-- -- ltj-jfmglue.lua -- luatexbase.provides_module({ name = 'luatexja.jfmglue', date = '2022-08-29', description = 'Insertion process of JFM glues, [x]kanjiskip and others', }) luatexja.jfmglue = luatexja.jfmglue or {} luatexja.load_module 'base'; local ltjb = luatexja.base luatexja.load_module 'stack'; local ltjs = luatexja.stack luatexja.load_module 'jfont'; local ltjf = luatexja.jfont luatexja.load_module 'direction'; local ltjd = luatexja.direction luatexja.load_module 'setwidth'; local ltjw = luatexja.setwidth luatexja.load_module 'lotf_aux'; local ltju = luatexja.lotf_aux local pairs = pairs --local to_node = node.direct.tonode --local to_direct = node.direct.todirect local getfield = node.direct.getfield local getid = node.direct.getid local getfont = node.direct.getfont local getlist = node.direct.getlist local getchar = node.direct.getchar local getglue = node.direct.getglue local getsubtype = node.direct.getsubtype local getshift = node.direct.getshift local getwidth = node.direct.getwidth local getdepth = node.direct.getdepth local getpenalty = node.direct.getpenalty local setfield = node.direct.setfield local setglue = node.direct.setglue local setshift = node.direct.setshift local if_lang_ja do local lang_ja = luatexja.lang_ja local getlang = node.direct.getlang -- glyph with font number 0 (\nullfont) is always considered an ALchar node if_lang_ja = function (n) return (getlang(n)==lang_ja)and(getfont(n)~=0) end end local setpenalty = node.direct.setpenalty local setkern = node.direct.setkern local call_callback = luatexbase.call_callback local get_attr = node.direct.get_attribute local set_attr = node.direct.set_attribute local insert_before = node.direct.insert_before local insert_after = node.direct.insert_after local node_next = node.direct.getnext local ltjd_make_dir_whatsit = ltjd.make_dir_whatsit local ltjf_font_metric_table = ltjf.font_metric_table local ltjf_find_char_class = ltjf.find_char_class local node_new = luatexja.dnode_new local node_copy = node.direct.copy local node_tail = node.direct.tail local node_free = node.direct.flush_node or node.direct.free local node_remove = node.direct.remove local node_inherit_attr = luatexja.node_inherit_attr local id_glyph = node.id 'glyph' local id_hlist = node.id 'hlist' local id_vlist = node.id 'vlist' local id_rule = node.id 'rule' local id_ins = node.id 'ins' local id_mark = node.id 'mark' local id_adjust = node.id 'adjust' local id_disc = node.id 'disc' local id_whatsit = node.id 'whatsit' local id_math = node.id 'math' local id_glue = node.id 'glue' local id_kern = node.id 'kern' local id_penalty = node.id 'penalty' local id_jglyph = 512 -- Japanese character local id_box_like = 256 -- vbox, shifted hbox local id_pbox = 257 -- already processed nodes (by \unhbox) local id_pbox_w = 258 -- cluster which consists of a whatsit local sid_user = node.subtype 'user_defined' local ITALIC = luatexja.icflag_table.ITALIC local PACKED = luatexja.icflag_table.PACKED local KINSOKU = luatexja.icflag_table.KINSOKU local FROM_JFM = luatexja.icflag_table.FROM_JFM local PROCESSED = luatexja.icflag_table.PROCESSED local IC_PROCESSED = luatexja.icflag_table.IC_PROCESSED local BOXBDD = luatexja.icflag_table.BOXBDD local SPECIAL_JAGLUE = luatexja.icflag_table.SPECIAL_JAGLUE local PROCESSED_BEGIN_FLAG = luatexja.icflag_table.PROCESSED_BEGIN_FLAG local attr_icflag = luatexbase.attributes['ltj@icflag'] local kanji_skip local xkanji_skip local table_current_stack local list_dir local capsule_glyph local tex_dir local attr_ablshift local set_np_xspc_jachar, set_np_xspc_alchar local set_np_xspc_jachar_hbox local ltjs_orig_char_table = ltjs.orig_char_table local function get_attr_icflag(p) return (get_attr(p, attr_icflag) or 0)%PROCESSED_BEGIN_FLAG end -------------------- Helper functions -- This function is called only for acquiring `special' characters. local function fast_find_char_class(c,m) return m.chars[c] or 0 end -- 文字クラスの決定 local slow_find_char_class, skip_table_to_glue do local start_time_measure = ltjb.start_time_measure local stop_time_measure = ltjb.stop_time_measure local fast_get_stack_skip = ltjs.fast_get_stack_skip function slow_find_char_class (c, m, oc) local cls = ltjf_find_char_class(oc, m) if oc~=c and c and cls==0 then return ltjf_find_char_class(c, m) else return cls end end function skip_table_to_glue(n) local g, st = node_new(id_glue), fast_get_stack_skip(n) setglue(g, st[1], st[2], st[3], st[4], st[5]) return g, (st[1]==1073741823) end end -- penalty 値の計算 local add_penalty do function add_penalty(p,e) local pp = getpenalty(p) if (pp>-10000) and (pp<10000) then if e>=10000 then setpenalty(p, 10000) elseif e<=-10000 then setpenalty(p, -10000) else pp = pp + e if pp>=10000 then setpenalty(p, 10000) elseif pp<=-10000 then setpenalty(p, -10000) else setpenalty(p, pp) end end end end end -- 「異なる JFM」の間の調整方法 luatexja.jfmglue.diffmet_rule = math.two_paverage function math.two_add(a,b) return a+b end function math.two_average(a,b) return (a+b)*0.5 end function math.two_paverage(a,b) return (a+b)/2 end function math.two_pleft(a,b) return a end function math.two_pright(a,b) return b end local head -- the head of current list local Np, Nq, Bp local widow_Bp, widow_Np -- \jcharwidowpenalty 挿入位置管理用 local non_ihb_flag -- JFM グルー挿入抑止用 flag -- false: \inhibitglue 指定時 true: それ以外 -------------------- hlist 内の文字の検索 local first_char, last_char, find_first_char local check_box_high do local ltjd_glyph_from_packed = ltjd.glyph_from_packed local function check_box(box_ptr, box_end) local p = box_ptr; local found_visible_node = false if not p then find_first_char = false; last_char = nil return true end while p and p~=box_end do local pid = getid(p) if pid==id_kern and getsubtype(p)==2 then p = node_next(node_next(node_next(p))); pid = getid(p) -- p must be glyph_node end if pid==id_glyph then repeat if find_first_char then first_char = p; find_first_char = false end last_char = p; found_visible_node = true; p=node_next(p) if (not p) or p==box_end then return found_visible_node end until getid(p)~=id_glyph pid = getid(p) -- p must be non-nil end if pid==id_kern then local pa = get_attr_icflag(p) if pa==IC_PROCESSED then -- do nothing elseif getsubtype(p)==2 then p = node_next(node_next(p)); -- Note that another node_next will be executed outside this if-statement. else found_visible_node = true find_first_char = false; last_char = nil end elseif pid==id_hlist then if PACKED == get_attr_icflag(p) then local s = ltjd_glyph_from_packed(p) if find_first_char then first_char = s; find_first_char = false end last_char = s; found_visible_node = true else if getshift(p)==0 then last_char = nil if check_box(getlist(p), nil) then found_visible_node = true end find_first_char = false else find_first_char = false; last_char = nil end end elseif pid==id_math then if find_first_char then first_char = p; find_first_char = false end last_char = p; found_visible_node = true elseif pid==id_rule and get_attr_icflag(p)==PACKED then -- do nothing elseif not (pid==id_ins or pid==id_mark or pid==id_adjust or pid==id_whatsit or pid==id_penalty) then found_visible_node = true find_first_char = false; last_char = nil end p = node_next(p) end return found_visible_node end check_box_high = function (Nx, box_ptr, box_end) first_char = nil; last_char = nil; find_first_char = true if check_box(box_ptr, box_end) then local first_char = first_char if first_char then if getid(first_char)==id_glyph then if if_lang_ja(first_char) then set_np_xspc_jachar_hbox(Nx, first_char) else set_np_xspc_alchar(Nx, getchar(first_char),first_char, 1) end else -- math_node set_np_xspc_alchar(Nx, -1,first_char) end end end return last_char end end -------------------- Np の計算と情報取得 luatexbase.create_callback("luatexja.jfmglue.whatsit_getinfo", "data", function (Np, lp, Nq) if Np.nuc then return Np else return Np -- your code end end) luatexbase.create_callback("luatexja.jfmglue.whatsit_after", "data", function (stat, Nq, Np) return false end) luatexbase.create_callback("luatexja.jfmglue.whatsit_last_minute", "data", function (stat, Nq, Np) return false end) -- calc next Np local calc_np do -- 001 ----------------------------------------------- local traverse = node.direct.traverse local function check_next_ickern(lp) local lx = Np.nuc while lp and getid(lp) == id_kern and ( getsubtype(lp)==0 or getsubtype(lp)==3 or ITALIC == get_attr_icflag(lp)) do set_attr(lp, attr_icflag, IC_PROCESSED) lx, lp = lp, node_next(lp) end Np.last = lx; return lp end local function calc_np_pbox(lp, last) local first, nc = (not Np.first), nil --local lpa = get_attr_icflag(lp)==PACKED and PACKED or KINSOKU -- KINSOKU: dummy local lpa = get_attr_icflag(lp) Np.first = Np.first or lp; Np.id = id_pbox set_attr(lp, attr_icflag, get_attr_icflag(lp)) while lp ~=last and (lpa>=PACKED) and (lpa0) and (getdepth(lp) + y_adjust) or 0 setfield(lp, 'yoffset', getfield(lp, 'yoffset') - y_adjust); lp = node_next(lp) local lx=lp while lx do local lai = get_attr_icflag(lx) if lx==last or lai>=PACKED then break else local lid = getid(lx) if lid==id_glyph and not if_lang_ja(lx) then -- 欧文文字 last_glyph = lx; set_attr(lx, attr_icflag, PROCESSED); Np.last = lx y_adjust = get_attr(lx,attr_ablshift) or 0 node_depth = max(getdepth(lx) + min(y_adjust, 0), node_depth) adj_depth = (y_adjust>0) and max(getdepth(lx) + y_adjust, adj_depth) or adj_depth setfield(lx, 'yoffset', getfield(lx, 'yoffset') - y_adjust); lx = node_next(lx) elseif lid==id_kern then local ls = getsubtype(lx) if ls==2 then -- アクセント用の kern set_attr(lx, attr_icflag, PROCESSED) lx = node_next(lx) -- lx: アクセント本体 if getid(lx)==id_glyph then setfield(lx, 'yoffset', getfield(lx, 'yoffset') - (get_attr(lx,attr_ablshift) or 0)) else -- アクセントは上下にシフトされている setshift(lx, getshift(lx) + (get_attr(lx,attr_ablshift) or 0)) end set_attr(lx, attr_icflag, PROCESSED) lx = node_next(lx); set_attr(lx, attr_icflag, PROCESSED) lx = node_next(lx); set_attr(lx, attr_icflag, PROCESSED) elseif ls==0 then Np.last = lx; lx = node_next(lx) elseif (ls==3) or (lai==ITALIC) then Np.last = lx; set_attr(lx, attr_icflag, IC_PROCESSED); lx = node_next(lx) else break end else break end end end lp=lx local r if adj_depth>node_depth then r = node_new(id_rule,3,first_glyph) setwhd(r, 0, 0, adj_depth); setdir(r, tex_dir) set_attr(r, attr_icflag, PROCESSED) end if last_glyph then Np.last_char = last_glyph if r then insert_after(head, first_glyph, r) end else local npn = Np.nuc Np.last_char = npn if r then local nf, nc = getfont(npn), getchar(npn) local ct = (font_getfont(nf) or font.fonts[nf] ).characters[nc] if not ct then -- variation selector node_free(r) elseif (ct.left_protruding or 0) == 0 then head = insert_before(head, npn, r) Np.first = acc_flag and Np.first or ((Np.first==npn) and r or npn) elseif (ct.right_protruding or 0) == 0 then insert_after(head, npn, r); Np.last, lp = r, r else ltjb.package_warning_no_line( 'luatexja', 'Check depth of glyph node ' .. tostring(npn) .. '(font=' .. nf .. ', char=' .. nc .. '), because its \\lpcode is ' .. tostring(ct.left_protruding) .. ' and its \\rpcode is ' .. tostring(ct.right_protruding) ); node_free(r) end end end return true, lp end end end -- 002 --------------------------------------- local calc_np_auxtable do -- 002 --------------------------------------- local ltjw_apply_ashift_math = ltjw.apply_ashift_math local ltjw_apply_ashift_disc = ltjw.apply_ashift_disc local node_end_of_math = node.direct.end_of_math local dir_tate = luatexja.dir_table.dir_tate local sid_start_link = node.subtype 'pdf_start_link' local sid_start_thread = node.subtype 'pdf_start_thread' local sid_end_link = node.subtype 'pdf_end_link' local sid_end_thread = node.subtype 'pdf_end_thread' local getvalue = node.direct.getdata calc_np_auxtable = { [id_glyph] = calc_np_aux_glyph_common, [id_hlist] = function(lp) local op, flag head, lp, op, flag = ltjd_make_dir_whatsit(head, lp, list_dir, 'jfm hlist') set_attr(op, attr_icflag, PROCESSED) Np.first = Np.first or op; Np.last = op; Np.nuc = op; if (flag or getshift(op)~=0) then Np.id = id_box_like else Np.id = id_hlist Np.last_char = check_box_high(Np, getlist(op), nil) end return true, lp end, [id_vlist] = function(lp) local op head, lp, op = ltjd_make_dir_whatsit(head, lp, list_dir, 'jfm:' .. getid(lp)) Np.first = Np.first or op; Np.last = op; Np.nuc = op; Np.id = id_box_like; return true, lp end, box_like = function(lp) Np.first = Np.first or lp; Np.last = lp; Np.nuc = lp; Np.id = id_box_like; return true, node_next(lp) end, [id_whatsit] = function(lp) local lps = getsubtype(lp) if lps==sid_user then if getfield(lp, 'user_id')==luatexja.userid_table.IHB then local lq = node_next(lp); head = node_remove(head, lp); node_free(lp); non_ihb_flag = getvalue(lp)~=1 return false, lq; elseif getfield(lp, 'user_id')==luatexja.userid_table.JA_AL_BDD then local lq = node_next(lp); head = node_remove(head, lp); node_free(lp) return false, lq; else set_attr(lp, attr_icflag, PROCESSED) call_callback("luatexja.jfmglue.whatsit_getinfo", Np, lp, Nq) if Np.nuc then Np.id = id_pbox_w; Np.first = Np.nuc; Np.last = Np.nuc; return true, node_next(lp) else return false, node_next(lp) end end else -- we do special treatment for these whatsit nodes. if lps == sid_start_link or lps == sid_start_thread then Np.first = lp elseif lps == sid_end_link or lps == sid_end_thread then Np.first, Nq.last = nil, lp; end set_attr(lp, attr_icflag, PROCESSED) return false, node_next(lp) end end, [id_math] = function(lp) Np.first, Np.nuc = (Np.first or lp), lp; set_attr(lp, attr_icflag, PROCESSED) set_np_xspc_alchar(Np, -1, lp) local end_math = node_end_of_math(lp) ltjw_apply_ashift_math(lp, end_math, attr_ablshift) set_attr(end_math, attr_icflag, PROCESSED) Np.last, Np.id = end_math, id_math; return true, node_next(end_math); end, [id_glue] = function(lp) Np.first, Np.nuc, Np.last = (Np.first or lp), lp, lp; Np.id = getid(lp); local f = call_callback("luatexja.jfmglue.special_jaglue", lp) if f then set_attr(lp, attr_icflag, PROCESSED) end return true, node_next(lp) end, [id_disc] = function(lp) Np.first, Np.nuc, Np.last = (Np.first or lp), lp, lp; Np.id = getid(lp); set_attr(lp, attr_icflag, PROCESSED) ltjw_apply_ashift_disc(lp, (list_dir==dir_tate), tex_dir) Np.last_char = check_box_high(Np, getfield(lp, 'replace'), nil) return true, node_next(lp) end, [id_kern] = function(lp) if getsubtype(lp)==2 then Np.first = Np.first or lp set_attr(lp, attr_icflag, PROCESSED); lp = node_next(lp) if getid(lp)==id_glyph then -- アクセント本体 setfield(lp, 'yoffset', getfield(lp, 'yoffset') - (get_attr(lp,attr_ablshift) or 0)) else -- アクセントは上下にシフトされている setshift(lp, getshift(lp) + (get_attr(lp,attr_ablshift) or 0)) end set_attr(lp, attr_icflag, PROCESSED); lp = node_next(lp) set_attr(lp, attr_icflag, PROCESSED); lp = node_next(lp) set_attr(lp, attr_icflag, PROCESSED); return calc_np_aux_glyph_common(lp, true) else Np.first = Np.first or lp Np.id = id_kern; set_attr(lp, attr_icflag, PROCESSED) Np.last = lp; return true, node_next(lp) end end, [id_penalty] = function(lp) Bp[#Bp+1] = lp; set_attr(lp, attr_icflag, PROCESSED) return false, node_next(lp) end, } end -- 002 --------------------------------------- calc_np_auxtable[id_rule] = calc_np_auxtable.box_like calc_np_auxtable[15] = calc_np_auxtable.box_like local function calc_np_aux_skip (lp) set_attr(lp, attr_icflag, PROCESSED) return false, node_next(lp) end function calc_np(last, lp) local k -- We assume lp = node_next(Np.last) if Nq and Nq.id==id_pbox_w then call_callback("luatexja.jfmglue.whatsit_last_minute", false, Nq, Np) end Np, Nq, non_ihb_flag = Nq, Np, true -- We clear `predefined' entries of Np before pairs() loop, -- because using only pairs() loop is slower. Np.post, Np.pre, Np.xspc, Np.gk = nil, nil, nil, nil Np.first, Np.id, Np.last, Np.met, Np.class= nil, nil, nil, nil Np.auto_kspc, Np.auto_xspc, Np.char, Np.nuc = nil, nil, nil, nil -- auto_kspc, auto_xspc: normally true/false, -- but the number 0 when Np is ''the beginning of the box/paragraph''. for k in pairs(Np) do Np[k] = nil end for k = 1,#Bp do Bp[k] = nil end while lp ~= last do local lpa = get_attr(lp, attr_icflag) or 0 -- unbox 由来ノードの検出 if (lpa>=PACKED) and (lpa%PROCESSED_BEGIN_FLAG<=BOXBDD) then if lpa%PROCESSED_BEGIN_FLAG == BOXBDD then local lq = node_next(lp) head = node_remove(head, lp); node_free(lp); lp = lq else return calc_np_pbox(lp, last) end -- id_pbox else k, lp = (calc_np_auxtable[getid(lp)] or calc_np_aux_skip)(lp) if k then return lp end end end Np=nil end end -- 001 ----------------------------------------------- -- extract informations from Np -- We think that "Np is a Japanese character" if Np.met~=nil, -- "Np is an alphabetic character" if Np.pre~=nil, -- "Np is not a character" otherwise. local after_hlist = nil -- global local after_alchar, extract_np do local PRE = luatexja.stack_table_index.PRE local POST = luatexja.stack_table_index.POST local KCAT = luatexja.stack_table_index.KCAT local XSP = luatexja.stack_table_index.XSP local dir_tate = luatexja.dir_table.dir_tate -- 和文文字のデータを取得 local has_attr = node.direct.has_attribute local attr_jchar_class = luatexbase.attributes['ltj@charclass'] local attr_jchar_code = luatexbase.attributes['ltj@charcode'] local attr_autospc = luatexbase.attributes['ltj@autospc'] local attr_autoxspc = luatexbase.attributes['ltj@autoxspc'] local getcomponents = node.direct.getcomponents --local ltjf_get_vert_glyph = ltjf.get_vert_glyph function set_np_xspc_jachar(Nx, x) local m = ltjf_font_metric_table[getfont(x)] local c, c_glyph = (not getcomponents(x) and ltjs_orig_char_table[x]), getchar(x) if c and c~=c_glyph then set_attr(x, attr_jchar_code, c) end c = c or c_glyph local cls = slow_find_char_class(c, m, c_glyph) Nx.met, Nx.class, Nx.char = m, cls, c; local mc = m.char_type; Nx.char_type = mc if cls~=0 then set_attr(x, attr_jchar_class, cls) end Nx.pre = table_current_stack[PRE + c] or 0 Nx.post = table_current_stack[POST + c] or 0 Nx.xspc = table_current_stack[XSP + c] or 3 Nx.kcat = table_current_stack[KCAT + c] or 0 Nx.auto_kspc, Nx.auto_xspc = not has_attr(x, attr_autospc, 0), not has_attr(x, attr_autoxspc, 0) return m, mc, cls end function set_np_xspc_jachar_hbox(Nx, x) local m = ltjf_font_metric_table[getfont(x)] local c = get_attr(x, attr_jchar_code) or getchar(x) Nx.met, Nx.char = m, c; Nx.class = get_attr(x, attr_jchar_class) or 0; local mc = m.char_type; Nx.char_type = mc Nx.pre = table_current_stack[PRE + c] or 0 Nx.post = table_current_stack[POST + c] or 0 Nx.xspc = table_current_stack[XSP + c] or 3 Nx.kcat = table_current_stack[KCAT + c] or 0 Nx.auto_kspc, Nx.auto_xspc = not has_attr(x, attr_autospc, 0), not has_attr(x, attr_autoxspc, 0) end -- 欧文文字のデータを取得 local floor = math.floor local nullfunc = function(n) return n end function set_np_xspc_alchar(Nx, c,x, lig) if c~=-1 then local f = (lig ==1) and nullfunc or node_tail local xc, xs = getcomponents(x), getsubtype(x) while xc and xs and xs%4>=2 do x = f(xc); if getid(x)==id_disc then x, xc, xs = nil, getfield(x,'replace'), 2 else xc, xs = getcomponents(x), getsubtype(x) end end c = x and getchar(x) or c Nx.pre = table_current_stack[PRE + c] or 0 Nx.post = table_current_stack[POST + c] or 0 else Nx.pre, Nx.post = 0, 0 end Nx.met = nil Nx.xspc = table_current_stack[XSP + c] or 3 Nx.auto_xspc = not has_attr(x, attr_autoxspc, 0) end local set_np_xspc_alchar = set_np_xspc_alchar -- change the information for the next loop -- (will be done if Nx is an alphabetic character or a hlist) after_hlist = function (Nx) local s = Nx.last_char if s then if getid(s)==id_glyph then if if_lang_ja(s) then set_np_xspc_jachar_hbox(Nx, s) else set_np_xspc_alchar(Nx, getchar(s), s, 2) end else set_np_xspc_alchar(Nx, -1, s) end else Nx.pre, Nx.met = nil, nil end end after_alchar = function (Nx) local x = Nx.last_char return set_np_xspc_alchar(Nx, getchar(x), x, 2) end end -------------------- 最下層の処理 luatexbase.create_callback('luatexja.adjust_jfmglue', 'simple', function(n) return n end) -- change penalties (or create a new penalty, if needed) local function handle_penalty_normal(post, pre, g) call_callback('luatexja.adjust_jfmglue', head, Nq, Np, Bp) local a = (pre or 0) + (post or 0) if #Bp == 0 then if (a~=0 and not(g and getid(g)==id_kern)) then local p = node_new(id_penalty, nil, Nq.nuc, Np.nuc) if a<-10000 then a = -10000 elseif a>10000 then a = 10000 end setpenalty(p, a); head = insert_before(head, Np.first, p) Bp[1]=p; set_attr(p, attr_icflag, KINSOKU) end else for _, v in pairs(Bp) do add_penalty(v,a) end end end local function handle_penalty_always(post, pre, g) call_callback('luatexja.adjust_jfmglue', head, Nq, Np, Bp) local a = (pre or 0) + (post or 0) if #Bp == 0 then if not (g and getid(g)==id_glue) or a~=0 then local p = node_new(id_penalty, nil, Nq.nuc, Np.nuc) if a<-10000 then a = -10000 elseif a>10000 then a = 10000 end setpenalty(p, a); head = insert_before(head, Np.first, p) Bp[1]=p; set_attr(p, attr_icflag, KINSOKU) end else for _, v in pairs(Bp) do add_penalty(v,a) end end end local function handle_penalty_suppress(post, pre, g) call_callback('luatexja.adjust_jfmglue', head, Nq, Np, Bp) if #Bp == 0 then if g and getid(g)==id_glue then local p = node_new(id_penalty, nil, Nq.nuc, Np.nuc) setpenalty(p, 10000); head = insert_before(head, Np.first, p) Bp[1]=p; set_attr(p, attr_icflag, KINSOKU) end else local a = (pre or 0) + (post or 0) for _, v in pairs(Bp) do add_penalty(v,a) end end end local function handle_penalty_jwp() local a = table_current_stack[luatexja.stack_table_index.JWP] if #widow_Bp == 0 then if a~=0 then local p = node_new(id_penalty, widow_Np.nuc) if a<-10000 then a = -10000 elseif a>10000 then a = 10000 end setpenalty(p, a); head = insert_before(head, widow_Np.first, p) widow_Bp[1]=p; set_attr(p, attr_icflag, KINSOKU) end else for _, v in pairs(widow_Bp) do add_penalty(v,a) end end end -- 和文文字間の JFM glue を node 化 local function new_jfm_glue(mc, bc, ac) -- bc, ac: char classes local g = mc[bc][ac] if g then if g[1] then local k = node_new(id_kern, 1); setkern(k, g[1]) set_attr(k, attr_icflag, FROM_JFM) return k, g.ratio, false, false, false else local f = node_new(id_glue) set_attr(f, attr_icflag, g.priority) setglue(f, g[2], g[3], g[4]) return f, g.ratio, g.kanjiskip_natural, g.kanjiskip_stretch, g.kanjiskip_shrink end end return false, 0 end -- Nq.last (kern w) .... (glue/kern g) Np.first local function real_insert(g) if g then head, Np.first = insert_before(head, Np.first, node_inherit_attr(g, Nq.nuc, Np.nuc)) local ngk = Np.gk if not ngk then Np.gk = g elseif type(ngk)=="table" then ngk[#ngk+1]=g else Np.gk = { ngk, g } end end end -------------------- 和文文字間空白量の決定 local calc_ja_ja_aux do local round = tex.round local bg_ag = 2*id_glue - id_glue local bg_ak = 2*id_glue - id_kern local bk_ag = 2*id_kern - id_glue local bk_ak = 2*id_kern - id_kern local getkern = node.direct.getkern local function blend_diffmet(b, a, rb, ra) return round(luatexja.jfmglue.diffmet_rule((1-rb)*b+rb*a, (1-ra)*b+ra*a)) end local blend_diffmet_inf do local abs, log, log264, floor = math.abs, math.log, math.log(2)*64, math.floor blend_diffmet_inf = function (b, a, bo, ao, rb, ra) local nb, na = (bo and b*2.0^(64*bo) or 0), (ao and a*2.0^(64*ao) or 0) local r = luatexja.jfmglue.diffmet_rule((1-rb)*nb+rb*na, (1-ra)*nb+ra*na) local ro = (r~=0) and floor(log(abs(r))/log264+0.0625) or 0 return round(r/2.^(64*ro)), ro end end calc_ja_ja_aux = function (gb, ga, db, da) if luatexja.jfmglue.diffmet_rule ~= math.two_pleft and diffmet_rule ~= math.two_pright and luatexja.jfmglue.diffmet_rule ~= math.two_paverage then db, da = 0, 1 end if not gb then if ga then gb = node_new(id_kern, 1); setkern(gb, 0) else return nil end elseif not ga then ga = node_new(id_kern, 1); setkern(ga, 0) end local gbw, gaw, gbst, gast, gbsto, gasto, gbsh, gash, gbsho, gasho if getid(gb)==id_glue then gbw, gbst, gbsh, gbsto, gbsho = getglue(gb) else gbw = getkern(gb) end if getid(ga)==id_glue then gaw, gast, gash, gasto, gasho = getglue(ga) else gaw = getkern(ga) end if not (gbst or gast) then -- 両方とも kern setkern(gb, blend_diffmet(gbw, gaw, db, da)) node_free(ga); return gb else local gr = gb if not gbst then gr = ga; node_free(gb) else node_free(ga) end gbw = blend_diffmet(gbw or 0, gaw or 0, db, da) -- 結果の自然長 gbst, gbsto = blend_diffmet_inf(gbst, gast, gbsto, gasto, db, da) -- 伸び gbsh, gbsho = blend_diffmet_inf(-(gbsh or 0), -(gash or 0), gbsho, gasho, db, da) -- -(縮み) setglue(gr, gbw, gbst, -gbsh, gbsto, gbsho) return gr end end end 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) -- flag = false: kanjiskip そのもの(パラメータ or JFM) -- ノード kanji_skip のコピーで良い場合は nil が帰る -- flag = true: JFM グルーに付随する kanjiskip 自然長/伸び/縮み分 if 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 local g = node_new(id_glue) local st = bp and (bp*getfield(kanji_skip, 'stretch')) or 0 local sh = bh and (bh*getfield(kanji_skip, 'shrink')) or 0 setglue(g, bn and (bn*getwidth(kanji_skip)) or 0, st, sh, (st==0) and 0 or getfield(kanji_skip, 'stretch_order'), (sh==0) and 0 or getfield(kanji_skip, 'shrink_order')) 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(false, qm, 1, 1, 1) or node_copy(kanji_skip) else local gb = get_kanjiskip_low(false, qm, 1, 1, 1) if gb then return calc_ja_ja_aux(gb, get_kanjiskip_low(false, pm, 1, 1, 1) or node_copy(kanji_skip), 0, 1) else local ga = get_kanjiskip_low(false, pm, 1, 1, 1) return (ga and calc_ja_ja_aux(node_copy(kanji_skip), ga, 0, 1)) or node_copy(kanji_skip) end 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 () local qm, pm = Nq.met, Np.met local qmc, pmc = qm.char_type, pm.char_type if (qmc==pmc) and (qm.var==pm.var) then local g, _, kn, kp, kh = new_jfm_glue(qmc, Nq.class, Np.class) return g, (Np.auto_kspc or Nq.auto_kspc) and get_kanjiskip_low(true, qm, kn, kp, kh) else local npn, nqn = Np.nuc, Nq.nuc local gb, db, bn, bp, bh = new_jfm_glue(qmc, Nq.class, slow_find_char_class(Np.char, qm, getchar(npn))) local ga, da, an, ap, ah = new_jfm_glue(pmc, slow_find_char_class(Nq.char, pm, getchar(nqn)), Np.class) local g = calc_ja_ja_aux(gb, ga, db, da) local k gb = get_kanjiskip_low(true, qm, bn, bp, bh) ga = get_kanjiskip_low(true, pm, an, ap, ah) k = calc_ja_ja_aux(gb, ga, db, da) return g, k end end end -------------------- 和欧文間空白量の決定 -- get xkanjiskip local get_xkanjiskip, xkanjiskip_jfm_flag local get_xkanjiskip_normal, get_xkanjiskip_jfm local get_xkanjiskip_low do local XKANJI_SKIP = luatexja.icflag_table.XKANJI_SKIP local XKANJI_SKIP_JFM = luatexja.icflag_table.XKANJI_SKIP_JFM get_xkanjiskip_low = function(flag, qm, bn, bp, bh) if flag or (qm.with_kanjiskip and (bn or bp or bh)) then if xkanjiskip_jfm_flag then local g = node_new(id_glue); local bk = qm.xkanjiskip or null_skip_table setglue(g, bn and bk[1] or 0, bp and bk[2] or 0, bh and bk[3] or 0, 0, 0) set_attr(g, attr_icflag, XKANJI_SKIP_JFM) return g elseif flag then return node_copy(xkanji_skip) else local g = node_new(id_glue) local w, st, sh, sto, sho = getglue(xkanji_skip) setglue(g, bn and (bn*w) or 0, bp and (bp*st) or 0, bh and (bh*sh) or 0, bp and sto or 0, bh and sho or 0) set_attr(g, attr_icflag, XKANJI_SKIP_JFM) return g end end end get_xkanjiskip = function(Nn) if Np.auto_xspc==0 or Nq.auto_xspc==0 then return nil elseif (Nq.xspc>=2) and (Np.xspc%2==1) and (Nq.auto_xspc or Np.auto_xspc) then return get_xkanjiskip_low(true, Nn.met, 1, 1, 1) else local g = node_new(id_glue) set_attr(g, attr_icflag, xkanjiskip_jfm_flag and XKANJI_SKIP_JFM or XKANJI_SKIP) return g end end end -------------------- 隣接した「塊」間の処理 local function combine_spc(name) return (Np[name] or Nq[name]) and ((Np[name]~=0) and (Nq[name]~=0)) end -- NA, NB: alchar or math local function get_NA_skip() local pm = Np.met local qclass = fast_find_char_class( (Nq.id == id_math and -1 or (Nq.xspc>=2 and 'alchar' or 'nox_alchar')), pm) local g, _, kn, kp, kh = new_jfm_glue(pm.char_type, qclass, Np.class) local k = g and (Nq.xspc>=2) and (Np.xspc%2==1) and combine_spc 'auto_xspc' and get_kanjiskip_low(true, pm, kn, kp, kh) return g, k end local function get_NB_skip() local qm = Nq.met local pclass = fast_find_char_class( (Np.id == id_math and -1 or (Np.xspc%2==1 and 'alchar' or 'nox_alchar')), qm) local g, _, kn, kp, kh = new_jfm_glue(qm.char_type, Nq.class, pclass) local k = g and (Nq.xspc>=2) and (Np.xspc%2==1) and combine_spc 'auto_xspc' and get_kanjiskip_low(true, qm, kn, kp, kh) return g, k end local function get_OA_skip(insert_ksp) local pm = Np.met local g, _, kn, kp, kh = new_jfm_glue( pm.char_type, fast_find_char_class( (((Nq.id==id_glue)or(Nq.id==id_kern)) and 'glue' or 'jcharbdd'), pm), Np.class) local k if insert_ksp then k = (combine_spc 'auto_kspc') and get_kanjiskip_low(true, pm, kn, kp, kh) end return g, k end local function get_OB_skip(insert_ksp) local qm = Nq.met local g, _, kn, kp, kh = new_jfm_glue( qm.char_type, Nq.class, fast_find_char_class( (((Np.id==id_glue)or(Np.id==id_kern)) and 'glue' or 'jcharbdd'), qm)) local k if insert_ksp then k = (combine_spc 'auto_kspc') and get_kanjiskip_low(true, qm, kn, kp, kh) end return g, k end -- (anything) .. jachar local function handle_np_jachar(mode) local qid = Nq.id if qid==id_jglyph or ((qid==id_pbox or qid==id_pbox_w) and Nq.met) then local g, k if non_ihb_flag then g, k = calc_ja_ja_glue() end -- M->K if not g then g = get_kanjiskip() end handle_penalty_normal(Nq.post, Np.pre, g); real_insert(g); real_insert(k) elseif Nq.met then -- qid==id_hlist local g, k if non_ihb_flag then g, k = get_OA_skip(true) end -- O_A->K if not g then g = get_kanjiskip() end handle_penalty_normal(0, Np.pre, g); real_insert(g); real_insert(k) elseif Nq.pre then local g, k; if non_ihb_flag then g, k = get_NA_skip() end -- N_A->X if not g then g = get_xkanjiskip(Np) end handle_penalty_normal((qid==id_hlist and 0 or Nq.post), Np.pre, g); real_insert(g); real_insert(k) else local g = non_ihb_flag and (get_OA_skip()) -- O_A if qid==id_glue then handle_penalty_normal(0, Np.pre, g) elseif qid==id_kern then handle_penalty_suppress(0, Np.pre, g) else handle_penalty_always(0, Np.pre, g) end real_insert(g) end if mode and Np.kcat%2~=1 then widow_Np.first, widow_Bp, Bp = Np.first, Bp, widow_Bp end end -- jachar .. (anything) local function handle_nq_jachar() if Np.pre then local g, k; if non_ihb_flag then g, k = get_NB_skip()end -- N_B->X if not g then g = get_xkanjiskip(Nq) end handle_penalty_normal(Nq.post, (Np.id==id_hlist and 0 or Np.pre), g); real_insert(g); real_insert(k) else local g =non_ihb_flag and (get_OB_skip()) -- O_B if Np.id==id_glue then handle_penalty_normal(Nq.post, 0, g) elseif Np.id==id_kern then handle_penalty_suppress(Nq.post, 0, g) else handle_penalty_always(Nq.post, 0, g) end real_insert(g) end end -- (anything) .. (和文文字で始まる hlist) local function handle_np_ja_hlist() local qid = Nq.id if qid==id_jglyph or ((qid==id_pbox or qid == id_pbox_w) and Nq.met) then local g = non_ihb_flag and get_OB_skip(true) or get_kanjiskip() -- O_B->K handle_penalty_normal(Nq.post, 0, g); real_insert(g) elseif Nq.met then -- Nq.id==id_hlist local g = get_kanjiskip() -- K handle_penalty_suppress(0, 0, g); real_insert(g) elseif Nq.pre then local g = get_xkanjiskip(Np) -- X handle_penalty_suppress(0, 0, g); real_insert(g) end end -- (和文文字で終わる hlist) .. (anything) local function handle_nq_ja_hlist() if Np.pre then local g = get_xkanjiskip(Nq) -- X handle_penalty_suppress(0, 0, g); real_insert(g) end end -- Nq が前側のクラスタとなることによる修正 local adjust_nq do local adjust_nq_aux = { [id_glyph] = function() after_alchar(Nq) end, -- after_alchar(Nq) [id_hlist] = function() after_hlist(Nq) end, [id_pbox] = function() after_hlist(Nq) end, [id_disc] = function() after_hlist(Nq) end, [id_glue] = function() call_callback("luatexja.jfmglue.special_jaglue_after", Nq.nuc) end, [id_pbox_w]= function() local hh = call_callback("luatexja.jfmglue.whatsit_after", false, Nq, Np, head) -- hh: new head of false (nott processed) if hh then head = hh end end, } adjust_nq = function() local x = adjust_nq_aux[Nq.id] if x then x() end end end -------------------- 開始・終了時の処理 do local node_prev = node.direct.getprev -- リスト末尾の処理 local function handle_list_tail(mode, last) adjust_nq() if mode then -- the current list is to be line-breaked. -- Insert \jcharwidowpenalty if widow_Np.first then handle_penalty_jwp() end else Np = Nq -- the current list is the contents of a hbox local npi, pm = Np.id, Np.met if npi == id_jglyph or (npi==id_pbox and pm) then local g = new_jfm_glue(pm.char_type, Np.class, fast_find_char_class('boxbdd', pm)) if g then set_attr(g, attr_icflag, BOXBDD) head = insert_after(head, Np.last, g) end end end end -- リスト先頭の処理 local function handle_list_head(par_indented) local npi, pm = Np.id, Np.met if npi == id_jglyph or (npi==id_pbox and pm) then if non_ihb_flag then local g = new_jfm_glue(pm.char_type, fast_find_char_class(par_indented, pm), Np.class) if g then set_attr(g, attr_icflag, BOXBDD) if getid(g)==id_glue and #Bp==0 then local h = node_new(id_penalty, nil, Np.nuc) setpenalty(h, 10000); set_attr(h, attr_icflag, BOXBDD) end head = insert_before(head, Np.first, g) end end end end -- initialize -- return value: (the initial cursor lp), (last node) local init_var do local id_local = node.id 'local_par' local KANJI_SKIP = luatexja.icflag_table.KANJI_SKIP local XKANJI_SKIP = luatexja.icflag_table.XKANJI_SKIP local KSK = luatexja.stack_table_index.KSK local XSK = luatexja.stack_table_index.XSK local dir_yoko = luatexja.dir_table.dir_yoko local dir_tate = luatexja.dir_table.dir_tate local attr_yablshift = luatexbase.attributes['ltj@yablshift'] local attr_tablshift = luatexbase.attributes['ltj@tablshift'] local table_pool = { {}, {}, {first=nil}, { auto_kspc=nil, auto_xspc=nil, char=nil, class=nil, first=nil, id=nil, last=nil, met=nil, nuc=nil, post=nil, pre=nil, xspc=nil, gk=nil }, { auto_kspc=nil, auto_xspc=nil, char=nil, class=nil, first=nil, id=nil, last=nil, met=nil, nuc=nil, post=nil, pre=nil, xspc=nil, gk=nil }, } init_var = function (mode,dir) -- 1073741823: max_dimen Bp, widow_Bp, widow_Np, Np, Nq = table_pool[1], table_pool[2], table_pool[3], table_pool[4], table_pool[5] for i=1,5 do for j,_ in pairs(table_pool[i]) do table_pool[i][j]=nil end end table_current_stack = ltjs.table_current_stack list_dir, tex_dir = (ltjs.list_dir or dir_yoko), (dir or 'TLT') local is_dir_tate = list_dir==dir_tate capsule_glyph = is_dir_tate and ltjw.capsule_glyph_tate or ltjw.capsule_glyph_yoko attr_ablshift = is_dir_tate and attr_tablshift or attr_yablshift local TEMP = node_new(id_glue) -- TEMP is a dummy node, which will be freed at the end of the callback. -- Without this node, set_attr(kanji_skip, ...) somehow creates an "orphaned" attribute list. do kanji_skip, kanjiskip_jfm_flag = skip_table_to_glue(KSK) set_attr(kanji_skip, attr_icflag, KANJI_SKIP) end do xkanji_skip, xkanjiskip_jfm_flag = skip_table_to_glue(XSK) set_attr(xkanji_skip, attr_icflag, XKANJI_SKIP) end if mode then -- the current list is to be line-breaked: -- hbox from \parindent is skipped. local lp, par_indented, lpi, lps = head, 'boxbdd', getid(head), getsubtype(head) while lp and ((lpi==id_whatsit and lps~=sid_user) or ((lpi==id_hlist) and (lps==3)) or (lpi==id_local)) do if (lpi==id_hlist) and (lps==3) then Np.char, par_indented = 'parbdd', 'parbdd' Np.width = getwidth(lp) end lp=node_next(lp); lpi, lps = getid(lp), getsubtype(lp) end return lp, node_tail(head), par_indented, TEMP else return head, nil, 'boxbdd', TEMP end end end -------------------- 外部から呼ばれる関数 local ensure_tex_attr = ltjb.ensure_tex_attr local tex_getattr = tex.getattribute -- main interface function luatexja.jfmglue.main(ahead, mode, dir) if not ahead then return ahead end head = ahead; local lp, last, par_indented, TEMP = init_var(mode,dir) lp = calc_np(last, lp) if Np then handle_list_head(par_indented) lp = calc_np(last,lp); while Np do adjust_nq(); local pid, pm = Np.id, Np.met -- 挿入部 if pid == id_jglyph then handle_np_jachar(mode) elseif pm then if pid==id_hlist then handle_np_ja_hlist() else handle_np_jachar() end elseif Nq.met then if Nq.id==id_hlist then handle_nq_ja_hlist() else handle_nq_jachar() end end lp = calc_np(last,lp) end handle_list_tail(mode, last) end -- adjust attr_icflag for avoiding error if tex_getattr(attr_icflag)~=0 then ensure_tex_attr(attr_icflag, 0) end node_free(kanji_skip); node_free(xkanji_skip); node_free(TEMP) return head end end do local IHB = luatexja.userid_table.IHB local BPAR = luatexja.userid_table.BPAR local BOXB = luatexja.userid_table.BOXB local node_prev = node.direct.getprev local node_write = node.direct.write local setvalue = node.direct.setdata -- \inhibitglue, \disinhibitglue local function ihb_node(v) local tn = node_new(id_whatsit, sid_user) setfield(tn, 'user_id', IHB) setfield(tn, 'type', 100) setvalue(tn, v) node_write(tn) end function luatexja.jfmglue.create_inhibitglue_node() ihb_node(1) end function luatexja.jfmglue.create_disinhibitglue_node() ihb_node(0) end -- Node for indicating beginning of a paragraph -- (for ltjsclasses) function luatexja.jfmglue.create_beginpar_node() local tn = node_new(id_whatsit, sid_user) setfield(tn, 'user_id', BPAR) setfield(tn, 'type', 100) setvalue(tn, 1) node_write(tn) end -- Node for indicating a head/end of a box function luatexja.jfmglue.create_boxbdd_node() local tn = node_new(id_whatsit, sid_user) setfield(tn, 'user_id', BOXB) setfield(tn, 'type', 100) setvalue(tn, 1) node_write(tn) end local function whatsit_callback(Np, lp, Nq) if Np and Np.nuc then return Np elseif Np and getfield(lp, 'user_id') == BPAR then Np.first = lp; Np.nuc = lp; Np.last = lp return Np elseif Np and getfield(lp, 'user_id') == BOXB then Np.first = lp; Np.nuc = lp; Np.last = lp if Nq then if Nq.met then Np.class = fast_find_char_class('boxbdd', Nq.met) end Np.met = Nq.met; Np.pre = 0; Np.post = 0; Np.xspc = 0 Np.auto_xspc, Np.auto_kspc = 0, 0 end return Np else return Np end end local function whatsit_after_callback(s, Nq, Np, head) if not s and getfield(Nq.nuc, 'user_id') == BPAR then local x, y = node_prev(Nq.nuc), Nq.nuc Nq.first, Nq.nuc, Nq.last = x, x, x if Np then if Np.met then Nq.class = fast_find_char_class('parbdd', Np.met) end Nq.met = Np.met; Nq.pre = 0; Nq.post = 0; Nq.xspc = 0 Nq.auto_xspc, Nq.auto_kspc = 0, 0 end s = node_remove(head, y) node_free(y) elseif not s and getfield(Nq.nuc, 'user_id') == BOXB then local x, y = node_prev(Nq.nuc), Nq.nuc Nq.first, Nq.nuc, Nq.last = x, x, x if Np then if Np.met then Nq.class = fast_find_char_class('boxbdd', Np.met) end Nq.met = Np.met; Nq.pre = 0; Nq.post = 0; Nq.xspc = 0 Nq.auto_xspc, Nq.auto_kspc = 0, 0 end s = node_remove(head, y) node_free(y) end return s end luatexbase.add_to_callback("luatexja.jfmglue.whatsit_getinfo", whatsit_callback, "luatexja.beginpar.np_info", 1) luatexbase.add_to_callback("luatexja.jfmglue.whatsit_after", whatsit_after_callback, "luatexja.beginpar.np_info_after", 1) end do local node_prev = node.direct.getprev local node_write = node.direct.write local XKANJI_SKIP = luatexja.icflag_table.XKANJI_SKIP local XKANJI_SKIP_JFM = luatexja.icflag_table.XKANJI_SKIP_JFM local KANJI_SKIP = luatexja.icflag_table.KANJI_SKIP local KANJI_SKIP_JFM = luatexja.icflag_table.KANJI_SKIP_JFM local XSK = luatexja.stack_table_index.XSK local KSK = luatexja.stack_table_index.KSK local attr_yablshift = luatexbase.attributes['ltj@yablshift'] local attr_tablshift = luatexbase.attributes['ltj@tablshift'] local getcount, abs, scan_keyword = tex.getcount, math.abs, token.scan_keyword local getnest = tex.getnest local tex_getattr = tex.getattribute local get_current_jfont local cnt_stack = luatexbase.registernumber 'ltj@@stack' do local attr_curjfnt = luatexbase.attributes['ltj@curjfnt'] local attr_curtfnt = luatexbase.attributes['ltj@curtfnt'] local dir_tate = luatexja.dir_table.dir_tate local get_dir_count = ltjd.get_dir_count function get_current_jfont() return tex_getattr((get_dir_count()==dir_tate) and attr_curtfnt or attr_curjfnt) end end local get_stack_skip = ltjs.get_stack_skip -- \insertxkanjiskip -- SPECIAL_JAGLUE のノード: -- * (X)KANJI_SKIP(_JFM): その場で値が決まっている -- * PROCESSED_BEGIN_FLAG + (X)KANJI_SKIP: 段落終了時に決める local function insert_k_skip_common(ind, name, ica, icb) if abs(getnest().mode) ~= ltjs.hmode then return end local g = node_new(id_glue); set_attr(g, attr_icflag, SPECIAL_JAGLUE) local is_late = scan_keyword 'late' if not is_late then local st = get_stack_skip(ind, getcount(cnt_stack)) if st[1]==1073741823 then local bk = ltjf_font_metric_table[get_current_jfont()][name] if bk then setglue(g, bk[1] or 0, bk[2] or 0, bk[3] or 0, 0, 0) end set_attr(g, attr_yablshift, icb); node_write(g); return end setglue(g, st[1], st[2], st[3], st[4], st[5]) set_attr(g, attr_yablshift, ica) else set_attr(g, attr_yablshift, PROCESSED_BEGIN_FLAG + ica) set_attr(g, attr_tablshift, get_current_jfont()) end node_write(g) end function luatexja.jfmglue.insert_xk_skip() insert_k_skip_common(XSK, "xkanjiskip", XKANJI_SKIP, XKANJI_SKIP_JFM) end function luatexja.jfmglue.insert_k_skip() insert_k_skip_common(KSK, "kanjiskip", KANJI_SKIP, KANJI_SKIP_JFM) end -- callback local function special_jaglue(lx) local lxi = get_attr_icflag(lx) if lxi==SPECIAL_JAGLUE then non_ihb_flag = false; return false else return lx end end local function special_jaglue_after_inner(lx, lxi, lxi_jfm, kn, bk) local w, st, sh, sto, sho = getglue(kn) if w~=1073741823 then setglue(lx, w, st, sh, sto, sho); set_attr(lx, attr_icflag, lxi) else local m = ltjf_font_metric_table[get_attr(lx, attr_tablshift)] setglue(lx, bk[1], bk[2], bk[3], 0, 0) set_attr(lx, attr_icflag, lxi_jfm) end end local function special_jaglue_after(lx) if get_attr_icflag(lx)==SPECIAL_JAGLUE then lxi=get_attr(lx, attr_yablshift) if lxi>=PROCESSED_BEGIN_FLAG then lxi = lxi%PROCESSED_BEGIN_FLAG if lxi == KANJI_SKIP then special_jaglue_after_inner(lx, lxi, KANJI_SKIP_JFM, kanji_skip, ltjf_font_metric_table[get_attr(lx, attr_tablshift)].kanjiskip or null_skip_table) else -- lxi == XKANJI_SKIP special_jaglue_after_inner(lx, lxi, XKANJI_SKIP_JFM, xkanji_skip, ltjf_font_metric_table[get_attr(lx, attr_tablshift)].xkanjiskip or null_skip_table) end else set_attr(lx, attr_icflag, lxi) end Np.first = lx if node_prev(lx) then local lxp = node_prev(lx) if lxp and getid(lxp)==id_penalty and get_attr_icflag(lxp)==KINSOKU then Bp[#Bp+1]=lxp end end non_ihb_flag = false; return false end return true end luatexbase.create_callback("luatexja.jfmglue.special_jaglue", "list", special_jaglue) luatexbase.create_callback("luatexja.jfmglue.special_jaglue_after", "list", special_jaglue_after) end luatexja.jfmglue.after_hlist = after_hlist luatexja.jfmglue.check_box_high = check_box_high