--
luatexbase.provides_module({
name = 'luatexja.stack',
- date = '2014/05/08',
+ date = '2018/02/18',
description = 'LuaTeX-ja stack system',
})
-module('luatexja.stack', package.seeall)
-local err, warn, info, log = luatexbase.errwarinf(_NAME)
-
+luatexja.stack = {}
+local ltjs=luatexja.stack
luatexja.load_module('base'); local ltjb = luatexja.base
--------------------------------------------------------------------------------
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
+ltjs.hmode = 0 -- dummy
-charprop_stack_table={};
-local charprop_stack_table = charprop_stack_table
+local charprop_stack_table={};
+ltjs.charprop_stack_table = charprop_stack_table
charprop_stack_table[0]={}
-function get_stack_level()
+local function get_stack_level()
local i = tex.getcount('ltj@@stack')
local j = tex.currentgrouplevel
if j > tex.getcount('ltj@@group@level') then
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 then -- rest. hmode のみ
+ if tex.nest[tex.nest.ptr].mode == -ltjs.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
end
return i
end
+ltjs.get_stack_level = get_stack_level
-function set_stack_table(m, p)
+local function set_stack_table(m, p)
local i = get_stack_level()
charprop_stack_table[i][m] = p
if luatexja.isglobal=='global' then
end
end
end
-local set_stack_table = set_stack_table
+ltjs.set_stack_table = set_stack_table
-- EXT
-function set_stack_perchar(m,c,p,lb,ub)
- if type(p)~='number' or p<lb or p>ub then
+function ltjs.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) .. '..' ..
end
-- EXT
-function set_stack_font(m,c,p)
+function ltjs.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) .. ")",
end
-- EXT: sp: glue_spec
-function set_stack_skip(m,sp)
+function ltjs.set_stack_skip(m,sp)
local i = get_stack_level()
if not sp then return end
if not charprop_stack_table[i][m] then
end
-- These three functions are used in ltj-jfmglue.lua.
-function report_stack_level(bsl)
- table_current_stack = charprop_stack_table[bsl]
+-- list_dir and orig_char_table are used in other lua files.
+local orig_char_table = {}
+ltjs.orig_char_table = orig_char_table
+ltjs.list_dir = nil -- dummy
+ltjs.table_current_stack = nil -- dummy
+function ltjs.report_stack_level(bsl)
+ ltjs.table_current_stack = charprop_stack_table[bsl]
return bsl
end
-function fast_get_stack_skip(m)
- return table_current_stack[m]
+function ltjs.fast_get_stack_skip(m)
+ return ltjs.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_stack_skip(m, idx)
+function ltjs.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_stack_table(mc, d, idx)
+function ltjs.get_stack_table(mc, d, idx)
local i = charprop_stack_table[idx][mc]
return i or d
end
---------------------------------------------------------------------------------
--- nest table (obeys TeX's semantic nest)
---------------------------------------------------------------------------------
-nest_table = {}
-local nest_table = nest_table
-
-
-- EOF