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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}}.
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return function (val, default)
return function (val, default)
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-- If your wiki uses non-ascii characters for any of "yes", "no", etc., you
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val = type(val) == 'string' and mw.ustring.lower(val) or val -- put in lower case
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-- should replace "val:lower()" with "mw.ustring.lower(val)" in the
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if val == nil then
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-- following line.
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return nil
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val = type(val) == 'string' and val:lower() or val
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elseif val == false or val == 'нет' or val == 'н' or val == 'no' or val == 'n' or val == 'false' or tonumber(val) == 0 then
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if val == nil then
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return false
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return nil
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elseif val == true or val == 'да' or val == 'д' or val == 'yes' or val == 'y' or val == 'true' or tonumber(val) == 1 then