Re: [NTG-context] dorecurse within combination

[Wolfgang Schuster via ntg-context]

Henning Hraban Ramm via ntg-context schrieb am 07.07.2022 um 21:25:

Am 07.07.22 um 20:52 schrieb Henning Hraban Ramm via ntg-context:

How can I do this?
Sorry for the noise, I solved it with Lua. The cld manual even 
contains a combinations example.


The Lua method is also simpler than a TeX based alternative.

\starttext

\startcollecting
%
\startcollect
\startcombination[3*1]
\stopcollect
%
\dorecurse{3}
  {\startcollect
   {\externalfigure[dummy]}{}
   \stopcollect}
%
\startcollect
\stopcombination
\stopcollect
%
\stopcollecting

\stoptext

Wolfgang

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Re: [NTG-context] dorecurse within combination

[Henning Hraban Ramm via ntg-context]

Am 07.07.22 um 20:52 schrieb Henning Hraban Ramm via ntg-context:

How can I do this?


Sorry for the noise, I solved it with Lua. The cld manual even contains 
a combinations example.


Hraban

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[NTG-context] dorecurse within combination

[Henning Hraban Ramm via ntg-context]

Hi, I’d like to place pages from a multipage PDF in a combination:

\startcombination[3*1]
\dorecurse{3}{%
  {\externalfigure[multipage][width=\textwidth/3,page=\recurselevel]}{}
}
\stopcombination

That doesn’t work, because ConTeXt expects a { after \startcombination. 
(“A left brace was mandatory here, so I've put one in.”)

I guess I need some expansion, but \expanded doesn’t help.

How can I do this?

Hraban
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Re: [NTG-context] \dorecurse{}{} problem

[Jeong Dal]

Dear Aditya, Jairo, Wolfgang, and Otared,

Thank you for the replies and explanations.
I also read the blog.

In this case, using '##1’ is an easy way.
For more complex table, I may use luacode.

Thanks again.

Best regards,

Dalyoung




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Re: [NTG-context] \dorecurse{}{} problem

[Wolfgang Schuster]

Jeong Dal schrieb am 21.09.2020 um 20:54:


Dear Aditya, Jairo, Wolfgang, and Otared,

Thank you for the replies and explanations.
I also read the blog.

In this case, using '##1’ is an easy way.
For more complex table, I may use luacode.



I forgot the obvious \expanded solution:

\starttext

\starttabulate[|c|]
\dorecurse{9}{\expanded{\NC \recurselevel \NC\NR}}
\stoptabulate

\stoptext

Wolfgang
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[NTG-context] \dorecurse{}{} problem

[Jeong Dal]

Hi,

I tried to make a table using \dorecurse or \doloop as in the example.
There is no error but \recurselevel is not increased, all are 0 in the first 
example and only two rows are created with the \recurselevel 0 and 2 only in 
the second example.

Does the tabulate cause the error?
What is wrong in this MWE?

Thank you for reading.

Best regards,

Dalyoung

*
\startbuffer[AdjacencyList1]
\starttabulate[|c|cw(2cm)|]
\HL
\dorecurse{8}
   {\NC \recurselevel \NC \NC\NR \HL}
\stoptabulate
\stopbuffer

\startbuffer[AdjacencyList2]
\starttabulate[|c|cw(2cm)|]
\HL
\doloop{
   \ifnum \recurselevel=7
  \exitloop
   \fi
   \NC \recurselevel \NC \NC\NR \HL
}
\stoptabulate
\stopbuffer

\starttext
\getbuffer[AdjacencyList1]

\getbuffer[AdjacencyList2]
\stoptext

> 2020. 9. 21. 오후 10:50, ntg-context-requ...@ntg.nl 작성:
> 
> Send ntg-context mailing list submissions to
>   ntg-context@ntg.nl
> 
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> 
> Today's Topics:
> 
>   1. Parallel text support (Denis Maier)
>   2. Re: Parallel text support (Taco Hoekwater)
>   3. Re: ZapfDingbats Unicode differences MKIV vs LMTX
>  (Christoph Reller)
>   4. Re: ZapfDingbats Unicode differences MKIV vs LMTX (Hans Hagen)
>   5. Math fonts for Nimbus fonts (Otared Kavian)
>   6. Re: 2020 Meeting recordings? (Taco Hoekwater)
> 
> 
> --
> 
> Message: 1
> Date: Mon, 21 Sep 2020 12:21:37 +0200
> From: Denis Maier 
> To: ntg-context@ntg.nl
> Subject: [NTG-context] Parallel text support
> Message-ID: <780fe43c-f2c3-6ea1-04f5-d4d5c22e7...@mailbox.org>
> Content-Type: text/plain; charset=utf-8; format=flowed
> 
> Hi,
> 
> I'm trying to typeset a parallel text that should appear in columns. The 
> sources are XML, and there I have to use tables for this. So, I thought 
> the easiest way is to use extreme tables for this:
> 
> =
> \starttext
> 
> \dorecurse{3}{\input knuth}
> 
> \startxtable[split=yes,frame=off]
> \startxrow
> \startxcell Text \stopxcell
> \startxcell Übersetzung \stopxcell
> \stopxrow
> \startxrow
> \startxcell \input ward \stopxcell
> \startxcell \input tufte \stopxcell
> \stopxrow
> \stopxtable
> 
> \stoptext
> =
> 
> However, as it turns out, split only seems to mean that the table is 
> split between rows, individual rows stay on the same page.
> 
> Is there a better approach? I've found the page-streams, but that seems 
> to be too much...
> 
> Best,
> Denis
> 
> 
> --
> 
> Message: 2
> Date: Mon, 21 Sep 2020 13:58:11 +0200
> From: Taco Hoekwater 
> To: mailing list for ConTeXt users 
> Subject: Re: [NTG-context] Parallel text support
> Message-ID: 
> Content-Type: text/plain; charset=utf-8
> 
> 
> 
>> On 21 Sep 2020, at 12:21, Denis Maier  wrote:
>> 
>> 
>> However, as it turns out, split only seems to mean that the table is split 
>> between rows, individual rows stay on the same page.
>> 
>> Is there a better approach? I've found the page-streams, but that seems to 
>> be too much…
> 
> \starttabulate
> 
> 
> 
> --
> 
> Message: 3
> Date: Mon, 21 Sep 2020 14:55:02 +0200
> From: Christoph Reller 
> To: Hans Hagen 
> Cc: mailing list for ConTeXt users 
> Subject: Re: [NTG-context] ZapfDingbats Unicode differences MKIV vs
>   LMTX
> Message-ID:
>   
> Content-Type: text/plain; charset="utf-8"
> 
> On Sat, Sep 19, 2020 at 12:04 PM Hans Hagen  wrote:
> 
>> On 9/19/2020 6:18 AM, Christoph Reller wrote:
>>> On Fri, Sep 18, 2020 at 4:17 PM Hans Hagen >> <mailto:j.ha...@xs4all.nl>> wrote:
>>> 
>>>On 9/18/2020 11:23 AM, Christoph Reller wrote:
>>> 
>> \definefontsynonym[ZapfDingbats][file:ZapfDingbats][features=dingbats]
>>>> \usemodule [fnt-10]
>>>> \starttext
>>>> (1) \getglyphdirect{ZapfDingbats}{61491}\crlf % MKIV log: char 
>>>> (U+0F033) in font 'ZapfDingbats-4' with id 8: missing
>>>> (2) \getglyphdirect{ZapfDingbats}{983059} % LMTX log: char 
>>>> (U+F0013) in font 'ZapfDingbats-4' with id 8: missing
>>>> \ShowCompleteFon

Re: [NTG-context] \dorecurse{}{} problem

[Otared Kavian]

> On 21 Sep 2020, at 16:42, Aditya Mahajan  wrote:
> 
> On Mon, 21 Sep 2020, Wolfgang Schuster wrote:
> 
>> Aditya Mahajan schrieb am 21.09.2020 um 16:35:
>>> […]
> 
> You gave the same reply 11 years ago :-) which is also listed in the blog 
> post.

… Which shows that some things don't change in ConTeXt :-)

Kidding aside, why is there a difference between the tabulate mechanism and the 
xtable mechanism?

Best regards: Otared K.
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Re: [NTG-context] \dorecurse{}{} problem

[Aditya Mahajan]

On Mon, 21 Sep 2020, Wolfgang Schuster wrote:

> Aditya Mahajan schrieb am 21.09.2020 um 16:35:
> > On Mon, 21 Sep 2020, Jeong Dal wrote:
> > 
> > > Hi,
> > > 
> > > I tried to make a table using \dorecurse or \doloop as in the example.
> > > There is no error but \recurselevel is not increased, all are 0 in the
> > > first example and only two rows are created with the \recurselevel 0 and 2
> > > only in the second example.
> > > 
> > > Does the tabulate cause the error?
> > > What is wrong in this MWE?
> > \dorecurse does not expand its arguments. See this old blog post for a
> > discussion on this:
> > 
> > https://adityam.github.io/context-blog/post/tex-programming/
> 
> \starttext
> 
> \starttabulate[|c|]
> \dorecurse{8}{\NC ##1 \NC\NR}
> \stoptabulate
> 
> \stoptext

You gave the same reply 11 years ago :-) which is also listed in the blog post.

Aditya
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Re: [NTG-context] \dorecurse{}{} problem

[Otared Kavian]

Hi Dalyoung,

I don't know why \recurselevel returns 0 inside a tabulate environment, but the 
following works fine:

\starttext
\startxtable[frame=off,bottomframe=on,width=1cm,align={middle,lohi}]
\startxrow\startxcell \stopxcell\stopxrow % just to have a line on the top of 
the first row
\dorecurse{8}
   {\startxrow\startxcell \recurselevel \stopxcell\stopxrow}
\stopxtable
\stoptext

Best regards: Otared K.

> On 21 Sep 2020, at 16:07, Jeong Dal  wrote:
> 
> Hi,
> 
> I tried to make a table using \dorecurse or \doloop as in the example.
> There is no error but \recurselevel is not increased, all are 0 in the first 
> example and only two rows are created with the \recurselevel 0 and 2 only in 
> the second example.
> 
> Does the tabulate cause the error?
> What is wrong in this MWE?
> 
> Thank you for reading.
> 
> Best regards,
> 
> Dalyoung
> 
> *
> \startbuffer[AdjacencyList1]
> \starttabulate[|c|cw(2cm)|]
> \HL
> \dorecurse{8}
>{\NC \recurselevel \NC \NC\NR \HL}
> \stoptabulate
> \stopbuffer
> 
> \startbuffer[AdjacencyList2]
> \starttabulate[|c|cw(2cm)|]
> \HL
> \doloop{
>\ifnum \recurselevel=7
>   \exitloop
>\fi
>\NC \recurselevel \NC \NC\NR \HL
> }
> \stoptabulate
> \stopbuffer
> 
> \starttext
> \getbuffer[AdjacencyList1]
> 
> \getbuffer[AdjacencyList2]
> \stoptext
> 
>> 2020. 9. 21. 오후 10:50, ntg-context-requ...@ntg.nl 작성:
>> 
>> Send ntg-context mailing list submissions to
>>  ntg-context@ntg.nl
>> 
>> To subscribe or unsubscribe via the World Wide Web, visit
>>  https://mailman.ntg.nl/mailman/listinfo/ntg-context
>> or, via email, send a message with subject or body 'help' to
>>  ntg-context-requ...@ntg.nl
>> 
>> You can reach the person managing the list at
>>  ntg-context-ow...@ntg.nl
>> 
>> When replying, please edit your Subject line so it is more specific
>> than "Re: Contents of ntg-context digest..."
>> 
>> 
>> Today's Topics:
>> 
>>   1. Parallel text support (Denis Maier)
>>   2. Re: Parallel text support (Taco Hoekwater)
>>   3. Re: ZapfDingbats Unicode differences MKIV vs LMTX
>>  (Christoph Reller)
>>   4. Re: ZapfDingbats Unicode differences MKIV vs LMTX (Hans Hagen)
>>   5. Math fonts for Nimbus fonts (Otared Kavian)
>>   6. Re: 2020 Meeting recordings? (Taco Hoekwater)
>> 
>> 
>> --
>> 
>> Message: 1
>> Date: Mon, 21 Sep 2020 12:21:37 +0200
>> From: Denis Maier 
>> To: ntg-context@ntg.nl
>> Subject: [NTG-context] Parallel text support
>> Message-ID: <780fe43c-f2c3-6ea1-04f5-d4d5c22e7...@mailbox.org>
>> Content-Type: text/plain; charset=utf-8; format=flowed
>> 
>> Hi,
>> 
>> I'm trying to typeset a parallel text that should appear in columns. The 
>> sources are XML, and there I have to use tables for this. So, I thought 
>> the easiest way is to use extreme tables for this:
>> 
>> =
>> \starttext
>> 
>> \dorecurse{3}{\input knuth}
>> 
>> \startxtable[split=yes,frame=off]
>> \startxrow
>> \startxcell Text \stopxcell
>> \startxcell Übersetzung \stopxcell
>> \stopxrow
>> \startxrow
>> \startxcell \input ward \stopxcell
>> \startxcell \input tufte \stopxcell
>> \stopxrow
>> \stopxtable
>> 
>> \stoptext
>> =
>> 
>> However, as it turns out, split only seems to mean that the table is 
>> split between rows, individual rows stay on the same page.
>> 
>> Is there a better approach? I've found the page-streams, but that seems 
>> to be too much...
>> 
>> Best,
>> Denis
>> 
>> 
>> --
>> 
>> Message: 2
>> Date: Mon, 21 Sep 2020 13:58:11 +0200
>> From: Taco Hoekwater 
>> To: mailing list for ConTeXt users 
>> Subject: Re: [NTG-context] Parallel text support
>> Message-ID: 
>> Content-Type: text/plain;charset=utf-8
>> 
>> 
>> 
>>> On 21 Sep 2020, at 12:21, Denis Maier  wrote:
>>> 
>>> 
>>> However, as it turns out, split only seems to mean that the table is split 
>>> between rows, individual rows stay on the same page.
>>> 
>>> Is there a better approach? I've found the page-streams, but that seems to 
>>> be too much…
>> 
>> \starttabulate
>> 
>> 
>> 
>> --
>> 
>> Message: 3
>> Date: Mon, 21

Re: [NTG-context] \dorecurse{}{} problem

[Wolfgang Schuster]

Aditya Mahajan schrieb am 21.09.2020 um 16:35:

On Mon, 21 Sep 2020, Jeong Dal wrote:


Hi,

I tried to make a table using \dorecurse or \doloop as in the example.
There is no error but \recurselevel is not increased, all are 0 in the first 
example and only two rows are created with the \recurselevel 0 and 2 only in 
the second example.

Does the tabulate cause the error?
What is wrong in this MWE?

\dorecurse does not expand its arguments. See this old blog post for a 
discussion on this:

https://adityam.github.io/context-blog/post/tex-programming/


\starttext

\starttabulate[|c|]
\dorecurse{8}{\NC ##1 \NC\NR}
\stoptabulate

\stoptext

Wolfgang

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Re: [NTG-context] \dorecurse{}{} problem

[Jairo A. del Rio]

Hi,
Using ##1 instead of \recurselevel makes it work in this specific case if
you want a quick and dirty solution. It seems to be a thing with nesting,
as using #1 complains. I'd prefer the solutions as shown by Aditya:
constructing tables via Lua, etc.

Regards,
Jairo



El lun., 21 de sep. de 2020 a la(s) 09:16, Jeong Dal (hak...@me.com)
escribió:

> Hi,
>
> I tried to make a table using \dorecurse or \doloop as in the example.
> There is no error but \recurselevel is not increased, all are 0 in the
> first example and only two rows are created with the \recurselevel 0 and 2
> only in the second example.
>
> Does the tabulate cause the error?
> What is wrong in this MWE?
>
> Thank you for reading.
>
> Best regards,
>
> Dalyoung
>
> *
> \startbuffer[AdjacencyList1]
> \starttabulate[|c|cw(2cm)|]
> \HL
> \dorecurse{8}
> {\NC \recurselevel \NC \NC\NR \HL}
> \stoptabulate
> \stopbuffer
>
> \startbuffer[AdjacencyList2]
> \starttabulate[|c|cw(2cm)|]
> \HL
> \doloop{
> \ifnum \recurselevel=7
> \exitloop
> \fi
> \NC \recurselevel \NC \NC\NR \HL
> }
> \stoptabulate
> \stopbuffer
>
> \starttext
> \getbuffer[AdjacencyList1]
>
> \getbuffer[AdjacencyList2]
> \stoptext
>
> 2020. 9. 21. 오후 10:50, ntg-context-requ...@ntg.nl 작성:
>
> Send ntg-context mailing list submissions to
> ntg-context@ntg.nl
>
> To subscribe or unsubscribe via the World Wide Web, visit
> https://mailman.ntg.nl/mailman/listinfo/ntg-context
> or, via email, send a message with subject or body 'help' to
> ntg-context-requ...@ntg.nl
>
> You can reach the person managing the list at
> ntg-context-ow...@ntg.nl
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of ntg-context digest..."
>
>
> Today's Topics:
>
>   1. Parallel text support (Denis Maier)
>   2. Re: Parallel text support (Taco Hoekwater)
>   3. Re: ZapfDingbats Unicode differences MKIV vs LMTX
>  (Christoph Reller)
>   4. Re: ZapfDingbats Unicode differences MKIV vs LMTX (Hans Hagen)
>   5. Math fonts for Nimbus fonts (Otared Kavian)
>   6. Re: 2020 Meeting recordings? (Taco Hoekwater)
>
>
> --
>
> Message: 1
> Date: Mon, 21 Sep 2020 12:21:37 +0200
> From: Denis Maier 
> To: ntg-context@ntg.nl
> Subject: [NTG-context] Parallel text support
> Message-ID: <780fe43c-f2c3-6ea1-04f5-d4d5c22e7...@mailbox.org>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> Hi,
>
> I'm trying to typeset a parallel text that should appear in columns. The
> sources are XML, and there I have to use tables for this. So, I thought
> the easiest way is to use extreme tables for this:
>
> =
> \starttext
>
> \dorecurse{3}{\input knuth}
>
> \startxtable[split=yes,frame=off]
> \startxrow
> \startxcell Text \stopxcell
> \startxcell Übersetzung \stopxcell
> \stopxrow
> \startxrow
> \startxcell \input ward \stopxcell
> \startxcell \input tufte \stopxcell
> \stopxrow
> \stopxtable
>
> \stoptext
> =
>
> However, as it turns out, split only seems to mean that the table is
> split between rows, individual rows stay on the same page.
>
> Is there a better approach? I've found the page-streams, but that seems
> to be too much...
>
> Best,
> Denis
>
>
> --
>
> Message: 2
> Date: Mon, 21 Sep 2020 13:58:11 +0200
> From: Taco Hoekwater 
> To: mailing list for ConTeXt users 
> Subject: Re: [NTG-context] Parallel text support
> Message-ID: 
> Content-Type: text/plain; charset=utf-8
>
>
>
> On 21 Sep 2020, at 12:21, Denis Maier 
> wrote:
>
>
> However, as it turns out, split only seems to mean that the table is split
> between rows, individual rows stay on the same page.
>
> Is there a better approach? I've found the page-streams, but that seems to
> be too much…
>
>
> \starttabulate
>
>
>
> --
>
> Message: 3
> Date: Mon, 21 Sep 2020 14:55:02 +0200
> From: Christoph Reller 
> To: Hans Hagen 
> Cc: mailing list for ConTeXt users 
> Subject: Re: [NTG-context] ZapfDingbats Unicode differences MKIV vs
> LMTX
> Message-ID:
> 
> Content-Type: text/plain; charset="utf-8"
>
> On Sat, Sep 19, 2020 at 12:04 PM Hans Hagen  wrote:
>
> On 9/19/2020 6:18 AM, Christoph Reller wrote:
>
> On Fri, Sep 18, 2020 at 4:17 PM Hans Hagen  <mailto:j.ha...@xs4all.nl>> wrote:
>
>On 9/18/2020 11:23 AM, Christoph Reller wrote:
>
> \definefontsynonym[ZapfDingbats][file:ZapfDingbats][features=dingbats]

Re: [NTG-context] \dorecurse{}{} problem

[Aditya Mahajan]

On Mon, 21 Sep 2020, Jeong Dal wrote:

> Hi,
> 
> I tried to make a table using \dorecurse or \doloop as in the example.
> There is no error but \recurselevel is not increased, all are 0 in the first 
> example and only two rows are created with the \recurselevel 0 and 2 only in 
> the second example.
> 
> Does the tabulate cause the error?
> What is wrong in this MWE?

\dorecurse does not expand its arguments. See this old blog post for a 
discussion on this:

https://adityam.github.io/context-blog/post/tex-programming/

Aditya
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Re: [NTG-context] \recursestring undefined when inside \dorecurse

[Hans Hagen]

On 6/14/2020 11:41 PM, Pablo Rodriguez wrote:

Dear list,

I have the following sample:

 \starttext
 \dorecurse{25}{\recurselevel\par}
 \doloopoverstring{a,b,c}{\recursestring}
 }
 \stoptext

Both LMTX and MkIV complain about \recursestring for being undefined.

I wonder whether this is inteded or it is a bug.


intended, as there is no \doloopoverstring, it's
 \doloopoverlist {red,green,blue} {
[\recursestring]
}

(btw, you have one } too many)


-
  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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[NTG-context] \recursestring undefined when inside \dorecurse

[Pablo Rodriguez]

Dear list,

I have the following sample:

\starttext
\dorecurse{25}{\recurselevel\par}
\doloopoverstring{a,b,c}{\recursestring}
}
\stoptext

Both LMTX and MkIV complain about \recursestring for being undefined.

I wonder whether this is inteded or it is a bug.

Many thanks for your help,

Pablo
--
http://www.ousia.tk
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[NTG-context] \beginBLOCKS and \endBLOCKS do not work in \dorecurse

[Romain Diss]

Hi,

I cannot make \beginBLOCKS and \endBLOCKS work in a \dorecurse loop. Is
it possible?

Here is a minimum non working exemple (from
https://wiki.contextgarden.net/Command/defineblock):

%% 
\startdocument

\defineblock[question]
\hideblocks[question] % We don't want to print blocks where we define them

\dorecurse{2}{
\beginquestion[first]
To be, or not to be?
\endquestion

\section{Let's see what blocks we've got.}
\useblocks[question]

\section{We've seen what blocks we've got. Let's take another look at that 
first question.}
\useblocks[question][first]

\beginquestion[last]
Mais o\`u sont les neiges d'antan?
\endquestion
}

\stopdocument
%%

Thank you in advance.

Best.

-- 
Romain Diss
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Re: [NTG-context] dorecurse problem

[Otared Kavian]

> On 20 Jan 2017, at 18:00, Rik Kabel  wrote:
> […]
> 
> Otared,
> 
> I am not sure what you are doing, but if you are using only the code snippet 
> that Hans posted, you will get a blank page. You have to define the layer and 
> page background in addition to Hans' snippet.

Oh yes… sorry, I am ashamed :-(
I just put the code sent by Hans below your’s, and then commented out your 
code, including the definition of layers and backgounds…

Indeed everything works as expected with a buffer.

Best regards: OK
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Re: [NTG-context] dorecurse problem

[Rik Kabel]

On 2017-01-20 11:42, Otared Kavian wrote:

Hi Hans,

Unfortunately your workaround with \getbuffer does not produce the correct 
page: it gives only a blank page.

Thanks for your attention: OK


On 20 Jan 2017, at 10:08, Hans Hagen <pra...@wxs.nl> wrote:

On 1/20/2017 8:59 AM, Aditya Mahajan wrote:

On Thu, 19 Jan 2017, Rik Kabel wrote:


ConTeXters,

When \dorecurse is active in the following MWE, the lines of text are
overprinted. At least, this is the case for me, please confirm it for
yourself. When \dorecurse is disabled, the lines print as they should,
separately. Please tell me what I am doing wrong with this, if
anything, and how to fix it. (Running ConTeXt  ver: 2017.01.17 17:37
MKIV beta fmt: 2017.1.19 on Win10 x64. There are no errors in the log.)

This has nothing to do with \dorecurse, but due to the fact that the
argument of \dorecurse or any macro is parsed before the catcode changes
introduced by \startlines come into effect. Here is a simpler example
demonstrating similar behavior:

\def\test#1{#1}

\starttext
\test{Something
\startlines
Line one
Line two
\stoplines}
\stoptext

Depending on what you want to do, it should be possible to come up with
a workaround.

\startbuffer
  \startstandardmakeup
\setlayerframed
  [blocks]
  [preset=lefttop,
   frame=off,
   align=right]{
  \startlines
Line one on the left
Line two on the left
  \stoplines
}
\setlayerframed
  [blocks]
  [preset=righttop,
   frame=off,
   align=flushright]{
  \startlines
thgir eht no eno eniL
thgir eht no owt eniL
  \stoplines
}
  \stopstandardmakeup
\stopbuffer

\dorecurse{1}{
\getbuffer
}


___


Hans and Aditya,

Thank you for the explanation and the workaround.

Otared,

I am not sure what you are doing, but if you are using only the code 
snippet that Hans posted, you will get a blank page. You have to define 
the layer and page background in addition to Hans' snippet.


---
Rik

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Re: [NTG-context] dorecurse problem

[Otared Kavian]

Hi Hans,

Unfortunately your workaround with \getbuffer does not produce the correct 
page: it gives only a blank page.

Thanks for your attention: OK

> On 20 Jan 2017, at 10:08, Hans Hagen <pra...@wxs.nl> wrote:
> 
> On 1/20/2017 8:59 AM, Aditya Mahajan wrote:
>> On Thu, 19 Jan 2017, Rik Kabel wrote:
>> 
>>> ConTeXters,
>>> 
>>> When \dorecurse is active in the following MWE, the lines of text are
>>> overprinted. At least, this is the case for me, please confirm it for
>>> yourself. When \dorecurse is disabled, the lines print as they should,
>>> separately. Please tell me what I am doing wrong with this, if
>>> anything, and how to fix it. (Running ConTeXt  ver: 2017.01.17 17:37
>>> MKIV beta fmt: 2017.1.19 on Win10 x64. There are no errors in the log.)
>> 
>> This has nothing to do with \dorecurse, but due to the fact that the
>> argument of \dorecurse or any macro is parsed before the catcode changes
>> introduced by \startlines come into effect. Here is a simpler example
>> demonstrating similar behavior:
>> 
>> \def\test#1{#1}
>> 
>> \starttext
>> \test{Something
>> \startlines
>> Line one
>> Line two
>> \stoplines}
>> \stoptext
>> 
>> Depending on what you want to do, it should be possible to come up with
>> a workaround.
> 
> \startbuffer
>  \startstandardmakeup
>\setlayerframed
>  [blocks]
>  [preset=lefttop,
>   frame=off,
>   align=right]{
>  \startlines
>Line one on the left
>Line two on the left
>  \stoplines
>}
>\setlayerframed
>  [blocks]
>  [preset=righttop,
>   frame=off,
>   align=flushright]{
>  \startlines
>thgir eht no eno eniL
>thgir eht no owt eniL
>  \stoplines
>}
>  \stopstandardmakeup
> \stopbuffer
> 
>\dorecurse{1}{
>\getbuffer
>}
> 
> -
>  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: [NTG-context] dorecurse problem

[Hans Hagen]

On 1/20/2017 8:59 AM, Aditya Mahajan wrote:

On Thu, 19 Jan 2017, Rik Kabel wrote:


ConTeXters,

When \dorecurse is active in the following MWE, the lines of text are
overprinted. At least, this is the case for me, please confirm it for
yourself. When \dorecurse is disabled, the lines print as they should,
separately. Please tell me what I am doing wrong with this, if
anything, and how to fix it. (Running ConTeXt  ver: 2017.01.17 17:37
MKIV beta fmt: 2017.1.19 on Win10 x64. There are no errors in the log.)


This has nothing to do with \dorecurse, but due to the fact that the
argument of \dorecurse or any macro is parsed before the catcode changes
introduced by \startlines come into effect. Here is a simpler example
demonstrating similar behavior:

\def\test#1{#1}

\starttext
\test{Something
\startlines
Line one
Line two
\stoplines}
\stoptext

Depending on what you want to do, it should be possible to come up with
a workaround.


\startbuffer
  \startstandardmakeup
\setlayerframed
  [blocks]
  [preset=lefttop,
   frame=off,
   align=right]{
  \startlines
Line one on the left
Line two on the left
  \stoplines
}
\setlayerframed
  [blocks]
  [preset=righttop,
   frame=off,
   align=flushright]{
  \startlines
thgir eht no eno eniL
thgir eht no owt eniL
  \stoplines
}
  \stopstandardmakeup
\stopbuffer

\dorecurse{1}{
\getbuffer
}

-
  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: [NTG-context] dorecurse problem

[Aditya Mahajan]

On Thu, 19 Jan 2017, Rik Kabel wrote:


ConTeXters,

When \dorecurse is active in the following MWE, the lines of text are 
overprinted. At least, this is the case for me, please confirm it for 
yourself. When \dorecurse is disabled, the lines print as they should, 
separately. Please tell me what I am doing wrong with this, if anything, 
and how to fix it. (Running ConTeXt  ver: 2017.01.17 17:37 MKIV beta 
fmt: 2017.1.19 on Win10 x64. There are no errors in the log.)


This has nothing to do with \dorecurse, but due to the fact that the 
argument of \dorecurse or any macro is parsed before the catcode changes 
introduced by \startlines come into effect. Here is a simpler example 
demonstrating similar behavior:


\def\test#1{#1}

\starttext
\test{Something
\startlines
Line one
Line two
\stoplines}
\stoptext

Depending on what you want to do, it should be possible to come up with a 
workaround.


Aditya

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Re: [NTG-context] dorecurse problem

[Otared Kavian]

Hi Rik,

I can confirm the behaviour you are reporting (even without 
\startstandardmakeup—\stopstandardmakeup, but adding a line of text in the 
document in order to have an output).
It seems that \dorecurse suppresses the passage to another line, since if one 
says \dorecurse{10} the texts in the framed layer are typeset ten times on the 
same line, as if the command \startlines were not there.

Best regards: OK

> On 20 Jan 2017, at 04:34, Rik Kabel <cont...@rik.users.panix.com> wrote:
> 
> ConTeXters,
> 
> When \dorecurse is active in the following MWE, the lines of text are 
> overprinted. At least, this is the case for me, please confirm it for 
> yourself. When \dorecurse is disabled, the lines print as they should, 
> separately. Please tell me what I am doing wrong with this, if anything, and 
> how to fix it. (Running ConTeXt  ver: 2017.01.17 17:37 MKIV beta  fmt: 
> 2017.1.19 on Win10 x64. There are no errors in the log.)
> 
>   \definelayer
> [blocks]
> [width=\textwidth,
>  height=\textheight]
> 
>   \setupbackgrounds
>     [page]
> [background=blocks]
> 
>   \starttext
> \dorecurse{1}{  % comment to clear error
>   \startstandardmakeup
> \setlayerframed
>   [blocks]
>   [preset=lefttop,
>frame=off,
>align=right]{
>   \startlines
> Line one on the left
> Line two on the left
>   \stoplines
> }
> \setlayerframed
>   [blocks]
>   [preset=righttop,
>frame=off,
>align=flushright]{
>   \startlines
> thgir eht no eno eniL
> thgir eht no owt eniL
>   \stoplines
> }
>   \stopstandardmakeup
> }   % comment to clear error
>   \stoptext
> 
> -- 
> Rik

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[NTG-context] dorecurse problem

[Rik Kabel]

ConTeXters,

When \dorecurse is active in the following MWE, the lines of text are 
overprinted. At least, this is the case for me, please confirm it for 
yourself. When \dorecurse is disabled, the lines print as they should, 
separately. Please tell me what I am doing wrong with this, if anything, 
and how to fix it. (Running ConTeXt  ver: 2017.01.17 17:37 MKIV beta  
fmt: 2017.1.19 on Win10 x64. There are no errors in the log.)


   \definelayer
 [blocks]
 [width=\textwidth,
  height=\textheight]

   \setupbackgrounds
 [page]
 [background=blocks]

   \starttext
 \dorecurse{1}{  % comment to clear error
   \startstandardmakeup
 \setlayerframed
   [blocks]
   [preset=lefttop,
frame=off,
align=right]{
   \startlines
 Line one on the left
 Line two on the left
   \stoplines
 }
 \setlayerframed
   [blocks]
   [preset=righttop,
frame=off,
align=flushright]{
   \startlines
 thgir eht no eno eniL
 thgir eht no owt eniL
   \stoplines
 }
   \stopstandardmakeup
 }   % comment to clear error
   \stoptext

--
Rik

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Re: [NTG-context] \startanimation and \dorecurse

[Jeong Dal]

Dear Wolfgang,

According to your advice, I am able to make a working example as following.

\usemodule[animation]
\setupinteraction[state=start]

\startuseMPgraphic{Circles}{s}
numeric sn, L, N;
path p, q;
p := fullcircle scaled 72;
L:=length p;
N:=20;
sn := \MPvar{s};

q := subpath (0, sn/N*L) of p;%
draw q withcolor red;
fill fullcircle scaled 3 shifted point length q of q withcolor blue;
setbounds currentpicture to unitsquare shifted (-0.5,-0.5) scaled 75;
\stopuseMPgraphic

\starttext

\startanimation[menu=yes, menucolor=blue, framerate=5]
\dorecurse{20}
{\expanded{\frame{
\useMPgraphic{Circles}{s=\recurselevel
\stopanimation

\stoptext


One more question.

In metafun document, there is a command \setupMPvariables before 
\startuseMPgraphic. But we don’t use it in this example. 
Hence I think that it is not necessary always. Is there any case in which we 
have set the MPvariables?

Thank you.

Best regards,

Dalyoung
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Re: [NTG-context] \startanimation and \dorecurse

[Jeong Dal]

Dear Wolfgang,

Thank you for a nice solution.

I applied your method to produce an animation which draw a circle using the 
following:


\usemodule[animation]
\setupinteraction[state=start]
\startuseMPgraphic{Circles}{s}
numeric sn, L, N;
path p, q;
p := fullcircle scaled 72;
L:=length p;
N:=20;
sn:= \MPvar{s};
q := subpath (0, sn/N*L) of p;%
draw q withcolor red;
fill fullcircle scaled 3 shifted point length q of q withcolor blue;
setbounds currentpicture to unitsquare shifted (-0.5,-0.5) scaled 75;
\stopuseMPgraphic
\starttext
\startanimation
\dorecurse{20}
{\startexpanded
%\setupMPvariables[Circles][s]
\useMPgraphic{Circles}{s=\recurselevel}
\stopexpanded}
\stopanimation
\stoptext
%%

However, it just draw 20 figures instead of making an animation.

Would you please tell me what is wrong in the above code?

Thank you.

Best regards,

Dalyoung
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Re: [NTG-context] \startanimation and \dorecurse

[Wolfgang Schuster]

 Am 21.10.2014 um 14:08 schrieb Jeong Dal hak...@me.com:
 
 Dear Wolfgang,
 
 Thank you for a nice solution.
 
 I applied your method to produce an animation which draw a circle using the 
 following:
 
 
 \usemodule[animation]
 \setupinteraction[state=start]
 \startuseMPgraphic{Circles}{s}
 numeric sn, L, N;
 path p, q;
 p := fullcircle scaled 72;
 L:=length p;
 N:=20;
 sn:= \MPvar{s};
 q := subpath (0, sn/N*L) of p;%
 draw q withcolor red;
 fill fullcircle scaled 3 shifted point length q of q withcolor blue;
 setbounds currentpicture to unitsquare shifted (-0.5,-0.5) scaled 75;
 \stopuseMPgraphic
 \starttext
 \startanimation
 \dorecurse{20}
 {\startexpanded
 %\setupMPvariables[Circles][s]
 \useMPgraphic{Circles}{s=\recurselevel}
 \stopexpanded}
 \stopanimation
 \stoptext
 %%
 
 However, it just draw 20 figures instead of making an animation.
 
 Would you please tell me what is wrong in the above code?

You have to put each meatiest graphic into a frame, there are three ways to 
create a frame.

1. Use braces around the frame

\startanimation
  {First frame}
  {Second frame}
  {Third frame}
\stopanimation

This method doesn’t work in your case where you use \dorecurse to create the 
graphics.


2. Use the \frame command.

\startanimation
  \frame{First frame}
  \frame{Second frame}
  \frame{Third frame}
\stopanimation

In this case the \frame command is used store the content for each frame, this 
can be used
when you create all frames with a loop like in your case, e.g.

\dorecurse{10}{\expanded{\frame{\useMPPgraphic{…}{var=\recurselevel


3. Use the \startframe environment.

\startanimation
  \startframe First frame \stopframe
  \startframe Second frame \stopframe
  \startframe Third frame \stopframe
\stopaniamtion

This is the same as the second method except that you use star/stop delimiters
for each frame content instead of putting it into a argument.

Wolfgang
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[NTG-context] \startanimation and \dorecurse

[Jeong Dal]

Hi,

I tested the following simple code to generate enlarging circles as a test of 
animation.
But it just draw 5 circles in a row.

\usemodule[animation]
\setupinteraction[state=start]
\startbuffer[Circles]
numeric u; u:= 1cm;
draw fullcircle scaled \MPrawvar{Circles}{s}u;
\stopbuffer
\starttext
\startanimation
{ \dorecurse{5}{%
\setupMPvariables[Circles][s=\recurselevel]
\processMPbuffer [Circles]
}}
\stopanimation
\stoptext

It seems to me that \startanimation just treat the figures 
{\dorecurse … } as just one figure.

Is there a way to treat it 5 figures to generate animation? 

Thank you for reading.

Best regards,

Dalyoung


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Re: [NTG-context] \startanimation and \dorecurse

[Wolfgang Schuster]

 Am 20.10.2014 um 13:32 schrieb Jeong Dal hak...@me.com:
 
 Hi,
 
 I tested the following simple code to generate enlarging circles as a test of 
 animation.
 But it just draw 5 circles in a row.
 
 \usemodule[animation]
 \setupinteraction[state=start]
 \startbuffer[Circles]
 numeric u; u:= 1cm;
 draw fullcircle scaled \MPrawvar{Circles}{s}u;
 \stopbuffer
 \starttext
 \startanimation
 { \dorecurse{5}{%
 \setupMPvariables[Circles][s=\recurselevel]
 \processMPbuffer [Circles]
 }}
 \stopanimation
 \stoptext
 
 It seems to me that \startanimation just treat the figures 
 {\dorecurse … } as just one figure.
 
 Is there a way to treat it 5 figures to generate animation? 
 
 Thank you for reading.

1. You have to expand the \recurselevel value.

2. Don’t put braces around \dorecurse because when \startanimation sees a 
opening braces it assumes you want to put each frame into a group of braces.


Variant 1:

\usemodule[animation]

\setupinteraction[state=start]

\startbuffer[Circles]
numeric u; u:= 1cm;
draw fullcircle scaled \MPrawvar{Circles}{s}u;
\stopbuffer

\starttext

\startanimation
\dorecurse{5}
  {\startexpanded
 \startframe
   \setupMPvariables[Circles][s=\recurselevel]
   \processMPbuffer [Circles]
 \stopframe
   \stopexpanded}
\stopanimation

\stoptext


Variant 2:

\usemodule[animation]

\setupinteraction[state=start]

\startuseMPgraphic{Circles}{s}
numeric u; u:= 1cm;
draw fullcircle scaled \MPvar{s}u;
\stopuseMPgraphic

\starttext

\startanimation
\dorecurse{5}
  {\startexpanded
 \frame{\useMPgraphic{Circles}{s=\recurselevel}}%
   \stopexpanded}
\stopanimation

\stoptext

Wolfgang
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Re: [NTG-context] reset blocks with dorecurse

[DesdeChaves]

Please, can someone provide some assistance in resolving this problem, if
possible. I need to prepare a worksheet for Friday and I'm having this
problem, ie, each worksheet show the hints and the answers of all
worksheets.


thanks in advance

Jorge


2014/1/14 DesdeChaves desdecha...@gmail.com

 Is there a way to empty the blocks after each recurse cycle.
 If i make three exams with the command \dorecurse[3], in the first exam i
 found the hints and the answers of all exams.

 I try with the commands \resetnumber[hint, answer], but don't work.

  begin question-hint-answer-blocks.tex
 \defineblock[question]
 \defineblock[hint]
 \defineblock[answer]

 \defineenumeration[question]
 [alternative=hanging,
 width=2.5cm,
 text={Question},
 headstyle={\bi},
 stopper={.}]

 \defineenumeration[hint]
 [alternative=hanging,
 width=4cm,
 text={Hint for question},
 headstyle={\bi},
 stopper={.}]

 \defineenumeration[answer]
 [alternative=hanging,width=4.5cm,
 text={Answer to question},
 headstyle={\bi},
 stopper={.}]

 \setupblock[question][before={\startquestion},after={\stopquestion}]
 \setupblock[hint][before={\starthint},after={\stophint}]
 \setupblock[answer][before={\startanswer},after={\stopanswer}]
 \keepblocks[question]
 \hideblocks[hint]
 \hideblocks[answer]




 \startsetups examn:make

 \resetnumber[answer]
 \resetnumber[question]
 \resetnumber[hint]
 \page
 \setcounter[userpage][1]
 \centerline{\kap{Maths}}
  \centerline{\kap{Worksheet}}  \crlf
  Name:\thinrules[n=1]%, interlinespace=big]
 Evaluation:\thinrules[n=1]%, interlinespace=big]


 \getbuffer[examn]

 \stopsetups

 \starttext
 \setuppagenumbering[state=stop]
 \startbuffer[examn]

 \section{Questions}

 \beginquestion
   Compute $4\times 5$.



 \endquestion

 \beginhint
   Use the fact that $2\times 5 = 10$.
 \endhint

 \beginanswer
   $20$.
 \endanswer

 \beginquestion
   What is the value of $100 / 10$?
 \endquestion

 \beginhint
 Remember that $10\times 10 = 100$.
 \endhint

 \beginanswer
 $10$
 \endanswer

 \section{Hints to all questions}

 \useblocks[hint]

 \section{Answers to all questions}

 \useblocks[answer]

 \setuppagenumber[number=1]
 \stopbuffer

 \setuprandomize[124] % set a seed


 \dorecurse{3} {\setups[examn:make]}

 \stoptext

 Thanks a lot

 Jorge




-- 
Atentamente

DesdeChaves
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Re: [NTG-context] reset blocks with dorecurse

[Wolfgang Schuster]

Am 15.01.2014 um 15:06 schrieb DesdeChaves desdecha...@gmail.com:

 Please, can someone provide some assistance in resolving this problem, if 
 possible. I need to prepare a worksheet for Friday and I'm having this 
 problem, ie, each worksheet show the hints and the answers of all worksheets.

There is no command to reset a block, to create the different worksheets you 
have to process your document three times (don’t forget to delete the temporary 
files because the randomseed won’t change otherwise).

Wolfgang

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Re: [NTG-context] reset blocks with dorecurse

[DesdeChaves]

Thank you.

Jorge


2014/1/15 Wolfgang Schuster schuster.wolfg...@gmail.com


 Am 15.01.2014 um 15:06 schrieb DesdeChaves desdecha...@gmail.com:

 Please, can someone provide some assistance in resolving this problem, if
 possible. I need to prepare a worksheet for Friday and I'm having this
 problem, ie, each worksheet show the hints and the answers of all
 worksheets.


 There is no command to reset a block, to create the different worksheets
 you have to process your document three times (don’t forget to delete the
 temporary files because the randomseed won’t change otherwise).

 Wolfgang



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 ___




-- 
Atentamente

DesdeChaves
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[NTG-context] reset blocks with dorecurse

[DesdeChaves]

Is there a way to empty the blocks after each recurse cycle.
If i make three exams with the command \dorecurse[3], in the first exam i
found the hints and the answers of all exams.

I try with the commands \resetnumber[hint, answer], but don't work.

 begin question-hint-answer-blocks.tex
\defineblock[question]
\defineblock[hint]
\defineblock[answer]

\defineenumeration[question]
[alternative=hanging,
width=2.5cm,
text={Question},
headstyle={\bi},
stopper={.}]

\defineenumeration[hint]
[alternative=hanging,
width=4cm,
text={Hint for question},
headstyle={\bi},
stopper={.}]

\defineenumeration[answer]
[alternative=hanging,width=4.5cm,
text={Answer to question},
headstyle={\bi},
stopper={.}]

\setupblock[question][before={\startquestion},after={\stopquestion}]
\setupblock[hint][before={\starthint},after={\stophint}]
\setupblock[answer][before={\startanswer},after={\stopanswer}]
\keepblocks[question]
\hideblocks[hint]
\hideblocks[answer]




\startsetups examn:make

\resetnumber[answer]
\resetnumber[question]
\resetnumber[hint]
\page
\setcounter[userpage][1]
\centerline{\kap{Maths}}
 \centerline{\kap{Worksheet}}  \crlf
 Name:\thinrules[n=1]%, interlinespace=big]
Evaluation:\thinrules[n=1]%, interlinespace=big]


\getbuffer[examn]

\stopsetups

\starttext
\setuppagenumbering[state=stop]
\startbuffer[examn]

\section{Questions}

\beginquestion
  Compute $4\times 5$.



\endquestion

\beginhint
  Use the fact that $2\times 5 = 10$.
\endhint

\beginanswer
  $20$.
\endanswer

\beginquestion
  What is the value of $100 / 10$?
\endquestion

\beginhint
Remember that $10\times 10 = 100$.
\endhint

\beginanswer
$10$
\endanswer

\section{Hints to all questions}

\useblocks[hint]

\section{Answers to all questions}

\useblocks[answer]

\setuppagenumber[number=1]
\stopbuffer

\setuprandomize[124] % set a seed


\dorecurse{3} {\setups[examn:make]}

\stoptext

Thanks a lot

Jorge
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[NTG-context] \dorecurse and \startcombination

[Alan BRASLAU]

Hello,

Does anyone have a suggestion how to use \dorecurse within combinations?
(without having to use lua...)

Alan

minimal example:

\starttext
\startcombination [2]
\dorecurse{2}{{#1}{#1}}
\stopcombination
\stoptext


! Missing { inserted.

system   tex  error on line 3 in file foo.tex: Missing { inserted ...

1 \starttext
2 \startcombination [2]
3   \dorecurse{2}{{#1}{#1}}
4 \stopcombination
5 \stoptext
6 

to be read again 
   \global 
\syst_helpers_recurse_x #1#2-\global 
  \advance \outerrecurse \plusone \globa...
l.3 \dorecurse{2}{{#1}{#1}}
   
? 
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[NTG-context] \dorecurse within TABLE

[Alan BRASLAU]

Does anyone have a solution to \dorecurse within TABLE?
Alan

Minimal example:

\starttext
\dorecurse{8}{\recurselevel\crlf}

\bTABLE
\dorecurse{8}{\bTR\bTD\recurselevel\eTD\eTR}
\eTABLE
\stoptext
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Re: [NTG-context] \dorecurse within TABLE

[luigi scarso]

On Fri, Oct 26, 2012 at 11:50 AM, Alan BRASLAU alan.bras...@cea.fr wrote:

 Does anyone have a solution to \dorecurse within TABLE?
 Alan

 Minimal example:

 \starttext
 \dorecurse{8}{\recurselevel\crlf}

 \bTABLE
 \dorecurse{8}{\bTR\bTD\recurselevel\eTD\eTR}
 \eTABLE
 \stoptext

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table are strange, they can be parsed more than one time to achive the
result
If you use mkiv maybe the lua version is better
\starttext
\dorecurse{8}{\recurselevel\crlf}
\startluacode
global_cnt=0;
\stopluacode
\bTABLE
%% ok, but why 17 ?
\dorecurse{8}{\bTR\bTD\ctxlua{global_cnt=global_cnt+1;context(global_cnt-17)}:\recurselevel\eTD\eTR}
\eTABLE

%% straight
\startluacode
context.bTABLE()
for i=1,8 do
context.bTR()
context.bTD() context(i) context.eTD()
context.eTR()
end
context.eTABLE()
\stopluacode

\stoptext

-- 
luigi
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Re: [NTG-context] \dorecurse within TABLE

[Marco Patzer]

2012-10-26 Alan BRASLAU:

 Does anyone have a solution to \dorecurse within TABLE?
 Alan
 
 Minimal example:
 
 \starttext
 \dorecurse{8}{\recurselevel\crlf}
 
 \bTABLE

 \dorecurse{8}{\bTR\bTD\recurselevel\eTD\eTR}

\dorecurse{8}{\expanded{\bTR\bTD\recurselevel\eTD\eTR}}

 \eTABLE
 \stoptext


Marco

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Re: [NTG-context] \dorecurse within TABLE

[Alan BRASLAU]

On Fri, 26 Oct 2012 12:27:09 +0200
Marco Patzer home...@lavabit.com wrote:
 
 \dorecurse{8}{\expanded{\bTR\bTD\recurselevel\eTD\eTR}}

Thank you. And I found something new to understand:

http://wiki.contextgarden.net/System_Macros/Expansion_Control


Now, is there some better way, or perhaps not, around creating my own
counter (of course, I can use a counter for the column as well...)

\starttext
\bTABLE
\definenumber[row]
\dorecurse{8}{\incrementnumber[row]
\bTR
\dorecurse{5}{\expanded{\bTD \getnumber[row],\recurselevel \eTD}} \eTR }
\eTABLE
\stoptext
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Re: [NTG-context] \dorecurse within TABLE

[Wolfgang Schuster]

Am 26.10.2012 um 15:03 schrieb Alan BRASLAU alan.bras...@cea.fr:

 On Fri, 26 Oct 2012 12:27:09 +0200
 Marco Patzer home...@lavabit.com wrote:
 
 \dorecurse{8}{\expanded{\bTR\bTD\recurselevel\eTD\eTR}}
 
 Thank you. And I found something new to understand:
 
 http://wiki.contextgarden.net/System_Macros/Expansion_Control
 
 
 Now, is there some better way, or perhaps not, around creating my own
 counter (of course, I can use a counter for the column as well...)
 
 \starttext
 \bTABLE
 \definenumber[row]
 \dorecurse{8}{\incrementnumber[row]
   \bTR
   \dorecurse{5}{\expanded{\bTD \getnumber[row],\recurselevel \eTD}} \eTR }
 \eTABLE
 \stoptext

\starttext
\bTABLE
\dorecurse{8}{\bTR\dorecurse{5}{\bTD #1,##1 \eTD}\eTR}
\eTBALE
\stoptext

Wolfgang
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Re: [NTG-context] \dorecurse within TABLE

[Marco Patzer]

2012-10-26 Alan BRASLAU:

 Now, is there some better way, or perhaps not, around creating my own
 counter (of course, I can use a counter for the column as well...)

You can use \currentTABLEcolumn and \currentTABLErow

\starttext
\bTABLE
  \dorecurse{8}{
\bTR
\dorecurse{5}{\bTD \currentTABLErow,\currentTABLEcolumn \eTD} \eTR }
  \eTABLE
\stoptext


Marco

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Re: [NTG-context] \dorecurse within TABLE

[Alan BRASLAU]

Helps to read the wiki, with a link to:

http://randomdeterminism.wordpress.com/2009/03/05/tex-programming-the-past-the-present-and-the-future/

Simple enough:

\starttext
\bTABLE
\dorecurse{8}{
\bTR
\dorecurse{5}{\bTD \the\numexpr#1,\the\numexpr##1 \eTD}
\eTR
}
\eTABLE
\stoptext

Alan

On Fri, 26 Oct 2012 15:03:59 +0200
Alan BRASLAU alan.bras...@cea.fr wrote:

 On Fri, 26 Oct 2012 12:27:09 +0200
 Marco Patzer home...@lavabit.com wrote:
  
  \dorecurse{8}{\expanded{\bTR\bTD\recurselevel\eTD\eTR}}
 
 Thank you. And I found something new to understand:
 
 http://wiki.contextgarden.net/System_Macros/Expansion_Control
 
 
 Now, is there some better way, or perhaps not, around creating my own
 counter (of course, I can use a counter for the column as well...)
 
 \starttext
 \bTABLE
 \definenumber[row]
 \dorecurse{8}{\incrementnumber[row]
   \bTR
   \dorecurse{5}{\expanded{\bTD \getnumber[row],\recurselevel
 \eTD}} \eTR } \eTABLE
 \stoptext

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Re: [NTG-context] dorecurse in table

[Aditya Mahajan]

On Mon, 6 Sep 2010, Cecil Westerhof wrote:


The following code does what I want:
   \blank
   \SetTableToWidth{\textwidth}
   \starttable[|lp(0.90\textwidth)|]
   Some text \SR
   \SR
   \HL
   \SR
   \HL
   \SR
   \HL
   \SR
   \HL
   \stoptable
   \blank


The correct syntax is \NC ... \NC \SR but that doesn't solve the problem 
in this case.



I would think that the following code is equivalent:
   \blank
   \SetTableToWidth{\textwidth}
   \starttable[|lp(0.90\textwidth)|]
   Some text \SR
   \dorecurse{4}{
 \SR
 \HL
   }
   \stoptable
   \blank

But it is not. I get:
   Underfull \hbox (badness 1) in alignment at lines 39--49
   [][][][][]
   ! Misplaced \noalign.
   \TABLEnoalign -\noalign
\bgroup \let \noalign \relax \let \next =
   \insertTABLEtail -\TABLEnoalign
{\global \settrue \preventTABLEbreak 
\globa...

   \stoptable -\chuckTABLEautorow \insertTABLEtail
\TABLEnoalign 
{\globalletem...
   l.60 \stoptable
and h gives:
   I expect to see \noalign only after the \cr of
   an alignment. Proceed, and I'll ignore this case.

What am I doing wrong?


Table and expansion are tricky. The error is caused by the last \HL and 
goes away if you add another line.


But if you only want four horizontal lines, why not use \thinrules

\thinrules[n=4]

Also have a look at m-educat.tex (look at the example in the end of the 
file) which is essentially a fancy wrapper around \thinrules.


I don't know if \thinrules are documented in a manual, but pack-rul.mkiv 
gives a  few examples:



\starttext
A couple of examples are given below.

\startbuffer
\setupthinrules[n=3,inbetween=,color=gray]

test test \thinrules\ test test \par
test test \thinrules [color=green] test test \par
test test \thinrules [height=max, depth=max] test test \par

\setupthinrules[height=.9,depth=.9]

test test \thinrules\ test test \par
test test \thinrules [alternativevariant=b] test test \par
test test \thinrules [alternativevariant=c] test test \par
test test \thinrules [alternativevariant=c,inbetween=\vskip2ex] test test 
\par

\stopbuffer

\typebuffer {\getbuffer}

There are a couple of alternative ways to visualize rules
using backgrounds. At first sight these may look strange,
but they make sense in educational settings. The
alternatives are more or less compatible with the more
advanced \METAPOST\ based implementation.

\startbuffer[a]
\setupthinrules
  [n=2,
   backgroundcolor=gray  ,
   rulethickness=1pt,
   colorkleur=donkerblauw,
   after=\blank,
   before=\blank]
\stopbuffer

\typebuffer[a]

\startbuffer[b]
\thinrules[alternativevariant=a]
\thinrules[alternativevariant=b]
\thinrules[alternativevariant=c]
\stopbuffer

\typebuffer[b] \getbuffer[a,b]

\startbuffer[b]
\thinrules[alternativevariant=a,background=color]
\thinrules[alternativevariant=b,background=color]
\thinrules[alternativevariant=c,background=color]
\stopbuffer

\typebuffer[b] \getbuffer[a,b]

\startbuffer[b]
\thinrules[alternativevariant=a,height=.8,depth=.8,background=color]
\thinrules[alternativevariant=b,height=.8,depth=.8,background=color]
\thinrules[alternativevariant=c,height=.8,depth=.8,background=color]
\stopbuffer

\typebuffer[b] \getbuffer[a,b]
\stoptext


Aditya
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Re: [NTG-context] dorecurse in table

[Cecil Westerhof]

Op maandag 6 sep 2010 23:18 CEST schreef Aditya Mahajan:

 The following code does what I want:
 \blank
 \SetTableToWidth{\textwidth}
 \starttable[|lp(0.90\textwidth)|]
 Some text \SR
 \SR
 \HL
 \SR
 \HL
 \SR
 \HL
 \SR
 \HL
 \stoptable
 \blank

[CUT]

 Table and expansion are tricky. The error is caused by the last \HL and
 goes away if you add another line.

 But if you only want four horizontal lines, why not use \thinrules

 \thinrules[n=4]

That is what I want. I have now defined the following much simpler
macro:
\def\GetComment[#1]{
  \blank
  #1\par
  \thinrules[n=4]
  \blank
}

and I call it with:
\GetComment[What was the most useful for you?]

-- 
Cecil Westerhof
M cldwester...@gmail.com

O ascii ribbon campaign - stop html mail - www.asciiribbon.org

Please do not send me Microsoft Office/Apple iWork documents.
Send OpenDocument instead! http://fsf.org/campaigns/opendocument/
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[NTG-context] dorecurse...

[Willi Egger]

Hello,

I was busy to build a larger table with a lot of empty but numbered  
rows. So I thought to use the \dorecurse macro to help me.


Now I can't recall the actual value of \recurselevel. Interestingly  
it fails only when calling for preparing whole rows in the table.  
When the \recurselevel is retrieved in normal text it works as expected.


Please refer to the attached minimal example-file.

Is there something changed in calling for the \recurselevel value?

Kind regards

Willi



test-recurselevel.tex
Description: Binary data
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Re: [NTG-context] dorecurse...

[Wolfgang Schuster]

Am 21.02.10 11:37, schrieb Willi Egger:

Hello,

I was busy to build a larger table with a lot of empty but numbered 
rows. So I thought to use the \dorecurse macro to help me.


Now I can't recall the actual value of \recurselevel. Interestingly it 
fails only when calling for preparing whole rows in the table. When 
the \recurselevel is retrieved in normal text it works as expected.


Please refer to the attached minimal example-file.

Is there something changed in calling for the \recurselevel value?

No, that's normal for TABLE and tabulate.

\starttext

\bTABLE
\dorecurse{3}{\expanded{\bTR\bTD\recurselevel\eTD\eTR}}
\eTABLE

\starttabulate[|l|]
\dorecurse{3}{\expanded{\NC\recurselevel\NC\NR}}
\stoptabulate

\starttabulate[|p|]
\NC\dorecurse{5}{\recurselevel\par}\NC\NR
\stoptabulate

\page

\bTABLE
\dorecurse{3}{\bTR\bTD#1\eTD\eTR}
\eTABLE

\starttabulate[|l|]
\dorecurse{3}{\NC##1\NC\NR}
\stoptabulate

\starttabulate[|p|]
\NC\dorecurse{5}{##1\par}\NC\NR
\stoptabulate

\stoptext

Wolfgang

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Re: [NTG-context] dorecurse...

[Willi Egger]

Hello Wolfgang,

Thank yo very much, indeed!

Hm, that I see your answer I think I have seen this earlier :-(


Willi
On Feb 21, 2010, at 12:07 PM, Wolfgang Schuster wrote:


Am 21.02.10 11:37, schrieb Willi Egger:

Hello,

I was busy to build a larger table with a lot of empty but  
numbered rows. So I thought to use the \dorecurse macro to help me.


Now I can't recall the actual value of \recurselevel.  
Interestingly it fails only when calling for preparing whole rows  
in the table. When the \recurselevel is retrieved in normal text  
it works as expected.


Please refer to the attached minimal example-file.

Is there something changed in calling for the \recurselevel value?

No, that's normal for TABLE and tabulate.

\starttext

\bTABLE
\dorecurse{3}{\expanded{\bTR\bTD\recurselevel\eTD\eTR}}
\eTABLE

\starttabulate[|l|]
\dorecurse{3}{\expanded{\NC\recurselevel\NC\NR}}
\stoptabulate

\starttabulate[|p|]
\NC\dorecurse{5}{\recurselevel\par}\NC\NR
\stoptabulate

\page

\bTABLE
\dorecurse{3}{\bTR\bTD#1\eTD\eTR}
\eTABLE

\starttabulate[|l|]
\dorecurse{3}{\NC##1\NC\NR}
\stoptabulate

\starttabulate[|p|]
\NC\dorecurse{5}{##1\par}\NC\NR
\stoptabulate

\stoptext

Wolfgang

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Re: [NTG-context] dorecurse...

[Wolfgang Schuster]

Am 21.02.10 17:51, schrieb Willi Egger:

Hm, that I see your answer I think I have seen this earlier :-(

http://randomdeterminism.wordpress.com/2009/03/05/tex-programming-the-past-the-present-and-the-future/

Wolfgang

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Re: [NTG-context] dorecurse...

[Willi Egger]

No! Even with a comment on my own account ;-( very bad!

Thanks

Willi
On Feb 21, 2010, at 5:57 PM, Wolfgang Schuster wrote:


Am 21.02.10 17:51, schrieb Willi Egger:


Hm, that I see your answer I think I have seen this earlier :-(
http://randomdeterminism.wordpress.com/2009/03/05/tex-programming- 
the-past-the-present-and-the-future/


Wolfgang

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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[Wolfgang Schuster]

Am 06.03.2009 um 07:41 schrieb luigi scarso:



My summary of this thread:
http://randomdeterminism.wordpress.com/2009/03/05/tex-programming-the-past-the-present-and-the-future/

It's exactly what I think .

Thank you very much.


Nice article, it fits perfectly in the programming section of the wiki.

Thank your for the summary.

Wolfgang

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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[Willi Egger]

Hi Aditya,

Happy luaTeXing. Great summary.

Willi

On Mar 6, 2009, at 4:05 AM, Aditya Mahajan wrote:


On Thu, 5 Mar 2009, luigi scarso wrote:


On Thu, Mar 5, 2009 at 12:09 PM, Wolfgang Schuster
schuster.wolfg...@googlemail.com wrote:


Am 05.03.2009 um 01:17 schrieb luigi scarso:


\starttext
%%% TeX version
\bTABLE
\dorecurse{5}
{\bTR\expandafter \bTD \recurselevel. \eTD\expandafter
   \bTD \recurselevel  \eTD\eTR}
\eTABLE

\dorecurse{2}
{\recurselevel. \recurselevel\crlf}


And you think it's a good idea to use \expandafter in your document?

TeX  version, not context ... :)
btw
\expandafer is not so bad, if used moderatly .



\expanded is the tool for users to get this result without knowledge
about TeX internals and expansion, this is from core-ntb:

% permits \expanded{\bTD ... \eTD}

\unexpanded\def\eTR{}
\unexpanded\def\eTD{}
\unexpanded\def\eTH{}
\unexpanded\def\eTN{}
yes, of course one need to know about \expandafter... so is not so  
different .

But it's context style.




%%% luatex version
\startluacode
  tprint = function(s) tex.sprint(tex.ctxcatcodes,s) end
  tprint('\\bTABLE')
  for j = 1,5 do
  tprint('\\bTR')
  tprint('\\bTD' .. j .. '.' .. '\\eTD' .. '\\bTD' .. j .. '\ 
\eTD')

  tprint('\\eTR')
  end
  tprint('\\eTABLE')
\stopluacode
\stoptext


Nice solution and real alternative for package writers to avoid  
\expandafter
and \expanded but nothing for a normal user, I should keep this  
in my mind.

Are you sure ?
What is a normal user ?
As soon as you use \dorecurse , you become a programmer .

And sooner or later, everyone become a programmer, because it's
impossible to write a format that satisfied
all your needs .


My summary of this thread:
http://randomdeterminism.wordpress.com/2009/03/05/tex-programming- 
the-past-the-present-and-the-future/


Aditya 
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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[Curious Learn]

Aditya Mahajan adityam at umich.edu writes:

 My summary of this thread:

http://randomdeterminism.wordpress.com/2009/03/05/tex-programming-the-past-the-present-and-the-future/
 
 Aditya

I like the Luatex code of Luigi. Though it is longer than what Wolfgang
suggested (and in this case, I am using Wolfgang's solution now that I know
about it), the luatex code seems to be the kind of programming that I am more
comfortable with. In fact, in Latex when I was trying to achieve this, I used
the python.sty package to code this in Python.

To be able to do this using Lua (Luatex), do I need to learn the Lua programming
language. Do I pick up any beginners book on Lua? Any recommendations based on
experience of those who use Luatex here.

For example, one of the lines in the code is 

 tprint = function(s) tex.sprint(tex.ctxcatcodes,s) end 

Is this Lua or LuaTex?

Thanks. 

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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[Arthur Reutenauer]

   Do I pick up any beginners book on Lua?

  There really is only one beginners book on Lua :-)  _Programming in
Lua_, by Roberto Ierusalimschy, the Lua author.  There are a few other
books, mostly about Lua and games, because Lua has become quite
popular in the gamers' community, but Roberto's book is really excellent
and makes a good tutorial.

 For example, one of the lines in the code is 
 
  tprint = function(s) tex.sprint(tex.ctxcatcodes,s) end 
 
 Is this Lua or LuaTex?

  The question does not really makes sense if you put it that way.  This
line of code is pure Lua, it is completely syntactically correct; but
you can't use as it a standalone Lua script, because it uses functions
that only LuaTeX and ConTeXt define (think of it as the action of
import in Python, except that here it's not available as a stand-alone
library call; it's built into LuaTeX).

  Hence, if you want to become proficient in Lua programming in ConTeXt,
you need to learn:

  * The Lua programming language, with its core libraries (covered in
the aforementioned book).

  * The Lua libraries that LuaTeX adds to Lua, documented in the LuaTeX
manual.

  * The Lua libraries that ConTeXt adds to LuaTeX.

  The above line of code is really a mixture of the three, but in any
case, the ground stone is always Lua.

Arthur
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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[luigi scarso]

 I like the Luatex code of Luigi. Though it is longer than what Wolfgang
 suggested (and in this case, I am using Wolfgang's solution now that I know
 about it), the luatex code seems to be the kind of programming that I am more
 comfortable with. In fact, in Latex when I was trying to achieve this, I used
 the python.sty package to code this in Python.
The optimal  solution is that one of Wolfgang that uses \expanded .
The others are less than optimal.

 To be able to do this using Lua (Luatex), do I need to learn the Lua 
 programming
 language. Do I pick up any beginners book on Lua? Any recommendations based on
 experience of those who use Luatex here.
Programming in Lua ,
see www.lua.org



 For example, one of the lines in the code is

  tprint = function(s) tex.sprint(tex.ctxcatcodes,s) end

 Is this Lua or LuaTex?
luatex


-- 
luigi
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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[Wolfgang Schuster]

Am 06.03.2009 um 04:05 schrieb Aditya Mahajan:


My summary of this thread:
http://randomdeterminism.wordpress.com/2009/03/05/tex-programming-the-past-the-present-and-the-future/


Nice article but I have a few corrections for you.


Table setup:

To achieve horizontal and vertical centered content in the table cell
you need 'align={middle,lohi}'.


Pure table code:

You forgot the \bTR and \eTR before and after each row.


Expandafter solution:

You don't need as many \expandafter as you did in your example,
one before \bTD in each loop is enough.

\bTABLE
 \bTR
  \bTD $(+)$ \eTD
  \dorecurse{6}
   {\expandafter \bTD \recurselevel \eTD}
  \eTR
\dorecurse{6}
 {\bTR
 \edef\firstrecurselevel{\recurselevel}
 \expandafter\bTD \recurselevel \eTD
  \dorecurse{6}
{\expandafter
 \bTD
  \the\numexpr\firstrecurselevel+\recurselevel\relax
 \eTD}
  \eTR}
\eTABLE


\for loop:

If you really want to show this loop you also the correct
commands to access the counters. #1 did also work but only
because the command is wrapped around \dostepwiserecurse.

\bTABLE
  \bTR
\bTD $(+)$ \eTD
\for \y=1 \to 6 \step 1 \do
  {\bTD \y \eTD}
  \eTR
  \for \x=1 \to 6 \step 1 \do
  {\bTR
 \bTD \x \eTD
\for \y=1 \to 6 \step 1 \do
{\bTD \the\numexpr\x+\y \eTD}
  \eTR}
\eTABLE


Thank you for the article and I'm looking forward for the next.

Best regards,
Wolfgang

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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[Curious Learn]

Arthur and Luigi, thanks for your responses. Arthur, your response makes it very
clear, what I need to do. I will start with the book you recommend.



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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[Aditya Mahajan]

On Fri, 6 Mar 2009, Wolfgang Schuster wrote:



Am 06.03.2009 um 04:05 schrieb Aditya Mahajan:


My summary of this thread:
http://randomdeterminism.wordpress.com/2009/03/05/tex-programming-the-past-the-present-and-the-future/


Nice article but I have a few corrections for you.


Table setup:

To achieve horizontal and vertical centered content in the table cell
you need 'align={middle,lohi}'.


Hmm... align={middle,middle} also works. I haven't checked the code to see 
why.




Pure table code:

You forgot the \bTR and \eTR before and after each row.


Thanks.



Expandafter solution:

You don't need as many \expandafter as you did in your example,
one before \bTD in each loop is enough.

\bTABLE
\bTR
 \bTD $(+)$ \eTD
 \dorecurse{6}
  {\expandafter \bTD \recurselevel \eTD}
 \eTR
\dorecurse{6}
{\bTR
\edef\firstrecurselevel{\recurselevel}
\expandafter\bTD \recurselevel \eTD
 \dorecurse{6}
   {\expandafter
\bTD
 \the\numexpr\firstrecurselevel+\recurselevel\relax
\eTD}
 \eTR}
\eTABLE


Ah. I was experimenting without the \the\numexpr (replacing both by 
\relax) so that I could see the output. I did not realize that \numexpr 
expands its arguments anyways.


\for loop:

If you really want to show this loop you also the correct
commands to access the counters. #1 did also work but only
because the command is wrapped around \dostepwiserecurse.

\bTABLE
 \bTR
   \bTD $(+)$ \eTD
   \for \y=1 \to 6 \step 1 \do
 {\bTD \y \eTD}
 \eTR
 \for \x=1 \to 6 \step 1 \do
 {\bTR
\bTD \x \eTD
   \for \y=1 \to 6 \step 1 \do
   {\bTD \the\numexpr\x+\y \eTD}
 \eTR}
\eTABLE


This does not work, for the same reason that the \dorecurse solution does 
not work. You need to exapnad \x and \y in the first row and first column.



Thank you for the article and I'm looking forward for the next.


Thanks for the feedback.

Aditya
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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[Aditya Mahajan]

On Thu, 5 Mar 2009, Aditya Mahajan wrote:


On Thu, 5 Mar 2009, luigi scarso wrote:


On Thu, Mar 5, 2009 at 12:09 PM, Wolfgang Schuster
schuster.wolfg...@googlemail.com wrote:


Am 05.03.2009 um 01:17 schrieb luigi scarso:


\starttext
%%% TeX version
\bTABLE
\dorecurse{5}
{\bTR\expandafter \bTD \recurselevel. \eTD\expandafter
       \bTD \recurselevel  \eTD\eTR}
\eTABLE

\dorecurse{2}
{\recurselevel. \recurselevel\crlf}


And you think it's a good idea to use \expandafter in your document?

TeX  version, not context ... :)
btw
\expandafer is not so bad, if used moderatly .



\expanded is the tool for users to get this result without knowledge
about TeX internals and expansion, this is from core-ntb:

% permits \expanded{\bTD ... \eTD}

\unexpanded\def\eTR{}
\unexpanded\def\eTD{}
\unexpanded\def\eTH{}
\unexpanded\def\eTN{}
yes, of course one need to know about \expandafter... so is not so 
different .

But it's context style.




%%% luatex version
\startluacode
  tprint = function(s) tex.sprint(tex.ctxcatcodes,s) end
  tprint('\\bTABLE')
  for j = 1,5 do
      tprint('\\bTR')
      tprint('\\bTD' .. j .. '.' .. '\\eTD' .. '\\bTD' .. j .. '\\eTD')
      tprint('\\eTR')
  end
  tprint('\\eTABLE')
\stopluacode
\stoptext


Nice solution and real alternative for package writers to avoid 
\expandafter
and \expanded but nothing for a normal user, I should keep this in my 
mind.

Are you sure ?
What is a normal user ?
As soon as you use \dorecurse , you become a programmer .

And sooner or later, everyone become a programmer, because it's
impossible to write a format that satisfied
all your needs .


My summary of this thread:
http://randomdeterminism.wordpress.com/2009/03/05/tex-programming-the-past-the-present-and-the-future/


For fun: Using metapost

\setupcolors[state=start]
\setupTABLE[each][each][width=2em,height=2em,align={middle,middle}]
\setupTABLE[r][1][background=color,backgroundcolor=gray]
\setupTABLE[c][1][background=color,backgroundcolor=gray]

\let\normalbTABLE\bTABLE
\let\normaleTABLE\eTABLE

\unexpanded\def\bTABLE{\normalbTABLE}
\unexpanded\def\eTABLE{\normaleTABLE}

\unexpanded\def\dobTR{\dodoubleempty\parseTR}
\unexpanded\def\dobTD{\dodoubleempty\parseTD}
\unexpanded\def\dobTH{\dodoubleempty\parseTH}
\unexpanded\def\dobTN{\dodoubleempty\parseTN}

\let\bTR\dobTR
\let\bTD\dobTD
\let\bTH\dobTH
\let\bTN\dobTN

\starttext

\startMPcode
  string table ;
  table = \bTABLE \bTR \bTD $(+)$ \eTD 
for y = 1 upto 6 :
  \bTD   decimal y  \eTD  
endfor
\eTR  
for x = 1 upto 6 :
  \bTR \bTD   decimal x  \eTD  
  for y = 1 upto 6 :
   \bTD   decimal (x+y)  \eTD  
  endfor
  \eTR 
endfor
\eTABLE ;
  label(textext(table), origin) ;
\stopMPcode

\stoptext

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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[Wolfgang Schuster]

Am 06.03.2009 um 17:33 schrieb Aditya Mahajan:


Table setup:

To achieve horizontal and vertical centered content in the table cell
you need 'align={middle,lohi}'.


Hmm... align={middle,middle} also works. I haven't checked the code  
to see why.


I hadn't known this before but it's feature of framed, good to know.


Expandafter solution:


Ah. I was experimenting without the \the\numexpr (replacing both by  
\relax) so that I could see the output. I did not realize that  
\numexpr expands its arguments anyways.


The first recurselevel was expanded with your \edef and the second
with the \expandafter before \bTD.


\for loop:


This does not work, for the same reason that the \dorecurse solution  
does not work. You need to exapnad \x and \y in the first row and  
first column.


I should next time check the output. Sure, the same rules as \dorecurse
apply to the \for loop.

Wolfgang

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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[luigi scarso]

On Wed, Mar 4, 2009 at 8:53 PM, luigi scarso luigi.sca...@gmail.com wrote:
 On Wed, Mar 4, 2009 at 8:35 PM, Curious Learn curiousle...@gmail.com wrote:
 Can someone please explain why the second example below works but the first 
 does
 not work?
 Thanks very much.

 \starttext

 \bTABLE
 \dorecurse{5}
 {\bTR \bTD \recurselevel. \eTD
          \bTD \recurselevel  \eTD\eTR}
 \eTABLE

 \dorecurse{2}
 {\recurselevel. \recurselevel\crlf}

 \stoptext

 works ok here with latest minimals
 This is LuaTeX, Version snapshot-0.35.0-2009022702 (Web2C 7.5.7)
 ConTeXt  ver: 2008.11.10 21:40 MKIV  fmt: 2009.3.4  int: english/english
oops...I forget my code
sorry



\starttext
%%% TeX version
\bTABLE
\dorecurse{5}
{\bTR\expandafter \bTD \recurselevel. \eTD\expandafter
 \bTD \recurselevel  \eTD\eTR}
\eTABLE

\dorecurse{2}
{\recurselevel. \recurselevel\crlf}

%%% luatex version
\startluacode
tprint = function(s) tex.sprint(tex.ctxcatcodes,s) end
tprint('\\bTABLE')
for j = 1,5 do
tprint('\\bTR')
tprint('\\bTD' .. j .. '.' .. '\\eTD' .. '\\bTD' .. j .. '\\eTD')
tprint('\\eTR')
end
tprint('\\eTABLE')
\stopluacode
\stoptext


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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[Wolfgang Schuster]

Am 05.03.2009 um 01:17 schrieb luigi scarso:


\starttext
%%% TeX version
\bTABLE
\dorecurse{5}
{\bTR\expandafter \bTD \recurselevel. \eTD\expandafter
\bTD \recurselevel  \eTD\eTR}
\eTABLE

\dorecurse{2}
{\recurselevel. \recurselevel\crlf}


And you think it's a good idea to use \expandafter in your document?

\expanded is the tool for users to get this result without knowledge
about TeX internals and expansion, this is from core-ntb:

% permits \expanded{\bTD ... \eTD}

\unexpanded\def\eTR{}
\unexpanded\def\eTD{}
\unexpanded\def\eTH{}
\unexpanded\def\eTN{}


%%% luatex version
\startluacode
   tprint = function(s) tex.sprint(tex.ctxcatcodes,s) end
   tprint('\\bTABLE')
   for j = 1,5 do
   tprint('\\bTR')
   tprint('\\bTD' .. j .. '.' .. '\\eTD' .. '\\bTD' .. j .. '\ 
\eTD')

   tprint('\\eTR')
   end
   tprint('\\eTABLE')
\stopluacode
\stoptext


Nice solution and real alternative for package writers to avoid  
\expandafter
and \expanded but nothing for a normal user, I should keep this in my  
mind.


Wolfgang

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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[luigi scarso]

On Thu, Mar 5, 2009 at 12:09 PM, Wolfgang Schuster
schuster.wolfg...@googlemail.com wrote:

 Am 05.03.2009 um 01:17 schrieb luigi scarso:

 \starttext
 %%% TeX version
 \bTABLE
 \dorecurse{5}
 {\bTR\expandafter \bTD \recurselevel. \eTD\expandafter
        \bTD \recurselevel  \eTD\eTR}
 \eTABLE

 \dorecurse{2}
 {\recurselevel. \recurselevel\crlf}

 And you think it's a good idea to use \expandafter in your document?
TeX  version, not context ... :)
btw
\expandafer is not so bad, if used moderatly .


 \expanded is the tool for users to get this result without knowledge
 about TeX internals and expansion, this is from core-ntb:

 % permits \expanded{\bTD ... \eTD}

 \unexpanded\def\eTR{}
 \unexpanded\def\eTD{}
 \unexpanded\def\eTH{}
 \unexpanded\def\eTN{}
yes, of course one need to know about \expandafter... so is not so different .
But it's context style.


 %%% luatex version
 \startluacode
   tprint = function(s) tex.sprint(tex.ctxcatcodes,s) end
   tprint('\\bTABLE')
   for j = 1,5 do
       tprint('\\bTR')
       tprint('\\bTD' .. j .. '.' .. '\\eTD' .. '\\bTD' .. j .. '\\eTD')
       tprint('\\eTR')
   end
   tprint('\\eTABLE')
 \stopluacode
 \stoptext

 Nice solution and real alternative for package writers to avoid \expandafter
 and \expanded but nothing for a normal user, I should keep this in my mind.
Are you sure ?
What is a normal user ?
As soon as you use \dorecurse , you become a programmer .

And sooner or later, everyone become a programmer, because it's
impossible to write a format that satisfied
all your needs .




-- 
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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[Wolfgang Schuster]

Am 05.03.2009 um 12:27 schrieb luigi scarso:


And you think it's a good idea to use \expandafter in your document?

TeX  version, not context ... :)
btw
\expandafer is not so bad, if used moderatly .


But don't make a beginner used to it, e.g. Stefan Kottwitz mentioned a  
few
times how to append something to a existing macro in LaTeX forums and  
this

is what I try to avoid for people who don't know what they are doing.

http://texblog.net/latex-archive/plaintex/expandafter/

Nice solution and real alternative for package writers to avoid  
\expandafter
and \expanded but nothing for a normal user, I should keep this in  
my mind.

Are you sure ?
What is a normal user ?


People who want to use TeX to write a document but copy code from  
examples,
old list messages etc. but don't why they have to do it something like  
this.



As soon as you use \dorecurse , you become a programmer .

And sooner or later, everyone become a programmer, because it's
impossible to write a format that satisfied
all your needs .


OK, it's hard to write a fancy layout without defining your own header  
styles etc.
without a definition but use then as many high level contructs  
(\framed, \define, ...)

as possible and try to avoid things like \vbox or \expandafter.

Wolfgang

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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[luigi scarso]

 People who want to use TeX to write a document but copy code from examples,
 old list messages etc. but don't why they have to do it something like this.

 OK, it's hard to write a fancy layout without defining your own header
 styles etc.
 without a definition but use then as many high level contructs (\framed,
 \define, ...)
 as possible and try to avoid things like \vbox or \expandafter.

This is my point of view :
use TeX to write a document = write a program in TeX  programming language

TeX programming language is not like lua, python, c++ , java and so on;
TeX programming language is like m4, ie a macro language.

If you write a simple document (= a simple program) context
high-level const.s  will almost completly hide
the programming aspect ;
but it's impossible that context high-level cover *all* program; so
sooner or later one will
use lua(tex) expression (which can be a natural choice for most of
programmer but can be slow) ,
or ContTeXt macro (which can be less slow but not so natural ) ,
or even TeX macro - primitive .



http://texblog.net/latex-archive/plaintex/expandafter/
hey, this is not a moderate use of expandafter as I intended ..
I dropped latex for similar examples .
In this situation
please, grep setvalue base/*



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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[Wolfgang Schuster]

Am 05.03.2009 um 14:23 schrieb luigi scarso:


http://texblog.net/latex-archive/plaintex/expandafter/


hey, this is not a moderate use of expandafter as I intended ..
I dropped latex for similar examples .
In this situation
please, grep setvalue base/*


??? I can't understand the relation between \setvalue and the  
expandafter
trick in the example on the webpage, setvalue hides the csname ...  
endcsname
part but the example tries to avoid the \let\oldmacro\macro \def 
\macro{\oldmacro...}

redefinition.

Wolfgang

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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[luigi scarso]

On Thu, Mar 5, 2009 at 2:52 PM, Wolfgang Schuster
schuster.wolfg...@googlemail.com wrote:

 Am 05.03.2009 um 14:23 schrieb luigi scarso:

 http://texblog.net/latex-archive/plaintex/expandafter/

 hey, this is not a moderate use of expandafter as I intended ..
 I dropped latex for similar examples .
 In this situation
 please, grep setvalue base/*

 ??? I can't understand the relation between \setvalue and the expandafter
 trick in the example on the webpage, setvalue hides the csname ... endcsname
 part but the example tries to avoid the \let\oldmacro\macro
 \def\macro{\oldmacro...}
 redefinition.
I don't like the
\let\oldmacro\macro  \def\macro{\oldmacro...}
construct
because sometimes the \def\macro{\oldmacro...}
can cause unexpected behaviour

I prefear

\setvalue{quote small}{\quote\small}
{\getvalue{quote small} foo }


-- 
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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[Wolfgang Schuster]

Am 05.03.2009 um 15:23 schrieb luigi scarso:


I prefear

\setvalue{quote small}{\quote\small}
{\getvalue{quote small} foo }


This is non trivial example, normally I would define a new quote  
command with


  \definedelimitedtext[quotesmall][quote]

but you above code can't be achieved with this because the results are  
either
small text or text with quotes at both sides but not a combination of  
them.


How about: \define\quotesmall{\groupedcommand{\quote\small}{}}

Wolfgang

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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[luigi scarso]

On Thu, Mar 5, 2009 at 3:53 PM, Wolfgang Schuster
schuster.wolfg...@googlemail.com wrote:

 Am 05.03.2009 um 15:23 schrieb luigi scarso:

 I prefear

 \setvalue{quote small}{\quote\small}
 {\getvalue{quote small} foo }

 This is non trivial example, normally I would define a new quote command
 with

  \definedelimitedtext[quotesmall][quote]

 but you above code can't be achieved with this because the results are
 either
 small text or text with quotes at both sides but not a combination of them.

 How about: \define\quotesmall{\groupedcommand{\quote\small}{}}
sound good.
Does it work \setvalue{quote:small}{\groupedcommand{\quote\small}{}}
?

-- 
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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[Aditya Mahajan]

On Thu, 5 Mar 2009, luigi scarso wrote:


On Thu, Mar 5, 2009 at 12:09 PM, Wolfgang Schuster
schuster.wolfg...@googlemail.com wrote:


Am 05.03.2009 um 01:17 schrieb luigi scarso:


\starttext
%%% TeX version
\bTABLE
\dorecurse{5}
{\bTR\expandafter \bTD \recurselevel. \eTD\expandafter
       \bTD \recurselevel  \eTD\eTR}
\eTABLE

\dorecurse{2}
{\recurselevel. \recurselevel\crlf}


And you think it's a good idea to use \expandafter in your document?

TeX  version, not context ... :)
btw
\expandafer is not so bad, if used moderatly .



\expanded is the tool for users to get this result without knowledge
about TeX internals and expansion, this is from core-ntb:

% permits \expanded{\bTD ... \eTD}

\unexpanded\def\eTR{}
\unexpanded\def\eTD{}
\unexpanded\def\eTH{}
\unexpanded\def\eTN{}

yes, of course one need to know about \expandafter... so is not so different .
But it's context style.




%%% luatex version
\startluacode
  tprint = function(s) tex.sprint(tex.ctxcatcodes,s) end
  tprint('\\bTABLE')
  for j = 1,5 do
      tprint('\\bTR')
      tprint('\\bTD' .. j .. '.' .. '\\eTD' .. '\\bTD' .. j .. '\\eTD')
      tprint('\\eTR')
  end
  tprint('\\eTABLE')
\stopluacode
\stoptext


Nice solution and real alternative for package writers to avoid \expandafter
and \expanded but nothing for a normal user, I should keep this in my mind.

Are you sure ?
What is a normal user ?
As soon as you use \dorecurse , you become a programmer .

And sooner or later, everyone become a programmer, because it's
impossible to write a format that satisfied
all your needs .


My summary of this thread:
http://randomdeterminism.wordpress.com/2009/03/05/tex-programming-the-past-the-present-and-the-future/

Aditya___
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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[luigi scarso]

 My summary of this thread:
 http://randomdeterminism.wordpress.com/2009/03/05/tex-programming-the-past-the-present-and-the-future/
It's exactly what I think .

Thank you very much.


-- 
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[NTG-context] \dorecurse and \recurselevel in Natural Tables

[Curious Learn]

Can someone please explain why the second example below works but the first does
not work? 
Thanks very much.

\starttext 

\bTABLE
\dorecurse{5}
{\bTR \bTD \recurselevel. \eTD 
  \bTD \recurselevel  \eTD\eTR}
\eTABLE 

\dorecurse{2}
{\recurselevel. \recurselevel\crlf}

\stoptext



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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[luigi scarso]

On Wed, Mar 4, 2009 at 8:35 PM, Curious Learn curiousle...@gmail.com wrote:
 Can someone please explain why the second example below works but the first 
 does
 not work?
 Thanks very much.

 \starttext

 \bTABLE
 \dorecurse{5}
 {\bTR \bTD \recurselevel. \eTD
          \bTD \recurselevel  \eTD\eTR}
 \eTABLE

 \dorecurse{2}
 {\recurselevel. \recurselevel\crlf}

 \stoptext
works ok here with latest minimals
This is LuaTeX, Version snapshot-0.35.0-2009022702 (Web2C 7.5.7)
ConTeXt  ver: 2008.11.10 21:40 MKIV  fmt: 2009.3.4  int: english/english





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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[luigi scarso]

On Wed, Mar 4, 2009 at 8:53 PM, luigi scarso luigi.sca...@gmail.com wrote:
 On Wed, Mar 4, 2009 at 8:35 PM, Curious Learn curiousle...@gmail.com wrote:
 Can someone please explain why the second example below works but the first 
 does
 not work?
 Thanks very much.

 \starttext

 \bTABLE
 \dorecurse{5}
 {\bTR \bTD \recurselevel. \eTD
          \bTD \recurselevel  \eTD\eTR}
 \eTABLE

 \dorecurse{2}
 {\recurselevel. \recurselevel\crlf}

 \stoptext
 works ok here with latest minimals
 This is LuaTeX, Version snapshot-0.35.0-2009022702 (Web2C 7.5.7)
 ConTeXt  ver: 2008.11.10 21:40 MKIV  fmt: 2009.3.4  int: english/english
and also OK with minimals beta

This is LuaTeX, Version snapshot-0.35.0

(test-curios.tex

ConTeXt  ver: 2009.03.04 17:30 MKIV  fmt: 2009.3.4  int: english/english

-- 
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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[Wolfgang Schuster]

Am 04.03.2009 um 20:35 schrieb Curious Learn:

Can someone please explain why the second example below works but  
the first does

not work?
Thanks very much.

\starttext

\bTABLE
\dorecurse{5}
{\bTR \bTD \recurselevel. \eTD
  \bTD \recurselevel  \eTD\eTR}
\eTABLE



\bTABLE
\dorecurse{5}{\bTR\expanded{\bTD\recurselevel\eTD}\eTR}
\eTABLE

Wolfgang

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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[Curious Learn]

Wolfgang Schuster schuster.wolfgang at googlemail.com writes:

 
 \bTABLE
 \dorecurse{5}{\bTR\expanded{\bTD\recurselevel\eTD}\eTR}
 \eTABLE
 
 Wolfgang

As your other solutions, this worked great. I suppose I have to use \expanded
for every \bTD \eTD pair. Can you please explain why this is necessary or point
me to a document that contains the explanation.

Thanks very much.


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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[Wolfgang Schuster]

Am 04.03.2009 um 21:57 schrieb Curious Learn:


Wolfgang Schuster schuster.wolfgang at googlemail.com writes:


\bTABLE
\dorecurse{5}{\bTR\expanded{\bTD\recurselevel\eTD}\eTR}
\eTABLE


As your other solutions, this worked great. I suppose I have to use  
\expanded

for every \bTD \eTD pair.


Not really.

\bTABLE
\dorecurse{5}{\bTR\bTD#1\eTD\eTR}
\eTABLE

Wolfgang

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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[Aditya Mahajan]

On Wed, 4 Mar 2009, Wolfgang Schuster wrote:


\bTABLE
\dorecurse{5}{\bTR\bTD#1\eTD\eTR}
\eTABLE


This is evil genious!

Aditya
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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[Wolfgang Schuster]

Am 04.03.2009 um 22:43 schrieb Aditya Mahajan:


On Wed, 4 Mar 2009, Wolfgang Schuster wrote:


\bTABLE
\dorecurse{5}{\bTR\bTD#1\eTD\eTR}
\eTABLE


This is evil genious!



Can be used nested too.

\starttext
\bTABLE
\dorecurse{5}
  {\bTR
   \dorecurse{5}{\bTD#1:##1\eTD}
   \eTR}
\eTABLE
\stoptext

Wolfgang

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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[Curious Learn]

 Not really.
 
 \bTABLE
 \dorecurse{5}{\bTR\bTD#1\eTD\eTR}
 \eTABLE
 
 Wolfgang
 

Awesome How does one learn these things? Is this Tex programming or Context
programming.

Thanks very much.




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Re: [NTG-context] \dorecurse and \recurselevel in Natural Tables

[Wolfgang Schuster]

Am 04.03.2009 um 23:17 schrieb Curious Learn:


Not really.

\bTABLE
\dorecurse{5}{\bTR\bTD#1\eTD\eTR}
\eTABLE

Wolfgang


Awesome How does one learn these things?


Follow the mailing list and read parts of the source.


Is this Tex programming or Context programming.


It's a ConTeXt future.

You can use inside of \dorecurse #1 to get the expanded level
and #2 to get the recurse depth.

Wolfgang

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