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Allow zero chunk overlap in recursive chunker #4258

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Merged
Soulter merged 2 commits into from
Dec 30, 2025
Merged

Allow zero chunk overlap in recursive chunker #4258

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6a192c5
Allow zero chunk overlap
Soulter Dec 30, 2025
fa4d35b
Validate recursive chunking bounds
Soulter Dec 30, 2025
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12 changes: 10 additions & 2 deletions astrbot/core/knowledge_base/chunking/recursive.py
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Original file line number Diff line number Diff line change
Expand Up @@ -149,8 +149,16 @@ def _split_by_character(
分割后的文本块列表

"""
chunk_size = chunk_size or self.chunk_size
overlap = overlap or self.chunk_overlap
if chunk_size is None:
chunk_size = self.chunk_size
if overlap is None:
overlap = self.chunk_overlap
if chunk_size <= 0:
raise ValueError("chunk_size must be greater than 0")
if overlap < 0:
raise ValueError("chunk_overlap must be non-negative")
if overlap >= chunk_size:
raise ValueError("chunk_overlap must be less than chunk_size")
result = []
for i in range(0, len(text), chunk_size - overlap):
end = min(i + chunk_size, len(text))
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