private static void CollectCallArgs(MemoryStore body, Hashtable callArgs)
{
foreach (Statement s in new MemoryStore(body)) { // make a copy since we remove statements from b within
if (FindUserPredicate(s.Predicate) == null) continue;
Entity subj = s.Subject;
if (!(subj is BNode)) continue; // it would be nice to exclude variables, but we've already converted bnodes to variables
BNode head = (BNode)subj;
ArrayList argList = new ArrayList();
while (true) {
Resource[] objs = body.SelectObjects(subj, entRDFFIRST);
if (objs.Length == 0) break; // if this is the first iteration, then we're just not looking at a list
// on later iterations, the list must not be well-formed, so we'll just
// stop reading it here
argList.Add(objs[0]); // assume a properly formed list
body.Remove(new Statement(subj, entRDFFIRST, null));
Resource[] rests = body.SelectObjects(subj, entRDFREST);
if (rests.Length == 0) break; // not well formed
body.Remove(new Statement(subj, entRDFREST, null));
if (rests[0] == entRDFNIL) break; // that's the end of the list
if (!(rests[0] is Entity)) break; // also not well formed
subj = (Entity)rests[0];
}
if (argList.Count > 0)
callArgs[head] = argList.ToArray(typeof(Resource));
}
}