Bug with mathmatrix row-spacing in \startalign

Bug with mathmatrix row-spacing in \startalign

[Andreas Halkjær]

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Hello, I hope I'm doing this right.

I discovered a bug where the spacing between rows becomes too large in a
mathmatrix when used in between \startalign and \stopalign.

I posted on StackExchange and was told to report it here:
http://tex.stackexchange.com/questions/130636/context-wrong-mathmatrix-spacing-between-rows-in-startalign-environment<http://tex.stackexchange.com/questions/130636/context-wrong-mathmatrix-spacing-between-rows-in-startalign-environment?noredirect=1#comment294770_130636>

I've included the MWE, from the above link, below.

Thanks for the quick response,
Andreas From

\setupmathmatrix[left={\left[\,}, right={\,\right]}]
\starttext
\startformula
   \startmathmatrix \NC 1 \NR \NC 2 \NR \NC 3 \NR \stopmathmatrix
\stopformula
\startformula \startalign
   \NC \startmathmatrix \NC 1 \NR \NC 2 \NR \NC 3 \NR \stopmathmatrix \NR
\stopalign \stopformula
\stoptext

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Re: Bug with mathmatrix row-spacing in \startalign

[Hans Hagen]

On 8/30/2013 12:16 AM, Andreas Halkjær wrote:
> Hello, I hope I'm doing this right.
>
> I discovered a bug where the spacing between rows becomes too large in a
> mathmatrix when used in between \startalign and \stopalign.
>
> I posted on StackExchange and was told to report it here:
> http://tex.stackexchange.com/questions/130636/context-wrong-mathmatrix-spacing-between-rows-in-startalign-environment
> <http://tex.stackexchange.com/questions/130636/context-wrong-mathmatrix-spacing-between-rows-in-startalign-environment?noredirect=1#comment294770_130636>
>
> I've included the MWE, from the above link, below.
>
> Thanks for the quick response,
> Andreas From
>
> \setupmathmatrix[left={\left[\,}, right={\,\right]}]
>
> |
> \starttext
>
> \startformula
>     \startmathmatrix\NC1 \NR\NC2 \NR\NC3 \NR\stopmathmatrix
>
> \stopformula
>
> \startformula\startalign
>
>     \NC\startmathmatrix\NC1 \NR\NC2 \NR\NC3 \NR\stopmathmatrix\NR
>
> \stopalign\stopformula
>
>
> \stoptext|

Interesting. In the end it is a side effect of an obscured variable. For 
those who know th econtext internals, I had to do this:

\let\normalbaselineskip \relax \newskip \normalbaselineskip  % these got 
lost in the transition to mkiv due
\let\normallineskip     \relax \newskip \normallineskip      % to 
auto-\normal* definitions and registers
\let\normallineskiplimit\relax \newdimen\normallineskiplimit % being 
protected

I uploaded a new beta.

Hans

PS. Aditya: in the process I made a \closeup that counteracts \openup 
(low level names \math_* )

Hans

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