From 94d3433dcf0e77d2c867c9a2dd6928acfea4184c Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Wed, 24 Feb 2021 15:49:21 -0500
Subject: Add serd_node_uri_view()

---
 include/serd/node.h | 14 ++++++++++++++
 src/node.c          | 12 ++++++++++++
 test/test_node.c    | 16 +++++++++++-----
 3 files changed, 37 insertions(+), 5 deletions(-)

diff --git a/include/serd/node.h b/include/serd/node.h
index 75725516..1c64b6b9 100644
--- a/include/serd/node.h
+++ b/include/serd/node.h
@@ -250,6 +250,20 @@ serd_node_string(const SerdNode* SERD_NONNULL node);
 SERD_PURE_API SerdStringView
 serd_node_string_view(const SerdNode* SERD_NONNULL node);
 
+/**
+   Return a parsed view of the URI in a node.
+
+   It is best to check the node type before calling this function, though it is
+   safe to call on non-URI nodes.  In that case, it will return a null view
+   with all fields zero.
+
+   Note that this parses the URI string contained in the node, so it is a good
+   idea to keep the value if you will be using it several times in the same
+   scope.
+*/
+SERD_API SerdURIView
+serd_node_uri_view(const SerdNode* SERD_NONNULL node);
+
 /**
    @}
    @defgroup serd_node_operators Operators
diff --git a/src/node.c b/src/node.c
index c4620671..9acbb8be 100644
--- a/src/node.c
+++ b/src/node.c
@@ -458,6 +458,18 @@ serd_node_string_view(const SerdNode* const node)
   return r;
 }
 
+SerdURIView
+serd_node_uri_view(const SerdNode* const node)
+{
+  SerdURIView result = SERD_URI_NULL;
+
+  if (node->type == SERD_URI) {
+    serd_uri_parse(serd_node_string(node), &result);
+  }
+
+  return result;
+}
+
 SerdNodeFlags
 serd_node_flags(const SerdNode* const node)
 {
diff --git a/test/test_node.c b/test/test_node.c
index a76bcd35..11351e31 100644
--- a/test/test_node.c
+++ b/test/test_node.c
@@ -166,14 +166,20 @@ test_node_equals(void)
 static void
 test_node_from_string(void)
 {
-  SerdNode* hello = serd_new_string(SERD_LITERAL, "hello\"");
-  assert(serd_node_length(hello) == 6 &&
-         serd_node_flags(hello) == SERD_HAS_QUOTE &&
-         !strcmp(serd_node_string(hello), "hello\""));
-
+  SerdNode* const hello = serd_new_string(SERD_LITERAL, "hello\"");
+  assert(serd_node_length(hello) == 6);
+  assert(serd_node_flags(hello) == SERD_HAS_QUOTE);
+  assert(!strcmp(serd_node_string(hello), "hello\""));
   assert(!strcmp(serd_node_string_view(hello).data, "hello\""));
   assert(serd_node_string_view(hello).length == 6);
   serd_node_free(hello);
+
+  SerdNode* const uri = serd_new_string(SERD_URI, "http://example.org/");
+  assert(serd_node_length(uri) == 19);
+  assert(!strcmp(serd_node_string(uri), "http://example.org/"));
+  assert(serd_node_uri_view(uri).authority.length == 11);
+  assert(!strncmp(serd_node_uri_view(uri).authority.data, "example.org", 11));
+  serd_node_free(uri);
 }
 
 static void
-- 
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