The following code only goes over the content one time, each line is processed on fly:
use strict;
my @wanted_lines;
open(FILEHANDLE, "<", "your.pl");
my $wanted = 0;
my $finished = 0;
my $line;
do {
$line = <FILEHANDLE>;
if ($line =~ m/my\s+\$obj\s+=\s+{/) {
$wanted = 1;
} else {
if ($wanted) {
if ($line =~ m/^\s*};/) {
$wanted = 0;
$finished = 1;
} else {
$line =~ m/\s*(\w+)\s*=>\s*(.*?),/;
push @wanted_lines, "\"$1\"$2";
}
}
}
} until ($finished || !defined($line));
close(FILEHANDLE);
print join("\n",@wanted_lines);
(You have to modify it a little bit to meet your exact output format.)
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