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mirror of https://git.savannah.gnu.org/git/emacs/org-mode.git synced 2024-11-26 07:33:39 +00:00
org-mode/lisp/ob-octave.el
Dan Davison e030d95ddb ob: language-specific changes in response to :file arg changes
These languages are capable of writing results to file; for several of
them this is their only mode of operation. These changes cause the
languages to return to ob.el either the computed result, or nil, when
they have written results to file themselves. This is in place of the
previous method of returning the output file name as a string to
ob.el.

* lisp/ob-asymptote.el (org-babel-execute:asymptote): Return nil to
signal that the intended content has been written to file.
* lisp/ob-ditaa.el (org-babel-execute:ditaa): Return nil to signal
that the intended content has been written to file.
* lisp/ob-dot.el (org-babel-execute:dot): Return nil to signal that
the intended content has been written to file.
* lisp/ob-gnuplot.el (org-babel-execute:gnuplot): Return nil to signal
that the intended content has been written to file.
* lisp/ob-latex.el (org-babel-execute:latex): Return nil to signal
that the intended content has been written to file.
* lisp/ob-mscgen.el (org-babel-execute:mscgen): Return nil to
signal that the intended content has been written to file.
* lisp/ob-octave.el (org-babel-execute:octave): Return result; not
name of output file.
* lisp/ob-plantuml.el (org-babel-execute:plantuml): Return nil to
signal that the intended content has been written to file.
* lisp/ob-python.el (org-babel-execute:python): Return result; not
name of output file.
* lisp/ob-ruby.el (org-babel-execute:ruby): Return result; not
name of output file.
* lisp/ob-sass.el (org-babel-execute:sass): Return nil if result has
been written to file
2010-12-21 14:19:24 +00:00

264 lines
9.6 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: 7.4
;; 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.")
(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, dlmwrite('%s', ans, '\\t')
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."
(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* ((session
(funcall (intern (format "org-babel-%s-initiate-session"
(if matlabp "matlab" "octave")))
(cdr (assoc :session params)) params))
(vars (mapcar #'cdr (org-babel-get-header params :var)))
(result-params (cdr (assoc :result-params params)))
(result-type (cdr (assoc :result-type params)))
(out-file (cdr (assoc :file params)))
(full-body
(org-babel-expand-body:generic
body params (org-babel-variable-assignments:octave params)))
(result (org-babel-octave-evaluate
session full-body result-type matlabp)))
(org-babel-reassemble-table
result
(org-babel-pick-name
(cdr (assoc :colname-names params)) (cdr (assoc :colnames params)))
(org-babel-pick-name
(cdr (assoc :rowname-names params)) (cdr (assoc :rownames params))))))
(defun org-babel-prep-session:matlab (session params)
"Prepare SESSION according to PARAMS."
(org-babel-prep-session:octave session params 'matlab))
(defun org-babel-variable-assignments:octave (params)
"Return list of octave statements assigning the block's variables"
(mapcar
(lambda (pair)
(format "%s=%s"
(car pair)
(org-babel-octave-var-to-octave (cdr pair))))
(mapcar #'cdr (org-babel-get-header params :var))))
(defalias 'org-babel-variable-assignments:matlab
'org-babel-variable-assignments:octave)
(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
(if (listp (car var)) "; " ",")) "]")
(format "%s" (or var "nil"))))
(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))
(var-lines (org-babel-variable-assignments:octave params)))
(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."
(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."
(if matlabp (require 'matlab) (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 &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 (org-babel-temp-file "octave-")))
(org-babel-eval
cmd
(format org-babel-octave-wrapper-method body
(org-babel-process-file-name tmp-file 'noquote)
(org-babel-process-file-name tmp-file 'noquote)))
(org-babel-octave-import-elisp-from-file tmp-file))))))
(defun org-babel-octave-evaluate-session
(session body result-type &optional matlabp)
"Evaluate BODY in SESSION."
(let* ((tmp-file (org-babel-temp-file (if matlabp "matlab-" "octave-")))
(wait-file (org-babel-temp-file "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
(org-babel-process-file-name tmp-file 'noquote)
(org-babel-process-file-name tmp-file 'noquote) wait-file) "\n")
(mapconcat
#'org-babel-chomp
(list (format org-babel-octave-wrapper-method
body
(org-babel-process-file-name tmp-file 'noquote)
(org-babel-process-file-name tmp-file 'noquote))
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 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 (org-babel-temp-file "octave-matlab-")) 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 '(16))))
(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