From: Daniel Sheppard <daniels@...>
Date: 2010-08-16T14:14:09+09:00
Subject: YAML Bug - can't round-trip a hash value with leading newlines.

YAML can't round-trip the hash: {"default"=>"\r\n  Monkey \r\nX"}.

Shouldn't yaml use the escaped string format for any string that starts with whitespace, ie,

yaml = "--- \ndefault: \"\\r\\n  Monkey \\r\\nX\""
p YAML.load(yaml)
=> {"default"=>"\r\n  Monkey \r\nX"}

Below is a demonstration of this:

ruby <<-EOF
hash = {"default"=>"\r\n  Monkey \r\nX"}
yaml = YAML.dump(hash)
p yaml
hash2 = YAML.load(yaml)
EOF
"--- \ndefault: |-\n  \r\n    Monkey\r\n  \r\n  <h2>Contact us</h2>\n"
/usr/lib/ruby/1.8/yaml.rb:133:in `load': syntax error on line 4, col 2: `  X' (ArgumentError)
        from /usr/lib/ruby/1.8/yaml.rb:133:in `load'
        from -:4

ruby -v
ruby 1.8.7 (2010-06-23 patchlevel 299) [i686-linux]


Same bug exists in the jruby implementation as well.