1 files changed, 133 insertions, 0 deletions
diff --git a/tool/enc-emoji4unicode.rb b/tool/enc-emoji4unicode.rb
new file mode 100644
index 0000000000..1e7d45901f
--- /dev/null
+++ b/tool/enc-emoji4unicode.rb
@@ -0,0 +1,133 @@
+#!/usr/bin/env ruby
+
+# example:
+# ./enc-emoji4unicode.rb emoji4unicode.xml > ../enc/trans/emoji-exchange-tbl.rb
+
+require 'rexml/document'
+require File.expand_path("../transcode-tblgen", __FILE__)
+
+class EmojiTable
+  VERBOSE_MODE = false
+
+  def initialize(xml_path)
+    @doc = REXML::Document.new File.open(xml_path)
+    @kddi_undoc = make_kddi_undoc_map()
+  end
+
+  def conversion(from_carrier, to_carrier, &block)
+    REXML::XPath.each(@doc.root, '//e') do |e|
+      from = e.attribute(from_carrier.downcase).to_s
+      to = e.attribute(to_carrier.downcase).to_s
+      text_fallback = e.attribute('text_fallback').to_s
+      name = e.attribute('name').to_s
+      if from =~ /^(?:\*|\+)(.+)$/ # proposed or unified
+        from = $1
+      end
+      if from.empty? || from !~ /^[0-9A-F]+$/
+        # do nothing
+      else
+        from_utf8 = [from.hex].pack("U").unpack("H*").first
+        if to =~ /^(?:&gt;|\*)?([0-9A-F\+]+)$/
+          str_to = $1
+          if str_to =~ /^\+/ # unicode "proposed" begins at "+"
+            proposal = true
+            str_to.sub!(/^\+/, '')
+          else
+            proposal = false
+          end
+          tos = str_to.split('+')
+          to_utf8 = tos.map(&:hex).pack("U*").unpack("H*").first
+          comment = "[%s] U+%X -> %s" % [name, from.hex, tos.map{|c| "U+%X"%c.hex}.join(' ')]
+          block.call(:from => from_utf8,
+                     :to => to_utf8,
+                     :comment => comment,
+                     :fallback => false,
+                     :proposal => proposal)
+        elsif to.empty?
+          if text_fallback.empty?
+            comment = "[%s] U+%X -> U+3013 (GETA)" % [name, from.hex]
+            block.call(:from => from_utf8,
+                       :to => "\u{3013}".unpack("H*").first,
+                       :comment => comment, # geta
+                       :fallback => true,
+                       :proposal => false)
+          else
+            to_utf8 = text_fallback.unpack("H*").first
+            comment = %([%s] U+%X -> "%s") % [name, from.hex, text_fallback]
+            block.call(:from => from_utf8,
+                       :to => to_utf8,
+                       :comment => comment,
+                       :fallback => true,
+                       :proposal => false)
+          end
+        else
+          raise "something wrong: %s -> %s" % [from, to]
+        end
+      end
+    end
+  end
+
+  def generate(io, from_carrier, to_carrier)
+    from_encoding = (from_carrier == "Unicode") ? "UTF-8" : "UTF8-"+from_carrier
+    to_encoding   = (to_carrier == "Unicode" )  ? "UTF-8" : "UTF8-"+to_carrier
+      io.puts "EMOJI_EXCHANGE_TBL['#{from_encoding}']['#{to_encoding}'] = ["
+      io.puts "  # for documented codepoints" if from_carrier == "KDDI"
+      self.conversion(from_carrier, to_carrier) do |params|
+        from, to = params[:from], %Q{"#{params[:to]}"}
+        to = ":undef" if params[:fallback] || params[:proposal]
+        io.puts %{  ["#{from}", #{to}], # #{params[:comment]}}
+      end
+      if from_carrier == "KDDI"
+        io.puts "  # for undocumented codepoints"
+        self.conversion(from_carrier, to_carrier) do |params|
+          from, to = params[:from], %Q{"#{params[:to]}"}
+          to = ":undef" if params[:fallback] || params[:proposal]
+          unicode = utf8_to_ucs(from)
+          undoc = ucs_to_utf8(@kddi_undoc[unicode])
+          io.puts %{  ["#{undoc}", #{to}], # #{params[:comment]}}
+        end
+      end
+      io.puts "]"
+      io.puts
+  end
+
+  private
+
+  def utf8_to_ucs(cp)
+    return [cp].pack("H*").unpack("U*").first
+  end
+
+  def ucs_to_utf8(cp)
+    return [cp].pack("U*").unpack("H*").first
+  end
+
+  def make_kddi_undoc_map()
+    pub_to_sjis = citrus_decode_mapsrc(
+      "mskanji", 2, "UCS/EMOJI_SHIFT_JIS-KDDI").sort_by{|u, s| s}
+    sjis_to_undoc = citrus_decode_mapsrc(
+      "mskanji", 2, "EMOJI_SHIFT_JIS-KDDI-UNDOC/UCS").sort_by{|s, u| s}
+    return pub_to_sjis.zip(sjis_to_undoc).inject({}) {|h, rec|
+      raise "no match sjis codepoint" if rec[0][1] != rec[1][0]
+      h[rec[0][0]] = rec[1][1]
+      next h
+    }
+  end
+end
+
+if ARGV.empty?
+  puts "usage: #$0 [emoji4unicode.xml]"
+  exit 1
+end
+$srcdir = File.expand_path("../../enc/trans", __FILE__)
+emoji_table = EmojiTable.new(ARGV[0])
+
+companies = %w(DoCoMo KDDI SoftBank Unicode)
+
+io = STDOUT
+io.puts "EMOJI_EXCHANGE_TBL = Hash.new{|h,k| h[k] = {}}"
+companies.each do |from_company|
+  companies.each do |to_company|
+    next if from_company == to_company
+    emoji_table.generate(io, from_company, to_company)
+  end
+end