public IEnumerable <string> GenerateSequence()
{
IMarkovNode <string> start = GetNode(Constants.SentenceStart);
IMarkovNode <string> end = GetNode(Constants.SentenceBreak);
return(GetSequenceInternal(start, end));
}
public string GenerateSentence()
{
IMarkovNode <string> start = GetNode(Constants.SentenceStart);
IMarkovNode <string> end = GetNode(Constants.SentenceBreak);
IEnumerable <string> sequence = GetSequenceInternal(start, end);
return(string.Join(" ", sequence));
}
private IEnumerable <string> GetSequenceInternal(IMarkovNode <string> start, IMarkovNode <string> end)
{
for (int i = 0; i < MaxGenerateAttempts; i++)
{
List <string> s = GenerateSequenceInternalFrom(start, end).ToList();
if (s.Count < 3)
{
continue;
}
return(s);
}
return(Enumerable.Empty <string>());
}
private IEnumerable <string> GenerateSequenceInternalFrom(IMarkovNode <string> start, IMarkovNode <string> end)
{
IMarkovNode <string> current = start;
while (true)
{
// TODO: If the character is a quote, comma or semi-colon, the previous word should
// be used instead
string nextKey = current.GetRandomNext();
if (nextKey == end.Value)
{
break;
}
string word = nextKey.Split('|').First();
yield return(word);
current = GetNode(word);
}
}
public void Train(IEnumerable <string> sequence)
{
IEnumerator <string> enumerator = sequence.GetEnumerator();
enumerator.MoveNext();
string token = enumerator.Current;
IMarkovNode <string> currentNode = GetNode(token);
while (enumerator.MoveNext())
{
// Get the next node.
token = enumerator.Current;
IMarkovNode <string> node = GetNode(token);
// Point the current node to the next node
currentNode.AddNext(token);
// Update the current node
currentNode = node;
}
}
