Highlight fragment does not extend to maxDocCharsToAnalyze
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Key: LUCENE-1321
URL: https://issues.apache.org/jira/browse/LUCENE-1321
Project: Lucene - Java
Issue Type: Bug
Components: contrib/highlighter
Affects Versions: 2.4
Reporter: Lars Kotthoff
Priority: Minor
The current highlighter code checks whether the total length of the text to
highlight is strictly smaller than maxDocCharsToAnalyze before adding any text
remaining after the last token to the fragment. This means that if
maxDocCharsToAnalyse is set to exactly the length of the text and the last
token of the text is the term to highlight and is followed by non-token text,
this non-token text will not be highlighted.
For example, consider the phrase "this is a text with searchterm in it". "In"
and "it" are not tokenized because they're stopwords. Setting
maxDocCharsToAnalyze to 36 (the length of the sentence) and searching for
"searchterm" gives a fragment ending in "searchterm". The expected behaviour is
to have "in it" at the end of the fragment, since maxDocCharsToAnalyse
explicitely states that the whole phrase should be considered.
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