private function mergeReference($scope, $ref)
{
if (Utils::isAbsoluteUri($ref)) {
return $ref;
}
$joinedScope = implode('', $scope);
$isScopeAbsolute = Utils::isAbsoluteUri($joinedScope);
$isScopeRelative = Utils::isRelativeUri($joinedScope);
$isRefRelative = Utils::isRelativeUri($ref);
if ($isScopeAbsolute && $isRefRelative) {
$toRemove = preg_match('/\\/[^\\/]*$/', $joinedScope, $matches, PREG_OFFSET_CAPTURE);
if ($toRemove === 1) {
list(, $index) = $matches[0];
$joinedScope = substr($joinedScope, 0, $index + 1);
}
} else {
if ($isScopeRelative && $isRefRelative) {
$joinedScope = "";
} else {
$toRemove = preg_match('/[^#\\/]+$/', $joinedScope, $matches, PREG_OFFSET_CAPTURE);
if ($toRemove === 1) {
list(, $index) = $matches[0];
$joinedScope = substr($joinedScope, 0, $index + 1);
}
}
}
return preg_replace('/##/', '#', $joinedScope . $ref);
}
