--
--- luatexja/pretreat.lua
+-- ltj-pretreat.lua
--
-luatexbase.provides_module({
- name = 'luatexja.pretreat',
- date = '2012/07/19',
- version = '0.2',
- description = '',
-})
-module('luatexja.pretreat', package.seeall)
-local err, warn, info, log = luatexbase.errwarinf(_NAME)
+luatexja.load_module('base'); local ltjb = luatexja.base
luatexja.load_module('charrange'); local ltjc = luatexja.charrange
-luatexja.load_module('jfont'); local ltjf = luatexja.jfont
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 or function (n) return getfield(n,'lang') end
+
+local pairs = pairs
local floor = math.floor
-local has_attr = node.has_attribute
-local set_attr = node.set_attribute
-local node_traverse = node.traverse
-local node_type = node.type
-local node_remove = node.remove
-local node_next = node.next
-local node_free = node.free
+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.free
+local node_end_of_math = node.direct.end_of_math
local tex_getcount = tex.getcount
local id_glyph = node.id('glyph')
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 ltjf_font_metric_table = ltjf.font_metric_table
-local ltjc_is_ucs_in_japanese_char = ltjc.is_ucs_in_japanese_char
-local attr_orig_char = luatexbase.attributes['ltj@origchar']
+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 or function(n,l) setfield(n,'lang',l) end
+local setfont = node.direct.setfont or function(n,l) setfield(n,'font',l) end
+local setchar = node.direct.setchar or function(n,l) setfield(n,'char',l) end
------------------------------------------------------------------------
-- MAIN PROCESS STEP 1: replace fonts
------------------------------------------------------------------------
-box_stack_level = 0
--- This is used in jfmglue.lua.
-local wt
-
-local function suppress_hyphenate_ja(head)
- local non_math, p = true, head
- wt = {}
- while p do
- --for p in node_traverse(head) do
- if p.id == id_glyph then
- if (has_attr(p, attr_icflag) or 0)<=0 and ltjc_is_ucs_in_japanese_char(p) then
- p.font = has_attr(p, attr_curjfnt) or p.font
- p.subtype = floor(p.subtype*0.5)*2
- set_attr(p, attr_orig_char, p.char)
+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 has_attr(p, attr_icflag)<PROCESSED_BEGIN_FLAG then
+ ltjs.list_dir = has_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 or function(n,l) setfield(n,'subtype',l) end
+ 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
+ local pf = has_attr(p, attr_curjfnt)
+ pf = (pf and pf>0 and pf) or getfont(p)
+ setfont(p, ltjf_replace_altfont(pf, pc))
+ 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
- elseif p.id == id_math then
- while p.id~=id_math do p = node_next(p) end
- elseif p.id == id_whatsit and p.subtype==sid_user and p.user_id==30112 then
- wt[#wt+1] = p; head = node_remove(head, p)
end
- p = node_next(p)
+ stop_time_measure('ltj_hyphenate'); start_time_measure('tex_hyphenate')
+ lang.hyphenate(h, nil)
+ stop_time_measure('tex_hyphenate')
+ return h
end
- lang.hyphenate(head)
- return head
+
+ ltjb.add_to_callback('hyphenate',
+ function (head,tail)
+ return suppress_hyphenate_ja(head)
+ end,'ltj.hyphenate')
end
-- mode: true iff this function is called from hpack_filter
-function set_box_stack_level(head, mode)
+local ltjs_report_stack_level = ltjs.report_stack_level
+local ltjf_font_metric_table = ltjf.font_metric_table
+local font_getfont = font.getfont
+local function set_box_stack_level(head, mode)
local box_set, cl = 0, tex.currentgrouplevel + 1
- for _,p in pairs(wt) do
- if mode and p.value==cl then box_set = 1 end; node_free(p)
+ if mode then
+ for _,p in pairs(wt) do
+ if getfield(p, 'value')==cl then box_set = 1 end; node_free(p)
+ end
+ else
+ for _,p in pairs(wt) do node_free(p) end
+ end
+ ltjs_report_stack_level(tex_getcount('ltj@@stack') + box_set)
+ for _,p in pairs(wtd) do
+ node_free(p)
+ end
+ if ltjs.list_dir == dir_tate then
+ for p in node.direct.traverse_id(id_glyph,to_direct(head)) do
+ if has_attr(p, attr_icflag, 0) and getlang(p)==lang_ja then
+ local nf = ltjf_replace_altfont( has_attr(p, attr_curtfnt) or getfont(p) , ltjs_orig_char_table[p])
+ setfont(p, nf)
+ if ltjf_font_metric_table[nf].vert_activated then
+ local pc = getchar(p)
+ pc = ltjf_font_metric_table[nf].vform[pc]
+ if pc then setchar(p, pc) end
+ end
+ end
+ end
end
- box_stack_level = tex_getcount('ltj@@stack') + box_set
return head
end
-- CALLBACKS
-luatexbase.add_to_callback('hpack_filter',
+ltjb.add_to_callback('hpack_filter',
function (head)
return set_box_stack_level(head, true)
- end,'ltj.hpack_filter_pre',1)
-luatexbase.add_to_callback('pre_linebreak_filter',
+ end,'ltj.set_stack_level',1)
+ltjb.add_to_callback('pre_linebreak_filter',
function (head)
return set_box_stack_level(head, false)
- end,'ltj.pre_linebreak_filter_pre',1)
-luatexbase.add_to_callback('hyphenate',
- function (head,tail)
- return suppress_hyphenate_ja(head)
- end,'ltj.hyphenate')
+ end,'ltj.set_stack_level',1)
+
+luatexja.pretreat = {
+ set_box_stack_level = set_box_stack_level,
+ orig_char_table = orig_char_table,
+}
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