Xapian discuss - Dec 2011 - How to choose the proximity between search words

Hi,

I'd like to know how we can choose the distance between two words that we
search
in a text. I know there is an "op_near" operator but I don't know
how I can
specified that the number of words between the two specified words should not
exceed 10 or 20 or x words.

I'm really sorry for my terrible English, I hope I'm understandable!

On 7 Dec 2011, at 14:14, Nat wrote:
> I'd like to know how we can choose the distance between two words that
we search
> in a text. I know there is an "op_near" operator but I don't
know how I can
> specified that the number of words between the two specified words should
not
> exceed 10 or 20 or x words.

Hey, Nat. For OP_NEAR (and OP_PHRASE), the "parameter" to the
Xapian::Query constructor gives a "window" which will do what you
want. The getting started guide has a little on these
<http://getting-started-with-xapian.readthedocs.org/en/latest/concepts/search/queries.html#near-and-phrase>,
although probably not nearly enough. I don't think it has practical examples
of using them, but in the meantime the API docs have some details:

<http://xapian.org/docs/apidoc/html/classXapian_1_1Query.html#7e7b6b8ad0c915c2364578dfaaf6100b7a78c8353d5d06d3a38c1899ae762b21>

Hope this helps!

J

-- 
 James Aylett
 talktorex.co.uk - xapian.org - devfort.com

Hi!

So thanks to James and OP_NEAR operator, I can search for terms within 10 words
of each other. What I'd like is to choose the number of words : 10, 20,
50... Is
that possible?

Thanks in advance,

Nat