200 lines
6.9 KiB
EmacsLisp
200 lines
6.9 KiB
EmacsLisp
;;; org-eval-light.el --- Display result of evaluating code in various languages (light)
|
|
|
|
;; Copyright (C) 2008-2017 Free Software Foundation, Inc.
|
|
|
|
;; Author: Carsten Dominik <carsten at orgmode dot org>,
|
|
;; Eric Schulte <schulte dot eric at gmail dot com>
|
|
;; Keywords: outlines, hypermedia, calendar, wp, literate programming,
|
|
;; reproducible research
|
|
;; Homepage: http://orgmode.org
|
|
;; Version: 0.04
|
|
|
|
;; This file is not yet part of GNU Emacs.
|
|
|
|
;; 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. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
;;; Commentary:
|
|
|
|
;; This file is based off of org-eval, with the following changes.
|
|
;;
|
|
;; 1) forms are only executed manually, (allowing for the execution of
|
|
;; an entire subtree of forms)
|
|
;; 2) use the org-mode style src blocks, rather than the muse style
|
|
;; <code></code> blocks
|
|
;; 3) forms are not replaced by their outputs, but rather the output
|
|
;; is placed in the buffer immediately following the src block
|
|
;; commented by `org-eval-light-make-region-example' (when
|
|
;; evaluated with a prefix argument no output is placed in the
|
|
;; buffer)
|
|
;; 4) add defadvice to org-ctrl-c-ctrl-c so that when called inside of
|
|
;; a source block it will call `org-eval-light-current-snippet'
|
|
|
|
;;; Code:
|
|
(require 'org)
|
|
|
|
(defgroup org-eval-light nil
|
|
"Options concerning including output from commands into the Org-mode buffer."
|
|
:tag "Org Eval"
|
|
:group 'org)
|
|
|
|
(defvar org-eval-light-example-size-cutoff 10
|
|
"The number of lines under which an example is considered
|
|
'small', and is exported with the '^:' syntax instead of in a
|
|
large example block")
|
|
|
|
(defvar org-eval-light-regexp nil)
|
|
|
|
(defun org-eval-light-set-interpreters (var value)
|
|
(set-default var value)
|
|
(setq org-eval-light-regexp
|
|
(concat "#\\+begin_src \\("
|
|
(mapconcat 'regexp-quote value "\\|")
|
|
"\\)\\([^\000]+?\\)#\\+end_src")))
|
|
|
|
(defcustom org-eval-light-interpreters '("lisp" "emacs-lisp" "ruby" "shell")
|
|
"Interpreters allows for evaluation tags.
|
|
This is a list of program names (as strings) that can evaluate code and
|
|
insert the output into an Org-mode buffer. Valid choices are
|
|
|
|
lisp Interpret Emacs Lisp code and display the result
|
|
shell Pass command to the shell and display the result
|
|
perl The perl interpreter
|
|
python Thy python interpreter
|
|
ruby The ruby interpreter"
|
|
:group 'org-eval-light
|
|
:set 'org-eval-light-set-interpreters
|
|
:type '(set :greedy t
|
|
(const "lisp")
|
|
(const "emacs-lisp")
|
|
(const "perl")
|
|
(const "python")
|
|
(const "ruby")
|
|
(const "shell")))
|
|
|
|
;;; functions
|
|
(defun org-eval-light-inside-snippet ()
|
|
(interactive)
|
|
(save-excursion
|
|
(let ((case-fold-search t)
|
|
(start-re "^#\\+begin_src\\( \\([^ \t\n]+\\)\\)?.*\n")
|
|
(end-re "\n#\\+end_src")
|
|
(pos (point))
|
|
beg end)
|
|
(if (and (setq beg (re-search-backward start-re nil t))
|
|
(setq end (re-search-forward end-re nil t))
|
|
(<= beg pos) (>= end pos))
|
|
t))))
|
|
|
|
(defun org-eval-light-make-region-example (beg end)
|
|
"Comment out region using either the '^:' or the BEGIN_EXAMPLE
|
|
syntax based on the size of the region as compared to
|
|
`org-eval-light-example-size-cutoff'."
|
|
(interactive "*r")
|
|
(let ((size (abs (- (line-number-at-pos end)
|
|
(line-number-at-pos beg)))))
|
|
(if (= size 0)
|
|
(let ((result (buffer-substring beg end)))
|
|
(delete-region beg end)
|
|
(insert (concat ": " result)))
|
|
(if (<= size org-eval-light-example-size-cutoff)
|
|
(save-excursion
|
|
(goto-char beg)
|
|
(dotimes (n size)
|
|
(move-beginning-of-line 1) (insert ": ") (forward-line 1)))
|
|
(let ((result (buffer-substring beg end)))
|
|
(delete-region beg end)
|
|
(insert (concat "#+BEGIN_EXAMPLE\n" result "#+END_EXAMPLE\n")))))))
|
|
|
|
(defun org-eval-light-current-snippet (&optional arg)
|
|
"Execute the current #+begin_src #+end_src block, and dump the
|
|
results into the buffer immediately following the src block,
|
|
commented by `org-eval-light-make-region-example'."
|
|
(interactive "P")
|
|
(let ((line (org-current-line))
|
|
(case-fold-search t)
|
|
(info (org-edit-src-find-region-and-lang))
|
|
beg end lang result)
|
|
(setq beg (nth 0 info)
|
|
end (nth 1 info)
|
|
lang (nth 2 info))
|
|
(unless (member lang org-eval-light-interpreters)
|
|
(error "Language is not in `org-eval-light-interpreters': %s" lang))
|
|
(goto-line line)
|
|
(setq result (org-eval-light-code lang (buffer-substring beg end)))
|
|
(unless arg
|
|
(save-excursion
|
|
(re-search-forward "^#\\+end_src" nil t) (open-line 1) (forward-char 2)
|
|
(let ((beg (point))
|
|
(end (progn (insert result)
|
|
(point))))
|
|
(message (format "from %S %S" beg end))
|
|
(org-eval-light-make-region-example beg end))))))
|
|
|
|
(defun org-eval-light-eval-subtree (&optional arg)
|
|
"Replace EVAL snippets in the entire subtree."
|
|
(interactive "P")
|
|
(save-excursion
|
|
(org-narrow-to-subtree)
|
|
(goto-char (point-min))
|
|
(while (re-search-forward org-eval-light-regexp nil t)
|
|
(org-eval-light-current-snippet arg))
|
|
(widen)))
|
|
|
|
(defun org-eval-light-code (interpreter code)
|
|
(cond
|
|
((member interpreter '("lisp" "emacs-lisp"))
|
|
(org-eval-light-lisp (concat "(progn\n" code "\n)")))
|
|
((equal interpreter "shell")
|
|
(shell-command-to-string code))
|
|
((member interpreter '("perl" "python" "ruby"))
|
|
(org-eval-light-run (executable-find interpreter) code))
|
|
(t (error "Cannot evaluate code type %s" interpreter))))
|
|
|
|
(defun org-eval-light-lisp (form)
|
|
"Evaluate the given form and return the result as a string."
|
|
(require 'pp)
|
|
(save-match-data
|
|
(condition-case err
|
|
(let ((object (eval (read form))))
|
|
(cond
|
|
((stringp object) object)
|
|
((and (listp object)
|
|
(not (eq object nil)))
|
|
(let ((string (pp-to-string object)))
|
|
(substring string 0 (1- (length string)))))
|
|
((numberp object)
|
|
(number-to-string object))
|
|
((eq object nil) "")
|
|
(t
|
|
(pp-to-string object))))
|
|
(error
|
|
(org-display-warning (format "%s: Error evaluating %s: %s"
|
|
"???" form err))
|
|
"; INVALID LISP CODE"))))
|
|
|
|
(defun org-eval-light-run (cmd code)
|
|
(with-temp-buffer
|
|
(insert code)
|
|
(shell-command-on-region (point-min) (point-max) cmd nil 'replace)
|
|
(buffer-string)))
|
|
|
|
(defadvice org-ctrl-c-ctrl-c (around org-cc-eval-source activate)
|
|
(if (org-eval-light-inside-snippet)
|
|
(call-interactively 'org-eval-light-current-snippet)
|
|
ad-do-it))
|
|
|
|
(provide 'org-eval-light)
|
|
|
|
;;; org-eval-light.el ends here
|