- ntg-context - Mailing Lists

Re: [NTG-context] When to migrate from MKII to MKIV?
by Dave 04 Feb '09

04 Feb '09

On Tue, Feb 3, 2009 at 5:14 PM, Mojca Miklavec < mojca.miklavec.lists(a)gmail.com> wrote: > If you neglect the bugs and problems, transition should be painless - > only typescripts need to be updated, but once you do that, your > documents could even work with both mkii and mkiv. I recall that it took me a good week of work in the evenings to get my regular and math typescripts to work correctly with MKII. I'm happy with the PDF output of the papers/notes, lecture notes I write for work but I will need to switch to OTF in the not-too distant future. My university has a site license for various Adobe pro fonts but they are only being distributed in OTF now. The ones I currently use were derived from manipulating a set of multiple-masters a few years ago. > Btw: math is a big mess at the moment; you can expect any kind of bugs > related to maths with next beta version, but you can become a beta > tester :) > I do physics/chemistry with a lot of equations so incomplete math support is really a deal breaker for me. I recall there being issues with some aspects of bibliography support and a lack of fonts when I last tried the Minimal package. Again, deal breakers for me so I reverted to the ConTeXt included in the 2008 version of texlive with a few bug-fixes from a more recent beta. I think it would be very helpful to most ConTeXt 'users' if there were a wiki page that spelled out the current status of MKIV exactly and listed which features of MKII work, which are buggy, and which are work in progress. Something a little more high-level than the release notes and this mailing list ;) Thank you to everyone who contribute here. I often find myself amazed at the speed at which ConTeXt develops and very much look forward to the end of font voodoo as promised by MKIV.

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Error with TrueType flavor OpenType fonts with .otf extension
by Khaled Hosny 04 Feb '09

04 Feb '09

I came across an OpenType font with TrueType outline that had an .otf extension, attempting to use it gave me this error: !luaTeX error (file /home/khaled/.fonts/UthmanTN1_Ver06.otf): can't find table `CFF ' ==> Fatal error occurred, no output PDF file produced! Reading OpenType specification, I see that it allows this: * In all cases, fonts with only CFF data (no TrueType outlines) always have an .OTF extension. * Fonts containing TrueType outlines may have either .OTF or .TTF, depending on the desire for backward compatibility on older systems or with previous versions of the font. TrueType Collection fonts should have a .TTC extension whether or not the fonts have OpenType layout tables present. I'm not sure if this is a LuaTeX of ConTeXt issue, but my guess is that a ConTeXt issue, thus reported here. Regards, Khaled -- Khaled Hosny Arabic localizer and member of Arabeyes.org team

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Serializing nodes
by luigi scarso 03 Feb '09

03 Feb '09

While grepping, I've found in base/node-ini.lua .... --[[ldx-- <p>Serializing nodes can be handy for tracing. Also, saving and loading node lists can come in handy as soon we are going to use external applications to process node lists.</p> --ldx]]-- .... \starttext \setbox100=\vbox{Hi} \ctxlua{io.savedata('vbox.hi',nodes.serializebox(100,true, true))} Box reuse:\blank \box100 \blank \ctxlua{initt=loadfile('vbox.hi');initt();tex.box[100] = nodes.FromTableToNodeButItnotExists(t)} %%actually an empty box, of course \box100 \stoptext I was not able to find a "table2node" function ie nodes.FromTableToNodeButItnotExists(t) -- luigi

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Page number not updating in layer
by Michael Bynum 03 Feb '09

03 Feb '09

I am trying to use a layer to insert a page number in my document, but the page always displays page number 1. It seems nothing that I have tried has worked. I also don't know how to exclude the first page from the total number of pages count. Here is the code I'm trying to use. \setupoutput[dvipsone] \starttext \definelayer[pagenumber] \setuplayer [pagenumber] [width=\paperwidth, height=\paperheight, state=repeat] \setlayer[pagenumber][preset=lefttop,x=4in,y=5.5in]% {\framed[width=1.25in,align=middle,offset=none]{\tfx Page \getnumber[page]~of~\totalnumberofpages}} \setupbackgrounds [page] [background={pagenumber},state=start] test \page test \page test \stoptext Thanks, Mike

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unwanted rgb-->gray conversion (mkiv)
by Peter Rolf 03 Feb '09

03 Feb '09

Hi Hans, The attached example works fine with mkii (text and gfx both use RGB colors). Using mkiv reduces the colorspace of the graphic to GRAY. Sadly PDFX/-4 doesn't allow to mix color profiles of colorspace RGB with GRAY ones. So I'm forced to always use the RGB colorspace... Best wishes, Peter \setupcolors[state=start] \definecolor[rgbgray] [r=.5,g=.5,b=.5] \startuniqueMPgraphic{foo}{size} fill unitsquare xyscaled(\MPvar{size},\MPvar{size}) withcolor \MPcolor{rgbgray}; \stopuniqueMPgraphic \starttext \uniqueMPgraphic{foo}{size=5cm} \color[rgbgray] Gray text. \stoptext

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beta and index
by Wolfgang Schuster 03 Feb '09

03 Feb '09

Hi, the last beta fails to produce a abbreviation list and the index. \abbreviation{One}{1} \abbreviation{Two}{2} \starttext \placelistofabbreviations text\index{one} and \One\ and text\index{two}, \Two\ and text \placeindex \stoptext Wolfgang

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Any ConTeXt user with ancient linux distribution?
by Mojca Miklavec 03 Feb '09

03 Feb '09

Hello, The new server on contextgarden.net has a newer linux distribution and 64-bit kernel. I used to compile the linux binaries on the server since they worked everywhere, also on newer machines (I once wrote a note "compiled with glibc 2.3.6" and maybe the kernel was 2.4.something; it was debian etch). The vice versa doesn't hold - if we compile the binaries on some newer machine, they won't work on older linuxes. So I have two questions: - Are there still users with old linux distributions using the minimals? - And if yes - any volunteer to compile the binaries on regular basis? (The releases of new luatex are the most critical ones. Other binaries can usually wait longer.) You may write me off-list. Mojca

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Possible memory leak?
by Yue Wang 02 Feb '09

02 Feb '09

Hi, Hans: in font-afm.lua, you use fontforge to open and to_table a pfb, but without closing it? btw, when MKIV is running for the first time (i.e., no cache file). it will use a lot of memory (parsing a 10M font will use 700-800 MB memory), are there some ways to reduce that? Another problem is, the memory usage seems incremental: I watch the memory usage in "top" carefully, it does not reduce when MKIV finish reading and caching an otf font. (well I read the font-otf.lua, and you are actually closing that font. so maybe that's because luatex is leaking memory?) btw, I load arial 300 times using the following file, %engine=luatex \directlua0{ function load_font (filename) local metrics = nil local font = fontforge.open(filename) if font then metrics = fontforge.to_table(font) fontforge.close(font) end return metrics end myfont = load_font('arial.ttf') % 300 myfont = load_font('arial.ttf') myfont = load_font('arial.ttf') myfont = load_font('arial.ttf') myfont = load_font('arial.ttf') myfont = load_font('arial.ttf') } and I can see the memory usage may ebb and flow, but actually it is leaking memory. Yue Wang

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Third International ConTeXt meeting 2009
by Taco Hoekwater 02 Feb '09

02 Feb '09

Hi all, I want to remind you of the Third International ConTeXT meeting that will be held in the Netherlands from August 31 to Sept 4, 2009. Please note that the dates have changed, the meeting will be held one week later than originally announced. There is no finalized programme yet, but we that there will be parallel LaTeX and ConTeXt sessions for the tutorials and macro- package specific talks, besides combined developer presentations. Separate rooms for informal discussions and workshops will be available throughout the week. Presentation proposals and topic requests are (of course) very welcome. The conference theme is "Educational Uses of TeX", so anything on that topic is exceptionally welcome, but that does not prohibit other topics. Please feel free to contact me! The joint eurotex conference and context meeting is made possible by the Netherlands Defence Academy (NLDA) that graciously invited us to their facilities, including the on-site hotel. This makes it possible to have a very competitive conference fees. The entire five-day meeting including six overnight stays in a single room, all meals, the conference materials, and a full day day excursion with following conference dinner will cost only 425 euro (for LUG members). For quick deciders, the 100 euro early bird discount offer deadline has been extended a bit, that is valid for another two weeks from today (until Feb 15). See the website for (some) more information and registration: http://www.ntg.nl/EuroTeX2009 Hope to see you there, Taco Hoekwater (for the organizing committee)

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How to capture a typeset page into a box instead of shipping it out
by Kevin D. Robbins 01 Feb '09

01 Feb '09

Hi all, I am looking for ideas of how to capture a typeset page (as it would appear in the resulting pdf output) into a box instead of actually shipping it out directly, if it is possible. I would like to take advantage of ConTeXt's layout features including layers, otherwise I would just create the box with \setbox. My intent is to draw slides using all of ConTeXt's many layout features, but capture the rendered slide in a box so I can use it either as a full page in the presentation output or as a scaled image included as a figure in a full text "train the trainer" document. Thanks, Kevin Robbins

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