lucene-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Koji Sekiguchi (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-973) Token of "" returns in CJK
Date Sun, 17 Feb 2008 15:10:34 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-973?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12569706#action_12569706
] 

Koji Sekiguchi commented on LUCENE-973:
---------------------------------------

The current CJKTokenizer returns a redundant empty string at the end of token stream when
it tokenizes CJK characters.

String str = "C1C2C3";
Tokenizer tokenizer = new CJKTokenizer( new StringReader( str ) );
for( Token token = tokenizer.next(); token != null; token = tokenizer.next() )
    System.out.println( "token = \"" + token.termText() + "\"" );

This should be:

token = "C1C2"
token = "C2C3"

but the current CJKTokenizer outputs:

token = "C1C2"
token = "C2C3"
token = ""

The attached test case reproduce this problem and the patch solves it.

> Token of  "" returns in CJK
> ---------------------------
>
>                 Key: LUCENE-973
>                 URL: https://issues.apache.org/jira/browse/LUCENE-973
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: Analysis
>    Affects Versions: 2.3
>            Reporter: Toru Matsuzawa
>         Attachments: CJKTokenizer20070807.patch
>
>
> The "" string returns as Token in the boundary of two byte character and one byte character.

> There is no problem in CJKAnalyzer. 
> When CJKTokenizer is used with the unit, it becomes a problem. (Use it with 
> Solr etc.)

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


---------------------------------------------------------------------
To unsubscribe, e-mail: java-dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: java-dev-help@lucene.apache.org


Mime
View raw message