Module:Interwiki

-- \/  | ___   __| |_   _| | ___ _|_ _|_ __ | |_ ___ _ ____      _(_) | _(_)  | |\/| |/ _ \ / _` | | | | |/ _ (_)| || '_ \| __/ _ \ '__\ \ /\ / / | |/ / |  | |  | | (_) | (_| | |_| | |  __/_ | || | | | ||  __/ |   \ V  V /| |   <| |  |_|  |_|\___/ \__,_|\__,_|_|\___(_)___|_| |_|\__\___|_|    \_/\_/ |_|_|\_\_| History: * Originally written by user:Innocent_bystander ( https://sv.wikipedia.org/wiki/Modul:Interwiki ) * Forked and modified by user:Jarekt

-- Properties to use as redirects local redirectProperties = { 'P301', -- "category's main topic" 'P460', -- "said to be the same as" 'P1420', -- "taxon synonym" 'P1753' -- "list related to category" }

-- ======================================= -- === Local Functions =================== -- =======================================

-- -- Based on frame structure create "args" table with all the input parameters. -- All inputs are non case-sensitive. Input values are trimmed and empty string a -- re converted to nils. local function getArgs(frame) local function normalize_input_args(input_args, output_args) for name, value in pairs( input_args ) do 			if type(name)=='string' and value ~= '' then output_args[string.lower(name)] = value end end return output_args end local args = {} args = normalize_input_args(frame:getParent.args, args) args = normalize_input_args(frame.args, args) return args end

-- convert from a list to a set local function list2set(list, set) set = set or {} for _, v in ipairs(list or {}) do set[v]=true end return set end

-- Collect one or more item ID from a property local function getProperty(entity, prop) propVal = {} if entity and entity.claims then for _, statement in pairs(entity:getBestStatements( prop )) do			if statement.mainsnak.snaktype == 'value' then table.insert(propVal, statement.mainsnak.datavalue.value.id) end end end return propVal end

-- ================================================== -- === External functions =========================== -- ================================================== local p = {}

-- Purpose: create old wikitext stype interwiki links (links shown on the left -- side of the page) to add or replace interwiki links based on Wikidata -- sitelinks -- Use as follows: -- *  will examine wikidata item and see if --       any "redirectProperties" are present if any are than the first item --      ID will be used. We will than proceed to add to interwiki links in --      addition to the ones based on Wikidata sitelinks -- *  specify an item to draw interwikis from -- *  will display interwikilinks as bullet list --       to allow debuging function p.interwiki(frame) -- process inputs local args = getArgs(frame) local qid = args.qid         -- get uses parameter "qid"  if provided local test = args.test or '0' -- get uses parameter "test" if provided test = (test=='yes' or test=='y' or test=='true' or test=='1')    -- convert to boolean local fStr = (test and '*w:%s:%s') or '%s:%s'             -- link format: in normal or in test mode -- Excludes some wikiprojects that are not Wikipedia, even if their code ends with 'wiki' -- The last one is the name of the current project local excludedProjects = {'wikidatawiki', 'commonswiki', 'specieswiki', 'metawiki', 'simplewiki', 'mediawikiwiki', 'sourceswiki', 'wikimaniawiki', 'incubatorwiki', mw.wikibase.getGlobalSiteId} excludedProjects = list2set(excludedProjects) -- convert from a list to a set

-- current page is connected through a sitelink to an wikidata entity local entity = mw.wikibase.getEntity if entity then -- find wikidata item from which to copy interwiki links if (not qid or qid == '') then for _, prop in ipairs(redirectProperties) do				qid = getProperty(entity, prop)[1] -- follow wikidata's item redirect-like properties if qid then break end end end -- check if we are at category item local instanceOf = list2set(getProperty(entity, 'P31')) -- place item's instances-of in a set local isCat     = instanceOf['Q4167836']               -- this entity is a instance of Wikimedia category -- build a list of sites we will not link to, so we do not overwrite existing interwiki links -- we will overwrite category sitelinks with article sitelinks if both are present if qid and (not isCat) then -- in case "entity" already has some sitelinks than exclude them excludedProjects = list2set(entity.sitelinks, excludedProjects) end end -- build interwiki table based on wikidata page with item ID 'qid' local intWikiTable = {} if qid then entity = mw.wikibase.getEntity(qid) if entity and entity.sitelinks then for _, sitelink in pairs(entity.sitelinks) do				local site = sitelink.site -- site names usually have language+"wiki" like "enwiki", etc local lang = mw.ustring.sub( site, 1, -5) -- split site into language and project parts local proj = mw.ustring.sub( site, -4) if not excludedProjects[site] and proj=='wiki' then -- excludes sites on the list as well as Wikisource, Wikiquote, Wikivoyage etc lang = mw.ustring.gsub(lang, '_','-') -- if extracted language has any underscores replace it with a minus table.insert(intWikiTable, mw.ustring.format(fStr, lang, sitelink.title) ) -- put together a interwiki-link to other projects end end end end return table.concat(intWikiTable, '\n') -- change table of strings to a single string: one row per line end

return p