Re: comment on A.7 "Grammar"

Steve Harris wrote:
> 
> 
> On 10 Jun 2006, at 20:35, Seaborne, Andy wrote:
>>> Strictly speaking, commas may be unnecessary since SELECT ?a ?b + ?c
>>> can be parsed.
>>
>> Unbracketed expressions would need commas to know when they end and a 
>> new one start.  Given we are in CR, mandatory commas would be a 
>> significant change.
> 
> Is that a huge setback? 

For application writers, it would break every SELECT/DESCRIBE query with two 
or more variables projected.

For implementers, it would break every implementation

   http://esw.w3.org/topic/SparqlImplementations

 > I'm not sure of the process implications.

I'll leave it to the chair to discuss the process implications :-)

	Andy

> 
> Given that the commas-in-triple-patterns consistency problem is gone is 
> seems a bit unfortunate to stick with a decision that results from that.
> 
>> I hope I've shown that expressions in SELECT are possible.
> 
> You have, but not that it's particularly pleasant syntax.
> 
> - Steve
>