Module:Yesno: Difference between revisions

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en>Mr. Stradivarius
(stop making the default "default" value true, as we run into problems if you need to distinguish between false and nil)
m (32 revisions imported)
 
(13 intermediate revisions by 9 users not shown)
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-- Function allowing for consistent treatment of boolean-like wikitext input.
-- Function allowing for consistent treatment of boolean-like wikitext input.
-- It works similarly to the template {{yesno}}.
-- It works similarly to the template {{yesno}}.
return function (val, default)
return function (val, default)
    val = type(val) == 'string' and mw.ustring.lower(val) or val -- put in lower case
-- If your wiki uses non-ascii characters for any of "yes", "no", etc., you
    if val == nil then
-- should replace "val:lower()" with "mw.ustring.lower(val)" in the
        return nil
-- following line.
    elseif val == false or val == 'no' or val == 'n' or val == 'false' or tonumber(val) == 0 then
val = type(val) == 'string' and val:lower() or val
        return false
if val == nil then
    elseif val == true or val == 'yes' or val == 'y' or val == 'true' or tonumber(val) == 1 then
return nil
        return true
elseif val == true
    else
or val == 'yes'
        return default
or val == 'y'
    end
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
end

Latest revision as of 22:59, 22 September 2024

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This is a meta module.

This module is meant to be used only by other modules. It should not be invoked in wikitext.

This module was adapted from Module:Yesno on Wikipedia.
Adaptation is noted for reference and attribution only. This module may differ from the original in function or in usage. The documentation on Wikipedia may be helpful in understanding this module.


-- 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