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157 lines
3.7 KiB
157 lines
3.7 KiB
'use strict'; |
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const ansiEscapes = module.exports; |
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// TODO: remove this in the next major version |
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module.exports.default = ansiEscapes; |
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const ESC = '\u001B['; |
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const OSC = '\u001B]'; |
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const BEL = '\u0007'; |
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const SEP = ';'; |
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const isTerminalApp = process.env.TERM_PROGRAM === 'Apple_Terminal'; |
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ansiEscapes.cursorTo = (x, y) => { |
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if (typeof x !== 'number') { |
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throw new TypeError('The `x` argument is required'); |
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} |
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if (typeof y !== 'number') { |
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return ESC + (x + 1) + 'G'; |
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} |
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return ESC + (y + 1) + ';' + (x + 1) + 'H'; |
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}; |
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ansiEscapes.cursorMove = (x, y) => { |
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if (typeof x !== 'number') { |
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throw new TypeError('The `x` argument is required'); |
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} |
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let ret = ''; |
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if (x < 0) { |
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ret += ESC + (-x) + 'D'; |
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} else if (x > 0) { |
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ret += ESC + x + 'C'; |
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} |
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if (y < 0) { |
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ret += ESC + (-y) + 'A'; |
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} else if (y > 0) { |
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ret += ESC + y + 'B'; |
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} |
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return ret; |
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}; |
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ansiEscapes.cursorUp = (count = 1) => ESC + count + 'A'; |
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ansiEscapes.cursorDown = (count = 1) => ESC + count + 'B'; |
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ansiEscapes.cursorForward = (count = 1) => ESC + count + 'C'; |
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ansiEscapes.cursorBackward = (count = 1) => ESC + count + 'D'; |
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ansiEscapes.cursorLeft = ESC + 'G'; |
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ansiEscapes.cursorSavePosition = isTerminalApp ? '\u001B7' : ESC + 's'; |
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ansiEscapes.cursorRestorePosition = isTerminalApp ? '\u001B8' : ESC + 'u'; |
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ansiEscapes.cursorGetPosition = ESC + '6n'; |
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ansiEscapes.cursorNextLine = ESC + 'E'; |
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ansiEscapes.cursorPrevLine = ESC + 'F'; |
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ansiEscapes.cursorHide = ESC + '?25l'; |
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ansiEscapes.cursorShow = ESC + '?25h'; |
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ansiEscapes.eraseLines = count => { |
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let clear = ''; |
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for (let i = 0; i < count; i++) { |
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clear += ansiEscapes.eraseLine + (i < count - 1 ? ansiEscapes.cursorUp() : ''); |
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} |
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if (count) { |
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clear += ansiEscapes.cursorLeft; |
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} |
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return clear; |
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}; |
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ansiEscapes.eraseEndLine = ESC + 'K'; |
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ansiEscapes.eraseStartLine = ESC + '1K'; |
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ansiEscapes.eraseLine = ESC + '2K'; |
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ansiEscapes.eraseDown = ESC + 'J'; |
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ansiEscapes.eraseUp = ESC + '1J'; |
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ansiEscapes.eraseScreen = ESC + '2J'; |
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ansiEscapes.scrollUp = ESC + 'S'; |
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ansiEscapes.scrollDown = ESC + 'T'; |
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ansiEscapes.clearScreen = '\u001Bc'; |
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ansiEscapes.clearTerminal = process.platform === 'win32' ? |
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`${ansiEscapes.eraseScreen}${ESC}0f` : |
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// 1. Erases the screen (Only done in case `2` is not supported) |
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// 2. Erases the whole screen including scrollback buffer |
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// 3. Moves cursor to the top-left position |
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// More info: https://www.real-world-systems.com/docs/ANSIcode.html |
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`${ansiEscapes.eraseScreen}${ESC}3J${ESC}H`; |
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ansiEscapes.beep = BEL; |
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ansiEscapes.link = (text, url) => { |
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return [ |
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OSC, |
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'8', |
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SEP, |
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SEP, |
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url, |
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BEL, |
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text, |
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OSC, |
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'8', |
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SEP, |
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SEP, |
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BEL |
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].join(''); |
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}; |
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ansiEscapes.image = (buffer, options = {}) => { |
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let ret = `${OSC}1337;File=inline=1`; |
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if (options.width) { |
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ret += `;width=${options.width}`; |
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} |
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if (options.height) { |
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ret += `;height=${options.height}`; |
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} |
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if (options.preserveAspectRatio === false) { |
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ret += ';preserveAspectRatio=0'; |
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} |
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return ret + ':' + buffer.toString('base64') + BEL; |
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}; |
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ansiEscapes.iTerm = { |
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setCwd: (cwd = process.cwd()) => `${OSC}50;CurrentDir=${cwd}${BEL}`, |
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annotation: (message, options = {}) => { |
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let ret = `${OSC}1337;`; |
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const hasX = typeof options.x !== 'undefined'; |
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const hasY = typeof options.y !== 'undefined'; |
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if ((hasX || hasY) && !(hasX && hasY && typeof options.length !== 'undefined')) { |
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throw new Error('`x`, `y` and `length` must be defined when `x` or `y` is defined'); |
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} |
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message = message.replace(/\|/g, ''); |
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ret += options.isHidden ? 'AddHiddenAnnotation=' : 'AddAnnotation='; |
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if (options.length > 0) { |
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ret += |
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(hasX ? |
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[message, options.length, options.x, options.y] : |
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[options.length, message]).join('|'); |
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} else { |
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ret += message; |
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} |
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return ret + BEL; |
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} |
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};
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