Module:Yesno

-- This is a simplified, Lua-only replacement for the template. It provides a consistent -- interface for users entering boolean or boolean-style input. return function (val, default) val = type(val) == 'string' and mw.ustring.lower(val) or val -- put in lower case if not val or val == 'no' or val == 'n' or val == 'false' or tonumber(val) == 0 then return false elseif val == true or val == 'yes' or val == 'y' or val == 'true' or tonumber(val) == 1 then return true elseif default ~= nil then return default else return true end end