mirror of
https://git.savannah.gnu.org/git/emacs/org-mode.git
synced 2024-08-23 12:18:35 +00:00
379 lines
14 KiB
EmacsLisp
379 lines
14 KiB
EmacsLisp
;;; org-exp-blocks.el --- pre-process blocks when exporting org files
|
|
|
|
;; Copyright (C) 2008 Eric Schulte
|
|
|
|
;; Author: Eric Schulte
|
|
|
|
;; This file is not currently 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 2, 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 this program ; see the file COPYING. If not, write to
|
|
;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
;; Boston, MA 02111-1307, USA.
|
|
|
|
;;; Commentary:
|
|
;;
|
|
;; This is a utility for pre-processing blocks in org files before
|
|
;; export using the `org-export-preprocess-hook'. It can be used for
|
|
;; exporting new types of blocks from org-mode files and also for
|
|
;; changing the default export behavior of existing org-mode blocks.
|
|
;; The `org-export-blocks' and `org-export-interblocks' alist can be
|
|
;; used to control how blocks and the spaces between blocks
|
|
;; respectively are processed upon export.
|
|
;;
|
|
;; The type of a block is defined as the string following =#+begin_=,
|
|
;; so for example the following block would be of type ditaa. Note
|
|
;; that both upper or lower case are allowed in =#+BEGIN_= and
|
|
;; =#+END_=.
|
|
;;
|
|
;; #+begin_ditaa blue.png -r -S
|
|
;; +---------+
|
|
;; | cBLU |
|
|
;; | |
|
|
;; | +----+
|
|
;; | |cPNK|
|
|
;; | | |
|
|
;; +----+----+
|
|
;; #+end_ditaa
|
|
;;
|
|
;;; Currently Implemented Block Types
|
|
;;
|
|
;; ditaa :: Convert ascii pictures to actual images using ditaa
|
|
;; http://ditaa.sourceforge.net/. To use this set
|
|
;; `org-ditaa-jar-path' to the path to ditaa.jar on your
|
|
;; system (should be set automatically in most cases) .
|
|
;;
|
|
;; dot :: Convert graphs defined using the dot graphing language to
|
|
;; images using the dot utility. For information on dot see
|
|
;; http://www.graphviz.org/
|
|
;;
|
|
;; comment :: Wrap comments with titles and author information, in
|
|
;; their own divs with author-specific ids allowing for css
|
|
;; coloring of comments based on the author.
|
|
;;
|
|
;; R :: Implements Sweave type exporting, evaluates blocks of R code,
|
|
;; and also replaces \R{} chunks in the file with their result
|
|
;; when passed to R. This require the `R' command which is
|
|
;; provided by ESS (Emacs Speaks Statistics).
|
|
|
|
(defcustom org-export-blocks
|
|
'((comment org-export-blocks-format-comment)
|
|
(ditaa org-export-blocks-format-ditaa)
|
|
(dot org-export-blocks-format-dot)
|
|
(r org-export-blocks-format-R)
|
|
(R org-export-blocks-format-R))
|
|
"Use this a-list to associate block types with block exporting
|
|
functions. The type of a block is determined by the text
|
|
immediately following the '#+BEGIN_' portion of the block header.
|
|
Each block export function should accept three argumets..."
|
|
:group 'org-export-general
|
|
:type 'alist)
|
|
|
|
(defcustom org-export-interblocks
|
|
'((r org-export-interblocks-format-R)
|
|
(R org-export-interblocks-format-R))
|
|
"Use this a-list to associate block types with block exporting
|
|
functions. The type of a block is determined by the text
|
|
immediately following the '#+BEGIN_' portion of the block header.
|
|
Each block export function should accept three argumets..."
|
|
:group 'org-export-general
|
|
:type 'alist)
|
|
|
|
(defcustom org-export-blocks-witheld
|
|
'(hidden)
|
|
"List of block types (see `org-export-blocks') which should not
|
|
be exported."
|
|
:group 'org-export-general
|
|
:type 'list)
|
|
|
|
(defvar org-export-blocks-postblock-hooks nil "")
|
|
|
|
(defun org-export-blocks-html-quote (body &optional open close)
|
|
"Protext BODY from org html export. The optional OPEN and
|
|
CLOSE tags will be inserted around BODY."
|
|
(concat
|
|
"\n#+BEGIN_HTML\n"
|
|
(or open "")
|
|
body (if (string-match "\n$" body) "" "\n")
|
|
(or close "")
|
|
"#+END_HTML\n"))
|
|
|
|
(defun org-export-blocks-latex-quote (body &optional open close)
|
|
"Protext BODY from org latex export. The optional OPEN and
|
|
CLOSE tags will be inserted around BODY."
|
|
(concat
|
|
"\n#+BEGIN_LaTeX\n"
|
|
(or open "")
|
|
body (if (string-match "\n$" body) "" "\n")
|
|
(or close "")
|
|
"#+END_LaTeX\n"))
|
|
|
|
(defun org-export-blocks-preprocess ()
|
|
"Export all blocks acording to the `org-export-blocks' block
|
|
exportation alist. Does not export block types specified in
|
|
specified in BLOCKS which default to the value of
|
|
`org-export-blocks-witheld'."
|
|
(interactive)
|
|
(save-window-excursion
|
|
(let ((count 0)
|
|
(blocks org-export-blocks-witheld)
|
|
(case-fold-search t)
|
|
(types '())
|
|
type func start end)
|
|
(flet ((interblock (start end type)
|
|
(save-match-data
|
|
(when (setf func (cadr (assoc type org-export-interblocks)))
|
|
(funcall func start end)))))
|
|
(goto-char (point-min))
|
|
(setf start (point))
|
|
(while (re-search-forward
|
|
"^#\\+begin_\\(\\S-+\\)[ \t]*\\(.*\\)?[\r\n]\\([^\000]*?\\)#\\+end_\\S-*[\r\n]" nil t)
|
|
(save-match-data (setf type (intern (match-string 1))))
|
|
(unless (memq type types) (setf types (cons type types)))
|
|
(setf end (save-match-data (match-beginning 0)))
|
|
(interblock start end type)
|
|
(if (setf func (cadr (assoc type org-export-blocks)))
|
|
(replace-match (save-match-data
|
|
(if (memq type blocks)
|
|
""
|
|
(apply func (match-string 3) (split-string (match-string 2) " ")))) t t))
|
|
(setf start (save-match-data (match-end 0))))
|
|
(mapcar (lambda (type)
|
|
(interblock start (point-max) type))
|
|
types)))))
|
|
|
|
(add-hook 'org-export-preprocess-hook 'org-export-blocks-preprocess)
|
|
|
|
;;================================================================================
|
|
;; type specific functions
|
|
|
|
;;--------------------------------------------------------------------------------
|
|
;; ditaa: create images from ASCII art using the ditaa utility
|
|
(defvar org-ditaa-jar-path (expand-file-name
|
|
"ditaa.jar"
|
|
(file-name-as-directory
|
|
(expand-file-name
|
|
"scripts"
|
|
(file-name-as-directory
|
|
(expand-file-name
|
|
".."
|
|
(file-name-directory (or load-file-name buffer-file-name)))))))
|
|
"Path to the ditaa jar executable")
|
|
|
|
(defun org-export-blocks-format-ditaa (body &rest headers)
|
|
"Pass block BODY to the ditaa utility creating an image.
|
|
Specify the path at which the image should be saved as the first
|
|
element of headers, any additional elements of headers will be
|
|
passed to the ditaa utility as command line arguments."
|
|
(message "ditaa-formatting...")
|
|
(let ((out-file (if headers (car headers)))
|
|
(args (if (cdr headers) (mapconcat 'identity (cdr headers) " ")))
|
|
(data-file (make-temp-file "org-ditaa")))
|
|
(unless (file-exists-p org-ditaa-jar-path)
|
|
(error (format "Could not find ditaa.jar at %s" org-ditaa-jar-path)))
|
|
(setq body (if (string-match "^\\([^:\\|:[^ ]\\)" body)
|
|
body
|
|
(mapconcat (lambda (x) (substring x (> (length x) 1) 2 1))
|
|
(org-split-string body "\n")
|
|
"\n")))
|
|
(cond
|
|
((or htmlp latexp)
|
|
(with-temp-file data-file (insert body))
|
|
(message (concat "java -jar " org-ditaa-jar-path " " args " " data-file " " out-file))
|
|
(shell-command (concat "java -jar " org-ditaa-jar-path " " args " " data-file " " out-file))
|
|
(format "\n[[file:%s]]\n" out-file))
|
|
(t (concat
|
|
"\n#+BEGIN_EXAMPLE\n"
|
|
body (if (string-match "\n$" body) "" "\n")
|
|
"#+END_EXAMPLE\n")))))
|
|
|
|
;;--------------------------------------------------------------------------------
|
|
;; dot: create graphs using the dot graphing language
|
|
;; (require the dot executable to be in your path)
|
|
(defun org-export-blocks-format-dot (body &rest headers)
|
|
"Pass block BODY to the dot graphing utility creating an image.
|
|
Specify the path at which the image should be saved as the first
|
|
element of headers, any additional elements of headers will be
|
|
passed to the dot utility as command line arguments. Don't
|
|
forget to specify the output type for the dot command, so if you
|
|
are exporting to a file with a name like 'image.png' you should
|
|
include a '-Tpng' argument, and your block should look like the
|
|
following.
|
|
|
|
#+begin_dot models.png -Tpng
|
|
digraph data_relationships {
|
|
\"data_requirement\" [shape=Mrecord, label=\"{DataRequirement|description\lformat\l}\"]
|
|
\"data_product\" [shape=Mrecord, label=\"{DataProduct|name\lversion\lpoc\lformat\l}\"]
|
|
\"data_requirement\" -> \"data_product\"
|
|
}
|
|
#+end_dot"
|
|
(message "dot-formatting...")
|
|
(let ((out-file (if headers (car headers)))
|
|
(args (if (cdr headers) (mapconcat 'identity (cdr headers) " ")))
|
|
(data-file (make-temp-file "org-ditaa")))
|
|
(cond
|
|
((or htmlp latexp)
|
|
(with-temp-file data-file (insert body))
|
|
(message (concat "dot " data-file " " args " -o " out-file))
|
|
(shell-command (concat "dot " data-file " " args " -o " out-file))
|
|
(format "\n[[file:%s]]\n" out-file))
|
|
(t (concat
|
|
"\n#+BEGIN_EXAMPLE\n"
|
|
body (if (string-match "\n$" body) "" "\n")
|
|
"#+END_EXAMPLE\n")))))
|
|
|
|
;;--------------------------------------------------------------------------------
|
|
;; comment: export comments in author-specific css-stylable divs
|
|
(defun org-export-blocks-format-comment (body &rest headers)
|
|
"Format comment BODY by OWNER and return it formatted for export.
|
|
Currently, this only does something for HTML export, for all
|
|
other backends, it converts the comment into an EXAMPLE segment."
|
|
(let ((owner (if headers (car headers)))
|
|
(title (if (cdr headers) (mapconcat 'identity (cdr headers) " "))))
|
|
(cond
|
|
(htmlp ;; We are exporting to HTML
|
|
(concat "#+BEGIN_HTML\n"
|
|
"<div class=\"org-comment\""
|
|
(if owner (format " id=\"org-comment-%s\" " owner))
|
|
">\n"
|
|
(if owner (concat "<b>" owner "</b> ") "")
|
|
(if (and title (> (length title) 0)) (concat " -- " title "</br>\n") "</br>\n")
|
|
"<p>\n"
|
|
"#+END_HTML\n"
|
|
body
|
|
"#+BEGIN_HTML\n"
|
|
"</p>\n"
|
|
"</div>\n"
|
|
"#+END_HTML\n"))
|
|
(t ;; This is not HTML, so just make it an example.
|
|
(concat "#+BEGIN_EXAMPLE\n"
|
|
(if title (concat "Title:" title "\n") "")
|
|
(if owner (concat "By:" owner "\n") "")
|
|
body
|
|
(if (string-match "\n\\'" body) "" "\n")
|
|
"#+END_EXAMPLE\n")))))
|
|
|
|
;;--------------------------------------------------------------------------------
|
|
;; R: Sweave-type functionality
|
|
(defvar interblock-R-buffer nil
|
|
"Holds the buffer for the current R process")
|
|
|
|
(defun org-export-blocks-format-R (body &rest headers)
|
|
"Process R blocks and replace \R{} forms outside the blocks
|
|
with their values as determined by R."
|
|
(interactive)
|
|
(message "R processing...")
|
|
(let ((image-path (or (and (car headers)
|
|
(string-match "\\(.?\\)\.\\(EPS\\|eps\\)" (car headers))
|
|
(match-string 1 (car headers)))
|
|
(and (> (length (car headers)) 0)
|
|
(car headers))
|
|
;; create the default filename
|
|
(format "Rplot-%03d" count)))
|
|
(plot (string-match "plot" body))
|
|
R-proc)
|
|
(setf count (+ count 1))
|
|
(interblock-initiate-R-buffer)
|
|
(setf R-proc (get-buffer-process interblock-R-buffer))
|
|
;; send strings to the ESS process using `comint-send-string'
|
|
(setf body (mapconcat (lambda (line)
|
|
(interblock-R-input-command line) (concat "> " line))
|
|
(butlast (split-string body "[\r\n]"))
|
|
"\n"))
|
|
;; if there is a plot command, then create the images
|
|
(when plot
|
|
(interblock-R-input-command (format "dev.copy2eps(file=\"%s.eps\")" image-path)))
|
|
(concat (cond
|
|
(htmlp (org-export-blocks-html-quote body
|
|
(format "<div id=\"R-%d\">\n<pre>\n" count)
|
|
"</pre>\n</div>\n"))
|
|
(latexp (org-export-blocks-latex-quote body
|
|
"\\begin{Schunk}\n\\begin{Sinput}\n"
|
|
"\\end{Sinput}\n\\end{Schunk}\n"))
|
|
(t (insert ;; default export
|
|
"#+begin_R " (mapconcat 'identity headers " ") "\n"
|
|
body (if (string-match "\n$" body) "" "\n")
|
|
"#+end_R\n")))
|
|
(if plot
|
|
(format "[[file:%s.eps]]\n" image-path)
|
|
""))))
|
|
|
|
(defun org-export-interblocks-format-R (start end)
|
|
"This is run over parts of the org-file which are between R
|
|
blocks. It's main use is to expand the \R{stuff} chunks for
|
|
export."
|
|
(save-excursion
|
|
(goto-char start)
|
|
(interblock-initiate-R-buffer)
|
|
(let (code replacement)
|
|
(while (and (< (point) end) (re-search-forward "\\\\R{\\(.*\\)}" end t))
|
|
(save-match-data (setf code (match-string 1)))
|
|
(setf replacement (interblock-R-command-to-string code))
|
|
(setf replacement (cond
|
|
(htmlp replacement)
|
|
(latexp replacement)
|
|
(t replacement)))
|
|
(setf end (+ end (- (length replacement) (length code))))
|
|
(replace-match replacement t t)))))
|
|
|
|
(defun interblock-initiate-R-buffer ()
|
|
"If there is not a current R process then create one."
|
|
(unless (and (buffer-live-p interblock-R-buffer) (get-buffer interblock-R-buffer))
|
|
(save-excursion
|
|
(R)
|
|
(setf interblock-R-buffer (current-buffer))
|
|
(interblock-R-wait-for-output)
|
|
(interblock-R-input-command ""))))
|
|
|
|
(defun interblock-R-command-to-string (command)
|
|
"Send a command to R, and return the results as a string."
|
|
(interblock-R-input-command command)
|
|
(interblock-R-last-output))
|
|
|
|
(defun interblock-R-input-command (command)
|
|
"Pass COMMAND to the R process running in `interblock-R-buffer'."
|
|
(save-excursion
|
|
(save-match-data
|
|
(set-buffer interblock-R-buffer)
|
|
(goto-char (process-mark (get-buffer-process (current-buffer))))
|
|
(insert command)
|
|
(comint-send-input)
|
|
(interblock-R-wait-for-output))))
|
|
|
|
(defun interblock-R-wait-for-output ()
|
|
"Wait until output arrives"
|
|
(save-excursion
|
|
(save-match-data
|
|
(set-buffer interblock-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 interblock-R-last-output ()
|
|
"Return the last R output as a string"
|
|
(save-excursion
|
|
(save-match-data
|
|
(set-buffer interblock-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)))))))
|
|
|
|
;;; org-exp-blocks.el ends here
|