Escape sequence inconsistencies, extension settings?

[06000208]

The dotenv library on npm, a popular node.js implementation, doesn't require escaping quotes inside quotes or support the use of \t, per motdotla/dotenv#711. It does support \n, though.

This results in inconsistency between the extension and resulting parsed strings, with newlines being correct, while tabs, escaped backslashes, and quotes inside quotes aren't:

On the issue linked above, they describe 3 other libs behavior, and they're also all inconsistent in some way with this extension.

So would extension settings to customize which escape sequences are counted be possible, or adequately deal with this? Is there a specification somewhere that these libs should be following?

(I do believe the extension's default styling is correct, for what it's worth, and that dotenv should support these things. I'm also aware that this extension is for a different lib.)