local getfield = (Dnode ~= node) and Dnode.getfield or function(n, i) return n[i] end
local getid = (Dnode ~= node) and Dnode.getid or function(n) return n.id end
local getsubtype = (Dnode ~= node) and Dnode.getsubtype or function(n) return n.subtype end
+local getlist = (Dnode ~= node) and Dnode.getlist or function(n) return n.head end
-- getlist cannot be used for sub_box nodes. Use instead λp. getfield(p, 'head')
local getchar = (Dnode ~= node) and Dnode.getchar or function(n) return n.char end
local node_traverse = Dnode.traverse
local node_new = Dnode.new
local node_next = (Dnode ~= node) and Dnode.getnext or node.next
+local node_remove = Dnode.remove
local node_free = Dnode.free
local has_attr = Dnode.has_attribute
local set_attr = Dnode.set_attribute
local id_whatsit = node.id('whatsit')
local sid_user = node.subtype('user_defined')
local DIR = luatexja.userid_table.DIR
+local dir_node_auto = luatexja.dir_table.dir_node_auto
local PROCESSED = luatexja.icflag_table.PROCESSED
-- table of mathematical characters
local is_math_letters = {}
+local list_dir
+
+local function conv_vcenter(sb)
+ local h = getfield(sb, 'head');local hd = getlist(h)
+ if getid(hd)==id_whatsit and
+ getsubtype(hd)==sid_user and getfield(hd, 'user_id')==DIR then
+ local d = node_next(hd)
+ if getid(d)==id_vlist and has_attr(d, attr_dir)>=dir_node_auto then
+ node_free(hd); setfield(h, 'head', nil); node_free(h)
+ setfield(sb, 'head', d); h = d
+ end
+ end
+ set_attr(h, attr_icflag, PROCESSED)
+ return sb
+end
local conv_jchar_to_hbox_A
for p in node_traverse(head) do
local pid = getid(p)
if pid == id_simple or pid == id_accent then
- setfield(p, 'nucleus', conv_jchar_to_hbox_A(getfield(p, 'nucleus'), sty))
+ if getsubtype(p)==12 then
+ conv_vcenter(getfield(p, 'nucleus'))
+ else
+ setfield(p, 'nucleus', conv_jchar_to_hbox_A(getfield(p, 'nucleus'), sty))
+ end
setfield(p, 'sub', conv_jchar_to_hbox_A(getfield(p, 'sub'), sty+1))
setfield(p, 'sup', conv_jchar_to_hbox_A(getfield(p, 'sup'), sty+1))
elseif pid == id_choice then
local MJSS = luatexja.stack_table_index.MJSS
local capsule_glyph_math = ltjw.capsule_glyph_math
local is_ucs_in_japanese_char = ltjc.is_ucs_in_japanese_char_direct
-local list_dir
conv_jchar_to_hbox_A =
function (p, sty)