Removed trans_comm.rs from the compiler. Updating aio/sio to work with the new chan and port system, started on a networking module for the standard library.

src/lib/net.rs

@@ -0,0 +1,30 @@
+import str;
+import ivec;
+import uint;
+
+tag ip_addr {
+    ipv4(u8, u8, u8, u8);
+}
+
+fn format_addr(ip : ip_addr) -> str {
+    alt(ip) {
+      ipv4(a, b, c, d) {
+        #fmt("%u.%u.%u.%u",
+             a as uint,
+             b as uint,
+             c as uint,
+             d as uint)
+      }
+      _ { fail "Unsupported address type"; }
+    }
+}
+
+fn parse_addr(ip : str) -> ip_addr {
+    let parts = ivec::map(uint::from_str, str::split(ip, ".".(0)));
+    if ivec::len(parts) != 4u { fail "Too many dots in IP address"; }
+    for i in parts { if i > 255u { fail "Invalid IP Address part."; } }
+    ipv4(parts.(0) as u8,
+         parts.(1) as u8,
+         parts.(2) as u8,
+         parts.(3) as u8)
+}