reactos/modules/rosapps/applications/sysutils/regexpl/ShellCommandsLinkedList.cpp

120 lines
2.8 KiB
C++

/*
* 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.
*/
// ShellCommandsLinkedList.cpp: implementation of the CShellCommandsLinkedList class.
//
//////////////////////////////////////////////////////////////////////
#include "ph.h"
#include "ShellCommandsLinkedList.h"
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
CShellCommandsLinkedList::CShellCommandsLinkedList(CConsole& rConsole):m_rConsole(rConsole)
{
m_pRoot = NULL;
}
CShellCommandsLinkedList::~CShellCommandsLinkedList()
{
}
void CShellCommandsLinkedList::AddCommand(CShellCommand *pCommand)
{
// Create new node
SNode *pNewNode = new (std::nothrow) SNode;
if (pNewNode == NULL)
return;
pNewNode->m_pData = pCommand;
// add new node to the end
if (m_pRoot)
{
SNode *pLastNode = m_pRoot;
while (pLastNode->m_pNext)
pLastNode = pLastNode->m_pNext;
pLastNode->m_pNext = pNewNode;
}
else
{
m_pRoot = pNewNode;
}
}
int CShellCommandsLinkedList::Execute(CArgumentParser& rArgumentParser, int& nReturnValue)
{
rArgumentParser.ResetArgumentIteration();
const TCHAR *pchCommand = rArgumentParser.GetNextArgument();
if (pchCommand == NULL) // empty command line
return -2;
int i = -1;
SNode *pNode = m_pRoot;
while(pNode)
{
i++;
if (pNode->m_pData->Match(pchCommand))
{
nReturnValue = pNode->m_pData->Execute(m_rConsole,rArgumentParser);
return i;
}
pNode = pNode->m_pNext;
}
return -1;
}
CShellCommand * CShellCommandsLinkedList::Match(const TCHAR * pchCommand)
{
SNode *pNode = m_pRoot;
while(pNode)
{
if (pNode->m_pData->Match(pchCommand))
return pNode->m_pData;
pNode = pNode->m_pNext;
}
return NULL;
}
POSITION CShellCommandsLinkedList::GetFirstCommandPosition()
{
return (POSITION)m_pRoot;
}
CShellCommand * CShellCommandsLinkedList::GetNextCommand(POSITION& rPos)
{
CShellCommand * pCommand = ((SNode *)rPos)->m_pData;
rPos = (POSITION)(((SNode *)rPos)->m_pNext);
return pCommand;
}