Difference between revisions of "Module:Yesno"

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(removing code that's no longer used)
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local p = {}
+
-- Function allowing for consistent treatment of boolean-like wikitext input.
 +
-- It works similarly to the template {{yesno}}.
  
function p.yesno(frame)
+
return function (val, default)
 
+
-- If your wiki uses non-ascii characters for any of "yes", "no", etc., you
    -- defaults
+
-- should replace "val:lower()" with "mw.ustring.lower(val)" in the
    local retvals = {
+
-- following line.
        yes  = "yes",
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val = type(val) == 'string' and val:lower() or val
        no   = "",
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if val == nil then
        ["¬"] = ""
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return nil
    }
+
elseif val == true
 
+
or val == 'yes'
    -- Allow arguments to override defaults.
+
or val == 'y'
    -- 'any' tracks the presence of any arguments at all.
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or val == 'true'
    local args = frame.args
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or val == 't'
    local any = false
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or val == 'on'
    for k,v in pairs(args) do
+
or tonumber(val) == 1
        any = true
+
then
        retvals[k] = v
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return true
    end
+
elseif val == false
    -- If there are no arguments, try and get them from the parent frame.
+
or val == 'no'
    if any == false then
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or val == 'n'
        local pframe = frame:getParent()
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or val == 'false'
        args = pframe.args
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or val == 'f'
        for k,v in pairs(args) do
+
or val == 'off'
            retvals[k] = v
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or tonumber(val) == 0
        end
+
then
    end   
+
return false
 
+
else
    val = args[1]
+
return default
 
+
end
    -- First deal with the case if val is nil or "¬", then deal with other cases.
 
    if val == nil or val == '¬' then
 
        return retvals['¬']
 
    end
 
 
 
    val = val:lower()          -- Make lowercase.
 
    val = val:match'^%s*(.*%S)' or '' -- Trim whitespace.
 
 
 
    if val == '' then
 
        return retvals['blank'] or retvals['no']
 
    elseif val == 'n' or val == 'no' or val == '0' then
 
        return retvals['no']
 
    elseif val == 'y' or val == 'yes' or val == '1' or retvals['def'] == nil then
 
        return retvals['yes']
 
    else
 
        return retvals['def']
 
    end
 
 
end
 
end
 
return p
 

Latest revision as of 23:54, 3 October 2018

Documentation for this module may be created at Module:Yesno/doc

-- 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