feat: support more actions in JSON schema conversion

[43081j]

Adds support for the following actions in JSON schema conversion:

• bic
• cuid2
• decimal
• digits
• empty

[fabian-hiller]

I first need to check that the .source of a regex assigned to the .pattern does not produce any unexpected behaviour or bugs. At the moment I suspect that this implementation is buggy because .source does not contain any regex flags and JSON schema does not support regex flags as far as I know. Flags like i for case insensitivity would therefore lead to bugs if missing.

[43081j]

no worries

you are right that the flags will be lost during conversion. not a lot to be done about that

we could throw/skip if any flags are set, or we could accept that the conversion is lossy

[fabian-hiller]

I am not sure how to proceed. So far the only important flag we are using is i for case insensitivity. We could remove this flag by rewriting these regular expressions so that they can simply be passed to .pattern. The drawback would be that they might become a bit more complex to maintain, and I expect a small increase in bundle size. Supporting only the regular expressions without the i flag could be another option, but this is a buggy option as we may introduce bugs when changing a regex.

[43081j]

I think we do both:

• throw when flags are set, or don't set the pattern
• try rewrite some of the simpler patterns to no longer need flags

if it turns out this isn't possible (especially since we use u a lot), maybe we just cant support these actions in conversion?

we don't support any of them yet, so throwing seems to make more sense than "best effort"

[fabian-hiller]

I think we can ignore the u flag for JSON Schema. This flag usually has no effect and we only use it because it seems to be a good practice for newer regular expressions.

I will look into rewriting some or all of the regular expressions. However, our v1 RC release has a higher priority. So it may be a while before we can move forward with this PR.

[andersk]

Perhaps we can translate the i flag using a modifier: /foo/i → /(?i:foo)/? This isn’t recommended but is probably better than ignoring it.