highlight math in tables

[Konfekt]

Expected: The math syntax highlighting is enabled in the cells in tables just as elsewhere.

Found: The math syntax highlighting is disabled in the cells in tables, as seen in

[andreasmhallberg]

The same goes fors many other types of highlighting in tables, including references (@someref1999) and font markup ([text]{.smallcaps}).

[Konfekt]

Looking at

" syntax/pandoc.vim (line 385)
" Tables: {{{2

it is not clear to me where the syntax highlighting of the cell contents are defined. Perhaps there is simply none? Where is the syntax highlighting for the cells implicitly being disabled then?

[fmoralesc]

The highlighting for spans is not contained in tables, because there are no rules for the contents of a table (not the headers and lines, but the text themselves). If tables were proper regions, we should make those contain the spans; I'm not sure they are proper regions in all cases.