split protos by commas, and ranges by :

Want to be able express ports, protos, etc, with compressed syntax
eventually. One day I'd like to be able to express this at a high
level

allowed_protos = 6,16,icmp,49:51,hipl

and then do it in ONE iptables rule, rather than 8.

src/proto_split.lua

@@ -0,0 +1,26 @@
+#!/usr/bin/lua 
+
+-- split
+
+-- FIXME we want to construct a two dimensional table
+-- then join it
+
+function proto_split(s,max)
+   c = 1
+   t = split(',',s)
+   p = 0
+   for i,v in ipairs(t) do
+      c = c + (p = # split(':',v))
+      if c > max then 
+	 n = n + 1
+	 s[n] = v 
+	 c = p
+      else 
+	 s[n] = s[n] .. "," .. v 
+      end
+   end
+   return(s)
+end
+
+t = proto_split("a,b,c,d,e,f,g,h,i:j",4)
+print(# t)

src/testenv.lua

@@ -0,0 +1,15 @@
+#!/usr/bin/lua
+
+require 'ceroenv'
+ceroenv.wtf()
+env = ceroenv.new()
+ceroenv.show()
+
+PPREREQ= {sch_sfq,sch_red,cls_flow,cls_none}
+if ceroenv.prereq(PPREREQ) ~= nil then
+   print("Awesome")
+end
+
+
+-- print(ceroenv.ge("SHELL"))
+-- print(ceroenv.env["QMODEL"])