From: Dan Kirkwood <dangogh@...>
Date: 2007-01-09T07:59:31+09:00
Subject: Re: incorrect yaml?

Ahh..  Thanks,  why..  That's exactly the information I was looking
for.  I'll try YAML::Syck. -dan

On 1/8/07, _why <why@ruby-lang.org> wrote:
> On Tue, Jan 09, 2007 at 06:37:20AM +0900, Dan Kirkwood wrote:
> > This does *not* load in to the yaml module in Perl (changed to a
> > one-liner for brevity):
> > ruby -ryaml -e 'puts ({%{foo} => %w[a b c]}).to_yaml' | perl -MYAML
> > -0777 -e 'YAML::Load(<>)'
> > YAML Error: Invalid element in map
> >    Code: YAML_LOAD_ERR_BAD_MAP_ELEMENT
> >    Line: 3
> >
> > Converting a similar structure using Perl produces yaml with the list
> > indented. My question is: which implementation is correct?   Should the
> > a,b,c list be indented?    The Ruby output is read properly by Ruby, but
> > not Perl.  The Perl output is read properly by both.
>
> Ruby's YAML support is further along than YAML.pm.  The YAML
> generated by Ruby's YAML module is correct for YAML 1.0.  YAML.pm
> just doesn't know how to parse it. See example 4.19 in the spec[1].
>
> You might try Audrey Tang's YAML::Syck[2], which uses the same backend
> as Ruby, thus is more likely to play nice with each other.
>
> Signed with a very pricey horsehair brush,
>
> _why
>
> [1] http://yaml.org/spec/history/2004-01-29/2004-01-29.html#id2564419
> [2] http://search.cpan.org/dist/YAML-Syck/