%#!ptex2pdf -l text_composite.tex
\documentclass{ltjarticle}
%\DeclareTextComposite{\"}{OT1}{圏}{`点}% invalid
%\usepackage[utf8x]{inputenc}
%\usepackage[T1]{fontenc}
\DeclareTextCompositeCommand{\"}{OT1}{圏}{テン}
\DeclareTextCompositeCommand{\"}{T1}{圏}{テン}
\def\test{あ\AA あ\'(あ\'eあ\'圏い\"圏うa\"圏a\AA a（\AA）\'e}
\makeatletter
\begin{document}
\ltjsetparameter{xkanjiskip=15pt, yalbaselineshift=10pt}
\test
\setbox2=\hbox{あ\'eい}
\directlua{luatexja.ext_show_node_list(tex.getbox(2), ' ', print)}
\par
\ltjsetparameter{yalbaselineshift=0pt}
\test

\mathsurround20pt
\test

\end{document}
