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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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 | 
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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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 | 
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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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 | 
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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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 | 
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	return ESC + (y + 1) + ';' + (x + 1) + 'H'; | 
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}; | 
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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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 | 
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	let ret = ''; | 
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 | 
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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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 | 
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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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 | 
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	return ret; | 
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}; | 
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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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 | 
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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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 | 
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ansiEscapes.eraseLines = count => { | 
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	let clear = ''; | 
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 | 
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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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 | 
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	if (count) { | 
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		clear += ansiEscapes.cursorLeft; | 
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	} | 
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 | 
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	return clear; | 
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}; | 
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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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 | 
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ansiEscapes.clearScreen = '\u001Bc'; | 
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 | 
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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${ESC}H`; | 
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 | 
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ansiEscapes.beep = BEL; | 
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 | 
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ansiEscapes.link = (text, url) => { | 
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	return [ | 
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		OSC, | 
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		'8', | 
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		SEP, | 
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		SEP, | 
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		url, | 
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		BEL, | 
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		text, | 
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		OSC, | 
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		'8', | 
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		SEP, | 
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		SEP, | 
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		BEL | 
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	].join(''); | 
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}; | 
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 | 
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ansiEscapes.image = (buffer, options = {}) => { | 
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	let ret = `${OSC}1337;File=inline=1`; | 
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 | 
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	if (options.width) { | 
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		ret += `;width=${options.width}`; | 
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	} | 
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 | 
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	if (options.height) { | 
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		ret += `;height=${options.height}`; | 
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	} | 
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 | 
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	if (options.preserveAspectRatio === false) { | 
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		ret += ';preserveAspectRatio=0'; | 
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	} | 
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 | 
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	return ret + ':' + buffer.toString('base64') + BEL; | 
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}; | 
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 | 
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ansiEscapes.iTerm = { | 
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	setCwd: (cwd = process.cwd()) => `${OSC}50;CurrentDir=${cwd}${BEL}`, | 
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 | 
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	annotation: (message, options = {}) => { | 
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		let ret = `${OSC}1337;`; | 
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 | 
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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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 | 
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		message = message.replace(/\|/g, ''); | 
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 | 
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		ret += options.isHidden ? 'AddHiddenAnnotation=' : 'AddAnnotation='; | 
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 | 
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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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 | 
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		return ret + BEL; | 
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	} | 
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};
 | 
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 |