sarowe at syr
Jul 21, 2008, 1:02 PM
Post #3 of 4
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RE: lucene query parser syntax "escape ="
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Hi cw,
Which analyzer are you using? For queries like 'location=-1' you might try WhitespaceAnalyzer, since it won't throw out the '=', like StandardAnalyzer will.
See <http://lucene.apache.org/java/docs/queryparsersyntax.html> for info about QueryParser syntax and metacharacter escaping.
For escaping QueryParser's metacharacters (like '-'), you could use the static QueryParser.escape() method: <http://lucene.apache.org/java/2_3_2/api/org/apache/lucene/queryParser/QueryParser.html#escape(java.lang.String)>.
Steve
On 07/20/2008 at 11:00 PM, cw wrote:
> The "-" or prohibit operator excludes documents that contain
> the term after the "-" symbol.
>
> so how to search for "-"
>
> --- On Sun, 7/20/08, cw <second_comet[at]yahoo.com> wrote:
> From: cw <second_comet[at]yahoo.com>
> Subject: lucene query parser syntax "escape ="
> To: general[at]lucene.apache.org
> Date: Sunday, July 20, 2008, 12:59 PM
>
> i have a field that indexed called
> <summary>. i can see the field and it's data using "luke"
> .
>
> the content is like below:::
>
> sadf
> <body />
> <body />
> #
> #Sun Jul 20 22:34:07 SGT 2008
> photographerContact=
> tasterContact=
> foodType=-1
> profileType=-1
> payment=-1
> location=-1
>
>
>
> How to use query parser to search for this summary field content for
> "location=-1" . from what i know i cannot use " =" for
> query. how to escape "=" ?
>
> i tried something like this 'location=-1' but failed
>
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