restricted system commands enabled.
**lua-scan-list.tex
(./lua-scan-list.tex
L hlist 0 glyph
L hlist 0 glyph
> \box3=void
! OK.
l.11 \S\box3 \showbox3
Underfull \hbox (badness 10000) detected at line 12
x
\hbox(0.0+0.0)x2.0, direction TLT
.\nullfont x
L hlist 131072 glyph
L vlist 0 rule
L nil
! A <box> was supposed to be here.
<to be read again>
x
l.15 \S x
I was expecting to see \hbox or \vbox or \copy or \box or
something like that. So you might find something missing in
your output. But keep trying; you can fix this later.
L nil
GOT extension
LIST 0 glyph
> \box2=
\hbox(0.0+0.0)x0.0, direction TLT
.\nullfont x
.\nullfont y
! OK.
l.25 \setbox2\hbox{x\foo y}\showbox2
### horizontal mode entered at line 15
\localpar
.\localinterlinepenalty=0
.\localbrokenpenalty=0
.\localleftbox=null
.\localrightbox=null
\hbox(0.0+0.0)x0.0, direction TLT
\nullfont x
\glue(\spaceskip) 0.0
\glue(\spaceskip) 0.0
spacefactor 1000
### vertical mode entered at line 0
prevdepth ignored
! OK.
l.26 \showlists
[0])
Output written on lua-scan-list.dvi (1 page, 132 bytes).