Provided all route metrics are zeroes:
cat /etc/sysconfig/netconf.C | tr '(' ' '| tr ')' ' ' | tr '"' ' '| tr ':' ' ' | tr '\t' ' '| tr -s ' '| sed -e 's/^ //' | sed 's/routes//' | awk '/route/ {printf("set static-route ");} /dest/ {printf("%s ",$2);} /via/ {printf("nexthop gateway address %s ",$2);} /metric/ {print "on"}'
The result:
set static-route 10.13.198.160/27 nexthop gateway address 10.12.12.1 on set static-route 10.13.198.192/27 nexthop gateway address 10.12.12.1 on set static-route 192.168.112.0/24 nexthop gateway address 10.12.12.1 on set static-route 192.168.113.0/24 nexthop gateway address 10.12.12.1 on set static-route 192.168.114.0/24 nexthop gateway address 10.12.12.1 on set static-route 192.168.115.0/24 nexthop gateway address 10.12.12.1 on set static-route default nexthop gateway address 10.0.0.1 on