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 55901e26..a11abc70 100644
--- a/src/env.c
+++ b/src/env.c
@@ -355,6 +355,7 @@ 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);
     }
   }