-- Calculates the width of the span box for [[Template:Flaglist]] -- based on the specified image size  local p = {}  function p.luawidth(size) --For use within Lua  local w  if string.find(size,"^%d+x%d+px$") then -- width and height (eg. 20x10px)  -- use specified width  w = tonumber(string.match(size,"(%d+)x%d+px")) elseif string.find(size,"^%d+px$") then -- width only (eg. 20px)  -- use specified width  w = tonumber(string.match(size,"(%d+)px")) elseif string.find(size,"^x%d+px$") then -- height only (eg. x10px)  -- assume a width based on the height  local h = tonumber(string.match(size,"x(%d+)px"))  w = h * 2.2  w = math.floor(w+0.5) -- round to integer else -- empty or invalid input  w = 23 -- default width for flagicons end  w = w + 7 -- minimum whitespace between icon and link return tostring(w)  end  function p.width(frame) --For external use  return p.luawidth(frame["args"][1])  end  return p