RE: [xml-dev] JavaScript (was Re: [xml-dev] Whither XML ?)

[Liam R E Quin <liam@w3.org>]

On Thu, 2010-11-11 at 23:00 +0200, Alexander Philippou wrote:
> > > Just use Fast Infoset. There are several FI implementations
> around. Combined with GZIP they should give you excellent results in
> terms of both compactness and performance.

Yes, in many cases.  There are several competing specs for
XML-specific binary encodings, which is why we (W3C) did EXI,
to try and have only one dominant format, so as to avoid
fragmentation.

> > But doesn't that require you to first know the schema of every thing
> you'll be sending and receiving?  That's not always possible.

Neither EXI nor Fast Infoset requires that.

EXI in particular does perform better if you do have a schema.

Note also that some of the "binary XML" formats are limited,
e.g. do not support mixed content, or comments, or processing
instructions.

On the other hand, EXI is new - it's not yet a final Recommendation,
we're still in the "call for implementations" phase.  Give it
six months or so and see what's happening.

Best,

Liam

-- 
Liam Quin - XML Activity Lead, W3C, http://www.w3.org/People/Quin/
Pictures from old books: http://fromoldbooks.org/
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