dlstatic / static-pnr · Files

if (typeof JSON !== 'object') {
	JSON = {};
}

(function() {
	'use strict';

	function f(n) {
		return n < 10 ? '0' + n : n;
	}

	if (typeof Date.prototype.toJSON !== 'function') {

		Date.prototype.toJSON = function(key) {

			return isFinite(this.valueOf()) ? this.getUTCFullYear() + '-'
					+ f(this.getUTCMonth() + 1) + '-' + f(this.getUTCDate())
					+ 'T' + f(this.getUTCHours()) + ':'
					+ f(this.getUTCMinutes()) + ':' + f(this.getUTCSeconds())
					+ 'Z' : null;
		};

		String.prototype.toJSON = Number.prototype.toJSON = Boolean.prototype.toJSON = function(
				key) {
			return this.valueOf();
		};
	}

	var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g, escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g, gap, indent, meta = {
		'\b' : '\\b',
		'\t' : '\\t',
		'\n' : '\\n',
		'\f' : '\\f',
		'\r' : '\\r',
		'"' : '\\"',
		'\\' : '\\\\'
	}, rep;

	function quote(string) {

		escapable.lastIndex = 0;
		return escapable.test(string) ? '"'
				+ string.replace(escapable,
						function(a) {
							var c = meta[a];
							return typeof c === 'string' ? c : '\\u'
									+ ('0000' + a.charCodeAt(0).toString(16))
											.slice(-4);
						}) + '"' : '"' + string + '"';
	}

	function str(key, holder) {

		var i, k, v, length, mind = gap, partial, value = holder[key];

		if (value && typeof value === 'object'
				&& typeof value.toJSON === 'function') {
			value = value.toJSON(key);
		}

		if (typeof rep === 'function') {
			value = rep.call(holder, key, value);
		}

		switch (typeof value) {
		case 'string':
			return quote(value);

		case 'number':

			return isFinite(value) ? String(value) : 'null';

		case 'boolean':
		case 'null':

			return String(value);

		case 'object':

			if (!value) {
				return 'null';
			}

			gap += indent;
			partial = [];

			if (Object.prototype.toString.apply(value) === '[object Array]') {

				length = value.length;
				for (i = 0; i < length; i += 1) {
					partial[i] = str(i, value) || 'null';
				}

				v = partial.length === 0 ? '[]' : gap ? '[\n' + gap
						+ partial.join(',\n' + gap) + '\n' + mind + ']' : '['
						+ partial.join(',') + ']';
				gap = mind;
				return v;
			}

			if (rep && typeof rep === 'object') {
				length = rep.length;
				for (i = 0; i < length; i += 1) {
					if (typeof rep[i] === 'string') {
						k = rep[i];
						v = str(k, value);
						if (v) {
							partial.push(quote(k) + (gap ? ': ' : ':') + v);
						}
					}
				}
			} else {

				for (k in value) {
					if (Object.prototype.hasOwnProperty.call(value, k)) {
						v = str(k, value);
						if (v) {
							partial.push(quote(k) + (gap ? ': ' : ':') + v);
						}
					}
				}
			}

			v = partial.length === 0 ? '{}' : gap ? '{\n' + gap
					+ partial.join(',\n' + gap) + '\n' + mind + '}' : '{'
					+ partial.join(',') + '}';
			gap = mind;
			return v;
		}
	}

	if (typeof JSON.stringify !== 'function') {
		JSON.stringify = function(value, replacer, space) {

			var i;
			gap = '';
			indent = '';

			if (typeof space === 'number') {
				for (i = 0; i < space; i += 1) {
					indent += ' ';
				}

			} else if (typeof space === 'string') {
				indent = space;
			}

			rep = replacer;
			if (replacer
					&& typeof replacer !== 'function'
					&& (typeof replacer !== 'object' || typeof replacer.length !== 'number')) {
				throw new Error('JSON.stringify');
			}

			return str('', {
				'' : value
			});
		};
	}

	if (typeof JSON.parse !== 'function') {
		JSON.parse = function(text, reviver) {

			var j;

			function walk(holder, key) {

				var k, v, value = holder[key];
				if (value && typeof value === 'object') {
					for (k in value) {
						if (Object.prototype.hasOwnProperty.call(value, k)) {
							v = walk(value, k);
							if (v !== undefined) {
								value[k] = v;
							} else {
								delete value[k];
							}
						}
					}
				}
				return reviver.call(holder, key, value);
			}

			text = String(text);
			cx.lastIndex = 0;
			if (cx.test(text)) {
				text = text.replace(cx,
						function(a) {
							return '\\u'
									+ ('0000' + a.charCodeAt(0).toString(16))
											.slice(-4);
						});
			}

			if (/^[\],:{}\s]*$/
					.test(text
							.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@')
							.replace(
									/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g,
									']').replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) {

				j = eval('(' + text + ')');

				return typeof reviver === 'function' ? walk({
					'' : j
				}, '') : j;
			}

			throw new SyntaxError('JSON.parse');
		};
	}
}());