Module:Sandbox/Matroc/ConvertRomanDate explained

-- The Main purpose is to convert ROMAN dates to Arabic numerals-- wjk - Matroc local p =

function p.romantonum(frame) local RN = local convert = 0 local x, y = 0 local input = frame.args[1] or "error" if input

"" then error("Bad Input Argument! No Data!") end input = input:upper input = input:match'^%s*(.*%S)' -- trim spaces at both ends local err = (string.gsub(input,"[MDCLXVI]","")) if err:len ~= 0 then error("Bad Input Argument! only MDCLXVI as characters allowed") end local i = 1 local strlen = string.len(input)

while i < strlen do x, y = RN[string.sub(input,i,i) ], RN[string.sub(input,i+1,i+1) ] if x < y then convert = convert + (y - x) i = i + 2 else convert = convert + x i = i + 1 end end

if i <= strlen then convert = convert + RN[string.sub(input,i,i) ] end return convert endreturn p