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<?php |
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/** |
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* ARC2 SPARQL-enhanced Turtle Parser |
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* |
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* @author Benjamin Nowack |
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* @license <http://arc.semsol.org/license> |
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* @homepage <http://arc.semsol.org/> |
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* @package ARC2 |
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* @version 2010-04-11 |
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*/ |
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ARC2::inc('RDFParser'); |
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class ARC2_TurtleParser extends ARC2_RDFParser { |
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function __construct($a = '', &$caller) { |
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parent::__construct($a, $caller); |
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} |
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function ARC2_TurtleParser($a = '', &$caller) { |
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$this->__construct($a, $caller); |
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} |
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function __init() {/* reader */ |
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parent::__init(); |
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$this->state = 0; |
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$this->xml = 'http://www.w3.org/XML/1998/namespace'; |
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$this->rdf = 'http://www.w3.org/1999/02/22-rdf-syntax-ns#'; |
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$this->xsd = 'http://www.w3.org/2001/XMLSchema#'; |
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$this->nsp = array($this->xml => 'xml', $this->rdf => 'rdf', $this->xsd => 'xsd'); |
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$this->unparsed_code = ''; |
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$this->max_parsing_loops = $this->v('turtle_max_parsing_loops', 500, $this->a); |
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} |
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/* */ |
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function x($re, $v, $options = 'si') { |
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$v = preg_replace('/^[\xA0\xC2]+/', ' ', $v); |
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while (preg_match('/^\s*(\#[^\xd\xa]*)(.*)$/si', $v, $m)) {/* comment removal */ |
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$v = $m[2]; |
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} |
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return ARC2::x($re, $v, $options); |
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//$this->unparsed_code = ($sub_r && count($sub_r)) ? $sub_r[count($sub_r) - 1] : ''; |
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} |
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function createBnodeID(){ |
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$this->bnode_id++; |
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return '_:' . $this->bnode_prefix . $this->bnode_id; |
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} |
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/* */ |
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function addT($t) { |
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if ($this->skip_dupes) { |
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$h = md5(serialize($t)); |
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if (!isset($this->added_triples[$h])) { |
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$this->triples[$this->t_count] = $t; |
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$this->t_count++; |
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$this->added_triples[$h] = true; |
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} |
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} |
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else { |
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$this->triples[$this->t_count] = $t; |
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$this->t_count++; |
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} |
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} |
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/* */ |
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function getTriples() { |
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return $this->v('triples', array()); |
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} |
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function countTriples() { |
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return $this->t_count; |
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} |
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/* */ |
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function getUnparsedCode() { |
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return $this->v('unparsed_code', ''); |
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} |
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/* */ |
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function setDefaultPrefixes() { |
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$this->prefixes = array( |
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'rdf:' => 'http://www.w3.org/1999/02/22-rdf-syntax-ns#', |
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'rdfs:' => 'http://www.w3.org/2000/01/rdf-schema#', |
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'owl:' => 'http://www.w3.org/2002/07/owl#', |
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'xsd:' => 'http://www.w3.org/2001/XMLSchema#', |
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); |
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if ($ns = $this->v('ns', array(), $this->a)) { |
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foreach ($ns as $p => $u) $this->prefixes[$p . ':'] = $u; |
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} |
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} |
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function parse($path, $data = '', $iso_fallback = false) { |
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$this->setDefaultPrefixes(); |
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/* reader */ |
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if (!$this->v('reader')) { |
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ARC2::inc('Reader'); |
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$this->reader = & new ARC2_Reader($this->a, $this); |
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} |
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$this->reader->setAcceptHeader('Accept: application/x-turtle; q=0.9, */*; q=0.1'); |
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$this->reader->activate($path, $data); |
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$this->base = $this->v1('base', $this->reader->base, $this->a); |
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$this->r = array('vars' => array()); |
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/* parse */ |
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$buffer = ''; |
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$more_triples = array(); |
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$sub_v = ''; |
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$sub_v2 = ''; |
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$loops = 0; |
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$prologue_done = 0; |
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while ($d = $this->reader->readStream(0)) { |
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$buffer .= $d; |
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$sub_v = $buffer; |
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do { |
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$proceed = 0; |
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if (!$prologue_done) { |
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$proceed = 1; |
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if ((list($sub_r, $sub_v) = $this->xPrologue($sub_v)) && $sub_r) { |
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$loops = 0; |
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$sub_v .= $this->reader->readStream(0, 128); |
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/* we might have missed the final DOT in the previous prologue loop */ |
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if ($sub_r = $this->x('\.', $sub_v)) $sub_v = $sub_r[1]; |
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if ($this->x("\@?(base|prefix)", $sub_v)) {/* more prologue to come, use outer loop */ |
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$proceed = 0; |
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} |
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} |
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else { |
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$prologue_done = 1; |
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} |
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} |
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if ($prologue_done && (list($sub_r, $sub_v, $more_triples, $sub_v2) = $this->xTriplesBlock($sub_v)) && is_array($sub_r)) { |
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$proceed = 1; |
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$loops = 0; |
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foreach ($sub_r as $t) { |
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$this->addT($t); |
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} |
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} |
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} while ($proceed); |
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$loops++; |
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$buffer = $sub_v; |
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if ($loops > $this->max_parsing_loops) {/* most probably a parser or code bug, might also be a huge object value, though */ |
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$this->addError('too many loops: ' . $loops . '. Could not parse "' . substr($buffer, 0, 200) . '..."'); |
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break; |
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} |
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} |
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foreach ($more_triples as $t) { |
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$this->addT($t); |
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} |
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$sub_v = count($more_triples) ? $sub_v2 : $sub_v; |
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$buffer = $sub_v; |
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$this->unparsed_code = $buffer; |
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$this->reader->closeStream(); |
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unset($this->reader); |
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/* remove trailing comments */ |
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while (preg_match('/^\s*(\#[^\xd\xa]*)(.*)$/si', $this->unparsed_code, $m)) $this->unparsed_code = $m[2]; |
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if ($this->unparsed_code && !$this->getErrors()) { |
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$rest = preg_replace('/[\x0a|\x0d]/i', ' ', substr($this->unparsed_code, 0, 30)); |
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if (trim($rest)) $this->addError('Could not parse "' . $rest . '"'); |
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} |
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return $this->done(); |
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} |
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function xPrologue($v) { |
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$r = 0; |
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if (!$this->t_count) { |
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if ((list($sub_r, $v) = $this->xBaseDecl($v)) && $sub_r) { |
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$this->base = $sub_r; |
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$r = 1; |
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} |
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while ((list($sub_r, $v) = $this->xPrefixDecl($v)) && $sub_r) { |
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$this->prefixes[$sub_r['prefix']] = $sub_r['uri']; |
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$r = 1; |
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} |
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} |
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return array($r, $v); |
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} |
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/* 3 */ |
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function xBaseDecl($v) { |
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if ($r = $this->x("\@?base\s+", $v)) { |
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if ((list($r, $sub_v) = $this->xIRI_REF($r[1])) && $r) { |
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if ($sub_r = $this->x('\.', $sub_v)) { |
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$sub_v = $sub_r[1]; |
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} |
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return array($r, $sub_v); |
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} |
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} |
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return array(0, $v); |
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} |
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/* 4 */ |
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function xPrefixDecl($v) { |
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if ($r = $this->x("\@?prefix\s+", $v)) { |
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if ((list($r, $sub_v) = $this->xPNAME_NS($r[1])) && $r) { |
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$prefix = $r; |
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if((list($r, $sub_v) = $this->xIRI_REF($sub_v)) && $r) { |
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$uri = $this->calcURI($r, $this->base); |
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if ($sub_r = $this->x('\.', $sub_v)) { |
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$sub_v = $sub_r[1]; |
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} |
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return array(array('prefix' => $prefix, 'uri_ref' => $r, 'uri' => $uri), $sub_v); |
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} |
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} |
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} |
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return array(0, $v); |
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} |
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216
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/* 21.., 32.. */ |
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218
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function xTriplesBlock($v) { |
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$pre_r = array(); |
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$r = array(); |
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$state = 1; |
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$sub_v = $v; |
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$buffer = $sub_v; |
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do { |
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$proceed = 0; |
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if ($state == 1) {/* expecting subject */ |
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$t = array('type' => 'triple', 's' => '', 'p' => '', 'o' => '', 's_type' => '', 'p_type' => '', 'o_type' => '', 'o_datatype' => '', 'o_lang' => ''); |
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if ((list($sub_r, $sub_v) = $this->xVarOrTerm($sub_v)) && $sub_r) { |
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$t['s'] = $sub_r['value']; |
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$t['s_type'] = $sub_r['type']; |
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$state = 2; |
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$proceed = 1; |
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if ($sub_r = $this->x('(\}|\.)', $sub_v)) { |
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if ($t['s_type'] == 'placeholder') { |
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$state = 4; |
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} |
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else { |
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$this->addError('"' . $sub_r[1]. '" after subject found.'); |
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} |
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240
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} |
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241
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} |
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242
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elseif ((list($sub_r, $sub_v) = $this->xCollection($sub_v)) && $sub_r) { |
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$t['s'] = $sub_r['id']; |
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244
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$t['s_type'] = $sub_r['type']; |
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$pre_r = array_merge($pre_r, $sub_r['triples']); |
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$state = 2; |
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247
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$proceed = 1; |
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248
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if ($sub_r = $this->x('\.', $sub_v)) { |
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249
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$this->addError('DOT after subject found.'); |
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250
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} |
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251
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} |
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252
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elseif ((list($sub_r, $sub_v) = $this->xBlankNodePropertyList($sub_v)) && $sub_r) { |
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253
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$t['s'] = $sub_r['id']; |
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254
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$t['s_type'] = $sub_r['type']; |
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255
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$pre_r = array_merge($pre_r, $sub_r['triples']); |
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256
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$state = 2; |
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257
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$proceed = 1; |
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258
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} |
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259
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elseif ($sub_r = $this->x('\.', $sub_v)) { |
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$this->addError('Subject expected, DOT found.' . $sub_v); |
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261
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} |
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262
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} |
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263
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if ($state == 2) {/* expecting predicate */ |
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264
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if ($sub_r = $this->x('a\s+', $sub_v)) { |
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265
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$sub_v = $sub_r[1]; |
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266
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$t['p'] = $this->rdf . 'type'; |
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267
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$t['p_type'] = 'uri'; |
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268
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$state = 3; |
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269
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$proceed = 1; |
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270
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} |
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271
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elseif ((list($sub_r, $sub_v) = $this->xVarOrTerm($sub_v)) && $sub_r) { |
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272
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if ($sub_r['type'] == 'bnode') { |
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273
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$this->addError('Blank node used as triple predicate'); |
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274
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} |
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275
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$t['p'] = $sub_r['value']; |
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276
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$t['p_type'] = $sub_r['type']; |
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277
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$state = 3; |
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$proceed = 1; |
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279
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} |
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280
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elseif ($sub_r = $this->x('\.', $sub_v)) { |
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281
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$state = 4; |
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282
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} |
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283
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elseif ($sub_r = $this->x('\}', $sub_v)) { |
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284
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$buffer = $sub_v; |
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285
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$r = array_merge($r, $pre_r); |
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286
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$pre_r = array(); |
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287
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$proceed = 0; |
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288
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} |
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289
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} |
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290
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if ($state == 3) {/* expecting object */ |
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291
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if ((list($sub_r, $sub_v) = $this->xVarOrTerm($sub_v)) && $sub_r) { |
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292
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$t['o'] = $sub_r['value']; |
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293
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|
|
$t['o_type'] = $sub_r['type']; |
|
294
|
|
|
$t['o_lang'] = $this->v('lang', '', $sub_r); |
|
295
|
|
|
$t['o_datatype'] = $this->v('datatype', '', $sub_r); |
|
296
|
|
|
$pre_r[] = $t; |
|
297
|
|
|
$state = 4; |
|
298
|
|
|
$proceed = 1; |
|
299
|
|
|
} |
|
300
|
|
|
elseif ((list($sub_r, $sub_v) = $this->xCollection($sub_v)) && $sub_r) { |
|
301
|
|
|
$t['o'] = $sub_r['id']; |
|
302
|
|
|
$t['o_type'] = $sub_r['type']; |
|
303
|
|
|
$pre_r = array_merge($pre_r, array($t), $sub_r['triples']); |
|
304
|
|
|
$state = 4; |
|
305
|
|
|
$proceed = 1; |
|
306
|
|
|
} |
|
307
|
|
|
elseif ((list($sub_r, $sub_v) = $this->xBlankNodePropertyList($sub_v)) && $sub_r) { |
|
308
|
|
|
$t['o'] = $sub_r['id']; |
|
309
|
|
|
$t['o_type'] = $sub_r['type']; |
|
310
|
|
|
$pre_r = array_merge($pre_r, array($t), $sub_r['triples']); |
|
311
|
|
|
$state = 4; |
|
312
|
|
|
$proceed = 1; |
|
313
|
|
|
} |
|
314
|
|
|
} |
|
315
|
|
|
if ($state == 4) {/* expecting . or ; or , or } */ |
|
316
|
|
|
if ($sub_r = $this->x('\.', $sub_v)) { |
|
317
|
|
|
$sub_v = $sub_r[1]; |
|
318
|
|
|
$buffer = $sub_v; |
|
319
|
|
|
$r = array_merge($r, $pre_r); |
|
320
|
|
|
$pre_r = array(); |
|
321
|
|
|
$state = 1; |
|
322
|
|
|
$proceed = 1; |
|
323
|
|
|
} |
|
324
|
|
|
elseif ($sub_r = $this->x('\;', $sub_v)) { |
|
325
|
|
|
$sub_v = $sub_r[1]; |
|
326
|
|
|
$state = 2; |
|
327
|
|
|
$proceed = 1; |
|
328
|
|
|
} |
|
329
|
|
|
elseif ($sub_r = $this->x('\,', $sub_v)) { |
|
330
|
|
|
$sub_v = $sub_r[1]; |
|
331
|
|
|
$state = 3; |
|
332
|
|
|
$proceed = 1; |
|
333
|
|
|
if ($sub_r = $this->x('\}', $sub_v)) { |
|
334
|
|
|
$this->addError('Object expected, } found.'); |
|
335
|
|
|
} |
|
336
|
|
|
} |
|
337
|
|
|
if ($sub_r = $this->x('(\}|\{|OPTIONAL|FILTER|GRAPH)', $sub_v)) { |
|
338
|
|
|
$buffer = $sub_v; |
|
339
|
|
|
$r = array_merge($r, $pre_r); |
|
340
|
|
|
$pre_r = array(); |
|
341
|
|
|
$proceed = 0; |
|
342
|
|
|
} |
|
343
|
|
|
} |
|
344
|
|
|
} while ($proceed); |
|
345
|
|
|
return count($r) ? array($r, $buffer, $pre_r, $sub_v) : array(0, $buffer, $pre_r, $sub_v); |
|
346
|
|
|
} |
|
347
|
|
|
|
|
348
|
|
|
/* 39.. */ |
|
349
|
|
|
|
|
350
|
|
|
function xBlankNodePropertyList($v) { |
|
351
|
|
|
if ($sub_r = $this->x('\[', $v)) { |
|
352
|
|
|
$sub_v = $sub_r[1]; |
|
353
|
|
|
$s = $this->createBnodeID(); |
|
354
|
|
|
$r = array('id' => $s, 'type' => 'bnode', 'triples' => array()); |
|
355
|
|
|
$t = array('type' => 'triple', 's' => $s, 'p' => '', 'o' => '', 's_type' => 'bnode', 'p_type' => '', 'o_type' => '', 'o_datatype' => '', 'o_lang' => ''); |
|
356
|
|
|
$state = 2; |
|
357
|
|
|
$closed = 0; |
|
358
|
|
|
do { |
|
359
|
|
|
$proceed = 0; |
|
360
|
|
|
if ($state == 2) {/* expecting predicate */ |
|
361
|
|
|
if ($sub_r = $this->x('a\s+', $sub_v)) { |
|
362
|
|
|
$sub_v = $sub_r[1]; |
|
363
|
|
|
$t['p'] = $this->rdf . 'type'; |
|
364
|
|
|
$t['p_type'] = 'uri'; |
|
365
|
|
|
$state = 3; |
|
366
|
|
|
$proceed = 1; |
|
367
|
|
|
} |
|
368
|
|
|
elseif ((list($sub_r, $sub_v) = $this->xVarOrTerm($sub_v)) && $sub_r) { |
|
369
|
|
|
$t['p'] = $sub_r['value']; |
|
370
|
|
|
$t['p_type'] = $sub_r['type']; |
|
371
|
|
|
$state = 3; |
|
372
|
|
|
$proceed = 1; |
|
373
|
|
|
} |
|
374
|
|
|
} |
|
375
|
|
|
if ($state == 3) {/* expecting object */ |
|
376
|
|
|
if ((list($sub_r, $sub_v) = $this->xVarOrTerm($sub_v)) && $sub_r) { |
|
377
|
|
|
$t['o'] = $sub_r['value']; |
|
378
|
|
|
$t['o_type'] = $sub_r['type']; |
|
379
|
|
|
$t['o_lang'] = $this->v('lang', '', $sub_r); |
|
380
|
|
|
$t['o_datatype'] = $this->v('datatype', '', $sub_r); |
|
381
|
|
|
$r['triples'][] = $t; |
|
382
|
|
|
$state = 4; |
|
383
|
|
|
$proceed = 1; |
|
384
|
|
|
} |
|
385
|
|
|
elseif ((list($sub_r, $sub_v) = $this->xCollection($sub_v)) && $sub_r) { |
|
386
|
|
|
$t['o'] = $sub_r['id']; |
|
387
|
|
|
$t['o_type'] = $sub_r['type']; |
|
388
|
|
|
$r['triples'] = array_merge($r['triples'], array($t), $sub_r['triples']); |
|
389
|
|
|
$state = 4; |
|
390
|
|
|
$proceed = 1; |
|
391
|
|
|
} |
|
392
|
|
|
elseif((list($sub_r, $sub_v) = $this->xBlankNodePropertyList($sub_v)) && $sub_r) { |
|
393
|
|
|
$t['o'] = $sub_r['id']; |
|
394
|
|
|
$t['o_type'] = $sub_r['type']; |
|
395
|
|
|
$r['triples'] = array_merge($r['triples'], array($t), $sub_r['triples']); |
|
396
|
|
|
$state = 4; |
|
397
|
|
|
$proceed = 1; |
|
398
|
|
|
} |
|
399
|
|
|
} |
|
400
|
|
|
if ($state == 4) {/* expecting . or ; or , or ] */ |
|
401
|
|
|
if ($sub_r = $this->x('\.', $sub_v)) { |
|
402
|
|
|
$sub_v = $sub_r[1]; |
|
403
|
|
|
$state = 1; |
|
404
|
|
|
$proceed = 1; |
|
405
|
|
|
} |
|
406
|
|
|
if ($sub_r = $this->x('\;', $sub_v)) { |
|
407
|
|
|
$sub_v = $sub_r[1]; |
|
408
|
|
|
$state = 2; |
|
409
|
|
|
$proceed = 1; |
|
410
|
|
|
} |
|
411
|
|
|
if ($sub_r = $this->x('\,', $sub_v)) { |
|
412
|
|
|
$sub_v = $sub_r[1]; |
|
413
|
|
|
$state = 3; |
|
414
|
|
|
$proceed = 1; |
|
415
|
|
|
} |
|
416
|
|
|
if ($sub_r = $this->x('\]', $sub_v)) { |
|
417
|
|
|
$sub_v = $sub_r[1]; |
|
418
|
|
|
$proceed = 0; |
|
419
|
|
|
$closed = 1; |
|
420
|
|
|
} |
|
421
|
|
|
} |
|
422
|
|
|
} while ($proceed); |
|
423
|
|
|
if ($closed) { |
|
424
|
|
|
return array($r, $sub_v); |
|
425
|
|
|
} |
|
426
|
|
|
return array(0, $v); |
|
427
|
|
|
} |
|
428
|
|
|
return array(0, $v); |
|
429
|
|
|
} |
|
430
|
|
|
|
|
431
|
|
|
/* 40.. */ |
|
432
|
|
|
|
|
433
|
|
|
function xCollection($v) { |
|
434
|
|
|
if ($sub_r = $this->x('\(', $v)) { |
|
435
|
|
|
$sub_v = $sub_r[1]; |
|
436
|
|
|
$s = $this->createBnodeID(); |
|
437
|
|
|
$r = array('id' => $s, 'type' => 'bnode', 'triples' => array()); |
|
438
|
|
|
$closed = 0; |
|
439
|
|
|
do { |
|
440
|
|
|
$proceed = 0; |
|
441
|
|
|
if ((list($sub_r, $sub_v) = $this->xVarOrTerm($sub_v)) && $sub_r) { |
|
442
|
|
|
$r['triples'][] = array('type' => 'triple', 's' => $s, 'p' => $this->rdf . 'first', 'o' => $sub_r['value'], 's_type' => 'bnode', 'p_type' => 'uri', 'o_type' => $sub_r['type'], 'o_lang' => $this->v('lang', '', $sub_r), 'o_datatype' => $this->v('datatype', '', $sub_r)); |
|
443
|
|
|
$proceed = 1; |
|
444
|
|
|
} |
|
445
|
|
|
elseif ((list($sub_r, $sub_v) = $this->xCollection($sub_v)) && $sub_r) { |
|
446
|
|
|
$r['triples'][] = array('type' => 'triple', 's' => $s, 'p' => $this->rdf . 'first', 'o' => $sub_r['id'], 's_type' => 'bnode', 'p_type' => 'uri', 'o_type' => $sub_r['type'], 'o_lang' => '', 'o_datatype' => ''); |
|
447
|
|
|
$r['triples'] = array_merge($r['triples'], $sub_r['triples']); |
|
448
|
|
|
$proceed = 1; |
|
449
|
|
|
} |
|
450
|
|
|
elseif((list($sub_r, $sub_v) = $this->xBlankNodePropertyList($sub_v)) && $sub_r) { |
|
451
|
|
|
$r['triples'][] = array('type' => 'triple', 's' => $s, 'p' => $this->rdf . 'first', 'o' => $sub_r['id'], 's_type' => 'bnode', 'p_type' => 'uri', 'o_type' => $sub_r['type'], 'o_lang' => '', 'o_datatype' => ''); |
|
452
|
|
|
$r['triples'] = array_merge($r['triples'], $sub_r['triples']); |
|
453
|
|
|
$proceed = 1; |
|
454
|
|
|
} |
|
455
|
|
|
if ($proceed) { |
|
456
|
|
|
if ($sub_r = $this->x('\)', $sub_v)) { |
|
457
|
|
|
$sub_v = $sub_r[1]; |
|
458
|
|
|
$r['triples'][] = array('type' => 'triple', 's' => $s, 'p' => $this->rdf . 'rest', 'o' => $this->rdf . 'nil', 's_type' => 'bnode', 'p_type' => 'uri', 'o_type' => 'uri', 'o_lang' => '', 'o_datatype' => ''); |
|
459
|
|
|
$closed = 1; |
|
460
|
|
|
$proceed = 0; |
|
461
|
|
|
} |
|
462
|
|
|
else { |
|
463
|
|
|
$next_s = $this->createBnodeID(); |
|
464
|
|
|
$r['triples'][] = array('type' => 'triple', 's' => $s, 'p' => $this->rdf . 'rest', 'o' => $next_s, 's_type' => 'bnode', 'p_type' => 'uri', 'o_type' => 'bnode', 'o_lang' => '', 'o_datatype' => ''); |
|
465
|
|
|
$s = $next_s; |
|
466
|
|
|
} |
|
467
|
|
|
} |
|
468
|
|
|
} while ($proceed); |
|
469
|
|
|
if ($closed) { |
|
470
|
|
|
return array($r, $sub_v); |
|
471
|
|
|
} |
|
472
|
|
|
} |
|
473
|
|
|
return array (0, $v); |
|
474
|
|
|
} |
|
475
|
|
|
|
|
476
|
|
|
/* 42 */ |
|
477
|
|
|
|
|
478
|
|
|
function xVarOrTerm($v) { |
|
479
|
|
|
if ((list($sub_r, $sub_v) = $this->xVar($v)) && $sub_r) { |
|
480
|
|
|
return array($sub_r, $sub_v); |
|
481
|
|
|
} |
|
482
|
|
|
elseif ((list($sub_r, $sub_v) = $this->xGraphTerm($v)) && $sub_r) { |
|
483
|
|
|
return array($sub_r, $sub_v); |
|
484
|
|
|
} |
|
485
|
|
|
return array(0, $v); |
|
486
|
|
|
} |
|
487
|
|
|
|
|
488
|
|
|
/* 44, 74.., 75.. */ |
|
489
|
|
|
|
|
490
|
|
|
function xVar($v) { |
|
491
|
|
|
if ($r = $this->x('(\?|\$)([^\s]+)', $v)) { |
|
492
|
|
|
if ((list($sub_r, $sub_v) = $this->xVARNAME($r[2])) && $sub_r) { |
|
493
|
|
|
if (!in_array($sub_r, $this->r['vars'])) { |
|
494
|
|
|
$this->r['vars'][] = $sub_r; |
|
495
|
|
|
} |
|
496
|
|
|
return array(array('value' => $sub_r, 'type' => 'var'), $sub_v . $r[3]); |
|
497
|
|
|
} |
|
498
|
|
|
} |
|
499
|
|
|
return array(0, $v); |
|
500
|
|
|
} |
|
501
|
|
|
|
|
502
|
|
|
/* 45 */ |
|
503
|
|
|
|
|
504
|
|
|
function xGraphTerm($v) { |
|
505
|
|
|
foreach (array( |
|
506
|
|
|
'IRIref' => 'uri', |
|
507
|
|
|
'RDFLiteral' => 'literal', |
|
508
|
|
|
'NumericLiteral' => 'literal', |
|
509
|
|
|
'BooleanLiteral' => 'literal', |
|
510
|
|
|
'BlankNode' => 'bnode', |
|
511
|
|
|
'NIL' => 'uri', |
|
512
|
|
|
'Placeholder' => 'placeholder' |
|
513
|
|
|
) as $term => $type) { |
|
514
|
|
|
$m = 'x' . $term; |
|
515
|
|
|
if ((list($sub_r, $sub_v) = $this->$m($v)) && $sub_r) { |
|
516
|
|
|
if (!is_array($sub_r)) { |
|
517
|
|
|
$sub_r = array('value' => $sub_r); |
|
518
|
|
|
} |
|
519
|
|
|
$sub_r['type'] = $this->v1('type', $type, $sub_r); |
|
520
|
|
|
return array($sub_r, $sub_v); |
|
521
|
|
|
} |
|
522
|
|
|
} |
|
523
|
|
|
return array(0, $v); |
|
524
|
|
|
} |
|
525
|
|
|
|
|
526
|
|
|
/* 60 */ |
|
527
|
|
|
|
|
528
|
|
|
function xRDFLiteral($v) { |
|
529
|
|
|
if ((list($sub_r, $sub_v) = $this->xString($v)) && $sub_r) { |
|
530
|
|
|
$sub_r['value'] = $this->unescapeNtripleUTF($sub_r['value']); |
|
531
|
|
|
$r = $sub_r; |
|
532
|
|
|
if ((list($sub_r, $sub_v) = $this->xLANGTAG($sub_v)) && $sub_r) { |
|
533
|
|
|
$r['lang'] = $sub_r; |
|
534
|
|
|
} |
|
535
|
|
|
elseif (!$this->x('\s', $sub_v) && ($sub_r = $this->x('\^\^', $sub_v)) && (list($sub_r, $sub_v) = $this->xIRIref($sub_r[1])) && $sub_r[1]) { |
|
536
|
|
|
$r['datatype'] = $sub_r; |
|
537
|
|
|
} |
|
538
|
|
|
return array($r, $sub_v); |
|
539
|
|
|
} |
|
540
|
|
|
return array(0, $v); |
|
541
|
|
|
} |
|
542
|
|
|
|
|
543
|
|
|
/* 61.., 62.., 63.., 64.. */ |
|
544
|
|
|
|
|
545
|
|
|
function xNumericLiteral($v) { |
|
546
|
|
|
$sub_r = $this->x('(\-|\+)?', $v); |
|
547
|
|
|
$prefix = $sub_r[1]; |
|
548
|
|
|
$sub_v = $sub_r[2]; |
|
549
|
|
|
foreach (array('DOUBLE' => 'double', 'DECIMAL' => 'decimal', 'INTEGER' => 'integer') as $type => $xsd) { |
|
550
|
|
|
$m = 'x' . $type; |
|
551
|
|
|
if ((list($sub_r, $sub_v) = $this->$m($sub_v)) && ($sub_r !== false)) { |
|
552
|
|
|
$r = array('value' => $prefix . $sub_r, 'type' => 'literal', 'datatype' => $this->xsd . $xsd); |
|
553
|
|
|
return array($r, $sub_v); |
|
554
|
|
|
} |
|
555
|
|
|
} |
|
556
|
|
|
return array(0, $v); |
|
557
|
|
|
} |
|
558
|
|
|
|
|
559
|
|
|
/* 65.. */ |
|
560
|
|
|
|
|
561
|
|
|
function xBooleanLiteral($v) { |
|
562
|
|
|
if ($r = $this->x('(true|false)', $v)) { |
|
563
|
|
|
return array($r[1], $r[2]); |
|
564
|
|
|
} |
|
565
|
|
|
return array(0, $v); |
|
566
|
|
|
} |
|
567
|
|
|
|
|
568
|
|
|
/* 66.., 87.., 88.., 89.., 90.., 91.. */ |
|
569
|
|
|
|
|
570
|
|
|
function xString($v) {/* largely simplified, may need some tweaks in following revisions */ |
|
571
|
|
|
$sub_v = $v; |
|
572
|
|
|
if (!preg_match('/^\s*([\']{3}|\'|[\"]{3}|\")(.*)$/s', $sub_v, $m)) return array(0, $v); |
|
573
|
|
|
$delim = $m[1]; |
|
574
|
|
|
$rest = $m[2]; |
|
575
|
|
|
$sub_types = array("'''" => 'literal_long1', '"""' => 'literal_long2', "'" => 'literal1', '"' => 'literal2'); |
|
576
|
|
|
$sub_type = $sub_types[$delim]; |
|
577
|
|
|
$pos = 0; |
|
578
|
|
|
$r = false; |
|
579
|
|
|
do { |
|
580
|
|
|
$proceed = 0; |
|
581
|
|
|
$delim_pos = strpos($rest, $delim, $pos); |
|
582
|
|
|
if ($delim_pos === false) break; |
|
583
|
|
|
$new_rest = substr($rest, $delim_pos + strlen($delim)); |
|
584
|
|
|
$r = substr($rest, 0, $delim_pos); |
|
585
|
|
|
if (!preg_match('/([\x5c]+)$/s', $r, $m) || !(strlen($m[1]) % 2)) { |
|
586
|
|
|
$rest = $new_rest; |
|
587
|
|
|
} |
|
588
|
|
|
else { |
|
589
|
|
|
$r = false; |
|
590
|
|
|
$pos = $delim_pos + 1; |
|
591
|
|
|
$proceed = 1; |
|
592
|
|
|
} |
|
593
|
|
|
} while ($proceed); |
|
594
|
|
|
if ($r !== false) { |
|
595
|
|
|
return array(array('value' => $this->toUTF8($r) , 'type' => 'literal', 'sub_type' => $sub_type), $rest); |
|
596
|
|
|
} |
|
597
|
|
|
return array(0, $v); |
|
598
|
|
|
} |
|
599
|
|
|
|
|
600
|
|
|
/* 67 */ |
|
601
|
|
|
|
|
602
|
|
|
function xIRIref($v) { |
|
603
|
|
|
if ((list($r, $v) = $this->xIRI_REF($v)) && $r) { |
|
604
|
|
|
return array($this->calcURI($r, $this->base), $v); |
|
605
|
|
|
} |
|
606
|
|
|
elseif ((list($r, $v) = $this->xPrefixedName($v)) && $r) { |
|
607
|
|
|
return array($r, $v); |
|
608
|
|
|
} |
|
609
|
|
|
return array(0, $v); |
|
610
|
|
|
} |
|
611
|
|
|
|
|
612
|
|
|
/* 68 */ |
|
613
|
|
|
|
|
614
|
|
|
function xPrefixedName($v) { |
|
615
|
|
|
if ((list($r, $v) = $this->xPNAME_LN($v)) && $r) { |
|
616
|
|
|
return array($r, $v); |
|
617
|
|
|
} |
|
618
|
|
|
elseif ((list($r, $sub_v) = $this->xPNAME_NS($v)) && $r) { |
|
619
|
|
|
return isset($this->prefixes[$r]) ? array($this->prefixes[$r], $sub_v) : array(0, $v); |
|
620
|
|
|
} |
|
621
|
|
|
return array(0, $v); |
|
622
|
|
|
} |
|
623
|
|
|
|
|
624
|
|
|
/* 69.., 73.., 93, 94.. */ |
|
625
|
|
|
|
|
626
|
|
|
function xBlankNode($v) { |
|
627
|
|
|
if (($r = $this->x('\_\:', $v)) && (list($r, $sub_v) = $this->xPN_LOCAL($r[1])) && $r) { |
|
628
|
|
|
return array(array('type' => 'bnode', 'value' => '_:' . $r), $sub_v); |
|
629
|
|
|
} |
|
630
|
|
|
if ($r = $this->x('\[[\x20\x9\xd\xa]*\]', $v)) { |
|
631
|
|
|
return array(array('type' => 'bnode', 'value' => $this->createBnodeID()), $r[1]); |
|
632
|
|
|
} |
|
633
|
|
|
return array(0, $v); |
|
634
|
|
|
} |
|
635
|
|
|
|
|
636
|
|
|
/* 70.. @@sync with SPARQLParser */ |
|
637
|
|
|
|
|
638
|
|
|
function xIRI_REF($v) { |
|
639
|
|
|
//if ($r = $this->x('\<([^\<\>\"\{\}\|\^\'[:space:]]*)\>', $v)) { |
|
640
|
|
|
if (($r = $this->x('\<(\$\{[^\>]*\})\>', $v)) && ($sub_r = $this->xPlaceholder($r[1]))) { |
|
641
|
|
|
return array($r[1], $r[2]); |
|
642
|
|
|
} |
|
643
|
|
|
elseif ($r = $this->x('\<\>', $v)) { |
|
644
|
|
|
return array(true, $r[1]); |
|
645
|
|
|
} |
|
646
|
|
|
elseif ($r = $this->x('\<([^\s][^\<\>]*)\>', $v)) { |
|
647
|
|
|
return array($r[1] ? $r[1] : true, $r[2]); |
|
648
|
|
|
} |
|
649
|
|
|
return array(0, $v); |
|
650
|
|
|
} |
|
651
|
|
|
|
|
652
|
|
|
/* 71 */ |
|
653
|
|
|
|
|
654
|
|
|
function xPNAME_NS($v) { |
|
655
|
|
|
list($r, $sub_v) = $this->xPN_PREFIX($v); |
|
656
|
|
|
$prefix = $r ? $r : ''; |
|
657
|
|
|
return ($r = $this->x("\:", $sub_v)) ? array($prefix . ':', $r[1]) : array(0, $v); |
|
658
|
|
|
} |
|
659
|
|
|
|
|
660
|
|
|
/* 72 */ |
|
661
|
|
|
|
|
662
|
|
|
function xPNAME_LN($v) { |
|
663
|
|
|
if ((list($r, $sub_v) = $this->xPNAME_NS($v)) && $r) { |
|
664
|
|
|
if (!$this->x('\s', $sub_v) && (list($sub_r, $sub_v) = $this->xPN_LOCAL($sub_v)) && $sub_r) { |
|
665
|
|
|
if (!isset($this->prefixes[$r])) { |
|
666
|
|
|
return array(0, $v); |
|
667
|
|
|
} |
|
668
|
|
|
return array($this->prefixes[$r] . $sub_r, $sub_v); |
|
669
|
|
|
} |
|
670
|
|
|
} |
|
671
|
|
|
return array(0, $v); |
|
672
|
|
|
} |
|
673
|
|
|
|
|
674
|
|
|
/* 76 */ |
|
675
|
|
|
|
|
676
|
|
|
function xLANGTAG($v) { |
|
677
|
|
|
if (!$this->x('\s', $v) && ($r = $this->x('\@([a-z]+(\-[a-z0-9]+)*)', $v))) { |
|
678
|
|
|
return array($r[1], $r[3]); |
|
679
|
|
|
} |
|
680
|
|
|
return array(0, $v); |
|
681
|
|
|
} |
|
682
|
|
|
|
|
683
|
|
|
/* 77.. */ |
|
684
|
|
|
|
|
685
|
|
|
function xINTEGER($v) { |
|
686
|
|
|
if ($r = $this->x('([0-9]+)', $v)) { |
|
687
|
|
|
return array($r[1], $r[2]); |
|
688
|
|
|
} |
|
689
|
|
|
return array(false, $v); |
|
690
|
|
|
} |
|
691
|
|
|
|
|
692
|
|
|
/* 78.. */ |
|
693
|
|
|
|
|
694
|
|
|
function xDECIMAL($v) { |
|
695
|
|
|
if ($r = $this->x('([0-9]+\.[0-9]*)', $v)) { |
|
696
|
|
|
return array($r[1], $r[2]); |
|
697
|
|
|
} |
|
698
|
|
|
if ($r = $this->x('(\.[0-9]+)', $v)) { |
|
699
|
|
|
return array($r[1], $r[2]); |
|
700
|
|
|
} |
|
701
|
|
|
return array(false, $v); |
|
702
|
|
|
} |
|
703
|
|
|
|
|
704
|
|
|
/* 79.., 86.. */ |
|
705
|
|
|
|
|
706
|
|
|
function xDOUBLE($v) { |
|
707
|
|
|
if ($r = $this->x('([0-9]+\.[0-9]*E[\+\-]?[0-9]+)', $v)) { |
|
708
|
|
|
return array($r[1], $r[2]); |
|
709
|
|
|
} |
|
710
|
|
|
if ($r = $this->x('(\.[0-9]+E[\+\-]?[0-9]+)', $v)) { |
|
711
|
|
|
return array($r[1], $r[2]); |
|
712
|
|
|
} |
|
713
|
|
|
if ($r = $this->x('([0-9]+E[\+\-]?[0-9]+)', $v)) { |
|
714
|
|
|
return array($r[1], $r[2]); |
|
715
|
|
|
} |
|
716
|
|
|
return array(false, $v); |
|
717
|
|
|
} |
|
718
|
|
|
|
|
719
|
|
|
/* 92 */ |
|
720
|
|
|
|
|
721
|
|
|
function xNIL($v) { |
|
722
|
|
|
if ($r = $this->x('\([\x20\x9\xd\xa]*\)', $v)) { |
|
723
|
|
|
return array(array('type' => 'uri', 'value' => $this->rdf . 'nil'), $r[1]); |
|
724
|
|
|
} |
|
725
|
|
|
return array(0, $v); |
|
726
|
|
|
} |
|
727
|
|
|
|
|
728
|
|
|
/* 95.. */ |
|
729
|
|
|
|
|
730
|
|
|
function xPN_CHARS_BASE($v) { |
|
731
|
|
|
if ($r = $this->x("([a-z]+|\\\u[0-9a-f]{1,4})", $v)) { |
|
732
|
|
|
return array($r[1], $r[2]); |
|
733
|
|
|
} |
|
734
|
|
|
return array(0, $v); |
|
735
|
|
|
} |
|
736
|
|
|
|
|
737
|
|
|
/* 96 */ |
|
738
|
|
|
|
|
739
|
|
|
function xPN_CHARS_U($v) { |
|
740
|
|
|
if ((list($r, $sub_v) = $this->xPN_CHARS_BASE($v)) && $r) { |
|
741
|
|
|
return array($r, $sub_v); |
|
742
|
|
|
} |
|
743
|
|
|
elseif ($r = $this->x("(_)", $v)) { |
|
744
|
|
|
return array($r[1], $r[2]); |
|
745
|
|
|
} |
|
746
|
|
|
return array(0, $v); |
|
747
|
|
|
} |
|
748
|
|
|
|
|
749
|
|
|
/* 97.. */ |
|
750
|
|
|
|
|
751
|
|
|
function xVARNAME($v) { |
|
752
|
|
|
$r = ''; |
|
753
|
|
|
do { |
|
754
|
|
|
$proceed = 0; |
|
755
|
|
|
if ($sub_r = $this->x('([0-9]+)', $v)) { |
|
756
|
|
|
$r .= $sub_r[1]; |
|
757
|
|
|
$v = $sub_r[2]; |
|
758
|
|
|
$proceed = 1; |
|
759
|
|
|
} |
|
760
|
|
|
elseif ((list($sub_r, $sub_v) = $this->xPN_CHARS_U($v)) && $sub_r) { |
|
761
|
|
|
$r .= $sub_r; |
|
762
|
|
|
$v = $sub_v; |
|
763
|
|
|
$proceed = 1; |
|
764
|
|
|
} |
|
765
|
|
|
elseif ($r && ($sub_r = $this->x('([\xb7\x300-\x36f]+)', $v))) { |
|
766
|
|
|
$r .= $sub_r[1]; |
|
767
|
|
|
$v = $sub_r[2]; |
|
768
|
|
|
$proceed = 1; |
|
769
|
|
|
} |
|
770
|
|
|
} while ($proceed); |
|
771
|
|
|
return array($r, $v); |
|
772
|
|
|
} |
|
773
|
|
|
|
|
774
|
|
|
/* 98.. */ |
|
775
|
|
|
|
|
776
|
|
|
function xPN_CHARS($v) { |
|
777
|
|
|
if ((list($r, $sub_v) = $this->xPN_CHARS_U($v)) && $r) { |
|
778
|
|
|
return array($r, $sub_v); |
|
779
|
|
|
} |
|
780
|
|
|
elseif ($r = $this->x('([\-0-9\xb7\x300-\x36f])', $v)) { |
|
781
|
|
|
return array($r[1], $r[2]); |
|
782
|
|
|
} |
|
783
|
|
|
return array(false, $v); |
|
784
|
|
|
} |
|
785
|
|
|
|
|
786
|
|
|
/* 99 */ |
|
787
|
|
|
|
|
788
|
|
|
function xPN_PREFIX($v) { |
|
789
|
|
|
if ($sub_r = $this->x("([^\s\:\(\)\{\}\;\,]+)", $v, 's')) {/* accelerator */ |
|
790
|
|
|
return array($sub_r[1], $sub_r[2]);/* @@testing */ |
|
791
|
|
|
} |
|
792
|
|
|
if ((list($r, $sub_v) = $this->xPN_CHARS_BASE($v)) && $r) { |
|
793
|
|
|
do { |
|
794
|
|
|
$proceed = 0; |
|
795
|
|
|
list($sub_r, $sub_v) = $this->xPN_CHARS($sub_v); |
|
796
|
|
|
if ($sub_r !== false) { |
|
797
|
|
|
$r .= $sub_r; |
|
798
|
|
|
$proceed = 1; |
|
799
|
|
|
} |
|
800
|
|
|
elseif ($sub_r = $this->x("\.", $sub_v)) { |
|
801
|
|
|
$r .= '.'; |
|
802
|
|
|
$sub_v = $sub_r[1]; |
|
803
|
|
|
$proceed = 1; |
|
804
|
|
|
} |
|
805
|
|
|
} while ($proceed); |
|
806
|
|
|
list($sub_r, $sub_v) = $this->xPN_CHARS($sub_v); |
|
807
|
|
|
$r .= $sub_r ? $sub_r : ''; |
|
808
|
|
|
} |
|
809
|
|
|
return array($r, $sub_v); |
|
810
|
|
|
} |
|
811
|
|
|
|
|
812
|
|
|
/* 100 */ |
|
813
|
|
|
|
|
814
|
|
|
function xPN_LOCAL($v) { |
|
815
|
|
|
if (($sub_r = $this->x("([^\s\(\)\{\}\[\]\;\,\.]+)", $v, 's')) && !preg_match('/^\./', $sub_r[2])) {/* accelerator */ |
|
816
|
|
|
return array($sub_r[1], $sub_r[2]);/* @@testing */ |
|
817
|
|
|
} |
|
818
|
|
|
$r = ''; |
|
819
|
|
|
$sub_v = $v; |
|
820
|
|
|
do { |
|
821
|
|
|
$proceed = 0; |
|
822
|
|
|
if ($this->x('\s', $sub_v)) { |
|
823
|
|
|
return array($r, $sub_v); |
|
824
|
|
|
} |
|
825
|
|
|
if ($sub_r = $this->x('([0-9])', $sub_v)) { |
|
826
|
|
|
$r .= $sub_r[1]; |
|
827
|
|
|
$sub_v = $sub_r[2]; |
|
828
|
|
|
$proceed = 1; |
|
829
|
|
|
} |
|
830
|
|
|
elseif ((list($sub_r, $sub_v) = $this->xPN_CHARS_U($sub_v)) && $sub_r) { |
|
831
|
|
|
$r .= $sub_r; |
|
832
|
|
|
$proceed = 1; |
|
833
|
|
|
} |
|
834
|
|
|
elseif ($r) { |
|
835
|
|
|
if (($sub_r = $this->x('(\.)', $sub_v)) && !preg_match('/^[\s\}]/s', $sub_r[2])) { |
|
836
|
|
|
$r .= $sub_r[1]; |
|
837
|
|
|
$sub_v = $sub_r[2]; |
|
838
|
|
|
} |
|
839
|
|
|
if ((list($sub_r, $sub_v) = $this->xPN_CHARS($sub_v)) && $sub_r) { |
|
840
|
|
|
$r .= $sub_r; |
|
841
|
|
|
$proceed = 1; |
|
842
|
|
|
} |
|
843
|
|
|
} |
|
844
|
|
|
} while ($proceed); |
|
845
|
|
|
return array($r, $sub_v); |
|
846
|
|
|
} |
|
847
|
|
|
|
|
848
|
|
|
/* */ |
|
849
|
|
|
|
|
850
|
|
|
function unescapeNtripleUTF($v) { |
|
851
|
|
|
if (strpos($v, '\\') === false) return $v; |
|
852
|
|
|
$mappings = array('t' => "\t", 'n' => "\n", 'r' => "\r", '\"' => '"', '\'' => "'"); |
|
853
|
|
|
foreach ($mappings as $in => $out) { |
|
854
|
|
|
$v = preg_replace('/\x5c([' . $in . '])/', $out, $v); |
|
855
|
|
|
} |
|
856
|
|
|
if (strpos(strtolower($v), '\u') === false) return $v; |
|
857
|
|
|
while (preg_match('/\\\(U)([0-9A-F]{8})/', $v, $m) || preg_match('/\\\(u)([0-9A-F]{4})/', $v, $m)) { |
|
858
|
|
|
$no = hexdec($m[2]); |
|
859
|
|
|
if ($no < 128) $char = chr($no); |
|
860
|
|
|
else if ($no < 2048) $char = chr(($no >> 6) + 192) . chr(($no & 63) + 128); |
|
861
|
|
|
else if ($no < 65536) $char = chr(($no >> 12) + 224) . chr((($no >> 6) & 63) + 128) . chr(($no & 63) + 128); |
|
862
|
|
|
else if ($no < 2097152) $char = chr(($no >> 18) + 240) . chr((($no >> 12) & 63) + 128) . chr((($no >> 6) & 63) + 128) . chr(($no & 63) + 128); |
|
863
|
|
|
else $char= ''; |
|
864
|
|
|
$v = str_replace('\\' . $m[1] . $m[2], $char, $v); |
|
865
|
|
|
} |
|
866
|
|
|
return $v; |
|
867
|
|
|
} |
|
868
|
|
|
|
|
869
|
|
|
/* */ |
|
870
|
|
|
|
|
871
|
|
|
function xPlaceholder($v) { |
|
872
|
|
|
//if ($r = $this->x('(\?|\$)\{([^\}]+)\}', $v)) { |
|
873
|
|
|
if ($r = $this->x('(\?|\$)', $v)) { |
|
874
|
|
|
if (preg_match('/(\{(?:[^{}]+|(?R))*\})/', $r[2], $m) && strpos(trim($r[2]), $m[1]) === 0) { |
|
875
|
|
|
$ph = substr($m[1], 1, -1); |
|
876
|
|
|
$rest = substr(trim($r[2]), strlen($m[1])); |
|
877
|
|
|
if (!isset($this->r['placeholders'])) $this->r['placeholders'] = array(); |
|
878
|
|
|
if (!in_array($ph, $this->r['placeholders'])) $this->r['placeholders'][] = $ph; |
|
879
|
|
|
return array(array('value' => $ph, 'type' => 'placeholder'), $rest); |
|
880
|
|
|
} |
|
881
|
|
|
} |
|
882
|
|
|
return array(0, $v); |
|
883
|
|
|
} |
|
884
|
|
|
|
|
885
|
|
|
/* */ |
|
886
|
|
|
} |
|
887
|
|
|
|
Enalean /
tuleap
