2 This file is in the public domain.
4 ==============================================================
5 Luatex beta-0.81.0 was released 2015100722 (5350)
6 ==============================================================
10 * A couple of primitives are removed, renamed and/or promoted to core (luatex) primitives.
11 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,
13 Updating to this version also might demand an update in the
14 macro package that you use!
18 % removed, can be done with callbacks if needed, one can define dimen dummies, like
20 \newdimen\pdfeachlineheight
21 \newdimen\pdfeachlinedepth
22 \newdimen\pdflastlinedepth
23 \newdimen\pdffirstlineheight
24 \newdimen\pdfignoreddimen
26 % removed, were already obsolete, one can \let them
28 \let\pdftexversion \luatexversion
29 \let\pdftexrevision\luatexrevision
30 \let\pdftexbanner \luatexbanner
32 % promoted (from pdftex), so pdf prefix gone, one can \let them
34 \let\pdfnormaldeviate \normaldeviate
35 \let\pdfuniformdeviate\uniformdeviate
36 \let\pdfsetrandomseed \setrandomseed
37 \let\pdfrandomseed \randomseed
39 % promoted (from omega), so pdf prefix gone, one can \let them
41 \let\pdfpagewidth \pagewidth
42 \let\pdfpageheight\pageheight
44 % redundant (etex wins over omega), so \font-less ones gone, one can \let them
46 \let\chardp\fontchardp
47 \let\charht\fontcharht
48 \let\charit\fontcharit
49 \let\charwd\fontcharwd
51 % promoted (from aleph)
56 % promoted (from pdftex)
62 % removed (from pdftex), so *pdf* ones gone, one can \let them
64 \let\ifpdfabsnum \ifabsnum
65 \let\ifpdfabsdim \ifabsdim
66 \let\ifpdfprimitive\ifprimitive
67 \let\pdfprimitive \primitive
69 % promoted (from omega)
77 % promoted (from aleph)
81 % promoted (from pdftex)
92 % promoted (from pdftex), so *pdf* ones gone, one can \let them
94 \let\pdfprotrudechars\protrudechars
95 \let\pdfadjustspacing\adjustspacing
97 \let\pdfnoligatures \ignoreligaturesinfont
98 \let\pdffontexpand \expandglyphsinfont
100 % promoted (from pdftex), so *pdf* ones gone, one can \let them
102 \let\pdfsavepos \savepos
103 \let\pdflastxpos\lastxpos
104 \let\pdflastypos\lastypos
106 % on the todo list are:
108 \pdfoutput : \outputmode
109 \pdfmatrix : will get a normal syntax, no weird { } parsing
111 \pdfcolorstackinit : might become obsolete
112 \pdfcolorstack : might become obsolete
114 So, apart from a few, the \pdf* primitives now relate to the backend only.
116 % There is also a new primitive:
120 This one determines the minimum word length (per language).
121 At the same time we moved the (ex)hyphenpenalties
122 in the disc nodes so you can inject discretionaries with specific penalties.
124 There will also be an updated manual.
128 * new epdf.openMemStream(s,l,docid)
129 to create a pdf from a lightuserdata or string.
130 (experimental, do not use in production.)
132 * uniform random generator in mplib is now specific for each numbersystem;
134 * too_precise implemented for binary number system;
139 ==============================================================
140 Luatex beta-0.80.0 was released 20150319 (5195)
141 ==============================================================
143 * New library newtokenlib. It will replace the current token lib.
144 * Fixed a bug on the normal random generator for double/decimal/binary
146 * Several others bugs fixed.
149 ==============================================================
150 Luatex beta-0.79.3.1 was released 20150122 (5140)
151 ==============================================================
153 * Fixed a bug in mp.w with a wrong input that gives a seg. fault.
157 ==============================================================
158 Luatex beta-0.79.3 was released 20150121 (5130)
159 ==============================================================
162 * It's now possible with the MinGW compilers to build luatex and luajittex as DLL
163 for Windows 32bit/64bit. The files are:
164 libkpathsea-6.dll luajittex.exe luatex.exe texlua52.dll texluajit.dll
165 In the next release the build.sh script be updated; for the moment just add
166 "--enable-shared -disable-native-texlive-build " after --disable-all-pkgs
168 Building as DLL was tested only for Windows.
170 * When possibile symbols in the exe are now hidden:
171 this should avoid conflicts with the loading of dynamic shared object.
173 * several bugfixes and improvements. The patches for MetaPost
174 fix seg. faults occourred with wrong inputs.
176 mp_get_numeric_value, mp_get_string_value, mp_get_boolean_value
177 works if the value is a variable (i.e. not an internal variable,
178 a loop variable and a macro argument);
179 only mp_get_numeric_value now has support for loop variable
180 and internal variable (but still not for macro arguments).
183 ==============================================================
184 Luatex beta-0.79.2 was released 20141111 (5082)
185 ==============================================================
188 * WARNING: the structure of the format file is changed.
189 After the Web2C \TeX's magic constant: "W2TX" there is now
190 a FORMAT_ID, a 32bit field that cannot be between 0 and 256 (included)
191 so that there are no conflicts with the preexisting structure
193 The value can be seen with --debug-format and currently is
194 907 (the sum of the values of the bytes of the ASCII string "don knuth").
196 * There is a new set of lua functions for StructElement and Attribute,
197 convenient (even if not indispensable) for tagged pdf.
200 * several bugfixes and improvements.
203 ==============================================================
204 Luatex beta-0.79.0 was released 20140328 (4960)
205 ==============================================================
207 * The luafontloader now returns 'tsidebearing' glyph values
208 for OT/TT fonts, if applicable.
210 * new lua variables: stats.luatex_hashtype, stats.luatex_hashchars,
211 stats.lastluaerrorstring; the luajittex string hash method is now
212 lua 5.1 compliant which gives better results for similar strings
214 * new lua functions: tex.init_rand(), tex.uniform_rand(),
215 tex.normal_rand(), tex.lua_math_randomseed(), tex.lua_math_random(),
216 tex.show_context(); these helpers make luatex and luajittex compatible
218 * In the lua node interface, there were often issues with rubbish
219 in (especially) 'prev' fields because luatex itself never looks
220 at those values. This is now cleaned up to prevent weird stuff
221 happening inside lua node processing code.
223 * pdf.pageattributes, pdf.pagesattributes, pdf.info, pdf.catalog,
224 pdf.names and pdf.trailer now behave consistent and can be used
225 to add these properties at the lua end in addition to their \pdf*
226 counterparts atthe tex end; there are now pdf.get* and pdf.set*
227 commands for them too (in future versions the old ways can become
230 * new accessors pdf.geth, pdfgetv, pdfgetpos, getgetmatrix as well
231 as pdfhasmatrix helpers (in future versions the direct pdf.h and
232 pdf.v accessor can become obsolete)
234 * the pdf.pdf* variables have been removed (they were already
235 obsolete for some years)
237 * a new properties mechanism for associating lua tables with nodes
238 that get cleaned up when nodes a freed (see manual for details)
240 * several improvements to the way temporary (backend) data is stored
241 at the lua end (better protection, more consistent)
243 * a 'l' type for user nodes that holds a lua variable (can be set
246 * if a late lua node is set at the lua end the string value can be
247 a function as well which is then executed during serialization to
250 * Various small speedups
252 * Various smallish fixes to the node direct interface
254 * LPeg is now at version 0.12
256 * Some small fixes to the CFF (font) parsing
258 * Font file inclusion reporting messages on the terminal now
259 comply to the texconfig.trace_file_names setting
261 * Removed some of the additional luafontloader.info() return
262 information that was added in 0.78.2, but could not work
265 * new primitive \luafunction (see manual), with associated
266 lua.get_functions_table() function
268 * lua error message reporting has been altered a bit to make
269 the distinction between \directlua and other lua source code
272 * Additional pdf document data functionality in the 'pdf' table
273 has been cleaned up internally
275 * Additional pdf destination names can now be set via lua.
277 * New callbacks: finish_pdfpage, show_error_message,
278 show_lua_error_hook, start_file, stop_file
280 * Handling of \tracinglostchars is fixed
282 * Embedded metapost library version is now 1.900
284 * luajittex is now included in the distribution. One can use
285 buildjit.sh to build both luatex and luajittex, where
286 supported by the platform
288 * Synchronization with the TeXLive sources updated the following
290 * libpng is now 1.6.10
291 * poppler is now 0.25.2
293 ==============================================================
294 Luatex beta-0.78.2 was released 20140113 (4748)
295 ==============================================================
297 * Extended luafontloader's info() function to include data
298 from the 'pfminfo' and 'names' structure.
300 * Fixed a bug in the luafontloader library that made loading
301 some fonts extremely slow (LastResort.ttf)
303 * Removed a recent extension in the luafontloader library that
304 made loading fonts with lots of glyphs slow (ArialUnicoce.ttf).
305 Note: the extension made sure that there were no duplicate
306 glyph names in the font after loading.
308 * Restored --recorder output for lua files (dofile/loadfile/io.open)
310 * One-at-a-time pattern adding from lua used to require enormous
313 * luatex's fontloader.to_table() no longer reports 'altuni' table
314 information for alternates that are solely driven by the font
315 encoding. This fixes loading time issues for fonts that fill
316 encodings by copying a single glyph many times, like e.g.
317 LastResort.ttf from Apple.
319 * The datestamp no longer appears in any banners. The associated
320 \luatexdatestamp primitive is deprecated and will be removed
323 * Synchronization with the TeXLive sources updated the following
325 * cairo is now 1.12.16
326 * pixman is now 0.32.4
329 * poppler is now 0.25.0
331 * That same TL synchronization also fixes these issues:
332 * Always write "\nendstream" to the PDF for PDF/A-1b compliance.
333 * Large file support (>4GB) in Lua
334 * Big images could overflow on systems where sizeof(long)=4.
335 * In writing CID CFF fonts to the PDF, and end_dict() was missing.
336 * Unknown 'post' table versions (found in some broken ttf/otf
337 fonts) are now treated as-if they specified version 3.0.
338 * Fix crashes on 32-bit systems caused by bad C header inclusion
340 * Handle '--luac' and '--luaconly' properly
341 * luatex is now released under GPLv2+, not just GPLv2.
342 * luatex can now find .ofm metric files even if the extension
343 is not given explicitly.
345 * node.unset_attribute() was broken in 0.78.0
347 * The UTF-8 commandline patch from 0.78.0 for Win32 was removed
348 again (did not work properly)
350 ==============================================================
351 Luatex beta-0.78.0 was released 20131231
352 ==============================================================
354 * Instead of using expanded fonts, just calculate the expanded
355 width of glyphs where needed, and carry expand info in the
356 glyph nodes (all based on Hans' suggestions). All font expansion
357 functions are disabled and most are removed.
359 * New, faster (but limited) direct node access from lua, see
360 the manual for details
362 * Support for Apple Advanced Typography (AAT) information in
365 * Extended build script for mingw/msys (includes 64-bit support)
367 * Various patches from/via Akira Kakuta for better Win32
370 * Fixes for some bugs in de pdfscanner library (mostly related
373 * Maximum hyphenated word length is now 64Kb characters.
375 * Various patches from Khaled Hosny and Luigi Scarso for the
376 luafontloader subsystem
378 * Fix for a crash when re-dumping formats
380 * Fix for a Selene unicode library bug where some characters in
381 UTF-8 were incorrectly flagged as having the 'Space' property
385 ==============================================================
386 Luatex beta-0.76.0 was released 20130405
387 ==============================================================
391 * Small patches from TeXLive 2013, as well as an update to the
392 latest libraries (libpng, poppler, etc.)
394 * Speed up printing (of TeX strings) to the terminal and log.
396 * New lua function node.end_of_math().
398 * Fixed a memory leak in the lua function pdfscanner.scan().
400 ==============================================================
401 Luatex beta-0.75.0 was released 20130301
402 ==============================================================
406 * New expandable primitive \Uchar.
410 * New version of lnodelib.c with speedups by Hans and Luigi.
411 Also added some extra sanity checks to the Lua node field
414 * Support 'umath' in tex.extraprimitives(), so that formats can
415 make the \Umath* primitives unprefixed, now that they will be
416 provided by XeTeX as well.
418 * Removed a bunch of deprecated primitives
419 * \AlephVersion, \Alephrevision, \Alephversion, \Alephminorversion
420 * \OmegaVersion, \Omegarevision, \Omegaversion, \Omegaminorversion
421 * \omathcode, \odelcode, \omathchardef, \omathchar, \omathaccent,
422 \odelimiter, \oradical
423 * \Umathbotaccent, \Umathaccents
425 * Fix large file support.
427 * Fix Lua's loadfile().
429 * Removed the cidmap callbacks again (let that be done by user lua
430 code after the fact).
432 * Removed the fatal error on fonts where num_glyphs is too high,
433 as that problem is actually harmless.
435 * Some compilation issues under Win32 and Solaris resolved.
437 * Allow math extender objects to be zero width.
439 * The 'epdf' library has been extended to deal with finding and
440 saving embedded files (catalog:numEmbeddedFiles() and catalog:
441 embeddedFile, new EmbFile object).
443 ==============================================================
444 Luatex beta-0.74.0 was released 20121224
445 ==============================================================
450 There are no patches to the core Lua files; a future version
451 of luatex will switch to loading the regular lua 5.2 dynamic
452 library instead of depending on a statically compiled
455 * A bleeding-edge version of luasocket is included, as there
456 is no 5.2-compatible official release yet.
458 * A new lua extension is the two-argument version of
459 string.dump from Luajit:
461 string.dump(function f, [boolean strip])
465 * The implied existence of the following lua libraries is now
468 debug, unicode.*, luazip, lfs, lpeg, zlib, gzip, md5,
469 socket.*, profiler, epdf, fontloader, mplib, and
472 Future versions of luatex will load these modules on demand
473 from dynamic libraries.
475 Please update your sources to include a 'require' line for
476 each of the library modules mentioned.
478 * Two new callbacks: find_cidmap_file and load_cidmap_file
479 (used by the fontloader to discover .cidmaps)
481 ==============================================================
482 Luatex beta-0.72.0 was released 20121210
483 ==============================================================
487 * update various used libraries, including mplib 1.770,
488 poppler 0.21, libpng 1.5, and lpeg 0.10.2.
490 * new 'pdfscanner' lua library.
492 * various OpenType math fixes, including \Umathcharnumdef.
494 * improved placement of bottom accents.
496 * various other small fixes that have accumulated over the past
499 ==============================================================
500 Luatex beta-0.70.1 was released 20110519
501 ==============================================================
505 * fixed: recorder file location from TL (Akira).
507 * fixed: missing newline on 'No output' line.
509 * fixed: relative names in synctex file.
511 * fixed: 16bit png images in generated %!PDF-1.4.
513 * fixed: building with (installed) libpng < 1.5.0
515 * fixed: year in --version output.
517 * fixed: box output to synctex.
519 * fixed: FontDescriptor for non-embedded OpenType fonts has an
520 invalid FontFile3 entry (#654)
522 * fixed: crash on non-existent images.
524 * fixed: small memory leak in the ipc code.
526 * fixed: tex.print() and tex.sprint() don't recognize -2 as the
527 first argument (#659)
529 ==============================================================
530 Luatex beta-0.70.0 was released 20110506
531 ==============================================================
535 * fixed: various changes needed for libpng 1.5.2.
537 * fixed: node.fields() for nodes without subtype.
539 * fixed: non-argument use of os.execute().
541 * fixed: tex.[s|t|]print() with invalid catcode table arguments.
543 * fixed: recorder filename location with --output-directory.
545 * fixed: display alignment in TRT mode.
547 * luatex now uses the standard synctex files from Jérome Laurens.
550 ==============================================================
551 Luatex beta-0.66.0 was released 20110412
552 ==============================================================
556 * fixed: linebreak_filter doesn't do its default job when
557 tex.linebreak is used
559 * fixed: \escapechar ignored by \meaning
561 * fixed: wrong px default
563 * fixed: font kern attribute inheritance
565 * fixed: "nop" unrecognized in virtual fonts
567 * fixed: assertion failure in dviluatex when font ptmr8t used
569 * fixed: tex.settoks for with strings with embedded zeroes
571 * fixed: an indexing problem with nonexistent font glyphs
573 * fixed: some crashes and other bugs on the 'subtype' and 'prev'
574 fields (not all node types have those fields)
576 * fixed: crash on token.csname_id ("")
578 * fixed: initialize the statically allocated node's type ids
580 * fixed: fencepost error in math parameter counting
582 * fixed: math family numbers > 255 are allowed
584 * fixed: compilation failure on Hurd
586 * fixed: a small bug leading to displacements when reading
589 * fixed: \directlua followed by \pdfximage generates error if
592 * fixed: a problem with \vadjust pre in alignments
594 * fixed: a lua stack growing problem in the backend in 0.65.0,
595 resulting in an inability to create more than a few thousand
598 * fixed: inclusion of Scribus-generated pdfs
600 * adapt: the default form margin is now zero (was 1bp before)
602 * adapt: libpng 1.4.4, zzuplib 0.13.60, mplib 1.504
604 * adapt: small changes to the build system and new imports from
605 the texlive repository
607 * feature: new function node.currentattr() queries the current
608 active attribute list
610 * feature: Lua font loading; ignore unknown enumeration keys in
613 * feature: JPEG 2000 image support
615 * feature: continuing work on the 'epdf' library
617 * doc: the 'epdf' lua library is now documented
619 * doc: various other manual corrections
622 ==============================================================
623 Luatex beta-0.65.0 was released 20101213
624 ==============================================================
628 * The Aleph and Omega version primitives are deprecated.
630 * The Apple Snow Leopard Truetype font collections now work
633 * Libpng has been updated to 1.4.4, and zlib to 1.2.5.
635 * New lua functions node.next() and node.prev().
637 * The already deprecated for some time node.protrusion_skipable()
638 function has been removed.
640 * fontloader.apply_featurefile() and fontloader.apply_afmfile()
641 now return nil,<errortable> on failure.
643 * The various node list fields in the lua node interface have
644 been renamed from 'list' to 'head', e.g. tex.box[0].head,
645 and the 'list' name is deprecated. For now, the deprecation
646 is silent, as 'list' will stay for quite some time. Please
647 update your lua source as soon as possible, though.
649 * The call node.type(<node>) now returns "node". The existing
650 functionality is otherwise unchanged.
652 * Luafilesystem has been updated to 1.5.0. NOTE: there is an
653 incompatible change in the directory iterator method.
655 * The restriction on linebreak_filter has been eased: at least one
656 horizontal box should be returned, but that is not necessarily
657 the last node any more.
659 * Backward compatibility has been restored for \meaning\mathchar
661 * node.first_character() has been renamed to node.first_glyph()
662 to better match its actual functionality.
664 * The \Umathaccent primitive now supports both/bottom keywords,
665 and \Umathbotaccent / \Umathaccents are now deprecated.
667 * The \Umathaccent primitive now also supports the fixed keyword,
668 which supports non-growing math accents even if the font says
669 there are extensible variants.
671 * Ongoing work on the epdf library.
675 * Assignment to \dimen65535 was broken earlier.
677 * <box>.head.prev is now always initialized to null (0).
679 * luatex -lua=<script> '\relax' no longer exits immediately,
680 instead going into interactive mode as it should.
682 * The \jobname was initialized wrongly for input file names
683 with multiple dots in them.
685 * The synctex file is now written in the right place when
686 --output-directory is given.
688 * \letterspacefont could cause crashes, especially when combined
691 * Luatex would crash on linux32 systems if it was build in an
692 environment where LFS (>2GB files) was enabled by default.
694 * Node lists created by node.copy_list() could not be hyphenated
695 due to an assertion error.
697 * Synctex support was partially broken since 0.60.0.
699 * With OpenType math fonts, accents with multiple parts
700 (like the \vec arrow) forgot to include all parts if the
701 accentee was too narrow.
703 * With OpenType math fonts, accents over any class except 0 and 7
706 * kpse.lookup("plain", {all = true}) was broken in kpathsea
707 itself (no extension given as well as --all specified).
709 * A FontForge bug made Cambria Math accents look bad, and the
710 placement of math top accents did not allow a marker at the
711 origin (patches by Stefan Philipp)
713 * Cut&Paste from PDF was sometimes broken due to bad ToUnicode map.
715 * Many small manual improvements (thanks to Paul Isambert)
717 * An other bugfix to lpeg 0.9 (from Roberto Ierusalimsky)
719 * Some small fixes to writet1.w (from Han The Thanh)
721 * A build failure because of bad libz configuration on Win32
723 ==============================================================
724 Luatex beta-0.64.0 was released 20101112
725 ==============================================================
729 * New lua functions pdf.refobj(), pdf.maxobjnum() and pdf.objtype()
731 * New lua function node.is_node()
733 * The max_strings configuration variable's maximum value is
734 raised to be identical to texlive's maximum (2097151), and
735 same for param_size (32767).
737 * The embedded mplib is now 1.503.
739 * Minor cleanups in the output of fontloader.to_table():
741 - removed out-of-range altuni's from the output
742 - don't dump the extra encodings, just the actual font encoding
743 - export the encoding's name also as 'enc_name' at one level up
744 - no longer exporting unset macstyles, nor zero uniqueids
745 - fix creationtime and modification time
747 * Ongoing work on the epdf library
751 * Fix a bug where an explicit hyphen prevented hyphenation for the
752 whole rest of the paragraph
754 * Internal font copying forgot to copy the last font dimen
756 * os.selfdir() is now documented
758 * patch quad (\fontdimen6) in \letterspacefont to be compatible
761 * Multi-page pdf inclusion was very slow in 0.63.0
763 * Some extra checks added to the handling of glue_spec node
766 * Some node.prev pointers have been corrected (but this is not
769 * A small fix to lpeg 0.9.
772 ==============================================================
773 Luatex beta-0.63.0 was released 20100909
774 ==============================================================
778 * Drop tex.ht[], tex.wd[], tex.dp[].
780 * Drop OCP support (and associated primitives).
782 * Add tex.catcode[], tex.lccode[], tex.sfcode[], tex.uccode[],
783 tex.mathcode[] and tex.delcode[] and associated functions.
785 * Add CIDset tables to the output pdf where appropriate.
787 * Added a 'string' field to late_lua nodes on the lua side. This
788 field does not convert the assigned string to a tokenlist.
790 * The result of fontloader.open() now has some virtual accessors
791 (as well as fontloader.to_table).
793 * There is now a `short reference' in the manual folder
798 * Fix a crash on an empty font (bugreport #468).
800 * Fix a crash for extremely long pattern arguments.
802 * Fix a crash on bad virtual character arguments in lua.
804 * Fix hyphenation exceptions.
806 * Prevent linebreak between initial local_par paragraph whatsit
807 and a following skip (bugreport #437).
809 * Fix placement of scripts on textstyle big operators in MATH
810 fonts (bugreport #466).
812 * Fix a crash on the return value of MPlib's 'postscript'
815 * Fix a crash on \leftghost & \rightghost in math mode.
817 ==============================================================
818 Luatex beta-0.62.0 was released 20100823
819 ==============================================================
823 * LuaTeX now uses libpoppler (0.12.4) instead of xpdf.
825 * All backend functions now report what file they were searching
826 for whenever a file cannot be found.
828 * Input-ed lua files are now mentioned in the fls file if
829 the --recorder switch is specified on the command line.
831 * Paragraph indentation hlist nodes and hlist and vlist nodes
832 generated by alignment rows and cells now have a subtype
833 (3 for indent box, 4 for rows/columns, 5 for cells).
835 * The 'epdf' lib is in active development and still growing.
837 * The 'fontforge' table is finally removed (was deprecated
842 * A new mplib import fixes two bad bugs in mplib:
843 - string equality test was wrong
844 - type declarations could delete pre-existing variables
846 * PNG images with transparency could create random size
847 differences in the generated PDF.
849 * In some special cases, font expansion could cause wrong
850 spacing in the generated PDF.
852 * \letterspacefont was broken since a very long time.
854 * The node subtype of the \leftskip and \rightskip glues was
857 * Some memory leaks have been removed.
859 * Various manual fixes.
861 ==============================================================
862 Luatex beta-0.61.0 was released 20100728
863 ==============================================================
867 * New lua library 'epdf' for introspection of PDF inclusions,
868 see the manual for details.
870 * Mplib version 1.502 is now included (which is still beta,
873 * new "finish_pdffile" and "pre_dump" callbacks.
875 * new function pdf.pageref()
877 * In the lua 'tex' library: assignment to internal glue
878 parameters is now allowed.
880 * New lua function tex.error().
884 * Fix for crashes on fonts with bad Panose values.
886 * Fix for a box placement bug that could sometimes cause text
889 * Fix for a few small PDF/A1-a compatibility bugs.
891 * Fix \letterspacefont.
893 * Fix \Ustopdisplaymath in combination with aligned displays.
895 * In math delimiters, the last of a chain of predefined sizes
896 was always ignored if there were also extensible parts.
898 ==============================================================
899 Luatex beta-0.60.2 was released 20100701
900 ==============================================================
904 * Various small portability fixes, especially for non-gcc
907 * Updated synctex from Jerome Laurens.
909 * fix bug #406: \pdfliteral hinders hyphenation.
911 * fix pdf overprinting bug (related to \pdfliteral).
913 * patch from Akira Kakuto that ensures that only absolute commands
914 that are inside the %PATH% will be executed in win32's restricted
917 * fix a buffer overflow in luafontloader.
919 * fix cross-platform share-ability of generated formats.
921 * fix a few typos in the manual.
923 * fix trashing of the null glue spec by attribute reference code.
925 * documented the deprecated state and brokenness of otp processing.
928 ==============================================================
929 Luatex beta-0.60.1 was released 20100428
930 ==============================================================
934 * renamed node.skipable() to node.skippable().
936 * More git discovery patches in getluatexsvnversion.sh.
938 * Added --warnings=[no|min|yes|max|all] option to build.sh.
940 * While cross-compiling, build.sh now adds an extra linker switch
941 to allow win32 exes to use 3G instead of 2G of virtual memory.
945 * os.exec() & os.spawn() handled the environment differently from
946 os.execute() on Win32 (patch from Tomek)
948 * Builds with --enable-ipc were broken.
950 * Assigning and acquiring \fontdimen s from TeX code was broken.
952 * An initial attempt at fixing bug #372 (\predisplaydirection).
954 * An attempt to fix \eqno/\leqno placements in mixed direction
957 * Our local xpdf patch is reverted, it is not needed any more.
959 * The os.selfdir variable was not documented, as well as broken
962 * Fix "\input tikz hello \bye" bug, plus fix one sign error.
964 * Fix handling of lua script files with UNC names.
966 ==============================================================
967 Luatex beta-0.60.0 was released 20100404
968 ==============================================================
972 * os.name now knows about CYGWIN (from Elie Roux)
974 * Internal handling of direction specifiers is faster now.
976 * Each glyph node now has three new virtual read-only fields:
977 width, height, and depth (values in scaled points, of course)
979 * There are new functions node.protrusion_skipable() and
980 tex.badness() (useful for paragraph breaking in lua)
982 * Also new: tex.linebreak(). See the manual for details.
984 * All lua errors now report file and line numbers to aid in
987 * Import of metapost 1.211.
989 * pdf.pdfcatalog will be replaced soon by the new pdf.catalog
990 pdf.pdfinfo will be replaced soon by the new pdf.info
991 pdf.pdfnames will be replaced soon by the new pdf.names
992 pdf.pdftrailer will be replaced soon by the new pdf.trailer
994 * pdf.pdfmapfile and pdf.pdfmapline are replaced by the new
995 pdf.mapfile() and pdf.mapline() functions. (a function interface
996 fits these parameters better because they never return anything).
998 * New read-write lua variables: pdf.pageattributes, pdf.pageresources,
1001 * getluatexsvnversion.sh now correctly detects git-svn and still
1002 manages to find a valid SVN revision number (from Patrick Gundlach)
1004 * Many of the source files have been converted to CWEB.
1008 * GNU libtool is now used to solve the various technical issues with
1009 dynamic loading of lua modules.
1011 * Error detection in scan_integer_part was wrong due to missing
1012 initialization of OK_so_far (spotted by Javier Mugica)
1014 * Synctex was broken in 0.51-0.52.
1016 * \lastlinefit was broken since ... well, nearly forever.
1018 * Reading of binary files with length zero was broken.
1020 * Trapping of unitialized rules (this was for sloppily created
1021 rule nodes from lua)
1023 * pdf.immediateobj('streamfile') was broken on 64-bit platforms.
1025 * tex.linebreak did not take the given left and right skip, but
1026 instead used the current TeX-side values (bug #356).
1028 * the found 'MAKE' command in build.sh is now fed into configure to fix
1029 problems with that not finding GNU make even when it is actually
1032 * dofile(<nil>) and loadfile(<nil>) in batch mode now give an
1033 error and continue instead of pointlessly waiting for user input.
1035 * Reverted commit #3417 (the buildpage experiment) as it causes bad
1036 things to happen when items are waiting during page breaks.
1038 * Overrule loaders[4] in --safer mode, make require() behave
1039 closer to normal lua 5.1, and add some nicer error messages
1040 (based on an email and patches from Manuel Pegourie-Gonnard)
1042 * Added an extra sanity check for GDEF loading in luafontloader,
1043 based on a crash caused by Linux' AkaashNormal.ttf.
1046 ==============================================================
1047 Luatex beta-0.52.0 was released 20100316
1048 ==============================================================
1052 * Various small manual improvements.
1054 * A better version of getluatexsvnversion.sh, from Tomek.
1056 * node.copy_list() now allows the second (optional) argument to
1059 * An import of the current state of the texlive repository
1060 (kpathsea and build system).
1064 * An attempt fix for bug #345 (math kerning is not perfect): when the
1065 current math font is a new math font, check against \catcode <cur_c>
1066 == 11 to suppress the italic correction, instead of looking at
1067 the value of space(<cur_f>).
1069 * There is a new <tfmtable> key: 'units_per_em' (defaults to 0).
1070 This is part of a fix for bug #200 (Problem with CFF fonts having
1071 em-size other than 1000): there is a special correction to the
1072 embedded cff font itself and the font scale if the font to be output
1073 is opentype or type1 in unicode encoding and the 'units_per_em
1075 <tfmtable>.units_per_em has to be passed back to luatex from
1076 the lua font loading code for this to work.
1078 * A fix for bug #314 (problem with pk file).
1080 * lua code can no longer change the internal preallocated glue_spec
1081 nodes (as that resulted in weird spacing bugs). For this, glue_specs
1082 now have a new field: 'writable'. If that field is false, a copy
1083 has to be made of the glue_spec instead of doing an assignment
1086 * Setting of \textdir inside the output routine could trash output
1087 on following pages due to a lingering internal variable.
1089 * \pdfthread crashed because the arguments were handled in reverse
1092 ==============================================================
1093 Luatex beta-0.51.0 was released 20100312
1094 ==============================================================
1098 * Various small manual improvements.
1099 * The backend message "cannot open Type 1 font file for reading"
1100 now reports which Type1 font it was looking for.
1101 * Fontforge clears some font names at loading time that will be
1102 refilled in at font generation time, but the fontloader should not
1103 do that. Patch from Khaled Hosny.
1104 * New synctex code imported from TeXLive.
1105 * luamd5/md5.h is renamed to luamd5/luamd5.h to avoid confusion.
1106 * Embedded mplib is now 1.209.
1107 * Some experimental tweaking of buildpage_filter, see the manual
1109 * Luatex now detects kfreebsd (from Alan Braslau)
1110 * The new lua function tex.sp() converts a string to a number
1111 representing scaled points.
1112 * There is now support for revision numbers in the banner and stats
1114 * The command line help and manual documentation page is extended.
1115 * node.hpack() now also accepts "cal_expand_ratio" and "subst_ex_font"
1117 * node.hpack() and node.vpack() now give back the badness of the box
1118 as second return value.
1119 * node.copy_list() now allows a second (stop) argument, this stopper
1121 * new lua functions in lfs: lfs.readlink() and lfs.shortname().
1122 * new lua function tex.tprint() that can combine multiple catcode
1123 regime prints in one function call.
1124 * new lua sub-table: tex.nest[] (read/write access to the semantic
1126 * New lua functions in kpse: kpse.lookup() and kpse.version(). See
1127 the manual for more details.
1128 * New lua function tex.shipout().
1132 * There problems in the pdf output for Type3 (pk) fonts.
1133 * Fix a bug that allowed bad commandline quoting.
1134 * Fix a bug that sometimes caused crashes when \pdfprotrudechars.
1135 * The build script now exports CONFIG_SHELL to avoid problems with
1137 * The was a bug in the generated /Image /ProcSet.
1138 * status.font_bytes reported the wrong value.
1139 * Lots of compiler warnings are removed (thanks Javier Mugica).
1140 * Patch to fontloader.info() to accept filenames with embedded
1142 * Fix a \write error with docstrip package.
1143 * Fixed a crash on AdobeMyungjoStd-Medium.otf.
1144 * Fix coco stack overflows, needed for lpeg.
1145 * \pdfcompresslevel wasn't initialized for early immediate objects.
1146 * Fix for slanted fonts when HZ was on (slant angle was multiplied).
1147 * When concatenating content streams, put a space between them.
1148 * Allow pfb lines to end with \r as well as \n (for msam10.pfb).
1149 * Fix the internal string->scaled point conversion in the lua
1151 * Memory leaks in the fontloader removed, thanks to patches from
1153 * Fix a crash caused by the combination of coroutines and font.each().
1157 * Support for Type3 .pgc files (nobody used them).
1159 ==============================================================
1160 Luatex beta-0.50.0 was released 20091224
1161 ==============================================================
1165 * Fonts now listen also to the 'extend' key in the lua font
1166 metrics table, and the processing for this is done via de
1167 pdf text matrix instead of via the font matrix, which means
1168 it now works for all font types.
1170 * The embedded Metapost library is now at version 1.209.
1174 * It is no longer possible for fonts from embedded pdf files
1175 to be replaced by / merged with the document fonts of the
1176 enveloping pdf. This regression may be temporary, depending
1177 on how the rewritten font backend will look after beta 0.60.
1181 * Use of \middle confused the \mathstyle operation.
1183 * \pdfcolorstack handling was broken.
1185 * node.unset_attribute() had a bug whereby it inverted the
1186 requested result in some cases (the node on which the unset
1187 was called was sometimes the only node at the current level
1188 that *kept* the attribute).
1190 * During font expansion, the internal font copy had one character
1191 information object less than the original, resulting in the
1192 disappearance of a glyph in some fonts when font expansion
1195 * Placement of operator scripts of OT MATH fonts is adjusted
1196 to be conformant with Word's logic where the italic correction
1197 is only used to tuck in the subscript and for nothing else.
1199 * luafontloader.open() no longer writes directly to stderr in
1200 case of internal font errors.
1202 * Any <pdf_refobj_node>.objnum could not be assigned to.
1204 * The lua 'pdf' table could not be assigned to.
1206 * The lua 'md5' library was returning incorrect results on
1207 64-bit architectures.
1209 * Luatex now compiles on GNU Hurd systems.
1211 * Fix segfault when embedding stream file object (these
1212 backend segfaults were a side-effect of the string pool
1215 ==============================================================
1216 Luatex beta-0.47.0 was released 20091218
1217 ==============================================================
1221 * New read-write lua variables pdf.pdfcatalog, pdf.pdfnames,
1222 pdf.pdfinfo, pdf.pdftrailer
1224 * The horizontal mode nodes that are added to lines during line
1225 breaking now inherit the attributes from the first and last node
1226 inside the created line.
1228 * The new function pdf.registerannot(<number>) registers an
1229 annotation object number to be included in the current
1230 page's /Annots list.
1232 * The variables <metrics>.Mathconstants.FractionDelimiterSize
1233 and <metrics>.Mathconstants.FractionDelimiterDisplayStyleSize
1234 are added to the font table. This allows proper setting of the
1235 size parameters for TeX's ...withdelims math primitives.
1237 * The internal representation of the string pool is reorganized
1238 (the pool of string characters is now allocated dynamically),
1239 and as a side-effect the lua variable status.init_pool_ptr
1240 is deprecated and will be removed in a later version. Also,
1241 status.pool_ptr now simply returns the current number of bytes
1242 in use for string characters.
1244 * There are new lua variables pdf.pdfmapline and pdf.pdfmapfile
1245 (write-only strings that mimic \pdfmapline and \pdfmapfile).
1247 * \pdfobj data and attribute are now stored as C strings instead
1248 of as token lists (this should speed up cases with a lot of data).
1250 * Artificially slanted fonts now work via the pdf text matrix
1251 (instead of adjusting the actual font) so that it now also
1252 works for non-Type1 fonts. The lua <metrics>.slant font key is
1253 now obeyed in all cases.
1255 * The lua function font.id(<string>) returns the internal font id
1256 number belonging to a control sequence name.
1258 * Pdf image inclusion is optimized such that objects from an
1259 external pdf will now be included only once even if they are
1260 referenced from multiple inclusions.
1264 * Protrusion for non-TLT documents did not work properly for
1265 the hyphenation character.
1267 * \lastbox could not remove the paragraph indent box for non-TLT
1270 * Pdf images (\pdfximage) are no longer kept open during the
1271 whole run, but closed and reopened. An error is raised if
1272 the file has changed between \pdfximage and \pdfrefximage.
1273 This prevents the 'too many open files' error when lots of
1274 images are included.
1276 * On Win32 Pdf image files are locked during the time that it is
1277 open, to prevent unnoticed file changes by external sources.
1279 * Compilation now again works on FreeBSD.
1281 * Format sharing between 32-bit and 64-bit architectures was
1284 * Unsetting attributes from lua could sometimes result in
1285 the unset state persisting beyond the current group level.
1287 * If something went wrong in the scanning of pdf action items,
1288 the error message reported the current primitive name
1291 * Luatex would crash on non-existant pdfs that were referenced
1292 from map file entries.
1294 ==============================================================
1295 Luatex beta-0.46.0 was released 20091126
1296 ==============================================================
1300 * The build.sh script now has better support for new MacOSX-es
1303 * Luatex now has experimental support for dynamic loading of
1304 external compiled lua libraries. Building luatex and loading
1305 external .so/.dll files is reported to work on Windows,
1306 linux and osx, other platforms are still unknown.
1308 * pdf.obj{type="stream"} no longer converts its argument to and
1309 from a tokenlist. This allows the use of binary data in the
1310 "string" argument. Such data does still have to hidden from
1311 the normal file parser by putting the code in a dofile()
1312 or by using string.char(), though.
1316 * Luatex 0.45.0 was not able to find truetype nor opentype fonts
1317 if there were no callbacks defined (patch from Pawel).
1319 * 0.45.0 printed the user input instead of the full pathname
1320 for \input-ed tex files.
1322 * The TFM reader now rejects fonts with tfm names that are
1323 longer than 255 characters because such font names cannot
1324 be stored in a DVI file.
1326 * The combination of \immediate\pdfxform followed by a later
1327 \pdfrefxform could cause broken pdf output files because
1328 the box used for the form could have been freed and even
1329 reused already at that moment in time, sometimes resulting
1330 in an invalid transformation matrix.
1332 * The placement of super- and subscripts for displaystyle
1333 \int's in CambriaMath is now better than before. It still
1334 needs a tweak to the metrics though: in the current version,
1335 the italic correction has to be substracted from the width
1336 of the integral sign to get correct placement (context mkiv
1337 does this). to be continued ...
1339 ==============================================================
1340 Luatex beta-0.45.0 was released 20091118
1341 ==============================================================
1345 * Loading big OTF fonts via lua is now much faster than before,
1346 at the expense of a bit of precision loss in the calculated
1349 * Two new token lists are provided: \pdfxformresources and
1350 \pdfxformattr, as an alternative to \pdfxform keywords.
1352 * \input and \openin now accept braced filenames.
1354 * The \endlinechar can now be set to any value between 0 and 127.
1356 * Luatex can now optionally use kpathsea to find lua require()
1359 * The new primitives \aligntab and \alignmark are aliases for
1360 the use of & and # in alignments.
1362 * \pdfrefximage [width <dimen>] [height <dimen>] [depth <dimen>] <imageref>
1363 overrules settings from \pdfximage for this \pdfrefximage call only
1365 * The print precision for small numbers in lua code (tostring)
1368 * Akira Kakuto suppled a patch that restricts writing to files
1369 with names such as latex.bat etc. (on windows only)
1371 * (un-feature): from now on luatex now only handles 4 direction
1372 specifiers: TLT (latin), TRT (arabic), RTT (cjk), and LTL
1373 (mongolian). The other directions now generate an error.
1375 * (un-feature): xpdf's automatic lower- and uppercasing retry attempts
1376 for nonfound image pdf files has been removed.
1378 * The callbacks hpack_filter, vpack_filter and pre_output_filter
1379 pass on an extra string argument for the direction, when known
1380 (nil == use default).
1382 * The lua functions node.hpack(), node.vpack() and node.dimensions()
1383 now accept an optional direction argument (not given == use default).
1385 * \pdfrefxform [width <dimen>] [height <dimen>] [depth <dimen>] <formref>
1386 scales a form object; similar principle as with \pdfximage: depth alone
1387 doesn't scale, it shifts vertically.
1389 * A change to the relative ordering inside font name discovery for use
1390 by the backend: now it tries <f>.psname first, as that is much less
1391 likely to contain spaces.
1393 * For ttc fonts, now the used subfont name and its index id are printed
1394 to the terminal, and if the backend cannot find a ttc subfont, the
1399 * Prevent crashes for lua-loaded fonts without a (tfm) name.
1401 * Remove spurious newlines in the output pdf that could be the
1402 result of using \pdfximage for an included pdf figure too early.
1404 * Full font embedding for wide otf and ttf fonts now really
1405 works (older versions only pretended that it did work).
1407 * node.dimensions() sometimes continued past the 'stop' node.
1409 * Images inside virtual fonts were broken.
1411 * The processing of \language=-1 was wrong, resulting in
1412 hyphenation attempts even though there was no proper language
1415 * Fix for finding files in --output-directory.
1417 * Fix for handling of --file-line-error.
1419 * tex.box[] assingments are now checked to make sure the assigned
1420 node has the right id (hlist or vlist).
1422 * show_node_list (as in \showbox) produced spurious local_par
1423 whatsit prints in the output after direction nodes.
1425 * The handling of pdf literals has been sped up.
1427 ==============================================================
1428 Luatex beta-0.44.0 was released 20091027
1429 ==============================================================
1433 * libpng is now 1.2.40.
1435 * hlist nodes now have a subtype to distinguish hlists generated
1436 by the paragraph breaking, explicit \hbox commands, and other
1437 (as-yet-undefined) sources.
1439 * \pdfobj now has an extra optional keyword: 'uncompressed',
1440 which forces the object to be written to the PDF in plain
1441 text (see the manual for the exact details).
1443 * The lua file from the luamd5 library (which provides the
1444 md5.hexsuma() function) is now embedded in the executable.
1448 * \latelua now works in DVI mode again.
1450 * status.output_file_name could crash when used too soon.
1452 * In 0.43, rules were not output at all in DVI mode.
1454 * \leavevmode\penalty-10000\penalty-10000 crashed luatex.
1456 * the API of margin kern nodes to lua was using the wrong
1457 fields in the nodes.
1459 * A few fixes to the manual.
1461 * PDF Xref stream dicts were slightly non-conformant.
1463 * There was too much space between two consecutive math displays
1464 (this bug was inherited from Aleph)
1466 * Synctex was broken (thanks, Akira)
1468 * Font mark classes were handled incorrectly by the fontloader
1471 * There was a crash possible with certain types of named PDF
1474 * Math delimiters and large operators in new MATH fonts no
1475 longer apply the italic correction (this fixes placements
1476 of super- and subscripts on such items for those fonts).
1478 * The converter from lua strings to token lists (for the node
1479 interface) sometimes generated invalid tokens.
1481 * CFF (OpenType) fonts now listen to 'embedding="full"'. TTF
1484 * Font tables with 'embedding="no"' would cause luatex to crash.
1486 * \pdfobj file {} failed to find the file if there was no lua
1489 * An optimization in MS Mincho caused luatex to crash.
1491 ==============================================================
1492 Luatex beta-0.43.0 was released 20090819
1493 ==============================================================
1497 * There is a new allowed key in the table trhat is returned
1498 by lua-loaded fonts: <f>.psname. This value should be set
1499 to the original PostScript font name of the font. Fonts inside
1500 dfont and ttc collections are fetched using this field
1501 (if it is missing, <f>.fullname will be used instead).
1503 * It is now possible to use Apple dfont font files
1504 (those that contain at least one outline font).
1506 * \latelua is now allowed inside leaders.
1508 * There is a new callback: process_output_buffer, from Manuel
1509 Pégourié-Gonnard. This callback is called just before
1510 \write acts, so it can be used to alter the file encoding
1511 of text output files.
1513 * There is a new node.dimensions() function, which calculates
1514 the natural size of (part of) a list of nodes.
1516 * The new primitive \gleaders provides 'globally aligned'
1519 * The DVI and PDF backends now share much code internally.
1521 * The embedded MPlib is now 1.207.
1523 * libpng is now 1.2.39.
1527 * We fixed lots of anonymous bugs introduced in 0.42.0 (as expected)
1529 * fontloader.info() errors are no longer fatal, the function now
1530 just returns a nil,"error string" pair.
1532 * Automatically inserted kerns for \accents are now once again
1533 valid word ends, as in \TEX.
1535 * Fixed the placement of math displays in mixed direction
1538 * The \pdfcompresslevel is now dynamic again.
1540 ==============================================================
1541 Luatex beta-0.42.0 was released 20090717
1542 ==============================================================
1544 * There is a new node.tail() function
1546 * lua-loaded fonts now support a 'nomath' key to speed up
1547 loading the lua table.
1549 * A bugfix in the ttf reader for the inclusion backend, and
1550 (also in the backend) support for treating ttc files by
1551 pretending they are single ttf fonts (both patches from pdftex)
1553 * Add Khaled Hosny's man page to the repository
1555 * The \pdfcompresslevel is now effectively fixed as soon as
1556 output to the pdf file has occurred.
1558 * Patched status.filename so that it (nearly) always returns a
1561 * fix '\the\delcode' and disable '\the\odelcode', '\the\Udelcode',
1562 and '\the\Udelcodenum'
1564 * Handle jfifs where either xres or yres is 0 and the other
1565 res is != 0 (from pdftex)
1567 * The single-argument version of lang.hyphenate() was broken.
1569 * Get rid of the \directlua/\latelua number warning.
1571 * The Lua coroutine patch (coco) is now disabled on linux
1572 powerpc architectures (because it caused crashes)
1574 * Removed obsolete pdftex primitives:
1575 \pdfoptionalwaysusepdfpagebox
1576 \pdfoptionpdfinclusionerrorlevel
1580 * The loading speed of large fonts (especially ttf) via the
1581 fontloader library, and the inclusion speed for subsetting
1582 in the backend have both been improved.
1584 * The 'pdf' lua library has been enhanced with various new
1585 functions, see the manual for details.
1587 * BLT and BRT glyph position fixed.
1589 * Various fixes for synctex offsets.
1591 * Support for exotic font string encodings has been removed
1592 from the fontloader library.
1594 * The embedded MPlib is now 1.205.
1596 * libpng is now 1.2.38.
1598 ==============================================================
1599 Luatex beta-0.40.6 was released 20090625
1600 ==============================================================
1602 * Fix two string vs. toks bugs in the lua node interface:
1603 whatsit,annot and whatsit,startlink data assignments were
1604 made directly as strings instead of being converted to tokens.
1606 * Sometimes pdf.print() could be used before the proper structures
1609 * There was a bug in the type codes for the lua package filter
1610 callback: wrong extra info was passed to lua for the alignment
1613 * The math parameters \Umathlimitdownvgap, \Umathlimitdownbgap,
1614 and \Umathlimitdownkern have been renamed to \Umathlimitbelowbgap,
1615 \Umathlimitbelowvgap, and \Umathlimitbelowkern to be more
1616 consistent with the other parameter names.
1618 * The embedded MPlib is now 1.204.
1620 * Handling of UTF-8 hyphenation exceptions has been fixed.
1622 * There were a number of typos in the manual.
1624 ==============================================================
1625 Luatex beta-0.40.5 was released 20090610
1626 ==============================================================
1628 * One of the internal print functions accidentally encoded its
1629 argument string to UTF-8 even though it was already UTF-8.
1631 * Some of the log and terminal UTF-8 output was gibberish.
1633 ==============================================================
1634 Luatex beta-0.40.4 was released 20090609
1635 ==============================================================
1637 * \the\textfont0 returned a number instead of doing a font
1640 * The embedded MPlib is now 1.203.
1642 ==============================================================
1643 Luatex beta-0.40.3 was released 20090608
1644 ==============================================================
1646 * A set of portability fixes for the AIX compiler from Vladimir
1649 * A set of fixes to the synctex support.
1651 * A patch to the build script to prevent installed X11 headers
1652 from being required.
1654 * Some weave (web syntax) fixes from Manuel Pégourié-Gonnard.
1656 * A simplification in luatex.ch (it is now less verbose
1657 about the web2c-specific extensions) from Karl Berry.
1659 * A fix in the handling of UTF-8 (input) file names.
1661 * Hyphenation exceptions were case sensitive in 0.40.2.
1663 * libpng is now 1.2.37.
1665 ==============================================================
1666 Luatex beta-0.40.2 was released 20090603
1667 ==============================================================
1669 * Fix for a compilation warning under Cygwin.
1671 * A complicated bugfix by Hartmut for a rounding problem in the
1672 VF loading that resulted in 'character width mismatch in font
1673 XY.vf ignored' messages at large load sizes
1675 * The embedded MPlib is now 1.202.
1677 * The post_page_number callback was accidentally run when
1678 shipping out xforms as well as during actual pages.
1680 * When a math accent char doesn't have a bot_accent placer,
1681 luatex now uses the top_accent placer, if present.
1683 * A crash caused by \Uroot .. {<list>}{...} is fixed
1685 * A portability fix for solaris 8 sparc using sun studio
1686 compiler, and one for glibc > 2.9.90
1688 * luatex -ini now sets the \catcode of the BOM character to
1691 * Kpathsea is updated from TeXLive, giving four extra types of
1692 searchable files: 'font feature files','cid maps','mlbib',
1695 * libpng is now 1.2.36
1697 ==============================================================
1698 Luatex beta-0.40.1 was released 20090508
1699 ==============================================================
1701 * Vertical placement of root radicals and degrees is fixed.
1703 * The use of \pageleftoffset could deviate from \hoffset
1706 * LuaTeX now issues a warning if \pagedir !- \bodydir during
1709 * The previous crash in font.read_tfm() was still not quite
1712 * The Web2C version is now also printed in the --version
1713 and --credits output.
1716 * There is a new MPlib 1.200 release candidate with a few minor
1719 * The xpdf library is updated to patch level 3.
1721 * New imports to the build system, from texlive. In particular,
1722 there is now configure-level support for building with
1723 libpoppler and support for building under cygwin 1.7 is added.
1725 ==============================================================
1726 Luatex beta-0.40.0 was released 20090422
1727 ==============================================================
1729 * The embedded MPlib is updated to version 1.200.
1731 * Texlua would crash if run font.read_tfm() was used.
1733 * Luatex would crash on empty \patterns.
1735 * Lots of small C code cleanups.
1737 * \textdir inside a \hbox dir *** was wrong earlier.
1739 * 0.39.0 introduced a bug that would make luatex crash whenever
1740 font expansion was used.
1742 * Font tables returned by define_font can now have a key named
1743 'cache' that controls the internal lua font table caching.
1745 * There is no longer a need for an explicit --progname if there
1746 is no input file given.
1748 ==============================================================
1749 Luatex beta-0.39.0 was released 20090415
1750 ==============================================================
1752 * iniluatex will from now on start up with only the TeX82 primitives
1753 and \directlua, everything else has to be bootstrapped via
1754 tex.enableprimitives(). This change was planned for 0.40.0,
1755 but *now* is the time to test it.
1757 * A bugfix for \primitive in various expandable contexts,
1758 and \primitive now generates an error message when the
1759 argument is not actually a primitive's name.
1761 * There was a bug found in the math accent handling.
1763 * Large math operators are now treated like extensible characters
1764 in the sense that they can be composed of segments.
1766 * The extra assign- and restore tracing information from eTeX
1767 had a massive bug because of a dangling else in the pascal web.
1768 As a side-effect of fixing this bugs, all such potential errors
1769 in the pascal web have been fixed (for now).
1771 * The math parameters can now be set and queried from lua code
1772 via the new tex.setmath() and tex.getmath() functions.
1774 * Reflection in a \hbox was broken.
1776 * There was a leak of direction nodes in the paragraph builder.
1778 * The font backend now does a small peek to differentiate
1779 truetype and postscript style opentype fonts. This fixes
1780 the "Can't find CFF table" bug for otf's with truetype outlines.
1782 * Parameters and registers can now also be assinged to globally
1783 from lua (see the manual for details).
1785 * It is now possible to query the current math style while a
1786 formula is still being constructed by using the new read-only
1787 value \mathstyle. Associated is the new command \Ustack that
1788 is to be used as a prefix for {.. \over ..} and friends.
1789 See the manual for more information.
1791 * The embedded MPLib is brought up to date with the current
1792 metapost repository (version 1.110 and a few small patches).
1794 * Luatex can now handle two breakpoints inside a single ligature
1795 (like for the functional word of-f-ice). The solution is not
1796 perfect yet, but the chance of missed hyphenation points in
1797 actual documents should now be negligible.
1799 * Some speedups in the font loading code, and in the handling of
1800 pdf_literal nodes that are set from within Lua code.
1802 * Some source code and manual cleanup, as usual.
1804 ==============================================================
1805 Luatex beta-0.38.0 was released 20090410
1806 ==============================================================
1808 * tex.enableprimitives() had a bug were previously defined (but
1809 currently undefined) control sequences prevented the creation
1812 * The special calling format callback.register('name', false)
1813 not only disables the callback, but also the builtin code it
1814 is supposed to replace.
1816 * Empty \localleftbox and \localrightbox -es are now suppressed.
1818 * Support for <f>.MathConstants.SubscriptShiftDownWithSuperscript
1819 was added, to solve the lack of "sub2" in OpenType math.
1821 * Luatex now supports horizontal super- and subscript placement
1822 corrections via the OpenType MATH mathkern table. See the
1825 * node.write() no longer copies its argument node list before
1828 * There are six new primitives that are verbose forms
1829 of one and two byte special tokens:
1830 \Usuperscript \Usubscript
1831 \Ustartmath \Ustopmath
1832 \Ustartdisplaymath \Ustopdisplaymath
1834 * The attribute node leaks in math mode and alignmetns have been
1837 * The 11 simple math noads are now combined into a single "noad"
1840 * Static linking against libstdc++ is working once again.
1842 * There is a small fix in the keyword scanner to solve the
1843 problem of 'Runaway ... while scanning ???' that could happen
1844 for some primitives.
1846 * Lua now also has the "architecture independent bytecode"
1849 * Lua is updated to version 5.1.4 with coco patches 1.1.5, and
1852 * Some TRT/TLT backend bugs are fixed.
1854 * Various manual updates.
1856 ==============================================================
1857 Luatex beta-0.37.0 was released 20090331
1858 ==============================================================
1860 * Luatex now implements shell_escape = 'p', a new feature
1861 in web2c that intends to make \write18 more secure. As
1862 a side-effect, if luatex is used for typesetting, it will
1863 now also apply shell_escape = 'p' and shell_escape = 'f'
1864 to the lua functions io.popen(), os.execute(), os.exec(),
1866 Nothing has changed for the case where luatex is used as
1867 a script interpreter.
1869 * Attributes can now have negative values. The special value
1870 for 'unset' is lowered to -0x7FFFFFFF (it used to be -1).
1872 * The lua 'kpse' library now has an object-oriented interface
1873 as companion to the procedural interface. This is useful for
1874 e.g. controlling the discovery of mplib files.
1876 * The new internal integer parameter \outputbox allows setting
1877 of the output box number (default: 255, max: 65535)
1879 * The new primitives \Udelimiterunder and \Udelimiterover
1880 complete the set of 'StretchStacks' for OpenType Math.
1882 * Fixed a bug in font string conversions on the Macintosh that
1883 resulted in warnings about 'unaligned pointers being freed'.
1885 * Khaled Hosny spotted a bunch of manual errors.
1887 * There was bug in the width of math_accent objects when
1888 there were super- or subscripts attached to the accentee.
1890 * In PDF mode, TRT \leaders were bugged.
1892 * The source tree now uses the new texlive build system that
1893 Peter Breitenlohner created.
1895 * There is now a single build.sh instead of four separate
1896 ones. It has a few options:
1897 --make : only make, no make distclean; configure
1898 --parallel : make -j 2 -l 3.0
1899 --nostrip : do not strip binary
1900 --mingw : crosscompile for mingw32 from i386-linux
1901 --ppc : crosscompile for ppc osx on intel osx
1903 Note: --parallel still sometimes causes crashes due to
1904 timing errors, so use that option with care.
1906 * Many compiler warnings have been removed (but not all yet).
1908 ==============================================================
1909 Luatex beta-0.36.0 was released 20090323
1910 ==============================================================
1912 * The included fontforge code is stripped considerably, and
1913 the lua table to access the code is renamed to 'fontloader'.
1914 The old name ('fontforge') will remain present for a while,
1915 but will eventually go away.
1917 * New lua functions: tex.primitives(), tex.extraprimitives,
1918 tex.enableprimitives(). This is a prelude to a big change
1919 in the next beta: iniluatex will from now on start up with
1920 only the TeX82 primitives and \directlua, everything else
1921 has to be bootstrapped via tex.enableprimitives().
1922 See the manual for more details.
1924 * Support for multiple lua states has been removed, and at the
1925 same time support for adding name ids to lua chunks has been
1926 added. See the manual for more details.
1928 * More changes to the PDF backend to make it support non-latin
1929 directions (form and image placement, vertical typesetting,
1932 * The kpathsea library is updated. Highlights: cleaner build
1933 process (thanks to Peter Breitenlohner), cleaner mingw32
1934 (cross)compilation support, and a new reentrant API.
1936 * Some possible endless loops within extended delimiters in
1937 math mode are now trapped.
1939 * Movements inside VF font characters were considerably off
1940 due to a wrong conversion routine.
1942 * Error handling for \outer has been reinstated, but can be
1943 suppressed via the new primitive \suppressoutererror.
1945 * The new primitives: \suppresslongerror and \suppressifcsnameerror
1946 that can be used to suppress errors for \par in non-long macros
1947 and for non-expandable objects inside \ifcsname ... \endcsname,
1950 * New lua function: node.vpack() via a patch from Khaled Hosny
1951 that also improves error handling in node.hpack().
1953 * Fix the typo that caused \charic (instead of \charit)
1954 to be defined as a primitive.
1956 * Suppression of hyphenation via \hyphenchar\font=-1 now works
1959 * The lua functions tex.print(), tex.sprint(), tex.write() now
1960 accept an array of strings as well as vararg list of strings
1963 * A change to be build process: luatex.p is no longer split
1964 int smaller pieces before running the C compiler.
1966 * Melissa O'Neill contributed a bugfix to the Type1 font
1969 * A bunch of smaller bugfixes and cleanups (as usual).
1971 ==============================================================
1972 Luatex beta-0.35.0 was released 20090224
1973 ==============================================================
1975 * The math handling portions of LuaTeX are converted to C code,
1976 and extended to support Unicode math. There are a great many
1977 related changes, see the new Math chapter in the manual for
1980 * A nasty bug in the paragraph breaking routine was fixed.
1981 (All lines except the first one were believed to be wider then
1982 they really were. This affected which nodes were considered
1983 as active breakpoints)
1985 * Various changes to the PDF backend to make it support non-latin
1988 * Fixed the behaviour of the page offsets. Placement of the output
1989 on the physical page should now work correctly in all directions,
1990 both in DVI and PDF.
1991 There now are \pageleftoffset and \pagetopoffset primitives,
1994 * fontforge.apply_featurefile() was broken since 0.31.0
1996 * The lua profiler library is added.
1998 * The included lua filesystem library is now 1.4.1.
2000 * Reading of pk files fixed.
2002 * An optional space afer a <direction specifier> for \textdir c.s.
2003 is ignored from now on.
2005 * \bodydir and \pagedir can now be (re)set even after the first
2006 page has been output.
2008 * The new callback mlist_to_hlist can be used to intercept the
2009 normal conversion of math lists to horizontal lists.
2011 * The programs ttf2afm and pdftosrc are removed from the luatex
2012 distribution (these belong to pdftex).
2014 * fontforge.open() now uses much less memory when opening large
2017 * The included libpng is now 1.2.35.
2019 * Quite a lot of smaller bugfixes and cleanups (as usual).
2022 ==============================================================
2023 Luatex beta-0.31.3 was released 20081229
2024 ==============================================================
2026 This release has a bunch of updates from the development trunk
2027 (#1657-1670,1677,1678,1680,1685,1687).
2029 * Closing of files opened by \externalocp.
2031 * Fix for a locale-related bug that make PDF generation fail
2032 with a "Parsing CFF Dict failed" message when including
2035 * The included metapost is now version 1.102.
2037 * PDF rules in vertical modes in RL direction where output
2038 in the wrong direction
2040 * Fix for a crash on Apple fonts that contain a 'bsln' table.
2042 * The handling of the second argument to fontforge.open() was
2045 * The included libpng is now 1.2.34
2047 * Handling of ttc files on Windows was broken
2050 ==============================================================
2051 Luatex beta-0.31.2 was released 20081209
2052 ==============================================================
2054 Besides fixing building issues, this release has
2056 * A small fix for a crash that could happen when using
2059 * A fix in the format of fontforge.to_table output.
2060 (In 0.31.1 <font>.lookups was near-empty; the lookups
2061 were accidentally output as part of the gpos table).
2063 ==============================================================
2064 Luatex beta-0.31.1 was released 20081209
2065 ==============================================================
2067 fixed a bunch of compilation errors on various platforms, but
2068 with no other visible changes.
2071 ==============================================================
2072 Luatex beta-0.31.0 was released 20081205
2073 ==============================================================
2075 This is just an intermediate release so that some testing can be
2076 done on the updated fontforge embedding.
2078 * There are new fields being generated by fontforge.to_table(),
2079 and one or two old ones have been removed. These fields are /
2080 will be documented in the manual, but very briefly:
2082 - MATH table and associated information are now exported
2083 (the main reason for the new fontforge code)
2084 - Baseline data is now exported
2085 (perhaps usable in lua code)
2086 - Multiple Master / Glyph variation data is now exported
2087 (but useless, for now)
2088 - Mac Feature (AAT) information is now exported
2089 (perhaps usable in lua code)
2090 - If (lookup) names were saved via the PfED table, these
2091 will the exported instead of the default, generated names.
2092 (as requested by Yannis)
2094 * dfont is now treated as an archive format just like ttc
2095 when it comes to fontforge.info(). NOTE: that does not mean you
2096 can actually use them, because the backend doesn't know
2097 yet how to embed dfont fonts in the PDF, that is on the
2098 TODO list for the next big beta (0.40.0).
2100 * The executables are a lot larger than before. That is because
2101 much more of fontforge is included than before. Likely this
2102 will stay this way, because this makes upgrading the ff code
2103 much easier, and it means that luatex/FF potentially
2104 understands more font formats (after upgrading the backend,
2108 ==============================================================
2109 Luatex beta-0.30.3 was released 20081128
2110 ==============================================================
2112 This release fixes a really big bug, a few smaller ones,
2113 and has updates of png and mplib:
2115 * All hyphenation patterns that were anchored at the start or
2116 end of a word were ignored in luatex versions 0.25.X and 0.30.X
2117 (and possibly even earlier).
2119 * Repeated use of \language=-1 could result in "There is not room
2120 for another language".
2122 * The lua true coroutines patch (Coco) is now disabled on OpenBSD
2123 running on non-intel platforms.
2125 * The lua socket library is patched so that it will now compile on
2128 * Luatex now has libpng 1.2.33 and mplib 1.100
2130 ==============================================================
2131 Luatex beta-0.30.2 was released 20081020
2132 ==============================================================
2134 * The Lua coco change from 0.30.1 is reverted as it gave
2135 trouble on MacOSX. Lua coco on non-intel OpenBSD platforms
2136 is now explicitly turned off.
2138 * The lua file reading speedup in 0.30.1 broke reading of
2139 files larger than 100MB.
2141 * Reading of font-related files was broken when there was a find
2142 callback, but no read callback.
2144 * The texmf.cnf array size setup values were ignored whenever
2145 --lua was given on the commandline (instead of only when
2146 texconfig.kpse_init is set to false).
2148 * glyphs with negative widths resulted in incorrect horizontal
2149 placement (overlapping) of the string in the output PDF.
2151 * Using \latelua could sometimes result in an invalid output PDF,
2152 and the argument token list was expanded too early
2154 * There was a read buffer overrun in the mapfile parser
2156 * There are two new variables in the status table:
2157 status.callbacks and status.indirect_callbacks (execution counts).
2159 ==============================================================
2160 Luatex beta-0.30.1 was released 20081009
2161 ==============================================================
2163 * Invalid return values from the linebreak_filter callback
2164 are now handled gracefully (was crashing)
2165 * a preinstalled ctangle is no longer needed except when
2167 * In 0.30.0, the .notdef fix was incorrectly applied to
2168 truetype / opentype fonts.
2169 * A bunch of all memory leaks is fixed
2170 * In lua, f:read('*a') now uses signicantly less memory
2171 * The number of \catcodetables is now limited to 64KB
2173 * Luatex could crash if there were PDF images with and
2174 without page /Group included on the same page
2175 * Lua coco now always uses setjmp (for OpenBSD compatibility)
2176 * The embedded mplib is updated to the latest svn version
2177 * # marks (characters with catcode 6) are no longer doubled
2179 * Handling the nul character (U+0000) with catcode 13
2181 * Luatex could crash on win32 with an access violation
2182 because there was one predefined language too few
2183 (the one matching \language=-1)
2185 ==============================================================
2186 Luatex beta-0.30.0 was released 20080930
2187 ==============================================================
2191 * Readable \tex internal params that are counts, attrs, or dimens are
2192 now returned as numbers instead of strings, and skips as node objects.
2193 Read-write access to tex's skip registers added: tex.skip[0] etc.
2194 * new callback: 'linebreak_callback' to replace the internal paragraph
2196 * the tex table now supports more readable 'convert' values:
2197 tex.fontname, tex.pdffontname, tex.pdffontobjnum, tex.pdffontsize,
2198 tex.uniformdeviate, tex.number, tex.romannumeral, tex.pdfpageref,
2199 tex.pdfxformname (each takes a number as argument)
2200 * new readable parameter: tex.fontidentifier(number) returns the
2201 \csname associated with that font id
2202 * luatex now outputs \FONT<nr> instead of \^^@ in Overfull/Underfull
2203 messages if the font's id text is zero (like for expanded fonts) (#77)
2204 * luatex --version is split into --version and --credits
2205 * There is now (again) an svn revision number in luatex --version (#91)
2206 * Add support for more read-only internal access from lua:
2207 tex.lastpenalty, tex.lastkern, tex.lastskip, tex.lastnodetype,
2208 tex.inputlineno, tex.badness, tex.pdftexversion, tex.pdflastobj,
2209 tex.pdflastxform, tex.pdflastximage, tex.pdflastximagepages,
2210 tex.pdflastannot, tex.pdflastxpos, tex.pdflastypos, tex.pdfrandomseed,
2211 tex.pdflastlink, tex.luatexversion, tex.Alephversion,
2212 tex.Omegaversion, tex.Alephminorversion, tex.Omegaminorversion,
2213 tex.eTeXminorversion, tex.eTeXversion, tex.currentgrouplevel,
2214 tex.currentgrouptype, tex.currentiflevel, tex.currentiftype,
2215 tex.currentifbranch, tex.pdflastximagecolordepth (#81)
2216 * the old --src-specials are replaced by --synctex (#63)
2217 * the \expanded primitive is backported from pdftex 1.50 (#43)
2218 * luatex now comes with libpng 1.2.32
2219 * experimental: tex.definefont(string, number) associates a
2220 csname string with a font id number
2222 Bugs fixed compared to 0.29.0:
2224 * dashes were exported wrongly by MPlib
2225 * multi-item \discretionaries were broken in various ways (#78, mailinglist)
2226 * read_font_info was sometimes called recursively from lua-loaded
2228 * do_vf was sometimes called on lua-loaded fonts that where
2229 already known to be virtual
2230 * trailing junk in tfm files is now ignored (needed for ecrm fonts)
2231 * pdf_ignored_dimen was initialized too late, breaking \prevdepth
2232 handling and causing output lines to overlap eachother (#72)
2233 * pdf.immediateobj() had a printf-related bug
2234 * the fontname terminal logging is fixed for strange font file names
2235 * lua tex array assignments now listen to the globaldefs setting
2236 (tex.count[0] etc) (#92,partial)
2237 * \parshape was broken (#70)
2238 * there is no longer a ".tex" extension forced on very input file (#74)
2239 * eof() for mapfiles was true one byte too soon (#76)
2240 * out of range \lefthyphenmin and \righthyphenmin settings now actually
2241 disable hyphenation (#90)
2242 * tex.unset_attribute() looked too far ahead when a to-be-unset
2243 attribute id not only did not exist in the node, but was also
2244 higher than the highest set attribute on the node. (#65)
2245 * the parameters attr and page_name of read_image() were swapped
2246 (this broke \pdfimage with attributes)
2247 * tex filenames with spaces in them on the command line are now
2249 * sometimes pfb fonts were included multiple times without valid
2251 * some parts of the pdftex 1.40.9 PNG transparancy hack were still
2252 present and caused transparant png handling to fail
2253 * \localinterlinepenalty and \localbrokenpenalty were broken
2254 * special case catcode tables are now handled better (#23)
2255 * the handling of missing .notdef charstrings in old pfb fonts
2258 ==============================================================
2259 Luatex beta-0.29.0 was released 20080718
2260 ==============================================================
2265 * The embedded pdftex is now 1.40.9 (forthcoming) except for the
2267 - the png transparancy fix is skipped because it is in conflict
2268 with a macro-based solution offered by context mkiv.
2269 - LFS (PDF files > 2GiB) is not working yet.
2270 - Synctex is still missing
2272 * libpng, xpdf, and zlib are updated to their pdftex 1.0.9 levels
2274 * MPlib is updated to 1.090
2276 * The syntax of buildpage_filter is changed to avoid confusion
2277 (and crashes). See the manual for the new calling convention.
2279 Bugs fixed compared to 0.28.0:
2281 * The previous bugfix for \languages skipping numbers was wrong.
2283 * Various compile-time warnings are suppressed
2285 * \pdfsetmatrix was broken
2287 * \pdfsave and \pdfrestore were broken
2289 * Valid user_defined whatsits nevertheless were generating errors.
2292 ==============================================================
2293 Luatex beta-0.28.0 was released 20080630
2294 ==============================================================
2296 There is one new feature:
2298 There is now experimental support for non-trivial discretionaries
2299 following explicit hyphens. In analogy to \prehyphenchar and
2300 \posthyphenchar, there are two new parameters \preexhyphenchar en
2301 \postexhyphenchar. Both new parameters default to zero (nothing).
2302 When set to a nonzero value, the parameter is added to either the
2303 pre- or post- break text. Note that this is *in addition to* the
2304 hyphen already in the input. Testing and comments are very welcome.
2306 Here is a short example (no idea what is says):
2310 \postexhyphenchar=`-
2312 pudesse t\^e-lo mantido como amigo, mas por
2313 mais bem-intencionado que eu fosse, n\~ao
2319 Bugs fixed compared to 0.27.0:
2321 * Words that started off with a character with a zero \lccode
2322 were never hyphenated at all.
2324 * There was a bug in the new active characters code that prevented
2325 the latex format from being built (with Invalid character error).
2327 * There is a temporary fix for the sometimes appearing "Font has a
2328 bad FontBB" message from Acrobat.
2330 * \leaders did not actually stretch enough (the last bit of glue
2331 that has to line up the line endings was never output to the PDF).
2333 * Bad paragraph-related callbacks could result in luatex crashing.
2335 * The pre_linebreak and post_linebreak filters were never called
2336 when \output was active (this was a leftover of a superceded
2339 * 'skipping' language codes when setting up \patterns c.s. did not
2340 work (it used the next empty slot instead of the actual value of
2343 * Using multiple 'attr' keywords on box items could cause random
2346 * Calling lang.hyphenate() with one argument (without specifying a
2347 tail node) could crash.
2349 * The luatex pdf banner and version reporting is cleaned up a bit.
2351 * Conflicting patterns inside \patterns now give an error:
2352 ! Conflicting pattern ignored.
2353 (duplicate identical patterns are ignored without error).
2355 ==============================================================
2356 Luatex beta-0.27.0 was released 20080624
2357 ==============================================================
2359 Bugs fixed compared to 0.25.3:
2361 * Unicode reencoding support for non-standard (i.e. older)
2362 Type1 fonts is now somewhat less broken than it was (#25)
2364 * .vf fonts using specials crashed luatex
2366 * luatex would crash on --\par (#33)
2368 * An attempt is made to get a sane default value for StemV in
2369 the created pdf (#32)
2371 * We can now guarantee that %PDF-1.* header is printed before
2372 the first pdf.print() output
2374 * lang.hyphenate() was broken
2376 * insert_before(a,a,b) was broken (#37)
2378 * argv[0] is now cleaned up before being used as a default for
2379 mem_name and prog_name (#28).
2381 * luatex would crash on loading extended fonts (fonts loaded
2382 via lua callbacks) from a format file.
2384 * The fix for pdftex bug #799 is backported from pdftex 1.40.4.
2386 * slnunicode had a bug in the unicode.utf8.gmatch iterator.
2388 * Queries of nonexisting fontdimens could cause a crash.
2390 * luatex would crash on {\textdir TLT\pardir TLT x\break\par }
2392 * Fixed wrong placement of lines in mixed-direction paragraphs
2393 that could happen in some situations.
2396 * Luatex now includes luasocket (#35)
2397 See http://www.tecgraf.puc-rio.br/~diego/professional/luasocket/
2399 There is a new commandline option: --nosocket to disable this,
2400 and that is also implied by --safer.
2402 NOTE to the binary builders: there are some unfixed configure
2403 problems when you need to add a specific library to get socket
2404 support on your platform. You probably will have to edit the
2405 generated Makefile by hand (search for 'socketlib').
2407 * There is ongoing development to the 'img' and 'mplib' libraries.
2408 See the reference manual for details.
2410 * The 'character commands' in virtual fonts now support image
2411 inclusion. See the reference manual for details.
2413 * Lua error messages now include the call stack.
2415 * \directlua and \latelua have been extended to accept a 'name'
2416 keyword. The argument is a token list that is used as the lua
2417 name of this chunk in lua error messages and call stack prints.
2420 * The lua chunk names can be interfaced via a new virtual
2421 table called lua.instancename, the values in that function as
2422 defaults in the absence of 'name' keywords.
2424 * The 2-plane limit on active character range is removed (#12).
2426 * Subsetted TTF fonts in the PDF now retain the cmap table.
2428 * There is a new Lua variable os.selfdir. This contains the
2429 full absolute pathname of the directory that the executable
2430 resides in (with symlinks resolved)
2432 * There is a new function os.uname() this returns a lua
2433 table containing various platform information items.
2435 * The node library now uses text strings for direction specifiers
2436 instead of numbers. See the reference manual for details.
2438 * The 'E' (edit) as error response functionality is now a noop.
2440 * Adding luatex 0.25.3 to texlive resulted in a few minor backports,
2441 in particular: Support for mktexfmt is added, and luatangle now
2442 identifies itself as such (instead of calling itself otangle).
2444 * We fixed a whole series of portability problems (but
2445 we probably introduced new problems as well).
2447 * Most (all?) files now have a corrected Copyright header,
2448 and link in $Id$ and $URL$ into the object file.
2450 * Some unnecessary files were removed from the distribution.
2452 ==============================================================
2453 Luatex beta-0.25.3 was released 20080418
2454 ==============================================================
2457 * Pdftex bug no. 936 (sarovar) regarding vertical
2458 positioning of embedded PDF files if depth parameter is given.
2459 * Luatex gave bogus lua return values for the tex.wd/hd/dp
2460 values of void boxes
2461 * A few bugfixes in mplib (square pens caused hangs, elliptical
2462 pens caused confused output)
2463 * Hyphenation of uppercase words (\uchyph) was broken
2464 * Output image placements corrected for all 8 transform cases
2465 also when artbox etc. is used
2466 * There were missing maketexstring() calls in error messages
2467 * Math display contents were sometimes prematurely freed during
2468 the placement of the equation number
2469 * Setting \language=-1 could cause crashes due to an array
2470 index going out-of-bounds
2473 * build.sh.ppc is added to the source distribution. This is a
2474 script that crosscompiles osx ppc binaries from osx intel
2475 * tex.box[<chardef name>] is now supported (but still experimental)
2476 * a bunch of compiler warnings are removed
2477 * The fontforge library now dump AAT feature tags as and
2479 * The new function font.nextid() predicts the next assigned font id
2480 * Some source code changes are backported from texlive
2482 ==============================================================
2483 Luatex beta-0.25.2 was released 20080410
2484 ==============================================================
2486 * Updated to MPlib 0.40
2487 * Bugfixes and cleanup in the lua img table code
2488 * Fix \pdflastximagepages bug from pdftex
2489 * Fix for very large tex.print strings
2490 * Update to Lpeg 0.8.1
2491 * &D Bugfix for Type1 fonts when out-of-range characters
2492 are marked as 'used'
2494 ==============================================================
2495 Luatex beta-0.25.1 was released 20080321
2496 ==============================================================
2498 * Updated to MPlib 0.30 (that is now becoming usable)
2499 * The build requirement for a pre-installed ctangle is gone
2502 ==============================================================
2503 Luatex beta-0.25.0 was released 20080311
2504 ==============================================================
2509 This version features an embedded MP interpreter whose output
2510 can be directly accessed from lua code (mplib), without calls
2511 to an external "mpost" command. Of course it has bugs and
2512 limitations (makempx does not work, for example) but keep in
2513 mind that it is only an initial attempt.
2514 See the manual for more details.
2516 ** img.immediatewrite() is added
2517 ** images now accept a 'transform' key
2518 ** widths etc. can now be given as width="100mm"
2522 * \parshape handling was completely broken since 0.20.0+
2523 * when \pdfprotrudechars was in effect, an assertion failure
2524 could happen when embedded \hboxes in the paragraph appeared
2525 at the end of a line.
2526 * import of otf fonts with contextual lookups has been debugged,
2527 thanks to a patch by GW himself.
2528 * compiling with gcc 4.2.3 is now supported
2529 * if you want to build from source, you need a pre-installed ctangle.
2532 ==============================================================
2533 Luatex beta-0.22.1 was released 20080227
2534 ==============================================================
2536 * The macnames.c source file for building ttf2afm is restored.
2537 * "make depend" in luatexdir now works again
2538 * luatex sometimes crashed because it attempted to expand an
2539 already expanded font
2540 * luatex aborted when --progname was given but no format name.
2541 It now sets the format name to the given progname in that case
2542 * sometimes paragraphs with near-empty lines could cause a crash
2543 * img.supportedtypes() had a bug causing it to crash
2544 * img.supportedtypes() has been renamed to img.types for consistency
2545 * img.boxes() added, returns strings representing bounding boxes
2546 * img.node() added, returns a whatsit node cf. \pdfrefximage
2547 * node.write() now accepts multiple arguments
2548 * the program_name_set switch was not set automatically from C,
2549 causing errors unless lua code called kpse.set_program_name()
2551 * kpse.set_program_name() can now be called more than once
2553 * os.spawn{...} and os.exec{...} could cause crashes because of
2554 a memory allocation error
2556 ==============================================================
2557 Luatex beta-0.22.0 was released 20080215
2558 ==============================================================
2560 * We now have an official bug tracker: http://tracker.luatex.org
2561 * A new lua library (img) is added that allows a direct
2562 interface to the image handling of luatex. You can use this
2563 to include images from lua code instead of via the more
2564 traditional \pdfximage cs. See the manual.
2565 * An optional equal sign after \{pre,post}hyphenchar is now
2567 * os.exec() has been extended, and os.spawn() added. These
2568 functions have support for quoted strings, and they
2569 also accept a table with preseparated command arguments.
2570 * New string constants os.type and os.name are provided.
2571 * node.last_node() is added. This pops and returns the last
2572 node from luatex's 'current list'
2573 * node.write() is added. This appends a node to the end of
2574 luatex's 'current list' (experimental).
2575 * The strict check on unicode compliance in pattern files
2576 is dropped. Patterns files still have to be in proper UTF-8
2577 encoding, but the error for non-Unicode character values
2578 (like 0 - 31 and 127 - 159) is dropped.
2579 * \pdfadjustinterwordglue, \prependkern, \appendkern
2580 and associated \XXXXcode arrays are gone.
2581 * The rest of the pdftex font arrays are now merged into
2582 the new luatex font data structure. This means that you
2583 can now set up font expansion from lua code, and that a few
2584 font-related limits are gone.
2585 * The 'top_skip' field in 'insert' nodes is renamed to 'spec',
2586 for improved consistency.
2587 * kpse.show_path() added. This behaves just like
2588 $ kpsewhich --show-path
2589 * The unicode.utf8 functions now also accept values in the range
2590 1.114.112 - 1.114.367 that is used by LUATEX for raw byte output.
2594 * Better node memory (de)allocation error tracking and messages
2595 * Compilation on MacOSX 10.5 was broken
2596 * There was a bug in node.insert_after
2597 * Use of \{pre,post}hyphenchar was broken
2598 * lfs.permissions was leaking memory
2599 * Some warning and error messages are improved a bit
2600 * A set of bugs in character protrusion, this seems to be working
2602 * Also, a set of bugs in font expansion. This now works in most
2603 cases but is not quite bugfree yet (problematic files for testing
2605 * The functions in the kpse library would crash luatex if
2606 kpse.set_program_name() was not yet called. gives an error now.
2607 * Alignments with spanned columns could cause crashes
2608 * A patch is added for problems with filename parsing on the
2609 "first input line" (by Jonathan Kew)
2610 * The hpack_filter and vpack_filter were only called for lists longer
2612 * Luatex is now more forgiving about font subsets being smaller
2613 than their expected size (issues a warning instead of aborts now)
2614 * A "double-free ignored" error for paragraphs with lines starting
2615 with discarded items was fixed.
2617 ==============================================================
2618 Luatex beta-0.20.2 was released 20071217
2619 ==============================================================
2621 * some portability fixes to the build scripts
2622 * a fix for multi-\span in alignments causing unbreakable
2624 * manual improvements from Jonathan Sauer
2625 * fix for undefined csnames in \directlua if
2626 web2c's hash_extra is nonzero
2627 * fix for LR text inside of a RL document
2628 * fix for open_read_file callback not being called
2629 unless find_read_file was also registered
2630 * removed the ocp status message when \ocps are not
2632 * "unicodeenc" in the fontforge to_table renamed to
2633 "unicode" for improved consistency
2635 ==============================================================
2636 Luatex beta-0.20.1 was released 20071207
2637 ==============================================================
2639 * texlua was broken on Solaris because the some C header
2640 files were loaded in the wrong order.
2641 * os.tmpdir() now accepts an argument, making it easier
2642 to use. It now generates more unique filenames when
2643 it is called repeatedly in one run.
2644 * The --luaconly commandline switch is now documented
2646 * The new extended hyphenation exceptions were severely
2648 * \pdfprotrudechars could cause luatex to abort with an
2650 * There was a bug in the \span code that could cause endless
2652 * The simple forms of \leaders were messed up on windows
2653 because a variable was not properly initialized.
2654 * Non-grouped \textdir commands created invalid output.
2655 * e-TeX's pseudo files were not closed properly in ini mode.
2656 * The luatex.web now weaves properly again.
2657 * I made some small improvements to the manual.
2659 ==============================================================
2660 Luatex beta-0.20.0 was released 20071205
2661 ==============================================================
2663 News compared to the last beta (0.11.2) is as follows:
2665 * Completely overhauled hyphenation and ligkern application,
2666 including the addition of a new "lang" table in lua to
2667 interface to the language parameters, some extra functions
2668 in the "node" table, and a few extra callbacks ("hyphenate",
2669 "ligaturing", "kerning", "post_linebreak_filter").
2671 There is a new chapter in the manual to document all the
2672 changes to the hyphenation and line breaking algorithms,
2673 it is simply too much to list here.
2675 * the interface of the pre_linebreak_filter,hpack_filter,
2676 vpack_filter, and pre_output_filter has changed slightly.
2678 * boxes can now get explicit attributes different from the
2679 currently active set, using a syntax like
2681 \hbox attr2=12 attr3=-1 to 12pt {Hi!}
2683 * lpeg is now at version 0.7
2685 * a whole series of exotic bugs and compiler warnings are
2686 fixed, mostly thanks to the watchful eye of Fabrice.
2688 * texio.print now accepts multiple strings as arguments.
2690 * the lua functions os.sleep(), os.times(), os.gettimeofday()
2691 and os.tmpdir() have been added.
2693 * lua now comes with the coroutine (coco) patches from the
2694 luajit project applied.
2696 * the banner line no longer claims to be TeX.
2698 * a bunch of bugs reported on the mailing list have been
2699 fixed (I hope all of them).
2701 * (internal) we found lots of small ways to speed up lua
2704 * (internal) the node (de)allocation functions have been
2705 rewritten, so that absolutely all nodes now have a type,
2706 even the ones with variable sizes.
2709 ==============================================================
2710 Luatex snapshot-20071029 was released 20071029
2711 ==============================================================
2713 * Completely overhauled hyphenation and ligkern application.
2715 There is a new chapter in the manual to document all the
2716 changes to the hyphenation and line breaking algorithms,
2717 it is simply too much to list here.
2719 * the interface of the pre_linebreak_filter,hpack_filter,
2720 vpack_filter, and pre_output_filter has changed slightly.
2722 * lpeg is now at version 0.7
2724 * a whole series of exotic bugs and compiler warnings are
2725 fixed thanks to the watchful eye of Fabrice.
2727 * texio.print now accepts multiple strings as arguments.
2729 * The lua function os.sleep() is added
2731 ==============================================================
2732 Luatex beta-0.11.2 was released 20070918
2733 ==============================================================
2735 * Pdf inclusion and subsetting of CID-based opentype fonts
2736 now works as it should.
2738 ==============================================================
2739 Luatex beta-0.11.1 was released 20070918
2740 ==============================================================
2742 A quick list of what is new and fixed since beta 0.10.2:
2745 * pfb+afm fonts can now be used in 'wide' (encodingbytes=2) mode
2746 * searching in PDFS using 'wide' fonts now works reasonably well
2747 (based on the tounicode feature)
2748 * related to that, tounicode information can now be passed
2749 on inside the font metrics table
2750 * font subsetting is now supported for CID-based OpenType fonts
2751 (however, there is a known bug with KpozMinProVI-Regular.otf)
2752 * fontforge's warning and error messages are now intercepted
2753 and passed on to the lua code as a second return value of
2754 the fontforge.open() function
2755 * the new primitive \suppressfontnotfounderror can suppress
2756 the TeX error for "Font not found"
2757 * The lua function font.current can now be used to set TeX's
2761 * set_attribute(-1) is now the same as unset_attribute()
2762 * OpenType lookups with glyph classes would crash luatex
2763 * luazlib would not compile on debian (fix from Norbert)
2764 * CID-based fonts would crash luatex
2765 * Bare CFF should be read in binary mode (fix from Akira)
2766 * VF processing did not process packets containing zero bytes properly
2767 * the truetype collection (.ttc) handling is fixed, so that all
2768 of the fonts inside a collection can now be used reliably
2769 * application segfaults and stack overflows are intercepted
2770 so that luatex can quit a bit more gracefully
2771 * an assertion failuer on systems with signed chars (linux-powerpc)
2773 * a crash on AMD64 linux was fixed
2774 * the lua "pdf" table code was wrong
2775 * \ifcsname did not work properly for UTF-8 characters
2776 * Use of the math-related functions using make_fraction (like \atop)
2778 * \handling of \if\noexpand was wrong
2779 * applied a patch that cleans up XForm and page calculations
2780 * "autoconf" support from zziplib is stripped
2782 ==============================================================
2783 Luatex beta-0.10.2 was released 20070814
2784 ==============================================================
2788 * the primitive \span was completely broken
2789 * \pdfexpandfont (font expansion) misbehaved if it was used more
2791 * virtual fonts: sometimes they used the wrong internal font id,
2792 loading vf fonts via fonts.read_vf() was impossible, and sometimes
2793 virtual fonts created segfaults
2794 * while dumping formats, the last font parameter for each font was not
2796 * zziplib was always compiled with pre-installed zlib headers, instead
2797 of the ones in the build tree
2798 * lua 5.1.2 has trouble quoting ^Z characters etc, the tentative patch
2799 for lua 5.2 from Luiz fixes that, hopefully
2800 * fontforge.font('font.pfb') now properly parses AFM boundingboxes
2801 * non-existing files in the argument for fontforge.open() or
2802 fontforge.info() could cause segfaults, now it generates an error
2804 * fontforge.open() did not return character widths for vertical fonts
2806 * on Windows, fontforge believed that ttc files (TrueType Collections)
2807 were actually directories. ttc processing is still not 100% correct,
2808 but it is getting better
2809 * the build system used explicit 'make' sometimes
2810 * the auto-growing string pool was not used everywhere
2811 * there were some typos in the documentation parts of the pascal web
2812 * use of \parshape could easily exhaust all available memory
2817 * support for applying Adobe Feature files (.fea) and Adobe Font
2818 Metrics (.afm) is added to the fontforge library
2819 * fontforge.info() will now return an array of tables for the contents
2821 * support for a 'texluac' personality was added, to replace the 'luac'
2822 command from the official Lua distribution
2824 ==============================================================
2825 Luatex beta-0.10.1 was released 20070719
2826 ==============================================================
2828 This was a hotfix because beta-0.10.0 was completely broken.
2830 ==============================================================
2831 Luatex beta-0.10.0 was released 20070718
2832 ==============================================================
2834 The latest version of the manual is included in the package, and I
2835 am not going to repeat all of that. There were some minor changes
2836 compared to the previous snapshot, but mostly just bugfixes and
2837 documentation improvements.
2839 ==============================================================
2840 Luatex snapshot-20070626 was released 20070626
2841 ==============================================================
2843 * Integrated the lua library lzlib, this defines tables with
2844 bindings for zlib (including eazy-to-use gzip support)
2845 * Updated to slnunicode version 1.1
2846 * Some small cleanups in the sparse array handling
2847 * Moved the raw byte support out of the valid unicode range
2848 * Fixed a bug in the OFM font reader
2849 * Removed the pdftex snap nodes (and associated primitives)
2852 ==============================================================
2853 Luatex snapshot-20070622 was released 20070622
2854 ==============================================================
2856 Not a lot of news, but it fixes a few important bugs in the lua
2857 node processing. Also a few utility functions are added:
2860 rounds and bounds checks a lua number to make sure it is
2861 a valid tex integer.
2863 multiplies a number (or the numeric values in a table)
2864 with a fixed quantity, and calls tex.round() on the result.
2866 Test if a node has a specified field name
2868 removes a node from a nodelist, while keeping the list intact
2869 * node.insert_before()
2870 inserts a new node into a nodelist, just before a specified
2872 * node.insert_before()
2873 inserts a new node into a nodelist, just after a specified
2876 packages a nodelist into a hlist node
2879 ==============================================================
2880 Luatex snapshot-20070619 was released 20070619
2881 ==============================================================
2883 * The lua node processing interface is completely reworked.
2884 It is now completely based on userdata, and uses a new lua table
2885 called 'node' to hold the methods. More detailed information
2886 is in the manual (of course).
2888 * There is a fifth node processing callback:
2890 this is executed just before the packaging of \box 255.
2892 * The hpack_filter and pre_linebreak_filter callbacks now
2893 receive an extra argument indicating the number of top-level
2894 glyphs in the node list.
2896 * Virtual fonts can now contain a 'node' key in the glyph
2897 commands: the value should be a hlist node (i.e.: a horizontal
2898 box), and that will then be output for each character access
2901 * A new set of registers is added, called \attribute. These are
2902 values that will be automatically attached to nodes created in
2903 their scope. More information in the manual.
2905 * Direct read/write access to TeX's box registers is addded to
2906 the lua 'tex' table.
2908 * TeX's main memory now grows dynamically, and the (de)allocation
2909 routines have been rewritten completely.
2911 * The 'kpse' table is extended with extra interface functions, to
2912 allow texlua to be used as a scripting engine.
2914 * The \pdftexversion command now returns 200, not 140.
2916 * The displayed banner and --version screens are cleaned up.
2918 * The format file is now RLE compressed. Not as small as before,
2919 but unpacking is much faster.
2922 ==============================================================
2923 Luatex snapshot-20070426 was released 20070426
2924 ==============================================================
2926 This past month I have been busy with nodes and lists of nodes,
2927 so the big new feature in this release is that there are four
2928 callbacks that operate on node lists:
2931 pre_linebreak_filter
2935 The preliminary documentation for these is in the manual, but the basic
2936 idea is that you can filter a node list just before LuaTeX starts doing
2937 something with it (like line breaking). This functionality is not stable
2938 yet: the node presentation of the various node types is pretty much OK
2939 now, but keep in mind the following:
2941 * math noads and math typesetting are not handled at all (yet)
2942 * not all hpacks and vpacks are intercepted (yet)
2943 * the nested node list handling will probably change
2944 * A conversion tool for nodes to/from dictionaries is planned,
2947 The other changes in this snapshot are various bugfixes (for builds
2948 on various platforms as well as font issues) and speedups (in the
2949 execution of callbacks and the creation of lua font representations).
2952 ==============================================================
2953 Luatex snapshot-20070322 was released 20070322
2954 ==============================================================
2956 * I have changed the token_filter callback quite rigorously,
2957 mostly because of speed issues. The raw speed of trivial
2958 lua token handling is now only about 20 times slower than
2959 the native handling. Not bad at all, considering it has to move
2960 between interpreted and compiled code for each and every
2961 token. If you do not run the token filter inside \output,
2962 the effective run speed difference should not be much more
2965 Two big differences: you have to call token.get_next()
2966 yourself, and the token table is now a three-item array
2967 instead of a five-key hash. The minimal example changes to
2970 callback.register('token_filter', function ()
2971 return token.get_next()
2975 more details are in the manual.
2977 * I've fixed a few bugs in the handling of Opentype TTF, and added
2978 a new key in the font definition table:
2980 f.encodingbytes = (1|2)
2982 The default is 2 for opentype and truetype format, 1 otherwise.
2983 Later on, it will become possible to have a type1 font in 2-byte
2984 (CID) encoding or a truetype font in traditional encoding (1-byte),
2985 but I have not covered all cases yet.
2989 ==============================================================
2990 Luatex snapshot-20070309 was released 20070309
2991 ==============================================================
2993 * The OCP debug information is removed again.
2995 * There is a new callback that I am quite excited about myself:
2999 A bit of text from the reference manual:
3000 --------------------
3001 This callback allows you to change the modify any lexical token that
3002 enters the \type{main_control} function before \LUATEX\ executes the
3005 Note: not all tokens can be intercepted yet, only those that are `seen'
3006 by \LUATEX's main control function. Supplemental tokens like the bodies
3007 of macro definitions and the right-hand side of register assignments
3008 are not seen. For now, this is intentional.
3011 function (table <token>)
3012 return table <token>
3016 Calling convention for this callback is bit more complicated then for
3017 most other callbacks. Initially, lua function will be called with the
3018 next token from \type{get_next()} as argument, represented as a small
3019 lua table. The function should either return a lua table representing
3020 a valid to-be-processed token, or something else like nil or an empty
3023 If your lua function does not return a table representing a valid
3024 token, it will be immediately called again with yet another token
3025 from \type{get_next()} as argument, until it eventually does return
3028 But if the function does return a usable token, then that token will
3029 be processed by \LUATEX. Afterwards, the function will be called
3030 again, but now without an argument. This is repeated until it stops
3031 returning tokens. Then processing reverts back to the other branch.
3033 The point behind that roundabout calling convention is that it
3034 allows the lua function to buffer tokens for various uses. That in
3035 turn makes it possible to do some really advanced things like
3038 Now about that table. The table that the function will receive
3039 contains four fields:
3041 \starttabulate[|l|i|p|]
3042 \NC Key \NC type \NC Explanation \NC\FR
3043 \NC cmd \NC string \NC A representation of \LUATEX's internal
3045 \NC chr \NC number \NC The command code modifier\NC\NR
3046 \NC cs \NC string \NC If the token came from a csname, this
3047 is that csname\NC\NR
3048 \NC mod \NC character \NC A single character string representing
3049 the current processing mode. One of {\bf v}ertical, {\bf h}orizontal,
3050 display {\bf m}ath, {\bf n}o, internal {\bf V}ertical,
3051 restricted {\bf H}orizontal, or inline {\bf M}ath mode.\NC\LR
3054 If you modify the table before returning it, then it is wise to return
3055 either a (\type{cmd}, \type{chr}) pair, or a \type{cs} string. That is
3056 because if both options are present, the pair has precedence and the
3057 string is ignored. On the return table, {\bf mod} is ignored always.
3060 I have no long example code yet and it is not as complete as one
3061 would want it to be because it is not intercepting everything that
3062 comes in, only the bits that are triggered by the main control
3065 I decided to do a fast snapshot release for two reasons:
3067 * It is one of the easier extensions to get started with if you want
3068 to learn a bit about lua programming
3070 * I would welcome feedback on the token interface, because it will
3071 be needed in other places as well, soon. I am still not sure
3072 whether converting the command to/from strings is worth it, for
3073 example. And maybe it would be less confusing if you could return
3074 a list of tokens instead of being called repeatedly?
3076 Here is the trivial example to get you started:
3079 callback.register('token_filter', function (t) return t end)
3083 ==============================================================
3084 Luatex snapshot-20070307 was released 20070307
3085 ==============================================================
3088 * Non-CID PostScript-based Opentype fonts are now combined over
3089 the entire document, and properly subsetted. The code is
3090 borrowed from xdvipdfmx with some minor adjustments
3092 Adding support for CID-keyed OpenType fonts would not be hard
3093 but at the moment I lack example input (and incentive).
3095 * A small extension to the virtual fonts structure: you can use
3097 f.fonts[1] = { 'id' = 38}
3099 to do a backreference to a previously defined font. This saves quite
3102 * There was a bug in the handling of \leaders in the output whereby
3103 it's width was taken to be twice what it should be while writing
3104 to the PDF, fixed now.
3106 * The font inclusion code is cleaned up a bit by Hartmut.
3108 * Some compilation problems were fixed.
3110 * There is (quite a bit of) debugging information printed out when
3111 OTPs are in use, because I am tracking down a bug reported by Idris.
3113 The input of each and every OTP step is shown on the terminal in
3116 [57902][1568][58423][1568][58408][1568][58921]
3118 those are the decimal values of ocp i/o characters. If you don't
3119 need them, don't worry about it.
3121 ==============================================================
3122 Luatex snapshot-20070302 was released 20070302
3123 ==============================================================
3125 * The 'snapshot version' banner is now calculated dynamically
3126 at build time. This aids in figuring out what binary people
3127 are actually running, but it can possibly break the build on
3128 systems that do not have a `date` command.
3130 * The do_vf() function that checks for virtual font existance
3131 is now run immediately after the font definition instead of
3132 being postponed until characters are output.
3134 * The 'define_font' callback interface has changed a little.
3136 retval = function (name,size,fontid)
3138 where fontid is the internal font number of the font that
3139 is currently being defined, and retval can be either a table
3140 (as before) or a different, previously defined fontid. This is
3141 useful if a previous definition can be reused instead of
3142 creating a whole new font structure.
3144 * The internal font data structure has been redone. Glyph index
3145 inside a font is now handled by a sparse array, so that use
3146 of e.g. 0xFB01 (fi-ligature) no longer creates a 64000+ entries
3149 * The internal cache-ing of font metric information is turned
3150 off completely, because it was based on the assumption that
3151 name + size were a unique identifier for a font. This can no
3152 longer be guaranteed.
3154 * word boundary processing now works OK again, thanks to the
3155 introduction of two virtual characters in the font table
3156 definition. Besides the normal numeric entries in the
3157 f.characters table, there can now also be two string keys:
3158 "left_boundary" and "right_boundary". The ligatures and kerns
3159 of the 'left_boundary' character are used for the pre-word
3160 boundary processing, ligatures and kerns between characters
3161 and 'right_boundary' are used for the post-word processing.
3163 * Lua font table references are no longer cached by the
3164 executable ,in order to preserve memory. (the only downside
3165 is that font.fonts[] access is now slower because of the need
3166 to recreate the lua table).
3168 * There are other some small changes to the font table formats.
3169 Please see the manual for details.
3171 * A 'real' font can now still have virtual characters if they
3172 are loaded via lua. Just set the 'commands' section and/or
3173 the 'fonts' array to your liking, and it should work out.
3175 If you have created no 'fonts' array at all, then the default
3176 font (indentifier '1') is the current font, so that you
3177 can create virtual duplicates of already existing characters.
3179 Note: this does not work the other way. There can not be
3180 'real' characters in a virtual font!
3182 * Truetype-based opentype fonts no longer require Acrobat 7
3183 t(hey are now written out as if they are normal truetype).
3185 * A lua init script can now set 'texconfig.formatname' and/or
3186 'texconfig.jobname'. If ther is no file or format specified
3187 on the commandline, then, if, one of those keys is present,
3188 that key will be used instead of simply quitting with an
3191 * Placement of boxes and rules in right-to-left mode is debugged,
3192 and now seems to work ok.
3194 * Virtual font loading is debugged.
3196 * Some memory leaks are resolved
3198 * HZ font expansion should work ok again, but is not tested.
3200 * a few of the warning during opentype loading have been removed
3201 because the problems are rather harmless and turned out to be
3202 triggered by almost every font.
3205 ==============================================================
3206 Luatex snapshot-20070218 was released 20070218
3207 ==============================================================
3209 * The pdftex stuff is now updated to 1.40.3
3210 (and on top of that, it still has those extra patches announced in
3213 * The virtual font parser is debugged and now appears rather stable.
3215 * There is one extra virtual command:
3218 {"slot", 1, 97}, -- place character 97 'a' in local font 1.
3221 This is just a shortcut for {"font",1}, {"char", 97}
3223 * Some small memory leaks have been fixed. Luatex does not leak big
3224 time, but I'd like to get back to valgrind reporting '0 out of 0',
3225 instead of the current 800 bytes or so (that is a slow process).
3227 * You can read a truetype or opentype font from within lua code
3228 using font.read_ttf() or font.read_otf(), respectively.
3230 This feature uses a fair bit of the fontforge code, making the
3231 binary rather a bit larger than before. Just so you know.
3233 Apple (AAT, as well as encoding) support is still largely missing,
3234 and bitmap-only and old Multiple-Master truetype fonts are not
3235 supported at all (and never will be).
3237 The output format is (shadily) documented in the reference manual.
3238 At the moment, it very closely resembles the internal font stucture
3239 that is used by fontforge.
3241 * LuaTeX can now write wide OpenType fonts to the PDF file.
3243 There is no subsetting support yet, and a ToUnicode CMap is also
3244 still missing, but nevertheless it is already somewhat useful. The
3245 rule is very simple: if a font uses code points above 255, then it
3246 is considered to be a `wide' font, and it will be written out as
3247 a Type0 CID-keyed font to the PDF.
3249 Caveat: Getting suitable metrics into LuaTeX can be a bit of problem
3250 right now, because font.read_otf() does not produce anything that
3251 can be fed back into define_font without extra processing. Hans has
3252 some experimental Lua code for ConTeXt (of course :-)) and that is
3253 how I know it works. You can expect a nicer interface soon,
3254 hopefully next week, in the form of a simplistic table conversion
3257 * I have started work on supporting Aleph's bidi typesetting in PDF
3258 mode as well, simple text seems to be largely ok. More complicated
3259 documents will no doubt still show some bugs, but fixing those will
3260 be easy (once they are discovered). Exactly what happens with specials
3261 is not yet investigated.
3263 * Omega's (16-bit) wide virtual fonts now work OK in PDF mode. This
3264 means that many Aleph files can now be run in PDF mode directly.
3265 (the documents that use UTF-8 input encoding)
3268 ==============================================================
3269 Luatex snapshot-20070202 was released 20070202
3270 ==============================================================
3273 * The pdftex stuff is now updated to 1.40.2, and on top of that, it has
3275 - an extra patch from Han The Thanh that adds a primitive to control
3276 the merging of fonts from external pdf images (\pdfreplacefonts),
3277 and a bugfix for virtual font handling.
3279 - an extra patch by Hartmut Henkel that removes a number of malloc()s
3280 and free()s from the calls to the compression library, thereby
3281 making luatex run a bit faster.
3283 * luatex now happily accepts the following low-level syntax:
3285 \font\myfont = <general text> <at specifier>
3287 It feeds the <general text> to either kpathsea or a lua script for
3288 further processing after stripping the braces.
3290 In itself, this is not all that useful, but the reason for this
3291 syntax extension is that it paves the road for a macro package
3292 to do something like this:
3294 \font\myfont = {font="Times New Roman", color="\darkred",
3295 encoding="ec", features="liga", size=10bp}
3297 without having to resort to system-specific quoting mechanisms.
3298 Macro (and other) expansion takes inside the braced argument.
3300 (I am considering adding this extension to \input as well).
3302 * It is now possible to define a font into the font.fonts[]
3303 directly from lua, but becayse use is limited, I am only
3304 mentioning it to be complete.
3307 <number> id = font.define(<table> font)
3309 * There is a (not very reliable yet) virtual font parser accessible
3313 <table> vfdata = font.read_vf(<string> name, <number> size)
3315 The interpreter tries to give a reasonable representation of a
3316 virtual font file (the .vf file). Besides a few simple top-level
3319 designsize -- in scaled points
3321 name -- the file name
3322 checksum -- the vf checksum
3323 header -- the header comment (if any)
3325 it also has a top-level array 'fonts' wherein each item is a mini-
3326 array describing one of te mapped fonts. An example makes this
3329 "fonts" = { {"ptmr8a",655360}, {"psyr", 600000} }
3331 says that the first referenced font (index 1) in this virtual font
3332 is ptrmr8a.tfm loaded at 10pt, and the second is psyr.tfm loaded
3333 at a little over 9pt. These index numbers are used by the character
3334 command definitions that follow.
3336 At top level, there is a 'characters' array, just as for a normal
3337 font, except that each item has only two keys:
3339 "width" -- the tfm width (as stored in the .vf)
3340 "commands" -- an array of virtual font commands for a character.
3342 each of the items in the 'commands' array is itself a tiny hash.
3344 Each of those mini-hashes represents a single character packet
3345 command. Here is a 'commands' entry that contains every possible
3349 {"push"}, -- remember where we are
3350 {"right", 5000}, -- move right 0.08pt
3351 {"font", 1}, -- select the fonts[1] entry
3352 {"setchar", 97}, -- place character 97 'a'
3353 {"pop"}, -- go all the way back
3354 {"down", -200000}, -- move *up* about 3pt
3355 {"special", "pdf: 1 0 0 rg"} -- switch to red color
3356 {"rule", 500000, 20000} -- draw a bar
3357 {'special',"pdf: 0 g"} -- back to black
3361 * But the big news is that you can now define your own virtual fonts
3362 on the fly, by adding a few statements to the table returned to
3363 the 'define_font' callback.
3365 There are a few requirements:
3367 - The table has to have a top-level key 'type', and it's value
3370 The presence of this key with the specific value 'virtual'
3371 will trigger handling of the rest of the special virtual font
3372 fields in the table, but the mere existance of 'type' is
3373 enough to prevent luatex from looking for a virtual font
3376 Therefore, this also works 'in reverse': if you are absolutely
3377 certain that a font is not a virtual font, assigning the value
3378 'base' or 'real' to 'type' will inhibit tex from looking for a
3379 virtual font file, thereby saving you a disk search.
3381 - There must be a top-level 'fonts' array, as explained above.
3382 Any fonts that are not yet known to luatex at that moment,
3383 will be loaded automatically (Warning: do not ever use a font
3384 in 'fonts' with the same name you will return in the table you
3385 are defining right now!).
3387 - Each and every character in the fonts needs to have a 'commands'
3388 key, as explained above.
3390 The main point behind these restrictions is that a font is
3391 *either* a base font *or* a virtual font. It cannot be both
3395 ==============================================================
3396 Luatex snapshot-20070126 was released 20070126
3397 ==============================================================
3400 * Underscores in pascal identifiers are now retained.
3402 This took quite a bit of work. The web2c conversion tools
3403 needed only small adjustments, but most of the existing C
3404 code depended on the removal of the underscores. I had to
3405 go through changing many lines. 99% of all identifiers are
3406 now written the same on the pascal side as on the C side.
3407 This makes writing interface code quite a bit less confusing.
3409 Not everything is completely clean yet, because I did
3410 not want to change the web2c-specific C files. I often
3411 took the other approach and removed the underscores
3412 from the web2c options (like 'parsefirstlinep') in the
3413 change file instead. Ugly, but predictable.
3415 There is about a dozen or so of #defines left, that map
3416 memoryword -> memory_word
3420 * The virtual font parsing and interpreting is now done in C.
3421 (this is because it needs to be interfaced with the lua-based
3424 * I am in the process of merging: the VF stuff; the TFM stuff;
3425 the lua font loading; and the pdftex font backend into one
3426 interface, so there were some smallish changes relating to
3427 that as well. Nothing worth mentioning just yet except that
3428 luatex now will read "ovf" files as well as "vf" files.
3430 * There are a few really small bugfixes for bug reports I received
3431 on this list and by email.
3433 ==============================================================
3434 Luatex snapshot-20070119 was released 20070119
3435 ==============================================================
3437 The largest new bit is the existence of a font.fonts array, that you
3438 can use to query/adjust the internal defined tex fonts. See the manual
3441 Two small new lua extensions are added as well:
3443 * os.setenv() -- to change the environment
3444 * os.exec() -- a non-returning os.execute()
3446 And a bit of cleanup in the commandline processing.
3449 ==============================================================
3450 Luatex snapshot-20070117 was released 20070117
3451 ==============================================================
3453 * the pdftex core is updated to 1.40.1, and web2c to 7.5.6
3455 * the pdftex-specific documentation is removed
3457 * lua lpeg library updated to 0.4
3458 ( http://www.inf.puc-rio.br/~roberto/lpeg.html )
3460 * the C part of the lua md5 library is added to the binary
3461 ( http://www.inf.puc-rio.br/~roberto/md5/md5-5/md5.html )
3463 * --luaonly now puts the script itself at arg[0], and
3464 preceding commandline items in the negative indices
3465 (instead of starting the count at zero).
3466 This new approach is compatible with the standalone lua
3470 ==============================================================
3471 Luatex snapshot-20070107 was released 20070107
3472 ==============================================================
3474 Hot on the heels of 20070105, a new snapshot. It turns out
3475 that using the callback to define a font broke all ligatures.
3476 This snapshot fixes that, and it has a few minor updates to
3477 the manual. Next shapshot will be after the inclusion of
3480 ==============================================================
3481 Luatex snapshot-20070105 was released 20070105
3482 ==============================================================
3484 * the calculations that converted lua strings into tex units
3485 were horrendously wrong, this was discovered by Pawel.
3487 * io.lines() was still using the old, line ending sensitive,
3488 code from the lua core distribution
3490 * The main font memory is allocated as needed^(1) instead of
3491 statically pre-allocated.
3493 * ligatures and kerns are separated completely from each other,
3494 so use of \noligatures no longer inhibits kerning as well
3496 * Metrics can be loaded using a callback: 'define_font'.
3497 The value returned should be a lua table representing a tfm
3500 * there is a new lua table: font. It has one function:
3501 font.read_tfm() that returns a table reprentation of the tfm
3502 contents, for use with the above mentioned callback
3504 * I dropped suppport for "Level 1" OFM files. I would like
3505 to have a try at those extended font files, but I lack
3506 examples (fonts nor documents). I am not even sure such
3507 fonts have ever existed in the 'real world'.
3511 ==============================================================
3512 Luatex snapshot-20061208 was released 20061208
3513 ==============================================================
3515 * There is a new switch: --safer. This disables a number of lua
3516 functions that are more or less dangerous (a detailed list is
3519 * Two longstanding bugs have been fixed: \latelua works once
3520 again (patch by Hartmut) and a bug that caused mysterious crashes
3521 turned out to be a problem inside the paragraph builder
3522 (reconstitution of ligatures)
3524 * Six new string iterators have been added to the string library:
3525 string.characters (one 1-letter string)
3526 string.bytes (one byte)
3527 string.characterpairs (two 1-letter strings)
3528 string.bytepairs (two bytes)
3529 string.utfcharacters (a one-character utf-8 string)
3530 string.utfvalues (a unicode code point number)
3532 * The top 256 values of the unicode range (starting at hex
3533 value "10FF00) are now reserved for byte output. Characters
3534 in that range will be written by luatex after substracting
3535 that offset. The net result is that \char"10FFA9 is written
3536 as byte value hex A9 = decimal 169 = copyright sign in latin1
3538 This trick allows byte-oriented output to \pdfliterals and
3539 \specials, but should be considered very experimental.
3541 * There is a new callback called 'process_input_buffer' that can
3542 be used to mutate the line buffer just before LuaTeX actually
3543 starts looking at it.
3545 * The statistics table now has readable items
3547 statistics.lasterrorstring
3548 that represent TeX's current input id and the last error string
3550 * The show_error_hook callback no longer receives any arguments
3551 * There is a new switch: --safer. This disables a number of lua
3552 functions that are more or less dangerous (a detailed list is
3555 * Two longstanding bugs have been fixed: \latelua works once
3556 again (patch by Hartmut) and a bug that caused mysterious crashes
3557 turned out to be a problem inside the paragraph builder
3558 (reconstitution of ligatures)
3560 * Six new string iterators have been added to the string library:
3561 string.characters (one 1-letter string)
3562 string.bytes (one byte)
3563 string.characterpairs (two 1-letter strings)
3564 string.bytepairs (two bytes)
3565 string.utfcharacters (a one-character utf-8 string)
3566 string.utfvalues (a unicode code point number)
3568 * The top 256 values of the unicode range (starting at hex
3569 value "10FF00) are now reserved for byte output. Characters
3570 in that range will be written by luatex after substracting
3571 that offset. The net result is that \char"10FFA9 is written
3572 as byte value hex A9 = decimal 169 = copyright sign in latin1
3574 This trick allows byte-oriented output to \pdfliterals and
3575 \specials, but should be considered very experimental.
3577 * There is a new callback called 'process_input_buffer' that can
3578 be used to mutate the line buffer just before LuaTeX actually
3579 starts looking at it.
3581 * The statistics table now has readable items
3583 statistics.lasterrorstring
3584 that represent TeX's current input id and the last error string
3586 * The show_error_hook callback no longer receives any arguments
3588 * The statistics table now has readable items
3589 statistics.luabytecodes
3590 statistics.luastates
3591 statistics.luabytecode_bytes
3592 statistics.luastate_bytes
3593 for memory statistics reporting
3596 * The statistics table now has readable items
3597 statistics.luabytecodes
3598 statistics.luastates
3599 statistics.luabytecode_bytes
3600 statistics.luastate_bytes
3601 for memory statistics reporting
3604 ==============================================================
3605 Luatex snapshot-20061204 was released 20061204
3606 ==============================================================
3608 * The LuaTeX interpreter can now be run as a standalone lua script
3609 processor, by using a commandline like this:
3611 luatex --luaonly=luatools.lua
3613 * Luafilesystem (http://www.keplerproject.org/luafilesystem/ ) is
3616 * There are a total of eight new file discovery callbacks:
3625 this enhances the orthogonality of the callback system, nothing
3626 fundamental is changed.
3628 * There is a new callback called 'process_input_buffer' that can
3629 be used to mutate the line buffer just before LuaTeX actually
3630 starts looking at it.
3632 * The 'reader' and 'close' functions from 'open_read_file' now
3633 receive the table they are defined in as a function argument,
3634 that can be used as a per file localized data store.
3636 * Updated the Lua to the latest 5.1.1, with all known bug patches
3637 from the website applied as well
3639 * Runtime autoloading of lua .so files is now off on all platforms.
3641 * The statistics table now has readable items
3643 statistics.linenumber
3644 that represent TeX's current file name and line number
3646 * The support for user-defined type3 font .pgc files and the
3647 associated 'read_miscfonts_file' callback has been removed.
3648 (nobody used it anyway)
3650 * General cleanups to the source tree and build process.
3652 ==============================================================
3653 Luatex snapshot-20061023 was released 20061023
3654 ==============================================================
3656 * there was a missing callback: find_font_file
3657 * program_invocation_name was not set
3658 * buf_size could not be more that 300k
3661 ==============================================================
3662 Luatex snapshot-20061013 was released 20061013
3663 ==============================================================
3665 Last friday I uploaded a new snapshot and today I finally
3666 finished updating the manual to go with it. The changes all
3667 relate to startup, file i/o, and callbacks. The main achievement
3668 is: you can now run luatex without it *ever* initializing kpathsea.
3670 Because I am lazy, I have checked in the pdf of the manual
3671 as well, so that I can say: Please look at
3673 https://foundry.supelec.fr/plugins/scmsvn/viewcvs.php/manual/
3674 /luatexref-t.pdf?root=luatex&rev=148&view=log
3676 for all the details. :-)
3678 ==============================================================
3679 Luatex snapshot-20061002 was released 20061002
3680 ==============================================================
3683 * Some infrastructure changes:
3685 libs/slnunicode-0.9.1/ renamed to libs/slnunicode/
3689 (zziplib is using a different version of autofoo. I know I have
3690 messed up something in the build process, but the bit we need
3691 compiles ok so I've postponed attempting to fix it)
3693 * The callback logic has changed quite a bit.
3695 - all callbacks are now only possible in lua state 0.
3697 - The callback 'input_line' has disappeared, and is replaced by
3698 'open_read_file'. One of the return values of that callback
3699 is a table that defines a 'reader' function for line reading.
3701 See the manual for further information on this.
3703 - There are some new callbacks for the reading of various binary
3704 files. The current ones are:
3706 "read_ocp_file", "read_vf_file", "read_data_file", "read_font_file",
3709 The rest of the file types will follow soon (fonts, enc files, and
3712 - There are also some new callbacks that 'find' a file's pathname:
3714 "find_truetype_file", "find_type1_file", "find_image_file"
3716 here too, more will follow later.
3718 - the functions from io. that were copied to texio have been removed
3719 again. The new callbacks do not pass file pointers around, so
3720 they ere not longer needed
3722 - the 'open_write_file' is temporarily unavailable
3724 * startup.lua is now always loaded into lua state 0
3726 * The luazip library from kepler is linked in, so there the table 'zip'
3727 is accessible from all lua states.
3729 ==============================================================
3730 Luatex snapshot-20060922 was released 20060922
3731 ==============================================================
3733 * The texio table has gained a new function:
3735 tex_file = texio.open(filename)
3737 returns a file handle of a type that luatex can use
3738 internally (the return of io.open is unusable in callbacks
3739 because it will be garbage-collected at a random time)
3742 * In related news, there are two new callbacks you can define:
3744 callback.register('open_read_file', f)
3745 callback.register('open_write_file', f)
3747 where your function should have the following conventions:
3749 function f (number id_number, string asked_name)
3750 return boolean success, string actual_name, tex_file filep
3753 id_number: zero for the log or \input files or TeX's \read
3754 number incremented by one (\read0 becomes 1).
3755 asked_name: the user-supplied filename
3757 success: return false for error, true otherwise.
3759 The remaining two items are only looked at if you return true:
3761 actual_name: the true filename used (with extension!)
3762 filep: a file object opened though texio.open()
3765 * The tex.print function has an extra optional parameter:
3767 tex.print(ctt_id n, strings ...)
3769 This prints the strings using the catcode regime defined by
3770 \catcodetable n (assuming n is valid, see below)
3772 * The new function tex.sprint has the same lua conventions as
3773 tex.print, but behaces slightly different on the tex side:
3775 ** tex does not switch to the 'new_line' state (this implies
3776 that leading spaces are not ignored)
3777 ** no \endlinechars are inserted
3778 ** trailing spaces are not removed from the argument
3780 * Catcode tables are a completely new feature, that allows
3781 you to switch the current catcode regime in one simple
3784 \catcodetable <count>
3786 Switches to the use of a different set of catcodes (table),
3787 that is stored under the number <count>. Such a table has to
3788 be previously created using one of the two command below, or
3789 the number 0 (which is pre-inititialized)
3791 This command obeys normal grouping rules.
3793 \initcatcodetable <count>
3795 creates a new, global, independent catcode table with catcodes
3796 matching the code that are predefined by initex (tex -ini).
3798 This allocation is global
3800 \savecatcodetable <count>
3802 copies the current set of catcodes to a new, global, table
3803 with id number <count>. The definitions in this new table
3804 are all treated as if they were made in the outermost level.
3806 This allocation is global
3808 At the end of each grouping level, items within all existing
3809 catcodetables are restored, regardless of which one is the
3810 currently active table.
3812 Catcode table numbers cannot be larger than 0xFFFFFFF (228-1)
3814 * There is a new lua table: lua. It contains three read-only
3817 lua.id -- the id number of the instance
3818 lua.version -- a luatex version identifier string
3819 lua.startupfile -- the full filename (+path) of startup.lua
3821 and it also contains a read/write array:
3823 lua.bytecode[] -- lua executable bytecode
3825 This array can be used to save and restore lua functions
3826 across lua states. The accepted values are for assignments
3827 are functions and nil. Likewise, the retrieved value is
3828 either a function or nil.
3830 The contents of the lua.bytecode array is stored inside the
3831 format file, so it can also be used to preload lua code.
3834 * The format files are quire a bit smaller than before
3837 ==============================================================
3838 Luatex snapshot-20060915 was released 20060915
3839 ==============================================================
3841 * There is a new TEX primitive: \formatname. It is similar
3842 to \jobname (read-only). In initex, the expansion is empty,
3843 otherwise the expansion is the same as the \jobname from
3846 * the lua "tex" table has been expanded with a few of the 'convert'
3847 codes (read-only). The supported ones at this moment are:
3854 tex.pdfnormaldeviate
3861 This list looks haphazard, but it really is not. These are
3862 all the cases of the 'convert' internal command that do not
3863 require an argument.
3865 * The metatables of the subtables like tex.dimen[] etc. are now
3866 adjustable from lua (not that I recommend doing that;-)).
3868 * On the lua side, there is a new global value: "luaid"
3869 It holds the internal id number of this \directlua instance.
3871 * There is a new lua table, "callback", that has the single function
3872 "callback.register", used to register callbacks. This replaces
3873 the previous concoction (see my message about snapshot 20060901).
3876 callback.register(<callback name>,function (f) ... end)
3878 where the <callback name> is for the moment, either "input_line"
3879 or "show_error_hook".
3881 This function internalizes the callback function in such a way
3882 that you no longer have to worry about \luacallback (which has
3883 been removed), nor does it matter if you redefine a function
3886 The internal testing for callback presence is also quite a bit
3887 faster, thanks to this change. Callback assignments are global
3888 and the "input_line" always takes effect starting on the next
3889 input line to be read from an actual file.
3892 * \detokenizedlua has been removed. It is functionally replaced by
3893 the new function call tex.write("").
3895 Each argument to each call of tex.write () counts as an input
3897 ** all catcodes on that line are either 'space' (for " ") or
3898 'character' for all others.
3899 ** there is no \newlinechar appended.
3901 * The implementation of tex.print() has changed as well:
3903 ** the very last tex.print() line from a \directlua
3904 will no longer have a trailing \newlinechar
3905 (this is very convenient when \directlua is used
3907 ** tex.print() is quite a lot faster than before, and the total amount
3908 of returnable text from a \directlua is now only limited by
3909 available system RAM. However, each separate tex.print ()
3910 argument has to fit in TeX's input buffer.
3912 * The new primitive \luastartup can be set inside the format file
3913 to specify the lua instance number in which a possible runtime
3914 startup.lua script is executed (initex always uses 0)
3916 * There is a new primitive \scantextokens. Differences with
3917 eTeX's \scantokens are:
3919 ** the last line (usually only) from \scantextokens
3920 does not have a \newlinechar
3922 ** \scantextokens never raises an eof error.
3924 This means things like
3927 {\scantextokens{\ifnum1=1 true}\else false\fi}
3929 are legal input (but potentially dangerous!).
3932 local d = tex.dimen["unknowndimen"]
3933 'd' will now become "nil" instead of raising an error
3936 tex.dimen["unknowndimen"] = d
3937 is still (and probably will remain) illegal
3939 ==============================================================
3940 Luatex snapshot-20060908 was released 20060908
3941 ==============================================================
3943 * BIG CHANGE: \directlua now runs \scantokens internally.
3945 There is no longer a need to call scantokens yourself, the
3946 tex.print() output is now fed straight into a pseudo file.
3947 This is quite a bit faster as well as easier to use, but
3948 just in case you want it, the old behaviour is still present,
3954 * The texio library now has its own (partial) set of I/O commands,
3955 so that the standard lua io library is back to the distributed
3956 state (no more patched garbage collector)
3958 Note: This is really a very small change (it should not have any
3959 impact on wellbehaved input files), but I attempt to be complete
3960 in these notes, since there is no official documentation yet.
3963 * There is a new standard library available: kpse
3965 The most important function in that library is find_file:
3967 string = kpse.find_file(string filename
3969 [,boolean mustexist])
3971 both "type" and "mustexist" are optional, so the function
3972 has from one upto three arguments.
3974 "type" is like the '-format' argument of kpsewhich. You can
3975 run 'kpsewich -h' for a list. The default type is "tex".
3977 "mustexist" is like '-must-exist', and the default is false.
3978 If you specify "true" (or a nonzero integer), then the kpse
3979 library will search the disk as well as the ls-R databases
3981 The new library also has three other functions that map
3982 straight to kpsewhich commandline options:
3984 string = kpse.expand_path(string)
3985 string = kpse.expand_var(string)
3986 string = kpse.expand_braces(string)
3988 * There is a second callback possibility:
3990 texio.show_error_hook(string message,
3991 string|number indicator,
3994 This command is run from inside the TeX error function, and the
3995 idea is to allow you to do some extra reporting on top of what
3996 TeX already does (none of the normal actions are removed).
3998 "message" is the formal error message tex has given to the
3999 user (the line after the "! ")
4000 "indicator" is either a filename (when it is a string) or a
4001 location indicator (a number) that can means lots of different
4002 things like a token list id or a \read number.
4003 "lineno" is the current line number
4005 This is an investigative item only, comments are welcome but do
4006 not take the syntax seriously.
4008 The final goal IMO is the total replacement of TeX's error
4009 handling routines, but that needs lots of adjustments
4010 in the web source because TeX deals with errors in a somewhat
4011 haphazard fashion (it needs unification first). The current
4012 hook is only for 'testing the water'.
4014 * It is now possible to use named items in the
4020 subtables, so you can have
4022 tex.count.scratchcounter = 0
4023 local enormous = tex.dimen["maxdimen"]
4025 Luatex looks up the value for you on the fly. You have to use a
4026 valid \countdef (or \dimendef, or \toksdef), anything else will
4029 In a normal TeX file, you don't do \dimen\maxdimen, but the
4030 lua syntax seems to be a bit cleaner to me. The intention is
4031 to evntually also allow \chardefs and macros that expand
4032 into a number (todo)
4035 * The tex table has also been extended with a large list of internal
4036 parameters (partially read/write). It is possible to access
4037 about every primitive that you can use after \the *and* is a
4038 single token. So there is
4040 integer = tex.tracingcommands (\the\tracingcommands)
4041 integer = tex.prevgraf (\the\prevgraf)
4042 string = tex.output (\the\output)
4044 etc. for all of the internal parameters, but not the items
4045 that need extra arguments (like \the\scriptfont )
4047 The subset comprising simple integer and dimension registers
4048 are writable as well as readable (stuff like \tracingcommands
4051 The fact that both lists are still quite limited is a result of
4052 the very different types of things that can occur after \the and
4053 also on the LHS of an assignment. The remaining primitives will
4054 be filled in when there is a real need or implementation becomes
4055 simple, whichever comes first.
4059 ==============================================================
4060 Luatex snapshot-20060901 was released 20060901
4061 ==============================================================
4063 All changes are related to lua this time, and most are quite unstable
4064 / experimental. But first the things that are stabel/fixed bugs:
4066 * A VF loading bug that turned up in some of Hans' fonts
4069 * A small series of bounds checking fixes to \ocplist has been
4070 added to prevent the system from crashing due to array indexes
4071 running out of bounds.
4073 * The Lua file searching paths are now fixed. The search path for lua
4074 script files now contains the following items (tried in order)
4075 1. the local directory:
4077 (for document-specific files)
4078 2. the items from the expansion of kpathsea's $TEXMFSCRIPTS variable,
4079 but only the parts containing 'lua' as a subpath:
4080 $TEXMFSCRIPTS<lua>/?.lua
4081 $TEXMFSCRIPTS<lua>/?/init.lua
4082 (for format-specific files)
4083 3. the $SELFAUTOPARENT sibling directory named 'lib'.
4084 $SELFAUTOPARENT/lib/lua/5.1/?.lua
4085 $SELFAUTOPARENT/lib/lua/5.1/?/init.lua
4086 (for files that are not related to tex)
4088 The search path for dynamic libraries has only
4089 1. the local directory:
4091 (for document-specific files)
4092 2. and the $SELFAUTOPARENT sibling directory named 'lib'.
4093 $SELFAUTOPARENT/lib/lua/5.1/?.so
4095 (of course the extension is .dll on windows, but .dlls do not
4096 work at the moment so it will not do you much good)
4098 * There are two functions available within a new table called
4100 texio.write (luastring)
4101 texio.write_nl (luastring)
4102 both write the luastring to the same location(s) TeX writes
4103 its stuff. So if \batchmode is on, it writes only to the
4104 log, inside a \write, it prints to the current write file,
4107 A read|write interface to TeX's "file selector" will
4110 * At startup, luatex searches for a script named
4112 in the path list I explained above. If such a file exists, it is
4115 This happens right before the first input file needs to be opened
4116 (that is after format loading, but before any \everyjob tokens).
4118 From within the script, you can check the value of
4122 that is the 'format identification' as used by TEX. When the variable
4123 is equal to nil, luatex in in 'initex' mode, otherwise it will be
4124 something like: " (format=plain 2006.9.1)"
4127 Now for the experimental portion: callbacks. Here is what I have done
4130 * The main reason for wanting startup.lua is file (input) re-encoding.
4131 For this purpose, it is now possible to set up a callback for
4134 If you attach a Lua function to
4138 then from the next input line onwards, luatex will run that
4139 function whenever it needs a new input line from a text file.
4141 Your function will receive a file handle as argument, and
4142 should return either a string or nil (with nil signalling that
4143 the end of file has occurred).
4145 The trivial case is simply this:
4150 texio.input_line = reader
4153 Warning: The implementation is not totally finished yet. For the
4154 moment the file handle ("f" in the example) is a normal lua file,
4155 with a simple but important restriction: you cannot alter its value.
4156 You cannot f:close() it, or assign it a different value. luatex
4157 will eventually close the file itself.
4159 The restriction is a side-effect of a synchronisation problem with
4160 the lua garbage collector. Because of this, it also was necessary
4161 to turn off the automatic file closing code for normal lua io
4162 files (In other words: you have to close yourself all the files
4163 you opened yourself, and you should not close any files you did
4166 In the near future, "f" will become a special 'texio' file object
4167 and the needed functionality from the normal io library will be
4168 reimplemented. Along with that change, there will also be a callback
4169 to open (i.e. find) files, and a simple interface to the compiled-in
4170 kpathsea to use within that callback.
4173 ==============================================================
4174 Luatex snapshot-20060825 was released 20060825
4175 ==============================================================
4177 The main change in this snapshot is that it uses far less memory.
4178 luatex -ini on my linux machine went from 326Mb (last week) to
4179 93Mb (now), and "texexec luatex" now ends at 184Mb instead of
4182 This is achieved by two big changes:
4184 * The \mathcode, \delcode, \catcode, \sfcode, \lccode and \uccode
4185 tables are now sparse arrays that are implemented in C. They
4186 are no longer part of the TeX "equivalence table" and because
4187 each had 1.1 million entries with a few memory words each, this
4188 makes a major difference.
4190 See mathcodes.c and textcodes.c if you are interested in the
4191 gory details, but be warned: the code is still extremely
4192 rough and ugly. In particular, the dump and undump routines
4193 are far from optimal, resulting in somewhat larger format files
4194 than before (approx 1.3Mb larger with unicode-letters loaded,
4195 10k without); and the assignments do not show up when using
4196 the etex tracing routines \tracingassigns and \tracingrestores
4197 (code simply not written yet)
4199 * Single-character commands are no longer "special" internally,
4200 they are stored in the hash just like the multiletter csnames.
4203 ==============================================================
4204 Luatex snapshot-20060818 was released 20060818
4205 ==============================================================
4207 The snapshot is up to par with Aleph-RC4 (from texlive devel)
4208 and the latest pdftex beta (even newer than 20060811). However,
4209 there are some differences, to summarize:
4211 * There is no pool file (all strings are embedded)
4213 * -8bit and -translate-file are silently ignored
4215 * There is no mltex nor enctex (conflicts with aleph)
4217 * The tex functionality is always present and enabled
4218 (but see below about TeXXeT), so the asterisk or
4219 -etex switch for initex is not needed
4221 * "plus 1 filllllllll" does not generate any errors from TeX
4223 * TeXXeT (from eTeX) is not present, so the primives
4231 * The experimental pdftex regex match operations are removed,
4232 because that feature does not make much sense when lua is
4233 available so the primitives
4238 * The input translations from Aleph are not implemented, the
4239 16 related primitives are all missing
4245 \noDefaultOutputMode
4248 \DefaultInputTranslation
4249 \noDefaultInputTranslation
4252 \DefaultOutputTranslation
4253 \noDefaultOutputTranslation
4254 \noOutputTranslation
4256 All file IO assumes UTF-8, except that all the low-ascii
4257 controls except TAB, CR en LF are written to the terminal
4258 using ^^ notation (even these are binary in the log file).
4260 * Input characters can use the full range of Unicode,
4261 but it probably only makes sense to use values above
4262 the base plane for \mathcode and \catcode assignments,
4263 since the fonts as well as the hyphenation patterns
4264 are strictly 16-bit still.
4267 \pdfpagewidth and \pagewidth,
4268 \pdfpageheight and \pageheight,
4269 \fontcharwd and \charwd,
4270 \fontcharht and \charht,
4271 \fontchardp and \chardp,
4272 \fontcharic and \charic,
4273 are all aliases of eachother.
4277 clears a marks class completely.
4279 * The experimental pdftex primitives
4284 and provided without the extra 'pdf' prefix, so they are
4292 * I probably forgot to mention some things :-)