Xapian discuss - Feb 2009 - wildcard support (left truncation)

Dose Xapian support wildcards (left truncation)?

E.g. *ildcard.doc or *.doc or Wild*.doc

I read a post from Olly in 2005 that said it wasn't supported yet, I was
wonder if there had been any progress or easy work around since.

I mainly need when users want to search by the filename extension.

Thanks,

Frank

On Wed, Feb 04, 2009 at 02:29:36PM +1030, Frank John Bruzzaniti wrote:
> Dose Xapian support wildcards (left truncation)?
> 
> E.g. *ildcard.doc or *.doc or Wild*.doc
> 
> I read a post from Olly in 2005 that said it wasn't supported yet, I
was
> wonder if there had been any progress or easy work around since.
I don't believe so.
> I mainly need when users want to search by the filename extension.
Why not index that with a separate prefix?

J

-- 
  James Aylett

  talktorex.co.uk - xapian.org - uncertaintydivision.org

Please keep messages on-list to ensure everyone can help and benefits.

On Wed, Feb 04, 2009 at 09:21:51PM +1030, Frank J Bruzzaniti wrote:
> >>I mainly need when users want to search by the filename extension.
> >Why not index that with a separate prefix?
>
> Sorry I didn't understand what you meant by "index with a separate
prefix"
I assume you're using omindex and omega. Have a look at
<http://xapian.org/docs/omega/termprefixes.html>, which explains how
Omega manages terms under the hood.

You'd need modifications to omindex to get this to work;
alternatively, you could use scriptindex
<http://xapian.org/docs/omega/scriptindex.html>.

J

-- 
  James Aylett

  talktorex.co.uk - xapian.org - uncertaintydivision.org