public static Stream Createf(IDir self, String unixPath, ConDyn cd) {
if (unixPath == null) throw new StorException("unixPath is null");
if (unixPath.StartsWith("/")) {
return Createf(GetRoot(self), unixPath.Substring(1), cd);
}
int p = unixPath.IndexOf('/');
String s1 = (p < 0) ? unixPath : unixPath.Substring(0, p);
String s2 = (p < 0) ? null : unixPath.Substring(1 + p);
if (s1 == ".") {
return Createf(self, s2, cd);
}
if (s1 == "..") {
return Createf(self.ParentDir, s2, cd);
}
if (s2 == null) {
MacfNam m2 = cd.ParseName(s1);
try {
self.CreatefHere(m2.Name);
}
catch (DSIException err) {
if (err.ErrorCode == (int)AFPt2.DSIException.ResultCode.kFPObjectExists) {
}
else throw new StorException("Failed", err);
}
IEnt o2 = self.FindReal(m2.Name);
if (false) { }
else if (m2.Ty == Forkty.Data && o2 is ICanUP) return ((ICanUP)o2).OpenWrite(false);
else if (m2.Ty == Forkty.Res && o2 is ICanUP) return ((ICanUP)o2).OpenWrite(true);
else if (m2.Ty == Forkty.Finder && o2 is ICanUPFi) return ((ICanUPFi)o2).OpenWriteFinder();
else throw new StorException("We can't write to \"" + o2.Name + "\".");
}
IEnt o = self.FindReal(s1);
if (o is IDir) {
return Createf((IDir)o, s2, cd);
}
else if (o != null) {
throw new StorException("We knew \"" + o.Name + "\" is a file.");
}
throw new StorException("We can't be here for \"" + o.Name + "\".");
}