Re: Emacs Modular Configuration: the preferable way.

[Emanuel Berg]

Arthur Miller wrote:

>> All that can't possibly be less error prone than a simple
>> string concat with `format', besides what errors exactly
>> are we trying to avoid?
>
> "All that" was far less than what you had :). I do think it
> is less error prone.
>
> It lets me type less of long paths, then if I was typing and
> concating strings. As you see I have setup one directory,
> "etc", and everything is relative to that one. Instead of
> typing and concating every file name for every directory and
> file, I can use that parth as a variable. If i decide to
> change that directory I don't need to do it in 20 different
> places and re-type everything, I can just type it in one
> place. Even with search-replace I think it is more error
> prone to have it the way you do, than to have just one place
> to edit.

?

I'm not retyping any paths either, that's the whole point

      (lisp-dir  (format "%s/lisp"       emacs-dir))
      (init-dir  (format "%s/emacs-init" emacs-dir))
      (erc-dir   (format "%s/erc"        init-dir))
      (gnus-dir  (format "%s/gnus"       init-dir))
      (ide-dir   (format "%s/ide"        init-dir))
      (w3m-dir   (format "%s/w3m"        init-dir))

I retype variable names of the variables that hold them but
that's another thing, if I make a typo there Emacs should warn
me somewhere along the way.

And more than that, it is just a principle which is sound to
always uphold not duplicate the same data.

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