diff options
author | Norbert Preining <preining@logic.at> | 2012-04-24 00:13:14 +0000 |
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committer | Norbert Preining <preining@logic.at> | 2012-04-24 00:13:14 +0000 |
commit | 8f29bdce0bdd08ec81df555e98692d1f288c3289 (patch) | |
tree | c4f9a6b00a587f635e55fc4068c1961780c90591 /Master/texmf-dist/tex/luatex/luatexja/ltj-math.lua | |
parent | 74e624196144ae218a63a4c35672fc7a0e7b18dc (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.lua | 129 |
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) |