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From Chris Hostetter <hossman_luc...@fucit.org>
Subject Re: QueryParser exception on escaped backslash preceding ) character
Date Fri, 12 Aug 2005 18:02:15 GMT

can you provide a JUnit test that genertes the exception ... if it's
coming from the parse call it should only require a 1 line test.

: Date: Fri, 12 Aug 2005 10:29:41 -0700 (PDT)
: From: Matt Magoffin <apache.org@msqr.us>
: Reply-To: java-user@lucene.apache.org
: To: java-user@lucene.apache.org
: Subject: Re: QueryParser exception on escaped backslash preceding )
:     character
:
: 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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:



-Hoss


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