from:"Wolfgang Schuster"


Denis Maier schrieb am 26.04.2024 um 19:52:


I see. But there's no command that could be used to simulate an empty line?
If not, me should I perhaps try to replicate the wrapper structure from 
the XML source in context? (I'll also look into the format module of 
course.) What do you think?


Below is a different solution to your problem with works without 
\startlines because you already mark up each individual line in the poem 
which make it possible to add a linebreak in the output.


With \blank options (samepage) you can avoid pagebreaks between stanzas.

\startxmlsetups xml:test
\xmlsetsetup{#1}{*}{-}
\xmlsetsetup{#1}{doc|poem|stanza|line}{xml:*}
\stopxmlsetups

\xmlregistersetup{xml:test}

\startxmlsetups xml:doc
\xmlflush{#1}
\stopxmlsetups

\startxmlsetups xml:poem
\blank[line]
\xmlflush{#1}
\blank[back,line]
\stopxmlsetups

\startxmlsetups xml:stanza
   \xmlflush{#1}\blank[preference,line]
\stopxmlsetups

\startxmlsetups xml:line
\xmlflush{#1}\blank[samepage,none]
\stopxmlsetups

\startbuffer[test]




The
lines
are
there!


The
lines
are
there!


The
lines
are
there!



\stopbuffer

\starttext

\samplefile{lorem}

\xmlprocessbuffer{test}{test}{}

\samplefile{lorem}

\stoptext

Wolfgang
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[NTG-context] Re: wrong spacing after command with optional arguments


Pablo Rodriguez via ntg-context schrieb am 26.04.2024 um 19:04:

On 4/26/24 18:18, Wolfgang Schuster wrote:

Pablo Rodriguez via ntg-context schrieb am 26.04.2024 um 17:29:

What is wrong in my definition above?


There is nothing wrong, this is just a side effect of the scanner used
with the \do...groupempty commands. To have more control about this
behavior use the \tolerant modifier for \def to change it.


Many thanks for your reply, Wolfgang.

I tried this approach (I hope it isn’t wrong):

   \starttext
   \expanded\tolerant\def\MyCommand#_#,#_#,#_#,#_{%
 \doiftextelse{#4}%
   {#4}
   {\doiftextelse{#3}
 {#3}
 {#2}}}


The \expanded modifier is wrong (I guess you meant \unexpanded) but 
which check for the number of arguments you use doesn't matter in a 
document.


The LMTX version of the \iffourthargument etc. checks is the 
\ifarguments commands where you use \or to set a case for the number of 
argument passed.


\protected\tolerant\def\MyCommand#_#,#_#,#_#,#_%
  {\ifarguments
 % no arguments are passed
   \or
 #1% one argument is passed
   \or
 #2% two arguments are passed
   \or
 #3% three arguments are passed
   \or
 #4% four arguments are passed
   \fi}



   \MyCommand{}{second}{third}{fourth},\\
   \MyCommand{}{second}{third}{fourth} e,\\

   \MyCommand{}{second}{third},\\
   \MyCommand{}{second}{third} e,\\

   \MyCommand{}{second},\\
   \MyCommand{}{second} e,\\
   \stoptext

BTW, this is the first time I see #_ instead of #1.

There is no way to search for "#_" in the wiki.

Grepping the source, "#_" seems to be used for optional arguments
(mainly in syst-aux.mkxl).

But what are these "#_" (which don’t seem to come from TeX)?


Hans added many additions to command parameters in Luametatex and #_ 
means the argument to a commands has to be enclosed in braces while #1

allows you to pass text without it.

In the following example \CommandA take in the first case "a" as 
argument while CommandB ignores it and would only accept "{a}" with 
braces around it.


 begin example
 \def\CommandA#1{(#1)}
\tolerant\def\CommandB#_{(#1)}

\starttext

\CommandA abc\par
\CommandB abc\blank

\CommandA {ab}c\par
\CommandB {ab}c\blank

\stoptext
 end example

You can find a list with all new command parameters in lowlevel-macros.pdf.

Wolfgang
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[NTG-context] Re: \par and \startlines

Denis Maier schrieb am 26.04.2024 um 19:18:
Wolfgang Schuster hat am
26.04.2024 18:24 CEST geschrieben:

Denis Maier via ntg-context schrieb am 26.04.2024 um 18:10:
Pablo Rodriguez via ntg-context <mailto:ntg-context@ntg.nl>> hat am 26.04.2024 17:25 CEST geschrieben:
On 4/26/24 15:33, denis.ma...@unibe.ch
<mailto:denis.ma...@unibe.ch> wrote:
Hi,
I’m trying to typeset a poem from XML, but I can’t figure out how to
make the inbetween key working here.
As the source is XML, I cannot just add an empty line to start a new
group of lines inside \startlines…\stoplines. I guess, there must
be a
command to do that, but \par seems to have no effect here.
How can this be done?

Hi Denis,
I must confess I don’t get which is your actual question.
\blank works here and you know that (since you included it in your
code).

MkIV with \par works in your sample and LMTX with \par doesn’t.
I wonder whether this might be a bug in LMTX.
Just in case it might help,
Thanks for your answer and sorry for not being clearer. I was just
wondering why the \par seems to have no effect. (I first guessed
that it might be related to XML, to but then realized it happens
with context markup as well. Usually, you won't run into this
because an empty line works, but with XML that's not am option.) As
you've said, it looks like a bug then.

The lines environment treats each line of the input as paragraph by
adding \par at the end of it and adding another \par makes no
difference here.

BTW: ConTeXt has a module for poems which can be loaded with
\usemodule[format].

Wolfgang

Ok. I'll have a look at this module. Just two questions:
1. so did this behavior change?
2. What is inbetween referring to then? If each line is a paragraph,
what's this group of paragraphs then? Can you manually switch to the
next one?

The inbetween setting works because ConTeXt checks at the start of each
line whether it's empty (in this case the value is used) or not.

When you add a \par you just end the current line/paragraph and it
doesn't matter how many \par's you use because TeX just ignores them.

Wolfgang

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[NTG-context] Re: \par and \startlines


Denis Maier via ntg-context schrieb am 26.04.2024 um 18:10:
Pablo Rodriguez via ntg-context > hat am 26.04.2024 17:25 CEST geschrieben:
On 4/26/24 15:33, denis.ma...@unibe.ch  
wrote:
Hi, 
I’m trying to typeset a poem from XML, but I can’t figure out how to
make the inbetween key working here. 
As the source is XML, I cannot just add an empty line to start a new

group of lines inside \startlines…\stoplines. I guess, there must be a
command to do that, but \par seems to have no effect here. 
How can this be done? 

Hi Denis,
I must confess I don’t get which is your actual question.
\blank works here and you know that (since you included it in your 
code).

MkIV with \par works in your sample and LMTX with \par doesn’t.
I wonder whether this might be a bug in LMTX.
Just in case it might help, 
Thanks for your answer and sorry for not being clearer. I was just 
wondering why the \par seems to have no effect. (I first guessed that 
it might be related to XML, to but then realized it happens with 
context markup as well. Usually, you won't run into this because an 
empty line works, but with XML that's not am option.) As you've said, 
it looks like a bug then.




The lines environment treats each line of the input as paragraph by 
adding \par at the end of it and adding another \par makes no difference 
here.


BTW: ConTeXt has a module for poems which can be loaded with 
\usemodule[format].


Wolfgang

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[NTG-context] Re: wrong spacing after command with optional arguments


Pablo Rodriguez via ntg-context schrieb am 26.04.2024 um 17:29:

Dear list,

I have the following sample:

   \starttext
   \def\MyCommand{\doquadruplegroupempty\doMyCommand}

   \def\doMyCommand#1#2#3#4{%
 \iffourthargument
   #4%
 \orelse\ifthirdargument
   #3%
 \else
   #2%
 \fi}

   \MyCommand{}{second}{third}{fourth},\\
   \MyCommand{}{second}{third}{fourth} e,\\

   \MyCommand{}{second}{third},\\
   \MyCommand{}{second}{third} e,\\

   \MyCommand{}{second},\\
   \MyCommand{}{second} e,\\
   \stoptext

I don‘t know why only the command gets the space after right only when
the four arguments are provided.

What is wrong in my definition above?


There is nothing wrong, this is just a side effect of the scanner used 
with the \do...groupempty commands. To have more control about this 
behavior use the \tolerant modifier for \def to change it.


 begin example
\tolerant\def\CommandA#_#*#_#*#_#*#_{(#1)(#2)(#3)(#4)}
\tolerant\def\CommandB#_#,#_#,#_#,#_{(#1)(#2)(#3)(#4)}

\starttext

A: \CommandA{a}  xxx\par
B: \CommandB{a}  xxx\blank

A: \CommandA{a}{b}   xxx\par
B: \CommandB{a}{b}   xxx\blank

A: \CommandA{a}{b}{c}xxx\par
B: \CommandB{a}{b}{c}xxx\blank

A: \CommandA{a}{b}{c}{d} xxx\par
B: \CommandB{a}{b}{c}{d} xxx\blank

\stoptext
 end example

Another way to avoid this is to create a command with a key-value list.

 begin example
\tolerant\def\Command[#1]%
  {\begingroup
   \getdummyparameters[#1]%
   \doifsomething{\dummyparameter{a}}{(\dummyparameter{a})}%
   \doifsomething{\dummyparameter{b}}{(\dummyparameter{b})}%
   \doifsomething{\dummyparameter{c}}{(\dummyparameter{c})}%
   \doifsomething{\dummyparameter{d}}{(\dummyparameter{d})}%
   \endgroup}

\starttext

\Command[a=1,b=2,c=3,d=4] xxx\par
\Command[a=1,c=3] xxx\par

\stoptext
 end example
Wolfgang
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[NTG-context] Re: what are the interaction between \showframe and \realpageno in \startuseMPgraphic ?

2024-04-24 Thread Wolfgang Schuster


garu...@azules.eu schrieb am 20.04.2024 um 23:00:

I can not figure out why this progress bar only works when \showframe is 
activated.
When you comment on \showframe, it's as if \realpageno is at zero.
(current version: 2024.04.01 08:59)

\showframe

\startuseMPgraphic{MonGraphisme_MP}
   numeric n ; n := \number\realpageno ;
   numeric m ; m := \number\lastpageno ;
   numeric h ; h := \overlayheight ;
   numeric w ; w := \overlaywidth ;
   numeric e ; e := 3mm;
   numeric r ; r := (((n-1)/(m-1))*w);
   fill fullsquare xscaled w yscaled e shifted (w/2, h/2) withcolor darkblue ;
   fill fullsquare xscaled r yscaled e shifted (r/2, h/2) withcolor darkred;
\stopuseMPgraphic

\defineoverlay [MonGraphisme_OL] [\useMPgraphic{MonGraphisme_MP}]

\setupbackgrounds [footer] [rightmargin] [background={MonGraphisme_OL}]

\starttext
\dorecurse{10}{\input tufte\page}
\stoptext

Any clue is warmly welcome


You need

    \setupbackgrounds[state=repeat]

which is set when you use \showframe.

Wolfgang

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[NTG-context] Re: documentation: parameters of \setuplist

2024-04-23 Thread Wolfgang Schuster


Henning Hraban Ramm schrieb am 23.04.2024 um 21:43:

Am 22.04.24 um 18:09 schrieb Henning Hraban Ramm:
I tried to complete https://wiki.contextgarden.net/Command/setuplist, 
but I don’t understand all parameters.


Can anyone explain these please:

* state (start stop): what does this en-/disable? collecting entries?
* label (yes no none Name): language dependent labels? as a prefix or 
what?


You can use the key to set language dependent texts for the section 
counters in the list entry, with "yes" the values from the document are 
used but you can also set whatever label you want.


\setuplabeltext
  [en]
  [chapter=Chapter ,
   appendix=Appendix ,
   hraban=Hraban ]

%\setuplist[chapter][label=hraban,width=3cm]
\setuplist[chapter][label=yes,width=3cm]

\starttext

\startfrontmatter
\completecontent
\stopfrontmatter

\startbodymatter
\chapter{First chapter}
\chapter{Second chapter}
\stopbodymatter

\startappendices
\chapter{First appendix}
\stopappendices

\stoptext

Wolfgang
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[NTG-context] Re: kpfonts

2024-04-20 Thread Wolfgang Schuster


Mikael Sundqvist schrieb am 20.04.2024 um 14:04:

Hi,

On Sat, Apr 20, 2024 at 2:03 PM Xavier B.  wrote:

Hi,

Just a courious: is there kpfonts available for context?
I love kpfonts.

Thanks in advance,
Xavier

Yes, just download the fonts and do

\setupbodyfont[kpfonts]


The fonts are included in the LMTX installation.

Wolfgang

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[NTG-context] Re: kpfonts

2024-04-20 Thread Wolfgang Schuster


Xavier B. schrieb am 20.04.2024 um 13:51:

Hi,

Just a courious: is there kpfonts available for context?
I love kpfonts.


\setupbodyfont[kpfonts]

\starttext
\samplefile{lorem}
\stoptext

Wolfgang
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[NTG-context] Re: minwidth not working ?

2024-04-20 Thread Wolfgang Schuster


Denis Maier schrieb am 19.04.2024 um 22:55:

Wolfgang Schuster  hat am 
19.04.2024 20:32 CEST geschrieben:

denis.ma...@unibe.ch schrieb am 10.04.2024 um 12:47:


Hi,

Shouldn’t minwidth set a default minimal width for external figures? 
But this here does not work


[...]

Am I missing something here?


There are no minwidth/minheight values for \externalfigure.

Wolfgang

So the wiki is wrong here? 
https://wiki.contextgarden.net/Command/setupexternalfigure


Yes the comment at the end of page is wrong and the text about the strut 
setting can also be removed, only the orientation value is missing in 
the command table.


Wolfgang
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[NTG-context] Re: minwidth not working ?

2024-04-19 Thread Wolfgang Schuster


denis.ma...@unibe.ch schrieb am 10.04.2024 um 12:47:


Hi,

Shouldn’t minwidth set a default minimal width for external figures? 
But this here does not work


==

\setupexternalfigures

  [

  maxwidth=\textwidth,

  minwidth=\textwidth,

  location={local,global,default},

  ]

\starttext

\externalfigure[cow.pdf]

\externalfigure[cow.pdf][width=\textwidth]

\stoptext

==

Am I missing something here?



There are no minwidth/minheight values for \externalfigure.

Wolfgang

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[NTG-context] Re: Weird (?) float placement for specific widths of image

2024-04-19 Thread Wolfgang Schuster


Denis Maier via ntg-context schrieb am 19.04.2024 um 17:48:


Hi again,

just a quick follow up on this one. Can anyone reproduce this?

Would be good to know how this can be fixed. I have this in a real 
document, and as I’m typesetting a XML source I cannot just adjust 
slightly adjust the dimensions to get rid of that.




\setupfloats[compress=no]

Wolfgang

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[NTG-context] Re: [ using horizontal table lines ]

2024-04-15 Thread Wolfgang Schuster


vm via ntg-context schrieb am 15.04.2024 um 13:15:

I'm probably using the \starttable incorrectly:

with this code I only get only *one* horizontal line in the header

[...]

with this code I get two horizontal lines, but the second is too short.

[...]

with this code I get two horizontal lines, with correct length, but 
above the wrong columns


[...]


diff:
\NC\DC\DC\DC\DL[4]\DL[4]\AR
\NC\DC\DC\DC\DL[4]\DL[3]\AR
\NC\DC\DC\DL[4]\DL[4]\AR

There is (probably) a correct way to solve this.


My suggestion is to switch to either natural table or extreme tables but 
it seems to me there is a problem with the division lines which always 
leave an empty column afterwards.


The following example should add horizontal lines above the first and 
third column but this setting results in an error. When I omit the last 
\DC the error disappears but as can be seen in the output the second 
line appears above the fourth column.


\starttext

\starttable[||]
%\DL  \DC  \DL  \DC  \DC \DR
\DL[red] \DC  \DL[red] \DC  \DR
\VL   01 \VL   02 \VL   03 \VL   04 \VL   05 \VL\SR
\stoptable

\stoptext

Wolfgang
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[NTG-context] Re: Wiki - question about Command/ pages which start with a space character

2024-04-14 Thread Wolfgang Schuster


Henning Hraban Ramm schrieb am 14.04.2024 um 14:53:

Am 14.04.24 um 14:46 schrieb Wolfgang Schuster:

garu...@azules.eu schrieb am 14.04.2024 um 12:41:

Hi all,

Is it on purpose that 128 pages 
"https://wiki.contextgarden.net/Command/ " start with a 
space character ?

I didn't find an explanation in https://wiki.contextgarden.net/Command

For example, these two pages exist :
- https://wiki.contextgarden.net/Command/startbuffer
- https://wiki.contextgarden.net/Command/_startbuffer

If it is on purpose:
- What is the purpose, and which page should contain which 
documentation?


The command pages which start with an underscore are probably leftovers
when Taco changed a page from manual command descriptions to auto
generated tables.

In the process to change the page he makes a copy of the current page
with an underscore at the beginning which is deleted after the change
but it's possible he forgot to delete a few of them.

When you notice no difference between both versions of a command page
you can delete all of the forgotten pages.


No!

These are the general pages in opposite to instance pages, e.g. 
"startsection" and "startchapter" are instances of "_startsection"?


https://wiki.contextgarden.net/Command/_placefloat is the general page 
for the instances placefigure, placetable etc.


My bad, thank you for the correction!

Wolfgang

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[NTG-context] Re: Wiki - question about Command/ pages which start with a space character

2024-04-14 Thread Wolfgang Schuster


garu...@azules.eu schrieb am 14.04.2024 um 12:41:

Hi all,

Is it on purpose that 128 pages "https://wiki.contextgarden.net/Command/ 
" start with a space character ?
I didn't find an explanation in https://wiki.contextgarden.net/Command

For example, these two pages exist :
- https://wiki.contextgarden.net/Command/startbuffer
- https://wiki.contextgarden.net/Command/_startbuffer

If it is on purpose:
- What is the purpose, and which page should contain which documentation?


The command pages which start with an underscore are probably leftovers
when Taco changed a page from manual command descriptions to auto
generated tables.

In the process to change the page he makes a copy of the current page
with an underscore at the beginning which is deleted after the change
but it's possible he forgot to delete a few of them.

When you notice no difference between both versions of a command page
you can delete all of the forgotten pages.

Wolfgang

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[NTG-context] Re: how to apply metapost effects to section title?

2024-04-09 Thread Wolfgang Schuster


seyal.zav...@gmail.com schrieb am 09.04.2024 um 14:53:

i want to produce a gradient header
i tried this code but it does not produce any result:

\startext
\def\Mystyle#1{\startMPcode
   picture tt ; tt := lmt_outline [
   kind = "path",
   text = "#1",
   ] ;
   fill
   for i within tt : pathpart i && endfor cycle
  withshademethod "linear"
  withshadedirection up
  withshadecolors (red, blue) ;
\stopMPcode
}

\definehead[Myhead][section]
\setuphead[Myhead][
   style=\Mystyle,
]
\startMyhead[title=sample] a sample text \stopMyhead
\stoptext


You can't use commands with parameters as argument for the style key.

To format single parts (number or title) of a section title you have to 
apply a command to the "deep...command" key but even then you have to 
make manual changes to the vertical alignment of the text.


 begin example
\starttexdefinition spaces Mystyle #1
  \setbox\scratchboxone\hbox{#1}%
  \setbox\scratchboxtwo\hbox\bgroup
\startMPcode
  picture tt ; tt := lmt_outline [
kind = "path",
text = "#1",
  ];
fill
  for i within tt : pathpart i && endfor cycle
  withshademethod "linear"
  withshadedirection up
  withshadecolors (red, blue) ;
\stopMPcode
  \egroup
  \boxyoffset\scratchboxtwo-\dp\scratchboxone
  \box\scratchboxtwo
\stoptexdefinition

\starttext

\setuphead
  [section]
  [
 deeptextcommand=\Mystyle,
%  deepnumbercommand=\Mystyle,
  ]

\startsection[title=Lorem ipsum]
\samplefile{lorem}
\stopsection

\stoptext
 end example


and the code below works but does not colorize numbers of this heads:
\starttext
 
\def\Mystyle#1{\startMPcode

   picture tt ; tt := lmt_outline [
   kind = "path",
   text = "#1",
   ] ;
   fill
   for i within tt : pathpart i && endfor cycle
  withshademethod "linear"
  withshadedirection up
  withshadecolors (red, blue) ;
\stopMPcode
}
 
\def\startMysection#1{\startsection[title=\Mystyle{#1}]}

\def\stopMysection{\stopsection}
 
\startMysection{hello}

what is best method?
\stopMysection
 
\stoptext


what is your suggestion?


To apply the format the the complete section title you have to create 
your own style and apply it with the "command" key, to get the number 
and title for the current section use the \structurenumber and 
\structuretitle macros.


 begin example
\starttexdefinition spaces protected Mystyle #1#2
  \startMPcode
picture tt ; tt := lmt_outline [
  kind = "path",
  text = "\structurenumber\space\structuretitle",
];
  fill
for i within tt : pathpart i && endfor cycle
withshademethod "linear"
withshadedirection up
withshadecolors (red, blue) ;
  \stopMPcode
\stoptexdefinition

\starttext

\setuphead
  [section]
  [command=\Mystyle]

\startsection[title=Lorem ipsum]
\samplefile{lorem}
\stopsection

\stoptext
 end example

Wolfgang
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[NTG-context] Re: blank line and \placefigure

2024-04-06 Thread Wolfgang Schuster


Henning Hraban Ramm schrieb am 06.04.2024 um 12:56:

Am 06.04.24 um 12:48 schrieb Thomas Meyer:
how can I suppress a blank line between a text paragraph and 
\placefigure?

I get one there, but I don't want it.


Did you try
\setupfloat[figure][spacebefore=,]
?
or "none" or "{disable,nowhite,back}"


You can set the space only for *all* floats, e.g.

    \setupfloat[spacebefore=...,spaceafter=...]

and not for a single float type only.

Wolfgang

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[NTG-context] Re: incosistent output of --- dash

2024-04-06 Thread Wolfgang Schuster


Henning Hraban Ramm schrieb am 06.04.2024 um 12:23:

Am 06.04.24 um 11:43 schrieb madiazm.eo...@gmail.com:

Hi everyone,
I'm a bit puzzled because I usually don't get an em-dash when I type 
tree hyphens. If I use the command \emdash, no problem but when I use 
the hyphens some days it works... and somedays I see three small 
hyphens.
I tried it on overleaf and of ContextOnWeb with the same 
inconsistency. If I create a new file it usually works right; but 
when I overwrite an existing file subtituting a hyphen for three 
where the dash should be I sometimes get it right and sometimes wrong.
It is not the pdf viewer since I get good or bad results in all, the 
overleaf pdf preview tool, the context on web preview tool and the 
mozilla integrated pdf viewer.


Am I missing something on the use of this ligature? (the question is 
just out of curiosity, since I plan to create a command that adds a 
hairspace after or before the dash, since I don't like it to stick to 
some letters like "o".


Generally, “we” try to reduce active characters as much as possible, 
that’s why -- and --- usually /don’t/ produce en or em dashes. You can 
activate these ligatures as a font feature though (AFAIR 
"latexhyphens", can’t find it…).


The name of the option has changes a few times and the current setting 
is textcontrol=collapsehyphens.



Some editors and some fonts do automatical replacements.


In this case it could be the wrong symbol in the document, there are 
many dashes in unicode which look similar in the input and output files.


\starttext

\startbuffer
\starttabulate[|T]
\NC U+0002D \NC - \NC -- \NC --- \NC\NR
\NC U+02011 \NC ‑ \NC ‑‑ \NC ‑‑‑ \NC\NR
\NC U+02012 \NC ‒ \NC ‒‒ \NC ‒‒‒ \NC\NR
\stoptabulate
\stopbuffer

\getbuffer

\setupbodyfont[pagella]

\getbuffer

\stoptext

Wolfgang

\starttext

\startbuffer
\starttabulate[|T]
\NC U+0002D \NC - \NC -- \NC --- \NC\NR
\NC U+02011 \NC ‑ \NC ‑‑ \NC ‑‑‑ \NC\NR
\NC U+02012 \NC ‒ \NC ‒‒ \NC ‒‒‒ \NC\NR
\stoptabulate
\stopbuffer

\getbuffer

\setupbodyfont[pagella]

\getbuffer

\stoptext


hyphen.pdf
Description: Adobe PDF document
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[NTG-context] Re: last page number for a list

2024-04-03 Thread Wolfgang Schuster


Alan Bowen schrieb am 30.03.2024 um 20:59:

How can I get the last page number of a chapter for a list (ToC)?

Outside of a list, I use \lastpagenumber.
But that does not work in a list such as the ToC.

Any tips or pointers will be gladly received.


You can try this:

\definepagestate[alanpage]
\definecounter  [alanindex]

\setuphead
  [chapter]
  [insidesection={\setpagestate[alanpage]},
   aftersection={\setpagestate[alanpage]}]

\setuphead
  [title]
  [insidesection=,
   aftersection=]

\define[1]\ChapterListPage

{\pagestaterealpage{alanpage}{\number\numexpr\incrementedcounter[alanindex]\relax}%
   \thinspace --\thinspace

\pagestaterealpage{alanpage}{\number\numexpr\incrementedcounter[alanindex]\relax}}

\setuplist[chapter][pagecommand=\ChapterListPage]
\setuplist[chapter][pagecommand=\ChapterListPage]

\showgrid

\starttext

\completecontent

\startchapter [title=Knuth]
\dorecurse{12}{\samplefile{knuth}}
\stopchapter

\startchapter [title=Zapf]
\dorecurse{12}{\samplefile{zapf}}
\stopchapter

\stoptext

Wolfgang
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[NTG-context] Re: what about "textdisplay"?

2024-04-01 Thread Wolfgang Schuster


Henning Hraban Ramm schrieb am 01.04.2024 um 18:29:

Am 01.04.24 um 18:21 schrieb Wolfgang Schuster:

Henning Hraban Ramm schrieb am 01.04.2024 um 17:19:
A while ago, I was pointed (by Wolfgang or Hans, I guess) to 
\start/stoptextdisplay to enhance whitespace handling around images.


My guess is Mikael because I saw the command the first time in the 
source of a presentation from him.


Oh, that’s probably where I saw it, too.


Here is a short example which two other solution to get a similar effect 
as \starttextdisplay.


\usemodule[visual]

\setupfloat[figure][location=left]

\starttext

\fakewords{10}{20}
\startlinecorrection
\fakeimage{4cm}{3cm}{6cm}{4cm}
\stoplinecorrection
\fakewords{10}{20}

\blank[2*line]

\fakewords{10}{20}
\startplacefigure[location={force,none}]
\fakeimage{4cm}{3cm}{6cm}{4cm}
\stopplacefigure
\fakewords{10}{20}

\blank[2*line]

\fakewords{10}{20}
\starttextdisplay
\fakeimage{4cm}{3cm}{6cm}{4cm}
\stoptextdisplay
\fakewords{10}{20}

\stoptext


I wanted to document it, but can’t find it in the sources:


The definition is in spac-ver.mkxl.


Thank you!

So, "context --find" does not what I thought it would.


AFAIR the find option searches only the manual sources.

Wolfgang

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[NTG-context] Re: what about "textdisplay"?

2024-04-01 Thread Wolfgang Schuster


Henning Hraban Ramm schrieb am 01.04.2024 um 17:19:
A while ago, I was pointed (by Wolfgang or Hans, I guess) to 
\start/stoptextdisplay to enhance whitespace handling around images.


My guess is Mikael because I saw the command the first time in the 
source of a presentation from him.



I wanted to document it, but can’t find it in the sources:


The definition is in spac-ver.mkxl.


$ context --find=textdisplay
[...]

These two documents use it and compile flawlessly.


 begin \definetextdisplay
 1 2 3
\definetextdisplay [...] [...] [..,..=..,..]
  OPT   OPT

1  NAME
2  NAME
3  inherits: \setuptextdisplay
 end \definetextdisplay

 begin \setuptextdisplay
  1   2
\setuptextdisplay [...,...] [..,..=..,..]
 OPT

1  NAME
2  before = COMMAND
   after  = COMMAND
   factor = NUMBER
 end \setuptextdisplay

 begin \starttextdisplay
*
\starttextdisplay [..,..=..,..] ... \stoptextdisplay
   OPT

*  inherits: \setuptextdisplay
 end \starttextdisplay

Wolfgang
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[NTG-context] Re: Underbar

2024-03-28 Thread Wolfgang Schuster


Willi Egger schrieb am 28.03.2024 um 17:23:

Hello everybody,

I have a text, where a couple of lines are typeset with \underbar. — To me this 
underbar is a fraction to near the text. So I wanted to use \setupbar[…] to 
change the offset. Unfortunately nothing happens whatever I try.

MWE:

\setupbar[offset=-.5,dy=-.5]


\setupbar[underbar][offset=-0.5]

Wolfgang

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[NTG-context] Re: Visually balanced columns

2024-03-27 Thread Wolfgang Schuster


Alexey Kryukov schrieb am 27.03.2024 um 14:02:

Hi list,

I'd like to know if its is possible to get visually balanced
mixedcolumns in lmtx. For example, if I have \blank's between
paragraphs, I would like them to be stretched or expanded by
a such way that the bottommost lines have the same vertical
position -- no matter, how many lines there are in each column and how
exactly they are aligned.

If I understand correctly, that's how the multicols environment in
LaTeX works, and that's how old-multicolumns worked -- but this module
seems to be no longer supported in lmtx.

I tried to disable gridfitting for startcolumns, but it produces a
completely distorted output.


The pagecolumns environment supports bottom aligned content.

\setupwhitespace[medium]

\setupalign[depth]

\starttext

\startpagecolumns
\dorecurse{20}{\samplefile{jojomayer}\par}
\stoppagecolumns

\stoptext

Wolfgang
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[NTG-context] Re: Headertext

2024-03-26 Thread Wolfgang Schuster


Thomas Meyer schrieb am 26.03.2024 um 16:28:

Hi folks,

I know, with

\setuphead[chapter][header=high]

I can suppress the header text on the first page. But what can I do if I 
still want to have part of the header text on the first page?

Is there something I can do with \definetext and if so, how?


When you use "header=high" you can't have a header because the block for 
it no longer exists, compare the results for "header=high" and 
"header=empty" in the following example.


 begin example
\showframe

\starttext

\setuphead[chapter][header=high]

\chapter{Lorem Ipsum}

\dorecurse{10}{\samplefile{lorem}}

\setuphead[chapter][header=empty]

\chapter{Lorem Ipsum}

\dorecurse{10}{\samplefile{lorem}}

\stoptext
 end example

As you have guessed \definetext is the way to create a custom header for 
the first page of your \chapter, the command has like \setupheadertexts 
a variable number of arguments.


The third argument with the horizontal position can only be used when 
you use two or four arguments to set texts on the left and right side 
but isn't in my example because a) the text position is the default and 
b) I pass only one argument for the content because I wan't the text in 
the middle.


 begin example
\showframe

\definetext
  [chapterheader] % identifier
  [header]% vertical position (header/footer)
% [text]  % horizontal position (text/margin)
  [This is a custom header for \tex{chapter}] % content

\setuphead[chapter][header=chapterheader]

\starttext

\chapter{Lorem Ipsum}

\dorecurse{10}{\samplefile{lorem}}

\stoptext
 end example

Wolfgang
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[NTG-context] Re: Unknown units es and dk

2024-03-23 Thread Wolfgang Schuster


Jan Ulrich Hasecke via ntg-context schrieb am 23.03.2024 um 13:57:

I saw this in (the btw great) bachotex-stepbystep presentation

\definepapersize
[example]
[width=8.5es,
height=11es]


\setuptextbackground
[location=paragraph,
backgroundcolor=MyColors:4,
backgroundoffset=1dk,
frame=off]


The units "es" and "dk" are unknown to me.
What does they mean?


Regarding the dk unit: https://tug.org/TUGboat/tb42-3/tb132hagen-dk.pdf


A quote from the Luametatex source regarding the es unit:

The Edith and Tove were introduced at BachoTeX 2023 and because the 
error message
was still in feet we decided to adapt it accordingly so now in addition 
it reports
different values, including Theodores little feet measured by Arthur as 
being roughly

five Ediths.


Here is the fitting error message when you pass a dimension too large 
for TeX:


Dimension too large", I can't work with sizes bigger than
about 19 feet (45 Theodores as of 2023), 575 centimeters,
Toves, 230 Ediths or 16383 points. Continue and I'll use
the largest value I can.


You should also take a look at the lowlevel register manual 
(lowlevel-registers.pdf)

which explains how you can define your own units.

Wolfgang

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[NTG-context] Re: Struggling with the distance and right margin text

2024-03-22 Thread Wolfgang Schuster


Ursula Hermann schrieb am 22.03.2024 um 15:57:

Dear Pablo,


Many thanks for your example. Sorry for writing so late.

At least I found out, how it works for me .  This is the best way.


\setuppapersize[A8,landscape]
\setupbodyfont[termes, 12.50pt]
\setuplayout[inrightmargin=5.1cm
              backspace=2.9cm,
              inleftmargin=0cm,width=4cm]


You can shorten the layout to

\setuplayout
  [backspace=2.9cm,
   width=4cm]

because inleftmargin and inrightmargin don't exist as layout settings 
but there is leftmargin and rightmargin without the leading *in*.


You can add

\showlayout

to see the effects on the layout.

Wolfgang
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[NTG-context] Re: offset with \copypages

2024-03-21 Thread Wolfgang Schuster


Peter Münster schrieb am 21.03.2024 um 15:04:

Hi,

When inserting pages with \copypages, the included pages are slightly
shifted to the left and to the bottom.

Minimal example:

% test-file.tex:
\setuplayout[page]
\starttext
\input tufte
\vfill
\input tufte
\stoptext

% test.tex:
\starttext

\startlayout[page]

\copypages[test-file.pdf]

\stoplayout

\stoptext

How could I avoid this offset please?
You have to change the layout for the pages where you include your 
images to get rid of the default margins.


Wolfgang

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[NTG-context] Re: command line arguments


Hraban Ramm schrieb am 19.03.2024 um 21:41:
Following up on the other imposition question, I'm trying to make an 
example file that shows an imposition schema according to command line 
arguments.


This way it works for the number of pages, as used in 
\dorecurse{\Pages}{…}, but not for the imposition schema. Typesetting 
\Schema looks right, but \setuparranging doesn’t work. Where's my error?


You forgot about expansion and in your case \doifelsedocumentargument is 
not fully expandable. This doesn't matter for \dorecurse where the 
number parser ignores the flag because \setuparranging does care and 
\Schema fails to expand.



\def\Schema{\doifelsedocumentargument{schema}{\getdocumentargument{schema}}{1*8}}

\def\Pages{\doifelsedocumentargument{numberofpages}{\getdocumentargument{numberofpages}}{16}}

\setuparranging[\Schema]


\doifelsedocumentargument{schema}
  {\setuparranging[\getdocumentargument{schema}]}
  {\setuparranging[1*8]}

It does also help to look at the included extra files (e.g. 
mtx-context-arrange.tex) written by Hans.


Wolfgang
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[NTG-context] Re: Suppress the Chapter Number in the Section Numbering


Jeroen schrieb am 19.03.2024 um 20:35:


I am trying to suppress the chapter number in a section number as 
below as in 1., 2., etc instead of 1.1, 1.2, etc. Is there a simple way 
to achieve this?



1. The First Chapter
1. The First Section
...
2. The Second Section
...

2. The Second Chapter
1. The Third Section
...
2. The Fourth Section
...


\setuphead
  [chapter]
  [sectionstopper=.]

\setuphead
  [section]
  [sectionsegments=section,
   sectionstopper=.]

\starttext

\chapter{The First Chapter}

\section{The First Section}

\section{The Second Section}

\chapter{The Second Chapter}

\section{The Third Section}

\section{The Fourth Section}

\stoptext

Wolfgang
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[NTG-context] Re: Adjusted Chapter Headings


Jeroen schrieb am 19.03.2024 um 12:59:
I have some style adjustments for the chapters. The chapter "numbers" 
need to be Boek I, Boek II, etc. A vertical separator was introduced 
with an inframe. The chapter title at the right side does not vertically 
align properly with the chapter number in the frame (inside the frame is 
vertically centered, the title not). Is there a way to align the chapter 
title with the chapter number?




\starttexdefinition MyNumberChapterCommand #1
     \inframed[frame=off,rightframe=on,framecolor=black,
      rulethickness=1px,height=30pt]{#1\enspace}
\stoptexdefinition

\setuphead[chapter][style={\bfc},numbercommand=\MyNumberChapterCommand,
     page=no]


\define[2]\MyNumberChapterCommand
  {#1\space\blackrule[width=1pt,height=22pt,depth=8pt]\space#2}

\setuphead
  [chapter]
  [   page=no,
   command=\MyNumberChapterCommand,
 style=\bfc]

Wolfgang
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[NTG-context] Re: Comments placed in the margin


Jeroen schrieb am 19.03.2024 um 19:34:

This one unbolds the margin text:

\setupmargindata[inouter][style=\tf]

This one works well, it unbolds and reduces the size of the margin text:

\setupmargindata
   [inouter]
   [style={\switchtobodyfont[8pt]}]

This one does not seem to make a change:

\setupmargindata[inmargin][style={\tf}]



It does for me but but unless you want a certain style it is better to 
use a empty argument for the style key.


\starttext

\inmargin{Bold?}\samplefile{lorem}

\setupmargindata[inmargin][style=]

\inmargin{Bold?}\samplefile{lorem}

\stoptext

Wolfgang
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[NTG-context] Re: Comments placed in the margin





Jeroen schrieb am 19.03.2024 um 15:38:
For comments that are placed in the margin, the \inleft{}, \inouter{} 
etc will place text in the margin in bold. Can this text be placed in 
the margin in regular text or possibly in slightly smaller font size 
compared to the regular text in the document?


\setupmargindata[inouter][style=]

or

\setupmargindata[inleft][style={\switchtobodyfont[8pt]}]

Wolfgang
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[NTG-context] Re: ck hyphenation in old German orthography

2024-03-17 Thread Wolfgang Schuster


Hraban Ramm schrieb am 17.03.2024 um 12:06:
Hi, the sample file aesop-de is in old German orthography, there, ck 
should get hyphenated as k-k, this doesn’t work (e.g. Mücke isn’t 
hyphenated at all). Is there something I can configure?


Hraban


\mainlanguage[deo]
\setuplanguage[deo][
   hyphenmin=4,
   lefthyphenmin=2,
   righthyphenmin=2,
]

\starttext

\hyphenatedfile{aesop-de}

\startcolumns
Funktioniert die Trennung? Heckeneckenzecken

\samplefile{aesop-de}

\stopcolumns

\stoptext


Just as a start, the languages manual provides more details about 
hyphenation.


\startexceptions[de]
He{k-}{k}{ck}en-e{k-}{k}{ck}en-ze{k-}{k}{ck}en
\stopexceptions

% \registerhyphenationpattern[de][c1k/k=k]
%
% \setuphyphenation[method=traditional]

\mainlanguage[de]

\starttext
Heckeneckenzecken = \hyphenatedword{Heckeneckenzecken}
\stoptext

Wolfgang
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[NTG-context] Re: issue with typing in footnotes

2024-03-17 Thread Wolfgang Schuster


Pablo Rodriguez via ntg-context schrieb am 17.03.2024 um 17:38:

Dear list,

I have the following sample (which was on the way of showing another issue):

   \starttext
   a
   \starttyping
   b
   \stoptyping
   c
   \startfootnote
   a
   \starttyping
   b
   \stoptyping
   c
   \stopfootnote
   \stoptext

Current latest (from 2024.03.11 09:34) breaks compilation with both LMTX
and LuaTeX.

As far as I know, this sample should be compiled without any issue.

Could you be so kind to confirm the issue or explain me what am I missing?


The footnote environment is just a fancy way for a command with a 
argument and buffers don't like being part of arguments.


You can put the code in buffer outside of the footnote and type the 
content of the buffer in the footnote.


 begin example
\starttext

\def\startfoo#1\stopfoo{#1}

% \startfoo
% xxx
% \starttyping
% yyy
% \stoptyping
% zzz
% \stopfoo

\startbuffer
yyy
\stopbuffer

\startfoo
xxx
\typebuffer
zzz
\stopfoo

\stoptext
 end example

Wolfgang
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[NTG-context] Re: can we do binding correction?

2024-03-17 Thread Wolfgang Schuster


Hraban Ramm schrieb am 17.03.2024 um 22:48:
Hi, this question was rised in my ConTeXt beginners workshop* at 
Chemnitz Linux Days today:


Can I configure binding correction for saddle-stitched or thread-bound 
booklets, and if, does it only work with arranging (imposition) or can 
I enable it somehow for the layout (if the printshop does the 
imposition)?


1. \definepageshift + \setuppageshift

2. \setuplayout[horoffset=]

Also I recognized I'm not sure about the difference of the layout 
parameters backspace and cutspace.


backspace is the inner margin and cutspace the outer

Wolfgang

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[NTG-context] Re: Japanese

2024-03-16 Thread Wolfgang Schuster


Otared Kavian schrieb am 14.03.2024 um 14:48:

Dear Emmanuel,

Thank you for your reply: indeed I understand your approach, which is 
quite efficient. I am not at all good in coding, so I naively thought 
there would be a way for your setup to retrieve the information it 
needs from what the user is doing. Maybe once things are settled, Hans 
and Wolfgang will have a look in the Japanese part of ConTeXt so that 
the user can avoid to enter the setup included in the \directlua part.


There is no need for these calculations because

    1. you can create named layouts (e.g. \definelayout[kinohanmen:a4]) 
for each paper size,


    2. you can put the fontsize etc. settings in a setups block and 
load the one needed for each paper size and


    3. you can put all of them in a module which can be loaded when 
writing documents in japanese, the paper size can be passed as argument 
to the module.


Wolfgang

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[NTG-context] Re: Why aren't cross-references working in tabulate?

2024-03-15 Thread Wolfgang Schuster


Joel via ntg-context schrieb am 15.03.2024 um 20:50:

When I run this code, \at{page}[xyz] is unable to find the cross reference:

\starttext
%\reference[xyz]{}
\starttabulate[|lp(.3\textwidth)|lp(.\textwidth)|]
\NC    \reference[xyz]{} \NC \NC\NR


\NC \doifnotmode{*trialtypesetting}{\pagereference[xyz]} \NC \NC\NR


\stoptabulate


\pagebreak

\at{page}[xyz]

\stoptext

The code does work when I uncomment line #2, revealing the 
cross-references work find when outside of a table.


I also tried using a TABLE environment instead and the result was 
similar, it wouldn't show the page number.


What am I doing wrong?


Tabulate and natural tables process the table content multiple times and 
therefore you're setting the reference multiple times, to avoid this 
check for trialtypesetting mode and set the reference only when you're 
out of the mode.


@Hans: Can we add the check trialtypesetting check to \reference etc.?

\protected\def\strc_references_set_named_reference
- {\ifreferencing
+ {\iftrialtypesetting
+\expandafter\gobblefourarguments
+  \orelse\ifreferencing
 \expandafter\strc_references_set_named_reference_indeed
   \else
 \expandafter\gobblefourarguments
   \fi}

Wolfgang
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[NTG-context] Re: How to track down source of [entry not flushed] displaying in indexes?

2024-03-13 Thread Wolfgang Schuster


Joel via ntg-context schrieb am 13.03.2024 um 23:27:
After many hours of trial-and-error, I was able to recreate the problem 
in a minimum working example:


file main.tex only contains:

\starttext

     \index{birds}
     \index{insects}

     \input secondary

     \placeindex

\stoptext

file secondary.tex only contains:


    \index{turtles}

For reasons I can't understand, the index produces the same [entry not 
flushed] error. It seems here happening when contents are input.


The message appears even without the external file.


My code is so simple, I can't understand what I've typed wrong.


Indices need an anchor to be flushed. When you put \index entries 
between environments the next anchor appears at the start of a new 
paragraph (I used \dontleavehmode for this in the following example).


\starttext

\index{birds}
\index{insects}

\index{turtles}

\dontleavehmode % comment this line for [entry not flushed]

\placeindex

\stoptext

Wolfgang
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[NTG-context] Re: Japanese

2024-03-11 Thread Wolfgang Schuster


Emanuel Han via ntg-context schrieb am 10.03.2024 um 17:43:

Hi all,

I added 
https://wiki.contextgarden.net/Chinese_Japanese_and_Korean#Meeting_the_JIS_X_4051_Requirements_for_Japanese_Text_Layout

with attached working example code and to-do list.

Thanks for any contributions!

The working example code is still a work in progress. Its text layout 
output meets already some of the requirements (see comments in the 
code). Among the ones to still be implemented are:


 *
solid setting (no extra spacing between characters)
https://www.w3.org/TR/jlreq/#fig1_8 if no requirement for
line-adjustment https://www.w3.org/TR/jlreq/#term.line-adjustment
 *
aligning of the lines to the Kihon-hanmen (optimizing the code
below in this regard)

Can you make text files out of the images [1] with the spacing 
before/after punctuation to have short examples for testing.


[1] https://www.w3.org/TR/jlreq/#positioning_of_punctuation_marks


 *
positioning and realm of headings
https://www.w3.org/TR/jlreq/#fig3_1_9
https://www.w3.org/TR/jlreq/#fig3_1_15 et al, and
https://www.w3.org/TR/jlreq/#fig3_1_4
 *
positioning of yokugo-ruby https://www.w3.org/TR/jlreq/#fig2_3_24
 *
inline cutting note (warichu) https://www.w3.org/TR/jlreq/#fig2_4_1
 *
emphasis with sesame dot or bullet
 *
itemization https://www.w3.org/TR/jlreq/#fig2_5_6

Circled numbered are easy and achieved by adding additional number 
conversions.


 *
indenting of quotation paragraphs
https://www.w3.org/TR/jlreq/#fig2_5_7


Use the narrower or blockquote environment for this.


 *
tab setting https://www.w3.org/TR/jlreq/#fig2_6_1


Just use a table.


 *
furiwake https://www.w3.org/TR/jlreq/#fig2_7_2
 *
jidori https://www.w3.org/TR/jlreq/#fig2_7_4
 *
math https://www.w3.org/TR/jlreq/#fig2_7_6 and
https://www.w3.org/TR/jlreq/#fig2_7_62
 *
tategaki (writing vertically)


Wolfgang

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[NTG-context] Re: \em issue in MkXL (2024.03.05 11:26)

2024-03-10 Thread Wolfgang Schuster


Hans Hagen via ntg-context schrieb am 10.03.2024 um 10:46:

On 3/10/2024 9:32 AM, Pablo Rodriguez via ntg-context wrote:

On 3/9/24 16:04, Wolfgang Schuster wrote:

Pablo Rodriguez via ntg-context schrieb am 08.03.2024 um 19:39:

[...]
    \enableexperiments[fonts.compact]

Which seeems weird to me. Or at least, I thought I read that Hans
enabled it by default in LMTX.


AFAIR Hans uses the setting in his own documents.


I have been using it for a while.

I hope the issue with \glyphslant might be fixed to enable it again.


Then my question is whether this was caused by simply enabling compact
fonts or by doing it twice.


The results happen when you use compact mode and is a result of
\glyphslant which keeps the value of the italic style even when you
switch back to the upright style.


Many thanks for your explaination,

using the low level commands

\glyphscale
\glyphxscale
\glyphyscale
\glyphslant
\glyphweight

directly can have side efects when at an outer level these are also set, 
so you need to accumulate, like


\starttext

test {\glyphscale 2000 test \glyphscale \numericscaled1.2\glyphscale 
test} test


test {\glyphslant  500 test \glyphslant \numericscaled2.0\glyphslant 
test} test


test {\glyphweight 100 test \glyphweight\numericscaled2.0\glyphweight 
test} test


\stoptext


The problem is that compact mode uses them to apply the slanted feature 
without any manual use of the commands from a user.


\enableexperiments[fonts.compact]

\definefontfamily[mainface][rm][TeX Gyre Termes]
  [it={style:regular, features:{default,slanted}},
   sl={style:regular, features:{default,slanted}}]

\setupbodyfont[mainface]

\starttext

\startstyle[style=italic]normal {\em emphasized} normal\stopstyle

\stoptext

The only way to mask the effect is to create a new fontfeature with the 
minimum slant value and apply it to the upright style.


\definefontfeature [unslanted] [slant=0.001]

\definefontfamily[mainface][rm][TeX Gyre Termes]
  [features={default,unslanted},
   it={style:regular, features:{default,slanted}},
   sl={style:regular, features:{default,slanted}}]

Wolfgang
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[NTG-context] Re: How to set section title based on section content?

2024-03-09 Thread Wolfgang Schuster


Joel via ntg-context schrieb am 09.03.2024 um 16:01:

How to set section title based on section content?

I have a document that has some structures like this:

\starttext

\startsection[title={Animals}]

\event{\input knuth }

\stopsection

\startsection[title={Books}]

\event{\input knuth }

\stopsection

\stoptext

The event macro runs a bunch of conditionals, deciding which content to 
place inside the section. It places any one of neary 200 possible 
different types of content there.


Sadly when I wrote the code, I thought generic titles would be okay. Now 
I realize I need to be more specific, giving titles that match the 
content inside. I could move the section titles inside the \event macro, 
but it means rewriting ~200 other macros.


In other words, how do I define a section title by defining it somewhere 
in the content of the \event macro?


\starttext

\startsection[\whatistitle] %<-- would display "Neon Tetras"

\event{\thetitleis{Neon Tetras}\input knuth }

\stopsection

\startsection[\whatistitle] %<-- would display "Detective Stories"

\event{\thetitleis{Detective Stories}\input knuth }

\stopsection

\stoptext


When each section contains nothing except the \event command I would 
remove the section titles from the document itself and place them as 
part of the \event command.


\define[1]\Event
  {\startsection[title={#1}]
   \input{knuth}
   \stopsection}

\starttext

\Event{Neon Tetras}

\Event{Detective Stories}

\stoptext

Wolfgang
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[NTG-context] Re: \em issue in MkXL (2024.03.05 11:26)

2024-03-09 Thread Wolfgang Schuster


Pablo Rodriguez via ntg-context schrieb am 08.03.2024 um 19:39:

On 3/8/24 19:09, Wolfgang Schuster wrote:

Pablo Rodriguez via ntg-context schrieb am 08.03.2024 um 18:50:

[...]
LMTX gets b, c and d in slanted form.

LuaTeX gets only b and c in slanted form.

[...]
I get b and d in italic which is the expected output.


Sorry, my LuaTeX is getting slanted b and d ("c" was my typo).

But I see what was causing my issue (line from
~/texmf/texmf-local/cont-loc.mkxl):

   \enableexperiments[fonts.compact]

Which seeems weird to me. Or at least, I thought I read that Hans
enabled it by default in LMTX.


AFAIR Hans uses the setting in his own documents.


Then my question is whether this was caused by simply enabling compact
fonts or by doing it twice.


The results happen when you use compact mode and is a result of 
\glyphslant which keeps the value of the italic style even when you 
switch back to the upright style.


\enableexperiments[fonts.compact]

\definefontfamily[mainface][rm][TeX Gyre Termes]
  [it={style:regular, features:{default,slanted}},
   sl={style:regular, features:{default,slanted}}]

\setupbodyfont[mainface]

\starttext
\tf h\showcurrentfont[]\crlf
\it h\showcurrentfont[]\crlf
%\glyphslant\zerocount
\tf h\showcurrentfont[]\crlf
\it h\showcurrentfont[]
\stoptext

Wolfgang
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[NTG-context] Re: \em issue in MkXL (2024.03.05 11:26)

2024-03-08 Thread Wolfgang Schuster


Pablo Rodriguez via ntg-context schrieb am 08.03.2024 um 18:50:

Dear list,

the following latest gets differents results when compiled with MkXL and
MkIV (in current latest from 2024.03.05 11:26):

   \definefontfamily[mainface][rm][TeX Gyre Termes]
 [features={default, quality},
  it={style: regular, features:{default, quality, slanted}},
  sl={style: regular, features:{default, quality, slanted}}]

   \setupbodyfontenvironment
   [default]
   [em=italic]

   \setupbodyfont[mainface]
   \starttext
   \startTEXpage[offset=1em]
   a\\
   \em b\\
   \em c\\
   \em d\\
   \stopTEXpage
   \stoptext

LMTX gets b, c and d in slanted form.

LuaTeX gets only b and c in slanted form.

I think LMTX may have an issue here.

Could anyone be so kind to confirm this?


I get b and d in italic which is the expected output.

Wolfgang

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[NTG-context] Re: imposition: getting to the last page of a booklet

2024-03-07 Thread Wolfgang Schuster


Pablo Rodriguez via ntg-context schrieb am 06.03.2024 um 20:17:

On 3/6/24 19:50, Wolfgang Schuster wrote:

[...]
Could you write the first line in plain language?


Look at the second example of the Lua code in the example below for each
command (the first example is your version), the third example is just a
condensed version of example 2.


Many thanks for your extended explanation, Wolfgang.


Here is another solution which uses \ifcase the select a different case 
dependent on the value of the remainder.


\def\beforequadruplenumber#1%
  {\ifcase\numexpr#1;4\relax
 \the\numexpr#1+3\relax % remainder = 0
   \or
 \the\numexpr#1+2\relax % remainder = 1
   \or
 \the\numexpr#1+1\relax % remainder = 2
   \or
 \the\numexpr#1+4\relax % remainder = 3
   \fi}

\def\afterquadruplenumber#1%
  {\ifcase\numexpr#1;4\relax
 \the\numexpr#1+1\relax % remainder = 0
   \or
 \the\numexpr#1+4\relax % remainder = 1
   \or
 \the\numexpr#1+3\relax % remainder = 2
   \or
 \the\numexpr#1+2\relax % remainder = 3
   \fi}



Now it is clearer to me (although I need some time to learn from it).


When you use \numexpr to perform arithmetic in TeX it is recommended to 
add a final \relax to stop the command from scanning to additional 
values, e.g. in the example below \testone takes value beyond the 
argument because \numexpr hasn't ended yet.


\starttext

\def\testone#1{\the\numexpr #1 + 1 }

\testone{1} + 1

\def\testtwo#1{\the\numexpr #1 + 1 \relax}

\testtwo{1} + 1

\stoptext

Wolfgang
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[NTG-context] Re: imposition: getting to the last page of a booklet


Hans Hagen schrieb am 06.03.2024 um 21:38:

On 3/6/2024 7:50 PM, Wolfgang Schuster wrote:

The semicolon is a undocumented extension (I noticed it in the 
definition of \page[quadruple]) of \numexpr in Luametatex for the 
modulus operator.


One of these days I have to write the pending section in th elow level 
manual and also explain this:


\starttext
    \ifnum  10  = 11 wrong \else okay  \fi
    \ifnum  10 != 11 okay  \else wrong \fi
    \ifnum  10 !> 11 okay  \else wrong \fi
    \ifnum  10 !< 11 wrong \else okay  \fi
    \ifnum  10 ≤  11 okay  \else wrong \fi
    \ifnum  10 ≥  11 wrong \else okay  \fi
    \ifnum  10 ≰  11 okay  \else wrong \fi
    \ifnum  10 ≱  11 wrong \else okay  \fi
    \ifnum "F0 ∈ "F0 okay  \else wrong \fi
    \ifnum "F0 ∉ "F0 wrong \else okay  \fi
\stoptext


These new features are mentioned in the Luametatex manual but not the 
additions to \numexpr (I checked and : is mentioned but ; is missing).


\starttext

\startlines
\number\numexpr 5 + 2 \relax
\number\numexpr 5 - 2 \relax
\number\numexpr 5 * 2 \relax
\number\numexpr 5 / 2 \relax
\number\numexpr 5 : 2 \relax % new!
\number\numexpr 5 ; 2 \relax % new!
\stoplines

\stoptext

Wolfgang

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[NTG-context] Re: missing metadata in LMTX


Pablo Rodriguez via ntg-context schrieb am 06.03.2024 um 20:11:

[...]

   \startxmlsetupsxml:meta
 %\aftergrouped{\setupinteraction%
 \setupmetadata
  [author={\xmlconcat{#1}{/h2[contains(@class,'author')]}{, }}]
 %}
   \stopxmlsetups


Use \expanded.

\startxmlsetups xml:meta
\expanded{\setupmetadata[author={\xmlconcat{#1}{/h2[contains(@class,'author')]}{, 
}}]}

\stopxmlsetups

Wolfgang

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[NTG-context] Re: missing metadata in LMTX


Pablo Rodriguez via ntg-context schrieb am 06.03.2024 um 20:11:

On 3/6/24 17:35, Wolfgang Schuster wrote:

Pablo Rodriguez via ntg-context schrieb am 06.03.2024 um 16:52:

[...]
I wonder whether this requires a minimal sample to be fixed.

Yes, a minimal example would help because \setupmetadata works in your
previous example.

Many thanks for your reply, Wolfgang.

Now I have the minimal sample:

[...]

   \startxmlsetups xml:meta
 %\aftergrouped{\setupinteraction%
 \setupmetadata
  [author={\xmlconcat{#1}{/h2[contains(@class,'author')]}{, }}]
 %}
   \stopxmlsetups


Use \expanded.

\startxmlsetups xml:meta
\expanded{\setupmetadata[author={\xmlconcat{#1}{/h2[contains(@class,'author')]}{, 
}}]}

\stopxmlsetups

Wolfgang

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[NTG-context] Re: imposition: getting to the last page of a booklet


Pablo Rodriguez via ntg-context schrieb am 04.03.2024 um 20:00:

On 2/28/24 19:28, Wolfgang Schuster wrote:

[...]
\def\beforequadruplenumber#1%
{\ifcase\numexpr#1+1;4\relax
   \number\numexpr#1+4\relax
 \else
   \number\numexpr#1+3-#1;4\relax
 \fi}


Sorry for not having answered before, Wolfgang.

I’m afraid I don’t get how \ifcase is deployed with as conditional
(being \ifcase used to give numbers for weekdays or months).


The \ifcase command is the TeX version of a switch statement from other 
programming languages.


The first case in \ifcase checks against zero which is shorter than 
writing "\ifnum ... = 0".



The semicolon is also mysterious to me, I don’t know what it does there
in plain language.


The semicolon is a undocumented extension (I noticed it in the 
definition of \page[quadruple]) of \numexpr in Luametatex for the 
modulus operator.



Sorry, I know it has to be simple, but the syntax is too cryptic for me.

Could you write the first line in plain language?


Look at the second example of the Lua code in the example below for each 
command (the first example is your version), the third example is just a 
condensed version of example 2.



Sorry for asking that. I’m afraid this would be the only way I could get
what \ifcase is doing there.


As was mentioned above I used it as a check when the remainder was 0.

 begin example
\startluacode

--~ interfaces.implement {
--~ name  = "beforequadruplenumber",
--~ arguments = "integer",
--~ actions   = function(n)
--~ if n % 4 == 0 then
--~ context(n + 3)
--~ elseif n % 4 == 1 then
--~ context(n + 2)
--~ elseif n % 4 == 2 then
--~ context(n + 1)
--~ elseif n % 4 == 3 then
--~ context(n + 4)
--~ end
--~ end
--~ }

--~ interfaces.implement {
--~ name  = "beforequadruplenumber",
--~ arguments = "integer",
--~ actions   = function(n)
--~ if (n + 1) % 4 == 0 then
--~ context(n + 4)
--~ else
--~ context(n + 3 - n % 4)
--~ end
--~ end
--~ }

interfaces.implement {
name  = "beforequadruplenumber",
arguments = "integer",
actions   = function(n)
context(n + (((n + 1) % 4 == 0) and 4 or (3 - n % 4)))
end
}

--~ interfaces.implement {
--~ name  = "afterquadruplenumber",
--~ arguments = "integer",
--~ actions   = function(n)
--~ if n % 4 == 0 then
--~ context(n + 1)
--~ elseif n % 4 == 1 then
--~ context(n + 4)
--~ elseif n % 4 == 2 then
--~ context(n + 3)
--~ elseif n % 4 == 3 then
--~ context(n + 2)
--~ end
--~ end
--~ }

--~ interfaces.implement {
--~ name  = "afterquadruplenumber",
--~ arguments = "integer",
--~ actions   = function(n)
--~ if n % 4 == 0 then
--~   context(n + 1)
--~ else
--~   context(n + 5 - n % 4)
--~ end
--~ end
--~ }

interfaces.implement {
name  = "afterquadruplenumber",
arguments = "integer",
actions   = function(n)
context(n + ((n % 4 == 0) and 1 or (5 - n % 4)))
end
}

\stopluacode

\unprotect
\def\beforequadruplenumber#1{\clf_beforequadruplenumber\numexpr#1\relax}
\def\afterquadruplenumber #1{\clf_afterquadruplenumber \numexpr#1\relax}
\protect

\starttext
\dorecurse{20}{\recurselevel\space = 
\beforequadruplenumber{\recurselevel}\par}\page
\dorecurse{20}{\recurselevel\space = \afterquadruplenumber 
{\recurselevel}\par}

\stoptext
 end example

Wolfgang

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[NTG-context] Re: missing metadata in LMTX


Pablo Rodriguez via ntg-context schrieb am 06.03.2024 um 16:52:

On 3/6/24 15:54, Hans Hagen wrote:

[...]

\setupmetadata
[title=FooBar]

that's for those who go global

Many thanks for the new command, Hans.

I‘m afraid this new command breaks my compilation.

The error message isn’t very helpful for me (see below).

I wonder whether this requires a minimal sample to be fixed.


Yes, a minimal example would help because \setupmetadata works in your 
previous example.


Wolfgang

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[NTG-context] Re: missing metadata in LMTX

2024-03-05 Thread Wolfgang Schuster


Pablo Rodriguez via ntg-context schrieb am 04.03.2024 um 07:17:

On 3/4/24 01:18, Wolfgang Schuster wrote:

Pablo Rodriguez via ntg-context schrieb am 03.03.2024 um 20:02:

[...]
With LuaTeX, I get PDF metadata. With LuaMetaTeX, I cannot get them.
[...]

I can confirm the issue and it happens because Hans changed they way
how the values of the \setupinteraction commands are passed to Lua
side of ConTeXt to be written to the PDF file.


Many thanks for your reply and your explanation, Wolfgang.


I can provide at the moment solutions which ensure the information
appear in the PDF but none of the is very elegant and I hope Hans
can help with a clean solution.


The first one avoids the issue until Hans provides a final fix.


Here is the official solution:

\startxmlsetups xml:meta
  \setupmetadata
[author={\xmltext{#1}{/author}},
 title={\xmltext{#1}{/title}}]
\stopxmlsetups

The command is new and accepts the following keys:

  - title
  - subtitle
  - author
  - keyword
  - date

Wolfgang
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[NTG-context] Re: \showsymbolset is noop

2024-03-05 Thread Wolfgang Schuster


Henning Hraban Ramm schrieb am 04.03.2024 um 21:24:
The \showsymbolset has no output any more, apparently already for some 
time.


I checked on COW (ConTeXt ver: 2022.12.22 22:17 LMTX fmt: 2022.12.23) 
and my local installation (ConTeXt ver: 2024.02.22 18:31 LMTX fmt: 
2024.2.22).


Can someone try on MkIV?

"""
\usesymbols[nav]
\starttext

\showsymbolset[nav]

\stoptext
"""


You pass the wrong name to \showsymbolset.

\usesymbols[nav]

\starttext

\showsymbolset[navigation 1]\page
\showsymbolset[navigation 2]\page
\showsymbolset[navigation 3]\page

\stoptext

Wolfgang
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[NTG-context] Re: .jpx and .jxl

2024-03-05 Thread Wolfgang Schuster





Jim schrieb am 04.03.2024 um 15:30:

Recently I've been trying to make some PDFs smaller by using better
compression of JPEG pictures.

I was happy to see that \externalfigure cheerfully accepts .jp2 (JPEG 2000)
files.  However, my understanding (and I could well be wrong, but I've seen
it multiple places) is that JPEG 2000 *Part 2* files should have extension
.jpx, not .jp2.

By default, ConTeXt does not recognize .jpx.  But if I rename a .jpx file
to have a .jp2 extension, then ConTeXt properly processes the file and I
see the picture in the PDF.

Q: are there any plans to make ConTeXt recognize the .jpx extension?
If not, can anyone suggest some ConTeXt code which allows me to tell
ConTeXt to process a .jpx file as a .jp2 file?



Adding

\definegraphictypesynonym [jpx] [jp2]

at the begin of your document should do the trick.

Wolfgang
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[NTG-context] Re: missing metadata in LMTX

2024-03-03 Thread Wolfgang Schuster


Pablo Rodriguez via ntg-context schrieb am 03.03.2024 um 20:02:

Dear list,

this issue has been bugging me for some time:

[...]

With LuaTeX, I get PDF metadata. With LuaMetaTeX, I cannot get them.

For both, I’m using current latest (from 2024.02.27 09:21).

Could anyone confirm the issue or explain me what I am missing


I can confirm the issue and it happens because Hans changed they way
how the values of the \setupinteraction commands are passed to Lua
side of ConTeXt to be written to the PDF file.

I can provide at the moment solutions which ensure the information
appear in the PDF but none of the is very elegant and I hope Hans
can help with a clean solution.

The first solution works around the grouping issue of the xmlsetups
environment and pushes the setting beyond the limit of it.

\startxmlsetups xml:meta
  \aftergrouped{\setupinteraction
[author={\xmltext{#1}{/author}},
 title={\xmltext{#1}{/title}}]}
\stopxmlsetups

The second solution makes the assignment to the \setupinteraction
command global to ensure they are kept even the environment ends,
int old MkII days ConTeXt provided a \startglobal environment to
do this but now I have rely on the primitives.

\startxmlsetups xml:meta
  \globaldefs\plusone
  \setupinteraction
[author={\xmltext{#1}{/author}},
 title={\xmltext{#1}{/title}}]
  \globaldefs\zerocount
\stopxmlsetups

Wolfgang
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[NTG-context] Re: Japanese

2024-03-02 Thread Wolfgang Schuster


Emanuel Han schrieb am 01.03.2024 um 16:23:

Dear Wolfgang,

thank you for your valuable remarks. I integrated them, see corrected 
attached example.


Yes, correct layout examples exist. They're all showing vertical 
writing, but the rules and principles are exactly the same for 
horizontal writing.


 *
position of the headers and footers:
https://www.w3.org/TR/jlreq/#fig1_30


See my attached gongitsune.tex example how you can squeeze text in a 
very narrow header/footer.



 *
aligning lines to the text box: https://www.w3.org/TR/jlreq/#fig1_3


You can use the lines key for \setuplayout to let ConTeXt calculate the 
necessary value for the text height.



 *
protrusion of ruby: https://www.w3.org/TR/jlreq/#fig_ad1_6


You're getting this for free because ruby text doesn't take up vertical 
space, in case vertical text is working it would now stick into the 
margins as expected.


\starttext
\ruledhbox{a \ruby{x}{y} b}
\stoptext


In my previous mail, I wrote wrong amounts of lines. They should be 46 
lines on one page, while the actual example doesn't show the 46th line.


It would be important to identify the reason why only 24 characters 
are used to create a line when 25 could be used. Then we can develop a 
method to turn that mechanism off or circumvent it.

Quotation from https://www.w3.org/TR/jlreq:
/In principle, when composing a line with //ideographic (cl-19) 
//, //hiragana (cl-15) 
// and //katakana (cl-16) 
// characters, no extra spacing 
appears between their //character frame 
//. This is called 
solid setting (see //Figure 5 //)./


1. ConTeXt has a mechanism to typeset Japanese texts.

2. There are flaws in the output it produces but this nothing which 
can't be fixed.


3. To fix the problems someone has to be passionate to fix them and 
we're willing to help here.


As you can see in my second example file japanese.tex there is a font 
feature to create half sized parentheses etc. which isn't supported yet 
by ConTeXt's mechanism for japanese and in case your willing to improve 
it this should be taken care of as well.


Wolfgang

\definefontfeature [halt] [halt=yes]

\starttext

\setscript[nihongo]

\begingroup \showmakeup[glyph,fontkern]

% \startfont[file:notosanscjkjpregular*default]「うわアぬすと狐め」と、どなりたてました。\stopfont
% 
% \startfont[file:notosanscjkjpregular*default]「「うわアぬすと狐め」と、「どなりたてました」。\stopfont
% 
% 
\startfont[file:notosanscjkjpregular*default,halt]「うわアぬすと狐め」と、どなりたてました。\stopfont
% 
% 
\startfont[file:notosanscjkjpregular*default,halt]「「うわアぬすと狐め」と、「どなりたてました」。\stopfont

\startfont[name:notosansjpregular*default]「うわアぬすと狐め」と、どなりたてました。\stopfont

\startfont[name:notosansjpregular*default]「「うわアぬすと狐め」と、「どなりたてました」。\stopfont

\startfont[name:notosansjpregular*default,halt]「うわアぬすと狐め」と、どなりたてました。\stopfont

\startfont[name:notosansjpregular*default,halt]「「うわアぬすと狐め」と、「どなりたてました」。\stopfont

\endgroup

\stoptext
% \definefontfeature [fixeddimensions] [dimensions={1,1.8,0}]
% 
% \definefontfamily [noto_japanese] [rm] [Noto Serif CJK JP] 
[features={default,fullprotrusion,fixeddimensions}]
% \definefontfamily [noto_japanese] [ss] [Noto Sans CJK JP]  
[features={default,fullprotrusion,fixeddimensions}]

% \definefontfamily [noto_japanese] [rm] [Noto Serif CJK JP] 
[features={default,fullprotrusion}]
% \definefontfamily [noto_japanese] [ss] [Noto Sans CJK JP]  
[features={default,fullprotrusion}]

\definefontfamily [noto_japanese] [rm] [Noto Serif JP] 
[features={default,fullprotrusion}]
\definefontfamily [noto_japanese] [ss] [Noto Sans JP]  
[features={default,fullprotrusion}]

\setupbodyfont
  [noto_japanese]

\setscript
  [nihongo]

\setupalign
  [hanging]

\setupindenting
  [yes,1em]

\setupinterlinespace
  [line=2\bodyfontsize,
   height=0.9,
   depth=0.1]

\setupruby
  [style={\switchtobodyfont[6pt]}]

\setuppagenumbering
  [alternative=doublesided,
   location=none]

\setuphead
  [title,subject]
  [align=middle]

\startsetups [header:rightpage]

  \startframed [
  frame=off,
  strut=no,
  height=\headerheight,
  offset=none,
  align=low,
  roffset=1em,
  ]

\getmarking[subject]

  \stopframed

\stopsetups

\startsetups [header:leftpage]

  \startframed [
  frame=off,
  strut=no,
  height=\headerheight,
  offset=none,
  align=low,
  loffset=1em,
  ]

\getmarking[title]

  \stopframed

\stopsetups

\startsetups [footer:rightpage]

  \startframed [
  frame=off,
  strut=no,
  height=\headerheight,
  offset=none,
  align=low,
  roffset=1em,
  ]

\prefixedpagenumber

  \stopframed

\stopsetups

\startsetups [footer:leftpage]

  \startframed [
  frame=off,
  strut=no,
  height=\headerheight,
  offset=none,
  align=low,
  loffset=1em,
  ]

\prefixedpagenumber

  \stopframed

[NTG-context] Re: Japanese

2024-03-01 Thread Wolfgang Schuster


Emanuel Han via ntg-context schrieb am 01.03.2024 um 13:08:

Dear all, thanks for your contributions.

Sure I'll update the 
https://wiki.contextgarden.net/Chinese_Japanese_and_Korean hopefully 
with the help of Jeong Dal and others as soon as things are sorted out.


In attached example, the opening Brackets (I marked them with 
\color[red]{【} and \color[red]{｛}) are taking the previous character 
with them to the next line. Please remove these to see that the 
previous character would stay on the previous line. Thanks Wolfgang 
for checking wether this is a bug.


Can you stick to fonts which are available for all systems (e.g. Noto 
CJK) because system fonts are a pain when you're on a different system.


The missing line break before 【 is caused by a wrong table entry in 
scrp-cjk.lua and I guess the following change is necessary


local japanese_2 = {
    jamo_initial = korean_break,
    korean   = stretch_break,
    chinese  = stretch_break,
    hiragana = stretch_break,
    katakana = stretch_break,
    half_width_open  = nobreak_stretch_break_autoshrink,
    half_width_close = nobreak_stretch,
-   full_width_open  = nobreak_stretch_break_shrink,
+   full_width_open  = stretch_break,
    full_width_close = nobreak_stretch,
    full_width_punct = japanese_before_full_width_punct, -- 
nobreak_stretch,

    hyphen   = nobreak_stretch,
    non_starter  = nobreak_stretch,
    other    = stretch_break,
}

but there can be more wrong entries.

I was not successful in figuring out how the protrusion mechanism can 
be set in order to keep full stops and commas on the previous line 
(protruding the column box). Could you please give me a hint, 
Wolfgang? Thanks. There's a \color[red]{。} in my example which should 
not jump to the next line.


Adding the first and last line to your example document worked for me.

\definefontfeature [default] [default] [protrusion=pure]

\definefontfamily [...] [...] [...]

\setupbodyfont [...]

\setupalign [hanging]

My example follows the Kihon-hanmen dimensioning as described in 
https://www.w3.org/TR/jlreq . What could be the reason that lines 
which could hold 25 characters are having only 24 characters, for 
example lines 2, 3 or 13 in column 1? I would expect them to have 25 
characters, the same as for example lines 7, 9 or 16 in column 1.


I guess the par builder is responsible for this when it arranges the 
paragraph but this is just a guess.


How can I change alignment of the lines so that the highest character 
boxes align with the top border of the layout boxes for text and 
header and with the bottom border of the layout box for footer? I hope 
that when this is achieved for the layout box for text, then this box 
would hold the expected 45 lines, and not 44 lines as it is doing now. 
Ruby characters in the first line should protrude the box, what they 
already do.
I tried to implement the 1em hskip of the header and footer away from 
the page border. While it works for left aligned headers and footers, 
it doesn't for the right aligned headers and footers (negative hskip 
has no effect). How to solve this problem?


Do you a proper example of the layout?

Setting a few values is not enough because TeX doesn't work the way you 
need for your layout. Things can be improved but in cases like header 
and footer you have to tell ConTeXt there are no characters with depth.



Also how to get rid of the first empty page?


To load a math font from a typescript you have to use the 
\definetypeface command, replace the line


    \definefontfamily [JapaneseFont] [mm] [math] [lucidaot] [default]

with

    \definetypeface [JapaneseFont] [mm] [math] [lucidaot] [default]

and the page disappears.

Wolfgang

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[NTG-context] Re: Japanese

2024-02-28 Thread Wolfgang Schuster

Emanuel Han via ntg-context schrieb am 28.02.2024 um 20:51:

Thank you all for your suggestions and contributions to the wiki.

I don't intend to nag, but when looking at what ConTeXt is producing,
I need to state that the result is still far away from a properly
typeset Japanese text.

So the nihongo script which comes with ConTeXt handles *line breaks /
line wrapping*. But the line break rules defined in it need a rework,
because they don't follow the standards. The standards are documented
here:
https://www.w3.org/TR/jlreq/#possibilities_for_linebreaking_between_characters
, and all affected characters are listed here:
https://www.w3.org/TR/jlreq/tables/table_en3.pdf

We have different rules, depending what kind of character is
surpassing the text width (or is in its last position).

Rule 1:

Before closing brackets, closing quotation marks, iteration marks, the
Prolonged sound mark and small Kana, line breaking is prohibited.

’”）〕］｝〉》」』】ヽヾゝゞ々ーぁぃぅぇぉァィゥェォっゃゅょッャュョ etc.

Rule 2:

After opening Brackets and opening quotation marks, line breaking is
prohibited (but not before).

‘“（〔［｛〈《「『【

The actual programmed behaviour by the nihongo script is that these
characters jump to the next line and take the previous character with
them. This behaviour is wrong. They should jump to the next line
without taking the previous character with them, just like any regular
character. The difference to a regular character is that they jump
already when still within the line length, and they're in the last
position of the line. The correct behaviour can be seen in LibreOffice
Writer in action.

Can you provide a minimal example because this should be correct and if
not it's a bug.

Rule 3:
Comma (tōten), full width comma, full stop

、，。

The actual programmed behaviour by the nihongo script is that, if in
the position which exceeds the line width, these characters jump to
the next line and take the previous character with them. This
behaviour is wrong.
They have to be put back to the end of the previous line, but beyond
the specified line length. (JIS Z 8125) (Search for "Line adjustment
by hanging punctuation" under https://www.w3.org/TR/jlreq/ )
If they're in the last position of the line, they stay where they are.
The correct behaviour can be seen in LibreOffice Writer in action.

This is handled by the protrusion mechanism and enabled with paragraph
alignment.

Rules 4, 5, ...:
Combinations of inseparable characters... (see
https://www.w3.org/TR/jlreq/#possibilities_for_linebreaking_between_character
) and eventually more, which I didn't test.

It might be useful to define three scripts nihongo_loose,
nihongo_strict and nihongo_very_strict which each implement one of the
3 cases described here: https://www.w3.org/TR/jlreq/#addendum_a

According the *line gap* (Otared uses \setupwhitespace[big], which is
exceeding common line gaps), I'd like to quote from
https://www.w3.org/TR/jlreq/ :

/It is common that the line gap for the kihon-hanmen is set to a value
between half-em spacing and the one em spacing of the character frame
used for the kihon-hanmen. Half-em spacing can be chosen in cases
where the line length is short, but one em spacing or close to it is
more appropriate when the line length is longer than 35 characters./

I like the standard line gap which is provided by ConTeXt, which is
equivalent to \setupwhitespace/[0pt]/. Even when using ruby, it works
well. I found the best voffset for ruby to be -1.7ex.

The \setupwhitespace setting controls the distance between paragraphs
but you're looking for the \setuplinespace command.

The *line adjustment* provided by ConTeXt by default is not meeting
the needs for Japanese (and Chinese) text, which follow a grid
pattern. Especially the last line of a paragraph is squeezed, which is
"hurting the eye".
When characters need to jump to the next line due to previously
discussed line breaking rules, ConTeXt seems to apply "Line adjustment
by inter-character spacing expansion", which is a valid method
according to https://www.w3.org/TR/jlreq/#line_adjustment , although
"Line adjustment by inter-character spacing reduction" is preferred.

The last point which ConTeXt is missing, when talking about Japanese
typesetting, is vertical writing.

Vertical typesetting is possible but only for small text blocks which
fit on a single page. Typesetting text which spans multiple pages isn't
supported yet (it was possible ages ago with MkII) because nobody needed
it yet.

Wolfgang

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[NTG-context] Re: imposition: getting to the last page of a booklet

2024-02-28 Thread Wolfgang Schuster


Pablo Rodriguez via ntg-context schrieb am 28.02.2024 um 19:02:

On 2/28/24 12:24, Pablo Rodriguez via ntg-context wrote:

[...]
This is why beforequadruple would make sense. I guess some Lua magic
could do that, computing x to the follwing page that "x % 4 = 3" (and
then \page[x]).

I will try to find a trick for that, but not now.


Replying to myself, this is a command to compute next numbers before and
after quadruples (with application to \realpageno):

  \starttext
   \def\beforequadruplenumber#1%
 {\ifnum\modulonumber{4}{#1} = 1
\the\numexpr #1 + 2
  \orelse\ifnum\modulonumber{4}{#1} = 2
\the\numexpr #1 + 1
  \orelse\ifnum\modulonumber{4}{#1} = 3
\the\numexpr #1 + 4
   \else
\the\numexpr #1 + 3
  \fi}


\def\beforequadruplenumber#1%
  {\ifcase\numexpr#1+1;4\relax
 \number\numexpr#1+4\relax
   \else
 \number\numexpr#1+3-#1;4\relax
   \fi}


   \def\afterquadruplenumber#1%
 {\ifnum\modulonumber{4}{#1} = 1
\the\numexpr #1 + 4
  \orelse\ifnum\modulonumber{4}{#1} = 2
\the\numexpr #1 + 3
  \orelse\ifnum\modulonumber{4}{#1} = 3
\the\numexpr #1 + 2
   \else
\the\numexpr #1 +1
  \fi}


\def\afterquadruplenumber#1%
  {\ifcase\numexpr#1;4\relax
 \number\numexpr#1+1\relax
   \else
 \number\numexpr#1+5-#1;4\relax
   \fi}

Wolfgang
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[NTG-context] Re: Issue with italics

2024-02-26 Thread Wolfgang Schuster


Jean-Pierre Delange schrieb am 26.02.2024 um 18:41:

Thanks to Thomas and Denis,

That's it: use GFS Didot for the French text and Theano Didot for the 
Greek. In my working text I have this preamble (and other things):


[...]

I've found a solution, with Segoeui (Windows font) as the main font and 
Theano Didot for the Greek text.
But I don't understand why setting the fonts to GFS Didot and Theano 
Didot prevents italics from being displayed ...



Can you show the output of the following command on the terminal which 
lists all available font files for GFS Didot:


mtxrun --script fonts --list --all --pattern=gfsdidot*

Wolfgang
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[NTG-context] Re: imposition: getting to the last page of a booklet

2024-02-24 Thread Wolfgang Schuster


Michael Guravage schrieb am 23.02.2024 um 10:07:

Greetings,

I would like to use the nextquadruple and beforequadruple 
pagebreakhandlers described at the bottom of the wiki's imposition 
page. However, the examples complain of an error invoking the 
\installpagebreakhandler command.


The wiki page was last updated nearly four years ago. Is anyone using 
updated versions of these?


You can use quadruple out of the box.

\setuppagenumbering[alternative={singlesided,doublesided}]

\starttext

\samplefile{lorem}

\page[quadruple]

\samplefile{lorem}

\stoptext

Wolfgang

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[NTG-context] Re: MetaPost lines in tables?

2024-02-21 Thread Wolfgang Schuster


Henning Hraban Ramm schrieb am 21.02.2024 um 19:04:

Am 19.02.24 um 23:15 schrieb Wolfgang Schuster:

Henning Hraban Ramm schrieb am 19.02.2024 um 22:39:

I guess I asked this a while ago, but I can’t find an answer:
Is it possible to replace the lines of a TABLE with my own MetaPost 
graphics?


ATM I’m trying to place my MP lines behind a frame-less TABLE; it 
will probably work, but it’s a crutch…


The example below draws a custom border for the whole cell but you're 
free to draw only certain sides (leftboundary etc. helps) but don't 
forget to set the boundary box for the graphic (OverlayBox is the size 
of the cell).


 begin example
\startuseMPgraphic{dottedborder}
   draw OverlayBox withpen pencircle scaled 2 dashed withdots 
withcolor "red";

\stopuseMPgraphic

\defineoverlay[dottedborder][\useMPgraphic{dottedborder}]

\starttext

\bTABLE[frame=off,background=dottedborder]


Thank you!

Since I needed only horizontal lines, I forced the height with an 
“invisible“ line:


\startuseMPgraphic{dottedborder}
    draw (0,0)--(0,OverlayHeight) withpen pencircle scaled 0.001 
withcolor white;
    draw (0,0)--(OverlayWidth,0) withpen pencircle scaled 2 dashed 
withdots withcolor "red";

\stopuseMPgraphic

… but it would be visible on a colored background. I’m sure you can show 
me a better way…


\startuseMPgraphic{dottedborder}
  draw bottomboundary OverlayBox withpen pencircle scaled 2 dashed 
withdots withcolor "red";

  setbounds currentpicture to OverlayBox;
\stopuseMPgraphic

Wolfgang
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[NTG-context] Re: MetaPost lines in tables?

2024-02-19 Thread Wolfgang Schuster


Henning Hraban Ramm schrieb am 19.02.2024 um 22:39:

I guess I asked this a while ago, but I can’t find an answer:
Is it possible to replace the lines of a TABLE with my own MetaPost 
graphics?


ATM I’m trying to place my MP lines behind a frame-less TABLE; it will 
probably work, but it’s a crutch…


The example below draws a custom border for the whole cell but you're 
free to draw only certain sides (leftboundary etc. helps) but don't 
forget to set the boundary box for the graphic (OverlayBox is the size 
of the cell).


 begin example
\startuseMPgraphic{dottedborder}
  draw OverlayBox withpen pencircle scaled 2 dashed withdots withcolor 
"red";

\stopuseMPgraphic

\defineoverlay[dottedborder][\useMPgraphic{dottedborder}]

\starttext

\bTABLE[frame=off,background=dottedborder]
  \bTR
\bTD Hello Table! \eTD
  \eTR
\eTABLE

\stoptext
 end example

Wolfgang
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[NTG-context] Re: Text in Margin

2024-02-19 Thread Wolfgang Schuster


Jeroen schrieb am 19.02.2024 um 14:14:
In a textbook I am looking to place a large left margin at every page of 
each chapter. At left printed pages a left margin and at right printed 
pages a right margin, so like a double sided construction. In this 
margin I would like to place:


You can use a custom layout with a narrow text block and a wide 
rightmargin area.



1. Keywords and small descriptions to emphasize some text from the textflow


Use the \inright etc. commands or create your own commands based on 
\inright, look at the margindata mechanism for more information.



2. Figures


You can change the default location of figures from the text block to 
the margin area.


3. An expansion of a table that is placed in the main textflow but that 
needs to cover a wider range then the text area so it expands into the 
margin


In the example below I added a check to the table float to either center 
the small tables or align wide tables on the inner margin which extend 
into the margin area. While this method works in a simple example for a 
real document I suggest to create a clone of the table float (e.g. 
widetable) because the method in the example can lead to 
problems/limitations.



What is the the easiest way to achieve this?


 begin example
\setuppagenumbering
  [alternative=doublesided]

\setuplayout
  [width=10cm,
   rightmargin=6cm]

\showframe

\def\FloatTableALignment
  {\dowithnextbox
 {\ifdim\nextboxwd>\textwidth
\doalignedline{inner}{\flushnextbox}%
  \else
\flushnextbox
  \fi}
 \hbox}

\setupfloat[table][command=\FloatTableALignment]

\setupfloat[figure][default=rightmargin]

\starttext

\inright{Lorem ipsum \unknown}\samplefile{lorem}

\startplacefigure
  \externalfigure[dummy][width=\rightmarginwidth]
\stopplacefigure

\samplefile{lorem}

\startplacetable
  \bTABLE
\bTR
  \bTD one \eTD
  \bTD two \eTD
  \bTD three \eTD
\eTR
  \eTABLE
\stopplacetable

\samplefile{lorem}

\startplacetable

\bTABLE[textwidth=\dimexpr\textwidth+\rightmarginwidth+\rightmargindistance\relax,option=stretch]
\bTR
  \bTD one \eTD
  \bTD two \eTD
  \bTD three \eTD
\eTR
  \eTABLE
\stopplacetable

\samplefile{lorem}

\stoptext
%%% end example

Wolfgang
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[NTG-context] Re: XML processing, unwanted indentation/alignment

2024-02-15 Thread Wolfgang Schuster


Michael Guravage schrieb am 15.02.2024 um 21:28:

Greetings,

I'm typesetting an address book whose addresses are in XML. A typical 
entry has this structure:


   
     
     
       email="" mobile="" />

       
       
     
   

initials and birthday are required, first_name can be left blank and 
email, mobile and maiden_name are optional.


I've written a macro (name) to compose the name, i.e. initials, 
first_name (maiden_name), and another macro (nameemaillink) to make the 
name a link associated with an email address.


% Derive an individual's name
\def\name#1%
   {\ifxmlattempty{#1}{first_name} {\xmlatt{#1}{initials}} \else 
{\xmlatt{#1}{initials}, \xmlatt{#1}{first_name}} \fi
    \ifxmlattempty{#1}{maiden_name} {} \else { 
\tfxx(\xmlatt{#1}{maiden_name})} \fi}


You have a few spaces in the definition of your command (e.g. the space 
after \else and another one after the following { in the main_name 
attribute) which end as multiple spaces in the output.


While you can fix the problem by removing the spaces a better solution 
is to use the texdefinition environment to create your command, you can 
even use blank lines to structure the arguments.


To avoid problems with existing commands it is good practice to use 
camelcase for your own commands.


 begin example
\starttexdefinition Name #1

  \ifxmlattempty{#1}{first_name}
\xmlatt{#1}{initials}
  \else
\xmlatt{#1}{initials}, \xmlatt{#1}{first_name}
  \fi

  \ifxmlattempty{#1}{maiden_name}
%
  \else
{\tfxx(\xmlatt{#1}{maiden_name})}
  \fi

\stoptexdefinition
 end example

Wolfgang
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[NTG-context] Re: Two bugs with descriptions in ConTeXt.


SirColeman via ntg-context schrieb am 13.02.2024 um 22:04:
The first bug is that descriptions interfere with the counters, 
resulting in the peculiar behavior demonstrated in the resulting PDF.


Still no bug and there is no need to create your own counter because 
enumerations exist which are descriptions with a counter.


Unless I'm mistaken, I think it happens because the head of the 
description is evaluated twice, thus incrementing the counter 
twice---at least, that's the only explanation for how the number is 
incremented by 2 each time. Further, this issue seems to persist 
whether we're using macros or writing \incrementcounter directly.


The solution is to either make sure that the head of descriptions is 
evaluated only once, or document that text placed as the head of 
descriptions is meant to be evaluated twice, if there's a good reason 
for doing so. Of course, this silly example of incrementing counters 
can be subdued by placing the \incrementcounter directly in the after 
option when customizing descriptions. But it demonstrates the issue.


What you're supposed to do here is to increment the counter *before* you 
use the counter value.


As you guessed the content of the title is evaluated multiple times to 
get the width of the description title, in cases where a counter is 
incremented in such a case (very common when you have counters in a 
table cell) you use the trialtypesetting mode to increment only once.


I've tried to make the examples given be as varied as possible, 
demonstrating the different ways in which descriptions interact with 
the counter.


The second bug is that descriptions, or at least that's my intuitive 
expectation, shouldn't interfere with the bullets of items. I expect 
that the bullet stays where it is, and the description is placed next 
to it. But what happens is that the bullet is shifted to the right, 
making it overlap with the description's head, which isn't pretty.


Is this even a real world example?

The reason why the bullet points are at the wrong position is that 
descriptions and items use the same mechanism to set the text offset on 
the left and right sides and when you combine both mechanism the values 
are added. In case you you have a document where a descriptions appear 
as part of an item I suggest to use a different alternative (e.g. 
serried) for the description layout.


Wolfgang

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[NTG-context] Re: An announcement of my new book.


SirColeman via ntg-context schrieb am 13.02.2024 um 20:44:
>> This is wrong, the counter commands are official and the number 
variants are kept for backwards compatibility with old styles.


I do recall reading on the ConTeXt wiki that \definenumber is 
maintained for backwards compatibility reasons. However, why then does 
ConTeXt fail to compile with \getcounter, if that's how it's supposed 
to work? I was confused, don't get me wrong, but what I wrote was my 
own conclusion on the matter.


Clearly, we have a bug that needs to be reported. I wish my email 
hadn't included such misinformation. But now, this is a bug that needs 
to be resolved.


I'm running ConTeXt version 2024.01.24, and the given attachment fails 
to compile, even with MkIV.


I don't want to pester those subscribed to this mailing list with bug 
reports, so I thought it would be more sensible to post such reports 
on the context developers mailing list. I ask for confirmation that I 
can post there instead of here.


There is no command named \getcounter, only \convertedcounter exists. 
The two older commands \getnumber and \convertednumber are aliases for 
the new \convertedcounter command.


You can report bugs on this list (no need to use the more or less dead 
dev list) but in this case there is no bug, just different names.


Wolfgang

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[NTG-context] Re: An announcement of my new book.


SirColeman via ntg-context schrieb am 12.02.2024 um 08:49:
Greetings all. I have a passion for typesetting. I found that 
currently the best typesetting systems are those that are based on 
TeX. Of them, there are LaTeX, and ConTeXt.
LaTeX is very well documented and popular; ConTeXt, on the other hand, 
is apparently very powerful and capable, but is not as well documented.


There are things that are spectacularly well documented, others that 
only show hints, and leave it up to the user to figure things out on 
their own, and others still that won't even compile on a more recent 
version of ConTeXt (apparently the proper way to access a counter's 
value in ConTeXt is to use \getnumber or \convertednumber, and not 
\getcounter. That's just an example).


This is wrong, the counter commands are official and the number variants 
are kept for backwards compatibility with old styles.


Wolfgang

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[NTG-context] Re: Section numbering does not work


Oliver Marugg schrieb am 13.02.2024 um 00:17:

Hi

Section numbering does not work until I remove \startbackmatter 
\stopbackmatter. I had a longer text file and I stripped it down until I found 
this?

Greets Oliver


Running freshly installed context ARM64 on m1 and updated it via sh install.sh 
on ARM64 macos 14.3.1:

context --version
mtx-context | ConTeXt Process Management 1.05
mtx-context |
mtx-context | main context file: 
/Applications/ConTeXtStandalone/tex/texmf-context/tex/context/base/mkiv/context.mkiv
mtx-context | current version: 2024.01.24 22:39
mtx-context | main context file: 
/Applications/ConTeXtStandalone/tex/texmf-context/tex/context/base/mkxl/context.mkxl
mtx-context | current version: 2024.01.24 22:39
--

Stripped down MWE:

\setuppapersize[A4] [A4]
\starttext
\completecontent[criterium=all]
% ToC
\page
\chapter{CHAP 1}
TEXT
\startbackmatter
\startchapter[title=Literature]
\placelistofpublications
\stopchapter
\stopbackmatter
\stoptext


Besides enabling numbering for the backpart you can use the appendix 
block which has numbering by default.


%\defineconversionset[appendix:default][n]

\starttext

\startfrontmatter
  \completecontent[criterium=all]
\stopfrontmatter

\startbodymatter
  \startchapter[title=CHAP 1]
  TEXT
  \stopchapter
\stopbodymatter

\startappendices
  \startchapter[title=Literature]
  \placelistofpublications
  \stopchapter
\stopappendices

\stoptext

Wolfgang
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[NTG-context] Re: removing whitespace