dbtex_delims — Generates delimiters around embedded TeX equations in output
<?dbtex delims="no"|"yes"?>Use the <?dbtex delims?> PI as a
child of a textobject containing embedded TeX
markup, to cause that markup to be surrounded by
$ delimiter characters in output.
This feature is useful for print/PDF output only if you use the obsolete and now unsupported PassiveTeX XSL-FO engine.