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* [NTG-context] new upload
@ 2025-02-04 16:59 Hans Hagen
  2025-02-04 18:12 ` [NTG-context] " Rik Kabel
  0 siblings, 1 reply; 13+ messages in thread
From: Hans Hagen @ 2025-02-04 16:59 UTC (permalink / raw)
  To: mailing list for ConTeXt users

Hi,

NOTA BENE:

The next upload is kind of special so best save the old tex tree if you 
update.


For quite a while we have an extended expression scanner on board (in 
luametatex) and after recently testing it a bit more I decided to start 
using it. A side effect is that we can also use more clever assignments 
to dimensions and numbers.

We already had:

   \scratchcounter  10

   \scratchcounter = 10

   \scratchcounter \numexpr       1 + 10\relax
   \scratchcounter \numexpression 1 + 10\relax

etc but these expr have a potential lookahead problem, not so much when 
used liek this but when we have cases like

   \numexpr 1 + 10 - #1\relax

because no one can predict what #1 is, maybe

   \numexp 1  - 10/5

which effectively is:

   \numexpr 1 + 10 -  \numexp 1  - 10/5\relax

which can run wild so in the end that is not suitable for use in key 
value situations. As part of our column set experiments we actually want 
to pass 'expressions', think

   \framed[height=2\lineheight-\strutdp]{...}

or even

   \framed[height=2 * \lineheight - \strutdp]{...}

or even

   \framed[height=2 * lh - sd]{...}

etc. where the 2 * dimension is something not possibel with \dimexpr.

So, to keep a long explanation short, we now also support

   \dimexpr{....}

and also

   \scratchdimen{...}

where in the later case we actually use

   \dimexpression{....}

There's also \dimexperimental which has proper priority handler and can 
mix with integers and floats as well as limited boolean expressions 
(comparison) while its \numexperimental sibbling can also do bitwise 
operations. (Actually \dimexpression also can do some of that but one 
needs to use more ( ) around subexpressions; so \dimexpression 
conceptually sits between \dimexpr and \dimexperimental).

Anyway, more about that in manuals and articles, and it's kind of old 
news already.

The main impact is that now keys that refer to numbers and dimensions 
can also accept expressions without the need to be explicit, so

   width=3em + 2em * 4

   lines=4 + (5*2 - 1)

eventually will all be seen as {something} which as it is valid in 
assignments will trigger the right expression scanner.

The \todimension and \tointeger primitives also accept {} because they 
scan for a dimension or number as again as side effect do all primitives 
and engine keyword that matter. They are serializers.

Deep down context is now adapted to this: adding many {} in assignments, 
wrapping parameters in {} so that they can properly nest, replacing 
/removing redundant \dimexpr etc. All this can have introduced temporary 
issues but they can be fixed easily, so I think that the benefits 
outweight temporary issues. Think 'beta'. 	

In case one wonders, there is no real impact on performance because 
expressions were already quite optimized and the (already kind of old) 
new scanners even more so.

In due time more of the now possible features will be revealed.

Hans (and mikael who tested intermediate versions on real documents)


-----------------------------------------------------------------
                                           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 / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl
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* [NTG-context] Re: new upload
  2025-02-04 16:59 [NTG-context] new upload Hans Hagen
@ 2025-02-04 18:12 ` Rik Kabel
  2025-02-04 20:12   ` Wolfgang Schuster
  0 siblings, 1 reply; 13+ messages in thread
From: Rik Kabel @ 2025-02-04 18:12 UTC (permalink / raw)
  To: ntg-context


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On 2025-02-04 11:59, Hans Hagen wrote:
> Hi,
>
> NOTA BENE:
>
> The next upload is kind of special so best save the old tex tree if 
> you update.
>
Indeed. The following

    \normalizefontwidth \FontA {ABCDEF} {\textwidth} {SerifItalic}
    \starttext
       \FontA ABCDEF
    \stoptext

fails with:

    Tex error       > tex error on line 1 in file
    G:/Projects/Testing/bad.tex: Extra \else

    \endgroup \always \edef \normalizedfontsize {37.77924pt=\zeropoint
    \bodyfontsize

    <macro> \typo_normalizers_size
         #1#2->\dimexpr {#1\b_typo_normalizers }=\zeropoint
    \bodyfontsize \else
         \luaexpr {\number \dimexpr 10pt\relax *\number \dimexpr
    #2\relax /\number #1\b_typo_normalizers }\scaledpoint \fi \relax
    <macro> \typo_normalizers_font_at_size
         #1#2#3#4#5->\begingroup \setbox \b_typo_normalizers \hbox
    {\definedfont [#5 at 10pt]\settrialtypesetting #3}\normalexpanded
    {\endgroup \always \edef \noexpand \normalizedfontsize {\the
    \typo_normalizers_size {#1}{#4}
         }}\definefont [\strippedcsname #2]
    <line 3.1>
         \normalizefontwidth \FontA {ABCDEF} {\textwidth} {SerifItalic}

    1 >>  \normalizefontwidth \FontA {ABCDEF} {\textwidth} {SerifItalic}
    2     \starttext
    3       \FontA ABCDEF
    4     \stoptext
    5
    I'm ignoring this; it doesn't match any \if.

-- 
Rik




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* [NTG-context] Re: new upload
  2025-02-04 18:12 ` [NTG-context] " Rik Kabel
@ 2025-02-04 20:12   ` Wolfgang Schuster
  0 siblings, 0 replies; 13+ messages in thread
From: Wolfgang Schuster @ 2025-02-04 20:12 UTC (permalink / raw)
  To: ntg-context

Am 04.02.2025 um 19:12 schrieb Rik Kabel:
> 
> On 2025-02-04 11:59, Hans Hagen wrote:
>> Hi,
>>
>> NOTA BENE:
>>
>> The next upload is kind of special so best save the old tex tree if 
>> you update.
>>
> Indeed. The following
> 
>     \normalizefontwidth \FontA {ABCDEF} {\textwidth} {SerifItalic}
>     \starttext
>        \FontA ABCDEF
>     \stoptext


typo-txt.mklx:

\def\typo_normalizers_size#axis#size%
% {\dimexpr\ifdim#1\b_typo_normalizers=\zeropoint
   {\dimexpr\ifzeropt#1\b_typo_normalizers
      \bodyfontsize
    \else
  
\luaexpr{\number\dimexpr10pt\relax*\number\dimexpr#size\relax/\number#axis\b_typo_normalizers}\scaledpoint
    \fi\relax}

Wolfgang

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* [NTG-context] Re: new upload
  2024-06-18 20:15 [NTG-context] " Hans Hagen
@ 2024-06-19 16:55 ` Pablo Rodriguez via ntg-context
  0 siblings, 0 replies; 13+ messages in thread
From: Pablo Rodriguez via ntg-context @ 2024-06-19 16:55 UTC (permalink / raw)
  To: ntg-context; +Cc: Pablo Rodriguez

On 6/18/24 22:15, Hans Hagen wrote:
> [...]
> - for pablo to test signing

Many thanks for this, Hans.

It might take a while, since I would like to test this for some time.

Pablo

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* [NTG-context] Re: new upload
  2023-09-04 17:22 [NTG-context] " Hans Hagen
@ 2023-09-04 17:37 ` Pablo Rodriguez
  0 siblings, 0 replies; 13+ messages in thread
From: Pablo Rodriguez @ 2023-09-04 17:37 UTC (permalink / raw)
  To: ntg-context

On 9/4/23 19:22, Hans Hagen wrote:
> Hi,
>
> new upload with packed itemize fix .. hopefyully no side effects of some
> work in progress (but no crashes in test suite so likely ok)

Hi Hans,

many thanks for the ultrafast fix and upload.

Pablo

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maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context
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* [NTG-context] Re: new upload
  2023-08-16 17:46       ` Hans Hagen via ntg-context
@ 2023-08-17 13:39         ` Pablo Rodriguez
  0 siblings, 0 replies; 13+ messages in thread
From: Pablo Rodriguez @ 2023-08-17 13:39 UTC (permalink / raw)
  To: Hans Hagen via ntg-context

On 8/16/23 19:46, Hans Hagen via ntg-context wrote:
> Hi Pablo,
>
> I Uploaded an update so you can spend the evening wikifying units ...

Hi Hans,

many thanks for the update. As for yesterday, I’m afraid I was required
elsewhere...

> see lowlevel manual for the full list

Many thanks for adding that to the lowlevel manual.

Just in case this might help anyone, I always see what is new in latest
release by comparing the backup from previous latest with current latest
(in my case "meld context .backup-context/date_context/").

I think the best way is to copy from section 6 of the manual.

> \startTEXpage[offset=1ex]
>      x\vrule height 1fa depth 1fd\relax x % \ascender \descender
>      x\vrule height 1sh depth 1sd\relax x % \strutht \strutdp
>      x\vrule height 1fc depth 0pt\relax x % \capheight
> \stopTEXpage
>
> you can also run s-system-units.mkxl and get a unit map

I always forget how to run modules, so compiling this also works:

  \usemodule[system-units]

  \startTEXpage[offset=1ts]
    \showunitsmap
  \stopTEXpage

Now I’m editing the dimensions entry in the wiki.

Many thanks for your work again,

Pablo
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^ permalink raw reply	[flat|nested] 13+ messages in thread

* [NTG-context] Re: new upload
  2023-08-15 20:54     ` Pablo Rodriguez
  2023-08-16  8:07       ` Hans Hagen via ntg-context
@ 2023-08-16 17:46       ` Hans Hagen via ntg-context
  2023-08-17 13:39         ` Pablo Rodriguez
  1 sibling, 1 reply; 13+ messages in thread
From: Hans Hagen via ntg-context @ 2023-08-16 17:46 UTC (permalink / raw)
  To: Pablo Rodriguez, mailing list for ConTeXt users; +Cc: Hans Hagen

Hi Pablo,

I Uploaded an update so you can spend the evening wikifying units ... 
see lowlevel manual for the full list

\startTEXpage[offset=1ex]
     x\vrule height 1fa depth 1fd\relax x % \ascender \descender
     x\vrule height 1sh depth 1sd\relax x % \strutht \strutdp
     x\vrule height 1fc depth 0pt\relax x % \capheight
\stopTEXpage

you can also run s-system-units.mkxl and get a unit map

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
-----------------------------------------------------------------

___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : https://www.pragma-ade.nl / http://context.aanhet.net
archive  : https://bitbucket.org/phg/context-mirror/commits/
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___________________________________________________________________________________

^ permalink raw reply	[flat|nested] 13+ messages in thread

* [NTG-context] Re: new upload
  2023-08-15 20:54     ` Pablo Rodriguez
@ 2023-08-16  8:07       ` Hans Hagen via ntg-context
  2023-08-16 17:46       ` Hans Hagen via ntg-context
  1 sibling, 0 replies; 13+ messages in thread
From: Hans Hagen via ntg-context @ 2023-08-16  8:07 UTC (permalink / raw)
  To: mailing list for ConTeXt users; +Cc: Hans Hagen

On 8/15/2023 10:54 PM, Pablo Rodriguez wrote:
> On 8/15/23 22:16, Hans Hagen via ntg-context wrote:
>> On 8/15/2023 9:27 PM, Pablo Rodriguez wrote:
>>> [...]
>>> I wonder whether we could have (current) frame width and height as unit.
>> we can have
>>
>>     fw fh fo lw (width height offset linewidth)
>>
>> but keep in mind that only properties that are set up have a meaningful
>> value (so with autoheight it is zero)
> 
> So 1fw is equal to 2fo + 1lw, isn’t it? (I mean, frame width is left and
> right offset [given that all frames have the same length] plus line width.)

fw is more like width-2offset-2linewidth

> Sorry, this is to be sure I’m getting this right.
we can also have (available)

lh   lineheight
sh   strutheight
sd   strutdepth

and maybe (pick up from font or have extra font dimens)

fa   font ascender
fd   font descender
fc   font capheight

and the css (easy)

ch   width of zero

and then a kind of periodic table of units

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
-----------------------------------------------------------------

___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : https://www.pragma-ade.nl / http://context.aanhet.net
archive  : https://bitbucket.org/phg/context-mirror/commits/
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___________________________________________________________________________________

^ permalink raw reply	[flat|nested] 13+ messages in thread

* [NTG-context] Re: new upload
  2023-08-15 20:16   ` Hans Hagen via ntg-context
@ 2023-08-15 20:54     ` Pablo Rodriguez
  2023-08-16  8:07       ` Hans Hagen via ntg-context
  2023-08-16 17:46       ` Hans Hagen via ntg-context
  0 siblings, 2 replies; 13+ messages in thread
From: Pablo Rodriguez @ 2023-08-15 20:54 UTC (permalink / raw)
  To: Hans Hagen via ntg-context

On 8/15/23 22:16, Hans Hagen via ntg-context wrote:
> On 8/15/2023 9:27 PM, Pablo Rodriguez wrote:
>> [...]
>> I wonder whether we could have (current) frame width and height as unit.
> we can have
>
>    fw fh fo lw (width height offset linewidth)
>
> but keep in mind that only properties that are set up have a meaningful
> value (so with autoheight it is zero)

So 1fw is equal to 2fo + 1lw, isn’t it? (I mean, frame width is left and
right offset [given that all frames have the same length] plus line width.)

Sorry, this is to be sure I’m getting this right.

> and then you realize that you are the one going to wikify it

Fine (https://wiki.contextgarden.net/Dimensions could be expanded that
way), but I need to check the new units first.

Many thanks for your help,

Pablo
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context
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^ permalink raw reply	[flat|nested] 13+ messages in thread

* [NTG-context] Re: new upload
  2023-08-15 19:27 ` [NTG-context] " Pablo Rodriguez
@ 2023-08-15 20:16   ` Hans Hagen via ntg-context
  2023-08-15 20:54     ` Pablo Rodriguez
  0 siblings, 1 reply; 13+ messages in thread
From: Hans Hagen via ntg-context @ 2023-08-15 20:16 UTC (permalink / raw)
  To: ntg-context; +Cc: Hans Hagen

On 8/15/2023 9:27 PM, Pablo Rodriguez wrote:
> On 8/15/23 19:08, Hans Hagen wrote:
>> [...]
>> The units starting with 'u' are considered user units but be carefulk
>> with other combinations as we have (and will have more) built into
>> context ones, like
>>
>> pi : pi for Mikael
>> ft : foot for Alan
>> fs : (global body) font size
>> tw : (layout) text width
>> th : (layout) text height
>> hs : (current) hsize
>> vs : (current) vsize
>> cd : (when set) column distance
>> cw : (when set) column width
>> cx : combination cell width
>> uu : user unit (\METAFUN)
> 
> Many thanks for the new release, Hans.
> 
> I wonder whether we could have (current) frame width and height as unit.
we can have

   fw fh fo lw (width height offset linewidth)

but keep in mind that only properties that are set up have a meaningful 
value (so with autoheight it is zero)

and then you realize that you are the one going to wikify it

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
-----------------------------------------------------------------

___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : https://www.pragma-ade.nl / http://context.aanhet.net
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___________________________________________________________________________________

^ permalink raw reply	[flat|nested] 13+ messages in thread

* [NTG-context] Re: new upload
  2023-08-15 17:08 [NTG-context] " Hans Hagen
@ 2023-08-15 19:27 ` Pablo Rodriguez
  2023-08-15 20:16   ` Hans Hagen via ntg-context
  0 siblings, 1 reply; 13+ messages in thread
From: Pablo Rodriguez @ 2023-08-15 19:27 UTC (permalink / raw)
  To: ntg-context

On 8/15/23 19:08, Hans Hagen wrote:
> [...]
> The units starting with 'u' are considered user units but be carefulk
> with other combinations as we have (and will have more) built into
> context ones, like
>
> pi : pi for Mikael
> ft : foot for Alan
> fs : (global body) font size
> tw : (layout) text width
> th : (layout) text height
> hs : (current) hsize
> vs : (current) vsize
> cd : (when set) column distance
> cw : (when set) column width
> cx : combination cell width
> uu : user unit (\METAFUN)

Many thanks for the new release, Hans.

I wonder whether we could have (current) frame width and height as unit.

Many thanks for your help,

Pablo
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context
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^ permalink raw reply	[flat|nested] 13+ messages in thread

* [NTG-context] Re: new upload
  2023-07-18 21:53 ` [NTG-context] " Rik Kabel
@ 2023-07-19  6:37   ` Hans Hagen via ntg-context
  0 siblings, 0 replies; 13+ messages in thread
From: Hans Hagen via ntg-context @ 2023-07-19  6:37 UTC (permalink / raw)
  To: ntg-context; +Cc: Hans Hagen

On 7/18/2023 11:53 PM, Rik Kabel wrote:

> Nice. Some of my make files use concurrence (MAKEFLAGS += --jobs=5). 
> That seems to bring similar benefits. Is this different beyond the syntax?
they are different processes indeed, but the implementation is somewhat 
curious as it needs to be portable across operating systems and i don't 
want to add dependencies to the engine, so we go for a little less 
performance but not that much in practice

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
-----------------------------------------------------------------

___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

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

^ permalink raw reply	[flat|nested] 13+ messages in thread

* [NTG-context] Re: new upload
  2023-07-18 20:12 [NTG-context] " Hans Hagen
@ 2023-07-18 21:53 ` Rik Kabel
  2023-07-19  6:37   ` Hans Hagen via ntg-context
  0 siblings, 1 reply; 13+ messages in thread
From: Rik Kabel @ 2023-07-18 21:53 UTC (permalink / raw)
  To: ntg-context


On 7/18/2023 4:12 PM, Hans Hagen wrote:
> Hi,
>
> In todays upload there is a follow up on a new feature that is already 
> present in the previous upload (but that was not yet advertised):
>
>   context --parallel test1.tex test2.tex test3.tex
>
>   context --parallel --pattern=test*.tex
>
>   context --parallellist myfile.cmd  (filters context processing lines)
>
>   context --parallel test1.tex test2.tex test3.tex --terminal
>
> The --parellel feature will run in parallel, By default upto 8 jobs 
> but you can specify less or more depending on your hardware but on my 
> machine this is reasonable.
>
> See workflows-parrallel at the end for more info. That one also 
> mentions the new --forceinput flag which makes that when these
>
>   context foo-1.tex --mode=m-1 --forceinput=whatever.tex
>   context foo-3.tex --mode=m-3 --forceinput=whatever.tex
>
> are run in parallel there is no clash in tuc/pdf. Of course not all 
> scenarios might work out well. Commandline arguments given are passed 
> on to the different jobs but it's good enough for the purpose I have 
> in mind.
>
> fwiw: a single pass teststuite run (some 1950 files) goes down from 
> 1350 to 700 seconds but another run with 1200 complex xml documents 
> goes 4 times faster. In the end this is way cheaper than updating a 5 
> year old dev machine (a new one would run about twice as fast which 
> would bring about the same gain).
>
> Hans
>
> ps. Because tex is a memory intense application it doesn't scale with 
> the number of cores unless one has the latest greatest fast memory as 
> well as generous cpu caches. There's only so much one can do in the 
> code base about it.
>
>
Nice. Some of my make files use concurrence (MAKEFLAGS += --jobs=5). 
That seems to bring similar benefits. Is this different beyond the syntax?

-- 
Rik

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^ permalink raw reply	[flat|nested] 13+ messages in thread

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Thread overview: 13+ messages (download: mbox.gz / follow: Atom feed)
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2025-02-04 16:59 [NTG-context] new upload Hans Hagen
2025-02-04 18:12 ` [NTG-context] " Rik Kabel
2025-02-04 20:12   ` Wolfgang Schuster
  -- strict thread matches above, loose matches on Subject: below --
2024-06-18 20:15 [NTG-context] " Hans Hagen
2024-06-19 16:55 ` [NTG-context] " Pablo Rodriguez via ntg-context
2023-09-04 17:22 [NTG-context] " Hans Hagen
2023-09-04 17:37 ` [NTG-context] " Pablo Rodriguez
2023-08-15 17:08 [NTG-context] " Hans Hagen
2023-08-15 19:27 ` [NTG-context] " Pablo Rodriguez
2023-08-15 20:16   ` Hans Hagen via ntg-context
2023-08-15 20:54     ` Pablo Rodriguez
2023-08-16  8:07       ` Hans Hagen via ntg-context
2023-08-16 17:46       ` Hans Hagen via ntg-context
2023-08-17 13:39         ` Pablo Rodriguez
2023-07-18 20:12 [NTG-context] " Hans Hagen
2023-07-18 21:53 ` [NTG-context] " Rik Kabel
2023-07-19  6:37   ` Hans Hagen via ntg-context

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