[ 
http://issues.apache.org/jira/browse/LUCENE-573?page=comments#action_12429297 ] 
            
Yonik Seeley commented on LUCENE-573:
-------------------------------------

> it seems like query parser should be unescaping it automatically for you

That's my take.  \" should return the user "
To enable representation of a real backslash followed by a quote, or a 
backslash at the end of a line, backslashes also need escaping (with another 
backslash... same as C, Java, etc).

Now the question is if \+ should be returned as + or \+
If we were starting from scratch, I'd say remove the backslash (return +) since 
that's most consistent with escaping mechanisms in other languages, and it does 
the right thing if a user escapes something they don't need to.  So does anyone 
currently search for backslash in a phrase query???

> Escaped quotes inside a phrase cause a ParseException
> -----------------------------------------------------
>
>                 Key: LUCENE-573
>                 URL: http://issues.apache.org/jira/browse/LUCENE-573
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: QueryParser
>    Affects Versions: 1.9
>         Environment: Debian Sarge, Sun JDK 1.4.2
>            Reporter: Tomislav Gountchev
>            Priority: Minor
>         Attachments: escaped_quotes_inside_phrases.patch
>
>
> QueryParser cannot handle escaped quotes when inside a phrase. Escaped quotes 
> not in a phrase are not a problem. This can be added to 
> TestQueryParser.testEscaped() to demonstrate the issue - the second assert 
> throws an exception:
> assertQueryEquals("a \\\"b c\\\" d", a, "a \"b c\" d");
> assertQueryEquals("\"a \\\"b c\\\" d\"", a, "\"a \"b c\" d\"");
> See also this thread:
> http://www.nabble.com/ParseException-with-escaped-quotes-in-a-phrase-t1647115.html

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