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RootAllomorph.cs
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RootAllomorph.cs
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using System.Linq;
namespace SIL.Machine.Morphology.HermitCrab
{
/// <summary>
/// This class represents an allomorph in a lexical entry.
/// </summary>
public class RootAllomorph : Allomorph
{
private readonly Segments _segments;
/// <summary>
/// Initializes a new instance of the <see cref="RootAllomorph"/> class.
/// </summary>
public RootAllomorph(Segments segments)
{
_segments = segments;
}
/// <summary>
/// Gets the segments.
/// </summary>
public Segments Segments
{
get { return _segments; }
}
public StemName StemName { get; set; }
public bool IsBound { get; set; }
/// <summary>
/// Does this represent a lexical pattern (e.g. [Seg]*)?
/// </summary>
public bool IsPattern
{
get
{
foreach (var node in _segments.Shape.GetNodes(_segments.Shape.Range))
{
if (
node.Annotation.Iterative
|| (node.Annotation.Optional && node.Annotation.Type() != HCFeatureSystem.Boundary)
)
{
return true;
}
}
return false;
}
}
protected override bool ConstraintsEqual(Allomorph other)
{
if (!(other is RootAllomorph otherAllo))
return false;
return base.ConstraintsEqual(other) && IsBound == otherAllo.IsBound;
}
protected override bool CheckAllomorphConstraints(Morpher morpher, Allomorph allomorph, Word word)
{
if (IsBound && word.Allomorphs.Count == 1)
{
if (morpher != null && morpher.TraceManager.IsTracing)
morpher.TraceManager.Failed(morpher.Language, word, FailureReason.BoundRoot, this, null);
return false;
}
if (StemName != null && !StemName.IsRequiredMatch(word.SyntacticFeatureStruct))
{
if (morpher != null && morpher.TraceManager.IsTracing)
morpher.TraceManager.Failed(morpher.Language, word, FailureReason.RequiredStemName, this, StemName);
return false;
}
foreach (
RootAllomorph otherAllo in ((LexEntry)Morpheme).Allomorphs.Where(a => a != this && a.StemName != null)
)
{
if (!otherAllo.StemName.IsExcludedMatch(word.SyntacticFeatureStruct, StemName))
{
if (morpher != null && morpher.TraceManager.IsTracing)
{
morpher.TraceManager.Failed(
morpher.Language,
word,
FailureReason.ExcludedStemName,
this,
otherAllo.StemName
);
}
return false;
}
}
return base.CheckAllomorphConstraints(morpher, allomorph, word);
}
}
}