[Zope-dev] Wildcards in TextIndex query. Do they work?

[Chris McDonough]

Thanks for tracking this down... If you're so inclined, please put this
in the Collector (with a description of the problem, as well as a way to
reproduce it, the patch alone isn't nearly as helpful) so it doesn't get
dropped on the floor.  I doubt very much that it's fixed in CVS.

- C


Erik Enge wrote:
> 
> On Wed, 30 May 2001, Erik Enge wrote:
> 
> > I'm going bug hunting...
> 
> I'm back :)
> 
> I think I found the bug.  In lib/python/SearchIndex/GlobbingLexicon.py in
> the query_hook() method.  It seems to say that: "if I can't find a '*' or
> a '?' in the word, then go to else-clause", where the else-clause says
> sodd off.
> 
> Since it iterates over the query, 'word' is actually a list if you use
> parens in your query, and you won't find any wildcards there.  I think.
> 
> Add a dash of recursiveness, and it seems to be solved (for me):
> 
>     def erik_hook(self, q):
>         "doc string"
>         words = []
>         for w in q:
>             if ( (self.multi_wc in w) or
>                  (self.single_wc in w) ):
>                 wids = self.get(w)
>                 for wid in wids:
>                     if words:
>                         words.append(Or)
>                     words.append(wid)
>             else:
>                 words.append(self.erik_hook(w))
>         return words or ['']
> 
>     def query_hook(self, q):
>         """expand wildcards"""
>         words = []
>         for w in q:
>             if ( (self.multi_wc in w) or
>                  (self.single_wc in w) ):
>                 wids = self.get(w)
>                 for wid in wids:
>                     if words:
>                         words.append(Or)
>                     words.append(wid)
>             else:
>                 words.append(self.erik_hook(w))
> 
> Not really tested, but it seems to work.  This might have been resolved in
> CVS, I don't know, should I post it as a bug?
> 
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