[NTG-context] transparent color
I would like to use a transparent version of an existing color. Thus \definecolor[transparentcolor][color,t=0.2,a=1] instead of \definecolor[transparentcolor][r=..,g=..,b=..,t=0.2,a=1] because I do not know the rgb values of the color that must be made transparent, only its name. How to accomplish? yours sincerely dr. Hans van der Meer ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl webpage : https://www.pragma-ade.nl / https://context.aanhet.net (mirror) archive : https://github.com/contextgarden/context wiki : https://wiki.contextgarden.net ___
[NTG-context] Re: Comments placed in the margin
I am using: \margindata[]{group to isolate change e.g. {\rm \it etc}}
yours sincerely
dr. Hans van der Meer
> On 19 Mar 2024, at 15:38, Jeroen wrote:
>
> 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?
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[NTG-context] behaviour sy in externalfigure
The scaling in \externalfigure[][] with option sy=number seems to have a discrete change in behaviour between sy=1.0 and sy=(not 1.0).The MWE (see below, FIGURE REMOVED BECAUSE OTHERWISE MESSAGE TOO LARGE) shows that factor sy≠1.0 is applied to the original height of the figure, but for sy=1.0 the height is changed proportional to the reduction in width.Thus the series sy=0.999 sy=1.0 sy=1.001 has a discontinuity in the scaling of height.I would expect sy=1.0 to return the figure in the original height.Is this behaviour on purpose? With the current behaviour I must provide for sy=1.0 => sy=1.001 in order to get the original height. Although not to difficult with a jump to Lua code, I would prefer not.yours sincerelydr. Hans van der Meer\starttext\ConTeXt\space version \contextversion\blank\type{\externalfigure[testfile.jpg]} source figure\crlf\externalfigure[testfile.jpg]\crlf\type{\externalfigure[testfile.jpg][width=5cm]}\crlf\externalfigure[testfile.jpg][width=5cm]\crlfExplanation: height scaled proportional to the width reduction.\blank\type{\externalfigure[testfile.jpg][width=5cm,sy=0.999]}\crlf\externalfigure[testfile.jpg][width=5cm,sy=1.001]\crlfExplanation: sy different from 1.0 applies sy to original height.\blank\type{\externalfigure[testfile.jpg][width=5cm,sy=1.0]}\crlf\externalfigure[testfile.jpg][width=5cm,sy=1.0]\crlfExplanation: sy=1.0 exactly is ignored?\blank\type{\externalfigure[testfile.jpg][width=5cm,sy=1.001]}\crlf\externalfigure[testfile.jpg][width=5cm,sy=1.001]\crlfExplanation: sy different from 1.0 applies sy to original height.\blank\stoptext
testsyscaling.pdf
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[NTG-context] Re: hyphenation question
Yes, that is a possibilty that did not escape me. But this is but an example. In those documents such abbreviations are quite common and frequent. I hoped therefore to find a generic solution! yours sincerely dr. Hans van der Meer > On 2 Feb 2024, at 18:25, Hans Hagen via ntg-context > wrote: > > On 2/2/2024 1:03 PM, Hans van der Meer via ntg-context wrote: >> In the 18th century documents I am transcribing often words are abbreviated >> as for example /voorschreeve/ becoming /voors:/ In the transcription it is >> usual to write this as /voors[chreeve]/ indicating to the reader how the >> abbreviation was interpreted. >> The problem then arises with hyphenation, because /voors[chreeve]/ in the >> example will not be hyphenated as if the []'s were absent. Which is what I >> would like to happen. >> Question: is it possible to realize this and how? > Like this? > > \starttext > > \startexceptions >voor-s[chree-ve] > \stopexceptions > > \hsize1mm > voors[chreeve] > > \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 > - > > ___ > If your question is of interest to others as well, please add an entry to the > Wiki! > > maillist : ntg-context@ntg.nl / > https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl > webpage : https://www.pragma-ade.nl / https://context.aanhet.net (mirror) > archive : https://github.com/contextgarden/context > wiki : https://wiki.contextgarden.net > ___ ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl webpage : https://www.pragma-ade.nl / https://context.aanhet.net (mirror) archive : https://github.com/contextgarden/context wiki : https://wiki.contextgarden.net ___
[NTG-context] hyphenation question
In the 18th century documents I am transcribing often words are abbreviated as for example voorschreeve becoming voors: In the transcription it is usual to write this as voors[chreeve] indicating to the reader how the abbreviation was interpreted. The problem then arises with hyphenation, because voors[chreeve] in the example will not be hyphenated as if the []'s were absent. Which is what I would like to happen. Question: is it possible to realize this and how? yours sincerely dr. Hans van der Meer ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl webpage : https://www.pragma-ade.nl / https://context.aanhet.net (mirror) archive : https://github.com/contextgarden/context wiki : https://wiki.contextgarden.net ___
[NTG-context] Re: upload
Just did 'sh install.sh' a moment ago without problems. In the past I had to do xattr -d com.apple.quarantaine path-to-executable once but not anymore. I think the xattr resides in the Apple command tools. Are you sure you have them? yours sincerely dr. Hans van der Meer > On 23 Jan 2024, at 17:29, Otared Kavian wrote: > > Hi Hans, > > I tried to update to your latest version (for MacOS Arm1) with the command > sh install.sh > but obtained the following message and no update: > > xattr: bin/mtxrun: No such xattr: com.apple.quarantine > install.sh: line 110: 62611 Killed: 9 $PWD/bin/mtxrun --script > ./bin/mtx-install.lua --update --server="$LMTXSERVER" > --instance="$LMTXINSTANCE" --platform="$PLATFORM" --erase > --extras="$LMTXEXTRAS" $@ > > > Since I have a working (and backed up…) version 2024-01-18, there is no > absolute necessity for me to update right now, but I wanted just to inform > you about the issue I encountered. I wonder whether other MacOS users have > had such a problem. > > Best regards: Otared > >> On 23 Jan 2024, at 10:09, Hans Hagen via ntg-context >> wrote: >> >> On 1/20/2024 10:32 AM, Ursula Hermann wrote: >>> 32 bits Windows download does not work, because 404 report. >> >> i uploaded a win32 installer (for now we only keep 32 bit win but once all >> users are on 64 bit ...) >> >> the current upload is as usual work in progress >> >> Hans >> >> - >> Hans Hagen | PRAGMA ADE >> Ridderstraat 27 | 8061 GH Hasselt | The Netherlands >> tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl >> - >> >> ___ >> If your question is of interest to others as well, please add an entry to >> the Wiki! >> >> maillist : ntg-context@ntg.nl / >> https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl >> webpage : https://www.pragma-ade.nl / https://context.aanhet.net (mirror) >> archive : https://github.com/contextgarden/context >> wiki : https://wiki.contextgarden.net >> ___ > > Otared Kavian > e-mail: ota...@gmail.com > Phone: +33 6 88 26 70 95 > > > > > ___ > If your question is of interest to others as well, please add an entry to the > Wiki! > > maillist : ntg-context@ntg.nl / > https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl > webpage : https://www.pragma-ade.nl / https://context.aanhet.net (mirror) > archive : https://github.com/contextgarden/context > wiki : https://wiki.contextgarden.net > ___ ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl webpage : https://www.pragma-ade.nl / https://context.aanhet.net (mirror) archive : https://github.com/contextgarden/context wiki : https://wiki.contextgarden.net ___
[NTG-context] Re: externalfigure crashed
Here too, I find 'undefined' from \meaning\expandeddetokenize yours sincerely dr. Hans van der Meer > On 22 Nov 2023, at 21:55, Aditya Mahajan wrote: > > On Wed, 22 Nov 2023, Wolfgang Schuster wrote: > >> Hans van der Meer schrieb am 22.11.2023 um 21:22: >>> The problem persists. Here the new logfile. >> >> 1. What is the version of your Luametatex binary? >> >> luametatex --version >> This is LuaMetaTeX, Version 2.10.11 > > For me, it is the same: > > This is LuaMetaTeX, Version 2.10.11 > >> >> 2. What do you get in your log-file with the following example! >> >> \starttext >> \show\expandeddetokenize >> \stoptext >> >> On my system I can find the following line: >> >> > \expandeddetokenize=primitive \expandeddetokenize > > \expandeddetokenize=undefined > > Not sure why this is the case! > > Aditya___ > If your question is of interest to others as well, please add an entry to the > Wiki! > > maillist : ntg-context@ntg.nl / > https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl > webpage : https://www.pragma-ade.nl / https://context.aanhet.net (mirror) > archive : https://github.com/contextgarden/context > wiki : https://wiki.contextgarden.net > ___ ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl webpage : https://www.pragma-ade.nl / https://context.aanhet.net (mirror) archive : https://github.com/contextgarden/context wiki : https://wiki.contextgarden.net ___
[NTG-context] externalfigure crashed
When \externalfigure could not find the file it used to graciously place a rectangle kindly telling the user that the file has not been found.But now, however, it seems the default in this case is a crash. Very annoying in comparison with the earlier behaviour.I might make a mistake, but the MWE is as simple as can be.The filename is test.jpeg, then this runs ok:\starttext\externalfigure[test.jpeg][]\stoptextBut this crashes, see the log:\starttext\externalfigure[test.jpg][]\stoptext yours sincerelydr. Hans van der Meer showlayout.log Description: Binary data ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl webpage : https://www.pragma-ade.nl / https://context.aanhet.net (mirror) archive : https://github.com/contextgarden/context wiki : https://wiki.contextgarden.net ___
[NTG-context] Re: marginwidths
But changing the width of the section in the middle is not changing. Adapt \textwidth narrows the textwidth but does not allow wider margins.see next example. So how to adapt the page to for example:[leftmargin 40mm][middle what is left][rightmargin 60mm] this should leave 210-40-60=110mm in the middle, but doesn't.The textwidth is narrowed but the margins refuse to obey their setting. yours sincerelydr. Hans van der Meer\setuppapersize[A4][A4]\setuplayout[leftmargin=40mm,rightmargin=60mm,textwidth=110mm]\showframe\starttextsetuplayout: leftmargin=40mm, rightmargin=60mm, textwidth=110mm\crlfabc\dotfill xyz\crlf\stoptext showlayout.pdf Description: Adobe PDF document On 22 Nov 2023, at 14:46, Marco Patzer wrote:On Wed, 22 Nov 2023 14:17:29 +0100Hans van der Meer via ntg-context wrote:I would like to change the width of the margins on the page.In the MWE here, the pagelayout does not seem to obey the\setuplayout command. Why are the margins shown uneffected by\setuplayout?Works as expected here. The margins have changed and \showlayoutgives you: \leftmarginwidth = 6cm \rightmarginwidth = 10cmChange the example to: \setuplayout [leftmargin=6mm, %% mm, not cm rightmargin=10mm]That way you better see the effect on the page.Marco___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl webpage : https://www.pragma-ade.nl / https://context.aanhet.net (mirror) archive : https://github.com/contextgarden/context wiki : https://wiki.contextgarden.net ___
[NTG-context] marginwidths
I would like to change the width of the margins on the page.In the MWE here, the pagelayout does not seem to obey the \setuplayout command. Why are the margins shown uneffected by \setuplayout? yours sincerelydr. Hans van der Meer showlayout.pdf Description: Adobe PDF document showlayout.tex Description: Binary data ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl webpage : https://www.pragma-ade.nl / https://context.aanhet.net (mirror) archive : https://github.com/contextgarden/context wiki : https://wiki.contextgarden.net ___
[NTG-context] unwanted blank page
I should have a first page without pagenumber and pagenumbers on the subsequent ones.However the MWE here introduces an unwanted blank page from the call to \setuppagenumbering[state=start].And the \setuppagenumbering has to come after the \page, of course.Should I program otherwise? yours sincerelydr. Hans van der Meer % test pagenumbering start-stop\setuppapersize[A5][A5]\starttext\setuppagenumbering[state=stop]\ConTeXt\space\contextversion\blankThis is page 1 without pagenumber.\crlf\page\setuppagenumbering[state=start]This should be a page with pagenumber 2.\crlfBut the pagenumber is 3 instead after blank page 2.\stoptext extrapage.pdf Description: Adobe PDF document ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl webpage : https://www.pragma-ade.nl / https://context.aanhet.net (mirror) archive : https://github.com/contextgarden/context wiki : https://wiki.contextgarden.net ___
[NTG-context] placing \externalfigure
In placing \externalfigure[file] I observe the figure is placed with its bottom on the baseline, thus: [externalfigure] --- baseline I looked into the option list of setupexternalfigure but could not find one whereby the location with respect to the baseline is either top, bottom or center. Such an option might not exist and then I must program around it. But I prefer to use something that is already there and fits my needs. yours sincerely dr. Hans van der Meer ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl webpage : https://www.pragma-ade.nl / https://context.aanhet.net (mirror) archive : https://github.com/contextgarden/context wiki : https://wiki.contextgarden.net ___
[NTG-context] \xmlinclusion?
I cannot get \xmlinclusion working. Below an MWE with its output. What I am missing here or is \xmlinclusion not ok?\startxmlsetups demo \xmlsetsetup{#1}{ root|test }{demo:*}\stopxmlsetups\xmlregisterdocumentsetup{demo}{demo}\startxmlsetups demo:root \blank{\bf Start test}\crlf \string\xmlinclusion\{\#1\} ===> "\xmlinclusion{#1}"\crlf \xmlflush{#1}\crlf {\bf End test}\blank\stopxmlsetups\startxmlsetups demo:test \xmlflush{#1}\stopxmlsetups\starttext\currentdate-\currenttime\quad\ConTeXt-version=\contextversion\blankThe following text is on page 52 of xml-mkiv.pdf:\crlf\type{\xmlinclusion{...}}\crlfreturns the file where the node comes from\blankFollows the test of this claim:\xmlprocessfile{demo}{demo.xml}{}\blank\typefile{demo.xml}\stoptext node TEST
xml-inclusion.pdf
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met vriendelijke groet,dr. Hans van der MeerBurgemeester Rijnderslaan 244 ingang D1185 MC Amstelveentel. 020 6452701 / 06 53743629
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[NTG-context] Re: Testing whether an XML attribute exists
But there is also
\ifxmlattempty{#1}{prefix} .. \else .. \fi
yours sincerely
dr. Hans van der Meer
> On 17 Oct 2023, at 13:37, Taco Hoekwater wrote:
>
>
>
>> On 17 Oct 2023, at 12:43, Michael Guravage
>> wrote:
>>
>> Hi,
>>
>> I am typesetting a very simple address list whose source is written in XML.
>> Typesetting choices need to be made dependent on the presence of various
>> attributes; consider the following element.
>>
>>
>>
>> If the prefix attribute exists I'l like the name to appear as, e.g. 'Boer,
>> den." The several XML attribute testing functions in the XML manual appear
>> to discriminate on an attribute's value. I tried \xmldoifnotatt in an
>> attempt to say, "TRUE if prefix does not match an empty string", since I am
>> not interested in the attribute's value but only whether or not it exists.
>> The code below doesn't work. If someone who knows why it doesn't work would
>> enlighten my ignorance I would be most grateful. A brief explanation and
>> example of \xmldoifatt, \xmldoifnotatt, and \xmldoifelseatt would be
>> exceedingly helpful.
>>
>> \startxmlsetups xml:list:family
>> {\bf \xmlatt{#1}{surname} \xmldoifnotatt{#1, prefix, ''} {,
>> \xmlatt{#1}{prefix}}} \crlf
>
>
> Syntax error there, you need:
>
> \xmldoifnotatt{#1}{prefix}{}{, \xmlatt{#1}{prefix}}
>
> Best wishes,
> Taco
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[NTG-context] Re: Offline documentations
I find offline documentation in the installed ConteXt files in ConTeXt/tex/texmf-context/doc/context/documents/general/manuals with more in neighboring directories. Hope this helps. met vriendelijke groet, dr. Hans van der Meer Burgemeester Rijnderslaan 244 ingang D 1185 MC Amstelveen tel. 020 6452701 / 06 53743629 > On 2 Oct 2023, at 10:55, Henning Hraban Ramm wrote: > > > __ ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context webpage : https://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : https://contextgarden.net ___
[NTG-context] rotation weirdness
I encountered something weird, that I cannot explain. It could be an error, but I was not able to pinpoint this.It seems as if the \rotate macro plays havoc with the macro definitions used to set the color of the frame and an outside title.Placing the outside title before the rotate proves that the call to \rotate is the culprit.I enclose an MWE with a little jpeg figure as illustration.
yours sincerelydr. Hans van der Meer\def\formattitle#1{\color[\boxtitlecolor]{#1\strut}}\def\boxfigurerotate#1#2{% \rotate[rotation=10]% {% \externalfigure[#1]% [rulethickness=4pt,width=100pt,height=50pt,frame=on,framecolor=\boxframecolor,]% }% \formattitle{#2}%}\def\boxfigure#1#2{% \externalfigure[#1]% [rulethickness=4pt,width=100pt,height=50pt,frame=on,framecolor=\boxframecolor,]% \formattitle{#2}%}\def\boxtitlecolor{blue}\def\boxframecolor{blue}\starttext\ConTeXt\ \contextversion\blankProblem:\crlfit looks like \type{\rotate[]{}} kills the definition of boxtitlecolor.Changing the names of the titlecolor/framecolor definitions makes no difference.\crlfWhy is this? ConTeXt error?\blank\boxfigure{test}{norotation: title color is blue}\blank\boxfigurerotate{test}{rotation: title color should be blue but is not}\blank\def\boxframecolor{red}\boxfigurerotate{test}{rotation: title color different from framecolor now blue}\stoptext
rotatecolor.pdf
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[NTG-context] Re: ifxmlselfempty
I changed this in the source of lxml-ini.lua (line 225). It seems the 'not' has been accidentally crept in (from copying that line in ifxmlempty, the item above?)Anyway, remade the format and now the result is as I expected it to be. See below in the output of the MWE from my first post on this subject. I added the relevant portion of the code for clarity.I am sure the next update will reflect it in the source ;-)dr. Hans van der Meer implement { name = "ifxmlselfempty", public = true, usage = "condition", arguments = "argument", actions = function(id)-- return boolean_code, not checkedempty(getid(id)) and true return boolean_code, checkedempty(getid(id)) and true end }
xmlsetup-template.pdf
Description: Adobe PDF document
On 4 Sep 2023, at 10:05, denis.ma...@unibe.ch wrote:IDK. But why do have a setup for , which does not appear in your xml source (shouldn’t it be ?)? Von: Hans van der Meer via ntg-context <ntg-context@ntg.nl> Gesendet: Sonntag, 3. September 2023 14:11An: NTG ConTeXt <ntg-context@ntg.nl>Cc: Hans van der Meer <havdm...@ziggo.nl>Betreff: [NTG-context] ifxmlselfempty Is it possible that the new \ifxmlselfempty has reversed its outcome? Or did I something wrong in this MWE?Here an MWE. yours sincerelydr. Hans van der Meer \startbuffer[test]!not empty node!\stopbuffer \startxmlsetups xml:mysetups \xmlsetsetup{\xmldocument}{something|emptynode|notemptynode}{xml:*}\stopxmlsetups \xmlregistersetup{xml:mysetups} \startxmlsetups xml:emptynodenode=\xmltag{#1}:\crlfifxmlselfempty-else-fi:\space\ifxmlselfempty{#1}attribute = \xmlatt{#1}{value}\elsecontent = \xmlflush{#1}\fi\crlfifxmlselfempty-else-fi reversed:\space\ifxmlselfempty{#1}content = \xmlflush{#1}\elseattribute = \xmlatt{#1}{value}\fi\blank\stopxmlsetups \startxmlsetups xml:notemptynodenode=\xmltag{#1}:\crlfifxmlselfempty-else-fi:\space\ifxmlselfempty{#1}attribute = \xmlatt{#1}{value}\elsecontent = \xmlflush{#1}\fi\crlfifxmlselfempty-else-fi reversed:\space\ifxmlselfempty{#1}content = \xmlflush{#1}\elseattribute = \xmlatt{#1}{value}\fi\blank\stopxmlsetups \startxmlsetups xml:something\xmlall{#1}{./emptynode}\blank\xmlall{#1}{./notemptynode}\blank\stopxmlsetups \starttext\ConTeXt\ \contextversion\blank \xmlprocessbuffer{main}{test}{}\stoptext___
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[NTG-context] ifxmlselfempty
Is it possible that the new \ifxmlselfempty has reversed its outcome? Or did I something wrong in this MWE?Here an MWE.
yours sincerelydr. Hans van der Meer
xmlsetup-template.pdf
Description: Adobe PDF document
\startbuffer[test]!not empty node!\stopbuffer\startxmlsetups xml:mysetups \xmlsetsetup{\xmldocument}{something|emptynode|notemptynode}{xml:*}\stopxmlsetups\xmlregistersetup{xml:mysetups}\startxmlsetups xml:emptynodenode=\xmltag{#1}:\crlfifxmlselfempty-else-fi:\space\ifxmlselfempty{#1} attribute = \xmlatt{#1}{value}\else content = \xmlflush{#1}\fi\crlfifxmlselfempty-else-fi reversed:\space\ifxmlselfempty{#1} content = \xmlflush{#1}\else attribute = \xmlatt{#1}{value}\fi\blank\stopxmlsetups\startxmlsetups xml:notemptynodenode=\xmltag{#1}:\crlfifxmlselfempty-else-fi:\space\ifxmlselfempty{#1} attribute = \xmlatt{#1}{value}\else content = \xmlflush{#1}\fi\crlfifxmlselfempty-else-fi reversed:\space\ifxmlselfempty{#1} content = \xmlflush{#1}\else attribute = \xmlatt{#1}{value}\fi\blank\stopxmlsetups\startxmlsetups xml:something\xmlall{#1}{./emptynode}\blank\xmlall{#1}{./notemptynode}\blank\stopxmlsetups\starttext\ConTeXt\ \contextversion\blank \xmlprocessbuffer{main}{test}{}\stoptext___
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[NTG-context] Re: attribute selection
Finally I saw the problem. Calling
\xmlfilter{#1}{./node/command(demo:attribute:node)} is the right way.
Sorry for the noise.
dr. Hans van der Meer
> On 30 Aug 2023, at 13:49, Hans van der Meer via ntg-context
> wrote:
>
> This line of code comes from the xml documentation (page 31):
> \xmlfilter{#1}{./node[@type=="cleanup"]}
> It should select among the 's those with .
> However, this node is not selected in the call to \xmlfilter.
> Where am I wrong?
>
> MWE follows
>
>
> % failure to typeset attribute selected.
> \setuppapersize[A5][A5]
> \startxmlsetups demo:attribute
> \xmlsetsetup{#1}{root|node}{demo:attribute:*}
> \stopxmlsetups
> \xmlregisterdocumentsetup{demo}{demo:attribute}
> \startxmlsetups demo:attribute:root
> Execute \type{\xmlall{#1}{./node}}
> \crlf
> \xmlall{#1}{./node}
> \crlf
> Execute \type{\xmlfilter{#1}{./node[@type=="cleanup"]}}
> \xmlfilter{#1}{./node[@type=="cleanup"]}
> \crlf
> \stopxmlsetups
> \startxmlsetups demo:attribute:node
> calling node <\xmltag{#1}>
> \xmlflush{#1}
> \crlf
> \stopxmlsetups
> \startbuffer[attribute]
>
> no attribute
> attribute type = cleanup
>
> \stopbuffer
> \startbuffer[attribute2]
>
> no attribute
> attribute type=cleanup
>
> \stopbuffer
> \starttext
> \ConTeXt\ version\contextversion\blank
> \xmlprocessbuffer{demo}{attribute}{}
> \stoptext
>
>
>
>
> Hans van der Meer
> ___
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[NTG-context] attribute selection
This line of code comes from the xml documentation (page 31):
\xmlfilter{#1}{./node[@type=="cleanup"]}
It should select among the 's those with .
However, this node is not selected in the call to \xmlfilter.
Where am I wrong?
MWE follows
% failure to typeset attribute selected.
\setuppapersize[A5][A5]
\startxmlsetups demo:attribute
\xmlsetsetup{#1}{root|node}{demo:attribute:*}
\stopxmlsetups
\xmlregisterdocumentsetup{demo}{demo:attribute}
\startxmlsetups demo:attribute:root
Execute \type{\xmlall{#1}{./node}}
\crlf
\xmlall{#1}{./node}
\crlf
Execute \type{\xmlfilter{#1}{./node[@type=="cleanup"]}}
\xmlfilter{#1}{./node[@type=="cleanup"]}
\crlf
\stopxmlsetups
\startxmlsetups demo:attribute:node
calling node <\xmltag{#1}>
\xmlflush{#1}
\crlf
\stopxmlsetups
\startbuffer[attribute]
no attribute
attribute type = cleanup
\stopbuffer
\startbuffer[attribute2]
no attribute
attribute type=cleanup
\stopbuffer
\starttext
\ConTeXt\ version\contextversion\blank
\xmlprocessbuffer{demo}{attribute}{}
\stoptext
xml-tex-attribute-select.pdf
Description: Adobe PDF document
Hans van der Meer
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[NTG-context] Re: ideas for ConTeXt stickers?
Please phrase your reaction differently. This is absolutely not about my sense of humor. But if you have observed the news media these last few years, you may have noticed how sensitive the public opinion has become about "humor" of this kind. I am afraid it could place the Tex community (for which I care) in a less favourable light. yours sincerely dr. Hans van der Meer > On 7 Aug 2023, at 19:57, Henning Hraban Ramm wrote: > > Am 07.08.23 um 19:20 schrieb Hans van der Meer via ntg-context: >> I would say: Don't use this one. This sticker could be interpreted as having >> a sexual connotation and that is not the way (excuse the Mandalorian). > > The sexual connotation is intentional, of course. Apparently not everyone’s > kind of humor. > > Hraban > ___ > If your question is of interest to others as well, please add an entry to the > Wiki! > > maillist : ntg-context@ntg.nl / > https://www.ntg.nl/mailman/listinfo/ntg-context > webpage : https://www.pragma-ade.nl / http://context.aanhet.net > archive : https://bitbucket.org/phg/context-mirror/commits/ > wiki : https://contextgarden.net > ___ ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context webpage : https://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : https://contextgarden.net ___
[NTG-context] Re: ideas for ConTeXt stickers?
I would say: Don't use this one. This sticker could be interpreted as having a sexual connotation and that is not the way (excuse the Mandalorian). yours sincerelydr. Hans van der Meer On 7 Aug 2023, at 19:13, Henning Hraban Ramm wrote:Hi,while it’s too late for this year’s conferences, I’d like to have some nice ConTeXt, MetaPost or general TeX stickers for next year’s.Do you have ideas?Find attached an example by Moss.Hraban___If your question is of interest to others as well, please add an entry to the Wiki!maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-contextwebpage : https://www.pragma-ade.nl / http://context.aanhet.netarchive : https://bitbucket.org/phg/context-mirror/commits/wiki : https://contextgarden.net___ TeXies do it in groups-pink-on-black.pdf-flat-no-ICC.pdf Description: Adobe PDF document ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context webpage : https://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : https://contextgarden.net ___
[NTG-context] Re: Replacing %20 with spaces in xml attributes
Here in Terminal on my Mac:
21 ~: lua
Lua 5.4.6 Copyright (C) 1994-2023 Lua.org, PUC-Rio
> string.gsub('a%20b', '%%20', ' ')
a b 1
> (string.gsub('a%20b', '%%20', ' '))
a b
> ^D
21 ~:
The first call returns the 1 giving the match, the extra ()'s get rid of that
second return value.
yours sincerely
dr. Hans van der Meer
> On 21 Jul 2023, at 12:37, denis.ma...@unibe.ch wrote:
>
> Hi,
>
> I’m typesetting an XML document where the links to the images contain spaces
> which are encoded as %20
>
>
> Using this works in cases without spaces:
>
> \startxmlsetups xml:fig:graphic
> \externalfigure[\xmlatt{#1}{xlink:href}]
> \stopxmlsetups
>
> This also works for normal spaces, but is there a way to decode/expand the
> %20s to regular spaces?
>
> I’ve tried with some Lua, but I don’t really know how to pass data around.
>
> %
> \startluacode
> function replaceSpaces(s)
> result = string.gsub(s, "%%20", " ")
> context(result)
> end
> \stopluacode
>
> \define[1]\replaceSpaces{\ctxlua{replaceSpaces("#1")}}
>
> \startxmlsetups xml:fig:graphic
> \externalfigure[\replaceSpaces{\xmlatt{#1}{xlink:href}}]
> \stopxmlsetups
> %
>
> Any hints, why this does not work?`
>
> Also, maybe there’s a simpler way for this kind of scenario?
>
> Best,
> Denis
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[NTG-context] Re: \hidewidth disappeared
> \hidewidth is a plain tex thing that is unlikely to work well with other code With all respect, I do not understand why it can cause problems and "is unlikely to work well". It is no surprise that in TeX you can cause havoc by using things unwisely or in the wrong place (and I have enough experience with this;-). By using things the burden to use them well falls onto the programmer, of course. Given \hidewidth's body is \hskip\hideskip: \hskip I would sorely miss and \hideskip is nothing more than a register set by Knuth to -1000pt plus1fill. I am open for further enlightment and not too old to learn. yours sincerely dr. Hans van der Meer > On 16 Jul 2023, at 14:08, Hans Hagen via ntg-context > wrote: > > On 7/16/2023 1:31 PM, Hans van der Meer via ntg-context wrote: >> What happened to \hidewidth? It looks as if it disappeared. See the >> accompanying MWE. >> However, searching the ConTeXt source I find it used in enco-ini.mkiv, >> defined in syst-ini.mkiv, but commented out in syst-ini.mkxl. >> Why is that? It seems a harmless definition, and its body is even used twice >> in enco-ini.mkxl. >> I dare say, with all due respect, it is not pleasant (and a waste of time) >> to find working code suddenly broken because of leftout macro's. And I feel >> lucky to not having used \ialign, because something similar happened to it. > \hidewidth is a plain tex thing that is unlikely to work well with other code > > \ialign is also something plain and as it sets everycr as well as tabskip and > also can interfere > > you can define these macros yourself and hope for the best wrt interference > but i'm not going to look into such interferences > > Hans > > - > Hans Hagen | PRAGMA ADE > Ridderstraat 27 | 8061 GH Hasselt | The Netherlands > tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl > - > > ___ > If your question is of interest to others as well, please add an entry to the > Wiki! > > maillist : ntg-context@ntg.nl / > https://www.ntg.nl/mailman/listinfo/ntg-context > webpage : https://www.pragma-ade.nl / http://context.aanhet.net > archive : https://bitbucket.org/phg/context-mirror/commits/ > wiki : https://contextgarden.net > ___ ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context webpage : https://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : https://contextgarden.net ___
[NTG-context] \hidewidth disappeared
What happened to \hidewidth? It looks as if it disappeared. See the accompanying MWE.However, searching the ConTeXt source I find it used in enco-ini.mkiv, defined in syst-ini.mkiv, but commented out in syst-ini.mkxl.Why is that? It seems a harmless definition, and its body is even used twice in enco-ini.mkxl.I dare say, with all due respect, it is not pleasant (and a waste of time) to find working code suddenly broken because of leftout macro's. And I feel lucky to not having used \ialign, because something similar happened to it. yours sincerelydr. Hans van der Meer hidewidth.pdf Description: Adobe PDF document ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context webpage : https://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : https://contextgarden.net ___
[NTG-context] depth of framed
I cannot get rid of some depth in framed. Used various combinations of the depth and backgrounddepth setting, nothing helps.What am I doing wrong? Or is something in \framed not working in the way I expected?See the accompanying MWE. yours sincerelydr. Hans van der Meer framedepth.pdf Description: Adobe PDF document ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context webpage : https://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : https://contextgarden.net ___
[NTG-context] how to install on M2 Mac?
After transferring the context directory to my new M2 Mac Studio sh.install.sh complains "Your system "Darwin arm64" is not supported (yet)". What now? I cannot live without TeX-ing 沈 yours sincerely dr. Hans van der Meer ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context webpage : https://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : https://contextgarden.net ___
Re: [NTG-context] right and left arrowfill
\starttext x \rightarrowfill x x \leftarrowfill xhbox to 5cm: y\hbox to5cm{\rightarrowfill}y y\hbox to5cm{\leftarrowfill}y\stoptextBut obviously not in an dimensioned \hbox, whereas Knuth's version does that too.
On 22 Jun 2023, at 15:11, Hans Hagen via ntg-context wrote: x \rightarrowfill x x \leftarrowfill xyours sincerelydr. Hans van der Meer
hboxarrowfill.pdf
Description: Adobe PDF document
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[NTG-context] right and left arrowfill
A few days ago I drew attention to the fact that \rightarrowfill and \leftarrowfill are broken in the latest ConTeXt. Imho that should not happen with basic TeX macro's.Although one can recreate their definitions from the TeX-book (see the MWE attached), I still do not understand why it should be needed. yours sincerelydr. Hans van der Meer hboxarrowfill.tex Description: Binary data hboxarrowfill.pdf Description: Adobe PDF document ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context webpage : https://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : https://contextgarden.net ___
[NTG-context] right/left-arrowfill not seen
Why do the \rightarrowfill and \leftarrowfill not show up in the accompanying MWE? yours sincerelydr. Hans van der Meer hboxfill.pdf Description: Adobe PDF document hboxfill.tex Description: Binary data hboxfill.log Description: Binary data ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context webpage : https://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : https://contextgarden.net ___
Re: [NTG-context] letfrozen?
Of course. But without that \enabledirective I can redefine the frozen macro at
will, as a simple test did show.
The crux, however, is that one wants to protect the frozen code always,
irrespective of that directive setting.
dr. Hans van der Meer
> On 12 Jun 2023, at 19:47, Hans Hagen via ntg-context
> wrote:
>
> On 6/12/2023 12:32 PM, Hans van der Meer via ntg-context wrote:
>>> On 12 Jun 2023, at 11:12, Hans Hagen via ntg-context
>>> wrote:
>>>
>>> On 6/12/2023 10:57 AM, Hans van der Meer via ntg-context wrote:
>>>> The manual LMTX-primitives on page 21 tells me:
>>>>You can explicitly freeze an unfrozen macro.
>>>>...
>>>>A redefinition will now give: You can't redefine a frozen macro.
>>>> But is this true? The following code seems to contradict this:
>>>> \def\HOME{myhome}
>>>> \writestatus{1}{\meaning\HOME}
>>>> \letfrozen\HOME
>>>> \writestatus{2}{\meaning\HOME}
>>>> \def\HOME{other home}
>>>> \writestatus{3}{\meaning\HOME}
>>>> 
>>>> Is this mechanism broken? It looks so useful to prevent accidental
>>>> redefinition!
>>>
>>> here i run with
>>>
>>> \enabledirectives[overloadmode=error]
>>>
>>> (you can do that in cont-sys.mkxl)
>>>
>>> \enabledirectives[overloadmode=warning]
>>> Hans
>>>
>> Pity. Now I get on loading the tex file:
>> "csname overload > fatal error, protection level 4, control sequence 'nbsp',
>> properties 'immutable', file 't-hvdm-text.tex', line 63
>> while I had hoped that frozen would give me something like:
>> illegal attempt to redefine \HOME
>> Byproduct (not unwanted) the above illegal redefinition to be solved :-)
>> May I ask why obviously the frozen-mechanism seems (yet?) unimplemented?
> It's okay and has been around for quite a while now.
>
> \enabledirectives[overloadmode=error]
>
> \starttext
>
>\frozen\def\HOME{}
>
>\def\HOME{!}
>
> \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
> -
>
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[NTG-context] xml nbsp?
What happened to the non breaking space in XML? It has disappeared in a way. See the minimal example attached.dr. Hans van der Meer test-nbsp.pdf Description: Adobe PDF document ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context webpage : https://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : https://contextgarden.net ___
Re: [NTG-context] letfrozen?
> On 12 Jun 2023, at 11:12, Hans Hagen via ntg-context
> wrote:
>
> On 6/12/2023 10:57 AM, Hans van der Meer via ntg-context wrote:
>> The manual LMTX-primitives on page 21 tells me:
>> You can explicitly freeze an unfrozen macro.
>> ...
>> A redefinition will now give: You can't redefine a frozen macro.
>> But is this true? The following code seems to contradict this:
>> \def\HOME{myhome}
>> \writestatus{1}{\meaning\HOME}
>> \letfrozen\HOME
>> \writestatus{2}{\meaning\HOME}
>> \def\HOME{other home}
>> \writestatus{3}{\meaning\HOME}
>> 
>> Is this mechanism broken? It looks so useful to prevent accidental
>> redefinition!
>
> here i run with
>
> \enabledirectives[overloadmode=error]
>
> (you can do that in cont-sys.mkxl)
>
> \enabledirectives[overloadmode=warning]
> Hans
>
Pity. Now I get on loading the tex file:
"csname overload > fatal error, protection level 4, control sequence 'nbsp',
properties 'immutable', file 't-hvdm-text.tex', line 63
while I had hoped that frozen would give me something like:
illegal attempt to redefine \HOME
Byproduct (not unwanted) the above illegal redefinition to be solved :-)
May I ask why obviously the frozen-mechanism seems (yet?) unimplemented?
dr. Hans van der Meer
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[NTG-context] letfrozen?
The manual LMTX-primitives on page 21 tells me:
You can explicitly freeze an unfrozen macro.
...
A redefinition will now give: You can't redefine a frozen macro.
But is this true? The following code seems to contradict this:
\def\HOME{myhome}
\writestatus{1}{\meaning\HOME}
\letfrozen\HOME
\writestatus{2}{\meaning\HOME}
\def\HOME{other home}
\writestatus{3}{\meaning\HOME}

Is this mechanism broken? It looks so useful to prevent accidental redefinition!
dr. Hans van der Meer
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Re: [NTG-context] font style and size interaction
Hans, I see this as a no with respect to changing the behaviour of \small and friends. Which I can well understand: changes on this level may trigger a lot of unwanted problems. But now I can program around it with a clear conscience;-) dr. Hans van der Meer > On 30 May 2023, at 11:33, Hans Hagen via ntg-context > wrote: > > On 5/30/2023 10:18 AM, Hans van der Meer via ntg-context wrote: >> There is -- in my perception -- a problem with the interaction between font >> style and font size changes. >> The order of calling for example \it\small matters because \small\it leads >> to a different result. >> I would however reason that size and style changes should be in orthogonal >> spaces, that is: the one should have no effect on the other. >> Cause of this behaviour seems the \tf call included in small. See the >> accompanying example. >> I can try to program around this, but I would prefer not to. Is there a >> possibility that this behaviour will be changed to \it\small and \small\it >> giving the same result? > \small does a (massive) bodyfont switch and therefore you end up with regular > tf > > > - > Hans Hagen | PRAGMA ADE > Ridderstraat 27 | 8061 GH Hasselt | The Netherlands > tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl > - > > ___ > If your question is of interest to others as well, please add an entry to the > Wiki! > > maillist : ntg-context@ntg.nl / > https://www.ntg.nl/mailman/listinfo/ntg-context > webpage : https://www.pragma-ade.nl / http://context.aanhet.net > archive : https://bitbucket.org/phg/context-mirror/commits/ > wiki : https://contextgarden.net > ___ ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context webpage : https://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : https://contextgarden.net ___
[NTG-context] font style and size interaction
There is -- in my perception -- a problem with the interaction between font style and font size changes. The order of calling for example \it\small matters because \small\it leads to a different result. I would however reason that size and style changes should be in orthogonal spaces, that is: the one should have no effect on the other. Cause of this behaviour seems the \tf call included in small. See the accompanying example. I can try to program around this, but I would prefer not to. Is there a possibility that this behaviour will be changed to \it\small and \small\it giving the same result? dr. Hans van der Meer ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context webpage : https://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : https://contextgarden.net ___
[NTG-context] font size and style
Calling "\bf\tfa TEXT" for example leaves the TEXT not in bold because \tfa
does not respect the current style. As does \small, etc.
Shown by looking at the meaning of for example \small:
\small=protected macro:\triggergroupedcommand {\setsmallbodyfont \tf }
and
\tx=protected macro:\currentxfontsize \plusone \ifmmode \scriptstyle \orelse
\ifconditional \c_font_inherit_scale \font_scale_inherit_x \else
\font_scale_defined_x \fi \al ways\let \tx \txx
Thus in contrast \tx and \txx do respect the current style setting.
My question: It seems most convenient if I could retrieve the current style and
reset that after a size command. I rather would refrain from tinkering with
those. Since there is a \currentxfontsize is there an analogue for the style?
dr. Hans van der Meer
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[NTG-context] position in xmlfilter
I do not understand the behaviour of certain function is xml processing.
My problem is finding the position of the current node, for example with
I would like to see the first resulting in 1 and the second in 2.
The result of some experiments:
return=[\xmlfilter{#1}{../tag()}] returns the parent tag, in this
case [setup] as expected
return=[\xmlfilter{#1}{./tag()}]returns the tag, in this case
[example] as expected
return=[\xmlfilter{#1}{../position()}] returns [] i.e. returns nothing
expecting a number
return=[\xmlfilter{#1}{./position()}] returns [] i.e. returns nothing
expecting a number
return=[\xmlfilter{#1}{../index()}] returns [0] expecting a number larger
than 0
return=[\xmlfilter{#1}{./index()}] returns [0] expecting a number larger
than 0
dr. Hans van der Meer
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Re: [NTG-context] Probably simple: using a variable for \switchtobodyfont size
\def\relationsFontSize{8pt}\starttextHello World!\crlf\switchtobodyfont[\relationsFontSize]Hello, world!\stoptext
Untitled.pdf
Description: Adobe PDF document
dr. Hans van der MeerOn 19 May 2023, at 11:43, Gerben Wierda via ntg-context wrote:I want to use a variable for a font size so I can set it based on language (as some translated texts have widely different sizes)This fails:%===\newdimen\relationsFontSize\relationsFontSize=8pt\starttext\switchtobodyfont[\relationsFontSize]Hello, world!\stoptext%===How can I use a variable to steer \switchtobodyfont size?
Gerben Wierda (LinkedIn, Mastodon)R IT Strategy (main site)Book: Chess and the Art of Enterprise ArchitectureBook: Mastering ArchiMate
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Re: [NTG-context] new module installer and .tar.gz compression
> On 9 May 2023, at 01:19, Hans Hagen via ntg-context > wrote: > > On 5/8/2023 8:55 PM, Henning Hraban Ramm via ntg-context wrote: > >> But either the module scripts should re-pack tgz archives or the installer >> must learn to handle them. > The script now > > -- before installing uninstalls a previous installation > -- can uninstall an installed module > -- can list installed modules > Please don't do this! I fear it will break my habit of keeping older versions that worked for me. As a safeguard against things that are broken and will have to wait when repaired! dr. Hans van der Meer > For the moment I disable a few badly packages zips: > > metaducks, sudoku, aquamints, simpleslides > > as they put files in the root and their own directories and I am not adding a > zip-root remover and additional checkers. > > No upload yet, > > Hans > > > - > Hans Hagen | PRAGMA ADE > Ridderstraat 27 | 8061 GH Hasselt | The Netherlands > tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl > - > > ___ > If your question is of interest to others as well, please add an entry to the > Wiki! > > maillist : ntg-context@ntg.nl / > https://www.ntg.nl/mailman/listinfo/ntg-context > webpage : https://www.pragma-ade.nl / http://context.aanhet.net > archive : https://bitbucket.org/phg/context-mirror/commits/ > wiki : https://contextgarden.net > ___ ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context webpage : https://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : https://contextgarden.net ___
[NTG-context] missing xml call
\xmlatt{}{} has a counterpart \xmlattribute{}{LPATH}{} where one can start the
search for the attribute at LPATH.
for \xmlchainatt{}{} I am missing such a counterpart
\xmlchainattribute{}{LPATH}{} where one can do the same.
The problem now is that \xmlchainatt{#1}{att} always finds attribute att when
it is defined on the node itself.
But consider the case where att="true" exists with the intention to trigger a
search higher up in the call chain for that same attribute att.
Of course \xmlattribute{#1}{..}{att} is not exactly the same as
\xmlchainattribute{#1}{..}{att} would be .
yours sincerely
dr. Hans van der Meer
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Re: [NTG-context] xmlsetentity on the fly?
After some experiments I am now fairly convinced that the entities are
substituted BEFORE the typesettting actually starts. And thus changing the
entity on the fly will have no effect. Is there a flag that can be set in order
to delay the substitution until the actual moment of typesetting that part of
the input? I examined files lxml-ent.lua and lxml-tex.lua but could not find
how to this.
dr. Hans van der Meer
> On 17 Apr 2023, at 18:11, Hans van der Meer via ntg-context
> wrote:
>
> I tried
> \directlua{xml.registerentity("DATE","NEWDATE")}
>
> but neither does effect a change in the entity.
>
> Why is that entry not set in the Lua-table entities? (file xml-ent.lua) has
> as that function:
>
> function xml.registerentity(key,value)
> entities[key] = value
> if trace_entities then
> report_xml("registering entity %a as %a",key,value)
> end
> end
>
>
>> On 17 Apr 2023, at 12:32, Hans van der Meer wrote:
>>
>> I would like to change an entity 'on the fly'. Example
>>
>> \def\DATE{THEDATE}\expanded{\xmlsetentity{DATE}{\DATE}}
>>
>> \startxmlsetups typ:event
>>
>> \def\DATE{NEWDATE}\expanded{\xmlsetentity{DATE}{\DATE}}
>>
>> Using within the .
>>
>> \stopxmlsetups
>>
>> However, using inside an always results in THEDATE and never
>> in NEWDATE.
>>
>> How can I change the value of the entity inside the xmlsetups?
>>
>
> dr. Hans van der Meer
> ___
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Re: [NTG-context] xmlsetentity on the fly?
I tried
\directlua{lxml.registerentity("DATE","NEWDATE")}
and
\directlua{lxml.registerentity("DATE","NEWDATE")}
but neither does effect a change in the entity.
Why is that entry not set in the Lua-table entities? (file xml-ent.lua) has as
that function:
function xml.registerentity(key,value)
entities[key] = value
if trace_entities then
report_xml("registering entity %a as %a",key,value)
end
end
> On 17 Apr 2023, at 12:32, Hans van der Meer wrote:
>
> I would like to change an entity 'on the fly'. Example
>
> \def\DATE{THEDATE}\expanded{\xmlsetentity{DATE}{\DATE}}
>
> \startxmlsetups typ:event
>
> \def\DATE{NEWDATE}\expanded{\xmlsetentity{DATE}{\DATE}}
>
> Using within the .
>
> \stopxmlsetups
>
> However, using inside an always results in THEDATE and never
> in NEWDATE.
>
> How can I change the value of the entity inside the xmlsetups?
>
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Re: [NTG-context] xmlsetentity on the fly?
> Use \xmltexentity Already tried this. But doesn't work. I guess it has more to do with the definition of the entity in the stsrem. met vriendelijke groet, dr. Hans van der Meer Burgemeester Rijnderslaan 244 1185 MC Amstelveen tel. 020 6452701 / 06 53743629 > On 17 Apr 2023, at 13:00, Thomas A. Schmitz via ntg-context > wrote: > > Use \xmltexentity > > Thomas > >> On 17. Apr 2023, at 12:32, Hans van der Meer via ntg-context >> wrote: >> >> I would like to change an entity 'on the fly'. Example > > > ___ > If your question is of interest to others as well, please add an entry to the > Wiki! > > maillist : ntg-context@ntg.nl / > https://www.ntg.nl/mailman/listinfo/ntg-context > webpage : https://www.pragma-ade.nl / http://context.aanhet.net > archive : https://bitbucket.org/phg/context-mirror/commits/ > wiki : https://contextgarden.net > ___ ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context webpage : https://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : https://contextgarden.net ___
[NTG-context] xmlsetentity on the fly?
I would like to change an entity 'on the fly'. Example
\def\DATE{THEDATE}\expanded{\xmlsetentity{DATE}{\DATE}}
\startxmlsetups typ:event
\def\DATE{NEWDATE}\expanded{\xmlsetentity{DATE}{\DATE}}
Using within the .
\stopxmlsetups
However, using inside an always results in THEDATE and never in
NEWDATE.
How can I change the value of the entity inside the xmlsetups?
dr. Hans van der Meer
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[NTG-context] accessing tex.sprint from pure Lua code.
How can ik access the tex library in pure Lua for tex.sprint and token.setmacro? I guess something like require XYZ ? dr. Hans van der Meer ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context webpage : https://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : https://contextgarden.net ___
Re: [NTG-context] SHA calculation
> On 28 Aug 2022, at 19:07, Pablo Rodriguez via ntg-context
> wrote:
>
> On 8/28/22 12:25, Hans van der Meer via ntg-context wrote:
>>
>> With \directlua{context(md5.hex([===[#1]===]))} I can calculate the MD5
>> checksum.
>> I thought there was another call for the calculation of the SHA
>> checksum, but I could not find it in the documentation or on the context
>> garden.
>> Where to look?
>
> Dear dr. van der Meer,
>
> it is my fault since Hans explained this before (to me).
>
You absolutely need not to apologize. The answer of Hans Hagen was quite
sufficient for me and
\def\SHA#1{\directlua{tex.sprint(sha2.hash256([===[#1]===]))}}
was all I needed. I know Hans from ages ago and he knows what I need in cases
like this.
Alas, wikifying is not my thing.
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[NTG-context] SHA calculation
With \directlua{context(md5.hex([===[#1]===]))} I can calculate the MD5
checksum.
I thought there was another call for the calculation of the SHA checksum, but I
could not find it in the documentation or on the context garden.
Where to look?
dr. Hans van der Meer
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Re: [NTG-context] Metafun : save memory content ?
Storing in a memory block in the computers' internal memory would be super, of
course. But I am afraid that is asking a bit too much;-)
dr. Hans van der Meer
> On 18 Jul 2022, at 18:31, Hans Hagen via ntg-context
> wrote:
>
> On 7/18/2022 3:20 PM, Fabrice L via ntg-context wrote:
>> Dear list,
>> I’m doing animations in MetaFun, by simply using \startMPpage (…)
>> \stopMPpage for each frame of the animation. Here is an example:
>> https://youtu.be/yhxUbVQx9Uo (please note you can watch it in HD by
>> adjusting the setting in YouTube).
>> This works usually great, but when the number of objects to draw by page is
>> large, the resulting pdf file could be huge, several gigabytes sometimes.
>> Such huge files are difficult (sometimes impossible) to convert in jpeg
>> files (I’m using Image magick for the conversion), necessary to do a mp4
>> movie.
>> One solution is to do several pdf files, for example one by second; with
>> this option, I can do 60 files of 30 pages, for an animation of 60 seconds
>> (1800 frames for 1 minute). Everything is smoother this way, quicker to
>> convert files. But in order to do so, I have to be able to describe each
>> frame of the animation with the same set of instructions; so the position of
>> an object at time t is described by an equation for example.
>> But this is not always possible. If the animation is based on a random
>> process, the position of an object at time t depends on his position at time
>> t-1. I can still use this preceeding strategy by simulating the past at the
>> begging of each second, starting with a unique random seed. So for example
>> if I work on second 9, I begin by calculating the past from frame 1 to frame
>> 240 (8*30) and then simulate time 241, draw frame 241, simulate time 242,
>> draw time 242, etc.. This could be complicated to do, but is feasible. The
>> drawback is that more I advance in time, the more computations I have to do
>> at the beginning of each file.
>> So to simplify things, one option would be to be save the state of some
>> variables at some point in time, say t, in order to be able to access these
>> informations at time t+1. So the strategy would be :
>> % File second1.pdf
>> for frame =1 to 30 :
>> simulate position of objects ;
>> draw the frame ;
>> endfor;
>> save the position of all objects ;
>> % File second2.pdf
>> Read (access) the position of all objects from second 1(after frame 30);
>> for frame =31 to 60 :
>> simulate position of objects ;
>> draw the frame ;
>> endfor;
>> save the position of all objects ;
>> Etc...
>> Does someone has an idea of how to do such a thing ? I can read text file in
>> Context with no problem and integrate them in the animation process with
>> \startMPinclusions (…) \stopMPinclusions, but I did not find a way to write
>> information from MetaFun to a text file. Is Lua the solution ?
> there's always an idea ...
>
> \starttext
>\startMPpage
>runscript("metapost.setparameterset('test', table.load('mydata.lua')
> or { })") ;
>path b ; b := getparameterpath "test" "test_c";
>draw fullcircle scaled 3cm ;
>draw b scaled .4;
> % show(b);
>getparameters "test" [
>test_a = 123,
>test_b = (456,789),
>test_c = (boundingbox currentpicture)
>] ;
> runscript("table.save('mydata.lua',(metapost.getparameterset('test')))") ;
>\stopMPpage
> \stoptext
>
> but maybe i need abetter one .. a proper save/restore in the tuc file or so,
> but you can play with this first
>
> 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] ignore not closed tags in XML input
Can't you use an editor with grep, searching for something like the pattern
(with appropriate escapes of course).
dr. Hans van der Meer
> On 16 May 2022, at 17:08, Pablo Rodriguez via ntg-context
> wrote:
>
> Dear list,
>
> I would like to feed
> https://seumasjeltzz.github.io/LinguaeGraecaePerSeIllustrata/001.html as
> XML input for ConTeXt.
>
> The problem is that (as many other XML files that I haven’t generated
> myself) some and tags aren’t closed, such as in:
>
>
> https://fonts/css?greek; rel="stylesheet">
>
>
> So, all that I get is the following message:
>
> invalid xml file - parsed text
>
> Unsuccessfully I have tried the following:
>
> \xmlsetsetup{#1}{html/head/(meta|link)}{-}
>
> Is there no way to make ConTeXt more tolerant, so that it is able to
> ignore those tags?
>
> Many thanks for your help,
>
> Pablo
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Re: [NTG-context] Error: attempt to index a nil value
> tex.print("\string\\latinmodern")
should be at least double backslashes: tex.print("\\string\\latinmodern") I
would think
met vriendelijke groet
dr. Hans van der Meer
> On 13 Oct 2021, at 18:01, Hans Åberg via ntg-context
> wrote:
>
> I was suggested a long ago to hack the file
> /usr/local/texlive/2021/texmf-dist/tex/generic/context/luatex/luatex-math.tex
> and use LuaTeX directly, now using Version 1.13.2 (TeX Live 2021), but I get
> this error:
> (./luaotfload.sty
> (/usr/local/texlive/2021/texmf-dist/tex/latex/base/ltluatex.tex))
> (./luatex-math-modified.tex[\directlua]:1: attempt to index a nil value
> (global
> 'arguments')
> stack traceback:
> [\directlua]:1: in main chunk.
> l.132 }
>
> ? …
>
>
> It is from this segment in the modified luatex-math.tex:
>
> \ifdefined\directlua
> \directlua {
> if arguments["mtx:lucidabright"] then
> tex.print("\string\\lucidabright")
> else
> tex.print("\string\\latinmodern")
> end
> }
> \fi
>
> Is there a workaround? —I may ditch this setup in favour of using 'context'
> directly, so it is not so important if there is no fix.
>
>
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Re: [NTG-context] modules not found
Further investigation seems to indicate that the module files are not found when initiating the context run from another directory. Though previously this was no problem. I have moved the whole ConTeXt machinery from $HOME to another volume. Could that cause the problem? Allthough I set their location in the .bashrc. # The current version of the ConTeXt luametatex in use: CONTEXTLMTX=/Volumes/REALM/TeX/context export CONTEXTLMTX PATH=$CONTEXTLMTX/tex/texmf-osx-64/bin:$PATH ; export PATH dr. Hans van der Meer > On 8 Sep 2021, at 12:46, Hans van der Meer via ntg-context > wrote: > > Here is something I do not understand about \usemodule. > > My modules are in two places because I wanted development and production > separated: > (1) Volume/TeX/texmf/modules/ > (2) Volume/TeX/texmf/modules-new/ > > Unexpected and suddenly loading files from the first directory does not occur > any longer: modules > 'hvdm-tak' is not found > But modules from modules-new load without a hitch: modules > 'hvdm-load' is > loaded > > I have discard the caches and rebuilt them to no avail. Then trying mtxrun > --locate filename does not show any location not even from the files that are > loaded, just an empty line. > What happens inside \usemodule to cause this? I confess being baffled. And > how to convince ConTeXt to find all my modules? > > dr. Hans van der Meer > > > ___ > 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 ___
[NTG-context] modules not found
Here is something I do not understand about \usemodule. My modules are in two places because I wanted development and production separated: (1) Volume/TeX/texmf/modules/ (2) Volume/TeX/texmf/modules-new/ Unexpected and suddenly loading files from the first directory does not occur any longer: modules > 'hvdm-tak' is not found But modules from modules-new load without a hitch: modules > 'hvdm-load' is loaded I have discard the caches and rebuilt them to no avail. Then trying mtxrun --locate filename does not show any location not even from the files that are loaded, just an empty line. What happens inside \usemodule to cause this? I confess being baffled. And how to convince ConTeXt to find all my modules? dr. Hans van der Meer ___ 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] parameters TeX->LuaTeX
And \ListSort[[abc]]{value} turns out to be worse: doesn't makes it into LuaTeX
at all.
dr. Hans van der Meer
> On 5 Sep 2021, at 10:14, Hans van der Meer via ntg-context
> wrote:
>
> There is something I do not understand in the passing of parameters from TeX
> to LuaTex.
> This is my TeX definition:
> \def\ListSort[#1]#2{\directlua{hvdm.listsort([===[#2]===],[===[#1]===])}}
>
> Calling \ListSort[sep={ + }]{} delivers the string 'sep={ + }' into LuaTeX
> as the printout in the logfile shows and as intended.
> However in \ListSort[{ + }]{} the braces have disappeared and transferred is
> nothing more than ' + '.
>
> Why is the transfer messing up the character string I am passing by removing
> the outer braces? Is this a bug or is it an unavoidable consequence of the
> TeX-LuaTeX interface?
>
> dr. Hans van der Meer
>
>
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[NTG-context] parameters TeX->LuaTeX
There is something I do not understand in the passing of parameters from TeX to
LuaTex.
This is my TeX definition:
\def\ListSort[#1]#2{\directlua{hvdm.listsort([===[#2]===],[===[#1]===])}}
Calling \ListSort[sep={ + }]{} delivers the string 'sep={ + }' into LuaTeX as
the printout in the logfile shows and as intended.
However in \ListSort[{ + }]{} the braces have disappeared and transferred is
nothing more than ' + '.
Why is the transfer messing up the character string I am passing by removing
the outer braces? Is this a bug or is it an unavoidable consequence of the
TeX-LuaTeX interface?
dr. Hans van der Meer
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Re: [NTG-context] Curiosity about math.random in LuaTeX
I guess the underlying library calls are from Lua5.4? Then it is perhaps useful
to know that between 5.3 and 5.4 there is mentioned a new implementation for
math.random. Perhaps it changes the sequence of random values generated?
Someone who knows?
dr. Hans van der Meer
> On 23 Aug 2021, at 17:13, Hans Hagen via ntg-context
> wrote:
>
> On 8/23/2021 4:46 PM, Thierry Horsin via ntg-context wrote:
>> Hi everybody.
>> I wonder how does math.random() work in context. I found that this subject
>> was discussed more than ten years ago by Otared and Taco and Thomas. It is
>> clear to me how to obtain new results upon typesetting the same file by
>> changing the value of math.randomseed (with os.time()).
>> If you don't change the seed, you get the same result upon each typesetting,
>> and a seed is given in the .tuc file.
>> For example I have this:
>> ["randomseed"]=0x1.0741c18b8a4ep-6
>> How do I use (and is it possible to) this value to have the same result of
>> math.random() upon typesetting another file (with a different name) ?
>> I could provide a same fixed seed in both files, but for some reasons I
>> would like to re-use some previous results of math.random() for which no
>> seed was initially given in another .tex file.
> You have to go low level ...
>
> % \ctxlua{utilities.randomizer.setseed(0x1.0741c18b8a4ep-6)}
> % \ctxlua{utilities.randomizer.setseed(0x1.6822232009d5p-5)}
>
> \setrandomseed{123}
>
> \starttext
>test \randomnumber{1}{100}
>test \randomnumber{1}{100}
>test \randomnumber{1}{100}
> \stoptext
>
> btw, the 0x representation is lua's low level binary representation of a
> double.
>
> 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!
>
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Re: [NTG-context] lua
I am still interested in this luacondition 733 allthough the culprit has been
spotted. Very nasty typo and hard to spot fo me.
Shudder and enjoy:
\ifxmlatt{#1}{regime}{xml}\let\Flush\ModuleFlushXML\else\let\FlushModuleFlushTEX\fi
instead of
\ifxmlatt{#1}{regime}{xml}\let\Flush\ModuleFlushXML\else\let\FlushModule\FlushTEX\fi
dr. Hans van der Meer
> On 17 Aug 2021, at 15:49, Hans van der Meer via ntg-context
> wrote:
>
> Where is this message on luacondition 733 coming from? I would be glad to get
> rid of it. The message does not pinpoint the problem location enough for me
> to find its cause.
>
> close source> level 2, order 7, name './modules-docs.tex'
> close source> level 1, order 7, name 'cont-yes.mkiv'
> (\end occurred when luacondition 733 on line 8 was incomplete)
>
>
> dr. Hans van der Meer
>
>
> ___
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>
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[NTG-context] lua
Where is this message on luacondition 733 coming from? I would be glad to get rid of it. The message does not pinpoint the problem location enough for me to find its cause. close source> level 2, order 7, name './modules-docs.tex' close source> level 1, order 7, name 'cont-yes.mkiv' (\end occurred when luacondition 733 on line 8 was incomplete) dr. Hans van der Meer ___ 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] file to buffer
Is it possible to retrieve the contents of a file directly into a buffer? On the Wiki I could not find such a command. That is, equivalent to something like: \startbuffer[from file] contents of the file \stopbuffer dr. Hans van der Meer ___ 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] nil from TeX to Lua
In the TeX to Lua interface with
\def\Macro#1{\directlua{luafunction("#1")}}
the transfer from TeX to Lua is by string. However what to do at the Lua end
when calling \Macro{}?
As I understand it, then on the Lua side an empty argument and an empty string
are indistinguishable. This is not always wanted, for example when one needs to
place either a nil or an empty string into a Lua table. I am running in trouble
when to t.key set to \Macro{} should become nil or when it should become "".
Is there some common understanding about how to handle this situation?
dr. Hans van der Meer
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Re: [NTG-context] How to check if buffer or block has content
And in pathological cases where even this does not work (as I encountered a few
days ago):
\setbox\scratchbox=\vboxx{content}\ifdim\wd\scratchbox>\zeropoint .. \else ..
\fi
dr. Hans van der Meer
> On 2 Aug 2021, at 17:17, Hans Hagen via ntg-context
> wrote:
>
> On 8/2/2021 4:43 PM, Aditya Mahajan via ntg-context wrote:
>> On Mon, 2 Aug 2021, Benjamin Buchmuller via ntg-context wrote:
>>> Hi,
>>>
>>> How can I check if a buffer or block has content (or is empty) before a
>>> \useblocks or \getbuffer statement?
>>>
>>> I would like to typeset a headline only if the buffer/block has been used
>>> in a particular section and want to avoid headlines with empty sections.
>> There may be more efficient ways to do it (since buffers are stored at the
>> lua end), but you can always do \doiftextelse(\getbuffer[...]} to test it
>> buffer creates any output.
> indeed you know there is a way ...
>
> \starttext
>
> \startbuffer[test]
> test
> \stopbuffer
>
> \doifelsebuffer{test} {YES} {NOP}
>
> \permanent\protected\def\doifelsebuffercontent#1%
> {\doifelse{\luaexpr{(string.strip(buffers.getcontent("#1")) ~= "" and
> "yes")}}{yes}}
>
> \startbuffer[test]
> \stopbuffer
>
> \doifelsebuffercontent{test} {YES} {NOP}
>
> \startbuffer[test]
>
> \stopbuffer
>
> \doifelsebuffercontent{test} {YES} {NOP}
>
> \stoptext
>
> if we can agree on a proper name then i can add a (more efficient)
> \doifelse...
>
> 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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>
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