On Thu, 30 Mar 2000, J. op den Brouw wrote:
> I've read your story. When reading the code, I saw the + and -
> operator as well. Can you shed a light on the Altavista style
> searching. i.e how is 'word1 +word2 word3 -word4' handled
Yeah, right now these are transformed in to AND and NOT operators
respectively. I guess the point of my article is that the current parsing
code is a combination of parsing and searching and it's spread over a few
methods. This makes it hard to add new functinality.
For example, people have asked about AV's url: keyword, which essentially
adds in a restrict to the search. It's obvious that this *can* be
done--after all, we already have restricts, but it's not obvious where
you'd put it in the code!
-Geoff
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