How to select a email in QTextEdit

[ng2b30]

I want to select the email in a QTextEdit widget and then highlight each email . But I found that select() funciton only support 4 types: Document, BlockUnderCursor, LineUnderCursor and WordUnderCursor.

So, is there any other way can only select an email?

My input example in QTextEdit is

email@abc.com , b@acb.com

I know that I can use QTextCursor to select the text .

QTextCursor tc = ui->textEdit->textCursor();
    tc.select(QTextCursor::WordUnderCursor);
    QString text = tc.selectedText();

QTextCursor tc = ui->textEdit->textCursor();
    tc.select(QTextCursor::WordUnderCursor);
    QString text = tc.selectedText();

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using email@abc.com, b@acb.com as an example, it would return email , abc, com , b , acb ,com.
I want to return the text like email@abc.com and b@acb.com.

How can I do that? Please give me some helps. Thanks!