Tagging and Math Matrix

Tagging and Math Matrix

[Christoph Reller]

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Hi,

There seems to be a problem with the structure information added when using
\startmatrix:

\setuptagging[state=start]
\starttext
\math{
  \startmatrix
    \NC A \NR
    \NC B \NR
  \stopmatrix}
\stoptext

The log reports an open chain: document>1 => mtr>1 => mtd>1 => mtr>2 =>
mtd>2 => mtr>3
This may be a bug.

Kind regards,
Christoph

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Re: Tagging and Math Matrix

[Hans Hagen]

On 9/7/2017 7:51 AM, Christoph Reller wrote:

> However: Testing never stops ;-) I have the following MWE:
These alignments are kind of tricky. I made a fix (will upload later) 
but we need more tests or actually a proper test suite for this. I'm 
pretty sure that there are other issues. (For instance one needs to get 
rid of artifacts related to spacing and wrappers.)

Hans


-----------------------------------------------------------------
                                           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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Re: Tagging and Math Matrix

[Christoph Reller]

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On Wed, 6 Sep 2017 11:25:51 +0200 Hans Hagen <pragma@wxs.nl> wrote:

> On 9/6/2017 9:55 AM, Christoph Reller wrote:
> > On Tue, 5 Sep 2017 16:29:52 +0200 Hans Hagen <pragma@wxs.nl
> > <mailto:pragma@wxs.nl>>   wrote:
> >
> >     On 8/30/2017 9:45 AM, Christoph Reller wrote:
> >      > On Mon, Dec 28, 2015 at 3:45 PM Christoph Reller
> >      > <christoph.reller@gmail.com> wrote:
> >      >
> >      > There seems to be a problem with the structure information added
> >      > when using \startmatrix:
> >      >
> >      > A fix would be very much appreciated.
> >
> >     should be ok now
> >
> >
> > Thank you Hans for this fix!
> >
> > There seems to be, however, still a minor issue with a more complete MWE:
> > \math{
> >    \startmatrix
> >      \NC A \NC B \NR
> >      \NC C \NC D \NR
> >    \stopmatrix}
>
> can you test with
>
> \def\math_matrix_process#1#2%
>    {\forgettagging % otherwise dummy mrows and such
>     \dowithnextbox
>       {\scratchdimen\dimexpr(\nextboxdp-\nextboxht)/2
> \ifcase#2\or+\mathaxisheight\textfont2\fi\relax
>
>
> \ifcase#1\relax\or\lower\scratchdimen\or\or\raise\scratchdimen\fi\hbox\bgroup
>          \normalstartimath
>          \mathmatrixparameter\c!left
>          \vcenter{\unvbox\nextbox}%
>          \mathmatrixparameter\c!right
>          \normalstopimath
>        \egroup}%
>     \vbox}
>

Indeed, this is much better! Thank you!
I recommend to include this as a patch in ConTeXt.

However: Testing never stops ;-) I have the following MWE:

\definemathmatrix[pmatrix][left={\left(},right={\right)}]
\math{
  \startpmatrix
    \NC A \NC B \NR
    \NC C \NC D \NR
  \stoppmatrix}

This (including your suggested fix) results in the following structure tree:

<document>
|-<math>
| '-<mrow>
|   '-<mrow>
|     '-<mfenced>
|       '-<mrow>
'-<math>
  '-<mtable>
    |-<mtr>
    | |-<mtd>
    | | '-<math>
    | |   '-<mrow>
    | |     '-<mi>
    | |       '-"A"
    | '-<mtd>
    |   '-<math>
    |     '-<mrow>
    |       '-<mi>
    |         '-"B"
    '-<mtr>
      |-<mtd>
      | '-<math>
      |   '-<mrow>
      |     '-<mi>
      |       '-"C"
      '-<mtd>
        '-<math>
          '-<mrow>
            '-<mi>
              '-"D"

I think that the <mtable> should be located within the <mfenced>, shouldn't
it?

Cheers,
Christoph

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Re: Tagging and Math Matrix

[Hans Hagen]

On 9/6/2017 9:55 AM, Christoph Reller wrote:
> On Tue, 5 Sep 2017 16:29:52 +0200 Hans Hagen <pragma@wxs.nl 
> <mailto:pragma@wxs.nl>>   wrote:
> 
>     On 8/30/2017 9:45 AM, Christoph Reller wrote:
>      > On Mon, Dec 28, 2015 at 3:45 PM Christoph Reller
>      > <christoph.reller@gmail.com <mailto:christoph.reller@gmail.com>
>     <mailto:christoph.reller@gmail.com
>     <mailto:christoph.reller@gmail.com>>>   wrote:
>      >
>      > There seems to be a problem with the structure information added
>      > when using \startmatrix:
>      >
>      > A fix would be very much appreciated.
> 
>     should be ok now
> 
> 
> Thank you Hans for this fix!
> 
> There seems to be, however, still a minor issue with a more complete MWE:
> \math{
>    \startmatrix
>      \NC A \NC B \NR
>      \NC C \NC D \NR
>    \stopmatrix}

can you test with

\def\math_matrix_process#1#2%
   {\forgettagging % otherwise dummy mrows and such
    \dowithnextbox
      {\scratchdimen\dimexpr(\nextboxdp-\nextboxht)/2 
\ifcase#2\or+\mathaxisheight\textfont2\fi\relax
 
\ifcase#1\relax\or\lower\scratchdimen\or\or\raise\scratchdimen\fi\hbox\bgroup
         \normalstartimath
         \mathmatrixparameter\c!left
         \vcenter{\unvbox\nextbox}%
         \mathmatrixparameter\c!right
         \normalstopimath
       \egroup}%
    \vbox}



> The resulting structure tree is as follows:
> <document>
> '-<math>
>    '-<mrow>
>      '-<mtext>
>        '-<mrow>
>          |-<mrow>
>          | '-<mtr>
>          |   |-<mtd>
>          |   | '-<math>
>          |   |   '-<mrow>
>          |   |     '-<mi>
>          |   |       '-"A"
>          |   '-<mtd>
>          |     '-<math>
>          |       '-<mrow>
>          |         '-<mi>
>          |           '-"B"
>          |-<mrow>            (*)
>          |-<mrow>
>          | '-<mtr>
>          |   |-<mtd>
>          |   | '-<math>
>          |   |   '-<mrow>
>          |   |     '-<mi>
>          |   |       '-"C"
>          |   '-<mtd>
>          |     '-<math>
>          |       '-<mrow>
>          |         '-<mi>
>          |           '-"D"
>          '-<mrow>            (*)
> 
> The elements marked with (*) are IMHO unnecessary. Do you agree?
> 
> Cheers
> Christoph
> 
> 
> 
> ___________________________________________________________________________________
> 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
> ___________________________________________________________________________________
> 


-- 

-----------------------------------------------------------------
                                           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!

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___________________________________________________________________________________

Re: Tagging and Math Matrix

[Christoph Reller]

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On Tue, 5 Sep 2017 16:29:52 +0200 Hans Hagen <pragma@wxs.nl>   wrote:

> On 8/30/2017 9:45 AM, Christoph Reller wrote:
> > On Mon, Dec 28, 2015 at 3:45 PM Christoph Reller
> > <christoph.reller@gmail.com <mailto:christoph.reller@gmail.com
> >>   wrote:
> >
> > There seems to be a problem with the structure information added
> > when using \startmatrix:
> >
> > A fix would be very much appreciated.
>
> should be ok now
>

Thank you Hans for this fix!

There seems to be, however, still a minor issue with a more complete MWE:
\math{
  \startmatrix
    \NC A \NC B \NR
    \NC C \NC D \NR
  \stopmatrix}

The resulting structure tree is as follows:
<document>
'-<math>
  '-<mrow>
    '-<mtext>
      '-<mrow>
        |-<mrow>
        | '-<mtr>
        |   |-<mtd>
        |   | '-<math>
        |   |   '-<mrow>
        |   |     '-<mi>
        |   |       '-"A"
        |   '-<mtd>
        |     '-<math>
        |       '-<mrow>
        |         '-<mi>
        |           '-"B"
        |-<mrow>            (*)
        |-<mrow>
        | '-<mtr>
        |   |-<mtd>
        |   | '-<math>
        |   |   '-<mrow>
        |   |     '-<mi>
        |   |       '-"C"
        |   '-<mtd>
        |     '-<math>
        |       '-<mrow>
        |         '-<mi>
        |           '-"D"
        '-<mrow>            (*)

The elements marked with (*) are IMHO unnecessary. Do you agree?

Cheers
Christoph

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___________________________________________________________________________________

Re: Tagging and Math Matrix

[Hans Hagen]

On 8/30/2017 9:45 AM, Christoph Reller wrote:
> On Mon, Dec 28, 2015 at 3:45 PM Christoph Reller 
> <christoph.reller@gmail.com <mailto:christoph.reller@gmail.com>>   wrote:
> 
>     There seems to be a problem with the structure information added
>     when using
>     \startmatrix:
> 
>     \setuptagging[state=start]
>     \starttext
>     \math{
>        \startmatrix
>          \NC A \NR
>          \NC B \NR
>        \stopmatrix}
>     \stoptext
> 
>     The log reports an open chain: document>1 => mtr>1 => mtd>1 => mtr>2 =>
>     mtd>2 => mtr>3
>     This may be a bug.
> 
> 
> This is clearly a bug. The resulting structure tree of the above MWE is 
> as follows (sorry for the ASCII art):
> 
> <document>
> '-<mtr>
>    '-<mtd>
>      |-<mtr>
>      | '-<mtd>
>      |   |-<mtr>
>      |   | '-<mtd>
>      |   |   |-<math>
>      |   |   | '-<mrow>
>      |   |   |   '-<mtext>
>      |   |   |     '-<mrow>
>      |   |   |       |-<mrow>
>      |   |   |       '-<mrow>
>      |   |   '-<math>
>      |   |     '-<mrow>
>      |   |       '-<mtext>
>      |   |         |-<mrow>
>      |   |         '-<mrow>
>      |   '-<math>
>      |     '-<mrow>
>      |       '-<mi>
>      |         '-"B"
>      '-<math>
>        '-<mrow>
>          '-<mi>
>            '-"A"
> 
> A fix would be very much appreciated.

should be ok now


-- 

-----------------------------------------------------------------
                                           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
___________________________________________________________________________________

Re: Tagging and Math Matrix

[Christoph Reller]

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On Mon, Dec 28, 2015 at 3:45 PM Christoph Reller <christoph.reller@gmail.com
>   wrote:

> There seems to be a problem with the structure information added when using
> \startmatrix:
>
> \setuptagging[state=start]
> \starttext
> \math{
>   \startmatrix
>     \NC A \NR
>     \NC B \NR
>   \stopmatrix}
> \stoptext
>
> The log reports an open chain: document>1 => mtr>1 => mtd>1 => mtr>2 =>
> mtd>2 => mtr>3
> This may be a bug.
>

This is clearly a bug. The resulting structure tree of the above MWE is as
follows (sorry for the ASCII art):

<document>
'-<mtr>
  '-<mtd>
    |-<mtr>
    | '-<mtd>
    |   |-<mtr>
    |   | '-<mtd>
    |   |   |-<math>
    |   |   | '-<mrow>
    |   |   |   '-<mtext>
    |   |   |     '-<mrow>
    |   |   |       |-<mrow>
    |   |   |       '-<mrow>
    |   |   '-<math>
    |   |     '-<mrow>
    |   |       '-<mtext>
    |   |         |-<mrow>
    |   |         '-<mrow>
    |   '-<math>
    |     '-<mrow>
    |       '-<mi>
    |         '-"B"
    '-<math>
      '-<mrow>
        '-<mi>
          '-"A"

A fix would be very much appreciated.
Thanks in advance,
Christoph

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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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