MFC 함수를 이용해서 간단히 서브스트링 얻기

This global function can be used to extract a substring from a given source string.

BOOL AFXAPI AfxExtractSubString ( CString& rString, LPCTSTR lpszFullString, int iSubString, TCHAR chSep = '\n' );

샘플 코드

// The following example extracts a series of name, value pairs from a

// given source string:

// Input string consisting of a number of name, value pairs

LPCTSTR lpszSource = _T("\"Name\"=\"John Smith\"\n")

   _T("\"Company\"=\"Contoso, Ltd\"\n\"Salary\"=\"25,000\"");

CString strNameValue; // an individual name, value pair

int i = 0; // substring index to extract

while (AfxExtractSubString(strNameValue, lpszSource, i))

{

   // Prepare to move to the next substring

   i++;

   CString strName, strValue; // individual name and value elements

   // Attempt to extract the name element from the pair

   if (!AfxExtractSubString(strName, strNameValue, 0, _T('=')))

   {

      // Pass an error message to the debugger for display

      OutputDebugString(_T("Error extracting name\r\n"));

      continue;

   }

   // Attempt to extract the value element from the pair

   if (!AfxExtractSubString(strValue, strNameValue, 1, _T('=')))

   {

      // Pass an error message to the debugger for display

      OutputDebugString(_T("Error extracting value element\r\n"));

      continue;

   }

   // Pass the name, value pair to the debugger for display

   CString strOutput = strName + _T(" equals ") + strValue + _T("\r\n");

   OutputDebugString(strOutput);

}