Studio Validator for regexp validator string for TextFields

[timolemke]

the regexp validation string entered by editors in studio should be validated. If not validated successful a readable warning or error message should be presented to the editor

[timolemke]

Validating the struct by a studio validator might be to slow, because the whole struct has to be parsed each time a change is entered.
Validating the input on the client side would be better. And the regexp validator string is not relevant for security, therefore a server-side validation is not mandatory. Imho...