Nikolai Grigoriev
All examples in the XSL spec refer to an FO processor. While you can
can (and should) calculate most values in XSLT, there are cases where
the exact value of a property can only be found during the formatting.
Examples: content-width="max(2in, 50%)" Width of an image should be 2 inches or 50% of the parent reference
area width, whichever is greater. The width of an area is
calculated
during formatting, and depends on page width; you cannot
get it in XSLT. Padding is equal to the current font size, plus 3 points.
While it is possible
to calculate the font size in a given point in XSLT, it is
hardly worth
doing: you have to cope with inheritance. > The reason I am confused is because the example given inside section
> 5.10.1 uses units inside the function's argument which is giving
> the FO processor a real hard time. Not necessarily. An XSL FO processor knows length units, and has
no problems dividing them. | 
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