+\setbox\z@\box\voidb@x
+\ifltj@everyhook@avail% using everyhook package
+ \newluafunction\ltj@@box@dirhook
+ \directlua{
+ local t, ltjd = lua.get_functions_table(), luatexja.direction
+ t[\the\ltj@@box@dirhook]
+ = function() ltjd.set_list_direction_hook() end
+ }
+ \PushPreHook{hbox}{\luafunction\ltj@@box@dirhook\aftergroup\ltj@@reset@badness}
+ \PushPreHook{vbox}{\luafunction\ltj@@box@dirhook\aftergroup\ltj@@reset@badness}
+\else
+ \let\ltj@@everyhbox=\everyhbox\let\ltj@@everyvbox=\everyvbox
+ \newtoks\ltj@@i@everyhbox\newtoks\ltj@@i@everyvbox
+ \let\everyhbox=\ltj@@i@everyhbox\let\everyvbox=\ltj@@i@everyvbox
+ \newluafunction\ltj@@box@dirhook
+ \directlua{
+ local t, ltjd = lua.get_functions_table(), luatexja.direction
+ t[\the\ltj@@box@dirhook]
+ = function() ltjd.set_list_direction_hook() end
+ }
+ \ltj@@everyhbox{\luafunction\ltj@@box@dirhook
+ \aftergroup\ltj@@reset@badness\the\ltj@@i@everyhbox}
+ \ltj@@everyvbox{\luafunction\ltj@@box@dirhook
+ \aftergroup\ltj@@reset@badness\the\ltj@@i@everyvbox}
+\fi
+
+\newluafunction\ltj@@reset@badness@inner
+\directlua{
+ local t = lua.get_functions_table()
+ t[\the\ltj@@reset@badness@inner] = function()
+ if luatexja.global_temp then
+ tex.hbadness= tex.hbadness or luatexja.hbadness_temp
+ tex.vbadness= tex.vbadness or luatexja.vbadness_temp
+ tex.globaldefs= luatexja.global_temp or tex.globaldefs
+ end
+ end}
+\protected\def\ltj@@reset@badness{\luafunction\ltj@@reset@badness@inner}
+
+\AtBeginShipout{\directlua{luatexja.direction.finalize()}}
+
+%%%% \raise, \lower, \moveleft, \moveright
+\let\ltj@@orig@raise=\raise
+\let\ltj@@orig@lower=\lower
+\protected\def\raise{\ltj@reset@globaldefs\afterassignment\ltj@@raise\ltj@tempdima}
+\protected\def\lower{\ltj@reset@globaldefs\afterassignment\ltj@@raise\ltj@tempdima-}
+\protected\def\ltj@@raise{%
+ \ltj@restore@globaldefs
+ \edef\ltj@@raise@a{%
+ \noexpand\directlua{luatexja.direction.raise_box()}%
+ \ltj@@orig@raise\the\ltj@tempdima\noexpand\box\ltj@afbox
+ }\ltj@afterbox\ltj@@raise@a}
+\let\ltj@@orig@moveleft=\moveleft
+\let\ltj@@orig@moveright=\moveright
+\protected\def\moveleft{\ltj@reset@globaldefs\afterassignment\ltj@@moveleft\ltj@tempdima}
+\protected\def\moveright{\ltj@reset@globaldefs\afterassignment\ltj@@moveleft\ltj@tempdima-}
+\protected\def\ltj@@moveleft{%
+ \ltj@restore@globaldefs
+ \edef\ltj@@moveleft@a{%
+ \noexpand\directlua{luatexja.direction.raise_box()}%
+ \ltj@@orig@moveleft\the\ltj@tempdima\noexpand\box\ltj@afbox
+ }\ltj@afterbox\ltj@@moveleft@a}
+
+%%%%\vsplit
+\let\ltj@@orig@vsplit=\vsplit
+\protected\def\vsplit{\directlua{luatexja.direction.vsplit()}}
+%%%% \vcenter
+\let\ltj@@orig@vcenter=\vcenter
+\protected\def\vcenter{\ltj@afterbox\ltj@@vcenter\vbox}
+\protected\def\ltj@@vcenter{%
+ \directlua{luatexja.direction.raise_box()}%
+ \ltj@@orig@vcenter{\box\ltj@afbox}%