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/*******************************************************/
/* "C" Language Integrated Production System */
/* */
/* CLIPS Version 6.40 08/25/16 */
/* */
/* DEFGLOBAL COMMANDS MODULE */
/*******************************************************/
/*************************************************************/
/* Purpose: Provides the show-defglobals, set-reset-globals, */
/* and get-reset-globals commands. */
/* */
/* Principal Programmer(s): */
/* Gary D. Riley */
/* */
/* Contributing Programmer(s): */
/* */
/* Revision History: */
/* */
/* 6.23: Correction for FalseSymbol/TrueSymbol. DR0859 */
/* */
/* 6.24: Renamed BOOLEAN macro type to intBool. */
/* */
/* 6.30: Removed conditional code for unsupported */
/* compilers/operating systems (IBM_MCW and */
/* MAC_MCW). */
/* */
/* Added const qualifiers to remove C++ */
/* deprecation warnings. */
/* */
/* Converted API macros to function calls. */
/* */
/* 6.40: Pragma once and other inclusion changes. */
/* */
/* Added support for booleans with <stdbool.h>. */
/* */
/* Removed use of void pointers for specific */
/* data structures. */
/* */
/* ALLOW_ENVIRONMENT_GLOBALS no longer supported. */
/* */
/* UDF redesign. */
/* */
/*************************************************************/
#include "setup.h"
#if DEFGLOBAL_CONSTRUCT
#include "argacces.h"
#include "envrnmnt.h"
#include "extnfunc.h"
#include "globldef.h"
#include "prntutil.h"
#include "router.h"
#include "globlcom.h"
/***************************************/
/* LOCAL INTERNAL FUNCTION DEFINITIONS */
/***************************************/
#if DEBUGGING_FUNCTIONS
static void PrintDefglobalValueForm(Environment *,const char *,Defglobal *);
#endif
/************************************************************/
/* DefglobalCommandDefinitions: Defines defglobal commands. */
/************************************************************/
void DefglobalCommandDefinitions(
Environment *theEnv)
{
#if ! RUN_TIME
AddUDF(theEnv,"set-reset-globals","b",1,1,NULL,SetResetGlobalsCommand,"SetResetGlobalsCommand",NULL);
AddUDF(theEnv,"get-reset-globals","b",0,0,NULL,GetResetGlobalsCommand,"GetResetGlobalsCommand",NULL);
#if DEBUGGING_FUNCTIONS
AddUDF(theEnv,"show-defglobals","v",0,1,"y",ShowDefglobalsCommand,"ShowDefglobalsCommand",NULL);
#endif
#else
#if MAC_XCD
#pragma unused(theEnv)
#endif
#endif
}
/************************************************/
/* SetResetGlobalsCommand: H/L access routine */
/* for the get-reset-globals command. */
/************************************************/
void SetResetGlobalsCommand(
Environment *theEnv,
UDFContext *context,
UDFValue *returnValue)
{
bool oldValue;
UDFValue theArg;
/*===========================================*/
/* Remember the old value of this attribute. */
/*===========================================*/
oldValue = GetResetGlobals(theEnv);
/*===========================================*/
/* Determine the new value of the attribute. */
/*===========================================*/
if (! UDFFirstArgument(context,ANY_TYPE_BITS,&theArg))
{ return; }
if (theArg.value == FalseSymbol(theEnv))
{ SetResetGlobals(theEnv,false); }
else
{ SetResetGlobals(theEnv,true); }
/*========================================*/
/* Return the old value of the attribute. */
/*========================================*/
returnValue->lexemeValue = CreateBoolean(theEnv,oldValue);
}
/****************************************/
/* SetResetGlobals: C access routine */
/* for the set-reset-globals command. */
/****************************************/
bool SetResetGlobals(
Environment *theEnv,
bool value)
{
bool ov;
ov = DefglobalData(theEnv)->ResetGlobals;
DefglobalData(theEnv)->ResetGlobals = value;
return(ov);
}
/************************************************/
/* GetResetGlobalsCommand: H/L access routine */
/* for the get-reset-globals command. */
/************************************************/
void GetResetGlobalsCommand(
Environment *theEnv,
UDFContext *context,
UDFValue *returnValue)
{
returnValue->lexemeValue = CreateBoolean(theEnv,GetResetGlobals(theEnv));
}
/****************************************/
/* GetResetGlobals: C access routine */
/* for the get-reset-globals command. */
/****************************************/
bool GetResetGlobals(
Environment *theEnv)
{
return(DefglobalData(theEnv)->ResetGlobals);
}
#if DEBUGGING_FUNCTIONS
/***********************************************/
/* ShowDefglobalsCommand: H/L access routine */
/* for the show-defglobals command. */
/***********************************************/
void ShowDefglobalsCommand(
Environment *theEnv,
UDFContext *context,
UDFValue *returnValue)
{
Defmodule *theModule;
unsigned int numArgs;
bool error;
numArgs = UDFArgumentCount(context);
if (numArgs == 1)
{
theModule = GetModuleName(context,1,&error);
if (error) return;
}
else
{ theModule = GetCurrentModule(theEnv); }
ShowDefglobals(theEnv,STDOUT,theModule);
}
/**************************************/
/* ShowDefglobals: C access routine */
/* for the show-defglobals command. */
/**************************************/
void ShowDefglobals(
Environment *theEnv,
const char *logicalName,
Defmodule *theModule)
{
ConstructHeader *constructPtr;
bool allModules = false;
struct defmoduleItemHeader *theModuleItem;
/*=======================================*/
/* If the module specified is NULL, then */
/* list all constructs in all modules. */
/*=======================================*/
if (theModule == NULL)
{
theModule = GetNextDefmodule(theEnv,NULL);
allModules = true;
}
/*======================================================*/
/* Print out the constructs in the specified module(s). */
/*======================================================*/
for (;
theModule != NULL;
theModule = GetNextDefmodule(theEnv,theModule))
{
/*===========================================*/
/* Print the module name before every group */
/* of defglobals listed if we're listing the */
/* defglobals from every module. */
/*===========================================*/
if (allModules)
{
WriteString(theEnv,logicalName,DefmoduleName(theModule));
WriteString(theEnv,logicalName,":\n");
}
/*=====================================*/
/* Print every defglobal in the module */
/* currently being examined. */
/*=====================================*/
theModuleItem = (struct defmoduleItemHeader *) GetModuleItem(theEnv,theModule,DefglobalData(theEnv)->DefglobalModuleIndex);
for (constructPtr = theModuleItem->firstItem;
constructPtr != NULL;
constructPtr = constructPtr->next)
{
if (EvaluationData(theEnv)->HaltExecution == true) return;
if (allModules) WriteString(theEnv,logicalName," ");
PrintDefglobalValueForm(theEnv,logicalName,(Defglobal *) constructPtr);
WriteString(theEnv,logicalName,"\n");
}
/*===================================*/
/* If we're only listing the globals */
/* for one module, then return. */
/*===================================*/
if (! allModules) return;
}
}
/*****************************************************/
/* PrintDefglobalValueForm: Prints the value form of */
/* a defglobal (the current value). For example, */
/* ?*x* = 3 */
/*****************************************************/
static void PrintDefglobalValueForm(
Environment *theEnv,
const char *logicalName,
Defglobal *theGlobal)
{
WriteString(theEnv,logicalName,"?*");
WriteString(theEnv,logicalName,theGlobal->header.name->contents);
WriteString(theEnv,logicalName,"* = ");
WriteCLIPSValue(theEnv,logicalName,&theGlobal->current);
}
#endif /* DEBUGGING_FUNCTIONS */
#endif /* DEFGLOBAL_CONSTRUCT */