Method SolveAlias

source/intercoms/src/G4UImanager.cc:404–451

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// --------------------------------------------------------------------
G4String G4UImanager::SolveAlias(const char* aCmd)
{
  G4String aCommand = aCmd;
  std::size_t ia = aCommand.find('{');
  std::size_t iz = aCommand.find('#');
  while ((ia != std::string::npos) && ((iz == std::string::npos) || (ia < iz))) {
    G4int ibx = -1;
    while (ibx < 0) {
      std::size_t ib = aCommand.find('}');
      if (ib == std::string::npos) {
        G4cerr << aCommand << G4endl;
        for (std::size_t i = 0; i < ia; ++i) {
          G4cerr << " ";
        }
        G4cerr << "^" << G4endl;
        G4cerr << "Unmatched alias parenthesis -- command ignored" << G4endl;
        G4String nullStr;
        return nullStr;
      }
      G4String ps = aCommand.substr(ia + 1, aCommand.length() - (ia + 1));
      std::size_t ic = ps.find('{');
      std::size_t id = ps.find('}');
      if (ic != std::string::npos && ic < id) {
        ia += ic + 1;
      }
      else {
        ibx = (G4int)ib;
      }
    }
    //--- Here ia represents the position of innermost "{"
    //--- and ibx represents corresponding "}"
    G4String subs;
    if (ia > 0) {
      subs = aCommand.substr(0, ia);
    }
    G4String alis = aCommand.substr(ia + 1, ibx - ia - 1);
    G4String rems = aCommand.substr(ibx + 1, aCommand.length() - ibx);
    const G4String* alVal = aliasList->FindAlias(alis);
    if (alVal == nullptr) {
      G4cerr << "Alias <" << alis << "> not found -- command ignored" << G4endl;
      G4String nullStr;
      return nullStr;
    }
    aCommand = subs + (*alVal) + rems;
    ia = aCommand.find('{');
  }
  return aCommand;
}

// --------------------------------------------------------------------
G4int G4UImanager::ApplyCommand(const G4String& aCmd)