From e0c6872cf40896c7be36b11dcc744620f10adf1d Mon Sep 17 00:00:00 2001 From: Norbert Preining Date: Mon, 2 Sep 2019 13:46:59 +0900 Subject: Initial commit --- macros/luatex/generic/luatexja/src/ltj-compat.lua | 140 ++++++++++++++++++++++ 1 file changed, 140 insertions(+) create mode 100644 macros/luatex/generic/luatexja/src/ltj-compat.lua (limited to 'macros/luatex/generic/luatexja/src/ltj-compat.lua') diff --git a/macros/luatex/generic/luatexja/src/ltj-compat.lua b/macros/luatex/generic/luatexja/src/ltj-compat.lua new file mode 100644 index 0000000000..bd798545f3 --- /dev/null +++ b/macros/luatex/generic/luatexja/src/ltj-compat.lua @@ -0,0 +1,140 @@ +-- +-- luatexja/ltj-compat.lua +-- + +luatexja.load_module('base'); local ltjb = luatexja.base +luatexja.load_module('stack'); local ltjs = luatexja.stack +local stack_table_index = luatexja.stack_table_index + +-- load jisx0208 table +local cache_ver = 2 + +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=utf.char +local function to_kansuji(num) + if not num then num=0; return + elseif num<0 then + num = -num; tex.write('-') + end + local s = "" + while num~=0 do + s = utfchar( + ltjs.get_stack_table(luatexja.stack_table_index.KSJ + num%10, + '', tex.getcount('ltj@@stack'))) .. s + num=math.floor(num/10) + end + tex.write(s) +end + +-- \ucs: 単なる identity +local function from_ucs(i) + if type(i)~='number' then + ltjb.package_error('luatexja', + "invalid character code (".. tostring(i) .. ")", + "I'm going to use 0 instead of that illegal character code.") + i=0 + end + tex.write(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 + ltjb.package_error('luatexja', + "invalid character code (".. tostring(i) .. ")", + "I'm going to use 0 instead of that illegal character code.") + i=0 + end + tex.write(tostring(jisx0208.table_jisx0208_uptex[i] or 0)) +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 + ltjb.package_error('luatexja', + "invalid character code (".. tostring(i) .. ")", + "I'm going to use 0 instead of that illegal character code.") + 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') or i>=0x10000 or i<0 then + ltjb.package_error('luatexja', + "invalid character code (".. tostring(i) .. ")", + "I'm going to use 0 instead of that illegal character code.") + 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 + ltjb.package_error('luatexja', + "invalid character code (".. tostring(i) .. ")", + "I'm going to use 0 instead of that illegal character code.") + tex.write('0'); return + end + local c2 = math.floor(i/256) + local c1 = 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 ltjs.get_stack_table(stack_table_index.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 -- cgit v1.2.3