--- /dev/null
+<?php
+
+/**
+ * EasyRdf
+ *
+ * LICENSE
+ *
+ * Copyright (c) 2012-2013 Nicholas J Humfrey.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author 'Nicholas J Humfrey" may be used to endorse or
+ * promote products derived from this software without specific prior
+ * written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @package EasyRdf
+ * @copyright Copyright (c) 2009-2013 Nicholas J Humfrey
+ * Copyright (c) 1997-2006 Aduna (http://www.aduna-software.com/)
+ * @license http://www.opensource.org/licenses/bsd-license.php
+ */
+
+/**
+ * Class to parse RDFa 1.1 with no external dependancies.
+ *
+ * http://www.w3.org/TR/rdfa-core/
+ *
+ * @package EasyRdf
+ * @copyright Copyright (c) 2012-2013 Nicholas J Humfrey
+ * @license http://www.opensource.org/licenses/bsd-license.php
+ */
+class EasyRdf_Parser_Rdfa extends EasyRdf_Parser
+{
+ const XML_NS = 'http://www.w3.org/XML/1998/namespace';
+ const RDF_XML_LITERAL = 'http://www.w3.org/1999/02/22-rdf-syntax-ns#XMLLiteral';
+ const TERM_REGEXP = '/^([a-zA-Z_])([0-9a-zA-Z_\.-]*)$/';
+
+ public $debug = false;
+
+ /**
+ * Constructor
+ *
+ * @return object EasyRdf_Parser_Rdfa
+ */
+ public function __construct()
+ {
+ }
+
+ protected function addTriple($resource, $property, $value)
+ {
+ if ($this->debug) {
+ print "Adding triple: $resource -> $property -> ".$value['type'].':'.$value['value']."\n";
+ }
+ $count = $this->graph->add($resource, $property, $value);
+ $this->tripleCount += $count;
+ return $count;
+ }
+
+ protected function generateList($subject, $property, $list)
+ {
+ $current = $subject;
+ $prop = $property;
+
+ // Output a blank node for each item in the list
+ foreach ($list as $item) {
+ $newNode = $this->graph->newBNodeId();
+ $this->addTriple($current, $prop, array('type' => 'bnode', 'value' => $newNode));
+ $this->addTriple($newNode, 'rdf:first', $item);
+
+ $current = $newNode;
+ $prop = 'rdf:rest';
+ }
+
+ // Finally, terminate the list
+ $this->addTriple(
+ $current,
+ $prop,
+ array('type' => 'uri', 'value' => EasyRdf_Namespace::expand('rdf:nil'))
+ );
+ }
+
+ protected function addToList($listMapping, $property, $value)
+ {
+ if ($this->debug) {
+ print "Adding to list: $property -> ".$value['type'].':'.$value['value']."\n";
+ }
+
+ // Create property in the list mapping if it doesn't already exist
+ if (!isset($listMapping->$property)) {
+ $listMapping->$property = array();
+ }
+ array_push($listMapping->$property, $value);
+ }
+
+ protected function printNode($node, $depth)
+ {
+ $indent = str_repeat(' ', $depth);
+ print $indent;
+ switch($node->nodeType) {
+ case XML_ELEMENT_NODE:
+ print 'node';
+ break;
+ case XML_ATTRIBUTE_NODE:
+ print 'attr';
+ break;
+ case XML_TEXT_NODE:
+ print 'text';
+ break;
+ case XML_CDATA_SECTION_NODE:
+ print 'cdata';
+ break;
+ case XML_ENTITY_REF_NODE:
+ print 'entref';
+ break;
+ case XML_ENTITY_NODE:
+ print 'entity';
+ break;
+ case XML_PI_NODE:
+ print 'pi';
+ break;
+ case XML_COMMENT_NODE:
+ print 'comment';
+ break;
+ case XML_DOCUMENT_NODE:
+ print 'doc';
+ break;
+ case XML_DOCUMENT_TYPE_NODE:
+ print 'doctype';
+ break;
+ case XML_HTML_DOCUMENT_NODE:
+ print 'html';
+ break;
+ default:
+ throw new EasyRdf_Exception("unknown node type: ".$node->nodeType);
+ break;
+ }
+ print ' '.$node->nodeName."\n";
+
+ if ($node->hasAttributes()) {
+ foreach ($node->attributes as $attr) {
+ print $indent.' '.$attr->nodeName." => ".$attr->nodeValue."\n";
+ }
+ }
+ }
+
+ protected function guessTimeDatatype($value)
+ {
+ if (preg_match('/^-?\d{4}-\d{2}-\d{2}(Z|[\-\+]\d{2}:\d{2})?$/', $value)) {
+ return 'http://www.w3.org/2001/XMLSchema#date';
+ } elseif (preg_match('/^\d{2}:\d{2}:\d{2}(Z|[\-\+]\d{2}:\d{2})?$/', $value)) {
+ return 'http://www.w3.org/2001/XMLSchema#time';
+ } elseif (preg_match('/^-?\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}(Z|[\-\+]\d{2}:\d{2})?$/', $value)) {
+ return 'http://www.w3.org/2001/XMLSchema#dateTime';
+ } elseif (preg_match('/^P(\d+Y)?(\d+M)?(\d+D)?T?(\d+H)?(\d+M)?(\d+S)?$/', $value)) {
+ return 'http://www.w3.org/2001/XMLSchema#duration';
+ } elseif (preg_match('/^\d{4}$/', $value)) {
+ return 'http://www.w3.org/2001/XMLSchema#gYear';
+ } elseif (preg_match('/^\d{4}-\d{2}$/', $value)) {
+ return 'http://www.w3.org/2001/XMLSchema#gYearMonth';
+ } else {
+ return null;
+ }
+ }
+
+ protected function initialContext()
+ {
+ $context = array(
+ 'prefixes' => array(),
+ 'vocab' => null,
+ 'subject' => $this->baseUri,
+ 'property' => null,
+ 'object' => null,
+ 'terms' => array(),
+ 'incompleteRels' => array(),
+ 'incompleteRevs' => array(),
+ 'listMapping' => null,
+ 'lang' => null,
+ 'path' => '',
+ 'xmlns' => array(),
+ );
+
+ // Set the default prefix
+ $context['prefixes'][''] = 'http://www.w3.org/1999/xhtml/vocab#';
+
+ // RDFa 1.1 default term mapping
+ $context['terms']['describedby'] = 'http://www.w3.org/2007/05/powder-s#describedby';
+ $context['terms']['license'] = 'http://www.w3.org/1999/xhtml/vocab#license';
+ $context['terms']['role'] = 'http://www.w3.org/1999/xhtml/vocab#role';
+
+ return $context;
+ }
+
+ protected function expandCurie($node, &$context, $value)
+ {
+ if (preg_match('/^(\w*?):(.*)$/', $value, $matches)) {
+ list (, $prefix, $local) = $matches;
+ $prefix = strtolower($prefix);
+ if ($prefix === '_') {
+ // It is a bnode
+ return $this->remapBnode(substr($value, 2));
+ } elseif (empty($prefix) and $context['vocab']) {
+ // Empty prefix
+ return $context['vocab'] . $local;
+ } elseif (isset($context['prefixes'][$prefix])) {
+ return $context['prefixes'][$prefix] . $local;
+ } elseif ($uri = $node->lookupNamespaceURI($prefix)) {
+ return $uri . $local;
+ } elseif (!empty($prefix) and $uri = EasyRdf_Namespace::get($prefix)) {
+ // Expand using well-known prefixes
+ return $uri . $local;
+ }
+ }
+ }
+
+ protected function processUri($node, &$context, $value, $isProp = false)
+ {
+ if (preg_match('/^\[(.*)\]$/', $value, $matches)) {
+ // Safe CURIE
+ return $this->expandCurie($node, $context, $matches[1]);
+ } elseif (preg_match(self::TERM_REGEXP, $value) and $isProp) {
+ $term = strtolower($value);
+ if ($context['vocab']) {
+ return $context['vocab'] . $value;
+ } elseif (isset($context['terms'][$term])) {
+ return $context['terms'][$term];
+ }
+ } elseif (substr($value, 0, 2) === '_:' and $isProp) {
+ return null;
+ } else {
+ $uri = $this->expandCurie($node, $context, $value);
+ if ($uri) {
+ return $uri;
+ } else {
+ $parsed = new EasyRdf_ParsedUri($value);
+ if ($parsed->isAbsolute()) {
+ return $value;
+ } elseif ($isProp) {
+ // Properties can't be relative URIs
+ return null;
+ } elseif ($this->baseUri) {
+ return $this->baseUri->resolve($parsed);
+ }
+ }
+ }
+ }
+
+ protected function processUriList($node, $context, $values)
+ {
+ if (!$values) {
+ return array();
+ }
+
+ $uris = array();
+ foreach (preg_split('/\s+/', $values) as $value) {
+ $uri = $this->processUri($node, $context, $value, true);
+ if ($uri) {
+ array_push($uris, $uri);
+ }
+ }
+ return $uris;
+ }
+
+ protected function getUriAttribute($node, &$context, $attributes)
+ {
+ if (!is_array($attributes)) {
+ $attributes = array($attributes);
+ }
+
+ // Find the first attribute that returns a valid URI
+ foreach ($attributes as $attribute) {
+ if ($node->hasAttribute($attribute)) {
+ $value = $node->getAttribute($attribute);
+ $uri = $this->processUri($node, $context, $value);
+ if ($uri) {
+ return $uri;
+ }
+ }
+ }
+ }
+
+ protected function processNode($node, &$context, $depth = 1)
+ {
+ if ($this->debug) {
+ $this->printNode($node, $depth);
+ }
+
+ // Step 1: establish local variables
+ $skip = false;
+ $subject = null;
+ $typedResource = null;
+ $object = null;
+ $rels = array();
+ $revs = array();
+ $lang = $context['lang'];
+ $incompleteRels = array();
+ $incompleteRevs = array();
+
+ if ($node->nodeType === XML_ELEMENT_NODE) {
+ $context['path'] .= '/' . $node->nodeName;
+
+ $content = $node->hasAttribute('content') ? $node->getAttribute('content') : null;
+ $datatype = $node->hasAttribute('datatype') ? $node->getAttribute('datatype') : null;
+ $property = $node->getAttribute('property') ? $node->getAttribute('property') : null;
+ $typeof = $node->getAttribute('typeof') ? $node->getAttribute('typeof') : null;
+
+ // Step 2: Default vocabulary
+ if ($node->hasAttribute('vocab')) {
+ $context['vocab'] = $node->getAttribute('vocab');
+ if ($context['vocab']) {
+ $this->addTriple(
+ $this->baseUri,
+ 'rdfa:usesVocabulary',
+ array('type' => 'uri', 'value' => $context['vocab'])
+ );
+ }
+ }
+
+ // Step 3: Set prefix mappings
+ // Support for deprecated xmlns if present in document
+ foreach ($context['xmlns'] as $prefix => $uri) {
+ if ($node->hasAttribute('xmlns:' . $prefix)) {
+ $context['prefixes'][$prefix] = $node->getAttribute('xmlns:' . $prefix);
+ if ($this->debug) {
+ print "Prefix (xmlns): $prefix => $uri\n";
+ }
+ }
+ }
+ if ($node->hasAttribute('prefix')) {
+ $mappings = preg_split('/\s+/', $node->getAttribute('prefix'));
+ while (count($mappings)) {
+ $prefix = strtolower(array_shift($mappings));
+ $uri = array_shift($mappings);
+
+ if (substr($prefix, -1) === ':') {
+ $prefix = substr($prefix, 0, -1);
+ } else {
+ continue;
+ }
+
+ if ($prefix === '_') {
+ continue;
+ } elseif (!empty($prefix)) {
+ $context['prefixes'][$prefix] = $uri;
+ if ($this->debug) {
+ print "Prefix: $prefix => $uri\n";
+ }
+ }
+ }
+ }
+
+ // Step 4
+ if ($node->hasAttributeNS(self::XML_NS, 'lang')) {
+ $lang = $node->getAttributeNS(self::XML_NS, 'lang');
+ } elseif ($node->hasAttribute('lang')) {
+ $lang = $node->getAttribute('lang');
+ }
+
+ // HTML+RDFa 1.1: ignore rel and rev unless they contain CURIEs.
+ foreach (array('rel', 'rev') as $attr) {
+ if ($node->hasAttribute('property') and $node->hasAttribute($attr)) {
+ // Quick check in case there are no CURIEs to deal with.
+ if (strpos($node->getAttribute($attr), ':') === false) {
+ $node->removeAttribute($attr);
+ } else {
+ // Only keep CURIEs.
+ $curies = array();
+ foreach (preg_split('/\s+/', $node->getAttribute($attr)) as $token) {
+ if (strpos($token, ':')) {
+ $curies[] = $token;
+ }
+ }
+ $node->setAttribute($attr, implode(' ', $curies));
+ }
+ }
+ }
+
+ $rels = $this->processUriList($node, $context, $node->getAttribute('rel'));
+ $revs = $this->processUriList($node, $context, $node->getAttribute('rev'));
+
+ if (!$node->hasAttribute('rel') and !$node->hasAttribute('rev')) {
+ // Step 5: Establish a new subject if no rel/rev
+ if ($property and is_null($content) and is_null($datatype)) {
+ $subject = $this->getUriAttribute($node, $context, 'about');
+ if ($typeof and !$subject) {
+ $typedResource = $this->getUriAttribute(
+ $node,
+ $context,
+ array('resource', 'href', 'src')
+ );
+ if (!$typedResource) {
+ $typedResource = $this->graph->newBNodeId();
+ }
+ $object = $typedResource;
+ }
+ } else {
+ $subject = $this->getUriAttribute(
+ $node,
+ $context,
+ array('about', 'resource', 'href', 'src')
+ );
+ }
+
+ // Establish a subject if there isn't one
+ # FIXME: refactor this
+ if (is_null($subject)) {
+ if ($context['path'] === '/html/head') {
+ $subject = $context['object'];
+ } elseif ($depth <= 2) {
+ $subject = $this->baseUri;
+ } elseif ($typeof and !$property) {
+ $subject = $this->graph->newBNodeId();
+ } else {
+ if (!$property) {
+ $skip = true;
+ }
+ $subject = $context['object'];
+ }
+ }
+
+ } else {
+ // Step 6
+ // If the current element does contain a @rel or @rev attribute, then the next step is to
+ // establish both a value for new subject and a value for current object resource:
+
+ $subject = $this->getUriAttribute($node, $context, 'about');
+
+ $object = $this->getUriAttribute(
+ $node,
+ $context,
+ array('resource', 'href', 'src')
+ );
+
+ if ($typeof) {
+ if (!$object and !$subject) {
+ $object = $this->graph->newBNodeId();
+ }
+ $typedResource = $subject ? $subject : $object;
+ }
+
+ # FIXME: if the element is the root element of the document
+ # then act as if there is an empty @about present
+ if (!$subject) {
+ $subject = $context['object'];
+ }
+
+ }
+
+ # FIXME: better place for this?
+ if ($typeof and $subject and !$typedResource) {
+ $typedResource = $subject;
+ }
+
+ // Step 7: Process @typeof if there is a subject
+ if ($typedResource) {
+ foreach ($this->processUriList($node, $context, $typeof) as $type) {
+ $this->addTriple(
+ $typedResource,
+ 'rdf:type',
+ array('type' => 'uri', 'value' => $type)
+ );
+ }
+ }
+
+ // Step 8: Create new List mapping if the subject has changed
+ if ($subject and $subject !== $context['subject']) {
+ $listMapping = new StdClass();
+ } else {
+ $listMapping = $context['listMapping'];
+ }
+
+ // Step 9: Generate triples with given object
+ if ($subject and $object) {
+ foreach ($rels as $prop) {
+ $obj = array('type' => 'uri', 'value' => $object);
+ if ($node->hasAttribute('inlist')) {
+ $this->addToList($listMapping, $prop, $obj);
+ } else {
+ $this->addTriple($subject, $prop, $obj);
+ }
+ }
+
+ foreach ($revs as $prop) {
+ $this->addTriple(
+ $object,
+ $prop,
+ array('type' => 'uri', 'value' => $subject)
+ );
+ }
+ } elseif ($rels or $revs) {
+ // Step 10: Incomplete triples and bnode creation
+ $object = $this->graph->newBNodeId();
+ if ($rels) {
+ if ($node->hasAttribute('inlist')) {
+ foreach ($rels as $prop) {
+ # FIXME: add support for incomplete lists
+ if (!isset($listMapping->$prop)) {
+ $listMapping->$prop = array();
+ }
+ }
+ } else {
+ $incompleteRels = $rels;
+ if ($this->debug) {
+ print "Incomplete rels: ".implode(',', $rels)."\n";
+ }
+ }
+ }
+
+ if ($revs) {
+ $incompleteRevs = $revs;
+ if ($this->debug) {
+ print "Incomplete revs: ".implode(',', $revs)."\n";
+ }
+ }
+ }
+
+ // Step 11: establish current property value
+ if ($subject and $property) {
+ $value = array();
+
+ if ($datatype) {
+ $datatype = $this->processUri($node, $context, $datatype, true);
+ }
+
+ if ($content !== null) {
+ $value['value'] = $content;
+ } elseif ($node->hasAttribute('datetime')) {
+ $value['value'] = $node->getAttribute('datetime');
+ $datetime = true;
+ } elseif ($datatype === '') {
+ $value['value'] = $node->textContent;
+ } elseif ($datatype === self::RDF_XML_LITERAL) {
+ $value['value'] = '';
+ foreach ($node->childNodes as $child) {
+ $value['value'] .= $child->C14N();
+ }
+ } elseif (is_null($datatype) and empty($rels) and empty($revs)) {
+ $value['value'] = $this->getUriAttribute(
+ $node,
+ $context,
+ array('resource', 'href', 'src')
+ );
+
+ if ($value['value']) {
+ $value['type'] = 'uri';
+ }
+ }
+
+ if (empty($value['value']) and $typedResource and !$node->hasAttribute('about')) {
+ $value['type'] = 'uri';
+ $value['value'] = $typedResource;
+ }
+
+ if (empty($value['value'])) {
+ $value['value'] = $node->textContent;
+ }
+
+ if (empty($value['type'])) {
+ $value['type'] = 'literal';
+ if ($datatype) {
+ $value['datatype'] = $datatype;
+ } elseif (isset($datetime) or $node->nodeName === 'time') {
+ $value['datatype'] = $this->guessTimeDatatype($value['value']);
+ }
+
+ if (empty($value['datatype']) and $lang) {
+ $value['lang'] = $lang;
+ }
+ }
+
+ // Add each of the properties
+ foreach ($this->processUriList($node, $context, $property) as $prop) {
+ if ($node->hasAttribute('inlist')) {
+ $this->addToList($listMapping, $prop, $value);
+ } elseif ($subject) {
+ $this->addTriple($subject, $prop, $value);
+ }
+ }
+ }
+
+ // Step 12: Complete the incomplete triples from the evaluation context
+ if (!$skip and $subject and ($context['incompleteRels'] or $context['incompleteRevs'])) {
+ foreach ($context['incompleteRels'] as $prop) {
+ $this->addTriple(
+ $context['subject'],
+ $prop,
+ array('type' => 'uri', 'value' => $subject)
+ );
+ }
+
+ foreach ($context['incompleteRevs'] as $prop) {
+ $this->addTriple(
+ $subject,
+ $prop,
+ array('type' => 'uri', 'value' => $context['subject'])
+ );
+ }
+ }
+ }
+
+ // Step 13: create a new evaluation context and proceed recursively
+ if ($node->hasChildNodes()) {
+ if ($skip) {
+ $newContext = $context;
+ } else {
+ // Prepare a new evaluation context
+ $newContext = $context;
+ if ($object) {
+ $newContext['object'] = $object;
+ } elseif ($subject) {
+ $newContext['object'] = $subject;
+ } else {
+ $newContext['object'] = $context['subject'];
+ }
+ if ($subject) {
+ $newContext['subject'] = $subject;
+ }
+ $newContext['incompleteRels'] = $incompleteRels;
+ $newContext['incompleteRevs'] = $incompleteRevs;
+ if (isset($listMapping)) {
+ $newContext['listMapping'] = $listMapping;
+ }
+ }
+
+ // The language is always updated, even if skip is set
+ $newContext['lang'] = $lang;
+
+ foreach ($node->childNodes as $child) {
+ if ($child->nodeType === XML_ELEMENT_NODE) {
+ $this->processNode($child, $newContext, $depth+1);
+ }
+ }
+ }
+
+ // Step 14: create triples for lists
+ if (!empty($listMapping)) {
+ foreach ($listMapping as $prop => $list) {
+ if ($context['listMapping'] !== $listMapping) {
+ if ($this->debug) {
+ print "Need to create triples for $prop => ".count($list)." items\n";
+ }
+ $this->generateList($subject, $prop, $list);
+ }
+ }
+ }
+ }
+
+ /**
+ * Parse RDFa 1.1 into an EasyRdf_Graph
+ *
+ * @param object EasyRdf_Graph $graph the graph to load the data into
+ * @param string $data the RDF document data
+ * @param string $format the format of the input data
+ * @param string $baseUri the base URI of the data being parsed
+ * @return integer The number of triples added to the graph
+ */
+ public function parse($graph, $data, $format, $baseUri)
+ {
+ parent::checkParseParams($graph, $data, $format, $baseUri);
+
+ if ($format != 'rdfa') {
+ throw new EasyRdf_Exception(
+ "EasyRdf_Parser_Rdfa does not support: $format"
+ );
+ }
+
+ // Initialise evaluation context.
+ $context = $this->initialContext();
+
+ libxml_use_internal_errors(true);
+
+ // Parse the document into DOM
+ $doc = new DOMDocument();
+ // Attempt to parse the document as strict XML, and fall back to HTML
+ // if XML parsing fails.
+ if ($doc->loadXML($data, LIBXML_NONET)) {
+ if ($this->debug) {
+ print "Document was parsed as XML.";
+ }
+ // Collect all xmlns namespaces defined throughout the document.
+ $sxe = simplexml_import_dom($doc);
+ $context['xmlns'] = $sxe->getDocNamespaces(true);
+ unset($context['xmlns']['']);
+ } else {
+ $doc->loadHTML($data);
+ if ($this->debug) {
+ print "Document was parsed as HTML.";
+ }
+ }
+
+ // Establish the base for both XHTML and HTML documents.
+ $xpath = new DOMXPath($doc);
+ $xpath->registerNamespace('xh', "http://www.w3.org/1999/xhtml");
+ $nodeList = $xpath->query('/xh:html/xh:head/xh:base');
+ if ($node = $nodeList->item(0) and $href = $node->getAttribute('href')) {
+ $this->baseUri = new EasyRdf_ParsedUri($href);
+ }
+ $nodeList = $xpath->query('/html/head/base');
+ if ($node = $nodeList->item(0) and $href = $node->getAttribute('href')) {
+ $this->baseUri = new EasyRdf_ParsedUri($href);
+ }
+
+ // Remove the fragment from the base URI
+ $this->baseUri->setFragment(null);
+
+ // Recursively process XML nodes
+ $this->processNode($doc, $context);
+
+ return $this->tripleCount;
+ }
+}
projects / yaffs-website / blobdiff