Hello again

So here is part of my Table of Contents CSS, I believe pretty common:

content: leader("" "") target-counter(attr(data-topicidbegin), page) "" - "" target-counter(attr(data-topicidend), page);

Each topic has a 'topicidbegin' and 'topicidend'

The problem is 'topicidbegin' has 'page-break-before: right', which means a blank page is sometimes inserted so it starts on an odd page number.

This results in an output similar to this:

Topic A: Page 1-9
Topic B: Page 11-20

I want Topic A to include the blank page; basically show 1-10.

I have a couple ideas but don't know if any are possible:

Can we increment custom counters on each page? I could just have a custom counter that I increment by 2 on each even page, since my topics should always end on an even page.

Can any math be done in the 'content' CSS property? I tried using 'calc()' there but I don't think that's valid there. If I can do math I could probably find a way to do this, or at least subtract one page from the beginning of the next topic.

Thanks for your help

Edited 11 Nov 2015 by barrett777

Oh nevermind, looks like I can do this with Prince script: http://www.princexml.com/doc/script-func/

I'll try to get it working with that

Edit: It works! And this will be helpful for other odd requests, thanks

Edited 11 Nov 2015 by barrett777