while (<>) {
    s/\r?\n//; # strip line endings
    # get field numbers and field description
    if (/\s{2,3}(\d+)\. (.+)/) {
        my ($number, $text) = ($1,$2);
        $number--; # since first element of an array is 0, not 1
        # if this field denotes string length, store it
        if ($text =~ /string length/i) {
            push(@lengths, $number);
        }
        # remember field number and text (only if not previously seen)
        $names{$number} = $text unless $names{$number};
        next; # nothing else to do for this line.
    }
    # now process the one line of data, if at hand
    if (/^====>/) { # Record Starter, right?
        # split line at whitespace
        my @array = split;
        # for all length indicators, concatenate
        # subsequent array elements into one
        # complain if the size doesn't fit
        for my $index (@lengths) {
            my $length = $array[$index];
            my $string;
            my $counter = 1;
            while (length $string < $length) {
                # join array elements with space to rebuild the field
                $string = join " ", $string, $array[$index + $counter]
+;
                warn "length mismatch for $string: $length <=> ".lengt
+h $string,"\n"
                    if length $string > $length + 1;
            }
            # weed out concatenated elements from array
            splice @array, $index + 1, $counter;
        }
        # done, output the fields
        for (sort {$a <=> $b} keys %names) {
            print "$names{$_}: $array[$_]\n";
        }
    }
}
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