Function dateFilter

code/songhop/www/lib/angular/angular.js:17146–17218

($locale)

 */
dateFilter.$inject = ['$locale'];
function dateFilter($locale) {


  var R_ISO8601_STR = /^(\d{4})-?(\d\d)-?(\d\d)(?:T(\d\d)(?::?(\d\d)(?::?(\d\d)(?:\.(\d+))?)?)?(Z|([+-])(\d\d):?(\d\d))?)?$/;
                     // 1        2       3         4          5          6          7          8  9     10      11
  function jsonStringToDate(string) {
    var match;
    if (match = string.match(R_ISO8601_STR)) {
      var date = new Date(0),
          tzHour = 0,
          tzMin  = 0,
          dateSetter = match[8] ? date.setUTCFullYear : date.setFullYear,
          timeSetter = match[8] ? date.setUTCHours : date.setHours;

      if (match[9]) {
        tzHour = int(match[9] + match[10]);
        tzMin = int(match[9] + match[11]);
      }
      dateSetter.call(date, int(match[1]), int(match[2]) - 1, int(match[3]));
      var h = int(match[4] || 0) - tzHour;
      var m = int(match[5] || 0) - tzMin;
      var s = int(match[6] || 0);
      var ms = Math.round(parseFloat('0.' + (match[7] || 0)) * 1000);
      timeSetter.call(date, h, m, s, ms);
      return date;
    }
    return string;
  }


  return function(date, format, timezone) {
    var text = '',
        parts = [],
        fn, match;

    format = format || 'mediumDate';
    format = $locale.DATETIME_FORMATS[format] || format;
    if (isString(date)) {
      date = NUMBER_STRING.test(date) ? int(date) : jsonStringToDate(date);
    }

    if (isNumber(date)) {
      date = new Date(date);
    }

    if (!isDate(date)) {
      return date;
    }

    while (format) {
      match = DATE_FORMATS_SPLIT.exec(format);
      if (match) {
        parts = concat(parts, match, 1);
        format = parts.pop();
      } else {
        parts.push(format);
        format = null;
      }