Using match variable $1 for a substitution in Perl
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Published on 2010-04-13T21:46:38Z
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2010/04/13
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What is the cleanest way of picking up a match variable form a subsitution in Perl I sometimes find myself writing
s/(something)// ;
my $x = $1 ;
then I realise that if the s/ / / fails $1 might be carrying over a value from a previous match. So I try
my $x = 'defaultvalue' ;
if ( s/(something)// )
{
$x = $1 ;
}
Is this be cleanest way of doing it.
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