Fix EOF seek and use a ghetto replacement for iconv to support older ruby versions

git-svn-id: file:///home/svn/framework3/trunk@6548 4d416f70-5f16-0410-b530-b9f4589650da

lib/ole/ranges_io.rb

@@ -95,7 +95,7 @@ class RangesIO
 			pos = @size + pos
 		else raise Errno::EINVAL
 		end
-		raise Errno::EINVAL unless (0...@size) === pos
+		raise Errno::EINVAL unless (0..@size) === pos
 		@pos = pos
 	end
 

lib/ole/types/base.rb

@@ -37,16 +37,16 @@ module Ole # :nodoc:
 
 		# for VT_LPWSTR
 		class Lpwstr < String
-			FROM_UTF16 = Iconv.new 'utf-8', 'utf-16le'
-			TO_UTF16   = Iconv.new 'utf-16le', 'utf-8'
+			#FROM_UTF16 = Iconv.new 'utf-8', 'utf-16le'
+			#TO_UTF16   = Iconv.new 'utf-16le', 'utf-8'
 			
 			def self.load str
-				new FROM_UTF16.iconv(str).chomp(0.chr)
+				new str.unpack('v*').pack('C*').chomp(0.chr) #FROM_UTF16.iconv(str).chomp(0.chr)
 			end
 			
 			def self.dump str
 				# need to append nulls?
-				data = TO_UTF16.iconv str
+				data = str.unpack('C*').pack('v*') #TO_UTF16.iconv str
 				# not sure if this is the recommended way to do it, but I want to treat
 				# the resulting utf16 data as regular bytes, not characters.
 				data.force_encoding Encoding::US_ASCII if data.respond_to? :encoding
@@ -244,8 +244,8 @@ module Ole # :nodoc:
 			Variant.load VT_FILETIME, str
 		end
 
-		FROM_UTF16 = Lpwstr::FROM_UTF16
-		TO_UTF16 = Lpwstr::TO_UTF16
+		#FROM_UTF16 = Lpwstr::FROM_UTF16
+		#TO_UTF16 = Lpwstr::TO_UTF16
 	end
 end