Julian Burgos <jul...@hafro.is> wrote: > Dear list, > > My apologies for another very basic question. I'm wondering why I do > not get a table of contents when exporting the following file as pdf > > ---start org file ----------- > #+TITLE: Test > #+OPTIONS: toc:t num:nil > > * Part 1 > Some text > > * Part 2 > Some more text > ---end org file ----------- > > I do get the TOC when exporting as hmtl, though. >
I believe it's because of a rather technical latex limitation: latex writes TOC entries into a .toc file, which is then read back in when the \tableofcontents macro is expanded. When you specify num:nil asking for unnumbered sections, the latex exporter produces \section* markers, instead of the standard \section markers. But when latex processes those, it does not add anything to the .toc file. If org added a \tableofcontents, you would get just the title and an empty TOC. In order to prevent that, the latex exporter requires that both toc and num be non-nil - see l.1487 ff in lisp/org-latex.el: ,---- | ... | ;; table of contents | (when (and org-export-with-toc | (plist-get opt-plist :section-numbers)) | (funcall org-export-latex-format-toc-function | ...)) `---- The HTML exporter does this "by hand", so to speak, so it is not as constrained and can do the "right" thing. Nick
