Perhaps something like this is what you need 
my @entries;
my $entry;
my $start_parsing = 0;
while(<DATA>){
    if(/\d-\d\d-ABC\d\d/){
        push(@entries, $entry) if(defined $entry);
        $entry = '';
        $start_parsing = 1;
    }
    next unless($start_parsing);
    $entry .= $_;
}
push(@entries, $entry) if(length($entry) > 0); #Last entry

my $i = 0;
foreach(@entries){
    print "Entry #$i:\n$_\n";
    $i++;
}

__DATA__
1-11-ABC22 (12:12)   ABC 12 Foo Bar Foo Bar
Foo Bar Foo Bar

2-15-ABC33 (12:12)   ABC 12 Foo Bar Foo Bar
Foo Bar Foo Bar
--
1-11-ABC33 (12:12)   ABC 12 Foo Bar Foo Bar
Foo bar Foo Bar
--
1-11-ABC33 (12:12)   ABC 12 Foo Bar Foo Bar
Foo abr Foo bar
Foo Bar
Foo Bar
Foo Bar
--
2-15-ABC45 (12:12)   ABC 12 Foo Bar Foo Bar
Foo Bar Foo Bar


3-33-ABC15 (12:12)   ABC 12 Foo Bar Foo Bar

[download]

-----------------------

Output is 
Entry #0:
1-11-ABC22 (12:12)   ABC 12 Foo Bar Foo Bar
Foo Bar Foo Bar


Entry #1:
2-15-ABC33 (12:12)   ABC 12 Foo Bar Foo Bar
Foo Bar Foo Bar
--

Entry #2:
1-11-ABC33 (12:12)   ABC 12 Foo Bar Foo Bar
Foo bar Foo Bar
--

Entry #3:
1-11-ABC33 (12:12)   ABC 12 Foo Bar Foo Bar
Foo abr Foo bar
Foo Bar
Foo Bar
Foo Bar
--

Entry #4:
2-15-ABC45 (12:12)   ABC 12 Foo Bar Foo Bar
Foo Bar Foo Bar

Entry #5:
3-33-ABC15 (12:12)   ABC 12 Foo Bar Foo Bar

[download]
Update: Took into account leading lines to be ignored.

- Tom

In reply to Re: Help Parsing a Text File by tcf22
in thread Help Parsing a Text File by PrimeLord

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