extractEvt.cpp File Reference

#include "merge/extractEvt.C"
#include <cstdlib>
#include <stdexcept>

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Functions
int	main (int argc, char **argv)

Function Documentation

int main	(	int	argc,
		char **	argv
	)

Definition at line 16 of file extractEvt.cpp.

                                  {
  string input;
  string output;
  int    evt_num = -1;
  for ( int i = 1; i < argc; ++i ) {
    if ( *argv[i] == '-' ) {
      switch ( ::toupper( *( argv[i] + 1 ) ) ) {
      case 'E':
        if ( 1 != ::sscanf( argv[i + 1], "%d", &evt_num ) ) {
          ::printf( "\nERROR: No valid event identifier given.\n\n" );
          return usage();
        }
        ++i;
        break;
      case 'O':
        if ( i + 1 < argc ) output = argv[i + 1];
        ++i;
        break;
      case 'I':
        if ( i + 1 < argc ) input = argv[i + 1];
        ++i;
        break;
      default:
        return usage();
      }
    }
  }
  if ( input.empty() ) {
    ::printf( "\nERROR: No input file(s) supplied\n\n" );
    return usage();
  } else if ( output.empty() ) {
    ::printf( "\nERROR: No output file supplied.\n\n" );
    return usage();
  } else if ( evt_num < 0 ) {
    ::printf( "\nERROR: No valid event identifier given.\n\n" );
    return usage();
  }
  gROOT->SetBatch( kTRUE );
  try {
    if ( extract_event( input.c_str(), output.c_str(), evt_num ) != EXTRACT_SUCCESS ) {
      ::printf( "\nERROR: Event extraction from file %s failed.\n", input.c_str() );
      return 1;
    }
    return 0;
  } catch ( const std::exception& e ) {
    ::printf( "\nERROR: Event extraction from file %s failed [%s]\n", input.c_str(), e.what() );
  } catch ( ... ) { ::printf( "\nERROR: Event extraction from file %s failed [unknown reason]\n", input.c_str() ); }
  return 1;
}