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, 1 insertions, 0 deletions

diff --git a/src/env.c b/src/env.c
index 5cbb6a43..3abbc857 100644
--- a/src/env.c
+++ b/src/env.c
@@ -371,6 +371,7 @@ serd_env_expand(const SerdEnv* env, const SerdNode* node)
 		case SERD_CURIE:
 			return expand_curie(env, node);
 		case SERD_BLANK:
+		case SERD_VARIABLE:
 			return serd_node_copy(node);
 		}
 	}