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135 lines
3.7 KiB
C++
135 lines
3.7 KiB
C++
/* $Id: ShellCommandHelp.cpp,v 1.4 2001/01/13 23:55:37 narnaoud Exp $
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*
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* regexpl - Console Registry Explorer
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*
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* Copyright (C) 2000,2001 Nedko Arnaoudov <nedkohome@atia.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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// ShellCommandHelp.cpp: implementation of the CShellCommandHelp class.
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//
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//////////////////////////////////////////////////////////////////////
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#include "ph.h"
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#include "ShellCommandHelp.h"
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#define HELP_CMD _T("HELP")
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#define HELP_CMD_SHORT_DESC HELP_CMD _T(" command provides help information about Registry Explorer commands.\n")
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//////////////////////////////////////////////////////////////////////
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// Construction/Destruction
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//////////////////////////////////////////////////////////////////////
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CShellCommandHelp::CShellCommandHelp(CShellCommandsLinkedList& rCommandsLinkedList):m_rCommandsLinkedList(rCommandsLinkedList)
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{
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}
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CShellCommandHelp::~CShellCommandHelp()
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{
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}
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BOOL CShellCommandHelp::Match(const TCHAR *pchCommand)
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{
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return _tcsicmp(pchCommand,HELP_CMD) == 0;
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}
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int CShellCommandHelp::Execute(CConsole &rConsole, CArgumentParser& rArguments)
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{
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const TCHAR *pchArg = rArguments.GetNextArgument();
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CShellCommand *pCommand;
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if (pchArg == NULL)
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{
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POSITION pos = m_rCommandsLinkedList.GetFirstCommandPosition();
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while(pos)
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{
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pCommand = m_rCommandsLinkedList.GetNextCommand(pos);
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rConsole.Write(pCommand->GetHelpShortDescriptionString());
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}
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return 0;
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}
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if (_tcsicmp(pchArg,_T("GPL")) == 0)
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{
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HRSRC hrcGPL;
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HGLOBAL hGPL;
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char *pchGPL;
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DWORD dwSize;
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if ((hrcGPL = FindResource(NULL, _T("GPL"), _T("LICENSE")))&&
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(hGPL = LoadResource(NULL,hrcGPL))&&
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(pchGPL = (char *)LockResource(hGPL))&&
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(dwSize = SizeofResource(NULL,hrcGPL)))
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{
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// save last char
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char pchSaved[2];
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pchSaved[0] = pchGPL[dwSize-1];
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pchSaved[1] = 0;
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// make null-terminated string
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pchGPL[dwSize-1] = 0;
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// replace all non-printable chars except CR, LF and HTAB with spaces
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for (DWORD i = 0; i < dwSize ; i++)
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if ((!isprint(pchGPL[i]))&&(pchGPL[i] != '\r')&&(pchGPL[i] != '\n')&&(pchGPL[i] != '\t'))
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pchGPL[i] = ' ';
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rConsole.Write(pchGPL);
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rConsole.Write(pchSaved);
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}
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else
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{
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rConsole.Write(_T("Internal error cannot load GPL.\n"));
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}
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return 0;
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}
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while (pchArg)
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{
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pCommand = m_rCommandsLinkedList.Match(pchArg);
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if ((!pCommand)&&((_tcsicmp(pchArg,_T("/?")) == 0)||(_tcsicmp(pchArg,_T("-?")) == 0)))
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pCommand = this;
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if (pCommand)
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{
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rConsole.Write(pCommand->GetHelpString());
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}
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else
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{
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rConsole.Write(_T("HELP: Unknown command \""));
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rConsole.Write(pchArg);
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rConsole.Write(_T("\"\n"));
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}
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pchArg = rArguments.GetNextArgument();
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}
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return 0;
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}
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const TCHAR * CShellCommandHelp::GetHelpString()
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{
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return HELP_CMD_SHORT_DESC
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_T("Syntax: ") HELP_CMD _T(" [<COMMAND>] [/?]\n")
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_T(" COMMAND - Command for which help will be displayed.\n")
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_T(" /? - This help.\n\n")
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_T("Without parameters, command lists available commands.\n");
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}
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const TCHAR * CShellCommandHelp::GetHelpShortDescriptionString()
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{
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return HELP_CMD_SHORT_DESC;
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}
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