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arguments to ctxlua
by Hans van der Meer 30 Mar '10

30 Mar '10

When I have a Lua function with 2 arguments: \startluacode function f(a,b) ... \stopluacode called through: \def\callf#1#2{\ctxlua{f("#1","#2")}} and do this actually with one argument: \callf{one} then I find that the absent argument b in f(a,b) is not nil but a string of length 1. That is a bit of a nuisance because I would like to use the Lua idiom: function f(a,b) local b = b or default but that is frustrated by the behaviour shown. Is this an artifact of either luatex or ConTeXt? Can it be avoided such that in this case b will be nil? Hans van der Meer

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Beta 2010.03.30: mkiv and \dots
by Otared Kavian 30 Mar '10

30 Mar '10

Hi Hans, Thanks for fixing so quickly the issue with the release 2010.03.29. Now with the latest release, that is ConTeXt ver: 2010.03.30 12:47 MKIV fmt: 2010.3.30 int: english/english there is an issue with \dots: mkiv considers that this should be in mathmode, while until yesterday it didn't complain at all. Minimal example: %%%%%%% \starttext Hello Hans\dots \stoptext %%%%%%% ConTeXt complains and stops by saying: ! Math error: parameter \Umathquad\displaystyle is not set. \dots ...else $\mathsurround \zeropoint \ldots \,$ \fi The same example works fine with mkii. Thanks again for your attention: OK

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beta: math problem (mkiv)
by Peter Rolf 30 Mar '10

30 Mar '10

Hi, I just tried the latest beta and run into this error... [..] (C:/tmp/context/tex/texmf-context/tex/context/user/cont-sys.rme (C:/tmp/context/ tex/texmf-context/tex/context/base/type-def.mkiv) (C:/tmp/context/tex/texmf-cont ext/tex/context/base/type-lua.tex) (C:/tmp/context/tex/texmf-context/tex/context /base/type-siz.tex (C:/tmp/context/tex/texmf-context/tex/context/base/type-siz.m kiv)) (C:/tmp/context/tex/texmf-context/tex/context/base/type-otf.tex (C:/tmp/co ntext/tex/texmf-context/tex/context/base/type-otf.mkiv))) system : math.top loaded (math.top) fonts : preloading latin modern fonts !fonts : goodie file 'lm-math.lfg' is not found !define font : font with name LMMath7-Regular is not found !define font : unknown font LMMath7-Regular, loading aborted !define font : unable to define LMMath7-Regular as \*modern7ptmmmr33* !define font : font with name LMMath9-Regular is not found !define font : unknown font LMMath9-Regular, loading aborted !define font : unable to define LMMath9-Regular as \*modern9ptmmmr22* !define font : font with name LMMath12-Regular is not found !define font : unknown font LMMath12-Regular, loading aborted !define font : unable to define LMMath12-Regular as \*modern12ptmmmr11* bodyfont : 12pt rm is loaded language : language en is active {C:/tmp/context/tex/texmf-context/fonts/map/pdftex/context/mkiv-base.map} systems : begin file math at line 1 ! Math error: parameter \Umathquad\displaystyle is not set. l.3 $\downarrow$ ? test is simply \starttext $\downarrow$ \stoptext Peter

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luacode inside xmlsetups
by Hans van der Meer 30 Mar '10

30 Mar '10

The following works outside xmlsetups but not inside it. It seems to bolt on the % with: ! LuaTeX error <main ctx instance>:1: ')' expected near '<eof>'. <inserted text> ....pitex.print("pi = " .. (x - x} This in spite of the wiki telling me: To circumvent this problem, ConTeXt defines a environment called \startluacode ... \stopluacode. This sets the catcodes to what one would expect in lua. Basically only \ has its usual TeX meaning, the catcode of everything else is set to other. So, for all practical purposes, we can forget about catcodes inside \startluacode ... \stopluacode. The code is: \startxmlsetups xml:mycommand \startluacode local x = math.pi tex.print("pi = " .. (x - x\%0.01)) \stopluacode \stopxmlsetups When I try to escape the % with \% the result is no better: ! LuaTeX error <main ctx instance>:1: ')' expected near '\'. <inserted text> ...rint("pi = " .. (x - x\%0.01))} Is it not possible to directly use Lua inside these setups? If do, why the nonconforming behaviour? Hans van der Meer

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'#' sign in hyphenatedurl
by Vyatcheslav Yatskovsky 30 Mar '10

30 Mar '10

Hello, I noticed that in \hyphenatedurl the '#' sign should be escaped, otherwise strange result occurs. \startext \hyphenatedurl{http://en.wikipedia.org/wiki/Differential_algebraic_equation#Numerical_solution_of_DAEs} \hyphenatedurl{http://en.wikipedia.org/wiki/Differential_algebraic_equation\#Numerical_solution_of_DAEs} \stoptext is it intended to be so? Vyatcheslav

1 0

Stack overflow
by Alain Delmotte 30 Mar '10

30 Mar '10

Hi! I just upgraded ConTeXt minimals (from the status-of-update.lua file: ["info"]={ ["comment"]="this file contains the settings of the last 'mtxrun --script update ' run", ["count"]=3, ["date"]="2010-03-20 09:14:09", ["runtime"]=90.688, ["version"]=0.1, }, ) When I want to compile the file on which I am working, I get: C:\Programmes\ConTeXt\tex\texmf-mswin\bin\mtxrun.lua:2161: stack overflow So, I am stuck. What is the solution? Alain

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switchtpbodyfont values
by Hans van der Meer 30 Mar '10

30 Mar '10

In font-ini I see two parametrized fontsize changes on \switchtobodyfont: 'big' and 'small' (the latter seen defined as \tfx); apart from 'global' which as I understand returns to the original size of \setupbodyfont. Can there be a 'tiny' (corresponding to \tfxx) as another option? I often have use for two steps smaller. Instead of reverting to an explicite pointsize for the smallest of the two, use of big > global > small > tiny would be more general. Just a modest wish. Hans van der Meer

1 0

Which packages?
by Procházka Lukáš Ing. - Pontex s. r. o. 30 Mar '10

30 Mar '10

Hello, I'm new to ConTeXt; I've been working with LaTeX but I'd like to try ConTeXt due to some reasons. The question is - - is there a manual, web site or something where comparison of LaTeX/ConTeXt packages/modules would be done? I'm interested how to include a part of a text file and how to insert some pages of another .pdf file. Normally I was using the fancyvrb (\VerbatimInput) + option "firstline=..." and "lastline=..." respectively and pdfpages (\includepdf} + "pages=..." LaTeX packages; what's the equivalent for them in ConTeXt? Is there a place where to study module/package "similarities"/"equivalences"? Thank you in advance. Regards, Lukas

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Beta version 2010.03.29 18:49: mkiv broken?
by Otared Kavian 29 Mar '10

29 Mar '10

Hi all, After reading a message of Hans to Wolfgang Schuster, saying that there was a new beta, I updated the minimals as usual, and it seems that mkiv is broken now, while mkii works fine: ConTeXt ver: 2010.03.29 18:49 MKII fmt: 2010.3.29 int: english/english Has something changed in first-setup.sh, or the way mkiv should work? I am sure Mojca has an idea on the issue :-) Best regards: OK

1 0

missing \xmldoifelseempty's
by Hans van der Meer 29 Mar '10

29 Mar '10

Why are \xmldoifelseempty and \xmldoifelseselfempty commented out in lxml-ini.mkiv? I thought to make good use of them. Now I get the error: ! Undefined control sequence. \@@su:xml:cdcase:recording #1->\xmldoifelseempty {#1}{}{}{Recording: Hans van der Meer

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