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#pragma once
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#include <string>
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#include <vector>
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#include <functional>
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/**
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* @brief 流式 TSV 解析器：按块喂数据，每解析出一整行就回调，只保留未完成尾块
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*/
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class StreamingTsvParser
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{
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public:
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/// lineIndex 0 = 表头行，之后为数据行；fields 为该行按 Tab 分割的字段（UTF-8）
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using LineCallback = std::function<void(int lineIndex, const std::vector<std::string>& fields)>;
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void SetCallback(LineCallback cb) { m_callback = std::move(cb); }
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/// 喂入一块数据，可能触发多次 OnLine 回调
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void Feed(const void* data, size_t size);
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/// 结束：处理缓冲区中剩余内容作为最后一行（若有）
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void End();
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private:
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void ProcessBuffer();
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std::string m_buffer;
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int m_lineIndex = 0;
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LineCallback m_callback;
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};
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