Re: [NTG-context] Making metafun pictures fainter (shading, uncolored clash)
Hi List, I made good progress producing fainter pictures in metafun. Here is a uniformly accelerated cow in the style of my book. PastedGraphic-2.pdf Description: Adobe PDF document I abandoned transparency, since I actually don’t want to see through anything. I am using uncolored to get the fade. It works great with a picture that is made with fill and draw, but it doesn’t work with shading. The example below has a flat disk and a round ball. The disk looks fine, but the shaded ball is not surviving the application of inverted / uncolored. \startMPinclusions picture disk, ball; disk := image( fill fullcircle scaled 1cm withcolor .4white; draw fullcircle scaled 1cm withpen pencircle scaled 0.8pt ;); ball := image( fill fullcircle scaled 1cm withshademethod "circular" withshadecenter (.25,.25) withshadecolors (.8white, black); draw fullcircle scaled 1cm withpen pencircle scaled 0.8pt ;); \stopMPinclusions \startMPpage draw inverted (disk uncolored .1white) ; draw inverted (disk uncolored .2white) shifted (0.25cm,0) ; draw inverted (disk uncolored .5white) shifted (1cm,0) ; draw disk shifted (2.25cm,0) ; draw inverted (ball uncolored .1white) shifted (0, -2cm) ; draw inverted (ball uncolored .2white) shifted (0.25cm, -2cm) ; draw inverted (ball uncolored .5white) shifted (1cm, -2cm) ; draw ball shifted (2.25cm, -2cm) ; \stopMPpage Gracht.pdf Description: Adobe PDF document Same result in LMTX and MkIV. (ConTeXt ver: 2021.09.17 10:01 LMTX fmt: 2021.9.21 int: english/english) I’m pretty happy with this uncolored trick, and will be even happier if I can get it to work with the shadings. Any suggestions? Gavin___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___
Re: [NTG-context] ConTeXt's equivalent of raisebox
noib3 via ntg-context schrieb am 11.10.2021 um 00:16:
How can I make vertical microadjustments to individual characters in
ConTeXt?
In LaTeX I would do it with
```
\documentclass{article}
\begin{document}
\raisebox{-1pt}{f}oo
\end{document}
```
however the following doesn't work
```
\starttext
\raisebox{-1pt}{f}oo
\stoptext
```
The \raisebox command expects a box for the second argument. A better
solution is to use the \offset command but in both cases you need
\dontleavehmode at the start of a paragraph.
begin example
\starttext
\dontleavehmode\raisebox{1pt}\hbox{f}oo
\dontleavehmode\offset[y=-1pt]{f}oo
\stoptext
end example
Wolfgang
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[NTG-context] ConTeXt's equivalent of raisebox
How can I make vertical microadjustments to individual characters in
ConTeXt?
In LaTeX I would do it with
```
\documentclass{article}
\begin{document}
\raisebox{-1pt}{f}oo
\end{document}
```
however the following doesn't work
```
\starttext
\raisebox{-1pt}{f}oo
\stoptext
```
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Re: [NTG-context] SyncTeX does not work with Zathura
On 10/10/2021 7:20 PM, Cezary Drożak wrote:
> you can play with
>
> mtxrun --script synctex
>
> and the synctex file to see if it makes sense
I wrote two almost identical files in plain tex and context. When I
generated the synctex file and ran `mtxrun --script synctex --list
x.synctex` I got this:
```
$ mtxrun --script synctex --list context.synctex
mtx-synctex | begin page: 1
mtx-synctex | end page: 1
$ mtxrun --script synctex --list tex.synctex
mtx-synctex | begin page: 1
mtx-synctex | [ 72 82 92 82] : 1 :
/home/nawordar/tests/tex/hello/./tex.tex
mtx-synctex | end page: 1
```
It looks like context generates an incomplete synctext file.
I can't say ... what is missing? Can you figure out what makes Zathura
unhappy?
The context synctex files are definitely less verbose because (1) we
avoid clutter, (2) omit auto-generated content like pagenumbers and so,
(3) collapse ranges (which we can do because we know what we're dealing
with), (4) don't compress (because it makes no sense), (5) ignore
styles, (6) also handle xml, etc. There have been some changes between
synctex 1 and 2 but I don['t keep track of that. Actually, if a 'call
some command' approach would have been chosen we could have better
readable files (in our case lua or so).
> one problem with synctex is that the editors depend on a library and
there has been changes
>
> texshop now uses the more independent method for context i.e. just
calling "mtxrun --script synctex ..." which not only removes the
dependency of a library (the dependency on mtxrun is ok as one has
context anyway) but also permits room for improvement (apart from not
being tricked by latex specific heuristics in the library)
But that would need a change in Zathura wouldn't it?
sure, so unlikely to happen soon (i have no influence on that)
(but it would have been a better approach anyway, not being dependent on
libraries that that depend on specific synctex versions in tex as well
as heuristics; basically now one needs a version of the editor/viewer
that matches a tex engine); one doesn't hard code a pdf viewer in an
editor either (btw, the script approach permits two way sync, so in
texshop one can go from pdf to source and source to pdf)
here with
\starttext
Hello, world!
\stoptext
i get
SyncTeX Version:1
Input:1:oeps.tex
Output:pdf
Magnification:1000
Unit:1
X Offset:0
Y Offset:0
Content:
!103
{1
[0,0:0,0:0,0,0
v0,0:0,55380990:39158276,55380990,0
h1,6:4661756,9176901:4275840,655360,327680
]
!104
}1
!8
Postamble:
Count:3
!22
Post scriptum:
(also with context --synctex oeps)
Hans
-
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-
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Re: [NTG-context] SyncTeX does not work with Zathura
> you can play with > > mtxrun --script synctex > > and the synctex file to see if it makes sense I wrote two almost identical files in plain tex and context. When I generated the synctex file and ran `mtxrun --script synctex --list x.synctex` I got this: ``` $ mtxrun --script synctex --list context.synctex mtx-synctex | begin page: 1 mtx-synctex | end page: 1 $ mtxrun --script synctex --list tex.synctex mtx-synctex | begin page: 1 mtx-synctex | [ 72 82 92 82] : 1 : /home/nawordar/tests/tex/hello/./tex.tex mtx-synctex | end page: 1 ``` It looks like context generates an incomplete synctext file. > one problem with synctex is that the editors depend on a library and there has been changes > > texshop now uses the more independent method for context i.e. just calling "mtxrun --script synctex ..." which not only removes the dependency of a library (the dependency on mtxrun is ok as one has context anyway) but also permits room for improvement (apart from not being tricked by latex specific heuristics in the library) But that would need a change in Zathura wouldn't it? ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___
Re: [NTG-context] SyncTeX does not work with Zathura
On 10/10/2021 6:11 PM, Cezary Drożak via ntg-context wrote:
Hello,
I have been trying to get SyncTeX to work with ConTeXt and Zathura, but
nothing
seems to work.
I created a simple `hello.mklx` file and ran `context --synctex=-1
hello.mklx`.
Then I launched Zathura with `zathura -x "nvr -cc \"call
vimtex#view#reverse_goto(%{line}, '%{input}')\" --nostart" hello.pdf`.
When I clicked "Hello, world!" while holding a control key it printed the
following error to console:
```
(org.pwmt.zathura:80241): GLib-CRITICAL **: 15:49:12.359:
g_variant_new_string: assertion 'string != NULL' failed
warning: Failed to obtain data via SyncTeX or data is incomplete.
```
I am attaching the `hello.mklx`, `hello.pdf` files and the generated
`hello.synctex` file. I am getting the same result with `--synctex=1`.
you can play with
mtxrun --script synctex
and the synctex file to see if it makes sense
one problem with synctex is that the editors depend on a library and
there has been changes
texshop now uses the more independent method for context i.e. just
calling "mtxrun --script synctex ..." which not only removes the
dependency of a library (the dependency on mtxrun is ok as one has
context anyway) but also permits room for improvement (apart from not
being tricked by latex specific heuristics in the library)
Hans
-
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-
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Re: [NTG-context] Acrobat doesn’t read imported metadata
On 10/10/2021 5:46 PM, Pablo Rodriguez via ntg-context wrote:
Dear list,
I have the following sample:
\starttext
\startluacode
function document.transfer_metadata(name)
local main_doc = lpdf.epdf.load(name)
lpdf.addtoinfo("Title", lpdf.unicode(main_doc.Info.Title),
lpdf.string(main_doc.Info.Title))
lpdf.addtoinfo("CreationDate",
lpdf.string(main_doc.Info.CreationDate))
lpdf.addtoinfo("ModDate", lpdf.string(main_doc.Info.ModDate),
main_doc.Info.ModDate)
lpdf.epdf.unload(name)
end
\stopluacode
\unexpanded\def\TransferMetadata#1%
{\ctxlua{document.transfer_metadata("#1")}}
\startTEXpage[offset=1em, align=center]
\ssbf metadatos\\importados
\TransferMetadata{metadata.pdf}
\stopTEXpage
\stoptext
Being the sample file https://pdf.ousia.tk/metadata.pdf, Acrobat cannot
display the imported title or either the creation or modification dates.
What am I missing to make Acrobat display the imported metadata?
timing, so best use the official methods:
function document.transfer_metadata(name)
local main_doc = lpdf.epdf.load(name)
context.setupinteraction { title = main_doc.Info.Title }
lpdf.epdf.unload(name)
end
acrobat looks at the metadata blob
-
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-
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[NTG-context] undefined command in current latest
Dear list,
I have the following sample:
\setupheadertexts[{\getmarking[chapter]}]
\starttext
\chapter{Chapter}
\stoptext
It compiles perfectly fine with MkIV from 2021.10.08 20:18, but its LMTX
version triggers the following error message:
Undefined control sequence \??markingfilter
Previous LMTX version compiled just fine.
I think it might be a bug.
Many thanks for your help,
Pablo
--
http://www.ousia.tk
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[NTG-context] SyncTeX does not work with Zathura
Hello,
I have been trying to get SyncTeX to work with ConTeXt and Zathura, but
nothing
seems to work.
I created a simple `hello.mklx` file and ran `context --synctex=-1
hello.mklx`.
Then I launched Zathura with `zathura -x "nvr -cc \"call
vimtex#view#reverse_goto(%{line}, '%{input}')\" --nostart" hello.pdf`.
When I clicked "Hello, world!" while holding a control key it printed the
following error to console:
```
(org.pwmt.zathura:80241): GLib-CRITICAL **: 15:49:12.359:
g_variant_new_string: assertion 'string != NULL' failed
warning: Failed to obtain data via SyncTeX or data is incomplete.
```
I am attaching the `hello.mklx`, `hello.pdf` files and the generated
`hello.synctex` file. I am getting the same result with `--synctex=1`.
Regards,
Cezary Drożak
hello.pdf
Description: Adobe PDF document
SyncTeX Version:1
Output:pdf
Magnification:1000
Unit:1
X Offset:0
Y Offset:0
Content:
!86
{1
[0,0:0,0:0,0,0
v0,0:0,55380990:39158276,55380990,0
]
!60
}1
!7
Postamble:
Count:2
!22
Post scriptum:
\starttext
Hello, world!
\stoptext
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[NTG-context] Making metafun pictures fainter
Hi list, I’m trying to produce figures like this, showing motion as a series of snap-shots, with the earlier moments more faint. PastedGraphic-1.pdf Description: Adobe PDF document Here are three examples of metafun code using transparency and “decorated". \startMPinclusions picture ball; ball := image( draw fullcircle scaled 1cm withshademethod "circular" withshadecenter (.25,.25) withcolor "lightgray" shadedinto black; draw fullcircle scaled 1cm withpen pencircle scaled 0.8pt;); \stopMPinclusions \starttext \startMPpage draw decorated (draw ball) withtransparency (1,.2); draw decorated (draw ball shifted (1cm, 0cm)) withtransparency (1,.4); draw decorated (draw ball shifted (4cm, 0cm)) withtransparency (1,.6); draw ball shifted (9cm, 0cm); \stopMPpage \startMPpage draw decorated (draw ball) withtransparency (1,.2); draw decorated (draw ball shifted (0.25cm, 0cm)) withtransparency (1,.4); draw decorated (draw ball shifted (1cm, 0cm)) withtransparency (1,.6); draw ball shifted (2.25cm, 0cm); \stopMPpage \startMPpage draw decorated (draw ball) withtransparency (1,.2); filldraw fullcircle scaled 1cm withcolor white withpen pencircle scaled 0.8pt shifted (0.25cm, 0cm); draw decorated (draw ball shifted (0.25cm, 0cm)) withtransparency (1,.4); filldraw fullcircle scaled 1cm withcolor white withpen pencircle scaled 0.8pt shifted (1cm, 0cm); draw decorated (draw ball shifted (1cm, 0cm)) withtransparency (1,.6); draw ball shifted (2.25cm, 0cm); \stopMPpage \stoptext Transparency alone does a good job if the objects don’t overlap (first example). If they do overlap, it’s kind of a mess (second example). I get a much better result if I put a white circle behind each transparent ball so that they look lighter without showing the earlier objects through them (third example). However, that solution is going to be difficult for more complex shapes. I tried drawing the shape using “redecorated () withcolor white", to draw the white background object, but only the outline appears white. The circular shading disappears altogether, leaving the ball fill area transparent. I also tried to use something like “softened .8” but could not get that to produce any output. Any ideas? Thanks! Gavin___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___
[NTG-context] Acrobat doesn’t read imported metadata
Dear list,
I have the following sample:
\starttext
\startluacode
function document.transfer_metadata(name)
local main_doc = lpdf.epdf.load(name)
lpdf.addtoinfo("Title", lpdf.unicode(main_doc.Info.Title),
lpdf.string(main_doc.Info.Title))
lpdf.addtoinfo("CreationDate",
lpdf.string(main_doc.Info.CreationDate))
lpdf.addtoinfo("ModDate", lpdf.string(main_doc.Info.ModDate),
main_doc.Info.ModDate)
lpdf.epdf.unload(name)
end
\stopluacode
\unexpanded\def\TransferMetadata#1%
{\ctxlua{document.transfer_metadata("#1")}}
\startTEXpage[offset=1em, align=center]
\ssbf metadatos\\importados
\TransferMetadata{metadata.pdf}
\stopTEXpage
\stoptext
Being the sample file https://pdf.ousia.tk/metadata.pdf, Acrobat cannot
display the imported title or either the creation or modification dates.
What am I missing to make Acrobat display the imported metadata?
Many thanks for your help,
Pablo
--
http://www.ousia.tk
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Re: [NTG-context] Default values for key-value macros
On 10/10/2021 2:01 PM, noib3 via ntg-context wrote:
The way I've been defining key-value macros is to first pass them to
Lua, handle the parsing there thanks to
`utilities.parsers.settings_to_hash` and then assign the resulting Lua
table to ConTeXt variables.
This worked fine up to now, but I'm having problems with the following MWE:
```
\def\style#1[#2] {
\ctxlua{userdata.style([==[#2]==])}
\placestyle
}
here you overload a core macro
\startluacode
userdata = userdata or {}
userdata.style = function(keyvals)
local style = {
color = nil,
text = nil,
}
args = utilities.parsers.settings_to_hash(keyvals)
use "local args" here ^
for k, v in pairs(args) do
style[k] = v
end
context.setvariables({'style'}, style)
end
\stopluacode
\define\placestyle{
\doiftext
{\getvariable{style}{text}}
{\color[\getvariable{style}{color}]{\getvariable{style}{text}}}
}
\starttext
\style[
text={Some red text},
color=red,
]
\style[
color=blue,
]
\stoptext
```
Here I assign a default value of `nil` to every key, and then check if
the `text` variable is empty before printing it. I would expect the
second macro not to print anything since its `text` should be nil,
instead both macros print 'Some red text', the first one in red and the
second one in blue.
context.setvariables
like any setting, it accumulates unless you group
I have attached a screenshot of the output.
What am I doing wrong?
local style = {
color = "",
text = "",
}
or you can go fancy with:
\startluacode
interfaces.implement {
name = "MyStyle",
public= true,
protected = true,
arguments = "hash",
actions = function(a)
if a.text and a.text ~= "" then
if a.color and a.color ~= "" then
context.color( { a.color }, a.text)
else
context(a.text)
end
end
end
}
\stopluacode
\MyStyle[
text={Some blue text},
color=blue,
]
\MyStyle[
color=blue,
]
\MyStyle[
text={test \em test},
]
-
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-
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Re: [NTG-context] Converting LaTeX math to ConTeXt
On 10/10/21 3:23 AM, Hans Hagen wrote:
what do you mean with 'quite different'
Hans
Hi Hans,
My current stumbling block is dealing with the `align` environment.
I replace `\begin{align}/\end{align}` with
`\startmathalignment/\stopmathalignment`, and replace all `&` characters
with `\NC` and `\\` with `\NR`, which is simple enough.
However, the two commands work differently - `align` doesn't care
how many columns you have, but `mathalignment` does. This makes dealing
with aligned equations containing matrices hard - you can't just count
how many `&`s you see before you get to a `\\`, because you might be
inside of a matrix in which case they don't count.
Also, `mathalignment` and `matrix` want a leading `\NC` to start each
column, while LaTeX `align` and `matrix` just want `&` as a column
separator.
These are just a couple examples, but in general it's not enough to do
naive string substitution in LaTeX and get valid ConTeXt back, and my
patchwork solutions are starting to smell.
Thanks,
Jason
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Re: [NTG-context] Unusual error with \doifinstring in \startbtxrenderingdefinitions ... \stopbtxrenderingdefinitions
Thanks for these replies! Adding \unexpanded or \protected before \def
didn't fix the problem, and surrounding the definition with \unprotect ...
\protect didn't work either. But surrounding it with \pushcatcodetable
\setcatcodetable\ctxcatcodes ... \popcatcodetable worked.
I've never seen these commands before, but I gather from the existing
documentation that the current catcode governs which characters are treated
as special when a buffer is being processed. So here, it looks like I'm
temporarily switching from some other catcode set (it looks like in
publ-ini.mkiv, \catcode\commentasciicode\othercatcode gets invoked
in \publ_set_publication, so perhaps that's what's happening?) to the
default ConTeXt catcodes and then back.
Thanks again!
Joey
On Sun, Oct 10, 2021 at 6:40 AM Wolfgang Schuster <
wolfgang.schuster.li...@gmail.com> wrote:
> Joey McCollum via ntg-context schrieb am 10.10.2021 um 05:42:
>
> The test using \removepunctuation that you provided does what it should be
> doing (it produces 6 instances of "test-test" with the intervening
> punctuation mark in each case removed), but it doesn't do what I'm trying
> to do in the MWE above. I'm trying to take certain punctuation marks that
> follow the \autopuncttest macro and place them before it instead. Looking
> at the typo-chr .lua and .mkiv files, I see that there are \pushpunctuation
> and \poppunctuation methods in addition to the \removepunctuation method.
> These might be useful for this purpose, but in any case, I still have to
> check if the trailing character is one of the characters in a specified
> set/string, and this is where the error is arising.
>
>
> Add \protected (or \unexpanded) to your command definition.
>
> \startbtxrenderingdefinitions[myspec]
> \protected\def\autopuncttest#1#2%
> {\removeunwantedspaces%
>\doifinstring{#2}{,.!?;:}{#2}%
>\footnote{#1}%
>\doifnotinstring{#2}{,.!?;:}{#2}}
> \stopbtxrenderingdefinitions
>
> Wolfgang
>
>
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[NTG-context] Default values for key-value macros
The way I've been defining key-value macros is to first pass them to Lua,
handle the parsing there thanks to `utilities.parsers.settings_to_hash` and
then assign the resulting Lua table to ConTeXt variables.
This worked fine up to now, but I'm having problems with the following MWE:
```
\def\style#1[#2] {
\ctxlua{userdata.style([==[#2]==])}
\placestyle
}
\startluacode
userdata = userdata or {}
userdata.style = function(keyvals)
local style = {
color = nil,
text = nil,
}
args = utilities.parsers.settings_to_hash(keyvals)
for k, v in pairs(args) do
style[k] = v
end
context.setvariables({'style'}, style)
end
\stopluacode
\define\placestyle{
\doiftext
{\getvariable{style}{text}}
{\color[\getvariable{style}{color}]{\getvariable{style}{text}}}
}
\starttext
\style[
text={Some red text},
color=red,
]
\style[
color=blue,
]
\stoptext
```
Here I assign a default value of `nil` to every key, and then check if the
`text` variable is empty before printing it. I would expect the second
macro not to print anything since its `text` should be nil, instead both
macros print 'Some red text', the first one in red and the second one in
blue.
I have attached a screenshot of the output.
What am I doing wrong?
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Re: [NTG-context] SciTE configuration Mac
On 10/8/2021 6:39 PM, MANUEL GONZALEZ SUAREZ via ntg-context wrote: Hi everyone: Could someone send me a minimal configuration for the SciTE editor of the files needed to work with ConTeXt? I work with MaC OS Big Sur. There are some scite related files in the distribution that you can look at (context/data/scite). In principle the built-in lexers (called internal there) should work with context (using the keyword lists). The external lexers depend on the scintillua dll/so and the latest updats drops that (for various reasons) and I now use the OnStyle lua feature of scite. However, it still do't work out of the box because they assume lpeg to be built in. On my machine I have a version with a few lines patch that does that and this is what I'm currently testing with (i can put a scite.zip somewhere if needed but that won't help you on osx; if lpeg ever makes it into stock scite it should work there too). You can try to copy the files that ships with context in the scite home path and add import context/scite-context-user to the global properties files and see what happens Hans - Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl - ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___
Re: [NTG-context] Unusual error with \doifinstring in \startbtxrenderingdefinitions ... \stopbtxrenderingdefinitions
Joey McCollum via ntg-context schrieb am 10.10.2021 um 05:42:
The test using \removepunctuation that you provided does what it
should be doing (it produces 6 instances of "test-test" with the
intervening punctuation mark in each case removed), but it doesn't do
what I'm trying to do in the MWE above. I'm trying to take certain
punctuation marks that follow the \autopuncttest macro and place them
before it instead. Looking at the typo-chr .lua and .mkiv files, I see
that there are \pushpunctuation and \poppunctuationmethods in addition
to the \removepunctuation method. These might be useful for this
purpose, but in any case, I still have to check if the trailing
character is one of the characters in a specified set/string, and this
is where the error is arising.
Add \protected (or \unexpanded) to your command definition.
\startbtxrenderingdefinitions[myspec]
\protected\def\autopuncttest#1#2%
{\removeunwantedspaces%
\doifinstring{#2}{,.!?;:}{#2}%
\footnote{#1}%
\doifnotinstring{#2}{,.!?;:}{#2}}
\stopbtxrenderingdefinitions
Wolfgang
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Re: [NTG-context] Unusual error with \doifinstring in \startbtxrenderingdefinitions ... \stopbtxrenderingdefinitions
On 10/10/2021 5:42 AM, Joey McCollum wrote:
The test using \removepunctuation that you provided does what it should
be doing (it produces 6 instances of "test-test" with the intervening
punctuation mark in each case removed), but it doesn't do what I'm
trying to do in the MWE above. I'm trying to take certain punctuation
marks that follow the \autopuncttest macro and place them before it
instead. Looking at the typo-chr .lua and .mkiv files, I see that there
are \pushpunctuation and \poppunctuationmethods in addition to the
\removepunctuation method. These might be useful for this purpose, but
in any case, I still have to check if the trailing character is one of
the characters in a specified set/string, and this is where the error is
arising.
maybe you're in protected mode
% assumes \protect earlier
\unprotect
\def\autopuncttest#1#2{%
\removeunwantedspaces%
\doifinstring{#2}{,.!?;:}{#2}%
\footnote{#1}%
\doifnotinstring{#2}{,.!?;:}{#2}%
}
\protect
% assumes \unprotect later
or something
\pushcatcodetable \setcatcodetable\ctxcatcodes
\def\autopuncttest#1#2{%
\removeunwantedspaces%
\doifinstring{#2}{,.!?;:}{#2}%
\footnote{#1}%
\doifnotinstring{#2}{,.!?;:}{#2}%
}
\popcatcodetable
Joey
On Sat, Oct 9, 2021 at 12:50 PM Hans Hagen > wrote:
On 10/9/2021 5:40 PM, Joey McCollum via ntg-context wrote:
> Hi,
>
> I'm trying to define concise biblatex-style citation macros for a
custom
> bibliographic style specification with support for intelligent
placement
> of trailing punctuation, and I've encountered an unusual error.
If I try
> to define the macros within the btxrenderingdefinitions environment,
> then the code for handling trailing punctuation with the
> \doifinstring and \doifnotinstring macros fails in some cases.
> Specifically, it correctly detects when the trailing punctuation
is a
> period, comma, or semicolon, but not when it is a colon, exclamation
> point, or question mark. The following MWE reproduces the error:
>
> ```
\starttext
test,\removepunctuation -test
test;\removepunctuation -test
test:\removepunctuation -test
test?\removepunctuation -test
test!\removepunctuation -test
test.\removepunctuation -test
\stoptext
-
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.nl
| www.pragma-pod.nl
-
--
-
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-
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___
Re: [NTG-context] Undefined control sequence \??markingfilter, with MWE to recreate
On 10/9/2021 9:53 PM, Rik Kabel via ntg-context wrote:
Error with 20211008 ConTeXt:
%\setupheadertexts [][][{\it\getmarking[chapter]}][] % fails
\setupheadertexts [][][{\getmarking[chapter]}][] % fails
%\setupheadertexts [][][\getmarking[chapter]][] % succeeds
\starttext
\chapter{abc}
abc
\chapter{def}
def
\stoptext
no failure here, but actually the last one should fail (dummy page) due
to nested []
Hans
-
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-
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___
Re: [NTG-context] Converting LaTeX math to ConTeXt
On 10/10/2021 5:45 AM, Jason Ross via ntg-context wrote: Hello, I'm trying to provide more support for LaTeX math for an Org Mode exporter for ConTeXt. LaTeX is the de facto standard for mathematics in Org Mode. However, the syntax is quite different between LaTeX and ConTeXt. I have a few ideas, but none that I'm happy about. 1. Export LaTeX to MathML then import that into ConTeXt. I don't know how to get this to work. latexmlmath only returns the first row of `align` environments (for me anyway). Also, this would require users to install another program. 2. Typeset equations with LaTeX as standalone pages and then include them as images. This will typeset everything with LaTeX defaults. Also, either equation alignment or equation numbering will break. 3. Hack every math environment I can think of to accept LaTeX syntax (see https://wiki.contextgarden.net/LaTeX_Math_in_ConTeXt). Lots of work, lots of problems as described in the article. End-users could add their own hacks to the template preamble for cases I don't get to. 4. Manually parse and convert every LaTeX math environment to ConTeXt before exporting. Basically a non-starter. I'm wondering what's the best way to go about this. Surely others have run into the same problem? what do you mean with 'quite different' Hans - Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl - ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___
Re: [NTG-context] Does the ConTeXt distro come with a PDFViewer?
All, Thanks for the tips. SumatraPDF worked well as it updates as the underlying PDF is refreshed by ConTeXt - which makes the dev-preview cycle really quick. I will compile all the tips in this thread into the Wiki. best regards, Ramkumar On Sun, Oct 10, 2021 at 12:53 AM Henri Menke via ntg-context < ntg-context@ntg.nl> wrote: > On Sat, 2021-10-09 at 18:47 +0200, Hans Hagen via ntg-context wrote: > > On 10/9/2021 3:07 PM, Ramkumar KB via ntg-context wrote: > > > Hello Community, > > > > > > If my memory serves me correctly, I might have noticed (in one of the > > > presentations during the recent ConTeXt meeting) that the distro > > > comes > > > with a PDFViewer. Is that a correct assumption? > > > > > > I am currently using a VSCode extension for PDFViewing but it does > > > not > > > work very reliably. > > just use an external one, normally it will update automatically (on > > windows sumatrapdf is pretty ok, on linux i'd probably use okular > > because mupdf has no real gui) > > I know of two muPDF GUIs: > > - llpp https://github.com/moosotc/llpp > - zathura https://pwmt.org/projects/zathura/ > > Both are fairly minimalistic, but if you only want to display pages > they do the job. Zathura also supports synctex. > > > > > Hans > > > > - > >Hans Hagen | PRAGMA ADE > >Ridderstraat 27 | 8061 GH Hasselt | The Netherlands > > tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl > > - > > ___ > > > > If your question is of interest to others as well, please add an entry > > to the Wiki! > > > > maillist : ntg-context@ntg.nl / > > http://www.ntg.nl/mailman/listinfo/ntg-context > > webpage : http://www.pragma-ade.nl / http://context.aanhet.net > > archive : https://bitbucket.org/phg/context-mirror/commits/ > > wiki : http://contextgarden.net > > ___ > > > > > > ___ > If your question is of interest to others as well, please add an entry to > the Wiki! > > maillist : ntg-context@ntg.nl / > http://www.ntg.nl/mailman/listinfo/ntg-context > webpage : http://www.pragma-ade.nl / http://context.aanhet.net > archive : https://bitbucket.org/phg/context-mirror/commits/ > wiki : http://contextgarden.net > > ___ > ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___
