[redland-dev] [Redland librdf RDF API 0000519]: SPARQL query-related methods crash on certain literals

[Mantis Bug Tracker]

The following issue has been SUBMITTED. 
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http://bugs.librdf.org/mantis/view.php?id=519 
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Reported By:                Cordawyn
Assigned To:                
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Project:                    Redland librdf RDF API
Issue ID:                   519
Category:                   query engine
Reproducibility:            always
Severity:                   crash
Priority:                   normal
Status:                     new
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Date Submitted:             2012-07-31 09:47
Last Modified:              2012-07-31 09:47
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Summary:                    SPARQL query-related methods crash on certain
literals
Description: 
SPARQL queries containing integer literals in form:
  "4"^^<http://www.w3.org/2001/XMLSchema#int>
  (note to quotes)
cause a crash when calling "librdf_query_results_finished".

When written as:
  4^^<http://www.w3.org/2001/XMLSchema#int>
  (without quotes)
"librdf_new_query" issues a warning:
  librdf error �k7� - syntax error, unexpected HATHAT, expecting '}'

But everything works fine for "4"^^<http://www.w3.org/2001/XMLSchema#integer> or
4^^<http://www.w3.org/2001/XMLSchema#integer> .

I guess there are 2 problems here:
  1) "int" vs "integer"
  2) quotes are not handled as optional (although they should be, if I
understand SPARQL specs correctly - see "4.1.2 Syntax for Literals").

Steps to Reproduce: 
Try the following SPARQL query via "librdf_model_query_execute":

  SELECT ?s WHERE { ?s ?p "4"^^<http://www.w3.org/2001/XMLSchema#int> }

then call "librdf_query_results_finished".
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Issue History 
Date Modified    Username       Field                    Change               
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2012-07-31 09:47 Cordawyn       New Issue                                    
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