From: Caleb Clausen <vikkous@...>
Date: 2010-08-23T05:47:20+09:00
Subject: Re: YAML Bug - can't round-trip a hash value with leading newlines.

On 8/15/10, Daniel Sheppard <daniels@pronto.com.au> wrote:
> 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.

This is bug #1311 in the ruby bug database:
  http://redmine.ruby-lang.org/issues/show/1311

The patch for it did finally get accepted in 1.9.2.