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org-mode/litorgy/litorgy-shell.el
2009-03-31 16:11:41 -07:00

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;;; litorgy-shell.el --- litorgy functions for shell execution
;; Copyright (C) 2009 Eric Schulte
;; Author: 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:
;; Litorgy support for evaluating sh, bash, and zsh shells
;;; Code:
(require 'litorgy)
(defun litorgy-shell-add-interpreter (var cmds)
(set-default var cmds)
(mapc (lambda (cmd)
(setq litorgy-interpreters (cons cmd litorgy-interpreters))
(eval
`(defun ,(intern (concat "litorgy-execute:" cmd)) (body params)
,(concat "Evaluate a block of " cmd " shell with litorgy. This function is
called by `litorgy-execute-src-block'. This function is an
automatically generated wrapper for `litorgy-shell-execute'.")
(litorgy-shell-execute ,cmd body params))))
cmds))
(defcustom litorgy-shell-interpreters '("sh" "bash" "zsh")
"List of interpreters of shelling languages which can be
executed through litorgy."
:group 'litorgy
:set 'litorgy-shell-add-interpreter)
(defun litorgy-shell-execute (cmd body params)
"Run CMD on BODY obeying any options set with PARAMS."
(message (format "executing %s code block..." cmd))
(let ((vars (litorgy-reference-variables params)))
(save-window-excursion
(with-temp-buffer
(if (> (length vars) 0)
(error "currently no support for passing variables to shells"))
(insert body)
(shell-command-on-region (point-min) (point-max) cmd nil 'replace)
(buffer-string)))))
(provide 'litorgy-shell)
;;; litorgy-shell.el ends here