Does anybody know whether the MARC formats at: <http://www.loc.gov/marc/authority/> <http://www.loc.gov/marc/bibliographic/> <http://www.loc.gov/marc/classification/> <http://www.loc.gov/marc/community/> <http://www.loc.gov/marc/holdings/> are encoded in an XML format that one might use for processing/validation of the leader, field tags, indicator codes, subfield codes, field and subfield repeatability, and field and subfield requiredness. Something akin to the codepoint table in XML at: <http://www.loc.gov/marc/specifications/codetables.xml> Thanks, Andy.