Remove Text Before Marker From File
#include <fstream> //Used for EventsToSendQueue
#include <unistd.h> //Used for EventsToSendQueue
string next_line;
size_t find_result;
bool found_marker = false;
string EventsFilePath_Temp;
string s_temp;
EventsFilePath_Temp = EventsFilePath + ".temp";
//----- OPEN THE FILES -----
std::ifstream ifstream1(EventsFilePath.c_str());
std::ofstream ofstream1(EventsFilePath_Temp.c_str(), std::ios_base::out); //Overwrite an existing file if present
if ( (ifstream1.is_open()) && (ofstream1.is_open()) )
{
while (getline(ifstream1, next_line))
{
//----- GET NEXT LINE -----
if (found_marker)
{
ofstream1 << next_line << "\n"; //The "\n" is stripped by getline()
}
if ((find_result = next_line.find("[EVENT_END_YqzlQ2W4GOrkWr4qH]")) != string::npos)
{
//----- MARKER FOUND -----
found_marker = true;
s_temp = next_line.substr((find_result + 29));
if (s_temp.length() > 0)
ofstream1 << s_temp << "\n"; //The "\n" is stripped by getline()
}
}
//----- CLOSE THE FILES -----
ifstream1.close();
ofstream1.close();
//----- OVERWRITE THE OLD FILE WITH THE NEW FILE -----
unlink(EventsFilePath.c_str());
rename(EventsFilePath_Temp.c_str(), EventsFilePath.c_str());
}
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