dotmode.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 165 行

/****************************************************************************
*
*                            Open Watcom Project
*
*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
*  ========================================================================
*
*    This file contains Original Code and/or Modifications of Original
*    Code as defined in and that are subject to the Sybase Open Watcom
*    Public License version 1.0 (the 'License'). You may not use this file
*    except in compliance with the License. BY USING THIS FILE YOU AGREE TO
*    ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
*    provided with the Original Code and Modifications, and is also
*    available at www.sybase.com/developer/opensource.
*
*    The Original Code and all software distributed under the License are
*    distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
*    EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
*    ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
*    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
*    NON-INFRINGEMENT. Please see the License for the specific language
*    governing rights and limitations under the License.
*
*  ========================================================================
*
* Description:  WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
*               DESCRIBE IT HERE!
*
****************************************************************************/


#include <stdio.h>
#include <string.h>
#include "vi.h"

/*
 * SaveDotCmd - save the current dot buffer
 */
void SaveDotCmd( void )
{
    memcpy( DotCmd, DotBuffer, DotDigits * sizeof( vi_key ) );
    DotCmdCount = DotDigits;

} /* SaveDotCmd */

/*
 * DoDotMode - process the pressing of '.'
 */
int DoDotMode( void )
{
    int rc=ERR_NO_ERR;
    int cnt;

    /*
     * check if memorizing; '.' causes memorizing to end
     */
    if( EditFlags.MemorizeMode ) {
        EditFlags.MemorizeMode = FALSE;
        Message1( "%sended",MEMORIZE_MODE );
        DotDigits--;
        SaveDotCmd();
        DotDigits = 0;
        return( ERR_NO_ERR );
    }

    /*
     * check if we can enter dot mode
     */
    if( EditFlags.DotMode ) {
        return( ERR_ALREADY_IN_DOT_MODE );
    }
    if( EditFlags.InputKeyMapMode ) {
        return( ERR_INPUT_KEYMAP_RUNNING );
    }
    if( DotCmdCount <= 0 ) {
        return( ERR_NO_ERR );
    }

    /*
     * yes, run until done
     */
    cnt = GetRepeatCount();
    StartUndoGroup( UndoStack );
    while( cnt > 0 ) {
        EditFlags.DotMode = TRUE;
        DotCount = 0;
        LastError = ERR_NO_ERR;
        while( TRUE ) {
            LastEvent = GetNextEvent( FALSE );
            if( DotCount > DotCmdCount ) {
                break;
            }
            rc = DoLastEvent();
            if( rc > 0 || LastError ) {
                break;
            }
            DoneLastEvent( rc, TRUE );
        }
        cnt--;
    }
    EndUndoGroup( UndoStack );
    DCDisplayAllLines();
    return( rc );

} /* DoDotMode */

/*
 * DoAltDotMode - do alternate dot mode ('=')
 */
int DoAltDotMode( void )
{
    int rc=ERR_NO_ERR;
    int cnt;

    if( EditFlags.AltMemorizeMode ) {
        EditFlags.AltMemorizeMode = FALSE;
        Message1( "Alternate %sended",MEMORIZE_MODE );
        AltDotDigits--;
        return( ERR_NO_ERR );
    }

    /*
     * check if we can enter dot mode
     */
    if( EditFlags.AltDotMode || EditFlags.DotMode ) {
        return( ERR_ALREADY_IN_DOT_MODE );
    }
    if( EditFlags.InputKeyMapMode ) {
        return( ERR_INPUT_KEYMAP_RUNNING );
    }
    if( AltDotDigits <= 0 ) {
        return( ERR_NO_ERR );
    }

    /*
     * yes, run until done
     */
    DotDigits = 0;
    cnt = GetRepeatCount();
    StartUndoGroup( UndoStack );
    while( cnt > 0 ) {
        EditFlags.AltDotMode = TRUE;
        AltDotCount = 0;
        LastError = ERR_NO_ERR;
        while( TRUE ) {
            LastEvent = GetNextEvent( FALSE );
            if( AltDotCount > AltDotDigits ) {
                break;
            }
            rc = DoLastEvent();
            if( rc > 0 || LastError ) {
                break;
            }
            DoneLastEvent( rc, FALSE );
        }
        cnt--;
        EditFlags.AltDotMode = FALSE;
    }
    EndUndoGroup( UndoStack );
    DCDisplayAllLines();
    return( rc );

} /* DoAltDotMode */