--
luatexbase.provides_module({
name = 'luatexja.stack',
- date = '2011/04/01',
- version = '0.1',
+ date = '2014/01/24',
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')
if j > tex.getcount('ltj@@group@level') then
i = i+1 -- new stack level
local gd = tex.globaldefs
- if gd>0 then tex.globaldefs = 0 end
+ if gd~=0 then tex.globaldefs = 0 end
-- 'tex.globaldefs = 0' is local even if \globaldefs > 0.
tex.setcount('ltj@@group@level', j)
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 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
-- end
-- end
+function set_stack_table(m,p)
+ local i = get_stack_level()
+ charprop_stack_table[i][m] = p
+ if luatexja.isglobal=='global' then
+ for j,v in pairs(charprop_stack_table) do
+ charprop_stack_table[j][m] = p
+ end
+ end
+end
+local set_stack_table = set_stack_table
-- EXT
-function set_stack_table(g,m,c,p,lb,ub)
- local i = get_stack_level()
+function set_stack_perchar(m,c,p,lb,ub)
if type(p)~='number' or p<lb or p>ub then
ltjb.package_error('luatexja',
"invalid code (".. tostring(p) .. ")",
tostring(ub) .. ".\n" ..
"I'm going to use 0 instead of that illegal code value.")
p=0
- elseif type(c)~='number' or c<-1 or c>0x10ffff then
- ltjb.package_error('luatexja',
- 'bad character code (' .. tostring(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
- elseif not charprop_stack_table[i][c] then
- charprop_stack_table[i][c] = {}
end
- charprop_stack_table[i][c][m] = p
- if g=='global' then
- for j,v in pairs(charprop_stack_table) do
- if not charprop_stack_table[j][c] then charprop_stack_table[j][c] = {} end
- charprop_stack_table[j][c][m] = p
- end
- end
+ set_stack_table(m+ltjb.in_unicode(c, true), p)
end
-- EXT
-function set_stack_font(g,m,c,p)
- local i = get_stack_level()
+function set_stack_font(m,c,p)
if type(c)~='number' or c<0 or c>255 then
ltjb.package_error('luatexja',
"invalid family number (".. tostring(c) .. ")",
"The family number should in the range 0 .. 255.\n" ..
"I'm going to use 0 instead of that illegal family number.")
c=0
- elseif not charprop_stack_table[i][c] then
- charprop_stack_table[i][c] = {}
end
- charprop_stack_table[i][c][m] = p
- if g=='global' then
- for j,v in pairs(charprop_stack_table) do
- if not charprop_stack_table[j][c] then charprop_stack_table[j][c] = {} end
- charprop_stack_table[j][c][m] = p
- end
- end
+ set_stack_table(m+c, p)
end
-- EXT: store \ltj@tempskipa
-function set_stack_skip(g,m,sp)
+function set_stack_skip(m,sp)
local i = get_stack_level()
if not sp then return end
if not charprop_stack_table[i][m] then
charprop_stack_table[i][m].shrink = sp.shrink
charprop_stack_table[i][m].stretch_order = sp.stretch_order
charprop_stack_table[i][m].shrink_order = sp.shrink_order
- if g=='global' then
+ if luatexja.isglobal=='global' then
for j,v in pairs(charprop_stack_table) do
if not charprop_stack_table[j][m] then charprop_stack_table[j][m] = {} end
charprop_stack_table[j][m].width = sp.width
end
-- These three functions are used in ltj-jfmglue.lua.
-local table_current_stack
function report_stack_level(bsl)
table_current_stack = charprop_stack_table[bsl]
end
-function fast_get_skip_table(m)
+function fast_get_stack_skip(m)
return table_current_stack[m]
or { width = 0, stretch = 0, shrink = 0, stretch_order = 0, shrink_order = 0 }
end
-function fast_get_penalty_table(m,c)
- local i = table_current_stack[c]
- return (i and i[m])
-end
-
-local empty_table = {}
-function fast_get_penalty_table_parent(c)
- return table_current_stack[c] or empty_table
-end
-- For other situations, use the following instead:
-function get_skip_table(m, idx)
+function get_stack_skip(m, idx)
return charprop_stack_table[idx][m]
or { width = 0, stretch = 0, shrink = 0, stretch_order = 0, shrink_order = 0 }
end
-function get_penalty_table(m,c,d, idx)
- local i = charprop_stack_table[idx][c]
- return (i and i[m]) or d
+function get_stack_table(mc, d, idx)
+ local i = charprop_stack_table[idx][mc]
+ return i or d
end
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