1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
|
--
-- ltj-pretreat.lua
--
luatexja.load_module 'base'; local ltjb = luatexja.base
luatexja.load_module 'charrange'; local ltjc = luatexja.charrange
luatexja.load_module 'stack'; local ltjs = luatexja.stack
luatexja.load_module 'jfont'; local ltjf = luatexja.jfont
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 getid = node.direct.getid
local getfont = node.direct.getfont
local getchar = node.direct.getchar
local getfield = node.direct.getfield
local getsubtype = node.direct.getsubtype
local getlang = node.direct.getlang
local pairs = pairs
local floor = math.floor
local get_attr = node.direct.get_attribute
local has_attr = node.direct.has_attribute
local set_attr = node.direct.set_attribute
local node_traverse = node.direct.traverse
local node_remove = node.direct.remove
local node_next = node.direct.getnext
local node_free = node.direct.flush_node or node.direct.free
local node_end_of_math = node.direct.end_of_math
local getcount = tex.getcount
local id_glyph = node.id 'glyph'
local id_math = node.id 'math'
local id_whatsit = node.id 'whatsit'
local sid_user = node.subtype 'user_defined'
local attr_dir = luatexbase.attributes['ltj@dir']
local attr_curjfnt = luatexbase.attributes['ltj@curjfnt']
local attr_curtfnt = luatexbase.attributes['ltj@curtfnt']
local attr_icflag = luatexbase.attributes['ltj@icflag']
local is_ucs_in_japanese_char = ltjc.is_ucs_in_japanese_char_direct
local ltjs_orig_char_table = ltjs.orig_char_table
local ltjf_replace_altfont = ltjf.replace_altfont
local STCK = luatexja.userid_table.STCK
local DIR = luatexja.userid_table.DIR
local JA_AL_BDD = luatexja.userid_table.JA_AL_BDD
local PROCESSED_BEGIN_FLAG = luatexja.icflag_table.PROCESSED_BEGIN_FLAG
local dir_tate = luatexja.dir_table.dir_tate
local lang_ja = luatexja.lang_ja
local setlang = node.direct.setlang
local setfont = node.direct.setfont
local setchar = node.direct.setchar
------------------------------------------------------------------------
-- MAIN PROCESS STEP 1: replace fonts
------------------------------------------------------------------------
local wt, wtd = {}, {}
do
local ltjd_get_dir_count = ltjd.get_dir_count
local start_time_measure, stop_time_measure
= ltjb.start_time_measure, ltjb.stop_time_measure
local head
local suppress_hyphenate_ja_aux = {
[id_math] = function(p) return node_next(node_end_of_math(node_next(p))) end,
[id_whatsit] = function(p)
if getsubtype(p)==sid_user then
local uid = getfield(p, 'user_id')
if uid==STCK then
wt[#wt+1] = p; node_remove(head, p)
elseif uid==DIR then
if get_attr(p, attr_icflag)<PROCESSED_BEGIN_FLAG then
ltjs.list_dir = get_attr(p, attr_dir)
else -- こっちのケースは通常使用では起こらない
wtd[#wtd+1] = p; node_remove(head, p)
end
end
end
return node_next(p)
end,
}
setmetatable(suppress_hyphenate_ja_aux,
{ __index = function() return node_next end, })
local id_boundary = node.id 'boundary'
local node_new, insert_before = node.direct.new, node.direct.insert_before
local setsubtype = node.direct.setsubtype
local function suppress_hyphenate_ja (h)
start_time_measure 'ltj_hyphenate'
head = to_direct(h)
for i = 1,#wt do wt[i]=nil end
for i = 1,#wtd do wtd[i]=nil end
for i,_ in pairs(ltjs_orig_char_table) do
ltjs_orig_char_table[i] = nil
end
ltjs.list_dir=ltjd_get_dir_count()
do
local p = head
while p do
local pid, prev_chartype = getid(p), 0
-- prev_chartype: 0: not char 1: ALchar 2: JAchar
while pid==id_glyph do
local pc = getchar(p)
if has_attr(p, attr_icflag, 0) and is_ucs_in_japanese_char(p, pc) then
if prev_chartype==1 then
local b = node_new(id_whatsit,sid_user);
setfield(b, 'type', 100); setfield(b, 'user_id', JA_AL_BDD);
insert_before(head, p, b)
end
setlang(p, lang_ja);
ltjs_orig_char_table[p], prev_chartype = pc, 2
elseif prev_chartype==2 then
local b = node_new(id_whatsit,sid_user);
setfield(b, 'type', 100); setfield(b, 'user_id', JA_AL_BDD);
insert_before(head, p, b); prev_chartype = 1
else prev_chartype = 1
end
p = node_next(p); pid = getid(p)
end
p = (suppress_hyphenate_ja_aux[pid])(p)
end
end
stop_time_measure 'ltj_hyphenate'; start_time_measure 'tex_hyphenate'
lang.hyphenate(h, nil)
stop_time_measure 'tex_hyphenate'
return h
end
ltjb.add_to_callback('hyphenate', suppress_hyphenate_ja, 'ltj.hyphenate')
end
-- mode: true iff this function is called from hpack_filter
local set_box_stack_level
do
local ltjs_report_stack_level = ltjs.report_stack_level
local ltjf_font_metric_table = ltjf.font_metric_table
local traverse_glyph = node.direct.traverse_glyph
local cnt_stack = luatexbase.registernumber 'ltj@@stack'
local texget, getvalue = tex.get, node.direct.getdata
function set_box_stack_level(head, mode)
local box_set = 0
if mode then
local cl = (texget 'currentgrouplevel') + 1
for i=1,#wt do
local p = wt[i]
if getvalue(p)==cl then box_set = 1 end; node_free(p)
end
else
for i=1,#wt do node_free(wt[i]) end
end
ltjs_report_stack_level(getcount(cnt_stack) + box_set)
for _,p in pairs(wtd) do node_free(p) end
if ltjs.list_dir == dir_tate then
for p in traverse_glyph(to_direct(head)) do
if getlang(p)==lang_ja and has_attr(p, attr_icflag, 0) then
local pc = ltjs_orig_char_table[p] or getchar(p)
local pf = ltjf_replace_altfont(attr_curtfnt, pc, p)
if ltjf_font_metric_table[pf].vert_activated then
pc = ltjf_font_metric_table[pf].vform[pc]; if pc then setchar(p, pc) end
end
end
end
else
for p in traverse_glyph(to_direct(head)) do
if getlang(p)==lang_ja and has_attr(p, attr_icflag, 0) then
ltjf_replace_altfont(attr_curjfnt, ltjs_orig_char_table[p] or getchar(p), p)
end
end
end
return head
end
end
-- CALLBACKS
ltjb.add_to_callback('hpack_filter',
function (head)
return set_box_stack_level(head, true)
end, 'ltj.set_stack_level', 1)
ltjb.add_to_callback('pre_linebreak_filter',
function (head)
return set_box_stack_level(head, false)
end, 'ltj.set_stack_level', 1)
luatexja.pretreat = {
set_box_stack_level = set_box_stack_level,
orig_char_table = orig_char_table,
}
|
