ShellCommandDeleteKey.cpp

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/*
 * regexpl - Console Registry Explorer
 *
 * Copyright (C) 2000-2005 Nedko Arnaudov <nedko@users.sourceforge.net>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */
 
// ShellCommandDeleteKey.cpp: implementation of the CShellCommandDeleteKey class.
//
 
#include "ph.h"
#include "ShellCommandDeleteKey.h"
#include "RegistryExplorer.h"
 
#define DK_CMD          _T("DK")
#define DK_CMD_SHORT_DESC   DK_CMD _T(" command is used to delete key(s).\n")
 
// Construction/Destruction
 
CShellCommandDeleteKey::CShellCommandDeleteKey(CRegistryTree& rTree):m_rTree(rTree)
{
}
 
CShellCommandDeleteKey::~CShellCommandDeleteKey()
{
}
 
BOOL CShellCommandDeleteKey::Match(const TCHAR *pchCommand)
{
    return _tcsicmp(pchCommand,DK_CMD) == 0;
}
 
int CShellCommandDeleteKey::Execute(CConsole &rConsole, CArgumentParser& rArguments)
{
    TCHAR *pchKey = NULL, *pchArg;
 
    BOOL blnHelp = FALSE;
    BOOL blnExitAfterHelp = FALSE;
    BOOL blnRecursive = FALSE;
 
    while((pchArg = rArguments.GetNextArgument()) != NULL)
    {
        if ((_tcsicmp(pchArg,_T("/?")) == 0)
            ||(_tcsicmp(pchArg,_T("-?")) == 0))
        {
            blnHelp = TRUE;
        }
        else if ((_tcsicmp(pchArg,_T("/s")) == 0)
            ||(_tcsicmp(pchArg,_T("-s")) == 0))
        {
            blnRecursive = TRUE;
        }
        else
        {
            if (pchKey)
            {
                rConsole.Write(_T("Wrong parameter : \""));
                rConsole.Write(pchArg);
                rConsole.Write(_T("\"\n\n"));
                blnHelp = TRUE;
            }
            else
            {
                pchKey = pchArg;
            }
        }
    }
 
    if ((!blnHelp) && (!pchKey))
    {
        rConsole.Write(_T("Key name not specified !\n\n"));
        blnExitAfterHelp = TRUE;
    }
 
    if (blnHelp)
    {
        rConsole.Write(GetHelpString());
        if (blnExitAfterHelp)
            return 0;
        else
        rConsole.Write(_T("\n"));
    }
 
  // search for last key name token
  TCHAR *pch = pchKey;
  while(*pch)
    pch++;
 
  if (pch > pchKey)
    pch--;
 
  while(*pch == _T('\\'))
    *pch = 0;
 
  while((pch > pchKey)&&(*pch != _T('\\')))
    pch--;
 
  ASSERT(pch >= pchKey);
 
  const TCHAR *pszPath;
  TCHAR *pszPattern = pch;
  if (*pch == _T('\\'))
    pszPattern++;
 
  if (pch == pchKey)
  {
    pszPath = _T(".");
  }
  else
  {
    if (pch-1 == pchKey)
    {
      rConsole.Write(DK_CMD COMMAND_NA_ON_ROOT);
      return 0;
    }
    else
    {
      *pch = 0;
      pszPath = pchKey;
    }
  }
 
  {
    size_t s = _tcslen(pszPattern);
    if (s && (pszPattern[0] == _T('\"'))&&(pszPattern[s-1] == _T('\"')))
    {
      pszPattern[s-1] = 0;
      pszPattern++;
    }
  }
 
    if (!m_rTree.DeleteSubkeys(pszPattern,pszPath,blnRecursive))
    {
        rConsole.Write(_T("Cannot delete key(s).\n"));
        rConsole.Write(m_rTree.GetLastErrorDescription());
    }
  else
  {
    InvalidateCompletion();
  }
 
    return 0;
}
 
const TCHAR * CShellCommandDeleteKey::GetHelpString()
{
    return DK_CMD_SHORT_DESC
            _T("Syntax: ") DK_CMD _T(" [/s] [/?] [PATH]KEY_NAME\n\n")
      _T("    PATH     - optional path to key which subkey(s) will be deleted. Default is current key.")
      _T("    KEY_NAME - name of key to be deleted. Wildcards can be used.")
            _T("    /?       - This help.\n\n")
            _T("    /s       - Delete key and all subkeys.\n");
}
 
const TCHAR * CShellCommandDeleteKey::GetHelpShortDescriptionString()
{
    return DK_CMD_SHORT_DESC;
}