NewbiZ

void split( const std::string& str, char delim, std::vector<std::string>& tokens )
{
  std::stringstream iss(str);
  std::string item;
  while ( std::getline(iss, item, delim) )
  {
    if ( !item.empty() )
      tokens.push_back(item);
  }
}

NewbiZ

void chop( std::string& str, const std::string& whitespaces=" \t\f\v\n\r" )
{
  size_t found = str.find_last_not_of( whitespaces );
  if ( found!=std::string::npos )
    str.erase( found+1 );
  else
    str.clear();
}

NewbiZ

$ ./target/rgbdbg
RGB debugger 0.0.1
Copyright (C) 2015 Aurelien Vallee
License MIT: http://opensource.org/licenses/MIT
(rgbdbg) h
Commands:
  help |h    List available commands
  file |f    Load Z80 executable binary
  next |n    Step execute the next instruction
  run  |r    Run the program until Cpu is stopped