+local null_skip_table = {0, 0, 0}
+-- get kanjiskip
+local get_kanjiskip, kanjiskip_jfm_flag
+local get_kanjiskip_low
+local calc_ja_ja_glue
+do
+ local KANJI_SKIP = luatexja.icflag_table.KANJI_SKIP
+ local KANJI_SKIP_JFM = luatexja.icflag_table.KANJI_SKIP_JFM
+
+ get_kanjiskip_low = function(flag, qm, bn, bp, bh)
+ if flag or (qm.with_kanjiskip and (bn or bp or bh)) then
+ if kanjiskip_jfm_flag then
+ local g = node_new(id_glue);
+ local bk = qm.kanjiskip or null_skip_table
+ setglue(g, bn and (bn*bk[1]) or 0,
+ bp and (bp*bk[2]) or 0,
+ bh and (bh*bk[3]) or 0, 0, 0)
+ set_attr(g, attr_icflag, KANJI_SKIP_JFM)
+ return g
+ elseif flag then
+ return node_copy(kanji_skip)
+ else
+ local g = node_new(id_glue);
+ setglue(g,
+ bn and (bn*getfield(kanji_skip, 'width')) or 0,
+ bp and (bp*getfield(kanji_skip, 'stretch')) or 0,
+ bh and (bh*getfield(kanji_skip, 'shrink')) or 0,
+ 0, 0)
+ set_attr(g, attr_icflag, KANJI_SKIP_JFM)
+ return g
+ end
+ end
+ end
+
+ get_kanjiskip = function()
+ if Np.auto_kspc==0 or Nq.auto_kspc==0 then
+ return nil
+ elseif Np.auto_kspc or Nq.auto_kspc then
+ local pm, qm = Np.met, Nq.met
+ if (pm.char_type==qm.char_type) and (qm.var==pm.var) then
+ return get_kanjiskip_low(true, qm, 1, 1, 1)
+ else
+ local gb = get_kanjiskip_low(true, qm, 1, 1, 1)
+ local ga = get_kanjiskip_low(true, pm, 1, 1, 1)
+ return calc_ja_ja_aux(gb, ga, 0, 1)
+ end
+ else
+ local g = node_new(id_glue)
+ set_attr(g, attr_icflag, kanjiskip_jfm_flag and KANJI_SKIP_JFM or KANJI_SKIP)
+ return g
+ end
+ end
+
+ calc_ja_ja_glue = function ()