lib/writeexcel/helper.rb in writeexcel-0.4.0 vs lib/writeexcel/helper.rb in writeexcel-0.4.1

@@ -19,5 +19,24 @@
       end
     end
     str
   end
   private :convert_to_ascii_if_ascii
+
+
+  def utf8_to_16be(utf8)
+    utf16be = NKF.nkf('-w16B0 -m0 -W', utf8)
+    utf16be.force_encoding('UTF-16BE')
+  end
+  private :utf8_to_16be
+
+  def utf8_to_16le(utf8)
+    utf16le = NKF.nkf('-w16L0 -m0 -W', utf8)
+    utf16le.force_encoding('UTF-16LE')
+  end
+  private :utf8_to_16le
+
+  def ascii_to_16be(ascii)
+    ascii.unpack("C*").pack("n*")
+    ascii.force_encoding('UTF-16BE')
+  end
+  private :ascii_to_16be