Wolfgang,
I did define the various variants in order to parametrize vtop, vbox and
vcenter through parameters top, bottom, center.
Happily there proved to be a remedy: place everything inside an \hbox and the
error goes away. Without problematic whitespace or other nasty side effects, it
seems. But, although the panic is over now :-), I am still curious to know why
it worked before and raises an error now.
as for the definition of \placexlocation, it comes from:
\def\setupplacex{\getparameters[placex]}
\setupplacex[% default parameters
...
location=center,%
...
]%
and I checked that it had the value: center.
But if you are interested, I can send you the module code.
dr. Hans van der Meer
> On 7 Jun 2020, at 12:20, Wolfgang Schuster
> <wolfgang.schuster.li...@gmail.com> wrote:
>
> Hans van der Meer schrieb am 07.06.2020 um 12:07:
>> A problem has arisen up since previous versions, where code without a
>> problem now raises an error.
>> This is the afflicted code:
>> % Assign values to \locationbox.
>> \doif{top}{\placexlocation}%
>> {\def\startlocationbox{\vtop\bgroup\vss}}%
>> \doif{center}{\placexlocation}%
>> {\def\startlocationbox{\vcenter\bgroup}}%
>> \doif{bottom}{\placexlocation}%
>> {\def\startlocationbox{\vbox\bgroup}}%
>> And it is used here:
>> \setbox\placexbox=\startlocationbox
>> \ignorespaces
>> Previously this worked without a hitch, now the error is:
>> tex error > tex error on line 9 in file ./familie-events.tex: ! A
>> <box> was supposed to be here
>> <to be read again>
>> \vcenter
>> \startlocationbox ->\vcenter
>> \bgroup
>> \dostartcontentplacexinline ...ables \par \setbox \placexbox
>> =\startlocationbox
>>
>> \ignorespaces
>> <to be read again> \syst_helpers_single_empty_one_nop
>> \xmlflush
>> \21>:xmlplc:placexcontent ...le=\xmlatt {#1}{alttitle}]}\startcontent
>> \xmlflush
>>
>> {#1}\stopcontent
>> l.9 }
>> I can try to make a minimal example, but not without the afflicted module of
>> some 800 lines. So perhaps the problem will be located by the experts at
>> first sight. It is of course the \vcenter playing havoc, because replacing
>> it by \vtop or \vbox makes the error disappear.
>> Thanks for looking into it, because my work more or less depends on this
>> code working in good order.
>
> How so you define \placexlocation?
>
> Wolfgang
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the
> Wiki!
>
> maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
> webpage : http://www.pragma-ade.nl / http://context.aanhet.net
> archive : https://bitbucket.org/phg/context-mirror/commits/
> wiki : http://contextgarden.net
> ___________________________________________________________________________________
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the
Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://context.aanhet.net
archive : https://bitbucket.org/phg/context-mirror/commits/
wiki : http://contextgarden.net
___________________________________________________________________________________
