Exec::RetType Exec_ParmStrip::Execute(CpptrajState& State, ArgList& argIn) {
Topology* parm = State.DSL().GetTopByIndex( argIn );
if (parm == 0) return CpptrajState::ERR;
// Check if this topology has already been used to set up an input
// trajectory, as this will break the traj read.
bool topology_in_use = false;
const char* fname = 0;
for (TrajinList::trajin_it tIn = State.InputTrajList().trajin_begin();
tIn != State.InputTrajList().trajin_end(); ++tIn)
if ( (*tIn)->Traj().Parm() == parm ) {
topology_in_use = true;
fname = (*tIn)->Traj().Filename().full();
break;
}
if (!topology_in_use) {
for (TrajinList::ensemble_it eIn = State.InputTrajList().ensemble_begin();
eIn != State.InputTrajList().ensemble_end(); ++eIn)
if ( (*eIn)->Traj().Parm() == parm ) {
topology_in_use = true;
fname = (*eIn)->Traj().Filename().full();
break;
}
}
if (topology_in_use) {
mprinterr("Error: Topology '%s' has already been used to set up trajectory '%s'.\n"
"Error: To strip this topology use the 'strip' action.\n",
parm->c_str(), fname);
return CpptrajState::ERR;
}
AtomMask tempMask( argIn.GetMaskNext() );
// Since want to keep atoms outside mask, invert selection
tempMask.InvertMaskExpression();
if (parm->SetupIntegerMask( tempMask )) return CpptrajState::ERR;
mprintf("\tStripping atoms in mask [%s] (%i) from %s\n",tempMask.MaskString(),
parm->Natom() - tempMask.Nselected(), parm->c_str());
Topology* tempParm = parm->modifyStateByMask(tempMask);
if (tempParm==0) {
mprinterr("Error: %s: Could not strip parm.\n", argIn.Command());
return CpptrajState::ERR;
} else {
// Replace parm with stripped version
*parm = *tempParm;
parm->Brief("Stripped parm:");
delete tempParm;
}
return CpptrajState::OK;
}
