Lisp Link type for Org mode

[Jonathan Arkell <jonathana@criticalmass.com>]

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Hey everyone

I've added a very simple link type to Org.  This is descendent from Sacha Chua's lisp link plugin for planner, and works the same way.

This is a great way to make active buttons inside of your org mode files.  I am not sure how well it would export however.  I'm okay with it going into the org contrib directory, or being added to one or both of the contributed lisp eval files.

Enjoy!

Jonathan Arkell
Sr. Web Developer
Inspired by Drum + Bass, Scheme, Kawaii

402 - 11 Avenue SE
Calgary, AB T2G 0Y4
t: 403.206.4377

www.criticalmass.com


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;;; org-lisp-link.el --- Link for executing lisp on click
(defconst org-lisp-link-version "0.1")
;; Copyright (c)2008 Jonathan Arkell. (by)(nc)(sa)  Some rights reserved.
;; Author: Jonathan Arkell <jonnay@jonnay.net>

;; This file is not part of GNU Emacs.

;; This program is free software; you can redistribute it and/or
;; modify it under the terms of the GNU General Public License as
;; published by the Free Software Foundation version 2.

;; This program is distributed in the hope that it will be useful, but
;; WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
;; General Public License for more details.

;; For a copy of the GNU General Public License, search the Internet,
;; or write to the Free Software Foundation, Inc., 59 Temple Place,
;; Suite 330, Boston, MA 02111-1307 USA

;;; Commentary:
;; This is decendent from Sacha Chua's lisp link plugin for planner

;;; Original Commentary:
;; Example:
;; [[lisp:/plan][Plan]] will be rendered as "Plan". Selecting the link
;; will run the plan function interactively.
;;
;; If the link is a lisp form it is evaluated non-interactively:
;; [[lisp:/(man "bash")][bash manual]] will be rendered as "bash
;; manual".  Selecting the link will show the bash man page in Emacs.

;;; Contributors:

;; Gerd Flaig fixed the docstring for `planner-lisp-browse-url'.

;; Jim Ottaway made it such that if the URL like a lisp form, read and
;; evaluate it, otherwise call it interactively as before.


;;; Installation:
;; Put org-lisp-link.el somewhere in your load-path.
;; (Use M-x show-variable RET load-path to see what your load path is.)
;; Add this to your emacs init file.
;(require 'org-lisp-link)


;;; Commands:
;;
;; Below are complete command list:
;;
;;
;;; Customizable Options:
;;
;; Below are customizable option list:
;;

;;; CHANGELOG:
;; v 0.1 - Initial release

;;; Code:

(defun org-lisp-browse-url (url)
  "If this is a LISP URL, evaluate it."
  (if (string-match "\\`\\s-*\\((.+)\\)\\s-*\\'" url)
	  (eval (read (match-string 1 url)))
	  (eval (read (concat "(call-interactively '" url ")")))))

(org-add-link-type "lisp" 'org-lisp-browse-url)

(provide 'org-lisp-link)

;;; org-lisp-link ends here

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