orphan-count widow-count

[Jany Quintard <quintard.j@xxxxxx>]

Hi all
In the spec (12.6.6. Paragraph Flow Object Class) I find this :

 widow-count:  is a positive integer specifying the minimum number of
              lines of the paragraph that shall be kept together at
              the beginning of an area.  If the widow-count:  is n,
              then no break shall be allowed between the last n lines
              of the paragraph.  The initial value is 2.

 orphan-count:  is a positive integer specifying the minimum number of
               lines of the paragraph that shall be kept together at
               the end of an area.  If the orphan-count:  is n, then
               no break shall be allowed between the first n lines of
               the paragraph.  The initial value is 2.

But this does not seem to work when I output PDF files. I browsed the
archive and Norman Walsh stylesheets, looking for orphan and widow,
but did not find any hints. I looked at the current Jade limitations
too, without success. 
Is someone using these characteristics ?
How does it work ?

TIA. Jany
               
--------------------------------------------------------------------------
Jany Quintard        | Det finns så mycket saker jag skulle sagt och gjort
IBM Paris Laboratory | och det är så väldigt lite jag gjorde.
33 (0)2 51 16 40 36  |                Tove Jansson (Höstvisan).


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