November 2010 - dev-luatex - NTG Mailing Lists

[***SPAM***] Traversing node list structures
by Graham Douglas 29 Nov '10

29 Nov '10

Hi Taco Apologies if this is at all off-topic but I'd like to find out if the following is possible... Suppose I have some text in a \vbox {} say \setbox0 = \vbox{Some text that will be broken into lines...} I would like to access the node list of this \vbox and walk the node tree to emit (PostScript) code that will create an exact rendering of that typeset text, giving the same visual result you would see if the \vbox was placed directly into the main PDF generated by LuaTeX. I'm exploring node structures (using my GraphViz port and Patrick's viznodelist tool) but (as yet) don't understand how to traverse the nodelist such that you can output the typeset result. In particular, gaining access to (for example) the final set values of glue (skip) which occurs between words. This is a slightly unusual application but it would be much appreciated if you suggest how to go about doing this. In particular: the way you would traverse the node tree (which links to follow) to get the glyphs output in the right order and how to access or calculate the glue between words. Thank you as always for all your time and endless patience with so many questions. Very best wishes Graham

4 9

Cron <luatex@boekplan> /var/www/luatex.org/www/bin/luatex-svn
by root＠mail.boekplan.nl 29 Nov '10

29 Nov '10

------------------------------------------------------------------------ r4004 | taco | 2010-11-29 12:34:30 +0100 (Mon, 29 Nov 2010) | 2 lines Changed paths: M /trunk/manual/luatexref-t.pdf M /trunk/manual/luatexref-t.tex document \jobname discovery ------------------------------------------------------------------------ r4005 | taco | 2010-11-29 12:52:43 +0100 (Mon, 29 Nov 2010) | 2 lines Changed paths: M /trunk/source/texk/web2c/luatexdir/tex/texfileio.h M /trunk/source/texk/web2c/luatexdir/tex/texfileio.w M /trunk/source/texk/web2c/luatexdir/utils/synctex-luatex.h fix location of synctexfile when --output-directory is given ------------------------------------------------------------------------ r4006 | taco | 2010-11-29 13:03:09 +0100 (Mon, 29 Nov 2010) | 2 lines Changed paths: M /trunk/manual/luatexref-t.pdf M /trunk/manual/luatexref-t.tex add a little bit of extra discretionary explanatory text ------------------------------------------------------------------------ r4007 | taco | 2010-11-29 14:04:40 +0100 (Mon, 29 Nov 2010) | 2 lines Changed paths: M /trunk/source/texk/web2c/luatexdir/tex/texfileio.w fix commit 4005 (thanks Martin) ------------------------------------------------------------------------ r4008 | taco | 2010-11-29 14:16:36 +0100 (Mon, 29 Nov 2010) | 2 lines Changed paths: M /trunk/manual/luatexref-t.pdf M /trunk/manual/luatexref-t.tex M /trunk/source/texk/web2c/luatexdir/lua/lnodelib.c make node.type(node) return "node" ------------------------------------------------------------------------ r4009 | taco | 2010-11-29 14:27:00 +0100 (Mon, 29 Nov 2010) | 2 lines Changed paths: M /trunk/manual/luatexref-t.pdf M /trunk/manual/luatexref-t.tex more discretionary text improvements ------------------------------------------------------------------------ r4010 | taco | 2010-11-29 15:00:13 +0100 (Mon, 29 Nov 2010) | 2 lines Changed paths: M /trunk/manual/luatexref-t.pdf M /trunk/manual/luatexref-t.tex M /trunk/source/texk/web2c/luatexdir/lua/lnodelib.c M /trunk/source/texk/web2c/luatexdir/tex/texnodes.w rename node field 'list' to node field 'head' (cf #513) ------------------------------------------------------------------------ r4011 | taco | 2010-11-29 15:11:32 +0100 (Mon, 29 Nov 2010) | 2 lines Changed paths: M /trunk/manual/luatexref-t.pdf M /trunk/manual/luatexref-t.tex M /trunk/source/texk/web2c/luatexdir/luafontloader/src/luafflib.c add error return tables for fontloader.apply_featurefile and fontloader.apply_afmfile ------------------------------------------------------------------------ r4012 | taco | 2010-11-29 15:45:53 +0100 (Mon, 29 Nov 2010) | 2 lines Changed paths: M /trunk/source/texk/web2c/luatexdir/tex/texfileio.w patch start_input to take cur_name and cur_ext from fullnameoffile (fixing bug 498) ------------------------------------------------------------------------ r4013 | taco | 2010-11-29 15:58:50 +0100 (Mon, 29 Nov 2010) | 3 lines Changed paths: M /trunk/manual/luatexref-t.tex M /trunk/source/texk/web2c/luatexdir/lua/lnodelib.c remove the badly named node.protrusion_skipable function and sort the function table list ------------------------------------------------------------------------

1 0

Cron <luatex@boekplan> /var/www/luatex.org/www/bin/luatex-svn
by root＠mail.boekplan.nl 29 Nov '10

29 Nov '10

------------------------------------------------------------------------ r4003 | taco | 2010-11-29 11:26:37 +0100 (Mon, 29 Nov 2010) | 2 lines Changed paths: M /trunk/manual/luatexref-t.pdf M /trunk/manual/luatexref-t.tex document what actually happens when discretionaries and ligatures are combined ------------------------------------------------------------------------

1 0

Cron <luatex@boekplan> /var/www/luatex.org/www/bin/luatex-svn
by root＠mail.boekplan.nl 28 Nov '10

28 Nov '10

------------------------------------------------------------------------ r4001 | taco | 2010-11-28 16:49:46 +0100 (Sun, 28 Nov 2010) | 3 lines Changed paths: M /trunk/manual/luatexref-t.pdf M /trunk/manual/luatexref-t.tex M /trunk/source/texk/web2c/Makefile.in M /trunk/source/texk/web2c/luatexdir/am/libluatex.am A /trunk/source/texk/web2c/luatexdir/lua/llfslibext.c M /trunk/source/texk/web2c/luatexdir/lua/luastuff.w M /trunk/source/texk/web2c/luatexdir/lua/luatex-api.h M /trunk/source/texk/web2c/luatexdir/luafilesystem/Makefile M /trunk/source/texk/web2c/luatexdir/luafilesystem/README M /trunk/source/texk/web2c/luatexdir/luafilesystem/doc/us/index.html M /trunk/source/texk/web2c/luatexdir/luafilesystem/doc/us/manual.html M /trunk/source/texk/web2c/luatexdir/luafilesystem/src/lfs.c M /trunk/source/texk/web2c/luatexdir/luafilesystem/src/lfs.def M /trunk/source/texk/web2c/luatexdir/luafilesystem/tests/test.lua update to lfs 1.5.0, and move the extra luatex lfs functions to a new C file (lua/llfslibext.c) ------------------------------------------------------------------------ r4002 | oneiros | 2010-11-28 18:55:28 +0100 (Sun, 28 Nov 2010) | 2 lines Changed paths: M /trunk/source/texk/web2c/luatexdir/lua/llfslibext.c fix svn:keywords ------------------------------------------------------------------------

1 0

(fwd) Bug#441595: not all libraries are customized, there is room for improvement
by Norbert Preining 28 Nov '10

28 Nov '10

Dear Taco, one of the lua Gurus here at Debian checked the embedded libs and found that most of the included libs are very similar to upstream, and he offered to push the few changes in your code to upstream. What do you say? (See attached email, including the diffs between current upstream of the lua libs and code in texlua). Best wishes Norbert ------------------------------------------------------------------------ Norbert Preining preining(a){jaist.ac.jp, logic.at, debian.org} JAIST, Japan TU Wien, Austria Debian TeX Task Force DSA: 0x09C5B094 fp: 14DF 2E6C 0307 BE6D AD76 A9C0 D2BF 4AA3 09C5 B094 ------------------------------------------------------------------------ BULDOOO a virulent red-coloured pus which generally accompanies clonmult (q.v.) and sandberge (q.v.) --- Douglas Adams, The Meaning of Liff

5 14

Cron <luatex@boekplan> /var/www/luatex.org/www/bin/luatex-svn
by root＠mail.boekplan.nl 28 Nov '10

28 Nov '10

------------------------------------------------------------------------ r3998 | taco | 2010-11-28 13:30:00 +0100 (Sun, 28 Nov 2010) | 2 lines Changed paths: M /trunk/manual/luatexref-t.pdf M /trunk/manual/luatexref-t.tex manual fixes from Paul Isambert ------------------------------------------------------------------------ r3999 | taco | 2010-11-28 14:51:00 +0100 (Sun, 28 Nov 2010) | 2 lines Changed paths: M /trunk/source/texk/web2c/luatexdir/tex/textoken.w make scan_keyword() save the align_state, to fix bug 503. ------------------------------------------------------------------------ r4000 | taco | 2010-11-28 14:58:35 +0100 (Sun, 28 Nov 2010) | 2 lines Changed paths: M /trunk/source/texk/web2c/luatexdir/tex/commands.h correct small documentation bug in a comment ------------------------------------------------------------------------

1 0

Cron <luatex@boekplan> /var/www/luatex.org/www/bin/luatex-svn
by root＠mail.boekplan.nl 28 Nov '10

28 Nov '10

------------------------------------------------------------------------ r3991 | taco | 2010-11-28 09:08:07 +0100 (Sun, 28 Nov 2010) | 2 lines Changed paths: M /trunk/manual/luatexref-t.pdf M /trunk/manual/luatexref-t.tex clean up the primitives table ------------------------------------------------------------------------ r3992 | taco | 2010-11-28 09:24:21 +0100 (Sun, 28 Nov 2010) | 2 lines Changed paths: M /trunk/source/texk/web2c/luatexdir/tex/mathcodes.w restore backward compatibity for \meaning\mathchar ------------------------------------------------------------------------ r3993 | taco | 2010-11-28 10:09:19 +0100 (Sun, 28 Nov 2010) | 4 lines Changed paths: M /trunk/source/texk/web2c/luatexdir/tex/linebreak.w Fix an assert on local Head = node.copy_list(head) tex.linebreak(Head) ------------------------------------------------------------------------ r3994 | taco | 2010-11-28 10:38:01 +0100 (Sun, 28 Nov 2010) | 2 lines Changed paths: M /trunk/source/texk/web2c/luatexdir/pdf/pdfpage.w fix bug #525 ------------------------------------------------------------------------ r3995 | taco | 2010-11-28 10:49:37 +0100 (Sun, 28 Nov 2010) | 3 lines Changed paths: M /trunk/manual/luatexref-t.tex M /trunk/source/texk/web2c/luatexdir/tex/linebreak.w ease the restriction on linebreak_filter: at least one hbox should be returned, but that is not necessarily the last node (this fixes bug #526) ------------------------------------------------------------------------ r3996 | taco | 2010-11-28 11:26:06 +0100 (Sun, 28 Nov 2010) | 2 lines Changed paths: M /trunk/source/texk/web2c/luatexdir/font/texfont.w fix a memcpy() overrun in copy_font() ------------------------------------------------------------------------ r3997 | taco | 2010-11-28 11:37:21 +0100 (Sun, 28 Nov 2010) | 2 lines Changed paths: M /trunk/source/texk/web2c/luatexdir/font/texfont.w copy_font forgot to update the charinfo count, causing bug #486 ------------------------------------------------------------------------

1 0

incompatible \meaning of \mathchar command
by Heiko Oberdiek 28 Nov '10

28 Nov '10

Hello, \meaning produces a different output for luatex for commands, defined by \mathchardef, test file for iniTeX/plain/latex: \catcode`\{=1 \catcode`\}=2 \mathchardef\x=0 % \immediate\write16{[\meaning\x]} \csname @@end\endcsname\end Result for "luatex --ini": [\mathchar"0000] All other TeX compilers (tex/pdftex/xetex) don't print leading zeros: [\mathchar"0] Is this on purpose or an accident/bug? Yours sincerely Heiko Oberdiek

2 1

small fix for manual tex.extraprimitives
by Heiko Oberdiek 28 Nov '10

28 Nov '10

Hello, section "4.12.11.2 tex.extraprimitives" lists the name of the primitives for "tex": vskip write vsize unhcopy output - / unskip The extra space between `vsize' (\vsize) and `unhcopy' (\unhcopy) probably means ` ' (\ ). Perhaps the manual can here use a visible space (\textvisiblespace in LaTeX). Yours sincerely Heiko Oberdiek

2 1

Cron <luatex@boekplan> /var/www/luatex.org/www/bin/luatex-svn
by root＠mail.boekplan.nl 27 Nov '10

27 Nov '10

------------------------------------------------------------------------ r3989 | taco | 2010-11-27 11:40:38 +0100 (Sat, 27 Nov 2010) | 2 lines Changed paths: M /trunk/source/texk/web2c/luatexdir/utils/synctex.c fix synctex support ------------------------------------------------------------------------ r3990 | taco | 2010-11-27 11:41:18 +0100 (Sat, 27 Nov 2010) | 2 lines Changed paths: M /trunk/source/texk/web2c/luatexdir/utils/synctex.c turn off synctex debugging ------------------------------------------------------------------------

1 0