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From "Robert Muir (JIRA)" <>
Subject [jira] Commented: (LUCENE-2167) Implement StandardTokenizer with the UAX#29 Standard
Date Mon, 10 May 2010 12:06:48 GMT


Robert Muir commented on LUCENE-2167:

Hi Steven: this is impressive progress!

What do you think the next steps should be?
* should we look at any tailorings to this? The first thing that comes to mind is full-width
forms, which have no WordBreak property
* is it simple, or would it be messy, to apply this to the existing grammar (English/EuroTokenizer)?
Another way to say it, is it possible for
  English/EuroTokenizer (StandardTokenizer today) to instead be a tailoring to UAX#29, for
companies,acronym, etc, such that if it encounters
  say some hindi or thai text it will behave better?

> Implement StandardTokenizer with the UAX#29 Standard
> ----------------------------------------------------
>                 Key: LUCENE-2167
>                 URL:
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: contrib/analyzers
>    Affects Versions: 3.1
>            Reporter: Shyamal Prasad
>            Assignee: Steven Rowe
>            Priority: Minor
>         Attachments: LUCENE-2167.patch, LUCENE-2167.patch, LUCENE-2167.patch, LUCENE-2167.patch,
>   Original Estimate: 0.5h
>  Remaining Estimate: 0.5h
> It would be really nice for StandardTokenizer to adhere straight to the standard as much
as we can with jflex. Then its name would actually make sense.
> Such a transition would involve renaming the old StandardTokenizer to EuropeanTokenizer,
as its javadoc claims:
> bq. This should be a good tokenizer for most European-language documents
> The new StandardTokenizer could then say
> bq. This should be a good tokenizer for most languages.
> All the english/euro-centric stuff like the acronym/company/apostrophe stuff can stay
with that EuropeanTokenizer, and it could be used by the european analyzers.

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