Bastien <b...@altern.org> writes:
> We need to make `org-html--build-mathjax-config' depends on whether
> there is an latex-fragment element in the parse tree. Otherwise,
> including the MathJAX config is useless.
>
> I've been looking at this this morning.
>
> Is there an org-element function to test whether an element/object
> of a certain type is present in the parse tree?
On course, it is `org-element-map' (you can have a look at its
docstring, there is one such example). So, assuming you have access to
communication channel (a.k.a. info argument):
(org-element-map (plist-get info :parse-tree)
'(latex-fragment latex-environment) 'identity info t)
will be non-nil when either an exportable `latex-fragment' object or
a `latex-environment' element is found within the parse tree.
Regards,
--
Nicolas Goaziou
