70 lines
1.4 KiB
C++
70 lines
1.4 KiB
C++
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#include<string>
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#include<sstream>
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#include<iostream>
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#include<json/json.h>
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#include<hgl/filesystem/FileSystem.h>
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using namespace std;
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const std::string JsonToString(const Json::Value &jv_root)
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{
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Json::StreamWriterBuilder builder;
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Json::StreamWriter *writer=builder.newStreamWriter();
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JSONCPP_OSTRINGSTREAM result;
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writer->write(jv_root,&result);
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delete writer;
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return std::string(result.str());
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}
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bool ParseJson(Json::Value &root,const char *txt,const int size,std::string *error_info)
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{
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Json::CharReaderBuilder builder;
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Json::CharReader *reader=builder.newCharReader();
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const bool result=reader->parse(txt,txt+size,&root,error_info);
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delete reader;
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return result;
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}
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bool LoadJson(Json::Value &root,const os_char *filename)
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{
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char *txt;
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int size;
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size=hgl::filesystem::LoadFileToMemory(filename,(void **)&txt);
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if(size<=0)
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{
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std::cerr<<"load json file failed,filename: "<<filename<<std::endl;
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return(false);
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}
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bool result;
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std::string error_info;
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result=ParseJson(root,txt,size,&error_info);
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delete[] txt;
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if(!result)
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{
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std::cerr<<"parse json file failed,filename: "<<filename<<std::endl;
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return(false);
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}
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return(true);
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}
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bool SaveJson(const Json::Value &root,const os_char *filename)
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{
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const std::string txt=JsonToString(root);
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return hgl::filesystem::SaveMemoryToFile(filename,txt.c_str(),txt.size());
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}
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