Re: Regex, how to capture within repetition?

[Jeff 'japhy/Marillion' Pinyan]

On Jul 18, [EMAIL PROTECTED] said:

>my $str = "Account \@id='1' or \@id='2' or \@id='3' or \@id='4'";
>
>my $reg = qr{(?:\@id='(\d+)'\s*or\s*)*\@id='(\d+)'};

It doesn't work because of the way quantifiers (like *) work on
sub-patterns.

To get around it, use a global match:

  if ($str =~ /Account /g) {
    push @IDs, $1 while $str =~ /\G\@id='(\d+)'(?: or |$)/g;
  }

There are other, more fiendish ways of doing what you request (with ONE
regex), but I dare not show them here.

-- 
Jeff "japhy" Pinyan      [EMAIL PROTECTED]      http://www.pobox.com/~japhy/
I am Marillion, the wielder of Ringril, known as Hesinaur, the Winter-Sun.
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Perl Programmer at RiskMetrics Group, Inc.     http://www.riskmetrics.com/
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**      Manning Publications, Co, is publishing my Perl Regex book      **


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