contrib/lisp/ob-fomus.el

   1 ;;; ob-fomus.el --- Org-babel functions for fomus evaluation
   2
   3 ;; Copyright (C) 2011-2013 Torsten Anders
   4
   5 ;; Author: Torsten Anders
   6 ;; Keywords: literate programming, reproducible research
   7 ;; Homepage: http://orgmode.org
   8
   9 ;; This file is not part of GNU Emacs.
  10
  11 ;; This program is free software; you can redistribute it and/or modify
  12 ;; it under the terms of the GNU General Public License as published by
  13 ;; the Free Software Foundation; either version 3, or (at your option)
  14 ;; any later version.
  15 ;;
  16 ;; This program is distributed in the hope that it will be useful,
  17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ;; GNU General Public License for more details.
  20 ;;
  21 ;; You should have received a copy of the GNU General Public License
  22 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
  23 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  24 ;; Boston, MA 02110-1301, USA.
  25
  26 ;;; Commentary:
  27
  28 ;; Org-Babel support for evaluating Fomus source code.
  29 ;; For information on Fomus see http://fomus.sourceforge.net/
  30 ;;
  31 ;; This differs from most standard languages in that
  32 ;;
  33 ;; 1) there is no such thing as a "session" in fomus
  34 ;;
  35 ;; 2) we are generally only going to return results of type "file"
  36 ;;
  37 ;; 3) we are adding the "file" and "cmdline" header arguments
  38 ;;
  39 ;; 4) there are no variables (at least for now)
  40
  41 ;;; Code:
  42 (require 'ob)
  43 (require 'ob-eval)
  44
  45 (defvar org-babel-default-header-args:fomus
  46   '((:results . "file") (:exports . "results"))
  47   "Default arguments to use when evaluating a fomus source block.")
  48
  49 (defun org-babel-expand-body:fomus (body params)
  50   "Expand BODY according to PARAMS, return the expanded body."
  51   (let ((vars (mapcar #'cdr (org-babel-get-header params :var))))
  52     (mapc
  53      (lambda (pair)
  54        (let ((name (symbol-name (car pair)))
  55              (value (cdr pair)))
  56          (setq body
  57                (replace-regexp-in-string
  58                 (concat "\$" (regexp-quote name))
  59                 (if (stringp value) value (format "%S" value))
  60                 body))))
  61      vars)
  62     body))
  63
  64 (defun org-babel-execute:fomus (body params)
  65   "Execute a block of Fomus code with org-babel.
  66 This function is called by `org-babel-execute-src-block'."
  67   (let* ((result-params (cdr (assoc :result-params params)))
  68          (out-file (cdr (assoc :file params)))
  69          (cmdline (cdr (assoc :cmdline params)))
  70          (cmd (or (cdr (assoc :cmd params)) "fomus"))
  71          (in-file (org-babel-temp-file "fomus-" ".fms")))
  72     (with-temp-file in-file
  73       (insert (org-babel-expand-body:fomus body params)))
  74     ;; TMP: testing
  75     ;; (message (concat cmd
  76     ;;       " " (org-babel-process-file-name in-file)
  77     ;;       " " cmdline
  78     ;;       " -o " (org-babel-process-file-name out-file)))
  79     (org-babel-eval
  80      (concat cmd
  81              " " (org-babel-process-file-name in-file)
  82              " " cmdline
  83              " -o " (org-babel-process-file-name out-file)) "")
  84     nil)) ;; signal that output has already been written to file
  85
  86 (defun org-babel-prep-session:fomus (session params)
  87   "Return an error because Fomus does not support sessions."
  88   (error "Fomus does not support sessions"))
  89
  90 (provide 'ob-fomus)
  91
  92 ;;; ob-fomus.el ends here