Hi all,

I've started to write a derived backend based on the HTML one.  Since I
want my HTML file to be rather minimalist, I exclude as much as
possible.  While looking at org-html-template, I noticed the
(org-html--build-pre/postamble 'preamble info)
line.  I'm wondering, what does it do?  Including it in my backend does
not influence the result (admittedly, the Org file I'm testing it on is
quite simple for now).  I instrumented org-html--build-pre/postamble for
edebug, but it didn't help me a lot.

What is this for?  I guess it inserts whatever is in
org-html-preamble-format for the current language; anything else?  In
particular: most of this function deals with the case when
(plist-get info :html-preamble)
is non-nil.  When is it possible?

TIA,

-- 
Marcin Borkowski
http://octd.wmi.amu.edu.pl/en/Marcin_Borkowski
Adam Mickiewicz University

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