re-add antlr and sparql parser (see OntoWiki issue #123)

AKSW · Sep 17, 2012 · c99c327 · c99c327
1 parent 7a658a8
commit c99c327
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diff --git a/library/Erfurt/Sparql/Parser/ErfurtParser.php b/library/Erfurt/Sparql/Parser/ErfurtParser.php
@@ -0,0 +1,41 @@
+<?php
+
+/**
+ * This file is part of the {@link http://aksw.org/Projects/Erfurt Erfurt} project.
+ *
+ * @copyright Copyright (c) 2009, {@link http://aksw.org AKSW}
+ * @license http://opensource.org/licenses/gpl-license.php GNU General Public License (GPL)
+ */
+
+/**
+ * @category Erfurt
+ * @package Sparql_Parser_Sparql
+ * @author Rolland Brunec <rollxx@gmail.com>
+ * @copyright Copyright (c) 2010 {@link http://aksw.org aksw}
+ * @license http://opensource.org/licenses/gpl-license.php GNU General Public License (GPL)
+ */
+
+require_once 'Erfurt/Sparql/Parser.php';
+
+class Erfurt_Sparql_Parser_ErfurtParser implements Erfurt_Sparql_Parser_Interface
+{
+
+	function __construct($parserOptions=array())
+	{
+		// TODO pass options?
+	}
+
+	public static function initFromString($queryString, $parserOptions = array()){
+		require_once 'Erfurt/Sparql/ParserException.php';
+		$retval=null;
+		$errors=null;
+		$parser = new Erfurt_Sparql_Parser($queryString);
+		try {
+			$retval = $parser->parse();
+		} catch (Erfurt_Sparql_ParserException $e) {
+			$errors = $e->__toString();
+		}
+		return array('retval' =>$retval, 'errors'=>$errors);
+	}
+
+}
diff --git a/library/Erfurt/Sparql/Parser/Interface.php b/library/Erfurt/Sparql/Parser/Interface.php
@@ -0,0 +1,28 @@
+<?php
+
+/**
+ * This file is part of the {@link http://aksw.org/Projects/Erfurt Erfurt} project.
+ *
+ * @copyright Copyright (c) 2010, {@link http://aksw.org AKSW}
+ * @license http://opensource.org/licenses/gpl-license.php GNU General Public License (GPL)
+ */
+
+/**
+ * @category Erfurt
+ * @package Sparql_Parser
+ * @author Rolland Brunec <rollxx@gmail.com>
+ * @copyright Copyright (c) 2010 {@link http://aksw.org aksw}
+ * @license http://opensource.org/licenses/gpl-license.php GNU General Public License (GPL)
+ */
+interface Erfurt_Sparql_Parser_Interface
+{
+
+	/**
+	 * @param string $queryString
+	 * @param array $parserOptions
+	 * @throws Parser Exception, if there was a poblem parsing the query 
+	 * @return Returns Erfurt_Sparql_Query2 object
+	 */
+	public static function initFromString($queryString, $parserOptions = array());
+
+}
diff --git a/library/Erfurt/Sparql/Parser/Rasqal.php b/library/Erfurt/Sparql/Parser/Rasqal.php
@@ -0,0 +1,40 @@
+<?php
+
+/**
+ * This file is part of the {@link http://aksw.org/Projects/Erfurt Erfurt} project.
+ *
+ * @copyright Copyright (c) 2010, {@link http://aksw.org AKSW}
+ * @license http://opensource.org/licenses/gpl-license.php GNU General Public License (GPL)
+ */
+
+/**
+ * @category Erfurt
+ * @package Sparql_Parser_Sparql
+ * @author Rolland Brunec <rollxx@gmail.com>
+ * @copyright Copyright (c) 2010 {@link http://aksw.org aksw}
+ * @license http://opensource.org/licenses/gpl-license.php GNU General Public License (GPL)
+ */
+
+class Erfurt_Sparql_Parser_Rasqal_Rasqal implements Erfurt_Sparql_Parser_Interface
+{
+	/**
+	 * 
+	 */
+	protected $_fallback = 'sparql10';
+
+	protected $_toString = 'toString';
+
+	private $_parserName = null;
+
+	private $_lexerName = null;
+
+	function __construct($parserOptions=array())
+	{
+	}
+
+	public function initFromString($queryString, $parserOptions = array()){
+	}
+}
+
+
+}
diff --git a/library/Erfurt/Sparql/Parser/Sparql10.php b/library/Erfurt/Sparql/Parser/Sparql10.php
@@ -0,0 +1,43 @@
+<?php
+
+/**
+ * This file is part of the {@link http://aksw.org/Projects/Erfurt Erfurt} project.
+ *
+ * @copyright Copyright (c) 2009, {@link http://aksw.org AKSW}
+ * @license http://opensource.org/licenses/gpl-license.php GNU General Public License (GPL)
+ */
+
+/**
+ * @category Erfurt
+ * @package Sparql_Parser_Sparql
+ * @author Rolland Brunec <rollxx@gmail.com>
+ * @copyright Copyright (c) 2010 {@link http://aksw.org aksw}
+ * @license http://opensource.org/licenses/gpl-license.php GNU General Public License (GPL)
+ */
+
+require_once 'antlr/Php/antlr.php';
+
+class Erfurt_Sparql_Parser_Sparql10 implements Erfurt_Sparql_Parser_Interface
+{
+	public static function initFromString($queryString, $parsePartial = null){
+		$retval=null;
+		$input = new Erfurt_Sparql_Parser_Util_CaseInsensitiveStream($queryString);
+		$lexer = new Erfurt_Sparql_Parser_Sparql10_Sparql10Lexer($input);
+//		if (!count($lexer->getErrors())) {
+			$tokens = new CommonTokenStream($lexer);
+			$parser = new Erfurt_Sparql_Parser_Sparql10_Sparql10Parser($tokens);
+			if($parsePartial != null && is_string($parsePartial) && method_exists($parser, $parsePartial)){
+                            $retval =  call_user_func( array( $parser, $parsePartial ) );
+                        } else {
+                            $retval =  $parser->parse();
+                        }
+//		}
+		return array('retval' =>$retval, 'errors'=>
+			//array_merge($lexer->getErrors(), 
+			//$parser?
+			$parser->getErrors()
+			//:array())
+			);
+	}
+
+}