-- drop-tables.lua
-- Removes LaTeX tabular and tabularx environments (and their contents).
function RawBlock(el)
    if el.format == "tex" then
        -- Check for tabular or tabularx environment
        if el.text:match("\\begin%s*{%s*tabularx?%s*}") then
            return pandoc.Plain({pandoc.Str("[table omitted]")})
        end
    end
end