local function fn(config, deck, deckfname, qs)
    local mcl = {}
    for i, card in ipairs(deck) do
        if card.note:find(qs) then
            table.insert(mcl, i)
        end
    end
    if #mcl >= 1 then
        io.write(string.format("Found %d match%s for %q:\n", #mcl, #mcl == 1 and "" or "es", qs))
    else
        io.write(string.format("No matches for %q\n", qs))
    end
    for _, i in ipairs(mcl) do
        io.write(string.format("%d %s\n", i, deck[i].note))
    end
end

return { desc = "(q)uery deck for cards (case-sensitive)", nd = true, nq = true, fn = fn }