Starting to create `library of babel' branch.

This is intended to provide off-the-shelf data plotting and analysis
functions. Current idea is to introduce a new line, perhaps something
like #+babel or #+babel_lib, which will reference (a) some data
and (b) a source block to apply to the data. Code being stolen from
org-babel.el (conceivably some abstraction of some of those functions
could be done to avoid code duplication).

library-of-babel.org

@@ -0,0 +1,15 @@
+#+title: The Library of Babel --- off-the-shelf functions for data analysis and plotting using org-babel
+#+SEQ_TODO: TODO PROPOSED | DONE DEFERRED REJECTED
+#+OPTIONS: H:3 num:nil toc:t
+#+STARTUP: odd hideblocks
+
+[[http://downlode.org/Etext/library_of_babel.html][Full text of Borges short story]]
+
+* Plotting code
+  Plot column 2 (y axis) against column 1 (x axis). Columns 3 and beyond, if present, are ignored.
+#+srcname: plot
+#+begin_src R :var xy=__data__
+plot(xy)
+#+end_src
+
+[[file:/tmp/tmp.org][tem org file]]

lisp/org-babel-lob.el

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+;;; org-babel-lob.el --- The Library of Babel: off-the-shelf functions for data analysis and plotting using org-babel
+
+;; Copyright (C) 2009 Dan Davison, Eric Schulte
+
+;; Author: Dan Davison, Eric Schulte
+;; Keywords: literate programming, reproducible research
+;; Homepage: http://orgmode.org
+;; Version: 0.01
+
+;;; License:
+
+;; 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; either version 3, or (at your option)
+;; any later version.
+;;
+;; 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.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs; see the file COPYING.  If not, write to the
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
+
+;;; Commentary:
+
+;; See org-babel.org in the parent directory for more information
+
+;;; Code:
+(require 'org)
+
+(defvar org-babel-lob-regexp
+  (concat "#\\+babel[ \t]*"
+	  "\\([ \t]+\\([^\n]+\\)\\)?\n") ;; match header arguments
+  "Regexp used to test when on a babel library line")
+
+(defun org-babel-lob-execute-maybe ()
+  "Detect if this is a babel library line and if so
+then run `org-babel-lob-execute'."
+  (interactive)
+  (let ((info (org-babel-get-src-block-info)))
+    (if info (progn (org-babel-execute-src-block current-prefix-arg info) t) nil)))
+
+(add-hook 'org-ctrl-c-ctrl-c-hook 'org-babel-lob-call)
+
+(defun org-babel-lob-execute ()
+  "Execute an org-babel library function."
+  (interactive)
+  
+
+
+(provide 'org-babel-lob)