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fix: use non-greedy regex in DeepSeek V3 parser for multi-tool calls (#1300)

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The greedy `.*` captures with `re.DOTALL` cause `findall()` to merge
multiple tool calls into a single match — silently dropping all but the
last tool call. Switching to `.*?` (non-greedy) fixes extraction when
models return multiple tool calls in one response.

Adds test coverage for the DeepSeek V3 parser including a multi-tool
call regression test.

Co-authored-by: Himess <semihcvlk53@gmail.com>
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Teknium 2026-03-14 06:19:28 -07:00 • committed by GitHub
parent a0f0f4fe52
commit 2ff03ebafe
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2 changed files with 53 additions and 1 deletions
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environments/tool_call_parsers/deepseek_v3_parser.py
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@ -38,7 +38,7 @@ class DeepSeekV3ToolCallParser(ToolCallParser):
# Regex captures: type, function_name, function_arguments
PATTERN = re.compile(
r"<｜tool▁call▁begin｜>(?P<type>.*)<｜tool▁sep｜>(?P<function_name>.*)\n```json\n(?P<function_arguments>.*)\n```<｜tool▁call▁end｜>",
r"<｜tool▁call▁begin｜>(?P<type>.*?)<｜tool▁sep｜>(?P<function_name>.*?)\n```json\n(?P<function_arguments>.*?)\n```<｜tool▁call▁end｜>",
re.DOTALL,
)