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RDF serialziation to a C FILE*.
Machina graph drawing improvements.


git-svn-id: http://svn.drobilla.net/lad/raul@364 a436a847-0d15-0410-975c-d299462d15a1

2 files changed, 18 insertions, 0 deletions

diff --git a/raul/RDFWriter.h b/raul/RDFWriter.h
index 9a5d5b3..1cbccaa 100644
--- a/raul/RDFWriter.h
+++ b/raul/RDFWriter.h
@@ -52,6 +52,7 @@ public:
 	void add_prefix(const std::string& prefix, const std::string& uri);
 	std::string expand_uri(const std::string& uri);
 
+	void start_to_file_handle(FILE* fd)                 throw (std::logic_error);
 	void start_to_filename(const std::string& filename) throw (std::logic_error);
 	void start_to_string()                              throw (std::logic_error);
 	std::string finish()                                throw (std::logic_error);
diff --git a/src/RDFWriter.cpp b/src/RDFWriter.cpp
index f2d5626..6a69765 100644
--- a/src/RDFWriter.cpp
+++ b/src/RDFWriter.cpp
@@ -84,6 +84,23 @@ RDFWriter::blank_id()
 }
 
 
+/** Begin a serialization to a C file handle.
+ *
+ * This must be called before any write methods.
+ */
+void
+RDFWriter::start_to_file_handle(FILE* fd) throw (std::logic_error)
+{
+	if (_serializer)
+		throw std::logic_error("start_to_string called with serialization in progress");
+
+	raptor_init();
+	_serializer = raptor_new_serializer(RDF_LANG);
+	raptor_serialize_start_to_file_handle(_serializer, NULL, fd);
+	setup_prefixes();
+}
+
+
 /** Begin a serialization to a file.
  *
  * This must be called before any write methods.