5 luatexja.load_module 'base'; local ltjb = luatexja.base
6 luatexja.load_module 'charrange'; local ltjc = luatexja.charrange
7 luatexja.load_module 'stack'; local ltjs = luatexja.stack
8 luatexja.load_module 'jfont'; local ltjf = luatexja.jfont
9 luatexja.load_module 'direction'; local ltjd = luatexja.direction
11 local to_node = node.direct.tonode
12 local to_direct = node.direct.todirect
14 local setfield = node.direct.setfield
15 local getid = node.direct.getid
16 local getfont = node.direct.getfont
17 local getchar = node.direct.getchar
18 local getfield = node.direct.getfield
19 local getsubtype = node.direct.getsubtype
20 local getlang = node.direct.getlang
23 local floor = math.floor
24 local get_attr = node.direct.get_attribute
25 local has_attr = node.direct.has_attribute
26 local set_attr = node.direct.set_attribute
27 local node_traverse = node.direct.traverse
28 local node_remove = node.direct.remove
29 local node_next = node.direct.getnext
30 local node_free = node.direct.flush_node or node.direct.free
31 local node_end_of_math = node.direct.end_of_math
32 local getcount = tex.getcount
34 local id_glyph = node.id 'glyph'
35 local id_math = node.id 'math'
36 local id_whatsit = node.id 'whatsit'
37 local sid_user = node.subtype 'user_defined'
39 local attr_dir = luatexbase.attributes['ltj@dir']
40 local attr_curjfnt = luatexbase.attributes['ltj@curjfnt']
41 local attr_curtfnt = luatexbase.attributes['ltj@curtfnt']
42 local attr_icflag = luatexbase.attributes['ltj@icflag']
44 local is_ucs_in_japanese_char = ltjc.is_ucs_in_japanese_char_direct
45 local ltjs_orig_char_table = ltjs.orig_char_table
46 local ltjf_replace_altfont = ltjf.replace_altfont
47 local STCK = luatexja.userid_table.STCK
48 local DIR = luatexja.userid_table.DIR
49 local JA_AL_BDD = luatexja.userid_table.JA_AL_BDD
50 local PROCESSED_BEGIN_FLAG = luatexja.icflag_table.PROCESSED_BEGIN_FLAG
52 local dir_tate = luatexja.dir_table.dir_tate
53 local lang_ja = luatexja.lang_ja
55 local setlang = node.direct.setlang
56 local setfont = node.direct.setfont
57 local setchar = node.direct.setchar
59 ------------------------------------------------------------------------
60 -- MAIN PROCESS STEP 1: replace fonts
61 ------------------------------------------------------------------------
62 local wt, wtd = {}, {}
64 local ltjd_get_dir_count = ltjd.get_dir_count
65 local start_time_measure, stop_time_measure
66 = ltjb.start_time_measure, ltjb.stop_time_measure
68 local suppress_hyphenate_ja_aux = {
69 [id_math] = function(p) return node_next(node_end_of_math(node_next(p))) end,
70 [id_whatsit] = function(p)
71 if getsubtype(p)==sid_user then
72 local uid = getfield(p, 'user_id')
74 wt[#wt+1] = p; node_remove(head, p)
76 if get_attr(p, attr_icflag)<PROCESSED_BEGIN_FLAG then
77 ltjs.list_dir = get_attr(p, attr_dir)
78 else -- こっちのケースは通常使用では起こらない
79 wtd[#wtd+1] = p; node_remove(head, p)
86 setmetatable(suppress_hyphenate_ja_aux,
87 { __index = function() return node_next end, })
88 local id_boundary = node.id 'boundary'
89 local node_new, insert_before = node.direct.new, node.direct.insert_before
90 local setsubtype = node.direct.setsubtype
91 local function suppress_hyphenate_ja (h)
92 start_time_measure 'ltj_hyphenate'
94 for i = 1,#wt do wt[i]=nil end
95 for i = 1,#wtd do wtd[i]=nil end
96 for i,_ in pairs(ltjs_orig_char_table) do
97 ltjs_orig_char_table[i] = nil
99 ltjs.list_dir=ltjd_get_dir_count()
103 local pid, prev_chartype = getid(p), 0
104 -- prev_chartype: 0: not char 1: ALchar 2: JAchar
105 while pid==id_glyph do
106 local pc = getchar(p)
107 if has_attr(p, attr_icflag, 0) and is_ucs_in_japanese_char(p, pc) then
108 if prev_chartype==1 then
109 local b = node_new(id_whatsit,sid_user);
110 setfield(b, 'type', 100); setfield(b, 'user_id', JA_AL_BDD);
111 insert_before(head, p, b)
114 ltjs_orig_char_table[p], prev_chartype = pc, 2
115 elseif prev_chartype==2 then
116 local b = node_new(id_whatsit,sid_user);
117 setfield(b, 'type', 100); setfield(b, 'user_id', JA_AL_BDD);
118 insert_before(head, p, b); prev_chartype = 1
119 else prev_chartype = 1
121 p = node_next(p); pid = getid(p)
123 p = (suppress_hyphenate_ja_aux[pid])(p)
126 stop_time_measure 'ltj_hyphenate'; start_time_measure 'tex_hyphenate'
127 lang.hyphenate(h, nil)
128 stop_time_measure 'tex_hyphenate'
132 ltjb.add_to_callback('hyphenate', suppress_hyphenate_ja, 'ltj.hyphenate')
135 -- mode: true iff this function is called from hpack_filter
136 local set_box_stack_level
138 local ltjs_report_stack_level = ltjs.report_stack_level
139 local ltjf_font_metric_table = ltjf.font_metric_table
140 local traverse_glyph = node.direct.traverse_glyph
141 local cnt_stack = luatexbase.registernumber 'ltj@@stack'
142 local texget, getvalue = tex.get, node.direct.getdata
143 function set_box_stack_level(head, mode)
146 local cl = (texget 'currentgrouplevel') + 1
149 if getvalue(p)==cl then box_set = 1 end; node_free(p)
152 for i=1,#wt do node_free(wt[i]) end
154 ltjs_report_stack_level(getcount(cnt_stack) + box_set)
155 for _,p in pairs(wtd) do node_free(p) end
156 if ltjs.list_dir == dir_tate then
157 for p in traverse_glyph(to_direct(head)) do
158 if getlang(p)==lang_ja and has_attr(p, attr_icflag, 0) then
159 local pf = ltjf_replace_altfont(attr_curtfnt, getchar(p), p)
160 if ltjf_font_metric_table[pf].vert_activated then
161 local pc = ltjf_font_metric_table[pf].vform[pc]; if pc then setchar(p, pc) end
166 for p in traverse_glyph(to_direct(head)) do
167 if getlang(p)==lang_ja and has_attr(p, attr_icflag, 0) then
168 ltjf_replace_altfont(attr_curjfnt, getchar(p), p)
177 ltjb.add_to_callback('hpack_filter',
179 return set_box_stack_level(head, true)
180 end, 'ltj.set_stack_level', 1)
181 ltjb.add_to_callback('pre_linebreak_filter',
183 return set_box_stack_level(head, false)
184 end, 'ltj.set_stack_level', 1)
186 luatexja.pretreat = {
187 set_box_stack_level = set_box_stack_level,
188 orig_char_table = orig_char_table,