May 2015 - ntg-context - NTG Mailing Lists

Verbatim text.
by John Culleton 12 May '15

12 May '15

The inline string quoted below produces a correct result but also generates an error message: \type{8 1/2 x 11} Is there a better way to handle this situation? -- John Culleton Wexford Press Free list of books for self-publishers: http://wexfordpress.net/shortlist.html Updated PDF e-book: "Create Book Covers with Scribus 1.4.5" coming soon at http://www.booklocker.com/!

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Changing font for math function
by Maggyero 12 May '15

12 May '15

Sorry, I did 3 typos in my previous post. — First typo: > 3. Using only \mathlabeltext with \setuplabeltext is also more consistent with the current \labeltext that works with \setuplabeltext. 3. Using only \mathlabeltext with \setupmathlabeltext is also more consistent with the current \labeltext that works with \setuplabeltext. — Second typo: > \define\function{\dosingleempty\dofunction} > \def\dofunction[#1]#2{% > \iffirstargument > \doifelse{#1}{limop}{\mathop{\mathlabel{#2}}}{\mathop{\mathlabel{#2}}\nolimits} > \else > \mathop{\mathlabel{#2}}\nolimits > \fi} \define\function{\dosingleempty\dofunction} \def\dofunction[#1]#2{% \iffirstargument \doifelse{#1}{op}{\mathop{\mathlabel{#2}}}{\doifelse{#1}{limop}{\mathop{\mathlabel{#2}}}{\mathop{\mathlabel{#2}}\nolimits}} \else \mathop{\mathlabel{#2}}\nolimits \fi} Plus these 2 definitions were not supposed to be in this post (I forgot to remove them during my tests). Nevertheless Hans could had them as well in math-ini.mkiv if he thinks the user should have access to this \function command, which is the ConTeXt version of the well known \operatorname and \operatorname* command in LaTeX. It provides: \starttext \startformula \function{lim}_{x\to a} f(x)\quad \function[op]{lim}_{x\to a} f(x)\quad \function[limop]{lim}_{x\to a} f(x) \stopformula \stoptext — Third typo: > \definemathcommand[arsinh][op]{\mathlabel{arsinh}} \definemathcommand[arsinh][nolop]{\mathlabel{arsinh}} Maggyero

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\big\lfloor and \big\lceil do not work
by Aditya Mahajan 12 May '15

12 May '15

Hi, This is based on another question on TeX.SX http://tex.stackexchange.com/q/242256/323 Minimal example: \starttext \startlines $\big\lfloor x \big\rfloor$ % No delimiters $\Big\lfloor x \Big\rfloor$ % No delimiters $\left\lfloor x \right\rfloor$ % Works \stoplines \stoptext Any idea what is happening? (This also fails with cambria, so something is wrong with the settings) On a related note, the following does not work either: \starttext $\left\langle x \right\rfloor$ \stoptext Not that one would ever use such a notation, but it is weird that it does not work. Aditya

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Changing font for math function
by Aditya Mahajan 11 May '15

11 May '15

Hi, There is a question on TeX.SX asking how to change the font of \sin, \cos, etc. http://tex.stackexchange.com/q/243893/323 I looked at the code, and there does not appear to be an easy solution. The \mathfunctionlabeltext command has \mathupright hard coded. One option is to keep this configurable using \setupmathematics, perhaps mfunction=(normal|italic|sans). In any case, I think that the current implementation is a bug. The default font for mathfunctionlabeltext should be typeset in the bodyfont. Aditya

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optional lpaths to merge \xmlsetsetup?
by Pablo Rodriguez 11 May '15

11 May '15

Hans, many thanks for the explanation with \xmlsetup. I have one more question for today concerning lpaths. I have the following commands: \xmlsetsetup{\xmldocument} {span[@label]} {xml:logo} \xmlsetsetup{\xmldocument} {span[contains(@class,'tex\letterpercent-logo')]} {xml:tex:logo} Is there no way to merge both in one? (The basic rule a|b doesn’t seem to work here, altough I may be missing everything :-(.) Many thanks for your help, Pablo -- http://www.ousia.tk

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external figure sizing
by Csikos Bela 11 May '15

11 May '15

Hello list members: I would like to make a photo montage (4x3 images on one page) using \placefigure, \externalfigure and combinations. The images should be scaled to the same size, eg to .25\textwith and .3\textheight so that the aspect ratios of the images are kept and the appropriate value is used for width or height. That is the smaller value from .25\textwith and .3\textheight is used for the image size. Using only \useexternalfigure[Fig1][1.jpg][width=.25\textwidth] may not give the correct result if the image requires size adjustment by height and vice versa. Defining both width and height results in exact resizing and the aspect ratio is not maintained. How can this be solved? Thanks, bcsikos

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understanding \xmlsetup
by Pablo Rodriguez 10 May '15

10 May '15

Dear list, to setup the language attribute in <div> and <span> elements from HTML, Hans kindly provided me with the following setup: \startxmlsetups xml:lang \begingroup \language[\xmlatt{#1}{lang}] \xmlsetup{#1}{xml:\xmltag{#1}} \endgroup \stopxmlsetups In order to be able to understand what \xmlsetup does, what would be the difference in replacing "\xmlsetup{#1}{xml:\xmltag{#1}}" with "\xmlflush{#1}" in the previous setup? Many thanks for your help, Pablo -- http://www.ousia.tk

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question about \xmlconcat
by Pablo Rodriguez 10 May '15

10 May '15

Dear list, I have the following sample: \startbuffer[demo] <doc> <h1 id="#myspecialid">Document Title</h1> <h2 class="author">John Doe</h2> <h2 class="author">James Doe</h2> <h2 class="author">Jane Doe</h2> </doc> \stopbuffer \startxmlsetups xml:initialize \xmlsetsetup{#1}{doc|h1}{xml:*} \xmlsetsetup{#1} {h2[contains(@class,'author')]} {xml:document:author} \stopxmlsetups \xmlregistersetup{xml:initialize} \startxmlsetups xml:doc \xmlflush{#1} \stopxmlsetups \startxmlsetups xml:h1 \title{\xmlflush{#1}} \stopxmlsetups \startxmlsetups xml:document:author \xmlconcat{#1}{/all()}{\\} \xmlflush{#1} \stopxmlsetups \starttext \xmlprocessbuffer{main}{demo}{} \stoptext I have tried to use \xmlconcat in xml:document:author. I can’t get it working. What am I missing there? All I hwant is to have a between each h2[@class='author']. Many thanks for your help, Pablo -- http://www.ousia.tk

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bug in xtables?
by Pablo Rodriguez 09 May '15

09 May '15

Dear list, the following sample shows a weird issue: \starttext \startbuffer[somextable] \startxtable[option=stretch, align=center] \startxrow \startxcell[width=.2\textwidth] a \stopxcell \startxcell b \stopxcell \startxcell c \stopxcell \startxcell[width=.2\textwidth] d \stopxcell \stopxrow \stopxtable \stopbuffer \startxtable[option=stretch, align=center] \startxrow \startxcell a \stopxcell \startxcell b \stopxcell \startxcell c \stopxcell \startxcell d \stopxcell \stopxrow \stopxtable This is the next paragraph. \getbuffer[somextable] This is the next paragraph. \stoptext If the width is specified for some xcells (but not all), extra blank space will be added after the xtable when got from a buffer. Isn’t it a bug? BTW, shouldn’t the xcells with no width specified be wider than the ones that have [width=.2\textwidth]? (I may be missing something, because I think the width for the xcells with no specified width should be .3\textwidth.) Many thanks for your help, Pablo -- http://www.ousia.tk

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issue with \doifdefined
by Pablo Rodriguez 09 May '15

09 May '15

Dear list, I have the following sample: \def\abcde{123} \starttext \doifdefinedelse{\abcd}{defined}{undefined} \stoptext \doifdefined crashes when the command isn’t defined. Sorry, but isn’t this command supposed to check whether the command is defined or not? Many thanks for your help, Pablo -- http://www.ousia.tk

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