yesno

-- Function allowing for consistent treatment of boolean-like wikitext input. -- It works similarly to the template {{yesno}}.  return function (val, default) -- If your wiki uses non-ascii characters for any of "yes", "no", etc., you -- should replace "val:lower()" with "mw.ustring.lower(val)" in the -- following line. val = type(val) == 'string' and val:lower() or val if val == nil then return nil elseif val == true  or val == 'yes' or val == 'y' or val == 'true' or val == 't' or val == 'да' or val == 'д'         or val == 'x'         or val == 'х'         or val == '+'           or val == 'e'         or val == 'э'         or val == 'ebet'         or val == 'эбет' or tonumber(val) == 1 then return true elseif val == false or val == 'no' or val == 'n' or val == 'false' or val == 'f' or val == 'нет' or val == 'н' or val == '-' or val == 'ёкъ' or val == 'yoq' or tonumber(val) == 0 then return false else return default end end