January 2019 - dev-context - NTG Mailing Lists

Luatex 1.08.0 announcement
by luigi scarso 28 Oct '19

28 Oct '19

============================================================== LuaTeX 1.08 2018-08-28 ============================================================== (1) This release is a prelude to 1.10, the next stable iteration of LuaTeX after version 1.00. (2) Lua 5.3 is now considered to be default and we might use 5.4 in version 1.10. There are no real functional changed expected. You still need to rename the binary for 5.3! (3) Binary mode is no longer available in MPlib but it is still available in stand alone MetaPost. This simplifies compilation and reduces dependencies. (4) The dependency on Poppler for pdf image inclusion has been removed. We now use a small dedicated library written by Pawel Jakowski. We no longer need c++ compilers. We're in the process of making it behave well on all platforms. It has been tested on intel platforms. (5) We know that there can be some (alignment) issues with the arm platform but these are looked into. Therefore, later this year we will release 1.09. Version 1.10 is planned for TeXlive. We hope that ffi works ok on intel and arm platforms at that point. (6) There have been some extensions to the Lua libraries and some callbacks have been added. Also, a few new primitives have been introduced. The documentation mentions the stable extensions. (7) There are the usual bug fixes and cleanups but there have been no real fundamental changes in the API. The LuaTeX team

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Caption in floatcombination is too low
by Wolfgang Schuster 06 Feb '19

06 Feb '19

Hi Hans, there is a big gap between the content and the caption of each float in a floatcombination environment. %%%% begin example \useMPlibrary[dum] \starttext \startplacefigure[title={First graphic}] \externalfigure[one] \stopplacefigure \startfloatcombination \startplacefigure[title={Second graphic}] \externalfigure[two] \stopplacefigure \stopfloatcombination \stoptext %%%% end example This is probably a result of the following two command from strc-flt.mkvi where you put the caption in a \vbox with a height of 1pt and flush it afterwards in \vtop which shifts the content down to the baseline. As a result of this a empty space was added at the top of the caption. A simple fix for this is to raise the box with the caption when it is added to the combination. %%%% begin strc-flt.mkvi \def\strc_floats_build_box_separate_make {\offinterlineskip \vpack to \onepoint{\box\b_strc_floats_content}\break \vpack to \onepoint{\box\b_strc_floats_caption}} \def\strc_floats_build_box_separate_split#1% {\setbox\scratchbox\vbox{% \setbox\scratchbox\vpack{#1}% \unvbox\scratchbox\relax \setbox\scratchbox\lastbox %\doloop{% \unvbox\scratchbox \setbox\scratchbox\lastbox % \ifdim\ht\scratchbox=2\onepoint \unvbox\scratchbox \setbox\scratchbox\lastbox % \exitloop % \fi}% \splittopskip\zeropoint \global\setbox\b_strc_floats_separate_content\vsplit\scratchbox to \onepoint \global\setbox\b_strc_floats_separate_caption\vsplit\scratchbox to \onepoint \global\setbox\b_strc_floats_separate_content\vpack{\unvbox\b_strc_floats_separate_content\setbox0\lastbox\unvbox0}% \global\setbox\b_strc_floats_separate_caption\tpack{\unvbox\b_strc_floats_separate_caption\setbox0\lastbox\unvbox0}% }} %%%% end strc-flt.mkvi Wolfgang

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(fwd) Bug#480725: mptopdf does not work with beginfig(-1)
by Norbert Preining 29 Jan '19

29 Jan '19

forwarded 480725 dev-context(a)ntg.nl thanks Dear Hans, dear Taco, on the Debian side we got the attached bug report together with a patch for mptopdf.pl. Can you comment on it, or consider it for inclusion? Thanks and all the best Norbert Please leave 480725(a)bugs.debian.org on the Cc list, thanks ------------------------------------------------------------------------------- Dr. Norbert Preining <preining(a)logic.at> Vienna University of Technology Debian Developer <preining(a)debian.org> Debian TeX Group gpg DSA: 0x09C5B094 fp: 14DF 2E6C 0307 BE6D AD76 A9C0 D2BF 4AA3 09C5 B094 ------------------------------------------------------------------------------- DARENTH (n.) Measure = 0.0000176 mg. Defined as that amount of margarine capable of covering one hundred slices of bread to the depth of one molecule. This is the legal maximum allowed in sandwich bars in Greater London. --- Douglas Adams, The Meaning of Liff

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small bug with the 'frac' font feature and linux libertine
by Taco Hoekwater 18 Jan '19

18 Jan '19

Hi, One of Hans van der Meer’s notes has this definition: \definefontfeature[fraction][frac=yes] \definehighlight[textfraction][style={\feature[+][fraction]}] but 'frac' sadly does not quite work correct with Linux Libertine. It looks like somehow the substitution context is off when the command is used immediately after a digit? I am not sure how to debug this properly, nor how to fix it even if I could find root cause of the problem, so I am posting here in the hope someone knows how to fix it. (adding \hskip1sp works as well as a full space, btw) Example attached. Best wishes, Taco

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