Start with ^https? and escape the points, which means \. in Scaffold or \\. in the textfile directly.

Make another (nested) check for getSearchResults(doc, true).

I guess this leads also to a lot of misclassifications, because all other websites from the domain will return book, e.g. http://www.oxfordreference.com/page/law-subject/law but also simply http://www.oxfordreference.com/

Is it enough to filter on url.indexOf('/view/')>-1?

Why do you need two xpaths here? This is IMO fragile because the elements of the two xpaths could be numbered differently...

I did this because with the first XPath only the tile of the word we searched was visible. For eg, I searched Shalimar the Clown and all the entries in the pop up had Salman Rushdie as the title. So I used the second XPath to concatenate the name of the book from where the reference came to make it easier for the user to choose which one to save.

I think it would then be better to try something like:

var rows = ZU.xpath(doc, '//span[@class="titlePart"]');
...
   var href = ZU.xpathText(rows[i], './a/@href');
   var title = ZU.trimInternal(rows[i].textContent);

(Note: this is untested code.)

The two spans have different class ids. I will check this though.

Okay, I looked closer now.

How about the xpath

var rows = ZU.xpath(doc, '//h3[@class="source"]/a[span[@class="title"]]');

?

This xpath is giving the title as the book title(and not the section) in the pop-up window and the href is the book section page.

You can do this directly (because ZU.xpathText is a nice function), i.e.

item.edition = ZU.xpathText(doc, '//meta[@property="http://schema.org/bookEdition"]/@content');

Shouldn't this be just "Accutane"?

The title of the containing book should also be saved, i.e. here it should be "A-Z of Plastic Surgery".

For chapters we should also save the title of the book. This seems missing here.

That is IMO fine, but maybe add the three dots as well...

We should clean the title such that the output is without the " - Oxford Reference".