/// <summary>
/// Creates a new event reader based on the specified data reader using the specified context generator.
/// </summary>
/// <param name="dataReader">
/// The data reader for this event reader.
/// </param>
/// <param name="contextGenerator">
/// The context generator which should be used in the creation of events for this event reader.
/// </param>
public ChunkerEventReader(SharpEntropy.ITrainingDataReader<string> dataReader, IChunkerContextGenerator contextGenerator)
{
mContextGenerator = contextGenerator;
mDataReader = dataReader;
mEventIndex = 0;
if (dataReader.HasNext())
{
AddNewEvents();
}
else
{
mEvents = new SharpEntropy.TrainingEvent[0];
}
}
/// <summary>
/// Create an event reader based on the specified data reader of the specified type using the specified head rules.
/// </summary>
/// <param name="dataReader">
/// A 1-parse-per-line Penn Treebank Style parse.
/// </param>
/// <param name="rules">
/// The head rules.
/// </param>
/// <param name="eventType">
/// The type of events desired (tag, chunk, build, or check).
/// </param>
public ParserEventReader(SharpEntropy.ITrainingDataReader<string> dataReader, IHeadRules rules, EventType eventType)
{
if (eventType == EventType.Build)
{
mBuildContextGenerator = new BuildContextGenerator();
}
else if (eventType == EventType.Check)
{
mCheckContextGenerator = new CheckContextGenerator();
}
else if (eventType == EventType.Chunk)
{
mChunkContextGenerator = new ChunkContextGenerator();
}
else if (eventType == EventType.Tag)
{
mPosContextGenerator = new PosTagger.DefaultPosContextGenerator();
}
mHeadRules = rules;
mEventType = eventType;
mDataReader = dataReader;
mEventIndex = 0;
if (dataReader.HasNext())
{
AddNewEvents();
}
else
{
mEvents = new SharpEntropy.TrainingEvent[0];
}
}