Numbering of captures counts per match/regex, of which you have two here - the one with the 8-digit capture being evaluated last.

If you wanted to extract the 5-digit number from the first regex, you could simply reverse the order of the &&-combined tests: 

if (($arr =~ / (\w*)(def)(\d{8})/) && ($arr =~ /(\w*)(abc)(\d{5})/)) {

[download]

Now, $3 is the 5-digit number.

If you wanted to keep all captures, you could assign them to variables, e.g.: 

if (( my ($c1, $c2, $c3) = $arr =~ /(\w*)(abc)(\d{5})/)
 && ( my ($c4, $c5, $c6) = $arr =~ / (\w*)(def)(\d{8})/)) {

[download]

In reply to Re^3: Question on Regex grouping by Anonyrnous Monk
in thread Question on Regex grouping by ajguitarmaniac

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