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From "Rishabh Bajpai" <r_baj...@lycos.com>
Subject Re: Wildchar based search?? |
Date Sun, 02 Feb 2003 01:07:41 GMT


well, i saw that Micro* and micro* as a bug!
and no, i havent encountered any bugs so far; this is my first stint with lucene, and I am
aiming to get the basic stuff right, and therefore I thought that I would enquire....
there was this thing that I read on the FAQ site though:  that ? and * cant be the first characters
of the search string. and specific reasons for this limitations, and is there any simple work-around?
also, i rememebr readin somewhere that one had to build the index in some special way, but
since you say no; i will take that. i anyways dont rememebr where I read it, so no point asking
about something if I am myself not sure....
-rishabh


--

On Fri, 31 Jan 2003 23:19:27  
 Otis Gospodnetic wrote:
>> 1) to what extent are wildcards supported by lucenes? 
>
>You can use * and ? the way they usually are used.
>
>> 2) what are the known bugs and where can i find the relevant
>> documentation pertaining to them?
>
>Why do you think there are bugs in the first place?  Have you
>encountered any bugs?
>
>> 3) Is there some specific way in which the indexes are to be built,
>> for them to return wildchar based search results? I believe there is
>> but i am not sure where to look for that information.
>
>No, nothing special needs to be done.
>
>Otis
>
>> thanks 
>> Rishabh
>> 
>> 
>> --
>> 
>> On Fri, 31 Jan 2003 14:19:11  
>>  Otis Gospodnetic wrote:
>> >The thread more suited for lucene-user.
>> >
>> >I think that's just a bad work to be indexing....Microsoft...sheesh.
>> >Ok, it's not.  This is a known thing, even mentioned in the FAQ on
>> >jGuru.
>> >For how StandardFilter works it's best to look at the source, it's
>> >quite simple.  I think I might have mentioned that in the Lucene
>> >article on Onjava.com as well....not 100% sure any more :)
>> >
>> >Otis
>> >
>> >
>> >--- Lukas Zapletal <lzap@root.cz> wrote:
>> >> Hello all,
>> >> 
>> >> I have a small problem. Let`s have a word 'Microsoft' indexed in
>> >> Lucene. 
>> >> When I query Microsoft, it returns the document, but when I try
>> >> Micro* 
>> >> then nothing is found. After lowercasing the first letter to
>> micro* 
>> >> Lucene returns the document.
>> >> 
>> >> The same thing is with ?. When I use it, only lower-cased words
>> are
>> >> matched.
>> >> 
>> >> Is this a bug or Am I missing something?
>> >> 
>> >> ps - where can I find some information how Lucene parse the input
>> >> when 
>> >> using StandardFilter. I mean I don`t know what is ignored and what
>> >> not. 
>> >> For example acronyms (U.S.A), dates (2002-11-07 or 1. 1. 2003)
>> etc...
>> >> I 
>> >> cannot find it in the documentation. In the StandardFilter API
>> there
>> >> is 
>> >> onthing, it seems to be generated from JavaCC.
>> >> 
>> >> -- 
>> >> Lukas Zapletal      [lzap@root.cz]
>> >> http://www.tanecni-olomouc.cz/lzap
>> >> 
>> >> 
>> >> 
>> >> 
>> >>
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>> 
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