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Re: A regular expression that will work for (hh:)mm:ss [converting clock time to seconds]

by Riales (Hermit)
on Apr 13, 2012 at 00:35 UTC ( #964845=note: print w/replies, xml ) Need Help??


in reply to A regular expression that will work for (hh:)mm:ss [converting clock time to seconds]

You want the ? which allows 0 or 1 occurrence of the preceding element.

my $timeRegex = '((?:[0-1][0-9]:)?[0-5][0-9]:[0-5][0-9])';
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Re^2: A regular expression that will work for (hh:)mm:ss [converting clock time to seconds]
by aware74 (Initiate) on Apr 13, 2012 at 16:08 UTC

    Thank you. This is what happens when you don't fully understand the regex that is generated for you.