Editing Module:Sandbox/Galobtter/Shortdesc helper

local p = {}

local prepend = [[
window.sdh = {};

/* These messages can be changed to localize Shortdesc helper for your wiki. 
** If that is not necessary, then this can be removed, and English-language messages will be used. */
]]
local append = [[
mw.loader.getScript( 'https://en.wikipedia.org/w/load.php?modules=ext.gadget.libSettings' ).then( function() {
	mw.loader.load( 'https://en.wikipedia.org/w/load.php?modules=ext.gadget.Shortdesc-helper' );
})]]

function p.main(frame)
	local text = mw.title.new('MediaWiki:Gadget-Shortdesc-helper.js'):getContent()
	local content = text
		:match('var messages.-;')
		:gsub('var messages', 'window.sdh.messages')
		:gsub('\t\t', '\t')
		:gsub('\t};', '};')
	content = prepend..content..'\n\n'..append
	return frame:extensionTag ('syntaxhighlight', content, {lang = 'js'})
end

function p.append(frame)
	return frame:extensionTag ('syntaxhighlight', append, {lang = 'js'})
end

return p