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Re^2: Array Filter and Lookahead

by AnomalousMonk (Canon)
on Nov 20, 2012 at 20:13 UTC ( #1004787=note: print w/ replies, xml ) Need Help??

in reply to Re: Array Filter and Lookahead
in thread Array Filter and Lookahead

>perl -wMstrict -le "my @test = ('0 xx', 'xx 0', '0'); ;; my @test_filtered = map { (/(\d+)[\d.]*/g)[-1] || '' } @test; printf qq{'$_' } for @test_filtered; " '' '' ''

Update:  // vice  || does the trick.

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Re^3: Array Filter and Lookahead
by Kenosis (Priest) on Nov 20, 2012 at 20:29 UTC

    Excellent catch, thank you! Changed disjunct positions...

      Changed disjunct positions...

      But that just causes a problem for strings that have no digits at all, e.g., 'xxx', which daugh016 wants to extract as '' (empty string).

        I think today is two of those days... The //, as you suggested, is best. Thank you, again...

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