mirror of
https://git.savannah.gnu.org/git/emacs/org-mode.git
synced 2024-11-22 07:09:47 +00:00
321 lines
12 KiB
EmacsLisp
321 lines
12 KiB
EmacsLisp
;;; ob-exp.el --- Exportation of org-babel source blocks
|
|
|
|
;; Copyright (C) 2009-2012 Free Software Foundation, Inc.
|
|
|
|
;; Authors: Eric Schulte
|
|
;; Dan Davison
|
|
;; Keywords: literate programming, reproducible research
|
|
;; Homepage: http://orgmode.org
|
|
|
|
;; 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/>.
|
|
|
|
;;; 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-eval-wipe-error-buffer "ob-eval" ())
|
|
(add-to-list 'org-export-interblocks '(src org-babel-exp-non-block-elements))
|
|
|
|
(org-export-blocks-add-block '(src org-babel-exp-src-block nil))
|
|
|
|
(defcustom org-export-babel-evaluate t
|
|
"Switch controlling code evaluation during export.
|
|
When set to nil no code will be evaluated as part of the export
|
|
process."
|
|
:group 'org-babel
|
|
:version "24.1"
|
|
:type 'boolean)
|
|
(put 'org-export-babel-evaluate 'safe-local-variable (lambda (x) (eq x nil)))
|
|
|
|
(defun org-babel-exp-get-export-buffer ()
|
|
"Return the current export buffer if possible."
|
|
(cond
|
|
((bufferp org-current-export-file) org-current-export-file)
|
|
(org-current-export-file (get-file-buffer org-current-export-file))
|
|
('otherwise
|
|
(error "Requested export buffer when `org-current-export-file' is nil"))))
|
|
|
|
(defmacro org-babel-exp-in-export-file (lang &rest body)
|
|
(declare (indent 1))
|
|
`(let* ((lang-headers (intern (concat "org-babel-default-header-args:" ,lang)))
|
|
(heading (nth 4 (ignore-errors (org-heading-components))))
|
|
(export-buffer (current-buffer))
|
|
(original-buffer (org-babel-exp-get-export-buffer)) results)
|
|
(when original-buffer
|
|
;; resolve parameters in the original file so that
|
|
;; headline and file-wide parameters are included, attempt
|
|
;; to go to the same heading in the original file
|
|
(set-buffer original-buffer)
|
|
(save-restriction
|
|
(when heading
|
|
(condition-case nil
|
|
(let ((org-link-search-inhibit-query t))
|
|
(org-link-search heading))
|
|
(error (when heading
|
|
(goto-char (point-min))
|
|
(re-search-forward (regexp-quote heading) nil t)))))
|
|
(setq results ,@body))
|
|
(set-buffer export-buffer)
|
|
results)))
|
|
(def-edebug-spec org-babel-exp-in-export-file (form body))
|
|
|
|
(defun org-babel-exp-src-block (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)
|
|
(unless noninteractive (message "org-babel-exp processing..."))
|
|
(save-excursion
|
|
(goto-char (match-beginning 0))
|
|
(let* ((info (org-babel-get-src-block-info 'light))
|
|
(lang (nth 0 info))
|
|
(raw-params (nth 2 info)) hash)
|
|
;; bail if we couldn't get any info from the block
|
|
(when info
|
|
;; if we're actually going to need the parameters
|
|
(when (member (cdr (assoc :exports (nth 2 info))) '("both" "results"))
|
|
(org-babel-exp-in-export-file lang
|
|
(setf (nth 2 info)
|
|
(org-babel-process-params
|
|
(org-babel-merge-params
|
|
org-babel-default-header-args
|
|
(org-babel-params-from-properties lang)
|
|
(if (boundp lang-headers) (eval lang-headers) nil)
|
|
raw-params))))
|
|
(setf hash (org-babel-sha1-hash info)))
|
|
(org-babel-exp-do-export info 'block hash)))))
|
|
|
|
(defcustom org-babel-exp-call-line-template
|
|
""
|
|
"Template used to export call lines.
|
|
This template may be customized to include the call line name
|
|
with any export markup. The template is filled out using
|
|
`org-fill-template', and the following %keys may be used.
|
|
|
|
line --- call line
|
|
|
|
An example value would be \"\\n: call: %line\" to export the call line
|
|
wrapped in a verbatim environment.
|
|
|
|
Note: the results are inserted separately after the contents of
|
|
this template."
|
|
:group 'org-babel
|
|
:type 'string)
|
|
|
|
(defvar org-babel-default-lob-header-args)
|
|
(defun org-babel-exp-non-block-elements (start end)
|
|
"Process inline source and call lines between START and END for export."
|
|
(interactive)
|
|
(save-excursion
|
|
(goto-char start)
|
|
(unless (markerp end)
|
|
(let ((m (make-marker)))
|
|
(set-marker m end (current-buffer))
|
|
(setq end m)))
|
|
(let ((rx (concat "\\(" org-babel-inline-src-block-regexp
|
|
"\\|" org-babel-lob-one-liner-regexp "\\)")))
|
|
(while (and (< (point) (marker-position end))
|
|
(re-search-forward rx end t))
|
|
(if (save-excursion
|
|
(goto-char (match-beginning 0))
|
|
(looking-at org-babel-inline-src-block-regexp))
|
|
(progn
|
|
(forward-char 1)
|
|
(let* ((info (save-match-data
|
|
(org-babel-parse-inline-src-block-match)))
|
|
(params (nth 2 info)))
|
|
(save-match-data
|
|
(goto-char (match-beginning 2))
|
|
(unless (org-babel-in-example-or-verbatim)
|
|
;; 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 (org-babel-exp-get-export-buffer))
|
|
(nth 1 info)))
|
|
(let ((code-replacement (save-match-data
|
|
(org-babel-exp-do-export
|
|
info 'inline))))
|
|
(if code-replacement
|
|
(progn (replace-match code-replacement nil nil nil 1)
|
|
(delete-char 1))
|
|
(org-babel-examplize-region (match-beginning 1)
|
|
(match-end 1))
|
|
(forward-char 2)))))))
|
|
(unless (org-babel-in-example-or-verbatim)
|
|
(let* ((lob-info (org-babel-lob-get-info))
|
|
(inlinep (match-string 11))
|
|
(inline-start (match-end 11))
|
|
(inline-end (match-end 0))
|
|
(results (save-match-data
|
|
(org-babel-exp-do-export
|
|
(list "emacs-lisp" "results"
|
|
(org-babel-merge-params
|
|
org-babel-default-header-args
|
|
org-babel-default-lob-header-args
|
|
(org-babel-params-from-properties)
|
|
(org-babel-parse-header-arguments
|
|
(org-babel-clean-text-properties
|
|
(concat ":var results="
|
|
(mapconcat #'identity
|
|
(butlast lob-info)
|
|
" ")))))
|
|
"" nil (car (last lob-info)))
|
|
'lob)))
|
|
(rep (org-fill-template
|
|
org-babel-exp-call-line-template
|
|
`(("line" . ,(nth 0 lob-info))))))
|
|
(if inlinep
|
|
(save-excursion
|
|
(goto-char inline-start)
|
|
(delete-region inline-start inline-end)
|
|
(insert rep))
|
|
(replace-match rep t t)))))))))
|
|
|
|
(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 (save-match-data
|
|
(save-excursion
|
|
(goto-char (point-at-bol))
|
|
(looking-at "[ \t]*:[ \t]")))
|
|
(org-in-verbatim-emphasis)
|
|
(org-in-block-p org-list-forbidden-blocks)
|
|
(org-between-regexps-p "^[ \t]*#\\+begin_src" "^[ \t]*#\\+end_src")))
|
|
|
|
(defun org-babel-exp-do-export (info type &optional hash)
|
|
"Return a string with the exported content of a code block.
|
|
The function respects the value of the :exports header argument."
|
|
(org-flet ((silently () (let ((session (cdr (assoc :session (nth 2 info)))))
|
|
(when (not (and session (equal "none" session)))
|
|
(org-babel-exp-results info type 'silent))))
|
|
(clean () (unless (eq type 'inline) (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))
|
|
('results (org-babel-exp-results info type nil hash) "")
|
|
('both (org-babel-exp-results info type nil hash)
|
|
(org-babel-exp-code info)))))
|
|
|
|
(defcustom org-babel-exp-code-template
|
|
"#+BEGIN_SRC %lang%flags\n%body\n#+END_SRC"
|
|
"Template used to export the body of code blocks.
|
|
This template may be customized to include additional information
|
|
such as the code block name, or the values of particular header
|
|
arguments. The template is filled out using `org-fill-template',
|
|
and the following %keys may be used.
|
|
|
|
lang ------ the language of the code block
|
|
name ------ the name of the code block
|
|
body ------ the body of the code block
|
|
flags ----- the flags passed to the code block
|
|
|
|
In addition to the keys mentioned above, every header argument
|
|
defined for the code block may be used as a key and will be
|
|
replaced with its value."
|
|
:group 'org-babel
|
|
:type 'string)
|
|
|
|
(defun org-babel-exp-code (info)
|
|
"Return the original code block formatted for export."
|
|
(setf (nth 1 info)
|
|
(if (string= "strip-export" (cdr (assoc :noweb (nth 2 info))))
|
|
(replace-regexp-in-string
|
|
(org-babel-noweb-wrap) "" (nth 1 info))
|
|
(if (org-babel-noweb-p (nth 2 info) :export)
|
|
(org-babel-expand-noweb-references
|
|
info (org-babel-exp-get-export-buffer))
|
|
(nth 1 info))))
|
|
(org-fill-template
|
|
org-babel-exp-code-template
|
|
`(("lang" . ,(nth 0 info))
|
|
("body" . ,(if (string= (nth 0 info) "org")
|
|
(replace-regexp-in-string "^" "," (nth 1 info))
|
|
(nth 1 info)))
|
|
,@(mapcar (lambda (pair)
|
|
(cons (substring (symbol-name (car pair)) 1)
|
|
(format "%S" (cdr pair))))
|
|
(nth 2 info))
|
|
("flags" . ,((lambda (f) (when f (concat " " f))) (nth 3 info)))
|
|
("name" . ,(or (nth 4 info) "")))))
|
|
|
|
(defun org-babel-exp-results (info type &optional silent hash)
|
|
"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."
|
|
(when (and org-export-babel-evaluate
|
|
(not (and hash (equal hash (org-babel-current-result-hash)))))
|
|
(let ((lang (nth 0 info))
|
|
(body (if (org-babel-noweb-p (nth 2 info) :eval)
|
|
(org-babel-expand-noweb-references
|
|
info (org-babel-exp-get-export-buffer))
|
|
(nth 1 info)))
|
|
(info (copy-sequence info)))
|
|
;; skip code blocks which we can't evaluate
|
|
(when (fboundp (intern (concat "org-babel-execute:" lang)))
|
|
(org-babel-eval-wipe-error-buffer)
|
|
(prog1 nil
|
|
(setf (nth 1 info) body)
|
|
(setf (nth 2 info)
|
|
(org-babel-exp-in-export-file lang
|
|
(org-babel-process-params
|
|
(org-babel-merge-params
|
|
(nth 2 info)
|
|
`((:results . ,(if silent "silent" "replace")))))))
|
|
(cond
|
|
((equal type 'block)
|
|
(org-babel-execute-src-block nil info))
|
|
((equal type 'inline)
|
|
;; position the point on the inline source block allowing
|
|
;; `org-babel-insert-result' to check that the block is
|
|
;; inline
|
|
(re-search-backward "[ \f\t\n\r\v]" nil t)
|
|
(re-search-forward org-babel-inline-src-block-regexp nil t)
|
|
(re-search-backward "src_" nil t)
|
|
(org-babel-execute-src-block nil info))
|
|
((equal type 'lob)
|
|
(save-excursion
|
|
(re-search-backward org-babel-lob-one-liner-regexp nil t)
|
|
(org-babel-execute-src-block nil info)))))))))
|
|
|
|
(provide 'ob-exp)
|
|
|
|
|
|
|
|
;;; ob-exp.el ends here
|