[V1] Add disable-any-whitespace option support for xgrammar (#15316)

Signed-off-by: Russell Bryant <rbryant@redhat.com>
2025-03-22 11:56:17 -04:00
parent 2f4bd358f1
commit eb63ea1e18
4 changed files with 53 additions and 5 deletions
--- a/vllm/engine/arg_utils.py
+++ b/vllm/engine/arg_utils.py
@@ -1486,7 +1486,9 @@ class EngineArgs:
            return False

        # Only support Xgrammar for guided decoding so far.
-        SUPPORTED_GUIDED_DECODING = ["xgrammar", "xgrammar:nofallback"]
+        SUPPORTED_GUIDED_DECODING = [
+            "xgrammar", "xgrammar:disable-any-whitespace"
+        ]
        if self.guided_decoding_backend not in SUPPORTED_GUIDED_DECODING:
            _raise_or_fallback(feature_name="--guided-decoding-backend",
                               recommend_to_remove=False)