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https://issues.apache.org/jira/browse/SOLR-42?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13027629#comment-13027629
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Matthias Pigulla commented on SOLR-42:
--------------------------------------
I don't think it's a duplicate and the issue is still unresolved at least in
regard to [#comment-12625835] and the 1.4.1 release.
The input string "<??>xx yy xx" will have the start offsets for xx, yy and xx
at 3, 6 and 9 respectively and is off by one.
"<??><??>xx yy xx" will even have 6, 9 and 12, that is, every "<??>" (as a
special "degenerated" kind of XML PI) will shift the offset by one.
> Highlighting problems with HTMLStripWhitespaceTokenizerFactory
> --------------------------------------------------------------
>
> Key: SOLR-42
> URL: https://issues.apache.org/jira/browse/SOLR-42
> Project: Solr
> Issue Type: Bug
> Components: highlighter
> Reporter: Andrew May
> Assignee: Grant Ingersoll
> Priority: Minor
> Attachments: HTMLStripReaderTest.java,
> HtmlStripReaderTestXmlProcessing.patch,
> HtmlStripReaderTestXmlProcessing.patch, SOLR-42.patch, SOLR-42.patch,
> SOLR-42.patch, SOLR-42.patch, TokenPrinter.java, htmlStripReaderTest.html
>
>
> Indexing content that contains HTML markup, causes problems with highlighting
> if the HTMLStripWhitespaceTokenizerFactory is used (to prevent the tag names
> from being searchable).
> Example title field:
> <SUP>40</SUP>Ar/<SUP>39</SUP>Ar laserprobe dating of mylonitic fabrics in a
> polyorogenic terrane of NW Iberia
> Searching for title:fabrics with highlighting on, the highlighted version has
> the <em> tags in the wrong place - 22 characters to the left of where they
> should be (i.e. the sum of the lengths of the tags).
> Response from Yonik on the solr-user mailing-list:
> HTMLStripWhitespaceTokenizerFactory works in two phases...
> HTMLStripReader removes the HTML and passes the result to
> WhitespaceTokenizer... at that point, Tokens are generated, but the
> offsets will correspond to the text after HTML removal, not before.
> I did it this way so that HTMLStripReader could go before any
> tokenizer (like StandardTokenizer).
> Can you open a JIRA bug for this? The fix would be a special version
> of HTMLStripReader integrated with a WhitespaceTokenizer to keep
> offsets correct.
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