Export org special text block to Latex - emacs

Question

My problem is to export this org-block
#+BEGIN_NOTE
some text here
#+END_NOTE
to this Latex code
\begin{bclogo}[logo=\bcattention, noborder=true, barre=none]{some text here}
\end{bclogo}
Is there a way to customize how to export in Latex this block of text?

Answer 1

You can keep the NOTE environment and replace it with bclogo through a latex-specific filter (I modified John's code):
(defun my/latex-process-NOTE-blocks (text backend info)
"Filter special blocks from latex export."
(when (eq backend 'latex)
(let ((text (replace-regexp-in-string "\\\\begin{NOTE}" "\\\\begin{bclogo}[logo=\\\\bcattention, noborder=true, barre=none]{" text)))
(replace-regexp-in-string "\\\\end{NOTE}" "}\\\\end{bclogo}" text))))
(eval-after-load 'ox '(add-to-list
'org-export-filter-special-block-functions
'my/latex-process-NOTE-blocks))
If you want to do this with all latex-derived backends, you can replace (eq backend 'latex) with (org-export-derived-backend-p backend 'latex).
If you want to make sure the block starts with \begin{NOTE}:
(defun string/starts-with (string prefix)
"Return t if STRING starts with prefix."
(and (string-match (rx-to-string `(: bos ,prefix) t) string) t))
(defun my/latex-process-NOTE-blocks (text backend info)
"Filter special blocks from latex export."
(when (eq backend 'latex)
(if (string/starts-with text "\\begin{NOTE}")
(let ((text (replace-regexp-in-string "\\\\begin{NOTE}" "\\\\begin{bclogo}[logo=\\\\bcattention, noborder=true, barre=none]{" text)))
(replace-regexp-in-string "\\\\end{NOTE}" "}\\\\end{bclogo}" text)))))
(eval-after-load 'ox '(add-to-list
'org-export-filter-special-block-functions
'my/latex-process-NOTE-blocks))

Answer 2

May I suggest to use instead something like:
#+LaTeX_HEADER: \usepackage[tikz]{bclogo}
...
#+ATTR_LATEX: :options [logo=\bcattention, noborder=true, barre=none]{some title here}
#+BEGIN_bclogo
some text here
#+END_bclogo
Using a LaTeX special block is well suited here, unless you really want to use notes.

Answer 3

You can do it like this with a custom block in org-mode:
+begin_bclogo
some text here
+end_bclogo
Then, use a filter to modify the export like this:
(defun ox-mrkup-filter-special-block (text back-end info)
(let ((text (replace-regexp-in-string "\\\\begin{bclogo}" "\\\\begin{bclogo}[logo=\\\\bcattention, noborder=true, barre=none]{" text)))
(replace-regexp-in-string "\\\\end{bclogo}" "}\\\\end{bclogo}" text)))
(let ((org-export-filter-special-block-functions '(ox-mrkup-filter-special-block)))
(find-file (org-export-to-file 'latex "custom.tex")))
That exports to:
\begin{bclogo}[logo=\bcattention, noborder=true, barre=none]{
some text here
}\end{bclogo}
This seems to get close to what you want. I am not sure how you could get a body in the environment. I think you would need to use an attribute to set the text in {} and then use the text as the body. That is probably not easy to implement in a filter, and would be better implemented in a custom export.