Module:Sandbox/Lemondoge/prevaluate

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Usage

!! SALT: {{pagelist | nspace = {{#if:{{{project| }}} | :{{{project}}}:}}Category | delim = <wbr /> | edelim = | separator = {{#switch:{{{separator|comma}}} | comma = comma | semicolon = ;  | dot = dot | pipe = pipe | dash =  –  | slash =  /  | none =   |  {{{separator}}}  }} | conjunction = {{#switch:{{{conjunction|}}} | and = and | or =  or  | none = {{#switch:{{{separator|comma}}} | comma =  and  | semicolon = ; or  | dot = dot | pipe = pipe | dash =  –  | slash =  /  | none =   |  {{{separator}}}  }} | {{#switch:{{{separator|}}} | comma | =  and  | semicolon = ; and  | dot = dot | pipe = pipe | dash =  –  | slash =  /  | none =   |  {{{separator}}}  }} }} {{#invoke:ArgRest|main|<nowiki>{{{1}}}</nowiki>|1}} }}yes

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local p = {}

--[[
TODO: It SEEMS like recurseInner is successfully preprocessing argRest. The one problem is that argRest is seeing this function as its parent, which means it receives the whole block of wikitext preValuate is given.
]]
function p.main(frame)
	-- Undo sanitization:
	local wikitext = frame.args[1] or ''
	if wikitext:match'nowiki' then
		wikitext = mw.text.unstripNoWiki(wikitext):gsub('&lt;', '<'):gsub('&gt;', '>')
	else error("<nowiki> missing from first parameter") end
	
	local argRestOnly = (require('Module:Yesno')(frame.args[2] or 'no') and "ArgRest|main|.+" or ".+")
	local salt = "!! SALT: "
	local function recurseInner(input) -- Dive through 
		local str = input:sub(3, -3)
		if input:find("^{{#invoke:" .. argRestOnly) then
			salt = salt .. frame:preprocess(input)
			return frame:preprocess(input)
		elseif str:match("#invoke:" .. argRestOnly) then
			return str:gsub("%{%b{}%}", recurseInner) .. "!!  thing   " .. input .. "   thingend"
		else
			return input
		end
	end
	
	local function doProcessing(str)
		str = str:sub(3, -3)
		local testity
		local j = str:gsub("%{%b{}%}", recurseInner):match("#invoke:" .. argRestOnly)
		--[[if true then
			salt = salt .. "!!   Salt2: " .. str:gsub("%{%b{}%}", recurseInner)
			--return "{{" .. frame:preprocess(str:gsub("%{%b{}%}", recurseInner)) .. "}}"
		end]]--
		return (j and frame:preprocess("{{" .. j .. "}}") or "{{" .. str .. "}}")
	end
	
	if false then 
		return wikitext:gsub("%{%b{}%}", doProcessing) .. salt
		--return wikitext:gsub("%{%b{}%}", doProcessing) 
	end
	return frame:preprocess(wikitext:gsub("%{%b{}%}", doProcessing)) .. salt
end

return p