--- error messages
-function ltj.error(s)
- tex.error("LuaTeX-ja error: " .. s );
-end
-
--- procedures for loading Japanese font metric
-jfm={}; jfm.char_type={}; jfm.glue={}; jfm.kern={}
-
-function jfm.define_char_type(t,lt)
- if not jfm.char_type[t] then jfm.char_type[t]={} end
- jfm.char_type[t].chars=lt
-end
-function jfm.define_type_dim(t,l,w,h,d,i)
- if not jfm.char_type[t] then jfm.char_type[t]={} end
- jfm.char_type[t].width=w; jfm.char_type[t].height=h;
- jfm.char_type[t].depth=d; jfm.char_type[t].italic=i; jfm.char_type[t].left=l
-end
-function jfm.define_glue(b,a,w,st,sh)
- local j=b*0x800+a
- if not jfm.glue[j] then jfm.glue[j]={} end
- jfm.glue[j].width=w; jfm.glue[j].stretch=st;
- jfm.glue[j].shrink=sh
-end
-function jfm.define_kern(b,a,w)
- local j=b*0x800+a
- if not jfm.kern[j] then jfm.kern[j]=w end
-end
-
--- procedures for \loadjfontmetric
-ltj.metrics={} -- this table stores all metric information
+require('lualibs')
+require('luatexja.rmlgbm'); local ltjr = luatexja.rmlgbm -- must be 1st
+require('luatexja.base'); local ltjb = luatexja.base
+require('luatexja.charrange'); local ltjc = luatexja.charrange
+require('luatexja.jfont'); local ltjf = luatexja.jfont
+require('luatexja.inputbuf'); local ltji = luatexja.inputbuf
+require('luatexja.jfmglue'); local ltjj = luatexja.jfmglue
+require('luatexja.math'); local ltjm = luatexja.math
+require('luatexja.pretreat'); local ltjp = luatexja.pretreat
+require('luatexja.stack'); local ltjs = luatexja.stack
+require('luatexja.setwidth'); local ltjw = luatexja.setwidth
+
+local node_type = node.type
+local node_new = node.new
+local node_prev = node.prev
+local node_next = node.next
+local has_attr = node.has_attribute
+local node_insert_before = node.insert_before
+local node_insert_after = node.insert_after
+local node_hpack = node.hpack
+
+local id_penalty = node.id('penalty')
+local id_glyph = node.id('glyph')
+local id_glue_spec = node.id('glue_spec')
+local id_glue = node.id('glue')
+local id_kern = node.id('kern')
+local id_hlist = node.id('hlist')
+local id_vlist = node.id('vlist')
+local id_rule = node.id('rule')
+local id_math = node.id('math')
+local id_whatsit = node.id('whatsit')
+local sid_user = node.subtype('user_defined')
+
+local attr_jchar_class = luatexbase.attributes['ltj@charclass']
+local attr_curjfnt = luatexbase.attributes['ltj@curjfnt']
+local attr_yablshift = luatexbase.attributes['ltj@yablshift']
+local attr_icflag = luatexbase.attributes['ltj@icflag']
+local cat_lp = luatexbase.catcodetables['latex-package']
+
+local ITALIC = 1
+local PACKED = 2
+local KINSOKU = 3
+local FROM_JFM = 4
+local LINE_END = 5
+local KANJI_SKIP = 6
+local XKANJI_SKIP = 7
+local PROCESSED = 8
+local IC_PROCESSED = 9
+local BOXBDD = 15
+
+------------------------------------------------------------------------
+-- naming:
+-- ltj.ext_... : called from \directlua{}
+-- ltj.int_... : called from other Lua codes, but not from \directlua{}
+-- (other) : only called from this file
-function ltj.loadjfontmetric()
- if string.len(jfm.name)==0 then
- ltj.error("the key of font metric is null"); return nil
- elseif ltj.metrics[jfm.name] then
- ltj.error("the metric '" .. jfm.name .. "' is already loaded"); return nil
- end
- ltj.metrics[jfm.name]={}
- if jfm.dir~='yoko' then
- ltj.error("jfm.dir must be 'yoko'"); return nil
- end
- ltj.metrics[jfm.name].dir=jfm.dir
- ltj.metrics[jfm.name].zw=jfm.zw
- ltj.metrics[jfm.name].zh=jfm.zh
- ltj.metrics[jfm.name].char_type=jfm.char_type
- ltj.metrics[jfm.name].glue=jfm.glue
- ltj.metrics[jfm.name].kern=jfm.kern
-end
-
-function ltj.find_char_type(c,metrickey)
--- c: character code, metrickey: key
- for i, v in pairs(ltj.metrics[metrickey].char_type) do
- if i~=0 then
- for j,w in pairs(v.chars) do
- if w==c then return i; end
- end
+-- error messages
+function ltj.error(s,t)
+ tex.error('LuaTeX-ja error: ' .. s ,t)
+end
+
+-- Three aux. functions, bollowed from tex.web
+local unity=65536
+function print_scaled(s)
+ local out=''
+ local delta=10
+ if s<0 then
+ out=out..'-'; s=-s
+ end
+ out=out..tostring(math.floor(s/unity)) .. '.'
+ s=10*(s%unity)+5
+ repeat
+ if delta>unity then s=s+32768-50000 end
+ out=out .. tostring(math.floor(s/unity))
+ s=10*(s%unity)
+ delta=delta*10
+ until s<=delta
+ return out
+end
+
+local function print_glue(d,order)
+ local out=print_scaled(d)
+ if order>0 then
+ out=out..'fi'
+ while order>1 do
+ out=out..'l'; order=order-1
end
- end
- return 0
-end
-
--- procedures for \jfont command.
-function ltj.jfontdefA(b)
- ltj.fntbki=font.current()
- ltj.cstemp=token.csname_name(token.get_next())
- tex.sprint('\\csname ' .. ltj.cstemp .. '\\endcsname\\csname @jfont\\endcsname')
- -- A trick to get font id associated of the argument of \jfont.
- -- font.id() does not seem to work in my environment...
-end
-function ltj.jfontdefB(s) -- for horizontal font
- if not ltj.metrics[s] then
- ltj.error("metric named '" .. s .. "' didn't loaded")
- return
- end
- local i = ltj.transform_jfont(font.current(), s)
- tex.sprint('\\expandafter\\def\\csname ' .. ltj.cstemp .. '\\endcsname'
- .. '{\\csname luatexja@curjfnt\\endcsname=' .. i
- .. '\\zw=' .. font.fonts[i].parameters.quad .. 'sp'
- .. '\\zh=' .. font.fonts[i].parameters.x_height .. 'sp\\relax}')
- font.current(ltj.fntbki); ltj.fntbk = {}; ltj.cstemp = {}
-end
-
--- "transform" font according to a font metric
-function ltj.transform_jfont(index,metrickey)
- local f = {}
- local of=font.fonts[index]
- f.name = of.name
- f.fullname = metrickey
- f.size = of.size
- f.parameters = {}
- f.parameters.quad=tex.round(f.size*ltj.metrics[metrickey].zw)
- f.parameters.x_height=tex.round(f.size*ltj.metrics[metrickey].zh)
- f.designsize = of.designsize
- f.type = 'virtual'
- f.characters = {}
- f.fonts = { { id = index } }
- for i,v in pairs(of.characters) do
- f.characters[i]={}
- local ci = ltj.metrics[metrickey].char_type[ltj.find_char_type(i,metrickey)]
- if ci.left~=0.0 then
- f.characters[i].commands = {
- {'right', tex.round(-ci.left*f.size)},
- {'char',i}
- }
- else
- f.characters[i].commands = { {'char',i} }
+ else
+ out=out..'pt'
+ end
+ return out
+end
+
+local function print_spec(p)
+ local out=print_scaled(p.width)..'pt'
+ if p.stretch~=0 then
+ out=out..' plus '..print_glue(p.stretch,p.stretch_order)
+ end
+ if p.shrink~=0 then
+ out=out..' minus '..print_glue(p.shrink,p.shrink_order)
+ end
+return out
+end
+
+function math.two_add(a,b) return a+b end
+function math.two_average(a,b) return (a+b)/2 end
+
+---- table: charprop_stack_table [stack_level][chr_code].{pre|post|xsp}
+
+------------------------------------------------------------------------
+-- CODE FOR GETTING/SETTING PARAMETERS
+------------------------------------------------------------------------
+
+-- EXT: print parameters that don't need arguments
+function ltj.ext_get_parameter_unary(k)
+ if k == 'yalbaselineshift' then
+ tex.write(print_scaled(tex.getattribute('ltj@yablshift'))..'pt')
+ elseif k == 'yjabaselineshift' then
+ tex.write(print_scaled(tex.getattribute('ltj@ykblshift'))..'pt')
+ elseif k == 'kanjiskip' then
+ tex.write(print_spec(ltjs.get_skip_table('kanjiskip', tex.getcount('ltj@@stack'))))
+ elseif k == 'xkanjiskip' then
+ tex.write(print_spec(ltjs.get_skip_table('xkanjiskip', tex.getcount('ltj@@stack'))))
+ elseif k == 'jcharwidowpenalty' then
+ tex.write(ltjs.get_penalty_table('jwp', 0, 0, tex.getcount('ltj@@stack')))
+ elseif k == 'autospacing' then
+ tex.write(tex.getattribute('ltj@autospc'))
+ elseif k == 'autoxspacing' then
+ tex.write(tex.getattribute('ltj@autoxspc'))
+ elseif k == 'differentjfm' then
+ if luatexja.jfmglue.diffmet_rule == math.max then
+ tex.write('large')
+ elseif luatexja.jfmglue.diffmet_rule == math.min then
+ tex.write('small')
+ elseif luatexja.jfmglue.diffmet_rule == math.two_average then
+ tex.write('average')
+ elseif luatexja.jfmglue.diffmet_rule == math.two_add then
+ tex.write('both')
+ else -- This can't happen.
+ tex.write('???')
end
- f.characters[i].italic = tex.round(ci.italic*f.size)
- f.characters[i].width = tex.round(ci.width*f.size)
- f.characters[i].height = tex.round(ci.height*f.size)
- f.characters[i].depth = tex.round(ci.depth*f.size)
- end
- if not f.characters[0x3000] then
- f.characters[0x3000]={}
- local ci = ltj.metrics[metrickey].char_type[ltj.find_char_type(0x3000,metrickey)]
- f.characters[0x3000].commands = {{'right', tex.round(ci.width*f.size)} }
- f.characters[0x3000].italic = tex.round(ci.italic*f.size)
- f.characters[0x3000].width = tex.round(ci.width*f.size)
- f.characters[0x3000].height = tex.round(ci.height*f.size)
- f.characters[0x3000].depth = tex.round(ci.depth*f.size)
end
- return font.define(f)
end
-
--- Replace font in nodes which character code is in the range of
--- Japanese characters, using two attributes
-function ltj.replace_ja_font(head)
- local p=head
- while p do
- if node.type(p.id)=='glyph' then
- if ltj.is_ucs_in_japanese_char(p.char) then
- local v = node.has_attribute(p,luatexbase.attributes['luatexja@curjfnt'])
- if v then p.font=v end
- v=node.has_attribute(p,luatexbase.attributes['luatexja@ykblshift'])
- if v then
- node.set_attribute(p,luatexbase.attributes['luatexja@yablshift'],v)
- else
- node.unset_attribute(p,luatexbase.attributes['luatexja@yablshift'])
- end
- end
+-- EXT: print parameters that need arguments
+function ltj.ext_get_parameter_binary(k,c)
+ if k == 'jacharrange' then
+ if c<0 or c>216 then
+ ltjb.package_error('luatexja',
+ 'invalid character range number (' .. c .. ')',
+ 'A character range number should be in the range 0..216,\n'..
+ 'So I changed this one to zero.')
+ c=0
end
- p=node.next(p)
- end
- return head
-end
-
-
--- return true if and only if p is a Japanese character node
-function ltj.is_japanese_glyph_node(p)
- if not p then return false
- elseif node.type(p.id)~='glyph' then return false
- elseif p.font==node.has_attribute(p,luatexbase.attributes['luatexja@curjfnt']) then
- return true
- else return false
- end
-end
-
----------- Kinsoku
-----------
-ltj.penalty_table = {}
-function ltj.set_penalty_table(m,c,p)
- if not ltj.penalty_table[c] then ltj.penalty_table[c]={} end
- if m=='pre' then
- ltj.penalty_table[c].pre=p
- elseif m=='post' then
- ltj.penalty_table[c].post=p
- end
-end
-
-ltj.inhibit_xsp_table = {}
-function ltj.set_inhibit_xsp_table(c,p)
- ltj.inhibit_xsp_table[c]=p
-end
-
-----------
-----------
-function ltj.create_ihb_node()
- local g=node.new(node.id('whatsit'), node.subtype('user_defined'))
- g.user_id=30111; g.type=number; g.value=1
- node.write(g)
-end
-
--- The fullname field of virtual font expresses its metric
-function ltj.find_size_metrickey(p)
- if ltj.is_japanese_glyph_node(p) then
- return font.fonts[p.font].size, font.fonts[p.font].fullname
- else
- return nil, nil
- end
-end
-
-function ltj.new_jfm_glue(size,mt,bc,ac)
--- mt: metric key, bc, ac: char classes
- local g=nil
- local h
- local w=bc*0x800+ac
- if ltj.metrics[mt].glue[w] then
- h=node.new(node.id('glue_spec'))
- h.width =tex.round(size*ltj.metrics[mt].glue[w].width)
- h.stretch=tex.round(size*ltj.metrics[mt].glue[w].stretch)
- h.shrink =tex.round(size*ltj.metrics[mt].glue[w].shrink)
- h.stretch_order=0; h.shrink_order=0
- g=node.new(node.id('glue'))
- g.subtype=0; g.spec=h; return g
- elseif ltj.metrics[mt].kern[w] then
- g=node.new(node.id('kern'))
- g.subtype=0; g.kern=tex.round(size*ltj.metrics[mt].kern[w]); return g
+ tex.write(ltjc.get_range_setting(c))
else
- return nil
- end
-end
-
--- The fullname field of virtual font expresses its metric
-function ltj.calc_between_two_jchar(q,p)
- -- q, p: node (possibly null)
- local ps,pm,qs,qm,g,h
- if not p then -- q is the last node
- qs, qm = ltj.find_size_metrickey(q)
- if not qm then
- return nil
- else
- g=ltj.new_jfm_glue(qs,qm,
- ltj.find_char_type(q.char,qm),
- ltj.find_char_type('boxbdd',qm))
- end
- elseif not q then
- -- p is the first node etc.
- if q then print(node.type(q.id)) end
- ps, pm = ltj.find_size_metrickey(p)
- if not pm then
- return nil
- else
- g=ltj.new_jfm_glue(ps,pm,
- ltj.find_char_type('boxbdd',pm),
- ltj.find_char_type(p.char,pm))
+ if c<0 or c>0x10FFFF then
+ ltjb.package_error('luatexja',
+ 'bad character code (' .. c .. ')',
+ 'A character number must be between -1 and 0x10ffff.\n'..
+ "(-1 is used for denoting `math boundary')\n"..
+ 'So I changed this one to zero.')
+ c=0
end
- else -- p and q are not nil
- qs, qm = ltj.find_size_metrickey(q)
- ps, pm = ltj.find_size_metrickey(p)
- if (not pm) and (not qm) then
- -- Both p and q are NOT Japanese glyph node
- return nil
- elseif (qs==ps) and (qm==pm) then
- -- Both p and q are Japanese glyph node, and same metric and size
- g=ltj.new_jfm_glue(ps,pm,
- ltj.find_char_type(q.char,qm),
- ltj.find_char_type(p.char,pm))
- elseif not qm then
- -- q is not Japanese glyph node
- g=ltj.new_jfm_glue(ps,pm,
- ltj.find_char_type('jcharbdd',pm),
- ltj.find_char_type(p.char,pm))
- elseif not pm then
- -- p is not Japanese glyph node
- g=ltj.new_jfm_glue(qs,qm,
- ltj.find_char_type(q.char,qm),
- ltj.find_char_type('jcharbdd',qm))
- else
- g=ltj.new_jfm_glue(qs,qm,
- ltj.find_char_type(q.char,qm),
- ltj.find_char_type('diffmet',qm))
- h=ltj.new_jfm_glue(ps,pm,
- ltj.find_char_type('diffmet',pm),
- ltj.find_char_type(p.char,pm))
- g=ltj.calc_between_two_jchar_aux(g,h)
+ if k == 'prebreakpenalty' then
+ tex.write(ltjs.get_penalty_table('pre', c, 0, tex.getcount('ltj@@stack')))
+ elseif k == 'postbreakpenalty' then
+ tex.write(ltjs.get_penalty_table('post', c, 0, tex.getcount('ltj@@stack')))
+ elseif k == 'kcatcode' then
+ tex.write(ltjs.get_penalty_table('kcat', c, 0, tex.getcount('ltj@@stack')))
+ elseif k == 'chartorange' then
+ tex.write(ltjc.char_to_range(c))
+ elseif k == 'jaxspmode' or k == 'alxspmode' then
+ tex.write(ltjs.get_penalty_table('xsp', c, 3, tex.getcount('ltj@@stack')))
end
end
- return g
end
-
--- In the beginning of a hbox created by line breaking, there are the followings:
--- o a hbox by \parindent
--- o a whatsit node which contains local paragraph materials.
--- When we insert jfm glues, we ignore these nodes.
-function ltj.is_parindent_box(p)
- if node.type(p.id)=='hlist' then
- return (p.subtype==3)
- -- hlist (subtype=3) is a box by \parindent
- elseif node.type(p.id)=='whatsit' then
- return (p.subtype==node.subtype('local_par'))
- end
-end
-
-function ltj.add_kinsoku_penalty(head,p)
- local c = p.char
- if not ltj.penalty_table[c] then return false; end
- if ltj.penalty_table[c].pre then
- local q = node.prev(p)
- if (not q) and node.type(q.id)=='penalty' then
- q.penalty=q.penalty+ltj.penalty_table[c].pre
- else
- q=node.new(node.id('penalty'))
- q.penalty=ltj.penalty_table[c].pre
- node.insert_before(head,p,q)
- end
- end
- if ltj.penalty_table[c].post then
- local q = node.next(p)
- if (not q) and node.type(q.id)=='penalty' then
- q.penalty=q.penalty+ltj.penalty_table[c].post
- return false
- else
- q=node.new(node.id('penalty'))
- q.penalty=ltj.penalty_table[c].post
- node.insert_after(head,p,q)
- return true
- end
- end
+-- EXT: print \global if necessary
+function ltj.ext_print_global()
+ if ltj.isglobal=='global' then tex.sprint(cat_lp, '\\global') end
end
--- Insert jfm glue: main routine
-
-function ltj.insert_jfm_glue(head)
+-- main process
+-- mode = true iff main_process is called from pre_linebreak_filter
+local function main_process(head, mode, dir)
local p = head
- local q = nil -- the previous node of p
- local g
- local ihb_flag = false
- if not p then
- return head
- end
- while p and ltj.is_parindent_box(p) do p=node.next(p) end
- while p do
- if node.type(p.id)=='whatsit' and p.subtype==44
- and p.user_id==30111 then
- g=p; p=node.next(p);
- ihb_flag=true; head,p=node.remove(head, g)
- else
- g=ltj.calc_between_two_jchar(q,p)
- if g and (not ihb_flag) then
- h = node.insert_before(head,p,g)
- if not q then head=h end
- -- If p is the first node (=head), the skip is inserted
- -- before head. So we must change head.
- end
- q=p; ihb_flag=false
- if ltj.is_japanese_glyph_node(p)
- and ltj.add_kinsoku_penalty(head,p) then
- p=node.next(p)
- end
- p=node.next(p)
- end
- end
- -- Insert skip after the last node
- g=ltj.calc_between_two_jchar(q,nil)
- if g then
- h = node.insert_after(head,q,g)
- end
- return head
+ p = ltjj.main(p,mode)
+ p = ltjw.set_ja_width(p, dir)
+ return p
end
-
--- Insert \xkanjiskip at the boundaries between Japanese characters
--- and non-Japanese characters.
--- We also insert \kanjiskip between Kanji in this function.
-ltj.kanji_skip={}
-ltj.xkanji_skip={}
-ltj.insert_skip=0
-ltj.cx = nil
- -- 0: ``no_skip'', 1: ``after_schar'', 2: ``after_wchar''
--- These variables are ``global'', because we want to avoid to write one large function.
-function ltj.insert_kanji_skip(head)
- if tex.count['luatexja@autospc']==0 then
- ltj.kanji_skip=tex.skip['kanjiskip']
+-- debug
+local debug_depth
+function ltj.ext_show_node_list(head,depth,print_fn)
+ debug_depth = depth
+ if head then
+ while head do
+ debug_show_node_X(head, print_fn); head = node_next(head)
+ end
else
- ltj.kanji_skip=node.new(node.id('glue_spec'))
- ltj.kanji_skip.width=0; ltj.kanji_skip.stretch=0; ltj.kanji_skip.shrink=0
+ print_fn(debug_depth .. ' (null list)')
end
- if tex.count['luatexja@autoxspc']==0 then
- ltj.xkanji_skip=tex.skip['xkanjiskip']
+end
+function ltj.ext_show_node(head,depth,print_fn)
+ debug_depth = depth
+ if head then
+ debug_show_node_X(head, print_fn)
else
- ltj.xkanji_skip=node.new(node.id('glue_spec'))
- ltj.xkanji_skip.width=0; ltj.xkanji_skip.stretch=0; ltj.xkanji_skip.shrink=0
- end
- local p=head -- 「現在のnode」
- local q=nil -- pの一つ前
- ltj.insert_skip=0
- while p do
- if node.type(p.id)=='glyph' then
- repeat
- ltj.insks_around_char(head,q,p)
- q=p; p=node.next(p)
- until (not p) or node.type(p.id)~='glyph'
- else
- if node.type(p.id) == 'hlist' then
- ltj.insks_around_hbox(head,q,p)
- elseif node.type(p.id) == 'penalty' then
- ltj.insks_around_penalty(head,q,p)
- elseif node.type(p.id) == 'kern' then
- ltj.insks_around_kern(head,q,p)
- elseif node.type(p.id) == 'math' then
- ltj.insks_around_math(head,q,p)
- elseif node.type(p.id) == 'ins' or node.type(p.id) == 'mark'
- or node.type(p.id) == 'adjust'
- or node.type(p.id) == 'whatsit' then
- -- do nothing
- p=p
- else
- -- rule, disc, glue, margin_kern
- ltj.insert_skip=0
+ print_fn(debug_depth .. ' (null list)')
+ end
+end
+function debug_show_node_X(p,print_fn)
+ local k = debug_depth
+ local s
+ local pt=node_type(p.id)
+ local base = debug_depth .. string.format('%X', has_attr(p,attr_icflag) or 0)
+ .. ' ' .. pt .. ' ' .. tostring(p.subtype )
+ if pt == 'glyph' then
+ s = base .. ' ' .. utf.char(p.char) .. ' ' .. tostring(p.font)
+ .. ' (' .. print_scaled(p.height) .. '+'
+ .. print_scaled(p.depth) .. ')x' .. print_scaled(p.width)
+ print_fn(s)
+ elseif pt=='hlist' then
+ s = base .. '(' .. print_scaled(p.height) .. '+'
+ .. print_scaled(p.depth) .. ')x' .. print_scaled(p.width)
+ if p.shift~=0 then
+ s = s .. ', shifted ' .. print_scaled(p.shift)
+ end
+ if p.glue_sign >= 1 then
+ s = s .. ' glue set '
+ if p.glue_sign == 2 then s = s .. '-' end
+ s = s .. tostring(math.floor(p.glue_set*10000)/10000)
+ if p.glue_order == 0 then
+ s = s .. 'pt'
+ else
+ s = s .. 'fi'
+ for i = 2, p.glue_order do s = s .. 'l' end
end
- q=p; p=node.next(p)
end
- end
- return head
-end
-
--- Insert \xkanjiskip before p, a glyph node
--- TODO; ligature
-function ltj.insks_around_char(head,q,p)
- local a=ltj.inhibit_xsp_table[p.char]
- if ltj.is_japanese_glyph_node(p) then
- ltj.cx=p.char
- if ltj.is_japanese_glyph_node(q) then
- local g = node.new(node.id('glue'))
- g.subtype=0; g.spec=node.copy(ltj.kanji_skip)
- node.insert_before(head,p,g)
- elseif ltj.insert_skip==1 then
- ltj.insert_akxsp(head,q)
+ if has_attr(p, attr_icflag, PACKED) then
+ s = s .. ' (packed)'
end
- ltj.insert_skip=2
- else
- if not a then a=3 end
- if ltj.insert_skip==2 then
- ltj.insert_kaxsp(head,q,a)
+ print_fn(s)
+ local q = p.head
+ debug_depth=debug_depth.. '.'
+ while q do
+ debug_show_node_X(q, print_fn); q = node_next(q)
end
- if a>=2 then
- ltj.insert_skip=1
- else
- ltj.insert_skip=0
+ debug_depth=k
+ elseif pt == 'glue' then
+ s = base .. ' ' .. print_spec(p.spec)
+ if has_attr(p, attr_icflag)==FROM_JFM then
+ s = s .. ' (from JFM)'
+ elseif has_attr(p, attr_icflag)==KANJI_SKIP then
+ s = s .. ' (kanjiskip)'
+ elseif has_attr(p, attr_icflag)==XKANJI_SKIP then
+ s = s .. ' (xkanjiskip)'
end
- end
-end
-
-function ltj.insert_akxsp(head,q)
- local f = ltj.inhibit_xsp_table[ltj.cx]
- local g
- if f then
- if f<=1 then return end
- end
- g = node.new(node.id('glue'))
- g.subtype=0; g.spec=node.copy(ltj.xkanji_skip)
- node.insert_after(head,q,g)
-end
-
-function ltj.insert_kaxsp(head,q,a)
- local g=true
- local f=ltj.inhibit_xsp_table[ltj.cx]
- if a%2 == 1 then
- if f then
- if f%2==0 then g=false end
+ print_fn(s)
+ elseif pt == 'kern' then
+ s = base .. ' ' .. print_scaled(p.kern) .. 'pt'
+ if p.subtype==2 then
+ s = s .. ' (for accent)'
+ elseif has_attr(p, attr_icflag)==IC_PROCESSED then
+ s = s .. ' (italic correction)'
+ -- elseif has_attr(p, attr_icflag)==ITALIC then
+ -- s = s .. ' (italic correction)'
+ elseif has_attr(p, attr_icflag)==FROM_JFM then
+ s = s .. ' (from JFM)'
+ elseif has_attr(p, attr_icflag)==LINE_END then
+ s = s .. " (from 'lineend' in JFM)"
end
- else
- g=false
- end
- if g then
- g = node.new(node.id('glue'))
- g.subtype=0; g.spec=node.copy(ltj.xkanji_skip)
- node.insert_after(head,q,g)
- end
-end
-
--- Return first and last glyph nodes in a hbox
-ltj.first_char = nil
-ltj.last_char = nil
-ltj.find_first_char = nil
-function ltj.check_box(bp)
- local p, flag
- p=bp; flag=false
- while p do
- if node.type(p.id)=='glyph' then
- repeat
- if ltj.find_first_char then
- ltj.first_char=p; ltj.find_first_char=false
- end
- ltj.last_char=p; flag=true; p=node.next(p)
- if not p then return flag end
- until node.type(p.id)~='glyph'
+ print_fn(s)
+ elseif pt == 'penalty' then
+ s = base .. ' ' .. tostring(p.penalty)
+ if has_attr(p, attr_icflag)==KINSOKU then
+ s = s .. ' (for kinsoku)'
end
- if node.type(p.id)=='hlist' then
- flag=true
- if p.shift==0 then
- if ltj.check_box(p.head) then flag=true end
- else if ltj.find_first_char then
- ltj.find_first_char=false
- else
- ltj.last_char=nil
- end
- end
- elseif node.type(p.id) == 'ins' or node.type(p.id) == 'mark'
- or node.type(p.id) == 'adjust'
- or node.type(p.id) == 'whatsit' or node.type(p.id) == 'penalty' then
- p=p
+ print_fn(s)
+ elseif pt == 'whatsit' then
+ s = base .. ' subtype: ' .. tostring(p.subtype)
+ if p.subtype==sid_user then
+ s = s .. ' user_id: ' .. p.user_id .. ' ' .. p.value
else
- flag=true
- if ltj.find_first_char then
- ltj.find_first_char=false
- else
- ltj.last_char=nil
- end
+ s = s .. node.subtype(p.subtype)
end
- p=node.next(p)
- end
- return flag
-end
-
--- Insert \xkanjiskip around p, an hbox
-function ltj.insks_around_hbox(head,q,p)
- if p.shift==0 then
- ltj.find_first_char=true
- if ltj.check_box(p.head) then
- -- first char
- if ltj.is_japanese_glyph_node(ltj.first_char) then
- ltj.cx=ltj.first_char.char
- if ltj.insert_skip==1 then
- ltj.insert_akxsp(head,q)
- elseif ltj.insert_skip==2 then
- local g = node.new(node.id('glue'))
- g.subtype=0; g.spec=node.copy(ltj.kanji_skip)
- node.insert_before(head,p,g)
- end
- ltj.insert_skip=2
- elseif ltj.first_char then
- local a=ltj.inhibit_xsp_table[ltj.first_char.char]
- if not a then a=3 end
- if ltj.insert_skip==2 then
- local g = node.new(node.id('glue'))
- g.subtype=0; g.spec=node.copy(ltj.kanji_skip)
- node.insert_after(head,q,g)
- end
- if a>=2 then
- ltj.insert_skip=1
- else
- ltj.insert_skip=0
- end
- end
- -- last char
- if ltj.is_japanese_glyph_node(ltj.last_char) then
- if ltj.is_japanese_glyph_node(node.next(p)) then
- local g = node.new(node.id('glue'))
- g.subtype=0; g.spec=node.copy(ltj.kanji_skip)
- node.insert_after(head,p,g)
- end
- ltj.insert_skip=2
- elseif ltj.last_char then
- local a=ltj.inhibit_xsp_table[ltj.last_char.char]
- if not a then a=3 end
- if a>=2 then
- ltj.insert_skip=1
- else
- ltj.insert_skip=0
- end
- else ltj.insert_skip=0
- end
- else ltj.insert_skip=0
+ print_fn(s)
+ -------- math node --------
+ elseif pt=='noad' then
+ s = base ; print_fn(s)
+ if p.nucleus then
+ debug_depth = k .. 'N'; debug_show_node_X(p.nucleus, print_fn);
end
- else ltj.insert_skip=0
- end
-end
-
--- Insert \xkanjiskip around p, a penalty
-function ltj.insks_around_penalty(head,q,p)
- local r=node.next(p)
- if (not r) and node.type(r.id)=='glyph' then
- local a=ltj.inhibit_xsp_table[r.char]
- if ltj.is_japanese_glyph_node(r) then
- ltj.cx=r.char
- if ltj.is_japanese_glyph_node(p) then
- local g = node.new(node.id('glue'))
- g.subtype=0; g.spec=node.copy(ltj.kanji_skip)
- node.insert_before(head,r,g)
- elseif ltj.insert_skip==1 then
- ltj.insert_akxsp(head,p)
- end
- q=p; p=node.next(p)
- ltj.insert_skip=2
- else
- if not a then a=3 end
- if ltj.insert_skip==2 then
- ltj.insert_kaxsp(head,p,a)
- end
- if a>=2 then
- ltj.insert_skip=1
- else
- ltj.insert_skip=0
- end
+ if p.sup then
+ debug_depth = k .. '^'; debug_show_node_X(p.sup, print_fn);
end
- end
-end
-
--- Insert \xkanjiskip around p, a kern
-function ltj.insks_around_kern(head,q,p)
- if p.subtype==1 then -- \kern or \/
- if node.has_attribute(p,luatexbase.attributes['luatexja@icflag']) then
- p=p -- p is a kern from \/: do nothing
- else
- ltj.insert_skip=0
+ if p.sub then
+ debug_depth = k .. '_'; debug_show_node_X(p.sub, print_fn);
end
- elseif p.subtype==2 then -- \accent: We ignore the accent character.
- local v = node.next(node.next(node.next(p)))
- if v and node.type(v.id)=='glyph' then
- ltj.insks_around_char(head,q,v)
+ debug_depth = k;
+ elseif pt=='math_char' then
+ s = base .. ' fam: ' .. p.fam .. ' , char = ' .. utf.char(p.char)
+ print_fn(s)
+ elseif pt=='sub_box' then
+ print_fn(base)
+ if p.head then
+ debug_depth = k .. '.'; debug_show_node_X(p.head, print_fn);
end
- end
-end
-
--- Insert \xkanjiskip around p, a math_node
-function ltj.insks_around_math(head,q,p)
- local a=ltj.inhibit_xsp_table['math']
- if not a then a=3 end
- if (p.subtype==0) and (ltj.insert_skip==2) then
- ltj.insert_kaxsp(head,q,a)
- ltj.insert_skip=0
else
- ltj.insert_skip=1
+ print_fn(base)
end
+ p=node_next(p)
end
--- Shift baseline
-function ltj.baselineshift(head)
- local p=head
- local m=false -- is in math mode?
- while p do
- local v=node.has_attribute(p,luatexbase.attributes['luatexja@yablshift'])
- if v then
- if node.type(p.id)=='glyph' then
- p.yoffset=p.yoffset-v
- elseif node.type(p.id)=='math' then
- m=(p.subtype==0)
- end
- if m then -- boxes and rules are shifted only in math mode
- if node.type(p.id)=='hlist' or node.type(p.id)=='vlist' then
- p.shift=p.shift+v
- elseif node.type(p.id)=='rule' then
- p.height=p.height-v; p.depth=p.depth+v
- end
- end
- end
- p=node.next(p)
- end
- return head
-end
-
-
--- main process
-function ltj.main_process(head)
- local p = head
- p = ltj.insert_jfm_glue(p)
- p = ltj.insert_kanji_skip(p)
- p = ltj.baselineshift(p)
- return p
-end
-
---- the following function is modified from jafontspec.lua (by K. Maeda).
---- Instead of "%", we use U+FFFFF for suppressing spaces.
-utf = unicode.utf8
-function ltj.process_input_buffer(buffer)
--- print(utf.byte(buffer, utf.len(buffer)))
- if utf.len(buffer) > 0
- and ltj.is_ucs_in_japanese_char(utf.byte(buffer, utf.len(buffer))) then
- buffer = buffer .. string.char(0xF3,0xBF,0xBF,0xBF) -- U+FFFFF
- end
- return buffer
-end
-
-
----------- Hyphenate
---
-function ltj.suppress_hyphenate_ja(head)
- local p=head
- while p do
- if node.type(p.id)=='glyph' and ltj.is_ucs_in_japanese_char(p.char) then
- local v = node.has_attribute(p,luatexbase.attributes['luatexja@curjfnt'])
- if v then p.font=v end
- v=node.has_attribute(p,luatexbase.attributes['luatexja@ykblshift'])
- if v then
- node.set_attribute(p,luatexbase.attributes['luatexja@yablshift'],v)
- else
- node.unset_attribute(p,luatexbase.attributes['luatexja@yablshift'])
- end
- p.lang=ltj.ja_lang_number
- end
- p=node.next(p)
- end
- lang.hyphenate(head)
-end
+-- callbacks
--- callback
-luatexbase.add_to_callback('process_input_buffer',
- function (buffer)
- return ltj.process_input_buffer(buffer)
- end,'ltj.process_input_buffer')
luatexbase.add_to_callback('pre_linebreak_filter',
function (head,groupcode)
- return ltj.main_process(head)
- end,'ltj.pre_linebreak_filter')
+ return main_process(head, true, tex.textdir)
+ end,'ltj.pre_linebreak_filter',
+ luatexbase.priority_in_callback('pre_linebreak_filter',
+ 'luaotfload.pre_linebreak_filter') + 1)
luatexbase.add_to_callback('hpack_filter',
- function (head,groupcode,size,packtype)
- return ltj.main_process(ltj.replace_ja_font(head))
- end,'ltj.hpack_filter')
-luatexbase.add_to_callback('hyphenate',
- function (head,tail)
- return ltj.suppress_hyphenate_ja(head)
- end,'ltj.hyphenate')
+ function (head,groupcode,size,packtype, dir)
+ return main_process(head, false, dir)
+ end,'ltj.hpack_filter',
+ luatexbase.priority_in_callback('hpack_filter',
+ 'luaotfload.hpack_filter') + 1)
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