stringutils.cpp

字符拆分的小程序

// StringUtils.cpp: implementation of the StringUtils class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
//#include "RWExcel.h"
#include "StringUtils.h"
#include <afxtempl.h>

// #ifdef _DEBUG
// #undef THIS_FILE
// static char THIS_FILE[]=__FILE__;
// #define new DEBUG_NEW
// #endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

StringUtils::StringUtils()
{

}

StringUtils::~StringUtils()
{

}
//------------------------
// SplitString in MFC
//------------------------
int StringUtils::SplitString(const CString& input, 
  const CString& delimiter, CStringArray& results)
{
  
  int iPos = 0;
  int newPos = -1;
  int sizeS2 = delimiter.GetLength();
  int isize = input.GetLength();

  CArray<INT, int> positions;

  newPos = input.Find (delimiter, 0);

  if( newPos < 0 ) { return 0; }

  int numFound = 0;

  while( newPos > iPos )
  {
    numFound++;
    positions.Add(newPos);
    iPos = newPos;
    newPos = input.Find (delimiter, iPos+sizeS2+1);
  }

  for( int i=0; i <= positions.GetSize(); i++ )
  {
    CString s;
    if( i == 0 )
      s = input.Mid( i, positions[i] );
    else
    {
      int offset = positions[i-1] + sizeS2;
      if( offset < isize )
      {
        if( i == positions.GetSize() )
          s = input.Mid(offset);
        else if( i > 0 )
          s = input.Mid( positions[i-1] + sizeS2, 
                 positions[i] - positions[i-1] - sizeS2 );
      }
    }
    if( s.GetLength() > 0 )
      results.Add(s);
  }
  return numFound;
}