fix #37467 (Is it safe to write a whatsit in math mode?)

[luatex-ja/luatexja.git] / src / ltj-direction.lua

diff --git a/src/ltj-direction.lua b/src/ltj-direction.lua
index 9d650f2..f26d9c5 100644 (file)
--- a/src/ltj-direction.lua
+++ b/src/ltj-direction.lua
@@ -174,7 +174,7 @@ do
       local lv = tex_nest.ptr -- must be >= 1
       if not v then
          v = get_dir_count()
-        if abs(tex_nest[lv-1].mode) == ltjs.mmode and v == dir_tate then
+        if abs(tex_nest[lv].mode) == ltjs.mmode and v == dir_tate then
            v = dir_utod
         end
       elseif v=='adj' then
@@ -194,7 +194,7 @@ do
       local lv = tex_nest.ptr
       if not v then
          v,name  = get_dir_count(), nil
-        if lv>=1 and abs(tex_nest[lv-1].mode) == ltjs.mmode and v == dir_tate then
+        if abs(tex_nest[lv].mode) == ltjs.mmode and v == dir_tate then
            v = dir_utod
         end
       elseif v=='adj' then