mirror of
https://git.savannah.gnu.org/git/emacs/org-mode.git
synced 2024-12-24 10:38:41 +00:00
314 lines
11 KiB
EmacsLisp
314 lines
11 KiB
EmacsLisp
;;; ob-exp.el --- Exportation of org-babel source blocks
|
|
|
|
;; Copyright (C) 2009, 2010 Free Software Foundation, Inc.
|
|
|
|
;; Author: Eric Schulte, 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:
|
|
|
|
;; See the online documentation for more information
|
|
;;
|
|
;; http://orgmode.org/worg/org-contrib/babel/
|
|
|
|
;;; Code:
|
|
(require 'ob)
|
|
(require 'org-exp-blocks)
|
|
(eval-when-compile
|
|
(require 'cl))
|
|
|
|
(defvar obe-marker nil)
|
|
(defvar org-current-export-file)
|
|
(defvar org-babel-lob-one-liner-regexp)
|
|
(defvar org-babel-ref-split-regexp)
|
|
(declare-function org-babel-lob-get-info "ob-lob" ())
|
|
(declare-function org-babel-ref-literal "ob-ref" (ref))
|
|
|
|
(add-to-list 'org-export-interblocks '(src org-babel-exp-inline-src-blocks))
|
|
(add-to-list 'org-export-interblocks '(lob org-babel-exp-lob-one-liners))
|
|
(add-hook 'org-export-blocks-postblock-hook 'org-exp-res/src-name-cleanup)
|
|
|
|
(org-export-blocks-add-block '(src org-babel-exp-src-blocks nil))
|
|
|
|
(defcustom org-export-babel-evaluate t
|
|
"Switch controlling code evaluation during export.
|
|
When set to nil no code will be exported as part of the export
|
|
process."
|
|
:group 'org-babel
|
|
:type 'boolean)
|
|
(put 'org-export-babel-evaluate 'safe-local-variable (lambda (x) (eq x nil)))
|
|
|
|
(defvar org-babel-function-def-export-keyword "function"
|
|
"The keyword to substitute for the source name line on export.
|
|
When exporting a source block function, this keyword will
|
|
appear in the exported version in the place of source name
|
|
line. A source block is considered to be a source block function
|
|
if the source name is present and is followed by a parenthesized
|
|
argument list. The parentheses may be empty or contain
|
|
whitespace. An example is the following which generates n random
|
|
\(uniform) numbers.
|
|
|
|
#+source: rand(n)
|
|
#+begin_src R
|
|
runif(n)
|
|
#+end_src")
|
|
|
|
(defvar org-babel-function-def-export-indent 4
|
|
"Number of characters to indent a source block on export.
|
|
When exporting a source block function, the block contents will
|
|
be indented by this many characters. See
|
|
`org-babel-function-def-export-name' for the definition of a
|
|
source block function.")
|
|
|
|
(defun org-babel-exp-src-blocks (body &rest headers)
|
|
"Process source block for export.
|
|
Depending on the 'export' headers argument in replace the source
|
|
code block with...
|
|
|
|
both ---- display the code and the results
|
|
|
|
code ---- the default, display the code inside the block but do
|
|
not process
|
|
|
|
results - just like none only the block is run on export ensuring
|
|
that it's results are present in the org-mode buffer
|
|
|
|
none ----- do not display either code or results upon export"
|
|
(interactive)
|
|
(message "org-babel-exp processing...")
|
|
(save-excursion
|
|
(goto-char (match-beginning 0))
|
|
(let* ((info (org-babel-get-src-block-info))
|
|
(params (nth 2 info)))
|
|
;; bail if we couldn't get any info from the block
|
|
(when info
|
|
;; expand noweb references in the original file
|
|
(setf (nth 1 info)
|
|
(if (and (cdr (assoc :noweb params))
|
|
(string= "yes" (cdr (assoc :noweb params))))
|
|
(org-babel-expand-noweb-references
|
|
info (get-file-buffer org-current-export-file))
|
|
(nth 1 info))))
|
|
(org-babel-exp-do-export info 'block))))
|
|
|
|
(defun org-babel-exp-inline-src-blocks (start end)
|
|
"Process inline source blocks between START and END for export.
|
|
See `org-babel-exp-src-blocks' for export options, currently the
|
|
options and are taken from `org-babel-default-inline-header-args'."
|
|
(interactive)
|
|
(save-excursion
|
|
(goto-char start)
|
|
(while (and (< (point) end)
|
|
(re-search-forward org-babel-inline-src-block-regexp end t))
|
|
(let* ((info (save-match-data (org-babel-parse-inline-src-block-match)))
|
|
(params (nth 2 info))
|
|
(replacement
|
|
(save-match-data
|
|
(if (org-babel-in-example-or-verbatim)
|
|
(buffer-substring (match-beginning 0) (match-end 0))
|
|
;; expand noweb references in the original file
|
|
(setf (nth 1 info)
|
|
(if (and (cdr (assoc :noweb params))
|
|
(string= "yes" (cdr (assoc :noweb params))))
|
|
(org-babel-expand-noweb-references
|
|
info (get-file-buffer org-current-export-file))
|
|
(nth 1 info)))
|
|
(org-babel-exp-do-export info 'inline)))))
|
|
(setq end (+ end (- (length replacement) (length (match-string 1)))))
|
|
(replace-match replacement t t nil 1)))))
|
|
|
|
(defun org-exp-res/src-name-cleanup ()
|
|
"Clean up #+results and #+srcname lines for export.
|
|
This function should only be called after all block processing
|
|
has taken place."
|
|
(interactive)
|
|
(save-excursion
|
|
(goto-char (point-min))
|
|
(while (org-re-search-forward-unprotected
|
|
(concat
|
|
"\\("org-babel-src-name-regexp"\\|"org-babel-result-regexp"\\)")
|
|
nil t)
|
|
(delete-region
|
|
(progn (beginning-of-line) (point))
|
|
(progn (end-of-line) (+ 1 (point)))))))
|
|
|
|
(defun org-babel-in-example-or-verbatim ()
|
|
"Return true if point is in example or verbatim code.
|
|
Example and verbatim code include escaped portions of
|
|
an org-mode buffer code that should be treated as normal
|
|
org-mode text."
|
|
(or (org-in-indented-comment-line)
|
|
(save-excursion
|
|
(save-match-data
|
|
(goto-char (point-at-bol))
|
|
(looking-at "[ \t]*:[ \t]")))
|
|
(org-in-regexps-block-p "^[ \t]*#\\+begin_src" "^[ \t]*#\\+end_src")))
|
|
|
|
(defun org-babel-exp-lob-one-liners (start end)
|
|
"Process Library of Babel calls between START and END for export.
|
|
See `org-babel-exp-src-blocks' for export options. Currently the
|
|
options are taken from `org-babel-default-header-args'."
|
|
(interactive)
|
|
(let (replacement)
|
|
(save-excursion
|
|
(goto-char start)
|
|
(while (and (< (point) end)
|
|
(re-search-forward org-babel-lob-one-liner-regexp nil t))
|
|
(setq replacement
|
|
(let ((lob-info (org-babel-lob-get-info)))
|
|
(save-match-data
|
|
(org-babel-exp-do-export
|
|
(list "emacs-lisp" "results"
|
|
(org-babel-merge-params
|
|
org-babel-default-header-args
|
|
(org-babel-parse-header-arguments
|
|
(org-babel-clean-text-properties
|
|
(concat ":var results="
|
|
(mapconcat #'identity
|
|
(butlast lob-info) " ")))))
|
|
(car (last lob-info)))
|
|
'lob))))
|
|
(setq end (+ end (- (length replacement) (length (match-string 0)))))
|
|
(replace-match replacement t t)))))
|
|
|
|
(defun org-babel-exp-do-export (info type)
|
|
"Return a string with the exported content of a code block.
|
|
The function respects the value of the :exports header argument."
|
|
(flet ((silently () (let ((session (cdr (assoc :session (nth 2 info)))))
|
|
(when (and session
|
|
(not (equal "none" session))
|
|
(not (assoc :noeval (nth 2 info))))
|
|
(org-babel-exp-results info type 'silent))))
|
|
(clean () (org-babel-remove-result info)))
|
|
(case (intern (or (cdr (assoc :exports (nth 2 info))) "code"))
|
|
('none (silently) (clean) "")
|
|
('code (silently) (clean) (org-babel-exp-code info type))
|
|
('results (org-babel-exp-results info type))
|
|
('both (concat (org-babel-exp-code info type)
|
|
"\n\n"
|
|
(org-babel-exp-results info type))))))
|
|
|
|
(defvar backend)
|
|
(defun org-babel-exp-code (info type)
|
|
"Prepare and return code in the current code block for export.
|
|
Code is prepared in a manner suitable for exportat by
|
|
org-mode. This function is called by `org-babel-exp-do-export'.
|
|
The code block is not evaluated."
|
|
(let ((lang (nth 0 info))
|
|
(body (nth 1 info))
|
|
(switches (nth 3 info))
|
|
(name (nth 4 info))
|
|
(args (mapcar
|
|
#'cdr
|
|
(org-remove-if-not (lambda (el) (eq :var (car el))) (nth 2 info)))))
|
|
(case type
|
|
('inline (format "=%s=" body))
|
|
('block
|
|
(let ((str
|
|
(format "#+BEGIN_SRC %s %s\n%s%s#+END_SRC\n" lang switches body
|
|
(if (and body (string-match "\n$" body))
|
|
"" "\n"))))
|
|
(when name
|
|
(add-text-properties
|
|
0 (length str)
|
|
(list 'org-caption
|
|
(format "%s(%s)"
|
|
name
|
|
(mapconcat #'identity args ", ")))
|
|
str))
|
|
str))
|
|
('lob
|
|
(let ((call-line (and (string-match "results=" (car args))
|
|
(substring (car args) (match-end 0)))))
|
|
(cond
|
|
((eq backend 'html)
|
|
(format "\n#+HTML: <label class=\"org-src-name\">%s</label>\n"
|
|
call-line))
|
|
((format ": %s\n" call-line))))))))
|
|
|
|
(defun org-babel-exp-results (info type &optional silent)
|
|
"Evaluate and return the results of the current code block for export.
|
|
Results are prepared in a manner suitable for export by org-mode.
|
|
This function is called by `org-babel-exp-do-export'. The code
|
|
block will be evaluated. Optional argument SILENT can be used to
|
|
inhibit insertion of results into the buffer."
|
|
(if org-export-babel-evaluate
|
|
(let ((lang (nth 0 info))
|
|
(body (nth 1 info))
|
|
(params
|
|
;; lets ensure that we lookup references in the original file
|
|
(mapcar
|
|
(lambda (pair)
|
|
(if (and org-current-export-file
|
|
(eq (car pair) :var)
|
|
(string-match org-babel-ref-split-regexp (cdr pair))
|
|
(equal :ob-must-be-reference
|
|
(org-babel-ref-literal
|
|
(match-string 2 (cdr pair)))))
|
|
`(:var . ,(concat (match-string 1 (cdr pair))
|
|
"=" org-current-export-file
|
|
":" (match-string 2 (cdr pair))))
|
|
pair))
|
|
(nth 2 info))))
|
|
;; skip code blocks which we can't evaluate
|
|
(if (fboundp (intern (concat "org-babel-execute:" lang)))
|
|
(case type
|
|
('inline
|
|
(let ((raw (org-babel-execute-src-block
|
|
nil info '((:results . "silent"))))
|
|
(result-params (split-string
|
|
(cdr (assoc :results params)))))
|
|
(unless silent
|
|
(cond ;; respect the value of the :results header argument
|
|
((member "file" result-params)
|
|
(org-babel-result-to-file raw))
|
|
((or (member "raw" result-params)
|
|
(member "org" result-params))
|
|
(format "%s" raw))
|
|
((member "code" result-params)
|
|
(format "src_%s{%s}" lang raw))
|
|
(t
|
|
(if (stringp raw)
|
|
(if (= 0 (length raw)) "=(no results)="
|
|
(format "%s" raw))
|
|
(format "%S" raw)))))))
|
|
('block
|
|
(org-babel-execute-src-block
|
|
nil info (org-babel-merge-params
|
|
params
|
|
`((:results . ,(if silent "silent" "replace")))))
|
|
"")
|
|
('lob
|
|
(save-excursion
|
|
(re-search-backward org-babel-lob-one-liner-regexp nil t)
|
|
(org-babel-execute-src-block
|
|
nil info (org-babel-merge-params
|
|
params
|
|
`((:results . ,(if silent "silent" "replace")))))
|
|
"")))
|
|
""))
|
|
""))
|
|
|
|
(provide 'ob-exp)
|
|
|
|
;; arch-tag: 523abf4c-76d1-44ed-9f27-e3bddf34bf0f
|
|
|
|
;;; ob-exp.el ends here
|