gistfile1.txt

%start PubSubRefresh::Idle
%class PubSubRefresh
%header PubSubRefresh.h

%map PubSubRefreshMap
%%

Idle
{
    Start 
      [startRefresh() == NO]
        nil { showErrorUI(); }
    Start
        push(Refreshing)  { }      

    ErrorHappened nil { showErrorUI(); }
}

Refreshing
Entry 
{
    showRefreshingProgress();
}
Exit
{
    dismissRefreshProgress();
    cleanupRefreshJunk();
}
{
    ErrorHappened pop()/ErrorHappened {}
    Success pop() {}
}