On Wed, 22 Jun 2011, Stefan Müller wrote:

> Hi list,
>
> in one of my documents (MkIV) I defined several different enumerations with 
> \defineenumerations.  Currently their only differences are in the values of 
> "text=" and "style=".  With the following I got what I wanted so far:
>
> \defineenumeration[lemma][text=Lemma, location=serried, width=fit, 
> style=slanted, indenting=yes, prefix=yes, prefixsegments=chapter, 
> indentnext=no]
>
> \starttext
> \startlemma
> 	Some slanted text.
> \stoplemma
> \stoptext
>
> Results in "Lemma 1  Some slanted text", head in bold and the text slanted.
>
> But now I have some lemmata that should get some kind of title, for example:
> "Lemma 1 (Farkas Lemma)  Some slanted text."
>
> How can I achieve this without defining a new description for every "special 
> case"?  I tried something like "\startlemma[right={My title}]" without avail. 
> I want the "title", "(Farkas Lemma)" in the above example, to be placed 
> before the added "distance".  In addition I would like to be able to set 
> (within \definedescription for all lemmata would be enough) whether I want 
> the "title" to be bold (like the head "Lemma 1") or not.  Is all or some of 
> this possible?

\defineenumeration[lemma][title=yes]

\startlemma {Farkas Lemma} ...
...
\stoplemma

> I'm pretty confident that ConTeXt can already handle this, 
> but I don't know how.

Have you seen http://www.ntg.nl/maps/36/09.pdf?

Aditya