Re: QueryParser error + solution

Tue, 04 Apr 2006 04:29:36 -0700 

Thanks Erik and Michael!
I copied some code from demo.SearchFiles.java, I do not have a more clearer tracing message. Now it works. 

But do you have a better way than this:

//escaping special chars for query parser
for (int i = 0; i < qr.length(); i ++)
{
if( (qr.charAt(i) == '+') ||(qr.charAt(i) == '-')
        ||(qr.charAt(i) == '&')||(qr.charAt(i) == '~')
        ||(qr.charAt(i) == '|')|| (qr.charAt(i) == '!')
        ||(qr.charAt(i) == '[')||(qr.charAt(i) == ']')
        ||(qr.charAt(i) == '(')||(qr.charAt(i) == ')')
        ||(qr.charAt(i) == '{')||(qr.charAt(i) == '}')
        ||(qr.charAt(i) == '^')||(qr.charAt(i) == '"')
        ||(qr.charAt(i) == '*')||(qr.charAt(i) == '?')
        ||(qr.charAt(i) == ':')||(qr.charAt(i) == '\\') )
        theQueries += "\\" + qr.charAt(i);
else
        theQueries += qr.charAt(i) ;
}



----Original Message Follows----
From: Erik Hatcher <[EMAIL PROTECTED]>
Reply-To: java-user@lucene.apache.org
To: java-user@lucene.apache.org
Subject: Re: QueryParser error
Date: Tue, 4 Apr 2006 07:01:41 -0400


Miki hasn't posted a complete stack trace, and if the NPE is coming  from 
QueryParser it would likely give stack trace information  pinpointing 
precisely where the issue is.  My hunch is some other  code is obfuscating 
the real issue.  A complete stack trace would be  much more helpful.


        Erik


On Apr 4, 2006, at 6:55 AM, Michael Barry wrote:


Exclamation point too ... check out the "Escaping Special Characters"

section in the QueryParser syntax guide (http://lucene.apache.org/ 
java/docs/queryparsersyntax.html)


miki sun wrote:

Still got error even without colon:


Error in parse query :The light of the body is the eye if  therefore thine 
eye be single, thy whole body shall be full of  light. But if thine eye be 
evil, thy whole body shall be full of  darkness. If therefore the light 
that is in thee be darkness, how  great is that darkness!


java.lang.NullPointerException



----Original Message Follows----
From: Michael Barry <[EMAIL PROTECTED]>
Reply-To: java-user@lucene.apache.org
To: java-user@lucene.apache.org
Subject: Re: QueryParser error
Date: Tue, 04 Apr 2006 06:44:02 -0400

You need to escape the colons.

miki sun wrote:

Hi there


Who can tell me why I got the the queryParser error for the  following 
query:



Error in parse query :The light of the body is the eye: if  therefore 
thine eye be single, thy whole body shall be full of  light. But if thine 
eye be evil, thy whole body shall be full of  darkness. If therefore the 
light that is in thee be darkness, how  great is that darkness!

java.lang.NullPointerException

Appart from [, ], (, ), whatelse should be exculded in the query?

Thanks

Miki




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