string manipulation question

monsieur_jj

Hi all, How do I know the number of occurences of a character from a string for example the "@" sign from email@email@email.com. I need to validate email addresses. Thanks, Jayjay

Michael Schubert

Count them. Seriously though, are you kidding? After more than a year of asking programming questions here you can't figure this out by yourself? You should consider a career change.

modified on Thursday, October 16, 2008 5:29 AM

Rajesh R Subramanian

monsieur_jj wrote:

I need to validate email addresses.

You need to validate the email address to have one and only one '@' character? OK, this code will do that:

const char *szEmail= "myname@mydoma@in.com";
strchr(szEmail,'@')?strchr(strchr(szEmail,'@')+1,'@')?cout<<"Invalid!":cout<<"Valid!":cout<<"Invalid!!";

Program Output: Invalid! Error checking and any dodgy stuff must be handled by *you* of course. :-\

Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche .·´¯`·->Rajesh<-·´¯`·. [Microsoft MVP - Visual C++]

CPallini

Call iteratively strchr [^]. :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]

Rajesh R Subramanian · modified on Thursday, October 16, 2008 5:29 AM

Michael Schubert: CodeProject's official career counselor. :laugh:

Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche .·´¯`·->Rajesh<-·´¯`·. [Microsoft MVP - Visual C++]

SandipG · modified on Thursday, October 16, 2008 5:29 AM

Michael Schubert wrote:

You should consider a career change.

Any suggestions??

Regards, Sandip.

Michael Schubert

He he. I think not. John Simmons is much better at that. ;)

Michael Schubert

This could get ugly. Maybe switching to Visual Basic?

Cedric Moonen

Michael Schubert wrote:

Maybe switching to Visual Basic?

Oh my God... You are the worst job counselor I have ever seen :rolleyes:

Cédric Moonen Software developer
Charting control [v1.5] OpenGL game tutorial in C++

Michael Schubert

I know. ;P

CPallini

Yes, of course [^]. :-D

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]

SandipG

That is interesting .. May be it will suit him.. BTW: Looks like this is another crime of THHB. :D

Regards, Sandip.

CPallini

SandipG :) wrote:

BTW: Looks like this is another crime of THHB.

Another one here [^]. :-D

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]

David Crow

You could try:

string strEmail = "email@email@email.com";
count(strEmail.begin(), strEmail.end(), '@');

"Love people and use things, not love things and use people." - Unknown

"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch