private void resetEngine()
{
this.pe = new PrologEngine(new SpaceIO("[VS:csp] "));
SpaceIO.loadSource(ref pe);
VSAlgo.logProlog("---Engine reset---");
}
//execute next query with optional removal of items
public void nextQuery(string cmd, int atpos = -1)
{
VSHistoryItem hi = new VSHistoryItem(ref cmd);
if (atpos >= 0)
{
this.items.RemoveRange(atpos, (this.items.Count - atpos));
this.resetEngine();
//rebuild history
VSAlgo.setUserStatus("odtwarzanie historii...");
for (int i = 0; i <= atpos; i++)
{
this.pe.Query = this.buildQuery(this.items[i].cmd, i);
foreach (PrologEngine.ISolution s in this.pe.SolutionIterator)
{
if (this.pe.Error)
{
VSAlgo.reportError("niepowodzenie w odtwarzaniu historii; sprawdź konsolę",
"History rewind error on item " + i + ": " + s,
"History rewind error on item " + i);
this.pe.clearError();
}
}
this.persist();
}
}
this.pe.Query = this.buildQuery(cmd, atpos);
VSAlgo.logProlog("Exec: " + this.pe.Query, false);
bool first = true;
foreach (PrologEngine.ISolution s in this.pe.SolutionIterator)
{
if (this.pe.Error)
{
VSAlgo.reportError("nieudane zatwierdzanie; sprawdź konsolę",
"History commit error: " + s,
"History commit error");
this.pe.clearError();
}
else if (first)
{
foreach (PrologEngine.IVarValue vv in s.VarValuesIterator)
{
if (vv.Name == "UpdatedG")
{
hi.gen = vv.Value.ToString();
}
else if (vv.Name == "UpdatedS")
{
hi.spec = vv.Value.ToString();
}
}
VSAlgo.setUserStatus("aktualizacja przestrzeni...");
VSAlgo.logPrologCont(s.ToString());
//don't crawl through other results
first = false;
}
else
{
break;
}
}
this.persist();
if (!VSAlgo.Error)
{
bool solved = false;
this.setLists(hi.spec, ref hi.listSpec);
this.setLists(hi.gen, ref hi.listGen);
VSAlgo.setProposed(null);
hi.lviCmd.ForeColor = System.Drawing.Color.Yellow;
this.pe.Query = "covers_both(" + hi.gen + ", " + hi.spec + ")";
foreach (PrologEngine.ISolution s in this.pe.SolutionIterator)
{
if (this.pe.Error)
{
VSAlgo.reportError("nieudane sprawdzenie pokrycia; sprawdź konsolę",
"Cover test error: " + s,
"Cover test error");
this.pe.clearError();
}
else if (solved = s.Solved)
{
SpaceForm.self.lvVSHistory.SelectedItems.Clear();
VSAlgo.setProposed(hi.listGen[0].Text);
}
else
{
break;
}
}
//add colors
if (!solved)
{
if (Regex.IsMatch(cmd, @"^[ ]*(negative)\(.*$"))
{
hi.lviCmd.ForeColor = System.Drawing.Color.DarkRed;
}
else
{
hi.lviCmd.ForeColor = System.Drawing.Color.DarkGreen;
}
}
this.items.Add(hi);
}
}