Am 21.04.2011 um 13:35 schrieb luigi scarso:
> On Thu, Apr 21, 2011 at 1:32 PM, Wolfgang Schuster
> <[email protected]> wrote:
>>
>> Am 21.04.2011 um 12:28 schrieb Verhaag, G.C.H.M.:
>>
>> Hi,
>>
>> I try this example from the wiki page System Macros/Argument handling:
>>
>> \def\dodefinesomething[#1][#2]%
>> {\getparameters[\??xx#1][#2]}
>>
>> \def\definesomething%
>> {\dodoubleargumentwithset\dodefinesomething}
>>
>> \starttext
>> \definesomething[alfa][variable=test]
>> \stoptext
>>
>>
>> Running this yields
>>
>> ! Undefined control sequence
>>
>> I'm trying to write a few macros with optional delimited arguments with
>> key-value sets and started reading the appropriate pages, but can't figure
>> out why this example fails to run.
>>
>> Anybody any idea?
>>
>> I guess the message comes from your namespace which is in this form
>> only allowed in unprotected mode, to enter you need \unprotect before
>> and \protect after your command declarations
>
>
>
> ! Undefined control sequence.
>
> system > tex > error on line 8 in file test.tex: Undefined
> control sequence ...
>
> 1 \unprotect
> 2 \def\definesomething%
> 3 {\dodoubleargumentwithset\dodefinesomething}
> 4 \def\dodefinesomething[#1][#2]%
> 5 {\getparameters[\??xx#1][#2]}
> 6 \protect
> 7 \starttext
> 8 >> \definesomething[alfa][variable=test]
> 9 \stoptext
> 10
> 11
> 12
>
> <argument> \??xx
> alfa
> \setsomevalue #1#2->\@EA \def \csname #1
> #2\endcsname
> \p!doassign ...EAEA \setsomevalue \fi \fi {#1}{#2}
> {#3}
> \xprocesscommaitem ...@relax@ #1==\empty \@relax@
> \@EAEAEA \xprocesscommaite...
> \xdogetparameters #1]->\xprocesscommaitem #1,]
> ,\@relax@
> \next1 #1,->\@@dodowithsetcommand {#1}
> \doprocesscommaitem
> ...
> l.8 \definesomething[alfa][variable=test]
\definenamespace
[something]
[ type=module,
name=something,
command=yes]
\starttext
\definesomething[alfa][variable=test]
\stoptext
Wolfgang
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