_get_block_templates_paths( string $base_directory ): string[]

297function _get_block_templates_paths( $base_directory ) {298	static $template_path_list = array();299	if ( isset( $template_path_list[ $base_directory ] ) ) {300		return $template_path_list[ $base_directory ];301	}302	$path_list = array();303	if ( is_dir( $base_directory ) ) {304		$nested_files      = new RecursiveIteratorIterator( new RecursiveDirectoryIterator( $base_directory ) );305		$nested_html_files = new RegexIterator( $nested_files, '/^.+\.html$/i', RecursiveRegexIterator::GET_MATCH );306		foreach ( $nested_html_files as $path => $file ) {307			$path_list[] = $path;308		}309	}310	$template_path_list[ $base_directory ] = $path_list;311	return $path_list;312}