partial searching of an attribute value using xpath

Question

I want to search for a partial value of the attribute and not the whole of a specific node. I do not know how to do it. You are appreciated in advance for your kind help. E.g: I want to search for all "book"s in this XML document in which the attribute value of "isbn" is started with "00-05" disregarding the rest:

<book isbn="00-05-100-00"></book>

<book isbn="00-05-120-35"></book>

<book isbn="00-16-456-01"></book>

Answer 1

There is starts-with function in XPath that you can use:

//book[starts-with(@isbn, '00-05')]