Download XSPARQLer

XSPARQLer is a prototype implementation of the XSPARQL language. This rewriter translates an XSPARQL query into an Xquery as described in the XSPARQL Language Specification.

Downloading XSPARQLer

You can download XSPARQLer in two different ways:

1) Package

The packaged XSPARQLer is available for download on the Sourceforge project page

You should download the package that uses the same Python version on
which you are going to install.

2) SVN

You can get the current svn version of XSPARQLer by running the
following command:
$ svn co https://xsparql.svn.sourceforge.net/svnroot/xsparql xsparql

Installing XSPARQLer

Installing XSPARQLer requires the following software:

Python

You need Python >= 2.4 and python-setuptools. You can get Python from
the web page: http://www.python.org/ or there are packaged versions of
Python distributed with your UNIX based operating system.

Python Lex-Yacc

You can get Python Lex-Yacc from: http://www.dabeaz.com/ply/. If you
are installing from the packaged file you can safely skip this step
since it will install Python Lex-Yacc when you install the package.

Invoke the following command to install XSPARQLer:

$ python setup.py install

See also http://docs.python.org/inst/.

If you downloaded the packaged version of XSPARQLer you can install it
by running:

$ easy_install package_file

For further details you can see: http://peak.telecommunity.com/DevCenter/EasyInstall.

Running XSPARQLer

To run XSPARQL you need:

XQuery engine

You can get XQilla (http://xqilla.sourceforge.net/) or Saxon (http://saxon.sourceforge.net/).
XSPARQL is mostly tested using XQilla and is thus recommended you install XQilla.

SPARQL Endpoint

You can get Joseki from http://www.joseki.org/.

xsparqler.py is a rewriter for XSPARQL to XQuery. You can
transform an XSPARQL file to an XQuery file using the following
command:

$ xsparqler.py [--endpoint URI] example.xsparql > out.xquery

The --endpoint changes the default URI for the SPARQL endpoint, which is considered to be localhost.

Run 'out.xquery' using the installed XQuery engine.