August 2010 - ntg-context - NTG Mailing Lists

Palatino math in MKII/XeTeX?
by Riobard 02 Aug '10

02 Aug '10

Hi, I'm wondering how I can use Palatino for math in MKII/XeTeX? The following works in MKIV but not in MKII (still get Computer Modern for Math, though main text is in Palatino). Thanks very much! Rio

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ConTeXt vs. LaTeX -> XML/MathML -> XHTML/SVG/PNG -> ePub
by Grant W. Petty 02 Aug '10

02 Aug '10

On Mon, Aug 2, 2010 at 10:10 AM, Grant W. Petty <grantwp3(a)gmail.com> wrote: > I am trying out ConTeXt for the very first time, hoping to assess > whether it's worth re-tooling from LaTeX for authoring scientific > textbooks. > To elaborate on this comment which I made in another thread, I have written and self-published two university-level atmospheric science textbooks in LaTeX which are doing quite well by the standards of my small field. I am now also contracting to publish textbooks for other authors. I am very interested in eventually reformatting my own existing books, as well as future books, as documents that can be both printed as professional-quality bound textbooks as well as distributed as e-books -- for example ePub format and/or XHTML. The principle technical hurdle seems to be posed by the heavy use of mathematical equations. I want the math in the electronic versions to be very clean and scalable (e.g., SVG; eventually MathML as e-readers do a better job of supporting it). While there are programs like TeX4HT and LaTeXML that convert LaTeX source to XML/MathML, they seem to have trouble with unfamiliar packages and macros, and the math rendering seems quite imperfect as well (though I can't yet tell whether that's a problem with the conversion to MathML or rather with current e-readers imperfect support for MathML). My question is whether anyone has insight into the relative strengths of LaTeX vs. ConTeXt as an authoring environment in the specific case that the author wants high-quality multi-format outputs for print and electronic distribution. An example workflow I could imagine would be ConTeXT or LaTeX source -> XML/MathML (DocBook?) -> PDF or XHTML with math encoded as MathML and/or SVG and/or PNG -> ePub with high-quality math readable on various commercial readers I'm quite new to this subject matter, having only begun to learn about e-publishing formats a couple of weeks ago, so I'll welcome any advice, however basic. It's my impression, by the way, that ConTeXT does not directly support AMSMath, which might mean having to not only rewrite a lot of existing source but also to re-learn how to write math. Thanks, Grant

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Page number conversion not working in MKIV?
by Riobard 02 Aug '10

02 Aug '10

Hi, The following code is expected to produce roman numerals "i" in the footer. I always get the number "1" instead. Anybody knows what I'm doing wrong? Thanks very much! \starttext \setuppagenumber[number=1] \setuppagenumbering[conversion=romannumerals,location=footer] some text \stoptext Rio

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Errors with MacTeX/TeXLive installation
by Grant W. Petty 02 Aug '10

02 Aug '10

I am trying out ConTeXt for the very first time, hoping to assess whether it's worth re-tooling from LaTeX for authoring scientific textbooks. I am using a fresh installation of TeX Live 2009 (installed via MacTex on a MacBook running Mac OS X 10.6), and I'm trying to process a sample file I downloaded from one of the ConTeXt web pages. Unfortunately, the process generates a couple of cryptic warnings ("Lua binary way out of date") and a fatal error ("can't find ...dcc/formats/cont-en.luc"). I wonder if someone can examine the input file and the log file (both attached) to help me understand what I have to do to clean things up and, if possible, why the TeX Live ConTeXt configuration doesn't work correctly "right out of the box" to begin with. Thanks, Grant

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new current
by Hans Hagen 02 Aug '10

02 Aug '10

Hi, I uploaded a current release that matches luatex 0.61 beta (released a few days ago). The release notes will follow. Apart from a couple of fixes in mkiv the main additions are tagged pdf and the possibility to include pages from pdf documents with hyperlinks which is controlled by the 'interaction' key (given that interaction is enabled). \externalfigure[file.pdf][page=1,scale=700,frame=on,interaction=yes] This is experimental code and it will be extended in the future. Also more control will provided. Future releases will also deal with layers in embedded images (all within reasonable bounds). The current code still supports older mplib although so this current might work with alpha 0.61 versions. We expect a next beta if luatex in a couple of weeks so there will for sure be beta releases of context in the meantime. 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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CSV parser do not processed macro.
by Jaroslav Hajtmar 01 Aug '10

01 Aug '10

Hello all, to solve my problem I need to find why my function ParseCSVdata incorrectly parses strings stored in a macro. It's including possibly the reason why do not work properly Mojca database module as I wrote in a recent mail. It seems to enter a string function, which is not my function to find a separator. Thanx Jaroslav Here is my minimal example: \startluacode function ParseCSVdata(string2parse, separator, leftdelimiter, rightdelimiter) -- Funkce pro "rozparsování" jednotlivých záznamů (řádků) CSV tabulky -- Vstupní textový řetězec (načtený řádek) je v místech výskytu separátoru "rozsekán" na jednotlivá pole -- Jediný povinný vstupní parametr je 'string2parse'. Při nenastavení zbývajících tří parametrů se jako separátor a oddělovače použijí buď globální proměnné Sep, Ld a Rd nebo se použijí defaultní hodnoty -- Výstupem je pole oddělených řetězců -- Když nejsou globální proměnné Sep, Ld a Rd nastaveny uživatelem, nastaví se na defaultní hodnoty. Uživatel si může defaultní hodnoty libovolně změnit podle toho, jaké hodnoty používá ve svých aplikacích nejčastěji Sep = (Sep == nil) and UserCSVSeparator or Sep -- Pokud není glob. neznámá Sep nastavena, použije se defaultní hodnota ';' (středník). Ld = (Ld == nil) and UserCSVLeftDelimiter or Ld -- Pokud není glob. neznámá Ld (left delimiter) nastavena, použije se defaultní hodnota '' (prázdný řetězec) Rd = (Rd == nil) and UserCSVRightDelimiter or Rd -- Pokud není glob. neznámá Rd (right delimiter) nastavena, použije se defaultní hodnota '' (prázdný řetězec) -- Nastavení hodnot parametrů, které nejsou při volání funkce nastaveny tj. při volání funkce ParseCSVdata(string2parse) s pouze jedním parametrem local separator = (separator == nil) and Sep or separator -- při nenastavení separátoru se použije local leftdelimiter = (leftdelimiter == nil) and Ld or leftdelimiter local rightdelimiter = (rightdelimiter == nil) and Rd or rightdelimiter -- A jdeme na vlastní zpracování řetězce ... local result={} if leftdelimiter ~= '' and rightdelimiter ~= '' then -- Když jsou položky v řádku vymezeny levým i pravým delimiterem (tj. jakousi závorkou) např. "pole1";"pole2" nebo {pole1};{pole2} .. atd. string.gsub(string2parse, leftdelimiter.."(.-)"..rightdelimiter, function(a) table.insert(result,a) end ) -- Je vidět, že v tomto případě ani nezáleží na separátoru, jednotlivé uzávorkované řetězce se od sebe oddělí else -- Když je pouze separátor polí bez vymezujících znaků - delimiterů (tento případ bohužel neumožňuje použití separátoru jako samostatného znaku v nějakém poli ) result=string.split(string2parse,separator) -- pak stačí vstupní řetezec jen "vysplitovat" tj. rozsekat na samostatné části end return result -- Funkce vrátí pole result obsahující oddělená jednotlivá pole řádkového CSV záznamu end function pars(inppar) tex.sprint("input parametr (string): "..inppar.."\\par") CSVLine=ParseCSVdata(inppar,',','','') tex.print(table.maxn(CSVLine).." item(s) \\par") for i = 1, table.maxn(CSVLine) do tex.sprint(i..". "..CSVLine[i].."\\par") end tex.sprint("\\blank[big]") end \stopluacode \def\printaction{x,y,z,u,v} \starttext \startluacode pars("a,b,c,d") pars("\\printaction") \stopluacode \stoptext

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Expansion of TeX macros inside the Lua function
by Jaroslav Hajtmar 01 Aug '10

01 Aug '10

I came across an interesting issue (for me), which is probably the beginner, but accompanied me for a long time. The problem is probably that I do not understand very well the principles of operation LuaTeX and while I want to do more complex things. I think many beginners will love it when someone indicate solutions. My problem is that I need in my complex application, evaluate parameters of Lua functions, which are a TeX macros (respectively their expanded contents). I did not discover the possibility of expansion of TeX macros, which is a parameter Lua function. Here are three examples in which I demonstrate the problem. 1. In first example is function parameter a text string. \ctxlua{pars('a,b,c,d,e')} Everything works as expected - evaluation of parameter was carried out OK - comma separator was found and replaced. 2. In second example is a function parameter a TeX macro \printaction. Macro expanded before entering the function. Everything works as expected too - comma separator is found and replaced: \ctxlua{pars('\printaction')} 3. The third example of my most interesting. Function parameter in example is a TeX macro \printaction which not expanded, respectively expanded only when I printing it to TeX. Parameter of function is string "\printaction" in which it is futile to look for a comma separator. Comma not be found, although the content of macro face that is so. \ctxlua{pars('\\printaction')} Is there a possibility for this case, as in some way to save to Lua variable content of macro (of course expanded)? I note that this example is important for me and I would like there to be a Lua function (eg "expandtostring"), which expanded a TeX macro into variable until inside function Lua. I hope the my example (with comments) will be comprehensible and I apologize if the solution is too trivial. I searched dozens of examples, but I come across something similar. Thanx very much - Jaroslav Here is example: \startluacode function pars(inppar) strpar=tostring(inppar) -- here I need a function "expandtostring(inppar)" gsubstr=string.gsub(strpar, ',', ';') tex.print("Input parametr (string or macro): ") tex.write(inppar) tex.print("\\par") tex.print("Content of string (macro): "..strpar) -- There will always be expansion tex.print("\\par") tex.print("Length string (macro): "..string.len(inppar).."\\par") tex.print("Length of content : "..string.len(strpar).."\\par") tex.print("Occurrence of the commma separator: "..gsubstr.."\\par") end \stopluacode \def\printaction{x,y,z} \starttext Example 1) Function parameter in first example is a text string. Everything works as expected - comma separator is found and replaced: \ctxlua{pars('a,b,c,d,e')} \blank[big] Example 2) Function parameter in second example is a TeX macro \backslash printaction which expanded before entering the function. Everything works as expected too - comma separator is found and replaced: \ctxlua{pars('\printaction')} \blank[big] Example 3) The third example of my most interesting. Function parameter in example is a TeX macro \backslash printaction which not expanded, respectively expanded only when I printing it to TeX. Parameter of function is still string "\backslash printaction" in which it is futile to look for a comma separator. Comma not be found, although the content of macro face that is so. Is there a possibility for this case, as in some way to save to Lua variable content of macro (of course expanded)? \ctxlua{pars('\\printaction')} \stoptext

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part problems
by Henning Hraban Ramm 01 Aug '10

01 Aug '10

(MkIV, latest beta) I'm trying to get a title page for book parts: \def\FPart#1#2{#2} \setupheads [align=right, tolerance=verytolerant, before=\nohyphen\startlinecorrection, after=\stoplinecorrection, number=no] \setuphead[part][command=\FPart, page=right, style={\bfc}] \part{My First Part} But the page is empty, also without "command", also with a suitable "textcommand", also without "style". Next problem: In my ToC I get "Part My First Part". (Or "Part 1 My First Part", if I enable the number.) How can I suppress that piece of text ("Part")? Generally, what's the best approach to get a fixed font size for some titles, e.g. the part title should have 64 pt. Should I use \setuphead[part][before={\switchtobodyfont[64pt]}] ? Greetlings from Lake Constance! Hraban --- http://www.fiee.net/texnique/ http://wiki.contextgarden.net https://www.cacert.org (I'm an assurer)

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tex in context
by R. Bastian 01 Aug '10

01 Aug '10

Hello, is there a way to insert plain tex code in context source ? example: \startTEX \font\ttbold=cmbtt10 at 12pt .... {\ttbold texte monospace en gras} ... \stopTEX -- René Bastian www.pythoneon.org

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CLD Documents
by Martin 'golodhrim' Scholz 01 Aug '10

01 Aug '10

Hi Hans, I like the way how one can write ConTeXt-Lua-Documents, works really good, but I tried to load a module but there seems to be no solution for this included. Is there a way to include this in a CLD-Document? Thanks -- --- Martin 'golodhrim' Scholz Auf dem Sattler 4 34516 Ederbringhausen Phone: +49 6454 799623 mobile: +49 176 63301749 Fax: +49 6454 e-Mail: scholz.m82(a)googlemail.com BOFH Excuse #260: We're upgrading /dev/null

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