mirror of
https://git.savannah.gnu.org/git/emacs/org-mode.git
synced 2024-11-26 07:33:39 +00:00
401 lines
15 KiB
EmacsLisp
401 lines
15 KiB
EmacsLisp
;;; ob-exp.el --- Exportation of org-babel source blocks
|
|
|
|
;; Copyright (C) 2009-2014 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-core)
|
|
(eval-when-compile
|
|
(require 'cl))
|
|
|
|
(defvar org-current-export-file)
|
|
(defvar org-babel-lob-one-liner-regexp)
|
|
(defvar org-babel-ref-split-regexp)
|
|
(defvar org-list-forbidden-blocks)
|
|
|
|
(declare-function org-babel-lob-get-info "ob-lob" ())
|
|
(declare-function org-babel-eval-wipe-error-buffer "ob-eval" ())
|
|
(declare-function org-between-regexps-p "org"
|
|
(start-re end-re &optional lim-up lim-down))
|
|
(declare-function org-get-indentation "org" (&optional line))
|
|
(declare-function org-heading-components "org" ())
|
|
(declare-function org-in-block-p "org" (names))
|
|
(declare-function org-in-verbatim-emphasis "org" ())
|
|
(declare-function org-link-search "org" (s &optional type avoid-pos stealth))
|
|
(declare-function org-fill-template "org" (template alist))
|
|
(declare-function org-split-string "org" (string &optional separators))
|
|
(declare-function org-element-at-point "org-element" ())
|
|
(declare-function org-element-context "org-element" ())
|
|
(declare-function org-element-property "org-element" (property element))
|
|
(declare-function org-element-type "org-element" (element))
|
|
(declare-function org-escape-code-in-string "org-src" (s))
|
|
|
|
(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. When set to 'inline-only, only inline code blocks will
|
|
be executed."
|
|
:group 'org-babel
|
|
:version "24.1"
|
|
:type '(choice (const :tag "Never" nil)
|
|
(const :tag "Only inline code" inline-only)
|
|
(const :tag "Always" t)))
|
|
(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"))))
|
|
|
|
(defvar org-link-search-inhibit-query)
|
|
|
|
(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 (&rest headers)
|
|
"Process source block for export.
|
|
Depending on the 'export' headers argument, replace the source
|
|
code block like this:
|
|
|
|
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
|
|
|
|
Assume point is at the beginning of block's starting line."
|
|
(interactive)
|
|
(save-excursion
|
|
(let* ((info (org-babel-get-src-block-info 'light))
|
|
(line (org-current-line))
|
|
(lang (nth 0 info))
|
|
(raw-params (nth 2 info)) hash)
|
|
;; bail if we couldn't get any info from the block
|
|
(unless noninteractive
|
|
(message "org-babel-exp process %s at line %d..." lang line))
|
|
(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
|
|
(apply #'org-babel-merge-params
|
|
org-babel-default-header-args
|
|
(if (boundp lang-headers) (eval lang-headers) nil)
|
|
(append (org-babel-params-from-properties lang)
|
|
(list 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-process-buffer ()
|
|
"Execute all Babel blocks in current buffer."
|
|
(interactive)
|
|
(save-window-excursion
|
|
(save-excursion
|
|
(let ((case-fold-search t)
|
|
(regexp (concat org-babel-inline-src-block-regexp "\\|"
|
|
org-babel-lob-one-liner-regexp "\\|"
|
|
"^[ \t]*#\\+BEGIN_SRC")))
|
|
(goto-char (point-min))
|
|
(while (re-search-forward regexp nil t)
|
|
(let* ((element (save-excursion
|
|
;; If match is inline, point is at its
|
|
;; end. Move backward so
|
|
;; `org-element-context' can get the
|
|
;; object, not the following one.
|
|
(backward-char)
|
|
(save-match-data (org-element-context))))
|
|
(type (org-element-type element))
|
|
(beg-el (org-element-property :begin element))
|
|
(end-el (org-element-property :end element)))
|
|
(case type
|
|
(inline-src-block
|
|
(let* ((info (org-babel-parse-inline-src-block-match))
|
|
(params (nth 2 info)))
|
|
(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)))
|
|
(goto-char beg-el)
|
|
(let ((replacement (org-babel-exp-do-export info 'inline)))
|
|
(if (equal replacement "")
|
|
;; Replacement code is empty: remove inline src
|
|
;; block, including extra white space that
|
|
;; might have been created when inserting
|
|
;; results.
|
|
(delete-region beg-el
|
|
(progn (goto-char end-el)
|
|
(skip-chars-forward " \t")
|
|
(point)))
|
|
;; Otherwise: remove inline src block but
|
|
;; preserve following white spaces. Then insert
|
|
;; value.
|
|
(delete-region beg-el
|
|
(progn (goto-char end-el)
|
|
(skip-chars-backward " \t")
|
|
(point)))
|
|
(insert replacement)))))
|
|
((babel-call inline-babel-call)
|
|
(let* ((lob-info (org-babel-lob-get-info))
|
|
(results
|
|
(org-babel-exp-do-export
|
|
(list "emacs-lisp" "results"
|
|
(apply #'org-babel-merge-params
|
|
org-babel-default-header-args
|
|
org-babel-default-lob-header-args
|
|
(append
|
|
(org-babel-params-from-properties)
|
|
(list
|
|
(org-babel-parse-header-arguments
|
|
(org-no-properties
|
|
(concat
|
|
":var results="
|
|
(mapconcat 'identity
|
|
(butlast lob-info 2)
|
|
" ")))))))
|
|
"" (nth 3 lob-info) (nth 2 lob-info))
|
|
'lob))
|
|
(rep (org-fill-template
|
|
org-babel-exp-call-line-template
|
|
`(("line" . ,(nth 0 lob-info))))))
|
|
;; If replacement is empty, completely remove the
|
|
;; object/element, including any extra white space
|
|
;; that might have been created when including
|
|
;; results.
|
|
(if (equal rep "")
|
|
(delete-region
|
|
beg-el
|
|
(progn (goto-char end-el)
|
|
(if (not (eq type 'babel-call))
|
|
(progn (skip-chars-forward " \t") (point))
|
|
(skip-chars-forward " \r\t\n")
|
|
(line-beginning-position))))
|
|
;; Otherwise, preserve following white
|
|
;; spaces/newlines and then, insert replacement
|
|
;; string.
|
|
(goto-char beg-el)
|
|
(delete-region beg-el
|
|
(progn (goto-char end-el)
|
|
(skip-chars-backward " \r\t\n")
|
|
(point)))
|
|
(insert rep))))
|
|
(src-block
|
|
(let* ((match-start (match-beginning 0))
|
|
;; Make sure we don't remove any blank lines
|
|
;; after the block when replacing it.
|
|
(block-end (save-excursion
|
|
(goto-char end-el)
|
|
(skip-chars-backward " \r\t\n")
|
|
(line-end-position)))
|
|
(ind (org-get-indentation))
|
|
(headers
|
|
(cons
|
|
(org-element-property :language element)
|
|
(let ((params (org-element-property :parameters element)))
|
|
(and params (org-split-string params "[ \t]+"))))))
|
|
;; Take care of matched block: compute replacement
|
|
;; string. In particular, a nil REPLACEMENT means
|
|
;; the block should be left as-is while an empty
|
|
;; string should remove the block.
|
|
(let ((replacement (progn (goto-char match-start)
|
|
(org-babel-exp-src-block headers))))
|
|
(cond ((not replacement) (goto-char block-end))
|
|
((equal replacement "")
|
|
(delete-region beg-el end-el))
|
|
(t
|
|
(goto-char match-start)
|
|
(delete-region (point) block-end)
|
|
(insert replacement)
|
|
(if (org-element-property :preserve-indent element)
|
|
;; Indent only the code block markers.
|
|
(save-excursion (skip-chars-backward " \r\t\n")
|
|
(indent-line-to ind)
|
|
(goto-char match-start)
|
|
(indent-line-to ind))
|
|
;; Indent everything.
|
|
(indent-rigidly match-start (point) ind))))))))))))))
|
|
|
|
(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."
|
|
(let ((silently (lambda () (let ((session (cdr (assoc :session (nth 2 info)))))
|
|
(when (not (and session (equal "none" session)))
|
|
(org-babel-exp-results info type 'silent)))))
|
|
(clean (lambda () (unless (eq type 'inline) (org-babel-remove-result info)))))
|
|
(case (intern (or (cdr (assoc :exports (nth 2 info))) "code"))
|
|
('none (funcall silently) (funcall clean) "")
|
|
('code (funcall silently) (funcall 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" . ,(org-escape-code-in-string (nth 1 info)))
|
|
,@(mapcar (lambda (pair)
|
|
(cons (substring (symbol-name (car pair)) 1)
|
|
(format "%S" (cdr pair))))
|
|
(nth 2 info))
|
|
("flags" . ,(let ((f (nth 3 info))) (when f (concat " " f))))
|
|
("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 (or (eq org-export-babel-evaluate t)
|
|
(and (eq type 'inline)
|
|
(eq org-export-babel-evaluate 'inline-only)))
|
|
(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))
|
|
(org-babel-current-src-block-location (point-marker)))
|
|
;; 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)
|
|
(let (org-confirm-babel-evaluate)
|
|
(org-babel-execute-src-block nil info))))))))))
|
|
|
|
|
|
(provide 'ob-exp)
|
|
|
|
;;; ob-exp.el ends here
|