2 This file is in the public domain.
4 ==============================================================
5 Luatex beta-0.80.0 was released 20150319 (5195)
6 ==============================================================
8 * New library newtokenlib. It will replace the current token lib.
9 * Fixed a bug on the normal random generator for double/decimal/binary
11 * Several others bugs fixed.
14 ==============================================================
15 Luatex beta-0.79.3.1 was released 20150122 (5140)
16 ==============================================================
18 * Fixed a bug in mp.w with a wrong input that gives a seg. fault.
22 ==============================================================
23 Luatex beta-0.79.3 was released 20150121 (5130)
24 ==============================================================
27 * It's now possible with the MinGW compilers to build luatex and luajittex as DLL
28 for Windows 32bit/64bit. The files are:
29 libkpathsea-6.dll luajittex.exe luatex.exe texlua52.dll texluajit.dll
30 In the next release the build.sh script be updated; for the moment just add
31 "--enable-shared -disable-native-texlive-build " after --disable-all-pkgs
33 Building as DLL was tested only for Windows.
35 * When possibile symbols in the exe are now hidden:
36 this should avoid conflicts with the loading of dynamic shared object.
38 * several bugfixes and improvements. The patches for MetaPost
39 fix seg. faults occourred with wrong inputs.
41 mp_get_numeric_value, mp_get_string_value, mp_get_boolean_value
42 works if the value is a variable (i.e. not an internal variable,
43 a loop variable and a macro argument);
44 only mp_get_numeric_value now has support for loop variable
45 and internal variable (but still not for macro arguments).
48 ==============================================================
49 Luatex beta-0.79.2 was released 20141111 (5082)
50 ==============================================================
53 * WARNING: the structure of the format file is changed.
54 After the Web2C \TeX's magic constant: "W2TX" there is now
55 a FORMAT_ID, a 32bit field that cannot be between 0 and 256 (included)
56 so that there are no conflicts with the preexisting structure
58 The value can be seen with --debug-format and currently is
59 907 (the sum of the values of the bytes of the ASCII string "don knuth").
61 * There is a new set of lua functions for StructElement and Attribute,
62 convenient (even if not indispensable) for tagged pdf.
65 * several bugfixes and improvements.
68 ==============================================================
69 Luatex beta-0.79.0 was released 20140328 (4960)
70 ==============================================================
72 * The luafontloader now returns 'tsidebearing' glyph values
73 for OT/TT fonts, if applicable.
75 * new lua variables: stats.luatex_hashtype, stats.luatex_hashchars,
76 stats.lastluaerrorstring; the luajittex string hash method is now
77 lua 5.1 compliant which gives better results for similar strings
79 * new lua functions: tex.init_rand(), tex.uniform_rand(),
80 tex.normal_rand(), tex.lua_math_randomseed(), tex.lua_math_random(),
81 tex.show_context(); these helpers make luatex and luajittex compatible
83 * In the lua node interface, there were often issues with rubbish
84 in (especially) 'prev' fields because luatex itself never looks
85 at those values. This is now cleaned up to prevent weird stuff
86 happening inside lua node processing code.
88 * pdf.pageattributes, pdf.pagesattributes, pdf.info, pdf.catalog,
89 pdf.names and pdf.trailer now behave consistent and can be used
90 to add these properties at the lua end in addition to their \pdf*
91 counterparts atthe tex end; there are now pdf.get* and pdf.set*
92 commands for them too (in future versions the old ways can become
95 * new accessors pdf.geth, pdfgetv, pdfgetpos, getgetmatrix as well
96 as pdfhasmatrix helpers (in future versions the direct pdf.h and
97 pdf.v accessor can become obsolete)
99 * the pdf.pdf* variables have been removed (they were already
100 obsolete for some years)
102 * a new properties mechanism for associating lua tables with nodes
103 that get cleaned up when nodes a freed (see manual for details)
105 * several improvements to the way temporary (backend) data is stored
106 at the lua end (better protection, more consistent)
108 * a 'l' type for user nodes that holds a lua variable (can be set
111 * if a late lua node is set at the lua end the string value can be
112 a function as well which is then executed during serialization to
115 * Various small speedups
117 * Various smallish fixes to the node direct interface
119 * LPeg is now at version 0.12
121 * Some small fixes to the CFF (font) parsing
123 * Font file inclusion reporting messages on the terminal now
124 comply to the texconfig.trace_file_names setting
126 * Removed some of the additional luafontloader.info() return
127 information that was added in 0.78.2, but could not work
130 * new primitive \luafunction (see manual), with associated
131 lua.get_functions_table() function
133 * lua error message reporting has been altered a bit to make
134 the distinction between \directlua and other lua source code
137 * Additional pdf document data functionality in the 'pdf' table
138 has been cleaned up internally
140 * Additional pdf destination names can now be set via lua.
142 * New callbacks: finish_pdfpage, show_error_message,
143 show_lua_error_hook, start_file, stop_file
145 * Handling of \tracinglostchars is fixed
147 * Embedded metapost library version is now 1.900
149 * luajittex is now included in the distribution. One can use
150 buildjit.sh to build both luatex and luajittex, where
151 supported by the platform
153 * Synchronization with the TeXLive sources updated the following
155 * libpng is now 1.6.10
156 * poppler is now 0.25.2
158 ==============================================================
159 Luatex beta-0.78.2 was released 20140113 (4748)
160 ==============================================================
162 * Extended luafontloader's info() function to include data
163 from the 'pfminfo' and 'names' structure.
165 * Fixed a bug in the luafontloader library that made loading
166 some fonts extremely slow (LastResort.ttf)
168 * Removed a recent extension in the luafontloader library that
169 made loading fonts with lots of glyphs slow (ArialUnicoce.ttf).
170 Note: the extension made sure that there were no duplicate
171 glyph names in the font after loading.
173 * Restored --recorder output for lua files (dofile/loadfile/io.open)
175 * One-at-a-time pattern adding from lua used to require enormous
178 * luatex's fontloader.to_table() no longer reports 'altuni' table
179 information for alternates that are solely driven by the font
180 encoding. This fixes loading time issues for fonts that fill
181 encodings by copying a single glyph many times, like e.g.
182 LastResort.ttf from Apple.
184 * The datestamp no longer appears in any banners. The associated
185 \luatexdatestamp primitive is deprecated and will be removed
188 * Synchronization with the TeXLive sources updated the following
190 * cairo is now 1.12.16
191 * pixman is now 0.32.4
194 * poppler is now 0.25.0
196 * That same TL synchronization also fixes these issues:
197 * Always write "\nendstream" to the PDF for PDF/A-1b compliance.
198 * Large file support (>4GB) in Lua
199 * Big images could overflow on systems where sizeof(long)=4.
200 * In writing CID CFF fonts to the PDF, and end_dict() was missing.
201 * Unknown 'post' table versions (found in some broken ttf/otf
202 fonts) are now treated as-if they specified version 3.0.
203 * Fix crashes on 32-bit systems caused by bad C header inclusion
205 * Handle '--luac' and '--luaconly' properly
206 * luatex is now released under GPLv2+, not just GPLv2.
207 * luatex can now find .ofm metric files even if the extension
208 is not given explicitly.
210 * node.unset_attribute() was broken in 0.78.0
212 * The UTF-8 commandline patch from 0.78.0 for Win32 was removed
213 again (did not work properly)
215 ==============================================================
216 Luatex beta-0.78.0 was released 20131231
217 ==============================================================
219 * Instead of using expanded fonts, just calculate the expanded
220 width of glyphs where needed, and carry expand info in the
221 glyph nodes (all based on Hans' suggestions). All font expansion
222 functions are disabled and most are removed.
224 * New, faster (but limited) direct node access from lua, see
225 the manual for details
227 * Support for Apple Advanced Typography (AAT) information in
230 * Extended build script for mingw/msys (includes 64-bit support)
232 * Various patches from/via Akira Kakuta for better Win32
235 * Fixes for some bugs in de pdfscanner library (mostly related
238 * Maximum hyphenated word length is now 64Kb characters.
240 * Various patches from Khaled Hosny and Luigi Scarso for the
241 luafontloader subsystem
243 * Fix for a crash when re-dumping formats
245 * Fix for a Selene unicode library bug where some characters in
246 UTF-8 were incorrectly flagged as having the 'Space' property
250 ==============================================================
251 Luatex beta-0.76.0 was released 20130405
252 ==============================================================
256 * Small patches from TeXLive 2013, as well as an update to the
257 latest libraries (libpng, poppler, etc.)
259 * Speed up printing (of TeX strings) to the terminal and log.
261 * New lua function node.end_of_math().
263 * Fixed a memory leak in the lua function pdfscanner.scan().
265 ==============================================================
266 Luatex beta-0.75.0 was released 20130301
267 ==============================================================
271 * New expandable primitive \Uchar.
275 * New version of lnodelib.c with speedups by Hans and Luigi.
276 Also added some extra sanity checks to the Lua node field
279 * Support 'umath' in tex.extraprimitives(), so that formats can
280 make the \Umath* primitives unprefixed, now that they will be
281 provided by XeTeX as well.
283 * Removed a bunch of deprecated primitives
284 * \AlephVersion, \Alephrevision, \Alephversion, \Alephminorversion
285 * \OmegaVersion, \Omegarevision, \Omegaversion, \Omegaminorversion
286 * \omathcode, \odelcode, \omathchardef, \omathchar, \omathaccent,
287 \odelimiter, \oradical
288 * \Umathbotaccent, \Umathaccents
290 * Fix large file support.
292 * Fix Lua's loadfile().
294 * Removed the cidmap callbacks again (let that be done by user lua
295 code after the fact).
297 * Removed the fatal error on fonts where num_glyphs is too high,
298 as that problem is actually harmless.
300 * Some compilation issues under Win32 and Solaris resolved.
302 * Allow math extender objects to be zero width.
304 * The 'epdf' library has been extended to deal with finding and
305 saving embedded files (catalog:numEmbeddedFiles() and catalog:
306 embeddedFile, new EmbFile object).
308 ==============================================================
309 Luatex beta-0.74.0 was released 20121224
310 ==============================================================
315 There are no patches to the core Lua files; a future version
316 of luatex will switch to loading the regular lua 5.2 dynamic
317 library instead of depending on a statically compiled
320 * A bleeding-edge version of luasocket is included, as there
321 is no 5.2-compatible official release yet.
323 * A new lua extension is the two-argument version of
324 string.dump from Luajit:
326 string.dump(function f, [boolean strip])
330 * The implied existence of the following lua libraries is now
333 debug, unicode.*, luazip, lfs, lpeg, zlib, gzip, md5,
334 socket.*, profiler, epdf, fontloader, mplib, and
337 Future versions of luatex will load these modules on demand
338 from dynamic libraries.
340 Please update your sources to include a 'require' line for
341 each of the library modules mentioned.
343 * Two new callbacks: find_cidmap_file and load_cidmap_file
344 (used by the fontloader to discover .cidmaps)
346 ==============================================================
347 Luatex beta-0.72.0 was released 20121210
348 ==============================================================
352 * update various used libraries, including mplib 1.770,
353 poppler 0.21, libpng 1.5, and lpeg 0.10.2.
355 * new 'pdfscanner' lua library.
357 * various OpenType math fixes, including \Umathcharnumdef.
359 * improved placement of bottom accents.
361 * various other small fixes that have accumulated over the past
364 ==============================================================
365 Luatex beta-0.70.1 was released 20110519
366 ==============================================================
370 * fixed: recorder file location from TL (Akira).
372 * fixed: missing newline on 'No output' line.
374 * fixed: relative names in synctex file.
376 * fixed: 16bit png images in generated %!PDF-1.4.
378 * fixed: building with (installed) libpng < 1.5.0
380 * fixed: year in --version output.
382 * fixed: box output to synctex.
384 * fixed: FontDescriptor for non-embedded OpenType fonts has an
385 invalid FontFile3 entry (#654)
387 * fixed: crash on non-existent images.
389 * fixed: small memory leak in the ipc code.
391 * fixed: tex.print() and tex.sprint() don't recognize -2 as the
392 first argument (#659)
394 ==============================================================
395 Luatex beta-0.70.0 was released 20110506
396 ==============================================================
400 * fixed: various changes needed for libpng 1.5.2.
402 * fixed: node.fields() for nodes without subtype.
404 * fixed: non-argument use of os.execute().
406 * fixed: tex.[s|t|]print() with invalid catcode table arguments.
408 * fixed: recorder filename location with --output-directory.
410 * fixed: display alignment in TRT mode.
412 * luatex now uses the standard synctex files from Jérome Laurens.
415 ==============================================================
416 Luatex beta-0.66.0 was released 20110412
417 ==============================================================
421 * fixed: linebreak_filter doesn't do its default job when
422 tex.linebreak is used
424 * fixed: \escapechar ignored by \meaning
426 * fixed: wrong px default
428 * fixed: font kern attribute inheritance
430 * fixed: "nop" unrecognized in virtual fonts
432 * fixed: assertion failure in dviluatex when font ptmr8t used
434 * fixed: tex.settoks for with strings with embedded zeroes
436 * fixed: an indexing problem with nonexistent font glyphs
438 * fixed: some crashes and other bugs on the 'subtype' and 'prev'
439 fields (not all node types have those fields)
441 * fixed: crash on token.csname_id ("")
443 * fixed: initialize the statically allocated node's type ids
445 * fixed: fencepost error in math parameter counting
447 * fixed: math family numbers > 255 are allowed
449 * fixed: compilation failure on Hurd
451 * fixed: a small bug leading to displacements when reading
454 * fixed: \directlua followed by \pdfximage generates error if
457 * fixed: a problem with \vadjust pre in alignments
459 * fixed: a lua stack growing problem in the backend in 0.65.0,
460 resulting in an inability to create more than a few thousand
463 * fixed: inclusion of Scribus-generated pdfs
465 * adapt: the default form margin is now zero (was 1bp before)
467 * adapt: libpng 1.4.4, zzuplib 0.13.60, mplib 1.504
469 * adapt: small changes to the build system and new imports from
470 the texlive repository
472 * feature: new function node.currentattr() queries the current
473 active attribute list
475 * feature: Lua font loading; ignore unknown enumeration keys in
478 * feature: JPEG 2000 image support
480 * feature: continuing work on the 'epdf' library
482 * doc: the 'epdf' lua library is now documented
484 * doc: various other manual corrections
487 ==============================================================
488 Luatex beta-0.65.0 was released 20101213
489 ==============================================================
493 * The Aleph and Omega version primitives are deprecated.
495 * The Apple Snow Leopard Truetype font collections now work
498 * Libpng has been updated to 1.4.4, and zlib to 1.2.5.
500 * New lua functions node.next() and node.prev().
502 * The already deprecated for some time node.protrusion_skipable()
503 function has been removed.
505 * fontloader.apply_featurefile() and fontloader.apply_afmfile()
506 now return nil,<errortable> on failure.
508 * The various node list fields in the lua node interface have
509 been renamed from 'list' to 'head', e.g. tex.box[0].head,
510 and the 'list' name is deprecated. For now, the deprecation
511 is silent, as 'list' will stay for quite some time. Please
512 update your lua source as soon as possible, though.
514 * The call node.type(<node>) now returns "node". The existing
515 functionality is otherwise unchanged.
517 * Luafilesystem has been updated to 1.5.0. NOTE: there is an
518 incompatible change in the directory iterator method.
520 * The restriction on linebreak_filter has been eased: at least one
521 horizontal box should be returned, but that is not necessarily
522 the last node any more.
524 * Backward compatibility has been restored for \meaning\mathchar
526 * node.first_character() has been renamed to node.first_glyph()
527 to better match its actual functionality.
529 * The \Umathaccent primitive now supports both/bottom keywords,
530 and \Umathbotaccent / \Umathaccents are now deprecated.
532 * The \Umathaccent primitive now also supports the fixed keyword,
533 which supports non-growing math accents even if the font says
534 there are extensible variants.
536 * Ongoing work on the epdf library.
540 * Assignment to \dimen65535 was broken earlier.
542 * <box>.head.prev is now always initialized to null (0).
544 * luatex -lua=<script> '\relax' no longer exits immediately,
545 instead going into interactive mode as it should.
547 * The \jobname was initialized wrongly for input file names
548 with multiple dots in them.
550 * The synctex file is now written in the right place when
551 --output-directory is given.
553 * \letterspacefont could cause crashes, especially when combined
556 * Luatex would crash on linux32 systems if it was build in an
557 environment where LFS (>2GB files) was enabled by default.
559 * Node lists created by node.copy_list() could not be hyphenated
560 due to an assertion error.
562 * Synctex support was partially broken since 0.60.0.
564 * With OpenType math fonts, accents with multiple parts
565 (like the \vec arrow) forgot to include all parts if the
566 accentee was too narrow.
568 * With OpenType math fonts, accents over any class except 0 and 7
571 * kpse.lookup("plain", {all = true}) was broken in kpathsea
572 itself (no extension given as well as --all specified).
574 * A FontForge bug made Cambria Math accents look bad, and the
575 placement of math top accents did not allow a marker at the
576 origin (patches by Stefan Philipp)
578 * Cut&Paste from PDF was sometimes broken due to bad ToUnicode map.
580 * Many small manual improvements (thanks to Paul Isambert)
582 * An other bugfix to lpeg 0.9 (from Roberto Ierusalimsky)
584 * Some small fixes to writet1.w (from Han The Thanh)
586 * A build failure because of bad libz configuration on Win32
588 ==============================================================
589 Luatex beta-0.64.0 was released 20101112
590 ==============================================================
594 * New lua functions pdf.refobj(), pdf.maxobjnum() and pdf.objtype()
596 * New lua function node.is_node()
598 * The max_strings configuration variable's maximum value is
599 raised to be identical to texlive's maximum (2097151), and
600 same for param_size (32767).
602 * The embedded mplib is now 1.503.
604 * Minor cleanups in the output of fontloader.to_table():
606 - removed out-of-range altuni's from the output
607 - don't dump the extra encodings, just the actual font encoding
608 - export the encoding's name also as 'enc_name' at one level up
609 - no longer exporting unset macstyles, nor zero uniqueids
610 - fix creationtime and modification time
612 * Ongoing work on the epdf library
616 * Fix a bug where an explicit hyphen prevented hyphenation for the
617 whole rest of the paragraph
619 * Internal font copying forgot to copy the last font dimen
621 * os.selfdir() is now documented
623 * patch quad (\fontdimen6) in \letterspacefont to be compatible
626 * Multi-page pdf inclusion was very slow in 0.63.0
628 * Some extra checks added to the handling of glue_spec node
631 * Some node.prev pointers have been corrected (but this is not
634 * A small fix to lpeg 0.9.
637 ==============================================================
638 Luatex beta-0.63.0 was released 20100909
639 ==============================================================
643 * Drop tex.ht[], tex.wd[], tex.dp[].
645 * Drop OCP support (and associated primitives).
647 * Add tex.catcode[], tex.lccode[], tex.sfcode[], tex.uccode[],
648 tex.mathcode[] and tex.delcode[] and associated functions.
650 * Add CIDset tables to the output pdf where appropriate.
652 * Added a 'string' field to late_lua nodes on the lua side. This
653 field does not convert the assigned string to a tokenlist.
655 * The result of fontloader.open() now has some virtual accessors
656 (as well as fontloader.to_table).
658 * There is now a `short reference' in the manual folder
663 * Fix a crash on an empty font (bugreport #468).
665 * Fix a crash for extremely long pattern arguments.
667 * Fix a crash on bad virtual character arguments in lua.
669 * Fix hyphenation exceptions.
671 * Prevent linebreak between initial local_par paragraph whatsit
672 and a following skip (bugreport #437).
674 * Fix placement of scripts on textstyle big operators in MATH
675 fonts (bugreport #466).
677 * Fix a crash on the return value of MPlib's 'postscript'
680 * Fix a crash on \leftghost & \rightghost in math mode.
682 ==============================================================
683 Luatex beta-0.62.0 was released 20100823
684 ==============================================================
688 * LuaTeX now uses libpoppler (0.12.4) instead of xpdf.
690 * All backend functions now report what file they were searching
691 for whenever a file cannot be found.
693 * Input-ed lua files are now mentioned in the fls file if
694 the --recorder switch is specified on the command line.
696 * Paragraph indentation hlist nodes and hlist and vlist nodes
697 generated by alignment rows and cells now have a subtype
698 (3 for indent box, 4 for rows/columns, 5 for cells).
700 * The 'epdf' lib is in active development and still growing.
702 * The 'fontforge' table is finally removed (was deprecated
707 * A new mplib import fixes two bad bugs in mplib:
708 - string equality test was wrong
709 - type declarations could delete pre-existing variables
711 * PNG images with transparency could create random size
712 differences in the generated PDF.
714 * In some special cases, font expansion could cause wrong
715 spacing in the generated PDF.
717 * \letterspacefont was broken since a very long time.
719 * The node subtype of the \leftskip and \rightskip glues was
722 * Some memory leaks have been removed.
724 * Various manual fixes.
726 ==============================================================
727 Luatex beta-0.61.0 was released 20100728
728 ==============================================================
732 * New lua library 'epdf' for introspection of PDF inclusions,
733 see the manual for details.
735 * Mplib version 1.502 is now included (which is still beta,
738 * new "finish_pdffile" and "pre_dump" callbacks.
740 * new function pdf.pageref()
742 * In the lua 'tex' library: assignment to internal glue
743 parameters is now allowed.
745 * New lua function tex.error().
749 * Fix for crashes on fonts with bad Panose values.
751 * Fix for a box placement bug that could sometimes cause text
754 * Fix for a few small PDF/A1-a compatibility bugs.
756 * Fix \letterspacefont.
758 * Fix \Ustopdisplaymath in combination with aligned displays.
760 * In math delimiters, the last of a chain of predefined sizes
761 was always ignored if there were also extensible parts.
763 ==============================================================
764 Luatex beta-0.60.2 was released 20100701
765 ==============================================================
769 * Various small portability fixes, especially for non-gcc
772 * Updated synctex from Jerome Laurens.
774 * fix bug #406: \pdfliteral hinders hyphenation.
776 * fix pdf overprinting bug (related to \pdfliteral).
778 * patch from Akira Kakuto that ensures that only absolute commands
779 that are inside the %PATH% will be executed in win32's restricted
782 * fix a buffer overflow in luafontloader.
784 * fix cross-platform share-ability of generated formats.
786 * fix a few typos in the manual.
788 * fix trashing of the null glue spec by attribute reference code.
790 * documented the deprecated state and brokenness of otp processing.
793 ==============================================================
794 Luatex beta-0.60.1 was released 20100428
795 ==============================================================
799 * renamed node.skipable() to node.skippable().
801 * More git discovery patches in getluatexsvnversion.sh.
803 * Added --warnings=[no|min|yes|max|all] option to build.sh.
805 * While cross-compiling, build.sh now adds an extra linker switch
806 to allow win32 exes to use 3G instead of 2G of virtual memory.
810 * os.exec() & os.spawn() handled the environment differently from
811 os.execute() on Win32 (patch from Tomek)
813 * Builds with --enable-ipc were broken.
815 * Assigning and acquiring \fontdimen s from TeX code was broken.
817 * An initial attempt at fixing bug #372 (\predisplaydirection).
819 * An attempt to fix \eqno/\leqno placements in mixed direction
822 * Our local xpdf patch is reverted, it is not needed any more.
824 * The os.selfdir variable was not documented, as well as broken
827 * Fix "\input tikz hello \bye" bug, plus fix one sign error.
829 * Fix handling of lua script files with UNC names.
831 ==============================================================
832 Luatex beta-0.60.0 was released 20100404
833 ==============================================================
837 * os.name now knows about CYGWIN (from Elie Roux)
839 * Internal handling of direction specifiers is faster now.
841 * Each glyph node now has three new virtual read-only fields:
842 width, height, and depth (values in scaled points, of course)
844 * There are new functions node.protrusion_skipable() and
845 tex.badness() (useful for paragraph breaking in lua)
847 * Also new: tex.linebreak(). See the manual for details.
849 * All lua errors now report file and line numbers to aid in
852 * Import of metapost 1.211.
854 * pdf.pdfcatalog will be replaced soon by the new pdf.catalog
855 pdf.pdfinfo will be replaced soon by the new pdf.info
856 pdf.pdfnames will be replaced soon by the new pdf.names
857 pdf.pdftrailer will be replaced soon by the new pdf.trailer
859 * pdf.pdfmapfile and pdf.pdfmapline are replaced by the new
860 pdf.mapfile() and pdf.mapline() functions. (a function interface
861 fits these parameters better because they never return anything).
863 * New read-write lua variables: pdf.pageattributes, pdf.pageresources,
866 * getluatexsvnversion.sh now correctly detects git-svn and still
867 manages to find a valid SVN revision number (from Patrick Gundlach)
869 * Many of the source files have been converted to CWEB.
873 * GNU libtool is now used to solve the various technical issues with
874 dynamic loading of lua modules.
876 * Error detection in scan_integer_part was wrong due to missing
877 initialization of OK_so_far (spotted by Javier Mugica)
879 * Synctex was broken in 0.51-0.52.
881 * \lastlinefit was broken since ... well, nearly forever.
883 * Reading of binary files with length zero was broken.
885 * Trapping of unitialized rules (this was for sloppily created
888 * pdf.immediateobj('streamfile') was broken on 64-bit platforms.
890 * tex.linebreak did not take the given left and right skip, but
891 instead used the current TeX-side values (bug #356).
893 * the found 'MAKE' command in build.sh is now fed into configure to fix
894 problems with that not finding GNU make even when it is actually
897 * dofile(<nil>) and loadfile(<nil>) in batch mode now give an
898 error and continue instead of pointlessly waiting for user input.
900 * Reverted commit #3417 (the buildpage experiment) as it causes bad
901 things to happen when items are waiting during page breaks.
903 * Overrule loaders[4] in --safer mode, make require() behave
904 closer to normal lua 5.1, and add some nicer error messages
905 (based on an email and patches from Manuel Pegourie-Gonnard)
907 * Added an extra sanity check for GDEF loading in luafontloader,
908 based on a crash caused by Linux' AkaashNormal.ttf.
911 ==============================================================
912 Luatex beta-0.52.0 was released 20100316
913 ==============================================================
917 * Various small manual improvements.
919 * A better version of getluatexsvnversion.sh, from Tomek.
921 * node.copy_list() now allows the second (optional) argument to
924 * An import of the current state of the texlive repository
925 (kpathsea and build system).
929 * An attempt fix for bug #345 (math kerning is not perfect): when the
930 current math font is a new math font, check against \catcode <cur_c>
931 == 11 to suppress the italic correction, instead of looking at
932 the value of space(<cur_f>).
934 * There is a new <tfmtable> key: 'units_per_em' (defaults to 0).
935 This is part of a fix for bug #200 (Problem with CFF fonts having
936 em-size other than 1000): there is a special correction to the
937 embedded cff font itself and the font scale if the font to be output
938 is opentype or type1 in unicode encoding and the 'units_per_em
940 <tfmtable>.units_per_em has to be passed back to luatex from
941 the lua font loading code for this to work.
943 * A fix for bug #314 (problem with pk file).
945 * lua code can no longer change the internal preallocated glue_spec
946 nodes (as that resulted in weird spacing bugs). For this, glue_specs
947 now have a new field: 'writable'. If that field is false, a copy
948 has to be made of the glue_spec instead of doing an assignment
951 * Setting of \textdir inside the output routine could trash output
952 on following pages due to a lingering internal variable.
954 * \pdfthread crashed because the arguments were handled in reverse
957 ==============================================================
958 Luatex beta-0.51.0 was released 20100312
959 ==============================================================
963 * Various small manual improvements.
964 * The backend message "cannot open Type 1 font file for reading"
965 now reports which Type1 font it was looking for.
966 * Fontforge clears some font names at loading time that will be
967 refilled in at font generation time, but the fontloader should not
968 do that. Patch from Khaled Hosny.
969 * New synctex code imported from TeXLive.
970 * luamd5/md5.h is renamed to luamd5/luamd5.h to avoid confusion.
971 * Embedded mplib is now 1.209.
972 * Some experimental tweaking of buildpage_filter, see the manual
974 * Luatex now detects kfreebsd (from Alan Braslau)
975 * The new lua function tex.sp() converts a string to a number
976 representing scaled points.
977 * There is now support for revision numbers in the banner and stats
979 * The command line help and manual documentation page is extended.
980 * node.hpack() now also accepts "cal_expand_ratio" and "subst_ex_font"
982 * node.hpack() and node.vpack() now give back the badness of the box
983 as second return value.
984 * node.copy_list() now allows a second (stop) argument, this stopper
986 * new lua functions in lfs: lfs.readlink() and lfs.shortname().
987 * new lua function tex.tprint() that can combine multiple catcode
988 regime prints in one function call.
989 * new lua sub-table: tex.nest[] (read/write access to the semantic
991 * New lua functions in kpse: kpse.lookup() and kpse.version(). See
992 the manual for more details.
993 * New lua function tex.shipout().
997 * There problems in the pdf output for Type3 (pk) fonts.
998 * Fix a bug that allowed bad commandline quoting.
999 * Fix a bug that sometimes caused crashes when \pdfprotrudechars.
1000 * The build script now exports CONFIG_SHELL to avoid problems with
1002 * The was a bug in the generated /Image /ProcSet.
1003 * status.font_bytes reported the wrong value.
1004 * Lots of compiler warnings are removed (thanks Javier Mugica).
1005 * Patch to fontloader.info() to accept filenames with embedded
1007 * Fix a \write error with docstrip package.
1008 * Fixed a crash on AdobeMyungjoStd-Medium.otf.
1009 * Fix coco stack overflows, needed for lpeg.
1010 * \pdfcompresslevel wasn't initialized for early immediate objects.
1011 * Fix for slanted fonts when HZ was on (slant angle was multiplied).
1012 * When concatenating content streams, put a space between them.
1013 * Allow pfb lines to end with \r as well as \n (for msam10.pfb).
1014 * Fix the internal string->scaled point conversion in the lua
1016 * Memory leaks in the fontloader removed, thanks to patches from
1018 * Fix a crash caused by the combination of coroutines and font.each().
1022 * Support for Type3 .pgc files (nobody used them).
1024 ==============================================================
1025 Luatex beta-0.50.0 was released 20091224
1026 ==============================================================
1030 * Fonts now listen also to the 'extend' key in the lua font
1031 metrics table, and the processing for this is done via de
1032 pdf text matrix instead of via the font matrix, which means
1033 it now works for all font types.
1035 * The embedded Metapost library is now at version 1.209.
1039 * It is no longer possible for fonts from embedded pdf files
1040 to be replaced by / merged with the document fonts of the
1041 enveloping pdf. This regression may be temporary, depending
1042 on how the rewritten font backend will look after beta 0.60.
1046 * Use of \middle confused the \mathstyle operation.
1048 * \pdfcolorstack handling was broken.
1050 * node.unset_attribute() had a bug whereby it inverted the
1051 requested result in some cases (the node on which the unset
1052 was called was sometimes the only node at the current level
1053 that *kept* the attribute).
1055 * During font expansion, the internal font copy had one character
1056 information object less than the original, resulting in the
1057 disappearance of a glyph in some fonts when font expansion
1060 * Placement of operator scripts of OT MATH fonts is adjusted
1061 to be conformant with Word's logic where the italic correction
1062 is only used to tuck in the subscript and for nothing else.
1064 * luafontloader.open() no longer writes directly to stderr in
1065 case of internal font errors.
1067 * Any <pdf_refobj_node>.objnum could not be assigned to.
1069 * The lua 'pdf' table could not be assigned to.
1071 * The lua 'md5' library was returning incorrect results on
1072 64-bit architectures.
1074 * Luatex now compiles on GNU Hurd systems.
1076 * Fix segfault when embedding stream file object (these
1077 backend segfaults were a side-effect of the string pool
1080 ==============================================================
1081 Luatex beta-0.47.0 was released 20091218
1082 ==============================================================
1086 * New read-write lua variables pdf.pdfcatalog, pdf.pdfnames,
1087 pdf.pdfinfo, pdf.pdftrailer
1089 * The horizontal mode nodes that are added to lines during line
1090 breaking now inherit the attributes from the first and last node
1091 inside the created line.
1093 * The new function pdf.registerannot(<number>) registers an
1094 annotation object number to be included in the current
1095 page's /Annots list.
1097 * The variables <metrics>.Mathconstants.FractionDelimiterSize
1098 and <metrics>.Mathconstants.FractionDelimiterDisplayStyleSize
1099 are added to the font table. This allows proper setting of the
1100 size parameters for TeX's ...withdelims math primitives.
1102 * The internal representation of the string pool is reorganized
1103 (the pool of string characters is now allocated dynamically),
1104 and as a side-effect the lua variable status.init_pool_ptr
1105 is deprecated and will be removed in a later version. Also,
1106 status.pool_ptr now simply returns the current number of bytes
1107 in use for string characters.
1109 * There are new lua variables pdf.pdfmapline and pdf.pdfmapfile
1110 (write-only strings that mimic \pdfmapline and \pdfmapfile).
1112 * \pdfobj data and attribute are now stored as C strings instead
1113 of as token lists (this should speed up cases with a lot of data).
1115 * Artificially slanted fonts now work via the pdf text matrix
1116 (instead of adjusting the actual font) so that it now also
1117 works for non-Type1 fonts. The lua <metrics>.slant font key is
1118 now obeyed in all cases.
1120 * The lua function font.id(<string>) returns the internal font id
1121 number belonging to a control sequence name.
1123 * Pdf image inclusion is optimized such that objects from an
1124 external pdf will now be included only once even if they are
1125 referenced from multiple inclusions.
1129 * Protrusion for non-TLT documents did not work properly for
1130 the hyphenation character.
1132 * \lastbox could not remove the paragraph indent box for non-TLT
1135 * Pdf images (\pdfximage) are no longer kept open during the
1136 whole run, but closed and reopened. An error is raised if
1137 the file has changed between \pdfximage and \pdfrefximage.
1138 This prevents the 'too many open files' error when lots of
1139 images are included.
1141 * On Win32 Pdf image files are locked during the time that it is
1142 open, to prevent unnoticed file changes by external sources.
1144 * Compilation now again works on FreeBSD.
1146 * Format sharing between 32-bit and 64-bit architectures was
1149 * Unsetting attributes from lua could sometimes result in
1150 the unset state persisting beyond the current group level.
1152 * If something went wrong in the scanning of pdf action items,
1153 the error message reported the current primitive name
1156 * Luatex would crash on non-existant pdfs that were referenced
1157 from map file entries.
1159 ==============================================================
1160 Luatex beta-0.46.0 was released 20091126
1161 ==============================================================
1165 * The build.sh script now has better support for new MacOSX-es
1168 * Luatex now has experimental support for dynamic loading of
1169 external compiled lua libraries. Building luatex and loading
1170 external .so/.dll files is reported to work on Windows,
1171 linux and osx, other platforms are still unknown.
1173 * pdf.obj{type="stream"} no longer converts its argument to and
1174 from a tokenlist. This allows the use of binary data in the
1175 "string" argument. Such data does still have to hidden from
1176 the normal file parser by putting the code in a dofile()
1177 or by using string.char(), though.
1181 * Luatex 0.45.0 was not able to find truetype nor opentype fonts
1182 if there were no callbacks defined (patch from Pawel).
1184 * 0.45.0 printed the user input instead of the full pathname
1185 for \input-ed tex files.
1187 * The TFM reader now rejects fonts with tfm names that are
1188 longer than 255 characters because such font names cannot
1189 be stored in a DVI file.
1191 * The combination of \immediate\pdfxform followed by a later
1192 \pdfrefxform could cause broken pdf output files because
1193 the box used for the form could have been freed and even
1194 reused already at that moment in time, sometimes resulting
1195 in an invalid transformation matrix.
1197 * The placement of super- and subscripts for displaystyle
1198 \int's in CambriaMath is now better than before. It still
1199 needs a tweak to the metrics though: in the current version,
1200 the italic correction has to be substracted from the width
1201 of the integral sign to get correct placement (context mkiv
1202 does this). to be continued ...
1204 ==============================================================
1205 Luatex beta-0.45.0 was released 20091118
1206 ==============================================================
1210 * Loading big OTF fonts via lua is now much faster than before,
1211 at the expense of a bit of precision loss in the calculated
1214 * Two new token lists are provided: \pdfxformresources and
1215 \pdfxformattr, as an alternative to \pdfxform keywords.
1217 * \input and \openin now accept braced filenames.
1219 * The \endlinechar can now be set to any value between 0 and 127.
1221 * Luatex can now optionally use kpathsea to find lua require()
1224 * The new primitives \aligntab and \alignmark are aliases for
1225 the use of & and # in alignments.
1227 * \pdfrefximage [width <dimen>] [height <dimen>] [depth <dimen>] <imageref>
1228 overrules settings from \pdfximage for this \pdfrefximage call only
1230 * The print precision for small numbers in lua code (tostring)
1233 * Akira Kakuto suppled a patch that restricts writing to files
1234 with names such as latex.bat etc. (on windows only)
1236 * (un-feature): from now on luatex now only handles 4 direction
1237 specifiers: TLT (latin), TRT (arabic), RTT (cjk), and LTL
1238 (mongolian). The other directions now generate an error.
1240 * (un-feature): xpdf's automatic lower- and uppercasing retry attempts
1241 for nonfound image pdf files has been removed.
1243 * The callbacks hpack_filter, vpack_filter and pre_output_filter
1244 pass on an extra string argument for the direction, when known
1245 (nil == use default).
1247 * The lua functions node.hpack(), node.vpack() and node.dimensions()
1248 now accept an optional direction argument (not given == use default).
1250 * \pdfrefxform [width <dimen>] [height <dimen>] [depth <dimen>] <formref>
1251 scales a form object; similar principle as with \pdfximage: depth alone
1252 doesn't scale, it shifts vertically.
1254 * A change to the relative ordering inside font name discovery for use
1255 by the backend: now it tries <f>.psname first, as that is much less
1256 likely to contain spaces.
1258 * For ttc fonts, now the used subfont name and its index id are printed
1259 to the terminal, and if the backend cannot find a ttc subfont, the
1264 * Prevent crashes for lua-loaded fonts without a (tfm) name.
1266 * Remove spurious newlines in the output pdf that could be the
1267 result of using \pdfximage for an included pdf figure too early.
1269 * Full font embedding for wide otf and ttf fonts now really
1270 works (older versions only pretended that it did work).
1272 * node.dimensions() sometimes continued past the 'stop' node.
1274 * Images inside virtual fonts were broken.
1276 * The processing of \language=-1 was wrong, resulting in
1277 hyphenation attempts even though there was no proper language
1280 * Fix for finding files in --output-directory.
1282 * Fix for handling of --file-line-error.
1284 * tex.box[] assingments are now checked to make sure the assigned
1285 node has the right id (hlist or vlist).
1287 * show_node_list (as in \showbox) produced spurious local_par
1288 whatsit prints in the output after direction nodes.
1290 * The handling of pdf literals has been sped up.
1292 ==============================================================
1293 Luatex beta-0.44.0 was released 20091027
1294 ==============================================================
1298 * libpng is now 1.2.40.
1300 * hlist nodes now have a subtype to distinguish hlists generated
1301 by the paragraph breaking, explicit \hbox commands, and other
1302 (as-yet-undefined) sources.
1304 * \pdfobj now has an extra optional keyword: 'uncompressed',
1305 which forces the object to be written to the PDF in plain
1306 text (see the manual for the exact details).
1308 * The lua file from the luamd5 library (which provides the
1309 md5.hexsuma() function) is now embedded in the executable.
1313 * \latelua now works in DVI mode again.
1315 * status.output_file_name could crash when used too soon.
1317 * In 0.43, rules were not output at all in DVI mode.
1319 * \leavevmode\penalty-10000\penalty-10000 crashed luatex.
1321 * the API of margin kern nodes to lua was using the wrong
1322 fields in the nodes.
1324 * A few fixes to the manual.
1326 * PDF Xref stream dicts were slightly non-conformant.
1328 * There was too much space between two consecutive math displays
1329 (this bug was inherited from Aleph)
1331 * Synctex was broken (thanks, Akira)
1333 * Font mark classes were handled incorrectly by the fontloader
1336 * There was a crash possible with certain types of named PDF
1339 * Math delimiters and large operators in new MATH fonts no
1340 longer apply the italic correction (this fixes placements
1341 of super- and subscripts on such items for those fonts).
1343 * The converter from lua strings to token lists (for the node
1344 interface) sometimes generated invalid tokens.
1346 * CFF (OpenType) fonts now listen to 'embedding="full"'. TTF
1349 * Font tables with 'embedding="no"' would cause luatex to crash.
1351 * \pdfobj file {} failed to find the file if there was no lua
1354 * An optimization in MS Mincho caused luatex to crash.
1356 ==============================================================
1357 Luatex beta-0.43.0 was released 20090819
1358 ==============================================================
1362 * There is a new allowed key in the table trhat is returned
1363 by lua-loaded fonts: <f>.psname. This value should be set
1364 to the original PostScript font name of the font. Fonts inside
1365 dfont and ttc collections are fetched using this field
1366 (if it is missing, <f>.fullname will be used instead).
1368 * It is now possible to use Apple dfont font files
1369 (those that contain at least one outline font).
1371 * \latelua is now allowed inside leaders.
1373 * There is a new callback: process_output_buffer, from Manuel
1374 Pégourié-Gonnard. This callback is called just before
1375 \write acts, so it can be used to alter the file encoding
1376 of text output files.
1378 * There is a new node.dimensions() function, which calculates
1379 the natural size of (part of) a list of nodes.
1381 * The new primitive \gleaders provides 'globally aligned'
1384 * The DVI and PDF backends now share much code internally.
1386 * The embedded MPlib is now 1.207.
1388 * libpng is now 1.2.39.
1392 * We fixed lots of anonymous bugs introduced in 0.42.0 (as expected)
1394 * fontloader.info() errors are no longer fatal, the function now
1395 just returns a nil,"error string" pair.
1397 * Automatically inserted kerns for \accents are now once again
1398 valid word ends, as in \TEX.
1400 * Fixed the placement of math displays in mixed direction
1403 * The \pdfcompresslevel is now dynamic again.
1405 ==============================================================
1406 Luatex beta-0.42.0 was released 20090717
1407 ==============================================================
1409 * There is a new node.tail() function
1411 * lua-loaded fonts now support a 'nomath' key to speed up
1412 loading the lua table.
1414 * A bugfix in the ttf reader for the inclusion backend, and
1415 (also in the backend) support for treating ttc files by
1416 pretending they are single ttf fonts (both patches from pdftex)
1418 * Add Khaled Hosny's man page to the repository
1420 * The \pdfcompresslevel is now effectively fixed as soon as
1421 output to the pdf file has occurred.
1423 * Patched status.filename so that it (nearly) always returns a
1426 * fix '\the\delcode' and disable '\the\odelcode', '\the\Udelcode',
1427 and '\the\Udelcodenum'
1429 * Handle jfifs where either xres or yres is 0 and the other
1430 res is != 0 (from pdftex)
1432 * The single-argument version of lang.hyphenate() was broken.
1434 * Get rid of the \directlua/\latelua number warning.
1436 * The Lua coroutine patch (coco) is now disabled on linux
1437 powerpc architectures (because it caused crashes)
1439 * Removed obsolete pdftex primitives:
1440 \pdfoptionalwaysusepdfpagebox
1441 \pdfoptionpdfinclusionerrorlevel
1445 * The loading speed of large fonts (especially ttf) via the
1446 fontloader library, and the inclusion speed for subsetting
1447 in the backend have both been improved.
1449 * The 'pdf' lua library has been enhanced with various new
1450 functions, see the manual for details.
1452 * BLT and BRT glyph position fixed.
1454 * Various fixes for synctex offsets.
1456 * Support for exotic font string encodings has been removed
1457 from the fontloader library.
1459 * The embedded MPlib is now 1.205.
1461 * libpng is now 1.2.38.
1463 ==============================================================
1464 Luatex beta-0.40.6 was released 20090625
1465 ==============================================================
1467 * Fix two string vs. toks bugs in the lua node interface:
1468 whatsit,annot and whatsit,startlink data assignments were
1469 made directly as strings instead of being converted to tokens.
1471 * Sometimes pdf.print() could be used before the proper structures
1474 * There was a bug in the type codes for the lua package filter
1475 callback: wrong extra info was passed to lua for the alignment
1478 * The math parameters \Umathlimitdownvgap, \Umathlimitdownbgap,
1479 and \Umathlimitdownkern have been renamed to \Umathlimitbelowbgap,
1480 \Umathlimitbelowvgap, and \Umathlimitbelowkern to be more
1481 consistent with the other parameter names.
1483 * The embedded MPlib is now 1.204.
1485 * Handling of UTF-8 hyphenation exceptions has been fixed.
1487 * There were a number of typos in the manual.
1489 ==============================================================
1490 Luatex beta-0.40.5 was released 20090610
1491 ==============================================================
1493 * One of the internal print functions accidentally encoded its
1494 argument string to UTF-8 even though it was already UTF-8.
1496 * Some of the log and terminal UTF-8 output was gibberish.
1498 ==============================================================
1499 Luatex beta-0.40.4 was released 20090609
1500 ==============================================================
1502 * \the\textfont0 returned a number instead of doing a font
1505 * The embedded MPlib is now 1.203.
1507 ==============================================================
1508 Luatex beta-0.40.3 was released 20090608
1509 ==============================================================
1511 * A set of portability fixes for the AIX compiler from Vladimir
1514 * A set of fixes to the synctex support.
1516 * A patch to the build script to prevent installed X11 headers
1517 from being required.
1519 * Some weave (web syntax) fixes from Manuel Pégourié-Gonnard.
1521 * A simplification in luatex.ch (it is now less verbose
1522 about the web2c-specific extensions) from Karl Berry.
1524 * A fix in the handling of UTF-8 (input) file names.
1526 * Hyphenation exceptions were case sensitive in 0.40.2.
1528 * libpng is now 1.2.37.
1530 ==============================================================
1531 Luatex beta-0.40.2 was released 20090603
1532 ==============================================================
1534 * Fix for a compilation warning under Cygwin.
1536 * A complicated bugfix by Hartmut for a rounding problem in the
1537 VF loading that resulted in 'character width mismatch in font
1538 XY.vf ignored' messages at large load sizes
1540 * The embedded MPlib is now 1.202.
1542 * The post_page_number callback was accidentally run when
1543 shipping out xforms as well as during actual pages.
1545 * When a math accent char doesn't have a bot_accent placer,
1546 luatex now uses the top_accent placer, if present.
1548 * A crash caused by \Uroot .. {<list>}{...} is fixed
1550 * A portability fix for solaris 8 sparc using sun studio
1551 compiler, and one for glibc > 2.9.90
1553 * luatex -ini now sets the \catcode of the BOM character to
1556 * Kpathsea is updated from TeXLive, giving four extra types of
1557 searchable files: 'font feature files','cid maps','mlbib',
1560 * libpng is now 1.2.36
1562 ==============================================================
1563 Luatex beta-0.40.1 was released 20090508
1564 ==============================================================
1566 * Vertical placement of root radicals and degrees is fixed.
1568 * The use of \pageleftoffset could deviate from \hoffset
1571 * LuaTeX now issues a warning if \pagedir !- \bodydir during
1574 * The previous crash in font.read_tfm() was still not quite
1577 * The Web2C version is now also printed in the --version
1578 and --credits output.
1581 * There is a new MPlib 1.200 release candidate with a few minor
1584 * The xpdf library is updated to patch level 3.
1586 * New imports to the build system, from texlive. In particular,
1587 there is now configure-level support for building with
1588 libpoppler and support for building under cygwin 1.7 is added.
1590 ==============================================================
1591 Luatex beta-0.40.0 was released 20090422
1592 ==============================================================
1594 * The embedded MPlib is updated to version 1.200.
1596 * Texlua would crash if run font.read_tfm() was used.
1598 * Luatex would crash on empty \patterns.
1600 * Lots of small C code cleanups.
1602 * \textdir inside a \hbox dir *** was wrong earlier.
1604 * 0.39.0 introduced a bug that would make luatex crash whenever
1605 font expansion was used.
1607 * Font tables returned by define_font can now have a key named
1608 'cache' that controls the internal lua font table caching.
1610 * There is no longer a need for an explicit --progname if there
1611 is no input file given.
1613 ==============================================================
1614 Luatex beta-0.39.0 was released 20090415
1615 ==============================================================
1617 * iniluatex will from now on start up with only the TeX82 primitives
1618 and \directlua, everything else has to be bootstrapped via
1619 tex.enableprimitives(). This change was planned for 0.40.0,
1620 but *now* is the time to test it.
1622 * A bugfix for \primitive in various expandable contexts,
1623 and \primitive now generates an error message when the
1624 argument is not actually a primitive's name.
1626 * There was a bug found in the math accent handling.
1628 * Large math operators are now treated like extensible characters
1629 in the sense that they can be composed of segments.
1631 * The extra assign- and restore tracing information from eTeX
1632 had a massive bug because of a dangling else in the pascal web.
1633 As a side-effect of fixing this bugs, all such potential errors
1634 in the pascal web have been fixed (for now).
1636 * The math parameters can now be set and queried from lua code
1637 via the new tex.setmath() and tex.getmath() functions.
1639 * Reflection in a \hbox was broken.
1641 * There was a leak of direction nodes in the paragraph builder.
1643 * The font backend now does a small peek to differentiate
1644 truetype and postscript style opentype fonts. This fixes
1645 the "Can't find CFF table" bug for otf's with truetype outlines.
1647 * Parameters and registers can now also be assinged to globally
1648 from lua (see the manual for details).
1650 * It is now possible to query the current math style while a
1651 formula is still being constructed by using the new read-only
1652 value \mathstyle. Associated is the new command \Ustack that
1653 is to be used as a prefix for {.. \over ..} and friends.
1654 See the manual for more information.
1656 * The embedded MPLib is brought up to date with the current
1657 metapost repository (version 1.110 and a few small patches).
1659 * Luatex can now handle two breakpoints inside a single ligature
1660 (like for the functional word of-f-ice). The solution is not
1661 perfect yet, but the chance of missed hyphenation points in
1662 actual documents should now be negligible.
1664 * Some speedups in the font loading code, and in the handling of
1665 pdf_literal nodes that are set from within Lua code.
1667 * Some source code and manual cleanup, as usual.
1669 ==============================================================
1670 Luatex beta-0.38.0 was released 20090410
1671 ==============================================================
1673 * tex.enableprimitives() had a bug were previously defined (but
1674 currently undefined) control sequences prevented the creation
1677 * The special calling format callback.register('name', false)
1678 not only disables the callback, but also the builtin code it
1679 is supposed to replace.
1681 * Empty \localleftbox and \localrightbox -es are now suppressed.
1683 * Support for <f>.MathConstants.SubscriptShiftDownWithSuperscript
1684 was added, to solve the lack of "sub2" in OpenType math.
1686 * Luatex now supports horizontal super- and subscript placement
1687 corrections via the OpenType MATH mathkern table. See the
1690 * node.write() no longer copies its argument node list before
1693 * There are six new primitives that are verbose forms
1694 of one and two byte special tokens:
1695 \Usuperscript \Usubscript
1696 \Ustartmath \Ustopmath
1697 \Ustartdisplaymath \Ustopdisplaymath
1699 * The attribute node leaks in math mode and alignmetns have been
1702 * The 11 simple math noads are now combined into a single "noad"
1705 * Static linking against libstdc++ is working once again.
1707 * There is a small fix in the keyword scanner to solve the
1708 problem of 'Runaway ... while scanning ???' that could happen
1709 for some primitives.
1711 * Lua now also has the "architecture independent bytecode"
1714 * Lua is updated to version 5.1.4 with coco patches 1.1.5, and
1717 * Some TRT/TLT backend bugs are fixed.
1719 * Various manual updates.
1721 ==============================================================
1722 Luatex beta-0.37.0 was released 20090331
1723 ==============================================================
1725 * Luatex now implements shell_escape = 'p', a new feature
1726 in web2c that intends to make \write18 more secure. As
1727 a side-effect, if luatex is used for typesetting, it will
1728 now also apply shell_escape = 'p' and shell_escape = 'f'
1729 to the lua functions io.popen(), os.execute(), os.exec(),
1731 Nothing has changed for the case where luatex is used as
1732 a script interpreter.
1734 * Attributes can now have negative values. The special value
1735 for 'unset' is lowered to -0x7FFFFFFF (it used to be -1).
1737 * The lua 'kpse' library now has an object-oriented interface
1738 as companion to the procedural interface. This is useful for
1739 e.g. controlling the discovery of mplib files.
1741 * The new internal integer parameter \outputbox allows setting
1742 of the output box number (default: 255, max: 65535)
1744 * The new primitives \Udelimiterunder and \Udelimiterover
1745 complete the set of 'StretchStacks' for OpenType Math.
1747 * Fixed a bug in font string conversions on the Macintosh that
1748 resulted in warnings about 'unaligned pointers being freed'.
1750 * Khaled Hosny spotted a bunch of manual errors.
1752 * There was bug in the width of math_accent objects when
1753 there were super- or subscripts attached to the accentee.
1755 * In PDF mode, TRT \leaders were bugged.
1757 * The source tree now uses the new texlive build system that
1758 Peter Breitenlohner created.
1760 * There is now a single build.sh instead of four separate
1761 ones. It has a few options:
1762 --make : only make, no make distclean; configure
1763 --parallel : make -j 2 -l 3.0
1764 --nostrip : do not strip binary
1765 --mingw : crosscompile for mingw32 from i386-linux
1766 --ppc : crosscompile for ppc osx on intel osx
1768 Note: --parallel still sometimes causes crashes due to
1769 timing errors, so use that option with care.
1771 * Many compiler warnings have been removed (but not all yet).
1773 ==============================================================
1774 Luatex beta-0.36.0 was released 20090323
1775 ==============================================================
1777 * The included fontforge code is stripped considerably, and
1778 the lua table to access the code is renamed to 'fontloader'.
1779 The old name ('fontforge') will remain present for a while,
1780 but will eventually go away.
1782 * New lua functions: tex.primitives(), tex.extraprimitives,
1783 tex.enableprimitives(). This is a prelude to a big change
1784 in the next beta: iniluatex will from now on start up with
1785 only the TeX82 primitives and \directlua, everything else
1786 has to be bootstrapped via tex.enableprimitives().
1787 See the manual for more details.
1789 * Support for multiple lua states has been removed, and at the
1790 same time support for adding name ids to lua chunks has been
1791 added. See the manual for more details.
1793 * More changes to the PDF backend to make it support non-latin
1794 directions (form and image placement, vertical typesetting,
1797 * The kpathsea library is updated. Highlights: cleaner build
1798 process (thanks to Peter Breitenlohner), cleaner mingw32
1799 (cross)compilation support, and a new reentrant API.
1801 * Some possible endless loops within extended delimiters in
1802 math mode are now trapped.
1804 * Movements inside VF font characters were considerably off
1805 due to a wrong conversion routine.
1807 * Error handling for \outer has been reinstated, but can be
1808 suppressed via the new primitive \suppressoutererror.
1810 * The new primitives: \suppresslongerror and \suppressifcsnameerror
1811 that can be used to suppress errors for \par in non-long macros
1812 and for non-expandable objects inside \ifcsname ... \endcsname,
1815 * New lua function: node.vpack() via a patch from Khaled Hosny
1816 that also improves error handling in node.hpack().
1818 * Fix the typo that caused \charic (instead of \charit)
1819 to be defined as a primitive.
1821 * Suppression of hyphenation via \hyphenchar\font=-1 now works
1824 * The lua functions tex.print(), tex.sprint(), tex.write() now
1825 accept an array of strings as well as vararg list of strings
1828 * A change to be build process: luatex.p is no longer split
1829 int smaller pieces before running the C compiler.
1831 * Melissa O'Neill contributed a bugfix to the Type1 font
1834 * A bunch of smaller bugfixes and cleanups (as usual).
1836 ==============================================================
1837 Luatex beta-0.35.0 was released 20090224
1838 ==============================================================
1840 * The math handling portions of LuaTeX are converted to C code,
1841 and extended to support Unicode math. There are a great many
1842 related changes, see the new Math chapter in the manual for
1845 * A nasty bug in the paragraph breaking routine was fixed.
1846 (All lines except the first one were believed to be wider then
1847 they really were. This affected which nodes were considered
1848 as active breakpoints)
1850 * Various changes to the PDF backend to make it support non-latin
1853 * Fixed the behaviour of the page offsets. Placement of the output
1854 on the physical page should now work correctly in all directions,
1855 both in DVI and PDF.
1856 There now are \pageleftoffset and \pagetopoffset primitives,
1859 * fontforge.apply_featurefile() was broken since 0.31.0
1861 * The lua profiler library is added.
1863 * The included lua filesystem library is now 1.4.1.
1865 * Reading of pk files fixed.
1867 * An optional space afer a <direction specifier> for \textdir c.s.
1868 is ignored from now on.
1870 * \bodydir and \pagedir can now be (re)set even after the first
1871 page has been output.
1873 * The new callback mlist_to_hlist can be used to intercept the
1874 normal conversion of math lists to horizontal lists.
1876 * The programs ttf2afm and pdftosrc are removed from the luatex
1877 distribution (these belong to pdftex).
1879 * fontforge.open() now uses much less memory when opening large
1882 * The included libpng is now 1.2.35.
1884 * Quite a lot of smaller bugfixes and cleanups (as usual).
1887 ==============================================================
1888 Luatex beta-0.31.3 was released 20081229
1889 ==============================================================
1891 This release has a bunch of updates from the development trunk
1892 (#1657-1670,1677,1678,1680,1685,1687).
1894 * Closing of files opened by \externalocp.
1896 * Fix for a locale-related bug that make PDF generation fail
1897 with a "Parsing CFF Dict failed" message when including
1900 * The included metapost is now version 1.102.
1902 * PDF rules in vertical modes in RL direction where output
1903 in the wrong direction
1905 * Fix for a crash on Apple fonts that contain a 'bsln' table.
1907 * The handling of the second argument to fontforge.open() was
1910 * The included libpng is now 1.2.34
1912 * Handling of ttc files on Windows was broken
1915 ==============================================================
1916 Luatex beta-0.31.2 was released 20081209
1917 ==============================================================
1919 Besides fixing building issues, this release has
1921 * A small fix for a crash that could happen when using
1924 * A fix in the format of fontforge.to_table output.
1925 (In 0.31.1 <font>.lookups was near-empty; the lookups
1926 were accidentally output as part of the gpos table).
1928 ==============================================================
1929 Luatex beta-0.31.1 was released 20081209
1930 ==============================================================
1932 fixed a bunch of compilation errors on various platforms, but
1933 with no other visible changes.
1936 ==============================================================
1937 Luatex beta-0.31.0 was released 20081205
1938 ==============================================================
1940 This is just an intermediate release so that some testing can be
1941 done on the updated fontforge embedding.
1943 * There are new fields being generated by fontforge.to_table(),
1944 and one or two old ones have been removed. These fields are /
1945 will be documented in the manual, but very briefly:
1947 - MATH table and associated information are now exported
1948 (the main reason for the new fontforge code)
1949 - Baseline data is now exported
1950 (perhaps usable in lua code)
1951 - Multiple Master / Glyph variation data is now exported
1952 (but useless, for now)
1953 - Mac Feature (AAT) information is now exported
1954 (perhaps usable in lua code)
1955 - If (lookup) names were saved via the PfED table, these
1956 will the exported instead of the default, generated names.
1957 (as requested by Yannis)
1959 * dfont is now treated as an archive format just like ttc
1960 when it comes to fontforge.info(). NOTE: that does not mean you
1961 can actually use them, because the backend doesn't know
1962 yet how to embed dfont fonts in the PDF, that is on the
1963 TODO list for the next big beta (0.40.0).
1965 * The executables are a lot larger than before. That is because
1966 much more of fontforge is included than before. Likely this
1967 will stay this way, because this makes upgrading the ff code
1968 much easier, and it means that luatex/FF potentially
1969 understands more font formats (after upgrading the backend,
1973 ==============================================================
1974 Luatex beta-0.30.3 was released 20081128
1975 ==============================================================
1977 This release fixes a really big bug, a few smaller ones,
1978 and has updates of png and mplib:
1980 * All hyphenation patterns that were anchored at the start or
1981 end of a word were ignored in luatex versions 0.25.X and 0.30.X
1982 (and possibly even earlier).
1984 * Repeated use of \language=-1 could result in "There is not room
1985 for another language".
1987 * The lua true coroutines patch (Coco) is now disabled on OpenBSD
1988 running on non-intel platforms.
1990 * The lua socket library is patched so that it will now compile on
1993 * Luatex now has libpng 1.2.33 and mplib 1.100
1995 ==============================================================
1996 Luatex beta-0.30.2 was released 20081020
1997 ==============================================================
1999 * The Lua coco change from 0.30.1 is reverted as it gave
2000 trouble on MacOSX. Lua coco on non-intel OpenBSD platforms
2001 is now explicitly turned off.
2003 * The lua file reading speedup in 0.30.1 broke reading of
2004 files larger than 100MB.
2006 * Reading of font-related files was broken when there was a find
2007 callback, but no read callback.
2009 * The texmf.cnf array size setup values were ignored whenever
2010 --lua was given on the commandline (instead of only when
2011 texconfig.kpse_init is set to false).
2013 * glyphs with negative widths resulted in incorrect horizontal
2014 placement (overlapping) of the string in the output PDF.
2016 * Using \latelua could sometimes result in an invalid output PDF,
2017 and the argument token list was expanded too early
2019 * There was a read buffer overrun in the mapfile parser
2021 * There are two new variables in the status table:
2022 status.callbacks and status.indirect_callbacks (execution counts).
2024 ==============================================================
2025 Luatex beta-0.30.1 was released 20081009
2026 ==============================================================
2028 * Invalid return values from the linebreak_filter callback
2029 are now handled gracefully (was crashing)
2030 * a preinstalled ctangle is no longer needed except when
2032 * In 0.30.0, the .notdef fix was incorrectly applied to
2033 truetype / opentype fonts.
2034 * A bunch of all memory leaks is fixed
2035 * In lua, f:read('*a') now uses signicantly less memory
2036 * The number of \catcodetables is now limited to 64KB
2038 * Luatex could crash if there were PDF images with and
2039 without page /Group included on the same page
2040 * Lua coco now always uses setjmp (for OpenBSD compatibility)
2041 * The embedded mplib is updated to the latest svn version
2042 * # marks (characters with catcode 6) are no longer doubled
2044 * Handling the nul character (U+0000) with catcode 13
2046 * Luatex could crash on win32 with an access violation
2047 because there was one predefined language too few
2048 (the one matching \language=-1)
2050 ==============================================================
2051 Luatex beta-0.30.0 was released 20080930
2052 ==============================================================
2056 * Readable \tex internal params that are counts, attrs, or dimens are
2057 now returned as numbers instead of strings, and skips as node objects.
2058 Read-write access to tex's skip registers added: tex.skip[0] etc.
2059 * new callback: 'linebreak_callback' to replace the internal paragraph
2061 * the tex table now supports more readable 'convert' values:
2062 tex.fontname, tex.pdffontname, tex.pdffontobjnum, tex.pdffontsize,
2063 tex.uniformdeviate, tex.number, tex.romannumeral, tex.pdfpageref,
2064 tex.pdfxformname (each takes a number as argument)
2065 * new readable parameter: tex.fontidentifier(number) returns the
2066 \csname associated with that font id
2067 * luatex now outputs \FONT<nr> instead of \^^@ in Overfull/Underfull
2068 messages if the font's id text is zero (like for expanded fonts) (#77)
2069 * luatex --version is split into --version and --credits
2070 * There is now (again) an svn revision number in luatex --version (#91)
2071 * Add support for more read-only internal access from lua:
2072 tex.lastpenalty, tex.lastkern, tex.lastskip, tex.lastnodetype,
2073 tex.inputlineno, tex.badness, tex.pdftexversion, tex.pdflastobj,
2074 tex.pdflastxform, tex.pdflastximage, tex.pdflastximagepages,
2075 tex.pdflastannot, tex.pdflastxpos, tex.pdflastypos, tex.pdfrandomseed,
2076 tex.pdflastlink, tex.luatexversion, tex.Alephversion,
2077 tex.Omegaversion, tex.Alephminorversion, tex.Omegaminorversion,
2078 tex.eTeXminorversion, tex.eTeXversion, tex.currentgrouplevel,
2079 tex.currentgrouptype, tex.currentiflevel, tex.currentiftype,
2080 tex.currentifbranch, tex.pdflastximagecolordepth (#81)
2081 * the old --src-specials are replaced by --synctex (#63)
2082 * the \expanded primitive is backported from pdftex 1.50 (#43)
2083 * luatex now comes with libpng 1.2.32
2084 * experimental: tex.definefont(string, number) associates a
2085 csname string with a font id number
2087 Bugs fixed compared to 0.29.0:
2089 * dashes were exported wrongly by MPlib
2090 * multi-item \discretionaries were broken in various ways (#78, mailinglist)
2091 * read_font_info was sometimes called recursively from lua-loaded
2093 * do_vf was sometimes called on lua-loaded fonts that where
2094 already known to be virtual
2095 * trailing junk in tfm files is now ignored (needed for ecrm fonts)
2096 * pdf_ignored_dimen was initialized too late, breaking \prevdepth
2097 handling and causing output lines to overlap eachother (#72)
2098 * pdf.immediateobj() had a printf-related bug
2099 * the fontname terminal logging is fixed for strange font file names
2100 * lua tex array assignments now listen to the globaldefs setting
2101 (tex.count[0] etc) (#92,partial)
2102 * \parshape was broken (#70)
2103 * there is no longer a ".tex" extension forced on very input file (#74)
2104 * eof() for mapfiles was true one byte too soon (#76)
2105 * out of range \lefthyphenmin and \righthyphenmin settings now actually
2106 disable hyphenation (#90)
2107 * tex.unset_attribute() looked too far ahead when a to-be-unset
2108 attribute id not only did not exist in the node, but was also
2109 higher than the highest set attribute on the node. (#65)
2110 * the parameters attr and page_name of read_image() were swapped
2111 (this broke \pdfimage with attributes)
2112 * tex filenames with spaces in them on the command line are now
2114 * sometimes pfb fonts were included multiple times without valid
2116 * some parts of the pdftex 1.40.9 PNG transparancy hack were still
2117 present and caused transparant png handling to fail
2118 * \localinterlinepenalty and \localbrokenpenalty were broken
2119 * special case catcode tables are now handled better (#23)
2120 * the handling of missing .notdef charstrings in old pfb fonts
2123 ==============================================================
2124 Luatex beta-0.29.0 was released 20080718
2125 ==============================================================
2130 * The embedded pdftex is now 1.40.9 (forthcoming) except for the
2132 - the png transparancy fix is skipped because it is in conflict
2133 with a macro-based solution offered by context mkiv.
2134 - LFS (PDF files > 2GiB) is not working yet.
2135 - Synctex is still missing
2137 * libpng, xpdf, and zlib are updated to their pdftex 1.0.9 levels
2139 * MPlib is updated to 1.090
2141 * The syntax of buildpage_filter is changed to avoid confusion
2142 (and crashes). See the manual for the new calling convention.
2144 Bugs fixed compared to 0.28.0:
2146 * The previous bugfix for \languages skipping numbers was wrong.
2148 * Various compile-time warnings are suppressed
2150 * \pdfsetmatrix was broken
2152 * \pdfsave and \pdfrestore were broken
2154 * Valid user_defined whatsits nevertheless were generating errors.
2157 ==============================================================
2158 Luatex beta-0.28.0 was released 20080630
2159 ==============================================================
2161 There is one new feature:
2163 There is now experimental support for non-trivial discretionaries
2164 following explicit hyphens. In analogy to \prehyphenchar and
2165 \posthyphenchar, there are two new parameters \preexhyphenchar en
2166 \postexhyphenchar. Both new parameters default to zero (nothing).
2167 When set to a nonzero value, the parameter is added to either the
2168 pre- or post- break text. Note that this is *in addition to* the
2169 hyphen already in the input. Testing and comments are very welcome.
2171 Here is a short example (no idea what is says):
2175 \postexhyphenchar=`-
2177 pudesse t\^e-lo mantido como amigo, mas por
2178 mais bem-intencionado que eu fosse, n\~ao
2184 Bugs fixed compared to 0.27.0:
2186 * Words that started off with a character with a zero \lccode
2187 were never hyphenated at all.
2189 * There was a bug in the new active characters code that prevented
2190 the latex format from being built (with Invalid character error).
2192 * There is a temporary fix for the sometimes appearing "Font has a
2193 bad FontBB" message from Acrobat.
2195 * \leaders did not actually stretch enough (the last bit of glue
2196 that has to line up the line endings was never output to the PDF).
2198 * Bad paragraph-related callbacks could result in luatex crashing.
2200 * The pre_linebreak and post_linebreak filters were never called
2201 when \output was active (this was a leftover of a superceded
2204 * 'skipping' language codes when setting up \patterns c.s. did not
2205 work (it used the next empty slot instead of the actual value of
2208 * Using multiple 'attr' keywords on box items could cause random
2211 * Calling lang.hyphenate() with one argument (without specifying a
2212 tail node) could crash.
2214 * The luatex pdf banner and version reporting is cleaned up a bit.
2216 * Conflicting patterns inside \patterns now give an error:
2217 ! Conflicting pattern ignored.
2218 (duplicate identical patterns are ignored without error).
2220 ==============================================================
2221 Luatex beta-0.27.0 was released 20080624
2222 ==============================================================
2224 Bugs fixed compared to 0.25.3:
2226 * Unicode reencoding support for non-standard (i.e. older)
2227 Type1 fonts is now somewhat less broken than it was (#25)
2229 * .vf fonts using specials crashed luatex
2231 * luatex would crash on --\par (#33)
2233 * An attempt is made to get a sane default value for StemV in
2234 the created pdf (#32)
2236 * We can now guarantee that %PDF-1.* header is printed before
2237 the first pdf.print() output
2239 * lang.hyphenate() was broken
2241 * insert_before(a,a,b) was broken (#37)
2243 * argv[0] is now cleaned up before being used as a default for
2244 mem_name and prog_name (#28).
2246 * luatex would crash on loading extended fonts (fonts loaded
2247 via lua callbacks) from a format file.
2249 * The fix for pdftex bug #799 is backported from pdftex 1.40.4.
2251 * slnunicode had a bug in the unicode.utf8.gmatch iterator.
2253 * Queries of nonexisting fontdimens could cause a crash.
2255 * luatex would crash on {\textdir TLT\pardir TLT x\break\par }
2257 * Fixed wrong placement of lines in mixed-direction paragraphs
2258 that could happen in some situations.
2261 * Luatex now includes luasocket (#35)
2262 See http://www.tecgraf.puc-rio.br/~diego/professional/luasocket/
2264 There is a new commandline option: --nosocket to disable this,
2265 and that is also implied by --safer.
2267 NOTE to the binary builders: there are some unfixed configure
2268 problems when you need to add a specific library to get socket
2269 support on your platform. You probably will have to edit the
2270 generated Makefile by hand (search for 'socketlib').
2272 * There is ongoing development to the 'img' and 'mplib' libraries.
2273 See the reference manual for details.
2275 * The 'character commands' in virtual fonts now support image
2276 inclusion. See the reference manual for details.
2278 * Lua error messages now include the call stack.
2280 * \directlua and \latelua have been extended to accept a 'name'
2281 keyword. The argument is a token list that is used as the lua
2282 name of this chunk in lua error messages and call stack prints.
2285 * The lua chunk names can be interfaced via a new virtual
2286 table called lua.instancename, the values in that function as
2287 defaults in the absence of 'name' keywords.
2289 * The 2-plane limit on active character range is removed (#12).
2291 * Subsetted TTF fonts in the PDF now retain the cmap table.
2293 * There is a new Lua variable os.selfdir. This contains the
2294 full absolute pathname of the directory that the executable
2295 resides in (with symlinks resolved)
2297 * There is a new function os.uname() this returns a lua
2298 table containing various platform information items.
2300 * The node library now uses text strings for direction specifiers
2301 instead of numbers. See the reference manual for details.
2303 * The 'E' (edit) as error response functionality is now a noop.
2305 * Adding luatex 0.25.3 to texlive resulted in a few minor backports,
2306 in particular: Support for mktexfmt is added, and luatangle now
2307 identifies itself as such (instead of calling itself otangle).
2309 * We fixed a whole series of portability problems (but
2310 we probably introduced new problems as well).
2312 * Most (all?) files now have a corrected Copyright header,
2313 and link in $Id$ and $URL$ into the object file.
2315 * Some unnecessary files were removed from the distribution.
2317 ==============================================================
2318 Luatex beta-0.25.3 was released 20080418
2319 ==============================================================
2322 * Pdftex bug no. 936 (sarovar) regarding vertical
2323 positioning of embedded PDF files if depth parameter is given.
2324 * Luatex gave bogus lua return values for the tex.wd/hd/dp
2325 values of void boxes
2326 * A few bugfixes in mplib (square pens caused hangs, elliptical
2327 pens caused confused output)
2328 * Hyphenation of uppercase words (\uchyph) was broken
2329 * Output image placements corrected for all 8 transform cases
2330 also when artbox etc. is used
2331 * There were missing maketexstring() calls in error messages
2332 * Math display contents were sometimes prematurely freed during
2333 the placement of the equation number
2334 * Setting \language=-1 could cause crashes due to an array
2335 index going out-of-bounds
2338 * build.sh.ppc is added to the source distribution. This is a
2339 script that crosscompiles osx ppc binaries from osx intel
2340 * tex.box[<chardef name>] is now supported (but still experimental)
2341 * a bunch of compiler warnings are removed
2342 * The fontforge library now dump AAT feature tags as and
2344 * The new function font.nextid() predicts the next assigned font id
2345 * Some source code changes are backported from texlive
2347 ==============================================================
2348 Luatex beta-0.25.2 was released 20080410
2349 ==============================================================
2351 * Updated to MPlib 0.40
2352 * Bugfixes and cleanup in the lua img table code
2353 * Fix \pdflastximagepages bug from pdftex
2354 * Fix for very large tex.print strings
2355 * Update to Lpeg 0.8.1
2356 * &D Bugfix for Type1 fonts when out-of-range characters
2357 are marked as 'used'
2359 ==============================================================
2360 Luatex beta-0.25.1 was released 20080321
2361 ==============================================================
2363 * Updated to MPlib 0.30 (that is now becoming usable)
2364 * The build requirement for a pre-installed ctangle is gone
2367 ==============================================================
2368 Luatex beta-0.25.0 was released 20080311
2369 ==============================================================
2374 This version features an embedded MP interpreter whose output
2375 can be directly accessed from lua code (mplib), without calls
2376 to an external "mpost" command. Of course it has bugs and
2377 limitations (makempx does not work, for example) but keep in
2378 mind that it is only an initial attempt.
2379 See the manual for more details.
2381 ** img.immediatewrite() is added
2382 ** images now accept a 'transform' key
2383 ** widths etc. can now be given as width="100mm"
2387 * \parshape handling was completely broken since 0.20.0+
2388 * when \pdfprotrudechars was in effect, an assertion failure
2389 could happen when embedded \hboxes in the paragraph appeared
2390 at the end of a line.
2391 * import of otf fonts with contextual lookups has been debugged,
2392 thanks to a patch by GW himself.
2393 * compiling with gcc 4.2.3 is now supported
2394 * if you want to build from source, you need a pre-installed ctangle.
2397 ==============================================================
2398 Luatex beta-0.22.1 was released 20080227
2399 ==============================================================
2401 * The macnames.c source file for building ttf2afm is restored.
2402 * "make depend" in luatexdir now works again
2403 * luatex sometimes crashed because it attempted to expand an
2404 already expanded font
2405 * luatex aborted when --progname was given but no format name.
2406 It now sets the format name to the given progname in that case
2407 * sometimes paragraphs with near-empty lines could cause a crash
2408 * img.supportedtypes() had a bug causing it to crash
2409 * img.supportedtypes() has been renamed to img.types for consistency
2410 * img.boxes() added, returns strings representing bounding boxes
2411 * img.node() added, returns a whatsit node cf. \pdfrefximage
2412 * node.write() now accepts multiple arguments
2413 * the program_name_set switch was not set automatically from C,
2414 causing errors unless lua code called kpse.set_program_name()
2416 * kpse.set_program_name() can now be called more than once
2418 * os.spawn{...} and os.exec{...} could cause crashes because of
2419 a memory allocation error
2421 ==============================================================
2422 Luatex beta-0.22.0 was released 20080215
2423 ==============================================================
2425 * We now have an official bug tracker: http://tracker.luatex.org
2426 * A new lua library (img) is added that allows a direct
2427 interface to the image handling of luatex. You can use this
2428 to include images from lua code instead of via the more
2429 traditional \pdfximage cs. See the manual.
2430 * An optional equal sign after \{pre,post}hyphenchar is now
2432 * os.exec() has been extended, and os.spawn() added. These
2433 functions have support for quoted strings, and they
2434 also accept a table with preseparated command arguments.
2435 * New string constants os.type and os.name are provided.
2436 * node.last_node() is added. This pops and returns the last
2437 node from luatex's 'current list'
2438 * node.write() is added. This appends a node to the end of
2439 luatex's 'current list' (experimental).
2440 * The strict check on unicode compliance in pattern files
2441 is dropped. Patterns files still have to be in proper UTF-8
2442 encoding, but the error for non-Unicode character values
2443 (like 0 - 31 and 127 - 159) is dropped.
2444 * \pdfadjustinterwordglue, \prependkern, \appendkern
2445 and associated \XXXXcode arrays are gone.
2446 * The rest of the pdftex font arrays are now merged into
2447 the new luatex font data structure. This means that you
2448 can now set up font expansion from lua code, and that a few
2449 font-related limits are gone.
2450 * The 'top_skip' field in 'insert' nodes is renamed to 'spec',
2451 for improved consistency.
2452 * kpse.show_path() added. This behaves just like
2453 $ kpsewhich --show-path
2454 * The unicode.utf8 functions now also accept values in the range
2455 1.114.112 - 1.114.367 that is used by LUATEX for raw byte output.
2459 * Better node memory (de)allocation error tracking and messages
2460 * Compilation on MacOSX 10.5 was broken
2461 * There was a bug in node.insert_after
2462 * Use of \{pre,post}hyphenchar was broken
2463 * lfs.permissions was leaking memory
2464 * Some warning and error messages are improved a bit
2465 * A set of bugs in character protrusion, this seems to be working
2467 * Also, a set of bugs in font expansion. This now works in most
2468 cases but is not quite bugfree yet (problematic files for testing
2470 * The functions in the kpse library would crash luatex if
2471 kpse.set_program_name() was not yet called. gives an error now.
2472 * Alignments with spanned columns could cause crashes
2473 * A patch is added for problems with filename parsing on the
2474 "first input line" (by Jonathan Kew)
2475 * The hpack_filter and vpack_filter were only called for lists longer
2477 * Luatex is now more forgiving about font subsets being smaller
2478 than their expected size (issues a warning instead of aborts now)
2479 * A "double-free ignored" error for paragraphs with lines starting
2480 with discarded items was fixed.
2482 ==============================================================
2483 Luatex beta-0.20.2 was released 20071217
2484 ==============================================================
2486 * some portability fixes to the build scripts
2487 * a fix for multi-\span in alignments causing unbreakable
2489 * manual improvements from Jonathan Sauer
2490 * fix for undefined csnames in \directlua if
2491 web2c's hash_extra is nonzero
2492 * fix for LR text inside of a RL document
2493 * fix for open_read_file callback not being called
2494 unless find_read_file was also registered
2495 * removed the ocp status message when \ocps are not
2497 * "unicodeenc" in the fontforge to_table renamed to
2498 "unicode" for improved consistency
2500 ==============================================================
2501 Luatex beta-0.20.1 was released 20071207
2502 ==============================================================
2504 * texlua was broken on Solaris because the some C header
2505 files were loaded in the wrong order.
2506 * os.tmpdir() now accepts an argument, making it easier
2507 to use. It now generates more unique filenames when
2508 it is called repeatedly in one run.
2509 * The --luaconly commandline switch is now documented
2511 * The new extended hyphenation exceptions were severely
2513 * \pdfprotrudechars could cause luatex to abort with an
2515 * There was a bug in the \span code that could cause endless
2517 * The simple forms of \leaders were messed up on windows
2518 because a variable was not properly initialized.
2519 * Non-grouped \textdir commands created invalid output.
2520 * e-TeX's pseudo files were not closed properly in ini mode.
2521 * The luatex.web now weaves properly again.
2522 * I made some small improvements to the manual.
2524 ==============================================================
2525 Luatex beta-0.20.0 was released 20071205
2526 ==============================================================
2528 News compared to the last beta (0.11.2) is as follows:
2530 * Completely overhauled hyphenation and ligkern application,
2531 including the addition of a new "lang" table in lua to
2532 interface to the language parameters, some extra functions
2533 in the "node" table, and a few extra callbacks ("hyphenate",
2534 "ligaturing", "kerning", "post_linebreak_filter").
2536 There is a new chapter in the manual to document all the
2537 changes to the hyphenation and line breaking algorithms,
2538 it is simply too much to list here.
2540 * the interface of the pre_linebreak_filter,hpack_filter,
2541 vpack_filter, and pre_output_filter has changed slightly.
2543 * boxes can now get explicit attributes different from the
2544 currently active set, using a syntax like
2546 \hbox attr2=12 attr3=-1 to 12pt {Hi!}
2548 * lpeg is now at version 0.7
2550 * a whole series of exotic bugs and compiler warnings are
2551 fixed, mostly thanks to the watchful eye of Fabrice.
2553 * texio.print now accepts multiple strings as arguments.
2555 * the lua functions os.sleep(), os.times(), os.gettimeofday()
2556 and os.tmpdir() have been added.
2558 * lua now comes with the coroutine (coco) patches from the
2559 luajit project applied.
2561 * the banner line no longer claims to be TeX.
2563 * a bunch of bugs reported on the mailing list have been
2564 fixed (I hope all of them).
2566 * (internal) we found lots of small ways to speed up lua
2569 * (internal) the node (de)allocation functions have been
2570 rewritten, so that absolutely all nodes now have a type,
2571 even the ones with variable sizes.
2574 ==============================================================
2575 Luatex snapshot-20071029 was released 20071029
2576 ==============================================================
2578 * Completely overhauled hyphenation and ligkern application.
2580 There is a new chapter in the manual to document all the
2581 changes to the hyphenation and line breaking algorithms,
2582 it is simply too much to list here.
2584 * the interface of the pre_linebreak_filter,hpack_filter,
2585 vpack_filter, and pre_output_filter has changed slightly.
2587 * lpeg is now at version 0.7
2589 * a whole series of exotic bugs and compiler warnings are
2590 fixed thanks to the watchful eye of Fabrice.
2592 * texio.print now accepts multiple strings as arguments.
2594 * The lua function os.sleep() is added
2596 ==============================================================
2597 Luatex beta-0.11.2 was released 20070918
2598 ==============================================================
2600 * Pdf inclusion and subsetting of CID-based opentype fonts
2601 now works as it should.
2603 ==============================================================
2604 Luatex beta-0.11.1 was released 20070918
2605 ==============================================================
2607 A quick list of what is new and fixed since beta 0.10.2:
2610 * pfb+afm fonts can now be used in 'wide' (encodingbytes=2) mode
2611 * searching in PDFS using 'wide' fonts now works reasonably well
2612 (based on the tounicode feature)
2613 * related to that, tounicode information can now be passed
2614 on inside the font metrics table
2615 * font subsetting is now supported for CID-based OpenType fonts
2616 (however, there is a known bug with KpozMinProVI-Regular.otf)
2617 * fontforge's warning and error messages are now intercepted
2618 and passed on to the lua code as a second return value of
2619 the fontforge.open() function
2620 * the new primitive \suppressfontnotfounderror can suppress
2621 the TeX error for "Font not found"
2622 * The lua function font.current can now be used to set TeX's
2626 * set_attribute(-1) is now the same as unset_attribute()
2627 * OpenType lookups with glyph classes would crash luatex
2628 * luazlib would not compile on debian (fix from Norbert)
2629 * CID-based fonts would crash luatex
2630 * Bare CFF should be read in binary mode (fix from Akira)
2631 * VF processing did not process packets containing zero bytes properly
2632 * the truetype collection (.ttc) handling is fixed, so that all
2633 of the fonts inside a collection can now be used reliably
2634 * application segfaults and stack overflows are intercepted
2635 so that luatex can quit a bit more gracefully
2636 * an assertion failuer on systems with signed chars (linux-powerpc)
2638 * a crash on AMD64 linux was fixed
2639 * the lua "pdf" table code was wrong
2640 * \ifcsname did not work properly for UTF-8 characters
2641 * Use of the math-related functions using make_fraction (like \atop)
2643 * \handling of \if\noexpand was wrong
2644 * applied a patch that cleans up XForm and page calculations
2645 * "autoconf" support from zziplib is stripped
2647 ==============================================================
2648 Luatex beta-0.10.2 was released 20070814
2649 ==============================================================
2653 * the primitive \span was completely broken
2654 * \pdfexpandfont (font expansion) misbehaved if it was used more
2656 * virtual fonts: sometimes they used the wrong internal font id,
2657 loading vf fonts via fonts.read_vf() was impossible, and sometimes
2658 virtual fonts created segfaults
2659 * while dumping formats, the last font parameter for each font was not
2661 * zziplib was always compiled with pre-installed zlib headers, instead
2662 of the ones in the build tree
2663 * lua 5.1.2 has trouble quoting ^Z characters etc, the tentative patch
2664 for lua 5.2 from Luiz fixes that, hopefully
2665 * fontforge.font('font.pfb') now properly parses AFM boundingboxes
2666 * non-existing files in the argument for fontforge.open() or
2667 fontforge.info() could cause segfaults, now it generates an error
2669 * fontforge.open() did not return character widths for vertical fonts
2671 * on Windows, fontforge believed that ttc files (TrueType Collections)
2672 were actually directories. ttc processing is still not 100% correct,
2673 but it is getting better
2674 * the build system used explicit 'make' sometimes
2675 * the auto-growing string pool was not used everywhere
2676 * there were some typos in the documentation parts of the pascal web
2677 * use of \parshape could easily exhaust all available memory
2682 * support for applying Adobe Feature files (.fea) and Adobe Font
2683 Metrics (.afm) is added to the fontforge library
2684 * fontforge.info() will now return an array of tables for the contents
2686 * support for a 'texluac' personality was added, to replace the 'luac'
2687 command from the official Lua distribution
2689 ==============================================================
2690 Luatex beta-0.10.1 was released 20070719
2691 ==============================================================
2693 This was a hotfix because beta-0.10.0 was completely broken.
2695 ==============================================================
2696 Luatex beta-0.10.0 was released 20070718
2697 ==============================================================
2699 The latest version of the manual is included in the package, and I
2700 am not going to repeat all of that. There were some minor changes
2701 compared to the previous snapshot, but mostly just bugfixes and
2702 documentation improvements.
2704 ==============================================================
2705 Luatex snapshot-20070626 was released 20070626
2706 ==============================================================
2708 * Integrated the lua library lzlib, this defines tables with
2709 bindings for zlib (including eazy-to-use gzip support)
2710 * Updated to slnunicode version 1.1
2711 * Some small cleanups in the sparse array handling
2712 * Moved the raw byte support out of the valid unicode range
2713 * Fixed a bug in the OFM font reader
2714 * Removed the pdftex snap nodes (and associated primitives)
2717 ==============================================================
2718 Luatex snapshot-20070622 was released 20070622
2719 ==============================================================
2721 Not a lot of news, but it fixes a few important bugs in the lua
2722 node processing. Also a few utility functions are added:
2725 rounds and bounds checks a lua number to make sure it is
2726 a valid tex integer.
2728 multiplies a number (or the numeric values in a table)
2729 with a fixed quantity, and calls tex.round() on the result.
2731 Test if a node has a specified field name
2733 removes a node from a nodelist, while keeping the list intact
2734 * node.insert_before()
2735 inserts a new node into a nodelist, just before a specified
2737 * node.insert_before()
2738 inserts a new node into a nodelist, just after a specified
2741 packages a nodelist into a hlist node
2744 ==============================================================
2745 Luatex snapshot-20070619 was released 20070619
2746 ==============================================================
2748 * The lua node processing interface is completely reworked.
2749 It is now completely based on userdata, and uses a new lua table
2750 called 'node' to hold the methods. More detailed information
2751 is in the manual (of course).
2753 * There is a fifth node processing callback:
2755 this is executed just before the packaging of \box 255.
2757 * The hpack_filter and pre_linebreak_filter callbacks now
2758 receive an extra argument indicating the number of top-level
2759 glyphs in the node list.
2761 * Virtual fonts can now contain a 'node' key in the glyph
2762 commands: the value should be a hlist node (i.e.: a horizontal
2763 box), and that will then be output for each character access
2766 * A new set of registers is added, called \attribute. These are
2767 values that will be automatically attached to nodes created in
2768 their scope. More information in the manual.
2770 * Direct read/write access to TeX's box registers is addded to
2771 the lua 'tex' table.
2773 * TeX's main memory now grows dynamically, and the (de)allocation
2774 routines have been rewritten completely.
2776 * The 'kpse' table is extended with extra interface functions, to
2777 allow texlua to be used as a scripting engine.
2779 * The \pdftexversion command now returns 200, not 140.
2781 * The displayed banner and --version screens are cleaned up.
2783 * The format file is now RLE compressed. Not as small as before,
2784 but unpacking is much faster.
2787 ==============================================================
2788 Luatex snapshot-20070426 was released 20070426
2789 ==============================================================
2791 This past month I have been busy with nodes and lists of nodes,
2792 so the big new feature in this release is that there are four
2793 callbacks that operate on node lists:
2796 pre_linebreak_filter
2800 The preliminary documentation for these is in the manual, but the basic
2801 idea is that you can filter a node list just before LuaTeX starts doing
2802 something with it (like line breaking). This functionality is not stable
2803 yet: the node presentation of the various node types is pretty much OK
2804 now, but keep in mind the following:
2806 * math noads and math typesetting are not handled at all (yet)
2807 * not all hpacks and vpacks are intercepted (yet)
2808 * the nested node list handling will probably change
2809 * A conversion tool for nodes to/from dictionaries is planned,
2812 The other changes in this snapshot are various bugfixes (for builds
2813 on various platforms as well as font issues) and speedups (in the
2814 execution of callbacks and the creation of lua font representations).
2817 ==============================================================
2818 Luatex snapshot-20070322 was released 20070322
2819 ==============================================================
2821 * I have changed the token_filter callback quite rigorously,
2822 mostly because of speed issues. The raw speed of trivial
2823 lua token handling is now only about 20 times slower than
2824 the native handling. Not bad at all, considering it has to move
2825 between interpreted and compiled code for each and every
2826 token. If you do not run the token filter inside \output,
2827 the effective run speed difference should not be much more
2830 Two big differences: you have to call token.get_next()
2831 yourself, and the token table is now a three-item array
2832 instead of a five-key hash. The minimal example changes to
2835 callback.register('token_filter', function ()
2836 return token.get_next()
2840 more details are in the manual.
2842 * I've fixed a few bugs in the handling of Opentype TTF, and added
2843 a new key in the font definition table:
2845 f.encodingbytes = (1|2)
2847 The default is 2 for opentype and truetype format, 1 otherwise.
2848 Later on, it will become possible to have a type1 font in 2-byte
2849 (CID) encoding or a truetype font in traditional encoding (1-byte),
2850 but I have not covered all cases yet.
2854 ==============================================================
2855 Luatex snapshot-20070309 was released 20070309
2856 ==============================================================
2858 * The OCP debug information is removed again.
2860 * There is a new callback that I am quite excited about myself:
2864 A bit of text from the reference manual:
2865 --------------------
2866 This callback allows you to change the modify any lexical token that
2867 enters the \type{main_control} function before \LUATEX\ executes the
2870 Note: not all tokens can be intercepted yet, only those that are `seen'
2871 by \LUATEX's main control function. Supplemental tokens like the bodies
2872 of macro definitions and the right-hand side of register assignments
2873 are not seen. For now, this is intentional.
2876 function (table <token>)
2877 return table <token>
2881 Calling convention for this callback is bit more complicated then for
2882 most other callbacks. Initially, lua function will be called with the
2883 next token from \type{get_next()} as argument, represented as a small
2884 lua table. The function should either return a lua table representing
2885 a valid to-be-processed token, or something else like nil or an empty
2888 If your lua function does not return a table representing a valid
2889 token, it will be immediately called again with yet another token
2890 from \type{get_next()} as argument, until it eventually does return
2893 But if the function does return a usable token, then that token will
2894 be processed by \LUATEX. Afterwards, the function will be called
2895 again, but now without an argument. This is repeated until it stops
2896 returning tokens. Then processing reverts back to the other branch.
2898 The point behind that roundabout calling convention is that it
2899 allows the lua function to buffer tokens for various uses. That in
2900 turn makes it possible to do some really advanced things like
2903 Now about that table. The table that the function will receive
2904 contains four fields:
2906 \starttabulate[|l|i|p|]
2907 \NC Key \NC type \NC Explanation \NC\FR
2908 \NC cmd \NC string \NC A representation of \LUATEX's internal
2910 \NC chr \NC number \NC The command code modifier\NC\NR
2911 \NC cs \NC string \NC If the token came from a csname, this
2912 is that csname\NC\NR
2913 \NC mod \NC character \NC A single character string representing
2914 the current processing mode. One of {\bf v}ertical, {\bf h}orizontal,
2915 display {\bf m}ath, {\bf n}o, internal {\bf V}ertical,
2916 restricted {\bf H}orizontal, or inline {\bf M}ath mode.\NC\LR
2919 If you modify the table before returning it, then it is wise to return
2920 either a (\type{cmd}, \type{chr}) pair, or a \type{cs} string. That is
2921 because if both options are present, the pair has precedence and the
2922 string is ignored. On the return table, {\bf mod} is ignored always.
2925 I have no long example code yet and it is not as complete as one
2926 would want it to be because it is not intercepting everything that
2927 comes in, only the bits that are triggered by the main control
2930 I decided to do a fast snapshot release for two reasons:
2932 * It is one of the easier extensions to get started with if you want
2933 to learn a bit about lua programming
2935 * I would welcome feedback on the token interface, because it will
2936 be needed in other places as well, soon. I am still not sure
2937 whether converting the command to/from strings is worth it, for
2938 example. And maybe it would be less confusing if you could return
2939 a list of tokens instead of being called repeatedly?
2941 Here is the trivial example to get you started:
2944 callback.register('token_filter', function (t) return t end)
2948 ==============================================================
2949 Luatex snapshot-20070307 was released 20070307
2950 ==============================================================
2953 * Non-CID PostScript-based Opentype fonts are now combined over
2954 the entire document, and properly subsetted. The code is
2955 borrowed from xdvipdfmx with some minor adjustments
2957 Adding support for CID-keyed OpenType fonts would not be hard
2958 but at the moment I lack example input (and incentive).
2960 * A small extension to the virtual fonts structure: you can use
2962 f.fonts[1] = { 'id' = 38}
2964 to do a backreference to a previously defined font. This saves quite
2967 * There was a bug in the handling of \leaders in the output whereby
2968 it's width was taken to be twice what it should be while writing
2969 to the PDF, fixed now.
2971 * The font inclusion code is cleaned up a bit by Hartmut.
2973 * Some compilation problems were fixed.
2975 * There is (quite a bit of) debugging information printed out when
2976 OTPs are in use, because I am tracking down a bug reported by Idris.
2978 The input of each and every OTP step is shown on the terminal in
2981 [57902][1568][58423][1568][58408][1568][58921]
2983 those are the decimal values of ocp i/o characters. If you don't
2984 need them, don't worry about it.
2986 ==============================================================
2987 Luatex snapshot-20070302 was released 20070302
2988 ==============================================================
2990 * The 'snapshot version' banner is now calculated dynamically
2991 at build time. This aids in figuring out what binary people
2992 are actually running, but it can possibly break the build on
2993 systems that do not have a `date` command.
2995 * The do_vf() function that checks for virtual font existance
2996 is now run immediately after the font definition instead of
2997 being postponed until characters are output.
2999 * The 'define_font' callback interface has changed a little.
3001 retval = function (name,size,fontid)
3003 where fontid is the internal font number of the font that
3004 is currently being defined, and retval can be either a table
3005 (as before) or a different, previously defined fontid. This is
3006 useful if a previous definition can be reused instead of
3007 creating a whole new font structure.
3009 * The internal font data structure has been redone. Glyph index
3010 inside a font is now handled by a sparse array, so that use
3011 of e.g. 0xFB01 (fi-ligature) no longer creates a 64000+ entries
3014 * The internal cache-ing of font metric information is turned
3015 off completely, because it was based on the assumption that
3016 name + size were a unique identifier for a font. This can no
3017 longer be guaranteed.
3019 * word boundary processing now works OK again, thanks to the
3020 introduction of two virtual characters in the font table
3021 definition. Besides the normal numeric entries in the
3022 f.characters table, there can now also be two string keys:
3023 "left_boundary" and "right_boundary". The ligatures and kerns
3024 of the 'left_boundary' character are used for the pre-word
3025 boundary processing, ligatures and kerns between characters
3026 and 'right_boundary' are used for the post-word processing.
3028 * Lua font table references are no longer cached by the
3029 executable ,in order to preserve memory. (the only downside
3030 is that font.fonts[] access is now slower because of the need
3031 to recreate the lua table).
3033 * There are other some small changes to the font table formats.
3034 Please see the manual for details.
3036 * A 'real' font can now still have virtual characters if they
3037 are loaded via lua. Just set the 'commands' section and/or
3038 the 'fonts' array to your liking, and it should work out.
3040 If you have created no 'fonts' array at all, then the default
3041 font (indentifier '1') is the current font, so that you
3042 can create virtual duplicates of already existing characters.
3044 Note: this does not work the other way. There can not be
3045 'real' characters in a virtual font!
3047 * Truetype-based opentype fonts no longer require Acrobat 7
3048 t(hey are now written out as if they are normal truetype).
3050 * A lua init script can now set 'texconfig.formatname' and/or
3051 'texconfig.jobname'. If ther is no file or format specified
3052 on the commandline, then, if, one of those keys is present,
3053 that key will be used instead of simply quitting with an
3056 * Placement of boxes and rules in right-to-left mode is debugged,
3057 and now seems to work ok.
3059 * Virtual font loading is debugged.
3061 * Some memory leaks are resolved
3063 * HZ font expansion should work ok again, but is not tested.
3065 * a few of the warning during opentype loading have been removed
3066 because the problems are rather harmless and turned out to be
3067 triggered by almost every font.
3070 ==============================================================
3071 Luatex snapshot-20070218 was released 20070218
3072 ==============================================================
3074 * The pdftex stuff is now updated to 1.40.3
3075 (and on top of that, it still has those extra patches announced in
3078 * The virtual font parser is debugged and now appears rather stable.
3080 * There is one extra virtual command:
3083 {"slot", 1, 97}, -- place character 97 'a' in local font 1.
3086 This is just a shortcut for {"font",1}, {"char", 97}
3088 * Some small memory leaks have been fixed. Luatex does not leak big
3089 time, but I'd like to get back to valgrind reporting '0 out of 0',
3090 instead of the current 800 bytes or so (that is a slow process).
3092 * You can read a truetype or opentype font from within lua code
3093 using font.read_ttf() or font.read_otf(), respectively.
3095 This feature uses a fair bit of the fontforge code, making the
3096 binary rather a bit larger than before. Just so you know.
3098 Apple (AAT, as well as encoding) support is still largely missing,
3099 and bitmap-only and old Multiple-Master truetype fonts are not
3100 supported at all (and never will be).
3102 The output format is (shadily) documented in the reference manual.
3103 At the moment, it very closely resembles the internal font stucture
3104 that is used by fontforge.
3106 * LuaTeX can now write wide OpenType fonts to the PDF file.
3108 There is no subsetting support yet, and a ToUnicode CMap is also
3109 still missing, but nevertheless it is already somewhat useful. The
3110 rule is very simple: if a font uses code points above 255, then it
3111 is considered to be a `wide' font, and it will be written out as
3112 a Type0 CID-keyed font to the PDF.
3114 Caveat: Getting suitable metrics into LuaTeX can be a bit of problem
3115 right now, because font.read_otf() does not produce anything that
3116 can be fed back into define_font without extra processing. Hans has
3117 some experimental Lua code for ConTeXt (of course :-)) and that is
3118 how I know it works. You can expect a nicer interface soon,
3119 hopefully next week, in the form of a simplistic table conversion
3122 * I have started work on supporting Aleph's bidi typesetting in PDF
3123 mode as well, simple text seems to be largely ok. More complicated
3124 documents will no doubt still show some bugs, but fixing those will
3125 be easy (once they are discovered). Exactly what happens with specials
3126 is not yet investigated.
3128 * Omega's (16-bit) wide virtual fonts now work OK in PDF mode. This
3129 means that many Aleph files can now be run in PDF mode directly.
3130 (the documents that use UTF-8 input encoding)
3133 ==============================================================
3134 Luatex snapshot-20070202 was released 20070202
3135 ==============================================================
3138 * The pdftex stuff is now updated to 1.40.2, and on top of that, it has
3140 - an extra patch from Han The Thanh that adds a primitive to control
3141 the merging of fonts from external pdf images (\pdfreplacefonts),
3142 and a bugfix for virtual font handling.
3144 - an extra patch by Hartmut Henkel that removes a number of malloc()s
3145 and free()s from the calls to the compression library, thereby
3146 making luatex run a bit faster.
3148 * luatex now happily accepts the following low-level syntax:
3150 \font\myfont = <general text> <at specifier>
3152 It feeds the <general text> to either kpathsea or a lua script for
3153 further processing after stripping the braces.
3155 In itself, this is not all that useful, but the reason for this
3156 syntax extension is that it paves the road for a macro package
3157 to do something like this:
3159 \font\myfont = {font="Times New Roman", color="\darkred",
3160 encoding="ec", features="liga", size=10bp}
3162 without having to resort to system-specific quoting mechanisms.
3163 Macro (and other) expansion takes inside the braced argument.
3165 (I am considering adding this extension to \input as well).
3167 * It is now possible to define a font into the font.fonts[]
3168 directly from lua, but becayse use is limited, I am only
3169 mentioning it to be complete.
3172 <number> id = font.define(<table> font)
3174 * There is a (not very reliable yet) virtual font parser accessible
3178 <table> vfdata = font.read_vf(<string> name, <number> size)
3180 The interpreter tries to give a reasonable representation of a
3181 virtual font file (the .vf file). Besides a few simple top-level
3184 designsize -- in scaled points
3186 name -- the file name
3187 checksum -- the vf checksum
3188 header -- the header comment (if any)
3190 it also has a top-level array 'fonts' wherein each item is a mini-
3191 array describing one of te mapped fonts. An example makes this
3194 "fonts" = { {"ptmr8a",655360}, {"psyr", 600000} }
3196 says that the first referenced font (index 1) in this virtual font
3197 is ptrmr8a.tfm loaded at 10pt, and the second is psyr.tfm loaded
3198 at a little over 9pt. These index numbers are used by the character
3199 command definitions that follow.
3201 At top level, there is a 'characters' array, just as for a normal
3202 font, except that each item has only two keys:
3204 "width" -- the tfm width (as stored in the .vf)
3205 "commands" -- an array of virtual font commands for a character.
3207 each of the items in the 'commands' array is itself a tiny hash.
3209 Each of those mini-hashes represents a single character packet
3210 command. Here is a 'commands' entry that contains every possible
3214 {"push"}, -- remember where we are
3215 {"right", 5000}, -- move right 0.08pt
3216 {"font", 1}, -- select the fonts[1] entry
3217 {"setchar", 97}, -- place character 97 'a'
3218 {"pop"}, -- go all the way back
3219 {"down", -200000}, -- move *up* about 3pt
3220 {"special", "pdf: 1 0 0 rg"} -- switch to red color
3221 {"rule", 500000, 20000} -- draw a bar
3222 {'special',"pdf: 0 g"} -- back to black
3226 * But the big news is that you can now define your own virtual fonts
3227 on the fly, by adding a few statements to the table returned to
3228 the 'define_font' callback.
3230 There are a few requirements:
3232 - The table has to have a top-level key 'type', and it's value
3235 The presence of this key with the specific value 'virtual'
3236 will trigger handling of the rest of the special virtual font
3237 fields in the table, but the mere existance of 'type' is
3238 enough to prevent luatex from looking for a virtual font
3241 Therefore, this also works 'in reverse': if you are absolutely
3242 certain that a font is not a virtual font, assigning the value
3243 'base' or 'real' to 'type' will inhibit tex from looking for a
3244 virtual font file, thereby saving you a disk search.
3246 - There must be a top-level 'fonts' array, as explained above.
3247 Any fonts that are not yet known to luatex at that moment,
3248 will be loaded automatically (Warning: do not ever use a font
3249 in 'fonts' with the same name you will return in the table you
3250 are defining right now!).
3252 - Each and every character in the fonts needs to have a 'commands'
3253 key, as explained above.
3255 The main point behind these restrictions is that a font is
3256 *either* a base font *or* a virtual font. It cannot be both
3260 ==============================================================
3261 Luatex snapshot-20070126 was released 20070126
3262 ==============================================================
3265 * Underscores in pascal identifiers are now retained.
3267 This took quite a bit of work. The web2c conversion tools
3268 needed only small adjustments, but most of the existing C
3269 code depended on the removal of the underscores. I had to
3270 go through changing many lines. 99% of all identifiers are
3271 now written the same on the pascal side as on the C side.
3272 This makes writing interface code quite a bit less confusing.
3274 Not everything is completely clean yet, because I did
3275 not want to change the web2c-specific C files. I often
3276 took the other approach and removed the underscores
3277 from the web2c options (like 'parsefirstlinep') in the
3278 change file instead. Ugly, but predictable.
3280 There is about a dozen or so of #defines left, that map
3281 memoryword -> memory_word
3285 * The virtual font parsing and interpreting is now done in C.
3286 (this is because it needs to be interfaced with the lua-based
3289 * I am in the process of merging: the VF stuff; the TFM stuff;
3290 the lua font loading; and the pdftex font backend into one
3291 interface, so there were some smallish changes relating to
3292 that as well. Nothing worth mentioning just yet except that
3293 luatex now will read "ovf" files as well as "vf" files.
3295 * There are a few really small bugfixes for bug reports I received
3296 on this list and by email.
3298 ==============================================================
3299 Luatex snapshot-20070119 was released 20070119
3300 ==============================================================
3302 The largest new bit is the existence of a font.fonts array, that you
3303 can use to query/adjust the internal defined tex fonts. See the manual
3306 Two small new lua extensions are added as well:
3308 * os.setenv() -- to change the environment
3309 * os.exec() -- a non-returning os.execute()
3311 And a bit of cleanup in the commandline processing.
3314 ==============================================================
3315 Luatex snapshot-20070117 was released 20070117
3316 ==============================================================
3318 * the pdftex core is updated to 1.40.1, and web2c to 7.5.6
3320 * the pdftex-specific documentation is removed
3322 * lua lpeg library updated to 0.4
3323 ( http://www.inf.puc-rio.br/~roberto/lpeg.html )
3325 * the C part of the lua md5 library is added to the binary
3326 ( http://www.inf.puc-rio.br/~roberto/md5/md5-5/md5.html )
3328 * --luaonly now puts the script itself at arg[0], and
3329 preceding commandline items in the negative indices
3330 (instead of starting the count at zero).
3331 This new approach is compatible with the standalone lua
3335 ==============================================================
3336 Luatex snapshot-20070107 was released 20070107
3337 ==============================================================
3339 Hot on the heels of 20070105, a new snapshot. It turns out
3340 that using the callback to define a font broke all ligatures.
3341 This snapshot fixes that, and it has a few minor updates to
3342 the manual. Next shapshot will be after the inclusion of
3345 ==============================================================
3346 Luatex snapshot-20070105 was released 20070105
3347 ==============================================================
3349 * the calculations that converted lua strings into tex units
3350 were horrendously wrong, this was discovered by Pawel.
3352 * io.lines() was still using the old, line ending sensitive,
3353 code from the lua core distribution
3355 * The main font memory is allocated as needed^(1) instead of
3356 statically pre-allocated.
3358 * ligatures and kerns are separated completely from each other,
3359 so use of \noligatures no longer inhibits kerning as well
3361 * Metrics can be loaded using a callback: 'define_font'.
3362 The value returned should be a lua table representing a tfm
3365 * there is a new lua table: font. It has one function:
3366 font.read_tfm() that returns a table reprentation of the tfm
3367 contents, for use with the above mentioned callback
3369 * I dropped suppport for "Level 1" OFM files. I would like
3370 to have a try at those extended font files, but I lack
3371 examples (fonts nor documents). I am not even sure such
3372 fonts have ever existed in the 'real world'.
3376 ==============================================================
3377 Luatex snapshot-20061208 was released 20061208
3378 ==============================================================
3380 * There is a new switch: --safer. This disables a number of lua
3381 functions that are more or less dangerous (a detailed list is
3384 * Two longstanding bugs have been fixed: \latelua works once
3385 again (patch by Hartmut) and a bug that caused mysterious crashes
3386 turned out to be a problem inside the paragraph builder
3387 (reconstitution of ligatures)
3389 * Six new string iterators have been added to the string library:
3390 string.characters (one 1-letter string)
3391 string.bytes (one byte)
3392 string.characterpairs (two 1-letter strings)
3393 string.bytepairs (two bytes)
3394 string.utfcharacters (a one-character utf-8 string)
3395 string.utfvalues (a unicode code point number)
3397 * The top 256 values of the unicode range (starting at hex
3398 value "10FF00) are now reserved for byte output. Characters
3399 in that range will be written by luatex after substracting
3400 that offset. The net result is that \char"10FFA9 is written
3401 as byte value hex A9 = decimal 169 = copyright sign in latin1
3403 This trick allows byte-oriented output to \pdfliterals and
3404 \specials, but should be considered very experimental.
3406 * There is a new callback called 'process_input_buffer' that can
3407 be used to mutate the line buffer just before LuaTeX actually
3408 starts looking at it.
3410 * The statistics table now has readable items
3412 statistics.lasterrorstring
3413 that represent TeX's current input id and the last error string
3415 * The show_error_hook callback no longer receives any arguments
3416 * There is a new switch: --safer. This disables a number of lua
3417 functions that are more or less dangerous (a detailed list is
3420 * Two longstanding bugs have been fixed: \latelua works once
3421 again (patch by Hartmut) and a bug that caused mysterious crashes
3422 turned out to be a problem inside the paragraph builder
3423 (reconstitution of ligatures)
3425 * Six new string iterators have been added to the string library:
3426 string.characters (one 1-letter string)
3427 string.bytes (one byte)
3428 string.characterpairs (two 1-letter strings)
3429 string.bytepairs (two bytes)
3430 string.utfcharacters (a one-character utf-8 string)
3431 string.utfvalues (a unicode code point number)
3433 * The top 256 values of the unicode range (starting at hex
3434 value "10FF00) are now reserved for byte output. Characters
3435 in that range will be written by luatex after substracting
3436 that offset. The net result is that \char"10FFA9 is written
3437 as byte value hex A9 = decimal 169 = copyright sign in latin1
3439 This trick allows byte-oriented output to \pdfliterals and
3440 \specials, but should be considered very experimental.
3442 * There is a new callback called 'process_input_buffer' that can
3443 be used to mutate the line buffer just before LuaTeX actually
3444 starts looking at it.
3446 * The statistics table now has readable items
3448 statistics.lasterrorstring
3449 that represent TeX's current input id and the last error string
3451 * The show_error_hook callback no longer receives any arguments
3453 * The statistics table now has readable items
3454 statistics.luabytecodes
3455 statistics.luastates
3456 statistics.luabytecode_bytes
3457 statistics.luastate_bytes
3458 for memory statistics reporting
3461 * The statistics table now has readable items
3462 statistics.luabytecodes
3463 statistics.luastates
3464 statistics.luabytecode_bytes
3465 statistics.luastate_bytes
3466 for memory statistics reporting
3469 ==============================================================
3470 Luatex snapshot-20061204 was released 20061204
3471 ==============================================================
3473 * The LuaTeX interpreter can now be run as a standalone lua script
3474 processor, by using a commandline like this:
3476 luatex --luaonly=luatools.lua
3478 * Luafilesystem (http://www.keplerproject.org/luafilesystem/ ) is
3481 * There are a total of eight new file discovery callbacks:
3490 this enhances the orthogonality of the callback system, nothing
3491 fundamental is changed.
3493 * There is a new callback called 'process_input_buffer' that can
3494 be used to mutate the line buffer just before LuaTeX actually
3495 starts looking at it.
3497 * The 'reader' and 'close' functions from 'open_read_file' now
3498 receive the table they are defined in as a function argument,
3499 that can be used as a per file localized data store.
3501 * Updated the Lua to the latest 5.1.1, with all known bug patches
3502 from the website applied as well
3504 * Runtime autoloading of lua .so files is now off on all platforms.
3506 * The statistics table now has readable items
3508 statistics.linenumber
3509 that represent TeX's current file name and line number
3511 * The support for user-defined type3 font .pgc files and the
3512 associated 'read_miscfonts_file' callback has been removed.
3513 (nobody used it anyway)
3515 * General cleanups to the source tree and build process.
3517 ==============================================================
3518 Luatex snapshot-20061023 was released 20061023
3519 ==============================================================
3521 * there was a missing callback: find_font_file
3522 * program_invocation_name was not set
3523 * buf_size could not be more that 300k
3526 ==============================================================
3527 Luatex snapshot-20061013 was released 20061013
3528 ==============================================================
3530 Last friday I uploaded a new snapshot and today I finally
3531 finished updating the manual to go with it. The changes all
3532 relate to startup, file i/o, and callbacks. The main achievement
3533 is: you can now run luatex without it *ever* initializing kpathsea.
3535 Because I am lazy, I have checked in the pdf of the manual
3536 as well, so that I can say: Please look at
3538 https://foundry.supelec.fr/plugins/scmsvn/viewcvs.php/manual/
3539 /luatexref-t.pdf?root=luatex&rev=148&view=log
3541 for all the details. :-)
3543 ==============================================================
3544 Luatex snapshot-20061002 was released 20061002
3545 ==============================================================
3548 * Some infrastructure changes:
3550 libs/slnunicode-0.9.1/ renamed to libs/slnunicode/
3554 (zziplib is using a different version of autofoo. I know I have
3555 messed up something in the build process, but the bit we need
3556 compiles ok so I've postponed attempting to fix it)
3558 * The callback logic has changed quite a bit.
3560 - all callbacks are now only possible in lua state 0.
3562 - The callback 'input_line' has disappeared, and is replaced by
3563 'open_read_file'. One of the return values of that callback
3564 is a table that defines a 'reader' function for line reading.
3566 See the manual for further information on this.
3568 - There are some new callbacks for the reading of various binary
3569 files. The current ones are:
3571 "read_ocp_file", "read_vf_file", "read_data_file", "read_font_file",
3574 The rest of the file types will follow soon (fonts, enc files, and
3577 - There are also some new callbacks that 'find' a file's pathname:
3579 "find_truetype_file", "find_type1_file", "find_image_file"
3581 here too, more will follow later.
3583 - the functions from io. that were copied to texio have been removed
3584 again. The new callbacks do not pass file pointers around, so
3585 they ere not longer needed
3587 - the 'open_write_file' is temporarily unavailable
3589 * startup.lua is now always loaded into lua state 0
3591 * The luazip library from kepler is linked in, so there the table 'zip'
3592 is accessible from all lua states.
3594 ==============================================================
3595 Luatex snapshot-20060922 was released 20060922
3596 ==============================================================
3598 * The texio table has gained a new function:
3600 tex_file = texio.open(filename)
3602 returns a file handle of a type that luatex can use
3603 internally (the return of io.open is unusable in callbacks
3604 because it will be garbage-collected at a random time)
3607 * In related news, there are two new callbacks you can define:
3609 callback.register('open_read_file', f)
3610 callback.register('open_write_file', f)
3612 where your function should have the following conventions:
3614 function f (number id_number, string asked_name)
3615 return boolean success, string actual_name, tex_file filep
3618 id_number: zero for the log or \input files or TeX's \read
3619 number incremented by one (\read0 becomes 1).
3620 asked_name: the user-supplied filename
3622 success: return false for error, true otherwise.
3624 The remaining two items are only looked at if you return true:
3626 actual_name: the true filename used (with extension!)
3627 filep: a file object opened though texio.open()
3630 * The tex.print function has an extra optional parameter:
3632 tex.print(ctt_id n, strings ...)
3634 This prints the strings using the catcode regime defined by
3635 \catcodetable n (assuming n is valid, see below)
3637 * The new function tex.sprint has the same lua conventions as
3638 tex.print, but behaces slightly different on the tex side:
3640 ** tex does not switch to the 'new_line' state (this implies
3641 that leading spaces are not ignored)
3642 ** no \endlinechars are inserted
3643 ** trailing spaces are not removed from the argument
3645 * Catcode tables are a completely new feature, that allows
3646 you to switch the current catcode regime in one simple
3649 \catcodetable <count>
3651 Switches to the use of a different set of catcodes (table),
3652 that is stored under the number <count>. Such a table has to
3653 be previously created using one of the two command below, or
3654 the number 0 (which is pre-inititialized)
3656 This command obeys normal grouping rules.
3658 \initcatcodetable <count>
3660 creates a new, global, independent catcode table with catcodes
3661 matching the code that are predefined by initex (tex -ini).
3663 This allocation is global
3665 \savecatcodetable <count>
3667 copies the current set of catcodes to a new, global, table
3668 with id number <count>. The definitions in this new table
3669 are all treated as if they were made in the outermost level.
3671 This allocation is global
3673 At the end of each grouping level, items within all existing
3674 catcodetables are restored, regardless of which one is the
3675 currently active table.
3677 Catcode table numbers cannot be larger than 0xFFFFFFF (228-1)
3679 * There is a new lua table: lua. It contains three read-only
3682 lua.id -- the id number of the instance
3683 lua.version -- a luatex version identifier string
3684 lua.startupfile -- the full filename (+path) of startup.lua
3686 and it also contains a read/write array:
3688 lua.bytecode[] -- lua executable bytecode
3690 This array can be used to save and restore lua functions
3691 across lua states. The accepted values are for assignments
3692 are functions and nil. Likewise, the retrieved value is
3693 either a function or nil.
3695 The contents of the lua.bytecode array is stored inside the
3696 format file, so it can also be used to preload lua code.
3699 * The format files are quire a bit smaller than before
3702 ==============================================================
3703 Luatex snapshot-20060915 was released 20060915
3704 ==============================================================
3706 * There is a new TEX primitive: \formatname. It is similar
3707 to \jobname (read-only). In initex, the expansion is empty,
3708 otherwise the expansion is the same as the \jobname from
3711 * the lua "tex" table has been expanded with a few of the 'convert'
3712 codes (read-only). The supported ones at this moment are:
3719 tex.pdfnormaldeviate
3726 This list looks haphazard, but it really is not. These are
3727 all the cases of the 'convert' internal command that do not
3728 require an argument.
3730 * The metatables of the subtables like tex.dimen[] etc. are now
3731 adjustable from lua (not that I recommend doing that;-)).
3733 * On the lua side, there is a new global value: "luaid"
3734 It holds the internal id number of this \directlua instance.
3736 * There is a new lua table, "callback", that has the single function
3737 "callback.register", used to register callbacks. This replaces
3738 the previous concoction (see my message about snapshot 20060901).
3741 callback.register(<callback name>,function (f) ... end)
3743 where the <callback name> is for the moment, either "input_line"
3744 or "show_error_hook".
3746 This function internalizes the callback function in such a way
3747 that you no longer have to worry about \luacallback (which has
3748 been removed), nor does it matter if you redefine a function
3751 The internal testing for callback presence is also quite a bit
3752 faster, thanks to this change. Callback assignments are global
3753 and the "input_line" always takes effect starting on the next
3754 input line to be read from an actual file.
3757 * \detokenizedlua has been removed. It is functionally replaced by
3758 the new function call tex.write("").
3760 Each argument to each call of tex.write () counts as an input
3762 ** all catcodes on that line are either 'space' (for " ") or
3763 'character' for all others.
3764 ** there is no \newlinechar appended.
3766 * The implementation of tex.print() has changed as well:
3768 ** the very last tex.print() line from a \directlua
3769 will no longer have a trailing \newlinechar
3770 (this is very convenient when \directlua is used
3772 ** tex.print() is quite a lot faster than before, and the total amount
3773 of returnable text from a \directlua is now only limited by
3774 available system RAM. However, each separate tex.print ()
3775 argument has to fit in TeX's input buffer.
3777 * The new primitive \luastartup can be set inside the format file
3778 to specify the lua instance number in which a possible runtime
3779 startup.lua script is executed (initex always uses 0)
3781 * There is a new primitive \scantextokens. Differences with
3782 eTeX's \scantokens are:
3784 ** the last line (usually only) from \scantextokens
3785 does not have a \newlinechar
3787 ** \scantextokens never raises an eof error.
3789 This means things like
3792 {\scantextokens{\ifnum1=1 true}\else false\fi}
3794 are legal input (but potentially dangerous!).
3797 local d = tex.dimen["unknowndimen"]
3798 'd' will now become "nil" instead of raising an error
3801 tex.dimen["unknowndimen"] = d
3802 is still (and probably will remain) illegal
3804 ==============================================================
3805 Luatex snapshot-20060908 was released 20060908
3806 ==============================================================
3808 * BIG CHANGE: \directlua now runs \scantokens internally.
3810 There is no longer a need to call scantokens yourself, the
3811 tex.print() output is now fed straight into a pseudo file.
3812 This is quite a bit faster as well as easier to use, but
3813 just in case you want it, the old behaviour is still present,
3819 * The texio library now has its own (partial) set of I/O commands,
3820 so that the standard lua io library is back to the distributed
3821 state (no more patched garbage collector)
3823 Note: This is really a very small change (it should not have any
3824 impact on wellbehaved input files), but I attempt to be complete
3825 in these notes, since there is no official documentation yet.
3828 * There is a new standard library available: kpse
3830 The most important function in that library is find_file:
3832 string = kpse.find_file(string filename
3834 [,boolean mustexist])
3836 both "type" and "mustexist" are optional, so the function
3837 has from one upto three arguments.
3839 "type" is like the '-format' argument of kpsewhich. You can
3840 run 'kpsewich -h' for a list. The default type is "tex".
3842 "mustexist" is like '-must-exist', and the default is false.
3843 If you specify "true" (or a nonzero integer), then the kpse
3844 library will search the disk as well as the ls-R databases
3846 The new library also has three other functions that map
3847 straight to kpsewhich commandline options:
3849 string = kpse.expand_path(string)
3850 string = kpse.expand_var(string)
3851 string = kpse.expand_braces(string)
3853 * There is a second callback possibility:
3855 texio.show_error_hook(string message,
3856 string|number indicator,
3859 This command is run from inside the TeX error function, and the
3860 idea is to allow you to do some extra reporting on top of what
3861 TeX already does (none of the normal actions are removed).
3863 "message" is the formal error message tex has given to the
3864 user (the line after the "! ")
3865 "indicator" is either a filename (when it is a string) or a
3866 location indicator (a number) that can means lots of different
3867 things like a token list id or a \read number.
3868 "lineno" is the current line number
3870 This is an investigative item only, comments are welcome but do
3871 not take the syntax seriously.
3873 The final goal IMO is the total replacement of TeX's error
3874 handling routines, but that needs lots of adjustments
3875 in the web source because TeX deals with errors in a somewhat
3876 haphazard fashion (it needs unification first). The current
3877 hook is only for 'testing the water'.
3879 * It is now possible to use named items in the
3885 subtables, so you can have
3887 tex.count.scratchcounter = 0
3888 local enormous = tex.dimen["maxdimen"]
3890 Luatex looks up the value for you on the fly. You have to use a
3891 valid \countdef (or \dimendef, or \toksdef), anything else will
3894 In a normal TeX file, you don't do \dimen\maxdimen, but the
3895 lua syntax seems to be a bit cleaner to me. The intention is
3896 to evntually also allow \chardefs and macros that expand
3897 into a number (todo)
3900 * The tex table has also been extended with a large list of internal
3901 parameters (partially read/write). It is possible to access
3902 about every primitive that you can use after \the *and* is a
3903 single token. So there is
3905 integer = tex.tracingcommands (\the\tracingcommands)
3906 integer = tex.prevgraf (\the\prevgraf)
3907 string = tex.output (\the\output)
3909 etc. for all of the internal parameters, but not the items
3910 that need extra arguments (like \the\scriptfont )
3912 The subset comprising simple integer and dimension registers
3913 are writable as well as readable (stuff like \tracingcommands
3916 The fact that both lists are still quite limited is a result of
3917 the very different types of things that can occur after \the and
3918 also on the LHS of an assignment. The remaining primitives will
3919 be filled in when there is a real need or implementation becomes
3920 simple, whichever comes first.
3924 ==============================================================
3925 Luatex snapshot-20060901 was released 20060901
3926 ==============================================================
3928 All changes are related to lua this time, and most are quite unstable
3929 / experimental. But first the things that are stabel/fixed bugs:
3931 * A VF loading bug that turned up in some of Hans' fonts
3934 * A small series of bounds checking fixes to \ocplist has been
3935 added to prevent the system from crashing due to array indexes
3936 running out of bounds.
3938 * The Lua file searching paths are now fixed. The search path for lua
3939 script files now contains the following items (tried in order)
3940 1. the local directory:
3942 (for document-specific files)
3943 2. the items from the expansion of kpathsea's $TEXMFSCRIPTS variable,
3944 but only the parts containing 'lua' as a subpath:
3945 $TEXMFSCRIPTS<lua>/?.lua
3946 $TEXMFSCRIPTS<lua>/?/init.lua
3947 (for format-specific files)
3948 3. the $SELFAUTOPARENT sibling directory named 'lib'.
3949 $SELFAUTOPARENT/lib/lua/5.1/?.lua
3950 $SELFAUTOPARENT/lib/lua/5.1/?/init.lua
3951 (for files that are not related to tex)
3953 The search path for dynamic libraries has only
3954 1. the local directory:
3956 (for document-specific files)
3957 2. and the $SELFAUTOPARENT sibling directory named 'lib'.
3958 $SELFAUTOPARENT/lib/lua/5.1/?.so
3960 (of course the extension is .dll on windows, but .dlls do not
3961 work at the moment so it will not do you much good)
3963 * There are two functions available within a new table called
3965 texio.write (luastring)
3966 texio.write_nl (luastring)
3967 both write the luastring to the same location(s) TeX writes
3968 its stuff. So if \batchmode is on, it writes only to the
3969 log, inside a \write, it prints to the current write file,
3972 A read|write interface to TeX's "file selector" will
3975 * At startup, luatex searches for a script named
3977 in the path list I explained above. If such a file exists, it is
3980 This happens right before the first input file needs to be opened
3981 (that is after format loading, but before any \everyjob tokens).
3983 From within the script, you can check the value of
3987 that is the 'format identification' as used by TEX. When the variable
3988 is equal to nil, luatex in in 'initex' mode, otherwise it will be
3989 something like: " (format=plain 2006.9.1)"
3992 Now for the experimental portion: callbacks. Here is what I have done
3995 * The main reason for wanting startup.lua is file (input) re-encoding.
3996 For this purpose, it is now possible to set up a callback for
3999 If you attach a Lua function to
4003 then from the next input line onwards, luatex will run that
4004 function whenever it needs a new input line from a text file.
4006 Your function will receive a file handle as argument, and
4007 should return either a string or nil (with nil signalling that
4008 the end of file has occurred).
4010 The trivial case is simply this:
4015 texio.input_line = reader
4018 Warning: The implementation is not totally finished yet. For the
4019 moment the file handle ("f" in the example) is a normal lua file,
4020 with a simple but important restriction: you cannot alter its value.
4021 You cannot f:close() it, or assign it a different value. luatex
4022 will eventually close the file itself.
4024 The restriction is a side-effect of a synchronisation problem with
4025 the lua garbage collector. Because of this, it also was necessary
4026 to turn off the automatic file closing code for normal lua io
4027 files (In other words: you have to close yourself all the files
4028 you opened yourself, and you should not close any files you did
4031 In the near future, "f" will become a special 'texio' file object
4032 and the needed functionality from the normal io library will be
4033 reimplemented. Along with that change, there will also be a callback
4034 to open (i.e. find) files, and a simple interface to the compiled-in
4035 kpathsea to use within that callback.
4038 ==============================================================
4039 Luatex snapshot-20060825 was released 20060825
4040 ==============================================================
4042 The main change in this snapshot is that it uses far less memory.
4043 luatex -ini on my linux machine went from 326Mb (last week) to
4044 93Mb (now), and "texexec luatex" now ends at 184Mb instead of
4047 This is achieved by two big changes:
4049 * The \mathcode, \delcode, \catcode, \sfcode, \lccode and \uccode
4050 tables are now sparse arrays that are implemented in C. They
4051 are no longer part of the TeX "equivalence table" and because
4052 each had 1.1 million entries with a few memory words each, this
4053 makes a major difference.
4055 See mathcodes.c and textcodes.c if you are interested in the
4056 gory details, but be warned: the code is still extremely
4057 rough and ugly. In particular, the dump and undump routines
4058 are far from optimal, resulting in somewhat larger format files
4059 than before (approx 1.3Mb larger with unicode-letters loaded,
4060 10k without); and the assignments do not show up when using
4061 the etex tracing routines \tracingassigns and \tracingrestores
4062 (code simply not written yet)
4064 * Single-character commands are no longer "special" internally,
4065 they are stored in the hash just like the multiletter csnames.
4068 ==============================================================
4069 Luatex snapshot-20060818 was released 20060818
4070 ==============================================================
4072 The snapshot is up to par with Aleph-RC4 (from texlive devel)
4073 and the latest pdftex beta (even newer than 20060811). However,
4074 there are some differences, to summarize:
4076 * There is no pool file (all strings are embedded)
4078 * -8bit and -translate-file are silently ignored
4080 * There is no mltex nor enctex (conflicts with aleph)
4082 * The tex functionality is always present and enabled
4083 (but see below about TeXXeT), so the asterisk or
4084 -etex switch for initex is not needed
4086 * "plus 1 filllllllll" does not generate any errors from TeX
4088 * TeXXeT (from eTeX) is not present, so the primives
4096 * The experimental pdftex regex match operations are removed,
4097 because that feature does not make much sense when lua is
4098 available so the primitives
4103 * The input translations from Aleph are not implemented, the
4104 16 related primitives are all missing
4110 \noDefaultOutputMode
4113 \DefaultInputTranslation
4114 \noDefaultInputTranslation
4117 \DefaultOutputTranslation
4118 \noDefaultOutputTranslation
4119 \noOutputTranslation
4121 All file IO assumes UTF-8, except that all the low-ascii
4122 controls except TAB, CR en LF are written to the terminal
4123 using ^^ notation (even these are binary in the log file).
4125 * Input characters can use the full range of Unicode,
4126 but it probably only makes sense to use values above
4127 the base plane for \mathcode and \catcode assignments,
4128 since the fonts as well as the hyphenation patterns
4129 are strictly 16-bit still.
4132 \pdfpagewidth and \pagewidth,
4133 \pdfpageheight and \pageheight,
4134 \fontcharwd and \charwd,
4135 \fontcharht and \charht,
4136 \fontchardp and \chardp,
4137 \fontcharic and \charic,
4138 are all aliases of eachother.
4142 clears a marks class completely.
4144 * The experimental pdftex primitives
4149 and provided without the extra 'pdf' prefix, so they are
4157 * I probably forgot to mention some things :-)