[zeromq-dev] Devices and config files

[Pieter Hintjens]

On Tue, Aug 24, 2010 at 2:02 PM, gonzalo diethelm <gdiethelm at dcv.cl> wrote:
> Ok. Any pointers yet?

Here is a sketch.  http://rfc.zeromq.org/spec:4

Basically it's stripped down to the minimum, and should be parsable
with simple code.  With regexps, trivial.  Without, a little more work
but nothing as complex as XML or JSON.

>> Sure.  Do we actually have use cases for binary subscriptions or is
>> this theoretical?
>
> I have seen a couple on the mailing list. I seem to remember people
> explicitly including the terminating zero so that they were asking for a
> specific topic and NOT a prefix.

Sure, but IMO that's more about semantics than encoding.  I.e.
"subscribe to this string" as  compared to "subscribe to this prefix".

> I would think you want to specify the configuration (for a device,
> endpoint, whatever) as a string that can be parsed. This string could
> come from a config file, a database, a broker, memory in the running
> program, etc.

Yes, a string or stream of strings.  I have this horrid feeling we'll
end up back with XML but having written hundreds of thousands of line
of XML over the last years, I'd really like to find a simpler language
that covers our needs.  Not just about less reliance on external
parsers but also less verbosity.  Anyhow, ZPL is a sketch.

-
Pieter Hintjens
iMatix - www.imatix.com