Why Gemfury?
Push, build, and install
RubyGems
npm packages
Python packages
Maven artifacts
PHP packages
Go Modules
Debian packages
RPM packages
NuGet packages
Repository URL to install this package:
|
Version:
1.9.1-1486596246 ▾
|
/**
* @license MIT
*/
import { IInputHandler, ITerminal } from './Interfaces';
import { C0 } from './EscapeSequences';
import { CHARSETS } from './Charsets';
/**
* 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 {
// TODO: We want to type _terminal when it's pulled into TS
constructor(private _terminal: any) { }
public addChar(char: string, code: number): void {
if (char >= ' ') {
// calculate print space
// expensive call, therefore we save width in line buffer
const ch_width = wcwidth(code);
if (this._terminal.charset && this._terminal.charset[char]) {
char = this._terminal.charset[char];
}
let row = this._terminal.y + this._terminal.ybase;
// insert combining char in last cell
// FIXME: needs handling after cursor jumps
if (!ch_width && this._terminal.x) {
// dont overflow left
if (this._terminal.lines.get(row)[this._terminal.x - 1]) {
if (!this._terminal.lines.get(row)[this._terminal.x - 1][2]) {
// found empty cell after fullwidth, need to go 2 cells back
if (this._terminal.lines.get(row)[this._terminal.x - 2])
this._terminal.lines.get(row)[this._terminal.x - 2][1] += char;
} else {
this._terminal.lines.get(row)[this._terminal.x - 1][1] += char;
}
this._terminal.updateRange(this._terminal.y);
}
return;
}
// goto next line if ch would overflow
// TODO: needs a global min terminal width of 2
if (this._terminal.x + ch_width - 1 >= this._terminal.cols) {
// autowrap - DECAWM
if (this._terminal.wraparoundMode) {
this._terminal.x = 0;
this._terminal.y++;
if (this._terminal.y > this._terminal.scrollBottom) {
this._terminal.y--;
this._terminal.scroll();
}
} else {
this._terminal.x = this._terminal.cols - 1;
if (ch_width === 2) // FIXME: check for xterm behavior
return;
}
}
row = this._terminal.y + this._terminal.ybase;
// insert mode: move characters to right
if (this._terminal.insertMode) {
// do this twice for a fullwidth char
for (let moves = 0; moves < ch_width; ++moves) {
// remove last cell, if it's width is 0
// we have to adjust the second last cell as well
const removed = this._terminal.lines.get(this._terminal.y + this._terminal.ybase).pop();
if (removed[2] === 0
&& this._terminal.lines.get(row)[this._terminal.cols - 2]
&& this._terminal.lines.get(row)[this._terminal.cols - 2][2] === 2)
this._terminal.lines.get(row)[this._terminal.cols - 2] = [this._terminal.curAttr, ' ', 1];
// insert empty cell at cursor
this._terminal.lines.get(row).splice(this._terminal.x, 0, [this._terminal.curAttr, ' ', 1]);
}
}
this._terminal.lines.get(row)[this._terminal.x] = [this._terminal.curAttr, char, ch_width];
this._terminal.x++;
this._terminal.updateRange(this._terminal.y);
// fullwidth char - set next cell width to zero and advance cursor
if (ch_width === 2) {
this._terminal.lines.get(row)[this._terminal.x] = [this._terminal.curAttr, '', 0];
this._terminal.x++;
}
}
}
/**
* BEL
* Bell (Ctrl-G).
*/
public bell(): void {
if (!this._terminal.visualBell) {
return;
}
this._terminal.element.style.borderColor = 'white';
setTimeout(() => this._terminal.element.style.borderColor = '', 10);
if (this._terminal.popOnBell) {
this._terminal.focus();
}
}
/**
* LF
* Line Feed or New Line (NL). (LF is Ctrl-J).
*/
public lineFeed(): void {
if (this._terminal.convertEol) {
this._terminal.x = 0;
}
this._terminal.y++;
if (this._terminal.y > this._terminal.scrollBottom) {
this._terminal.y--;
this._terminal.scroll();
}
}
/**
* CR
* Carriage Return (Ctrl-M).
*/
public carriageReturn(): void {
this._terminal.x = 0;
}
/**
* BS
* Backspace (Ctrl-H).
*/
public backspace(): void {
if (this._terminal.x > 0) {
this._terminal.x--;
}
}
/**
* TAB
* Horizontal Tab (HT) (Ctrl-I).
*/
public tab(): void {
this._terminal.x = this._terminal.nextStop();
}
/**
* 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, row, j, ch;
param = params[0];
if (param < 1) param = 1;
row = this._terminal.y + this._terminal.ybase;
j = this._terminal.x;
ch = [this._terminal.eraseAttr(), ' ', 1]; // xterm
while (param-- && j < this._terminal.cols) {
this._terminal.lines.get(row).splice(j++, 0, ch);
this._terminal.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.y -= param;
if (this._terminal.y < 0) {
this._terminal.y = 0;
}
}
/**
* CSI Ps B
* Cursor Down Ps Times (default = 1) (CUD).
*/
public cursorDown(params: number[]) {
let param = params[0];
if (param < 1) {
param = 1;
}
this._terminal.y += param;
if (this._terminal.y >= this._terminal.rows) {
this._terminal.y = this._terminal.rows - 1;
}
}
/**
* CSI Ps C
* Cursor Forward Ps Times (default = 1) (CUF).
*/
public cursorForward(params: number[]) {
let param = params[0];
if (param < 1) {
param = 1;
}
this._terminal.x += param;
if (this._terminal.x >= this._terminal.cols) {
this._terminal.x = this._terminal.cols - 1;
}
}
/**
* CSI Ps D
* Cursor Backward Ps Times (default = 1) (CUB).
*/
public cursorBackward(params: number[]) {
let param = params[0];
if (param < 1) {
param = 1;
}
this._terminal.x -= param;
if (this._terminal.x < 0) {
this._terminal.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.y += param;
if (this._terminal.y >= this._terminal.rows) {
this._terminal.y = this._terminal.rows - 1;
}
this._terminal.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.y -= param;
if (this._terminal.y < 0) {
this._terminal.y = 0;
}
this._terminal.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.x = param - 1;
}
/**
* CSI Ps ; Ps H
* Cursor Position [row;column] (default = [1,1]) (CUP).
*/
public cursorPosition(params: number[]): void {
let row, col;
row = 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.x = col;
this._terminal.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.x = this._terminal.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.x, this._terminal.y);
j = this._terminal.y + 1;
for (; j < this._terminal.rows; j++) {
this._terminal.eraseLine(j);
}
break;
case 1:
this._terminal.eraseLeft(this._terminal.x, this._terminal.y);
j = this._terminal.y;
while (j--) {
this._terminal.eraseLine(j);
}
break;
case 2:
j = this._terminal.rows;
while (j--) this._terminal.eraseLine(j);
break;
case 3:
; // no saved lines
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.x, this._terminal.y);
break;
case 1:
this._terminal.eraseLeft(this._terminal.x, this._terminal.y);
break;
case 2:
this._terminal.eraseLine(this._terminal.y);
break;
}
}
/**
* CSI Ps L
* Insert Ps Line(s) (default = 1) (IL).
*/
public insertLines(params: number[]): void {
let param, row, j;
param = params[0];
if (param < 1) {
param = 1;
}
row = this._terminal.y + this._terminal.ybase;
j = this._terminal.rows - 1 - this._terminal.scrollBottom;
j = this._terminal.rows - 1 + this._terminal.ybase - j + 1;
while (param--) {
if (this._terminal.lines.length === this._terminal.lines.maxLength) {
// Trim the start of lines to make room for the new line
this._terminal.lines.trimStart(1);
this._terminal.ybase--;
this._terminal.ydisp--;
row--;
j--;
}
// test: echo -e '\e[44m\e[1L\e[0m'
// blankLine(true) - xterm/linux behavior
this._terminal.lines.splice(row, 0, this._terminal.blankLine(true));
this._terminal.lines.splice(j, 1);
}
// this.maxRange();
this._terminal.updateRange(this._terminal.y);
this._terminal.updateRange(this._terminal.scrollBottom);
}
/**
* CSI Ps M
* Delete Ps Line(s) (default = 1) (DL).
*/
public deleteLines(params: number[]): void {
let param, row, j;
param = params[0];
if (param < 1) {
param = 1;
}
row = this._terminal.y + this._terminal.ybase;
j = this._terminal.rows - 1 - this._terminal.scrollBottom;
j = this._terminal.rows - 1 + this._terminal.ybase - j;
while (param--) {
if (this._terminal.lines.length === this._terminal.lines.maxLength) {
// Trim the start of lines to make room for the new line
this._terminal.lines.trimStart(1);
this._terminal.ybase -= 1;
this._terminal.ydisp -= 1;
}
// test: echo -e '\e[44m\e[1M\e[0m'
// blankLine(true) - xterm/linux behavior
this._terminal.lines.splice(j + 1, 0, this._terminal.blankLine(true));
this._terminal.lines.splice(row, 1);
}
// this.maxRange();
this._terminal.updateRange(this._terminal.y);
this._terminal.updateRange(this._terminal.scrollBottom);
}
/**
* CSI Ps P
* Delete Ps Character(s) (default = 1) (DCH).
*/
public deleteChars(params: number[]): void {
let param, row, ch;
param = params[0];
if (param < 1) {
param = 1;
}
row = this._terminal.y + this._terminal.ybase;
ch = [this._terminal.eraseAttr(), ' ', 1]; // xterm
while (param--) {
this._terminal.lines.get(row).splice(this._terminal.x, 1);
this._terminal.lines.get(row).push(ch);
}
}
/**
* CSI Ps S Scroll up Ps lines (default = 1) (SU).
*/
public scrollUp(params: number[]): void {
let param = params[0] || 1;
while (param--) {
this._terminal.lines.splice(this._terminal.ybase + this._terminal.scrollTop, 1);
this._terminal.lines.splice(this._terminal.ybase + this._terminal.scrollBottom, 0, this._terminal.blankLine());
}
// this.maxRange();
this._terminal.updateRange(this._terminal.scrollTop);
this._terminal.updateRange(this._terminal.scrollBottom);
}
/**
* CSI Ps T Scroll down Ps lines (default = 1) (SD).
*/
public scrollDown(params: number[]): void {
let param = params[0] || 1;
while (param--) {
this._terminal.lines.splice(this._terminal.ybase + this._terminal.scrollBottom, 1);
this._terminal.lines.splice(this._terminal.ybase + this._terminal.scrollTop, 0, this._terminal.blankLine());
}
// this.maxRange();
this._terminal.updateRange(this._terminal.scrollTop);
this._terminal.updateRange(this._terminal.scrollBottom);
}
/**
* CSI Ps X
* Erase Ps Character(s) (default = 1) (ECH).
*/
public eraseChars(params: number[]): void {
let param, row, j, ch;
param = params[0];
if (param < 1) {
param = 1;
}
row = this._terminal.y + this._terminal.ybase;
j = this._terminal.x;
ch = [this._terminal.eraseAttr(), ' ', 1]; // xterm
while (param-- && j < this._terminal.cols) {
this._terminal.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;
while (param--) {
this._terminal.x = this._terminal.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.x = param - 1;
if (this._terminal.x >= this._terminal.cols) {
this._terminal.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.x += param;
if (this._terminal.x >= this._terminal.cols) {
this._terminal.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
, line = this._terminal.lines.get(this._terminal.ybase + this._terminal.y)
, ch = line[this._terminal.x - 1] || [this._terminal.defAttr, ' ', 1];
while (param--) {
line[this._terminal.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[]): void {
if (params[0] > 0) {
return;
}
if (!this._terminal.prefix) {
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 (this._terminal.prefix === '>') {
// 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.y = param - 1;
if (this._terminal.y >= this._terminal.rows) {
this._terminal.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.y += param;
if (this._terminal.y >= this._terminal.rows) {
this._terminal.y = this._terminal.rows - 1;
}
}
/**
* 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.y = params[0] - 1;
if (this._terminal.y >= this._terminal.rows) {
this._terminal.y = this._terminal.rows - 1;
}
this._terminal.x = params[1] - 1;
if (this._terminal.x >= this._terminal.cols) {
this._terminal.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.tabs[this._terminal.x];
} else if (param === 3) {
this._terminal.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[]): void {
if (params.length > 1) {
for (let i = 0; i < params.length; i++) {
this.setMode([params[i]]);
}
return;
}
if (!this._terminal.prefix) {
switch (params[0]) {
case 4:
this._terminal.insertMode = true;
break;
case 20:
// this._terminal.convertEol = true;
break;
}
} else if (this._terminal.prefix === '?') {
switch (params[0]) {
case 1:
this._terminal.applicationCursor = true;
break;
case 2:
this._terminal.setgCharset(0, CHARSETS.US);
this._terminal.setgCharset(1, CHARSETS.US);
this._terminal.setgCharset(2, CHARSETS.US);
this._terminal.setgCharset(3, CHARSETS.US);
// 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.style.cursor = 'default';
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
// this._terminal.saveCursor();
; // FALL-THROUGH
case 47: // alt screen buffer
case 1047: // alt screen buffer
if (!this._terminal.normal) {
let normal = {
lines: this._terminal.lines,
ybase: this._terminal.ybase,
ydisp: this._terminal.ydisp,
x: this._terminal.x,
y: this._terminal.y,
scrollTop: this._terminal.scrollTop,
scrollBottom: this._terminal.scrollBottom,
tabs: this._terminal.tabs
// XXX save charset(s) here?
// charset: this._terminal.charset,
// glevel: this._terminal.glevel,
// charsets: this._terminal.charsets
};
this._terminal.reset();
this._terminal.viewport.syncScrollArea();
this._terminal.normal = normal;
this._terminal.showCursor();
}
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[]): void {
if (params.length > 1) {
for (let i = 0; i < params.length; i++) {
this.resetMode([params[i]]);
}
return;
}
if (!this._terminal.prefix) {
switch (params[0]) {
case 4:
this._terminal.insertMode = false;
break;
case 20:
// this._terminal.convertEol = false;
break;
}
} else if (this._terminal.prefix === '?') {
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.style.cursor = '';
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
if (this._terminal.normal) {
this._terminal.lines = this._terminal.normal.lines;
this._terminal.ybase = this._terminal.normal.ybase;
this._terminal.ydisp = this._terminal.normal.ydisp;
this._terminal.x = this._terminal.normal.x;
this._terminal.y = this._terminal.normal.y;
this._terminal.scrollTop = this._terminal.normal.scrollTop;
this._terminal.scrollBottom = this._terminal.normal.scrollBottom;
this._terminal.tabs = this._terminal.normal.tabs;
this._terminal.normal = null;
// if (params === 1049) {
// this.x = this.savedX;
// this.y = this.savedY;
// }
this._terminal.queueRefresh(0, this._terminal.rows - 1);
this._terminal.viewport.syncScrollArea();
this._terminal.showCursor();
}
break;
}
}
}
/**
* CSI Pm m Character Attributes (SGR).
* Ps = 0 -> Normal (default).
* Ps = 1 -> Bold.
* 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;
}
let l = params.length
, i = 0
, flags = this._terminal.curAttr >> 18
, fg = (this._terminal.curAttr >> 9) & 0x1ff
, bg = this._terminal.curAttr & 0x1ff
, p;
for (; 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 |= 1;
} else if (p === 4) {
// underlined text
flags |= 2;
} else if (p === 5) {
// blink
flags |= 4;
} else if (p === 7) {
// inverse and positive
// test with: echo -e '\e[31m\e[42mhello\e[7mworld\e[27mhi\e[m'
flags |= 8;
} else if (p === 8) {
// invisible
flags |= 16;
} else if (p === 22) {
// not bold
flags &= ~1;
} else if (p === 24) {
// not underlined
flags &= ~2;
} else if (p === 25) {
// not blink
flags &= ~4;
} else if (p === 27) {
// not inverse
flags &= ~8;
} else if (p === 28) {
// not invisible
flags &= ~16;
} 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[]): void {
if (!this._terminal.prefix) {
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.y + 1)
+ ';'
+ (this._terminal.x + 1)
+ 'R');
break;
}
} else if (this._terminal.prefix === '?') {
// 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.y + 1)
+ ';'
+ (this._terminal.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[]): void {
this._terminal.cursorHidden = false;
this._terminal.insertMode = false;
this._terminal.originMode = false;
this._terminal.wraparoundMode = false; // autowrap
this._terminal.applicationKeypad = false; // ?
this._terminal.viewport.syncScrollArea();
this._terminal.applicationCursor = false;
this._terminal.scrollTop = 0;
this._terminal.scrollBottom = this._terminal.rows - 1;
this._terminal.curAttr = this._terminal.defAttr;
this._terminal.x = this._terminal.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[]): void {
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[]): void {
if (this._terminal.prefix) return;
this._terminal.scrollTop = (params[0] || 1) - 1;
this._terminal.scrollBottom = (params[1] || this._terminal.rows) - 1;
this._terminal.x = 0;
this._terminal.y = 0;
}
/**
* CSI s
* Save cursor (ANSI.SYS).
*/
public saveCursor(params: number[]): void {
this._terminal.savedX = this._terminal.x;
this._terminal.savedY = this._terminal.y;
}
/**
* CSI u
* Restore cursor (ANSI.SYS).
*/
public restoreCursor(params: number[]): void {
this._terminal.x = this._terminal.savedX || 0;
this._terminal.y = this._terminal.savedY || 0;
}
}
const wcwidth = (function(opts) {
// extracted from https://www.cl.cam.ac.uk/%7Emgk25/ucs/wcwidth.c
// combining characters
const COMBINING = [
[0x0300, 0x036F], [0x0483, 0x0486], [0x0488, 0x0489],
[0x0591, 0x05BD], [0x05BF, 0x05BF], [0x05C1, 0x05C2],
[0x05C4, 0x05C5], [0x05C7, 0x05C7], [0x0600, 0x0603],
[0x0610, 0x0615], [0x064B, 0x065E], [0x0670, 0x0670],
[0x06D6, 0x06E4], [0x06E7, 0x06E8], [0x06EA, 0x06ED],
[0x070F, 0x070F], [0x0711, 0x0711], [0x0730, 0x074A],
[0x07A6, 0x07B0], [0x07EB, 0x07F3], [0x0901, 0x0902],
[0x093C, 0x093C], [0x0941, 0x0948], [0x094D, 0x094D],
[0x0951, 0x0954], [0x0962, 0x0963], [0x0981, 0x0981],
[0x09BC, 0x09BC], [0x09C1, 0x09C4], [0x09CD, 0x09CD],
[0x09E2, 0x09E3], [0x0A01, 0x0A02], [0x0A3C, 0x0A3C],
[0x0A41, 0x0A42], [0x0A47, 0x0A48], [0x0A4B, 0x0A4D],
[0x0A70, 0x0A71], [0x0A81, 0x0A82], [0x0ABC, 0x0ABC],
[0x0AC1, 0x0AC5], [0x0AC7, 0x0AC8], [0x0ACD, 0x0ACD],
[0x0AE2, 0x0AE3], [0x0B01, 0x0B01], [0x0B3C, 0x0B3C],
[0x0B3F, 0x0B3F], [0x0B41, 0x0B43], [0x0B4D, 0x0B4D],
[0x0B56, 0x0B56], [0x0B82, 0x0B82], [0x0BC0, 0x0BC0],
[0x0BCD, 0x0BCD], [0x0C3E, 0x0C40], [0x0C46, 0x0C48],
[0x0C4A, 0x0C4D], [0x0C55, 0x0C56], [0x0CBC, 0x0CBC],
[0x0CBF, 0x0CBF], [0x0CC6, 0x0CC6], [0x0CCC, 0x0CCD],
[0x0CE2, 0x0CE3], [0x0D41, 0x0D43], [0x0D4D, 0x0D4D],
[0x0DCA, 0x0DCA], [0x0DD2, 0x0DD4], [0x0DD6, 0x0DD6],
[0x0E31, 0x0E31], [0x0E34, 0x0E3A], [0x0E47, 0x0E4E],
[0x0EB1, 0x0EB1], [0x0EB4, 0x0EB9], [0x0EBB, 0x0EBC],
[0x0EC8, 0x0ECD], [0x0F18, 0x0F19], [0x0F35, 0x0F35],
[0x0F37, 0x0F37], [0x0F39, 0x0F39], [0x0F71, 0x0F7E],
[0x0F80, 0x0F84], [0x0F86, 0x0F87], [0x0F90, 0x0F97],
[0x0F99, 0x0FBC], [0x0FC6, 0x0FC6], [0x102D, 0x1030],
[0x1032, 0x1032], [0x1036, 0x1037], [0x1039, 0x1039],
[0x1058, 0x1059], [0x1160, 0x11FF], [0x135F, 0x135F],
[0x1712, 0x1714], [0x1732, 0x1734], [0x1752, 0x1753],
[0x1772, 0x1773], [0x17B4, 0x17B5], [0x17B7, 0x17BD],
[0x17C6, 0x17C6], [0x17C9, 0x17D3], [0x17DD, 0x17DD],
[0x180B, 0x180D], [0x18A9, 0x18A9], [0x1920, 0x1922],
[0x1927, 0x1928], [0x1932, 0x1932], [0x1939, 0x193B],
[0x1A17, 0x1A18], [0x1B00, 0x1B03], [0x1B34, 0x1B34],
[0x1B36, 0x1B3A], [0x1B3C, 0x1B3C], [0x1B42, 0x1B42],
[0x1B6B, 0x1B73], [0x1DC0, 0x1DCA], [0x1DFE, 0x1DFF],
[0x200B, 0x200F], [0x202A, 0x202E], [0x2060, 0x2063],
[0x206A, 0x206F], [0x20D0, 0x20EF], [0x302A, 0x302F],
[0x3099, 0x309A], [0xA806, 0xA806], [0xA80B, 0xA80B],
[0xA825, 0xA826], [0xFB1E, 0xFB1E], [0xFE00, 0xFE0F],
[0xFE20, 0xFE23], [0xFEFF, 0xFEFF], [0xFFF9, 0xFFFB],
[0x10A01, 0x10A03], [0x10A05, 0x10A06], [0x10A0C, 0x10A0F],
[0x10A38, 0x10A3A], [0x10A3F, 0x10A3F], [0x1D167, 0x1D169],
[0x1D173, 0x1D182], [0x1D185, 0x1D18B], [0x1D1AA, 0x1D1AD],
[0x1D242, 0x1D244], [0xE0001, 0xE0001], [0xE0020, 0xE007F],
[0xE0100, 0xE01EF]
];
// binary search
function bisearch(ucs) {
let min = 0;
let max = COMBINING.length - 1;
let mid;
if (ucs < COMBINING[0][0] || ucs > COMBINING[max][1])
return false;
while (max >= min) {
mid = Math.floor((min + max) / 2);
if (ucs > COMBINING[mid][1])
min = mid + 1;
else if (ucs < COMBINING[mid][0])
max = mid - 1;
else
return true;
}
return false;
}
function wcwidth(ucs) {
// test for 8-bit control characters
if (ucs === 0)
return opts.nul;
if (ucs < 32 || (ucs >= 0x7f && ucs < 0xa0))
return opts.control;
// binary search in table of non-spacing characters
if (bisearch(ucs))
return 0;
// if we arrive here, ucs is not a combining or C0/C1 control character
if (isWide(ucs)) {
return 2;
}
return 1;
}
function isWide(ucs) {
return (
ucs >= 0x1100 && (
ucs <= 0x115f || // Hangul Jamo init. consonants
ucs === 0x2329 ||
ucs === 0x232a ||
(ucs >= 0x2e80 && ucs <= 0xa4cf && ucs !== 0x303f) || // CJK..Yi
(ucs >= 0xac00 && ucs <= 0xd7a3) || // Hangul Syllables
(ucs >= 0xf900 && ucs <= 0xfaff) || // CJK Compat Ideographs
(ucs >= 0xfe10 && ucs <= 0xfe19) || // Vertical forms
(ucs >= 0xfe30 && ucs <= 0xfe6f) || // CJK Compat Forms
(ucs >= 0xff00 && ucs <= 0xff60) || // Fullwidth Forms
(ucs >= 0xffe0 && ucs <= 0xffe6) ||
(ucs >= 0x20000 && ucs <= 0x2fffd) ||
(ucs >= 0x30000 && ucs <= 0x3fffd)));
}
return wcwidth;
})({nul: 0, control: 0}); // configurable options