Syntax Error

[beno]

Hi;
For some reason the parser likes this syntax in certain places but not 
in others:

1. # SETTING THE STAGE
2. # macros
3. ext_if="vr0"
4. int_if="lo0"
5. http_ports="80 8080 7080"
6. ssh_ports="22"
7. ftp_ports="21 8021 7021"
8. smtp_ports="25"
9. pop3_ports="110"
10. https_ports="443"
11. imap_ssl_ports="993 143"
12. squid_ports="3128"
13. mysql_ports="3306"
14. email_ports="{" $smtp_ports $pop3_ports "}"
15. all_http_ports="{" $http_ports $https_ports "}"
16. tcp_ports= "{" $ssh_ports $ftp_ports $all_http_ports $imap_ssl_ports "}"
17. int_ports="{" $squid_ports $mysql_ports "}"
18. tcp_services="ssh, ftp, http"
20. web_server="202.71.106.119"
21. NoRouteIPs = "127.0.0.0/8 192.168.0.0/16 172.16.0.0/12 10.0.0.0/8"
22. shinjiru_ip_addresses="202.71.102.114 202.71.100.126 202.71.106.30 
202.71.106.118 202.71.106.188 203.142.1.8"
23. directv_ip_addresses="69.19.0.0/17"
24. shadday_ip_addresses="70.19.0.0/17"
25. ssh_ip_addresses="{" $shinjiru_ip_addresses $directv_ip_addresses 
$shadday_ip_addresses "}"

server167# pfctl -f /etc/pf.conf && sleep 60 && pfctl -f /etc/pf.conf_BAK
/etc/pf.conf:16: syntax error
/etc/pf.conf:24: syntax error
pfctl: Syntax error in config file: pf rules not loaded

It appears to not like my using "$all_http_ports" in line 16 and one of 
the three in the last line (which the machine chooses to call 24 but it 
is actually referring to 25). Why?
beno