YearRenderer.php

<?php
/*
 * citeproc-php: DateRangeYearParser.php
 * User: Sebastian Böttger <sebastian.boettger@thomascook.de>
 * created at 03.11.19, 20:01
 */
 
namespace Seboettg\CiteProc\Rendering\Date\DateRange;
 
use Seboettg\CiteProc\Rendering\Date\DatePart;
use Seboettg\CiteProc\Rendering\Date\DateTime;
use Seboettg\Collection\ArrayList;
 
class YearRenderer extends DateRangeRenderer
{
 
    public function parseDateRange(ArrayList $dateParts, DateTime $from, DateTime $to, $delimiter)
    {
        $ret = "";
        foreach ($dateParts as $key => $datePart) {
            if (strpos($key, "year") !== false) {
                $ret .= $this->renderOneRangePart($datePart, $from, $to, $delimiter);
            }
            if (strpos($key, "month") !== false) {
                $day = !empty($d = $from->getMonth()) ? $d : "";
                $ret .= $day;
            }
            if (strpos($key, "day") !== false) {
                $day = !empty($d = $from->getDay()) ? $datePart->render($from, $this->parentDateObject) : "";
                $ret .= $day;
            }
        }
        return $ret;
    }
}