From: Dan Kirkwood <dangogh@...>
Date: 2007-01-09T06:37:20+09:00
Subject: incorrect yaml?

Here's a simple yaml output from the Ruby to_yaml method:
  sample = { 'foo' => %w[ a b c ] }
  puts sample.to_yaml
  =>
  ---
  foo:
  -a
  -b
  -c

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.

I've dug thru the yaml.org spec,  but can't find any reference that 
tells me which is correct..

Using Redhat Enterprise Linux 4, ruby 1.8.5, perl 5.8.8 w/YAML.pm 0.62

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