Re: About `name' in loadup.el

[Xue Fuqiao]

On Sun, 10 Mar 2013 20:00:38 +0000
Andy Moreton <andrewjmoreton@gmail.com> wrote:

> >> >> > In lisp/loadup.el:
> >> >> > 
> >> >> >   (let ((name (concat "emacs-" emacs-version)))
> >> >> >     (while (string-match "[^-+_.a-zA-Z0-9]+" name)
> >> >> >       (setq name (concat (downcase (substring name 0 (match-beginning 
> >> >> > 0)))
> >> >> >                      "-"
> >> >> >                      (substring name (match-end 0)))))
> >> >> >     (message "Adding name %s" name)
> >> >> >     (add-name-to-file "emacs" name t))
[...]
> >> >> > And when will characters other than "-+_.a-zA-Z0-9" be in
> >> >> > `emacs-version'?
[...]

> >> So it is stripping stuff.  

> > I see.  It makes the program more robust, isn't it?

> The name is used to create a hardlink, so to avoid problems it should
> only contain characters that are allowed in portable filenames. This
> means removing the non-portable characters and replacing them with
> something that all filesystems should be able to cope with.

Thanks.

-- 
Best regards, Xue Fuqiao.
http://www.emacswiki.org/emacs/XueFuqiao