\input luatexja.sty
\def\FN{KozMinPr6N-Regular}
+\hoffset-10mm
+\voffset-10mm
+\hsize180mm
+\vsize260mm
-\leavevmode
\tfont\VN=\FN:-vert;jfm=ujisv
\tfont\VT=\FN:+vert;jfm=ujisv
\tfont\VU=\FN:+vrt2;jfm=ujisv
\tfont\VD=\FN:jfm=ujisv
\tentt
\ltjsetparameter{jacharrange={+8}}
-\def\TEST{\tate 上⇦⇧⇩⇨⬅⬆⬇➡下¶\ltjjachar"253B\ltjjachar"0165,}
-\hbox{\TEST}
-\hbox{\VD\TEST ~~~~~default}
-\hbox{\VB\TEST +vert +vrt2}
-\hbox{\VN\TEST -vert -vrt2}
-\hbox{\VT\TEST +vert -vrt2}
-\hbox{\VU\TEST -vert +vrt2}
+\catcode`\@=11
+\parindent0pt
+\def\TESTA{\leavevmode
+\vbox{\hsize=21\zw\TEST}
+\ \vrule\
+\vbox{\hsize=210pt\VD\TEST \hfill\break\null\hfill~~~~default}
+\ \vrule\
+\vbox{\hsize=210pt\VB\TEST \hfill\break\null\hfill+vert +vrt2}
+\ \vrule\
+\vbox{\hsize=210pt\VN\TEST \hfill\break\null\hfill-vert -vrt2}
+\ \vrule\
+\vbox{\hsize=210pt\VT\TEST \hfill\break\null\hfill+vert -vrt2}
+\ \vrule\
+\vbox{\hsize=210pt\VU\TEST \hfill\break\null\hfill-vert +vrt2}
\par
+\expandafter\@gobble\TEST\par}
-\catcode`\@=11
-\expandafter\@gobble\TEST
+\def\TEST{\tate
+ 左←↑↓→☜☝☟☞⇦⇧⇩⇨⬅⬆⬇➡右¶\ltjjachar"253B\ltjjachar"0165\relax
+ あ:いーう,え、お.か。き;け“こ”さ‘し’す
+ ‥…〜ー=―‐゠㍉㌔㌢㍍㌘㌧㌃㌶㍑㍗㌍㌦㌣㌫㍊㌻㍾㍽㍼㍻=≒≠≡}
+\TESTA
\bye