`regexp` should be wrapped in try/catchs about ajv

[jasoniangreen]

Hi @RedHatter, you are right, it's not very helpful in this situation. Thanks for sharing the mitigating approach. I will try and raise it with the author sometime but there are other priorities at the moment, though I am curious why it wasn't just wrapped at the time. There might be some good reason why not.

I'll keep an eye on this issue too to see how requested a change in this area is.

[jasoniangreen]

I'll try and find time to fit in a fix on this but have other priorities so I'm also happy to review a PR by someone else.

[jasoniangreen]

Sorry @RedHatter but I want to check something. You said that the existing error doesn't show you the failing pattern but I get an error message like this:

SyntaxError: Invalid regular expression: /^[0-9]{2-4}/: Incomplete quantifier

[RedHatter]

The exact error message I got was

Uncaught SyntaxError: incomplete quantifier in regular expression

Note that this was in firefox. I didn't check the error message in any other browsers at the time.

[jasoniangreen]

Ah I see. It seems in node (at least version 18) you get a more useful message that includes the expression. I'll still keep it in mind because we could include the json schema path of the expression.