From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thorsten Jolitz <tjolitz@gmail.com>
Subject: Re: little elisp help?
Date: Wed, 02 Jul 2014 22:31:21 +0200
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tom <scrawler@gmail.com> writes:

> hi guys,
>
> I have this:
>
> (setq org-link-abbrev-alist
> '(("foo" . "file:/path/to/%(myfun).txt")))
>
> I'm trying to have "myfun" replace any spaces in the tag with
> underscores, but I'm not having much luck. Would someone mind giving
> me a hint?

#+begin_src emacs-lisp
(let ((cons-pair '("foo bar  loo" "file:x")))
  (replace-regexp-in-string "[[:space:]]" "_" (car cons-pair)))
#+end_src

#+results:
: foo_bar__loo

-- 
cheers,
Thorsten