Re: regexp: non-capturing grouping in replacement possible?

Can not a simpler approach give you what you're looking for? capture the 3 which is preceded by 0s, remove those 0s and preserve the 3..

my $str = 'hello kitty 003x009 spanish';
$str =~ s/0*(3)/$1/;
print $str;
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Re^2: regexp: non-capturing grouping in replacement possible? by diweooy (Novice) on Nov 26, 2009 at 14:21 UTC
thanks but it is not about zeros but about learning. I could remove zeroes with a simple 0. `$str =~ s/^(hello kitty )0(\d+)(x\d+.*)$/$1$2$3/;` [download]	[reply] [d/l]
Re^3: regexp: non-capturing grouping in replacement possible? by happy.barney (Friar) on Nov 26, 2009 at 16:14 UTC
learning? this one also removes any leading zero of number after "hello kitty" :-) `s/(?<=hello kitty )0*(?=\d(?!\d))//` [download] Update: oops, small mistake, `\b` replaced with `(?!\d)`	[reply] [d/l] [select]