2 This file is in the public domain.
4 ==============================================================
5 Luatex beta-0.79.2 was released 20141111 (5082)
6 ==============================================================
9 * WARNING: the structure of the format file is changed.
10 After the Web2C \TeX's magic constant: "W2TX" there is now
11 a FORMAT_ID, a 32bit field that cannot be between 0 and 256 (included)
12 so that there are no conflicts with the preexisting structure
14 The value can be seen with --debug-format and currently is
15 907 (the sum of the values of the bytes of the ASCII string "don knuth").
17 * There is a new set of lua functions for StructElement and Attribute,
18 convenient (even if not indispensable) for tagged pdf.
21 * several bugfixes and improvements.
24 ==============================================================
25 Luatex beta-0.79.0 was released 20140328 (4960)
26 ==============================================================
28 * The luafontloader now returns 'tsidebearing' glyph values
29 for OT/TT fonts, if applicable.
31 * new lua variables: stats.luatex_hashtype, stats.luatex_hashchars,
32 stats.lastluaerrorstring; the luajittex string hash method is now
33 lua 5.1 compliant which gives better results for similar strings
35 * new lua functions: tex.init_rand(), tex.uniform_rand(),
36 tex.normal_rand(), tex.lua_math_randomseed(), tex.lua_math_random(),
37 tex.show_context(); these helpers make luatex and luajittex compatible
39 * In the lua node interface, there were often issues with rubbish
40 in (especially) 'prev' fields because luatex itself never looks
41 at those values. This is now cleaned up to prevent weird stuff
42 happening inside lua node processing code.
44 * pdf.pageattributes, pdf.pagesattributes, pdf.info, pdf.catalog,
45 pdf.names and pdf.trailer now behave consistent and can be used
46 to add these properties at the lua end in addition to their \pdf*
47 counterparts atthe tex end; there are now pdf.get* and pdf.set*
48 commands for them too (in future versions the old ways can become
51 * new accessors pdf.geth, pdfgetv, pdfgetpos, getgetmatrix as well
52 as pdfhasmatrix helpers (in future versions the direct pdf.h and
53 pdf.v accessor can become obsolete)
55 * the pdf.pdf* variables have been removed (they were already
56 obsolete for some years)
58 * a new properties mechanism for associating lua tables with nodes
59 that get cleaned up when nodes a freed (see manual for details)
61 * several improvements to the way temporary (backend) data is stored
62 at the lua end (better protection, more consistent)
64 * a 'l' type for user nodes that holds a lua variable (can be set
67 * if a late lua node is set at the lua end the string value can be
68 a function as well which is then executed during serialization to
71 * Various small speedups
73 * Various smallish fixes to the node direct interface
75 * LPeg is now at version 0.12
77 * Some small fixes to the CFF (font) parsing
79 * Font file inclusion reporting messages on the terminal now
80 comply to the texconfig.trace_file_names setting
82 * Removed some of the additional luafontloader.info() return
83 information that was added in 0.78.2, but could not work
86 * new primitive \luafunction (see manual), with associated
87 lua.get_functions_table() function
89 * lua error message reporting has been altered a bit to make
90 the distinction between \directlua and other lua source code
93 * Additional pdf document data functionality in the 'pdf' table
94 has been cleaned up internally
96 * Additional pdf destination names can now be set via lua.
98 * New callbacks: finish_pdfpage, show_error_message,
99 show_lua_error_hook, start_file, stop_file
101 * Handling of \tracinglostchars is fixed
103 * Embedded metapost library version is now 1.900
105 * luajittex is now included in the distribution. One can use
106 buildjit.sh to build both luatex and luajittex, where
107 supported by the platform
109 * Synchronization with the TeXLive sources updated the following
111 * libpng is now 1.6.10
112 * poppler is now 0.25.2
114 ==============================================================
115 Luatex beta-0.78.2 was released 20140113 (4748)
116 ==============================================================
118 * Extended luafontloader's info() function to include data
119 from the 'pfminfo' and 'names' structure.
121 * Fixed a bug in the luafontloader library that made loading
122 some fonts extremely slow (LastResort.ttf)
124 * Removed a recent extension in the luafontloader library that
125 made loading fonts with lots of glyphs slow (ArialUnicoce.ttf).
126 Note: the extension made sure that there were no duplicate
127 glyph names in the font after loading.
129 * Restored --recorder output for lua files (dofile/loadfile/io.open)
131 * One-at-a-time pattern adding from lua used to require enormous
134 * luatex's fontloader.to_table() no longer reports 'altuni' table
135 information for alternates that are solely driven by the font
136 encoding. This fixes loading time issues for fonts that fill
137 encodings by copying a single glyph many times, like e.g.
138 LastResort.ttf from Apple.
140 * The datestamp no longer appears in any banners. The associated
141 \luatexdatestamp primitive is deprecated and will be removed
144 * Synchronization with the TeXLive sources updated the following
146 * cairo is now 1.12.16
147 * pixman is now 0.32.4
150 * poppler is now 0.25.0
152 * That same TL synchronization also fixes these issues:
153 * Always write "\nendstream" to the PDF for PDF/A-1b compliance.
154 * Large file support (>4GB) in Lua
155 * Big images could overflow on systems where sizeof(long)=4.
156 * In writing CID CFF fonts to the PDF, and end_dict() was missing.
157 * Unknown 'post' table versions (found in some broken ttf/otf
158 fonts) are now treated as-if they specified version 3.0.
159 * Fix crashes on 32-bit systems caused by bad C header inclusion
161 * Handle '--luac' and '--luaconly' properly
162 * luatex is now released under GPLv2+, not just GPLv2.
163 * luatex can now find .ofm metric files even if the extension
164 is not given explicitly.
166 * node.unset_attribute() was broken in 0.78.0
168 * The UTF-8 commandline patch from 0.78.0 for Win32 was removed
169 again (did not work properly)
171 ==============================================================
172 Luatex beta-0.78.0 was released 20131231
173 ==============================================================
175 * Instead of using expanded fonts, just calculate the expanded
176 width of glyphs where needed, and carry expand info in the
177 glyph nodes (all based on Hans' suggestions). All font expansion
178 functions are disabled and most are removed.
180 * New, faster (but limited) direct node access from lua, see
181 the manual for details
183 * Support for Apple Advanced Typography (AAT) information in
186 * Extended build script for mingw/msys (includes 64-bit support)
188 * Various patches from/via Akira Kakuta for better Win32
191 * Fixes for some bugs in de pdfscanner library (mostly related
194 * Maximum hyphenated word length is now 64Kb characters.
196 * Various patches from Khaled Hosny and Luigi Scarso for the
197 luafontloader subsystem
199 * Fix for a crash when re-dumping formats
201 * Fix for a Selene unicode library bug where some characters in
202 UTF-8 were incorrectly flagged as having the 'Space' property
206 ==============================================================
207 Luatex beta-0.76.0 was released 20130405
208 ==============================================================
212 * Small patches from TeXLive 2013, as well as an update to the
213 latest libraries (libpng, poppler, etc.)
215 * Speed up printing (of TeX strings) to the terminal and log.
217 * New lua function node.end_of_math().
219 * Fixed a memory leak in the lua function pdfscanner.scan().
221 ==============================================================
222 Luatex beta-0.75.0 was released 20130301
223 ==============================================================
227 * New expandable primitive \Uchar.
231 * New version of lnodelib.c with speedups by Hans and Luigi.
232 Also added some extra sanity checks to the Lua node field
235 * Support 'umath' in tex.extraprimitives(), so that formats can
236 make the \Umath* primitives unprefixed, now that they will be
237 provided by XeTeX as well.
239 * Removed a bunch of deprecated primitives
240 * \AlephVersion, \Alephrevision, \Alephversion, \Alephminorversion
241 * \OmegaVersion, \Omegarevision, \Omegaversion, \Omegaminorversion
242 * \omathcode, \odelcode, \omathchardef, \omathchar, \omathaccent,
243 \odelimiter, \oradical
244 * \Umathbotaccent, \Umathaccents
246 * Fix large file support.
248 * Fix Lua's loadfile().
250 * Removed the cidmap callbacks again (let that be done by user lua
251 code after the fact).
253 * Removed the fatal error on fonts where num_glyphs is too high,
254 as that problem is actually harmless.
256 * Some compilation issues under Win32 and Solaris resolved.
258 * Allow math extender objects to be zero width.
260 * The 'epdf' library has been extended to deal with finding and
261 saving embedded files (catalog:numEmbeddedFiles() and catalog:
262 embeddedFile, new EmbFile object).
264 ==============================================================
265 Luatex beta-0.74.0 was released 20121224
266 ==============================================================
271 There are no patches to the core Lua files; a future version
272 of luatex will switch to loading the regular lua 5.2 dynamic
273 library instead of depending on a statically compiled
276 * A bleeding-edge version of luasocket is included, as there
277 is no 5.2-compatible official release yet.
279 * A new lua extension is the two-argument version of
280 string.dump from Luajit:
282 string.dump(function f, [boolean strip])
286 * The implied existence of the following lua libraries is now
289 debug, unicode.*, luazip, lfs, lpeg, zlib, gzip, md5,
290 socket.*, profiler, epdf, fontloader, mplib, and
293 Future versions of luatex will load these modules on demand
294 from dynamic libraries.
296 Please update your sources to include a 'require' line for
297 each of the library modules mentioned.
299 * Two new callbacks: find_cidmap_file and load_cidmap_file
300 (used by the fontloader to discover .cidmaps)
302 ==============================================================
303 Luatex beta-0.72.0 was released 20121210
304 ==============================================================
308 * update various used libraries, including mplib 1.770,
309 poppler 0.21, libpng 1.5, and lpeg 0.10.2.
311 * new 'pdfscanner' lua library.
313 * various OpenType math fixes, including \Umathcharnumdef.
315 * improved placement of bottom accents.
317 * various other small fixes that have accumulated over the past
320 ==============================================================
321 Luatex beta-0.70.1 was released 20110519
322 ==============================================================
326 * fixed: recorder file location from TL (Akira).
328 * fixed: missing newline on 'No output' line.
330 * fixed: relative names in synctex file.
332 * fixed: 16bit png images in generated %!PDF-1.4.
334 * fixed: building with (installed) libpng < 1.5.0
336 * fixed: year in --version output.
338 * fixed: box output to synctex.
340 * fixed: FontDescriptor for non-embedded OpenType fonts has an
341 invalid FontFile3 entry (#654)
343 * fixed: crash on non-existent images.
345 * fixed: small memory leak in the ipc code.
347 * fixed: tex.print() and tex.sprint() don't recognize -2 as the
348 first argument (#659)
350 ==============================================================
351 Luatex beta-0.70.0 was released 20110506
352 ==============================================================
356 * fixed: various changes needed for libpng 1.5.2.
358 * fixed: node.fields() for nodes without subtype.
360 * fixed: non-argument use of os.execute().
362 * fixed: tex.[s|t|]print() with invalid catcode table arguments.
364 * fixed: recorder filename location with --output-directory.
366 * fixed: display alignment in TRT mode.
368 * luatex now uses the standard synctex files from Jérome Laurens.
371 ==============================================================
372 Luatex beta-0.66.0 was released 20110412
373 ==============================================================
377 * fixed: linebreak_filter doesn't do its default job when
378 tex.linebreak is used
380 * fixed: \escapechar ignored by \meaning
382 * fixed: wrong px default
384 * fixed: font kern attribute inheritance
386 * fixed: "nop" unrecognized in virtual fonts
388 * fixed: assertion failure in dviluatex when font ptmr8t used
390 * fixed: tex.settoks for with strings with embedded zeroes
392 * fixed: an indexing problem with nonexistent font glyphs
394 * fixed: some crashes and other bugs on the 'subtype' and 'prev'
395 fields (not all node types have those fields)
397 * fixed: crash on token.csname_id ("")
399 * fixed: initialize the statically allocated node's type ids
401 * fixed: fencepost error in math parameter counting
403 * fixed: math family numbers > 255 are allowed
405 * fixed: compilation failure on Hurd
407 * fixed: a small bug leading to displacements when reading
410 * fixed: \directlua followed by \pdfximage generates error if
413 * fixed: a problem with \vadjust pre in alignments
415 * fixed: a lua stack growing problem in the backend in 0.65.0,
416 resulting in an inability to create more than a few thousand
419 * fixed: inclusion of Scribus-generated pdfs
421 * adapt: the default form margin is now zero (was 1bp before)
423 * adapt: libpng 1.4.4, zzuplib 0.13.60, mplib 1.504
425 * adapt: small changes to the build system and new imports from
426 the texlive repository
428 * feature: new function node.currentattr() queries the current
429 active attribute list
431 * feature: Lua font loading; ignore unknown enumeration keys in
434 * feature: JPEG 2000 image support
436 * feature: continuing work on the 'epdf' library
438 * doc: the 'epdf' lua library is now documented
440 * doc: various other manual corrections
443 ==============================================================
444 Luatex beta-0.65.0 was released 20101213
445 ==============================================================
449 * The Aleph and Omega version primitives are deprecated.
451 * The Apple Snow Leopard Truetype font collections now work
454 * Libpng has been updated to 1.4.4, and zlib to 1.2.5.
456 * New lua functions node.next() and node.prev().
458 * The already deprecated for some time node.protrusion_skipable()
459 function has been removed.
461 * fontloader.apply_featurefile() and fontloader.apply_afmfile()
462 now return nil,<errortable> on failure.
464 * The various node list fields in the lua node interface have
465 been renamed from 'list' to 'head', e.g. tex.box[0].head,
466 and the 'list' name is deprecated. For now, the deprecation
467 is silent, as 'list' will stay for quite some time. Please
468 update your lua source as soon as possible, though.
470 * The call node.type(<node>) now returns "node". The existing
471 functionality is otherwise unchanged.
473 * Luafilesystem has been updated to 1.5.0. NOTE: there is an
474 incompatible change in the directory iterator method.
476 * The restriction on linebreak_filter has been eased: at least one
477 horizontal box should be returned, but that is not necessarily
478 the last node any more.
480 * Backward compatibility has been restored for \meaning\mathchar
482 * node.first_character() has been renamed to node.first_glyph()
483 to better match its actual functionality.
485 * The \Umathaccent primitive now supports both/bottom keywords,
486 and \Umathbotaccent / \Umathaccents are now deprecated.
488 * The \Umathaccent primitive now also supports the fixed keyword,
489 which supports non-growing math accents even if the font says
490 there are extensible variants.
492 * Ongoing work on the epdf library.
496 * Assignment to \dimen65535 was broken earlier.
498 * <box>.head.prev is now always initialized to null (0).
500 * luatex -lua=<script> '\relax' no longer exits immediately,
501 instead going into interactive mode as it should.
503 * The \jobname was initialized wrongly for input file names
504 with multiple dots in them.
506 * The synctex file is now written in the right place when
507 --output-directory is given.
509 * \letterspacefont could cause crashes, especially when combined
512 * Luatex would crash on linux32 systems if it was build in an
513 environment where LFS (>2GB files) was enabled by default.
515 * Node lists created by node.copy_list() could not be hyphenated
516 due to an assertion error.
518 * Synctex support was partially broken since 0.60.0.
520 * With OpenType math fonts, accents with multiple parts
521 (like the \vec arrow) forgot to include all parts if the
522 accentee was too narrow.
524 * With OpenType math fonts, accents over any class except 0 and 7
527 * kpse.lookup("plain", {all = true}) was broken in kpathsea
528 itself (no extension given as well as --all specified).
530 * A FontForge bug made Cambria Math accents look bad, and the
531 placement of math top accents did not allow a marker at the
532 origin (patches by Stefan Philipp)
534 * Cut&Paste from PDF was sometimes broken due to bad ToUnicode map.
536 * Many small manual improvements (thanks to Paul Isambert)
538 * An other bugfix to lpeg 0.9 (from Roberto Ierusalimsky)
540 * Some small fixes to writet1.w (from Han The Thanh)
542 * A build failure because of bad libz configuration on Win32
544 ==============================================================
545 Luatex beta-0.64.0 was released 20101112
546 ==============================================================
550 * New lua functions pdf.refobj(), pdf.maxobjnum() and pdf.objtype()
552 * New lua function node.is_node()
554 * The max_strings configuration variable's maximum value is
555 raised to be identical to texlive's maximum (2097151), and
556 same for param_size (32767).
558 * The embedded mplib is now 1.503.
560 * Minor cleanups in the output of fontloader.to_table():
562 - removed out-of-range altuni's from the output
563 - don't dump the extra encodings, just the actual font encoding
564 - export the encoding's name also as 'enc_name' at one level up
565 - no longer exporting unset macstyles, nor zero uniqueids
566 - fix creationtime and modification time
568 * Ongoing work on the epdf library
572 * Fix a bug where an explicit hyphen prevented hyphenation for the
573 whole rest of the paragraph
575 * Internal font copying forgot to copy the last font dimen
577 * os.selfdir() is now documented
579 * patch quad (\fontdimen6) in \letterspacefont to be compatible
582 * Multi-page pdf inclusion was very slow in 0.63.0
584 * Some extra checks added to the handling of glue_spec node
587 * Some node.prev pointers have been corrected (but this is not
590 * A small fix to lpeg 0.9.
593 ==============================================================
594 Luatex beta-0.63.0 was released 20100909
595 ==============================================================
599 * Drop tex.ht[], tex.wd[], tex.dp[].
601 * Drop OCP support (and associated primitives).
603 * Add tex.catcode[], tex.lccode[], tex.sfcode[], tex.uccode[],
604 tex.mathcode[] and tex.delcode[] and associated functions.
606 * Add CIDset tables to the output pdf where appropriate.
608 * Added a 'string' field to late_lua nodes on the lua side. This
609 field does not convert the assigned string to a tokenlist.
611 * The result of fontloader.open() now has some virtual accessors
612 (as well as fontloader.to_table).
614 * There is now a `short reference' in the manual folder
619 * Fix a crash on an empty font (bugreport #468).
621 * Fix a crash for extremely long pattern arguments.
623 * Fix a crash on bad virtual character arguments in lua.
625 * Fix hyphenation exceptions.
627 * Prevent linebreak between initial local_par paragraph whatsit
628 and a following skip (bugreport #437).
630 * Fix placement of scripts on textstyle big operators in MATH
631 fonts (bugreport #466).
633 * Fix a crash on the return value of MPlib's 'postscript'
636 * Fix a crash on \leftghost & \rightghost in math mode.
638 ==============================================================
639 Luatex beta-0.62.0 was released 20100823
640 ==============================================================
644 * LuaTeX now uses libpoppler (0.12.4) instead of xpdf.
646 * All backend functions now report what file they were searching
647 for whenever a file cannot be found.
649 * Input-ed lua files are now mentioned in the fls file if
650 the --recorder switch is specified on the command line.
652 * Paragraph indentation hlist nodes and hlist and vlist nodes
653 generated by alignment rows and cells now have a subtype
654 (3 for indent box, 4 for rows/columns, 5 for cells).
656 * The 'epdf' lib is in active development and still growing.
658 * The 'fontforge' table is finally removed (was deprecated
663 * A new mplib import fixes two bad bugs in mplib:
664 - string equality test was wrong
665 - type declarations could delete pre-existing variables
667 * PNG images with transparency could create random size
668 differences in the generated PDF.
670 * In some special cases, font expansion could cause wrong
671 spacing in the generated PDF.
673 * \letterspacefont was broken since a very long time.
675 * The node subtype of the \leftskip and \rightskip glues was
678 * Some memory leaks have been removed.
680 * Various manual fixes.
682 ==============================================================
683 Luatex beta-0.61.0 was released 20100728
684 ==============================================================
688 * New lua library 'epdf' for introspection of PDF inclusions,
689 see the manual for details.
691 * Mplib version 1.502 is now included (which is still beta,
694 * new "finish_pdffile" and "pre_dump" callbacks.
696 * new function pdf.pageref()
698 * In the lua 'tex' library: assignment to internal glue
699 parameters is now allowed.
701 * New lua function tex.error().
705 * Fix for crashes on fonts with bad Panose values.
707 * Fix for a box placement bug that could sometimes cause text
710 * Fix for a few small PDF/A1-a compatibility bugs.
712 * Fix \letterspacefont.
714 * Fix \Ustopdisplaymath in combination with aligned displays.
716 * In math delimiters, the last of a chain of predefined sizes
717 was always ignored if there were also extensible parts.
719 ==============================================================
720 Luatex beta-0.60.2 was released 20100701
721 ==============================================================
725 * Various small portability fixes, especially for non-gcc
728 * Updated synctex from Jerome Laurens.
730 * fix bug #406: \pdfliteral hinders hyphenation.
732 * fix pdf overprinting bug (related to \pdfliteral).
734 * patch from Akira Kakuto that ensures that only absolute commands
735 that are inside the %PATH% will be executed in win32's restricted
738 * fix a buffer overflow in luafontloader.
740 * fix cross-platform share-ability of generated formats.
742 * fix a few typos in the manual.
744 * fix trashing of the null glue spec by attribute reference code.
746 * documented the deprecated state and brokenness of otp processing.
749 ==============================================================
750 Luatex beta-0.60.1 was released 20100428
751 ==============================================================
755 * renamed node.skipable() to node.skippable().
757 * More git discovery patches in getluatexsvnversion.sh.
759 * Added --warnings=[no|min|yes|max|all] option to build.sh.
761 * While cross-compiling, build.sh now adds an extra linker switch
762 to allow win32 exes to use 3G instead of 2G of virtual memory.
766 * os.exec() & os.spawn() handled the environment differently from
767 os.execute() on Win32 (patch from Tomek)
769 * Builds with --enable-ipc were broken.
771 * Assigning and acquiring \fontdimen s from TeX code was broken.
773 * An initial attempt at fixing bug #372 (\predisplaydirection).
775 * An attempt to fix \eqno/\leqno placements in mixed direction
778 * Our local xpdf patch is reverted, it is not needed any more.
780 * The os.selfdir variable was not documented, as well as broken
783 * Fix "\input tikz hello \bye" bug, plus fix one sign error.
785 * Fix handling of lua script files with UNC names.
787 ==============================================================
788 Luatex beta-0.60.0 was released 20100404
789 ==============================================================
793 * os.name now knows about CYGWIN (from Elie Roux)
795 * Internal handling of direction specifiers is faster now.
797 * Each glyph node now has three new virtual read-only fields:
798 width, height, and depth (values in scaled points, of course)
800 * There are new functions node.protrusion_skipable() and
801 tex.badness() (useful for paragraph breaking in lua)
803 * Also new: tex.linebreak(). See the manual for details.
805 * All lua errors now report file and line numbers to aid in
808 * Import of metapost 1.211.
810 * pdf.pdfcatalog will be replaced soon by the new pdf.catalog
811 pdf.pdfinfo will be replaced soon by the new pdf.info
812 pdf.pdfnames will be replaced soon by the new pdf.names
813 pdf.pdftrailer will be replaced soon by the new pdf.trailer
815 * pdf.pdfmapfile and pdf.pdfmapline are replaced by the new
816 pdf.mapfile() and pdf.mapline() functions. (a function interface
817 fits these parameters better because they never return anything).
819 * New read-write lua variables: pdf.pageattributes, pdf.pageresources,
822 * getluatexsvnversion.sh now correctly detects git-svn and still
823 manages to find a valid SVN revision number (from Patrick Gundlach)
825 * Many of the source files have been converted to CWEB.
829 * GNU libtool is now used to solve the various technical issues with
830 dynamic loading of lua modules.
832 * Error detection in scan_integer_part was wrong due to missing
833 initialization of OK_so_far (spotted by Javier Mugica)
835 * Synctex was broken in 0.51-0.52.
837 * \lastlinefit was broken since ... well, nearly forever.
839 * Reading of binary files with length zero was broken.
841 * Trapping of unitialized rules (this was for sloppily created
844 * pdf.immediateobj('streamfile') was broken on 64-bit platforms.
846 * tex.linebreak did not take the given left and right skip, but
847 instead used the current TeX-side values (bug #356).
849 * the found 'MAKE' command in build.sh is now fed into configure to fix
850 problems with that not finding GNU make even when it is actually
853 * dofile(<nil>) and loadfile(<nil>) in batch mode now give an
854 error and continue instead of pointlessly waiting for user input.
856 * Reverted commit #3417 (the buildpage experiment) as it causes bad
857 things to happen when items are waiting during page breaks.
859 * Overrule loaders[4] in --safer mode, make require() behave
860 closer to normal lua 5.1, and add some nicer error messages
861 (based on an email and patches from Manuel Pegourie-Gonnard)
863 * Added an extra sanity check for GDEF loading in luafontloader,
864 based on a crash caused by Linux' AkaashNormal.ttf.
867 ==============================================================
868 Luatex beta-0.52.0 was released 20100316
869 ==============================================================
873 * Various small manual improvements.
875 * A better version of getluatexsvnversion.sh, from Tomek.
877 * node.copy_list() now allows the second (optional) argument to
880 * An import of the current state of the texlive repository
881 (kpathsea and build system).
885 * An attempt fix for bug #345 (math kerning is not perfect): when the
886 current math font is a new math font, check against \catcode <cur_c>
887 == 11 to suppress the italic correction, instead of looking at
888 the value of space(<cur_f>).
890 * There is a new <tfmtable> key: 'units_per_em' (defaults to 0).
891 This is part of a fix for bug #200 (Problem with CFF fonts having
892 em-size other than 1000): there is a special correction to the
893 embedded cff font itself and the font scale if the font to be output
894 is opentype or type1 in unicode encoding and the 'units_per_em
896 <tfmtable>.units_per_em has to be passed back to luatex from
897 the lua font loading code for this to work.
899 * A fix for bug #314 (problem with pk file).
901 * lua code can no longer change the internal preallocated glue_spec
902 nodes (as that resulted in weird spacing bugs). For this, glue_specs
903 now have a new field: 'writable'. If that field is false, a copy
904 has to be made of the glue_spec instead of doing an assignment
907 * Setting of \textdir inside the output routine could trash output
908 on following pages due to a lingering internal variable.
910 * \pdfthread crashed because the arguments were handled in reverse
913 ==============================================================
914 Luatex beta-0.51.0 was released 20100312
915 ==============================================================
919 * Various small manual improvements.
920 * The backend message "cannot open Type 1 font file for reading"
921 now reports which Type1 font it was looking for.
922 * Fontforge clears some font names at loading time that will be
923 refilled in at font generation time, but the fontloader should not
924 do that. Patch from Khaled Hosny.
925 * New synctex code imported from TeXLive.
926 * luamd5/md5.h is renamed to luamd5/luamd5.h to avoid confusion.
927 * Embedded mplib is now 1.209.
928 * Some experimental tweaking of buildpage_filter, see the manual
930 * Luatex now detects kfreebsd (from Alan Braslau)
931 * The new lua function tex.sp() converts a string to a number
932 representing scaled points.
933 * There is now support for revision numbers in the banner and stats
935 * The command line help and manual documentation page is extended.
936 * node.hpack() now also accepts "cal_expand_ratio" and "subst_ex_font"
938 * node.hpack() and node.vpack() now give back the badness of the box
939 as second return value.
940 * node.copy_list() now allows a second (stop) argument, this stopper
942 * new lua functions in lfs: lfs.readlink() and lfs.shortname().
943 * new lua function tex.tprint() that can combine multiple catcode
944 regime prints in one function call.
945 * new lua sub-table: tex.nest[] (read/write access to the semantic
947 * New lua functions in kpse: kpse.lookup() and kpse.version(). See
948 the manual for more details.
949 * New lua function tex.shipout().
953 * There problems in the pdf output for Type3 (pk) fonts.
954 * Fix a bug that allowed bad commandline quoting.
955 * Fix a bug that sometimes caused crashes when \pdfprotrudechars.
956 * The build script now exports CONFIG_SHELL to avoid problems with
958 * The was a bug in the generated /Image /ProcSet.
959 * status.font_bytes reported the wrong value.
960 * Lots of compiler warnings are removed (thanks Javier Mugica).
961 * Patch to fontloader.info() to accept filenames with embedded
963 * Fix a \write error with docstrip package.
964 * Fixed a crash on AdobeMyungjoStd-Medium.otf.
965 * Fix coco stack overflows, needed for lpeg.
966 * \pdfcompresslevel wasn't initialized for early immediate objects.
967 * Fix for slanted fonts when HZ was on (slant angle was multiplied).
968 * When concatenating content streams, put a space between them.
969 * Allow pfb lines to end with \r as well as \n (for msam10.pfb).
970 * Fix the internal string->scaled point conversion in the lua
972 * Memory leaks in the fontloader removed, thanks to patches from
974 * Fix a crash caused by the combination of coroutines and font.each().
978 * Support for Type3 .pgc files (nobody used them).
980 ==============================================================
981 Luatex beta-0.50.0 was released 20091224
982 ==============================================================
986 * Fonts now listen also to the 'extend' key in the lua font
987 metrics table, and the processing for this is done via de
988 pdf text matrix instead of via the font matrix, which means
989 it now works for all font types.
991 * The embedded Metapost library is now at version 1.209.
995 * It is no longer possible for fonts from embedded pdf files
996 to be replaced by / merged with the document fonts of the
997 enveloping pdf. This regression may be temporary, depending
998 on how the rewritten font backend will look after beta 0.60.
1002 * Use of \middle confused the \mathstyle operation.
1004 * \pdfcolorstack handling was broken.
1006 * node.unset_attribute() had a bug whereby it inverted the
1007 requested result in some cases (the node on which the unset
1008 was called was sometimes the only node at the current level
1009 that *kept* the attribute).
1011 * During font expansion, the internal font copy had one character
1012 information object less than the original, resulting in the
1013 disappearance of a glyph in some fonts when font expansion
1016 * Placement of operator scripts of OT MATH fonts is adjusted
1017 to be conformant with Word's logic where the italic correction
1018 is only used to tuck in the subscript and for nothing else.
1020 * luafontloader.open() no longer writes directly to stderr in
1021 case of internal font errors.
1023 * Any <pdf_refobj_node>.objnum could not be assigned to.
1025 * The lua 'pdf' table could not be assigned to.
1027 * The lua 'md5' library was returning incorrect results on
1028 64-bit architectures.
1030 * Luatex now compiles on GNU Hurd systems.
1032 * Fix segfault when embedding stream file object (these
1033 backend segfaults were a side-effect of the string pool
1036 ==============================================================
1037 Luatex beta-0.47.0 was released 20091218
1038 ==============================================================
1042 * New read-write lua variables pdf.pdfcatalog, pdf.pdfnames,
1043 pdf.pdfinfo, pdf.pdftrailer
1045 * The horizontal mode nodes that are added to lines during line
1046 breaking now inherit the attributes from the first and last node
1047 inside the created line.
1049 * The new function pdf.registerannot(<number>) registers an
1050 annotation object number to be included in the current
1051 page's /Annots list.
1053 * The variables <metrics>.Mathconstants.FractionDelimiterSize
1054 and <metrics>.Mathconstants.FractionDelimiterDisplayStyleSize
1055 are added to the font table. This allows proper setting of the
1056 size parameters for TeX's ...withdelims math primitives.
1058 * The internal representation of the string pool is reorganized
1059 (the pool of string characters is now allocated dynamically),
1060 and as a side-effect the lua variable status.init_pool_ptr
1061 is deprecated and will be removed in a later version. Also,
1062 status.pool_ptr now simply returns the current number of bytes
1063 in use for string characters.
1065 * There are new lua variables pdf.pdfmapline and pdf.pdfmapfile
1066 (write-only strings that mimic \pdfmapline and \pdfmapfile).
1068 * \pdfobj data and attribute are now stored as C strings instead
1069 of as token lists (this should speed up cases with a lot of data).
1071 * Artificially slanted fonts now work via the pdf text matrix
1072 (instead of adjusting the actual font) so that it now also
1073 works for non-Type1 fonts. The lua <metrics>.slant font key is
1074 now obeyed in all cases.
1076 * The lua function font.id(<string>) returns the internal font id
1077 number belonging to a control sequence name.
1079 * Pdf image inclusion is optimized such that objects from an
1080 external pdf will now be included only once even if they are
1081 referenced from multiple inclusions.
1085 * Protrusion for non-TLT documents did not work properly for
1086 the hyphenation character.
1088 * \lastbox could not remove the paragraph indent box for non-TLT
1091 * Pdf images (\pdfximage) are no longer kept open during the
1092 whole run, but closed and reopened. An error is raised if
1093 the file has changed between \pdfximage and \pdfrefximage.
1094 This prevents the 'too many open files' error when lots of
1095 images are included.
1097 * On Win32 Pdf image files are locked during the time that it is
1098 open, to prevent unnoticed file changes by external sources.
1100 * Compilation now again works on FreeBSD.
1102 * Format sharing between 32-bit and 64-bit architectures was
1105 * Unsetting attributes from lua could sometimes result in
1106 the unset state persisting beyond the current group level.
1108 * If something went wrong in the scanning of pdf action items,
1109 the error message reported the current primitive name
1112 * Luatex would crash on non-existant pdfs that were referenced
1113 from map file entries.
1115 ==============================================================
1116 Luatex beta-0.46.0 was released 20091126
1117 ==============================================================
1121 * The build.sh script now has better support for new MacOSX-es
1124 * Luatex now has experimental support for dynamic loading of
1125 external compiled lua libraries. Building luatex and loading
1126 external .so/.dll files is reported to work on Windows,
1127 linux and osx, other platforms are still unknown.
1129 * pdf.obj{type="stream"} no longer converts its argument to and
1130 from a tokenlist. This allows the use of binary data in the
1131 "string" argument. Such data does still have to hidden from
1132 the normal file parser by putting the code in a dofile()
1133 or by using string.char(), though.
1137 * Luatex 0.45.0 was not able to find truetype nor opentype fonts
1138 if there were no callbacks defined (patch from Pawel).
1140 * 0.45.0 printed the user input instead of the full pathname
1141 for \input-ed tex files.
1143 * The TFM reader now rejects fonts with tfm names that are
1144 longer than 255 characters because such font names cannot
1145 be stored in a DVI file.
1147 * The combination of \immediate\pdfxform followed by a later
1148 \pdfrefxform could cause broken pdf output files because
1149 the box used for the form could have been freed and even
1150 reused already at that moment in time, sometimes resulting
1151 in an invalid transformation matrix.
1153 * The placement of super- and subscripts for displaystyle
1154 \int's in CambriaMath is now better than before. It still
1155 needs a tweak to the metrics though: in the current version,
1156 the italic correction has to be substracted from the width
1157 of the integral sign to get correct placement (context mkiv
1158 does this). to be continued ...
1160 ==============================================================
1161 Luatex beta-0.45.0 was released 20091118
1162 ==============================================================
1166 * Loading big OTF fonts via lua is now much faster than before,
1167 at the expense of a bit of precision loss in the calculated
1170 * Two new token lists are provided: \pdfxformresources and
1171 \pdfxformattr, as an alternative to \pdfxform keywords.
1173 * \input and \openin now accept braced filenames.
1175 * The \endlinechar can now be set to any value between 0 and 127.
1177 * Luatex can now optionally use kpathsea to find lua require()
1180 * The new primitives \aligntab and \alignmark are aliases for
1181 the use of & and # in alignments.
1183 * \pdfrefximage [width <dimen>] [height <dimen>] [depth <dimen>] <imageref>
1184 overrules settings from \pdfximage for this \pdfrefximage call only
1186 * The print precision for small numbers in lua code (tostring)
1189 * Akira Kakuto suppled a patch that restricts writing to files
1190 with names such as latex.bat etc. (on windows only)
1192 * (un-feature): from now on luatex now only handles 4 direction
1193 specifiers: TLT (latin), TRT (arabic), RTT (cjk), and LTL
1194 (mongolian). The other directions now generate an error.
1196 * (un-feature): xpdf's automatic lower- and uppercasing retry attempts
1197 for nonfound image pdf files has been removed.
1199 * The callbacks hpack_filter, vpack_filter and pre_output_filter
1200 pass on an extra string argument for the direction, when known
1201 (nil == use default).
1203 * The lua functions node.hpack(), node.vpack() and node.dimensions()
1204 now accept an optional direction argument (not given == use default).
1206 * \pdfrefxform [width <dimen>] [height <dimen>] [depth <dimen>] <formref>
1207 scales a form object; similar principle as with \pdfximage: depth alone
1208 doesn't scale, it shifts vertically.
1210 * A change to the relative ordering inside font name discovery for use
1211 by the backend: now it tries <f>.psname first, as that is much less
1212 likely to contain spaces.
1214 * For ttc fonts, now the used subfont name and its index id are printed
1215 to the terminal, and if the backend cannot find a ttc subfont, the
1220 * Prevent crashes for lua-loaded fonts without a (tfm) name.
1222 * Remove spurious newlines in the output pdf that could be the
1223 result of using \pdfximage for an included pdf figure too early.
1225 * Full font embedding for wide otf and ttf fonts now really
1226 works (older versions only pretended that it did work).
1228 * node.dimensions() sometimes continued past the 'stop' node.
1230 * Images inside virtual fonts were broken.
1232 * The processing of \language=-1 was wrong, resulting in
1233 hyphenation attempts even though there was no proper language
1236 * Fix for finding files in --output-directory.
1238 * Fix for handling of --file-line-error.
1240 * tex.box[] assingments are now checked to make sure the assigned
1241 node has the right id (hlist or vlist).
1243 * show_node_list (as in \showbox) produced spurious local_par
1244 whatsit prints in the output after direction nodes.
1246 * The handling of pdf literals has been sped up.
1248 ==============================================================
1249 Luatex beta-0.44.0 was released 20091027
1250 ==============================================================
1254 * libpng is now 1.2.40.
1256 * hlist nodes now have a subtype to distinguish hlists generated
1257 by the paragraph breaking, explicit \hbox commands, and other
1258 (as-yet-undefined) sources.
1260 * \pdfobj now has an extra optional keyword: 'uncompressed',
1261 which forces the object to be written to the PDF in plain
1262 text (see the manual for the exact details).
1264 * The lua file from the luamd5 library (which provides the
1265 md5.hexsuma() function) is now embedded in the executable.
1269 * \latelua now works in DVI mode again.
1271 * status.output_file_name could crash when used too soon.
1273 * In 0.43, rules were not output at all in DVI mode.
1275 * \leavevmode\penalty-10000\penalty-10000 crashed luatex.
1277 * the API of margin kern nodes to lua was using the wrong
1278 fields in the nodes.
1280 * A few fixes to the manual.
1282 * PDF Xref stream dicts were slightly non-conformant.
1284 * There was too much space between two consecutive math displays
1285 (this bug was inherited from Aleph)
1287 * Synctex was broken (thanks, Akira)
1289 * Font mark classes were handled incorrectly by the fontloader
1292 * There was a crash possible with certain types of named PDF
1295 * Math delimiters and large operators in new MATH fonts no
1296 longer apply the italic correction (this fixes placements
1297 of super- and subscripts on such items for those fonts).
1299 * The converter from lua strings to token lists (for the node
1300 interface) sometimes generated invalid tokens.
1302 * CFF (OpenType) fonts now listen to 'embedding="full"'. TTF
1305 * Font tables with 'embedding="no"' would cause luatex to crash.
1307 * \pdfobj file {} failed to find the file if there was no lua
1310 * An optimization in MS Mincho caused luatex to crash.
1312 ==============================================================
1313 Luatex beta-0.43.0 was released 20090819
1314 ==============================================================
1318 * There is a new allowed key in the table trhat is returned
1319 by lua-loaded fonts: <f>.psname. This value should be set
1320 to the original PostScript font name of the font. Fonts inside
1321 dfont and ttc collections are fetched using this field
1322 (if it is missing, <f>.fullname will be used instead).
1324 * It is now possible to use Apple dfont font files
1325 (those that contain at least one outline font).
1327 * \latelua is now allowed inside leaders.
1329 * There is a new callback: process_output_buffer, from Manuel
1330 Pégourié-Gonnard. This callback is called just before
1331 \write acts, so it can be used to alter the file encoding
1332 of text output files.
1334 * There is a new node.dimensions() function, which calculates
1335 the natural size of (part of) a list of nodes.
1337 * The new primitive \gleaders provides 'globally aligned'
1340 * The DVI and PDF backends now share much code internally.
1342 * The embedded MPlib is now 1.207.
1344 * libpng is now 1.2.39.
1348 * We fixed lots of anonymous bugs introduced in 0.42.0 (as expected)
1350 * fontloader.info() errors are no longer fatal, the function now
1351 just returns a nil,"error string" pair.
1353 * Automatically inserted kerns for \accents are now once again
1354 valid word ends, as in \TEX.
1356 * Fixed the placement of math displays in mixed direction
1359 * The \pdfcompresslevel is now dynamic again.
1361 ==============================================================
1362 Luatex beta-0.42.0 was released 20090717
1363 ==============================================================
1365 * There is a new node.tail() function
1367 * lua-loaded fonts now support a 'nomath' key to speed up
1368 loading the lua table.
1370 * A bugfix in the ttf reader for the inclusion backend, and
1371 (also in the backend) support for treating ttc files by
1372 pretending they are single ttf fonts (both patches from pdftex)
1374 * Add Khaled Hosny's man page to the repository
1376 * The \pdfcompresslevel is now effectively fixed as soon as
1377 output to the pdf file has occurred.
1379 * Patched status.filename so that it (nearly) always returns a
1382 * fix '\the\delcode' and disable '\the\odelcode', '\the\Udelcode',
1383 and '\the\Udelcodenum'
1385 * Handle jfifs where either xres or yres is 0 and the other
1386 res is != 0 (from pdftex)
1388 * The single-argument version of lang.hyphenate() was broken.
1390 * Get rid of the \directlua/\latelua number warning.
1392 * The Lua coroutine patch (coco) is now disabled on linux
1393 powerpc architectures (because it caused crashes)
1395 * Removed obsolete pdftex primitives:
1396 \pdfoptionalwaysusepdfpagebox
1397 \pdfoptionpdfinclusionerrorlevel
1401 * The loading speed of large fonts (especially ttf) via the
1402 fontloader library, and the inclusion speed for subsetting
1403 in the backend have both been improved.
1405 * The 'pdf' lua library has been enhanced with various new
1406 functions, see the manual for details.
1408 * BLT and BRT glyph position fixed.
1410 * Various fixes for synctex offsets.
1412 * Support for exotic font string encodings has been removed
1413 from the fontloader library.
1415 * The embedded MPlib is now 1.205.
1417 * libpng is now 1.2.38.
1419 ==============================================================
1420 Luatex beta-0.40.6 was released 20090625
1421 ==============================================================
1423 * Fix two string vs. toks bugs in the lua node interface:
1424 whatsit,annot and whatsit,startlink data assignments were
1425 made directly as strings instead of being converted to tokens.
1427 * Sometimes pdf.print() could be used before the proper structures
1430 * There was a bug in the type codes for the lua package filter
1431 callback: wrong extra info was passed to lua for the alignment
1434 * The math parameters \Umathlimitdownvgap, \Umathlimitdownbgap,
1435 and \Umathlimitdownkern have been renamed to \Umathlimitbelowbgap,
1436 \Umathlimitbelowvgap, and \Umathlimitbelowkern to be more
1437 consistent with the other parameter names.
1439 * The embedded MPlib is now 1.204.
1441 * Handling of UTF-8 hyphenation exceptions has been fixed.
1443 * There were a number of typos in the manual.
1445 ==============================================================
1446 Luatex beta-0.40.5 was released 20090610
1447 ==============================================================
1449 * One of the internal print functions accidentally encoded its
1450 argument string to UTF-8 even though it was already UTF-8.
1452 * Some of the log and terminal UTF-8 output was gibberish.
1454 ==============================================================
1455 Luatex beta-0.40.4 was released 20090609
1456 ==============================================================
1458 * \the\textfont0 returned a number instead of doing a font
1461 * The embedded MPlib is now 1.203.
1463 ==============================================================
1464 Luatex beta-0.40.3 was released 20090608
1465 ==============================================================
1467 * A set of portability fixes for the AIX compiler from Vladimir
1470 * A set of fixes to the synctex support.
1472 * A patch to the build script to prevent installed X11 headers
1473 from being required.
1475 * Some weave (web syntax) fixes from Manuel Pégourié-Gonnard.
1477 * A simplification in luatex.ch (it is now less verbose
1478 about the web2c-specific extensions) from Karl Berry.
1480 * A fix in the handling of UTF-8 (input) file names.
1482 * Hyphenation exceptions were case sensitive in 0.40.2.
1484 * libpng is now 1.2.37.
1486 ==============================================================
1487 Luatex beta-0.40.2 was released 20090603
1488 ==============================================================
1490 * Fix for a compilation warning under Cygwin.
1492 * A complicated bugfix by Hartmut for a rounding problem in the
1493 VF loading that resulted in 'character width mismatch in font
1494 XY.vf ignored' messages at large load sizes
1496 * The embedded MPlib is now 1.202.
1498 * The post_page_number callback was accidentally run when
1499 shipping out xforms as well as during actual pages.
1501 * When a math accent char doesn't have a bot_accent placer,
1502 luatex now uses the top_accent placer, if present.
1504 * A crash caused by \Uroot .. {<list>}{...} is fixed
1506 * A portability fix for solaris 8 sparc using sun studio
1507 compiler, and one for glibc > 2.9.90
1509 * luatex -ini now sets the \catcode of the BOM character to
1512 * Kpathsea is updated from TeXLive, giving four extra types of
1513 searchable files: 'font feature files','cid maps','mlbib',
1516 * libpng is now 1.2.36
1518 ==============================================================
1519 Luatex beta-0.40.1 was released 20090508
1520 ==============================================================
1522 * Vertical placement of root radicals and degrees is fixed.
1524 * The use of \pageleftoffset could deviate from \hoffset
1527 * LuaTeX now issues a warning if \pagedir !- \bodydir during
1530 * The previous crash in font.read_tfm() was still not quite
1533 * The Web2C version is now also printed in the --version
1534 and --credits output.
1537 * There is a new MPlib 1.200 release candidate with a few minor
1540 * The xpdf library is updated to patch level 3.
1542 * New imports to the build system, from texlive. In particular,
1543 there is now configure-level support for building with
1544 libpoppler and support for building under cygwin 1.7 is added.
1546 ==============================================================
1547 Luatex beta-0.40.0 was released 20090422
1548 ==============================================================
1550 * The embedded MPlib is updated to version 1.200.
1552 * Texlua would crash if run font.read_tfm() was used.
1554 * Luatex would crash on empty \patterns.
1556 * Lots of small C code cleanups.
1558 * \textdir inside a \hbox dir *** was wrong earlier.
1560 * 0.39.0 introduced a bug that would make luatex crash whenever
1561 font expansion was used.
1563 * Font tables returned by define_font can now have a key named
1564 'cache' that controls the internal lua font table caching.
1566 * There is no longer a need for an explicit --progname if there
1567 is no input file given.
1569 ==============================================================
1570 Luatex beta-0.39.0 was released 20090415
1571 ==============================================================
1573 * iniluatex will from now on start up with only the TeX82 primitives
1574 and \directlua, everything else has to be bootstrapped via
1575 tex.enableprimitives(). This change was planned for 0.40.0,
1576 but *now* is the time to test it.
1578 * A bugfix for \primitive in various expandable contexts,
1579 and \primitive now generates an error message when the
1580 argument is not actually a primitive's name.
1582 * There was a bug found in the math accent handling.
1584 * Large math operators are now treated like extensible characters
1585 in the sense that they can be composed of segments.
1587 * The extra assign- and restore tracing information from eTeX
1588 had a massive bug because of a dangling else in the pascal web.
1589 As a side-effect of fixing this bugs, all such potential errors
1590 in the pascal web have been fixed (for now).
1592 * The math parameters can now be set and queried from lua code
1593 via the new tex.setmath() and tex.getmath() functions.
1595 * Reflection in a \hbox was broken.
1597 * There was a leak of direction nodes in the paragraph builder.
1599 * The font backend now does a small peek to differentiate
1600 truetype and postscript style opentype fonts. This fixes
1601 the "Can't find CFF table" bug for otf's with truetype outlines.
1603 * Parameters and registers can now also be assinged to globally
1604 from lua (see the manual for details).
1606 * It is now possible to query the current math style while a
1607 formula is still being constructed by using the new read-only
1608 value \mathstyle. Associated is the new command \Ustack that
1609 is to be used as a prefix for {.. \over ..} and friends.
1610 See the manual for more information.
1612 * The embedded MPLib is brought up to date with the current
1613 metapost repository (version 1.110 and a few small patches).
1615 * Luatex can now handle two breakpoints inside a single ligature
1616 (like for the functional word of-f-ice). The solution is not
1617 perfect yet, but the chance of missed hyphenation points in
1618 actual documents should now be negligible.
1620 * Some speedups in the font loading code, and in the handling of
1621 pdf_literal nodes that are set from within Lua code.
1623 * Some source code and manual cleanup, as usual.
1625 ==============================================================
1626 Luatex beta-0.38.0 was released 20090410
1627 ==============================================================
1629 * tex.enableprimitives() had a bug were previously defined (but
1630 currently undefined) control sequences prevented the creation
1633 * The special calling format callback.register('name', false)
1634 not only disables the callback, but also the builtin code it
1635 is supposed to replace.
1637 * Empty \localleftbox and \localrightbox -es are now suppressed.
1639 * Support for <f>.MathConstants.SubscriptShiftDownWithSuperscript
1640 was added, to solve the lack of "sub2" in OpenType math.
1642 * Luatex now supports horizontal super- and subscript placement
1643 corrections via the OpenType MATH mathkern table. See the
1646 * node.write() no longer copies its argument node list before
1649 * There are six new primitives that are verbose forms
1650 of one and two byte special tokens:
1651 \Usuperscript \Usubscript
1652 \Ustartmath \Ustopmath
1653 \Ustartdisplaymath \Ustopdisplaymath
1655 * The attribute node leaks in math mode and alignmetns have been
1658 * The 11 simple math noads are now combined into a single "noad"
1661 * Static linking against libstdc++ is working once again.
1663 * There is a small fix in the keyword scanner to solve the
1664 problem of 'Runaway ... while scanning ???' that could happen
1665 for some primitives.
1667 * Lua now also has the "architecture independent bytecode"
1670 * Lua is updated to version 5.1.4 with coco patches 1.1.5, and
1673 * Some TRT/TLT backend bugs are fixed.
1675 * Various manual updates.
1677 ==============================================================
1678 Luatex beta-0.37.0 was released 20090331
1679 ==============================================================
1681 * Luatex now implements shell_escape = 'p', a new feature
1682 in web2c that intends to make \write18 more secure. As
1683 a side-effect, if luatex is used for typesetting, it will
1684 now also apply shell_escape = 'p' and shell_escape = 'f'
1685 to the lua functions io.popen(), os.execute(), os.exec(),
1687 Nothing has changed for the case where luatex is used as
1688 a script interpreter.
1690 * Attributes can now have negative values. The special value
1691 for 'unset' is lowered to -0x7FFFFFFF (it used to be -1).
1693 * The lua 'kpse' library now has an object-oriented interface
1694 as companion to the procedural interface. This is useful for
1695 e.g. controlling the discovery of mplib files.
1697 * The new internal integer parameter \outputbox allows setting
1698 of the output box number (default: 255, max: 65535)
1700 * The new primitives \Udelimiterunder and \Udelimiterover
1701 complete the set of 'StretchStacks' for OpenType Math.
1703 * Fixed a bug in font string conversions on the Macintosh that
1704 resulted in warnings about 'unaligned pointers being freed'.
1706 * Khaled Hosny spotted a bunch of manual errors.
1708 * There was bug in the width of math_accent objects when
1709 there were super- or subscripts attached to the accentee.
1711 * In PDF mode, TRT \leaders were bugged.
1713 * The source tree now uses the new texlive build system that
1714 Peter Breitenlohner created.
1716 * There is now a single build.sh instead of four separate
1717 ones. It has a few options:
1718 --make : only make, no make distclean; configure
1719 --parallel : make -j 2 -l 3.0
1720 --nostrip : do not strip binary
1721 --mingw : crosscompile for mingw32 from i386-linux
1722 --ppc : crosscompile for ppc osx on intel osx
1724 Note: --parallel still sometimes causes crashes due to
1725 timing errors, so use that option with care.
1727 * Many compiler warnings have been removed (but not all yet).
1729 ==============================================================
1730 Luatex beta-0.36.0 was released 20090323
1731 ==============================================================
1733 * The included fontforge code is stripped considerably, and
1734 the lua table to access the code is renamed to 'fontloader'.
1735 The old name ('fontforge') will remain present for a while,
1736 but will eventually go away.
1738 * New lua functions: tex.primitives(), tex.extraprimitives,
1739 tex.enableprimitives(). This is a prelude to a big change
1740 in the next beta: iniluatex will from now on start up with
1741 only the TeX82 primitives and \directlua, everything else
1742 has to be bootstrapped via tex.enableprimitives().
1743 See the manual for more details.
1745 * Support for multiple lua states has been removed, and at the
1746 same time support for adding name ids to lua chunks has been
1747 added. See the manual for more details.
1749 * More changes to the PDF backend to make it support non-latin
1750 directions (form and image placement, vertical typesetting,
1753 * The kpathsea library is updated. Highlights: cleaner build
1754 process (thanks to Peter Breitenlohner), cleaner mingw32
1755 (cross)compilation support, and a new reentrant API.
1757 * Some possible endless loops within extended delimiters in
1758 math mode are now trapped.
1760 * Movements inside VF font characters were considerably off
1761 due to a wrong conversion routine.
1763 * Error handling for \outer has been reinstated, but can be
1764 suppressed via the new primitive \suppressoutererror.
1766 * The new primitives: \suppresslongerror and \suppressifcsnameerror
1767 that can be used to suppress errors for \par in non-long macros
1768 and for non-expandable objects inside \ifcsname ... \endcsname,
1771 * New lua function: node.vpack() via a patch from Khaled Hosny
1772 that also improves error handling in node.hpack().
1774 * Fix the typo that caused \charic (instead of \charit)
1775 to be defined as a primitive.
1777 * Suppression of hyphenation via \hyphenchar\font=-1 now works
1780 * The lua functions tex.print(), tex.sprint(), tex.write() now
1781 accept an array of strings as well as vararg list of strings
1784 * A change to be build process: luatex.p is no longer split
1785 int smaller pieces before running the C compiler.
1787 * Melissa O'Neill contributed a bugfix to the Type1 font
1790 * A bunch of smaller bugfixes and cleanups (as usual).
1792 ==============================================================
1793 Luatex beta-0.35.0 was released 20090224
1794 ==============================================================
1796 * The math handling portions of LuaTeX are converted to C code,
1797 and extended to support Unicode math. There are a great many
1798 related changes, see the new Math chapter in the manual for
1801 * A nasty bug in the paragraph breaking routine was fixed.
1802 (All lines except the first one were believed to be wider then
1803 they really were. This affected which nodes were considered
1804 as active breakpoints)
1806 * Various changes to the PDF backend to make it support non-latin
1809 * Fixed the behaviour of the page offsets. Placement of the output
1810 on the physical page should now work correctly in all directions,
1811 both in DVI and PDF.
1812 There now are \pageleftoffset and \pagetopoffset primitives,
1815 * fontforge.apply_featurefile() was broken since 0.31.0
1817 * The lua profiler library is added.
1819 * The included lua filesystem library is now 1.4.1.
1821 * Reading of pk files fixed.
1823 * An optional space afer a <direction specifier> for \textdir c.s.
1824 is ignored from now on.
1826 * \bodydir and \pagedir can now be (re)set even after the first
1827 page has been output.
1829 * The new callback mlist_to_hlist can be used to intercept the
1830 normal conversion of math lists to horizontal lists.
1832 * The programs ttf2afm and pdftosrc are removed from the luatex
1833 distribution (these belong to pdftex).
1835 * fontforge.open() now uses much less memory when opening large
1838 * The included libpng is now 1.2.35.
1840 * Quite a lot of smaller bugfixes and cleanups (as usual).
1843 ==============================================================
1844 Luatex beta-0.31.3 was released 20081229
1845 ==============================================================
1847 This release has a bunch of updates from the development trunk
1848 (#1657-1670,1677,1678,1680,1685,1687).
1850 * Closing of files opened by \externalocp.
1852 * Fix for a locale-related bug that make PDF generation fail
1853 with a "Parsing CFF Dict failed" message when including
1856 * The included metapost is now version 1.102.
1858 * PDF rules in vertical modes in RL direction where output
1859 in the wrong direction
1861 * Fix for a crash on Apple fonts that contain a 'bsln' table.
1863 * The handling of the second argument to fontforge.open() was
1866 * The included libpng is now 1.2.34
1868 * Handling of ttc files on Windows was broken
1871 ==============================================================
1872 Luatex beta-0.31.2 was released 20081209
1873 ==============================================================
1875 Besides fixing building issues, this release has
1877 * A small fix for a crash that could happen when using
1880 * A fix in the format of fontforge.to_table output.
1881 (In 0.31.1 <font>.lookups was near-empty; the lookups
1882 were accidentally output as part of the gpos table).
1884 ==============================================================
1885 Luatex beta-0.31.1 was released 20081209
1886 ==============================================================
1888 fixed a bunch of compilation errors on various platforms, but
1889 with no other visible changes.
1892 ==============================================================
1893 Luatex beta-0.31.0 was released 20081205
1894 ==============================================================
1896 This is just an intermediate release so that some testing can be
1897 done on the updated fontforge embedding.
1899 * There are new fields being generated by fontforge.to_table(),
1900 and one or two old ones have been removed. These fields are /
1901 will be documented in the manual, but very briefly:
1903 - MATH table and associated information are now exported
1904 (the main reason for the new fontforge code)
1905 - Baseline data is now exported
1906 (perhaps usable in lua code)
1907 - Multiple Master / Glyph variation data is now exported
1908 (but useless, for now)
1909 - Mac Feature (AAT) information is now exported
1910 (perhaps usable in lua code)
1911 - If (lookup) names were saved via the PfED table, these
1912 will the exported instead of the default, generated names.
1913 (as requested by Yannis)
1915 * dfont is now treated as an archive format just like ttc
1916 when it comes to fontforge.info(). NOTE: that does not mean you
1917 can actually use them, because the backend doesn't know
1918 yet how to embed dfont fonts in the PDF, that is on the
1919 TODO list for the next big beta (0.40.0).
1921 * The executables are a lot larger than before. That is because
1922 much more of fontforge is included than before. Likely this
1923 will stay this way, because this makes upgrading the ff code
1924 much easier, and it means that luatex/FF potentially
1925 understands more font formats (after upgrading the backend,
1929 ==============================================================
1930 Luatex beta-0.30.3 was released 20081128
1931 ==============================================================
1933 This release fixes a really big bug, a few smaller ones,
1934 and has updates of png and mplib:
1936 * All hyphenation patterns that were anchored at the start or
1937 end of a word were ignored in luatex versions 0.25.X and 0.30.X
1938 (and possibly even earlier).
1940 * Repeated use of \language=-1 could result in "There is not room
1941 for another language".
1943 * The lua true coroutines patch (Coco) is now disabled on OpenBSD
1944 running on non-intel platforms.
1946 * The lua socket library is patched so that it will now compile on
1949 * Luatex now has libpng 1.2.33 and mplib 1.100
1951 ==============================================================
1952 Luatex beta-0.30.2 was released 20081020
1953 ==============================================================
1955 * The Lua coco change from 0.30.1 is reverted as it gave
1956 trouble on MacOSX. Lua coco on non-intel OpenBSD platforms
1957 is now explicitly turned off.
1959 * The lua file reading speedup in 0.30.1 broke reading of
1960 files larger than 100MB.
1962 * Reading of font-related files was broken when there was a find
1963 callback, but no read callback.
1965 * The texmf.cnf array size setup values were ignored whenever
1966 --lua was given on the commandline (instead of only when
1967 texconfig.kpse_init is set to false).
1969 * glyphs with negative widths resulted in incorrect horizontal
1970 placement (overlapping) of the string in the output PDF.
1972 * Using \latelua could sometimes result in an invalid output PDF,
1973 and the argument token list was expanded too early
1975 * There was a read buffer overrun in the mapfile parser
1977 * There are two new variables in the status table:
1978 status.callbacks and status.indirect_callbacks (execution counts).
1980 ==============================================================
1981 Luatex beta-0.30.1 was released 20081009
1982 ==============================================================
1984 * Invalid return values from the linebreak_filter callback
1985 are now handled gracefully (was crashing)
1986 * a preinstalled ctangle is no longer needed except when
1988 * In 0.30.0, the .notdef fix was incorrectly applied to
1989 truetype / opentype fonts.
1990 * A bunch of all memory leaks is fixed
1991 * In lua, f:read('*a') now uses signicantly less memory
1992 * The number of \catcodetables is now limited to 64KB
1994 * Luatex could crash if there were PDF images with and
1995 without page /Group included on the same page
1996 * Lua coco now always uses setjmp (for OpenBSD compatibility)
1997 * The embedded mplib is updated to the latest svn version
1998 * # marks (characters with catcode 6) are no longer doubled
2000 * Handling the nul character (U+0000) with catcode 13
2002 * Luatex could crash on win32 with an access violation
2003 because there was one predefined language too few
2004 (the one matching \language=-1)
2006 ==============================================================
2007 Luatex beta-0.30.0 was released 20080930
2008 ==============================================================
2012 * Readable \tex internal params that are counts, attrs, or dimens are
2013 now returned as numbers instead of strings, and skips as node objects.
2014 Read-write access to tex's skip registers added: tex.skip[0] etc.
2015 * new callback: 'linebreak_callback' to replace the internal paragraph
2017 * the tex table now supports more readable 'convert' values:
2018 tex.fontname, tex.pdffontname, tex.pdffontobjnum, tex.pdffontsize,
2019 tex.uniformdeviate, tex.number, tex.romannumeral, tex.pdfpageref,
2020 tex.pdfxformname (each takes a number as argument)
2021 * new readable parameter: tex.fontidentifier(number) returns the
2022 \csname associated with that font id
2023 * luatex now outputs \FONT<nr> instead of \^^@ in Overfull/Underfull
2024 messages if the font's id text is zero (like for expanded fonts) (#77)
2025 * luatex --version is split into --version and --credits
2026 * There is now (again) an svn revision number in luatex --version (#91)
2027 * Add support for more read-only internal access from lua:
2028 tex.lastpenalty, tex.lastkern, tex.lastskip, tex.lastnodetype,
2029 tex.inputlineno, tex.badness, tex.pdftexversion, tex.pdflastobj,
2030 tex.pdflastxform, tex.pdflastximage, tex.pdflastximagepages,
2031 tex.pdflastannot, tex.pdflastxpos, tex.pdflastypos, tex.pdfrandomseed,
2032 tex.pdflastlink, tex.luatexversion, tex.Alephversion,
2033 tex.Omegaversion, tex.Alephminorversion, tex.Omegaminorversion,
2034 tex.eTeXminorversion, tex.eTeXversion, tex.currentgrouplevel,
2035 tex.currentgrouptype, tex.currentiflevel, tex.currentiftype,
2036 tex.currentifbranch, tex.pdflastximagecolordepth (#81)
2037 * the old --src-specials are replaced by --synctex (#63)
2038 * the \expanded primitive is backported from pdftex 1.50 (#43)
2039 * luatex now comes with libpng 1.2.32
2040 * experimental: tex.definefont(string, number) associates a
2041 csname string with a font id number
2043 Bugs fixed compared to 0.29.0:
2045 * dashes were exported wrongly by MPlib
2046 * multi-item \discretionaries were broken in various ways (#78, mailinglist)
2047 * read_font_info was sometimes called recursively from lua-loaded
2049 * do_vf was sometimes called on lua-loaded fonts that where
2050 already known to be virtual
2051 * trailing junk in tfm files is now ignored (needed for ecrm fonts)
2052 * pdf_ignored_dimen was initialized too late, breaking \prevdepth
2053 handling and causing output lines to overlap eachother (#72)
2054 * pdf.immediateobj() had a printf-related bug
2055 * the fontname terminal logging is fixed for strange font file names
2056 * lua tex array assignments now listen to the globaldefs setting
2057 (tex.count[0] etc) (#92,partial)
2058 * \parshape was broken (#70)
2059 * there is no longer a ".tex" extension forced on very input file (#74)
2060 * eof() for mapfiles was true one byte too soon (#76)
2061 * out of range \lefthyphenmin and \righthyphenmin settings now actually
2062 disable hyphenation (#90)
2063 * tex.unset_attribute() looked too far ahead when a to-be-unset
2064 attribute id not only did not exist in the node, but was also
2065 higher than the highest set attribute on the node. (#65)
2066 * the parameters attr and page_name of read_image() were swapped
2067 (this broke \pdfimage with attributes)
2068 * tex filenames with spaces in them on the command line are now
2070 * sometimes pfb fonts were included multiple times without valid
2072 * some parts of the pdftex 1.40.9 PNG transparancy hack were still
2073 present and caused transparant png handling to fail
2074 * \localinterlinepenalty and \localbrokenpenalty were broken
2075 * special case catcode tables are now handled better (#23)
2076 * the handling of missing .notdef charstrings in old pfb fonts
2079 ==============================================================
2080 Luatex beta-0.29.0 was released 20080718
2081 ==============================================================
2086 * The embedded pdftex is now 1.40.9 (forthcoming) except for the
2088 - the png transparancy fix is skipped because it is in conflict
2089 with a macro-based solution offered by context mkiv.
2090 - LFS (PDF files > 2GiB) is not working yet.
2091 - Synctex is still missing
2093 * libpng, xpdf, and zlib are updated to their pdftex 1.0.9 levels
2095 * MPlib is updated to 1.090
2097 * The syntax of buildpage_filter is changed to avoid confusion
2098 (and crashes). See the manual for the new calling convention.
2100 Bugs fixed compared to 0.28.0:
2102 * The previous bugfix for \languages skipping numbers was wrong.
2104 * Various compile-time warnings are suppressed
2106 * \pdfsetmatrix was broken
2108 * \pdfsave and \pdfrestore were broken
2110 * Valid user_defined whatsits nevertheless were generating errors.
2113 ==============================================================
2114 Luatex beta-0.28.0 was released 20080630
2115 ==============================================================
2117 There is one new feature:
2119 There is now experimental support for non-trivial discretionaries
2120 following explicit hyphens. In analogy to \prehyphenchar and
2121 \posthyphenchar, there are two new parameters \preexhyphenchar en
2122 \postexhyphenchar. Both new parameters default to zero (nothing).
2123 When set to a nonzero value, the parameter is added to either the
2124 pre- or post- break text. Note that this is *in addition to* the
2125 hyphen already in the input. Testing and comments are very welcome.
2127 Here is a short example (no idea what is says):
2131 \postexhyphenchar=`-
2133 pudesse t\^e-lo mantido como amigo, mas por
2134 mais bem-intencionado que eu fosse, n\~ao
2140 Bugs fixed compared to 0.27.0:
2142 * Words that started off with a character with a zero \lccode
2143 were never hyphenated at all.
2145 * There was a bug in the new active characters code that prevented
2146 the latex format from being built (with Invalid character error).
2148 * There is a temporary fix for the sometimes appearing "Font has a
2149 bad FontBB" message from Acrobat.
2151 * \leaders did not actually stretch enough (the last bit of glue
2152 that has to line up the line endings was never output to the PDF).
2154 * Bad paragraph-related callbacks could result in luatex crashing.
2156 * The pre_linebreak and post_linebreak filters were never called
2157 when \output was active (this was a leftover of a superceded
2160 * 'skipping' language codes when setting up \patterns c.s. did not
2161 work (it used the next empty slot instead of the actual value of
2164 * Using multiple 'attr' keywords on box items could cause random
2167 * Calling lang.hyphenate() with one argument (without specifying a
2168 tail node) could crash.
2170 * The luatex pdf banner and version reporting is cleaned up a bit.
2172 * Conflicting patterns inside \patterns now give an error:
2173 ! Conflicting pattern ignored.
2174 (duplicate identical patterns are ignored without error).
2176 ==============================================================
2177 Luatex beta-0.27.0 was released 20080624
2178 ==============================================================
2180 Bugs fixed compared to 0.25.3:
2182 * Unicode reencoding support for non-standard (i.e. older)
2183 Type1 fonts is now somewhat less broken than it was (#25)
2185 * .vf fonts using specials crashed luatex
2187 * luatex would crash on --\par (#33)
2189 * An attempt is made to get a sane default value for StemV in
2190 the created pdf (#32)
2192 * We can now guarantee that %PDF-1.* header is printed before
2193 the first pdf.print() output
2195 * lang.hyphenate() was broken
2197 * insert_before(a,a,b) was broken (#37)
2199 * argv[0] is now cleaned up before being used as a default for
2200 mem_name and prog_name (#28).
2202 * luatex would crash on loading extended fonts (fonts loaded
2203 via lua callbacks) from a format file.
2205 * The fix for pdftex bug #799 is backported from pdftex 1.40.4.
2207 * slnunicode had a bug in the unicode.utf8.gmatch iterator.
2209 * Queries of nonexisting fontdimens could cause a crash.
2211 * luatex would crash on {\textdir TLT\pardir TLT x\break\par }
2213 * Fixed wrong placement of lines in mixed-direction paragraphs
2214 that could happen in some situations.
2217 * Luatex now includes luasocket (#35)
2218 See http://www.tecgraf.puc-rio.br/~diego/professional/luasocket/
2220 There is a new commandline option: --nosocket to disable this,
2221 and that is also implied by --safer.
2223 NOTE to the binary builders: there are some unfixed configure
2224 problems when you need to add a specific library to get socket
2225 support on your platform. You probably will have to edit the
2226 generated Makefile by hand (search for 'socketlib').
2228 * There is ongoing development to the 'img' and 'mplib' libraries.
2229 See the reference manual for details.
2231 * The 'character commands' in virtual fonts now support image
2232 inclusion. See the reference manual for details.
2234 * Lua error messages now include the call stack.
2236 * \directlua and \latelua have been extended to accept a 'name'
2237 keyword. The argument is a token list that is used as the lua
2238 name of this chunk in lua error messages and call stack prints.
2241 * The lua chunk names can be interfaced via a new virtual
2242 table called lua.instancename, the values in that function as
2243 defaults in the absence of 'name' keywords.
2245 * The 2-plane limit on active character range is removed (#12).
2247 * Subsetted TTF fonts in the PDF now retain the cmap table.
2249 * There is a new Lua variable os.selfdir. This contains the
2250 full absolute pathname of the directory that the executable
2251 resides in (with symlinks resolved)
2253 * There is a new function os.uname() this returns a lua
2254 table containing various platform information items.
2256 * The node library now uses text strings for direction specifiers
2257 instead of numbers. See the reference manual for details.
2259 * The 'E' (edit) as error response functionality is now a noop.
2261 * Adding luatex 0.25.3 to texlive resulted in a few minor backports,
2262 in particular: Support for mktexfmt is added, and luatangle now
2263 identifies itself as such (instead of calling itself otangle).
2265 * We fixed a whole series of portability problems (but
2266 we probably introduced new problems as well).
2268 * Most (all?) files now have a corrected Copyright header,
2269 and link in $Id$ and $URL$ into the object file.
2271 * Some unnecessary files were removed from the distribution.
2273 ==============================================================
2274 Luatex beta-0.25.3 was released 20080418
2275 ==============================================================
2278 * Pdftex bug no. 936 (sarovar) regarding vertical
2279 positioning of embedded PDF files if depth parameter is given.
2280 * Luatex gave bogus lua return values for the tex.wd/hd/dp
2281 values of void boxes
2282 * A few bugfixes in mplib (square pens caused hangs, elliptical
2283 pens caused confused output)
2284 * Hyphenation of uppercase words (\uchyph) was broken
2285 * Output image placements corrected for all 8 transform cases
2286 also when artbox etc. is used
2287 * There were missing maketexstring() calls in error messages
2288 * Math display contents were sometimes prematurely freed during
2289 the placement of the equation number
2290 * Setting \language=-1 could cause crashes due to an array
2291 index going out-of-bounds
2294 * build.sh.ppc is added to the source distribution. This is a
2295 script that crosscompiles osx ppc binaries from osx intel
2296 * tex.box[<chardef name>] is now supported (but still experimental)
2297 * a bunch of compiler warnings are removed
2298 * The fontforge library now dump AAT feature tags as and
2300 * The new function font.nextid() predicts the next assigned font id
2301 * Some source code changes are backported from texlive
2303 ==============================================================
2304 Luatex beta-0.25.2 was released 20080410
2305 ==============================================================
2307 * Updated to MPlib 0.40
2308 * Bugfixes and cleanup in the lua img table code
2309 * Fix \pdflastximagepages bug from pdftex
2310 * Fix for very large tex.print strings
2311 * Update to Lpeg 0.8.1
2312 * &D Bugfix for Type1 fonts when out-of-range characters
2313 are marked as 'used'
2315 ==============================================================
2316 Luatex beta-0.25.1 was released 20080321
2317 ==============================================================
2319 * Updated to MPlib 0.30 (that is now becoming usable)
2320 * The build requirement for a pre-installed ctangle is gone
2323 ==============================================================
2324 Luatex beta-0.25.0 was released 20080311
2325 ==============================================================
2330 This version features an embedded MP interpreter whose output
2331 can be directly accessed from lua code (mplib), without calls
2332 to an external "mpost" command. Of course it has bugs and
2333 limitations (makempx does not work, for example) but keep in
2334 mind that it is only an initial attempt.
2335 See the manual for more details.
2337 ** img.immediatewrite() is added
2338 ** images now accept a 'transform' key
2339 ** widths etc. can now be given as width="100mm"
2343 * \parshape handling was completely broken since 0.20.0+
2344 * when \pdfprotrudechars was in effect, an assertion failure
2345 could happen when embedded \hboxes in the paragraph appeared
2346 at the end of a line.
2347 * import of otf fonts with contextual lookups has been debugged,
2348 thanks to a patch by GW himself.
2349 * compiling with gcc 4.2.3 is now supported
2350 * if you want to build from source, you need a pre-installed ctangle.
2353 ==============================================================
2354 Luatex beta-0.22.1 was released 20080227
2355 ==============================================================
2357 * The macnames.c source file for building ttf2afm is restored.
2358 * "make depend" in luatexdir now works again
2359 * luatex sometimes crashed because it attempted to expand an
2360 already expanded font
2361 * luatex aborted when --progname was given but no format name.
2362 It now sets the format name to the given progname in that case
2363 * sometimes paragraphs with near-empty lines could cause a crash
2364 * img.supportedtypes() had a bug causing it to crash
2365 * img.supportedtypes() has been renamed to img.types for consistency
2366 * img.boxes() added, returns strings representing bounding boxes
2367 * img.node() added, returns a whatsit node cf. \pdfrefximage
2368 * node.write() now accepts multiple arguments
2369 * the program_name_set switch was not set automatically from C,
2370 causing errors unless lua code called kpse.set_program_name()
2372 * kpse.set_program_name() can now be called more than once
2374 * os.spawn{...} and os.exec{...} could cause crashes because of
2375 a memory allocation error
2377 ==============================================================
2378 Luatex beta-0.22.0 was released 20080215
2379 ==============================================================
2381 * We now have an official bug tracker: http://tracker.luatex.org
2382 * A new lua library (img) is added that allows a direct
2383 interface to the image handling of luatex. You can use this
2384 to include images from lua code instead of via the more
2385 traditional \pdfximage cs. See the manual.
2386 * An optional equal sign after \{pre,post}hyphenchar is now
2388 * os.exec() has been extended, and os.spawn() added. These
2389 functions have support for quoted strings, and they
2390 also accept a table with preseparated command arguments.
2391 * New string constants os.type and os.name are provided.
2392 * node.last_node() is added. This pops and returns the last
2393 node from luatex's 'current list'
2394 * node.write() is added. This appends a node to the end of
2395 luatex's 'current list' (experimental).
2396 * The strict check on unicode compliance in pattern files
2397 is dropped. Patterns files still have to be in proper UTF-8
2398 encoding, but the error for non-Unicode character values
2399 (like 0 - 31 and 127 - 159) is dropped.
2400 * \pdfadjustinterwordglue, \prependkern, \appendkern
2401 and associated \XXXXcode arrays are gone.
2402 * The rest of the pdftex font arrays are now merged into
2403 the new luatex font data structure. This means that you
2404 can now set up font expansion from lua code, and that a few
2405 font-related limits are gone.
2406 * The 'top_skip' field in 'insert' nodes is renamed to 'spec',
2407 for improved consistency.
2408 * kpse.show_path() added. This behaves just like
2409 $ kpsewhich --show-path
2410 * The unicode.utf8 functions now also accept values in the range
2411 1.114.112 - 1.114.367 that is used by LUATEX for raw byte output.
2415 * Better node memory (de)allocation error tracking and messages
2416 * Compilation on MacOSX 10.5 was broken
2417 * There was a bug in node.insert_after
2418 * Use of \{pre,post}hyphenchar was broken
2419 * lfs.permissions was leaking memory
2420 * Some warning and error messages are improved a bit
2421 * A set of bugs in character protrusion, this seems to be working
2423 * Also, a set of bugs in font expansion. This now works in most
2424 cases but is not quite bugfree yet (problematic files for testing
2426 * The functions in the kpse library would crash luatex if
2427 kpse.set_program_name() was not yet called. gives an error now.
2428 * Alignments with spanned columns could cause crashes
2429 * A patch is added for problems with filename parsing on the
2430 "first input line" (by Jonathan Kew)
2431 * The hpack_filter and vpack_filter were only called for lists longer
2433 * Luatex is now more forgiving about font subsets being smaller
2434 than their expected size (issues a warning instead of aborts now)
2435 * A "double-free ignored" error for paragraphs with lines starting
2436 with discarded items was fixed.
2438 ==============================================================
2439 Luatex beta-0.20.2 was released 20071217
2440 ==============================================================
2442 * some portability fixes to the build scripts
2443 * a fix for multi-\span in alignments causing unbreakable
2445 * manual improvements from Jonathan Sauer
2446 * fix for undefined csnames in \directlua if
2447 web2c's hash_extra is nonzero
2448 * fix for LR text inside of a RL document
2449 * fix for open_read_file callback not being called
2450 unless find_read_file was also registered
2451 * removed the ocp status message when \ocps are not
2453 * "unicodeenc" in the fontforge to_table renamed to
2454 "unicode" for improved consistency
2456 ==============================================================
2457 Luatex beta-0.20.1 was released 20071207
2458 ==============================================================
2460 * texlua was broken on Solaris because the some C header
2461 files were loaded in the wrong order.
2462 * os.tmpdir() now accepts an argument, making it easier
2463 to use. It now generates more unique filenames when
2464 it is called repeatedly in one run.
2465 * The --luaconly commandline switch is now documented
2467 * The new extended hyphenation exceptions were severely
2469 * \pdfprotrudechars could cause luatex to abort with an
2471 * There was a bug in the \span code that could cause endless
2473 * The simple forms of \leaders were messed up on windows
2474 because a variable was not properly initialized.
2475 * Non-grouped \textdir commands created invalid output.
2476 * e-TeX's pseudo files were not closed properly in ini mode.
2477 * The luatex.web now weaves properly again.
2478 * I made some small improvements to the manual.
2480 ==============================================================
2481 Luatex beta-0.20.0 was released 20071205
2482 ==============================================================
2484 News compared to the last beta (0.11.2) is as follows:
2486 * Completely overhauled hyphenation and ligkern application,
2487 including the addition of a new "lang" table in lua to
2488 interface to the language parameters, some extra functions
2489 in the "node" table, and a few extra callbacks ("hyphenate",
2490 "ligaturing", "kerning", "post_linebreak_filter").
2492 There is a new chapter in the manual to document all the
2493 changes to the hyphenation and line breaking algorithms,
2494 it is simply too much to list here.
2496 * the interface of the pre_linebreak_filter,hpack_filter,
2497 vpack_filter, and pre_output_filter has changed slightly.
2499 * boxes can now get explicit attributes different from the
2500 currently active set, using a syntax like
2502 \hbox attr2=12 attr3=-1 to 12pt {Hi!}
2504 * lpeg is now at version 0.7
2506 * a whole series of exotic bugs and compiler warnings are
2507 fixed, mostly thanks to the watchful eye of Fabrice.
2509 * texio.print now accepts multiple strings as arguments.
2511 * the lua functions os.sleep(), os.times(), os.gettimeofday()
2512 and os.tmpdir() have been added.
2514 * lua now comes with the coroutine (coco) patches from the
2515 luajit project applied.
2517 * the banner line no longer claims to be TeX.
2519 * a bunch of bugs reported on the mailing list have been
2520 fixed (I hope all of them).
2522 * (internal) we found lots of small ways to speed up lua
2525 * (internal) the node (de)allocation functions have been
2526 rewritten, so that absolutely all nodes now have a type,
2527 even the ones with variable sizes.
2530 ==============================================================
2531 Luatex snapshot-20071029 was released 20071029
2532 ==============================================================
2534 * Completely overhauled hyphenation and ligkern application.
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 * lpeg is now at version 0.7
2545 * a whole series of exotic bugs and compiler warnings are
2546 fixed thanks to the watchful eye of Fabrice.
2548 * texio.print now accepts multiple strings as arguments.
2550 * The lua function os.sleep() is added
2552 ==============================================================
2553 Luatex beta-0.11.2 was released 20070918
2554 ==============================================================
2556 * Pdf inclusion and subsetting of CID-based opentype fonts
2557 now works as it should.
2559 ==============================================================
2560 Luatex beta-0.11.1 was released 20070918
2561 ==============================================================
2563 A quick list of what is new and fixed since beta 0.10.2:
2566 * pfb+afm fonts can now be used in 'wide' (encodingbytes=2) mode
2567 * searching in PDFS using 'wide' fonts now works reasonably well
2568 (based on the tounicode feature)
2569 * related to that, tounicode information can now be passed
2570 on inside the font metrics table
2571 * font subsetting is now supported for CID-based OpenType fonts
2572 (however, there is a known bug with KpozMinProVI-Regular.otf)
2573 * fontforge's warning and error messages are now intercepted
2574 and passed on to the lua code as a second return value of
2575 the fontforge.open() function
2576 * the new primitive \suppressfontnotfounderror can suppress
2577 the TeX error for "Font not found"
2578 * The lua function font.current can now be used to set TeX's
2582 * set_attribute(-1) is now the same as unset_attribute()
2583 * OpenType lookups with glyph classes would crash luatex
2584 * luazlib would not compile on debian (fix from Norbert)
2585 * CID-based fonts would crash luatex
2586 * Bare CFF should be read in binary mode (fix from Akira)
2587 * VF processing did not process packets containing zero bytes properly
2588 * the truetype collection (.ttc) handling is fixed, so that all
2589 of the fonts inside a collection can now be used reliably
2590 * application segfaults and stack overflows are intercepted
2591 so that luatex can quit a bit more gracefully
2592 * an assertion failuer on systems with signed chars (linux-powerpc)
2594 * a crash on AMD64 linux was fixed
2595 * the lua "pdf" table code was wrong
2596 * \ifcsname did not work properly for UTF-8 characters
2597 * Use of the math-related functions using make_fraction (like \atop)
2599 * \handling of \if\noexpand was wrong
2600 * applied a patch that cleans up XForm and page calculations
2601 * "autoconf" support from zziplib is stripped
2603 ==============================================================
2604 Luatex beta-0.10.2 was released 20070814
2605 ==============================================================
2609 * the primitive \span was completely broken
2610 * \pdfexpandfont (font expansion) misbehaved if it was used more
2612 * virtual fonts: sometimes they used the wrong internal font id,
2613 loading vf fonts via fonts.read_vf() was impossible, and sometimes
2614 virtual fonts created segfaults
2615 * while dumping formats, the last font parameter for each font was not
2617 * zziplib was always compiled with pre-installed zlib headers, instead
2618 of the ones in the build tree
2619 * lua 5.1.2 has trouble quoting ^Z characters etc, the tentative patch
2620 for lua 5.2 from Luiz fixes that, hopefully
2621 * fontforge.font('font.pfb') now properly parses AFM boundingboxes
2622 * non-existing files in the argument for fontforge.open() or
2623 fontforge.info() could cause segfaults, now it generates an error
2625 * fontforge.open() did not return character widths for vertical fonts
2627 * on Windows, fontforge believed that ttc files (TrueType Collections)
2628 were actually directories. ttc processing is still not 100% correct,
2629 but it is getting better
2630 * the build system used explicit 'make' sometimes
2631 * the auto-growing string pool was not used everywhere
2632 * there were some typos in the documentation parts of the pascal web
2633 * use of \parshape could easily exhaust all available memory
2638 * support for applying Adobe Feature files (.fea) and Adobe Font
2639 Metrics (.afm) is added to the fontforge library
2640 * fontforge.info() will now return an array of tables for the contents
2642 * support for a 'texluac' personality was added, to replace the 'luac'
2643 command from the official Lua distribution
2645 ==============================================================
2646 Luatex beta-0.10.1 was released 20070719
2647 ==============================================================
2649 This was a hotfix because beta-0.10.0 was completely broken.
2651 ==============================================================
2652 Luatex beta-0.10.0 was released 20070718
2653 ==============================================================
2655 The latest version of the manual is included in the package, and I
2656 am not going to repeat all of that. There were some minor changes
2657 compared to the previous snapshot, but mostly just bugfixes and
2658 documentation improvements.
2660 ==============================================================
2661 Luatex snapshot-20070626 was released 20070626
2662 ==============================================================
2664 * Integrated the lua library lzlib, this defines tables with
2665 bindings for zlib (including eazy-to-use gzip support)
2666 * Updated to slnunicode version 1.1
2667 * Some small cleanups in the sparse array handling
2668 * Moved the raw byte support out of the valid unicode range
2669 * Fixed a bug in the OFM font reader
2670 * Removed the pdftex snap nodes (and associated primitives)
2673 ==============================================================
2674 Luatex snapshot-20070622 was released 20070622
2675 ==============================================================
2677 Not a lot of news, but it fixes a few important bugs in the lua
2678 node processing. Also a few utility functions are added:
2681 rounds and bounds checks a lua number to make sure it is
2682 a valid tex integer.
2684 multiplies a number (or the numeric values in a table)
2685 with a fixed quantity, and calls tex.round() on the result.
2687 Test if a node has a specified field name
2689 removes a node from a nodelist, while keeping the list intact
2690 * node.insert_before()
2691 inserts a new node into a nodelist, just before a specified
2693 * node.insert_before()
2694 inserts a new node into a nodelist, just after a specified
2697 packages a nodelist into a hlist node
2700 ==============================================================
2701 Luatex snapshot-20070619 was released 20070619
2702 ==============================================================
2704 * The lua node processing interface is completely reworked.
2705 It is now completely based on userdata, and uses a new lua table
2706 called 'node' to hold the methods. More detailed information
2707 is in the manual (of course).
2709 * There is a fifth node processing callback:
2711 this is executed just before the packaging of \box 255.
2713 * The hpack_filter and pre_linebreak_filter callbacks now
2714 receive an extra argument indicating the number of top-level
2715 glyphs in the node list.
2717 * Virtual fonts can now contain a 'node' key in the glyph
2718 commands: the value should be a hlist node (i.e.: a horizontal
2719 box), and that will then be output for each character access
2722 * A new set of registers is added, called \attribute. These are
2723 values that will be automatically attached to nodes created in
2724 their scope. More information in the manual.
2726 * Direct read/write access to TeX's box registers is addded to
2727 the lua 'tex' table.
2729 * TeX's main memory now grows dynamically, and the (de)allocation
2730 routines have been rewritten completely.
2732 * The 'kpse' table is extended with extra interface functions, to
2733 allow texlua to be used as a scripting engine.
2735 * The \pdftexversion command now returns 200, not 140.
2737 * The displayed banner and --version screens are cleaned up.
2739 * The format file is now RLE compressed. Not as small as before,
2740 but unpacking is much faster.
2743 ==============================================================
2744 Luatex snapshot-20070426 was released 20070426
2745 ==============================================================
2747 This past month I have been busy with nodes and lists of nodes,
2748 so the big new feature in this release is that there are four
2749 callbacks that operate on node lists:
2752 pre_linebreak_filter
2756 The preliminary documentation for these is in the manual, but the basic
2757 idea is that you can filter a node list just before LuaTeX starts doing
2758 something with it (like line breaking). This functionality is not stable
2759 yet: the node presentation of the various node types is pretty much OK
2760 now, but keep in mind the following:
2762 * math noads and math typesetting are not handled at all (yet)
2763 * not all hpacks and vpacks are intercepted (yet)
2764 * the nested node list handling will probably change
2765 * A conversion tool for nodes to/from dictionaries is planned,
2768 The other changes in this snapshot are various bugfixes (for builds
2769 on various platforms as well as font issues) and speedups (in the
2770 execution of callbacks and the creation of lua font representations).
2773 ==============================================================
2774 Luatex snapshot-20070322 was released 20070322
2775 ==============================================================
2777 * I have changed the token_filter callback quite rigorously,
2778 mostly because of speed issues. The raw speed of trivial
2779 lua token handling is now only about 20 times slower than
2780 the native handling. Not bad at all, considering it has to move
2781 between interpreted and compiled code for each and every
2782 token. If you do not run the token filter inside \output,
2783 the effective run speed difference should not be much more
2786 Two big differences: you have to call token.get_next()
2787 yourself, and the token table is now a three-item array
2788 instead of a five-key hash. The minimal example changes to
2791 callback.register('token_filter', function ()
2792 return token.get_next()
2796 more details are in the manual.
2798 * I've fixed a few bugs in the handling of Opentype TTF, and added
2799 a new key in the font definition table:
2801 f.encodingbytes = (1|2)
2803 The default is 2 for opentype and truetype format, 1 otherwise.
2804 Later on, it will become possible to have a type1 font in 2-byte
2805 (CID) encoding or a truetype font in traditional encoding (1-byte),
2806 but I have not covered all cases yet.
2810 ==============================================================
2811 Luatex snapshot-20070309 was released 20070309
2812 ==============================================================
2814 * The OCP debug information is removed again.
2816 * There is a new callback that I am quite excited about myself:
2820 A bit of text from the reference manual:
2821 --------------------
2822 This callback allows you to change the modify any lexical token that
2823 enters the \type{main_control} function before \LUATEX\ executes the
2826 Note: not all tokens can be intercepted yet, only those that are `seen'
2827 by \LUATEX's main control function. Supplemental tokens like the bodies
2828 of macro definitions and the right-hand side of register assignments
2829 are not seen. For now, this is intentional.
2832 function (table <token>)
2833 return table <token>
2837 Calling convention for this callback is bit more complicated then for
2838 most other callbacks. Initially, lua function will be called with the
2839 next token from \type{get_next()} as argument, represented as a small
2840 lua table. The function should either return a lua table representing
2841 a valid to-be-processed token, or something else like nil or an empty
2844 If your lua function does not return a table representing a valid
2845 token, it will be immediately called again with yet another token
2846 from \type{get_next()} as argument, until it eventually does return
2849 But if the function does return a usable token, then that token will
2850 be processed by \LUATEX. Afterwards, the function will be called
2851 again, but now without an argument. This is repeated until it stops
2852 returning tokens. Then processing reverts back to the other branch.
2854 The point behind that roundabout calling convention is that it
2855 allows the lua function to buffer tokens for various uses. That in
2856 turn makes it possible to do some really advanced things like
2859 Now about that table. The table that the function will receive
2860 contains four fields:
2862 \starttabulate[|l|i|p|]
2863 \NC Key \NC type \NC Explanation \NC\FR
2864 \NC cmd \NC string \NC A representation of \LUATEX's internal
2866 \NC chr \NC number \NC The command code modifier\NC\NR
2867 \NC cs \NC string \NC If the token came from a csname, this
2868 is that csname\NC\NR
2869 \NC mod \NC character \NC A single character string representing
2870 the current processing mode. One of {\bf v}ertical, {\bf h}orizontal,
2871 display {\bf m}ath, {\bf n}o, internal {\bf V}ertical,
2872 restricted {\bf H}orizontal, or inline {\bf M}ath mode.\NC\LR
2875 If you modify the table before returning it, then it is wise to return
2876 either a (\type{cmd}, \type{chr}) pair, or a \type{cs} string. That is
2877 because if both options are present, the pair has precedence and the
2878 string is ignored. On the return table, {\bf mod} is ignored always.
2881 I have no long example code yet and it is not as complete as one
2882 would want it to be because it is not intercepting everything that
2883 comes in, only the bits that are triggered by the main control
2886 I decided to do a fast snapshot release for two reasons:
2888 * It is one of the easier extensions to get started with if you want
2889 to learn a bit about lua programming
2891 * I would welcome feedback on the token interface, because it will
2892 be needed in other places as well, soon. I am still not sure
2893 whether converting the command to/from strings is worth it, for
2894 example. And maybe it would be less confusing if you could return
2895 a list of tokens instead of being called repeatedly?
2897 Here is the trivial example to get you started:
2900 callback.register('token_filter', function (t) return t end)
2904 ==============================================================
2905 Luatex snapshot-20070307 was released 20070307
2906 ==============================================================
2909 * Non-CID PostScript-based Opentype fonts are now combined over
2910 the entire document, and properly subsetted. The code is
2911 borrowed from xdvipdfmx with some minor adjustments
2913 Adding support for CID-keyed OpenType fonts would not be hard
2914 but at the moment I lack example input (and incentive).
2916 * A small extension to the virtual fonts structure: you can use
2918 f.fonts[1] = { 'id' = 38}
2920 to do a backreference to a previously defined font. This saves quite
2923 * There was a bug in the handling of \leaders in the output whereby
2924 it's width was taken to be twice what it should be while writing
2925 to the PDF, fixed now.
2927 * The font inclusion code is cleaned up a bit by Hartmut.
2929 * Some compilation problems were fixed.
2931 * There is (quite a bit of) debugging information printed out when
2932 OTPs are in use, because I am tracking down a bug reported by Idris.
2934 The input of each and every OTP step is shown on the terminal in
2937 [57902][1568][58423][1568][58408][1568][58921]
2939 those are the decimal values of ocp i/o characters. If you don't
2940 need them, don't worry about it.
2942 ==============================================================
2943 Luatex snapshot-20070302 was released 20070302
2944 ==============================================================
2946 * The 'snapshot version' banner is now calculated dynamically
2947 at build time. This aids in figuring out what binary people
2948 are actually running, but it can possibly break the build on
2949 systems that do not have a `date` command.
2951 * The do_vf() function that checks for virtual font existance
2952 is now run immediately after the font definition instead of
2953 being postponed until characters are output.
2955 * The 'define_font' callback interface has changed a little.
2957 retval = function (name,size,fontid)
2959 where fontid is the internal font number of the font that
2960 is currently being defined, and retval can be either a table
2961 (as before) or a different, previously defined fontid. This is
2962 useful if a previous definition can be reused instead of
2963 creating a whole new font structure.
2965 * The internal font data structure has been redone. Glyph index
2966 inside a font is now handled by a sparse array, so that use
2967 of e.g. 0xFB01 (fi-ligature) no longer creates a 64000+ entries
2970 * The internal cache-ing of font metric information is turned
2971 off completely, because it was based on the assumption that
2972 name + size were a unique identifier for a font. This can no
2973 longer be guaranteed.
2975 * word boundary processing now works OK again, thanks to the
2976 introduction of two virtual characters in the font table
2977 definition. Besides the normal numeric entries in the
2978 f.characters table, there can now also be two string keys:
2979 "left_boundary" and "right_boundary". The ligatures and kerns
2980 of the 'left_boundary' character are used for the pre-word
2981 boundary processing, ligatures and kerns between characters
2982 and 'right_boundary' are used for the post-word processing.
2984 * Lua font table references are no longer cached by the
2985 executable ,in order to preserve memory. (the only downside
2986 is that font.fonts[] access is now slower because of the need
2987 to recreate the lua table).
2989 * There are other some small changes to the font table formats.
2990 Please see the manual for details.
2992 * A 'real' font can now still have virtual characters if they
2993 are loaded via lua. Just set the 'commands' section and/or
2994 the 'fonts' array to your liking, and it should work out.
2996 If you have created no 'fonts' array at all, then the default
2997 font (indentifier '1') is the current font, so that you
2998 can create virtual duplicates of already existing characters.
3000 Note: this does not work the other way. There can not be
3001 'real' characters in a virtual font!
3003 * Truetype-based opentype fonts no longer require Acrobat 7
3004 t(hey are now written out as if they are normal truetype).
3006 * A lua init script can now set 'texconfig.formatname' and/or
3007 'texconfig.jobname'. If ther is no file or format specified
3008 on the commandline, then, if, one of those keys is present,
3009 that key will be used instead of simply quitting with an
3012 * Placement of boxes and rules in right-to-left mode is debugged,
3013 and now seems to work ok.
3015 * Virtual font loading is debugged.
3017 * Some memory leaks are resolved
3019 * HZ font expansion should work ok again, but is not tested.
3021 * a few of the warning during opentype loading have been removed
3022 because the problems are rather harmless and turned out to be
3023 triggered by almost every font.
3026 ==============================================================
3027 Luatex snapshot-20070218 was released 20070218
3028 ==============================================================
3030 * The pdftex stuff is now updated to 1.40.3
3031 (and on top of that, it still has those extra patches announced in
3034 * The virtual font parser is debugged and now appears rather stable.
3036 * There is one extra virtual command:
3039 {"slot", 1, 97}, -- place character 97 'a' in local font 1.
3042 This is just a shortcut for {"font",1}, {"char", 97}
3044 * Some small memory leaks have been fixed. Luatex does not leak big
3045 time, but I'd like to get back to valgrind reporting '0 out of 0',
3046 instead of the current 800 bytes or so (that is a slow process).
3048 * You can read a truetype or opentype font from within lua code
3049 using font.read_ttf() or font.read_otf(), respectively.
3051 This feature uses a fair bit of the fontforge code, making the
3052 binary rather a bit larger than before. Just so you know.
3054 Apple (AAT, as well as encoding) support is still largely missing,
3055 and bitmap-only and old Multiple-Master truetype fonts are not
3056 supported at all (and never will be).
3058 The output format is (shadily) documented in the reference manual.
3059 At the moment, it very closely resembles the internal font stucture
3060 that is used by fontforge.
3062 * LuaTeX can now write wide OpenType fonts to the PDF file.
3064 There is no subsetting support yet, and a ToUnicode CMap is also
3065 still missing, but nevertheless it is already somewhat useful. The
3066 rule is very simple: if a font uses code points above 255, then it
3067 is considered to be a `wide' font, and it will be written out as
3068 a Type0 CID-keyed font to the PDF.
3070 Caveat: Getting suitable metrics into LuaTeX can be a bit of problem
3071 right now, because font.read_otf() does not produce anything that
3072 can be fed back into define_font without extra processing. Hans has
3073 some experimental Lua code for ConTeXt (of course :-)) and that is
3074 how I know it works. You can expect a nicer interface soon,
3075 hopefully next week, in the form of a simplistic table conversion
3078 * I have started work on supporting Aleph's bidi typesetting in PDF
3079 mode as well, simple text seems to be largely ok. More complicated
3080 documents will no doubt still show some bugs, but fixing those will
3081 be easy (once they are discovered). Exactly what happens with specials
3082 is not yet investigated.
3084 * Omega's (16-bit) wide virtual fonts now work OK in PDF mode. This
3085 means that many Aleph files can now be run in PDF mode directly.
3086 (the documents that use UTF-8 input encoding)
3089 ==============================================================
3090 Luatex snapshot-20070202 was released 20070202
3091 ==============================================================
3094 * The pdftex stuff is now updated to 1.40.2, and on top of that, it has
3096 - an extra patch from Han The Thanh that adds a primitive to control
3097 the merging of fonts from external pdf images (\pdfreplacefonts),
3098 and a bugfix for virtual font handling.
3100 - an extra patch by Hartmut Henkel that removes a number of malloc()s
3101 and free()s from the calls to the compression library, thereby
3102 making luatex run a bit faster.
3104 * luatex now happily accepts the following low-level syntax:
3106 \font\myfont = <general text> <at specifier>
3108 It feeds the <general text> to either kpathsea or a lua script for
3109 further processing after stripping the braces.
3111 In itself, this is not all that useful, but the reason for this
3112 syntax extension is that it paves the road for a macro package
3113 to do something like this:
3115 \font\myfont = {font="Times New Roman", color="\darkred",
3116 encoding="ec", features="liga", size=10bp}
3118 without having to resort to system-specific quoting mechanisms.
3119 Macro (and other) expansion takes inside the braced argument.
3121 (I am considering adding this extension to \input as well).
3123 * It is now possible to define a font into the font.fonts[]
3124 directly from lua, but becayse use is limited, I am only
3125 mentioning it to be complete.
3128 <number> id = font.define(<table> font)
3130 * There is a (not very reliable yet) virtual font parser accessible
3134 <table> vfdata = font.read_vf(<string> name, <number> size)
3136 The interpreter tries to give a reasonable representation of a
3137 virtual font file (the .vf file). Besides a few simple top-level
3140 designsize -- in scaled points
3142 name -- the file name
3143 checksum -- the vf checksum
3144 header -- the header comment (if any)
3146 it also has a top-level array 'fonts' wherein each item is a mini-
3147 array describing one of te mapped fonts. An example makes this
3150 "fonts" = { {"ptmr8a",655360}, {"psyr", 600000} }
3152 says that the first referenced font (index 1) in this virtual font
3153 is ptrmr8a.tfm loaded at 10pt, and the second is psyr.tfm loaded
3154 at a little over 9pt. These index numbers are used by the character
3155 command definitions that follow.
3157 At top level, there is a 'characters' array, just as for a normal
3158 font, except that each item has only two keys:
3160 "width" -- the tfm width (as stored in the .vf)
3161 "commands" -- an array of virtual font commands for a character.
3163 each of the items in the 'commands' array is itself a tiny hash.
3165 Each of those mini-hashes represents a single character packet
3166 command. Here is a 'commands' entry that contains every possible
3170 {"push"}, -- remember where we are
3171 {"right", 5000}, -- move right 0.08pt
3172 {"font", 1}, -- select the fonts[1] entry
3173 {"setchar", 97}, -- place character 97 'a'
3174 {"pop"}, -- go all the way back
3175 {"down", -200000}, -- move *up* about 3pt
3176 {"special", "pdf: 1 0 0 rg"} -- switch to red color
3177 {"rule", 500000, 20000} -- draw a bar
3178 {'special',"pdf: 0 g"} -- back to black
3182 * But the big news is that you can now define your own virtual fonts
3183 on the fly, by adding a few statements to the table returned to
3184 the 'define_font' callback.
3186 There are a few requirements:
3188 - The table has to have a top-level key 'type', and it's value
3191 The presence of this key with the specific value 'virtual'
3192 will trigger handling of the rest of the special virtual font
3193 fields in the table, but the mere existance of 'type' is
3194 enough to prevent luatex from looking for a virtual font
3197 Therefore, this also works 'in reverse': if you are absolutely
3198 certain that a font is not a virtual font, assigning the value
3199 'base' or 'real' to 'type' will inhibit tex from looking for a
3200 virtual font file, thereby saving you a disk search.
3202 - There must be a top-level 'fonts' array, as explained above.
3203 Any fonts that are not yet known to luatex at that moment,
3204 will be loaded automatically (Warning: do not ever use a font
3205 in 'fonts' with the same name you will return in the table you
3206 are defining right now!).
3208 - Each and every character in the fonts needs to have a 'commands'
3209 key, as explained above.
3211 The main point behind these restrictions is that a font is
3212 *either* a base font *or* a virtual font. It cannot be both
3216 ==============================================================
3217 Luatex snapshot-20070126 was released 20070126
3218 ==============================================================
3221 * Underscores in pascal identifiers are now retained.
3223 This took quite a bit of work. The web2c conversion tools
3224 needed only small adjustments, but most of the existing C
3225 code depended on the removal of the underscores. I had to
3226 go through changing many lines. 99% of all identifiers are
3227 now written the same on the pascal side as on the C side.
3228 This makes writing interface code quite a bit less confusing.
3230 Not everything is completely clean yet, because I did
3231 not want to change the web2c-specific C files. I often
3232 took the other approach and removed the underscores
3233 from the web2c options (like 'parsefirstlinep') in the
3234 change file instead. Ugly, but predictable.
3236 There is about a dozen or so of #defines left, that map
3237 memoryword -> memory_word
3241 * The virtual font parsing and interpreting is now done in C.
3242 (this is because it needs to be interfaced with the lua-based
3245 * I am in the process of merging: the VF stuff; the TFM stuff;
3246 the lua font loading; and the pdftex font backend into one
3247 interface, so there were some smallish changes relating to
3248 that as well. Nothing worth mentioning just yet except that
3249 luatex now will read "ovf" files as well as "vf" files.
3251 * There are a few really small bugfixes for bug reports I received
3252 on this list and by email.
3254 ==============================================================
3255 Luatex snapshot-20070119 was released 20070119
3256 ==============================================================
3258 The largest new bit is the existence of a font.fonts array, that you
3259 can use to query/adjust the internal defined tex fonts. See the manual
3262 Two small new lua extensions are added as well:
3264 * os.setenv() -- to change the environment
3265 * os.exec() -- a non-returning os.execute()
3267 And a bit of cleanup in the commandline processing.
3270 ==============================================================
3271 Luatex snapshot-20070117 was released 20070117
3272 ==============================================================
3274 * the pdftex core is updated to 1.40.1, and web2c to 7.5.6
3276 * the pdftex-specific documentation is removed
3278 * lua lpeg library updated to 0.4
3279 ( http://www.inf.puc-rio.br/~roberto/lpeg.html )
3281 * the C part of the lua md5 library is added to the binary
3282 ( http://www.inf.puc-rio.br/~roberto/md5/md5-5/md5.html )
3284 * --luaonly now puts the script itself at arg[0], and
3285 preceding commandline items in the negative indices
3286 (instead of starting the count at zero).
3287 This new approach is compatible with the standalone lua
3291 ==============================================================
3292 Luatex snapshot-20070107 was released 20070107
3293 ==============================================================
3295 Hot on the heels of 20070105, a new snapshot. It turns out
3296 that using the callback to define a font broke all ligatures.
3297 This snapshot fixes that, and it has a few minor updates to
3298 the manual. Next shapshot will be after the inclusion of
3301 ==============================================================
3302 Luatex snapshot-20070105 was released 20070105
3303 ==============================================================
3305 * the calculations that converted lua strings into tex units
3306 were horrendously wrong, this was discovered by Pawel.
3308 * io.lines() was still using the old, line ending sensitive,
3309 code from the lua core distribution
3311 * The main font memory is allocated as needed^(1) instead of
3312 statically pre-allocated.
3314 * ligatures and kerns are separated completely from each other,
3315 so use of \noligatures no longer inhibits kerning as well
3317 * Metrics can be loaded using a callback: 'define_font'.
3318 The value returned should be a lua table representing a tfm
3321 * there is a new lua table: font. It has one function:
3322 font.read_tfm() that returns a table reprentation of the tfm
3323 contents, for use with the above mentioned callback
3325 * I dropped suppport for "Level 1" OFM files. I would like
3326 to have a try at those extended font files, but I lack
3327 examples (fonts nor documents). I am not even sure such
3328 fonts have ever existed in the 'real world'.
3332 ==============================================================
3333 Luatex snapshot-20061208 was released 20061208
3334 ==============================================================
3336 * There is a new switch: --safer. This disables a number of lua
3337 functions that are more or less dangerous (a detailed list is
3340 * Two longstanding bugs have been fixed: \latelua works once
3341 again (patch by Hartmut) and a bug that caused mysterious crashes
3342 turned out to be a problem inside the paragraph builder
3343 (reconstitution of ligatures)
3345 * Six new string iterators have been added to the string library:
3346 string.characters (one 1-letter string)
3347 string.bytes (one byte)
3348 string.characterpairs (two 1-letter strings)
3349 string.bytepairs (two bytes)
3350 string.utfcharacters (a one-character utf-8 string)
3351 string.utfvalues (a unicode code point number)
3353 * The top 256 values of the unicode range (starting at hex
3354 value "10FF00) are now reserved for byte output. Characters
3355 in that range will be written by luatex after substracting
3356 that offset. The net result is that \char"10FFA9 is written
3357 as byte value hex A9 = decimal 169 = copyright sign in latin1
3359 This trick allows byte-oriented output to \pdfliterals and
3360 \specials, but should be considered very experimental.
3362 * There is a new callback called 'process_input_buffer' that can
3363 be used to mutate the line buffer just before LuaTeX actually
3364 starts looking at it.
3366 * The statistics table now has readable items
3368 statistics.lasterrorstring
3369 that represent TeX's current input id and the last error string
3371 * The show_error_hook callback no longer receives any arguments
3372 * There is a new switch: --safer. This disables a number of lua
3373 functions that are more or less dangerous (a detailed list is
3376 * Two longstanding bugs have been fixed: \latelua works once
3377 again (patch by Hartmut) and a bug that caused mysterious crashes
3378 turned out to be a problem inside the paragraph builder
3379 (reconstitution of ligatures)
3381 * Six new string iterators have been added to the string library:
3382 string.characters (one 1-letter string)
3383 string.bytes (one byte)
3384 string.characterpairs (two 1-letter strings)
3385 string.bytepairs (two bytes)
3386 string.utfcharacters (a one-character utf-8 string)
3387 string.utfvalues (a unicode code point number)
3389 * The top 256 values of the unicode range (starting at hex
3390 value "10FF00) are now reserved for byte output. Characters
3391 in that range will be written by luatex after substracting
3392 that offset. The net result is that \char"10FFA9 is written
3393 as byte value hex A9 = decimal 169 = copyright sign in latin1
3395 This trick allows byte-oriented output to \pdfliterals and
3396 \specials, but should be considered very experimental.
3398 * There is a new callback called 'process_input_buffer' that can
3399 be used to mutate the line buffer just before LuaTeX actually
3400 starts looking at it.
3402 * The statistics table now has readable items
3404 statistics.lasterrorstring
3405 that represent TeX's current input id and the last error string
3407 * The show_error_hook callback no longer receives any arguments
3409 * The statistics table now has readable items
3410 statistics.luabytecodes
3411 statistics.luastates
3412 statistics.luabytecode_bytes
3413 statistics.luastate_bytes
3414 for memory statistics reporting
3417 * The statistics table now has readable items
3418 statistics.luabytecodes
3419 statistics.luastates
3420 statistics.luabytecode_bytes
3421 statistics.luastate_bytes
3422 for memory statistics reporting
3425 ==============================================================
3426 Luatex snapshot-20061204 was released 20061204
3427 ==============================================================
3429 * The LuaTeX interpreter can now be run as a standalone lua script
3430 processor, by using a commandline like this:
3432 luatex --luaonly=luatools.lua
3434 * Luafilesystem (http://www.keplerproject.org/luafilesystem/ ) is
3437 * There are a total of eight new file discovery callbacks:
3446 this enhances the orthogonality of the callback system, nothing
3447 fundamental is changed.
3449 * There is a new callback called 'process_input_buffer' that can
3450 be used to mutate the line buffer just before LuaTeX actually
3451 starts looking at it.
3453 * The 'reader' and 'close' functions from 'open_read_file' now
3454 receive the table they are defined in as a function argument,
3455 that can be used as a per file localized data store.
3457 * Updated the Lua to the latest 5.1.1, with all known bug patches
3458 from the website applied as well
3460 * Runtime autoloading of lua .so files is now off on all platforms.
3462 * The statistics table now has readable items
3464 statistics.linenumber
3465 that represent TeX's current file name and line number
3467 * The support for user-defined type3 font .pgc files and the
3468 associated 'read_miscfonts_file' callback has been removed.
3469 (nobody used it anyway)
3471 * General cleanups to the source tree and build process.
3473 ==============================================================
3474 Luatex snapshot-20061023 was released 20061023
3475 ==============================================================
3477 * there was a missing callback: find_font_file
3478 * program_invocation_name was not set
3479 * buf_size could not be more that 300k
3482 ==============================================================
3483 Luatex snapshot-20061013 was released 20061013
3484 ==============================================================
3486 Last friday I uploaded a new snapshot and today I finally
3487 finished updating the manual to go with it. The changes all
3488 relate to startup, file i/o, and callbacks. The main achievement
3489 is: you can now run luatex without it *ever* initializing kpathsea.
3491 Because I am lazy, I have checked in the pdf of the manual
3492 as well, so that I can say: Please look at
3494 https://foundry.supelec.fr/plugins/scmsvn/viewcvs.php/manual/
3495 /luatexref-t.pdf?root=luatex&rev=148&view=log
3497 for all the details. :-)
3499 ==============================================================
3500 Luatex snapshot-20061002 was released 20061002
3501 ==============================================================
3504 * Some infrastructure changes:
3506 libs/slnunicode-0.9.1/ renamed to libs/slnunicode/
3510 (zziplib is using a different version of autofoo. I know I have
3511 messed up something in the build process, but the bit we need
3512 compiles ok so I've postponed attempting to fix it)
3514 * The callback logic has changed quite a bit.
3516 - all callbacks are now only possible in lua state 0.
3518 - The callback 'input_line' has disappeared, and is replaced by
3519 'open_read_file'. One of the return values of that callback
3520 is a table that defines a 'reader' function for line reading.
3522 See the manual for further information on this.
3524 - There are some new callbacks for the reading of various binary
3525 files. The current ones are:
3527 "read_ocp_file", "read_vf_file", "read_data_file", "read_font_file",
3530 The rest of the file types will follow soon (fonts, enc files, and
3533 - There are also some new callbacks that 'find' a file's pathname:
3535 "find_truetype_file", "find_type1_file", "find_image_file"
3537 here too, more will follow later.
3539 - the functions from io. that were copied to texio have been removed
3540 again. The new callbacks do not pass file pointers around, so
3541 they ere not longer needed
3543 - the 'open_write_file' is temporarily unavailable
3545 * startup.lua is now always loaded into lua state 0
3547 * The luazip library from kepler is linked in, so there the table 'zip'
3548 is accessible from all lua states.
3550 ==============================================================
3551 Luatex snapshot-20060922 was released 20060922
3552 ==============================================================
3554 * The texio table has gained a new function:
3556 tex_file = texio.open(filename)
3558 returns a file handle of a type that luatex can use
3559 internally (the return of io.open is unusable in callbacks
3560 because it will be garbage-collected at a random time)
3563 * In related news, there are two new callbacks you can define:
3565 callback.register('open_read_file', f)
3566 callback.register('open_write_file', f)
3568 where your function should have the following conventions:
3570 function f (number id_number, string asked_name)
3571 return boolean success, string actual_name, tex_file filep
3574 id_number: zero for the log or \input files or TeX's \read
3575 number incremented by one (\read0 becomes 1).
3576 asked_name: the user-supplied filename
3578 success: return false for error, true otherwise.
3580 The remaining two items are only looked at if you return true:
3582 actual_name: the true filename used (with extension!)
3583 filep: a file object opened though texio.open()
3586 * The tex.print function has an extra optional parameter:
3588 tex.print(ctt_id n, strings ...)
3590 This prints the strings using the catcode regime defined by
3591 \catcodetable n (assuming n is valid, see below)
3593 * The new function tex.sprint has the same lua conventions as
3594 tex.print, but behaces slightly different on the tex side:
3596 ** tex does not switch to the 'new_line' state (this implies
3597 that leading spaces are not ignored)
3598 ** no \endlinechars are inserted
3599 ** trailing spaces are not removed from the argument
3601 * Catcode tables are a completely new feature, that allows
3602 you to switch the current catcode regime in one simple
3605 \catcodetable <count>
3607 Switches to the use of a different set of catcodes (table),
3608 that is stored under the number <count>. Such a table has to
3609 be previously created using one of the two command below, or
3610 the number 0 (which is pre-inititialized)
3612 This command obeys normal grouping rules.
3614 \initcatcodetable <count>
3616 creates a new, global, independent catcode table with catcodes
3617 matching the code that are predefined by initex (tex -ini).
3619 This allocation is global
3621 \savecatcodetable <count>
3623 copies the current set of catcodes to a new, global, table
3624 with id number <count>. The definitions in this new table
3625 are all treated as if they were made in the outermost level.
3627 This allocation is global
3629 At the end of each grouping level, items within all existing
3630 catcodetables are restored, regardless of which one is the
3631 currently active table.
3633 Catcode table numbers cannot be larger than 0xFFFFFFF (228-1)
3635 * There is a new lua table: lua. It contains three read-only
3638 lua.id -- the id number of the instance
3639 lua.version -- a luatex version identifier string
3640 lua.startupfile -- the full filename (+path) of startup.lua
3642 and it also contains a read/write array:
3644 lua.bytecode[] -- lua executable bytecode
3646 This array can be used to save and restore lua functions
3647 across lua states. The accepted values are for assignments
3648 are functions and nil. Likewise, the retrieved value is
3649 either a function or nil.
3651 The contents of the lua.bytecode array is stored inside the
3652 format file, so it can also be used to preload lua code.
3655 * The format files are quire a bit smaller than before
3658 ==============================================================
3659 Luatex snapshot-20060915 was released 20060915
3660 ==============================================================
3662 * There is a new TEX primitive: \formatname. It is similar
3663 to \jobname (read-only). In initex, the expansion is empty,
3664 otherwise the expansion is the same as the \jobname from
3667 * the lua "tex" table has been expanded with a few of the 'convert'
3668 codes (read-only). The supported ones at this moment are:
3675 tex.pdfnormaldeviate
3682 This list looks haphazard, but it really is not. These are
3683 all the cases of the 'convert' internal command that do not
3684 require an argument.
3686 * The metatables of the subtables like tex.dimen[] etc. are now
3687 adjustable from lua (not that I recommend doing that;-)).
3689 * On the lua side, there is a new global value: "luaid"
3690 It holds the internal id number of this \directlua instance.
3692 * There is a new lua table, "callback", that has the single function
3693 "callback.register", used to register callbacks. This replaces
3694 the previous concoction (see my message about snapshot 20060901).
3697 callback.register(<callback name>,function (f) ... end)
3699 where the <callback name> is for the moment, either "input_line"
3700 or "show_error_hook".
3702 This function internalizes the callback function in such a way
3703 that you no longer have to worry about \luacallback (which has
3704 been removed), nor does it matter if you redefine a function
3707 The internal testing for callback presence is also quite a bit
3708 faster, thanks to this change. Callback assignments are global
3709 and the "input_line" always takes effect starting on the next
3710 input line to be read from an actual file.
3713 * \detokenizedlua has been removed. It is functionally replaced by
3714 the new function call tex.write("").
3716 Each argument to each call of tex.write () counts as an input
3718 ** all catcodes on that line are either 'space' (for " ") or
3719 'character' for all others.
3720 ** there is no \newlinechar appended.
3722 * The implementation of tex.print() has changed as well:
3724 ** the very last tex.print() line from a \directlua
3725 will no longer have a trailing \newlinechar
3726 (this is very convenient when \directlua is used
3728 ** tex.print() is quite a lot faster than before, and the total amount
3729 of returnable text from a \directlua is now only limited by
3730 available system RAM. However, each separate tex.print ()
3731 argument has to fit in TeX's input buffer.
3733 * The new primitive \luastartup can be set inside the format file
3734 to specify the lua instance number in which a possible runtime
3735 startup.lua script is executed (initex always uses 0)
3737 * There is a new primitive \scantextokens. Differences with
3738 eTeX's \scantokens are:
3740 ** the last line (usually only) from \scantextokens
3741 does not have a \newlinechar
3743 ** \scantextokens never raises an eof error.
3745 This means things like
3748 {\scantextokens{\ifnum1=1 true}\else false\fi}
3750 are legal input (but potentially dangerous!).
3753 local d = tex.dimen["unknowndimen"]
3754 'd' will now become "nil" instead of raising an error
3757 tex.dimen["unknowndimen"] = d
3758 is still (and probably will remain) illegal
3760 ==============================================================
3761 Luatex snapshot-20060908 was released 20060908
3762 ==============================================================
3764 * BIG CHANGE: \directlua now runs \scantokens internally.
3766 There is no longer a need to call scantokens yourself, the
3767 tex.print() output is now fed straight into a pseudo file.
3768 This is quite a bit faster as well as easier to use, but
3769 just in case you want it, the old behaviour is still present,
3775 * The texio library now has its own (partial) set of I/O commands,
3776 so that the standard lua io library is back to the distributed
3777 state (no more patched garbage collector)
3779 Note: This is really a very small change (it should not have any
3780 impact on wellbehaved input files), but I attempt to be complete
3781 in these notes, since there is no official documentation yet.
3784 * There is a new standard library available: kpse
3786 The most important function in that library is find_file:
3788 string = kpse.find_file(string filename
3790 [,boolean mustexist])
3792 both "type" and "mustexist" are optional, so the function
3793 has from one upto three arguments.
3795 "type" is like the '-format' argument of kpsewhich. You can
3796 run 'kpsewich -h' for a list. The default type is "tex".
3798 "mustexist" is like '-must-exist', and the default is false.
3799 If you specify "true" (or a nonzero integer), then the kpse
3800 library will search the disk as well as the ls-R databases
3802 The new library also has three other functions that map
3803 straight to kpsewhich commandline options:
3805 string = kpse.expand_path(string)
3806 string = kpse.expand_var(string)
3807 string = kpse.expand_braces(string)
3809 * There is a second callback possibility:
3811 texio.show_error_hook(string message,
3812 string|number indicator,
3815 This command is run from inside the TeX error function, and the
3816 idea is to allow you to do some extra reporting on top of what
3817 TeX already does (none of the normal actions are removed).
3819 "message" is the formal error message tex has given to the
3820 user (the line after the "! ")
3821 "indicator" is either a filename (when it is a string) or a
3822 location indicator (a number) that can means lots of different
3823 things like a token list id or a \read number.
3824 "lineno" is the current line number
3826 This is an investigative item only, comments are welcome but do
3827 not take the syntax seriously.
3829 The final goal IMO is the total replacement of TeX's error
3830 handling routines, but that needs lots of adjustments
3831 in the web source because TeX deals with errors in a somewhat
3832 haphazard fashion (it needs unification first). The current
3833 hook is only for 'testing the water'.
3835 * It is now possible to use named items in the
3841 subtables, so you can have
3843 tex.count.scratchcounter = 0
3844 local enormous = tex.dimen["maxdimen"]
3846 Luatex looks up the value for you on the fly. You have to use a
3847 valid \countdef (or \dimendef, or \toksdef), anything else will
3850 In a normal TeX file, you don't do \dimen\maxdimen, but the
3851 lua syntax seems to be a bit cleaner to me. The intention is
3852 to evntually also allow \chardefs and macros that expand
3853 into a number (todo)
3856 * The tex table has also been extended with a large list of internal
3857 parameters (partially read/write). It is possible to access
3858 about every primitive that you can use after \the *and* is a
3859 single token. So there is
3861 integer = tex.tracingcommands (\the\tracingcommands)
3862 integer = tex.prevgraf (\the\prevgraf)
3863 string = tex.output (\the\output)
3865 etc. for all of the internal parameters, but not the items
3866 that need extra arguments (like \the\scriptfont )
3868 The subset comprising simple integer and dimension registers
3869 are writable as well as readable (stuff like \tracingcommands
3872 The fact that both lists are still quite limited is a result of
3873 the very different types of things that can occur after \the and
3874 also on the LHS of an assignment. The remaining primitives will
3875 be filled in when there is a real need or implementation becomes
3876 simple, whichever comes first.
3880 ==============================================================
3881 Luatex snapshot-20060901 was released 20060901
3882 ==============================================================
3884 All changes are related to lua this time, and most are quite unstable
3885 / experimental. But first the things that are stabel/fixed bugs:
3887 * A VF loading bug that turned up in some of Hans' fonts
3890 * A small series of bounds checking fixes to \ocplist has been
3891 added to prevent the system from crashing due to array indexes
3892 running out of bounds.
3894 * The Lua file searching paths are now fixed. The search path for lua
3895 script files now contains the following items (tried in order)
3896 1. the local directory:
3898 (for document-specific files)
3899 2. the items from the expansion of kpathsea's $TEXMFSCRIPTS variable,
3900 but only the parts containing 'lua' as a subpath:
3901 $TEXMFSCRIPTS<lua>/?.lua
3902 $TEXMFSCRIPTS<lua>/?/init.lua
3903 (for format-specific files)
3904 3. the $SELFAUTOPARENT sibling directory named 'lib'.
3905 $SELFAUTOPARENT/lib/lua/5.1/?.lua
3906 $SELFAUTOPARENT/lib/lua/5.1/?/init.lua
3907 (for files that are not related to tex)
3909 The search path for dynamic libraries has only
3910 1. the local directory:
3912 (for document-specific files)
3913 2. and the $SELFAUTOPARENT sibling directory named 'lib'.
3914 $SELFAUTOPARENT/lib/lua/5.1/?.so
3916 (of course the extension is .dll on windows, but .dlls do not
3917 work at the moment so it will not do you much good)
3919 * There are two functions available within a new table called
3921 texio.write (luastring)
3922 texio.write_nl (luastring)
3923 both write the luastring to the same location(s) TeX writes
3924 its stuff. So if \batchmode is on, it writes only to the
3925 log, inside a \write, it prints to the current write file,
3928 A read|write interface to TeX's "file selector" will
3931 * At startup, luatex searches for a script named
3933 in the path list I explained above. If such a file exists, it is
3936 This happens right before the first input file needs to be opened
3937 (that is after format loading, but before any \everyjob tokens).
3939 From within the script, you can check the value of
3943 that is the 'format identification' as used by TEX. When the variable
3944 is equal to nil, luatex in in 'initex' mode, otherwise it will be
3945 something like: " (format=plain 2006.9.1)"
3948 Now for the experimental portion: callbacks. Here is what I have done
3951 * The main reason for wanting startup.lua is file (input) re-encoding.
3952 For this purpose, it is now possible to set up a callback for
3955 If you attach a Lua function to
3959 then from the next input line onwards, luatex will run that
3960 function whenever it needs a new input line from a text file.
3962 Your function will receive a file handle as argument, and
3963 should return either a string or nil (with nil signalling that
3964 the end of file has occurred).
3966 The trivial case is simply this:
3971 texio.input_line = reader
3974 Warning: The implementation is not totally finished yet. For the
3975 moment the file handle ("f" in the example) is a normal lua file,
3976 with a simple but important restriction: you cannot alter its value.
3977 You cannot f:close() it, or assign it a different value. luatex
3978 will eventually close the file itself.
3980 The restriction is a side-effect of a synchronisation problem with
3981 the lua garbage collector. Because of this, it also was necessary
3982 to turn off the automatic file closing code for normal lua io
3983 files (In other words: you have to close yourself all the files
3984 you opened yourself, and you should not close any files you did
3987 In the near future, "f" will become a special 'texio' file object
3988 and the needed functionality from the normal io library will be
3989 reimplemented. Along with that change, there will also be a callback
3990 to open (i.e. find) files, and a simple interface to the compiled-in
3991 kpathsea to use within that callback.
3994 ==============================================================
3995 Luatex snapshot-20060825 was released 20060825
3996 ==============================================================
3998 The main change in this snapshot is that it uses far less memory.
3999 luatex -ini on my linux machine went from 326Mb (last week) to
4000 93Mb (now), and "texexec luatex" now ends at 184Mb instead of
4003 This is achieved by two big changes:
4005 * The \mathcode, \delcode, \catcode, \sfcode, \lccode and \uccode
4006 tables are now sparse arrays that are implemented in C. They
4007 are no longer part of the TeX "equivalence table" and because
4008 each had 1.1 million entries with a few memory words each, this
4009 makes a major difference.
4011 See mathcodes.c and textcodes.c if you are interested in the
4012 gory details, but be warned: the code is still extremely
4013 rough and ugly. In particular, the dump and undump routines
4014 are far from optimal, resulting in somewhat larger format files
4015 than before (approx 1.3Mb larger with unicode-letters loaded,
4016 10k without); and the assignments do not show up when using
4017 the etex tracing routines \tracingassigns and \tracingrestores
4018 (code simply not written yet)
4020 * Single-character commands are no longer "special" internally,
4021 they are stored in the hash just like the multiletter csnames.
4024 ==============================================================
4025 Luatex snapshot-20060818 was released 20060818
4026 ==============================================================
4028 The snapshot is up to par with Aleph-RC4 (from texlive devel)
4029 and the latest pdftex beta (even newer than 20060811). However,
4030 there are some differences, to summarize:
4032 * There is no pool file (all strings are embedded)
4034 * -8bit and -translate-file are silently ignored
4036 * There is no mltex nor enctex (conflicts with aleph)
4038 * The tex functionality is always present and enabled
4039 (but see below about TeXXeT), so the asterisk or
4040 -etex switch for initex is not needed
4042 * "plus 1 filllllllll" does not generate any errors from TeX
4044 * TeXXeT (from eTeX) is not present, so the primives
4052 * The experimental pdftex regex match operations are removed,
4053 because that feature does not make much sense when lua is
4054 available so the primitives
4059 * The input translations from Aleph are not implemented, the
4060 16 related primitives are all missing
4066 \noDefaultOutputMode
4069 \DefaultInputTranslation
4070 \noDefaultInputTranslation
4073 \DefaultOutputTranslation
4074 \noDefaultOutputTranslation
4075 \noOutputTranslation
4077 All file IO assumes UTF-8, except that all the low-ascii
4078 controls except TAB, CR en LF are written to the terminal
4079 using ^^ notation (even these are binary in the log file).
4081 * Input characters can use the full range of Unicode,
4082 but it probably only makes sense to use values above
4083 the base plane for \mathcode and \catcode assignments,
4084 since the fonts as well as the hyphenation patterns
4085 are strictly 16-bit still.
4088 \pdfpagewidth and \pagewidth,
4089 \pdfpageheight and \pageheight,
4090 \fontcharwd and \charwd,
4091 \fontcharht and \charht,
4092 \fontchardp and \chardp,
4093 \fontcharic and \charic,
4094 are all aliases of eachother.
4098 clears a marks class completely.
4100 * The experimental pdftex primitives
4105 and provided without the extra 'pdf' prefix, so they are
4113 * I probably forgot to mention some things :-)