[
https://issues.apache.org/jira/browse/JENA-632?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15086179#comment-15086179
]
ASF GitHub Bot commented on JENA-632:
-------------------------------------
Github user afs commented on a diff in the pull request:
https://github.com/apache/jena/pull/114#discussion_r49002105
--- Diff: jena-arq/Grammar/master.jj ---
@@ -327,6 +359,35 @@ void AskQuery() : {}
SolutionModifier()
}
+void JsonQuery() : {}
+{
+ JsonClause()
+ ( DatasetClause() )*
+ WhereClause()
+ SolutionModifier()
+}
+
+void JsonClause() : { Object o ; String s ; }
+{
+ <JSON> { getQuery().setQueryJsonType() ; }
+ <LBRACE>
+ s = String() < PNAME_NS >
+ (
--- End diff --
Yes - javacc will tokenize to PNAME_NS. These is no COLON and if there
were, theer would be other problems.
I have a devious idea!
Use the PNAME_NS and follow with a java fragment that does additional
checking:
```
t = <PNAME_NS>
{
if ( t.image is not exactly a ":" )
throwParseException("message", t.beginLine, t.beginColumn)
}
```
This then restricts the legal token and means you won't to have to play
complicated games with javacc to switch to a different token set (if that is
even possible due to lookahead of characters).
> Generate JSON from SPARQL directly.
> -----------------------------------
>
> Key: JENA-632
> URL: https://issues.apache.org/jira/browse/JENA-632
> Project: Apache Jena
> Issue Type: Improvement
> Components: ARQ, Fuseki
> Reporter: Andy Seaborne
> Assignee: Bruno P. Kinoshita
> Priority: Minor
> Labels: java, javacc
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> The capability to generate JSON directly from a SPARQL (or extended SPARQL)
> query would enable the creation of JSON data API over published linked data.
> This project would cover:
> # Design and publication of a design.
> # Refinement of design based on community feed
> # Implementation, including testing.
> # Refinement of implementation based on community feed
> Skills required: Java, some parser work, design and discussion with the user
> community, basic understanding of HTTP and content negotiation.
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