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# pragma once
# include <string>
# include <vector>
# include <functional>
/**
* @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
*/
class StreamingTsvParser
{
public :
/// lineIndex 0 = 表头行， ； （ ）
using LineCallback = std : : function < void ( int lineIndex , const std : : vector < std : : string > & fields ) > ;
void SetCallback ( LineCallback cb ) { m_callback = std : : move ( cb ) ; }
/// 喂入一块数据，可能触发多次 OnLine 回调
void Feed ( const void * data , size_t size ) ;
/// 结束：处理缓冲区中剩余内容作为最后一行（若有）
void End ( ) ;
private :
void ProcessBuffer ( ) ;
std : : string m_buffer ;
int m_lineIndex = 0 ;
LineCallback m_callback ;
} ;