public boolean addCommand(String commandName, Command command, boolean overwrite) {
if (overwrite || !commands.contains(commandName)) {
commands.add(commandName, command);
return true;
}
return false;
}
public CommandLineMode(EditorAdaptor editorAdaptor) {
super(editorAdaptor);
commands = new EvaluatorMapping();
commands.addAll(coreCommands);
}