C++ (Cpp) EnvSetDefruleWatchFirings Examples

Example #1

File: rulepsr.c Project: Khenji55/Computacion_UCLM

globle int ParseDefrule(
  void *theEnv,
  const char *readSource)
  {
#if (! RUN_TIME) && (! BLOAD_ONLY)
   SYMBOL_HN *ruleName;
   struct lhsParseNode *theLHS;
   struct expr *actions;
   struct token theToken;
   struct defrule *topDisjunct, *tempPtr;
   struct defruleModule *theModuleItem;
   int error;

   /*================================================*/
   /* Flush the buffer which stores the pretty print */
   /* representation for a rule.  Add the already    */
   /* parsed keyword defrule to this buffer.         */
   /*================================================*/

   SetPPBufferStatus(theEnv,ON);
   FlushPPBuffer(theEnv);
   SavePPBuffer(theEnv,"(defrule ");

   /*=========================================================*/
   /* Rules cannot be loaded when a binary load is in effect. */
   /*=========================================================*/

#if BLOAD || BLOAD_ONLY || BLOAD_AND_BSAVE
   if ((Bloaded(theEnv) == TRUE) && (! ConstructData(theEnv)->CheckSyntaxMode))
     {
      CannotLoadWithBloadMessage(theEnv,"defrule");
      return(TRUE);
     }
#endif

   /*================================================*/
   /* Parse the name and comment fields of the rule, */
   /* deleting the rule if it already exists.        */
   /*================================================*/

#if DEBUGGING_FUNCTIONS
   DefruleData(theEnv)->DeletedRuleDebugFlags = 0;
#endif

   ruleName = GetConstructNameAndComment(theEnv,readSource,&theToken,"defrule",
                                         EnvFindDefruleInModule,EnvUndefrule,"*",FALSE,
                                         TRUE,TRUE,FALSE);

   if (ruleName == NULL) return(TRUE);

   /*============================*/
   /* Parse the LHS of the rule. */
   /*============================*/

   theLHS = ParseRuleLHS(theEnv,readSource,&theToken,ValueToString(ruleName),&error);
   if (error)
     {
      ReturnPackedExpression(theEnv,PatternData(theEnv)->SalienceExpression);
      PatternData(theEnv)->SalienceExpression = NULL;
      return(TRUE);
     }

   /*============================*/
   /* Parse the RHS of the rule. */
   /*============================*/

   ClearParsedBindNames(theEnv);
   ExpressionData(theEnv)->ReturnContext = TRUE;
   actions = ParseRuleRHS(theEnv,readSource);

   if (actions == NULL)
     {
      ReturnPackedExpression(theEnv,PatternData(theEnv)->SalienceExpression);
      PatternData(theEnv)->SalienceExpression = NULL;
      ReturnLHSParseNodes(theEnv,theLHS);
      return(TRUE);
     }

   /*=======================*/
   /* Process the rule LHS. */
   /*=======================*/

   topDisjunct = ProcessRuleLHS(theEnv,theLHS,actions,ruleName,&error);

   ReturnExpression(theEnv,actions);
   ClearParsedBindNames(theEnv);
   ReturnLHSParseNodes(theEnv,theLHS);

   if (error)
     {
      ReturnPackedExpression(theEnv,PatternData(theEnv)->SalienceExpression);
      PatternData(theEnv)->SalienceExpression = NULL;
      return(TRUE);
     }

   /*==============================================*/
   /* If we're only checking syntax, don't add the */
   /* successfully parsed defrule to the KB.       */
   /*==============================================*/

   if (ConstructData(theEnv)->CheckSyntaxMode)
     {
      ReturnPackedExpression(theEnv,PatternData(theEnv)->SalienceExpression);
      PatternData(theEnv)->SalienceExpression = NULL;
      return(FALSE);
     }

   PatternData(theEnv)->SalienceExpression = NULL;

   /*======================================*/
   /* Save the nice printout of the rules. */
   /*======================================*/

   SavePPBuffer(theEnv,"\n");
   if (EnvGetConserveMemory(theEnv) == TRUE)
     { topDisjunct->header.ppForm = NULL; }
   else
     { topDisjunct->header.ppForm = CopyPPBuffer(theEnv); }

   /*=======================================*/
   /* Store a pointer to the rule's module. */
   /*=======================================*/

   theModuleItem = (struct defruleModule *)
                   GetModuleItem(theEnv,NULL,FindModuleItem(theEnv,"defrule")->moduleIndex);

   for (tempPtr = topDisjunct; tempPtr != NULL; tempPtr = tempPtr->disjunct)
     { 
      tempPtr->header.whichModule = (struct defmoduleItemHeader *) theModuleItem; 
      tempPtr->header.ppForm = topDisjunct->header.ppForm;
     }

   /*===============================================*/
   /* Rule completely parsed. Add to list of rules. */
   /*===============================================*/

   AddToDefruleList(topDisjunct);

   /*========================================================================*/
   /* If a rule is redefined, then we want to restore its breakpoint status. */
   /*========================================================================*/

#if DEBUGGING_FUNCTIONS
   if (BitwiseTest(DefruleData(theEnv)->DeletedRuleDebugFlags,0))
     { EnvSetBreak(theEnv,topDisjunct); }
   if (BitwiseTest(DefruleData(theEnv)->DeletedRuleDebugFlags,1) || EnvGetWatchItem(theEnv,"activations"))
     { EnvSetDefruleWatchActivations(theEnv,ON,(void *) topDisjunct); }
   if (BitwiseTest(DefruleData(theEnv)->DeletedRuleDebugFlags,2) || EnvGetWatchItem(theEnv,"rules"))
     { EnvSetDefruleWatchFirings(theEnv,ON,(void *) topDisjunct); }
#endif

   /*================================*/
   /* Perform the incremental reset. */
   /*================================*/

   IncrementalReset(theEnv,topDisjunct);

   /*=============================================*/
   /* Return FALSE to indicate no errors occured. */
   /*=============================================*/

#endif
   return(FALSE);
  }

Example #2

File: rule.cpp Project: RenRenJuan/DACLIPS

void Rule::set_watch_firings( bool set )
{
  if ( m_cobj )
    EnvSetDefruleWatchFirings( m_environment.cobj(), set, m_cobj );
}