/de{1,3}f/ matches d, followed by one, two, or three occurrences of e, followed by f. : Pattern matching « Regular Expression « Perl

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Perl » Regular Expression » Pattern matching

/de{1,3}f/ matches d, followed by one, two, or three occurrences of e, followed by f.


    



To specify an exact number of occurrences, include only one value between the { and the }. 



/de{3}f/ specifies exactly three occurrences of e, which means this pattern only matches deeef.

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