Hi ba3,
Did you read the Lucid Imagination article I linked to?:
http://www.lucidimagination.com/blog/2009/07/18/the-spanquery/
It has examples, including specifying the term indicating the end of the span.
If the article doesn't do it for you, I need more information to be able to
help. Can you give an example of what you want to do?
Thanks,
Steve
> -----Original Message-----
> From: ba3 [mailto:sbadhrin...@gmail.com]
> Sent: Tuesday, July 28, 2009 10:39 PM
> To: java-user@lucene.apache.org
> Subject: RE: Multiline Regex with Lucene
>
>
> Hi Steve,
>
> In case of span queries, the span first query can specify the start of
> the
> span, is it possible to specify the term [not the position] indicating
> the
> end of the span ?
>
> -- Regards
> Ba3
>
>
> Steven A Rowe wrote:
> >
> > Hi ba3,
> >
> > Check out the list of "Direct Known Subclasses" from the SpanQuery
> > javadocs to see what's available:
> >
> >
> http://lucene.apache.org/java/2_4_1/api/org/apache/lucene/search/spans/
> SpanQuery.html
> >
> > SpanRegexQuery may be what you're looking for:
> >
> >
> http://lucene.apache.org/java/2_4_1/api/org/apache/lucene/search/regex/
> SpanRegexQuery.html
> >
> >
> > Steve
> >
> >> -----Original Message-----
> >> From: ba3 [mailto:sbadhrin...@gmail.com]
> >> Sent: Tuesday, July 28, 2009 12:53 PM
> >> To: java-user@lucene.apache.org
> >> Subject: Re: Multiline Regex with Lucene
> >>
> >>
> >> Hi,
> >>
> >> Thanks for the pointers. I will try the span queries.
> >> But can span query support regexp as a term ?
> >>
> >> Also for more details in the problem :
> >> The problem is like this:
> >> find a search string inside a block of statements.
> >> The block starts with a string and ends with a character.
> >>
> >> -- Regards
> >> Ba3
> >>
> >>
> >>
> >> Erick Erickson wrote:
> >> >
> >> > I doubt you're thinking in terms of tokens. Your inputstream is
> broken
> >> up
> >> > into tokens (think of them as words,
> >> > depending upon the analyzer) and regex searchers are
> >> > confined to those *tokens*. So the concept of a multi-line
> >> > regex in a search is kind of ...odd...
> >> >
> >> > You could possibly index your input as UN_TOKENIZED, but
> >> > I really have no clue what Lucene would do with that. I think
> >> > you're off in uncharted territory here.
> >> >
> >> > Perhaps a better thing would be for you to explain *why* you
> >> > want to do this and perhaps folks can come up with some
> >> > suggestions, I suspect this may be an XY problem, see
> >> > http://www.perlmonks.org/index.pl?node_id=542341
> >> >
> >> > Best
> >> > Erick
> >> >
> >> > On Sun, Jul 26, 2009 at 9:52 AM, ba3 <sbadhrin...@gmail.com>
> wrote:
> >> >
> >> >>
> >> >> I was trying to do a regex search with the lucene and
> >> >> JavaUtilRegexCapabilities.
> >> >> The code used is :
> >> >> RegexQuery query = new RegexQuery(new
> >> >> Term("contents","(?m)hello.*(\r[^#]*)This is to be
> >> >> searched.*(\r[^#]*)#"));
> >> >> query.setRegexImplementation(new JavaUtilRegexCapabilities());
> >> >>
> >> >> I verified the regex in : http://www.gskinner.com/RegExr/ [with
> the
> >> >> multi
> >> >> line checked]
> >> >> In lucene though there are no hits. Can you please point me in
> the
> >> right
> >> >> direction
> >> >>
> >> >> -- Rgds
> >> >> Ba3
> >> >>
> >> >> Regex :
> >> >> hello.*(\r[^#]*)This is to be searched.*(\r[^#]*)#
> >> >>
> >> >> Content :
> >> >> hello world
> >> >> This is to be searched
> >> >> #
> >> >> Test line should not be selected
> >> >> hello
> >> >> This should not work
> >> >> some other lines
> >> >> #
> >> >> Not to be selected
> >> >> hello world
> >> >> Some lines
> >> >> This is to be searched
> >> >> Some lines
> >> >> #
> >> >> hello earth
> >> >> some lines
> >> >> #
> >> >> --
> >> >> View this message in context:
> >> >>
> >> http://www.nabble.com/Multiline-Regex-with-Lucene-
> tp24667109p24667109.html
> >> >> Sent from the Lucene - Java Users mailing list archive at
> Nabble.com.
> >> >>
> >> >>
> >> >> -----------------------------------------------------------------
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> >> >>
> >> >>
> >> >
> >> >
> >>
> >> --
> >> View this message in context: http://www.nabble.com/Multiline-Regex-
> with-
> >> Lucene-tp24667109p24703547.html
> >> Sent from the Lucene - Java Users mailing list archive at
> Nabble.com.
> >>
> >>
> >> --------------------------------------------------------------------
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>
> --
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> with-Lucene-tp24667109p24711445.html
> Sent from the Lucene - Java Users mailing list archive at Nabble.com.
>
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