Checking for multiple occurrences : Frequency « Regular Expression « Perl

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Perl » Regular Expression » Frequency

Checking for multiple occurrences


   



Pattern     Interpretation

/a{1,4}/    Matches one, two, three, or four as.

/a{2}/      Matches two as.

/a{0,2}/    Matches one or two as.

Related examples in the same category

1.	Check the frequency
2.	Match zero or one characters
3.	To specify a maximum number of occurrences, use 0 as the lower bound.
4.	To specify a minimum number of occurrences, leave off the upper bound.

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