documentation and \UTF

[luatex-ja/luatexja.git] / src / ltj-jfont.lua

diff --git a/src/ltj-jfont.lua b/src/ltj-jfont.lua
index e242b1f..dcb5d6f 100644 (file)
--- a/src/ltj-jfont.lua
+++ b/src/ltj-jfont.lua
@@ -3,7 +3,7 @@
 --
 luatexbase.provides_module({
   name = 'luatexja.jfont',
-  date = '2019/04/30',
+  date = '2019/05/01',
   description = 'Loader for Japanese fonts',
 })
 
@@ -43,7 +43,7 @@ luatexbase.create_callback("luatexja.load_jfm", "data", function (ft, jn) return
 
 local jfm_file_name, jfm_var, jfm_ksp
 local defjfm_res
-local jfm_dir, is_def_jfont, is_vert_enabled, auto_enable_vrt2
+local jfm_dir, is_def_jfont, vert_activated, auto_enable_vrt2
 
 local function norm_val(a)
    if (not a) or (a==0.) then
@@ -297,10 +297,10 @@ do
    end
 
 -- EXT
-   local utf8 = unicode.utf8
+   local utfbyte = utf.byte
    function luatexja.jfont.jfontdefX(g, dir, csname)
       jfm_dir, is_def_jfont = dir, true
-      cstemp = csname:sub( (utf8.byte(csname,1,1) == tex.escapechar) and 2 or 1, -1)
+      cstemp = csname:sub( (utfbyte(csname,1,1) == tex.escapechar) and 2 or 1, -1)
       cstemp = cstemp:sub(1, ((cstemp:sub(-1,-1)==' ') and (cstemp:len()>=2)) and -2 or -1)
       global_flag = g and '\\global' or ''
       tex.sprint(cat_lp, '\\expandafter\\font\\csname ',
@@ -338,7 +338,7 @@ do
                         chars = sz.chars, char_type = sz.char_type,
                         kanjiskip = sz.kanjiskip, xkanjiskip = sz.xkanjiskip,
                         chars_cbcache = {},
-                        vert_activated = is_vert_enabled,
+                        vert_activated = vert_activated,
       }
       local t = identifiers[fn]
       if auto_enable_vrt2 then
@@ -434,11 +434,11 @@ do
          jfm_ksp = not (x=='-')
       end
       if jfm_dir == 'tate' then
-         is_vert_enabled = (not name:match('[:;]%-vert')) and (not  name:match('[:;]%-vrt2'))
+         vert_activated = (not name:match('[:;]%-vert')) and (not  name:match('[:;]%-vrt2'))
          auto_enable_vrt2 
            = (not name:match('[:;][+%-]?vert')) and (not name:match('[:;][+%-]?vrt2'))
       else
-         is_vert_enabled, auto_enable_vrt2 = nil, nil
+         vert_activated, auto_enable_vrt2 = nil, nil
       end
       return name
    end
@@ -1092,23 +1092,33 @@ do
      [0x300A]=0xFE3D, [0x300B]=0xFE3E, [0x3008]=0xFE3F, [0x3009]=0xFE40,
      [0x300C]=0xFE41, [0x300D]=0xFE42, [0x300E]=0xFE43, [0x300F]=0xFE44,
      [0xFF3B]=0xFE47, [0xFF3D]=0xFE48, 
-     [-0xFF0C]=0xFE11, [-0xFF0E]=0xFE12,
-     [-0x201C]=0x301D, [-0x201D]=0x301F,
   }
-  local abs = math.abs
+  local vert_jpotf_table = {}
   local function add_vform(coverage, vform, ft, add_vert, jpotf_vert)
-     if type(coverage)~='table' then return end
-     for i,v in pairs(vert_form_table) do
-         if i>=0 and not coverage[i] and ft.characters[v] then
-            vform[i] = v
-         end
-         if jpotf_vert and i<0 and ft.characters[v]then
-             vform[abs(i)] = coverage[v] or v
-         end
-     end
-     if add_vert then -- vert feature が有効にならない場合
-        for i,v in pairs(coverage) do vform[i] = vform[i] or v end
-     end
+    if type(coverage)~='table' then return end
+    for i,v in pairs(vert_form_table) do
+       if not coverage[i] and ft.characters[v] then vform[i] = v end
+    end
+    if jpotf_vert then
+      for i,v in pairs(vert_jpotf_table) do
+       if ft.characters[v] then  vform[i] = coverage[v] or vform[v] or v end
+      end
+    end
+    if add_vert then -- vert feature が有効にならない場合
+      for i,v in pairs(coverage) do vform[i] = vform[i] or v end
+    end
+  end
+
+  local utfbyte, utfsub = utf.byte, utf.sub
+  luatexja.jfont.register_vert_replace = function(t)
+    for i,v in pairs(t) do
+      local ic = (type(i)=='number') and i or 
+        ((type(i)=='string') and utfbyte(utfsub(i,1,1)) or nil)
+      if ic then
+        vert_jpotf_table[ic] = (type(v)=='number') and v or 
+          ((type(v)=='string') and utfbyte(utfsub(v,1,1)) or nil)
+      end
+    end  
   end
 
 luatexbase.add_to_callback(