Just disregard this post and have mercy on the deadline panicked ...
Joh
Johannes Graumann wrote:
> The 'selector' feature sounds truly wonderfull! The code below doesn't
> compile yet for me though ...
> 1) '\protect' needs to be called after '{\executeifdefined{\??sx#1\c!n
> 1}}', no?
> 2) Even after changing that I run into the following error when compiling
> the example below:
>
> ! Missing { inserted.
> <to be read again>
>
> l.94
> {\select{caption}{zapf}{\input zapf \relax}}
>
> Thank you for your help!
>
> Joh
>
> Hans Hagen wrote:
>> \unprotect
>>
>> % let's reuse this one in selectors (from syst-ext)
>>
>> \def\dofilterfromstr#1#2% max n
>> {\ifcase#1\or
>> \ifcase#2\or
>> \strippedcsname\firstofoneargument
>> \else
>> \strippedcsname\gobbleoneargument
>> \fi
>> \or
>> \ifcase#2\or
>> \strippedcsname\firstoftwoarguments
>> \or
>> \strippedcsname\secondoftwoarguments
>> \else
>> \strippedcsname\gobbletwoarguments
>> \fi
>> \or
>> \ifcase#2\or
>> \strippedcsname\firstofthreearguments
>> \or
>> \strippedcsname\secondofthreearguments
>> \or
>> \strippedcsname\thirdofthreearguments
>> \else
>> \strippedcsname\gobblethreearguments
>> \fi
>> \or
>> \ifcase#2\or
>> \strippedcsname\firstoffourarguments
>> \or
>> \strippedcsname\secondoffourarguments
>> \or
>> \strippedcsname\thirdoffourarguments
>> \or
>> \strippedcsname\fourthoffourarguments
>> \else
>> \strippedcsname\gobblefourarguments
>> \fi
>> \or
>> \ifcase#2\or
>> \strippedcsname\firstoffivearguments
>> \or
>> \strippedcsname\secondoffivearguments
>> \or
>> \strippedcsname\thirdoffivearguments
>> \or
>> \strippedcsname\fourthoffivearguments
>> \or
>> \strippedcsname\fifthoffivearguments
>> \else
>> \strippedcsname\gobblefivearguments
>> \fi
>> \fi}
>>
>> \def\filterfromvalue#1#2#3% value max n
>> [EMAIL PROTECTED]@EAEAEA\csname % we use the fact that an
>> [EMAIL PROTECTED] % undefined cs has become \relax
>> \strippedcsname\gobbleoneargument % which we then gobble here
>> \else
>> \dofilterfromstr{#2}{#3}%
>> \fi
>> \endcsname\csname#1\endcsname}
>>
>> \def\filterfromnext#1#2% max n {..}{..}{..}{..}
>> {\csname\dofilterfromstr{#1}{#2}\endcsname}
>>
>> % new, selectors
>>
>> \definesystemvariable{sx}
>>
>> \def\defineselector{\dodoubleargument\dodefineselector}
>> \def\setupselector {\dodoubleargument\dosetupselector}
>>
>> \def\dodefineselector[#1][#2]{\getparameters[\??sx#1][\c!max=2
\c!n=1,#2]}
>> \def\dosetupselector [#1][#2]{\getparameters[\??sx#1][#2]}
>>
>> \unexpanded\def\select#1%
>> {\filterfromnext
>> {\executeifdefined{\??sx#1\c!max}1}
>> {\executeifdefined{\??sx#1\c!n }1}}
>>
>> \defineselector[caption][max=2,n=1]
>>
>> \start
>> \setupselector[caption][n=1]
>> \placelist[figure][criterium=all]
>> \stop
>>
>> \starttext
>>
>> \placefigure
>> {\select{caption}{zapf}{\input zapf \relax}}
>> {}
>>
>> \stoptext
>>
>> i'll add selectors to the core
>>
>> Hans
>>
>> -----------------------------------------------------------------
>> Hans Hagen | PRAGMA ADE
>> Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>> tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
>> | www.pragma-pod.nl
>> -----------------------------------------------------------------
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