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Title |
Test
Details
Empty, Nothing, Nada
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Expression |
^.{0,0}
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Description |
Only accepts nothing. I know, sounds stupid, but useful for "Invisible Textbox Captcha". Bots will fill in a hidden textbox, and this expression busts them.
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Matches |
"only an empty string"
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Non-Matches |
absolutely any text whatsoever
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Author |
Rating:
Not yet rated.
Joe Hakooz
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