horros / agavi2

                    if ($woy == 1) {  // FIRST WEEK ---------------------------------

                        // nextFirst is now the localized DOW of Jan 1  of y-woy+1

                        if (($nextFirst > 0) &&   // Jan 1 starts on FDOW

                            (7 - $nextFirst) >= $this->getMinimalDaysInFirstWeek() // or enough days in the week

                        ) {

                            // Jan 1 of (yearWoy+1) is in yearWoy+1 - recalculate JD to next year

                            $julianDay = $nextJulianDay;

                            // recalculate 'first' [0-based local dow of jan 1]

                            $first = $this->julianDayToDayOfWeek($julianDay + 1) - $firstDayOfWeek;

                            if ($first < 0) {

                                $first += 7;

                            }

                            // recalculate date.

                            $date = 1 - $first + $dowLocal;

                        }

                    } elseif ($woy >= $this->getLeastMaximum($bestField)) {

                        // could be in the last week- find out if this JD would overstep

                        $testDate = $date;

                        if ((7 - $first) < $this->getMinimalDaysInFirstWeek()) {

                        // Now adjust for the week number.

                        $testDate += 7 * ($woy - 1);

                        if ($julianDay + $testDate > $nextJulianDay) { // is it past Dec 31?  (nextJulianDay is day BEFORE year+1's  Jan 1)

                            // Fire up the calculating engines.. retry YWOY = (year-1)

                            $julianDay = $this->handleComputeMonthStart($year - 1, 0, false); // jd before Jan 1 of previous year

                            $first = $this->julianDayToDayOfWeek($julianDay + 1) - $firstDayOfWeek; // 0 based local dow   of first week

                            if ($first < 0) { // 0..6

                                $first += 7;

                            }

                            $date = 1 - $first + $dowLocal;

                        } /* correction needed */

                    } /* leastmaximum */

                } /* resolvefields(year) != year_woy */

            } /* bestfield != week_of_year */