Editing Module:Yesno

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-- Function allowing for consistent treatment of boolean-like wikitext input.
-- This is a simplified, Lua-only replacement for the template {{yesno}}. It provides a consistent
-- It works similarly to the template {{yesno}}.
-- interface for users entering boolean or boolean-style input.
 
return function (val, default)
return function (val, default)
-- If your wiki uses non-ascii characters for any of "yes", "no", etc., you
    val = type(val) == 'string' and mw.ustring.lower(val) or val -- put in lower case
-- should replace "val:lower()" with "mw.ustring.lower(val)" in the
    if not val or val == 'no' or val == 'n' or val == 'false' or tonumber(val) == 0 then
-- following line.
        return false
val = type(val) == 'string' and val:lower() or val
    elseif val == true or val == 'yes' or val == 'y' or val == 'true' or tonumber(val) == 1 then
if val == nil then
        return true
return nil
    elseif default ~= nil then
elseif val == true
        return default
or val == 'yes'
    else
or val == 'y'
        return true
or val == 'true'
    end
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
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