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Regular Expression Details

Title Test Find Pattern Title
Expression
^1+0+$
Description
A simple regular expression to determine if a subnet mask is contiguous; that is, the submask must start with a 1 bit followed by 0 or more 1 bits, followed by 1 or more 0 bits until the end of the submask.
Matches
10 | 110 | 1100
Non-Matches
0 | 01 | 101
Author Rating: Not yet rated. Eldon Mellaney
Source
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