[Build] Update Xgrammar to 0.1.25 (#25467)

Signed-off-by: chaunceyjiang <chaunceyjiang@gmail.com>

requirements/common.txt

@@ -24,7 +24,7 @@ outlines_core == 0.2.11
 # required for outlines backend disk cache
 diskcache == 5.6.3
 lark == 1.2.2
-xgrammar == 0.1.24; platform_machine == "x86_64" or platform_machine == "aarch64" or platform_machine == "arm64"
+xgrammar == 0.1.25; platform_machine == "x86_64" or platform_machine == "aarch64" or platform_machine == "arm64"
 typing_extensions >= 4.10
 filelock >= 3.16.1 # need to contain https://github.com/tox-dev/filelock/pull/317
 partial-json-parser # used for parsing partial JSON outputs

vllm/v1/structured_output/backend_xgrammar.py

@@ -108,7 +108,9 @@ class XgrammarBackend(StructuredOutputBackend):
                     end=s["end"],
                 ) for s in s_tag["structures"]
             ]
-            ctx = self.compiler.compile_structural_tag(tags, s_tag["triggers"])
+            structural_tag = xgr.StructuralTag.from_legacy_structural_tag(
+                tags, s_tag["triggers"])
+            ctx = self.compiler.compile_structural_tag(structural_tag)
         else:
             logger.error(
                 "Validation should have already occurred. Please file an issue."
@@ -318,6 +320,8 @@ def validate_xgrammar_grammar(sampling_params: SamplingParams) -> None:
                     end=s["end"],
                 ) for s in s_tag["structures"]
             ]
-            xgr.Grammar.from_structural_tag(tags, s_tag["triggers"])
+            structural_tag = xgr.StructuralTag.from_legacy_structural_tag(
+                tags, s_tag["triggers"])
+            xgr.Grammar.from_structural_tag(structural_tag)
         except Exception as e:
             raise ValueError("Invalid structural tag specification.") from e