--
--- luatexja/pretreat.lua
+-- luatexja/ltj-pretreat.lua
--
-luatexbase.provides_module({
- name = 'luatexja.pretreat',
- date = '2011/06/27',
- version = '0.1',
- 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 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 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 getchar = (Dnode ~= node) and Dnode.getchar or function(n) return n.char end
+local getfield = (Dnode ~= node) and Dnode.getfield or function(n, i) return n[i] end
+local getsubtype = (Dnode ~= node) and Dnode.getsubtype or function(n) return n.subtype 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 = Dnode.has_attribute
+local set_attr = Dnode.set_attribute
+local node_traverse = Dnode.traverse
+local node_remove = Dnode.remove
+local node_next = (Dnode ~= node) and Dnode.getnext or node.next
+local node_prev = (Dnode ~= node) and Dnode.getprev or node.prev
+local node_free = Dnode.free
+local node_end_of_math = Dnode.end_of_math
+local tex_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 attr_yablshift = luatexbase.attributes['ltj@yablshift']
-local attr_ykblshift = luatexbase.attributes['ltj@ykblshift']
-local ltjf_font_metric_table = ltjf.font_metric_table
-local ltjc_is_ucs_in_japanese_char = ltjc.is_ucs_in_japanese_char
-local attr_jchar_class = luatexbase.attributes['ltj@charclass']
-local ltjf_find_char_class = ltjf.find_char_class
+local is_ucs_in_japanese_char = ltjc.is_ucs_in_japanese_char_direct
+local ltjf_get_vert_glyph = ltjf.get_vert_glyph
+local ltjf_replace_altfont = ltjf.replace_altfont
+local attr_orig_char = luatexbase.attributes['ltj@origchar']
+local STCK = luatexja.userid_table.STCK
+local DIR = luatexja.userid_table.DIR
+local PROCESSED_BEGIN_FLAG = luatexja.icflag_table.PROCESSED_BEGIN_FLAG
+
+local dir_tate = luatexja.dir_table.dir_tate
------------------------------------------------------------------------
-- MAIN PROCESS STEP 1: replace fonts
------------------------------------------------------------------------
-box_stack_level = 0
--- This is used in jfmglue.lua.
+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, real_head
+ local is_dir_tate
+ local suppress_hyphenate_ja_aux = {}
+ suppress_hyphenate_ja_aux[id_glyph] = function(p)
+ if (has_attr(p, attr_icflag) or 0)<=0 and is_ucs_in_japanese_char(p) then
+ local pc = getchar(p)
+ local pf = ltjf_replace_altfont(has_attr(p, attr_curjfnt) or getfont(p), pc)
+ setfield(p, 'font', pf); set_attr(p, attr_curjfnt, pf)
+ setfield(p, 'subtype', floor(getsubtype(p)*0.5)*2)
+ set_attr(p, attr_orig_char, pc)
+ end
+ return p
+ end
+ suppress_hyphenate_ja_aux[id_math] = function(p)
+ return node_end_of_math(node_next(p)) end
+ suppress_hyphenate_ja_aux[50] = function(p) return p end
+ suppress_hyphenate_ja_aux[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
+ wtd[#wtd+1] = p; node_remove(head, p)
+ end
+ end
+ end
+ return p
+ end
-local function suppress_hyphenate_ja(head)
- local non_math = true
- for p in node_traverse(head) do
- if p.id == id_glyph and non_math 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
- set_attr(p, attr_jchar_class, p.char)
- set_attr(p, attr_yablshift, has_attr(p, attr_ykblshift) or 0)
- p.subtype = floor(p.subtype/2)*2
- end
- elseif p.id == id_math then
- non_math = (p.subtype ~= 0)
+ local function suppress_hyphenate_ja (h)
+ start_time_measure('ltj_hyphenate')
+ head = to_direct(h); real_head = node_next(head)
+ local p = head
+ for i = 1,#wt do wt[i]=nil end
+ for i = 1,#wtd do wtd[i]=nil end
+ ltjs.list_dir=ltjd_get_dir_count()
+ while p do
+ local flag
+ local pfunc = suppress_hyphenate_ja_aux[getid(p)]
+ if pfunc then p = pfunc(p) end
+ p = node_next(p)
end
+ stop_time_measure('ltj_hyphenate'); start_time_measure('tex_hyphenate')
+ lang.hyphenate(h)
+ stop_time_measure('tex_hyphenate')
+ return h
end
- lang.hyphenate(head)
- return head
+
+ luatexbase.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 box_set = false
- local p = head
- local cl = tex.currentgrouplevel + 1
- for p in node.traverse_id(id_whatsit, head) do
- if p.subtype==sid_user and p.user_id==30112 then
- local g = p
- if mode and g.value==cl then box_set = true end
- head, p = node_remove(head, g); node_free(g); break
+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 getfield(p, 'value')==cl then box_set = 1 end; node_free(p)
+ end
+ ltjs.report_stack_level(tex_getcount('ltj@@stack') + box_set)
+ for _,p in pairs(wtd) do
+ node_free(p)
+ end
+ is_dir_tate = ltjs.list_dir == dir_tate
+ if is_dir_tate then
+ for p in Dnode.traverse_id(id_glyph,to_direct(head)) do
+ if (has_attr(p, attr_icflag) or 0)<=0 and has_attr(p, attr_curjfnt)==getfont(p) then
+ local pfn = has_attr(p, attr_curtfnt) or getfont(p)
+ local pc = getchar(p)
+ local pf = ltjf_replace_altfont(pfn, pc)
+ set_attr(p, attr_dir, pc)
+ pc = ltjf_get_vert_glyph(pf, pc) or pc
+ setfield(p, 'char', pc); set_attr(p, attr_orig_char, pc)
+ setfield(p, 'font', pf); set_attr(p, attr_curjfnt, pf)
+ end
end
end
- box_stack_level = tex.getcount('ltj@@stack') + (box_set and 1 or 0)
return head
end
-- CALLBACKS
-luatexbase.add_to_callback('hpack_filter',
+luatexbase.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',
+luatexbase.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')
+
+luatexja.pretreat = {
+ set_box_stack_level = set_box_stack_level,
+}
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