Date sort LUA

local array = {
    { date = '21.13.2000' };
    { date = '25.12.2012' };
    { date = '10.01.2017' };
    { date = '10.01.2001' };
    { date = '15.11.2016' };
    { date = '21.12.2012' };
    { date = '11.12.2000' };
    { date = '05.11.2016' };
    { date = '21.12.2002' };
};

-- Date '21.12.2002' to number 20021221
function date2number_reverce(date)
    local t = {}
    local i = 0
    for s in string.gmatch(date, "%d+") do
        i = i + 1
        t[i] = s
    end

    t[1], t[2], t[3] = t[3], t[2], t[1]
    return tonumber(table.concat(t))
end

-- Bubble sort
for i = 1, #array do
    for j = i + 1, #array do
        if (date2number_reverce(array[i].date) > date2number_reverce(array[j].date)) then
            array[i], array[j] = array[j], array[i]
        end
    end
end


for i = 1, #array do
    print(array[i].date)
end