C++ Extracting url from string problem

Hey, how would you extract a URL and another string from a string? I believe you use the find string, however how can you stop until '.com' do you have to use the substring method where you count the lenth of the url or can you combine 2 finds? e.g. find 'http://' and '.com'?

for instance:

Code:

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string hyperlink = "<a href=http://www.ilovedonuts.com>Donut World!!</a>";

findurl = hyperlink.find("http://");
...
....
.....

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Thanks

Analize this code:

Code:

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string hyperlink = "<a href=http://www.ilovedonuts.com>Donut World!!</a>";
string beginStr = "http://", endStr = ".com";
unsigned int beginPos = hyperlink.find(beginStr), endPos = hyperlink.find(endStr), invalidPos = hyperlink.npos;
if (beginPos != invalidPos && endPos != invalidPos && endPos > beginPos)
{
    unsigned int urlLen =  endPos - beginPos + endStr.length();
    string urlStr = hyperlink.substr(beginPos, urlLen);
    cout << "Found URL " << urlStr;
}
else
{
    cout << "No valid URL found";
}

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