Speedbar and dot files

[Angelo Graziosi]

I use a package from MELPA, "sr-sppedbar" which uses the Emacs Speedbar, 
but the last does not show the dot files/directories (.emacs.d, .bashrc 
etc.).

Even if one adds

(setq speedbar-show-unknown-files t)

in the init file, the above files/directoris are not shown.

On the WEB I found this discussion:

http://stackoverflow.com/questions/5135209/show-hidden-files-in-speedbar

which suggest to use

(setq speedbar-directory-unshown-regexp 
"^\\(CVS\\|RCS\\|SCCS\\|\\.\\.*$\\)\\'")

in the init file, and indeed it seems to work.

Now, I wonder if you can do better adding an option, say 
"speedbar-show-all", so that when one use

(setq speedbar-show-all t)


*ALL* but really *ALL* is shown in the Speedbar.


TIA,
 Angelo.