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Edit File: jsesc.js

/*! http://mths.be/jsesc v0.5.0 by @mathias */
;(function(root) {

// Detect free variables `exports`
	var freeExports = typeof exports == 'object' && exports;

// Detect free variable `module`
	var freeModule = typeof module == 'object' && module &&
		module.exports == freeExports && module;

// Detect free variable `global`, from Node.js or Browserified code,
	// and use it as `root`
	var freeGlobal = typeof global == 'object' && global;
	if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
		root = freeGlobal;
	}

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

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

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

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

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

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

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

if (!isString(argument)) {
			if (isArray(argument)) {
				result = [];
				options.wrap = true;
				oldIndent = options.__indent__;
				indent += oldIndent;
				options.__indent__ = indent;
				forEach(argument, function(value) {
					isEmpty = false;
					result.push(
						(compact ? '' : indent) +
						jsesc(value, options)
					);
				});
				if (isEmpty) {
					return '[]';
				}
				return '[' + newLine + result.join(',' + newLine) + newLine +
					(compact ? '' : oldIndent) + ']';
			} 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;
				oldIndent = options.__indent__;
				indent += oldIndent;
				options.__indent__ = indent;
				forOwn(argument, function(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 = '0.5.0';

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

// Some AMD build optimizers, like r.js, check for specific condition patterns
	// like the following:
	if (
		typeof define == 'function' &&
		typeof define.amd == 'object' &&
		define.amd
	) {
		define(function() {
			return jsesc;
		});
	}	else if (freeExports && !freeExports.nodeType) {
		if (freeModule) { // in Node.js or RingoJS v0.8.0+
			freeModule.exports = jsesc;
		} else { // in Narwhal or RingoJS v0.7.0-
			freeExports.jsesc = jsesc;
		}
	} else { // in Rhino or a web browser
		root.jsesc = jsesc;
	}

}(this));

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