my @matches;
my $FOUND = 0;
my %info = {};
while (<INFILE>) {

   chomp $_;

   if (($_ =~ /^id/) and ($FOUND)) {
      push @matches \%info;
      $FOUND = 0;
      %info = {}
   }

   if ($_ =~ /^id/)      { (undef, $info{id})      = split / /, $_}
   if ($_ =~ /^address/) { (undef, $info{address}) = split / /, $_}
   if ($_ =~ /^name/)    { (undef, $info{fname})   = split / /, $_}
   ...

   if ($searchPattern eq $info{fname}) {
      $FOUND = 1;
   }
}