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# or ##, that is the question
by Jonathan Sauer 17 Oct '07

17 Oct '07

Hello, (This is not strictly LuaTeX-related, though LuaTeX exhibits the same behaviour. But the LuaTeX ML is the only TeX-related forum I currently have access to. And maybe this is something to fix in LuaTeX ;-) While writing unit tests for some of my macros, I stumbled on the following weird behaviour when expanding \toks registers inside \edef using \the (PlainTeX): ---------------------------------- CUT ------------------------------- \catcode`\@=11 \def\log#1{\immediate\write\sixt@@n{#1}} \toks@{|##|} % Obvious result: Doubled \edef\foo{\the\toks@} \log{1: \meaning\foo} % Obvious as well: Doubled \edef\foo{\the\toks@\the\toks@} \log{2: \meaning\foo} % Now this is weird: First doubled, then not \edef\foo{\the\expandafter\toks@\the\toks@} \log{3: \meaning\foo} \bye ---------------------------------- CUT ------------------------------- This produces the following output: ---------------------------------- CUT ------------------------------- TeX: $ tex ToksSharpTest.tex This is TeX, Version 3.141592 (Web2C 7.5.5) (./ToksSharpTest.tex 1: macro:->|####| 2: macro:->|####||####| 3: macro:->|####||##| ) No pages of output. Transcript written on ToksSharpTest.log. pdfTeX: $ pdftex ToksSharpTest.tex This is pdfTeX, Version 3.141592-1.40.3 (Web2C 7.5.6) entering extended mode (./ToksSharpTest.tex 1: macro:->|####| 2: macro:->|####||####| 3: macro:->|####||##| ) No pages of output. Transcript written on ToksSharpTest.log. LuaTeX: $ luatex ToksSharpTest.tex This is luaTeX, Version 3.141592-beta-0.11.2-2007091918 (Web2C 7.5.6) (ToksSharpTest.tex 1: macro:->|####| 2: macro:->|####||####| 3: macro:->|####||##| ) No pages of output. Transcript written on ToksSharpTest.log. ---------------------------------- CUT ------------------------------- So when jumping out of the first expansion of the \toks register and into the second expansion, TeX seems to forget that it is inside an \edef and thus does not double the ##. I do not know what to make of this. I could not find any place in the TeXbook where it is stated that # is doubled when expanding a \toks register inside \edef, so this might not be a bug, but simply some weird undocumented phenomenon. And it might be useful too, to build up the body of a complicated macro inside a \toks register before finally creating the macro using \edef: % Empty dummy register \toksA{} % Macro body (not really complicated) \toksB{[#1] [#2]} % Define the macro \edef\macro#1#2{\the\expandafter\toksA\the\toksB} \meaning\macro would then be: macro:#1#2->[#1] [#2] What do you think? Jonathan

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Cron <luatex@vz3> /var/www/luatex.org/www/bin/luatex-svn
by root＠www.bittext.nl 12 Oct '07

12 Oct '07

U svn/trunk/src/texk/web2c/luatexdir/luatex.web U svn/trunk/src/texk/web2c/luatexdir/lang/texlang.c U svn/trunk/src/texk/web2c/luatexdir/lua/lcallbacklib.c U svn/trunk/src/texk/web2c/luatexdir/lua/luanode.c U svn/trunk/src/texk/web2c/luatexdir/lua/lnodelib.c U svn/trunk/src/texk/web2c/luatexdir/luatex.h U svn/trunk/src/texk/web2c/luatexdir/nodes.h U svn/trunk/src/texk/web2c/luatexdir/font/luafont.c U svn/trunk/src/texk/web2c/luatexdir/font/texfont.c U svn/trunk/src/texk/web2c/luatexdir/font/texfont.h U svn/trunk/src/texk/web2c/luatexdir/luatex.defines Checked out revision 793.

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state of development
by Taco Hoekwater 12 Oct '07

12 Oct '07

Hi all, I have just committed last week's work to the repository. The code is not yet stable, but this makes sure the data is safe from harm, and it allows me to look at it during the weekend. I'll write down the details when the next beta comes out (hopefully sometime next week) but so you know why it takes so long: the next beta will finally split apart all of the intermingled stuff relating to hyphenation and ligature/kern processing. Best wishes, Taco

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[Fwd: [Fontforge-devel] ORA pro nobis]
by Taco Hoekwater 11 Oct '07

11 Oct '07

I assume some of you may be interested in this book as well. Best wishes, Taco -------- Original Message -------- Subject: [Fontforge-devel] ORA pro nobis Date: 09 Oct 2007 12:57:06 -0700 From: George Williams <gww(a)silcom.com> Organization: FontForge To: fontforge-devel(a)lists.sourceforge.net CC: fontforge-users(a)lists.sourceforge.net O'Reilly & Associates has finally shipped the English translation of Yannis Haralambous's Fonts & Encodings It has a large section of FontForge, though I fear it may be a bit out of date by now. ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Fontforge-devel mailing list Fontforge-devel(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/fontforge-devel

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a problem with ~=
by weg＠indiscrete.org 09 Oct '07

09 Oct '07

Hi , \directlua 0{ if ("ab" ~= "cb") then do texio.write_nl("not equal") end end } \bye results in ! LuaTeX error [string "luas[0]"]:1: ')' expected near '\'. This is with yesterday's svn. eythan

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Cron <luatex@vz3> /var/www/luatex.org/www/bin/luatex-svn
by root＠www.bittext.nl 08 Oct '07

08 Oct '07

U svn/trunk/src/texk/web2c/luatexdir/luatex.web U svn/trunk/src/texk/web2c/luatexdir/lang/texlang.c U svn/trunk/src/texk/web2c/luatexdir/lua/lcallbacklib.c U svn/trunk/src/texk/web2c/luatexdir/lua/luanode.c U svn/trunk/src/texk/web2c/luatexdir/lua/lnodelib.c U svn/trunk/src/texk/web2c/luatexdir/luatex.h U svn/trunk/src/texk/web2c/luatexdir/ptexlib.h U svn/trunk/src/texk/web2c/luatexdir/nodes.h U svn/trunk/src/texk/web2c/luatexdir/font/luafont.c U svn/trunk/src/texk/web2c/luatexdir/luatex.defines Checked out revision 789.

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Cron <luatex@vz3> /var/www/luatex.org/www/bin/luatex-svn
by root＠www.bittext.nl 08 Oct '07

08 Oct '07

U svn/trunk/src/libs/zziplib/zzip/Makefile U svn/trunk/src/texk/web2c/luatexdir/hyphen.h U svn/trunk/src/texk/web2c/luatexdir/luatex.web U svn/trunk/src/texk/web2c/luatexdir/lang/texlang.c U svn/trunk/src/texk/web2c/luatexdir/lua/luanode.c U svn/trunk/src/texk/web2c/luatexdir/ptexlib.h U svn/trunk/src/texk/web2c/luatexdir/nodes.h Checked out revision 788.

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Cron <luatex@server> /home/luatex/luatex-svn
by root＠aanhet.net 05 Oct '07

05 Oct '07

U luatex/trunk/src/texk/web2c/luatexdir/luatex.web U luatex/trunk/src/texk/web2c/luatexdir/lua/lnodelib.c Checked out revision 786.

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tex.print vs. texio.write
by Jonathan Sauer 05 Oct '07

05 Oct '07

Hello, tex.print/tex.sprint/tex.write accept an arbitrary number of parameters, whereas texio.write does not. Is there a reason for this discrepancy? (other than "temporary implementation", of course ;-) Jonathan

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Cron <luatex@server> /home/luatex/luatex-svn
by root＠aanhet.net 05 Oct '07

05 Oct '07

U luatex/trunk/src/texk/web2c/luatexdir/luatex.web U luatex/trunk/src/texk/web2c/luatexdir/lang/texlang.c U luatex/trunk/src/texk/web2c/luatexdir/lua/luatoken.c U luatex/trunk/src/texk/web2c/luatexdir/lua/llanglib.c U luatex/trunk/src/texk/web2c/luatexdir/lua/luanode.c U luatex/trunk/src/texk/web2c/luatexdir/lua/lnodelib.c U luatex/trunk/src/texk/web2c/luatexdir/lua/ltexiolib.c U luatex/trunk/src/texk/web2c/luatexdir/ptexlib.h U luatex/trunk/src/texk/web2c/luatexdir/nodes.h Checked out revision 784.

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