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Date: Wed, 6 Dec 2006 20:12:23 -0800 (PST)
From: "Yonik Seeley (JIRA)" <jira@apache.org>
To: java-dev@lucene.apache.org
Subject: [jira] Commented: (LUCENE-682) QueryParser with Locale Based
 Operators (French included)
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    [ http://issues.apache.org/jira/browse/LUCENE-682?page=comments#action_12456295 ] 
            
Yonik Seeley commented on LUCENE-682:
-------------------------------------

That's untested code of course... I just noticed that 
       case '\\' : b.append(s.charAt(++i)); break;
       case '\'' : inString=!inString; break; 
should probably be 
        case '"': if (++i<len) {b.append(ch); ch=s.charAt(i);} break;
       case '\'' : inString=!inString; break;

It can probably be made faster too... but the point is that it's independent of the query parser and more easily customized.

> QueryParser with Locale Based Operators (French included)
> ---------------------------------------------------------
>
>                 Key: LUCENE-682
>                 URL: http://issues.apache.org/jira/browse/LUCENE-682
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: QueryParser
>            Reporter: Patrick Turcotte
>         Assigned To: Hoss Man
>            Priority: Minor
>         Attachments: LocalizedQueryParser.patch, LocalizedQueryParser.patch, LocalizedQueryParser.zip, LocalizedQueryParserDemo.java, LocalizedQueryParserOperatorsMicroBench.java, QueryParser.jj, QueryParser.jj.patch, QueryParser.properties, QueryParser_fr.properties, TestQueryParserLocaleOperators.java
>
>
> Here is a version of the QueryParser that can "understand" the AND, OR and NOT keyword in other languages.
> If activated, 
> - "a ET b" should return the same query as "a AND b", namely: "+a +b"
> - "a OU b" should return the same query as "a OR b", namely: "a b"
> - "a SAUF b" should return the same query as "a NOT b", namely: "a -b"
> Here are its main points : 
> 1) Patched from revision 454774 of lucene 2.1dev (trunk) (probably could be used with other versions)
> 2) The "ant test" target is still successful when the modified QueryParser is used
> 3) It doesn't break actual code
> 4) The default behavior is the same as before
> 5) It has to be deliberately activated
> 6) It use ResourceBundle to find the keywords translation
> 7) Comes with FRENCH translation
> 8) Comes with JUnit testCases
> 9) Adds 1 public method to QueryParser
> 10) Expands the TOKEN <TERM>
> 11) Use TOKEN_MGR_DECLS to set some field for the TokenManager

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