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-rw-r--r--Master/texmf-dist/tex/luatex/luatexja/ltj-pretreat.lua102
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diff --git a/Master/texmf-dist/tex/luatex/luatexja/ltj-pretreat.lua b/Master/texmf-dist/tex/luatex/luatexja/ltj-pretreat.lua
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index 00000000000..aa8ddf427b3
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+++ b/Master/texmf-dist/tex/luatex/luatexja/ltj-pretreat.lua
@@ -0,0 +1,102 @@
+--
+-- luatexja/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('charrange'); local ltjc = luatexja.charrange
+luatexja.load_module('jfont'); local ltjf = luatexja.jfont
+luatexja.load_module('stack'); local ltjs = luatexja.stack
+
+local has_attr = node.has_attribute
+local set_attr = node.set_attribute
+local unset_attr = node.unset_attribute
+local node_type = node.type
+local node_remove = node.remove
+local node_next = node.next
+local node_free = node.free
+
+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_curjfnt = luatexbase.attributes['ltj@curjfnt']
+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
+
+------------------------------------------------------------------------
+-- MAIN PROCESS STEP 1: replace fonts
+------------------------------------------------------------------------
+box_stack_level = 0
+-- This is used in jfmglue.lua.
+
+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
+ local i = has_attr(p, attr_icflag) or 0
+ if i==0 and ltjc.is_ucs_in_japanese_char(p) then
+ local v = has_attr(p, attr_curjfnt)
+ if v then
+ p.font = v
+ end
+ v = has_attr(p, attr_ykblshift)
+ if v then
+ set_attr(p, attr_yablshift, v)
+ else
+ unset_attr(p, attr_yablshift)
+ end
+ if p.subtype%2==1 then p.subtype = p.subtype - 1 end
+ -- p.lang=lang_ja
+ end
+ elseif p.id == id_math then
+ non_math = (p.subtype ~= 0)
+ end
+ end
+ lang.hyphenate(head)
+ return head
+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
+ end
+ end
+ if box_set then
+ box_stack_level = tex.getcount('ltj@@stack') + 1
+ else
+ box_stack_level = tex.getcount('ltj@@stack')
+ end
+ return head
+end
+
+-- CALLBACKS
+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',
+ 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')