[Dev-luatex] "strange" node

[Patrick Gundlach]

Hi,

I have this box:

\setbox0\vbox{x}

when I analyze the nodelist, I find a somewhat strange hlist node:

<node    nil <     30 >    nil : hlist 0>

which is referenced from the whatsit (local_par)/prev node pointer. See "n30" in the attached image. Is it safe to ignore this hlist?

(is this the parindent box? - answer from the other mail?)
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Another related question: sometimes I come across "nested_list" and "temp" nodes. Can I ignore these as well?

I wonder why two hlists point back to the same nested_list (n155).

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Patrick

(sorry for sending a psd-document in the other mail - graphviz on OS X is really buggy, I exported the graph as a PNG file and it was saved as mybox.png, but in reality it was something else.)