Fix grammar backend (#2018)

python/sglang/srt/server_args.py

@@ -111,7 +111,7 @@ class ServerArgs:
     disable_flashinfer: bool = False
     disable_flashinfer_sampling: bool = False
     disable_radix_cache: bool = False
-    disable_regex_jump_forward: bool = False
+    disable_jump_forward: bool = False
     disable_cuda_graph: bool = False
     disable_cuda_graph_padding: bool = False
     disable_disk_cache: bool = False
@@ -574,7 +574,7 @@ class ServerArgs:
             type=str,
             choices=["xgrammar", "outlines"],
             default=ServerArgs.grammar_backend,
-            help="Choose the backend for constrained decoding.",
+            help="Choose the backend for grammar-guided decoding.",
         )
 
         # Optimization/debug options
@@ -594,9 +594,9 @@ class ServerArgs:
             help="Disable RadixAttention for prefix caching.",
         )
         parser.add_argument(
-            "--disable-regex-jump-forward",
+            "--disable-jump-forward",
             action="store_true",
-            help="Disable regex jump-forward.",
+            help="Disable jump-forward for grammar-guided decoding.",
         )
         parser.add_argument(
             "--disable-cuda-graph",
@@ -616,7 +616,6 @@ class ServerArgs:
         parser.add_argument(
             "--disable-custom-all-reduce",
             action="store_true",
-            default=False,
             help="Disable the custom all-reduce kernel and fall back to NCCL.",
         )
         parser.add_argument(
@@ -688,7 +687,6 @@ class ServerArgs:
         )
         parser.add_argument(
             "--delete-ckpt-after-loading",
-            default=ServerArgs.delete_ckpt_after_loading,
             action="store_true",
             help="Delete the model checkpoint after loading the model.",
         )