-- 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 == 'on'  or val == 'ใช่'  or val == 'จริง'  or val == 'ถูก'  or tonumber(val) == 1  then  return true  elseif val == false  or val == 'no'  or val == 'n'  or val == 'false'  or val == 'f'  or val == 'off'  or val == 'ไม่'  or val == 'ไม่ใช่'  or val == 'เท็จ'  or val == 'ผิด'  or tonumber(val) == 0  then  return false  else  return default  end end