2 This file is in the public domain.
4 ==============================================================
5 Luatex Release 0.89.4 was released 2016031100
6 ==============================================================
8 Intermediary release. Several bugs fixed.
12 ==============================================================
13 Luatex Release 0.89.2 was released 2016022700
14 ==============================================================
16 Intermediary release. Several bugs fixed.
19 ==============================================================
20 Luatex Release 0.89.0 was released 2016020500
21 ==============================================================
23 No fundamental changes, just some fixes / improvements (and of course new bugglets).
26 \pdfvariable pkfixeddpi = integer % > 0 : use only default dpi (so one can do with one high res instance)
27 \pdfvariable ignoreunknownimages = integer % > 0 : ignore missing and inject something empty (to be used with care)
29 \edef\foo{\pdfvariable foo}
31 \ifx\foo\oof don't fool me\fi
32 (side effect of no longer aborting on missing, so one implement a catch)
37 ==============================================================
38 Luatex Release 0.88.0 was released 2016011500
39 ==============================================================
41 This is a next step upto 0.90 and it has the following changes:
43 - mostly small bug fixes
45 - a few setters/getters added to the pdf namespace (were in the tex one before)
47 - The current libraries under libs are now:
61 ==============================================================
62 Luatex beta-0.87.0 was released 2015121700
63 ==============================================================
67 This is a next step upto 0.90 and it has the following changes:
69 - image data is no longer stored in the format (it was fragile anyway)
71 - pdf backend data generated when in ini mode is no longer stored in the format
73 - (incomplete) \mag support removed from pdf backend (this functionality is
76 - there are a couple of improvements that should make luatex run a little bit faster
77 (but of course that depends on the job at hand)
79 - some further pending issues / cleanup has been done (but this is not reflected in the
82 - there is a new primitive \nospace:
84 \nospace=1 do now not inject glue for spaces (not even zero glue)
85 \nospace=2 inject zero glue for spaces
87 - there are new primitives \hpack, \vpack and \tpack that are like \hbox, \vbox and
88 \vtop but they don't trigger callbacks
90 - we no longer keep track of older math character and delimiter definition states,
91 but this should normally go unnoticed
93 - from now on only ^^XX, ^^C, ^^^^XXXX and ^^^^^^XXXXXX are supported so no funny odd
94 values (three and five)
96 - texio.setescape(0) disables escaping to terminal (a matter of taste)
98 - the (current) lc codes are now saved with the (current) language when patterns are
99 loaded unless one hs used \hjcode instead of \lccode; overloading of \hjcodes is
100 possible (but of course goes ahead of hyphenation which is delayed till parbuilding or
103 - active characters can now be set with: \letcharcode123=\foo (experimental)
105 - there are some experimental new primitives but these will be described when they are
106 stable (currently being tested)
108 - there is more backend error reporting and all error messages adn warnings (the non-tex
109 ones) have been normalized
111 - of course there are the usual small fixes and additional setters and getters in libraries
115 ==============================================================
116 Luatex beta-0.85.0 was released 2015111400 (5550)
117 ==============================================================
120 The 0.85 release is has a lot of changes. It is the prelude to 0.90 which itself is
121 a prelude to the 0.95 that will go on texlive 2016. The 1.00 release will happen
122 around the 2016 context meeting. After that 2.* will become the next experimental
123 branch (leading to 3.*). The most important changes between 0.80 and 0.85 are mentioned
124 below. For more information consult the manual.
126 -- the backend commands
128 There is a better separation between front- and backend code. Some of the generic
129 \pdf* commands have been promoted to core primitives (with different names), some
130 have been removes like ximagecolordepth and ximagebbox have been removed and
131 all that are left have been organized differently. The backend is now more abstract
132 and provides three primitives only
134 \pdfextension <keyword> <optional spec>
135 \pdfvariable <keyword>
136 \pdffeedback <keyword>
138 The first replaces \pdfannot and alike, the second replaces the variables that can
139 be sused to control behaviour, and the third accesses the read only variables. See
140 luatex-pdf.tex in the context distribution for a plain definition file.
142 The big advantage of the separation (basically core (lua)tex + extensions) is that
143 changes in the backend don't have consequences for the frontend and it's easier to
144 locate possible issues in the code. We might split a bit more at the lua end too.
148 The boundary, dir and localpar whatsits are now normal nodes. The xforms and ximage
149 whatsits are now a special kind of rule nodes (subtypes 1 and 2) and known as box-
150 and image resources (see manual). Also, empty rules are now a valid subtype (subtype
151 3) with related commands \nohrule and \novrule.
153 At the lua end one can now access the fields of a spec subnode directly in the parent,
154 which has the benefit of more control and robust assignments (no need to check for
155 writeability) while we keep the concept of shared glue specs (tex internals). By
156 staying close to traditional TeX the Knuthian documentation still applies in most
159 The pdf action nodes are now pdf_action whatsit nodes (so no longer a pseudo core
162 You can get the node subtypes with the node.subtypes function which adds a layer
163 of abstraction (foo.subtype = "string" might be added in the future).
167 The hz optimization already only supported level 2 optimization, but now has a variant
168 3 that does only stretch glyphs and not kerns. Pending is a change where we go back to
169 percentages instead of fractions of em.
173 The old/new codepath has been checked and italic correction which is fundamental
174 different between the engines has been (partially) redone.
176 We now have \mathsurroundskip that replaces mathsurround when it's non zero.
178 The \mathtoptions (old 1) directive can be used for testing. This primitive is mostly for
179 ourselves and used for development.
181 The \Umathcharclass, \Umathcharfam and \Umathcharslot primitives can be used to fetch
182 properties of a math character.
184 The new \Uleft, \Uright and \Umiddle fence operators accept "height <dimen>", "depth
185 <dimen>" and the "noaxis" keyword as well the "exact" keyword for non-fitting ones. There
186 is also \Uvextension. Optionally one can specify a 'class'.
188 The \Udelimiter[under|over] and \U[under|over]delimiter primitives accept a width as well
189 as left, middle and right keywords (for non fitting ones). There is also \Uhextension.
191 The \abovewithdelimiter command accepts 'exact' as keyword (before the dimension) which nils
192 the excessive spacing. The normal vgaps still apply.
194 We have a new fraction primitive \Uskewed with a companion \Uskewedwithdelims. Optional
195 keywords are 'noaxis' and 'exact'.
197 There is a new directive \mathdisplayskipmode (esp for controlling the > 0 below skip check).
199 With \mathscriptsmode you can fix anchoring of scripts (as needed for chemistry).
201 The \Umathaccent commands accept a width and fraction argument.
205 The discretionary command now accept an optional "penalty <number>" specification
206 where the penalty will be stored with the node. Default is hyphenpenalty.
210 texio.write/write_nl now writes to file if the first argument is a (valid) number
211 reference to a file opened at the tex end; you can now open 128 files from the tex end
212 (0..127) and the system command is no longer executed with 18
216 The tex.<internal variable> is hopefully better now. The tex.get* also can handle
217 the built in registers. Especially prevdepth access should work out ok now.
221 As usual there are lots of small fixes, improvements, overhauls, small additions,
222 hopefully all mentioned in the manual.
226 This version is probably not compatible with the macro package that you use as some
227 engine specific initializations need to take place (\pdf commands) and some node types
228 have been changed. We now have separated pdf backend commands and the only left
229 primitive categories are: core, (tex), etex and luatex, so no more pdftex, omega and
230 umath (where the distinction became to fuzzy). Of course you can still prefix.
234 ==============================================================
235 Luatex beta-0.81.0 was released 2015100722 (5350)
236 ==============================================================
240 * A couple of primitives are removed, renamed and/or promoted to core (luatex) primitives.
241 Here's a summary. It might demand some adaption in the way macro packages initialize so we will mention them here explicitly in advance. As shown below, a simple way to get backward compatibility is to \let old ones to new ones. So,
243 Updating to this version also might demand an update in the
244 macro package that you use!
248 % removed, can be done with callbacks if needed, one can define dimen dummies, like
250 \newdimen\pdfeachlineheight
251 \newdimen\pdfeachlinedepth
252 \newdimen\pdflastlinedepth
253 \newdimen\pdffirstlineheight
254 \newdimen\pdfignoreddimen
256 % removed, were already obsolete, one can \let them
258 \let\pdftexversion \luatexversion
259 \let\pdftexrevision\luatexrevision
260 \let\pdftexbanner \luatexbanner
262 % promoted (from pdftex), so pdf prefix gone, one can \let them
264 \let\pdfnormaldeviate \normaldeviate
265 \let\pdfuniformdeviate\uniformdeviate
266 \let\pdfsetrandomseed \setrandomseed
267 \let\pdfrandomseed \randomseed
269 % promoted (from omega), so pdf prefix gone, one can \let them
271 \let\pdfpagewidth \pagewidth
272 \let\pdfpageheight\pageheight
274 % redundant (etex wins over omega), so \font-less ones gone, one can \let them
276 \let\chardp\fontchardp
277 \let\charht\fontcharht
278 \let\charit\fontcharit
279 \let\charwd\fontcharwd
281 % promoted (from aleph)
286 % promoted (from pdftex)
292 % removed (from pdftex), so *pdf* ones gone, one can \let them
294 \let\ifpdfabsnum \ifabsnum
295 \let\ifpdfabsdim \ifabsdim
296 \let\ifpdfprimitive\ifprimitive
297 \let\pdfprimitive \primitive
299 % promoted (from omega)
307 % promoted (from aleph)
311 % promoted (from pdftex)
322 % promoted (from pdftex), so *pdf* ones gone, one can \let them
324 \let\pdfprotrudechars\protrudechars
325 \let\pdfadjustspacing\adjustspacing
327 \let\pdfnoligatures \ignoreligaturesinfont
328 \let\pdffontexpand \expandglyphsinfont
330 % promoted (from pdftex), so *pdf* ones gone, one can \let them
332 \let\pdfsavepos \savepos
333 \let\pdflastxpos\lastxpos
334 \let\pdflastypos\lastypos
336 % on the todo list are:
338 \pdfoutput : \outputmode
339 \pdfmatrix : will get a normal syntax, no weird { } parsing
341 \pdfcolorstackinit : might become obsolete
342 \pdfcolorstack : might become obsolete
344 So, apart from a few, the \pdf* primitives now relate to the backend only.
346 % There is also a new primitive:
350 This one determines the minimum word length (per language).
351 At the same time we moved the (ex)hyphenpenalties
352 in the disc nodes so you can inject discretionaries with specific penalties.
354 There will also be an updated manual.
358 * new epdf.openMemStream(s,l,docid)
359 to create a pdf from a lightuserdata or string.
360 (experimental, do not use in production.)
362 * uniform random generator in mplib is now specific for each numbersystem;
364 * too_precise implemented for binary number system;
369 ==============================================================
370 Luatex beta-0.80.0 was released 20150319 (5195)
371 ==============================================================
373 * New library newtokenlib. It will replace the current token lib.
374 * Fixed a bug on the normal random generator for double/decimal/binary
376 * Several others bugs fixed.
379 ==============================================================
380 Luatex beta-0.79.3.1 was released 20150122 (5140)
381 ==============================================================
383 * Fixed a bug in mp.w with a wrong input that gives a seg. fault.
387 ==============================================================
388 Luatex beta-0.79.3 was released 20150121 (5130)
389 ==============================================================
392 * It's now possible with the MinGW compilers to build luatex and luajittex as DLL
393 for Windows 32bit/64bit. The files are:
394 libkpathsea-6.dll luajittex.exe luatex.exe texlua52.dll texluajit.dll
395 In the next release the build.sh script be updated; for the moment just add
396 "--enable-shared -disable-native-texlive-build " after --disable-all-pkgs
398 Building as DLL was tested only for Windows.
400 * When possibile symbols in the exe are now hidden:
401 this should avoid conflicts with the loading of dynamic shared object.
403 * several bugfixes and improvements. The patches for MetaPost
404 fix seg. faults occourred with wrong inputs.
406 mp_get_numeric_value, mp_get_string_value, mp_get_boolean_value
407 works if the value is a variable (i.e. not an internal variable,
408 a loop variable and a macro argument);
409 only mp_get_numeric_value now has support for loop variable
410 and internal variable (but still not for macro arguments).
413 ==============================================================
414 Luatex beta-0.79.2 was released 20141111 (5082)
415 ==============================================================
418 * WARNING: the structure of the format file is changed.
419 After the Web2C \TeX's magic constant: "W2TX" there is now
420 a FORMAT_ID, a 32bit field that cannot be between 0 and 256 (included)
421 so that there are no conflicts with the preexisting structure
423 The value can be seen with --debug-format and currently is
424 907 (the sum of the values of the bytes of the ASCII string "don knuth").
426 * There is a new set of lua functions for StructElement and Attribute,
427 convenient (even if not indispensable) for tagged pdf.
430 * several bugfixes and improvements.
433 ==============================================================
434 Luatex beta-0.79.0 was released 20140328 (4960)
435 ==============================================================
437 * The luafontloader now returns 'tsidebearing' glyph values
438 for OT/TT fonts, if applicable.
440 * new lua variables: stats.luatex_hashtype, stats.luatex_hashchars,
441 stats.lastluaerrorstring; the luajittex string hash method is now
442 lua 5.1 compliant which gives better results for similar strings
444 * new lua functions: tex.init_rand(), tex.uniform_rand(),
445 tex.normal_rand(), tex.lua_math_randomseed(), tex.lua_math_random(),
446 tex.show_context(); these helpers make luatex and luajittex compatible
448 * In the lua node interface, there were often issues with rubbish
449 in (especially) 'prev' fields because luatex itself never looks
450 at those values. This is now cleaned up to prevent weird stuff
451 happening inside lua node processing code.
453 * pdf.pageattributes, pdf.pagesattributes, pdf.info, pdf.catalog,
454 pdf.names and pdf.trailer now behave consistent and can be used
455 to add these properties at the lua end in addition to their \pdf*
456 counterparts atthe tex end; there are now pdf.get* and pdf.set*
457 commands for them too (in future versions the old ways can become
460 * new accessors pdf.geth, pdfgetv, pdfgetpos, getgetmatrix as well
461 as pdfhasmatrix helpers (in future versions the direct pdf.h and
462 pdf.v accessor can become obsolete)
464 * the pdf.pdf* variables have been removed (they were already
465 obsolete for some years)
467 * a new properties mechanism for associating lua tables with nodes
468 that get cleaned up when nodes a freed (see manual for details)
470 * several improvements to the way temporary (backend) data is stored
471 at the lua end (better protection, more consistent)
473 * a 'l' type for user nodes that holds a lua variable (can be set
476 * if a late lua node is set at the lua end the string value can be
477 a function as well which is then executed during serialization to
480 * Various small speedups
482 * Various smallish fixes to the node direct interface
484 * LPeg is now at version 0.12
486 * Some small fixes to the CFF (font) parsing
488 * Font file inclusion reporting messages on the terminal now
489 comply to the texconfig.trace_file_names setting
491 * Removed some of the additional luafontloader.info() return
492 information that was added in 0.78.2, but could not work
495 * new primitive \luafunction (see manual), with associated
496 lua.get_functions_table() function
498 * lua error message reporting has been altered a bit to make
499 the distinction between \directlua and other lua source code
502 * Additional pdf document data functionality in the 'pdf' table
503 has been cleaned up internally
505 * Additional pdf destination names can now be set via lua.
507 * New callbacks: finish_pdfpage, show_error_message,
508 show_lua_error_hook, start_file, stop_file
510 * Handling of \tracinglostchars is fixed
512 * Embedded metapost library version is now 1.900
514 * luajittex is now included in the distribution. One can use
515 buildjit.sh to build both luatex and luajittex, where
516 supported by the platform
518 * Synchronization with the TeXLive sources updated the following
520 * libpng is now 1.6.10
521 * poppler is now 0.25.2
523 ==============================================================
524 Luatex beta-0.78.2 was released 20140113 (4748)
525 ==============================================================
527 * Extended luafontloader's info() function to include data
528 from the 'pfminfo' and 'names' structure.
530 * Fixed a bug in the luafontloader library that made loading
531 some fonts extremely slow (LastResort.ttf)
533 * Removed a recent extension in the luafontloader library that
534 made loading fonts with lots of glyphs slow (ArialUnicoce.ttf).
535 Note: the extension made sure that there were no duplicate
536 glyph names in the font after loading.
538 * Restored --recorder output for lua files (dofile/loadfile/io.open)
540 * One-at-a-time pattern adding from lua used to require enormous
543 * luatex's fontloader.to_table() no longer reports 'altuni' table
544 information for alternates that are solely driven by the font
545 encoding. This fixes loading time issues for fonts that fill
546 encodings by copying a single glyph many times, like e.g.
547 LastResort.ttf from Apple.
549 * The datestamp no longer appears in any banners. The associated
550 \luatexdatestamp primitive is deprecated and will be removed
553 * Synchronization with the TeXLive sources updated the following
555 * cairo is now 1.12.16
556 * pixman is now 0.32.4
559 * poppler is now 0.25.0
561 * That same TL synchronization also fixes these issues:
562 * Always write "\nendstream" to the PDF for PDF/A-1b compliance.
563 * Large file support (>4GB) in Lua
564 * Big images could overflow on systems where sizeof(long)=4.
565 * In writing CID CFF fonts to the PDF, and end_dict() was missing.
566 * Unknown 'post' table versions (found in some broken ttf/otf
567 fonts) are now treated as-if they specified version 3.0.
568 * Fix crashes on 32-bit systems caused by bad C header inclusion
570 * Handle '--luac' and '--luaconly' properly
571 * luatex is now released under GPLv2+, not just GPLv2.
572 * luatex can now find .ofm metric files even if the extension
573 is not given explicitly.
575 * node.unset_attribute() was broken in 0.78.0
577 * The UTF-8 commandline patch from 0.78.0 for Win32 was removed
578 again (did not work properly)
580 ==============================================================
581 Luatex beta-0.78.0 was released 20131231
582 ==============================================================
584 * Instead of using expanded fonts, just calculate the expanded
585 width of glyphs where needed, and carry expand info in the
586 glyph nodes (all based on Hans' suggestions). All font expansion
587 functions are disabled and most are removed.
589 * New, faster (but limited) direct node access from lua, see
590 the manual for details
592 * Support for Apple Advanced Typography (AAT) information in
595 * Extended build script for mingw/msys (includes 64-bit support)
597 * Various patches from/via Akira Kakuta for better Win32
600 * Fixes for some bugs in de pdfscanner library (mostly related
603 * Maximum hyphenated word length is now 64Kb characters.
605 * Various patches from Khaled Hosny and Luigi Scarso for the
606 luafontloader subsystem
608 * Fix for a crash when re-dumping formats
610 * Fix for a Selene unicode library bug where some characters in
611 UTF-8 were incorrectly flagged as having the 'Space' property
615 ==============================================================
616 Luatex beta-0.76.0 was released 20130405
617 ==============================================================
621 * Small patches from TeXLive 2013, as well as an update to the
622 latest libraries (libpng, poppler, etc.)
624 * Speed up printing (of TeX strings) to the terminal and log.
626 * New lua function node.end_of_math().
628 * Fixed a memory leak in the lua function pdfscanner.scan().
630 ==============================================================
631 Luatex beta-0.75.0 was released 20130301
632 ==============================================================
636 * New expandable primitive \Uchar.
640 * New version of lnodelib.c with speedups by Hans and Luigi.
641 Also added some extra sanity checks to the Lua node field
644 * Support 'umath' in tex.extraprimitives(), so that formats can
645 make the \Umath* primitives unprefixed, now that they will be
646 provided by XeTeX as well.
648 * Removed a bunch of deprecated primitives
649 * \AlephVersion, \Alephrevision, \Alephversion, \Alephminorversion
650 * \OmegaVersion, \Omegarevision, \Omegaversion, \Omegaminorversion
651 * \omathcode, \odelcode, \omathchardef, \omathchar, \omathaccent,
652 \odelimiter, \oradical
653 * \Umathbotaccent, \Umathaccents
655 * Fix large file support.
657 * Fix Lua's loadfile().
659 * Removed the cidmap callbacks again (let that be done by user lua
660 code after the fact).
662 * Removed the fatal error on fonts where num_glyphs is too high,
663 as that problem is actually harmless.
665 * Some compilation issues under Win32 and Solaris resolved.
667 * Allow math extender objects to be zero width.
669 * The 'epdf' library has been extended to deal with finding and
670 saving embedded files (catalog:numEmbeddedFiles() and catalog:
671 embeddedFile, new EmbFile object).
673 ==============================================================
674 Luatex beta-0.74.0 was released 20121224
675 ==============================================================
680 There are no patches to the core Lua files; a future version
681 of luatex will switch to loading the regular lua 5.2 dynamic
682 library instead of depending on a statically compiled
685 * A bleeding-edge version of luasocket is included, as there
686 is no 5.2-compatible official release yet.
688 * A new lua extension is the two-argument version of
689 string.dump from Luajit:
691 string.dump(function f, [boolean strip])
695 * The implied existence of the following lua libraries is now
698 debug, unicode.*, luazip, lfs, lpeg, zlib, gzip, md5,
699 socket.*, profiler, epdf, fontloader, mplib, and
702 Future versions of luatex will load these modules on demand
703 from dynamic libraries.
705 Please update your sources to include a 'require' line for
706 each of the library modules mentioned.
708 * Two new callbacks: find_cidmap_file and load_cidmap_file
709 (used by the fontloader to discover .cidmaps)
711 ==============================================================
712 Luatex beta-0.72.0 was released 20121210
713 ==============================================================
717 * update various used libraries, including mplib 1.770,
718 poppler 0.21, libpng 1.5, and lpeg 0.10.2.
720 * new 'pdfscanner' lua library.
722 * various OpenType math fixes, including \Umathcharnumdef.
724 * improved placement of bottom accents.
726 * various other small fixes that have accumulated over the past
729 ==============================================================
730 Luatex beta-0.70.1 was released 20110519
731 ==============================================================
735 * fixed: recorder file location from TL (Akira).
737 * fixed: missing newline on 'No output' line.
739 * fixed: relative names in synctex file.
741 * fixed: 16bit png images in generated %!PDF-1.4.
743 * fixed: building with (installed) libpng < 1.5.0
745 * fixed: year in --version output.
747 * fixed: box output to synctex.
749 * fixed: FontDescriptor for non-embedded OpenType fonts has an
750 invalid FontFile3 entry (#654)
752 * fixed: crash on non-existent images.
754 * fixed: small memory leak in the ipc code.
756 * fixed: tex.print() and tex.sprint() don't recognize -2 as the
757 first argument (#659)
759 ==============================================================
760 Luatex beta-0.70.0 was released 20110506
761 ==============================================================
765 * fixed: various changes needed for libpng 1.5.2.
767 * fixed: node.fields() for nodes without subtype.
769 * fixed: non-argument use of os.execute().
771 * fixed: tex.[s|t|]print() with invalid catcode table arguments.
773 * fixed: recorder filename location with --output-directory.
775 * fixed: display alignment in TRT mode.
777 * luatex now uses the standard synctex files from Jérome Laurens.
780 ==============================================================
781 Luatex beta-0.66.0 was released 20110412
782 ==============================================================
786 * fixed: linebreak_filter doesn't do its default job when
787 tex.linebreak is used
789 * fixed: \escapechar ignored by \meaning
791 * fixed: wrong px default
793 * fixed: font kern attribute inheritance
795 * fixed: "nop" unrecognized in virtual fonts
797 * fixed: assertion failure in dviluatex when font ptmr8t used
799 * fixed: tex.settoks for with strings with embedded zeroes
801 * fixed: an indexing problem with nonexistent font glyphs
803 * fixed: some crashes and other bugs on the 'subtype' and 'prev'
804 fields (not all node types have those fields)
806 * fixed: crash on token.csname_id ("")
808 * fixed: initialize the statically allocated node's type ids
810 * fixed: fencepost error in math parameter counting
812 * fixed: math family numbers > 255 are allowed
814 * fixed: compilation failure on Hurd
816 * fixed: a small bug leading to displacements when reading
819 * fixed: \directlua followed by \pdfximage generates error if
822 * fixed: a problem with \vadjust pre in alignments
824 * fixed: a lua stack growing problem in the backend in 0.65.0,
825 resulting in an inability to create more than a few thousand
828 * fixed: inclusion of Scribus-generated pdfs
830 * adapt: the default form margin is now zero (was 1bp before)
832 * adapt: libpng 1.4.4, zzuplib 0.13.60, mplib 1.504
834 * adapt: small changes to the build system and new imports from
835 the texlive repository
837 * feature: new function node.currentattr() queries the current
838 active attribute list
840 * feature: Lua font loading; ignore unknown enumeration keys in
843 * feature: JPEG 2000 image support
845 * feature: continuing work on the 'epdf' library
847 * doc: the 'epdf' lua library is now documented
849 * doc: various other manual corrections
852 ==============================================================
853 Luatex beta-0.65.0 was released 20101213
854 ==============================================================
858 * The Aleph and Omega version primitives are deprecated.
860 * The Apple Snow Leopard Truetype font collections now work
863 * Libpng has been updated to 1.4.4, and zlib to 1.2.5.
865 * New lua functions node.next() and node.prev().
867 * The already deprecated for some time node.protrusion_skipable()
868 function has been removed.
870 * fontloader.apply_featurefile() and fontloader.apply_afmfile()
871 now return nil,<errortable> on failure.
873 * The various node list fields in the lua node interface have
874 been renamed from 'list' to 'head', e.g. tex.box[0].head,
875 and the 'list' name is deprecated. For now, the deprecation
876 is silent, as 'list' will stay for quite some time. Please
877 update your lua source as soon as possible, though.
879 * The call node.type(<node>) now returns "node". The existing
880 functionality is otherwise unchanged.
882 * Luafilesystem has been updated to 1.5.0. NOTE: there is an
883 incompatible change in the directory iterator method.
885 * The restriction on linebreak_filter has been eased: at least one
886 horizontal box should be returned, but that is not necessarily
887 the last node any more.
889 * Backward compatibility has been restored for \meaning\mathchar
891 * node.first_character() has been renamed to node.first_glyph()
892 to better match its actual functionality.
894 * The \Umathaccent primitive now supports both/bottom keywords,
895 and \Umathbotaccent / \Umathaccents are now deprecated.
897 * The \Umathaccent primitive now also supports the fixed keyword,
898 which supports non-growing math accents even if the font says
899 there are extensible variants.
901 * Ongoing work on the epdf library.
905 * Assignment to \dimen65535 was broken earlier.
907 * <box>.head.prev is now always initialized to null (0).
909 * luatex -lua=<script> '\relax' no longer exits immediately,
910 instead going into interactive mode as it should.
912 * The \jobname was initialized wrongly for input file names
913 with multiple dots in them.
915 * The synctex file is now written in the right place when
916 --output-directory is given.
918 * \letterspacefont could cause crashes, especially when combined
921 * Luatex would crash on linux32 systems if it was build in an
922 environment where LFS (>2GB files) was enabled by default.
924 * Node lists created by node.copy_list() could not be hyphenated
925 due to an assertion error.
927 * Synctex support was partially broken since 0.60.0.
929 * With OpenType math fonts, accents with multiple parts
930 (like the \vec arrow) forgot to include all parts if the
931 accentee was too narrow.
933 * With OpenType math fonts, accents over any class except 0 and 7
936 * kpse.lookup("plain", {all = true}) was broken in kpathsea
937 itself (no extension given as well as --all specified).
939 * A FontForge bug made Cambria Math accents look bad, and the
940 placement of math top accents did not allow a marker at the
941 origin (patches by Stefan Philipp)
943 * Cut&Paste from PDF was sometimes broken due to bad ToUnicode map.
945 * Many small manual improvements (thanks to Paul Isambert)
947 * An other bugfix to lpeg 0.9 (from Roberto Ierusalimsky)
949 * Some small fixes to writet1.w (from Han The Thanh)
951 * A build failure because of bad libz configuration on Win32
953 ==============================================================
954 Luatex beta-0.64.0 was released 20101112
955 ==============================================================
959 * New lua functions pdf.refobj(), pdf.maxobjnum() and pdf.objtype()
961 * New lua function node.is_node()
963 * The max_strings configuration variable's maximum value is
964 raised to be identical to texlive's maximum (2097151), and
965 same for param_size (32767).
967 * The embedded mplib is now 1.503.
969 * Minor cleanups in the output of fontloader.to_table():
971 - removed out-of-range altuni's from the output
972 - don't dump the extra encodings, just the actual font encoding
973 - export the encoding's name also as 'enc_name' at one level up
974 - no longer exporting unset macstyles, nor zero uniqueids
975 - fix creationtime and modification time
977 * Ongoing work on the epdf library
981 * Fix a bug where an explicit hyphen prevented hyphenation for the
982 whole rest of the paragraph
984 * Internal font copying forgot to copy the last font dimen
986 * os.selfdir() is now documented
988 * patch quad (\fontdimen6) in \letterspacefont to be compatible
991 * Multi-page pdf inclusion was very slow in 0.63.0
993 * Some extra checks added to the handling of glue_spec node
996 * Some node.prev pointers have been corrected (but this is not
999 * A small fix to lpeg 0.9.
1002 ==============================================================
1003 Luatex beta-0.63.0 was released 20100909
1004 ==============================================================
1008 * Drop tex.ht[], tex.wd[], tex.dp[].
1010 * Drop OCP support (and associated primitives).
1012 * Add tex.catcode[], tex.lccode[], tex.sfcode[], tex.uccode[],
1013 tex.mathcode[] and tex.delcode[] and associated functions.
1015 * Add CIDset tables to the output pdf where appropriate.
1017 * Added a 'string' field to late_lua nodes on the lua side. This
1018 field does not convert the assigned string to a tokenlist.
1020 * The result of fontloader.open() now has some virtual accessors
1021 (as well as fontloader.to_table).
1023 * There is now a `short reference' in the manual folder
1028 * Fix a crash on an empty font (bugreport #468).
1030 * Fix a crash for extremely long pattern arguments.
1032 * Fix a crash on bad virtual character arguments in lua.
1034 * Fix hyphenation exceptions.
1036 * Prevent linebreak between initial local_par paragraph whatsit
1037 and a following skip (bugreport #437).
1039 * Fix placement of scripts on textstyle big operators in MATH
1040 fonts (bugreport #466).
1042 * Fix a crash on the return value of MPlib's 'postscript'
1043 operation on images.
1045 * Fix a crash on \leftghost & \rightghost in math mode.
1047 ==============================================================
1048 Luatex beta-0.62.0 was released 20100823
1049 ==============================================================
1053 * LuaTeX now uses libpoppler (0.12.4) instead of xpdf.
1055 * All backend functions now report what file they were searching
1056 for whenever a file cannot be found.
1058 * Input-ed lua files are now mentioned in the fls file if
1059 the --recorder switch is specified on the command line.
1061 * Paragraph indentation hlist nodes and hlist and vlist nodes
1062 generated by alignment rows and cells now have a subtype
1063 (3 for indent box, 4 for rows/columns, 5 for cells).
1065 * The 'epdf' lib is in active development and still growing.
1067 * The 'fontforge' table is finally removed (was deprecated
1072 * A new mplib import fixes two bad bugs in mplib:
1073 - string equality test was wrong
1074 - type declarations could delete pre-existing variables
1076 * PNG images with transparency could create random size
1077 differences in the generated PDF.
1079 * In some special cases, font expansion could cause wrong
1080 spacing in the generated PDF.
1082 * \letterspacefont was broken since a very long time.
1084 * The node subtype of the \leftskip and \rightskip glues was
1087 * Some memory leaks have been removed.
1089 * Various manual fixes.
1091 ==============================================================
1092 Luatex beta-0.61.0 was released 20100728
1093 ==============================================================
1097 * New lua library 'epdf' for introspection of PDF inclusions,
1098 see the manual for details.
1100 * Mplib version 1.502 is now included (which is still beta,
1103 * new "finish_pdffile" and "pre_dump" callbacks.
1105 * new function pdf.pageref()
1107 * In the lua 'tex' library: assignment to internal glue
1108 parameters is now allowed.
1110 * New lua function tex.error().
1114 * Fix for crashes on fonts with bad Panose values.
1116 * Fix for a box placement bug that could sometimes cause text
1119 * Fix for a few small PDF/A1-a compatibility bugs.
1121 * Fix \letterspacefont.
1123 * Fix \Ustopdisplaymath in combination with aligned displays.
1125 * In math delimiters, the last of a chain of predefined sizes
1126 was always ignored if there were also extensible parts.
1128 ==============================================================
1129 Luatex beta-0.60.2 was released 20100701
1130 ==============================================================
1134 * Various small portability fixes, especially for non-gcc
1137 * Updated synctex from Jerome Laurens.
1139 * fix bug #406: \pdfliteral hinders hyphenation.
1141 * fix pdf overprinting bug (related to \pdfliteral).
1143 * patch from Akira Kakuto that ensures that only absolute commands
1144 that are inside the %PATH% will be executed in win32's restricted
1147 * fix a buffer overflow in luafontloader.
1149 * fix cross-platform share-ability of generated formats.
1151 * fix a few typos in the manual.
1153 * fix trashing of the null glue spec by attribute reference code.
1155 * documented the deprecated state and brokenness of otp processing.
1158 ==============================================================
1159 Luatex beta-0.60.1 was released 20100428
1160 ==============================================================
1164 * renamed node.skipable() to node.skippable().
1166 * More git discovery patches in getluatexsvnversion.sh.
1168 * Added --warnings=[no|min|yes|max|all] option to build.sh.
1170 * While cross-compiling, build.sh now adds an extra linker switch
1171 to allow win32 exes to use 3G instead of 2G of virtual memory.
1175 * os.exec() & os.spawn() handled the environment differently from
1176 os.execute() on Win32 (patch from Tomek)
1178 * Builds with --enable-ipc were broken.
1180 * Assigning and acquiring \fontdimen s from TeX code was broken.
1182 * An initial attempt at fixing bug #372 (\predisplaydirection).
1184 * An attempt to fix \eqno/\leqno placements in mixed direction
1187 * Our local xpdf patch is reverted, it is not needed any more.
1189 * The os.selfdir variable was not documented, as well as broken
1192 * Fix "\input tikz hello \bye" bug, plus fix one sign error.
1194 * Fix handling of lua script files with UNC names.
1196 ==============================================================
1197 Luatex beta-0.60.0 was released 20100404
1198 ==============================================================
1202 * os.name now knows about CYGWIN (from Elie Roux)
1204 * Internal handling of direction specifiers is faster now.
1206 * Each glyph node now has three new virtual read-only fields:
1207 width, height, and depth (values in scaled points, of course)
1209 * There are new functions node.protrusion_skipable() and
1210 tex.badness() (useful for paragraph breaking in lua)
1212 * Also new: tex.linebreak(). See the manual for details.
1214 * All lua errors now report file and line numbers to aid in
1217 * Import of metapost 1.211.
1219 * pdf.pdfcatalog will be replaced soon by the new pdf.catalog
1220 pdf.pdfinfo will be replaced soon by the new pdf.info
1221 pdf.pdfnames will be replaced soon by the new pdf.names
1222 pdf.pdftrailer will be replaced soon by the new pdf.trailer
1224 * pdf.pdfmapfile and pdf.pdfmapline are replaced by the new
1225 pdf.mapfile() and pdf.mapline() functions. (a function interface
1226 fits these parameters better because they never return anything).
1228 * New read-write lua variables: pdf.pageattributes, pdf.pageresources,
1231 * getluatexsvnversion.sh now correctly detects git-svn and still
1232 manages to find a valid SVN revision number (from Patrick Gundlach)
1234 * Many of the source files have been converted to CWEB.
1238 * GNU libtool is now used to solve the various technical issues with
1239 dynamic loading of lua modules.
1241 * Error detection in scan_integer_part was wrong due to missing
1242 initialization of OK_so_far (spotted by Javier Mugica)
1244 * Synctex was broken in 0.51-0.52.
1246 * \lastlinefit was broken since ... well, nearly forever.
1248 * Reading of binary files with length zero was broken.
1250 * Trapping of unitialized rules (this was for sloppily created
1251 rule nodes from lua)
1253 * pdf.immediateobj('streamfile') was broken on 64-bit platforms.
1255 * tex.linebreak did not take the given left and right skip, but
1256 instead used the current TeX-side values (bug #356).
1258 * the found 'MAKE' command in build.sh is now fed into configure to fix
1259 problems with that not finding GNU make even when it is actually
1262 * dofile(<nil>) and loadfile(<nil>) in batch mode now give an
1263 error and continue instead of pointlessly waiting for user input.
1265 * Reverted commit #3417 (the buildpage experiment) as it causes bad
1266 things to happen when items are waiting during page breaks.
1268 * Overrule loaders[4] in --safer mode, make require() behave
1269 closer to normal lua 5.1, and add some nicer error messages
1270 (based on an email and patches from Manuel Pegourie-Gonnard)
1272 * Added an extra sanity check for GDEF loading in luafontloader,
1273 based on a crash caused by Linux' AkaashNormal.ttf.
1276 ==============================================================
1277 Luatex beta-0.52.0 was released 20100316
1278 ==============================================================
1282 * Various small manual improvements.
1284 * A better version of getluatexsvnversion.sh, from Tomek.
1286 * node.copy_list() now allows the second (optional) argument to
1289 * An import of the current state of the texlive repository
1290 (kpathsea and build system).
1294 * An attempt fix for bug #345 (math kerning is not perfect): when the
1295 current math font is a new math font, check against \catcode <cur_c>
1296 == 11 to suppress the italic correction, instead of looking at
1297 the value of space(<cur_f>).
1299 * There is a new <tfmtable> key: 'units_per_em' (defaults to 0).
1300 This is part of a fix for bug #200 (Problem with CFF fonts having
1301 em-size other than 1000): there is a special correction to the
1302 embedded cff font itself and the font scale if the font to be output
1303 is opentype or type1 in unicode encoding and the 'units_per_em
1305 <tfmtable>.units_per_em has to be passed back to luatex from
1306 the lua font loading code for this to work.
1308 * A fix for bug #314 (problem with pk file).
1310 * lua code can no longer change the internal preallocated glue_spec
1311 nodes (as that resulted in weird spacing bugs). For this, glue_specs
1312 now have a new field: 'writable'. If that field is false, a copy
1313 has to be made of the glue_spec instead of doing an assignment
1316 * Setting of \textdir inside the output routine could trash output
1317 on following pages due to a lingering internal variable.
1319 * \pdfthread crashed because the arguments were handled in reverse
1322 ==============================================================
1323 Luatex beta-0.51.0 was released 20100312
1324 ==============================================================
1328 * Various small manual improvements.
1329 * The backend message "cannot open Type 1 font file for reading"
1330 now reports which Type1 font it was looking for.
1331 * Fontforge clears some font names at loading time that will be
1332 refilled in at font generation time, but the fontloader should not
1333 do that. Patch from Khaled Hosny.
1334 * New synctex code imported from TeXLive.
1335 * luamd5/md5.h is renamed to luamd5/luamd5.h to avoid confusion.
1336 * Embedded mplib is now 1.209.
1337 * Some experimental tweaking of buildpage_filter, see the manual
1339 * Luatex now detects kfreebsd (from Alan Braslau)
1340 * The new lua function tex.sp() converts a string to a number
1341 representing scaled points.
1342 * There is now support for revision numbers in the banner and stats
1344 * The command line help and manual documentation page is extended.
1345 * node.hpack() now also accepts "cal_expand_ratio" and "subst_ex_font"
1347 * node.hpack() and node.vpack() now give back the badness of the box
1348 as second return value.
1349 * node.copy_list() now allows a second (stop) argument, this stopper
1351 * new lua functions in lfs: lfs.readlink() and lfs.shortname().
1352 * new lua function tex.tprint() that can combine multiple catcode
1353 regime prints in one function call.
1354 * new lua sub-table: tex.nest[] (read/write access to the semantic
1356 * New lua functions in kpse: kpse.lookup() and kpse.version(). See
1357 the manual for more details.
1358 * New lua function tex.shipout().
1362 * There problems in the pdf output for Type3 (pk) fonts.
1363 * Fix a bug that allowed bad commandline quoting.
1364 * Fix a bug that sometimes caused crashes when \pdfprotrudechars.
1365 * The build script now exports CONFIG_SHELL to avoid problems with
1367 * The was a bug in the generated /Image /ProcSet.
1368 * status.font_bytes reported the wrong value.
1369 * Lots of compiler warnings are removed (thanks Javier Mugica).
1370 * Patch to fontloader.info() to accept filenames with embedded
1372 * Fix a \write error with docstrip package.
1373 * Fixed a crash on AdobeMyungjoStd-Medium.otf.
1374 * Fix coco stack overflows, needed for lpeg.
1375 * \pdfcompresslevel wasn't initialized for early immediate objects.
1376 * Fix for slanted fonts when HZ was on (slant angle was multiplied).
1377 * When concatenating content streams, put a space between them.
1378 * Allow pfb lines to end with \r as well as \n (for msam10.pfb).
1379 * Fix the internal string->scaled point conversion in the lua
1381 * Memory leaks in the fontloader removed, thanks to patches from
1383 * Fix a crash caused by the combination of coroutines and font.each().
1387 * Support for Type3 .pgc files (nobody used them).
1389 ==============================================================
1390 Luatex beta-0.50.0 was released 20091224
1391 ==============================================================
1395 * Fonts now listen also to the 'extend' key in the lua font
1396 metrics table, and the processing for this is done via de
1397 pdf text matrix instead of via the font matrix, which means
1398 it now works for all font types.
1400 * The embedded Metapost library is now at version 1.209.
1404 * It is no longer possible for fonts from embedded pdf files
1405 to be replaced by / merged with the document fonts of the
1406 enveloping pdf. This regression may be temporary, depending
1407 on how the rewritten font backend will look after beta 0.60.
1411 * Use of \middle confused the \mathstyle operation.
1413 * \pdfcolorstack handling was broken.
1415 * node.unset_attribute() had a bug whereby it inverted the
1416 requested result in some cases (the node on which the unset
1417 was called was sometimes the only node at the current level
1418 that *kept* the attribute).
1420 * During font expansion, the internal font copy had one character
1421 information object less than the original, resulting in the
1422 disappearance of a glyph in some fonts when font expansion
1425 * Placement of operator scripts of OT MATH fonts is adjusted
1426 to be conformant with Word's logic where the italic correction
1427 is only used to tuck in the subscript and for nothing else.
1429 * luafontloader.open() no longer writes directly to stderr in
1430 case of internal font errors.
1432 * Any <pdf_refobj_node>.objnum could not be assigned to.
1434 * The lua 'pdf' table could not be assigned to.
1436 * The lua 'md5' library was returning incorrect results on
1437 64-bit architectures.
1439 * Luatex now compiles on GNU Hurd systems.
1441 * Fix segfault when embedding stream file object (these
1442 backend segfaults were a side-effect of the string pool
1445 ==============================================================
1446 Luatex beta-0.47.0 was released 20091218
1447 ==============================================================
1451 * New read-write lua variables pdf.pdfcatalog, pdf.pdfnames,
1452 pdf.pdfinfo, pdf.pdftrailer
1454 * The horizontal mode nodes that are added to lines during line
1455 breaking now inherit the attributes from the first and last node
1456 inside the created line.
1458 * The new function pdf.registerannot(<number>) registers an
1459 annotation object number to be included in the current
1460 page's /Annots list.
1462 * The variables <metrics>.Mathconstants.FractionDelimiterSize
1463 and <metrics>.Mathconstants.FractionDelimiterDisplayStyleSize
1464 are added to the font table. This allows proper setting of the
1465 size parameters for TeX's ...withdelims math primitives.
1467 * The internal representation of the string pool is reorganized
1468 (the pool of string characters is now allocated dynamically),
1469 and as a side-effect the lua variable status.init_pool_ptr
1470 is deprecated and will be removed in a later version. Also,
1471 status.pool_ptr now simply returns the current number of bytes
1472 in use for string characters.
1474 * There are new lua variables pdf.pdfmapline and pdf.pdfmapfile
1475 (write-only strings that mimic \pdfmapline and \pdfmapfile).
1477 * \pdfobj data and attribute are now stored as C strings instead
1478 of as token lists (this should speed up cases with a lot of data).
1480 * Artificially slanted fonts now work via the pdf text matrix
1481 (instead of adjusting the actual font) so that it now also
1482 works for non-Type1 fonts. The lua <metrics>.slant font key is
1483 now obeyed in all cases.
1485 * The lua function font.id(<string>) returns the internal font id
1486 number belonging to a control sequence name.
1488 * Pdf image inclusion is optimized such that objects from an
1489 external pdf will now be included only once even if they are
1490 referenced from multiple inclusions.
1494 * Protrusion for non-TLT documents did not work properly for
1495 the hyphenation character.
1497 * \lastbox could not remove the paragraph indent box for non-TLT
1500 * Pdf images (\pdfximage) are no longer kept open during the
1501 whole run, but closed and reopened. An error is raised if
1502 the file has changed between \pdfximage and \pdfrefximage.
1503 This prevents the 'too many open files' error when lots of
1504 images are included.
1506 * On Win32 Pdf image files are locked during the time that it is
1507 open, to prevent unnoticed file changes by external sources.
1509 * Compilation now again works on FreeBSD.
1511 * Format sharing between 32-bit and 64-bit architectures was
1514 * Unsetting attributes from lua could sometimes result in
1515 the unset state persisting beyond the current group level.
1517 * If something went wrong in the scanning of pdf action items,
1518 the error message reported the current primitive name
1521 * Luatex would crash on non-existant pdfs that were referenced
1522 from map file entries.
1524 ==============================================================
1525 Luatex beta-0.46.0 was released 20091126
1526 ==============================================================
1530 * The build.sh script now has better support for new MacOSX-es
1533 * Luatex now has experimental support for dynamic loading of
1534 external compiled lua libraries. Building luatex and loading
1535 external .so/.dll files is reported to work on Windows,
1536 linux and osx, other platforms are still unknown.
1538 * pdf.obj{type="stream"} no longer converts its argument to and
1539 from a tokenlist. This allows the use of binary data in the
1540 "string" argument. Such data does still have to hidden from
1541 the normal file parser by putting the code in a dofile()
1542 or by using string.char(), though.
1546 * Luatex 0.45.0 was not able to find truetype nor opentype fonts
1547 if there were no callbacks defined (patch from Pawel).
1549 * 0.45.0 printed the user input instead of the full pathname
1550 for \input-ed tex files.
1552 * The TFM reader now rejects fonts with tfm names that are
1553 longer than 255 characters because such font names cannot
1554 be stored in a DVI file.
1556 * The combination of \immediate\pdfxform followed by a later
1557 \pdfrefxform could cause broken pdf output files because
1558 the box used for the form could have been freed and even
1559 reused already at that moment in time, sometimes resulting
1560 in an invalid transformation matrix.
1562 * The placement of super- and subscripts for displaystyle
1563 \int's in CambriaMath is now better than before. It still
1564 needs a tweak to the metrics though: in the current version,
1565 the italic correction has to be substracted from the width
1566 of the integral sign to get correct placement (context mkiv
1567 does this). to be continued ...
1569 ==============================================================
1570 Luatex beta-0.45.0 was released 20091118
1571 ==============================================================
1575 * Loading big OTF fonts via lua is now much faster than before,
1576 at the expense of a bit of precision loss in the calculated
1579 * Two new token lists are provided: \pdfxformresources and
1580 \pdfxformattr, as an alternative to \pdfxform keywords.
1582 * \input and \openin now accept braced filenames.
1584 * The \endlinechar can now be set to any value between 0 and 127.
1586 * Luatex can now optionally use kpathsea to find lua require()
1589 * The new primitives \aligntab and \alignmark are aliases for
1590 the use of & and # in alignments.
1592 * \pdfrefximage [width <dimen>] [height <dimen>] [depth <dimen>] <imageref>
1593 overrules settings from \pdfximage for this \pdfrefximage call only
1595 * The print precision for small numbers in lua code (tostring)
1598 * Akira Kakuto suppled a patch that restricts writing to files
1599 with names such as latex.bat etc. (on windows only)
1601 * (un-feature): from now on luatex now only handles 4 direction
1602 specifiers: TLT (latin), TRT (arabic), RTT (cjk), and LTL
1603 (mongolian). The other directions now generate an error.
1605 * (un-feature): xpdf's automatic lower- and uppercasing retry attempts
1606 for nonfound image pdf files has been removed.
1608 * The callbacks hpack_filter, vpack_filter and pre_output_filter
1609 pass on an extra string argument for the direction, when known
1610 (nil == use default).
1612 * The lua functions node.hpack(), node.vpack() and node.dimensions()
1613 now accept an optional direction argument (not given == use default).
1615 * \pdfrefxform [width <dimen>] [height <dimen>] [depth <dimen>] <formref>
1616 scales a form object; similar principle as with \pdfximage: depth alone
1617 doesn't scale, it shifts vertically.
1619 * A change to the relative ordering inside font name discovery for use
1620 by the backend: now it tries <f>.psname first, as that is much less
1621 likely to contain spaces.
1623 * For ttc fonts, now the used subfont name and its index id are printed
1624 to the terminal, and if the backend cannot find a ttc subfont, the
1629 * Prevent crashes for lua-loaded fonts without a (tfm) name.
1631 * Remove spurious newlines in the output pdf that could be the
1632 result of using \pdfximage for an included pdf figure too early.
1634 * Full font embedding for wide otf and ttf fonts now really
1635 works (older versions only pretended that it did work).
1637 * node.dimensions() sometimes continued past the 'stop' node.
1639 * Images inside virtual fonts were broken.
1641 * The processing of \language=-1 was wrong, resulting in
1642 hyphenation attempts even though there was no proper language
1645 * Fix for finding files in --output-directory.
1647 * Fix for handling of --file-line-error.
1649 * tex.box[] assingments are now checked to make sure the assigned
1650 node has the right id (hlist or vlist).
1652 * show_node_list (as in \showbox) produced spurious local_par
1653 whatsit prints in the output after direction nodes.
1655 * The handling of pdf literals has been sped up.
1657 ==============================================================
1658 Luatex beta-0.44.0 was released 20091027
1659 ==============================================================
1663 * libpng is now 1.2.40.
1665 * hlist nodes now have a subtype to distinguish hlists generated
1666 by the paragraph breaking, explicit \hbox commands, and other
1667 (as-yet-undefined) sources.
1669 * \pdfobj now has an extra optional keyword: 'uncompressed',
1670 which forces the object to be written to the PDF in plain
1671 text (see the manual for the exact details).
1673 * The lua file from the luamd5 library (which provides the
1674 md5.hexsuma() function) is now embedded in the executable.
1678 * \latelua now works in DVI mode again.
1680 * status.output_file_name could crash when used too soon.
1682 * In 0.43, rules were not output at all in DVI mode.
1684 * \leavevmode\penalty-10000\penalty-10000 crashed luatex.
1686 * the API of margin kern nodes to lua was using the wrong
1687 fields in the nodes.
1689 * A few fixes to the manual.
1691 * PDF Xref stream dicts were slightly non-conformant.
1693 * There was too much space between two consecutive math displays
1694 (this bug was inherited from Aleph)
1696 * Synctex was broken (thanks, Akira)
1698 * Font mark classes were handled incorrectly by the fontloader
1701 * There was a crash possible with certain types of named PDF
1704 * Math delimiters and large operators in new MATH fonts no
1705 longer apply the italic correction (this fixes placements
1706 of super- and subscripts on such items for those fonts).
1708 * The converter from lua strings to token lists (for the node
1709 interface) sometimes generated invalid tokens.
1711 * CFF (OpenType) fonts now listen to 'embedding="full"'. TTF
1714 * Font tables with 'embedding="no"' would cause luatex to crash.
1716 * \pdfobj file {} failed to find the file if there was no lua
1719 * An optimization in MS Mincho caused luatex to crash.
1721 ==============================================================
1722 Luatex beta-0.43.0 was released 20090819
1723 ==============================================================
1727 * There is a new allowed key in the table trhat is returned
1728 by lua-loaded fonts: <f>.psname. This value should be set
1729 to the original PostScript font name of the font. Fonts inside
1730 dfont and ttc collections are fetched using this field
1731 (if it is missing, <f>.fullname will be used instead).
1733 * It is now possible to use Apple dfont font files
1734 (those that contain at least one outline font).
1736 * \latelua is now allowed inside leaders.
1738 * There is a new callback: process_output_buffer, from Manuel
1739 Pégourié-Gonnard. This callback is called just before
1740 \write acts, so it can be used to alter the file encoding
1741 of text output files.
1743 * There is a new node.dimensions() function, which calculates
1744 the natural size of (part of) a list of nodes.
1746 * The new primitive \gleaders provides 'globally aligned'
1749 * The DVI and PDF backends now share much code internally.
1751 * The embedded MPlib is now 1.207.
1753 * libpng is now 1.2.39.
1757 * We fixed lots of anonymous bugs introduced in 0.42.0 (as expected)
1759 * fontloader.info() errors are no longer fatal, the function now
1760 just returns a nil,"error string" pair.
1762 * Automatically inserted kerns for \accents are now once again
1763 valid word ends, as in \TEX.
1765 * Fixed the placement of math displays in mixed direction
1768 * The \pdfcompresslevel is now dynamic again.
1770 ==============================================================
1771 Luatex beta-0.42.0 was released 20090717
1772 ==============================================================
1774 * There is a new node.tail() function
1776 * lua-loaded fonts now support a 'nomath' key to speed up
1777 loading the lua table.
1779 * A bugfix in the ttf reader for the inclusion backend, and
1780 (also in the backend) support for treating ttc files by
1781 pretending they are single ttf fonts (both patches from pdftex)
1783 * Add Khaled Hosny's man page to the repository
1785 * The \pdfcompresslevel is now effectively fixed as soon as
1786 output to the pdf file has occurred.
1788 * Patched status.filename so that it (nearly) always returns a
1791 * fix '\the\delcode' and disable '\the\odelcode', '\the\Udelcode',
1792 and '\the\Udelcodenum'
1794 * Handle jfifs where either xres or yres is 0 and the other
1795 res is != 0 (from pdftex)
1797 * The single-argument version of lang.hyphenate() was broken.
1799 * Get rid of the \directlua/\latelua number warning.
1801 * The Lua coroutine patch (coco) is now disabled on linux
1802 powerpc architectures (because it caused crashes)
1804 * Removed obsolete pdftex primitives:
1805 \pdfoptionalwaysusepdfpagebox
1806 \pdfoptionpdfinclusionerrorlevel
1810 * The loading speed of large fonts (especially ttf) via the
1811 fontloader library, and the inclusion speed for subsetting
1812 in the backend have both been improved.
1814 * The 'pdf' lua library has been enhanced with various new
1815 functions, see the manual for details.
1817 * BLT and BRT glyph position fixed.
1819 * Various fixes for synctex offsets.
1821 * Support for exotic font string encodings has been removed
1822 from the fontloader library.
1824 * The embedded MPlib is now 1.205.
1826 * libpng is now 1.2.38.
1828 ==============================================================
1829 Luatex beta-0.40.6 was released 20090625
1830 ==============================================================
1832 * Fix two string vs. toks bugs in the lua node interface:
1833 whatsit,annot and whatsit,startlink data assignments were
1834 made directly as strings instead of being converted to tokens.
1836 * Sometimes pdf.print() could be used before the proper structures
1839 * There was a bug in the type codes for the lua package filter
1840 callback: wrong extra info was passed to lua for the alignment
1843 * The math parameters \Umathlimitdownvgap, \Umathlimitdownbgap,
1844 and \Umathlimitdownkern have been renamed to \Umathlimitbelowbgap,
1845 \Umathlimitbelowvgap, and \Umathlimitbelowkern to be more
1846 consistent with the other parameter names.
1848 * The embedded MPlib is now 1.204.
1850 * Handling of UTF-8 hyphenation exceptions has been fixed.
1852 * There were a number of typos in the manual.
1854 ==============================================================
1855 Luatex beta-0.40.5 was released 20090610
1856 ==============================================================
1858 * One of the internal print functions accidentally encoded its
1859 argument string to UTF-8 even though it was already UTF-8.
1861 * Some of the log and terminal UTF-8 output was gibberish.
1863 ==============================================================
1864 Luatex beta-0.40.4 was released 20090609
1865 ==============================================================
1867 * \the\textfont0 returned a number instead of doing a font
1870 * The embedded MPlib is now 1.203.
1872 ==============================================================
1873 Luatex beta-0.40.3 was released 20090608
1874 ==============================================================
1876 * A set of portability fixes for the AIX compiler from Vladimir
1879 * A set of fixes to the synctex support.
1881 * A patch to the build script to prevent installed X11 headers
1882 from being required.
1884 * Some weave (web syntax) fixes from Manuel Pégourié-Gonnard.
1886 * A simplification in luatex.ch (it is now less verbose
1887 about the web2c-specific extensions) from Karl Berry.
1889 * A fix in the handling of UTF-8 (input) file names.
1891 * Hyphenation exceptions were case sensitive in 0.40.2.
1893 * libpng is now 1.2.37.
1895 ==============================================================
1896 Luatex beta-0.40.2 was released 20090603
1897 ==============================================================
1899 * Fix for a compilation warning under Cygwin.
1901 * A complicated bugfix by Hartmut for a rounding problem in the
1902 VF loading that resulted in 'character width mismatch in font
1903 XY.vf ignored' messages at large load sizes
1905 * The embedded MPlib is now 1.202.
1907 * The post_page_number callback was accidentally run when
1908 shipping out xforms as well as during actual pages.
1910 * When a math accent char doesn't have a bot_accent placer,
1911 luatex now uses the top_accent placer, if present.
1913 * A crash caused by \Uroot .. {<list>}{...} is fixed
1915 * A portability fix for solaris 8 sparc using sun studio
1916 compiler, and one for glibc > 2.9.90
1918 * luatex -ini now sets the \catcode of the BOM character to
1921 * Kpathsea is updated from TeXLive, giving four extra types of
1922 searchable files: 'font feature files','cid maps','mlbib',
1925 * libpng is now 1.2.36
1927 ==============================================================
1928 Luatex beta-0.40.1 was released 20090508
1929 ==============================================================
1931 * Vertical placement of root radicals and degrees is fixed.
1933 * The use of \pageleftoffset could deviate from \hoffset
1936 * LuaTeX now issues a warning if \pagedir !- \bodydir during
1939 * The previous crash in font.read_tfm() was still not quite
1942 * The Web2C version is now also printed in the --version
1943 and --credits output.
1946 * There is a new MPlib 1.200 release candidate with a few minor
1949 * The xpdf library is updated to patch level 3.
1951 * New imports to the build system, from texlive. In particular,
1952 there is now configure-level support for building with
1953 libpoppler and support for building under cygwin 1.7 is added.
1955 ==============================================================
1956 Luatex beta-0.40.0 was released 20090422
1957 ==============================================================
1959 * The embedded MPlib is updated to version 1.200.
1961 * Texlua would crash if run font.read_tfm() was used.
1963 * Luatex would crash on empty \patterns.
1965 * Lots of small C code cleanups.
1967 * \textdir inside a \hbox dir *** was wrong earlier.
1969 * 0.39.0 introduced a bug that would make luatex crash whenever
1970 font expansion was used.
1972 * Font tables returned by define_font can now have a key named
1973 'cache' that controls the internal lua font table caching.
1975 * There is no longer a need for an explicit --progname if there
1976 is no input file given.
1978 ==============================================================
1979 Luatex beta-0.39.0 was released 20090415
1980 ==============================================================
1982 * iniluatex will from now on start up with only the TeX82 primitives
1983 and \directlua, everything else has to be bootstrapped via
1984 tex.enableprimitives(). This change was planned for 0.40.0,
1985 but *now* is the time to test it.
1987 * A bugfix for \primitive in various expandable contexts,
1988 and \primitive now generates an error message when the
1989 argument is not actually a primitive's name.
1991 * There was a bug found in the math accent handling.
1993 * Large math operators are now treated like extensible characters
1994 in the sense that they can be composed of segments.
1996 * The extra assign- and restore tracing information from eTeX
1997 had a massive bug because of a dangling else in the pascal web.
1998 As a side-effect of fixing this bugs, all such potential errors
1999 in the pascal web have been fixed (for now).
2001 * The math parameters can now be set and queried from lua code
2002 via the new tex.setmath() and tex.getmath() functions.
2004 * Reflection in a \hbox was broken.
2006 * There was a leak of direction nodes in the paragraph builder.
2008 * The font backend now does a small peek to differentiate
2009 truetype and postscript style opentype fonts. This fixes
2010 the "Can't find CFF table" bug for otf's with truetype outlines.
2012 * Parameters and registers can now also be assinged to globally
2013 from lua (see the manual for details).
2015 * It is now possible to query the current math style while a
2016 formula is still being constructed by using the new read-only
2017 value \mathstyle. Associated is the new command \Ustack that
2018 is to be used as a prefix for {.. \over ..} and friends.
2019 See the manual for more information.
2021 * The embedded MPLib is brought up to date with the current
2022 metapost repository (version 1.110 and a few small patches).
2024 * Luatex can now handle two breakpoints inside a single ligature
2025 (like for the functional word of-f-ice). The solution is not
2026 perfect yet, but the chance of missed hyphenation points in
2027 actual documents should now be negligible.
2029 * Some speedups in the font loading code, and in the handling of
2030 pdf_literal nodes that are set from within Lua code.
2032 * Some source code and manual cleanup, as usual.
2034 ==============================================================
2035 Luatex beta-0.38.0 was released 20090410
2036 ==============================================================
2038 * tex.enableprimitives() had a bug were previously defined (but
2039 currently undefined) control sequences prevented the creation
2042 * The special calling format callback.register('name', false)
2043 not only disables the callback, but also the builtin code it
2044 is supposed to replace.
2046 * Empty \localleftbox and \localrightbox -es are now suppressed.
2048 * Support for <f>.MathConstants.SubscriptShiftDownWithSuperscript
2049 was added, to solve the lack of "sub2" in OpenType math.
2051 * Luatex now supports horizontal super- and subscript placement
2052 corrections via the OpenType MATH mathkern table. See the
2055 * node.write() no longer copies its argument node list before
2058 * There are six new primitives that are verbose forms
2059 of one and two byte special tokens:
2060 \Usuperscript \Usubscript
2061 \Ustartmath \Ustopmath
2062 \Ustartdisplaymath \Ustopdisplaymath
2064 * The attribute node leaks in math mode and alignmetns have been
2067 * The 11 simple math noads are now combined into a single "noad"
2070 * Static linking against libstdc++ is working once again.
2072 * There is a small fix in the keyword scanner to solve the
2073 problem of 'Runaway ... while scanning ???' that could happen
2074 for some primitives.
2076 * Lua now also has the "architecture independent bytecode"
2079 * Lua is updated to version 5.1.4 with coco patches 1.1.5, and
2082 * Some TRT/TLT backend bugs are fixed.
2084 * Various manual updates.
2086 ==============================================================
2087 Luatex beta-0.37.0 was released 20090331
2088 ==============================================================
2090 * Luatex now implements shell_escape = 'p', a new feature
2091 in web2c that intends to make \write18 more secure. As
2092 a side-effect, if luatex is used for typesetting, it will
2093 now also apply shell_escape = 'p' and shell_escape = 'f'
2094 to the lua functions io.popen(), os.execute(), os.exec(),
2096 Nothing has changed for the case where luatex is used as
2097 a script interpreter.
2099 * Attributes can now have negative values. The special value
2100 for 'unset' is lowered to -0x7FFFFFFF (it used to be -1).
2102 * The lua 'kpse' library now has an object-oriented interface
2103 as companion to the procedural interface. This is useful for
2104 e.g. controlling the discovery of mplib files.
2106 * The new internal integer parameter \outputbox allows setting
2107 of the output box number (default: 255, max: 65535)
2109 * The new primitives \Udelimiterunder and \Udelimiterover
2110 complete the set of 'StretchStacks' for OpenType Math.
2112 * Fixed a bug in font string conversions on the Macintosh that
2113 resulted in warnings about 'unaligned pointers being freed'.
2115 * Khaled Hosny spotted a bunch of manual errors.
2117 * There was bug in the width of math_accent objects when
2118 there were super- or subscripts attached to the accentee.
2120 * In PDF mode, TRT \leaders were bugged.
2122 * The source tree now uses the new texlive build system that
2123 Peter Breitenlohner created.
2125 * There is now a single build.sh instead of four separate
2126 ones. It has a few options:
2127 --make : only make, no make distclean; configure
2128 --parallel : make -j 2 -l 3.0
2129 --nostrip : do not strip binary
2130 --mingw : crosscompile for mingw32 from i386-linux
2131 --ppc : crosscompile for ppc osx on intel osx
2133 Note: --parallel still sometimes causes crashes due to
2134 timing errors, so use that option with care.
2136 * Many compiler warnings have been removed (but not all yet).
2138 ==============================================================
2139 Luatex beta-0.36.0 was released 20090323
2140 ==============================================================
2142 * The included fontforge code is stripped considerably, and
2143 the lua table to access the code is renamed to 'fontloader'.
2144 The old name ('fontforge') will remain present for a while,
2145 but will eventually go away.
2147 * New lua functions: tex.primitives(), tex.extraprimitives,
2148 tex.enableprimitives(). This is a prelude to a big change
2149 in the next beta: iniluatex will from now on start up with
2150 only the TeX82 primitives and \directlua, everything else
2151 has to be bootstrapped via tex.enableprimitives().
2152 See the manual for more details.
2154 * Support for multiple lua states has been removed, and at the
2155 same time support for adding name ids to lua chunks has been
2156 added. See the manual for more details.
2158 * More changes to the PDF backend to make it support non-latin
2159 directions (form and image placement, vertical typesetting,
2162 * The kpathsea library is updated. Highlights: cleaner build
2163 process (thanks to Peter Breitenlohner), cleaner mingw32
2164 (cross)compilation support, and a new reentrant API.
2166 * Some possible endless loops within extended delimiters in
2167 math mode are now trapped.
2169 * Movements inside VF font characters were considerably off
2170 due to a wrong conversion routine.
2172 * Error handling for \outer has been reinstated, but can be
2173 suppressed via the new primitive \suppressoutererror.
2175 * The new primitives: \suppresslongerror and \suppressifcsnameerror
2176 that can be used to suppress errors for \par in non-long macros
2177 and for non-expandable objects inside \ifcsname ... \endcsname,
2180 * New lua function: node.vpack() via a patch from Khaled Hosny
2181 that also improves error handling in node.hpack().
2183 * Fix the typo that caused \charic (instead of \charit)
2184 to be defined as a primitive.
2186 * Suppression of hyphenation via \hyphenchar\font=-1 now works
2189 * The lua functions tex.print(), tex.sprint(), tex.write() now
2190 accept an array of strings as well as vararg list of strings
2193 * A change to be build process: luatex.p is no longer split
2194 int smaller pieces before running the C compiler.
2196 * Melissa O'Neill contributed a bugfix to the Type1 font
2199 * A bunch of smaller bugfixes and cleanups (as usual).
2201 ==============================================================
2202 Luatex beta-0.35.0 was released 20090224
2203 ==============================================================
2205 * The math handling portions of LuaTeX are converted to C code,
2206 and extended to support Unicode math. There are a great many
2207 related changes, see the new Math chapter in the manual for
2210 * A nasty bug in the paragraph breaking routine was fixed.
2211 (All lines except the first one were believed to be wider then
2212 they really were. This affected which nodes were considered
2213 as active breakpoints)
2215 * Various changes to the PDF backend to make it support non-latin
2218 * Fixed the behaviour of the page offsets. Placement of the output
2219 on the physical page should now work correctly in all directions,
2220 both in DVI and PDF.
2221 There now are \pageleftoffset and \pagetopoffset primitives,
2224 * fontforge.apply_featurefile() was broken since 0.31.0
2226 * The lua profiler library is added.
2228 * The included lua filesystem library is now 1.4.1.
2230 * Reading of pk files fixed.
2232 * An optional space afer a <direction specifier> for \textdir c.s.
2233 is ignored from now on.
2235 * \bodydir and \pagedir can now be (re)set even after the first
2236 page has been output.
2238 * The new callback mlist_to_hlist can be used to intercept the
2239 normal conversion of math lists to horizontal lists.
2241 * The programs ttf2afm and pdftosrc are removed from the luatex
2242 distribution (these belong to pdftex).
2244 * fontforge.open() now uses much less memory when opening large
2247 * The included libpng is now 1.2.35.
2249 * Quite a lot of smaller bugfixes and cleanups (as usual).
2252 ==============================================================
2253 Luatex beta-0.31.3 was released 20081229
2254 ==============================================================
2256 This release has a bunch of updates from the development trunk
2257 (#1657-1670,1677,1678,1680,1685,1687).
2259 * Closing of files opened by \externalocp.
2261 * Fix for a locale-related bug that make PDF generation fail
2262 with a "Parsing CFF Dict failed" message when including
2265 * The included metapost is now version 1.102.
2267 * PDF rules in vertical modes in RL direction where output
2268 in the wrong direction
2270 * Fix for a crash on Apple fonts that contain a 'bsln' table.
2272 * The handling of the second argument to fontforge.open() was
2275 * The included libpng is now 1.2.34
2277 * Handling of ttc files on Windows was broken
2280 ==============================================================
2281 Luatex beta-0.31.2 was released 20081209
2282 ==============================================================
2284 Besides fixing building issues, this release has
2286 * A small fix for a crash that could happen when using
2289 * A fix in the format of fontforge.to_table output.
2290 (In 0.31.1 <font>.lookups was near-empty; the lookups
2291 were accidentally output as part of the gpos table).
2293 ==============================================================
2294 Luatex beta-0.31.1 was released 20081209
2295 ==============================================================
2297 fixed a bunch of compilation errors on various platforms, but
2298 with no other visible changes.
2301 ==============================================================
2302 Luatex beta-0.31.0 was released 20081205
2303 ==============================================================
2305 This is just an intermediate release so that some testing can be
2306 done on the updated fontforge embedding.
2308 * There are new fields being generated by fontforge.to_table(),
2309 and one or two old ones have been removed. These fields are /
2310 will be documented in the manual, but very briefly:
2312 - MATH table and associated information are now exported
2313 (the main reason for the new fontforge code)
2314 - Baseline data is now exported
2315 (perhaps usable in lua code)
2316 - Multiple Master / Glyph variation data is now exported
2317 (but useless, for now)
2318 - Mac Feature (AAT) information is now exported
2319 (perhaps usable in lua code)
2320 - If (lookup) names were saved via the PfED table, these
2321 will the exported instead of the default, generated names.
2322 (as requested by Yannis)
2324 * dfont is now treated as an archive format just like ttc
2325 when it comes to fontforge.info(). NOTE: that does not mean you
2326 can actually use them, because the backend doesn't know
2327 yet how to embed dfont fonts in the PDF, that is on the
2328 TODO list for the next big beta (0.40.0).
2330 * The executables are a lot larger than before. That is because
2331 much more of fontforge is included than before. Likely this
2332 will stay this way, because this makes upgrading the ff code
2333 much easier, and it means that luatex/FF potentially
2334 understands more font formats (after upgrading the backend,
2338 ==============================================================
2339 Luatex beta-0.30.3 was released 20081128
2340 ==============================================================
2342 This release fixes a really big bug, a few smaller ones,
2343 and has updates of png and mplib:
2345 * All hyphenation patterns that were anchored at the start or
2346 end of a word were ignored in luatex versions 0.25.X and 0.30.X
2347 (and possibly even earlier).
2349 * Repeated use of \language=-1 could result in "There is not room
2350 for another language".
2352 * The lua true coroutines patch (Coco) is now disabled on OpenBSD
2353 running on non-intel platforms.
2355 * The lua socket library is patched so that it will now compile on
2358 * Luatex now has libpng 1.2.33 and mplib 1.100
2360 ==============================================================
2361 Luatex beta-0.30.2 was released 20081020
2362 ==============================================================
2364 * The Lua coco change from 0.30.1 is reverted as it gave
2365 trouble on MacOSX. Lua coco on non-intel OpenBSD platforms
2366 is now explicitly turned off.
2368 * The lua file reading speedup in 0.30.1 broke reading of
2369 files larger than 100MB.
2371 * Reading of font-related files was broken when there was a find
2372 callback, but no read callback.
2374 * The texmf.cnf array size setup values were ignored whenever
2375 --lua was given on the commandline (instead of only when
2376 texconfig.kpse_init is set to false).
2378 * glyphs with negative widths resulted in incorrect horizontal
2379 placement (overlapping) of the string in the output PDF.
2381 * Using \latelua could sometimes result in an invalid output PDF,
2382 and the argument token list was expanded too early
2384 * There was a read buffer overrun in the mapfile parser
2386 * There are two new variables in the status table:
2387 status.callbacks and status.indirect_callbacks (execution counts).
2389 ==============================================================
2390 Luatex beta-0.30.1 was released 20081009
2391 ==============================================================
2393 * Invalid return values from the linebreak_filter callback
2394 are now handled gracefully (was crashing)
2395 * a preinstalled ctangle is no longer needed except when
2397 * In 0.30.0, the .notdef fix was incorrectly applied to
2398 truetype / opentype fonts.
2399 * A bunch of all memory leaks is fixed
2400 * In lua, f:read('*a') now uses signicantly less memory
2401 * The number of \catcodetables is now limited to 64KB
2403 * Luatex could crash if there were PDF images with and
2404 without page /Group included on the same page
2405 * Lua coco now always uses setjmp (for OpenBSD compatibility)
2406 * The embedded mplib is updated to the latest svn version
2407 * # marks (characters with catcode 6) are no longer doubled
2409 * Handling the nul character (U+0000) with catcode 13
2411 * Luatex could crash on win32 with an access violation
2412 because there was one predefined language too few
2413 (the one matching \language=-1)
2415 ==============================================================
2416 Luatex beta-0.30.0 was released 20080930
2417 ==============================================================
2421 * Readable \tex internal params that are counts, attrs, or dimens are
2422 now returned as numbers instead of strings, and skips as node objects.
2423 Read-write access to tex's skip registers added: tex.skip[0] etc.
2424 * new callback: 'linebreak_callback' to replace the internal paragraph
2426 * the tex table now supports more readable 'convert' values:
2427 tex.fontname, tex.pdffontname, tex.pdffontobjnum, tex.pdffontsize,
2428 tex.uniformdeviate, tex.number, tex.romannumeral, tex.pdfpageref,
2429 tex.pdfxformname (each takes a number as argument)
2430 * new readable parameter: tex.fontidentifier(number) returns the
2431 \csname associated with that font id
2432 * luatex now outputs \FONT<nr> instead of \^^@ in Overfull/Underfull
2433 messages if the font's id text is zero (like for expanded fonts) (#77)
2434 * luatex --version is split into --version and --credits
2435 * There is now (again) an svn revision number in luatex --version (#91)
2436 * Add support for more read-only internal access from lua:
2437 tex.lastpenalty, tex.lastkern, tex.lastskip, tex.lastnodetype,
2438 tex.inputlineno, tex.badness, tex.pdftexversion, tex.pdflastobj,
2439 tex.pdflastxform, tex.pdflastximage, tex.pdflastximagepages,
2440 tex.pdflastannot, tex.pdflastxpos, tex.pdflastypos, tex.pdfrandomseed,
2441 tex.pdflastlink, tex.luatexversion, tex.Alephversion,
2442 tex.Omegaversion, tex.Alephminorversion, tex.Omegaminorversion,
2443 tex.eTeXminorversion, tex.eTeXversion, tex.currentgrouplevel,
2444 tex.currentgrouptype, tex.currentiflevel, tex.currentiftype,
2445 tex.currentifbranch, tex.pdflastximagecolordepth (#81)
2446 * the old --src-specials are replaced by --synctex (#63)
2447 * the \expanded primitive is backported from pdftex 1.50 (#43)
2448 * luatex now comes with libpng 1.2.32
2449 * experimental: tex.definefont(string, number) associates a
2450 csname string with a font id number
2452 Bugs fixed compared to 0.29.0:
2454 * dashes were exported wrongly by MPlib
2455 * multi-item \discretionaries were broken in various ways (#78, mailinglist)
2456 * read_font_info was sometimes called recursively from lua-loaded
2458 * do_vf was sometimes called on lua-loaded fonts that where
2459 already known to be virtual
2460 * trailing junk in tfm files is now ignored (needed for ecrm fonts)
2461 * pdf_ignored_dimen was initialized too late, breaking \prevdepth
2462 handling and causing output lines to overlap eachother (#72)
2463 * pdf.immediateobj() had a printf-related bug
2464 * the fontname terminal logging is fixed for strange font file names
2465 * lua tex array assignments now listen to the globaldefs setting
2466 (tex.count[0] etc) (#92,partial)
2467 * \parshape was broken (#70)
2468 * there is no longer a ".tex" extension forced on very input file (#74)
2469 * eof() for mapfiles was true one byte too soon (#76)
2470 * out of range \lefthyphenmin and \righthyphenmin settings now actually
2471 disable hyphenation (#90)
2472 * tex.unset_attribute() looked too far ahead when a to-be-unset
2473 attribute id not only did not exist in the node, but was also
2474 higher than the highest set attribute on the node. (#65)
2475 * the parameters attr and page_name of read_image() were swapped
2476 (this broke \pdfimage with attributes)
2477 * tex filenames with spaces in them on the command line are now
2479 * sometimes pfb fonts were included multiple times without valid
2481 * some parts of the pdftex 1.40.9 PNG transparancy hack were still
2482 present and caused transparant png handling to fail
2483 * \localinterlinepenalty and \localbrokenpenalty were broken
2484 * special case catcode tables are now handled better (#23)
2485 * the handling of missing .notdef charstrings in old pfb fonts
2488 ==============================================================
2489 Luatex beta-0.29.0 was released 20080718
2490 ==============================================================
2495 * The embedded pdftex is now 1.40.9 (forthcoming) except for the
2497 - the png transparancy fix is skipped because it is in conflict
2498 with a macro-based solution offered by context mkiv.
2499 - LFS (PDF files > 2GiB) is not working yet.
2500 - Synctex is still missing
2502 * libpng, xpdf, and zlib are updated to their pdftex 1.0.9 levels
2504 * MPlib is updated to 1.090
2506 * The syntax of buildpage_filter is changed to avoid confusion
2507 (and crashes). See the manual for the new calling convention.
2509 Bugs fixed compared to 0.28.0:
2511 * The previous bugfix for \languages skipping numbers was wrong.
2513 * Various compile-time warnings are suppressed
2515 * \pdfsetmatrix was broken
2517 * \pdfsave and \pdfrestore were broken
2519 * Valid user_defined whatsits nevertheless were generating errors.
2522 ==============================================================
2523 Luatex beta-0.28.0 was released 20080630
2524 ==============================================================
2526 There is one new feature:
2528 There is now experimental support for non-trivial discretionaries
2529 following explicit hyphens. In analogy to \prehyphenchar and
2530 \posthyphenchar, there are two new parameters \preexhyphenchar en
2531 \postexhyphenchar. Both new parameters default to zero (nothing).
2532 When set to a nonzero value, the parameter is added to either the
2533 pre- or post- break text. Note that this is *in addition to* the
2534 hyphen already in the input. Testing and comments are very welcome.
2536 Here is a short example (no idea what is says):
2540 \postexhyphenchar=`-
2542 pudesse t\^e-lo mantido como amigo, mas por
2543 mais bem-intencionado que eu fosse, n\~ao
2549 Bugs fixed compared to 0.27.0:
2551 * Words that started off with a character with a zero \lccode
2552 were never hyphenated at all.
2554 * There was a bug in the new active characters code that prevented
2555 the latex format from being built (with Invalid character error).
2557 * There is a temporary fix for the sometimes appearing "Font has a
2558 bad FontBB" message from Acrobat.
2560 * \leaders did not actually stretch enough (the last bit of glue
2561 that has to line up the line endings was never output to the PDF).
2563 * Bad paragraph-related callbacks could result in luatex crashing.
2565 * The pre_linebreak and post_linebreak filters were never called
2566 when \output was active (this was a leftover of a superceded
2569 * 'skipping' language codes when setting up \patterns c.s. did not
2570 work (it used the next empty slot instead of the actual value of
2573 * Using multiple 'attr' keywords on box items could cause random
2576 * Calling lang.hyphenate() with one argument (without specifying a
2577 tail node) could crash.
2579 * The luatex pdf banner and version reporting is cleaned up a bit.
2581 * Conflicting patterns inside \patterns now give an error:
2582 ! Conflicting pattern ignored.
2583 (duplicate identical patterns are ignored without error).
2585 ==============================================================
2586 Luatex beta-0.27.0 was released 20080624
2587 ==============================================================
2589 Bugs fixed compared to 0.25.3:
2591 * Unicode reencoding support for non-standard (i.e. older)
2592 Type1 fonts is now somewhat less broken than it was (#25)
2594 * .vf fonts using specials crashed luatex
2596 * luatex would crash on --\par (#33)
2598 * An attempt is made to get a sane default value for StemV in
2599 the created pdf (#32)
2601 * We can now guarantee that %PDF-1.* header is printed before
2602 the first pdf.print() output
2604 * lang.hyphenate() was broken
2606 * insert_before(a,a,b) was broken (#37)
2608 * argv[0] is now cleaned up before being used as a default for
2609 mem_name and prog_name (#28).
2611 * luatex would crash on loading extended fonts (fonts loaded
2612 via lua callbacks) from a format file.
2614 * The fix for pdftex bug #799 is backported from pdftex 1.40.4.
2616 * slnunicode had a bug in the unicode.utf8.gmatch iterator.
2618 * Queries of nonexisting fontdimens could cause a crash.
2620 * luatex would crash on {\textdir TLT\pardir TLT x\break\par }
2622 * Fixed wrong placement of lines in mixed-direction paragraphs
2623 that could happen in some situations.
2626 * Luatex now includes luasocket (#35)
2627 See http://www.tecgraf.puc-rio.br/~diego/professional/luasocket/
2629 There is a new commandline option: --nosocket to disable this,
2630 and that is also implied by --safer.
2632 NOTE to the binary builders: there are some unfixed configure
2633 problems when you need to add a specific library to get socket
2634 support on your platform. You probably will have to edit the
2635 generated Makefile by hand (search for 'socketlib').
2637 * There is ongoing development to the 'img' and 'mplib' libraries.
2638 See the reference manual for details.
2640 * The 'character commands' in virtual fonts now support image
2641 inclusion. See the reference manual for details.
2643 * Lua error messages now include the call stack.
2645 * \directlua and \latelua have been extended to accept a 'name'
2646 keyword. The argument is a token list that is used as the lua
2647 name of this chunk in lua error messages and call stack prints.
2650 * The lua chunk names can be interfaced via a new virtual
2651 table called lua.instancename, the values in that function as
2652 defaults in the absence of 'name' keywords.
2654 * The 2-plane limit on active character range is removed (#12).
2656 * Subsetted TTF fonts in the PDF now retain the cmap table.
2658 * There is a new Lua variable os.selfdir. This contains the
2659 full absolute pathname of the directory that the executable
2660 resides in (with symlinks resolved)
2662 * There is a new function os.uname() this returns a lua
2663 table containing various platform information items.
2665 * The node library now uses text strings for direction specifiers
2666 instead of numbers. See the reference manual for details.
2668 * The 'E' (edit) as error response functionality is now a noop.
2670 * Adding luatex 0.25.3 to texlive resulted in a few minor backports,
2671 in particular: Support for mktexfmt is added, and luatangle now
2672 identifies itself as such (instead of calling itself otangle).
2674 * We fixed a whole series of portability problems (but
2675 we probably introduced new problems as well).
2677 * Most (all?) files now have a corrected Copyright header,
2678 and link in $Id$ and $URL$ into the object file.
2680 * Some unnecessary files were removed from the distribution.
2682 ==============================================================
2683 Luatex beta-0.25.3 was released 20080418
2684 ==============================================================
2687 * Pdftex bug no. 936 (sarovar) regarding vertical
2688 positioning of embedded PDF files if depth parameter is given.
2689 * Luatex gave bogus lua return values for the tex.wd/hd/dp
2690 values of void boxes
2691 * A few bugfixes in mplib (square pens caused hangs, elliptical
2692 pens caused confused output)
2693 * Hyphenation of uppercase words (\uchyph) was broken
2694 * Output image placements corrected for all 8 transform cases
2695 also when artbox etc. is used
2696 * There were missing maketexstring() calls in error messages
2697 * Math display contents were sometimes prematurely freed during
2698 the placement of the equation number
2699 * Setting \language=-1 could cause crashes due to an array
2700 index going out-of-bounds
2703 * build.sh.ppc is added to the source distribution. This is a
2704 script that crosscompiles osx ppc binaries from osx intel
2705 * tex.box[<chardef name>] is now supported (but still experimental)
2706 * a bunch of compiler warnings are removed
2707 * The fontforge library now dump AAT feature tags as and
2709 * The new function font.nextid() predicts the next assigned font id
2710 * Some source code changes are backported from texlive
2712 ==============================================================
2713 Luatex beta-0.25.2 was released 20080410
2714 ==============================================================
2716 * Updated to MPlib 0.40
2717 * Bugfixes and cleanup in the lua img table code
2718 * Fix \pdflastximagepages bug from pdftex
2719 * Fix for very large tex.print strings
2720 * Update to Lpeg 0.8.1
2721 * &D Bugfix for Type1 fonts when out-of-range characters
2722 are marked as 'used'
2724 ==============================================================
2725 Luatex beta-0.25.1 was released 20080321
2726 ==============================================================
2728 * Updated to MPlib 0.30 (that is now becoming usable)
2729 * The build requirement for a pre-installed ctangle is gone
2732 ==============================================================
2733 Luatex beta-0.25.0 was released 20080311
2734 ==============================================================
2739 This version features an embedded MP interpreter whose output
2740 can be directly accessed from lua code (mplib), without calls
2741 to an external "mpost" command. Of course it has bugs and
2742 limitations (makempx does not work, for example) but keep in
2743 mind that it is only an initial attempt.
2744 See the manual for more details.
2746 ** img.immediatewrite() is added
2747 ** images now accept a 'transform' key
2748 ** widths etc. can now be given as width="100mm"
2752 * \parshape handling was completely broken since 0.20.0+
2753 * when \pdfprotrudechars was in effect, an assertion failure
2754 could happen when embedded \hboxes in the paragraph appeared
2755 at the end of a line.
2756 * import of otf fonts with contextual lookups has been debugged,
2757 thanks to a patch by GW himself.
2758 * compiling with gcc 4.2.3 is now supported
2759 * if you want to build from source, you need a pre-installed ctangle.
2762 ==============================================================
2763 Luatex beta-0.22.1 was released 20080227
2764 ==============================================================
2766 * The macnames.c source file for building ttf2afm is restored.
2767 * "make depend" in luatexdir now works again
2768 * luatex sometimes crashed because it attempted to expand an
2769 already expanded font
2770 * luatex aborted when --progname was given but no format name.
2771 It now sets the format name to the given progname in that case
2772 * sometimes paragraphs with near-empty lines could cause a crash
2773 * img.supportedtypes() had a bug causing it to crash
2774 * img.supportedtypes() has been renamed to img.types for consistency
2775 * img.boxes() added, returns strings representing bounding boxes
2776 * img.node() added, returns a whatsit node cf. \pdfrefximage
2777 * node.write() now accepts multiple arguments
2778 * the program_name_set switch was not set automatically from C,
2779 causing errors unless lua code called kpse.set_program_name()
2781 * kpse.set_program_name() can now be called more than once
2783 * os.spawn{...} and os.exec{...} could cause crashes because of
2784 a memory allocation error
2786 ==============================================================
2787 Luatex beta-0.22.0 was released 20080215
2788 ==============================================================
2790 * We now have an official bug tracker: http://tracker.luatex.org
2791 * A new lua library (img) is added that allows a direct
2792 interface to the image handling of luatex. You can use this
2793 to include images from lua code instead of via the more
2794 traditional \pdfximage cs. See the manual.
2795 * An optional equal sign after \{pre,post}hyphenchar is now
2797 * os.exec() has been extended, and os.spawn() added. These
2798 functions have support for quoted strings, and they
2799 also accept a table with preseparated command arguments.
2800 * New string constants os.type and os.name are provided.
2801 * node.last_node() is added. This pops and returns the last
2802 node from luatex's 'current list'
2803 * node.write() is added. This appends a node to the end of
2804 luatex's 'current list' (experimental).
2805 * The strict check on unicode compliance in pattern files
2806 is dropped. Patterns files still have to be in proper UTF-8
2807 encoding, but the error for non-Unicode character values
2808 (like 0 - 31 and 127 - 159) is dropped.
2809 * \pdfadjustinterwordglue, \prependkern, \appendkern
2810 and associated \XXXXcode arrays are gone.
2811 * The rest of the pdftex font arrays are now merged into
2812 the new luatex font data structure. This means that you
2813 can now set up font expansion from lua code, and that a few
2814 font-related limits are gone.
2815 * The 'top_skip' field in 'insert' nodes is renamed to 'spec',
2816 for improved consistency.
2817 * kpse.show_path() added. This behaves just like
2818 $ kpsewhich --show-path
2819 * The unicode.utf8 functions now also accept values in the range
2820 1.114.112 - 1.114.367 that is used by LUATEX for raw byte output.
2824 * Better node memory (de)allocation error tracking and messages
2825 * Compilation on MacOSX 10.5 was broken
2826 * There was a bug in node.insert_after
2827 * Use of \{pre,post}hyphenchar was broken
2828 * lfs.permissions was leaking memory
2829 * Some warning and error messages are improved a bit
2830 * A set of bugs in character protrusion, this seems to be working
2832 * Also, a set of bugs in font expansion. This now works in most
2833 cases but is not quite bugfree yet (problematic files for testing
2835 * The functions in the kpse library would crash luatex if
2836 kpse.set_program_name() was not yet called. gives an error now.
2837 * Alignments with spanned columns could cause crashes
2838 * A patch is added for problems with filename parsing on the
2839 "first input line" (by Jonathan Kew)
2840 * The hpack_filter and vpack_filter were only called for lists longer
2842 * Luatex is now more forgiving about font subsets being smaller
2843 than their expected size (issues a warning instead of aborts now)
2844 * A "double-free ignored" error for paragraphs with lines starting
2845 with discarded items was fixed.
2847 ==============================================================
2848 Luatex beta-0.20.2 was released 20071217
2849 ==============================================================
2851 * some portability fixes to the build scripts
2852 * a fix for multi-\span in alignments causing unbreakable
2854 * manual improvements from Jonathan Sauer
2855 * fix for undefined csnames in \directlua if
2856 web2c's hash_extra is nonzero
2857 * fix for LR text inside of a RL document
2858 * fix for open_read_file callback not being called
2859 unless find_read_file was also registered
2860 * removed the ocp status message when \ocps are not
2862 * "unicodeenc" in the fontforge to_table renamed to
2863 "unicode" for improved consistency
2865 ==============================================================
2866 Luatex beta-0.20.1 was released 20071207
2867 ==============================================================
2869 * texlua was broken on Solaris because the some C header
2870 files were loaded in the wrong order.
2871 * os.tmpdir() now accepts an argument, making it easier
2872 to use. It now generates more unique filenames when
2873 it is called repeatedly in one run.
2874 * The --luaconly commandline switch is now documented
2876 * The new extended hyphenation exceptions were severely
2878 * \pdfprotrudechars could cause luatex to abort with an
2880 * There was a bug in the \span code that could cause endless
2882 * The simple forms of \leaders were messed up on windows
2883 because a variable was not properly initialized.
2884 * Non-grouped \textdir commands created invalid output.
2885 * e-TeX's pseudo files were not closed properly in ini mode.
2886 * The luatex.web now weaves properly again.
2887 * I made some small improvements to the manual.
2889 ==============================================================
2890 Luatex beta-0.20.0 was released 20071205
2891 ==============================================================
2893 News compared to the last beta (0.11.2) is as follows:
2895 * Completely overhauled hyphenation and ligkern application,
2896 including the addition of a new "lang" table in lua to
2897 interface to the language parameters, some extra functions
2898 in the "node" table, and a few extra callbacks ("hyphenate",
2899 "ligaturing", "kerning", "post_linebreak_filter").
2901 There is a new chapter in the manual to document all the
2902 changes to the hyphenation and line breaking algorithms,
2903 it is simply too much to list here.
2905 * the interface of the pre_linebreak_filter,hpack_filter,
2906 vpack_filter, and pre_output_filter has changed slightly.
2908 * boxes can now get explicit attributes different from the
2909 currently active set, using a syntax like
2911 \hbox attr2=12 attr3=-1 to 12pt {Hi!}
2913 * lpeg is now at version 0.7
2915 * a whole series of exotic bugs and compiler warnings are
2916 fixed, mostly thanks to the watchful eye of Fabrice.
2918 * texio.print now accepts multiple strings as arguments.
2920 * the lua functions os.sleep(), os.times(), os.gettimeofday()
2921 and os.tmpdir() have been added.
2923 * lua now comes with the coroutine (coco) patches from the
2924 luajit project applied.
2926 * the banner line no longer claims to be TeX.
2928 * a bunch of bugs reported on the mailing list have been
2929 fixed (I hope all of them).
2931 * (internal) we found lots of small ways to speed up lua
2934 * (internal) the node (de)allocation functions have been
2935 rewritten, so that absolutely all nodes now have a type,
2936 even the ones with variable sizes.
2939 ==============================================================
2940 Luatex snapshot-20071029 was released 20071029
2941 ==============================================================
2943 * Completely overhauled hyphenation and ligkern application.
2945 There is a new chapter in the manual to document all the
2946 changes to the hyphenation and line breaking algorithms,
2947 it is simply too much to list here.
2949 * the interface of the pre_linebreak_filter,hpack_filter,
2950 vpack_filter, and pre_output_filter has changed slightly.
2952 * lpeg is now at version 0.7
2954 * a whole series of exotic bugs and compiler warnings are
2955 fixed thanks to the watchful eye of Fabrice.
2957 * texio.print now accepts multiple strings as arguments.
2959 * The lua function os.sleep() is added
2961 ==============================================================
2962 Luatex beta-0.11.2 was released 20070918
2963 ==============================================================
2965 * Pdf inclusion and subsetting of CID-based opentype fonts
2966 now works as it should.
2968 ==============================================================
2969 Luatex beta-0.11.1 was released 20070918
2970 ==============================================================
2972 A quick list of what is new and fixed since beta 0.10.2:
2975 * pfb+afm fonts can now be used in 'wide' (encodingbytes=2) mode
2976 * searching in PDFS using 'wide' fonts now works reasonably well
2977 (based on the tounicode feature)
2978 * related to that, tounicode information can now be passed
2979 on inside the font metrics table
2980 * font subsetting is now supported for CID-based OpenType fonts
2981 (however, there is a known bug with KpozMinProVI-Regular.otf)
2982 * fontforge's warning and error messages are now intercepted
2983 and passed on to the lua code as a second return value of
2984 the fontforge.open() function
2985 * the new primitive \suppressfontnotfounderror can suppress
2986 the TeX error for "Font not found"
2987 * The lua function font.current can now be used to set TeX's
2991 * set_attribute(-1) is now the same as unset_attribute()
2992 * OpenType lookups with glyph classes would crash luatex
2993 * luazlib would not compile on debian (fix from Norbert)
2994 * CID-based fonts would crash luatex
2995 * Bare CFF should be read in binary mode (fix from Akira)
2996 * VF processing did not process packets containing zero bytes properly
2997 * the truetype collection (.ttc) handling is fixed, so that all
2998 of the fonts inside a collection can now be used reliably
2999 * application segfaults and stack overflows are intercepted
3000 so that luatex can quit a bit more gracefully
3001 * an assertion failuer on systems with signed chars (linux-powerpc)
3003 * a crash on AMD64 linux was fixed
3004 * the lua "pdf" table code was wrong
3005 * \ifcsname did not work properly for UTF-8 characters
3006 * Use of the math-related functions using make_fraction (like \atop)
3008 * \handling of \if\noexpand was wrong
3009 * applied a patch that cleans up XForm and page calculations
3010 * "autoconf" support from zziplib is stripped
3012 ==============================================================
3013 Luatex beta-0.10.2 was released 20070814
3014 ==============================================================
3018 * the primitive \span was completely broken
3019 * \pdfexpandfont (font expansion) misbehaved if it was used more
3021 * virtual fonts: sometimes they used the wrong internal font id,
3022 loading vf fonts via fonts.read_vf() was impossible, and sometimes
3023 virtual fonts created segfaults
3024 * while dumping formats, the last font parameter for each font was not
3026 * zziplib was always compiled with pre-installed zlib headers, instead
3027 of the ones in the build tree
3028 * lua 5.1.2 has trouble quoting ^Z characters etc, the tentative patch
3029 for lua 5.2 from Luiz fixes that, hopefully
3030 * fontforge.font('font.pfb') now properly parses AFM boundingboxes
3031 * non-existing files in the argument for fontforge.open() or
3032 fontforge.info() could cause segfaults, now it generates an error
3034 * fontforge.open() did not return character widths for vertical fonts
3036 * on Windows, fontforge believed that ttc files (TrueType Collections)
3037 were actually directories. ttc processing is still not 100% correct,
3038 but it is getting better
3039 * the build system used explicit 'make' sometimes
3040 * the auto-growing string pool was not used everywhere
3041 * there were some typos in the documentation parts of the pascal web
3042 * use of \parshape could easily exhaust all available memory
3047 * support for applying Adobe Feature files (.fea) and Adobe Font
3048 Metrics (.afm) is added to the fontforge library
3049 * fontforge.info() will now return an array of tables for the contents
3051 * support for a 'texluac' personality was added, to replace the 'luac'
3052 command from the official Lua distribution
3054 ==============================================================
3055 Luatex beta-0.10.1 was released 20070719
3056 ==============================================================
3058 This was a hotfix because beta-0.10.0 was completely broken.
3060 ==============================================================
3061 Luatex beta-0.10.0 was released 20070718
3062 ==============================================================
3064 The latest version of the manual is included in the package, and I
3065 am not going to repeat all of that. There were some minor changes
3066 compared to the previous snapshot, but mostly just bugfixes and
3067 documentation improvements.
3069 ==============================================================
3070 Luatex snapshot-20070626 was released 20070626
3071 ==============================================================
3073 * Integrated the lua library lzlib, this defines tables with
3074 bindings for zlib (including eazy-to-use gzip support)
3075 * Updated to slnunicode version 1.1
3076 * Some small cleanups in the sparse array handling
3077 * Moved the raw byte support out of the valid unicode range
3078 * Fixed a bug in the OFM font reader
3079 * Removed the pdftex snap nodes (and associated primitives)
3082 ==============================================================
3083 Luatex snapshot-20070622 was released 20070622
3084 ==============================================================
3086 Not a lot of news, but it fixes a few important bugs in the lua
3087 node processing. Also a few utility functions are added:
3090 rounds and bounds checks a lua number to make sure it is
3091 a valid tex integer.
3093 multiplies a number (or the numeric values in a table)
3094 with a fixed quantity, and calls tex.round() on the result.
3096 Test if a node has a specified field name
3098 removes a node from a nodelist, while keeping the list intact
3099 * node.insert_before()
3100 inserts a new node into a nodelist, just before a specified
3102 * node.insert_before()
3103 inserts a new node into a nodelist, just after a specified
3106 packages a nodelist into a hlist node
3109 ==============================================================
3110 Luatex snapshot-20070619 was released 20070619
3111 ==============================================================
3113 * The lua node processing interface is completely reworked.
3114 It is now completely based on userdata, and uses a new lua table
3115 called 'node' to hold the methods. More detailed information
3116 is in the manual (of course).
3118 * There is a fifth node processing callback:
3120 this is executed just before the packaging of \box 255.
3122 * The hpack_filter and pre_linebreak_filter callbacks now
3123 receive an extra argument indicating the number of top-level
3124 glyphs in the node list.
3126 * Virtual fonts can now contain a 'node' key in the glyph
3127 commands: the value should be a hlist node (i.e.: a horizontal
3128 box), and that will then be output for each character access
3131 * A new set of registers is added, called \attribute. These are
3132 values that will be automatically attached to nodes created in
3133 their scope. More information in the manual.
3135 * Direct read/write access to TeX's box registers is addded to
3136 the lua 'tex' table.
3138 * TeX's main memory now grows dynamically, and the (de)allocation
3139 routines have been rewritten completely.
3141 * The 'kpse' table is extended with extra interface functions, to
3142 allow texlua to be used as a scripting engine.
3144 * The \pdftexversion command now returns 200, not 140.
3146 * The displayed banner and --version screens are cleaned up.
3148 * The format file is now RLE compressed. Not as small as before,
3149 but unpacking is much faster.
3152 ==============================================================
3153 Luatex snapshot-20070426 was released 20070426
3154 ==============================================================
3156 This past month I have been busy with nodes and lists of nodes,
3157 so the big new feature in this release is that there are four
3158 callbacks that operate on node lists:
3161 pre_linebreak_filter
3165 The preliminary documentation for these is in the manual, but the basic
3166 idea is that you can filter a node list just before LuaTeX starts doing
3167 something with it (like line breaking). This functionality is not stable
3168 yet: the node presentation of the various node types is pretty much OK
3169 now, but keep in mind the following:
3171 * math noads and math typesetting are not handled at all (yet)
3172 * not all hpacks and vpacks are intercepted (yet)
3173 * the nested node list handling will probably change
3174 * A conversion tool for nodes to/from dictionaries is planned,
3177 The other changes in this snapshot are various bugfixes (for builds
3178 on various platforms as well as font issues) and speedups (in the
3179 execution of callbacks and the creation of lua font representations).
3182 ==============================================================
3183 Luatex snapshot-20070322 was released 20070322
3184 ==============================================================
3186 * I have changed the token_filter callback quite rigorously,
3187 mostly because of speed issues. The raw speed of trivial
3188 lua token handling is now only about 20 times slower than
3189 the native handling. Not bad at all, considering it has to move
3190 between interpreted and compiled code for each and every
3191 token. If you do not run the token filter inside \output,
3192 the effective run speed difference should not be much more
3195 Two big differences: you have to call token.get_next()
3196 yourself, and the token table is now a three-item array
3197 instead of a five-key hash. The minimal example changes to
3200 callback.register('token_filter', function ()
3201 return token.get_next()
3205 more details are in the manual.
3207 * I've fixed a few bugs in the handling of Opentype TTF, and added
3208 a new key in the font definition table:
3210 f.encodingbytes = (1|2)
3212 The default is 2 for opentype and truetype format, 1 otherwise.
3213 Later on, it will become possible to have a type1 font in 2-byte
3214 (CID) encoding or a truetype font in traditional encoding (1-byte),
3215 but I have not covered all cases yet.
3219 ==============================================================
3220 Luatex snapshot-20070309 was released 20070309
3221 ==============================================================
3223 * The OCP debug information is removed again.
3225 * There is a new callback that I am quite excited about myself:
3229 A bit of text from the reference manual:
3230 --------------------
3231 This callback allows you to change the modify any lexical token that
3232 enters the \type{main_control} function before \LUATEX\ executes the
3235 Note: not all tokens can be intercepted yet, only those that are `seen'
3236 by \LUATEX's main control function. Supplemental tokens like the bodies
3237 of macro definitions and the right-hand side of register assignments
3238 are not seen. For now, this is intentional.
3241 function (table <token>)
3242 return table <token>
3246 Calling convention for this callback is bit more complicated then for
3247 most other callbacks. Initially, lua function will be called with the
3248 next token from \type{get_next()} as argument, represented as a small
3249 lua table. The function should either return a lua table representing
3250 a valid to-be-processed token, or something else like nil or an empty
3253 If your lua function does not return a table representing a valid
3254 token, it will be immediately called again with yet another token
3255 from \type{get_next()} as argument, until it eventually does return
3258 But if the function does return a usable token, then that token will
3259 be processed by \LUATEX. Afterwards, the function will be called
3260 again, but now without an argument. This is repeated until it stops
3261 returning tokens. Then processing reverts back to the other branch.
3263 The point behind that roundabout calling convention is that it
3264 allows the lua function to buffer tokens for various uses. That in
3265 turn makes it possible to do some really advanced things like
3268 Now about that table. The table that the function will receive
3269 contains four fields:
3271 \starttabulate[|l|i|p|]
3272 \NC Key \NC type \NC Explanation \NC\FR
3273 \NC cmd \NC string \NC A representation of \LUATEX's internal
3275 \NC chr \NC number \NC The command code modifier\NC\NR
3276 \NC cs \NC string \NC If the token came from a csname, this
3277 is that csname\NC\NR
3278 \NC mod \NC character \NC A single character string representing
3279 the current processing mode. One of {\bf v}ertical, {\bf h}orizontal,
3280 display {\bf m}ath, {\bf n}o, internal {\bf V}ertical,
3281 restricted {\bf H}orizontal, or inline {\bf M}ath mode.\NC\LR
3284 If you modify the table before returning it, then it is wise to return
3285 either a (\type{cmd}, \type{chr}) pair, or a \type{cs} string. That is
3286 because if both options are present, the pair has precedence and the
3287 string is ignored. On the return table, {\bf mod} is ignored always.
3290 I have no long example code yet and it is not as complete as one
3291 would want it to be because it is not intercepting everything that
3292 comes in, only the bits that are triggered by the main control
3295 I decided to do a fast snapshot release for two reasons:
3297 * It is one of the easier extensions to get started with if you want
3298 to learn a bit about lua programming
3300 * I would welcome feedback on the token interface, because it will
3301 be needed in other places as well, soon. I am still not sure
3302 whether converting the command to/from strings is worth it, for
3303 example. And maybe it would be less confusing if you could return
3304 a list of tokens instead of being called repeatedly?
3306 Here is the trivial example to get you started:
3309 callback.register('token_filter', function (t) return t end)
3313 ==============================================================
3314 Luatex snapshot-20070307 was released 20070307
3315 ==============================================================
3318 * Non-CID PostScript-based Opentype fonts are now combined over
3319 the entire document, and properly subsetted. The code is
3320 borrowed from xdvipdfmx with some minor adjustments
3322 Adding support for CID-keyed OpenType fonts would not be hard
3323 but at the moment I lack example input (and incentive).
3325 * A small extension to the virtual fonts structure: you can use
3327 f.fonts[1] = { 'id' = 38}
3329 to do a backreference to a previously defined font. This saves quite
3332 * There was a bug in the handling of \leaders in the output whereby
3333 it's width was taken to be twice what it should be while writing
3334 to the PDF, fixed now.
3336 * The font inclusion code is cleaned up a bit by Hartmut.
3338 * Some compilation problems were fixed.
3340 * There is (quite a bit of) debugging information printed out when
3341 OTPs are in use, because I am tracking down a bug reported by Idris.
3343 The input of each and every OTP step is shown on the terminal in
3346 [57902][1568][58423][1568][58408][1568][58921]
3348 those are the decimal values of ocp i/o characters. If you don't
3349 need them, don't worry about it.
3351 ==============================================================
3352 Luatex snapshot-20070302 was released 20070302
3353 ==============================================================
3355 * The 'snapshot version' banner is now calculated dynamically
3356 at build time. This aids in figuring out what binary people
3357 are actually running, but it can possibly break the build on
3358 systems that do not have a `date` command.
3360 * The do_vf() function that checks for virtual font existance
3361 is now run immediately after the font definition instead of
3362 being postponed until characters are output.
3364 * The 'define_font' callback interface has changed a little.
3366 retval = function (name,size,fontid)
3368 where fontid is the internal font number of the font that
3369 is currently being defined, and retval can be either a table
3370 (as before) or a different, previously defined fontid. This is
3371 useful if a previous definition can be reused instead of
3372 creating a whole new font structure.
3374 * The internal font data structure has been redone. Glyph index
3375 inside a font is now handled by a sparse array, so that use
3376 of e.g. 0xFB01 (fi-ligature) no longer creates a 64000+ entries
3379 * The internal cache-ing of font metric information is turned
3380 off completely, because it was based on the assumption that
3381 name + size were a unique identifier for a font. This can no
3382 longer be guaranteed.
3384 * word boundary processing now works OK again, thanks to the
3385 introduction of two virtual characters in the font table
3386 definition. Besides the normal numeric entries in the
3387 f.characters table, there can now also be two string keys:
3388 "left_boundary" and "right_boundary". The ligatures and kerns
3389 of the 'left_boundary' character are used for the pre-word
3390 boundary processing, ligatures and kerns between characters
3391 and 'right_boundary' are used for the post-word processing.
3393 * Lua font table references are no longer cached by the
3394 executable ,in order to preserve memory. (the only downside
3395 is that font.fonts[] access is now slower because of the need
3396 to recreate the lua table).
3398 * There are other some small changes to the font table formats.
3399 Please see the manual for details.
3401 * A 'real' font can now still have virtual characters if they
3402 are loaded via lua. Just set the 'commands' section and/or
3403 the 'fonts' array to your liking, and it should work out.
3405 If you have created no 'fonts' array at all, then the default
3406 font (indentifier '1') is the current font, so that you
3407 can create virtual duplicates of already existing characters.
3409 Note: this does not work the other way. There can not be
3410 'real' characters in a virtual font!
3412 * Truetype-based opentype fonts no longer require Acrobat 7
3413 t(hey are now written out as if they are normal truetype).
3415 * A lua init script can now set 'texconfig.formatname' and/or
3416 'texconfig.jobname'. If ther is no file or format specified
3417 on the commandline, then, if, one of those keys is present,
3418 that key will be used instead of simply quitting with an
3421 * Placement of boxes and rules in right-to-left mode is debugged,
3422 and now seems to work ok.
3424 * Virtual font loading is debugged.
3426 * Some memory leaks are resolved
3428 * HZ font expansion should work ok again, but is not tested.
3430 * a few of the warning during opentype loading have been removed
3431 because the problems are rather harmless and turned out to be
3432 triggered by almost every font.
3435 ==============================================================
3436 Luatex snapshot-20070218 was released 20070218
3437 ==============================================================
3439 * The pdftex stuff is now updated to 1.40.3
3440 (and on top of that, it still has those extra patches announced in
3443 * The virtual font parser is debugged and now appears rather stable.
3445 * There is one extra virtual command:
3448 {"slot", 1, 97}, -- place character 97 'a' in local font 1.
3451 This is just a shortcut for {"font",1}, {"char", 97}
3453 * Some small memory leaks have been fixed. Luatex does not leak big
3454 time, but I'd like to get back to valgrind reporting '0 out of 0',
3455 instead of the current 800 bytes or so (that is a slow process).
3457 * You can read a truetype or opentype font from within lua code
3458 using font.read_ttf() or font.read_otf(), respectively.
3460 This feature uses a fair bit of the fontforge code, making the
3461 binary rather a bit larger than before. Just so you know.
3463 Apple (AAT, as well as encoding) support is still largely missing,
3464 and bitmap-only and old Multiple-Master truetype fonts are not
3465 supported at all (and never will be).
3467 The output format is (shadily) documented in the reference manual.
3468 At the moment, it very closely resembles the internal font stucture
3469 that is used by fontforge.
3471 * LuaTeX can now write wide OpenType fonts to the PDF file.
3473 There is no subsetting support yet, and a ToUnicode CMap is also
3474 still missing, but nevertheless it is already somewhat useful. The
3475 rule is very simple: if a font uses code points above 255, then it
3476 is considered to be a `wide' font, and it will be written out as
3477 a Type0 CID-keyed font to the PDF.
3479 Caveat: Getting suitable metrics into LuaTeX can be a bit of problem
3480 right now, because font.read_otf() does not produce anything that
3481 can be fed back into define_font without extra processing. Hans has
3482 some experimental Lua code for ConTeXt (of course :-)) and that is
3483 how I know it works. You can expect a nicer interface soon,
3484 hopefully next week, in the form of a simplistic table conversion
3487 * I have started work on supporting Aleph's bidi typesetting in PDF
3488 mode as well, simple text seems to be largely ok. More complicated
3489 documents will no doubt still show some bugs, but fixing those will
3490 be easy (once they are discovered). Exactly what happens with specials
3491 is not yet investigated.
3493 * Omega's (16-bit) wide virtual fonts now work OK in PDF mode. This
3494 means that many Aleph files can now be run in PDF mode directly.
3495 (the documents that use UTF-8 input encoding)
3498 ==============================================================
3499 Luatex snapshot-20070202 was released 20070202
3500 ==============================================================
3503 * The pdftex stuff is now updated to 1.40.2, and on top of that, it has
3505 - an extra patch from Han The Thanh that adds a primitive to control
3506 the merging of fonts from external pdf images (\pdfreplacefonts),
3507 and a bugfix for virtual font handling.
3509 - an extra patch by Hartmut Henkel that removes a number of malloc()s
3510 and free()s from the calls to the compression library, thereby
3511 making luatex run a bit faster.
3513 * luatex now happily accepts the following low-level syntax:
3515 \font\myfont = <general text> <at specifier>
3517 It feeds the <general text> to either kpathsea or a lua script for
3518 further processing after stripping the braces.
3520 In itself, this is not all that useful, but the reason for this
3521 syntax extension is that it paves the road for a macro package
3522 to do something like this:
3524 \font\myfont = {font="Times New Roman", color="\darkred",
3525 encoding="ec", features="liga", size=10bp}
3527 without having to resort to system-specific quoting mechanisms.
3528 Macro (and other) expansion takes inside the braced argument.
3530 (I am considering adding this extension to \input as well).
3532 * It is now possible to define a font into the font.fonts[]
3533 directly from lua, but becayse use is limited, I am only
3534 mentioning it to be complete.
3537 <number> id = font.define(<table> font)
3539 * There is a (not very reliable yet) virtual font parser accessible
3543 <table> vfdata = font.read_vf(<string> name, <number> size)
3545 The interpreter tries to give a reasonable representation of a
3546 virtual font file (the .vf file). Besides a few simple top-level
3549 designsize -- in scaled points
3551 name -- the file name
3552 checksum -- the vf checksum
3553 header -- the header comment (if any)
3555 it also has a top-level array 'fonts' wherein each item is a mini-
3556 array describing one of te mapped fonts. An example makes this
3559 "fonts" = { {"ptmr8a",655360}, {"psyr", 600000} }
3561 says that the first referenced font (index 1) in this virtual font
3562 is ptrmr8a.tfm loaded at 10pt, and the second is psyr.tfm loaded
3563 at a little over 9pt. These index numbers are used by the character
3564 command definitions that follow.
3566 At top level, there is a 'characters' array, just as for a normal
3567 font, except that each item has only two keys:
3569 "width" -- the tfm width (as stored in the .vf)
3570 "commands" -- an array of virtual font commands for a character.
3572 each of the items in the 'commands' array is itself a tiny hash.
3574 Each of those mini-hashes represents a single character packet
3575 command. Here is a 'commands' entry that contains every possible
3579 {"push"}, -- remember where we are
3580 {"right", 5000}, -- move right 0.08pt
3581 {"font", 1}, -- select the fonts[1] entry
3582 {"setchar", 97}, -- place character 97 'a'
3583 {"pop"}, -- go all the way back
3584 {"down", -200000}, -- move *up* about 3pt
3585 {"special", "pdf: 1 0 0 rg"} -- switch to red color
3586 {"rule", 500000, 20000} -- draw a bar
3587 {'special',"pdf: 0 g"} -- back to black
3591 * But the big news is that you can now define your own virtual fonts
3592 on the fly, by adding a few statements to the table returned to
3593 the 'define_font' callback.
3595 There are a few requirements:
3597 - The table has to have a top-level key 'type', and it's value
3600 The presence of this key with the specific value 'virtual'
3601 will trigger handling of the rest of the special virtual font
3602 fields in the table, but the mere existance of 'type' is
3603 enough to prevent luatex from looking for a virtual font
3606 Therefore, this also works 'in reverse': if you are absolutely
3607 certain that a font is not a virtual font, assigning the value
3608 'base' or 'real' to 'type' will inhibit tex from looking for a
3609 virtual font file, thereby saving you a disk search.
3611 - There must be a top-level 'fonts' array, as explained above.
3612 Any fonts that are not yet known to luatex at that moment,
3613 will be loaded automatically (Warning: do not ever use a font
3614 in 'fonts' with the same name you will return in the table you
3615 are defining right now!).
3617 - Each and every character in the fonts needs to have a 'commands'
3618 key, as explained above.
3620 The main point behind these restrictions is that a font is
3621 *either* a base font *or* a virtual font. It cannot be both
3625 ==============================================================
3626 Luatex snapshot-20070126 was released 20070126
3627 ==============================================================
3630 * Underscores in pascal identifiers are now retained.
3632 This took quite a bit of work. The web2c conversion tools
3633 needed only small adjustments, but most of the existing C
3634 code depended on the removal of the underscores. I had to
3635 go through changing many lines. 99% of all identifiers are
3636 now written the same on the pascal side as on the C side.
3637 This makes writing interface code quite a bit less confusing.
3639 Not everything is completely clean yet, because I did
3640 not want to change the web2c-specific C files. I often
3641 took the other approach and removed the underscores
3642 from the web2c options (like 'parsefirstlinep') in the
3643 change file instead. Ugly, but predictable.
3645 There is about a dozen or so of #defines left, that map
3646 memoryword -> memory_word
3650 * The virtual font parsing and interpreting is now done in C.
3651 (this is because it needs to be interfaced with the lua-based
3654 * I am in the process of merging: the VF stuff; the TFM stuff;
3655 the lua font loading; and the pdftex font backend into one
3656 interface, so there were some smallish changes relating to
3657 that as well. Nothing worth mentioning just yet except that
3658 luatex now will read "ovf" files as well as "vf" files.
3660 * There are a few really small bugfixes for bug reports I received
3661 on this list and by email.
3663 ==============================================================
3664 Luatex snapshot-20070119 was released 20070119
3665 ==============================================================
3667 The largest new bit is the existence of a font.fonts array, that you
3668 can use to query/adjust the internal defined tex fonts. See the manual
3671 Two small new lua extensions are added as well:
3673 * os.setenv() -- to change the environment
3674 * os.exec() -- a non-returning os.execute()
3676 And a bit of cleanup in the commandline processing.
3679 ==============================================================
3680 Luatex snapshot-20070117 was released 20070117
3681 ==============================================================
3683 * the pdftex core is updated to 1.40.1, and web2c to 7.5.6
3685 * the pdftex-specific documentation is removed
3687 * lua lpeg library updated to 0.4
3688 ( http://www.inf.puc-rio.br/~roberto/lpeg.html )
3690 * the C part of the lua md5 library is added to the binary
3691 ( http://www.inf.puc-rio.br/~roberto/md5/md5-5/md5.html )
3693 * --luaonly now puts the script itself at arg[0], and
3694 preceding commandline items in the negative indices
3695 (instead of starting the count at zero).
3696 This new approach is compatible with the standalone lua
3700 ==============================================================
3701 Luatex snapshot-20070107 was released 20070107
3702 ==============================================================
3704 Hot on the heels of 20070105, a new snapshot. It turns out
3705 that using the callback to define a font broke all ligatures.
3706 This snapshot fixes that, and it has a few minor updates to
3707 the manual. Next shapshot will be after the inclusion of
3710 ==============================================================
3711 Luatex snapshot-20070105 was released 20070105
3712 ==============================================================
3714 * the calculations that converted lua strings into tex units
3715 were horrendously wrong, this was discovered by Pawel.
3717 * io.lines() was still using the old, line ending sensitive,
3718 code from the lua core distribution
3720 * The main font memory is allocated as needed^(1) instead of
3721 statically pre-allocated.
3723 * ligatures and kerns are separated completely from each other,
3724 so use of \noligatures no longer inhibits kerning as well
3726 * Metrics can be loaded using a callback: 'define_font'.
3727 The value returned should be a lua table representing a tfm
3730 * there is a new lua table: font. It has one function:
3731 font.read_tfm() that returns a table reprentation of the tfm
3732 contents, for use with the above mentioned callback
3734 * I dropped suppport for "Level 1" OFM files. I would like
3735 to have a try at those extended font files, but I lack
3736 examples (fonts nor documents). I am not even sure such
3737 fonts have ever existed in the 'real world'.
3741 ==============================================================
3742 Luatex snapshot-20061208 was released 20061208
3743 ==============================================================
3745 * There is a new switch: --safer. This disables a number of lua
3746 functions that are more or less dangerous (a detailed list is
3749 * Two longstanding bugs have been fixed: \latelua works once
3750 again (patch by Hartmut) and a bug that caused mysterious crashes
3751 turned out to be a problem inside the paragraph builder
3752 (reconstitution of ligatures)
3754 * Six new string iterators have been added to the string library:
3755 string.characters (one 1-letter string)
3756 string.bytes (one byte)
3757 string.characterpairs (two 1-letter strings)
3758 string.bytepairs (two bytes)
3759 string.utfcharacters (a one-character utf-8 string)
3760 string.utfvalues (a unicode code point number)
3762 * The top 256 values of the unicode range (starting at hex
3763 value "10FF00) are now reserved for byte output. Characters
3764 in that range will be written by luatex after substracting
3765 that offset. The net result is that \char"10FFA9 is written
3766 as byte value hex A9 = decimal 169 = copyright sign in latin1
3768 This trick allows byte-oriented output to \pdfliterals and
3769 \specials, but should be considered very experimental.
3771 * There is a new callback called 'process_input_buffer' that can
3772 be used to mutate the line buffer just before LuaTeX actually
3773 starts looking at it.
3775 * The statistics table now has readable items
3777 statistics.lasterrorstring
3778 that represent TeX's current input id and the last error string
3780 * The show_error_hook callback no longer receives any arguments
3781 * There is a new switch: --safer. This disables a number of lua
3782 functions that are more or less dangerous (a detailed list is
3785 * Two longstanding bugs have been fixed: \latelua works once
3786 again (patch by Hartmut) and a bug that caused mysterious crashes
3787 turned out to be a problem inside the paragraph builder
3788 (reconstitution of ligatures)
3790 * Six new string iterators have been added to the string library:
3791 string.characters (one 1-letter string)
3792 string.bytes (one byte)
3793 string.characterpairs (two 1-letter strings)
3794 string.bytepairs (two bytes)
3795 string.utfcharacters (a one-character utf-8 string)
3796 string.utfvalues (a unicode code point number)
3798 * The top 256 values of the unicode range (starting at hex
3799 value "10FF00) are now reserved for byte output. Characters
3800 in that range will be written by luatex after substracting
3801 that offset. The net result is that \char"10FFA9 is written
3802 as byte value hex A9 = decimal 169 = copyright sign in latin1
3804 This trick allows byte-oriented output to \pdfliterals and
3805 \specials, but should be considered very experimental.
3807 * There is a new callback called 'process_input_buffer' that can
3808 be used to mutate the line buffer just before LuaTeX actually
3809 starts looking at it.
3811 * The statistics table now has readable items
3813 statistics.lasterrorstring
3814 that represent TeX's current input id and the last error string
3816 * The show_error_hook callback no longer receives any arguments
3818 * The statistics table now has readable items
3819 statistics.luabytecodes
3820 statistics.luastates
3821 statistics.luabytecode_bytes
3822 statistics.luastate_bytes
3823 for memory statistics reporting
3826 * The statistics table now has readable items
3827 statistics.luabytecodes
3828 statistics.luastates
3829 statistics.luabytecode_bytes
3830 statistics.luastate_bytes
3831 for memory statistics reporting
3834 ==============================================================
3835 Luatex snapshot-20061204 was released 20061204
3836 ==============================================================
3838 * The LuaTeX interpreter can now be run as a standalone lua script
3839 processor, by using a commandline like this:
3841 luatex --luaonly=luatools.lua
3843 * Luafilesystem (http://www.keplerproject.org/luafilesystem/ ) is
3846 * There are a total of eight new file discovery callbacks:
3855 this enhances the orthogonality of the callback system, nothing
3856 fundamental is changed.
3858 * There is a new callback called 'process_input_buffer' that can
3859 be used to mutate the line buffer just before LuaTeX actually
3860 starts looking at it.
3862 * The 'reader' and 'close' functions from 'open_read_file' now
3863 receive the table they are defined in as a function argument,
3864 that can be used as a per file localized data store.
3866 * Updated the Lua to the latest 5.1.1, with all known bug patches
3867 from the website applied as well
3869 * Runtime autoloading of lua .so files is now off on all platforms.
3871 * The statistics table now has readable items
3873 statistics.linenumber
3874 that represent TeX's current file name and line number
3876 * The support for user-defined type3 font .pgc files and the
3877 associated 'read_miscfonts_file' callback has been removed.
3878 (nobody used it anyway)
3880 * General cleanups to the source tree and build process.
3882 ==============================================================
3883 Luatex snapshot-20061023 was released 20061023
3884 ==============================================================
3886 * there was a missing callback: find_font_file
3887 * program_invocation_name was not set
3888 * buf_size could not be more that 300k
3891 ==============================================================
3892 Luatex snapshot-20061013 was released 20061013
3893 ==============================================================
3895 Last friday I uploaded a new snapshot and today I finally
3896 finished updating the manual to go with it. The changes all
3897 relate to startup, file i/o, and callbacks. The main achievement
3898 is: you can now run luatex without it *ever* initializing kpathsea.
3900 Because I am lazy, I have checked in the pdf of the manual
3901 as well, so that I can say: Please look at
3903 https://foundry.supelec.fr/plugins/scmsvn/viewcvs.php/manual/
3904 /luatexref-t.pdf?root=luatex&rev=148&view=log
3906 for all the details. :-)
3908 ==============================================================
3909 Luatex snapshot-20061002 was released 20061002
3910 ==============================================================
3913 * Some infrastructure changes:
3915 libs/slnunicode-0.9.1/ renamed to libs/slnunicode/
3919 (zziplib is using a different version of autofoo. I know I have
3920 messed up something in the build process, but the bit we need
3921 compiles ok so I've postponed attempting to fix it)
3923 * The callback logic has changed quite a bit.
3925 - all callbacks are now only possible in lua state 0.
3927 - The callback 'input_line' has disappeared, and is replaced by
3928 'open_read_file'. One of the return values of that callback
3929 is a table that defines a 'reader' function for line reading.
3931 See the manual for further information on this.
3933 - There are some new callbacks for the reading of various binary
3934 files. The current ones are:
3936 "read_ocp_file", "read_vf_file", "read_data_file", "read_font_file",
3939 The rest of the file types will follow soon (fonts, enc files, and
3942 - There are also some new callbacks that 'find' a file's pathname:
3944 "find_truetype_file", "find_type1_file", "find_image_file"
3946 here too, more will follow later.
3948 - the functions from io. that were copied to texio have been removed
3949 again. The new callbacks do not pass file pointers around, so
3950 they ere not longer needed
3952 - the 'open_write_file' is temporarily unavailable
3954 * startup.lua is now always loaded into lua state 0
3956 * The luazip library from kepler is linked in, so there the table 'zip'
3957 is accessible from all lua states.
3959 ==============================================================
3960 Luatex snapshot-20060922 was released 20060922
3961 ==============================================================
3963 * The texio table has gained a new function:
3965 tex_file = texio.open(filename)
3967 returns a file handle of a type that luatex can use
3968 internally (the return of io.open is unusable in callbacks
3969 because it will be garbage-collected at a random time)
3972 * In related news, there are two new callbacks you can define:
3974 callback.register('open_read_file', f)
3975 callback.register('open_write_file', f)
3977 where your function should have the following conventions:
3979 function f (number id_number, string asked_name)
3980 return boolean success, string actual_name, tex_file filep
3983 id_number: zero for the log or \input files or TeX's \read
3984 number incremented by one (\read0 becomes 1).
3985 asked_name: the user-supplied filename
3987 success: return false for error, true otherwise.
3989 The remaining two items are only looked at if you return true:
3991 actual_name: the true filename used (with extension!)
3992 filep: a file object opened though texio.open()
3995 * The tex.print function has an extra optional parameter:
3997 tex.print(ctt_id n, strings ...)
3999 This prints the strings using the catcode regime defined by
4000 \catcodetable n (assuming n is valid, see below)
4002 * The new function tex.sprint has the same lua conventions as
4003 tex.print, but behaces slightly different on the tex side:
4005 ** tex does not switch to the 'new_line' state (this implies
4006 that leading spaces are not ignored)
4007 ** no \endlinechars are inserted
4008 ** trailing spaces are not removed from the argument
4010 * Catcode tables are a completely new feature, that allows
4011 you to switch the current catcode regime in one simple
4014 \catcodetable <count>
4016 Switches to the use of a different set of catcodes (table),
4017 that is stored under the number <count>. Such a table has to
4018 be previously created using one of the two command below, or
4019 the number 0 (which is pre-inititialized)
4021 This command obeys normal grouping rules.
4023 \initcatcodetable <count>
4025 creates a new, global, independent catcode table with catcodes
4026 matching the code that are predefined by initex (tex -ini).
4028 This allocation is global
4030 \savecatcodetable <count>
4032 copies the current set of catcodes to a new, global, table
4033 with id number <count>. The definitions in this new table
4034 are all treated as if they were made in the outermost level.
4036 This allocation is global
4038 At the end of each grouping level, items within all existing
4039 catcodetables are restored, regardless of which one is the
4040 currently active table.
4042 Catcode table numbers cannot be larger than 0xFFFFFFF (228-1)
4044 * There is a new lua table: lua. It contains three read-only
4047 lua.id -- the id number of the instance
4048 lua.version -- a luatex version identifier string
4049 lua.startupfile -- the full filename (+path) of startup.lua
4051 and it also contains a read/write array:
4053 lua.bytecode[] -- lua executable bytecode
4055 This array can be used to save and restore lua functions
4056 across lua states. The accepted values are for assignments
4057 are functions and nil. Likewise, the retrieved value is
4058 either a function or nil.
4060 The contents of the lua.bytecode array is stored inside the
4061 format file, so it can also be used to preload lua code.
4064 * The format files are quire a bit smaller than before
4067 ==============================================================
4068 Luatex snapshot-20060915 was released 20060915
4069 ==============================================================
4071 * There is a new TEX primitive: \formatname. It is similar
4072 to \jobname (read-only). In initex, the expansion is empty,
4073 otherwise the expansion is the same as the \jobname from
4076 * the lua "tex" table has been expanded with a few of the 'convert'
4077 codes (read-only). The supported ones at this moment are:
4084 tex.pdfnormaldeviate
4091 This list looks haphazard, but it really is not. These are
4092 all the cases of the 'convert' internal command that do not
4093 require an argument.
4095 * The metatables of the subtables like tex.dimen[] etc. are now
4096 adjustable from lua (not that I recommend doing that;-)).
4098 * On the lua side, there is a new global value: "luaid"
4099 It holds the internal id number of this \directlua instance.
4101 * There is a new lua table, "callback", that has the single function
4102 "callback.register", used to register callbacks. This replaces
4103 the previous concoction (see my message about snapshot 20060901).
4106 callback.register(<callback name>,function (f) ... end)
4108 where the <callback name> is for the moment, either "input_line"
4109 or "show_error_hook".
4111 This function internalizes the callback function in such a way
4112 that you no longer have to worry about \luacallback (which has
4113 been removed), nor does it matter if you redefine a function
4116 The internal testing for callback presence is also quite a bit
4117 faster, thanks to this change. Callback assignments are global
4118 and the "input_line" always takes effect starting on the next
4119 input line to be read from an actual file.
4122 * \detokenizedlua has been removed. It is functionally replaced by
4123 the new function call tex.write("").
4125 Each argument to each call of tex.write () counts as an input
4127 ** all catcodes on that line are either 'space' (for " ") or
4128 'character' for all others.
4129 ** there is no \newlinechar appended.
4131 * The implementation of tex.print() has changed as well:
4133 ** the very last tex.print() line from a \directlua
4134 will no longer have a trailing \newlinechar
4135 (this is very convenient when \directlua is used
4137 ** tex.print() is quite a lot faster than before, and the total amount
4138 of returnable text from a \directlua is now only limited by
4139 available system RAM. However, each separate tex.print ()
4140 argument has to fit in TeX's input buffer.
4142 * The new primitive \luastartup can be set inside the format file
4143 to specify the lua instance number in which a possible runtime
4144 startup.lua script is executed (initex always uses 0)
4146 * There is a new primitive \scantextokens. Differences with
4147 eTeX's \scantokens are:
4149 ** the last line (usually only) from \scantextokens
4150 does not have a \newlinechar
4152 ** \scantextokens never raises an eof error.
4154 This means things like
4157 {\scantextokens{\ifnum1=1 true}\else false\fi}
4159 are legal input (but potentially dangerous!).
4162 local d = tex.dimen["unknowndimen"]
4163 'd' will now become "nil" instead of raising an error
4166 tex.dimen["unknowndimen"] = d
4167 is still (and probably will remain) illegal
4169 ==============================================================
4170 Luatex snapshot-20060908 was released 20060908
4171 ==============================================================
4173 * BIG CHANGE: \directlua now runs \scantokens internally.
4175 There is no longer a need to call scantokens yourself, the
4176 tex.print() output is now fed straight into a pseudo file.
4177 This is quite a bit faster as well as easier to use, but
4178 just in case you want it, the old behaviour is still present,
4184 * The texio library now has its own (partial) set of I/O commands,
4185 so that the standard lua io library is back to the distributed
4186 state (no more patched garbage collector)
4188 Note: This is really a very small change (it should not have any
4189 impact on wellbehaved input files), but I attempt to be complete
4190 in these notes, since there is no official documentation yet.
4193 * There is a new standard library available: kpse
4195 The most important function in that library is find_file:
4197 string = kpse.find_file(string filename
4199 [,boolean mustexist])
4201 both "type" and "mustexist" are optional, so the function
4202 has from one upto three arguments.
4204 "type" is like the '-format' argument of kpsewhich. You can
4205 run 'kpsewich -h' for a list. The default type is "tex".
4207 "mustexist" is like '-must-exist', and the default is false.
4208 If you specify "true" (or a nonzero integer), then the kpse
4209 library will search the disk as well as the ls-R databases
4211 The new library also has three other functions that map
4212 straight to kpsewhich commandline options:
4214 string = kpse.expand_path(string)
4215 string = kpse.expand_var(string)
4216 string = kpse.expand_braces(string)
4218 * There is a second callback possibility:
4220 texio.show_error_hook(string message,
4221 string|number indicator,
4224 This command is run from inside the TeX error function, and the
4225 idea is to allow you to do some extra reporting on top of what
4226 TeX already does (none of the normal actions are removed).
4228 "message" is the formal error message tex has given to the
4229 user (the line after the "! ")
4230 "indicator" is either a filename (when it is a string) or a
4231 location indicator (a number) that can means lots of different
4232 things like a token list id or a \read number.
4233 "lineno" is the current line number
4235 This is an investigative item only, comments are welcome but do
4236 not take the syntax seriously.
4238 The final goal IMO is the total replacement of TeX's error
4239 handling routines, but that needs lots of adjustments
4240 in the web source because TeX deals with errors in a somewhat
4241 haphazard fashion (it needs unification first). The current
4242 hook is only for 'testing the water'.
4244 * It is now possible to use named items in the
4250 subtables, so you can have
4252 tex.count.scratchcounter = 0
4253 local enormous = tex.dimen["maxdimen"]
4255 Luatex looks up the value for you on the fly. You have to use a
4256 valid \countdef (or \dimendef, or \toksdef), anything else will
4259 In a normal TeX file, you don't do \dimen\maxdimen, but the
4260 lua syntax seems to be a bit cleaner to me. The intention is
4261 to evntually also allow \chardefs and macros that expand
4262 into a number (todo)
4265 * The tex table has also been extended with a large list of internal
4266 parameters (partially read/write). It is possible to access
4267 about every primitive that you can use after \the *and* is a
4268 single token. So there is
4270 integer = tex.tracingcommands (\the\tracingcommands)
4271 integer = tex.prevgraf (\the\prevgraf)
4272 string = tex.output (\the\output)
4274 etc. for all of the internal parameters, but not the items
4275 that need extra arguments (like \the\scriptfont )
4277 The subset comprising simple integer and dimension registers
4278 are writable as well as readable (stuff like \tracingcommands
4281 The fact that both lists are still quite limited is a result of
4282 the very different types of things that can occur after \the and
4283 also on the LHS of an assignment. The remaining primitives will
4284 be filled in when there is a real need or implementation becomes
4285 simple, whichever comes first.
4289 ==============================================================
4290 Luatex snapshot-20060901 was released 20060901
4291 ==============================================================
4293 All changes are related to lua this time, and most are quite unstable
4294 / experimental. But first the things that are stabel/fixed bugs:
4296 * A VF loading bug that turned up in some of Hans' fonts
4299 * A small series of bounds checking fixes to \ocplist has been
4300 added to prevent the system from crashing due to array indexes
4301 running out of bounds.
4303 * The Lua file searching paths are now fixed. The search path for lua
4304 script files now contains the following items (tried in order)
4305 1. the local directory:
4307 (for document-specific files)
4308 2. the items from the expansion of kpathsea's $TEXMFSCRIPTS variable,
4309 but only the parts containing 'lua' as a subpath:
4310 $TEXMFSCRIPTS<lua>/?.lua
4311 $TEXMFSCRIPTS<lua>/?/init.lua
4312 (for format-specific files)
4313 3. the $SELFAUTOPARENT sibling directory named 'lib'.
4314 $SELFAUTOPARENT/lib/lua/5.1/?.lua
4315 $SELFAUTOPARENT/lib/lua/5.1/?/init.lua
4316 (for files that are not related to tex)
4318 The search path for dynamic libraries has only
4319 1. the local directory:
4321 (for document-specific files)
4322 2. and the $SELFAUTOPARENT sibling directory named 'lib'.
4323 $SELFAUTOPARENT/lib/lua/5.1/?.so
4325 (of course the extension is .dll on windows, but .dlls do not
4326 work at the moment so it will not do you much good)
4328 * There are two functions available within a new table called
4330 texio.write (luastring)
4331 texio.write_nl (luastring)
4332 both write the luastring to the same location(s) TeX writes
4333 its stuff. So if \batchmode is on, it writes only to the
4334 log, inside a \write, it prints to the current write file,
4337 A read|write interface to TeX's "file selector" will
4340 * At startup, luatex searches for a script named
4342 in the path list I explained above. If such a file exists, it is
4345 This happens right before the first input file needs to be opened
4346 (that is after format loading, but before any \everyjob tokens).
4348 From within the script, you can check the value of
4352 that is the 'format identification' as used by TEX. When the variable
4353 is equal to nil, luatex in in 'initex' mode, otherwise it will be
4354 something like: " (format=plain 2006.9.1)"
4357 Now for the experimental portion: callbacks. Here is what I have done
4360 * The main reason for wanting startup.lua is file (input) re-encoding.
4361 For this purpose, it is now possible to set up a callback for
4364 If you attach a Lua function to
4368 then from the next input line onwards, luatex will run that
4369 function whenever it needs a new input line from a text file.
4371 Your function will receive a file handle as argument, and
4372 should return either a string or nil (with nil signalling that
4373 the end of file has occurred).
4375 The trivial case is simply this:
4380 texio.input_line = reader
4383 Warning: The implementation is not totally finished yet. For the
4384 moment the file handle ("f" in the example) is a normal lua file,
4385 with a simple but important restriction: you cannot alter its value.
4386 You cannot f:close() it, or assign it a different value. luatex
4387 will eventually close the file itself.
4389 The restriction is a side-effect of a synchronisation problem with
4390 the lua garbage collector. Because of this, it also was necessary
4391 to turn off the automatic file closing code for normal lua io
4392 files (In other words: you have to close yourself all the files
4393 you opened yourself, and you should not close any files you did
4396 In the near future, "f" will become a special 'texio' file object
4397 and the needed functionality from the normal io library will be
4398 reimplemented. Along with that change, there will also be a callback
4399 to open (i.e. find) files, and a simple interface to the compiled-in
4400 kpathsea to use within that callback.
4403 ==============================================================
4404 Luatex snapshot-20060825 was released 20060825
4405 ==============================================================
4407 The main change in this snapshot is that it uses far less memory.
4408 luatex -ini on my linux machine went from 326Mb (last week) to
4409 93Mb (now), and "texexec luatex" now ends at 184Mb instead of
4412 This is achieved by two big changes:
4414 * The \mathcode, \delcode, \catcode, \sfcode, \lccode and \uccode
4415 tables are now sparse arrays that are implemented in C. They
4416 are no longer part of the TeX "equivalence table" and because
4417 each had 1.1 million entries with a few memory words each, this
4418 makes a major difference.
4420 See mathcodes.c and textcodes.c if you are interested in the
4421 gory details, but be warned: the code is still extremely
4422 rough and ugly. In particular, the dump and undump routines
4423 are far from optimal, resulting in somewhat larger format files
4424 than before (approx 1.3Mb larger with unicode-letters loaded,
4425 10k without); and the assignments do not show up when using
4426 the etex tracing routines \tracingassigns and \tracingrestores
4427 (code simply not written yet)
4429 * Single-character commands are no longer "special" internally,
4430 they are stored in the hash just like the multiletter csnames.
4433 ==============================================================
4434 Luatex snapshot-20060818 was released 20060818
4435 ==============================================================
4437 The snapshot is up to par with Aleph-RC4 (from texlive devel)
4438 and the latest pdftex beta (even newer than 20060811). However,
4439 there are some differences, to summarize:
4441 * There is no pool file (all strings are embedded)
4443 * -8bit and -translate-file are silently ignored
4445 * There is no mltex nor enctex (conflicts with aleph)
4447 * The tex functionality is always present and enabled
4448 (but see below about TeXXeT), so the asterisk or
4449 -etex switch for initex is not needed
4451 * "plus 1 filllllllll" does not generate any errors from TeX
4453 * TeXXeT (from eTeX) is not present, so the primives
4461 * The experimental pdftex regex match operations are removed,
4462 because that feature does not make much sense when lua is
4463 available so the primitives
4468 * The input translations from Aleph are not implemented, the
4469 16 related primitives are all missing
4475 \noDefaultOutputMode
4478 \DefaultInputTranslation
4479 \noDefaultInputTranslation
4482 \DefaultOutputTranslation
4483 \noDefaultOutputTranslation
4484 \noOutputTranslation
4486 All file IO assumes UTF-8, except that all the low-ascii
4487 controls except TAB, CR en LF are written to the terminal
4488 using ^^ notation (even these are binary in the log file).
4490 * Input characters can use the full range of Unicode,
4491 but it probably only makes sense to use values above
4492 the base plane for \mathcode and \catcode assignments,
4493 since the fonts as well as the hyphenation patterns
4494 are strictly 16-bit still.
4497 \pdfpagewidth and \pagewidth,
4498 \pdfpageheight and \pageheight,
4499 \fontcharwd and \charwd,
4500 \fontcharht and \charht,
4501 \fontchardp and \chardp,
4502 \fontcharic and \charic,
4503 are all aliases of eachother.
4507 clears a marks class completely.
4509 * The experimental pdftex primitives
4514 and provided without the extra 'pdf' prefix, so they are
4522 * I probably forgot to mention some things :-)