- ntg-context - Mailing Lists

ConTeXt support for Nova text editor (MacOS)
by Paul Mazaitis 09 Dec '23

09 Dec '23

Hello, list! I'm working on a ConTeXt language extension for the Nova editor by Panic software (https://nova.app/) The extension is here: https://github.com/pmazaitis/nova-context/releases/tag/0.6.0 ...currently in beta, but fairly functional. This version of the extension supports: * Syntax Highlighting * Folding for (most) environments * Navigating by Symbols (headings: chapter, section, etc.) * Spell-checking of body text and section titles * Managing builds with Nova's tasks system (As an aside, this extension uses an updated version of the ConTeXt tree-sitter parser [https://github.com/pmazaitis/tree-sitter-context] that can now recognize (most) environments and use them to parse out the document hierarchy.) Limitations at the moment: not all environments are supported (only those with \start and \stop commands right now), and the extension only supports English. Happy for any bug reports, etc., -Paul

5 6

mtx-synctex.lua question
by Jim 08 Dec '23

08 Dec '23

Hi, In mtx-synctex.lua, inside local function findlocation(filename,page,xpos,ypos,tolerance) there is the following code: for s=1,tolerance,max(tolerance//10,1) do locate( s, 0) if fi ~= 0 then tl = s ; goto done end locate(-s, 0) if fi ~= 0 then tl = s ; goto done end locate( s, s) if fi ~= 0 then tl = s ; goto done end locate( s,-s) if fi ~= 0 then tl = s ; goto done end locate(-s, s) if fi ~= 0 then tl = s ; goto done end locate(-s,-s) if fi ~= 0 then tl = s ; goto done end end Is the omission of the locate(0, s) ... and locate(0, -s) ... cases intentional, or is that an oversight? If intentional, can someone explain the rationale to me? Thanks. Jim

3 5

Buffer and \input content as input for \processtokens, etc.
by Jairo A. del Rio 06 Dec '23

06 Dec '23

Hi, list! My question is just like that: how do I pass buffers or \input content to \processtokens. What I have done so far: \tolerant\protected\def\foo#={\ifparameter#1\or\oof{#1}\fi} \protected\def\oof#1{<#1>} \startbuffer[ofo] % Output: Th<i>s <is> not a <question> anymore! Th{i{s {is} not a {question} anymore! \stopbuffer \starttext \processtokens\foo\foo\relax\space{Th{i}s {is} not a {question} anymore!} % Neither \inlinebuffer nor \rawbuffer work in the example above \stoptext I've also tried a variant of the mechanism described in OPmac trick described here <https://petr.olsak.net/opmac-tricks-e.html#etoks> to process content token by token, but it only works with \normalinput. Any suggestions or guidance? Thank you in advance. Best regards, Jairo

2 1

(again) wrong destination types?
by Pablo Rodriguez 06 Dec '23

06 Dec '23

Dear list, sorry for insisting, but this is important for my documents. I have the following sample: \setupinteraction[state=start, page=name, focus=standard] \starttext a\footnote{b} \stoptext If page is set to anything different than no in \setupinteractionscreen, focus=standard will not work (it will be used as focus=fit). Could anyone confirm the issue or explain me what I’m doing wrong? Many thanks for your help Pablo

2 4

Re: externalfigure crashed
by Wolfgang Schuster 06 Dec '23

06 Dec '23

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 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 Wolfgang

7 9

framed: rounded corner oddity
by Henning Hraban Ramm 05 Dec '23

05 Dec '23

Hi, in my ConTeXt book, some examples for \framed with rounded corners look odd, as if the MetaPost calculation of rounded corners fails. I can’t find a minimal example that shows the problem, and I can’t imagine which of the settings in my extensive environment would cause it. Find below the code that works on its own, but causes the results as shown in the attachments within my book. There’s nowhere a \setupframed, and nothing that should influence MetaPost. Do you have any clue for what I should look? Hraban \starttext \framed[ rulethickness=1pt, offset=0.5em, background=color, backgroundcolor=yellow, framecorner=13, backgroundcorner=07, backgroundoffset=0.5em, ]{Das Runde muss ins Eckige} \blank \framed[ frame=on, corner=round, frameoffset=0.5em, framecolor=black, background=color, backgroundcolor=darkgreen, backgroundoffset=1em, foregroundcolor=white, foregroundstyle={\ss\bf}, ]{Komm ins Grüne!} \stoptext

1 0

\unit{mercury} renders as m (meter) and \unit{millimetermercury} doesn't work as expected
by Marco Patzer 05 Dec '23

05 Dec '23

Hi! I'm struggling with the rendering of a particular liquid metal: %% renders as m (meter), not as Hg \unit{mercury} %% renders as mm·m, not as mmHg \unit{millimetermercury} This is strange, since both “mercury” and “millimetermercury” are defined in phys-dim.lua. To get mercury recognised as a unit this can be used: \registerunitshortcut [mercury=mercury] Now \unit{mercury} renders correctly as Hg. Why is that \registerunitshortcut necessary? Is it even correct to use it like this? However, even then millimetermercury doesn't render correctly: %% renders as mm·Hg, not as mmHg \unit{millimetermercury} How to get millimetermercury render as mmHg? And “inch mercury” render as inHg? I can't find “inchmercury” in phys-dim.lua, only “millimetermercury”, should it be added? Example: %% \enabletrackers [physics.units] %% inch should render as “in” %% \setupunittext [inch=in] \starttext \unit{mercury}\crlf %% renders: mm · m \unit{12 millimetermercury}\crlf %% renders: mm · m \unit{12 inchmercury}\crlf %% renders: in · m %% why is this necessary to get mercury rendered as Hg? \registerunitshortcut [mercury=mercury] \unit{12 millimetermercury}\crlf %% renders: mm · Hg \unit{12 inch mercury}\crlf %% renders: in · Hg \stoptext Questions: 1) Why is \unit{mercury} not working, although it's listed in phys-dim.lua? 2) Is the call \registerunitshortcut [mercury=mercury] necessary/correct? 3) How to make \unit{millimetermercury} render as mmHg and \unit{inch mercury} render as inHg? Marco

2 4

Colored Paragraph
by Ursula Hermann 05 Dec '23

05 Dec '23

Dear List, i have this example: \setupbodyfont[modern,10pt] \definemargindata [MyInMargin][inright] \definemarginframed[MyInMargin][topframe=on,bottomframe=on,rulethickness=1pt,width=1cm] \defineenumeration [theorem] [ text=Theorem, title=yes, width=fit, distance=0.5em, alternative=serried, ] \margintext{\blackrule[color=black, height=0.25ex, width=1cm]\\}\blackrule[color=black, height=0.25ex, width=15cm] \starttext \margintext {1.1.1} \startparagraph It was essential for Hasselt to have a bridge across the Zwarte Water river. The bishop of Utrecht gave Hasselt his consent in 1486. \blank Other cities in the neighbourhood of Hasselt were afraid of the toll money to be paid when crossing this bridge so they prevented the construction for many years. \stopparagraph \stoptext The paragraph should have a color in the background. How can I get an colored paragraph? Many thanks Uschi

2 5

Inline math spacing
by Alexandre Christe 04 Dec '23

04 Dec '23

Dear list, I’m facing some strange spacing with inline maths. Sometimes the space is ok (like around the first two fractions), but sometimes it is way too little. Do I miss to configure something? Thanks in advance, A. Christe

3 5

externalfigure regression?
by Thangalin 04 Dec '23

04 Dec '23

Hi, From the wiki <https://wiki.contextgarden.net/Command/externalfigure>: "When the file extension is .auto or method=auto is used, ConTeXt reads the first few bytes of the file to determine the filetype. Such an auto-discovery is useful for remote images that do not have a file extension." current version: 2023.09.26 18:19 Code: % SOT \starttext \startplacefigure \externalfigure[https://placekitten.com/408/287][method=auto] \stopplacefigure \stoptext % EOT Expected: Cute kitten photo. Actual: Error. Is this a regression? Or has the syntax changed (stale wiki)? Specifying the type works (I'd've thought it not necessary to specify the method at all, given both magic headers and HTTP content-type could determine the type): % SOT \starttext \startplacefigure \externalfigure[https://placekitten.com/408/287][method=jpg] \stopplacefigure \stoptext % EOT See also: https://gitlab.com/DaveJarvis/KeenWrite/-/blob/main/src/main/java/com/keenw… https://gitlab.com/DaveJarvis/KeenWrite/-/blob/main/src/main/java/com/keenw…

1 0

marginwidths
by Hans van der Meer 03 Dec '23

03 Dec '23

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 sincerely dr. Hans van der Meer

4 5

unwanted blank page
by Hans van der Meer 03 Dec '23

03 Dec '23

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 sincerely dr. Hans van der Meer % test pagenumbering start-stop \setuppapersize[A5][A5] \starttext \setuppagenumbering[state=stop] \ConTeXt\space\contextversion\blank This is page 1 without pagenumber.\crlf \page \setuppagenumbering[state=start] This should be a page with pagenumber 2.\crlf But the pagenumber is 3 instead after blank page 2. \stoptext

4 5

Bold TeX Gyre Pagella Math results in Math error: parameter 'subshiftdown' with id 48 in style 2 is not set
by Marco Patzer 01 Dec '23

01 Dec '23

Hi! I have a strange issue when TeX Gyre Pagella Math is used together with bold text. MWE: \definefontfamily [mainface] [rm] [TeX Gyre Pagella] \definefontfamily [mainface] [ss] [TeX Gyre Heros] %% comment/remove this line and it works \definefontfamily [mainface] [mm] [TeX Gyre Pagella Math] \setupbodyfont [mainface] \definedescription [foo] \starttext %% works, no issues here \math{x_y} %% fails if TeX Gyre Pagella Math is used \bold{\math{x_y}} \stoptext The error is: tex error > tex error on line 14 in file /tmp/tex-xDj/xDj.mkvi: Math error: parameter 'subshiftdown' with id 48 in style 2 is not set <macro> \math_m_nop #1->\relax \ifmmode #1\else \normalstartimath \begingroup #1\endgroup \normalstopimath \fi <line 3.14> \bold{\math{x_y} What is the issue here? Marco LMTX 2023.09.04 19:15

2 5

Support Chinese Date Conversion
by Yihan Song 29 Nov '23

29 Nov '23

Dears, I am opening a PR <https://github.com/contextgarden/context/pull/1> to improve the Chinese date conversion but it seems that repo is just a mirror site without development activities, can someone help to review this one? Thanks in advance. Cheers, Yihan

2 2

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

2 7

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

1 0

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

2 2

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

4 6

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.

3 6

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

3 2

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 >

2 1

Markdown to HTML cross-references
by Thangalin 22 Nov '23

22 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!

1 0

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

3 4

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 > ___________________________________________________________________________________

1 0

Drawing calligraphy practice grid in metafun
by Andres Conrado Montoya 21 Nov '23

21 Nov '23

Hello list I've been working on a little project of mine. I give calligraphy workshops and I have been using a nice tool created by Josselin Cuette, available at http://ductus.josselincuette.com/ to generate practice templates for interested people. However, I would prefer to have an offline solution. This adventure started with the usual insidious idea: "I could do this in ConTeXt! And this is a great opportunity to learn metafun!" A couple weeks later, I have an almost ready product! It compiles fine, but I have the following issue: The template creates a Line, composed of Sections. And uses variables to assign a measurement for the nib-width, and an amount of ascender, x-height and descender Sections (nib-widths), to compose a Line. But also, I would like to, if needed, display nib-width marks on the left side. My code so far generates marks, but only for the first Line. I think they are generated but maybe they are placed on top of each other, maybe? I'm not sure why my logic is not working. Also, if I change the amount for ascenders, descenders of x-height, the marks are not drawn correctly. My current path for a mark is a custom path emulating two unit squares, nib-width size, on top of each other, with the top one shifted a nib-width to the right. A little bit like a chess board, or a scale ruler on a map. But this would only work in Lines that have an even amount of Sections. I'm not sure how to proceed with that... I tried using unit squares, but that made things very complex, and after fumbling around I managed to get this far. If you can take a look, or have some advice, it would be greatly appreciated. I hope it is understandable. My code: %%%%%%%%%%%%%%%%%% \setuppapersize[letter,landscape][letter,landscape] \setuplayout[backspace=15mm,width=250mm,header=0mm,footer=0mm] \startreusableMPgraphic{pauta} % Global variables: % Show nib-width marks boolean marks ; marks := true ; % Path for nib-width path mark ; mark := (0,0) -- (1,0) -- (1,2) -- (2,2) -- (2,1) -- (0,1) -- cycle ; % Line width numeric line ; line := \the\textwidth ; % Type box numeric box ; box := \the\textheight ; % Nib width (distance between lines) numeric nib ; nib := 3mm ; % Ascenders for writing line numeric asc ; asc := 3 ; % x-height for writing line numeric med ; med := 4 ; % Descenders for writing line numeric dsc ; dsc := 3 ; % Total height of a writing line in mm (including asc, med, and dsc) numeric lineHeight ; lineHeight = (asc + med + dsc) * nib ; % Available lines on a page numeric availableLines ; availableLines = round(box / lineHeight) - 1 ; % Starting position numeric start ; start := 0 ; % Macros % Draw a section of a line (ascender, x-height or descender) vardef Section(expr lines, initial) = draw (0, initial) -- (line, initial) withpen pencircle scaled 0.2mm ; for i=0 step 1 until lines : save final ; final = i*nib ; pair a; a = (0, final + initial) ; pair b; b = (line, final + initial) ; draw a -- b withpen pencircle scaled 0.1mm ; % If marks=true show nib-width marks if marks = true: fill mark scaled nib yshifted (final*2) ; fi ; endfor ; draw (0, final + initial) -- (line, final + initial) withpen pencircle scaled 0.2mm ; final + initial enddef ; % Draw a line with the three secions (asc, med, dsc) vardef Line(expr descender, ascender, xheight, initial) = numeric dd, oo, aa ; % Líneas dd = Section(descender, initial) ; oo = Section(xheight, dd) ; aa = Section(ascender, oo) ; % Devolver posicion final con espacio para siguiente renglon aa + nib*2 enddef ; % Llenar la página con renglones for i=1 upto availableLines : start := Line(dsc, asc, med, start) ; endfor ; \stopreusableMPgraphic \startdocument \startstandardmakeup \reuseMPgraphic{pauta} \stopstandardmakeup \stopdocument %%%%%%%%%%%%%%%%%%%%%%%%%% -- Andrés Conrado Montoya Andi Kú andresconrado(a)gmail.com http://sesentaycuatro.com http://messier87.com http://chiquitico.org ---------------------------------------- Los fines no justifican los medios, porque la medida verdadera de nuestro carácter está dada por los medios que estamos dispuestos a utilizar, no por los fines que proclamamos. ---------------------------------------- “You develop an instant global consciousness, a people orientation, an intense dissatisfaction with the state of the world, and a compulsion to do something about it. From out there on the moon, international politics look so petty. You want to grab a politician by the scruff of the neck and drag him a quarter of a million miles out and say, ‘Look at that, you son of a bitch.’” — Apollo 14 astronaut Edgar Mitchell

1 0