Matt Huszagh <huszaghm...@gmail.com> writes:
> I've added a few changes to the patch that additionally allow custom the
> begin and end document environments. The purpose here is to allow latex
> code within the document environment that is ignored by the body
> export. For instance, I can set the page color with
> {\color{some-color}...} and this doesn't mess up latex exports.
I've fixed a minor bug with the previous patch.
>From 1bcd1d28dde6625d0c648c92243260b46433e1eb Mon Sep 17 00:00:00 2001
From: Matt Huszagh <huszaghm...@gmail.com>
Date: Fri, 28 Aug 2020 22:26:05 -0700
Subject: [PATCH] ob-latex.el: Make latex to svg compilation very customizable
* lisp/ob-latex.el (org-babel-latex-preamble): Add latex preamble
customization.
(org-babel-latex-begin-env): Add latex document environment begin
customization.
(org-babel-latex-end-env): Add latex document environment end
customization.
(org-babel-latex-pdf-svg-process): Add customization for converting a
pdf to svg.
(org-babel-execute:latex): Add specific case for svg generation from
latex block.
---
lisp/ob-latex.el | 57 ++++++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 55 insertions(+), 2 deletions(-)
diff --git a/lisp/ob-latex.el b/lisp/ob-latex.el
index 4b343dd14..991873e2e 100644
--- a/lisp/ob-latex.el
+++ b/lisp/ob-latex.el
@@ -70,6 +70,45 @@
:group 'org-babel
:type 'string)
+(defcustom org-babel-latex-preamble
+ (lambda (_)
+ "\\documentclass[preview]{standalone}
+\\def\\pgfsysdriver{pgfsys-tex4ht.def}
+")
+ "Closure which evaluates at runtime to the latex preamble. It
+takes 1 argument which is the parameters of the source block."
+ :group 'org-babel
+ :type 'function)
+
+(defcustom org-babel-latex-begin-env
+ (lambda (_)
+ "\\begin{document}")
+ "Closure which evaluates at runtime to the begin part of the
+document environment. It takes 1 argument which is the
+parameters of the source block. This allows adding additional
+code that will be ignored when exporting the literal latex
+source."
+ :group 'org-babel
+ :type 'function)
+
+(defcustom org-babel-latex-end-env
+ (lambda (_)
+ "\\end{document}")
+ "Closure which evaluates at runtime to the end part of the
+document environment. It takes 1 argument which is the
+parameters of the source block. This allows adding additional
+code that will be ignored when exporting the literal latex
+source."
+ :group 'org-babel
+ :type 'function)
+
+(defcustom org-babel-latex-pdf-svg-process
+ "inkscape --pdf-poppler %f -T -l -o %O"
+ "Command used to convert a PDF file to an SVG file when
+executing a latex source block."
+ :group 'org-babel
+ :type 'string)
+
(defcustom org-babel-latex-htlatex-packages
'("[usenames]{color}" "{tikz}" "{color}" "{listings}" "{amsmath}")
"Packages to use for htlatex export."
@@ -114,12 +153,26 @@ This function is called by `org-babel-execute-src-block'."
(mapconcat #'identity headers "\n"))))
(org-create-formula-image
body out-file org-format-latex-options in-buffer)))
+ ((string= "svg" extension)
+ (with-temp-file tex-file
+ (insert (concat (funcall org-babel-latex-preamble params)
+ (mapconcat #'identity headers "\n")
+ (funcall org-babel-latex-begin-env params)
+ body
+ (funcall org-babel-latex-end-env params))))
+ (let ((tmp-pdf (org-babel-latex-tex-to-pdf tex-file)))
+ (let* ((log-buf (get-buffer-create "*Org Babel LaTeX Output*"))
+ (err-msg "org babel latex failed")
+ (img-out (org-compile-file
+ tmp-pdf
+ (list org-babel-latex-pdf-svg-process)
+ extension err-msg log-buf)))
+ (shell-command (format "mv %s %s" img-out out-file)))))
((string-suffix-p ".tikz" out-file)
(when (file-exists-p out-file) (delete-file out-file))
(with-temp-file out-file
(insert body)))
- ((and (or (string= "svg" extension)
- (string= "html" extension))
+ ((and (string= "html" extension)
(executable-find org-babel-latex-htlatex))
;; TODO: this is a very different way of generating the
;; frame latex document than in the pdf case. Ideally, both
--
2.28.0
