Solved

parse a NULL- Separated string

Posted on 2003-11-10
2
445 Views
Last Modified: 2012-06-21
Using windows "GetOpenFileName"  with the OFN_ALLOWMULTISELECT flag set returns a null seperated string.
Is there a standard routine for parsing this to extract each filename.
0
Comment
Question by:MCofer
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 86

Expert Comment

by:jkr
ID: 9719684
No, there is no such standard routine. But, writing one is not too difficult:

#include <list>
#include <string>
using namespace std;

UINT GetFilesFromMultiSelect ( char* pszMultSel, list<string>& r) {

    UINT unCount = 0;
    char* pc = pszMultSel;

    while ( strlen ( pc)) {

          r.push_back ( string ( pc)); // found a file, add it to the list of files

          pc = memchr ( pc, 0); // search for the next NULL char,

          pc++; // Advance to the next file entry ('strlen()' will return 0 at the end)

          ++unCount;
    }

     return unCount;
}
0
 
LVL 3

Accepted Solution

by:
freewell earned 125 total points
ID: 9720164
MFC way for parsing.

int nCount = 0;
CString strText;

while(AfxExtractSubString(strText,pszMultiFile,nCount++,_T(0x00)) && strText.GetLength() > 0)
{
      TRACE("File %d: %s\r\n",nCount, strText);
}
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In days of old, returning something by value from a function in C++ was necessarily avoided because it would, invariably, involve one or even two copies of the object being created and potentially costly calls to a copy-constructor and destructor. A…
C++ Properties One feature missing from standard C++ that you will find in many other Object Oriented Programming languages is something called a Property (http://www.experts-exchange.com/Programming/Languages/CPP/A_3912-Object-Properties-in-C.ht…
The viewer will learn additional member functions of the vector class. Specifically, the capacity and swap member functions will be introduced.
The viewer will be introduced to the technique of using vectors in C++. The video will cover how to define a vector, store values in the vector and retrieve data from the values stored in the vector.

688 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question