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, 2 insertions, 1 deletions

diff --git a/src/node.c b/src/node.c
index b33a03e9..66964556 100644
--- a/src/node.c
+++ b/src/node.c
@@ -156,7 +156,8 @@ serd_new_simple_node(SerdNodeType type, const char* str, const size_t len)
 {
 	if (!str) {
 		return NULL;
-	} else if (type != SERD_BLANK && type != SERD_CURIE && type != SERD_URI) {
+	} else if (type != SERD_BLANK && type != SERD_CURIE && type != SERD_URI &&
+	           type != SERD_VARIABLE) {
 		return NULL;
 	}