User interface > Debugging and executing > Enabling actions
The c++-interpreter can be disabled, to test only the analysis of the input. If however the text shall be transformed, this code must be executed. So you have to enable the actions.
Enabling and disabling the semantic actions can be done either by the menu: Start->Action, or by the checkbox in the toolbar.
actions enabled
actions disabled
If the parser uses semantic actions in IF-structures or WHILE-structures, the actions must be left enabled, because the project would not compile without them.