SYNOPSIS
        string *get_dir_ext(string str)

DESCRIPTION
        This function takes a path as argument and returns an array of file
        names in that directory. It basically does the same as the efun
        get_dir(), but appends a slash '/' to directory filenames and '*' to
        files which are loaded.

EXAMPLES
        get_dir("/w");
        
        This returns ({ "w/" }).
        
        get_dir("/w/*");
        
        Returns the content of the directory "/w".
        
        get_dir("/room/*.c");
        
        Return all files of the directory "/room/" with the ending ".c".
        

SEE ALSO
        get_dir(E), cat(E), mkdir(E), rmdir(E)