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https://issues.apache.org/jira/browse/LUCENE-2167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12888490#action_12888490
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Steven Rowe commented on LUCENE-2167:
-------------------------------------

bq. I think any perf issues are resolved, I also think the DFA size is more 
manageable from our previous changes, and arguably ok now (ill defer to your 
judgement on whether we need to attack this more though).

To address the DFA size I want to try your previous suggestion of a simpler 
IPv6 regex in the JFlex grammar, then full validation in the action via a 
java.util.regex NFA.   You've previously said that you thought returning a new 
type like INVALID_URL would be fine, but I'd prefer not to do that - I want to 
try backing out and trying an alternate path if this action-based validation 
fails.

bq. What about standardfilter with the new scheme?

I don't have an opinion on this one, except that it seems a little weird to 
have a no-op filter in the standard analyzer chain.



> 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
>            Reporter: Shyamal Prasad
>            Assignee: Robert Muir
>            Priority: Minor
>         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, 
> standard.zip
>
>   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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