From 436b2362b00543e67194664318e96d965fe390b6 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Tue, 22 May 2018 19:37:04 +0200
Subject: Add sink API

---
 serd/serd.h | 29 +++++++++++++++++++++++++++++
 src/sink.c  | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 wscript     |  1 +
 3 files changed, 91 insertions(+)
 create mode 100644 src/sink.c

diff --git a/serd/serd.h b/serd/serd.h
index 514fccf4..b9cced8d 100644
--- a/serd/serd.h
+++ b/serd/serd.h
@@ -916,6 +916,35 @@ serd_env_foreach(const SerdEnv* env,
                  SerdPrefixSink func,
                  void*          handle);
 
+/**
+   @}
+   @name Sink
+   @{
+*/
+
+SERD_API
+SerdStatus
+serd_sink_set_base(const SerdSinkInterface* sink, const SerdNode* uri);
+
+SERD_API
+SerdStatus
+serd_sink_set_prefix(const SerdSinkInterface* sink,
+                     const SerdNode*    name,
+                     const SerdNode*    uri);
+
+SERD_API
+SerdStatus
+serd_sink_write_statement(const SerdSinkInterface* sink,
+                          const SerdStatement*     statement);
+
+SERD_API
+SerdStatus
+serd_sink_write_range(const SerdSinkInterface* sink, SerdIter* iter);
+
+SERD_API
+SerdStatus
+serd_sink_end(const SerdSinkInterface* sink, const SerdNode* node);
+
 /**
    @}
    @name Reader
diff --git a/src/sink.c b/src/sink.c
new file mode 100644
index 00000000..40d48562
--- /dev/null
+++ b/src/sink.c
@@ -0,0 +1,61 @@
+/*
+  Copyright 2011-2014 David Robillard <http://drobilla.net>
+
+  Permission to use, copy, modify, and/or distribute this software for any
+  purpose with or without fee is hereby granted, provided that the above
+  copyright notice and this permission notice appear in all copies.
+
+  THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+#include "serd/serd.h"
+
+SerdStatus
+serd_sink_set_base(const SerdSinkInterface* sink, const SerdNode* uri)
+{
+	return sink->base(sink->handle, uri);
+}
+
+SerdStatus
+serd_sink_set_prefix(const SerdSinkInterface* sink,
+                     const SerdNode*          name,
+                     const SerdNode*          uri)
+{
+	return sink->prefix(sink->handle, name, uri);
+}
+
+SerdStatus
+serd_sink_write_statement(const SerdSinkInterface* sink,
+                          const SerdStatement*     statement)
+{
+	return sink->statement(sink->handle,
+	                       0, // FIXME: flags
+	                       serd_statement_get_graph(statement),
+	                       serd_statement_get_subject(statement),
+	                       serd_statement_get_predicate(statement),
+	                       serd_statement_get_object(statement));
+}
+
+SerdStatus
+serd_sink_write_range(const SerdSinkInterface* sink, SerdIter* iter)
+{
+	SerdStatus st = SERD_SUCCESS;
+	for (; !st && !serd_iter_end(iter); serd_iter_next(iter)) {
+		st = serd_sink_write_statement(sink, serd_iter_get(iter));
+	}
+	serd_iter_free(iter);
+
+	return st;
+}
+
+SerdStatus
+serd_sink_end(const SerdSinkInterface* sink, const SerdNode* node)
+{
+	return sink->end(sink->handle, node);
+}
diff --git a/wscript b/wscript
index 660e63c0..6471a1a9 100644
--- a/wscript
+++ b/wscript
@@ -96,6 +96,7 @@ lib_source = ['src/base64.c',
               'src/node.c',
               'src/nodes.c',
               'src/reader.c',
+              'src/sink.c',
               'src/statement.c',
               'src/string.c',
               'src/system.c',
-- 
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