i need to allow regEx in allow property within the patterns so that i can allow [, .
Hey @rajkumar, unfortunately, I don't think that it is possible to allow the input of any other characters beside the default /[A-Za-z0-9]/g. The allow property is simply there to restrict the input to some specific characters out of that default range, so as an example, you could limit your input to numbers only (/[0-9]/g).
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