public static function getRegexTags($tags, $include_no_attributes = true, $include_ending = true, $required_attributes = array())
{
require_once __DIR__ . '/text.php';
$tags = nnText::toArray($tags);
$tags = count($tags) > 1 ? '(?:' . implode('|', $tags) . ')' : $tags['0'];
$spaces = self::getRegexSpaces();
$attribs = $spaces . '[^>"]*(?:"[^"]*"[^>"]*)+';
$required_attributes = nnText::toArray($required_attributes);
if (!empty($required_attributes)) {
$attribs = $spaces . '[^>"]*(?:"[^"]*"[^>"]*)*(?:' . implode('|', $required_attributes) . ')\\s*=\\s*(?:"[^"]*"[^>"]*)+';
}
if ($include_no_attributes) {
$attribs = '(?:' . $attribs . ')?';
}
if (!$include_ending) {
return '<' . $tags . $attribs . '>';
}
return '<(?:\\/' . $tags . '|' . $tags . $attribs . ')(?:\\/|' . $spaces . ')*>';
}
