Re: Call for Review: GCC introspector owl ontology

[James Michael DuPont <mdupont777 at yahoo dot com>]

--- Diego Novillo <dnovillo@redhat.com> wrote:
> On Tue, 2003-08-19 at 03:09, James Michael DuPont wrote:
> 
> > http://introspector.sourceforge.net/2003/08/16/introspector.n3
> > http://introspector.sourceforge.net/2003/08/16/introspector.owl
> > 
> Does this need any kind of special browser support?  All I see in
> mozilla is source code of some kind.

Sorry that I did not explain.
Basically this is a high level class model for the GCC internal tree
structures as used by the c and (not complete C++) compiler.

The file are based on the OWL[1] vocabulary, which is an RDF[2]
application that allows the syntax to be described in RDF/XML[3], n3[4]
or ntriples[5] format.

""""The Web Ontology Language OWL is a semantic markup language for
publishing and sharing ontologies on the World Wide Web. OWL is
developed as a vocabulary extension of RDF (the Resource Description
Framework) and is derived from the DAML+OIL Web Ontology Language. """"

This file is describing the data extracted by the introspector [0] from
the gcc. The format of the file is closly related to the
-fdump-translation-units format, but more usable. I patched the gcc
using the Redland RDF Application framework [8] to serialize these tree
dump statements into RDF statements using the berkley db backend for
fast storage.

The DB is then available for querying using C/C++, JAVA, PERL, Python,
and many other interfaces via the Redland Swig interface. Even more you
can filter out interesting statements into RDF/XML format for
interchanging with other tools.

You can find an example file extracted from the source code of
internals of the pnet runtime engine here [9].

The ontology file is basically a powerful class model, you can use many
tools to edit and view them, (which i have not tried most of them)
TWO of them are the rdfviz tool and owl validator[10]


I used the Closed World Machine [6] from Tim Berners-Lee to process and
check this file, that tool along with the EulerSharp[7] that I am
working on will allow you to run queries, filters and proof over the
data extracted from the gcc.

Futher still, my intent is to embedded a small version of the Euler
machine into the gcc and dotgnu/pnet to allow proofs to be made at
compile time. 

mike

[0] Introspector - introspector.sf.net
[1] OWL - http://www.w3.org/TR/owl-ref/
[2] RDF - http://www.w3.org/RDF/
[3] RDF/XML  http://www.w3.org/TR/rdf-syntax-grammar/
[4] n3       http://www.w3.org/2000/10/swap/Primer
[5] ntriples http://www.w3.org/2001/sw/RDFCore/ntriples/
[6] CWM from timbl http://www.w3.org/2000/10/swap/doc/cwm.html
[7] Eulersharp http://eulersharp.sourceforge.net/2003/03swap/
[8] Redland     http://www.redland.opensource.ac.uk/
[9] Example n3 file  
http://demo.dotgnu.org/~mdupont/introspector/cwm.rdf.gz
[10] RDFVIZ  and validator 
http://www.ilrt.bristol.ac.uk/discovery/rdf-dev/rudolf/rdfviz/
http://owl.bbn.com/cgi-bin/vowlidator.pl


=====
James Michael DuPont
http://introspector.sourceforge.net/

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