How to parse out ISBN-13 from html
I tried parsing out the ISBN-13 starting at "ISBN-13". I think the "-" might have made the parse not work.
I tried putting in a "\" before the "-". But that didn't work etiher.
How can I legislate for the "-"?
As a workaround I'm choosing a string before it. But this could result in errors.
Here is what I am trying.