The reason I reported it was that I wrote a parser for LDAP schema based directly on the formal grammar, downloaded all the schema from OpenLDAP as a test, and that was the only schema that broke, and only on the one element. I did not have any trouble with the OpenLDAP software accepting the schema. If you use a grammar builder (I used ANTLR) rather than a hand-coded parser, being permissive makes it a bit more complex. Allowing the elements to appear in any order would be easy to parse for the RFC 4512 elements, because they happen to be defined with markers ("NAME", "DESC" and so on) that makes them easy to differentiate, but then enforcing at-most-once semantics on the elements requires either an additional pass or some hand coded predicates to check for duplicates in a data structure being built on- the-fly.

Thanks for the feedback. It's now fixed in HEAD/re24.

p.

Ing. Pierangelo Masarati OpenLDAP Core Team

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