- dev-luatex - NTG Mailing Lists

LuaTeX Bug
by Vafa Khalighi 20 Sep '09

20 Sep '09

having $$1+2=3\eqno(1)$$ $$1+2=3\eqno(1)$$ $$1+2=3\eqno(1)$$ $$1+2=3\eqno(1)$$ $$1+2=3\eqno(1)$$ $$1+2=3\eqno(1)$$ $$1+2=3\eqno(1)$$ $$1+2=3\eqno(1)$$ $$1+2=3\eqno(1)$$ \end as the example document and running pdftex and luatex on it, it makes clear that with space between equations is too much when compiled with luatex. both PDFTeX and LuaTeX outputs are attached. -- Vafa

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Bad font scaling
by Barry Schwartz 19 Sep '09

19 Sep '09

I do not know whether this is a luatex bug or a ConTeXt bug. Mark IV seems to be incorrectly scaling and spacing PostScript fonts that have unconventional em-unit-size settings, such as my Sorts Mill Goudy fonts available here: http://www.theleagueofmoveabletype.com/ I presume that in one or more places the conventional value 1000 is hard-coded in, where the setting specified in the font is what should be used.

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problems with the mediabox
by Peter Rolf 18 Sep '09

18 Sep '09

Hi, I still have preflighting problems with the mediabox of luatex. It's accuracy is sufficient for printing, but using the values for a preflight is troublesome. An example: if I define a A4+ paper (303mm x 216mm) I get a mediabox of 303.0mm x 215.999mm. Hans has already restricted the trailing numbers of the trimbox/cropbox values in ConTeXt to adapt the accuracy (else rounding of the mediabox can lead to a bigger trim|cropbox, which is against definition). Anyhow, this is not enough for this example: MediaBox (mm): 303.0x215.999 (0.0/0.0/303.0/215.999) CropBox (mm): 303.0x216.0 (0.0/0.0/303.0/216.0 ) TrimBox (mm): 303.0x216.0 (0.0/0.0/303.0/216.0 ) MediaBox < CropBox|TrimBox So using the same number of digits after the point (%.3f) does not solve the problem. Setting the width to 216.001mm in this example helps, but this is unsatisfying. MediaBox (mm): 303.0x216.0023 (0.0/0.0/303.0/216.0023 ) CropBox (mm): 303.0x216.00101 (0.0/0.0/303.0/216.00101) TrimBox (mm): 303.0x216.00101 (0.0/0.0/303.0/216.00101) If you use some bleeding offset (in the A4+ example normally 3mm on each side) the problem vanishes. But for PDF/X you have to set the crop-|trimbox anyway, regardless if you use a bleeding offset or not. Possible solutions: - read access to the mediabox values, so that rounding errors can be handled - use the same calculation routine for all pdf boxes (e.g. a luatex library function) - ?? Any comments are welcome. Best wishes, Peter

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It seems that harfbuzz people care luatex and xetex a lot...
by Yue Wang 17 Sep '09

17 Sep '09

QUOTE: TeX engines are batch document processors but worth looking into separately. Historically TeX had no shaping engines and basic shaping was done using macro packages and a variety of hacks. More recently though, XeTeX was invented. XeTeX simply outsources the shaping to an external library, ICU or Apple's ATSUI currently. XeTeX is a separate branch of the TeX evolutionary hierarchy than the mainstream pdfTeX though. The XeTeX creator is working on HarfBuzz on behalf of Mozilla now, and plans to port XeTeX to HarfBuzz eventually. In the long term though, pdfTeX's successor luaTeX should be made to do the same thing. There is more to Unicode support than just shaping, and in those areas the TeX engines can gain a lot by building on top of existing libraries. http://behdad.org/text/

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Cron <luatex@vz3> /var/www/luatex.org/www/bin/luatex-svn
by root＠www.metatex.org 17 Sep '09

17 Sep '09

------------------------------------------------------------------------ r3049 | oneiros | 2009-09-16 23:25:55 +0200 (Wed, 16 Sep 2009) | 2 lines Changed paths: M /trunk/source/libs/libpng/ChangeLog M /trunk/source/libs/libpng/configure M /trunk/source/libs/libpng/configure.ac D /trunk/source/libs/libpng/libpng-1.2.39 D /trunk/source/libs/libpng/libpng-1.2.39-PATCHES A /trunk/source/libs/libpng/libpng-1.2.40 (from /trunk/source/libs/libpng/libpng-1.2.39:3046) M /trunk/source/libs/libpng/libpng-1.2.40/ANNOUNCE M /trunk/source/libs/libpng/libpng-1.2.40/CHANGES M /trunk/source/libs/libpng/libpng-1.2.40/INSTALL M /trunk/source/libs/libpng/libpng-1.2.40/KNOWNBUG M /trunk/source/libs/libpng/libpng-1.2.40/LICENSE M /trunk/source/libs/libpng/libpng-1.2.40/Makefile.am M /trunk/source/libs/libpng/libpng-1.2.40/Makefile.in M /trunk/source/libs/libpng/libpng-1.2.40/README M /trunk/source/libs/libpng/libpng-1.2.40/Y2KINFO M /trunk/source/libs/libpng/libpng-1.2.40/configure M /trunk/source/libs/libpng/libpng-1.2.40/configure.ac D /trunk/source/libs/libpng/libpng-1.2.40/libpng-1.2.39.txt A /trunk/source/libs/libpng/libpng-1.2.40/libpng-1.2.40.txt (from /trunk/source/libs/libpng/libpng-1.2.39/libpng-1.2.39.txt:3046) M /trunk/source/libs/libpng/libpng-1.2.40/libpng.3 M /trunk/source/libs/libpng/libpng-1.2.40/libpngpf.3 M /trunk/source/libs/libpng/libpng-1.2.40/png.5 M /trunk/source/libs/libpng/libpng-1.2.40/png.c M /trunk/source/libs/libpng/libpng-1.2.40/png.h M /trunk/source/libs/libpng/libpng-1.2.40/pngconf.h M /trunk/source/libs/libpng/libpng-1.2.40/pngset.c M /trunk/source/libs/libpng/libpng-1.2.40/pngtest.c M /trunk/source/libs/libpng/libpng-1.2.40/pngwutil.c M /trunk/source/libs/libpng/libpng-1.2.40/scripts/CMakeLists.txt M /trunk/source/libs/libpng/libpng-1.2.40/scripts/libpng-config-head.in M /trunk/source/libs/libpng/libpng-1.2.40/scripts/libpng.pc.in M /trunk/source/libs/libpng/libpng-1.2.40/scripts/makefile.32sunu M /trunk/source/libs/libpng/libpng-1.2.40/scripts/makefile.64sunu M /trunk/source/libs/libpng/libpng-1.2.40/scripts/makefile.aix M /trunk/source/libs/libpng/libpng-1.2.40/scripts/makefile.beos M /trunk/source/libs/libpng/libpng-1.2.40/scripts/makefile.cygwin M /trunk/source/libs/libpng/libpng-1.2.40/scripts/makefile.darwin M /trunk/source/libs/libpng/libpng-1.2.40/scripts/makefile.dec M /trunk/source/libs/libpng/libpng-1.2.40/scripts/makefile.elf M /trunk/source/libs/libpng/libpng-1.2.40/scripts/makefile.gcmmx M /trunk/source/libs/libpng/libpng-1.2.40/scripts/makefile.hp64 M /trunk/source/libs/libpng/libpng-1.2.40/scripts/makefile.hpgcc M /trunk/source/libs/libpng/libpng-1.2.40/scripts/makefile.hpux M /trunk/source/libs/libpng/libpng-1.2.40/scripts/makefile.linux M /trunk/source/libs/libpng/libpng-1.2.40/scripts/makefile.mingw M /trunk/source/libs/libpng/libpng-1.2.40/scripts/makefile.ne12bsd M /trunk/source/libs/libpng/libpng-1.2.40/scripts/makefile.netbsd M /trunk/source/libs/libpng/libpng-1.2.40/scripts/makefile.nommx M /trunk/source/libs/libpng/libpng-1.2.40/scripts/makefile.openbsd M /trunk/source/libs/libpng/libpng-1.2.40/scripts/makefile.sco M /trunk/source/libs/libpng/libpng-1.2.40/scripts/makefile.sggcc M /trunk/source/libs/libpng/libpng-1.2.40/scripts/makefile.sgi M /trunk/source/libs/libpng/libpng-1.2.40/scripts/makefile.so9 M /trunk/source/libs/libpng/libpng-1.2.40/scripts/makefile.solaris M /trunk/source/libs/libpng/libpng-1.2.40/scripts/makefile.solaris-x86 M /trunk/source/libs/libpng/libpng-1.2.40/scripts/pngos2.def M /trunk/source/libs/libpng/libpng-1.2.40/scripts/pngw32.def A /trunk/source/libs/libpng/libpng-1.2.40-PATCHES (from /trunk/source/libs/libpng/libpng-1.2.39-PATCHES:3046) libpng 1.2.40 ------------------------------------------------------------------------ r3050 | oneiros | 2009-09-17 00:04:00 +0200 (Thu, 17 Sep 2009) | 2 lines Changed paths: A /trunk/.doxygen (from /trunk/source/texk/web2c/luatexdir/.doxygen:3048) D /trunk/source/texk/web2c/luatexdir/.doxygen doxygen of the whole project ------------------------------------------------------------------------

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Cron <luatex@vz3> /var/www/luatex.org/www/bin/luatex-svn
by root＠www.metatex.org 15 Sep '09

15 Sep '09

------------------------------------------------------------------------ r3048 | oneiros | 2009-09-14 23:46:10 +0200 (Mon, 14 Sep 2009) | 2 lines Changed paths: A /trunk/source/texk/web2c/luatexdir/.doxygen play with doxygen ------------------------------------------------------------------------

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Cron <luatex@vz3> /var/www/luatex.org/www/bin/luatex-svn
by root＠www.metatex.org 14 Sep '09

14 Sep '09

------------------------------------------------------------------------ r3047 | oneiros | 2009-09-14 18:16:03 +0200 (Mon, 14 Sep 2009) | 2 lines Changed paths: M /trunk/source/texk/web2c/luatexdir/font/writefont.c indent ------------------------------------------------------------------------

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Cron <luatex@vz3> /var/www/luatex.org/www/bin/luatex-svn
by root＠www.metatex.org 13 Sep '09

13 Sep '09

------------------------------------------------------------------------ r3044 | hhenkel | 2009-09-13 18:28:28 +0200 (Sun, 13 Sep 2009) | 2 lines Changed paths: M /trunk/source/texk/web2c/luatexdir/lua/limglib.c M /trunk/source/texk/web2c/luatexdir/lua/lpdflib.c M /trunk/source/texk/web2c/luatexdir/pdf/pdfgen.c M /trunk/source/texk/web2c/luatexdir/pdf/pdftypes.h M /trunk/source/texk/web2c/luatexdir/tex/extensions.c incremental output_mode numbering (to allow array) ------------------------------------------------------------------------ r3045 | hhenkel | 2009-09-13 19:32:32 +0200 (Sun, 13 Sep 2009) | 2 lines Changed paths: M /trunk/source/texk/web2c/luatexdir/pdf/pdflistout.c M /trunk/source/texk/web2c/luatexdir/pdf/pdflistout.h M /trunk/source/texk/web2c/luatexdir/pdf/pdfshipout.c M /trunk/source/texk/web2c/luatexdir/pdf/pdftypes.h init_backend_functionpointers() can now instantly switch between backends ------------------------------------------------------------------------ r3046 | hhenkel | 2009-09-13 20:39:58 +0200 (Sun, 13 Sep 2009) | 2 lines Changed paths: M /trunk/source/texk/web2c/luatexdir/pdf/pdflistout.c M /trunk/source/texk/web2c/luatexdir/pdf/pdflistout.h backend names ------------------------------------------------------------------------

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Cron <luatex@vz3> /var/www/luatex.org/www/bin/luatex-svn
by root＠www.metatex.org 27 Aug '09

27 Aug '09

------------------------------------------------------------------------ r3043 | hhenkel | 2009-08-26 22:20:33 +0200 (Wed, 26 Aug 2009) | 2 lines Changed paths: M /trunk/source/texk/web2c/luatexdir/image/writeimg.c memset() had already initialized img_xres() and img_yres() properly ------------------------------------------------------------------------

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Cron <luatex@vz3> /var/www/luatex.org/www/bin/luatex-svn
by root＠www.metatex.org 26 Aug '09

26 Aug '09

------------------------------------------------------------------------ r3041 | hhenkel | 2009-08-26 21:42:00 +0200 (Wed, 26 Aug 2009) | 3 lines Changed paths: M /trunk/source/texk/web2c/luatexdir/dvi/dvigen.c M /trunk/source/texk/web2c/luatexdir/dvi/dvigen.h M /trunk/source/texk/web2c/luatexdir/image/writeimg.c M /trunk/source/texk/web2c/luatexdir/pdf/pdflistout.c M /trunk/source/texk/web2c/luatexdir/pdf/pdflistout.h M /trunk/source/texk/web2c/luatexdir/pdf/pdfrule.c * bug: all DVI rules were on vacation (huh, nobody noticed?) * initialize img_xres and img_yres (PDF case) ------------------------------------------------------------------------ r3042 | oneiros | 2009-08-26 21:52:59 +0200 (Wed, 26 Aug 2009) | 2 lines Changed paths: M /trunk/source/texk/web2c/luatexdir/pdf/pdfrule.c properly mark a parameter as unused; the compiler warned: ISO C90 forbids mixed declarations and code ------------------------------------------------------------------------

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