[luatex] Luatex 0.42.0 (a snapshot release)

Taco Hoekwater taco at elvenkind.com
Fri Jul 17 12:31:56 CEST 2009


I have just uploaded the archives for a new luatex release, 0.42.0.

NOTE: This snapshot is just for testing the new sources and the
updated build process, do NOT trust this binary for production work!

There is a whole lot of work done on the luatex internals since the
previous beta, and just judging by the amount of work done it seems
likely that there will be a few serious bugs remaining. There are two
big internal changes. Both changes are invisible to the user, but
definately worth mentioning:

* There is no pascal (web) code in luatex at all anymore, everything
  is now converted into plain C and split over about 50 source files.
  Later, this code will be converted back to CWEB (almost all comments
  have been kept) but first we want to spend a few months reorganizing
  the code base.

* The PDF backend has been reorganized a lot, and most of the global
  variables are not put into a single backend structure. Work in this
  area is not complete, but getting there.

The other newsworthy changes are:

* There is a new node.tail() function

* lua-loaded fonts now support a 'nomath' key to speed up
  loading the lua table.

* A bugfix in the ttf reader for the inclusion backend, and
  (also in the backend) support for treating ttc files by
  pretending they are single ttf fonts (both patches from pdftex)

* Add Khaled Hosny's man page to the repository

* The \pdfcompresslevel is now effectively fixed as soon as
  output to the pdf file has occurred.

* Patched status.filename so that it (nearly) always returns a
  file name.

* fix '\the\delcode' and disable '\the\odelcode', '\the\Udelcode',
  and '\the\Udelcodenum'

* Handle jfifs where either xres or yres is 0 and the other
  res is != 0 (from pdftex)

* The single-argument version of lang.hyphenate() was broken.

* Get rid of the \directlua/\latelua number warning.

* The Lua coroutine patch (coco) is now disabled on linux
  powerpc architectures (because it caused crashes)

* Removed obsolete pdftex primitives:

* The loading speed of large fonts (especially ttf) via the
  fontloader library, and the inclusion speed for subsetting
  in the backend have both been improved.

* The 'pdf' lua library has been enhanced with various new
  functions, see the manual for details.

* BLT and BRT glyph position fixed.

* Various fixes for synctex offsets.

* Support for exotic font string encodings has been removed
  from the fontloader library.

* The embedded MPlib is now 1.205.

* libpng is now 1.2.38.

The archives can be downloaded from supelec as usual:


You could also check out the sources via anonymous svn:

  svn co http://foundry.supelec.fr/svn/luatex/tags/0.42.0

Bugs and feature requests can be added to the issue tracker at


Have fun,

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