org-mode/lisp/ob-lob.el

113 lines
3.8 KiB
EmacsLisp

;;; ob-lob.el --- functions supporting the Library of Babel
;; Copyright (C) 2009, 2010 Free Software Foundation, Inc.
;; Author: Eric Schulte, Dan Davison
;; Keywords: literate programming, reproducible research
;; Homepage: http://orgmode.org
;; Version: 7.01trans
;; This file is part of GNU Emacs.
;; GNU Emacs 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 of the License, or
;; (at your option) any later version.
;; GNU Emacs 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. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; See the online documentation for more information
;;
;; http://orgmode.org/worg/org-contrib/babel/
;;; Code:
(require 'ob)
(require 'ob-table)
(defvar org-babel-library-of-babel nil
"Library of source-code blocks.
This is an association list. Populate the library by adding
files to `org-babel-lob-files'.")
(defcustom org-babel-lob-files '()
"Files used to populate the `org-babel-library-of-babel'.
To add files to this list use the `org-babel-lob-ingest' command."
:group 'org-babel
:type 'list)
;;;###autoload
(defun org-babel-lob-ingest (&optional file)
"Add all source-blocks defined in FILE to `org-babel-library-of-babel'."
(interactive "f")
(org-babel-map-src-blocks file
(let* ((info (org-babel-get-src-block-info))
(source-name (intern (nth 4 info))))
(when source-name
(setq org-babel-library-of-babel
(cons (cons source-name info)
(assq-delete-all source-name org-babel-library-of-babel)))))))
(defconst org-babel-lob-call-aliases '("lob" "call")
"Aliases to call a source block function.
If you change the value of this variable then your files may
become unusable by other org-babel users, and vice versa.")
(defconst org-babel-lob-one-liner-regexp
(concat
"^\\([ \t]*\\)#\\+\\(?:"
(mapconcat #'regexp-quote org-babel-lob-call-aliases "\\|")
"\\):[ \t]+\\([^\(\)\n]+\\)\(\\([^\n]*\\)\)\\(\\[.+\\]\\|\\)[ \t]*\\([^\n]*\\)")
"Regexp to match calls to predefined source block functions.")
;; functions for executing lob one-liners
;;;###autoload
(defun org-babel-lob-execute-maybe ()
"Execute a Library of Babel source block, if appropriate.
Detect if this is context for a Library Of Babel source block and
if so then run the appropriate source block from the Library."
(interactive)
(let ((info (org-babel-lob-get-info)))
(if (nth 0 info) (progn (org-babel-lob-execute info) t) nil)))
;;;###autoload
(defun org-babel-lob-get-info ()
"Return a Library of Babel function call as a string."
(let ((case-fold-search t))
(save-excursion
(beginning-of-line 1)
(if (looking-at org-babel-lob-one-liner-regexp)
(append
(mapcar #'org-babel-clean-text-properties
(list
(format "%s(%s)%s"
(match-string 2) (match-string 3) (match-string 4))
(match-string 5)))
(list (length (match-string 1))))))))
(defun org-babel-lob-execute (info)
"Execute the lob call specified by INFO."
(let ((params (org-babel-merge-params
org-babel-default-header-args
(org-babel-params-from-buffer)
(org-babel-params-from-properties)
(org-babel-parse-header-arguments
(org-babel-clean-text-properties
(concat ":var results="
(mapconcat #'identity (butlast info) " ")))))))
(org-babel-execute-src-block
nil (list "emacs-lisp" "results" params nil nil (nth 2 info)))))
(provide 'ob-lob)
;; arch-tag: ce0712c9-2147-4019-ba3f-42341b8b474b
;;; ob-lob.el ends here