-- -- ltj-compat.lua -- luatexja.load_module 'base'; local ltjb = luatexja.base luatexja.load_module 'stack'; local ltjs = luatexja.stack -- load jisx0208 table local cache_ver = 3 local cache_outdate_fn = function (t) return t.version~=cache_ver end local jisx0208 = ltjb.load_cache('ltj-jisx0208',cache_outdate_fn) if not jisx0208 then -- make cache jisx0208 = require 'ltj-jisx0208.lua' ltjb.save_cache_luc('ltj-jisx0208', jisx0208) end -- \kuten, \jis, \euc, \sjis, \ucs, \kansuji local utfchar, floor = utf.char, math.floor local texwrite, getcount = tex.write, tex.getcount local cnt_stack = luatexbase.registernumber 'ltj@@stack' local KSJ = luatexja.stack_table_index.KSJ local get_stack_table = ltjs.get_stack_table local function to_kansuji(num) if not num then num=0; return elseif num<0 then num = -num; texwrite '-' end local s = "" repeat s = utfchar(get_stack_table(KSJ + num%10, '', getcount(cnt_stack))) .. s num=num//10 until num==0 texwrite(s) end local function error_invalid_charcode(i) ltjb.package_error('luatexja', "invalid character code (".. tostring(i) .. ")", "I'm going to use 0 instead of that illegal character code.") end -- \ucs: 単なる identity local function from_ucs(i) if type(i)~='number' then error_invalid_charcode(i); i=0 end texwrite(i) end -- \kuten: 面区点 (それぞれで16進2桁を使用)=> Unicode 符号位置 local function from_kuten(i) if type(i)~='number' then error_invalid_charcode(i); i=0 end if (i%256==0)or(i%256>94) then texwrite '0' else texwrite(tostring(jisx0208.table_jisx0208_uptex[(i//256)*94+(i%256)-94] or 0)) end end -- \euc: EUC-JP による符号位置 => Unicode 符号位置 local function from_euc(i) if type(i)~='number' then error_invalid_charcode(i); i=0 elseif i>=0x10000 or i<0xa0a0 then i=0 end from_kuten(i-0xa0a0) end -- \jis: ISO-2022-JP による符号位置 => Unicode 符号位置 local function from_jis(i) if type(i)~='number' then error_invalid_charcode(i); i=0 end from_kuten(i-0x2020) end -- \sjis: Shift_JIS による符号位置 => Unicode 符号位置 local function from_sjis(i) if (type(i)~='number') or i>=0x10000 or i<0 then error_invalid_charcode(i); texwrite '0'; return end local c2, c1 = i//256, i%256 local shift_jisx0213_s1a3_table = { { [false]= 1, [true]= 8}, { [false]= 3, [true]= 4}, { [false]= 5, [true]=12}, { [false]=13, [true]=14}, { [false]=15 } } if c2 >= 0x81 then if c2 >= 0xF0 then -- this if block won't be true if (c2 <= 0xF3 or (c2 == 0xF4 and c1 < 0x9F)) then c2 = 0x100 + shift_jisx0213_s1a3_table[c2 - 0xF0 + 1][(0x9E < c1)]; else -- 78<=k<=94 c2 = c2 * 2 - 413 + 0x100; if 0x9E < c1 then c2=c2+1 end end else if c2<=0x9f then i=0x101 else i=0x181 end c2 = c2 + c2 - i; if 0x9E < c1 then c2=c2+1 end end if c1 < 0x9F then if c1>0x7f then i=0x40 else i=0x3f end; c1 = c1 - i else c1 = c1 - 0x9e end from_kuten(c2*256+c1) end end luatexja.binary_pars.kansujichar = function(c, t) if type(c)~='number' or c<0 or c>9 then ltjb.package_error('luatexja', 'Invalid KANSUJI number (' .. tostring(c) .. ')', 'A KANSUJI number should be in the range 0..9.\n'.. 'So I changed this one to zero.') c=0 end return get_stack_table(KSJ + c, 0, t) end local t = { from_euc = from_euc, from_kuten = from_kuten, from_jis = from_jis, from_sjis = from_sjis, from_ucs = from_ucs, to_kansuji = to_kansuji, } luatexja.compat = t