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by mangrove＠mailbox.org 14 Aug '23

14 Aug '23

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split align in formulas
by Xavier B. 14 Aug '23

14 Aug '23

I have this text and the end of the paragraph: Definitivament és el mètode més senzill. L'atribució més antiga que conec d'aquest mètode és de James Tanton \cite{canvi-variable-equacio-segon-grau, james-tanton-web}. \placeformula[eq:james-tanton-canvi-de-variables] \startformula \startalign \NC ax^2 + bx + c = 0 \NC \NR \NC ax^2 + bx = -c \NC \quad \text{transposem } c\NR \NC x^2 + \frac{b}{a} x = - \frac{c}{a} \NC \quad \text{dividim per }a\NR \NC x \left( x + \frac{b}{a} \right) = - \frac{c}{a} \NC \quad \text{factoritzam} \NR \NC (k-D)(k+D) = - \frac{c}{a} \NC \quad \text{canvi de variable} \NR \NC k^2 - D^2 = - \frac{c}{a} \NC \quad \text{suma per diferència} \NR \NC k = \pm\sqrt{ D^2 - \frac{c}{a}} \NC \quad \text{resolem l'equació} \NR \NC x = k - D = \NC \pm \sqrt{ D^2 - \frac{c}{a}} - D\quad \text{desfeim el canvi} \NR \stopalign \stopformula on $D = (\frac{b}{2a})$ i $x = k-D$. and then the formula goes to next page. Is there any way to split align environment? In wiki I could not find nothing. Thanks in advance,

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Why overbar is so big
by Xavier B. 14 Aug '23

14 Aug '23

If you run \starttext Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. $\overbar{OA} = 4,2$ \stoptext Then the overbar has the bar in a very long altitude. Can you please, see the output attached. Thanks in advance, Xavier PS: I use context version:mtx-context | ConTeXt Process Management 1.04 mtx-context | mtx-context | main context file: /usr/share/texmf-dist/tex/context/base/mkiv/context.mkiv mtx-context | current version: 2023.03.10 12:15 mtx-context | main context file: /usr/share/texmf-dist/tex/context/base/mkxl/context.mkxl mtx-context | current version: 2023.03.10 12:15

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Nested aligns in formulasjj
by Gerion Entrup 14 Aug '23

14 Aug '23

Hi, I try to typeset a nested align in a formula. However, the results looks really wrong. Here is a MWE: ``` \starttext \startformula \startalign \NC a = \NC (b, c) \quad \text{with}\NR \NC \NC \startalign \NC b \NC = something \NR \NC c \NC = someother \NR \stopalign \NR \NC somelong = \NC bla \NR \stopalign \stopformula \stoptext ``` Am I doing something wrong or are nested aligns not possible? Best, Gerion

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units module for LMTX?
by Xavier B. 13 Aug '23

13 Aug '23

I see there is no units module available anymore [1][2]: mtxrun --script install-modules --list [xan@coronari apunts-espa]$ mtxrun --script install-modules --list mtx-install-modules | loading entries from file '/home/xan/bin/context-current/tex/texmf-context/tex/context/modules/third/mtx-install-imp-tikz.lua' mtx-install-modules | loading entries from file '/home/xan/bin/context-current/tex/texmf-context/tex/context/modules/third/mtx-install-imp-modules.lua' mtx-install-modules | mtx-install-modules | account : https://modules.contextgarden.net/dl : t-account.zip mtx-install-modules | algorithmic : https://modules.contextgarden.net/dl : t-algorithmic.zip mtx-install-modules | animation : https://modules.contextgarden.net/dl : t-animation.zip mtx-install-modules | annotation : https://modules.contextgarden.net/dl : t-annotation.zip mtx-install-modules | bibmod-doc : https://modules.contextgarden.net/dl : bibmod-doc.zip mtx-install-modules | bnf : https://modules.contextgarden.net/dl : t-bnf.zip mtx-install-modules | chromato : https://modules.contextgarden.net/dl : t-chromato.zip mtx-install-modules | collating : https://modules.contextgarden.net/dl : Environment-for-collating-marks.zip mtx-install-modules | crossref : https://modules.contextgarden.net/dl : t-crossref.zip mtx-install-modules | cyrillicnumbers : https://modules.contextgarden.net/dl : t-cyrillicnumbers.zip mtx-install-modules | degrade : https://modules.contextgarden.net/dl : t-degrade.zip mtx-install-modules | enigma : https://modules.contextgarden.net/dl : enigma.zip mtx-install-modules | fancybreak : https://modules.contextgarden.net/dl : t-fancybreak.zip mtx-install-modules | filter : https://modules.contextgarden.net/dl : t-filter.zip mtx-install-modules | french : https://modules.contextgarden.net/dl : t-french.zip mtx-install-modules | fullpage : https://modules.contextgarden.net/dl : t-fullpage.zip mtx-install-modules | gantt : https://modules.contextgarden.net/dl : t-gantt.zip mtx-install-modules | gfsdidot : https://modules.contextgarden.net/dl : gfsdidot.zip mtx-install-modules | gm : https://modules.contextgarden.net/dl : t-gm.zip mtx-install-modules | gnuplot : https://modules.contextgarden.net/dl : t-gnuplot.zip mtx-install-modules | greek : https://modules.contextgarden.net/dl : t-greek.zip mtx-install-modules | grph-downsample : https://modules.contextgarden.net/dl : grph-downsample.lua.zip mtx-install-modules | gs : https://modules.contextgarden.net/dl : t-gs.zip mtx-install-modules | high : https://modules.contextgarden.net/dl : high.zip mtx-install-modules | inifile : https://modules.contextgarden.net/dl : t-inifile.zip mtx-install-modules | karnaugh : https://modules.contextgarden.net/dl : karnaugh.zip mtx-install-modules | layout : https://modules.contextgarden.net/dl : t-layout.zip mtx-install-modules | letter : https://modules.contextgarden.net/dl : t-letter.zip mtx-install-modules | letterspace : https://modules.contextgarden.net/dl : t-letterspace.mkiv.zip mtx-install-modules | lettrine : https://modules.contextgarden.net/dl : t-lettrine.zip mtx-install-modules | lua-widow-control : https://modules.contextgarden.net/dl : lua-widow-control.zip mtx-install-modules | mathsets : https://modules.contextgarden.net/dl : t-mathsets.zip mtx-install-modules | pocketdiary : https://modules.contextgarden.net/dl : PocketDiary-V2.zip Environment-for-collating-marks.zip Collection-of-calendars-based-on-PocketDiary-module.zip mtx-install-modules | pret-c.lua : https://modules.contextgarden.net/dl : pret-c.lua.zip mtx-install-modules | rst : https://modules.contextgarden.net/dl : t-rst.zip mtx-install-modules | rsteps : https://modules.contextgarden.net/dl : t-rsteps.zip mtx-install-modules | simplebib : https://modules.contextgarden.net/dl : t-simplebib.zip mtx-install-modules | simplefonts : https://modules.contextgarden.net/dl : t-simplefonts.zip mtx-install-modules | simpleslides : https://modules.contextgarden.net/dl : t-simpleslides.zip mtx-install-modules | stormfontsupport : https://modules.contextgarden.net/dl : stormfontsupport.zip mtx-install-modules | taspresent : https://modules.contextgarden.net/dl : t-taspresent.zip mtx-install-modules | tikz : https://mirrors.ctan.org/install : graphics/pgf/base/pgf.tds.zip graphics/pgf/contrib/pgfplots.tds.zip graphics/pgf/contrib/circuitikz.tds.zip mtx-install-modules | title : https://modules.contextgarden.net/dl : t-title.zip mtx-install-modules | transliterator : https://modules.contextgarden.net/dl : t-transliterator.zip mtx-install-modules | typearea : https://modules.contextgarden.net/dl : t-typearea.zip mtx-install-modules | typescripts : https://modules.contextgarden.net/dl : t-typescripts.zip mtx-install-modules | urwgaramond : https://modules.contextgarden.net/dl : f-urwgaramond.zip mtx-install-modules | urwgothic : https://modules.contextgarden.net/dl : f-urwgothic.zip mtx-install-modules | vim : https://modules.contextgarden.net/dl : t-vim.zip mtx-install-modules | visualcounter : https://modules.contextgarden.net/dl : t-visualcounter.zip Is it true? Thanks in advance, Xavier [1] https://wiki.contextgarden.net/Modules#ConTeXt_LMTX [2] https://wiki.contextgarden.net/Units

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Pass string into text background graphic
by Thangalin 13 Aug '23

13 Aug '23

Hi list, I'm attempting to make a stylized border around paragraphs that can span pages. The border runs along the side and the top. (Ideally the top border wouldn't repeat, but that's a minor issue.) The issue I'm having is that the title for the text doesn't always appear. Instead, there's a small gap along the top border where the title should be. Am I going about this the wrong way? % SOT \startbuffer[demo] <html> <body> <div class="concurrent" data-title="Berth 5" data-location="San Diego"> Text Goes Here </div> <div class="concurrent" data-title="Road" data-location="Beale AFB"> Different Text Goes Here </div> </body> </html>\stopbuffer \startxmlsetups xml:xhtml \xmlsetsetup{\xmldocument}{*}{-} \xmlsetsetup{\xmldocument}{html|body}{xml:*} \xmlsetsetup{\xmldocument}{div}{xml:*}\stopxmlsetups \xmlregistersetup{xml:xhtml} \startxmlsetups xml:html \xmlflush{#1}\stopxmlsetups \startxmlsetups xml:body \xmlflush{#1}\stopxmlsetups \startxmlsetups xml:div \setvariable{div}{\xmlatt{#1}{class}}{#1} \start[\xmlatt{#1}{class}]\xmlflush{#1}\stop\stopxmlsetups \startusableMPgraphic{GraphicConcurrent} begingroup; string legend; picture title; picture border; picture bg; numeric tw; numeric th; legend := \MPstring{concurrent}; title := nullpicture; border := nullpicture; bg := textext( "\strut " & legend ); tw := xpart lrcorner bg - xpart llcorner bg; th := ypart ulcorner bg - ypart llcorner bg; addto title also image( fill unitsquare xysized (tw + 8, th) shifted ulcorner multipars[1] shifted 28 right shifted 8 down withcolor white; draw textext.drt( legend ) shifted ulcorner multipars[1] shifted 32 right shifted 3 down; ); addto border also image( for i = 1 upto nofmultipars: draw llcorner multipars[i] -- ulcorner multipars[i] shifted 8 down .. ulcorner multipars[i] shifted 8 right -- urcorner multipars[i] withpen pencircle scaled 0.75 withcolor black; endfor; ); draw image( draw border; draw title; ); endgroup;\stopusableMPgraphic \definetextbackground[TextConcurrentFrame][ mp=GraphicConcurrent, frame=off, topoffset=1em, leftoffset=1em, location=paragraph, ] \definestartstop[concurrent][ before={% \blank[big]% LEGEND: \xmlatt{\getvariable{div}{concurrent}}{data-title}% \blank[big]% \setMPtext{concurrent}{\xmlatt{\getvariable{div}{concurrent}}{data-title}} \startTextConcurrentFrame}, after={\stopTextConcurrentFrame\blank[big]}, ] \starttext \xmlprocessbuffer{main}{demo}{}\stoptext % EOT If I change the following line: legend := \MPstring{concurrent}; to: legend := "some string"; Then the title "some string" is repeated. It seems like the value for \MPstring{concurrent} is being cached in some situations and ignored in others. Essentially, I'm trying to visually offset multiple paragraphs using a left-hand vertical rule along with a top horizontal rule that has a title. Each new "concurrent" section needs its own header that doesn't repeat. Is there a ConTeXt-way to accomplish this feat? Cheers!

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side-by-side paragraphs broken?
by Thomas A. Schmitz 13 Aug '23

13 Aug '23

Hi, in more recent versions of lmtx, the side-by-side mechanism appears to be broken; example below. The right-hand paragraph does not respect the margin and backspace setting. The output looks fine in mkiv and with older versions of lmtx (the one from texlive, so 2023.03.10). Not sure if this has been reported yet. All best Thomas \setuppapersize[A4,landscape] \setuplayout[height=fit, width=middle, header=0cm, footer=0cm, leftmargin=2cm, topspace=1.2cm, backspace=1.5cm] \showframe \defineparagraphs[Half] [n=2] \setupparagraphs [Half] [before=,after=,distance=3em,align={normal,hanging},tolerance={stretch,verytolerant}] \setupparagraphs [Half] [1] [width=0.43\textwidth,tolerance={stretch,verytolerant}] \setupparagraphs [Half] [2] [rulethickness=2mm,rulecolor=gray,rule=on,tolerance={stretch,verytolerant}] \starttext \startHalf \input ward \nextHalf \input knuth \stopHalf \stoptext

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Font switching, default features, and a request
by Hamid,Idris 13 Aug '23

13 Aug '23

Dear gang, Consider the following example: ============== \setupdirections[bidi=global,method=one] \startTEXpage[offset=1em,width=14in] \definedfont[almfixed*arabic] \switchtobodyfont[almfixed*arabic] \switchtobodyfont[almfixed] % \addff{arabic} \startbuffer[] \startlines الثَّعْلَبُ الْأَسْمَرُ السَّرِيعُ يَقْفِزُ فَوْقَ الْكَلْبِ الْكَسُولِ! The quick brown fox jumps over the lazy dog! \stoplines \stopbuffer {\tfxx \type{\tfxx} \getbuffer} {\tfx \type{\tfx} \getbuffer} \type{\tf} \getbuffer {\tfa \type{\tfa} \getbuffer} {\tfb \type{\tfb} \getbuffer} {\tfc \type{\tfc} \getbuffer} {\tfd \type{\tfd} \getbuffer} \stopTEXpage ============== There are three font switches to choose from: ============== \definedfont[almfixed*arabic] \switchtobodyfont[almfixed*arabic] \switchtobodyfont[almfixed] ============== Let's toggle one at a time: 1) \definedfont[almfixed*arabic] a) gives us the correct bidi output, but only for the \tf size b) is ignored for every other size switch. a) and b) are expected behavior. 2) \switchtobodyfont[almfixed] a) gives us Arabic-script bidi output, b) exhibits no Arabic-script features c) gives the same result for each size switch This means that the fontfeature "arabic" -- already predefined in ConTeXt (font-pre.mkiv) -- is not explicitly applied. Curiously, invoking \addff{arabic} does not affect the output. Why is it that \addff{arabic} does not work here? 3) \switchtobodyfont[almfixed*arabic] suppresses the font entirely and we're back to Latin Modern for all sizes. Assuming that this is expected behavior, it appears to follow that fontfeatures cannot be invoked for \switchtobodyfont and the like, only from within the typescript read by \switchtobodyfont etc. ======= REQUEST: Since ALMFixed is already distributed with ConTeXt, could Hans make the fontfeature "arabic" default for this font? That is \switchtobodyfont[almfixed] should automatically a) give us Arabic-script bidi output (already there), b) exhibit Arabic-script features (missing) c) gives the same result for each size switch (already there) (Indeed, it would be useful to have *arabic-predefined typescripts/bodyfonts for a few other commonly available/used Arabic fonts as well. Would be willing to make a list at some point, test, etc.) Thank you in advance for considering this request. Best wishes Idris -- Professor Idris Samawi Hamid Department of Philosophy Colorado State University Fort Collins, CO 80523

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Scaling characters without font switching in CLD
by Hamid,Idris 13 Aug '23

13 Aug '23

Dear gang, I. In Context, as is well known, scaling a character is not independent of switching the font: ======= \startTEXpage[offset=1em] \definefont[Times][times @ 14pt] \Times Test \tfx Test \setupinterlinespace \Times Test \switchtobodyfont[x]Test \Times Test \high{Test} \stopTEXpage ======= \tfx causes a switch to computer modern. Of course, with the right typescripts and \setupbodyfont, one can maintain stylistic consistency when switching fonts. But what if we want to scale independently of font switching? II. One approach might be to use symbols: \startTEXpage \definesymbol[Tee][\getglyph{times}{T}] \symbol[Tee]est \tfx \symbol[Tee]est \tfa \symbol[Tee]est \stopTEXpage In this example, \tfa does scale the symbol Tee. But \tfx does not scale the symbol! Why does \tfa (or higher such as \tfb etc.) work, but not \tfx (or lower)? III. The best approach would be to do it in CLD (Context Lua Code). That is mostly beyond my skill to write from scratch without a template, but there are some experiments in the system file font-imp-effects.lua. There we will find, e.g., local specification = { name = "extend", description = "scale glyphs horizontally", initializers = { base = initializeextend, node = initializeextend, } } local specification = { name = "squeeze", description = "scale glyphs vertically", initializers = { base = initializesqueeze, node = initializesqueeze, } } This seems hopeful: \definecolor [transparentgreen] [g=1,t=.7,a=1] \definecolor [transparentred] [r=1,t=.7,a=1] \definecolor [transparentyellow] [y=1,t=.7,a=1] \startTEXpage[offset=1em] \definefontfeature[scale][default][extend=yes,squeeze=yes] \hbox{\rlap{\definedfont[times @ 14pt]\transparentgreen Test}% \definedfont[times*scale @ 14pt]\transparentred Test} \stopTEXpage But there is no scaling of the character, extend=yes shifts the glyphs to the left, and squeeze=yes appears to do nothing at all. Here is a file collecting these experiments: https://www.dropbox.com/scl/fi/dggj3ypgjjeia1bo4eelb/test-scaling.tex?rlkey… https://www.dropbox.com/scl/fi/o2u1tsq515ycyoeup43qg/test-scaling.pdf?rlkey… IV. Objective: I need to be able to define a couple of characters in CLD -- glottal stops --, and add commands to scale and/or rotate a character without triggering a font switch. Again, writing this from scratch is beyond my current skill set - although I've recently started to study CLD. Something like this -- some of the semantics is almost certainly wrong and/or clumsy -) ============== -- ʿ ringhalfleft local function ringhalfleft (characters,target,base,accent) -- if not characters[target] then local data1 = characters[base] local data2 = characters[accent] if data1 and data2 then characters[target] = { -- "ʿ" height = data1.height, depth = (data1.depth or 0) + 0.5*(data2.height or 0), width = data1.width, unicode = target, commands = { { "slot", 0, 0 }, { "left", -0.5*(data2.width or 0) + 0.5*(data2.width or 0)}, -- { "down", 0.2*(data2.height or 0) + (data2.height or 0) }, { "up", 0.0*(data2.height or 0) + (data2.height or 0) }, { "slot", 0, 0x063, }, { "squeeze", 0.75*(data2.height or 0) }, { "extend", 0.75*(data2.width or 0) }, }, } end -- end end -- ʾ ringhalfright local function ringhalfright (characters,target,base,accent) -- if not characters[target] then local data1 = characters[base] local data2 = characters[accent] if data1 and data2 then characters[target] = { -- "ʾ" height = data1.height, depth = (data1.depth or 0) + 0.5*(data2.height or 0), width = data1.width, unicode = target, commands = { { "slot", 0, 0 }, { "left", -0.35*(data2.width or 0) + 0.5*(data2.width or 0)}, { "down", 0.0*(data2.height or 0) + (data2.height or 0) }, -- { "up", 0.0*(data2.height or 0) + (data2.height or 0) }, { "slot", 0, 0x063, }, { "squeeze", 0.75*(data2.height or 0) }, { "extend", 0.75*(data2.width or 0) }, }, } end -- end end local function initialize(tfmdata,value) if value then -- Hdotbelow(tfmdata.characters,0x02BF,0x063,0) -- ringhalfleft (tfmdata.characters,0x02BF,0x063,0x063) ringhalfright(tfmdata.characters,0x02BE,0x063,0x063) -- (i.e., tfmdata.characters,target,base,accent) -- hdotbelow(tfmdata.characters,0x1E25,0x068,0x2D9) end end local function scale (ringhalfleft,ringhalfright) for v in next, ringhalfleft do v.height = 0.75 * (v.height or 0) v.width = 0.75 * (v.width or 0) v.depth = 0.75 * (v.depth or 0) end for v in next, ringhalfright do v.height = 0.75 * (v.height or 0) v.width = 0.75 * (v.width or 0) v.depth = 0.75 * (v.depth or 0) end end local specification = { name = "glottalstops", description = "glottalstops", manipulators = { base = initialize, node = initialize, } } ============== Rotation for one of the characters is also needed. Here is an experimental test file: https://www.dropbox.com/scl/fi/wi81e23wg17k8jasqpeon/transliteration-glotta… https://www.dropbox.com/scl/fi/rca5v6uusyj6mogyklfpd/transliteration-glotta… Thank you in advance for your guidance. Best wishes Idris -- Professor Idris Samawi Hamid Department of Philosophy Colorado State University Fort Collins, CO 80523

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upload
by Hans Hagen 11 Aug '23

11 Aug '23

Hi, I uploaded a new lmtx. There are some new features that wil be revealed in the future (likely after the meeting) but here is one: \starttext \defineoverlay [test] [\color [blue] {TEST \inframed [foregroundcolor=red] {xxx} TEST}] \framed [background=test, foregroundstyle=\switchtobodyfont[small]] {test} \stoptext From now on many commands accept (properly) nested [] inside commands that use [] as fences (like the setup commands) where it makes sense. It is up to the user to decide to use {} (as before) or not but it is less error prone. It is now also possible to nest setups as in \starttext \startsetups one \startsetups [three] HERE \stopsetups \stopsetups \startsetups two \startsetups [three] THERE \stopsetups \stopsetups \setups[one] \setups[three] \setups[two] \setups[three] \stoptext As part of the ongoing improvements on math rendering we added some classic lm/cm kerns (between upperacse and periods / commas) in the goodie files. Some lowlevel manuals have been extended, explaining experimental 'named cross macro nesting parameter referencing' and 'constrained cq. retained assignments', but that is only relevant for those interested in overcoming some limitations in the traditional engines. 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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