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mathalignment; alignment of columns
by wolfgangbackes＠mail.de 28 Nov '23

28 Nov '23

Something as elementary as "mathenvironment" can't really be faulty, can it? According to my recent tests, a mathalignment environment does not seem to react (any more) to the values of the "align" option. The source code hab been rendered correctly a few years ago, Minimal example 1: \starttext \startformula \startmathalignment[n=2,align={left, right}] \NC always aligned to the right \NC = u + at, \NR \NC d \NC = ut + \frac12 at^2. \NR \stopmathalignment \stopformula \stoptext Despite "align={left, right}", the first column is aligned to the right and the second to the left. This does not change, no matter which values I assign to "align", for example align={middle, middle}. The align option is also ignored in the case of other column numbers., for example: \starttext \startformula \startmathalignment[n=1,align=left] \NC This single column should \NR \NC be left-aligned, \NR \NC but it is centered. \NR \stopmathalignment \stopformula \stoptext What am I missing here? Where is my mistake? Regards Wolfgang

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Converting XHTML captions to ConTeXt captions
by Thangalin 26 Nov '23

26 Nov '23

I'd like to capture a caption and apply it to the block-level element that immediately follows. In the MWE, is there a more "ConTeXt way" to accomplish the task of adding captions to tables, figures, blockquotes, etc? % SOT \startbuffer[demo] <body> <p><span class="caption">Caption 1 <a data-type="tbl" name="lbl-1"/></span></p> <table>table 1 with caption</table> <table>table 2 without caption</table> <p><span class="caption">Caption 3 <a data-type="tbl" name="lbl-2"/></span></p> <table>table 3 with caption</table> </body> \stopbuffer \startxmlsetups xml:demo \xmlsetsetup{\xmldocument}{*}{-} \xmlsetsetup{\xmldocument}{a|p|body|table}{xml:*} \xmlsetsetup{\xmldocument}{span[@class='caption']}{xml:span} \define\CaptionText{} \define\AnchorXref{} \stopxmlsetups \startxmlsetups xml:span \define\CaptionText{\xmlflush{#1}} \stopxmlsetups \startxmlsetups xml:a \define\AnchorXref{\xmlatt{#1}{data-type}-\xmlatt{#1}{name}} \stopxmlsetups \startxmlsetups xml:body \xmlflush{#1} \stopxmlsetups \startxmlsetups xml:p \xmlflush{#1}\par \stopxmlsetups \startxmlsetups xml:table \blank \doifelsetext{\CaptionText}{% \startplacetable[ title={\ignorespaces\CaptionText{}\removeunwantedspaces.}, reference={\AnchorXref} ] \define\CaptionText{} \define\AnchorXref{} }{ \startplacetable } \startembeddedxtable \startxtablebody[body] \startxrow \startxcell \xmlflush{#1} \stopxcell \stopxrow \stopxtablebody \stopembeddedxtable \stopplacetable \blank \stopxmlsetups \xmlregistersetup{xml:demo} \starttext \xmlprocessbuffer{demo}{demo}{} \stoptext % EOT

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Compatibility Issue with TikZ/Spy Library in ConTeXt: Seeking Solutions
by wolfgangbackes＠mail.de 24 Nov '23

24 Nov '23

Hello, I am reaching out to seek assistance regarding a compatibility issue I have encountered after installing ConTeXt on a new computer. The problem arises when attempting to compile documents that utilize the spy library; the LuaTeX engine returns the following error message: "error (luacall): invalid number mtx-context | fatal error: return code: 1" Unfortunately, the error message provides no additional clues. To investigate further, I created a minimal example, which you can easily verify at https://context-on-web.eu/. The example employs the spy library within a TikZ environment. Surprisingly, the same example runs without error on my local LaTeX engine, indicating a potential compatibility issue between ConTeXt and the spy library. Here is the minimal example for your reference: \starttext \usemodule[tikz] \usetikzlibrary {spy} \starttikzpicture[spy using overlays={size=12mm}] \draw (0,0) -- (1,1) -- (2,-1); \spy [blue,magnification=5] on (1,1) in node at (3,0); \stoptikzpicture \stoptext I am curious if anyone else has encountered a similar problem with the spy library and ConTeXt and, if so, if there is a known solution. Any insights or guidance would be greatly appreciated. Thank you for your time and assistance. Best regards, Wolfgang Backes

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Invalid certificate for distribution.contextgarden.net
by Marco Patzer 23 Nov '23

23 Nov '23

Hi! The site https://distribution.contextgarden.net/ uses an invalid certificate: echo | openssl s_client -servername 'distribution.contextgarden.net' -connect 'distribution.contextgarden.net':443 2>/dev/null | openssl x509 -noout -ext subjectAltName X509v3 Subject Alternative Name: DNS:4tex.ntg.nl, DNS:mailman.ntg.nl, DNS:mysql-admin.ntg.nl, DNS:ntg.nl, DNS:www.ntg.nl This makes connections fail. distribution.contextgarden.net has to be added to the Alternative Name list. Marco

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It works after a few changes but ..
by Ursula Hermann 23 Nov '23

23 Nov '23

Dear List, After a few changes i have here an example: It works, but what I wanted to know is why are there round brackets after writing \starttheroem if i compile it. Should be without round brackets. I have the following example, the text was in a PDF from 2008, called: Theorems in ConTeXt, and also my text with the margin: \definemargindata [MyInMargin][inright] \definemarginframed[MyInMargin][topframe=on,bottomframe=on,rulethickness=1pt,width=1cm] \margintext{\blackrule[color=black, height=0.25ex, width=1cm]\\}\blackrule[color=black, height=0.25ex, width=7cm] \setupenumerations [ before={\blank[big]}, after={\blank[big]}, location=serried, width=broad, distance=0.5em, headstyle=bold, titlestyle=normal, way=bytext, conversion=numbers] \defineenumeration [theorem] [ text=Theorem, title=yes, style=italic, list=all, listtext={Theorem }] \starttext \margintext{2.1.1}{\starttheorem {The square on the hypotenuse is equal to the sum of the squares on the other two sides. Ach is das schön, dass du da bist} \stoptheorem \stoptext Maybe someone can help me.

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externalfigure crashed
by Hans van der Meer 22 Nov '23

22 Nov '23

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][] \stoptext But this crashes, see the log: \starttext \externalfigure[test.jpg][] \stoptext yours sincerely dr. Hans van der Meer

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Re: xmlpos values doubled
by Benjamin Buchmuller 22 Nov '23

22 Nov '23

Hi list, I came across this old thread as I was trying to use \xmlpos{#1} to "dynamically" create references such as \item[mystep:\xmlpos{#1}] to be referenced when other elements of this node are parsed at a later point. In fact, it seems that \xmlpos{#1} returns duplicate values. This might indeed be the intended meaning of \xmlpos{#1} as it seems related to the XML query foo/bar/index() which only looks up the position in the parent node. (I noticed that if I run this repeatedly, I get somehow different values from times to times. I can't say why.) Anyways, I was wondering if there is a TeX command to access the absolute position of an element in the tree? Similar to foo/bar[rootposition()] (or foo/bar[order()]? – Can't make sense of the entry in the XML manual.) Thank you for your help! Benjamin > Hi Ben, > > I think that both \xmlpos and \xmldepth give weird results. > > With this minimal sample: > > \startbuffer[text] > <doc>first level > <s>second level > <ss>third level</ss> > <ss>third level</ss> > </s> > <s>second level > <ss>third level</ss> > <ss>third level</ss> > </s> > <s>second level > <ss>third level</ss> > <ss>third level</ss> > </s> > </doc> > \stopbuffer > > \startxmlsetups xml:text > \xmlsetsetup{#1}{doc|s|ss}{xml:*} > \stopxmlsetups > > \xmlregistersetup{xml:text} > > \startxmlsetups xml:doc > \chapter{\xmlpos{#1}\letterat\xmldepth{#1}: \xmlflush{#1}} > \stopxmlsetups > > \startxmlsetups xml:s > \section{\xmlpos{#1}\letterat\xmldepth{#1}: \xmlflush{#1}} > \stopxmlsetups > > \startxmlsetups xml:ss > \subsection{\xmlpos{#1}\letterat\xmldepth{#1}: \xmlflush{#1}} > \stopxmlsetups > > \setuphead[chapter,section,subsection][before=,after=,] > \starttext > \xmlprocessbuffer{main}{text}{} > \stoptext > > \xmldepth shows values that I think are +1 than they should be. > > \xmlpos counts in pairs and not in units (as you wrote, 2, 4, 6...). > > Hans, could you check whether this is working as expected? > > Sorry, but if this isn’t a bug, I have no idea of what I may be missing. > > Pablo >

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Markdown to HTML cross-references
by Thangalin 21 Nov '23

21 Nov '23

Hi list, I'm looking to implement a consistent syntax for cross-references in KeenWrite <https://keenwrite.com/> and am wondering what you think would make the most sense for translating into ConTeXt commands. First, some background (the first two give an overview, the others are cross-reference references for various syntaxes): - https://talk.commonmark.org/t/cross-references-and-citations/4013/7 - https://thesynack.com/posts/markdown-captions - https://quarto.org/docs/authoring/cross-references.html - https://mystmd.org/guide/cross-references - https://lierdakil.github.io/pandoc-crossref - https://github.com/tomduck/pandoc-eqnos I'm leaning towards the following syntax: Markdown Item (table, blockquote, TeX block, figure, code, R chunk, etc.) : caption text {#type:label} See [@type:label] for details. There's a unit test that shows what's currently being generated with a number of examples for images, tables, blockquotes, internationalization, and so on: https://gitlab.com/DaveJarvis/KeenWrite/-/blob/main/src/test/java/com/keenw… The code is a work-in-progress; so the tests may have changed depending on if/when you view the Java source code. Presently, the captions produce anchor references, mostly. The following seems easier to typeset using ConTeXt: <p><span class="caption">Meschiya Lake - Lucky Devil <a data-type="lyrics" name="blues" /></span></p> This diverges from the HTML specification for tables (table/caption) and figures (figure/figcaption). It would also mean having to write ConTeXt macros that flip the spans and anchors to produce a caption such as: *Lyrics 1.1.* Meschiya Lake - Lucky Devil While there are plenty of ways of presenting captions (e.g., multi-column images with sub-figure numbers) the majority of cross-references are to a single "thing" with a single "caption". What are your thoughts on this proposal? (Keeping in mind I'm the only person working on KeenWrite and while I'm trying to keep the syntax compatible with pandoc, implementing the full pandoc-crossref syntax is out of scope for me. Thank you!

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Strange behavior with anglestriped()
by Fabrice Couvreur 21 Nov '23

21 Nov '23

Hi, I don't understand why the hatching of the two rectangles is not the same color. Thanks for your help. Fabrice \starttext \setupbodyfont[8pt] \startMPcode path p, q, r, b ; z[0] = (2cm,0cm) ; z[1] = (2cm,2cm) ; z[2] = (0cm,2cm) ; p := unitsquare xyscaled (9cm, 5cm) ; q := llcorner p--z[0]--z[1]--z[2]--cycle ; r := unitsquare xyscaled (7cm,3cm) shifted(2cm,2cm) ; b := z[2]--z[1]--ulcorner r--urcorner p--lrcorner r--z[1]-- z[0]--llcorner p--cycle ; draw b anglestriped (1,45,2) withcolor cyan; draw q anglestriped (1,45,2) withcolor cyan; draw p ; label.llft("A", p) ; label.lrt("D", p) ; label.ulft("B", p) ; label.urt("C", p) ; label.lft("M", z[2]) ; label.ulft("N", z[1]) ; label.bot("P", z[0]) ; label.top("J", ulcorner r) ; label.rt("I", lrcorner r) ; label.bot(btex $x$ etex,(llcorner p+z[0])/2); label.lft(btex $x$ etex,(llcorner p+z[2])/2); \stopMPcode \stoptext

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Re: Metapost label text surrounded by white border
by Emanuel Han 21 Nov '23

21 Nov '23

Thanks Hraban. This indeed helped. It‘s my first reply in this mailing list. Hope I do it right by „replying to all“. > Am 19.11.2023 um 19:37 schrieb Henning Hraban Ramm <texml(a)fiee.net>: > > Am 19.11.23 um 16:41 schrieb Emanuel Han via ntg-context: >> I'd like to surround black text with a white 1mm thick border in a Metapost label. Here is my code, which doesn't draw the border at all and which draws the text in white instead of black (I'm using mkiv and mkxl version 2023.09.26 18:19 on osx-arm6): >> | >> |beginfig(1); >> % Define the text and colors >> string label_text; >> label_text = "Your Text"; >> color text_color, border_color; >> text_color = black; >> border_color = white; >> % Draw the label with the specified colors >> label(textext(label_text) scaled 1.0, origin) withcolor text_color withpen pencircle scaled 1mm withcolor border_color; >> endfig;| > > Have a look into luametafun.pdf (p.10) if lmt_outline does what you want. > > Hraban > ___________________________________________________________________________________ > If your question is of interest to others as well, please add an entry to the Wiki! > > maillist : ntg-context(a)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 > ___________________________________________________________________________________

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