CasperSecurity
/*! 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 object = {};
var hasOwnProperty = object.hasOwnProperty;
var forOwn = function(object, callback) {
var key;
for (key in object) {
if (hasOwnProperty.call(object, key)) {
callback(key, object[key]);
}
}
};
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]);
}
};
var toString = object.toString;
var isArray = function(value) {
return toString.call(value) == '[object Array]';
};
var isObject = function(value) {
// This is a very simple check, but it’s good enough for what we need.
return toString.call(value) == '[object Object]';
};
var isString = function(value) {
return typeof value == 'string' ||
toString.call(value) == '[object String]';
};
var isFunction = function(value) {
// In a perfect world, the `typeof` check would be sufficient. However,
// in Chrome 1–12, `typeof /x/ == 'object'`, and in IE 6–8
// `typeof alert == 'object'` and similar for other host objects.
return typeof value == 'function' ||
toString.call(value) == '[object Function]';
};
/*--------------------------------------------------------------------------*/
// 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 = /[ !#-&\(-\[\]-~]/;
var jsesc = function(argument, options) {
// Handle options
var defaults = {
'escapeEverything': false,
'quotes': 'single',
'wrap': false,
'es6': false,
'json': false,
'compact': true,
'indent': '\t',
'__indent__': ''
};
var json = options && options.json;
if (json) {
defaults.quotes = 'double';
defaults.wrap = true;
}
options = extend(defaults, options);
if (options.quotes != 'single' && options.quotes != 'double') {
options.quotes = 'single';
}
var quote = options.quotes == 'double' ? '"' : '\'';
var compact = options.compact;
var indent = options.indent;
var oldIndent;
var newLine = compact ? '' : '\n';
var result;
var isEmpty = true;
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) + '}';
}
}
var string = argument;
// Loop over each code unit in the string and escape it
var index = -1;
var length = string.length;
var first;
var second;
var codePoint;
result = '';
while (++index < length) {
var character = string.charAt(index);
if (options.es6) {
first = string.charCodeAt(index);
if ( // check if it’s the start of a surrogate pair
first >= 0xD800 && first <= 0xDBFF && // high surrogate
length > index + 1 // there is a next code unit
) {
second = string.charCodeAt(index + 1);
if (second >= 0xDC00 && second <= 0xDFFF) { // low surrogate
// http://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
codePoint = (first - 0xD800) * 0x400 + second - 0xDC00 + 0x10000;
result += '\\u{' + codePoint.toString(16).toUpperCase() + '}';
index++;
continue;
}
}
}
if (!options.escapeEverything) {
if (regexWhitelist.test(character)) {
// It’s a printable ASCII character that is not `"`, `'` or `\`,
// so don’t escape it.
result += character;
continue;
}
if (character == '"') {
result += quote == character ? '\\"' : character;
continue;
}
if (character == '\'') {
result += quote == character ? '\\\'' : character;
continue;
}
}
if (
character == '\0' &&
!json &&
!regexDigit.test(string.charAt(index + 1))
) {
result += '\\0';
continue;
}
if (regexSingleEscape.test(character)) {
// no need for a `hasOwnProperty` check here
result += singleEscapes[character];
continue;
}
var charCode = character.charCodeAt(0);
var hexadecimal = charCode.toString(16).toUpperCase();
var longhand = hexadecimal.length > 2 || json;
var escaped = '\\' + (longhand ? 'u' : 'x') +
('0000' + hexadecimal).slice(longhand ? -4 : -2);
result += escaped;
continue;
}
if (options.wrap) {
result = quote + result + quote;
}
return result;
};
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));