mirror of
https://git.savannah.gnu.org/git/emacs/org-mode.git
synced 2024-11-22 07:09:47 +00:00
135 lines
4.6 KiB
EmacsLisp
135 lines
4.6 KiB
EmacsLisp
;;; ob-scheme.el --- org-babel functions for Scheme
|
|
|
|
;; Copyright (C) 2010-2013 Free Software Foundation, Inc.
|
|
|
|
;; Author: Eric Schulte
|
|
;; Keywords: literate programming, reproducible research, scheme
|
|
;; 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:
|
|
|
|
;; Now working with SBCL for both session and external evaluation.
|
|
;;
|
|
;; This certainly isn't optimally robust, but it seems to be working
|
|
;; for the basic use cases.
|
|
|
|
;;; Requirements:
|
|
|
|
;; - a working scheme implementation
|
|
;; (e.g. guile http://www.gnu.org/software/guile/guile.html)
|
|
;;
|
|
;; - for session based evaluation cmuscheme.el is required which is
|
|
;; included in Emacs
|
|
|
|
;;; Code:
|
|
(require 'ob)
|
|
(eval-when-compile (require 'cl))
|
|
|
|
(declare-function run-scheme "ext:cmuscheme" (cmd))
|
|
|
|
(defvar org-babel-default-header-args:scheme '()
|
|
"Default header arguments for scheme code blocks.")
|
|
|
|
(defvar org-babel-scheme-eoe "org-babel-scheme-eoe"
|
|
"String to indicate that evaluation has completed.")
|
|
|
|
(defcustom org-babel-scheme-cmd "guile"
|
|
"Name of command used to evaluate scheme blocks."
|
|
:group 'org-babel
|
|
:version "24.1"
|
|
:type 'string)
|
|
|
|
(defun org-babel-expand-body:scheme (body params)
|
|
"Expand BODY according to PARAMS, return the expanded body."
|
|
(let ((vars (mapcar #'cdr (org-babel-get-header params :var))))
|
|
(if (> (length vars) 0)
|
|
(concat "(let ("
|
|
(mapconcat
|
|
(lambda (var) (format "%S" (print `(,(car var) ',(cdr var)))))
|
|
vars "\n ")
|
|
")\n" body ")")
|
|
body)))
|
|
|
|
(defvar scheme-program-name)
|
|
(defun org-babel-execute:scheme (body params)
|
|
"Execute a block of Scheme code with org-babel.
|
|
This function is called by `org-babel-execute-src-block'"
|
|
(let* ((result-type (cdr (assoc :result-type params)))
|
|
(org-babel-scheme-cmd (or (cdr (assoc :scheme params))
|
|
org-babel-scheme-cmd))
|
|
(full-body (org-babel-expand-body:scheme body params)))
|
|
(read
|
|
(if (not (string= (cdr (assoc :session params)) "none"))
|
|
;; session evaluation
|
|
(let ((session (org-babel-prep-session:scheme
|
|
(cdr (assoc :session params)) params)))
|
|
(org-babel-comint-with-output
|
|
(session (format "%S" org-babel-scheme-eoe) t body)
|
|
(mapc
|
|
(lambda (line)
|
|
(insert (org-babel-chomp line)) (comint-send-input nil t))
|
|
(list body (format "%S" org-babel-scheme-eoe)))))
|
|
;; external evaluation
|
|
(let ((script-file (org-babel-temp-file "scheme-script-")))
|
|
(with-temp-file script-file
|
|
(insert
|
|
;; return the value or the output
|
|
(if (string= result-type "value")
|
|
(format "(display %s)" full-body)
|
|
full-body)))
|
|
(org-babel-eval
|
|
(format "%s %s" org-babel-scheme-cmd
|
|
(org-babel-process-file-name script-file)) ""))))))
|
|
|
|
(defun org-babel-prep-session:scheme (session params)
|
|
"Prepare SESSION according to the header arguments specified in PARAMS."
|
|
(let* ((session (org-babel-scheme-initiate-session session))
|
|
(vars (mapcar #'cdr (org-babel-get-header params :var)))
|
|
(var-lines
|
|
(mapcar
|
|
(lambda (var) (format "%S" (print `(define ,(car var) ',(cdr var)))))
|
|
vars)))
|
|
(when session
|
|
(org-babel-comint-in-buffer session
|
|
(sit-for .5) (goto-char (point-max))
|
|
(mapc (lambda (var)
|
|
(insert var) (comint-send-input nil t)
|
|
(org-babel-comint-wait-for-output session)
|
|
(sit-for .1) (goto-char (point-max))) var-lines)))
|
|
session))
|
|
|
|
(defun org-babel-scheme-initiate-session (&optional session)
|
|
"If there is not a current inferior-process-buffer in SESSION
|
|
then create. Return the initialized session."
|
|
(require 'cmuscheme)
|
|
(unless (string= session "none")
|
|
(let ((session-buffer (save-window-excursion
|
|
(run-scheme org-babel-scheme-cmd)
|
|
(rename-buffer session)
|
|
(current-buffer))))
|
|
(if (org-babel-comint-buffer-livep session-buffer)
|
|
(progn (sit-for .25) session-buffer)
|
|
(sit-for .5)
|
|
(org-babel-scheme-initiate-session session)))))
|
|
|
|
(provide 'ob-scheme)
|
|
|
|
|
|
|
|
;;; ob-scheme.el ends here
|