Bug in startcombination

Bug in startcombination

[Otared Kavian]

Hi Hans,

It seems that in the latest ConTeXt beta a bug shows up when using \startcombination, or something has changed recently that I have overlooked.
The following example typesets correctly in mkii, and used to produce a correct output with mkiv. However, now, with ConTeXt  version 2016.05.17 19:20,  the typesetting stops with an error message saying:

[………] Missing { inserted

<inserted text> 
{
<to be read again> 
\cr 
\pack_combinations_pickup_package_pair_c ->\cr 
                                               \pack_combinations_flush_capt...
l.20 	\stopcombination}
[………]

Here is the example:

%%% begin bug-combination.tex
\setupcolors[state=start]
\useMPlibrary[dum]

\starttext

This is our first picture.
\placefigure[none]{}{\externalfigure[dummy][width=6cm]}
\blank

This is a combination of 3 figures on two lines
\placefigure[none]{}
{
\midaligned{
	\startcombination[1*2]
		{\startcombination[2*1]
			{\externalfigure[dummy][width=6cm]}{}
			{\externalfigure[dummy][width=6cm]}{} 
		\stopcombination}
		{\externalfigure[dummy][width=6cm]}{}
	\stopcombination}
}

\stoptext
%%% end bug-combination.tex

Thanks for your attention and best regards: OK
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Re: Bug in startcombination

[Hans Hagen]

On 8/14/2017 9:53 AM, Otared Kavian wrote:
> Hi Hans,
> 
> It seems that in the latest ConTeXt beta a bug shows up when using \startcombination, or something has changed recently that I have overlooked.
> The following example typesets correctly in mkii, and used to produce a correct output with mkiv. However, now, with ConTeXt  version 2016.05.17 19:20,  the typesetting stops with an error message saying:
> 
> [………] Missing { inserted
> 
> <inserted text>
> {
> <to be read again>
> \cr
> \pack_combinations_pickup_package_pair_c ->\cr
>                                                 \pack_combinations_flush_capt...
> l.20 	\stopcombination}
> [………]
> 
> Here is the example:
> 
> %%% begin bug-combination.tex
> \setupcolors[state=start]
> \useMPlibrary[dum]
> 
> \starttext
> 
> This is our first picture.
> \placefigure[none]{}{\externalfigure[dummy][width=6cm]}
> \blank
> 
> This is a combination of 3 figures on two lines
> \placefigure[none]{}
> {
> \midaligned{
> 	\startcombination[1*2]
> 		{\startcombination[2*1]
> 			{\externalfigure[dummy][width=6cm]}{}
> 			{\externalfigure[dummy][width=6cm]}{}
> 		\stopcombination}
> 		{\externalfigure[dummy][width=6cm]}{}

There is a {} too many in that line (or one missing)

> 	\stopcombination}
> }
> 
> \stoptext
> %%% end bug-combination.tex
%%% end sloppy-combination.tex

\starttext

\startplacefigure[location=none]
	\startcombination[1*2]
		{\startcombination[2*1]
			{1.1}{}
			{1.2}{}
		\stopcombination}
		{2} % one {} too many
	\stopcombination
\stopplacefigure

\startplacefigure[location=none]
	\startcombination[1*2]
		{\startcombination[2*1]
			{1.1}{}
			{1.2}{}
		\stopcombination}{}
		{2}{}
	\stopcombination
\stopplacefigure

\stoptext


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                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
        tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
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
___________________________________________________________________________________