org-mode/litorgy/litorgy-lisp.el
Eric Schulte c294d0119d Now able to reference a table from an emacs-lisp src block.
Currently the only reference which is working is previous.

For an example try

: | 0.16 | eric | 0.12 |
: | 0.24 | 0.28 | 0.08 |
:
: #+begin_src emacs-lisp :var table=previous
: table
: #+end_src
2009-03-25 15:16:37 -07:00

87 lines
3.1 KiB
EmacsLisp

;;; litorgy-lisp.el --- litorgy functions for lisp code evaluation
;; Copyright (C) 2009 Eric Schulte, Dan Davison, Austin F. Frank
;; Author: Eric Schulte, Dan Davison, Austin F. Frank
;; 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:
;; Litorgy support for evaluating lisp code
;;; Code:
(require 'litorgy)
(litorgy-add-interpreter "emacs-lisp")
(defun litorgy-execute:emacs-lisp (body params)
"Execute a block of emacs-lisp code with litorgy. This
function is called by `litorgy-execute-src-block'."
(save-window-excursion
(let ((vars (litorgy-reference-variables params))
(print-level nil) (print-length nil) results)
(message "prefix")
(message (format "-%S-" body))
(message (format "%S" (stringp body)))
(message (format "vars = %S" vars))
(setq vars (mapcar (lambda (pair)
(list (intern (car pair))
(mapcar (lambda (row)
(mapcar #'litorgy-read-cell row))
(cdr pair))))
vars))
(message (format "let = %S" vars))
;; need to find a way of assigning the variables in vars for the
;; context in which body is executed
(message "executing emacs-lisp code block...")
(format "%S"
(eval `(let ,(mapcar (lambda (var)
`(,(car var) ',(cdr var)))
vars)
(message "inside")
(message (format "- %S -" table))
(message (format "- %S -" body))
,(read body)))))))
(defun litorgy-read-cell (cell)
"Convert the string value of CELL to a number if appropriate.
Otherwise if cell looks like a list (meaning it starts with a
'(') then read it as lisp, otherwise return it unmodified as a
string.
This is taken almost directly from `org-read-prop'."
(if (and (stringp cell) (not (equal cell "")))
(let ((out (string-to-number cell)))
(if (equal out 0)
(if (or (equal "(" (substring cell 0 1))
(equal "'" (substring cell 0 1)))
(read cell)
(if (string-match "^\\(+0\\|-0\\|0\\)$" cell)
0
(progn (set-text-properties 0 (length cell) nil cell)
cell)))
out))
cell))
(provide 'litorgy-lisp)
;;; litorgy-lisp.el ends here