this is cool and all but the tables don't render properly

netsplit/funcs_cidrsplitter.go

@@ -1,14 +1,58 @@
 package netsplit
 
 import (
-	"go4.org/netipx"
 	"net/netip"
+
+	"go4.org/netipx"
 )
 
-// Split splits the network defined in a CIDRSplitter alongside its configuration and performs the subnetting.
+/*
+	Split splits the network defined in a CIDRSplitter alongside its configuration and performs the subnetting.
+	This strategy attempts to split a network into subnets of a single uniform explicit size.
+*/
 func (c *CIDRSplitter) Split() (nets []*netip.Prefix, remaining *netipx.IPSet, err error) {
 
-	// TODO
+	var ok bool
+	var base netip.Prefix
+	var sub netip.Prefix
+	var subPtr *netip.Prefix
+	var ipsb *netipx.IPSetBuilder = new(netipx.IPSetBuilder)
+
+	if c == nil || c.PrefixLength == 0 || c.BaseSplitter == nil || c.network == nil {
+		return
+	}
+
+	if base, ok = netipx.FromStdIPNet(c.network); !ok {
+		err = ErrBadBoundary
+		return
+	}
+	if !base.IsValid() {
+		err = ErrBadBoundary
+		return
+	}
+
+	if c.PrefixLength > uint8(base.Bits()) {
+		err = ErrBigPrefix
+		return
+	}
+
+	ipsb.AddPrefix(base)
+	if remaining, err = ipsb.IPSet(); err != nil {
+		return
+	}
+
+	for {
+		if sub, remaining, ok = remaining.RemoveFreePrefix(c.PrefixLength); !ok {
+			if !sub.IsValid() {
+				// No error; it's literally impossible since we network on boundaries.
+				// We just hit the end of the prefix.
+				break
+			}
+			subPtr = new(netip.Prefix)
+			*subPtr = sub
+			nets = append(nets, subPtr)
+		}
+	}
 
 	return
 }