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Fix regex patterns in DeepSeekV31ToolParser to use non-greedy matching #23618

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Fix regex patterns in DeepSeekV31ToolParser to use non-greedy matching #23618

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Fix regex patterns in DeepSeekV31ToolParser to use non-greedy matching
eric8810 Aug 26, 2025
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4 changes: 2 additions & 2 deletions vllm/entrypoints/openai/tool_parsers/deepseekv31_tool_parser.py
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Original file line number Diff line number Diff line change
Expand Up @@ -39,11 +39,11 @@ def __init__(self, tokenizer: AnyTokenizer):
self.tool_call_end_token: str = "<｜tool▁call▁end｜>"

self.tool_call_regex = re.compile(
r"<｜tool▁call▁begin｜>(?P<function_name>.*)<｜tool▁sep｜>(?P<function_arguments>.*)<｜tool▁call▁end｜>"
r"<｜tool▁call▁begin｜>(?P<function_name>.*?)<｜tool▁sep｜>(?P<function_arguments>.*?)<｜tool▁call▁end｜>"
)

self.stream_tool_call_portion_regex = re.compile(
r"(?P<function_name>.*)<｜tool▁sep｜>(?P<function_arguments>.*)")
r"(?P<function_name>.*?)<｜tool▁sep｜>(?P<function_arguments>.*)")

self.stream_tool_call_name_regex = re.compile(
r"(?P<function_name>.*)<｜tool▁sep｜>")
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