feat(kernel): add SentenceBuffer for streaming text chunking (#1205)#1210
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feat(kernel): add SentenceBuffer for streaming text chunking (#1205)#1210
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Pure text segmentation utility that accumulates TextDelta chunks and emits complete sentences split on sentence-ending punctuation (。！？.!?\n). No async, no I/O — designed to sit between an LLM streaming output and a TTS synthesizer. Handles Chinese/English mixed text, consecutive delimiters, incremental deltas, and trailing unterminated text via flush(). 9 unit tests covering all edge cases. Closes #1205
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Summary
Add
SentenceBuffer— a pure text segmentation utility that accumulates streamingTextDeltachunks and emits complete sentences on sentence-ending punctuation (。！？.!?\n).No async, no I/O, no TTS dependency. Designed to sit between an LLM streaming output and a TTS synthesizer for sentence-by-sentence voice reply (#1206).
?!→ one sentence)flush()drains unterminated text at turn endType of change
enhancementComponent
coreCloses
Closes #1205
Test plan
cargo test -p rara-kernel --lib sentence_buffer— 9/9 pass