upload

[Hans Hagen via ntg-context <ntg-context@ntg.nl>]

Hi,

I cleaned up some more backend code.  There were some mails about dates 
and such and although the date field in setupinteraction works ok a more 
drastic overload is doen with directives. The reason is that the fact 
that we can set the date (and traler) is only because it permits 
generating pdf files that can be compared. No date as a bad idea anyway.

\setupinteraction[title=My Title]
% \enabledirectives[backend.date=2034-06-07]
\enabledirectives[backend.date=no]
\enabledirectives[backend.trailerid=no]
\starttext

\startTEXpage
     \blackrule[height=1cm,depth=0cm,width=4cm,color=darkred]
\stopTEXpage

(there always were command line options for it)

More interesting is asome new experimental code:

\starttext

\dostepwiserecurse{40}{110}{2}{
     \startTEXpage[offset=4mm,width=#1mm,align={stretch,normal,tolerant}]
         \showmakeup[penalty]%
         \orphanpenalties 4 4000 3000 2000 1000\relax
         \updateparagraphpenalties
         \samplefile{tufte}
         \par
     \stopTEXpage
}

\stoptext

it's an addendum to the widowpenalties and clubpenalties introduced by 
etex but this time it's horizontal; the orphan penalties will be 
inserted before spaces (aka spaceskip, xspaceskip and zerospaceskip 
glue) so in this case 4000 between the last two 'words' and this 
trickery can be used to make sure that the last line is not too short

         \orphanpenalties 4 4000 3000 -12000 1000\relax

is also intereting

it's work in progress (i need to play more with it and figure out nice 
values for context) .. there might be more such 'simple' useful tricks

Mikael: you can test the math cheat (doesn't make the font nicer).
Pablo : transparencies should work again (wrong alias fixed).
Michal: you can check the dates (as for sure i messed up something).

Hans

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
        tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
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