X-Git-Url: http://git.osdn.jp/view?a=blobdiff_plain;f=src%2Fltj-charrange.lua;h=d8825934b8789e53b4f952279ae8f8ca0e8616a5;hb=e5b953c545302a9d701e83d4b796243ed43cb887;hp=b142d35ffd2832468ef7605489724bfcb47a0ddb;hpb=3fd92022474e8b7cc280fc72a58aa9b5afb14b72;p=luatex-ja%2Fluatexja.git

diff --git a/src/ltj-charrange.lua b/src/ltj-charrange.lua
index b142d35..d882593 100644
--- a/src/ltj-charrange.lua
+++ b/src/ltj-charrange.lua
@@ -3,7 +3,7 @@
 --
 luatexbase.provides_module({
   name = 'luatexja.charrange',
-  date = '2014/05/08',
+  date = '2017/05/05',
   description = 'Handling the range of Japanese characters',
 })
 module('luatexja.charrange', package.seeall)
@@ -11,9 +11,8 @@ local err, warn, info, log = luatexbase.errwarinf(_NAME)
 
 luatexja.load_module('base');      local ltjb = luatexja.base
 
-local Dnode = node.direct or node
-local getchar = (Dnode ~= node) and Dnode.getchar or function(n) return n.char end
-local has_attr = Dnode.has_attribute
+local getchar = node.direct.getchar
+local has_attr = node.direct.has_attribute
 local has_attr_node = node.has_attribute
 local tex_getattr = tex.getattribute
 
@@ -24,14 +23,16 @@ local pow = math.pow
 local kcat_attr_table = {}
 local pow_table = {}
 local fn_table = {} -- used in is_ucs_in_japanese_char_direct
+local nfn_table = {} -- used in is_ucs_in_japanese_char_node
 for i = 0, 31*ATTR_RANGE-1 do
-   kcat_attr_table[i] = luatexbase.attributes['ltj@kcat'..floor(i/31)]
-   pow_table[i] =  pow(2, i%31)
-   fn_table[i] = function(p)
-      return floor(has_attr(p, kcat_attr_table[i])/pow_table[i])%2 ~= jcr_noncjk
-   end
+   local ka, pw = luatexbase.attributes['ltj@kcat'..floor(i/31)], 1/pow(2, i%31)
+   local jcr_noncjk = jcr_noncjk
+   kcat_attr_table[i], pow_table[i] = ka, pow(2, i%31)
+   fn_table[i] = function(p) return floor(has_attr(p, ka)*pw)%2 ~= jcr_noncjk end
+   nfn_table[i] = function(p) return floor(has_attr_node(p, ka)*pw)%2 ~= jcr_noncjk end
 end
-fn_table[-1]= function() return false end -- for char --U+007F
+fn_table[-1] = function() return false end -- for char --U+007F
+nfn_table[-1] = function() return false end -- for char --U+007F
 pow_table[31*ATTR_RANGE] = pow(2, 31)
 
 -- jcr_table_main[chr_code] = index
@@ -70,12 +71,8 @@ function add_char_range(b,e,ind) -- ind: external range number
 end
 
 function char_to_range(c) -- return the external range number
-   c=ltjb.in_unicode(c, false)
-   if c<0x80 then return -1
-   else
-      local r = jcr_table_main[c] or 217
-      return (r and r~=0) and r or 217
-   end
+   local r = jcr_table_main[ltjb.in_unicode(c, false)] or 217
+   return (r~=0) and r or 217
 end
 
 function get_range_setting(i) -- i: internal range number
@@ -84,14 +81,7 @@ end
 
 --  glyph_node p は和文文字か？
 function is_ucs_in_japanese_char_node(p)
-   local c = p.char
-   if c<0x80 then
-      return false
-   else
-      local i=jcr_table_main[c]
-      return (floor(
-		 has_attr_node(p, kcat_attr_table[i])/pow_table[i])%2 ~= jcr_noncjk)
-   end
+   return nfn_table[jcr_table_main[c or p.char]](p)
 end
 is_ucs_in_japanese_char = is_ucs_in_japanese_char_node
 -- only ltj-otf.lua uses this version
@@ -101,8 +91,7 @@ function is_ucs_in_japanese_char_direct(p ,c)
 end
 
 function is_japanese_char_curlist(c) -- assume that c>=0x80
-   local i=jcr_table_main[c]
-   return get_range_setting(i)~= jcr_noncjk
+   return get_range_setting(jcr_table_main[c])~= jcr_noncjk
 end
 
 -- EXT
@@ -118,7 +107,8 @@ function toggle_char_range(g, i) -- i: external range number
       if i>=7*ATTR_RANGE then i=0 end
       local attr = kcat_attr_table[i]
       local a = tex_getattr(attr)
-      tex.setattribute(g,attr,(floor(a/pow_table[i+1])*2+kc)*pow_table[i]+a%pow_table[i])
+      tex.setattribute(g, attr,
+		       (floor(a/pow_table[i+1])*2+kc)*pow_table[i]+a%pow_table[i])
    end
 end