- dev-context - NTG Mailing Lists

composing characters in MKIV: adding "mark" feature
by Mojca Miklavec 25 May '11

25 May '11

Dear Hans, as a follow up to the topic I brought up again last week (and as it was partially brought up on the tex-font mailing list as well), here are some of my thoughts (for discussion). When thinking a bit about it, it appears to me that the best approach for fixing accent positioning would be to implement "mark"/"mkmk" feature for both Type1 and OpenType fonts using lfg files. The things that come to my mind and would have to be done are the following: 1.) with some configuration, but universal accross fonts: One might have to copy a normal caron into combining caron (and copy all other accents as well), to enable <c><combining caron> to work properly. (Arthur would probably argue about normalization at this point, but I'm also talking about combinations that don't exist in Unicode; maybe <eogonek><combining caron> etc.) 2.) universal accross fonts: Let TeX determine "bottom marks" and "top marks" for all letters (that is: eogonek and scedilla also need at least the "top mark"). The code to calculate those values is already there. It would be helpful to have both graphical output displaying those marks on top of letters as well as an option to output those settings into a file (to enable easy manual editing of values and loading them again). 3.1.) Allow editing the values that TeX returned (from point 2) and loading them. 3.2.) Allow shifting "top marks" separately on lowercase/uppercase/smallcaps. Among those, allow exceptions for single letters (like lowercase l in Lucida which is taller than uppercase letters and requires special handling). Allow shifting "bottom marks" and allow exceptions. 4.) Allow shifting both marks to left/right (I'm not sure about units, but they may be the same units as used for bounding boxes; people who want to fix that have to experiment anyway). 5.) Allow shifting positioning marks on accents. There is some confusion since some accents come with their "natural bounding box", while combining accents don't. 6.) Low priority: For fonts that do have mark/mkmk feature, allow fixing mark positions on single letters and allow adding new marks on letters that lack them. 7.) Very low priority: Allow "faking accents" (creating bottom circumflex out of top circumflex). 8.) Lower priority, but might be kept in mind: this has to be done for Latin, but other scripts (like Cyrillic) might want to have that functionality on request as well. It makes little sense to add marks on all glyphs, including Chinese etc. The autocomposing feature should probably be switched off by default, but if one wants to switch it on and if one wants to add positioning marks, it might make sense to "ask the user" to which glyphs those marks have to be added. I can try to come up with more precise specification, but to start with: how would one add mark/mkmk features to lfg files? (I'm asking for some minimal example of syntax which doesn't have to work.) Mojca

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Luatex 0.70.1 announcement
by Taco Hoekwater 19 May '11

19 May '11

Hi, I have just uploaded the archives for a new luatex release, 0.70.1. About a dozen or so bugfixes that were mostly discovered while working on TeXLive 2011. News: * fixed: recorder file location from TL. * fixed: missing newline on 'No output' line. * fixed: relative names in synctex file. * fixed: 16bit png images in generated %!PDF-1.4. * fixed: building with (installed) libpng < 1.5.0 * fixed: year in --version output. * fixed: box output to synctex. * fixed: FontDescriptor for non-embedded OpenType fonts has an invalid FontFile3 entry (#654) * fixed: crash on non-existent images. * fixed: small memory leak in the ipc code. * fixed: tex.print() and tex.sprint() don't recognize -2 as the first argument (#659) The archives can be downloaded from supelec as usual: http://foundry.supelec.fr/gf/project/luatex/ You could also check out the sources via anonymous svn: svn co http://foundry.supelec.fr/svn/luatex/tags/beta-0.70.1 Bugs and feature requests can be added to the issue tracker at http://tracker.luatex.org Have fun, Taco

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current
by Hans Hagen 16 May '11

16 May '11

Hi, As I expect some incompatible luatex dev soon (lua level) I'd like to make a current. Any known showstoppers? 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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MetaPost 1.504
by Taco Hoekwater 06 May '11

06 May '11

We are happy to announce a new release of MetaPost: ---------------------------------------------------------------------- MetaPost 1.504 ---------------------------------------------------------------------- The standalone distribution package and a win32 binary can be downloaded immediately from http://foundry.supelec.fr/gf/project/metapost/ This is a bugfix release following the major internal rewrite done for 1.500. In fact, this will be the version of metapost that will be on TeXLive 2011. The win32 binary is intended for texlive or a similar web2c-based installation, this executable will *not* work for miktex. Of course, we welcome any comments (either good or bad) that you may have. Simply replying to this message is fine, but see the bottom of the message for a more formal way to report bugs and feature requests. ---------------------------------------------------------------------- What is new in MetaPost version 1.504: ---------------------------------------------------------------------- * A fix to the automatic detection of 'dvitomp' mode based on the executable name (proposed by PEB). * A better way to discover the end of the preload file is used now. * A memory release bug that caused metapost to crash on exit when fontmaking:=1 has been fixed. * A memory leak in the string concatenation code has been removed. * Again, a set of improvements to the manual. * Updated the manual page mpost.man ---------------------------------------------------------------------- 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, http://foundry.supelec.fr/gf/project/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, May 6, 2011.

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Luatex 0.70.0 announcement
by Taco Hoekwater 06 May '11

06 May '11

Hi, I have just uploaded the archives for a new luatex release, 0.70.0. This release will be the one on TeXLive 2011 (barring show-stopping bugs). Compared to 0.66, there is not a lot of news, just a few bug-fixes. News: * fixed: various changes needed for libpng 1.5.2. * fixed: node.fields() for nodes without subtype. * fixed: non-argument use of os.execute(). * fixed: tex.[s|t|]print() with invalid catcode table arguments. * fixed: recorder filename location with --output-directory. * fixed: display alignment in TRT mode. * luatex now uses the standard synctex files from Jérome Laurens. The archives can be downloaded from supelec as usual: http://foundry.supelec.fr/gf/project/luatex/ You could also check out the sources via anonymous svn: svn co http://foundry.supelec.fr/svn/luatex/tags/beta-0.70.0 Bugs and feature requests can be added to the issue tracker at http://tracker.luatex.org Have fun, Taco

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MetaPost 1.750 (alpha version)
by Taco Hoekwater 27 Apr '11

27 Apr '11

Hi all, Finally, I can release the first attempt at getting to metapost 2.0. ---------------------------------------------------------------------- MetaPost 1.750 ---------------------------------------------------------------------- The standalone distribution package and a win32 binary can be downloaded immediately from the 'experimental' files section at http://foundry.supelec.fr/gf/project/metapost/ *** This is an pre-alpha release for testing / experimenting only! *** It is able to process the images from mpman.mp (the metapost manual) but that is about the extent of the testing done so far, so expect lots and lots of bugs!. The win32 binary is intended for texlive or a similar web2c-based installation, this executable will *not* work for miktex. Of course, we welcome any comments (either good or bad) that you may have. Simply replying to this message is fine, but see the bottom of the message for a more formal way to report bugs and feature requests. ---------------------------------------------------------------------- What is new in MetaPost version 1.750: ---------------------------------------------------------------------- * The mpost executable now accepts --math=double as an argument. This switches the internal arithmetic functions from using a scaled 32-bit data type to 64-bit floating point. * With --math=double, the input scanner has been changed to allow a := 1.0E20 as input format for a (any) numerical value ---------------------------------------------------------------------- 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, http://foundry.supelec.fr/gf/project/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, April 27, 2011

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\newconditional and Lua
by Wolfgang Schuster 26 Apr '11

26 Apr '11

Hi Hans, is there a simple way to change the status from commands created with \newconditional id \newif from, e.g. in the following example it’s easy to pass the value of the conditional from TeX to Lua but not in the reverse way. \newconditional\test \starttext \settrue\test TeX: \ifconditional\test TRUE\else FALSE\fi Lua: \startluacode if \luaconditional\test then context("TRUE") else context("FALSE") end \stopluacode TeX: \ifconditional\test TRUE\else FALSE\fi \stoptext When i change \newconditional to \newcount it’s easy but not very elegant. \newcount\test \starttext \settrue\test TeX: \ifconditional\test TRUE\else FALSE\fi Lua: \startluacode if \luaconditional\test then context("TRUE") else context("FALSE") end tex.count['test'] = 1 ; \stopluacode TeX: \ifconditional\test TRUE\else FALSE\fi \stoptext Wolfgang

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bash vs sh in installation script
by Mojca Miklavec 17 Apr '11

17 Apr '11

Hello, Alan wrote me about the following issue. I don't know anything about bash/sh issues (except that sh is indeed more likely to be present and that I had to change many occurencies of /bin/sh to /bin/bash on garden because /bin/sh was a symlink to dash which didn't work). Does anyone object the change from bash to sh? Mojca On Wed, Apr 13, 2011 at 21:16, Alan BRASLAU wrote: > Mojca, > > Back at home and following the mailing list > after a gruesome hunt for the Apple Store in Paris? > > One request (not just for me :)) > in first-setup.sh, please change > #!/bin/bash > to > #!/bin/sh > > This is more general. > 1. Not everyone has bash installed on their machine > (but *everyone* always has /bin/sh, [sometimes as a link to bash]) > 2. Bash is not always to be found as /bin/bash > (it could be /usr/local/bin/bash, for example). > > Of course, I cannot speak for MacOS, known to be weird. > > Alan

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DefaultFont
by Wolfgang Schuster 16 Apr '11

16 Apr '11

Hi Hans, can you change the defintion of DefaultFont because it doesn’t work when you apply font features to it: \starttext \definedfont[DefaultFont]DefaultFont % works %\definedfont[DefaultFont*default]DefaultFont % breaks \stoptext type-set.mkiv - \definefontsynonym [DefaultFont] [cmvtt10] + \definefontsynonym [DefaultFont] [\s!file:lmmonoprop10-regular] Wolfgang

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Luatex 0.66.0 announcement
by Taco Hoekwater 12 Apr '11

12 Apr '11

Hi, I have just uploaded the archives for a new luatex release, 0.66.0. This release has ongoing work on the 'epdf' lua interface by Hartmut (and that interface now has documentation as well). Besides that, the release fixes a number of the bugs that have been reported over the past months (mostly the smaller/easier ones). Luatex 0.66.0 will be the last release in the 0.6X series. The next release will be luatex 0.70.0;that will be the version on texlive 2011. Expect no major differences there either, the tracker has just a few items remaining for 0.70.0. Over the last half year, I personally have been much too busy with MetaPost to do any real work on luatex, hence the somewhat disappointing amount of feature progress. I have uploaded the 0.66.0 base package to tlcontrib as well, but please give the builders a few days to create actual platform- specific binaries. News: * fixed: linebreak_filter doesn't do its default job when tex.linebreak is used * fixed: \escapechar ignored by \meaning * fixed: wrong px default * fixed: font kern attribute inheritance * fixed: "nop" unrecognized in virtual fonts * fixed: assertion failure in dviluatex when font ptmr8t used * fixed: tex.settoks for with strings with embedded zeroes * fixed: an indexing problem with nonexistent font glyphs * fixed: some crashes and other bugs on the 'subtype' and 'prev' fields (not all node types have those fields) * fixed: crash on token.csname_id ("") * fixed: initialize the statically allocated node's type ids * fixed: fencepost error in math parameter counting * fixed: math family numbers > 255 are allowed * fixed: compilation failure on Hurd * fixed: a small bug leading to displacements when reading the AccentTop table * fixed: \directlua followed by \pdfximage generates error if draft mode is active * fixed: a problem with \vadjust pre in alignments * fixed: a lua stack growing problem in the backend in 0.65.0, resulting in an inability to create more than a few thousand generated pages * fixed: inclusion of Scribus-generated pdfs * adapt: the default form margin is now zero (was 1bp before) * adapt: libpng 1.4.4, zzuplib 0.13.60, mplib 1.504 * adapt: small changes to the build system and new imports from the texlive repository * feature: new function node.currentattr() queries the current active attribute list * feature: Lua font loading; ignore unknown enumeration keys in MathConstants * feature: JPEG 2000 image support * feature: continuing work on the 'epdf' library * doc: the 'epdf' lua library is now documented * doc: various other manual corrections The archives can be downloaded from supelec as usual: http://foundry.supelec.fr/gf/project/luatex/ You could also check out the sources via anonymous svn: svn co http://foundry.supelec.fr/svn/luatex/tags/beta-0.66.0 Bugs and feature requests can be added to the issue tracker at http://tracker.luatex.org Have fun, Taco

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