[Zope] Searching ZCatalog - sub-words?

[sean.upton@uniontrib.com]

Dieter,
Thanks for the suggestion; I think I will likely use the regexes in
UnTextIndex, but rewrite them using re, as Zope (as of 2.3.2) still uses
Python 1.5.2's regex (I haven't looked at the 2.4.0 code yet, but since this
is likely a radical change, I think I'll just implement a makeshift query
parser using re).

Sean

-----Original Message-----
From: Dieter Maurer [mailto:dieter@handshake.de]
Sent: Sunday, July 08, 2001 2:55 PM
To: sean.upton@uniontrib.com
Cc: zope@zope.org
Subject: Re: [Zope] Searching ZCatalog - sub-words?


sean.upton@uniontrib.com writes:
 > ....
 > I guess what I am wondering is if there is a way to search with sub-words
 > without explicit use of wildcards?  That is to say, provide a default
option
 > (perhaps something that could be disabled with a simple checkbox in the
 > quick search form) that automatically searches using sub-words, so that a
 > search for engineer was actually rewritten as a search for "engineer*"
 > instead.  I suppose that one could rewrite
 > REQUEST['nameOfIndexToBeSearched'] prior to <dtml-in Catalog> to achieve
 > those results, but I am wondering if there might be a simpler solution?
With Zope 2.4's pluggable indexes, you may have a special
index that can do sub-word searches automatically.

With Zope 2.3, I fear you need to rewrite the subquery.
I would steal the "UnTextIndex"'s parsing code to
find the words and add '*' as necessary.


Dieter

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