`regexp` should be wrapped in try/catchs

[RedHatter]

What version of Ajv you are you using? 8.17.1

What problem do you want to solve? Tracking down invalid regex.

What do you think is the correct solution to problem? An invalid regex in the schema (in my case ^[0-9]{2-4}) throws an error without any indication where in the schema or what pattern failed. When you have a large schema this makes it difficult to track down exactly where the bad pattern is. There's a todo in the code about this.

This can be somewhat mitigated by use the regExp option.

new Ajv({
  code: {
    regExp: (pattern: string, u: string) => {
      try {
        return new RegExp(pattern, u)
      } catch (e) {
        console.error('Bad RegExp: ', pattern, e)
      }
    },
  }
})

However this only displays the bad pattern not where in the schema it's used.

Will you be able to implement it? No.