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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-2167) Implement StandardTokenizer with the UAX#29 Standard
Date Mon, 08 Nov 2010 13:04:23 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12929560#action_12929560
] 

Robert Muir commented on LUCENE-2167:
-------------------------------------

{quote}
In theory, you should just feed initial text as a single monster token from hell into analysis
chain, and then you only have TokenFilters, none/one/some of which might split this token.
If there are no TokenFilters at all, you get a NOT_ANALYZED case without extra flags, yahoo!

The only problem here is the need for ability to wrap arbitrary Reader in a TermAttribute
:/
{quote}

No thanks, i dont want to read my entire documents into RAM and have massive gc'ing going
on.
We don't need to have a mega-tokenizer that solves everyones problems... this is just supposed
to be a good "general-purpose" tokenizer.


> Implement StandardTokenizer with the UAX#29 Standard
> ----------------------------------------------------
>
>                 Key: LUCENE-2167
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2167
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: contrib/analyzers
>    Affects Versions: 3.1, 4.0
>            Reporter: Shyamal Prasad
>            Assignee: Steven Rowe
>            Priority: Minor
>             Fix For: 3.1, 4.0
>
>         Attachments: LUCENE-2167-jflex-tld-macro-gen.patch, LUCENE-2167-jflex-tld-macro-gen.patch,
LUCENE-2167-jflex-tld-macro-gen.patch, LUCENE-2167-lucene-buildhelper-maven-plugin.patch,
LUCENE-2167.benchmark.patch, LUCENE-2167.benchmark.patch, LUCENE-2167.benchmark.patch, LUCENE-2167.patch,
LUCENE-2167.patch, LUCENE-2167.patch, LUCENE-2167.patch, LUCENE-2167.patch, LUCENE-2167.patch,
LUCENE-2167.patch, LUCENE-2167.patch, LUCENE-2167.patch, LUCENE-2167.patch, LUCENE-2167.patch,
LUCENE-2167.patch, LUCENE-2167.patch, LUCENE-2167.patch, LUCENE-2167.patch, LUCENE-2167.patch,
LUCENE-2167.patch, LUCENE-2167.patch, LUCENE-2167.patch, standard.zip, StandardTokenizerImpl.jflex
>
>   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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