[Dev-luatex] Perplexing behaviour with \directlua and tex.print

[Graham Douglas]

Dear All

I am getting some strange behaviour with the following
minimal example via LaTeX with LuaTeX

\pdfoutput=1
\documentclass[12pt]{article}
\begin{document}
\directlua{tex.print("{\it abc}")}
\end{document}

I run the above and get a PDF which displays
the following text

protect protect protect edef OT1OT1let enc at update

I have no idea what is causing this. If I run
the following using plain TeX:

\pdfoutput=1
\directlua{tex.print("{\it abc}")}
\bye

I get a PDF which says:

am itfam enit abc

What am I doing wrong to cause this behaviour?

Log file contains

(\end occurred inside a group at level 1)

### simple group (level 1) entered at line 1 ({)
### bottom level

Cheers


Graham

Here's the log file from the pdflatex run:

==============
This is LuaTeX, Version beta-0.53.0-2010032719  (format=pdflatex 
2010.4.13)  16 MAY 2010 18:53
**g:/msys/1.0/trunk/build/texk/latex2.tex
(g:/msys/1.0/trunk/build/texk/latex2.tex
LaTeX2e <2009/09/24>
(g:/msys/1.0/trunk/build/texk/formats/pdflatex/base/article.cls
Document Class: article 2007/10/19 v1.4h Standard LaTeX document class
(g:/msys/1.0/trunk/build/texk/formats/pdflatex/base/size12.clo
File: size12.clo 2007/10/19 v1.4h Standard LaTeX file (size option)
)
\c at part=\count79
\c at section=\count80
\c at subsection=\count81
\c at subsubsection=\count82
\c at paragraph=\count83
\c at subparagraph=\count84
\c at figure=\count85
\c at table=\count86
\abovecaptionskip=\skip41
\belowcaptionskip=\skip42
\bibindent=\dimen102
) (./latex2.aux)
LaTeX Font Info:    Checking defaults for OML/cmm/m/it on input line 2.
LaTeX Font Info:    ... okay on input line 2.
LaTeX Font Info:    Checking defaults for T1/cmr/m/n on input line 2.
LaTeX Font Info:    ... okay on input line 2.
LaTeX Font Info:    Checking defaults for OT1/cmr/m/n on input line 2.
LaTeX Font Info:    ... okay on input line 2.
LaTeX Font Info:    Checking defaults for OMS/cmsy/m/n on input line 2.
LaTeX Font Info:    ... okay on input line 2.
LaTeX Font Info:    Checking defaults for OMX/cmex/m/n on input line 2.
LaTeX Font Info:    ... okay on input line 2.
LaTeX Font Info:    Checking defaults for U/cmr/m/n on input line 2.
LaTeX Font Info:    ... okay on input line 2.
[1

{g:/msys/1.0/trunk/build/texk/fonts/map/pdftex.map}] (./latex2.aux) )
(\end occurred inside a group at level 1)

### simple group (level 1) entered at line 1 ({)
### bottom level

Here is how much of LuaTeX's memory you used:
  210 strings out of 95220
  100000,74296 words of node,token memory allocated
  264 words of node memory still in use:
    2 hlist, 1 vlist, 1 rule, 2 glue, 40 glue_spec, 1 write nodes
    avail lists: 2:12,3:3,4:29,5:1,6:60,7:1,9:6,10:4
  3678 multiletter control sequences out of 65536+0
  15 fonts using 431807 bytes
  22i,4n,19p,181b,116s stack positions out of 300i,50n,60p,3000b,4000s
<g:/msys/1.0/trunk/build/texk/fonts/type1/cm/cmr12.PFB>
Output written on latex2.pdf (1 page, 6022 bytes).
PDF statistics: 10 PDF objects out of 1000 (max. 8388607)
  0 named destinations out of 1000 (max. 131072)
  1 words of extra memory for PDF output out of 10000 (max. 10000000)