Feat: upgrade outlines & support compatibility with the old version (#2292)

python/sglang/srt/constrained/outlines_backend.py

@@ -152,7 +152,12 @@ class OutlinesGrammarBackend(BaseGrammarBackend):
             raise ValueError(f"Invalid key_type: {key_type}")
 
         try:
-            guide = RegexGuide(regex, self.outlines_tokenizer)
+            if hasattr(RegexGuide, "from_regex"):
+                # outlines >= 0.1.1
+                guide = RegexGuide.from_regex(regex, self.outlines_tokenizer)
+            else:
+                # outlines <= 0.0.46
+                guide = RegexGuide(regex, self.outlines_tokenizer)
         except interegular.patterns.InvalidSyntax as e:
             logger.warning(f"skip invalid regex schema: {regex=}, {e=}")
             return None

python/sglang/srt/constrained/outlines_jump_forward.py

@@ -23,7 +23,14 @@ from collections import defaultdict
 import interegular
 from interegular import InvalidSyntax
 from outlines.caching import cache as disk_cache
-from outlines.fsm.regex import FSMInfo, make_byte_level_fsm, make_deterministic_fsm
+
+try:
+    # outlines >= 0.1.0
+    from outlines_core.fsm.outlines_core_rs import FSMInfo
+    from outlines_core.fsm.regex import make_byte_level_fsm, make_deterministic_fsm
+except ImportError:
+    # outlines <= 0.0.46
+    from outlines.fsm.regex import FSMInfo, make_byte_level_fsm, make_deterministic_fsm
 
 IP_REGEX = r"((25[0-5]|2[0-4]\d|[01]?\d\d?)\.){3}(25[0-5]|2[0-4]\d|[01]?\d\d?)"