From: Ryan Davis <ryand-ruby@...>
Date: 2011-06-14T05:31:38+09:00
Subject: Re: Syck dies on multiline regex


On Jun 13, 2011, at 12:34 , Josh Cheek wrote:

> require 'yaml'
> [YAML, Marshal].each do |serializer|
>  [/ab/x, /a
>           b/x].each do |regex|
>    begin
>      serializer.load(serializer.dump regex)
>    rescue
>      p $!
>    end
>  end
> end
> 
> # >> #<Syck::TypeError: Invalid Regular expression: "/a\n           b/x">
> 
> 
> 
> This, in tandem with a few other things, cost me about four hours today (and
> made me reconsider my decision to become a nonsmoker -.-).
> 
> Is this a bug? If so, where should I report it?

It is probably a bug. It _probably_ won't ever get fixed as nobody really maintains syck anymore (tho if you come up with a patch, that'd certainly help). Try psych if it is possible:

6371 % ruby19 -rpsych -ryaml -e 'p YAML.dump /a
    b/x'
"--- !ruby/regexp \"/a\\n    b/x\"\n"