Module:Yesno

This module is currently protected from editing as it is a high-use module. Edits made to it will affect many pages. Please discuss changes on the talk page before implementing them. Test changes in the module's /sandbox or in your sandbox.

Copyright

This page uses content originally from Wikipedia's Module:Yesno page; Wikipedia content is licensed under a Creative Commons Attribution-ShareAlike License 4.0. (view page authors).

• Material on this page original to Wikipedia may be used commercially.
• Material on this page original to Fanlore may not be used commercially.

---

-- 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 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 tonumber(val) == 0
	then
		return false
	else
		return default
	end
end