local PROCESSED_BEGIN_FLAG = luatexja.icflag_table.PROCESSED_BEGIN_FLAG
local dir_tate = luatexja.dir_table.dir_tate
-local lang_ja = token.create('ltj@@japanese')[2]
+local lang_ja = luatexja.lang_ja
+
------------------------------------------------------------------------
-- MAIN PROCESS STEP 1: replace fonts
------------------------------------------------------------------------