You saved my day !

Le 3 oct. 2010 à 17:52, Wolfgang Schuster a écrit :

> 
> Am 29.09.2010 um 13:13 schrieb Pierre-François Bonnefoi:
> 
>> Hello,
>> 
>> I'use extensively context to write my lecture notes and for all of my 
>> printing needs.
>> 
>> For my students, I've made some lecture presentations in color, and I print 
>> them in black&white, with four pages on one page for the handout.
>> 
>> I would like to compute a correct Table of contents according to the handout 
>> : so to divide the current page number by four to get a correct page number 
>> for the handout.
>> 
>> \def\ChapterPrefix#1{\the\numexpr#1/4 \relax}
>> \setupcombinedlist[content][level=1]
>> \setuplist[chapter][after=,before=,numbercolor=yellow,numbercommand=\underbar,pagecommand=\ChapterPrefix]
>> 
>> That doesn't work, and I've some difficulties to figure how computation is 
>> performed in e-TeX...
>> 
>> Could you help me to resolve this issue ?
> 
> A very dirty hack:
> 
> \setuppapersize[A6][A6]
> 
> \let\normaltranslatednumber\translatednumber
> 
> \def\translatednumber[#1]%
>  {\number\numexpr(\normaltranslatednumber[#1]+1)/4\relax}
> 
> \starttext
> 
> \completecontent
> 
> \dorecurse{12}
>  {\chapter{Chapter #1}
>   \dorecurse{#1}{\input knuth\par}}
> 
> \stoptext
> 
> Wolfgang
> 
> ___________________________________________________________________________________
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> 
> maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
> webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
> archive  : http://foundry.supelec.fr/projects/contextrev/
> wiki     : http://contextgarden.net
> ___________________________________________________________________________________

___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the 
Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
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