvt).
* Ps = 1 2 -> Start Blinking Cursor (att610).
* Ps = 1 8 -> Print form feed (DECPFF).
* Ps = 1 9 -> Set print extent to full screen (DECPEX).
* Ps = 2 5 -> Show Cursor (DECTCEM).
* Ps = 3 0 -> Show scrollbar (rxvt).
* Ps = 3 5 -> Enable font-shifting functions (rxvt).
* Ps = 3 8 -> Enter Tektronix Mode (DECTEK).
* Ps = 4 0 -> Allow 80 -> 132 Mode.
* Ps = 4 1 -> more(1) fix (see curses resource).
* Ps = 4 2 -> Enable Nation Replacement Character sets (DECN-
* RCM).
* Ps = 4 4 -> Turn On Margin Bell.
* Ps = 4 5 -> Reverse-wraparound Mode.
* Ps = 4 6 -> Start Logging. This is normally disabled by a
* compile-time option.
* Ps = 4 7 -> Use Alternate Screen Buffer. (This may be dis-
* abled by the titeInhibit resource).
* Ps = 6 6 -> Application keypad (DECNKM).
* Ps = 6 7 -> Backarrow key sends backspace (DECBKM).
* Ps = 1 0 0 0 -> Send Mouse X & Y on button press and
* release. See the section Mouse Tracking.
* Ps = 1 0 0 1 -> Use Hilite Mouse Tracking.
* Ps = 1 0 0 2 -> Use Cell Motion Mouse Tracking.
* Ps = 1 0 0 3 -> Use All Motion Mouse Tracking.
* Ps = 1 0 0 4 -> Send FocusIn/FocusOut events.
* Ps = 1 0 0 5 -> Enable Extended Mouse Mode.
* Ps = 1 0 1 0 -> Scroll to bottom on tty output (rxvt).
* Ps = 1 0 1 1 -> Scroll to bottom on key press (rxvt).
* Ps = 1 0 3 4 -> Interpret "meta" key, sets eighth bit.
* (enables the eightBitInput resource).
* Ps = 1 0 3 5 -> Enable special modifiers for Alt and Num-
* Lock keys. (This enables the numLock resource).
* Ps = 1 0 3 6 -> Send ESC when Meta modifies a key. (This
* enables the metaSendsEscape resource).
* Ps = 1 0 3 7 -> Send DEL from the editing-keypad Delete
* key.
* Ps = 1 0 3 9 -> Send ESC when Alt modifies a key. (This
* enables the altSendsEscape resource).
* Ps = 1 0 4 0 -> Keep selection even if not highlighted.
* (This enables the keepSelection resource).
* Ps = 1 0 4 1 -> Use the CLIPBOARD selection. (This enables
* the selectToClipboard resource).
* Ps = 1 0 4 2 -> Enable Urgency window manager hint when
* Control-G is received. (This enables the bellIsUrgent
* resource).
* Ps = 1 0 4 3 -> Enable raising of the window when Control-G
* is received. (enables the popOnBell resource).
* Ps = 1 0 4 7 -> Use Alternate Screen Buffer. (This may be
* disabled by the titeInhibit resource).
* Ps = 1 0 4 8 -> Save cursor as in DECSC. (This may be dis-
* abled by the titeInhibit resource).
* Ps = 1 0 4 9 -> Save cursor as in DECSC and use Alternate
* Screen Buffer, clearing it first. (This may be disabled by
* the titeInhibit resource). This combines the effects of the 1
* 0 4 7 and 1 0 4 8 modes. Use this with terminfo-based
* applications rather than the 4 7 mode.
* Ps = 1 0 5 0 -> Set terminfo/termcap function-key mode.
* Ps = 1 0 5 1 -> Set Sun function-key mode.
* Ps = 1 0 5 2 -> Set HP function-key mode.
* Ps = 1 0 5 3 -> Set SCO function-key mode.
* Ps = 1 0 6 0 -> Set legacy keyboard emulation (X11R6).
* Ps = 1 0 6 1 -> Set VT220 keyboard emulation.
* Ps = 2 0 0 4 -> Set bracketed paste mode.
* Modes:
* http: *vt100.net/docs/vt220-rm/chapter4.html
*/
public setMode(params: number[], collect?: string): void {
if (params.length > 1) {
for (let i = 0; i < params.length; i++) {
this.setMode([params[i]]);
}
return;
}
if (!collect) {
switch (params[0]) {
case 4:
this._terminal.insertMode = true;
break;
case 20:
// this._t.convertEol = true;
break;
}
} else if (collect === '?') {
switch (params[0]) {
case 1:
this._terminal.applicationCursor = true;
break;
case 2:
this._terminal.setgCharset(0, DEFAULT_CHARSET);
this._terminal.setgCharset(1, DEFAULT_CHARSET);
this._terminal.setgCharset(2, DEFAULT_CHARSET);
this._terminal.setgCharset(3, DEFAULT_CHARSET);
// set VT100 mode here
break;
case 3: // 132 col mode
this._terminal.savedCols = this._terminal.cols;
this._terminal.resize(132, this._terminal.rows);
break;
case 6:
this._terminal.originMode = true;
break;
case 7:
this._terminal.wraparoundMode = true;
break;
case 12:
// this.cursorBlink = true;
break;
case 66:
this._terminal.log('Serial port requested application keypad.');
this._terminal.applicationKeypad = true;
this._terminal.viewport.syncScrollArea();
break;
case 9: // X10 Mouse
// no release, no motion, no wheel, no modifiers.
case 1000: // vt200 mouse
// no motion.
// no modifiers, except control on the wheel.
case 1002: // button event mouse
case 1003: // any event mouse
// any event - sends motion events,
// even if there is no button held down.
// TODO: Why are params[0] compares nested within a switch for params[0]?
this._terminal.x10Mouse = params[0] === 9;
this._terminal.vt200Mouse = params[0] === 1000;
this._terminal.normalMouse = params[0] > 1000;
this._terminal.mouseEvents = true;
this._terminal.element.classList.add('enable-mouse-events');
this._terminal.selectionManager.disable();
this._terminal.log('Binding to mouse events.');
break;
case 1004: // send focusin/focusout events
// focusin: ^[[I
// focusout: ^[[O
this._terminal.sendFocus = true;
break;
case 1005: // utf8 ext mode mouse
this._terminal.utfMouse = true;
// for wide terminals
// simply encodes large values as utf8 characters
break;
case 1006: // sgr ext mode mouse
this._terminal.sgrMouse = true;
// for wide terminals
// does not add 32 to fields
// press: ^[[<b;x;yM
// release: ^[[<b;x;ym
break;
case 1015: // urxvt ext mode mouse
this._terminal.urxvtMouse = true;
// for wide terminals
// numbers for fields
// press: ^[[b;x;yM
// motion: ^[[b;x;yT
break;
case 25: // show cursor
this._terminal.cursorHidden = false;
break;
case 1049: // alt screen buffer cursor
// TODO: Not sure if we need to save/restore after switching the buffer
// this.saveCursor(params);
// FALL-THROUGH
case 47: // alt screen buffer
case 1047: // alt screen buffer
this._terminal.buffers.activateAltBuffer();
this._terminal.viewport.syncScrollArea();
this._terminal.showCursor();
break;
case 2004: // bracketed paste mode (https://cirw.in/blog/bracketed-paste)
this._terminal.bracketedPasteMode = true;
break;
}
}
}
/**
* CSI Pm l Reset Mode (RM).
* Ps = 2 -> Keyboard Action Mode (AM).
* Ps = 4 -> Replace Mode (IRM).
* Ps = 1 2 -> Send/receive (SRM).
* Ps = 2 0 -> Normal Linefeed (LNM).
* CSI ? Pm l
* DEC Private Mode Reset (DECRST).
* Ps = 1 -> Normal Cursor Keys (DECCKM).
* Ps = 2 -> Designate VT52 mode (DECANM).
* Ps = 3 -> 80 Column Mode (DECCOLM).
* Ps = 4 -> Jump (Fast) Scroll (DECSCLM).
* Ps = 5 -> Normal Video (DECSCNM).
* Ps = 6 -> Normal Cursor Mode (DECOM).
* Ps = 7 -> No Wraparound Mode (DECAWM).
* Ps = 8 -> No Auto-repeat Keys (DECARM).
* Ps = 9 -> Don't send Mouse X & Y on button press.
* Ps = 1 0 -> Hide toolbar (rxvt).
* Ps = 1 2 -> Stop Blinking Cursor (att610).
* Ps = 1 8 -> Don't print form feed (DECPFF).
* Ps = 1 9 -> Limit print to scrolling region (DECPEX).
* Ps = 2 5 -> Hide Cursor (DECTCEM).
* Ps = 3 0 -> Don't show scrollbar (rxvt).
* Ps = 3 5 -> Disable font-shifting functions (rxvt).
* Ps = 4 0 -> Disallow 80 -> 132 Mode.
* Ps = 4 1 -> No more(1) fix (see curses resource).
* Ps = 4 2 -> Disable Nation Replacement Character sets (DEC-
* NRCM).
* Ps = 4 4 -> Turn Off Margin Bell.
* Ps = 4 5 -> No Reverse-wraparound Mode.
* Ps = 4 6 -> Stop Logging. (This is normally disabled by a
* compile-time option).
* Ps = 4 7 -> Use Normal Screen Buffer.
* Ps = 6 6 -> Numeric keypad (DECNKM).
* Ps = 6 7 -> Backarrow key sends delete (DECBKM).
* Ps = 1 0 0 0 -> Don't send Mouse X & Y on button press and
* release. See the section Mouse Tracking.
* Ps = 1 0 0 1 -> Don't use Hilite Mouse Tracking.
* Ps = 1 0 0 2 -> Don't use Cell Motion Mouse Tracking.
* Ps = 1 0 0 3 -> Don't use All Motion Mouse Tracking.
* Ps = 1 0 0 4 -> Don't send FocusIn/FocusOut events.
* Ps = 1 0 0 5 -> Disable Extended Mouse Mode.
* Ps = 1 0 1 0 -> Don't scroll to bottom on tty output
* (rxvt).
* Ps = 1 0 1 1 -> Don't scroll to bottom on key press (rxvt).
* Ps = 1 0 3 4 -> Don't interpret "meta" key. (This disables
* the eightBitInput resource).
* Ps = 1 0 3 5 -> Disable special modifiers for Alt and Num-
* Lock keys. (This disables the numLock resource).
* Ps = 1 0 3 6 -> Don't send ESC when Meta modifies a key.
* (This disables the metaSendsEscape resource).
* Ps = 1 0 3 7 -> Send VT220 Remove from the editing-keypad
* Delete key.
* Ps = 1 0 3 9 -> Don't send ESC when Alt modifies a key.
* (This disables the altSendsEscape resource).
* Ps = 1 0 4 0 -> Do not keep selection when not highlighted.
* (This disables the keepSelection resource).
* Ps = 1 0 4 1 -> Use the PRIMARY selection. (This disables
* the selectToClipboard resource).
* Ps = 1 0 4 2 -> Disable Urgency window manager hint when
* Control-G is received. (This disables the bellIsUrgent
* resource).
* Ps = 1 0 4 3 -> Disable raising of the window when Control-
* G is received. (This disables the popOnBell resource).
* Ps = 1 0 4 7 -> Use Normal Screen Buffer, clearing screen
* first if in the Alternate Screen. (This may be disabled by
* the titeInhibit resource).
* Ps = 1 0 4 8 -> Restore cursor as in DECRC. (This may be
* disabled by the titeInhibit resource).
* Ps = 1 0 4 9 -> Use Normal Screen Buffer and restore cursor
* as in DECRC. (This may be disabled by the titeInhibit
* resource). This combines the effects of the 1 0 4 7 and 1 0
* 4 8 modes. Use this with terminfo-based applications rather
* than the 4 7 mode.
* Ps = 1 0 5 0 -> Reset terminfo/termcap function-key mode.
* Ps = 1 0 5 1 -> Reset Sun function-key mode.
* Ps = 1 0 5 2 -> Reset HP function-key mode.
* Ps = 1 0 5 3 -> Reset SCO function-key mode.
* Ps = 1 0 6 0 -> Reset legacy keyboard emulation (X11R6).
* Ps = 1 0 6 1 -> Reset keyboard emulation to Sun/PC style.
* Ps = 2 0 0 4 -> Reset bracketed paste mode.
*/
public resetMode(params: number[], collect?: string): void {
if (params.length > 1) {
for (let i = 0; i < params.length; i++) {
this.resetMode([params[i]]);
}
return;
}
if (!collect) {
switch (params[0]) {
case 4:
this._terminal.insertMode = false;
break;
case 20:
// this._t.convertEol = false;
break;
}
} else if (collect === '?') {
switch (params[0]) {
case 1:
this._terminal.applicationCursor = false;
break;
case 3:
if (this._terminal.cols === 132 && this._terminal.savedCols) {
this._terminal.resize(this._terminal.savedCols, this._terminal.rows);
}
delete this._terminal.savedCols;
break;
case 6:
this._terminal.originMode = false;
break;
case 7:
this._terminal.wraparoundMode = false;
break;
case 12:
// this.cursorBlink = false;
break;
case 66:
this._terminal.log('Switching back to normal keypad.');
this._terminal.applicationKeypad = false;
this._terminal.viewport.syncScrollArea();
break;
case 9: // X10 Mouse
case 1000: // vt200 mouse
case 1002: // button event mouse
case 1003: // any event mouse
this._terminal.x10Mouse = false;
this._terminal.vt200Mouse = false;
this._terminal.normalMouse = false;
this._terminal.mouseEvents = false;
this._terminal.element.classList.remove('enable-mouse-events');
this._terminal.selectionManager.enable();
break;
case 1004: // send focusin/focusout events
this._terminal.sendFocus = false;
break;
case 1005: // utf8 ext mode mouse
this._terminal.utfMouse = false;
break;
case 1006: // sgr ext mode mouse
this._terminal.sgrMouse = false;
break;
case 1015: // urxvt ext mode mouse
this._terminal.urxvtMouse = false;
break;
case 25: // hide cursor
this._terminal.cursorHidden = true;
break;
case 1049: // alt screen buffer cursor
// FALL-THROUGH
case 47: // normal screen buffer
case 1047: // normal screen buffer - clearing it first
// Ensure the selection manager has the correct buffer
this._terminal.buffers.activateNormalBuffer();
// TODO: Not sure if we need to save/restore after switching the buffer
// if (params[0] === 1049) {
// this.restoreCursor(params);
// }
this._terminal.refresh(0, this._terminal.rows - 1);
this._terminal.viewport.syncScrollArea();
this._terminal.showCursor();
break;
case 2004: // bracketed paste mode (https://cirw.in/blog/bracketed-paste)
this._terminal.bracketedPasteMode = false;
break;
}
}
}
/**
* CSI Pm m Character Attributes (SGR).
* Ps = 0 -> Normal (default).
* Ps = 1 -> Bold.
* Ps = 2 -> Faint, decreased intensity (ISO 6429).
* Ps = 4 -> Underlined.
* Ps = 5 -> Blink (appears as Bold).
* Ps = 7 -> Inverse.
* Ps = 8 -> Invisible, i.e., hidden (VT300).
* Ps = 2 2 -> Normal (neither bold nor faint).
* Ps = 2 4 -> Not underlined.
* Ps = 2 5 -> Steady (not blinking).
* Ps = 2 7 -> Positive (not inverse).
* Ps = 2 8 -> Visible, i.e., not hidden (VT300).
* Ps = 3 0 -> Set foreground color to Black.
* Ps = 3 1 -> Set foreground color to Red.
* Ps = 3 2 -> Set foreground color to Green.
* Ps = 3 3 -> Set foreground color to Yellow.
* Ps = 3 4 -> Set foreground color to Blue.
* Ps = 3 5 -> Set foreground color to Magenta.
* Ps = 3 6 -> Set foreground color to Cyan.
* Ps = 3 7 -> Set foreground color to White.
* Ps = 3 9 -> Set foreground color to default (original).
* Ps = 4 0 -> Set background color to Black.
* Ps = 4 1 -> Set background color to Red.
* Ps = 4 2 -> Set background color to Green.
* Ps = 4 3 -> Set background color to Yellow.
* Ps = 4 4 -> Set background color to Blue.
* Ps = 4 5 -> Set background color to Magenta.
* Ps = 4 6 -> Set background color to Cyan.
* Ps = 4 7 -> Set background color to White.
* Ps = 4 9 -> Set background color to default (original).
*
* If 16-color support is compiled, the following apply. Assume
* that xterm's resources are set so that the ISO color codes are
* the first 8 of a set of 16. Then the aixterm colors are the
* bright versions of the ISO colors:
* Ps = 9 0 -> Set foreground color to Black.
* Ps = 9 1 -> Set foreground color to Red.
* Ps = 9 2 -> Set foreground color to Green.
* Ps = 9 3 -> Set foreground color to Yellow.
* Ps = 9 4 -> Set foreground color to Blue.
* Ps = 9 5 -> Set foreground color to Magenta.
* Ps = 9 6 -> Set foreground color to Cyan.
* Ps = 9 7 -> Set foreground color to White.
* Ps = 1 0 0 -> Set background color to Black.
* Ps = 1 0 1 -> Set background color to Red.
* Ps = 1 0 2 -> Set background color to Green.
* Ps = 1 0 3 -> Set background color to Yellow.
* Ps = 1 0 4 -> Set background color to Blue.
* Ps = 1 0 5 -> Set background color to Magenta.
* Ps = 1 0 6 -> Set background color to Cyan.
* Ps = 1 0 7 -> Set background color to White.
*
* If xterm is compiled with the 16-color support disabled, it
* supports the following, from rxvt:
* Ps = 1 0 0 -> Set foreground and background color to
* default.
*
* If 88- or 256-color support is compiled, the following apply.
* Ps = 3 8 ; 5 ; Ps -> Set foreground color to the second
* Ps.
* Ps = 4 8 ; 5 ; Ps -> Set background color to the second
* Ps.
*/
public charAttributes(params: number[]): void {
// Optimize a single SGR0.
if (params.length === 1 && params[0] === 0) {
this._terminal.curAttr = this._terminal.defAttr;
return;
}
const l = params.length;
let flags = this._terminal.curAttr >> 18;
let fg = (this._terminal.curAttr >> 9) & 0x1ff;
let bg = this._terminal.curAttr & 0x1ff;
let p;
for (let i = 0; i < l; i++) {
p = params[i];
if (p >= 30 && p <= 37) {
// fg color 8
fg = p - 30;
} else if (p >= 40 && p <= 47) {
// bg color 8
bg = p - 40;
} else if (p >= 90 && p <= 97) {
// fg color 16
p += 8;
fg = p - 90;
} else if (p >= 100 && p <= 107) {
// bg color 16
p += 8;
bg = p - 100;
} else if (p === 0) {
// default
flags = this._terminal.defAttr >> 18;
fg = (this._terminal.defAttr >> 9) & 0x1ff;
bg = this._terminal.defAttr & 0x1ff;
// flags = 0;
// fg = 0x1ff;
// bg = 0x1ff;
} else if (p === 1) {
// bold text
flags |= FLAGS.BOLD;
} else if (p === 4) {
// underlined text
flags |= FLAGS.UNDERLINE;
} else if (p === 5) {
// blink
flags |= FLAGS.BLINK;
} else if (p === 7) {
// inverse and positive
// test with: echo -e '\e[31m\e[42mhello\e[7mworld\e[27mhi\e[m'
flags |= FLAGS.INVERSE;
} else if (p === 8) {
// invisible
flags |= FLAGS.INVISIBLE;
} else if (p === 2) {
// dimmed text
flags |= FLAGS.DIM;
} else if (p === 22) {
// not bold nor faint
flags &= ~FLAGS.BOLD;
flags &= ~FLAGS.DIM;
} else if (p === 24) {
// not underlined
flags &= ~FLAGS.UNDERLINE;
} else if (p === 25) {
// not blink
flags &= ~FLAGS.BLINK;
} else if (p === 27) {
// not inverse
flags &= ~FLAGS.INVERSE;
} else if (p === 28) {
// not invisible
flags &= ~FLAGS.INVISIBLE;
} else if (p === 39) {
// reset fg
fg = (this._terminal.defAttr >> 9) & 0x1ff;
} else if (p === 49) {
// reset bg
bg = this._terminal.defAttr & 0x1ff;
} else if (p === 38) {
// fg color 256
if (params[i + 1] === 2) {
i += 2;
fg = this._terminal.matchColor(
params[i] & 0xff,
params[i + 1] & 0xff,
params[i + 2] & 0xff);
if (fg === -1) fg = 0x1ff;
i += 2;
} else if (params[i + 1] === 5) {
i += 2;
p = params[i] & 0xff;
fg = p;
}
} else if (p === 48) {
// bg color 256
if (params[i + 1] === 2) {
i += 2;
bg = this._terminal.matchColor(
params[i] & 0xff,
params[i + 1] & 0xff,
params[i + 2] & 0xff);
if (bg === -1) bg = 0x1ff;
i += 2;
} else if (params[i + 1] === 5) {
i += 2;
p = params[i] & 0xff;
bg = p;
}
} else if (p === 100) {
// reset fg/bg
fg = (this._terminal.defAttr >> 9) & 0x1ff;
bg = this._terminal.defAttr & 0x1ff;
} else {
this._terminal.error('Unknown SGR attribute: %d.', p);
}
}
this._terminal.curAttr = (flags << 18) | (fg << 9) | bg;
}
/**
* CSI Ps n Device Status Report (DSR).
* Ps = 5 -> Status Report. Result (``OK'') is
* CSI 0 n
* Ps = 6 -> Report Cursor Position (CPR) [row;column].
* Result is
* CSI r ; c R
* CSI ? Ps n
* Device Status Report (DSR, DEC-specific).
* Ps = 6 -> Report Cursor Position (CPR) [row;column] as CSI
* ? r ; c R (assumes page is zero).
* Ps = 1 5 -> Report Printer status as CSI ? 1 0 n (ready).
* or CSI ? 1 1 n (not ready).
* Ps = 2 5 -> Report UDK status as CSI ? 2 0 n (unlocked)
* or CSI ? 2 1 n (locked).
* Ps = 2 6 -> Report Keyboard status as
* CSI ? 2 7 ; 1 ; 0 ; 0 n (North American).
* The last two parameters apply to VT400 & up, and denote key-
* board ready and LK01 respectively.
* Ps = 5 3 -> Report Locator status as
* CSI ? 5 3 n Locator available, if compiled-in, or
* CSI ? 5 0 n No Locator, if not.
*/
public deviceStatus(params: number[], collect?: string): void {
if (!collect) {
switch (params[0]) {
case 5:
// status report
this._terminal.send(C0.ESC + '[0n');
break;
case 6:
// cursor position
this._terminal.send(C0.ESC + '['
+ (this._terminal.buffer.y + 1)
+ ';'
+ (this._terminal.buffer.x + 1)
+ 'R');
break;
}
} else if (collect === '?') {
// modern xterm doesnt seem to
// respond to any of these except ?6, 6, and 5
switch (params[0]) {
case 6:
// cursor position
this._terminal.send(C0.ESC + '[?'
+ (this._terminal.buffer.y + 1)
+ ';'
+ (this._terminal.buffer.x + 1)
+ 'R');
break;
case 15:
// no printer
// this.send(C0.ESC + '[?11n');
break;
case 25:
// dont support user defined keys
// this.send(C0.ESC + '[?21n');
break;
case 26:
// north american keyboard
// this.send(C0.ESC + '[?27;1;0;0n');
break;
case 53:
// no dec locator/mouse
// this.send(C0.ESC + '[?50n');
break;
}
}
}
/**
* CSI ! p Soft terminal reset (DECSTR).
* http://vt100.net/docs/vt220-rm/table4-10.html
*/
public softReset(params: number[], collect?: string): void {
if (collect === '!') {
this._terminal.cursorHidden = false;
this._terminal.insertMode = false;
this._terminal.originMode = false;
this._terminal.wraparoundMode = true; // defaults: xterm - true, vt100 - false
this._terminal.applicationKeypad = false; // ?
this._terminal.viewport.syncScrollArea();
this._terminal.applicationCursor = false;
this._terminal.buffer.scrollTop = 0;
this._terminal.buffer.scrollBottom = this._terminal.rows - 1;
this._terminal.curAttr = this._terminal.defAttr;
this._terminal.buffer.x = this._terminal.buffer.y = 0; // ?
this._terminal.charset = null;
this._terminal.glevel = 0; // ??
this._terminal.charsets = [null]; // ??
}
}
/**
* CSI Ps SP q Set cursor style (DECSCUSR, VT520).
* Ps = 0 -> blinking block.
* Ps = 1 -> blinking block (default).
* Ps = 2 -> steady block.
* Ps = 3 -> blinking underline.
* Ps = 4 -> steady underline.
* Ps = 5 -> blinking bar (xterm).
* Ps = 6 -> steady bar (xterm).
*/
public setCursorStyle(params?: number[], collect?: string): void {
if (collect === ' ') {
const param = params[0] < 1 ? 1 : params[0];
switch (param) {
case 1:
case 2:
this._terminal.setOption('cursorStyle', 'block');
break;
case 3:
case 4:
this._terminal.setOption('cursorStyle', 'underline');
break;
case 5:
case 6:
this._terminal.setOption('cursorStyle', 'bar');
break;
}
const isBlinking = param % 2 === 1;
this._terminal.setOption('cursorBlink', isBlinking);
}
}
/**
* CSI Ps ; Ps r
* Set Scrolling Region [top;bottom] (default = full size of win-
* dow) (DECSTBM).
* CSI ? Pm r
*/
public setScrollRegion(params: number[], collect?: string): void {
if (collect) return;
this._terminal.buffer.scrollTop = (params[0] || 1) - 1;
this._terminal.buffer.scrollBottom = (params[1] && params[1] <= this._terminal.rows ? params[1] : this._terminal.rows) - 1;
this._terminal.buffer.x = 0;
this._terminal.buffer.y = 0;
}
/**
* CSI s
* ESC 7
* Save cursor (ANSI.SYS).
*/
public saveCursor(params: number[]): void {
this._terminal.buffer.savedX = this._terminal.buffer.x;
this._terminal.buffer.savedY = this._terminal.buffer.y;
}
/**
* CSI u
* ESC 8
* Restore cursor (ANSI.SYS).
*/
public restoreCursor(params: number[]): void {
this._terminal.buffer.x = this._terminal.buffer.savedX || 0;
this._terminal.buffer.y = this._terminal.buffer.savedY || 0;
}
/**
* OSC 0; <data> ST (set icon name + window title)
* OSC 2; <data> ST (set icon name)
* Proxy to set window title. Icon name is not supported.
*/
public setTitle(data: string): void {
this._terminal.handleTitle(data);
}
/**
* ESC E
* C1.NEL
* DEC mnemonic: NEL (https://vt100.net/docs/vt510-rm/NEL)
* Moves cursor to first position on next line.
*/
public nextLine(): void {
this._terminal.buffer.x = 0;
this.index();
}
/**
* ESC =
* DEC mnemonic: DECKPAM (https://vt100.net/docs/vt510-rm/DECKPAM.html)
* Enables the numeric keypad to send application sequences to the host.
*/
public keypadApplicationMode(): void {
this._terminal.log('Serial port requested application keypad.');
this._terminal.applicationKeypad = true;
if (this._terminal.viewport) {
this._terminal.viewport.syncScrollArea();
}
}
/**
* ESC >
* DEC mnemonic: DECKPNM (https://vt100.net/docs/vt510-rm/DECKPNM.html)
* Enables the keypad to send numeric characters to the host.
*/
public keypadNumericMode(): void {
this._terminal.log('Switching back to normal keypad.');
this._terminal.applicationKeypad = false;
if (this._terminal.viewport) {
this._terminal.viewport.syncScrollArea();
}
}
/**
* ESC % @
* ESC % G
* Select default character set. UTF-8 is not supported (string are unicode anyways)
* therefore ESC % G does the same.
*/
public selectDefaultCharset(): void {
this._terminal.setgLevel(0);
this._terminal.setgCharset(0, DEFAULT_CHARSET); // US (default)
}
/**
* ESC ( C
* Designate G0 Character Set, VT100, ISO 2022.
* ESC ) C
* Designate G1 Character Set (ISO 2022, VT100).
* ESC * C
* Designate G2 Character Set (ISO 2022, VT220).
* ESC + C
* Designate G3 Character Set (ISO 2022, VT220).
* ESC - C
* Designate G1 Character Set (VT300).
* ESC . C
* Designate G2 Character Set (VT300).
* ESC / C
* Designate G3 Character Set (VT300). C = A -> ISO Latin-1 Supplemental. - Supported?
*/
public selectCharset(collectAndFlag: string): void {
if (collectAndFlag.length !== 2) return this.selectDefaultCharset();
if (collectAndFlag[0] === '/') return; // FIXME: Is this supported?
this._terminal.setgCharset(GLEVEL[collectAndFlag[0]], CHARSETS[collectAndFlag[1]] || DEFAULT_CHARSET);
}
/**
* ESC D
* C1.IND
* DEC mnemonic: IND (https://vt100.net/docs/vt510-rm/IND.html)
* Moves the cursor down one line in the same column.
*/
public index(): void {
this._terminal.index(); // FIXME: save to move the implementation from terminal?
}
/**
* ESC H
* C1.HTS
* DEC mnemonic: HTS (https://vt100.net/docs/vt510-rm/HTS.html)
* Sets a horizontal tab stop at the column position indicated by
* the value of the active column when the terminal receives an HTS.
*/
public tabSet(): void {
this._terminal.tabSet(); // FIXME: save to move the implementation from terminal?
}
/**
* ESC M
* C1.RI
* DEC mnemonic: HTS
* Moves the cursor up one line in the same column. If the cursor is at the top margin,
* the page scrolls down.
*/
public reverseIndex(): void {
this._terminal.reverseIndex(); // FIXME: save to move the implementation from terminal?
}
/**
* ESC c
* DEC mnemonic: RIS (https://vt100.net/docs/vt510-rm/RIS.html)
* Reset to initial state.
*/
public reset(): void {
this._terminal.reset(); // FIXME: save to move the implementation from terminal?
}
/**
* ESC n
* ESC o
* ESC |
* ESC }
* ESC ~
* DEC mnemonic: LS (https://vt100.net/docs/vt510-rm/LS.html)
* When you use a locking shift, the character set remains in GL or GR until
* you use another locking shift. (partly supported)
*/
public setgLevel(level: number): void {
this._terminal.setgLevel(level); // FIXME: save to move the implementation from terminal?
}
}
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