903 lines
42 KiB
JavaScript
903 lines
42 KiB
JavaScript
/*! JSON v3.3.1 | http://bestiejs.github.io/json3 | Copyright 2012-2014, Kit Cambridge | http://kit.mit-license.org */
|
|
;(function () {
|
|
// Detect the `define` function exposed by asynchronous module loaders. The
|
|
// strict `define` check is necessary for compatibility with `r.js`.
|
|
var isLoader = typeof define === "function" && define.amd;
|
|
|
|
// A set of types used to distinguish objects from primitives.
|
|
var objectTypes = {
|
|
"function": true,
|
|
"object": true
|
|
};
|
|
|
|
// Detect the `exports` object exposed by CommonJS implementations.
|
|
var freeExports = objectTypes[typeof exports] && exports && !exports.nodeType && exports;
|
|
|
|
// Use the `global` object exposed by Node (including Browserify via
|
|
// `insert-module-globals`), Narwhal, and Ringo as the default context,
|
|
// and the `window` object in browsers. Rhino exports a `global` function
|
|
// instead.
|
|
var root = objectTypes[typeof window] && window || this,
|
|
freeGlobal = freeExports && objectTypes[typeof module] && module && !module.nodeType && typeof global == "object" && global;
|
|
|
|
if (freeGlobal && (freeGlobal["global"] === freeGlobal || freeGlobal["window"] === freeGlobal || freeGlobal["self"] === freeGlobal)) {
|
|
root = freeGlobal;
|
|
}
|
|
|
|
// Public: Initializes JSON 3 using the given `context` object, attaching the
|
|
// `stringify` and `parse` functions to the specified `exports` object.
|
|
function runInContext(context, exports) {
|
|
context || (context = root["Object"]());
|
|
exports || (exports = root["Object"]());
|
|
|
|
// Native constructor aliases.
|
|
var Number = context["Number"] || root["Number"],
|
|
String = context["String"] || root["String"],
|
|
Object = context["Object"] || root["Object"],
|
|
Date = context["Date"] || root["Date"],
|
|
SyntaxError = context["SyntaxError"] || root["SyntaxError"],
|
|
TypeError = context["TypeError"] || root["TypeError"],
|
|
Math = context["Math"] || root["Math"],
|
|
nativeJSON = context["JSON"] || root["JSON"];
|
|
|
|
// Delegate to the native `stringify` and `parse` implementations.
|
|
if (typeof nativeJSON == "object" && nativeJSON) {
|
|
exports.stringify = nativeJSON.stringify;
|
|
exports.parse = nativeJSON.parse;
|
|
}
|
|
|
|
// Convenience aliases.
|
|
var objectProto = Object.prototype,
|
|
getClass = objectProto.toString,
|
|
isProperty, forEach, undef;
|
|
|
|
// Test the `Date#getUTC*` methods. Based on work by @Yaffle.
|
|
var isExtended = new Date(-3509827334573292);
|
|
try {
|
|
// The `getUTCFullYear`, `Month`, and `Date` methods return nonsensical
|
|
// results for certain dates in Opera >= 10.53.
|
|
isExtended = isExtended.getUTCFullYear() == -109252 && isExtended.getUTCMonth() === 0 && isExtended.getUTCDate() === 1 &&
|
|
// Safari < 2.0.2 stores the internal millisecond time value correctly,
|
|
// but clips the values returned by the date methods to the range of
|
|
// signed 32-bit integers ([-2 ** 31, 2 ** 31 - 1]).
|
|
isExtended.getUTCHours() == 10 && isExtended.getUTCMinutes() == 37 && isExtended.getUTCSeconds() == 6 && isExtended.getUTCMilliseconds() == 708;
|
|
} catch (exception) {}
|
|
|
|
// Internal: Determines whether the native `JSON.stringify` and `parse`
|
|
// implementations are spec-compliant. Based on work by Ken Snyder.
|
|
function has(name) {
|
|
if (has[name] !== undef) {
|
|
// Return cached feature test result.
|
|
return has[name];
|
|
}
|
|
var isSupported;
|
|
if (name == "bug-string-char-index") {
|
|
// IE <= 7 doesn't support accessing string characters using square
|
|
// bracket notation. IE 8 only supports this for primitives.
|
|
isSupported = "a"[0] != "a";
|
|
} else if (name == "json") {
|
|
// Indicates whether both `JSON.stringify` and `JSON.parse` are
|
|
// supported.
|
|
isSupported = has("json-stringify") && has("json-parse");
|
|
} else {
|
|
var value, serialized = '{"a":[1,true,false,null,"\\u0000\\b\\n\\f\\r\\t"]}';
|
|
// Test `JSON.stringify`.
|
|
if (name == "json-stringify") {
|
|
var stringify = exports.stringify, stringifySupported = typeof stringify == "function" && isExtended;
|
|
if (stringifySupported) {
|
|
// A test function object with a custom `toJSON` method.
|
|
(value = function () {
|
|
return 1;
|
|
}).toJSON = value;
|
|
try {
|
|
stringifySupported =
|
|
// Firefox 3.1b1 and b2 serialize string, number, and boolean
|
|
// primitives as object literals.
|
|
stringify(0) === "0" &&
|
|
// FF 3.1b1, b2, and JSON 2 serialize wrapped primitives as object
|
|
// literals.
|
|
stringify(new Number()) === "0" &&
|
|
stringify(new String()) == '""' &&
|
|
// FF 3.1b1, 2 throw an error if the value is `null`, `undefined`, or
|
|
// does not define a canonical JSON representation (this applies to
|
|
// objects with `toJSON` properties as well, *unless* they are nested
|
|
// within an object or array).
|
|
stringify(getClass) === undef &&
|
|
// IE 8 serializes `undefined` as `"undefined"`. Safari <= 5.1.7 and
|
|
// FF 3.1b3 pass this test.
|
|
stringify(undef) === undef &&
|
|
// Safari <= 5.1.7 and FF 3.1b3 throw `Error`s and `TypeError`s,
|
|
// respectively, if the value is omitted entirely.
|
|
stringify() === undef &&
|
|
// FF 3.1b1, 2 throw an error if the given value is not a number,
|
|
// string, array, object, Boolean, or `null` literal. This applies to
|
|
// objects with custom `toJSON` methods as well, unless they are nested
|
|
// inside object or array literals. YUI 3.0.0b1 ignores custom `toJSON`
|
|
// methods entirely.
|
|
stringify(value) === "1" &&
|
|
stringify([value]) == "[1]" &&
|
|
// Prototype <= 1.6.1 serializes `[undefined]` as `"[]"` instead of
|
|
// `"[null]"`.
|
|
stringify([undef]) == "[null]" &&
|
|
// YUI 3.0.0b1 fails to serialize `null` literals.
|
|
stringify(null) == "null" &&
|
|
// FF 3.1b1, 2 halts serialization if an array contains a function:
|
|
// `[1, true, getClass, 1]` serializes as "[1,true,],". FF 3.1b3
|
|
// elides non-JSON values from objects and arrays, unless they
|
|
// define custom `toJSON` methods.
|
|
stringify([undef, getClass, null]) == "[null,null,null]" &&
|
|
// Simple serialization test. FF 3.1b1 uses Unicode escape sequences
|
|
// where character escape codes are expected (e.g., `\b` => `\u0008`).
|
|
stringify({ "a": [value, true, false, null, "\x00\b\n\f\r\t"] }) == serialized &&
|
|
// FF 3.1b1 and b2 ignore the `filter` and `width` arguments.
|
|
stringify(null, value) === "1" &&
|
|
stringify([1, 2], null, 1) == "[\n 1,\n 2\n]" &&
|
|
// JSON 2, Prototype <= 1.7, and older WebKit builds incorrectly
|
|
// serialize extended years.
|
|
stringify(new Date(-8.64e15)) == '"-271821-04-20T00:00:00.000Z"' &&
|
|
// The milliseconds are optional in ES 5, but required in 5.1.
|
|
stringify(new Date(8.64e15)) == '"+275760-09-13T00:00:00.000Z"' &&
|
|
// Firefox <= 11.0 incorrectly serializes years prior to 0 as negative
|
|
// four-digit years instead of six-digit years. Credits: @Yaffle.
|
|
stringify(new Date(-621987552e5)) == '"-000001-01-01T00:00:00.000Z"' &&
|
|
// Safari <= 5.1.5 and Opera >= 10.53 incorrectly serialize millisecond
|
|
// values less than 1000. Credits: @Yaffle.
|
|
stringify(new Date(-1)) == '"1969-12-31T23:59:59.999Z"';
|
|
} catch (exception) {
|
|
stringifySupported = false;
|
|
}
|
|
}
|
|
isSupported = stringifySupported;
|
|
}
|
|
// Test `JSON.parse`.
|
|
if (name == "json-parse") {
|
|
var parse = exports.parse;
|
|
if (typeof parse == "function") {
|
|
try {
|
|
// FF 3.1b1, b2 will throw an exception if a bare literal is provided.
|
|
// Conforming implementations should also coerce the initial argument to
|
|
// a string prior to parsing.
|
|
if (parse("0") === 0 && !parse(false)) {
|
|
// Simple parsing test.
|
|
value = parse(serialized);
|
|
var parseSupported = value["a"].length == 5 && value["a"][0] === 1;
|
|
if (parseSupported) {
|
|
try {
|
|
// Safari <= 5.1.2 and FF 3.1b1 allow unescaped tabs in strings.
|
|
parseSupported = !parse('"\t"');
|
|
} catch (exception) {}
|
|
if (parseSupported) {
|
|
try {
|
|
// FF 4.0 and 4.0.1 allow leading `+` signs and leading
|
|
// decimal points. FF 4.0, 4.0.1, and IE 9-10 also allow
|
|
// certain octal literals.
|
|
parseSupported = parse("01") !== 1;
|
|
} catch (exception) {}
|
|
}
|
|
if (parseSupported) {
|
|
try {
|
|
// FF 4.0, 4.0.1, and Rhino 1.7R3-R4 allow trailing decimal
|
|
// points. These environments, along with FF 3.1b1 and 2,
|
|
// also allow trailing commas in JSON objects and arrays.
|
|
parseSupported = parse("1.") !== 1;
|
|
} catch (exception) {}
|
|
}
|
|
}
|
|
}
|
|
} catch (exception) {
|
|
parseSupported = false;
|
|
}
|
|
}
|
|
isSupported = parseSupported;
|
|
}
|
|
}
|
|
return has[name] = !!isSupported;
|
|
}
|
|
|
|
if (!has("json")) {
|
|
// Common `[[Class]]` name aliases.
|
|
var functionClass = "[object Function]",
|
|
dateClass = "[object Date]",
|
|
numberClass = "[object Number]",
|
|
stringClass = "[object String]",
|
|
arrayClass = "[object Array]",
|
|
booleanClass = "[object Boolean]";
|
|
|
|
// Detect incomplete support for accessing string characters by index.
|
|
var charIndexBuggy = has("bug-string-char-index");
|
|
|
|
// Define additional utility methods if the `Date` methods are buggy.
|
|
if (!isExtended) {
|
|
var floor = Math.floor;
|
|
// A mapping between the months of the year and the number of days between
|
|
// January 1st and the first of the respective month.
|
|
var Months = [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334];
|
|
// Internal: Calculates the number of days between the Unix epoch and the
|
|
// first day of the given month.
|
|
var getDay = function (year, month) {
|
|
return Months[month] + 365 * (year - 1970) + floor((year - 1969 + (month = +(month > 1))) / 4) - floor((year - 1901 + month) / 100) + floor((year - 1601 + month) / 400);
|
|
};
|
|
}
|
|
|
|
// Internal: Determines if a property is a direct property of the given
|
|
// object. Delegates to the native `Object#hasOwnProperty` method.
|
|
if (!(isProperty = objectProto.hasOwnProperty)) {
|
|
isProperty = function (property) {
|
|
var members = {}, constructor;
|
|
if ((members.__proto__ = null, members.__proto__ = {
|
|
// The *proto* property cannot be set multiple times in recent
|
|
// versions of Firefox and SeaMonkey.
|
|
"toString": 1
|
|
}, members).toString != getClass) {
|
|
// Safari <= 2.0.3 doesn't implement `Object#hasOwnProperty`, but
|
|
// supports the mutable *proto* property.
|
|
isProperty = function (property) {
|
|
// Capture and break the objectgs prototype chain (see section 8.6.2
|
|
// of the ES 5.1 spec). The parenthesized expression prevents an
|
|
// unsafe transformation by the Closure Compiler.
|
|
var original = this.__proto__, result = property in (this.__proto__ = null, this);
|
|
// Restore the original prototype chain.
|
|
this.__proto__ = original;
|
|
return result;
|
|
};
|
|
} else {
|
|
// Capture a reference to the top-level `Object` constructor.
|
|
constructor = members.constructor;
|
|
// Use the `constructor` property to simulate `Object#hasOwnProperty` in
|
|
// other environments.
|
|
isProperty = function (property) {
|
|
var parent = (this.constructor || constructor).prototype;
|
|
return property in this && !(property in parent && this[property] === parent[property]);
|
|
};
|
|
}
|
|
members = null;
|
|
return isProperty.call(this, property);
|
|
};
|
|
}
|
|
|
|
// Internal: Normalizes the `for...in` iteration algorithm across
|
|
// environments. Each enumerated key is yielded to a `callback` function.
|
|
forEach = function (object, callback) {
|
|
var size = 0, Properties, members, property;
|
|
|
|
// Tests for bugs in the current environment's `for...in` algorithm. The
|
|
// `valueOf` property inherits the non-enumerable flag from
|
|
// `Object.prototype` in older versions of IE, Netscape, and Mozilla.
|
|
(Properties = function () {
|
|
this.valueOf = 0;
|
|
}).prototype.valueOf = 0;
|
|
|
|
// Iterate over a new instance of the `Properties` class.
|
|
members = new Properties();
|
|
for (property in members) {
|
|
// Ignore all properties inherited from `Object.prototype`.
|
|
if (isProperty.call(members, property)) {
|
|
size++;
|
|
}
|
|
}
|
|
Properties = members = null;
|
|
|
|
// Normalize the iteration algorithm.
|
|
if (!size) {
|
|
// A list of non-enumerable properties inherited from `Object.prototype`.
|
|
members = ["valueOf", "toString", "toLocaleString", "propertyIsEnumerable", "isPrototypeOf", "hasOwnProperty", "constructor"];
|
|
// IE <= 8, Mozilla 1.0, and Netscape 6.2 ignore shadowed non-enumerable
|
|
// properties.
|
|
forEach = function (object, callback) {
|
|
var isFunction = getClass.call(object) == functionClass, property, length;
|
|
var hasProperty = !isFunction && typeof object.constructor != "function" && objectTypes[typeof object.hasOwnProperty] && object.hasOwnProperty || isProperty;
|
|
for (property in object) {
|
|
// Gecko <= 1.0 enumerates the `prototype` property of functions under
|
|
// certain conditions; IE does not.
|
|
if (!(isFunction && property == "prototype") && hasProperty.call(object, property)) {
|
|
callback(property);
|
|
}
|
|
}
|
|
// Manually invoke the callback for each non-enumerable property.
|
|
for (length = members.length; property = members[--length]; hasProperty.call(object, property) && callback(property));
|
|
};
|
|
} else if (size == 2) {
|
|
// Safari <= 2.0.4 enumerates shadowed properties twice.
|
|
forEach = function (object, callback) {
|
|
// Create a set of iterated properties.
|
|
var members = {}, isFunction = getClass.call(object) == functionClass, property;
|
|
for (property in object) {
|
|
// Store each property name to prevent double enumeration. The
|
|
// `prototype` property of functions is not enumerated due to cross-
|
|
// environment inconsistencies.
|
|
if (!(isFunction && property == "prototype") && !isProperty.call(members, property) && (members[property] = 1) && isProperty.call(object, property)) {
|
|
callback(property);
|
|
}
|
|
}
|
|
};
|
|
} else {
|
|
// No bugs detected; use the standard `for...in` algorithm.
|
|
forEach = function (object, callback) {
|
|
var isFunction = getClass.call(object) == functionClass, property, isConstructor;
|
|
for (property in object) {
|
|
if (!(isFunction && property == "prototype") && isProperty.call(object, property) && !(isConstructor = property === "constructor")) {
|
|
callback(property);
|
|
}
|
|
}
|
|
// Manually invoke the callback for the `constructor` property due to
|
|
// cross-environment inconsistencies.
|
|
if (isConstructor || isProperty.call(object, (property = "constructor"))) {
|
|
callback(property);
|
|
}
|
|
};
|
|
}
|
|
return forEach(object, callback);
|
|
};
|
|
|
|
// Public: Serializes a JavaScript `value` as a JSON string. The optional
|
|
// `filter` argument may specify either a function that alters how object and
|
|
// array members are serialized, or an array of strings and numbers that
|
|
// indicates which properties should be serialized. The optional `width`
|
|
// argument may be either a string or number that specifies the indentation
|
|
// level of the output.
|
|
if (!has("json-stringify")) {
|
|
// Internal: A map of control characters and their escaped equivalents.
|
|
var Escapes = {
|
|
92: "\\\\",
|
|
34: '\\"',
|
|
8: "\\b",
|
|
12: "\\f",
|
|
10: "\\n",
|
|
13: "\\r",
|
|
9: "\\t"
|
|
};
|
|
|
|
// Internal: Converts `value` into a zero-padded string such that its
|
|
// length is at least equal to `width`. The `width` must be <= 6.
|
|
var leadingZeroes = "000000";
|
|
var toPaddedString = function (width, value) {
|
|
// The `|| 0` expression is necessary to work around a bug in
|
|
// Opera <= 7.54u2 where `0 == -0`, but `String(-0) !== "0"`.
|
|
return (leadingZeroes + (value || 0)).slice(-width);
|
|
};
|
|
|
|
// Internal: Double-quotes a string `value`, replacing all ASCII control
|
|
// characters (characters with code unit values between 0 and 31) with
|
|
// their escaped equivalents. This is an implementation of the
|
|
// `Quote(value)` operation defined in ES 5.1 section 15.12.3.
|
|
var unicodePrefix = "\\u00";
|
|
var quote = function (value) {
|
|
var result = '"', index = 0, length = value.length, useCharIndex = !charIndexBuggy || length > 10;
|
|
var symbols = useCharIndex && (charIndexBuggy ? value.split("") : value);
|
|
for (; index < length; index++) {
|
|
var charCode = value.charCodeAt(index);
|
|
// If the character is a control character, append its Unicode or
|
|
// shorthand escape sequence; otherwise, append the character as-is.
|
|
switch (charCode) {
|
|
case 8: case 9: case 10: case 12: case 13: case 34: case 92:
|
|
result += Escapes[charCode];
|
|
break;
|
|
default:
|
|
if (charCode < 32) {
|
|
result += unicodePrefix + toPaddedString(2, charCode.toString(16));
|
|
break;
|
|
}
|
|
result += useCharIndex ? symbols[index] : value.charAt(index);
|
|
}
|
|
}
|
|
return result + '"';
|
|
};
|
|
|
|
// Internal: Recursively serializes an object. Implements the
|
|
// `Str(key, holder)`, `JO(value)`, and `JA(value)` operations.
|
|
var serialize = function (property, object, callback, properties, whitespace, indentation, stack) {
|
|
var value, className, year, month, date, time, hours, minutes, seconds, milliseconds, results, element, index, length, prefix, result;
|
|
try {
|
|
// Necessary for host object support.
|
|
value = object[property];
|
|
} catch (exception) {}
|
|
if (typeof value == "object" && value) {
|
|
className = getClass.call(value);
|
|
if (className == dateClass && !isProperty.call(value, "toJSON")) {
|
|
if (value > -1 / 0 && value < 1 / 0) {
|
|
// Dates are serialized according to the `Date#toJSON` method
|
|
// specified in ES 5.1 section 15.9.5.44. See section 15.9.1.15
|
|
// for the ISO 8601 date time string format.
|
|
if (getDay) {
|
|
// Manually compute the year, month, date, hours, minutes,
|
|
// seconds, and milliseconds if the `getUTC*` methods are
|
|
// buggy. Adapted from @Yaffle's `date-shim` project.
|
|
date = floor(value / 864e5);
|
|
for (year = floor(date / 365.2425) + 1970 - 1; getDay(year + 1, 0) <= date; year++);
|
|
for (month = floor((date - getDay(year, 0)) / 30.42); getDay(year, month + 1) <= date; month++);
|
|
date = 1 + date - getDay(year, month);
|
|
// The `time` value specifies the time within the day (see ES
|
|
// 5.1 section 15.9.1.2). The formula `(A % B + B) % B` is used
|
|
// to compute `A modulo B`, as the `%` operator does not
|
|
// correspond to the `modulo` operation for negative numbers.
|
|
time = (value % 864e5 + 864e5) % 864e5;
|
|
// The hours, minutes, seconds, and milliseconds are obtained by
|
|
// decomposing the time within the day. See section 15.9.1.10.
|
|
hours = floor(time / 36e5) % 24;
|
|
minutes = floor(time / 6e4) % 60;
|
|
seconds = floor(time / 1e3) % 60;
|
|
milliseconds = time % 1e3;
|
|
} else {
|
|
year = value.getUTCFullYear();
|
|
month = value.getUTCMonth();
|
|
date = value.getUTCDate();
|
|
hours = value.getUTCHours();
|
|
minutes = value.getUTCMinutes();
|
|
seconds = value.getUTCSeconds();
|
|
milliseconds = value.getUTCMilliseconds();
|
|
}
|
|
// Serialize extended years correctly.
|
|
value = (year <= 0 || year >= 1e4 ? (year < 0 ? "-" : "+") + toPaddedString(6, year < 0 ? -year : year) : toPaddedString(4, year)) +
|
|
"-" + toPaddedString(2, month + 1) + "-" + toPaddedString(2, date) +
|
|
// Months, dates, hours, minutes, and seconds should have two
|
|
// digits; milliseconds should have three.
|
|
"T" + toPaddedString(2, hours) + ":" + toPaddedString(2, minutes) + ":" + toPaddedString(2, seconds) +
|
|
// Milliseconds are optional in ES 5.0, but required in 5.1.
|
|
"." + toPaddedString(3, milliseconds) + "Z";
|
|
} else {
|
|
value = null;
|
|
}
|
|
} else if (typeof value.toJSON == "function" && ((className != numberClass && className != stringClass && className != arrayClass) || isProperty.call(value, "toJSON"))) {
|
|
// Prototype <= 1.6.1 adds non-standard `toJSON` methods to the
|
|
// `Number`, `String`, `Date`, and `Array` prototypes. JSON 3
|
|
// ignores all `toJSON` methods on these objects unless they are
|
|
// defined directly on an instance.
|
|
value = value.toJSON(property);
|
|
}
|
|
}
|
|
if (callback) {
|
|
// If a replacement function was provided, call it to obtain the value
|
|
// for serialization.
|
|
value = callback.call(object, property, value);
|
|
}
|
|
if (value === null) {
|
|
return "null";
|
|
}
|
|
className = getClass.call(value);
|
|
if (className == booleanClass) {
|
|
// Booleans are represented literally.
|
|
return "" + value;
|
|
} else if (className == numberClass) {
|
|
// JSON numbers must be finite. `Infinity` and `NaN` are serialized as
|
|
// `"null"`.
|
|
return value > -1 / 0 && value < 1 / 0 ? "" + value : "null";
|
|
} else if (className == stringClass) {
|
|
// Strings are double-quoted and escaped.
|
|
return quote("" + value);
|
|
}
|
|
// Recursively serialize objects and arrays.
|
|
if (typeof value == "object") {
|
|
// Check for cyclic structures. This is a linear search; performance
|
|
// is inversely proportional to the number of unique nested objects.
|
|
for (length = stack.length; length--;) {
|
|
if (stack[length] === value) {
|
|
// Cyclic structures cannot be serialized by `JSON.stringify`.
|
|
throw TypeError();
|
|
}
|
|
}
|
|
// Add the object to the stack of traversed objects.
|
|
stack.push(value);
|
|
results = [];
|
|
// Save the current indentation level and indent one additional level.
|
|
prefix = indentation;
|
|
indentation += whitespace;
|
|
if (className == arrayClass) {
|
|
// Recursively serialize array elements.
|
|
for (index = 0, length = value.length; index < length; index++) {
|
|
element = serialize(index, value, callback, properties, whitespace, indentation, stack);
|
|
results.push(element === undef ? "null" : element);
|
|
}
|
|
result = results.length ? (whitespace ? "[\n" + indentation + results.join(",\n" + indentation) + "\n" + prefix + "]" : ("[" + results.join(",") + "]")) : "[]";
|
|
} else {
|
|
// Recursively serialize object members. Members are selected from
|
|
// either a user-specified list of property names, or the object
|
|
// itself.
|
|
forEach(properties || value, function (property) {
|
|
var element = serialize(property, value, callback, properties, whitespace, indentation, stack);
|
|
if (element !== undef) {
|
|
// According to ES 5.1 section 15.12.3: "If `gap` {whitespace}
|
|
// is not the empty string, let `member` {quote(property) + ":"}
|
|
// be the concatenation of `member` and the `space` character."
|
|
// The "`space` character" refers to the literal space
|
|
// character, not the `space` {width} argument provided to
|
|
// `JSON.stringify`.
|
|
results.push(quote(property) + ":" + (whitespace ? " " : "") + element);
|
|
}
|
|
});
|
|
result = results.length ? (whitespace ? "{\n" + indentation + results.join(",\n" + indentation) + "\n" + prefix + "}" : ("{" + results.join(",") + "}")) : "{}";
|
|
}
|
|
// Remove the object from the traversed object stack.
|
|
stack.pop();
|
|
return result;
|
|
}
|
|
};
|
|
|
|
// Public: `JSON.stringify`. See ES 5.1 section 15.12.3.
|
|
exports.stringify = function (source, filter, width) {
|
|
var whitespace, callback, properties, className;
|
|
if (objectTypes[typeof filter] && filter) {
|
|
if ((className = getClass.call(filter)) == functionClass) {
|
|
callback = filter;
|
|
} else if (className == arrayClass) {
|
|
// Convert the property names array into a makeshift set.
|
|
properties = {};
|
|
for (var index = 0, length = filter.length, value; index < length; value = filter[index++], ((className = getClass.call(value)), className == stringClass || className == numberClass) && (properties[value] = 1));
|
|
}
|
|
}
|
|
if (width) {
|
|
if ((className = getClass.call(width)) == numberClass) {
|
|
// Convert the `width` to an integer and create a string containing
|
|
// `width` number of space characters.
|
|
if ((width -= width % 1) > 0) {
|
|
for (whitespace = "", width > 10 && (width = 10); whitespace.length < width; whitespace += " ");
|
|
}
|
|
} else if (className == stringClass) {
|
|
whitespace = width.length <= 10 ? width : width.slice(0, 10);
|
|
}
|
|
}
|
|
// Opera <= 7.54u2 discards the values associated with empty string keys
|
|
// (`""`) only if they are used directly within an object member list
|
|
// (e.g., `!("" in { "": 1})`).
|
|
return serialize("", (value = {}, value[""] = source, value), callback, properties, whitespace, "", []);
|
|
};
|
|
}
|
|
|
|
// Public: Parses a JSON source string.
|
|
if (!has("json-parse")) {
|
|
var fromCharCode = String.fromCharCode;
|
|
|
|
// Internal: A map of escaped control characters and their unescaped
|
|
// equivalents.
|
|
var Unescapes = {
|
|
92: "\\",
|
|
34: '"',
|
|
47: "/",
|
|
98: "\b",
|
|
116: "\t",
|
|
110: "\n",
|
|
102: "\f",
|
|
114: "\r"
|
|
};
|
|
|
|
// Internal: Stores the parser state.
|
|
var Index, Source;
|
|
|
|
// Internal: Resets the parser state and throws a `SyntaxError`.
|
|
var abort = function () {
|
|
Index = Source = null;
|
|
throw SyntaxError();
|
|
};
|
|
|
|
// Internal: Returns the next token, or `"$"` if the parser has reached
|
|
// the end of the source string. A token may be a string, number, `null`
|
|
// literal, or Boolean literal.
|
|
var lex = function () {
|
|
var source = Source, length = source.length, value, begin, position, isSigned, charCode;
|
|
while (Index < length) {
|
|
charCode = source.charCodeAt(Index);
|
|
switch (charCode) {
|
|
case 9: case 10: case 13: case 32:
|
|
// Skip whitespace tokens, including tabs, carriage returns, line
|
|
// feeds, and space characters.
|
|
Index++;
|
|
break;
|
|
case 123: case 125: case 91: case 93: case 58: case 44:
|
|
// Parse a punctuator token (`{`, `}`, `[`, `]`, `:`, or `,`) at
|
|
// the current position.
|
|
value = charIndexBuggy ? source.charAt(Index) : source[Index];
|
|
Index++;
|
|
return value;
|
|
case 34:
|
|
// `"` delimits a JSON string; advance to the next character and
|
|
// begin parsing the string. String tokens are prefixed with the
|
|
// sentinel `@` character to distinguish them from punctuators and
|
|
// end-of-string tokens.
|
|
for (value = "@", Index++; Index < length;) {
|
|
charCode = source.charCodeAt(Index);
|
|
if (charCode < 32) {
|
|
// Unescaped ASCII control characters (those with a code unit
|
|
// less than the space character) are not permitted.
|
|
abort();
|
|
} else if (charCode == 92) {
|
|
// A reverse solidus (`\`) marks the beginning of an escaped
|
|
// control character (including `"`, `\`, and `/`) or Unicode
|
|
// escape sequence.
|
|
charCode = source.charCodeAt(++Index);
|
|
switch (charCode) {
|
|
case 92: case 34: case 47: case 98: case 116: case 110: case 102: case 114:
|
|
// Revive escaped control characters.
|
|
value += Unescapes[charCode];
|
|
Index++;
|
|
break;
|
|
case 117:
|
|
// `\u` marks the beginning of a Unicode escape sequence.
|
|
// Advance to the first character and validate the
|
|
// four-digit code point.
|
|
begin = ++Index;
|
|
for (position = Index + 4; Index < position; Index++) {
|
|
charCode = source.charCodeAt(Index);
|
|
// A valid sequence comprises four hexdigits (case-
|
|
// insensitive) that form a single hexadecimal value.
|
|
if (!(charCode >= 48 && charCode <= 57 || charCode >= 97 && charCode <= 102 || charCode >= 65 && charCode <= 70)) {
|
|
// Invalid Unicode escape sequence.
|
|
abort();
|
|
}
|
|
}
|
|
// Revive the escaped character.
|
|
value += fromCharCode("0x" + source.slice(begin, Index));
|
|
break;
|
|
default:
|
|
// Invalid escape sequence.
|
|
abort();
|
|
}
|
|
} else {
|
|
if (charCode == 34) {
|
|
// An unescaped double-quote character marks the end of the
|
|
// string.
|
|
break;
|
|
}
|
|
charCode = source.charCodeAt(Index);
|
|
begin = Index;
|
|
// Optimize for the common case where a string is valid.
|
|
while (charCode >= 32 && charCode != 92 && charCode != 34) {
|
|
charCode = source.charCodeAt(++Index);
|
|
}
|
|
// Append the string as-is.
|
|
value += source.slice(begin, Index);
|
|
}
|
|
}
|
|
if (source.charCodeAt(Index) == 34) {
|
|
// Advance to the next character and return the revived string.
|
|
Index++;
|
|
return value;
|
|
}
|
|
// Unterminated string.
|
|
abort();
|
|
default:
|
|
// Parse numbers and literals.
|
|
begin = Index;
|
|
// Advance past the negative sign, if one is specified.
|
|
if (charCode == 45) {
|
|
isSigned = true;
|
|
charCode = source.charCodeAt(++Index);
|
|
}
|
|
// Parse an integer or floating-point value.
|
|
if (charCode >= 48 && charCode <= 57) {
|
|
// Leading zeroes are interpreted as octal literals.
|
|
if (charCode == 48 && ((charCode = source.charCodeAt(Index + 1)), charCode >= 48 && charCode <= 57)) {
|
|
// Illegal octal literal.
|
|
abort();
|
|
}
|
|
isSigned = false;
|
|
// Parse the integer component.
|
|
for (; Index < length && ((charCode = source.charCodeAt(Index)), charCode >= 48 && charCode <= 57); Index++);
|
|
// Floats cannot contain a leading decimal point; however, this
|
|
// case is already accounted for by the parser.
|
|
if (source.charCodeAt(Index) == 46) {
|
|
position = ++Index;
|
|
// Parse the decimal component.
|
|
for (; position < length && ((charCode = source.charCodeAt(position)), charCode >= 48 && charCode <= 57); position++);
|
|
if (position == Index) {
|
|
// Illegal trailing decimal.
|
|
abort();
|
|
}
|
|
Index = position;
|
|
}
|
|
// Parse exponents. The `e` denoting the exponent is
|
|
// case-insensitive.
|
|
charCode = source.charCodeAt(Index);
|
|
if (charCode == 101 || charCode == 69) {
|
|
charCode = source.charCodeAt(++Index);
|
|
// Skip past the sign following the exponent, if one is
|
|
// specified.
|
|
if (charCode == 43 || charCode == 45) {
|
|
Index++;
|
|
}
|
|
// Parse the exponential component.
|
|
for (position = Index; position < length && ((charCode = source.charCodeAt(position)), charCode >= 48 && charCode <= 57); position++);
|
|
if (position == Index) {
|
|
// Illegal empty exponent.
|
|
abort();
|
|
}
|
|
Index = position;
|
|
}
|
|
// Coerce the parsed value to a JavaScript number.
|
|
return +source.slice(begin, Index);
|
|
}
|
|
// A negative sign may only precede numbers.
|
|
if (isSigned) {
|
|
abort();
|
|
}
|
|
// `true`, `false`, and `null` literals.
|
|
if (source.slice(Index, Index + 4) == "true") {
|
|
Index += 4;
|
|
return true;
|
|
} else if (source.slice(Index, Index + 5) == "false") {
|
|
Index += 5;
|
|
return false;
|
|
} else if (source.slice(Index, Index + 4) == "null") {
|
|
Index += 4;
|
|
return null;
|
|
}
|
|
// Unrecognized token.
|
|
abort();
|
|
}
|
|
}
|
|
// Return the sentinel `$` character if the parser has reached the end
|
|
// of the source string.
|
|
return "$";
|
|
};
|
|
|
|
// Internal: Parses a JSON `value` token.
|
|
var get = function (value) {
|
|
var results, hasMembers;
|
|
if (value == "$") {
|
|
// Unexpected end of input.
|
|
abort();
|
|
}
|
|
if (typeof value == "string") {
|
|
if ((charIndexBuggy ? value.charAt(0) : value[0]) == "@") {
|
|
// Remove the sentinel `@` character.
|
|
return value.slice(1);
|
|
}
|
|
// Parse object and array literals.
|
|
if (value == "[") {
|
|
// Parses a JSON array, returning a new JavaScript array.
|
|
results = [];
|
|
for (;; hasMembers || (hasMembers = true)) {
|
|
value = lex();
|
|
// A closing square bracket marks the end of the array literal.
|
|
if (value == "]") {
|
|
break;
|
|
}
|
|
// If the array literal contains elements, the current token
|
|
// should be a comma separating the previous element from the
|
|
// next.
|
|
if (hasMembers) {
|
|
if (value == ",") {
|
|
value = lex();
|
|
if (value == "]") {
|
|
// Unexpected trailing `,` in array literal.
|
|
abort();
|
|
}
|
|
} else {
|
|
// A `,` must separate each array element.
|
|
abort();
|
|
}
|
|
}
|
|
// Elisions and leading commas are not permitted.
|
|
if (value == ",") {
|
|
abort();
|
|
}
|
|
results.push(get(value));
|
|
}
|
|
return results;
|
|
} else if (value == "{") {
|
|
// Parses a JSON object, returning a new JavaScript object.
|
|
results = {};
|
|
for (;; hasMembers || (hasMembers = true)) {
|
|
value = lex();
|
|
// A closing curly brace marks the end of the object literal.
|
|
if (value == "}") {
|
|
break;
|
|
}
|
|
// If the object literal contains members, the current token
|
|
// should be a comma separator.
|
|
if (hasMembers) {
|
|
if (value == ",") {
|
|
value = lex();
|
|
if (value == "}") {
|
|
// Unexpected trailing `,` in object literal.
|
|
abort();
|
|
}
|
|
} else {
|
|
// A `,` must separate each object member.
|
|
abort();
|
|
}
|
|
}
|
|
// Leading commas are not permitted, object property names must be
|
|
// double-quoted strings, and a `:` must separate each property
|
|
// name and value.
|
|
if (value == "," || typeof value != "string" || (charIndexBuggy ? value.charAt(0) : value[0]) != "@" || lex() != ":") {
|
|
abort();
|
|
}
|
|
results[value.slice(1)] = get(lex());
|
|
}
|
|
return results;
|
|
}
|
|
// Unexpected token encountered.
|
|
abort();
|
|
}
|
|
return value;
|
|
};
|
|
|
|
// Internal: Updates a traversed object member.
|
|
var update = function (source, property, callback) {
|
|
var element = walk(source, property, callback);
|
|
if (element === undef) {
|
|
delete source[property];
|
|
} else {
|
|
source[property] = element;
|
|
}
|
|
};
|
|
|
|
// Internal: Recursively traverses a parsed JSON object, invoking the
|
|
// `callback` function for each value. This is an implementation of the
|
|
// `Walk(holder, name)` operation defined in ES 5.1 section 15.12.2.
|
|
var walk = function (source, property, callback) {
|
|
var value = source[property], length;
|
|
if (typeof value == "object" && value) {
|
|
// `forEach` can't be used to traverse an array in Opera <= 8.54
|
|
// because its `Object#hasOwnProperty` implementation returns `false`
|
|
// for array indices (e.g., `![1, 2, 3].hasOwnProperty("0")`).
|
|
if (getClass.call(value) == arrayClass) {
|
|
for (length = value.length; length--;) {
|
|
update(value, length, callback);
|
|
}
|
|
} else {
|
|
forEach(value, function (property) {
|
|
update(value, property, callback);
|
|
});
|
|
}
|
|
}
|
|
return callback.call(source, property, value);
|
|
};
|
|
|
|
// Public: `JSON.parse`. See ES 5.1 section 15.12.2.
|
|
exports.parse = function (source, callback) {
|
|
var result, value;
|
|
Index = 0;
|
|
Source = "" + source;
|
|
result = get(lex());
|
|
// If a JSON string contains multiple tokens, it is invalid.
|
|
if (lex() != "$") {
|
|
abort();
|
|
}
|
|
// Reset the parser state.
|
|
Index = Source = null;
|
|
return callback && getClass.call(callback) == functionClass ? walk((value = {}, value[""] = result, value), "", callback) : result;
|
|
};
|
|
}
|
|
}
|
|
|
|
exports["runInContext"] = runInContext;
|
|
return exports;
|
|
}
|
|
|
|
if (freeExports && !isLoader) {
|
|
// Export for CommonJS environments.
|
|
runInContext(root, freeExports);
|
|
} else {
|
|
// Export for web browsers and JavaScript engines.
|
|
var nativeJSON = root.JSON,
|
|
previousJSON = root["JSON3"],
|
|
isRestored = false;
|
|
|
|
var JSON3 = runInContext(root, (root["JSON3"] = {
|
|
// Public: Restores the original value of the global `JSON` object and
|
|
// returns a reference to the `JSON3` object.
|
|
"noConflict": function () {
|
|
if (!isRestored) {
|
|
isRestored = true;
|
|
root.JSON = nativeJSON;
|
|
root["JSON3"] = previousJSON;
|
|
nativeJSON = previousJSON = null;
|
|
}
|
|
return JSON3;
|
|
}
|
|
}));
|
|
|
|
root.JSON = {
|
|
"parse": JSON3.parse,
|
|
"stringify": JSON3.stringify
|
|
};
|
|
}
|
|
|
|
// Export for asynchronous module loaders.
|
|
if (isLoader) {
|
|
define(function () {
|
|
return JSON3;
|
|
});
|
|
}
|
|
}).call(this);
|