meta>MarcoAurelio |
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| -- Function allowing for consistent treatment of boolean-like wikitext input.
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| -- It works similarly to the template {{yesno}}.
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| 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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| -- should replace "val:lower()" with "mw.ustring.lower(val)" in the
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| -- following line.
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| val = type(val) == 'string' and val:lower() or val
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| if val == nil then
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| return nil
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| elseif val == true
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| or val == 'yes'
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| or val == 'y'
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| or val == 'true'
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| or val == 't'
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| or tonumber(val) == 1
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| then
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| return true
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| elseif val == false
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| or val == 'no'
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| or val == 'n'
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| or val == 'false'
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| or val == 'f'
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| or tonumber(val) == 0
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| then
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| return false
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| else
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| return default
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| end
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| end
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