X-Git-Url: http://git.osdn.jp/view?a=blobdiff_plain;f=src%2Fltj-jfmglue.lua;h=895cf9ca496eaec6d67fcfb4bc298d8a333c2f59;hb=0b91eabbaa3ec3f81de6bf9d7a1a2ee4ef363118;hp=966eaf9b0d88f8d54a22ca8792a38e7fd1e3fd32;hpb=3798f4baae838a412a2146a73abf1ef9a79d6772;p=luatex-ja%2Fluatexja.git diff --git a/src/ltj-jfmglue.lua b/src/ltj-jfmglue.lua index 966eaf9..895cf9c 100644 --- a/src/ltj-jfmglue.lua +++ b/src/ltj-jfmglue.lua @@ -3,11 +3,10 @@ -- luatexbase.provides_module({ name = 'luatexja.jfmglue', - date = '2015/02/07' - description = 'Insertion process of JFM glues and kanjiskip', + date = '2018/02/18', + description = 'Insertion process of JFM glues, [x]kanjiskip and others', }) -module('luatexja.jfmglue', package.seeall) -local err, warn, info, log = luatexbase .errwarinf(_NAME) +luatexja.jfmglue = luatexja.jfmglue or {} luatexja.load_module('base'); local ltjb = luatexja.base luatexja.load_module('stack'); local ltjs = luatexja.stack @@ -16,35 +15,39 @@ luatexja.load_module('direction'); local ltjd = luatexja.direction luatexja.load_module('setwidth'); local ltjw = luatexja.setwidth local pairs = pairs -local Dnode = node.direct or node - -local nullfunc = function(n) return n end -local to_node = (Dnode ~= node) and Dnode.tonode or nullfunc -local to_direct = (Dnode ~= node) and Dnode.todirect or nullfunc - -local setfield = (Dnode ~= node) and Dnode.setfield or function(n, i, c) n[i] = c end -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 getfont = (Dnode ~= node) and Dnode.getfont or function(n) return n.font end -local getlist = (Dnode ~= node) and Dnode.getlist or function(n) return n.head end -local getchar = (Dnode ~= node) and Dnode.getchar or function(n) return n.char end -local getsubtype = (Dnode ~= node) and Dnode.getsubtype or function(n) return n.subtype end - -local has_attr = Dnode.has_attribute -local set_attr = Dnode.set_attribute -local insert_before = Dnode.insert_before -local insert_after = Dnode.insert_after -local node_next = (Dnode ~= node) and Dnode.getnext or node.next -local round = tex.round +--local to_node = node.direct.tonode +--local to_direct = node.direct.todirect + +local setfield = node.direct.setfield +local setglue = luatexja.setglue +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 getsubtype = node.direct.getsubtype +local if_lang_ja +do + local lang_ja = luatexja.lang_ja + local getlang = node.direct.getlang + if_lang_ja = getlang + and function (n) return getlang(n)==lang_ja end + or function (n) return getfield(n,'lang')==lang_ja end +end + +local has_attr = node.direct.has_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 = Dnode.new -local node_copy = Dnode.copy -local node_remove = Dnode.remove -local node_tail = Dnode.tail -local node_free = Dnode.free -local node_end_of_math = Dnode.end_of_math +local node_new = node.direct.new +local node_copy = node.direct.copy +local node_tail = node.direct.tail +local node_free = node.direct.free +local node_remove = node.direct.remove local id_glyph = node.id('glyph') local id_hlist = node.id('hlist') @@ -60,18 +63,11 @@ local id_glue = node.id('glue') local id_kern = node.id('kern') local id_penalty = node.id('penalty') -local id_glue_spec = node.id('glue_spec') 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 lang_ja = token.create('ltj@@japanese')[2] - -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 ITALIC = luatexja.icflag_table.ITALIC local PACKED = luatexja.icflag_table.PACKED @@ -90,7 +86,7 @@ local list_dir local capsule_glyph local tex_dir local attr_ablshift -local set_np_xspc_jachar +local set_np_xspc_jachar, set_np_xspc_alchar local set_np_xspc_jachar_hbox local ltjs_orig_char_table = ltjs.orig_char_table @@ -121,45 +117,35 @@ do end end -local zero_glue = node_new(id_glue) -spec_zero_glue = to_node(node_new(id_glue_spec)) - -- must be public, since mentioned from other sources -local spec_zero_glue = to_direct(spec_zero_glue) -setfield(spec_zero_glue, 'width', 0) -setfield(spec_zero_glue, 'stretch', 0) -setfield(spec_zero_glue, 'shrink', 0) -setfield(spec_zero_glue, 'stretch_order', 0) -setfield(spec_zero_glue, 'shrink_order', 0) -setfield(zero_glue, 'spec', spec_zero_glue) - -local function skip_table_to_spec(n) - local g, st = node_new(id_glue_spec), ltjs.fast_get_stack_skip(n) - setfield(g, 'width', st.width) - setfield(g, 'stretch', st.stretch) - setfield(g, 'shrink', st.shrink) - setfield(g, 'stretch_order', st.stretch_order) - setfield(g, 'shrink_order', st.shrink_order) - return g +local function skip_table_to_glue(n) + local g, st = node_new(id_glue), ltjs.fast_get_stack_skip(n) + setglue(g, st.width, st.stretch, st.shrink, st.stretch_order, st.shrink_order) + return g, (st.width==1073741823) end -- penalty 値の計算 -local function add_penalty(p,e) - local pp = getfield(p, 'penalty') - if pp>=10000 then - if e<=-10000 then setfield(p, 'penalty', 0) end - elseif pp<=-10000 then - if e>=10000 then setfield(p, 'penalty', 0) end - else - pp = pp + e - if pp>=10000 then setfield(p, 'penalty', 10000) - elseif pp<=-10000 then setfield(p, 'penalty', -10000) - else setfield(p, 'penalty', pp) end +local add_penalty +do +local setpenalty = node.direct.setpenalty or function(n, a) setfield(n,'penalty',a) end +local getpenalty = node.direct.getpenalty or function(n) return getfield(n,'penalty') end +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 -diffmet_rule = math.two_paverage +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 @@ -177,6 +163,7 @@ local non_ihb_flag -- JFM グルー挿入抑止用 flag -------------------- 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) @@ -222,7 +209,9 @@ local function check_box(box_ptr, box_end) last_char = s; found_visible_node = true else if getfield(p, 'shift')==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 @@ -245,13 +234,13 @@ local function check_box(box_ptr, box_end) return found_visible_node end -function check_box_high(Nx, box_ptr, box_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 getfield(first_char, 'lang') == lang_ja 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) @@ -280,14 +269,14 @@ luatexbase.create_callback("luatexja.jfmglue.whatsit_after", "data", local calc_np do -local traverse = Dnode.traverse +local traverse = node.direct.traverse local function check_next_ickern(lp) - if lp and getid(lp) == id_kern and ITALIC == get_attr_icflag(lp) then - set_attr(lp, attr_icflag, IC_PROCESSED) - Np.last = lp; return node_next(lp) - else - Np.last = Np.nuc; return lp + local lx = Np.nuc + while lp and getid(lp) == id_kern and ( 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) @@ -295,9 +284,13 @@ local function calc_np_pbox(lp, last) 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 (lpanode_depth then - r = node_new(id_rule) + r = node_new(id_rule,3) setfield(r, 'width', 0); setfield(r, 'height', 0) setfield(r, 'depth',adj_depth); setfield(r, 'dir', tex_dir) set_attr(r, attr_icflag, PROCESSED) @@ -383,9 +380,11 @@ local function calc_np_aux_glyph_common(lp) if r then local nf, nc = getfont(npn), getchar(npn) local ct = (font.getfont(nf) or font.fonts[nf] ).characters[nc] - if (ct.left_protruding or 0) == 0 then + 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 = (Np.first==npn) and r or npn + 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 @@ -401,7 +400,15 @@ local function calc_np_aux_glyph_common(lp) return true, lp end end -local calc_np_auxtable = { +local calc_np_auxtable +do +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') +calc_np_auxtable = { [id_glyph] = calc_np_aux_glyph_common, [id_hlist] = function(lp) local op, flag @@ -428,10 +435,6 @@ local calc_np_auxtable = { Np.id = id_box_like; return true, node_next(lp) end, - skip = function(lp) - set_attr(lp, attr_icflag, PROCESSED) - return false, node_next(lp) - end, [id_whatsit] = function(lp) local lps = getsubtype(lp) if lps==sid_user then @@ -487,10 +490,15 @@ local calc_np_auxtable = { 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') - (has_attr(lp,attr_ablshift) or 0)) + else -- アクセントは上下にシフトされている + setfield(lp, 'shift', getfield(lp, 'shift') + (has_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) + 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) @@ -502,11 +510,14 @@ local calc_np_auxtable = { return false, node_next(lp) end, } +end calc_np_auxtable[id_rule] = calc_np_auxtable.box_like -calc_np_auxtable[13] = calc_np_auxtable.box_like -calc_np_auxtable[id_ins] = calc_np_auxtable.skip -calc_np_auxtable[id_mark] = calc_np_auxtable.skip -calc_np_auxtable[id_adjust] = calc_np_auxtable.skip +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 @@ -522,7 +533,7 @@ function calc_np(last, lp) for k = 1,#Bp do Bp[k] = nil end while lp ~= last do local lpa = has_attr(lp, attr_icflag) or 0 - -- unbox 由来ノードの検出 + -- unbox 由来ノードの検出 if lpa>=PACKED then if lpa%PROCESSED_BEGIN_FLAG == BOXBDD then local lq = node_next(lp) @@ -531,7 +542,7 @@ function calc_np(last, lp) return calc_np_pbox(lp, last) end -- id_pbox else - k, lp = calc_np_auxtable[getid(lp)](lp) + k, lp = (calc_np_auxtable[getid(lp)] or calc_np_aux_skip)(lp) if k then return lp end end end @@ -543,7 +554,7 @@ end -- 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. -after_hlist = nil -- global +local after_hlist = nil -- global local after_alchar, extract_np do local PRE = luatexja.stack_table_index.PRE @@ -557,26 +568,29 @@ do 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 = ltjs_orig_char_table[x], getchar(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 - if c~=c_glyph then set_attr(x, attr_jchar_code, c) 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 = (has_attr(x, attr_autospc)==1), (has_attr(x, attr_autoxspc)==1) - return m, cls + return m, mc, cls end function set_np_xspc_jachar_hbox(Nx, x) local m = ltjf_font_metric_table[getfont(x)] local c = has_attr(x, attr_jchar_code) or getchar(x) Nx.met, Nx.char = m, c; Nx.class = has_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 @@ -586,22 +600,22 @@ do -- 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 = getfield(x, 'components'), getsubtype(x) + local xc, xs = getcomponents(x), getsubtype(x) while xc and xs and xs%4>=2 do - x = f(xc); xc, xs = getfield(x, 'components'), getsubtype(x) + x = f(xc); xc, xs = getcomponents(x), getsubtype(x) end c = getchar(x) 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 else Nx.pre, Nx.post = 0, 0 - Nx.xspc = table_current_stack[XSP - 1] or 3 end Nx.met = nil + Nx.xspc = table_current_stack[XSP + c] or 3 Nx.auto_xspc = (has_attr(x, attr_autoxspc)==1) end local set_np_xspc_alchar = set_np_xspc_alchar @@ -612,7 +626,7 @@ do local s = Nx.last_char if s then if getid(s)==id_glyph then - if getfield(s, 'lang') == lang_ja then + if if_lang_ja(s) then set_np_xspc_jachar_hbox(Nx, s) else set_np_xspc_alchar(Nx, getchar(s), s, 2) @@ -634,8 +648,11 @@ 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) + luatexbase.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 @@ -651,6 +668,7 @@ local function handle_penalty_normal(post, pre, g) end local function handle_penalty_always(post, pre, g) + luatexbase.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 @@ -666,7 +684,7 @@ local function handle_penalty_always(post, pre, g) end local function handle_penalty_suppress(post, pre, g) - local a = (pre or 0) + (post or 0) + luatexbase.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) @@ -674,25 +692,42 @@ local function handle_penalty_suppress(post, pre, g) Bp[1]=p set_attr(p, attr_icflag, KINSOKU) end - else for _, v in pairs(Bp) do add_penalty(v,a) 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) + if a<-10000 then a = -10000 elseif a>10000 then a = 10000 end + setfield(p, 'penalty', 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(m, bc, ac) +local function new_jfm_glue(mc, bc, ac) -- bc, ac: char classes - local g = m.char_type[bc][ac] + local g = mc[bc][ac] if g then - if g[1] then + if g[1] then + return node_copy(g[1]), g.ratio, false, false, false + else local f = node_new(id_glue) - set_attr(f, attr_icflag, g[4]) - setfield(f, 'spec', node_copy(g[2])) - return f, g[3] - else - return node_copy(g[2]), g[3] + set_attr(f, attr_icflag, g.priority) + setglue(f, g.width, g.stretch, g.shrink) + return f, g.ratio, g.kanjiskip_natural, g.kanjiskip_stretch, g.kanjiskip_shrink end end - return nil, 0 + return false, 0 end -- Nq.last (kern w) .... (glue/kern g) Np.first @@ -705,196 +740,279 @@ end -------------------- 和文文字間空白量の決定 -local null_skip_table = {0, 0, 0} --- get kanjiskip -local get_kanjiskip -local get_kanjiskip_normal, get_kanjiskip_jfm -do - local KANJI_SKIP = luatexja.icflag_table.KANJI_SKIP - local KANJI_SKIP_JFM = luatexja.icflag_table.KANJI_SKIP_JFM - get_kanjiskip_normal = function () - if Np.auto_kspc or Nq.auto_kspc then - return node_copy(kanji_skip) - else - local g = node_copy(zero_glue) - set_attr(g, attr_icflag, KANJI_SKIP) - return g - end - end - - get_kanjiskip_jfm = function () - local g - if Np.auto_kspc or Nq.auto_kspc then - g = node_new(id_glue); --copy_attr(g, Nq.nuc) - local gx = node_new(id_glue_spec); - setfield(gx, 'stretch_order', 0); setfield(gx, 'shrink_order', 0) - local pm, qm = Np.met, Nq.met - local bk = qm.kanjiskip or null_skip_table - if (pm.char_type==qm.char_type) and (qm.var==pm.var) then - setfield(gx, 'width', bk[1]) - setfield(gx, 'stretch', bk[2]) - setfield(gx, 'shrink', bk[3]) - else - local ak = pm.kanjiskip or null_skip_table - setfield(gx, 'width', round(diffmet_rule(bk[1], ak[1]))) - setfield(gx, 'stretch', round(diffmet_rule(bk[2], ak[2]))) - setfield(gx, 'shrink', -round(diffmet_rule(-bk[3], -ak[3]))) - end - setfield(g, 'spec', gx) - else - g = node_copy(zero_glue) - end - set_attr(g, attr_icflag, KANJI_SKIP_JFM) - return g - end -end - 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 - calc_ja_ja_aux = function (gb,ga, db, da) - local rbb, rab = 0.5*(1-db), 0.5*(1-da) -- 「前の文字」由来のグルーの割合 - local rba, raa = 0.5*(1+db), 0.5*(1+da) -- 「前の文字」由来のグルーの割合 - if diffmet_rule ~= math.two_pleft and diffmet_rule ~= math.two_pright - and diffmet_rule ~= math.two_paverage then - rbb, rab, rba, raa = 1,0,0,1 + 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 + 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); setfield(gb, 'kern', 0) + gb = node_new(id_kern, 1); setfield(gb, 'kern', 0) else return nil end elseif not ga then - ga = node_new(id_kern); setfield(ga, 'kern', 0) + ga = node_new(id_kern, 1); setfield(ga, 'kern', 0) end local k = 2*getid(gb) - getid(ga) if k == bg_ag then - local bs, as = getfield(gb, 'spec'), getfield(ga, 'spec') -- 両方とも glue． - local bd, ad = getfield(bs, 'width'), getfield(as, 'width') - setfield(bs, 'width', round(diffmet_rule(rbb*bd + rba*ad, rab*bd + raa*ad))) - bd, ad = getfield(bs, 'stretch'), getfield(as, 'stretch') - setfield(bs, 'stretch', round(diffmet_rule(rbb*bd + rba*ad, rab*bd + raa*ad))) - bd, ad = getfield(bs, 'shrink'), getfield(as, 'shrink') - setfield(bs, 'shrink', -round(diffmet_rule(-rbb*bd - rba*ad, -rab*bd - raa*ad))) + setglue(gb, blend_diffmet( + getfield(gb, 'width'), getfield(ga, 'width'), db, da), + blend_diffmet( + getfield(gb, 'stretch'), getfield(ga, 'stretch'), db, da), + -blend_diffmet( + -getfield(gb, 'shrink'), -getfield(ga, 'shrink'), db, da)) node_free(ga) return gb elseif k == bk_ak then -- 両方とも kern． - local bd, ad = getfield(gb, 'kern'), getfield(ga, 'kern') - setfield(gb, 'kern', round(diffmet_rule(rbb*bd + rba*ad, rab*bd + raa*ad))) + setfield(gb, 'kern', blend_diffmet( + getfield(gb, 'kern'), getfield(ga, 'kern'), db, da)) node_free(ga) return gb elseif k == bk_ag then - local as = getfield(ga, 'spec') -- gb: kern, ga: glue - local bd, ad = getfield(gb, 'kern'), getfield(as, 'width') - setfield(as, 'width', round(diffmet_rule(rbb*bd + rba*ad, rab*bd + raa*ad))) - ad = getfield(as, 'stretch') - setfield(bs, 'stretch', round(diffmet_rule(rba*ad, raa*ad))) - ad = getfield(as, 'shrink') - setfield(bs, 'shrink', -round(diffmet_rule(-rba*ad, -raa*ad))) + setglue(ga, blend_diffmet( + getfield(gb, 'kern'), getfield(ga, 'width'), db, da), + blend_diffmet( + 0, getfield(ga, 'stretch'), db, da), + -blend_diffmet( + 0, -getfield(ga, 'shrink'), db, da)) node_free(gb) - return ga + return ga, 0, 0, 0 else - local bs = getfield(gb, 'spec') -- gb: glue, ga: kern - local bd, ad = getfield(bs, 'width'), getfield(ga, 'kern') - setfield(bs, 'width', round(diffmet_rule(rbb*bd + rba*ad, rab*bd + raa*ad))) - bd = getfield(bs, 'stretch') - setfield(bs, 'stretch', round(diffmet_rule(rbb*bd, rab*bd))) - bd = getfield(bs, 'shrink') - setfield(bs, 'shrink', -round(diffmet_rule(-rbb*bd, -rab*bd))) + setglue(gb, blend_diffmet( + getfield(gb, 'width'), getfield(ga, 'kern'), db, da), + blend_diffmet( + getfield(gb, 'stretch'), 0, db, da), + -blend_diffmet( + -getfield(gb, 'shrink'), 0, db, da)) node_free(ga) return gb end end end -local function calc_ja_ja_glue() - local qm, pm = Nq.met, Np.met - if (qm.char_type==pm.char_type) and (qm.var==pm.var) then - return new_jfm_glue(qm, Nq.class, Np.class) - else - local npn, nqn = Np.nuc, Nq.nuc - local gb, db = new_jfm_glue(qm, Nq.class, - slow_find_char_class(Np.char, - qm, getchar(npn))) - local ga, da = new_jfm_glue(pm, - slow_find_char_class(Nq.char, - pm, getchar(nqn)), - Np.class) - return calc_ja_ja_aux(gb, ga, db, da); +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 () + 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(false, 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 + if (pmc==qmc) and (qm.var==pm.var) then + gb = get_kanjiskip_low(false, qm, bn, bp, bh) + ga = get_kanjiskip_low(false, pm, an, ap, ah) + k = calc_ja_ja_aux(gb, ga, db, da) + end + return g, k + end end end -------------------- 和欧文間空白量の決定 -- get xkanjiskip -local 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_normal = function (Nn) - if (Nq.xspc>=2) and (Np.xspc%2==1) and (Nq.auto_xspc or Np.auto_xspc) then - return node_copy(xkanji_skip) - else - local g = node_copy(zero_glue) - set_attr(g, attr_icflag, XKANJI_SKIP) - return g + + 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); + setglue(g, + bn and (bn*getfield(xkanji_skip, 'width')) or 0, + bp and (bp*getfield(xkanji_skip, 'stretch')) or 0, + bh and (bh*getfield(xkanji_skip, 'shrink')) or 0, + 0, 0) + set_attr(g, attr_icflag, XKANJI_SKIP_JFM) + return g + end end end - get_xkanjiskip_jfm = function (Nn) - local g - if (Nq.xspc>=2) and (Np.xspc%2==1) and (Nq.auto_xspc or Np.auto_xspc) then - g = node_new(id_glue) - local gx = node_new(id_glue_spec); - setfield(gx, 'stretch_order', 0); setfield(gx, 'shrink_order', 0) - local bk = Nn.met.xkanjiskip or null_skip_table - setfield(gx, 'width', bk[1]) - setfield(gx, 'stretch', bk[2]) - setfield(gx, 'shrink', bk[3]) - setfield(g, 'spec', gx) + + 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 - g = node_copy(zero_glue) + local g = node_new(id_glue) + set_attr(g, attr_icflag, xkanjiskip_jfm_flag and XKANJI_SKIP_JFM or XKANJI_SKIP) + return g end - set_attr(g, attr_icflag, XKANJI_SKIP_JFM) - return g end end -------------------- 隣接した「塊」間の処理 -local function get_OA_skip() +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 - return new_jfm_glue(pm, - fast_find_char_class((Nq.id == id_math and -1 or 'jcharbdd'), pm), Np.class) + local g, _, kn, kp, kh = new_jfm_glue( + pm.char_type, + fast_find_char_class( + (Nq.id == id_math and -1 or (Nq.xspc>=2 and 'alchar' or 'nox_alchar')), pm), + Np.class) + local k = ((Nq.xspc>=2) and (Np.xspc%2==1) and combine_spc('auto_xspc')) + and get_xkanjiskip_low(false, pm, kn, kp, kh) + return g, k end -local function get_OB_skip() +local function get_NB_skip() local qm = Nq.met - return new_jfm_glue(qm, Nq.class, - fast_find_char_class((Np.id == id_math and -1 or'jcharbdd'), qm)) + local g, _, kn, kp, kh = new_jfm_glue( + qm.char_type, Nq.class, + fast_find_char_class( + (Np.id == id_math and -1 or (Np.xspc%2==1 and 'alchar' or 'nox_alchar')), qm) + ) + local k = ((Nq.xspc>=2) and (Np.xspc%2==1) and combine_spc('auto_xspc')) + and get_xkanjiskip_low(false, qm, kn, kp, kh) + return g, k +end + +local function get_OA_skip(is_kanji) + 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 is_kanji==0 then + k = combine_spc('auto_kspc') and get_kanjiskip_low(false, pm, kn, kp, kh) + end + return g, k +end +local function get_OB_skip(is_kanji) + 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 is_kanji==0 then + k = combine_spc('auto_kspc') and get_kanjiskip_low(false, 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 = non_ihb_flag and calc_ja_ja_glue() or get_kanjiskip() -- M->K - handle_penalty_normal(Nq.post, Np.pre, g); real_insert(g) + 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 = non_ihb_flag and get_OA_skip() or get_kanjiskip() -- O_A->K - handle_penalty_normal(0, Np.pre, g); real_insert(g) + local g, k + if non_ihb_flag then g, k = get_OA_skip(0) 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 = non_ihb_flag and get_OA_skip() or get_xkanjiskip(Np) -- O_A->X - handle_penalty_normal((qid==id_hlist and 0 or Nq.post), Np.pre, g); real_insert(g) + 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 + 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) @@ -910,10 +1028,10 @@ end -- jachar .. (anything) local function handle_nq_jachar() if Np.pre then - local g = non_ihb_flag and get_OB_skip() or get_xkanjiskip(Nq) -- O_B->X + local g = non_ihb_flag and get_NB_skip() or get_xkanjiskip(Nq) -- N_B->X handle_penalty_normal(Nq.post, (Np.id==id_hlist and 0 or Np.pre), g); real_insert(g) else - local g =non_ihb_flag and get_OB_skip() -- O_B + 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) @@ -925,8 +1043,8 @@ 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 Nq.id == id_pbox_w) and Nq.met) then - local g = non_ihb_flag and get_OB_skip() or get_kanjiskip() -- O_B->K + 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(0) 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 @@ -947,6 +1065,7 @@ 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) @@ -959,7 +1078,7 @@ do end, } - function adjust_nq() + adjust_nq=function() local x = adjust_nq_aux[Nq.id] if x then x() end end @@ -968,23 +1087,20 @@ 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 JWP = luatexja.stack_table_index.JWP -local function handle_list_tail(mode) - adjust_nq(); Np = Nq +local function handle_list_tail(mode, last) + adjust_nq() if mode then -- the current list is to be line-breaked. -- Insert \jcharwidowpenalty - Bp = widow_Bp; Np = widow_Np - if Np.first then - handle_penalty_normal(0, table_current_stack[JWP] or 0) - end + 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, Np.class, fast_find_char_class('boxbdd', pm)) + 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) @@ -998,7 +1114,7 @@ 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, fast_find_char_class(par_indented, pm), Np.class) + 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 @@ -1015,6 +1131,7 @@ end -- 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 @@ -1043,46 +1160,47 @@ do 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. + -- ithout this node, set_attr(kanji_skip, ...) somehow creates an "orphaned" attribute list. do - kanji_skip = node_new(id_glue); set_attr(kanji_skip, attr_icflag, KANJI_SKIP) - local s = skip_table_to_spec(KSK) - setfield(kanji_skip, 'spec', s) - get_kanjiskip = (getfield(s, 'width') == 1073741823) - and get_kanjiskip_jfm or get_kanjiskip_normal + kanji_skip, kanjiskip_jfm_flag = skip_table_to_glue(KSK) + set_attr(kanji_skip, attr_icflag, KANJI_SKIP) end do - xkanji_skip = node_new(id_glue); set_attr(xkanji_skip, attr_icflag, XKANJI_SKIP) - local s = skip_table_to_spec(XSK) - setfield(xkanji_skip, 'spec', s) - get_xkanjiskip = (getfield(s, 'width') == 1073741823) - and get_xkanjiskip_jfm or get_xkanjiskip_normal + 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))) do + 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 = getfield(lp, 'width') end lp=node_next(lp); lpi, lps = getid(lp), getsubtype(lp) end - return lp, node_tail(head), par_indented + return lp, node_tail(head), par_indented, TEMP else - return head, nil, 'boxbdd' + return head, nil, 'boxbdd', TEMP end end end local ensure_tex_attr = ltjb.ensure_tex_attr -local function cleanup(mode) +local function cleanup(mode, TEMP) + -- luatexja.ext_show_node_list(to_node(head), '> ', print) -- adjust attr_icflag for avoiding error if tex.getattribute(attr_icflag)~=0 then ensure_tex_attr(attr_icflag, 0) end - node_free(kanji_skip); node_free(xkanji_skip) + node_free(kanji_skip); + node_free(xkanji_skip); node_free(TEMP) if mode then local h = node_next(head) @@ -1098,14 +1216,17 @@ end -------------------- 外部から呼ばれる関数 -- main interface -function main(ahead, mode, dir) +function luatexja.jfmglue.main(ahead, mode, dir) if not ahead then return ahead end + --luatexja.ext_show_node_list(to_node(ahead ), '>B ', print) + --print() head = ahead; - local lp, last, par_indented = init_var(mode,dir) + 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 + lp = calc_np(last,lp); + while Np do adjust_nq(); local pid, pm = Np.id, Np.met -- 挿入部 @@ -1120,20 +1241,23 @@ function main(ahead, mode, dir) end lp = calc_np(last,lp) end - handle_list_tail(mode) + handle_list_tail(mode, last) end - return cleanup(mode) + --luatexja.ext_show_node_list(to_node(ahead ), '>A ', print) + --print() + return cleanup(mode, TEMP) end end do local IHB = luatexja.userid_table.IHB local BPAR = luatexja.userid_table.BPAR - local node_prev = (Dnode ~= node) and Dnode.getprev or node.prev - local node_write = Dnode.write + local BOXB = luatexja.userid_table.BOXB + local node_prev = node.direct.getprev + local node_write = node.direct.write -- \inhibitglue - function create_inhibitglue_node() + function luatexja.jfmglue.create_inhibitglue_node() local tn = node_new(id_whatsit, sid_user) setfield(tn, 'user_id', IHB) setfield(tn, 'type', 100) @@ -1143,7 +1267,7 @@ do -- Node for indicating beginning of a paragraph -- (for ltjsclasses) - function create_beginpar_node() + function luatexja.jfmglue.create_beginpar_node() local tn = node_new(id_whatsit, sid_user) setfield(tn, 'user_id', BPAR) setfield(tn, 'type', 100) @@ -1151,11 +1275,32 @@ do 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) + setfield(tn, 'value', 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 @@ -1168,7 +1313,19 @@ do 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 = false + Nq.auto_xspc, Nq.auto_kspc = 0, 0 + end + head = 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 head = node_remove(head, y) node_free(y) @@ -1182,3 +1339,6 @@ do "luatexja.beginpar.np_info_after", 1) end + +luatexja.jfmglue.after_hlist = after_hlist +luatexja.jfmglue.check_box_high = check_box_high \ No newline at end of file