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Expressions by User

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Title Test Details Pattern Title
Expression
^((l((ll)|(b)|(bb)|(bbb)))|(bb*))$
Description
Regular expression to recognise messages formed with "beeps" of IBM mainboards, when the computer makes the Power On Self Test. "b" means "short beep", and "l" means "long beep".
Matches
lll | lb | bbb
Non-Matches
bbbl | bbblll | lbbbb
Author Rating: Not yet rated. Manny Calaveras
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