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From "Robert Muir (JIRA)" <>
Subject [jira] Commented: (LUCENE-2745) ArabicAnalyzer - the ability to recognise email addresses host names and so on
Date Sun, 07 Nov 2010 16:36:08 GMT


Robert Muir commented on LUCENE-2745:

I agree with what Steven said here... since previously StandardTokenizer would break on diacritics
(shadda, etc)
it wasn't appropriate for arabic writing systems, so we added ArabicLetterTokenizer as a workaround.

but you can use a different tokenizer in your own Analyzer to meet your needs... and we should
try to avoid 
(deprecate+remove) language-specific tokenizers if we can.

the only trick to deprecating this ArabicLetterTokenizer is the persian case, since i dont
think UAX#29 will split on
zero-width-non-joiner, so we need to do something to handle that case, otherwise we can default
to a better tokenizer here.

> ArabicAnalyzer - the ability to recognise email addresses host names and so on
> ------------------------------------------------------------------------------
>                 Key: LUCENE-2745
>                 URL:
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: contrib/analyzers
>    Affects Versions: 2.9.2, 2.9.3, 3.0, 3.0.1, 3.0.2
>         Environment: All
>            Reporter: M Alexander
> The ArabicAnalyzer does not recognise email addresses, hostnames and so on. For example,
> will be tokenised to [adam] [hotmail] [com]
> It would be great if the ArabicAnalyzer can tokenises this to []. The
same applies to hostnames and so on.
> Can this be resolved? I hope so
> Thanks

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