dev-luatex August 2007

dev-luatex@ntg.nl

11 participants
43 discussions

Snapshot 20070307
by Taco Hoekwater 10 May '12

10 May '12

Hi all, I decided to do a snapshot now instead of waiting for friday, because I want to start concentrating on something else besides font support issues. What's new: * Non-CID PostScript-based Opentype fonts are now combined over the entire document, and properly subsetted. The code is borrowed from xdvipdfmx with some minor adjustments Adding support for CID-keyed OpenType fonts would not be hard but at the moment I lack example input (and incentive). * A small extension to the virtual fonts structure: you can use f.fonts[1] = { 'id' = 38} to do a backreference to a previously defined font. This saves quite a few computations * There was a bug in the handling of \leaders in the output whereby it's width was taken to be twice what it should be while writing to the PDF, fixed now. * The font inclusion code is cleaned up a bit by Hartmut. * Some compilation problems were fixed. * There is (quite a bit of) debugging information printed out when OTPs are in use, because I am tracking down a bug reported by Idris. The input of each and every OTP step is shown on the terminal in a line line this: [57902][1568][58423][1568][58408][1568][58921] those are the decimal values of ocp i/o characters. If you don't need them, don't worry about it. Happy TeXing, Taco ----- Downloading and installation details: If you go to https://foundry.supelec.fr/frs/?group_id=10 you will see that there are three new released files: * luatex-snapshot-20070307.tar.bz2 This is the source tree. * luatex-snapshot-20070307-win32.zip A cross-compiled (mingw) windows binary. This is a web2c based binary, so it needs a texmf.cnf file (It will NOT work if you have only miktex installed). * luatex-snapshot-20070307-linux-i386.tar.bz2 An intel 32 linux binary (2.6.17)

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New snapshot
by Taco Hoekwater 25 Aug '07

25 Aug '07

Hi, I have just uploaded a new snapshot, the first one that presents itself as "beta 0.11". I will on vacation for the next two weeks, and I wanted to publish the font fixes I have been working on in the past week before that. New: * pfb/afms font can now be used in 'wide' (encodingbytes=2) mode Fixes: * set_attribute(-1) is now the same as unset_attribute() * OpenType lookups with glyph classes would crash luatex * luazlib would not compile on debian (fix from Norbert) * CID-based fonts would crash luatex * Bare CFF should be read in binary mode (fix from Akira) * VF processing did not process packets containing zero bytes properly As usual, I have uploaded source and binaries to http://foundry.supelec.fr/projects/luatex/ Have fun in the coming weeks, Taco

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problem with loading Chinese Fonts.
by Sherry Zhang 22 Aug '07

22 Aug '07

Hi, I was just playing luatex with the script in http://luatex.bluwiki.com/go/Use_a_TrueType_font , and found some problem. On Windows XP English Edition or Debian GNU/Linux with luatex 0.10.1 I wrote the following script: ------------------------------------------------------------------file begins \pdfoutput1 \directlua0{ callback.register('define_font', function(name, size) filename=kpse.find_file(name,"truetype fonts") if (filename) then if (size < 0) then size = (- 655.36) * size end ttffont = fontforge.to_table(fontforge.open(filename)) if ttffont then f = { } f.name = ttffont.fontname f.fullname = ttffont.names[1].names.fullname f.parameters = { } f.designsize = size f.size = size direction = 0 f.parameters.slant = 0 f.parameters.space = size * 0.25 f.parameters.space_stretch = 0.3 * size f.parameters.space_shrink = 0.1 * size f.parameters.x_height = 0.4 * size f.parameters.quad = 1.0 * size f.parameters.extra_space = 0 f.characters = { } mag = size / 2048 names_of_char = { } for char, glyph in pairs(ttffont.map.map) do names_of_char[ttffont.glyphs[glyph].name] = ttffont.map.backmap[glyph] end names_of_glyph = { } for char, glyph in pairs(ttffont.map.map) do names_of_glyph[ttffont.glyphs[glyph].name] = glyph end for char, glyph in pairs(ttffont.map.map) do glyph_table = ttffont.glyphs[glyph] f.characters[char] = { index = glyph, width = glyph_table.width * mag, name = glyph_table.name, } if glyph_table.kerns then local kerns = { } for _, kern in pairs(glyph_table.kerns) do kerns[names_of_char[kern.char]] = kern.off * mag end f.characters[char].kerns = kerns end end f.filename = filename f.type = 'real' f.format = 'truetype' f.cidinfo = { registry = "Adobe", ordering = "Identity", supplement = 0, version = 1 } end else f = font.read_tfm(name, size) end return f end ) } %\font\times= times.ttf at 10pt \times Like oratory, music, dance, calligraphy -- like anything that lends its grace to language -- typography is an art that can be deliberately misused. It is a craft by which the meanings of a text (or its absence of meaning) can be clarified, honored and shared, or knowingly disguised. %\font\arial= arial.ttf at 10pt \arial In a world rife with unsolicited messages, typography must often draw attention to itself before it will be read. Yet in order to be read, it must relinquish the attention it has drawn. Typography with anything to say therefore aspires to a kind of statuesque transparency. Its other traditional role is durability: not immunity to change, but a clear superiority to fashion. Typography at its best is a visual form of language linking timelessness and time. %\font\simhei= simhei.ttf at 10pt \simhei %中文 \bye ------------------------------------------------------------------End of file Step 1 times.ttf for Times New Roman and arial.ttf for Arial is available in Microsoft Windows XP, and they looks pretty well. so this script works. Step 2 but then I load a Chinese font, simhei.ttf. It is also available in the English Edition of Windows XP. and now luatex reports: Warning: Glyph 257 is named middot which should mean it is mapped to Unicode U+00B7, but Glyph 194 already has that encoding. and then it crash: This went wrong:[string "luas[0]"]:1: attempt to perform arithemetic on field 'width' (a nil value). <to be read again> \simhei So it fails to compile. Step 3 Then I found a smaller Chinese font named simkai.ttf, you can find it in the Simplified Chinese version of Windows XP. it compiles successfully with the Warning message but without the error message. it generate the pdf file, but the two chinese characters are so close (see the a.pdf I enclosed here) that they are almost in the same place. if I change mag = size / 2048 to mag = size / 256 then the space looks right. Step 4 I tried more Chinese ttf fonts and found that only a few can pass the test, and among those few, the character box width seems all wrong. So how can I make things right? or it is just a bug in luatex? Yue Wang

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dofile, require and kpathsea
by Jonathan Sauer 22 Aug '07

22 Aug '07

Hello, during the weekend, I wrote a little bit of code using external Lua files (since \directlua requires matching braces in the Lua code). I loaded this code using dofile or require. This worked perfectly when the .lua file was in the same directory as the .tex file, otherwise it was not found (even though kpsewhich could find it). I know that Lua's require uses its own search path, and I assume from my results that LuaTeX does not change this behaviour to use kpathsea. I now wonder if there are plans to change that. IMO this should be done, since LuaTeX embeds Lua in a very specific environment which searches for files using kpathsea, not a simple path set as an environment variable. What do you think? Jonathan

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LuaTeX to be in MikTeX 2.8
by Martin Schröder 22 Aug '07

22 Aug '07

http://docs.miktex.org/roadmap/#id471904 http://dojo.miktex.org/blogs/christian_schenk/archive/2007/08/21/1632.aspx Best Martin

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Cron <luatex@server> /home/luatex/luatex-svn
by root＠aanhet.net 20 Aug '07

20 Aug '07

U luatex/trunk/src/texk/web2c/luatexdir/luatex.web U luatex/trunk/manual/luatexref-t.tex U luatex/trunk/manual/luatexref-t.pdf Checked out revision 679.

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Cron <luatex@server> /home/luatex/luatex-svn
by root＠aanhet.net 19 Aug '07

19 Aug '07

U luatex/trunk/src/texk/web2c/luatexdir/font/writecff.c Checked out revision 678.

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Cron <luatex@server> /home/luatex/luatex-svn
by root＠aanhet.net 19 Aug '07

19 Aug '07

U luatex/trunk/src/libs/luafontforge/src/luafflib.c U luatex/trunk/src/libs/luafontforge/fontforge/fontforge/parsettf.c U luatex/trunk/src/texk/web2c/luatexdir/lua/lnodelib.c U luatex/trunk/src/texk/web2c/luatexdir/font/writecff.c U luatex/trunk/src/texk/web2c/luatexdir/font/writetype0.c U luatex/trunk/src/texk/web2c/luatexdir/font/writecff.h Checked out revision 677.

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Cron <luatex@server> /home/luatex/luatex-svn
by root＠aanhet.net 17 Aug '07

17 Aug '07

U luatex/trunk/src/libs/luafontforge/src/ffdummies.c U luatex/trunk/src/libs/luafontforge/src/luafflib.c A luatex/trunk/src/libs/luafontforge/fontforge/fontforge/splinesave.c A luatex/trunk/src/libs/luafontforge/fontforge/fontforge/tottfgpos.c U luatex/trunk/src/libs/luafontforge/fontforge/fontforge/Makefile A luatex/trunk/src/libs/luafontforge/fontforge/fontforge/tottf.c A luatex/trunk/src/libs/luafontforge/fontforge/fontforge/tottfvar.c U luatex/trunk/src/texk/web2c/luatexdir/font/writecff.c U luatex/trunk/src/texk/web2c/luatexdir/font/writefont.c Checked out revision 673.

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Letterspacing in LuaTeX: Wants to create <font>+<spacing>ls
by Jonathan Sauer 17 Aug '07

17 Aug '07

Hello, when typesetting a document of mine using LuaTeX, I noticed that letterspacing seems not to work: LuaTeX runs mktexpk to create the letterspaced font and fails. pdfTeX simply extends the spacing of the base font. I created a small Plain-based example file which demonstrates the behaviour: ------------------------------- CUT --------------------------------- \pdfoutput1 \letterspacefont\ltenrm\tenrm10 \ltenrm This is a test. \tenrm This is a test. \bye ------------------------------- CUT --------------------------------- The log: ------------------------------- CUT --------------------------------- This is luaTeX, Version 3.141592-beta-0.10.2-2007081018 (Web2C 7.5.6) (LetterspaceFont.tex [1{/usr/local/teTeX/share/texmf.local/fonts/map/pdftex/upd map/pdftex.map}]kpathsea: Running mktexpk --mfmode / --bdpi 72 --mag 1+0/72 --dpi 72 cmr10+10ls mktexpk: don't know how to create bitmap font for cmr10+10ls. kpathsea: Appending font creation commands to missfont.log. ) luaTeX warning (file cmr10+10ls): Font cmr10+10ls at 72 not found </usr/local/teTeX/share/texmf.tetex/fonts/type1/bluesky/cm/cmr10.pfb> Output written on LetterspaceFont.pdf (1 page, 5404 bytes). Transcript written on LetterspaceFont.log. ------------------------------- CUT --------------------------------- I have attached the resulting PDF; Acrobat 7 Mac displays a warning that some fonts were not found; Acrobat 8 Win simply uses Helvetica instead of the missing letterspaced font. It seems LuaTeX handles letterspacing like early versions of pdfTeX handle font expansion: By requiring an adjusted font file. Is this a bug? A feature? A reminder not to use letterspacing? ;-) Jonathan

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dev-luatex August 2007