237 void *visit(days_c *symbol) {

   237 /* SYM_REF5(interval_c, days, hours, minutes, seconds, milliseconds) */

   238   symbol->days->accept(*this);

   238 void *visit(interval_c *symbol) {

   239   s4o.print("d");

   239   if (NULL != symbol->days) {

   240   if (symbol->hours != NULL)

   240     symbol->days->accept(*this);

   241     s4o.print("d");

   242   }

   243 

   244   if (NULL != symbol->hours) {

   242   return NULL;

   246     s4o.print("h");

   243 }

   247   }

   244 

   248 

   245 void *visit(hours_c *symbol) {

   249   if (NULL != symbol->minutes) {

   246   symbol->hours->accept(*this);

   247   s4o.print("h");

   248   if (symbol->minutes != NULL)

   250   return NULL;

   251     s4o.print("m");

   251 }

   252   }

   252 

   253 

   253 void *visit(minutes_c *symbol) {

   254   if (NULL != symbol->seconds) {

   254   symbol->minutes->accept(*this);

   255   s4o.print("m");

   256   if (symbol->seconds != NULL)

   258   return NULL;

   256     s4o.print("s");

   259 }

   257   }

   260 

   258 

   261 void *visit(seconds_c *symbol) {

   259   if (NULL != symbol->milliseconds) {

   262   symbol->seconds->accept(*this);

   263   s4o.print("s");

   264   if (symbol->milliseconds != NULL)

   266   return NULL;

   261     s4o.print("ms");

   267 }

   262   }

   268 

   263 

   269 void *visit(milliseconds_c *symbol) {

   264   return NULL;

   270   symbol->milliseconds->accept(*this);

   265 }

   271   s4o.print("ms");

   266 

   272   return NULL;

   267 

   273 }