Alright, so I've been scratching my head about this along with some
folks over at #ruby-lang.

This may be a known problem, but after spending a few minutes
searching, I can't find any reference... so I'll document it here.

If you take some object and marshal it, then try and concat that
string, it produces some funny results.

Here is the test case that I've discovered. I'm thinking this is
happening because Marshal sends back some weird characters that are
screwing up the string methods. But, I would still classify that as a
bug, because when an object returns a string, that should always be a
fairly safe string to handle or it should be returning something else.
That would be an invalid or misformed string if you can't even use the
regular expressions on it.

Any help would be greatly appreciated.

 #I'm running ruby 1.8.3 on ubuntu
 #email hcatlin at gmail.com with any help


	class MyObject
		def initialize
			@name = "testvar"
			@array = Array.new
		end
  end

	test = MyObject.new
	dumpresult = Marshal.dump(test)
	puts 'Result: ' << dumpresult # Expected: "Result: MYOBJECTDUMP"
	puts 'Result=' << Marshal.dump(test) #Expected "Result=MYOBJECTDUMP"
	puts 'Result: ' + dumpresult # Expected: "Result: MYOBJECTDUMP"
	puts 'Result=' + Marshal.dump(test) #Expected "Result=MYOBJECTDUMP"
	puts "U=" << Marshal.dump(test) # Expected "U=MYOBJECTDUMP"


	#My result is this code below.

#MyObject:
#         @array[:
#@name"
#testvar
#MyObject:
#         @array[:
#@name"
#testvar
#MyObject:
#         @array[:
#@name"
#testvar
#MyObject:
#         @array[:
#@name"
#testvar
#MyObject:
#         @array[:
#@name"
#testvar