code: protected static function braceGlob($pattern)
  	{
  		// Use glob() if possible
  		if (false === strpos($pattern, '/**/') && (\defined('GLOB_BRACE') || false === strpos($pattern, '{')))
  		{
  			return glob($pattern, \defined('GLOB_BRACE') ? GLOB_BRACE : 0);
  		}
  
  		$finder = new Finder();
  		$regex = Glob::toRegex($pattern);
  
  		// All files in the given template folder
  		$filesIterator = $finder
  			->files()
  			->followLinks()
  			->sortByName()
  			->in(\dirname($pattern))
  		;
  
  		// Match the actual regex and filter the files
  		$filesIterator = $filesIterator->filter(function (\SplFileInfo $info) use ($regex)
  		{
  			$path = $info->getPathname();
  
  			return preg_match($regex, $path) && $info->isFile();
  		});
  
  		$files = iterator_to_array($filesIterator);
  
  		return array_keys($files);
  	}
docs: Return the files matching a GLOB pattern
  
  @param string $pattern
  
  @return array