Am 03.09.2011 um 02:46 schrieb Mojca Miklavec:
> Dear gurus,
>
> This question concerns both MKII and MKIV (I need the functionality in
> both, even though I will try to rewrite the MKIV part as soon as I
> have time).
>
> I have a command:
> \mycommand[a][newparam=value]
> with more or less the following definition:
> \def\mycommand[#1][#2]{%
> \getparameters[@@mycommand@#1@][#2]
> % ... some extra code ...
> }
>
> However I used to use
> \mycommand[a][oldparam=value]
> and now I would like to switch the syntax to
> \mycommand[a][newparam=value]
> but I would like the oldparam to keep working normally.
>
> I will read the value with \@@mycommand@a@newparam.
>
> My question: what is the most elegant value to do that?
>
> I can imagine something like
> \def\mycommand[#1][#2]{%
> \undefinecommand\@@mycommand@a@oldparam % pseudocode
> \getparameters[@@mycommand@#1@][#2]
> \doifdefined{\@@mycommand@a@oldparam}
> \let\@@mycommand@a@newparam\@@mycommand@a@oldparam
> % ... some extra code ...
> }
>
> but there is most probably some more elegant solution to that?
MkIV:
\definenamespace
[mojca]
[type=module,
name=mojca,
command=yes,
setup=yes,
parent=mojca]
\starttext
\setupmojca
[oldkey=OLD,
newkey=\mojcaparameter{oldkey}]
\starttabulate
\NC Old \EQ \mojcaparameter{oldkey} \NC\NR
\NC New \EQ \mojcaparameter{newkey} \NC\NR
\stoptabulate
\setupmojca
[newkey=NEW]
\starttabulate
\NC Old \EQ \mojcaparameter{oldkey} \NC\NR
\NC New \EQ \mojcaparameter{newkey} \NC\NR
\stoptabulate
\stoptext
Wolfgang
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