Re: caption width in LateX export

[Juan Manuel Macías]

Sebastian P. Luque writes:

> Thank you, Juan.  Unfortunately, there is a price for this solution as
> it is now impossible to name and refer to this segment as usual:

I see. Have you tried the option with LuaTeX that I put in my other
message? You can compile with LuaTeX also using latexmk:

(setq org-latex-pdf-process
      '("latexmk -lualatex -e '$lualatex=q/lualatex %%O -shell-escape %%S/' 
%f"))

In any case, since this is a simple substitution, you can use also a
function in Elisp as a final output filter[1]:

#+BIND: org-export-filter-final-output-functions (caption-auto-width)
#+begin_src emacs-lisp :exports results :results none
  (defun caption-auto-width (text backend info)
    (when (org-export-derived-backend-p backend 'latex)
      (with-temp-buffer
        (insert text)
        (save-excursion
          (goto-char (point-min))
          (while (re-search-forward "\\(\\\\includegraphics.+\\)" nil t)
            (replace-match "\\\\sbox0{\\1}" t nil)))
        (save-excursion
          (goto-char (point-min))
          (while (re-search-forward "\\(\\\\caption.+\\)" nil t)
            (replace-match 
"\\\\begin{minipage}{\\\\wd0}\\\\usebox0\\1\\\\end{minipage}" t nil)))
        (setq text (buffer-string)))))
#+end_src

Vid. [[fig:1]] 

#+NAME: fig:1
#+CAPTION: Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Donec 
hendrerit tempor tellus. Donec pretium posuere tellus
#+ATTR_LaTeX: :width .3\linewidth
[[my-image.jpg]]

[1] You need to set this variable as non-nil, in order to use bind
keywords: (setq org-export-allow-bind-keywords t)

Hope this works,

Best regards,

Juan Manuel