/**
* Combine tags
*/
public static function combineTags($tag1, $tag2)
{
// Return if tags are the same
if ($tag1 == $tag2) {
return $tag1;
}
if (!preg_match('#<([a-z][a-z0-9]*)#si', $tag1, $tag_type)) {
return $tag2;
}
$tag_type = $tag_type[1];
if (!($attribs = NNText::combineAttributes($tag1, $tag2))) {
return '<' . $tag_type . '>';
}
return '<' . $tag_type . ' ' . $attribs . '>';
}