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org-mode/lisp/ob-octave.el

267 lines
9.8 KiB
EmacsLisp

;;; ob-octave.el --- org-babel functions for octave and matlab evaluation
;; Copyright (C) 2010 Free Software Foundation, Inc.
;; Author: Dan Davison
;; Keywords: literate programming, reproducible research
;; Homepage: http://orgmode.org
;; Version: 7.01trans
;; 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:
;;; Requirements:
;; octave
;; octave-mode.el and octave-inf.el come with GNU emacs
;;; Code:
(require 'ob)
(require 'ob-ref)
(require 'ob-comint)
(require 'ob-eval)
(eval-when-compile (require 'cl))
(declare-function matlab-shell "ext:matlab-mode")
(declare-function matlab-shell-run-region "ext:matlab-mode")
(defvar org-babel-default-header-args:matlab '())
(defvar org-babel-default-header-args:octave '())
(defvar org-babel-matlab-shell-command "matlab -nosplash"
"Shell command to run matlab as an external process.")
(defvar org-babel-octave-shell-command "octave -q"
"Shell command to run octave as an external process.")
(defun org-babel-expand-body:matlab (body params &optional processed-params)
"Expand BODY according to PARAMS, return the expanded body."
(org-babel-expand-body:octave body params processed-params))
(defun org-babel-expand-body:octave (body params &optional processed-params)
"Expand BODY according to PARAMS, return the expanded body."
(let ((vars (nth 1 (or processed-params (org-babel-process-params params)))))
(concat
(mapconcat
(lambda (pair)
(format "%s=%s"
(car pair)
(org-babel-octave-var-to-octave (cdr pair))))
vars "\n") "\n" body "\n")))
(defvar org-babel-matlab-with-emacs-link nil
"If non-nil use matlab-shell-run-region for session evaluation.
This will use EmacsLink if (matlab-with-emacs-link) evaluates
to a non-nil value.")
(defvar org-babel-matlab-emacs-link-wrapper-method
"%s
if ischar(ans), fid = fopen('%s', 'w'); fprintf(fid, '%%s\\n', ans); fclose(fid);
else, save -ascii %s ans
end
delete('%s')
")
(defvar org-babel-octave-wrapper-method
"%s
if ischar(ans), fid = fopen('%s', 'w'); fprintf(fid, '%%s\\n', ans); fclose(fid);
else, save -ascii %s ans
end")
(defvar org-babel-octave-eoe-indicator "\'org_babel_eoe\'")
(defvar org-babel-octave-eoe-output "ans = org_babel_eoe")
(defun org-babel-execute:matlab (body params)
"Execute a block of matlab code with Babel."
(require 'matlab)
(org-babel-execute:octave body params 'matlab))
(defun org-babel-execute:octave (body params &optional matlabp)
"Execute a block of octave code with Babel."
(let* ((processed-params (org-babel-process-params params))
(session
(funcall (intern (format "org-babel-%s-initiate-session"
(if matlabp "matlab" "octave")))
(nth 0 processed-params) params))
(vars (nth 1 processed-params))
(result-params (nth 2 processed-params))
(result-type (nth 3 processed-params))
(out-file (cdr (assoc :file params)))
(augmented-body
(org-babel-expand-body:octave body params processed-params))
(result (org-babel-octave-evaluate
session augmented-body result-type matlabp)))
(or out-file
(org-babel-reassemble-table
result
(org-babel-pick-name
(nth 4 processed-params) (cdr (assoc :colnames params)))
(org-babel-pick-name
(nth 5 processed-params) (cdr (assoc :rownames params)))))))
(defun org-babel-prep-session:matlab (session params)
"Prepare SESSION according to PARAMS."
(require 'matlab)
(org-babel-prep-session:octave session params 'matlab))
(defun org-babel-octave-var-to-octave (var)
"Convert an emacs-lisp value into an octave variable.
Converts an emacs-lisp variable into a string of octave code
specifying a variable of the same value."
(if (listp var)
(concat "[" (mapconcat #'org-babel-octave-var-to-octave var ", ") "]")
(format "%S" var)))
(defun org-babel-prep-session:octave (session params &optional matlabp)
"Prepare SESSION according to the header arguments specified in PARAMS."
(let* ((session (org-babel-octave-initiate-session session params matlabp))
(vars (org-babel-ref-variables params))
(var-lines (mapcar
(lambda (pair)
(format "%s=%s"
(car pair)
(org-babel-octave-var-to-octave (cdr pair))))
vars)))
(org-babel-comint-in-buffer session
(mapc (lambda (var)
(end-of-line 1) (insert var) (comint-send-input nil t)
(org-babel-comint-wait-for-output session)) var-lines))
session))
(defun org-babel-matlab-initiate-session (&optional session params)
"Create a matlab inferior process buffer.
If there is not a current inferior-process-buffer in SESSION then
create. Return the initialized session."
(require 'matlab)
(org-babel-octave-initiate-session session params 'matlab))
(defun org-babel-octave-initiate-session (&optional session params matlabp)
"Create an octave inferior process buffer.
If there is not a current inferior-process-buffer in SESSION then
create. Return the initialized session."
(require 'octave-inf)
(unless (string= session "none")
(let ((session (or session
(if matlabp "*Inferior Matlab*" "*Inferior Octave*"))))
(if (org-babel-comint-buffer-livep session) session
(save-window-excursion
(if matlabp (unless org-babel-matlab-with-emacs-link (matlab-shell))
(run-octave))
(rename-buffer (if (bufferp session) (buffer-name session)
(if (stringp session) session (buffer-name))))
(current-buffer))))))
(defun org-babel-octave-evaluate
(session body result-type lang &optional matlabp)
"Pass BODY to the octave process in SESSION.
If RESULT-TYPE equals 'output then return the outputs of the
statements in BODY, if RESULT-TYPE equals 'value then return the
value of the last statement in BODY, as elisp."
(if session
(org-babel-octave-evaluate-session session body result-type matlabp)
(org-babel-octave-evaluate-external-process body result-type matlabp)))
(defun org-babel-octave-evaluate-external-process (body result-type matlabp)
"Evaluate BODY in an external octave process."
(let ((cmd (if matlabp
org-babel-matlab-shell-command
org-babel-octave-shell-command)))
(case result-type
(output (org-babel-eval cmd body))
(value (let ((tmp-file (make-temp-file "org-babel-results-")))
(org-babel-eval
cmd
(format org-babel-octave-wrapper-method body tmp-file tmp-file))
(org-babel-eval-read-file tmp-file))))))
(defun org-babel-octave-evaluate-session
(session body result-type &optional matlabp)
"Evaluate BODY in SESSION."
(let* ((tmp-file (make-temp-file "org-babel-results-"))
(wait-file (make-temp-file "org-babel-matlab-emacs-link-wait-signal-"))
(full-body
(case result-type
(output
(mapconcat
#'org-babel-chomp
(list body org-babel-octave-eoe-indicator) "\n"))
(value
(if (and matlabp org-babel-matlab-with-emacs-link)
(concat
(format org-babel-matlab-emacs-link-wrapper-method
body tmp-file tmp-file wait-file) "\n")
(mapconcat
#'org-babel-chomp
(list (format org-babel-octave-wrapper-method
body tmp-file tmp-file)
org-babel-octave-eoe-indicator) "\n")))))
(raw (if (and matlabp org-babel-matlab-with-emacs-link)
(save-window-excursion
(with-temp-buffer
(insert full-body)
(write-region "" 'ignored wait-file nil nil nil 'excl)
(matlab-shell-run-region (point-min) (point-max))
(message "Waiting for Matlab Emacs Link")
(while (file-exists-p wait-file) (sit-for 0.01))
"")) ;; matlab-shell-run-region doesn't seem to
;; make *matlab* buffer contents easily
;; available, so :results output currently
;; won't work
(org-babel-comint-with-output
(session
(if matlabp
org-babel-octave-eoe-indicator
org-babel-octave-eoe-output)
t full-body)
(insert full-body) (comint-send-input nil t)))) results)
(case result-type
(value
(org-babel-octave-import-elisp-from-file
(org-babel-maybe-remote-file tmp-file)))
(output
(progn
(setq results
(if matlabp
(cdr (reverse (delq "" (mapcar
#'org-babel-octave-read-string
(mapcar #'org-babel-trim raw)))))
(cdr (member org-babel-octave-eoe-output
(reverse (mapcar
#'org-babel-octave-read-string
(mapcar #'org-babel-trim raw)))))))
(mapconcat #'identity (reverse results) "\n"))))))
(defun org-babel-octave-import-elisp-from-file (file-name)
"Import data from FILE-NAME.
This removes initial blank and comment lines and then calls
`org-babel-import-elisp-from-file'."
(let ((temp-file (make-temp-file "org-babel-results-")) beg end)
(with-temp-file temp-file
(insert-file-contents file-name)
(re-search-forward "^[ \t]*[^# \t]" nil t)
(if (< (setq beg (point-min))
(setq end (point-at-bol)))
(delete-region beg end)))
(org-babel-import-elisp-from-file temp-file)))
(defun org-babel-octave-read-string (string)
"Strip \\\"s from around octave string"
(if (string-match "^\"\\([^\000]+\\)\"$" string)
(match-string 1 string)
string))
(provide 'ob-octave)
;; arch-tag: d8e5f68b-ba13-440a-a495-b653e989e704
;;; ob-octave.el ends here