local p = {}
function p._entityid(frame,id,alt)
if type(id) == 'string' then
id = mw.ustring.upper(mw.ustring.sub(id,1,1))..mw.ustring.sub(id,2)
if mw.ustring.match(id,'^Q%d+$') then
-- id is in the proper format for a Wikidata entity
if mw.wikibase.isValidEntityId(id) then
-- id is valid
id = mw.wikibase.getEntity(id)
if id then
-- entity exists
return id.id
end
end
else
id = mw.wikibase.getEntityIdForTitle(id)
if id then
-- id is a title that matches a Wikidata entity
local instanceOf = mw.wikibase.getBestStatements(id, 'P31')[1]
if instanceOf and instanceOf.mainsnak.datavalue.value.id ~= 'Q4167410' then
-- not disambiguation
return mw.wikibase.getEntity(id).id
end
end
end
end
return alt or nil
end
function p.entityid(frame)
return p._entityid(frame, frame.args[1], frame.args[2])
end
return p
