Allow programing constructs in PDF export stylesheet

We can use following css style to separate pages based on page title.

div.pagetitle {
  page-break-before:always;
}

This separates all the Confluence pages in the exported PDF with a pagebreak i.e. every Confluence page starts on a new PDF page. But if I have a hierarchy of pages; like this:

Home
|
+
|
+--A
|  |
|  +--A1
|  |  |
|  |  +--A11
|  |
|  +--A2
|  B
|  |
|  +--B1

I propose that something like this should be allowed in the PDF export style:

#if($page.parent.homePage)
div.pagetitle {
  page-break-before:always;
}
#end