Re: How to preserve indentation of title inside a latex src block when exporting to LaTeX?

[Edgar Lux <edgarlux@mailfence.com>]

This didn't work (I tried)

  ;; Indent title ----
  (defun my-latex-filter-indent-title (text backend info)
    "Ensure \"\\title\" is indented in LaTeX export."
    (when (org-export-derived-backend-p backend 'latex)
      (replace-regexp-in-string
       ;; (rx (group (and (syntax escape) "title")))
       ;; (rx (and "  " (backref 1))) text)))
       "title"
       "  title" text)))

  (make-local-variable 'org-export-filter-plain-text-functions)
  (add-to-list 'org-export-filter-plain-text-functions
               'my-latex-filter-indent-title)
  ;; ---- indent title ends


On Aug 15, 2023 at 12:35 PM, Edgar Lux <edgarlux@mailfence.com> wrote:Hello. How to preserve indentation of title inside a latex src block when
exporting to LaTeX?

For (annoying) reasons, I need a frontmatter block which is able to indent its
contents. I am almost there, but the title line is not. I can edit this
manually after export, but I would like to know if there is a way to do this...
wait... there are filters. Is a filter the only solution? Thanks. 

#+options: toc:nil title:nil timestamp:nil

#+begin_src emacs-lisp
  (org-babel-do-load-languages 
     'org-babel-load-languages 
     '( (latex       . t) ))
#+end_src

#+begin_frontmatter
  #+begin_src latex -i :exports results :eval yes :results replace
  \title{Determine in-situ matrix properties}
  \nothing{a}
  #+end_src
#+end_frontmatter

#+caption: Notice that title is not indented, but nothing is.
#+results:
: \begin{frontmatter}
: \title{Determine in-situ matrix properties}
:  \nothing{a}
: \end{frontmatter}

#+begin_src emacs-lisp
  (concat (emacs-version) "\n" (org-version))
#+end_src

#+RESULTS:
: GNU Emacs 28.2 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.36, cairo
version 1.17.6)
:  of 2023-01-03
: 9.5.5

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