Improve: Support xgrammar 0.1.14 (#3593)

python/pyproject.toml

@@ -35,7 +35,7 @@ runtime_common = [
     "torchao>=0.7.0",
     "uvicorn",
     "uvloop",
-    "xgrammar==0.1.10",
+    "xgrammar==0.1.14",
     "ninja",
     "transformers==4.48.3",
     "llguidance>=0.6.15"

python/sglang/srt/constrained/xgrammar_backend.py

@@ -19,7 +19,6 @@ from typing import List, Tuple
 import torch
 from xgrammar import (
     CompiledGrammar,
-    Grammar,
     GrammarCompiler,
     GrammarMatcher,
     TokenizerInfo,
@@ -135,9 +134,7 @@ class XGrammarGrammarBackend(BaseGrammarBackend):
                 return None
         elif key_type == "regex":
             try:
-                ctx = self.grammar_compiler.compile_grammar(
-                    Grammar.from_regex(key_string)
-                )
+                ctx = self.grammar_compiler.compile_regex(key_string)
             except RuntimeError as e:
                 logging.warning(f"Skip invalid regex: regex={key_string}, {e=}")
                 return None