Hi, I'm trying to use Lucene in my Android project. To start with I've
created a small demo app. It works with .txt files but I need to work with
.pdf. So analyzing my code I understand that it will have some issues with
.pdfs due to memory management. However the question I want to ask here is
not
I think you're asking for what Lucene calls "offsets", i.e. the
character indices into the original indexed text, telling you where
each hit occurred.
All highlighters use offsets to find the matches in the original indexed text.
One option, which both Highlighter and FastVectorHighlighter use, i
Like I said I will work with pdf files. So I will draw highlights by myself
over the rendered pdf file (as far as I know lucene can't work with pdf by
default).
Yes, offsets is what I'm looking for.
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OK.
But, the offsets refer to the plain text after you filtered the PDF
document, not e.g. to offset in the original PDF content.
Mike McCandless
http://blog.mikemccandless.com
On Mon, Aug 12, 2013 at 9:58 AM, Lingviston
wrote:
> Like I said I will work with pdf files. So I will draw highlig
I think that's OK for me. I just need to know the right way to get them.
Notice that queries must support boolean operators, *, ? and qoutes.
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Sent from the Luce
If you use PostingsHighlighter, then Passage.getMatchStarts/Ends gives
you the offsets of each match. You'd need a custom PassageFormatter
that takes these ints and saves them somewhere; or possibly the patch
on LUCENE-4906 (allowing you to return custom objects, not just
String) from your highlig
I'm currently using this snippet (with older Highlighter):
HitPositionCollector collector = new HitPositionCollector();
highlighter = new Highlighter(collector,
scorer);
highlighter.setTextFragmenter(new
SimpleSpanFragmenter(scorer,
On Aug 13, 2013, at 12:55 PM, Michael McCandless wrote:
> I'm less familiar with the older highlighters but likely it's possible
> to get the absolute offsets from them as well.
Using vector highlighter I've achieved that by extending and cloning the code
of ScoreOrderFragmentsBuilder#makeFrag
Iterating over term matches is a recent need for me, too (experimenting
with ranking matches/passages independently, across documents). I'm using
the new PostingsHighlighter and giving it my own PassageFormatter. This
does no formatting, but does store away the offsets from each Passage.
One big p
Hi Jon,
Can you open an issue for this? We can explore how/whether to get the
current docID to the formatter...
Mike McCandless
http://blog.mikemccandless.com
On Mon, Aug 19, 2013 at 1:07 PM, Jon Stewart
wrote:
> Iterating over term matches is a recent need for me, too (experimenting
> with
Done. https://issues.apache.org/jira/browse/LUCENE-5181
Jon
On Mon, Aug 19, 2013 at 1:26 PM, Michael McCandless <
luc...@mikemccandless.com> wrote:
> Hi Jon,
>
> Can you open an issue for this? We can explore how/whether to get the
> current docID to the formatter...
>
> Mike McCandless
>
>
Lingviston,
Can you tell me what IDE and process you are using to build your APK file?
I am having issues with loading the Lucene42Codec and I see the code you
are using is just like mine. However, when I try to run the app, I get an
exception stating that it can't find the codec.
I am using Int
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