using provide save enable parsers apache candidate schema level more page refer component january family inclusions 2010 fully option information except support serialize normalization experimental recommendation namespaces that xinclude native program will compliant recommendations load components language parser this conforming upon continues does model other object build version according evaluation document easy complete performance able written parse oasis checking extremely designators building xerces definition documents xerces2 apis correctly provides processors interface framework reference section manual implementation modular specification provided configurations core catalogs high also design handles described