From c5eb1148b99cf88555c0a516e1218bdb74ab0080 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Tue, 1 May 2007 04:01:04 +0000
Subject: Converted Raul (and thus Ingen and Machina) to use Redland over
 Raptor/Rasqal independently. Fixed patch loading for Ingen (local only, still
 something wrong with remote...).

git-svn-id: http://svn.drobilla.net/lad/raul@486 a436a847-0d15-0410-975c-d299462d15a1
---
 src/RDFNode.cpp | 140 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 140 insertions(+)
 create mode 100644 src/RDFNode.cpp

(limited to 'src/RDFNode.cpp')

diff --git a/src/RDFNode.cpp b/src/RDFNode.cpp
new file mode 100644
index 0000000..2278a7a
--- /dev/null
+++ b/src/RDFNode.cpp
@@ -0,0 +1,140 @@
+/* This file is part of Raul.
+ * Copyright (C) 2007 Dave Robillard <http://drobilla.net>
+ * 
+ * Raul is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at your option) any later
+ * version.
+ * 
+ * Raul is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for details.
+ * 
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <string>
+#include <raul/RDFWorld.h>
+#include <raul/RDFNode.h>
+
+using namespace std;
+
+namespace Raul {
+namespace RDF {
+
+
+Node::Node(World& world, Type type, const std::string& s)
+{
+	if (type == RESOURCE)
+		_node = librdf_new_node_from_uri_string(world.world(), (const unsigned char*)s.c_str());
+	else if (type == LITERAL)
+		_node = librdf_new_node_from_literal(world.world(), (const unsigned char*)s.c_str(), NULL, 0);
+	else if (type == BLANK)
+		_node = librdf_new_node_from_blank_identifier(world.world(), (const unsigned char*)s.c_str());
+	else
+		_node = NULL;
+
+	assert(this->type() == type);
+}
+	
+
+Node::Node(World& world)
+	: _node(librdf_new_node(world.world()))
+{
+}
+
+
+Node::Node(librdf_node* node)
+	: _node(librdf_new_node_from_node(node))
+{
+	assert(node);
+}
+
+
+Node::Node(const Node& other)
+	: _node(other._node ? librdf_new_node_from_node(other._node): NULL)
+{
+}
+
+
+Node::~Node()
+{
+	if (_node)
+		librdf_free_node(_node);
+}
+
+
+string
+Node::to_string() const
+{
+	const Type type = this->type();
+	if (type == RESOURCE) {
+		return string((const char*)librdf_uri_as_string(librdf_node_get_uri(_node)));
+	} else if (type == LITERAL) {
+		return string((const char*)librdf_node_get_literal_value(_node));
+	} else if (type == BLANK) {
+		return string((const char*)librdf_node_get_blank_identifier(_node));
+	} else {
+		return "";
+	}
+}
+
+
+string
+Node::to_quoted_uri_string() const
+{
+	assert(type() == RESOURCE);
+	string str = "<";
+	str.append((const char*)librdf_uri_as_string(librdf_node_get_uri(_node)));
+	str.append(">");
+	return str;
+}
+
+
+bool
+Node::is_int()
+{
+	if (_node && librdf_node_get_type(_node) == LIBRDF_NODE_TYPE_LITERAL) {
+		librdf_uri* datatype_uri = librdf_node_get_literal_value_datatype_uri(_node);
+		if (datatype_uri && !strcmp((const char*)librdf_uri_as_string(datatype_uri),
+					"http://www.w3.org/2001/XMLSchema#integer"))
+			return true;
+	}
+	return false;
+}
+
+
+int
+Node::to_int()
+{
+	assert(is_int());
+	return strtol((const char*)librdf_node_get_literal_value(_node), NULL, 10);
+}
+
+
+bool
+Node::is_float()
+{
+	if (_node && librdf_node_get_type(_node) == LIBRDF_NODE_TYPE_LITERAL) {
+		librdf_uri* datatype_uri = librdf_node_get_literal_value_datatype_uri(_node);
+		if (datatype_uri && !strcmp((const char*)librdf_uri_as_string(datatype_uri),
+					"http://www.w3.org/2001/XMLSchema#decimal"))
+			return true;
+	}
+	return false;
+}
+
+
+float
+Node::to_float()
+{
+	assert(is_float());
+	return strtod((const char*)librdf_node_get_literal_value(_node), NULL);
+}
+
+
+} // namespace RDF
+} // namespace Raul
+
-- 
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