1 /*
2  * regexpl - Console Registry Explorer
3  *
4  * Copyright (C) 2000-2005 Nedko Arnaudov <nedko@users.sourceforge.net>
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; see the file COPYING.  If not, write to
18  * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19  * Boston, MA 02111-1307, USA.
20  */
21 
22 // ShellCommandsLinkedList.cpp: implementation of the CShellCommandsLinkedList class.
23 //
24 //////////////////////////////////////////////////////////////////////
25 
26 #include "ph.h"
27 #include "ShellCommandsLinkedList.h"
28 
29 //////////////////////////////////////////////////////////////////////
30 // Construction/Destruction
31 //////////////////////////////////////////////////////////////////////
32 
33 CShellCommandsLinkedList::CShellCommandsLinkedList(CConsole& rConsole):m_rConsole(rConsole)
34 {
35 	m_pRoot = NULL;
36 }
37 
38 CShellCommandsLinkedList::~CShellCommandsLinkedList()
39 {
40 }
41 
42 void CShellCommandsLinkedList::AddCommand(CShellCommand *pCommand)
43 {
44 	// Create new node
45 	SNode *pNewNode = new (std::nothrow) SNode;
46 	if (pNewNode == NULL)
47 		return;
48 
49 	pNewNode->m_pData = pCommand;
50 
51 	// add new node to the end
52 	if (m_pRoot)
53 	{
54 		SNode *pLastNode = m_pRoot;
55 
56 		while (pLastNode->m_pNext)
57 			pLastNode = pLastNode->m_pNext;
58 
59 		pLastNode->m_pNext = pNewNode;
60 	}
61 	else
62 	{
63 		m_pRoot = pNewNode;
64 	}
65 }
66 
67 int CShellCommandsLinkedList::Execute(CArgumentParser& rArgumentParser, int& nReturnValue)
68 {
69 	rArgumentParser.ResetArgumentIteration();
70 
71 	const TCHAR *pchCommand = rArgumentParser.GetNextArgument();
72 
73 	if (pchCommand == NULL)	// empty command line
74 		return -2;
75 
76 	int i = -1;
77 
78 	SNode *pNode = m_pRoot;
79 
80 	while(pNode)
81 	{
82 		i++;
83 		if (pNode->m_pData->Match(pchCommand))
84 		{
85 			nReturnValue = pNode->m_pData->Execute(m_rConsole,rArgumentParser);
86 			return i;
87 		}
88 		pNode = pNode->m_pNext;
89 	}
90 
91 	return -1;
92 }
93 
94 CShellCommand * CShellCommandsLinkedList::Match(const TCHAR * pchCommand)
95 {
96 	SNode *pNode = m_pRoot;
97 
98 	while(pNode)
99 	{
100 		if (pNode->m_pData->Match(pchCommand))
101 			return pNode->m_pData;
102 		pNode = pNode->m_pNext;
103 	}
104 
105 	return NULL;
106 }
107 
108 POSITION CShellCommandsLinkedList::GetFirstCommandPosition()
109 {
110 	return (POSITION)m_pRoot;
111 }
112 
113 CShellCommand * CShellCommandsLinkedList::GetNextCommand(POSITION& rPos)
114 {
115 	CShellCommand * pCommand = ((SNode *)rPos)->m_pData;
116 	rPos = (POSITION)(((SNode *)rPos)->m_pNext);
117 	return pCommand;
118 }
119 
120