[DFDL-WG] delimited binary data - clarifications

[Mike Beckerle]

Daffodil project is implementing various packed formats, and looking at the
TLOG schema on the DFDL Schemas site.

The DFDL spec is clear that lengthKind delimited is allowed for packed
formats (all variants of packed) and hexBinary.

My question is whether there is any restriction on the generality of this
that was intended, but not stated in the spec, where we should be issuing a
clarification.

E.g.,


   1. Can binary data have all of initiators, terminators, and separators?
   2. Is there a restriction on the charset encoding used to specify these,
   e.g., SBCS? Or do the byte patterns being used to scan for these require
   conversion of the specified delimiter to bytes from any supported encoding?
   3. Do escape schemes apply to delimited binary?

If, in fact, all these things are allowed, then I believe we should add a
one-liner to section 12.3.2.2 specifying that all aspects of delimited
parsing including the above, are specifically allowed.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.ogf.org/pipermail/dfdl-wg/attachments/20171108/940abaff/attachment.html>