Here is an approach that worked on the data you provided. I think it would replace your foreach loop.
Although, I'm not sure how you want your data printed with a '<br>' at the end of each line.
#!/usr/bin/perl
use strict;
use warnings;
use 5.014;
my ($file, $function, $tag);
printf "%-5s%-15s%s\n", qw/ Tags Function File /;
my @line = <DATA>;
for my $i (0 .. $#line) {
if ($line[$i] =~ /^File: (.+)$/) {
$file = $1;
}
elsif ($line[$i] =~ /^Function: (.+)$/) {
$function = $1;
}
elsif ($line[$i] =~ /^Tag: Yes$/) {
($tag) = $line[$i+1] =~ /(\d+)$/;
printf "%-5s%-15s%s\n", $tag, $function, $file;
}
}
__DATA__
File: check1.asm
Function: Monks
Tag: No
Tag: 001
Tag: Yes
Tag: 002
File: check2.asm
Function: Perl Monks
Tag: Yes
Tag: 003
Tag: No
Tag: 004
File: check3.asm
Function: Experts
Tag: No
Tag: 005
Tag: No
Tag: 006
Function: Perl Experts
Tag: No
Tag: 007
Tag: Yes
Tag: 008
Outputs
Tags Function File
002 Monks check1.asm
003 Perl Monks check2.asm
008 Perl Experts check3.asm
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