[ https://issues.apache.org/jira/browse/LUCENE-2587?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13142329#comment-13142329
]
Roberto Minelli commented on LUCENE-2587:
-----------------------------------------
Suppose I have a dummy Fragmenter that returns isNewFragment() = true on F and K. I have the
text "A b c d e. F g h i j! K l m n o. ". I search for "g" hence the Highlighter will pick
the middle fragment. The fragment it returns is ". F <b>g</b> h i j". I was wondering
if the correct fragment should be " F <b>g</b> h i j" or even "F <b>g</b>
h i j" without the starting whitespace. The starting "." is a bug and matches the issue LUCENE-2587.
I was wondering if, instead, the starting whitespace at the beginning of the fragment is correct
or not. And, in the end, if I understood correctly the issue LUCENE-2587, but I think so.
Thanks in advance to anyone who wants to answer. RM
> Highlighter picks wrong offset for fragment boundaries
> ------------------------------------------------------
>
> Key: LUCENE-2587
> URL: https://issues.apache.org/jira/browse/LUCENE-2587
> Project: Lucene - Java
> Issue Type: Bug
> Components: modules/highlighter
> Affects Versions: 3.0.2
> Environment: Java 6 + Lucene 3.0.2
> Reporter: Terje Eggestad
> Priority: Trivial
> Labels: newdev
>
> I have written a new Fragmenter since we need fragments for hitlines to be on sentence
boundaries and not cross paragraphs.
> When using it with org.apache.lucene.search.highlight.Highlighter, I get hitlines that
starts with ". ", "? ", "! "...
> Consider the text "A b c d e. F g h i j! K l m n o. "
> which become the tokenstream : (A) (b) (c) (d) (e) (F) (g) (h) (i) (j) (K) (l) (m) (n)
(o)
> If the fragmenter return isNewFragment() = true on F and K and Highlighter pick the
middle fragment, lets say we search on "g" the hitline becomes:
> ". F <B>g</B> h i j"
> The reason, it seems, is that the offset to the fragment boundaries found by taking the
endOffset of the last token in a fragment ,
> not the startOffset of the first.
> TJ
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org
|