datemodule.java

RESIN 3.2 最新源码

      
      int token = nextToken();
      
      if (token == INT) {
	_date.setMinute(_value);
	_value = NULL_VALUE;
      }
      else {
	_peekToken = token;
	return;
      }

      token = nextToken();

      if (token == ':') {
	token = nextToken();
      
	if (token == INT) {
	  _date.setSecond(_value);
	  _value = NULL_VALUE;
	}
	else {
	  _peekToken = token;
	  return;
	}

	token = nextToken();

	if (token == '.') { // milliseconds
	  token = nextToken();

	  _value = NULL_VALUE;
	  if (token != INT) {
	    _peekToken = token;
	    return;
	  }
	}
      }

      if (token == AM) {
	hour = _date.getHour();

	if (hour == 12)
	  _date.setHour(0);
      }
      else if (token == PM) {
	hour = _date.getHour();

	if (hour == 12)
	  _date.setHour(12);
	else
	  _date.setHour(hour + 12);
      }
      else
	_peekToken = token;

      parseTimezone();
    }

    private void parseTimezone()
    {
      int token = nextToken();
      int sign = 1;
      boolean hasUTC = false;

      if (token == UTC) {
	token = nextToken();
	
	hasUTC = true;
      }

      if (token == '-')
	sign = -1;
      else if (token == '+')
	sign = 1;
      else {
	_peekToken = token;

	if (hasUTC)
	  _date.setGMTTime(_date.getGMTTime() + _date.getZoneOffset());
	
	return;
      }

      int offset = 0;

      token = nextToken();
      if (token != INT) {
	_peekToken = token;

	if (hasUTC)
	  _date.setGMTTime(_date.getGMTTime() + _date.getZoneOffset());
	  
	return;
      }
      else if (_digits == 4) {
	int value = sign * _value;
	_value = NULL_VALUE;

	_date.setGMTTime(_date.getGMTTime() - value * 60000L + _date.getZoneOffset());
	return;
      }
      else if (_digits == 2) {
	int value = _value;

	token = nextToken();

	if (token != ':') {
	  _value = sign * _value;
	  _peekToken = token;

	  if (hasUTC)
	    _date.setGMTTime(_date.getGMTTime() + _date.getZoneOffset());
	  return;
	}

	value = sign * (100 * value + _value);

	_date.setGMTTime(_date.getGMTTime() - value * 60000L + _date.getZoneOffset());
	return;
      }
      else {
	_value = sign * _value;
	_peekToken = token;
	
	if (hasUTC)
	  _date.setGMTTime(_date.getGMTTime() + _date.getZoneOffset());
	
	return;
      }
    }

    private void addTime(int value, int unit)
    {
      if (value == NULL_VALUE)
	value = 1;
      else if (value == -NULL_VALUE)
	value = -1;
      
      switch (unit) {
      case UNIT_YEAR:
	_date.setYear(_date.getYear() + value);
	break;
      case UNIT_MONTH:
	_date.setMonth(_date.getMonth() + value);
	break;
      case UNIT_FORTNIGHT:
	_date.setGMTTime(_date.getGMTTime() + 14 * DAY * value);
	break;
      case UNIT_WEEK:
	_date.setGMTTime(_date.getGMTTime() + 7 * DAY * value);
	break;
      case UNIT_DAY:
	_date.setGMTTime(_date.getGMTTime() + DAY * value);
	break;
      case UNIT_HOUR:
	_date.setGMTTime(_date.getGMTTime() + HOUR * value);
	break;
      case UNIT_MINUTE:
	_date.setGMTTime(_date.getGMTTime() + MINUTE * value);
	break;
      case UNIT_SECOND:
	_date.setGMTTime(_date.getGMTTime() + 1000L * value);
	break;
      }
    }

    private void addWeekday(int value, int weekday)
    {
      if (value == NULL_VALUE)
	value = 0;
      else if (value == -NULL_VALUE)
	value = -1;

      _date.setDayOfMonth(_date.getDayOfMonth() +
			  (8 + weekday - _date.getDayOfWeek()) % 7 +
			  7 * value);
    }

    private void parseBareInt(int value, int digits)
    {
      if (digits == 8 && ! _hasDate) {
	_hasDate = true;

	_date.setYear(value / 10000);
	_date.setMonth((value / 100 % 12) - 1);
	_date.setDayOfMonth(value % 100);
      }
      else if (digits == 6 && ! _hasTime) {
	_hasTime = true;
	_date.setHour(value / 10000);
	_date.setMinute(value / 100 % 100);
	_date.setSecond(value % 100);

	parseTimezone();
      }
      else if (digits == 4 && ! _hasTime) {
	_hasTime = true;
	_date.setHour(value / 100);
	_date.setMinute(value % 100);
	_date.setSecond(0);
	parseTimezone();
      }
      else if (digits == 2 && ! _hasTime) {
	_hasTime = true;
	_date.setHour(value);
	_date.setMinute(0);
	_date.setSecond(0);
	parseTimezone();
      }

      int token = nextToken();
      if (token == '.') {
	_value = NULL_VALUE;
	token = nextToken();

	if (token == INT)
	  _value = NULL_VALUE;
	else
	  _peekToken = token;
      }
      else
	_peekToken = token;
    }

    int nextToken()
    {
      if (_peekToken > 0) {
	int token = _peekToken;
	_peekToken = 0;
	return token;
      }
      
      while (true) {
	skipSpaces();
      
	int ch = read();

	if (ch < 0)
	  return -1;
	else if (ch == '-')
	  return '-';
	else if (ch == '+')
	  return '+';
	else if (ch == ':')
	  return ':';
	else if (ch == '.')
	  return '.';
	else if (ch == '/')
	  return '/';
	else if (ch == '@')
	  return '@';
	else if ('0' <= ch && ch <= '9') {
	  int value = 0;
	  int digits = 0;

	  for (; '0' <= ch && ch <= '9'; ch = read()) {
	    digits++;
	    value = 10 * value + ch - '0';
	  }

	  _value = value;
	  _digits = digits;

	  unread();

	  return INT;
	}
	else if ('a' <= ch && ch <= 'z' || 'A' <= ch && ch <= 'Z') {
	  _sb.setLength(0);
	
	  for (;
	       'a' <= ch && ch <= 'z' || 'A' <= ch && ch <= 'Z' || ch == '.';
	       ch = read()) {
	    _sb.append(Character.toLowerCase((char) ch));
	  }

	  unread();

	  String s = _sb.toString();

	  return parseString(s);
	}
	else {
	  // skip
	}
      }
    }

    private int parseString(String s)
    {
      if (s.endsWith("."))
	s = s.substring(0, s.length() - 1);
      
      if ("now".equals(s) ||
	  "today".equals(s)) {
	_value = 0;
	_unit = UNIT_NOW;
	return PERIOD;
      }
      else if ("last".equals(s)) {
	_value = -1;
	return INT;
      }
      else if ("this".equals(s)) {
	_value = 0;
	return INT;
      }
      else if ("am".equals(s) || "a.m".equals(s)) {
	return AM;
      }
      else if ("pm".equals(s) || "p.m".equals(s)) {
	return PM;
      }
      else if ("next".equals(s)) {
	_value = 1;
	return INT;
      }
      else if ("third".equals(s)) {
	_value = 3;
	return INT;
      }
      else if ("fourth".equals(s)) {
	_value = 4;
	return INT;
      }
      else if ("fifth".equals(s)) {
	_value = 5;
	return INT;
      }
      else if ("sixth".equals(s)) {
	_value = 6;
	return INT;
      }
      else if ("seventh".equals(s)) {
	_value = 7;
	return INT;
      }
      else if ("eighth".equals(s)) {
	_value = 8;
	return INT;
      }
      else if ("ninth".equals(s)) {
	_value = 9;
	return INT;
      }
      else if ("tenth".equals(s)) {
	_value = 10;
	return INT;
      }
      else if ("eleventh".equals(s)) {
	_value = 11;
	return INT;
      }
      else if ("twelfth".equals(s)) {
	_value = 12;
	return INT;
      }
      else if ("yesterday".equals(s)) {
	_value = -1;
	_unit = UNIT_DAY;
	return PERIOD;
      }
      else if ("tomorrow".equals(s)) {
	_value = 1;
	_unit = UNIT_DAY;
	return PERIOD;
      }
      else if ("ago".equals(s)) {
	return AGO;
      }
      else if ("year".equals(s) || "years".equals(s)) {
	_unit = UNIT_YEAR;
	return PERIOD;
      }
      else if ("month".equals(s) || "months".equals(s)) {
	_unit = UNIT_MONTH;
	return PERIOD;
      }
      else if ("fortnight".equals(s) || "fortnights".equals(s)) {
	_unit = UNIT_FORTNIGHT;
	return PERIOD;
      }
      else if ("week".equals(s) || "weeks".equals(s)) {
	_unit = UNIT_WEEK;
	return PERIOD;
      }
      else if ("day".equals(s) || "days".equals(s)) {
	_unit = UNIT_DAY;
	return PERIOD;
      }
      else if ("hour".equals(s) || "hours".equals(s)) {
	_unit = UNIT_HOUR;
	return PERIOD;
      }
      else if ("minute".equals(s) || "minutes".equals(s)) {
	_unit = UNIT_MINUTE;
	return PERIOD;
      }
      else if ("second".equals(s) || "seconds".equals(s)) {
	_unit = UNIT_SECOND;
	return PERIOD;
      }
      else if ("second".equals(s) || "seconds".equals(s)) {
	_unit = UNIT_SECOND;
	return PERIOD;
      }
      else if ("january".equals(s) || "jan".equals(s)) {
	_value = 1;
	return MONTH;
      }
      else if ("february".equals(s) || "feb".equals(s)) {
	_value = 2;
	return MONTH;
      }
      else if ("march".equals(s) || "mar".equals(s)) {
	_value = 3;
	return MONTH;
      }
      else if ("april".equals(s) || "apr".equals(s)) {
	_value = 4;
	return MONTH;
      }
      else if ("may".equals(s)) {
	_value = 5;
	return MONTH;
      }
      else if ("june".equals(s) || "jun".equals(s)) {
	_value = 6;
	return MONTH;
      }
      else if ("july".equals(s) || "jul".equals(s)) {
	_value = 7;
	return MONTH;
      }
      else if ("august".equals(s) || "aug".equals(s)) {
	_value = 8;
	return MONTH;
      }
      else if ("september".equals(s) || "sep".equals(s) || "sept".equals(s)) {
	_value = 9;
	return MONTH;
      }
      else if ("october".equals(s) || "oct".equals(s)) {
	_value = 10;
	return MONTH;
      }
      else if ("november".equals(s) || "nov".equals(s)) {
	_value = 11;
	return MONTH;
      }
      else if ("december".equals(s) || "dec".equals(s)) {
	_value = 12;
	return MONTH;
      }
      else if ("sunday".equals(s) || "sun".equals(s)) {
	_weekday = 0;
	return WEEKDAY;
      }
      else if ("monday".equals(s) || "mon".equals(s)) {
	_weekday = 1;
	return WEEKDAY;
      }
      else if ("tuesday".equals(s) || "tue".equals(s) || "tues".equals(s)) {
	_weekday = 2;
	return WEEKDAY;
      }
      else if ("wednesday".equals(s) || "wed".equals(s) ||
	       "wednes".equals(s)) {
	_weekday = 3;
	return WEEKDAY;
      }
      else if ("thursday".equals(s) || "thu".equals(s) ||
	       "thur".equals(s) || "thurs".equals(s)) {
	_weekday = 4;
	return WEEKDAY;
      }
      else if ("friday".equals(s) || "fri".equals(s)) {
	_weekday = 5;
	return WEEKDAY;
      }
      else if ("saturday".equals(s) || "sat".equals(s)) {
	_weekday = 6;
	return WEEKDAY;
      }
      else if ("z".equals(s) || "gmt".equals(s) || "utc".equals(s)) {
	return UTC;
      }
      else
	return 0;
    }

    private void skipSpaces()
    {
      while (true) {
	int ch = read();

	if (Character.isWhitespace((char) ch)) {
	  continue;
	}
	else if (ch == '(') {
	  for (ch = read(); ch > 0 && ch != ')'; ch = read()) {
	  }
	}
	else {
	  unread();
	  return;
	}
      }
    }

    int read()
    {
      if (_index < _length)
	return _s.charAt(_index++);
      else {
	_index++;
	return -1;
      }
    }

    void unread()
    {
      _index--;
    }
  }
}