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fix: KimiK2Detector Improve tool call ID parsing with regex (#10972)

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This commit is contained in:
Xinyuan Tong
2025-09-30 17:44:44 -07:00
committed by GitHub
parent 84a9f5d660
commit 1193f13181
1 changed files with 17 additions and 4 deletions
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21
python/sglang/srt/function_call/kimik2_detector.py
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@@ -50,6 +50,11 @@ class KimiK2Detector(BaseFormatDetector):
self._last_arguments = ""
# Robust parser for ids like "functions.search:0" or fallback "search:0"
self.tool_call_id_regex = re.compile(
r"^(?:functions\.)?(?P<name>[\w\.]+):(?P<index>\d+)$"
)
def has_tool_call(self, text: str) -> bool:
"""Check if the text contains a KimiK2 format tool call."""
return self.bot_token in text
@@ -76,14 +81,18 @@ class KimiK2Detector(BaseFormatDetector):
tool_calls = []
for match in function_call_tuples:
function_id, function_args = match
function_name = function_id.split(".")[1].split(":")[0]
function_idx = int(function_id.split(".")[1].split(":")[1])
m = self.tool_call_id_regex.match(function_id)
if not m:
logger.warning("Unexpected tool_call_id format: %s", function_id)
continue
function_name = m.group("name")
function_idx = int(m.group("index"))
logger.info(f"function_name {function_name}")
tool_calls.append(
ToolCallItem(
tool_index=function_idx, # Use the call index in the response, not tool position
tool_index=function_idx,
name=function_name,
parameters=function_args,
)
@@ -128,7 +137,11 @@ class KimiK2Detector(BaseFormatDetector):
function_id = match.group("tool_call_id")
function_args = match.group("function_arguments")
function_name = function_id.split(".")[1].split(":")[0]
m = self.tool_call_id_regex.match(function_id)
if not m:
logger.warning("Unexpected tool_call_id format: %s", function_id)
return StreamingParseResult(normal_text="", calls=calls)
function_name = m.group("name")
# Initialize state if this is the first tool call
if self.current_tool_id == -1: