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- 'use strict';
- const x = module.exports;
- const ESC = '\u001B[';
- const OSC = '\u001B]';
- const BEL = '\u0007';
- const SEP = ';';
- const isTerminalApp = process.env.TERM_PROGRAM === 'Apple_Terminal';
- x.cursorTo = (x, y) => {
- if (typeof x !== 'number') {
- throw new TypeError('The `x` argument is required');
- }
- if (typeof y !== 'number') {
- return ESC + (x + 1) + 'G';
- }
- return ESC + (y + 1) + ';' + (x + 1) + 'H';
- };
- x.cursorMove = (x, y) => {
- if (typeof x !== 'number') {
- throw new TypeError('The `x` argument is required');
- }
- let ret = '';
- if (x < 0) {
- ret += ESC + (-x) + 'D';
- } else if (x > 0) {
- ret += ESC + x + 'C';
- }
- if (y < 0) {
- ret += ESC + (-y) + 'A';
- } else if (y > 0) {
- ret += ESC + y + 'B';
- }
- return ret;
- };
- x.cursorUp = count => ESC + (typeof count === 'number' ? count : 1) + 'A';
- x.cursorDown = count => ESC + (typeof count === 'number' ? count : 1) + 'B';
- x.cursorForward = count => ESC + (typeof count === 'number' ? count : 1) + 'C';
- x.cursorBackward = count => ESC + (typeof count === 'number' ? count : 1) + 'D';
- x.cursorLeft = ESC + 'G';
- x.cursorSavePosition = ESC + (isTerminalApp ? '7' : 's');
- x.cursorRestorePosition = ESC + (isTerminalApp ? '8' : 'u');
- x.cursorGetPosition = ESC + '6n';
- x.cursorNextLine = ESC + 'E';
- x.cursorPrevLine = ESC + 'F';
- x.cursorHide = ESC + '?25l';
- x.cursorShow = ESC + '?25h';
- x.eraseLines = count => {
- let clear = '';
- for (let i = 0; i < count; i++) {
- clear += x.eraseLine + (i < count - 1 ? x.cursorUp() : '');
- }
- if (count) {
- clear += x.cursorLeft;
- }
- return clear;
- };
- x.eraseEndLine = ESC + 'K';
- x.eraseStartLine = ESC + '1K';
- x.eraseLine = ESC + '2K';
- x.eraseDown = ESC + 'J';
- x.eraseUp = ESC + '1J';
- x.eraseScreen = ESC + '2J';
- x.scrollUp = ESC + 'S';
- x.scrollDown = ESC + 'T';
- x.clearScreen = '\u001Bc';
- x.beep = BEL;
- x.link = (text, url) => {
- return [
- OSC,
- '8',
- SEP,
- SEP,
- url,
- BEL,
- text,
- OSC,
- '8',
- SEP,
- SEP,
- BEL
- ].join('');
- };
- x.image = (buf, opts) => {
- opts = opts || {};
- let ret = OSC + '1337;File=inline=1';
- if (opts.width) {
- ret += `;width=${opts.width}`;
- }
- if (opts.height) {
- ret += `;height=${opts.height}`;
- }
- if (opts.preserveAspectRatio === false) {
- ret += ';preserveAspectRatio=0';
- }
- return ret + ':' + buf.toString('base64') + BEL;
- };
- x.iTerm = {};
- x.iTerm.setCwd = cwd => OSC + '50;CurrentDir=' + (cwd || process.cwd()) + BEL;
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