This directory is about figuring out how to serve OPAC records. Files:

• README -- this file.
• z3950-opac-record-syntax.asn1 -- ASN.1 for the Z39.50 OPAC record format, copied from the consolidated ASN.1 of the standard and reformatted for clarity.
• sample-opac.xml -- sample OPAC record built simply by following the XML Schema at yaz/etc/opacxml.xsd
• test-opac.xml -- a second sample OPAC record, extracted from the tst_convert4 function in yaz/test/test_record_conv.c and reformatted.
• Makefile -- a simple controller for running the XSD validator on the sample XML files.
• supporting-opac-records.txt -- unstructured notes on how to build in the necessary support.

See also https://docs.google.com/document/d/1xwjrscPFfoCDG6u4efasYn0yjPRZphv-xRpIJneEq0U/edit#