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, 1 insertions, 11 deletions

diff --git a/tools/serd-filter.c b/tools/serd-filter.c
index 01834e5a..70d7b68c 100644
--- a/tools/serd-filter.c
+++ b/tools/serd-filter.c
@@ -274,17 +274,7 @@ main(int argc, char** argv)
   char  default_input[]  = "-";
   char* default_inputs[] = {default_input};
 
-  Options opts = {{"",
-                   NULL,
-                   4096U,
-                   1048576U,
-                   {SERD_SYNTAX_EMPTY, 0U, false},
-                   {SERD_NQUADS, 0U, false}},
-                  NULL,
-                  NULL,
-                  NULL,
-                  0U,
-                  false};
+  Options opts = {serd_default_options(), NULL, NULL, NULL, 0U, false};
 
   // Parse all command line options (which must precede inputs)
   SerdStatus st   = SERD_SUCCESS;