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From "Matt Magoffin" <apache....@msqr.us>
Subject Re: QueryParser exception on escaped backslash preceding ) character
Date Fri, 12 Aug 2005 17:29:41 GMT
The strings are not coming from Java literals, actually, so I didn't think
that was the problem.

Any other thoughts?

-- m@

> I think you are encountering a "double escape" problem in java literals.
> QP is seeing a backslash in front of the ) and waiting for you to finish
> the paren grouping.
>
> how are you passing that string to the QP, is it embedded in your java
> code?  if so the java compiler is interpreting your \\ and your java  app
> is never seeing it.
>
> : Date: Fri, 12 Aug 2005 07:30:19 -0700 (PDT)
> : From: Matt Magoffin <apache.org@msqr.us>
> : Reply-To: java-user@lucene.apache.org
> : To: java-user@lucene.apache.org
> : Subject: QueryParser exception on escaped backslash preceding )
> character
> :
> : When I try to parse a query with an escaped backslash character like
> this
> : (using Lucene 1.4.3):
> :
> : -id:20677 +(addr:Street143 AND zip:\\)
> :
> : the QueryParser thows an Exception:
> :
> : Encountered "<EOF>" at line 1, column 289.
> : 			Was expecting one of: <AND> ... <OR> ...
> : 			<NOT> ... "+" ... "-" ... "(" ... ")" ... "^" ...
> : 			<QUOTED> ... <TERM> ...
> : 			<PREFIXTERM> ... <WILDTERM> ... "[" ...
> : 			"{" ... <NUMBER> ...
> :
> : However, if I insert a space between the backslash and the parenthesis:
> :
> : -id:20677 +(addr:Street143 AND zip:\\ )
> :
> : it works. Is this expected behavior or perhaps a bug in the QueryParser?
> :
> : -- m@
> :
> : ---------------------------------------------------------------------
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>
>
>
> -Hoss
>
>
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>


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