Professional System Library: Introduction

// PSLCmdParam.cpp : Implementation of CPSLCmdParam

#include "stdafx.h"
#include "PSLCmdParam.h"

CPSLCmdParam::CPSLCmdParam()
{
	m_sName = _T("");
	m_sValue = _T("");
	m_sCommand = _T("");
}

HRESULT CPSLCmdParam::FinalConstruct()
{
	return S_OK;
}

void CPSLCmdParam::FinalRelease()
{
}

/*
Command name must always start with either '/' or '-';
Otherwise, this is not a command, and goes into Value;

The command name must have at least one symbol in it;

When values are within quotes, quotes are removed;
Value is truncated to contain no leading spaces;
*/
void CPSLCmdParam::Initialize(LPCTSTR sCommand)
{
	m_sCommand = sCommand;

	long L = (long)_tcslen(sCommand);
	tstring buffer;
	buffer.resize(L + 1);
	TCHAR symbol = sCommand[0];
	int idx = 0;
	if(symbol == '/' || symbol == '-')
	{
		// This looks like a command;
		if(L < 2)
			return; // Nothing;
		bool bHasValue = false;
		idx ++;
		while(idx < L)
		{
			symbol = sCommand[idx];
			if(symbol == ' ')
			{
				if(idx > 1)
				{
					_tcsncpy_s((LPTSTR)buffer.c_str(), L + 1, sCommand + 1, idx);
					m_sName = buffer.c_str();
				}
				break;
			}
			if(symbol == '"')
				break;
			if(symbol == ':' || symbol == '=')
			{
				if(idx > 1)
				{
					_tcsncpy_s((LPTSTR)buffer.c_str(), L + 1, sCommand + 1, idx - 1);
					m_sName = buffer.c_str();
				}
				idx ++;
				break;
			}
			idx ++;
			if(idx == L && idx > 1)
			{
				_tcsncpy_s((LPTSTR)buffer.c_str(), L + 1, sCommand + 1, idx - 1);
				m_sName = buffer.c_str();
			}
		}
	}
	if(idx >= L)
		return;
	if(sCommand[idx] == '"')
		idx ++;
	int start = idx;
	while(idx < L)
	{
		if(sCommand[idx] == '"')
			break;
		idx ++;
	}
	_tcsncpy_s((LPTSTR)buffer.c_str(), L + 1, sCommand + start, idx - start);
	trim(buffer);
	m_sValue = buffer.c_str();
}

////////////////////////////////////////////////////////////////////////
// Interface Implementation;
////////////////////////////////////////////////////////////////////////

STDMETHODIMP CPSLCmdParam::get_Name(BSTR * pValue)
{
	PSL_BEGIN

	*pValue = m_sName.copy();
	
	PSL_END
}

STDMETHODIMP CPSLCmdParam::get_Value(BSTR * pValue)
{
	PSL_BEGIN

	*pValue = m_sValue.copy();
	
	PSL_END
}

STDMETHODIMP CPSLCmdParam::get_Command(BSTR * pValue)
{
	PSL_BEGIN

	*pValue = m_sCommand.copy();
	
	PSL_END
}