--
luatexbase.provides_module({
name = 'luatexja.stack',
- date = '2013/04/13',
+ date = '2017/05/05',
description = 'LuaTeX-ja stack system',
})
module('luatexja.stack', package.seeall)
luatexja.load_module('base'); local ltjb = luatexja.base
+--------------------------------------------------------------------------------
+-- stack table (obeys TeX's grouping)
+--------------------------------------------------------------------------------
local node_new = node.new
local id_whatsit = node.id('whatsit')
local sid_user = node.subtype('user_defined')
local STCK = luatexja.userid_table.STCK
-hmode = 0 -- dummy
+local fastcopy = table.fastcopy
+local setcount = tex.setcount
+local scan_int, scan_keyword = token.scan_int, token.scan_keyword
+hmode = 0 -- dummy
-charprop_stack_table={};
+charprop_stack_table={};
local charprop_stack_table = charprop_stack_table
charprop_stack_table[0]={}
local gd = tex.globaldefs
if gd~=0 then tex.globaldefs = 0 end
-- 'tex.globaldefs = 0' is local even if \globaldefs > 0.
- tex.setcount('ltj@@group@level', j)
+ 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] = table.fastcopy(charprop_stack_table[i-1])
- tex.setcount('ltj@@stack', i)
+ charprop_stack_table[i] = fastcopy(charprop_stack_table[i-1])
+ 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
+ if tex.nest[tex.nest.ptr].mode == -hmode then -- rest. hmode のみ
local g = node_new(id_whatsit, sid_user)
g.user_id=STCK; g.type=100; g.value=j; node.write(g)
end
return i
end
--- local function table_to_str(v)
--- local s = ''
--- for i, a in pairs(v) do
--- s = s .. i .. "=" .. tostring(a) .. ', '
--- end
--- return s
--- end
--- function print_stack_table(i)
--- print('\n>>> get_stack_level:')
--- for k, v in pairs(charprop_stack_table[i]) do
--- print(" " , k, type(k), table_to_str(v));
--- 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()
- if type(p)~='number' or p<lb or p>ub then
+function set_stack_perchar(m,lb,ub, getter)
+ local c = scan_int()
+ scan_keyword(',')
+ local p = tonumber((getter or scan_int)())
+ if p<lb or p>ub then
ltjb.package_error('luatexja',
"invalid code (".. tostring(p) .. ")",
"The code should in the range "..tostring(lb) .. '..' ..
"I'm going to use 0 instead of that illegal code value.")
p=0
end
- c = ltjb.in_unicode(c, true)
- charprop_stack_table[i][c+m] = p
- if g=='global' then
- for j,v in pairs(charprop_stack_table) do
- 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()
- if type(c)~='number' or c<0 or c>255 then
+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
end
- charprop_stack_table[i][c+m] = p
- if g=='global' then
- for j,v in pairs(charprop_stack_table) do
- 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)
+-- EXT: sp: glue_spec
+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] = {}
+ if not charprop_stack_table[i][m] then
+ charprop_stack_table[i][m] = {}
end
charprop_stack_table[i][m].width = sp.width
charprop_stack_table[i][m].stretch = sp.stretch
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
- for j,v in pairs(charprop_stack_table) do
+ 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
charprop_stack_table[j][m].stretch = sp.stretch
end
-- These three functions are used in ltj-jfmglue.lua.
+-- list_dir and orig_char_table are used in other lua files.
+orig_char_table = {}
+list_dir = nil -- dummy
+table_current_stack = nil -- dummy
function report_stack_level(bsl)
table_current_stack = charprop_stack_table[bsl]
+ return bsl
end
-function fast_get_skip_table(m)
- return table_current_stack[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
-- For other situations, use the following instead:
-function get_skip_table(m, idx)
- return charprop_stack_table[idx][m]
+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(mc, d, idx)
+function get_stack_table(mc, d, idx)
local i = charprop_stack_table[idx][mc]
return i or d
end
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