René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Automatic UTF-8 string encoding in Ruby 1.9 can cause unexpected results","articleBody":"If encoding is available, unpacked strings are always encoded using UTF-8.  This can cause problems if the packed string data was meant to use a different encoding such as ASCII-8BIT.  For example,\n\n``` ruby\nsha    = '0123456789aabbcdfeff01234567890123456789'\n\npacked = [sha].pack('H*')\n=\u003e \"\\x01#Eg\\x89\\xAA\\xBB\\xCD\\xFE\\xFF\\x01#Eg\\x89\\x01#Eg\\x89\"\n\npacked.encoding\n=\u003e #\u003cEncoding:ASCII-8BIT\u003e\n\nhash   = {packed =\u003e 1}\n=\u003e {\"\\x01#Eg\\x89\\xAA\\xBB\\xCD\\xFE\\xFF\\x01#Eg\\x89\\x01#Eg\\x89\"=\u003e1}\n\nrehash = MessagePack.unpack(hash.to_msgpack)\n=\u003e {\"\\u0001#Eg\\x89\\xAA\\xBB\\xCD\\xFE\\xFF\\u0001#Eg\\x89\\u0001#Eg\\x89\"=\u003e1}\n\nhash.has_key? packed\n=\u003e true\n\nrehash.has_key? packed\n=\u003e false\n\nirb(main):085:0\u003e rehash.keys.map{|k| k.encode('BINARY')}\nEncoding::InvalidByteSequenceError: \"\\x89\" on UTF-8\n    from (irb):85:in `encode'\n    from (irb):85:in `block in irb_binding'\n    from (irb):85:in `map'\n    from (irb):85\n    from /opt/boxen/rbenv/versions/1.9.3/bin/irb:12:in `\u003cmain\u003e'\n```\n","author":{"url":"https://github.com/nickh","@type":"Person","name":"nickh"},"datePublished":"2013-02-27T01:29:50.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/7/msgpack-ruby/issues/7"}