function _subformat()

in trinidad-impl/src/main/javascript/META-INF/adf/jsLibs/DateFormat.js [219:431]

• 164 lines of code
• 38 McCabe index (conditional complexity)

function _subformat(
  inString,
  localeSymbols,
  locale,
  formatType,
  startIndex,
  charCount,
  time,
  stringHolder
  )
{    

  // string to append to the toString
  var appendString = null;
  
  var amPMAdjust = false;
    
  if ((formatType >= 'A') && (formatType <= 'Z') ||
      (formatType >= 'a') && (formatType <= 'z'))
  {
    switch (formatType)
    {
      case 'D': // day in year
      {
        var firstDayInYear = new Date(time.getFullYear(), 0, 1);
        var millisSinceFirstDayInYear = time - firstDayInYear;
        var daysSinceFirstDayInYear = Math.floor(millisSinceFirstDayInYear / _MILLIS_PER_DAY);

        // The above calculation produces a zero-based value (eg. daysSinceFirstDateInYear for Jan 1 is 0), but
        // the "day in year" value should be 1-based (eg. Jan 1 should be day 1), so we tack on 1 now.
        appendString = (daysSinceFirstDayInYear + 1); 
      }
      break;
      case 'E': // day in week
      {
        var dayOfWeek = time.getDay();
        
        appendString = (charCount <= 3)
                         ? localeSymbols.getShortWeekdays()[dayOfWeek]
                         : localeSymbols.getWeekdays()[dayOfWeek];
      }
      break;
      
      case 'F': // day of week in month
        appendString = "(Day of week in month)";
        break;
      
      case 'G': // era designator
      {
        var eras = localeSymbols.getEras();
        
        appendString = (time.getTime() < _getADEra().getTime())
                         ? eras[0]
                         : eras[1];
 
      }
      break;
                  
      case 'M': // month in year
      {
        var monthIndex = time.getMonth();
        
        if (charCount <= 2)
        {
          // use the month number
          appendString = _getPaddedNumber(monthIndex + 1, charCount);
        }
        else if (charCount == 3)
        {
          // use the month abbreviation
          appendString = localeSymbols.getShortMonths()[monthIndex];
        }
        else
        {
          // use the full month name
          appendString = localeSymbols.getMonths()[monthIndex];
        }
      }
      break;
      
      case 'S': // millisecond (0 - 999)
        appendString = _getPaddedNumber(time.getMilliseconds(), charCount);
        break;
      
      case 'W': // week in month
        appendString = "(Week in Month)";
        break;
      
      case 'a': // am/pm marker
      {
        var amPMs = localeSymbols.getAmPmStrings();
        
        appendString =  (_isPM(time.getHours()))
                          ? amPMs[1]
                          : amPMs[0];
      }
      break;
      
      case 'd': // day in month
        appendString = _getPaddedNumber(time.getDate(), charCount);
        break;
      
      case 'h': // hour in am/pm (1-12)
        hours = time.getHours();
        
        if (_isPM(hours))
          hours -= 12;
        
        if (hours == 0)
          hours = 12;

        appendString = _getPaddedNumber(hours, charCount);
        break;
      
      case 'K': // hour in am/pm (0-11)
         hours = time.getHours();
        
        if (_isPM(hours))
           hours -= 12;
         
        appendString = _getPaddedNumber(hours, charCount);
        break;

      case 'k': // hour in day (1-24)
        hours = time.getHours();
        if (hours == 0)
          hours = 24;
        appendString = _getPaddedNumber(hours, charCount);
        break;

      case 'H': // hour in day (0-23)
        appendString = _getPaddedNumber(time.getHours(), charCount);
        break;


      case 'm': // minute in hour 0 - 59)
        appendString = _getPaddedNumber(time.getMinutes(), charCount);
        break;
 
      case 's': // seconds in minute 0 - 59)
        appendString = _getPaddedNumber(time.getSeconds(), charCount);
        break;
   
      case 'w': // week in year
        appendString = "(Week in year)";
        break;
      
      case 'y': // year
      {
        var year = time.getFullYear();
        
        // Trinidad-2013: Thai Buddhist Calendar is offset by 543 years
        if (locale == "th_TH")
          year += _THAI_BUDDHIST_YEAR_OFFSET;
        
        // truncate 2 and 1 digit years to that number of digits
        var maxDigits = (charCount <= 2)
                          ? charCount
                          : null;
                          
                          
        appendString = _getPaddedNumber(year, charCount, maxDigits);
      }
      break;
        
        
      case 'z': // GMT timezone - "GMT Sign Hours : Minutes"
      {
        appendString = "GMT";
        
        var tzString = _getTimeZoneOffsetString(time, false);
        if (tzString)
        {
          // +/-HH:mm
          appendString += tzString[0];
          appendString += ":"
          appendString += tzString[1];
        }
      }
      break;
      
      case 'Z': // RFC 822 timeZone - "Sign TwoDigitHours Minutes"
      { 
        var tzString = _getTimeZoneOffsetString(time, true);
        if (tzString)
        {
          // +/-HHmm
          appendString = tzString[0];
          appendString += tzString[1];
        }
        else
        {
          appendString = "";
        }
      }
      break;
    
      default:
        // do nothing rather than throw an exception
        appendString = "";
    }
  }
  else
  {
    // all other results are literal
    appendString = inString.substring(startIndex, startIndex + charCount);
  }
  
  stringHolder.value += appendString;
  
  // formatting should never fail
  return true;
}