Module:SDcat/sandbox explained

--SDcatModule to check whether local short description matches that on Wikidata--

local p =

---------------------------------------------------------------------------------qid=(it defaults to the associated qid of the current article if omitted)and the local short description passed as |sd=It returns a category if there is an associated Wikidata entity.It returns one of the following tracking categories, as appropriate:

• Category:Short description matches Wikidata (case-insensitive)
• Category:Short description is different from Wikidata
• Category:Short description with empty Wikidata description

For testing purposes, a link prefix |lp= may be set to ":" to make the categories visible.--

-- function exported for use in other modules-- (local short description, Wikidata entity-ID, link prefix)p._setCat = function(sdesc, itemID, lp) if not mw.wikibase then return nil end if itemID

"" then itemID = nil end -- Wikidata description field local wdesc = (mw.wikibase.getDescription(itemID) or ""):lower if wdesc

"" then return "" elseif wdesc

sdesc then return "" else return "" endend

-- function exported for call from #invokep.setCat = function(frame) local args if frame.args.sd then args = frame.args else args = frame:getParent.args end -- local short description local sdesc = mw.text.trim(args.sd or ""):lower -- Wikidata entity-ID local itemID = mw.text.trim(args.qid or "") -- link prefix, strip quotes local lp = mw.text.trim(args.lp or ""):gsub('"', ) return p._setCat(sdesc, itemID, lp)end

return p