Solved

How can I split a string by a string delimeter in MFC?

Posted on 2009-05-08
10
1,331 Views
Last Modified: 2013-11-20
Hi all,

I have the need to split a string by a specified string, ie...

   Hello<->Everyone<-><->How<->Are You

based on the delimeter '<->' needs to produce the following array:

   a[0] = 'Hello'
   a[1] = 'Everyone'
   a[2] = ''
   a[3] = How
   a[4] = Are You

Can anyone help?

Thanks,

James
0
Comment
Question by:jatkin
  • 3
  • 3
  • 2
  • +1
10 Comments
 
LVL 3

Expert Comment

by:janjerell
ID: 24334232
HI Try this:


string s2 = "Hello<->Everyone<-><->How<->Are You";

string[] a = s2.Split(new string[] { "<->" },StringSplitOptions.None);

Open in new window

0
 
LVL 19

Expert Comment

by:alb66
ID: 24334249
MFC has no specific methods.
You can use strtok():
http://msdn.microsoft.com/en-us/library/2c8d19sb(VS.71).aspx
0
 
LVL 4

Author Comment

by:jatkin
ID: 24334250
Sorry, this is an MFC issue - sadly the above is not possible :-(
0
 
LVL 4

Author Comment

by:jatkin
ID: 24334269
the above response was in response to janjerell's comment.

alb66, the problem i have with the strtok functions is that they ignore multiple delimeters and do not return blank entries as above...
0
 
LVL 19

Expert Comment

by:alb66
ID: 24334292
Yes yor are right...
You need to write your own function:
CString CUtility::ExtractString ( CString& stringa, BOOL* pbLast, const CString& strSepa )

{

	BOOL bLast;
 

	CString  str;

	int pos = stringa.Find( strSepa );

	if( pos != -1 )

	{

		str = stringa.Left( pos );

		stringa = stringa.Mid( pos + strSepa.GetLength() );

		bLast = FALSE;

	}      

	else

	{

		str = stringa;

		bLast = TRUE;

	}
 

	if ( pbLast != NULL )

		*pbLast = bLast;
 

	return str;

}
 
 
 

CString strTest( "Hello<->Everyone<-><->How<->Are You" );

CStringArray vstr;
 

BOOL bLast = !strTest.IsEmpty();

while ( !bLast )

  vstr.Add( CUtility::ExtractString ( strTest, &bLast, "<->" ));

Open in new window

0
Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

 
LVL 31

Accepted Solution

by:
Zoppo earned 500 total points
ID: 24334294
Hi jatkin,

attached you can find a function which does it. Just call it like this:

> CString strText = "Hello<->Everyone<-><->How<->Are You";
> CStringArray tokens;
> ParseTokens( strText, "<->", tokens );

Hope that helps,

ZOPPO
void

ParseTokens( CString strString, CString strDelimiter, CStringArray& tokens )

{

	int iNum = 0;
 

	int iCurrPos= 0;
 

	while( -1 != ( iCurrPos = strString.Find( strDelimiter ) ) )

	{

		tokens.Add( strString.Left( iCurrPos ) );
 

		strString = strString.Right( strString.GetLength() - iCurrPos - strDelimiter.GetLength() );

	}
 

	tokens.Add( strString );

}

Open in new window

0
 
LVL 3

Expert Comment

by:janjerell
ID: 24334296
oh sorry.. didn't notice it was MFC...
0
 
LVL 31

Expert Comment

by:Zoppo
ID: 24334307
ehm sorry, the function has a little failure - the first line 'int iNum' is not needed, you can delete it ...
0
 
LVL 4

Author Closing Comment

by:jatkin
ID: 31579354
Perfect, thanks!!!
0
 
LVL 31

Expert Comment

by:Zoppo
ID: 24334457
You're welcome - I'm glad I could help.

Have a nice day,

best regards,

ZOPPO
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

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

Suggested Solutions

Introduction: Load and Save to file, Document-View interaction inside the SDI. Continuing from the second article about sudoku.   Open the project in visual studio. From the class view select CSudokuDoc and double click to open the header …
Introduction: Finishing the grid – keyboard support for arrow keys to manoeuvre, entering the numbers.  The PreTranslateMessage function is to be used to intercept and respond to keyboard events. Continuing from the fourth article about sudoku. …
This video will show you how to get GIT to work in Eclipse.   It will walk you through how to install the EGit plugin in eclipse and how to checkout an existing repository.
This tutorial demonstrates a quick way of adding group price to multiple Magento products.

932 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

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now