ሞድዩል:Numbers

Documentation for this module may be created at ሞድዩል:Numbers/doc

local z = {}
    
function z.Roman(frame)
  local number,arguments,parent
  local MinorRomanNumbers4000 = {
     {3000, "MMM"},{2000, "MM"},{1000, "M"},
     {900, "CM"}, {800, "DCCC"}, {700, "DCC"}, {600, "DC"}, {500, "D"}, {400, "CD"},
     {300, "CCC"}, {200, "CC"}, {100, "C"},
     {90, "XC"},{80, "LXXX"},{70, "LXX"},{60, "LX"}, {50, "L"}, {40, "XL"}, 
     {30, "XXX"},{20, "XX"},{10, "X"},
     {9, "IX"}, {8, "VIII"},{7, "VII"},{6, "VI"}, {5, "V"}, {4, "IV"},
     {3, "III"},{2, "II"}, {1, "I"} 
  }
  if type(frame) == 'number' then -- To be able to call it from another module easily
      number = frame
  else
      arguments = frame.args;
      parent     = frame:getParent();
      number     = tonumber(arguments[1] or parent.args[1]) --Decimal number to be converted to Roman numerals
  end

  if number == nil or number == "" or number >= 4000 then return "" end
  
  local result = ''
    
  for _, v in ipairs( MinorRomanNumbers4000 ) do
    local value, letters = unpack( v )
    
    if number >= value then
       	number    = number - value
       	result = result .. letters
    end
  end
  
  return result
end

return z