[oslc-core] Core Specification Version 2.0 Query Syntax: oslc.select/oslc.properties BNF

[Arthur Ryman]

Steven,

I am not following your suggested change completely. However, the current 
grammar works with ANTLR [1] and that is a useful characteristic. Please 
test any changes with ANTLR.

[1] http://open-services.net/bin/view/Main/MetricsOslcQueryImplementation

Regards, 
___________________________________________________________________________ 

Arthur Ryman 

DE, Chief Architect, Reporting &
Portfolio Strategy and Management
IBM Software, Rational 

Toronto Lab | +1-905-413-3077 (office) | +1-416-939-5063 (mobile) 





From:
Steven B Pitschke <pitschke at us.ibm.com>
To:
oslc-core at open-services.net
Date:
06/29/2012 01:28 PM
Subject:
[oslc-core] Core Specification Version 2.0 Query Syntax: 
oslc.select/oslc.properties BNF
Sent by:
oslc-core-bounces at open-services.net



The core query specification 

        http://open-services.net/bin/view/Main/OSLCCoreSpecQuery 

gives a BNFfor select and properties of 

        oslc_select                :== "oslc.select=" properties 
        properties                :== property ( "," property )* 
        property                :== identifier | wildcard | nest_prop 
        nested_prop                := ( identifier | wildcard) "{" 
properties "}" 

which would allow the redundant "dcterms:name, *".  I would think the BNF 
would more properly be 

        oslc_select   ::= "oslc.select=" property_list 
        property_list ::= wildcard | properties 
        properties    ::= property ("," property)* 
        property      ::= identifier | nested_prop 
        nested_prop   ::= (identifier | wildcard) "{" property_list "}" 

or 

        oslc_select   ::= "oslc.select=" property_list 
        property_list ::= wildcard | properties 
        properties    ::= property ("," property)* 
        property      ::= identifier | nested_prop 
        nested_prop   ::= identifier "{" property_list "}" 

the difference between the two being whether or not 
"*{dcterms:comment,cm:comment}" 
makes sense. 

Regards, 

Steve Pitschke
Senior Software Engineer and Architect 
Rational Software, IBM_______________________________________________
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