--[[ Cross validation with wikidata: parse the wikitext of a value related to wikidata and see if they are close enough. ]]  local CrossValidate = {} CrossValidate.CrossValidateResult = { 	INVALID_WIKITEXT='לא ידוע', --wikitext is empty or too complex 	MISSING_WIKIDATA='חסר', -- data doesnt exist in wikidata (no entity/no claim) 	INCOMPATIBLE='לא מתאים', 	COMPATIBLE='מתאים', 	MISSING_WIKIDATA_LABEL='חסרה תווית עברית' }  function CrossValidate.maintainceCategory(value, propertyName)  	if value==CrossValidate.CrossValidateResult.INVALID_WIKITEXT then return '' end 	return '[[קטגוריה: ויקינתונים - השוואת ערכים: ' .. value.. ']]' ..  '[[קטגוריה: ויקינתונים - השוואת ערכים: ' .. value.. ': '..(mw.wikibase.label( propertyName) or propertyName)..']]' end --function CrossValidate.crossValidate( wikitext, propertyName, allowMulti, allowNA, entityId, multiSeperator, optionalQualifier, genderAware ) function CrossValidate.crossValidate( wikitext, propertyName, entityId ) 	 	if wikitext == nil or wikitext == '-' or #wikitext ==0 then  		return CrossValidate.CrossValidateResult.INVALID_WIKITEXT -- comparing to null wikitext is meaningless 	end          if entityId == nil then     	entityId = mw.wikibase.getEntityIdForCurrentPage()     end 	if entityId==nil then 		if mw.title.getCurrentTitle().namespace==0 then 			return CrossValidate.CrossValidateResult.MISSING_WIKIDATA 		else 			return CrossValidate.CrossValidateResult.INVALID_WIKITEXT 		end 	end     local propertyVals = mw.wikibase.getBestStatements(entityId, propertyName)     if (not propertyVals) or (#propertyVals==0) then return CrossValidate.CrossValidateResult.MISSING_WIKIDATA end --no such property for this item     local resTable = {}     local missingTranslation = false     local isEqual = true     for i, property in ipairs(propertyVals) do 	    local propValue = property.mainsnak and property.mainsnak.datavalue 	    if not propValue then      		return CrossValidate.CrossValidateResult.MISSING_WIKIDATA -- no value/someone etc are considered as missing 		end 		 	    if propValue['type'] == 'wikibase-entityid' then 	    	local localLabel, langLabel = mw.wikibase.getLabelWithLang( "Q" .. propValue.value['numeric-id'] ) 	    	local isLocalLabel = langLabel=='he' 	    	if not isLocalLabel then 	    		return CrossValidate.CrossValidateResult.MISSING_WIKIDATA_LABEL 	    	end 	    	local isCompatible = mw.ustring.find(wikitext, localLabel, 1, true) 	    	if not isCompatible then 	    		local sitelink = mw.wikibase.sitelink( "Q" .. propValue.value['numeric-id'] ) 	    		isCompatible = sitelink and mw.ustring.find(wikitext, sitelink, 1, true) 	    	end 			if not  isCompatible then 				local entityObject =  mw.wikibase.getEntity( "Q" .. propValue.value['numeric-id'] ) 				local entityAliases = entityObject and entityObject.aliases and entityObject.aliases['he'] 				if entityAliases then 					for _, curAlias in ipairs(entityAliases) do 						isCompatible = isCompatible or mw.ustring.find(wikitext, curAlias.value, 1, true) 					end 				end 			end 			         	if not isCompatible then         		return CrossValidate.CrossValidateResult.INCOMPATIBLE         	end 	    elseif propValue['type'] == 'string' then 	    	local isImage = (property.mainsnak.datatype=='commonsMedia') 	    	if isImage then 	    		return CrossValidate.CrossValidateResult.INVALID_WIKITEXT -- images are too complex 	    	else 	    		if not (mw.ustring.find(wikitext, propValue.value, 1, true)) then 	    			return CrossValidate.CrossValidateResult.INCOMPATIBLE 	    		end 	    	end     	elseif propValue['type'] == 'monolingualtext' then     		if not mw.ustring.find(wikitext, propValue.value.text, 1, true) then     			return CrossValidate.CrossValidateResult.INCOMPATIBLE     		end 	    elseif propValue['type'] == 'quantity' then 	    	return MISSING_WIKIDATA -- TODO: parse quantity and units 	    elseif propValue['type'] == 'time' then 	    	local timeValue = mw.wikibase.renderSnak( property.mainsnak ) 	    	if timeValue ~= wikitext and mw.ustring.gsub(timeValue, '^(%d+ %a+) (%d+)$', '[[%1]] [[%2]]')  ~= wikitext then     			-- TODO: once we trust date parsing this can return INCOMPATIBLE     			return CrossValidate.CrossValidateResult.INVALID_WIKITEXT 	    	end 	    else 	    	return CrossValidate.CrossValidateResult.INVALID_WIKITEXT -- ignore other types 	    end 	end 	 	return CrossValidate.CrossValidateResult.COMPATIBLE end  return CrossValidate