main.c

NASA 开发使用的一个专家系统

   /*******************************************************/
   /*      "C" Language Integrated Production System      */
   /*                                                     */
	/*                  A                                */
	/*                   Of The                   */
	/*             Software Technology Branch              */
	/*             NASA - Johnson Space Center             */
	/*                                                     */
	/*               CLIPS Version 6.00  10/01/92          */
	/*                                                     */
   /*                    MAIN MODULE                      */
	/*******************************************************/

/***********************************************************
* Purpose: Initalizing and Maintaining the Interface windows 
*       and main menu items during execution.
*                                                            
* Principal Programmer(s):                                   
*      Christopher J. Ortiz                                  
*                                                            
* Contributing Programmer(s):                                
*      Gary Riley
*                                                      
* Revision History:                                          
*
************************************************************/

/*-------------------------------+
| Windows & System Include Files |
+-------------------------------*/
#include <windows.h>
#undef CopyMemory
#include <stdlib.h>  
#include <ctype.h> // Remove later
#include <stdio.h>
#include <string.h>
#include <time.h> // Remove later

/*------------------------+
| CLIPS 6.0 Include Files |
+------------------------*/
#include "setup.h"
#include "commline.h"
#include "extnfunc.h"
#include "sysdep.h"
#include "utility.h"
#include "engine.h"
#include "clipsmem.h"
#include "argacces.h"
#include "router.h"
#include "memory.h"

/*------------------------+
| Interface Include Files |
+------------------------*/
#include "ids.h"
#include "dialog.h"
#include "commdlg.h"
#include "status.h"
#include "memory.h"
#include "main.h"
#include "diag_win.h"
#include "menucmds.h"

HCURSOR NowCursor;   /* Current Cursor */
HANDLE hAccTable;
HANDLE hInst= NULL;
HCURSOR ARROW, QUERY;
HCURSOR WAIT[10];
int ShiftKeyDown;
int ApplicationFocus = 0;

/*-----------------+
| Local Procedures |
+-----------------*/
BOOL InitApplication (HANDLE);
BOOL InitInstance( HANDLE, int);
VOID SetUpRouters ( VOID );
int  QueryFunction (char*);
int  GetCFunction(char*);
int  SetJoeWarningsCommand ( VOID );
int  WinWaitEvent ( VOID );
static VOID InitializeKeywords( VOID );
VOID DefineWinFunctions ( VOID );
int  ExitFunction ( int );
int  SetCompletionDialogCommand( VOID );
int  WinOutOfMemoryFunction( unsigned long int );
int PASCAL WinMain(HANDLE, HANDLE, LPSTR, int);
VOID WinHelp2 ( VOID );

/***************************************************************
* WinMAIN: Start execution of CLIPS.  This function must be
*   redefined in order to embed CLIPS within another program. 
*   Example of redefined main:
*     main()
*       {                                                     
*        init_clips();                                        
*            .                                                
*            .                                                
*            .                                                
*        process_data();                                      
*        RunCLIPS(-1);
*        evaluate_data();                                     
*            .                                                
*            .                                                
*            .                                                
*        final_results();                                     
*       }                                                     
***************************************************************/
#if IBM_TBC
#pragma argsused
#endif
int PASCAL WinMain(hInstance, hPrevInstance, lpCmdLine, nCmdShow)
	HANDLE hInstance;
	HANDLE hPrevInstance;
	LPSTR  lpCmdLine;
	int    nCmdShow;

{  extern HWND hDialogWnd;
	extern HANDLE hAccTable;
	/*
	FILE *theFile;
	time_t tp;
	struct tm *lt;
	char *theTime;

	theFile = fopen("x.txt","w");
	if (theFile == NULL) return;
	time(&tp);
	lt = localtime(&tp);
	theTime = asctime(lt);
	fprintf(theFile,"%s\n",theTime);

	if (isalpha('('))
	  { fprintf(theFile,"2 is alpha\n"); }
	else
	  { fprintf(theFile,"2 is not alpha\n"); }
	fclose(theFile);
	exit(1);
	*/

	/*----------------------------------+
	| Check Windows Version Information |
	+---------------------------------*/
	{  int Version = LOBYTE(LOWORD( GetVersion()))*100 +
	 HIBYTE(LOWORD( GetVersion()));

		if ( Version < 310 )
		{  MessageBeep (0);
	 MessageBox ( NULL, "CLIPS Needs Windows 3.1 or Higher "," Version Error", MB_ICONHAND | MB_OK );
	 return ( TRUE );
		}
	}

	InitializeCLIPS();

	/*-------------------------------------------------+
   | Load Accelerator table and Initalize Application |
   +-------------------------------------------------*/
   hAccTable = LoadAccelerators (hInstance, "Main_Accelerator");
   if (!hPrevInstance)
      if (!InitApplication(hInstance))
	 return (FALSE);

   /*-------------------+
   | Initalize Instance |
	+-------------------*/
   if (!InitInstance(hInstance, nCmdShow))
      return (FALSE);

   /*--------------------------------+
   | setup routers for the interface |
   +--------------------------------*/
   SetUpRouters ();

   /*-------------------------------+
   | Create Terminal Data Structure |
   +-------------------------------*/
   CreateTerminal ();

   /*----------------------------------+
	| Set up hook between CLIPS command |
   | loop and interface event loop.    |
   +----------------------------------*/
   SetEventFunction((int(*)())WinWaitEvent);

   /*------------------------------------+
   | Add execution functions to update   |
   | the interface between rule firings. |
   +------------------------------------*/
   AddPeriodicFunction("status_wnd", WinRunEvent ,0);
#if DEFRULE_CONSTRUCT
   AddRunFunction ("run_function", WinRunEvent, 0);
#endif

   /*------------------------------------------------------------+
	| Change the functions to be called when CLIPS is out of      |
   | memory, CLIPS preforms a reset, and CLIPS preforms a clear. |
   +------------------------------------------------------------*/
   SetOutOfMemoryFunction ( WinOutOfMemoryFunction );

   /*---------------------------------+
   / Add Interface specific functions |
   +---------------------------------*/
   InitializeKeywords();
   DefineWinFunctions();
   EnableStatusWindows();
   /*------------------------------------------------------+
   | Get message and dispatch it to the appropriate window |
	+------------------------------------------------------*/

	CommandLoop();
	return (TRUE);
}

/*******************************************************************
* InitApplication: function creates & registers window classes for
*    subsequent use in calls to the CreateWindow function.
*    Performs any initialization necessary only for the first
*    executing instance of the application.
*******************************************************************/

BOOL InitApplication(hInstance)
   HANDLE hInstance;

{  WNDCLASS dialog;
   WNDCLASS status;

   dialog.style = CS_CLASSDC | CS_VREDRAW | CS_HREDRAW;
   dialog.lpfnWndProc = (WNDPROC) DialogWndProc;
   dialog.cbClsExtra = 0;
   dialog.cbWndExtra = 0;
   dialog.hInstance = hInstance;
   dialog.hIcon = LoadIcon(hInstance, "Clips_Icon");
   dialog.hCursor = LoadCursor ( NULL, IDC_ARROW);
   dialog.hbrBackground = GetStockObject(WHITE_BRUSH);
   dialog.lpszMenuName ="MainMenu";
   dialog.lpszClassName = "DialogWClass";

   if (!(RegisterClass(&dialog)))
      return (FALSE);

   status.style = CS_CLASSDC | CS_HREDRAW | CS_VREDRAW;
   status.lpfnWndProc = (WNDPROC) StatusWndProc;
   status.cbClsExtra = 0;
   status.cbWndExtra = 0;
   status.hInstance = hInstance;
   status.hIcon = LoadIcon(hInstance, "Clips_Icon");
   status.hCursor = NULL;
   status.hbrBackground = GetStockObject(WHITE_BRUSH);
   status.lpszMenuName =  NULL;
   status.lpszClassName = "StatusWClass";

   return (RegisterClass(&status));
}

/***************************************************************
* InitInstance: Creates & Displays all the necessary windows
*   as well as loading all cursor resources. 
*   Performs any initialization necessary for every executing
*   instance of the application.
****************************************************************/

BOOL InitInstance(hInstance, nCmdShow)
   HANDLE hInstance;
   int    nCmdShow;

{  extern HANDLE hInst;        /* Handle to instance data*/
   extern HWND   hInstWnd;     /* Handle to Instance window */
   TEXTMETRIC tm;
   extern SCREEN WinDialog, WinFact;
   extern SCREEN WinAgenda;
   extern SCREEN WinGlobal, WinInst, WinFocus;
   HDC    hDC;
   int width =  GetSystemMetrics ( SM_CXSCREEN );
   int height = GetSystemMetrics ( SM_CYSCREEN );
   RECT ClientRect;

   hInst = hInstance;

#if CLP_HELP
   /*-----------------------+
   | Find the path for Help |
   +-----------------------*/
   {  extern char *help_file;
      char HelpPath [255];
      int size,x ;
      if ( help_file != NULL )
	 genfree ( help_file, strlen (help_file) );
      GetModuleFileName(hInst,(LPSTR) &HelpPath, 254);
      HelpPath [strlen ( HelpPath ) - 12] = '\0';
      strcat ( HelpPath, "CLIPS.HLP\0");
      for ( x=0; x< strlen(HelpPath); x++)
	 if ( HelpPath[x] == '\\' )
	    HelpPath[x] = '/';
      size = strlen( HelpPath ) + 1;
      help_file = (char *) genalloc ( size );
      strncpy ( help_file, HelpPath, size );
   }
#endif

   /*--------------+
   | Dialog Window |
   +--------------*/

   WinDialog.hWnd = CreateWindow( "DialogWClass", "CLIPS 6.0",
      WS_SYSMENU | WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX | WS_CAPTION |  WS_VSCROLL | WS_HSCROLL,
      0,0, (width * .66)-5,(height * .66)-5,
      NULL, NULL, hInstance, (LPSTR) NULL );

   if (!WinDialog.hWnd)
      return (FALSE);

   hDC = GetDC ( WinDialog.hWnd );
   SelectObject (hDC, GetStockObject(SYSTEM_FIXED_FONT));
   GetTextMetrics ( hDC, &tm );
   ReleaseDC ( WinDialog.hWnd, hDC );

   GetClientRect  ( WinDialog.hWnd, (LPRECT) &ClientRect );
   WinDialog.LastLine = 0;
   WinDialog.LineSize = tm.tmHeight+ tm.tmExternalLeading;
   WinDialog.NoLines  = (ClientRect.bottom / WinDialog.LineSize)-1;

   ShowWindow(WinDialog.hWnd, nCmdShow );

#if DEFTEMPLATE_CONSTRUCT
   /*------------+
   | Fact Window |
   +------------*/
   WinFact.hWnd = CreateWindow( "StatusWClass", NULL,
      WS_THICKFRAME | WS_MAXIMIZEBOX | WS_CAPTION |  WS_VSCROLL | WS_HSCROLL,
      0, 0, 0, 0, NULL, NULL, hInstance, NULL);

   if (!WinFact.hWnd)
     return (FALSE);

   hDC = GetDC ( WinFact.hWnd);
   SelectObject (hDC, GetStockObject(SYSTEM_FIXED_FONT));
   GetTextMetrics(hDC, &tm);
   ReleaseDC ( WinFact.hWnd, hDC );
   WinFact.LineSize = tm.tmHeight+ tm.tmExternalLeading;
   WinFact.NoLines = 0;
   ShowWindow(WinFact.hWnd,   SW_HIDE );
#endif

#if OBJECT_SYSTEM
   /*----------------+
   | Instance Window |
   +----------------*/
   WinInst.hWnd = CreateWindow( "StatusWClass", NULL,
      WS_THICKFRAME | WS_MAXIMIZEBOX | WS_CAPTION | WS_VSCROLL | WS_HSCROLL,
      0, 0, 0, 0, NULL, NULL, hInstance, NULL);

   if (!WinInst.hWnd)
      return (FALSE);

   hDC = GetDC ( WinInst.hWnd);
   SelectObject (hDC, GetStockObject(SYSTEM_FIXED_FONT));
   GetTextMetrics(hDC, &tm);
   ReleaseDC ( WinInst.hWnd, hDC );
   WinInst.LineSize = ( tm.tmHeight + tm.tmExternalLeading );
   WinInst.NoLines = 0;
   ShowWindow(WinInst.hWnd,   SW_HIDE );
#endif

#if DEFGLOBAL_CONSTRUCT
   /*---------------+
   | Globals Window |
   +---------------*/
   WinGlobal.hWnd = CreateWindow( "StatusWClass", NULL,
      WS_THICKFRAME | WS_MAXIMIZEBOX | WS_CAPTION | WS_VSCROLL | WS_HSCROLL,
      0, 0, 0, 0, NULL, NULL, hInstance, NULL);

   if (!WinGlobal.hWnd)
      return (FALSE);

   hDC = GetDC ( WinGlobal.hWnd);
   SelectObject (hDC, GetStockObject(SYSTEM_FIXED_FONT));
   GetTextMetrics(hDC, &tm);
   ReleaseDC ( WinGlobal.hWnd, hDC );
   WinGlobal.LineSize = ( tm.tmHeight + tm.tmExternalLeading );
   WinGlobal.NoLines = 0;
   ShowWindow(WinGlobal.hWnd, SW_HIDE );
#endif

#if DEFRULE_CONSTRUCT
   /*--------------+
   | Agenda Window |
   +--------------*/
    WinAgenda.hWnd = CreateWindow( "StatusWClass", NULL,
      WS_THICKFRAME | WS_MAXIMIZEBOX | WS_CAPTION | WS_VSCROLL | WS_HSCROLL,
      0, 0, 0, 0, NULL, NULL, hInstance, NULL);

   if (!WinAgenda.hWnd)
      return (FALSE);

   hDC = GetDC ( WinAgenda.hWnd);
   SelectObject (hDC, GetStockObject(SYSTEM_FIXED_FONT));
   GetTextMetrics(hDC, &tm);
   ReleaseDC ( WinAgenda.hWnd, hDC );
   WinAgenda.LineSize = ( tm.tmHeight + tm.tmExternalLeading );
   WinAgenda.NoLines = 0;
   ShowWindow(WinAgenda.hWnd, SW_HIDE );