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Diffstat (limited to 'Master/texmf-dist/tex/luatex/luatexja/ltj-compat.lua')
-rw-r--r-- | Master/texmf-dist/tex/luatex/luatexja/ltj-compat.lua | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/Master/texmf-dist/tex/luatex/luatexja/ltj-compat.lua b/Master/texmf-dist/tex/luatex/luatexja/ltj-compat.lua new file mode 100644 index 00000000000..c21e2616219 --- /dev/null +++ b/Master/texmf-dist/tex/luatex/luatexja/ltj-compat.lua @@ -0,0 +1,92 @@ +-- +-- luatexja/compat.lua +-- +luatexbase.provides_module({ + name = 'luatexja.compat', + date = '2011/06/03', + version = '0.1', + description = 'Partial implementation of primitives of pTeX', +}) +module('luatexja.compat', package.seeall) +local err, warn, info, log = luatexbase.errwarinf(_NAME) + +luatexja.load_module('base'); local ltjb = luatexja.base +luatexja.load_module('stack'); local ltjs = luatexja.stack + +-- \kuten, \jis, \euc, \sjis, \ucs, \kansuji +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 = utf.char( + ltjs.get_penalty_table('ksj', num%10, + '', tex.getcount('ltj@@stack'))) .. s + num=math.floor(num/10) + end + tex.write(s) +end + +-- \ucs: 単なる identity +function from_ucs(i) + 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 +function from_kuten(i) + if not i then i=0 end + tex.write(tostring(luatexja.jisx0208.table_jisx0208_uptex[i]) or '0') +end + +-- \euc: EUC-JP による符号位置 => Unicode 符号位置 +function from_euc(i) + if not i then 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 +function from_jis(i) + if (not i) or i>=0x10000 or i<0 then + i=0 + end + from_kuten(i-0x2020) +end + +-- \sjis: Shift_JIS による符号位置 => Unicode 符号位置 +function from_sjis(i) + if (not i) or i>=0x10000 or i<0 then + 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 - 0x7e + end + from_kuten(c2*256+c1) + end +end |