Hello,

Matt Price <mopto...@gmail.com> writes:

> I am writing this interface to my university's learning management system:
> https://github.com/titaniumbones/Org-Marking-Mode/tree/use-structured-course-def.
> I am only using hte exporting system tangentially and I have not defined a
> new exporter. However, I would really like to be able to set some variable
> values in the header section of hte document, e.g.:
>
> #+ORG_LMS_COURSE: becomingmodern

You can add keywords specific to a given export back-end in its
definition, more precisely in :options-alist value. For example, in
"ox-texinfo", there is

    (org-export-define-backend 'texinfo
      '((bold . org-texinfo-bold))
      ...
      :options-alist
      '((:texinfo-filename "TEXINFO_FILENAME" nil nil t)
        ...))

which means `texinfo' back-end should recognize the "#+TEXINFO_FILENAME"
keyword, and store its value in the :texinfo-filename property from
"info" paramater, which is passed to each function.

You can write a derived back-end using this new keyword, along with
a template function that actually uses it. Look at the definition of
`beamer' back-end for an example.

HTH,

-- 
Nicolas Goaziou

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