I liked this solution, but since it felt a little "idiomatic" to me, I thought it might also be idiomatic to someone even newer to perl. So, I rewrote it in a way that was a bit easier for me to understand. Mainly I just put conditionals in parens, bracked off the results, and filled in the default variables where they were being assumed. 
use strict;
use warnings;
use Data::Dumper;

my $content = "";
my ($key, %data);

while (<DATA>)
{
    if ( $_ =~ /^CALCON\((\w+)\)/ ) {
        $key = $1;
    } else {
        if ( $_ =~ /^\s+(\w+)\(([\w\d\s]+)\)/ ) {
            $data{$key}->{$1} = $2 ;    
        }
    }    
}

print Dumper(\%data);

__DATA__

CALCON(test1)
{
  TYPE(U8)
  FEATURE(DCOM)
  NAM(stmin)
  LABEL(Min seperation time between CFs)
  MIN(0)
  MAX(127)
  UNITS(ms)  
}

CALCON(test2)
{
  TYPE(U16)
  FEATURE(DCOM)
  NAM(dcomc_sestmr_timeout)
  LABEL(DCOM Session Timer Timeout)
  MIN(0)
  MAX(65535)
  UNITS(ms)
}

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In reply to Re^2: nested reg ex over multiple lines by tphyahoo
in thread nested reg ex over multiple lines by eg8rds

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