- ntg-context - Mailing Lists

Margin text and multiple columns
by Marc Rummel 23 Aug '12

23 Aug '12

Hello, I have a problem with margin texts in combination with multiple columns using mkiv. I want to set a text in the outer margin of a double sided document. This works well using \inouter as seen in the following document: --- \setuppagenumbering[alternative=doublesided] \starttext \inouter{Text in Margin} \input knuth \page[yes] \inouter{Text in Margin} \input knuth \stoptext --- But fails, when I use it in combination with multiple columns. Then the margin text of the odd pages is set in the second column (probably in the margin of the first column) instead of the margin of the whole page. --- \setuppagenumbering[alternative=doublesided] \starttext \inouter{Text in Margin} \startcolumns \input knuth \stopcolumns \page[yes] \inouter{Text in Margin} \startcolumns \input knuth \stopcolumns \stoptext --- I hope someone can help me. Best wishes, Marc

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mp
by Hans Hagen 23 Aug '12

23 Aug '12

Hi, In the next version you can run mp files: % test.mp beginfig(1) ; fill fullcircle scaled 10cm withcolor 0.5red ; fill fullcircle scaled 4cm withcolor 0.5white ; endfig ; beginfig(2) ; fill fullcircle scaled 10cm withcolor 0.5green ; fill fullcircle scaled 5cm withcolor 0.5white ; endfig ; beginfig(3) ; fill fullcircle scaled 10cm withcolor 0.5blue ; fill fullcircle scaled 6cm withcolor 0.5white ; endfig ; as follows: context test.mp and you'll get a pdf file with 3 pages that can be included with \externalfigure[test][page=1] \externalfigure[test][page=2] \externalfigure[test][page=3] or used in different ways. Alteratively you can run % test.tex \starttext \processMPfigurefile{figures-001.mp} \stoptext In which case you can add styling directives in the preamble. Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------

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Code in contextref-env.tex
by john Culleton 22 Aug '12

22 Aug '12

In the file contextref-env.tex I find code like the following: \setupsectionblock[\v!frontpart] [\c!page=\v!yes] \setupsectionblock[\v!bodypart] [\c!page=\v!yes] \setupsectionblock[\v!appendix] [\c!page=\v!yes] \setupsectionblock[\v!frontpart] [\c!before=,\c!after=] I have no idea what the sequences like "\v!"and "\c!" etc. mean. Are they references to modes? -- John Culleton Free list of books for self-publishers: http://wexfordpress.net/shortlist.html Police Procedural and Expose: "Death Wore Black" "Create Book Covers with Scribus" http://www.booklocker.com/books/4055.html

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Creating TeX dimensions and counters registers directly in Lua
by Jaroslav Hajtmar 22 Aug '12

22 Aug '12

Hello all, Is it possible to create a new dimension ConTeXt register directly in Lua, or I have to first create the ConTeXt dimensional register and then to subsequently assign it a value? Here is example: \starttext \newdimen\mydimension \directlua{tex.setdimen("mydimension", 123)} \stoptext works fine, but all like: \starttext \directlua{tex.print([[\newdimen\myotherdimension]])} \directlua{tex.setdimen("myotherdimension", 123)} \directlua{tex.newdimen("myotherdimension")} etc... \stoptext fails. In addition, I am interested in whether directly in Lua to create a new counter as in the previous. \starttext \newcount\mycount \directlua{ tex.setcount("mycount",125) } again works, but anything like: \starttext \directlua{tex.print([[\newcount\myothercount]])} \directlua{tex.newcount("myothercount")} etc... \stoptext again fails... Is there any source or examples to study anything about it? Thanx Jaroslav

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Ctx ... Lua
by Procházka Lukáš 22 Aug '12

22 Aug '12

Hello, sometimes in this mail discussion I'm encountering a Ctx/Lua command which has been unknown for me or I would use other (known) commands to do the job. So - would it be possible to explain - what's the difference/advantage btw \directlua and \ctxlua - what \ctxcommand{} does - what \cldcontext{} does? TIA. Lukas

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Lua: document v. userdata
by Rogers, Michael K 22 Aug '12

22 Aug '12

In a recent thread, Hans used the document namespace, where I (naively) expected userdata: On Aug 22, 2012, at 6:32 AM, Hans Hagen wrote: \ctxlua{document.myluadimension = "200pt"} Is there a reason not to use userdata.myluadimension? Or is document.myluadimension safe, because myluadimension is almost certainly not an entry used by ConTeXt? Is using document.myluadimension better "style" here, in some sense? Somewhere I had gotten the idea that if a ConTeXt user wanted to store something in Lua, they ought to store it in the userdata namespace. Thanks, Michael ________________________________ This e-mail message (including any attachments) is for the sole use of the intended recipient(s) and may contain confidential and privileged information. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this message (including any attachments) is strictly prohibited. If you have received this message in error, please contact the sender by reply e-mail message and destroy all copies of the original message (including attachments).

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Struggling with ConTeXt
by Olivier Binda 22 Aug '12

22 Aug '12

Hello I'm trying to port a big 300+ pages math course full of macros from plain XeTEX to ConTeXt mark IV (ubuntu 12.04+ stand alone beta) and I'm having some difficulties, could you please help ? My questions : 1) does lxml.att("#1","some tag") really work ? the next snipet doesn't work for me: \startluacode function set(node) p = lxml.att(node,"p") -- or p = lxml.att(lxml.id(node),"p") end \stopluacode \startxmlsetups xml:section \ctxlua{set("#1")} \stopxmlsetups it looks like it returns the p attribute of the node before #1 the following snipet works though (which is strange because I looked in the context source and it gives \def\xmlatt#1#2{\ctxlua{lxml.att("#1","#2")}}...) \startxmlsetups xml:section \ctxlua{p = \xmlatt{"#1","p"}} \stopxmlsetups 2) I'm trying to export to xml and have set \setupbackend[export=yes, xhtml=yes, css=mkiv-export.css] But a) my Metafun/Tikz pictures aren't exported to svg :/ b) the exported xml has namespaces problems (like error on line 63 at column 20: Namespace prefix m on math is not defined error on line 64 at column 22: Namespace prefix m on mrow is not defined) What am I doing wrong ? (I'm compiling with "context mydoc.tex") Is there some \csname tex4ht\endcsname command or some other directive that I should use to get my xml export right ? Am I missing some namespace commands (there are lots of m:math and m:mrow mathml tags int the exported xml source, this smells like a tex4ht issue) 3) I have defined some framed text with metafun overlays (like in the Context manual) and I'm trying to type something like \inmargin{some label} \startMyFramedText...\stopMyFramedText Yet, the text in the margin is after the framed text :( (fiddling with the "location" setting (low, ..) doesn't allow me to have the in margin text right next the top of the framed text I somehow found a dirty workaround with typing a blank space \defineframedtext[Property][frame=off,background=OverlayProperty,before={}] and \inmargin{some label}\noindent\startMyFramedText...\stopMyFramedText but it's not really satisfying. (hate to lose vertical space with wandering blank spaces) Is there a better way ? 4) I'm trying to port the following TeX code to ConTeXt $$\eqalign{x&=1\cr y&=2\cr}\qquad \hbox{haha}$$ it looks like \startformula\startalign.. doesn't allow me to do that I somehow managed to have it by typing \startformula \vcenter{\starttabular[|rM|lM|] \NC x \NC =1\NC\NR \NC y \NC =2\NC\NR \stoptabular}\qquad\text{haha} \stopformula the pdf export is fine, but the xml export is awfull (because of \vcenter I guess) a) Is there a way to use tables inside math mode alongside other stuff (would be handy) ? b) what is the correct way to type the previous text, so the pdf and xml are fine in Context ? Best regards Olivier... really enjoying utf, xml, lua inside TeX as well as other nice ConTeXt features

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subformulas: error in latest beta
by Andreas Mang 21 Aug '12

21 Aug '12

Dear all, I am having problems with subformulas. The following example does not display a subnumber (i.e. I get (1) and (2) instead of (1a) and (1b)): %%%%%%%%%%%%% start example %%%%%%%%%%%% \starttext % from % does not display "subformula numbers"" \placesubformula \startformula \startalign \NC a_1 x + b_1 y \NC = c_1 \NR[+][a] \NC a_2 x + b_2 y \NC = c_2 \NR[+][b] \stopalign \stopformula %%%%%%%%%%%%% stop example %%%%%%%%%%%%% This example is taken from http://dl.contextgarden.net/myway/mathalign.pdf page 6 I am not quite sure for how long this is not working. I have been using the following alternative, which used to work but now gives me an error with the latest beta (ConTeXt ver: 2012.08.16 22:20 MKIV fmt: 2012.8.18): %%%%%%%%%%%%% start example %%%%%%%%%%%% % the following used to work in an earlier version \startsubformulas[eq:ax=b] \placeformula \startformula \startalign \NC a_1 x + b_1 y \NC = c_1 \NR[+][a] \NC a_2 x + b_2 y \NC = c_2 \NR[+][b] \stopalign \stopformula \stoptext %%%%%%%%%%%%% stop example %%%%%%%%%%%%% Any suggestions? Cheers, Andreas

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Stable versions of MkIV
by Sietse Brouwer 21 Aug '12

21 Aug '12

Hi all, The "current stable" MkIV, the MkIV on the wiki, and the MkIV in TeX Live are quite different things. MkIV 2011.005.18 -- result of first-setup.sh --current MkIV 2011.10.008 -- version on the wiki MkIV 2012.005.29 -- version in TeX Live 2012, AFAICT (Mojca?) 1. Why not declare the version in TeX Live to be stable? I know Mojca puts some work into making it as bug-free as possible. 2. Perhaps have the MkIV on the wiki track the MkIV in TeXlive? We can show off reasonably-recent features, it looks more up-to-date, it's a nice clear answer to "should we update already?", and it ensures that we update to reasonably bug-free versions. 3. Is there a list of past stable versions somewhere? I can't find one, and without it the ability to go to a specific stable version with `sh ./first-setup.sh --context=date` seems a bit useless. (Can't really imagine a use in general, though.) 4. (Less important.) context.mkiv defines \contextversion as e.g. `2012.08.11 14:11`, but \contextversionnumber in mult-ini.mkiv still prepends a zero to the month or day. (It checks whether 08 < 10, which is true even if the leading zero is present.) This causes the extra zeros you saw in the version numbers above. Can this be changed without breakage ensuing? I expect that nobody depends on it over the more direct \contextversion. (People that do use \contextversionnumber have a problem anyway, because the version strings it produces in October-December will always turn out 'earlier/older' than the ones produced in January-September, regardless of year.) Cheers, Sietse

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test for (negative) number
by Peter Rolf 21 Aug '12

21 Aug '12

Hi, I used '\doifnumberelse' to validate some macro parameters (angle). Sadly it does not work with negative numbers. Is there a similar macro, that also supports negative values? Example: \doifnumberelse {45}{yes}{no}% yes \doifnumberelse{-45}{yes}{no}% no Greetings, Peter

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