Editing Module:Section Index

local p = {}
local lib = require('Module:Feature')
local search = require('Module:TableTools').includes

function p.main(frame)
	local args = require('Module:Arguments').getArgs(frame, {
		parentFirst = true,
		wrappers = {'Template:Section Index'}
	})
	return p._main(args)
end

function p._main(args)
	args[2] = args[2]:gsub('_',' ')
	local title = mw.title.makeTitle('',args[1],args[2])
	local pageContent = title:getContent():gsub('<!%-%-.-%-%->',''):gsub('^.-(==+)%s*','',1):gsub('\n.-(==+)%s*','%1'):gsub('%s*(==+)\n.-$',''):gsub('%s*==+%s*','//')
	--mw.logObject(pageContent)
	assert(pageContent,'Page does not exist')
	args.sections = lib.split(pageContent, '//' )
	-- mw.logObject(args.sections,'Before')
	if #args.sections > 1 then
		for i,s in ipairs(args.sections) do
			local repeated = 2
			for I = i+1,#args.sections do
				if args.sections[I] == s then
					args.sections[I] = args.sections[I] .. ' ' .. tostring(repeated)
					repeated = repeated + 1
				end
			end
		end
	end
	-- mw.logObject(args.sections,'After')
	for k,v in ipairs(args.sections) do
		if v == args[2] then
			return tostring(k)
		end
	end
	return ''
end


return p
File Pages	==Summary====Licensing=={{Fairuse}}{{File\|}}
Dynamic Page List	¦²«»²{¦}²«»«/»«!----»
Array in DPL	¹^2{}^2^2{¹}^2
Parser Functions	{{#if:\|\|}} {{#if:<condition>\|<result if true>\|<result if false>}} {{#ifeq:\|\|\|}} {{#ifeq:<text1>\|<text2>\|<result if text1=text2>\|<result if text1≠text2>}} {{#expr:}} {{#expr:<mathematical expression>}} {{#switch:\|\|#default=}} {{#switch:<text1>\|<text2>=<result if text1=text2>\|<text3>=<result if text1=text3>\|#default=<result if no valid match>}} {{#replace:\|\|}} {{#replace:<text1>\|<plain text to find in text1>\|<plain text to insert in place of the text found>}} {{#titleparts:}} {{#replace:<page name>}} {{#tag:\|}} {{#tag:<name of html tag>\|<content inside html tag>}}
Markup	{{}}\|[][[]][[Category:]]#REDIRECT [[]] [[Category:Redirect Pages]]<code></code><includeonly></includeonly><noinclude></noinclude><nowiki></nowiki><!----><br>§
Notices	{{Stub\|}}{{Stub Dialogue}}{{Upcoming}}{{Under Construction}}{{Placeholder\|}}
Magic Words	{{!}}{{formatnum:}}{{lc:}}{{uc:}}{{PAGENAME}}{{FULLPAGENAME}}{{ROOTPAGENAME}}{{BASEPAGENAME}}{{SUBPAGENAME}}{{DISPLAYTITLE:\|noreplace}}__TOC____NOTOC____EXPECTUNUSEDCATEGORY____HIDDENCAT__
HTML Entities	— ,