EmitterConfig: add support for single quote/double quote

Hi,

While reading EmitterConfig's docs of version 0.8.0, I think it doesn't support single quote/double quote yet. May I ask if you could add that support?

Or if you agree, I will try to find some time to code and send a PR for you to review.

Thank you,

[netvl]

Hi,

If you want, you can send a PR. A new implementation of the parser/emitter infrastructure is in the works, which would cover this use case as well (but unfortunately I can't give any estimates about when it is done).

@netvl

Thanks for your reply. I was the one who filed this issue. Sometimes I deleted my GitHub account and registered another one (it's personal reason, I'm very sorry for that).

I think this is a simple feature, so if you're already implementing it, it's better to let you do so. Please close the issue as you see fit.

And thank you very much for your hard work.

[mickvangelderen]

I'm also looking for this functionality.