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authorNorbert Preining <preining@logic.at>2012-04-24 00:13:14 +0000
committerNorbert Preining <preining@logic.at>2012-04-24 00:13:14 +0000
commit8f29bdce0bdd08ec81df555e98692d1f288c3289 (patch)
treec4f9a6b00a587f635e55fc4068c1961780c90591 /Master/texmf-dist/tex/luatex/luatexja/ltj-math.lua
parent74e624196144ae218a63a4c35672fc7a0e7b18dc (diff)
new package luatexja (24apr)
adapt ctan2tds to deal with it git-svn-id: svn://tug.org/texlive/trunk@26115 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Master/texmf-dist/tex/luatex/luatexja/ltj-math.lua')
-rw-r--r--Master/texmf-dist/tex/luatex/luatexja/ltj-math.lua129
1 files changed, 129 insertions, 0 deletions
diff --git a/Master/texmf-dist/tex/luatex/luatexja/ltj-math.lua b/Master/texmf-dist/tex/luatex/luatexja/ltj-math.lua
new file mode 100644
index 00000000000..8252bac3432
--- /dev/null
+++ b/Master/texmf-dist/tex/luatex/luatexja/ltj-math.lua
@@ -0,0 +1,129 @@
+--
+-- luatexja/math.lua
+--
+luatexbase.provides_module({
+ name = 'luatexja.math',
+ date = '2011/08/14',
+ version = '0.1',
+ description = 'Handling routines for Japanese characters in math mode',
+})
+module('luatexja.math', package.seeall)
+
+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('setwidth'); local ltjw = luatexja.setwidth
+
+local node_new = node.new
+local node_next = node.next
+local node_free = node.free
+local has_attr = node.has_attribute
+local set_attr = node.set_attribute
+
+local attr_jchar_class = luatexbase.attributes['ltj@charclass']
+local attr_icflag = luatexbase.attributes['ltj@icflag']
+local attr_curjfnt = luatexbase.attributes['ltj@curjfnt']
+local attr_jfam = luatexbase.attributes['jfam']
+local attr_yablshift = luatexbase.attributes['ltj@yablshift']
+
+local id_glyph = node.id('glyph')
+local id_hlist = node.id('hlist')
+local id_vlist = node.id('vlist')
+local id_mchar = node.id('math_char')
+local id_sub_box = node.id('sub_box')
+local id_radical = node.id('radical')
+local id_choice = node.id('choice')
+local id_accent = node.id('accent')
+local id_style = node.id('style')
+local id_frac = node.id('fraction')
+local id_simple = node.id('noad')
+local id_sub_mlist = node.id('sub_mlist')
+
+local PROCESSED = 8
+
+local ltjf_font_metric_table = ltjf.font_metric_table
+local ltjf_find_char_class = ltjf.find_char_class
+
+-- table of mathematical characters
+is_math_letters = {}
+
+local conv_jchar_to_hbox_A
+
+-- sty : 0 (display or text), 1 (script), >=2 (scriptscript)
+local function conv_jchar_to_hbox(head, sty)
+ local p = head
+ local bhead = head
+ while p do
+ if p.id == id_simple or p.id == id_accent then
+ p.nucleus = conv_jchar_to_hbox_A(p.nucleus, sty)
+ p.sub = conv_jchar_to_hbox_A(p.sub, sty + 1)
+ p.sup = conv_jchar_to_hbox_A(p.sup, sty + 1)
+ elseif p.id == id_choice then
+ p.display = conv_jchar_to_hbox(p.display, 0)
+ p.text = conv_jchar_to_hbox(p.text, 0)
+ p.script = conv_jchar_to_hbox(p.script, 1)
+ p.scriptscript = conv_jchar_to_hbox(p.scriptscript, 2)
+ elseif p.id == id_frac then
+ p.num = conv_jchar_to_hbox_A(p.num, sty + 1)
+ p.denom = conv_jchar_to_hbox_A(p.denom, sty + 1)
+ elseif p.id == id_radical then
+ p.nucleus = conv_jchar_to_hbox_A(p.nucleus, sty)
+ p.sub = conv_jchar_to_hbox_A(p.sub, sty + 1)
+ p.sup = conv_jchar_to_hbox_A(p.sup, sty + 1)
+ if p.degree then
+ p.degree = conv_jchar_to_hbox_A(p.degree, sty + 1)
+ end
+ elseif p.id == id_style then
+ if p.style == "display'" or p.style == 'display'
+ or p.style == "text'" or p.style == 'text' then
+ sty = 0
+ elseif p.style == "script'" or p.style == 'script' then
+ sty = 1
+ else sty = 2
+ end
+ end
+ p = node.next(p)
+ end
+ return head
+end
+
+conv_jchar_to_hbox_A =
+function (p, sty)
+ if not p then return nil
+ elseif p.id == id_sub_mlist then
+ if p.head then
+ p.head = conv_jchar_to_hbox(p.head, sty)
+ end
+ elseif p.id == id_mchar then
+ local fam = has_attr(p, attr_jfam) or -1
+ if (not is_math_letters[p.char]) and ltjc.is_ucs_in_japanese_char(p) and fam>=0 then
+ local mode = 'mjss'
+ if sty == 0 then mode = 'mjtext'
+ elseif sty == 1 then mode = 'mjscr'
+ end
+ local f = ltjs.get_penalty_table(mode, fam, -1, tex.getcount('ltj@@stack'))
+ if f ~= -1 then
+ local q = node_new(id_sub_box)
+ local r = node_new(id_glyph); r.next = nil
+ r.char = p.char; r.font = f; r.subtype = 256
+ set_attr(r, attr_icflag, PROCESSED)
+ set_attr(r, attr_yablshift, 0)
+ local met = ltjf_font_metric_table[f]
+ local class = ltjf_find_char_class(p.char, met)
+ set_attr(r, attr_jchar_class, class)
+ ltjw.char_data = ltjf.metrics[met.jfm].size_cache[met.size].char_type[class]
+ ltjw.head = r; ltjw.capsule_glyph(r, tex.mathdir , true, met, class);
+ q.head = ltjw.head; node_free(p); p=q;
+ end
+ end
+ end
+ return p
+end
+
+luatexbase.add_to_callback('mlist_to_hlist',
+ function (n, display_type, penalties)
+ local head = conv_jchar_to_hbox(n, 0);
+ head = node.mlist_to_hlist(head, display_type, penalties)
+ return head
+ end,'ltj.mlist_to_hlist', 1)