Edición de «Módulo:If empty»
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| Revisión actual | Tu texto | ||
| Línea 3: | Línea 3: | ||
function p.main(frame) | function p.main(frame) | ||
local args = require('Module:Arguments').getArgs(frame, {wrappers = 'Template:If empty', removeBlanks = false}) | local args = require('Module:Arguments').getArgs(frame, {wrappers = 'Template:If empty', removeBlanks = false}) | ||
-- For backwards compatibility reasons, the first 8 parameters can be unset instead of being blank, | |||
-- even though there's really no legitimate use case for this. At some point, this will be removed. | |||
local lowestNil = math.huge | |||
for i = 8,1,-1 do | |||
if args[i] == nil then | |||
args[i] = '' | |||
lowestNil = i | |||
end | |||
end | |||
for k,v in ipairs(args) do | for k,v in ipairs(args) do | ||
if v ~= '' then | if v ~= '' then | ||
if lowestNil < k then | |||
-- If any uses of this template depend on the behavior above, add them to a tracking category. | |||
-- This is a rather fragile, convoluted, hacky way to do it, but it ensures that this module's output won't be modified | |||
-- by it. | |||
frame:extensionTag('ref', '[[Category:Instances of Template:If_empty missing arguments]]', {group = 'TrackingCategory'}) | |||
frame:extensionTag('references', '', {group = 'TrackingCategory'}) | |||
end | |||
return v | return v | ||
end | end | ||
end | end | ||
end | end | ||
return p | return p | ||