IntToRoman

IntToRomanStr = function(int)
    if (int < 1) then
        return "0";

    elseif (int > 5000) then
        return "";
    end -- if/else

    local str = "";
    local digits = {
        {1000, "M"},
        {500,  "D"},
        {100,  "C"},
        {50,   "L"},
        {10,   "X"},
        {5,    "V"},
        {1,    "I"}
    };
    local subs = {
        {"CCCC", "CD"},
        {"XXXX", "XL"},
        {"IIII", "IV"},
        {"DCD", "CM"},
        {"LXL", "XC"},
        {"VIV", "IX"}
    };

    for i = 1, table.getn(digits) do
        for y = 1, 1000 do
            if (int < digits[i][1]) then
                break;
            end -- if

            int = int-digits[i][1];
            str = string.format("%s%s", str, digits[i][2]);
        end -- for
    end -- for

    for i = 1, table.getn(subs) do
        str = string.gsub(str, subs[i][1], subs[i][2]);
    end -- for

    return str;
end -- function