grammar : handle maxItems == 0 in JSON schema (#13117)

Co-authored-by: Richard Lyons <frob@cloudstaff.com>
2025-04-26 10:10:20 +02:00 · 2025-04-26 10:10:20 +02:00 · d5fe4e81bd
commit d5fe4e81bd
parent 295354ea68
4 changed files with 25 additions and 0 deletions
--- a/tests/test-json-schema-to-grammar.cpp
+++ b/tests/test-json-schema-to-grammar.cpp
@ -597,6 +597,22 @@ static void test_all(const std::string & lang, std::function<void(const TestCase
        )"""
    });

+    test({
+        SUCCESS,
+        "maxItems 0",
+        R"""({
+            "items": {
+                "type": "boolean"
+            },
+            "maxItems": 0
+        })""",
+        R"""(
+            boolean ::= ("true" | "false") space
+            root ::= "[" space  "]" space
+            space ::= | " " | "\n"{1,2} [ \t]{0,20}
+        )"""
+    });
+
    test({
        SUCCESS,
        "maxItems 1",