Knowing the name of a file from the file itself

Knowing the name of a file from the file itself

[abc]

Hi everyone,

I'm a recent Emacs convert. I'm structuring my .emacs.d directory
which has become quite messy.

For that purpose, I'd like to know if it's possible to know the name
of a file and the path to it from the file itself, like in many other
languages, e.g. Ruby.

I've looked for a variable or function for this with no luck.


Thanks in advance.

Re: Knowing the name of a file from the file itself

[Andy Stewart]

Use this function 

(defun copy-buffer-file-name-as-kill(choice)
  "Copy the buffer-file-name to the kill-ring"
  (interactive "cCopy Buffer Name (F) Full, (D) Directory, (N) Name")
  (let ((new-kill-string)
        (name (if (eq major-mode 'dired-mode)
                  (dired-get-filename)
                (or (buffer-file-name) ""))))
    (cond ((eq choice ?f)
           (setq new-kill-string name))
          ((eq choice ?d)
           (setq new-kill-string (file-name-directory name)))
          ((eq choice ?n)
           (setq new-kill-string (file-name-nondirectory name)))
          (t (message "Quit")))
    (when new-kill-string
      (message "%s copied" new-kill-string)
      (kill-new new-kill-string))))

And C-y (yank) will get information your want.

abc <arcadiorubiogarcia@gmail.com> writes:

> Hi everyone,
>
> I'm a recent Emacs convert. I'm structuring my .emacs.d directory
> which has become quite messy.
>
> For that purpose, I'd like to know if it's possible to know the name
> of a file and the path to it from the file itself, like in many other
> languages, e.g. Ruby.
>
> I've looked for a variable or function for this with no luck.
>
>
> Thanks in advance.

Re: Knowing the name of a file from the file itself

[Andreas Politz]

abc wrote:
> Hi everyone,
> 
> I'm a recent Emacs convert. I'm structuring my .emacs.d directory
> which has become quite messy.
> 
> For that purpose, I'd like to know if it's possible to know the name
> of a file and the path to it from the file itself, like in many other
> languages, e.g. Ruby.
> 
> I've looked for a variable or function for this with no luck.
> 
> 
> Thanks in advance.

I think `load-file-name' is what you are looking for.


,----[ C-h v load-file-name RET ]
| load-file-name is a variable defined in `C source code'.
| Its value is nil
|
|
| Documentation:
| Full name of file being loaded by `load'.
|
`----


-ap

Re: Knowing the name of a file from the file itself

[abc]

load-file-name was exactly what I was looking for. Thank you both for
your explanations.