Export all cited references into a single bibtex file. This is most useful when writing collaboratively while using a large, private bibtex collection. Using the bibexport filter allows to create a reduced bibtex file suitable for sharing with collaborators.

This filter expects the bibexport executable to be installed and in the user's PATH. Installation differs across systems. Users of the TeX Live distribution can install the bibexport package by running

tlmgr install bibexport

Windows appears to be unsupported at the moment.

The filter runs bibexport on a temporary aux file, creating the file bibexport.bib on success. The name of the temporary .aux file can be set via the auxfile meta value; if no value is specified, bibexport.aux will be used as filename.

Please note that bibexport prints messages to stdout. Pandoc should be called with the -o or --output option instead of redirecting stdout to a file. E.g.

pandoc --lua-filter=bibexport.lua article.md -o article.html

or, when the filter is called in a one-off fashion

pandoc --lua-filter=bibexport.lua article.md -o /dev/null