+
+\ifdefined\newluafunction
+ \newluafunction\ltj@@adjust@baseline@inner
+ \begingroup\catcode`\~=12
+ \directlua{%
+ local nulltable = {}
+ local t = lua.get_functions_table()
+ local getfont, dir_tate = font.getfont, luatexja.dir_table.dir_tate
+ local fmt, get_attr = luatexja.jfont.font_metric_table, tex.getattribute
+ local setdimen, set_attr = tex.setdimen, tex.setattribute
+ local dir = luatexja.unary_pars.direction
+ t[\the\ltj@@adjust@baseline@inner] = function()
+ local ft = fmt[get_attr('ltj@curtfnt')] or nulltable
+ ft = ft and ft.char_type or nulltable
+ local fk = ft and ft[0] or nulltable
+ local ht, dp, wd = fk.height or 0, fk.depth or 0,
+ fk.width or ft.zw or 0
+ local fm
+ = ((getfont(font.current()) or nulltable)
+ .characters or nulltable)[77] or nulltable %% 'M'
+ set_attr('ltj@tablshift',
+ 0.5*((fm.height or 0)- (fm.depth or 0) - ht+ dp))
+ if dir() ~= dir_tate then
+ ft = fmt[get_attr('ltj@curjfnt')] or nulltable
+ ft = ft and ft.char_type or nulltable
+ fk = ft and ft[0] or nulltable
+ ht, dp, wd = fk.height or 0, fk.depth or 0,
+ fk.width or ft.zw or 0
+ end
+ setdimen('cht', ht); setdimen('cdp', dp)
+ setdimen('cwd', wd); setdimen('chs', wd)
+ setdimen('cHT', ht+dp)
+ end
+ }\endgroup
+ \def\adjustbaseline{\luafunction\ltj@@adjust@baseline@inner
+ \cvs\normalbaselineskip}
+\else
+ \newbox\adjust@box
+ \newbox\adjust@box@aux
+ \newdimen\adjust@dimen
+ \def\adjustbaseline{%
+ \setbox\adjust@box\hbox{%
+ \ltj@ykblshift\z@\ltj@tkblshift\z@ 漢}%