private bool IsUnapplicationNonvacuous(Match <Word, ShapeNode> match, IEnumerable <FeatureStruct> rhsAntiFSs)
{
int i = 0;
foreach (FeatureStruct fs in rhsAntiFSs)
{
ShapeNode node = match.GroupCaptures["target" + i].Span.GetStart(match.Matcher.Direction);
foreach (SymbolicFeature sf in fs.Features.OfType <SymbolicFeature>())
{
SymbolicFeatureValue sfv = fs.GetValue(sf);
SymbolicFeatureValue nodeSfv;
if (node.Annotation.FeatureStruct.TryGetValue(sf, out nodeSfv))
{
if (sfv.IsVariable)
{
SymbolicFeatureValue varSfv;
if (!match.VariableBindings.TryGetValue(sfv.VariableName, out varSfv) || !nodeSfv.IsSupersetOf(varSfv, !sfv.Agree))
{
return(true);
}
}
else if (!nodeSfv.IsSupersetOf(sfv))
{
return(true);
}
}
}
i++;
}
return(false);
}
private bool AddSymbols(Feature feature, FeatureSymbol[] symbols, int id)
{
if (symbols.Any(s => s.Feature != feature))
{
return(false);
}
var symbolFeature = (SymbolicFeature)feature;
var value = new SymbolicFeatureValue(_not ? symbolFeature.PossibleSymbols.Except(symbols) : symbols);
_fs.AddValue(symbolFeature, value);
_not = false;
if (id > -1)
{
_ids[id] = value;
}
return(true);
}
private void AddVariable(string name, int id)
{
FeatureValue vfv;
if (_lastFeature is StringFeature)
{
vfv = new StringFeatureValue(name, !_not);
}
else
{
vfv = new SymbolicFeatureValue((SymbolicFeature)_lastFeature, name, !_not);
}
_fs.AddValue(_lastFeature, vfv);
_not = false;
if (id > -1)
{
_ids[id] = vfv;
}
}
public static string GetString(this FeatureStruct fs)
{
var sb = new StringBuilder();
sb.Append("[");
bool firstFeature = true;
foreach (SymbolicFeature feature in fs.Features.Where(f => !CogFeatureSystem.Instance.ContainsFeature(f)).OfType <SymbolicFeature>())
{
if (!firstFeature)
{
sb.Append(",");
}
sb.Append(feature.Description);
sb.Append(":");
SymbolicFeatureValue fv = fs.GetValue(feature);
FeatureSymbol[] symbols = fv.Values.ToArray();
if (symbols.Length > 1)
{
sb.Append("{");
}
bool firstSymbol = true;
foreach (FeatureSymbol symbol in symbols)
{
if (!firstSymbol)
{
sb.Append(",");
}
sb.Append(symbol.Description);
firstSymbol = false;
}
if (symbols.Length > 1)
{
sb.Append("}");
}
firstFeature = false;
}
sb.Append("]");
return(sb.ToString());
}
private void TestBinaryOperation <TResult>(IEqualityComparer <TResult> comparer, Func <FeatureStruct, FeatureStruct, TResult> resultsSelector,
Func <FeatureStruct, FeatureStruct, VariableBindings, TResult> varResultsSelector, params Func <FeatureSystem, TResult>[] expectedSelectors)
{
// simple
var featSys = new FeatureSystem
{
new SymbolicFeature("a", new FeatureSymbol("a1"), new FeatureSymbol("a2"), new FeatureSymbol("a3")),
new SymbolicFeature("b", new FeatureSymbol("b1"), new FeatureSymbol("b2"), new FeatureSymbol("b3")),
new SymbolicFeature("c", new FeatureSymbol("c1"), new FeatureSymbol("c2"), new FeatureSymbol("c3"))
};
featSys.Freeze();
FeatureStruct fs1 = FeatureStruct.NewMutable(featSys).Symbol("a1").Symbol("b1").Value;
FeatureStruct fs2 = FeatureStruct.NewMutable(featSys).Symbol("a2").Symbol("c2").Value;
Assert.That(resultsSelector(fs1, fs2), Is.EqualTo(expectedSelectors[0](featSys)).Using(comparer));
fs1 = FeatureStruct.NewMutable(featSys).Symbol("a1", "a2").Symbol("b1").Symbol("c2").Value;
fs2 = FeatureStruct.NewMutable(featSys).Symbol("a2").Symbol("c2").Value;
Assert.That(resultsSelector(fs1, fs2), Is.EqualTo(expectedSelectors[1](featSys)).Using(comparer));
// complex
featSys = new FeatureSystem
{
new ComplexFeature("cx1"),
new SymbolicFeature("a", new FeatureSymbol("a1"), new FeatureSymbol("a2"), new FeatureSymbol("a3")),
new ComplexFeature("cx2"),
new SymbolicFeature("b", new FeatureSymbol("b1"), new FeatureSymbol("b2"), new FeatureSymbol("b3")),
new ComplexFeature("cx3"),
new SymbolicFeature("c", new FeatureSymbol("c1"), new FeatureSymbol("c2"), new FeatureSymbol("c3")),
new ComplexFeature("cx4"),
new SymbolicFeature("d", new FeatureSymbol("d1"), new FeatureSymbol("d2"), new FeatureSymbol("d3"))
};
featSys.Freeze();
fs1 = FeatureStruct.NewMutable(featSys).Feature("cx1").EqualTo(cx1 => cx1.Symbol("a1"))
.Feature("cx2").EqualTo(cx2 => cx2.Symbol("b1"))
.Feature("cx4").EqualTo(cx4 => cx4.Symbol("d1")).Value;
fs2 = FeatureStruct.NewMutable(featSys).Feature("cx1").EqualTo(cx1 => cx1.Symbol("a2"))
.Feature("cx3").EqualTo(cx2 => cx2.Symbol("c2"))
.Feature("cx4").EqualTo(cx4 => cx4.Symbol("d2", "d3")).Value;
Assert.That(resultsSelector(fs1, fs2), Is.EqualTo(expectedSelectors[2](featSys)).Using(comparer));
fs1 = FeatureStruct.NewMutable(featSys).Feature("cx1").EqualTo(cx1 => cx1.Symbol("a1", "a2"))
.Feature("cx2").EqualTo(cx2 => cx2.Symbol("b1"))
.Feature("cx4").EqualTo(cx4 => cx4.Symbol("d1")).Value;
fs2 = FeatureStruct.NewMutable(featSys).Feature("cx1").EqualTo(cx1 => cx1.Symbol("a2"))
.Feature("cx3").EqualTo(cx2 => cx2.Symbol("c2"))
.Feature("cx4").EqualTo(cx4 => cx4.Symbol("d1", "d2")).Value;
Assert.That(resultsSelector(fs1, fs2), Is.EqualTo(expectedSelectors[3](featSys)).Using(comparer));
// re-entrant
featSys = new FeatureSystem
{
new ComplexFeature("cx1"),
new SymbolicFeature("a", new FeatureSymbol("a1"), new FeatureSymbol("a2"), new FeatureSymbol("a3"), new FeatureSymbol("a4")),
new ComplexFeature("cx2")
};
featSys.Freeze();
fs1 = FeatureStruct.NewMutable(featSys).Feature("cx1").EqualTo(1, cx1 => cx1.Symbol("a1"))
.Feature("cx2").ReferringTo(1).Value;
fs2 = FeatureStruct.NewMutable(featSys).Feature("cx2").EqualTo(cx2 => cx2.Symbol("a2")).Value;
Assert.That(resultsSelector(fs1, fs2), Is.EqualTo(expectedSelectors[4](featSys)).Using(comparer));
fs1 = FeatureStruct.NewMutable(featSys).Feature("cx1").EqualTo(cx1 => cx1.Symbol("a1", "a2")).Value;
fs2 = FeatureStruct.NewMutable(featSys).Feature("cx2").EqualTo(1, cx2 => cx2.Symbol("a1", "a3"))
.Feature("cx1").ReferringTo(1).Value;
Assert.That(resultsSelector(fs1, fs2), Is.EqualTo(expectedSelectors[5](featSys)).Using(comparer));
fs1 = FeatureStruct.NewMutable(featSys).Feature("cx1").EqualTo(cx1 => cx1.Symbol("a1", "a2")).Value;
fs2 = FeatureStruct.NewMutable(featSys).Feature("cx2").EqualTo(cx2 => cx2.Symbol(1, "a1", "a3"))
.Feature("cx1").EqualTo(cx1 => cx1.Feature("a").ReferringTo(1)).Value;
Assert.That(resultsSelector(fs1, fs2), Is.EqualTo(expectedSelectors[6](featSys)).Using(comparer));
fs1 = FeatureStruct.NewMutable(featSys).Feature("cx1").EqualTo(1, cx1 => cx1.Symbol("a1"))
.Feature("cx2").ReferringTo(1).Value;
fs2 = FeatureStruct.NewMutable(featSys).Feature("cx2").EqualTo(1, cx2 => cx2.Symbol("a1", "a2"))
.Feature("cx1").ReferringTo(1).Value;
Assert.That(resultsSelector(fs1, fs2), Is.EqualTo(expectedSelectors[7](featSys)).Using(comparer));
fs1 = FeatureStruct.NewMutable(featSys).Feature("cx1").EqualTo(1, cx1 => cx1.Symbol("a1", "a2"))
.Feature("cx2").ReferringTo(1).Value;
fs2 = FeatureStruct.NewMutable(featSys).Feature("cx2").EqualTo(1, cx2 => cx2.Symbol("a2", "a3", "a4"))
.Feature("cx1").ReferringTo(1).Value;
Assert.That(resultsSelector(fs1, fs2), Is.EqualTo(expectedSelectors[8](featSys)).Using(comparer));
fs1 = FeatureStruct.NewMutable(featSys).Feature("cx1").EqualTo(cx1 => cx1.Symbol(1, "a1", "a2"))
.Feature("cx2").EqualTo(cx2 => cx2.Feature("a").ReferringTo(1)).Value;
fs2 = FeatureStruct.NewMutable(featSys).Feature("cx2").EqualTo(cx2 => cx2.Symbol(1, "a2", "a3", "a4"))
.Feature("cx1").EqualTo(cx1 => cx1.Feature("a").ReferringTo(1)).Value;
Assert.That(resultsSelector(fs1, fs2), Is.EqualTo(expectedSelectors[9](featSys)).Using(comparer));
fs1 = FeatureStruct.NewMutable(featSys).Feature("cx1").EqualTo(cx1 => cx1.Symbol("a1", "a2")).Value;
fs2 = FeatureStruct.NewMutable(featSys).Feature("cx2").EqualTo(1, cx2 => cx2.Symbol("a3"))
.Feature("cx1").ReferringTo(1).Value;
Assert.That(resultsSelector(fs1, fs2), Is.EqualTo(expectedSelectors[10](featSys)).Using(comparer));
fs1 = FeatureStruct.NewMutable(featSys).Feature("cx1").EqualTo(1, cx1 => cx1.Symbol("a1"))
.Feature("cx2").ReferringTo(1).Value;
fs2 = FeatureStruct.NewMutable(featSys).Feature("cx2").EqualTo(1, cx2 => cx2.Symbol("a2", "a3", "a4"))
.Feature("cx1").ReferringTo(1).Value;
Assert.That(resultsSelector(fs1, fs2), Is.EqualTo(expectedSelectors[11](featSys)).Using(comparer));
// cyclic
featSys = new FeatureSystem
{
new ComplexFeature("cx1"),
new SymbolicFeature("a", new FeatureSymbol("a1"), new FeatureSymbol("a2"), new FeatureSymbol("a3")),
new SymbolicFeature("b", new FeatureSymbol("b1"), new FeatureSymbol("b2"), new FeatureSymbol("b3")),
new SymbolicFeature("c", new FeatureSymbol("c1"), new FeatureSymbol("c2"), new FeatureSymbol("c3")),
new ComplexFeature("cx2")
};
featSys.Freeze();
fs1 = FeatureStruct.NewMutable(featSys).Feature("cx1").EqualTo(cx1 => cx1
.Symbol("a1").Symbol("b1")).Value;
fs2 = FeatureStruct.NewMutable(featSys).Feature("cx1").EqualTo(1, cx1 => cx1
.Symbol("a2").Feature("cx2").ReferringTo(1)).Value;
Assert.That(resultsSelector(fs1, fs2), Is.EqualTo(expectedSelectors[12](featSys)).Using(comparer));
fs1 = FeatureStruct.NewMutable(featSys).Feature("cx1").EqualTo(1, cx1 => cx1
.Symbol("a1", "a2").Feature("cx2").ReferringTo(1)).Value;
fs2 = FeatureStruct.NewMutable(featSys).Feature("cx1").EqualTo(cx1 => cx1
.Symbol("a2").Symbol("b2")).Value;
Assert.That(resultsSelector(fs1, fs2), Is.EqualTo(expectedSelectors[13](featSys)).Using(comparer));
fs1 = FeatureStruct.NewMutable(featSys).Feature("cx1").EqualTo(cx1 => cx1
.Symbol("a1", "a2").Symbol("b1").Feature("cx2").EqualTo(cx2 => cx2.Symbol("c1"))).Value;
fs2 = FeatureStruct.NewMutable(featSys).Feature("cx1").EqualTo(1, cx1 => cx1
.Symbol("a2").Feature("cx2").ReferringTo(1)).Value;
Assert.That(resultsSelector(fs1, fs2), Is.EqualTo(expectedSelectors[14](featSys)).Using(comparer));
fs1 = FeatureStruct.NewMutable(featSys).Feature("cx1").EqualTo(cx1 => cx1
.Symbol("a1").Symbol("b1").Feature("cx2").EqualTo(cx2 => cx2.Symbol("c1", "c2"))).Value;
fs2 = FeatureStruct.NewMutable(featSys).Feature("cx1").EqualTo(1, cx1 => cx1
.Symbol("a2").Symbol("c2").Feature("cx2").ReferringTo(1)).Value;
Assert.That(resultsSelector(fs1, fs2), Is.EqualTo(expectedSelectors[15](featSys)).Using(comparer));
fs1 = FeatureStruct.NewMutable(featSys).Feature("cx1").EqualTo(1, cx1 => cx1
.Symbol("a1").Symbol("b1").Symbol("c1").Feature("cx2").ReferringTo(1)).Value;
fs2 = FeatureStruct.NewMutable(featSys).Feature("cx1").EqualTo(1, cx1 => cx1
.Symbol("a2").Symbol("c2").Feature("cx2").ReferringTo(1)).Value;
Assert.That(resultsSelector(fs1, fs2), Is.EqualTo(expectedSelectors[16](featSys)).Using(comparer));
// variable
featSys = new FeatureSystem
{
new SymbolicFeature("a", new FeatureSymbol("a+", "+"), new FeatureSymbol("a-", "-")),
new SymbolicFeature("b", new FeatureSymbol("b+", "+"), new FeatureSymbol("b-", "-"))
};
featSys.Freeze();
fs1 = FeatureStruct.NewMutable(featSys)
.Feature("a").EqualToVariable("var1")
.Symbol("b-").Value;
fs2 = FeatureStruct.NewMutable(featSys)
.Feature("a").Not.EqualToVariable("var1")
.Symbol("b-").Value;
Assert.That(resultsSelector(fs1, fs2), Is.EqualTo(expectedSelectors[17](featSys)).Using(comparer));
fs1 = FeatureStruct.NewMutable(featSys)
.Feature("a").EqualToVariable("var1")
.Symbol("b-").Value;
fs2 = FeatureStruct.NewMutable(featSys)
.Symbol("a+")
.Symbol("b-").Value;
Assert.That(resultsSelector(fs1, fs2), Is.EqualTo(expectedSelectors[18](featSys)).Using(comparer));
fs1 = FeatureStruct.NewMutable(featSys)
.Symbol("a+")
.Symbol("b-").Value;
fs2 = FeatureStruct.NewMutable(featSys)
.Feature("a").Not.EqualToVariable("var1")
.Symbol("b-").Value;
Assert.That(resultsSelector(fs1, fs2), Is.EqualTo(expectedSelectors[19](featSys)).Using(comparer));
fs1 = FeatureStruct.NewMutable(featSys)
.Symbol("a+")
.Symbol("b-").Value;
fs2 = FeatureStruct.NewMutable(featSys)
.Feature("a").Not.EqualToVariable("var1")
.Symbol("b-").Value;
var varBindings = new VariableBindings();
varBindings["var1"] = new SymbolicFeatureValue(featSys.GetSymbol("a-"));
Assert.That(varResultsSelector(fs1, fs2, varBindings), Is.EqualTo(expectedSelectors[20](featSys)).Using(comparer));
fs1 = FeatureStruct.NewMutable(featSys)
.Symbol("a+")
.Symbol("b-").Value;
fs2 = FeatureStruct.NewMutable(featSys)
.Feature("a").Not.EqualToVariable("var1")
.Symbol("b-").Value;
varBindings = new VariableBindings();
varBindings["var1"] = new SymbolicFeatureValue(featSys.GetSymbol("a+"));
Assert.That(varResultsSelector(fs1, fs2, varBindings), Is.EqualTo(expectedSelectors[21](featSys)).Using(comparer));
}
private void AddVariable(string name, int id)
{
FeatureValue vfv;
if (_lastFeature is StringFeature)
vfv = new StringFeatureValue(name, !_not);
else
vfv = new SymbolicFeatureValue((SymbolicFeature)_lastFeature, name, !_not);
_fs.AddValue(_lastFeature, vfv);
_not = false;
if (id > -1)
_ids[id] = vfv;
}
private bool AddSymbols(Feature feature, FeatureSymbol[] symbols, int id)
{
if (symbols.Any(s => s.Feature != feature))
return false;
var symbolFeature = (SymbolicFeature) feature;
var value = new SymbolicFeatureValue(_not ? symbolFeature.PossibleSymbols.Except(symbols) : symbols);
_fs.AddValue(symbolFeature, value);
_not = false;
if (id > -1)
_ids[id] = value;
return true;
}