Ferret talk - Sep 2006 - Per field analyzer

Is there a way to add per-field analyzer? I can''t seem to find a way to
do that.

Thanks

-- 
Kent
---
http://www.datanoise.com

On 9/10/06, Kent Sibilev <ksruby at gmail.com>
wrote:
> Is there a way to add per-field analyzer? I can''t seem to find a
way to do that.
>
> Thanks
>
> --
> Kent
Hi Kent,

I''m not sure if you mean add *to* a PerFieldAnalyzer or add a
PerFieldAnalyzer to and Index. Here is how you do both;

    include Ferret::Analysis
    pfa = PerFieldAnalyzer.new(StandardAnalyzer.new())
    pfa[''white''] = WhiteSpaceAnalyzer.new(false)
    pfa[''white_l''] = WhiteSpaceAnalyzer.new(true)
    pfa[''letter''] = LetterAnalyzer.new(false)
    pfa.add_field(''letter'', LetterAnalyzer.new(true))
    pfa.add_field(''letter_u'', LetterAnalyzer.new(false))

    index = Ferret::Index::Index.new(:analyzer => pfa)

I hope that''s what you were asking.

Dave

On 9/9/06, David Balmain <dbalmain.ml at gmail.com>
wrote:
> On 9/10/06, Kent Sibilev <ksruby at gmail.com> wrote:
> > Is there a way to add per-field analyzer? I can''t seem to
find a way to do that.
> >
> > Thanks
> >
> > --
> > Kent
>
> Hi Kent,
>
> I''m not sure if you mean add *to* a PerFieldAnalyzer or add a
> PerFieldAnalyzer to and Index. Here is how you do both;
>
>     include Ferret::Analysis
>     pfa = PerFieldAnalyzer.new(StandardAnalyzer.new())
>     pfa[''white''] = WhiteSpaceAnalyzer.new(false)
>     pfa[''white_l''] = WhiteSpaceAnalyzer.new(true)
>     pfa[''letter''] = LetterAnalyzer.new(false)
>     pfa.add_field(''letter'', LetterAnalyzer.new(true))
>     pfa.add_field(''letter_u'', LetterAnalyzer.new(false))
>
>     index = Ferret::Index::Index.new(:analyzer => pfa)
>
> I hope that''s what you were asking.
>
Perfect. That''s exactly what I''ve been looking for. Now I see
it in
test cases, but rdoc lacks any the information about analyzers.

-- 
Kent
---
http://www.datanoise.com

On 9/10/06, Kent Sibilev <ksruby at gmail.com>
wrote:
> On 9/9/06, David Balmain <dbalmain.ml at gmail.com> wrote:
> > On 9/10/06, Kent Sibilev <ksruby at gmail.com> wrote:
> > > Is there a way to add per-field analyzer? I can''t seem
to find a way to do that.
> > >
> > > Thanks
> > >
> > > --
> > > Kent
> >
> > Hi Kent,
> >
> > I''m not sure if you mean add *to* a PerFieldAnalyzer or add a
> > PerFieldAnalyzer to and Index. Here is how you do both;
> >
> >     include Ferret::Analysis
> >     pfa = PerFieldAnalyzer.new(StandardAnalyzer.new())
> >     pfa[''white''] = WhiteSpaceAnalyzer.new(false)
> >     pfa[''white_l''] = WhiteSpaceAnalyzer.new(true)
> >     pfa[''letter''] = LetterAnalyzer.new(false)
> >     pfa.add_field(''letter'',
LetterAnalyzer.new(true))
> >     pfa.add_field(''letter_u'',
LetterAnalyzer.new(false))
> >
> >     index = Ferret::Index::Index.new(:analyzer => pfa)
> >
> > I hope that''s what you were asking.
> >
>
> Perfect. That''s exactly what I''ve been looking for. Now I
see it in
> test cases, but rdoc lacks any the information about analyzers.
Whoops. I wrote my own frt_define_class_under to replace
rb_define_class_under and rdoc was no longer picking up the
documentation. It''s fixed now and will be out in the next release. In
the meantime you can see the full documentation here;

    http://ferret.davebalmain.com/api/

Cheers,
Dave