public override Token Next()
{
if (i == TOKENS.Length)
return null;
Token t = new Token(TOKENS[i], i, i);
t.SetPositionIncrement(INCREMENTS[i]);
i++;
return t;
}
public override Token Next()
{
if (i == TOKENS.Length)
{
return(null);
}
Token t = new Token(TOKENS[i], i, i);
t.SetPositionIncrement(INCREMENTS[i]);
i++;
return(t);
}
/*
* (non-Javadoc)
*
* @see Lucene.Net.Analysis.TokenStream#next()
*/
public override Token Next(/* in */ Token reusableToken)
{
System.Diagnostics.Debug.Assert(reusableToken != null);
int posIncr = 1;
while (true)
{
int tokenType = scanner.GetNextToken();
if (tokenType == StandardTokenizerImpl.YYEOF)
{
return(null);
}
if (scanner.Yylength() <= maxTokenLength)
{
reusableToken.Clear();
reusableToken.SetPositionIncrement(posIncr);
scanner.GetText(reusableToken);
int start = scanner.Yychar();
reusableToken.SetStartOffset(start);
reusableToken.SetEndOffset(start + reusableToken.TermLength());
// This 'if' should be removed in the next release. For now, it converts
// invalid acronyms to HOST. When removed, only the 'else' part should
// remain.
if (tokenType == StandardTokenizerImpl.ACRONYM_DEP)
{
if (replaceInvalidAcronym)
{
reusableToken.SetType(StandardTokenizerImpl.TOKEN_TYPES[StandardTokenizerImpl.HOST]);
reusableToken.SetTermLength(reusableToken.TermLength() - 1); // remove extra '.'
}
else
{
reusableToken.SetType(StandardTokenizerImpl.TOKEN_TYPES[StandardTokenizerImpl.ACRONYM]);
}
}
else
{
reusableToken.SetType(StandardTokenizerImpl.TOKEN_TYPES[tokenType]);
}
return(reusableToken);
}
// When we skip a too-long term, we still increment the
// position increment
else
{
posIncr++;
}
}
}
/// <summary>Returns the next input Token, after being stemmed </summary>
public override Token Next()
{
Token token = input.Next();
if (token == null)
return null;
stemmer.SetCurrent(token.TermText());
try
{
stemMethod();
}
catch (System.Exception e)
{
throw new System.SystemException(e.ToString());
}
Token newToken = new Token(stemmer.GetCurrent(), token.StartOffset(), token.EndOffset(), token.Type());
newToken.SetPositionIncrement(token.GetPositionIncrement());
return newToken;
}
/// <summary>Returns the next input Token, after being stemmed </summary>
public override Token Next()
{
Token token = input.Next();
if (token == null)
{
return(null);
}
stemmer.SetCurrent(token.TermText());
try
{
stemMethod.Invoke(stemmer, (System.Object[])EMPTY_ARGS);
}
catch (System.Exception e)
{
throw new System.SystemException(e.ToString());
}
Token newToken = new Token(stemmer.GetCurrent(), token.StartOffset(), token.EndOffset(), token.Type());
newToken.SetPositionIncrement(token.GetPositionIncrement());
return(newToken);
}
private void InitBlock(HighlighterTest enclosingInstance)
{
this.enclosingInstance = enclosingInstance;
lst = new System.Collections.ArrayList();
Token t;
t = new Token("hi", 0, 2);
lst.Add(t);
t = new Token("hispeed", 0, 8);
lst.Add(t);
t = new Token("speed", 3, 8);
t.SetPositionIncrement(0);
lst.Add(t);
t = new Token("10", 8, 10);
lst.Add(t);
t = new Token("foo", 11, 14);
lst.Add(t);
iter = lst.GetEnumerator();
}
public override Token Next()
{
if (currentRealToken == null)
{
Token nextRealToken = realStream.Next();
if (nextRealToken == null)
{
return null;
}
System.String expansions = (System.String) synonyms[nextRealToken.TermText()];
if (expansions == null)
{
return nextRealToken;
}
st = new Tokenizer(expansions, ",");
if (st.HasMoreTokens())
{
currentRealToken = nextRealToken;
}
return currentRealToken;
}
else
{
System.String nextExpandedValue = st.NextToken();
Token expandedToken = new Token(nextExpandedValue, currentRealToken.StartOffset(), currentRealToken.EndOffset());
expandedToken.SetPositionIncrement(0);
if (!st.HasMoreTokens())
{
currentRealToken = null;
st = null;
}
return expandedToken;
}
}
/*
* (non-Javadoc)
*
* @see Lucene.Net.Analysis.TokenStream#next()
*/
public override Token Next(Token result)
{
int posIncr = 1;
while (true)
{
int tokenType = scanner.GetNextToken();
if (tokenType == StandardTokenizerImpl.YYEOF)
{
return null;
}
if (scanner.Yylength() <= maxTokenLength)
{
result.Clear();
result.SetPositionIncrement(posIncr);
scanner.GetText(result);
int start = scanner.Yychar();
result.SetStartOffset(start);
result.SetEndOffset(start + result.TermLength());
// This 'if' should be removed in the next release. For now, it converts
// invalid acronyms to HOST. When removed, only the 'else' part should
// remain.
if (tokenType == StandardTokenizerImpl.ACRONYM_DEP)
{
if (replaceInvalidAcronym)
{
result.SetType(StandardTokenizerImpl.TOKEN_TYPES[StandardTokenizerImpl.HOST]);
result.SetTermLength(result.TermLength() - 1); // remove extra '.'
}
else
{
result.SetType(StandardTokenizerImpl.TOKEN_TYPES[StandardTokenizerImpl.ACRONYM]);
}
}
else
{
result.SetType(StandardTokenizerImpl.TOKEN_TYPES[tokenType]);
}
return result;
}
// When we skip a too-long term, we still increment the
// position increment
else
posIncr++;
}
}
public void TestNegativePositions()
{
SinkTokenizer tokens = new SinkTokenizer();
Token t = new Token();
t.SetTermText("a");
t.SetPositionIncrement(0);
tokens.Add(t);
t.SetTermText("b");
t.SetPositionIncrement(1);
tokens.Add(t);
t.SetTermText("c");
tokens.Add(t);
MockRAMDirectory dir = new MockRAMDirectory();
IndexWriter w = new IndexWriter(dir, false, new WhitespaceAnalyzer(), true);
Document doc = new Document();
doc.Add(new Field("field", tokens));
w.AddDocument(doc);
w.Close();
IndexSearcher s = new IndexSearcher(dir);
PhraseQuery pq = new PhraseQuery();
pq.Add(new Term("field", "a"));
pq.Add(new Term("field", "b"));
pq.Add(new Term("field", "c"));
Hits hits = s.Search(pq);
Assert.AreEqual(1, hits.Length());
Query q = new SpanTermQuery(new Term("field", "a"));
hits = s.Search(q);
Assert.AreEqual(1, hits.Length());
TermPositions tps = s.GetIndexReader().TermPositions(new Term("field", "a"));
Assert.IsTrue(tps.Next());
Assert.AreEqual(1, tps.Freq());
Assert.AreEqual(-1, tps.NextPosition());
Assert.IsTrue(_TestUtil.CheckIndex(dir));
s.Close();
dir.Close();
}
public override Token Next()
{
if (tokenUpto >= Enclosing_Instance.tokens.Length)
return null;
else
{
Token t = new Token();
TestToken testToken = Enclosing_Instance.tokens[tokenUpto++];
t.SetTermText(testToken.text);
if (tokenUpto > 1)
t.SetPositionIncrement(testToken.pos - Enclosing_Instance.tokens[tokenUpto - 2].pos);
else
t.SetPositionIncrement(testToken.pos + 1);
t.SetStartOffset(testToken.startOffset);
t.SetEndOffset(testToken.endOffset);
return t;
}
}