How to implement regex in Bot composer ? Below I have a scenario where user can enter any thing like: Qna-1234, Qna-{1234} etc. From above I want to display only 1234 in the response. How can I achieve this it will be very helpful if provided some solution.
Yes, there is a workaround to achieve this requirement without regex. You can update the expected user responses section. You can define an entity to extract just an Id from user expressions. Refer below screenshots for details.
You can see here that adaptive expressions only have one regular expression function, and it returns a Boolean value. If you would like the Bot Framework team to create a new prebuilt function for you, you can make a feature request here: https://github.com/microsoft/botframework-sdk/issues/new/choose
In the meantime, you can create your own custom actions by following these instructions: https://docs.microsoft.com/composer/how-to-add-custom-action
