`True` and `False` boolean literals seem to be parsed as strings

[reivilibre]

yaml-rust/src/yaml.rs

Lines 307 to 308 in da52a68

	"true" => Yaml::Boolean(true),
	"false" => Yaml::Boolean(false),

I am actually really struggling to understand the YAML 1.2 spec here, but I think it's saying that a parser can be in one of two modes: JSON schema tag resolution, or core schema tag resolution (with core seemingly being recommended as a default).
https://yaml.org/spec/1.2.2/#1022-tag-resolution

From my reading:

• In the JSON schema tag resolution, True indeed should be interpreted as "True"; but
• in the core schema tag resolution, True should be interpreted as true.

In any case, my colleagues used to YAML 1.1 were taken by surprise when True wasn't working for them. I am not sure what the right answer is here, but I suspect these boolean literals should still be treated as valid booleans.

[hoodie]

AFAIK the yaml 1.2 spec is smaller and more strict than 1.1. That's why a number of different representations for true and false are now treated as strings (including yes and no). The reference you provide is really curious, I haven't found any reference about how to communicate to the parser which schema to follow. How would I mark a document/value to be understood as JSON schema tag resolution or core schema tag resolution?

[davvid]

This repo is basically unmaintained. I would recommend moving this discussion to a new issue in https://github.com/Ethiraric/yaml-rust2 where it'll have a better chance of resulting in improvements.

[haydonryan-pivotal]

I came here from https://yaml.org/, which is still pointing to this repo, if there's a better one - might be good to update them.

[davvid]

I opened a PR to update the links on yaml.org ~ yaml/www.yaml.org#162