63 lines
1.5 KiB
C++
63 lines
1.5 KiB
C++
#pragma once
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#include<hgl/io/FileInputStream.h>
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#include<hgl/io/TextInputStream.h>
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#include<hgl/util/csv/CSVFieldSplite.h>
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namespace hgl
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{
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namespace util
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{
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template<typename T> class CSVParseCallback
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{
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public:
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virtual bool OnLine(util::CSVFieldSplite<T> &csv)=0;
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};
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template<typename T> class CSVTextParse:public io::TextInputStream::ParseCallback<T>
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{
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util::CSVFieldSplite<T> splite;
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CSVParseCallback<T> *callback;
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public:
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CSVTextParse(CSVParseCallback<T> *pcb)
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{
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callback=pcb;
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}
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bool OnLine(T *text,const int length) override
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{
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if(!text||!*text||length<=0)
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return(true);
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splite.Start(text,length);
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return callback->OnLine(splite);
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}
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};//class CSVTextParse
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template<typename T> inline bool ParseCSV(io::InputStream *is,CSVParseCallback<T> *pcb)
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{
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io::TextInputStream tis(is);
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CSVTextParse<T> parse(pcb);
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tis.SetParseCallback<T>(&parse);
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return tis.Run()>0;
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}
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template<typename T> inline bool ParseCSVFile(const OSString &filename,CSVParseCallback<T> *pcb)
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{
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io::OpenFileInputStream fis(filename);
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if(!fis)
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return false;
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return ParseCSV<T>(fis,pcb);
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}
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}//namespace util
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}//namespace hgl
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