/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
namespace Lucene.Net.Highlight
{
/// Low-level class used to record information about a section of a document
/// with a score.
///
/// MAHarwood
///
///
///
public class TextFragment
{
internal System.Text.StringBuilder markedUpText;
internal int fragNum;
internal int textStartPos;
internal int textEndPos;
internal float score;
public TextFragment(System.Text.StringBuilder markedUpText, int textStartPos, int fragNum)
{
this.markedUpText = markedUpText;
this.textStartPos = textStartPos;
this.fragNum = fragNum;
}
internal virtual void SetScore(float score)
{
this.score = score;
}
public virtual float GetScore()
{
return score;
}
/// Fragment to be merged into this one
///
public virtual void Merge(TextFragment frag2)
{
textEndPos = frag2.textEndPos;
score = System.Math.Max(score, frag2.score);
}
///
///
/// true if this fragment follows the one passed
///
public virtual bool Follows(TextFragment fragment)
{
return textStartPos == fragment.textEndPos;
}
/// the fragment sequence number
///
public virtual int GetFragNum()
{
return fragNum;
}
/* Returns the marked-up text for this text fragment
*/
public override System.String ToString()
{
return markedUpText.ToString(textStartPos, textEndPos - textStartPos);
}
}
}