“モジュール:If empty” のwerson間の差分

モジュール:If empty (Ipemoto a=nukar)

780 バイト追加、 2024 ppm 3 2024-03-04T13:38:58+00:00up 4 312024 (Kun.)

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1版をインポートしました

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回編集

@@ 2行目: / 2行目: @@
 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:Ifempty', 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
-	local lastk = 0
 	for k,v in ipairs(args) do
 		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:テンプレート呼び出しエラーのあるページ/Template:Ifempty]]', {group = 'TrackingCategory'})
+				frame:extensionTag('references', '', {group = 'TrackingCategory'})
+			end
 			return v
 		end
-		lastk = k
 	end
 end
 return p