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diff --git a/ruby/utf8proc.rb b/ruby/utf8proc.rb
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+#  Copyright (c) 2009 Public Software Group e. V., Berlin, Germany
+#
+#  Permission is hereby granted, free of charge, to any person obtaining a
+#  copy of this software and associated documentation files (the "Software"),
+#  to deal in the Software without restriction, including without limitation
+#  the rights to use, copy, modify, merge, publish, distribute, sublicense,
+#  and/or sell copies of the Software, and to permit persons to whom the
+#  Software is furnished to do so, subject to the following conditions:
+#
+#  The above copyright notice and this permission notice shall be included in
+#  all copies or substantial portions of the Software.
+#
+#  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+#  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+#  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+#  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+#  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+#  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+#  DEALINGS IN THE SOFTWARE.
+
+
+#
+#  File name:    ruby/utf8proc.rb
+#
+#  Description:
+#  Part of the ruby wrapper for libutf8proc, which is written in ruby.
+#
+
+
+require 'utf8proc_native'
+
+
+module Utf8Proc
+
+  SpecialChars = {
+    :HT => "\x09",
+    :LF => "\x0A",
+    :VT => "\x0B",
+    :FF => "\x0C",
+    :CR => "\x0D",
+    :FS => "\x1C",
+    :GS => "\x1D",
+    :RS => "\x1E",
+    :US => "\x1F",
+    :LS => "\xE2\x80\xA8",
+    :PS => "\xE2\x80\xA9",
+  }
+
+  module StringExtensions
+    def utf8map(*option_array)
+      options = 0
+      option_array.each do |option|
+        flag = Utf8Proc::Options[option]
+        raise ArgumentError, "Unknown argument given to String#utf8map." unless
+          flag
+        options |= flag
+      end
+      return Utf8Proc::utf8map(self, options)
+    end
+    def utf8map!(*option_array)
+      self.replace(self.utf8map(*option_array))
+    end
+    def utf8nfd;   utf8map( :stable, :decompose); end
+    def utf8nfd!;  utf8map!(:stable, :decompose); end
+    def utf8nfc;   utf8map( :stable, :compose); end
+    def utf8nfc!;  utf8map!(:stable, :compose); end
+    def utf8nfkd;  utf8map( :stable, :decompose, :compat); end
+    def utf8nfkd!; utf8map!(:stable, :decompose, :compat); end
+    def utf8nfkc;  utf8map( :stable, :compose, :compat); end
+    def utf8nfkc!; utf8map!(:stable, :compose, :compat); end
+    def utf8chars
+      result = self.utf8map(:charbound).split("\377")
+      result.shift if result.first == ""
+      result
+    end
+    def char_ary
+      # depecated, use String#utf8chars instead
+      utf8chars
+    end
+  end
+
+  module IntegerExtensions
+    def utf8
+      return Utf8Proc::utf8char(self)
+    end
+  end
+
+end
+
+
+class String
+  include(Utf8Proc::StringExtensions)
+end
+
+class Integer
+  include(Utf8Proc::IntegerExtensions)
+end
+