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Re: Problem with regular expression

by MARVion (Novice)
on Feb 13, 2013 at 09:38 UTC ( #1018510=note: print w/ replies, xml ) Need Help??


in reply to Problem with regular expression

Hi again,

well, with a litte change Utilitarian's Code works perfectly for me.

TFS[-_\s]?(?:CR|ID)?:?\s?([1-9]\d+)


However, I would appreciate it, if you could explain this section to me, as I'm not that familiar with regular expressions but for sure I want to learn to use them!

(?:CR|ID)?

Greetz

MARV


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Re^2: Problem with regular expression
by Utilitarian (Vicar) on Feb 13, 2013 at 13:24 UTC
    oops, I missed the one with a colon :(
    (?: # begin non capturing group CR|ID # alternation accepts either pattern group 'CR' or 'ID' )? # group is optional

    print "Good ",qw(night morning afternoon evening)[(localtime)[2]/6]," fellow monks."

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