Add support for parsing variables

This adds a reader flag and serdi option for extending a syntax with support
for SPARQL-like variables, for storing things like patterns or simple queries.

1 files changed, 15 insertions, 12 deletions

diff --git a/test/test_overflow.c b/test/test_overflow.c
index 6d5c6d0c..335cd5c7 100644
--- a/test/test_overflow.c
+++ b/test/test_overflow.c
@@ -25,15 +25,16 @@ static const size_t min_stack_size = 4 * sizeof(size_t) + 256u;
 static const size_t max_stack_size = 1024u;
 
 static SerdStatus
-test_size(SerdWorld* const  world,
-          const char* const str,
-          const SerdSyntax  syntax,
-          const size_t      stack_size)
+test_size(SerdWorld* const      world,
+          const char* const     str,
+          const SerdSyntax      syntax,
+          const SerdReaderFlags flags,
+          const size_t          stack_size)
 {
   SerdSink*         sink        = serd_sink_new(NULL, NULL, NULL);
   SerdByteSource*   byte_source = serd_byte_source_new_string(str, NULL);
   SerdReader* const reader =
-    serd_reader_new(world, syntax, 0u, sink, stack_size);
+    serd_reader_new(world, syntax, flags, sink, stack_size);
 
   assert(reader);
 
@@ -47,17 +48,18 @@ test_size(SerdWorld* const  world,
 }
 
 static void
-test_all_sizes(SerdWorld* const  world,
-               const char* const str,
-               const SerdSyntax  syntax)
+test_all_sizes(SerdWorld* const      world,
+               const char* const     str,
+               const SerdSyntax      syntax,
+               const SerdReaderFlags flags)
 {
   // Ensure reading with the maximum stack size succeeds
-  SerdStatus st = test_size(world, str, syntax, max_stack_size);
+  SerdStatus st = test_size(world, str, syntax, flags, max_stack_size);
   assert(!st);
 
   // Test with an increasingly smaller stack
   for (size_t size = max_stack_size; size > min_stack_size; --size) {
-    if ((st = test_size(world, str, syntax, size))) {
+    if ((st = test_size(world, str, syntax, flags, size))) {
       assert(st == SERD_ERR_OVERFLOW);
     }
   }
@@ -76,7 +78,7 @@ test_ntriples_overflow(void)
   SerdWorld* const world = serd_world_new();
 
   for (const char* const* t = test_strings; *t; ++t) {
-    test_all_sizes(world, *t, SERD_NTRIPLES);
+    test_all_sizes(world, *t, SERD_NTRIPLES, 0u);
   }
 
   serd_world_free(world);
@@ -98,6 +100,7 @@ test_turtle_overflow(void)
     "<http://example.org/s> <http://example.org/p> _:blank .",
     "<http://example.org/s> <http://example.org/p> true .",
     "<http://example.org/s> <http://example.org/p> \"\"@en .",
+    "?subject ?predicate ?object .",
     "(((((((((42))))))))) <http://example.org/p> <http://example.org/o> .",
     "@prefix eg: <http://example.org/ns/test> .",
     "@base <http://example.org/base> .",
@@ -165,7 +168,7 @@ test_turtle_overflow(void)
   SerdWorld* const world = serd_world_new();
 
   for (const char* const* t = test_strings; *t; ++t) {
-    test_all_sizes(world, *t, SERD_TURTLE);
+    test_all_sizes(world, *t, SERD_TURTLE, SERD_READ_VARIABLES);
   }
 
   serd_world_free(world);