I have an input file data

int abc;

.abc(pqr)

.abc(abc_p)

I want the output data as

int abc_1;

int abc_2;

.abc(pqr)

.abc_1(abc_p_1)

.abc_2(abc_p_2) 

use strict;
use warnings;

my $data = <<IN;
int abc;
.abc(pqr)
.abc(abc_p)
IN

my $a = qr{ [ .(] }xms;
my $b = qr{  abc_p | abc }xms;

open my $fh, '<', \$data;

while (my $line = <$fh>) {

    if ($line =~ m{ $a $b }xms) {
        for my $i (1 .. 2) {
            (my $c = $line) =~ s{ ($a $b) }{${1}_$i}xmsg;
            print $c;
        }
    } else {
        print $line;
    }
}

[download]
Can you please point me where is the mistake in the code.

In reply to Not getting proper output value by suvendra123

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