%#! lualatex
\documentclass{ltjsarticle}
-\nonstopmode
+%\nonstopmode
\makeatletter
\newpage{\obeylines\tt
\setbox0=\hbox{\gt\textsl{あいう■\textup{■え■}■おかき}}
-\directlua{ltj.ext_show_node_list(tex.box[0].head, '', tex.print)}\par}
+\directlua{luatexja.ext_show_node_list(tex.box[0].head, '', tex.print)}\par}
\bigskip