SOLVED

Hello folks,

I finally made it, not too good, but proper. I think there ain't no solution for that problem with one single match as I tried, so I'll use this workaround as I may assume there is a finite number of equal key words:

@address = $whois =~ m/(?:\{section1\}(?:\{section[\d]+\})*)\n(?:\S*(?
+<!key9):\s+[\S]+[^\n]+\n)+(?:key9:\s+([\S]+[^\n]+)\n)(?:key9:\s+([\S]
++[^\n]+)\n)?(?:key9:\s+([\S]+[^\n]+)\n)?(?:key9:\s+([\S]+[^\n]+)\n)?(
+?:(?<!key9):[^\n]+\n)*?/gs;
for (my $c = scalar @address; $c > 0; --$c) {
    pop @address
        unless defined $address[$c - 1];
}

[download]

This is the matched file format:

...
key6: key6_1

{section1}
key7: key7_1_section1
key8: key8_1_section1
key9: key9_1_section1
key9: key9_2_section1
key9: key9_3_section1
key10: key10_1_section1
key11: key11_1_section1
key12: key12_1_section1
key16: key16_1_section1
key17: key17_1_section1

{section2}{section3}
key7: key7_1_section2_section3
...

In reply to Re: Stuck with RegEx (Parsing whois output) by marsch
in thread Stuck with RegEx (Parsing whois output) by marsch

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