init.c

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C语言 代码 · 共 576 行 · 第 1/2 页

    /*
     * initial configuration
     */
    SetMajickString( NULL );
    FileEndString = MemStrDup( "[END_OF_FILE]" );

    MatchData[0] = MemStrDup( "{" );
    MatchData[1] = MemStrDup( "}" );
    MatchData[2] = MemStrDup( "\\(" );
    MatchData[3] = MemStrDup( "\\)" );

    if( cfgFN[0] != 0 ) {
        c[0] = 0;
        ln = 0;
        rc = Source( cfgFN, c, &ln );
        if( rc == ERR_FILE_NOT_FOUND ) {
            #ifdef __WIN__
                CloseStartupDialog();
                MessageBox( (HWND) NULL, "Could not locate configuration information; please make sure your EDPATH environment variable is set correctly",
                                        EditorName, MB_OK );
                ExitEditor( -1 );
            #else
                rc = ERR_NO_ERR;
            #endif
        }
    } else {
        rc = ERR_NO_ERR;
    }
    SetGadgetString( NULL );
    if( wantNoReadEntireFile ) {
        EditFlags.ReadEntireFile = FALSE;
    }
    VerifyTmpDir();
    while( LostFileCheck() );
    HookScriptCheck();

    if( EditFlags.Quiet ) {
        EditFlags.Spinning = EditFlags.Clock = FALSE;
    }
    ExtendedMemoryInit();

    /*
     * more misc. setup
     */
    if( WordDefn == NULL ) {
        AddString( &WordDefn, &WordDefnDefault[6] );
        InitWordSearch( WordDefn );
    }
    if( WordAltDefn == NULL ) {
        AddString( &WordAltDefn, WordDefnDefault );
    }
    if( TagFileName == NULL ) {
        AddString( &TagFileName, "tags" );
    }
    WorkLine = MemAlloc( LINE_SIZE + MaxLine+2 );
    DotBuffer = MemAlloc( ( maxdotbuffer + 2 ) * sizeof( vi_key ) );
    AltDotBuffer = MemAlloc( ( maxdotbuffer + 2 ) * sizeof( vi_key ) );
    DotCmd = MemAlloc( ( maxdotbuffer + 2 ) * sizeof( vi_key ) );
    WorkLine->len = -1;
    SwapBlockInit( MaxSwapBlocks );
    ReadBuffer = MemAlloc( MAX_IO_BUFFER+6 );
    WriteBuffer = MemAlloc( MAX_IO_BUFFER+6 );
    FindHistInit( FindHist.max );
    FilterHistInit( FilterHist.max );
    CLHistInit( CLHist.max );
    LastFilesHistInit( LastFilesHist.max );
    GetClockStart();
    GetSpinStart();
    SelRgnInit();
    SSInitAfterConfig();
#if defined( VI_RCS )
    ViRCSInit();
#endif

    /*
     * create windows
     */
    StartWindows();
    InitMouse();
    i = NewMessageWindow();
    if( i ) {
        FatalError( i );
    }
    DoVersion();
    i = InitMenu();
    if( i ) {
        FatalError( i );
    }
    EditFlags.SpinningOurWheels = TRUE;
    EditFlags.ClockActive = TRUE;
    EditFlags.DisplayHold = TRUE;
    i = NewStatusWindow();
    if( i ) {
        FatalError( i );
    }
    EditFlags.DisplayHold = FALSE;
    MaxMemFreeAfterInit = MemSize();

    /*
     * start specified file(s)
     */
    arg = argc-1;
    k = 1;
    cmd[0] = 'e';
    cmd[1] = 0;
    EditFlags.WatchForBreak = TRUE;

    /*
     * look for a tag: if there is one, set it up as the file to start
     */
    if( cTag != NULL && !EditFlags.NoInitialFileLoad ) {
        #if defined( __NT__ ) && !defined( __WIN__ )
        {
            if( !EditFlags.Quiet ) {
                extern HANDLE OutputHandle;
                SetConsoleActiveScreenBuffer( OutputHandle );
            }
        }
        #endif
        i = LocateTag( cTag, file, buff );
        cFN = file;
        if( i ) {
            if( i == ERR_TAG_NOT_FOUND ) {
                Error( GetErrorMsg(i), cTag );
                ExitEditor( 0 );
            }
            FatalError( i );
        }
    }

    while( TRUE && !EditFlags.NoInitialFileLoad ) {

        if( cFN == nullFN && !EditFlags.UseNoName ) {
            break;
        }

        strcat( cmd, SingleBlank );
        strcat( cmd, cFN );
        ocnt = cnt = ExpandFileNames( cFN, &list );
        if( !cnt ) {
            cnt = 1;
        } else {
            cFN = list[0];
        }

        for( j=0;j<cnt;j++ ) {

            i = NewFile( cFN, FALSE );
            if( i && i != NEW_FILE ) {
                FatalError( i );
            }
            if( EditFlags.BreakPressed ) {
                break;
            }
            if( cnt > 0 && j < cnt-1 ) {
                cFN = list[j+1];
            }
        }
        if( ocnt > 0 ) {
            MemFreeList( ocnt, list );
        }
        if( EditFlags.BreakPressed ) {
            ClearBreak();
            break;
        }
        k++;
        arg--;
        if( cTag != NULL || arg < 1 ) {
            break;
        }
        cFN = argv[ k ];
    }
    if( EditFlags.StdIOMode ) {
        i = NewFile( "stdio", FALSE );
        if( i ) {
            FatalError( i );
        }
    }
    EditFlags.WatchForBreak = EditFlags.Starting = FALSE;

    /*
     * if there was a tag, do the appropriate search
     */
    if( cTag != NULL && !EditFlags.NoInitialFileLoad ) {
        if( buff[0] != '/' ) {
            i = atoi( buff );
            i = GoToLineNoRelCurs( i );
        } else {
            i = FindTag( buff );
        }
        if( i > 0 ) {
            Error( GetErrorMsg( i ) );
        }
    }

    /*
     * try to run startup file
     */
    if( EditFlags.RecoverLostFiles ) {
        startcnt = 0;
    }
    for( i=0;i<startcnt;i++ ) {
        GetFromEnv( startup[i], tmp );
        AddString2( &cfgFN, tmp );
        if( cfgFN[0] != 0 ) {
            if( startup_parms[i] != NULL ) {
                parm = startup_parms[i];
            } else {
                c[0] = 0;
                parm = c;
            }
            #if defined( __NT__ ) && !defined( __WIN__ )
            {
                if( !EditFlags.Quiet ) {
                    extern HANDLE OutputHandle;
                    SetConsoleActiveScreenBuffer( OutputHandle );
                }
            }
            #endif
            rc = Source( cfgFN, parm, &ln );
        }
    }
    if( rc > 0 ) {
        Error( "%s on line %d of \"%s\"", GetErrorMsg( rc ), ln, cfgFN );
    }
    if( argc == 1 ) {
        LoadHistory( NULL );
    } else {
        LoadHistory( cmd );
    }
    if( GrepDefault == NULL ) {
        AddString( &GrepDefault, "*.(c|h)" );
    }
    if( goCmd[0] != 0 ) {
        KeyAddString( goCmd );
    }
    if( keysToPush != NULL ) {
        KeyAddString( keysToPush );
    }
    #ifdef __WIN__
        if( lineToGoTo != 0 ) {
            SetCurrentLine( lineToGoTo );
            NewCursor( CurrentWindow, NormalCursorType );
        }
    #endif
    AutoSaveInit();
    HalfPageLines = WindowAuxInfo( CurrentWindow, WIND_INFO_TEXT_LINES )/2-1;
    #ifdef __386__
        VarAddGlobalStr( "OS386", "1" );
    #endif
    if( StatusString == NULL ) {
        AddString( &StatusString, "L:$6L$nC:$6C" );
    }
    UpdateStatusWindow();
    #ifdef __WIN__
        if( CurrentInfo == NULL ) {
            // no file loaded - screen is disconcertenly empty - reassure
            DisplayFileStatus();
        }
    #endif
    NewCursor( CurrentWindow, NormalCursorType );
    #if defined( __NT__ ) && !defined( __WIN__ )
    {
        extern HANDLE OutputHandle;
        SetConsoleActiveScreenBuffer( OutputHandle );
    }
    #endif
    #if defined( PREBUILD )
    if( startcnt == 0 ) {
        ExitEditor( 0 );
    }
    #endif

} /* doInitializeEditor */

/*
 * InitializeEditor - start up
 */
void InitializeEditor( void )
{
    extern int          _argc;
    extern char **      _argv;

    doInitializeEditor( _argc, _argv );

} /* InitializeEditor */