I wasn't exactly sure what you wanted.
The code below parses the DATA and creates an Array of Hash.
That @AoH is then "dumped" to STDOUT. 
#!/usr/bin/perl -w
use strict;
use Data::Dumper;

my @AoH;

while (<DATA>)
{
   make_AoH_entry() if (/^define service{/);
}

print Dumper(\@AoH);

sub make_AoH_entry
{
   my %hash;
   while ( (my $line=<DATA>) !~ /^}/  )
   {
       next if ($line =~ m/^\s*$/);
       my ($name, $value) = ($line =~ m/\s*(\w+)\s+(.*)$/);
       $hash{$name} = $value;
   }
   push (@AoH, \%hash);
}
#==================
#Prints:
#$VAR1 = [
#          {
#            'use' => 'sam_win_cpu_load',
#            'host_name' => 'buo.va.com',
#            'contact_groups' => 'buo_admins'
#          },
#          {
#            'check_command' => 'check_service_state!MSSQLSERVER!publi
+c',
#            'service_description' => 'MS SQL Server',
#            'use' => 'generic-service',
#            'host_name' => 'buo.va.com',
#            'contact_groups' => 'buo_admins'
#          }
#        ];

__DATA__
define service{

        use                             sam_win_cpu_load

        host_name                       buo.va.com

        contact_groups                  buo_admins

}
define service{

        use                             generic-service

        host_name                       buo.va.com

        service_description             MS SQL Server

        check_command                   check_service_state!MSSQLSERVE
+R!public

        contact_groups            buo_admins

}

[download]

In reply to Re: How to parse a text file by Marshall
in thread How to parse a text file by xoroz

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