Add model and serd-sort utility

With all the new functionality, the complexity of the serd-pipe command-line
interface is starting to push the limits of available flags. So, instead of
grafting on further options to control a model, this commit adds a new tool,
serd-sort, which acts somewhat like a stripped-down serd-pipe that stores
statements in a model in memory.

This keeps the complexity (including the user-facing complexity) of any one
tool down, since other more focused tools can be used for streaming tasks in a
pipeline.

In other words, abandon Swissarmyknifeism, take a page from the Unix
philosophy, and try to expose the model functionality to the command-line in a
dedicated focused tool.  The model implementation is tested by using this tool
to run a subset of the usual test suites, and a special suite to test statement
sorting.

1 files changed, 6 insertions, 0 deletions

diff --git a/test/test_free_null.c b/test/test_free_null.c
index 7b186fba..89846c7f 100644
--- a/test/test_free_null.c
+++ b/test/test_free_null.c
@@ -4,12 +4,15 @@
 #undef NDEBUG
 
 #include "serd/caret.h"
+#include "serd/cursor.h"
 #include "serd/env.h"
 #include "serd/memory.h"
+#include "serd/model.h"
 #include "serd/node.h"
 #include "serd/nodes.h"
 #include "serd/reader.h"
 #include "serd/sink.h"
+#include "serd/statement.h"
 #include "serd/world.h"
 #include "serd/writer.h"
 
@@ -27,6 +30,9 @@ main(void)
   serd_writer_free(NULL);
   serd_nodes_free(NULL);
   serd_caret_free(NULL, NULL);
+  serd_model_free(NULL);
+  serd_statement_free(NULL, NULL);
+  serd_cursor_free(NULL, NULL);
 
   return 0;
 }