olly/gist:663286

## gistfile1.html
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
   "http://www.w3.org/TR/html4/strict.dtd">

<html lang="en">
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
  <title>JSON Test</title>

  <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.3/jquery.min.js"></script>
  <script>

    Date.ISO8601Matcher = /([0-9]{4})(-([0-9]{2})(-([0-9]{2})(T([0-9]{2}):([0-9]{2})(:([0-9]{2})(\.([0-9]+))?)?(Z|(([-+])([0-9]{2}):([0-9]{2})))?)?)?)?/;
    Date.prototype.setISO8601 = function (string) {
        var d = string.match(Date.ISO8601Matcher);

        var offset = 0;
        var date = new Date(d[1], 0, 1);

        if (d[3]) { date.setMonth(d[3] - 1); }
        if (d[5]) { date.setDate(d[5]); }
        if (d[7]) { date.setHours(d[7]); }
        if (d[8]) { date.setMinutes(d[8]); }
        if (d[10]) { date.setSeconds(d[10]); }
        if (d[12]) { date.setMilliseconds(Number("0." + d[12]) * 1000); }
        if (d[14]) {
            offset = (Number(d[16]) * 60) + Number(d[17]);
            offset *= ((d[15] == '-') ? 1 : -1);
        }

        offset -= date.getTimezoneOffset();
        time = (Number(date) + (offset * 60 * 1000));
        this.setTime(Number(time));
    }

    var stringMatchingDateReplacer = function(key, value) {
      if(typeof value === 'string' && value.match(Date.ISO8601Matcher)) {
        var date = new Date();
        date.setISO8601(value);
        return date;
      }

      return value;
    }

    var keyMatchingDateReplacer = function(key, value) {
      var dateKeys = ['date'];
      if(dateKeys.indexOf(key) > -1) {
        var date = new Date();
        date.setISO8601(value);
        return date;
      }

      return value;
    }

    $(document).ready(function() {

      // JSON
      data = {date: new Date()};
      json = JSON.stringify(data)
      $('#json').text(json);

      // String Matching
      var stringMatchingData = JSON.parse(json, stringMatchingDateReplacer);
      $('#stringMatchingDateType').text(typeof stringMatchingData.date);
      $('#stringMatchingDate').text(stringMatchingData.date.toString());

      // Key Matching
      var keyMatchingData = JSON.parse(json, keyMatchingDateReplacer);
      $('#keyMatchingDateType').text(typeof keyMatchingData.date);
      $('#keyMatchingDate').text(keyMatchingData.date.toString());
    });

  </script>

</head>
<body>
  <h5>JSON</h5>
  <pre id="json"></pre>

  <h5>String Matching</h5>
  <pre id="stringMatchingDateType"></pre>
  <pre id="stringMatchingDate"></pre>

  <h5>Key Matching</h5>
  <pre id="keyMatchingDateType"></pre>
  <pre id="keyMatchingDate"></pre>

</body>
</html>
	<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
	"http://www.w3.org/TR/html4/strict.dtd">

	<html lang="en">
	<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
	<title>JSON Test</title>

	<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.3/jquery.min.js"></script>
	<script>

	Date.ISO8601Matcher = /([0-9]{4})(-([0-9]{2})(-([0-9]{2})(T([0-9]{2}):([0-9]{2})(:([0-9]{2})(\.([0-9]+))?)?(Z\|(([-+])([0-9]{2}):([0-9]{2})))?)?)?)?/;
	Date.prototype.setISO8601 = function (string) {
	var d = string.match(Date.ISO8601Matcher);

	var offset = 0;
	var date = new Date(d[1], 0, 1);

	if (d[3]) { date.setMonth(d[3] - 1); }
	if (d[5]) { date.setDate(d[5]); }
	if (d[7]) { date.setHours(d[7]); }
	if (d[8]) { date.setMinutes(d[8]); }
	if (d[10]) { date.setSeconds(d[10]); }
	if (d[12]) { date.setMilliseconds(Number("0." + d[12]) * 1000); }
	if (d[14]) {
	offset = (Number(d[16]) * 60) + Number(d[17]);
	offset *= ((d[15] == '-') ? 1 : -1);
	}

	offset -= date.getTimezoneOffset();
	time = (Number(date) + (offset * 60 * 1000));
	this.setTime(Number(time));
	}

	var stringMatchingDateReplacer = function(key, value) {
	if(typeof value === 'string' && value.match(Date.ISO8601Matcher)) {
	var date = new Date();
	date.setISO8601(value);
	return date;
	}

	return value;
	}

	var keyMatchingDateReplacer = function(key, value) {
	var dateKeys = ['date'];
	if(dateKeys.indexOf(key) > -1) {
	var date = new Date();
	date.setISO8601(value);
	return date;
	}

	return value;
	}

	$(document).ready(function() {

	// JSON
	data = {date: new Date()};
	json = JSON.stringify(data)
	$('#json').text(json);

	// String Matching
	var stringMatchingData = JSON.parse(json, stringMatchingDateReplacer);
	$('#stringMatchingDateType').text(typeof stringMatchingData.date);
	$('#stringMatchingDate').text(stringMatchingData.date.toString());

	// Key Matching
	var keyMatchingData = JSON.parse(json, keyMatchingDateReplacer);
	$('#keyMatchingDateType').text(typeof keyMatchingData.date);
	$('#keyMatchingDate').text(keyMatchingData.date.toString());
	});

	</script>

	</head>
	<body>
	<h5>JSON</h5>
	<pre id="json"></pre>

	<h5>String Matching</h5>
	<pre id="stringMatchingDateType"></pre>
	<pre id="stringMatchingDate"></pre>

	<h5>Key Matching</h5>
	<pre id="keyMatchingDateType"></pre>
	<pre id="keyMatchingDate"></pre>

	</body>
	</html>