custom search

I am using Drupal 6 and I'm looking to answer two questions. First, the scenario:

I have a project where there are a handful of search terms that we want to "take control of" and insert logic to either prioritize results or redirect users off of the search page and onto a specific page. For most other searches, we just let the Drupal search process continue as normal.

I have two separate sites that are on D5, with both using the same database (not the same tables, but the same database), and I need to combine the search results from both site indexes into the site search on each site.
Eventually, both sites will be merged into a D6 site, but for now they have to remain separate.
Anyone have any thoughts on how to approach this?

Hi

I want to implement the lucence search module into my Drupal site.

However, I have a custom module that I developed myself which pulls content from an xml file and displays it using xslt.

I was wondering if it is possible to use the Lucence search module to offer search capabilities for my xml content.

The xml content is stored in files on the server and not in a database.

Is it possible to search xml content with the Lucence module or its API?

I am also interested in any other solutions for searching xml content.

Thank you in advance for your time.

Hey,

I am a pre-final year student in IIT Madras, Chennai, India. I have been working with Drupal for the last year or so. I have created and am the administrator for my Department website (www.biotech.iitm.ac.in) and the Industrial Consultancy site for IITM (www.icandsr.iitm.ac.in).

I propose to overhaul the search feature of Drupal 6 so that we can have searches for incorrectly spelt terms. The Leucene DidYouMean module does this, but I plan to make make additions in the core search module.

EDIT: I realized this, probably, isn't the way g.d.o works and moved my question to the forum (http://drupal.org/node/698770).

Please tell anything you know about how to create custom search.