- dev-context - NTG Mailing Lists

strc-ren.mkiv
by Wolfgang Schuster 25 Mar '13

25 Mar '13

Hi, \unexpanded\def\strc_rendering_initialize_alternatives {\edef\currentheadalternative {\headparameter \c!alternative}% - \ifcsname\??headplacementalternative\currentheadalternative\endcsname \else + \ifcsname\currentheadalternativehash\s!parent\endcsname \else \let\currentheadalternative\v!normal % cf. mkii \fi \edef\currentheadrenderingsetup {\headalternativeparameter\c!renderingsetup}% \edef\currentheadrenderingalternative{\headalternativeparameter\c!alternative}% \ifx\currentheadrenderingalternative\empty \let\currentheadrenderingalternative\v!vertical \fi \ifx\currentheadrenderingalternative\v!horizontal \global\setfalse\headisdisplay % global \else \global\settrue\headisdisplay % global \fi} Wolfgang

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MetaPost 1.800 announcement
by Taco Hoekwater 19 Mar '13

19 Mar '13

I am happy to announce a new release of MetaPost: ---------------------------------------------------------------------- MetaPost 1.800 ---------------------------------------------------------------------- This version will be the one included in TeXLive 2013. The major changes compared to MetaPost 1.504 that was in TeXLive 2012 are: * Support for IEEE double (64 bit) internal calculations as well as traditional 32-bit scaled arithmetic, by means of a command-line switch (--numbersystem=double). * Bitmap (png) output support. * The C and lua APIs have been extended to allow path control point resolution without going through the Metapost input language. * The code for picture shipout now uses "double" for all floating point values. This can give small differences in the actual output files in traditional mode due to the required scaled -> double conversion, but it was necessary to support the new numerical backend code. The win32 binary as well as a source archive can be downloaded immediately from the files section at https://foundry.supelec.fr/projects/metapost/ If you want to build MetaPost yourself, you can also do an anonymous subversion checkout: $ svn checkout --username anonsvn https://foundry.supelec.fr/svn/metapost/tags/1.800 The password is anonsvn ---------------------------------------------------------------------- What is new in MetaPost version 1.800: ---------------------------------------------------------------------- * A new string valued internal "outputformatoptions" is used by 'png' output format to control the png file format. In the future, this internal may become used for options to the other output formats as well. The syntax for "outputformatoptions" is a space-separated list of settings. Individual settings are keyword+'='+value. The only currently allowed ones are: format=[rgba|rgb|graya|gray] antialias=[none|fast|good|best] No spaces are allowed on the left, nor on the right, of the equals sign inside a setting. The assignment that would match the compiled-in default setup is: outputformatoptions := "format=rgba antialias=fast"; however, "outputformatoptions" is initially the empty string. Some notes on the (new) PNG output formats: - The 'rgb' and 'gray' subformats have a white background. The 'rgba' and 'graya' subformats have a transparent background. - Bitdepth is always 8. - In all cases, the image is initially created in 8-bit RGB mode. For 'gray' and 'graya', the RGB colors are reduced just before the actual PNG file is written, using a standard rule: g = 0.2126*r + 0.7152*g + 0.0722*b - CMYK colors are always converted to RGB during generation of the output image using: r = 1 - (c+k>1 ? 1 : c+k); g = 1 - (m+k>1 ? 1 : m+k); b = 1 - (y+k>1 ? 1 : y+k); - If you care about color conversions, you should be doing a "within <pic>" loop inside "extra_endfig". The built-in conversions are more of a fallback. * A new string-valued internal "outputfilename", which is set by "shipout" to the value of the just created file name. Until the first shipout has occurred, it is the empty string. ---------------------------------------------------------------------- What is fixed in MetaPost version 1.800: ---------------------------------------------------------------------- * Fixed a number of bugs where Metapost loaded the default font map file multiple times, resulting in lots of "fontmap entry for `<fontname>' already exists, duplicates ignored" warnings. * The "glyph <> of <>" operation could crash on fonts with empty subpaths in the charstrings. * Fixed a bug in the postscript encoding reader that caused a buffer overflow (fatal error) for encoding files that do not end with a newline. * Sped up png creation a bit by using smarter libpng options. * In the 'double' numbersystem, lots of precision was lost due to a bad internal conversion of fractions to scaled values. This affected the "rotated by", "directiontime", "sind" and "cosd" primitives, as well as internal dependency calculations. * In the 'double' numbersystem, an internal rounding error caused "directiontime" to return bad results for requests near zero. * There was a big scaling miscalculation while outputting glyphs in SVG mode with "prologues:=3". The output labels were so big that they fell completely outside of the generated image. * A problem resulting in 'This can't happen (endinput)' caused by a missing "end" at the end of the run was fixed. ---------------------------------------------------------------------- Legal notice / license / bug reports ---------------------------------------------------------------------- MetaPost is a system for producing graphics developed by John Hobby at AT&T, based on Donald Knuth's Metafont. The MetaPost home page is http://tug.org/metapost. MetaPost is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 2.1 of the License, or (at your option) any later version. The MetaPost development project is currently hosted at Supelec, https://foundry.supelec.fr/projects/metapost; with a bug tracker at http://tracker.luatex.org/. Please report bugs and request enhancements through there if possible. Alternatively, you can reach us through the <metapost(a)tug.org> mailing list as well. Have fun! Taco Hoekwater, for the MetaPost team, March 19, 2013.

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new font trickery
by Hans Hagen 14 Mar '13

14 Mar '13

Hi, I implemented this: \setupbodyfont[pagella] \starttext \dorecurse{10}{ \dorecurse{20}{ \start What \recursedepth\recurselevel\space \feature{smallcaps} What \recursedepth\recurselevel\space \feature{oldstyle} What \recursedepth\recurselevel\space \stop } \par } \stoptext A reasonable fast cummulative feature switcher (so its different from addff cum suis). I'm not aure about the name yet. Also, such features have a semi-global nature in the sense that redefining 'oldstyle' has no effect, but that's sort of natural. Of course it's somewhat slower than defining a font with specific features enabled. 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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Luajittex 0.75.0.1 announcement
by luigi scarso 08 Mar '13

08 Mar '13

New beta release of luajittex with luajit 2.0.1 patched with Hotfix#1 (see http://luajit.org/download.html) -- luigi

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Luatex 0.75.0 announcement
by Taco Hoekwater 04 Mar '13

04 Mar '13

Hi, I have just uploaded the archives for a new luatex release, 0.75.0. Most noticeable changes: * New expandable primitive \Uchar. * Metapost 1.790. * New version of lnodelib.c with speedups by Hans and Luigi. Also added some extra sanity checks to the Lua node field setting functions. * Support 'umath' in tex.extraprimitives(), so that formats can make the \Umath* primitives unprefixed, now that they will be provided by XeTeX as well. * Removed a bunch of deprecated primitives * \AlephVersion, \Alephrevision, \Alephversion, \Alephminorversion * \OmegaVersion, \Omegarevision, \Omegaversion, \Omegaminorversion * \omathcode, \odelcode, \omathchardef, \omathchar, \omathaccent, \odelimiter, \oradical * \Umathbotaccent, \Umathaccents * Fix large file support. * Fix Lua's loadfile(). * Removed the cidmap callbacks again (let that be done by user lua code after the fact). * Removed the fatal error on fonts where num_glyphs is too high, as that problem is actually harmless. * Some compilation issues under Win32 and Solaris resolved. NOTE: You still need an 'installed' pkg-config while building luatex. Either install pkg-config for your platform, or make sure there is a binary linking to /bin/true while configuring. The requirement is for the executable 'pkg-config' itself, not for any particular package. * Allow math extender objects to be zero width. * The 'epdf' library has been extended to deal with finding and saving embedded files (catalog:numEmbeddedFiles() and catalog: embeddedFile, new EmbFile object). The archives can be downloaded from supelec as usual: https://foundry.supelec.fr/projects/luatex/ You could also check out the sources via anonymous svn: svn co --username anonsvn --password anonsvn \ https://foundry.supelec.fr/svn/luatex/tags/beta-0.75.0 Bugs and feature requests can be added to the issue tracker at http://tracker.luatex.org Have fun, Taco

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Luajittex 0.75.0 announcement
by luigi scarso 01 Mar '13

01 Mar '13

New beta release of luajittex. It's in sync with luatex beta 0.75.0, plus Luajit 2.0.1 The project is hosted as usual at https://foundry.supelec.fr/projects/luajittex/ A Tracker for bugs/features and a mailing list for commits are enabled. -- luigi

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[mp-implementors] MetaPost 1.790
by Taco Hoekwater 17 Feb '13

17 Feb '13

I am happy to announce a new test release of MetaPost: ---------------------------------------------------------------------- MetaPost 1.790 ---------------------------------------------------------------------- This is a third test release for the new functionality planned in MetaPost 1.800. Besides a few bug fixes, this version has lots of internal speed-ups so that its running times should now be comparable to the MetaPost 1.50x series. All the reported new bugs in 1.780 have been fixed, but I may have introduced new problems while adding the speed optimizations. Use with care, and *do* let me know if something is wrong! This version will not be uploaded to CTAN / TLcontrib yet. The plan is to wait another for a few weeks before releasing 1.800. That will then be an official end-user release. The win32 binary can be downloaded immediately from files section at https://foundry.supelec.fr/projects/metapost/ The new foundry software is still not quite up to speed, so there is no source tarball uploaded yet (it was too large for the web form). If you want to build this latest MetaPost either wait a few days while Fabrice fixes foundry, or do an anonymous subversion checkout yourself: $ svn checkout --username anonsvn https://foundry.supelec.fr/svn/metapost/tags/1.790 The password is anonsvn ---------------------------------------------------------------------- What is new in MetaPost version 1.790: ---------------------------------------------------------------------- * Lots of speed-ups. * Fixed bug in division expressions that started with a literal number. * A few problems with bad deallocations were solved. * A bug where after saving and redefinition of primitives, they later were restored to 'undefined' instead of to their primitive meaning. * The "double" literal number parser now only accepts scientific notation if the character following 'E' or 'e' is '+', '-', or a digit. ---------------------------------------------------------------------- Legal notice / license / bug reports ---------------------------------------------------------------------- MetaPost is a system for producing graphics developed by John Hobby at AT&T, based on Donald Knuth's Metafont. The MetaPost home page is http://tug.org/metapost. MetaPost is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 2.1 of the License, or (at your option) any later version. The MetaPost development project is currently hosted at Supelec, https://foundry.supelec.fr/projects/metapost; with a bug tracker at http://tracker.luatex.org/. Please report bugs and request enhancements through there if possible. Alternatively, you can reach us through the <metapost(a)tug.org> mailing list as well. Have fun! Taco Hoekwater, for the MetaPost team, February 17, 2013.

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Difference between LM and CM font size
by Aditya Mahajan 11 Feb '13

11 Feb '13

Hi, While checking my context article for tugboat, Karl Berry found that typewriter fonts were coming out a bit smaller than expected. The following test file shows this: \starttext {\font\myfont = cmtt9 \myfont externalfigure[logo.pdf][width=1cm]} {\font\myfont = ec-lmtt9 \myfont externalfigure[logo.pdf][width=1cm]} \stoptext With ConTeXt MkIV 2013.01.27 (and also with ConTeXt TL), I get the attached output. Notice that the first and second line are of different height. Both lines are of the same height and width with MkII and with plain TeX. Any ideas on what is happening here? And more specifically, how can I get a typing environment whose font size is the same as that of cmtt9. Using \setuptyping[bodyfont=9pt] switches to font size that is the same as ec-lmtt9 in the above example. Aditya

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pack-lyr.mkiv
by Wolfgang Schuster 24 Jan '13

24 Jan '13

Hi, \def\pack_layers_set[#1][#2][#3]% #4 == box do \fi is ok {\bgroup \edef\currentlayer{#1}% - \edef\p_pack_layers_state{\layerparameter{#1}\c!state}% + \edef\p_pack_layers_state{\layerparameter\c!state}% \ifx\p_pack_layers_state\v!stop \dowithnextboxcs\egroup\hbox \else\ifthirdargument \pack_layers_set_indeed[#1][#2][#3]% \else \doifassignmentelse{#2} {\pack_layers_set_indeed[#1][][#2]}% {\pack_layers_set_indeed[#1][#2][]}% \fi\fi} Wolfgang

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Error with mtx-tools
by Aditya Mahajan 24 Jan '13

24 Jan '13

Hi, Running mtxrun --script tools --dirtoxml gives an error. ...minimals/texmf-context/scripts/context/lua/mtx-tools.lua:127: attempt to call global 'extname' (a nil value) Adding local extname = file.extname fixed this issue. Aditya

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