public void AllomorphEnvironments()
{
var vowel = FeatureStruct.New(Language.PhonologicalFeatureSystem).Symbol("voc+").Value;
LexEntry headEntry = Entries["32"];
Pattern <Word, ShapeNode> envPattern = Pattern <Word, ShapeNode> .New().Annotation(vowel).Value;
var env = new AllomorphEnvironment(ConstraintType.Require, null, envPattern);
headEntry.PrimaryAllomorph.Environments.Add(env);
var word = new Word(headEntry.PrimaryAllomorph, FeatureStruct.New().Value);
ShapeNode node = word.Shape.Last;
LexEntry nonHeadEntry = Entries["40"];
word.Shape.AddRange(nonHeadEntry.PrimaryAllomorph.Segments.Shape.AsEnumerable().CloneItems());
Annotation <ShapeNode> nonHeadMorph = word.MarkMorph(word.Shape.GetNodes(node.Next, word.Shape.Last),
nonHeadEntry.PrimaryAllomorph);
Assert.That(env.IsWordValid(word), Is.True);
word.RemoveMorph(nonHeadMorph);
nonHeadEntry = Entries["41"];
word.Shape.AddRange(nonHeadEntry.PrimaryAllomorph.Segments.Shape.AsEnumerable().CloneItems());
nonHeadMorph = word.MarkMorph(word.Shape.GetNodes(node.Next, word.Shape.Last),
nonHeadEntry.PrimaryAllomorph);
Assert.That(env.IsWordValid(word), Is.False);
headEntry.PrimaryAllomorph.Environments.Clear();
env = new AllomorphEnvironment(ConstraintType.Require, envPattern, null);
headEntry.PrimaryAllomorph.Environments.Add(env);
word.RemoveMorph(nonHeadMorph);
node = word.Shape.First;
nonHeadEntry = Entries["40"];
word.Shape.AddRangeAfter(word.Shape.Begin,
nonHeadEntry.PrimaryAllomorph.Segments.Shape.AsEnumerable().CloneItems());
nonHeadMorph = word.MarkMorph(word.Shape.GetNodes(word.Shape.First, node.Prev),
nonHeadEntry.PrimaryAllomorph);
Assert.That(env.IsWordValid(word), Is.True);
word.RemoveMorph(nonHeadMorph);
nonHeadEntry = Entries["41"];
word.Shape.AddRangeAfter(word.Shape.Begin,
nonHeadEntry.PrimaryAllomorph.Segments.Shape.AsEnumerable().CloneItems());
word.MarkMorph(word.Shape.GetNodes(word.Shape.First, node.Prev), nonHeadEntry.PrimaryAllomorph);
Assert.That(env.IsWordValid(word), Is.False);
}
internal virtual bool IsWordValid(Morpher morpher, Word word)
{
AllomorphEnvironment env = Environments.FirstOrDefault(e => !e.IsWordValid(word));
if (env != null)
{
if (morpher.TraceManager.IsTracing)
{
morpher.TraceManager.Failed(morpher.Language, word, FailureReason.Environments, this, env);
}
return(false);
}
AllomorphCoOccurrenceRule alloRule = AllomorphCoOccurrenceRules.FirstOrDefault(r => !r.IsWordValid(word));
if (alloRule != null)
{
if (morpher.TraceManager.IsTracing)
{
morpher.TraceManager.Failed(morpher.Language, word, FailureReason.AllomorphCoOccurrenceRules, this, alloRule);
}
return(false);
}
MorphemeCoOccurrenceRule morphemeRule = Morpheme.MorphemeCoOccurrenceRules.FirstOrDefault(r => !r.IsWordValid(word));
if (morphemeRule != null)
{
if (morpher.TraceManager.IsTracing)
{
morpher.TraceManager.Failed(morpher.Language, word, FailureReason.MorphemeCoOccurrenceRules, this, morphemeRule);
}
return(false);
}
return(true);
}