public static boolean isSaveRequiredBeforeLoad() {
   return SchemeScriptPlugin.getDefault().getPreferenceStore().getBoolean(SAVE_BEFORE_LOAD);
 }
 public void saveRules() {
   IPreferenceStore store = SchemeScriptPlugin.getDefault().getPreferenceStore();
   PreferenceUtil.setIndentationSchemes(store, IndentationPreferences.INDENT_SCHEMES, getRules());
 }
 public static boolean surroundCodeWithBegin() {
   return SchemeScriptPlugin.getDefault().getPreferenceStore().getBoolean(SURROUND_WITH_BEGIN);
 }