fix #36570

[luatex-ja/luatexja.git] / src / luatexja-core.sty

diff --git a/src/luatexja-core.sty b/src/luatexja-core.sty
index 0d01f10..6df5aeb 100644 (file)
--- a/src/luatexja-core.sty
+++ b/src/luatexja-core.sty
@@ -705,6 +705,9 @@
     \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}