Split string (CString version) _null

To split a string based on multiple delimiters

SOURCE string

Seprator Separator

Number of substrings after count split

Return value: Split substring

cstring* Extractstr (LPCTSTR source, LPCTSTR seprator, int *count)

{
	int		isubstringcount,nindex=0;
	CString strsource=source,strseperator=seprator,*pstrsubstrings;

	if (Strseperator.getlength () ==0)
	{
		*count=0;
		return NULL;
	}

	All the delimiters in the seprator are replaced by the first one, and the number of seprator in the source is counted
	isubstringcount =1;

	for (int i=0;i<strsource.getlength (); i++)
	{
		if (strsource[i]==strseperator[0))
			isubstringcount+ +;
	}

	for (int i=1;i<strseperator.getlength (); i++)
	{
		isubstringcount+=strsource.replace (strseperator[i), Strseperator[0]);
	}

	Pstrsubstrings=new Cstring[isubstringcount];

	int nnewindex,ncount=0;
	while (Nindex<strsource.getlength ())
	{
		nnewindex=strsource.find (strseperator[0],nindex);
		if (nnewindex>=0)
			pstrsubstrings[ncount++]=strsource.mid (nindex,nnewindex-nindex);
		else
			Pstrsubstrings[ncount++]=strsource.mid (nindex);

		NINDEX+=PSTRSUBSTRINGS[NCOUNT-1]. GetLength () +1;
	}

	*count=isubstringcount;
	return pstrsubstrings;
}

Free memory

void Freestrings (CString *lpstr, int count)
{
	if (Lpstr==null | | count<=0)
	{return
		;
	}

	Delete[] LPSTR
}

Example:

CString strsample=text ("Aa,bb,cc,dd");
int ncount=0;
CString Psubstrings=extractstr (Strsample,text (","), &ncount);

....
Freestrings (Psubstrings,ncount)///free memory after using substring