RE: Match Pattern Proposal

And predicates can contain select patterns, so any
analysis of (predicates in) match patterns must 
include the same code that would analyze select
patterns in general.

So I fail to see how using match patterns instead
of select patterns simplifies the implementation.

Besides, if a given pipeline can be written using
just predicate-less match patterns, then when it
is written using select patterns, it will be just
as streamable.

So I still don't see how restricting to match patterns
will make pipelines any more streamable.

paul 

> -----Original Message-----
> From: public-xml-processing-model-wg-request@w3.org 
> [mailto:public-xml-processing-model-wg-request@w3.org] On 
> Behalf Of Alex Milowski
> Sent: Thursday, 2006 November 02 09:05
> To: public-xml-processing-model-wg
> Subject: Re: Match Pattern Proposal
> 
> 
> Grosso, Paul wrote:
> > I prefer select semantics all around.
> > 
> > Given (per Richard's comment) match semantics don't
> > help with the streaming issue, what (other than
> > personal preference) are the advantages of match
> > over select?
> 
> They do help in a big way.  There are predicates that
> can prevent streaming without caching or, in the worst
> case, having the whole document.
> 
> Match patterns limit this analysis to predicates.
> 
> --Alex Milowski
> 
>

Received on Thursday, 2 November 2006 15:23:41 UTC