From 9910494d7bb417fb75f1c99b65f9956d14184059 Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Mon, 3 Apr 2023 10:47:40 -0400
Subject: Gracefully handle boolean subject and predicate errors

---
 src/n3.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src')

diff --git a/src/n3.c b/src/n3.c
index 38505ee2..56b4a625 100644
--- a/src/n3.c
+++ b/src/n3.c
@@ -1644,6 +1644,9 @@ read_n3_statement(SerdReader* const reader)
       pop_node(reader, ctx.graph);
       ctx.graph = 0;
       read_ws_star(reader);
+    } else if (!tokcmp(reader, ctx.subject, "true", 4) ||
+               !tokcmp(reader, ctx.subject, "false", 5)) {
+      return r_err(reader, SERD_ERR_BAD_SYNTAX, "expected subject\n");
     } else if (read_ws_star(reader) && peek_byte(reader) == '{') {
       if (s_type == '(' || (s_type == '[' && !*ctx.flags)) {
         return r_err(reader, SERD_ERR_BAD_SYNTAX, "invalid graph name\n");
-- 
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