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https://issues.apache.org/jira/browse/TIKA-272?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13122625#comment-13122625
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Jukka Zitting commented on TIKA-272:
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See PDFBOX-577 for some related work in PDFBox.
> Expose characters offsets information while parsing text-based inputs.
> ----------------------------------------------------------------------
>
> Key: TIKA-272
> URL: https://issues.apache.org/jira/browse/TIKA-272
> Project: Tika
> Issue Type: New Feature
> Components: parser
> Affects Versions: 0.4
> Reporter: David Causse
> Priority: Minor
>
> It would be interesting to access actual characters offset information when
> parsing text-based files (I don't know if it's interesting/usable/doable for
> binary formats...).
> If I use tika for parsing HTML and inject parsed strings into lucene, I'm not
> able to tell to the lucene analyzer where is the actual character in the
> original input.
> If tika expose this information It will permit to use unmodified lucene
> analyzers behind tika and implement for example pretty highlighting in search
> result (see google cache view).
> With new Lucene Attribute API it could be fairly easy to provide a sort of
> TikaOffsetRectifierTokenFilter in lucene contrib and use a stack like tika ->
> unmodified lucene analyzer -> tika offset correction.
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