PATCH: Add tip to integrate spellchecking with #+LANGUAGE:

[Pedro A. Aranda]

 doc/org-manual.org: Add tip to integrate spellchecking with #+LANGUAGE:

* doc/org-manual.org: Show how to watch ~org-export-default-language~ in
your ELISP code to automatically adjust your spell-checker.

---

 doc/org-manual.org | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/doc/org-manual.org b/doc/org-manual.org
index 6cf51ebca..020fd061f 100644
--- a/doc/org-manual.org
+++ b/doc/org-manual.org
@@ -14075,6 +14075,18 @@ general options (see [[*Export Settings]]).
                '("AUTO" "polyglossia" t ("xelatex" "lualatex")))
   #+end_src

+  *TIP*: you can watch this variable in your ELISP code to interface
+  with your spellchecker:
+
+  #+begin_src emacs-lisp
+    (defun org-export-default-language-watcher (_ newval _ _)
+      ;; newval will hold the value defined in #+LANGUAGE:
+      )
+
+    (add-variable-watcher 'org-export-default-language
+                          #'org-export-default-language-watcher))
+  #+end_src
+
 - =LATEX_CLASS= ::

   #+cindex: @samp{LATEX_CLASS}, keyword
--
2.34.1