mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-20 10:23:57 +00:00
355 lines
14 KiB
EmacsLisp
355 lines
14 KiB
EmacsLisp
;;; org-exp-blocks.el --- pre-process blocks when exporting org files
|
|
|
|
;; Copyright (C) 2009-2011 Free Software Foundation, Inc.
|
|
|
|
;; Author: Eric Schulte
|
|
;; Version: 7.4
|
|
|
|
;; 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:
|
|
;;
|
|
;; 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' variables 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.
|
|
;;
|
|
;;; Adding new blocks
|
|
;;
|
|
;; When adding a new block type first define a formatting function
|
|
;; along the same lines as `org-export-blocks-format-dot' and then use
|
|
;; `org-export-blocks-add-block' to add your block type to
|
|
;; `org-export-blocks'.
|
|
|
|
;;; Code:
|
|
|
|
(eval-when-compile
|
|
(require 'cl))
|
|
(require 'org)
|
|
|
|
(defvar htmlp)
|
|
(defvar latexp)
|
|
(defvar docbookp)
|
|
(defvar asciip)
|
|
|
|
(defun org-export-blocks-set (var value)
|
|
"Set the value of `org-export-blocks' and install fontification."
|
|
(set var value)
|
|
(mapc (lambda (spec)
|
|
(if (nth 2 spec)
|
|
(setq org-protecting-blocks
|
|
(delete (symbol-name (car spec))
|
|
org-protecting-blocks))
|
|
(add-to-list 'org-protecting-blocks
|
|
(symbol-name (car spec)))))
|
|
value))
|
|
|
|
(defcustom org-export-blocks
|
|
'((comment org-export-blocks-format-comment t)
|
|
(ditaa org-export-blocks-format-ditaa nil)
|
|
(dot org-export-blocks-format-dot nil))
|
|
"Use this alist 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 arguments."
|
|
:group 'org-export-general
|
|
:type '(repeat
|
|
(list
|
|
(symbol :tag "Block name")
|
|
(function :tag "Block formatter")
|
|
(boolean :tag "Fontify content as Org syntax")))
|
|
:set 'org-export-blocks-set)
|
|
|
|
(defun org-export-blocks-add-block (block-spec)
|
|
"Add a new block type to `org-export-blocks'.
|
|
BLOCK-SPEC should be a three element list the first element of
|
|
which should indicate the name of the block, the second element
|
|
should be the formatting function called by
|
|
`org-export-blocks-preprocess' and the third element a flag
|
|
indicating whether these types of blocks should be fontified in
|
|
org-mode buffers (see `org-protecting-blocks'). For example the
|
|
BLOCK-SPEC for ditaa blocks is as follows.
|
|
|
|
(ditaa org-export-blocks-format-ditaa nil)"
|
|
(unless (member block-spec org-export-blocks)
|
|
(setq org-export-blocks (cons block-spec org-export-blocks))
|
|
(org-export-blocks-set 'org-export-blocks org-export-blocks)))
|
|
|
|
(defcustom org-export-interblocks
|
|
'()
|
|
"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 arguments."
|
|
: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)
|
|
|
|
(defcustom org-export-blocks-postblock-hook nil
|
|
"Run after blocks have been processed with `org-export-blocks-preprocess'."
|
|
:group 'org-export-general
|
|
:type 'hook)
|
|
|
|
(defun org-export-blocks-html-quote (body &optional open close)
|
|
"Protect 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$" body) "" "\n")
|
|
(or close "")
|
|
"#+END_HTML\n"))
|
|
|
|
(defun org-export-blocks-latex-quote (body &optional open close)
|
|
"Protect BODY from org latex export.
|
|
The optional OPEN and CLOSE tags will be inserted around BODY."
|
|
(concat
|
|
"\n#+BEGIN_LaTeX\n"
|
|
(or open "")
|
|
body (if (string-match "\n$" body) "" "\n")
|
|
(or close "")
|
|
"#+END_LaTeX\n"))
|
|
|
|
(defun org-export-blocks-preprocess ()
|
|
"Export all blocks according to the `org-export-blocks' block export alist.
|
|
Does not export block types specified in specified in BLOCKS
|
|
which defaults to the value of `org-export-blocks-witheld'."
|
|
(interactive)
|
|
(save-window-excursion
|
|
(let ((case-fold-search t)
|
|
(types '())
|
|
indentation type func start body headers preserve-indent progress-marker)
|
|
(flet ((interblock (start end)
|
|
(mapcar (lambda (pair) (funcall (second pair) start end))
|
|
org-export-interblocks)))
|
|
(goto-char (point-min))
|
|
(setq start (point))
|
|
(while (re-search-forward
|
|
"^\\([ \t]*\\)#\\+begin_\\(\\S-+\\)[ \t]*\\(.*\\)?[\r\n]\\([^\000]*?\\)[\r\n][ \t]*#\\+end_\\S-+.*[\r\n]?" nil t)
|
|
(setq indentation (length (match-string 1)))
|
|
(setq type (intern (downcase (match-string 2))))
|
|
(setq headers (save-match-data (org-split-string (match-string 3) "[ \t]+")))
|
|
(setq body (match-string 4))
|
|
(setq preserve-indent (or org-src-preserve-indentation (member "-i" headers)))
|
|
(unless preserve-indent
|
|
(setq body (save-match-data (org-remove-indentation body))))
|
|
(unless (memq type types) (setq types (cons type types)))
|
|
(save-match-data (interblock start (match-beginning 0)))
|
|
(when (setq func (cadr (assoc type org-export-blocks)))
|
|
(let ((replacement (save-match-data
|
|
(if (memq type org-export-blocks-witheld) ""
|
|
(apply func body headers)))))
|
|
(when replacement
|
|
(replace-match replacement t t)
|
|
(unless preserve-indent
|
|
(indent-code-rigidly
|
|
(match-beginning 0) (match-end 0) indentation)))))
|
|
(setq start (match-end 0)))
|
|
(interblock start (point-max))
|
|
(run-hooks 'org-export-blocks-postblock-hook)))))
|
|
|
|
;;================================================================================
|
|
;; 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
|
|
"../contrib"
|
|
(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* ((args (if (cdr headers) (mapconcat 'identity (cdr headers) " ")))
|
|
(data-file (make-temp-file "org-ditaa"))
|
|
(hash (progn
|
|
(set-text-properties 0 (length body) nil body)
|
|
(sha1 (prin1-to-string (list body args)))))
|
|
(raw-out-file (if headers (car headers)))
|
|
(out-file-parts (if (string-match "\\(.+\\)\\.\\([^\\.]+\\)$" raw-out-file)
|
|
(cons (match-string 1 raw-out-file)
|
|
(match-string 2 raw-out-file))
|
|
(cons raw-out-file "png")))
|
|
(out-file (concat (car out-file-parts) "_" hash "." (cdr out-file-parts))))
|
|
(unless (file-exists-p org-ditaa-jar-path)
|
|
(error (format "Could not find ditaa.jar at %s" org-ditaa-jar-path)))
|
|
(setq body (if (string-match "^\\([^:\\|:[^ ]\\)" body)
|
|
body
|
|
(mapconcat (lambda (x) (substring x (if (> (length x) 1) 2 1)))
|
|
(org-split-string body "\n")
|
|
"\n")))
|
|
(cond
|
|
((or htmlp latexp docbookp)
|
|
(unless (file-exists-p out-file)
|
|
(mapc ;; remove old hashed versions of this file
|
|
(lambda (file)
|
|
(when (and (string-match (concat (regexp-quote (car out-file-parts))
|
|
"_\\([[:alnum:]]+\\)\\."
|
|
(regexp-quote (cdr out-file-parts)))
|
|
file)
|
|
(= (length (match-string 1 out-file)) 40))
|
|
(delete-file (expand-file-name file
|
|
(file-name-directory out-file)))))
|
|
(directory-files (or (file-name-directory out-file)
|
|
default-directory)))
|
|
(with-temp-file data-file (insert body))
|
|
(message (concat "java -jar " org-ditaa-jar-path " " args " " data-file " " out-file))
|
|
(shell-command (concat "java -jar " org-ditaa-jar-path " " args " " data-file " " out-file)))
|
|
(format "\n[[file:%s]]\n" out-file))
|
|
(t (concat
|
|
"\n#+BEGIN_EXAMPLE\n"
|
|
body (if (string-match "\n$" 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* ((args (if (cdr headers) (mapconcat 'identity (cdr headers) " ")))
|
|
(data-file (make-temp-file "org-ditaa"))
|
|
(hash (progn
|
|
(set-text-properties 0 (length body) nil body)
|
|
(sha1 (prin1-to-string (list body args)))))
|
|
(raw-out-file (if headers (car headers)))
|
|
(out-file-parts (if (string-match "\\(.+\\)\\.\\([^\\.]+\\)$" raw-out-file)
|
|
(cons (match-string 1 raw-out-file)
|
|
(match-string 2 raw-out-file))
|
|
(cons raw-out-file "png")))
|
|
(out-file (concat (car out-file-parts) "_" hash "." (cdr out-file-parts))))
|
|
(cond
|
|
((or htmlp latexp docbookp)
|
|
(unless (file-exists-p out-file)
|
|
(mapc ;; remove old hashed versions of this file
|
|
(lambda (file)
|
|
(when (and (string-match (concat (regexp-quote (car out-file-parts))
|
|
"_\\([[:alnum:]]+\\)\\."
|
|
(regexp-quote (cdr out-file-parts)))
|
|
file)
|
|
(= (length (match-string 1 out-file)) 40))
|
|
(delete-file (expand-file-name file
|
|
(file-name-directory out-file)))))
|
|
(directory-files (or (file-name-directory out-file)
|
|
default-directory)))
|
|
(with-temp-file data-file (insert body))
|
|
(message (concat "dot " data-file " " args " -o " out-file))
|
|
(shell-command (concat "dot " data-file " " args " -o " out-file)))
|
|
(format "\n[[file:%s]]\n" out-file))
|
|
(t (concat
|
|
"\n#+BEGIN_EXAMPLE\n"
|
|
body (if (string-match "\n$" 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")))))
|
|
|
|
(provide 'org-exp-blocks)
|
|
|
|
;;; org-exp-blocks.el ends here
|