Psych is unable to parse an array of symbols

[ruby]

Psych is unable to parse an array of symbols

[amikula]

I would also like to know why this is considered invalid. I've traced the BNF for flow sequences in YAML 1.1 (http://www.yaml.org/spec/1.1/#id931285), which is the version that libyaml (http://pyyaml.org/wiki/LibYAML) implements. Flow sequences of words starting with colons appear to be perfectly valid in YAML 1.1. If this is invalid because it is actually a libyaml bug, then just say so and I'll be happy to file a bug report against libyaml.

schmidt: In case you haven't found this yet, the workaround in psych is to define the array of symbols in the long form:

symbol-array:

• :foo
• :bar
• :baz

[kronos]

Invalid.

[schmidt]

Why is this considered invalid? I'm running into the very same issue atm. How did you solve it?

[schmidt]

Thanks @amikula,

I forgot to come back, to say how I fixed it. I also just changed the locale files to use the multi-line version, which was some work. While doing so, I ran into some other ambiguities between psych and syck - chiliproject/chiliproject@1eee731...90987ca for details. But I was not able to see, who's fault they are, so I did not file bug reports.

[mildred]

@kronos Could you please clarify why this is an invalid bug. I ran across this issue and find it pretty annoying.
Thanks

[gabrielengel]

Hi, same issue here. Still it works on syck

[kronos]

I really don't remember why I marked the issue as invalid. May be we should ask @tenderlove.

[gabrielengel]

Just in case, wrote a quick regexp that may help anyone going through this https://gist.github.com/4078769

[tenderlove]

It's a known issue in libyaml. It's technically valid, but if it's supported, causes an ambiguity in the grammar. Here is a relevant ruby-core thread, along with the libyaml thread, and the wiki page with possible solutions.