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/* ==========================================================================
Class : CTokenizer
Date : 06/18/04
Purpose : "CTokenizer" is a very simple class to tokenize a string
into a string array.
Description : The string is chopped up and put into an internal
"CStringArray". With "GetAt", different types of data can
be read from the different elements.
Usage : Create an instance of "CTokenizer" on the stack. Set
the string to parse in the "ctor", and the delimiter if
not a comma. The "ctor" automatically tokenize the input
string.
Call "GetSize" to get the number of
tokens, and "GetAt" to get a specific token.
You can also reuse the tokenizer by calling "Init".
========================================================================*/
#include "stdafx.h"
#include "Tokenizer.h"
////////////////////////////////////////////////////////////////////
// Public functions
//
CTokenizer::CTokenizer( CString strInput, const CString & strDelimiter )
/* ============================================================
Function : CTokenizer::CTokenizer
Description : Constructor.
Access : Public
Return : void
Parameters : CString strInput - String to
tokenize
const CString & strDelimiter - Delimiter,
defaults to
comma.
Usage : Should normally be created on the stack.
============================================================*/
{
Init(strInput, strDelimiter);
}
void CTokenizer::Init( const CString & strInput, const CString & strDelimiter )
/* ============================================================
Function : CTokenizer::Init
Description : Reinitializes and tokenizes the tokenizer
with "strInput". "strDelimiter" is the
delimiter to use.
Access : Public
Return : void
Parameters : const CString & strInput - New string
const CString & strDelimiter - Delimiter,
defaults to
comma
Usage : Call to reinitialize the tokenizer.
============================================================*/
{
CString copy( strInput );
m_stra.RemoveAll();
int nFound = copy.Find( strDelimiter );
while(nFound != -1)
{
CString strLeft;
strLeft = copy.Left( nFound );
copy = copy.Right( copy.GetLength() - ( nFound + 1 ) );
m_stra.Add( strLeft );
nFound = copy.Find( strDelimiter );
}
m_stra.Add( copy );
}
int CTokenizer::GetSize( ) const
/* ============================================================
Function : CTokenizer::GetSize
Description : Gets the number of tokens in the tokenizer.
Access : Public
Return : int - Number of tokens.
Parameters : none
Usage : Call to get the number of tokens in the
tokenizer.
============================================================*/
{
return m_stra.GetSize();
}
void CTokenizer::GetAt( int nIndex, CString & str ) const
/* ============================================================
Function : CTokenizer::GetAt
Description : Get the token at "nIndex" and put it in
"str".
Access : Public
Return : void
Parameters : int nIndex - Index to get token from
CString & str - Result
Usage : Call to get the value of the token at
"index".
============================================================*/
{
if( nIndex < m_stra.GetSize() )
str = m_stra.GetAt( nIndex );
else
str = _T( "" );
}
void CTokenizer::GetAt( int nIndex, int & var ) const
/* ============================================================
Function : CTokenizer::GetAt
Description : Get the token at "nIndex" and put it in
"var".
Access : Public
Return : void
Parameters : int nIndex - Index to get token from
int & var - Result
Usage : Call to get the value of the token at
"index".
============================================================*/
{
if( nIndex < m_stra.GetSize() )
var = _ttoi( m_stra.GetAt( nIndex ) );
else
var = 0;
}
void CTokenizer::GetAt( int nIndex, WORD & var ) const
/* ============================================================
Function : CTokenizer::GetAt
Description : Get the token at "nIndex" and put it in
"var".
Access : Public
Return : void
Parameters : int nIndex - Index to get token from
WORD & var - Result
Usage : Call to get the value of the token at
"index".
============================================================*/
{
if( nIndex < m_stra.GetSize() )
var = static_cast< WORD >( _ttoi( m_stra.GetAt( nIndex ) ) );
else
var = 0;
}
void CTokenizer::GetAt( int nIndex, double & var ) const
/* ============================================================
Function : CTokenizer::GetAt
Description : Get the token at "nIndex" and put it in
"var".
Access : Public
Return : void
Parameters : int nIndex - Index to get token from
double & var - Result
Usage : Call to get the value of the token at
"index".
============================================================*/
{
char *stop;
if( nIndex < m_stra.GetSize() )
var = _tcstod( m_stra.GetAt( nIndex ), &stop );
else
var = 0.0;
}
void CTokenizer::GetAt( int nIndex, DWORD & var ) const
/* ============================================================
Function : CTokenizer::GetAt
Description : Get the token at "nIndex" and put it in
"var".
Access : Public
Return : void
Parameters : int nIndex - Index to get token from
DWORD & var - Result
Usage : Call to get the value of the token at
"index".
============================================================*/
{
if( nIndex < m_stra.GetSize() )
var = static_cast< DWORD >( _ttoi( m_stra.GetAt( nIndex ) ) );
else
var = 0;
}
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45 years old, married, three kids.
Started with computers more than 20 years ago on a CBM-64.
Read Theoretical Philosophy at the University of Lund.
Working as a C++ consultant developer.
Science-fiction freak. Enjoy vintage punkrock.
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