--
luatexbase.provides_module({
name = 'luatexja.stack',
- date = '2011/04/01',
- version = '0.1',
+ date = '2013/04/13',
description = 'LuaTeX-ja stack system',
})
module('luatexja.stack', package.seeall)
local node_new = node.new
local id_whatsit = node.id('whatsit')
local sid_user = node.subtype('user_defined')
-local hmode = 118 -- in luatexref-t.pdf, this must be 127
+local STCK = luatexja.userid_table.STCK
+hmode = 0 -- dummy
charprop_stack_table={};
local charprop_stack_table = charprop_stack_table
charprop_stack_table[0]={}
--- modified from table.fastcopy
-local next = next
-local function stack_table_copy_aux(old)
- local new = {}
- for i,v in next, old do
- new[i] = v
- end
- return new
-end
-local function stack_table_copy(old)
- if old then
- local new = {}
- for i,v in next, old do
- new[i] = stack_table_copy_aux(v)
- end
- return new
- else
- return {}
- end
-end
function get_stack_level()
local i = tex.getcount('ltj@@stack')
for k,v in pairs(charprop_stack_table) do -- clear the stack above i
if k>=i then charprop_stack_table[k]=nil end
end
- charprop_stack_table[i] = stack_table_copy(charprop_stack_table[i-1])
+ charprop_stack_table[i] = table.fastcopy(charprop_stack_table[i-1])
tex.setcount('ltj@@stack', i)
if gd>0 then tex.globaldefs = gd end
if tex.nest[tex.nest.ptr].mode == hmode or
tex.nest[tex.nest.ptr].mode == -hmode then
local g = node_new(id_whatsit, sid_user)
- g.user_id=30112; g.type=100; g.value=j; node.write(g)
+ g.user_id=STCK; g.type=100; g.value=j; node.write(g)
end
end
return i
-- EXT
function set_stack_table(g,m,c,p,lb,ub)
- print(g,m,c)
local i = get_stack_level()
if type(p)~='number' or p<lb or p>ub then
ltjb.package_error('luatexja',