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/*******************************************************/
/* "C" Language Integrated Production System */
/* */
/* CLIPS Version 6.40 10/24/17 */
/* */
/* FILE COMMANDS MODULE */
/*******************************************************/
/*************************************************************/
/* Purpose: Contains the code for file commands including */
/* batch, dribble-on, dribble-off, save, load, bsave, and */
/* bload. */
/* */
/* Principal Programmer(s): */
/* Gary D. Riley */
/* Brian L. Dantes */
/* */
/* Contributing Programmer(s): */
/* Bebe Ly */
/* */
/* Revision History: */
/* */
/* 6.24: Added environment parameter to GenClose. */
/* Added environment parameter to GenOpen. */
/* */
/* Renamed BOOLEAN macro type to intBool. */
/* */
/* 6.30: Removed conditional code for unsupported */
/* compilers/operating systems (IBM_MCW, */
/* MAC_MCW, and IBM_TBC). */
/* */
/* Added code for capturing errors/warnings. */
/* */
/* Added AwaitingInput flag. */
/* */
/* Added const qualifiers to remove C++ */
/* deprecation warnings. */
/* */
/* Converted API macros to function calls. */
/* */
/* Fixed linkage issue when BLOAD_ONLY compiler */
/* flag is set to 1. */
/* */
/* Added STDOUT and STDIN logical name */
/* definitions. */
/* */
/* 6.31: Unprocessed batch files did not deallocate */
/* all memory on exit. */
/* */
/* 6.40: Split inputSource to fileSource and */
/* logicalSource. */
/* */
/* Added Env prefix to GetEvaluationError and */
/* SetEvaluationError functions. */
/* */
/* Added Env prefix to GetHaltExecution and */
/* SetHaltExecution functions. */
/* */
/* Pragma once and other inclusion changes. */
/* */
/* Added support for booleans with <stdbool.h>. */
/* */
/* Changed return values for router functions. */
/* */
/* Removed use of void pointers for specific */
/* data structures. */
/* */
/* ALLOW_ENVIRONMENT_GLOBALS no longer supported. */
/* */
/* UDF redesign. */
/* */
/*************************************************************/
#include <stdio.h>
#include <string.h>
#include "setup.h"
#include "argacces.h"
#if BLOAD || BLOAD_ONLY || BLOAD_AND_BSAVE
#include "bload.h"
#include "bsave.h"
#endif
#include "commline.h"
#include "cstrcpsr.h"
#include "envrnmnt.h"
#include "extnfunc.h"
#include "fileutil.h"
#include "memalloc.h"
#include "router.h"
#include "sysdep.h"
#include "utility.h"
#include "filecom.h"
/***************************************/
/* LOCAL INTERNAL FUNCTION DEFINITIONS */
/***************************************/
static void DeallocateFileCommandData(Environment *);
/***************************************/
/* FileCommandDefinitions: Initializes */
/* file commands. */
/***************************************/
void FileCommandDefinitions(
Environment *theEnv)
{
AllocateEnvironmentData(theEnv,FILECOM_DATA,sizeof(struct fileCommandData),DeallocateFileCommandData);
#if ! RUN_TIME
#if DEBUGGING_FUNCTIONS
AddUDF(theEnv,"batch","b",1,1,"sy",BatchCommand,"BatchCommand",NULL);
AddUDF(theEnv,"batch*","b",1,1,"sy",BatchStarCommand,"BatchStarCommand",NULL);
AddUDF(theEnv,"dribble-on","b",1,1,"sy",DribbleOnCommand,"DribbleOnCommand",NULL);
AddUDF(theEnv,"dribble-off","b",0,0,NULL,DribbleOffCommand,"DribbleOffCommand",NULL);
AddUDF(theEnv,"save","b",1,1,"sy",SaveCommand,"SaveCommand",NULL);
#endif
AddUDF(theEnv,"load","b",1,1,"sy",LoadCommand,"LoadCommand",NULL);
AddUDF(theEnv,"load*","b",1,1,"sy",LoadStarCommand,"LoadStarCommand",NULL);
#if BLOAD_AND_BSAVE
AddUDF(theEnv,"bsave","b",1,1,"sy",BsaveCommand,"BsaveCommand",NULL);
#endif
#if BLOAD || BLOAD_ONLY || BLOAD_AND_BSAVE
InitializeBsaveData(theEnv);
InitializeBloadData(theEnv);
AddUDF(theEnv,"bload","b",1,1,"sy",BloadCommand,"BloadCommand",NULL);
#endif
#endif
}
/******************************************************/
/* DeallocateFileCommandData: Deallocates environment */
/* data for file commands. */
/******************************************************/
static void DeallocateFileCommandData(
Environment *theEnv)
{
struct batchEntry *theEntry, *nextEntry;
theEntry = FileCommandData(theEnv)->TopOfBatchList;
while (theEntry != NULL)
{
nextEntry = theEntry->next;
if (theEntry->batchType == FILE_BATCH)
{ GenClose(theEnv,FileCommandData(theEnv)->TopOfBatchList->fileSource); }
else
{ rm(theEnv,(void *) theEntry->theString,strlen(theEntry->theString) + 1); }
DeleteString(theEnv,(char *) theEntry->fileName);
DeleteString(theEnv,(char *) theEntry->logicalSource);
rtn_struct(theEnv,batchEntry,theEntry);
theEntry = nextEntry;
}
if (FileCommandData(theEnv)->BatchBuffer != NULL)
{ rm(theEnv,FileCommandData(theEnv)->BatchBuffer,FileCommandData(theEnv)->BatchMaximumPosition); }
DeleteString(theEnv,FileCommandData(theEnv)->batchPriorParsingFile);
FileCommandData(theEnv)->batchPriorParsingFile = NULL;
#if DEBUGGING_FUNCTIONS
if (FileCommandData(theEnv)->DribbleBuffer != NULL)
{ rm(theEnv,FileCommandData(theEnv)->DribbleBuffer,FileCommandData(theEnv)->DribbleMaximumPosition); }
if (FileCommandData(theEnv)->DribbleFP != NULL)
{ GenClose(theEnv,FileCommandData(theEnv)->DribbleFP); }
#endif
}
#if DEBUGGING_FUNCTIONS
/******************************************/
/* DribbleOnCommand: H/L access routine */
/* for the dribble-on command. */
/******************************************/
void DribbleOnCommand(
Environment *theEnv,
UDFContext *context,
UDFValue *returnValue)
{
const char *fileName;
if ((fileName = GetFileName(context)) == NULL)
{
returnValue->lexemeValue = FalseSymbol(theEnv);
return;
}
returnValue->lexemeValue = CreateBoolean(theEnv,DribbleOn(theEnv,fileName));
}
/*******************************************/
/* DribbleOffCommand: H/L access routine */
/* for the dribble-off command. */
/*******************************************/
void DribbleOffCommand(
Environment *theEnv,
UDFContext *context,
UDFValue *returnValue)
{
returnValue->lexemeValue = CreateBoolean(theEnv,DribbleOff(theEnv));
}
#endif /* DEBUGGING_FUNCTIONS */
/**************************************/
/* BatchCommand: H/L access routine */
/* for the batch command. */
/**************************************/
void BatchCommand(
Environment *theEnv,
UDFContext *context,
UDFValue *returnValue)
{
const char *fileName;
if ((fileName = GetFileName(context)) == NULL)
{
returnValue->lexemeValue = FalseSymbol(theEnv);
return;
}
returnValue->lexemeValue = CreateBoolean(theEnv,OpenBatch(theEnv,fileName,false));
}
/******************************************/
/* BatchStarCommand: H/L access routine */
/* for the batch* command. */
/******************************************/
void BatchStarCommand(
Environment *theEnv,
UDFContext *context,
UDFValue *returnValue)
{
const char *fileName;
if ((fileName = GetFileName(context)) == NULL)
{
returnValue->lexemeValue = FalseSymbol(theEnv);
return;
}
returnValue->lexemeValue = CreateBoolean(theEnv,BatchStar(theEnv,fileName));
}
/***********************************************************/
/* LoadCommand: H/L access routine for the load command. */
/***********************************************************/
void LoadCommand(
Environment *theEnv,
UDFContext *context,
UDFValue *returnValue)
{
#if (! BLOAD_ONLY) && (! RUN_TIME)
const char *theFileName;
LoadError rv;
if ((theFileName = GetFileName(context)) == NULL)
{
returnValue->lexemeValue = FalseSymbol(theEnv);
return;
}
if (CommandLineData(theEnv)->EvaluatingTopLevelCommand)
{ SetPrintWhileLoading(theEnv,true); }
if ((rv = Load(theEnv,theFileName)) == LE_OPEN_FILE_ERROR)
{
SetPrintWhileLoading(theEnv,false);
OpenErrorMessage(theEnv,"load",theFileName);
returnValue->lexemeValue = FalseSymbol(theEnv);
return;
}
if (CommandLineData(theEnv)->EvaluatingTopLevelCommand)
{ SetPrintWhileLoading(theEnv,false); }
if (rv == LE_PARSING_ERROR) returnValue->lexemeValue = FalseSymbol(theEnv);
else returnValue->lexemeValue = TrueSymbol(theEnv);
#else
WriteString(theEnv,STDOUT,"Load is not available in this environment\n");
returnValue->lexemeValue = FalseSymbol(theEnv);
#endif
}
/****************************************************************/
/* LoadStarCommand: H/L access routine for the load* command. */
/****************************************************************/
void LoadStarCommand(
Environment *theEnv,
UDFContext *context,
UDFValue *returnValue)
{
#if (! BLOAD_ONLY) && (! RUN_TIME)
const char *theFileName;
LoadError rv;
if ((theFileName = GetFileName(context)) == NULL)
{
returnValue->lexemeValue = FalseSymbol(theEnv);
return;
}
if ((rv = Load(theEnv,theFileName)) == LE_OPEN_FILE_ERROR)
{
OpenErrorMessage(theEnv,"load*",theFileName);
returnValue->lexemeValue = FalseSymbol(theEnv);
return;
}
if (rv == LE_PARSING_ERROR) returnValue->lexemeValue = FalseSymbol(theEnv);
else returnValue->lexemeValue = TrueSymbol(theEnv);
#else
WriteString(theEnv,STDOUT,"Load* is not available in this environment\n");
returnValue->lexemeValue = FalseSymbol(theEnv);
#endif
}
#if DEBUGGING_FUNCTIONS
/*********************************************************/
/* SaveCommand: H/L access routine for the save command. */
/*********************************************************/
void SaveCommand(
Environment *theEnv,
UDFContext *context,
UDFValue *returnValue)
{
#if (! BLOAD_ONLY) && (! RUN_TIME)
const char *theFileName;
if ((theFileName = GetFileName(context)) == NULL)
{
returnValue->lexemeValue = FalseSymbol(theEnv);
return;
}
if (Save(theEnv,theFileName) == false)
{
OpenErrorMessage(theEnv,"save",theFileName);
returnValue->lexemeValue = FalseSymbol(theEnv);
return;
}
returnValue->lexemeValue = TrueSymbol(theEnv);
#else
WriteString(theEnv,STDOUT,"Save is not available in this environment\n");
returnValue->lexemeValue = FalseSymbol(theEnv);
#endif
}
#endif