local STCK = luatexja.userid_table.STCK
local fastcopy = table.fastcopy
local setcount = tex.setcount
-local scan_int, scan_keyword = luatexja.token.scan_int, luatexja.token.scan_keyword
+local scan_int, scan_keyword = token.scan_int, token.scan_keyword
hmode = 0 -- dummy
charprop_stack_table={};