mirror of
https://git.savannah.gnu.org/git/emacs/org-mode.git
synced 2024-07-15 23:16:27 +00:00
58f1dbccf8
Also remove blank lines before the ";;; org*el ends here" declarations. Having a "Version" header forced us to update every file when releasing a new version of Org; it also forced us to update every file when merging Org with Emacs trunk, thus cluttering the diffs between the previously merged version and the new one with useless information. Glenn Morris suggested this in emacs-devel: http://lists.gnu.org/archive/html/emacs-devel/2011-08/msg00322.html
127 lines
4 KiB
EmacsLisp
127 lines
4 KiB
EmacsLisp
;;; ob-table.el --- support for calling org-babel functions from tables
|
|
|
|
;; Copyright (C) 2009-2011 Free Software Foundation, Inc.
|
|
|
|
;; Author: Eric Schulte
|
|
;; Keywords: literate programming, reproducible research
|
|
;; Homepage: http://orgmode.org
|
|
|
|
;; 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:
|
|
|
|
;; Should allow calling functions from org-mode tables using the
|
|
;; function `sbe' as so...
|
|
|
|
;; #+begin_src emacs-lisp :results silent
|
|
;; (defun fibbd (n) (if (< n 2) 1 (+ (fibbd (- n 1)) (fibbd (- n 2)))))
|
|
;; #+end_src
|
|
|
|
;; #+srcname: fibbd
|
|
;; #+begin_src emacs-lisp :var n=2 :results silent
|
|
;; (fibbd n)
|
|
;; #+end_src
|
|
|
|
;; | original | fibbd |
|
|
;; |----------+--------|
|
|
;; | 0 | |
|
|
;; | 1 | |
|
|
;; | 2 | |
|
|
;; | 3 | |
|
|
;; | 4 | |
|
|
;; | 5 | |
|
|
;; | 6 | |
|
|
;; | 7 | |
|
|
;; | 8 | |
|
|
;; | 9 | |
|
|
;; #+TBLFM: $2='(sbe 'fibbd (n $1))
|
|
|
|
;;; Code:
|
|
(require 'ob)
|
|
|
|
(defun org-babel-table-truncate-at-newline (string)
|
|
"Replace newline character with ellipses.
|
|
If STRING ends in a newline character, then remove the newline
|
|
character and replace it with ellipses."
|
|
(if (and (stringp string) (string-match "[\n\r]\\(.\\)?" string))
|
|
(concat (substring string 0 (match-beginning 0))
|
|
(if (match-string 1 string) "...")) string))
|
|
|
|
(defmacro sbe (source-block &rest variables)
|
|
"Return the results of calling SOURCE-BLOCK with VARIABLES.
|
|
Each element of VARIABLES should be a two
|
|
element list, whose first element is the name of the variable and
|
|
second element is a string of its value. The following call to
|
|
`sbe' would be equivalent to the following source code block.
|
|
|
|
(sbe 'source-block (n $2) (m 3))
|
|
|
|
#+begin_src emacs-lisp :var results=source-block(n=val_at_col_2, m=3) :results silent
|
|
results
|
|
#+end_src
|
|
|
|
NOTE: by default string variable names are interpreted as
|
|
references to source-code blocks, to force interpretation of a
|
|
cell's value as a string, prefix the identifier with two \"$\"s
|
|
rather than a single \"$\" (i.e. \"$$2\" instead of \"$2\" in the
|
|
example above."
|
|
(let* (quote
|
|
(variables
|
|
(mapcar
|
|
(lambda (var)
|
|
;; ensure that all cells prefixed with $'s are strings
|
|
(cons (car var)
|
|
(delq nil (mapcar
|
|
(lambda (el)
|
|
(if (eq '$ el)
|
|
(setq quote t)
|
|
(prog1 (if quote
|
|
(format "\"%s\"" el)
|
|
(org-babel-clean-text-properties el))
|
|
(setq quote nil))))
|
|
(cdr var)))))
|
|
variables)))
|
|
(unless (stringp source-block)
|
|
(setq source-block (symbol-name source-block)))
|
|
((lambda (result)
|
|
(org-babel-trim (if (stringp result) result (format "%S" result))))
|
|
(if (and source-block (> (length source-block) 0))
|
|
(let ((params
|
|
(eval `(org-babel-parse-header-arguments
|
|
(concat ":var results="
|
|
,source-block
|
|
"("
|
|
(mapconcat
|
|
(lambda (var-spec)
|
|
(if (> (length (cdr var-spec)) 1)
|
|
(format "%S='%S"
|
|
(car var-spec)
|
|
(mapcar #'read (cdr var-spec)))
|
|
(format "%S=%s"
|
|
(car var-spec) (cadr var-spec))))
|
|
',variables ", ")
|
|
")")))))
|
|
(org-babel-execute-src-block
|
|
nil (list "emacs-lisp" "results" params) '((:results . "silent"))))
|
|
""))))
|
|
(def-edebug-spec sbe (form form))
|
|
|
|
(provide 'ob-table)
|
|
|
|
|
|
|
|
;;; ob-table.el ends here
|