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Regular Expression Details

Title Test Find Non-triplicate character field
Expression
^(?i:([a-z])\1?(?!\1)){2,}$
Description
This was designed to match a single name field which required a minimum length of 2 characters and no triplicate characters.
Matches
John|Bob|Smith|Jones
Non-Matches
aa|aaa|Smiiith
Author Rating: Not yet rated. Jonathan Kight
Source
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