/// <summary>
/// Initializes a new instance of the <see cref="Token" /> class with the specified sentence, span and lexeme.
/// </summary>
/// <param name="sentence">The sentence.</param>
/// <param name="span">The span.</param>
/// <param name="lexeme">The lexeme.</param>
/// <exception cref="System.ArgumentNullException">
/// <paramref name="sentence"/>
/// or
/// <paramref name="span"/>
/// </exception>
public Token(Sentence sentence, Span span, string lexeme) {
if (sentence == null)
throw new ArgumentNullException("sentence");
if (span == null)
throw new ArgumentNullException("span");
Sentence = sentence;
Start = span.Start;
End = span.End;
Lexeme = lexeme;
Probability = span.Probability;
}
/// <summary>
/// Initializes a new instance of the <see cref="Entity"/> class.
/// </summary>
/// <param name="span">The span.</param>
/// <param name="sentence">The sentence.</param>
/// <exception cref="System.ArgumentNullException">
/// <paramref name="span"/>
/// or
/// <paramref name="sentence"/>
/// </exception>
public Entity(Span span, Sentence sentence) {
if (span == null)
throw new ArgumentNullException("span");
if (sentence == null)
throw new ArgumentNullException("sentence");
CoveredText = span.GetCoveredText(sentence.Tokens);
for (var i = 0; i < span.Start; i++)
Start += sentence.Tokens[i].Length + 1;
Span = span;
}
/// <summary>
/// Initializes a new instance of the <see cref="Chunk"/> class.
/// </summary>
/// <param name="sentence">The sentence.</param>
/// <param name="span">The chunk span.</param>
public Chunk(Sentence sentence, Span span) {
HeadIndex = -1;
Span = span;
this.sentence = sentence;
}
/// <summary>
/// Creates an token object.
/// </summary>
/// <param name="sentence">The sentence.</param>
/// <param name="span">The token span.</param>
/// <param name="lexeme">The lexeme.</param>
/// <returns>The created <see cref="IToken" /> object.</returns>
public Token CreateToken(Sentence sentence, Span span, string lexeme) {
return new Token(sentence, span, lexeme) {
WordNet = WordNet
};
}
/// <summary>
/// Creates an entity object.
/// </summary>
/// <param name="sentence">The sentence where the entity is present.</param>
/// <param name="span">The entity span.</param>
/// <returns>The new <see cref="IEntity"/> object.</returns>
public Entity CreateEntity(Sentence sentence, Span span) {
return new Entity(span, sentence);
}
/// <summary>
/// Creates the <see cref="IChunk"/> object.
/// </summary>
/// <param name="sentence">The sentence.</param>
/// <param name="span">The chunk span.</param>
/// <returns>The <see cref="IChunk"/> representation.</returns>
public Chunk CreateChunk(Sentence sentence, Span span) {
if (sentence == null)
throw new ArgumentNullException("sentence");
if (span == null)
throw new ArgumentNullException("span");
return new Chunk(sentence, span);
}
/// <summary>
/// Initializes a new instance of the <see cref="Token"/> with the given parameters.
/// </summary>
/// <param name="sentence">The sentence.</param>
/// <param name="start">The start.</param>
/// <param name="end">The end.</param>
/// <param name="lexeme">The lexeme.</param>
/// <param name="lemmas">The lemmas.</param>
/// <param name="tag">The tag.</param>
/// <param name="features">The features.</param>
/// <exception cref="System.ArgumentNullException">
/// <paramref name="sentence"/>
/// </exception>
public Token(Sentence sentence, int start, int end, string lexeme, string[] lemmas, string tag, string features) {
if (sentence == null)
throw new ArgumentNullException("sentence");
Sentence = sentence;
Start = start;
End = end;
Lexeme = lexeme;
Lemmas = lemmas;
POSTag = tag;
Features = features;
}
/// <summary>
/// Initializes a new instance of the <see cref="Token"/> using the
/// <paramref name="start"/> - <paramref name="end"/> positions and the <paramref name="lexeme"/>.
/// </summary>
/// <param name="sentence">The sentence.</param>
/// <param name="start">The start.</param>
/// <param name="end">The end.</param>
/// <param name="lexeme">The lexeme.</param>
public Token(Sentence sentence, int start, int end, string lexeme)
: this(sentence, start, end, lexeme, null, null, null) {
}