On 8/18/2015 8:01 PM, Alan BRASLAU wrote:
On Tue, 18 Aug 2015 19:42:20 +0200
Wolfgang Schuster <schuster.wolfg...@gmail.com> wrote:
why does \startchemical take the name of a instance as argument (e.g.
\startchemical[important]) when
there is no way to create it because \definechemical is redefined and
the original version isn’t saved.
Even \setupchemical[important][..,..=..,..] can’t be used because it
doesn’t resolve the parent setting.
I did not realize that \startchemical took the name of an instance as
argument - I have only used it with key=value, i.e.:
\startchemical[...=...]
I suppose that it uses some "standard" mechanisms.
\definechemical[benzene] is different. It gets used as:
\startchemical
\chemical[benzene,...]
\stopchemical
Perhaps there is some inconsistency with respect to ConTeXt syntax here.
the issue is that we have definechemical doing something different
(compatibility) but we can do this:
in chem-str.mkiv:
% \installsimplecommandhandler \??chemical {chemical} \??chemical % no
\define...
\installcommandhandler \??chemical {chemical} \??chemical % no \define...
\let\setupchemicals \setupchemical
\let\definechemicals\definechemical
then we can do:
\starttext
\definechemicals[foo][axis=on]
\startchemical[foo]
\chemical[SIX,ROT2,B,R6,SUB1,FIVE,ROT1,B][1]
\stopchemical
\stoptext
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