Sync from v0.13

vllm/tool_parsers/longcat_tool_parser.py

@@ -0,0 +1,37 @@
+# SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+
+import regex as re
+
+from vllm.tokenizers import TokenizerLike
+from vllm.tool_parsers.hermes_tool_parser import Hermes2ProToolParser
+
+
+class LongcatFlashToolParser(Hermes2ProToolParser):
+    def __init__(self, tokenizer: TokenizerLike):
+        super().__init__(tokenizer)
+
+        self.tool_call_start_token: str = "<longcat_tool_call>"
+        self.tool_call_end_token: str = "</longcat_tool_call>"
+
+        self.tool_call_regex = re.compile(
+            r"<longcat_tool_call>(.*?)</longcat_tool_call>|<longcat_tool_call>(.*)",
+            re.DOTALL,
+        )
+
+        self.tool_call_start_token_ids = self.model_tokenizer.encode(
+            self.tool_call_start_token, add_special_tokens=False
+        )
+        self.tool_call_end_token_ids = self.model_tokenizer.encode(
+            self.tool_call_end_token, add_special_tokens=False
+        )
+
+        self.tool_call_start_token_array = [
+            self.model_tokenizer.decode([token_id])
+            for token_id in self.tool_call_start_token_ids
+        ]
+
+        self.tool_call_end_token_array = [
+            self.model_tokenizer.decode([token_id])
+            for token_id in self.tool_call_end_token_ids
+        ]