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From Grant Ingersoll <>
Subject Re: Custom Analyzer Help please
Date Mon, 26 Mar 2007 21:39:53 GMT
Ask on java-user, java-dev is for people developing Lucene, java-user  
is for questions of this nature.

Also, look at the javadocs for StandardAnalyzer, as it uses the  
StopTokenFilter.  You need to pass in your stopwords or use the  
default stop set.


On Mar 26, 2007, at 5:30 PM, TimF wrote:

> I would like to be able to get terms from my data that are a  
> combination of
> two existing analyzers.
> I would like this for both posting and searching of various fields.
> An example of the data might be as follows:
>    Hello XY&Z Corporation -
> I would like the following terms to come out of the analyzer:
>  [hello]  [xy&z]  [corporation] [abc@example] [com]  //this is the
> StandardAnalyzer output
> as well as
>   [xy] [z]  [abc] [example]
> Essentially, I want the StandardAnalyzer output, but then I want to  
> run the
> StopAnalyzer on the terms that come out of the StandardAnalyzer.  
> Basically I
> would like to be able to search against part of the "special" word  
> or the
> whole "special" word, where special word contains tokens for things  
> like
> email and part numbers, etc...
> I know the answer is that I have to create a custom analyzer that  
> combines
> the standard and stop analyzers, and I have tried... but I just cannot
> figure out how to do this.
> I have read through the LIA book and looked through the samples for  
> keyword
> and perfield analyzers, but they just dont do it.
> Anyone have any samples that do this kind of thing?
> Thanks,
> Tim
> -- 
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Grant Ingersoll
Center for Natural Language Processing

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