mirror of
https://git.savannah.gnu.org/git/emacs/org-mode.git
synced 2024-09-12 21:10:10 +00:00
119 lines
3.9 KiB
EmacsLisp
119 lines
3.9 KiB
EmacsLisp
;;; litorgy-R.el --- litorgy functions for R code evaluation
|
|
|
|
;; Copyright (C) 2009 Eric Schulte, Dan Davison, Austin F. Frank
|
|
|
|
;; Author: Eric Schulte, Dan Davison, Austin F. Frank
|
|
;; 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 R code
|
|
|
|
;;; Code:
|
|
(require 'litorgy)
|
|
|
|
(litorgy-add-interpreter "R")
|
|
|
|
(defun litorgy-execute:R (body params)
|
|
"Execute a block of R code with litorgy. This function is
|
|
called by `litorgy-execute-src-block'."
|
|
(let (results)
|
|
(message "executing R code block...")
|
|
(litorgy-initiate-R-buffer)
|
|
(mapc (lambda (line) (litorgy-R-input-command line)) (butlast (split-string body "[\r\n]")))
|
|
(litorgy-R-last-output)
|
|
;; ;; using litorgy-R-region-to-string
|
|
;; (with-temp-buffer
|
|
;; (insert body)
|
|
;; (setq results (litorgy-R-region-to-string (point-min) (point-max)))
|
|
;; (message "finished executing R code block")
|
|
;; results)
|
|
))
|
|
|
|
;; Maybe the following be replaced with a method using `ess-execute',
|
|
;; I went with the following functions because I wrote them and they
|
|
;; are what I know
|
|
;;
|
|
;; (not the best reasons for making design decisions)
|
|
|
|
(defvar litorgy-R-buffer nil
|
|
"Holds the buffer for the current R process")
|
|
|
|
(defun litorgy-initiate-R-buffer ()
|
|
"If there is not a current R process then create one."
|
|
(unless (and (buffer-live-p litorgy-R-buffer) (get-buffer litorgy-R-buffer))
|
|
(save-excursion
|
|
(R)
|
|
(setf litorgy-R-buffer (current-buffer))
|
|
(litorgy-R-wait-for-output)
|
|
(litorgy-R-input-command ""))))
|
|
|
|
(defun litorgy-R-command-to-string (command)
|
|
"Send a command to R, and return the results as a string."
|
|
(litorgy-R-input-command command)
|
|
(litorgy-R-last-output))
|
|
|
|
(defun litorgy-R-input-command (command)
|
|
"Pass COMMAND to the R process running in `litorgy-R-buffer'."
|
|
(save-excursion
|
|
(save-match-data
|
|
(set-buffer litorgy-R-buffer)
|
|
(goto-char (process-mark (get-buffer-process (current-buffer))))
|
|
(insert command)
|
|
(comint-send-input)
|
|
(litorgy-R-wait-for-output))))
|
|
|
|
(defun litorgy-R-region-to-string (start end)
|
|
"Send a region to R, and return the results as a string."
|
|
(interactive "r")
|
|
(comint-send-region (get-buffer-process litorgy-R-buffer) start end)
|
|
(litorgy-R-wait-for-output)
|
|
(litorgy-R-last-output))
|
|
|
|
(defun litorgy-R-wait-for-output ()
|
|
"Wait until output arrives"
|
|
(save-excursion
|
|
(save-match-data
|
|
(set-buffer litorgy-R-buffer)
|
|
(while (progn
|
|
(goto-char comint-last-input-end)
|
|
(not (re-search-forward comint-prompt-regexp nil t)))
|
|
(accept-process-output (get-buffer-process (current-buffer)))))))
|
|
|
|
(defun litorgy-R-last-output ()
|
|
"Return the last R output as a string"
|
|
(save-excursion
|
|
(save-match-data
|
|
(set-buffer litorgy-R-buffer)
|
|
(goto-char (process-mark (get-buffer-process (current-buffer))))
|
|
(forward-line 0)
|
|
(let ((raw (buffer-substring comint-last-input-end (- (point) 1))))
|
|
(if (string-match "\n" raw)
|
|
raw
|
|
(and (string-match "\\[[[:digit:]+]\\] *\\(.*\\)$" raw)
|
|
(message raw)
|
|
(message (match-string 1 raw))
|
|
(match-string 1 raw)))))))
|
|
|
|
(provide 'litorgy-R)
|
|
;;; litorgy-R.el ends here
|