> On Tue, Oct 31, 2006 at 03:55:07PM +0900, Jeffrey Gelens wrote:
> > I just started using Ferret and I successfully indexed some
> documents. I
> > can search this index using the following code:
> >
> > index = Index::Index.new(:path => path)
> > index.search_each("something") do |doc, score|
> > print "##{doc} #{index[doc]['url']} - #{score}"
> > print "\n"
> > end
> >
> > However, when I try to use Search::Searcher and QueryParser I don't
> get
> > any results. I tried the following code:
> >
> > queryparser = QueryParser.new()
> > searcher = Searcher.new(path)
> > queryparser.fields = searcher.reader.fields
> > searcher.search(queryparser.parse("something"))
> >
> > I index all my documents as follows:
> >
> > index = Index::Index.new(:path => path, :analyzer =>
> > Analysis::RegExpAnalyzer.new(/./, false))
> > index << { :title => title, :url => link, :body => page }
> >
> > What am I doing wrong?
>
> Basically you should use the same analyzer to analyze queries as you
> used to analyze your content. So constructing your queryparser like
> this:
> qp = QueryParser.new(:analyzer => Analysis::RegExpAnalyzer.new(/./,
> false))
> your searches should work.
>
> However, your regexp for the analyzer looks strange - /./ matches
> every
> single character, including whitespace. So each field's value would be
> indexed as 1-character long terms, which probably is not what you
> want.
>
> However I don't know why searching through the Index class worked,
> I'd
> suspect it not to work, too.
>
>
> Jens
Now I constructed the queryparser using the same analyzer and it seems
that was indeed the problem. Thanks.
The reason why I'm using the regexp /./ is that I'm indexing Japanese
sites. I found a solution on this mailinglist to use a RegExpAnalyzer
using this regexp for asian characters.
It is working fine. Am I using it correctly or should I index Japanese
characters ?
--
Jeffrey Gelens
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