CStrTok Class Reference

#include <StrTok.h>

Public Member Functions
	CStrTok ()
virtual	~CStrTok ()
char *	GetFirst (char *lpsz, const char *lpcszDelimiters)
char *	GetNext (const char *lpcszDelimiters)
void	SetNext (const char *lpcszNext)
bool	IsEOB ()
void	Break ()
void	TrimLeft (char *&lpsz, const char *lpcszDelimiters=0)
void	TrimRight (const char *lpcszDelimiters=0)

Static Public Member Functions
static bool	IsDelimiter (char ch, const char *lpcszDelimiters)

Public Attributes
bool	m_bDelimiterAsToken
bool	m_bOneByOneDelimiter
bool	m_bDelimitersInSequence
char *	m_lpszNext
char	m_chDelimiter

Detailed Description

Definition at line 11 of file StrTok.h.

Constructor & Destructor Documentation

CStrTok::CStrTok

(

)

Definition at line 17 of file StrTok.cxx.

References m_bDelimiterAsToken, m_bDelimitersInSequence, m_bOneByOneDelimiter, m_chDelimiter, and m_lpszNext.

{
        m_bDelimiterAsToken = m_bOneByOneDelimiter = m_bDelimitersInSequence = false;
        m_chDelimiter = 0;
        m_lpszNext = NULL;
}

CStrTok::~CStrTok ( )

virtual

Definition at line 24 of file StrTok.cxx.

{

}

Member Function Documentation

void CStrTok::Break

(

)

Definition at line 123 of file StrTok.cxx.

References SetNext().

Referenced by GetFirst().

{
        SetNext(NULL);
}

char * CStrTok::GetFirst	(	char *	lpsz,
		const char *	lpcszDelimiters
	)

Definition at line 29 of file StrTok.cxx.

References Break(), GetNext(), and m_lpszNext.

Referenced by PndFsmDetFactory::create(), PndFsmAbsDet::parseParameterList(), and PndSimpleAnalysis::SetupAnalysis().

{
        Break();

        m_lpszNext = lpsz;
        return GetNext(lpcszDelimiters); 
}

char * CStrTok::GetNext

(

const char *

lpcszDelimiters

)

Definition at line 37 of file StrTok.cxx.

References m_bDelimiterAsToken, m_bDelimitersInSequence, m_bOneByOneDelimiter, m_chDelimiter, and m_lpszNext.

Referenced by PndFsmDetFactory::create(), GetFirst(), PndFsmAbsDet::parseParameterList(), and PndSimpleAnalysis::SetupAnalysis().

{
        if(m_lpszNext == NULL)
                return NULL;

        // return the saved delimiter
        if(m_chDelimiter != 0)
                *m_lpszNext = m_chDelimiter;

        char* lpsz = m_lpszNext;
        if(m_bDelimiterAsToken)
                // increment the next pointer to the next delimiter or token
                if(m_bDelimitersInSequence)
                {
                        int nLength = strlen(lpcszDelimiters);
                        if(memcmp(lpcszDelimiters, m_lpszNext, nLength) == 0)
                                m_lpszNext += nLength;
                        else
                                m_lpszNext = strstr(m_lpszNext, lpcszDelimiters); // may be NULL
                }
                else
                {
                        if(strchr(lpcszDelimiters, *m_lpszNext))
                                m_lpszNext++;
                        else
                                m_lpszNext += strcspn(m_lpszNext, lpcszDelimiters);
                }
        else
                if(m_bDelimitersInSequence)
                {
                        int nLength = strlen(lpcszDelimiters);
                        // increment the token pointer
                        while(memcmp(lpcszDelimiters, lpsz, nLength) == 0)
                        {
                                lpsz += nLength;
                                if(m_bOneByOneDelimiter)
                                        break;
                        }
                        // increment the next pointer after the end of the token
                        m_lpszNext = strstr(lpsz, lpcszDelimiters); // may be NULL
                }
                else
                {
                        // increment the token pointer to the start of the token
                        if(!m_bOneByOneDelimiter)
                                lpsz += strspn(lpsz, lpcszDelimiters);
                        else
                                if(strchr(lpcszDelimiters, *lpsz) && m_chDelimiter)
                                        lpsz++;
                        // increment the next pointer after the end of the token
                        m_lpszNext = lpsz + strcspn(lpsz, lpcszDelimiters);
                }
        
        if(m_lpszNext == NULL || *m_lpszNext == 0)
        {       // reach the end of the buffer
                m_chDelimiter = 0;
                m_lpszNext = NULL;
        }
        else
        {       // save the delimiter and terminate the token by null
                m_chDelimiter = *m_lpszNext;
                *m_lpszNext = 0;
        }
        if(*lpsz == 0 && !m_bOneByOneDelimiter)
                return NULL;
        return lpsz;
}

bool CStrTok::IsDelimiter ( char  ch, const char *  lpcszDelimiters  )

static

Definition at line 118 of file StrTok.cxx.

{
        return strchr(lpcszDelimiters, ch) != NULL;
}

bool CStrTok::IsEOB

(

)

Definition at line 113 of file StrTok.cxx.

References m_lpszNext.

{
        return m_lpszNext == NULL;
}

void CStrTok::SetNext

(

const char *

lpcszNext

)

Definition at line 105 of file StrTok.cxx.

References m_chDelimiter, and m_lpszNext.

Referenced by Break().

{
        if(m_chDelimiter != 0)
                *m_lpszNext = m_chDelimiter;
        m_chDelimiter = 0;
        m_lpszNext = (char*)lpcszNext;
}

void CStrTok::TrimLeft	(	char *&	lpsz,
		const char *	lpcszDelimiters = 0
	)

Definition at line 128 of file StrTok.cxx.

References m_lpszNext.

{
        if(m_lpszNext == NULL)
                return;
        if(lpcszDelimiters == NULL)
                lpcszDelimiters = " \t\r\n";
        while(strchr(lpcszDelimiters, *lpsz))
                lpsz++;
}

void CStrTok::TrimRight

(

const char *

lpcszDelimiters = 0

)

Definition at line 138 of file StrTok.cxx.

References m_lpszNext.

{
        if(m_lpszNext == NULL)
                return;
        if(lpcszDelimiters == NULL)
                lpcszDelimiters = " \t\r\n";
        char* pNext = m_lpszNext-1;
        while(strchr(lpcszDelimiters, *pNext))
                *pNext = 0, pNext--;
}

Member Data Documentation

bool CStrTok::m_bDelimiterAsToken

Definition at line 19 of file StrTok.h.

Referenced by CStrTok(), and GetNext().

bool CStrTok::m_bDelimitersInSequence

Definition at line 21 of file StrTok.h.

Referenced by CStrTok(), and GetNext().

bool CStrTok::m_bOneByOneDelimiter

Definition at line 20 of file StrTok.h.

Referenced by CStrTok(), and GetNext().

char CStrTok::m_chDelimiter

Definition at line 24 of file StrTok.h.

Referenced by CStrTok(), GetNext(), and SetNext().

char* CStrTok::m_lpszNext

Definition at line 23 of file StrTok.h.

Referenced by CStrTok(), GetFirst(), GetNext(), IsEOB(), SetNext(), TrimLeft(), and TrimRight().

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The documentation for this class was generated from the following files:

• StrTok.h
• StrTok.cxx