ltj-rmlgbm.lua: support 'vert' feature

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

diff --git a/src/ltj-rmlgbm.lua b/src/ltj-rmlgbm.lua
index c7f7bc7..2430ef3 100644 (file)
--- a/src/ltj-rmlgbm.lua
+++ b/src/ltj-rmlgbm.lua
@@ -5,7 +5,8 @@ luatexja.load_module('base');      local ltjb = luatexja.base
 
 local cidfont_data = {}
 local cache_chars = {}
-local cache_ver = '3'
+local cache_ver = 5
+local identifiers = fonts.hashes.identifiers
 
 local cid_reg, cid_order, cid_supp, cid_name
 local cid_replace = {
@@ -138,29 +139,28 @@ do
          ttu[cid_order .. '.' .. i] = cidmo[i]
       end
 
-      -- 縦書用字形
-      tt, cidm = {}, {}
-      for i = 0,kx[2] do cidm[i] = -1 end
-      open_cmap_file(kx[1] .. "-V", increment, tonumber, entry)
-      local ttv = {}
-      for i,v in pairs(tt) do ttv[i] =  cidmo[v.index] end
-
       -- shared
       k.shared = {
          otfdata = {
             cidinfo= k.cidinfo, verbose = false,
             shared = { featuredata = {}, },
-           luatex = { features = {},
-                      defaultwidth=1000,
-                    },
          },
          dynamics = {}, features = {}, processes = {},
-        ltj_vert_table = ttv
-      }
+         --rawdata = { descriptions = {} },
+     }
       k.resources = { unicodes = ttu, }
       k.descriptions = {}
       cache_chars[cid_name]  = { [655360] = k.characters }
 
+      -- 縦書用字形
+      tt, cidm = {}, {}
+      local ttv = {}; k.shared.ltj_vert_table = ttv
+      for i = 0,kx[2] do cidm[i] = -1 end
+      open_cmap_file(kx[1] .. "-V", increment, tonumber, entry)
+      for i,v in pairs(tt) do
+         ttv[i] =  cidmo[v.index]
+      end
+
       -- tounicode エントリ
       local cidp = {nil, nil}; tt, ttu, cidm = {}, {}, {}
       open_cmap_file(cid_name .. "-UCS2",
@@ -193,6 +193,26 @@ do
 end
 
 --
+local cidf_vert_processor
+do
+   local traverse_id = node.traverse_id
+   local id_glyph = node.id('glyph')
+   cidf_vert_processor = {
+      function (head, fnum)
+         local fontdata = identifiers[fnum]
+         if fontdata.is_ltj_vert then
+            local vt = fontdata.shared.ltj_vert_table
+            for n in traverse_id(id_glyph, head) do
+               if n.font==fnum then
+                  n.char = vt[n.char] or n.char
+               end
+            end
+            return head, false
+         end
+      end
+   }
+end
+
 local function cid_cache_outdated(t) return t.version~=cache_ver end
 local function read_cid_font()
    local dat = ltjb.load_cache("ltj-cid-auto-" .. string.lower(cid_name),
@@ -205,6 +225,7 @@ local function read_cid_font()
       make_cid_font()
    end
    if cidfont_data[cid_name] then
+      cidfont_data[cid_name].shared.processes = cidf_vert_processor
       for i,v in pairs(cidfont_data[cid_name].characters) do
          if not v.width then v.width = 655360 end
          v.height, v.depth = 576716.8, 78643.2 -- optimized for jfm-ujis.lua
@@ -223,7 +244,7 @@ local function mk_rml(name, size, id)
    local fontdata = {}
    local cachedata = {}
    local s = cidfont_data[cid_name]
-   luatexja.rmlgbm.vert_addfunc(id, s.shared.ltj_vert_table)
+   luatexja.rmlgbm.vert_addfunc(id)
    for k, v in pairs(s) do
       fontdata[k] = v
       cachedata[k] = v
@@ -287,10 +308,13 @@ local function mk_rml(name, size, id)
       e = e * 1000
       var, fontdata.extend  = var .. 'x' .. tostring(e), e
    end
+   if string.match(specification.detail, '(%+?vert)') then
+      cachedata.is_ltj_vert = true
+   end
    fontdata.name = specification.name .. size .. var; cachedata.name = fontdata.name
    fontdata.fullname = specification.name .. var; cachedata.fullname = fontdata.fullname
    fontdata.psname = specification.name; cachedata.psname = fontdata.psname
-   fonts.hashes.identifiers[id] = cachedata
+   identifiers[id] = cachedata
 
    return fontdata
 end
@@ -335,7 +359,11 @@ local function font_callback(name, size, id, fallback)
       end
       return mk_rml(basename, size, id)
    else
-      return fallback(name, size, id)
+      local tfmdata=fallback(name, size, id)
+      if type (tfmdata) == "table" and tfmdata.shared then
+        luatexbase.call_callback("luaotfload.patch_font", tfmdata, name)
+      end
+      return tfmdata
    end
 end
 
@@ -347,5 +375,3 @@ luatexja.rmlgbm = {
 
 cid_reg, cid_order, cid_name, cid_supp = 'Adobe', 'Japan1', 'Adobe-Japan1'
 read_cid_font()
-
-