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/home/yanggyein/yanggyein/yang_home/node_modules/jsesc/jsesc.js

'use strict';

const extend = (destination, source) => {
	if (!source) {
		return destination;
	}
	forOwn(source, (key, value) => {
		destination[key] = value;
	});
	return destination;
};

const forEach = (array, callback) => {
	const length = array.length;
	let index = -1;
	while (++index < length) {
		callback(array[index]);
	}
};

/*--------------------------------------------------------------------------*/

// https://mathiasbynens.be/notes/javascript-escapes#single
const singleEscapes = {
	'"': '\\"',
	'\'': '\\\'',
	'\\': '\\\\',
	'\b': '\\b',
	'\f': '\\f',
	'\n': '\\n',
	'\r': '\\r',
	'\t': '\\t'
	// `\v` is omitted intentionally, because in IE < 9, '\v' == 'v'.
	// '\v': '\\x0B'
};
const regexSingleEscape = /["'\\\b\f\n\r\t]/;

const regexDigit = /[0-9]/;
const regexWhitelist = /[ !#-&\(-\[\]-_a-~]/;

if (json && argument && isFunction(argument.toJSON)) {
		argument = argument.toJSON();
	}

if (!isString(argument)) {
		if (isMap(argument)) {
			if (argument.size == 0) {
				return 'new Map()';
			}
			if (!compact) {
				options.__inline1__ = true;
				options.__inline2__ = false;
			}
			return 'new Map(' + jsesc(Array.from(argument), options) + ')';
		}
		if (isSet(argument)) {
			if (argument.size == 0) {
				return 'new Set()';
			}
			return 'new Set(' + jsesc(Array.from(argument), options) + ')';
		}
		if (isBuffer(argument)) {
			if (argument.length == 0) {
				return 'Buffer.from([])';
			}
			return 'Buffer.from(' + jsesc(Array.from(argument), options) + ')';
		}
		if (isArray(argument)) {
			result = [];
			options.wrap = true;
			if (inline1) {
				options.__inline1__ = false;
				options.__inline2__ = true;
			}
			if (!inline2) {
				increaseIndentation();
			}
			forEach(argument, (value) => {
				isEmpty = false;
				if (inline2) {
					options.__inline2__ = false;
				}
				result.push(
					(compact || inline2 ? '' : indent) +
					jsesc(value, options)
				);
			});
			if (isEmpty) {
				return '[]';
			}
			if (inline2) {
				return '[' + result.join(', ') + ']';
			}
			return '[' + newLine + result.join(',' + newLine) + newLine +
				(compact ? '' : oldIndent) + ']';
		} else if (isNumber(argument)) {
			if (json) {
				// Some number values (e.g. `Infinity`) cannot be represented in JSON.
				return JSON.stringify(argument);
			}
			if (useDecNumbers) {
				return String(argument);
			}
			if (useHexNumbers) {
				let hexadecimal = argument.toString(16);
				if (!lowercaseHex) {
					hexadecimal = hexadecimal.toUpperCase();
				}
				return '0x' + hexadecimal;
			}
			if (useBinNumbers) {
				return '0b' + argument.toString(2);
			}
			if (useOctNumbers) {
				return '0o' + argument.toString(8);
			}
		} else if (!isObject(argument)) {
			if (json) {
				// For some values (e.g. `undefined`, `function` objects),
				// `JSON.stringify(value)` returns `undefined` (which isn’t valid
				// JSON) instead of `'null'`.
				return JSON.stringify(argument) || 'null';
			}
			return String(argument);
		} else { // it’s an object
			result = [];
			options.wrap = true;
			increaseIndentation();
			forOwn(argument, (key, value) => {
				isEmpty = false;
				result.push(
					(compact ? '' : indent) +
					jsesc(key, options) + ':' +
					(compact ? '' : ' ') +
					jsesc(value, options)
				);
			});
			if (isEmpty) {
				return '{}';
			}
			return '{' + newLine + result.join(',' + newLine) + newLine +
				(compact ? '' : oldIndent) + '}';
		}
	}

jsesc.version = '2.5.2';

module.exports = jsesc;