2 This file is in the public domain.
4 ==============================================================
5 Luatex beta-0.85.0 was released 2015111400 (5509)
6 ==============================================================
11 The 0.85 release is has a lot of changes. It is the prelude to 0.90 which itself is
12 a prelude to the 0.95 that will go on texlive 2016. The 1.00 release will happen
13 around the 2016 context meeting. After that 2.* will become the next experimental
14 branch (leading to 3.*). The most important changes between 0.80 and 0.85 are mentioned
15 below. For more information consult the manual.
17 -- the backend commands
19 There is a better separation between front- and backend code. Some of the generic
20 \pdf* commands have been promoted to core primitives (with different names), some
21 have been removes like ximagecolordepth and ximagebbox have been removed and
22 all that are left have been organized differently. The backend is now more abstract
23 and provides three primitives only
25 \pdfextension <keyword> <optional spec>
26 \pdfvariable <keyword>
27 \pdffeedback <keyword>
29 The first replaces \pdfannot and alike, the second replaces the variables that can
30 be sused to control behaviour, and the third accesses the read only variables. See
31 luatex-pdf.tex in the context distribution for a plain definition file.
33 The big advantage of the separation (basically core (lua)tex + extensions) is that
34 changes in the backend don't have consequences for the frontend and it's easier to
35 locate possible issues in the code. We might split a bit more at the lua end too.
39 The boundary, dir and localpar whatsits are now normal nodes. The xforms and ximage
40 whatsits are now a special kind of rule nodes (subtypes 1 and 2) and known as box-
41 and image resources (see manual). Also, empty rules are now a valid subtype (subtype
42 3) with related commands \nohrule and \novrule.
44 At the lua end one can now access the fields of a spec subnode directly in the parent,
45 which has the benefit of more control and robust assignments (no need to check for
46 writeability) while we keep the concept of shared glue specs (tex internals). By
47 staying close to traditional TeX the Knuthian documentation still applies in most
50 The pdf action nodes are now pdf_action whatsit nodes (so no longer a pseudo core
53 You can get the node subtypes with the node.subtypes function which adds a layer
54 of abstraction (foo.subtype = "string" might be added in the future).
58 The hz optimization already only supported level 2 optimization, but now has a variant
59 3 that does only stretch glyphs and not kerns. Pending is a change where we go back to
60 percentages instead of fractions of em.
64 The old/new codepath has been checked and italic correction which is fundamental
65 different between the engines has been (partially) redone.
67 We now have \mathsurroundskip that replaces mathsurround when it's non zero.
69 The \mathtoptions (old 1) directive can be used for testing. This primitive is mostly for
70 ourselves and used for development.
72 The \Umathcharclass, \Umathcharfam and \Umathcharslot primitives can be used to fetch
73 properties of a math character.
75 The new \Uleft, \Uright and \Umiddle fence operators accept "height <dimen>", "depth
76 <dimen>" and the "noaxis" keyword as well the "exact" keyword for non-fitting ones. There
77 is also \Uvextension. Optionally one can specify a 'class'.
79 The \Udelimiter[under|over] and \U[under|over]delimiter primitives accept a width as well
80 as left, middle and right keywords (for non fitting ones). There is also \Uhextension.
82 The \abovewithdelimiter command accepts 'exact' as keyword (before the dimension) which nils
83 the excessive spacing. The normal vgaps still apply.
85 We have a new fraction primitive \Uskewed with a companion \Uskewedwithdelims. Optional
86 keywords are 'noaxis' and 'exact'.
88 There is a new directive \mathdisplayskipmode (esp for controlling the > 0 below skip check).
90 With \mathscriptsmode you can fix anchoring of scripts (as needed for chemistry).
92 The \Umathaccent commands accept a width and fraction argument.
96 The discretionary command now accept an optional "penalty <number>" specification
97 where the penalty will be stored with the node. Default is hyphenpenalty.
101 texio.write/write_nl now writes to file if the first argument is a (valid) number
102 reference to a file opened at the tex end
106 The tex.<internal variable> is hopefully better now. The tex.get* also can handle
107 the built in registers. Especially prevdepth access should work out ok now.
111 As usual there are lots of small fixes, improvements, overhauls, small additions,
112 hopefully all mentioned in the manual.
116 This version is probably not compatible with the macro package that you use as some
117 engine specific initializations need to take place (\pdf commands) and some node types
118 have been changed. We now have separated pdf backend commands and the only left
119 primitive categories are: core, (tex), etex and luatex, so no more pdftex, omega and
120 umath (where the distinction became to fuzzy). Of course you can still prefix.
124 ==============================================================
125 Luatex beta-0.81.0 was released 2015100722 (5350)
126 ==============================================================
130 * A couple of primitives are removed, renamed and/or promoted to core (luatex) primitives.
131 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,
133 Updating to this version also might demand an update in the
134 macro package that you use!
138 % removed, can be done with callbacks if needed, one can define dimen dummies, like
140 \newdimen\pdfeachlineheight
141 \newdimen\pdfeachlinedepth
142 \newdimen\pdflastlinedepth
143 \newdimen\pdffirstlineheight
144 \newdimen\pdfignoreddimen
146 % removed, were already obsolete, one can \let them
148 \let\pdftexversion \luatexversion
149 \let\pdftexrevision\luatexrevision
150 \let\pdftexbanner \luatexbanner
152 % promoted (from pdftex), so pdf prefix gone, one can \let them
154 \let\pdfnormaldeviate \normaldeviate
155 \let\pdfuniformdeviate\uniformdeviate
156 \let\pdfsetrandomseed \setrandomseed
157 \let\pdfrandomseed \randomseed
159 % promoted (from omega), so pdf prefix gone, one can \let them
161 \let\pdfpagewidth \pagewidth
162 \let\pdfpageheight\pageheight
164 % redundant (etex wins over omega), so \font-less ones gone, one can \let them
166 \let\chardp\fontchardp
167 \let\charht\fontcharht
168 \let\charit\fontcharit
169 \let\charwd\fontcharwd
171 % promoted (from aleph)
176 % promoted (from pdftex)
182 % removed (from pdftex), so *pdf* ones gone, one can \let them
184 \let\ifpdfabsnum \ifabsnum
185 \let\ifpdfabsdim \ifabsdim
186 \let\ifpdfprimitive\ifprimitive
187 \let\pdfprimitive \primitive
189 % promoted (from omega)
197 % promoted (from aleph)
201 % promoted (from pdftex)
212 % promoted (from pdftex), so *pdf* ones gone, one can \let them
214 \let\pdfprotrudechars\protrudechars
215 \let\pdfadjustspacing\adjustspacing
217 \let\pdfnoligatures \ignoreligaturesinfont
218 \let\pdffontexpand \expandglyphsinfont
220 % promoted (from pdftex), so *pdf* ones gone, one can \let them
222 \let\pdfsavepos \savepos
223 \let\pdflastxpos\lastxpos
224 \let\pdflastypos\lastypos
226 % on the todo list are:
228 \pdfoutput : \outputmode
229 \pdfmatrix : will get a normal syntax, no weird { } parsing
231 \pdfcolorstackinit : might become obsolete
232 \pdfcolorstack : might become obsolete
234 So, apart from a few, the \pdf* primitives now relate to the backend only.
236 % There is also a new primitive:
240 This one determines the minimum word length (per language).
241 At the same time we moved the (ex)hyphenpenalties
242 in the disc nodes so you can inject discretionaries with specific penalties.
244 There will also be an updated manual.
248 * new epdf.openMemStream(s,l,docid)
249 to create a pdf from a lightuserdata or string.
250 (experimental, do not use in production.)
252 * uniform random generator in mplib is now specific for each numbersystem;
254 * too_precise implemented for binary number system;
259 ==============================================================
260 Luatex beta-0.80.0 was released 20150319 (5195)
261 ==============================================================
263 * New library newtokenlib. It will replace the current token lib.
264 * Fixed a bug on the normal random generator for double/decimal/binary
266 * Several others bugs fixed.
269 ==============================================================
270 Luatex beta-0.79.3.1 was released 20150122 (5140)
271 ==============================================================
273 * Fixed a bug in mp.w with a wrong input that gives a seg. fault.
277 ==============================================================
278 Luatex beta-0.79.3 was released 20150121 (5130)
279 ==============================================================
282 * It's now possible with the MinGW compilers to build luatex and luajittex as DLL
283 for Windows 32bit/64bit. The files are:
284 libkpathsea-6.dll luajittex.exe luatex.exe texlua52.dll texluajit.dll
285 In the next release the build.sh script be updated; for the moment just add
286 "--enable-shared -disable-native-texlive-build " after --disable-all-pkgs
288 Building as DLL was tested only for Windows.
290 * When possibile symbols in the exe are now hidden:
291 this should avoid conflicts with the loading of dynamic shared object.
293 * several bugfixes and improvements. The patches for MetaPost
294 fix seg. faults occourred with wrong inputs.
296 mp_get_numeric_value, mp_get_string_value, mp_get_boolean_value
297 works if the value is a variable (i.e. not an internal variable,
298 a loop variable and a macro argument);
299 only mp_get_numeric_value now has support for loop variable
300 and internal variable (but still not for macro arguments).
303 ==============================================================
304 Luatex beta-0.79.2 was released 20141111 (5082)
305 ==============================================================
308 * WARNING: the structure of the format file is changed.
309 After the Web2C \TeX's magic constant: "W2TX" there is now
310 a FORMAT_ID, a 32bit field that cannot be between 0 and 256 (included)
311 so that there are no conflicts with the preexisting structure
313 The value can be seen with --debug-format and currently is
314 907 (the sum of the values of the bytes of the ASCII string "don knuth").
316 * There is a new set of lua functions for StructElement and Attribute,
317 convenient (even if not indispensable) for tagged pdf.
320 * several bugfixes and improvements.
323 ==============================================================
324 Luatex beta-0.79.0 was released 20140328 (4960)
325 ==============================================================
327 * The luafontloader now returns 'tsidebearing' glyph values
328 for OT/TT fonts, if applicable.
330 * new lua variables: stats.luatex_hashtype, stats.luatex_hashchars,
331 stats.lastluaerrorstring; the luajittex string hash method is now
332 lua 5.1 compliant which gives better results for similar strings
334 * new lua functions: tex.init_rand(), tex.uniform_rand(),
335 tex.normal_rand(), tex.lua_math_randomseed(), tex.lua_math_random(),
336 tex.show_context(); these helpers make luatex and luajittex compatible
338 * In the lua node interface, there were often issues with rubbish
339 in (especially) 'prev' fields because luatex itself never looks
340 at those values. This is now cleaned up to prevent weird stuff
341 happening inside lua node processing code.
343 * pdf.pageattributes, pdf.pagesattributes, pdf.info, pdf.catalog,
344 pdf.names and pdf.trailer now behave consistent and can be used
345 to add these properties at the lua end in addition to their \pdf*
346 counterparts atthe tex end; there are now pdf.get* and pdf.set*
347 commands for them too (in future versions the old ways can become
350 * new accessors pdf.geth, pdfgetv, pdfgetpos, getgetmatrix as well
351 as pdfhasmatrix helpers (in future versions the direct pdf.h and
352 pdf.v accessor can become obsolete)
354 * the pdf.pdf* variables have been removed (they were already
355 obsolete for some years)
357 * a new properties mechanism for associating lua tables with nodes
358 that get cleaned up when nodes a freed (see manual for details)
360 * several improvements to the way temporary (backend) data is stored
361 at the lua end (better protection, more consistent)
363 * a 'l' type for user nodes that holds a lua variable (can be set
366 * if a late lua node is set at the lua end the string value can be
367 a function as well which is then executed during serialization to
370 * Various small speedups
372 * Various smallish fixes to the node direct interface
374 * LPeg is now at version 0.12
376 * Some small fixes to the CFF (font) parsing
378 * Font file inclusion reporting messages on the terminal now
379 comply to the texconfig.trace_file_names setting
381 * Removed some of the additional luafontloader.info() return
382 information that was added in 0.78.2, but could not work
385 * new primitive \luafunction (see manual), with associated
386 lua.get_functions_table() function
388 * lua error message reporting has been altered a bit to make
389 the distinction between \directlua and other lua source code
392 * Additional pdf document data functionality in the 'pdf' table
393 has been cleaned up internally
395 * Additional pdf destination names can now be set via lua.
397 * New callbacks: finish_pdfpage, show_error_message,
398 show_lua_error_hook, start_file, stop_file
400 * Handling of \tracinglostchars is fixed
402 * Embedded metapost library version is now 1.900
404 * luajittex is now included in the distribution. One can use
405 buildjit.sh to build both luatex and luajittex, where
406 supported by the platform
408 * Synchronization with the TeXLive sources updated the following
410 * libpng is now 1.6.10
411 * poppler is now 0.25.2
413 ==============================================================
414 Luatex beta-0.78.2 was released 20140113 (4748)
415 ==============================================================
417 * Extended luafontloader's info() function to include data
418 from the 'pfminfo' and 'names' structure.
420 * Fixed a bug in the luafontloader library that made loading
421 some fonts extremely slow (LastResort.ttf)
423 * Removed a recent extension in the luafontloader library that
424 made loading fonts with lots of glyphs slow (ArialUnicoce.ttf).
425 Note: the extension made sure that there were no duplicate
426 glyph names in the font after loading.
428 * Restored --recorder output for lua files (dofile/loadfile/io.open)
430 * One-at-a-time pattern adding from lua used to require enormous
433 * luatex's fontloader.to_table() no longer reports 'altuni' table
434 information for alternates that are solely driven by the font
435 encoding. This fixes loading time issues for fonts that fill
436 encodings by copying a single glyph many times, like e.g.
437 LastResort.ttf from Apple.
439 * The datestamp no longer appears in any banners. The associated
440 \luatexdatestamp primitive is deprecated and will be removed
443 * Synchronization with the TeXLive sources updated the following
445 * cairo is now 1.12.16
446 * pixman is now 0.32.4
449 * poppler is now 0.25.0
451 * That same TL synchronization also fixes these issues:
452 * Always write "\nendstream" to the PDF for PDF/A-1b compliance.
453 * Large file support (>4GB) in Lua
454 * Big images could overflow on systems where sizeof(long)=4.
455 * In writing CID CFF fonts to the PDF, and end_dict() was missing.
456 * Unknown 'post' table versions (found in some broken ttf/otf
457 fonts) are now treated as-if they specified version 3.0.
458 * Fix crashes on 32-bit systems caused by bad C header inclusion
460 * Handle '--luac' and '--luaconly' properly
461 * luatex is now released under GPLv2+, not just GPLv2.
462 * luatex can now find .ofm metric files even if the extension
463 is not given explicitly.
465 * node.unset_attribute() was broken in 0.78.0
467 * The UTF-8 commandline patch from 0.78.0 for Win32 was removed
468 again (did not work properly)
470 ==============================================================
471 Luatex beta-0.78.0 was released 20131231
472 ==============================================================
474 * Instead of using expanded fonts, just calculate the expanded
475 width of glyphs where needed, and carry expand info in the
476 glyph nodes (all based on Hans' suggestions). All font expansion
477 functions are disabled and most are removed.
479 * New, faster (but limited) direct node access from lua, see
480 the manual for details
482 * Support for Apple Advanced Typography (AAT) information in
485 * Extended build script for mingw/msys (includes 64-bit support)
487 * Various patches from/via Akira Kakuta for better Win32
490 * Fixes for some bugs in de pdfscanner library (mostly related
493 * Maximum hyphenated word length is now 64Kb characters.
495 * Various patches from Khaled Hosny and Luigi Scarso for the
496 luafontloader subsystem
498 * Fix for a crash when re-dumping formats
500 * Fix for a Selene unicode library bug where some characters in
501 UTF-8 were incorrectly flagged as having the 'Space' property
505 ==============================================================
506 Luatex beta-0.76.0 was released 20130405
507 ==============================================================
511 * Small patches from TeXLive 2013, as well as an update to the
512 latest libraries (libpng, poppler, etc.)
514 * Speed up printing (of TeX strings) to the terminal and log.
516 * New lua function node.end_of_math().
518 * Fixed a memory leak in the lua function pdfscanner.scan().
520 ==============================================================
521 Luatex beta-0.75.0 was released 20130301
522 ==============================================================
526 * New expandable primitive \Uchar.
530 * New version of lnodelib.c with speedups by Hans and Luigi.
531 Also added some extra sanity checks to the Lua node field
534 * Support 'umath' in tex.extraprimitives(), so that formats can
535 make the \Umath* primitives unprefixed, now that they will be
536 provided by XeTeX as well.
538 * Removed a bunch of deprecated primitives
539 * \AlephVersion, \Alephrevision, \Alephversion, \Alephminorversion
540 * \OmegaVersion, \Omegarevision, \Omegaversion, \Omegaminorversion
541 * \omathcode, \odelcode, \omathchardef, \omathchar, \omathaccent,
542 \odelimiter, \oradical
543 * \Umathbotaccent, \Umathaccents
545 * Fix large file support.
547 * Fix Lua's loadfile().
549 * Removed the cidmap callbacks again (let that be done by user lua
550 code after the fact).
552 * Removed the fatal error on fonts where num_glyphs is too high,
553 as that problem is actually harmless.
555 * Some compilation issues under Win32 and Solaris resolved.
557 * Allow math extender objects to be zero width.
559 * The 'epdf' library has been extended to deal with finding and
560 saving embedded files (catalog:numEmbeddedFiles() and catalog:
561 embeddedFile, new EmbFile object).
563 ==============================================================
564 Luatex beta-0.74.0 was released 20121224
565 ==============================================================
570 There are no patches to the core Lua files; a future version
571 of luatex will switch to loading the regular lua 5.2 dynamic
572 library instead of depending on a statically compiled
575 * A bleeding-edge version of luasocket is included, as there
576 is no 5.2-compatible official release yet.
578 * A new lua extension is the two-argument version of
579 string.dump from Luajit:
581 string.dump(function f, [boolean strip])
585 * The implied existence of the following lua libraries is now
588 debug, unicode.*, luazip, lfs, lpeg, zlib, gzip, md5,
589 socket.*, profiler, epdf, fontloader, mplib, and
592 Future versions of luatex will load these modules on demand
593 from dynamic libraries.
595 Please update your sources to include a 'require' line for
596 each of the library modules mentioned.
598 * Two new callbacks: find_cidmap_file and load_cidmap_file
599 (used by the fontloader to discover .cidmaps)
601 ==============================================================
602 Luatex beta-0.72.0 was released 20121210
603 ==============================================================
607 * update various used libraries, including mplib 1.770,
608 poppler 0.21, libpng 1.5, and lpeg 0.10.2.
610 * new 'pdfscanner' lua library.
612 * various OpenType math fixes, including \Umathcharnumdef.
614 * improved placement of bottom accents.
616 * various other small fixes that have accumulated over the past
619 ==============================================================
620 Luatex beta-0.70.1 was released 20110519
621 ==============================================================
625 * fixed: recorder file location from TL (Akira).
627 * fixed: missing newline on 'No output' line.
629 * fixed: relative names in synctex file.
631 * fixed: 16bit png images in generated %!PDF-1.4.
633 * fixed: building with (installed) libpng < 1.5.0
635 * fixed: year in --version output.
637 * fixed: box output to synctex.
639 * fixed: FontDescriptor for non-embedded OpenType fonts has an
640 invalid FontFile3 entry (#654)
642 * fixed: crash on non-existent images.
644 * fixed: small memory leak in the ipc code.
646 * fixed: tex.print() and tex.sprint() don't recognize -2 as the
647 first argument (#659)
649 ==============================================================
650 Luatex beta-0.70.0 was released 20110506
651 ==============================================================
655 * fixed: various changes needed for libpng 1.5.2.
657 * fixed: node.fields() for nodes without subtype.
659 * fixed: non-argument use of os.execute().
661 * fixed: tex.[s|t|]print() with invalid catcode table arguments.
663 * fixed: recorder filename location with --output-directory.
665 * fixed: display alignment in TRT mode.
667 * luatex now uses the standard synctex files from Jérome Laurens.
670 ==============================================================
671 Luatex beta-0.66.0 was released 20110412
672 ==============================================================
676 * fixed: linebreak_filter doesn't do its default job when
677 tex.linebreak is used
679 * fixed: \escapechar ignored by \meaning
681 * fixed: wrong px default
683 * fixed: font kern attribute inheritance
685 * fixed: "nop" unrecognized in virtual fonts
687 * fixed: assertion failure in dviluatex when font ptmr8t used
689 * fixed: tex.settoks for with strings with embedded zeroes
691 * fixed: an indexing problem with nonexistent font glyphs
693 * fixed: some crashes and other bugs on the 'subtype' and 'prev'
694 fields (not all node types have those fields)
696 * fixed: crash on token.csname_id ("")
698 * fixed: initialize the statically allocated node's type ids
700 * fixed: fencepost error in math parameter counting
702 * fixed: math family numbers > 255 are allowed
704 * fixed: compilation failure on Hurd
706 * fixed: a small bug leading to displacements when reading
709 * fixed: \directlua followed by \pdfximage generates error if
712 * fixed: a problem with \vadjust pre in alignments
714 * fixed: a lua stack growing problem in the backend in 0.65.0,
715 resulting in an inability to create more than a few thousand
718 * fixed: inclusion of Scribus-generated pdfs
720 * adapt: the default form margin is now zero (was 1bp before)
722 * adapt: libpng 1.4.4, zzuplib 0.13.60, mplib 1.504
724 * adapt: small changes to the build system and new imports from
725 the texlive repository
727 * feature: new function node.currentattr() queries the current
728 active attribute list
730 * feature: Lua font loading; ignore unknown enumeration keys in
733 * feature: JPEG 2000 image support
735 * feature: continuing work on the 'epdf' library
737 * doc: the 'epdf' lua library is now documented
739 * doc: various other manual corrections
742 ==============================================================
743 Luatex beta-0.65.0 was released 20101213
744 ==============================================================
748 * The Aleph and Omega version primitives are deprecated.
750 * The Apple Snow Leopard Truetype font collections now work
753 * Libpng has been updated to 1.4.4, and zlib to 1.2.5.
755 * New lua functions node.next() and node.prev().
757 * The already deprecated for some time node.protrusion_skipable()
758 function has been removed.
760 * fontloader.apply_featurefile() and fontloader.apply_afmfile()
761 now return nil,<errortable> on failure.
763 * The various node list fields in the lua node interface have
764 been renamed from 'list' to 'head', e.g. tex.box[0].head,
765 and the 'list' name is deprecated. For now, the deprecation
766 is silent, as 'list' will stay for quite some time. Please
767 update your lua source as soon as possible, though.
769 * The call node.type(<node>) now returns "node". The existing
770 functionality is otherwise unchanged.
772 * Luafilesystem has been updated to 1.5.0. NOTE: there is an
773 incompatible change in the directory iterator method.
775 * The restriction on linebreak_filter has been eased: at least one
776 horizontal box should be returned, but that is not necessarily
777 the last node any more.
779 * Backward compatibility has been restored for \meaning\mathchar
781 * node.first_character() has been renamed to node.first_glyph()
782 to better match its actual functionality.
784 * The \Umathaccent primitive now supports both/bottom keywords,
785 and \Umathbotaccent / \Umathaccents are now deprecated.
787 * The \Umathaccent primitive now also supports the fixed keyword,
788 which supports non-growing math accents even if the font says
789 there are extensible variants.
791 * Ongoing work on the epdf library.
795 * Assignment to \dimen65535 was broken earlier.
797 * <box>.head.prev is now always initialized to null (0).
799 * luatex -lua=<script> '\relax' no longer exits immediately,
800 instead going into interactive mode as it should.
802 * The \jobname was initialized wrongly for input file names
803 with multiple dots in them.
805 * The synctex file is now written in the right place when
806 --output-directory is given.
808 * \letterspacefont could cause crashes, especially when combined
811 * Luatex would crash on linux32 systems if it was build in an
812 environment where LFS (>2GB files) was enabled by default.
814 * Node lists created by node.copy_list() could not be hyphenated
815 due to an assertion error.
817 * Synctex support was partially broken since 0.60.0.
819 * With OpenType math fonts, accents with multiple parts
820 (like the \vec arrow) forgot to include all parts if the
821 accentee was too narrow.
823 * With OpenType math fonts, accents over any class except 0 and 7
826 * kpse.lookup("plain", {all = true}) was broken in kpathsea
827 itself (no extension given as well as --all specified).
829 * A FontForge bug made Cambria Math accents look bad, and the
830 placement of math top accents did not allow a marker at the
831 origin (patches by Stefan Philipp)
833 * Cut&Paste from PDF was sometimes broken due to bad ToUnicode map.
835 * Many small manual improvements (thanks to Paul Isambert)
837 * An other bugfix to lpeg 0.9 (from Roberto Ierusalimsky)
839 * Some small fixes to writet1.w (from Han The Thanh)
841 * A build failure because of bad libz configuration on Win32
843 ==============================================================
844 Luatex beta-0.64.0 was released 20101112
845 ==============================================================
849 * New lua functions pdf.refobj(), pdf.maxobjnum() and pdf.objtype()
851 * New lua function node.is_node()
853 * The max_strings configuration variable's maximum value is
854 raised to be identical to texlive's maximum (2097151), and
855 same for param_size (32767).
857 * The embedded mplib is now 1.503.
859 * Minor cleanups in the output of fontloader.to_table():
861 - removed out-of-range altuni's from the output
862 - don't dump the extra encodings, just the actual font encoding
863 - export the encoding's name also as 'enc_name' at one level up
864 - no longer exporting unset macstyles, nor zero uniqueids
865 - fix creationtime and modification time
867 * Ongoing work on the epdf library
871 * Fix a bug where an explicit hyphen prevented hyphenation for the
872 whole rest of the paragraph
874 * Internal font copying forgot to copy the last font dimen
876 * os.selfdir() is now documented
878 * patch quad (\fontdimen6) in \letterspacefont to be compatible
881 * Multi-page pdf inclusion was very slow in 0.63.0
883 * Some extra checks added to the handling of glue_spec node
886 * Some node.prev pointers have been corrected (but this is not
889 * A small fix to lpeg 0.9.
892 ==============================================================
893 Luatex beta-0.63.0 was released 20100909
894 ==============================================================
898 * Drop tex.ht[], tex.wd[], tex.dp[].
900 * Drop OCP support (and associated primitives).
902 * Add tex.catcode[], tex.lccode[], tex.sfcode[], tex.uccode[],
903 tex.mathcode[] and tex.delcode[] and associated functions.
905 * Add CIDset tables to the output pdf where appropriate.
907 * Added a 'string' field to late_lua nodes on the lua side. This
908 field does not convert the assigned string to a tokenlist.
910 * The result of fontloader.open() now has some virtual accessors
911 (as well as fontloader.to_table).
913 * There is now a `short reference' in the manual folder
918 * Fix a crash on an empty font (bugreport #468).
920 * Fix a crash for extremely long pattern arguments.
922 * Fix a crash on bad virtual character arguments in lua.
924 * Fix hyphenation exceptions.
926 * Prevent linebreak between initial local_par paragraph whatsit
927 and a following skip (bugreport #437).
929 * Fix placement of scripts on textstyle big operators in MATH
930 fonts (bugreport #466).
932 * Fix a crash on the return value of MPlib's 'postscript'
935 * Fix a crash on \leftghost & \rightghost in math mode.
937 ==============================================================
938 Luatex beta-0.62.0 was released 20100823
939 ==============================================================
943 * LuaTeX now uses libpoppler (0.12.4) instead of xpdf.
945 * All backend functions now report what file they were searching
946 for whenever a file cannot be found.
948 * Input-ed lua files are now mentioned in the fls file if
949 the --recorder switch is specified on the command line.
951 * Paragraph indentation hlist nodes and hlist and vlist nodes
952 generated by alignment rows and cells now have a subtype
953 (3 for indent box, 4 for rows/columns, 5 for cells).
955 * The 'epdf' lib is in active development and still growing.
957 * The 'fontforge' table is finally removed (was deprecated
962 * A new mplib import fixes two bad bugs in mplib:
963 - string equality test was wrong
964 - type declarations could delete pre-existing variables
966 * PNG images with transparency could create random size
967 differences in the generated PDF.
969 * In some special cases, font expansion could cause wrong
970 spacing in the generated PDF.
972 * \letterspacefont was broken since a very long time.
974 * The node subtype of the \leftskip and \rightskip glues was
977 * Some memory leaks have been removed.
979 * Various manual fixes.
981 ==============================================================
982 Luatex beta-0.61.0 was released 20100728
983 ==============================================================
987 * New lua library 'epdf' for introspection of PDF inclusions,
988 see the manual for details.
990 * Mplib version 1.502 is now included (which is still beta,
993 * new "finish_pdffile" and "pre_dump" callbacks.
995 * new function pdf.pageref()
997 * In the lua 'tex' library: assignment to internal glue
998 parameters is now allowed.
1000 * New lua function tex.error().
1004 * Fix for crashes on fonts with bad Panose values.
1006 * Fix for a box placement bug that could sometimes cause text
1009 * Fix for a few small PDF/A1-a compatibility bugs.
1011 * Fix \letterspacefont.
1013 * Fix \Ustopdisplaymath in combination with aligned displays.
1015 * In math delimiters, the last of a chain of predefined sizes
1016 was always ignored if there were also extensible parts.
1018 ==============================================================
1019 Luatex beta-0.60.2 was released 20100701
1020 ==============================================================
1024 * Various small portability fixes, especially for non-gcc
1027 * Updated synctex from Jerome Laurens.
1029 * fix bug #406: \pdfliteral hinders hyphenation.
1031 * fix pdf overprinting bug (related to \pdfliteral).
1033 * patch from Akira Kakuto that ensures that only absolute commands
1034 that are inside the %PATH% will be executed in win32's restricted
1037 * fix a buffer overflow in luafontloader.
1039 * fix cross-platform share-ability of generated formats.
1041 * fix a few typos in the manual.
1043 * fix trashing of the null glue spec by attribute reference code.
1045 * documented the deprecated state and brokenness of otp processing.
1048 ==============================================================
1049 Luatex beta-0.60.1 was released 20100428
1050 ==============================================================
1054 * renamed node.skipable() to node.skippable().
1056 * More git discovery patches in getluatexsvnversion.sh.
1058 * Added --warnings=[no|min|yes|max|all] option to build.sh.
1060 * While cross-compiling, build.sh now adds an extra linker switch
1061 to allow win32 exes to use 3G instead of 2G of virtual memory.
1065 * os.exec() & os.spawn() handled the environment differently from
1066 os.execute() on Win32 (patch from Tomek)
1068 * Builds with --enable-ipc were broken.
1070 * Assigning and acquiring \fontdimen s from TeX code was broken.
1072 * An initial attempt at fixing bug #372 (\predisplaydirection).
1074 * An attempt to fix \eqno/\leqno placements in mixed direction
1077 * Our local xpdf patch is reverted, it is not needed any more.
1079 * The os.selfdir variable was not documented, as well as broken
1082 * Fix "\input tikz hello \bye" bug, plus fix one sign error.
1084 * Fix handling of lua script files with UNC names.
1086 ==============================================================
1087 Luatex beta-0.60.0 was released 20100404
1088 ==============================================================
1092 * os.name now knows about CYGWIN (from Elie Roux)
1094 * Internal handling of direction specifiers is faster now.
1096 * Each glyph node now has three new virtual read-only fields:
1097 width, height, and depth (values in scaled points, of course)
1099 * There are new functions node.protrusion_skipable() and
1100 tex.badness() (useful for paragraph breaking in lua)
1102 * Also new: tex.linebreak(). See the manual for details.
1104 * All lua errors now report file and line numbers to aid in
1107 * Import of metapost 1.211.
1109 * pdf.pdfcatalog will be replaced soon by the new pdf.catalog
1110 pdf.pdfinfo will be replaced soon by the new pdf.info
1111 pdf.pdfnames will be replaced soon by the new pdf.names
1112 pdf.pdftrailer will be replaced soon by the new pdf.trailer
1114 * pdf.pdfmapfile and pdf.pdfmapline are replaced by the new
1115 pdf.mapfile() and pdf.mapline() functions. (a function interface
1116 fits these parameters better because they never return anything).
1118 * New read-write lua variables: pdf.pageattributes, pdf.pageresources,
1121 * getluatexsvnversion.sh now correctly detects git-svn and still
1122 manages to find a valid SVN revision number (from Patrick Gundlach)
1124 * Many of the source files have been converted to CWEB.
1128 * GNU libtool is now used to solve the various technical issues with
1129 dynamic loading of lua modules.
1131 * Error detection in scan_integer_part was wrong due to missing
1132 initialization of OK_so_far (spotted by Javier Mugica)
1134 * Synctex was broken in 0.51-0.52.
1136 * \lastlinefit was broken since ... well, nearly forever.
1138 * Reading of binary files with length zero was broken.
1140 * Trapping of unitialized rules (this was for sloppily created
1141 rule nodes from lua)
1143 * pdf.immediateobj('streamfile') was broken on 64-bit platforms.
1145 * tex.linebreak did not take the given left and right skip, but
1146 instead used the current TeX-side values (bug #356).
1148 * the found 'MAKE' command in build.sh is now fed into configure to fix
1149 problems with that not finding GNU make even when it is actually
1152 * dofile(<nil>) and loadfile(<nil>) in batch mode now give an
1153 error and continue instead of pointlessly waiting for user input.
1155 * Reverted commit #3417 (the buildpage experiment) as it causes bad
1156 things to happen when items are waiting during page breaks.
1158 * Overrule loaders[4] in --safer mode, make require() behave
1159 closer to normal lua 5.1, and add some nicer error messages
1160 (based on an email and patches from Manuel Pegourie-Gonnard)
1162 * Added an extra sanity check for GDEF loading in luafontloader,
1163 based on a crash caused by Linux' AkaashNormal.ttf.
1166 ==============================================================
1167 Luatex beta-0.52.0 was released 20100316
1168 ==============================================================
1172 * Various small manual improvements.
1174 * A better version of getluatexsvnversion.sh, from Tomek.
1176 * node.copy_list() now allows the second (optional) argument to
1179 * An import of the current state of the texlive repository
1180 (kpathsea and build system).
1184 * An attempt fix for bug #345 (math kerning is not perfect): when the
1185 current math font is a new math font, check against \catcode <cur_c>
1186 == 11 to suppress the italic correction, instead of looking at
1187 the value of space(<cur_f>).
1189 * There is a new <tfmtable> key: 'units_per_em' (defaults to 0).
1190 This is part of a fix for bug #200 (Problem with CFF fonts having
1191 em-size other than 1000): there is a special correction to the
1192 embedded cff font itself and the font scale if the font to be output
1193 is opentype or type1 in unicode encoding and the 'units_per_em
1195 <tfmtable>.units_per_em has to be passed back to luatex from
1196 the lua font loading code for this to work.
1198 * A fix for bug #314 (problem with pk file).
1200 * lua code can no longer change the internal preallocated glue_spec
1201 nodes (as that resulted in weird spacing bugs). For this, glue_specs
1202 now have a new field: 'writable'. If that field is false, a copy
1203 has to be made of the glue_spec instead of doing an assignment
1206 * Setting of \textdir inside the output routine could trash output
1207 on following pages due to a lingering internal variable.
1209 * \pdfthread crashed because the arguments were handled in reverse
1212 ==============================================================
1213 Luatex beta-0.51.0 was released 20100312
1214 ==============================================================
1218 * Various small manual improvements.
1219 * The backend message "cannot open Type 1 font file for reading"
1220 now reports which Type1 font it was looking for.
1221 * Fontforge clears some font names at loading time that will be
1222 refilled in at font generation time, but the fontloader should not
1223 do that. Patch from Khaled Hosny.
1224 * New synctex code imported from TeXLive.
1225 * luamd5/md5.h is renamed to luamd5/luamd5.h to avoid confusion.
1226 * Embedded mplib is now 1.209.
1227 * Some experimental tweaking of buildpage_filter, see the manual
1229 * Luatex now detects kfreebsd (from Alan Braslau)
1230 * The new lua function tex.sp() converts a string to a number
1231 representing scaled points.
1232 * There is now support for revision numbers in the banner and stats
1234 * The command line help and manual documentation page is extended.
1235 * node.hpack() now also accepts "cal_expand_ratio" and "subst_ex_font"
1237 * node.hpack() and node.vpack() now give back the badness of the box
1238 as second return value.
1239 * node.copy_list() now allows a second (stop) argument, this stopper
1241 * new lua functions in lfs: lfs.readlink() and lfs.shortname().
1242 * new lua function tex.tprint() that can combine multiple catcode
1243 regime prints in one function call.
1244 * new lua sub-table: tex.nest[] (read/write access to the semantic
1246 * New lua functions in kpse: kpse.lookup() and kpse.version(). See
1247 the manual for more details.
1248 * New lua function tex.shipout().
1252 * There problems in the pdf output for Type3 (pk) fonts.
1253 * Fix a bug that allowed bad commandline quoting.
1254 * Fix a bug that sometimes caused crashes when \pdfprotrudechars.
1255 * The build script now exports CONFIG_SHELL to avoid problems with
1257 * The was a bug in the generated /Image /ProcSet.
1258 * status.font_bytes reported the wrong value.
1259 * Lots of compiler warnings are removed (thanks Javier Mugica).
1260 * Patch to fontloader.info() to accept filenames with embedded
1262 * Fix a \write error with docstrip package.
1263 * Fixed a crash on AdobeMyungjoStd-Medium.otf.
1264 * Fix coco stack overflows, needed for lpeg.
1265 * \pdfcompresslevel wasn't initialized for early immediate objects.
1266 * Fix for slanted fonts when HZ was on (slant angle was multiplied).
1267 * When concatenating content streams, put a space between them.
1268 * Allow pfb lines to end with \r as well as \n (for msam10.pfb).
1269 * Fix the internal string->scaled point conversion in the lua
1271 * Memory leaks in the fontloader removed, thanks to patches from
1273 * Fix a crash caused by the combination of coroutines and font.each().
1277 * Support for Type3 .pgc files (nobody used them).
1279 ==============================================================
1280 Luatex beta-0.50.0 was released 20091224
1281 ==============================================================
1285 * Fonts now listen also to the 'extend' key in the lua font
1286 metrics table, and the processing for this is done via de
1287 pdf text matrix instead of via the font matrix, which means
1288 it now works for all font types.
1290 * The embedded Metapost library is now at version 1.209.
1294 * It is no longer possible for fonts from embedded pdf files
1295 to be replaced by / merged with the document fonts of the
1296 enveloping pdf. This regression may be temporary, depending
1297 on how the rewritten font backend will look after beta 0.60.
1301 * Use of \middle confused the \mathstyle operation.
1303 * \pdfcolorstack handling was broken.
1305 * node.unset_attribute() had a bug whereby it inverted the
1306 requested result in some cases (the node on which the unset
1307 was called was sometimes the only node at the current level
1308 that *kept* the attribute).
1310 * During font expansion, the internal font copy had one character
1311 information object less than the original, resulting in the
1312 disappearance of a glyph in some fonts when font expansion
1315 * Placement of operator scripts of OT MATH fonts is adjusted
1316 to be conformant with Word's logic where the italic correction
1317 is only used to tuck in the subscript and for nothing else.
1319 * luafontloader.open() no longer writes directly to stderr in
1320 case of internal font errors.
1322 * Any <pdf_refobj_node>.objnum could not be assigned to.
1324 * The lua 'pdf' table could not be assigned to.
1326 * The lua 'md5' library was returning incorrect results on
1327 64-bit architectures.
1329 * Luatex now compiles on GNU Hurd systems.
1331 * Fix segfault when embedding stream file object (these
1332 backend segfaults were a side-effect of the string pool
1335 ==============================================================
1336 Luatex beta-0.47.0 was released 20091218
1337 ==============================================================
1341 * New read-write lua variables pdf.pdfcatalog, pdf.pdfnames,
1342 pdf.pdfinfo, pdf.pdftrailer
1344 * The horizontal mode nodes that are added to lines during line
1345 breaking now inherit the attributes from the first and last node
1346 inside the created line.
1348 * The new function pdf.registerannot(<number>) registers an
1349 annotation object number to be included in the current
1350 page's /Annots list.
1352 * The variables <metrics>.Mathconstants.FractionDelimiterSize
1353 and <metrics>.Mathconstants.FractionDelimiterDisplayStyleSize
1354 are added to the font table. This allows proper setting of the
1355 size parameters for TeX's ...withdelims math primitives.
1357 * The internal representation of the string pool is reorganized
1358 (the pool of string characters is now allocated dynamically),
1359 and as a side-effect the lua variable status.init_pool_ptr
1360 is deprecated and will be removed in a later version. Also,
1361 status.pool_ptr now simply returns the current number of bytes
1362 in use for string characters.
1364 * There are new lua variables pdf.pdfmapline and pdf.pdfmapfile
1365 (write-only strings that mimic \pdfmapline and \pdfmapfile).
1367 * \pdfobj data and attribute are now stored as C strings instead
1368 of as token lists (this should speed up cases with a lot of data).
1370 * Artificially slanted fonts now work via the pdf text matrix
1371 (instead of adjusting the actual font) so that it now also
1372 works for non-Type1 fonts. The lua <metrics>.slant font key is
1373 now obeyed in all cases.
1375 * The lua function font.id(<string>) returns the internal font id
1376 number belonging to a control sequence name.
1378 * Pdf image inclusion is optimized such that objects from an
1379 external pdf will now be included only once even if they are
1380 referenced from multiple inclusions.
1384 * Protrusion for non-TLT documents did not work properly for
1385 the hyphenation character.
1387 * \lastbox could not remove the paragraph indent box for non-TLT
1390 * Pdf images (\pdfximage) are no longer kept open during the
1391 whole run, but closed and reopened. An error is raised if
1392 the file has changed between \pdfximage and \pdfrefximage.
1393 This prevents the 'too many open files' error when lots of
1394 images are included.
1396 * On Win32 Pdf image files are locked during the time that it is
1397 open, to prevent unnoticed file changes by external sources.
1399 * Compilation now again works on FreeBSD.
1401 * Format sharing between 32-bit and 64-bit architectures was
1404 * Unsetting attributes from lua could sometimes result in
1405 the unset state persisting beyond the current group level.
1407 * If something went wrong in the scanning of pdf action items,
1408 the error message reported the current primitive name
1411 * Luatex would crash on non-existant pdfs that were referenced
1412 from map file entries.
1414 ==============================================================
1415 Luatex beta-0.46.0 was released 20091126
1416 ==============================================================
1420 * The build.sh script now has better support for new MacOSX-es
1423 * Luatex now has experimental support for dynamic loading of
1424 external compiled lua libraries. Building luatex and loading
1425 external .so/.dll files is reported to work on Windows,
1426 linux and osx, other platforms are still unknown.
1428 * pdf.obj{type="stream"} no longer converts its argument to and
1429 from a tokenlist. This allows the use of binary data in the
1430 "string" argument. Such data does still have to hidden from
1431 the normal file parser by putting the code in a dofile()
1432 or by using string.char(), though.
1436 * Luatex 0.45.0 was not able to find truetype nor opentype fonts
1437 if there were no callbacks defined (patch from Pawel).
1439 * 0.45.0 printed the user input instead of the full pathname
1440 for \input-ed tex files.
1442 * The TFM reader now rejects fonts with tfm names that are
1443 longer than 255 characters because such font names cannot
1444 be stored in a DVI file.
1446 * The combination of \immediate\pdfxform followed by a later
1447 \pdfrefxform could cause broken pdf output files because
1448 the box used for the form could have been freed and even
1449 reused already at that moment in time, sometimes resulting
1450 in an invalid transformation matrix.
1452 * The placement of super- and subscripts for displaystyle
1453 \int's in CambriaMath is now better than before. It still
1454 needs a tweak to the metrics though: in the current version,
1455 the italic correction has to be substracted from the width
1456 of the integral sign to get correct placement (context mkiv
1457 does this). to be continued ...
1459 ==============================================================
1460 Luatex beta-0.45.0 was released 20091118
1461 ==============================================================
1465 * Loading big OTF fonts via lua is now much faster than before,
1466 at the expense of a bit of precision loss in the calculated
1469 * Two new token lists are provided: \pdfxformresources and
1470 \pdfxformattr, as an alternative to \pdfxform keywords.
1472 * \input and \openin now accept braced filenames.
1474 * The \endlinechar can now be set to any value between 0 and 127.
1476 * Luatex can now optionally use kpathsea to find lua require()
1479 * The new primitives \aligntab and \alignmark are aliases for
1480 the use of & and # in alignments.
1482 * \pdfrefximage [width <dimen>] [height <dimen>] [depth <dimen>] <imageref>
1483 overrules settings from \pdfximage for this \pdfrefximage call only
1485 * The print precision for small numbers in lua code (tostring)
1488 * Akira Kakuto suppled a patch that restricts writing to files
1489 with names such as latex.bat etc. (on windows only)
1491 * (un-feature): from now on luatex now only handles 4 direction
1492 specifiers: TLT (latin), TRT (arabic), RTT (cjk), and LTL
1493 (mongolian). The other directions now generate an error.
1495 * (un-feature): xpdf's automatic lower- and uppercasing retry attempts
1496 for nonfound image pdf files has been removed.
1498 * The callbacks hpack_filter, vpack_filter and pre_output_filter
1499 pass on an extra string argument for the direction, when known
1500 (nil == use default).
1502 * The lua functions node.hpack(), node.vpack() and node.dimensions()
1503 now accept an optional direction argument (not given == use default).
1505 * \pdfrefxform [width <dimen>] [height <dimen>] [depth <dimen>] <formref>
1506 scales a form object; similar principle as with \pdfximage: depth alone
1507 doesn't scale, it shifts vertically.
1509 * A change to the relative ordering inside font name discovery for use
1510 by the backend: now it tries <f>.psname first, as that is much less
1511 likely to contain spaces.
1513 * For ttc fonts, now the used subfont name and its index id are printed
1514 to the terminal, and if the backend cannot find a ttc subfont, the
1519 * Prevent crashes for lua-loaded fonts without a (tfm) name.
1521 * Remove spurious newlines in the output pdf that could be the
1522 result of using \pdfximage for an included pdf figure too early.
1524 * Full font embedding for wide otf and ttf fonts now really
1525 works (older versions only pretended that it did work).
1527 * node.dimensions() sometimes continued past the 'stop' node.
1529 * Images inside virtual fonts were broken.
1531 * The processing of \language=-1 was wrong, resulting in
1532 hyphenation attempts even though there was no proper language
1535 * Fix for finding files in --output-directory.
1537 * Fix for handling of --file-line-error.
1539 * tex.box[] assingments are now checked to make sure the assigned
1540 node has the right id (hlist or vlist).
1542 * show_node_list (as in \showbox) produced spurious local_par
1543 whatsit prints in the output after direction nodes.
1545 * The handling of pdf literals has been sped up.
1547 ==============================================================
1548 Luatex beta-0.44.0 was released 20091027
1549 ==============================================================
1553 * libpng is now 1.2.40.
1555 * hlist nodes now have a subtype to distinguish hlists generated
1556 by the paragraph breaking, explicit \hbox commands, and other
1557 (as-yet-undefined) sources.
1559 * \pdfobj now has an extra optional keyword: 'uncompressed',
1560 which forces the object to be written to the PDF in plain
1561 text (see the manual for the exact details).
1563 * The lua file from the luamd5 library (which provides the
1564 md5.hexsuma() function) is now embedded in the executable.
1568 * \latelua now works in DVI mode again.
1570 * status.output_file_name could crash when used too soon.
1572 * In 0.43, rules were not output at all in DVI mode.
1574 * \leavevmode\penalty-10000\penalty-10000 crashed luatex.
1576 * the API of margin kern nodes to lua was using the wrong
1577 fields in the nodes.
1579 * A few fixes to the manual.
1581 * PDF Xref stream dicts were slightly non-conformant.
1583 * There was too much space between two consecutive math displays
1584 (this bug was inherited from Aleph)
1586 * Synctex was broken (thanks, Akira)
1588 * Font mark classes were handled incorrectly by the fontloader
1591 * There was a crash possible with certain types of named PDF
1594 * Math delimiters and large operators in new MATH fonts no
1595 longer apply the italic correction (this fixes placements
1596 of super- and subscripts on such items for those fonts).
1598 * The converter from lua strings to token lists (for the node
1599 interface) sometimes generated invalid tokens.
1601 * CFF (OpenType) fonts now listen to 'embedding="full"'. TTF
1604 * Font tables with 'embedding="no"' would cause luatex to crash.
1606 * \pdfobj file {} failed to find the file if there was no lua
1609 * An optimization in MS Mincho caused luatex to crash.
1611 ==============================================================
1612 Luatex beta-0.43.0 was released 20090819
1613 ==============================================================
1617 * There is a new allowed key in the table trhat is returned
1618 by lua-loaded fonts: <f>.psname. This value should be set
1619 to the original PostScript font name of the font. Fonts inside
1620 dfont and ttc collections are fetched using this field
1621 (if it is missing, <f>.fullname will be used instead).
1623 * It is now possible to use Apple dfont font files
1624 (those that contain at least one outline font).
1626 * \latelua is now allowed inside leaders.
1628 * There is a new callback: process_output_buffer, from Manuel
1629 Pégourié-Gonnard. This callback is called just before
1630 \write acts, so it can be used to alter the file encoding
1631 of text output files.
1633 * There is a new node.dimensions() function, which calculates
1634 the natural size of (part of) a list of nodes.
1636 * The new primitive \gleaders provides 'globally aligned'
1639 * The DVI and PDF backends now share much code internally.
1641 * The embedded MPlib is now 1.207.
1643 * libpng is now 1.2.39.
1647 * We fixed lots of anonymous bugs introduced in 0.42.0 (as expected)
1649 * fontloader.info() errors are no longer fatal, the function now
1650 just returns a nil,"error string" pair.
1652 * Automatically inserted kerns for \accents are now once again
1653 valid word ends, as in \TEX.
1655 * Fixed the placement of math displays in mixed direction
1658 * The \pdfcompresslevel is now dynamic again.
1660 ==============================================================
1661 Luatex beta-0.42.0 was released 20090717
1662 ==============================================================
1664 * There is a new node.tail() function
1666 * lua-loaded fonts now support a 'nomath' key to speed up
1667 loading the lua table.
1669 * A bugfix in the ttf reader for the inclusion backend, and
1670 (also in the backend) support for treating ttc files by
1671 pretending they are single ttf fonts (both patches from pdftex)
1673 * Add Khaled Hosny's man page to the repository
1675 * The \pdfcompresslevel is now effectively fixed as soon as
1676 output to the pdf file has occurred.
1678 * Patched status.filename so that it (nearly) always returns a
1681 * fix '\the\delcode' and disable '\the\odelcode', '\the\Udelcode',
1682 and '\the\Udelcodenum'
1684 * Handle jfifs where either xres or yres is 0 and the other
1685 res is != 0 (from pdftex)
1687 * The single-argument version of lang.hyphenate() was broken.
1689 * Get rid of the \directlua/\latelua number warning.
1691 * The Lua coroutine patch (coco) is now disabled on linux
1692 powerpc architectures (because it caused crashes)
1694 * Removed obsolete pdftex primitives:
1695 \pdfoptionalwaysusepdfpagebox
1696 \pdfoptionpdfinclusionerrorlevel
1700 * The loading speed of large fonts (especially ttf) via the
1701 fontloader library, and the inclusion speed for subsetting
1702 in the backend have both been improved.
1704 * The 'pdf' lua library has been enhanced with various new
1705 functions, see the manual for details.
1707 * BLT and BRT glyph position fixed.
1709 * Various fixes for synctex offsets.
1711 * Support for exotic font string encodings has been removed
1712 from the fontloader library.
1714 * The embedded MPlib is now 1.205.
1716 * libpng is now 1.2.38.
1718 ==============================================================
1719 Luatex beta-0.40.6 was released 20090625
1720 ==============================================================
1722 * Fix two string vs. toks bugs in the lua node interface:
1723 whatsit,annot and whatsit,startlink data assignments were
1724 made directly as strings instead of being converted to tokens.
1726 * Sometimes pdf.print() could be used before the proper structures
1729 * There was a bug in the type codes for the lua package filter
1730 callback: wrong extra info was passed to lua for the alignment
1733 * The math parameters \Umathlimitdownvgap, \Umathlimitdownbgap,
1734 and \Umathlimitdownkern have been renamed to \Umathlimitbelowbgap,
1735 \Umathlimitbelowvgap, and \Umathlimitbelowkern to be more
1736 consistent with the other parameter names.
1738 * The embedded MPlib is now 1.204.
1740 * Handling of UTF-8 hyphenation exceptions has been fixed.
1742 * There were a number of typos in the manual.
1744 ==============================================================
1745 Luatex beta-0.40.5 was released 20090610
1746 ==============================================================
1748 * One of the internal print functions accidentally encoded its
1749 argument string to UTF-8 even though it was already UTF-8.
1751 * Some of the log and terminal UTF-8 output was gibberish.
1753 ==============================================================
1754 Luatex beta-0.40.4 was released 20090609
1755 ==============================================================
1757 * \the\textfont0 returned a number instead of doing a font
1760 * The embedded MPlib is now 1.203.
1762 ==============================================================
1763 Luatex beta-0.40.3 was released 20090608
1764 ==============================================================
1766 * A set of portability fixes for the AIX compiler from Vladimir
1769 * A set of fixes to the synctex support.
1771 * A patch to the build script to prevent installed X11 headers
1772 from being required.
1774 * Some weave (web syntax) fixes from Manuel Pégourié-Gonnard.
1776 * A simplification in luatex.ch (it is now less verbose
1777 about the web2c-specific extensions) from Karl Berry.
1779 * A fix in the handling of UTF-8 (input) file names.
1781 * Hyphenation exceptions were case sensitive in 0.40.2.
1783 * libpng is now 1.2.37.
1785 ==============================================================
1786 Luatex beta-0.40.2 was released 20090603
1787 ==============================================================
1789 * Fix for a compilation warning under Cygwin.
1791 * A complicated bugfix by Hartmut for a rounding problem in the
1792 VF loading that resulted in 'character width mismatch in font
1793 XY.vf ignored' messages at large load sizes
1795 * The embedded MPlib is now 1.202.
1797 * The post_page_number callback was accidentally run when
1798 shipping out xforms as well as during actual pages.
1800 * When a math accent char doesn't have a bot_accent placer,
1801 luatex now uses the top_accent placer, if present.
1803 * A crash caused by \Uroot .. {<list>}{...} is fixed
1805 * A portability fix for solaris 8 sparc using sun studio
1806 compiler, and one for glibc > 2.9.90
1808 * luatex -ini now sets the \catcode of the BOM character to
1811 * Kpathsea is updated from TeXLive, giving four extra types of
1812 searchable files: 'font feature files','cid maps','mlbib',
1815 * libpng is now 1.2.36
1817 ==============================================================
1818 Luatex beta-0.40.1 was released 20090508
1819 ==============================================================
1821 * Vertical placement of root radicals and degrees is fixed.
1823 * The use of \pageleftoffset could deviate from \hoffset
1826 * LuaTeX now issues a warning if \pagedir !- \bodydir during
1829 * The previous crash in font.read_tfm() was still not quite
1832 * The Web2C version is now also printed in the --version
1833 and --credits output.
1836 * There is a new MPlib 1.200 release candidate with a few minor
1839 * The xpdf library is updated to patch level 3.
1841 * New imports to the build system, from texlive. In particular,
1842 there is now configure-level support for building with
1843 libpoppler and support for building under cygwin 1.7 is added.
1845 ==============================================================
1846 Luatex beta-0.40.0 was released 20090422
1847 ==============================================================
1849 * The embedded MPlib is updated to version 1.200.
1851 * Texlua would crash if run font.read_tfm() was used.
1853 * Luatex would crash on empty \patterns.
1855 * Lots of small C code cleanups.
1857 * \textdir inside a \hbox dir *** was wrong earlier.
1859 * 0.39.0 introduced a bug that would make luatex crash whenever
1860 font expansion was used.
1862 * Font tables returned by define_font can now have a key named
1863 'cache' that controls the internal lua font table caching.
1865 * There is no longer a need for an explicit --progname if there
1866 is no input file given.
1868 ==============================================================
1869 Luatex beta-0.39.0 was released 20090415
1870 ==============================================================
1872 * iniluatex will from now on start up with only the TeX82 primitives
1873 and \directlua, everything else has to be bootstrapped via
1874 tex.enableprimitives(). This change was planned for 0.40.0,
1875 but *now* is the time to test it.
1877 * A bugfix for \primitive in various expandable contexts,
1878 and \primitive now generates an error message when the
1879 argument is not actually a primitive's name.
1881 * There was a bug found in the math accent handling.
1883 * Large math operators are now treated like extensible characters
1884 in the sense that they can be composed of segments.
1886 * The extra assign- and restore tracing information from eTeX
1887 had a massive bug because of a dangling else in the pascal web.
1888 As a side-effect of fixing this bugs, all such potential errors
1889 in the pascal web have been fixed (for now).
1891 * The math parameters can now be set and queried from lua code
1892 via the new tex.setmath() and tex.getmath() functions.
1894 * Reflection in a \hbox was broken.
1896 * There was a leak of direction nodes in the paragraph builder.
1898 * The font backend now does a small peek to differentiate
1899 truetype and postscript style opentype fonts. This fixes
1900 the "Can't find CFF table" bug for otf's with truetype outlines.
1902 * Parameters and registers can now also be assinged to globally
1903 from lua (see the manual for details).
1905 * It is now possible to query the current math style while a
1906 formula is still being constructed by using the new read-only
1907 value \mathstyle. Associated is the new command \Ustack that
1908 is to be used as a prefix for {.. \over ..} and friends.
1909 See the manual for more information.
1911 * The embedded MPLib is brought up to date with the current
1912 metapost repository (version 1.110 and a few small patches).
1914 * Luatex can now handle two breakpoints inside a single ligature
1915 (like for the functional word of-f-ice). The solution is not
1916 perfect yet, but the chance of missed hyphenation points in
1917 actual documents should now be negligible.
1919 * Some speedups in the font loading code, and in the handling of
1920 pdf_literal nodes that are set from within Lua code.
1922 * Some source code and manual cleanup, as usual.
1924 ==============================================================
1925 Luatex beta-0.38.0 was released 20090410
1926 ==============================================================
1928 * tex.enableprimitives() had a bug were previously defined (but
1929 currently undefined) control sequences prevented the creation
1932 * The special calling format callback.register('name', false)
1933 not only disables the callback, but also the builtin code it
1934 is supposed to replace.
1936 * Empty \localleftbox and \localrightbox -es are now suppressed.
1938 * Support for <f>.MathConstants.SubscriptShiftDownWithSuperscript
1939 was added, to solve the lack of "sub2" in OpenType math.
1941 * Luatex now supports horizontal super- and subscript placement
1942 corrections via the OpenType MATH mathkern table. See the
1945 * node.write() no longer copies its argument node list before
1948 * There are six new primitives that are verbose forms
1949 of one and two byte special tokens:
1950 \Usuperscript \Usubscript
1951 \Ustartmath \Ustopmath
1952 \Ustartdisplaymath \Ustopdisplaymath
1954 * The attribute node leaks in math mode and alignmetns have been
1957 * The 11 simple math noads are now combined into a single "noad"
1960 * Static linking against libstdc++ is working once again.
1962 * There is a small fix in the keyword scanner to solve the
1963 problem of 'Runaway ... while scanning ???' that could happen
1964 for some primitives.
1966 * Lua now also has the "architecture independent bytecode"
1969 * Lua is updated to version 5.1.4 with coco patches 1.1.5, and
1972 * Some TRT/TLT backend bugs are fixed.
1974 * Various manual updates.
1976 ==============================================================
1977 Luatex beta-0.37.0 was released 20090331
1978 ==============================================================
1980 * Luatex now implements shell_escape = 'p', a new feature
1981 in web2c that intends to make \write18 more secure. As
1982 a side-effect, if luatex is used for typesetting, it will
1983 now also apply shell_escape = 'p' and shell_escape = 'f'
1984 to the lua functions io.popen(), os.execute(), os.exec(),
1986 Nothing has changed for the case where luatex is used as
1987 a script interpreter.
1989 * Attributes can now have negative values. The special value
1990 for 'unset' is lowered to -0x7FFFFFFF (it used to be -1).
1992 * The lua 'kpse' library now has an object-oriented interface
1993 as companion to the procedural interface. This is useful for
1994 e.g. controlling the discovery of mplib files.
1996 * The new internal integer parameter \outputbox allows setting
1997 of the output box number (default: 255, max: 65535)
1999 * The new primitives \Udelimiterunder and \Udelimiterover
2000 complete the set of 'StretchStacks' for OpenType Math.
2002 * Fixed a bug in font string conversions on the Macintosh that
2003 resulted in warnings about 'unaligned pointers being freed'.
2005 * Khaled Hosny spotted a bunch of manual errors.
2007 * There was bug in the width of math_accent objects when
2008 there were super- or subscripts attached to the accentee.
2010 * In PDF mode, TRT \leaders were bugged.
2012 * The source tree now uses the new texlive build system that
2013 Peter Breitenlohner created.
2015 * There is now a single build.sh instead of four separate
2016 ones. It has a few options:
2017 --make : only make, no make distclean; configure
2018 --parallel : make -j 2 -l 3.0
2019 --nostrip : do not strip binary
2020 --mingw : crosscompile for mingw32 from i386-linux
2021 --ppc : crosscompile for ppc osx on intel osx
2023 Note: --parallel still sometimes causes crashes due to
2024 timing errors, so use that option with care.
2026 * Many compiler warnings have been removed (but not all yet).
2028 ==============================================================
2029 Luatex beta-0.36.0 was released 20090323
2030 ==============================================================
2032 * The included fontforge code is stripped considerably, and
2033 the lua table to access the code is renamed to 'fontloader'.
2034 The old name ('fontforge') will remain present for a while,
2035 but will eventually go away.
2037 * New lua functions: tex.primitives(), tex.extraprimitives,
2038 tex.enableprimitives(). This is a prelude to a big change
2039 in the next beta: iniluatex will from now on start up with
2040 only the TeX82 primitives and \directlua, everything else
2041 has to be bootstrapped via tex.enableprimitives().
2042 See the manual for more details.
2044 * Support for multiple lua states has been removed, and at the
2045 same time support for adding name ids to lua chunks has been
2046 added. See the manual for more details.
2048 * More changes to the PDF backend to make it support non-latin
2049 directions (form and image placement, vertical typesetting,
2052 * The kpathsea library is updated. Highlights: cleaner build
2053 process (thanks to Peter Breitenlohner), cleaner mingw32
2054 (cross)compilation support, and a new reentrant API.
2056 * Some possible endless loops within extended delimiters in
2057 math mode are now trapped.
2059 * Movements inside VF font characters were considerably off
2060 due to a wrong conversion routine.
2062 * Error handling for \outer has been reinstated, but can be
2063 suppressed via the new primitive \suppressoutererror.
2065 * The new primitives: \suppresslongerror and \suppressifcsnameerror
2066 that can be used to suppress errors for \par in non-long macros
2067 and for non-expandable objects inside \ifcsname ... \endcsname,
2070 * New lua function: node.vpack() via a patch from Khaled Hosny
2071 that also improves error handling in node.hpack().
2073 * Fix the typo that caused \charic (instead of \charit)
2074 to be defined as a primitive.
2076 * Suppression of hyphenation via \hyphenchar\font=-1 now works
2079 * The lua functions tex.print(), tex.sprint(), tex.write() now
2080 accept an array of strings as well as vararg list of strings
2083 * A change to be build process: luatex.p is no longer split
2084 int smaller pieces before running the C compiler.
2086 * Melissa O'Neill contributed a bugfix to the Type1 font
2089 * A bunch of smaller bugfixes and cleanups (as usual).
2091 ==============================================================
2092 Luatex beta-0.35.0 was released 20090224
2093 ==============================================================
2095 * The math handling portions of LuaTeX are converted to C code,
2096 and extended to support Unicode math. There are a great many
2097 related changes, see the new Math chapter in the manual for
2100 * A nasty bug in the paragraph breaking routine was fixed.
2101 (All lines except the first one were believed to be wider then
2102 they really were. This affected which nodes were considered
2103 as active breakpoints)
2105 * Various changes to the PDF backend to make it support non-latin
2108 * Fixed the behaviour of the page offsets. Placement of the output
2109 on the physical page should now work correctly in all directions,
2110 both in DVI and PDF.
2111 There now are \pageleftoffset and \pagetopoffset primitives,
2114 * fontforge.apply_featurefile() was broken since 0.31.0
2116 * The lua profiler library is added.
2118 * The included lua filesystem library is now 1.4.1.
2120 * Reading of pk files fixed.
2122 * An optional space afer a <direction specifier> for \textdir c.s.
2123 is ignored from now on.
2125 * \bodydir and \pagedir can now be (re)set even after the first
2126 page has been output.
2128 * The new callback mlist_to_hlist can be used to intercept the
2129 normal conversion of math lists to horizontal lists.
2131 * The programs ttf2afm and pdftosrc are removed from the luatex
2132 distribution (these belong to pdftex).
2134 * fontforge.open() now uses much less memory when opening large
2137 * The included libpng is now 1.2.35.
2139 * Quite a lot of smaller bugfixes and cleanups (as usual).
2142 ==============================================================
2143 Luatex beta-0.31.3 was released 20081229
2144 ==============================================================
2146 This release has a bunch of updates from the development trunk
2147 (#1657-1670,1677,1678,1680,1685,1687).
2149 * Closing of files opened by \externalocp.
2151 * Fix for a locale-related bug that make PDF generation fail
2152 with a "Parsing CFF Dict failed" message when including
2155 * The included metapost is now version 1.102.
2157 * PDF rules in vertical modes in RL direction where output
2158 in the wrong direction
2160 * Fix for a crash on Apple fonts that contain a 'bsln' table.
2162 * The handling of the second argument to fontforge.open() was
2165 * The included libpng is now 1.2.34
2167 * Handling of ttc files on Windows was broken
2170 ==============================================================
2171 Luatex beta-0.31.2 was released 20081209
2172 ==============================================================
2174 Besides fixing building issues, this release has
2176 * A small fix for a crash that could happen when using
2179 * A fix in the format of fontforge.to_table output.
2180 (In 0.31.1 <font>.lookups was near-empty; the lookups
2181 were accidentally output as part of the gpos table).
2183 ==============================================================
2184 Luatex beta-0.31.1 was released 20081209
2185 ==============================================================
2187 fixed a bunch of compilation errors on various platforms, but
2188 with no other visible changes.
2191 ==============================================================
2192 Luatex beta-0.31.0 was released 20081205
2193 ==============================================================
2195 This is just an intermediate release so that some testing can be
2196 done on the updated fontforge embedding.
2198 * There are new fields being generated by fontforge.to_table(),
2199 and one or two old ones have been removed. These fields are /
2200 will be documented in the manual, but very briefly:
2202 - MATH table and associated information are now exported
2203 (the main reason for the new fontforge code)
2204 - Baseline data is now exported
2205 (perhaps usable in lua code)
2206 - Multiple Master / Glyph variation data is now exported
2207 (but useless, for now)
2208 - Mac Feature (AAT) information is now exported
2209 (perhaps usable in lua code)
2210 - If (lookup) names were saved via the PfED table, these
2211 will the exported instead of the default, generated names.
2212 (as requested by Yannis)
2214 * dfont is now treated as an archive format just like ttc
2215 when it comes to fontforge.info(). NOTE: that does not mean you
2216 can actually use them, because the backend doesn't know
2217 yet how to embed dfont fonts in the PDF, that is on the
2218 TODO list for the next big beta (0.40.0).
2220 * The executables are a lot larger than before. That is because
2221 much more of fontforge is included than before. Likely this
2222 will stay this way, because this makes upgrading the ff code
2223 much easier, and it means that luatex/FF potentially
2224 understands more font formats (after upgrading the backend,
2228 ==============================================================
2229 Luatex beta-0.30.3 was released 20081128
2230 ==============================================================
2232 This release fixes a really big bug, a few smaller ones,
2233 and has updates of png and mplib:
2235 * All hyphenation patterns that were anchored at the start or
2236 end of a word were ignored in luatex versions 0.25.X and 0.30.X
2237 (and possibly even earlier).
2239 * Repeated use of \language=-1 could result in "There is not room
2240 for another language".
2242 * The lua true coroutines patch (Coco) is now disabled on OpenBSD
2243 running on non-intel platforms.
2245 * The lua socket library is patched so that it will now compile on
2248 * Luatex now has libpng 1.2.33 and mplib 1.100
2250 ==============================================================
2251 Luatex beta-0.30.2 was released 20081020
2252 ==============================================================
2254 * The Lua coco change from 0.30.1 is reverted as it gave
2255 trouble on MacOSX. Lua coco on non-intel OpenBSD platforms
2256 is now explicitly turned off.
2258 * The lua file reading speedup in 0.30.1 broke reading of
2259 files larger than 100MB.
2261 * Reading of font-related files was broken when there was a find
2262 callback, but no read callback.
2264 * The texmf.cnf array size setup values were ignored whenever
2265 --lua was given on the commandline (instead of only when
2266 texconfig.kpse_init is set to false).
2268 * glyphs with negative widths resulted in incorrect horizontal
2269 placement (overlapping) of the string in the output PDF.
2271 * Using \latelua could sometimes result in an invalid output PDF,
2272 and the argument token list was expanded too early
2274 * There was a read buffer overrun in the mapfile parser
2276 * There are two new variables in the status table:
2277 status.callbacks and status.indirect_callbacks (execution counts).
2279 ==============================================================
2280 Luatex beta-0.30.1 was released 20081009
2281 ==============================================================
2283 * Invalid return values from the linebreak_filter callback
2284 are now handled gracefully (was crashing)
2285 * a preinstalled ctangle is no longer needed except when
2287 * In 0.30.0, the .notdef fix was incorrectly applied to
2288 truetype / opentype fonts.
2289 * A bunch of all memory leaks is fixed
2290 * In lua, f:read('*a') now uses signicantly less memory
2291 * The number of \catcodetables is now limited to 64KB
2293 * Luatex could crash if there were PDF images with and
2294 without page /Group included on the same page
2295 * Lua coco now always uses setjmp (for OpenBSD compatibility)
2296 * The embedded mplib is updated to the latest svn version
2297 * # marks (characters with catcode 6) are no longer doubled
2299 * Handling the nul character (U+0000) with catcode 13
2301 * Luatex could crash on win32 with an access violation
2302 because there was one predefined language too few
2303 (the one matching \language=-1)
2305 ==============================================================
2306 Luatex beta-0.30.0 was released 20080930
2307 ==============================================================
2311 * Readable \tex internal params that are counts, attrs, or dimens are
2312 now returned as numbers instead of strings, and skips as node objects.
2313 Read-write access to tex's skip registers added: tex.skip[0] etc.
2314 * new callback: 'linebreak_callback' to replace the internal paragraph
2316 * the tex table now supports more readable 'convert' values:
2317 tex.fontname, tex.pdffontname, tex.pdffontobjnum, tex.pdffontsize,
2318 tex.uniformdeviate, tex.number, tex.romannumeral, tex.pdfpageref,
2319 tex.pdfxformname (each takes a number as argument)
2320 * new readable parameter: tex.fontidentifier(number) returns the
2321 \csname associated with that font id
2322 * luatex now outputs \FONT<nr> instead of \^^@ in Overfull/Underfull
2323 messages if the font's id text is zero (like for expanded fonts) (#77)
2324 * luatex --version is split into --version and --credits
2325 * There is now (again) an svn revision number in luatex --version (#91)
2326 * Add support for more read-only internal access from lua:
2327 tex.lastpenalty, tex.lastkern, tex.lastskip, tex.lastnodetype,
2328 tex.inputlineno, tex.badness, tex.pdftexversion, tex.pdflastobj,
2329 tex.pdflastxform, tex.pdflastximage, tex.pdflastximagepages,
2330 tex.pdflastannot, tex.pdflastxpos, tex.pdflastypos, tex.pdfrandomseed,
2331 tex.pdflastlink, tex.luatexversion, tex.Alephversion,
2332 tex.Omegaversion, tex.Alephminorversion, tex.Omegaminorversion,
2333 tex.eTeXminorversion, tex.eTeXversion, tex.currentgrouplevel,
2334 tex.currentgrouptype, tex.currentiflevel, tex.currentiftype,
2335 tex.currentifbranch, tex.pdflastximagecolordepth (#81)
2336 * the old --src-specials are replaced by --synctex (#63)
2337 * the \expanded primitive is backported from pdftex 1.50 (#43)
2338 * luatex now comes with libpng 1.2.32
2339 * experimental: tex.definefont(string, number) associates a
2340 csname string with a font id number
2342 Bugs fixed compared to 0.29.0:
2344 * dashes were exported wrongly by MPlib
2345 * multi-item \discretionaries were broken in various ways (#78, mailinglist)
2346 * read_font_info was sometimes called recursively from lua-loaded
2348 * do_vf was sometimes called on lua-loaded fonts that where
2349 already known to be virtual
2350 * trailing junk in tfm files is now ignored (needed for ecrm fonts)
2351 * pdf_ignored_dimen was initialized too late, breaking \prevdepth
2352 handling and causing output lines to overlap eachother (#72)
2353 * pdf.immediateobj() had a printf-related bug
2354 * the fontname terminal logging is fixed for strange font file names
2355 * lua tex array assignments now listen to the globaldefs setting
2356 (tex.count[0] etc) (#92,partial)
2357 * \parshape was broken (#70)
2358 * there is no longer a ".tex" extension forced on very input file (#74)
2359 * eof() for mapfiles was true one byte too soon (#76)
2360 * out of range \lefthyphenmin and \righthyphenmin settings now actually
2361 disable hyphenation (#90)
2362 * tex.unset_attribute() looked too far ahead when a to-be-unset
2363 attribute id not only did not exist in the node, but was also
2364 higher than the highest set attribute on the node. (#65)
2365 * the parameters attr and page_name of read_image() were swapped
2366 (this broke \pdfimage with attributes)
2367 * tex filenames with spaces in them on the command line are now
2369 * sometimes pfb fonts were included multiple times without valid
2371 * some parts of the pdftex 1.40.9 PNG transparancy hack were still
2372 present and caused transparant png handling to fail
2373 * \localinterlinepenalty and \localbrokenpenalty were broken
2374 * special case catcode tables are now handled better (#23)
2375 * the handling of missing .notdef charstrings in old pfb fonts
2378 ==============================================================
2379 Luatex beta-0.29.0 was released 20080718
2380 ==============================================================
2385 * The embedded pdftex is now 1.40.9 (forthcoming) except for the
2387 - the png transparancy fix is skipped because it is in conflict
2388 with a macro-based solution offered by context mkiv.
2389 - LFS (PDF files > 2GiB) is not working yet.
2390 - Synctex is still missing
2392 * libpng, xpdf, and zlib are updated to their pdftex 1.0.9 levels
2394 * MPlib is updated to 1.090
2396 * The syntax of buildpage_filter is changed to avoid confusion
2397 (and crashes). See the manual for the new calling convention.
2399 Bugs fixed compared to 0.28.0:
2401 * The previous bugfix for \languages skipping numbers was wrong.
2403 * Various compile-time warnings are suppressed
2405 * \pdfsetmatrix was broken
2407 * \pdfsave and \pdfrestore were broken
2409 * Valid user_defined whatsits nevertheless were generating errors.
2412 ==============================================================
2413 Luatex beta-0.28.0 was released 20080630
2414 ==============================================================
2416 There is one new feature:
2418 There is now experimental support for non-trivial discretionaries
2419 following explicit hyphens. In analogy to \prehyphenchar and
2420 \posthyphenchar, there are two new parameters \preexhyphenchar en
2421 \postexhyphenchar. Both new parameters default to zero (nothing).
2422 When set to a nonzero value, the parameter is added to either the
2423 pre- or post- break text. Note that this is *in addition to* the
2424 hyphen already in the input. Testing and comments are very welcome.
2426 Here is a short example (no idea what is says):
2430 \postexhyphenchar=`-
2432 pudesse t\^e-lo mantido como amigo, mas por
2433 mais bem-intencionado que eu fosse, n\~ao
2439 Bugs fixed compared to 0.27.0:
2441 * Words that started off with a character with a zero \lccode
2442 were never hyphenated at all.
2444 * There was a bug in the new active characters code that prevented
2445 the latex format from being built (with Invalid character error).
2447 * There is a temporary fix for the sometimes appearing "Font has a
2448 bad FontBB" message from Acrobat.
2450 * \leaders did not actually stretch enough (the last bit of glue
2451 that has to line up the line endings was never output to the PDF).
2453 * Bad paragraph-related callbacks could result in luatex crashing.
2455 * The pre_linebreak and post_linebreak filters were never called
2456 when \output was active (this was a leftover of a superceded
2459 * 'skipping' language codes when setting up \patterns c.s. did not
2460 work (it used the next empty slot instead of the actual value of
2463 * Using multiple 'attr' keywords on box items could cause random
2466 * Calling lang.hyphenate() with one argument (without specifying a
2467 tail node) could crash.
2469 * The luatex pdf banner and version reporting is cleaned up a bit.
2471 * Conflicting patterns inside \patterns now give an error:
2472 ! Conflicting pattern ignored.
2473 (duplicate identical patterns are ignored without error).
2475 ==============================================================
2476 Luatex beta-0.27.0 was released 20080624
2477 ==============================================================
2479 Bugs fixed compared to 0.25.3:
2481 * Unicode reencoding support for non-standard (i.e. older)
2482 Type1 fonts is now somewhat less broken than it was (#25)
2484 * .vf fonts using specials crashed luatex
2486 * luatex would crash on --\par (#33)
2488 * An attempt is made to get a sane default value for StemV in
2489 the created pdf (#32)
2491 * We can now guarantee that %PDF-1.* header is printed before
2492 the first pdf.print() output
2494 * lang.hyphenate() was broken
2496 * insert_before(a,a,b) was broken (#37)
2498 * argv[0] is now cleaned up before being used as a default for
2499 mem_name and prog_name (#28).
2501 * luatex would crash on loading extended fonts (fonts loaded
2502 via lua callbacks) from a format file.
2504 * The fix for pdftex bug #799 is backported from pdftex 1.40.4.
2506 * slnunicode had a bug in the unicode.utf8.gmatch iterator.
2508 * Queries of nonexisting fontdimens could cause a crash.
2510 * luatex would crash on {\textdir TLT\pardir TLT x\break\par }
2512 * Fixed wrong placement of lines in mixed-direction paragraphs
2513 that could happen in some situations.
2516 * Luatex now includes luasocket (#35)
2517 See http://www.tecgraf.puc-rio.br/~diego/professional/luasocket/
2519 There is a new commandline option: --nosocket to disable this,
2520 and that is also implied by --safer.
2522 NOTE to the binary builders: there are some unfixed configure
2523 problems when you need to add a specific library to get socket
2524 support on your platform. You probably will have to edit the
2525 generated Makefile by hand (search for 'socketlib').
2527 * There is ongoing development to the 'img' and 'mplib' libraries.
2528 See the reference manual for details.
2530 * The 'character commands' in virtual fonts now support image
2531 inclusion. See the reference manual for details.
2533 * Lua error messages now include the call stack.
2535 * \directlua and \latelua have been extended to accept a 'name'
2536 keyword. The argument is a token list that is used as the lua
2537 name of this chunk in lua error messages and call stack prints.
2540 * The lua chunk names can be interfaced via a new virtual
2541 table called lua.instancename, the values in that function as
2542 defaults in the absence of 'name' keywords.
2544 * The 2-plane limit on active character range is removed (#12).
2546 * Subsetted TTF fonts in the PDF now retain the cmap table.
2548 * There is a new Lua variable os.selfdir. This contains the
2549 full absolute pathname of the directory that the executable
2550 resides in (with symlinks resolved)
2552 * There is a new function os.uname() this returns a lua
2553 table containing various platform information items.
2555 * The node library now uses text strings for direction specifiers
2556 instead of numbers. See the reference manual for details.
2558 * The 'E' (edit) as error response functionality is now a noop.
2560 * Adding luatex 0.25.3 to texlive resulted in a few minor backports,
2561 in particular: Support for mktexfmt is added, and luatangle now
2562 identifies itself as such (instead of calling itself otangle).
2564 * We fixed a whole series of portability problems (but
2565 we probably introduced new problems as well).
2567 * Most (all?) files now have a corrected Copyright header,
2568 and link in $Id$ and $URL$ into the object file.
2570 * Some unnecessary files were removed from the distribution.
2572 ==============================================================
2573 Luatex beta-0.25.3 was released 20080418
2574 ==============================================================
2577 * Pdftex bug no. 936 (sarovar) regarding vertical
2578 positioning of embedded PDF files if depth parameter is given.
2579 * Luatex gave bogus lua return values for the tex.wd/hd/dp
2580 values of void boxes
2581 * A few bugfixes in mplib (square pens caused hangs, elliptical
2582 pens caused confused output)
2583 * Hyphenation of uppercase words (\uchyph) was broken
2584 * Output image placements corrected for all 8 transform cases
2585 also when artbox etc. is used
2586 * There were missing maketexstring() calls in error messages
2587 * Math display contents were sometimes prematurely freed during
2588 the placement of the equation number
2589 * Setting \language=-1 could cause crashes due to an array
2590 index going out-of-bounds
2593 * build.sh.ppc is added to the source distribution. This is a
2594 script that crosscompiles osx ppc binaries from osx intel
2595 * tex.box[<chardef name>] is now supported (but still experimental)
2596 * a bunch of compiler warnings are removed
2597 * The fontforge library now dump AAT feature tags as and
2599 * The new function font.nextid() predicts the next assigned font id
2600 * Some source code changes are backported from texlive
2602 ==============================================================
2603 Luatex beta-0.25.2 was released 20080410
2604 ==============================================================
2606 * Updated to MPlib 0.40
2607 * Bugfixes and cleanup in the lua img table code
2608 * Fix \pdflastximagepages bug from pdftex
2609 * Fix for very large tex.print strings
2610 * Update to Lpeg 0.8.1
2611 * &D Bugfix for Type1 fonts when out-of-range characters
2612 are marked as 'used'
2614 ==============================================================
2615 Luatex beta-0.25.1 was released 20080321
2616 ==============================================================
2618 * Updated to MPlib 0.30 (that is now becoming usable)
2619 * The build requirement for a pre-installed ctangle is gone
2622 ==============================================================
2623 Luatex beta-0.25.0 was released 20080311
2624 ==============================================================
2629 This version features an embedded MP interpreter whose output
2630 can be directly accessed from lua code (mplib), without calls
2631 to an external "mpost" command. Of course it has bugs and
2632 limitations (makempx does not work, for example) but keep in
2633 mind that it is only an initial attempt.
2634 See the manual for more details.
2636 ** img.immediatewrite() is added
2637 ** images now accept a 'transform' key
2638 ** widths etc. can now be given as width="100mm"
2642 * \parshape handling was completely broken since 0.20.0+
2643 * when \pdfprotrudechars was in effect, an assertion failure
2644 could happen when embedded \hboxes in the paragraph appeared
2645 at the end of a line.
2646 * import of otf fonts with contextual lookups has been debugged,
2647 thanks to a patch by GW himself.
2648 * compiling with gcc 4.2.3 is now supported
2649 * if you want to build from source, you need a pre-installed ctangle.
2652 ==============================================================
2653 Luatex beta-0.22.1 was released 20080227
2654 ==============================================================
2656 * The macnames.c source file for building ttf2afm is restored.
2657 * "make depend" in luatexdir now works again
2658 * luatex sometimes crashed because it attempted to expand an
2659 already expanded font
2660 * luatex aborted when --progname was given but no format name.
2661 It now sets the format name to the given progname in that case
2662 * sometimes paragraphs with near-empty lines could cause a crash
2663 * img.supportedtypes() had a bug causing it to crash
2664 * img.supportedtypes() has been renamed to img.types for consistency
2665 * img.boxes() added, returns strings representing bounding boxes
2666 * img.node() added, returns a whatsit node cf. \pdfrefximage
2667 * node.write() now accepts multiple arguments
2668 * the program_name_set switch was not set automatically from C,
2669 causing errors unless lua code called kpse.set_program_name()
2671 * kpse.set_program_name() can now be called more than once
2673 * os.spawn{...} and os.exec{...} could cause crashes because of
2674 a memory allocation error
2676 ==============================================================
2677 Luatex beta-0.22.0 was released 20080215
2678 ==============================================================
2680 * We now have an official bug tracker: http://tracker.luatex.org
2681 * A new lua library (img) is added that allows a direct
2682 interface to the image handling of luatex. You can use this
2683 to include images from lua code instead of via the more
2684 traditional \pdfximage cs. See the manual.
2685 * An optional equal sign after \{pre,post}hyphenchar is now
2687 * os.exec() has been extended, and os.spawn() added. These
2688 functions have support for quoted strings, and they
2689 also accept a table with preseparated command arguments.
2690 * New string constants os.type and os.name are provided.
2691 * node.last_node() is added. This pops and returns the last
2692 node from luatex's 'current list'
2693 * node.write() is added. This appends a node to the end of
2694 luatex's 'current list' (experimental).
2695 * The strict check on unicode compliance in pattern files
2696 is dropped. Patterns files still have to be in proper UTF-8
2697 encoding, but the error for non-Unicode character values
2698 (like 0 - 31 and 127 - 159) is dropped.
2699 * \pdfadjustinterwordglue, \prependkern, \appendkern
2700 and associated \XXXXcode arrays are gone.
2701 * The rest of the pdftex font arrays are now merged into
2702 the new luatex font data structure. This means that you
2703 can now set up font expansion from lua code, and that a few
2704 font-related limits are gone.
2705 * The 'top_skip' field in 'insert' nodes is renamed to 'spec',
2706 for improved consistency.
2707 * kpse.show_path() added. This behaves just like
2708 $ kpsewhich --show-path
2709 * The unicode.utf8 functions now also accept values in the range
2710 1.114.112 - 1.114.367 that is used by LUATEX for raw byte output.
2714 * Better node memory (de)allocation error tracking and messages
2715 * Compilation on MacOSX 10.5 was broken
2716 * There was a bug in node.insert_after
2717 * Use of \{pre,post}hyphenchar was broken
2718 * lfs.permissions was leaking memory
2719 * Some warning and error messages are improved a bit
2720 * A set of bugs in character protrusion, this seems to be working
2722 * Also, a set of bugs in font expansion. This now works in most
2723 cases but is not quite bugfree yet (problematic files for testing
2725 * The functions in the kpse library would crash luatex if
2726 kpse.set_program_name() was not yet called. gives an error now.
2727 * Alignments with spanned columns could cause crashes
2728 * A patch is added for problems with filename parsing on the
2729 "first input line" (by Jonathan Kew)
2730 * The hpack_filter and vpack_filter were only called for lists longer
2732 * Luatex is now more forgiving about font subsets being smaller
2733 than their expected size (issues a warning instead of aborts now)
2734 * A "double-free ignored" error for paragraphs with lines starting
2735 with discarded items was fixed.
2737 ==============================================================
2738 Luatex beta-0.20.2 was released 20071217
2739 ==============================================================
2741 * some portability fixes to the build scripts
2742 * a fix for multi-\span in alignments causing unbreakable
2744 * manual improvements from Jonathan Sauer
2745 * fix for undefined csnames in \directlua if
2746 web2c's hash_extra is nonzero
2747 * fix for LR text inside of a RL document
2748 * fix for open_read_file callback not being called
2749 unless find_read_file was also registered
2750 * removed the ocp status message when \ocps are not
2752 * "unicodeenc" in the fontforge to_table renamed to
2753 "unicode" for improved consistency
2755 ==============================================================
2756 Luatex beta-0.20.1 was released 20071207
2757 ==============================================================
2759 * texlua was broken on Solaris because the some C header
2760 files were loaded in the wrong order.
2761 * os.tmpdir() now accepts an argument, making it easier
2762 to use. It now generates more unique filenames when
2763 it is called repeatedly in one run.
2764 * The --luaconly commandline switch is now documented
2766 * The new extended hyphenation exceptions were severely
2768 * \pdfprotrudechars could cause luatex to abort with an
2770 * There was a bug in the \span code that could cause endless
2772 * The simple forms of \leaders were messed up on windows
2773 because a variable was not properly initialized.
2774 * Non-grouped \textdir commands created invalid output.
2775 * e-TeX's pseudo files were not closed properly in ini mode.
2776 * The luatex.web now weaves properly again.
2777 * I made some small improvements to the manual.
2779 ==============================================================
2780 Luatex beta-0.20.0 was released 20071205
2781 ==============================================================
2783 News compared to the last beta (0.11.2) is as follows:
2785 * Completely overhauled hyphenation and ligkern application,
2786 including the addition of a new "lang" table in lua to
2787 interface to the language parameters, some extra functions
2788 in the "node" table, and a few extra callbacks ("hyphenate",
2789 "ligaturing", "kerning", "post_linebreak_filter").
2791 There is a new chapter in the manual to document all the
2792 changes to the hyphenation and line breaking algorithms,
2793 it is simply too much to list here.
2795 * the interface of the pre_linebreak_filter,hpack_filter,
2796 vpack_filter, and pre_output_filter has changed slightly.
2798 * boxes can now get explicit attributes different from the
2799 currently active set, using a syntax like
2801 \hbox attr2=12 attr3=-1 to 12pt {Hi!}
2803 * lpeg is now at version 0.7
2805 * a whole series of exotic bugs and compiler warnings are
2806 fixed, mostly thanks to the watchful eye of Fabrice.
2808 * texio.print now accepts multiple strings as arguments.
2810 * the lua functions os.sleep(), os.times(), os.gettimeofday()
2811 and os.tmpdir() have been added.
2813 * lua now comes with the coroutine (coco) patches from the
2814 luajit project applied.
2816 * the banner line no longer claims to be TeX.
2818 * a bunch of bugs reported on the mailing list have been
2819 fixed (I hope all of them).
2821 * (internal) we found lots of small ways to speed up lua
2824 * (internal) the node (de)allocation functions have been
2825 rewritten, so that absolutely all nodes now have a type,
2826 even the ones with variable sizes.
2829 ==============================================================
2830 Luatex snapshot-20071029 was released 20071029
2831 ==============================================================
2833 * Completely overhauled hyphenation and ligkern application.
2835 There is a new chapter in the manual to document all the
2836 changes to the hyphenation and line breaking algorithms,
2837 it is simply too much to list here.
2839 * the interface of the pre_linebreak_filter,hpack_filter,
2840 vpack_filter, and pre_output_filter has changed slightly.
2842 * lpeg is now at version 0.7
2844 * a whole series of exotic bugs and compiler warnings are
2845 fixed thanks to the watchful eye of Fabrice.
2847 * texio.print now accepts multiple strings as arguments.
2849 * The lua function os.sleep() is added
2851 ==============================================================
2852 Luatex beta-0.11.2 was released 20070918
2853 ==============================================================
2855 * Pdf inclusion and subsetting of CID-based opentype fonts
2856 now works as it should.
2858 ==============================================================
2859 Luatex beta-0.11.1 was released 20070918
2860 ==============================================================
2862 A quick list of what is new and fixed since beta 0.10.2:
2865 * pfb+afm fonts can now be used in 'wide' (encodingbytes=2) mode
2866 * searching in PDFS using 'wide' fonts now works reasonably well
2867 (based on the tounicode feature)
2868 * related to that, tounicode information can now be passed
2869 on inside the font metrics table
2870 * font subsetting is now supported for CID-based OpenType fonts
2871 (however, there is a known bug with KpozMinProVI-Regular.otf)
2872 * fontforge's warning and error messages are now intercepted
2873 and passed on to the lua code as a second return value of
2874 the fontforge.open() function
2875 * the new primitive \suppressfontnotfounderror can suppress
2876 the TeX error for "Font not found"
2877 * The lua function font.current can now be used to set TeX's
2881 * set_attribute(-1) is now the same as unset_attribute()
2882 * OpenType lookups with glyph classes would crash luatex
2883 * luazlib would not compile on debian (fix from Norbert)
2884 * CID-based fonts would crash luatex
2885 * Bare CFF should be read in binary mode (fix from Akira)
2886 * VF processing did not process packets containing zero bytes properly
2887 * the truetype collection (.ttc) handling is fixed, so that all
2888 of the fonts inside a collection can now be used reliably
2889 * application segfaults and stack overflows are intercepted
2890 so that luatex can quit a bit more gracefully
2891 * an assertion failuer on systems with signed chars (linux-powerpc)
2893 * a crash on AMD64 linux was fixed
2894 * the lua "pdf" table code was wrong
2895 * \ifcsname did not work properly for UTF-8 characters
2896 * Use of the math-related functions using make_fraction (like \atop)
2898 * \handling of \if\noexpand was wrong
2899 * applied a patch that cleans up XForm and page calculations
2900 * "autoconf" support from zziplib is stripped
2902 ==============================================================
2903 Luatex beta-0.10.2 was released 20070814
2904 ==============================================================
2908 * the primitive \span was completely broken
2909 * \pdfexpandfont (font expansion) misbehaved if it was used more
2911 * virtual fonts: sometimes they used the wrong internal font id,
2912 loading vf fonts via fonts.read_vf() was impossible, and sometimes
2913 virtual fonts created segfaults
2914 * while dumping formats, the last font parameter for each font was not
2916 * zziplib was always compiled with pre-installed zlib headers, instead
2917 of the ones in the build tree
2918 * lua 5.1.2 has trouble quoting ^Z characters etc, the tentative patch
2919 for lua 5.2 from Luiz fixes that, hopefully
2920 * fontforge.font('font.pfb') now properly parses AFM boundingboxes
2921 * non-existing files in the argument for fontforge.open() or
2922 fontforge.info() could cause segfaults, now it generates an error
2924 * fontforge.open() did not return character widths for vertical fonts
2926 * on Windows, fontforge believed that ttc files (TrueType Collections)
2927 were actually directories. ttc processing is still not 100% correct,
2928 but it is getting better
2929 * the build system used explicit 'make' sometimes
2930 * the auto-growing string pool was not used everywhere
2931 * there were some typos in the documentation parts of the pascal web
2932 * use of \parshape could easily exhaust all available memory
2937 * support for applying Adobe Feature files (.fea) and Adobe Font
2938 Metrics (.afm) is added to the fontforge library
2939 * fontforge.info() will now return an array of tables for the contents
2941 * support for a 'texluac' personality was added, to replace the 'luac'
2942 command from the official Lua distribution
2944 ==============================================================
2945 Luatex beta-0.10.1 was released 20070719
2946 ==============================================================
2948 This was a hotfix because beta-0.10.0 was completely broken.
2950 ==============================================================
2951 Luatex beta-0.10.0 was released 20070718
2952 ==============================================================
2954 The latest version of the manual is included in the package, and I
2955 am not going to repeat all of that. There were some minor changes
2956 compared to the previous snapshot, but mostly just bugfixes and
2957 documentation improvements.
2959 ==============================================================
2960 Luatex snapshot-20070626 was released 20070626
2961 ==============================================================
2963 * Integrated the lua library lzlib, this defines tables with
2964 bindings for zlib (including eazy-to-use gzip support)
2965 * Updated to slnunicode version 1.1
2966 * Some small cleanups in the sparse array handling
2967 * Moved the raw byte support out of the valid unicode range
2968 * Fixed a bug in the OFM font reader
2969 * Removed the pdftex snap nodes (and associated primitives)
2972 ==============================================================
2973 Luatex snapshot-20070622 was released 20070622
2974 ==============================================================
2976 Not a lot of news, but it fixes a few important bugs in the lua
2977 node processing. Also a few utility functions are added:
2980 rounds and bounds checks a lua number to make sure it is
2981 a valid tex integer.
2983 multiplies a number (or the numeric values in a table)
2984 with a fixed quantity, and calls tex.round() on the result.
2986 Test if a node has a specified field name
2988 removes a node from a nodelist, while keeping the list intact
2989 * node.insert_before()
2990 inserts a new node into a nodelist, just before a specified
2992 * node.insert_before()
2993 inserts a new node into a nodelist, just after a specified
2996 packages a nodelist into a hlist node
2999 ==============================================================
3000 Luatex snapshot-20070619 was released 20070619
3001 ==============================================================
3003 * The lua node processing interface is completely reworked.
3004 It is now completely based on userdata, and uses a new lua table
3005 called 'node' to hold the methods. More detailed information
3006 is in the manual (of course).
3008 * There is a fifth node processing callback:
3010 this is executed just before the packaging of \box 255.
3012 * The hpack_filter and pre_linebreak_filter callbacks now
3013 receive an extra argument indicating the number of top-level
3014 glyphs in the node list.
3016 * Virtual fonts can now contain a 'node' key in the glyph
3017 commands: the value should be a hlist node (i.e.: a horizontal
3018 box), and that will then be output for each character access
3021 * A new set of registers is added, called \attribute. These are
3022 values that will be automatically attached to nodes created in
3023 their scope. More information in the manual.
3025 * Direct read/write access to TeX's box registers is addded to
3026 the lua 'tex' table.
3028 * TeX's main memory now grows dynamically, and the (de)allocation
3029 routines have been rewritten completely.
3031 * The 'kpse' table is extended with extra interface functions, to
3032 allow texlua to be used as a scripting engine.
3034 * The \pdftexversion command now returns 200, not 140.
3036 * The displayed banner and --version screens are cleaned up.
3038 * The format file is now RLE compressed. Not as small as before,
3039 but unpacking is much faster.
3042 ==============================================================
3043 Luatex snapshot-20070426 was released 20070426
3044 ==============================================================
3046 This past month I have been busy with nodes and lists of nodes,
3047 so the big new feature in this release is that there are four
3048 callbacks that operate on node lists:
3051 pre_linebreak_filter
3055 The preliminary documentation for these is in the manual, but the basic
3056 idea is that you can filter a node list just before LuaTeX starts doing
3057 something with it (like line breaking). This functionality is not stable
3058 yet: the node presentation of the various node types is pretty much OK
3059 now, but keep in mind the following:
3061 * math noads and math typesetting are not handled at all (yet)
3062 * not all hpacks and vpacks are intercepted (yet)
3063 * the nested node list handling will probably change
3064 * A conversion tool for nodes to/from dictionaries is planned,
3067 The other changes in this snapshot are various bugfixes (for builds
3068 on various platforms as well as font issues) and speedups (in the
3069 execution of callbacks and the creation of lua font representations).
3072 ==============================================================
3073 Luatex snapshot-20070322 was released 20070322
3074 ==============================================================
3076 * I have changed the token_filter callback quite rigorously,
3077 mostly because of speed issues. The raw speed of trivial
3078 lua token handling is now only about 20 times slower than
3079 the native handling. Not bad at all, considering it has to move
3080 between interpreted and compiled code for each and every
3081 token. If you do not run the token filter inside \output,
3082 the effective run speed difference should not be much more
3085 Two big differences: you have to call token.get_next()
3086 yourself, and the token table is now a three-item array
3087 instead of a five-key hash. The minimal example changes to
3090 callback.register('token_filter', function ()
3091 return token.get_next()
3095 more details are in the manual.
3097 * I've fixed a few bugs in the handling of Opentype TTF, and added
3098 a new key in the font definition table:
3100 f.encodingbytes = (1|2)
3102 The default is 2 for opentype and truetype format, 1 otherwise.
3103 Later on, it will become possible to have a type1 font in 2-byte
3104 (CID) encoding or a truetype font in traditional encoding (1-byte),
3105 but I have not covered all cases yet.
3109 ==============================================================
3110 Luatex snapshot-20070309 was released 20070309
3111 ==============================================================
3113 * The OCP debug information is removed again.
3115 * There is a new callback that I am quite excited about myself:
3119 A bit of text from the reference manual:
3120 --------------------
3121 This callback allows you to change the modify any lexical token that
3122 enters the \type{main_control} function before \LUATEX\ executes the
3125 Note: not all tokens can be intercepted yet, only those that are `seen'
3126 by \LUATEX's main control function. Supplemental tokens like the bodies
3127 of macro definitions and the right-hand side of register assignments
3128 are not seen. For now, this is intentional.
3131 function (table <token>)
3132 return table <token>
3136 Calling convention for this callback is bit more complicated then for
3137 most other callbacks. Initially, lua function will be called with the
3138 next token from \type{get_next()} as argument, represented as a small
3139 lua table. The function should either return a lua table representing
3140 a valid to-be-processed token, or something else like nil or an empty
3143 If your lua function does not return a table representing a valid
3144 token, it will be immediately called again with yet another token
3145 from \type{get_next()} as argument, until it eventually does return
3148 But if the function does return a usable token, then that token will
3149 be processed by \LUATEX. Afterwards, the function will be called
3150 again, but now without an argument. This is repeated until it stops
3151 returning tokens. Then processing reverts back to the other branch.
3153 The point behind that roundabout calling convention is that it
3154 allows the lua function to buffer tokens for various uses. That in
3155 turn makes it possible to do some really advanced things like
3158 Now about that table. The table that the function will receive
3159 contains four fields:
3161 \starttabulate[|l|i|p|]
3162 \NC Key \NC type \NC Explanation \NC\FR
3163 \NC cmd \NC string \NC A representation of \LUATEX's internal
3165 \NC chr \NC number \NC The command code modifier\NC\NR
3166 \NC cs \NC string \NC If the token came from a csname, this
3167 is that csname\NC\NR
3168 \NC mod \NC character \NC A single character string representing
3169 the current processing mode. One of {\bf v}ertical, {\bf h}orizontal,
3170 display {\bf m}ath, {\bf n}o, internal {\bf V}ertical,
3171 restricted {\bf H}orizontal, or inline {\bf M}ath mode.\NC\LR
3174 If you modify the table before returning it, then it is wise to return
3175 either a (\type{cmd}, \type{chr}) pair, or a \type{cs} string. That is
3176 because if both options are present, the pair has precedence and the
3177 string is ignored. On the return table, {\bf mod} is ignored always.
3180 I have no long example code yet and it is not as complete as one
3181 would want it to be because it is not intercepting everything that
3182 comes in, only the bits that are triggered by the main control
3185 I decided to do a fast snapshot release for two reasons:
3187 * It is one of the easier extensions to get started with if you want
3188 to learn a bit about lua programming
3190 * I would welcome feedback on the token interface, because it will
3191 be needed in other places as well, soon. I am still not sure
3192 whether converting the command to/from strings is worth it, for
3193 example. And maybe it would be less confusing if you could return
3194 a list of tokens instead of being called repeatedly?
3196 Here is the trivial example to get you started:
3199 callback.register('token_filter', function (t) return t end)
3203 ==============================================================
3204 Luatex snapshot-20070307 was released 20070307
3205 ==============================================================
3208 * Non-CID PostScript-based Opentype fonts are now combined over
3209 the entire document, and properly subsetted. The code is
3210 borrowed from xdvipdfmx with some minor adjustments
3212 Adding support for CID-keyed OpenType fonts would not be hard
3213 but at the moment I lack example input (and incentive).
3215 * A small extension to the virtual fonts structure: you can use
3217 f.fonts[1] = { 'id' = 38}
3219 to do a backreference to a previously defined font. This saves quite
3222 * There was a bug in the handling of \leaders in the output whereby
3223 it's width was taken to be twice what it should be while writing
3224 to the PDF, fixed now.
3226 * The font inclusion code is cleaned up a bit by Hartmut.
3228 * Some compilation problems were fixed.
3230 * There is (quite a bit of) debugging information printed out when
3231 OTPs are in use, because I am tracking down a bug reported by Idris.
3233 The input of each and every OTP step is shown on the terminal in
3236 [57902][1568][58423][1568][58408][1568][58921]
3238 those are the decimal values of ocp i/o characters. If you don't
3239 need them, don't worry about it.
3241 ==============================================================
3242 Luatex snapshot-20070302 was released 20070302
3243 ==============================================================
3245 * The 'snapshot version' banner is now calculated dynamically
3246 at build time. This aids in figuring out what binary people
3247 are actually running, but it can possibly break the build on
3248 systems that do not have a `date` command.
3250 * The do_vf() function that checks for virtual font existance
3251 is now run immediately after the font definition instead of
3252 being postponed until characters are output.
3254 * The 'define_font' callback interface has changed a little.
3256 retval = function (name,size,fontid)
3258 where fontid is the internal font number of the font that
3259 is currently being defined, and retval can be either a table
3260 (as before) or a different, previously defined fontid. This is
3261 useful if a previous definition can be reused instead of
3262 creating a whole new font structure.
3264 * The internal font data structure has been redone. Glyph index
3265 inside a font is now handled by a sparse array, so that use
3266 of e.g. 0xFB01 (fi-ligature) no longer creates a 64000+ entries
3269 * The internal cache-ing of font metric information is turned
3270 off completely, because it was based on the assumption that
3271 name + size were a unique identifier for a font. This can no
3272 longer be guaranteed.
3274 * word boundary processing now works OK again, thanks to the
3275 introduction of two virtual characters in the font table
3276 definition. Besides the normal numeric entries in the
3277 f.characters table, there can now also be two string keys:
3278 "left_boundary" and "right_boundary". The ligatures and kerns
3279 of the 'left_boundary' character are used for the pre-word
3280 boundary processing, ligatures and kerns between characters
3281 and 'right_boundary' are used for the post-word processing.
3283 * Lua font table references are no longer cached by the
3284 executable ,in order to preserve memory. (the only downside
3285 is that font.fonts[] access is now slower because of the need
3286 to recreate the lua table).
3288 * There are other some small changes to the font table formats.
3289 Please see the manual for details.
3291 * A 'real' font can now still have virtual characters if they
3292 are loaded via lua. Just set the 'commands' section and/or
3293 the 'fonts' array to your liking, and it should work out.
3295 If you have created no 'fonts' array at all, then the default
3296 font (indentifier '1') is the current font, so that you
3297 can create virtual duplicates of already existing characters.
3299 Note: this does not work the other way. There can not be
3300 'real' characters in a virtual font!
3302 * Truetype-based opentype fonts no longer require Acrobat 7
3303 t(hey are now written out as if they are normal truetype).
3305 * A lua init script can now set 'texconfig.formatname' and/or
3306 'texconfig.jobname'. If ther is no file or format specified
3307 on the commandline, then, if, one of those keys is present,
3308 that key will be used instead of simply quitting with an
3311 * Placement of boxes and rules in right-to-left mode is debugged,
3312 and now seems to work ok.
3314 * Virtual font loading is debugged.
3316 * Some memory leaks are resolved
3318 * HZ font expansion should work ok again, but is not tested.
3320 * a few of the warning during opentype loading have been removed
3321 because the problems are rather harmless and turned out to be
3322 triggered by almost every font.
3325 ==============================================================
3326 Luatex snapshot-20070218 was released 20070218
3327 ==============================================================
3329 * The pdftex stuff is now updated to 1.40.3
3330 (and on top of that, it still has those extra patches announced in
3333 * The virtual font parser is debugged and now appears rather stable.
3335 * There is one extra virtual command:
3338 {"slot", 1, 97}, -- place character 97 'a' in local font 1.
3341 This is just a shortcut for {"font",1}, {"char", 97}
3343 * Some small memory leaks have been fixed. Luatex does not leak big
3344 time, but I'd like to get back to valgrind reporting '0 out of 0',
3345 instead of the current 800 bytes or so (that is a slow process).
3347 * You can read a truetype or opentype font from within lua code
3348 using font.read_ttf() or font.read_otf(), respectively.
3350 This feature uses a fair bit of the fontforge code, making the
3351 binary rather a bit larger than before. Just so you know.
3353 Apple (AAT, as well as encoding) support is still largely missing,
3354 and bitmap-only and old Multiple-Master truetype fonts are not
3355 supported at all (and never will be).
3357 The output format is (shadily) documented in the reference manual.
3358 At the moment, it very closely resembles the internal font stucture
3359 that is used by fontforge.
3361 * LuaTeX can now write wide OpenType fonts to the PDF file.
3363 There is no subsetting support yet, and a ToUnicode CMap is also
3364 still missing, but nevertheless it is already somewhat useful. The
3365 rule is very simple: if a font uses code points above 255, then it
3366 is considered to be a `wide' font, and it will be written out as
3367 a Type0 CID-keyed font to the PDF.
3369 Caveat: Getting suitable metrics into LuaTeX can be a bit of problem
3370 right now, because font.read_otf() does not produce anything that
3371 can be fed back into define_font without extra processing. Hans has
3372 some experimental Lua code for ConTeXt (of course :-)) and that is
3373 how I know it works. You can expect a nicer interface soon,
3374 hopefully next week, in the form of a simplistic table conversion
3377 * I have started work on supporting Aleph's bidi typesetting in PDF
3378 mode as well, simple text seems to be largely ok. More complicated
3379 documents will no doubt still show some bugs, but fixing those will
3380 be easy (once they are discovered). Exactly what happens with specials
3381 is not yet investigated.
3383 * Omega's (16-bit) wide virtual fonts now work OK in PDF mode. This
3384 means that many Aleph files can now be run in PDF mode directly.
3385 (the documents that use UTF-8 input encoding)
3388 ==============================================================
3389 Luatex snapshot-20070202 was released 20070202
3390 ==============================================================
3393 * The pdftex stuff is now updated to 1.40.2, and on top of that, it has
3395 - an extra patch from Han The Thanh that adds a primitive to control
3396 the merging of fonts from external pdf images (\pdfreplacefonts),
3397 and a bugfix for virtual font handling.
3399 - an extra patch by Hartmut Henkel that removes a number of malloc()s
3400 and free()s from the calls to the compression library, thereby
3401 making luatex run a bit faster.
3403 * luatex now happily accepts the following low-level syntax:
3405 \font\myfont = <general text> <at specifier>
3407 It feeds the <general text> to either kpathsea or a lua script for
3408 further processing after stripping the braces.
3410 In itself, this is not all that useful, but the reason for this
3411 syntax extension is that it paves the road for a macro package
3412 to do something like this:
3414 \font\myfont = {font="Times New Roman", color="\darkred",
3415 encoding="ec", features="liga", size=10bp}
3417 without having to resort to system-specific quoting mechanisms.
3418 Macro (and other) expansion takes inside the braced argument.
3420 (I am considering adding this extension to \input as well).
3422 * It is now possible to define a font into the font.fonts[]
3423 directly from lua, but becayse use is limited, I am only
3424 mentioning it to be complete.
3427 <number> id = font.define(<table> font)
3429 * There is a (not very reliable yet) virtual font parser accessible
3433 <table> vfdata = font.read_vf(<string> name, <number> size)
3435 The interpreter tries to give a reasonable representation of a
3436 virtual font file (the .vf file). Besides a few simple top-level
3439 designsize -- in scaled points
3441 name -- the file name
3442 checksum -- the vf checksum
3443 header -- the header comment (if any)
3445 it also has a top-level array 'fonts' wherein each item is a mini-
3446 array describing one of te mapped fonts. An example makes this
3449 "fonts" = { {"ptmr8a",655360}, {"psyr", 600000} }
3451 says that the first referenced font (index 1) in this virtual font
3452 is ptrmr8a.tfm loaded at 10pt, and the second is psyr.tfm loaded
3453 at a little over 9pt. These index numbers are used by the character
3454 command definitions that follow.
3456 At top level, there is a 'characters' array, just as for a normal
3457 font, except that each item has only two keys:
3459 "width" -- the tfm width (as stored in the .vf)
3460 "commands" -- an array of virtual font commands for a character.
3462 each of the items in the 'commands' array is itself a tiny hash.
3464 Each of those mini-hashes represents a single character packet
3465 command. Here is a 'commands' entry that contains every possible
3469 {"push"}, -- remember where we are
3470 {"right", 5000}, -- move right 0.08pt
3471 {"font", 1}, -- select the fonts[1] entry
3472 {"setchar", 97}, -- place character 97 'a'
3473 {"pop"}, -- go all the way back
3474 {"down", -200000}, -- move *up* about 3pt
3475 {"special", "pdf: 1 0 0 rg"} -- switch to red color
3476 {"rule", 500000, 20000} -- draw a bar
3477 {'special',"pdf: 0 g"} -- back to black
3481 * But the big news is that you can now define your own virtual fonts
3482 on the fly, by adding a few statements to the table returned to
3483 the 'define_font' callback.
3485 There are a few requirements:
3487 - The table has to have a top-level key 'type', and it's value
3490 The presence of this key with the specific value 'virtual'
3491 will trigger handling of the rest of the special virtual font
3492 fields in the table, but the mere existance of 'type' is
3493 enough to prevent luatex from looking for a virtual font
3496 Therefore, this also works 'in reverse': if you are absolutely
3497 certain that a font is not a virtual font, assigning the value
3498 'base' or 'real' to 'type' will inhibit tex from looking for a
3499 virtual font file, thereby saving you a disk search.
3501 - There must be a top-level 'fonts' array, as explained above.
3502 Any fonts that are not yet known to luatex at that moment,
3503 will be loaded automatically (Warning: do not ever use a font
3504 in 'fonts' with the same name you will return in the table you
3505 are defining right now!).
3507 - Each and every character in the fonts needs to have a 'commands'
3508 key, as explained above.
3510 The main point behind these restrictions is that a font is
3511 *either* a base font *or* a virtual font. It cannot be both
3515 ==============================================================
3516 Luatex snapshot-20070126 was released 20070126
3517 ==============================================================
3520 * Underscores in pascal identifiers are now retained.
3522 This took quite a bit of work. The web2c conversion tools
3523 needed only small adjustments, but most of the existing C
3524 code depended on the removal of the underscores. I had to
3525 go through changing many lines. 99% of all identifiers are
3526 now written the same on the pascal side as on the C side.
3527 This makes writing interface code quite a bit less confusing.
3529 Not everything is completely clean yet, because I did
3530 not want to change the web2c-specific C files. I often
3531 took the other approach and removed the underscores
3532 from the web2c options (like 'parsefirstlinep') in the
3533 change file instead. Ugly, but predictable.
3535 There is about a dozen or so of #defines left, that map
3536 memoryword -> memory_word
3540 * The virtual font parsing and interpreting is now done in C.
3541 (this is because it needs to be interfaced with the lua-based
3544 * I am in the process of merging: the VF stuff; the TFM stuff;
3545 the lua font loading; and the pdftex font backend into one
3546 interface, so there were some smallish changes relating to
3547 that as well. Nothing worth mentioning just yet except that
3548 luatex now will read "ovf" files as well as "vf" files.
3550 * There are a few really small bugfixes for bug reports I received
3551 on this list and by email.
3553 ==============================================================
3554 Luatex snapshot-20070119 was released 20070119
3555 ==============================================================
3557 The largest new bit is the existence of a font.fonts array, that you
3558 can use to query/adjust the internal defined tex fonts. See the manual
3561 Two small new lua extensions are added as well:
3563 * os.setenv() -- to change the environment
3564 * os.exec() -- a non-returning os.execute()
3566 And a bit of cleanup in the commandline processing.
3569 ==============================================================
3570 Luatex snapshot-20070117 was released 20070117
3571 ==============================================================
3573 * the pdftex core is updated to 1.40.1, and web2c to 7.5.6
3575 * the pdftex-specific documentation is removed
3577 * lua lpeg library updated to 0.4
3578 ( http://www.inf.puc-rio.br/~roberto/lpeg.html )
3580 * the C part of the lua md5 library is added to the binary
3581 ( http://www.inf.puc-rio.br/~roberto/md5/md5-5/md5.html )
3583 * --luaonly now puts the script itself at arg[0], and
3584 preceding commandline items in the negative indices
3585 (instead of starting the count at zero).
3586 This new approach is compatible with the standalone lua
3590 ==============================================================
3591 Luatex snapshot-20070107 was released 20070107
3592 ==============================================================
3594 Hot on the heels of 20070105, a new snapshot. It turns out
3595 that using the callback to define a font broke all ligatures.
3596 This snapshot fixes that, and it has a few minor updates to
3597 the manual. Next shapshot will be after the inclusion of
3600 ==============================================================
3601 Luatex snapshot-20070105 was released 20070105
3602 ==============================================================
3604 * the calculations that converted lua strings into tex units
3605 were horrendously wrong, this was discovered by Pawel.
3607 * io.lines() was still using the old, line ending sensitive,
3608 code from the lua core distribution
3610 * The main font memory is allocated as needed^(1) instead of
3611 statically pre-allocated.
3613 * ligatures and kerns are separated completely from each other,
3614 so use of \noligatures no longer inhibits kerning as well
3616 * Metrics can be loaded using a callback: 'define_font'.
3617 The value returned should be a lua table representing a tfm
3620 * there is a new lua table: font. It has one function:
3621 font.read_tfm() that returns a table reprentation of the tfm
3622 contents, for use with the above mentioned callback
3624 * I dropped suppport for "Level 1" OFM files. I would like
3625 to have a try at those extended font files, but I lack
3626 examples (fonts nor documents). I am not even sure such
3627 fonts have ever existed in the 'real world'.
3631 ==============================================================
3632 Luatex snapshot-20061208 was released 20061208
3633 ==============================================================
3635 * There is a new switch: --safer. This disables a number of lua
3636 functions that are more or less dangerous (a detailed list is
3639 * Two longstanding bugs have been fixed: \latelua works once
3640 again (patch by Hartmut) and a bug that caused mysterious crashes
3641 turned out to be a problem inside the paragraph builder
3642 (reconstitution of ligatures)
3644 * Six new string iterators have been added to the string library:
3645 string.characters (one 1-letter string)
3646 string.bytes (one byte)
3647 string.characterpairs (two 1-letter strings)
3648 string.bytepairs (two bytes)
3649 string.utfcharacters (a one-character utf-8 string)
3650 string.utfvalues (a unicode code point number)
3652 * The top 256 values of the unicode range (starting at hex
3653 value "10FF00) are now reserved for byte output. Characters
3654 in that range will be written by luatex after substracting
3655 that offset. The net result is that \char"10FFA9 is written
3656 as byte value hex A9 = decimal 169 = copyright sign in latin1
3658 This trick allows byte-oriented output to \pdfliterals and
3659 \specials, but should be considered very experimental.
3661 * There is a new callback called 'process_input_buffer' that can
3662 be used to mutate the line buffer just before LuaTeX actually
3663 starts looking at it.
3665 * The statistics table now has readable items
3667 statistics.lasterrorstring
3668 that represent TeX's current input id and the last error string
3670 * The show_error_hook callback no longer receives any arguments
3671 * There is a new switch: --safer. This disables a number of lua
3672 functions that are more or less dangerous (a detailed list is
3675 * Two longstanding bugs have been fixed: \latelua works once
3676 again (patch by Hartmut) and a bug that caused mysterious crashes
3677 turned out to be a problem inside the paragraph builder
3678 (reconstitution of ligatures)
3680 * Six new string iterators have been added to the string library:
3681 string.characters (one 1-letter string)
3682 string.bytes (one byte)
3683 string.characterpairs (two 1-letter strings)
3684 string.bytepairs (two bytes)
3685 string.utfcharacters (a one-character utf-8 string)
3686 string.utfvalues (a unicode code point number)
3688 * The top 256 values of the unicode range (starting at hex
3689 value "10FF00) are now reserved for byte output. Characters
3690 in that range will be written by luatex after substracting
3691 that offset. The net result is that \char"10FFA9 is written
3692 as byte value hex A9 = decimal 169 = copyright sign in latin1
3694 This trick allows byte-oriented output to \pdfliterals and
3695 \specials, but should be considered very experimental.
3697 * There is a new callback called 'process_input_buffer' that can
3698 be used to mutate the line buffer just before LuaTeX actually
3699 starts looking at it.
3701 * The statistics table now has readable items
3703 statistics.lasterrorstring
3704 that represent TeX's current input id and the last error string
3706 * The show_error_hook callback no longer receives any arguments
3708 * The statistics table now has readable items
3709 statistics.luabytecodes
3710 statistics.luastates
3711 statistics.luabytecode_bytes
3712 statistics.luastate_bytes
3713 for memory statistics reporting
3716 * The statistics table now has readable items
3717 statistics.luabytecodes
3718 statistics.luastates
3719 statistics.luabytecode_bytes
3720 statistics.luastate_bytes
3721 for memory statistics reporting
3724 ==============================================================
3725 Luatex snapshot-20061204 was released 20061204
3726 ==============================================================
3728 * The LuaTeX interpreter can now be run as a standalone lua script
3729 processor, by using a commandline like this:
3731 luatex --luaonly=luatools.lua
3733 * Luafilesystem (http://www.keplerproject.org/luafilesystem/ ) is
3736 * There are a total of eight new file discovery callbacks:
3745 this enhances the orthogonality of the callback system, nothing
3746 fundamental is changed.
3748 * There is a new callback called 'process_input_buffer' that can
3749 be used to mutate the line buffer just before LuaTeX actually
3750 starts looking at it.
3752 * The 'reader' and 'close' functions from 'open_read_file' now
3753 receive the table they are defined in as a function argument,
3754 that can be used as a per file localized data store.
3756 * Updated the Lua to the latest 5.1.1, with all known bug patches
3757 from the website applied as well
3759 * Runtime autoloading of lua .so files is now off on all platforms.
3761 * The statistics table now has readable items
3763 statistics.linenumber
3764 that represent TeX's current file name and line number
3766 * The support for user-defined type3 font .pgc files and the
3767 associated 'read_miscfonts_file' callback has been removed.
3768 (nobody used it anyway)
3770 * General cleanups to the source tree and build process.
3772 ==============================================================
3773 Luatex snapshot-20061023 was released 20061023
3774 ==============================================================
3776 * there was a missing callback: find_font_file
3777 * program_invocation_name was not set
3778 * buf_size could not be more that 300k
3781 ==============================================================
3782 Luatex snapshot-20061013 was released 20061013
3783 ==============================================================
3785 Last friday I uploaded a new snapshot and today I finally
3786 finished updating the manual to go with it. The changes all
3787 relate to startup, file i/o, and callbacks. The main achievement
3788 is: you can now run luatex without it *ever* initializing kpathsea.
3790 Because I am lazy, I have checked in the pdf of the manual
3791 as well, so that I can say: Please look at
3793 https://foundry.supelec.fr/plugins/scmsvn/viewcvs.php/manual/
3794 /luatexref-t.pdf?root=luatex&rev=148&view=log
3796 for all the details. :-)
3798 ==============================================================
3799 Luatex snapshot-20061002 was released 20061002
3800 ==============================================================
3803 * Some infrastructure changes:
3805 libs/slnunicode-0.9.1/ renamed to libs/slnunicode/
3809 (zziplib is using a different version of autofoo. I know I have
3810 messed up something in the build process, but the bit we need
3811 compiles ok so I've postponed attempting to fix it)
3813 * The callback logic has changed quite a bit.
3815 - all callbacks are now only possible in lua state 0.
3817 - The callback 'input_line' has disappeared, and is replaced by
3818 'open_read_file'. One of the return values of that callback
3819 is a table that defines a 'reader' function for line reading.
3821 See the manual for further information on this.
3823 - There are some new callbacks for the reading of various binary
3824 files. The current ones are:
3826 "read_ocp_file", "read_vf_file", "read_data_file", "read_font_file",
3829 The rest of the file types will follow soon (fonts, enc files, and
3832 - There are also some new callbacks that 'find' a file's pathname:
3834 "find_truetype_file", "find_type1_file", "find_image_file"
3836 here too, more will follow later.
3838 - the functions from io. that were copied to texio have been removed
3839 again. The new callbacks do not pass file pointers around, so
3840 they ere not longer needed
3842 - the 'open_write_file' is temporarily unavailable
3844 * startup.lua is now always loaded into lua state 0
3846 * The luazip library from kepler is linked in, so there the table 'zip'
3847 is accessible from all lua states.
3849 ==============================================================
3850 Luatex snapshot-20060922 was released 20060922
3851 ==============================================================
3853 * The texio table has gained a new function:
3855 tex_file = texio.open(filename)
3857 returns a file handle of a type that luatex can use
3858 internally (the return of io.open is unusable in callbacks
3859 because it will be garbage-collected at a random time)
3862 * In related news, there are two new callbacks you can define:
3864 callback.register('open_read_file', f)
3865 callback.register('open_write_file', f)
3867 where your function should have the following conventions:
3869 function f (number id_number, string asked_name)
3870 return boolean success, string actual_name, tex_file filep
3873 id_number: zero for the log or \input files or TeX's \read
3874 number incremented by one (\read0 becomes 1).
3875 asked_name: the user-supplied filename
3877 success: return false for error, true otherwise.
3879 The remaining two items are only looked at if you return true:
3881 actual_name: the true filename used (with extension!)
3882 filep: a file object opened though texio.open()
3885 * The tex.print function has an extra optional parameter:
3887 tex.print(ctt_id n, strings ...)
3889 This prints the strings using the catcode regime defined by
3890 \catcodetable n (assuming n is valid, see below)
3892 * The new function tex.sprint has the same lua conventions as
3893 tex.print, but behaces slightly different on the tex side:
3895 ** tex does not switch to the 'new_line' state (this implies
3896 that leading spaces are not ignored)
3897 ** no \endlinechars are inserted
3898 ** trailing spaces are not removed from the argument
3900 * Catcode tables are a completely new feature, that allows
3901 you to switch the current catcode regime in one simple
3904 \catcodetable <count>
3906 Switches to the use of a different set of catcodes (table),
3907 that is stored under the number <count>. Such a table has to
3908 be previously created using one of the two command below, or
3909 the number 0 (which is pre-inititialized)
3911 This command obeys normal grouping rules.
3913 \initcatcodetable <count>
3915 creates a new, global, independent catcode table with catcodes
3916 matching the code that are predefined by initex (tex -ini).
3918 This allocation is global
3920 \savecatcodetable <count>
3922 copies the current set of catcodes to a new, global, table
3923 with id number <count>. The definitions in this new table
3924 are all treated as if they were made in the outermost level.
3926 This allocation is global
3928 At the end of each grouping level, items within all existing
3929 catcodetables are restored, regardless of which one is the
3930 currently active table.
3932 Catcode table numbers cannot be larger than 0xFFFFFFF (228-1)
3934 * There is a new lua table: lua. It contains three read-only
3937 lua.id -- the id number of the instance
3938 lua.version -- a luatex version identifier string
3939 lua.startupfile -- the full filename (+path) of startup.lua
3941 and it also contains a read/write array:
3943 lua.bytecode[] -- lua executable bytecode
3945 This array can be used to save and restore lua functions
3946 across lua states. The accepted values are for assignments
3947 are functions and nil. Likewise, the retrieved value is
3948 either a function or nil.
3950 The contents of the lua.bytecode array is stored inside the
3951 format file, so it can also be used to preload lua code.
3954 * The format files are quire a bit smaller than before
3957 ==============================================================
3958 Luatex snapshot-20060915 was released 20060915
3959 ==============================================================
3961 * There is a new TEX primitive: \formatname. It is similar
3962 to \jobname (read-only). In initex, the expansion is empty,
3963 otherwise the expansion is the same as the \jobname from
3966 * the lua "tex" table has been expanded with a few of the 'convert'
3967 codes (read-only). The supported ones at this moment are:
3974 tex.pdfnormaldeviate
3981 This list looks haphazard, but it really is not. These are
3982 all the cases of the 'convert' internal command that do not
3983 require an argument.
3985 * The metatables of the subtables like tex.dimen[] etc. are now
3986 adjustable from lua (not that I recommend doing that;-)).
3988 * On the lua side, there is a new global value: "luaid"
3989 It holds the internal id number of this \directlua instance.
3991 * There is a new lua table, "callback", that has the single function
3992 "callback.register", used to register callbacks. This replaces
3993 the previous concoction (see my message about snapshot 20060901).
3996 callback.register(<callback name>,function (f) ... end)
3998 where the <callback name> is for the moment, either "input_line"
3999 or "show_error_hook".
4001 This function internalizes the callback function in such a way
4002 that you no longer have to worry about \luacallback (which has
4003 been removed), nor does it matter if you redefine a function
4006 The internal testing for callback presence is also quite a bit
4007 faster, thanks to this change. Callback assignments are global
4008 and the "input_line" always takes effect starting on the next
4009 input line to be read from an actual file.
4012 * \detokenizedlua has been removed. It is functionally replaced by
4013 the new function call tex.write("").
4015 Each argument to each call of tex.write () counts as an input
4017 ** all catcodes on that line are either 'space' (for " ") or
4018 'character' for all others.
4019 ** there is no \newlinechar appended.
4021 * The implementation of tex.print() has changed as well:
4023 ** the very last tex.print() line from a \directlua
4024 will no longer have a trailing \newlinechar
4025 (this is very convenient when \directlua is used
4027 ** tex.print() is quite a lot faster than before, and the total amount
4028 of returnable text from a \directlua is now only limited by
4029 available system RAM. However, each separate tex.print ()
4030 argument has to fit in TeX's input buffer.
4032 * The new primitive \luastartup can be set inside the format file
4033 to specify the lua instance number in which a possible runtime
4034 startup.lua script is executed (initex always uses 0)
4036 * There is a new primitive \scantextokens. Differences with
4037 eTeX's \scantokens are:
4039 ** the last line (usually only) from \scantextokens
4040 does not have a \newlinechar
4042 ** \scantextokens never raises an eof error.
4044 This means things like
4047 {\scantextokens{\ifnum1=1 true}\else false\fi}
4049 are legal input (but potentially dangerous!).
4052 local d = tex.dimen["unknowndimen"]
4053 'd' will now become "nil" instead of raising an error
4056 tex.dimen["unknowndimen"] = d
4057 is still (and probably will remain) illegal
4059 ==============================================================
4060 Luatex snapshot-20060908 was released 20060908
4061 ==============================================================
4063 * BIG CHANGE: \directlua now runs \scantokens internally.
4065 There is no longer a need to call scantokens yourself, the
4066 tex.print() output is now fed straight into a pseudo file.
4067 This is quite a bit faster as well as easier to use, but
4068 just in case you want it, the old behaviour is still present,
4074 * The texio library now has its own (partial) set of I/O commands,
4075 so that the standard lua io library is back to the distributed
4076 state (no more patched garbage collector)
4078 Note: This is really a very small change (it should not have any
4079 impact on wellbehaved input files), but I attempt to be complete
4080 in these notes, since there is no official documentation yet.
4083 * There is a new standard library available: kpse
4085 The most important function in that library is find_file:
4087 string = kpse.find_file(string filename
4089 [,boolean mustexist])
4091 both "type" and "mustexist" are optional, so the function
4092 has from one upto three arguments.
4094 "type" is like the '-format' argument of kpsewhich. You can
4095 run 'kpsewich -h' for a list. The default type is "tex".
4097 "mustexist" is like '-must-exist', and the default is false.
4098 If you specify "true" (or a nonzero integer), then the kpse
4099 library will search the disk as well as the ls-R databases
4101 The new library also has three other functions that map
4102 straight to kpsewhich commandline options:
4104 string = kpse.expand_path(string)
4105 string = kpse.expand_var(string)
4106 string = kpse.expand_braces(string)
4108 * There is a second callback possibility:
4110 texio.show_error_hook(string message,
4111 string|number indicator,
4114 This command is run from inside the TeX error function, and the
4115 idea is to allow you to do some extra reporting on top of what
4116 TeX already does (none of the normal actions are removed).
4118 "message" is the formal error message tex has given to the
4119 user (the line after the "! ")
4120 "indicator" is either a filename (when it is a string) or a
4121 location indicator (a number) that can means lots of different
4122 things like a token list id or a \read number.
4123 "lineno" is the current line number
4125 This is an investigative item only, comments are welcome but do
4126 not take the syntax seriously.
4128 The final goal IMO is the total replacement of TeX's error
4129 handling routines, but that needs lots of adjustments
4130 in the web source because TeX deals with errors in a somewhat
4131 haphazard fashion (it needs unification first). The current
4132 hook is only for 'testing the water'.
4134 * It is now possible to use named items in the
4140 subtables, so you can have
4142 tex.count.scratchcounter = 0
4143 local enormous = tex.dimen["maxdimen"]
4145 Luatex looks up the value for you on the fly. You have to use a
4146 valid \countdef (or \dimendef, or \toksdef), anything else will
4149 In a normal TeX file, you don't do \dimen\maxdimen, but the
4150 lua syntax seems to be a bit cleaner to me. The intention is
4151 to evntually also allow \chardefs and macros that expand
4152 into a number (todo)
4155 * The tex table has also been extended with a large list of internal
4156 parameters (partially read/write). It is possible to access
4157 about every primitive that you can use after \the *and* is a
4158 single token. So there is
4160 integer = tex.tracingcommands (\the\tracingcommands)
4161 integer = tex.prevgraf (\the\prevgraf)
4162 string = tex.output (\the\output)
4164 etc. for all of the internal parameters, but not the items
4165 that need extra arguments (like \the\scriptfont )
4167 The subset comprising simple integer and dimension registers
4168 are writable as well as readable (stuff like \tracingcommands
4171 The fact that both lists are still quite limited is a result of
4172 the very different types of things that can occur after \the and
4173 also on the LHS of an assignment. The remaining primitives will
4174 be filled in when there is a real need or implementation becomes
4175 simple, whichever comes first.
4179 ==============================================================
4180 Luatex snapshot-20060901 was released 20060901
4181 ==============================================================
4183 All changes are related to lua this time, and most are quite unstable
4184 / experimental. But first the things that are stabel/fixed bugs:
4186 * A VF loading bug that turned up in some of Hans' fonts
4189 * A small series of bounds checking fixes to \ocplist has been
4190 added to prevent the system from crashing due to array indexes
4191 running out of bounds.
4193 * The Lua file searching paths are now fixed. The search path for lua
4194 script files now contains the following items (tried in order)
4195 1. the local directory:
4197 (for document-specific files)
4198 2. the items from the expansion of kpathsea's $TEXMFSCRIPTS variable,
4199 but only the parts containing 'lua' as a subpath:
4200 $TEXMFSCRIPTS<lua>/?.lua
4201 $TEXMFSCRIPTS<lua>/?/init.lua
4202 (for format-specific files)
4203 3. the $SELFAUTOPARENT sibling directory named 'lib'.
4204 $SELFAUTOPARENT/lib/lua/5.1/?.lua
4205 $SELFAUTOPARENT/lib/lua/5.1/?/init.lua
4206 (for files that are not related to tex)
4208 The search path for dynamic libraries has only
4209 1. the local directory:
4211 (for document-specific files)
4212 2. and the $SELFAUTOPARENT sibling directory named 'lib'.
4213 $SELFAUTOPARENT/lib/lua/5.1/?.so
4215 (of course the extension is .dll on windows, but .dlls do not
4216 work at the moment so it will not do you much good)
4218 * There are two functions available within a new table called
4220 texio.write (luastring)
4221 texio.write_nl (luastring)
4222 both write the luastring to the same location(s) TeX writes
4223 its stuff. So if \batchmode is on, it writes only to the
4224 log, inside a \write, it prints to the current write file,
4227 A read|write interface to TeX's "file selector" will
4230 * At startup, luatex searches for a script named
4232 in the path list I explained above. If such a file exists, it is
4235 This happens right before the first input file needs to be opened
4236 (that is after format loading, but before any \everyjob tokens).
4238 From within the script, you can check the value of
4242 that is the 'format identification' as used by TEX. When the variable
4243 is equal to nil, luatex in in 'initex' mode, otherwise it will be
4244 something like: " (format=plain 2006.9.1)"
4247 Now for the experimental portion: callbacks. Here is what I have done
4250 * The main reason for wanting startup.lua is file (input) re-encoding.
4251 For this purpose, it is now possible to set up a callback for
4254 If you attach a Lua function to
4258 then from the next input line onwards, luatex will run that
4259 function whenever it needs a new input line from a text file.
4261 Your function will receive a file handle as argument, and
4262 should return either a string or nil (with nil signalling that
4263 the end of file has occurred).
4265 The trivial case is simply this:
4270 texio.input_line = reader
4273 Warning: The implementation is not totally finished yet. For the
4274 moment the file handle ("f" in the example) is a normal lua file,
4275 with a simple but important restriction: you cannot alter its value.
4276 You cannot f:close() it, or assign it a different value. luatex
4277 will eventually close the file itself.
4279 The restriction is a side-effect of a synchronisation problem with
4280 the lua garbage collector. Because of this, it also was necessary
4281 to turn off the automatic file closing code for normal lua io
4282 files (In other words: you have to close yourself all the files
4283 you opened yourself, and you should not close any files you did
4286 In the near future, "f" will become a special 'texio' file object
4287 and the needed functionality from the normal io library will be
4288 reimplemented. Along with that change, there will also be a callback
4289 to open (i.e. find) files, and a simple interface to the compiled-in
4290 kpathsea to use within that callback.
4293 ==============================================================
4294 Luatex snapshot-20060825 was released 20060825
4295 ==============================================================
4297 The main change in this snapshot is that it uses far less memory.
4298 luatex -ini on my linux machine went from 326Mb (last week) to
4299 93Mb (now), and "texexec luatex" now ends at 184Mb instead of
4302 This is achieved by two big changes:
4304 * The \mathcode, \delcode, \catcode, \sfcode, \lccode and \uccode
4305 tables are now sparse arrays that are implemented in C. They
4306 are no longer part of the TeX "equivalence table" and because
4307 each had 1.1 million entries with a few memory words each, this
4308 makes a major difference.
4310 See mathcodes.c and textcodes.c if you are interested in the
4311 gory details, but be warned: the code is still extremely
4312 rough and ugly. In particular, the dump and undump routines
4313 are far from optimal, resulting in somewhat larger format files
4314 than before (approx 1.3Mb larger with unicode-letters loaded,
4315 10k without); and the assignments do not show up when using
4316 the etex tracing routines \tracingassigns and \tracingrestores
4317 (code simply not written yet)
4319 * Single-character commands are no longer "special" internally,
4320 they are stored in the hash just like the multiletter csnames.
4323 ==============================================================
4324 Luatex snapshot-20060818 was released 20060818
4325 ==============================================================
4327 The snapshot is up to par with Aleph-RC4 (from texlive devel)
4328 and the latest pdftex beta (even newer than 20060811). However,
4329 there are some differences, to summarize:
4331 * There is no pool file (all strings are embedded)
4333 * -8bit and -translate-file are silently ignored
4335 * There is no mltex nor enctex (conflicts with aleph)
4337 * The tex functionality is always present and enabled
4338 (but see below about TeXXeT), so the asterisk or
4339 -etex switch for initex is not needed
4341 * "plus 1 filllllllll" does not generate any errors from TeX
4343 * TeXXeT (from eTeX) is not present, so the primives
4351 * The experimental pdftex regex match operations are removed,
4352 because that feature does not make much sense when lua is
4353 available so the primitives
4358 * The input translations from Aleph are not implemented, the
4359 16 related primitives are all missing
4365 \noDefaultOutputMode
4368 \DefaultInputTranslation
4369 \noDefaultInputTranslation
4372 \DefaultOutputTranslation
4373 \noDefaultOutputTranslation
4374 \noOutputTranslation
4376 All file IO assumes UTF-8, except that all the low-ascii
4377 controls except TAB, CR en LF are written to the terminal
4378 using ^^ notation (even these are binary in the log file).
4380 * Input characters can use the full range of Unicode,
4381 but it probably only makes sense to use values above
4382 the base plane for \mathcode and \catcode assignments,
4383 since the fonts as well as the hyphenation patterns
4384 are strictly 16-bit still.
4387 \pdfpagewidth and \pagewidth,
4388 \pdfpageheight and \pageheight,
4389 \fontcharwd and \charwd,
4390 \fontcharht and \charht,
4391 \fontchardp and \chardp,
4392 \fontcharic and \charic,
4393 are all aliases of eachother.
4397 clears a marks class completely.
4399 * The experimental pdftex primitives
4404 and provided without the extra 'pdf' prefix, so they are
4412 * I probably forgot to mention some things :-)