diff options
Diffstat (limited to 'Master/texmf-dist/tex/luatex/luatexja/ltj-adjust_85.lua')
-rw-r--r-- | Master/texmf-dist/tex/luatex/luatexja/ltj-adjust_85.lua | 291 |
1 files changed, 0 insertions, 291 deletions
diff --git a/Master/texmf-dist/tex/luatex/luatexja/ltj-adjust_85.lua b/Master/texmf-dist/tex/luatex/luatexja/ltj-adjust_85.lua deleted file mode 100644 index db85d8f3260..00000000000 --- a/Master/texmf-dist/tex/luatex/luatexja/ltj-adjust_85.lua +++ /dev/null @@ -1,291 +0,0 @@ --- --- luatexja/otf.lua --- -luatexja.load_module('jfont'); local ltjf = luatexja.jfont -luatexja.load_module('jfmglue'); local ltjj = luatexja.jfmglue -luatexja.load_module('stack'); local ltjs = luatexja.stack -luatexja.load_module('direction'); local ltjd = luatexja.direction - -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 is_zero_glue = node.direct.is_zero_glue or - function(g) - return (getfield(g,'width')==0)and (getfield(g,'stretch')==0)and(getfield(g,'shrink')==0) - end -local getlist = node.direct.getlist -local getid = node.direct.getid -local getfont = node.direct.getfont -local getsubtype = node.direct.getsubtype - -local node_traverse_id = node.direct.traverse_id -local node_new = node.direct.new -local node_copy = node.direct.copy -local node_hpack = node.direct.hpack -local node_next = node.direct.getnext -local node_free = node.direct.free -local node_prev = node.direct.getprev -local node_tail = node.direct.tail -local has_attr = node.direct.has_attribute -local set_attr = node.direct.set_attribute -local insert_after = node.direct.insert_after - -local id_glyph = node.id('glyph') -local id_kern = node.id('kern') -local id_hlist = node.id('hlist') -local id_glue = node.id('glue') -local id_whatsit = node.id('whatsit') -local attr_icflag = luatexbase.attributes['ltj@icflag'] -local attr_jchar_class = luatexbase.attributes['ltj@charclass'] -local lang_ja = luatexja.lang_ja - -local ltjf_font_metric_table = ltjf.font_metric_table -local round, pairs = tex.round, pairs - -local PACKED = luatexja.icflag_table.PACKED -local FROM_JFM = luatexja.icflag_table.FROM_JFM -local KANJI_SKIP = luatexja.icflag_table.KANJI_SKIP -local KANJI_SKIP_JFM = luatexja.icflag_table.KANJI_SKIP_JFM -local XKANJI_SKIP = luatexja.icflag_table.XKANJI_SKIP -local XKANJI_SKIP_JFM = luatexja.icflag_table.XKANJI_SKIP_JFM - -local priority_table = { - FROM_JFM + 2, - FROM_JFM + 1, - FROM_JFM, - FROM_JFM - 1, - FROM_JFM - 2, - XKANJI_SKIP, - KANJI_SKIP -} - -local get_attr_icflag -do - local PROCESSED_BEGIN_FLAG = luatexja.icflag_table.PROCESSED_BEGIN_FLAG - get_attr_icflag = function(p) - return (has_attr(p, attr_icflag) or 0) % PROCESSED_BEGIN_FLAG - end -end - --- box 内で伸縮された glue の合計値を計算 - -local function get_stretched(q, go, gs) - if gs == 1 then -- stretching - if getfield(q, 'stretch_order') == go then - return getfield(q, 'stretch') - else return 0 - end - else -- shrinking - if getfield(q, 'shrink_order') == go then - return getfield(q, 'shrink') - else return 0 - end - end -end - -local res = {} -local gs_used_line = {} -local function get_total_stretched(p, line) - local go, gf, gs - = getfield(p, 'glue_order'), getfield(p, 'glue_set'), getfield(p, 'glue_sign') - if go ~= 0 then return nil end - res[0], res.glue_set, res.name = 0, gf, (gs==1) and 'stretch' or 'shrink' - for i=1,#priority_table do res[priority_table[i]]=0 end - if gs ~= 1 and gs ~= 2 then return res, 0 end - local total = 0 - for q in node_traverse_id(id_glue, getlist(p)) do - local a, ic = get_stretched(q, go, gs), get_attr_icflag(q) - if ic == KANJI_SKIP_JFM then ic = KANJI_SKIP - elseif ic == XKANJI_SKIP_JFM then ic = XKANJI_SKIP - end - if type(res[ic]) == 'number' then - -- kanjiskip, xkanjiskip は段落内で spec を共有しているが, - -- それはここでは望ましくないので,各 glue ごとに異なる spec を使う. - -- 本当は各行ごとに glue_spec を共有させたかったが,安直にやると - -- ref_count が 0 なので Double-free が発生する.どうする? - -- JFM グルーはそれぞれ異なる glue_spec を用いているので,問題ない. - if (ic == KANJI_SKIP or ic == XKANJI_SKIP) and getsubtype(q)==0 then - local qs = getfield(q, 'spec') - if is_zero_glue(q) then - if (gs_used_line[qs] or 0)<line then - setfield(q, 'spec', node_copy(qs)) - local f = node_new(id_glue); setfield(f, 'spec', qs); node_free(f) - -- decrese qs's reference count - else - gs_used_line[qs] = line - end - end - end - res[ic], total = res[ic] + a, total + a - else - res[0], total = res[0] + a, total + a - end - end - return res, total -end - -local function clear_stretch(p, ic, name) - for q in node_traverse_id(id_glue, getlist(p)) do - local f = get_attr_icflag(q) - if (f == ic) or ((ic ==KANJI_SKIP) and (f == KANJI_SKIP_JFM)) - or ((ic ==XKANJI_SKIP) and (f == XKANJI_SKIP_JFM)) then - local qs = getfield(q, 'spec') - if getfield(qs, 'writable') then - setfield(qs, name..'_order', 0) - setfield(qs, name, 0) - end - end - end -end - -local set_stretch_table = {} -local function set_stretch(p, after, before, ic, name) - if before > 0 then - local ratio = after/before - for i,_ in pairs(set_stretch_table) do - set_stretch_table[i] = nil - end - for q in node_traverse_id(id_glue, getlist(p)) do - local f = get_attr_icflag(q) - if (f == ic) or ((ic ==KANJI_SKIP) and (f == KANJI_SKIP_JFM)) - or ((ic ==XKANJI_SKIP) and (f == XKANJI_SKIP_JFM)) then - local qs, do_flag = getfield(q, 'spec'), true - for i=1,#set_stretch_table do - if set_stretch_table[i]==qs then do_flag = false end - end - if getfield(qs, 'writable') and getfield(qs, name..'_order')==0 and do_flag then - setfield(q, name, getfield(qs, name)*ratio) - set_stretch_table[#set_stretch_table+1] = qs - end - end - end - end -end - --- step 1: 行末に kern を挿入(句読点,中点用) -local ltjd_glyph_from_packed = ltjd.glyph_from_packed -local function aw_step1(p, res, total) - local head = getlist(p) - local x = node_tail(head); if not x then return false end - -- x: \rightskip - x = node_prev(x); if not x then return false end - local xi, xc = getid(x) - if xi == id_glue and getsubtype(x) == 15 then - -- 段落最終行のときは,\penalty10000 \parfillskip が入るので, - -- その前の node が本来の末尾文字となる - x = node_prev(node_prev(x)); xi = getid(x) - end - -- local xi = getid(x) - -- while (get_attr_icflag(x) == PACKED) - -- and ((xi == id_penalty) or (xi == id_kern) or (xi == id_kern)) do - -- x = node_prev(x); xi = getid(x) - -- end - if xi == id_glyph and getfield(x, 'lang')==lang_ja then - -- 和文文字 - xc = x - elseif xi == id_hlist and get_attr_icflag(x) == PACKED then - -- packed JAchar - xc = ltjd_glyph_from_packed(x) - while getid(xc) == id_whatsit do xc = node_next(xc) end -- これはなんのために? - else - return false-- それ以外は対象外. - end - local xk = ltjf_font_metric_table[getfont(xc)] - .char_type[has_attr(xc, attr_jchar_class) or 0]['end_' .. res.name] or 0 - - if xk>0 and total>=xk then - total = total - xk - local kn = node_new(id_kern) - setfield(kn, 'kern', (res.name=='shrink' and -1 or 1) * xk) - set_attr(kn, attr_icflag, FROM_JFM) - insert_after(head, x, kn) - return true - else return false - end -end - --- step 2: 行中の glue を変える -local function aw_step2(p, res, total, added_flag) - if total == 0 then -- もともと伸縮の必要なし - if added_flag then -- 行末に kern 追加したので,それによる補正 - local f = node_hpack(getlist(p), getfield(p, 'width'), 'exactly') - setfield(f, 'head', nil) - setfield(p, 'glue_set', getfield(f, 'glue_set')) - setfield(p, 'glue_order', getfield(f, 'glue_order')) - setfield(p, 'glue_sign', getfield(f, 'glue_sign')) - node_free(f) - return - end - elseif total <= res[0] then -- 和文処理グルー以外で足りる - for _,v in pairs(priority_table) do clear_stretch(p, v, res.name) end - local f = node_hpack(getlist(p), getfield(p, 'width'), 'exactly') - setfield(f, 'head', nil) - setfield(p, 'glue_set', getfield(f, 'glue_set')) - setfield(p, 'glue_order', getfield(f, 'glue_order')) - setfield(p, 'glue_sign', getfield(f, 'glue_sign')) - node_free(f) - else - total = total - res[0] - for i = 1, #priority_table do - local v = priority_table[i] - if total <= res[v] then - for j = i+1,#priority_table do - clear_stretch(p, priority_table[j], res.name) - end - set_stretch(p, total, res[v], v, res.name); break - end - total = total - res[v] - end - local f = node_hpack(getlist(p), getfield(p, 'width'), 'exactly') - setfield(f, 'head', nil) - setfield(p, 'glue_set', getfield(f, 'glue_set')) - setfield(p, 'glue_order', getfield(f, 'glue_order')) - setfield(p, 'glue_sign', getfield(f, 'glue_sign')) - node_free(f) - end -end - - -local ltjs_fast_get_stack_skip = ltjs.fast_get_stack_skip -local function adjust_width(head) - if not head then return head end - local line = 1 - for p in node_traverse_id(id_hlist, to_direct(head)) do - line = line + 1 - local res, total = get_total_stretched(p, line) - -- this is the same table as the table which is def'd in l. 92 - if res and res.glue_set<1 then - total = round(total * res.glue_set) - aw_step2(p, res, total, aw_step1(p, res, total)) - end - end - for i,_ in pairs(gs_used_line) do - gs_used_line[i] = nil - end - return to_node(head) -end - -do - luatexja.adjust = luatexja.adjust or {} - local is_reg = false - function luatexja.adjust.enable_cb() - if not is_reg then - luatexbase.add_to_callback('post_linebreak_filter', - adjust_width, 'Adjust width', 100) - is_reg = true - end - end - function luatexja.adjust.disable_cb() - if is_reg then - luatexbase.remove_from_callback('post_linebreak_filter', 'Adjust width') - is_reg = false - end - end -end - -luatexja.unary_pars.adjust = function(t) - return is_reg and 1 or 0 -end |