Pretty RDF boolean reading.

git-svn-id: http://svn.drobilla.net/lad/raul@699 a436a847-0d15-0410-975c-d299462d15a1

2 files changed, 26 insertions, 0 deletions

diff --git a/raul/RDFNode.hpp b/raul/RDFNode.hpp
index 8a09699..13326f7 100644
--- a/raul/RDFNode.hpp
+++ b/raul/RDFNode.hpp
@@ -67,6 +67,9 @@ public:
 
 	bool  is_float();
 	float to_float();
+	
+	bool  is_bool();
+	float to_bool();
 
 private:
 	librdf_node* _node;
diff --git a/src/RDFNode.cpp b/src/RDFNode.cpp
index afba06c..a4c672f 100644
--- a/src/RDFNode.cpp
+++ b/src/RDFNode.cpp
@@ -134,6 +134,29 @@ Node::to_float()
 	return strtod((const char*)librdf_node_get_literal_value(_node), NULL);
 }
 
+bool
+Node::is_bool()
+{
+	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#boolean"))
+			return true;
+	}
+	return false;
+}
+
+
+float
+Node::to_bool()
+{
+	assert(is_bool());
+	if (!strcmp((const char*)librdf_node_get_literal_value(_node), "true"))
+		return true;
+	else
+		return false;
+}
+
 
 } // namespace RDF
 } // namespace Raul