public static function getRegexp($strFormat = null)
{
if ($strFormat === null) {
$strFormat = static::getNumericDateFormat();
}
if (!static::isNumericFormat($strFormat)) {
throw new \Exception(sprintf('Invalid date format "%s"', $strFormat));
}
return preg_replace_callback('/[a-zA-Z]/', function ($matches) {
// Thanks to Christian Labuda
$arrRegexp = array('a' => '(?P<a>am|pm)', 'A' => '(?P<A>AM|PM)', 'd' => '(?P<d>0[1-9]|[12][0-9]|3[01])', 'g' => '(?P<g>[1-9]|1[0-2])', 'G' => '(?P<G>[0-9]|1[0-9]|2[0-3])', 'h' => '(?P<h>0[1-9]|1[0-2])', 'H' => '(?P<H>[01][0-9]|2[0-3])', 'i' => '(?P<i>[0-5][0-9])', 'j' => '(?P<j>[1-9]|[12][0-9]|3[01])', 'm' => '(?P<m>0[1-9]|1[0-2])', 'n' => '(?P<n>[1-9]|1[0-2])', 's' => '(?P<s>[0-5][0-9])', 'Y' => '(?P<Y>[0-9]{4})', 'y' => '(?P<y>[0-9]{2})');
return isset($arrRegexp[$matches[0]]) ? $arrRegexp[$matches[0]] : $matches[0];
}, preg_quote($strFormat));
} /**
* Process a custom date regexp on a widget.
*
* @param string $rgxp The rgxp being evaluated.
*
* @param string $value The value to check.
*
* @param Widget $widget The widget to process.
*
* @return void
*
* @SuppressWarnings(PHPMD.Superglobals)
* @SuppressWarnings(PHPMD.CamelCaseVariableName)
*/
public static function processCustomDateRegexp($rgxp, $value, $widget)
{
if ('MetaModelsFilterRangeDateRgXp' !== $rgxp) {
return;
}
$format = $widget->dateformat;
if (!preg_match('~^' . Date::getRegexp($format) . '$~i', $value)) {
$widget->addError(sprintf($GLOBALS['TL_LANG']['ERR']['date'], Date::getInputFormat($format)));
} else {
// Validate the date (see https://github.com/contao/core/issues/5086)
try {
new Date($value, $format);
} catch (\OutOfBoundsException $e) {
$widget->addError(sprintf($GLOBALS['TL_LANG']['ERR']['invalidDate'], $value));
}
}
}
