Determine if string is empty using current state node

I’m using a current state node to pull in text from an input_text field in HA.
Is there a way to stop the flow right there at the current state node if the text field is empty? I’m trying to avoid using a switch node if possible.
I see all types of ‘if state’ options but not sure if any of them will check for an empty string.

Should be able to use a regex ^$

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That did it. Thanks