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From: siepo@client44-3.kabelA.oprit.rug.nl
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Subject: Re: list-like environments
Date: Wed, 9 Aug 2000 20:45:35 +0200 (CEST)
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Hans Hagen writes:
 > At 10:14 PM 8/8/00 +0200, siepo@client44-3.kabelA.oprit.rug.nl wrote:
 > >What is the Context analogue for the LaTeX \newenvironment? And is
 > 
 > There is \definestartstop; for usage see the exampe i made for wybo. 
 > 
 > \setuplayout[width=100mm]
 > 
 > \let\normalbegin\begin     
 > 
 > \let\complexbegin\normalbegin          
 > 
 > \def\simplebegin#1%
 >   {\getvalue{start#1}\bgroup
 >    \def\end##1{\egroup\getvalue{stop##1}}}
 > 
 > \definecomplexorsimple \begin           
 > 
 > \definedescription
 >   [description]
 >   [location=hanging, 
 >    margin=standard,
 >    headstyle=bold]
 > 
 > \definestartstop
 >   [descriptions]
 >   [before=\blank\startpacked,
 >    after=\stoppacked\blank,
 >    commands=\let\item\description]  
 > 
 > \starttext 
 > 
 > \dorecurse{10}{This one is for Wybo. }
 > 
 > \startdescriptions
 > 
 > \description {aap:} is a monkey, but much more can be told
 > about this animal;s for example they are hairy, mostly
 > brown or black and they resemble people a lot. 
 > 
 > \item {noot:} is a vegetable; again there are many kinds
 > and you will get very fat if you eat lots of them. 
 > 
 > \startdescription {this is a rather long item:} 
 > 
 > it is not very interesting in itself, but gives me the
 > opportunity to tell you something about the description
 > environment: it is like an itemize, but with user-supplied
 > labels which are printed bold. 
 > 
 > \stopdescription
 > 
 > \stopdescriptions
 > 
 > \dorecurse{10}{This one is for Wybo. }
 > 
 > \begin{descriptions}
 > 
 > \item {aap:} is a monkey, but much more can be told
 > about this animal;s for example they are hairy, mostly
 > brown or black and they resemble people a lot. 
 > 
 > \item {noot:} is a vegetable; again there are many kinds
 > and you will get very fat if you eat lots of them. 
 > 
 > \item {this is a rather long item:} it is not very
 > interesting in itself, but gives me the opportunity to tell
 > you something about the description environment: it is like
 > an itemize, but with user-supplied labels which are printed
 > bold. 
 > 
 > \end{descriptions}
 > 
 > \dorecurse{10}{This one is for Wybo. }
 > 
 > \stoptext 
 > 
 > 
 > 
 > 
 > >there something like defineitemize[name][parameters]?
 > 
 > Not yet, but it's on my to do list, since I sometimes need it too. 
 > 
 > Hans
 > -------------------------------------------------------------------------
 >                                                   Hans Hagen | PRAGMA ADE
 >                       Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
 >  tel: +31 (0)38 477 53 69 | fax: +31 (0)38 477 53 74 | www.pragma-ade.com
 > -------------------------------------------------------------------------
 > 

The example above seems to illustrate rather more points than
just \definestartstop. Nevertheless, thanks.

Another point: is somebody willing to take the trouble to give me a
complete rundown of all the parameters of \setupitemize and
\setupenumerations? I have been playing around a bit with these
commands but am not making much headway; many parameters don't seem to
have any effect at all.

In particular, I want to make numbered and bulleted lists in which the
number or bullet is formatted as a run-in head, and items are
separated by vertical space.

Siep