Module:Coxeter–Dynkin diagram and Module:Coxeter–Dynkin diagram/sandbox: Difference between pages

Content deleted Content added

@@ Line 2: / Line 2: @@
 -- See the template documentation or any example for how it is used and works.
 local p = {}
+-- list of file names (minus 'CDel ' and extension) which are available as an
+-- SVG version which must be perfectly compatible in appearance and public domain.
+-- Uses spaces not underscores.
+local has_svg = {'nodes', 'node h', '2', '3', '4', '5', '6', '7', '8', '9',
+	'10', '11',
+	'label2'}
+function show_image(x, double)
+	local suffix = "|link=]]"
+	if double then
+		suffix = "|x46px|link=]]"
+	end
+	for i, svgfile in ipairs(has_svg) do
+		if svgfile == string.gsub(x, '_', ' ') then
+			return "[[File:CDel_" .. x .. ".svg" .. suffix
+		end
+	end
+	return "[[File:CDel_" .. x .. ".png" .. suffix
+end
 function p.CDD(frame)
@@ Line 13: / Line 33: @@
 	-- For calling from other Lua modules.
 	local body ='<span style="display:inline-block;">'         -- create and start the output string
+	local double = false                                       -- experimental only, scale to 2x and see what happens
 	for v, x in ipairs(args) do                                -- process params, ignoring any names
-		if (x ~= '') then					-- check for null/empty names
+		if (x == 'DOUBLE') then
+			double = true
-        		body = body .. "[[File:CDel_" .. x .. ".png|link=]]"   -- write file for this parameter
+		elseif (x ~= '') then						-- check for null/empty names
+        	body = body .. show_image(x, double)    -- write file for this parameter
 		end
 	end