String Parsing using known delimiters? [C++]

[Shaitan00]

The age old issue of string parsing comes up again ...
I have a text file that contains lines that are SUPPOSED to follow a set format, specifically:
string, string, long string int string double int

The delimiters are therefore:
Comma (,) for the first two fields
Spaces for all other fields

Strings like this would be valid:
Jon, Jack, 100 CPN 5 KTE 1.00 10
Jon, Jack 100 CPN 5 KTE 1.00 10 // notice the extra spaces

Whereas something like these would be considered invalid:
Jon Jack 100 CPN 5 KTE 1.00 10 // missing the commas
Jon, Jack, 100 CPN 5 KTE 1.00 // missing the last field "10"
Jon, Jack, 100CPN 5 KTE 1.00 10 // missing space between "100" and "CPN"

The goal is to EXTRACT each section and store them, and if possible determine when a string is INVALID (does not follow format).
I have a class with the following data members:

class A
{
private:
	// Record
	string A
	string B
	long C;
	string D;
	string E;
	string F;
	double G;
	int H;

public:
	A(string sLine);	// constructor
};

A::A(string sLine)
{
	// somehow parse the string here and determine if it is valid //
}

So, how can I parse the string (sLine) and extract each piece into there components (A, B, C, D, E, F, G, H)...
I was thinking of using the old method of simply doing substring searches but I find it very error prone and long ... is there a better way to accomplish this?

Anything anyone would recommend?
Any help would be much appreciated...
Thanks,

[monkey_king]

What would your rule be for definingen when a token/line is invalid?
I would check the the number of tokens in each class is first 2, then 8

Or do you want a more elaborate check?

[kvprajapati]

Shaitan00,

I think you are working on a code. It's too early to comment on your work.

>how can I parse the string>
Use find and substr methods.

[mvmalderen]

You'll find this code snippet helpful :)
(If you're not allowed to use vectors, you can always adapt it to use an array)

Or use strtok.

You can find many solutions for this on codeproject.com, i.e. http://www.codeproject.com/KB/recipes/Tokenizer.aspx or http://www.codeproject.com/KB/recipes/stringtok.aspx