/usr/share/php/arc/parsers/ARC2_RDFParser.php is in libarc-php 2~20101006-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/**
* ARC2 RDF Parser (generic)
*
* @author Benjamin Nowack <bnowack@semsol.com>
* @license http://arc.semsol.org/license
* @homepage <http://arc.semsol.org/>
* @package ARC2
* @version 2010-11-16
*/
ARC2::inc('Class');
class ARC2_RDFParser extends ARC2_Class {
function __construct($a, &$caller) {
parent::__construct($a, $caller);
}
function __init() {/* proxy_host, proxy_port, proxy_skip, http_accept_header, http_user_agent_header, max_redirects, reader, skip_dupes */
parent::__init();
$this->a['format'] = $this->v('format', false, $this->a);
$this->keep_time_limit = $this->v('keep_time_limit', 0, $this->a);
$this->triples = array();
$this->t_count = 0;
$this->added_triples = array();
$this->skip_dupes = $this->v('skip_dupes', false, $this->a);
$this->bnode_prefix = $this->v('bnode_prefix', 'arc'.substr(md5(uniqid(rand())), 0, 4).'b', $this->a);
$this->bnode_id = 0;
$this->format = '';
}
/* */
function setReader(&$reader) {
$this->reader = $reader;
}
function parse($path, $data = '') {
/* reader */
if (!isset($this->reader)) {
ARC2::inc('Reader');
$this->reader = new ARC2_Reader($this->a, $this);
}
$this->reader->activate($path, $data) ;
/* format detection */
$mappings = array(
'rdfxml' => 'RDFXML',
'turtle' => 'Turtle',
'sparqlxml' => 'SPOG',
'ntriples' => 'Turtle',
'html' => 'SemHTML',
'rss' => 'RSS',
'atom' => 'Atom',
'sgajson' => 'SGAJSON',
'cbjson' => 'CBJSON'
);
$format = $this->reader->getFormat();
if (!$format || !isset($mappings[$format])) {
return $this->addError('No parser available for "' . $format . '".');
}
$this->format = $format;
/* format parser */
$suffix = $mappings[$format] . 'Parser';
ARC2::inc($suffix);
$cls = 'ARC2_' . $suffix;
$this->parser = new $cls($this->a, $this);
$this->parser->setReader($this->reader);
return $this->parser->parse($path, $data);
}
function parseData($data) {
return $this->parse(ARC2::getScriptURI(), $data);
}
/* */
function done() {
}
/* */
function createBnodeID(){
$this->bnode_id++;
return '_:' . $this->bnode_prefix . $this->bnode_id;
}
function getTriples() {
return $this->v('parser') ? $this->m('getTriples', false, array(), $this->v('parser')) : array();
}
function countTriples() {
return $this->v('parser') ? $this->m('countTriples', false, 0, $this->v('parser')) : 0;
}
function getSimpleIndex($flatten_objects = 1, $vals = '') {
return ARC2::getSimpleIndex($this->getTriples(), $flatten_objects, $vals);
}
function reset() {
$this->__init();
if (isset($this->reader)) unset($this->reader);
if (isset($this->parser)) {
$this->parser->__init();
unset($this->parser);
}
}
/* */
function extractRDF($formats = '') {
if (method_exists($this->parser, 'extractRDF')) {
return $this->parser->extractRDF($formats);
}
}
/* */
function getEncoding($src = 'config') {
if (method_exists($this->parser, 'getEncoding')) {
return $this->parser->getEncoding($src);
}
}
/**
* returns the array of namespace prefixes encountered during parsing
* @return array (keys = namespace URI / values = prefix used)
*/
function getParsedNamespacePrefixes() {
if (isset($this->parser)) {
return $this->v('nsp', array(), $this->parser);
}
return $this->v('nsp', array());
}
/* */
}
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