lucene-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Robert Muir (JIRA)" <>
Subject [jira] Updated: (LUCENE-1689) supplementary character handling
Date Fri, 12 Jun 2009 18:50:07 GMT


Robert Muir updated LUCENE-1689:

    Attachment: LUCENE-1689_lowercase_example.txt

an example of how LowercaseFilter might be fixed. 
I only changed the new-api method for demonstration purposes.

> supplementary character handling
> --------------------------------
>                 Key: LUCENE-1689
>                 URL:
>             Project: Lucene - Java
>          Issue Type: Improvement
>            Reporter: Robert Muir
>            Priority: Minor
>         Attachments: LUCENE-1689_lowercase_example.txt
> for Java 5. Java 5 is based on unicode 4, which means variable-width encoding.
> supplementary character support should be fixed for code that works with char/char[]
> For example:
> StandardAnalyzer, SimpleAnalyzer, StopAnalyzer, etc should at least be changed so they
don't actually remove suppl characters, or modified to look for surrogates and behave correctly.
> LowercaseFilter should be modified to lowercase suppl. characters correctly.
> CharTokenizer should either be deprecated or changed so that isTokenChar() and normalize()
use int.
> in all of these cases code should remain optimized for the BMP case, and suppl characters
should be the exception, but still work.

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:
For additional commands, e-mail:

View raw message