restricted system commands enabled.
**attr-nodes.tex
(./attr-nodes.tex
box: hlist=5
list: glyph=7 glue=7 kern=7 penalty=7 rule=7 whatsit=7 hlist=7 disc=7
Underfull \hbox (badness 10000) in paragraph at lines 20--20
\f x
\hbox(4.30554+0.0)x100.0, direction TLT []
vbox: vlist=6
vlist: hlist=8
line: local_par=8 glyph=8 penalty=8 glue=8 glue=8
! \textfont1 is undefined (character 120).
l.22 \setbox0\hbox{\A=9 $x$
}
Somewhere in the math formula just ended, you used the
stated character from an undefined font family. For example,
plain TeX doesn't allow \it or \sl in subscripts. Proceed,
and I'll try to forget that I needed that character.
math: math=9 math=9
hpack: hlist=4
Overfull \vbox (1.0pt too high) detected at line 26
\vbox(0.0+0.0)x0.0, direction TLT []
vsplit: vlist=4)
No pages of output.