lib/spreadsheet/encodings.rb in spreadsheet-0.6.5.8 vs lib/spreadsheet/encodings.rb in spreadsheet-0.6.5.9

@@ -1,35 +1,46 @@
+#!/usr/bin/env ruby
+# encoding: utf-8
+# Spreadsheet::Encoding -- spreadheet -- 07.09.2011 -- [e-mail]
+# Spreadsheet::Encoding -- spreadheet -- 03.07.2009 -- [e-mail]
+
 module Spreadsheet
   ##
   # Methods for Encoding-conversions. You should not need to use any of these.
   module Encodings
     if RUBY_VERSION >= '1.9'
       def client string, internal='UTF-16LE'
+        string = string.dup
         string.force_encoding internal
         string.encode Spreadsheet.client_encoding
       end
       def internal string, client=Spreadsheet.client_encoding
+        string = string.dup
         string.force_encoding client
         string.encode('UTF-16LE').force_encoding('ASCII-8BIT')
       end
       def utf8 string, client=Spreadsheet.client_encoding
+        string = string.dup
         string.force_encoding client
         string.encode('UTF-8')
       end
     else
       require 'iconv'
       @@iconvs = {}
       def client string, internal='UTF-16LE'
+        string = string.dup
         key = [Spreadsheet.client_encoding, internal]
         iconv = @@iconvs[key] ||= Iconv.new(Spreadsheet.client_encoding, internal)
         iconv.iconv string
       end
       def internal string, client=Spreadsheet.client_encoding
+        string = string.dup
         key = ['UTF-16LE', client]
         iconv = @@iconvs[key] ||= Iconv.new('UTF-16LE', client)
         iconv.iconv string
       end
       def utf8 string, client=Spreadsheet.client_encoding
+        string = string.dup
         key = ['UTF-8', client]
         iconv = @@iconvs[key] ||= Iconv.new('UTF-8', client)
         iconv.iconv string
       end
     end