November 2016 - ntg-context - NTG Mailing Lists

Nested modes and itemizations
by Christoph Reller 17 Nov '16

17 Nov '16

Hi, I have the following minimal not-working example: \starttext \startitemize \item One \startmode[modeA] \item Two \startitemize \startmode[modeB] % <- this \item Two A % <- does \stopmode % <- not work % \doifmode{modeB}{\item Two A} % <- this works \item Two B \stopitemize \stopmode \stopitemize \stoptext Note that both modeA and modeB are not defined and hence not enabled. When compiled with the latest version of ConTeXt MkIV, I get: Missing number, treated as zero. However, If I use the inline version \doifmode instead of the environment version \startmode \stopmode, then the example compiles without problem. I am afraid but this may be a bug. Cheers, Christoph

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Pdf info: width, height and rotation
by Procházka Lukáš Ing. 17 Nov '16

17 Nov '16

Hello, two questions about pages in PDF document (slightly refers to the code http://www.mail-archive.com/ntg-context@ntg.nl/msg57502.html) ---- local MyDocument = lpdf.epdf.load("A4.pdf") context.starttext() local pages = MyDocument.pages local dummy = MyDocument.pages[1] -- we need lua 5.2 in order to avoid this local nofpages = #MyDocument.pages context.starttabulate { "|c|c|c|" } context.NC() context("page") context.NC() context("width") context.NC() context("height") context.NR() for i=1, nofpages do local page = pages[i] local bbox = page.CropBox or page.MediaBox context.NC() context(i) context.NC() context(bbox[4]-bbox[2]) context.NC() context(bbox[3]-bbox[1]) context.NR() end context.stoptabulate() context.stoptext() ---- The sample gives: w ~ 842 pt, h ~ 595 pt Questions: 1. Shouldn't be width and height swapped? As the analyzed 'A4.pdf' has width of 210 mm and height of 297 mm, IOW width < height, whilst the cld code gives w > h (?!). 2. Is it possible to get rotation or orientation of the page (be "portrait" or "landscape" or "0" or "90" or so)? 3. Is the 'bbox' already affected by the page rotation/orientation? I mean - in the case page orientation is 90 or 270, is the width and height of 'bbox' swapped compared to the situation if page orientation was 0 (or 180)? Best regards, Lukas -- Ing. Lukáš Procházka | mailto:LPr@pontex.cz Pontex s. r. o. | mailto:pontex@pontex.cz | http://www.pontex.cz | IDDS:nrpt3sn Bezová 1658 147 14 Praha 4 Tel: +420 241 096 751 (+420 720 951 172) Fax: +420 244 461 038

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directlua in xml-environment
by Meer, Hans van der 17 Nov '16

17 Nov '16

Here is something I do not understand. Possibly I am doing something wrong. The following code is fine, within <<>> the current contextversion is printed. \def\mymacro{\directlua{tex.print("\\contextversion")}} \starttext calling mymacro <<\mymacro>>\par \stoptext However calling \mymacro from inside \startxmlsetup .. \stopxmlsetup does not work and results in <<\contextversion>>. I guess that the catcode regime in that environment is to blame. But how do I change that in order to get things working? I looked into the LuaTeX-manual where catcodes in relation to tex.print are treated, but in vain and could not find how to. What do I have to change? Hans van der Meer

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There is only german in the little text, why
by Ursula Hermann 16 Nov '16

16 Nov '16

Hy everybody! Thans for the Inputs yesterday. Now i have tried another one , but I have only german text in the PDF. Why? The text schould be german and greek in one text, but no colums. mainlanguage[de] \starttext Das Bin ich \gr {ἄ} \stoptext Thanks Uschi

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Combo fonts in MKIV
by Henri Menke 15 Nov '16

15 Nov '16

Dear list, On http://tex.stackexchange.com/a/314401/10995 I saw that LuaTeX has support for combo fonts where one can select different fonts and features for selected glyph ranges. Is there an interface in MKIV for that? I couldn’t find anything in fonts-mkiv.pdf. Cheers, Henri

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Another question about definerefereformat
by Benjamin Buchmuller 13 Nov '16

13 Nov '16

Here is another question, I was wondering about. What is the ConTeXt’s way to provide the “right” (or “left”) argument when \definereferenceformat[text=…] is set? Starting from this example: \starttext \definereferenceformat[infig][text={Figure }] \startplacefigure[reference=fig:A] Some figure. \stopplacefigure This is \infig[fig:A]. \stoptext I would like to output “This is Figure 1 a.” Obviously I can type “This is \infig[fig:A]\,a.” to get the desired result; however it does not seem very “ConTeXt-ish” to me as “This is \in{Figure}{a}[fig:A].” is much more concise. Is there the possibility to have something like \infig[right=a][fig:A]? Thanks again. Benjamin

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Setupreferencing[interaction=text] breaks referenceformat[text={…}]
by Benjamin Buchmuller 13 Nov '16

13 Nov '16

Hi, I’m not sure if this is the intended behaviour of the system, but I want to typeset “This is Figure 1.1 in Chapter A Good Story” in the attached minimal example. However, setting up the referencing interaction to text, this typesets “This is 1.1 in Chapter A Good Story”. The same holds true, when the reference format is not defined via \definereferenceformat, but also in \in{Figure}[fig:A]. Here is the minimal example: \starttext \setupreferencing[ left={}, right={}, interaction=text, % critical ] \definereferenceformat[infig][text={Figure }] \chapter[myreference]{A Good Story} \startplacefigure[reference=fig:A] Some figure. \stopplacefigure This is \infig[fig:A] in Chapter \about[myreference]. \stoptext Thank you very much for your help. Benjamin

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Problem with lucida
by Eric Detrez (Info) 12 Nov '16

12 Nov '16

I've got a curious problem with lucida. Characters have ascii code shifted by -1 (note the kerning) Minimal example : \usetypescript[lucida] \setupbodyfont[lucida,10pt,rm] \starttext abcdefgh \stoptext I join the pdf file with the result. Other fonts are fine in context, Lucida fonts are fine with Latex ...

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\xmlchainatt behaviour
by Meer, Hans van der 11 Nov '16

11 Nov '16

I might be doing wrong, but for now I have the strong impression that \xmlchainatt is at fault. It does not break the callchain as soon as a match is found. Also according the manual xml-mkiv, \xmlchainatt{#1}{testx}{no-test} should return "no-test" but returns nothing. I would very much helped if these macros react is I thin they should. Is this my fault? Hans van der Meer Minimal example % test chainttribute failure. \startxmlsetups demo:chainatt \xmlsetsetup{#1}{root|node|innernode}{demo:chainatt:*} \stopxmlsetups \xmlregisterdocumentsetup{demo}{demo:chainatt} \startxmlsetups demo:chainatt:root root: xmlatt <test> = <\xmlatt{#1}{test}>\crlf root: xmlchainatt <test> = <\xmlchainatt{#1}{test}>\crlf \xmlall{#1}{*} \stopxmlsetups \startxmlsetups demo:chainatt:node -- node: xmlatt test = <\xmlatt{#1}{test}>\crlf -- node: xmlchainatt <node> = \xmlchainatt{#1}{test}\crlf -- node: xmlchainattdef <node> = \xmlchainattdef{#1}{notest}{no-test}\crlf \stopxmlsetups \startxmlsetups demo:chainatt:innernode ---- innernode: xmlatt test = <\xmlattdef{#1}{test}{nono}>\crlf ---- innernode: xmlchainatt <test> = \xmlchainatt{#1}{test}\crlf \stopxmlsetups \startbuffer[chainatt] <root test="abc"> <node test="pqr"> <innernode test="xyz"/> </node> </root> \stopbuffer \starttext \ConTeXt-version=\contextversion\blank Manual on xml-mkiv page 22 on \tex{xmlchainatt} reads: returns the value of attribute NAME or empty if no such attribute exists; backtracks till a match is found\blank \xmlprocessbuffer{demo}{chainatt}{}\blank However, does not stop when backtracking finds "a match". \stoptext

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Chemical reaction...
by Willi Egger 10 Nov '16

10 Nov '16

I am busy to edit an older article in which there are a couple of chemical fromulas and reactions. However, I am stuck because the following throws me an error when uncommenting the line with “\chemical{2H^\oplus}{~waterstof (zuur)}” (something with $ inserted…) Another aspect is, that the {DEZ} does not appear. Further the {zinkion} and {ethan} appear not as text under the formula but as text next to it. \starttext \placeformula \startformula \chemical{(C_2H_5)_2Zn}{DEZ} \chemical{PLUS} % \chemical{2H^\oplus} {waterstof (zuur)} \chemical{GIVES} \chemical{Zn^{2\oplus}}{zinkion} \chemical{PLUS} \chemical{2(C_2H_6)}{ethan} \stopformula \stoptext Thank you for hints, what I am missing here… Kind regards Willi

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