mathmatrix vs substack

mathmatrix vs substack

[Henri]

Dear devs,

Thank you very much for fixing this one
https://mailman.ntg.nl/pipermail/ntg-context/2017/089790.html
Unfortunately it seems like you broke substack and mathmatrix on the way.  MWE below fails
with version 2017.09.08 17:24

Cheers, Henri

---

\starttext

\placeformula
\startformula
  \sum_{\startsubstack
    \NC k \NR
    \NC \omega_n \NR
  \stopsubstack}
\stopformula

\placeformula
\startformula
  \startmathmatrix[left=\left|,right=\right|]
    \NC 0 \NC 1 \NR
    \NC 1 \NC 0 \NR
  \stopmathmatrix
  = -1 .
\stopformula

\stoptext
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Re: mathmatrix vs substack

[Hans Hagen]

On 9/11/2017 6:59 AM, Henri wrote:
> Dear devs,
> 
> Thank you very much for fixing this one
> https://mailman.ntg.nl/pipermail/ntg-context/2017/089790.html
> Unfortunately it seems like you broke substack and mathmatrix on the way.  MWE below fails
> with version 2017.09.08 17:24
> 
> Cheers, Henri
> 
> ---
> 
> \starttext
> 
> \placeformula
> \startformula
>    \sum_{\startsubstack
>      \NC k \NR
>      \NC \omega_n \NR
>    \stopsubstack}
> \stopformula
> 
> \placeformula
> \startformula
>    \startmathmatrix[left=\left|,right=\right|]
>      \NC 0 \NC 1 \NR
>      \NC 1 \NC 0 \NR
>    \stopmathmatrix
>    = -1 .
> \stopformula
> 
> \stoptext
% no tagging yet : how is it supposed to be coded? no time now anyway

\unexpanded\def\startsubstack
   {\begingroup
    \vcenter\bgroup
    \baselineskip\mathstacktotal
    \lineskip\mathstackvgap
    \lineskiplimit\lineskip
    \mathsurround\zeropoint
    \everycr\emptytoks
    \let\NC\relax
    \let\MC\relax
    \let\NR\crcr
 
\halign\bgroup\hfil\normalstartimath\scriptstyle\alignmark\alignmark\normalstopimath\hfil\crcr}

\def\stopsubstack
   {\crcr
    \egroup
    \egroup
    \endgroup}


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

Re: mathmatrix vs substack

[Henri]

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Dear Hans,

Thanks for the patch.  It runs without errors again.  However, another problem surfaced.  In the MWE
below the second column of the matrix is no longer centred as it should be.

current version: 2017.09.08 17:24

Cheers, Henri

---

\starttext

\placeformula
\startformula
   \startmathmatrix
     \NC long line \NC 1 \NR
     \NC 1 \NC long line \NR
   \stopmathmatrix
\stopformula

\stoptext

On Mon, 2017-09-11 at 10:03 +0200, Hans Hagen wrote:
> On 9/11/2017 6:59 AM, Henri wrote:
> > 
> > Dear devs,
> > 
> > Thank you very much for fixing this one
> > https://mailman.ntg.nl/pipermail/ntg-context/2017/089790.html
> > Unfortunately it seems like you broke substack and mathmatrix on the way.  MWE below fails
> > with version 2017.09.08 17:24
> > 
> > Cheers, Henri
> > 
> > ---
> > 
> > \starttext
> > 
> > \placeformula
> > \startformula
> >    \sum_{\startsubstack
> >      \NC k \NR
> >      \NC \omega_n \NR
> >    \stopsubstack}
> > \stopformula
> > 
> > \placeformula
> > \startformula
> >    \startmathmatrix[left=\left|,right=\right|]
> >      \NC 0 \NC 1 \NR
> >      \NC 1 \NC 0 \NR
> >    \stopmathmatrix
> >    = -1 .
> > \stopformula
> > 
> > \stoptext
> % no tagging yet : how is it supposed to be coded? no time now anyway
> 
> \unexpanded\def\startsubstack
>    {\begingroup
>     \vcenter\bgroup
>     \baselineskip\mathstacktotal
>     \lineskip\mathstackvgap
>     \lineskiplimit\lineskip
>     \mathsurround\zeropoint
>     \everycr\emptytoks
>     \let\NC\relax
>     \let\MC\relax
>     \let\NR\crcr
>  
> \halign\bgroup\hfil\normalstartimath\scriptstyle\alignmark\alignmark\normalstopimath\hfil\crcr}
> 
> \def\stopsubstack
>    {\crcr
>     \egroup
>     \egroup
>     \endgroup}
> 
> 
> -----------------------------------------------------------------
>                                            Hans Hagen | PRAGMA ADE
>                Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>         tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
> -----------------------------------------------------------------

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___________________________________________________________________________________
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
___________________________________________________________________________________