Re: DocBook - trouble with 'em' unit

Hi Stefan,

> i have this message from the jfor processor "can't convert to the 'em'
> unit" ...

That's correct, jfor does not currently support "em" units.

The current mechanism for units conversion is fairly simple 
(src/org/jfor/jfor/converter/FoUnitsConverter.java) and easy to extend 
to new units, but I'm not sure if the RTF format supports units like 
"em" which is a dimension that is relative to the current font size, 
I'd have to check.

Currently, all units conversions output measurement in "twips" which is 
an absolute measurement in RTF.

So, to support "em" units one should

a) find out if and how RTF supports relative units

b) modify the FoUnitsConverter class to convert "em" measurements to 
these units if they exist.

c) if relative units are not natively supported in RTF, write a 
context-sensitive conversion that takes the current font into account 
when converting units.

Hope this helps, but unfortunately there is no immediate solution.

--
   Bertrand Delacretaz (codeconsult.ch, jfor.org)
   XML, java, XSLT, Cocoon, FOP, mentoring/programming/teaching



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