mirror of
https://git.savannah.gnu.org/git/emacs/org-mode.git
synced 2024-08-20 17:18:32 +00:00
172 lines
6.5 KiB
EmacsLisp
172 lines
6.5 KiB
EmacsLisp
;;; org-static-mathjax.el --- Muse-like tags in Org-mode
|
|
;;
|
|
;; Author: Jan Böker <jan dot boecker at jboecker dot de>
|
|
|
|
;; This elisp code integrates Static MathJax into the
|
|
;; HTML export process of Org-mode.
|
|
;;
|
|
;; The supporting files for this package are in contrib/scripts/staticmathjax
|
|
;; Please read the README.org file in that directory for more information.
|
|
|
|
;; To use it, evaluate it on startup, add the following to your .emacs:
|
|
|
|
;; (require 'org-static-mathjax)
|
|
;;
|
|
;; You will then have to customize the following two variables:
|
|
;; - org-static-mathjax-app-ini-path
|
|
;; - org-static-mathjax-local-mathjax-path
|
|
;;
|
|
;; If xulrunner is not in your $PATH, you will also need to customize
|
|
;; org-static-mathjax-xulrunner-path.
|
|
;;
|
|
;; If everything is setup correctly, you can trigger Static MathJax on
|
|
;; export to HTML by adding the following line to your Org file:
|
|
;; #+StaticMathJax: embed-fonts:nil output-file-name:"embedded-math.html"
|
|
;;
|
|
;; You can omit either argument.
|
|
;; embed-fonts defaults to nil. If you do not specify output-file-name,
|
|
;; the exported file is overwritten with the static version.
|
|
;;
|
|
;; If embed-fonts is non-nil, the fonts are embedded directly into the
|
|
;; output file using data: URIs.
|
|
;;
|
|
;; output-file-name specifies the file name of the static version. You
|
|
;; can use any arbitrary lisp form here, for example:
|
|
;; output-file-name:(concat (file-name-sans-extension buffer-file-name) "-static.html")
|
|
;;
|
|
;; The StaticMathJax XULRunner application expects a UTF-8 encoded
|
|
;; input file. If the static version displays random characters instead
|
|
;; of your math, add the following line at the top of your Org file:
|
|
;; -*- coding: utf-8; -*-
|
|
;;
|
|
;; License: GPL v2 or later
|
|
|
|
(defcustom org-static-mathjax-app-ini-path
|
|
(or (expand-file-name
|
|
"../scripts/staticmatchjax/application.ini"
|
|
(file-name-directory (or load-file-name buffer-file-name)))
|
|
"")
|
|
"Path to \"application.ini\" of the Static MathJax XULRunner application.
|
|
If you have extracted StaticMathJax to e.g. ~/.local/staticmathjax, set
|
|
this to ~/.local/staticmathjax/application.ini"
|
|
:type 'string)
|
|
|
|
(defcustom org-static-mathjax-xulrunner-path
|
|
"xulrunner"
|
|
"Path to your xulrunner binary"
|
|
:type 'string)
|
|
|
|
(defcustom org-static-mathjax-local-mathjax-path
|
|
""
|
|
"Extract the MathJax zip file somewhere on your local
|
|
hard drive and specify the path here.
|
|
|
|
The directory has to be writeable, as org-static-mathjax
|
|
creates a temporary file there during export."
|
|
:type 'string)
|
|
|
|
(defvar org-static-mathjax-debug
|
|
nil
|
|
"If non-nil, org-static-mathjax will print some debug messages")
|
|
|
|
(defun org-static-mathjax-hook-installer ()
|
|
"Installs org-static-mathjax-process in after-save-hook.
|
|
|
|
Sets the following buffer-local variables for org-static-mathjax-process to pick up:
|
|
org-static-mathjax-mathjax-path: The path to MathJax.js as used by Org HTML export
|
|
org-static-mathjax-options: The string given with #+STATICMATHJAX: in the file"
|
|
(let ((static-mathjax-option-string (plist-get opt-plist :static-mathjax)))
|
|
(if static-mathjax-option-string
|
|
(progn (set (make-local-variable 'org-static-mathjax-options) static-mathjax-option-string)
|
|
(set (make-local-variable 'org-static-mathjax-mathjax-path)
|
|
(nth 1 (assq 'path org-export-html-mathjax-options)))
|
|
(let ((mathjax-options (plist-get opt-plist :mathjax)))
|
|
(if mathjax-options
|
|
(if (string-match "\\<path:" mathjax-options)
|
|
(set 'org-static-mathjax-mathjax-path
|
|
(car (read-from-string
|
|
(substring mathjax-options (match-end 0))))))))
|
|
(add-hook 'after-save-hook
|
|
'org-static-mathjax-process
|
|
nil t)))))
|
|
|
|
|
|
(defun org-static-mathjax-process ()
|
|
(save-excursion
|
|
; some sanity checking
|
|
(if (or (string= org-static-mathjax-app-ini-path "")
|
|
(not (file-exists-p org-static-mathjax-app-ini-path)))
|
|
(error "Static MathJax: You must customize org-static-mathjax-app-ini-path!"))
|
|
(if (or (string= org-static-mathjax-local-mathjax-path "")
|
|
(not (file-exists-p org-static-mathjax-local-mathjax-path)))
|
|
(error "Static MathJax: You must customize org-static-mathjax-local-mathjax-path!"))
|
|
|
|
; define variables
|
|
(let* ((options org-static-mathjax-options)
|
|
(output-file-name buffer-file-name)
|
|
(input-file-name (let ((temporary-file-directory (file-name-directory org-static-mathjax-local-mathjax-path)))
|
|
(make-temp-file "org-static-mathjax-" nil ".html")))
|
|
(html-code (buffer-string))
|
|
(mathjax-oldpath (concat "src=\"" org-static-mathjax-mathjax-path))
|
|
(mathjax-newpath (concat "src=\"" org-static-mathjax-local-mathjax-path))
|
|
embed-fonts)
|
|
; read file-local options
|
|
(mapc
|
|
(lambda (symbol)
|
|
(if (string-match (concat "\\<" (symbol-name symbol) ":") options)
|
|
(set symbol (eval (car (read-from-string
|
|
(substring options (match-end 0))))))))
|
|
'(embed-fonts output-file-name))
|
|
|
|
; debug
|
|
(when org-static-mathjax-debug
|
|
(message "output file name, embed-fonts")
|
|
(print output-file-name)
|
|
(print embed-fonts))
|
|
|
|
; open (temporary) input file, copy contents there, replace MathJax path with local installation
|
|
(with-temp-buffer
|
|
(insert html-code)
|
|
(goto-char 1)
|
|
(replace-regexp mathjax-oldpath mathjax-newpath)
|
|
(write-file input-file-name))
|
|
|
|
; prepare argument list for call-process
|
|
(let ((call-process-args (list org-static-mathjax-xulrunner-path
|
|
nil nil nil
|
|
org-static-mathjax-app-ini-path
|
|
input-file-name
|
|
output-file-name)))
|
|
; if fonts are embedded, just append the --embed-fonts flag
|
|
(if embed-fonts
|
|
(add-to-list 'call-process-args "--embed-fonts" t))
|
|
; if fonts are not embedded, the XULRunner app must replace all references
|
|
; to the font files with the real location (Firefox inserts file:// URLs there,
|
|
; because we are using a local MathJax installation here)
|
|
(if (not embed-fonts)
|
|
(progn
|
|
(add-to-list 'call-process-args "--final-mathjax-url" t)
|
|
(add-to-list 'call-process-args
|
|
(file-name-directory org-static-mathjax-mathjax-path)
|
|
t)))
|
|
|
|
; debug
|
|
(when org-static-mathjax-debug
|
|
(print call-process-args))
|
|
; call it
|
|
(apply 'call-process call-process-args)
|
|
; delete our temporary input file
|
|
(kill-buffer)
|
|
(delete-file input-file-name)
|
|
(let ((backup-file (concat input-file-name "~")))
|
|
(if (file-exists-p backup-file)
|
|
(delete-file backup-file)))))))
|
|
|
|
(add-to-list 'org-export-inbuffer-options-extra
|
|
'("STATICMATHJAX" :static-mathjax))
|
|
|
|
(add-hook 'org-export-html-final-hook 'org-static-mathjax-hook-installer)
|
|
|
|
|
|
(provide 'org-static-mathjax)
|