TypedRegExp pattern isn't validated

[codpro2005]

the typedRegExp pattern argument, doesn't validate any incorrect patterns, i.e.:

const res = typedRegExp('('); // this works, but group isn't closed

[codpro2005]

While annoying, committing to full pattern validation would significantly increase the complexity of this project, i.e. using the 'u' flag would require to have index awareness of all unicode characters to ensure that character class ranges are validated correctly.

Consider adding basic but very common validation:

• Ensure groups, character classes, < are resolved
• No unresolved close group character )
• Ensure named capture group name validates \w+
• Ensure token precedes quantifier (?, *, +, {n,m})

Alternatively, this would be resolved once #1 is solved.